id sid tid token lemma pos 40404 1 1 Transcriber Transcriber NNP 40404 1 2 's 's POS 40404 1 3 Note note NN 40404 1 4 : : : 40404 1 5 _ _ NNP 40404 1 6 Text Text NNP 40404 1 7 _ _ NNP 40404 1 8 and and CC 40404 1 9 = = SYM 40404 1 10 Text= Text= NNP 40404 1 11 represent represent VB 40404 1 12 italic italic JJ 40404 1 13 and and CC 40404 1 14 bold bold JJ 40404 1 15 text text NN 40404 1 16 respectively respectively RB 40404 1 17 . . . 40404 2 1 Subscripts subscript NNS 40404 2 2 are be VBP 40404 2 3 displayed display VBN 40404 2 4 as as IN 40404 2 5 an an DT 40404 2 6 underscore underscore NN 40404 2 7 followed follow VBN 40404 2 8 by by IN 40404 2 9 the the DT 40404 2 10 number number NN 40404 2 11 or or CC 40404 2 12 text text NN 40404 2 13 in in IN 40404 2 14 braces brace NNS 40404 2 15 : : : 40404 2 16 SiO_{2 SiO_{2 NNP 40404 2 17 } } -RRB- 40404 2 18 . . . 40404 2 19 ] ] -RRB- 40404 3 1 * * NFP 40404 3 2 * * NFP 40404 3 3 * * NFP 40404 3 4 * * NFP 40404 3 5 * * NFP 40404 3 6 [ [ -LRB- 40404 3 7 Illustration illustration NN 40404 3 8 : : : 40404 3 9 A a DT 40404 3 10 Valley Valley NNP 40404 3 11 with with IN 40404 3 12 Rocky Rocky NNP 40404 3 13 Ledges Ledges NNP 40404 3 14 cut cut VBD 40404 3 15 in in IN 40404 3 16 the the DT 40404 3 17 Horizontal Horizontal NNP 40404 3 18 Strata Strata NNP 40404 3 19 , , , 40404 3 20 Scotland Scotland NNP 40404 3 21 ] ] -RRB- 40404 3 22 THE the DT 40404 3 23 ELEMENTS element NNS 40404 3 24 OF of IN 40404 3 25 GEOLOGY geology NN 40404 3 26 BY by IN 40404 3 27 WILLIAM WILLIAM NNS 40404 3 28 HARMON HARMON NNP 40404 3 29 NORTON norton VBP 40404 3 30 PROFESSOR PROFESSOR NNS 40404 3 31 OF of IN 40404 3 32 GEOLOGY geology NN 40404 3 33 IN in IN 40404 3 34 CORNELL CORNELL NNP 40404 3 35 COLLEGE COLLEGE NNP 40404 3 36 GINN GINN NNP 40404 3 37 & & CC 40404 3 38 COMPANY COMPANY NNP 40404 3 39 BOSTON BOSTON NNP 40404 3 40 * * NFP 40404 3 41 NEW NEW NNP 40404 3 42 YORK YORK NNP 40404 3 43 * * NFP 40404 3 44 CHICAGO CHICAGO NNP 40404 3 45 * * NFP 40404 3 46 LONDON LONDON NNP 40404 3 47 Copyright Copyright NNP 40404 3 48 , , , 40404 3 49 1905 1905 CD 40404 3 50 , , , 40404 3 51 1921 1921 CD 40404 3 52 , , , 40404 3 53 by by IN 40404 3 54 WILLIAM WILLIAM NNP 40404 3 55 HARMON HARMON NNP 40404 3 56 NORTON norton VBP 40404 3 57 ALL all DT 40404 3 58 RIGHTS right NNS 40404 3 59 RESERVED reserve VBN 40404 3 60 5511 5511 CD 40404 3 61 The The NNP 40404 3 62 Atheneum Atheneum NNP 40404 3 63 Press Press NNP 40404 3 64 GINN GINN NNP 40404 3 65 & & CC 40404 3 66 COMPANY COMPANY NNP 40404 3 67 PROPRIETORS PROPRIETORS NNP 40404 3 68 BOSTON BOSTON NNP 40404 3 69 * * NFP 40404 3 70 U.S.A. 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NNP 40404 4 1 PREFACE PREFACE NNP 40404 4 2 Geology Geology NNP 40404 4 3 is be VBZ 40404 4 4 a a DT 40404 4 5 science science NN 40404 4 6 of of IN 40404 4 7 such such JJ 40404 4 8 rapid rapid JJ 40404 4 9 growth growth NN 40404 4 10 that that WDT 40404 4 11 no no DT 40404 4 12 apology apology NN 40404 4 13 is be VBZ 40404 4 14 expected expect VBN 40404 4 15 when when WRB 40404 4 16 from from IN 40404 4 17 time time NN 40404 4 18 to to IN 40404 4 19 time time NN 40404 4 20 a a DT 40404 4 21 new new JJ 40404 4 22 text text NN 40404 4 23 - - HYPH 40404 4 24 book book NN 40404 4 25 is be VBZ 40404 4 26 added add VBN 40404 4 27 to to IN 40404 4 28 those those DT 40404 4 29 already already RB 40404 4 30 in in IN 40404 4 31 the the DT 40404 4 32 field field NN 40404 4 33 . . . 40404 5 1 The the DT 40404 5 2 present present JJ 40404 5 3 work work NN 40404 5 4 , , , 40404 5 5 however however RB 40404 5 6 , , , 40404 5 7 is be VBZ 40404 5 8 the the DT 40404 5 9 outcome outcome NN 40404 5 10 of of IN 40404 5 11 the the DT 40404 5 12 need need NN 40404 5 13 of of IN 40404 5 14 a a DT 40404 5 15 text text NN 40404 5 16 - - HYPH 40404 5 17 book book NN 40404 5 18 of of IN 40404 5 19 very very RB 40404 5 20 simple simple JJ 40404 5 21 outline outline NN 40404 5 22 , , , 40404 5 23 in in IN 40404 5 24 which which WDT 40404 5 25 causes cause NNS 40404 5 26 and and CC 40404 5 27 their -PRON- PRP$ 40404 5 28 consequences consequence NNS 40404 5 29 should should MD 40404 5 30 be be VB 40404 5 31 knit knit VBN 40404 5 32 together together RB 40404 5 33 as as RB 40404 5 34 closely closely RB 40404 5 35 as as IN 40404 5 36 possible,--a possible,--a NNP 40404 5 37 need need VBP 40404 5 38 long long RB 40404 5 39 felt feel VBN 40404 5 40 by by IN 40404 5 41 the the DT 40404 5 42 author author NN 40404 5 43 in in IN 40404 5 44 his -PRON- PRP$ 40404 5 45 teaching teaching NN 40404 5 46 , , , 40404 5 47 and and CC 40404 5 48 perhaps perhaps RB 40404 5 49 by by IN 40404 5 50 other other JJ 40404 5 51 teachers teacher NNS 40404 5 52 also also RB 40404 5 53 . . . 40404 6 1 The the DT 40404 6 2 author author NN 40404 6 3 has have VBZ 40404 6 4 ventured venture VBN 40404 6 5 , , , 40404 6 6 therefore therefore RB 40404 6 7 , , , 40404 6 8 to to TO 40404 6 9 depart depart VB 40404 6 10 from from IN 40404 6 11 the the DT 40404 6 12 common common JJ 40404 6 13 usage usage NN 40404 6 14 which which WDT 40404 6 15 subdivides subdivide VBZ 40404 6 16 geology geology NN 40404 6 17 into into IN 40404 6 18 a a DT 40404 6 19 number number NN 40404 6 20 of of IN 40404 6 21 departments,--dynamical departments,--dynamical JJ 40404 6 22 , , , 40404 6 23 structural structural JJ 40404 6 24 , , , 40404 6 25 physiographic physiographic JJ 40404 6 26 , , , 40404 6 27 and and CC 40404 6 28 historical,--and historical,--and NNP 40404 6 29 to to TO 40404 6 30 treat treat VB 40404 6 31 in in IN 40404 6 32 immediate immediate JJ 40404 6 33 connection connection NN 40404 6 34 with with IN 40404 6 35 each each DT 40404 6 36 geological geological JJ 40404 6 37 process process NN 40404 6 38 the the DT 40404 6 39 land land NN 40404 6 40 forms form NNS 40404 6 41 and and CC 40404 6 42 the the DT 40404 6 43 rock rock NN 40404 6 44 structures structure NNS 40404 6 45 which which WDT 40404 6 46 it -PRON- PRP 40404 6 47 has have VBZ 40404 6 48 produced produce VBN 40404 6 49 . . . 40404 7 1 It -PRON- PRP 40404 7 2 is be VBZ 40404 7 3 hoped hope VBN 40404 7 4 that that IN 40404 7 5 the the DT 40404 7 6 facts fact NNS 40404 7 7 of of IN 40404 7 8 geology geology NN 40404 7 9 and and CC 40404 7 10 the the DT 40404 7 11 inferences inference NNS 40404 7 12 drawn draw VBN 40404 7 13 from from IN 40404 7 14 them -PRON- PRP 40404 7 15 have have VBP 40404 7 16 been be VBN 40404 7 17 so so RB 40404 7 18 presented present VBN 40404 7 19 as as IN 40404 7 20 to to TO 40404 7 21 afford afford VB 40404 7 22 an an DT 40404 7 23 efficient efficient JJ 40404 7 24 discipline discipline NN 40404 7 25 in in IN 40404 7 26 inductive inductive JJ 40404 7 27 reasoning reasoning NN 40404 7 28 . . . 40404 8 1 Typical typical JJ 40404 8 2 examples example NNS 40404 8 3 have have VBP 40404 8 4 been be VBN 40404 8 5 used use VBN 40404 8 6 to to TO 40404 8 7 introduce introduce VB 40404 8 8 many many JJ 40404 8 9 topics topic NNS 40404 8 10 , , , 40404 8 11 and and CC 40404 8 12 it -PRON- PRP 40404 8 13 has have VBZ 40404 8 14 been be VBN 40404 8 15 the the DT 40404 8 16 author author NN 40404 8 17 's 's POS 40404 8 18 aim aim NN 40404 8 19 to to TO 40404 8 20 give give VB 40404 8 21 due due JJ 40404 8 22 proportion proportion NN 40404 8 23 to to IN 40404 8 24 both both CC 40404 8 25 the the DT 40404 8 26 wide wide JJ 40404 8 27 generalizations generalization NNS 40404 8 28 of of IN 40404 8 29 our -PRON- PRP$ 40404 8 30 science science NN 40404 8 31 and and CC 40404 8 32 to to IN 40404 8 33 the the DT 40404 8 34 concrete concrete JJ 40404 8 35 facts fact NNS 40404 8 36 on on IN 40404 8 37 which which WDT 40404 8 38 they -PRON- PRP 40404 8 39 rest rest VBP 40404 8 40 . . . 40404 9 1 There there EX 40404 9 2 have have VBP 40404 9 3 been be VBN 40404 9 4 added add VBN 40404 9 5 a a DT 40404 9 6 number number NN 40404 9 7 of of IN 40404 9 8 practical practical JJ 40404 9 9 exercises exercise NNS 40404 9 10 such such JJ 40404 9 11 as as IN 40404 9 12 the the DT 40404 9 13 author author NN 40404 9 14 has have VBZ 40404 9 15 used use VBN 40404 9 16 for for IN 40404 9 17 several several JJ 40404 9 18 years year NNS 40404 9 19 in in IN 40404 9 20 the the DT 40404 9 21 class class NN 40404 9 22 room room NN 40404 9 23 . . . 40404 10 1 These these DT 40404 10 2 are be VBP 40404 10 3 not not RB 40404 10 4 made make VBN 40404 10 5 so so RB 40404 10 6 numerous numerous JJ 40404 10 7 as as IN 40404 10 8 to to TO 40404 10 9 displace displace VB 40404 10 10 the the DT 40404 10 11 problems problem NNS 40404 10 12 which which WDT 40404 10 13 no no RB 40404 10 14 doubt doubt VBP 40404 10 15 many many JJ 40404 10 16 teachers teacher NNS 40404 10 17 prefer prefer VBP 40404 10 18 to to TO 40404 10 19 have have VB 40404 10 20 their -PRON- PRP$ 40404 10 21 pupils pupil NNS 40404 10 22 solve solve VB 40404 10 23 impromptu impromptu RB 40404 10 24 during during IN 40404 10 25 the the DT 40404 10 26 recitation recitation NN 40404 10 27 , , , 40404 10 28 but but CC 40404 10 29 may may MD 40404 10 30 , , , 40404 10 31 it -PRON- PRP 40404 10 32 is be VBZ 40404 10 33 hoped hope VBN 40404 10 34 , , , 40404 10 35 suggest suggest VBP 40404 10 36 their -PRON- PRP$ 40404 10 37 use use NN 40404 10 38 . . . 40404 11 1 In in IN 40404 11 2 historical historical JJ 40404 11 3 geology geology NN 40404 11 4 a a DT 40404 11 5 broad broad JJ 40404 11 6 view view NN 40404 11 7 is be VBZ 40404 11 8 given give VBN 40404 11 9 of of IN 40404 11 10 the the DT 40404 11 11 development development NN 40404 11 12 of of IN 40404 11 13 the the DT 40404 11 14 North north JJ 40404 11 15 American american JJ 40404 11 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40404 13 2 omitting omit VBG 40404 13 3 much much JJ 40404 13 4 technical technical JJ 40404 13 5 detail detail NN 40404 13 6 of of IN 40404 13 7 a a DT 40404 13 8 mineralogical mineralogical JJ 40404 13 9 and and CC 40404 13 10 palæontological palæontological JJ 40404 13 11 nature nature NN 40404 13 12 , , , 40404 13 13 and and CC 40404 13 14 by by IN 40404 13 15 confining confine VBG 40404 13 16 the the DT 40404 13 17 field field NN 40404 13 18 of of IN 40404 13 19 view view NN 40404 13 20 almost almost RB 40404 13 21 wholly wholly RB 40404 13 22 to to IN 40404 13 23 our -PRON- PRP$ 40404 13 24 own own JJ 40404 13 25 continent continent NN 40404 13 26 , , , 40404 13 27 space space NN 40404 13 28 has have VBZ 40404 13 29 been be VBN 40404 13 30 obtained obtain VBN 40404 13 31 to to TO 40404 13 32 give give VB 40404 13 33 to to IN 40404 13 34 what what WP 40404 13 35 are be VBP 40404 13 36 deemed deem VBN 40404 13 37 for for IN 40404 13 38 beginners beginner NNS 40404 13 39 the the DT 40404 13 40 essentials essential NNS 40404 13 41 of of IN 40404 13 42 the the DT 40404 13 43 science science NN 40404 13 44 a a DT 40404 13 45 fuller full JJR 40404 13 46 treatment treatment NN 40404 13 47 than than IN 40404 13 48 perhaps perhaps RB 40404 13 49 is be VBZ 40404 13 50 common common JJ 40404 13 51 . . . 40404 14 1 It -PRON- PRP 40404 14 2 is be VBZ 40404 14 3 assumed assume VBN 40404 14 4 that that DT 40404 14 5 field field NN 40404 14 6 work work NN 40404 14 7 will will MD 40404 14 8 be be VB 40404 14 9 introduced introduce VBN 40404 14 10 with with IN 40404 14 11 the the DT 40404 14 12 commencement commencement NN 40404 14 13 of of IN 40404 14 14 the the DT 40404 14 15 study study NN 40404 14 16 . . . 40404 15 1 The the DT 40404 15 2 common common JJ 40404 15 3 rocks rock NNS 40404 15 4 are be VBP 40404 15 5 therefore therefore RB 40404 15 6 briefly briefly RB 40404 15 7 described describe VBN 40404 15 8 in in IN 40404 15 9 the the DT 40404 15 10 opening opening NN 40404 15 11 chapters chapter NNS 40404 15 12 . . . 40404 16 1 The the DT 40404 16 2 drift drift NN 40404 16 3 also also RB 40404 16 4 receives receive VBZ 40404 16 5 early early JJ 40404 16 6 mention mention NN 40404 16 7 , , , 40404 16 8 and and CC 40404 16 9 teachers teacher NNS 40404 16 10 in in IN 40404 16 11 the the DT 40404 16 12 northern northern JJ 40404 16 13 states state NNS 40404 16 14 who who WP 40404 16 15 begin begin VBP 40404 16 16 geology geology NN 40404 16 17 in in IN 40404 16 18 the the DT 40404 16 19 fall fall NN 40404 16 20 may may MD 40404 16 21 prefer prefer VB 40404 16 22 to to TO 40404 16 23 take take VB 40404 16 24 up up RP 40404 16 25 the the DT 40404 16 26 chapter chapter NN 40404 16 27 on on IN 40404 16 28 the the DT 40404 16 29 Pleistocene Pleistocene NNP 40404 16 30 immediately immediately RB 40404 16 31 after after IN 40404 16 32 the the DT 40404 16 33 chapter chapter NN 40404 16 34 on on IN 40404 16 35 glaciers glacier NNS 40404 16 36 . . . 40404 17 1 Simple simple JJ 40404 17 2 diagrams diagram NNS 40404 17 3 have have VBP 40404 17 4 been be VBN 40404 17 5 used use VBN 40404 17 6 freely freely RB 40404 17 7 , , , 40404 17 8 not not RB 40404 17 9 only only RB 40404 17 10 because because IN 40404 17 11 they -PRON- PRP 40404 17 12 are be VBP 40404 17 13 often often RB 40404 17 14 clearer clear JJR 40404 17 15 than than IN 40404 17 16 any any DT 40404 17 17 verbal verbal JJ 40404 17 18 statement statement NN 40404 17 19 , , , 40404 17 20 but but CC 40404 17 21 also also RB 40404 17 22 because because IN 40404 17 23 they -PRON- PRP 40404 17 24 readily readily RB 40404 17 25 lend lend VBP 40404 17 26 themselves -PRON- PRP 40404 17 27 to to IN 40404 17 28 reproduction reproduction NN 40404 17 29 on on IN 40404 17 30 the the DT 40404 17 31 blackboard blackboard NN 40404 17 32 by by IN 40404 17 33 the the DT 40404 17 34 pupil pupil NN 40404 17 35 . . . 40404 18 1 The the DT 40404 18 2 text text NN 40404 18 3 will will MD 40404 18 4 suggest suggest VB 40404 18 5 others other NNS 40404 18 6 which which WDT 40404 18 7 the the DT 40404 18 8 pupil pupil NN 40404 18 9 may may MD 40404 18 10 invent invent VB 40404 18 11 . . . 40404 19 1 It -PRON- PRP 40404 19 2 is be VBZ 40404 19 3 hoped hope VBN 40404 19 4 that that IN 40404 19 5 the the DT 40404 19 6 photographic photographic JJ 40404 19 7 views view NNS 40404 19 8 may may MD 40404 19 9 also also RB 40404 19 10 be be VB 40404 19 11 used use VBN 40404 19 12 for for IN 40404 19 13 exercises exercise NNS 40404 19 14 in in IN 40404 19 15 the the DT 40404 19 16 class class NN 40404 19 17 room room NN 40404 19 18 . . . 40404 20 1 The the DT 40404 20 2 generous generous JJ 40404 20 3 aid aid NN 40404 20 4 of of IN 40404 20 5 many many JJ 40404 20 6 friends friend NNS 40404 20 7 is be VBZ 40404 20 8 recognized recognize VBN 40404 20 9 with with IN 40404 20 10 special special JJ 40404 20 11 pleasure pleasure NN 40404 20 12 . . . 40404 21 1 To to IN 40404 21 2 Professor Professor NNP 40404 21 3 W. W. NNP 40404 21 4 M. M. NNP 40404 21 5 Davis Davis NNP 40404 21 6 of of IN 40404 21 7 Harvard Harvard NNP 40404 21 8 University University NNP 40404 21 9 there there EX 40404 21 10 is be VBZ 40404 21 11 owing owe VBG 40404 21 12 a a DT 40404 21 13 large large JJ 40404 21 14 obligation obligation NN 40404 21 15 for for IN 40404 21 16 the the DT 40404 21 17 broad broad JJ 40404 21 18 conceptions conception NNS 40404 21 19 and and CC 40404 21 20 luminous luminous JJ 40404 21 21 statements statement NNS 40404 21 22 of of IN 40404 21 23 geologic geologic JJ 40404 21 24 facts fact NNS 40404 21 25 and and CC 40404 21 26 principles principle NNS 40404 21 27 with with IN 40404 21 28 which which WDT 40404 21 29 he -PRON- PRP 40404 21 30 has have VBZ 40404 21 31 enriched enrich VBN 40404 21 32 the the DT 40404 21 33 literature literature NN 40404 21 34 of of IN 40404 21 35 our -PRON- PRP$ 40404 21 36 science science NN 40404 21 37 , , , 40404 21 38 and and CC 40404 21 39 for for IN 40404 21 40 his -PRON- PRP$ 40404 21 41 stimulating stimulating JJ 40404 21 42 influence influence NN 40404 21 43 in in IN 40404 21 44 education education NN 40404 21 45 . . . 40404 22 1 It -PRON- PRP 40404 22 2 is be VBZ 40404 22 3 hoped hope VBN 40404 22 4 that that IN 40404 22 5 both both DT 40404 22 6 in in IN 40404 22 7 subject subject NN 40404 22 8 - - HYPH 40404 22 9 matter matter NN 40404 22 10 and and CC 40404 22 11 in in IN 40404 22 12 method method NN 40404 22 13 the the DT 40404 22 14 book book NN 40404 22 15 itself -PRON- PRP 40404 22 16 makes make VBZ 40404 22 17 evident evident JJ 40404 22 18 this this DT 40404 22 19 debt debt NN 40404 22 20 . . . 40404 23 1 But but CC 40404 23 2 besides besides IN 40404 23 3 a a DT 40404 23 4 general general JJ 40404 23 5 obligation obligation NN 40404 23 6 shared share VBN 40404 23 7 by by IN 40404 23 8 geologists geologist NNS 40404 23 9 everywhere everywhere RB 40404 23 10 , , , 40404 23 11 and and CC 40404 23 12 in in IN 40404 23 13 varying vary VBG 40404 23 14 degrees degree NNS 40404 23 15 by by IN 40404 23 16 perhaps perhaps RB 40404 23 17 all all DT 40404 23 18 authors author NNS 40404 23 19 of of IN 40404 23 20 recent recent JJ 40404 23 21 American american JJ 40404 23 22 text text NN 40404 23 23 - - HYPH 40404 23 24 books book NNS 40404 23 25 in in IN 40404 23 26 earth earth NN 40404 23 27 science science NN 40404 23 28 , , , 40404 23 29 there there EX 40404 23 30 is be VBZ 40404 23 31 owing owe VBG 40404 23 32 a a DT 40404 23 33 debt debt NN 40404 23 34 direct direct JJ 40404 23 35 and and CC 40404 23 36 personal personal JJ 40404 23 37 . . . 40404 24 1 The the DT 40404 24 2 plan plan NN 40404 24 3 of of IN 40404 24 4 the the DT 40404 24 5 book book NN 40404 24 6 , , , 40404 24 7 with with IN 40404 24 8 its -PRON- PRP$ 40404 24 9 use use NN 40404 24 10 of of IN 40404 24 11 problems problem NNS 40404 24 12 and and CC 40404 24 13 treatment treatment NN 40404 24 14 of of IN 40404 24 15 land land NN 40404 24 16 forms form NNS 40404 24 17 and and CC 40404 24 18 rock rock NN 40404 24 19 structures structure NNS 40404 24 20 in in IN 40404 24 21 immediate immediate JJ 40404 24 22 connection connection NN 40404 24 23 with with IN 40404 24 24 the the DT 40404 24 25 processes process NNS 40404 24 26 which which WDT 40404 24 27 produce produce VBP 40404 24 28 them -PRON- PRP 40404 24 29 , , , 40404 24 30 was be VBD 40404 24 31 submitted submit VBN 40404 24 32 to to IN 40404 24 33 Professor Professor NNP 40404 24 34 Davis Davis NNP 40404 24 35 , , , 40404 24 36 and and CC 40404 24 37 , , , 40404 24 38 receiving receive VBG 40404 24 39 his -PRON- PRP$ 40404 24 40 approval approval NN 40404 24 41 , , , 40404 24 42 was be VBD 40404 24 43 carried carry VBN 40404 24 44 into into IN 40404 24 45 effect effect NN 40404 24 46 , , , 40404 24 47 although although IN 40404 24 48 without without IN 40404 24 49 the the DT 40404 24 50 sanction sanction NN 40404 24 51 of of IN 40404 24 52 precedent precedent NN 40404 24 53 at at IN 40404 24 54 the the DT 40404 24 55 time time NN 40404 24 56 . . . 40404 25 1 Professor Professor NNP 40404 25 2 Davis Davis NNP 40404 25 3 also also RB 40404 25 4 kindly kindly RB 40404 25 5 consented consent VBD 40404 25 6 to to TO 40404 25 7 read read VB 40404 25 8 the the DT 40404 25 9 manuscript manuscript NN 40404 25 10 throughout throughout RB 40404 25 11 , , , 40404 25 12 and and CC 40404 25 13 his -PRON- PRP$ 40404 25 14 many many JJ 40404 25 15 helpful helpful JJ 40404 25 16 criticisms criticism NNS 40404 25 17 and and CC 40404 25 18 suggestions suggestion NNS 40404 25 19 are be VBP 40404 25 20 acknowledged acknowledge VBN 40404 25 21 with with IN 40404 25 22 sincere sincere JJ 40404 25 23 gratitude gratitude NN 40404 25 24 . . . 40404 26 1 Parts part NNS 40404 26 2 of of IN 40404 26 3 the the DT 40404 26 4 manuscript manuscript NN 40404 26 5 have have VBP 40404 26 6 been be VBN 40404 26 7 reviewed review VBN 40404 26 8 by by IN 40404 26 9 Dr. Dr. NNP 40404 26 10 Samuel Samuel NNP 40404 26 11 Calvin Calvin NNP 40404 26 12 and and CC 40404 26 13 Dr. Dr. NNP 40404 26 14 Frank Frank NNP 40404 26 15 M. M. NNP 40404 26 16 Wilder Wilder NNP 40404 26 17 of of IN 40404 26 18 the the DT 40404 26 19 State State NNP 40404 26 20 University University NNP 40404 26 21 of of IN 40404 26 22 Iowa Iowa NNP 40404 26 23 ; ; : 40404 26 24 Dr. Dr. NNP 40404 26 25 S. S. NNP 40404 26 26 W. W. NNP 40404 26 27 Beyer Beyer NNP 40404 26 28 of of IN 40404 26 29 the the DT 40404 26 30 Iowa Iowa NNP 40404 26 31 College College NNP 40404 26 32 of of IN 40404 26 33 Agriculture Agriculture NNP 40404 26 34 and and CC 40404 26 35 Mechanic Mechanic NNP 40404 26 36 Arts Arts NNPS 40404 26 37 ; ; : 40404 26 38 Dr. Dr. NNP 40404 26 39 U. U. NNP 40404 26 40 S. S. NNP 40404 26 41 Grant Grant NNP 40404 26 42 of of IN 40404 26 43 Northwestern Northwestern NNP 40404 26 44 University University NNP 40404 26 45 ; ; : 40404 26 46 Professor Professor NNP 40404 26 47 J. J. NNP 40404 27 1 A. A. NNP 40404 27 2 Udden Udden NNP 40404 27 3 of of IN 40404 27 4 Augustana Augustana NNP 40404 27 5 College College NNP 40404 27 6 , , , 40404 27 7 Illinois Illinois NNP 40404 27 8 ; ; : 40404 27 9 Dr. Dr. NNP 40404 27 10 C. C. NNP 40404 27 11 H. H. NNP 40404 27 12 Gordon Gordon NNP 40404 27 13 of of IN 40404 27 14 the the DT 40404 27 15 New New NNP 40404 27 16 Mexico Mexico NNP 40404 27 17 State State NNP 40404 27 18 School School NNP 40404 27 19 of of IN 40404 27 20 Mines Mines NNPS 40404 27 21 ; ; : 40404 27 22 Principal Principal NNP 40404 27 23 Maurice Maurice NNP 40404 27 24 Ricker Ricker NNP 40404 27 25 of of IN 40404 27 26 the the DT 40404 27 27 High High NNP 40404 27 28 School School NNP 40404 27 29 , , , 40404 27 30 Burlington Burlington NNP 40404 27 31 , , , 40404 27 32 Iowa Iowa NNP 40404 27 33 ; ; : 40404 27 34 and and CC 40404 27 35 the the DT 40404 27 36 following follow VBG 40404 27 37 former former JJ 40404 27 38 students student NNS 40404 27 39 of of IN 40404 27 40 the the DT 40404 27 41 author author NN 40404 27 42 who who WP 40404 27 43 are be VBP 40404 27 44 engaged engage VBN 40404 27 45 in in IN 40404 27 46 the the DT 40404 27 47 earth earth NN 40404 27 48 sciences science NNS 40404 27 49 : : : 40404 27 50 Dr. Dr. NNP 40404 27 51 W. W. NNP 40404 27 52 C. C. NNP 40404 27 53 Alden Alden NNP 40404 27 54 of of IN 40404 27 55 the the DT 40404 27 56 United United NNP 40404 27 57 States States NNP 40404 27 58 Geological Geological NNP 40404 27 59 Survey Survey NNP 40404 27 60 and and CC 40404 27 61 the the DT 40404 27 62 University University NNP 40404 27 63 of of IN 40404 27 64 Chicago Chicago NNP 40404 27 65 ; ; : 40404 27 66 Mr. Mr. NNP 40404 27 67 Joseph Joseph NNP 40404 27 68 Sniffen Sniffen NNP 40404 27 69 , , , 40404 27 70 instructor instructor NN 40404 27 71 in in IN 40404 27 72 the the DT 40404 27 73 Academy Academy NNP 40404 27 74 of of IN 40404 27 75 the the DT 40404 27 76 University University NNP 40404 27 77 of of IN 40404 27 78 Chicago Chicago NNP 40404 27 79 , , , 40404 27 80 Morgan Morgan NNP 40404 27 81 Park Park NNP 40404 27 82 ; ; : 40404 27 83 Professor Professor NNP 40404 27 84 Martin Martin NNP 40404 27 85 Iorns Iorns NNP 40404 27 86 , , , 40404 27 87 Fort Fort NNP 40404 27 88 Worth Worth NNP 40404 27 89 University University NNP 40404 27 90 , , , 40404 27 91 Texas Texas NNP 40404 27 92 ; ; : 40404 27 93 Professor Professor NNP 40404 27 94 A. a. NN 40404 27 95 M. M. NNP 40404 27 96 Jayne Jayne NNP 40404 27 97 , , , 40404 27 98 Dakota Dakota NNP 40404 27 99 University University NNP 40404 27 100 ; ; : 40404 27 101 Professor Professor NNP 40404 27 102 G. G. NNP 40404 27 103 H. H. NNP 40404 27 104 Bretnall Bretnall NNP 40404 27 105 , , , 40404 27 106 Monmouth Monmouth NNP 40404 27 107 College College NNP 40404 27 108 , , , 40404 27 109 Illinois Illinois NNP 40404 27 110 ; ; : 40404 27 111 Professor Professor NNP 40404 27 112 Howard Howard NNP 40404 27 113 E. E. NNP 40404 27 114 Simpson Simpson NNP 40404 27 115 , , , 40404 27 116 Colby Colby NNP 40404 27 117 College College NNP 40404 27 118 , , , 40404 27 119 Maine Maine NNP 40404 27 120 ; ; : 40404 27 121 Mr. Mr. NNP 40404 27 122 E. E. NNP 40404 27 123 J. J. NNP 40404 28 1 Cable cable NN 40404 28 2 , , , 40404 28 3 instructor instructor NN 40404 28 4 in in IN 40404 28 5 the the DT 40404 28 6 Iowa Iowa NNP 40404 28 7 State State NNP 40404 28 8 Normal Normal NNP 40404 28 9 College College NNP 40404 28 10 ; ; : 40404 28 11 Principal Principal NNP 40404 28 12 C. C. NNP 40404 28 13 C. C. NNP 40404 28 14 Gray Gray NNP 40404 28 15 of of IN 40404 28 16 the the DT 40404 28 17 High High NNP 40404 28 18 School School NNP 40404 28 19 , , , 40404 28 20 Fargo Fargo NNP 40404 28 21 , , , 40404 28 22 North North NNP 40404 28 23 Dakota Dakota NNP 40404 28 24 ; ; : 40404 28 25 and and CC 40404 28 26 Mr. Mr. NNP 40404 28 27 Charles Charles NNP 40404 28 28 Persons Persons NNP 40404 28 29 of of IN 40404 28 30 the the DT 40404 28 31 High High NNP 40404 28 32 School School NNP 40404 28 33 , , , 40404 28 34 Hannibal Hannibal NNP 40404 28 35 , , , 40404 28 36 Missouri Missouri NNP 40404 28 37 . . . 40404 29 1 A a DT 40404 29 2 large large JJ 40404 29 3 number number NN 40404 29 4 of of IN 40404 29 5 the the DT 40404 29 6 diagrams diagram NNS 40404 29 7 of of IN 40404 29 8 the the DT 40404 29 9 book book NN 40404 29 10 were be VBD 40404 29 11 drawn draw VBN 40404 29 12 by by IN 40404 29 13 Mr. Mr. NNP 40404 29 14 W. W. NNP 40404 29 15 W. W. NNP 40404 29 16 White White NNP 40404 29 17 of of IN 40404 29 18 the the DT 40404 29 19 Art Art NNP 40404 29 20 School School NNP 40404 29 21 of of IN 40404 29 22 Cornell Cornell NNP 40404 29 23 College College NNP 40404 29 24 . . . 40404 30 1 To to IN 40404 30 2 all all PDT 40404 30 3 these these DT 40404 30 4 friends friend NNS 40404 30 5 , , , 40404 30 6 and and CC 40404 30 7 to to IN 40404 30 8 the the DT 40404 30 9 many many JJ 40404 30 10 who who WP 40404 30 11 have have VBP 40404 30 12 kindly kindly RB 40404 30 13 supplied supply VBN 40404 30 14 the the DT 40404 30 15 illustrations illustration NNS 40404 30 16 of of IN 40404 30 17 the the DT 40404 30 18 text text NN 40404 30 19 , , , 40404 30 20 whose whose WP$ 40404 30 21 names name NNS 40404 30 22 are be VBP 40404 30 23 mentioned mention VBN 40404 30 24 in in IN 40404 30 25 an an DT 40404 30 26 appended append VBN 40404 30 27 list list NN 40404 30 28 , , , 40404 30 29 the the DT 40404 30 30 writer writer NN 40404 30 31 returns return VBZ 40404 30 32 his -PRON- PRP$ 40404 30 33 heartfelt heartfelt JJ 40404 30 34 thanks thank NNS 40404 30 35 . . . 40404 31 1 WILLIAM WILLIAM NNP 40404 31 2 HARMON HARMON NNP 40404 31 3 NORTON NORTON NNP 40404 31 4 Cornell Cornell NNP 40404 31 5 College College NNP 40404 31 6 , , , 40404 31 7 Mount Mount NNP 40404 31 8 Vernon Vernon NNP 40404 31 9 , , , 40404 31 10 Iowa Iowa NNP 40404 31 11 July July NNP 40404 31 12 , , , 40404 31 13 1905 1905 CD 40404 31 14 INTRODUCTORY INTRODUCTORY NNP 40404 31 15 NOTE NOTE NNP 40404 31 16 During during IN 40404 31 17 the the DT 40404 31 18 preparation preparation NN 40404 31 19 of of IN 40404 31 20 this this DT 40404 31 21 book book NN 40404 31 22 Professor Professor NNP 40404 31 23 Norton Norton NNP 40404 31 24 has have VBZ 40404 31 25 frequently frequently RB 40404 31 26 discussed discuss VBN 40404 31 27 its -PRON- PRP$ 40404 31 28 plan plan NN 40404 31 29 with with IN 40404 31 30 me -PRON- PRP 40404 31 31 by by IN 40404 31 32 correspondence correspondence NN 40404 31 33 , , , 40404 31 34 and and CC 40404 31 35 we -PRON- PRP 40404 31 36 have have VBP 40404 31 37 considered consider VBN 40404 31 38 together together RB 40404 31 39 the the DT 40404 31 40 matters matter NNS 40404 31 41 of of IN 40404 31 42 scope scope NN 40404 31 43 , , , 40404 31 44 arrangement arrangement NN 40404 31 45 , , , 40404 31 46 and and CC 40404 31 47 presentation presentation NN 40404 31 48 . . . 40404 32 1 As as IN 40404 32 2 to to IN 40404 32 3 scope scope VB 40404 32 4 , , , 40404 32 5 the the DT 40404 32 6 needs need NNS 40404 32 7 of of IN 40404 32 8 the the DT 40404 32 9 young young JJ 40404 32 10 student student NN 40404 32 11 and and CC 40404 32 12 not not RB 40404 32 13 of of IN 40404 32 14 the the DT 40404 32 15 expert expert NN 40404 32 16 have have VBP 40404 32 17 been be VBN 40404 32 18 our -PRON- PRP$ 40404 32 19 guide guide NN 40404 32 20 ; ; : 40404 32 21 the the DT 40404 32 22 book book NN 40404 32 23 is be VBZ 40404 32 24 therefore therefore RB 40404 32 25 a a DT 40404 32 26 text text NN 40404 32 27 - - HYPH 40404 32 28 book book NN 40404 32 29 , , , 40404 32 30 not not RB 40404 32 31 a a DT 40404 32 32 reference reference NN 40404 32 33 volume volume NN 40404 32 34 . . . 40404 33 1 In in IN 40404 33 2 arrangement arrangement NN 40404 33 3 , , , 40404 33 4 the the DT 40404 33 5 twofold twofold JJ 40404 33 6 division division NN 40404 33 7 of of IN 40404 33 8 the the DT 40404 33 9 subject subject NN 40404 33 10 was be VBD 40404 33 11 chosen choose VBN 40404 33 12 because because IN 40404 33 13 of of IN 40404 33 14 its -PRON- PRP$ 40404 33 15 simplicity simplicity NN 40404 33 16 and and CC 40404 33 17 effectiveness effectiveness NN 40404 33 18 . . . 40404 34 1 The the DT 40404 34 2 principles principle NNS 40404 34 3 of of IN 40404 34 4 physical physical JJ 40404 34 5 geology geology NN 40404 34 6 come come VBP 40404 34 7 first first RB 40404 34 8 ; ; : 40404 34 9 the the DT 40404 34 10 several several JJ 40404 34 11 chapters chapter NNS 40404 34 12 are be VBP 40404 34 13 arranged arrange VBN 40404 34 14 in in IN 40404 34 15 what what WP 40404 34 16 is be VBZ 40404 34 17 believed believe VBN 40404 34 18 to to TO 40404 34 19 be be VB 40404 34 20 a a DT 40404 34 21 natural natural JJ 40404 34 22 order order NN 40404 34 23 , , , 40404 34 24 appropriate appropriate JJ 40404 34 25 to to IN 40404 34 26 the the DT 40404 34 27 greatest great JJS 40404 34 28 part part NN 40404 34 29 of of IN 40404 34 30 our -PRON- PRP$ 40404 34 31 country country NN 40404 34 32 , , , 40404 34 33 so so IN 40404 34 34 that that IN 40404 34 35 from from IN 40404 34 36 a a DT 40404 34 37 simple simple JJ 40404 34 38 beginning begin VBG 40404 34 39 a a DT 40404 34 40 logical logical JJ 40404 34 41 sequence sequence NN 40404 34 42 of of IN 40404 34 43 topics topic NNS 40404 34 44 leads lead VBZ 40404 34 45 through through IN 40404 34 46 the the DT 40404 34 47 whole whole JJ 40404 34 48 subject subject NN 40404 34 49 . . . 40404 35 1 The the DT 40404 35 2 historical historical JJ 40404 35 3 view view NN 40404 35 4 of of IN 40404 35 5 the the DT 40404 35 6 science science NN 40404 35 7 comes come VBZ 40404 35 8 second second RB 40404 35 9 , , , 40404 35 10 with with IN 40404 35 11 many many JJ 40404 35 12 specific specific JJ 40404 35 13 illustrations illustration NNS 40404 35 14 of of IN 40404 35 15 the the DT 40404 35 16 physical physical JJ 40404 35 17 processes process NNS 40404 35 18 previously previously RB 40404 35 19 studied study VBD 40404 35 20 , , , 40404 35 21 but but CC 40404 35 22 now now RB 40404 35 23 set set VBN 40404 35 24 forth forth RP 40404 35 25 as as IN 40404 35 26 part part NN 40404 35 27 of of IN 40404 35 28 the the DT 40404 35 29 story story NN 40404 35 30 of of IN 40404 35 31 the the DT 40404 35 32 earth earth NN 40404 35 33 , , , 40404 35 34 with with IN 40404 35 35 its -PRON- PRP$ 40404 35 36 many many JJ 40404 35 37 changes change NNS 40404 35 38 of of IN 40404 35 39 aspect aspect NN 40404 35 40 and and CC 40404 35 41 its -PRON- PRP$ 40404 35 42 succession succession NN 40404 35 43 of of IN 40404 35 44 inhabitants inhabitant NNS 40404 35 45 . . . 40404 36 1 Special special JJ 40404 36 2 attention attention NN 40404 36 3 is be VBZ 40404 36 4 here here RB 40404 36 5 given give VBN 40404 36 6 to to IN 40404 36 7 North North NNP 40404 36 8 America America NNP 40404 36 9 , , , 40404 36 10 and and CC 40404 36 11 care care NN 40404 36 12 is be VBZ 40404 36 13 taken take VBN 40404 36 14 to to TO 40404 36 15 avoid avoid VB 40404 36 16 overloading overload VBG 40404 36 17 with with IN 40404 36 18 details detail NNS 40404 36 19 . . . 40404 37 1 With with IN 40404 37 2 respect respect NN 40404 37 3 to to IN 40404 37 4 method method NN 40404 37 5 of of IN 40404 37 6 presentation presentation NN 40404 37 7 , , , 40404 37 8 it -PRON- PRP 40404 37 9 must must MD 40404 37 10 not not RB 40404 37 11 be be VB 40404 37 12 forgotten forget VBN 40404 37 13 that that IN 40404 37 14 the the DT 40404 37 15 text text NN 40404 37 16 - - HYPH 40404 37 17 book book NN 40404 37 18 is be VBZ 40404 37 19 only only RB 40404 37 20 one one CD 40404 37 21 factor factor NN 40404 37 22 in in IN 40404 37 23 good good JJ 40404 37 24 teaching teaching NN 40404 37 25 , , , 40404 37 26 and and CC 40404 37 27 that that IN 40404 37 28 in in IN 40404 37 29 geology geology NN 40404 37 30 , , , 40404 37 31 as as IN 40404 37 32 in in IN 40404 37 33 other other JJ 40404 37 34 sciences science NNS 40404 37 35 , , , 40404 37 36 the the DT 40404 37 37 teacher teacher NN 40404 37 38 , , , 40404 37 39 the the DT 40404 37 40 laboratory laboratory NN 40404 37 41 , , , 40404 37 42 and and CC 40404 37 43 the the DT 40404 37 44 local local JJ 40404 37 45 field field NN 40404 37 46 are be VBP 40404 37 47 other other JJ 40404 37 48 factors factor NNS 40404 37 49 , , , 40404 37 50 each each DT 40404 37 51 of of IN 40404 37 52 which which WDT 40404 37 53 should should MD 40404 37 54 play play VB 40404 37 55 an an DT 40404 37 56 appropriate appropriate JJ 40404 37 57 part part NN 40404 37 58 . . . 40404 38 1 The the DT 40404 38 2 text text NN 40404 38 3 suggests suggest VBZ 40404 38 4 observational observational JJ 40404 38 5 methods method NNS 40404 38 6 , , , 40404 38 7 but but CC 40404 38 8 it -PRON- PRP 40404 38 9 can can MD 40404 38 10 not not RB 40404 38 11 replace replace VB 40404 38 12 observation observation NN 40404 38 13 in in IN 40404 38 14 field field NN 40404 38 15 or or CC 40404 38 16 laboratory laboratory NN 40404 38 17 ; ; : 40404 38 18 it -PRON- PRP 40404 38 19 offers offer VBZ 40404 38 20 certain certain JJ 40404 38 21 exercises exercise NNS 40404 38 22 , , , 40404 38 23 but but CC 40404 38 24 space space NN 40404 38 25 can can MD 40404 38 26 not not RB 40404 38 27 be be VB 40404 38 28 taken take VBN 40404 38 29 to to TO 40404 38 30 make make VB 40404 38 31 it -PRON- PRP 40404 38 32 a a DT 40404 38 33 laboratory laboratory NN 40404 38 34 manual manual NN 40404 38 35 as as RB 40404 38 36 well well RB 40404 38 37 as as IN 40404 38 38 a a DT 40404 38 39 book book NN 40404 38 40 for for IN 40404 38 41 study study NN 40404 38 42 ; ; : 40404 38 43 it -PRON- PRP 40404 38 44 explains explain VBZ 40404 38 45 many many JJ 40404 38 46 problems problem NNS 40404 38 47 , , , 40404 38 48 but but CC 40404 38 49 its -PRON- PRP$ 40404 38 50 statements statement NNS 40404 38 51 are be VBP 40404 38 52 necessarily necessarily RB 40404 38 53 more more RBR 40404 38 54 terse terse JJ 40404 38 55 than than IN 40404 38 56 the the DT 40404 38 57 illustrative illustrative JJ 40404 38 58 descriptions description NNS 40404 38 59 that that WDT 40404 38 60 a a DT 40404 38 61 good good JJ 40404 38 62 and and CC 40404 38 63 experienced experienced JJ 40404 38 64 teacher teacher NN 40404 38 65 should should MD 40404 38 66 supply supply VB 40404 38 67 . . . 40404 39 1 Frequent frequent JJ 40404 39 2 use use NN 40404 39 3 is be VBZ 40404 39 4 made make VBN 40404 39 5 of of IN 40404 39 6 induction induction NN 40404 39 7 and and CC 40404 39 8 inference inference NN 40404 39 9 in in IN 40404 39 10 order order NN 40404 39 11 that that IN 40404 39 12 the the DT 40404 39 13 student student NN 40404 39 14 may may MD 40404 39 15 come come VB 40404 39 16 to to TO 40404 39 17 see see VB 40404 39 18 how how WRB 40404 39 19 reasonable reasonable JJ 40404 39 20 a a DT 40404 39 21 science science NN 40404 39 22 is be VBZ 40404 39 23 geology geology NN 40404 39 24 , , , 40404 39 25 and and CC 40404 39 26 that that IN 40404 39 27 he -PRON- PRP 40404 39 28 may may MD 40404 39 29 avoid avoid VB 40404 39 30 the the DT 40404 39 31 too too RB 40404 39 32 common common JJ 40404 39 33 error error NN 40404 39 34 of of IN 40404 39 35 thinking thinking NN 40404 39 36 that that IN 40404 39 37 the the DT 40404 39 38 opinions opinion NNS 40404 39 39 of of IN 40404 39 40 " " `` 40404 39 41 authorities authority NNS 40404 39 42 " " '' 40404 39 43 are be VBP 40404 39 44 reached reach VBN 40404 39 45 by by IN 40404 39 46 a a DT 40404 39 47 private private JJ 40404 39 48 road road NN 40404 39 49 that that WDT 40404 39 50 is be VBZ 40404 39 51 closed closed JJ 40404 39 52 to to IN 40404 39 53 him -PRON- PRP 40404 39 54 . . . 40404 40 1 The the DT 40404 40 2 further further JJ 40404 40 3 extension extension NN 40404 40 4 of of IN 40404 40 5 this this DT 40404 40 6 method method NN 40404 40 7 of of IN 40404 40 8 presentation presentation NN 40404 40 9 is be VBZ 40404 40 10 urged urge VBN 40404 40 11 upon upon IN 40404 40 12 the the DT 40404 40 13 teacher teacher NN 40404 40 14 , , , 40404 40 15 so so IN 40404 40 16 that that IN 40404 40 17 the the DT 40404 40 18 young young JJ 40404 40 19 geologist geologist NN 40404 40 20 may may MD 40404 40 21 always always RB 40404 40 22 learn learn VB 40404 40 23 the the DT 40404 40 24 evidence evidence NN 40404 40 25 that that WDT 40404 40 26 leads lead VBZ 40404 40 27 to to IN 40404 40 28 a a DT 40404 40 29 conclusion conclusion NN 40404 40 30 , , , 40404 40 31 and and CC 40404 40 32 not not RB 40404 40 33 only only RB 40404 40 34 the the DT 40404 40 35 conclusion conclusion NN 40404 40 36 itself -PRON- PRP 40404 40 37 . . . 40404 41 1 W. W. NNP 40404 41 2 M. M. NNP 40404 41 3 DAVIS DAVIS NNP 40404 41 4 Harvard Harvard NNP 40404 41 5 University University NNP 40404 41 6 , , , 40404 41 7 Cambridge Cambridge NNP 40404 41 8 , , , 40404 41 9 Mass. Massachusetts NNP 40404 42 1 July July NNP 40404 42 2 , , , 40404 42 3 1905 1905 CD 40404 42 4 ACKNOWLEDGMENT acknowledgment DT 40404 42 5 OF of IN 40404 42 6 ILLUSTRATIONS ILLUSTRATIONS NNP 40404 42 7 Adams Adams NNP 40404 42 8 , , , 40404 42 9 Professor Professor NNP 40404 42 10 F. F. NNP 40404 42 11 D. D. NNP 40404 42 12 , , , 40404 42 13 McGill McGill NNP 40404 42 14 University University NNP 40404 42 15 , , , 40404 42 16 Canada Canada NNP 40404 42 17 , , , 40404 42 18 241 241 CD 40404 42 19 . . . 40404 43 1 Alden Alden NNP 40404 43 2 , , , 40404 43 3 Dr. Dr. NNP 40404 43 4 W. W. NNP 40404 43 5 C. C. NNP 40404 43 6 , , , 40404 43 7 Washington Washington NNP 40404 43 8 , , , 40404 43 9 D.C. D.C. NNP 40404 43 10 , , , 40404 43 11 353 353 CD 40404 43 12 . . . 40404 44 1 American American NNP 40404 44 2 Museum Museum NNP 40404 44 3 of of IN 40404 44 4 Natural Natural NNP 40404 44 5 History History NNP 40404 44 6 , , , 40404 44 7 New New NNP 40404 44 8 York York NNP 40404 44 9 , , , 40404 44 10 344 344 CD 40404 44 11 . . . 40404 45 1 Ash Ash NNP 40404 45 2 , , , 40404 45 3 H. H. NNP 40404 45 4 C. C. NNP 40404 45 5 , , , 40404 45 6 Galesburg Galesburg NNP 40404 45 7 , , , 40404 45 8 Ill. Illinois NNP 40404 45 9 , , , 40404 45 10 133 133 CD 40404 45 11 . . . 40404 46 1 Beyer Beyer NNP 40404 46 2 , , , 40404 46 3 Dr. Dr. NNP 40404 46 4 S. S. NNP 40404 46 5 W. W. NNP 40404 46 6 , , , 40404 46 7 Iowa Iowa NNP 40404 46 8 College College NNP 40404 46 9 of of IN 40404 46 10 Agriculture Agriculture NNP 40404 46 11 , , , 40404 46 12 363 363 CD 40404 46 13 . . . 40404 47 1 Calvin Calvin NNP 40404 47 2 , , , 40404 47 3 Dr. Dr. NNP 40404 47 4 Samuel Samuel NNP 40404 47 5 , , , 40404 47 6 Iowa Iowa NNP 40404 47 7 State State NNP 40404 47 8 University University NNP 40404 47 9 , , , 40404 47 10 45 45 CD 40404 47 11 , , , 40404 47 12 295 295 CD 40404 47 13 , , , 40404 47 14 317 317 CD 40404 47 15 , , , 40404 47 16 325 325 CD 40404 47 17 , , , 40404 47 18 371 371 CD 40404 47 19 . . . 40404 48 1 Carney Carney NNP 40404 48 2 , , , 40404 48 3 Frank Frank NNP 40404 48 4 , , , 40404 48 5 Ithaca Ithaca NNP 40404 48 6 , , , 40404 48 7 N.Y. New York NNP 40404 48 8 , , , 40404 48 9 356 356 CD 40404 48 10 . . . 40404 49 1 Clark Clark NNP 40404 49 2 , , , 40404 49 3 Dr. Dr. NNP 40404 49 4 Wm Wm NNP 40404 49 5 . . . 40404 50 1 B. B. NNP 40404 50 2 , , , 40404 50 3 Maryland Maryland NNP 40404 50 4 Geological Geological NNP 40404 50 5 Survey Survey NNP 40404 50 6 , , , 40404 50 7 43 43 CD 40404 50 8 . . . 40404 51 1 Borne Borne NNP 40404 51 2 , , , 40404 51 3 Dr. Dr. NNP 40404 51 4 Georg Georg NNP 40404 51 5 v. v. IN 40404 51 6 d. d. NNP 40404 51 7 , , , 40404 51 8 Jena Jena NNP 40404 51 9 , , , 40404 51 10 Germany Germany NNP 40404 51 11 , , , 40404 51 12 5 5 CD 40404 51 13 , , , 40404 51 14 6 6 CD 40404 51 15 . . . 40404 52 1 Daly Daly NNP 40404 52 2 , , , 40404 52 3 Dr. Dr. NNP 40404 52 4 R. R. NNP 40404 52 5 A. A. NNP 40404 52 6 , , , 40404 52 7 Ottawa Ottawa NNP 40404 52 8 , , , 40404 52 9 Canada Canada NNP 40404 52 10 , , , 40404 52 11 164 164 CD 40404 52 12 . . . 40404 53 1 Defieux Defieux NNP 40404 53 2 , , , 40404 53 3 C. C. NNP 40404 53 4 A. A. NNP 40404 53 5 , , , 40404 53 6 Liverpool Liverpool NNP 40404 53 7 , , , 40404 53 8 England England NNP 40404 53 9 , , , 40404 53 10 154 154 CD 40404 53 11 . . . 40404 54 1 * * NFP 40404 54 2 Detroit Detroit NNP 40404 54 3 Photographic Photographic NNP 40404 54 4 Co. Co. NNP 40404 54 5 , , , 40404 54 6 235 235 CD 40404 54 7 , , , 40404 54 8 236 236 CD 40404 54 9 . . . 40404 55 1 * * NFP 40404 55 2 Ellis Ellis NNP 40404 55 3 , , , 40404 55 4 W. W. NNP 40404 55 5 M. M. NNP 40404 55 6 , , , 40404 55 7 Edna Edna NNP 40404 55 8 , , , 40404 55 9 Kan. Kansas NNP 40404 55 10 , , , 40404 55 11 13 13 CD 40404 55 12 . . . 40404 56 1 Fairchild Fairchild NNP 40404 56 2 , , , 40404 56 3 Professor Professor NNP 40404 56 4 H. H. NNP 40404 56 5 L. L. NNP 40404 56 6 , , , 40404 56 7 University University NNP 40404 56 8 of of IN 40404 56 9 Rochester Rochester NNP 40404 56 10 , , , 40404 56 11 141 141 CD 40404 56 12 , , , 40404 56 13 357 357 CD 40404 56 14 . . . 40404 57 1 Field Field NNP 40404 57 2 Columbian Columbian NNP 40404 57 3 Museum Museum NNP 40404 57 4 , , , 40404 57 5 Chicago Chicago NNP 40404 57 6 , , , 40404 57 7 87 87 CD 40404 57 8 . . . 40404 58 1 Forster Forster NNP 40404 58 2 , , , 40404 58 3 Dr. Dr. NNP 40404 58 4 A. A. NNP 40404 58 5 E. E. NNP 40404 58 6 , , , 40404 58 7 University University NNP 40404 58 8 of of IN 40404 58 9 Vienna Vienna NNP 40404 58 10 , , , 40404 58 11 32 32 CD 40404 58 12 . . . 40404 59 1 Gardner Gardner NNP 40404 59 2 , , , 40404 59 3 J. J. NNP 40404 59 4 L. L. NNP 40404 59 5 , , , 40404 59 6 Boston Boston NNP 40404 59 7 , , , 40404 59 8 12 12 CD 40404 59 9 , , , 40404 59 10 140 140 CD 40404 59 11 , , , 40404 59 12 352 352 CD 40404 59 13 . . . 40404 60 1 Geological Geological NNP 40404 60 2 Survey Survey NNP 40404 60 3 of of IN 40404 60 4 Canada Canada NNP 40404 60 5 , , , 40404 60 6 256 256 CD 40404 60 7 . . . 40404 61 1 Gilbert Gilbert NNP 40404 61 2 , , , 40404 61 3 Dr. Dr. NNP 40404 61 4 G. G. NNP 40404 61 5 K. K. NNP 40404 61 6 , , , 40404 61 7 by by IN 40404 61 8 courtesy courtesy NN 40404 61 9 of of IN 40404 61 10 the the DT 40404 61 11 American American NNP 40404 61 12 Book Book NNP 40404 61 13 Company Company NNP 40404 61 14 , , , 40404 61 15 39 39 CD 40404 61 16 . . . 40404 62 1 * * NFP 40404 62 2 Haines Haines NNP 40404 62 3 , , , 40404 62 4 Ben Ben NNP 40404 62 5 , , , 40404 62 6 New New NNP 40404 62 7 Albany Albany NNP 40404 62 8 , , , 40404 62 9 Ind. Indiana NNP 40404 62 10 , , , 40404 62 11 33 33 CD 40404 62 12 . . . 40404 63 1 * * NFP 40404 63 2 Haynes Haynes NNP 40404 63 3 , , , 40404 63 4 F. F. NNP 40404 63 5 J. J. NNP 40404 63 6 , , , 40404 63 7 St. St. NNP 40404 63 8 Paul Paul NNP 40404 63 9 , , , 40404 63 10 Minn. Minnesota NNP 40404 63 11 , , , 40404 63 12 52 52 CD 40404 63 13 , , , 40404 63 14 95 95 CD 40404 63 15 , , , 40404 63 16 233 233 CD 40404 63 17 . . . 40404 64 1 Henderson Henderson NNP 40404 64 2 , , , 40404 64 3 Judge Judge NNP 40404 64 4 Julius Julius NNP 40404 64 5 , , , 40404 64 6 Boulder Boulder NNP 40404 64 7 , , , 40404 64 8 Col Col NNP 40404 64 9 . . NNP 40404 64 10 , , , 40404 64 11 94 94 CD 40404 64 12 . . . 40404 65 1 James James NNP 40404 65 2 , , , 40404 65 3 George George NNP 40404 65 4 Wharton Wharton NNP 40404 65 5 , , , 40404 65 6 Pasadena Pasadena NNP 40404 65 7 , , , 40404 65 8 Cal Cal NNP 40404 65 9 . . NNP 40404 65 10 , , , 40404 65 11 16 16 CD 40404 65 12 , , , 40404 65 13 127 127 CD 40404 65 14 , , , 40404 65 15 215 215 CD 40404 65 16 , , , 40404 65 17 229 229 CD 40404 65 18 . . . 40404 66 1 Johnston Johnston NNP 40404 66 2 - - HYPH 40404 66 3 Lavis Lavis NNP 40404 66 4 , , , 40404 66 5 Professor Professor NNP 40404 66 6 H. H. NNP 40404 66 7 J. J. NNP 40404 66 8 , , , 40404 66 9 Beaulieu Beaulieu NNP 40404 66 10 , , , 40404 66 11 France France NNP 40404 66 12 , , , 40404 66 13 216 216 CD 40404 66 14 . . . 40404 67 1 King King NNP 40404 67 2 , , , 40404 67 3 J. J. NNP 40404 67 4 Harding Harding NNP 40404 67 5 , , , 40404 67 6 Stourbridge Stourbridge NNP 40404 67 7 , , , 40404 67 8 England England NNP 40404 67 9 , , , 40404 67 10 119 119 CD 40404 67 11 . . . 40404 68 1 Lawson Lawson NNP 40404 68 2 , , , 40404 68 3 Dr. Dr. NNP 40404 68 4 Andrew Andrew NNP 40404 68 5 C. C. NNP 40404 68 6 , , , 40404 68 7 University University NNP 40404 68 8 of of IN 40404 68 9 California California NNP 40404 68 10 , , , 40404 68 11 113 113 CD 40404 68 12 . . . 40404 69 1 Le Le NNP 40404 69 2 Conte Conte NNP 40404 69 3 , , , 40404 69 4 Professor Professor NNP 40404 69 5 J. J. NNP 40404 69 6 N. N. NNP 40404 69 7 , , , 40404 69 8 University University NNP 40404 69 9 of of IN 40404 69 10 California California NNP 40404 69 11 , , , 40404 69 12 8 8 CD 40404 69 13 . . . 40404 70 1 Libbey Libbey NNP 40404 70 2 , , , 40404 70 3 Dr. Dr. NNP 40404 70 4 William William NNP 40404 70 5 , , , 40404 70 6 Princeton Princeton NNP 40404 70 7 University University NNP 40404 70 8 , , , 40404 70 9 92 92 CD 40404 70 10 . . . 40404 71 1 * * NFP 40404 71 2 McAllister McAllister NNP 40404 71 3 , , , 40404 71 4 T. T. NNP 40404 71 5 H. H. NNP 40404 71 6 , , , 40404 71 7 New New NNP 40404 71 8 York York NNP 40404 71 9 , , , 40404 71 10 242 242 CD 40404 71 11 . . . 40404 72 1 * * NFP 40404 72 2 Meyers Meyers NNP 40404 72 3 , , , 40404 72 4 H. H. NNP 40404 72 5 C. C. NNP 40404 72 6 , , , 40404 72 7 Boise Boise NNP 40404 72 8 , , , 40404 72 9 Id. Idaho NNP 40404 72 10 , , , 40404 72 11 19 19 CD 40404 72 12 . . . 40404 73 1 Mills Mills NNP 40404 73 2 , , , 40404 73 3 Professor Professor NNP 40404 73 4 H. H. NNP 40404 73 5 A. A. NNP 40404 73 6 , , , 40404 73 7 Cornell Cornell NNP 40404 73 8 College College NNP 40404 73 9 , , , 40404 73 10 208 208 CD 40404 73 11 , , , 40404 73 12 304 304 CD 40404 73 13 . . . 40404 74 1 Norton Norton NNP 40404 74 2 , , , 40404 74 3 Professor Professor NNP 40404 74 4 W. W. NNP 40404 74 5 H. H. NNP 40404 74 6 , , , 40404 74 7 Cornell Cornell NNP 40404 74 8 College College NNP 40404 74 9 , , , 40404 74 10 14 14 CD 40404 74 11 , , , 40404 74 12 35 35 CD 40404 74 13 , , , 40404 74 14 59 59 CD 40404 74 15 , , , 40404 74 16 88 88 CD 40404 74 17 , , , 40404 74 18 128 128 CD 40404 74 19 , , , 40404 74 20 183 183 CD 40404 74 21 , , , 40404 74 22 226 226 CD 40404 74 23 , , , 40404 74 24 234 234 CD 40404 74 25 , , , 40404 74 26 255 255 CD 40404 74 27 , , , 40404 74 28 340 340 CD 40404 74 29 , , , 40404 74 30 364 364 CD 40404 74 31 , , , 40404 74 32 367 367 CD 40404 74 33 . . . 40404 75 1 * * NFP 40404 75 2 Notman Notman NNP 40404 75 3 , , , 40404 75 4 Wm Wm NNP 40404 75 5 . . . 40404 76 1 & & CC 40404 76 2 Son Son NNP 40404 76 3 , , , 40404 76 4 Montreal Montreal NNP 40404 76 5 , , , 40404 76 6 Canada Canada NNP 40404 76 7 , , , 40404 76 8 98 98 CD 40404 76 9 , , , 40404 76 10 181 181 CD 40404 76 11 . . . 40404 77 1 Obrutschew Obrutschew NNP 40404 77 2 , , , 40404 77 3 Dr. Dr. NNP 40404 77 4 W. W. NNP 40404 77 5 , , , 40404 77 6 Tomsk Tomsk NNP 40404 77 7 Technological Technological NNP 40404 77 8 Institute Institute NNP 40404 77 9 , , , 40404 77 10 Siberia Siberia NNP 40404 77 11 , , , 40404 77 12 73 73 CD 40404 77 13 . . . 40404 78 1 Oldham Oldham NNP 40404 78 2 , , , 40404 78 3 Dr. Dr. NNP 40404 78 4 R. R. NNP 40404 78 5 D. D. NNP 40404 78 6 , , , 40404 78 7 Geological Geological NNP 40404 78 8 Survey Survey NNP 40404 78 9 of of IN 40404 78 10 India India NNP 40404 78 11 , , , 40404 78 12 120 120 CD 40404 78 13 . . . 40404 79 1 * * NFP 40404 79 2 Peabody Peabody NNP 40404 79 3 , , , 40404 79 4 H. H. NNP 40404 79 5 C. C. NNP 40404 79 6 , , , 40404 79 7 Pasadena Pasadena NNP 40404 79 8 , , , 40404 79 9 Cal Cal NNP 40404 79 10 . . NNP 40404 79 11 , , , 40404 79 12 54 54 CD 40404 79 13 . . . 40404 80 1 * * NFP 40404 80 2 Pierce Pierce NNP 40404 80 3 , , , 40404 80 4 C. C. NNP 40404 80 5 C. C. NNP 40404 80 6 & & CC 40404 80 7 Co. Co. NNP 40404 80 8 , , , 40404 80 9 Los Los NNP 40404 80 10 Angeles Angeles NNP 40404 80 11 , , , 40404 80 12 Cal Cal NNP 40404 80 13 . . NNP 40404 80 14 , , , 40404 80 15 15 15 CD 40404 80 16 . . . 40404 81 1 Pillsbury Pillsbury NNP 40404 81 2 , , , 40404 81 3 Arthur Arthur NNP 40404 81 4 , , , 40404 81 5 San San NNP 40404 81 6 Francisco Francisco NNP 40404 81 7 , , , 40404 81 8 Cal Cal NNP 40404 81 9 . . NNP 40404 81 10 , , , 40404 81 11 .115 .115 CD 40404 81 12 . . . 40404 82 1 * * NFP 40404 82 2 Rau Rau NNP 40404 82 3 , , , 40404 82 4 Wm Wm NNP 40404 82 5 . . NNP 40404 82 6 , , , 40404 82 7 Philadelphia Philadelphia NNP 40404 82 8 , , , 40404 82 9 18 18 CD 40404 82 10 , , , 40404 82 11 21 21 CD 40404 82 12 , , , 40404 82 13 122 122 CD 40404 82 14 , , , 40404 82 15 123 123 CD 40404 82 16 , , , 40404 82 17 218 218 CD 40404 82 18 . . . 40404 83 1 Reusch Reusch NNP 40404 83 2 , , , 40404 83 3 Dr. Dr. NNP 40404 83 4 Hans Hans NNP 40404 83 5 , , , 40404 83 6 Geological Geological NNP 40404 83 7 Survey Survey NNP 40404 83 8 of of IN 40404 83 9 Norway Norway NNP 40404 83 10 , , , 40404 83 11 112 112 CD 40404 83 12 . . . 40404 84 1 Reynolds Reynolds NNP 40404 84 2 , , , 40404 84 3 Professor Professor NNP 40404 84 4 S. S. NNP 40404 84 5 H. H. NNP 40404 84 6 , , , 40404 84 7 University University NNP 40404 84 8 College College NNP 40404 84 9 , , , 40404 84 10 Bristol Bristol NNP 40404 84 11 , , , 40404 84 12 England England NNP 40404 84 13 , , , 40404 84 14 202 202 CD 40404 84 15 . . . 40404 85 1 Ricker Ricker NNP 40404 85 2 , , , 40404 85 3 Principal Principal NNP 40404 85 4 Maurice Maurice NNP 40404 85 5 , , , 40404 85 6 Burlington Burlington NNP 40404 85 7 , , , 40404 85 8 Iowa Iowa NNP 40404 85 9 , , , 40404 85 10 48 48 CD 40404 85 11 , , , 40404 85 12 89 89 CD 40404 85 13 . . . 40404 86 1 * * NFP 40404 86 2 Shepard shepard RB 40404 86 3 , , , 40404 86 4 E. E. NNP 40404 86 5 A. A. NNP 40404 86 6 , , , 40404 86 7 Minneapolis Minneapolis NNP 40404 86 8 , , , 40404 86 9 Minn. Minnesota NNP 40404 86 10 , , , 40404 86 11 105 105 CD 40404 86 12 . . . 40404 87 1 Smith Smith NNP 40404 87 2 , , , 40404 87 3 W. W. NNP 40404 87 4 S. S. NNP 40404 87 5 Tangier Tangier NNP 40404 87 6 , , , 40404 87 7 Los Los NNP 40404 87 8 Gatos Gatos NNP 40404 87 9 , , , 40404 87 10 Cal Cal NNP 40404 87 11 . . NNP 40404 87 12 , , , 40404 87 13 186 186 CD 40404 87 14 . . . 40404 88 1 * * NFP 40404 88 2 Soule Soule NNP 40404 88 3 Photographic Photographic NNP 40404 88 4 Co. Co. NNP 40404 88 5 , , , 40404 88 6 Boston Boston NNP 40404 88 7 , , , 40404 88 8 131 131 CD 40404 88 9 . . . 40404 89 1 U. U. NNP 40404 89 2 S. S. NNP 40404 89 3 Geological Geological NNP 40404 89 4 Survey Survey NNP 40404 89 5 , , , 40404 89 6 3 3 CD 40404 89 7 , , , 40404 89 8 4 4 CD 40404 89 9 , , , 40404 89 10 23 23 CD 40404 89 11 , , , 40404 89 12 25 25 CD 40404 89 13 , , , 40404 89 14 34 34 CD 40404 89 15 , , , 40404 89 16 41 41 CD 40404 89 17 , , , 40404 89 18 63 63 CD 40404 89 19 , , , 40404 89 20 69 69 CD 40404 89 21 , , , 40404 89 22 78 78 CD 40404 89 23 , , , 40404 89 24 79 79 CD 40404 89 25 , , , 40404 89 26 80 80 CD 40404 89 27 , , , 40404 89 28 110 110 CD 40404 89 29 , , , 40404 89 30 111 111 CD 40404 89 31 , , , 40404 89 32 114 114 CD 40404 89 33 , , , 40404 89 34 125 125 CD 40404 89 35 , , , 40404 89 36 126 126 CD 40404 89 37 , , , 40404 89 38 129 129 CD 40404 89 39 , , , 40404 89 40 130 130 CD 40404 89 41 , , , 40404 89 42 142 142 CD 40404 89 43 , , , 40404 89 44 151 151 CD 40404 89 45 , , , 40404 89 46 153 153 CD 40404 89 47 , , , 40404 89 48 169 169 CD 40404 89 49 , , , 40404 89 50 172,177 172,177 CD 40404 89 51 , , , 40404 89 52 178 178 CD 40404 89 53 , , , 40404 89 54 188 188 CD 40404 89 55 , , , 40404 89 56 211 211 CD 40404 89 57 , , , 40404 89 58 212 212 CD 40404 89 59 , , , 40404 89 60 214 214 CD 40404 89 61 , , , 40404 89 62 228 228 CD 40404 89 63 , , , 40404 89 64 237 237 CD 40404 89 65 , , , 40404 89 66 238 238 CD 40404 89 67 , , , 40404 89 68 239 239 CD 40404 89 69 , , , 40404 89 70 243 243 CD 40404 89 71 , , , 40404 89 72 244 244 CD 40404 89 73 , , , 40404 89 74 254 254 CD 40404 89 75 , , , 40404 89 76 257 257 CD 40404 89 77 , , , 40404 89 78 340 340 CD 40404 89 79 , , , 40404 89 80 341 341 CD 40404 89 81 , , , 40404 89 82 353 353 CD 40404 89 83 , , , 40404 89 84 355 355 CD 40404 89 85 . . . 40404 90 1 U. U. NNP 40404 90 2 S. S. NNP 40404 90 3 National National NNP 40404 90 4 Museum Museum NNP 40404 90 5 , , , 40404 90 6 149 149 CD 40404 90 7 , , , 40404 90 8 220 220 CD 40404 90 9 , , , 40404 90 10 221 221 CD 40404 90 11 , , , 40404 90 12 222 222 CD 40404 90 13 , , , 40404 90 14 225 225 CD 40404 90 15 , , , 40404 90 16 332 332 CD 40404 90 17 . . . 40404 91 1 * * NFP 40404 91 2 Valentine Valentine NNP 40404 91 3 & & CC 40404 91 4 Sons Sons NNPS 40404 91 5 , , , 40404 91 6 Dundee Dundee NNP 40404 91 7 , , , 40404 91 8 Scotland Scotland NNP 40404 91 9 , , , 40404 91 10 40 40 CD 40404 91 11 , , , 40404 91 12 136 136 CD 40404 91 13 , , , 40404 91 14 227 227 CD 40404 91 15 . . . 40404 92 1 Vroman Vroman NNP 40404 92 2 , , , 40404 92 3 A. A. NNP 40404 92 4 C. C. NNP 40404 92 5 , , , 40404 92 6 Pasadena Pasadena NNP 40404 92 7 , , , 40404 92 8 Cal Cal NNP 40404 92 9 . . NNP 40404 92 10 , , , 40404 92 11 17 17 CD 40404 92 12 . . . 40404 93 1 * * NFP 40404 93 2 Ward Ward NNP 40404 93 3 's 's POS 40404 93 4 Natural Natural NNP 40404 93 5 Science Science NNP 40404 93 6 Establishment Establishment NNP 40404 93 7 , , , 40404 93 8 Rochester Rochester NNP 40404 93 9 , , , 40404 93 10 N.Y. New York NNP 40404 93 11 , , , 40404 93 12 152 152 CD 40404 93 13 . . . 40404 94 1 * * NFP 40404 94 2 Welch Welch NNP 40404 94 3 , , , 40404 94 4 R. R. NNP 40404 94 5 , , , 40404 94 6 Belfast Belfast NNP 40404 94 7 , , , 40404 94 8 Ireland Ireland NNP 40404 94 9 , , , 40404 94 10 1 1 CD 40404 94 11 , , , 40404 94 12 37 37 CD 40404 94 13 . . . 40404 95 1 * * NFP 40404 95 2 Westgate Westgate NNP 40404 95 3 , , , 40404 95 4 Dr. Dr. NNP 40404 95 5 L. L. NNP 40404 95 6 G. G. NNP 40404 95 7 , , , 40404 95 8 Ohio Ohio NNP 40404 95 9 Wesleyan Wesleyan NNP 40404 95 10 University University NNP 40404 95 11 , , , 40404 95 12 66 66 CD 40404 95 13 . . . 40404 96 1 Whymper Whymper NNP 40404 96 2 , , , 40404 96 3 Edward Edward NNP 40404 96 4 , , , 40404 96 5 London London NNP 40404 96 6 , , , 40404 96 7 England England NNP 40404 96 8 , , , 40404 96 9 106 106 CD 40404 96 10 . . . 40404 97 1 * * NFP 40404 97 2 Wilcox Wilcox NNP 40404 97 3 , , , 40404 97 4 W. W. NNP 40404 97 5 D. D. NNP 40404 97 6 , , , 40404 97 7 Washington Washington NNP 40404 97 8 , , , 40404 97 9 D.C. D.C. NNP 40404 97 10 , , , 40404 97 11 20 20 CD 40404 97 12 . . . 40404 98 1 * * NFP 40404 98 2 Wilson Wilson NNP 40404 98 3 , , , 40404 98 4 Dr. Dr. NNP 40404 98 5 A. A. NNP 40404 98 6 W. W. NNP 40404 98 7 G. G. NNP 40404 98 8 , , , 40404 98 9 McGill McGill NNP 40404 98 10 University University NNP 40404 98 11 , , , 40404 98 12 Canada Canada NNP 40404 98 13 , , , 40404 98 14 68 68 CD 40404 98 15 . . . 40404 99 1 * * NFP 40404 99 2 Wilson Wilson NNP 40404 99 3 , , , 40404 99 4 G. G. NNP 40404 99 5 W. W. NNP 40404 99 6 , , , 40404 99 7 & & CC 40404 99 8 Co. Co. NNP 40404 99 9 , , , 40404 99 10 Aberdeen Aberdeen NNP 40404 99 11 , , , 40404 99 12 Scotland Scotland NNP 40404 99 13 , , , 40404 99 14 82 82 CD 40404 99 15 , , , 40404 99 16 213 213 CD 40404 99 17 . . . 40404 100 1 * * NFP 40404 100 2 Worsley Worsley NNP 40404 100 3 - - HYPH 40404 100 4 Benison Benison NNP 40404 100 5 , , , 40404 100 6 F. F. NNP 40404 100 7 H. H. NNP 40404 100 8 , , , 40404 100 9 Cheapstow Cheapstow NNP 40404 100 10 , , , 40404 100 11 England England NNP 40404 100 12 , , , 40404 100 13 170 170 CD 40404 100 14 . . . 40404 101 1 * * NFP 40404 101 2 Dealer dealer NN 40404 101 3 in in IN 40404 101 4 photographs photograph NNS 40404 101 5 or or CC 40404 101 6 lantern lantern JJ 40404 101 7 slides slide NNS 40404 101 8 . . . 40404 102 1 CONTENTS content NNS 40404 102 2 Page page NN 40404 102 3 Introduction.--The introduction.--the JJ 40404 102 4 Scope scope NN 40404 102 5 And and CC 40404 102 6 Aim Aim NNP 40404 102 7 Of of IN 40404 102 8 Geology geology NN 40404 102 9 1 1 CD 40404 102 10 PART part NN 40404 102 11 I -PRON- PRP 40404 102 12 EXTERNAL external VBP 40404 102 13 GEOLOGICAL geological NN 40404 102 14 AGENCIES agency NNS 40404 102 15 Chapter chapter NN 40404 102 16 I. i. NN 40404 103 1 The the DT 40404 103 2 Work work NN 40404 103 3 Of of IN 40404 103 4 The the DT 40404 103 5 Weather Weather NNP 40404 103 6 5 5 CD 40404 103 7 II ii CD 40404 103 8 . . . 40404 104 1 The the DT 40404 104 2 Work work NN 40404 104 3 Of of IN 40404 104 4 Ground Ground NNP 40404 104 5 Water Water NNP 40404 104 6 39 39 CD 40404 104 7 III iii CD 40404 104 8 . . . 40404 105 1 Rivers Rivers NNPS 40404 105 2 And and CC 40404 105 3 Valleys Valleys NNP 40404 105 4 54 54 CD 40404 105 5 IV IV NNP 40404 105 6 . . . 40404 106 1 River river NN 40404 106 2 Deposits deposit VBZ 40404 106 3 93 93 CD 40404 106 4 V. v. NN 40404 106 5 The the DT 40404 106 6 Work Work NNP 40404 106 7 Of of IN 40404 106 8 Glaciers glacier NNS 40404 106 9 113 113 CD 40404 106 10 VI VI NNP 40404 106 11 . . . 40404 107 1 The the DT 40404 107 2 Work work NN 40404 107 3 Of of IN 40404 107 4 The the DT 40404 107 5 Wind Wind NNP 40404 107 6 144 144 CD 40404 107 7 VII vii NN 40404 107 8 . . . 40404 108 1 The the DT 40404 108 2 Sea Sea NNP 40404 108 3 And and CC 40404 108 4 Its -PRON- PRP$ 40404 108 5 Shores shore NNS 40404 108 6 155 155 CD 40404 108 7 VIII VIII NNS 40404 108 8 . . . 40404 109 1 Offshore Offshore NNP 40404 109 2 And and CC 40404 109 3 Deep deep JJ 40404 109 4 - - HYPH 40404 109 5 Sea Sea NNP 40404 109 6 Deposits deposit VBZ 40404 109 7 174 174 CD 40404 109 8 PART part CD 40404 109 9 II ii CD 40404 109 10 INTERNAL INTERNAL NNP 40404 109 11 GEOLOGICAL geological NN 40404 109 12 AGENCIES agency NNS 40404 109 13 IX ix NN 40404 109 14 . . . 40404 110 1 Movements movement NNS 40404 110 2 Of of IN 40404 110 3 The the DT 40404 110 4 Earth Earth NNP 40404 110 5 's 's POS 40404 110 6 Crust Crust NNP 40404 110 7 195 195 CD 40404 110 8 X. X. NNP 40404 110 9 Earthquakes Earthquakes NNP 40404 110 10 233 233 CD 40404 110 11 XI XI NNP 40404 110 12 . . . 40404 111 1 Volcanoes volcano NNS 40404 111 2 238 238 CD 40404 111 3 XII xii NN 40404 111 4 . . . 40404 112 1 Underground underground JJ 40404 112 2 Structures structure NNS 40404 112 3 Of of IN 40404 112 4 Igneous igneous JJ 40404 112 5 Origin Origin NNP 40404 112 6 265 265 CD 40404 112 7 XIII XIII NNP 40404 112 8 . . . 40404 113 1 Metamorphism Metamorphism NNP 40404 113 2 And and CC 40404 113 3 Mineral Mineral NNP 40404 113 4 Veins Veins NNP 40404 113 5 281 281 CD 40404 113 6 PART PART NNP 40404 113 7 III iii CD 40404 113 8 HISTORICAL HISTORICAL NNP 40404 113 9 GEOLOGY GEOLOGY NNP 40404 113 10 XIV XIV NNP 40404 113 11 . . . 40404 114 1 The the DT 40404 114 2 Geological Geological NNP 40404 114 3 Record Record NNP 40404 114 4 291 291 CD 40404 114 5 XV XV NNP 40404 114 6 . . . 40404 115 1 The the DT 40404 115 2 Pre Pre NNP 40404 115 3 - - NNP 40404 115 4 Cambrian Cambrian NNP 40404 115 5 Systems Systems NNPS 40404 115 6 304 304 CD 40404 115 7 XVI XVI NNP 40404 115 8 . . . 40404 116 1 The the DT 40404 116 2 Cambrian Cambrian NNP 40404 116 3 315 315 CD 40404 116 4 XVII XVII NNP 40404 116 5 . . . 40404 117 1 The the DT 40404 117 2 Ordovician Ordovician NNP 40404 117 3 And and CC 40404 117 4 Silurian Silurian NNP 40404 117 5 327 327 CD 40404 117 6 XVIII xviii NN 40404 117 7 . . . 40404 118 1 The the DT 40404 118 2 Devonian Devonian NNP 40404 118 3 341 341 CD 40404 118 4 XIX XIX NNP 40404 118 5 . . . 40404 119 1 The the DT 40404 119 2 Carboniferous Carboniferous NNP 40404 119 3 350 350 CD 40404 119 4 XX XX NNP 40404 119 5 . . . 40404 120 1 The the DT 40404 120 2 Mesozoic Mesozoic NNP 40404 120 3 368 368 CD 40404 120 4 XXI XXI NNP 40404 120 5 . . . 40404 121 1 The the DT 40404 121 2 Tertiary Tertiary NNP 40404 121 3 394 394 CD 40404 121 4 XXII XXII NNS 40404 121 5 . . . 40404 122 1 The the DT 40404 122 2 Quaternary Quaternary NNP 40404 122 3 416 416 CD 40404 122 4 INDEX INDEX VBD 40404 122 5 451 451 CD 40404 122 6 THE the DT 40404 122 7 ELEMENTS element NNS 40404 122 8 OF of IN 40404 122 9 GEOLOGY geology NN 40404 122 10 INTRODUCTION introduction VBP 40404 122 11 THE the DT 40404 122 12 SCOPE scope NN 40404 122 13 AND and CC 40404 122 14 AIM aim NN 40404 122 15 OF of IN 40404 122 16 GEOLOGY GEOLOGY NNP 40404 122 17 Geology Geology NNP 40404 122 18 deals deal VBZ 40404 122 19 with with IN 40404 122 20 the the DT 40404 122 21 rocks rock NNS 40404 122 22 of of IN 40404 122 23 the the DT 40404 122 24 earth earth NN 40404 122 25 's 's POS 40404 122 26 crust crust NN 40404 122 27 . . . 40404 123 1 It -PRON- PRP 40404 123 2 learns learn VBZ 40404 123 3 from from IN 40404 123 4 their -PRON- PRP$ 40404 123 5 composition composition NN 40404 123 6 and and CC 40404 123 7 structure structure NN 40404 123 8 how how WRB 40404 123 9 the the DT 40404 123 10 rocks rock NNS 40404 123 11 were be VBD 40404 123 12 made make VBN 40404 123 13 and and CC 40404 123 14 how how WRB 40404 123 15 they -PRON- PRP 40404 123 16 have have VBP 40404 123 17 been be VBN 40404 123 18 modified modify VBN 40404 123 19 . . . 40404 124 1 It -PRON- PRP 40404 124 2 ascertains ascertain VBZ 40404 124 3 how how WRB 40404 124 4 they -PRON- PRP 40404 124 5 have have VBP 40404 124 6 been be VBN 40404 124 7 brought bring VBN 40404 124 8 to to IN 40404 124 9 their -PRON- PRP$ 40404 124 10 present present JJ 40404 124 11 places place NNS 40404 124 12 and and CC 40404 124 13 wrought work VBD 40404 124 14 to to IN 40404 124 15 their -PRON- PRP$ 40404 124 16 various various JJ 40404 124 17 topographic topographic JJ 40404 124 18 forms form NNS 40404 124 19 , , , 40404 124 20 such such JJ 40404 124 21 as as IN 40404 124 22 hills hill NNS 40404 124 23 and and CC 40404 124 24 valleys valley NNS 40404 124 25 , , , 40404 124 26 plains plain NNS 40404 124 27 and and CC 40404 124 28 mountains mountain NNS 40404 124 29 . . . 40404 125 1 It -PRON- PRP 40404 125 2 studies study VBZ 40404 125 3 the the DT 40404 125 4 vestiges vestige NNS 40404 125 5 which which WDT 40404 125 6 the the DT 40404 125 7 rocks rock NNS 40404 125 8 preserve preserve VBP 40404 125 9 of of IN 40404 125 10 ancient ancient JJ 40404 125 11 organisms organism NNS 40404 125 12 which which WDT 40404 125 13 once once RB 40404 125 14 inhabited inhabit VBD 40404 125 15 our -PRON- PRP$ 40404 125 16 planet planet NN 40404 125 17 . . . 40404 126 1 Geology geology NN 40404 126 2 is be VBZ 40404 126 3 the the DT 40404 126 4 history history NN 40404 126 5 of of IN 40404 126 6 the the DT 40404 126 7 earth earth NN 40404 126 8 and and CC 40404 126 9 its -PRON- PRP$ 40404 126 10 inhabitants inhabitant NNS 40404 126 11 , , , 40404 126 12 as as IN 40404 126 13 read read VBN 40404 126 14 in in IN 40404 126 15 the the DT 40404 126 16 rocks rock NNS 40404 126 17 of of IN 40404 126 18 the the DT 40404 126 19 earth earth NN 40404 126 20 's 's POS 40404 126 21 crust crust NN 40404 126 22 . . . 40404 127 1 To to TO 40404 127 2 obtain obtain VB 40404 127 3 a a DT 40404 127 4 general general JJ 40404 127 5 idea idea NN 40404 127 6 of of IN 40404 127 7 the the DT 40404 127 8 nature nature NN 40404 127 9 and and CC 40404 127 10 method method NN 40404 127 11 of of IN 40404 127 12 our -PRON- PRP$ 40404 127 13 science science NN 40404 127 14 before before IN 40404 127 15 beginning begin VBG 40404 127 16 its -PRON- PRP$ 40404 127 17 study study NN 40404 127 18 in in IN 40404 127 19 detail detail NN 40404 127 20 , , , 40404 127 21 we -PRON- PRP 40404 127 22 may may MD 40404 127 23 visit visit VB 40404 127 24 some some DT 40404 127 25 valley valley NN 40404 127 26 , , , 40404 127 27 such such JJ 40404 127 28 as as IN 40404 127 29 that that DT 40404 127 30 illustrated illustrate VBN 40404 127 31 in in IN 40404 127 32 the the DT 40404 127 33 frontispiece frontispiece NN 40404 127 34 , , , 40404 127 35 on on IN 40404 127 36 whose whose WP$ 40404 127 37 sides side NNS 40404 127 38 are be VBP 40404 127 39 rocky rocky JJ 40404 127 40 ledges ledge NNS 40404 127 41 . . . 40404 128 1 Here here RB 40404 128 2 the the DT 40404 128 3 rocks rock NNS 40404 128 4 lie lie VBP 40404 128 5 in in IN 40404 128 6 horizontal horizontal JJ 40404 128 7 layers layer NNS 40404 128 8 . . . 40404 129 1 Although although IN 40404 129 2 only only RB 40404 129 3 their -PRON- PRP$ 40404 129 4 edges edge NNS 40404 129 5 are be VBP 40404 129 6 exposed expose VBN 40404 129 7 , , , 40404 129 8 we -PRON- PRP 40404 129 9 may may MD 40404 129 10 infer infer VB 40404 129 11 that that IN 40404 129 12 these these DT 40404 129 13 layers layer NNS 40404 129 14 run run VBP 40404 129 15 into into IN 40404 129 16 the the DT 40404 129 17 upland upland NN 40404 129 18 on on IN 40404 129 19 either either DT 40404 129 20 side side NN 40404 129 21 and and CC 40404 129 22 underlie underlie VB 40404 129 23 the the DT 40404 129 24 entire entire JJ 40404 129 25 district district NN 40404 129 26 ; ; : 40404 129 27 they -PRON- PRP 40404 129 28 are be VBP 40404 129 29 part part NN 40404 129 30 of of IN 40404 129 31 the the DT 40404 129 32 foundation foundation NN 40404 129 33 of of IN 40404 129 34 solid solid JJ 40404 129 35 rock rock NN 40404 129 36 which which WDT 40404 129 37 everywhere everywhere RB 40404 129 38 is be VBZ 40404 129 39 found find VBN 40404 129 40 beneath beneath IN 40404 129 41 the the DT 40404 129 42 loose loose JJ 40404 129 43 materials material NNS 40404 129 44 of of IN 40404 129 45 the the DT 40404 129 46 surface surface NN 40404 129 47 . . . 40404 130 1 The the DT 40404 130 2 ledges ledge NNS 40404 130 3 of of IN 40404 130 4 the the DT 40404 130 5 valley valley NN 40404 130 6 of of IN 40404 130 7 our -PRON- PRP$ 40404 130 8 illustration illustration NN 40404 130 9 are be VBP 40404 130 10 of of IN 40404 130 11 sandstone sandstone NN 40404 130 12 . . . 40404 131 1 Looking look VBG 40404 131 2 closely closely RB 40404 131 3 at at IN 40404 131 4 the the DT 40404 131 5 rock rock NN 40404 131 6 we -PRON- PRP 40404 131 7 see see VBP 40404 131 8 that that IN 40404 131 9 it -PRON- PRP 40404 131 10 is be VBZ 40404 131 11 composed compose VBN 40404 131 12 of of IN 40404 131 13 myriads myriad NNS 40404 131 14 of of IN 40404 131 15 grains grain NNS 40404 131 16 of of IN 40404 131 17 sand sand NN 40404 131 18 cemented cement VBD 40404 131 19 together together RB 40404 131 20 . . . 40404 132 1 These these DT 40404 132 2 grains grain NNS 40404 132 3 have have VBP 40404 132 4 been be VBN 40404 132 5 worn wear VBN 40404 132 6 and and CC 40404 132 7 rounded round VBN 40404 132 8 . . . 40404 133 1 They -PRON- PRP 40404 133 2 are be VBP 40404 133 3 sorted sort VBN 40404 133 4 also also RB 40404 133 5 , , , 40404 133 6 those those DT 40404 133 7 of of IN 40404 133 8 each each DT 40404 133 9 layer layer NN 40404 133 10 being be VBG 40404 133 11 about about IN 40404 133 12 of of IN 40404 133 13 a a DT 40404 133 14 size size NN 40404 133 15 . . . 40404 134 1 By by IN 40404 134 2 some some DT 40404 134 3 means mean NNS 40404 134 4 they -PRON- PRP 40404 134 5 have have VBP 40404 134 6 been be VBN 40404 134 7 brought bring VBN 40404 134 8 hither hither NN 40404 134 9 from from IN 40404 134 10 some some DT 40404 134 11 more more RBR 40404 134 12 ancient ancient JJ 40404 134 13 source source NN 40404 134 14 . . . 40404 135 1 Surely surely RB 40404 135 2 these these DT 40404 135 3 grains grain NNS 40404 135 4 have have VBP 40404 135 5 had have VBN 40404 135 6 a a DT 40404 135 7 history history NN 40404 135 8 before before IN 40404 135 9 they -PRON- PRP 40404 135 10 here here RB 40404 135 11 found find VBD 40404 135 12 a a DT 40404 135 13 resting rest VBG 40404 135 14 place,--a place,--a NNP 40404 135 15 history history NN 40404 135 16 which which WDT 40404 135 17 we -PRON- PRP 40404 135 18 are be VBP 40404 135 19 to to TO 40404 135 20 learn learn VB 40404 135 21 to to TO 40404 135 22 read read VB 40404 135 23 . . . 40404 136 1 The the DT 40404 136 2 successive successive JJ 40404 136 3 layers layer NNS 40404 136 4 of of IN 40404 136 5 the the DT 40404 136 6 rock rock NN 40404 136 7 suggest suggest VBP 40404 136 8 that that IN 40404 136 9 they -PRON- PRP 40404 136 10 were be VBD 40404 136 11 built build VBN 40404 136 12 one one CD 40404 136 13 after after IN 40404 136 14 another another DT 40404 136 15 from from IN 40404 136 16 the the DT 40404 136 17 bottom bottom NN 40404 136 18 upward upward RB 40404 136 19 . . . 40404 137 1 We -PRON- PRP 40404 137 2 may may MD 40404 137 3 be be VB 40404 137 4 as as RB 40404 137 5 sure sure JJ 40404 137 6 that that IN 40404 137 7 each each DT 40404 137 8 layer layer NN 40404 137 9 was be VBD 40404 137 10 formed form VBN 40404 137 11 before before IN 40404 137 12 those those DT 40404 137 13 above above IN 40404 137 14 it -PRON- PRP 40404 137 15 as as IN 40404 137 16 that that IN 40404 137 17 the the DT 40404 137 18 bottom bottom JJ 40404 137 19 courses course NNS 40404 137 20 of of IN 40404 137 21 stone stone NN 40404 137 22 in in IN 40404 137 23 a a DT 40404 137 24 wall wall NN 40404 137 25 were be VBD 40404 137 26 laid lay VBN 40404 137 27 before before IN 40404 137 28 the the DT 40404 137 29 courses course NNS 40404 137 30 which which WDT 40404 137 31 rest rest VBP 40404 137 32 upon upon IN 40404 137 33 them -PRON- PRP 40404 137 34 . . . 40404 138 1 We -PRON- PRP 40404 138 2 have have VBP 40404 138 3 no no DT 40404 138 4 reason reason NN 40404 138 5 to to TO 40404 138 6 believe believe VB 40404 138 7 that that IN 40404 138 8 the the DT 40404 138 9 lowest low JJS 40404 138 10 layers layer NNS 40404 138 11 which which WDT 40404 138 12 we -PRON- PRP 40404 138 13 see see VBP 40404 138 14 here here RB 40404 138 15 were be VBD 40404 138 16 the the DT 40404 138 17 earliest early JJS 40404 138 18 ever ever RB 40404 138 19 formed form VBN 40404 138 20 . . . 40404 139 1 Indeed indeed RB 40404 139 2 , , , 40404 139 3 some some DT 40404 139 4 deep deep JJ 40404 139 5 boring boring NN 40404 139 6 in in IN 40404 139 7 the the DT 40404 139 8 vicinity vicinity NN 40404 139 9 may may MD 40404 139 10 prove prove VB 40404 139 11 that that IN 40404 139 12 the the DT 40404 139 13 ledges ledge NNS 40404 139 14 rest rest VBP 40404 139 15 upon upon IN 40404 139 16 other other JJ 40404 139 17 layers layer NNS 40404 139 18 of of IN 40404 139 19 rock rock NN 40404 139 20 which which WDT 40404 139 21 extend extend VBP 40404 139 22 downward downward RB 40404 139 23 for for IN 40404 139 24 many many JJ 40404 139 25 hundreds hundred NNS 40404 139 26 of of IN 40404 139 27 feet foot NNS 40404 139 28 below below IN 40404 139 29 the the DT 40404 139 30 valley valley NNP 40404 139 31 floor floor NN 40404 139 32 . . . 40404 140 1 Nor nor CC 40404 140 2 may may MD 40404 140 3 we -PRON- PRP 40404 140 4 conclude conclude VB 40404 140 5 that that IN 40404 140 6 the the DT 40404 140 7 highest high JJS 40404 140 8 layers layer NNS 40404 140 9 here here RB 40404 140 10 were be VBD 40404 140 11 the the DT 40404 140 12 latest late JJS 40404 140 13 ever ever RB 40404 140 14 laid lay VBN 40404 140 15 ; ; : 40404 140 16 for for IN 40404 140 17 elsewhere elsewhere RB 40404 140 18 we -PRON- PRP 40404 140 19 may may MD 40404 140 20 find find VB 40404 140 21 still still RB 40404 140 22 later later RB 40404 140 23 layers layer NNS 40404 140 24 lying lie VBG 40404 140 25 upon upon IN 40404 140 26 them -PRON- PRP 40404 140 27 . . . 40404 141 1 A a DT 40404 141 2 short short JJ 40404 141 3 search search NN 40404 141 4 may may MD 40404 141 5 find find VB 40404 141 6 in in IN 40404 141 7 the the DT 40404 141 8 rock rock NN 40404 141 9 relics relic NNS 40404 141 10 of of IN 40404 141 11 animals animal NNS 40404 141 12 , , , 40404 141 13 such such JJ 40404 141 14 as as IN 40404 141 15 the the DT 40404 141 16 imprints imprint NNS 40404 141 17 of of IN 40404 141 18 shells shell NNS 40404 141 19 , , , 40404 141 20 which which WDT 40404 141 21 lived live VBD 40404 141 22 when when WRB 40404 141 23 it -PRON- PRP 40404 141 24 was be VBD 40404 141 25 deposited deposit VBN 40404 141 26 ; ; : 40404 141 27 and and CC 40404 141 28 as as IN 40404 141 29 these these DT 40404 141 30 are be VBP 40404 141 31 of of IN 40404 141 32 kinds kind NNS 40404 141 33 whose whose WP$ 40404 141 34 nearest near JJS 40404 141 35 living living NN 40404 141 36 relatives relative NNS 40404 141 37 now now RB 40404 141 38 have have VBP 40404 141 39 their -PRON- PRP$ 40404 141 40 home home NN 40404 141 41 in in IN 40404 141 42 the the DT 40404 141 43 sea sea NN 40404 141 44 , , , 40404 141 45 we -PRON- PRP 40404 141 46 infer infer VBP 40404 141 47 that that IN 40404 141 48 it -PRON- PRP 40404 141 49 was be VBD 40404 141 50 on on IN 40404 141 51 the the DT 40404 141 52 flat flat JJ 40404 141 53 sea sea NN 40404 141 54 floor floor NN 40404 141 55 that that WDT 40404 141 56 the the DT 40404 141 57 sandstone sandstone NN 40404 141 58 was be VBD 40404 141 59 laid lay VBN 40404 141 60 . . . 40404 142 1 Its -PRON- PRP$ 40404 142 2 present present JJ 40404 142 3 position position NN 40404 142 4 hundreds hundred NNS 40404 142 5 of of IN 40404 142 6 feet foot NNS 40404 142 7 above above IN 40404 142 8 sea sea NN 40404 142 9 level level NN 40404 142 10 proves prove VBZ 40404 142 11 that that IN 40404 142 12 it -PRON- PRP 40404 142 13 has have VBZ 40404 142 14 since since IN 40404 142 15 emerged emerge VBN 40404 142 16 to to TO 40404 142 17 form form VB 40404 142 18 part part NN 40404 142 19 of of IN 40404 142 20 the the DT 40404 142 21 land land NN 40404 142 22 ; ; : 40404 142 23 while while IN 40404 142 24 the the DT 40404 142 25 flatness flatness NN 40404 142 26 of of IN 40404 142 27 the the DT 40404 142 28 beds bed NNS 40404 142 29 shows show VBZ 40404 142 30 that that IN 40404 142 31 the the DT 40404 142 32 movement movement NN 40404 142 33 was be VBD 40404 142 34 so so RB 40404 142 35 uniform uniform JJ 40404 142 36 and and CC 40404 142 37 gentle gentle JJ 40404 142 38 as as IN 40404 142 39 not not RB 40404 142 40 to to TO 40404 142 41 break break VB 40404 142 42 or or CC 40404 142 43 strongly strongly RB 40404 142 44 bend bend VB 40404 142 45 them -PRON- PRP 40404 142 46 from from IN 40404 142 47 their -PRON- PRP$ 40404 142 48 original original JJ 40404 142 49 attitude attitude NN 40404 142 50 . . . 40404 143 1 The the DT 40404 143 2 surface surface NN 40404 143 3 of of IN 40404 143 4 some some DT 40404 143 5 of of IN 40404 143 6 these these DT 40404 143 7 layers layer NNS 40404 143 8 is be VBZ 40404 143 9 ripple ripple NN 40404 143 10 - - HYPH 40404 143 11 marked mark VBN 40404 143 12 . . . 40404 144 1 Hence hence RB 40404 144 2 the the DT 40404 144 3 sand sand NN 40404 144 4 must must MD 40404 144 5 once once RB 40404 144 6 have have VB 40404 144 7 been be VBN 40404 144 8 as as RB 40404 144 9 loose loose JJ 40404 144 10 as as IN 40404 144 11 that that DT 40404 144 12 of of IN 40404 144 13 shallow shallow JJ 40404 144 14 sea sea NN 40404 144 15 bottoms bottom NNS 40404 144 16 and and CC 40404 144 17 sea sea NN 40404 144 18 beaches beach NNS 40404 144 19 to to IN 40404 144 20 - - HYPH 40404 144 21 day day NN 40404 144 22 , , , 40404 144 23 which which WDT 40404 144 24 is be VBZ 40404 144 25 thrown throw VBN 40404 144 26 into into IN 40404 144 27 similar similar JJ 40404 144 28 ripples ripple NNS 40404 144 29 by by IN 40404 144 30 movements movement NNS 40404 144 31 of of IN 40404 144 32 the the DT 40404 144 33 water water NN 40404 144 34 . . . 40404 145 1 In in IN 40404 145 2 some some DT 40404 145 3 way way NN 40404 145 4 the the DT 40404 145 5 grains grain NNS 40404 145 6 have have VBP 40404 145 7 since since IN 40404 145 8 become become VBN 40404 145 9 cemented cemented JJ 40404 145 10 into into IN 40404 145 11 firm firm JJ 40404 145 12 rock rock NN 40404 145 13 . . . 40404 146 1 Note note VB 40404 146 2 that that IN 40404 146 3 the the DT 40404 146 4 layers layer NNS 40404 146 5 on on IN 40404 146 6 one one CD 40404 146 7 side side NN 40404 146 8 of of IN 40404 146 9 the the DT 40404 146 10 valley valley NN 40404 146 11 agree agree VBP 40404 146 12 with with IN 40404 146 13 those those DT 40404 146 14 on on IN 40404 146 15 the the DT 40404 146 16 other other JJ 40404 146 17 , , , 40404 146 18 each each DT 40404 146 19 matching match VBG 40404 146 20 the the DT 40404 146 21 one one CD 40404 146 22 opposite opposite NN 40404 146 23 at at IN 40404 146 24 the the DT 40404 146 25 same same JJ 40404 146 26 level level NN 40404 146 27 . . . 40404 147 1 Once once IN 40404 147 2 they -PRON- PRP 40404 147 3 were be VBD 40404 147 4 continuous continuous JJ 40404 147 5 across across IN 40404 147 6 the the DT 40404 147 7 valley valley NN 40404 147 8 . . . 40404 148 1 Where where WRB 40404 148 2 the the DT 40404 148 3 valley valley NN 40404 148 4 now now RB 40404 148 5 is be VBZ 40404 148 6 was be VBD 40404 148 7 once once RB 40404 148 8 a a DT 40404 148 9 continuous continuous JJ 40404 148 10 upland upland NN 40404 148 11 built build VBN 40404 148 12 of of IN 40404 148 13 horizontal horizontal JJ 40404 148 14 layers layer NNS 40404 148 15 ; ; : 40404 148 16 the the DT 40404 148 17 layers layer NNS 40404 148 18 now now RB 40404 148 19 show show VBP 40404 148 20 their -PRON- PRP$ 40404 148 21 edges edge NNS 40404 148 22 , , , 40404 148 23 or or CC 40404 148 24 _ _ NNP 40404 148 25 outcrop outcrop NNP 40404 148 26 _ _ NNP 40404 148 27 , , , 40404 148 28 on on IN 40404 148 29 the the DT 40404 148 30 valley valley NN 40404 148 31 sides side NNS 40404 148 32 because because IN 40404 148 33 they -PRON- PRP 40404 148 34 have have VBP 40404 148 35 been be VBN 40404 148 36 cut cut VBN 40404 148 37 by by IN 40404 148 38 the the DT 40404 148 39 valley valley NNP 40404 148 40 trench trench NN 40404 148 41 . . . 40404 149 1 The the DT 40404 149 2 rock rock NN 40404 149 3 of of IN 40404 149 4 the the DT 40404 149 5 ledges ledge NNS 40404 149 6 is be VBZ 40404 149 7 crumbling crumble VBG 40404 149 8 away away RB 40404 149 9 . . . 40404 150 1 At at IN 40404 150 2 the the DT 40404 150 3 foot foot NN 40404 150 4 of of IN 40404 150 5 each each DT 40404 150 6 step step NN 40404 150 7 of of IN 40404 150 8 rock rock NN 40404 150 9 lie lie NN 40404 150 10 fragments fragment NNS 40404 150 11 which which WDT 40404 150 12 have have VBP 40404 150 13 fallen fall VBN 40404 150 14 . . . 40404 151 1 Thus thus RB 40404 151 2 the the DT 40404 151 3 valley valley NN 40404 151 4 is be VBZ 40404 151 5 slowly slowly RB 40404 151 6 widening widen VBG 40404 151 7 . . . 40404 152 1 It -PRON- PRP 40404 152 2 has have VBZ 40404 152 3 been be VBN 40404 152 4 narrower narrow JJR 40404 152 5 in in IN 40404 152 6 the the DT 40404 152 7 past past NN 40404 152 8 ; ; : 40404 152 9 it -PRON- PRP 40404 152 10 will will MD 40404 152 11 be be VB 40404 152 12 wider wide JJR 40404 152 13 in in IN 40404 152 14 the the DT 40404 152 15 future future NN 40404 152 16 . . . 40404 153 1 Through through IN 40404 153 2 the the DT 40404 153 3 valley valley NN 40404 153 4 runs run VBZ 40404 153 5 a a DT 40404 153 6 stream stream NN 40404 153 7 . . . 40404 154 1 The the DT 40404 154 2 waters water NNS 40404 154 3 of of IN 40404 154 4 rains rain NNS 40404 154 5 which which WDT 40404 154 6 have have VBP 40404 154 7 fallen fall VBN 40404 154 8 on on IN 40404 154 9 the the DT 40404 154 10 upper upper JJ 40404 154 11 parts part NNS 40404 154 12 of of IN 40404 154 13 the the DT 40404 154 14 stream stream NN 40404 154 15 's 's POS 40404 154 16 basin basin NN 40404 154 17 are be VBP 40404 154 18 now now RB 40404 154 19 on on IN 40404 154 20 their -PRON- PRP$ 40404 154 21 way way NN 40404 154 22 to to IN 40404 154 23 the the DT 40404 154 24 river river NN 40404 154 25 and and CC 40404 154 26 the the DT 40404 154 27 sea sea NN 40404 154 28 . . . 40404 155 1 Rock rock NN 40404 155 2 fragments fragment NNS 40404 155 3 and and CC 40404 155 4 grains grain NNS 40404 155 5 of of IN 40404 155 6 sand sand NN 40404 155 7 creeping creep VBG 40404 155 8 down down IN 40404 155 9 the the DT 40404 155 10 valley valley NN 40404 155 11 slopes slope NNS 40404 155 12 come come VBN 40404 155 13 within within IN 40404 155 14 reach reach NN 40404 155 15 of of IN 40404 155 16 the the DT 40404 155 17 stream stream NN 40404 155 18 and and CC 40404 155 19 are be VBP 40404 155 20 washed wash VBN 40404 155 21 along along IN 40404 155 22 by by IN 40404 155 23 the the DT 40404 155 24 running running NN 40404 155 25 water water NN 40404 155 26 . . . 40404 156 1 Here here RB 40404 156 2 and and CC 40404 156 3 there there RB 40404 156 4 they -PRON- PRP 40404 156 5 lodge lodge VBP 40404 156 6 for for IN 40404 156 7 a a DT 40404 156 8 time time NN 40404 156 9 in in IN 40404 156 10 banks bank NNS 40404 156 11 of of IN 40404 156 12 sand sand NN 40404 156 13 and and CC 40404 156 14 gravel gravel NN 40404 156 15 , , , 40404 156 16 but but CC 40404 156 17 sooner soon RBR 40404 156 18 or or CC 40404 156 19 later later RB 40404 156 20 they -PRON- PRP 40404 156 21 are be VBP 40404 156 22 taken take VBN 40404 156 23 up up RP 40404 156 24 again again RB 40404 156 25 and and CC 40404 156 26 carried carry VBN 40404 156 27 on on RB 40404 156 28 . . . 40404 157 1 The the DT 40404 157 2 grains grain NNS 40404 157 3 of of IN 40404 157 4 sand sand NN 40404 157 5 which which WDT 40404 157 6 were be VBD 40404 157 7 brought bring VBN 40404 157 8 from from IN 40404 157 9 some some DT 40404 157 10 ancient ancient JJ 40404 157 11 source source NN 40404 157 12 to to TO 40404 157 13 form form VB 40404 157 14 these these DT 40404 157 15 rocks rock NNS 40404 157 16 are be VBP 40404 157 17 on on IN 40404 157 18 their -PRON- PRP$ 40404 157 19 way way NN 40404 157 20 to to IN 40404 157 21 some some DT 40404 157 22 new new JJ 40404 157 23 goal goal NN 40404 157 24 . . . 40404 158 1 As as IN 40404 158 2 they -PRON- PRP 40404 158 3 are be VBP 40404 158 4 washed wash VBN 40404 158 5 along along IN 40404 158 6 the the DT 40404 158 7 rocky rocky JJ 40404 158 8 bed bed NN 40404 158 9 of of IN 40404 158 10 the the DT 40404 158 11 stream stream NN 40404 158 12 they -PRON- PRP 40404 158 13 slowly slowly RB 40404 158 14 rasp rasp VBP 40404 158 15 and and CC 40404 158 16 wear wear VBP 40404 158 17 it -PRON- PRP 40404 158 18 deeper deep JJR 40404 158 19 . . . 40404 159 1 The the DT 40404 159 2 valley valley NN 40404 159 3 will will MD 40404 159 4 be be VB 40404 159 5 deeper deep JJR 40404 159 6 in in IN 40404 159 7 the the DT 40404 159 8 future future NN 40404 159 9 ; ; : 40404 159 10 it -PRON- PRP 40404 159 11 has have VBZ 40404 159 12 been be VBN 40404 159 13 less less RBR 40404 159 14 deep deep JJ 40404 159 15 in in IN 40404 159 16 the the DT 40404 159 17 past past NN 40404 159 18 . . . 40404 160 1 In in IN 40404 160 2 this this DT 40404 160 3 little little JJ 40404 160 4 valley valley NN 40404 160 5 we -PRON- PRP 40404 160 6 see see VBP 40404 160 7 slow slow JJ 40404 160 8 changes change NNS 40404 160 9 now now RB 40404 160 10 in in IN 40404 160 11 progress progress NN 40404 160 12 . . . 40404 161 1 We -PRON- PRP 40404 161 2 find find VBP 40404 161 3 also also RB 40404 161 4 in in IN 40404 161 5 the the DT 40404 161 6 composition composition NN 40404 161 7 , , , 40404 161 8 the the DT 40404 161 9 structure structure NN 40404 161 10 , , , 40404 161 11 and and CC 40404 161 12 the the DT 40404 161 13 attitude attitude NN 40404 161 14 of of IN 40404 161 15 the the DT 40404 161 16 rocks rock NNS 40404 161 17 , , , 40404 161 18 and and CC 40404 161 19 the the DT 40404 161 20 land land NN 40404 161 21 forms form NNS 40404 161 22 to to TO 40404 161 23 which which WDT 40404 161 24 they -PRON- PRP 40404 161 25 have have VBP 40404 161 26 been be VBN 40404 161 27 sculptured sculpture VBN 40404 161 28 , , , 40404 161 29 the the DT 40404 161 30 record record NN 40404 161 31 of of IN 40404 161 32 a a DT 40404 161 33 long long JJ 40404 161 34 succession succession NN 40404 161 35 of of IN 40404 161 36 past past JJ 40404 161 37 changes change NNS 40404 161 38 involving involve VBG 40404 161 39 the the DT 40404 161 40 origin origin NN 40404 161 41 of of IN 40404 161 42 sand sand NN 40404 161 43 grains grain NNS 40404 161 44 and and CC 40404 161 45 their -PRON- PRP$ 40404 161 46 gathering gathering NN 40404 161 47 and and CC 40404 161 48 deposit deposit NN 40404 161 49 upon upon IN 40404 161 50 the the DT 40404 161 51 bottom bottom NN 40404 161 52 of of IN 40404 161 53 some some DT 40404 161 54 ancient ancient JJ 40404 161 55 sea sea NN 40404 161 56 , , , 40404 161 57 the the DT 40404 161 58 cementation cementation NN 40404 161 59 of of IN 40404 161 60 their -PRON- PRP$ 40404 161 61 layers layer NNS 40404 161 62 into into IN 40404 161 63 solid solid JJ 40404 161 64 rock rock NN 40404 161 65 , , , 40404 161 66 the the DT 40404 161 67 uplift uplift NN 40404 161 68 of of IN 40404 161 69 the the DT 40404 161 70 rocks rock NNS 40404 161 71 to to TO 40404 161 72 form form VB 40404 161 73 a a DT 40404 161 74 land land NN 40404 161 75 surface surface NN 40404 161 76 , , , 40404 161 77 and and CC 40404 161 78 , , , 40404 161 79 last last RB 40404 161 80 of of IN 40404 161 81 all all DT 40404 161 82 , , , 40404 161 83 the the DT 40404 161 84 carving carving NN 40404 161 85 of of IN 40404 161 86 a a DT 40404 161 87 valley valley NN 40404 161 88 in in IN 40404 161 89 the the DT 40404 161 90 upland upland NN 40404 161 91 . . . 40404 162 1 Everywhere everywhere RB 40404 162 2 , , , 40404 162 3 in in IN 40404 162 4 the the DT 40404 162 5 fields field NNS 40404 162 6 , , , 40404 162 7 along along IN 40404 162 8 the the DT 40404 162 9 river river NN 40404 162 10 , , , 40404 162 11 among among IN 40404 162 12 the the DT 40404 162 13 mountains mountain NNS 40404 162 14 , , , 40404 162 15 by by IN 40404 162 16 the the DT 40404 162 17 seashore seashore NN 40404 162 18 , , , 40404 162 19 and and CC 40404 162 20 in in IN 40404 162 21 the the DT 40404 162 22 desert desert NN 40404 162 23 , , , 40404 162 24 we -PRON- PRP 40404 162 25 may may MD 40404 162 26 discover discover VB 40404 162 27 slow slow JJ 40404 162 28 changes change NNS 40404 162 29 now now RB 40404 162 30 in in IN 40404 162 31 progress progress NN 40404 162 32 and and CC 40404 162 33 the the DT 40404 162 34 record record NN 40404 162 35 of of IN 40404 162 36 similar similar JJ 40404 162 37 changes change NNS 40404 162 38 in in IN 40404 162 39 the the DT 40404 162 40 past past NN 40404 162 41 . . . 40404 163 1 Everywhere everywhere RB 40404 163 2 we -PRON- PRP 40404 163 3 may may MD 40404 163 4 catch catch VB 40404 163 5 glimpses glimpse NNS 40404 163 6 of of IN 40404 163 7 a a DT 40404 163 8 process process NN 40404 163 9 of of IN 40404 163 10 gradual gradual JJ 40404 163 11 change change NN 40404 163 12 , , , 40404 163 13 which which WDT 40404 163 14 stretches stretch VBZ 40404 163 15 backward backward RB 40404 163 16 into into IN 40404 163 17 the the DT 40404 163 18 past past NN 40404 163 19 and and CC 40404 163 20 forward forward RB 40404 163 21 into into IN 40404 163 22 the the DT 40404 163 23 future future NN 40404 163 24 , , , 40404 163 25 by by IN 40404 163 26 which which WDT 40404 163 27 the the DT 40404 163 28 forms form NNS 40404 163 29 and and CC 40404 163 30 structures structure NNS 40404 163 31 of of IN 40404 163 32 the the DT 40404 163 33 face face NN 40404 163 34 of of IN 40404 163 35 the the DT 40404 163 36 earth earth NN 40404 163 37 are be VBP 40404 163 38 continually continually RB 40404 163 39 built build VBN 40404 163 40 and and CC 40404 163 41 continually continually RB 40404 163 42 destroyed destroy VBN 40404 163 43 . . . 40404 164 1 The the DT 40404 164 2 science science NN 40404 164 3 which which WDT 40404 164 4 deals deal VBZ 40404 164 5 with with IN 40404 164 6 this this DT 40404 164 7 long long JJ 40404 164 8 process process NN 40404 164 9 is be VBZ 40404 164 10 geology geology NN 40404 164 11 . . . 40404 165 1 Geology geology NN 40404 165 2 treats treat NNS 40404 165 3 of of IN 40404 165 4 the the DT 40404 165 5 natural natural JJ 40404 165 6 changes change NNS 40404 165 7 now now RB 40404 165 8 taking take VBG 40404 165 9 place place NN 40404 165 10 upon upon IN 40404 165 11 the the DT 40404 165 12 earth earth NN 40404 165 13 and and CC 40404 165 14 within within IN 40404 165 15 it -PRON- PRP 40404 165 16 , , , 40404 165 17 the the DT 40404 165 18 agencies agency NNS 40404 165 19 which which WDT 40404 165 20 produce produce VBP 40404 165 21 them -PRON- PRP 40404 165 22 , , , 40404 165 23 and and CC 40404 165 24 the the DT 40404 165 25 land land NN 40404 165 26 forms form NNS 40404 165 27 and and CC 40404 165 28 rock rock NN 40404 165 29 structures structure NNS 40404 165 30 which which WDT 40404 165 31 result result VBP 40404 165 32 . . . 40404 166 1 It -PRON- PRP 40404 166 2 studies study VBZ 40404 166 3 the the DT 40404 166 4 changes change NNS 40404 166 5 of of IN 40404 166 6 the the DT 40404 166 7 present present NN 40404 166 8 in in IN 40404 166 9 order order NN 40404 166 10 to to TO 40404 166 11 be be VB 40404 166 12 able able JJ 40404 166 13 to to TO 40404 166 14 read read VB 40404 166 15 the the DT 40404 166 16 history history NN 40404 166 17 of of IN 40404 166 18 the the DT 40404 166 19 earth earth NN 40404 166 20 's 's POS 40404 166 21 changes change NNS 40404 166 22 in in IN 40404 166 23 the the DT 40404 166 24 past past NN 40404 166 25 . . . 40404 167 1 The the DT 40404 167 2 various various JJ 40404 167 3 agencies agency NNS 40404 167 4 which which WDT 40404 167 5 have have VBP 40404 167 6 fashioned fashion VBN 40404 167 7 the the DT 40404 167 8 face face NN 40404 167 9 of of IN 40404 167 10 the the DT 40404 167 11 earth earth NN 40404 167 12 may may MD 40404 167 13 . . . 40404 168 1 be be VB 40404 168 2 divided divide VBN 40404 168 3 into into IN 40404 168 4 two two CD 40404 168 5 general general JJ 40404 168 6 classes class NNS 40404 168 7 . . . 40404 169 1 In in IN 40404 169 2 Part Part NNP 40404 169 3 I -PRON- PRP 40404 169 4 we -PRON- PRP 40404 169 5 shall shall MD 40404 169 6 consider consider VB 40404 169 7 those those DT 40404 169 8 which which WDT 40404 169 9 work work VBP 40404 169 10 upon upon IN 40404 169 11 the the DT 40404 169 12 earth earth NN 40404 169 13 from from IN 40404 169 14 without without RB 40404 169 15 , , , 40404 169 16 such such JJ 40404 169 17 as as IN 40404 169 18 the the DT 40404 169 19 weather weather NN 40404 169 20 , , , 40404 169 21 running running NN 40404 169 22 water water NN 40404 169 23 , , , 40404 169 24 glaciers glacier NNS 40404 169 25 , , , 40404 169 26 the the DT 40404 169 27 wind wind NN 40404 169 28 , , , 40404 169 29 and and CC 40404 169 30 the the DT 40404 169 31 sea sea NN 40404 169 32 . . . 40404 170 1 In in IN 40404 170 2 Part Part NNP 40404 170 3 II II NNP 40404 170 4 we -PRON- PRP 40404 170 5 shall shall MD 40404 170 6 treat treat VB 40404 170 7 of of IN 40404 170 8 those those DT 40404 170 9 agencies agency NNS 40404 170 10 whose whose WP$ 40404 170 11 sources source NNS 40404 170 12 are be VBP 40404 170 13 within within IN 40404 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but but CC 40404 171 18 also also RB 40404 171 19 the the DT 40404 171 20 records record NNS 40404 171 21 which which WDT 40404 171 22 it -PRON- PRP 40404 171 23 leaves leave VBZ 40404 171 24 in in IN 40404 171 25 the the DT 40404 171 26 rock rock NN 40404 171 27 structures structure NNS 40404 171 28 and and CC 40404 171 29 the the DT 40404 171 30 land land NN 40404 171 31 forms form NNS 40404 171 32 which which WDT 40404 171 33 it -PRON- PRP 40404 171 34 produces produce VBZ 40404 171 35 . . . 40404 172 1 With with IN 40404 172 2 this this DT 40404 172 3 preparation preparation NN 40404 172 4 we -PRON- PRP 40404 172 5 shall shall MD 40404 172 6 be be VB 40404 172 7 able able JJ 40404 172 8 in in IN 40404 172 9 Part Part NNP 40404 172 10 III III NNP 40404 172 11 to to TO 40404 172 12 read read VB 40404 172 13 in in IN 40404 172 14 the the DT 40404 172 15 records record NNS 40404 172 16 of of IN 40404 172 17 the the DT 40404 172 18 rocks rock NNS 40404 172 19 the the DT 40404 172 20 history history NN 40404 172 21 of of IN 40404 172 22 our -PRON- PRP$ 40404 172 23 planet planet NN 40404 172 24 and and CC 40404 172 25 the the DT 40404 172 26 successive successive JJ 40404 172 27 forms form NNS 40404 172 28 of of IN 40404 172 29 life life NN 40404 172 30 which which WDT 40404 172 31 have have VBP 40404 172 32 dwelt dwell VBN 40404 172 33 upon upon IN 40404 172 34 it -PRON- PRP 40404 172 35 . . . 40404 173 1 Part part NN 40404 173 2 I -PRON- PRP 40404 173 3 EXTERNAL external VBP 40404 173 4 GEOLOGICAL geological NN 40404 173 5 AGENCIES agency NNS 40404 173 6 CHAPTER chapter NN 40404 173 7 I -PRON- PRP 40404 173 8 THE the DT 40404 173 9 WORK work NN 40404 173 10 OF of IN 40404 173 11 THE the DT 40404 173 12 WEATHER weather NN 40404 173 13 In in IN 40404 173 14 our -PRON- PRP$ 40404 173 15 excursion excursion NN 40404 173 16 to to IN 40404 173 17 the the DT 40404 173 18 valley valley NN 40404 173 19 with with IN 40404 173 20 sandstone sandstone NN 40404 173 21 ledges ledge NNS 40404 173 22 we -PRON- PRP 40404 173 23 witnessed witness VBD 40404 173 24 a a DT 40404 173 25 process process NN 40404 173 26 which which WDT 40404 173 27 is be VBZ 40404 173 28 going go VBG 40404 173 29 forward forward RB 40404 173 30 in in IN 40404 173 31 all all DT 40404 173 32 lands land NNS 40404 173 33 . . . 40404 174 1 Everywhere everywhere RB 40404 174 2 the the DT 40404 174 3 rocks rock NNS 40404 174 4 are be VBP 40404 174 5 crumbling crumble VBG 40404 174 6 away away RB 40404 174 7 ; ; : 40404 174 8 their -PRON- PRP$ 40404 174 9 fragments fragment NNS 40404 174 10 are be VBP 40404 174 11 creeping creep VBG 40404 174 12 down down IN 40404 174 13 hillsides hillside NNS 40404 174 14 to to IN 40404 174 15 the the DT 40404 174 16 stream stream NN 40404 174 17 ways way NNS 40404 174 18 and and CC 40404 174 19 are be VBP 40404 174 20 carried carry VBN 40404 174 21 by by IN 40404 174 22 the the DT 40404 174 23 streams stream NNS 40404 174 24 to to IN 40404 174 25 the the DT 40404 174 26 sea sea NN 40404 174 27 , , , 40404 174 28 where where WRB 40404 174 29 they -PRON- PRP 40404 174 30 are be VBP 40404 174 31 rebuilt rebuild VBN 40404 174 32 into into IN 40404 174 33 rocky rocky JJ 40404 174 34 layers layer NNS 40404 174 35 . . . 40404 175 1 When when WRB 40404 175 2 again again RB 40404 175 3 the the DT 40404 175 4 rocks rock NNS 40404 175 5 are be VBP 40404 175 6 lifted lift VBN 40404 175 7 to to TO 40404 175 8 form form VB 40404 175 9 land land NN 40404 175 10 the the DT 40404 175 11 process process NN 40404 175 12 will will MD 40404 175 13 begin begin VB 40404 175 14 anew anew RB 40404 175 15 ; ; : 40404 175 16 again again RB 40404 175 17 they -PRON- PRP 40404 175 18 will will MD 40404 175 19 crumble crumble VB 40404 175 20 and and CC 40404 175 21 creep creep VB 40404 175 22 down down JJ 40404 175 23 slopes slope NNS 40404 175 24 and and CC 40404 175 25 be be VB 40404 175 26 washed wash VBN 40404 175 27 by by IN 40404 175 28 streams stream NNS 40404 175 29 to to IN 40404 175 30 the the DT 40404 175 31 sea sea NN 40404 175 32 . . . 40404 176 1 Let let VB 40404 176 2 us -PRON- PRP 40404 176 3 begin begin VB 40404 176 4 our -PRON- PRP$ 40404 176 5 study study NN 40404 176 6 of of IN 40404 176 7 this this DT 40404 176 8 long long JJ 40404 176 9 cycle cycle NN 40404 176 10 of of IN 40404 176 11 change change NN 40404 176 12 at at IN 40404 176 13 the the DT 40404 176 14 point point NN 40404 176 15 where where WRB 40404 176 16 rocks rock NNS 40404 176 17 disintegrate disintegrate VBP 40404 176 18 and and CC 40404 176 19 decay decay VBP 40404 176 20 under under IN 40404 176 21 the the DT 40404 176 22 action action NN 40404 176 23 of of IN 40404 176 24 the the DT 40404 176 25 weather weather NN 40404 176 26 . . . 40404 177 1 In in IN 40404 177 2 studying study VBG 40404 177 3 now now RB 40404 177 4 a a DT 40404 177 5 few few JJ 40404 177 6 outcrops outcrop NNS 40404 177 7 and and CC 40404 177 8 quarries quarry NNS 40404 177 9 we 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are be VBP 40404 179 5 known know VBN 40404 179 6 as as IN 40404 179 7 _ _ NNP 40404 179 8 strata strata NN 40404 179 9 _ _ NNP 40404 179 10 , , , 40404 179 11 and and CC 40404 179 12 the the DT 40404 179 13 thin thin JJ 40404 179 14 leaves leave NNS 40404 179 15 into into IN 40404 179 16 which which WDT 40404 179 17 each each DT 40404 179 18 stratum stratum NN 40404 179 19 may may MD 40404 179 20 sometimes sometimes RB 40404 179 21 be be VB 40404 179 22 split split VBN 40404 179 23 are be VBP 40404 179 24 termed term VBN 40404 179 25 _ _ NNP 40404 179 26 laminæ laminæ NN 40404 179 27 _ _ NNP 40404 179 28 . . . 40404 180 1 To to IN 40404 180 2 a a DT 40404 180 3 greater great JJR 40404 180 4 or or CC 40404 180 5 less less JJR 40404 180 6 degree degree NN 40404 180 7 these these DT 40404 180 8 layers layer NNS 40404 180 9 differ differ VBP 40404 180 10 from from IN 40404 180 11 each each DT 40404 180 12 other other JJ 40404 180 13 in in IN 40404 180 14 fineness fineness NN 40404 180 15 of of IN 40404 180 16 grain grain NN 40404 180 17 , , , 40404 180 18 showing show VBG 40404 180 19 that that IN 40404 180 20 the the DT 40404 180 21 material material NN 40404 180 22 has have VBZ 40404 180 23 been be VBN 40404 180 24 sorted sort VBN 40404 180 25 . . . 40404 181 1 The the DT 40404 181 2 planes plane NNS 40404 181 3 which which WDT 40404 181 4 divide divide VBP 40404 181 5 them -PRON- PRP 40404 181 6 are be VBP 40404 181 7 called call VBN 40404 181 8 _ _ NNP 40404 181 9 bedding bed VBG 40404 181 10 planes plane NNS 40404 181 11 _ _ NNP 40404 181 12 . . . 40404 182 1 Besides besides IN 40404 182 2 the the DT 40404 182 3 bedding bedding NN 40404 182 4 planes plane NNS 40404 182 5 there there EX 40404 182 6 are be VBP 40404 182 7 other other JJ 40404 182 8 division division NN 40404 182 9 planes plane NNS 40404 182 10 , , , 40404 182 11 which which WDT 40404 182 12 cut cut VBD 40404 182 13 across across IN 40404 182 14 the the DT 40404 182 15 strata strata NN 40404 182 16 from from IN 40404 182 17 top top NN 40404 182 18 to to IN 40404 182 19 bottom bottom NN 40404 182 20 . . . 40404 183 1 These these DT 40404 183 2 are be VBP 40404 183 3 found find VBN 40404 183 4 in in IN 40404 183 5 all all DT 40404 183 6 rocks rock NNS 40404 183 7 and and CC 40404 183 8 are be VBP 40404 183 9 known know VBN 40404 183 10 as as IN 40404 183 11 _ _ NNP 40404 183 12 joints joint NNS 40404 183 13 _ _ NNP 40404 183 14 ( ( -LRB- 40404 183 15 Fig Fig NNP 40404 183 16 . . . 40404 184 1 1 1 LS 40404 184 2 ) ) -RRB- 40404 184 3 . . . 40404 185 1 Two two CD 40404 185 2 sets set NNS 40404 185 3 of of IN 40404 185 4 joints joint NNS 40404 185 5 , , , 40404 185 6 running run VBG 40404 185 7 at at IN 40404 185 8 about about IN 40404 185 9 right right JJ 40404 185 10 angles angle NNS 40404 185 11 to to IN 40404 185 12 each each DT 40404 185 13 other other JJ 40404 185 14 , , , 40404 185 15 together together RB 40404 185 16 with with IN 40404 185 17 the the DT 40404 185 18 bedding 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like IN 40404 188 22 those those DT 40404 188 23 of of IN 40404 188 24 river river NN 40404 188 25 sand sand NN 40404 188 26 or or CC 40404 188 27 of of IN 40404 188 28 sea sea NN 40404 188 29 beaches beach NNS 40404 188 30 . . . 40404 189 1 Most Most JJS 40404 189 2 of of IN 40404 189 3 the the DT 40404 189 4 grains grain NNS 40404 189 5 are be VBP 40404 189 6 of of IN 40404 189 7 a a DT 40404 189 8 clear clear JJ 40404 189 9 glassy glassy NN 40404 189 10 mineral mineral NN 40404 189 11 called call VBN 40404 189 12 quartz quartz NNP 40404 189 13 . . . 40404 190 1 These these DT 40404 190 2 quartz quartz NN 40404 190 3 grains grain NNS 40404 190 4 are be VBP 40404 190 5 very very RB 40404 190 6 hard hard JJ 40404 190 7 and and CC 40404 190 8 will will MD 40404 190 9 scratch scratch VB 40404 190 10 the the DT 40404 190 11 steel steel NN 40404 190 12 of of IN 40404 190 13 a a DT 40404 190 14 knife knife NN 40404 190 15 blade blade NN 40404 190 16 . . . 40404 191 1 They -PRON- PRP 40404 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JJ 40404 193 11 carbonate carbonate NN 40404 193 12 of of IN 40404 193 13 lime lime NN 40404 193 14 . . . 40404 194 1 In in IN 40404 194 2 brown brown JJ 40404 194 3 sandstones sandstone VBZ 40404 194 4 the the DT 40404 194 5 cement cement NN 40404 194 6 is be VBZ 40404 194 7 commonly commonly RB 40404 194 8 _ _ NNP 40404 194 9 ferruginous_,--hydrated ferruginous_,--hydrate VBN 40404 194 10 iron iron NN 40404 194 11 oxide oxide NN 40404 194 12 , , , 40404 194 13 or or CC 40404 194 14 iron iron NN 40404 194 15 rust rust NN 40404 194 16 , , , 40404 194 17 forming form VBG 40404 194 18 the the DT 40404 194 19 bond bond NN 40404 194 20 , , , 40404 194 21 somewhat somewhat RB 40404 194 22 as as IN 40404 194 23 in in IN 40404 194 24 the the DT 40404 194 25 case case NN 40404 194 26 of of IN 40404 194 27 iron iron NN 40404 194 28 nails nail NNS 40404 194 29 which which WDT 40404 194 30 have have VBP 40404 194 31 rusted rust VBN 40404 194 32 together together RB 40404 194 33 . . . 40404 195 1 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40404 200 21 stone stone NN 40404 200 22 also also RB 40404 200 23 made make VBN 40404 200 24 of of IN 40404 200 25 sand sand NN 40404 200 26 cemented cement VBN 40404 200 27 by by IN 40404 200 28 lime lime NN 40404 200 29 , , , 40404 200 30 may may MD 40404 200 31 be be VB 40404 200 32 treated treat VBN 40404 200 33 in in IN 40404 200 34 a a DT 40404 200 35 test test NN 40404 200 36 tube tube NN 40404 200 37 with with IN 40404 200 38 hydrochloric hydrochloric JJ 40404 200 39 acid acid NN 40404 200 40 to to TO 40404 200 41 illustrate illustrate VB 40404 200 42 the the DT 40404 200 43 process process NN 40404 200 44 . . . 40404 201 1 [ [ -LRB- 40404 201 2 Illustration illustration NN 40404 201 3 : : : 40404 201 4 Fig Fig NNP 40404 201 5 . . . 40404 202 1 2 2 LS 40404 202 2 . . . 40404 203 1 Section section NN 40404 203 2 of of IN 40404 203 3 Limestone Limestone NNP 40404 203 4 Quarry Quarry NNP 40404 203 5 Scale Scale NNP 40404 203 6 , , , 40404 203 7 1 1 CD 40404 203 8 in in IN 40404 203 9 . . . 40404 204 1 = = NFP 40404 204 2 30 30 CD 40404 204 3 ft ft NN 40404 204 4 . . NNP 40404 204 5 _ _ NNP 40404 204 6 a a DT 40404 204 7 _ _ NNP 40404 204 8 , , , 40404 204 9 red red JJ 40404 204 10 residual residual JJ 40404 204 11 clay clay NN 40404 204 12 ; ; : 40404 204 13 _ _ NNP 40404 204 14 mn mn NNP 40404 204 15 _ _ NNP 40404 204 16 , , , 40404 204 17 pitted pit VBN 40404 204 18 surface surface NN 40404 204 19 of of IN 40404 204 20 rotted rot VBN 40404 204 21 limestone limestone NN 40404 204 22 ; ; : 40404 204 23 _ _ NNP 40404 204 24 bb bb NNP 40404 204 25 _ _ NNP 40404 204 26 , , , 40404 204 27 limestone limestone NN 40404 204 28 divided divide VBD 40404 204 29 into into IN 40404 204 30 thin thin JJ 40404 204 31 layers layer NNS 40404 204 32 ; ; : 40404 204 33 _ _ NNP 40404 204 34 c c NNP 40404 204 35 _ _ NNP 40404 204 36 , , , 40404 204 37 thick thick JJ 40404 204 38 layers layer NNS 40404 204 39 of of IN 40404 204 40 laminated laminate VBN 40404 204 41 limestone limestone NNP 40404 204 42 , , , 40404 204 43 the the DT 40404 204 44 laminæ laminæ NN 40404 204 45 being be VBG 40404 204 46 firmly firmly RB 40404 204 47 cemented cement VBN 40404 204 48 together together RB 40404 204 49 ; ; : 40404 204 50 _ _ NNP 40404 204 51 j j NNP 40404 204 52 _ _ NNP 40404 204 53 , , , 40404 204 54 _ _ NNP 40404 204 55 j j NNP 40404 204 56 _ _ NNP 40404 204 57 , , , 40404 204 58 _ _ NNP 40404 204 59 j j NNP 40404 204 60 _ _ NNP 40404 204 61 , , , 40404 204 62 joints joint NNS 40404 204 63 . . . 40404 205 1 Is be VBZ 40404 205 2 _ _ NNP 40404 205 3 bb bb NNP 40404 205 4 _ _ NNP 40404 205 5 thin thin JJ 40404 205 6 - - HYPH 40404 205 7 layered layered JJ 40404 205 8 because because IN 40404 205 9 originally originally RB 40404 205 10 so so RB 40404 205 11 laid lay VBN 40404 205 12 , , , 40404 205 13 or or CC 40404 205 14 because because IN 40404 205 15 it -PRON- PRP 40404 205 16 has have VBZ 40404 205 17 been be VBN 40404 205 18 broken break VBN 40404 205 19 up up RP 40404 205 20 by by IN 40404 205 21 weathering weather VBG 40404 205 22 , , , 40404 205 23 although although IN 40404 205 24 once once RB 40404 205 25 like like UH 40404 205 26 _ _ NNP 40404 205 27 c c NNP 40404 205 28 _ _ NNP 40404 205 29 thick thick JJ 40404 205 30 - - HYPH 40404 205 31 layered layered JJ 40404 205 32 ? ? . 40404 205 33 ] ] -RRB- 40404 206 1 A a DT 40404 206 2 limestone limestone NN 40404 206 3 quarry quarry NN 40404 206 4 . . . 40404 207 1 Here here RB 40404 207 2 also also RB 40404 207 3 we -PRON- PRP 40404 207 4 find find VBP 40404 207 5 the the DT 40404 207 6 rock rock NN 40404 207 7 stratified stratify VBN 40404 207 8 and and CC 40404 207 9 jointed jointed JJ 40404 207 10 ( ( -LRB- 40404 207 11 Fig fig NN 40404 207 12 . . . 40404 208 1 2 2 LS 40404 208 2 ) ) -RRB- 40404 208 3 . . . 40404 209 1 On on IN 40404 209 2 the the DT 40404 209 3 quarry quarry NN 40404 209 4 face face VB 40404 209 5 the the DT 40404 209 6 rock rock NN 40404 209 7 is be VBZ 40404 209 8 distinctly distinctly RB 40404 209 9 seen see VBN 40404 209 10 to to TO 40404 209 11 be be VB 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210 30 purpose purpose NN 40404 210 31 . . . 40404 211 1 If if IN 40404 211 2 the the DT 40404 211 3 limestone limestone NN 40404 211 4 is be VBZ 40404 211 5 laminated laminate VBN 40404 211 6 , , , 40404 211 7 the the DT 40404 211 8 laminae laminae NN 40404 211 9 here here RB 40404 211 10 have have VBP 40404 211 11 split split VBN 40404 211 12 apart apart RB 40404 211 13 , , , 40404 211 14 although although IN 40404 211 15 below below IN 40404 211 16 they -PRON- PRP 40404 211 17 hold hold VBP 40404 211 18 fast fast RB 40404 211 19 together together RB 40404 211 20 . . . 40404 212 1 Near near IN 40404 212 2 the the DT 40404 212 3 surface surface NN 40404 212 4 the the DT 40404 212 5 stone stone NN 40404 212 6 has have VBZ 40404 212 7 become become VBN 40404 212 8 rotten rotten JJ 40404 212 9 and and CC 40404 212 10 crumbles crumble NNS 40404 212 11 at at IN 40404 212 12 the the DT 40404 212 13 touch touch NN 40404 212 14 , , , 40404 212 15 while while IN 40404 212 16 on on IN 40404 212 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16 a a DT 40404 213 17 calcareous calcareous JJ 40404 213 18 cement cement NN 40404 213 19 . . . 40404 214 1 A a DT 40404 214 2 piece piece NN 40404 214 3 of of IN 40404 214 4 the the DT 40404 214 5 stone stone NN 40404 214 6 placed place VBN 40404 214 7 in in IN 40404 214 8 a a DT 40404 214 9 test test NN 40404 214 10 tube tube NN 40404 214 11 with with IN 40404 214 12 hydrochloric hydrochloric JJ 40404 214 13 acid acid NN 40404 214 14 dissolves dissolve NNS 40404 214 15 with with IN 40404 214 16 brisk brisk JJ 40404 214 17 effervescence effervescence NN 40404 214 18 , , , 40404 214 19 leaving leave VBG 40404 214 20 the the DT 40404 214 21 insoluble insoluble JJ 40404 214 22 impurities impurity NNS 40404 214 23 , , , 40404 214 24 which which WDT 40404 214 25 were be VBD 40404 214 26 disseminated disseminate VBN 40404 214 27 through through IN 40404 214 28 it -PRON- PRP 40404 214 29 , , , 40404 214 30 at at IN 40404 214 31 the the DT 40404 214 32 bottom bottom NN 40404 214 33 of of IN 40404 214 34 the the DT 40404 214 35 tube tube NN 40404 214 36 as as IN 40404 214 37 a a DT 40404 214 38 little little JJ 40404 214 39 clay clay NN 40404 214 40 . . . 40404 215 1 We -PRON- PRP 40404 215 2 can can MD 40404 215 3 now now RB 40404 215 4 understand understand VB 40404 215 5 the the DT 40404 215 6 changes change NNS 40404 215 7 in in IN 40404 215 8 the the DT 40404 215 9 upper upper JJ 40404 215 10 layers layer NNS 40404 215 11 of of IN 40404 215 12 the the DT 40404 215 13 quarry quarry NN 40404 215 14 . . . 40404 216 1 At at IN 40404 216 2 the the DT 40404 216 3 surface surface NN 40404 216 4 of of IN 40404 216 5 the the DT 40404 216 6 rock rock NN 40404 216 7 the the DT 40404 216 8 limestone limestone NN 40404 216 9 has have VBZ 40404 216 10 completely completely RB 40404 216 11 dissolved dissolve VBN 40404 216 12 , , , 40404 216 13 leaving leave VBG 40404 216 14 the the DT 40404 216 15 insoluble insoluble JJ 40404 216 16 residue residue NN 40404 216 17 as as IN 40404 216 18 a a DT 40404 216 19 layer layer NN 40404 216 20 of of IN 40404 216 21 reddish reddish JJ 40404 216 22 clay clay NN 40404 216 23 . . . 40404 217 1 Immediately immediately RB 40404 217 2 below below IN 40404 217 3 the the DT 40404 217 4 clay clay NN 40404 217 5 the the DT 40404 217 6 rock rock NN 40404 217 7 has have VBZ 40404 217 8 disintegrated disintegrate VBN 40404 217 9 into into IN 40404 217 10 meal meal NN 40404 217 11 where where WRB 40404 217 12 the the DT 40404 217 13 cement cement NN 40404 217 14 between between IN 40404 217 15 the the DT 40404 217 16 limestone limestone NN 40404 217 17 grains grain NNS 40404 217 18 has have VBZ 40404 217 19 been be VBN 40404 217 20 removed remove VBN 40404 217 21 , , , 40404 217 22 while while IN 40404 217 23 beneath beneath IN 40404 217 24 this this DT 40404 217 25 the the DT 40404 217 26 laminae laminae NN 40404 217 27 are be VBP 40404 217 28 split split VBN 40404 217 29 apart apart RB 40404 217 30 where where WRB 40404 217 31 the the DT 40404 217 32 cement cement NN 40404 217 33 has have VBZ 40404 217 34 been be VBN 40404 217 35 dissolved dissolve VBN 40404 217 36 only only RB 40404 217 37 along along IN 40404 217 38 the the DT 40404 217 39 planes plane NNS 40404 217 40 of of IN 40404 217 41 lamination lamination NN 40404 217 42 where where WRB 40404 217 43 the the DT 40404 217 44 stone stone NN 40404 217 45 is be VBZ 40404 217 46 more more RBR 40404 217 47 porous porous JJ 40404 217 48 . . . 40404 218 1 As as IN 40404 218 2 these these DT 40404 218 3 changes change NNS 40404 218 4 in in IN 40404 218 5 the the DT 40404 218 6 rock rock NN 40404 218 7 are be VBP 40404 218 8 greatest great JJS 40404 218 9 at at IN 40404 218 10 the the DT 40404 218 11 surface surface NN 40404 218 12 and and CC 40404 218 13 diminish diminish VB 40404 218 14 downward downward RB 40404 218 15 , , , 40404 218 16 we -PRON- PRP 40404 218 17 infer infer VBP 40404 218 18 that that IN 40404 218 19 they -PRON- PRP 40404 218 20 have have VBP 40404 218 21 been be VBN 40404 218 22 caused cause VBN 40404 218 23 by by IN 40404 218 24 agents agent NNS 40404 218 25 working work VBG 40404 218 26 downward downward RB 40404 218 27 from from IN 40404 218 28 the the DT 40404 218 29 surface surface NN 40404 218 30 . . . 40404 219 1 At at IN 40404 219 2 certain certain JJ 40404 219 3 points point NNS 40404 219 4 these these DT 40404 219 5 agencies agency NNS 40404 219 6 have have VBP 40404 219 7 been be VBN 40404 219 8 more more RBR 40404 219 9 effective effective JJ 40404 219 10 than than IN 40404 219 11 elsewhere elsewhere RB 40404 219 12 . . . 40404 220 1 The the DT 40404 220 2 upper upper JJ 40404 220 3 rock rock NN 40404 220 4 surface surface NN 40404 220 5 is be VBZ 40404 220 6 pitted pit VBN 40404 220 7 . . . 40404 221 1 Joints joint NNS 40404 221 2 are be VBP 40404 221 3 widened widen VBN 40404 221 4 as as IN 40404 221 5 they -PRON- PRP 40404 221 6 approach approach VBP 40404 221 7 the the DT 40404 221 8 surface surface NN 40404 221 9 , , , 40404 221 10 and and CC 40404 221 11 along along IN 40404 221 12 these these DT 40404 221 13 seams seam NNS 40404 221 14 we -PRON- PRP 40404 221 15 may may MD 40404 221 16 find find VB 40404 221 17 that that IN 40404 221 18 the the DT 40404 221 19 rock rock NN 40404 221 20 is be VBZ 40404 221 21 altered alter VBN 40404 221 22 even even RB 40404 221 23 down down RB 40404 221 24 to to IN 40404 221 25 the the DT 40404 221 26 quarry quarry JJ 40404 221 27 floor floor NN 40404 221 28 . . . 40404 222 1 = = NFP 40404 222 2 A a DT 40404 222 3 shale shale JJ 40404 222 4 pit.= pit.= NN 40404 222 5 Let let VB 40404 222 6 us -PRON- PRP 40404 222 7 now now RB 40404 222 8 visit visit VB 40404 222 9 some some DT 40404 222 10 pit pit NN 40404 222 11 where where WRB 40404 222 12 shale shale NNP 40404 222 13 -- -- : 40404 222 14 a a DT 40404 222 15 laminated laminated JJ 40404 222 16 and and CC 40404 222 17 somewhat somewhat RB 40404 222 18 hardened harden VBN 40404 222 19 clay clay NN 40404 222 20 -- -- : 40404 222 21 is be VBZ 40404 222 22 quarried quarried JJ 40404 222 23 for for IN 40404 222 24 the the DT 40404 222 25 manufacture manufacture NN 40404 222 26 of of IN 40404 222 27 brick brick NN 40404 222 28 . . . 40404 223 1 The the DT 40404 223 2 laminae laminae NN 40404 223 3 of of IN 40404 223 4 this this DT 40404 223 5 fine fine JJ 40404 223 6 - - HYPH 40404 223 7 grained grain VBN 40404 223 8 rock rock NN 40404 223 9 may may MD 40404 223 10 be be VB 40404 223 11 as as RB 40404 223 12 thin thin JJ 40404 223 13 as as IN 40404 223 14 cardboard cardboard NN 40404 223 15 in in IN 40404 223 16 places place NNS 40404 223 17 , , , 40404 223 18 and and CC 40404 223 19 close close JJ 40404 223 20 joints joint NNS 40404 223 21 may may MD 40404 223 22 break break VB 40404 223 23 the the DT 40404 223 24 rock rock NN 40404 223 25 into into IN 40404 223 26 small small JJ 40404 223 27 rhombic rhombic JJ 40404 223 28 blocks block NNS 40404 223 29 . . . 40404 224 1 On on IN 40404 224 2 the the DT 40404 224 3 upper upper JJ 40404 224 4 surface surface NN 40404 224 5 we -PRON- PRP 40404 224 6 note note VBP 40404 224 7 that that IN 40404 224 8 the the DT 40404 224 9 shale shale NNP 40404 224 10 has have VBZ 40404 224 11 weathered weather VBN 40404 224 12 to to IN 40404 224 13 a a DT 40404 224 14 clayey clayey JJ 40404 224 15 soil soil NN 40404 224 16 in in IN 40404 224 17 which which WDT 40404 224 18 all all DT 40404 224 19 traces trace NNS 40404 224 20 of of IN 40404 224 21 structure structure NN 40404 224 22 have have VBP 40404 224 23 been be VBN 40404 224 24 destroyed destroy VBN 40404 224 25 . . . 40404 225 1 The the DT 40404 225 2 clay clay NN 40404 225 3 and and CC 40404 225 4 the the DT 40404 225 5 upper upper JJ 40404 225 6 layers layer NNS 40404 225 7 of of IN 40404 225 8 the the DT 40404 225 9 shale shale NN 40404 225 10 beneath beneath IN 40404 225 11 it -PRON- PRP 40404 225 12 are be VBP 40404 225 13 reddish reddish JJ 40404 225 14 or or CC 40404 225 15 yellow yellow JJ 40404 225 16 , , , 40404 225 17 while while IN 40404 225 18 in in IN 40404 225 19 many many JJ 40404 225 20 cases case NNS 40404 225 21 the the DT 40404 225 22 color color NN 40404 225 23 of of IN 40404 225 24 the the DT 40404 225 25 unaltered unaltered JJ 40404 225 26 rock rock NN 40404 225 27 beneath beneath IN 40404 225 28 is be VBZ 40404 225 29 blue blue JJ 40404 225 30 . . . 40404 226 1 = = NFP 40404 226 2 The the DT 40404 226 3 sedimentary sedimentary JJ 40404 226 4 rocks.= rocks.= CD 40404 226 5 The the DT 40404 226 6 three three CD 40404 226 7 kinds kind NNS 40404 226 8 of of IN 40404 226 9 layered layered JJ 40404 226 10 rocks rock NNS 40404 226 11 whose whose WP$ 40404 226 12 acquaintance acquaintance NN 40404 226 13 we -PRON- PRP 40404 226 14 have have VBP 40404 226 15 made make VBN 40404 226 16 -- -- : 40404 226 17 sandstone sandstone NN 40404 226 18 , , , 40404 226 19 limestone limestone NN 40404 226 20 , , , 40404 226 21 and and CC 40404 226 22 shale shale NNP 40404 226 23 -- -- : 40404 226 24 are be VBP 40404 226 25 the the DT 40404 226 26 leading lead VBG 40404 226 27 types type NNS 40404 226 28 of of IN 40404 226 29 the the DT 40404 226 30 great great JJ 40404 226 31 group group NN 40404 226 32 of of IN 40404 226 33 stratified stratified JJ 40404 226 34 , , , 40404 226 35 or or CC 40404 226 36 sedimentary sedimentary JJ 40404 226 37 , , , 40404 226 38 rocks rock NNS 40404 226 39 . . . 40404 227 1 This this DT 40404 227 2 group group NN 40404 227 3 includes include VBZ 40404 227 4 all all DT 40404 227 5 rocks rock NNS 40404 227 6 made make VBN 40404 227 7 of of IN 40404 227 8 sediments sediment NNS 40404 227 9 , , , 40404 227 10 their -PRON- PRP$ 40404 227 11 materials material NNS 40404 227 12 having have VBG 40404 227 13 settled settle VBN 40404 227 14 either either CC 40404 227 15 in in IN 40404 227 16 water water NN 40404 227 17 upon upon IN 40404 227 18 the the DT 40404 227 19 bottoms bottom NNS 40404 227 20 of of IN 40404 227 21 rivers river NNS 40404 227 22 , , , 40404 227 23 lakes lake NNS 40404 227 24 , , , 40404 227 25 or or CC 40404 227 26 seas sea NNS 40404 227 27 , , , 40404 227 28 or or CC 40404 227 29 on on IN 40404 227 30 dry dry JJ 40404 227 31 land land NN 40404 227 32 , , , 40404 227 33 as as IN 40404 227 34 in in IN 40404 227 35 the the DT 40404 227 36 case case NN 40404 227 37 of of IN 40404 227 38 deposits deposit NNS 40404 227 39 made make VBN 40404 227 40 by by IN 40404 227 41 the the DT 40404 227 42 wind wind NN 40404 227 43 and and CC 40404 227 44 by by IN 40404 227 45 glaciers glacier NNS 40404 227 46 . . . 40404 228 1 Sedimentary sedimentary JJ 40404 228 2 rocks rock NNS 40404 228 3 are be VBP 40404 228 4 divided divide VBN 40404 228 5 into into IN 40404 228 6 the the DT 40404 228 7 fragmental fragmental JJ 40404 228 8 rocks rock NNS 40404 228 9 -- -- : 40404 228 10 which which WDT 40404 228 11 are be VBP 40404 228 12 made make VBN 40404 228 13 of of IN 40404 228 14 fragments fragment NNS 40404 228 15 , , , 40404 228 16 either either CC 40404 228 17 coarse coarse JJ 40404 228 18 or or CC 40404 228 19 fine fine JJ 40404 228 20 -- -- : 40404 228 21 and and CC 40404 228 22 the the DT 40404 228 23 far far RB 40404 228 24 less less RBR 40404 228 25 common common JJ 40404 228 26 rocks rock NNS 40404 228 27 which which WDT 40404 228 28 are be VBP 40404 228 29 constituted constitute VBN 40404 228 30 of of IN 40404 228 31 chemical chemical JJ 40404 228 32 precipitates precipitate NNS 40404 228 33 . . . 40404 229 1 [ [ -LRB- 40404 229 2 Illustration illustration NN 40404 229 3 : : : 40404 229 4 Fig Fig NNP 40404 229 5 . . . 40404 230 1 3 3 LS 40404 230 2 . . . 40404 231 1 Conglomerate conglomerate NN 40404 231 2 ] ] -RRB- 40404 231 3 The the DT 40404 231 4 sedimentary sedimentary JJ 40404 231 5 rocks rock NNS 40404 231 6 are be VBP 40404 231 7 divided divide VBN 40404 231 8 according accord VBG 40404 231 9 to to IN 40404 231 10 their -PRON- PRP$ 40404 231 11 composition composition NN 40404 231 12 into into IN 40404 231 13 the the DT 40404 231 14 following follow VBG 40404 231 15 classes class NNS 40404 231 16 : : : 40404 231 17 1 1 CD 40404 231 18 . . . 40404 232 1 The the DT 40404 232 2 arenaceous arenaceous JJ 40404 232 3 , , , 40404 232 4 or or CC 40404 232 5 quartz quartz NN 40404 232 6 rocks rock NNS 40404 232 7 , , , 40404 232 8 including include VBG 40404 232 9 beds bed NNS 40404 232 10 of of IN 40404 232 11 loose loose JJ 40404 232 12 sand sand NN 40404 232 13 and and CC 40404 232 14 gravel gravel NN 40404 232 15 , , , 40404 232 16 sandstone sandstone NN 40404 232 17 , , , 40404 232 18 quartzite quartzite NN 40404 232 19 , , , 40404 232 20 and and CC 40404 232 21 conglomerate conglomerate NN 40404 232 22 ( ( -LRB- 40404 232 23 a a DT 40404 232 24 rock rock NN 40404 232 25 made make VBN 40404 232 26 of of IN 40404 232 27 cemented cemented JJ 40404 232 28 rounded rounded JJ 40404 232 29 gravel gravel NN 40404 232 30 or or CC 40404 232 31 pebbles pebble NNS 40404 232 32 ) ) -RRB- 40404 232 33 . . . 40404 233 1 2 2 LS 40404 233 2 . . . 40404 234 1 The the DT 40404 234 2 calcareous calcareous JJ 40404 234 3 , , , 40404 234 4 or or CC 40404 234 5 lime lime NN 40404 234 6 rocks rock NNS 40404 234 7 , , , 40404 234 8 including include VBG 40404 234 9 limestone limestone NN 40404 234 10 and and CC 40404 234 11 a a DT 40404 234 12 soft soft JJ 40404 234 13 white white JJ 40404 234 14 rock rock NN 40404 234 15 formed form VBN 40404 234 16 of of IN 40404 234 17 calcareous calcareous JJ 40404 234 18 powder powder NN 40404 234 19 known know VBN 40404 234 20 as as IN 40404 234 21 chalk chalk NN 40404 234 22 . . . 40404 235 1 3 3 LS 40404 235 2 . . . 40404 236 1 The the DT 40404 236 2 argillaceous argillaceous JJ 40404 236 3 , , , 40404 236 4 or or CC 40404 236 5 clay clay NN 40404 236 6 rocks rock NNS 40404 236 7 , , , 40404 236 8 including include VBG 40404 236 9 muds mud NNS 40404 236 10 , , , 40404 236 11 clays clay NNS 40404 236 12 , , , 40404 236 13 and and CC 40404 236 14 shales shale NNS 40404 236 15 . . . 40404 237 1 These these DT 40404 237 2 three three CD 40404 237 3 classes class NNS 40404 237 4 pass pass VBP 40404 237 5 by by IN 40404 237 6 mixture mixture NN 40404 237 7 into into IN 40404 237 8 one one CD 40404 237 9 another another DT 40404 237 10 . . . 40404 238 1 Thus thus RB 40404 238 2 there there EX 40404 238 3 are be VBP 40404 238 4 limy limy NNP 40404 238 5 and and CC 40404 238 6 clayey clayey NNP 40404 238 7 sandstones sandstones NNP 40404 238 8 , , , 40404 238 9 sandy sandy NNP 40404 238 10 and and CC 40404 238 11 clayey clayey NNP 40404 238 12 limestones limestone NNS 40404 238 13 , , , 40404 238 14 and and CC 40404 238 15 sandy sandy NNP 40404 238 16 and and CC 40404 238 17 limy limy NNP 40404 238 18 shales shale NNS 40404 238 19 . . . 40404 239 1 = = NFP 40404 239 2 Granite.= Granite.= NNP 40404 239 3 This this DT 40404 239 4 familiar familiar JJ 40404 239 5 rock rock NN 40404 239 6 may may MD 40404 239 7 be be VB 40404 239 8 studied study VBN 40404 239 9 as as IN 40404 239 10 an an DT 40404 239 11 example example NN 40404 239 12 of of IN 40404 239 13 the the DT 40404 239 14 second second JJ 40404 239 15 great great JJ 40404 239 16 group group NN 40404 239 17 of of IN 40404 239 18 rocks,--_the rocks,--_the NNP 40404 239 19 unstratified unstratified JJ 40404 239 20 _ _ NNP 40404 239 21 , , , 40404 239 22 or or CC 40404 239 23 _ _ NNP 40404 239 24 igneous igneous JJ 40404 239 25 rocks rock NNS 40404 239 26 _ _ NNP 40404 239 27 . . . 40404 240 1 These these DT 40404 240 2 are be VBP 40404 240 3 not not RB 40404 240 4 made make VBN 40404 240 5 of of IN 40404 240 6 cemented cemented JJ 40404 240 7 sedimentary sedimentary JJ 40404 240 8 grains grain NNS 40404 240 9 , , , 40404 240 10 but but CC 40404 240 11 of of IN 40404 240 12 interlocking interlock VBG 40404 240 13 crystals crystal NNS 40404 240 14 which which WDT 40404 240 15 have have VBP 40404 240 16 crystallized crystallize VBN 40404 240 17 from from IN 40404 240 18 a a DT 40404 240 19 molten molten JJ 40404 240 20 mass mass NN 40404 240 21 . . . 40404 241 1 Examining examine VBG 40404 241 2 a a DT 40404 241 3 piece piece NN 40404 241 4 of of IN 40404 241 5 granite granite NN 40404 241 6 , , , 40404 241 7 the the DT 40404 241 8 most most RBS 40404 241 9 conspicuous conspicuous JJ 40404 241 10 crystals crystal NNS 40404 241 11 which which WDT 40404 241 12 meet meet VBP 40404 241 13 the the DT 40404 241 14 eye eye NN 40404 241 15 are be VBP 40404 241 16 those those DT 40404 241 17 of of IN 40404 241 18 feldspar feldspar NN 40404 241 19 . . . 40404 242 1 They -PRON- PRP 40404 242 2 are be VBP 40404 242 3 commonly commonly RB 40404 242 4 pink pink JJ 40404 242 5 , , , 40404 242 6 white white JJ 40404 242 7 , , , 40404 242 8 or or CC 40404 242 9 yellow yellow JJ 40404 242 10 , , , 40404 242 11 and and CC 40404 242 12 break break VB 40404 242 13 along along RP 40404 242 14 smooth smooth JJ 40404 242 15 cleavage cleavage NN 40404 242 16 planes plane NNS 40404 242 17 which which WDT 40404 242 18 reflect reflect VBP 40404 242 19 the the DT 40404 242 20 light light NN 40404 242 21 like like IN 40404 242 22 tiny tiny JJ 40404 242 23 panes pane NNS 40404 242 24 of of IN 40404 242 25 glass glass NN 40404 242 26 . . . 40404 243 1 Mica Mica NNP 40404 243 2 may may MD 40404 243 3 be be VB 40404 243 4 recognized recognize VBN 40404 243 5 by by IN 40404 243 6 its -PRON- PRP$ 40404 243 7 glittering glitter VBG 40404 243 8 plates plate NNS 40404 243 9 , , , 40404 243 10 which which WDT 40404 243 11 split split VBD 40404 243 12 into into IN 40404 243 13 thin thin JJ 40404 243 14 elastic elastic JJ 40404 243 15 scales scale NNS 40404 243 16 . . . 40404 244 1 A a DT 40404 244 2 third third JJ 40404 244 3 mineral mineral NN 40404 244 4 , , , 40404 244 5 harder hard JJR 40404 244 6 than than IN 40404 244 7 steel steel NN 40404 244 8 , , , 40404 244 9 breaking break VBG 40404 244 10 along along IN 40404 244 11 irregular irregular JJ 40404 244 12 surfaces surface NNS 40404 244 13 like like IN 40404 244 14 broken broken JJ 40404 244 15 glass glass NN 40404 244 16 , , , 40404 244 17 we -PRON- PRP 40404 244 18 identify identify VBP 40404 244 19 as as IN 40404 244 20 quartz quartz NN 40404 244 21 . . . 40404 245 1 How how WRB 40404 245 2 granite granite NN 40404 245 3 alters alter NNS 40404 245 4 under under IN 40404 245 5 the the DT 40404 245 6 action action NN 40404 245 7 of of IN 40404 245 8 the the DT 40404 245 9 weather weather NN 40404 245 10 may may MD 40404 245 11 be be VB 40404 245 12 seen see VBN 40404 245 13 in in IN 40404 245 14 outcrops outcrop NNS 40404 245 15 where where WRB 40404 245 16 it -PRON- PRP 40404 245 17 forms form VBZ 40404 245 18 the the DT 40404 245 19 bed bed NN 40404 245 20 rock rock NN 40404 245 21 , , , 40404 245 22 or or CC 40404 245 23 country country NN 40404 245 24 rock rock NN 40404 245 25 , , , 40404 245 26 underlying underlie VBG 40404 245 27 the the DT 40404 245 28 loose loose JJ 40404 245 29 formations formation NNS 40404 245 30 of of IN 40404 245 31 the the DT 40404 245 32 surface surface NN 40404 245 33 , , , 40404 245 34 and and CC 40404 245 35 in in IN 40404 245 36 many many JJ 40404 245 37 parts part NNS 40404 245 38 of of IN 40404 245 39 the the DT 40404 245 40 northern northern JJ 40404 245 41 states state NNS 40404 245 42 where where WRB 40404 245 43 granite granite NN 40404 245 44 bowlders bowlder NNS 40404 245 45 and and CC 40404 245 46 pebbles pebble VBZ 40404 245 47 more more RBR 40404 245 48 or or CC 40404 245 49 less less RBR 40404 245 50 decayed decayed JJ 40404 245 51 may may MD 40404 245 52 be be VB 40404 245 53 found find VBN 40404 245 54 in in IN 40404 245 55 a a DT 40404 245 56 surface surface NN 40404 245 57 sheet sheet NN 40404 245 58 of of IN 40404 245 59 stony stony NNP 40404 245 60 clay clay NNP 40404 245 61 called call VBD 40404 245 62 the the DT 40404 245 63 drift drift NN 40404 245 64 . . . 40404 246 1 Of of IN 40404 246 2 the the DT 40404 246 3 different different JJ 40404 246 4 minerals mineral NNS 40404 246 5 composing compose VBG 40404 246 6 granite granite NN 40404 246 7 , , , 40404 246 8 quartz quartz NNP 40404 246 9 alone alone RB 40404 246 10 remains remain VBZ 40404 246 11 unaltered unaltered JJ 40404 246 12 . . . 40404 247 1 Mica Mica NNP 40404 247 2 weathers weather VBZ 40404 247 3 to to IN 40404 247 4 detached detach VBN 40404 247 5 flakes flake NNS 40404 247 6 which which WDT 40404 247 7 have have VBP 40404 247 8 lost lose VBN 40404 247 9 their -PRON- PRP$ 40404 247 10 elasticity elasticity NN 40404 247 11 . . . 40404 248 1 The the DT 40404 248 2 feldspar feldspar NN 40404 248 3 crystals crystal NNS 40404 248 4 have have VBP 40404 248 5 lost lose VBN 40404 248 6 their -PRON- PRP$ 40404 248 7 luster luster NN 40404 248 8 and and CC 40404 248 9 hardness hardness NN 40404 248 10 , , , 40404 248 11 and and CC 40404 248 12 even even RB 40404 248 13 have have VBP 40404 248 14 decayed decay VBN 40404 248 15 to to IN 40404 248 16 clay clay NN 40404 248 17 . . . 40404 249 1 Where where WRB 40404 249 2 long long RB 40404 249 3 - - HYPH 40404 249 4 weathered weather VBN 40404 249 5 granite granite NN 40404 249 6 forms form VBZ 40404 249 7 the the DT 40404 249 8 country country NN 40404 249 9 rock rock NN 40404 249 10 , , , 40404 249 11 it -PRON- PRP 40404 249 12 often often RB 40404 249 13 may may MD 40404 249 14 be be VB 40404 249 15 cut cut VBN 40404 249 16 with with IN 40404 249 17 spade spade NN 40404 249 18 or or CC 40404 249 19 trowel trowel VB 40404 249 20 for for IN 40404 249 21 several several JJ 40404 249 22 feet foot NNS 40404 249 23 from from IN 40404 249 24 the the DT 40404 249 25 surface surface NN 40404 249 26 , , , 40404 249 27 so so RB 40404 249 28 rotten rotten JJ 40404 249 29 is be VBZ 40404 249 30 the the DT 40404 249 31 feldspar feldspar NN 40404 249 32 , , , 40404 249 33 and and CC 40404 249 34 here here RB 40404 249 35 the the DT 40404 249 36 rock rock NN 40404 249 37 is be VBZ 40404 249 38 seen see VBN 40404 249 39 to to TO 40404 249 40 break break VB 40404 249 41 down down RP 40404 249 42 to to IN 40404 249 43 a a DT 40404 249 44 clayey clayey JJ 40404 249 45 soil soil NN 40404 249 46 containing contain VBG 40404 249 47 grains grain NNS 40404 249 48 of of IN 40404 249 49 quartz quartz NN 40404 249 50 and and CC 40404 249 51 flakes flake NNS 40404 249 52 of of IN 40404 249 53 mica mica NNP 40404 249 54 . . . 40404 250 1 These these DT 40404 250 2 are be VBP 40404 250 3 a a DT 40404 250 4 few few JJ 40404 250 5 simple simple JJ 40404 250 6 illustrations illustration NNS 40404 250 7 of of IN 40404 250 8 the the DT 40404 250 9 surface surface NN 40404 250 10 changes change NNS 40404 250 11 which which WDT 40404 250 12 some some DT 40404 250 13 of of IN 40404 250 14 the the DT 40404 250 15 common common JJ 40404 250 16 kinds kind NNS 40404 250 17 of of IN 40404 250 18 rocks rock NNS 40404 250 19 undergo undergo VBP 40404 250 20 . . . 40404 251 1 The the DT 40404 251 2 agencies agency NNS 40404 251 3 by by IN 40404 251 4 which which WDT 40404 251 5 these these DT 40404 251 6 changes change NNS 40404 251 7 are be VBP 40404 251 8 brought bring VBN 40404 251 9 about about RP 40404 251 10 we -PRON- PRP 40404 251 11 will will MD 40404 251 12 now now RB 40404 251 13 take take VB 40404 251 14 up up RP 40404 251 15 under under IN 40404 251 16 two two CD 40404 251 17 divisions,--_chemical divisions,--_chemical JJ 40404 251 18 agencies agency NNS 40404 251 19 _ _ NNP 40404 251 20 producing produce VBG 40404 251 21 rock rock NN 40404 251 22 decay decay NN 40404 251 23 and and CC 40404 251 24 _ _ NNP 40404 251 25 mechanical mechanical JJ 40404 251 26 agencies agency NNS 40404 251 27 _ _ NNP 40404 251 28 producing produce VBG 40404 251 29 rock rock NN 40404 251 30 disintegration disintegration NN 40404 251 31 . . . 40404 252 1 The the DT 40404 252 2 Chemical Chemical NNP 40404 252 3 Work Work NNP 40404 252 4 Of of IN 40404 252 5 Water Water NNP 40404 252 6 As as IN 40404 252 7 water water NN 40404 252 8 falls fall VBZ 40404 252 9 on on IN 40404 252 10 the the DT 40404 252 11 earth earth NN 40404 252 12 in in IN 40404 252 13 rain rain NN 40404 252 14 it -PRON- PRP 40404 252 15 has have VBZ 40404 252 16 already already RB 40404 252 17 absorbed absorb VBN 40404 252 18 from from IN 40404 252 19 the the DT 40404 252 20 air air NN 40404 252 21 carbon carbon NN 40404 252 22 dioxide dioxide NN 40404 252 23 ( ( -LRB- 40404 252 24 carbonic carbonic JJ 40404 252 25 acid acid NN 40404 252 26 gas gas NN 40404 252 27 ) ) -RRB- 40404 252 28 and and CC 40404 252 29 oxygen oxygen NN 40404 252 30 . . . 40404 253 1 As as IN 40404 253 2 it -PRON- PRP 40404 253 3 sinks sink VBZ 40404 253 4 into into IN 40404 253 5 the the DT 40404 253 6 ground ground NN 40404 253 7 and and CC 40404 253 8 becomes become VBZ 40404 253 9 what what WP 40404 253 10 is be VBZ 40404 253 11 termed term VBN 40404 253 12 ground ground NN 40404 253 13 water water NN 40404 253 14 , , , 40404 253 15 it -PRON- PRP 40404 253 16 takes take VBZ 40404 253 17 into into IN 40404 253 18 solution solution NN 40404 253 19 from from IN 40404 253 20 the the DT 40404 253 21 soil soil NN 40404 253 22 humus humus NN 40404 253 23 acids acid NNS 40404 253 24 and and CC 40404 253 25 carbon carbon NN 40404 253 26 dioxide dioxide NN 40404 253 27 , , , 40404 253 28 both both DT 40404 253 29 of of IN 40404 253 30 which which WDT 40404 253 31 are be VBP 40404 253 32 constantly constantly RB 40404 253 33 being be VBG 40404 253 34 generated generate VBN 40404 253 35 there there RB 40404 253 36 by by IN 40404 253 37 the the DT 40404 253 38 decay decay NN 40404 253 39 of of IN 40404 253 40 organic organic JJ 40404 253 41 matter matter NN 40404 253 42 . . . 40404 254 1 So so RB 40404 254 2 both both DT 40404 254 3 rain rain NN 40404 254 4 and and CC 40404 254 5 ground ground NN 40404 254 6 water water NN 40404 254 7 are be VBP 40404 254 8 charged charge VBN 40404 254 9 with with IN 40404 254 10 active active JJ 40404 254 11 chemical chemical NN 40404 254 12 agents agent NNS 40404 254 13 , , , 40404 254 14 by by IN 40404 254 15 the the DT 40404 254 16 help help NN 40404 254 17 of of IN 40404 254 18 which which WDT 40404 254 19 they -PRON- PRP 40404 254 20 corrode corrode VBP 40404 254 21 and and CC 40404 254 22 rust rust NN 40404 254 23 and and CC 40404 254 24 decompose decompose VBP 40404 254 25 all all DT 40404 254 26 rocks rock NNS 40404 254 27 to to IN 40404 254 28 a a DT 40404 254 29 greater great JJR 40404 254 30 or or CC 40404 254 31 less less JJR 40404 254 32 degree degree NN 40404 254 33 . . . 40404 255 1 We -PRON- PRP 40404 255 2 notice notice VBP 40404 255 3 now now RB 40404 255 4 three three CD 40404 255 5 of of IN 40404 255 6 the the DT 40404 255 7 chief chief JJ 40404 255 8 chemical chemical NN 40404 255 9 processes process NNS 40404 255 10 concerned concern VBN 40404 255 11 in in IN 40404 255 12 weathering,--solution weathering,--solution NNP 40404 255 13 , , , 40404 255 14 the the DT 40404 255 15 formation formation NN 40404 255 16 of of IN 40404 255 17 carbonates carbonate NNS 40404 255 18 , , , 40404 255 19 and and CC 40404 255 20 oxidation oxidation NN 40404 255 21 . . . 40404 256 1 = = NFP 40404 256 2 Solution.= Solution.= NNP 40404 256 3 Limestone Limestone NNP 40404 256 4 , , , 40404 256 5 although although IN 40404 256 6 so so RB 40404 256 7 little little JJ 40404 256 8 affected affect VBN 40404 256 9 by by IN 40404 256 10 pure pure JJ 40404 256 11 water water NN 40404 256 12 that that DT 40404 256 13 five five CD 40404 256 14 thousand thousand CD 40404 256 15 gallons gallon NNS 40404 256 16 would would MD 40404 256 17 be be VB 40404 256 18 needed need VBN 40404 256 19 to to TO 40404 256 20 dissolve dissolve VB 40404 256 21 a a DT 40404 256 22 single single JJ 40404 256 23 pound pound NN 40404 256 24 , , , 40404 256 25 is be VBZ 40404 256 26 easily easily RB 40404 256 27 dissolved dissolve VBN 40404 256 28 in in IN 40404 256 29 water water NN 40404 256 30 charged charge VBN 40404 256 31 with with IN 40404 256 32 carbon carbon NN 40404 256 33 dioxide dioxide NN 40404 256 34 . . . 40404 257 1 In in IN 40404 257 2 limestone limestone NN 40404 257 3 regions region NNS 40404 257 4 well well UH 40404 257 5 water water NN 40404 257 6 is be VBZ 40404 257 7 therefore therefore RB 40404 257 8 " " `` 40404 257 9 hard hard JJ 40404 257 10 . . . 40404 257 11 " " '' 40404 258 1 On on IN 40404 258 2 boiling boil VBG 40404 258 3 the the DT 40404 258 4 water water NN 40404 258 5 for for IN 40404 258 6 some some DT 40404 258 7 time time NN 40404 258 8 the the DT 40404 258 9 carbon carbon NN 40404 258 10 dioxide dioxide NN 40404 258 11 gas gas NN 40404 258 12 is be VBZ 40404 258 13 expelled expel VBN 40404 258 14 , , , 40404 258 15 the the DT 40404 258 16 whole whole NN 40404 258 17 of of IN 40404 258 18 the the DT 40404 258 19 lime lime NN 40404 258 20 carbonate carbonate NN 40404 258 21 can can MD 40404 258 22 no no RB 40404 258 23 longer longer RB 40404 258 24 be be VB 40404 258 25 held hold VBN 40404 258 26 in in IN 40404 258 27 solution solution NN 40404 258 28 , , , 40404 258 29 and and CC 40404 258 30 much much JJ 40404 258 31 of of IN 40404 258 32 it -PRON- PRP 40404 258 33 is be VBZ 40404 258 34 thrown throw VBN 40404 258 35 down down RP 40404 258 36 to to TO 40404 258 37 form form VB 40404 258 38 a a DT 40404 258 39 crust crust NN 40404 258 40 or or CC 40404 258 41 " " `` 40404 258 42 scale scale NN 40404 258 43 " " '' 40404 258 44 in in IN 40404 258 45 the the DT 40404 258 46 kettle kettle NN 40404 258 47 or or CC 40404 258 48 in in IN 40404 258 49 the the DT 40404 258 50 tubes tube NNS 40404 258 51 of of IN 40404 258 52 the the DT 40404 258 53 steam steam NN 40404 258 54 boiler boiler NN 40404 258 55 . . . 40404 259 1 All all DT 40404 259 2 waters water NNS 40404 259 3 which which WDT 40404 259 4 flow flow VBP 40404 259 5 over over IN 40404 259 6 limestone limestone NN 40404 259 7 rocks rock NNS 40404 259 8 or or CC 40404 259 9 soak soak VB 40404 259 10 through through IN 40404 259 11 them -PRON- PRP 40404 259 12 are be VBP 40404 259 13 constantly constantly RB 40404 259 14 engaged engage VBN 40404 259 15 in in IN 40404 259 16 dissolving dissolve VBG 40404 259 17 them -PRON- PRP 40404 259 18 away away RB 40404 259 19 , , , 40404 259 20 and and CC 40404 259 21 in in IN 40404 259 22 the the DT 40404 259 23 course course NN 40404 259 24 of of IN 40404 259 25 time time NN 40404 259 26 destroy destroy VB 40404 259 27 beds bed NNS 40404 259 28 of of IN 40404 259 29 vast vast JJ 40404 259 30 extent extent NN 40404 259 31 and and CC 40404 259 32 great great JJ 40404 259 33 thickness thickness NN 40404 259 34 . . . 40404 260 1 [ [ -LRB- 40404 260 2 Illustration illustration NN 40404 260 3 : : : 40404 260 4 Fig Fig NNP 40404 260 5 . . . 40404 261 1 4 4 LS 40404 261 2 . . . 40404 262 1 Surface surface NN 40404 262 2 of of IN 40404 262 3 Limestone Limestone NNP 40404 262 4 furrowed furrow VBN 40404 262 5 by by IN 40404 262 6 Weathering Weathering NNP 40404 262 7 , , , 40404 262 8 Montana Montana NNP 40404 262 9 ] ] -RRB- 40404 262 10 The the DT 40404 262 11 upper upper JJ 40404 262 12 surface surface NN 40404 262 13 of of IN 40404 262 14 limestone limestone NN 40404 262 15 rocks rock NNS 40404 262 16 becomes become VBZ 40404 262 17 deeply deeply RB 40404 262 18 pitted pit VBN 40404 262 19 , , , 40404 262 20 as as IN 40404 262 21 we -PRON- PRP 40404 262 22 saw see VBD 40404 262 23 in in IN 40404 262 24 the the DT 40404 262 25 limestone limestone NN 40404 262 26 quarry quarry NN 40404 262 27 , , , 40404 262 28 and and CC 40404 262 29 where where WRB 40404 262 30 the the DT 40404 262 31 mantle mantle NN 40404 262 32 of of IN 40404 262 33 waste waste NN 40404 262 34 has have VBZ 40404 262 35 been be VBN 40404 262 36 removed remove VBN 40404 262 37 it -PRON- PRP 40404 262 38 may may MD 40404 262 39 be be VB 40404 262 40 found find VBN 40404 262 41 so so RB 40404 262 42 intricately intricately RB 40404 262 43 furrowed furrow VBN 40404 262 44 that that IN 40404 262 45 it -PRON- PRP 40404 262 46 is be VBZ 40404 262 47 difficult difficult JJ 40404 262 48 to to TO 40404 262 49 traverse traverse VB 40404 262 50 ( ( -LRB- 40404 262 51 Fig fig NN 40404 262 52 . . . 40404 263 1 4 4 LS 40404 263 2 ) ) -RRB- 40404 263 3 . . . 40404 264 1 Beds bed NNS 40404 264 2 of of IN 40404 264 3 _ _ NNP 40404 264 4 rock rock NN 40404 264 5 salt salt NN 40404 264 6 _ _ NNP 40404 264 7 buried bury VBD 40404 264 8 among among IN 40404 264 9 the the DT 40404 264 10 strata strata NN 40404 264 11 are be VBP 40404 264 12 dissolved dissolve VBN 40404 264 13 by by IN 40404 264 14 seeping seeping JJ 40404 264 15 water water NN 40404 264 16 , , , 40404 264 17 which which WDT 40404 264 18 issues issue VBZ 40404 264 19 in in IN 40404 264 20 salt salt NN 40404 264 21 springs spring NNS 40404 264 22 . . . 40404 265 1 _ _ NNP 40404 265 2 Gypsum Gypsum NNP 40404 265 3 _ _ NNP 40404 265 4 , , , 40404 265 5 a a DT 40404 265 6 mineral mineral NN 40404 265 7 composed compose VBN 40404 265 8 of of IN 40404 265 9 hydrated hydrated JJ 40404 265 10 sulphate sulphate NN 40404 265 11 of of IN 40404 265 12 lime lime NN 40404 265 13 , , , 40404 265 14 and and CC 40404 265 15 so so RB 40404 265 16 soft soft JJ 40404 265 17 that that IN 40404 265 18 it -PRON- PRP 40404 265 19 may may MD 40404 265 20 be be VB 40404 265 21 scratched scratch VBN 40404 265 22 with with IN 40404 265 23 the the DT 40404 265 24 finger finger NN 40404 265 25 nail nail NN 40404 265 26 , , , 40404 265 27 is be VBZ 40404 265 28 readily readily RB 40404 265 29 taken take VBN 40404 265 30 up up RP 40404 265 31 by by IN 40404 265 32 water water NN 40404 265 33 , , , 40404 265 34 giving give VBG 40404 265 35 to to IN 40404 265 36 the the DT 40404 265 37 water water NN 40404 265 38 of of IN 40404 265 39 wells well NNS 40404 265 40 and and CC 40404 265 41 springs spring NNS 40404 265 42 a a DT 40404 265 43 peculiar peculiar JJ 40404 265 44 hardness hardness NN 40404 265 45 difficult difficult JJ 40404 265 46 to to TO 40404 265 47 remove remove VB 40404 265 48 . . . 40404 266 1 The the DT 40404 266 2 dissolving dissolving NN 40404 266 3 action action NN 40404 266 4 of of IN 40404 266 5 moisture moisture NN 40404 266 6 may may MD 40404 266 7 be be VB 40404 266 8 noted note VBN 40404 266 9 on on IN 40404 266 10 marble marble NN 40404 266 11 tombstones tombstone NNS 40404 266 12 of of IN 40404 266 13 some some DT 40404 266 14 age age NN 40404 266 15 , , , 40404 266 16 marble marble NN 40404 266 17 being be VBG 40404 266 18 a a DT 40404 266 19 limestone limestone NN 40404 266 20 altered alter VBN 40404 266 21 by by IN 40404 266 22 heat heat NN 40404 266 23 and and CC 40404 266 24 pressure pressure NN 40404 266 25 and and CC 40404 266 26 composed compose VBN 40404 266 27 of of IN 40404 266 28 crystalline crystalline JJ 40404 266 29 grains grain NNS 40404 266 30 . . . 40404 267 1 By by IN 40404 267 2 assuming assume VBG 40404 267 3 that that IN 40404 267 4 the the DT 40404 267 5 date date NN 40404 267 6 on on IN 40404 267 7 each each DT 40404 267 8 monument monument NN 40404 267 9 marks mark VBZ 40404 267 10 the the DT 40404 267 11 year year NN 40404 267 12 of of IN 40404 267 13 its -PRON- PRP$ 40404 267 14 erection erection NN 40404 267 15 , , , 40404 267 16 one one PRP 40404 267 17 may may MD 40404 267 18 estimate estimate VB 40404 267 19 how how WRB 40404 267 20 many many JJ 40404 267 21 years year NNS 40404 267 22 on on IN 40404 267 23 the the DT 40404 267 24 average average NN 40404 267 25 it -PRON- PRP 40404 267 26 has have VBZ 40404 267 27 taken take VBN 40404 267 28 for for IN 40404 267 29 weathering weather VBG 40404 267 30 to to TO 40404 267 31 loosen loosen VB 40404 267 32 fine fine JJ 40404 267 33 grains grain NNS 40404 267 34 on on IN 40404 267 35 the the DT 40404 267 36 polished polished JJ 40404 267 37 surface surface NN 40404 267 38 , , , 40404 267 39 so so IN 40404 267 40 that that IN 40404 267 41 they -PRON- PRP 40404 267 42 may may MD 40404 267 43 be be VB 40404 267 44 rubbed rub VBN 40404 267 45 off off RP 40404 267 46 with with IN 40404 267 47 the the DT 40404 267 48 finger finger NN 40404 267 49 , , , 40404 267 50 to to TO 40404 267 51 destroy destroy VB 40404 267 52 the the DT 40404 267 53 polish polish NN 40404 267 54 , , , 40404 267 55 to to TO 40404 267 56 round round VB 40404 267 57 the the DT 40404 267 58 sharp sharp JJ 40404 267 59 edges edge NNS 40404 267 60 of of IN 40404 267 61 tool tool NN 40404 267 62 marks mark NNS 40404 267 63 in in IN 40404 267 64 the the DT 40404 267 65 lettering lettering NN 40404 267 66 , , , 40404 267 67 and and CC 40404 267 68 at at IN 40404 267 69 last last JJ 40404 267 70 to to TO 40404 267 71 open open VB 40404 267 72 cracks crack NNS 40404 267 73 and and CC 40404 267 74 seams seam NNS 40404 267 75 and and CC 40404 267 76 break break VB 40404 267 77 down down RP 40404 267 78 the the DT 40404 267 79 stone stone NN 40404 267 80 . . . 40404 268 1 We -PRON- PRP 40404 268 2 may may MD 40404 268 3 notice notice VB 40404 268 4 also also RB 40404 268 5 whether whether IN 40404 268 6 the the DT 40404 268 7 gravestones gravestone NNS 40404 268 8 weather weather VBP 40404 268 9 more more RBR 40404 268 10 rapidly rapidly RB 40404 268 11 on on IN 40404 268 12 the the DT 40404 268 13 sunny sunny JJ 40404 268 14 or or CC 40404 268 15 the the DT 40404 268 16 shady shady JJ 40404 268 17 side side NN 40404 268 18 , , , 40404 268 19 and and CC 40404 268 20 on on IN 40404 268 21 the the DT 40404 268 22 sides side NNS 40404 268 23 or or CC 40404 268 24 on on IN 40404 268 25 the the DT 40404 268 26 top top NN 40404 268 27 . . . 40404 269 1 The the DT 40404 269 2 weathered weather VBN 40404 269 3 surface surface NN 40404 269 4 of of IN 40404 269 5 granular granular JJ 40404 269 6 limestone limestone NN 40404 269 7 containing contain VBG 40404 269 8 shells shell NNS 40404 269 9 shows show VBZ 40404 269 10 them -PRON- PRP 40404 269 11 standing stand VBG 40404 269 12 in in IN 40404 269 13 relief relief NN 40404 269 14 . . . 40404 270 1 As as IN 40404 270 2 the the DT 40404 270 3 shells shell NNS 40404 270 4 are be VBP 40404 270 5 made make VBN 40404 270 6 of of IN 40404 270 7 crystalline crystalline JJ 40404 270 8 carbonate carbonate NN 40404 270 9 of of IN 40404 270 10 lime lime NN 40404 270 11 , , , 40404 270 12 we -PRON- PRP 40404 270 13 may may MD 40404 270 14 infer infer VB 40404 270 15 whether whether IN 40404 270 16 the the DT 40404 270 17 carbonate carbonate NN 40404 270 18 of of IN 40404 270 19 lime lime NN 40404 270 20 is be VBZ 40404 270 21 less less RBR 40404 270 22 soluble soluble JJ 40404 270 23 in in IN 40404 270 24 its -PRON- PRP$ 40404 270 25 granular granular JJ 40404 270 26 or or CC 40404 270 27 in in IN 40404 270 28 its -PRON- PRP$ 40404 270 29 crystalline crystalline JJ 40404 270 30 condition condition NN 40404 270 31 . . . 40404 271 1 = = NFP 40404 271 2 The the DT 40404 271 3 formation formation NN 40404 271 4 of of IN 40404 271 5 carbonates.= carbonates.= NNP 40404 271 6 In in IN 40404 271 7 attacking attack VBG 40404 271 8 minerals mineral NNS 40404 271 9 water water NN 40404 271 10 does do VBZ 40404 271 11 more more RBR 40404 271 12 than than IN 40404 271 13 merely merely RB 40404 271 14 take take VB 40404 271 15 them -PRON- PRP 40404 271 16 into into IN 40404 271 17 solution solution NN 40404 271 18 . . . 40404 272 1 It -PRON- PRP 40404 272 2 decomposes decompose VBZ 40404 272 3 them -PRON- PRP 40404 272 4 , , , 40404 272 5 forming form VBG 40404 272 6 new new JJ 40404 272 7 chemical chemical NN 40404 272 8 compounds compound NNS 40404 272 9 of of IN 40404 272 10 which which WDT 40404 272 11 the the DT 40404 272 12 carbonates carbonate NNS 40404 272 13 are be VBP 40404 272 14 among among IN 40404 272 15 the the DT 40404 272 16 most most RBS 40404 272 17 important important JJ 40404 272 18 . . . 40404 273 1 Thus thus RB 40404 273 2 feldspar feldspar VBD 40404 273 3 consists consist VBZ 40404 273 4 of of IN 40404 273 5 the the DT 40404 273 6 insoluble insoluble JJ 40404 273 7 silicate silicate NN 40404 273 8 of of IN 40404 273 9 alumina alumina NNP 40404 273 10 , , , 40404 273 11 together together RB 40404 273 12 with with IN 40404 273 13 certain certain JJ 40404 273 14 alkaline alkaline NN 40404 273 15 silicates silicate NNS 40404 273 16 which which WDT 40404 273 17 are be VBP 40404 273 18 broken break VBN 40404 273 19 up up RP 40404 273 20 by by IN 40404 273 21 the the DT 40404 273 22 action action NN 40404 273 23 of of IN 40404 273 24 water water NN 40404 273 25 containing contain VBG 40404 273 26 carbon carbon NN 40404 273 27 dioxide dioxide NN 40404 273 28 , , , 40404 273 29 forming form VBG 40404 273 30 alkaline alkaline NN 40404 273 31 carbonates carbonate NNS 40404 273 32 . . . 40404 274 1 These these DT 40404 274 2 carbonates carbonate NNS 40404 274 3 are be VBP 40404 274 4 freely freely RB 40404 274 5 soluble soluble JJ 40404 274 6 and and CC 40404 274 7 contribute contribute VB 40404 274 8 potash potash NN 40404 274 9 and and CC 40404 274 10 soda soda NN 40404 274 11 to to IN 40404 274 12 soils soil NNS 40404 274 13 and and CC 40404 274 14 river river NN 40404 274 15 waters water NNS 40404 274 16 . . . 40404 275 1 By by IN 40404 275 2 the the DT 40404 275 3 removal removal NN 40404 275 4 of of IN 40404 275 5 the the DT 40404 275 6 soluble soluble JJ 40404 275 7 ingredients ingredient NNS 40404 275 8 of of IN 40404 275 9 feldspar feldspar NN 40404 275 10 there there EX 40404 275 11 is be VBZ 40404 275 12 left leave VBN 40404 275 13 the the DT 40404 275 14 silicate silicate NN 40404 275 15 of of IN 40404 275 16 alumina alumina NNP 40404 275 17 , , , 40404 275 18 united unite VBN 40404 275 19 with with IN 40404 275 20 water water NN 40404 275 21 or or CC 40404 275 22 hydrated hydrate VBN 40404 275 23 , , , 40404 275 24 in in IN 40404 275 25 the the DT 40404 275 26 condition condition NN 40404 275 27 of of IN 40404 275 28 a a DT 40404 275 29 fine fine JJ 40404 275 30 plastic plastic NN 40404 275 31 clay clay NN 40404 275 32 which which WDT 40404 275 33 , , , 40404 275 34 when when WRB 40404 275 35 white white JJ 40404 275 36 and and CC 40404 275 37 pure pure JJ 40404 275 38 , , , 40404 275 39 is be VBZ 40404 275 40 known know VBN 40404 275 41 as as IN 40404 275 42 _ _ NNP 40404 275 43 kaolin kaolin NNP 40404 275 44 _ _ NNP 40404 275 45 and and CC 40404 275 46 is be VBZ 40404 275 47 used use VBN 40404 275 48 in in IN 40404 275 49 the the DT 40404 275 50 manufacture manufacture NN 40404 275 51 of of IN 40404 275 52 porcelain porcelain NN 40404 275 53 . . . 40404 276 1 Feldspathic feldspathic JJ 40404 276 2 rocks rock NNS 40404 276 3 which which WDT 40404 276 4 contain contain VBP 40404 276 5 no no DT 40404 276 6 iron iron NN 40404 276 7 compounds compound NNS 40404 276 8 thus thus RB 40404 276 9 weather weather VBP 40404 276 10 to to TO 40404 276 11 whitish whitish VB 40404 276 12 crusts crust NNS 40404 276 13 , , , 40404 276 14 and and CC 40404 276 15 even even RB 40404 276 16 apparently apparently RB 40404 276 17 sound sound VBP 40404 276 18 crystals crystal NNS 40404 276 19 of of IN 40404 276 20 feldspar feldspar NN 40404 276 21 , , , 40404 276 22 when when WRB 40404 276 23 ground ground NN 40404 276 24 to to IN 40404 276 25 thin thin JJ 40404 276 26 slices slice NNS 40404 276 27 and and CC 40404 276 28 placed place VBN 40404 276 29 under under IN 40404 276 30 the the DT 40404 276 31 microscope microscope NN 40404 276 32 , , , 40404 276 33 may may MD 40404 276 34 be be VB 40404 276 35 seen see VBN 40404 276 36 to to TO 40404 276 37 be be VB 40404 276 38 milky milky JJ 40404 276 39 in in IN 40404 276 40 color color NN 40404 276 41 throughout throughout RB 40404 276 42 because because IN 40404 276 43 an an DT 40404 276 44 internal internal JJ 40404 276 45 change change NN 40404 276 46 to to IN 40404 276 47 kaolin kaolin NNP 40404 276 48 has have VBZ 40404 276 49 begun begin VBN 40404 276 50 . . . 40404 277 1 [ [ -LRB- 40404 277 2 Illustration illustration NN 40404 277 3 : : : 40404 277 4 Fig Fig NNP 40404 277 5 . . . 40404 278 1 5 5 CD 40404 278 2 . . . 40404 279 1 Bowlder bowlder NN 40404 279 2 split split VBN 40404 279 3 by by IN 40404 279 4 Heat Heat NNP 40404 279 5 and and CC 40404 279 6 Cold Cold NNP 40404 279 7 , , , 40404 279 8 Western Western NNP 40404 279 9 Texas Texas NNP 40404 279 10 ] ] -RRB- 40404 279 11 = = SYM 40404 279 12 Oxidation.= Oxidation.= NNP 40404 279 13 Rocks rock NNS 40404 279 14 containing contain VBG 40404 279 15 compounds compound NNS 40404 279 16 of of IN 40404 279 17 iron iron NN 40404 279 18 weather weather NN 40404 279 19 to to IN 40404 279 20 reddish reddish JJ 40404 279 21 crusts crust NNS 40404 279 22 , , , 40404 279 23 and and CC 40404 279 24 the the DT 40404 279 25 seams seam NNS 40404 279 26 of of IN 40404 279 27 these these DT 40404 279 28 rocks rock NNS 40404 279 29 are be VBP 40404 279 30 often often RB 40404 279 31 lined line VBN 40404 279 32 with with IN 40404 279 33 rusty rusty JJ 40404 279 34 films film NNS 40404 279 35 . . . 40404 280 1 Oxygen oxygen NN 40404 280 2 and and CC 40404 280 3 water water NN 40404 280 4 have have VBP 40404 280 5 here here RB 40404 280 6 united unite VBN 40404 280 7 with with IN 40404 280 8 the the DT 40404 280 9 iron iron NN 40404 280 10 , , , 40404 280 11 forming form VBG 40404 280 12 hydrated hydrate VBN 40404 280 13 iron iron NN 40404 280 14 oxide oxide NN 40404 280 15 . . . 40404 281 1 The the DT 40404 281 2 effects effect NNS 40404 281 3 of of IN 40404 281 4 oxidation oxidation NN 40404 281 5 may may MD 40404 281 6 be be VB 40404 281 7 seen see VBN 40404 281 8 in in IN 40404 281 9 the the DT 40404 281 10 alteration alteration NN 40404 281 11 of of IN 40404 281 12 many many JJ 40404 281 13 kinds kind NNS 40404 281 14 of of IN 40404 281 15 rocks rock NNS 40404 281 16 and and CC 40404 281 17 in in IN 40404 281 18 red red JJ 40404 281 19 and and CC 40404 281 20 yellow yellow JJ 40404 281 21 colors color NNS 40404 281 22 of of IN 40404 281 23 soils soil NNS 40404 281 24 and and CC 40404 281 25 subsoils subsoil NNS 40404 281 26 . . . 40404 282 1 _ _ NNP 40404 282 2 Pyrite Pyrite NNP 40404 282 3 _ _ NNP 40404 282 4 is be VBZ 40404 282 5 a a DT 40404 282 6 very very RB 40404 282 7 hard hard JJ 40404 282 8 mineral mineral NN 40404 282 9 of of IN 40404 282 10 a a DT 40404 282 11 pale pale JJ 40404 282 12 brass brass NN 40404 282 13 color color NN 40404 282 14 , , , 40404 282 15 found find VBN 40404 282 16 in in IN 40404 282 17 scattered scatter VBN 40404 282 18 crystals crystal NNS 40404 282 19 in in IN 40404 282 20 many many JJ 40404 282 21 rocks rock NNS 40404 282 22 , , , 40404 282 23 and and CC 40404 282 24 is be VBZ 40404 282 25 composed compose VBN 40404 282 26 of of IN 40404 282 27 iron iron NN 40404 282 28 and and CC 40404 282 29 sulphur sulphur NNP 40404 282 30 ( ( -LRB- 40404 282 31 iron iron NN 40404 282 32 sulphide sulphide NN 40404 282 33 ) ) -RRB- 40404 282 34 . . . 40404 283 1 Under under IN 40404 283 2 the the DT 40404 283 3 attack attack NN 40404 283 4 of of IN 40404 283 5 the the DT 40404 283 6 weather weather NN 40404 283 7 it -PRON- PRP 40404 283 8 takes take VBZ 40404 283 9 up up RP 40404 283 10 oxygen oxygen NN 40404 283 11 , , , 40404 283 12 forming form VBG 40404 283 13 iron iron NN 40404 283 14 sulphate sulphate NN 40404 283 15 ( ( -LRB- 40404 283 16 green green NNP 40404 283 17 vitriol vitriol NNP 40404 283 18 ) ) -RRB- 40404 283 19 , , , 40404 283 20 a a DT 40404 283 21 soluble soluble JJ 40404 283 22 compound compound NN 40404 283 23 , , , 40404 283 24 and and CC 40404 283 25 insoluble insoluble JJ 40404 283 26 hydrated hydrated JJ 40404 283 27 iron iron NN 40404 283 28 oxide oxide NN 40404 283 29 , , , 40404 283 30 which which WDT 40404 283 31 as as IN 40404 283 32 a a DT 40404 283 33 mineral mineral NN 40404 283 34 is be VBZ 40404 283 35 known know VBN 40404 283 36 as as IN 40404 283 37 limonite limonite NN 40404 283 38 . . . 40404 284 1 Several several JJ 40404 284 2 large large JJ 40404 284 3 masses masse NNS 40404 284 4 of of IN 40404 284 5 iron iron NN 40404 284 6 sulphide sulphide NN 40404 284 7 were be VBD 40404 284 8 placed place VBN 40404 284 9 some some DT 40404 284 10 years year NNS 40404 284 11 ago ago RB 40404 284 12 on on IN 40404 284 13 the the DT 40404 284 14 lawn lawn NN 40404 284 15 in in IN 40404 284 16 front front NN 40404 284 17 of of IN 40404 284 18 the the DT 40404 284 19 National National NNP 40404 284 20 Museum Museum NNP 40404 284 21 at at IN 40404 284 22 Washington Washington NNP 40404 284 23 . . . 40404 285 1 The the DT 40404 285 2 mineral mineral NN 40404 285 3 changed change VBD 40404 285 4 so so RB 40404 285 5 rapidly rapidly RB 40404 285 6 to to IN 40404 285 7 green green NNP 40404 285 8 vitriol vitriol NNP 40404 285 9 that that IN 40404 285 10 enough enough JJ 40404 285 11 of of IN 40404 285 12 this this DT 40404 285 13 poisonous poisonous JJ 40404 285 14 compound compound NN 40404 285 15 was be VBD 40404 285 16 washed wash VBN 40404 285 17 into into IN 40404 285 18 the the DT 40404 285 19 ground ground NN 40404 285 20 to to TO 40404 285 21 kill kill VB 40404 285 22 the the DT 40404 285 23 roots root NNS 40404 285 24 of of IN 40404 285 25 the the DT 40404 285 26 surrounding surround VBG 40404 285 27 grass grass NN 40404 285 28 . . . 40404 286 1 Agents agent NNS 40404 286 2 Of of IN 40404 286 3 Mechanical mechanical JJ 40404 286 4 Disintegration Disintegration NNP 40404 286 5 = = SYM 40404 286 6 Heat Heat NNP 40404 286 7 and and CC 40404 286 8 cold.= cold.= CD 40404 286 9 Rocks rock NNS 40404 286 10 exposed expose VBN 40404 286 11 to to IN 40404 286 12 the the DT 40404 286 13 direct direct JJ 40404 286 14 rays ray NNS 40404 286 15 of of IN 40404 286 16 the the DT 40404 286 17 sun sun NN 40404 286 18 become become VBP 40404 286 19 strongly strongly RB 40404 286 20 heated heated JJ 40404 286 21 by by IN 40404 286 22 day day NN 40404 286 23 and and CC 40404 286 24 expand expand VB 40404 286 25 . . . 40404 287 1 After after IN 40404 287 2 sunset sunset NN 40404 287 3 they -PRON- PRP 40404 287 4 rapidly rapidly RB 40404 287 5 cool cool VBP 40404 287 6 and and CC 40404 287 7 contract contract VBP 40404 287 8 . . . 40404 288 1 When when WRB 40404 288 2 the the DT 40404 288 3 difference difference NN 40404 288 4 in in IN 40404 288 5 temperature temperature NN 40404 288 6 between between IN 40404 288 7 day day NN 40404 288 8 and and CC 40404 288 9 night night NN 40404 288 10 is be VBZ 40404 288 11 considerable considerable JJ 40404 288 12 , , , 40404 288 13 the the DT 40404 288 14 repeated repeat VBN 40404 288 15 strains strain NNS 40404 288 16 of of IN 40404 288 17 sudden sudden JJ 40404 288 18 expansion expansion NN 40404 288 19 and and CC 40404 288 20 contraction contraction NN 40404 288 21 at at IN 40404 288 22 last last JJ 40404 288 23 become become VB 40404 288 24 greater great JJR 40404 288 25 than than IN 40404 288 26 the the DT 40404 288 27 rocks rock NNS 40404 288 28 can can MD 40404 288 29 bear bear VB 40404 288 30 , , , 40404 288 31 and and CC 40404 288 32 they -PRON- PRP 40404 288 33 break break VBP 40404 288 34 , , , 40404 288 35 for for IN 40404 288 36 the the DT 40404 288 37 same same JJ 40404 288 38 reason reason NN 40404 288 39 that that IN 40404 288 40 a a DT 40404 288 41 glass glass NN 40404 288 42 cracks crack NNS 40404 288 43 when when WRB 40404 288 44 plunged plunge VBN 40404 288 45 into into IN 40404 288 46 boiling boiling NN 40404 288 47 water water NN 40404 288 48 ( ( -LRB- 40404 288 49 Fig fig NN 40404 288 50 . . . 40404 289 1 5 5 LS 40404 289 2 ) ) -RRB- 40404 289 3 . . . 40404 290 1 Rocks rock NNS 40404 290 2 are be VBP 40404 290 3 poor poor JJ 40404 290 4 conductors conductor NNS 40404 290 5 of of IN 40404 290 6 heat heat NN 40404 290 7 , , , 40404 290 8 and and CC 40404 290 9 hence hence RB 40404 290 10 their -PRON- PRP$ 40404 290 11 surfaces surface NNS 40404 290 12 may may MD 40404 290 13 become become VB 40404 290 14 painfully painfully RB 40404 290 15 hot hot JJ 40404 290 16 under under IN 40404 290 17 the the DT 40404 290 18 full full JJ 40404 290 19 blaze blaze NN 40404 290 20 of of IN 40404 290 21 the the DT 40404 290 22 sun sun NN 40404 290 23 , , , 40404 290 24 while while IN 40404 290 25 the the DT 40404 290 26 interior interior NNP 40404 290 27 remains remain VBZ 40404 290 28 comparatively comparatively RB 40404 290 29 cool cool JJ 40404 290 30 . . . 40404 291 1 By by IN 40404 291 2 day day NN 40404 291 3 the the DT 40404 291 4 surface surface NN 40404 291 5 shell shell NN 40404 291 6 expands expand VBZ 40404 291 7 and and CC 40404 291 8 tends tend VBZ 40404 291 9 to to TO 40404 291 10 break break VB 40404 291 11 loose loose JJ 40404 291 12 from from IN 40404 291 13 the the DT 40404 291 14 mass mass NN 40404 291 15 of of IN 40404 291 16 the the DT 40404 291 17 stone stone NN 40404 291 18 . . . 40404 292 1 In in IN 40404 292 2 cooling cool VBG 40404 292 3 in in IN 40404 292 4 the the DT 40404 292 5 evening evening NN 40404 292 6 the the DT 40404 292 7 surface surface NN 40404 292 8 shell shell NN 40404 292 9 suddenly suddenly RB 40404 292 10 contracts contract VBZ 40404 292 11 on on IN 40404 292 12 the the DT 40404 292 13 unyielding unyielding JJ 40404 292 14 interior interior NN 40404 292 15 and and CC 40404 292 16 in in IN 40404 292 17 time time NN 40404 292 18 is be VBZ 40404 292 19 forced force VBN 40404 292 20 off off RP 40404 292 21 in in IN 40404 292 22 scales scale NNS 40404 292 23 ( ( -LRB- 40404 292 24 Fig fig NN 40404 292 25 . . . 40404 293 1 6 6 LS 40404 293 2 ) ) -RRB- 40404 293 3 . . . 40404 294 1 [ [ -LRB- 40404 294 2 Illustration illustration NN 40404 294 3 : : : 40404 294 4 Fig Fig NNP 40404 294 5 . . . 40404 295 1 6 6 CD 40404 295 2 . . . 40404 296 1 Bowlders bowlder NNS 40404 296 2 scaling scale VBG 40404 296 3 off off RP 40404 296 4 under under IN 40404 296 5 Heat Heat NNP 40404 296 6 and and CC 40404 296 7 Cold Cold NNP 40404 296 8 , , , 40404 296 9 Western Western NNP 40404 296 10 Texas Texas NNP 40404 296 11 ] ] -RRB- 40404 296 12 Many many JJ 40404 296 13 rocks rock NNS 40404 296 14 , , , 40404 296 15 such such JJ 40404 296 16 as as IN 40404 296 17 granite granite NN 40404 296 18 , , , 40404 296 19 are be VBP 40404 296 20 made make VBN 40404 296 21 up up RP 40404 296 22 of of IN 40404 296 23 grains grain NNS 40404 296 24 of of IN 40404 296 25 various various JJ 40404 296 26 minerals mineral NNS 40404 296 27 which which WDT 40404 296 28 differ differ VBP 40404 296 29 in in IN 40404 296 30 color color NN 40404 296 31 and and CC 40404 296 32 in in IN 40404 296 33 their -PRON- PRP$ 40404 296 34 capacity capacity NN 40404 296 35 to to TO 40404 296 36 absorb absorb VB 40404 296 37 heat heat NN 40404 296 38 , , , 40404 296 39 and and CC 40404 296 40 which which WDT 40404 296 41 therefore therefore RB 40404 296 42 contract contract VBP 40404 296 43 and and CC 40404 296 44 expand expand VB 40404 296 45 in in IN 40404 296 46 different different JJ 40404 296 47 ratios ratio NNS 40404 296 48 . . . 40404 297 1 In in IN 40404 297 2 heating heating NN 40404 297 3 and and CC 40404 297 4 cooling cool VBG 40404 297 5 these these DT 40404 297 6 grains grain NNS 40404 297 7 crowd crowd VBP 40404 297 8 against against IN 40404 297 9 their -PRON- PRP$ 40404 297 10 neighbors neighbor NNS 40404 297 11 and and CC 40404 297 12 tear tear VB 40404 297 13 loose loose JJ 40404 297 14 from from IN 40404 297 15 them -PRON- PRP 40404 297 16 , , , 40404 297 17 so so IN 40404 297 18 that that IN 40404 297 19 finally finally RB 40404 297 20 the the DT 40404 297 21 rock rock NN 40404 297 22 disintegrates disintegrate VBZ 40404 297 23 into into IN 40404 297 24 sand sand NN 40404 297 25 . . . 40404 298 1 The the DT 40404 298 2 conditions condition NNS 40404 298 3 for for IN 40404 298 4 the the DT 40404 298 5 destructive destructive JJ 40404 298 6 action action NN 40404 298 7 of of IN 40404 298 8 heat heat NN 40404 298 9 and and CC 40404 298 10 cold cold JJ 40404 298 11 are be VBP 40404 298 12 most most RBS 40404 298 13 fully fully RB 40404 298 14 met meet VBN 40404 298 15 in in IN 40404 298 16 arid arid JJ 40404 298 17 regions region NNS 40404 298 18 when when WRB 40404 298 19 vegetation vegetation NN 40404 298 20 is be VBZ 40404 298 21 wanting want VBG 40404 298 22 for for IN 40404 298 23 lack lack NN 40404 298 24 of of IN 40404 298 25 sufficient sufficient JJ 40404 298 26 rain rain NN 40404 298 27 . . . 40404 299 1 The the DT 40404 299 2 soil soil NN 40404 299 3 not not RB 40404 299 4 being be VBG 40404 299 5 held hold VBN 40404 299 6 together together RB 40404 299 7 by by IN 40404 299 8 the the DT 40404 299 9 roots root NNS 40404 299 10 of of IN 40404 299 11 plants plant NNS 40404 299 12 is be VBZ 40404 299 13 blown blow VBN 40404 299 14 away away RB 40404 299 15 over over IN 40404 299 16 large large JJ 40404 299 17 areas area NNS 40404 299 18 , , , 40404 299 19 leaving leave VBG 40404 299 20 the the DT 40404 299 21 rocks rock NNS 40404 299 22 bare bare JJ 40404 299 23 to to IN 40404 299 24 the the DT 40404 299 25 blazing blaze VBG 40404 299 26 sun sun NN 40404 299 27 in in IN 40404 299 28 a a DT 40404 299 29 cloudless cloudless JJ 40404 299 30 sky sky NN 40404 299 31 . . . 40404 300 1 The the DT 40404 300 2 air air NN 40404 300 3 is be VBZ 40404 300 4 dry dry JJ 40404 300 5 , , , 40404 300 6 and and CC 40404 300 7 the the DT 40404 300 8 heat heat NN 40404 300 9 received receive VBN 40404 300 10 by by IN 40404 300 11 the the DT 40404 300 12 earth earth NN 40404 300 13 by by IN 40404 300 14 day day NN 40404 300 15 is be VBZ 40404 300 16 therefore therefore RB 40404 300 17 rapidly rapidly RB 40404 300 18 radiated radiate VBN 40404 300 19 at at IN 40404 300 20 night night NN 40404 300 21 into into IN 40404 300 22 space space NN 40404 300 23 . . . 40404 301 1 There there EX 40404 301 2 is be VBZ 40404 301 3 a a DT 40404 301 4 sharp sharp JJ 40404 301 5 and and CC 40404 301 6 sudden sudden JJ 40404 301 7 fall fall NN 40404 301 8 of of IN 40404 301 9 temperature temperature NN 40404 301 10 after after IN 40404 301 11 sunset sunset NN 40404 301 12 , , , 40404 301 13 and and CC 40404 301 14 the the DT 40404 301 15 rocks rock NNS 40404 301 16 , , , 40404 301 17 strongly strongly RB 40404 301 18 heated heat VBN 40404 301 19 by by IN 40404 301 20 day day NN 40404 301 21 , , , 40404 301 22 are be VBP 40404 301 23 now now RB 40404 301 24 chilled chill VBN 40404 301 25 perhaps perhaps RB 40404 301 26 even even RB 40404 301 27 to to IN 40404 301 28 the the DT 40404 301 29 freezing freezing NN 40404 301 30 point point NN 40404 301 31 . . . 40404 302 1 In in IN 40404 302 2 the the DT 40404 302 3 Sahara Sahara NNP 40404 302 4 the the DT 40404 302 5 thermometer thermometer NN 40404 302 6 has have VBZ 40404 302 7 been be VBN 40404 302 8 known know VBN 40404 302 9 to to TO 40404 302 10 fall fall VB 40404 302 11 131 131 CD 40404 302 12 ° ° , 40404 302 13 F. F. NNP 40404 302 14 within within IN 40404 302 15 a a DT 40404 302 16 few few JJ 40404 302 17 hours hour NNS 40404 302 18 . . . 40404 303 1 In in IN 40404 303 2 the the DT 40404 303 3 light light JJ 40404 303 4 air air NN 40404 303 5 of of IN 40404 303 6 the the DT 40404 303 7 Pamir Pamir NNP 40404 303 8 plateau plateau NN 40404 303 9 in in IN 40404 303 10 central central JJ 40404 303 11 Asia Asia NNP 40404 303 12 a a DT 40404 303 13 rise rise NN 40404 303 14 of of IN 40404 303 15 90 90 CD 40404 303 16 ° ° , 40404 303 17 F. F. NNP 40404 303 18 has have VBZ 40404 303 19 been be VBN 40404 303 20 recorded record VBN 40404 303 21 from from IN 40404 303 22 seven seven CD 40404 303 23 o'clock o'clock NN 40404 303 24 in in IN 40404 303 25 the the DT 40404 303 26 morning morning NN 40404 303 27 to to IN 40404 303 28 one one CD 40404 303 29 o'clock o'clock NN 40404 303 30 in in IN 40404 303 31 the the DT 40404 303 32 afternoon afternoon NN 40404 303 33 . . . 40404 304 1 On on IN 40404 304 2 the the DT 40404 304 3 mountains mountain NNS 40404 304 4 of of IN 40404 304 5 southwestern southwestern JJ 40404 304 6 Texas Texas NNP 40404 304 7 there there EX 40404 304 8 are be VBP 40404 304 9 frequently frequently RB 40404 304 10 heard hear VBN 40404 304 11 crackling crackle VBG 40404 304 12 noises noise NNS 40404 304 13 as as IN 40404 304 14 the the DT 40404 304 15 rocks rock NNS 40404 304 16 of of IN 40404 304 17 that that DT 40404 304 18 arid arid NN 40404 304 19 region region NN 40404 304 20 throw throw VBP 40404 304 21 off off RP 40404 304 22 scales scale NNS 40404 304 23 from from IN 40404 304 24 a a DT 40404 304 25 fraction fraction NN 40404 304 26 of of IN 40404 304 27 an an DT 40404 304 28 inch inch NN 40404 304 29 to to IN 40404 304 30 four four CD 40404 304 31 inches inch NNS 40404 304 32 in in IN 40404 304 33 thickness thickness NN 40404 304 34 , , , 40404 304 35 and and CC 40404 304 36 loud loud JJ 40404 304 37 reports report NNS 40404 304 38 are be VBP 40404 304 39 made make VBN 40404 304 40 as as IN 40404 304 41 huge huge JJ 40404 304 42 bowlders bowlder NNS 40404 304 43 split split VBD 40404 304 44 apart apart RB 40404 304 45 . . . 40404 305 1 Desert desert NN 40404 305 2 pebbles pebble NNS 40404 305 3 weakened weaken VBN 40404 305 4 by by IN 40404 305 5 long long JJ 40404 305 6 exposure exposure NN 40404 305 7 to to TO 40404 305 8 heat heat VB 40404 305 9 and and CC 40404 305 10 cold cold JJ 40404 305 11 have have VBP 40404 305 12 been be VBN 40404 305 13 shivered shiver VBN 40404 305 14 to to IN 40404 305 15 fine fine JJ 40404 305 16 sharp sharp RB 40404 305 17 - - HYPH 40404 305 18 pointed pointed JJ 40404 305 19 fragments fragment NNS 40404 305 20 on on IN 40404 305 21 being be VBG 40404 305 22 placed place VBN 40404 305 23 in in IN 40404 305 24 sand sand NN 40404 305 25 heated heat VBN 40404 305 26 to to IN 40404 305 27 180 180 CD 40404 305 28 degrees degree NNS 40404 305 29 F. F. NNP 40404 305 30 Beds bed VBZ 40404 305 31 half half PDT 40404 305 32 a a DT 40404 305 33 foot foot NN 40404 305 34 thick thick JJ 40404 305 35 , , , 40404 305 36 forming form VBG 40404 305 37 the the DT 40404 305 38 floor floor NN 40404 305 39 of of IN 40404 305 40 limestone limestone NN 40404 305 41 quarries quarry NNS 40404 305 42 in in IN 40404 305 43 Wisconsin Wisconsin NNP 40404 305 44 , , , 40404 305 45 have have VBP 40404 305 46 been be VBN 40404 305 47 known know VBN 40404 305 48 to to TO 40404 305 49 buckle buckle VB 40404 305 50 and and CC 40404 305 51 arch arch VB 40404 305 52 and and CC 40404 305 53 break break VB 40404 305 54 to to TO 40404 305 55 fragments fragment NNS 40404 305 56 under under IN 40404 305 57 the the DT 40404 305 58 heat heat NN 40404 305 59 of of IN 40404 305 60 the the DT 40404 305 61 summer summer NN 40404 305 62 sun sun NN 40404 305 63 . . . 40404 306 1 = = NFP 40404 306 2 Frost.= frost.= JJ 40404 306 3 By by IN 40404 306 4 this this DT 40404 306 5 term term NN 40404 306 6 is be VBZ 40404 306 7 meant mean VBN 40404 306 8 the the DT 40404 306 9 freezing freezing NN 40404 306 10 and and CC 40404 306 11 thawing thawing NN 40404 306 12 of of IN 40404 306 13 water water NN 40404 306 14 contained contain VBN 40404 306 15 in in IN 40404 306 16 the the DT 40404 306 17 pores pore NNS 40404 306 18 and and CC 40404 306 19 crevices crevice NNS 40404 306 20 of of IN 40404 306 21 rocks rock NNS 40404 306 22 . . . 40404 307 1 All all DT 40404 307 2 rocks rock NNS 40404 307 3 are be VBP 40404 307 4 more more RBR 40404 307 5 or or CC 40404 307 6 less less RBR 40404 307 7 porous porous JJ 40404 307 8 and and CC 40404 307 9 all all DT 40404 307 10 contain contain VBP 40404 307 11 more more RBR 40404 307 12 or or CC 40404 307 13 less less JJR 40404 307 14 water water NN 40404 307 15 in in IN 40404 307 16 their -PRON- PRP$ 40404 307 17 pores pore NNS 40404 307 18 . . . 40404 308 1 Workers worker NNS 40404 308 2 in in IN 40404 308 3 stone stone NN 40404 308 4 call call NN 40404 308 5 this this DT 40404 308 6 " " `` 40404 308 7 quarry quarry JJ 40404 308 8 water water NN 40404 308 9 , , , 40404 308 10 " " '' 40404 308 11 and and CC 40404 308 12 speak speak VB 40404 308 13 of of IN 40404 308 14 a a DT 40404 308 15 stone stone NN 40404 308 16 as as IN 40404 308 17 " " `` 40404 308 18 green green JJ 40404 308 19 " " '' 40404 308 20 before before IN 40404 308 21 the the DT 40404 308 22 quarry quarry NNP 40404 308 23 water water NN 40404 308 24 has have VBZ 40404 308 25 dried dry VBN 40404 308 26 out out RP 40404 308 27 . . . 40404 309 1 Water water NN 40404 309 2 also also RB 40404 309 3 seeps seep VBZ 40404 309 4 along along IN 40404 309 5 joints joint NNS 40404 309 6 and and CC 40404 309 7 bedding bed VBG 40404 309 8 planes plane NNS 40404 309 9 and and CC 40404 309 10 gathers gather NNS 40404 309 11 in in IN 40404 309 12 all all DT 40404 309 13 seams seam NNS 40404 309 14 and and CC 40404 309 15 crevices crevice NNS 40404 309 16 . . . 40404 310 1 Water water NN 40404 310 2 expands expand VBZ 40404 310 3 in in IN 40404 310 4 freezing freezing NN 40404 310 5 , , , 40404 310 6 ten ten CD 40404 310 7 cubic cubic JJ 40404 310 8 inches inch NNS 40404 310 9 of of IN 40404 310 10 water water NN 40404 310 11 freezing freezing NN 40404 310 12 to to IN 40404 310 13 about about RB 40404 310 14 eleven eleven CD 40404 310 15 cubic cubic JJ 40404 310 16 inches inch NNS 40404 310 17 of of IN 40404 310 18 ice ice NN 40404 310 19 . . . 40404 311 1 As as IN 40404 311 2 water water NN 40404 311 3 freezes freeze NNS 40404 311 4 in in IN 40404 311 5 the the DT 40404 311 6 rifts rift NNS 40404 311 7 and and CC 40404 311 8 pores pore NNS 40404 311 9 of of IN 40404 311 10 rocks rock NNS 40404 311 11 it -PRON- PRP 40404 311 12 expands expand VBZ 40404 311 13 with with IN 40404 311 14 the the DT 40404 311 15 irresistible irresistible JJ 40404 311 16 force force NN 40404 311 17 illustrated illustrate VBN 40404 311 18 in in IN 40404 311 19 the the DT 40404 311 20 freezing freezing NN 40404 311 21 and and CC 40404 311 22 breaking breaking NN 40404 311 23 of of IN 40404 311 24 water water NN 40404 311 25 pipes pipe NNS 40404 311 26 in in IN 40404 311 27 winter winter NN 40404 311 28 . . . 40404 312 1 The the DT 40404 312 2 first first JJ 40404 312 3 rift rift NN 40404 312 4 in in IN 40404 312 5 the the DT 40404 312 6 rock rock NN 40404 312 7 , , , 40404 312 8 perhaps perhaps RB 40404 312 9 too too RB 40404 312 10 narrow narrow JJ 40404 312 11 to to TO 40404 312 12 be be VB 40404 312 13 seen see VBN 40404 312 14 , , , 40404 312 15 is be VBZ 40404 312 16 widened widen VBN 40404 312 17 little little RB 40404 312 18 by by IN 40404 312 19 little little JJ 40404 312 20 by by IN 40404 312 21 the the DT 40404 312 22 wedges wedge NNS 40404 312 23 of of IN 40404 312 24 successive successive JJ 40404 312 25 frosts frost NNS 40404 312 26 , , , 40404 312 27 and and CC 40404 312 28 finally finally RB 40404 312 29 the the DT 40404 312 30 rock rock NN 40404 312 31 is be VBZ 40404 312 32 broken break VBN 40404 312 33 into into IN 40404 312 34 detached detach VBN 40404 312 35 blocks block NNS 40404 312 36 , , , 40404 312 37 and and CC 40404 312 38 these these DT 40404 312 39 into into IN 40404 312 40 angular angular JJ 40404 312 41 chip chip NN 40404 312 42 - - HYPH 40404 312 43 stone stone NN 40404 312 44 by by IN 40404 312 45 the the DT 40404 312 46 same same JJ 40404 312 47 process process NN 40404 312 48 . . . 40404 313 1 It -PRON- PRP 40404 313 2 is be VBZ 40404 313 3 on on IN 40404 313 4 mountain mountain NN 40404 313 5 tops top NNS 40404 313 6 and and CC 40404 313 7 in in IN 40404 313 8 high high JJ 40404 313 9 latitudes latitude NNS 40404 313 10 that that WDT 40404 313 11 the the DT 40404 313 12 effects effect NNS 40404 313 13 of of IN 40404 313 14 frost frost NN 40404 313 15 are be VBP 40404 313 16 most most RBS 40404 313 17 plainly plainly RB 40404 313 18 seen see VBN 40404 313 19 . . . 40404 314 1 " " `` 40404 314 2 Every every DT 40404 314 3 summit summit NN 40404 314 4 " " '' 40404 314 5 says say VBZ 40404 314 6 Whymper Whymper NNP 40404 314 7 , , , 40404 314 8 " " `` 40404 314 9 amongst amongst IN 40404 314 10 the the DT 40404 314 11 rock rock NN 40404 314 12 summits summit VBZ 40404 314 13 upon upon IN 40404 314 14 which which WDT 40404 314 15 I -PRON- PRP 40404 314 16 have have VBP 40404 314 17 stood stand VBN 40404 314 18 has have VBZ 40404 314 19 been be VBN 40404 314 20 nothing nothing NN 40404 314 21 but but IN 40404 314 22 a a DT 40404 314 23 piled pile VBN 40404 314 24 - - HYPH 40404 314 25 up up RP 40404 314 26 heap heap NN 40404 314 27 of of IN 40404 314 28 fragments fragment NNS 40404 314 29 " " '' 40404 314 30 ( ( -LRB- 40404 314 31 Fig fig NN 40404 314 32 . . . 40404 315 1 7 7 LS 40404 315 2 ) ) -RRB- 40404 315 3 . . . 40404 316 1 In in IN 40404 316 2 Iceland Iceland NNP 40404 316 3 , , , 40404 316 4 in in IN 40404 316 5 Spitzbergen Spitzbergen NNP 40404 316 6 , , , 40404 316 7 in in IN 40404 316 8 Kamchatka Kamchatka NNP 40404 316 9 , , , 40404 316 10 and and CC 40404 316 11 in in IN 40404 316 12 other other JJ 40404 316 13 frigid frigid JJ 40404 316 14 lands land NNS 40404 316 15 large large JJ 40404 316 16 areas area NNS 40404 316 17 are be VBP 40404 316 18 thickly thickly RB 40404 316 19 strewn strew VBN 40404 316 20 with with IN 40404 316 21 sharp sharp RB 40404 316 22 - - HYPH 40404 316 23 edged edge VBN 40404 316 24 fragments fragment NNS 40404 316 25 into into IN 40404 316 26 which which WDT 40404 316 27 the the DT 40404 316 28 rock rock NN 40404 316 29 has have VBZ 40404 316 30 been be VBN 40404 316 31 shattered shatter VBN 40404 316 32 by by IN 40404 316 33 frost frost NN 40404 316 34 . . . 40404 317 1 [ [ -LRB- 40404 317 2 Illustration illustration NN 40404 317 3 : : : 40404 317 4 Fig Fig NNP 40404 317 5 . . . 40404 318 1 7 7 LS 40404 318 2 . . . 40404 319 1 Rocks rock NNS 40404 319 2 broken break VBN 40404 319 3 by by IN 40404 319 4 Frost Frost NNP 40404 319 5 , , , 40404 319 6 Summit Summit NNP 40404 319 7 of of IN 40404 319 8 the the DT 40404 319 9 Eggischhorn Eggischhorn NNP 40404 319 10 , , , 40404 319 11 Switzerland Switzerland NNP 40404 319 12 ] ] -RRB- 40404 319 13 = = SYM 40404 319 14 Organic Organic NNP 40404 319 15 agents.= agents.= NNP 40404 319 16 We -PRON- PRP 40404 319 17 must must MD 40404 319 18 reckon reckon VB 40404 319 19 the the DT 40404 319 20 roots root NNS 40404 319 21 of of IN 40404 319 22 plants plant NNS 40404 319 23 and and CC 40404 319 24 trees tree NNS 40404 319 25 among among IN 40404 319 26 the the DT 40404 319 27 agents agent NNS 40404 319 28 which which WDT 40404 319 29 break break VBP 40404 319 30 rocks rock NNS 40404 319 31 into into IN 40404 319 32 pieces piece NNS 40404 319 33 . . . 40404 320 1 The the DT 40404 320 2 tiny tiny JJ 40404 320 3 rootlet rootlet NN 40404 320 4 in in IN 40404 320 5 its -PRON- PRP$ 40404 320 6 search search NN 40404 320 7 for for IN 40404 320 8 food food NN 40404 320 9 and and CC 40404 320 10 moisture moisture NN 40404 320 11 inserts insert VBZ 40404 320 12 itself -PRON- PRP 40404 320 13 into into IN 40404 320 14 some some DT 40404 320 15 minute minute NN 40404 320 16 rift rift NN 40404 320 17 , , , 40404 320 18 and and CC 40404 320 19 as as IN 40404 320 20 it -PRON- PRP 40404 320 21 grows grow VBZ 40404 320 22 slowly slowly RB 40404 320 23 wedges wedge VBZ 40404 320 24 the the DT 40404 320 25 rock rock NN 40404 320 26 apart apart RB 40404 320 27 . . . 40404 321 1 Moreover moreover RB 40404 321 2 , , , 40404 321 3 the the DT 40404 321 4 acids acid NNS 40404 321 5 of of IN 40404 321 6 the the DT 40404 321 7 root root NN 40404 321 8 corrode corrode VBP 40404 321 9 the the DT 40404 321 10 rocks rock NNS 40404 321 11 with with IN 40404 321 12 which which WDT 40404 321 13 they -PRON- PRP 40404 321 14 are be VBP 40404 321 15 in in IN 40404 321 16 contact contact NN 40404 321 17 . . . 40404 322 1 One one CD 40404 322 2 may may MD 40404 322 3 sometimes sometimes RB 40404 322 4 find find VB 40404 322 5 in in IN 40404 322 6 the the DT 40404 322 7 soil soil NN 40404 322 8 a a DT 40404 322 9 block block NN 40404 322 10 of of IN 40404 322 11 limestone limestone NN 40404 322 12 wrapped wrap VBN 40404 322 13 in in IN 40404 322 14 a a DT 40404 322 15 mesh mesh NN 40404 322 16 of of IN 40404 322 17 roots root NNS 40404 322 18 , , , 40404 322 19 each each DT 40404 322 20 of of IN 40404 322 21 which which WDT 40404 322 22 lies lie VBZ 40404 322 23 in in IN 40404 322 24 a a DT 40404 322 25 little little JJ 40404 322 26 furrow furrow NN 40404 322 27 where where WRB 40404 322 28 it -PRON- PRP 40404 322 29 has have VBZ 40404 322 30 eaten eat VBN 40404 322 31 into into IN 40404 322 32 the the DT 40404 322 33 stone stone NN 40404 322 34 . . . 40404 323 1 Rootless Rootless NNP 40404 323 2 plants plant NNS 40404 323 3 called call VBD 40404 323 4 _ _ NNP 40404 323 5 lichens lichen NNS 40404 323 6 _ _ NNP 40404 323 7 often often RB 40404 323 8 cover cover VBP 40404 323 9 and and CC 40404 323 10 corrode corrode NN 40404 323 11 rocks rock NNS 40404 323 12 as as RB 40404 323 13 yet yet RB 40404 323 14 bare bare JJ 40404 323 15 of of IN 40404 323 16 soil soil NN 40404 323 17 ; ; : 40404 323 18 but but CC 40404 323 19 where where WRB 40404 323 20 lichens lichen NNS 40404 323 21 are be VBP 40404 323 22 destroying destroy VBG 40404 323 23 the the DT 40404 323 24 rock rock NN 40404 323 25 less less RBR 40404 323 26 rapidly rapidly RB 40404 323 27 than than IN 40404 323 28 does do VBZ 40404 323 29 the the DT 40404 323 30 weather weather NN 40404 323 31 , , , 40404 323 32 they -PRON- PRP 40404 323 33 serve serve VBP 40404 323 34 in in IN 40404 323 35 a a DT 40404 323 36 way way NN 40404 323 37 as as IN 40404 323 38 a a DT 40404 323 39 protection protection NN 40404 323 40 . . . 40404 324 1 = = NFP 40404 324 2 Conditions condition NNS 40404 324 3 favoring favor VBG 40404 324 4 disintegration disintegration NN 40404 324 5 and and CC 40404 324 6 decay.= decay.= NNS 40404 324 7 The the DT 40404 324 8 disintegration disintegration NN 40404 324 9 of of IN 40404 324 10 rocks rock NNS 40404 324 11 under under IN 40404 324 12 frost frost NN 40404 324 13 and and CC 40404 324 14 temperature temperature NN 40404 324 15 changes change NNS 40404 324 16 goes go VBZ 40404 324 17 on on IN 40404 324 18 most most RBS 40404 324 19 rapidly rapidly RB 40404 324 20 in in IN 40404 324 21 cold cold JJ 40404 324 22 and and CC 40404 324 23 arid arid JJ 40404 324 24 climates climate NNS 40404 324 25 , , , 40404 324 26 and and CC 40404 324 27 where where WRB 40404 324 28 vegetation vegetation NN 40404 324 29 is be VBZ 40404 324 30 scant scant JJ 40404 324 31 or or CC 40404 324 32 absent absent JJ 40404 324 33 . . . 40404 325 1 On on IN 40404 325 2 the the DT 40404 325 3 contrary contrary NN 40404 325 4 , , , 40404 325 5 the the DT 40404 325 6 decay decay NN 40404 325 7 of of IN 40404 325 8 rocks rock NNS 40404 325 9 under under IN 40404 325 10 the the DT 40404 325 11 chemical chemical JJ 40404 325 12 action action NN 40404 325 13 of of IN 40404 325 14 water water NN 40404 325 15 is be VBZ 40404 325 16 favored favor VBN 40404 325 17 by by IN 40404 325 18 a a DT 40404 325 19 warm warm JJ 40404 325 20 , , , 40404 325 21 moist moist JJ 40404 325 22 climate climate NN 40404 325 23 and and CC 40404 325 24 abundant abundant JJ 40404 325 25 vegetation vegetation NN 40404 325 26 . . . 40404 326 1 Frost Frost NNP 40404 326 2 and and CC 40404 326 3 heat heat NN 40404 326 4 and and CC 40404 326 5 cold cold JJ 40404 326 6 can can MD 40404 326 7 only only RB 40404 326 8 act act VB 40404 326 9 within within IN 40404 326 10 the the DT 40404 326 11 few few JJ 40404 326 12 feet foot NNS 40404 326 13 from from IN 40404 326 14 the the DT 40404 326 15 surface surface NN 40404 326 16 to to TO 40404 326 17 which which WDT 40404 326 18 the the DT 40404 326 19 necessary necessary JJ 40404 326 20 temperature temperature NN 40404 326 21 changes change NNS 40404 326 22 are be VBP 40404 326 23 limited limit VBN 40404 326 24 , , , 40404 326 25 while while IN 40404 326 26 water water NN 40404 326 27 penetrates penetrate NNS 40404 326 28 and and CC 40404 326 29 alters alter VBZ 40404 326 30 the the DT 40404 326 31 rocks rock NNS 40404 326 32 to to IN 40404 326 33 great great JJ 40404 326 34 depths depth NNS 40404 326 35 . . . 40404 327 1 The the DT 40404 327 2 pupil pupil NN 40404 327 3 may may MD 40404 327 4 explain explain VB 40404 327 5 . . . 40404 328 1 In in IN 40404 328 2 what what WDT 40404 328 3 ways way NNS 40404 328 4 the the DT 40404 328 5 presence presence NN 40404 328 6 of of IN 40404 328 7 joints joint NNS 40404 328 8 and and CC 40404 328 9 bedding bed VBG 40404 328 10 planes plane NNS 40404 328 11 assists assist NNS 40404 328 12 in in IN 40404 328 13 the the DT 40404 328 14 breaking breaking NN 40404 328 15 up up RP 40404 328 16 and and CC 40404 328 17 decay decay VB 40404 328 18 of of IN 40404 328 19 rocks rock NNS 40404 328 20 under under IN 40404 328 21 the the DT 40404 328 22 action action NN 40404 328 23 of of IN 40404 328 24 the the DT 40404 328 25 weather weather NN 40404 328 26 . . . 40404 329 1 Why why WRB 40404 329 2 it -PRON- PRP 40404 329 3 is be VBZ 40404 329 4 a a DT 40404 329 5 good good JJ 40404 329 6 rule rule NN 40404 329 7 of of IN 40404 329 8 stone stone NN 40404 329 9 masons mason NNS 40404 329 10 never never RB 40404 329 11 to to TO 40404 329 12 lay lay VB 40404 329 13 stones stone NNS 40404 329 14 on on IN 40404 329 15 edge edge NN 40404 329 16 , , , 40404 329 17 but but CC 40404 329 18 always always RB 40404 329 19 on on IN 40404 329 20 their -PRON- PRP$ 40404 329 21 natural natural JJ 40404 329 22 bedding bedding NN 40404 329 23 planes plane NNS 40404 329 24 . . . 40404 330 1 Why why WRB 40404 330 2 stones stone NNS 40404 330 3 fresh fresh JJ 40404 330 4 from from IN 40404 330 5 the the DT 40404 330 6 quarry quarry NN 40404 330 7 sometimes sometimes RB 40404 330 8 go go VB 40404 330 9 to to IN 40404 330 10 pieces piece NNS 40404 330 11 in in IN 40404 330 12 early early JJ 40404 330 13 winter winter NN 40404 330 14 , , , 40404 330 15 when when WRB 40404 330 16 stones stone NNS 40404 330 17 which which WDT 40404 330 18 have have VBP 40404 330 19 been be VBN 40404 330 20 quarried quarry VBN 40404 330 21 for for IN 40404 330 22 some some DT 40404 330 23 months month NNS 40404 330 24 remain remain VBP 40404 330 25 uninjured uninjured JJ 40404 330 26 . . . 40404 331 1 Why why WRB 40404 331 2 quarrymen quarryman NNS 40404 331 3 in in IN 40404 331 4 the the DT 40404 331 5 northern northern JJ 40404 331 6 states state NNS 40404 331 7 often often RB 40404 331 8 keep keep VBP 40404 331 9 their -PRON- PRP$ 40404 331 10 quarry quarry JJ 40404 331 11 floors floor NNS 40404 331 12 flooded flood VBN 40404 331 13 during during IN 40404 331 14 winter winter NN 40404 331 15 . . . 40404 332 1 Why why WRB 40404 332 2 laminated laminate VBN 40404 332 3 limestone limestone NN 40404 332 4 should should MD 40404 332 5 not not RB 40404 332 6 be be VB 40404 332 7 used use VBN 40404 332 8 for for IN 40404 332 9 curbstone curbstone NN 40404 332 10 . . . 40404 333 1 Why why WRB 40404 333 2 rocks rock NNS 40404 333 3 composed compose VBN 40404 333 4 of of IN 40404 333 5 layers layer NNS 40404 333 6 differing differ VBG 40404 333 7 in in IN 40404 333 8 fineness fineness NN 40404 333 9 of of IN 40404 333 10 grain grain NN 40404 333 11 and and CC 40404 333 12 in in IN 40404 333 13 ratios ratio NNS 40404 333 14 of of IN 40404 333 15 expansion expansion NN 40404 333 16 do do VBP 40404 333 17 not not RB 40404 333 18 make make VB 40404 333 19 good good JJ 40404 333 20 building building NN 40404 333 21 stone stone NN 40404 333 22 . . . 40404 334 1 Fine fine RB 40404 334 2 - - HYPH 40404 334 3 grained grain VBN 40404 334 4 rocks rock NNS 40404 334 5 with with IN 40404 334 6 pores pore NNS 40404 334 7 so so RB 40404 334 8 small small JJ 40404 334 9 that that IN 40404 334 10 capillary capillary JJ 40404 334 11 attraction attraction NN 40404 334 12 keeps keep VBZ 40404 334 13 the the DT 40404 334 14 water water NN 40404 334 15 which which WDT 40404 334 16 they -PRON- PRP 40404 334 17 contain contain VBP 40404 334 18 from from IN 40404 334 19 readily readily RB 40404 334 20 draining drain VBG 40404 334 21 away away RB 40404 334 22 are be VBP 40404 334 23 more more RBR 40404 334 24 apt apt JJ 40404 334 25 to to TO 40404 334 26 hold hold VB 40404 334 27 their -PRON- PRP$ 40404 334 28 pores pore NNS 40404 334 29 ten ten CD 40404 334 30 elevenths eleventh NNS 40404 334 31 full full JJ 40404 334 32 of of IN 40404 334 33 water water NN 40404 334 34 than than IN 40404 334 35 are be VBP 40404 334 36 rocks rock NNS 40404 334 37 whose whose WP$ 40404 334 38 pores pore NNS 40404 334 39 are be VBP 40404 334 40 larger large JJR 40404 334 41 . . . 40404 335 1 Which which WDT 40404 335 2 , , , 40404 335 3 therefore therefore RB 40404 335 4 , , , 40404 335 5 are be VBP 40404 335 6 more more RBR 40404 335 7 likely likely JJ 40404 335 8 to to TO 40404 335 9 be be VB 40404 335 10 injured injure VBN 40404 335 11 by by IN 40404 335 12 frost frost NN 40404 335 13 ? ? . 40404 336 1 Which which WDT 40404 336 2 is be VBZ 40404 336 3 subject subject JJ 40404 336 4 to to IN 40404 336 5 greater great JJR 40404 336 6 temperature temperature NN 40404 336 7 changes change NNS 40404 336 8 , , , 40404 336 9 a a DT 40404 336 10 dark dark JJ 40404 336 11 rock rock NN 40404 336 12 or or CC 40404 336 13 one one CD 40404 336 14 of of IN 40404 336 15 a a DT 40404 336 16 light light JJ 40404 336 17 color color NN 40404 336 18 ? ? . 40404 337 1 the the DT 40404 337 2 north north NN 40404 337 3 side side NN 40404 337 4 or or CC 40404 337 5 the the DT 40404 337 6 south south JJ 40404 337 7 side side NN 40404 337 8 of of IN 40404 337 9 a a DT 40404 337 10 valley valley NN 40404 337 11 ? ? . 40404 338 1 The the DT 40404 338 2 Mantle Mantle NNP 40404 338 3 of of IN 40404 338 4 Rock Rock NNP 40404 338 5 Waste Waste NNP 40404 338 6 We -PRON- PRP 40404 338 7 have have VBP 40404 338 8 seen see VBN 40404 338 9 that that IN 40404 338 10 rocks rock NNS 40404 338 11 are be VBP 40404 338 12 everywhere everywhere RB 40404 338 13 slowly slowly RB 40404 338 14 wasting waste VBG 40404 338 15 away away RB 40404 338 16 . . . 40404 339 1 They -PRON- PRP 40404 339 2 are be VBP 40404 339 3 broken break VBN 40404 339 4 in in IN 40404 339 5 pieces piece NNS 40404 339 6 by by IN 40404 339 7 frost frost NN 40404 339 8 , , , 40404 339 9 by by IN 40404 339 10 tree tree NN 40404 339 11 roots root NNS 40404 339 12 , , , 40404 339 13 and and CC 40404 339 14 by by IN 40404 339 15 heat heat NN 40404 339 16 and and CC 40404 339 17 cold cold JJ 40404 339 18 . . . 40404 340 1 They -PRON- PRP 40404 340 2 dissolve dissolve VBP 40404 340 3 and and CC 40404 340 4 decompose decompose VBP 40404 340 5 under under IN 40404 340 6 the the DT 40404 340 7 chemical chemical NN 40404 340 8 action action NN 40404 340 9 of of IN 40404 340 10 water water NN 40404 340 11 and and CC 40404 340 12 the the DT 40404 340 13 various various JJ 40404 340 14 corrosive corrosive JJ 40404 340 15 substances substance NNS 40404 340 16 which which WDT 40404 340 17 it -PRON- PRP 40404 340 18 contains contain VBZ 40404 340 19 , , , 40404 340 20 leaving leave VBG 40404 340 21 their -PRON- PRP$ 40404 340 22 insoluble insoluble JJ 40404 340 23 residues residue NNS 40404 340 24 as as IN 40404 340 25 residual residual JJ 40404 340 26 clays clay NNS 40404 340 27 and and CC 40404 340 28 sands sand VBZ 40404 340 29 upon upon IN 40404 340 30 the the DT 40404 340 31 surface surface NN 40404 340 32 . . . 40404 341 1 As as IN 40404 341 2 a a DT 40404 341 3 result result NN 40404 341 4 there there EX 40404 341 5 is be VBZ 40404 341 6 everywhere everywhere RB 40404 341 7 forming form VBG 40404 341 8 a a DT 40404 341 9 mantle mantle NN 40404 341 10 of of IN 40404 341 11 rock rock NN 40404 341 12 waste waste NN 40404 341 13 which which WDT 40404 341 14 covers cover VBZ 40404 341 15 the the DT 40404 341 16 land land NN 40404 341 17 . . . 40404 342 1 It -PRON- PRP 40404 342 2 is be VBZ 40404 342 3 well well JJ 40404 342 4 to to TO 40404 342 5 imagine imagine VB 40404 342 6 how how WRB 40404 342 7 the the DT 40404 342 8 country country NN 40404 342 9 would would MD 40404 342 10 appear appear VB 40404 342 11 were be VBD 40404 342 12 this this DT 40404 342 13 mantle mantle NN 40404 342 14 with with IN 40404 342 15 its -PRON- PRP$ 40404 342 16 soil soil NN 40404 342 17 and and CC 40404 342 18 vegetation vegetation NN 40404 342 19 all all DT 40404 342 20 scraped scrape VBN 40404 342 21 away away RP 40404 342 22 or or CC 40404 342 23 had have VBD 40404 342 24 it -PRON- PRP 40404 342 25 never never RB 40404 342 26 been be VBN 40404 342 27 formed form VBN 40404 342 28 . . . 40404 343 1 The the DT 40404 343 2 surface surface NN 40404 343 3 of of IN 40404 343 4 the the DT 40404 343 5 land land NN 40404 343 6 would would MD 40404 343 7 then then RB 40404 343 8 be be VB 40404 343 9 everywhere everywhere RB 40404 343 10 of of IN 40404 343 11 bare bare JJ 40404 343 12 rock rock NN 40404 343 13 as as RB 40404 343 14 unbroken unbroken JJ 40404 343 15 as as IN 40404 343 16 a a DT 40404 343 17 quarry quarry JJ 40404 343 18 floor floor NN 40404 343 19 . . . 40404 344 1 = = NFP 40404 344 2 The the DT 40404 344 3 thickness thickness NN 40404 344 4 of of IN 40404 344 5 the the DT 40404 344 6 mantle.= mantle.= NN 40404 344 7 In in IN 40404 344 8 any any DT 40404 344 9 locality locality NN 40404 344 10 the the DT 40404 344 11 thickness thickness NN 40404 344 12 of of IN 40404 344 13 the the DT 40404 344 14 mantle mantle NN 40404 344 15 of of IN 40404 344 16 rock rock NN 40404 344 17 waste waste NN 40404 344 18 depends depend VBZ 40404 344 19 as as RB 40404 344 20 much much JJ 40404 344 21 on on IN 40404 344 22 the the DT 40404 344 23 rate rate NN 40404 344 24 at at IN 40404 344 25 which which WDT 40404 344 26 it -PRON- PRP 40404 344 27 is be VBZ 40404 344 28 constantly constantly RB 40404 344 29 being be VBG 40404 344 30 removed remove VBN 40404 344 31 as as IN 40404 344 32 on on IN 40404 344 33 the the DT 40404 344 34 rate rate NN 40404 344 35 at at IN 40404 344 36 which which WDT 40404 344 37 it -PRON- PRP 40404 344 38 is be VBZ 40404 344 39 forming form VBG 40404 344 40 . . . 40404 345 1 On on IN 40404 345 2 the the DT 40404 345 3 face face NN 40404 345 4 of of IN 40404 345 5 cliffs cliff NNS 40404 345 6 it -PRON- PRP 40404 345 7 is be VBZ 40404 345 8 absent absent JJ 40404 345 9 , , , 40404 345 10 for for IN 40404 345 11 here here RB 40404 345 12 waste waste NN 40404 345 13 is be VBZ 40404 345 14 removed remove VBN 40404 345 15 as as RB 40404 345 16 fast fast RB 40404 345 17 as as IN 40404 345 18 it -PRON- PRP 40404 345 19 is be VBZ 40404 345 20 made make VBN 40404 345 21 . . . 40404 346 1 Where where WRB 40404 346 2 waste waste NN 40404 346 3 is be VBZ 40404 346 4 carried carry VBN 40404 346 5 away away RB 40404 346 6 more more RBR 40404 346 7 slowly slowly RB 40404 346 8 than than IN 40404 346 9 it -PRON- PRP 40404 346 10 is be VBZ 40404 346 11 produced produce VBN 40404 346 12 , , , 40404 346 13 it -PRON- PRP 40404 346 14 accumulates accumulate VBZ 40404 346 15 in in IN 40404 346 16 time time NN 40404 346 17 to to IN 40404 346 18 great great JJ 40404 346 19 depth depth NN 40404 346 20 . . . 40404 347 1 The the DT 40404 347 2 granite granite NN 40404 347 3 of of IN 40404 347 4 Pikes Pikes NNP 40404 347 5 Peak Peak NNP 40404 347 6 is be VBZ 40404 347 7 disintegrated disintegrate VBN 40404 347 8 to to IN 40404 347 9 a a DT 40404 347 10 depth depth NN 40404 347 11 of of IN 40404 347 12 twenty twenty CD 40404 347 13 feet foot NNS 40404 347 14 . . . 40404 348 1 In in IN 40404 348 2 the the DT 40404 348 3 city city NN 40404 348 4 of of IN 40404 348 5 Washington Washington NNP 40404 348 6 granite granite NN 40404 348 7 rock rock NN 40404 348 8 is be VBZ 40404 348 9 so so RB 40404 348 10 softened soften VBN 40404 348 11 to to IN 40404 348 12 a a DT 40404 348 13 depth depth NN 40404 348 14 of of IN 40404 348 15 eighty eighty CD 40404 348 16 feet foot NNS 40404 348 17 that that IN 40404 348 18 it -PRON- PRP 40404 348 19 can can MD 40404 348 20 be be VB 40404 348 21 removed remove VBN 40404 348 22 with with IN 40404 348 23 pick pick NN 40404 348 24 and and CC 40404 348 25 shovel shovel NN 40404 348 26 . . . 40404 349 1 About about IN 40404 349 2 Atlanta Atlanta NNP 40404 349 3 , , , 40404 349 4 Georgia Georgia NNP 40404 349 5 , , , 40404 349 6 the the DT 40404 349 7 rocks rock NNS 40404 349 8 are be VBP 40404 349 9 completely completely RB 40404 349 10 rotted rot VBN 40404 349 11 for for IN 40404 349 12 one one CD 40404 349 13 hundred hundred CD 40404 349 14 feet foot NNS 40404 349 15 from from IN 40404 349 16 the the DT 40404 349 17 surface surface NN 40404 349 18 , , , 40404 349 19 while while IN 40404 349 20 the the DT 40404 349 21 beginnings beginning NNS 40404 349 22 of of IN 40404 349 23 decay decay NN 40404 349 24 may may MD 40404 349 25 be be VB 40404 349 26 noticed notice VBN 40404 349 27 at at IN 40404 349 28 thrice thrice NN 40404 349 29 that that DT 40404 349 30 depth depth NN 40404 349 31 . . . 40404 350 1 In in IN 40404 350 2 places place NNS 40404 350 3 in in IN 40404 350 4 southern southern JJ 40404 350 5 Brazil Brazil NNP 40404 350 6 the the DT 40404 350 7 rock rock NN 40404 350 8 is be VBZ 40404 350 9 decomposed decompose VBN 40404 350 10 to to IN 40404 350 11 a a DT 40404 350 12 depth depth NN 40404 350 13 of of IN 40404 350 14 four four CD 40404 350 15 hundred hundred CD 40404 350 16 feet foot NNS 40404 350 17 . . . 40404 351 1 In in IN 40404 351 2 southwestern southwestern JJ 40404 351 3 Wisconsin Wisconsin NNP 40404 351 4 a a DT 40404 351 5 reddish reddish JJ 40404 351 6 residual residual JJ 40404 351 7 clay clay NN 40404 351 8 has have VBZ 40404 351 9 an an DT 40404 351 10 average average JJ 40404 351 11 depth depth NN 40404 351 12 of of IN 40404 351 13 thirteen thirteen CD 40404 351 14 feet foot NNS 40404 351 15 on on IN 40404 351 16 broad broad JJ 40404 351 17 uplands upland NNS 40404 351 18 , , , 40404 351 19 where where WRB 40404 351 20 it -PRON- PRP 40404 351 21 has have VBZ 40404 351 22 been be VBN 40404 351 23 removed remove VBN 40404 351 24 to to IN 40404 351 25 the the DT 40404 351 26 least least JJS 40404 351 27 extent extent NN 40404 351 28 . . . 40404 352 1 The the DT 40404 352 2 country country NN 40404 352 3 rock rock NN 40404 352 4 on on IN 40404 352 5 which which WDT 40404 352 6 it -PRON- PRP 40404 352 7 rests rest VBZ 40404 352 8 is be VBZ 40404 352 9 a a DT 40404 352 10 limestone limestone NN 40404 352 11 with with IN 40404 352 12 about about RB 40404 352 13 ten ten CD 40404 352 14 per per IN 40404 352 15 cent cent NN 40404 352 16 of of IN 40404 352 17 insoluble insoluble JJ 40404 352 18 impurities impurity NNS 40404 352 19 . . . 40404 353 1 At at RB 40404 353 2 least least RBS 40404 353 3 how how WRB 40404 353 4 thick thick JJ 40404 353 5 , , , 40404 353 6 then then RB 40404 353 7 , , , 40404 353 8 was be VBD 40404 353 9 that that DT 40404 353 10 portion portion NN 40404 353 11 of of IN 40404 353 12 the the DT 40404 353 13 limestone limestone NN 40404 353 14 which which WDT 40404 353 15 has have VBZ 40404 353 16 rotted rot VBN 40404 353 17 down down RP 40404 353 18 to to IN 40404 353 19 the the DT 40404 353 20 clay clay NN 40404 353 21 ? ? . 40404 354 1 = = NFP 40404 354 2 Distinguishing distinguish VBG 40404 354 3 characteristics characteristic NNS 40404 354 4 of of IN 40404 354 5 residual residual JJ 40404 354 6 waste.= waste.= NNP 40404 354 7 We -PRON- PRP 40404 354 8 must must MD 40404 354 9 learn learn VB 40404 354 10 to to TO 40404 354 11 distinguish distinguish VB 40404 354 12 waste waste NN 40404 354 13 formed form VBN 40404 354 14 in in IN 40404 354 15 place place NN 40404 354 16 by by IN 40404 354 17 the the DT 40404 354 18 action action NN 40404 354 19 of of IN 40404 354 20 the the DT 40404 354 21 weather weather NN 40404 354 22 from from IN 40404 354 23 the the DT 40404 354 24 products product NNS 40404 354 25 of of IN 40404 354 26 other other JJ 40404 354 27 geological geological JJ 40404 354 28 agencies agency NNS 40404 354 29 . . . 40404 355 1 Residual residual JJ 40404 355 2 waste waste NN 40404 355 3 is be VBZ 40404 355 4 unstratified unstratified JJ 40404 355 5 . . . 40404 356 1 It -PRON- PRP 40404 356 2 contains contain VBZ 40404 356 3 no no DT 40404 356 4 substances substance NNS 40404 356 5 which which WDT 40404 356 6 have have VBP 40404 356 7 not not RB 40404 356 8 been be VBN 40404 356 9 derived derive VBN 40404 356 10 from from IN 40404 356 11 the the DT 40404 356 12 weathering weathering NN 40404 356 13 of of IN 40404 356 14 the the DT 40404 356 15 parent parent NN 40404 356 16 rock rock NN 40404 356 17 . . . 40404 357 1 There there EX 40404 357 2 is be VBZ 40404 357 3 a a DT 40404 357 4 gradual gradual JJ 40404 357 5 transition transition NN 40404 357 6 from from IN 40404 357 7 residual residual JJ 40404 357 8 waste waste NN 40404 357 9 into into IN 40404 357 10 the the DT 40404 357 11 unweathered unweathered JJ 40404 357 12 rock rock NN 40404 357 13 beneath beneath RB 40404 357 14 . . . 40404 358 1 Waste waste NN 40404 358 2 resting rest VBG 40404 358 3 on on IN 40404 358 4 sound sound JJ 40404 358 5 rock rock NN 40404 358 6 evidently evidently RB 40404 358 7 has have VBZ 40404 358 8 been be VBN 40404 358 9 shifted shift VBN 40404 358 10 and and CC 40404 358 11 was be VBD 40404 358 12 not not RB 40404 358 13 formed form VBN 40404 358 14 in in IN 40404 358 15 place place NN 40404 358 16 . . . 40404 359 1 In in IN 40404 359 2 certain certain JJ 40404 359 3 regions region NNS 40404 359 4 of of IN 40404 359 5 southern southern JJ 40404 359 6 Missouri Missouri NNP 40404 359 7 the the DT 40404 359 8 land land NN 40404 359 9 is be VBZ 40404 359 10 covered cover VBN 40404 359 11 with with IN 40404 359 12 a a DT 40404 359 13 layer layer NN 40404 359 14 of of IN 40404 359 15 broken broken JJ 40404 359 16 flints flint NNS 40404 359 17 and and CC 40404 359 18 red red JJ 40404 359 19 clay clay NN 40404 359 20 , , , 40404 359 21 while while IN 40404 359 22 the the DT 40404 359 23 country country NN 40404 359 24 rock rock NN 40404 359 25 is be VBZ 40404 359 26 limestone limestone NN 40404 359 27 . . . 40404 360 1 The the DT 40404 360 2 limestone limestone NN 40404 360 3 contains contain VBZ 40404 360 4 nodules nodule NNS 40404 360 5 of of IN 40404 360 6 flint flint NN 40404 360 7 , , , 40404 360 8 and and CC 40404 360 9 we -PRON- PRP 40404 360 10 may may MD 40404 360 11 infer infer VB 40404 360 12 that that IN 40404 360 13 it -PRON- PRP 40404 360 14 has have VBZ 40404 360 15 been be VBN 40404 360 16 by by IN 40404 360 17 the the DT 40404 360 18 decay decay NN 40404 360 19 and and CC 40404 360 20 removal removal NN 40404 360 21 of of IN 40404 360 22 thick thick JJ 40404 360 23 masses masse NNS 40404 360 24 of of IN 40404 360 25 limestone limestone NN 40404 360 26 that that IN 40404 360 27 the the DT 40404 360 28 residual residual JJ 40404 360 29 layer layer NN 40404 360 30 of of IN 40404 360 31 clay clay NN 40404 360 32 and and CC 40404 360 33 flints flint NNS 40404 360 34 has have VBZ 40404 360 35 been be VBN 40404 360 36 left leave VBN 40404 360 37 upon upon IN 40404 360 38 the the DT 40404 360 39 surface surface NN 40404 360 40 . . . 40404 361 1 Flint Flint NNP 40404 361 2 is be VBZ 40404 361 3 a a DT 40404 361 4 form form NN 40404 361 5 of of IN 40404 361 6 quartz quartz NN 40404 361 7 , , , 40404 361 8 dull dull JJ 40404 361 9 - - HYPH 40404 361 10 lustered lustered JJ 40404 361 11 , , , 40404 361 12 usually usually RB 40404 361 13 gray gray JJ 40404 361 14 or or CC 40404 361 15 blackish blackish VBP 40404 361 16 in in IN 40404 361 17 color color NN 40404 361 18 , , , 40404 361 19 and and CC 40404 361 20 opaque opaque RB 40404 361 21 except except IN 40404 361 22 on on IN 40404 361 23 thinnest thin JJS 40404 361 24 edges edge NNS 40404 361 25 , , , 40404 361 26 where where WRB 40404 361 27 it -PRON- PRP 40404 361 28 is be VBZ 40404 361 29 translucent translucent JJ 40404 361 30 . . . 40404 362 1 Over over IN 40404 362 2 much much JJ 40404 362 3 of of IN 40404 362 4 the the DT 40404 362 5 northern northern JJ 40404 362 6 states state NNS 40404 362 7 there there EX 40404 362 8 is be VBZ 40404 362 9 spread spread VBN 40404 362 10 an an DT 40404 362 11 unstratified unstratified JJ 40404 362 12 stony stony NN 40404 362 13 clay clay NN 40404 362 14 called call VBD 40404 362 15 the the DT 40404 362 16 _ _ NNP 40404 362 17 drift drift NN 40404 362 18 _ _ NNP 40404 362 19 . . . 40404 363 1 It -PRON- PRP 40404 363 2 often often RB 40404 363 3 rests rest VBZ 40404 363 4 on on IN 40404 363 5 sound sound JJ 40404 363 6 rocks rock NNS 40404 363 7 . . . 40404 364 1 It -PRON- PRP 40404 364 2 contains contain VBZ 40404 364 3 grains grain NNS 40404 364 4 of of IN 40404 364 5 sand sand NN 40404 364 6 , , , 40404 364 7 pebbles pebble NNS 40404 364 8 , , , 40404 364 9 and and CC 40404 364 10 bowlders bowlder NNS 40404 364 11 composed compose VBN 40404 364 12 of of IN 40404 364 13 many many JJ 40404 364 14 different different JJ 40404 364 15 minerals mineral NNS 40404 364 16 and and CC 40404 364 17 rocks rock NNS 40404 364 18 that that IN 40404 364 19 the the DT 40404 364 20 country country NN 40404 364 21 rock rock NN 40404 364 22 can can MD 40404 364 23 not not RB 40404 364 24 furnish furnish VB 40404 364 25 . . . 40404 365 1 Hence hence RB 40404 365 2 the the DT 40404 365 3 drift drift NN 40404 365 4 can can MD 40404 365 5 not not RB 40404 365 6 have have VB 40404 365 7 been be VBN 40404 365 8 formed form VBN 40404 365 9 by by IN 40404 365 10 the the DT 40404 365 11 decay decay NN 40404 365 12 of of IN 40404 365 13 the the DT 40404 365 14 rock rock NN 40404 365 15 of of IN 40404 365 16 the the DT 40404 365 17 region region NN 40404 365 18 . . . 40404 366 1 A a DT 40404 366 2 shale shale NN 40404 366 3 or or CC 40404 366 4 limestone limestone NN 40404 366 5 , , , 40404 366 6 for for IN 40404 366 7 example example NN 40404 366 8 , , , 40404 366 9 can can MD 40404 366 10 not not RB 40404 366 11 waste waste VB 40404 366 12 to to IN 40404 366 13 a a DT 40404 366 14 clay clay NN 40404 366 15 containing contain VBG 40404 366 16 granite granite NN 40404 366 17 pebbles pebble NNS 40404 366 18 . . . 40404 367 1 The the DT 40404 367 2 origin origin NN 40404 367 3 of of IN 40404 367 4 the the DT 40404 367 5 drift drift NN 40404 367 6 will will MD 40404 367 7 be be VB 40404 367 8 explained explain VBN 40404 367 9 in in IN 40404 367 10 subsequent subsequent JJ 40404 367 11 chapters chapter NNS 40404 367 12 . . . 40404 368 1 The the DT 40404 368 2 differences difference NNS 40404 368 3 in in IN 40404 368 4 rocks rock NNS 40404 368 5 are be VBP 40404 368 6 due due JJ 40404 368 7 more more JJR 40404 368 8 to to IN 40404 368 9 their -PRON- PRP$ 40404 368 10 soluble soluble JJ 40404 368 11 than than IN 40404 368 12 to to IN 40404 368 13 their -PRON- PRP$ 40404 368 14 insoluble insoluble JJ 40404 368 15 constituents constituent NNS 40404 368 16 . . . 40404 369 1 The the DT 40404 369 2 latter latter JJ 40404 369 3 are be VBP 40404 369 4 few few JJ 40404 369 5 in in IN 40404 369 6 number number NN 40404 369 7 and and CC 40404 369 8 are be VBP 40404 369 9 much much RB 40404 369 10 the the DT 40404 369 11 same same JJ 40404 369 12 in in IN 40404 369 13 rocks rock NNS 40404 369 14 of of IN 40404 369 15 widely widely RB 40404 369 16 different different JJ 40404 369 17 nature nature NN 40404 369 18 , , , 40404 369 19 being be VBG 40404 369 20 chiefly chiefly RB 40404 369 21 quartz quartz NN 40404 369 22 , , , 40404 369 23 silicate silicate NN 40404 369 24 of of IN 40404 369 25 alumina alumina NNP 40404 369 26 , , , 40404 369 27 and and CC 40404 369 28 iron iron NN 40404 369 29 oxide oxide NN 40404 369 30 . . . 40404 370 1 By by IN 40404 370 2 the the DT 40404 370 3 removal removal NN 40404 370 4 of of IN 40404 370 5 their -PRON- PRP$ 40404 370 6 soluble soluble JJ 40404 370 7 parts part NNS 40404 370 8 very very RB 40404 370 9 many many JJ 40404 370 10 and and CC 40404 370 11 widely widely RB 40404 370 12 different different JJ 40404 370 13 rocks rock NNS 40404 370 14 rot rot VBP 40404 370 15 down down RP 40404 370 16 to to IN 40404 370 17 a a DT 40404 370 18 residual residual JJ 40404 370 19 clay clay NN 40404 370 20 gritty gritty NN 40404 370 21 with with IN 40404 370 22 particles particle NNS 40404 370 23 of of IN 40404 370 24 quartz quartz NN 40404 370 25 and and CC 40404 370 26 colored color VBD 40404 370 27 red red JJ 40404 370 28 or or CC 40404 370 29 yellow yellow NN 40404 370 30 with with IN 40404 370 31 iron iron NN 40404 370 32 oxide oxide NN 40404 370 33 . . . 40404 371 1 In in IN 40404 371 2 a a DT 40404 371 3 broad broad JJ 40404 371 4 way way NN 40404 371 5 the the DT 40404 371 6 changes change NNS 40404 371 7 which which WDT 40404 371 8 rocks rock VBZ 40404 371 9 undergo undergo VBP 40404 371 10 in in IN 40404 371 11 weathering weathering NN 40404 371 12 are be VBP 40404 371 13 an an DT 40404 371 14 adaptation adaptation NN 40404 371 15 to to IN 40404 371 16 the the DT 40404 371 17 environment environment NN 40404 371 18 in in IN 40404 371 19 which which WDT 40404 371 20 they -PRON- PRP 40404 371 21 find find VBP 40404 371 22 themselves -PRON- PRP 40404 371 23 at at IN 40404 371 24 the the DT 40404 371 25 earth earth NN 40404 371 26 's 's POS 40404 371 27 surface,--an surface,--an NNP 40404 371 28 environment environment NN 40404 371 29 different different JJ 40404 371 30 from from IN 40404 371 31 that that DT 40404 371 32 in in IN 40404 371 33 which which WDT 40404 371 34 they -PRON- PRP 40404 371 35 were be VBD 40404 371 36 formed form VBN 40404 371 37 under under IN 40404 371 38 sea sea NN 40404 371 39 or or CC 40404 371 40 under under IN 40404 371 41 ground ground NN 40404 371 42 . . . 40404 372 1 In in IN 40404 372 2 open open JJ 40404 372 3 air air NN 40404 372 4 , , , 40404 372 5 where where WRB 40404 372 6 they -PRON- PRP 40404 372 7 are be VBP 40404 372 8 attacked attack VBN 40404 372 9 by by IN 40404 372 10 various various JJ 40404 372 11 destructive destructive JJ 40404 372 12 agents agent NNS 40404 372 13 , , , 40404 372 14 few few JJ 40404 372 15 of of IN 40404 372 16 the the DT 40404 372 17 rock rock NN 40404 372 18 - - HYPH 40404 372 19 making make VBG 40404 372 20 minerals mineral NNS 40404 372 21 are be VBP 40404 372 22 stable stable JJ 40404 372 23 compounds compound NNS 40404 372 24 except except IN 40404 372 25 quartz quartz NN 40404 372 26 , , , 40404 372 27 the the DT 40404 372 28 iron iron NN 40404 372 29 oxides oxide NNS 40404 372 30 , , , 40404 372 31 and and CC 40404 372 32 the the DT 40404 372 33 silicate silicate NN 40404 372 34 of of IN 40404 372 35 alumina alumina NNP 40404 372 36 ; ; : 40404 372 37 and and CC 40404 372 38 so so RB 40404 372 39 it -PRON- PRP 40404 372 40 is be VBZ 40404 372 41 to to IN 40404 372 42 one one CD 40404 372 43 or or CC 40404 372 44 more more JJR 40404 372 45 of of IN 40404 372 46 these these DT 40404 372 47 comparatively comparatively RB 40404 372 48 insoluble insoluble JJ 40404 372 49 substances substance NNS 40404 372 50 that that IN 40404 372 51 most most JJS 40404 372 52 rocks rock NNS 40404 372 53 are be VBP 40404 372 54 reduced reduce VBN 40404 372 55 by by IN 40404 372 56 long long JJ 40404 372 57 decay decay NN 40404 372 58 . . . 40404 373 1 Which which WDT 40404 373 2 produces produce VBZ 40404 373 3 a a DT 40404 373 4 mantle mantle NN 40404 373 5 of of IN 40404 373 6 finer fine JJR 40404 373 7 waste waste NN 40404 373 8 , , , 40404 373 9 frost frost NN 40404 373 10 or or CC 40404 373 11 chemical chemical NN 40404 373 12 decay decay NN 40404 373 13 ? ? . 40404 374 1 which which WDT 40404 374 2 a a DT 40404 374 3 thicker thick JJR 40404 374 4 mantle mantle NN 40404 374 5 ? ? . 40404 375 1 In in IN 40404 375 2 what what WDT 40404 375 3 respects respect NNS 40404 375 4 would would MD 40404 375 5 you -PRON- PRP 40404 375 6 expect expect VB 40404 375 7 that that IN 40404 375 8 the the DT 40404 375 9 mantle mantle NN 40404 375 10 of of IN 40404 375 11 waste waste NN 40404 375 12 would would MD 40404 375 13 differ differ VB 40404 375 14 in in IN 40404 375 15 warm warm JJ 40404 375 16 humid humid NN 40404 375 17 lands land NNS 40404 375 18 like like IN 40404 375 19 India India NNP 40404 375 20 , , , 40404 375 21 in in IN 40404 375 22 frozen frozen JJ 40404 375 23 countries country NNS 40404 375 24 like like IN 40404 375 25 Alaska Alaska NNP 40404 375 26 , , , 40404 375 27 and and CC 40404 375 28 in in IN 40404 375 29 deserts desert NNS 40404 375 30 such such JJ 40404 375 31 as as IN 40404 375 32 the the DT 40404 375 33 Sahara Sahara NNP 40404 375 34 ? ? . 40404 376 1 = = NFP 40404 376 2 The the DT 40404 376 3 soil.= soil.= NNS 40404 376 4 The the DT 40404 376 5 same same JJ 40404 376 6 agencies agency NNS 40404 376 7 which which WDT 40404 376 8 produce produce VBP 40404 376 9 the the DT 40404 376 10 mantle mantle NN 40404 376 11 of of IN 40404 376 12 waste waste NN 40404 376 13 are be VBP 40404 376 14 continually continually RB 40404 376 15 at at IN 40404 376 16 work work NN 40404 376 17 upon upon IN 40404 376 18 it -PRON- PRP 40404 376 19 , , , 40404 376 20 breaking break VBG 40404 376 21 it -PRON- PRP 40404 376 22 up up RP 40404 376 23 into into IN 40404 376 24 finer finer NN 40404 376 25 and and CC 40404 376 26 finer finer NN 40404 376 27 particles particle NNS 40404 376 28 and and CC 40404 376 29 causing cause VBG 40404 376 30 its -PRON- PRP$ 40404 376 31 more more RBR 40404 376 32 complete complete JJ 40404 376 33 decay decay NN 40404 376 34 . . . 40404 377 1 Thus thus RB 40404 377 2 on on IN 40404 377 3 the the DT 40404 377 4 surface surface NN 40404 377 5 , , , 40404 377 6 where where WRB 40404 377 7 the the DT 40404 377 8 waste waste NN 40404 377 9 has have VBZ 40404 377 10 weathered weather VBN 40404 377 11 longest long RBS 40404 377 12 , , , 40404 377 13 it -PRON- PRP 40404 377 14 is be VBZ 40404 377 15 gradually gradually RB 40404 377 16 made make VBN 40404 377 17 fine fine JJ 40404 377 18 enough enough RB 40404 377 19 to to TO 40404 377 20 support support VB 40404 377 21 the the DT 40404 377 22 growth growth NN 40404 377 23 of of IN 40404 377 24 plants plant NNS 40404 377 25 , , , 40404 377 26 and and CC 40404 377 27 is be VBZ 40404 377 28 then then RB 40404 377 29 known know VBN 40404 377 30 as as IN 40404 377 31 _ _ NNP 40404 377 32 soil soil NN 40404 377 33 _ _ NNP 40404 377 34 . . . 40404 378 1 The the DT 40404 378 2 coarser coarser NN 40404 378 3 waste waste NN 40404 378 4 beneath beneath NN 40404 378 5 is be VBZ 40404 378 6 sometimes sometimes RB 40404 378 7 spoken speak VBN 40404 378 8 of of IN 40404 378 9 as as IN 40404 378 10 subsoil subsoil NN 40404 378 11 . . . 40404 379 1 Soil Soil NNP 40404 379 2 usually usually RB 40404 379 3 contains contain VBZ 40404 379 4 more more JJR 40404 379 5 or or CC 40404 379 6 less less RBR 40404 379 7 dark dark JJ 40404 379 8 , , , 40404 379 9 carbonaceous carbonaceous JJ 40404 379 10 , , , 40404 379 11 decaying decay VBG 40404 379 12 organic organic JJ 40404 379 13 matter matter NN 40404 379 14 , , , 40404 379 15 called call VBD 40404 379 16 humus humus NNP 40404 379 17 , , , 40404 379 18 and and CC 40404 379 19 is be VBZ 40404 379 20 then then RB 40404 379 21 often often RB 40404 379 22 termed term VBN 40404 379 23 the the DT 40404 379 24 _ _ NNP 40404 379 25 humus humus NNP 40404 379 26 layer layer NN 40404 379 27 _ _ NNP 40404 379 28 . . . 40404 380 1 Soil soil NN 40404 380 2 forms form NNS 40404 380 3 not not RB 40404 380 4 only only RB 40404 380 5 on on IN 40404 380 6 waste waste NN 40404 380 7 produced produce VBN 40404 380 8 in in IN 40404 380 9 place place NN 40404 380 10 from from IN 40404 380 11 the the DT 40404 380 12 rock rock NN 40404 380 13 beneath beneath RB 40404 380 14 , , , 40404 380 15 but but CC 40404 380 16 also also RB 40404 380 17 on on IN 40404 380 18 materials material NNS 40404 380 19 which which WDT 40404 380 20 have have VBP 40404 380 21 been be VBN 40404 380 22 transported transport VBN 40404 380 23 , , , 40404 380 24 such such JJ 40404 380 25 as as IN 40404 380 26 sheets sheet NNS 40404 380 27 of of IN 40404 380 28 glacial glacial JJ 40404 380 29 drift drift NN 40404 380 30 and and CC 40404 380 31 river river NN 40404 380 32 deposits deposit NNS 40404 380 33 . . . 40404 381 1 Until until IN 40404 381 2 rocks rock NNS 40404 381 3 are be VBP 40404 381 4 reduced reduce VBN 40404 381 5 to to IN 40404 381 6 residual residual JJ 40404 381 7 clays clay NNS 40404 381 8 the the DT 40404 381 9 work work NN 40404 381 10 of of IN 40404 381 11 the the DT 40404 381 12 weather weather NN 40404 381 13 is be VBZ 40404 381 14 more more RBR 40404 381 15 rapid rapid JJ 40404 381 16 and and CC 40404 381 17 effective effective JJ 40404 381 18 on on IN 40404 381 19 the the DT 40404 381 20 fragments fragment NNS 40404 381 21 of of IN 40404 381 22 the the DT 40404 381 23 mantle mantle NN 40404 381 24 of of IN 40404 381 25 waste waste NN 40404 381 26 than than IN 40404 381 27 on on IN 40404 381 28 the the DT 40404 381 29 rocks rock NNS 40404 381 30 from from IN 40404 381 31 which which WDT 40404 381 32 waste waste NN 40404 381 33 is be VBZ 40404 381 34 being be VBG 40404 381 35 formed form VBN 40404 381 36 . . . 40404 382 1 Why why WRB 40404 382 2 ? ? . 40404 383 1 Any any DT 40404 383 2 fresh fresh JJ 40404 383 3 excavation excavation NN 40404 383 4 of of IN 40404 383 5 cellar cellar NN 40404 383 6 or or CC 40404 383 7 cistern cistern NN 40404 383 8 , , , 40404 383 9 or or CC 40404 383 10 cut cut VBN 40404 383 11 for for IN 40404 383 12 road road NN 40404 383 13 or or CC 40404 383 14 railway railway NN 40404 383 15 , , , 40404 383 16 will will MD 40404 383 17 show show VB 40404 383 18 the the DT 40404 383 19 characteristics characteristic NNS 40404 383 20 of of IN 40404 383 21 the the DT 40404 383 22 humus humus NNP 40404 383 23 layer layer NN 40404 383 24 . . . 40404 384 1 It -PRON- PRP 40404 384 2 may may MD 40404 384 3 form form VB 40404 384 4 only only RB 40404 384 5 a a DT 40404 384 6 gray gray JJ 40404 384 7 film film NN 40404 384 8 on on IN 40404 384 9 the the DT 40404 384 10 surface surface NN 40404 384 11 , , , 40404 384 12 or or CC 40404 384 13 we -PRON- PRP 40404 384 14 may may MD 40404 384 15 find find VB 40404 384 16 it -PRON- PRP 40404 384 17 a a DT 40404 384 18 layer layer NN 40404 384 19 a a DT 40404 384 20 foot foot NN 40404 384 21 or or CC 40404 384 22 more more RBR 40404 384 23 thick thick JJ 40404 384 24 , , , 40404 384 25 dark dark JJ 40404 384 26 , , , 40404 384 27 or or CC 40404 384 28 even even RB 40404 384 29 black black JJ 40404 384 30 , , , 40404 384 31 above above RB 40404 384 32 , , , 40404 384 33 and and CC 40404 384 34 growing grow VBG 40404 384 35 gradually gradually RB 40404 384 36 lighter light JJR 40404 384 37 in in IN 40404 384 38 color color NN 40404 384 39 as as IN 40404 384 40 it -PRON- PRP 40404 384 41 passes pass VBZ 40404 384 42 by by IN 40404 384 43 insensible insensible JJ 40404 384 44 gradations gradation NNS 40404 384 45 into into IN 40404 384 46 the the DT 40404 384 47 subsoil subsoil NN 40404 384 48 . . . 40404 385 1 In in IN 40404 385 2 some some DT 40404 385 3 way way NN 40404 385 4 the the DT 40404 385 5 decaying decay VBG 40404 385 6 vegetable vegetable NN 40404 385 7 matter matter NN 40404 385 8 continually continually RB 40404 385 9 forming form VBG 40404 385 10 on on IN 40404 385 11 the the DT 40404 385 12 surface surface NN 40404 385 13 has have VBZ 40404 385 14 become become VBN 40404 385 15 mingled mingle VBN 40404 385 16 with with IN 40404 385 17 the the DT 40404 385 18 material material NN 40404 385 19 beneath beneath IN 40404 385 20 it -PRON- PRP 40404 385 21 . . . 40404 386 1 = = NFP 40404 386 2 How how WRB 40404 386 3 humus humus NNP 40404 386 4 and and CC 40404 386 5 the the DT 40404 386 6 subsoil subsoil NN 40404 386 7 are be VBP 40404 386 8 mingled.= mingled.= `` 40404 386 9 The the DT 40404 386 10 mingling mingling NN 40404 386 11 of of IN 40404 386 12 humus humus NN 40404 386 13 and and CC 40404 386 14 the the DT 40404 386 15 subsoil subsoil NN 40404 386 16 is be VBZ 40404 386 17 brought bring VBN 40404 386 18 about about RP 40404 386 19 by by IN 40404 386 20 several several JJ 40404 386 21 means mean NNS 40404 386 22 . . . 40404 387 1 The the DT 40404 387 2 roots root NNS 40404 387 3 of of IN 40404 387 4 plants plant NNS 40404 387 5 penetrate penetrate VBP 40404 387 6 the the DT 40404 387 7 waste waste NN 40404 387 8 , , , 40404 387 9 and and CC 40404 387 10 when when WRB 40404 387 11 they -PRON- PRP 40404 387 12 die die VBP 40404 387 13 leave leave VB 40404 387 14 their -PRON- PRP$ 40404 387 15 decaying decay VBG 40404 387 16 substance substance NN 40404 387 17 to to TO 40404 387 18 fertilize fertilize VB 40404 387 19 it -PRON- PRP 40404 387 20 . . . 40404 388 1 Leaves leave NNS 40404 388 2 and and CC 40404 388 3 stems stem VBZ 40404 388 4 falling fall VBG 40404 388 5 on on IN 40404 388 6 the the DT 40404 388 7 surface surface NN 40404 388 8 are be VBP 40404 388 9 turned turn VBN 40404 388 10 under under RP 40404 388 11 by by IN 40404 388 12 several several JJ 40404 388 13 agents agent NNS 40404 388 14 . . . 40404 389 1 Earthworms earthworm NNS 40404 389 2 and and CC 40404 389 3 other other JJ 40404 389 4 animals animal NNS 40404 389 5 whose whose WP$ 40404 389 6 home home NN 40404 389 7 is be VBZ 40404 389 8 in in IN 40404 389 9 the the DT 40404 389 10 waste waste NN 40404 389 11 drag drag VB 40404 389 12 them -PRON- PRP 40404 389 13 into into IN 40404 389 14 their -PRON- PRP$ 40404 389 15 burrows burrow NNS 40404 389 16 either either CC 40404 389 17 for for IN 40404 389 18 food food NN 40404 389 19 or or CC 40404 389 20 to to TO 40404 389 21 line line VB 40404 389 22 their -PRON- PRP$ 40404 389 23 nests nest NNS 40404 389 24 . . . 40404 390 1 Trees tree NNS 40404 390 2 overthrown overthrow VBN 40404 390 3 by by IN 40404 390 4 the the DT 40404 390 5 wind wind NN 40404 390 6 , , , 40404 390 7 roots root NNS 40404 390 8 and and CC 40404 390 9 all all DT 40404 390 10 , , , 40404 390 11 turn turn VB 40404 390 12 over over RP 40404 390 13 the the DT 40404 390 14 soil soil NN 40404 390 15 and and CC 40404 390 16 subsoil subsoil NN 40404 390 17 and and CC 40404 390 18 mingle mingle VB 40404 390 19 them -PRON- PRP 40404 390 20 together together RB 40404 390 21 . . . 40404 391 1 Bacteria Bacteria NNS 40404 391 2 also also RB 40404 391 3 work work VBP 40404 391 4 in in IN 40404 391 5 the the DT 40404 391 6 waste waste NN 40404 391 7 and and CC 40404 391 8 contribute contribute VB 40404 391 9 to to IN 40404 391 10 its -PRON- PRP$ 40404 391 11 enrichment enrichment NN 40404 391 12 . . . 40404 392 1 The the DT 40404 392 2 animals animal NNS 40404 392 3 living live VBG 40404 392 4 in in IN 40404 392 5 the the DT 40404 392 6 mantle mantle NN 40404 392 7 do do VBP 40404 392 8 much much JJ 40404 392 9 in in IN 40404 392 10 other other JJ 40404 392 11 ways way NNS 40404 392 12 toward toward IN 40404 392 13 the the DT 40404 392 14 making making NN 40404 392 15 of of IN 40404 392 16 soil soil NN 40404 392 17 . . . 40404 393 1 They -PRON- PRP 40404 393 2 bring bring VBP 40404 393 3 the the DT 40404 393 4 coarser coarser NN 40404 393 5 fragments fragment NNS 40404 393 6 from from IN 40404 393 7 beneath beneath NNP 40404 393 8 to to IN 40404 393 9 the the DT 40404 393 10 surface surface NN 40404 393 11 , , , 40404 393 12 where where WRB 40404 393 13 the the DT 40404 393 14 waste waste NN 40404 393 15 weathers weather VBZ 40404 393 16 more more RBR 40404 393 17 rapidly rapidly RB 40404 393 18 . . . 40404 394 1 Their -PRON- PRP$ 40404 394 2 burrows burrow NNS 40404 394 3 allow allow VBP 40404 394 4 air air NN 40404 394 5 and and CC 40404 394 6 water water NN 40404 394 7 to to TO 40404 394 8 penetrate penetrate VB 40404 394 9 the the DT 40404 394 10 waste waste NN 40404 394 11 more more RBR 40404 394 12 freely freely RB 40404 394 13 and and CC 40404 394 14 to to TO 40404 394 15 affect affect VB 40404 394 16 it -PRON- PRP 40404 394 17 to to IN 40404 394 18 greater great JJR 40404 394 19 depths depth NNS 40404 394 20 . . . 40404 395 1 = = NFP 40404 395 2 Ants.= ants.= ADD 40404 395 3 In in IN 40404 395 4 the the DT 40404 395 5 tropics tropic NNS 40404 395 6 the the DT 40404 395 7 mantle mantle NN 40404 395 8 of of IN 40404 395 9 waste waste NN 40404 395 10 is be VBZ 40404 395 11 worked work VBN 40404 395 12 over over IN 40404 395 13 chiefly chiefly RB 40404 395 14 by by IN 40404 395 15 ants ant NNS 40404 395 16 . . . 40404 396 1 They -PRON- PRP 40404 396 2 excavate excavate VBP 40404 396 3 underground underground JJ 40404 396 4 galleries gallery NNS 40404 396 5 and and CC 40404 396 6 chambers chamber NNS 40404 396 7 , , , 40404 396 8 extending extend VBG 40404 396 9 sometimes sometimes RB 40404 396 10 as as RB 40404 396 11 much much JJ 40404 396 12 as as IN 40404 396 13 fourteen fourteen CD 40404 396 14 feet foot NNS 40404 396 15 below below IN 40404 396 16 the the DT 40404 396 17 surface surface NN 40404 396 18 , , , 40404 396 19 and and CC 40404 396 20 build build VB 40404 396 21 mounds mound NNS 40404 396 22 which which WDT 40404 396 23 may may MD 40404 396 24 reach reach VB 40404 396 25 as as RB 40404 396 26 high high JJ 40404 396 27 above above IN 40404 396 28 it -PRON- PRP 40404 396 29 . . . 40404 397 1 In in IN 40404 397 2 some some DT 40404 397 3 parts part NNS 40404 397 4 of of IN 40404 397 5 Paraguay Paraguay NNP 40404 397 6 and and CC 40404 397 7 southern southern JJ 40404 397 8 Brazil Brazil NNP 40404 397 9 these these DT 40404 397 10 mounds mound NNS 40404 397 11 , , , 40404 397 12 like like IN 40404 397 13 gigantic gigantic JJ 40404 397 14 potato potato NN 40404 397 15 hills hill NNS 40404 397 16 , , , 40404 397 17 cover cover VB 40404 397 18 tracts tract NNS 40404 397 19 of of IN 40404 397 20 considerable considerable JJ 40404 397 21 area area NN 40404 397 22 . . . 40404 398 1 In in IN 40404 398 2 search search NN 40404 398 3 for for IN 40404 398 4 its -PRON- PRP$ 40404 398 5 food food NN 40404 398 6 -- -- : 40404 398 7 the the DT 40404 398 8 dead dead JJ 40404 398 9 wood wood NN 40404 398 10 of of IN 40404 398 11 trees tree NNS 40404 398 12 -- -- : 40404 398 13 the the DT 40404 398 14 so so RB 40404 398 15 - - HYPH 40404 398 16 called call VBN 40404 398 17 white white JJ 40404 398 18 ant ant NNP 40404 398 19 constructs constructs NNP 40404 398 20 runways runway NNS 40404 398 21 of of IN 40404 398 22 earth earth NN 40404 398 23 about about IN 40404 398 24 the the DT 40404 398 25 size size NN 40404 398 26 of of IN 40404 398 27 gas gas NN 40404 398 28 pipes pipe NNS 40404 398 29 , , , 40404 398 30 reaching reach VBG 40404 398 31 from from IN 40404 398 32 the the DT 40404 398 33 base base NN 40404 398 34 of of IN 40404 398 35 the the DT 40404 398 36 tree tree NN 40404 398 37 to to IN 40404 398 38 the the DT 40404 398 39 topmost topmost JJS 40404 398 40 branches branch NNS 40404 398 41 . . . 40404 399 1 On on IN 40404 399 2 the the DT 40404 399 3 plateaus plateaus NN 40404 399 4 of of IN 40404 399 5 central central JJ 40404 399 6 Africa Africa NNP 40404 399 7 explorers explorer NNS 40404 399 8 have have VBP 40404 399 9 walked walk VBD 40404 399 10 for for IN 40404 399 11 miles mile NNS 40404 399 12 through through IN 40404 399 13 forests forest NNS 40404 399 14 every every DT 40404 399 15 tree tree NN 40404 399 16 of of IN 40404 399 17 which which WDT 40404 399 18 was be VBD 40404 399 19 plastered plaster VBN 40404 399 20 with with IN 40404 399 21 these these DT 40404 399 22 galleries gallery NNS 40404 399 23 of of IN 40404 399 24 mud mud NN 40404 399 25 . . . 40404 400 1 Each each DT 40404 400 2 grain grain NN 40404 400 3 of of IN 40404 400 4 earth earth NN 40404 400 5 used use VBN 40404 400 6 in in IN 40404 400 7 their -PRON- PRP$ 40404 400 8 construction construction NN 40404 400 9 is be VBZ 40404 400 10 moistened moisten VBN 40404 400 11 and and CC 40404 400 12 cemented cement VBN 40404 400 13 by by IN 40404 400 14 slime slime NN 40404 400 15 as as IN 40404 400 16 it -PRON- PRP 40404 400 17 is be VBZ 40404 400 18 laid lay VBN 40404 400 19 in in IN 40404 400 20 place place NN 40404 400 21 by by IN 40404 400 22 the the DT 40404 400 23 ant ant NN 40404 400 24 , , , 40404 400 25 and and CC 40404 400 26 is be VBZ 40404 400 27 thus thus RB 40404 400 28 acted act VBN 40404 400 29 on on IN 40404 400 30 by by IN 40404 400 31 organic organic JJ 40404 400 32 chemical chemical NN 40404 400 33 agents agent NNS 40404 400 34 . . . 40404 401 1 Sooner soon RBR 40404 401 2 or or CC 40404 401 3 later later RB 40404 401 4 these these DT 40404 401 5 galleries gallery NNS 40404 401 6 are be VBP 40404 401 7 beaten beat VBN 40404 401 8 down down RP 40404 401 9 by by IN 40404 401 10 heavy heavy JJ 40404 401 11 rains rain NNS 40404 401 12 , , , 40404 401 13 and and CC 40404 401 14 their -PRON- PRP$ 40404 401 15 fertilizing fertilizing NN 40404 401 16 substances substance NNS 40404 401 17 are be VBP 40404 401 18 scattered scatter VBN 40404 401 19 widely widely RB 40404 401 20 by by IN 40404 401 21 the the DT 40404 401 22 winds wind NNS 40404 401 23 . . . 40404 402 1 = = NFP 40404 402 2 Earthworms.= Earthworms.= NNP 40404 402 3 In in IN 40404 402 4 temperate temperate NN 40404 402 5 regions region VBZ 40404 402 6 the the DT 40404 402 7 waste waste NN 40404 402 8 is be VBZ 40404 402 9 worked work VBN 40404 402 10 over over IN 40404 402 11 largely largely RB 40404 402 12 by by IN 40404 402 13 earthworms earthworm NNS 40404 402 14 . . . 40404 403 1 In in IN 40404 403 2 making make VBG 40404 403 3 their -PRON- PRP$ 40404 403 4 burrows burrow NNS 40404 403 5 worms worm NNS 40404 403 6 swallow swallow NNP 40404 403 7 earth earth NN 40404 403 8 in in IN 40404 403 9 order order NN 40404 403 10 to to TO 40404 403 11 extract extract VB 40404 403 12 from from IN 40404 403 13 it -PRON- PRP 40404 403 14 any any DT 40404 403 15 nutritive nutritive JJ 40404 403 16 organic organic JJ 40404 403 17 matter matter NN 40404 403 18 which which WDT 40404 403 19 it -PRON- PRP 40404 403 20 may may MD 40404 403 21 contain contain VB 40404 403 22 . . . 40404 404 1 They -PRON- PRP 40404 404 2 treat treat VBP 40404 404 3 it -PRON- PRP 40404 404 4 with with IN 40404 404 5 their -PRON- PRP$ 40404 404 6 digestive digestive JJ 40404 404 7 acids acid NNS 40404 404 8 , , , 40404 404 9 grind grind VB 40404 404 10 it -PRON- PRP 40404 404 11 in in IN 40404 404 12 their -PRON- PRP$ 40404 404 13 stony stony NN 40404 404 14 gizzards gizzard NNS 40404 404 15 , , , 40404 404 16 and and CC 40404 404 17 void void VB 40404 404 18 it -PRON- PRP 40404 404 19 in in IN 40404 404 20 castings casting NNS 40404 404 21 on on IN 40404 404 22 the the DT 40404 404 23 surface surface NN 40404 404 24 of of IN 40404 404 25 the the DT 40404 404 26 ground ground NN 40404 404 27 . . . 40404 405 1 It -PRON- PRP 40404 405 2 was be VBD 40404 405 3 estimated estimate VBN 40404 405 4 by by IN 40404 405 5 Darwin Darwin NNP 40404 405 6 that that IN 40404 405 7 in in IN 40404 405 8 many many JJ 40404 405 9 parts part NNS 40404 405 10 of of IN 40404 405 11 England England NNP 40404 405 12 each each DT 40404 405 13 year year NN 40404 405 14 , , , 40404 405 15 on on IN 40404 405 16 every every DT 40404 405 17 acre acre NN 40404 405 18 , , , 40404 405 19 more more JJR 40404 405 20 than than IN 40404 405 21 ten ten CD 40404 405 22 tons ton NNS 40404 405 23 of of IN 40404 405 24 earth earth NN 40404 405 25 pass pass VB 40404 405 26 through through IN 40404 405 27 the the DT 40404 405 28 bodies body NNS 40404 405 29 of of IN 40404 405 30 earthworms earthworm NNS 40404 405 31 and and CC 40404 405 32 are be VBP 40404 405 33 brought bring VBN 40404 405 34 to to IN 40404 405 35 the the DT 40404 405 36 surface surface NN 40404 405 37 , , , 40404 405 38 and and CC 40404 405 39 that that IN 40404 405 40 every every DT 40404 405 41 few few JJ 40404 405 42 years year NNS 40404 405 43 the the DT 40404 405 44 entire entire JJ 40404 405 45 soil soil NN 40404 405 46 layer layer NN 40404 405 47 is be VBZ 40404 405 48 thus thus RB 40404 405 49 worked work VBN 40404 405 50 over over RP 40404 405 51 by by IN 40404 405 52 them -PRON- PRP 40404 405 53 . . . 40404 406 1 In in IN 40404 406 2 all all PDT 40404 406 3 these these DT 40404 406 4 ways way NNS 40404 406 5 the the DT 40404 406 6 waste waste NN 40404 406 7 is be VBZ 40404 406 8 made make VBN 40404 406 9 fine fine JJ 40404 406 10 and and CC 40404 406 11 stirred stir VBN 40404 406 12 and and CC 40404 406 13 enriched enrich VBN 40404 406 14 . . . 40404 407 1 Grain grain NN 40404 407 2 by by IN 40404 407 3 grain grain NN 40404 407 4 the the DT 40404 407 5 subsoil subsoil NN 40404 407 6 with with IN 40404 407 7 its -PRON- PRP$ 40404 407 8 fresh fresh JJ 40404 407 9 mineral mineral NN 40404 407 10 ingredients ingredient NNS 40404 407 11 is be VBZ 40404 407 12 brought bring VBN 40404 407 13 to to IN 40404 407 14 the the DT 40404 407 15 surface surface NN 40404 407 16 , , , 40404 407 17 and and CC 40404 407 18 the the DT 40404 407 19 rich rich JJ 40404 407 20 organic organic JJ 40404 407 21 matter matter NN 40404 407 22 which which WDT 40404 407 23 plants plant NNS 40404 407 24 and and CC 40404 407 25 animals animal NNS 40404 407 26 have have VBP 40404 407 27 taken take VBN 40404 407 28 from from IN 40404 407 29 the the DT 40404 407 30 atmosphere atmosphere NN 40404 407 31 is be VBZ 40404 407 32 plowed plow VBN 40404 407 33 under under IN 40404 407 34 . . . 40404 408 1 Thus thus RB 40404 408 2 Nature nature NN 40404 408 3 plows plow VBZ 40404 408 4 and and CC 40404 408 5 harrows harrow VBZ 40404 408 6 on on IN 40404 408 7 " " `` 40404 408 8 the the DT 40404 408 9 great great JJ 40404 408 10 world world NN 40404 408 11 's 's POS 40404 408 12 farm farm NN 40404 408 13 " " '' 40404 408 14 to to TO 40404 408 15 make make VB 40404 408 16 ready ready JJ 40404 408 17 and and CC 40404 408 18 ever ever RB 40404 408 19 to to TO 40404 408 20 renew renew VB 40404 408 21 a a DT 40404 408 22 soil soil NN 40404 408 23 fit fit NN 40404 408 24 for for IN 40404 408 25 the the DT 40404 408 26 endless endless JJ 40404 408 27 succession succession NN 40404 408 28 of of IN 40404 408 29 her -PRON- PRP$ 40404 408 30 crops crop NNS 40404 408 31 . . . 40404 409 1 The the DT 40404 409 2 world world NN 40404 409 3 processes process VBZ 40404 409 4 by by IN 40404 409 5 which which WDT 40404 409 6 rocks rock NNS 40404 409 7 are be VBP 40404 409 8 continually continually RB 40404 409 9 wasting waste VBG 40404 409 10 away away RB 40404 409 11 are be VBP 40404 409 12 thus thus RB 40404 409 13 indispensable indispensable JJ 40404 409 14 to to IN 40404 409 15 the the DT 40404 409 16 life life NN 40404 409 17 of of IN 40404 409 18 plants plant NNS 40404 409 19 and and CC 40404 409 20 animals animal NNS 40404 409 21 . . . 40404 410 1 The the DT 40404 410 2 organic organic JJ 40404 410 3 world world NN 40404 410 4 is be VBZ 40404 410 5 built build VBN 40404 410 6 on on IN 40404 410 7 the the DT 40404 410 8 ruins ruin NNS 40404 410 9 of of IN 40404 410 10 the the DT 40404 410 11 inorganic inorganic JJ 40404 410 12 , , , 40404 410 13 and and CC 40404 410 14 because because IN 40404 410 15 the the DT 40404 410 16 solid solid JJ 40404 410 17 rocks rock NNS 40404 410 18 have have VBP 40404 410 19 been be VBN 40404 410 20 broken break VBN 40404 410 21 down down RP 40404 410 22 into into IN 40404 410 23 soil soil NN 40404 410 24 men man NNS 40404 410 25 are be VBP 40404 410 26 able able JJ 40404 410 27 to to TO 40404 410 28 live live VB 40404 410 29 upon upon IN 40404 410 30 the the DT 40404 410 31 earth earth NN 40404 410 32 . . . 40404 411 1 = = NFP 40404 411 2 Solar Solar NNP 40404 411 3 energy.= energy.= NN 40404 411 4 The the DT 40404 411 5 source source NN 40404 411 6 of of IN 40404 411 7 the the DT 40404 411 8 energy energy NN 40404 411 9 which which WDT 40404 411 10 accomplishes accomplish VBZ 40404 411 11 all all PDT 40404 411 12 this this DT 40404 411 13 necessary necessary JJ 40404 411 14 work work NN 40404 411 15 is be VBZ 40404 411 16 the the DT 40404 411 17 sun sun NN 40404 411 18 . . . 40404 412 1 It -PRON- PRP 40404 412 2 is be VBZ 40404 412 3 the the DT 40404 412 4 radiant radiant JJ 40404 412 5 energy energy NN 40404 412 6 of of IN 40404 412 7 the the DT 40404 412 8 sun sun NN 40404 412 9 which which WDT 40404 412 10 causes cause VBZ 40404 412 11 the the DT 40404 412 12 disintegration disintegration NN 40404 412 13 of of IN 40404 412 14 rocks rock NNS 40404 412 15 , , , 40404 412 16 which which WDT 40404 412 17 lifts lift VBZ 40404 412 18 vapor vapor NN 40404 412 19 into into IN 40404 412 20 the the DT 40404 412 21 atmosphere atmosphere NN 40404 412 22 to to TO 40404 412 23 fall fall VB 40404 412 24 as as IN 40404 412 25 rain rain NN 40404 412 26 , , , 40404 412 27 which which WDT 40404 412 28 gives give VBZ 40404 412 29 life life NN 40404 412 30 to to IN 40404 412 31 plants plant NNS 40404 412 32 and and CC 40404 412 33 animals animal NNS 40404 412 34 . . . 40404 413 1 Considering consider VBG 40404 413 2 the the DT 40404 413 3 earth earth NN 40404 413 4 in in IN 40404 413 5 a a DT 40404 413 6 broad broad JJ 40404 413 7 way way NN 40404 413 8 , , , 40404 413 9 we -PRON- PRP 40404 413 10 may may MD 40404 413 11 view view VB 40404 413 12 it -PRON- PRP 40404 413 13 as as IN 40404 413 14 a a DT 40404 413 15 globe globe NN 40404 413 16 of of IN 40404 413 17 solid solid JJ 40404 413 18 rock,--_the rock,--_the NN 40404 413 19 lithosphere_,--surrounded lithosphere_,--surrounde VBN 40404 413 20 by by IN 40404 413 21 two two CD 40404 413 22 mobile mobile JJ 40404 413 23 envelopes envelope NNS 40404 413 24 : : : 40404 413 25 the the DT 40404 413 26 envelope envelope NN 40404 413 27 of of IN 40404 413 28 air,--_the air,--_the DT 40404 413 29 atmosphere atmosphere NN 40404 413 30 _ _ NNP 40404 413 31 ; ; : 40404 413 32 and and CC 40404 413 33 the the DT 40404 413 34 envelope envelope NN 40404 413 35 of of IN 40404 413 36 water,--_the water,--_the DT 40404 413 37 hydrosphere hydrosphere NNP 40404 413 38 _ _ NNP 40404 413 39 . . . 40404 414 1 Under under IN 40404 414 2 the the DT 40404 414 3 action action NN 40404 414 4 of of IN 40404 414 5 solar solar JJ 40404 414 6 energy energy NN 40404 414 7 these these DT 40404 414 8 envelopes envelope NNS 40404 414 9 are be VBP 40404 414 10 in in IN 40404 414 11 constant constant JJ 40404 414 12 motion motion NN 40404 414 13 . . . 40404 415 1 Water water NN 40404 415 2 from from IN 40404 415 3 the the DT 40404 415 4 hydrosphere hydrosphere NN 40404 415 5 is be VBZ 40404 415 6 continually continually RB 40404 415 7 rising rise VBG 40404 415 8 in in IN 40404 415 9 vapor vapor NN 40404 415 10 into into IN 40404 415 11 the the DT 40404 415 12 atmosphere atmosphere NN 40404 415 13 , , , 40404 415 14 the the DT 40404 415 15 air air NN 40404 415 16 of of IN 40404 415 17 the the DT 40404 415 18 atmosphere atmosphere NN 40404 415 19 penetrates penetrate VBZ 40404 415 20 the the DT 40404 415 21 hydrosphere,--for hydrosphere,--for NNP 40404 415 22 its -PRON- PRP$ 40404 415 23 gases gas NNS 40404 415 24 are be VBP 40404 415 25 dissolved dissolve VBN 40404 415 26 in in IN 40404 415 27 all all DT 40404 415 28 waters,--and waters,--and $ 40404 415 29 both both DT 40404 415 30 air air NN 40404 415 31 and and CC 40404 415 32 water water NN 40404 415 33 enter enter VB 40404 415 34 and and CC 40404 415 35 work work VB 40404 415 36 upon upon IN 40404 415 37 the the DT 40404 415 38 solid solid JJ 40404 415 39 earth earth NN 40404 415 40 . . . 40404 416 1 By by IN 40404 416 2 their -PRON- PRP$ 40404 416 3 action action NN 40404 416 4 upon upon IN 40404 416 5 the the DT 40404 416 6 lithosphere lithosphere JJ 40404 416 7 they -PRON- PRP 40404 416 8 have have VBP 40404 416 9 produced produce VBN 40404 416 10 a a DT 40404 416 11 third third JJ 40404 416 12 envelope,--the envelope,--the NNP 40404 416 13 mantle mantle NN 40404 416 14 of of IN 40404 416 15 rock rock NN 40404 416 16 waste waste NN 40404 416 17 . . . 40404 417 1 This this DT 40404 417 2 envelope envelope NN 40404 417 3 also also RB 40404 417 4 is be VBZ 40404 417 5 in in IN 40404 417 6 movement movement NN 40404 417 7 , , , 40404 417 8 not not RB 40404 417 9 indeed indeed RB 40404 417 10 as as IN 40404 417 11 a a DT 40404 417 12 whole whole NN 40404 417 13 , , , 40404 417 14 but but CC 40404 417 15 particle particle NN 40404 417 16 by by IN 40404 417 17 particle particle NN 40404 417 18 . . . 40404 418 1 The the DT 40404 418 2 causes cause NNS 40404 418 3 which which WDT 40404 418 4 set set VBD 40404 418 5 its -PRON- PRP$ 40404 418 6 particles particle NNS 40404 418 7 in in IN 40404 418 8 motion motion NN 40404 418 9 , , , 40404 418 10 and and CC 40404 418 11 the the DT 40404 418 12 different different JJ 40404 418 13 forms form NNS 40404 418 14 which which WDT 40404 418 15 the the DT 40404 418 16 mantle mantle NN 40404 418 17 comes come VBZ 40404 418 18 to to TO 40404 418 19 assume assume VB 40404 418 20 , , , 40404 418 21 we -PRON- PRP 40404 418 22 will will MD 40404 418 23 now now RB 40404 418 24 proceed proceed VB 40404 418 25 to to TO 40404 418 26 study study VB 40404 418 27 . . . 40404 419 1 Movements movement NNS 40404 419 2 of of IN 40404 419 3 the the DT 40404 419 4 Mantle Mantle NNP 40404 419 5 of of IN 40404 419 6 Rock Rock NNP 40404 419 7 Waste Waste NNP 40404 419 8 At at IN 40404 419 9 the the DT 40404 419 10 sandstone sandstone NN 40404 419 11 ledges ledge NNS 40404 419 12 which which WDT 40404 419 13 we -PRON- PRP 40404 419 14 first first RB 40404 419 15 visited visit VBD 40404 419 16 we -PRON- PRP 40404 419 17 saw see VBD 40404 419 18 not not RB 40404 419 19 only only RB 40404 419 20 that that IN 40404 419 21 the the DT 40404 419 22 rocks rock NNS 40404 419 23 were be VBD 40404 419 24 crumbling crumble VBG 40404 419 25 away away RB 40404 419 26 , , , 40404 419 27 but but CC 40404 419 28 also also RB 40404 419 29 that that IN 40404 419 30 grains grain NNS 40404 419 31 and and CC 40404 419 32 fragments fragment NNS 40404 419 33 of of IN 40404 419 34 them -PRON- PRP 40404 419 35 were be VBD 40404 419 36 creeping creep VBG 40404 419 37 down down IN 40404 419 38 the the DT 40404 419 39 slopes slope NNS 40404 419 40 of of IN 40404 419 41 the the DT 40404 419 42 valley valley NN 40404 419 43 to to IN 40404 419 44 the the DT 40404 419 45 stream stream NN 40404 419 46 and and CC 40404 419 47 were be VBD 40404 419 48 carried carry VBN 40404 419 49 by by IN 40404 419 50 it -PRON- PRP 40404 419 51 onward onward RB 40404 419 52 toward toward IN 40404 419 53 the the DT 40404 419 54 sea sea NN 40404 419 55 . . . 40404 420 1 This this DT 40404 420 2 process process NN 40404 420 3 is be VBZ 40404 420 4 going go VBG 40404 420 5 on on RP 40404 420 6 everywhere everywhere RB 40404 420 7 . . . 40404 421 1 Slowly slowly RB 40404 421 2 it -PRON- PRP 40404 421 3 may may MD 40404 421 4 be be VB 40404 421 5 , , , 40404 421 6 and and CC 40404 421 7 with with IN 40404 421 8 many many JJ 40404 421 9 interruptions interruption NNS 40404 421 10 , , , 40404 421 11 but but CC 40404 421 12 surely surely RB 40404 421 13 , , , 40404 421 14 the the DT 40404 421 15 waste waste NN 40404 421 16 of of IN 40404 421 17 the the DT 40404 421 18 land land NN 40404 421 19 moves move VBZ 40404 421 20 downward downward RB 40404 421 21 to to IN 40404 421 22 the the DT 40404 421 23 sea sea NN 40404 421 24 . . . 40404 422 1 We -PRON- PRP 40404 422 2 may may MD 40404 422 3 divide divide VB 40404 422 4 its -PRON- PRP$ 40404 422 5 course course NN 40404 422 6 into into IN 40404 422 7 two two CD 40404 422 8 parts,--the parts,--the NNP 40404 422 9 path path NN 40404 422 10 to to IN 40404 422 11 the the DT 40404 422 12 stream stream NN 40404 422 13 , , , 40404 422 14 which which WDT 40404 422 15 we -PRON- PRP 40404 422 16 will will MD 40404 422 17 now now RB 40404 422 18 consider consider VB 40404 422 19 , , , 40404 422 20 and and CC 40404 422 21 its -PRON- PRP$ 40404 422 22 carriage carriage NN 40404 422 23 onward onward RB 40404 422 24 by by IN 40404 422 25 the the DT 40404 422 26 stream stream NN 40404 422 27 , , , 40404 422 28 which which WDT 40404 422 29 we -PRON- PRP 40404 422 30 will will MD 40404 422 31 defer defer VB 40404 422 32 to to IN 40404 422 33 a a DT 40404 422 34 later later JJ 40404 422 35 chapter chapter NN 40404 422 36 . . . 40404 423 1 = = NFP 40404 423 2 Gravity.= gravity.= VB 40404 423 3 The the DT 40404 423 4 chief chief JJ 40404 423 5 agent agent NN 40404 423 6 concerned concern VBN 40404 423 7 in in IN 40404 423 8 the the DT 40404 423 9 movement movement NN 40404 423 10 of of IN 40404 423 11 waste waste NN 40404 423 12 is be VBZ 40404 423 13 gravity gravity NN 40404 423 14 . . . 40404 424 1 Each each DT 40404 424 2 particle particle NN 40404 424 3 of of IN 40404 424 4 waste waste NN 40404 424 5 feels feel VBZ 40404 424 6 the the DT 40404 424 7 unceasing uncease VBG 40404 424 8 downward downward RB 40404 424 9 pull pull NN 40404 424 10 of of IN 40404 424 11 the the DT 40404 424 12 earth earth NN 40404 424 13 's 's POS 40404 424 14 mass mass NN 40404 424 15 and and CC 40404 424 16 follows follow VBZ 40404 424 17 it -PRON- PRP 40404 424 18 when when WRB 40404 424 19 free free JJ 40404 424 20 to to TO 40404 424 21 do do VB 40404 424 22 so so RB 40404 424 23 . . . 40404 425 1 All all DT 40404 425 2 agencies agency NNS 40404 425 3 which which WDT 40404 425 4 produce produce VBP 40404 425 5 waste waste NN 40404 425 6 tend tend VBP 40404 425 7 to to TO 40404 425 8 set set VB 40404 425 9 its -PRON- PRP$ 40404 425 10 particles particle NNS 40404 425 11 free free JJ 40404 425 12 and and CC 40404 425 13 in in IN 40404 425 14 motion motion NN 40404 425 15 , , , 40404 425 16 and and CC 40404 425 17 therefore therefore RB 40404 425 18 coöperate coöperate JJ 40404 425 19 with with IN 40404 425 20 gravity gravity NN 40404 425 21 . . . 40404 426 1 On on IN 40404 426 2 cliffs cliff NNS 40404 426 3 , , , 40404 426 4 rocks rock NNS 40404 426 5 fall fall VBP 40404 426 6 when when WRB 40404 426 7 wedged wedge VBN 40404 426 8 off off RP 40404 426 9 by by IN 40404 426 10 frost frost NN 40404 426 11 or or CC 40404 426 12 by by IN 40404 426 13 roots root NNS 40404 426 14 of of IN 40404 426 15 trees tree NNS 40404 426 16 , , , 40404 426 17 and and CC 40404 426 18 when when WRB 40404 426 19 detached detach VBN 40404 426 20 by by IN 40404 426 21 any any DT 40404 426 22 other other JJ 40404 426 23 agency agency NN 40404 426 24 . . . 40404 427 1 On on IN 40404 427 2 slopes slope NNS 40404 427 3 of of IN 40404 427 4 waste waste NN 40404 427 5 , , , 40404 427 6 water water NN 40404 427 7 freezes freeze NNS 40404 427 8 in in IN 40404 427 9 chinks chink NNS 40404 427 10 between between IN 40404 427 11 stones stone NNS 40404 427 12 , , , 40404 427 13 and and CC 40404 427 14 in in IN 40404 427 15 pores pore NNS 40404 427 16 between between IN 40404 427 17 particles particle NNS 40404 427 18 of of IN 40404 427 19 soil soil NN 40404 427 20 , , , 40404 427 21 and and CC 40404 427 22 wedges wedge VBZ 40404 427 23 them -PRON- PRP 40404 427 24 apart apart RB 40404 427 25 . . . 40404 428 1 Animals animal NNS 40404 428 2 and and CC 40404 428 3 plants plant NNS 40404 428 4 stir stir VBP 40404 428 5 the the DT 40404 428 6 waste waste NN 40404 428 7 , , , 40404 428 8 heat heat NN 40404 428 9 expands expand VBZ 40404 428 10 it -PRON- PRP 40404 428 11 , , , 40404 428 12 cold cold JJ 40404 428 13 contracts contract NNS 40404 428 14 it -PRON- PRP 40404 428 15 , , , 40404 428 16 the the DT 40404 428 17 strokes stroke NNS 40404 428 18 of of IN 40404 428 19 the the DT 40404 428 20 raindrops raindrop NNS 40404 428 21 drive drive VBP 40404 428 22 loose loose JJ 40404 428 23 particles particle NNS 40404 428 24 down down IN 40404 428 25 the the DT 40404 428 26 slope slope NN 40404 428 27 and and CC 40404 428 28 the the DT 40404 428 29 wind wind NN 40404 428 30 lifts lift VBZ 40404 428 31 and and CC 40404 428 32 lets let VBZ 40404 428 33 them -PRON- PRP 40404 428 34 fall fall VB 40404 428 35 . . . 40404 429 1 Of of IN 40404 429 2 all all PDT 40404 429 3 these these DT 40404 429 4 movements movement NNS 40404 429 5 , , , 40404 429 6 gravity gravity NN 40404 429 7 assists assist VBZ 40404 429 8 those those DT 40404 429 9 which which WDT 40404 429 10 are be VBP 40404 429 11 downhill downhill RB 40404 429 12 and and CC 40404 429 13 retards retard VBZ 40404 429 14 those those DT 40404 429 15 which which WDT 40404 429 16 are be VBP 40404 429 17 uphill uphill JJ 40404 429 18 . . . 40404 430 1 On on IN 40404 430 2 the the DT 40404 430 3 whole whole NN 40404 430 4 , , , 40404 430 5 therefore therefore RB 40404 430 6 , , , 40404 430 7 the the DT 40404 430 8 downhill downhill JJ 40404 430 9 movements movement NNS 40404 430 10 prevail prevail VBP 40404 430 11 , , , 40404 430 12 and and CC 40404 430 13 the the DT 40404 430 14 mantle mantle NN 40404 430 15 of of IN 40404 430 16 waste waste NNP 40404 430 17 , , , 40404 430 18 block block NN 40404 430 19 by by IN 40404 430 20 block block NN 40404 430 21 and and CC 40404 430 22 grain grain NN 40404 430 23 by by IN 40404 430 24 grain grain NN 40404 430 25 , , , 40404 430 26 creeps creep NNS 40404 430 27 along along IN 40404 430 28 the the DT 40404 430 29 downhill downhill JJ 40404 430 30 path path NN 40404 430 31 . . . 40404 431 1 A a DT 40404 431 2 slab slab NN 40404 431 3 of of IN 40404 431 4 sandstone sandstone NN 40404 431 5 laid lay VBN 40404 431 6 on on IN 40404 431 7 another another DT 40404 431 8 of of IN 40404 431 9 the the DT 40404 431 10 same same JJ 40404 431 11 kind kind NN 40404 431 12 at at IN 40404 431 13 an an DT 40404 431 14 angle angle NN 40404 431 15 of of IN 40404 431 16 17 17 CD 40404 431 17 ° ° NNS 40404 431 18 and and CC 40404 431 19 left leave VBD 40404 431 20 in in IN 40404 431 21 the the DT 40404 431 22 open open JJ 40404 431 23 air air NN 40404 431 24 was be VBD 40404 431 25 found find VBN 40404 431 26 to to TO 40404 431 27 creep creep VB 40404 431 28 down down RP 40404 431 29 the the DT 40404 431 30 slope slope NN 40404 431 31 at at IN 40404 431 32 the the DT 40404 431 33 rate rate NN 40404 431 34 of of IN 40404 431 35 a a DT 40404 431 36 little little JJ 40404 431 37 more more JJR 40404 431 38 than than IN 40404 431 39 a a DT 40404 431 40 millimeter millimeter NN 40404 431 41 a a DT 40404 431 42 month month NN 40404 431 43 . . . 40404 432 1 Explain explain VB 40404 432 2 why why WRB 40404 432 3 it -PRON- PRP 40404 432 4 did do VBD 40404 432 5 so so RB 40404 432 6 . . . 40404 433 1 = = NFP 40404 433 2 Rain.= rain.= ADD 40404 433 3 The the DT 40404 433 4 most most RBS 40404 433 5 efficient efficient JJ 40404 433 6 agent agent NN 40404 433 7 in in IN 40404 433 8 the the DT 40404 433 9 carriage carriage NN 40404 433 10 of of IN 40404 433 11 waste waste NN 40404 433 12 to to IN 40404 433 13 the the DT 40404 433 14 streams stream NNS 40404 433 15 is be VBZ 40404 433 16 the the DT 40404 433 17 rain rain NN 40404 433 18 . . . 40404 434 1 It -PRON- PRP 40404 434 2 moves move VBZ 40404 434 3 particles particle NNS 40404 434 4 of of IN 40404 434 5 soil soil NN 40404 434 6 by by IN 40404 434 7 the the DT 40404 434 8 force force NN 40404 434 9 of of IN 40404 434 10 the the DT 40404 434 11 blows blow NNS 40404 434 12 of of IN 40404 434 13 the the DT 40404 434 14 falling fall VBG 40404 434 15 drops drop NNS 40404 434 16 , , , 40404 434 17 and and CC 40404 434 18 washes wash VBZ 40404 434 19 them -PRON- PRP 40404 434 20 down down IN 40404 434 21 all all DT 40404 434 22 slopes slope NNS 40404 434 23 to to IN 40404 434 24 within within IN 40404 434 25 reach reach NN 40404 434 26 of of IN 40404 434 27 permanent permanent JJ 40404 434 28 streams stream NNS 40404 434 29 . . . 40404 435 1 On on IN 40404 435 2 surfaces surface NNS 40404 435 3 unprotected unprotecte VBN 40404 435 4 by by IN 40404 435 5 vegetation vegetation NN 40404 435 6 , , , 40404 435 7 as as IN 40404 435 8 on on IN 40404 435 9 plowed plow VBN 40404 435 10 fields field NNS 40404 435 11 and and CC 40404 435 12 in in IN 40404 435 13 arid arid JJ 40404 435 14 regions region NNS 40404 435 15 , , , 40404 435 16 the the DT 40404 435 17 rain rain NN 40404 435 18 wears wear VBZ 40404 435 19 furrows furrow NNS 40404 435 20 and and CC 40404 435 21 gullies gully NNS 40404 435 22 both both DT 40404 435 23 in in IN 40404 435 24 the the DT 40404 435 25 mantle mantle NN 40404 435 26 of of IN 40404 435 27 waste waste NN 40404 435 28 and and CC 40404 435 29 in in IN 40404 435 30 exposures exposure NNS 40404 435 31 of of IN 40404 435 32 unaltered unaltered JJ 40404 435 33 rock rock NN 40404 435 34 ( ( -LRB- 40404 435 35 Fig fig NN 40404 435 36 . . . 40404 436 1 17 17 CD 40404 436 2 ) ) -RRB- 40404 436 3 . . . 40404 437 1 At at IN 40404 437 2 the the DT 40404 437 3 foot foot NN 40404 437 4 of of IN 40404 437 5 a a DT 40404 437 6 hill hill NN 40404 437 7 we -PRON- PRP 40404 437 8 may may MD 40404 437 9 find find VB 40404 437 10 that that IN 40404 437 11 the the DT 40404 437 12 soil soil NN 40404 437 13 has have VBZ 40404 437 14 accumulated accumulate VBN 40404 437 15 by by IN 40404 437 16 creep creep NN 40404 437 17 and and CC 40404 437 18 wash wash VB 40404 437 19 to to IN 40404 437 20 the the DT 40404 437 21 depth depth NN 40404 437 22 of of IN 40404 437 23 several several JJ 40404 437 24 feet foot NNS 40404 437 25 ; ; : 40404 437 26 while while IN 40404 437 27 where where WRB 40404 437 28 the the DT 40404 437 29 hillside hillside NN 40404 437 30 is be VBZ 40404 437 31 steepest steep JJS 40404 437 32 the the DT 40404 437 33 soil soil NN 40404 437 34 may may MD 40404 437 35 be be VB 40404 437 36 exceedingly exceedingly RB 40404 437 37 thin thin JJ 40404 437 38 , , , 40404 437 39 or or CC 40404 437 40 quite quite RB 40404 437 41 absent absent JJ 40404 437 42 , , , 40404 437 43 because because IN 40404 437 44 removed remove VBN 40404 437 45 about about IN 40404 437 46 as as RB 40404 437 47 fast fast RB 40404 437 48 as as IN 40404 437 49 formed form VBN 40404 437 50 . . . 40404 438 1 Against against IN 40404 438 2 the the DT 40404 438 3 walls wall NNS 40404 438 4 of of IN 40404 438 5 an an DT 40404 438 6 abbey abbey NN 40404 438 7 built build VBN 40404 438 8 on on IN 40404 438 9 a a DT 40404 438 10 slope slope NN 40404 438 11 in in IN 40404 438 12 Wales Wales NNP 40404 438 13 seven seven CD 40404 438 14 hundred hundred CD 40404 438 15 years year NNS 40404 438 16 ago ago RB 40404 438 17 , , , 40404 438 18 the the DT 40404 438 19 creeping creep VBG 40404 438 20 waste waste NN 40404 438 21 has have VBZ 40404 438 22 gathered gather VBN 40404 438 23 on on IN 40404 438 24 the the DT 40404 438 25 uphill uphill JJ 40404 438 26 side side NN 40404 438 27 to to IN 40404 438 28 a a DT 40404 438 29 depth depth NN 40404 438 30 of of IN 40404 438 31 seven seven CD 40404 438 32 feet foot NNS 40404 438 33 . . . 40404 439 1 The the DT 40404 439 2 slow slow RB 40404 439 3 - - HYPH 40404 439 4 flowing flow VBG 40404 439 5 sheet sheet NN 40404 439 6 of of IN 40404 439 7 waste waste NN 40404 439 8 is be VBZ 40404 439 9 often often RB 40404 439 10 dammed dam VBN 40404 439 11 by by IN 40404 439 12 fences fence NNS 40404 439 13 and and CC 40404 439 14 walls wall NNS 40404 439 15 , , , 40404 439 16 whose whose WP$ 40404 439 17 uphill uphill JJ 40404 439 18 side side NN 40404 439 19 gathers gather NNS 40404 439 20 waste waste VBP 40404 439 21 in in IN 40404 439 22 a a DT 40404 439 23 few few JJ 40404 439 24 years year NNS 40404 439 25 so so IN 40404 439 26 as as IN 40404 439 27 to to TO 40404 439 28 show show VB 40404 439 29 a a DT 40404 439 30 distinctly distinctly RB 40404 439 31 higher high JJR 40404 439 32 surface surface NN 40404 439 33 than than IN 40404 439 34 the the DT 40404 439 35 downhill downhill JJ 40404 439 36 side side NN 40404 439 37 , , , 40404 439 38 especially especially RB 40404 439 39 in in IN 40404 439 40 plowed plow VBN 40404 439 41 fields field NNS 40404 439 42 where where WRB 40404 439 43 the the DT 40404 439 44 movement movement NN 40404 439 45 is be VBZ 40404 439 46 least least RBS 40404 439 47 checked check VBN 40404 439 48 by by IN 40404 439 49 vegetation vegetation NN 40404 439 50 . . . 40404 440 1 = = NFP 40404 440 2 Talus.= Talus.= NNP 40404 440 3 At at IN 40404 440 4 the the DT 40404 440 5 foot foot NN 40404 440 6 of of IN 40404 440 7 cliffs cliff NNS 40404 440 8 there there EX 40404 440 9 is be VBZ 40404 440 10 usually usually RB 40404 440 11 to to TO 40404 440 12 be be VB 40404 440 13 found find VBN 40404 440 14 a a DT 40404 440 15 slope slope NN 40404 440 16 of of IN 40404 440 17 rock rock NN 40404 440 18 fragments fragment NNS 40404 440 19 which which WDT 40404 440 20 clearly clearly RB 40404 440 21 have have VBP 40404 440 22 fallen fall VBN 40404 440 23 from from IN 40404 440 24 above above RB 40404 440 25 ( ( -LRB- 40404 440 26 Fig fig NN 40404 440 27 . . . 40404 441 1 8) 8) CD 40404 441 2 . . . 40404 442 1 Such such PDT 40404 442 2 a a DT 40404 442 3 heap heap NN 40404 442 4 of of IN 40404 442 5 waste waste NN 40404 442 6 is be VBZ 40404 442 7 known know VBN 40404 442 8 as as IN 40404 442 9 _ _ NNP 40404 442 10 talus talus NN 40404 442 11 _ _ NNP 40404 442 12 . . . 40404 443 1 The the DT 40404 443 2 amount amount NN 40404 443 3 of of IN 40404 443 4 talus talus NN 40404 443 5 in in IN 40404 443 6 any any DT 40404 443 7 place place NN 40404 443 8 depends depend VBZ 40404 443 9 both both DT 40404 443 10 on on IN 40404 443 11 the the DT 40404 443 12 rate rate NN 40404 443 13 of of IN 40404 443 14 its -PRON- PRP$ 40404 443 15 formation formation NN 40404 443 16 and and CC 40404 443 17 the the DT 40404 443 18 rate rate NN 40404 443 19 of of IN 40404 443 20 its -PRON- PRP$ 40404 443 21 removal removal NN 40404 443 22 . . . 40404 444 1 Talus Talus NNP 40404 444 2 forms form NNS 40404 444 3 rapidly rapidly RB 40404 444 4 in in IN 40404 444 5 climates climate NNS 40404 444 6 where where WRB 40404 444 7 mechanical mechanical JJ 40404 444 8 disintegration disintegration NN 40404 444 9 is be VBZ 40404 444 10 most most RBS 40404 444 11 effective effective JJ 40404 444 12 , , , 40404 444 13 where where WRB 40404 444 14 rocks rock NNS 40404 444 15 are be VBP 40404 444 16 readily readily RB 40404 444 17 broken break VBN 40404 444 18 into into IN 40404 444 19 blocks block NNS 40404 444 20 because because IN 40404 444 21 closely closely RB 40404 444 22 jointed jointed JJ 40404 444 23 and and CC 40404 444 24 thinly thinly RB 40404 444 25 bedded bed VBN 40404 444 26 rather rather RB 40404 444 27 than than IN 40404 444 28 massive massive JJ 40404 444 29 , , , 40404 444 30 and and CC 40404 444 31 where where WRB 40404 444 32 they -PRON- PRP 40404 444 33 are be VBP 40404 444 34 firm firm JJ 40404 444 35 enough enough RB 40404 444 36 to to TO 40404 444 37 be be VB 40404 444 38 detached detach VBN 40404 444 39 in in IN 40404 444 40 fragments fragment NNS 40404 444 41 of of IN 40404 444 42 some some DT 40404 444 43 size size NN 40404 444 44 instead instead RB 40404 444 45 of of IN 40404 444 46 in in IN 40404 444 47 fine fine JJ 40404 444 48 grains grain NNS 40404 444 49 . . . 40404 445 1 Talus Talus NNP 40404 445 2 is be VBZ 40404 445 3 removed remove VBN 40404 445 4 slowly slowly RB 40404 445 5 where where WRB 40404 445 6 it -PRON- PRP 40404 445 7 decays decay VBZ 40404 445 8 slowly slowly RB 40404 445 9 , , , 40404 445 10 either either CC 40404 445 11 because because IN 40404 445 12 of of IN 40404 445 13 the the DT 40404 445 14 climate climate NN 40404 445 15 or or CC 40404 445 16 the the DT 40404 445 17 resistance resistance NN 40404 445 18 of of IN 40404 445 19 the the DT 40404 445 20 rock rock NN 40404 445 21 . . . 40404 446 1 It -PRON- PRP 40404 446 2 may may MD 40404 446 3 be be VB 40404 446 4 rapidly rapidly RB 40404 446 5 removed remove VBN 40404 446 6 by by IN 40404 446 7 a a DT 40404 446 8 stream stream NN 40404 446 9 flowing flow VBG 40404 446 10 along along IN 40404 446 11 its -PRON- PRP$ 40404 446 12 base base NN 40404 446 13 . . . 40404 447 1 [ [ -LRB- 40404 447 2 Illustration illustration NN 40404 447 3 : : : 40404 447 4 Fig Fig NNP 40404 447 5 . . . 40404 448 1 8 8 LS 40404 448 2 . . . 40404 449 1 Talus Talus NNP 40404 449 2 at at IN 40404 449 3 Foot Foot NNP 40404 449 4 of of IN 40404 449 5 Granite Granite NNP 40404 449 6 Cliffs Cliffs NNP 40404 449 7 , , , 40404 449 8 Sierra Sierra NNP 40404 449 9 Nevada Nevada NNP 40404 449 10 Mountains Mountains NNPS 40404 449 11 ] ] -RRB- 40404 449 12 In in IN 40404 449 13 a a DT 40404 449 14 moist moist JJ 40404 449 15 climate climate NN 40404 449 16 a a DT 40404 449 17 soluble soluble JJ 40404 449 18 rock rock NN 40404 449 19 , , , 40404 449 20 such such JJ 40404 449 21 as as IN 40404 449 22 massive massive JJ 40404 449 23 limestone limestone NN 40404 449 24 , , , 40404 449 25 may may MD 40404 449 26 form form VB 40404 449 27 talus talus NN 40404 449 28 little little JJ 40404 449 29 if if IN 40404 449 30 any any DT 40404 449 31 faster fast RBR 40404 449 32 than than IN 40404 449 33 the the DT 40404 449 34 talus talus NN 40404 449 35 weathers weather VBZ 40404 449 36 away away RB 40404 449 37 . . . 40404 450 1 A a DT 40404 450 2 loose loose RB 40404 450 3 - - HYPH 40404 450 4 textured texture VBN 40404 450 5 sandstone sandstone NN 40404 450 6 breaks break VBZ 40404 450 7 down down RP 40404 450 8 into into IN 40404 450 9 incoherent incoherent JJ 40404 450 10 sand sand NN 40404 450 11 grains grain NNS 40404 450 12 , , , 40404 450 13 which which WDT 40404 450 14 in in IN 40404 450 15 dry dry JJ 40404 450 16 climates climate NNS 40404 450 17 , , , 40404 450 18 where where WRB 40404 450 19 unprotected unprotecte VBN 40404 450 20 by by IN 40404 450 21 vegetation vegetation NN 40404 450 22 , , , 40404 450 23 may may MD 40404 450 24 be be VB 40404 450 25 blown blow VBN 40404 450 26 away away RB 40404 450 27 as as RB 40404 450 28 fast fast RB 40404 450 29 as as IN 40404 450 30 they -PRON- PRP 40404 450 31 fall fall VBP 40404 450 32 , , , 40404 450 33 leaving leave VBG 40404 450 34 the the DT 40404 450 35 cliff cliff NN 40404 450 36 bare bare NNP 40404 450 37 to to IN 40404 450 38 the the DT 40404 450 39 base base NN 40404 450 40 . . . 40404 451 1 Cliffs cliff NNS 40404 451 2 of of IN 40404 451 3 such such JJ 40404 451 4 slow slow RB 40404 451 5 - - HYPH 40404 451 6 decaying decay VBG 40404 451 7 rocks rock NNS 40404 451 8 as as IN 40404 451 9 quartzite quartzite NN 40404 451 10 and and CC 40404 451 11 granite granite NN 40404 451 12 when when WRB 40404 451 13 closely closely RB 40404 451 14 jointed jointed JJ 40404 451 15 accumulate accumulate NN 40404 451 16 talus talus NN 40404 451 17 in in IN 40404 451 18 large large JJ 40404 451 19 amounts amount NNS 40404 451 20 . . . 40404 452 1 [ [ -LRB- 40404 452 2 Illustration illustration NN 40404 452 3 : : : 40404 452 4 Fig Fig NNP 40404 452 5 . . . 40404 453 1 9 9 CD 40404 453 2 . . . 40404 454 1 Diagram Diagram NNP 40404 454 2 Illustrating Illustrating NNP 40404 454 3 Retreat Retreat NNP 40404 454 4 of of IN 40404 454 5 Cliff Cliff NNP 40404 454 6 , , , 40404 454 7 _ _ NNP 40404 454 8 c c NNP 40404 454 9 _ _ NNP 40404 454 10 , , , 40404 454 11 and and CC 40404 454 12 Talus Talus NNP 40404 454 13 , , , 40404 454 14 _ _ NNP 40404 454 15 t t NNP 40404 454 16 _ _ NNP 40404 454 17 ] ] -RRB- 40404 454 18 Talus Talus NNP 40404 454 19 slopes slope NNS 40404 454 20 may may MD 40404 454 21 be be VB 40404 454 22 so so RB 40404 454 23 steep steep JJ 40404 454 24 as as IN 40404 454 25 to to TO 40404 454 26 reach reach VB 40404 454 27 _ _ NNP 40404 454 28 the the DT 40404 454 29 angle angle NN 40404 454 30 of of IN 40404 454 31 repose repose JJ 40404 454 32 _ _ NNP 40404 454 33 , , , 40404 454 34 i.e. i.e. FW 40404 455 1 the the DT 40404 455 2 steepest steep JJS 40404 455 3 angle angle NN 40404 455 4 at at IN 40404 455 5 which which WDT 40404 455 6 the the DT 40404 455 7 material material NN 40404 455 8 will will MD 40404 455 9 lie lie VB 40404 455 10 . . . 40404 456 1 This this DT 40404 456 2 angle angle NN 40404 456 3 varies vary VBZ 40404 456 4 with with IN 40404 456 5 different different JJ 40404 456 6 materials material NNS 40404 456 7 , , , 40404 456 8 being be VBG 40404 456 9 greater great JJR 40404 456 10 with with IN 40404 456 11 coarse coarse JJ 40404 456 12 and and CC 40404 456 13 angular angular JJ 40404 456 14 fragments fragment NNS 40404 456 15 than than IN 40404 456 16 with with IN 40404 456 17 fine fine JJ 40404 456 18 rounded rounded JJ 40404 456 19 grains grain NNS 40404 456 20 . . . 40404 457 1 Sooner soon RBR 40404 457 2 or or CC 40404 457 3 later later RB 40404 457 4 a a DT 40404 457 5 talus talus NN 40404 457 6 reaches reach VBZ 40404 457 7 that that IN 40404 457 8 equilibrium equilibrium NN 40404 457 9 where where WRB 40404 457 10 the the DT 40404 457 11 amount amount NN 40404 457 12 removed remove VBN 40404 457 13 from from IN 40404 457 14 its -PRON- PRP$ 40404 457 15 surface surface NN 40404 457 16 just just RB 40404 457 17 equals equal VBZ 40404 457 18 that that IN 40404 457 19 supplied supply VBD 40404 457 20 from from IN 40404 457 21 the the DT 40404 457 22 cliff cliff NN 40404 457 23 above above RB 40404 457 24 . . . 40404 458 1 As as IN 40404 458 2 the the DT 40404 458 3 talus talus NN 40404 458 4 is be VBZ 40404 458 5 removed remove VBN 40404 458 6 and and CC 40404 458 7 weathers weather VBZ 40404 458 8 away away RB 40404 458 9 its -PRON- PRP$ 40404 458 10 slope slope NN 40404 458 11 retreats retreat VBZ 40404 458 12 together together RB 40404 458 13 with with IN 40404 458 14 the the DT 40404 458 15 retreat retreat NN 40404 458 16 of of IN 40404 458 17 the the DT 40404 458 18 cliff cliff NN 40404 458 19 , , , 40404 458 20 as as IN 40404 458 21 seen see VBN 40404 458 22 in in IN 40404 458 23 Figure Figure NNP 40404 458 24 9 9 CD 40404 458 25 . . . 40404 459 1 = = NFP 40404 459 2 Graded grade VBD 40404 459 3 slopes.= slopes.= NNS 40404 459 4 Where where WRB 40404 459 5 rocks rock NNS 40404 459 6 weather weather VBP 40404 459 7 faster fast RBR 40404 459 8 than than IN 40404 459 9 their -PRON- PRP$ 40404 459 10 waste waste NN 40404 459 11 is be VBZ 40404 459 12 carried carry VBN 40404 459 13 away away RB 40404 459 14 , , , 40404 459 15 the the DT 40404 459 16 waste waste NN 40404 459 17 comes come VBZ 40404 459 18 at at IN 40404 459 19 last last RB 40404 459 20 to to TO 40404 459 21 cover cover VB 40404 459 22 all all DT 40404 459 23 rocky rocky JJ 40404 459 24 ledges ledge NNS 40404 459 25 . . . 40404 460 1 On on IN 40404 460 2 the the DT 40404 460 3 steeper steep JJR 40404 460 4 slopes slope NNS 40404 460 5 it -PRON- PRP 40404 460 6 is be VBZ 40404 460 7 coarser coarser NN 40404 460 8 and and CC 40404 460 9 in in IN 40404 460 10 more more JJR 40404 460 11 rapid rapid JJ 40404 460 12 movement movement NN 40404 460 13 than than IN 40404 460 14 on on IN 40404 460 15 slopes slope NNS 40404 460 16 more more RBR 40404 460 17 gentle gentle JJ 40404 460 18 , , , 40404 460 19 but but CC 40404 460 20 mountain mountain NN 40404 460 21 sides side NNS 40404 460 22 and and CC 40404 460 23 hills hill NNS 40404 460 24 and and CC 40404 460 25 plains plain NNS 40404 460 26 alike alike RB 40404 460 27 come come VBP 40404 460 28 to to TO 40404 460 29 be be VB 40404 460 30 mantled mantle VBN 40404 460 31 with with IN 40404 460 32 sheets sheet NNS 40404 460 33 of of IN 40404 460 34 waste waste NN 40404 460 35 which which WDT 40404 460 36 everywhere everywhere RB 40404 460 37 is be VBZ 40404 460 38 creeping creep VBG 40404 460 39 toward toward IN 40404 460 40 the the DT 40404 460 41 streams stream NNS 40404 460 42 . . . 40404 461 1 Such such JJ 40404 461 2 unbroken unbroken JJ 40404 461 3 slopes slope NNS 40404 461 4 , , , 40404 461 5 worn wear VBN 40404 461 6 or or CC 40404 461 7 built build VBN 40404 461 8 to to IN 40404 461 9 the the DT 40404 461 10 least least JJS 40404 461 11 inclination inclination NN 40404 461 12 at at IN 40404 461 13 which which WDT 40404 461 14 the the DT 40404 461 15 waste waste NN 40404 461 16 supplied supply VBN 40404 461 17 by by IN 40404 461 18 weathering weather VBG 40404 461 19 can can MD 40404 461 20 be be VB 40404 461 21 urged urge VBN 40404 461 22 onward onward RB 40404 461 23 , , , 40404 461 24 are be VBP 40404 461 25 known know VBN 40404 461 26 as as IN 40404 461 27 _ _ NNP 40404 461 28 graded grade VBD 40404 461 29 slopes slope NNS 40404 461 30 _ _ NNP 40404 461 31 . . . 40404 462 1 Of of IN 40404 462 2 far far RB 40404 462 3 less less JJR 40404 462 4 importance importance NN 40404 462 5 than than IN 40404 462 6 the the DT 40404 462 7 silent silent JJ 40404 462 8 , , , 40404 462 9 gradual gradual JJ 40404 462 10 creep creep NN 40404 462 11 of of IN 40404 462 12 waste waste NN 40404 462 13 , , , 40404 462 14 which which WDT 40404 462 15 is be VBZ 40404 462 16 going go VBG 40404 462 17 on on RP 40404 462 18 at at IN 40404 462 19 all all DT 40404 462 20 times time NNS 40404 462 21 everywhere everywhere RB 40404 462 22 about about IN 40404 462 23 us -PRON- PRP 40404 462 24 , , , 40404 462 25 are be VBP 40404 462 26 the the DT 40404 462 27 startling startling JJ 40404 462 28 local local JJ 40404 462 29 and and CC 40404 462 30 spasmodic spasmodic JJ 40404 462 31 movements movement NNS 40404 462 32 which which WDT 40404 462 33 we -PRON- PRP 40404 462 34 are be VBP 40404 462 35 now now RB 40404 462 36 to to TO 40404 462 37 describe describe VB 40404 462 38 . . . 40404 463 1 = = NFP 40404 463 2 Avalanches.= Avalanches.= NNP 40404 463 3 On on IN 40404 463 4 steep steep JJ 40404 463 5 mountain mountain NN 40404 463 6 sides side NNS 40404 463 7 the the DT 40404 463 8 accumulated accumulate VBN 40404 463 9 snows snow NNS 40404 463 10 of of IN 40404 463 11 winter winter NN 40404 463 12 often often RB 40404 463 13 slip slip VBP 40404 463 14 and and CC 40404 463 15 slide slide VBP 40404 463 16 in in IN 40404 463 17 avalanches avalanche NNS 40404 463 18 to to IN 40404 463 19 the the DT 40404 463 20 valleys valley NNS 40404 463 21 below below RB 40404 463 22 . . . 40404 464 1 These these DT 40404 464 2 rushing rush VBG 40404 464 3 torrents torrent NNS 40404 464 4 of of IN 40404 464 5 snow snow NN 40404 464 6 sweep sweep VBP 40404 464 7 their -PRON- PRP$ 40404 464 8 tracks track NNS 40404 464 9 clean clean JJ 40404 464 10 of of IN 40404 464 11 waste waste NN 40404 464 12 and and CC 40404 464 13 are be VBP 40404 464 14 one one CD 40404 464 15 of of IN 40404 464 16 Nature Nature NNP 40404 464 17 's 's POS 40404 464 18 normal normal JJ 40404 464 19 methods method NNS 40404 464 20 of of IN 40404 464 21 moving move VBG 40404 464 22 it -PRON- PRP 40404 464 23 along along IN 40404 464 24 the the DT 40404 464 25 downhill downhill JJ 40404 464 26 path path NN 40404 464 27 . . . 40404 465 1 [ [ -LRB- 40404 465 2 Illustration illustration NN 40404 465 3 : : : 40404 465 4 Fig Fig NNP 40404 465 5 . . . 40404 466 1 10 10 CD 40404 466 2 . . . 40404 467 1 A a DT 40404 467 2 Landslide Landslide NNP 40404 467 3 , , , 40404 467 4 Quebec Quebec NNP 40404 467 5 ] ] -RRB- 40404 467 6 = = VBZ 40404 467 7 Landslides.= Landslides.= NNP 40404 467 8 Another another DT 40404 467 9 common common JJ 40404 467 10 and and CC 40404 467 11 abrupt abrupt JJ 40404 467 12 method method NN 40404 467 13 of of IN 40404 467 14 delivering deliver VBG 40404 467 15 waste waste NN 40404 467 16 to to IN 40404 467 17 streams stream NNS 40404 467 18 is be VBZ 40404 467 19 by by IN 40404 467 20 slips slip NNS 40404 467 21 of of IN 40404 467 22 the the DT 40404 467 23 waste waste NN 40404 467 24 mantle mantle NN 40404 467 25 in in IN 40404 467 26 large large JJ 40404 467 27 masses masse NNS 40404 467 28 . . . 40404 468 1 After after IN 40404 468 2 long long JJ 40404 468 3 rains rain NNS 40404 468 4 and and CC 40404 468 5 after after IN 40404 468 6 winter winter NN 40404 468 7 frosts frost VBZ 40404 468 8 the the DT 40404 468 9 cohesion cohesion NN 40404 468 10 between between IN 40404 468 11 the the DT 40404 468 12 waste waste NN 40404 468 13 and and CC 40404 468 14 the the DT 40404 468 15 sound sound JJ 40404 468 16 rock rock NN 40404 468 17 beneath beneath NN 40404 468 18 is be VBZ 40404 468 19 loosened loosen VBN 40404 468 20 by by IN 40404 468 21 seeping seep VBG 40404 468 22 water water NN 40404 468 23 underground underground RB 40404 468 24 . . . 40404 469 1 The the DT 40404 469 2 waste waste NN 40404 469 3 slips slip VBZ 40404 469 4 on on IN 40404 469 5 the the DT 40404 469 6 rock rock NN 40404 469 7 surface surface NN 40404 469 8 thus thus RB 40404 469 9 lubricated lubricate VBD 40404 469 10 and and CC 40404 469 11 plunges plunge VBZ 40404 469 12 down down RP 40404 469 13 the the DT 40404 469 14 mountain mountain NN 40404 469 15 side side NN 40404 469 16 in in IN 40404 469 17 a a DT 40404 469 18 swift swift JJ 40404 469 19 roaring roar VBG 40404 469 20 torrent torrent NN 40404 469 21 of of IN 40404 469 22 mud mud NN 40404 469 23 and and CC 40404 469 24 stones stone NNS 40404 469 25 . . . 40404 470 1 [ [ -LRB- 40404 470 2 Illustration illustration NN 40404 470 3 : : : 40404 470 4 Fig Fig NNP 40404 470 5 . . . 40404 471 1 11 11 CD 40404 471 2 . . . 40404 472 1 Diagram Diagram NNP 40404 472 2 Illustrating Illustrating NNP 40404 472 3 Conditions Conditions NNPS 40404 472 4 favorable favorable JJ 40404 472 5 to to IN 40404 472 6 a a DT 40404 472 7 Landslide Landslide NNP 40404 472 8 _ _ NNP 40404 472 9 lm lm NNP 40404 472 10 _ _ NNP 40404 472 11 , , , 40404 472 12 limestone limestone NN 40404 472 13 dipping dip VBG 40404 472 14 toward toward IN 40404 472 15 valley valley NNP 40404 472 16 of of IN 40404 472 17 river river NNP 40404 472 18 , , , 40404 472 19 _ _ NNP 40404 472 20 r r NNP 40404 472 21 _ _ NNP 40404 472 22 ; ; : 40404 472 23 _ _ NNP 40404 472 24 sh sh NNP 40404 472 25 _ _ NNP 40404 472 26 , , , 40404 472 27 shale shale NNP 40404 472 28 ] ] -RRB- 40404 472 29 We -PRON- PRP 40404 472 30 may may MD 40404 472 31 conveniently conveniently RB 40404 472 32 mention mention VB 40404 472 33 here here RB 40404 472 34 a a DT 40404 472 35 second second JJ 40404 472 36 type type NN 40404 472 37 of of IN 40404 472 38 landslide landslide NN 40404 472 39 , , , 40404 472 40 where where WRB 40404 472 41 masses masse NNS 40404 472 42 of of IN 40404 472 43 solid solid JJ 40404 472 44 rock rock NN 40404 472 45 as as RB 40404 472 46 well well RB 40404 472 47 as as IN 40404 472 48 the the DT 40404 472 49 mantle mantle NN 40404 472 50 of of IN 40404 472 51 waste waste NN 40404 472 52 are be VBP 40404 472 53 involved involve VBN 40404 472 54 in in IN 40404 472 55 the the DT 40404 472 56 sudden sudden JJ 40404 472 57 movement movement NN 40404 472 58 . . . 40404 473 1 Such such JJ 40404 473 2 slips slip NNS 40404 473 3 occur occur VBP 40404 473 4 when when WRB 40404 473 5 valleys valley NNS 40404 473 6 have have VBP 40404 473 7 been be VBN 40404 473 8 rapidly rapidly RB 40404 473 9 deepened deepen VBN 40404 473 10 by by IN 40404 473 11 streams stream NNS 40404 473 12 or or CC 40404 473 13 glaciers glacier NNS 40404 473 14 and and CC 40404 473 15 their -PRON- PRP$ 40404 473 16 sides side NNS 40404 473 17 have have VBP 40404 473 18 not not RB 40404 473 19 yet yet RB 40404 473 20 been be VBN 40404 473 21 graded grade VBN 40404 473 22 . . . 40404 474 1 A a DT 40404 474 2 favorable favorable JJ 40404 474 3 condition condition NN 40404 474 4 is be VBZ 40404 474 5 where where WRB 40404 474 6 the the DT 40404 474 7 strata strata NN 40404 474 8 dip dip NN 40404 474 9 ( ( -LRB- 40404 474 10 i.e. i.e. FW 40404 475 1 incline incline NN 40404 475 2 downwards downward NNS 40404 475 3 ) ) -RRB- 40404 475 4 towards towards IN 40404 475 5 the the DT 40404 475 6 valley valley NN 40404 475 7 ( ( -LRB- 40404 475 8 Fig fig NN 40404 475 9 . . . 40404 476 1 11 11 CD 40404 476 2 ) ) -RRB- 40404 476 3 , , , 40404 476 4 or or CC 40404 476 5 are be VBP 40404 476 6 broken break VBN 40404 476 7 by by IN 40404 476 8 joint joint JJ 40404 476 9 planes plane NNS 40404 476 10 dipping dip VBG 40404 476 11 in in IN 40404 476 12 the the DT 40404 476 13 same same JJ 40404 476 14 direction direction NN 40404 476 15 . . . 40404 477 1 The the DT 40404 477 2 upper upper JJ 40404 477 3 layers layer NNS 40404 477 4 , , , 40404 477 5 including include VBG 40404 477 6 perhaps perhaps RB 40404 477 7 the the DT 40404 477 8 entire entire JJ 40404 477 9 mountain mountain NN 40404 477 10 side side NN 40404 477 11 , , , 40404 477 12 have have VBP 40404 477 13 been be VBN 40404 477 14 cut cut VBN 40404 477 15 across across RP 40404 477 16 by by IN 40404 477 17 the the DT 40404 477 18 valley valley NNP 40404 477 19 trench trench NN 40404 477 20 and and CC 40404 477 21 are be VBP 40404 477 22 left leave VBN 40404 477 23 supported support VBN 40404 477 24 only only RB 40404 477 25 on on IN 40404 477 26 the the DT 40404 477 27 inclined incline VBN 40404 477 28 surface surface NN 40404 477 29 of of IN 40404 477 30 the the DT 40404 477 31 underlying underlie VBG 40404 477 32 rocks rock NNS 40404 477 33 . . . 40404 478 1 Water water NN 40404 478 2 may may MD 40404 478 3 percolate percolate VB 40404 478 4 underground underground RB 40404 478 5 along along IN 40404 478 6 this this DT 40404 478 7 surface surface NN 40404 478 8 and and CC 40404 478 9 loosen loosen VB 40404 478 10 the the DT 40404 478 11 cohesion cohesion NN 40404 478 12 between between IN 40404 478 13 the the DT 40404 478 14 upper upper JJ 40404 478 15 and and CC 40404 478 16 the the DT 40404 478 17 underlying underlie VBG 40404 478 18 strata strata NN 40404 478 19 by by IN 40404 478 20 converting convert VBG 40404 478 21 the the DT 40404 478 22 upper upper JJ 40404 478 23 surface surface NN 40404 478 24 of of IN 40404 478 25 a a DT 40404 478 26 shale shale NN 40404 478 27 to to IN 40404 478 28 soft soft JJ 40404 478 29 wet wet JJ 40404 478 30 clay clay NN 40404 478 31 , , , 40404 478 32 by by IN 40404 478 33 dissolving dissolve VBG 40404 478 34 layers layer NNS 40404 478 35 of of IN 40404 478 36 a a DT 40404 478 37 limestone limestone NN 40404 478 38 , , , 40404 478 39 or or CC 40404 478 40 by by IN 40404 478 41 removing remove VBG 40404 478 42 the the DT 40404 478 43 cement cement NN 40404 478 44 of of IN 40404 478 45 a a DT 40404 478 46 sandstone sandstone NN 40404 478 47 and and CC 40404 478 48 converting convert VBG 40404 478 49 it -PRON- PRP 40404 478 50 into into IN 40404 478 51 loose loose JJ 40404 478 52 sand sand NN 40404 478 53 . . . 40404 479 1 When when WRB 40404 479 2 the the DT 40404 479 3 inclined incline VBN 40404 479 4 surface surface NN 40404 479 5 is be VBZ 40404 479 6 thus thus RB 40404 479 7 lubricated lubricate VBN 40404 479 8 the the DT 40404 479 9 overlying overlying NN 40404 479 10 masses masse NNS 40404 479 11 may may MD 40404 479 12 be be VB 40404 479 13 launched launch VBN 40404 479 14 into into IN 40404 479 15 the the DT 40404 479 16 valley valley NN 40404 479 17 below below RB 40404 479 18 . . . 40404 480 1 The the DT 40404 480 2 solid solid JJ 40404 480 3 rocks rock NNS 40404 480 4 are be VBP 40404 480 5 broken break VBN 40404 480 6 and and CC 40404 480 7 crushed crush VBN 40404 480 8 in in IN 40404 480 9 sliding slide VBG 40404 480 10 and and CC 40404 480 11 converted convert VBN 40404 480 12 into into IN 40404 480 13 waste waste NN 40404 480 14 consisting consist VBG 40404 480 15 , , , 40404 480 16 like like IN 40404 480 17 that that DT 40404 480 18 of of IN 40404 480 19 talus talus NN 40404 480 20 , , , 40404 480 21 of of IN 40404 480 22 angular angular JJ 40404 480 23 unsorted unsorted JJ 40404 480 24 fragments fragment NNS 40404 480 25 , , , 40404 480 26 blocks block NNS 40404 480 27 of of IN 40404 480 28 all all DT 40404 480 29 sizes size NNS 40404 480 30 being be VBG 40404 480 31 mingled mingle VBN 40404 480 32 pell pell NN 40404 480 33 - - HYPH 40404 480 34 mell mell NNP 40404 480 35 with with IN 40404 480 36 rock rock NNP 40404 480 37 meal meal NN 40404 480 38 and and CC 40404 480 39 dust dust NN 40404 480 40 . . . 40404 481 1 The the DT 40404 481 2 principal principal JJ 40404 481 3 effects effect NNS 40404 481 4 of of IN 40404 481 5 landslides landslide NNS 40404 481 6 may may MD 40404 481 7 be be VB 40404 481 8 gathered gather VBN 40404 481 9 from from IN 40404 481 10 the the DT 40404 481 11 following follow VBG 40404 481 12 examples example NNS 40404 481 13 . . . 40404 482 1 At at IN 40404 482 2 Gohna Gohna NNP 40404 482 3 , , , 40404 482 4 India India NNP 40404 482 5 , , , 40404 482 6 in in IN 40404 482 7 1893 1893 CD 40404 482 8 , , , 40404 482 9 the the DT 40404 482 10 face face NN 40404 482 11 of of IN 40404 482 12 a a DT 40404 482 13 spur spur NN 40404 482 14 four four CD 40404 482 15 thousand thousand CD 40404 482 16 feet foot NNS 40404 482 17 high high JJ 40404 482 18 , , , 40404 482 19 of of IN 40404 482 20 the the DT 40404 482 21 lower low JJR 40404 482 22 ranges range NNS 40404 482 23 of of IN 40404 482 24 the the DT 40404 482 25 Himalayas Himalayas NNP 40404 482 26 , , , 40404 482 27 slipped slip VBD 40404 482 28 into into IN 40404 482 29 the the DT 40404 482 30 gorge gorge NN 40404 482 31 of of IN 40404 482 32 the the DT 40404 482 33 headwaters headwater NNS 40404 482 34 of of IN 40404 482 35 the the DT 40404 482 36 Ganges Ganges NNP 40404 482 37 River River NNP 40404 482 38 in in IN 40404 482 39 successive successive JJ 40404 482 40 rock rock NN 40404 482 41 falls fall VBZ 40404 482 42 which which WDT 40404 482 43 lasted last VBD 40404 482 44 for for IN 40404 482 45 three three CD 40404 482 46 days day NNS 40404 482 47 . . . 40404 483 1 Blocks block NNS 40404 483 2 of of IN 40404 483 3 stone stone NN 40404 483 4 were be VBD 40404 483 5 projected project VBN 40404 483 6 for for IN 40404 483 7 a a DT 40404 483 8 mile mile NN 40404 483 9 , , , 40404 483 10 and and CC 40404 483 11 clouds cloud NNS 40404 483 12 of of IN 40404 483 13 limestone limestone NN 40404 483 14 dust dust NN 40404 483 15 were be VBD 40404 483 16 spread spread VBN 40404 483 17 over over IN 40404 483 18 the the DT 40404 483 19 surrounding surround VBG 40404 483 20 country country NN 40404 483 21 . . . 40404 484 1 The the DT 40404 484 2 débris débris NN 40404 484 3 formed form VBD 40404 484 4 a a DT 40404 484 5 dam dam NN 40404 484 6 one one CD 40404 484 7 thousand thousand CD 40404 484 8 feet foot NNS 40404 484 9 high high JJ 40404 484 10 , , , 40404 484 11 extending extend VBG 40404 484 12 for for IN 40404 484 13 two two CD 40404 484 14 miles mile NNS 40404 484 15 along along IN 40404 484 16 the the DT 40404 484 17 valley valley NN 40404 484 18 . . . 40404 485 1 A a DT 40404 485 2 lake lake NN 40404 485 3 gathered gather VBD 40404 485 4 behind behind IN 40404 485 5 this this DT 40404 485 6 barrier barrier NN 40404 485 7 , , , 40404 485 8 gradually gradually RB 40404 485 9 rising rise VBG 40404 485 10 until until IN 40404 485 11 it -PRON- PRP 40404 485 12 overtopped overtop VBD 40404 485 13 it -PRON- PRP 40404 485 14 in in IN 40404 485 15 a a DT 40404 485 16 little little JJ 40404 485 17 less less JJR 40404 485 18 than than IN 40404 485 19 a a DT 40404 485 20 year year NN 40404 485 21 . . . 40404 486 1 The the DT 40404 486 2 upper upper JJ 40404 486 3 portion portion NN 40404 486 4 of of IN 40404 486 5 the the DT 40404 486 6 dam dam NN 40404 486 7 then then RB 40404 486 8 broke break VBD 40404 486 9 , , , 40404 486 10 and and CC 40404 486 11 a a DT 40404 486 12 terrific terrific JJ 40404 486 13 rush rush NN 40404 486 14 of of IN 40404 486 15 water water NN 40404 486 16 swept sweep VBD 40404 486 17 down down IN 40404 486 18 the the DT 40404 486 19 valley valley NN 40404 486 20 in in IN 40404 486 21 a a DT 40404 486 22 wave wave NN 40404 486 23 which which WDT 40404 486 24 , , , 40404 486 25 twenty twenty CD 40404 486 26 miles mile NNS 40404 486 27 away away RB 40404 486 28 , , , 40404 486 29 rose rise VBD 40404 486 30 one one CD 40404 486 31 hundred hundred CD 40404 486 32 and and CC 40404 486 33 sixty sixty CD 40404 486 34 feet foot NNS 40404 486 35 in in IN 40404 486 36 height height NN 40404 486 37 . . . 40404 487 1 A a DT 40404 487 2 narrow narrow JJ 40404 487 3 lake lake NN 40404 487 4 is be VBZ 40404 487 5 still still RB 40404 487 6 held hold VBN 40404 487 7 by by IN 40404 487 8 the the DT 40404 487 9 strong strong JJ 40404 487 10 base base NN 40404 487 11 of of IN 40404 487 12 the the DT 40404 487 13 dam dam NN 40404 487 14 . . . 40404 488 1 In in IN 40404 488 2 1896 1896 CD 40404 488 3 , , , 40404 488 4 after after IN 40404 488 5 forty forty CD 40404 488 6 days day NNS 40404 488 7 of of IN 40404 488 8 incessant incessant JJ 40404 488 9 rain rain NN 40404 488 10 , , , 40404 488 11 a a DT 40404 488 12 cliff cliff NN 40404 488 13 of of IN 40404 488 14 sandstone sandstone NN 40404 488 15 slipped slip VBD 40404 488 16 into into IN 40404 488 17 the the DT 40404 488 18 Yangtse Yangtse NNP 40404 488 19 River River NNP 40404 488 20 in in IN 40404 488 21 China China NNP 40404 488 22 , , , 40404 488 23 reducing reduce VBG 40404 488 24 the the DT 40404 488 25 width width NN 40404 488 26 of of IN 40404 488 27 the the DT 40404 488 28 channel channel NN 40404 488 29 to to IN 40404 488 30 eighty eighty CD 40404 488 31 yards yard NNS 40404 488 32 and and CC 40404 488 33 causing cause VBG 40404 488 34 formidable formidable JJ 40404 488 35 rapids rapid NNS 40404 488 36 . . . 40404 489 1 [ [ -LRB- 40404 489 2 Illustration illustration NN 40404 489 3 : : : 40404 489 4 Fig Fig NNP 40404 489 5 . . . 40404 490 1 12 12 CD 40404 490 2 . . . 40404 491 1 Bowlders bowlder NNS 40404 491 2 of of IN 40404 491 3 Weathering Weathering NNP 40404 491 4 , , , 40404 491 5 Granite Granite NNP 40404 491 6 Quarry Quarry NNP 40404 491 7 , , , 40404 491 8 Cape Cape NNP 40404 491 9 Ann Ann NNP 40404 491 10 , , , 40404 491 11 Massachusetts Massachusetts NNP 40404 491 12 ] ] -RRB- 40404 491 13 At at IN 40404 491 14 Flims Flims NNP 40404 491 15 , , , 40404 491 16 in in IN 40404 491 17 Switzerland Switzerland NNP 40404 491 18 , , , 40404 491 19 a a DT 40404 491 20 prehistoric prehistoric JJ 40404 491 21 landslip landslip NN 40404 491 22 flung fling VBD 40404 491 23 a a DT 40404 491 24 dam dam NN 40404 491 25 eighteen eighteen CD 40404 491 26 hundred hundred CD 40404 491 27 feet foot NNS 40404 491 28 high high RB 40404 491 29 across across IN 40404 491 30 the the DT 40404 491 31 headwaters headwater NNS 40404 491 32 of of IN 40404 491 33 the the DT 40404 491 34 Rhine Rhine NNP 40404 491 35 . . . 40404 492 1 If if IN 40404 492 2 spread spread VBN 40404 492 3 evenly evenly RB 40404 492 4 over over IN 40404 492 5 a a DT 40404 492 6 surface surface NN 40404 492 7 of of IN 40404 492 8 twenty twenty CD 40404 492 9 - - HYPH 40404 492 10 eight eight CD 40404 492 11 square square JJ 40404 492 12 miles mile NNS 40404 492 13 , , , 40404 492 14 the the DT 40404 492 15 material material NN 40404 492 16 would would MD 40404 492 17 cover cover VB 40404 492 18 it -PRON- PRP 40404 492 19 to to IN 40404 492 20 a a DT 40404 492 21 depth depth NN 40404 492 22 of of IN 40404 492 23 six six CD 40404 492 24 hundred hundred CD 40404 492 25 and and CC 40404 492 26 sixty sixty CD 40404 492 27 feet foot NNS 40404 492 28 . . . 40404 493 1 The the DT 40404 493 2 barrier barrier NN 40404 493 3 is be VBZ 40404 493 4 not not RB 40404 493 5 yet yet RB 40404 493 6 entirely entirely RB 40404 493 7 cut cut VBN 40404 493 8 away away RB 40404 493 9 , , , 40404 493 10 and and CC 40404 493 11 several several JJ 40404 493 12 lakes lake NNS 40404 493 13 are be VBP 40404 493 14 held hold VBN 40404 493 15 in in IN 40404 493 16 shallow shallow JJ 40404 493 17 basins basin NNS 40404 493 18 on on IN 40404 493 19 its -PRON- PRP$ 40404 493 20 hummocky hummocky JJ 40404 493 21 surface surface NN 40404 493 22 . . . 40404 494 1 A a DT 40404 494 2 slide slide NN 40404 494 3 from from IN 40404 494 4 the the DT 40404 494 5 precipitous precipitous JJ 40404 494 6 river river NN 40404 494 7 front front NN 40404 494 8 of of IN 40404 494 9 the the DT 40404 494 10 citadel citadel JJ 40404 494 11 hill hill NN 40404 494 12 of of IN 40404 494 13 Quebec Quebec NNP 40404 494 14 , , , 40404 494 15 in in IN 40404 494 16 1889 1889 CD 40404 494 17 , , , 40404 494 18 dashed dash VBN 40404 494 19 across across IN 40404 494 20 Champlain Champlain NNP 40404 494 21 Street Street NNP 40404 494 22 , , , 40404 494 23 wrecking wreck VBG 40404 494 24 a a DT 40404 494 25 number number NN 40404 494 26 of of IN 40404 494 27 houses house NNS 40404 494 28 and and CC 40404 494 29 causing cause VBG 40404 494 30 the the DT 40404 494 31 death death NN 40404 494 32 of of IN 40404 494 33 forty forty CD 40404 494 34 - - HYPH 40404 494 35 five five CD 40404 494 36 persons person NNS 40404 494 37 . . . 40404 495 1 The the DT 40404 495 2 strata strata NN 40404 495 3 here here RB 40404 495 4 are be VBP 40404 495 5 composed compose VBN 40404 495 6 of of IN 40404 495 7 steeply steeply RB 40404 495 8 dipping dip VBG 40404 495 9 slate slate NN 40404 495 10 ( ( -LRB- 40404 495 11 Fig fig NN 40404 495 12 . . . 40404 496 1 10 10 LS 40404 496 2 ) ) -RRB- 40404 496 3 . . . 40404 497 1 In in IN 40404 497 2 lofty lofty JJ 40404 497 3 mountain mountain NN 40404 497 4 ranges range NNS 40404 497 5 there there EX 40404 497 6 may may MD 40404 497 7 not not RB 40404 497 8 be be VB 40404 497 9 a a DT 40404 497 10 single single JJ 40404 497 11 valley valley NN 40404 497 12 without without IN 40404 497 13 its -PRON- PRP$ 40404 497 14 traces trace NNS 40404 497 15 of of IN 40404 497 16 landslides landslide NNS 40404 497 17 , , , 40404 497 18 so so RB 40404 497 19 common common JJ 40404 497 20 there there EX 40404 497 21 is be VBZ 40404 497 22 this this DT 40404 497 23 method method NN 40404 497 24 of of IN 40404 497 25 the the DT 40404 497 26 movement movement NN 40404 497 27 of of IN 40404 497 28 waste waste NNP 40404 497 29 , , , 40404 497 30 and and CC 40404 497 31 of of IN 40404 497 32 building build VBG 40404 497 33 to to TO 40404 497 34 grade grade VB 40404 497 35 over over RB 40404 497 36 - - HYPH 40404 497 37 steepened steepened JJ 40404 497 38 slopes slope NNS 40404 497 39 . . . 40404 498 1 Rock rock VB 40404 498 2 Sculpture sculpture NN 40404 498 3 By by IN 40404 498 4 Weathering weather VBG 40404 498 5 We -PRON- PRP 40404 498 6 are be VBP 40404 498 7 now now RB 40404 498 8 to to TO 40404 498 9 consider consider VB 40404 498 10 a a DT 40404 498 11 few few JJ 40404 498 12 of of IN 40404 498 13 the the DT 40404 498 14 forms form NNS 40404 498 15 into into IN 40404 498 16 which which WDT 40404 498 17 rock rock NN 40404 498 18 masses masse NNS 40404 498 19 are be VBP 40404 498 20 carved carve VBN 40404 498 21 by by IN 40404 498 22 the the DT 40404 498 23 weather weather NN 40404 498 24 . . . 40404 499 1 [ [ -LRB- 40404 499 2 Illustration illustration NN 40404 499 3 : : : 40404 499 4 Fig Fig NNP 40404 499 5 . . . 40404 500 1 13 13 CD 40404 500 2 . . . 40404 501 1 Differential Differential NNP 40404 501 2 Weathering Weathering NNP 40404 501 3 on on IN 40404 501 4 a a DT 40404 501 5 Monument Monument NNP 40404 501 6 , , , 40404 501 7 Colorado Colorado NNP 40404 501 8 ] ] -RRB- 40404 501 9 = = SYM 40404 501 10 Bowlders bowlder NNS 40404 501 11 of of IN 40404 501 12 weathering.= weathering.= NN 40404 501 13 In in IN 40404 501 14 many many JJ 40404 501 15 quarries quarry NNS 40404 501 16 and and CC 40404 501 17 outcrops outcrop VBZ 40404 501 18 we -PRON- PRP 40404 501 19 may may MD 40404 501 20 see see VB 40404 501 21 that that IN 40404 501 22 the the DT 40404 501 23 blocks block NNS 40404 501 24 into into IN 40404 501 25 which which WDT 40404 501 26 one one CD 40404 501 27 or or CC 40404 501 28 more more JJR 40404 501 29 of of IN 40404 501 30 the the DT 40404 501 31 uppermost uppermost JJ 40404 501 32 layers layer NNS 40404 501 33 have have VBP 40404 501 34 been be VBN 40404 501 35 broken break VBN 40404 501 36 along along IN 40404 501 37 their -PRON- PRP$ 40404 501 38 joints joint NNS 40404 501 39 and and CC 40404 501 40 bedding bed VBG 40404 501 41 planes plane NNS 40404 501 42 are be VBP 40404 501 43 no no RB 40404 501 44 longer long RBR 40404 501 45 angular angular JJ 40404 501 46 , , , 40404 501 47 as as IN 40404 501 48 are be VBP 40404 501 49 those those DT 40404 501 50 of of IN 40404 501 51 the the DT 40404 501 52 layers layer NNS 40404 501 53 below below RB 40404 501 54 . . . 40404 502 1 The the DT 40404 502 2 edges edge NNS 40404 502 3 and and CC 40404 502 4 corners corner NNS 40404 502 5 of of IN 40404 502 6 these these DT 40404 502 7 blocks block NNS 40404 502 8 have have VBP 40404 502 9 been be VBN 40404 502 10 worn wear VBN 40404 502 11 away away RP 40404 502 12 by by IN 40404 502 13 the the DT 40404 502 14 weather weather NN 40404 502 15 . . . 40404 503 1 Such such JJ 40404 503 2 rounded rounded JJ 40404 503 3 cores core NNS 40404 503 4 , , , 40404 503 5 known know VBN 40404 503 6 as as IN 40404 503 7 bowlders bowlder NNS 40404 503 8 of of IN 40404 503 9 weathering weathering NN 40404 503 10 , , , 40404 503 11 are be VBP 40404 503 12 often often RB 40404 503 13 left leave VBN 40404 503 14 to to TO 40404 503 15 strew strew VB 40404 503 16 the the DT 40404 503 17 surface surface NN 40404 503 18 . . . 40404 504 1 = = NFP 40404 504 2 Differential Differential NNP 40404 504 3 weathering.= weathering.= NNP 40404 504 4 This this DT 40404 504 5 term term NN 40404 504 6 covers cover VBZ 40404 504 7 all all DT 40404 504 8 cases case NNS 40404 504 9 in in IN 40404 504 10 which which WDT 40404 504 11 a a DT 40404 504 12 rock rock NN 40404 504 13 mass mass NN 40404 504 14 weathers weather NNS 40404 504 15 differently differently RB 40404 504 16 in in IN 40404 504 17 different different JJ 40404 504 18 portions portion NNS 40404 504 19 . . . 40404 505 1 Any any DT 40404 505 2 weaker weak JJR 40404 505 3 spots spot NNS 40404 505 4 or or CC 40404 505 5 layers layer NNS 40404 505 6 are be VBP 40404 505 7 etched etch VBN 40404 505 8 out out RP 40404 505 9 on on IN 40404 505 10 the the DT 40404 505 11 surface surface NN 40404 505 12 , , , 40404 505 13 leaving leave VBG 40404 505 14 the the DT 40404 505 15 more more RBR 40404 505 16 resistant resistant JJ 40404 505 17 in in IN 40404 505 18 relief relief NN 40404 505 19 . . . 40404 506 1 Thus thus RB 40404 506 2 massive massive JJ 40404 506 3 limestones limestone NNS 40404 506 4 become become VBP 40404 506 5 pitted pitted JJ 40404 506 6 where where WRB 40404 506 7 the the DT 40404 506 8 weather weather NN 40404 506 9 drills drill VBZ 40404 506 10 out out RP 40404 506 11 the the DT 40404 506 12 weaker weak JJR 40404 506 13 portions portion NNS 40404 506 14 . . . 40404 507 1 In in IN 40404 507 2 these these DT 40404 507 3 pits pit NNS 40404 507 4 , , , 40404 507 5 when when WRB 40404 507 6 once once IN 40404 507 7 they -PRON- PRP 40404 507 8 are be VBP 40404 507 9 formed form VBN 40404 507 10 , , , 40404 507 11 moisture moisture NN 40404 507 12 gathers gather NNS 40404 507 13 , , , 40404 507 14 a a DT 40404 507 15 little little JJ 40404 507 16 soil soil NN 40404 507 17 collects collect NNS 40404 507 18 , , , 40404 507 19 vegetation vegetation NN 40404 507 20 takes take VBZ 40404 507 21 root root NN 40404 507 22 , , , 40404 507 23 and and CC 40404 507 24 thus thus RB 40404 507 25 they -PRON- PRP 40404 507 26 are be VBP 40404 507 27 further further RB 40404 507 28 enlarged enlarge VBN 40404 507 29 until until IN 40404 507 30 the the DT 40404 507 31 limestone limestone NN 40404 507 32 may may MD 40404 507 33 be be VB 40404 507 34 deeply deeply RB 40404 507 35 honeycombed honeycomb VBN 40404 507 36 . . . 40404 508 1 [ [ -LRB- 40404 508 2 Illustration illustration NN 40404 508 3 : : : 40404 508 4 Fig Fig NNP 40404 508 5 . . . 40404 509 1 14 14 CD 40404 509 2 . . . 40404 510 1 Honeycombed Honeycombed NNP 40404 510 2 Limestone Limestone NNP 40404 510 3 , , , 40404 510 4 Iowa Iowa NNP 40404 510 5 ] ] -RRB- 40404 510 6 [ [ -LRB- 40404 510 7 Illustration illustration NN 40404 510 8 : : : 40404 510 9 Fig Fig NNP 40404 510 10 . . . 40404 511 1 15 15 CD 40404 511 2 . . . 40404 512 1 Cliffs Cliffs NNPS 40404 512 2 and and CC 40404 512 3 Slopes slope NNS 40404 512 4 on on IN 40404 512 5 North North NNP 40404 512 6 Wall Wall NNP 40404 512 7 of of IN 40404 512 8 the the DT 40404 512 9 Grand Grand NNP 40404 512 10 Canyon Canyon NNP 40404 512 11 of of IN 40404 512 12 the the DT 40404 512 13 Colorado Colorado NNP 40404 512 14 River River NNP 40404 512 15 , , , 40404 512 16 Arizona Arizona NNP 40404 512 17 ] ] -RRB- 40404 512 18 On on IN 40404 512 19 the the DT 40404 512 20 sides side NNS 40404 512 21 of of IN 40404 512 22 canyons canyon NNS 40404 512 23 , , , 40404 512 24 and and CC 40404 512 25 elsewhere elsewhere RB 40404 512 26 where where WRB 40404 512 27 the the DT 40404 512 28 edges edge NNS 40404 512 29 of of IN 40404 512 30 strata stratum NNS 40404 512 31 are be VBP 40404 512 32 exposed expose VBN 40404 512 33 , , , 40404 512 34 the the DT 40404 512 35 harder hard JJR 40404 512 36 layers layer NNS 40404 512 37 project project NN 40404 512 38 as as IN 40404 512 39 cliffs cliff NNS 40404 512 40 , , , 40404 512 41 while while IN 40404 512 42 the the DT 40404 512 43 softer soft JJR 40404 512 44 weather weather NN 40404 512 45 back back RB 40404 512 46 to to IN 40404 512 47 slopes slope NNS 40404 512 48 covered cover VBN 40404 512 49 with with IN 40404 512 50 the the DT 40404 512 51 talus talus NN 40404 512 52 of of IN 40404 512 53 the the DT 40404 512 54 harder hard JJR 40404 512 55 layers layer NNS 40404 512 56 above above IN 40404 512 57 them -PRON- PRP 40404 512 58 . . . 40404 513 1 It -PRON- PRP 40404 513 2 is be VBZ 40404 513 3 convenient convenient JJ 40404 513 4 to to TO 40404 513 5 call call VB 40404 513 6 the the DT 40404 513 7 former former JJ 40404 513 8 _ _ NNP 40404 513 9 cliff cliff NN 40404 513 10 makers maker NNS 40404 513 11 _ _ NNP 40404 513 12 and and CC 40404 513 13 the the DT 40404 513 14 latter latter JJ 40404 513 15 _ _ NNP 40404 513 16 slope slope NN 40404 513 17 makers maker NNS 40404 513 18 _ _ NNP 40404 513 19 ( ( -LRB- 40404 513 20 Fig Fig NNP 40404 513 21 . . . 40404 514 1 15 15 CD 40404 514 2 ) ) -RRB- 40404 514 3 . . . 40404 515 1 Differential differential JJ 40404 515 2 weathering weathering NN 40404 515 3 plays play VBZ 40404 515 4 a a DT 40404 515 5 large large JJ 40404 515 6 part part NN 40404 515 7 in in IN 40404 515 8 the the DT 40404 515 9 sculpture sculpture NN 40404 515 10 of of IN 40404 515 11 the the DT 40404 515 12 land land NN 40404 515 13 . . . 40404 516 1 Areas area NNS 40404 516 2 of of IN 40404 516 3 weak weak JJ 40404 516 4 rock rock NN 40404 516 5 are be VBP 40404 516 6 wasted waste VBN 40404 516 7 to to IN 40404 516 8 plains plain NNS 40404 516 9 , , , 40404 516 10 while while IN 40404 516 11 areas area NNS 40404 516 12 of of IN 40404 516 13 hard hard JJ 40404 516 14 rock rock NN 40404 516 15 adjacent adjacent JJ 40404 516 16 are be VBP 40404 516 17 still still RB 40404 516 18 left leave VBN 40404 516 19 as as IN 40404 516 20 hills hill NNS 40404 516 21 and and CC 40404 516 22 mountain mountain NN 40404 516 23 ridges ridge NNS 40404 516 24 , , , 40404 516 25 as as IN 40404 516 26 in in IN 40404 516 27 the the DT 40404 516 28 valleys valley NNS 40404 516 29 and and CC 40404 516 30 mountains mountain NNS 40404 516 31 of of IN 40404 516 32 eastern eastern JJ 40404 516 33 Pennsylvania Pennsylvania NNP 40404 516 34 . . . 40404 517 1 But but CC 40404 517 2 in in IN 40404 517 3 such such JJ 40404 517 4 instances instance NNS 40404 517 5 the the DT 40404 517 6 lowering lowering NN 40404 517 7 of of IN 40404 517 8 the the DT 40404 517 9 surface surface NN 40404 517 10 of of IN 40404 517 11 the the DT 40404 517 12 weaker weak JJR 40404 517 13 rock rock NN 40404 517 14 is be VBZ 40404 517 15 also also RB 40404 517 16 due due JJ 40404 517 17 to to IN 40404 517 18 the the DT 40404 517 19 wear wear NN 40404 517 20 of of IN 40404 517 21 streams stream NNS 40404 517 22 , , , 40404 517 23 and and CC 40404 517 24 especially especially RB 40404 517 25 to to IN 40404 517 26 the the DT 40404 517 27 removal removal NN 40404 517 28 by by IN 40404 517 29 them -PRON- PRP 40404 517 30 from from IN 40404 517 31 the the DT 40404 517 32 land land NN 40404 517 33 of of IN 40404 517 34 the the DT 40404 517 35 waste waste NN 40404 517 36 which which WDT 40404 517 37 covers cover VBZ 40404 517 38 and and CC 40404 517 39 protects protect VBZ 40404 517 40 the the DT 40404 517 41 rocks rock NNS 40404 517 42 beneath beneath RB 40404 517 43 . . . 40404 518 1 [ [ -LRB- 40404 518 2 Illustration illustration NN 40404 518 3 : : : 40404 518 4 Fig Fig NNP 40404 518 5 . . . 40404 519 1 16 16 CD 40404 519 2 . . . 40404 520 1 Taverlone Taverlone NNP 40404 520 2 Mesa Mesa NNP 40404 520 3 , , , 40404 520 4 New New NNP 40404 520 5 Mexico Mexico NNP 40404 520 6 ] ] -RRB- 40404 520 7 Rocks rock NNS 40404 520 8 owe owe VBP 40404 520 9 their -PRON- PRP$ 40404 520 10 weakness weakness NN 40404 520 11 to to IN 40404 520 12 several several JJ 40404 520 13 different different JJ 40404 520 14 causes cause NNS 40404 520 15 . . . 40404 521 1 Some some DT 40404 521 2 , , , 40404 521 3 such such JJ 40404 521 4 as as IN 40404 521 5 beds bed NNS 40404 521 6 of of IN 40404 521 7 loose loose JJ 40404 521 8 sand sand NN 40404 521 9 , , , 40404 521 10 are be VBP 40404 521 11 soft soft JJ 40404 521 12 and and CC 40404 521 13 easily easily RB 40404 521 14 worn wear VBN 40404 521 15 by by IN 40404 521 16 rains rain NNS 40404 521 17 ; ; : 40404 521 18 some some DT 40404 521 19 , , , 40404 521 20 as as IN 40404 521 21 limestone limestone NN 40404 521 22 and and CC 40404 521 23 gypsum gypsum NN 40404 521 24 for for IN 40404 521 25 example example NN 40404 521 26 , , , 40404 521 27 are be VBP 40404 521 28 soluble soluble JJ 40404 521 29 . . . 40404 522 1 Even even RB 40404 522 2 hard hard JJ 40404 522 3 insoluble insoluble JJ 40404 522 4 rocks rock NNS 40404 522 5 are be VBP 40404 522 6 weak weak JJ 40404 522 7 under under IN 40404 522 8 the the DT 40404 522 9 attack attack NN 40404 522 10 of of IN 40404 522 11 the the DT 40404 522 12 weather weather NN 40404 522 13 when when WRB 40404 522 14 they -PRON- PRP 40404 522 15 are be VBP 40404 522 16 closely closely RB 40404 522 17 divided divide VBN 40404 522 18 by by IN 40404 522 19 joints joint NNS 40404 522 20 and and CC 40404 522 21 bedding bed VBG 40404 522 22 planes plane NNS 40404 522 23 and and CC 40404 522 24 are be VBP 40404 522 25 thus thus RB 40404 522 26 readily readily RB 40404 522 27 broken break VBN 40404 522 28 up up RP 40404 522 29 into into IN 40404 522 30 blocks block NNS 40404 522 31 by by IN 40404 522 32 mechanical mechanical JJ 40404 522 33 agencies agency NNS 40404 522 34 . . . 40404 523 1 [ [ -LRB- 40404 523 2 Illustration illustration NN 40404 523 3 : : : 40404 523 4 Fig Fig NNP 40404 523 5 . . . 40404 524 1 17 17 CD 40404 524 2 . . . 40404 525 1 Monuments monument NNS 40404 525 2 , , , 40404 525 3 Arizona Arizona NNP 40404 525 4 Note note VBP 40404 525 5 the the DT 40404 525 6 rain rain NN 40404 525 7 furrows furrow VBZ 40404 525 8 on on IN 40404 525 9 the the DT 40404 525 10 slope slope NN 40404 525 11 at at IN 40404 525 12 the the DT 40404 525 13 foot foot NN 40404 525 14 of of IN 40404 525 15 the the DT 40404 525 16 monuments monument NNS 40404 525 17 . . . 40404 526 1 In in IN 40404 526 2 the the DT 40404 526 3 foreground foreground NN 40404 526 4 are be VBP 40404 526 5 seen see VBN 40404 526 6 fragments fragment NNS 40404 526 7 of of IN 40404 526 8 petrified petrified JJ 40404 526 9 trunks trunk NNS 40404 526 10 of of IN 40404 526 11 trees tree NNS 40404 526 12 , , , 40404 526 13 composed compose VBN 40404 526 14 of of IN 40404 526 15 silica silica NN 40404 526 16 and and CC 40404 526 17 extremely extremely RB 40404 526 18 resistant resistant JJ 40404 526 19 to to IN 40404 526 20 the the DT 40404 526 21 weather weather NN 40404 526 22 . . . 40404 527 1 On on IN 40404 527 2 the the DT 40404 527 3 removal removal NN 40404 527 4 of of IN 40404 527 5 the the DT 40404 527 6 rock rock NN 40404 527 7 layers layer NNS 40404 527 8 in in IN 40404 527 9 which which WDT 40404 527 10 these these DT 40404 527 11 fragments fragment NNS 40404 527 12 were be VBD 40404 527 13 imbedded imbed VBN 40404 527 14 they -PRON- PRP 40404 527 15 are be VBP 40404 527 16 left leave VBN 40404 527 17 to to TO 40404 527 18 strew strew VB 40404 527 19 the the DT 40404 527 20 surface surface NN 40404 527 21 in in IN 40404 527 22 the the DT 40404 527 23 same same JJ 40404 527 24 way way NN 40404 527 25 as as IN 40404 527 26 are be VBP 40404 527 27 the the DT 40404 527 28 residual residual JJ 40404 527 29 flints flint NNS 40404 527 30 of of IN 40404 527 31 southern southern JJ 40404 527 32 Missouri Missouri NNP 40404 527 33 . . . 40404 527 34 ] ] -RRB- 40404 528 1 = = NFP 40404 528 2 Outliers Outliers NNPS 40404 528 3 and and CC 40404 528 4 monuments.= monuments.= NNP 40404 528 5 As as IN 40404 528 6 cliffs cliff NNS 40404 528 7 retreat retreat NN 40404 528 8 under under IN 40404 528 9 the the DT 40404 528 10 attack attack NN 40404 528 11 of of IN 40404 528 12 the the DT 40404 528 13 weather weather NN 40404 528 14 , , , 40404 528 15 portions portion NNS 40404 528 16 are be VBP 40404 528 17 left leave VBN 40404 528 18 behind behind RB 40404 528 19 where where WRB 40404 528 20 the the DT 40404 528 21 rock rock NN 40404 528 22 is be VBZ 40404 528 23 more more RBR 40404 528 24 resistant resistant JJ 40404 528 25 or or CC 40404 528 26 where where WRB 40404 528 27 the the DT 40404 528 28 attack attack NN 40404 528 29 for for IN 40404 528 30 any any DT 40404 528 31 reason reason NN 40404 528 32 is be VBZ 40404 528 33 less less RBR 40404 528 34 severe severe JJ 40404 528 35 . . . 40404 529 1 Such such JJ 40404 529 2 remnant remnant JJ 40404 529 3 masses masse NNS 40404 529 4 , , , 40404 529 5 if if IN 40404 529 6 large large JJ 40404 529 7 , , , 40404 529 8 are be VBP 40404 529 9 known know VBN 40404 529 10 as as IN 40404 529 11 outliers outlier NNS 40404 529 12 . . . 40404 530 1 When when WRB 40404 530 2 flat flat JJ 40404 530 3 - - HYPH 40404 530 4 topped top VBN 40404 530 5 , , , 40404 530 6 because because IN 40404 530 7 of of IN 40404 530 8 the the DT 40404 530 9 protection protection NN 40404 530 10 of of IN 40404 530 11 a a DT 40404 530 12 resistant resistant JJ 40404 530 13 horizontal horizontal JJ 40404 530 14 capping cap VBG 40404 530 15 layer layer NN 40404 530 16 , , , 40404 530 17 they -PRON- PRP 40404 530 18 are be VBP 40404 530 19 termed term VBN 40404 530 20 _ _ NNP 40404 530 21 mesas mesas NN 40404 530 22 _ _ NNP 40404 530 23 ( ( -LRB- 40404 530 24 Fig Fig NNP 40404 530 25 . . . 40404 531 1 16),--a 16),--a CD 40404 531 2 term term NN 40404 531 3 applied apply VBN 40404 531 4 also also RB 40404 531 5 to to IN 40404 531 6 the the DT 40404 531 7 flat flat RB 40404 531 8 - - HYPH 40404 531 9 topped top VBN 40404 531 10 portions portion NNS 40404 531 11 of of IN 40404 531 12 dissected dissect VBN 40404 531 13 plateaus plateaus NN 40404 531 14 ( ( -LRB- 40404 531 15 Fig fig NN 40404 531 16 . . . 40404 532 1 129 129 CD 40404 532 2 ) ) -RRB- 40404 532 3 . . . 40404 533 1 Retreating retreat VBG 40404 533 2 cliffs cliff NNS 40404 533 3 may may MD 40404 533 4 fall fall VB 40404 533 5 back back RB 40404 533 6 a a DT 40404 533 7 number number NN 40404 533 8 of of IN 40404 533 9 miles mile NNS 40404 533 10 behind behind IN 40404 533 11 their -PRON- PRP$ 40404 533 12 outliers outlier NNS 40404 533 13 before before IN 40404 533 14 the the DT 40404 533 15 latter latter JJ 40404 533 16 are be VBP 40404 533 17 finally finally RB 40404 533 18 consumed consume VBN 40404 533 19 . . . 40404 534 1 [ [ -LRB- 40404 534 2 Illustration illustration NN 40404 534 3 : : : 40404 534 4 Fig Fig NNP 40404 534 5 . . . 40404 535 1 18 18 CD 40404 535 2 . . . 40404 536 1 Undercut Undercut NNP 40404 536 2 Monuments Monuments NNPS 40404 536 3 , , , 40404 536 4 Colorado Colorado NNP 40404 536 5 ] ] -RRB- 40404 536 6 Monuments monument NNS 40404 536 7 are be VBP 40404 536 8 smaller small JJR 40404 536 9 masses masse NNS 40404 536 10 and and CC 40404 536 11 may may MD 40404 536 12 be be VB 40404 536 13 but but CC 40404 536 14 partially partially RB 40404 536 15 detached detach VBN 40404 536 16 from from IN 40404 536 17 the the DT 40404 536 18 cliff cliff NN 40404 536 19 face face NN 40404 536 20 . . . 40404 537 1 In in IN 40404 537 2 the the DT 40404 537 3 breaking breaking NN 40404 537 4 down down RP 40404 537 5 of of IN 40404 537 6 sheets sheet NNS 40404 537 7 of of IN 40404 537 8 horizontal horizontal JJ 40404 537 9 strata stratum NNS 40404 537 10 , , , 40404 537 11 outliers outlier NNS 40404 537 12 grow grow VBP 40404 537 13 smaller small JJR 40404 537 14 and and CC 40404 537 15 smaller small JJR 40404 537 16 and and CC 40404 537 17 are be VBP 40404 537 18 reduced reduce VBN 40404 537 19 to to IN 40404 537 20 massive massive JJ 40404 537 21 rectangular rectangular JJ 40404 537 22 monuments monument NNS 40404 537 23 resembling resemble VBG 40404 537 24 castles castle NNS 40404 537 25 ( ( -LRB- 40404 537 26 Fig fig NN 40404 537 27 . . . 40404 538 1 17 17 CD 40404 538 2 ) ) -RRB- 40404 538 3 . . . 40404 539 1 The the DT 40404 539 2 rock rock NN 40404 539 3 castle castle NN 40404 539 4 falls fall VBZ 40404 539 5 into into IN 40404 539 6 ruin ruin NN 40404 539 7 , , , 40404 539 8 leaving leave VBG 40404 539 9 here here RB 40404 539 10 and and CC 40404 539 11 there there RB 40404 539 12 an an DT 40404 539 13 isolated isolated JJ 40404 539 14 tower tower NN 40404 539 15 ; ; : 40404 539 16 the the DT 40404 539 17 tower tower NN 40404 539 18 crumbles crumble VBZ 40404 539 19 to to IN 40404 539 20 a a DT 40404 539 21 lonely lonely JJ 40404 539 22 pillar pillar NN 40404 539 23 , , , 40404 539 24 soon soon RB 40404 539 25 to to TO 40404 539 26 be be VB 40404 539 27 overthrown overthrow VBN 40404 539 28 . . . 40404 540 1 The the DT 40404 540 2 various various JJ 40404 540 3 and and CC 40404 540 4 often often RB 40404 540 5 picturesque picturesque JJ 40404 540 6 shapes shape NNS 40404 540 7 of of IN 40404 540 8 monuments monument NNS 40404 540 9 depend depend VBP 40404 540 10 on on IN 40404 540 11 the the DT 40404 540 12 kind kind NN 40404 540 13 of of IN 40404 540 14 rock rock NN 40404 540 15 , , , 40404 540 16 the the DT 40404 540 17 attitude attitude NN 40404 540 18 of of IN 40404 540 19 the the DT 40404 540 20 strata strata NN 40404 540 21 , , , 40404 540 22 and and CC 40404 540 23 the the DT 40404 540 24 agent agent NN 40404 540 25 by by IN 40404 540 26 which which WDT 40404 540 27 they -PRON- PRP 40404 540 28 are be VBP 40404 540 29 chiefly chiefly RB 40404 540 30 carved carve VBN 40404 540 31 . . . 40404 541 1 Thus thus RB 40404 541 2 pillars pillar NNS 40404 541 3 may may MD 40404 541 4 have have VB 40404 541 5 a a DT 40404 541 6 capital capital NN 40404 541 7 formed form VBN 40404 541 8 of of IN 40404 541 9 a a DT 40404 541 10 resistant resistant JJ 40404 541 11 stratum stratum NN 40404 541 12 . . . 40404 542 1 Monuments monument NNS 40404 542 2 may may MD 40404 542 3 be be VB 40404 542 4 undercut undercut JJ 40404 542 5 and and CC 40404 542 6 come come VB 40404 542 7 to to TO 40404 542 8 rest rest VB 40404 542 9 on on IN 40404 542 10 narrow narrow JJ 40404 542 11 pedestals pedestal NNS 40404 542 12 , , , 40404 542 13 wherever wherever WRB 40404 542 14 they -PRON- PRP 40404 542 15 weather weather VBP 40404 542 16 more more RBR 40404 542 17 rapidly rapidly RB 40404 542 18 near near IN 40404 542 19 the the DT 40404 542 20 ground ground NN 40404 542 21 , , , 40404 542 22 either either CC 40404 542 23 because because IN 40404 542 24 of of IN 40404 542 25 the the DT 40404 542 26 greater great JJR 40404 542 27 moisture moisture NN 40404 542 28 there there RB 40404 542 29 , , , 40404 542 30 or or CC 40404 542 31 -- -- : 40404 542 32 in in IN 40404 542 33 arid arid JJ 40404 542 34 climates climate NNS 40404 542 35 -- -- : 40404 542 36 because because IN 40404 542 37 worn wear VBN 40404 542 38 at at IN 40404 542 39 their -PRON- PRP$ 40404 542 40 base base NN 40404 542 41 by by IN 40404 542 42 drifting drift VBG 40404 542 43 sands sand NNS 40404 542 44 . . . 40404 543 1 Stony Stony NNP 40404 543 2 clays clay NNS 40404 543 3 disintegrating disintegrate VBG 40404 543 4 under under IN 40404 543 5 the the DT 40404 543 6 rain rain NN 40404 543 7 often often RB 40404 543 8 contain contain VBP 40404 543 9 bowlders bowlder NNS 40404 543 10 which which WDT 40404 543 11 protect protect VBP 40404 543 12 the the DT 40404 543 13 softer soft JJR 40404 543 14 material material NN 40404 543 15 beneath beneath IN 40404 543 16 from from IN 40404 543 17 the the DT 40404 543 18 vertical vertical JJ 40404 543 19 blows blow NNS 40404 543 20 of of IN 40404 543 21 raindrops raindrop NNS 40404 543 22 , , , 40404 543 23 and and CC 40404 543 24 thus thus RB 40404 543 25 come come VB 40404 543 26 to to TO 40404 543 27 stand stand VB 40404 543 28 on on IN 40404 543 29 pedestals pedestal NNS 40404 543 30 of of IN 40404 543 31 some some DT 40404 543 32 height height NN 40404 543 33 ( ( -LRB- 40404 543 34 Fig fig NN 40404 543 35 . . . 40404 544 1 19 19 CD 40404 544 2 ) ) -RRB- 40404 544 3 . . . 40404 545 1 One one CD 40404 545 2 may may MD 40404 545 3 sometimes sometimes RB 40404 545 4 see see VB 40404 545 5 on on IN 40404 545 6 the the DT 40404 545 7 ground ground NN 40404 545 8 beneath beneath IN 40404 545 9 dripping dripping JJ 40404 545 10 eaves eave NNS 40404 545 11 pebbles pebble NNS 40404 545 12 left leave VBN 40404 545 13 in in IN 40404 545 14 the the DT 40404 545 15 same same JJ 40404 545 16 way way NN 40404 545 17 , , , 40404 545 18 protecting protect VBG 40404 545 19 tiny tiny JJ 40404 545 20 pedestals pedestal NNS 40404 545 21 of of IN 40404 545 22 sand sand NN 40404 545 23 . . . 40404 546 1 = = NFP 40404 546 2 Mountain mountain NN 40404 546 3 peaks peak NNS 40404 546 4 and and CC 40404 546 5 ridges.= ridges.= NNS 40404 546 6 Most Most JJS 40404 546 7 mountains mountain NNS 40404 546 8 have have VBP 40404 546 9 been be VBN 40404 546 10 carved carve VBN 40404 546 11 out out IN 40404 546 12 of of IN 40404 546 13 great great JJ 40404 546 14 broadly broadly RB 40404 546 15 uplifted uplifted JJ 40404 546 16 folds fold NNS 40404 546 17 and and CC 40404 546 18 blocks block NNS 40404 546 19 of of IN 40404 546 20 the the DT 40404 546 21 earth earth NN 40404 546 22 's 's POS 40404 546 23 crust crust NN 40404 546 24 . . . 40404 547 1 Running run VBG 40404 547 2 water water NN 40404 547 3 and and CC 40404 547 4 glacier glacier NN 40404 547 5 ice ice NN 40404 547 6 have have VBP 40404 547 7 cut cut VBN 40404 547 8 these these DT 40404 547 9 folds fold NNS 40404 547 10 and and CC 40404 547 11 blocks block NNS 40404 547 12 into into IN 40404 547 13 masses masse NNS 40404 547 14 divided divide VBN 40404 547 15 by by IN 40404 547 16 deep deep JJ 40404 547 17 valleys valley NNS 40404 547 18 ; ; , 40404 547 19 but but CC 40404 547 20 it -PRON- PRP 40404 547 21 is be VBZ 40404 547 22 by by IN 40404 547 23 the the DT 40404 547 24 weather weather NN 40404 547 25 , , , 40404 547 26 for for IN 40404 547 27 the the DT 40404 547 28 most most JJS 40404 547 29 part part NN 40404 547 30 , , , 40404 547 31 that that IN 40404 547 32 the the DT 40404 547 33 masses masse NNS 40404 547 34 thus thus RB 40404 547 35 separated separate VBD 40404 547 36 have have VBP 40404 547 37 been be VBN 40404 547 38 sculptured sculpture VBN 40404 547 39 to to IN 40404 547 40 the the DT 40404 547 41 present present JJ 40404 547 42 forms form NNS 40404 547 43 of of IN 40404 547 44 the the DT 40404 547 45 individual individual JJ 40404 547 46 peaks peak NNS 40404 547 47 and and CC 40404 547 48 ridges ridge NNS 40404 547 49 . . . 40404 548 1 [ [ -LRB- 40404 548 2 Illustration illustration NN 40404 548 3 : : : 40404 548 4 Fig Fig NNP 40404 548 5 . . . 40404 549 1 19 19 CD 40404 549 2 . . . 40404 550 1 Roosevelt Roosevelt NNP 40404 550 2 Column Column NNP 40404 550 3 , , , 40404 550 4 Idaho Idaho NNP 40404 550 5 An an DT 40404 550 6 erosion erosion NN 40404 550 7 pillar pillar NN 40404 550 8 70 70 CD 40404 550 9 feet foot NNS 40404 550 10 high high JJ 40404 550 11 . . . 40404 551 1 How how WRB 40404 551 2 was be VBD 40404 551 3 it -PRON- PRP 40404 551 4 produced produce VBN 40404 551 5 ? ? . 40404 552 1 Why why WRB 40404 552 2 quadrangular quadrangular JJ 40404 552 3 ? ? . 40404 553 1 What what WP 40404 553 2 does do VBZ 40404 553 3 it -PRON- PRP 40404 553 4 show show VB 40404 553 5 as as IN 40404 553 6 to to IN 40404 553 7 the the DT 40404 553 8 recent recent JJ 40404 553 9 height height NN 40404 553 10 of of IN 40404 553 11 the the DT 40404 553 12 hillside hillside NN 40404 553 13 surface surface NN 40404 553 14 ? ? . 40404 553 15 ] ] -RRB- 40404 554 1 Frost Frost NNP 40404 554 2 and and CC 40404 554 3 heat heat NN 40404 554 4 and and CC 40404 554 5 cold cold JJ 40404 554 6 sculpture sculpture NN 40404 554 7 high high JJ 40404 554 8 mountains mountain NNS 40404 554 9 to to TO 40404 554 10 sharp sharp JJ 40404 554 11 , , , 40404 554 12 tusklike tusklike JJ 40404 554 13 peaks peak NNS 40404 554 14 and and CC 40404 554 15 ragged ragged JJ 40404 554 16 , , , 40404 554 17 serrate serrate JJ 40404 554 18 crests crest NNS 40404 554 19 , , , 40404 554 20 where where WRB 40404 554 21 their -PRON- PRP$ 40404 554 22 waste waste NN 40404 554 23 is be VBZ 40404 554 24 readily readily RB 40404 554 25 removed remove VBN 40404 554 26 ( ( -LRB- 40404 554 27 Fig fig NN 40404 554 28 . . . 40404 555 1 8) 8) CD 40404 555 2 . . . 40404 556 1 The the DT 40404 556 2 Matterhorn Matterhorn NNP 40404 556 3 of of IN 40404 556 4 the the DT 40404 556 5 Alps Alps NNPS 40404 556 6 is be VBZ 40404 556 7 a a DT 40404 556 8 famous famous JJ 40404 556 9 example example NN 40404 556 10 of of IN 40404 556 11 a a DT 40404 556 12 mountain mountain NN 40404 556 13 peak peak NN 40404 556 14 whose whose WP$ 40404 556 15 carving carving NN 40404 556 16 by by IN 40404 556 17 the the DT 40404 556 18 frost frost NN 40404 556 19 and and CC 40404 556 20 other other JJ 40404 556 21 agents agent NNS 40404 556 22 is be VBZ 40404 556 23 in in IN 40404 556 24 active active JJ 40404 556 25 progress progress NN 40404 556 26 . . . 40404 557 1 On on IN 40404 557 2 its -PRON- PRP$ 40404 557 3 face face NN 40404 557 4 " " `` 40404 557 5 scarcely scarcely RB 40404 557 6 a a DT 40404 557 7 rock rock NN 40404 557 8 anywhere anywhere RB 40404 557 9 is be VBZ 40404 557 10 firmly firmly RB 40404 557 11 attached attach VBN 40404 557 12 , , , 40404 557 13 " " `` 40404 557 14 and and CC 40404 557 15 the the DT 40404 557 16 fall fall NN 40404 557 17 of of IN 40404 557 18 loosened loosened JJ 40404 557 19 stones stone NNS 40404 557 20 is be VBZ 40404 557 21 incessant incessant JJ 40404 557 22 . . . 40404 558 1 Mountain mountain NN 40404 558 2 climbers climber NNS 40404 558 3 who who WP 40404 558 4 have have VBP 40404 558 5 camped camp VBN 40404 558 6 at at IN 40404 558 7 its -PRON- PRP$ 40404 558 8 base base NN 40404 558 9 tell tell VB 40404 558 10 how how WRB 40404 558 11 huge huge JJ 40404 558 12 rocks rock NNS 40404 558 13 from from IN 40404 558 14 time time NN 40404 558 15 to to IN 40404 558 16 time time NN 40404 558 17 come come VB 40404 558 18 leaping leap VBG 40404 558 19 down down RP 40404 558 20 its -PRON- PRP$ 40404 558 21 precipices precipice NNS 40404 558 22 , , , 40404 558 23 followed follow VBN 40404 558 24 by by IN 40404 558 25 trains train NNS 40404 558 26 of of IN 40404 558 27 dislodged dislodged JJ 40404 558 28 smaller small JJR 40404 558 29 fragments fragment NNS 40404 558 30 and and CC 40404 558 31 rock rock NN 40404 558 32 dust dust NN 40404 558 33 ; ; : 40404 558 34 and and CC 40404 558 35 how how WRB 40404 558 36 at at IN 40404 558 37 night night NN 40404 558 38 one one CD 40404 558 39 may may MD 40404 558 40 trace trace VB 40404 558 41 the the DT 40404 558 42 course course NN 40404 558 43 of of IN 40404 558 44 the the DT 40404 558 45 bowlders bowlder NNS 40404 558 46 by by IN 40404 558 47 the the DT 40404 558 48 sparks spark NNS 40404 558 49 which which WDT 40404 558 50 they -PRON- PRP 40404 558 51 strike strike VBP 40404 558 52 from from IN 40404 558 53 the the DT 40404 558 54 mountain mountain NN 40404 558 55 walls wall NNS 40404 558 56 . . . 40404 559 1 Mount Mount NNP 40404 559 2 Assiniboine Assiniboine NNP 40404 559 3 , , , 40404 559 4 Canada Canada NNP 40404 559 5 ( ( -LRB- 40404 559 6 Fig Fig NNP 40404 559 7 . . . 40404 560 1 20 20 CD 40404 560 2 ) ) -RRB- 40404 560 3 , , , 40404 560 4 resembles resemble VBZ 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decay decay NN 40404 562 3 , , , 40404 562 4 especially especially RB 40404 562 5 when when WRB 40404 562 6 carried carry VBN 40404 562 7 on on IN 40404 562 8 beneath beneath IN 40404 562 9 a a DT 40404 562 10 cover cover NN 40404 562 11 of of IN 40404 562 12 waste waste NN 40404 562 13 and and CC 40404 562 14 vegetation vegetation NN 40404 562 15 , , , 40404 562 16 favors favor VBZ 40404 562 17 the the DT 40404 562 18 production production NN 40404 562 19 of of IN 40404 562 20 rounded rounded JJ 40404 562 21 knobs knob NNS 40404 562 22 and and CC 40404 562 23 dome dome NN 40404 562 24 - - HYPH 40404 562 25 shaped shape VBN 40404 562 26 mountains mountain NNS 40404 562 27 . . . 40404 563 1 = = NFP 40404 563 2 The the DT 40404 563 3 weather weather NN 40404 563 4 curve.= curve.= NN 40404 563 5 We -PRON- PRP 40404 563 6 have have VBP 40404 563 7 seen see VBN 40404 563 8 that that IN 40404 563 9 weathering weather VBG 40404 563 10 reduces reduce VBZ 40404 563 11 the the DT 40404 563 12 angular angular JJ 40404 563 13 block block NN 40404 563 14 quarried quarry VBN 40404 563 15 by by IN 40404 563 16 the the DT 40404 563 17 frost frost NN 40404 563 18 to to IN 40404 563 19 a a DT 40404 563 20 rounded rounded JJ 40404 563 21 bowlder bowlder NN 40404 563 22 by by IN 40404 563 23 chipping chip VBG 40404 563 24 off off RP 40404 563 25 its -PRON- PRP$ 40404 563 26 corners corner NNS 40404 563 27 and and CC 40404 563 28 smoothing smooth VBG 40404 563 29 away away RB 40404 563 30 its -PRON- PRP$ 40404 563 31 edges edge NNS 40404 563 32 . . . 40404 564 1 In in IN 40404 564 2 much much RB 40404 564 3 the the DT 40404 564 4 same same JJ 40404 564 5 way way NN 40404 564 6 weathering weather VBG 40404 564 7 at at IN 40404 564 8 last last JJ 40404 564 9 reduces reduce NNS 40404 564 10 to to IN 40404 564 11 rounded round VBD 40404 564 12 hills hill NNS 40404 564 13 the the DT 40404 564 14 earth earth NN 40404 564 15 blocks block NNS 40404 564 16 cut cut VBN 40404 564 17 by by IN 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rounded rounded JJ 40404 566 17 hills hill NNS 40404 566 18 ( ( -LRB- 40404 566 19 Fig fig NN 40404 566 20 . . . 40404 567 1 182 182 CD 40404 567 2 ) ) -RRB- 40404 567 3 . . . 40404 568 1 The the DT 40404 568 2 weather weather NN 40404 568 3 curve curve NN 40404 568 4 , , , 40404 568 5 which which WDT 40404 568 6 may may MD 40404 568 7 be be VB 40404 568 8 seen see VBN 40404 568 9 on on IN 40404 568 10 the the DT 40404 568 11 summits summit NNS 40404 568 12 of of IN 40404 568 13 low low JJ 40404 568 14 hills hill NNS 40404 568 15 ( ( -LRB- 40404 568 16 Fig fig NN 40404 568 17 . . . 40404 569 1 21 21 CD 40404 569 2 ) ) -RRB- 40404 569 3 , , , 40404 569 4 is be VBZ 40404 569 5 convex convex NNP 40404 569 6 upward upward RB 40404 569 7 . . . 40404 570 1 [ [ -LRB- 40404 570 2 Illustration illustration NN 40404 570 3 : : : 40404 570 4 Fig Fig NNP 40404 570 5 . . . 40404 571 1 20 20 CD 40404 571 2 . . . 40404 572 1 Mount Mount NNP 40404 572 2 Assiniboine Assiniboine NNP 40404 572 3 , , , 40404 572 4 Canada Canada NNP 40404 572 5 ] ] -RRB- 40404 572 6 [ [ -LRB- 40404 572 7 Illustration illustration NN 40404 572 8 : : : 40404 572 9 Fig Fig NNP 40404 572 10 . . . 40404 573 1 21 21 CD 40404 573 2 . . . 40404 574 1 Big big JJ 40404 574 2 Round Round NNP 40404 574 3 Top Top NNP 40404 574 4 and and CC 40404 574 5 Little little JJ 40404 574 6 Round Round NNP 40404 574 7 Top Top NNP 40404 574 8 , , , 40404 574 9 Gettysburg Gettysburg NNP 40404 574 10 , , , 40404 574 11 Pennsylvania Pennsylvania NNP 40404 574 12 ] ] -RRB- 40404 574 13 In in IN 40404 574 14 Figure Figure NNP 40404 574 15 22 22 CD 40404 574 16 , , , 40404 574 17 representing represent VBG 40404 574 18 a a DT 40404 574 19 cubic cubic JJ 40404 574 20 block block NN 40404 574 21 of of IN 40404 574 22 stone stone NN 40404 574 23 whose whose WP$ 40404 574 24 faces face NNS 40404 574 25 are be VBP 40404 574 26 a a DT 40404 574 27 yard yard NN 40404 574 28 square square NN 40404 574 29 , , , 40404 574 30 how how WRB 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must MD 40404 579 21 be be VB 40404 579 22 rapidly rapidly RB 40404 579 23 removed,--a removed,--a NNPS 40404 579 24 work work NN 40404 579 25 done do VBN 40404 579 26 by by IN 40404 579 27 many many JJ 40404 579 28 agents agent NNS 40404 579 29 , , , 40404 579 30 including include VBG 40404 579 31 some some DT 40404 579 32 which which WDT 40404 579 33 we -PRON- PRP 40404 579 34 are be VBP 40404 579 35 yet yet RB 40404 579 36 to to TO 40404 579 37 study study VB 40404 579 38 ; ; : 40404 579 39 and and CC 40404 579 40 in in IN 40404 579 41 order order NN 40404 579 42 that that IN 40404 579 43 the the DT 40404 579 44 waste waste NN 40404 579 45 may may MD 40404 579 46 be be VB 40404 579 47 removed remove VBN 40404 579 48 as as RB 40404 579 49 fast fast RB 40404 579 50 as as IN 40404 579 51 formed form VBN 40404 579 52 , , , 40404 579 53 the the DT 40404 579 54 region region NN 40404 579 55 must must MD 40404 579 56 first first RB 40404 579 57 have have VB 40404 579 58 been be VBN 40404 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584 5 land land NN 40404 584 6 is be VBZ 40404 584 7 going go VBG 40404 584 8 on on RP 40404 584 9 as as RB 40404 584 10 fast fast RB 40404 584 11 as as IN 40404 584 12 the the DT 40404 584 13 waste waste NN 40404 584 14 can can MD 40404 584 15 be be VB 40404 584 16 carried carry VBN 40404 584 17 away away RB 40404 584 18 . . . 40404 585 1 We -PRON- PRP 40404 585 2 have have VBP 40404 585 3 now now RB 40404 585 4 learned learn VBN 40404 585 5 to to TO 40404 585 6 see see VB 40404 585 7 in in IN 40404 585 8 the the DT 40404 585 9 mantle mantle NN 40404 585 10 of of IN 40404 585 11 waste waste VB 40404 585 12 the the DT 40404 585 13 record record NN 40404 585 14 of of IN 40404 585 15 the the DT 40404 585 16 destructive destructive JJ 40404 585 17 action action NN 40404 585 18 of of IN 40404 585 19 the the DT 40404 585 20 agencies agency NNS 40404 585 21 of of IN 40404 585 22 weathering weather VBG 40404 585 23 on on IN 40404 585 24 the the DT 40404 585 25 rocks rock NNS 40404 585 26 of of IN 40404 585 27 the the DT 40404 585 28 land land NN 40404 585 29 surface surface NN 40404 585 30 . . . 40404 586 1 Similar similar JJ 40404 586 2 records record NNS 40404 586 3 we -PRON- PRP 40404 586 4 shall shall MD 40404 586 5 find find VB 40404 586 6 buried bury VBN 40404 586 7 deeply deeply RB 40404 586 8 among among IN 40404 586 9 the the DT 40404 586 10 rocks rock NNS 40404 586 11 of of IN 40404 586 12 the the DT 40404 586 13 crust crust NN 40404 586 14 in in IN 40404 586 15 old old JJ 40404 586 16 soils soil NNS 40404 586 17 and and CC 40404 586 18 in in IN 40404 586 19 rocks rock NNS 40404 586 20 pitted pit VBN 40404 586 21 and and CC 40404 586 22 decayed decay VBN 40404 586 23 , , , 40404 586 24 telling tell VBG 40404 586 25 of of IN 40404 586 26 old old JJ 40404 586 27 land land NN 40404 586 28 surfaces surface NNS 40404 586 29 long long RB 40404 586 30 wasted waste VBN 40404 586 31 by by IN 40404 586 32 the the DT 40404 586 33 weather weather NN 40404 586 34 . . . 40404 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surface surface NN 40404 595 13 as as IN 40404 595 14 monuments monument NNS 40404 595 15 which which WDT 40404 595 16 record record VBP 40404 595 17 the the DT 40404 595 18 slow slow JJ 40404 595 19 action action NN 40404 595 20 of of IN 40404 595 21 weathering weathering NN 40404 595 22 and and CC 40404 595 23 other other JJ 40404 595 24 agents agent NNS 40404 595 25 during during IN 40404 595 26 the the DT 40404 595 27 ages age NNS 40404 595 28 of of IN 40404 595 29 the the DT 40404 595 30 past past NN 40404 595 31 . . . 40404 596 1 The the DT 40404 596 2 mountain mountain NN 40404 596 3 peak peak NN 40404 596 4 , , , 40404 596 5 the the DT 40404 596 6 rounded rounded NNP 40404 596 7 hill hill NNP 40404 596 8 , , , 40404 596 9 the the DT 40404 596 10 wide wide JJ 40404 596 11 plain plain NN 40404 596 12 which which WDT 40404 596 13 lies lie VBZ 40404 596 14 where where WRB 40404 596 15 hills hill NNS 40404 596 16 and and CC 40404 596 17 mountains mountain NNS 40404 596 18 once once RB 40404 596 19 stood stand VBD 40404 596 20 , , , 40404 596 21 tell tell VB 40404 596 22 clearly clearly RB 40404 596 23 of of IN 40404 596 24 the the DT 40404 596 25 great great JJ 40404 596 26 results result NNS 40404 596 27 which which WDT 40404 596 28 slow slow JJ 40404 596 29 processes process NNS 40404 596 30 will will MD 40404 596 31 reach reach VB 40404 596 32 when when WRB 40404 596 33 given give VBN 40404 596 34 long long JJ 40404 596 35 time time NN 40404 596 36 in in IN 40404 596 37 which which WDT 40404 596 38 to to TO 40404 596 39 do do VB 40404 596 40 their -PRON- PRP$ 40404 596 41 work work NN 40404 596 42 . . . 40404 597 1 We -PRON- PRP 40404 597 2 should should MD 40404 597 3 accustom accustom VB 40404 597 4 ourselves -PRON- PRP 40404 597 5 also also RB 40404 597 6 to to TO 40404 597 7 think think VB 40404 597 8 of of IN 40404 597 9 the the DT 40404 597 10 results result NNS 40404 597 11 which which WDT 40404 597 12 weathering weather VBG 40404 597 13 will will MD 40404 597 14 sooner sooner RB 40404 597 15 or or CC 40404 597 16 later later RB 40404 597 17 bring bring VB 40404 597 18 to to TO 40404 597 19 pass pass VB 40404 597 20 . . . 40404 598 1 The the DT 40404 598 2 tombstone tombstone NN 40404 598 3 and and CC 40404 598 4 the the DT 40404 598 5 bowlder bowlder NN 40404 598 6 of of IN 40404 598 7 the the DT 40404 598 8 field field NN 40404 598 9 , , , 40404 598 10 which which WDT 40404 598 11 each each DT 40404 598 12 year year NN 40404 598 13 lose lose VBP 40404 598 14 from from IN 40404 598 15 their -PRON- PRP$ 40404 598 16 surfaces surface NNS 40404 598 17 a a DT 40404 598 18 few few JJ 40404 598 19 crystalline crystalline JJ 40404 598 20 grains grain NNS 40404 598 21 , , , 40404 598 22 must must MD 40404 598 23 in in IN 40404 598 24 time time NN 40404 598 25 be be VB 40404 598 26 wholly wholly RB 40404 598 27 destroyed destroy VBN 40404 598 28 . . . 40404 599 1 The the DT 40404 599 2 hill hill NN 40404 599 3 whose whose WP$ 40404 599 4 rocks rock NNS 40404 599 5 are be VBP 40404 599 6 slowly slowly RB 40404 599 7 rotting rot VBG 40404 599 8 underneath underneath IN 40404 599 9 a a DT 40404 599 10 cover cover NN 40404 599 11 of of IN 40404 599 12 waste waste NN 40404 599 13 must must MD 40404 599 14 become become VB 40404 599 15 lower low JJR 40404 599 16 and and CC 40404 599 17 lower low JJR 40404 599 18 as as IN 40404 599 19 the the DT 40404 599 20 centuries century NNS 40404 599 21 and and CC 40404 599 22 millenniums millennium NNS 40404 599 23 come come VB 40404 599 24 and and CC 40404 599 25 go go VB 40404 599 26 , , , 40404 599 27 and and CC 40404 599 28 will will MD 40404 599 29 finally finally RB 40404 599 30 disappear disappear VB 40404 599 31 . . . 40404 600 1 Even even RB 40404 600 2 the the DT 40404 600 3 mountains mountain NNS 40404 600 4 are be VBP 40404 600 5 crumbling crumble VBG 40404 600 6 away away RB 40404 600 7 continually continually RB 40404 600 8 , , , 40404 600 9 and and CC 40404 600 10 therefore therefore RB 40404 600 11 are be VBP 40404 600 12 but but CC 40404 600 13 fleeting fleeting JJ 40404 600 14 features feature NNS 40404 600 15 of of IN 40404 600 16 the the DT 40404 600 17 landscape landscape NN 40404 600 18 . . . 40404 601 1 CHAPTER CHAPTER NNP 40404 601 2 II II NNP 40404 601 3 THE the DT 40404 601 4 WORK work NN 40404 601 5 OF of IN 40404 601 6 GROUND GROUND NNP 40404 601 7 WATER WATER NNP 40404 601 8 = = SYM 40404 601 9 Land Land NNP 40404 601 10 waters.= waters.= NNP 40404 601 11 We -PRON- PRP 40404 601 12 have have VBP 40404 601 13 seen see VBN 40404 601 14 how how WRB 40404 601 15 large large JJ 40404 601 16 is be VBZ 40404 601 17 the the DT 40404 601 18 part part NN 40404 601 19 that that WDT 40404 601 20 water water NN 40404 601 21 plays play VBZ 40404 601 22 at at IN 40404 601 23 and and CC 40404 601 24 near near IN 40404 601 25 the the DT 40404 601 26 surface surface NN 40404 601 27 of of IN 40404 601 28 the the DT 40404 601 29 land land NN 40404 601 30 in in IN 40404 601 31 the the DT 40404 601 32 processes process NNS 40404 601 33 of of IN 40404 601 34 weathering weathering NN 40404 601 35 and and CC 40404 601 36 in in IN 40404 601 37 the the DT 40404 601 38 slow slow JJ 40404 601 39 movement movement NN 40404 601 40 of of IN 40404 601 41 waste waste NN 40404 601 42 down down RP 40404 601 43 all all DT 40404 601 44 slopes slope NNS 40404 601 45 to to IN 40404 601 46 the the DT 40404 601 47 stream stream NN 40404 601 48 ways way NNS 40404 601 49 . . . 40404 602 1 We -PRON- PRP 40404 602 2 now now RB 40404 602 3 take take VBP 40404 602 4 up up RP 40404 602 5 the the DT 40404 602 6 work work NN 40404 602 7 of of IN 40404 602 8 water water NN 40404 602 9 as as IN 40404 602 10 it -PRON- PRP 40404 602 11 descends descend VBZ 40404 602 12 beneath beneath IN 40404 602 13 the the DT 40404 602 14 ground,--a ground,--a NNP 40404 602 15 corrosive corrosive JJ 40404 602 16 agent agent NN 40404 602 17 still still RB 40404 602 18 , , , 40404 602 19 and and CC 40404 602 20 carrying carry VBG 40404 602 21 in in IN 40404 602 22 solution solution NN 40404 602 23 as as IN 40404 602 24 its -PRON- PRP$ 40404 602 25 load load NN 40404 602 26 the the DT 40404 602 27 invisible invisible JJ 40404 602 28 waste waste NN 40404 602 29 of of IN 40404 602 30 rocks rock NNS 40404 602 31 derived derive VBN 40404 602 32 from from IN 40404 602 33 their -PRON- PRP$ 40404 602 34 soluble soluble JJ 40404 602 35 parts part NNS 40404 602 36 . . . 40404 603 1 Land land NN 40404 603 2 waters water NNS 40404 603 3 have have VBP 40404 603 4 their -PRON- PRP$ 40404 603 5 immediate immediate JJ 40404 603 6 source source NN 40404 603 7 in in IN 40404 603 8 the the DT 40404 603 9 rainfall rainfall NN 40404 603 10 . . . 40404 604 1 By by IN 40404 604 2 the the DT 40404 604 3 heat heat NN 40404 604 4 of of IN 40404 604 5 the the DT 40404 604 6 sun sun NN 40404 604 7 water water NN 40404 604 8 is be VBZ 40404 604 9 evaporated evaporate VBN 40404 604 10 from from IN 40404 604 11 the the DT 40404 604 12 reservoir reservoir NN 40404 604 13 of of IN 40404 604 14 the the DT 40404 604 15 ocean ocean NN 40404 604 16 and and CC 40404 604 17 from from IN 40404 604 18 moist moist JJ 40404 604 19 surfaces surface NNS 40404 604 20 everywhere everywhere RB 40404 604 21 . . . 40404 605 1 Mingled mingle VBN 40404 605 2 as as IN 40404 605 3 vapor vapor NN 40404 605 4 with with IN 40404 605 5 the the DT 40404 605 6 air air NN 40404 605 7 , , , 40404 605 8 it -PRON- PRP 40404 605 9 is be VBZ 40404 605 10 carried carry VBN 40404 605 11 by by IN 40404 605 12 the the DT 40404 605 13 winds wind NNS 40404 605 14 over over IN 40404 605 15 sea sea NN 40404 605 16 and and CC 40404 605 17 land land NN 40404 605 18 , , , 40404 605 19 and and CC 40404 605 20 condensed condense VBD 40404 605 21 it -PRON- PRP 40404 605 22 returns return VBZ 40404 605 23 to to IN 40404 605 24 the the DT 40404 605 25 earth earth NN 40404 605 26 as as IN 40404 605 27 rain rain NN 40404 605 28 or or CC 40404 605 29 snow snow NN 40404 605 30 . . . 40404 606 1 That that DT 40404 606 2 part part NN 40404 606 3 of of IN 40404 606 4 the the DT 40404 606 5 rainfall rainfall NN 40404 606 6 which which WDT 40404 606 7 descends descend VBZ 40404 606 8 on on IN 40404 606 9 the the DT 40404 606 10 ocean ocean NN 40404 606 11 does do VBZ 40404 606 12 not not RB 40404 606 13 concern concern VB 40404 606 14 us -PRON- PRP 40404 606 15 , , , 40404 606 16 but but CC 40404 606 17 that that DT 40404 606 18 which which WDT 40404 606 19 falls fall VBZ 40404 606 20 on on IN 40404 606 21 the the DT 40404 606 22 land land NN 40404 606 23 accomplishes accomplishe NNS 40404 606 24 , , , 40404 606 25 as as IN 40404 606 26 it -PRON- PRP 40404 606 27 returns return VBZ 40404 606 28 to to IN 40404 606 29 the the DT 40404 606 30 sea sea NN 40404 606 31 , , , 40404 606 32 the the DT 40404 606 33 most most RBS 40404 606 34 important important JJ 40404 606 35 work work NN 40404 606 36 of of IN 40404 606 37 all all DT 40404 606 38 surface surface NN 40404 606 39 geological geological JJ 40404 606 40 agencies agency NNS 40404 606 41 . . . 40404 607 1 The the DT 40404 607 2 rainfall rainfall NN 40404 607 3 may may MD 40404 607 4 be be VB 40404 607 5 divided divide VBN 40404 607 6 into into IN 40404 607 7 three three CD 40404 607 8 parts part NNS 40404 607 9 : : : 40404 607 10 the the DT 40404 607 11 first first JJ 40404 607 12 _ _ NNP 40404 607 13 dries dry VBZ 40404 607 14 up up RP 40404 607 15 _ _ NNP 40404 607 16 , , , 40404 607 17 being be VBG 40404 607 18 discharged discharge VBN 40404 607 19 into into IN 40404 607 20 the the DT 40404 607 21 air air NN 40404 607 22 by by IN 40404 607 23 evaporation evaporation NN 40404 607 24 either either CC 40404 607 25 directly directly RB 40404 607 26 from from IN 40404 607 27 the the DT 40404 607 28 soil soil NN 40404 607 29 or or CC 40404 607 30 through through IN 40404 607 31 vegetation vegetation NN 40404 607 32 ; ; : 40404 607 33 the the DT 40404 607 34 second second JJ 40404 607 35 _ _ NNP 40404 607 36 runs run VBZ 40404 607 37 off off IN 40404 607 38 _ _ NNP 40404 607 39 over over IN 40404 607 40 the the DT 40404 607 41 surface surface NN 40404 607 42 to to TO 40404 607 43 flood flood VB 40404 607 44 the the DT 40404 607 45 streams stream NNS 40404 607 46 ; ; : 40404 607 47 the the DT 40404 607 48 third third JJ 40404 607 49 _ _ NNP 40404 607 50 soaks soak VBZ 40404 607 51 in in IN 40404 607 52 _ _ NNP 40404 607 53 the the DT 40404 607 54 ground ground NN 40404 607 55 and and CC 40404 607 56 is be VBZ 40404 607 57 henceforth henceforth RB 40404 607 58 known know VBN 40404 607 59 as as IN 40404 607 60 _ _ NNP 40404 607 61 ground ground NN 40404 607 62 _ _ NNP 40404 607 63 or or CC 40404 607 64 _ _ NNP 40404 607 65 underground underground JJ 40404 607 66 water water NN 40404 607 67 _ _ NNP 40404 607 68 . . . 40404 608 1 = = NFP 40404 608 2 The the DT 40404 608 3 descent descent NN 40404 608 4 of of IN 40404 608 5 ground ground NN 40404 608 6 water.= water.= NNP 40404 608 7 Seeping seep VBG 40404 608 8 through through IN 40404 608 9 the the DT 40404 608 10 mantle mantle NN 40404 608 11 of of IN 40404 608 12 waste waste NNP 40404 608 13 , , , 40404 608 14 ground ground NN 40404 608 15 water water NN 40404 608 16 soaks soak VBZ 40404 608 17 into into IN 40404 608 18 the the DT 40404 608 19 pores pore NNS 40404 608 20 and and CC 40404 608 21 crevices crevice NNS 40404 608 22 of of IN 40404 608 23 the the DT 40404 608 24 underlying underlying JJ 40404 608 25 rock rock NN 40404 608 26 . . . 40404 609 1 All all DT 40404 609 2 rocks rock NNS 40404 609 3 of of IN 40404 609 4 the the DT 40404 609 5 upper upper JJ 40404 609 6 crust crust NN 40404 609 7 of of IN 40404 609 8 the the DT 40404 609 9 earth earth NN 40404 609 10 are be VBP 40404 609 11 more more RBR 40404 609 12 or or CC 40404 609 13 less less RBR 40404 609 14 porous porous JJ 40404 609 15 , , , 40404 609 16 and and CC 40404 609 17 all all DT 40404 609 18 drink drink VBP 40404 609 19 in in IN 40404 609 20 water water NN 40404 609 21 . . . 40404 610 1 _ _ NNP 40404 610 2 Impervious impervious JJ 40404 610 3 rocks rock NNS 40404 610 4 _ _ NNP 40404 610 5 , , , 40404 610 6 such such JJ 40404 610 7 as as IN 40404 610 8 granite granite NN 40404 610 9 , , , 40404 610 10 clay clay NN 40404 610 11 , , , 40404 610 12 and and CC 40404 610 13 shale shale NNP 40404 610 14 , , , 40404 610 15 have have VBP 40404 610 16 pores pore NNS 40404 610 17 so so RB 40404 610 18 minute minute JJ 40404 610 19 that that IN 40404 610 20 the the DT 40404 610 21 water water NN 40404 610 22 which which WDT 40404 610 23 they -PRON- PRP 40404 610 24 take take VBP 40404 610 25 in in RP 40404 610 26 is be VBZ 40404 610 27 held hold VBN 40404 610 28 fast fast RB 40404 610 29 within within IN 40404 610 30 them -PRON- PRP 40404 610 31 by by IN 40404 610 32 capillary capillary JJ 40404 610 33 attraction attraction NN 40404 610 34 , , , 40404 610 35 and and CC 40404 610 36 none none NN 40404 610 37 drains drain VBZ 40404 610 38 through through RP 40404 610 39 . . . 40404 611 1 _ _ NNP 40404 611 2 Pervious pervious JJ 40404 611 3 rocks rock NNS 40404 611 4 _ _ NNP 40404 611 5 , , , 40404 611 6 on on IN 40404 611 7 the the DT 40404 611 8 other other JJ 40404 611 9 hand hand NN 40404 611 10 , , , 40404 611 11 such such JJ 40404 611 12 as as IN 40404 611 13 many many JJ 40404 611 14 sandstones sandstone NNS 40404 611 15 , , , 40404 611 16 have have VBP 40404 611 17 pore pore NN 40404 611 18 spaces space NNS 40404 611 19 so so RB 40404 611 20 large large JJ 40404 611 21 that that IN 40404 611 22 water water NN 40404 611 23 filters filter NNS 40404 611 24 through through IN 40404 611 25 them -PRON- PRP 40404 611 26 more more RBR 40404 611 27 or or CC 40404 611 28 less less RBR 40404 611 29 freely freely RB 40404 611 30 . . . 40404 612 1 Besides besides IN 40404 612 2 its -PRON- PRP$ 40404 612 3 seepage seepage NN 40404 612 4 through through IN 40404 612 5 the the DT 40404 612 6 pores pore NNS 40404 612 7 of of IN 40404 612 8 pervious pervious JJ 40404 612 9 rocks rock NNS 40404 612 10 , , , 40404 612 11 water water NN 40404 612 12 passes pass VBZ 40404 612 13 to to IN 40404 612 14 lower low JJR 40404 612 15 levels level NNS 40404 612 16 through through IN 40404 612 17 the the DT 40404 612 18 joints joint NNS 40404 612 19 and and CC 40404 612 20 cracks crack NNS 40404 612 21 by by IN 40404 612 22 which which WDT 40404 612 23 all all DT 40404 612 24 rocks rock NNS 40404 612 25 , , , 40404 612 26 near near IN 40404 612 27 the the DT 40404 612 28 surface surface NN 40404 612 29 are be VBP 40404 612 30 broken break VBN 40404 612 31 . . . 40404 613 1 Even even RB 40404 613 2 the the DT 40404 613 3 closest close RBS 40404 613 4 - - HYPH 40404 613 5 grained grain VBN 40404 613 6 granite granite NN 40404 613 7 has have VBZ 40404 613 8 a a DT 40404 613 9 pore pore NN 40404 613 10 space space NN 40404 613 11 of of IN 40404 613 12 1 1 CD 40404 613 13 in in IN 40404 613 14 400 400 CD 40404 613 15 , , , 40404 613 16 while while IN 40404 613 17 sandstone sandstone NN 40404 613 18 may may MD 40404 613 19 have have VB 40404 613 20 a a DT 40404 613 21 pore pore NN 40404 613 22 space space NN 40404 613 23 of of IN 40404 613 24 1 1 CD 40404 613 25 in in IN 40404 613 26 4 4 CD 40404 613 27 . . . 40404 614 1 Sand sand NN 40404 614 2 is be VBZ 40404 614 3 so so RB 40404 614 4 porous porous JJ 40404 614 5 that that IN 40404 614 6 it -PRON- PRP 40404 614 7 may may MD 40404 614 8 absorb absorb VB 40404 614 9 a a DT 40404 614 10 third third NN 40404 614 11 of of IN 40404 614 12 its -PRON- PRP$ 40404 614 13 volume volume NN 40404 614 14 of of IN 40404 614 15 water water NN 40404 614 16 , , , 40404 614 17 and and CC 40404 614 18 a a DT 40404 614 19 loose loose JJ 40404 614 20 loam loam NN 40404 614 21 even even RB 40404 614 22 as as RB 40404 614 23 much much JJ 40404 614 24 as as IN 40404 614 25 one one CD 40404 614 26 half half NN 40404 614 27 . . . 40404 615 1 [ [ -LRB- 40404 615 2 Illustration illustration NN 40404 615 3 : : : 40404 615 4 Fig Fig NNP 40404 615 5 . . . 40404 616 1 24 24 CD 40404 616 2 . . . 40404 617 1 Diagram Diagram NNP 40404 617 2 Illustrating Illustrating NNP 40404 617 3 the the DT 40404 617 4 Relation Relation NNP 40404 617 5 of of IN 40404 617 6 the the DT 40404 617 7 Ground Ground NNP 40404 617 8 - - HYPH 40404 617 9 Water Water NNP 40404 617 10 Surface Surface NNP 40404 617 11 to to IN 40404 617 12 the the DT 40404 617 13 Surface Surface NNP 40404 617 14 of of IN 40404 617 15 the the DT 40404 617 16 Ground ground NN 40404 617 17 The the DT 40404 617 18 dotted dotted JJ 40404 617 19 line line NN 40404 617 20 represents represent VBZ 40404 617 21 the the DT 40404 617 22 ground ground NN 40404 617 23 - - HYPH 40404 617 24 water water NN 40404 617 25 surface surface NN 40404 617 26 , , , 40404 617 27 and and CC 40404 617 28 the the DT 40404 617 29 arrows arrow NNS 40404 617 30 indicate indicate VBP 40404 617 31 the the DT 40404 617 32 direction direction NN 40404 617 33 of of IN 40404 617 34 the the DT 40404 617 35 movements movement NNS 40404 617 36 of of IN 40404 617 37 ground ground NN 40404 617 38 - - HYPH 40404 617 39 water water NN 40404 617 40 . . . 40404 618 1 _ _ NNP 40404 618 2 m m NNP 40404 618 3 _ _ NNP 40404 618 4 , , , 40404 618 5 marsh marsh NNP 40404 618 6 ; ; : 40404 618 7 _ _ NNP 40404 618 8 w w NNP 40404 618 9 _ _ NNP 40404 618 10 , , , 40404 618 11 well well UH 40404 618 12 ; ; : 40404 618 13 _ _ NNP 40404 618 14 r r NNP 40404 618 15 _ _ NNP 40404 618 16 , , , 40404 618 17 river river NN 40404 618 18 ] ] -RRB- 40404 618 19 = = NFP 40404 618 20 The the DT 40404 618 21 ground ground NN 40404 618 22 - - HYPH 40404 618 23 water water NN 40404 618 24 surface= surface= NN 40404 618 25 is be VBZ 40404 618 26 the the DT 40404 618 27 name name NN 40404 618 28 given give VBN 40404 618 29 the the DT 40404 618 30 upper upper JJ 40404 618 31 surface surface NN 40404 618 32 of of IN 40404 618 33 ground ground NN 40404 618 34 water water NN 40404 618 35 , , , 40404 618 36 the the DT 40404 618 37 level level NN 40404 618 38 below below IN 40404 618 39 which which WDT 40404 618 40 all all DT 40404 618 41 rocks rock NNS 40404 618 42 are be VBP 40404 618 43 saturated saturate VBN 40404 618 44 . . . 40404 619 1 In in IN 40404 619 2 dry dry JJ 40404 619 3 seasons season NNS 40404 619 4 the the DT 40404 619 5 ground ground NN 40404 619 6 - - HYPH 40404 619 7 water water NN 40404 619 8 surface surface NN 40404 619 9 sinks sink NNS 40404 619 10 . . . 40404 620 1 For for IN 40404 620 2 ground ground NN 40404 620 3 water water NN 40404 620 4 is be VBZ 40404 620 5 constantly constantly RB 40404 620 6 seeping seep VBG 40404 620 7 downward downward RB 40404 620 8 under under IN 40404 620 9 gravity gravity NN 40404 620 10 , , , 40404 620 11 it -PRON- PRP 40404 620 12 is be VBZ 40404 620 13 evaporated evaporate VBN 40404 620 14 in in IN 40404 620 15 the the DT 40404 620 16 waste waste NN 40404 620 17 and and CC 40404 620 18 its -PRON- PRP$ 40404 620 19 moisture moisture NN 40404 620 20 is be VBZ 40404 620 21 carried carry VBN 40404 620 22 upward upward RB 40404 620 23 by by IN 40404 620 24 capillarity capillarity NN 40404 620 25 and and CC 40404 620 26 the the DT 40404 620 27 roots root NNS 40404 620 28 of of IN 40404 620 29 plants plant NNS 40404 620 30 to to IN 40404 620 31 the the DT 40404 620 32 surface surface NN 40404 620 33 to to TO 40404 620 34 be be VB 40404 620 35 evaporated evaporate VBN 40404 620 36 in in IN 40404 620 37 the the DT 40404 620 38 air air NN 40404 620 39 . . . 40404 621 1 In in IN 40404 621 2 wet wet JJ 40404 621 3 seasons season NNS 40404 621 4 these these DT 40404 621 5 constant constant JJ 40404 621 6 losses loss NNS 40404 621 7 are be VBP 40404 621 8 more more JJR 40404 621 9 than than IN 40404 621 10 made make VBN 40404 621 11 good good JJ 40404 621 12 by by IN 40404 621 13 fresh fresh JJ 40404 621 14 supplies supply NNS 40404 621 15 from from IN 40404 621 16 that that DT 40404 621 17 part part NN 40404 621 18 of of IN 40404 621 19 the the DT 40404 621 20 rainfall rainfall NN 40404 621 21 which which WDT 40404 621 22 soaks soak VBZ 40404 621 23 into into IN 40404 621 24 the the DT 40404 621 25 ground ground NN 40404 621 26 , , , 40404 621 27 and and CC 40404 621 28 the the DT 40404 621 29 ground ground NN 40404 621 30 - - HYPH 40404 621 31 water water NN 40404 621 32 surface surface NN 40404 621 33 rises rise VBZ 40404 621 34 . . . 40404 622 1 In in IN 40404 622 2 moist moist NN 40404 622 3 climates climate VBZ 40404 622 4 the the DT 40404 622 5 ground ground NN 40404 622 6 - - HYPH 40404 622 7 water water NN 40404 622 8 surface surface NN 40404 622 9 ( ( -LRB- 40404 622 10 Fig fig NN 40404 622 11 . . . 40404 623 1 24 24 CD 40404 623 2 ) ) -RRB- 40404 623 3 lies lie NNS 40404 623 4 , , , 40404 623 5 as as IN 40404 623 6 a a DT 40404 623 7 rule rule NN 40404 623 8 , , , 40404 623 9 within within IN 40404 623 10 a a DT 40404 623 11 few few JJ 40404 623 12 feet foot NNS 40404 623 13 of of IN 40404 623 14 the the DT 40404 623 15 land land NN 40404 623 16 surface surface NN 40404 623 17 and and CC 40404 623 18 conforms conform VBZ 40404 623 19 to to IN 40404 623 20 it -PRON- PRP 40404 623 21 in in IN 40404 623 22 a a DT 40404 623 23 general general JJ 40404 623 24 way way NN 40404 623 25 , , , 40404 623 26 although although IN 40404 623 27 with with IN 40404 623 28 slopes slope NNS 40404 623 29 of of IN 40404 623 30 less less JJR 40404 623 31 inclination inclination NN 40404 623 32 than than IN 40404 623 33 those those DT 40404 623 34 of of IN 40404 623 35 the the DT 40404 623 36 hills hill NNS 40404 623 37 and and CC 40404 623 38 valleys valley NNS 40404 623 39 . . . 40404 624 1 In in IN 40404 624 2 dry dry JJ 40404 624 3 climates climate VBZ 40404 624 4 permanent permanent JJ 40404 624 5 ground ground NN 40404 624 6 water water NN 40404 624 7 may may MD 40404 624 8 be be VB 40404 624 9 found find VBN 40404 624 10 only only RB 40404 624 11 at at IN 40404 624 12 depths depth NNS 40404 624 13 of of IN 40404 624 14 hundreds hundred NNS 40404 624 15 of of IN 40404 624 16 feet foot NNS 40404 624 17 . . . 40404 625 1 Ground ground NN 40404 625 2 water water NN 40404 625 3 is be VBZ 40404 625 4 held hold VBN 40404 625 5 at at IN 40404 625 6 its -PRON- PRP$ 40404 625 7 height height NN 40404 625 8 by by IN 40404 625 9 the the DT 40404 625 10 fact fact NN 40404 625 11 that that IN 40404 625 12 its -PRON- PRP$ 40404 625 13 circulation circulation NN 40404 625 14 is be VBZ 40404 625 15 constantly constantly RB 40404 625 16 impeded impede VBN 40404 625 17 by by IN 40404 625 18 capillarity capillarity NN 40404 625 19 and and CC 40404 625 20 friction friction NN 40404 625 21 . . . 40404 626 1 If if IN 40404 626 2 it -PRON- PRP 40404 626 3 were be VBD 40404 626 4 as as RB 40404 626 5 free free JJ 40404 626 6 to to TO 40404 626 7 drain drain VB 40404 626 8 away away RB 40404 626 9 as as IN 40404 626 10 are be VBP 40404 626 11 surface surface NN 40404 626 12 streams stream NNS 40404 626 13 , , , 40404 626 14 it -PRON- PRP 40404 626 15 would would MD 40404 626 16 sink sink VB 40404 626 17 soon soon RB 40404 626 18 after after IN 40404 626 19 a a DT 40404 626 20 rain rain NN 40404 626 21 to to IN 40404 626 22 the the DT 40404 626 23 level level NN 40404 626 24 of of IN 40404 626 25 the the DT 40404 626 26 deepest deep JJS 40404 626 27 valleys valley NNS 40404 626 28 of of IN 40404 626 29 the the DT 40404 626 30 region region NN 40404 626 31 . . . 40404 627 1 = = NFP 40404 627 2 Wells Wells NNP 40404 627 3 and and CC 40404 627 4 springs.= springs.= CD 40404 627 5 Excavations excavation NNS 40404 627 6 made make VBN 40404 627 7 in in IN 40404 627 8 permeable permeable JJ 40404 627 9 rocks rock NNS 40404 627 10 below below IN 40404 627 11 the the DT 40404 627 12 ground ground NN 40404 627 13 - - HYPH 40404 627 14 water water NN 40404 627 15 surface surface NN 40404 627 16 fill fill NN 40404 627 17 to to IN 40404 627 18 its -PRON- PRP$ 40404 627 19 level level NN 40404 627 20 and and CC 40404 627 21 are be VBP 40404 627 22 known know VBN 40404 627 23 as as IN 40404 627 24 wells well NNS 40404 627 25 . . . 40404 628 1 Where where WRB 40404 628 2 valleys valley NNS 40404 628 3 cut cut VBD 40404 628 4 this this DT 40404 628 5 surface surface NN 40404 628 6 permanent permanent JJ 40404 628 7 streams stream NNS 40404 628 8 are be VBP 40404 628 9 formed form VBN 40404 628 10 , , , 40404 628 11 the the DT 40404 628 12 water water NN 40404 628 13 either either CC 40404 628 14 oozing ooze VBG 40404 628 15 forth forth RB 40404 628 16 along along IN 40404 628 17 ill ill RB 40404 628 18 - - HYPH 40404 628 19 defined define VBN 40404 628 20 areas area NNS 40404 628 21 or or CC 40404 628 22 issuing issue VBG 40404 628 23 at at IN 40404 628 24 definite definite JJ 40404 628 25 points point NNS 40404 628 26 called call VBD 40404 628 27 springs spring NNS 40404 628 28 , , , 40404 628 29 where where WRB 40404 628 30 it -PRON- PRP 40404 628 31 is be VBZ 40404 628 32 concentrated concentrate VBN 40404 628 33 by by IN 40404 628 34 the the DT 40404 628 35 structure structure NN 40404 628 36 of of IN 40404 628 37 the the DT 40404 628 38 rocks rock NNS 40404 628 39 . . . 40404 629 1 A a DT 40404 629 2 level level NN 40404 629 3 tract tract NN 40404 629 4 where where WRB 40404 629 5 the the DT 40404 629 6 ground ground NN 40404 629 7 - - HYPH 40404 629 8 water water NN 40404 629 9 surface surface NN 40404 629 10 coincides coincide VBZ 40404 629 11 with with IN 40404 629 12 the the DT 40404 629 13 surface surface NN 40404 629 14 of of IN 40404 629 15 the the DT 40404 629 16 ground ground NN 40404 629 17 is be VBZ 40404 629 18 a a DT 40404 629 19 swamp swamp NN 40404 629 20 or or CC 40404 629 21 marsh marsh NNP 40404 629 22 . . . 40404 630 1 By by IN 40404 630 2 studying study VBG 40404 630 3 a a DT 40404 630 4 spring spring NN 40404 630 5 one one PRP 40404 630 6 may may MD 40404 630 7 learn learn VB 40404 630 8 much much JJ 40404 630 9 of of IN 40404 630 10 the the DT 40404 630 11 ways way NNS 40404 630 12 and and CC 40404 630 13 work work NN 40404 630 14 of of IN 40404 630 15 ground ground NN 40404 630 16 water water NN 40404 630 17 . . . 40404 631 1 Spring spring NN 40404 631 2 water water NN 40404 631 3 differs differ VBZ 40404 631 4 from from IN 40404 631 5 that that DT 40404 631 6 of of IN 40404 631 7 the the DT 40404 631 8 stream stream NN 40404 631 9 into into IN 40404 631 10 which which WDT 40404 631 11 it -PRON- PRP 40404 631 12 flows flow VBZ 40404 631 13 in in IN 40404 631 14 several several JJ 40404 631 15 respects respect NNS 40404 631 16 . . . 40404 632 1 If if IN 40404 632 2 we -PRON- PRP 40404 632 3 test test VBP 40404 632 4 the the DT 40404 632 5 spring spring NN 40404 632 6 with with IN 40404 632 7 a a DT 40404 632 8 thermometer thermometer NN 40404 632 9 during during IN 40404 632 10 successive successive JJ 40404 632 11 months month NNS 40404 632 12 , , , 40404 632 13 we -PRON- PRP 40404 632 14 shall shall MD 40404 632 15 find find VB 40404 632 16 that that IN 40404 632 17 its -PRON- PRP$ 40404 632 18 temperature temperature NN 40404 632 19 remains remain VBZ 40404 632 20 much much RB 40404 632 21 the the DT 40404 632 22 same same JJ 40404 632 23 the the DT 40404 632 24 year year NN 40404 632 25 round round NN 40404 632 26 . . . 40404 633 1 In in IN 40404 633 2 summer summer NN 40404 633 3 it -PRON- PRP 40404 633 4 is be VBZ 40404 633 5 markedly markedly RB 40404 633 6 cooler cool JJR 40404 633 7 than than IN 40404 633 8 the the DT 40404 633 9 stream stream NN 40404 633 10 ; ; : 40404 633 11 in in IN 40404 633 12 winter winter NN 40404 633 13 it -PRON- PRP 40404 633 14 is be VBZ 40404 633 15 warmer warm JJR 40404 633 16 and and CC 40404 633 17 remains remain VBZ 40404 633 18 unfrozen unfrozen JJ 40404 633 19 while while IN 40404 633 20 the the DT 40404 633 21 latter latter JJ 40404 633 22 perhaps perhaps RB 40404 633 23 is be VBZ 40404 633 24 locked lock VBN 40404 633 25 in in IN 40404 633 26 ice ice NN 40404 633 27 . . . 40404 634 1 This this DT 40404 634 2 means mean VBZ 40404 634 3 that that IN 40404 634 4 its -PRON- PRP$ 40404 634 5 underground underground JJ 40404 634 6 path path NN 40404 634 7 must must MD 40404 634 8 lie lie VB 40404 634 9 at at IN 40404 634 10 such such PDT 40404 634 11 a a DT 40404 634 12 distance distance NN 40404 634 13 from from IN 40404 634 14 the the DT 40404 634 15 surface surface NN 40404 634 16 that that WDT 40404 634 17 it -PRON- PRP 40404 634 18 is be VBZ 40404 634 19 little little RB 40404 634 20 affected affect VBN 40404 634 21 by by IN 40404 634 22 summer summer NN 40404 634 23 's 's POS 40404 634 24 heat heat NN 40404 634 25 and and CC 40404 634 26 winter winter NN 40404 634 27 's 's POS 40404 634 28 cold cold NN 40404 634 29 . . . 40404 635 1 While while IN 40404 635 2 the the DT 40404 635 3 stream stream NN 40404 635 4 is be VBZ 40404 635 5 often often RB 40404 635 6 turbid turbid JJ 40404 635 7 with with IN 40404 635 8 surface surface NN 40404 635 9 waste waste NN 40404 635 10 washed wash VBD 40404 635 11 into into IN 40404 635 12 it -PRON- PRP 40404 635 13 by by IN 40404 635 14 rains rain NNS 40404 635 15 , , , 40404 635 16 the the DT 40404 635 17 spring spring NN 40404 635 18 remains remain VBZ 40404 635 19 clear clear JJ 40404 635 20 ; ; : 40404 635 21 its -PRON- PRP$ 40404 635 22 water water NN 40404 635 23 has have VBZ 40404 635 24 been be VBN 40404 635 25 filtered filter VBN 40404 635 26 during during IN 40404 635 27 its -PRON- PRP$ 40404 635 28 slow slow JJ 40404 635 29 movement movement NN 40404 635 30 through through IN 40404 635 31 many many JJ 40404 635 32 small small JJ 40404 635 33 underground underground JJ 40404 635 34 passages passage NNS 40404 635 35 and and CC 40404 635 36 the the DT 40404 635 37 pores pore NNS 40404 635 38 of of IN 40404 635 39 rocks rock NNS 40404 635 40 . . . 40404 636 1 Commonly commonly RB 40404 636 2 the the DT 40404 636 3 spring spring NN 40404 636 4 differs differ VBZ 40404 636 5 from from IN 40404 636 6 the the DT 40404 636 7 stream stream NN 40404 636 8 in in IN 40404 636 9 that that IN 40404 636 10 it -PRON- PRP 40404 636 11 carries carry VBZ 40404 636 12 a a DT 40404 636 13 far far RB 40404 636 14 larger large JJR 40404 636 15 load load NN 40404 636 16 of of IN 40404 636 17 dissolved dissolved JJ 40404 636 18 rock rock NN 40404 636 19 . . . 40404 637 1 Chemical chemical JJ 40404 637 2 analysis analysis NN 40404 637 3 proves prove VBZ 40404 637 4 that that WDT 40404 637 5 streams stream NNS 40404 637 6 contain contain VBP 40404 637 7 various various JJ 40404 637 8 minerals mineral NNS 40404 637 9 in in IN 40404 637 10 solution solution NN 40404 637 11 , , , 40404 637 12 but but CC 40404 637 13 these these DT 40404 637 14 are be VBP 40404 637 15 usually usually RB 40404 637 16 in in IN 40404 637 17 quantities quantity NNS 40404 637 18 so so RB 40404 637 19 small small JJ 40404 637 20 that that IN 40404 637 21 they -PRON- PRP 40404 637 22 are be VBP 40404 637 23 not not RB 40404 637 24 perceptible perceptible JJ 40404 637 25 to to IN 40404 637 26 the the DT 40404 637 27 taste taste NN 40404 637 28 or or CC 40404 637 29 feel feel VB 40404 637 30 . . . 40404 638 1 But but CC 40404 638 2 the the DT 40404 638 3 water water NN 40404 638 4 of of IN 40404 638 5 springs spring NNS 40404 638 6 is be VBZ 40404 638 7 often often RB 40404 638 8 well well RB 40404 638 9 charged charge VBN 40404 638 10 with with IN 40404 638 11 soluble soluble JJ 40404 638 12 minerals mineral NNS 40404 638 13 ; ; : 40404 638 14 in in IN 40404 638 15 its -PRON- PRP$ 40404 638 16 slow slow JJ 40404 638 17 , , , 40404 638 18 long long JJ 40404 638 19 journey journey NN 40404 638 20 underground underground RB 40404 638 21 it -PRON- PRP 40404 638 22 has have VBZ 40404 638 23 searched search VBN 40404 638 24 out out RP 40404 638 25 the the DT 40404 638 26 soluble soluble JJ 40404 638 27 parts part NNS 40404 638 28 of of IN 40404 638 29 the the DT 40404 638 30 rocks rock NNS 40404 638 31 through through IN 40404 638 32 which which WDT 40404 638 33 it -PRON- PRP 40404 638 34 seeps seep VBZ 40404 638 35 and and CC 40404 638 36 has have VBZ 40404 638 37 dissolved dissolve VBN 40404 638 38 as as RB 40404 638 39 much much JJ 40404 638 40 of of IN 40404 638 41 them -PRON- PRP 40404 638 42 as as IN 40404 638 43 it -PRON- PRP 40404 638 44 could could MD 40404 638 45 . . . 40404 639 1 When when WRB 40404 639 2 spring spring NN 40404 639 3 water water NN 40404 639 4 is be VBZ 40404 639 5 boiled boil VBN 40404 639 6 away away RB 40404 639 7 , , , 40404 639 8 the the DT 40404 639 9 invisible invisible JJ 40404 639 10 load load NN 40404 639 11 which which WDT 40404 639 12 it -PRON- PRP 40404 639 13 has have VBZ 40404 639 14 carried carry VBN 40404 639 15 is be VBZ 40404 639 16 left leave VBN 40404 639 17 behind behind RB 40404 639 18 , , , 40404 639 19 and and CC 40404 639 20 in in IN 40404 639 21 composition composition NN 40404 639 22 is be VBZ 40404 639 23 found find VBN 40404 639 24 to to TO 40404 639 25 be be VB 40404 639 26 practically practically RB 40404 639 27 identical identical JJ 40404 639 28 with with IN 40404 639 29 that that DT 40404 639 30 of of IN 40404 639 31 the the DT 40404 639 32 soluble soluble JJ 40404 639 33 ingredients ingredient NNS 40404 639 34 of of IN 40404 639 35 the the DT 40404 639 36 country country NN 40404 639 37 rock rock NN 40404 639 38 . . . 40404 640 1 Although although IN 40404 640 2 to to IN 40404 640 3 some some DT 40404 640 4 extent extent NN 40404 640 5 the the DT 40404 640 6 soluble soluble JJ 40404 640 7 waste waste NN 40404 640 8 of of IN 40404 640 9 rocks rock NNS 40404 640 10 is be VBZ 40404 640 11 washed wash VBN 40404 640 12 down down RP 40404 640 13 surface surface NN 40404 640 14 slopes slope NNS 40404 640 15 by by IN 40404 640 16 the the DT 40404 640 17 rain rain NN 40404 640 18 , , , 40404 640 19 by by IN 40404 640 20 far far RB 40404 640 21 the the DT 40404 640 22 larger large JJR 40404 640 23 part part NN 40404 640 24 is be VBZ 40404 640 25 carried carry VBN 40404 640 26 downward downward RB 40404 640 27 by by IN 40404 640 28 ground ground NN 40404 640 29 water water NN 40404 640 30 and and CC 40404 640 31 is be VBZ 40404 640 32 delivered deliver VBN 40404 640 33 to to IN 40404 640 34 streams stream NNS 40404 640 35 by by IN 40404 640 36 springs spring NNS 40404 640 37 . . . 40404 641 1 In in IN 40404 641 2 limestone limestone NN 40404 641 3 regions region NNS 40404 641 4 springs spring NNS 40404 641 5 are be VBP 40404 641 6 charged charge VBN 40404 641 7 with with IN 40404 641 8 calcium calcium NN 40404 641 9 carbonate carbonate NN 40404 641 10 ( ( -LRB- 40404 641 11 the the DT 40404 641 12 carbonate carbonate NN 40404 641 13 of of IN 40404 641 14 lime lime NN 40404 641 15 ) ) -RRB- 40404 641 16 , , , 40404 641 17 and and CC 40404 641 18 where where WRB 40404 641 19 the the DT 40404 641 20 limestone limestone NN 40404 641 21 is be VBZ 40404 641 22 magnesian magnesian JJ 40404 641 23 they -PRON- PRP 40404 641 24 contain contain VBP 40404 641 25 magnesium magnesium NN 40404 641 26 carbonate carbonate NN 40404 641 27 also also RB 40404 641 28 . . . 40404 642 1 Such such JJ 40404 642 2 waters water NNS 40404 642 3 are be VBP 40404 642 4 " " `` 40404 642 5 hard hard JJ 40404 642 6 " " '' 40404 642 7 ; ; : 40404 642 8 when when WRB 40404 642 9 used use VBN 40404 642 10 in in IN 40404 642 11 washing washing NN 40404 642 12 , , , 40404 642 13 the the DT 40404 642 14 minerals mineral NNS 40404 642 15 which which WDT 40404 642 16 they -PRON- PRP 40404 642 17 contain contain VBP 40404 642 18 combine combine VBP 40404 642 19 with with IN 40404 642 20 the the DT 40404 642 21 fatty fatty NN 40404 642 22 acids acid NNS 40404 642 23 of of IN 40404 642 24 soap soap NN 40404 642 25 to to TO 40404 642 26 form form VB 40404 642 27 insoluble insoluble JJ 40404 642 28 curdy curdy JJ 40404 642 29 compounds compound NNS 40404 642 30 . . . 40404 643 1 When when WRB 40404 643 2 springs spring NNS 40404 643 3 rise rise VBP 40404 643 4 from from IN 40404 643 5 rocks rock NNS 40404 643 6 containing contain VBG 40404 643 7 gypsum gypsum NN 40404 643 8 they -PRON- PRP 40404 643 9 are be VBP 40404 643 10 hard hard JJ 40404 643 11 with with IN 40404 643 12 calcium calcium NN 40404 643 13 sulphate sulphate NN 40404 643 14 . . . 40404 644 1 In in IN 40404 644 2 granite granite NN 40404 644 3 regions region NNS 40404 644 4 they -PRON- PRP 40404 644 5 contain contain VBP 40404 644 6 more more RBR 40404 644 7 or or CC 40404 644 8 less less JJR 40404 644 9 soda soda NN 40404 644 10 and and CC 40404 644 11 potash potash NN 40404 644 12 from from IN 40404 644 13 the the DT 40404 644 14 decay decay NN 40404 644 15 of of IN 40404 644 16 feldspar feldspar NN 40404 644 17 . . . 40404 645 1 The the DT 40404 645 2 flow flow NN 40404 645 3 of of IN 40404 645 4 springs spring NNS 40404 645 5 varies vary VBZ 40404 645 6 much much RB 40404 645 7 less less JJR 40404 645 8 during during IN 40404 645 9 the the DT 40404 645 10 different different JJ 40404 645 11 seasons season NNS 40404 645 12 of of IN 40404 645 13 the the DT 40404 645 14 year year NN 40404 645 15 than than IN 40404 645 16 does do VBZ 40404 645 17 that that DT 40404 645 18 of of IN 40404 645 19 surface surface NN 40404 645 20 streams stream NNS 40404 645 21 . . . 40404 646 1 So so RB 40404 646 2 slow slow JJ 40404 646 3 is be VBZ 40404 646 4 the the DT 40404 646 5 movement movement NN 40404 646 6 of of IN 40404 646 7 ground ground NN 40404 646 8 water water NN 40404 646 9 through through IN 40404 646 10 the the DT 40404 646 11 rocks rock NNS 40404 646 12 that that IN 40404 646 13 even even RB 40404 646 14 during during IN 40404 646 15 long long JJ 40404 646 16 droughts drought NNS 40404 646 17 large large JJ 40404 646 18 amounts amount NNS 40404 646 19 remain remain VBP 40404 646 20 stored stored JJ 40404 646 21 above above IN 40404 646 22 the the DT 40404 646 23 levels level NNS 40404 646 24 of of IN 40404 646 25 surface surface NN 40404 646 26 drainage drainage NN 40404 646 27 . . . 40404 647 1 = = NFP 40404 647 2 Movements movement NNS 40404 647 3 of of IN 40404 647 4 ground ground NN 40404 647 5 water.= water.= NNP 40404 647 6 Ground Ground NNP 40404 647 7 water water NN 40404 647 8 is be VBZ 40404 647 9 in in IN 40404 647 10 constant constant JJ 40404 647 11 movement movement NN 40404 647 12 toward toward IN 40404 647 13 its -PRON- PRP$ 40404 647 14 outlets outlet NNS 40404 647 15 . . . 40404 648 1 Its -PRON- PRP$ 40404 648 2 rate rate NN 40404 648 3 varies vary VBZ 40404 648 4 according accord VBG 40404 648 5 to to IN 40404 648 6 many many JJ 40404 648 7 conditions condition NNS 40404 648 8 , , , 40404 648 9 but but CC 40404 648 10 always always RB 40404 648 11 is be VBZ 40404 648 12 extremely extremely RB 40404 648 13 slow slow JJ 40404 648 14 . . . 40404 649 1 Even even RB 40404 649 2 through through IN 40404 649 3 loose loose JJ 40404 649 4 sands sand NNS 40404 649 5 beneath beneath IN 40404 649 6 the the DT 40404 649 7 beds bed NNS 40404 649 8 of of IN 40404 649 9 rivers river NNS 40404 649 10 it -PRON- PRP 40404 649 11 sometimes sometimes RB 40404 649 12 does do VBZ 40404 649 13 not not RB 40404 649 14 exceed exceed VB 40404 649 15 a a DT 40404 649 16 fifth fifth NN 40404 649 17 of of IN 40404 649 18 a a DT 40404 649 19 mile mile NN 40404 649 20 a a DT 40404 649 21 year year NN 40404 649 22 . . . 40404 650 1 [ [ -LRB- 40404 650 2 Illustration illustration NN 40404 650 3 : : : 40404 650 4 Fig Fig NNP 40404 650 5 . . . 40404 651 1 26 26 CD 40404 651 2 . . . 40404 652 1 Geological Geological NNP 40404 652 2 Conditions Conditions NNPS 40404 652 3 favorable favorable JJ 40404 652 4 to to IN 40404 652 5 Strong Strong NNP 40404 652 6 Springs Springs NNP 40404 652 7 _ _ NNP 40404 652 8 a a DT 40404 652 9 _ _ NNP 40404 652 10 , , , 40404 652 11 limestone limestone NN 40404 652 12 ; ; : 40404 652 13 _ _ NNP 40404 652 14 b b NNP 40404 652 15 _ _ NNP 40404 652 16 , , , 40404 652 17 shale shale NNP 40404 652 18 ; ; : 40404 652 19 _ _ NNP 40404 652 20 c c NNP 40404 652 21 _ _ NNP 40404 652 22 , , , 40404 652 23 coarse coarse JJ 40404 652 24 sandstone sandstone NN 40404 652 25 ; ; : 40404 652 26 _ _ NNP 40404 652 27 d d NNP 40404 652 28 _ _ NNP 40404 652 29 , , , 40404 652 30 limestone limestone NN 40404 652 31 ; ; : 40404 652 32 _ _ NNP 40404 652 33 e e NNP 40404 652 34 _ _ NNP 40404 652 35 , , , 40404 652 36 sandstone sandstone NN 40404 652 37 ; ; : 40404 652 38 _ _ NNP 40404 652 39 f f NNP 40404 652 40 _ _ NNP 40404 652 41 , , , 40404 652 42 fissure fissure NN 40404 652 43 . . . 40404 653 1 The the DT 40404 653 2 strata strata NN 40404 653 3 dip dip NN 40404 653 4 toward toward IN 40404 653 5 the the DT 40404 653 6 South South NNP 40404 653 7 , , , 40404 653 8 _ _ NNP 40404 653 9 S S NNP 40404 653 10 _ _ NNP 40404 653 11 . . . 40404 654 1 Redraw Redraw NNP 40404 654 2 the the DT 40404 654 3 diagram diagram NN 40404 654 4 , , , 40404 654 5 marking mark VBG 40404 654 6 the the DT 40404 654 7 points point NNS 40404 654 8 at at IN 40404 654 9 which which WDT 40404 654 10 strong strong JJ 40404 654 11 springs spring NNS 40404 654 12 ( ( -LRB- 40404 654 13 _ _ NNP 40404 654 14 ss ss NNP 40404 654 15 _ _ NNP 40404 654 16 ) ) -RRB- 40404 654 17 may may MD 40404 654 18 be be VB 40404 654 19 expected expect VBN 40404 654 20 . . . 40404 654 21 ] ] -RRB- 40404 655 1 In in IN 40404 655 2 any any DT 40404 655 3 region region NN 40404 655 4 two two CD 40404 655 5 zones zone NNS 40404 655 6 of of IN 40404 655 7 flow flow NN 40404 655 8 may may MD 40404 655 9 be be VB 40404 655 10 distinguished distinguish VBN 40404 655 11 . . . 40404 656 1 The the DT 40404 656 2 _ _ NNP 40404 656 3 upper upper JJ 40404 656 4 zone zone NN 40404 656 5 of of IN 40404 656 6 flow flow NN 40404 656 7 _ _ NNP 40404 656 8 extends extend VBZ 40404 656 9 from from IN 40404 656 10 the the DT 40404 656 11 ground ground NN 40404 656 12 - - HYPH 40404 656 13 water water NN 40404 656 14 surface surface NN 40404 656 15 downward downward RB 40404 656 16 through through IN 40404 656 17 the the DT 40404 656 18 waste waste NN 40404 656 19 mantle mantle NN 40404 656 20 and and CC 40404 656 21 any any DT 40404 656 22 permeable permeable JJ 40404 656 23 rocks rock NNS 40404 656 24 on on IN 40404 656 25 which which WDT 40404 656 26 the the DT 40404 656 27 mantle mantle NN 40404 656 28 rests rest VBZ 40404 656 29 , , , 40404 656 30 as as RB 40404 656 31 far far RB 40404 656 32 as as IN 40404 656 33 the the DT 40404 656 34 first first JJ 40404 656 35 impermeable impermeable JJ 40404 656 36 layer layer NN 40404 656 37 , , , 40404 656 38 where where WRB 40404 656 39 the the DT 40404 656 40 descending descend VBG 40404 656 41 movement movement NN 40404 656 42 of of IN 40404 656 43 the the DT 40404 656 44 water water NN 40404 656 45 is be VBZ 40404 656 46 stopped stop VBN 40404 656 47 . . . 40404 657 1 The the DT 40404 657 2 = = SYM 40404 657 3 deep deep JJ 40404 657 4 zones zone NNS 40404 657 5 of of IN 40404 657 6 flow= flow= NNP 40404 657 7 occupy occupy VBP 40404 657 8 any any DT 40404 657 9 pervious pervious JJ 40404 657 10 rocks rock NNS 40404 657 11 which which WDT 40404 657 12 may may MD 40404 657 13 be be VB 40404 657 14 found find VBN 40404 657 15 below below IN 40404 657 16 the the DT 40404 657 17 impervious impervious JJ 40404 657 18 layer layer NN 40404 657 19 which which WDT 40404 657 20 lies lie VBZ 40404 657 21 nearest near JJS 40404 657 22 to to IN 40404 657 23 the the DT 40404 657 24 surface surface NN 40404 657 25 . . . 40404 658 1 The the DT 40404 658 2 upper upper JJ 40404 658 3 zone zone NN 40404 658 4 is be VBZ 40404 658 5 a a DT 40404 658 6 vast vast JJ 40404 658 7 sheet sheet NN 40404 658 8 of of IN 40404 658 9 water water NN 40404 658 10 saturating saturate VBG 40404 658 11 the the DT 40404 658 12 soil soil NN 40404 658 13 and and CC 40404 658 14 rocks rock NNS 40404 658 15 and and CC 40404 658 16 slowly slowly RB 40404 658 17 seeping seep VBG 40404 658 18 downward downward RB 40404 658 19 through through IN 40404 658 20 their -PRON- PRP$ 40404 658 21 pores pore NNS 40404 658 22 and and CC 40404 658 23 interstices interstice NNS 40404 658 24 along along IN 40404 658 25 the the DT 40404 658 26 slopes slope NNS 40404 658 27 to to IN 40404 658 28 the the DT 40404 658 29 valleys valley NNS 40404 658 30 , , , 40404 658 31 where where WRB 40404 658 32 in in IN 40404 658 33 part part NN 40404 658 34 it -PRON- PRP 40404 658 35 discharges discharge VBZ 40404 658 36 in in IN 40404 658 37 springs spring NNS 40404 658 38 and and CC 40404 658 39 often often RB 40404 658 40 unites unite VBZ 40404 658 41 also also RB 40404 658 42 in in IN 40404 658 43 a a DT 40404 658 44 wide wide JJ 40404 658 45 underflowing underflowing NN 40404 658 46 stream stream NN 40404 658 47 which which WDT 40404 658 48 supports support VBZ 40404 658 49 and and CC 40404 658 50 feeds feed VBZ 40404 658 51 the the DT 40404 658 52 river river NN 40404 658 53 ( ( -LRB- 40404 658 54 Fig fig NN 40404 658 55 . . . 40404 659 1 24 24 CD 40404 659 2 ) ) -RRB- 40404 659 3 . . . 40404 660 1 [ [ -LRB- 40404 660 2 Illustration illustration NN 40404 660 3 : : : 40404 660 4 Fig Fig NNP 40404 660 5 . . . 40404 661 1 27 27 CD 40404 661 2 . . . 40404 662 1 Diagram Diagram NNP 40404 662 2 of of IN 40404 662 3 Well well UH 40404 662 4 which which WDT 40404 662 5 goes go VBZ 40404 662 6 dry dry JJ 40404 662 7 in in IN 40404 662 8 Drought Drought NNP 40404 662 9 , , , 40404 662 10 _ _ NNP 40404 662 11 a a DT 40404 662 12 _ _ NNP 40404 662 13 , , , 40404 662 14 and and CC 40404 662 15 of of IN 40404 662 16 of of IN 40404 662 17 Unfailing Unfailing NNP 40404 662 18 Well Well NNP 40404 662 19 , , , 40404 662 20 _ _ NNP 40404 662 21 b b NNP 40404 662 22 _ _ NNP 40404 662 23 Redraw Redraw NNP 40404 662 24 the the DT 40404 662 25 diagram diagram NN 40404 662 26 , , , 40404 662 27 showing show VBG 40404 662 28 by by IN 40404 662 29 dotted dotted JJ 40404 662 30 line line NN 40404 662 31 the the DT 40404 662 32 normal normal JJ 40404 662 33 ground ground NN 40404 662 34 - - HYPH 40404 662 35 water water NN 40404 662 36 surface surface NN 40404 662 37 and and CC 40404 662 38 by by IN 40404 662 39 broken broken JJ 40404 662 40 line line NN 40404 662 41 the the DT 40404 662 42 ground ground NN 40404 662 43 - - HYPH 40404 662 44 water water NN 40404 662 45 surface surface NN 40404 662 46 at at IN 40404 662 47 times time NNS 40404 662 48 of of IN 40404 662 49 drought drought NN 40404 662 50 ] ] -RRB- 40404 662 51 [ [ -LRB- 40404 662 52 Illustration illustration NN 40404 662 53 : : : 40404 662 54 Fig Fig NNP 40404 662 55 . . . 40404 663 1 28 28 CD 40404 663 2 . . . 40404 664 1 Diagram Diagram NNP 40404 664 2 of of IN 40404 664 3 Wet Wet NNP 40404 664 4 Weather Weather NNP 40404 664 5 Stream Stream NNP 40404 664 6 , , , 40404 664 7 _ _ NNP 40404 664 8 a a DT 40404 664 9 _ _ NNP 40404 664 10 , , , 40404 664 11 and and CC 40404 664 12 of of IN 40404 664 13 Permanent Permanent NNP 40404 664 14 Stream Stream NNP 40404 664 15 , , , 40404 664 16 _ _ NNP 40404 664 17 b b NNP 40404 664 18 _ _ NNP 40404 664 19 Redraw Redraw NNP 40404 664 20 the the DT 40404 664 21 diagram diagram NN 40404 664 22 , , , 40404 664 23 showing show VBG 40404 664 24 ground ground NN 40404 664 25 - - HYPH 40404 664 26 water water NN 40404 664 27 surface surface NN 40404 664 28 by by IN 40404 664 29 dotted dotted JJ 40404 664 30 line line NN 40404 664 31 ] ] -RRB- 40404 664 32 A a DT 40404 664 33 city city NN 40404 664 34 in in IN 40404 664 35 a a DT 40404 664 36 region region NN 40404 664 37 of of IN 40404 664 38 copious copious JJ 40404 664 39 rains rain NNS 40404 664 40 , , , 40404 664 41 built build VBN 40404 664 42 on on IN 40404 664 43 the the DT 40404 664 44 narrow narrow JJ 40404 664 45 flood flood NN 40404 664 46 plain plain NN 40404 664 47 of of IN 40404 664 48 a a DT 40404 664 49 river river NN 40404 664 50 , , , 40404 664 51 overlooked overlook VBN 40404 664 52 by by IN 40404 664 53 hills hill NNS 40404 664 54 , , , 40404 664 55 depends depend VBZ 40404 664 56 for for IN 40404 664 57 its -PRON- PRP$ 40404 664 58 water water NN 40404 664 59 supply supply NN 40404 664 60 on on IN 40404 664 61 driven drive VBN 40404 664 62 wells well NNS 40404 664 63 , , , 40404 664 64 within within IN 40404 664 65 the the DT 40404 664 66 city city NN 40404 664 67 limits limit NNS 40404 664 68 , , , 40404 664 69 sunk sink VBN 40404 664 70 in in IN 40404 664 71 the the DT 40404 664 72 sand sand NN 40404 664 73 a a DT 40404 664 74 few few JJ 40404 664 75 yards yard NNS 40404 664 76 from from IN 40404 664 77 the the DT 40404 664 78 edge edge NN 40404 664 79 of of IN 40404 664 80 the the DT 40404 664 81 stream stream NN 40404 664 82 . . . 40404 665 1 Are be VBP 40404 665 2 these these DT 40404 665 3 wells well NNS 40404 665 4 fed feed VBN 40404 665 5 by by IN 40404 665 6 water water NN 40404 665 7 from from IN 40404 665 8 the the DT 40404 665 9 river river NN 40404 665 10 percolating percolate VBG 40404 665 11 through through IN 40404 665 12 the the DT 40404 665 13 sand sand NN 40404 665 14 , , , 40404 665 15 or or CC 40404 665 16 by by IN 40404 665 17 ground ground NN 40404 665 18 water water NN 40404 665 19 on on IN 40404 665 20 its -PRON- PRP$ 40404 665 21 way way NN 40404 665 22 to to IN 40404 665 23 the the DT 40404 665 24 stream stream NN 40404 665 25 and and CC 40404 665 26 possibly possibly RB 40404 665 27 contaminated contaminate VBD 40404 665 28 with with IN 40404 665 29 the the DT 40404 665 30 sewage sewage NN 40404 665 31 of of IN 40404 665 32 the the DT 40404 665 33 town town NN 40404 665 34 ? ? . 40404 666 1 At at IN 40404 666 2 what what WP 40404 666 3 height height NN 40404 666 4 does do VBZ 40404 666 5 underground underground JJ 40404 666 6 water water NN 40404 666 7 stand stand VB 40404 666 8 in in IN 40404 666 9 the the DT 40404 666 10 wells well NNS 40404 666 11 of of IN 40404 666 12 your -PRON- PRP$ 40404 666 13 region region NN 40404 666 14 ? ? . 40404 667 1 Does do VBZ 40404 667 2 it -PRON- PRP 40404 667 3 vary vary VB 40404 667 4 with with IN 40404 667 5 the the DT 40404 667 6 season season NN 40404 667 7 ? ? . 40404 668 1 Have have VBP 40404 668 2 you -PRON- PRP 40404 668 3 ever ever RB 40404 668 4 known know VBN 40404 668 5 wells well NNS 40404 668 6 to to TO 40404 668 7 go go VB 40404 668 8 dry dry JJ 40404 668 9 ? ? . 40404 669 1 It -PRON- PRP 40404 669 2 may may MD 40404 669 3 be be VB 40404 669 4 possible possible JJ 40404 669 5 to to TO 40404 669 6 get get VB 40404 669 7 data datum NNS 40404 669 8 from from IN 40404 669 9 different different JJ 40404 669 10 wells well NNS 40404 669 11 and and CC 40404 669 12 to to TO 40404 669 13 draw draw VB 40404 669 14 a a DT 40404 669 15 diagram diagram NN 40404 669 16 showing show VBG 40404 669 17 the the DT 40404 669 18 ground ground NN 40404 669 19 - - HYPH 40404 669 20 water water NN 40404 669 21 surface surface NN 40404 669 22 as as IN 40404 669 23 compared compare VBN 40404 669 24 with with IN 40404 669 25 the the DT 40404 669 26 surface surface NN 40404 669 27 of of IN 40404 669 28 the the DT 40404 669 29 ground ground NN 40404 669 30 . . . 40404 670 1 = = NFP 40404 670 2 Fissure Fissure NNP 40404 670 3 springs spring NNS 40404 670 4 and and CC 40404 670 5 artesian artesian JJ 40404 670 6 wells.= wells.= CD 40404 670 7 The the DT 40404 670 8 _ _ NNP 40404 670 9 deeper deep JJR 40404 670 10 zones zone NNS 40404 670 11 of of IN 40404 670 12 flow flow NN 40404 670 13 _ _ NNP 40404 670 14 lie lie NN 40404 670 15 in in IN 40404 670 16 pervious pervious JJ 40404 670 17 strata strata NN 40404 670 18 which which WDT 40404 670 19 are be VBP 40404 670 20 overlain overlain NN 40404 670 21 by by IN 40404 670 22 some some DT 40404 670 23 impervious impervious JJ 40404 670 24 stratum stratum NN 40404 670 25 . . . 40404 671 1 Such such JJ 40404 671 2 layers layer NNS 40404 671 3 are be VBP 40404 671 4 often often RB 40404 671 5 carried carry VBN 40404 671 6 by by IN 40404 671 7 their -PRON- PRP$ 40404 671 8 dip dip NN 40404 671 9 to to IN 40404 671 10 great great JJ 40404 671 11 depths depth NNS 40404 671 12 , , , 40404 671 13 and and CC 40404 671 14 water water NN 40404 671 15 may may MD 40404 671 16 circulate circulate VB 40404 671 17 in in IN 40404 671 18 them -PRON- PRP 40404 671 19 to to TO 40404 671 20 far far RB 40404 671 21 below below IN 40404 671 22 the the DT 40404 671 23 level level NN 40404 671 24 of of IN 40404 671 25 the the DT 40404 671 26 surface surface NN 40404 671 27 streams stream NNS 40404 671 28 and and CC 40404 671 29 even even RB 40404 671 30 of of IN 40404 671 31 the the DT 40404 671 32 sea sea NN 40404 671 33 . . . 40404 672 1 When when WRB 40404 672 2 a a DT 40404 672 3 fissure fissure NN 40404 672 4 crosses cross VBZ 40404 672 5 a a DT 40404 672 6 water water NN 40404 672 7 - - HYPH 40404 672 8 bearing bear VBG 40404 672 9 stratum stratum NN 40404 672 10 , , , 40404 672 11 or or CC 40404 672 12 _ _ NNP 40404 672 13 aquifer aquifer NN 40404 672 14 , , , 40404 672 15 water water NN 40404 672 16 is be VBZ 40404 672 17 forced force VBN 40404 672 18 upward upward RB 40404 672 19 by by IN 40404 672 20 the the DT 40404 672 21 pressure pressure NN 40404 672 22 of of IN 40404 672 23 the the DT 40404 672 24 weight weight NN 40404 672 25 of of IN 40404 672 26 the the DT 40404 672 27 water water NN 40404 672 28 contained contain VBN 40404 672 29 in in IN 40404 672 30 the the DT 40404 672 31 higher high JJR 40404 672 32 parts part NNS 40404 672 33 of of IN 40404 672 34 the the DT 40404 672 35 stratum stratum NN 40404 672 36 , , , 40404 672 37 and and CC 40404 672 38 may may MD 40404 672 39 reach reach VB 40404 672 40 the the DT 40404 672 41 surface surface NN 40404 672 42 as as IN 40404 672 43 a a DT 40404 672 44 fissure fissure NN 40404 672 45 spring spring NN 40404 672 46 . . . 40404 673 1 A a DT 40404 673 2 boring boring JJ 40404 673 3 which which WDT 40404 673 4 taps tap VBZ 40404 673 5 such such PDT 40404 673 6 an an DT 40404 673 7 aquifer aquifer NN 40404 673 8 is be VBZ 40404 673 9 known know VBN 40404 673 10 as as IN 40404 673 11 an an DT 40404 673 12 artesian artesian JJ 40404 673 13 well well NN 40404 673 14 , , , 40404 673 15 a a DT 40404 673 16 name name NN 40404 673 17 derived derive VBN 40404 673 18 from from IN 40404 673 19 a a DT 40404 673 20 province province NN 40404 673 21 in in IN 40404 673 22 France France NNP 40404 673 23 where where WRB 40404 673 24 wells well NNS 40404 673 25 of of IN 40404 673 26 this this DT 40404 673 27 kind kind NN 40404 673 28 have have VBP 40404 673 29 been be VBN 40404 673 30 long long JJ 40404 673 31 in in IN 40404 673 32 use use NN 40404 673 33 . . . 40404 674 1 The the DT 40404 674 2 rise rise NN 40404 674 3 of of IN 40404 674 4 the the DT 40404 674 5 water water NN 40404 674 6 in in IN 40404 674 7 artesian artesian JJ 40404 674 8 wells well NNS 40404 674 9 , , , 40404 674 10 and and CC 40404 674 11 in in IN 40404 674 12 fissure fissure NN 40404 674 13 springs spring NNS 40404 674 14 also also RB 40404 674 15 , , , 40404 674 16 depends depend VBZ 40404 674 17 on on IN 40404 674 18 the the DT 40404 674 19 following follow VBG 40404 674 20 conditions condition NNS 40404 674 21 illustrated illustrate VBN 40404 674 22 in in IN 40404 674 23 Figure Figure NNP 40404 674 24 29 29 CD 40404 674 25 . . . 40404 675 1 The the DT 40404 675 2 aquifer aquifer NN 40404 675 3 dips dip VBZ 40404 675 4 toward toward IN 40404 675 5 the the DT 40404 675 6 region region NN 40404 675 7 of of IN 40404 675 8 the the DT 40404 675 9 wells well NNS 40404 675 10 from from IN 40404 675 11 higher high JJR 40404 675 12 ground ground NN 40404 675 13 , , , 40404 675 14 where where WRB 40404 675 15 it -PRON- PRP 40404 675 16 outcrops outcrop VBZ 40404 675 17 and and CC 40404 675 18 receives receive VBZ 40404 675 19 its -PRON- PRP$ 40404 675 20 water water NN 40404 675 21 . . . 40404 676 1 It -PRON- PRP 40404 676 2 is be VBZ 40404 676 3 inclosed inclose VBN 40404 676 4 between between IN 40404 676 5 an an DT 40404 676 6 impervious impervious JJ 40404 676 7 layer layer NN 40404 676 8 above above IN 40404 676 9 and and CC 40404 676 10 water water NN 40404 676 11 - - HYPH 40404 676 12 tight tight JJ 40404 676 13 or or CC 40404 676 14 water water NN 40404 676 15 - - HYPH 40404 676 16 logged log VBN 40404 676 17 layers layer NNS 40404 676 18 beneath beneath RB 40404 676 19 . . . 40404 677 1 The the DT 40404 677 2 weight weight NN 40404 677 3 of of IN 40404 677 4 the the DT 40404 677 5 column column NN 40404 677 6 of of IN 40404 677 7 water water NN 40404 677 8 thus thus RB 40404 677 9 inclosed inclose VBN 40404 677 10 in in IN 40404 677 11 the the DT 40404 677 12 aquifer aquifer NNP 40404 677 13 causes cause VBZ 40404 677 14 water water NN 40404 677 15 to to TO 40404 677 16 rise rise VB 40404 677 17 in in IN 40404 677 18 the the DT 40404 677 19 well well NN 40404 677 20 , , , 40404 677 21 precisely precisely RB 40404 677 22 as as IN 40404 677 23 the the DT 40404 677 24 weight weight NN 40404 677 25 of of IN 40404 677 26 the the DT 40404 677 27 water water NN 40404 677 28 in in IN 40404 677 29 a a DT 40404 677 30 standpipe standpipe NN 40404 677 31 forces force VBZ 40404 677 32 it -PRON- PRP 40404 677 33 in in IN 40404 677 34 connected connected JJ 40404 677 35 pipes pipe NNS 40404 677 36 to to IN 40404 677 37 the the DT 40404 677 38 upper upper JJ 40404 677 39 stories story NNS 40404 677 40 of of IN 40404 677 41 buildings building NNS 40404 677 42 . . . 40404 678 1 [ [ -LRB- 40404 678 2 Illustration illustration NN 40404 678 3 : : : 40404 678 4 Fig Fig NNP 40404 678 5 . . . 40404 679 1 29 29 CD 40404 679 2 . . . 40404 680 1 Section section NN 40404 680 2 across across IN 40404 680 3 South South NNP 40404 680 4 Dakota Dakota NNP 40404 680 5 from from IN 40404 680 6 the the DT 40404 680 7 Black Black NNP 40404 680 8 Hills Hills NNPS 40404 680 9 to to IN 40404 680 10 Sioux Sioux NNP 40404 680 11 Falls Falls NNP 40404 680 12 ( ( -LRB- 40404 680 13 S S NNP 40404 680 14 ) ) -RRB- 40404 680 15 , , , 40404 680 16 Illustrating illustrate VBG 40404 680 17 the the DT 40404 680 18 Conditions Conditions NNPS 40404 680 19 of of IN 40404 680 20 Artesian Artesian NNP 40404 680 21 Wells Wells NNP 40404 680 22 _ _ NNP 40404 680 23 a a DT 40404 680 24 _ _ NNP 40404 680 25 , , , 40404 680 26 crystalline crystalline JJ 40404 680 27 impervious impervious JJ 40404 680 28 rocks rock NNS 40404 680 29 ; ; : 40404 680 30 _ _ NNP 40404 680 31 b b NNP 40404 680 32 _ _ NNP 40404 680 33 , , , 40404 680 34 sedimentary sedimentary JJ 40404 680 35 rocks rock NNS 40404 680 36 , , , 40404 680 37 shales shale NNS 40404 680 38 , , , 40404 680 39 limestones limestone NNS 40404 680 40 , , , 40404 680 41 and and CC 40404 680 42 sandstones sandstone NNS 40404 680 43 ; ; : 40404 680 44 _ _ NNP 40404 680 45 c c NNP 40404 680 46 _ _ NNP 40404 680 47 , , , 40404 680 48 pervious pervious JJ 40404 680 49 sandstone sandstone NN 40404 680 50 , , , 40404 680 51 the the DT 40404 680 52 aquifer aquifer JJ 40404 680 53 ; ; : 40404 680 54 _ _ NNP 40404 680 55 d d NNP 40404 680 56 _ _ NNP 40404 680 57 , , , 40404 680 58 impervious impervious JJ 40404 680 59 shales shale NNS 40404 680 60 ; ; : 40404 680 61 _ _ NNP 40404 680 62 w w NNP 40404 680 63 _ _ NNP 40404 680 64 , , , 40404 680 65 _ _ NNP 40404 680 66 w w NNP 40404 680 67 _ _ NNP 40404 680 68 , , , 40404 680 69 _ _ NNP 40404 680 70 w w NNP 40404 680 71 _ _ NNP 40404 680 72 , , , 40404 680 73 artesian artesian JJ 40404 680 74 wells well NNS 40404 680 75 . . . 40404 680 76 ] ] -RRB- 40404 681 1 Which which WDT 40404 681 2 will will MD 40404 681 3 supply supply VB 40404 681 4 the the DT 40404 681 5 larger large JJR 40404 681 6 region region NN 40404 681 7 with with IN 40404 681 8 artesian artesian JJ 40404 681 9 wells well NNS 40404 681 10 , , , 40404 681 11 an an DT 40404 681 12 aquifer aquifer NN 40404 681 13 whose whose WP$ 40404 681 14 dip dip NN 40404 681 15 is be VBZ 40404 681 16 steep steep JJ 40404 681 17 or or CC 40404 681 18 one one CD 40404 681 19 whose whose WP$ 40404 681 20 dip dip NN 40404 681 21 is be VBZ 40404 681 22 gentle gentle JJ 40404 681 23 ? ? . 40404 682 1 Which which WDT 40404 682 2 of of IN 40404 682 3 the the DT 40404 682 4 two two CD 40404 682 5 aquifers aquifer NNS 40404 682 6 , , , 40404 682 7 their -PRON- PRP$ 40404 682 8 thickness thickness NN 40404 682 9 being be VBG 40404 682 10 equal equal JJ 40404 682 11 , , , 40404 682 12 will will MD 40404 682 13 have have VB 40404 682 14 the the DT 40404 682 15 larger large JJR 40404 682 16 outcrop outcrop NN 40404 682 17 and and CC 40404 682 18 therefore therefore RB 40404 682 19 be be VB 40404 682 20 able able JJ 40404 682 21 to to TO 40404 682 22 draw draw VB 40404 682 23 upon upon IN 40404 682 24 the the DT 40404 682 25 larger large JJR 40404 682 26 amount amount NN 40404 682 27 of of IN 40404 682 28 water water NN 40404 682 29 from from IN 40404 682 30 the the DT 40404 682 31 rainfall rainfall NN 40404 682 32 ? ? . 40404 683 1 Illustrate illustrate VB 40404 683 2 with with IN 40404 683 3 diagrams diagram NNS 40404 683 4 . . . 40404 684 1 = = NFP 40404 684 2 The the DT 40404 684 3 zone zone NN 40404 684 4 of of IN 40404 684 5 solution.= solution.= CD 40404 684 6 Near near IN 40404 684 7 the the DT 40404 684 8 surface surface NN 40404 684 9 , , , 40404 684 10 where where WRB 40404 684 11 the the DT 40404 684 12 circulation circulation NN 40404 684 13 of of IN 40404 684 14 ground ground NN 40404 684 15 water water NN 40404 684 16 is be VBZ 40404 684 17 most most RBS 40404 684 18 active active JJ 40404 684 19 , , , 40404 684 20 it -PRON- PRP 40404 684 21 oxidizes oxidize VBZ 40404 684 22 , , , 40404 684 23 corrodes corrode NNS 40404 684 24 , , , 40404 684 25 and and CC 40404 684 26 dissolves dissolve VBZ 40404 684 27 the the DT 40404 684 28 rocks rock NNS 40404 684 29 through through IN 40404 684 30 which which WDT 40404 684 31 it -PRON- PRP 40404 684 32 passes pass VBZ 40404 684 33 . . . 40404 685 1 It -PRON- PRP 40404 685 2 leaches leach VBZ 40404 685 3 soils soil NNS 40404 685 4 and and CC 40404 685 5 subsoils subsoil NNS 40404 685 6 of of IN 40404 685 7 their -PRON- PRP$ 40404 685 8 lime lime NN 40404 685 9 and and CC 40404 685 10 other other JJ 40404 685 11 soluble soluble JJ 40404 685 12 minerals mineral NNS 40404 685 13 upon upon IN 40404 685 14 which which WDT 40404 685 15 plants plant NNS 40404 685 16 depend depend VBP 40404 685 17 for for IN 40404 685 18 their -PRON- PRP$ 40404 685 19 food food NN 40404 685 20 . . . 40404 686 1 It -PRON- PRP 40404 686 2 takes take VBZ 40404 686 3 away away RB 40404 686 4 the the DT 40404 686 5 soluble soluble JJ 40404 686 6 cements cement NNS 40404 686 7 of of IN 40404 686 8 rocks rock NNS 40404 686 9 ; ; : 40404 686 10 it -PRON- PRP 40404 686 11 widens widen VBZ 40404 686 12 fissures fissure NNS 40404 686 13 and and CC 40404 686 14 joints joint NNS 40404 686 15 and and CC 40404 686 16 opens open VBZ 40404 686 17 winding winding NN 40404 686 18 passages passage NNS 40404 686 19 along along IN 40404 686 20 the the DT 40404 686 21 bedding bedding NN 40404 686 22 planes plane NNS 40404 686 23 ; ; : 40404 686 24 it -PRON- PRP 40404 686 25 may may MD 40404 686 26 even even RB 40404 686 27 remove remove VB 40404 686 28 whole whole JJ 40404 686 29 beds bed NNS 40404 686 30 of of IN 40404 686 31 soluble soluble JJ 40404 686 32 rocks rock NNS 40404 686 33 , , , 40404 686 34 such such JJ 40404 686 35 as as IN 40404 686 36 rock rock NN 40404 686 37 salt salt NN 40404 686 38 , , , 40404 686 39 limestone limestone NN 40404 686 40 , , , 40404 686 41 or or CC 40404 686 42 gypsum gypsum NN 40404 686 43 . . . 40404 687 1 The the DT 40404 687 2 work work NN 40404 687 3 of of IN 40404 687 4 ground ground NN 40404 687 5 water water NN 40404 687 6 in in IN 40404 687 7 producing produce VBG 40404 687 8 landslides landslide NNS 40404 687 9 has have VBZ 40404 687 10 already already RB 40404 687 11 been be VBN 40404 687 12 noticed notice VBN 40404 687 13 . . . 40404 688 1 The the DT 40404 688 2 zone zone NN 40404 688 3 in in IN 40404 688 4 which which WDT 40404 688 5 the the DT 40404 688 6 work work NN 40404 688 7 of of IN 40404 688 8 ground ground NN 40404 688 9 water water NN 40404 688 10 is be VBZ 40404 688 11 thus thus RB 40404 688 12 for for IN 40404 688 13 the the DT 40404 688 14 most most JJS 40404 688 15 part part NN 40404 688 16 destructive destructive JJ 40404 688 17 we -PRON- PRP 40404 688 18 may may MD 40404 688 19 call call VB 40404 688 20 the the DT 40404 688 21 zone zone NN 40404 688 22 of of IN 40404 688 23 solution solution NN 40404 688 24 . . . 40404 689 1 [ [ -LRB- 40404 689 2 Illustration illustration NN 40404 689 3 : : : 40404 689 4 Fig Fig NNP 40404 689 5 . . . 40404 690 1 30 30 CD 40404 690 2 . . . 40404 691 1 Diagram Diagram NNP 40404 691 2 of of IN 40404 691 3 Caverns Caverns NNP 40404 691 4 and and CC 40404 691 5 Sink Sink NNP 40404 691 6 Holes Holes NNPS 40404 691 7 ] ] -RRB- 40404 691 8 = = VBZ 40404 691 9 Caves.= Caves.= NNP 40404 691 10 In in IN 40404 691 11 massive massive JJ 40404 691 12 limestone limestone NN 40404 691 13 rocks rock NNS 40404 691 14 , , , 40404 691 15 ground ground NN 40404 691 16 water water NN 40404 691 17 dissolves dissolve NNS 40404 691 18 channels channel NNS 40404 691 19 which which WDT 40404 691 20 sometimes sometimes RB 40404 691 21 form form VBP 40404 691 22 large large JJ 40404 691 23 caves cave NNS 40404 691 24 ( ( -LRB- 40404 691 25 Fig fig NN 40404 691 26 . . . 40404 692 1 30 30 CD 40404 692 2 ) ) -RRB- 40404 692 3 . . . 40404 693 1 The the DT 40404 693 2 necessary necessary JJ 40404 693 3 conditions condition NNS 40404 693 4 for for IN 40404 693 5 the the DT 40404 693 6 excavation excavation NN 40404 693 7 of of IN 40404 693 8 caves cave NNS 40404 693 9 of of IN 40404 693 10 great great JJ 40404 693 11 size size NN 40404 693 12 are be VBP 40404 693 13 well well RB 40404 693 14 shown show VBN 40404 693 15 in in IN 40404 693 16 central central JJ 40404 693 17 Kentucky Kentucky NNP 40404 693 18 , , , 40404 693 19 where where WRB 40404 693 20 an an DT 40404 693 21 upland upland NN 40404 693 22 is be VBZ 40404 693 23 built build VBN 40404 693 24 throughout throughout IN 40404 693 25 of of IN 40404 693 26 thick thick JJ 40404 693 27 horizontal horizontal JJ 40404 693 28 beds bed NNS 40404 693 29 of of IN 40404 693 30 limestone limestone NN 40404 693 31 . . . 40404 694 1 The the DT 40404 694 2 absence absence NN 40404 694 3 of of IN 40404 694 4 layers layer NNS 40404 694 5 of of IN 40404 694 6 insoluble insoluble JJ 40404 694 7 or or CC 40404 694 8 impervious impervious JJ 40404 694 9 rock rock NN 40404 694 10 in in IN 40404 694 11 its -PRON- PRP$ 40404 694 12 structure structure NN 40404 694 13 allows allow VBZ 40404 694 14 a a DT 40404 694 15 free free JJ 40404 694 16 circulation circulation NN 40404 694 17 of of IN 40404 694 18 ground ground NN 40404 694 19 water water NN 40404 694 20 within within IN 40404 694 21 it -PRON- PRP 40404 694 22 by by IN 40404 694 23 the the DT 40404 694 24 way way NN 40404 694 25 of of IN 40404 694 26 all all DT 40404 694 27 natural natural JJ 40404 694 28 openings opening NNS 40404 694 29 in in IN 40404 694 30 the the DT 40404 694 31 rock rock NN 40404 694 32 . . . 40404 695 1 These these DT 40404 695 2 water water NN 40404 695 3 ways way NNS 40404 695 4 have have VBP 40404 695 5 been be VBN 40404 695 6 gradually gradually RB 40404 695 7 enlarged enlarge VBN 40404 695 8 by by IN 40404 695 9 solution solution NN 40404 695 10 and and CC 40404 695 11 wear wear VB 40404 695 12 until until IN 40404 695 13 the the DT 40404 695 14 upland upland NN 40404 695 15 is be VBZ 40404 695 16 honeycombed honeycomb VBN 40404 695 17 with with IN 40404 695 18 caves cave NNS 40404 695 19 . . . 40404 696 1 Five five CD 40404 696 2 hundred hundred CD 40404 696 3 open open JJ 40404 696 4 caverns cavern NNS 40404 696 5 are be VBP 40404 696 6 known know VBN 40404 696 7 in in IN 40404 696 8 one one CD 40404 696 9 county county NN 40404 696 10 . . . 40404 697 1 Mammoth Mammoth NNP 40404 697 2 Cave Cave NNP 40404 697 3 , , , 40404 697 4 the the DT 40404 697 5 largest large JJS 40404 697 6 of of IN 40404 697 7 these these DT 40404 697 8 caverns cavern NNS 40404 697 9 , , , 40404 697 10 consists consist VBZ 40404 697 11 of of IN 40404 697 12 a a DT 40404 697 13 labyrinth labyrinth NN 40404 697 14 of of IN 40404 697 15 chambers chamber NNS 40404 697 16 and and CC 40404 697 17 winding winding NN 40404 697 18 galleries gallery NNS 40404 697 19 whose whose WP$ 40404 697 20 total total JJ 40404 697 21 length length NN 40404 697 22 is be VBZ 40404 697 23 said say VBN 40404 697 24 to to TO 40404 697 25 be be VB 40404 697 26 as as RB 40404 697 27 much much JJ 40404 697 28 as as IN 40404 697 29 thirty thirty CD 40404 697 30 miles mile NNS 40404 697 31 . . . 40404 698 1 One one CD 40404 698 2 passage passage NN 40404 698 3 four four CD 40404 698 4 miles mile NNS 40404 698 5 long long RB 40404 698 6 has have VBZ 40404 698 7 an an DT 40404 698 8 average average JJ 40404 698 9 width width NN 40404 698 10 of of IN 40404 698 11 about about RB 40404 698 12 sixty sixty CD 40404 698 13 feet foot NNS 40404 698 14 and and CC 40404 698 15 an an DT 40404 698 16 average average JJ 40404 698 17 height height NN 40404 698 18 of of IN 40404 698 19 forty forty CD 40404 698 20 feet foot NNS 40404 698 21 . . . 40404 699 1 One one CD 40404 699 2 of of IN 40404 699 3 the the DT 40404 699 4 great great JJ 40404 699 5 halls hall NNS 40404 699 6 is be VBZ 40404 699 7 three three CD 40404 699 8 hundred hundred CD 40404 699 9 feet foot NNS 40404 699 10 in in IN 40404 699 11 width width NN 40404 699 12 and and CC 40404 699 13 is be VBZ 40404 699 14 overhung overhang VBN 40404 699 15 by by IN 40404 699 16 a a DT 40404 699 17 solid solid JJ 40404 699 18 arch arch NN 40404 699 19 of of IN 40404 699 20 limestone limestone NN 40404 699 21 one one CD 40404 699 22 hundred hundred CD 40404 699 23 feet foot NNS 40404 699 24 above above IN 40404 699 25 the the DT 40404 699 26 floor floor NN 40404 699 27 . . . 40404 700 1 Galleries gallery NNS 40404 700 2 at at IN 40404 700 3 different different JJ 40404 700 4 levels level NNS 40404 700 5 are be VBP 40404 700 6 connected connect VBN 40404 700 7 by by IN 40404 700 8 well well RB 40404 700 9 - - HYPH 40404 700 10 like like JJ 40404 700 11 pits pit NNS 40404 700 12 , , , 40404 700 13 some some DT 40404 700 14 of of IN 40404 700 15 which which WDT 40404 700 16 measure measure VBP 40404 700 17 two two CD 40404 700 18 hundred hundred CD 40404 700 19 and and CC 40404 700 20 twenty twenty CD 40404 700 21 - - HYPH 40404 700 22 five five CD 40404 700 23 feet foot NNS 40404 700 24 from from IN 40404 700 25 top top NN 40404 700 26 to to IN 40404 700 27 bottom bottom NN 40404 700 28 . . . 40404 701 1 Through through IN 40404 701 2 some some DT 40404 701 3 of of IN 40404 701 4 the the DT 40404 701 5 lowest low JJS 40404 701 6 of of IN 40404 701 7 these these DT 40404 701 8 tunnels tunnel NNS 40404 701 9 flows flow VBZ 40404 701 10 Echo Echo NNP 40404 701 11 River River NNP 40404 701 12 , , , 40404 701 13 still still RB 40404 701 14 at at IN 40404 701 15 work work NN 40404 701 16 dissolving dissolving NN 40404 701 17 and and CC 40404 701 18 wearing wear VBG 40404 701 19 away away RP 40404 701 20 the the DT 40404 701 21 rock rock NN 40404 701 22 while while IN 40404 701 23 on on IN 40404 701 24 its -PRON- PRP$ 40404 701 25 dark dark JJ 40404 701 26 way way NN 40404 701 27 to to TO 40404 701 28 appear appear VB 40404 701 29 at at IN 40404 701 30 the the DT 40404 701 31 surface surface NN 40404 701 32 as as IN 40404 701 33 a a DT 40404 701 34 great great JJ 40404 701 35 spring spring NN 40404 701 36 . . . 40404 702 1 = = NFP 40404 702 2 Natural natural JJ 40404 702 3 bridges.= bridges.= CD 40404 702 4 As as IN 40404 702 5 a a DT 40404 702 6 cavern cavern JJ 40404 702 7 enlarges enlarge NNS 40404 702 8 and and CC 40404 702 9 the the DT 40404 702 10 surface surface NN 40404 702 11 of of IN 40404 702 12 the the DT 40404 702 13 land land NN 40404 702 14 above above IN 40404 702 15 it -PRON- PRP 40404 702 16 is be VBZ 40404 702 17 lowered lower VBN 40404 702 18 by by IN 40404 702 19 weathering weather VBG 40404 702 20 , , , 40404 702 21 the the DT 40404 702 22 roof roof NN 40404 702 23 at at IN 40404 702 24 last last JJ 40404 702 25 breaks break NNS 40404 702 26 down down RP 40404 702 27 and and CC 40404 702 28 the the DT 40404 702 29 cave cave NN 40404 702 30 becomes become VBZ 40404 702 31 an an DT 40404 702 32 open open JJ 40404 702 33 ravine ravine NN 40404 702 34 . . . 40404 703 1 A a DT 40404 703 2 portion portion NN 40404 703 3 of of IN 40404 703 4 the the DT 40404 703 5 roof roof NN 40404 703 6 may may MD 40404 703 7 for for IN 40404 703 8 a a DT 40404 703 9 while while NN 40404 703 10 remain remain NN 40404 703 11 , , , 40404 703 12 forming form VBG 40404 703 13 a a DT 40404 703 14 " " `` 40404 703 15 natural natural JJ 40404 703 16 bridge bridge NN 40404 703 17 . . . 40404 703 18 " " '' 40404 704 1 = = NFP 40404 704 2 Sink sink NN 40404 704 3 holes.= holes.= NNP 40404 704 4 In in IN 40404 704 5 limestone limestone NN 40404 704 6 regions region NNS 40404 704 7 channels channel NNS 40404 704 8 under under IN 40404 704 9 ground ground NN 40404 704 10 may may MD 40404 704 11 become become VB 40404 704 12 so so RB 40404 704 13 well well RB 40404 704 14 developed develop VBN 40404 704 15 that that IN 40404 704 16 the the DT 40404 704 17 water water NN 40404 704 18 of of IN 40404 704 19 rains rain NNS 40404 704 20 rapidly rapidly RB 40404 704 21 drains drain VBZ 40404 704 22 away away RB 40404 704 23 through through IN 40404 704 24 them -PRON- PRP 40404 704 25 . . . 40404 705 1 Ground ground NN 40404 705 2 water water NN 40404 705 3 stands stand VBZ 40404 705 4 low low JJ 40404 705 5 and and CC 40404 705 6 wells well NNS 40404 705 7 must must MD 40404 705 8 be be VB 40404 705 9 sunk sink VBN 40404 705 10 deep deep JJ 40404 705 11 to to TO 40404 705 12 find find VB 40404 705 13 it -PRON- PRP 40404 705 14 . . . 40404 706 1 Little little JJ 40404 706 2 or or CC 40404 706 3 no no DT 40404 706 4 surface surface NN 40404 706 5 water water NN 40404 706 6 is be VBZ 40404 706 7 left leave VBN 40404 706 8 to to TO 40404 706 9 form form VB 40404 706 10 brooks brooks NNP 40404 706 11 . . . 40404 707 1 [ [ -LRB- 40404 707 2 Illustration illustration NN 40404 707 3 : : : 40404 707 4 Fig Fig NNP 40404 707 5 . . . 40404 708 1 31 31 CD 40404 708 2 . . . 40404 709 1 Sink Sink NNP 40404 709 2 Holes Holes NNPS 40404 709 3 in in IN 40404 709 4 the the DT 40404 709 5 Karst Karst NNP 40404 709 6 , , , 40404 709 7 Austria Austria NNP 40404 709 8 ] ] -RRB- 40404 709 9 Thus thus RB 40404 709 10 across across IN 40404 709 11 the the DT 40404 709 12 limestone limestone NN 40404 709 13 upland upland NN 40404 709 14 of of IN 40404 709 15 central central JJ 40404 709 16 Kentucky Kentucky NNP 40404 709 17 one one NN 40404 709 18 meets meet VBZ 40404 709 19 but but CC 40404 709 20 three three CD 40404 709 21 surface surface NN 40404 709 22 streams stream NNS 40404 709 23 in in IN 40404 709 24 a a DT 40404 709 25 hundred hundred CD 40404 709 26 miles mile NNS 40404 709 27 . . . 40404 710 1 Between between IN 40404 710 2 their -PRON- PRP$ 40404 710 3 valleys valley NNS 40404 710 4 surface surface NN 40404 710 5 water water NN 40404 710 6 finds find VBZ 40404 710 7 its -PRON- PRP$ 40404 710 8 way way NN 40404 710 9 underground underground RB 40404 710 10 by by IN 40404 710 11 means mean NNS 40404 710 12 of of IN 40404 710 13 sink sink NN 40404 710 14 holes hole NNS 40404 710 15 . . . 40404 711 1 These these DT 40404 711 2 are be VBP 40404 711 3 pits pit NNS 40404 711 4 , , , 40404 711 5 commonly commonly RB 40404 711 6 funnel funnel NN 40404 711 7 shaped shape VBN 40404 711 8 , , , 40404 711 9 formed form VBN 40404 711 10 by by IN 40404 711 11 the the DT 40404 711 12 enlargement enlargement NN 40404 711 13 of of IN 40404 711 14 crevice crevice NN 40404 711 15 or or CC 40404 711 16 joint joint NN 40404 711 17 by by IN 40404 711 18 percolating percolate VBG 40404 711 19 water water NN 40404 711 20 , , , 40404 711 21 or or CC 40404 711 22 by by IN 40404 711 23 the the DT 40404 711 24 breakdown breakdown NN 40404 711 25 of of IN 40404 711 26 some some DT 40404 711 27 portion portion NN 40404 711 28 of of IN 40404 711 29 the the DT 40404 711 30 roof roof NN 40404 711 31 of of IN 40404 711 32 a a DT 40404 711 33 cave cave NN 40404 711 34 . . . 40404 712 1 By by IN 40404 712 2 clogging clog VBG 40404 712 3 of of IN 40404 712 4 the the DT 40404 712 5 outlet outlet NN 40404 712 6 a a DT 40404 712 7 sink sink NN 40404 712 8 hole hole NN 40404 712 9 may may MD 40404 712 10 come come VB 40404 712 11 to to TO 40404 712 12 be be VB 40404 712 13 filled fill VBN 40404 712 14 by by IN 40404 712 15 a a DT 40404 712 16 pond pond NN 40404 712 17 . . . 40404 713 1 Central Central NNP 40404 713 2 Florida Florida NNP 40404 713 3 is be VBZ 40404 713 4 a a DT 40404 713 5 limestone limestone NN 40404 713 6 region region NN 40404 713 7 with with IN 40404 713 8 its -PRON- PRP$ 40404 713 9 drainage drainage NN 40404 713 10 largely largely RB 40404 713 11 subterranean subterranean JJ 40404 713 12 and and CC 40404 713 13 in in IN 40404 713 14 part part NN 40404 713 15 below below IN 40404 713 16 the the DT 40404 713 17 level level NN 40404 713 18 even even RB 40404 713 19 of of IN 40404 713 20 the the DT 40404 713 21 sea sea NN 40404 713 22 . . . 40404 714 1 Sink sink NN 40404 714 2 holes hole NNS 40404 714 3 are be VBP 40404 714 4 common common JJ 40404 714 5 , , , 40404 714 6 and and CC 40404 714 7 many many JJ 40404 714 8 of of IN 40404 714 9 them -PRON- PRP 40404 714 10 are be VBP 40404 714 11 occupied occupy VBN 40404 714 12 by by IN 40404 714 13 lakelets lakelet NNS 40404 714 14 . . . 40404 715 1 Great great JJ 40404 715 2 springs spring NNS 40404 715 3 mark mark VBP 40404 715 4 the the DT 40404 715 5 point point NN 40404 715 6 of of IN 40404 715 7 issue issue NN 40404 715 8 of of IN 40404 715 9 underground underground JJ 40404 715 10 streams stream NNS 40404 715 11 , , , 40404 715 12 while while IN 40404 715 13 some some DT 40404 715 14 rise rise NN 40404 715 15 from from IN 40404 715 16 beneath beneath IN 40404 715 17 the the DT 40404 715 18 sea sea NN 40404 715 19 . . . 40404 716 1 Silver Silver NNP 40404 716 2 Spring Spring NNP 40404 716 3 , , , 40404 716 4 one one CD 40404 716 5 of of IN 40404 716 6 the the DT 40404 716 7 largest large JJS 40404 716 8 , , , 40404 716 9 discharges discharge NNS 40404 716 10 from from IN 40404 716 11 a a DT 40404 716 12 basin basin NN 40404 716 13 eight eight CD 40404 716 14 hundred hundred CD 40404 716 15 feet foot NNS 40404 716 16 wide wide JJ 40404 716 17 and and CC 40404 716 18 thirty thirty CD 40404 716 19 feet foot NNS 40404 716 20 deep deep JJ 40404 716 21 a a DT 40404 716 22 little little JJ 40404 716 23 river river NN 40404 716 24 navigable navigable JJ 40404 716 25 for for IN 40404 716 26 small small JJ 40404 716 27 steamers steamer NNS 40404 716 28 to to IN 40404 716 29 its -PRON- PRP$ 40404 716 30 source source NN 40404 716 31 . . . 40404 717 1 About about IN 40404 717 2 the the DT 40404 717 3 spring spring NN 40404 717 4 there there EX 40404 717 5 are be VBP 40404 717 6 no no DT 40404 717 7 surface surface NN 40404 717 8 streams stream NNS 40404 717 9 for for IN 40404 717 10 sixty sixty CD 40404 717 11 miles mile NNS 40404 717 12 . . . 40404 718 1 [ [ -LRB- 40404 718 2 Illustration illustration NN 40404 718 3 : : : 40404 718 4 Fig Fig NNP 40404 718 5 . . . 40404 719 1 32 32 CD 40404 719 2 . . . 40404 720 1 Underground Underground NNP 40404 720 2 Stream Stream NNP 40404 720 3 Issuing Issuing NNP 40404 720 4 from from IN 40404 720 5 Base Base NNP 40404 720 6 of of IN 40404 720 7 Cliff Cliff NNP 40404 720 8 , , , 40404 720 9 the the DT 40404 720 10 Karst Karst NNP 40404 720 11 , , , 40404 720 12 Austria Austria NNP 40404 720 13 ] ] -RRB- 40404 720 14 = = NFP 40404 720 15 The the DT 40404 720 16 Karst.= Karst.= NNS 40404 720 17 Along along IN 40404 720 18 the the DT 40404 720 19 eastern eastern JJ 40404 720 20 coast coast NN 40404 720 21 of of IN 40404 720 22 the the DT 40404 720 23 Adriatic Adriatic NNP 40404 720 24 , , , 40404 720 25 as as IN 40404 720 26 far far RB 40404 720 27 south south RB 40404 720 28 as as IN 40404 720 29 Montenegro Montenegro NNP 40404 720 30 , , , 40404 720 31 lies lie VBZ 40404 720 32 a a DT 40404 720 33 belt belt NN 40404 720 34 of of IN 40404 720 35 limestone limestone NN 40404 720 36 mountains mountain NNS 40404 720 37 singularly singularly RB 40404 720 38 worn wear VBN 40404 720 39 and and CC 40404 720 40 honeycombed honeycomb VBN 40404 720 41 by by IN 40404 720 42 the the DT 40404 720 43 solvent solvent NN 40404 720 44 action action NN 40404 720 45 of of IN 40404 720 46 water water NN 40404 720 47 . . . 40404 721 1 Where where WRB 40404 721 2 forests forest NNS 40404 721 3 have have VBP 40404 721 4 been be VBN 40404 721 5 cut cut VBN 40404 721 6 from from IN 40404 721 7 the the DT 40404 721 8 mountain mountain NN 40404 721 9 sides side NNS 40404 721 10 and and CC 40404 721 11 the the DT 40404 721 12 red red JJ 40404 721 13 soil soil NN 40404 721 14 has have VBZ 40404 721 15 washed wash VBN 40404 721 16 away away RB 40404 721 17 , , , 40404 721 18 the the DT 40404 721 19 surface surface NN 40404 721 20 of of IN 40404 721 21 the the DT 40404 721 22 white white NNP 40404 721 23 limestone limestone NNP 40404 721 24 forms form VBZ 40404 721 25 a a DT 40404 721 26 pathless pathless JJ 40404 721 27 desert desert NN 40404 721 28 of of IN 40404 721 29 rock rock NN 40404 721 30 where where WRB 40404 721 31 each each DT 40404 721 32 square square NN 40404 721 33 rod rod NN 40404 721 34 has have VBZ 40404 721 35 been be VBN 40404 721 36 corroded corrode VBN 40404 721 37 into into IN 40404 721 38 an an DT 40404 721 39 intricate intricate JJ 40404 721 40 branch branch NN 40404 721 41 work work NN 40404 721 42 of of IN 40404 721 43 shallow shallow JJ 40404 721 44 furrows furrow NNS 40404 721 45 and and CC 40404 721 46 sharp sharp JJ 40404 721 47 ridges ridge NNS 40404 721 48 . . . 40404 722 1 Great great JJ 40404 722 2 sink sink NN 40404 722 3 holes hole NNS 40404 722 4 , , , 40404 722 5 some some DT 40404 722 6 of of IN 40404 722 7 them -PRON- PRP 40404 722 8 six six CD 40404 722 9 hundred hundred CD 40404 722 10 feet foot NNS 40404 722 11 deep deep JJ 40404 722 12 and and CC 40404 722 13 more more RBR 40404 722 14 , , , 40404 722 15 pockmark pockmark VB 40404 722 16 the the DT 40404 722 17 surface surface NN 40404 722 18 of of IN 40404 722 19 the the DT 40404 722 20 land land NN 40404 722 21 . . . 40404 723 1 The the DT 40404 723 2 drainage drainage NN 40404 723 3 is be VBZ 40404 723 4 chiefly chiefly RB 40404 723 5 subterranean subterranean JJ 40404 723 6 . . . 40404 724 1 Surface surface NN 40404 724 2 streams stream NNS 40404 724 3 are be VBP 40404 724 4 rare rare JJ 40404 724 5 and and CC 40404 724 6 a a DT 40404 724 7 portion portion NN 40404 724 8 of of IN 40404 724 9 their -PRON- PRP$ 40404 724 10 courses course NNS 40404 724 11 is be VBZ 40404 724 12 often often RB 40404 724 13 under under IN 40404 724 14 ground ground NN 40404 724 15 . . . 40404 725 1 Fragmentary fragmentary JJ 40404 725 2 valleys valley NNS 40404 725 3 come come VBP 40404 725 4 suddenly suddenly RB 40404 725 5 to to IN 40404 725 6 an an DT 40404 725 7 end end NN 40404 725 8 at at IN 40404 725 9 walls wall NNS 40404 725 10 of of IN 40404 725 11 rock rock NN 40404 725 12 where where WRB 40404 725 13 the the DT 40404 725 14 rivers river NNS 40404 725 15 which which WDT 40404 725 16 occupy occupy VBP 40404 725 17 the the DT 40404 725 18 valleys valley NNS 40404 725 19 plunge plunge VBP 40404 725 20 into into IN 40404 725 21 dark dark JJ 40404 725 22 tunnels tunnel NNS 40404 725 23 to to TO 40404 725 24 reappear reappear VB 40404 725 25 some some DT 40404 725 26 miles mile NNS 40404 725 27 away away RB 40404 725 28 . . . 40404 726 1 Ground ground NN 40404 726 2 water water NN 40404 726 3 stands stand VBZ 40404 726 4 so so RB 40404 726 5 far far RB 40404 726 6 below below IN 40404 726 7 the the DT 40404 726 8 surface surface NN 40404 726 9 that that WDT 40404 726 10 it -PRON- PRP 40404 726 11 can can MD 40404 726 12 not not RB 40404 726 13 be be VB 40404 726 14 reached reach VBN 40404 726 15 by by IN 40404 726 16 wells well NNS 40404 726 17 , , , 40404 726 18 and and CC 40404 726 19 the the DT 40404 726 20 inhabitants inhabitant NNS 40404 726 21 depend depend VBP 40404 726 22 on on IN 40404 726 23 rain rain NN 40404 726 24 water water NN 40404 726 25 stored store VBN 40404 726 26 for for IN 40404 726 27 household household NN 40404 726 28 uses use NNS 40404 726 29 . . . 40404 727 1 The the DT 40404 727 2 finest fine JJS 40404 727 3 cavern cavern NN 40404 727 4 of of IN 40404 727 5 Europe Europe NNP 40404 727 6 , , , 40404 727 7 the the DT 40404 727 8 Adelsberg Adelsberg NNP 40404 727 9 Grotto Grotto NNP 40404 727 10 , , , 40404 727 11 is be VBZ 40404 727 12 in in IN 40404 727 13 this this DT 40404 727 14 region region NN 40404 727 15 . . . 40404 728 1 Karst Karst NNP 40404 728 2 , , , 40404 728 3 the the DT 40404 728 4 name name NN 40404 728 5 of of IN 40404 728 6 a a DT 40404 728 7 part part NN 40404 728 8 of of IN 40404 728 9 this this DT 40404 728 10 country country NN 40404 728 11 , , , 40404 728 12 is be VBZ 40404 728 13 now now RB 40404 728 14 used use VBN 40404 728 15 to to TO 40404 728 16 designate designate VB 40404 728 17 any any DT 40404 728 18 region region NN 40404 728 19 or or CC 40404 728 20 landscape landscape NN 40404 728 21 thus thus RB 40404 728 22 sculptured sculpture VBN 40404 728 23 by by IN 40404 728 24 the the DT 40404 728 25 chemical chemical NN 40404 728 26 action action NN 40404 728 27 of of IN 40404 728 28 surface surface NN 40404 728 29 and and CC 40404 728 30 ground ground NN 40404 728 31 water water NN 40404 728 32 . . . 40404 729 1 We -PRON- PRP 40404 729 2 must must MD 40404 729 3 remember remember VB 40404 729 4 that that IN 40404 729 5 Karst Karst NNP 40404 729 6 regions region NNS 40404 729 7 are be VBP 40404 729 8 rare rare JJ 40404 729 9 , , , 40404 729 10 and and CC 40404 729 11 striking strike VBG 40404 729 12 as as IN 40404 729 13 is be VBZ 40404 729 14 the the DT 40404 729 15 work work NN 40404 729 16 of of IN 40404 729 17 their -PRON- PRP$ 40404 729 18 subterranean subterranean JJ 40404 729 19 streams stream NNS 40404 729 20 , , , 40404 729 21 it -PRON- PRP 40404 729 22 is be VBZ 40404 729 23 far far RB 40404 729 24 less less RBR 40404 729 25 important important JJ 40404 729 26 than than IN 40404 729 27 the the DT 40404 729 28 work work NN 40404 729 29 done do VBN 40404 729 30 by by IN 40404 729 31 the the DT 40404 729 32 sheets sheet NNS 40404 729 33 of of IN 40404 729 34 underground underground JJ 40404 729 35 water water NN 40404 729 36 slowly slowly RB 40404 729 37 seeping seep VBG 40404 729 38 through through IN 40404 729 39 all all DT 40404 729 40 subsoils subsoil NNS 40404 729 41 and and CC 40404 729 42 porous porous JJ 40404 729 43 rocks rock NNS 40404 729 44 in in IN 40404 729 45 other other JJ 40404 729 46 regions region NNS 40404 729 47 . . . 40404 730 1 Even even RB 40404 730 2 when when WRB 40404 730 3 gathered gather VBN 40404 730 4 into into IN 40404 730 5 definite definite JJ 40404 730 6 channels channel NNS 40404 730 7 , , , 40404 730 8 ground ground NN 40404 730 9 water water NN 40404 730 10 does do VBZ 40404 730 11 not not RB 40404 730 12 have have VB 40404 730 13 the the DT 40404 730 14 erosive erosive JJ 40404 730 15 power power NN 40404 730 16 of of IN 40404 730 17 surface surface NN 40404 730 18 streams stream NNS 40404 730 19 , , , 40404 730 20 since since IN 40404 730 21 it -PRON- PRP 40404 730 22 carries carry VBZ 40404 730 23 with with IN 40404 730 24 it -PRON- PRP 40404 730 25 little little JJ 40404 730 26 or or CC 40404 730 27 no no DT 40404 730 28 rock rock NN 40404 730 29 waste waste NN 40404 730 30 . . . 40404 731 1 Regions region NNS 40404 731 2 whose whose WP$ 40404 731 3 underground underground JJ 40404 731 4 drainage drainage NN 40404 731 5 is be VBZ 40404 731 6 so so RB 40404 731 7 perfect perfect JJ 40404 731 8 that that IN 40404 731 9 the the DT 40404 731 10 development development NN 40404 731 11 of of IN 40404 731 12 surface surface NN 40404 731 13 streams stream NNS 40404 731 14 has have VBZ 40404 731 15 been be VBN 40404 731 16 retarded retard VBN 40404 731 17 or or CC 40404 731 18 prevented prevent VBN 40404 731 19 escape escape NN 40404 731 20 to to IN 40404 731 21 a a DT 40404 731 22 large large JJ 40404 731 23 extent extent NN 40404 731 24 the the DT 40404 731 25 leveling leveling NN 40404 731 26 action action NN 40404 731 27 of of IN 40404 731 28 surface surface NN 40404 731 29 running running NN 40404 731 30 waters water NNS 40404 731 31 , , , 40404 731 32 and and CC 40404 731 33 may may MD 40404 731 34 therefore therefore RB 40404 731 35 stand stand VB 40404 731 36 higher high JJR 40404 731 37 than than IN 40404 731 38 the the DT 40404 731 39 surrounding surround VBG 40404 731 40 country country NN 40404 731 41 . . . 40404 732 1 The the DT 40404 732 2 hill hill NN 40404 732 3 honeycombed honeycomb VBN 40404 732 4 by by IN 40404 732 5 Luray Luray NNP 40404 732 6 Cavern Cavern NNP 40404 732 7 , , , 40404 732 8 Virginia Virginia NNP 40404 732 9 , , , 40404 732 10 has have VBZ 40404 732 11 been be VBN 40404 732 12 attributed attribute VBN 40404 732 13 to to IN 40404 732 14 this this DT 40404 732 15 cause cause NN 40404 732 16 . . . 40404 733 1 [ [ -LRB- 40404 733 2 Illustration illustration NN 40404 733 3 : : : 40404 733 4 Fig Fig NNP 40404 733 5 . . . 40404 734 1 33 33 CD 40404 734 2 . . . 40404 735 1 Stalactites Stalactites NNPS 40404 735 2 and and CC 40404 735 3 Stalagmites Stalagmites NNPS 40404 735 4 , , , 40404 735 5 Marengo Marengo NNP 40404 735 6 Cavern Cavern NNP 40404 735 7 , , , 40404 735 8 Indiana Indiana NNP 40404 735 9 ] ] -RRB- 40404 735 10 = = NFP 40404 735 11 Cavern cavern JJ 40404 735 12 deposits.= deposits.= NN 40404 735 13 Even even RB 40404 735 14 in in IN 40404 735 15 the the DT 40404 735 16 zone zone NN 40404 735 17 of of IN 40404 735 18 solution solution NN 40404 735 19 water water NN 40404 735 20 may may MD 40404 735 21 under under IN 40404 735 22 certain certain JJ 40404 735 23 circumstances circumstance NNS 40404 735 24 deposit deposit VBP 40404 735 25 as as RB 40404 735 26 well well RB 40404 735 27 as as IN 40404 735 28 erode erode NNP 40404 735 29 . . . 40404 736 1 As as IN 40404 736 2 it -PRON- PRP 40404 736 3 trickles trickle VBZ 40404 736 4 from from IN 40404 736 5 the the DT 40404 736 6 roof roof NN 40404 736 7 of of IN 40404 736 8 caverns cavern NNS 40404 736 9 , , , 40404 736 10 the the DT 40404 736 11 lime lime NN 40404 736 12 carbonate carbonate NN 40404 736 13 which which WDT 40404 736 14 it -PRON- PRP 40404 736 15 has have VBZ 40404 736 16 taken take VBN 40404 736 17 into into IN 40404 736 18 solution solution NN 40404 736 19 from from IN 40404 736 20 the the DT 40404 736 21 layers layer NNS 40404 736 22 of of IN 40404 736 23 limestone limestone NN 40404 736 24 above above RB 40404 736 25 is be VBZ 40404 736 26 deposited deposit VBN 40404 736 27 by by IN 40404 736 28 evaporation evaporation NN 40404 736 29 in in IN 40404 736 30 the the DT 40404 736 31 air air NN 40404 736 32 in in IN 40404 736 33 icicle icicle NN 40404 736 34 - - HYPH 40404 736 35 like like JJ 40404 736 36 pendants pendant NNS 40404 736 37 called call VBN 40404 736 38 _ _ NNP 40404 736 39 stalactites stalactite NNS 40404 736 40 _ _ NNP 40404 736 41 . . . 40404 737 1 As as IN 40404 737 2 the the DT 40404 737 3 drops drop NNS 40404 737 4 splash splash VBP 40404 737 5 on on IN 40404 737 6 the the DT 40404 737 7 floor floor NN 40404 737 8 there there EX 40404 737 9 are be VBP 40404 737 10 built build VBN 40404 737 11 up up RP 40404 737 12 in in IN 40404 737 13 the the DT 40404 737 14 same same JJ 40404 737 15 way way NN 40404 737 16 thicker thick JJR 40404 737 17 masses masse NNS 40404 737 18 called call VBD 40404 737 19 _ _ NNP 40404 737 20 stalagmites stalagmite VBZ 40404 737 21 _ _ NNP 40404 737 22 , , , 40404 737 23 which which WDT 40404 737 24 may may MD 40404 737 25 grow grow VB 40404 737 26 to to TO 40404 737 27 join join VB 40404 737 28 the the DT 40404 737 29 stalactites stalactite NNS 40404 737 30 above above IN 40404 737 31 , , , 40404 737 32 forming form VBG 40404 737 33 pillars pillar NNS 40404 737 34 . . . 40404 738 1 A a DT 40404 738 2 stalagmitic stalagmitic JJ 40404 738 3 crust crust NN 40404 738 4 often often RB 40404 738 5 seals seal VBZ 40404 738 6 with with IN 40404 738 7 rock rock NN 40404 738 8 the the DT 40404 738 9 earth earth NN 40404 738 10 which which WDT 40404 738 11 accumulates accumulate VBZ 40404 738 12 in in IN 40404 738 13 caverns cavern NNS 40404 738 14 , , , 40404 738 15 together together RB 40404 738 16 with with IN 40404 738 17 whatever whatever WDT 40404 738 18 relics relic NNS 40404 738 19 of of IN 40404 738 20 cave cave NN 40404 738 21 dwellers dweller NNS 40404 738 22 , , , 40404 738 23 either either CC 40404 738 24 animals animal NNS 40404 738 25 or or CC 40404 738 26 men man NNS 40404 738 27 , , , 40404 738 28 it -PRON- PRP 40404 738 29 may may MD 40404 738 30 contain contain VB 40404 738 31 . . . 40404 739 1 Can Can MD 40404 739 2 you -PRON- PRP 40404 739 3 explain explain VB 40404 739 4 why why WRB 40404 739 5 slender slender NN 40404 739 6 stalactites stalactite NNS 40404 739 7 formed form VBN 40404 739 8 by by IN 40404 739 9 the the DT 40404 739 10 drip drip NN 40404 739 11 of of IN 40404 739 12 single single JJ 40404 739 13 drops drop NNS 40404 739 14 are be VBP 40404 739 15 often often RB 40404 739 16 hollow hollow JJ 40404 739 17 pipes pipe NNS 40404 739 18 ? ? . 40404 740 1 = = NFP 40404 740 2 The the DT 40404 740 3 zone zone NN 40404 740 4 of of IN 40404 740 5 cementation.= cementation.= NNP 40404 740 6 With with IN 40404 740 7 increasing increase VBG 40404 740 8 depth depth NN 40404 740 9 subterranean subterranean JJ 40404 740 10 water water NN 40404 740 11 becomes become VBZ 40404 740 12 more more JJR 40404 740 13 and and CC 40404 740 14 more more RBR 40404 740 15 sluggish sluggish JJ 40404 740 16 in in IN 40404 740 17 its -PRON- PRP$ 40404 740 18 movements movement NNS 40404 740 19 and and CC 40404 740 20 more more JJR 40404 740 21 and and CC 40404 740 22 more more RBR 40404 740 23 highly highly RB 40404 740 24 charged charge VBN 40404 740 25 with with IN 40404 740 26 minerals mineral NNS 40404 740 27 dissolved dissolve VBN 40404 740 28 from from IN 40404 740 29 the the DT 40404 740 30 rocks rock NNS 40404 740 31 above above RB 40404 740 32 . . . 40404 741 1 At at IN 40404 741 2 such such JJ 40404 741 3 depths depth NNS 40404 741 4 it -PRON- PRP 40404 741 5 deposits deposit VBZ 40404 741 6 these these DT 40404 741 7 minerals mineral NNS 40404 741 8 in in IN 40404 741 9 the the DT 40404 741 10 pores pore NNS 40404 741 11 of of IN 40404 741 12 rocks rock NNS 40404 741 13 , , , 40404 741 14 cementing cement VBG 40404 741 15 their -PRON- PRP$ 40404 741 16 grains grain NNS 40404 741 17 together together RB 40404 741 18 , , , 40404 741 19 and and CC 40404 741 20 in in IN 40404 741 21 crevices crevice NNS 40404 741 22 and and CC 40404 741 23 fissures fissure NNS 40404 741 24 , , , 40404 741 25 forming form VBG 40404 741 26 mineral mineral NN 40404 741 27 veins vein NNS 40404 741 28 . . . 40404 742 1 Thus thus RB 40404 742 2 below below IN 40404 742 3 the the DT 40404 742 4 zone zone NN 40404 742 5 of of IN 40404 742 6 solution solution NN 40404 742 7 where where WRB 40404 742 8 the the DT 40404 742 9 work work NN 40404 742 10 of of IN 40404 742 11 water water NN 40404 742 12 is be VBZ 40404 742 13 to to TO 40404 742 14 dissolve dissolve VB 40404 742 15 , , , 40404 742 16 lies lie VBZ 40404 742 17 the the DT 40404 742 18 zone zone NN 40404 742 19 of of IN 40404 742 20 cementation cementation NN 40404 742 21 where where WRB 40404 742 22 its -PRON- PRP$ 40404 742 23 work work NN 40404 742 24 is be VBZ 40404 742 25 chemical chemical NN 40404 742 26 deposit deposit NN 40404 742 27 . . . 40404 743 1 A a DT 40404 743 2 part part NN 40404 743 3 of of IN 40404 743 4 the the DT 40404 743 5 invisible invisible JJ 40404 743 6 load load NN 40404 743 7 of of IN 40404 743 8 waste waste NN 40404 743 9 is be VBZ 40404 743 10 thus thus RB 40404 743 11 transferred transfer VBN 40404 743 12 from from IN 40404 743 13 rocks rock NNS 40404 743 14 near near IN 40404 743 15 the the DT 40404 743 16 surface surface NN 40404 743 17 to to IN 40404 743 18 those those DT 40404 743 19 at at IN 40404 743 20 greater great JJR 40404 743 21 depths depth NNS 40404 743 22 . . . 40404 744 1 As as IN 40404 744 2 the the DT 40404 744 3 land land NN 40404 744 4 surface surface NN 40404 744 5 is be VBZ 40404 744 6 gradually gradually RB 40404 744 7 lowered lower VBN 40404 744 8 by by IN 40404 744 9 weathering weather VBG 40404 744 10 and and CC 40404 744 11 the the DT 40404 744 12 work work NN 40404 744 13 of of IN 40404 744 14 rain rain NN 40404 744 15 and and CC 40404 744 16 streams stream NNS 40404 744 17 , , , 40404 744 18 rocks rock NNS 40404 744 19 which which WDT 40404 744 20 have have VBP 40404 744 21 lain lie VBN 40404 744 22 deep deep RB 40404 744 23 within within IN 40404 744 24 the the DT 40404 744 25 zone zone NN 40404 744 26 of of IN 40404 744 27 cementation cementation NN 40404 744 28 are be VBP 40404 744 29 brought bring VBN 40404 744 30 within within IN 40404 744 31 the the DT 40404 744 32 zone zone NN 40404 744 33 of of IN 40404 744 34 solution solution NN 40404 744 35 . . . 40404 745 1 Thus thus RB 40404 745 2 there there EX 40404 745 3 are be VBP 40404 745 4 exposed expose VBN 40404 745 5 to to TO 40404 745 6 view view VB 40404 745 7 limestones limestone NNS 40404 745 8 , , , 40404 745 9 whose whose WP$ 40404 745 10 cracks crack NNS 40404 745 11 were be VBD 40404 745 12 filled fill VBN 40404 745 13 with with IN 40404 745 14 calcite calcite NN 40404 745 15 ( ( -LRB- 40404 745 16 crystallized crystallize VBN 40404 745 17 carbonate carbonate NN 40404 745 18 of of IN 40404 745 19 lime lime NN 40404 745 20 ) ) -RRB- 40404 745 21 , , , 40404 745 22 with with IN 40404 745 23 quartz quartz NN 40404 745 24 or or CC 40404 745 25 other other JJ 40404 745 26 minerals mineral NNS 40404 745 27 , , , 40404 745 28 and and CC 40404 745 29 sandstones sandstone VBZ 40404 745 30 whose whose WP$ 40404 745 31 grains grain NNS 40404 745 32 were be VBD 40404 745 33 well well RB 40404 745 34 cemented cement VBN 40404 745 35 many many JJ 40404 745 36 feet foot NNS 40404 745 37 below below IN 40404 745 38 the the DT 40404 745 39 surface surface NN 40404 745 40 . . . 40404 746 1 = = NFP 40404 746 2 Cavity cavity NN 40404 746 3 filling.= filling.= CD 40404 746 4 Small small JJ 40404 746 5 cavities cavity NNS 40404 746 6 in in IN 40404 746 7 the the DT 40404 746 8 rocks rock NNS 40404 746 9 are be VBP 40404 746 10 often often RB 40404 746 11 found find VBN 40404 746 12 more more RBR 40404 746 13 or or CC 40404 746 14 less less RBR 40404 746 15 completely completely RB 40404 746 16 filled fill VBN 40404 746 17 with with IN 40404 746 18 minerals mineral NNS 40404 746 19 deposited deposit VBN 40404 746 20 from from IN 40404 746 21 solution solution NN 40404 746 22 by by IN 40404 746 23 water water NN 40404 746 24 in in IN 40404 746 25 its -PRON- PRP$ 40404 746 26 constant constant JJ 40404 746 27 circulation circulation NN 40404 746 28 underground underground RB 40404 746 29 . . . 40404 747 1 The the DT 40404 747 2 process process NN 40404 747 3 may may MD 40404 747 4 be be VB 40404 747 5 illustrated illustrate VBN 40404 747 6 by by IN 40404 747 7 the the DT 40404 747 8 deposit deposit NN 40404 747 9 of of IN 40404 747 10 salt salt NN 40404 747 11 crystals crystal NNS 40404 747 12 in in IN 40404 747 13 a a DT 40404 747 14 cup cup NN 40404 747 15 of of IN 40404 747 16 evaporating evaporate VBG 40404 747 17 brine brine NN 40404 747 18 , , , 40404 747 19 but but CC 40404 747 20 in in IN 40404 747 21 the the DT 40404 747 22 latter latter JJ 40404 747 23 instance instance NN 40404 747 24 the the DT 40404 747 25 solution solution NN 40404 747 26 is be VBZ 40404 747 27 not not RB 40404 747 28 renewed renew VBN 40404 747 29 as as IN 40404 747 30 in in IN 40404 747 31 the the DT 40404 747 32 case case NN 40404 747 33 of of IN 40404 747 34 cavities cavity NNS 40404 747 35 in in IN 40404 747 36 the the DT 40404 747 37 rocks rock NNS 40404 747 38 . . . 40404 748 1 A a DT 40404 748 2 cavity cavity NN 40404 748 3 thus thus RB 40404 748 4 lined line VBD 40404 748 5 with with IN 40404 748 6 inward inward RB 40404 748 7 - - HYPH 40404 748 8 pointing point VBG 40404 748 9 crystals crystal NNS 40404 748 10 is be VBZ 40404 748 11 called call VBN 40404 748 12 a a DT 40404 748 13 _ _ NNP 40404 748 14 geode geode NN 40404 748 15 _ _ NNP 40404 748 16 . . . 40404 749 1 = = NFP 40404 749 2 Concretions.= Concretions.= NNP 40404 749 3 Ground Ground NNP 40404 749 4 water water NN 40404 749 5 seeping seep VBG 40404 749 6 through through IN 40404 749 7 the the DT 40404 749 8 pores pore NNS 40404 749 9 of of IN 40404 749 10 rocks rock NNS 40404 749 11 may may MD 40404 749 12 gather gather VB 40404 749 13 minerals mineral NNS 40404 749 14 disseminated disseminate VBN 40404 749 15 throughout throughout IN 40404 749 16 them -PRON- PRP 40404 749 17 into into IN 40404 749 18 nodular nodular JJ 40404 749 19 masses masse NNS 40404 749 20 called call VBN 40404 749 21 concretions concretion NNS 40404 749 22 . . . 40404 750 1 Thus thus RB 40404 750 2 silica silica NN 40404 750 3 disseminated disseminate VBN 40404 750 4 through through IN 40404 750 5 limestone limestone NN 40404 750 6 is be VBZ 40404 750 7 gathered gather VBN 40404 750 8 into into IN 40404 750 9 nodules nodule NNS 40404 750 10 of of IN 40404 750 11 flint flint NN 40404 750 12 . . . 40404 751 1 While while IN 40404 751 2 geodes geode NNS 40404 751 3 grow grow VBP 40404 751 4 from from IN 40404 751 5 the the DT 40404 751 6 outside outside JJ 40404 751 7 inwards inward NNS 40404 751 8 , , , 40404 751 9 concretions concretion NNS 40404 751 10 grow grow VBP 40404 751 11 outwards outward NNS 40404 751 12 from from IN 40404 751 13 the the DT 40404 751 14 center center NN 40404 751 15 . . . 40404 752 1 Nor nor CC 40404 752 2 are be VBP 40404 752 3 they -PRON- PRP 40404 752 4 formed form VBN 40404 752 5 in in IN 40404 752 6 already already RB 40404 752 7 existing exist VBG 40404 752 8 cavities cavity NNS 40404 752 9 as as IN 40404 752 10 are be VBP 40404 752 11 geodes geode NNS 40404 752 12 . . . 40404 753 1 In in IN 40404 753 2 soft soft JJ 40404 753 3 clays clay NNS 40404 753 4 concretions concretion NNS 40404 753 5 may may MD 40404 753 6 , , , 40404 753 7 as as IN 40404 753 8 they -PRON- PRP 40404 753 9 grow grow VBP 40404 753 10 , , , 40404 753 11 press press VB 40404 753 12 the the DT 40404 753 13 clay clay NN 40404 753 14 aside aside RB 40404 753 15 . . . 40404 754 1 In in IN 40404 754 2 many many JJ 40404 754 3 other other JJ 40404 754 4 rocks rock NNS 40404 754 5 concretions concretion NNS 40404 754 6 are be VBP 40404 754 7 made make VBN 40404 754 8 by by IN 40404 754 9 the the DT 40404 754 10 process process NN 40404 754 11 of of IN 40404 754 12 _ _ NNP 40404 754 13 replacement replacement NN 40404 754 14 _ _ NNP 40404 754 15 . . . 40404 755 1 Molecule molecule VB 40404 755 2 by by IN 40404 755 3 molecule molecule VB 40404 755 4 the the DT 40404 755 5 rock rock NN 40404 755 6 is be VBZ 40404 755 7 removed remove VBN 40404 755 8 and and CC 40404 755 9 the the DT 40404 755 10 mineral mineral NN 40404 755 11 of of IN 40404 755 12 the the DT 40404 755 13 concretion concretion NN 40404 755 14 substituted substitute VBN 40404 755 15 in in IN 40404 755 16 its -PRON- PRP$ 40404 755 17 place place NN 40404 755 18 . . . 40404 756 1 The the DT 40404 756 2 concretion concretion NN 40404 756 3 may may MD 40404 756 4 in in IN 40404 756 5 this this DT 40404 756 6 way way NN 40404 756 7 preserve preserve VB 40404 756 8 intact intact JJ 40404 756 9 the the DT 40404 756 10 lamination lamination NN 40404 756 11 lines line NNS 40404 756 12 or or CC 40404 756 13 other other JJ 40404 756 14 structures structure NNS 40404 756 15 of of IN 40404 756 16 the the DT 40404 756 17 rock rock NN 40404 756 18 ( ( -LRB- 40404 756 19 Fig fig NN 40404 756 20 . . . 40404 757 1 34 34 CD 40404 757 2 ) ) -RRB- 40404 757 3 . . . 40404 758 1 Clays clay NNS 40404 758 2 and and CC 40404 758 3 shales shale NNS 40404 758 4 often often RB 40404 758 5 contain contain VBP 40404 758 6 concretions concretion NNS 40404 758 7 of of IN 40404 758 8 lime lime NN 40404 758 9 carbonate carbonate NN 40404 758 10 , , , 40404 758 11 of of IN 40404 758 12 iron iron NN 40404 758 13 carbonate carbonate NN 40404 758 14 , , , 40404 758 15 or or CC 40404 758 16 of of IN 40404 758 17 iron iron NN 40404 758 18 sulphide sulphide NN 40404 758 19 . . . 40404 759 1 Some some DT 40404 759 2 fossil fossil NN 40404 759 3 , , , 40404 759 4 such such JJ 40404 759 5 as as IN 40404 759 6 a a DT 40404 759 7 leaf leaf NN 40404 759 8 or or CC 40404 759 9 shell shell NN 40404 759 10 , , , 40404 759 11 frequently frequently RB 40404 759 12 forms form VBZ 40404 759 13 the the DT 40404 759 14 nucleus nucleus NN 40404 759 15 around around IN 40404 759 16 which which WDT 40404 759 17 the the DT 40404 759 18 concretion concretion NN 40404 759 19 grows grow VBZ 40404 759 20 . . . 40404 760 1 Why why WRB 40404 760 2 are be VBP 40404 760 3 building build VBG 40404 760 4 stones stone NNS 40404 760 5 more more RBR 40404 760 6 easily easily RB 40404 760 7 worked work VBN 40404 760 8 when when WRB 40404 760 9 " " `` 40404 760 10 green green JJ 40404 760 11 " " '' 40404 760 12 than than IN 40404 760 13 after after IN 40404 760 14 their -PRON- PRP$ 40404 760 15 quarry quarry NN 40404 760 16 water water NN 40404 760 17 has have VBZ 40404 760 18 dried dry VBN 40404 760 19 out out RP 40404 760 20 ? ? . 40404 761 1 [ [ -LRB- 40404 761 2 Illustration illustration NN 40404 761 3 : : : 40404 761 4 Fig Fig NNP 40404 761 5 . . . 40404 762 1 34 34 CD 40404 762 2 . . . 40404 763 1 Concretions concretion NNS 40404 763 2 in in IN 40404 763 3 Sandstone Sandstone NNP 40404 763 4 , , , 40404 763 5 Wyoming Wyoming NNP 40404 763 6 ] ] -RRB- 40404 763 7 = = NFP 40404 763 8 Deposits deposit NNS 40404 763 9 of of IN 40404 763 10 ground ground NN 40404 763 11 water water NN 40404 763 12 in in IN 40404 763 13 arid arid NNP 40404 763 14 regions.= regions.= NNP 40404 763 15 In in IN 40404 763 16 arid arid NNP 40404 763 17 lands land NNS 40404 763 18 where where WRB 40404 763 19 ground ground NN 40404 763 20 water water NN 40404 763 21 is be VBZ 40404 763 22 drawn draw VBN 40404 763 23 by by IN 40404 763 24 capillarity capillarity NN 40404 763 25 to to IN 40404 763 26 the the DT 40404 763 27 surface surface NN 40404 763 28 and and CC 40404 763 29 there there EX 40404 763 30 evaporates evaporate VBZ 40404 763 31 , , , 40404 763 32 it -PRON- PRP 40404 763 33 leaves leave VBZ 40404 763 34 as as IN 40404 763 35 surface surface NN 40404 763 36 incrustations incrustation NNS 40404 763 37 the the DT 40404 763 38 minerals mineral NNS 40404 763 39 held hold VBN 40404 763 40 in in IN 40404 763 41 solution solution NN 40404 763 42 . . . 40404 764 1 White white JJ 40404 764 2 limy limy NN 40404 764 3 incrustations incrustation NNS 40404 764 4 of of IN 40404 764 5 this this DT 40404 764 6 nature nature NN 40404 764 7 cover cover VBP 40404 764 8 considerable considerable JJ 40404 764 9 tracts tract NNS 40404 764 10 in in IN 40404 764 11 northern northern JJ 40404 764 12 Mexico Mexico NNP 40404 764 13 . . . 40404 765 1 Evaporating evaporate VBG 40404 765 2 beneath beneath IN 40404 765 3 the the DT 40404 765 4 surface surface NN 40404 765 5 , , , 40404 765 6 ground ground NN 40404 765 7 water water NN 40404 765 8 may may MD 40404 765 9 deposit deposit VB 40404 765 10 a a DT 40404 765 11 limy limy JJ 40404 765 12 cement cement NN 40404 765 13 in in IN 40404 765 14 beds bed NNS 40404 765 15 of of IN 40404 765 16 loose loose JJ 40404 765 17 sand sand NN 40404 765 18 and and CC 40404 765 19 gravel gravel NN 40404 765 20 . . . 40404 766 1 Such such JJ 40404 766 2 firmly firmly RB 40404 766 3 cemented cement VBN 40404 766 4 layers layer NNS 40404 766 5 are be VBP 40404 766 6 not not RB 40404 766 7 uncommon uncommon JJ 40404 766 8 in in IN 40404 766 9 western western JJ 40404 766 10 Kansas Kansas NNP 40404 766 11 and and CC 40404 766 12 Nebraska Nebraska NNP 40404 766 13 , , , 40404 766 14 where where WRB 40404 766 15 they -PRON- PRP 40404 766 16 are be VBP 40404 766 17 known know VBN 40404 766 18 as as IN 40404 766 19 " " `` 40404 766 20 mortar mortar NN 40404 766 21 beds bed NNS 40404 766 22 . . . 40404 766 23 " " '' 40404 767 1 = = NFP 40404 767 2 Thermal thermal JJ 40404 767 3 springs.= springs.= NN 40404 767 4 While while IN 40404 767 5 the the DT 40404 767 6 lower low JJR 40404 767 7 limit limit NN 40404 767 8 of of IN 40404 767 9 surface surface NN 40404 767 10 drainage drainage NN 40404 767 11 is be VBZ 40404 767 12 sea sea NN 40404 767 13 level level NN 40404 767 14 , , , 40404 767 15 subterranean subterranean JJ 40404 767 16 water water NN 40404 767 17 circulates circulate NNS 40404 767 18 much much RB 40404 767 19 below below IN 40404 767 20 that that DT 40404 767 21 depth depth NN 40404 767 22 , , , 40404 767 23 and and CC 40404 767 24 is be VBZ 40404 767 25 brought bring VBN 40404 767 26 again again RB 40404 767 27 to to IN 40404 767 28 the the DT 40404 767 29 surface surface NN 40404 767 30 by by IN 40404 767 31 hydrostatic hydrostatic JJ 40404 767 32 pressure pressure NN 40404 767 33 . . . 40404 768 1 In in IN 40404 768 2 many many JJ 40404 768 3 instances instance NNS 40404 768 4 springs spring NNS 40404 768 5 have have VBP 40404 768 6 a a DT 40404 768 7 higher high JJR 40404 768 8 temperature temperature NN 40404 768 9 than than IN 40404 768 10 the the DT 40404 768 11 average average JJ 40404 768 12 annual annual JJ 40404 768 13 temperature temperature NN 40404 768 14 of of IN 40404 768 15 the the DT 40404 768 16 region region NN 40404 768 17 , , , 40404 768 18 and and CC 40404 768 19 are be VBP 40404 768 20 then then RB 40404 768 21 known know VBN 40404 768 22 as as IN 40404 768 23 thermal thermal JJ 40404 768 24 springs spring NNS 40404 768 25 . . . 40404 769 1 In in IN 40404 769 2 regions region NNS 40404 769 3 of of IN 40404 769 4 present present JJ 40404 769 5 or or CC 40404 769 6 recent recent JJ 40404 769 7 volcanic volcanic JJ 40404 769 8 activity activity NN 40404 769 9 , , , 40404 769 10 such such JJ 40404 769 11 as as IN 40404 769 12 the the DT 40404 769 13 Yellowstone Yellowstone NNP 40404 769 14 National National NNP 40404 769 15 Park Park NNP 40404 769 16 , , , 40404 769 17 we -PRON- PRP 40404 769 18 may may MD 40404 769 19 believe believe VB 40404 769 20 that that IN 40404 769 21 the the DT 40404 769 22 heat heat NN 40404 769 23 of of IN 40404 769 24 thermal thermal JJ 40404 769 25 springs spring NNS 40404 769 26 is be VBZ 40404 769 27 derived derive VBN 40404 769 28 from from IN 40404 769 29 uncooled uncooled JJ 40404 769 30 lavas lavas NN 40404 769 31 , , , 40404 769 32 perhaps perhaps RB 40404 769 33 not not RB 40404 769 34 far far RB 40404 769 35 below below IN 40404 769 36 the the DT 40404 769 37 surface surface NN 40404 769 38 . . . 40404 770 1 But but CC 40404 770 2 when when WRB 40404 770 3 hot hot JJ 40404 770 4 springs spring NNS 40404 770 5 occur occur VBP 40404 770 6 at at IN 40404 770 7 a a DT 40404 770 8 distance distance NN 40404 770 9 of of IN 40404 770 10 hundreds hundred NNS 40404 770 11 of of IN 40404 770 12 miles mile NNS 40404 770 13 from from IN 40404 770 14 any any DT 40404 770 15 volcano volcano NN 40404 770 16 , , , 40404 770 17 as as IN 40404 770 18 in in IN 40404 770 19 the the DT 40404 770 20 case case NN 40404 770 21 of of IN 40404 770 22 the the DT 40404 770 23 hot hot JJ 40404 770 24 springs spring NNS 40404 770 25 of of IN 40404 770 26 Bath Bath NNP 40404 770 27 , , , 40404 770 28 England England NNP 40404 770 29 , , , 40404 770 30 it -PRON- PRP 40404 770 31 is be VBZ 40404 770 32 probable probable JJ 40404 770 33 that that IN 40404 770 34 their -PRON- PRP$ 40404 770 35 waters water NNS 40404 770 36 have have VBP 40404 770 37 risen rise VBN 40404 770 38 from from IN 40404 770 39 the the DT 40404 770 40 heated heated JJ 40404 770 41 rocks rock NNS 40404 770 42 of of IN 40404 770 43 the the DT 40404 770 44 earth earth NN 40404 770 45 's 's POS 40404 770 46 interior interior NN 40404 770 47 . . . 40404 771 1 The the DT 40404 771 2 springs spring NNS 40404 771 3 of of IN 40404 771 4 Bath Bath NNP 40404 771 5 have have VBP 40404 771 6 a a DT 40404 771 7 temperature temperature NN 40404 771 8 of of IN 40404 771 9 120 120 CD 40404 771 10 ° ° NNS 40404 771 11 F. F. NNP 40404 771 12 , , , 40404 771 13 70 70 CD 40404 771 14 ° ° NNS 40404 771 15 above above IN 40404 771 16 the the DT 40404 771 17 average average JJ 40404 771 18 annual annual JJ 40404 771 19 temperature temperature NN 40404 771 20 of of IN 40404 771 21 the the DT 40404 771 22 place place NN 40404 771 23 . . . 40404 772 1 If if IN 40404 772 2 we -PRON- PRP 40404 772 3 assume assume VBP 40404 772 4 that that IN 40404 772 5 the the DT 40404 772 6 rate rate NN 40404 772 7 of of IN 40404 772 8 increase increase NN 40404 772 9 in in IN 40404 772 10 the the DT 40404 772 11 earth earth NN 40404 772 12 's 's POS 40404 772 13 internal internal JJ 40404 772 14 heat heat NN 40404 772 15 is be VBZ 40404 772 16 here here RB 40404 772 17 the the DT 40404 772 18 average average JJ 40404 772 19 rate rate NN 40404 772 20 , , , 40404 772 21 1 1 CD 40404 772 22 ° ° , 40404 772 23 F. F. NNP 40404 772 24 to to IN 40404 772 25 every every DT 40404 772 26 sixty sixty CD 40404 772 27 feet foot NNS 40404 772 28 of of IN 40404 772 29 descent descent NN 40404 772 30 , , , 40404 772 31 we -PRON- PRP 40404 772 32 may may MD 40404 772 33 conclude conclude VB 40404 772 34 that that IN 40404 772 35 the the DT 40404 772 36 springs spring NNS 40404 772 37 of of IN 40404 772 38 Bath Bath NNP 40404 772 39 rise rise NN 40404 772 40 from from IN 40404 772 41 at at IN 40404 772 42 least least JJS 40404 772 43 a a DT 40404 772 44 depth depth NN 40404 772 45 of of IN 40404 772 46 forty forty CD 40404 772 47 - - HYPH 40404 772 48 two two CD 40404 772 49 hundred hundred CD 40404 772 50 feet foot NNS 40404 772 51 . . . 40404 773 1 Water water NN 40404 773 2 may may MD 40404 773 3 descend descend VB 40404 773 4 to to IN 40404 773 5 depths depth NNS 40404 773 6 from from IN 40404 773 7 which which WDT 40404 773 8 it -PRON- PRP 40404 773 9 can can MD 40404 773 10 never never RB 40404 773 11 be be VB 40404 773 12 brought bring VBN 40404 773 13 back back RB 40404 773 14 by by IN 40404 773 15 hydrostatic hydrostatic JJ 40404 773 16 pressure pressure NN 40404 773 17 . . . 40404 774 1 It -PRON- PRP 40404 774 2 is be VBZ 40404 774 3 absorbed absorb VBN 40404 774 4 by by IN 40404 774 5 highly highly RB 40404 774 6 heated heated JJ 40404 774 7 rocks rock NNS 40404 774 8 deep deep RB 40404 774 9 below below IN 40404 774 10 the the DT 40404 774 11 surface surface NN 40404 774 12 . . . 40404 775 1 From from IN 40404 775 2 time time NN 40404 775 3 to to IN 40404 775 4 time time NN 40404 775 5 some some DT 40404 775 6 of of IN 40404 775 7 this this DT 40404 775 8 deep deep JJ 40404 775 9 - - HYPH 40404 775 10 seated seat VBN 40404 775 11 water water NN 40404 775 12 may may MD 40404 775 13 be be VB 40404 775 14 returned return VBN 40404 775 15 to to IN 40404 775 16 open open JJ 40404 775 17 air air NN 40404 775 18 in in IN 40404 775 19 the the DT 40404 775 20 steam steam NN 40404 775 21 of of IN 40404 775 22 volcanic volcanic JJ 40404 775 23 eruptions eruption NNS 40404 775 24 . . . 40404 776 1 [ [ -LRB- 40404 776 2 Illustration illustration NN 40404 776 3 : : : 40404 776 4 Fig Fig NNP 40404 776 5 . . . 40404 777 1 35 35 CD 40404 777 2 . . . 40404 778 1 Calcareous calcareous JJ 40404 778 2 Deposits deposit NNS 40404 778 3 from from IN 40404 778 4 Hot Hot NNP 40404 778 5 Springs Springs NNP 40404 778 6 , , , 40404 778 7 Yellowstone Yellowstone NNP 40404 778 8 National National NNP 40404 778 9 Park Park NNP 40404 778 10 ] ] -RRB- 40404 778 11 = = NFP 40404 778 12 Surface surface NN 40404 778 13 deposits deposit NNS 40404 778 14 of of IN 40404 778 15 springs.= springs.= CD 40404 778 16 Where where WRB 40404 778 17 subterranean subterranean JJ 40404 778 18 water water NN 40404 778 19 returns return VBZ 40404 778 20 to to IN 40404 778 21 the the DT 40404 778 22 surface surface NN 40404 778 23 highly highly RB 40404 778 24 charged charge VBN 40404 778 25 with with IN 40404 778 26 minerals mineral NNS 40404 778 27 in in IN 40404 778 28 solution solution NN 40404 778 29 , , , 40404 778 30 on on IN 40404 778 31 exposure exposure NN 40404 778 32 to to IN 40404 778 33 the the DT 40404 778 34 air air NN 40404 778 35 it -PRON- PRP 40404 778 36 is be VBZ 40404 778 37 commonly commonly RB 40404 778 38 compelled compel VBN 40404 778 39 to to TO 40404 778 40 lay lay VB 40404 778 41 down down RP 40404 778 42 much much JJ 40404 778 43 of of IN 40404 778 44 its -PRON- PRP$ 40404 778 45 invisible invisible JJ 40404 778 46 load load NN 40404 778 47 in in IN 40404 778 48 chemical chemical NN 40404 778 49 deposits deposit NNS 40404 778 50 about about IN 40404 778 51 the the DT 40404 778 52 spring spring NN 40404 778 53 . . . 40404 779 1 These these DT 40404 779 2 are be VBP 40404 779 3 thrown throw VBN 40404 779 4 down down RP 40404 779 5 from from IN 40404 779 6 solution solution NN 40404 779 7 either either CC 40404 779 8 because because IN 40404 779 9 of of IN 40404 779 10 cooling cooling NN 40404 779 11 , , , 40404 779 12 evaporation evaporation NN 40404 779 13 , , , 40404 779 14 the the DT 40404 779 15 loss loss NN 40404 779 16 of of IN 40404 779 17 carbon carbon NN 40404 779 18 dioxide dioxide NN 40404 779 19 , , , 40404 779 20 or or CC 40404 779 21 the the DT 40404 779 22 work work NN 40404 779 23 of of IN 40404 779 24 algae algae NN 40404 779 25 . . . 40404 780 1 Many many JJ 40404 780 2 springs spring NNS 40404 780 3 have have VBP 40404 780 4 been be VBN 40404 780 5 charged charge VBN 40404 780 6 under under IN 40404 780 7 pressure pressure NN 40404 780 8 with with IN 40404 780 9 carbon carbon NN 40404 780 10 dioxide dioxide NN 40404 780 11 from from IN 40404 780 12 subterranean subterranean JJ 40404 780 13 sources source NNS 40404 780 14 and and CC 40404 780 15 are be VBP 40404 780 16 able able JJ 40404 780 17 therefore therefore RB 40404 780 18 to to TO 40404 780 19 take take VB 40404 780 20 up up RP 40404 780 21 large large JJ 40404 780 22 quantities quantity NNS 40404 780 23 of of IN 40404 780 24 lime lime NN 40404 780 25 carbonate carbonate NN 40404 780 26 from from IN 40404 780 27 the the DT 40404 780 28 limestone limestone NN 40404 780 29 rocks rock VBZ 40404 780 30 through through IN 40404 780 31 which which WDT 40404 780 32 they -PRON- PRP 40404 780 33 pass pass VBP 40404 780 34 . . . 40404 781 1 On on IN 40404 781 2 reaching reach VBG 40404 781 3 the the DT 40404 781 4 surface surface NN 40404 781 5 the the DT 40404 781 6 pressure pressure NN 40404 781 7 is be VBZ 40404 781 8 relieved relieve VBN 40404 781 9 , , , 40404 781 10 the the DT 40404 781 11 gas gas NN 40404 781 12 escapes escape NNS 40404 781 13 , , , 40404 781 14 and and CC 40404 781 15 the the DT 40404 781 16 lime lime JJ 40404 781 17 carbonate carbonate NN 40404 781 18 is be VBZ 40404 781 19 thrown throw VBN 40404 781 20 down down RP 40404 781 21 in in IN 40404 781 22 deposits deposit NNS 40404 781 23 called call VBN 40404 781 24 _ _ NNP 40404 781 25 travertine travertine NN 40404 781 26 _ _ NNP 40404 781 27 . . . 40404 782 1 The the DT 40404 782 2 gas gas NN 40404 782 3 is be VBZ 40404 782 4 sometimes sometimes RB 40404 782 5 withdrawn withdraw VBN 40404 782 6 and and CC 40404 782 7 the the DT 40404 782 8 deposit deposit NN 40404 782 9 produced produce VBN 40404 782 10 in in IN 40404 782 11 large large JJ 40404 782 12 part part NN 40404 782 13 by by IN 40404 782 14 the the DT 40404 782 15 action action NN 40404 782 16 of of IN 40404 782 17 algae algae NN 40404 782 18 and and CC 40404 782 19 other other JJ 40404 782 20 humble humble JJ 40404 782 21 forms form NNS 40404 782 22 of of IN 40404 782 23 plant plant NN 40404 782 24 life life NN 40404 782 25 . . . 40404 783 1 At at IN 40404 783 2 the the DT 40404 783 3 Mammoth Mammoth NNP 40404 783 4 Hot Hot NNP 40404 783 5 Springs Springs NNPS 40404 783 6 in in IN 40404 783 7 the the DT 40404 783 8 valley valley NN 40404 783 9 of of IN 40404 783 10 the the DT 40404 783 11 Gardiner Gardiner NNP 40404 783 12 River River NNP 40404 783 13 , , , 40404 783 14 Yellowstone Yellowstone NNP 40404 783 15 National National NNP 40404 783 16 Park Park NNP 40404 783 17 , , , 40404 783 18 beautiful beautiful JJ 40404 783 19 terraces terrace NNS 40404 783 20 and and CC 40404 783 21 basins basin NNS 40404 783 22 of of IN 40404 783 23 travertine travertine NN 40404 783 24 ( ( -LRB- 40404 783 25 Fig fig NN 40404 783 26 . . . 40404 784 1 35 35 CD 40404 784 2 ) ) -RRB- 40404 784 3 are be VBP 40404 784 4 now now RB 40404 784 5 building build VBG 40404 784 6 , , , 40404 784 7 chiefly chiefly RB 40404 784 8 by by IN 40404 784 9 means mean NNS 40404 784 10 of of IN 40404 784 11 algae algae NN 40404 784 12 which which WDT 40404 784 13 cover cover VBP 40404 784 14 the the DT 40404 784 15 bottoms bottom NNS 40404 784 16 , , , 40404 784 17 rims rim NNS 40404 784 18 , , , 40404 784 19 and and CC 40404 784 20 sides side NNS 40404 784 21 of of IN 40404 784 22 the the DT 40404 784 23 basins basin NNS 40404 784 24 and and CC 40404 784 25 deposit deposit VB 40404 784 26 lime lime NN 40404 784 27 carbonate carbonate NN 40404 784 28 upon upon IN 40404 784 29 them -PRON- PRP 40404 784 30 in in IN 40404 784 31 successive successive JJ 40404 784 32 sheets sheet NNS 40404 784 33 . . . 40404 785 1 The the DT 40404 785 2 rock rock NN 40404 785 3 , , , 40404 785 4 snow snow NN 40404 785 5 - - HYPH 40404 785 6 white white JJ 40404 785 7 where where WRB 40404 785 8 dry dry JJ 40404 785 9 , , , 40404 785 10 is be VBZ 40404 785 11 coated coat VBN 40404 785 12 with with IN 40404 785 13 red red JJ 40404 785 14 and and CC 40404 785 15 orange orange JJ 40404 785 16 gelatinous gelatinous JJ 40404 785 17 mats mat NNS 40404 785 18 where where WRB 40404 785 19 the the DT 40404 785 20 algae algae NN 40404 785 21 thrive thrive VBP 40404 785 22 in in IN 40404 785 23 the the DT 40404 785 24 over over RB 40404 785 25 - - HYPH 40404 785 26 flowing flow VBG 40404 785 27 waters water NNS 40404 785 28 . . . 40404 786 1 Similar similar JJ 40404 786 2 terraces terrace NNS 40404 786 3 of of IN 40404 786 4 travertine travertine NN 40404 786 5 are be VBP 40404 786 6 found find VBN 40404 786 7 to to IN 40404 786 8 a a DT 40404 786 9 height height NN 40404 786 10 of of IN 40404 786 11 fourteen fourteen CD 40404 786 12 hundred hundred CD 40404 786 13 feet foot NNS 40404 786 14 up up IN 40404 786 15 the the DT 40404 786 16 valley valley NN 40404 786 17 side side NN 40404 786 18 . . . 40404 787 1 We -PRON- PRP 40404 787 2 may may MD 40404 787 3 infer infer VB 40404 787 4 that that IN 40404 787 5 the the DT 40404 787 6 springs spring NNS 40404 787 7 which which WDT 40404 787 8 formed form VBD 40404 787 9 these these DT 40404 787 10 ancient ancient JJ 40404 787 11 deposits deposit NNS 40404 787 12 discharged discharge VBN 40404 787 13 near near IN 40404 787 14 what what WP 40404 787 15 was be VBD 40404 787 16 then then RB 40404 787 17 the the DT 40404 787 18 bottom bottom NN 40404 787 19 of of IN 40404 787 20 the the DT 40404 787 21 valley valley NN 40404 787 22 , , , 40404 787 23 and and CC 40404 787 24 that that IN 40404 787 25 as as IN 40404 787 26 the the DT 40404 787 27 valley valley NN 40404 787 28 has have VBZ 40404 787 29 been be VBN 40404 787 30 deepened deepen VBN 40404 787 31 by by IN 40404 787 32 the the DT 40404 787 33 river river NN 40404 787 34 the the DT 40404 787 35 ground ground NN 40404 787 36 water water NN 40404 787 37 of of IN 40404 787 38 the the DT 40404 787 39 region region NN 40404 787 40 has have VBZ 40404 787 41 found find VBN 40404 787 42 lower low JJR 40404 787 43 and and CC 40404 787 44 lower low JJR 40404 787 45 points point NNS 40404 787 46 of of IN 40404 787 47 issue issue NN 40404 787 48 . . . 40404 788 1 In in IN 40404 788 2 many many JJ 40404 788 3 parts part NNS 40404 788 4 of of IN 40404 788 5 the the DT 40404 788 6 country country NN 40404 788 7 calcareous calcareous JJ 40404 788 8 springs spring NNS 40404 788 9 occur occur VBP 40404 788 10 which which WDT 40404 788 11 coat coat NN 40404 788 12 with with IN 40404 788 13 lime lime JJ 40404 788 14 carbonate carbonate NN 40404 788 15 mosses moss NNS 40404 788 16 , , , 40404 788 17 twigs twig NNS 40404 788 18 , , , 40404 788 19 and and CC 40404 788 20 other other JJ 40404 788 21 objects object NNS 40404 788 22 over over IN 40404 788 23 which which WDT 40404 788 24 their -PRON- PRP$ 40404 788 25 waters water NNS 40404 788 26 flow flow VBP 40404 788 27 . . . 40404 789 1 Such such JJ 40404 789 2 are be VBP 40404 789 3 popularly popularly RB 40404 789 4 known know VBN 40404 789 5 as as IN 40404 789 6 petrifying petrifying NN 40404 789 7 springs spring NNS 40404 789 8 , , , 40404 789 9 although although IN 40404 789 10 they -PRON- PRP 40404 789 11 merely merely RB 40404 789 12 incrust incrust VBP 40404 789 13 the the DT 40404 789 14 objects object NNS 40404 789 15 and and CC 40404 789 16 do do VBP 40404 789 17 not not RB 40404 789 18 convert convert VB 40404 789 19 them -PRON- PRP 40404 789 20 into into IN 40404 789 21 stone stone NN 40404 789 22 . . . 40404 790 1 Silica Silica NNP 40404 790 2 is be VBZ 40404 790 3 soluble soluble JJ 40404 790 4 in in IN 40404 790 5 alkaline alkaline NN 40404 790 6 waters water NNS 40404 790 7 , , , 40404 790 8 especially especially RB 40404 790 9 when when WRB 40404 790 10 these these DT 40404 790 11 are be VBP 40404 790 12 hot hot JJ 40404 790 13 . . . 40404 791 1 Hot hot JJ 40404 791 2 springs spring NNS 40404 791 3 rising rise VBG 40404 791 4 through through IN 40404 791 5 alkaline alkaline JJ 40404 791 6 siliceous siliceous JJ 40404 791 7 rocks rock NNS 40404 791 8 , , , 40404 791 9 such such JJ 40404 791 10 as as IN 40404 791 11 lavas lavas NNP 40404 791 12 , , , 40404 791 13 often often RB 40404 791 14 deposit deposit VBP 40404 791 15 silica silica NN 40404 791 16 in in IN 40404 791 17 a a DT 40404 791 18 white white JJ 40404 791 19 spongy spongy NN 40404 791 20 formation formation NN 40404 791 21 known know VBN 40404 791 22 as as IN 40404 791 23 _ _ NNP 40404 791 24 siliceous siliceous JJ 40404 791 25 sinter sinter NN 40404 791 26 _ _ NNP 40404 791 27 , , , 40404 791 28 both both CC 40404 791 29 by by IN 40404 791 30 evaporation evaporation NN 40404 791 31 and and CC 40404 791 32 by by IN 40404 791 33 the the DT 40404 791 34 action action NN 40404 791 35 of of IN 40404 791 36 algae algae NN 40404 791 37 which which WDT 40404 791 38 secrete secrete VBP 40404 791 39 silica silica NN 40404 791 40 from from IN 40404 791 41 the the DT 40404 791 42 waters water NNS 40404 791 43 . . . 40404 792 1 It -PRON- PRP 40404 792 2 is be VBZ 40404 792 3 in in IN 40404 792 4 this this DT 40404 792 5 way way NN 40404 792 6 that that WDT 40404 792 7 the the DT 40404 792 8 cones cone NNS 40404 792 9 and and CC 40404 792 10 mounds mound NNS 40404 792 11 of of IN 40404 792 12 the the DT 40404 792 13 geysers geyser NNS 40404 792 14 in in IN 40404 792 15 the the DT 40404 792 16 Yellowstone Yellowstone NNP 40404 792 17 National National NNP 40404 792 18 Park Park NNP 40404 792 19 and and CC 40404 792 20 in in IN 40404 792 21 Iceland Iceland NNP 40404 792 22 have have VBP 40404 792 23 been be VBN 40404 792 24 formed form VBN 40404 792 25 ( ( -LRB- 40404 792 26 Fig fig NN 40404 792 27 . . . 40404 793 1 234 234 CD 40404 793 2 ) ) -RRB- 40404 793 3 . . . 40404 794 1 Where where WRB 40404 794 2 water water NN 40404 794 3 oozes ooze VBZ 40404 794 4 from from IN 40404 794 5 the the DT 40404 794 6 earth earth NN 40404 794 7 one one NN 40404 794 8 may may MD 40404 794 9 sometimes sometimes RB 40404 794 10 see see VB 40404 794 11 a a DT 40404 794 12 rusty rusty JJ 40404 794 13 deposit deposit NN 40404 794 14 on on IN 40404 794 15 the the DT 40404 794 16 ground ground NN 40404 794 17 , , , 40404 794 18 and and CC 40404 794 19 perhaps perhaps RB 40404 794 20 an an DT 40404 794 21 iridescent iridescent JJ 40404 794 22 scum scum NN 40404 794 23 upon upon IN 40404 794 24 the the DT 40404 794 25 water water NN 40404 794 26 . . . 40404 795 1 The the DT 40404 795 2 scum scum NN 40404 795 3 is be VBZ 40404 795 4 often often RB 40404 795 5 mistaken mistaken JJ 40404 795 6 for for IN 40404 795 7 oil oil NN 40404 795 8 , , , 40404 795 9 but but CC 40404 795 10 at at IN 40404 795 11 a a DT 40404 795 12 touch touch NN 40404 795 13 it -PRON- PRP 40404 795 14 cracks crack VBZ 40404 795 15 and and CC 40404 795 16 breaks break NNS 40404 795 17 , , , 40404 795 18 as as IN 40404 795 19 oil oil NN 40404 795 20 would would MD 40404 795 21 not not RB 40404 795 22 do do VB 40404 795 23 . . . 40404 796 1 It -PRON- PRP 40404 796 2 is be VBZ 40404 796 3 a a DT 40404 796 4 film film NN 40404 796 5 of of IN 40404 796 6 hydrated hydrated JJ 40404 796 7 iron iron NN 40404 796 8 oxide oxide NN 40404 796 9 , , , 40404 796 10 or or CC 40404 796 11 _ _ NNP 40404 796 12 limonite limonite NN 40404 796 13 _ _ NNP 40404 796 14 , , , 40404 796 15 and and CC 40404 796 16 the the DT 40404 796 17 spring spring NN 40404 796 18 is be VBZ 40404 796 19 an an DT 40404 796 20 iron iron NN 40404 796 21 , , , 40404 796 22 or or CC 40404 796 23 chalybeate chalybeate NN 40404 796 24 , , , 40404 796 25 spring spring NN 40404 796 26 . . . 40404 797 1 Compounds compound NNS 40404 797 2 of of IN 40404 797 3 iron iron NN 40404 797 4 have have VBP 40404 797 5 been be VBN 40404 797 6 taken take VBN 40404 797 7 into into IN 40404 797 8 solution solution NN 40404 797 9 by by IN 40404 797 10 ground ground NN 40404 797 11 water water NN 40404 797 12 from from IN 40404 797 13 soil soil NN 40404 797 14 and and CC 40404 797 15 rocks rock NNS 40404 797 16 , , , 40404 797 17 and and CC 40404 797 18 are be VBP 40404 797 19 now now RB 40404 797 20 changed change VBN 40404 797 21 to to IN 40404 797 22 the the DT 40404 797 23 insoluble insoluble JJ 40404 797 24 oxide oxide NN 40404 797 25 on on IN 40404 797 26 exposure exposure NN 40404 797 27 to to IN 40404 797 28 the the DT 40404 797 29 oxygen oxygen NN 40404 797 30 of of IN 40404 797 31 the the DT 40404 797 32 air air NN 40404 797 33 . . . 40404 798 1 In in IN 40404 798 2 wet wet JJ 40404 798 3 ground ground NN 40404 798 4 iron iron NN 40404 798 5 compounds compound NNS 40404 798 6 leached leach VBN 40404 798 7 by by IN 40404 798 8 ground ground NN 40404 798 9 water water NN 40404 798 10 from from IN 40404 798 11 the the DT 40404 798 12 soil soil NN 40404 798 13 often often RB 40404 798 14 collect collect VBP 40404 798 15 in in IN 40404 798 16 reddish reddish JJ 40404 798 17 deposits deposit NNS 40404 798 18 a a DT 40404 798 19 few few JJ 40404 798 20 feet foot NNS 40404 798 21 below below IN 40404 798 22 the the DT 40404 798 23 surface surface NN 40404 798 24 , , , 40404 798 25 where where WRB 40404 798 26 their -PRON- PRP$ 40404 798 27 downward downward JJ 40404 798 28 progress progress NN 40404 798 29 is be VBZ 40404 798 30 arrested arrest VBN 40404 798 31 by by IN 40404 798 32 some some DT 40404 798 33 impervious impervious JJ 40404 798 34 clay clay NN 40404 798 35 . . . 40404 799 1 At at IN 40404 799 2 the the DT 40404 799 3 bottom bottom NN 40404 799 4 of of IN 40404 799 5 bogs bog NNS 40404 799 6 and and CC 40404 799 7 shallow shallow JJ 40404 799 8 lakes lakes NNP 40404 799 9 iron iron NN 40404 799 10 ores ore NNS 40404 799 11 sometimes sometimes RB 40404 799 12 accumulate accumulate VBP 40404 799 13 to to IN 40404 799 14 a a DT 40404 799 15 depth depth NN 40404 799 16 of of IN 40404 799 17 several several JJ 40404 799 18 feet foot NNS 40404 799 19 . . . 40404 800 1 Decaying decay VBG 40404 800 2 organic organic JJ 40404 800 3 matter matter NN 40404 800 4 plays play VBZ 40404 800 5 a a DT 40404 800 6 large large JJ 40404 800 7 part part NN 40404 800 8 in in IN 40404 800 9 these these DT 40404 800 10 changes change NNS 40404 800 11 . . . 40404 801 1 In in IN 40404 801 2 its -PRON- PRP$ 40404 801 3 presence presence NN 40404 801 4 the the DT 40404 801 5 insoluble insoluble JJ 40404 801 6 iron iron NN 40404 801 7 oxides oxide NNS 40404 801 8 which which WDT 40404 801 9 give give VBP 40404 801 10 color color NN 40404 801 11 to to IN 40404 801 12 most most JJS 40404 801 13 red red JJ 40404 801 14 and and CC 40404 801 15 yellow yellow JJ 40404 801 16 rocks rock NNS 40404 801 17 are be VBP 40404 801 18 decomposed decompose VBN 40404 801 19 , , , 40404 801 20 leaving leave VBG 40404 801 21 the the DT 40404 801 22 rocks rock NNS 40404 801 23 of of IN 40404 801 24 a a DT 40404 801 25 gray gray JJ 40404 801 26 or or CC 40404 801 27 bluish bluish JJ 40404 801 28 color color NN 40404 801 29 , , , 40404 801 30 and and CC 40404 801 31 the the DT 40404 801 32 soluble soluble JJ 40404 801 33 iron iron NN 40404 801 34 compounds compound NNS 40404 801 35 which which WDT 40404 801 36 result result VBP 40404 801 37 are be VBP 40404 801 38 readily readily RB 40404 801 39 leached leach VBN 40404 801 40 out,--effects out,--effect NNS 40404 801 41 seen see VBN 40404 801 42 where where WRB 40404 801 43 red red JJ 40404 801 44 or or CC 40404 801 45 yellow yellow JJ 40404 801 46 clays clay NNS 40404 801 47 have have VBP 40404 801 48 been be VBN 40404 801 49 bleached bleach VBN 40404 801 50 about about IN 40404 801 51 some some DT 40404 801 52 decaying decay VBG 40404 801 53 tree tree NN 40404 801 54 root root NN 40404 801 55 . . . 40404 802 1 The the DT 40404 802 2 iron iron NN 40404 802 3 thus thus RB 40404 802 4 dissolved dissolve VBN 40404 802 5 is be VBZ 40404 802 6 laid lay VBN 40404 802 7 down down RP 40404 802 8 as as IN 40404 802 9 limonite limonite NN 40404 802 10 when when WRB 40404 802 11 oxidized oxidize VBN 40404 802 12 , , , 40404 802 13 as as IN 40404 802 14 about about IN 40404 802 15 a a DT 40404 802 16 chalybeate chalybeate JJ 40404 802 17 spring spring NN 40404 802 18 ; ; : 40404 802 19 but but CC 40404 802 20 out out IN 40404 802 21 of of IN 40404 802 22 contact contact NN 40404 802 23 with with IN 40404 802 24 the the DT 40404 802 25 air air NN 40404 802 26 and and CC 40404 802 27 in in IN 40404 802 28 the the DT 40404 802 29 presence presence NN 40404 802 30 of of IN 40404 802 31 carbon carbon NN 40404 802 32 dioxide dioxide NN 40404 802 33 supplied supply VBN 40404 802 34 by by IN 40404 802 35 decaying decay VBG 40404 802 36 vegetation vegetation NN 40404 802 37 , , , 40404 802 38 as as IN 40404 802 39 in in IN 40404 802 40 a a DT 40404 802 41 peat peat NN 40404 802 42 bog bog NN 40404 802 43 , , , 40404 802 44 it -PRON- PRP 40404 802 45 may may MD 40404 802 46 be be VB 40404 802 47 deposited deposit VBN 40404 802 48 as as IN 40404 802 49 iron iron NN 40404 802 50 carbonate carbonate NN 40404 802 51 , , , 40404 802 52 or or CC 40404 802 53 _ _ NNP 40404 802 54 siderite siderite NN 40404 802 55 _ _ NNP 40404 802 56 . . . 40404 803 1 = = NFP 40404 803 2 Total total JJ 40404 803 3 amount amount NN 40404 803 4 of of IN 40404 803 5 underground underground JJ 40404 803 6 waters.= waters.= CD 40404 803 7 In in IN 40404 803 8 order order NN 40404 803 9 to to TO 40404 803 10 realize realize VB 40404 803 11 the the DT 40404 803 12 vast vast JJ 40404 803 13 work work NN 40404 803 14 in in IN 40404 803 15 solution solution NN 40404 803 16 and and CC 40404 803 17 cementation cementation NN 40404 803 18 which which WDT 40404 803 19 underground underground JJ 40404 803 20 waters water NNS 40404 803 21 are be VBP 40404 803 22 now now RB 40404 803 23 doing do VBG 40404 803 24 and and CC 40404 803 25 have have VBP 40404 803 26 done do VBN 40404 803 27 in in IN 40404 803 28 all all DT 40404 803 29 geological geological JJ 40404 803 30 ages age NNS 40404 803 31 , , , 40404 803 32 we -PRON- PRP 40404 803 33 must must MD 40404 803 34 gain gain VB 40404 803 35 some some DT 40404 803 36 conception conception NN 40404 803 37 of of IN 40404 803 38 their -PRON- PRP$ 40404 803 39 amount amount NN 40404 803 40 . . . 40404 804 1 At at IN 40404 804 2 a a DT 40404 804 3 certain certain JJ 40404 804 4 depth depth NN 40404 804 5 , , , 40404 804 6 estimated estimate VBN 40404 804 7 at at IN 40404 804 8 about about RB 40404 804 9 six six CD 40404 804 10 miles mile NNS 40404 804 11 , , , 40404 804 12 the the DT 40404 804 13 weight weight NN 40404 804 14 of of IN 40404 804 15 the the DT 40404 804 16 crust crust NN 40404 804 17 becomes become VBZ 40404 804 18 greater great JJR 40404 804 19 than than IN 40404 804 20 the the DT 40404 804 21 rocks rock NNS 40404 804 22 can can MD 40404 804 23 bear bear VB 40404 804 24 , , , 40404 804 25 and and CC 40404 804 26 all all DT 40404 804 27 cavities cavity NNS 40404 804 28 and and CC 40404 804 29 pores pore NNS 40404 804 30 in in IN 40404 804 31 them -PRON- PRP 40404 804 32 must must MD 40404 804 33 be be VB 40404 804 34 completely completely RB 40404 804 35 closed close VBN 40404 804 36 by by IN 40404 804 37 the the DT 40404 804 38 enormous enormous JJ 40404 804 39 pressure pressure NN 40404 804 40 which which WDT 40404 804 41 they -PRON- PRP 40404 804 42 sustain sustain VBP 40404 804 43 . . . 40404 805 1 Below below IN 40404 805 2 a a DT 40404 805 3 depth depth NN 40404 805 4 , , , 40404 805 5 therefore therefore RB 40404 805 6 , , , 40404 805 7 water water NN 40404 805 8 can can MD 40404 805 9 not not RB 40404 805 10 go go VB 40404 805 11 . . . 40404 806 1 Above above IN 40404 806 2 it -PRON- PRP 40404 806 3 all all DT 40404 806 4 rocks rock NNS 40404 806 5 are be VBP 40404 806 6 water water NN 40404 806 7 - - HYPH 40404 806 8 soaked soak VBN 40404 806 9 , , , 40404 806 10 up up IN 40404 806 11 to to IN 40404 806 12 the the DT 40404 806 13 limit limit NN 40404 806 14 of of IN 40404 806 15 their -PRON- PRP$ 40404 806 16 capacity capacity NN 40404 806 17 , , , 40404 806 18 to to IN 40404 806 19 within within IN 40404 806 20 a a DT 40404 806 21 few few JJ 40404 806 22 feet foot NNS 40404 806 23 of of IN 40404 806 24 the the DT 40404 806 25 surface surface NN 40404 806 26 . . . 40404 807 1 Estimating estimate VBG 40404 807 2 the the DT 40404 807 3 average average JJ 40404 807 4 pore pore NN 40404 807 5 space space NN 40404 807 6 of of IN 40404 807 7 the the DT 40404 807 8 rocks rock NNS 40404 807 9 above above IN 40404 807 10 a a DT 40404 807 11 depth depth NN 40404 807 12 of of IN 40404 807 13 six six CD 40404 807 14 miles mile NNS 40404 807 15 at at IN 40404 807 16 from from IN 40404 807 17 two two CD 40404 807 18 and and CC 40404 807 19 a a DT 40404 807 20 half half NN 40404 807 21 per per IN 40404 807 22 cent cent NN 40404 807 23 to to IN 40404 807 24 five five CD 40404 807 25 per per IN 40404 807 26 cent cent NN 40404 807 27 of of IN 40404 807 28 their -PRON- PRP$ 40404 807 29 volume volume NN 40404 807 30 , , , 40404 807 31 it -PRON- PRP 40404 807 32 is be VBZ 40404 807 33 found find VBN 40404 807 34 that that IN 40404 807 35 the the DT 40404 807 36 total total JJ 40404 807 37 amount amount NN 40404 807 38 of of IN 40404 807 39 ground ground NN 40404 807 40 water water NN 40404 807 41 may may MD 40404 807 42 be be VB 40404 807 43 great great JJ 40404 807 44 enough enough RB 40404 807 45 to to TO 40404 807 46 cover cover VB 40404 807 47 the the DT 40404 807 48 entire entire JJ 40404 807 49 surface surface NN 40404 807 50 of of IN 40404 807 51 the the DT 40404 807 52 earth earth NN 40404 807 53 to to IN 40404 807 54 a a DT 40404 807 55 depth depth NN 40404 807 56 of of IN 40404 807 57 from from IN 40404 807 58 eight eight CD 40404 807 59 hundred hundred CD 40404 807 60 to to TO 40404 807 61 sixteen sixteen CD 40404 807 62 hundred hundred CD 40404 807 63 feet foot NNS 40404 807 64 . . . 40404 808 1 CHAPTER CHAPTER NNP 40404 808 2 III iii CD 40404 808 3 RIVERS river NNS 40404 808 4 AND and CC 40404 808 5 VALLEYS valleys NN 40404 808 6 = = -RRB- 40404 808 7 The the DT 40404 808 8 run run NN 40404 808 9 - - HYPH 40404 808 10 off.= off.= JJ 40404 808 11 We -PRON- PRP 40404 808 12 have have VBP 40404 808 13 traced trace VBN 40404 808 14 the the DT 40404 808 15 history history NN 40404 808 16 of of IN 40404 808 17 that that DT 40404 808 18 portion portion NN 40404 808 19 of of IN 40404 808 20 the the DT 40404 808 21 rainfall rainfall NN 40404 808 22 which which WDT 40404 808 23 soaks soak VBZ 40404 808 24 into into IN 40404 808 25 the the DT 40404 808 26 ground ground NN 40404 808 27 ; ; : 40404 808 28 let let VB 40404 808 29 us -PRON- PRP 40404 808 30 now now RB 40404 808 31 return return VB 40404 808 32 to to IN 40404 808 33 that that DT 40404 808 34 part part NN 40404 808 35 which which WDT 40404 808 36 washes wash VBZ 40404 808 37 along along IN 40404 808 38 the the DT 40404 808 39 surface surface NN 40404 808 40 and and CC 40404 808 41 is be VBZ 40404 808 42 known know VBN 40404 808 43 as as IN 40404 808 44 the the DT 40404 808 45 _ _ NNP 40404 808 46 run run NN 40404 808 47 - - HYPH 40404 808 48 off off RP 40404 808 49 _ _ NNP 40404 808 50 . . . 40404 809 1 Fed feed VBN 40404 809 2 by by IN 40404 809 3 rains rain NNS 40404 809 4 and and CC 40404 809 5 melting melting NN 40404 809 6 snows snow NNS 40404 809 7 , , , 40404 809 8 the the DT 40404 809 9 run run VBN 40404 809 10 - - HYPH 40404 809 11 off off RP 40404 809 12 gathers gather NNS 40404 809 13 into into IN 40404 809 14 courses course NNS 40404 809 15 , , , 40404 809 16 perhaps perhaps RB 40404 809 17 but but CC 40404 809 18 faintly faintly RB 40404 809 19 marked mark VBN 40404 809 20 at at IN 40404 809 21 first first RB 40404 809 22 , , , 40404 809 23 which which WDT 40404 809 24 join join VBP 40404 809 25 more more RBR 40404 809 26 definite definite JJ 40404 809 27 and and CC 40404 809 28 deeply deeply RB 40404 809 29 cut cut VBN 40404 809 30 channels channel NNS 40404 809 31 , , , 40404 809 32 as as IN 40404 809 33 twigs twig VBZ 40404 809 34 their -PRON- PRP$ 40404 809 35 stems stem NNS 40404 809 36 . . . 40404 810 1 In in IN 40404 810 2 a a DT 40404 810 3 humid humid JJ 40404 810 4 climate climate NN 40404 810 5 the the DT 40404 810 6 larger large JJR 40404 810 7 ravines ravine NNS 40404 810 8 through through IN 40404 810 9 which which WDT 40404 810 10 the the DT 40404 810 11 run run NN 40404 810 12 - - HYPH 40404 810 13 off off RP 40404 810 14 flows flow NNS 40404 810 15 soon soon RB 40404 810 16 descend descend VBP 40404 810 17 below below IN 40404 810 18 the the DT 40404 810 19 ground ground NN 40404 810 20 - - HYPH 40404 810 21 water water NN 40404 810 22 surface surface NN 40404 810 23 . . . 40404 811 1 Here here RB 40404 811 2 springs spring NNS 40404 811 3 discharge discharge VBP 40404 811 4 along along IN 40404 811 5 the the DT 40404 811 6 sides side NNS 40404 811 7 of of IN 40404 811 8 the the DT 40404 811 9 little little JJ 40404 811 10 valleys valley NNS 40404 811 11 and and CC 40404 811 12 permanent permanent JJ 40404 811 13 streams stream NNS 40404 811 14 begin begin VBP 40404 811 15 . . . 40404 812 1 The the DT 40404 812 2 water water NN 40404 812 3 supplied supply VBN 40404 812 4 by by IN 40404 812 5 the the DT 40404 812 6 run run NN 40404 812 7 - - HYPH 40404 812 8 off off NN 40404 812 9 here here RB 40404 812 10 joins join VBZ 40404 812 11 that that DT 40404 812 12 part part NN 40404 812 13 of of IN 40404 812 14 the the DT 40404 812 15 rainfall rainfall NN 40404 812 16 which which WDT 40404 812 17 had have VBD 40404 812 18 soaked soak VBN 40404 812 19 into into IN 40404 812 20 the the DT 40404 812 21 soil soil NN 40404 812 22 , , , 40404 812 23 and and CC 40404 812 24 both both DT 40404 812 25 now now RB 40404 812 26 proceed proceed VBP 40404 812 27 together together RB 40404 812 28 by by IN 40404 812 29 way way NN 40404 812 30 of of IN 40404 812 31 the the DT 40404 812 32 stream stream NN 40404 812 33 to to IN 40404 812 34 the the DT 40404 812 35 sea sea NN 40404 812 36 . . . 40404 813 1 = = NFP 40404 813 2 River River NNP 40404 813 3 floods.= floods.= NNS 40404 813 4 Streams Streams NNP 40404 813 5 vary vary VBP 40404 813 6 greatly greatly RB 40404 813 7 in in IN 40404 813 8 volume volume NN 40404 813 9 during during IN 40404 813 10 the the DT 40404 813 11 year year NN 40404 813 12 . . . 40404 814 1 At at IN 40404 814 2 stages stage NNS 40404 814 3 of of IN 40404 814 4 flood flood NN 40404 814 5 they -PRON- PRP 40404 814 6 fill fill VBP 40404 814 7 their -PRON- PRP$ 40404 814 8 immediate immediate JJ 40404 814 9 banks bank NNS 40404 814 10 , , , 40404 814 11 or or CC 40404 814 12 overrun overrun VB 40404 814 13 them -PRON- PRP 40404 814 14 and and CC 40404 814 15 inundate inundate VB 40404 814 16 any any DT 40404 814 17 low low JJ 40404 814 18 lands land NNS 40404 814 19 adjacent adjacent JJ 40404 814 20 to to IN 40404 814 21 the the DT 40404 814 22 channel channel NN 40404 814 23 ; ; : 40404 814 24 at at IN 40404 814 25 stages stage NNS 40404 814 26 of of IN 40404 814 27 low low JJ 40404 814 28 water water NN 40404 814 29 they -PRON- PRP 40404 814 30 diminish diminish VBP 40404 814 31 to to IN 40404 814 32 but but CC 40404 814 33 a a DT 40404 814 34 fraction fraction NN 40404 814 35 of of IN 40404 814 36 their -PRON- PRP$ 40404 814 37 volume volume NN 40404 814 38 when when WRB 40404 814 39 at at IN 40404 814 40 flood flood NN 40404 814 41 . . . 40404 815 1 At at IN 40404 815 2 times time NNS 40404 815 3 of of IN 40404 815 4 flood flood NN 40404 815 5 , , , 40404 815 6 rivers river NNS 40404 815 7 are be VBP 40404 815 8 fed feed VBN 40404 815 9 chiefly chiefly RB 40404 815 10 by by IN 40404 815 11 the the DT 40404 815 12 run run NN 40404 815 13 - - HYPH 40404 815 14 off off NN 40404 815 15 ; ; : 40404 815 16 at at IN 40404 815 17 times time NNS 40404 815 18 of of IN 40404 815 19 low low JJ 40404 815 20 water water NN 40404 815 21 , , , 40404 815 22 largely largely RB 40404 815 23 or or CC 40404 815 24 even even RB 40404 815 25 wholly wholly RB 40404 815 26 by by IN 40404 815 27 springs spring NNS 40404 815 28 . . . 40404 816 1 How how WRB 40404 816 2 , , , 40404 816 3 then then RB 40404 816 4 , , , 40404 816 5 will will MD 40404 816 6 the the DT 40404 816 7 water water NN 40404 816 8 of of IN 40404 816 9 streams stream NNS 40404 816 10 differ differ VBP 40404 816 11 at at IN 40404 816 12 these these DT 40404 816 13 times time NNS 40404 816 14 in in IN 40404 816 15 turbidity turbidity NN 40404 816 16 and and CC 40404 816 17 in in IN 40404 816 18 the the DT 40404 816 19 relative relative JJ 40404 816 20 amount amount NN 40404 816 21 of of IN 40404 816 22 solids solid NNS 40404 816 23 carried carry VBN 40404 816 24 in in IN 40404 816 25 solution solution NN 40404 816 26 ? ? . 40404 817 1 In in IN 40404 817 2 parts part NNS 40404 817 3 of of IN 40404 817 4 England England NNP 40404 817 5 streams stream NNS 40404 817 6 have have VBP 40404 817 7 been be VBN 40404 817 8 known know VBN 40404 817 9 to to TO 40404 817 10 continue continue VB 40404 817 11 flowing flow VBG 40404 817 12 after after IN 40404 817 13 eighteen eighteen CD 40404 817 14 months month NNS 40404 817 15 of of IN 40404 817 16 local local JJ 40404 817 17 drought drought NN 40404 817 18 , , , 40404 817 19 so so CC 40404 817 20 great great JJ 40404 817 21 is be VBZ 40404 817 22 the the DT 40404 817 23 volume volume NN 40404 817 24 of of IN 40404 817 25 water water NN 40404 817 26 which which WDT 40404 817 27 in in IN 40404 817 28 humid humid JJ 40404 817 29 climates climate NNS 40404 817 30 is be VBZ 40404 817 31 stored store VBN 40404 817 32 in in IN 40404 817 33 the the DT 40404 817 34 rocks rock NNS 40404 817 35 above above IN 40404 817 36 the the DT 40404 817 37 drainage drainage NN 40404 817 38 level level NN 40404 817 39 , , , 40404 817 40 and and CC 40404 817 41 so so RB 40404 817 42 slowly slowly RB 40404 817 43 is be VBZ 40404 817 44 it -PRON- PRP 40404 817 45 given give VBN 40404 817 46 off off RP 40404 817 47 in in IN 40404 817 48 springs spring NNS 40404 817 49 . . . 40404 818 1 In in IN 40404 818 2 Illinois Illinois NNP 40404 818 3 and and CC 40404 818 4 the the DT 40404 818 5 states state NNS 40404 818 6 adjacent adjacent JJ 40404 818 7 , , , 40404 818 8 rivers river NNS 40404 818 9 remain remain VBP 40404 818 10 low low JJ 40404 818 11 in in IN 40404 818 12 winter winter NN 40404 818 13 and and CC 40404 818 14 a a DT 40404 818 15 " " `` 40404 818 16 spring spring NN 40404 818 17 freshet freshet NN 40404 818 18 " " '' 40404 818 19 follows follow VBZ 40404 818 20 the the DT 40404 818 21 melting melting NN 40404 818 22 of of IN 40404 818 23 the the DT 40404 818 24 winter winter NN 40404 818 25 's 's POS 40404 818 26 snows snow NNS 40404 818 27 . . . 40404 819 1 A a DT 40404 819 2 " " `` 40404 819 3 June June NNP 40404 819 4 rise rise NN 40404 819 5 " " '' 40404 819 6 is be VBZ 40404 819 7 produced produce VBN 40404 819 8 by by IN 40404 819 9 the the DT 40404 819 10 heavy heavy JJ 40404 819 11 rains rain NNS 40404 819 12 of of IN 40404 819 13 early early JJ 40404 819 14 summer summer NN 40404 819 15 . . . 40404 820 1 Low low JJ 40404 820 2 water water NN 40404 820 3 follows follow VBZ 40404 820 4 in in IN 40404 820 5 July July NNP 40404 820 6 and and CC 40404 820 7 August August NNP 40404 820 8 , , , 40404 820 9 and and CC 40404 820 10 streams stream NNS 40404 820 11 are be VBP 40404 820 12 again again RB 40404 820 13 swollen swollen JJ 40404 820 14 to to IN 40404 820 15 a a DT 40404 820 16 moderate moderate JJ 40404 820 17 degree degree NN 40404 820 18 under under IN 40404 820 19 the the DT 40404 820 20 rains rain NNS 40404 820 21 of of IN 40404 820 22 autumn autumn NN 40404 820 23 . . . 40404 821 1 = = NFP 40404 821 2 The the DT 40404 821 3 discharge discharge NN 40404 821 4 of of IN 40404 821 5 streams.= streams.= CD 40404 821 6 The the DT 40404 821 7 per per IN 40404 821 8 cent cent NN 40404 821 9 of of IN 40404 821 10 rainfall rainfall NN 40404 821 11 discharged discharge VBN 40404 821 12 by by IN 40404 821 13 rivers river NNS 40404 821 14 varies vary VBZ 40404 821 15 with with IN 40404 821 16 the the DT 40404 821 17 amount amount NN 40404 821 18 of of IN 40404 821 19 rainfall rainfall NN 40404 821 20 , , , 40404 821 21 the the DT 40404 821 22 slope slope NN 40404 821 23 of of IN 40404 821 24 the the DT 40404 821 25 drainage drainage NN 40404 821 26 area area NN 40404 821 27 , , , 40404 821 28 the the DT 40404 821 29 texture texture NN 40404 821 30 of of IN 40404 821 31 the the DT 40404 821 32 rocks rock NNS 40404 821 33 , , , 40404 821 34 and and CC 40404 821 35 other other JJ 40404 821 36 factors factor NNS 40404 821 37 . . . 40404 822 1 With with IN 40404 822 2 an an DT 40404 822 3 annual annual JJ 40404 822 4 rainfall rainfall NN 40404 822 5 of of IN 40404 822 6 fifty fifty CD 40404 822 7 inches inch NNS 40404 822 8 in in IN 40404 822 9 an an DT 40404 822 10 open open JJ 40404 822 11 country country NN 40404 822 12 , , , 40404 822 13 about about RB 40404 822 14 fifty fifty CD 40404 822 15 per per IN 40404 822 16 cent cent NN 40404 822 17 is be VBZ 40404 822 18 discharged discharge VBN 40404 822 19 ; ; : 40404 822 20 while while IN 40404 822 21 with with IN 40404 822 22 a a DT 40404 822 23 rainfall rainfall NN 40404 822 24 of of IN 40404 822 25 twenty twenty CD 40404 822 26 inches inch NNS 40404 822 27 only only RB 40404 822 28 fifteen fifteen CD 40404 822 29 per per IN 40404 822 30 cent cent NN 40404 822 31 is be VBZ 40404 822 32 discharged discharge VBN 40404 822 33 , , , 40404 822 34 part part NN 40404 822 35 of of IN 40404 822 36 the the DT 40404 822 37 remainder remainder NN 40404 822 38 being be VBG 40404 822 39 evaporated evaporate VBN 40404 822 40 and and CC 40404 822 41 part part NN 40404 822 42 passing pass VBG 40404 822 43 underground underground RB 40404 822 44 beyond beyond IN 40404 822 45 the the DT 40404 822 46 drainage drainage NN 40404 822 47 area area NN 40404 822 48 . . . 40404 823 1 Thus thus RB 40404 823 2 the the DT 40404 823 3 Ohio Ohio NNP 40404 823 4 discharges discharge VBZ 40404 823 5 thirty thirty CD 40404 823 6 per per IN 40404 823 7 cent cent NN 40404 823 8 of of IN 40404 823 9 the the DT 40404 823 10 rainfall rainfall NN 40404 823 11 of of IN 40404 823 12 its -PRON- PRP$ 40404 823 13 basin basin NN 40404 823 14 , , , 40404 823 15 while while IN 40404 823 16 the the DT 40404 823 17 Missouri Missouri NNP 40404 823 18 carries carry VBZ 40404 823 19 away away RB 40404 823 20 but but CC 40404 823 21 fifteen fifteen CD 40404 823 22 per per IN 40404 823 23 cent cent NN 40404 823 24 . . . 40404 824 1 A a DT 40404 824 2 number number NN 40404 824 3 of of IN 40404 824 4 the the DT 40404 824 5 streams stream NNS 40404 824 6 of of IN 40404 824 7 the the DT 40404 824 8 semi semi JJ 40404 824 9 - - JJ 40404 824 10 arid arid JJ 40404 824 11 lands land NNS 40404 824 12 of of IN 40404 824 13 the the DT 40404 824 14 West West NNP 40404 824 15 do do VBP 40404 824 16 not not RB 40404 824 17 discharge discharge VB 40404 824 18 more more JJR 40404 824 19 than than IN 40404 824 20 five five CD 40404 824 21 per per IN 40404 824 22 cent cent NN 40404 824 23 of of IN 40404 824 24 the the DT 40404 824 25 rainfall rainfall NN 40404 824 26 . . . 40404 825 1 Other other JJ 40404 825 2 things thing NNS 40404 825 3 being be VBG 40404 825 4 equal equal JJ 40404 825 5 , , , 40404 825 6 which which WDT 40404 825 7 will will MD 40404 825 8 afford afford VB 40404 825 9 the the DT 40404 825 10 larger large JJR 40404 825 11 proportion proportion NN 40404 825 12 of of IN 40404 825 13 run run NN 40404 825 14 - - HYPH 40404 825 15 off off NN 40404 825 16 , , , 40404 825 17 a a DT 40404 825 18 region region NN 40404 825 19 underlain underlain JJ 40404 825 20 with with IN 40404 825 21 granite granite NN 40404 825 22 rock rock NN 40404 825 23 or or CC 40404 825 24 with with IN 40404 825 25 coarse coarse JJ 40404 825 26 sandstone sandstone NN 40404 825 27 ? ? . 40404 826 1 grass grass NN 40404 826 2 land land NN 40404 826 3 or or CC 40404 826 4 forest forest NN 40404 826 5 ? ? . 40404 827 1 steep steep JJ 40404 827 2 slopes slope NNS 40404 827 3 or or CC 40404 827 4 level level NN 40404 827 5 land land NN 40404 827 6 ? ? . 40404 828 1 a a DT 40404 828 2 well well RB 40404 828 3 - - HYPH 40404 828 4 drained drain VBN 40404 828 5 region region NN 40404 828 6 or or CC 40404 828 7 one one CD 40404 828 8 abounding abound VBG 40404 828 9 in in IN 40404 828 10 marshes marsh NNS 40404 828 11 and and CC 40404 828 12 ponds pond NNS 40404 828 13 ? ? . 40404 829 1 frozen frozen JJ 40404 829 2 or or CC 40404 829 3 unfrozen unfrozen JJ 40404 829 4 ground ground NN 40404 829 5 ? ? . 40404 830 1 Will Will MD 40404 830 2 there there EX 40404 830 3 be be VB 40404 830 4 a a DT 40404 830 5 larger large JJR 40404 830 6 proportion proportion NN 40404 830 7 of of IN 40404 830 8 run run NN 40404 830 9 - - HYPH 40404 830 10 off off RP 40404 830 11 after after IN 40404 830 12 long long JJ 40404 830 13 rains rain NNS 40404 830 14 or or CC 40404 830 15 after after IN 40404 830 16 a a DT 40404 830 17 season season NN 40404 830 18 of of IN 40404 830 19 drought drought NN 40404 830 20 ? ? . 40404 831 1 after after IN 40404 831 2 long long JJ 40404 831 3 and and CC 40404 831 4 gentle gentle JJ 40404 831 5 rains rain NNS 40404 831 6 , , , 40404 831 7 or or CC 40404 831 8 after after IN 40404 831 9 the the DT 40404 831 10 same same JJ 40404 831 11 amount amount NN 40404 831 12 of of IN 40404 831 13 precipitation precipitation NN 40404 831 14 in in IN 40404 831 15 a a DT 40404 831 16 violent violent JJ 40404 831 17 rain rain NN 40404 831 18 ? ? . 40404 832 1 during during IN 40404 832 2 the the DT 40404 832 3 months month NNS 40404 832 4 of of IN 40404 832 5 growing grow VBG 40404 832 6 vegetation vegetation NN 40404 832 7 , , , 40404 832 8 from from IN 40404 832 9 June June NNP 40404 832 10 to to IN 40404 832 11 August August NNP 40404 832 12 , , , 40404 832 13 or or CC 40404 832 14 during during IN 40404 832 15 the the DT 40404 832 16 autumn autumn NN 40404 832 17 months month NNS 40404 832 18 ? ? . 40404 833 1 [ [ -LRB- 40404 833 2 Illustration illustration NN 40404 833 3 : : : 40404 833 4 Fig Fig NNP 40404 833 5 . . . 40404 834 1 36 36 CD 40404 834 2 . . . 40404 835 1 Rise rise NN 40404 835 2 of of IN 40404 835 3 Ground Ground NNP 40404 835 4 - - HYPH 40404 835 5 Water Water NNP 40404 835 6 Surface Surface NNP 40404 835 7 ( ( -LRB- 40404 835 8 broken break VBN 40404 835 9 line line NN 40404 835 10 ) ) -RRB- 40404 835 11 beneath beneath IN 40404 835 12 Valley Valley NNP 40404 835 13 ( ( -LRB- 40404 835 14 _ _ NNP 40404 835 15 V V NNP 40404 835 16 _ _ NNP 40404 835 17 ) ) -RRB- 40404 835 18 in in IN 40404 835 19 Arid Arid NNP 40404 835 20 Region Region NNP 40404 835 21 ] ] -RRB- 40404 835 22 = = NFP 40404 835 23 Desert Desert NNP 40404 835 24 streams.= streams.= CD 40404 835 25 In in IN 40404 835 26 arid arid NN 40404 835 27 regions region NNS 40404 835 28 the the DT 40404 835 29 ground ground NN 40404 835 30 - - HYPH 40404 835 31 water water NN 40404 835 32 surface surface NN 40404 835 33 lies lie VBZ 40404 835 34 so so RB 40404 835 35 low low JJ 40404 835 36 that that IN 40404 835 37 for for IN 40404 835 38 the the DT 40404 835 39 most most JJS 40404 835 40 part part NN 40404 835 41 stream stream NN 40404 835 42 ways way NNS 40404 835 43 do do VBP 40404 835 44 not not RB 40404 835 45 intersect intersect VB 40404 835 46 it -PRON- PRP 40404 835 47 . . . 40404 836 1 Streams Streams NNP 40404 836 2 therefore therefore RB 40404 836 3 are be VBP 40404 836 4 not not RB 40404 836 5 fed feed VBN 40404 836 6 by by IN 40404 836 7 springs spring NNS 40404 836 8 , , , 40404 836 9 but but CC 40404 836 10 instead instead RB 40404 836 11 lose lose VB 40404 836 12 volume volume NN 40404 836 13 as as IN 40404 836 14 their -PRON- PRP$ 40404 836 15 waters water NNS 40404 836 16 soak soak VBP 40404 836 17 into into IN 40404 836 18 the the DT 40404 836 19 thirsty thirsty JJ 40404 836 20 rocks rock NNS 40404 836 21 over over IN 40404 836 22 which which WDT 40404 836 23 they -PRON- PRP 40404 836 24 flow flow VBP 40404 836 25 . . . 40404 837 1 They -PRON- PRP 40404 837 2 contribute contribute VBP 40404 837 3 to to IN 40404 837 4 the the DT 40404 837 5 ground ground NN 40404 837 6 water water NN 40404 837 7 of of IN 40404 837 8 the the DT 40404 837 9 region region NN 40404 837 10 instead instead RB 40404 837 11 of of IN 40404 837 12 being be VBG 40404 837 13 increased increase VBN 40404 837 14 by by IN 40404 837 15 it -PRON- PRP 40404 837 16 . . . 40404 838 1 Being be VBG 40404 838 2 supplied supply VBN 40404 838 3 chiefly chiefly RB 40404 838 4 by by IN 40404 838 5 the the DT 40404 838 6 run run NN 40404 838 7 - - HYPH 40404 838 8 off off NN 40404 838 9 , , , 40404 838 10 they -PRON- PRP 40404 838 11 wither wither VBP 40404 838 12 at at IN 40404 838 13 times time NNS 40404 838 14 of of IN 40404 838 15 drought drought NN 40404 838 16 to to IN 40404 838 17 a a DT 40404 838 18 mere mere JJ 40404 838 19 trickle trickle NN 40404 838 20 of of IN 40404 838 21 water water NN 40404 838 22 , , , 40404 838 23 to to IN 40404 838 24 a a DT 40404 838 25 chain chain NN 40404 838 26 of of IN 40404 838 27 pools pool NNS 40404 838 28 , , , 40404 838 29 or or CC 40404 838 30 go go VB 40404 838 31 wholly wholly RB 40404 838 32 dry dry JJ 40404 838 33 , , , 40404 838 34 while while IN 40404 838 35 at at IN 40404 838 36 long long JJ 40404 838 37 intervals interval NNS 40404 838 38 rains rain NNS 40404 838 39 fill fill VBP 40404 838 40 their -PRON- PRP$ 40404 838 41 dusty dusty JJ 40404 838 42 beds bed NNS 40404 838 43 with with IN 40404 838 44 sudden sudden JJ 40404 838 45 raging rage VBG 40404 838 46 torrents torrent NNS 40404 838 47 . . . 40404 839 1 Desert desert NN 40404 839 2 rivers river NNS 40404 839 3 therefore therefore RB 40404 839 4 periodically periodically RB 40404 839 5 shorten shorten VBP 40404 839 6 and and CC 40404 839 7 lengthen lengthen VB 40404 839 8 their -PRON- PRP$ 40404 839 9 courses course NNS 40404 839 10 , , , 40404 839 11 withering wither VBG 40404 839 12 back back RP 40404 839 13 at at IN 40404 839 14 times time NNS 40404 839 15 of of IN 40404 839 16 drought drought NN 40404 839 17 for for IN 40404 839 18 scores score NNS 40404 839 19 of of IN 40404 839 20 miles mile NNS 40404 839 21 , , , 40404 839 22 or or CC 40404 839 23 even even RB 40404 839 24 for for IN 40404 839 25 a a DT 40404 839 26 hundred hundred CD 40404 839 27 miles mile NNS 40404 839 28 from from IN 40404 839 29 the the DT 40404 839 30 point point NN 40404 839 31 reached reach VBN 40404 839 32 by by IN 40404 839 33 their -PRON- PRP$ 40404 839 34 waters water NNS 40404 839 35 during during IN 40404 839 36 seasons season NNS 40404 839 37 of of IN 40404 839 38 rain rain NN 40404 839 39 . . . 40404 840 1 = = NFP 40404 840 2 The the DT 40404 840 3 geological geological JJ 40404 840 4 work work NN 40404 840 5 of of IN 40404 840 6 streams.= streams.= CD 40404 840 7 The the DT 40404 840 8 work work NN 40404 840 9 of of IN 40404 840 10 streams stream NNS 40404 840 11 is be VBZ 40404 840 12 of of IN 40404 840 13 three three CD 40404 840 14 kinds,--transportation kinds,--transportation NNS 40404 840 15 , , , 40404 840 16 erosion erosion NN 40404 840 17 , , , 40404 840 18 and and CC 40404 840 19 deposition deposition NN 40404 840 20 . . . 40404 841 1 Streams Streams NNP 40404 841 2 _ _ NNP 40404 841 3 transport transport NN 40404 841 4 _ _ IN 40404 841 5 the the DT 40404 841 6 waste waste NN 40404 841 7 of of IN 40404 841 8 the the DT 40404 841 9 land land NN 40404 841 10 ; ; : 40404 841 11 they -PRON- PRP 40404 841 12 wear wear VBP 40404 841 13 , , , 40404 841 14 or or CC 40404 841 15 _ _ NNP 40404 841 16 erode erode NNP 40404 841 17 _ _ NNP 40404 841 18 , , , 40404 841 19 their -PRON- PRP$ 40404 841 20 channels channel NNS 40404 841 21 both both DT 40404 841 22 on on IN 40404 841 23 bed bed NN 40404 841 24 and and CC 40404 841 25 banks bank NNS 40404 841 26 ; ; : 40404 841 27 and and CC 40404 841 28 they -PRON- PRP 40404 841 29 _ _ NNP 40404 841 30 deposit deposit NN 40404 841 31 _ _ NNP 40404 841 32 portions portion NNS 40404 841 33 of of IN 40404 841 34 their -PRON- PRP$ 40404 841 35 load load NN 40404 841 36 from from IN 40404 841 37 time time NN 40404 841 38 to to IN 40404 841 39 time time NN 40404 841 40 along along IN 40404 841 41 their -PRON- PRP$ 40404 841 42 courses course NNS 40404 841 43 , , , 40404 841 44 finally finally RB 40404 841 45 laying lay VBG 40404 841 46 it -PRON- PRP 40404 841 47 down down RP 40404 841 48 in in IN 40404 841 49 the the DT 40404 841 50 sea sea NN 40404 841 51 . . . 40404 842 1 Most Most JJS 40404 842 2 of of IN 40404 842 3 the the DT 40404 842 4 work work NN 40404 842 5 of of IN 40404 842 6 streams stream NNS 40404 842 7 is be VBZ 40404 842 8 done do VBN 40404 842 9 at at IN 40404 842 10 times time NNS 40404 842 11 of of IN 40404 842 12 flood flood NN 40404 842 13 . . . 40404 843 1 Transportation transportation NN 40404 843 2 = = NFP 40404 843 3 The the DT 40404 843 4 invisible invisible JJ 40404 843 5 load load NN 40404 843 6 of of IN 40404 843 7 streams.= streams.= CD 40404 843 8 Of of IN 40404 843 9 the the DT 40404 843 10 waste waste NN 40404 843 11 which which WDT 40404 843 12 a a DT 40404 843 13 river river NN 40404 843 14 transports transport VBZ 40404 843 15 we -PRON- PRP 40404 843 16 may may MD 40404 843 17 consider consider VB 40404 843 18 first first RB 40404 843 19 the the DT 40404 843 20 invisible invisible JJ 40404 843 21 load load NN 40404 843 22 which which WDT 40404 843 23 it -PRON- PRP 40404 843 24 carries carry VBZ 40404 843 25 in in IN 40404 843 26 solution solution NN 40404 843 27 , , , 40404 843 28 supplied supply VBN 40404 843 29 chiefly chiefly RB 40404 843 30 by by IN 40404 843 31 springs spring NNS 40404 843 32 but but CC 40404 843 33 also also RB 40404 843 34 in in IN 40404 843 35 part part NN 40404 843 36 by by IN 40404 843 37 the the DT 40404 843 38 run run NN 40404 843 39 - - HYPH 40404 843 40 off off NN 40404 843 41 and and CC 40404 843 42 from from IN 40404 843 43 the the DT 40404 843 44 solution solution NN 40404 843 45 of of IN 40404 843 46 the the DT 40404 843 47 rocks rock NNS 40404 843 48 of of IN 40404 843 49 its -PRON- PRP$ 40404 843 50 bed bed NN 40404 843 51 . . . 40404 844 1 More More JJR 40404 844 2 than than IN 40404 844 3 half half PDT 40404 844 4 the the DT 40404 844 5 dissolved dissolve VBN 40404 844 6 solids solid NNS 40404 844 7 in in IN 40404 844 8 the the DT 40404 844 9 water water NN 40404 844 10 of of IN 40404 844 11 the the DT 40404 844 12 average average JJ 40404 844 13 river river NN 40404 844 14 consists consist VBZ 40404 844 15 of of IN 40404 844 16 the the DT 40404 844 17 carbonates carbonate NNS 40404 844 18 of of IN 40404 844 19 lime lime NNP 40404 844 20 and and CC 40404 844 21 magnesia magnesia NNP 40404 844 22 ; ; : 40404 844 23 other other JJ 40404 844 24 substances substance NNS 40404 844 25 are be VBP 40404 844 26 gypsum gypsum NN 40404 844 27 , , , 40404 844 28 sodium sodium NN 40404 844 29 sulphate sulphate NN 40404 844 30 ( ( -LRB- 40404 844 31 Glauber Glauber NNP 40404 844 32 's 's POS 40404 844 33 salts salt NNS 40404 844 34 ) ) -RRB- 40404 844 35 , , , 40404 844 36 magnesium magnesium NN 40404 844 37 sulphate sulphate NN 40404 844 38 ( ( -LRB- 40404 844 39 Epsom Epsom NNP 40404 844 40 salts salt NNS 40404 844 41 ) ) -RRB- 40404 844 42 , , , 40404 844 43 sodium sodium NN 40404 844 44 chloride chloride NN 40404 844 45 ( ( -LRB- 40404 844 46 common common JJ 40404 844 47 salt salt NN 40404 844 48 ) ) -RRB- 40404 844 49 , , , 40404 844 50 and and CC 40404 844 51 even even RB 40404 844 52 silica silica NN 40404 844 53 , , , 40404 844 54 the the DT 40404 844 55 least least JJS 40404 844 56 soluble soluble JJ 40404 844 57 of of IN 40404 844 58 the the DT 40404 844 59 common common JJ 40404 844 60 rock rock NN 40404 844 61 - - HYPH 40404 844 62 making make VBG 40404 844 63 minerals mineral NNS 40404 844 64 . . . 40404 845 1 The the DT 40404 845 2 amount amount NN 40404 845 3 of of IN 40404 845 4 this this DT 40404 845 5 invisible invisible JJ 40404 845 6 load load NN 40404 845 7 is be VBZ 40404 845 8 surprisingly surprisingly RB 40404 845 9 large large JJ 40404 845 10 . . . 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the DT 40404 847 21 sand sand NN 40404 847 22 and and CC 40404 847 23 gravel gravel NN 40404 847 24 and and CC 40404 847 25 larger large JJR 40404 847 26 stones stone NNS 40404 847 27 which which WDT 40404 847 28 it -PRON- PRP 40404 847 29 pushes push VBZ 40404 847 30 along along IN 40404 847 31 its -PRON- PRP$ 40404 847 32 bed bed NN 40404 847 33 . . . 40404 848 1 Especially especially RB 40404 848 2 in in IN 40404 848 3 times time NNS 40404 848 4 of of IN 40404 848 5 flood flood NN 40404 848 6 one one CD 40404 848 7 may may MD 40404 848 8 note note VB 40404 848 9 the the DT 40404 848 10 muddy muddy JJ 40404 848 11 water water NN 40404 848 12 , , , 40404 848 13 its -PRON- PRP$ 40404 848 14 silt silt NN 40404 848 15 being be VBG 40404 848 16 kept keep VBN 40404 848 17 from from IN 40404 848 18 settling settle VBG 40404 848 19 by by IN 40404 848 20 the the DT 40404 848 21 rolling rolling NN 40404 848 22 , , , 40404 848 23 eddying eddy VBG 40404 848 24 currents current NNS 40404 848 25 ; 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40404 849 13 be be VB 40404 849 14 heard hear VBN 40404 849 15 some some DT 40404 849 16 distance distance NN 40404 849 17 away away RB 40404 849 18 . . . 40404 850 1 The the DT 40404 850 2 amount amount NN 40404 850 3 of of IN 40404 850 4 the the DT 40404 850 5 load load NN 40404 850 6 which which WDT 40404 850 7 a a DT 40404 850 8 stream stream NN 40404 850 9 can can MD 40404 850 10 transport transport VB 40404 850 11 depends depend VBZ 40404 850 12 on on IN 40404 850 13 its -PRON- PRP$ 40404 850 14 velocity velocity NN 40404 850 15 . . . 40404 851 1 A a DT 40404 851 2 current current NN 40404 851 3 of of IN 40404 851 4 two two CD 40404 851 5 thirds third NNS 40404 851 6 of of IN 40404 851 7 a a DT 40404 851 8 mile mile NN 40404 851 9 per per IN 40404 851 10 hour hour NN 40404 851 11 can can MD 40404 851 12 move move VB 40404 851 13 fine fine JJ 40404 851 14 sand sand NN 40404 851 15 , , , 40404 851 16 while while IN 40404 851 17 one one CD 40404 851 18 of of IN 40404 851 19 four four CD 40404 851 20 miles mile NNS 40404 851 21 per per IN 40404 851 22 hour hour NN 40404 851 23 sweeps sweep NNS 40404 851 24 along along IN 40404 851 25 pebbles pebble NNS 40404 851 26 as as RB 40404 851 27 large large JJ 40404 851 28 as as IN 40404 851 29 hen hen NN 40404 851 30 's 's POS 40404 851 31 eggs egg NNS 40404 851 32 . . . 40404 852 1 The the DT 40404 852 2 transporting transport VBG 40404 852 3 power power NN 40404 852 4 of of IN 40404 852 5 a a DT 40404 852 6 stream stream NN 40404 852 7 varies vary VBZ 40404 852 8 as as IN 40404 852 9 the the DT 40404 852 10 sixth sixth JJ 40404 852 11 power power NN 40404 852 12 of of IN 40404 852 13 its -PRON- PRP$ 40404 852 14 velocity velocity NN 40404 852 15 . . . 40404 853 1 If if IN 40404 853 2 its -PRON- PRP$ 40404 853 3 velocity velocity NN 40404 853 4 is be VBZ 40404 853 5 multiplied multiply VBN 40404 853 6 by by IN 40404 853 7 two two CD 40404 853 8 , , , 40404 853 9 its -PRON- PRP$ 40404 853 10 transporting transport VBG 40404 853 11 power power NN 40404 853 12 is be VBZ 40404 853 13 multiplied multiply VBN 40404 853 14 by by IN 40404 853 15 the the DT 40404 853 16 sixth sixth JJ 40404 853 17 power power NN 40404 853 18 of of IN 40404 853 19 two two CD 40404 853 20 : : : 40404 853 21 it -PRON- PRP 40404 853 22 can can MD 40404 853 23 now now RB 40404 853 24 move move VB 40404 853 25 stones stone NNS 40404 853 26 sixty sixty CD 40404 853 27 - - HYPH 40404 853 28 four four CD 40404 853 29 times time NNS 40404 853 30 as as RB 40404 853 31 large large JJ 40404 853 32 as as IN 40404 853 33 it -PRON- PRP 40404 853 34 could could MD 40404 853 35 before before RB 40404 853 36 . . . 40404 854 1 Stones stone NNS 40404 854 2 weigh weigh VBP 40404 854 3 from from IN 40404 854 4 two two CD 40404 854 5 to to IN 40404 854 6 three three CD 40404 854 7 times time NNS 40404 854 8 as as RB 40404 854 9 much much RB 40404 854 10 as as IN 40404 854 11 water water NN 40404 854 12 , , , 40404 854 13 and and CC 40404 854 14 in in IN 40404 854 15 water water NN 40404 854 16 lose lose VB 40404 854 17 the the DT 40404 854 18 weight weight NN 40404 854 19 of of IN 40404 854 20 the the DT 40404 854 21 volume volume NN 40404 854 22 of of IN 40404 854 23 water water NN 40404 854 24 which which WDT 40404 854 25 they -PRON- PRP 40404 854 26 displace displace VBP 40404 854 27 . . . 40404 855 1 What what WDT 40404 855 2 proportion proportion NN 40404 855 3 , , , 40404 855 4 then then RB 40404 855 5 , , , 40404 855 6 of of IN 40404 855 7 their -PRON- PRP$ 40404 855 8 weight weight NN 40404 855 9 in in IN 40404 855 10 air air NN 40404 855 11 do do VBP 40404 855 12 stones stone NNS 40404 855 13 lose lose VB 40404 855 14 when when WRB 40404 855 15 submerged submerge VBN 40404 855 16 ? ? . 40404 856 1 = = NFP 40404 856 2 Measurement Measurement NNP 40404 856 3 of of IN 40404 856 4 stream stream NN 40404 856 5 loads.= loads.= NN 40404 856 6 To to TO 40404 856 7 obtain obtain VB 40404 856 8 the the DT 40404 856 9 total total JJ 40404 856 10 amount amount NN 40404 856 11 of of IN 40404 856 12 waste waste NN 40404 856 13 transported transport VBN 40404 856 14 by by IN 40404 856 15 a a DT 40404 856 16 river river NN 40404 856 17 is be VBZ 40404 856 18 an an DT 40404 856 19 important important JJ 40404 856 20 but but CC 40404 856 21 difficult difficult JJ 40404 856 22 matter matter NN 40404 856 23 . . . 40404 857 1 The the DT 40404 857 2 amount amount NN 40404 857 3 of of IN 40404 857 4 water water NN 40404 857 5 discharged discharge VBN 40404 857 6 must must MD 40404 857 7 first first RB 40404 857 8 be be VB 40404 857 9 found find VBN 40404 857 10 by by IN 40404 857 11 multiplying multiply VBG 40404 857 12 the the DT 40404 857 13 number number NN 40404 857 14 of of IN 40404 857 15 square square JJ 40404 857 16 feet foot NNS 40404 857 17 in in IN 40404 857 18 the the DT 40404 857 19 average average JJ 40404 857 20 cross cross NN 40404 857 21 section section NN 40404 857 22 of of IN 40404 857 23 the the DT 40404 857 24 stream stream NN 40404 857 25 by by IN 40404 857 26 its -PRON- PRP$ 40404 857 27 velocity velocity NN 40404 857 28 per per IN 40404 857 29 second second NN 40404 857 30 , , , 40404 857 31 giving give VBG 40404 857 32 the the DT 40404 857 33 discharge discharge NN 40404 857 34 per per IN 40404 857 35 second second JJ 40404 857 36 in in IN 40404 857 37 cubic cubic JJ 40404 857 38 feet foot NNS 40404 857 39 . . . 40404 858 1 The the DT 40404 858 2 amount amount NN 40404 858 3 of of IN 40404 858 4 silt silt NN 40404 858 5 to to IN 40404 858 6 a a DT 40404 858 7 cubic cubic JJ 40404 858 8 foot foot NN 40404 858 9 of of IN 40404 858 10 water water NN 40404 858 11 is be VBZ 40404 858 12 found find VBN 40404 858 13 by by IN 40404 858 14 filtering filter VBG 40404 858 15 samples sample NNS 40404 858 16 of of IN 40404 858 17 the the DT 40404 858 18 water water NN 40404 858 19 taken take VBN 40404 858 20 from from IN 40404 858 21 different different JJ 40404 858 22 parts part NNS 40404 858 23 of of IN 40404 858 24 the the DT 40404 858 25 stream stream NN 40404 858 26 and and CC 40404 858 27 at at IN 40404 858 28 different different JJ 40404 858 29 times time NNS 40404 858 30 in in IN 40404 858 31 the the DT 40404 858 32 year year NN 40404 858 33 , , , 40404 858 34 and and CC 40404 858 35 drying dry VBG 40404 858 36 and and CC 40404 858 37 weighing weigh VBG 40404 858 38 the the DT 40404 858 39 residues residue NNS 40404 858 40 . . . 40404 859 1 The the DT 40404 859 2 average average JJ 40404 859 3 amount amount NN 40404 859 4 of of IN 40404 859 5 silt silt NN 40404 859 6 to to IN 40404 859 7 the the DT 40404 859 8 cubic cubic JJ 40404 859 9 foot foot NN 40404 859 10 of of IN 40404 859 11 water water NN 40404 859 12 , , , 40404 859 13 multiplied multiply VBN 40404 859 14 by by IN 40404 859 15 the the DT 40404 859 16 number number NN 40404 859 17 of of IN 40404 859 18 cubic cubic JJ 40404 859 19 feet foot NNS 40404 859 20 of of IN 40404 859 21 water water NN 40404 859 22 discharged discharge VBN 40404 859 23 per per IN 40404 859 24 year year NN 40404 859 25 , , , 40404 859 26 gives give VBZ 40404 859 27 the the DT 40404 859 28 total total JJ 40404 859 29 load load NN 40404 859 30 carried carry VBN 40404 859 31 in in IN 40404 859 32 suspension suspension NN 40404 859 33 during during IN 40404 859 34 that that DT 40404 859 35 time time NN 40404 859 36 . . . 40404 860 1 Adding add VBG 40404 860 2 to to IN 40404 860 3 this this DT 40404 860 4 the the DT 40404 860 5 estimated estimate VBN 40404 860 6 amount amount NN 40404 860 7 of of IN 40404 860 8 sand sand NN 40404 860 9 and and CC 40404 860 10 gravel gravel NN 40404 860 11 rolled roll VBN 40404 860 12 along along IN 40404 860 13 the the DT 40404 860 14 bed bed NN 40404 860 15 , , , 40404 860 16 which which WDT 40404 860 17 in in IN 40404 860 18 many many JJ 40404 860 19 swift swift JJ 40404 860 20 rivers river NNS 40404 860 21 greatly greatly RB 40404 860 22 exceeds exceed VBZ 40404 860 23 the the DT 40404 860 24 lighter light JJR 40404 860 25 material material NN 40404 860 26 held hold VBN 40404 860 27 in in IN 40404 860 28 suspension suspension NN 40404 860 29 , , , 40404 860 30 and and CC 40404 860 31 adding add VBG 40404 860 32 also also RB 40404 860 33 the the DT 40404 860 34 total total JJ 40404 860 35 amount amount NN 40404 860 36 of of IN 40404 860 37 dissolved dissolve VBN 40404 860 38 solids solid NNS 40404 860 39 , , , 40404 860 40 we -PRON- PRP 40404 860 41 reach reach VBP 40404 860 42 the the DT 40404 860 43 exceedingly exceedingly RB 40404 860 44 important important JJ 40404 860 45 result result NN 40404 860 46 of of IN 40404 860 47 the the DT 40404 860 48 total total JJ 40404 860 49 load load NN 40404 860 50 of of IN 40404 860 51 waste waste NN 40404 860 52 discharged discharge VBN 40404 860 53 by by IN 40404 860 54 the the DT 40404 860 55 river river NN 40404 860 56 . . . 40404 861 1 Dividing divide VBG 40404 861 2 the the DT 40404 861 3 volume volume NN 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40404 861 41 rate rate NN 40404 861 42 of of IN 40404 861 43 denudation denudation NN 40404 861 44 . . . 40404 862 1 = = NFP 40404 862 2 The the DT 40404 862 3 rate rate NN 40404 862 4 of of IN 40404 862 5 denudation denudation NN 40404 862 6 of of IN 40404 862 7 river river NN 40404 862 8 basins.= basins.= CD 40404 862 9 This this DT 40404 862 10 rate rate NN 40404 862 11 varies vary VBZ 40404 862 12 widely widely RB 40404 862 13 . . . 40404 863 1 The the DT 40404 863 2 Mississippi Mississippi NNP 40404 863 3 basin basin NN 40404 863 4 may may MD 40404 863 5 be be VB 40404 863 6 taken take VBN 40404 863 7 as as IN 40404 863 8 a a DT 40404 863 9 representative representative JJ 40404 863 10 land land NN 40404 863 11 surface surface NN 40404 863 12 because because IN 40404 863 13 of of IN 40404 863 14 the the DT 40404 863 15 varieties variety NNS 40404 863 16 of of IN 40404 863 17 surface surface NN 40404 863 18 , , , 40404 863 19 altitude altitude NN 40404 863 20 and and CC 40404 863 21 slope slope NN 40404 863 22 , , , 40404 863 23 climate climate NN 40404 863 24 , , , 40404 863 25 and and CC 40404 863 26 underlying underlying JJ 40404 863 27 rocks rock NNS 40404 863 28 which which WDT 40404 863 29 are be VBP 40404 863 30 included include VBN 40404 863 31 in in IN 40404 863 32 its -PRON- PRP$ 40404 863 33 great great JJ 40404 863 34 extent extent NN 40404 863 35 . . . 40404 864 1 Careful careful JJ 40404 864 2 measurements measurement NNS 40404 864 3 show show VBP 40404 864 4 that that IN 40404 864 5 the the DT 40404 864 6 Mississippi Mississippi NNP 40404 864 7 basin basin NN 40404 864 8 is be VBZ 40404 864 9 now now RB 40404 864 10 being be VBG 40404 864 11 lowered lower VBN 40404 864 12 at at IN 40404 864 13 a a DT 40404 864 14 rate rate NN 40404 864 15 of of IN 40404 864 16 one one CD 40404 864 17 four four CD 40404 864 18 - - HYPH 40404 864 19 thousandth thousandth NN 40404 864 20 of of IN 40404 864 21 a a DT 40404 864 22 foot foot NN 40404 864 23 a a DT 40404 864 24 year year NN 40404 864 25 , , , 40404 864 26 or or CC 40404 864 27 one one CD 40404 864 28 foot foot NN 40404 864 29 in in IN 40404 864 30 four four CD 40404 864 31 thousand thousand CD 40404 864 32 years year NNS 40404 864 33 . . . 40404 865 1 Taking take VBG 40404 865 2 this this DT 40404 865 3 as as IN 40404 865 4 the the DT 40404 865 5 average average JJ 40404 865 6 rate rate NN 40404 865 7 of of IN 40404 865 8 denudation denudation NN 40404 865 9 for for IN 40404 865 10 the the DT 40404 865 11 land land NN 40404 865 12 surfaces surface NNS 40404 865 13 of of IN 40404 865 14 the the DT 40404 865 15 globe globe NN 40404 865 16 , , , 40404 865 17 estimates estimate NNS 40404 865 18 have have VBP 40404 865 19 been be VBN 40404 865 20 made make VBN 40404 865 21 of of IN 40404 865 22 the the DT 40404 865 23 length length NN 40404 865 24 of of IN 40404 865 25 time time NN 40404 865 26 required require VBN 40404 865 27 at at IN 40404 865 28 this this DT 40404 865 29 rate rate 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866 27 , , , 40404 866 28 if if IN 40404 866 29 the the DT 40404 866 30 present present JJ 40404 866 31 rate rate NN 40404 866 32 of of IN 40404 866 33 denudation denudation NN 40404 866 34 should should MD 40404 866 35 remain remain VB 40404 866 36 unchanged unchanged JJ 40404 866 37 . . . 40404 867 1 But but CC 40404 867 2 even even RB 40404 867 3 if if IN 40404 867 4 no no DT 40404 867 5 movements movement NNS 40404 867 6 of of IN 40404 867 7 the the DT 40404 867 8 earth earth NN 40404 867 9 's 's POS 40404 867 10 crust crust NN 40404 867 11 should should MD 40404 867 12 lift lift VB 40404 867 13 or or CC 40404 867 14 depress depress VB 40404 867 15 the the DT 40404 867 16 continents continent NNS 40404 867 17 , , , 40404 867 18 the the DT 40404 867 19 rate rate NN 40404 867 20 of of IN 40404 867 21 wear wear NN 40404 867 22 and and CC 40404 867 23 the the DT 40404 867 24 removal removal NN 40404 867 25 of of IN 40404 867 26 waste waste NN 40404 867 27 from from IN 40404 867 28 their -PRON- PRP$ 40404 867 29 surfaces surface NNS 40404 867 30 will will MD 40404 867 31 not not RB 40404 867 32 remain remain VB 40404 867 33 the the DT 40404 867 34 same same JJ 40404 867 35 . . . 40404 868 1 It -PRON- PRP 40404 868 2 must must MD 40404 868 3 constantly constantly RB 40404 868 4 decrease decrease VB 40404 868 5 as as IN 40404 868 6 the the DT 40404 868 7 lands land NNS 40404 868 8 are be VBP 40404 868 9 worn wear VBN 40404 868 10 nearer nearer NN 40404 868 11 to to IN 40404 868 12 sea sea NN 40404 868 13 level level NN 40404 868 14 and and CC 40404 868 15 their -PRON- PRP$ 40404 868 16 slopes slope NNS 40404 868 17 become become VBP 40404 868 18 more more RBR 40404 868 19 gentle gentle JJ 40404 868 20 . . . 40404 869 1 The the DT 40404 869 2 length length NN 40404 869 3 of of IN 40404 869 4 time time NN 40404 869 5 required require VBN 40404 869 6 to to TO 40404 869 7 wear wear VB 40404 869 8 them -PRON- PRP 40404 869 9 away away RB 40404 869 10 is be VBZ 40404 869 11 therefore therefore RB 40404 869 12 far far RB 40404 869 13 in in IN 40404 869 14 excess excess NN 40404 869 15 of of IN 40404 869 16 that that DT 40404 869 17 just just RB 40404 869 18 stated state VBD 40404 869 19 . . . 40404 870 1 The the DT 40404 870 2 drainage drainage NN 40404 870 3 area area NN 40404 870 4 of of IN 40404 870 5 the the DT 40404 870 6 Potomac Potomac NNP 40404 870 7 is be VBZ 40404 870 8 11,000 11,000 CD 40404 870 9 square square JJ 40404 870 10 miles mile NNS 40404 870 11 . . . 40404 871 1 The the DT 40404 871 2 silt silt NN 40404 871 3 brought bring VBD 40404 871 4 down down RP 40404 871 5 in in IN 40404 871 6 suspension suspension NN 40404 871 7 in in IN 40404 871 8 a a DT 40404 871 9 year year NN 40404 871 10 would would MD 40404 871 11 cover cover VB 40404 871 12 a a DT 40404 871 13 square square JJ 40404 871 14 mile mile NN 40404 871 15 to to IN 40404 871 16 the the DT 40404 871 17 depth depth NN 40404 871 18 of of IN 40404 871 19 four four CD 40404 871 20 feet foot NNS 40404 871 21 . . . 40404 872 1 At at IN 40404 872 2 what what WDT 40404 872 3 rate rate NN 40404 872 4 is be VBZ 40404 872 5 the the DT 40404 872 6 Potomac Potomac NNP 40404 872 7 basin basin NN 40404 872 8 being be VBG 40404 872 9 lowered lower VBN 40404 872 10 from from IN 40404 872 11 this this DT 40404 872 12 cause cause NN 40404 872 13 alone alone RB 40404 872 14 ? ? . 40404 873 1 It -PRON- PRP 40404 873 2 is be VBZ 40404 873 3 estimated estimate VBN 40404 873 4 that that IN 40404 873 5 the the DT 40404 873 6 Upper Upper NNP 40404 873 7 Ganges Ganges NNPS 40404 873 8 is be VBZ 40404 873 9 lowering lower VBG 40404 873 10 its -PRON- PRP$ 40404 873 11 basin basin NN 40404 873 12 at at IN 40404 873 13 the the DT 40404 873 14 rate rate NN 40404 873 15 of of IN 40404 873 16 one one CD 40404 873 17 foot foot NN 40404 873 18 in in IN 40404 873 19 823 823 CD 40404 873 20 years year NNS 40404 873 21 , , , 40404 873 22 and and CC 40404 873 23 the the DT 40404 873 24 Po Po NNP 40404 873 25 one one CD 40404 873 26 foot foot NN 40404 873 27 in in IN 40404 873 28 720 720 CD 40404 873 29 years year NNS 40404 873 30 . . . 40404 874 1 Why why WRB 40404 874 2 so so RB 40404 874 3 much much RB 40404 874 4 faster fast RBR 40404 874 5 than than IN 40404 874 6 the the DT 40404 874 7 Potomac Potomac NNP 40404 874 8 and and CC 40404 874 9 the the DT 40404 874 10 Mississippi Mississippi NNP 40404 874 11 ? ? . 40404 875 1 = = NFP 40404 875 2 How how WRB 40404 875 3 streams stream NNS 40404 875 4 get get VBP 40404 875 5 their -PRON- PRP$ 40404 875 6 loads.= loads.= NN 40404 875 7 The the DT 40404 875 8 load load NN 40404 875 9 of of IN 40404 875 10 streams stream NNS 40404 875 11 is be VBZ 40404 875 12 derived derive VBN 40404 875 13 from from IN 40404 875 14 a a DT 40404 875 15 number number NN 40404 875 16 of of IN 40404 875 17 sources source NNS 40404 875 18 , , , 40404 875 19 the the DT 40404 875 20 larger large JJR 40404 875 21 part part NN 40404 875 22 being be 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40404 883 2 in in IN 40404 883 3 Bed Bed NNP 40404 883 4 of of IN 40404 883 5 Stream Stream NNP 40404 883 6 , , , 40404 883 7 Ireland Ireland NNP 40404 883 8 ] ] -RRB- 40404 883 9 = = NFP 40404 883 10 Weathering Weathering NNP 40404 883 11 of of IN 40404 883 12 river river NN 40404 883 13 beds.= beds.= CD 40404 883 14 The the DT 40404 883 15 erosion erosion NN 40404 883 16 of of IN 40404 883 17 stream stream NN 40404 883 18 beds bed NNS 40404 883 19 is be VBZ 40404 883 20 greatly greatly RB 40404 883 21 helped help VBN 40404 883 22 by by IN 40404 883 23 the the DT 40404 883 24 work work NN 40404 883 25 of of IN 40404 883 26 the the DT 40404 883 27 weather weather NN 40404 883 28 . . . 40404 884 1 Especially especially RB 40404 884 2 at at IN 40404 884 3 low low JJ 40404 884 4 water water NN 40404 884 5 more more RBR 40404 884 6 or or CC 40404 884 7 less less JJR 40404 884 8 of of IN 40404 884 9 the the DT 40404 884 10 bed bed NN 40404 884 11 is be VBZ 40404 884 12 exposed expose VBN 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here RB 40404 900 2 the the DT 40404 900 3 force force NN 40404 900 4 of of IN 40404 900 5 the the DT 40404 900 6 falling fall VBG 40404 900 7 water water NN 40404 900 8 is be VBZ 40404 900 9 sufficient sufficient JJ 40404 900 10 to to TO 40404 900 11 move move VB 40404 900 12 about about IN 40404 900 13 the the DT 40404 900 14 fallen fall VBN 40404 900 15 blocks block NNS 40404 900 16 of of IN 40404 900 17 limestone limestone NN 40404 900 18 and and CC 40404 900 19 use use VB 40404 900 20 them -PRON- PRP 40404 900 21 in in IN 40404 900 22 the the DT 40404 900 23 excavation excavation NN 40404 900 24 of of IN 40404 900 25 the the DT 40404 900 26 shale shale NN 40404 900 27 of of IN 40404 900 28 the the DT 40404 900 29 bed bed NN 40404 900 30 . . . 40404 901 1 At at IN 40404 901 2 the the DT 40404 901 3 American American NNP 40404 901 4 Falls Falls NNP 40404 901 5 the the DT 40404 901 6 lesser less JJR 40404 901 7 branch branch NN 40404 901 8 of of IN 40404 901 9 the the DT 40404 901 10 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901 48 to to IN 40404 901 49 pieces piece NNS 40404 901 50 and and CC 40404 901 51 remove remove VB 40404 901 52 . . . 40404 902 1 A a DT 40404 902 2 series series NN 40404 902 3 of of IN 40404 902 4 surveys survey NNS 40404 902 5 have have VBP 40404 902 6 determined determine VBN 40404 902 7 that that IN 40404 902 8 from from IN 40404 902 9 1842 1842 CD 40404 902 10 to to IN 40404 902 11 1890 1890 CD 40404 902 12 the the DT 40404 902 13 Horseshoe Horseshoe NNP 40404 902 14 Falls Falls NNP 40404 902 15 retreated retreat VBD 40404 902 16 at at IN 40404 902 17 the the DT 40404 902 18 rate rate NN 40404 902 19 of of IN 40404 902 20 2.18 2.18 CD 40404 902 21 feet foot NNS 40404 902 22 per per IN 40404 902 23 year year NN 40404 902 24 , , , 40404 902 25 while while IN 40404 902 26 the the DT 40404 902 27 American American NNP 40404 902 28 Falls Falls NNP 40404 902 29 retreated retreat VBD 40404 902 30 at at IN 40404 902 31 the the DT 40404 902 32 rate rate NN 40404 902 33 of of IN 40404 902 34 0.64 0.64 CD 40404 902 35 feet foot NNS 40404 902 36 in in IN 40404 902 37 the the DT 40404 902 38 same same JJ 40404 902 39 period period NN 40404 902 40 . . . 40404 903 1 We -PRON- PRP 40404 903 2 can can MD 40404 903 3 not not RB 40404 903 4 doubt doubt VB 40404 903 5 that that IN 40404 903 6 the the DT 40404 903 7 same same JJ 40404 903 8 agency agency NN 40404 903 9 which which WDT 40404 903 10 is be VBZ 40404 903 11 now now RB 40404 903 12 lengthening lengthen VBG 40404 903 13 the the DT 40404 903 14 gorge gorge NN 40404 903 15 at at IN 40404 903 16 this this DT 40404 903 17 rapid rapid JJ 40404 903 18 rate rate NN 40404 903 19 has have VBZ 40404 903 20 cut cut VBN 40404 903 21 it -PRON- PRP 40404 903 22 back back VB 40404 903 23 its -PRON- PRP$ 40404 903 24 entire entire JJ 40404 903 25 length length NN 40404 903 26 of of IN 40404 903 27 seven seven CD 40404 903 28 miles mile NNS 40404 903 29 . . . 40404 904 1 While while IN 40404 904 2 Niagara Niagara NNP 40404 904 3 Falls Falls NNP 40404 904 4 have have VBP 40404 904 5 been be VBN 40404 904 6 cutting cut VBG 40404 904 7 back back RP 40404 904 8 a a DT 40404 904 9 gorge gorge NN 40404 904 10 seven seven CD 40404 904 11 miles mile NNS 40404 904 12 long long JJ 40404 904 13 and and CC 40404 904 14 from from IN 40404 904 15 two two CD 40404 904 16 hundred hundred CD 40404 904 17 to to IN 40404 904 18 three three CD 40404 904 19 hundred hundred CD 40404 904 20 feet foot NNS 40404 904 21 deep deep JJ 40404 904 22 , , , 40404 904 23 the the DT 40404 904 24 river river NN 40404 904 25 above above IN 40404 904 26 the the DT 40404 904 27 Falls Falls NNP 40404 904 28 has have VBZ 40404 904 29 eroded erode VBN 40404 904 30 its -PRON- PRP$ 40404 904 31 bed bed NN 40404 904 32 scarcely scarcely RB 40404 904 33 below below IN 40404 904 34 the the DT 40404 904 35 level level NN 40404 904 36 of of IN 40404 904 37 the the DT 40404 904 38 upland upland NN 40404 904 39 on on IN 40404 904 40 which which WDT 40404 904 41 it -PRON- PRP 40404 904 42 flows flow VBZ 40404 904 43 . . . 40404 905 1 Like like IN 40404 905 2 all all DT 40404 905 3 streams stream NNS 40404 905 4 which which WDT 40404 905 5 are be VBP 40404 905 6 the the DT 40404 905 7 outlets outlet NNS 40404 905 8 of of IN 40404 905 9 lakes lake NNS 40404 905 10 , , , 40404 905 11 the the DT 40404 905 12 Niagara Niagara NNP 40404 905 13 flows flow VBZ 40404 905 14 out out IN 40404 905 15 of of IN 40404 905 16 Lake Lake NNP 40404 905 17 Erie Erie NNP 40404 905 18 clear clear JJ 40404 905 19 of of IN 40404 905 20 sediment sediment NN 40404 905 21 , , , 40404 905 22 as as IN 40404 905 23 from from IN 40404 905 24 a a DT 40404 905 25 settling settle VBG 40404 905 26 basin basin NN 40404 905 27 , , , 40404 905 28 and and CC 40404 905 29 carries carry VBZ 40404 905 30 no no DT 40404 905 31 tools tool NNS 40404 905 32 with with IN 40404 905 33 which which WDT 40404 905 34 to to TO 40404 905 35 abrade abrade VB 40404 905 36 its -PRON- PRP$ 40404 905 37 bed bed NN 40404 905 38 . . . 40404 906 1 We -PRON- PRP 40404 906 2 may may MD 40404 906 3 infer infer VB 40404 906 4 from from IN 40404 906 5 this this DT 40404 906 6 instance instance NN 40404 906 7 how how WRB 40404 906 8 slight slight JJ 40404 906 9 is be VBZ 40404 906 10 the the DT 40404 906 11 erosive erosive JJ 40404 906 12 power power NN 40404 906 13 of of IN 40404 906 14 clear clear JJ 40404 906 15 water water NN 40404 906 16 on on IN 40404 906 17 hard hard JJ 40404 906 18 rock rock NN 40404 906 19 . . . 40404 907 1 [ [ -LRB- 40404 907 2 Illustration illustration NN 40404 907 3 : : : 40404 907 4 Fig Fig NNP 40404 907 5 . . . 40404 908 1 39 39 CD 40404 908 2 . . . 40404 909 1 Longitudinal Longitudinal NNP 40404 909 2 Section Section NNP 40404 909 3 of of IN 40404 909 4 Niagara Niagara NNP 40404 909 5 Gorge Gorge NNP 40404 909 6 Black Black NNP 40404 909 7 , , , 40404 909 8 water water NN 40404 909 9 ; ; : 40404 909 10 _ _ NNP 40404 909 11 F F NNP 40404 909 12 _ _ NNP 40404 909 13 , , , 40404 909 14 falls fall VBZ 40404 909 15 ; ; : 40404 909 16 _ _ NNP 40404 909 17 R R NNP 40404 909 18 _ _ NNP 40404 909 19 , , , 40404 909 20 rapids rapids NNP 40404 909 21 ; ; : 40404 909 22 _ _ NNP 40404 909 23 W W NNP 40404 909 24 _ _ NNP 40404 909 25 , , , 40404 909 26 whirlpool whirlpool NN 40404 909 27 ; ; : 40404 909 28 _ _ NNP 40404 909 29 E E NNP 40404 909 30 _ _ NNP 40404 909 31 , , , 40404 909 32 escarpment escarpment NN 40404 909 33 ; ; : 40404 909 34 _ _ NNP 40404 909 35 N N NNP 40404 909 36 _ _ NNP 40404 909 37 , , , 40404 909 38 north north NN 40404 909 39 ; ; : 40404 909 40 _ _ NNP 40404 909 41 S S NNP 40404 909 42 _ _ NNP 40404 909 43 , , , 40404 909 44 south south NNP 40404 909 45 ] ] -RRB- 40404 909 46 Assuming assume VBG 40404 909 47 that that IN 40404 909 48 the the DT 40404 909 49 rate rate NN 40404 909 50 of of IN 40404 909 51 recession recession NN 40404 909 52 of of IN 40404 909 53 the the DT 40404 909 54 combined combine VBN 40404 909 55 volumes volume NNS 40404 909 56 of of IN 40404 909 57 the the DT 40404 909 58 American American NNP 40404 909 59 and and CC 40404 909 60 Horseshoe Horseshoe NNP 40404 909 61 Falls Falls NNP 40404 909 62 was be VBD 40404 909 63 three three CD 40404 909 64 feet foot NNS 40404 909 65 a a DT 40404 909 66 year year NN 40404 909 67 below below IN 40404 909 68 Goat Goat NNP 40404 909 69 Island Island NNP 40404 909 70 , , , 40404 909 71 and and CC 40404 909 72 _ _ NNP 40404 909 73 assuming assume VBG 40404 909 74 that that IN 40404 909 75 this this DT 40404 909 76 rate rate NN 40404 909 77 has have VBZ 40404 909 78 been be VBN 40404 909 79 uniform uniform JJ 40404 909 80 in in IN 40404 909 81 the the DT 40404 909 82 past past NN 40404 909 83 _ _ NNP 40404 909 84 , , , 40404 909 85 how how WRB 40404 909 86 long long RB 40404 909 87 is be VBZ 40404 909 88 it -PRON- PRP 40404 909 89 since since IN 40404 909 90 the the DT 40404 909 91 Niagara Niagara NNP 40404 909 92 River River NNP 40404 909 93 fell fall VBD 40404 909 94 over over IN 40404 909 95 the the DT 40404 909 96 edge edge NN 40404 909 97 of of IN 40404 909 98 the the DT 40404 909 99 escarpment escarpment NN 40404 909 100 where where WRB 40404 909 101 now now RB 40404 909 102 is be VBZ 40404 909 103 the the DT 40404 909 104 mouth mouth NN 40404 909 105 of of IN 40404 909 106 the the DT 40404 909 107 present present JJ 40404 909 108 gorge gorge NN 40404 909 109 ? ? . 40404 910 1 The the DT 40404 910 2 profile profile NN 40404 910 3 of of IN 40404 910 4 the the DT 40404 910 5 bed bed NN 40404 910 6 of of IN 40404 910 7 the the DT 40404 910 8 Niagara Niagara NNP 40404 910 9 along along IN 40404 910 10 the the DT 40404 910 11 gorge gorge NN 40404 910 12 ( ( -LRB- 40404 910 13 Fig fig NN 40404 910 14 . . . 40404 911 1 39 39 LS 40404 911 2 ) ) -RRB- 40404 911 3 shows show VBZ 40404 911 4 alternating alternate VBG 40404 911 5 deeps deep NNS 40404 911 6 and and CC 40404 911 7 shallows shallow NNS 40404 911 8 which which WDT 40404 911 9 can can MD 40404 911 10 not not RB 40404 911 11 be be VB 40404 911 12 accounted account VBN 40404 911 13 for for IN 40404 911 14 , , , 40404 911 15 except except IN 40404 911 16 in in IN 40404 911 17 a a DT 40404 911 18 single single JJ 40404 911 19 instance instance NN 40404 911 20 , , , 40404 911 21 by by IN 40404 911 22 the the DT 40404 911 23 relative relative JJ 40404 911 24 hardness hardness NN 40404 911 25 of of IN 40404 911 26 the the DT 40404 911 27 rocks rock NNS 40404 911 28 of of IN 40404 911 29 the the DT 40404 911 30 river river NN 40404 911 31 bed bed NN 40404 911 32 . . . 40404 912 1 The the DT 40404 912 2 deeps deep NNS 40404 912 3 do do VBP 40404 912 4 not not RB 40404 912 5 exceed exceed VB 40404 912 6 that that DT 40404 912 7 at at IN 40404 912 8 the the DT 40404 912 9 foot foot NN 40404 912 10 of of IN 40404 912 11 the the DT 40404 912 12 Horseshoe Horseshoe NNP 40404 912 13 Falls Falls NNP 40404 912 14 at at IN 40404 912 15 the the DT 40404 912 16 present present JJ 40404 912 17 time time NN 40404 912 18 . . . 40404 913 1 When when WRB 40404 913 2 the the DT 40404 913 3 gorge gorge NN 40404 913 4 was be VBD 40404 913 5 being be VBG 40404 913 6 cut cut VBN 40404 913 7 along along IN 40404 913 8 the the DT 40404 913 9 shallows shallow NNS 40404 913 10 , , , 40404 913 11 how how WRB 40404 913 12 did do VBD 40404 913 13 the the DT 40404 913 14 Falls Falls NNP 40404 913 15 compare compare VB 40404 913 16 in in IN 40404 913 17 excavating excavating NN 40404 913 18 power power NN 40404 913 19 , , , 40404 913 20 in in IN 40404 913 21 force force NN 40404 913 22 , , , 40404 913 23 and and CC 40404 913 24 volume volume NN 40404 913 25 with with IN 40404 913 26 the the DT 40404 913 27 Niagara Niagara NNP 40404 913 28 of of IN 40404 913 29 to to IN 40404 913 30 - - HYPH 40404 913 31 day day NN 40404 913 32 ? ? . 40404 914 1 How how WRB 40404 914 2 did do VBD 40404 914 3 the the DT 40404 914 4 rate rate NN 40404 914 5 of of IN 40404 914 6 recession recession NN 40404 914 7 at at IN 40404 914 8 those those DT 40404 914 9 times time NNS 40404 914 10 compare compare VBP 40404 914 11 with with IN 40404 914 12 the the DT 40404 914 13 present present JJ 40404 914 14 rate rate NN 40404 914 15 ? ? . 40404 915 1 Is be VBZ 40404 915 2 the the DT 40404 915 3 assumption assumption NN 40404 915 4 made make VBN 40404 915 5 above above IN 40404 915 6 that that IN 40404 915 7 the the DT 40404 915 8 rate rate NN 40404 915 9 of of IN 40404 915 10 recession recession NN 40404 915 11 has have VBZ 40404 915 12 been be VBN 40404 915 13 uniform uniform JJ 40404 915 14 correct correct JJ 40404 915 15 ? ? . 40404 916 1 The the DT 40404 916 2 first first JJ 40404 916 3 stretch stretch NN 40404 916 4 of of IN 40404 916 5 shallows shallow NNS 40404 916 6 below below IN 40404 916 7 the the DT 40404 916 8 Falls Falls NNP 40404 916 9 causes cause VBZ 40404 916 10 a a DT 40404 916 11 tumultuous tumultuous JJ 40404 916 12 rapid rapid JJ 40404 916 13 impossible impossible JJ 40404 916 14 to to TO 40404 916 15 sound sound VB 40404 916 16 . . . 40404 917 1 Its -PRON- PRP$ 40404 917 2 depth depth NN 40404 917 3 has have VBZ 40404 917 4 been be VBN 40404 917 5 estimated estimate VBN 40404 917 6 at at IN 40404 917 7 thirty thirty CD 40404 917 8 - - HYPH 40404 917 9 five five CD 40404 917 10 feet foot NNS 40404 917 11 . . . 40404 918 1 From from IN 40404 918 2 what what WP 40404 918 3 data datum NNS 40404 918 4 could could MD 40404 918 5 such such PDT 40404 918 6 an an DT 40404 918 7 estimate estimate NN 40404 918 8 be be VB 40404 918 9 made make VBN 40404 918 10 ? ? . 40404 919 1 Suggest suggest VB 40404 919 2 a a DT 40404 919 3 reason reason NN 40404 919 4 why why WRB 40404 919 5 the the DT 40404 919 6 Horseshoe Horseshoe NNP 40404 919 7 Falls Falls NNP 40404 919 8 are be VBP 40404 919 9 convex convex NNP 40404 919 10 upstream upstream NNP 40404 919 11 . . . 40404 920 1 At at IN 40404 920 2 the the DT 40404 920 3 present present JJ 40404 920 4 rate rate NN 40404 920 5 of of IN 40404 920 6 recession recession NN 40404 920 7 which which WDT 40404 920 8 will will MD 40404 920 9 reach reach VB 40404 920 10 the the DT 40404 920 11 head head NN 40404 920 12 of of IN 40404 920 13 Goat Goat NNP 40404 920 14 Island Island NNP 40404 920 15 the the DT 40404 920 16 sooner soon RBR 40404 920 17 , , , 40404 920 18 the the DT 40404 920 19 American american JJ 40404 920 20 or or CC 40404 920 21 the the DT 40404 920 22 Horseshoe Horseshoe NNP 40404 920 23 Falls Falls NNP 40404 920 24 ? ? . 40404 921 1 What what WP 40404 921 2 will will MD 40404 921 3 be be VB 40404 921 4 the the DT 40404 921 5 fate fate NN 40404 921 6 of of IN 40404 921 7 the the DT 40404 921 8 Falls Falls NNP 40404 921 9 left leave VBD 40404 921 10 behind behind RB 40404 921 11 when when WRB 40404 921 12 the the DT 40404 921 13 other other JJ 40404 921 14 has have VBZ 40404 921 15 passed pass VBN 40404 921 16 beyond beyond IN 40404 921 17 the the DT 40404 921 18 head head NN 40404 921 19 of of IN 40404 921 20 the the DT 40404 921 21 island island NN 40404 921 22 ? ? . 40404 922 1 The the DT 40404 922 2 rate rate NN 40404 922 3 at at IN 40404 922 4 which which WDT 40404 922 5 a a DT 40404 922 6 stream stream NN 40404 922 7 erodes erode VBZ 40404 922 8 its -PRON- PRP$ 40404 922 9 bed bed NN 40404 922 10 depends depend VBZ 40404 922 11 in in IN 40404 922 12 part part NN 40404 922 13 upon upon IN 40404 922 14 the the DT 40404 922 15 nature nature NN 40404 922 16 of of IN 40404 922 17 the the DT 40404 922 18 rocks rock NNS 40404 922 19 over over IN 40404 922 20 which which WDT 40404 922 21 it -PRON- PRP 40404 922 22 flows flow VBZ 40404 922 23 . . . 40404 923 1 Will Will MD 40404 923 2 a a DT 40404 923 3 stream stream NN 40404 923 4 deepen deepen VB 40404 923 5 its -PRON- PRP$ 40404 923 6 channel channel NN 40404 923 7 more more RBR 40404 923 8 rapidly rapidly RB 40404 923 9 on on IN 40404 923 10 massive massive JJ 40404 923 11 or or CC 40404 923 12 on on IN 40404 923 13 thin thin JJ 40404 923 14 - - HYPH 40404 923 15 bedded bedded JJ 40404 923 16 and and CC 40404 923 17 close close RB 40404 923 18 - - HYPH 40404 923 19 jointed jointed JJ 40404 923 20 rocks rock NNS 40404 923 21 ? ? . 40404 924 1 on on IN 40404 924 2 horizontal horizontal JJ 40404 924 3 strata stratum NNS 40404 924 4 or or CC 40404 924 5 on on IN 40404 924 6 strata strata NNP 40404 924 7 steeply steeply RB 40404 924 8 inclined inclined JJ 40404 924 9 ? ? . 40404 925 1 [ [ -LRB- 40404 925 2 Illustration illustration NN 40404 925 3 : : : 40404 925 4 Fig Fig NNP 40404 925 5 . . . 40404 926 1 40 40 CD 40404 926 2 . . . 40404 927 1 A a DT 40404 927 2 Stream Stream NNP 40404 927 3 in in IN 40404 927 4 Scotland Scotland NNP 40404 927 5 In in IN 40404 927 6 what what WDT 40404 927 7 ways way NNS 40404 927 8 is be VBZ 40404 927 9 the the DT 40404 927 10 bed bed NN 40404 927 11 now now RB 40404 927 12 being be VBG 40404 927 13 deepened deepen VBN 40404 927 14 ? ? . 40404 927 15 ] ] -RRB- 40404 928 1 Deposition Deposition NNP 40404 928 2 While while IN 40404 928 3 the the DT 40404 928 4 river river NN 40404 928 5 carries carry VBZ 40404 928 6 its -PRON- PRP$ 40404 928 7 invisible invisible JJ 40404 928 8 load load NN 40404 928 9 of of IN 40404 928 10 dissolved dissolved JJ 40404 928 11 rock rock NN 40404 928 12 on on RB 40404 928 13 without without IN 40404 928 14 stop stop NN 40404 928 15 to to IN 40404 928 16 the the DT 40404 928 17 sea sea NN 40404 928 18 , , , 40404 928 19 its -PRON- PRP$ 40404 928 20 load load NN 40404 928 21 of of IN 40404 928 22 visible visible JJ 40404 928 23 waste waste NN 40404 928 24 is be VBZ 40404 928 25 subject subject JJ 40404 928 26 to to IN 40404 928 27 many many JJ 40404 928 28 delays delay NNS 40404 928 29 en en IN 40404 928 30 route route NN 40404 928 31 . . . 40404 929 1 Now now RB 40404 929 2 and and CC 40404 929 3 again again RB 40404 929 4 it -PRON- PRP 40404 929 5 is be VBZ 40404 929 6 laid lay VBN 40404 929 7 aside aside RB 40404 929 8 , , , 40404 929 9 to to TO 40404 929 10 be be VB 40404 929 11 picked pick VBN 40404 929 12 up up RP 40404 929 13 later later RB 40404 929 14 and and CC 40404 929 15 carried carry VBD 40404 929 16 some some DT 40404 929 17 distance distance NN 40404 929 18 farther farther RB 40404 929 19 on on IN 40404 929 20 its -PRON- PRP$ 40404 929 21 way way NN 40404 929 22 . . . 40404 930 1 One one CD 40404 930 2 of of IN 40404 930 3 the the DT 40404 930 4 most most RBS 40404 930 5 striking striking JJ 40404 930 6 features feature NNS 40404 930 7 of of IN 40404 930 8 the the DT 40404 930 9 river river NN 40404 930 10 therefore therefore RB 40404 930 11 is be VBZ 40404 930 12 the the DT 40404 930 13 waste waste NN 40404 930 14 accumulated accumulate VBN 40404 930 15 along along IN 40404 930 16 its -PRON- PRP$ 40404 930 17 course course NN 40404 930 18 , , , 40404 930 19 in in IN 40404 930 20 bars bar NNS 40404 930 21 and and CC 40404 930 22 islands island NNS 40404 930 23 in in IN 40404 930 24 the the DT 40404 930 25 channel channel NN 40404 930 26 , , , 40404 930 27 beneath beneath IN 40404 930 28 its -PRON- PRP$ 40404 930 29 bed bed NN 40404 930 30 , , , 40404 930 31 and and CC 40404 930 32 in in IN 40404 930 33 flood flood NN 40404 930 34 plains plain NNS 40404 930 35 along along IN 40404 930 36 its -PRON- PRP$ 40404 930 37 banks bank NNS 40404 930 38 . . . 40404 931 1 All all PDT 40404 931 2 this this DT 40404 931 3 _ _ NNP 40404 931 4 alluvium alluvium NN 40404 931 5 _ _ NNP 40404 931 6 , , , 40404 931 7 to to TO 40404 931 8 use use VB 40404 931 9 a a DT 40404 931 10 general general JJ 40404 931 11 term term NN 40404 931 12 for for IN 40404 931 13 river river NN 40404 931 14 deposits deposit NNS 40404 931 15 , , , 40404 931 16 with with IN 40404 931 17 which which WDT 40404 931 18 the the DT 40404 931 19 valley valley NN 40404 931 20 is be VBZ 40404 931 21 cumbered cumber VBN 40404 931 22 is be VBZ 40404 931 23 really really RB 40404 931 24 en en IN 40404 931 25 route route NN 40404 931 26 to to IN 40404 931 27 the the DT 40404 931 28 sea sea NN 40404 931 29 ; ; : 40404 931 30 it -PRON- PRP 40404 931 31 is be VBZ 40404 931 32 only only RB 40404 931 33 temporarily temporarily RB 40404 931 34 laid lay VBN 40404 931 35 aside aside RB 40404 931 36 to to TO 40404 931 37 resume resume VB 40404 931 38 its -PRON- PRP$ 40404 931 39 journey journey NN 40404 931 40 later later RB 40404 931 41 on on RB 40404 931 42 . . . 40404 932 1 Constantly constantly RB 40404 932 2 the the DT 40404 932 3 river river NN 40404 932 4 is be VBZ 40404 932 5 destroying destroy VBG 40404 932 6 and and CC 40404 932 7 rebuilding rebuild VBG 40404 932 8 its -PRON- PRP$ 40404 932 9 alluvial alluvial JJ 40404 932 10 deposits deposit NNS 40404 932 11 , , , 40404 932 12 here here RB 40404 932 13 cutting cut VBG 40404 932 14 and and CC 40404 932 15 there there RB 40404 932 16 depositing deposit VBG 40404 932 17 along along IN 40404 932 18 its -PRON- PRP$ 40404 932 19 banks bank NNS 40404 932 20 , , , 40404 932 21 here here RB 40404 932 22 eroding erode VBG 40404 932 23 and and CC 40404 932 24 there there RB 40404 932 25 building build VBG 40404 932 26 a a DT 40404 932 27 bar bar NN 40404 932 28 , , , 40404 932 29 here here RB 40404 932 30 excavating excavate VBG 40404 932 31 its -PRON- PRP$ 40404 932 32 bed bed NN 40404 932 33 and and CC 40404 932 34 there there RB 40404 932 35 filling fill VBG 40404 932 36 it -PRON- PRP 40404 932 37 up up RP 40404 932 38 , , , 40404 932 39 and and CC 40404 932 40 at at IN 40404 932 41 all all DT 40404 932 42 times time NNS 40404 932 43 carrying carry VBG 40404 932 44 the the DT 40404 932 45 material material NN 40404 932 46 picked pick VBD 40404 932 47 up up RP 40404 932 48 at at IN 40404 932 49 one one CD 40404 932 50 point point NN 40404 932 51 some some DT 40404 932 52 distance distance NN 40404 932 53 on on IN 40404 932 54 downstream downstream JJ 40404 932 55 before before IN 40404 932 56 depositing deposit VBG 40404 932 57 it -PRON- PRP 40404 932 58 at at IN 40404 932 59 another another DT 40404 932 60 . . . 40404 933 1 [ [ -LRB- 40404 933 2 Illustration illustration NN 40404 933 3 : : : 40404 933 4 Fig Fig NNP 40404 933 5 . . . 40404 934 1 41 41 CD 40404 934 2 . . . 40404 935 1 Sand Sand NNP 40404 935 2 Bar Bar NNP 40404 935 3 deposited deposit VBN 40404 935 4 by by IN 40404 935 5 Stream Stream NNP 40404 935 6 , , , 40404 935 7 showing show VBG 40404 935 8 Cross Cross NNP 40404 935 9 Bedding Bedding NNP 40404 935 10 ] ] -RRB- 40404 935 11 These these DT 40404 935 12 deposits deposit NNS 40404 935 13 are be VBP 40404 935 14 laid lay VBN 40404 935 15 down down RP 40404 935 16 by by IN 40404 935 17 slackening slacken VBG 40404 935 18 currents current NNS 40404 935 19 where where WRB 40404 935 20 the the DT 40404 935 21 velocity velocity NN 40404 935 22 of of IN 40404 935 23 the the DT 40404 935 24 stream stream NN 40404 935 25 is be VBZ 40404 935 26 checked check VBN 40404 935 27 , , , 40404 935 28 as as IN 40404 935 29 on on IN 40404 935 30 the the DT 40404 935 31 inner inner JJ 40404 935 32 side side NN 40404 935 33 of of IN 40404 935 34 curves curve NNS 40404 935 35 , , , 40404 935 36 and and CC 40404 935 37 where where WRB 40404 935 38 the the DT 40404 935 39 slope slope NN 40404 935 40 of of IN 40404 935 41 the the DT 40404 935 42 bed bed NN 40404 935 43 is be VBZ 40404 935 44 diminished diminish VBN 40404 935 45 , , , 40404 935 46 and and CC 40404 935 47 in in IN 40404 935 48 the the DT 40404 935 49 lee lee NNP 40404 935 50 of of IN 40404 935 51 islands island NNS 40404 935 52 , , , 40404 935 53 bridge bridge NN 40404 935 54 piers pier NNS 40404 935 55 and and CC 40404 935 56 projecting project VBG 40404 935 57 points point NNS 40404 935 58 of of IN 40404 935 59 land land NN 40404 935 60 . . . 40404 936 1 How how WRB 40404 936 2 slight slight JJ 40404 936 3 is be VBZ 40404 936 4 the the DT 40404 936 5 check check NN 40404 936 6 required require VBN 40404 936 7 to to TO 40404 936 8 cause cause VB 40404 936 9 a a DT 40404 936 10 current current NN 40404 936 11 to to TO 40404 936 12 drop drop VB 40404 936 13 a a DT 40404 936 14 large large JJ 40404 936 15 part part NN 40404 936 16 of of IN 40404 936 17 its -PRON- PRP$ 40404 936 18 load load NN 40404 936 19 may may MD 40404 936 20 be be VB 40404 936 21 inferred infer VBN 40404 936 22 from from IN 40404 936 23 the the DT 40404 936 24 law law NN 40404 936 25 of of IN 40404 936 26 the the DT 40404 936 27 relation relation NN 40404 936 28 of of IN 40404 936 29 the the DT 40404 936 30 transporting transport VBG 40404 936 31 power power NN 40404 936 32 to to IN 40404 936 33 the the DT 40404 936 34 velocity velocity NN 40404 936 35 . . . 40404 937 1 If if IN 40404 937 2 the the DT 40404 937 3 velocity velocity NN 40404 937 4 is be VBZ 40404 937 5 decreased decrease VBN 40404 937 6 one one CD 40404 937 7 half half NN 40404 937 8 , , , 40404 937 9 the the DT 40404 937 10 current current NN 40404 937 11 can can MD 40404 937 12 move move VB 40404 937 13 fragments fragment NNS 40404 937 14 but but CC 40404 937 15 one one CD 40404 937 16 sixty sixty CD 40404 937 17 - - HYPH 40404 937 18 fourth fourth NN 40404 937 19 the the DT 40404 937 20 size size NN 40404 937 21 of of IN 40404 937 22 those those DT 40404 937 23 which which WDT 40404 937 24 it -PRON- PRP 40404 937 25 could could MD 40404 937 26 move move VB 40404 937 27 before before RB 40404 937 28 , , , 40404 937 29 and and CC 40404 937 30 must must MD 40404 937 31 drop drop VB 40404 937 32 all all PDT 40404 937 33 those those DT 40404 937 34 of of IN 40404 937 35 larger large JJR 40404 937 36 size size NN 40404 937 37 . . . 40404 938 1 Will Will MD 40404 938 2 a a DT 40404 938 3 river river NN 40404 938 4 deposit deposit NN 40404 938 5 more more JJR 40404 938 6 at at IN 40404 938 7 low low JJ 40404 938 8 water water NN 40404 938 9 or or CC 40404 938 10 at at IN 40404 938 11 flood flood NN 40404 938 12 ? ? . 40404 939 1 when when WRB 40404 939 2 rising rise VBG 40404 939 3 or or CC 40404 939 4 when when WRB 40404 939 5 falling fall VBG 40404 939 6 ? ? . 40404 940 1 = = NFP 40404 940 2 Stratification.= Stratification.= NNP 40404 940 3 River River NNP 40404 940 4 deposits deposit NNS 40404 940 5 are be VBP 40404 940 6 stratified stratify VBN 40404 940 7 , , , 40404 940 8 as as IN 40404 940 9 may may MD 40404 940 10 be be VB 40404 940 11 seen see VBN 40404 940 12 in in IN 40404 940 13 any any DT 40404 940 14 fresh fresh JJ 40404 940 15 cut cut NN 40404 940 16 in in IN 40404 940 17 banks bank NNS 40404 940 18 or or CC 40404 940 19 bars bar NNS 40404 940 20 . . . 40404 941 1 The the DT 40404 941 2 waste waste NN 40404 941 3 of of IN 40404 941 4 which which WDT 40404 941 5 they -PRON- PRP 40404 941 6 are be VBP 40404 941 7 built build VBN 40404 941 8 has have VBZ 40404 941 9 been be VBN 40404 941 10 sorted sort VBN 40404 941 11 and and CC 40404 941 12 deposited deposit VBN 40404 941 13 in in IN 40404 941 14 layers layer NNS 40404 941 15 , , , 40404 941 16 one one CD 40404 941 17 above above IN 40404 941 18 another another DT 40404 941 19 ; ; : 40404 941 20 some some DT 40404 941 21 of of IN 40404 941 22 finer fine JJR 40404 941 23 and and CC 40404 941 24 some some DT 40404 941 25 of of IN 40404 941 26 coarser coarser NN 40404 941 27 material material NN 40404 941 28 . . . 40404 942 1 The the DT 40404 942 2 sorting sort VBG 40404 942 3 action action NN 40404 942 4 of of IN 40404 942 5 running running NN 40404 942 6 water water NN 40404 942 7 depends depend VBZ 40404 942 8 on on IN 40404 942 9 the the DT 40404 942 10 fact fact NN 40404 942 11 that that IN 40404 942 12 its -PRON- PRP$ 40404 942 13 transporting transport VBG 40404 942 14 power power NN 40404 942 15 varies vary VBZ 40404 942 16 with with IN 40404 942 17 the the DT 40404 942 18 velocity velocity NN 40404 942 19 . . . 40404 943 1 A a DT 40404 943 2 current current NN 40404 943 3 whose whose WP$ 40404 943 4 diminishing diminish VBG 40404 943 5 velocity velocity NN 40404 943 6 compels compel VBZ 40404 943 7 it -PRON- PRP 40404 943 8 to to TO 40404 943 9 drop drop VB 40404 943 10 coarse coarse JJ 40404 943 11 gravel gravel NN 40404 943 12 , , , 40404 943 13 for for IN 40404 943 14 example example NN 40404 943 15 , , , 40404 943 16 is be VBZ 40404 943 17 still still RB 40404 943 18 able able JJ 40404 943 19 to to TO 40404 943 20 move move VB 40404 943 21 all all PDT 40404 943 22 the the DT 40404 943 23 finer fine JJR 40404 943 24 waste waste NN 40404 943 25 of of IN 40404 943 26 its -PRON- PRP$ 40404 943 27 load load NN 40404 943 28 , , , 40404 943 29 and and CC 40404 943 30 separating separate VBG 40404 943 31 it -PRON- PRP 40404 943 32 from from IN 40404 943 33 the the DT 40404 943 34 gravel gravel NN 40404 943 35 , , , 40404 943 36 carries carry VBZ 40404 943 37 it -PRON- PRP 40404 943 38 on on IN 40404 943 39 downstream downstream JJ 40404 943 40 ; ; : 40404 943 41 while while IN 40404 943 42 at at IN 40404 943 43 a a DT 40404 943 44 later later JJ 40404 943 45 time time NN 40404 943 46 slower slow JJR 40404 943 47 currents current NNS 40404 943 48 may may MD 40404 943 49 deposit deposit VB 40404 943 50 on on IN 40404 943 51 the the DT 40404 943 52 gravel gravel NN 40404 943 53 bed bed NN 40404 943 54 layers layer NNS 40404 943 55 of of IN 40404 943 56 sand sand NN 40404 943 57 , , , 40404 943 58 and and CC 40404 943 59 , , , 40404 943 60 still still RB 40404 943 61 later later RB 40404 943 62 , , , 40404 943 63 slack slack VB 40404 943 64 water water NN 40404 943 65 may may MD 40404 943 66 leave leave VB 40404 943 67 on on IN 40404 943 68 these these DT 40404 943 69 a a DT 40404 943 70 layer layer NN 40404 943 71 of of IN 40404 943 72 mud mud NN 40404 943 73 . . . 40404 944 1 In in IN 40404 944 2 case case NN 40404 944 3 of of IN 40404 944 4 materials material NNS 40404 944 5 lighter light JJR 40404 944 6 than than IN 40404 944 7 water water NN 40404 944 8 the the DT 40404 944 9 transporting transport VBG 40404 944 10 power power NN 40404 944 11 does do VBZ 40404 944 12 not not RB 40404 944 13 depend depend VB 40404 944 14 on on IN 40404 944 15 the the DT 40404 944 16 velocity velocity NN 40404 944 17 , , , 40404 944 18 and and CC 40404 944 19 logs log NNS 40404 944 20 of of IN 40404 944 21 wood wood NN 40404 944 22 , , , 40404 944 23 for for IN 40404 944 24 instance instance NN 40404 944 25 , , , 40404 944 26 are be VBP 40404 944 27 floated float VBN 40404 944 28 on on IN 40404 944 29 to to IN 40404 944 30 the the DT 40404 944 31 sea sea NN 40404 944 32 on on IN 40404 944 33 the the DT 40404 944 34 slowest slow JJS 40404 944 35 as as RB 40404 944 36 well well RB 40404 944 37 as as IN 40404 944 38 on on IN 40404 944 39 the the DT 40404 944 40 most most RBS 40404 944 41 rapid rapid JJ 40404 944 42 currents current NNS 40404 944 43 . . . 40404 945 1 [ [ -LRB- 40404 945 2 Illustration illustration NN 40404 945 3 : : : 40404 945 4 Fig Fig NNP 40404 945 5 . . . 40404 946 1 42 42 CD 40404 946 2 . . . 40404 947 1 Longitudinal Longitudinal NNP 40404 947 2 Section Section NNP 40404 947 3 of of IN 40404 947 4 a a DT 40404 947 5 River River NNP 40404 947 6 Bar Bar NNP 40404 947 7 ] ] -RRB- 40404 947 8 = = VBZ 40404 947 9 Cross Cross NNP 40404 947 10 bedding.= bedding.= NNP 40404 947 11 A a DT 40404 947 12 section section NN 40404 947 13 of of IN 40404 947 14 a a DT 40404 947 15 bar bar NN 40404 947 16 exposed expose VBN 40404 947 17 at at IN 40404 947 18 low low JJ 40404 947 19 water water NN 40404 947 20 may may MD 40404 947 21 show show VB 40404 947 22 that that IN 40404 947 23 it -PRON- PRP 40404 947 24 is be VBZ 40404 947 25 formed form VBN 40404 947 26 of of IN 40404 947 27 layers layer NNS 40404 947 28 of of IN 40404 947 29 sand sand NN 40404 947 30 , , , 40404 947 31 or or CC 40404 947 32 coarser coarser NN 40404 947 33 stuff stuff NN 40404 947 34 , , , 40404 947 35 inclined incline VBD 40404 947 36 downstream downstream RB 40404 947 37 as as IN 40404 947 38 steeply steeply RB 40404 947 39 often often RB 40404 947 40 as as IN 40404 947 41 the the DT 40404 947 42 angle angle NN 40404 947 43 of of IN 40404 947 44 repose repose NN 40404 947 45 of of IN 40404 947 46 the the DT 40404 947 47 material material NN 40404 947 48 . . . 40404 948 1 From from IN 40404 948 2 a a DT 40404 948 3 boat boat NN 40404 948 4 anchored anchor VBN 40404 948 5 over over IN 40404 948 6 the the DT 40404 948 7 lower low JJR 40404 948 8 end end NN 40404 948 9 of of IN 40404 948 10 a a DT 40404 948 11 submerged submerged JJ 40404 948 12 sand sand NN 40404 948 13 bar bar NN 40404 948 14 we -PRON- PRP 40404 948 15 may may MD 40404 948 16 observe observe VB 40404 948 17 the the DT 40404 948 18 way way NN 40404 948 19 in in IN 40404 948 20 which which WDT 40404 948 21 this this DT 40404 948 22 structure structure NN 40404 948 23 , , , 40404 948 24 called call VBD 40404 948 25 cross cross NNP 40404 948 26 bedding bedding NNP 40404 948 27 , , , 40404 948 28 is be VBZ 40404 948 29 produced produce VBN 40404 948 30 . . . 40404 949 1 Sand sand NN 40404 949 2 is be VBZ 40404 949 3 continually continually RB 40404 949 4 pushed push VBN 40404 949 5 over over IN 40404 949 6 the the DT 40404 949 7 edge edge NN 40404 949 8 of of IN 40404 949 9 the the DT 40404 949 10 bar bar NN 40404 949 11 at at IN 40404 949 12 _ _ NNP 40404 949 13 b b NNP 40404 949 14 _ _ NNP 40404 949 15 ( ( -LRB- 40404 949 16 Fig Fig NNP 40404 949 17 . . . 40404 950 1 42 42 CD 40404 950 2 ) ) -RRB- 40404 950 3 and and CC 40404 950 4 comes come VBZ 40404 950 5 to to TO 40404 950 6 rest rest VB 40404 950 7 in in IN 40404 950 8 successive successive JJ 40404 950 9 layers layer NNS 40404 950 10 on on IN 40404 950 11 the the DT 40404 950 12 sloping sloping NN 40404 950 13 surface surface NN 40404 950 14 . . . 40404 951 1 At at IN 40404 951 2 the the DT 40404 951 3 same same JJ 40404 951 4 time time NN 40404 951 5 the the DT 40404 951 6 bar bar NN 40404 951 7 may may MD 40404 951 8 be be VB 40404 951 9 worn wear VBN 40404 951 10 away away RP 40404 951 11 at at IN 40404 951 12 the the DT 40404 951 13 upper upper JJ 40404 951 14 end end NN 40404 951 15 , , , 40404 951 16 _ _ NNP 40404 951 17 a a DT 40404 951 18 _ _ NNP 40404 951 19 , , , 40404 951 20 and and CC 40404 951 21 thus thus RB 40404 951 22 slowly slowly RB 40404 951 23 advance advance VBP 40404 951 24 down down RP 40404 951 25 stream stream NN 40404 951 26 . . . 40404 952 1 While while IN 40404 952 2 the the DT 40404 952 3 deposit deposit NN 40404 952 4 is be VBZ 40404 952 5 thus thus RB 40404 952 6 cross cross NN 40404 952 7 bedded bed VBN 40404 952 8 , , , 40404 952 9 it -PRON- PRP 40404 952 10 constitutes constitute VBZ 40404 952 11 as as IN 40404 952 12 a a DT 40404 952 13 whole whole NN 40404 952 14 a a DT 40404 952 15 stratum stratum NN 40404 952 16 whose whose WP$ 40404 952 17 upper upper JJ 40404 952 18 and and CC 40404 952 19 lower low JJR 40404 952 20 surfaces surface NNS 40404 952 21 are be VBP 40404 952 22 about about RB 40404 952 23 horizontal horizontal JJ 40404 952 24 . . . 40404 953 1 In in IN 40404 953 2 sections section NNS 40404 953 3 of of IN 40404 953 4 river river NN 40404 953 5 banks bank NNS 40404 953 6 one one PRP 40404 953 7 may may MD 40404 953 8 often often RB 40404 953 9 see see VB 40404 953 10 a a DT 40404 953 11 vertical vertical JJ 40404 953 12 succession succession NN 40404 953 13 of of IN 40404 953 14 cross cross JJ 40404 953 15 - - JJ 40404 953 16 bedded bedded JJ 40404 953 17 strata strata NN 40404 953 18 , , , 40404 953 19 each each DT 40404 953 20 built build VBN 40404 953 21 in in IN 40404 953 22 the the DT 40404 953 23 way way NN 40404 953 24 described describe VBN 40404 953 25 . . . 40404 954 1 = = NFP 40404 954 2 Water water NN 40404 954 3 wear.= wear.= VBD 40404 954 4 The the DT 40404 954 5 coarser coarser NN 40404 954 6 material material NN 40404 954 7 of of IN 40404 954 8 river river NN 40404 954 9 deposits deposit NNS 40404 954 10 , , , 40404 954 11 such such 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40404 955 13 friction friction NN 40404 955 14 as as IN 40404 955 15 they -PRON- PRP 40404 955 16 rubbed rub VBD 40404 955 17 against against IN 40404 955 18 one one CD 40404 955 19 another another DT 40404 955 20 and and CC 40404 955 21 the the DT 40404 955 22 rocky rocky JJ 40404 955 23 bed bed NN 40404 955 24 of of IN 40404 955 25 the the DT 40404 955 26 stream stream NN 40404 955 27 . . . 40404 956 1 Experiments experiment NNS 40404 956 2 have have VBP 40404 956 3 shown show VBN 40404 956 4 that that IN 40404 956 5 angular angular JJ 40404 956 6 fragments fragment NNS 40404 956 7 of of IN 40404 956 8 granite granite NN 40404 956 9 lose lose VBP 40404 956 10 nearly nearly RB 40404 956 11 half half PDT 40404 956 12 their -PRON- PRP$ 40404 956 13 weight weight NN 40404 956 14 and and CC 40404 956 15 become become VBP 40404 956 16 well well RB 40404 956 17 rounded rounded JJ 40404 956 18 after after IN 40404 956 19 traveling travel VBG 40404 956 20 fifteen fifteen CD 40404 956 21 miles mile NNS 40404 956 22 in in IN 40404 956 23 rotating rotate VBG 40404 956 24 cylinders cylinder NNS 40404 956 25 partly partly RB 40404 956 26 filled fill VBN 40404 956 27 with with IN 40404 956 28 water water NN 40404 956 29 . . . 40404 957 1 Marbles marble NNS 40404 957 2 are be VBP 40404 957 3 cheaply cheaply RB 40404 957 4 made make VBN 40404 957 5 in in IN 40404 957 6 Germany Germany NNP 40404 957 7 out out IN 40404 957 8 of of IN 40404 957 9 small small JJ 40404 957 10 limestone limestone NN 40404 957 11 cubes cube NNS 40404 957 12 set set VBD 40404 957 13 revolving revolve VBG 40404 957 14 in in IN 40404 957 15 a a DT 40404 957 16 current current NN 40404 957 17 of of IN 40404 957 18 water water NN 40404 957 19 between between IN 40404 957 20 a a DT 40404 957 21 rotating rotate VBG 40404 957 22 bed bed NN 40404 957 23 of of IN 40404 957 24 stone stone NN 40404 957 25 and and CC 40404 957 26 a a DT 40404 957 27 block block NN 40404 957 28 of of IN 40404 957 29 oak oak NN 40404 957 30 , , , 40404 957 31 the the DT 40404 957 32 process process NN 40404 957 33 requiring require VBG 40404 957 34 but but CC 40404 957 35 about about IN 40404 957 36 fifteen fifteen CD 40404 957 37 minutes minute NNS 40404 957 38 . . . 40404 958 1 It -PRON- PRP 40404 958 2 has have VBZ 40404 958 3 been be VBN 40404 958 4 found find VBN 40404 958 5 that that IN 40404 958 6 in in IN 40404 958 7 the the DT 40404 958 8 upper upper JJ 40404 958 9 reaches reach NNS 40404 958 10 of of IN 40404 958 11 mountain mountain NN 40404 958 12 streams stream VBZ 40404 958 13 a a DT 40404 958 14 descent descent NN 40404 958 15 of of IN 40404 958 16 less less JJR 40404 958 17 than than IN 40404 958 18 a a DT 40404 958 19 mile mile NN 40404 958 20 is be VBZ 40404 958 21 sufficient sufficient JJ 40404 958 22 to to TO 40404 958 23 round round VB 40404 958 24 pebbles pebble NNS 40404 958 25 of of IN 40404 958 26 granite granite NN 40404 958 27 . . . 40404 959 1 [ [ -LRB- 40404 959 2 Illustration illustration NN 40404 959 3 : : : 40404 959 4 Fig Fig NNP 40404 959 5 . . . 40404 960 1 43 43 CD 40404 960 2 . . . 40404 961 1 Water water NN 40404 961 2 - - HYPH 40404 961 3 Worn wear VBN 40404 961 4 Pebbles Pebbles NNPS 40404 961 5 , , , 40404 961 6 Upper Upper NNP 40404 961 7 Potomac Potomac NNP 40404 961 8 River River NNP 40404 961 9 , , , 40404 961 10 Maryland Maryland NNP 40404 961 11 ] ] -RRB- 40404 961 12 Land Land NNP 40404 961 13 Forms form NNS 40404 961 14 Due due IN 40404 961 15 To to IN 40404 961 16 River River NNP 40404 961 17 Erosion Erosion NNP 40404 961 18 = = SYM 40404 961 19 River river NN 40404 961 20 valleys.= valleys.= NN 40404 961 21 In in IN 40404 961 22 their -PRON- PRP$ 40404 961 23 courses course NNS 40404 961 24 to to IN 40404 961 25 the the DT 40404 961 26 sea sea NN 40404 961 27 , , , 40404 961 28 rivers river NNS 40404 961 29 follow follow VBP 40404 961 30 valleys valley NNS 40404 961 31 of of IN 40404 961 32 various various JJ 40404 961 33 forms form NNS 40404 961 34 , , , 40404 961 35 some some DT 40404 961 36 shallow shallow JJ 40404 961 37 and and CC 40404 961 38 some some DT 40404 961 39 deep deep JJ 40404 961 40 , , , 40404 961 41 some some DT 40404 961 42 narrow narrow JJ 40404 961 43 and and CC 40404 961 44 some some DT 40404 961 45 wide wide JJ 40404 961 46 . . . 40404 962 1 Since since IN 40404 962 2 rivers river NNS 40404 962 3 are be VBP 40404 962 4 known know VBN 40404 962 5 to to TO 40404 962 6 erode erode VB 40404 962 7 their -PRON- PRP$ 40404 962 8 beds bed NNS 40404 962 9 and and CC 40404 962 10 banks bank NNS 40404 962 11 , , , 40404 962 12 it -PRON- PRP 40404 962 13 is be VBZ 40404 962 14 a a DT 40404 962 15 fair fair JJ 40404 962 16 presumption presumption NN 40404 962 17 that that WDT 40404 962 18 , , , 40404 962 19 aided aid VBN 40404 962 20 by by IN 40404 962 21 the the DT 40404 962 22 weather weather NN 40404 962 23 , , , 40404 962 24 they -PRON- PRP 40404 962 25 have have VBP 40404 962 26 excavated excavate VBN 40404 962 27 the the DT 40404 962 28 valleys valley NNS 40404 962 29 in in IN 40404 962 30 which which WDT 40404 962 31 they -PRON- PRP 40404 962 32 flow flow VBP 40404 962 33 . . . 40404 963 1 Moreover moreover RB 40404 963 2 , , , 40404 963 3 a a DT 40404 963 4 bird's bird's NN 40404 963 5 - - HYPH 40404 963 6 eye eye NN 40404 963 7 view view NN 40404 963 8 or or CC 40404 963 9 a a DT 40404 963 10 map map NN 40404 963 11 of of IN 40404 963 12 a a DT 40404 963 13 region region NN 40404 963 14 shows show VBZ 40404 963 15 the the DT 40404 963 16 significant significant JJ 40404 963 17 fact fact NN 40404 963 18 that that IN 40404 963 19 the the DT 40404 963 20 valleys valley NNS 40404 963 21 of of IN 40404 963 22 a a DT 40404 963 23 system system NN 40404 963 24 unite unite VB 40404 963 25 with with IN 40404 963 26 one one CD 40404 963 27 another another DT 40404 963 28 in in IN 40404 963 29 a a DT 40404 963 30 branch branch NN 40404 963 31 work work NN 40404 963 32 , , , 40404 963 33 as as IN 40404 963 34 twigs twig NNS 40404 963 35 meet meet VBP 40404 963 36 their -PRON- PRP$ 40404 963 37 stems stem NNS 40404 963 38 and and CC 40404 963 39 the the DT 40404 963 40 branches branch NNS 40404 963 41 of of IN 40404 963 42 a a DT 40404 963 43 tree tree NN 40404 963 44 its -PRON- PRP$ 40404 963 45 trunk trunk NN 40404 963 46 . . . 40404 964 1 Each each DT 40404 964 2 valley valley NN 40404 964 3 , , , 40404 964 4 from from IN 40404 964 5 that that DT 40404 964 6 of of IN 40404 964 7 the the DT 40404 964 8 smallest small JJS 40404 964 9 rivulet rivulet NN 40404 964 10 to to IN 40404 964 11 that that DT 40404 964 12 of of IN 40404 964 13 the the DT 40404 964 14 master master NN 40404 964 15 stream stream NN 40404 964 16 , , , 40404 964 17 is be VBZ 40404 964 18 proportionate proportionate JJ 40404 964 19 to to IN 40404 964 20 the the DT 40404 964 21 size size NN 40404 964 22 of of IN 40404 964 23 the the DT 40404 964 24 stream stream NN 40404 964 25 which which WDT 40404 964 26 occupies occupy VBZ 40404 964 27 it -PRON- PRP 40404 964 28 . . . 40404 965 1 With with IN 40404 965 2 a a DT 40404 965 3 few few JJ 40404 965 4 explainable explainable JJ 40404 965 5 exceptions exception NNS 40404 965 6 the the DT 40404 965 7 valleys valley NNS 40404 965 8 of of IN 40404 965 9 tributaries tributary NNS 40404 965 10 join join VBP 40404 965 11 that that DT 40404 965 12 of of IN 40404 965 13 the the DT 40404 965 14 trunk trunk NN 40404 965 15 stream stream NN 40404 965 16 at at IN 40404 965 17 a a DT 40404 965 18 level level NN 40404 965 19 ; ; : 40404 965 20 there there EX 40404 965 21 is be VBZ 40404 965 22 no no DT 40404 965 23 sudden sudden JJ 40404 965 24 descent descent NN 40404 965 25 or or CC 40404 965 26 break break NN 40404 965 27 in in IN 40404 965 28 the the DT 40404 965 29 bed bed NN 40404 965 30 at at IN 40404 965 31 the the DT 40404 965 32 point point NN 40404 965 33 of of IN 40404 965 34 juncture juncture NN 40404 965 35 . . . 40404 966 1 These these DT 40404 966 2 are be VBP 40404 966 3 the the DT 40404 966 4 natural natural JJ 40404 966 5 consequences consequence NNS 40404 966 6 which which WDT 40404 966 7 must must MD 40404 966 8 follow follow VB 40404 966 9 if if IN 40404 966 10 the the DT 40404 966 11 land land NN 40404 966 12 has have VBZ 40404 966 13 long long RB 40404 966 14 been be VBN 40404 966 15 worked work VBN 40404 966 16 upon upon IN 40404 966 17 by by IN 40404 966 18 streams stream NNS 40404 966 19 , , , 40404 966 20 and and CC 40404 966 21 no no DT 40404 966 22 other other JJ 40404 966 23 process process NN 40404 966 24 has have VBZ 40404 966 25 ever ever RB 40404 966 26 been be VBN 40404 966 27 suggested suggest VBN 40404 966 28 which which WDT 40404 966 29 is be VBZ 40404 966 30 competent competent JJ 40404 966 31 to to TO 40404 966 32 produce produce VB 40404 966 33 them -PRON- PRP 40404 966 34 . . . 40404 967 1 We -PRON- PRP 40404 967 2 must must MD 40404 967 3 conclude conclude VB 40404 967 4 that that IN 40404 967 5 valley valley NNP 40404 967 6 systems system NNS 40404 967 7 have have VBP 40404 967 8 been be VBN 40404 967 9 formed form VBN 40404 967 10 by by IN 40404 967 11 the the DT 40404 967 12 river river NN 40404 967 13 systems system NNS 40404 967 14 which which WDT 40404 967 15 drain drain VBP 40404 967 16 them -PRON- PRP 40404 967 17 , , , 40404 967 18 aided aid VBN 40404 967 19 by by IN 40404 967 20 the the DT 40404 967 21 work work NN 40404 967 22 of of IN 40404 967 23 the the DT 40404 967 24 weather weather NN 40404 967 25 ; ; : 40404 967 26 they -PRON- PRP 40404 967 27 are be VBP 40404 967 28 not not RB 40404 967 29 gaping gape VBG 40404 967 30 fissures fissure NNS 40404 967 31 in in IN 40404 967 32 the the DT 40404 967 33 earth earth NN 40404 967 34 's 's POS 40404 967 35 crust crust NN 40404 967 36 , , , 40404 967 37 as as IN 40404 967 38 early early JJ 40404 967 39 observers observer NNS 40404 967 40 imagined imagine VBD 40404 967 41 , , , 40404 967 42 but but CC 40404 967 43 are be VBP 40404 967 44 the the DT 40404 967 45 furrows furrow NNS 40404 967 46 which which WDT 40404 967 47 running running NN 40404 967 48 water water NN 40404 967 49 has have VBZ 40404 967 50 drawn draw VBN 40404 967 51 upon upon IN 40404 967 52 the the DT 40404 967 53 land land NN 40404 967 54 . . . 40404 968 1 As as IN 40404 968 2 valleys valley NNS 40404 968 3 are be VBP 40404 968 4 made make VBN 40404 968 5 by by IN 40404 968 6 the the DT 40404 968 7 slow slow JJ 40404 968 8 wear wear NN 40404 968 9 of of IN 40404 968 10 streams stream NNS 40404 968 11 and and CC 40404 968 12 the the DT 40404 968 13 action action NN 40404 968 14 of of IN 40404 968 15 the the DT 40404 968 16 weather weather NN 40404 968 17 , , , 40404 968 18 they -PRON- PRP 40404 968 19 pass pass VBP 40404 968 20 in in RP 40404 968 21 their -PRON- PRP$ 40404 968 22 development development NN 40404 968 23 through through IN 40404 968 24 successive successive JJ 40404 968 25 stages stage NNS 40404 968 26 , , , 40404 968 27 each each DT 40404 968 28 of of IN 40404 968 29 which which WDT 40404 968 30 has have VBZ 40404 968 31 its -PRON- PRP$ 40404 968 32 own own JJ 40404 968 33 characteristic characteristic JJ 40404 968 34 features feature NNS 40404 968 35 . . . 40404 969 1 We -PRON- PRP 40404 969 2 may may MD 40404 969 3 therefore therefore RB 40404 969 4 classify classify VB 40404 969 5 rivers river NNS 40404 969 6 and and CC 40404 969 7 valleys valley NNS 40404 969 8 according accord VBG 40404 969 9 to to IN 40404 969 10 the the DT 40404 969 11 stage stage NN 40404 969 12 which which WDT 40404 969 13 they -PRON- PRP 40404 969 14 have have VBP 40404 969 15 reached reach VBN 40404 969 16 in in IN 40404 969 17 their -PRON- PRP$ 40404 969 18 life life NN 40404 969 19 history history NN 40404 969 20 from from IN 40404 969 21 infancy infancy NN 40404 969 22 to to IN 40404 969 23 old old JJ 40404 969 24 age age NN 40404 969 25 . . . 40404 970 1 Young Young NNP 40404 970 2 River River NNP 40404 970 3 Valleys valley NNS 40404 970 4 = = NFP 40404 970 5 Infancy.= infancy.= XX 40404 970 6 The the DT 40404 970 7 Red Red NNP 40404 970 8 River River NNP 40404 970 9 of of IN 40404 970 10 the the DT 40404 970 11 North North NNP 40404 970 12 . . . 40404 971 1 A a DT 40404 971 2 region region NN 40404 971 3 in in IN 40404 971 4 northwestern northwestern JJ 40404 971 5 Minnesota Minnesota NNP 40404 971 6 and and CC 40404 971 7 the the DT 40404 971 8 adjacent adjacent JJ 40404 971 9 portions portion NNS 40404 971 10 of of IN 40404 971 11 North North NNP 40404 971 12 Dakota Dakota NNP 40404 971 13 and and CC 40404 971 14 Manitoba Manitoba NNP 40404 971 15 was be VBD 40404 971 16 so so RB 40404 971 17 recently recently RB 40404 971 18 covered cover VBN 40404 971 19 by by IN 40404 971 20 the the DT 40404 971 21 waters water NNS 40404 971 22 of of IN 40404 971 23 an an DT 40404 971 24 extinct extinct JJ 40404 971 25 lake lake NN 40404 971 26 , , , 40404 971 27 known know VBN 40404 971 28 as as IN 40404 971 29 Lake Lake NNP 40404 971 30 Agassiz Agassiz NNP 40404 971 31 , , , 40404 971 32 that that IN 40404 971 33 the the DT 40404 971 34 surface surface NN 40404 971 35 remains remain VBZ 40404 971 36 much much RB 40404 971 37 as as IN 40404 971 38 it -PRON- PRP 40404 971 39 was be VBD 40404 971 40 left leave VBN 40404 971 41 when when WRB 40404 971 42 the the DT 40404 971 43 lake lake NN 40404 971 44 was be VBD 40404 971 45 drained drain VBN 40404 971 46 away away RB 40404 971 47 . . . 40404 972 1 The the DT 40404 972 2 flat flat JJ 40404 972 3 floor floor NN 40404 972 4 , , , 40404 972 5 spread spread VBD 40404 972 6 smooth smooth JJ 40404 972 7 with with IN 40404 972 8 lake lake NN 40404 972 9 - - HYPH 40404 972 10 laid lay VBN 40404 972 11 silts silt NNS 40404 972 12 , , , 40404 972 13 is be VBZ 40404 972 14 still still RB 40404 972 15 a a DT 40404 972 16 plain plain NN 40404 972 17 , , , 40404 972 18 to to IN 40404 972 19 the the DT 40404 972 20 eye eye NN 40404 972 21 as as IN 40404 972 22 level level NN 40404 972 23 as as IN 40404 972 24 the the DT 40404 972 25 sea sea NN 40404 972 26 . . . 40404 973 1 Across across IN 40404 973 2 it -PRON- PRP 40404 973 3 the the DT 40404 973 4 Red Red NNP 40404 973 5 River River NNP 40404 973 6 of of IN 40404 973 7 the the DT 40404 973 8 North North NNP 40404 973 9 and and CC 40404 973 10 its -PRON- PRP$ 40404 973 11 branches branch NNS 40404 973 12 run run VBP 40404 973 13 in in IN 40404 973 14 narrow narrow JJ 40404 973 15 , , , 40404 973 16 ditch ditch NN 40404 973 17 - - HYPH 40404 973 18 like like JJ 40404 973 19 channels channel NNS 40404 973 20 , , , 40404 973 21 steep steep NN 40404 973 22 - - HYPH 40404 973 23 sided sided JJ 40404 973 24 and and CC 40404 973 25 shallow shallow JJ 40404 973 26 , , , 40404 973 27 not not RB 40404 973 28 exceeding exceed VBG 40404 973 29 sixty sixty CD 40404 973 30 feet foot NNS 40404 973 31 in in IN 40404 973 32 depth depth NN 40404 973 33 , , , 40404 973 34 their -PRON- PRP$ 40404 973 35 gradients gradient NNS 40404 973 36 differing differ VBG 40404 973 37 little little RB 40404 973 38 from from IN 40404 973 39 the the DT 40404 973 40 general general JJ 40404 973 41 slopes slope NNS 40404 973 42 of of IN 40404 973 43 the the DT 40404 973 44 region region NN 40404 973 45 . . . 40404 974 1 The the DT 40404 974 2 trunk trunk NN 40404 974 3 streams stream NNS 40404 974 4 have have VBP 40404 974 5 but but CC 40404 974 6 few few JJ 40404 974 7 tributaries tributary NNS 40404 974 8 ; ; : 40404 974 9 the the DT 40404 974 10 river river NN 40404 974 11 system system NN 40404 974 12 , , , 40404 974 13 like like IN 40404 974 14 a a DT 40404 974 15 sapling sapling NN 40404 974 16 with with IN 40404 974 17 few few JJ 40404 974 18 limbs limb NNS 40404 974 19 , , , 40404 974 20 is be VBZ 40404 974 21 still still RB 40404 974 22 undeveloped undeveloped JJ 40404 974 23 . . . 40404 975 1 Along along IN 40404 975 2 the the DT 40404 975 3 banks bank NNS 40404 975 4 of of IN 40404 975 5 the the DT 40404 975 6 trunk trunk NN 40404 975 7 streams stream VBZ 40404 975 8 short short JJ 40404 975 9 gullies gully NNS 40404 975 10 are be VBP 40404 975 11 slowly slowly RB 40404 975 12 lengthening lengthen VBG 40404 975 13 headwards headward NNS 40404 975 14 , , , 40404 975 15 like like IN 40404 975 16 growing grow VBG 40404 975 17 twigs twig NNS 40404 975 18 which which WDT 40404 975 19 are be VBP 40404 975 20 sometime sometime JJ 40404 975 21 to to TO 40404 975 22 become become VB 40404 975 23 large large JJ 40404 975 24 branches branch NNS 40404 975 25 . . . 40404 976 1 [ [ -LRB- 40404 976 2 Illustration illustration NN 40404 976 3 : : : 40404 976 4 Fig Fig NNP 40404 976 5 . . . 40404 977 1 44 44 CD 40404 977 2 . . . 40404 978 1 A a DT 40404 978 2 Young young JJ 40404 978 3 Lacustrine Lacustrine NNP 40404 978 4 Plain Plain NNP 40404 978 5 ; ; : 40404 978 6 the the DT 40404 978 7 Red Red NNP 40404 978 8 River River NNP 40404 978 9 of of IN 40404 978 10 the the DT 40404 978 11 North North NNP 40404 978 12 Scale Scale NNP 40404 978 13 5 5 CD 40404 978 14 inches inch NNS 40404 978 15 = = SYM 40404 978 16 about about RB 40404 978 17 11 11 CD 40404 978 18 miles mile NNS 40404 978 19 . . . 40404 979 1 Contour contour NN 40404 979 2 interval interval NN 40404 979 3 , , , 40404 979 4 20 20 CD 40404 979 5 feet foot NNS 40404 979 6 ] ] -RRB- 40404 979 7 The the DT 40404 979 8 flat flat JJ 40404 979 9 interstream interstream NN 40404 979 10 areas area NNS 40404 979 11 are be VBP 40404 979 12 as as RB 40404 979 13 yet yet RB 40404 979 14 but but CC 40404 979 15 little little JJ 40404 979 16 scored score VBN 40404 979 17 by by IN 40404 979 18 drainage drainage NN 40404 979 19 lines line NNS 40404 979 20 , , , 40404 979 21 and and CC 40404 979 22 in in IN 40404 979 23 wet wet JJ 40404 979 24 weather weather NN 40404 979 25 water water NN 40404 979 26 lingers linger VBZ 40404 979 27 in in IN 40404 979 28 ponds pond NNS 40404 979 29 in in IN 40404 979 30 any any DT 40404 979 31 initial initial JJ 40404 979 32 depressions depression NNS 40404 979 33 on on IN 40404 979 34 the the DT 40404 979 35 plain plain NN 40404 979 36 . . . 40404 980 1 [ [ -LRB- 40404 980 2 Illustration illustration NN 40404 980 3 : : : 40404 980 4 Fig Fig NNP 40404 980 5 . . . 40404 981 1 45 45 CD 40404 981 2 . . . 40404 982 1 A a DT 40404 982 2 Young Young NNP 40404 982 3 River River NNP 40404 982 4 , , , 40404 982 5 Iowa Iowa NNP 40404 982 6 Note Note NNP 40404 982 7 that that IN 40404 982 8 it -PRON- PRP 40404 982 9 has have VBZ 40404 982 10 hardly hardly RB 40404 982 11 begun begin VBN 40404 982 12 to to TO 40404 982 13 cut cut VB 40404 982 14 in in IN 40404 982 15 the the DT 40404 982 16 plain plain NN 40404 982 17 of of IN 40404 982 18 glacial glacial JJ 40404 982 19 drift drift NN 40404 982 20 on on IN 40404 982 21 which which WDT 40404 982 22 it -PRON- PRP 40404 982 23 flows flow VBZ 40404 982 24 ] ] -RRB- 40404 982 25 = = VBZ 40404 982 26 Contours.= contours.= NN 40404 982 27 In in IN 40404 982 28 order order NN 40404 982 29 to to TO 40404 982 30 read read VB 40404 982 31 the the DT 40404 982 32 topographic topographic JJ 40404 982 33 maps map NNS 40404 982 34 of of IN 40404 982 35 the the DT 40404 982 36 text text NN 40404 982 37 - - HYPH 40404 982 38 book book NN 40404 982 39 and and CC 40404 982 40 the the DT 40404 982 41 laboratory laboratory NN 40404 982 42 the the DT 40404 982 43 student student NN 40404 982 44 should should MD 40404 982 45 know know VB 40404 982 46 that that IN 40404 982 47 contours contour NNS 40404 982 48 are be VBP 40404 982 49 lines line NNS 40404 982 50 drawn draw VBN 40404 982 51 on on IN 40404 982 52 maps map NNS 40404 982 53 to to TO 40404 982 54 represent represent VB 40404 982 55 relief relief NN 40404 982 56 , , , 40404 982 57 all all DT 40404 982 58 points point NNS 40404 982 59 on on IN 40404 982 60 any any DT 40404 982 61 given give VBN 40404 982 62 contour contour NN 40404 982 63 being being NN 40404 982 64 of of IN 40404 982 65 equal equal JJ 40404 982 66 height height NN 40404 982 67 above above IN 40404 982 68 sea sea NN 40404 982 69 level level NN 40404 982 70 . . . 40404 983 1 The the DT 40404 983 2 _ _ NNP 40404 983 3 contour contour NN 40404 983 4 interval interval NN 40404 983 5 _ _ NNP 40404 983 6 is be VBZ 40404 983 7 the the DT 40404 983 8 uniform uniform JJ 40404 983 9 vertical vertical JJ 40404 983 10 distance distance NN 40404 983 11 between between IN 40404 983 12 two two CD 40404 983 13 adjacent adjacent JJ 40404 983 14 contours contour NNS 40404 983 15 and and CC 40404 983 16 varies vary VBZ 40404 983 17 on on IN 40404 983 18 different different JJ 40404 983 19 maps map NNS 40404 983 20 . . . 40404 984 1 To to TO 40404 984 2 express express VB 40404 984 3 regions region NNS 40404 984 4 of of IN 40404 984 5 faint faint JJ 40404 984 6 relief relief NN 40404 984 7 a a DT 40404 984 8 contour contour NN 40404 984 9 interval interval NN 40404 984 10 of of IN 40404 984 11 ten ten CD 40404 984 12 or or CC 40404 984 13 twenty twenty CD 40404 984 14 feet foot NNS 40404 984 15 is be VBZ 40404 984 16 commonly commonly RB 40404 984 17 selected select VBN 40404 984 18 ; ; : 40404 984 19 while while IN 40404 984 20 in in IN 40404 984 21 mountainous mountainous JJ 40404 984 22 regions region NNS 40404 984 23 a a DT 40404 984 24 contour contour NN 40404 984 25 interval interval NN 40404 984 26 of of IN 40404 984 27 two two CD 40404 984 28 hundred hundred CD 40404 984 29 and and CC 40404 984 30 fifty fifty CD 40404 984 31 , , , 40404 984 32 five five CD 40404 984 33 hundred hundred CD 40404 984 34 , , , 40404 984 35 or or CC 40404 984 36 even even RB 40404 984 37 one one CD 40404 984 38 thousand thousand CD 40404 984 39 feet foot NNS 40404 984 40 may may MD 40404 984 41 be be VB 40404 984 42 necessary necessary JJ 40404 984 43 in in IN 40404 984 44 order order NN 40404 984 45 that that IN 40404 984 46 the the DT 40404 984 47 contours contour NNS 40404 984 48 may may MD 40404 984 49 not not RB 40404 984 50 be be VB 40404 984 51 too too RB 40404 984 52 crowded crowded JJ 40404 984 53 for for IN 40404 984 54 easy easy JJ 40404 984 55 reading reading NN 40404 984 56 . . . 40404 985 1 Whether whether IN 40404 985 2 a a DT 40404 985 3 river river NN 40404 985 4 begins begin VBZ 40404 985 5 its -PRON- PRP$ 40404 985 6 life life NN 40404 985 7 on on IN 40404 985 8 a a DT 40404 985 9 lake lake NN 40404 985 10 plain plain NN 40404 985 11 , , , 40404 985 12 as as IN 40404 985 13 in in IN 40404 985 14 the the DT 40404 985 15 example example NN 40404 985 16 just just RB 40404 985 17 cited cite VBD 40404 985 18 , , , 40404 985 19 or or CC 40404 985 20 upon upon IN 40404 985 21 a a DT 40404 985 22 coastal coastal JJ 40404 985 23 plain plain NN 40404 985 24 lifted lift VBN 40404 985 25 from from IN 40404 985 26 beneath beneath IN 40404 985 27 the the DT 40404 985 28 sea sea NN 40404 985 29 or or CC 40404 985 30 on on IN 40404 985 31 a a DT 40404 985 32 spread spread NN 40404 985 33 of of IN 40404 985 34 glacial glacial JJ 40404 985 35 drift drift NN 40404 985 36 left leave VBN 40404 985 37 by by IN 40404 985 38 the the DT 40404 985 39 retreat retreat NN 40404 985 40 of of IN 40404 985 41 continental continental JJ 40404 985 42 ice ice NN 40404 985 43 sheets sheet NNS 40404 985 44 , , , 40404 985 45 such such JJ 40404 985 46 as as IN 40404 985 47 covers cover VBZ 40404 985 48 much much JJ 40404 985 49 of of IN 40404 985 50 Canada Canada NNP 40404 985 51 and and CC 40404 985 52 the the DT 40404 985 53 northeastern northeastern JJ 40404 985 54 parts part NNS 40404 985 55 of of IN 40404 985 56 the the DT 40404 985 57 United United NNP 40404 985 58 States States NNP 40404 985 59 , , , 40404 985 60 its -PRON- PRP$ 40404 985 61 infantile infantile JJ 40404 985 62 stage stage NN 40404 985 63 presents present VBZ 40404 985 64 the the DT 40404 985 65 same same JJ 40404 985 66 characteristic characteristic JJ 40404 985 67 features,--a features,--a NNP 40404 985 68 narrow narrow JJ 40404 985 69 and and CC 40404 985 70 shallow shallow JJ 40404 985 71 valley valley NN 40404 985 72 , , , 40404 985 73 with with IN 40404 985 74 undeveloped undeveloped JJ 40404 985 75 tributaries tributary NNS 40404 985 76 and and CC 40404 985 77 undrained undrained JJ 40404 985 78 interstream interstream JJ 40404 985 79 areas area NNS 40404 985 80 . . . 40404 986 1 Ground ground NN 40404 986 2 water water NN 40404 986 3 stands stand VBZ 40404 986 4 high high JJ 40404 986 5 , , , 40404 986 6 and and CC 40404 986 7 , , , 40404 986 8 exuding exude VBG 40404 986 9 in in IN 40404 986 10 the the DT 40404 986 11 undrained undrained JJ 40404 986 12 initial initial JJ 40404 986 13 depressions depression NNS 40404 986 14 , , , 40404 986 15 forms form NNS 40404 986 16 marshes marsh NNS 40404 986 17 and and CC 40404 986 18 lakes lake NNS 40404 986 19 . . . 40404 987 1 [ [ -LRB- 40404 987 2 Illustration illustration NN 40404 987 3 : : : 40404 987 4 Fig Fig NNP 40404 987 5 . . . 40404 988 1 46 46 CD 40404 988 2 . . . 40404 989 1 A a DT 40404 989 2 Young Young NNP 40404 989 3 Drift Drift NNP 40404 989 4 Region Region NNP 40404 989 5 in in IN 40404 989 6 Wisconsin Wisconsin NNP 40404 989 7 Describe Describe NNP 40404 989 8 this this DT 40404 989 9 area area NN 40404 989 10 . . . 40404 990 1 How how WRB 40404 990 2 high high JJ 40404 990 3 are be VBP 40404 990 4 the the DT 40404 990 5 hills hill NNS 40404 990 6 ? ? . 40404 991 1 Are be VBP 40404 991 2 they -PRON- PRP 40404 991 3 such such JJ 40404 991 4 in in IN 40404 991 5 form form NN 40404 991 6 and and CC 40404 991 7 position position NN 40404 991 8 as as IN 40404 991 9 would would MD 40404 991 10 be be VB 40404 991 11 left leave VBN 40404 991 12 by by IN 40404 991 13 stream stream NN 40404 991 14 erosion erosion NN 40404 991 15 ? ? . 40404 992 1 Consult consult VB 40404 992 2 a a DT 40404 992 3 map map NN 40404 992 4 of of IN 40404 992 5 the the DT 40404 992 6 entire entire JJ 40404 992 7 state state NN 40404 992 8 and and CC 40404 992 9 notice notice VB 40404 992 10 that that IN 40404 992 11 the the DT 40404 992 12 Fox Fox NNP 40404 992 13 River River NNP 40404 992 14 finds find VBZ 40404 992 15 its -PRON- PRP$ 40404 992 16 way way NN 40404 992 17 to to IN 40404 992 18 Lake Lake NNP 40404 992 19 Michigan Michigan NNP 40404 992 20 , , , 40404 992 21 while while IN 40404 992 22 the the DT 40404 992 23 Wisconsin Wisconsin NNP 40404 992 24 empties empty VBZ 40404 992 25 into into IN 40404 992 26 the the DT 40404 992 27 Mississippi Mississippi NNP 40404 992 28 . . . 40404 993 1 Describe describe VB 40404 993 2 that that DT 40404 993 3 portion portion NN 40404 993 4 of of IN 40404 993 5 the the DT 40404 993 6 divide divide NN 40404 993 7 here here RB 40404 993 8 shown show VBN 40404 993 9 between between IN 40404 993 10 the the DT 40404 993 11 Mississippi Mississippi NNP 40404 993 12 and and CC 40404 993 13 the the DT 40404 993 14 St. St. NNP 40404 993 15 Lawrence Lawrence NNP 40404 993 16 systems system NNS 40404 993 17 . . . 40404 994 1 Which which WDT 40404 994 2 is be VBZ 40404 994 3 the the DT 40404 994 4 larger large JJR 40404 994 5 river river NN 40404 994 6 , , , 40404 994 7 the the DT 40404 994 8 Wisconsin Wisconsin NNP 40404 994 9 or or CC 40404 994 10 the the DT 40404 994 11 Fox Fox NNP 40404 994 12 ? ? . 40404 995 1 Other other JJ 40404 995 2 things thing NNS 40404 995 3 being be VBG 40404 995 4 equal equal JJ 40404 995 5 , , , 40404 995 6 which which WDT 40404 995 7 may may MD 40404 995 8 be be VB 40404 995 9 expected expect VBN 40404 995 10 to to TO 40404 995 11 deepen deepen VB 40404 995 12 its -PRON- PRP$ 40404 995 13 bed bed NN 40404 995 14 the the DT 40404 995 15 more more RBR 40404 995 16 rapidly rapidly RB 40404 995 17 ? ? . 40404 996 1 What what WDT 40404 996 2 changes change NNS 40404 996 3 are be VBP 40404 996 4 likely likely JJ 40404 996 5 to to TO 40404 996 6 occur occur VB 40404 996 7 when when WRB 40404 996 8 one one CD 40404 996 9 of of IN 40404 996 10 these these DT 40404 996 11 rivers river NNS 40404 996 12 comes come VBZ 40404 996 13 to to TO 40404 996 14 flow flow VB 40404 996 15 at at IN 40404 996 16 a a DT 40404 996 17 lower low JJR 40404 996 18 level level NN 40404 996 19 than than IN 40404 996 20 the the DT 40404 996 21 other other JJ 40404 996 22 ? ? . 40404 997 1 Why why WRB 40404 997 2 have have VBP 40404 997 3 not not RB 40404 997 4 these these DT 40404 997 5 changes change NNS 40404 997 6 occurred occur VBD 40404 997 7 already already RB 40404 997 8 ? ? . 40404 997 9 ] ] -RRB- 40404 998 1 = = NFP 40404 998 2 Lakes.= Lakes.= NNP 40404 998 3 Lakes Lakes NNP 40404 998 4 are be VBP 40404 998 5 perhaps perhaps RB 40404 998 6 the the DT 40404 998 7 most most RBS 40404 998 8 obvious obvious JJ 40404 998 9 of of IN 40404 998 10 these these DT 40404 998 11 fleeting fleeting JJ 40404 998 12 features feature NNS 40404 998 13 of of IN 40404 998 14 infancy infancy NN 40404 998 15 . . . 40404 999 1 They -PRON- PRP 40404 999 2 are be VBP 40404 999 3 short short RB 40404 999 4 - - HYPH 40404 999 5 lived live VBN 40404 999 6 , , , 40404 999 7 for for IN 40404 999 8 their -PRON- PRP$ 40404 999 9 destruction destruction NN 40404 999 10 is be VBZ 40404 999 11 soon soon RB 40404 999 12 accomplished accomplish VBN 40404 999 13 by by IN 40404 999 14 several several JJ 40404 999 15 means mean NNS 40404 999 16 . . . 40404 1000 1 As as IN 40404 1000 2 a a DT 40404 1000 3 river river NN 40404 1000 4 system system NN 40404 1000 5 advances advance VBZ 40404 1000 6 toward toward IN 40404 1000 7 maturity maturity NN 40404 1000 8 the the DT 40404 1000 9 deepening deepen VBG 40404 1000 10 and and CC 40404 1000 11 extending extend VBG 40404 1000 12 valleys valley NNS 40404 1000 13 of of IN 40404 1000 14 the the DT 40404 1000 15 tributaries tributary NNS 40404 1000 16 lower low JJR 40404 1000 17 the the DT 40404 1000 18 ground ground NN 40404 1000 19 - - HYPH 40404 1000 20 water water NN 40404 1000 21 surface surface NN 40404 1000 22 and and CC 40404 1000 23 invade invade VB 40404 1000 24 the the DT 40404 1000 25 undrained undrained JJ 40404 1000 26 depressions depression NNS 40404 1000 27 of of IN 40404 1000 28 the the DT 40404 1000 29 region region NN 40404 1000 30 . . . 40404 1001 1 Lakes lake NNS 40404 1001 2 having have VBG 40404 1001 3 outlets outlet NNS 40404 1001 4 are be VBP 40404 1001 5 drained drain VBN 40404 1001 6 away away RB 40404 1001 7 as as IN 40404 1001 8 their -PRON- PRP$ 40404 1001 9 basin basin NN 40404 1001 10 rims rim NNS 40404 1001 11 are be VBP 40404 1001 12 cut cut VBN 40404 1001 13 down down RP 40404 1001 14 by by IN 40404 1001 15 the the DT 40404 1001 16 outflowing outflowing JJ 40404 1001 17 streams,--a streams,--a NNP 40404 1001 18 slow slow JJ 40404 1001 19 process process NN 40404 1001 20 where where WRB 40404 1001 21 the the DT 40404 1001 22 rim rim NN 40404 1001 23 is be VBZ 40404 1001 24 of of IN 40404 1001 25 hard hard JJ 40404 1001 26 rock rock NN 40404 1001 27 , , , 40404 1001 28 but but CC 40404 1001 29 a a DT 40404 1001 30 rapid rapid JJ 40404 1001 31 one one NN 40404 1001 32 where where WRB 40404 1001 33 it -PRON- PRP 40404 1001 34 is be VBZ 40404 1001 35 of of IN 40404 1001 36 soft soft JJ 40404 1001 37 material material NN 40404 1001 38 such such JJ 40404 1001 39 as as IN 40404 1001 40 glacial glacial JJ 40404 1001 41 drift drift NN 40404 1001 42 . . . 40404 1002 1 Lakes lake NNS 40404 1002 2 are be VBP 40404 1002 3 effaced efface VBN 40404 1002 4 also also RB 40404 1002 5 by by IN 40404 1002 6 the the DT 40404 1002 7 filling filling NN 40404 1002 8 of of IN 40404 1002 9 their -PRON- PRP$ 40404 1002 10 basins basin NNS 40404 1002 11 . . . 40404 1003 1 Inflowing inflowe VBG 40404 1003 2 streams stream NNS 40404 1003 3 and and CC 40404 1003 4 the the DT 40404 1003 5 wash wash NN 40404 1003 6 of of IN 40404 1003 7 rains rain NNS 40404 1003 8 bring bring VBP 40404 1003 9 in in RP 40404 1003 10 waste waste NN 40404 1003 11 . . . 40404 1004 1 Waves wave NNS 40404 1004 2 abrade abrade VBP 40404 1004 3 the the DT 40404 1004 4 shore shore NN 40404 1004 5 and and CC 40404 1004 6 strew strew VBD 40404 1004 7 the the DT 40404 1004 8 débris débris NN 40404 1004 9 worn wear VBN 40404 1004 10 from from IN 40404 1004 11 it -PRON- PRP 40404 1004 12 over over IN 40404 1004 13 the the DT 40404 1004 14 lake lake NNP 40404 1004 15 bed bed NN 40404 1004 16 . . . 40404 1005 1 Shallow shallow JJ 40404 1005 2 lakes lake NNS 40404 1005 3 are be VBP 40404 1005 4 often often RB 40404 1005 5 filled fill VBN 40404 1005 6 with with IN 40404 1005 7 organic organic JJ 40404 1005 8 matter matter NN 40404 1005 9 from from IN 40404 1005 10 decaying decay VBG 40404 1005 11 vegetation vegetation NN 40404 1005 12 . . . 40404 1006 1 Does do VBZ 40404 1006 2 the the DT 40404 1006 3 outflowing outflowe VBG 40404 1006 4 stream stream NN 40404 1006 5 , , , 40404 1006 6 from from IN 40404 1006 7 a a DT 40404 1006 8 lake lake NN 40404 1006 9 carry carry NN 40404 1006 10 sediment sediment NN 40404 1006 11 ? ? . 40404 1007 1 How how WRB 40404 1007 2 does do VBZ 40404 1007 3 this this DT 40404 1007 4 fact fact NN 40404 1007 5 affect affect VB 40404 1007 6 its -PRON- PRP$ 40404 1007 7 erosive erosive JJ 40404 1007 8 power power NN 40404 1007 9 on on IN 40404 1007 10 hard hard JJ 40404 1007 11 rock rock NN 40404 1007 12 ? ? . 40404 1008 1 on on IN 40404 1008 2 loose loose JJ 40404 1008 3 material material NN 40404 1008 4 ? ? . 40404 1009 1 Lake Lake NNP 40404 1009 2 Geneva Geneva NNP 40404 1009 3 is be VBZ 40404 1009 4 a a DT 40404 1009 5 well well RB 40404 1009 6 - - HYPH 40404 1009 7 known know VBN 40404 1009 8 example example NN 40404 1009 9 of of IN 40404 1009 10 a a DT 40404 1009 11 lake lake NN 40404 1009 12 in in IN 40404 1009 13 process process NN 40404 1009 14 of of IN 40404 1009 15 obliteration obliteration NN 40404 1009 16 . . . 40404 1010 1 The the DT 40404 1010 2 inflowing inflowe VBG 40404 1010 3 Rhone Rhone NNP 40404 1010 4 has have VBZ 40404 1010 5 already already RB 40404 1010 6 displaced displace VBN 40404 1010 7 the the DT 40404 1010 8 waters water NNS 40404 1010 9 of of IN 40404 1010 10 the the DT 40404 1010 11 lake lake NN 40404 1010 12 for for IN 40404 1010 13 a a DT 40404 1010 14 length length NN 40404 1010 15 of of IN 40404 1010 16 twenty twenty CD 40404 1010 17 miles mile NNS 40404 1010 18 with with IN 40404 1010 19 the the DT 40404 1010 20 waste waste NN 40404 1010 21 brought bring VBD 40404 1010 22 down down RP 40404 1010 23 from from IN 40404 1010 24 the the DT 40404 1010 25 high high JJ 40404 1010 26 Alps Alps NNPS 40404 1010 27 . . . 40404 1011 1 For for IN 40404 1011 2 this this DT 40404 1011 3 distance distance NN 40404 1011 4 there there EX 40404 1011 5 extends extend VBZ 40404 1011 6 up up RP 40404 1011 7 the the DT 40404 1011 8 Rhone Rhone NNP 40404 1011 9 Valley Valley NNP 40404 1011 10 an an DT 40404 1011 11 alluvial alluvial JJ 40404 1011 12 plain plain NN 40404 1011 13 , , , 40404 1011 14 which which WDT 40404 1011 15 has have VBZ 40404 1011 16 grown grow VBN 40404 1011 17 lakeward lakeward RB 40404 1011 18 at at IN 40404 1011 19 the the DT 40404 1011 20 rate rate NN 40404 1011 21 of of IN 40404 1011 22 a a DT 40404 1011 23 mile mile NN 40404 1011 24 and and CC 40404 1011 25 a a DT 40404 1011 26 half half NN 40404 1011 27 since since IN 40404 1011 28 Roman roman JJ 40404 1011 29 times time NNS 40404 1011 30 , , , 40404 1011 31 as as IN 40404 1011 32 proved prove VBN 40404 1011 33 by by IN 40404 1011 34 the the DT 40404 1011 35 distance distance NN 40404 1011 36 inland inland RB 40404 1011 37 at at IN 40404 1011 38 which which WDT 40404 1011 39 a a DT 40404 1011 40 Roman roman JJ 40404 1011 41 port port NN 40404 1011 42 now now RB 40404 1011 43 stands stand VBZ 40404 1011 44 . . . 40404 1012 1 [ [ -LRB- 40404 1012 2 Illustration illustration NN 40404 1012 3 : : : 40404 1012 4 Fig Fig NNP 40404 1012 5 . . . 40404 1013 1 47 47 CD 40404 1013 2 . . . 40404 1014 1 A a DT 40404 1014 2 Small Small NNP 40404 1014 3 Lake Lake NNP 40404 1014 4 being be VBG 40404 1014 5 broadened broaden VBN 40404 1014 6 and and CC 40404 1014 7 shoaled shoal VBN 40404 1014 8 by by IN 40404 1014 9 Wave Wave NNP 40404 1014 10 Wear Wear NNP 40404 1014 11 _ _ NNP 40404 1014 12 ls ls NNP 40404 1014 13 _ _ NNP 40404 1014 14 , , , 40404 1014 15 lake lake NNP 40404 1014 16 surface surface NN 40404 1014 17 ; ; : 40404 1014 18 dotted dotted JJ 40404 1014 19 line line NN 40404 1014 20 , , , 40404 1014 21 initial initial JJ 40404 1014 22 shore shore NN 40404 1014 23 ; ; : 40404 1014 24 _ _ NNP 40404 1014 25 b b NNP 40404 1014 26 _ _ NNP 40404 1014 27 , , , 40404 1014 28 fill fill NN 40404 1014 29 made make VBN 40404 1014 30 of of IN 40404 1014 31 material material NN 40404 1014 32 taken take VBN 40404 1014 33 from from IN 40404 1014 34 _ _ NNP 40404 1014 35 a a DT 40404 1014 36 _ _ NNP 40404 1014 37 ] ] -RRB- 40404 1014 38 How how WRB 40404 1014 39 rapidly rapidly RB 40404 1014 40 a a DT 40404 1014 41 lake lake NN 40404 1014 42 may may MD 40404 1014 43 be be VB 40404 1014 44 silted silt VBN 40404 1014 45 up up RP 40404 1014 46 under under IN 40404 1014 47 exceptionally exceptionally RB 40404 1014 48 favorable favorable JJ 40404 1014 49 conditions condition NNS 40404 1014 50 is be VBZ 40404 1014 51 illustrated illustrate VBN 40404 1014 52 by by IN 40404 1014 53 the the DT 40404 1014 54 fact fact NN 40404 1014 55 that that IN 40404 1014 56 over over IN 40404 1014 57 the the DT 40404 1014 58 bottom bottom NN 40404 1014 59 of of IN 40404 1014 60 the the DT 40404 1014 61 artificial artificial JJ 40404 1014 62 lake lake NN 40404 1014 63 , , , 40404 1014 64 of of IN 40404 1014 65 thirty thirty CD 40404 1014 66 - - HYPH 40404 1014 67 five five CD 40404 1014 68 square square JJ 40404 1014 69 miles mile NNS 40404 1014 70 , , , 40404 1014 71 formed form VBN 40404 1014 72 behind behind IN 40404 1014 73 the the DT 40404 1014 74 great great JJ 40404 1014 75 dam dam NN 40404 1014 76 across across IN 40404 1014 77 the the DT 40404 1014 78 Colorado Colorado NNP 40404 1014 79 River River NNP 40404 1014 80 at at IN 40404 1014 81 Austin Austin NNP 40404 1014 82 , , , 40404 1014 83 Texas Texas NNP 40404 1014 84 , , , 40404 1014 85 sediments sediment VBZ 40404 1014 86 thirty thirty CD 40404 1014 87 - - HYPH 40404 1014 88 nine nine CD 40404 1014 89 feet foot NNS 40404 1014 90 deep deep RB 40404 1014 91 gathered gather VBD 40404 1014 92 in in IN 40404 1014 93 seven seven CD 40404 1014 94 years year NNS 40404 1014 95 . . . 40404 1015 1 Lake Lake NNP 40404 1015 2 Mendota Mendota NNP 40404 1015 3 , , , 40404 1015 4 one one CD 40404 1015 5 of of IN 40404 1015 6 the the DT 40404 1015 7 many many JJ 40404 1015 8 beautiful beautiful JJ 40404 1015 9 lakes lake NNS 40404 1015 10 of of IN 40404 1015 11 southern southern JJ 40404 1015 12 Wisconsin Wisconsin NNP 40404 1015 13 , , , 40404 1015 14 is be VBZ 40404 1015 15 rapidly rapidly RB 40404 1015 16 cutting cut VBG 40404 1015 17 back back RP 40404 1015 18 the the DT 40404 1015 19 soft soft JJ 40404 1015 20 glacial glacial JJ 40404 1015 21 drift drift NN 40404 1015 22 of of IN 40404 1015 23 its -PRON- PRP$ 40404 1015 24 shores shore NNS 40404 1015 25 by by IN 40404 1015 26 means mean NNS 40404 1015 27 of of IN 40404 1015 28 the the DT 40404 1015 29 abrasion abrasion NN 40404 1015 30 of of IN 40404 1015 31 its -PRON- PRP$ 40404 1015 32 waves wave NNS 40404 1015 33 . . . 40404 1016 1 While while IN 40404 1016 2 the the DT 40404 1016 3 shallow shallow JJ 40404 1016 4 basin basin NN 40404 1016 5 is be VBZ 40404 1016 6 thus thus RB 40404 1016 7 broadened broaden VBN 40404 1016 8 , , , 40404 1016 9 it -PRON- PRP 40404 1016 10 is be VBZ 40404 1016 11 also also RB 40404 1016 12 being be VBG 40404 1016 13 filled fill VBN 40404 1016 14 with with IN 40404 1016 15 the the DT 40404 1016 16 waste waste NN 40404 1016 17 ; ; : 40404 1016 18 and and CC 40404 1016 19 the the DT 40404 1016 20 time time NN 40404 1016 21 is be VBZ 40404 1016 22 brought bring VBN 40404 1016 23 nearer nearer RB 40404 1016 24 when when WRB 40404 1016 25 it -PRON- PRP 40404 1016 26 will will MD 40404 1016 27 be be VB 40404 1016 28 so so RB 40404 1016 29 shoaled shoal VBN 40404 1016 30 that that IN 40404 1016 31 vegetation vegetation NN 40404 1016 32 can can MD 40404 1016 33 complete complete VB 40404 1016 34 the the DT 40404 1016 35 work work NN 40404 1016 36 of of IN 40404 1016 37 its -PRON- PRP$ 40404 1016 38 effacement effacement NN 40404 1016 39 . . . 40404 1017 1 [ [ -LRB- 40404 1017 2 Illustration illustration NN 40404 1017 3 : : : 40404 1017 4 Fig Fig NNP 40404 1017 5 . . . 40404 1018 1 48 48 CD 40404 1018 2 . . . 40404 1019 1 A a DT 40404 1019 2 Lake Lake NNP 40404 1019 3 well well RB 40404 1019 4 - - HYPH 40404 1019 5 nigh nigh NN 40404 1019 6 effaced efface VBN 40404 1019 7 , , , 40404 1019 8 Montana Montana NNP 40404 1019 9 By by IN 40404 1019 10 what what WDT 40404 1019 11 means mean VBZ 40404 1019 12 is be VBZ 40404 1019 13 the the DT 40404 1019 14 lake lake NN 40404 1019 15 bed bed NN 40404 1019 16 being be VBG 40404 1019 17 filled fill VBN 40404 1019 18 ? ? . 40404 1019 19 ] ] -RRB- 40404 1020 1 Along along IN 40404 1020 2 the the DT 40404 1020 3 margin margin NN 40404 1020 4 of of IN 40404 1020 5 a a DT 40404 1020 6 shallow shallow JJ 40404 1020 7 lake lake NN 40404 1020 8 mosses moss NNS 40404 1020 9 , , , 40404 1020 10 water water NN 40404 1020 11 lilies lily NNS 40404 1020 12 , , , 40404 1020 13 grasses grass NNS 40404 1020 14 , , , 40404 1020 15 and and CC 40404 1020 16 other other JJ 40404 1020 17 water water NN 40404 1020 18 - - HYPH 40404 1020 19 loving love VBG 40404 1020 20 plants plant NNS 40404 1020 21 grow grow VBP 40404 1020 22 luxuriantly luxuriantly RB 40404 1020 23 . . . 40404 1021 1 As as IN 40404 1021 2 their -PRON- PRP$ 40404 1021 3 decaying decaying NN 40404 1021 4 remains remain VBZ 40404 1021 5 accumulate accumulate JJ 40404 1021 6 on on IN 40404 1021 7 the the DT 40404 1021 8 bottom bottom NN 40404 1021 9 , , , 40404 1021 10 the the DT 40404 1021 11 ring ring NN 40404 1021 12 of of IN 40404 1021 13 marsh marsh NNP 40404 1021 14 broadens broadens NNP 40404 1021 15 inwards inwards NNPS 40404 1021 16 , , , 40404 1021 17 the the DT 40404 1021 18 lake lake NN 40404 1021 19 narrows narrow VBZ 40404 1021 20 gradually gradually RB 40404 1021 21 to to IN 40404 1021 22 a a DT 40404 1021 23 small small JJ 40404 1021 24 pond pond NN 40404 1021 25 set set VBN 40404 1021 26 in in IN 40404 1021 27 the the DT 40404 1021 28 midst midst NN 40404 1021 29 of of IN 40404 1021 30 a a DT 40404 1021 31 wide wide JJ 40404 1021 32 bog bog NN 40404 1021 33 , , , 40404 1021 34 and and CC 40404 1021 35 finally finally RB 40404 1021 36 disappears disappear VBZ 40404 1021 37 . . . 40404 1022 1 All all DT 40404 1022 2 stages stage NNS 40404 1022 3 in in IN 40404 1022 4 this this DT 40404 1022 5 process process NN 40404 1022 6 of of IN 40404 1022 7 extinction extinction NN 40404 1022 8 may may MD 40404 1022 9 be be VB 40404 1022 10 seen see VBN 40404 1022 11 among among IN 40404 1022 12 the the DT 40404 1022 13 countless countless JJ 40404 1022 14 lakelets lakelet NNS 40404 1022 15 which which WDT 40404 1022 16 occupy occupy VBP 40404 1022 17 sags sag NNS 40404 1022 18 in in IN 40404 1022 19 the the DT 40404 1022 20 recent recent JJ 40404 1022 21 sheets sheet NNS 40404 1022 22 of of IN 40404 1022 23 glacial glacial JJ 40404 1022 24 drift drift NN 40404 1022 25 in in IN 40404 1022 26 the the DT 40404 1022 27 northern northern JJ 40404 1022 28 states state NNS 40404 1022 29 ; ; : 40404 1022 30 and and CC 40404 1022 31 more more RBR 40404 1022 32 numerous numerous JJ 40404 1022 33 than than IN 40404 1022 34 the the DT 40404 1022 35 lakes lake NNS 40404 1022 36 which which WDT 40404 1022 37 still still RB 40404 1022 38 remain remain VBP 40404 1022 39 are be VBP 40404 1022 40 those those DT 40404 1022 41 already already RB 40404 1022 42 thus thus RB 40404 1022 43 filled fill VBN 40404 1022 44 with with IN 40404 1022 45 carbonaceous carbonaceous JJ 40404 1022 46 matter matter NN 40404 1022 47 derived derive VBN 40404 1022 48 from from IN 40404 1022 49 the the DT 40404 1022 50 carbon carbon NN 40404 1022 51 dioxide dioxide NN 40404 1022 52 of of IN 40404 1022 53 the the DT 40404 1022 54 atmosphere atmosphere NN 40404 1022 55 . . . 40404 1023 1 Such such JJ 40404 1023 2 fossil fossil NN 40404 1023 3 lakes lake NNS 40404 1023 4 are be VBP 40404 1023 5 marked mark VBN 40404 1023 6 by by IN 40404 1023 7 swamps swamp NNS 40404 1023 8 or or CC 40404 1023 9 level level NN 40404 1023 10 meadows meadow NNS 40404 1023 11 underlain underlain JJ 40404 1023 12 with with IN 40404 1023 13 muck muck NN 40404 1023 14 . . . 40404 1024 1 [ [ -LRB- 40404 1024 2 Illustration illustration NN 40404 1024 3 : : : 40404 1024 4 Fig Fig NNP 40404 1024 5 . . . 40404 1025 1 49 49 CD 40404 1025 2 . . . 40404 1026 1 A a DT 40404 1026 2 Level Level NNP 40404 1026 3 Meadow Meadow NNP 40404 1026 4 , , , 40404 1026 5 Scotland Scotland NNP 40404 1026 6 Explain Explain NNP 40404 1026 7 its -PRON- PRP$ 40404 1026 8 origin origin NN 40404 1026 9 . . . 40404 1027 1 What what WP 40404 1027 2 will will MD 40404 1027 3 be be VB 40404 1027 4 its -PRON- PRP$ 40404 1027 5 future future NN 40404 1027 6 ? ? . 40404 1027 7 ] ] -RRB- 40404 1028 1 = = NFP 40404 1028 2 The the DT 40404 1028 3 advance advance NN 40404 1028 4 to to IN 40404 1028 5 maturity.= maturity.= CD 40404 1028 6 The the DT 40404 1028 7 infantile infantile JJ 40404 1028 8 stage stage NN 40404 1028 9 is be VBZ 40404 1028 10 brief brief JJ 40404 1028 11 . . . 40404 1029 1 As as IN 40404 1029 2 a a DT 40404 1029 3 river river NN 40404 1029 4 advances advance VBZ 40404 1029 5 toward toward IN 40404 1029 6 maturity maturity NN 40404 1029 7 the the DT 40404 1029 8 initial initial JJ 40404 1029 9 depressions depression NNS 40404 1029 10 , , , 40404 1029 11 the the DT 40404 1029 12 lake lake NN 40404 1029 13 basins basin NNS 40404 1029 14 of of IN 40404 1029 15 its -PRON- PRP$ 40404 1029 16 area area NN 40404 1029 17 , , , 40404 1029 18 are be VBP 40404 1029 19 gradually gradually RB 40404 1029 20 effaced efface VBN 40404 1029 21 . . . 40404 1030 1 By by IN 40404 1030 2 the the DT 40404 1030 3 furrowing furrow VBG 40404 1030 4 action action NN 40404 1030 5 of of IN 40404 1030 6 the the DT 40404 1030 7 rain rain NN 40404 1030 8 wash wash NN 40404 1030 9 and and CC 40404 1030 10 the the DT 40404 1030 11 head head NN 40404 1030 12 ward ward NNP 40404 1030 13 lengthening lengthening NNP 40404 1030 14 , , , 40404 1030 15 of of IN 40404 1030 16 tributaries tributary NNS 40404 1030 17 a a DT 40404 1030 18 branchwork branchwork NN 40404 1030 19 of of IN 40404 1030 20 drainage drainage NN 40404 1030 21 channels channel NNS 40404 1030 22 grows grow VBZ 40404 1030 23 until until IN 40404 1030 24 it -PRON- PRP 40404 1030 25 covers cover VBZ 40404 1030 26 the the DT 40404 1030 27 entire entire JJ 40404 1030 28 area area NN 40404 1030 29 , , , 40404 1030 30 and and CC 40404 1030 31 not not RB 40404 1030 32 an an DT 40404 1030 33 acre acre NN 40404 1030 34 is be VBZ 40404 1030 35 left leave VBN 40404 1030 36 on on IN 40404 1030 37 which which WDT 40404 1030 38 the the DT 40404 1030 39 fallen fall VBN 40404 1030 40 raindrop raindrop NN 40404 1030 41 does do VBZ 40404 1030 42 not not RB 40404 1030 43 find find VB 40404 1030 44 already already RB 40404 1030 45 cut cut VBN 40404 1030 46 for for IN 40404 1030 47 it -PRON- PRP 40404 1030 48 an an DT 40404 1030 49 uninterrupted uninterrupted JJ 40404 1030 50 downward downward JJ 40404 1030 51 path path NN 40404 1030 52 which which WDT 40404 1030 53 leads lead VBZ 40404 1030 54 it -PRON- PRP 40404 1030 55 on on RP 40404 1030 56 by by IN 40404 1030 57 way way NN 40404 1030 58 of of IN 40404 1030 59 gully gully RB 40404 1030 60 , , , 40404 1030 61 brook brook NN 40404 1030 62 , , , 40404 1030 63 and and CC 40404 1030 64 river river NN 40404 1030 65 to to IN 40404 1030 66 the the DT 40404 1030 67 sea sea NN 40404 1030 68 . . . 40404 1031 1 The the DT 40404 1031 2 initial initial JJ 40404 1031 3 surface surface NN 40404 1031 4 of of IN 40404 1031 5 the the DT 40404 1031 6 land land NN 40404 1031 7 , , , 40404 1031 8 by by IN 40404 1031 9 whatever whatever WDT 40404 1031 10 agency agency NN 40404 1031 11 it -PRON- PRP 40404 1031 12 was be VBD 40404 1031 13 modeled model VBN 40404 1031 14 , , , 40404 1031 15 is be VBZ 40404 1031 16 now now RB 40404 1031 17 wholly wholly RB 40404 1031 18 destroyed destroy VBN 40404 1031 19 ; ; : 40404 1031 20 the the DT 40404 1031 21 region region NN 40404 1031 22 is be VBZ 40404 1031 23 all all DT 40404 1031 24 reduced reduce VBN 40404 1031 25 to to IN 40404 1031 26 valley valley NN 40404 1031 27 slopes slope NNS 40404 1031 28 . . . 40404 1032 1 [ [ -LRB- 40404 1032 2 Illustration illustration NN 40404 1032 3 : : : 40404 1032 4 Fig Fig NNP 40404 1032 5 . . . 40404 1033 1 50 50 CD 40404 1033 2 . . . 40404 1034 1 Drainage Drainage NNP 40404 1034 2 Maps Maps NNPS 40404 1034 3 _ _ NNP 40404 1034 4 A A NNP 40404 1034 5 _ _ NNP 40404 1034 6 , , , 40404 1034 7 an an DT 40404 1034 8 area area NN 40404 1034 9 in in IN 40404 1034 10 its -PRON- PRP$ 40404 1034 11 infancy infancy NN 40404 1034 12 , , , 40404 1034 13 Buena Buena NNP 40404 1034 14 Vista Vista NNP 40404 1034 15 County County NNP 40404 1034 16 , , , 40404 1034 17 Iowa Iowa NNP 40404 1034 18 ; ; : 40404 1034 19 _ _ NNP 40404 1034 20 B B NNP 40404 1034 21 _ _ NNP 40404 1034 22 , , , 40404 1034 23 an an DT 40404 1034 24 area area NN 40404 1034 25 in in IN 40404 1034 26 its -PRON- PRP$ 40404 1034 27 maturity maturity NN 40404 1034 28 , , , 40404 1034 29 Ringgold Ringgold NNP 40404 1034 30 County County NNP 40404 1034 31 , , , 40404 1034 32 Iowa Iowa NNP 40404 1034 33 ] ] -RRB- 40404 1034 34 [ [ -LRB- 40404 1034 35 Illustration illustration NN 40404 1034 36 : : : 40404 1034 37 Fig Fig NNP 40404 1034 38 . . . 40404 1035 1 51 51 CD 40404 1035 2 . . . 40404 1036 1 Successive Successive NNP 40404 1036 2 Longitudinal Longitudinal NNP 40404 1036 3 Profiles Profiles NNPS 40404 1036 4 of of IN 40404 1036 5 a a DT 40404 1036 6 Stream Stream NNP 40404 1036 7 _ _ NNP 40404 1036 8 am be VBP 40404 1036 9 _ _ NNP 40404 1036 10 , , , 40404 1036 11 initial initial JJ 40404 1036 12 profile profile NN 40404 1036 13 , , , 40404 1036 14 with with IN 40404 1036 15 waterfall waterfall NN 40404 1036 16 at at IN 40404 1036 17 _ _ NNP 40404 1036 18 w w NNP 40404 1036 19 _ _ NNP 40404 1036 20 , , , 40404 1036 21 and and CC 40404 1036 22 basins basin NNS 40404 1036 23 at at IN 40404 1036 24 _ _ NNP 40404 1036 25 l l NNP 40404 1036 26 _ _ NNP 40404 1036 27 and and CC 40404 1036 28 _ _ NNP 40404 1036 29 l l NNP 40404 1036 30 ´ ´ NNP 40404 1036 31 _ _ NNP 40404 1036 32 , , , 40404 1036 33 which which WDT 40404 1036 34 at at IN 40404 1036 35 first first RB 40404 1036 36 are be VBP 40404 1036 37 occupied occupy VBN 40404 1036 38 by by IN 40404 1036 39 lakes lake NNS 40404 1036 40 and and CC 40404 1036 41 later later RB 40404 1036 42 are be VBP 40404 1036 43 filled fill VBN 40404 1036 44 or or CC 40404 1036 45 drained drain VBN 40404 1036 46 ; ; : 40404 1036 47 _ _ NNP 40404 1036 48 b b NNP 40404 1036 49 _ _ NNP 40404 1036 50 , , , 40404 1036 51 _ _ NNP 40404 1036 52 c c NNP 40404 1036 53 _ _ NNP 40404 1036 54 , , , 40404 1036 55 _ _ NNP 40404 1036 56 d d NNP 40404 1036 57 _ _ NNP 40404 1036 58 , , , 40404 1036 59 and and CC 40404 1036 60 _ _ NNP 40404 1036 61 e e NNP 40404 1036 62 _ _ NNP 40404 1036 63 , , , 40404 1036 64 profiles profile NNS 40404 1036 65 established establish VBN 40404 1036 66 in in IN 40404 1036 67 succession succession NN 40404 1036 68 as as IN 40404 1036 69 the the DT 40404 1036 70 stream stream NN 40404 1036 71 advances advance VBZ 40404 1036 72 from from IN 40404 1036 73 infancy infancy NN 40404 1036 74 toward toward IN 40404 1036 75 old old JJ 40404 1036 76 age age NN 40404 1036 77 . . . 40404 1037 1 Note note VB 40404 1037 2 that that IN 40404 1037 3 these these DT 40404 1037 4 profiles profile NNS 40404 1037 5 are be VBP 40404 1037 6 concave concave NNP 40404 1037 7 toward toward IN 40404 1037 8 the the DT 40404 1037 9 sky sky NN 40404 1037 10 . . . 40404 1038 1 This this DT 40404 1038 2 is be VBZ 40404 1038 3 the the DT 40404 1038 4 _ _ NNP 40404 1038 5 erosion erosion NN 40404 1038 6 curve curve NN 40404 1038 7 _ _ NNP 40404 1038 8 . . . 40404 1039 1 What what WP 40404 1039 2 contrasting contrast VBG 40404 1039 3 form form NN 40404 1039 4 has have VBZ 40404 1039 5 the the DT 40404 1039 6 weather weather NN 40404 1039 7 weather weather NN 40404 1039 8 curve curve NN 40404 1039 9 ( ( -LRB- 40404 1039 10 p. p. NN 40404 1040 1 34 34 CD 40404 1040 2 ) ) -RRB- 40404 1040 3 ? ? . 40404 1040 4 ] ] -RRB- 40404 1041 1 = = NFP 40404 1041 2 The the DT 40404 1041 3 longitudinal longitudinal JJ 40404 1041 4 profile profile NN 40404 1041 5 of of IN 40404 1041 6 a a DT 40404 1041 7 stream.= stream.= NN 40404 1041 8 This this DT 40404 1041 9 at at IN 40404 1041 10 first first JJ 40404 1041 11 corresponds correspond NNS 40404 1041 12 with with IN 40404 1041 13 the the DT 40404 1041 14 initial initial JJ 40404 1041 15 surface surface NN 40404 1041 16 of of IN 40404 1041 17 the the DT 40404 1041 18 region region NN 40404 1041 19 on on IN 40404 1041 20 which which WDT 40404 1041 21 the the DT 40404 1041 22 stream stream NN 40404 1041 23 begins begin VBZ 40404 1041 24 to to TO 40404 1041 25 flow flow VB 40404 1041 26 , , , 40404 1041 27 although although IN 40404 1041 28 its -PRON- PRP$ 40404 1041 29 way way NN 40404 1041 30 may may MD 40404 1041 31 lead lead VB 40404 1041 32 through through IN 40404 1041 33 basins basin NNS 40404 1041 34 and and CC 40404 1041 35 down down IN 40404 1041 36 steep steep JJ 40404 1041 37 descents descent NNS 40404 1041 38 . . . 40404 1042 1 The the DT 40404 1042 2 successive successive JJ 40404 1042 3 profiles profile NNS 40404 1042 4 to to TO 40404 1042 5 which which WDT 40404 1042 6 it -PRON- PRP 40404 1042 7 reduces reduce VBZ 40404 1042 8 its -PRON- PRP$ 40404 1042 9 bed bed NN 40404 1042 10 are be VBP 40404 1042 11 illustrated illustrate VBN 40404 1042 12 in in IN 40404 1042 13 Figure Figure NNP 40404 1042 14 51 51 CD 40404 1042 15 . . . 40404 1043 1 As as IN 40404 1043 2 the the DT 40404 1043 3 gradient gradient NN 40404 1043 4 , , , 40404 1043 5 or or CC 40404 1043 6 rate rate NN 40404 1043 7 of of IN 40404 1043 8 descent descent NN 40404 1043 9 of of IN 40404 1043 10 its -PRON- PRP$ 40404 1043 11 bed bed NN 40404 1043 12 , , , 40404 1043 13 is be VBZ 40404 1043 14 lowered lower VBN 40404 1043 15 , , , 40404 1043 16 the the DT 40404 1043 17 velocity velocity NN 40404 1043 18 of of IN 40404 1043 19 the the DT 40404 1043 20 river river NN 40404 1043 21 is be VBZ 40404 1043 22 decreased decrease VBN 40404 1043 23 until until IN 40404 1043 24 its -PRON- PRP$ 40404 1043 25 lessening lessening NN 40404 1043 26 energy energy NN 40404 1043 27 is be VBZ 40404 1043 28 wholly wholly RB 40404 1043 29 consumed consume VBN 40404 1043 30 in in IN 40404 1043 31 carrying carry VBG 40404 1043 32 its -PRON- PRP$ 40404 1043 33 load load NN 40404 1043 34 and and CC 40404 1043 35 it -PRON- PRP 40404 1043 36 can can MD 40404 1043 37 no no RB 40404 1043 38 longer longer RB 40404 1043 39 erode erode VB 40404 1043 40 its -PRON- PRP$ 40404 1043 41 bed bed NN 40404 1043 42 . . . 40404 1044 1 The the DT 40404 1044 2 river river NN 40404 1044 3 is be VBZ 40404 1044 4 now now RB 40404 1044 5 _ _ NNP 40404 1044 6 at at IN 40404 1044 7 grade grade NN 40404 1044 8 _ _ NNP 40404 1044 9 , , , 40404 1044 10 and and CC 40404 1044 11 its -PRON- PRP$ 40404 1044 12 capacity capacity NN 40404 1044 13 is be VBZ 40404 1044 14 just just RB 40404 1044 15 equal equal JJ 40404 1044 16 to to IN 40404 1044 17 its -PRON- PRP$ 40404 1044 18 load load NN 40404 1044 19 . . . 40404 1045 1 If if IN 40404 1045 2 now now RB 40404 1045 3 its -PRON- PRP$ 40404 1045 4 load load NN 40404 1045 5 is be VBZ 40404 1045 6 increased increase VBN 40404 1045 7 the the DT 40404 1045 8 stream stream NN 40404 1045 9 deposits deposit NNS 40404 1045 10 , , , 40404 1045 11 and and CC 40404 1045 12 thus thus RB 40404 1045 13 builds build VBZ 40404 1045 14 up up RP 40404 1045 15 , , , 40404 1045 16 or or CC 40404 1045 17 _ _ NNP 40404 1045 18 aggrades aggrade NNS 40404 1045 19 _ _ NNP 40404 1045 20 , , , 40404 1045 21 its -PRON- PRP$ 40404 1045 22 bed bed NN 40404 1045 23 . . . 40404 1046 1 On on IN 40404 1046 2 the the DT 40404 1046 3 other other JJ 40404 1046 4 hand hand NN 40404 1046 5 , , , 40404 1046 6 if if IN 40404 1046 7 its -PRON- PRP$ 40404 1046 8 load load NN 40404 1046 9 is be VBZ 40404 1046 10 diminished diminish VBN 40404 1046 11 it -PRON- PRP 40404 1046 12 has have VBZ 40404 1046 13 energy energy NN 40404 1046 14 to to TO 40404 1046 15 spare spare VB 40404 1046 16 , , , 40404 1046 17 and and CC 40404 1046 18 resuming resume VBG 40404 1046 19 its -PRON- PRP$ 40404 1046 20 work work NN 40404 1046 21 of of IN 40404 1046 22 erosion erosion NN 40404 1046 23 , , , 40404 1046 24 _ _ NNP 40404 1046 25 degrades degrade NNS 40404 1046 26 _ _ NNP 40404 1046 27 its -PRON- PRP$ 40404 1046 28 bed bed NN 40404 1046 29 . . . 40404 1047 1 In in IN 40404 1047 2 either either DT 40404 1047 3 case case NN 40404 1047 4 the the DT 40404 1047 5 stream stream NN 40404 1047 6 continues continue VBZ 40404 1047 7 aggrading aggrade VBG 40404 1047 8 or or CC 40404 1047 9 degrading degrade VBG 40404 1047 10 until until IN 40404 1047 11 a a DT 40404 1047 12 new new JJ 40404 1047 13 gradient gradient NN 40404 1047 14 is be VBZ 40404 1047 15 found find VBN 40404 1047 16 where where WRB 40404 1047 17 the the DT 40404 1047 18 velocity velocity NN 40404 1047 19 is be VBZ 40404 1047 20 just just RB 40404 1047 21 sufficient sufficient JJ 40404 1047 22 to to TO 40404 1047 23 move move VB 40404 1047 24 the the DT 40404 1047 25 load load NN 40404 1047 26 , , , 40404 1047 27 and and CC 40404 1047 28 here here RB 40404 1047 29 again again RB 40404 1047 30 it -PRON- PRP 40404 1047 31 reaches reach VBZ 40404 1047 32 grade grade NN 40404 1047 33 . . . 40404 1048 1 [ [ -LRB- 40404 1048 2 Illustration illustration NN 40404 1048 3 : : : 40404 1048 4 Fig Fig NNP 40404 1048 5 . . . 40404 1049 1 52 52 CD 40404 1049 2 . . . 40404 1050 1 A a DT 40404 1050 2 V V NNP 40404 1050 3 - - HYPH 40404 1050 4 Valley,--the Valley,--the NNP 40404 1050 5 Canyon Canyon NNP 40404 1050 6 of of IN 40404 1050 7 the the DT 40404 1050 8 Yellowstone Yellowstone NNP 40404 1050 9 Note Note NNP 40404 1050 10 the the DT 40404 1050 11 steep steep JJ 40404 1050 12 sides side NNS 40404 1050 13 . . . 40404 1051 1 What what WDT 40404 1051 2 processes process NNS 40404 1051 3 are be VBP 40404 1051 4 at at IN 40404 1051 5 work work NN 40404 1051 6 upon upon IN 40404 1051 7 them -PRON- PRP 40404 1051 8 ? ? . 40404 1052 1 How how WRB 40404 1052 2 wide wide JJ 40404 1052 3 is be VBZ 40404 1052 4 the the DT 40404 1052 5 valley valley NN 40404 1052 6 at at IN 40404 1052 7 the the DT 40404 1052 8 base base NN 40404 1052 9 compared compare VBN 40404 1052 10 with with IN 40404 1052 11 the the DT 40404 1052 12 width width NN 40404 1052 13 of of IN 40404 1052 14 the the DT 40404 1052 15 stream stream NN 40404 1052 16 ? ? . 40404 1053 1 Do do VBP 40404 1053 2 you -PRON- PRP 40404 1053 3 see see VB 40404 1053 4 any any DT 40404 1053 5 river river NN 40404 1053 6 deposits deposit NNS 40404 1053 7 along along IN 40404 1053 8 the the DT 40404 1053 9 banks bank NNS 40404 1053 10 ? ? . 40404 1054 1 Is be VBZ 40404 1054 2 the the DT 40404 1054 3 stream stream NN 40404 1054 4 flowing flow VBG 40404 1054 5 swiftly swiftly RB 40404 1054 6 over over IN 40404 1054 7 a a DT 40404 1054 8 rock rock NN 40404 1054 9 bed bed NN 40404 1054 10 , , , 40404 1054 11 or or CC 40404 1054 12 quietly quietly RB 40404 1054 13 over over IN 40404 1054 14 a a DT 40404 1054 15 bed bed NN 40404 1054 16 which which WDT 40404 1054 17 it -PRON- PRP 40404 1054 18 has have VBZ 40404 1054 19 built build VBN 40404 1054 20 up up RP 40404 1054 21 ? ? . 40404 1055 1 Is be VBZ 40404 1055 2 it -PRON- PRP 40404 1055 3 graded grade VBN 40404 1055 4 or or CC 40404 1055 5 ungraded ungrade VBN 40404 1055 6 ? ? . 40404 1056 1 Note note VB 40404 1056 2 that that IN 40404 1056 3 the the DT 40404 1056 4 canyon canyon NN 40404 1056 5 walls wall NNS 40404 1056 6 project project NN 40404 1056 7 in in IN 40404 1056 8 interlocking interlock VBG 40404 1056 9 spurs spur NNS 40404 1056 10 ] ] -RRB- 40404 1056 11 = = SYM 40404 1056 12 V v NN 40404 1056 13 - - HYPH 40404 1056 14 Valleys.= Valleys.= NNP 40404 1056 15 Vigorous vigorous JJ 40404 1056 16 rivers river NNS 40404 1056 17 well well RB 40404 1056 18 armed arm VBN 40404 1056 19 with with IN 40404 1056 20 waste waste NN 40404 1056 21 make make VBP 40404 1056 22 short short JJ 40404 1056 23 work work NN 40404 1056 24 of of IN 40404 1056 25 cutting cut VBG 40404 1056 26 their -PRON- PRP$ 40404 1056 27 beds bed NNS 40404 1056 28 to to IN 40404 1056 29 grade grade VB 40404 1056 30 , , , 40404 1056 31 and and CC 40404 1056 32 thus thus RB 40404 1056 33 erode erode VBP 40404 1056 34 narrow narrow JJ 40404 1056 35 , , , 40404 1056 36 steep steep JJ 40404 1056 37 - - HYPH 40404 1056 38 sided sided JJ 40404 1056 39 gorges gorge NNS 40404 1056 40 only only RB 40404 1056 41 wide wide JJ 40404 1056 42 enough enough RB 40404 1056 43 at at IN 40404 1056 44 the the DT 40404 1056 45 base base NN 40404 1056 46 to to TO 40404 1056 47 accommodate accommodate VB 40404 1056 48 the the DT 40404 1056 49 stream stream NN 40404 1056 50 . . . 40404 1057 1 The the DT 40404 1057 2 steepness steepness NN 40404 1057 3 of of IN 40404 1057 4 the the DT 40404 1057 5 valley valley NNP 40404 1057 6 slopes slope NNS 40404 1057 7 depends depend VBZ 40404 1057 8 on on IN 40404 1057 9 the the DT 40404 1057 10 relative relative JJ 40404 1057 11 rates rate NNS 40404 1057 12 at at IN 40404 1057 13 which which WDT 40404 1057 14 the the DT 40404 1057 15 bed bed NN 40404 1057 16 is be VBZ 40404 1057 17 cut cut VBN 40404 1057 18 down down RP 40404 1057 19 by by IN 40404 1057 20 the the DT 40404 1057 21 stream stream NN 40404 1057 22 and and CC 40404 1057 23 the the DT 40404 1057 24 sides side NNS 40404 1057 25 are be VBP 40404 1057 26 worn wear VBN 40404 1057 27 back back RP 40404 1057 28 by by IN 40404 1057 29 the the DT 40404 1057 30 weather weather NN 40404 1057 31 . . . 40404 1058 1 In in IN 40404 1058 2 resistant resistant JJ 40404 1058 3 rock rock NN 40404 1058 4 a a DT 40404 1058 5 swift swift JJ 40404 1058 6 , , , 40404 1058 7 well well RB 40404 1058 8 - - HYPH 40404 1058 9 laden laden JJ 40404 1058 10 stream stream NN 40404 1058 11 may may MD 40404 1058 12 saw see VBD 40404 1058 13 out out RP 40404 1058 14 a a DT 40404 1058 15 gorge gorge NN 40404 1058 16 whose whose WP$ 40404 1058 17 sides side NNS 40404 1058 18 are be VBP 40404 1058 19 nearly nearly RB 40404 1058 20 or or CC 40404 1058 21 even even RB 40404 1058 22 quite quite RB 40404 1058 23 vertical vertical JJ 40404 1058 24 , , , 40404 1058 25 but but CC 40404 1058 26 as as IN 40404 1058 27 a a DT 40404 1058 28 rule rule NN 40404 1058 29 young young JJ 40404 1058 30 valleys valley NNS 40404 1058 31 whose whose WP$ 40404 1058 32 streams stream NNS 40404 1058 33 have have VBP 40404 1058 34 not not RB 40404 1058 35 yet yet RB 40404 1058 36 reached reach VBN 40404 1058 37 grade grade NN 40404 1058 38 are be VBP 40404 1058 39 V v NN 40404 1058 40 - - HYPH 40404 1058 41 shaped shaped JJ 40404 1058 42 ; ; : 40404 1058 43 their -PRON- PRP$ 40404 1058 44 sides side NNS 40404 1058 45 flare flare VBP 40404 1058 46 at at IN 40404 1058 47 the the DT 40404 1058 48 top top NN 40404 1058 49 because because IN 40404 1058 50 here here RB 40404 1058 51 the the DT 40404 1058 52 rocks rock NNS 40404 1058 53 have have VBP 40404 1058 54 longest long JJS 40404 1058 55 been be VBN 40404 1058 56 opened open VBN 40404 1058 57 up up RP 40404 1058 58 to to IN 40404 1058 59 the the DT 40404 1058 60 action action NN 40404 1058 61 of of IN 40404 1058 62 the the DT 40404 1058 63 weather weather NN 40404 1058 64 . . . 40404 1059 1 Some some DT 40404 1059 2 of of IN 40404 1059 3 the the DT 40404 1059 4 deepest deep JJS 40404 1059 5 canyons canyon NNS 40404 1059 6 may may MD 40404 1059 7 be be VB 40404 1059 8 found find VBN 40404 1059 9 where where WRB 40404 1059 10 a a DT 40404 1059 11 rising rise VBG 40404 1059 12 land land NN 40404 1059 13 mass mass NN 40404 1059 14 , , , 40404 1059 15 either either CC 40404 1059 16 mountain mountain NN 40404 1059 17 range range NN 40404 1059 18 or or CC 40404 1059 19 plateau plateau NN 40404 1059 20 , , , 40404 1059 21 has have VBZ 40404 1059 22 long long RB 40404 1059 23 maintained maintain VBN 40404 1059 24 by by IN 40404 1059 25 its -PRON- PRP$ 40404 1059 26 continued continue VBN 40404 1059 27 uplift uplift NN 40404 1059 28 the the DT 40404 1059 29 rivers river NNS 40404 1059 30 of of IN 40404 1059 31 the the DT 40404 1059 32 region region NN 40404 1059 33 above above IN 40404 1059 34 grade grade NN 40404 1059 35 . . . 40404 1060 1 [ [ -LRB- 40404 1060 2 Illustration illustration NN 40404 1060 3 : : : 40404 1060 4 Fig Fig NNP 40404 1060 5 . . . 40404 1061 1 53 53 CD 40404 1061 2 . . . 40404 1062 1 Section section NN 40404 1062 2 of of IN 40404 1062 3 the the DT 40404 1062 4 Yellowstone Yellowstone NNP 40404 1062 5 Canyon Canyon NNP 40404 1062 6 This this DT 40404 1062 7 canyon canyon NN 40404 1062 8 is be VBZ 40404 1062 9 100 100 CD 40404 1062 10 feet foot NNS 40404 1062 11 deep deep JJ 40404 1062 12 , , , 40404 1062 13 2500 2500 CD 40404 1062 14 feet foot NNS 40404 1062 15 wide wide JJ 40404 1062 16 at at IN 40404 1062 17 the the DT 40404 1062 18 top top NN 40404 1062 19 , , , 40404 1062 20 and and CC 40404 1062 21 about about RB 40404 1062 22 250 250 CD 40404 1062 23 feet foot NNS 40404 1062 24 wide wide JJ 40404 1062 25 at at IN 40404 1062 26 the the DT 40404 1062 27 bottom bottom NN 40404 1062 28 . . . 40404 1063 1 Neglecting neglect VBG 40404 1063 2 any any DT 40404 1063 3 cutting cutting NN 40404 1063 4 of of IN 40404 1063 5 the the DT 40404 1063 6 river river NN 40404 1063 7 against against IN 40404 1063 8 the the DT 40404 1063 9 banks bank NNS 40404 1063 10 , , , 40404 1063 11 estimate estimate VB 40404 1063 12 what what WDT 40404 1063 13 part part NN 40404 1063 14 of of IN 40404 1063 15 the the DT 40404 1063 16 excavation excavation NN 40404 1063 17 of of IN 40404 1063 18 the the DT 40404 1063 19 canyon canyon NN 40404 1063 20 is be VBZ 40404 1063 21 due due JJ 40404 1063 22 to to IN 40404 1063 23 the the DT 40404 1063 24 vertical vertical JJ 40404 1063 25 erosion erosion NN 40404 1063 26 of of IN 40404 1063 27 its -PRON- PRP$ 40404 1063 28 bed bed NN 40404 1063 29 by by IN 40404 1063 30 the the DT 40404 1063 31 river river NN 40404 1063 32 and and CC 40404 1063 33 what what WP 40404 1063 34 to to IN 40404 1063 35 weathering weather VBG 40404 1063 36 and and CC 40404 1063 37 rain rain VB 40404 1063 38 wash wash NN 40404 1063 39 on on IN 40404 1063 40 the the DT 40404 1063 41 canyon canyon NN 40404 1063 42 sides side NNS 40404 1063 43 ] ] -RRB- 40404 1063 44 In in IN 40404 1063 45 the the DT 40404 1063 46 northern northern JJ 40404 1063 47 hemisphere hemisphere NN 40404 1063 48 the the DT 40404 1063 49 north north NN 40404 1063 50 sides side NNS 40404 1063 51 of of IN 40404 1063 52 river river NN 40404 1063 53 valleys valley NNS 40404 1063 54 are be VBP 40404 1063 55 sometimes sometimes RB 40404 1063 56 of of IN 40404 1063 57 more more RBR 40404 1063 58 gentle gentle JJ 40404 1063 59 slope slope NN 40404 1063 60 than than IN 40404 1063 61 the the DT 40404 1063 62 south south JJ 40404 1063 63 sides side NNS 40404 1063 64 . . . 40404 1064 1 Can Can MD 40404 1064 2 you -PRON- PRP 40404 1064 3 suggest suggest VB 40404 1064 4 a a DT 40404 1064 5 reason reason NN 40404 1064 6 ? ? . 40404 1065 1 = = NFP 40404 1065 2 The the DT 40404 1065 3 Grand Grand NNP 40404 1065 4 Canyon Canyon NNP 40404 1065 5 of of IN 40404 1065 6 the the DT 40404 1065 7 Colorado Colorado NNP 40404 1065 8 River River NNP 40404 1065 9 in in IN 40404 1065 10 Arizona.= Arizona.= NNP 40404 1065 11 The the DT 40404 1065 12 Colorado Colorado NNP 40404 1065 13 River River NNP 40404 1065 14 trenches trench VBZ 40404 1065 15 the the DT 40404 1065 16 high high JJ 40404 1065 17 plateau plateau NN 40404 1065 18 of of IN 40404 1065 19 northern northern JJ 40404 1065 20 Arizona Arizona NNP 40404 1065 21 with with IN 40404 1065 22 a a DT 40404 1065 23 colossal colossal JJ 40404 1065 24 canyon canyon NN 40404 1065 25 two two CD 40404 1065 26 hundred hundred CD 40404 1065 27 and and CC 40404 1065 28 eighteen eighteen CD 40404 1065 29 miles mile NNS 40404 1065 30 long long RB 40404 1065 31 and and CC 40404 1065 32 more more JJR 40404 1065 33 than than IN 40404 1065 34 a a DT 40404 1065 35 mile mile NN 40404 1065 36 in in IN 40404 1065 37 greatest great JJS 40404 1065 38 depth depth NN 40404 1065 39 ( ( -LRB- 40404 1065 40 Fig fig NN 40404 1065 41 . . . 40404 1066 1 15 15 CD 40404 1066 2 ) ) -RRB- 40404 1066 3 . . . 40404 1067 1 The the DT 40404 1067 2 rocks rock NNS 40404 1067 3 in in IN 40404 1067 4 which which WDT 40404 1067 5 the the DT 40404 1067 6 canyon canyon NN 40404 1067 7 is be VBZ 40404 1067 8 cut cut VBN 40404 1067 9 are be VBP 40404 1067 10 for for IN 40404 1067 11 the the DT 40404 1067 12 most most JJS 40404 1067 13 part part JJ 40404 1067 14 flat flat RB 40404 1067 15 - - HYPH 40404 1067 16 lying lie VBG 40404 1067 17 , , , 40404 1067 18 massive massive JJ 40404 1067 19 beds bed NNS 40404 1067 20 of of IN 40404 1067 21 limestones limestone NNS 40404 1067 22 and and CC 40404 1067 23 sandstones sandstone NNS 40404 1067 24 , , , 40404 1067 25 with with IN 40404 1067 26 some some DT 40404 1067 27 shales shale NNS 40404 1067 28 , , , 40404 1067 29 beneath beneath IN 40404 1067 30 which which WDT 40404 1067 31 in in IN 40404 1067 32 places place NNS 40404 1067 33 harder hard RBR 40404 1067 34 crystalline crystalline NN 40404 1067 35 rocks rock NNS 40404 1067 36 are be VBP 40404 1067 37 disclosed disclose VBN 40404 1067 38 . . . 40404 1068 1 Where where WRB 40404 1068 2 the the DT 40404 1068 3 canyon canyon NN 40404 1068 4 is be VBZ 40404 1068 5 deepest deepest VBN 40404 1068 6 its -PRON- PRP$ 40404 1068 7 walls wall NNS 40404 1068 8 have have VBP 40404 1068 9 been be VBN 40404 1068 10 profoundly profoundly RB 40404 1068 11 dissected dissect VBN 40404 1068 12 . . . 40404 1069 1 Lateral lateral JJ 40404 1069 2 ravines ravine NNS 40404 1069 3 have have VBP 40404 1069 4 widened widen VBN 40404 1069 5 into into IN 40404 1069 6 immense immense JJ 40404 1069 7 amphitheaters amphitheater NNS 40404 1069 8 , , , 40404 1069 9 leaving leave VBG 40404 1069 10 between between IN 40404 1069 11 them -PRON- PRP 40404 1069 12 long long JJ 40404 1069 13 ridges ridge NNS 40404 1069 14 of of IN 40404 1069 15 mountain mountain NN 40404 1069 16 height height NN 40404 1069 17 , , , 40404 1069 18 buttressed buttress VBN 40404 1069 19 and and CC 40404 1069 20 rebuttressed rebuttresse VBN 40404 1069 21 with with IN 40404 1069 22 flanking flank VBG 40404 1069 23 spurs spur NNS 40404 1069 24 and and CC 40404 1069 25 carved carve VBN 40404 1069 26 into into IN 40404 1069 27 majestic majestic JJ 40404 1069 28 architectural architectural JJ 40404 1069 29 forms form NNS 40404 1069 30 . . . 40404 1070 1 From from IN 40404 1070 2 the the DT 40404 1070 3 extremity extremity NN 40404 1070 4 of of IN 40404 1070 5 one one CD 40404 1070 6 of of IN 40404 1070 7 these these DT 40404 1070 8 promontories promontory NNS 40404 1070 9 it -PRON- PRP 40404 1070 10 is be VBZ 40404 1070 11 two two CD 40404 1070 12 miles mile NNS 40404 1070 13 or or CC 40404 1070 14 more more JJR 40404 1070 15 across across IN 40404 1070 16 the the DT 40404 1070 17 gulf gulf NN 40404 1070 18 to to IN 40404 1070 19 the the DT 40404 1070 20 point point NN 40404 1070 21 of of IN 40404 1070 22 the the DT 40404 1070 23 one one CD 40404 1070 24 opposite opposite NN 40404 1070 25 , , , 40404 1070 26 and and CC 40404 1070 27 the the DT 40404 1070 28 heads head NNS 40404 1070 29 of of IN 40404 1070 30 the the DT 40404 1070 31 amphitheaters amphitheater NNS 40404 1070 32 are be VBP 40404 1070 33 thirteen thirteen CD 40404 1070 34 miles mile NNS 40404 1070 35 apart apart RB 40404 1070 36 . . . 40404 1071 1 [ [ -LRB- 40404 1071 2 Illustration illustration NN 40404 1071 3 : : : 40404 1071 4 Fig Fig NNP 40404 1071 5 . . . 40404 1072 1 54 54 CD 40404 1072 2 . . . 40404 1073 1 Grand Grand NNP 40404 1073 2 Canyon Canyon NNP 40404 1073 3 of of IN 40404 1073 4 the the DT 40404 1073 5 Colorado Colorado NNP 40404 1073 6 River River NNP 40404 1073 7 , , , 40404 1073 8 Arizona Arizona NNP 40404 1073 9 ] ] -RRB- 40404 1073 10 The the DT 40404 1073 11 lower low JJR 40404 1073 12 portion portion NN 40404 1073 13 of of IN 40404 1073 14 the the DT 40404 1073 15 canyon canyon NN 40404 1073 16 is be VBZ 40404 1073 17 much much RB 40404 1073 18 narrower narrow JJR 40404 1073 19 ( ( -LRB- 40404 1073 20 Fig fig NN 40404 1073 21 . . . 40404 1074 1 54 54 CD 40404 1074 2 ) ) -RRB- 40404 1074 3 and and CC 40404 1074 4 its -PRON- PRP$ 40404 1074 5 walls wall NNS 40404 1074 6 of of IN 40404 1074 7 dark dark JJ 40404 1074 8 crystalline crystalline NN 40404 1074 9 rock rock NN 40404 1074 10 sink sink NN 40404 1074 11 steeply steeply RB 40404 1074 12 to to IN 40404 1074 13 the the DT 40404 1074 14 edge edge NN 40404 1074 15 of of IN 40404 1074 16 the the DT 40404 1074 17 river river NN 40404 1074 18 , , , 40404 1074 19 a a DT 40404 1074 20 swift swift JJ 40404 1074 21 , , , 40404 1074 22 powerful powerful JJ 40404 1074 23 stream stream NN 40404 1074 24 a a DT 40404 1074 25 few few JJ 40404 1074 26 hundred hundred CD 40404 1074 27 feet foot NNS 40404 1074 28 wide wide JJ 40404 1074 29 , , , 40404 1074 30 turbid turbid JJ 40404 1074 31 with with IN 40404 1074 32 reddish reddish JJ 40404 1074 33 silt silt NN 40404 1074 34 , , , 40404 1074 35 by by IN 40404 1074 36 means mean NNS 40404 1074 37 of of IN 40404 1074 38 which which WDT 40404 1074 39 it -PRON- PRP 40404 1074 40 continually continually RB 40404 1074 41 rasps rasp VBZ 40404 1074 42 its -PRON- PRP$ 40404 1074 43 rocky rocky JJ 40404 1074 44 bed bed NN 40404 1074 45 as as IN 40404 1074 46 it -PRON- PRP 40404 1074 47 hurries hurry VBZ 40404 1074 48 on on IN 40404 1074 49 . . . 40404 1075 1 The the DT 40404 1075 2 Colorado Colorado NNP 40404 1075 3 is be VBZ 40404 1075 4 still still RB 40404 1075 5 deepening deepen VBG 40404 1075 6 its -PRON- PRP$ 40404 1075 7 gorge gorge NN 40404 1075 8 . . . 40404 1076 1 In in IN 40404 1076 2 the the DT 40404 1076 3 Grand Grand NNP 40404 1076 4 Canyon Canyon NNP 40404 1076 5 its -PRON- PRP$ 40404 1076 6 gradient gradient NN 40404 1076 7 is be VBZ 40404 1076 8 seven seven CD 40404 1076 9 and and CC 40404 1076 10 one one CD 40404 1076 11 half half NN 40404 1076 12 feet foot NNS 40404 1076 13 to to IN 40404 1076 14 the the DT 40404 1076 15 mile mile NN 40404 1076 16 , , , 40404 1076 17 but but CC 40404 1076 18 , , , 40404 1076 19 as as IN 40404 1076 20 in in IN 40404 1076 21 all all DT 40404 1076 22 ungraded ungraded JJ 40404 1076 23 rivers river NNS 40404 1076 24 , , , 40404 1076 25 the the DT 40404 1076 26 descent descent NN 40404 1076 27 is be VBZ 40404 1076 28 far far RB 40404 1076 29 from from IN 40404 1076 30 uniform uniform NN 40404 1076 31 . . . 40404 1077 1 Graded graded JJ 40404 1077 2 reaches reach NNS 40404 1077 3 in in IN 40404 1077 4 soft soft JJ 40404 1077 5 rock rock NN 40404 1077 6 alternate alternate JJ 40404 1077 7 with with IN 40404 1077 8 steeper steep JJR 40404 1077 9 declivities declivity NNS 40404 1077 10 in in IN 40404 1077 11 hard hard JJ 40404 1077 12 rock rock NN 40404 1077 13 , , , 40404 1077 14 forming form VBG 40404 1077 15 rapids rapid NNS 40404 1077 16 such such JJ 40404 1077 17 as as IN 40404 1077 18 , , , 40404 1077 19 for for IN 40404 1077 20 example example NN 40404 1077 21 , , , 40404 1077 22 a a DT 40404 1077 23 stretch stretch NN 40404 1077 24 of of IN 40404 1077 25 ten ten CD 40404 1077 26 miles mile NNS 40404 1077 27 where where WRB 40404 1077 28 the the DT 40404 1077 29 fall fall NN 40404 1077 30 averages average VBZ 40404 1077 31 twenty twenty CD 40404 1077 32 - - HYPH 40404 1077 33 one one CD 40404 1077 34 feet foot NNS 40404 1077 35 to to IN 40404 1077 36 the the DT 40404 1077 37 mile mile NN 40404 1077 38 . . . 40404 1078 1 Because because IN 40404 1078 2 of of IN 40404 1078 3 these these DT 40404 1078 4 dangerous dangerous JJ 40404 1078 5 rapids rapid NNS 40404 1078 6 the the DT 40404 1078 7 few few JJ 40404 1078 8 exploring explore VBG 40404 1078 9 parties party NNS 40404 1078 10 who who WP 40404 1078 11 have have VBP 40404 1078 12 traversed traverse VBN 40404 1078 13 the the DT 40404 1078 14 Colorado Colorado NNP 40404 1078 15 canyon canyon NN 40404 1078 16 have have VBP 40404 1078 17 done do VBN 40404 1078 18 so so RB 40404 1078 19 at at IN 40404 1078 20 the the DT 40404 1078 21 hazard hazard NN 40404 1078 22 of of IN 40404 1078 23 their -PRON- PRP$ 40404 1078 24 lives life NNS 40404 1078 25 . . . 40404 1079 1 The the DT 40404 1079 2 canyon canyon NN 40404 1079 3 has have VBZ 40404 1079 4 been be VBN 40404 1079 5 shaped shape VBN 40404 1079 6 by by IN 40404 1079 7 several several JJ 40404 1079 8 agencies agency NNS 40404 1079 9 . . . 40404 1080 1 Its -PRON- PRP$ 40404 1080 2 depth depth NN 40404 1080 3 is be VBZ 40404 1080 4 due due JJ 40404 1080 5 to to IN 40404 1080 6 the the DT 40404 1080 7 river river NN 40404 1080 8 which which WDT 40404 1080 9 has have VBZ 40404 1080 10 sawed saw VBN 40404 1080 11 its -PRON- PRP$ 40404 1080 12 way way NN 40404 1080 13 far far RB 40404 1080 14 toward toward IN 40404 1080 15 the the DT 40404 1080 16 base base NN 40404 1080 17 of of IN 40404 1080 18 a a DT 40404 1080 19 lofty lofty JJ 40404 1080 20 rising rise VBG 40404 1080 21 plateau plateau NN 40404 1080 22 . . . 40404 1081 1 Acting act VBG 40404 1081 2 alone alone RB 40404 1081 3 this this DT 40404 1081 4 would would MD 40404 1081 5 have have VB 40404 1081 6 produced produce VBN 40404 1081 7 a a DT 40404 1081 8 slitlike slitlike NN 40404 1081 9 gorge gorge NN 40404 1081 10 little little JJ 40404 1081 11 wider wide JJR 40404 1081 12 than than IN 40404 1081 13 the the DT 40404 1081 14 breadth breadth NN 40404 1081 15 of of IN 40404 1081 16 the the DT 40404 1081 17 stream stream NN 40404 1081 18 . . . 40404 1082 1 The the DT 40404 1082 2 impressive impressive JJ 40404 1082 3 width width NN 40404 1082 4 of of IN 40404 1082 5 the the DT 40404 1082 6 canyon canyon NN 40404 1082 7 and and CC 40404 1082 8 the the DT 40404 1082 9 magnificent magnificent JJ 40404 1082 10 architectural architectural JJ 40404 1082 11 masses masse NNS 40404 1082 12 which which WDT 40404 1082 13 fill fill VBP 40404 1082 14 it -PRON- PRP 40404 1082 15 are be VBP 40404 1082 16 owing owe VBG 40404 1082 17 to to IN 40404 1082 18 two two CD 40404 1082 19 causes cause NNS 40404 1082 20 . . . 40404 1083 1 Running run VBG 40404 1083 2 water water NN 40404 1083 3 has have VBZ 40404 1083 4 gulched gulche VBN 40404 1083 5 the the DT 40404 1083 6 walls wall NNS 40404 1083 7 and and CC 40404 1083 8 weathering weathering NN 40404 1083 9 has have VBZ 40404 1083 10 everywhere everywhere RB 40404 1083 11 attacked attack VBN 40404 1083 12 and and CC 40404 1083 13 driven drive VBN 40404 1083 14 them -PRON- PRP 40404 1083 15 back back RB 40404 1083 16 . . . 40404 1084 1 The the DT 40404 1084 2 horizontal horizontal JJ 40404 1084 3 harder hard JJR 40404 1084 4 beds bed NNS 40404 1084 5 stand stand VBP 40404 1084 6 out out RP 40404 1084 7 in in IN 40404 1084 8 long long JJ 40404 1084 9 lines line NNS 40404 1084 10 of of IN 40404 1084 11 vertical vertical JJ 40404 1084 12 cliffs cliff NNS 40404 1084 13 , , , 40404 1084 14 often often RB 40404 1084 15 hundreds hundred NNS 40404 1084 16 of of IN 40404 1084 17 feet foot NNS 40404 1084 18 in in IN 40404 1084 19 height height NN 40404 1084 20 , , , 40404 1084 21 at at IN 40404 1084 22 whose whose WP$ 40404 1084 23 feet foot NNS 40404 1084 24 talus talus NNP 40404 1084 25 slopes slope NNS 40404 1084 26 conceal conceal VBP 40404 1084 27 the the DT 40404 1084 28 outcrop outcrop NN 40404 1084 29 of of IN 40404 1084 30 the the DT 40404 1084 31 weaker weak JJR 40404 1084 32 strata strata NN 40404 1084 33 ( ( -LRB- 40404 1084 34 Fig fig NN 40404 1084 35 . . . 40404 1085 1 15 15 CD 40404 1085 2 ) ) -RRB- 40404 1085 3 . . . 40404 1086 1 As as IN 40404 1086 2 the the DT 40404 1086 3 upper upper JJ 40404 1086 4 cliffs cliff NNS 40404 1086 5 have have VBP 40404 1086 6 been be VBN 40404 1086 7 sapped sap VBN 40404 1086 8 and and CC 40404 1086 9 driven drive VBN 40404 1086 10 back back RB 40404 1086 11 by by IN 40404 1086 12 the the DT 40404 1086 13 weather weather NN 40404 1086 14 , , , 40404 1086 15 broad broad JJ 40404 1086 16 platforms platform NNS 40404 1086 17 are be VBP 40404 1086 18 left leave VBN 40404 1086 19 at at IN 40404 1086 20 their -PRON- PRP$ 40404 1086 21 bases basis NNS 40404 1086 22 and and CC 40404 1086 23 the the DT 40404 1086 24 sides side NNS 40404 1086 25 of of IN 40404 1086 26 the the DT 40404 1086 27 canyon canyon NN 40404 1086 28 descend descend NN 40404 1086 29 to to IN 40404 1086 30 the the DT 40404 1086 31 river river NN 40404 1086 32 by by IN 40404 1086 33 gigantic gigantic JJ 40404 1086 34 steps step NNS 40404 1086 35 . . . 40404 1087 1 Far far RB 40404 1087 2 up up IN 40404 1087 3 and and CC 40404 1087 4 down down IN 40404 1087 5 the the DT 40404 1087 6 canyon canyon NN 40404 1087 7 the the DT 40404 1087 8 eye eye NN 40404 1087 9 traces trace VBZ 40404 1087 10 these these DT 40404 1087 11 horizontal horizontal JJ 40404 1087 12 layers layer NNS 40404 1087 13 , , , 40404 1087 14 like like IN 40404 1087 15 the the DT 40404 1087 16 flutings fluting NNS 40404 1087 17 of of IN 40404 1087 18 an an DT 40404 1087 19 elaborate elaborate JJ 40404 1087 20 molding molding NN 40404 1087 21 , , , 40404 1087 22 distinguishing distinguish VBG 40404 1087 23 each each DT 40404 1087 24 by by IN 40404 1087 25 its -PRON- PRP$ 40404 1087 26 contour contour NN 40404 1087 27 as as RB 40404 1087 28 well well RB 40404 1087 29 as as IN 40404 1087 30 by by IN 40404 1087 31 its -PRON- PRP$ 40404 1087 32 color color NN 40404 1087 33 and and CC 40404 1087 34 thickness thickness NN 40404 1087 35 . . . 40404 1088 1 [ [ -LRB- 40404 1088 2 Illustration illustration NN 40404 1088 3 : : : 40404 1088 4 Fig Fig NNP 40404 1088 5 . . . 40404 1089 1 55 55 CD 40404 1089 2 . . . 40404 1090 1 Diagrams diagram NNS 40404 1090 2 illustrating illustrate VBG 40404 1090 3 Conditions condition NNS 40404 1090 4 which which WDT 40404 1090 5 produce produce VBP 40404 1090 6 Falls Falls NNP 40404 1090 7 or or CC 40404 1090 8 Rapids Rapids NNPS 40404 1090 9 _ _ NNP 40404 1090 10 A A NNP 40404 1090 11 _ _ NNP 40404 1090 12 , , , 40404 1090 13 vertical vertical JJ 40404 1090 14 succession succession NN 40404 1090 15 of of IN 40404 1090 16 harder hard JJR 40404 1090 17 and and CC 40404 1090 18 softer soft JJR 40404 1090 19 rocks rock NNS 40404 1090 20 ; ; : 40404 1090 21 _ _ NNP 40404 1090 22 B B NNP 40404 1090 23 _ _ NNP 40404 1090 24 , , , 40404 1090 25 horizontal horizontal JJ 40404 1090 26 succession succession NN 40404 1090 27 of of IN 40404 1090 28 the the DT 40404 1090 29 same same JJ 40404 1090 30 . . . 40404 1091 1 In in IN 40404 1091 2 _ _ NNP 40404 1091 3 A A NNP 40404 1091 4 _ _ NNP 40404 1091 5 the the DT 40404 1091 6 stream stream NN 40404 1091 7 _ _ NNP 40404 1091 8 ab ab NNP 40404 1091 9 _ _ NNP 40404 1091 10 in in IN 40404 1091 11 sinking sink VBG 40404 1091 12 its -PRON- PRP$ 40404 1091 13 bed bed NN 40404 1091 14 through through IN 40404 1091 15 a a DT 40404 1091 16 mass mass NN 40404 1091 17 of of IN 40404 1091 18 strata strata NN 40404 1091 19 of of IN 40404 1091 20 different different JJ 40404 1091 21 degrees degree NNS 40404 1091 22 of of IN 40404 1091 23 hardness hardness NN 40404 1091 24 has have VBZ 40404 1091 25 discovered discover VBN 40404 1091 26 the the DT 40404 1091 27 weak weak JJ 40404 1091 28 layer layer NN 40404 1091 29 _ _ NNP 40404 1091 30 s s NNP 40404 1091 31 _ _ NNP 40404 1091 32 beneath beneath IN 40404 1091 33 the the DT 40404 1091 34 hard hard JJ 40404 1091 35 layer layer NN 40404 1091 36 _ _ NNP 40404 1091 37 h h NNP 40404 1091 38 _ _ NNP 40404 1091 39 . . . 40404 1092 1 It -PRON- PRP 40404 1092 2 rapidly rapidly RB 40404 1092 3 cuts cut VBZ 40404 1092 4 its -PRON- PRP$ 40404 1092 5 way way NN 40404 1092 6 in in IN 40404 1092 7 _ _ NNP 40404 1092 8 s s NNP 40404 1092 9 _ _ NNP 40404 1092 10 , , , 40404 1092 11 while while IN 40404 1092 12 in in IN 40404 1092 13 _ _ NNP 40404 1092 14 A A NNP 40404 1092 15 _ _ NNP 40404 1092 16 its -PRON- PRP$ 40404 1092 17 work work NN 40404 1092 18 is be VBZ 40404 1092 19 delayed delay VBN 40404 1092 20 . . . 40404 1093 1 Thus thus RB 40404 1093 2 the the DT 40404 1093 3 profile profile NN 40404 1093 4 _ _ NNP 40404 1093 5 afb afb NNP 40404 1093 6 ´ ´ CD 40404 1093 7 _ _ NNP 40404 1093 8 is be VBZ 40404 1093 9 soon soon RB 40404 1093 10 reached reach VBN 40404 1093 11 , , , 40404 1093 12 with with IN 40404 1093 13 falls fall NNS 40404 1093 14 at at IN 40404 1093 15 _ _ NNP 40404 1093 16 f f NNP 40404 1093 17 _ _ NNP 40404 1093 18 . . . 40404 1094 1 In in IN 40404 1094 2 _ _ NNP 40404 1094 3 B B NNP 40404 1094 4 _ _ NNP 40404 1094 5 the the DT 40404 1094 6 initial initial JJ 40404 1094 7 profile profile NN 40404 1094 8 is be VBZ 40404 1094 9 shown show VBN 40404 1094 10 by by IN 40404 1094 11 dotted dotted JJ 40404 1094 12 line line NN 40404 1094 13 . . . 40404 1094 14 ] ] -RRB- 40404 1095 1 The the DT 40404 1095 2 Grand Grand NNP 40404 1095 3 Canyon Canyon NNP 40404 1095 4 of of IN 40404 1095 5 the the DT 40404 1095 6 Colorado Colorado NNP 40404 1095 7 is be VBZ 40404 1095 8 often often RB 40404 1095 9 and and CC 40404 1095 10 rightly rightly RB 40404 1095 11 cited cite VBN 40404 1095 12 as as IN 40404 1095 13 an an DT 40404 1095 14 example example NN 40404 1095 15 of of IN 40404 1095 16 the the DT 40404 1095 17 stupendous stupendous JJ 40404 1095 18 erosion erosion NN 40404 1095 19 which which WDT 40404 1095 20 may may MD 40404 1095 21 be be VB 40404 1095 22 accomplished accomplish VBN 40404 1095 23 by by IN 40404 1095 24 a a DT 40404 1095 25 river river NN 40404 1095 26 . . . 40404 1096 1 And and CC 40404 1096 2 yet yet RB 40404 1096 3 the the DT 40404 1096 4 Colorado Colorado NNP 40404 1096 5 is be VBZ 40404 1096 6 a a DT 40404 1096 7 young young JJ 40404 1096 8 stream stream NN 40404 1096 9 and and CC 40404 1096 10 its -PRON- PRP$ 40404 1096 11 work work NN 40404 1096 12 is be VBZ 40404 1096 13 no no DT 40404 1096 14 more more JJR 40404 1096 15 than than IN 40404 1096 16 well well RB 40404 1096 17 begun begin VBN 40404 1096 18 . . . 40404 1097 1 It -PRON- PRP 40404 1097 2 has have VBZ 40404 1097 3 not not RB 40404 1097 4 yet yet RB 40404 1097 5 wholly wholly RB 40404 1097 6 reached reach VBN 40404 1097 7 grade grade NN 40404 1097 8 , , , 40404 1097 9 and and CC 40404 1097 10 the the DT 40404 1097 11 great great JJ 40404 1097 12 task task NN 40404 1097 13 of of IN 40404 1097 14 the the DT 40404 1097 15 river river NN 40404 1097 16 and and CC 40404 1097 17 its -PRON- PRP$ 40404 1097 18 tributaries tributary NNS 40404 1097 19 -- -- : 40404 1097 20 the the DT 40404 1097 21 task task NN 40404 1097 22 of of IN 40404 1097 23 leveling level VBG 40404 1097 24 the the DT 40404 1097 25 lofty lofty JJ 40404 1097 26 plateau plateau NN 40404 1097 27 to to IN 40404 1097 28 a a DT 40404 1097 29 low low JJ 40404 1097 30 plain plain NN 40404 1097 31 and and CC 40404 1097 32 of of IN 40404 1097 33 transporting transport VBG 40404 1097 34 it -PRON- PRP 40404 1097 35 grain grain NN 40404 1097 36 by by IN 40404 1097 37 grain grain NN 40404 1097 38 to to IN 40404 1097 39 the the DT 40404 1097 40 sea sea NN 40404 1097 41 -- -- : 40404 1097 42 still still RB 40404 1097 43 lies lie VBZ 40404 1097 44 almost almost RB 40404 1097 45 entirely entirely RB 40404 1097 46 in in IN 40404 1097 47 the the DT 40404 1097 48 future future NN 40404 1097 49 . . . 40404 1098 1 [ [ -LRB- 40404 1098 2 Illustration illustration NN 40404 1098 3 : : : 40404 1098 4 Fig Fig NNP 40404 1098 5 . . . 40404 1099 1 56 56 CD 40404 1099 2 . . . 40404 1100 1 Longitudinal Longitudinal NNP 40404 1100 2 Section Section NNP 40404 1100 3 of of IN 40404 1100 4 Yellowstone Yellowstone NNP 40404 1100 5 River River NNP 40404 1100 6 at at IN 40404 1100 7 Lower Lower NNP 40404 1100 8 Fall Fall NNP 40404 1100 9 , , , 40404 1100 10 _ _ NNP 40404 1100 11 F F NNP 40404 1100 12 _ _ NNP 40404 1100 13 , , , 40404 1100 14 and and CC 40404 1100 15 Upper Upper NNP 40404 1100 16 Fall Fall NNP 40404 1100 17 , , , 40404 1100 18 _ _ NNP 40404 1100 19 F F NNP 40404 1100 20 ´ ´ NNP 40404 1100 21 _ _ NNP 40404 1100 22 , , , 40404 1100 23 Yellowstone Yellowstone NNP 40404 1100 24 National National NNP 40404 1100 25 Park Park NNP 40404 1100 26 _ _ NNP 40404 1100 27 la la NNP 40404 1100 28 _ _ NNP 40404 1100 29 , , , 40404 1100 30 lava lava NNP 40404 1100 31 deeply deeply RB 40404 1100 32 decayed decay VBD 40404 1100 33 through through IN 40404 1100 34 action action NN 40404 1100 35 of of IN 40404 1100 36 thermal thermal JJ 40404 1100 37 waters water NNS 40404 1100 38 ; ; : 40404 1100 39 _ _ NNP 40404 1100 40 m m NNP 40404 1100 41 _ _ NNP 40404 1100 42 and and CC 40404 1100 43 _ _ NNP 40404 1100 44 m m NNP 40404 1100 45 ´ ´ CD 40404 1100 46 _ _ NNP 40404 1100 47 , , , 40404 1100 48 masses masse NNS 40404 1100 49 of of IN 40404 1100 50 decayed decay VBN 40404 1100 51 lavas lavas NNP 40404 1100 52 to to IN 40404 1100 53 whose whose WP$ 40404 1100 54 hardness hardness NN 40404 1100 55 the the DT 40404 1100 56 falls fall NNS 40404 1100 57 are be VBP 40404 1100 58 due due JJ 40404 1100 59 . . . 40404 1101 1 Which which WDT 40404 1101 2 fall fall NN 40404 1101 3 will will MD 40404 1101 4 be be VB 40404 1101 5 worn wear VBN 40404 1101 6 away away RP 40404 1101 7 the the DT 40404 1101 8 sooner soon RBR 40404 1101 9 ? ? . 40404 1102 1 How how WRB 40404 1102 2 far far RB 40404 1102 3 upstream upstream RB 40404 1102 4 will will MD 40404 1102 5 each each DT 40404 1102 6 fall fall VB 40404 1102 7 migrate migrate VB 40404 1102 8 ? ? . 40404 1103 1 Draw draw VB 40404 1103 2 profile profile NN 40404 1103 3 of of IN 40404 1103 4 the the DT 40404 1103 5 river river NN 40404 1103 6 when when WRB 40404 1103 7 one one CD 40404 1103 8 fall fall NN 40404 1103 9 has have VBZ 40404 1103 10 disappeared disappear VBN 40404 1103 11 ] ] -RRB- 40404 1103 12 [ [ -LRB- 40404 1103 13 Illustration illustration NN 40404 1103 14 : : : 40404 1103 15 Fig Fig NNP 40404 1103 16 . . . 40404 1104 1 57 57 CD 40404 1104 2 . . . 40404 1105 1 Diagram Diagram NNP 40404 1105 2 illustrating illustrate VBG 40404 1105 3 Migration migration NN 40404 1105 4 of of IN 40404 1105 5 a a DT 40404 1105 6 Fall fall NN 40404 1105 7 due due IN 40404 1105 8 to to IN 40404 1105 9 a a DT 40404 1105 10 Hard Hard NNP 40404 1105 11 Layer Layer NNP 40404 1105 12 _ _ NNP 40404 1105 13 H H NNP 40404 1105 14 _ _ NNP 40404 1105 15 , , , 40404 1105 16 in in IN 40404 1105 17 the the DT 40404 1105 18 Midst Midst NNP 40404 1105 19 of of IN 40404 1105 20 Soft Soft NNP 40404 1105 21 Layers Layers NNPS 40404 1105 22 _ _ NNP 40404 1105 23 S S NNP 40404 1105 24 _ _ NNP 40404 1105 25 and and CC 40404 1105 26 _ _ NNP 40404 1105 27 S S NNP 40404 1105 28 _ _ NNP 40404 1105 29 , , , 40404 1105 30 all all DT 40404 1105 31 dipping dipping NN 40404 1105 32 upstream upstream NN 40404 1105 33 _ _ NNP 40404 1105 34 a a DT 40404 1105 35 _ _ NNP 40404 1105 36 , , , 40404 1105 37 _ _ NNP 40404 1105 38 b b NNP 40404 1105 39 _ _ NNP 40404 1105 40 , , , 40404 1105 41 _ _ NNP 40404 1105 42 c c NNP 40404 1105 43 _ _ NNP 40404 1105 44 , , , 40404 1105 45 _ _ NNP 40404 1105 46 d d NNP 40404 1105 47 _ _ NNP 40404 1105 48 , , , 40404 1105 49 and and CC 40404 1105 50 _ _ NNP 40404 1105 51 e e NNP 40404 1105 52 _ _ NNP 40404 1105 53 , , , 40404 1105 54 successive successive JJ 40404 1105 55 positions position NNS 40404 1105 56 of of IN 40404 1105 57 the the DT 40404 1105 58 fall fall NN 40404 1105 59 ; ; : 40404 1105 60 _ _ NNP 40404 1105 61 r r NNP 40404 1105 62 _ _ NNP 40404 1105 63 , , , 40404 1105 64 rapid rapid JJ 40404 1105 65 to to IN 40404 1105 66 which which WDT 40404 1105 67 the the DT 40404 1105 68 fall fall NN 40404 1105 69 is be VBZ 40404 1105 70 reduced reduce VBN 40404 1105 71 . . . 40404 1106 1 Draw Draw NNP 40404 1106 2 diagram diagram NN 40404 1106 3 showing show VBG 40404 1106 4 migration migration NN 40404 1106 5 of of IN 40404 1106 6 fall fall NN 40404 1106 7 in in IN 40404 1106 8 strata strata NN 40404 1106 9 dipping dip VBG 40404 1106 10 _ _ NNP 40404 1106 11 downstream downstream JJ 40404 1106 12 _ _ NNP 40404 1106 13 . . . 40404 1107 1 Under under IN 40404 1107 2 what what WDT 40404 1107 3 conditions condition NNS 40404 1107 4 of of IN 40404 1107 5 inclination inclination NN 40404 1107 6 of of IN 40404 1107 7 the the DT 40404 1107 8 strata strata NN 40404 1107 9 will will MD 40404 1107 10 a a DT 40404 1107 11 fall fall NN 40404 1107 12 migrate migrate VB 40404 1107 13 the the DT 40404 1107 14 farthest farth JJS 40404 1107 15 and and CC 40404 1107 16 have have VBP 40404 1107 17 the the DT 40404 1107 18 longest long JJS 40404 1107 19 life life NN 40404 1107 20 ? ? . 40404 1108 1 Under under IN 40404 1108 2 what what WDT 40404 1108 3 conditions condition NNS 40404 1108 4 will will MD 40404 1108 5 it -PRON- PRP 40404 1108 6 migrate migrate VB 40404 1108 7 the the DT 40404 1108 8 least least JJS 40404 1108 9 distance distance NN 40404 1108 10 and and CC 40404 1108 11 soonest soon JJS 40404 1108 12 be be VB 40404 1108 13 destroyed destroy VBN 40404 1108 14 ? ? . 40404 1108 15 ] ] -RRB- 40404 1109 1 = = NFP 40404 1109 2 Waterfalls Waterfalls NNP 40404 1109 3 and and CC 40404 1109 4 rapids.= rapids.= CD 40404 1109 5 Before before IN 40404 1109 6 the the DT 40404 1109 7 bed bed NN 40404 1109 8 of of IN 40404 1109 9 a a DT 40404 1109 10 stream stream NN 40404 1109 11 is be VBZ 40404 1109 12 reduced reduce VBN 40404 1109 13 to to TO 40404 1109 14 grade grade VB 40404 1109 15 it -PRON- PRP 40404 1109 16 may may MD 40404 1109 17 be be VB 40404 1109 18 broken break VBN 40404 1109 19 by by IN 40404 1109 20 abrupt abrupt JJ 40404 1109 21 descents descent NNS 40404 1109 22 which which WDT 40404 1109 23 give give VBP 40404 1109 24 rise rise NN 40404 1109 25 to to IN 40404 1109 26 waterfalls waterfall NNS 40404 1109 27 and and CC 40404 1109 28 rapids rapid NNS 40404 1109 29 . . . 40404 1110 1 Such such JJ 40404 1110 2 breaks break NNS 40404 1110 3 in in IN 40404 1110 4 a a DT 40404 1110 5 river river NN 40404 1110 6 's 's POS 40404 1110 7 bed bed NN 40404 1110 8 may may MD 40404 1110 9 belong belong VB 40404 1110 10 to to IN 40404 1110 11 the the DT 40404 1110 12 initial initial JJ 40404 1110 13 surface surface NN 40404 1110 14 over over IN 40404 1110 15 which which WDT 40404 1110 16 it -PRON- PRP 40404 1110 17 began begin VBD 40404 1110 18 its -PRON- PRP$ 40404 1110 19 course course NN 40404 1110 20 ; ; : 40404 1110 21 still still RB 40404 1110 22 more more RBR 40404 1110 23 commonly commonly RB 40404 1110 24 are be VBP 40404 1110 25 they -PRON- PRP 40404 1110 26 developed develop VBN 40404 1110 27 in in IN 40404 1110 28 the the DT 40404 1110 29 rock rock NN 40404 1110 30 mass mass NN 40404 1110 31 through through IN 40404 1110 32 which which WDT 40404 1110 33 it -PRON- PRP 40404 1110 34 is be VBZ 40404 1110 35 cutting cut VBG 40404 1110 36 its -PRON- PRP$ 40404 1110 37 valley valley NN 40404 1110 38 . . . 40404 1111 1 Thus thus RB 40404 1111 2 , , , 40404 1111 3 wherever wherever WRB 40404 1111 4 a a DT 40404 1111 5 stream stream NN 40404 1111 6 leaves leave VBZ 40404 1111 7 harder hard JJR 40404 1111 8 rocks rock NNS 40404 1111 9 to to TO 40404 1111 10 flow flow VB 40404 1111 11 over over IN 40404 1111 12 softer soft JJR 40404 1111 13 ones one NNS 40404 1111 14 the the DT 40404 1111 15 latter latter JJ 40404 1111 16 are be VBP 40404 1111 17 quickly quickly RB 40404 1111 18 worn wear VBN 40404 1111 19 below below IN 40404 1111 20 the the DT 40404 1111 21 level level NN 40404 1111 22 of of IN 40404 1111 23 the the DT 40404 1111 24 former former JJ 40404 1111 25 , , , 40404 1111 26 and and CC 40404 1111 27 a a DT 40404 1111 28 sharp sharp JJ 40404 1111 29 change change NN 40404 1111 30 in in IN 40404 1111 31 slope slope NN 40404 1111 32 , , , 40404 1111 33 with with IN 40404 1111 34 a a DT 40404 1111 35 waterfall waterfall NN 40404 1111 36 or or CC 40404 1111 37 rapid rapid JJ 40404 1111 38 , , , 40404 1111 39 results result NNS 40404 1111 40 . . . 40404 1112 1 At at IN 40404 1112 2 time time NN 40404 1112 3 of of IN 40404 1112 4 flood flood NN 40404 1112 5 young young JJ 40404 1112 6 tributaries tributary NNS 40404 1112 7 with with IN 40404 1112 8 steeper steep JJR 40404 1112 9 courses course NNS 40404 1112 10 than than IN 40404 1112 11 that that DT 40404 1112 12 of of IN 40404 1112 13 the the DT 40404 1112 14 trunk trunk NN 40404 1112 15 stream stream NN 40404 1112 16 may may MD 40404 1112 17 bring bring VB 40404 1112 18 down down RP 40404 1112 19 stones stone NNS 40404 1112 20 and and CC 40404 1112 21 finer fine JJR 40404 1112 22 waste waste NN 40404 1112 23 , , , 40404 1112 24 which which WDT 40404 1112 25 the the DT 40404 1112 26 gentler gentle JJR 40404 1112 27 current current NN 40404 1112 28 can can MD 40404 1112 29 not not RB 40404 1112 30 move move VB 40404 1112 31 along along RB 40404 1112 32 , , , 40404 1112 33 and and CC 40404 1112 34 throw throw VB 40404 1112 35 them -PRON- PRP 40404 1112 36 as as IN 40404 1112 37 a a DT 40404 1112 38 dam dam NN 40404 1112 39 across across IN 40404 1112 40 its -PRON- PRP$ 40404 1112 41 way way NN 40404 1112 42 . . . 40404 1113 1 The the DT 40404 1113 2 rapids rapid NNS 40404 1113 3 thus thus RB 40404 1113 4 formed form VBN 40404 1113 5 are be VBP 40404 1113 6 also also RB 40404 1113 7 ephemeral ephemeral JJ 40404 1113 8 , , , 40404 1113 9 for for IN 40404 1113 10 as as IN 40404 1113 11 the the DT 40404 1113 12 gradient gradient NN 40404 1113 13 of of IN 40404 1113 14 the the DT 40404 1113 15 tributaries tributary NNS 40404 1113 16 is be VBZ 40404 1113 17 lowered lower VBN 40404 1113 18 the the DT 40404 1113 19 main main JJ 40404 1113 20 stream stream NN 40404 1113 21 becomes become VBZ 40404 1113 22 able able JJ 40404 1113 23 to to TO 40404 1113 24 handle handle VB 40404 1113 25 the the DT 40404 1113 26 smaller small JJR 40404 1113 27 and and CC 40404 1113 28 finer finer NN 40404 1113 29 load load NN 40404 1113 30 which which WDT 40404 1113 31 they -PRON- PRP 40404 1113 32 discharge discharge VBP 40404 1113 33 . . . 40404 1114 1 A a DT 40404 1114 2 rare rare JJ 40404 1114 3 class class NN 40404 1114 4 of of IN 40404 1114 5 falls falls NNP 40404 1114 6 is be VBZ 40404 1114 7 produced produce VBN 40404 1114 8 where where WRB 40404 1114 9 the the DT 40404 1114 10 minor minor JJ 40404 1114 11 tributaries tributary NNS 40404 1114 12 of of IN 40404 1114 13 a a DT 40404 1114 14 young young JJ 40404 1114 15 river river NN 40404 1114 16 are be VBP 40404 1114 17 not not RB 40404 1114 18 able able JJ 40404 1114 19 to to TO 40404 1114 20 keep keep VB 40404 1114 21 pace pace NN 40404 1114 22 with with IN 40404 1114 23 their -PRON- PRP$ 40404 1114 24 master master NN 40404 1114 25 stream stream NN 40404 1114 26 in in IN 40404 1114 27 the the DT 40404 1114 28 erosion erosion NN 40404 1114 29 of of IN 40404 1114 30 their -PRON- PRP$ 40404 1114 31 beds bed NNS 40404 1114 32 because because IN 40404 1114 33 of of IN 40404 1114 34 their -PRON- PRP$ 40404 1114 35 smaller small JJR 40404 1114 36 volume volume NN 40404 1114 37 , , , 40404 1114 38 and and CC 40404 1114 39 thus thus RB 40404 1114 40 join join VB 40404 1114 41 it -PRON- PRP 40404 1114 42 by by IN 40404 1114 43 plunging plunge VBG 40404 1114 44 over over IN 40404 1114 45 the the DT 40404 1114 46 side side NN 40404 1114 47 of of IN 40404 1114 48 its -PRON- PRP$ 40404 1114 49 gorge gorge NN 40404 1114 50 . . . 40404 1115 1 But but CC 40404 1115 2 as as IN 40404 1115 3 the the DT 40404 1115 4 river river NN 40404 1115 5 approaches approach VBZ 40404 1115 6 grade grade NN 40404 1115 7 and and CC 40404 1115 8 slackens slacken VBZ 40404 1115 9 its -PRON- PRP$ 40404 1115 10 down down RP 40404 1115 11 cutting cutting NN 40404 1115 12 , , , 40404 1115 13 the the DT 40404 1115 14 tributaries tributary NNS 40404 1115 15 sooner sooner RB 40404 1115 16 or or CC 40404 1115 17 later later RB 40404 1115 18 overtake overtake VBP 40404 1115 19 it -PRON- PRP 40404 1115 20 , , , 40404 1115 21 and and CC 40404 1115 22 effacing efface VBG 40404 1115 23 their -PRON- PRP$ 40404 1115 24 falls fall NNS 40404 1115 25 , , , 40404 1115 26 unite unite VB 40404 1115 27 with with IN 40404 1115 28 it -PRON- PRP 40404 1115 29 on on IN 40404 1115 30 a a DT 40404 1115 31 level level NN 40404 1115 32 . . . 40404 1116 1 [ [ -LRB- 40404 1116 2 Illustration illustration NN 40404 1116 3 : : : 40404 1116 4 Fig Fig NNP 40404 1116 5 . . . 40404 1117 1 58 58 CD 40404 1117 2 . . . 40404 1118 1 Maturely maturely RB 40404 1118 2 Dissected Dissected NNP 40404 1118 3 Plateau Plateau NNP 40404 1118 4 near near IN 40404 1118 5 Charleston Charleston NNP 40404 1118 6 , , , 40404 1118 7 West West NNP 40404 1118 8 Virginia Virginia NNP 40404 1118 9 Compare compare VB 40404 1118 10 the the DT 40404 1118 11 number number NN 40404 1118 12 of of IN 40404 1118 13 streams stream NNS 40404 1118 14 in in IN 40404 1118 15 any any DT 40404 1118 16 given give VBN 40404 1118 17 number number NN 40404 1118 18 of of IN 40404 1118 19 square square JJ 40404 1118 20 miles mile NNS 40404 1118 21 with with IN 40404 1118 22 the the DT 40404 1118 23 number number NN 40404 1118 24 on on IN 40404 1118 25 an an DT 40404 1118 26 area area NN 40404 1118 27 of of IN 40404 1118 28 the the DT 40404 1118 29 same same JJ 40404 1118 30 size size NN 40404 1118 31 in in IN 40404 1118 32 the the DT 40404 1118 33 Red Red NNP 40404 1118 34 River River NNP 40404 1118 35 Valley Valley NNP 40404 1118 36 ( ( -LRB- 40404 1118 37 Fig Fig NNP 40404 1118 38 . . . 40404 1119 1 44 44 CD 40404 1119 2 ) ) -RRB- 40404 1119 3 . . . 40404 1120 1 What what WP 40404 1120 2 is be VBZ 40404 1120 3 the the DT 40404 1120 4 shape shape NN 40404 1120 5 of of IN 40404 1120 6 the the DT 40404 1120 7 ridges ridge NNS 40404 1120 8 ? ? . 40404 1121 1 Are be VBP 40404 1121 2 their -PRON- PRP$ 40404 1121 3 summits summit NNS 40404 1121 4 broad broad JJ 40404 1121 5 or or CC 40404 1121 6 narrow narrow JJ 40404 1121 7 ? ? . 40404 1122 1 Are be VBP 40404 1122 2 their -PRON- PRP$ 40404 1122 3 crests crest NNS 40404 1122 4 even even RB 40404 1122 5 or or CC 40404 1122 6 broken break VBN 40404 1122 7 by by IN 40404 1122 8 knobs knob NNS 40404 1122 9 and and CC 40404 1122 10 cols col NNS 40404 1122 11 ( ( -LRB- 40404 1122 12 the the DT 40404 1122 13 depressions depression NNS 40404 1122 14 on on IN 40404 1122 15 the the DT 40404 1122 16 crest crest NN 40404 1122 17 line line NN 40404 1122 18 ) ) -RRB- 40404 1122 19 ? ? . 40404 1123 1 If if IN 40404 1123 2 the the DT 40404 1123 3 latter latter JJ 40404 1123 4 , , , 40404 1123 5 how how WRB 40404 1123 6 deeply deeply RB 40404 1123 7 have have VBP 40404 1123 8 the the DT 40404 1123 9 cols col NNS 40404 1123 10 been be VBN 40404 1123 11 worn wear VBN 40404 1123 12 beneath beneath IN 40404 1123 13 the the DT 40404 1123 14 summits summit NNS 40404 1123 15 of of IN 40404 1123 16 the the DT 40404 1123 17 knobs knob NNS 40404 1123 18 ? ? . 40404 1123 19 ] ] -RRB- 40404 1124 1 Waterfalls waterfall NNS 40404 1124 2 and and CC 40404 1124 3 rapids rapid NNS 40404 1124 4 of of IN 40404 1124 5 all all DT 40404 1124 6 kinds kind NNS 40404 1124 7 are be VBP 40404 1124 8 evanescent evanescent JJ 40404 1124 9 features feature NNS 40404 1124 10 of of IN 40404 1124 11 a a DT 40404 1124 12 river river NN 40404 1124 13 's 's POS 40404 1124 14 youth youth NN 40404 1124 15 . . . 40404 1125 1 Like like IN 40404 1125 2 lakes lake NNS 40404 1125 3 they -PRON- PRP 40404 1125 4 are be VBP 40404 1125 5 soon soon RB 40404 1125 6 destroyed destroy VBN 40404 1125 7 , , , 40404 1125 8 and and CC 40404 1125 9 if if IN 40404 1125 10 any any DT 40404 1125 11 long long JJ 40404 1125 12 time time NN 40404 1125 13 had have VBD 40404 1125 14 already already RB 40404 1125 15 elapsed elapse VBN 40404 1125 16 since since IN 40404 1125 17 their -PRON- PRP$ 40404 1125 18 formation formation NN 40404 1125 19 they -PRON- PRP 40404 1125 20 would would MD 40404 1125 21 have have VB 40404 1125 22 been be VBN 40404 1125 23 obliterated obliterate VBN 40404 1125 24 already already RB 40404 1125 25 . . . 40404 1126 1 = = NFP 40404 1126 2 Local local JJ 40404 1126 3 baselevels.= baselevels.= NN 40404 1126 4 That that DT 40404 1126 5 balanced balanced JJ 40404 1126 6 condition condition NN 40404 1126 7 called call VBN 40404 1126 8 grade grade NN 40404 1126 9 , , , 40404 1126 10 where where WRB 40404 1126 11 a a DT 40404 1126 12 river river NN 40404 1126 13 neither neither CC 40404 1126 14 degrades degrade VBZ 40404 1126 15 its -PRON- PRP$ 40404 1126 16 bed bed NN 40404 1126 17 by by IN 40404 1126 18 erosion erosion NN 40404 1126 19 nor nor CC 40404 1126 20 aggrades aggrade VBZ 40404 1126 21 it -PRON- PRP 40404 1126 22 by by IN 40404 1126 23 deposition deposition NN 40404 1126 24 , , , 40404 1126 25 is be VBZ 40404 1126 26 first first RB 40404 1126 27 attained attain VBN 40404 1126 28 along along IN 40404 1126 29 reaches reach NNS 40404 1126 30 of of IN 40404 1126 31 soft soft JJ 40404 1126 32 rocks rock NNS 40404 1126 33 , , , 40404 1126 34 ungraded ungraded JJ 40404 1126 35 outcrops outcrop NNS 40404 1126 36 of of IN 40404 1126 37 hard hard JJ 40404 1126 38 rocks rock NNS 40404 1126 39 remaining remain VBG 40404 1126 40 as as IN 40404 1126 41 barriers barrier NNS 40404 1126 42 which which WDT 40404 1126 43 give give VBP 40404 1126 44 rise rise NN 40404 1126 45 to to IN 40404 1126 46 rapids rapid NNS 40404 1126 47 or or CC 40404 1126 48 falls fall VBZ 40404 1126 49 . . . 40404 1127 1 Until until IN 40404 1127 2 these these DT 40404 1127 3 barriers barrier NNS 40404 1127 4 are be VBP 40404 1127 5 worn wear VBN 40404 1127 6 away away RP 40404 1127 7 they -PRON- PRP 40404 1127 8 constitute constitute VBP 40404 1127 9 local local JJ 40404 1127 10 baselevels baselevel NNS 40404 1127 11 , , , 40404 1127 12 below below IN 40404 1127 13 which which WDT 40404 1127 14 level level NN 40404 1127 15 the the DT 40404 1127 16 stream stream NN 40404 1127 17 , , , 40404 1127 18 up up RB 40404 1127 19 valley valley NN 40404 1127 20 from from IN 40404 1127 21 them -PRON- PRP 40404 1127 22 , , , 40404 1127 23 can can MD 40404 1127 24 not not RB 40404 1127 25 cut cut VB 40404 1127 26 . . . 40404 1128 1 They -PRON- PRP 40404 1128 2 are be VBP 40404 1128 3 eroded erode VBN 40404 1128 4 to to TO 40404 1128 5 grade grade VB 40404 1128 6 one one NN 40404 1128 7 after after IN 40404 1128 8 another another DT 40404 1128 9 , , , 40404 1128 10 beginning begin VBG 40404 1128 11 with with IN 40404 1128 12 the the DT 40404 1128 13 least least RBS 40404 1128 14 strong strong JJ 40404 1128 15 , , , 40404 1128 16 or or CC 40404 1128 17 the the DT 40404 1128 18 one one NN 40404 1128 19 nearest near JJS 40404 1128 20 the the DT 40404 1128 21 mouth mouth NN 40404 1128 22 of of IN 40404 1128 23 the the DT 40404 1128 24 stream stream NN 40404 1128 25 . . . 40404 1129 1 In in IN 40404 1129 2 a a DT 40404 1129 3 similar similar JJ 40404 1129 4 way way NN 40404 1129 5 the the DT 40404 1129 6 surface surface NN 40404 1129 7 of of IN 40404 1129 8 a a DT 40404 1129 9 lake lake NN 40404 1129 10 in in IN 40404 1129 11 a a DT 40404 1129 12 river river NN 40404 1129 13 's 's POS 40404 1129 14 course course NN 40404 1129 15 constitutes constitute VBZ 40404 1129 16 for for IN 40404 1129 17 all all DT 40404 1129 18 inflowing inflowe VBG 40404 1129 19 streams stream NNS 40404 1129 20 a a DT 40404 1129 21 local local JJ 40404 1129 22 baselevel baselevel NN 40404 1129 23 , , , 40404 1129 24 which which WDT 40404 1129 25 disappears disappear VBZ 40404 1129 26 when when WRB 40404 1129 27 the the DT 40404 1129 28 basin basin NN 40404 1129 29 is be VBZ 40404 1129 30 filled fill VBN 40404 1129 31 or or CC 40404 1129 32 drained drain VBN 40404 1129 33 . . . 40404 1130 1 [ [ -LRB- 40404 1130 2 Illustration illustration NN 40404 1130 3 : : : 40404 1130 4 Fig Fig NNP 40404 1130 5 . . . 40404 1131 1 59 59 CD 40404 1131 2 . . . 40404 1132 1 A a DT 40404 1132 2 Maturity Maturity NNP 40404 1132 3 Dissected dissect VBN 40404 1132 4 Region region NN 40404 1132 5 of of IN 40404 1132 6 Slight Slight NNP 40404 1132 7 Relief Relief NNP 40404 1132 8 , , , 40404 1132 9 Iowa Iowa NNP 40404 1132 10 ] ] -RRB- 40404 1132 11 Mature Mature NNP 40404 1132 12 And and CC 40404 1132 13 Old Old NNP 40404 1132 14 Rivers Rivers NNPS 40404 1132 15 Maturity Maturity NNP 40404 1132 16 is be VBZ 40404 1132 17 the the DT 40404 1132 18 stage stage NN 40404 1132 19 of of IN 40404 1132 20 a a DT 40404 1132 21 river river NN 40404 1132 22 's 's POS 40404 1132 23 complete complete JJ 40404 1132 24 development development NN 40404 1132 25 and and CC 40404 1132 26 most most RBS 40404 1132 27 effective effective JJ 40404 1132 28 work work NN 40404 1132 29 . . . 40404 1133 1 The the DT 40404 1133 2 river river NN 40404 1133 3 system system NN 40404 1133 4 now now RB 40404 1133 5 has have VBZ 40404 1133 6 well well RB 40404 1133 7 under under IN 40404 1133 8 way way NN 40404 1133 9 its -PRON- PRP$ 40404 1133 10 great great JJ 40404 1133 11 task task NN 40404 1133 12 of of IN 40404 1133 13 wearing wear VBG 40404 1133 14 down down IN 40404 1133 15 the the DT 40404 1133 16 land land NN 40404 1133 17 mass mass NN 40404 1133 18 which which WDT 40404 1133 19 it -PRON- PRP 40404 1133 20 drains drain VBZ 40404 1133 21 and and CC 40404 1133 22 carrying carry VBG 40404 1133 23 it -PRON- PRP 40404 1133 24 particle particle NN 40404 1133 25 by by IN 40404 1133 26 particle particle NN 40404 1133 27 to to IN 40404 1133 28 the the DT 40404 1133 29 sea sea NN 40404 1133 30 . . . 40404 1134 1 The the DT 40404 1134 2 relief relief NN 40404 1134 3 of of IN 40404 1134 4 the the DT 40404 1134 5 land land NN 40404 1134 6 is be VBZ 40404 1134 7 now now RB 40404 1134 8 at at IN 40404 1134 9 its -PRON- PRP$ 40404 1134 10 greatest great JJS 40404 1134 11 ; ; : 40404 1134 12 for for IN 40404 1134 13 the the DT 40404 1134 14 main main JJ 40404 1134 15 channels channel NNS 40404 1134 16 have have VBP 40404 1134 17 been be VBN 40404 1134 18 sunk sink VBN 40404 1134 19 to to TO 40404 1134 20 grade grade NN 40404 1134 21 , , , 40404 1134 22 while while IN 40404 1134 23 the the DT 40404 1134 24 divides divide NNS 40404 1134 25 remain remain VBP 40404 1134 26 but but CC 40404 1134 27 little little JJ 40404 1134 28 worn worn JJ 40404 1134 29 below below IN 40404 1134 30 their -PRON- PRP$ 40404 1134 31 initial initial JJ 40404 1134 32 altitudes altitude NNS 40404 1134 33 . . . 40404 1135 1 Ground ground NN 40404 1135 2 water water NN 40404 1135 3 now now RB 40404 1135 4 stands stand VBZ 40404 1135 5 low low JJ 40404 1135 6 . . . 40404 1136 1 The the DT 40404 1136 2 run run NN 40404 1136 3 - - HYPH 40404 1136 4 off off RP 40404 1136 5 washes wash NNS 40404 1136 6 directly directly RB 40404 1136 7 to to IN 40404 1136 8 the the DT 40404 1136 9 streams stream NNS 40404 1136 10 , , , 40404 1136 11 with with IN 40404 1136 12 the the DT 40404 1136 13 least least JJS 40404 1136 14 delay delay NN 40404 1136 15 and and CC 40404 1136 16 loss loss NN 40404 1136 17 by by IN 40404 1136 18 evaporation evaporation NN 40404 1136 19 in in IN 40404 1136 20 ponds pond NNS 40404 1136 21 and and CC 40404 1136 22 marches marche NNS 40404 1136 23 ; ; : 40404 1136 24 the the DT 40404 1136 25 discharge discharge NN 40404 1136 26 of of IN 40404 1136 27 the the DT 40404 1136 28 river river NN 40404 1136 29 is be VBZ 40404 1136 30 therefore therefore RB 40404 1136 31 at at IN 40404 1136 32 its -PRON- PRP$ 40404 1136 33 height height NN 40404 1136 34 . . . 40404 1137 1 The the DT 40404 1137 2 entire entire JJ 40404 1137 3 region region NN 40404 1137 4 is be VBZ 40404 1137 5 dissected dissect VBN 40404 1137 6 by by IN 40404 1137 7 stream stream NN 40404 1137 8 ways way NNS 40404 1137 9 . . . 40404 1138 1 The the DT 40404 1138 2 area area NN 40404 1138 3 of of IN 40404 1138 4 valley valley NN 40404 1138 5 slopes slope NNS 40404 1138 6 is be VBZ 40404 1138 7 now now RB 40404 1138 8 largest large JJS 40404 1138 9 and and CC 40404 1138 10 sheds shed VBZ 40404 1138 11 to to IN 40404 1138 12 the the DT 40404 1138 13 streams stream NNS 40404 1138 14 a a DT 40404 1138 15 heavier heavy JJR 40404 1138 16 load load NN 40404 1138 17 of of IN 40404 1138 18 waste waste NN 40404 1138 19 than than IN 40404 1138 20 ever ever RB 40404 1138 21 before before RB 40404 1138 22 . . . 40404 1139 1 At at IN 40404 1139 2 maturity maturity NN 40404 1139 3 the the DT 40404 1139 4 river river NN 40404 1139 5 system system NN 40404 1139 6 is be VBZ 40404 1139 7 doing do VBG 40404 1139 8 its -PRON- PRP$ 40404 1139 9 greatest great JJS 40404 1139 10 amount amount NN 40404 1139 11 of of IN 40404 1139 12 work work NN 40404 1139 13 both both CC 40404 1139 14 in in IN 40404 1139 15 erosion erosion NN 40404 1139 16 and and CC 40404 1139 17 in in IN 40404 1139 18 the the DT 40404 1139 19 carriage carriage NN 40404 1139 20 of of IN 40404 1139 21 water water NN 40404 1139 22 and and CC 40404 1139 23 of of IN 40404 1139 24 waste waste NN 40404 1139 25 to to IN 40404 1139 26 the the DT 40404 1139 27 sea sea NN 40404 1139 28 . . . 40404 1140 1 [ [ -LRB- 40404 1140 2 Illustration illustration NN 40404 1140 3 : : : 40404 1140 4 Fig Fig NNP 40404 1140 5 . . . 40404 1141 1 60 60 CD 40404 1141 2 . . . 40404 1142 1 Successive successive JJ 40404 1142 2 Stages Stages NNPS 40404 1142 3 , , , 40404 1142 4 _ _ NNP 40404 1142 5 A A NNP 40404 1142 6 _ _ NNP 40404 1142 7 , , , 40404 1142 8 _ _ NNP 40404 1142 9 B B NNP 40404 1142 10 _ _ NNP 40404 1142 11 , , , 40404 1142 12 _ _ NNP 40404 1142 13 C C NNP 40404 1142 14 _ _ NNP 40404 1142 15 , , , 40404 1142 16 and and CC 40404 1142 17 _ _ NNP 40404 1142 18 D D NNP 40404 1142 19 _ _ NNP 40404 1142 20 , , , 40404 1142 21 in in IN 40404 1142 22 Valley Valley NNP 40404 1142 23 - - HYPH 40404 1142 24 Widening Widening NNP 40404 1142 25 by by IN 40404 1142 26 Planation Planation NNP 40404 1142 27 Describe Describe NNP 40404 1142 28 valley valley NN 40404 1142 29 _ _ NNP 40404 1142 30 A A NNP 40404 1142 31 _ _ NNP 40404 1142 32 . . . 40404 1143 1 What what WDT 40404 1143 2 changes change NNS 40404 1143 3 have have VBP 40404 1143 4 taken take VBN 40404 1143 5 place place NN 40404 1143 6 in in IN 40404 1143 7 _ _ NNP 40404 1143 8 B B NNP 40404 1143 9 _ _ NNP 40404 1143 10 , , , 40404 1143 11 _ _ NNP 40404 1143 12 C C NNP 40404 1143 13 _ _ NNP 40404 1143 14 , , , 40404 1143 15 and and CC 40404 1143 16 _ _ NNP 40404 1143 17 D D NNP 40404 1143 18 _ _ NNP 40404 1143 19 ? ? . 40404 1144 1 Do do VBP 40404 1144 2 the the DT 40404 1144 3 river river NN 40404 1144 4 bends bend NNS 40404 1144 5 remain remain VBP 40404 1144 6 stationary stationary JJ 40404 1144 7 or or CC 40404 1144 8 move move VB 40404 1144 9 up up RB 40404 1144 10 or or CC 40404 1144 11 down down IN 40404 1144 12 valley valley NN 40404 1144 13 ? ? . 40404 1145 1 With with IN 40404 1145 2 what what WDT 40404 1145 3 effect effect NN 40404 1145 4 on on IN 40404 1145 5 the the DT 40404 1145 6 projecting projecting NN 40404 1145 7 spurs spur NNS 40404 1145 8 of of IN 40404 1145 9 the the DT 40404 1145 10 valley valley NN 40404 1145 11 sides side NNS 40404 1145 12 ? ? . 40404 1146 1 Draw draw VB 40404 1146 2 diagrams diagram NNS 40404 1146 3 showing show VBG 40404 1146 4 a a DT 40404 1146 5 still still RB 40404 1146 6 later later JJ 40404 1146 7 stage stage NN 40404 1146 8 than than IN 40404 1146 9 _ _ NNP 40404 1146 10 D D NNP 40404 1146 11 _ _ NNP 40404 1146 12 ] ] -RRB- 40404 1146 13 = = SYM 40404 1146 14 Lateral lateral JJ 40404 1146 15 erosion.= erosion.= NNS 40404 1146 16 On on IN 40404 1146 17 reaching reach VBG 40404 1146 18 grade grade NN 40404 1146 19 a a DT 40404 1146 20 river river NN 40404 1146 21 ceases cease VBZ 40404 1146 22 to to TO 40404 1146 23 scour scour VB 40404 1146 24 its -PRON- PRP$ 40404 1146 25 bed bed NN 40404 1146 26 , , , 40404 1146 27 and and CC 40404 1146 28 it -PRON- PRP 40404 1146 29 does do VBZ 40404 1146 30 not not RB 40404 1146 31 again again RB 40404 1146 32 begin begin VB 40404 1146 33 to to TO 40404 1146 34 do do VB 40404 1146 35 so so RB 40404 1146 36 until until IN 40404 1146 37 some some DT 40404 1146 38 change change NN 40404 1146 39 in in IN 40404 1146 40 load load NN 40404 1146 41 or or CC 40404 1146 42 volume volume NN 40404 1146 43 enables enable VBZ 40404 1146 44 it -PRON- PRP 40404 1146 45 to to TO 40404 1146 46 find find VB 40404 1146 47 grade grade NN 40404 1146 48 at at IN 40404 1146 49 a a DT 40404 1146 50 lower low JJR 40404 1146 51 level level NN 40404 1146 52 . . . 40404 1147 1 On on IN 40404 1147 2 the the DT 40404 1147 3 other other JJ 40404 1147 4 hand hand NN 40404 1147 5 , , , 40404 1147 6 a a DT 40404 1147 7 stream stream NN 40404 1147 8 erodes erode VBZ 40404 1147 9 its -PRON- PRP$ 40404 1147 10 banks bank NNS 40404 1147 11 at at IN 40404 1147 12 all all DT 40404 1147 13 stages stage NNS 40404 1147 14 in in IN 40404 1147 15 its -PRON- PRP$ 40404 1147 16 history history NN 40404 1147 17 , , , 40404 1147 18 and and CC 40404 1147 19 with with IN 40404 1147 20 graded grade VBN 40404 1147 21 rivers river NNS 40404 1147 22 this this DT 40404 1147 23 process process NN 40404 1147 24 , , , 40404 1147 25 called call VBD 40404 1147 26 lateral lateral JJ 40404 1147 27 erosion erosion NN 40404 1147 28 , , , 40404 1147 29 or or CC 40404 1147 30 _ _ NNP 40404 1147 31 planation planation NN 40404 1147 32 _ _ NNP 40404 1147 33 , , , 40404 1147 34 is be VBZ 40404 1147 35 specially specially RB 40404 1147 36 important important JJ 40404 1147 37 . . . 40404 1148 1 The the DT 40404 1148 2 current current NN 40404 1148 3 of of IN 40404 1148 4 a a DT 40404 1148 5 stream stream NN 40404 1148 6 follows follow VBZ 40404 1148 7 the the DT 40404 1148 8 outer outer JJ 40404 1148 9 side side NN 40404 1148 10 of of IN 40404 1148 11 all all DT 40404 1148 12 curves curve NNS 40404 1148 13 or or CC 40404 1148 14 bends bend NNS 40404 1148 15 in in IN 40404 1148 16 the the DT 40404 1148 17 channel channel NN 40404 1148 18 , , , 40404 1148 19 and and CC 40404 1148 20 on on IN 40404 1148 21 this this DT 40404 1148 22 side side NN 40404 1148 23 it -PRON- PRP 40404 1148 24 excavates excavate VBZ 40404 1148 25 its -PRON- PRP$ 40404 1148 26 bed bed NN 40404 1148 27 the the DT 40404 1148 28 deepest deep JJS 40404 1148 29 and and CC 40404 1148 30 continually continually RB 40404 1148 31 wears wear VBZ 40404 1148 32 and and CC 40404 1148 33 saps sap VBZ 40404 1148 34 its -PRON- PRP$ 40404 1148 35 banks bank NNS 40404 1148 36 . . . 40404 1149 1 On on IN 40404 1149 2 the the DT 40404 1149 3 inner inner JJ 40404 1149 4 side side NN 40404 1149 5 deposition deposition NN 40404 1149 6 takes take VBZ 40404 1149 7 place place NN 40404 1149 8 in in IN 40404 1149 9 the the DT 40404 1149 10 more more RBR 40404 1149 11 shallow shallow JJ 40404 1149 12 and and CC 40404 1149 13 slower slow RBR 40404 1149 14 - - HYPH 40404 1149 15 moving move VBG 40404 1149 16 water water NN 40404 1149 17 . . . 40404 1150 1 The the DT 40404 1150 2 inner inner JJ 40404 1150 3 bank bank NN 40404 1150 4 of of IN 40404 1150 5 bends bend NNS 40404 1150 6 is be VBZ 40404 1150 7 thus thus RB 40404 1150 8 built build VBN 40404 1150 9 out out RP 40404 1150 10 while while IN 40404 1150 11 the the DT 40404 1150 12 outer outer JJ 40404 1150 13 bank bank NN 40404 1150 14 is be VBZ 40404 1150 15 worn wear VBN 40404 1150 16 away away RP 40404 1150 17 . . . 40404 1151 1 By by IN 40404 1151 2 swinging swinge VBG 40404 1151 3 its -PRON- PRP$ 40404 1151 4 curves curve NNS 40404 1151 5 against against IN 40404 1151 6 the the DT 40404 1151 7 valley valley NNP 40404 1151 8 sides side VBZ 40404 1151 9 a a DT 40404 1151 10 graded grade VBN 40404 1151 11 river river NN 40404 1151 12 continually continually RB 40404 1151 13 cuts cut VBZ 40404 1151 14 a a DT 40404 1151 15 wider wide JJR 40404 1151 16 and and CC 40404 1151 17 wider wide JJR 40404 1151 18 floor floor NN 40404 1151 19 . . . 40404 1152 1 The the DT 40404 1152 2 V V NNP 40404 1152 3 - - HYPH 40404 1152 4 valley valley NNP 40404 1152 5 of of IN 40404 1152 6 youth youth NN 40404 1152 7 is be VBZ 40404 1152 8 thus thus RB 40404 1152 9 changed change VBN 40404 1152 10 by by IN 40404 1152 11 planation planation NN 40404 1152 12 to to IN 40404 1152 13 a a DT 40404 1152 14 flat flat JJ 40404 1152 15 - - HYPH 40404 1152 16 floored floored JJ 40404 1152 17 valley valley NN 40404 1152 18 with with IN 40404 1152 19 flaring flare VBG 40404 1152 20 sides side NNS 40404 1152 21 which which WDT 40404 1152 22 gradually gradually RB 40404 1152 23 become become VBP 40404 1152 24 subdued subdue VBN 40404 1152 25 by by IN 40404 1152 26 the the DT 40404 1152 27 weather weather NN 40404 1152 28 to to IN 40404 1152 29 gentle gentle JJ 40404 1152 30 slopes slope NNS 40404 1152 31 . . . 40404 1153 1 While while IN 40404 1153 2 widening widen VBG 40404 1153 3 their -PRON- PRP$ 40404 1153 4 valleys valley NNS 40404 1153 5 streams stream NNS 40404 1153 6 maintain maintain VBP 40404 1153 7 a a DT 40404 1153 8 constant constant JJ 40404 1153 9 width width NN 40404 1153 10 of of IN 40404 1153 11 channel channel NN 40404 1153 12 , , , 40404 1153 13 so so IN 40404 1153 14 that that IN 40404 1153 15 a a DT 40404 1153 16 wide wide RB 40404 1153 17 - - HYPH 40404 1153 18 floored floored JJ 40404 1153 19 valley valley NN 40404 1153 20 does do VBZ 40404 1153 21 not not RB 40404 1153 22 signify signify VB 40404 1153 23 that that IN 40404 1153 24 it -PRON- PRP 40404 1153 25 ever ever RB 40404 1153 26 was be VBD 40404 1153 27 occupied occupy VBN 40404 1153 28 by by IN 40404 1153 29 a a DT 40404 1153 30 river river NN 40404 1153 31 of of IN 40404 1153 32 equal equal JJ 40404 1153 33 width width NN 40404 1153 34 . . . 40404 1154 1 = = NFP 40404 1154 2 The the DT 40404 1154 3 gradient.= gradient.= NN 40404 1154 4 The the DT 40404 1154 5 gradients gradient NNS 40404 1154 6 of of IN 40404 1154 7 graded grade VBN 40404 1154 8 rivers river NNS 40404 1154 9 differ differ VBP 40404 1154 10 widely widely RB 40404 1154 11 . . . 40404 1155 1 A a DT 40404 1155 2 large large JJ 40404 1155 3 river river NN 40404 1155 4 with with IN 40404 1155 5 a a DT 40404 1155 6 light light JJ 40404 1155 7 load load NN 40404 1155 8 reaches reach VBZ 40404 1155 9 grade grade NN 40404 1155 10 on on IN 40404 1155 11 a a DT 40404 1155 12 faint faint JJ 40404 1155 13 slope slope NN 40404 1155 14 , , , 40404 1155 15 while while IN 40404 1155 16 a a DT 40404 1155 17 smaller small JJR 40404 1155 18 stream stream NN 40404 1155 19 heavily heavily RB 40404 1155 20 burdened burden VBN 40404 1155 21 with with IN 40404 1155 22 waste waste NN 40404 1155 23 requires require VBZ 40404 1155 24 a a DT 40404 1155 25 steep steep JJ 40404 1155 26 slope slope NN 40404 1155 27 to to TO 40404 1155 28 give give VB 40404 1155 29 it -PRON- PRP 40404 1155 30 velocity velocity NN 40404 1155 31 sufficient sufficient JJ 40404 1155 32 to to TO 40404 1155 33 move move VB 40404 1155 34 the the DT 40404 1155 35 load load NN 40404 1155 36 . . . 40404 1156 1 The the DT 40404 1156 2 Platte Platte NNP 40404 1156 3 , , , 40404 1156 4 a a DT 40404 1156 5 graded grade VBN 40404 1156 6 river river NN 40404 1156 7 of of IN 40404 1156 8 Nebraska Nebraska NNP 40404 1156 9 with with IN 40404 1156 10 its -PRON- PRP$ 40404 1156 11 headwaters headwater NNS 40404 1156 12 in in IN 40404 1156 13 the the DT 40404 1156 14 Rocky Rocky NNP 40404 1156 15 Mountains Mountains NNPS 40404 1156 16 , , , 40404 1156 17 is be VBZ 40404 1156 18 enfeebled enfeeble VBN 40404 1156 19 by by IN 40404 1156 20 the the DT 40404 1156 21 semi semi JJ 40404 1156 22 - - JJ 40404 1156 23 arid arid JJ 40404 1156 24 climate climate NN 40404 1156 25 of of IN 40404 1156 26 the the DT 40404 1156 27 Great Great NNP 40404 1156 28 Plains Plains NNPS 40404 1156 29 and and CC 40404 1156 30 surcharged surcharge VBN 40404 1156 31 with with IN 40404 1156 32 the the DT 40404 1156 33 waste waste NN 40404 1156 34 brought bring VBD 40404 1156 35 down down RP 40404 1156 36 both both CC 40404 1156 37 by by IN 40404 1156 38 its -PRON- PRP$ 40404 1156 39 branches branch NNS 40404 1156 40 in in IN 40404 1156 41 the the DT 40404 1156 42 mountains mountain NNS 40404 1156 43 and and CC 40404 1156 44 by by IN 40404 1156 45 those those DT 40404 1156 46 whose whose WP$ 40404 1156 47 tracks track NNS 40404 1156 48 lie lie VBP 40404 1156 49 over over IN 40404 1156 50 the the DT 40404 1156 51 soft soft JJ 40404 1156 52 rocks rock NNS 40404 1156 53 of of IN 40404 1156 54 the the DT 40404 1156 55 plains plain NNS 40404 1156 56 . . . 40404 1157 1 It -PRON- PRP 40404 1157 2 is be VBZ 40404 1157 3 compelled compel VBN 40404 1157 4 to to TO 40404 1157 5 maintain maintain VB 40404 1157 6 a a DT 40404 1157 7 gradient gradient NN 40404 1157 8 of of IN 40404 1157 9 eight eight CD 40404 1157 10 feet foot NNS 40404 1157 11 to to IN 40404 1157 12 the the DT 40404 1157 13 mile mile NN 40404 1157 14 in in IN 40404 1157 15 western western JJ 40404 1157 16 Nebraska Nebraska NNP 40404 1157 17 . . . 40404 1158 1 The the DT 40404 1158 2 Ohio Ohio NNP 40404 1158 3 reaches reach VBZ 40404 1158 4 grade grade NN 40404 1158 5 with with IN 40404 1158 6 a a DT 40404 1158 7 slope slope NN 40404 1158 8 of of IN 40404 1158 9 less less JJR 40404 1158 10 than than IN 40404 1158 11 four four CD 40404 1158 12 inches inch NNS 40404 1158 13 to to IN 40404 1158 14 the the DT 40404 1158 15 mile mile NN 40404 1158 16 from from IN 40404 1158 17 Cincinnati Cincinnati NNP 40404 1158 18 to to IN 40404 1158 19 its -PRON- PRP$ 40404 1158 20 mouth mouth NN 40404 1158 21 , , , 40404 1158 22 and and CC 40404 1158 23 the the DT 40404 1158 24 powerful powerful JJ 40404 1158 25 Mississippi Mississippi NNP 40404 1158 26 washes wash NNS 40404 1158 27 along along IN 40404 1158 28 its -PRON- PRP$ 40404 1158 29 load load NN 40404 1158 30 with with IN 40404 1158 31 a a DT 40404 1158 32 fall fall NN 40404 1158 33 of of IN 40404 1158 34 but but CC 40404 1158 35 three three CD 40404 1158 36 inches inch NNS 40404 1158 37 per per IN 40404 1158 38 mile mile NN 40404 1158 39 from from IN 40404 1158 40 Cairo Cairo NNP 40404 1158 41 to to IN 40404 1158 42 the the DT 40404 1158 43 Gulf Gulf NNP 40404 1158 44 . . . 40404 1159 1 Other other JJ 40404 1159 2 things thing NNS 40404 1159 3 being be VBG 40404 1159 4 equal equal JJ 40404 1159 5 , , , 40404 1159 6 which which WDT 40404 1159 7 of of IN 40404 1159 8 graded graded JJ 40404 1159 9 streams stream NNS 40404 1159 10 will will MD 40404 1159 11 have have VB 40404 1159 12 the the DT 40404 1159 13 steeper steeper NN 40404 1159 14 gradient gradient NN 40404 1159 15 , , , 40404 1159 16 a a DT 40404 1159 17 trunk trunk NN 40404 1159 18 stream stream NN 40404 1159 19 or or CC 40404 1159 20 its -PRON- PRP$ 40404 1159 21 tributaries tributary NNS 40404 1159 22 ? ? . 40404 1160 1 a a DT 40404 1160 2 stream stream NN 40404 1160 3 supplied supply VBN 40404 1160 4 with with IN 40404 1160 5 gravel gravel NN 40404 1160 6 or or CC 40404 1160 7 one one CD 40404 1160 8 with with IN 40404 1160 9 silt silt NN 40404 1160 10 ? ? . 40404 1161 1 Other other JJ 40404 1161 2 factors factor NNS 40404 1161 3 remaining remain VBG 40404 1161 4 the the DT 40404 1161 5 same same JJ 40404 1161 6 , , , 40404 1161 7 what what WDT 40404 1161 8 changes change NNS 40404 1161 9 would would MD 40404 1161 10 occur occur VB 40404 1161 11 if if IN 40404 1161 12 the the DT 40404 1161 13 Platte Platte NNP 40404 1161 14 should should MD 40404 1161 15 increase increase VB 40404 1161 16 in in IN 40404 1161 17 volume volume NN 40404 1161 18 ? ? . 40404 1162 1 What what WDT 40404 1162 2 changes change NNS 40404 1162 3 would would MD 40404 1162 4 occur occur VB 40404 1162 5 if if IN 40404 1162 6 the the DT 40404 1162 7 load load NN 40404 1162 8 should should MD 40404 1162 9 be be VB 40404 1162 10 increased increase VBN 40404 1162 11 in in IN 40404 1162 12 amount amount NN 40404 1162 13 or or CC 40404 1162 14 in in IN 40404 1162 15 coarseness coarseness NN 40404 1162 16 ? ? . 40404 1163 1 [ [ -LRB- 40404 1163 2 Illustration illustration NN 40404 1163 3 : : : 40404 1163 4 Fig Fig NNP 40404 1163 5 . . . 40404 1164 1 61 61 CD 40404 1164 2 . . . 40404 1165 1 Successive Successive NNP 40404 1165 2 Cross Cross NNP 40404 1165 3 Sections Sections NNPS 40404 1165 4 of of IN 40404 1165 5 a a DT 40404 1165 6 Region region NN 40404 1165 7 as as IN 40404 1165 8 it -PRON- PRP 40404 1165 9 advances advance VBZ 40404 1165 10 from from IN 40404 1165 11 Infancy Infancy NNP 40404 1165 12 _ _ NNP 40404 1165 13 a a DT 40404 1165 14 _ _ NNP 40404 1165 15 , , , 40404 1165 16 to to IN 40404 1165 17 Old Old NNP 40404 1165 18 Age Age NNP 40404 1165 19 _ _ NNP 40404 1165 20 e e NNP 40404 1165 21 _ _ NNP 40404 1165 22 ] ] -RRB- 40404 1165 23 _ _ NNP 40404 1165 24 The the DT 40404 1165 25 old old JJ 40404 1165 26 age age NN 40404 1165 27 of of IN 40404 1165 28 rivers river NNS 40404 1165 29 . . . 40404 1165 30 _ _ NNP 40404 1165 31 As as IN 40404 1165 32 rivers river NNS 40404 1165 33 pass pass VBP 40404 1165 34 their -PRON- PRP$ 40404 1165 35 prime prime NN 40404 1165 36 , , , 40404 1165 37 as as IN 40404 1165 38 denudation denudation NN 40404 1165 39 lowers lower VBZ 40404 1165 40 the the DT 40404 1165 41 relief relief NN 40404 1165 42 of of IN 40404 1165 43 the the DT 40404 1165 44 region region NN 40404 1165 45 , , , 40404 1165 46 less less JJR 40404 1165 47 waste waste NN 40404 1165 48 and and CC 40404 1165 49 finer finer NN 40404 1165 50 is be VBZ 40404 1165 51 washed wash VBN 40404 1165 52 over over IN 40404 1165 53 the the DT 40404 1165 54 gentler gentle JJR 40404 1165 55 slopes slope NNS 40404 1165 56 of of IN 40404 1165 57 the the DT 40404 1165 58 lowering lower VBG 40404 1165 59 hills hill NNS 40404 1165 60 . . . 40404 1166 1 With with IN 40404 1166 2 smaller small JJR 40404 1166 3 loads load NNS 40404 1166 4 to to TO 40404 1166 5 carry carry VB 40404 1166 6 , , , 40404 1166 7 the the DT 40404 1166 8 rivers river NNS 40404 1166 9 now now RB 40404 1166 10 deepen deepen VBP 40404 1166 11 their -PRON- PRP$ 40404 1166 12 valleys valley NNS 40404 1166 13 and and CC 40404 1166 14 find find VB 40404 1166 15 grade grade NN 40404 1166 16 with with IN 40404 1166 17 fainter fainter NN 40404 1166 18 declivities declivity NNS 40404 1166 19 nearer nearer VB 40404 1166 20 the the DT 40404 1166 21 level level NN 40404 1166 22 of of IN 40404 1166 23 the the DT 40404 1166 24 sea sea NN 40404 1166 25 . . . 40404 1167 1 This this DT 40404 1167 2 limit limit NN 40404 1167 3 of of IN 40404 1167 4 the the DT 40404 1167 5 level level NN 40404 1167 6 of of IN 40404 1167 7 the the DT 40404 1167 8 sea sea NN 40404 1167 9 beneath beneath IN 40404 1167 10 which which WDT 40404 1167 11 they -PRON- PRP 40404 1167 12 can can MD 40404 1167 13 not not RB 40404 1167 14 erode erode VB 40404 1167 15 is be VBZ 40404 1167 16 known know VBN 40404 1167 17 as as IN 40404 1167 18 _ _ NNP 40404 1167 19 baselevel baselevel NN 40404 1167 20 _ _ NNP 40404 1167 21 . . . 40404 1168 1 [ [ -LRB- 40404 1168 2 1 1 CD 40404 1168 3 ] ] -RRB- 40404 1168 4 As as IN 40404 1168 5 streams stream NNS 40404 1168 6 grow grow VBP 40404 1168 7 old old JJ 40404 1168 8 they -PRON- PRP 40404 1168 9 approach approach VBP 40404 1168 10 more more RBR 40404 1168 11 and and CC 40404 1168 12 more more RBR 40404 1168 13 closely closely RB 40404 1168 14 to to IN 40404 1168 15 baselevel baselevel VB 40404 1168 16 , , , 40404 1168 17 although although IN 40404 1168 18 they -PRON- PRP 40404 1168 19 are be VBP 40404 1168 20 never never RB 40404 1168 21 able able JJ 40404 1168 22 to to TO 40404 1168 23 attain attain VB 40404 1168 24 it -PRON- PRP 40404 1168 25 . . . 40404 1169 1 Some some DT 40404 1169 2 slight slight JJ 40404 1169 3 slope slope NN 40404 1169 4 is be VBZ 40404 1169 5 needed need VBN 40404 1169 6 that that DT 40404 1169 7 water water NN 40404 1169 8 may may MD 40404 1169 9 flow flow VB 40404 1169 10 and and CC 40404 1169 11 waste waste NN 40404 1169 12 be be VB 40404 1169 13 transported transport VBN 40404 1169 14 over over IN 40404 1169 15 the the DT 40404 1169 16 land land NN 40404 1169 17 . . . 40404 1170 1 Meanwhile meanwhile RB 40404 1170 2 the the DT 40404 1170 3 relief relief NN 40404 1170 4 of of IN 40404 1170 5 the the DT 40404 1170 6 land land NN 40404 1170 7 has have VBZ 40404 1170 8 ever ever RB 40404 1170 9 lessened lessen VBN 40404 1170 10 . . . 40404 1171 1 The the DT 40404 1171 2 master master NN 40404 1171 3 streams stream VBZ 40404 1171 4 and and CC 40404 1171 5 their -PRON- PRP$ 40404 1171 6 main main JJ 40404 1171 7 tributaries tributary NNS 40404 1171 8 now now RB 40404 1171 9 wander wander VBP 40404 1171 10 with with IN 40404 1171 11 sluggish sluggish JJ 40404 1171 12 currents current NNS 40404 1171 13 over over IN 40404 1171 14 the the DT 40404 1171 15 broad broad JJ 40404 1171 16 valley valley NN 40404 1171 17 floors floor NNS 40404 1171 18 which which WDT 40404 1171 19 they -PRON- PRP 40404 1171 20 have have VBP 40404 1171 21 planed plane VBN 40404 1171 22 away away RB 40404 1171 23 ; ; : 40404 1171 24 while while IN 40404 1171 25 under under IN 40404 1171 26 the the DT 40404 1171 27 erosion erosion NN 40404 1171 28 of of IN 40404 1171 29 their -PRON- PRP$ 40404 1171 30 innumerable innumerable JJ 40404 1171 31 branches branch NNS 40404 1171 32 and and CC 40404 1171 33 the the DT 40404 1171 34 wear wear NN 40404 1171 35 of of IN 40404 1171 36 the the DT 40404 1171 37 weather weather NN 40404 1171 38 the the DT 40404 1171 39 divides divide NNS 40404 1171 40 everywhere everywhere RB 40404 1171 41 are be VBP 40404 1171 42 lowered lower VBN 40404 1171 43 and and CC 40404 1171 44 subdued subdue VBD 40404 1171 45 to to IN 40404 1171 46 more more JJR 40404 1171 47 and and CC 40404 1171 48 more more RBR 40404 1171 49 gentle gentle JJ 40404 1171 50 slopes slope NNS 40404 1171 51 . . . 40404 1172 1 Mountains mountain NNS 40404 1172 2 and and CC 40404 1172 3 high high JJ 40404 1172 4 plateaus plateaus NN 40404 1172 5 are be VBP 40404 1172 6 thus thus RB 40404 1172 7 reduced reduce VBN 40404 1172 8 to to IN 40404 1172 9 rolling rolling JJ 40404 1172 10 hills hill NNS 40404 1172 11 , , , 40404 1172 12 and and CC 40404 1172 13 at at IN 40404 1172 14 last last RB 40404 1172 15 to to IN 40404 1172 16 plains plain NNS 40404 1172 17 , , , 40404 1172 18 surmounted surmount VBN 40404 1172 19 only only RB 40404 1172 20 by by IN 40404 1172 21 such such JJ 40404 1172 22 hills hill NNS 40404 1172 23 as as IN 40404 1172 24 may may MD 40404 1172 25 still still RB 40404 1172 26 be be VB 40404 1172 27 unreduced unreduced JJ 40404 1172 28 to to IN 40404 1172 29 the the DT 40404 1172 30 common common JJ 40404 1172 31 level level NN 40404 1172 32 , , , 40404 1172 33 because because IN 40404 1172 34 of of IN 40404 1172 35 the the DT 40404 1172 36 harder hard JJR 40404 1172 37 rocks rock NNS 40404 1172 38 of of IN 40404 1172 39 which which WDT 40404 1172 40 they -PRON- PRP 40404 1172 41 are be VBP 40404 1172 42 composed compose VBN 40404 1172 43 or or CC 40404 1172 44 because because IN 40404 1172 45 of of IN 40404 1172 46 their -PRON- PRP$ 40404 1172 47 distance distance NN 40404 1172 48 from from IN 40404 1172 49 the the DT 40404 1172 50 main main JJ 40404 1172 51 erosion erosion NN 40404 1172 52 channels channel NNS 40404 1172 53 . . . 40404 1173 1 Such such JJ 40404 1173 2 regions region NNS 40404 1173 3 of of IN 40404 1173 4 faint faint JJ 40404 1173 5 relief relief NN 40404 1173 6 , , , 40404 1173 7 worn wear VBN 40404 1173 8 down down RP 40404 1173 9 to to IN 40404 1173 10 near near IN 40404 1173 11 base base NN 40404 1173 12 level level NN 40404 1173 13 by by IN 40404 1173 14 subaërial subaërial JJ 40404 1173 15 agencies agency NNS 40404 1173 16 , , , 40404 1173 17 are be VBP 40404 1173 18 known know VBN 40404 1173 19 as as IN 40404 1173 20 _ _ NNP 40404 1173 21 peneplains peneplain NNS 40404 1173 22 _ _ NNP 40404 1173 23 ( ( -LRB- 40404 1173 24 almost almost RB 40404 1173 25 plains plain NNS 40404 1173 26 ) ) -RRB- 40404 1173 27 . . . 40404 1174 1 Any any DT 40404 1174 2 residual residual JJ 40404 1174 3 masses masse NNS 40404 1174 4 which which WDT 40404 1174 5 rise rise VBP 40404 1174 6 above above IN 40404 1174 7 them -PRON- PRP 40404 1174 8 are be VBP 40404 1174 9 called call VBN 40404 1174 10 _ _ NNP 40404 1174 11 monadnocks monadnock NNS 40404 1174 12 _ _ NNP 40404 1174 13 , , , 40404 1174 14 from from IN 40404 1174 15 the the DT 40404 1174 16 name name NN 40404 1174 17 of of IN 40404 1174 18 a a DT 40404 1174 19 conical conical JJ 40404 1174 20 peak peak NN 40404 1174 21 of of IN 40404 1174 22 New New NNP 40404 1174 23 Hampshire Hampshire NNP 40404 1174 24 which which WDT 40404 1174 25 overlooks overlook VBZ 40404 1174 26 the the DT 40404 1174 27 now now RB 40404 1174 28 uplifted uplifted JJ 40404 1174 29 peneplain peneplain NN 40404 1174 30 of of IN 40404 1174 31 southern southern JJ 40404 1174 32 New New NNP 40404 1174 33 England England NNP 40404 1174 34 . . . 40404 1175 1 [ [ -LRB- 40404 1175 2 1 1 LS 40404 1175 3 ] ] -RRB- 40404 1175 4 The the DT 40404 1175 5 term term NN 40404 1175 6 " " `` 40404 1175 7 baselevel baselevel NN 40404 1175 8 " " '' 40404 1175 9 is be VBZ 40404 1175 10 also also RB 40404 1175 11 used use VBN 40404 1175 12 to to TO 40404 1175 13 designate designate VB 40404 1175 14 the the DT 40404 1175 15 close close JJ 40404 1175 16 approximation approximation NN 40404 1175 17 to to IN 40404 1175 18 sea sea NN 40404 1175 19 level level NN 40404 1175 20 to to IN 40404 1175 21 which which WDT 40404 1175 22 streams stream NNS 40404 1175 23 are be VBP 40404 1175 24 able able JJ 40404 1175 25 to to TO 40404 1175 26 subdue subdue VB 40404 1175 27 the the DT 40404 1175 28 land land NN 40404 1175 29 . . . 40404 1176 1 In in IN 40404 1176 2 its -PRON- PRP$ 40404 1176 3 old old JJ 40404 1176 4 age age NN 40404 1176 5 a a DT 40404 1176 6 region region NN 40404 1176 7 becomes become VBZ 40404 1176 8 mantled mantle VBN 40404 1176 9 with with IN 40404 1176 10 thick thick JJ 40404 1176 11 sheets sheet NNS 40404 1176 12 of of IN 40404 1176 13 fine fine JJ 40404 1176 14 and and CC 40404 1176 15 weathered weather VBD 40404 1176 16 waste waste NN 40404 1176 17 , , , 40404 1176 18 slowly slowly RB 40404 1176 19 moving move VBG 40404 1176 20 over over IN 40404 1176 21 the the DT 40404 1176 22 faint faint JJ 40404 1176 23 slopes slope NNS 40404 1176 24 toward toward IN 40404 1176 25 the the DT 40404 1176 26 water water NN 40404 1176 27 ways way NNS 40404 1176 28 and and CC 40404 1176 29 unbroken unbroken VBN 40404 1176 30 by by IN 40404 1176 31 ledges ledge NNS 40404 1176 32 of of IN 40404 1176 33 bare bare JJ 40404 1176 34 rock rock NN 40404 1176 35 . . . 40404 1177 1 In in IN 40404 1177 2 other other JJ 40404 1177 3 words word NNS 40404 1177 4 , , , 40404 1177 5 the the DT 40404 1177 6 waste waste NN 40404 1177 7 mantle mantle NN 40404 1177 8 also also RB 40404 1177 9 is be VBZ 40404 1177 10 now now RB 40404 1177 11 graded grade VBN 40404 1177 12 , , , 40404 1177 13 and and CC 40404 1177 14 as as IN 40404 1177 15 waterfalls waterfall NNS 40404 1177 16 have have VBP 40404 1177 17 been be VBN 40404 1177 18 effaced efface VBN 40404 1177 19 in in IN 40404 1177 20 the the DT 40404 1177 21 river river NN 40404 1177 22 beds bed NNS 40404 1177 23 , , , 40404 1177 24 so so CC 40404 1177 25 now now RB 40404 1177 26 any any DT 40404 1177 27 ledges ledge NNS 40404 1177 28 in in IN 40404 1177 29 the the DT 40404 1177 30 wide wide JJ 40404 1177 31 streams stream NNS 40404 1177 32 of of IN 40404 1177 33 waste waste NN 40404 1177 34 are be VBP 40404 1177 35 worn wear VBN 40404 1177 36 away away RP 40404 1177 37 and and CC 40404 1177 38 covered cover VBN 40404 1177 39 beneath beneath IN 40404 1177 40 smooth smooth JJ 40404 1177 41 slopes slope NNS 40404 1177 42 of of IN 40404 1177 43 fine fine JJ 40404 1177 44 soil soil NN 40404 1177 45 . . . 40404 1178 1 Ground ground NN 40404 1178 2 water water NN 40404 1178 3 stands stand VBZ 40404 1178 4 high high JJ 40404 1178 5 and and CC 40404 1178 6 may may MD 40404 1178 7 exude exude VB 40404 1178 8 in in IN 40404 1178 9 areas area NNS 40404 1178 10 of of IN 40404 1178 11 swamp swamp NN 40404 1178 12 . . . 40404 1179 1 In in IN 40404 1179 2 youth youth NN 40404 1179 3 the the DT 40404 1179 4 land land NN 40404 1179 5 mass mass NNP 40404 1179 6 was be VBD 40404 1179 7 roughhewn roughhewn VBN 40404 1179 8 and and CC 40404 1179 9 cut cut VBN 40404 1179 10 deep deep RB 40404 1179 11 by by IN 40404 1179 12 stream stream NN 40404 1179 13 erosion erosion NN 40404 1179 14 . . . 40404 1180 1 In in IN 40404 1180 2 old old JJ 40404 1180 3 age age NN 40404 1180 4 the the DT 40404 1180 5 faint faint JJ 40404 1180 6 reliefs relief NNS 40404 1180 7 of of IN 40404 1180 8 the the DT 40404 1180 9 land land NN 40404 1180 10 dissolve dissolve VBP 40404 1180 11 away away RB 40404 1180 12 , , , 40404 1180 13 chiefly chiefly RB 40404 1180 14 under under IN 40404 1180 15 the the DT 40404 1180 16 action action NN 40404 1180 17 of of IN 40404 1180 18 the the DT 40404 1180 19 weather weather NN 40404 1180 20 , , , 40404 1180 21 beneath beneath IN 40404 1180 22 their -PRON- PRP$ 40404 1180 23 cloak cloak NN 40404 1180 24 of of IN 40404 1180 25 waste waste NN 40404 1180 26 . . . 40404 1181 1 [ [ -LRB- 40404 1181 2 Illustration illustration NN 40404 1181 3 : : : 40404 1181 4 Fig Fig NNP 40404 1181 5 . . . 40404 1182 1 62 62 CD 40404 1182 2 . . . 40404 1183 1 Peneplain peneplain NN 40404 1183 2 surrounded surround VBN 40404 1183 3 by by IN 40404 1183 4 Monadnocks Monadnocks NNP 40404 1183 5 , , , 40404 1183 6 Piedmont Piedmont NNP 40404 1183 7 Belt Belt NNP 40404 1183 8 , , , 40404 1183 9 Virginia Virginia NNP 40404 1183 10 From from IN 40404 1183 11 Davis Davis NNP 40404 1183 12 ' ' POS 40404 1183 13 _ _ NNP 40404 1183 14 Elementary Elementary NNP 40404 1183 15 Physical Physical NNP 40404 1183 16 Geography Geography NNP 40404 1183 17 ] ] -RRB- 40404 1183 18 = = NFP 40404 1183 19 The the DT 40404 1183 20 cycle cycle NN 40404 1183 21 of of IN 40404 1183 22 erosion.= erosion.= CD 40404 1183 23 The the DT 40404 1183 24 successive successive JJ 40404 1183 25 stages stage NNS 40404 1183 26 through through IN 40404 1183 27 which which WDT 40404 1183 28 a a DT 40404 1183 29 land land NN 40404 1183 30 mass mass NN 40404 1183 31 passes pass VBZ 40404 1183 32 while while IN 40404 1183 33 it -PRON- PRP 40404 1183 34 is be VBZ 40404 1183 35 being be VBG 40404 1183 36 leveled level VBN 40404 1183 37 to to IN 40404 1183 38 the the DT 40404 1183 39 sea sea NN 40404 1183 40 constitute constitute VB 40404 1183 41 together together RB 40404 1183 42 a a DT 40404 1183 43 cycle cycle NN 40404 1183 44 of of IN 40404 1183 45 erosion erosion NN 40404 1183 46 . . . 40404 1184 1 Each each DT 40404 1184 2 stage stage NN 40404 1184 3 of of IN 40404 1184 4 the the DT 40404 1184 5 cycle cycle NN 40404 1184 6 from from IN 40404 1184 7 infancy infancy NN 40404 1184 8 to to IN 40404 1184 9 old old JJ 40404 1184 10 age age NN 40404 1184 11 leaves leave NNS 40404 1184 12 , , , 40404 1184 13 as as IN 40404 1184 14 we -PRON- PRP 40404 1184 15 have have VBP 40404 1184 16 seen see VBN 40404 1184 17 , , , 40404 1184 18 its -PRON- PRP$ 40404 1184 19 characteristic characteristic JJ 40404 1184 20 records record NNS 40404 1184 21 in in IN 40404 1184 22 the the DT 40404 1184 23 forms form NNS 40404 1184 24 sculptured sculpture VBD 40404 1184 25 on on IN 40404 1184 26 the the DT 40404 1184 27 land land NN 40404 1184 28 , , , 40404 1184 29 such such JJ 40404 1184 30 as as IN 40404 1184 31 the the DT 40404 1184 32 shapes shape NNS 40404 1184 33 of of IN 40404 1184 34 valleys valley NNS 40404 1184 35 and and CC 40404 1184 36 the the DT 40404 1184 37 contours contour NNS 40404 1184 38 of of IN 40404 1184 39 hills hill NNS 40404 1184 40 and and CC 40404 1184 41 plains plain NNS 40404 1184 42 . . . 40404 1185 1 The the DT 40404 1185 2 geologist geologist NN 40404 1185 3 is be VBZ 40404 1185 4 thus thus RB 40404 1185 5 able able JJ 40404 1185 6 to to TO 40404 1185 7 determine determine VB 40404 1185 8 by by IN 40404 1185 9 the the DT 40404 1185 10 land land NN 40404 1185 11 forms form NNS 40404 1185 12 of of IN 40404 1185 13 any any DT 40404 1185 14 region region NN 40404 1185 15 the the DT 40404 1185 16 stage stage NN 40404 1185 17 in in IN 40404 1185 18 the the DT 40404 1185 19 erosion erosion NN 40404 1185 20 cycle cycle NN 40404 1185 21 to to TO 40404 1185 22 which which WDT 40404 1185 23 it -PRON- PRP 40404 1185 24 now now RB 40404 1185 25 belongs belong VBZ 40404 1185 26 , , , 40404 1185 27 and and CC 40404 1185 28 knowing know VBG 40404 1185 29 what what WP 40404 1185 30 are be VBP 40404 1185 31 the the DT 40404 1185 32 earlier early JJR 40404 1185 33 stages stage NNS 40404 1185 34 of of IN 40404 1185 35 the the DT 40404 1185 36 cycle cycle NN 40404 1185 37 , , , 40404 1185 38 to to TO 40404 1185 39 read read VB 40404 1185 40 something something NN 40404 1185 41 of of IN 40404 1185 42 the the DT 40404 1185 43 geological geological JJ 40404 1185 44 history history NN 40404 1185 45 of of IN 40404 1185 46 the the DT 40404 1185 47 region region NN 40404 1185 48 . . . 40404 1186 1 = = NFP 40404 1186 2 Interrupted Interrupted NNP 40404 1186 3 cycles.= cycles.= NNP 40404 1186 4 So so RB 40404 1186 5 long long RB 40404 1186 6 a a DT 40404 1186 7 time time NN 40404 1186 8 is be VBZ 40404 1186 9 needed need VBN 40404 1186 10 to to TO 40404 1186 11 reduce reduce VB 40404 1186 12 a a DT 40404 1186 13 land land NN 40404 1186 14 mass mass NN 40404 1186 15 to to IN 40404 1186 16 baselevel baselevel VB 40404 1186 17 that that IN 40404 1186 18 the the DT 40404 1186 19 process process NN 40404 1186 20 is be VBZ 40404 1186 21 seldom seldom RB 40404 1186 22 if if IN 40404 1186 23 ever ever RB 40404 1186 24 completed complete VBN 40404 1186 25 during during IN 40404 1186 26 a a DT 40404 1186 27 single single JJ 40404 1186 28 uninterrupted uninterrupted JJ 40404 1186 29 cycle cycle NN 40404 1186 30 of of IN 40404 1186 31 erosion erosion NN 40404 1186 32 . . . 40404 1187 1 Of of IN 40404 1187 2 all all PDT 40404 1187 3 the the DT 40404 1187 4 various various JJ 40404 1187 5 interruptions interruption NNS 40404 1187 6 which which WDT 40404 1187 7 may may MD 40404 1187 8 occur occur VB 40404 1187 9 the the DT 40404 1187 10 most most RBS 40404 1187 11 important important JJ 40404 1187 12 are be VBP 40404 1187 13 gradual gradual JJ 40404 1187 14 movements movement NNS 40404 1187 15 of of IN 40404 1187 16 the the DT 40404 1187 17 earth earth NN 40404 1187 18 's 's POS 40404 1187 19 crust crust NN 40404 1187 20 , , , 40404 1187 21 by by IN 40404 1187 22 which which WDT 40404 1187 23 a a DT 40404 1187 24 region region NN 40404 1187 25 is be VBZ 40404 1187 26 either either CC 40404 1187 27 depressed depressed JJ 40404 1187 28 or or CC 40404 1187 29 elevated elevated JJ 40404 1187 30 relative relative JJ 40404 1187 31 to to IN 40404 1187 32 sea sea NN 40404 1187 33 level level NN 40404 1187 34 . . . 40404 1188 1 [ [ -LRB- 40404 1188 2 Illustration illustration NN 40404 1188 3 : : : 40404 1188 4 Fig Fig NNP 40404 1188 5 . . . 40404 1189 1 63 63 CD 40404 1189 2 . . . 40404 1190 1 Young young JJ 40404 1190 2 Inner Inner NNP 40404 1190 3 Gorge Gorge NNP 40404 1190 4 in in IN 40404 1190 5 Wide Wide NNP 40404 1190 6 Older old JJR 40404 1190 7 Valley Valley NNP 40404 1190 8 , , , 40404 1190 9 Alaska Alaska NNP 40404 1190 10 ] ] -RRB- 40404 1190 11 The the DT 40404 1190 12 _ _ NNP 40404 1190 13 depression depression NN 40404 1190 14 _ _ NNP 40404 1190 15 of of IN 40404 1190 16 a a DT 40404 1190 17 region region NN 40404 1190 18 hastens hasten VBZ 40404 1190 19 its -PRON- PRP$ 40404 1190 20 old old JJ 40404 1190 21 age age NN 40404 1190 22 by by IN 40404 1190 23 decreasing decrease VBG 40404 1190 24 the the DT 40404 1190 25 gradient gradient NN 40404 1190 26 of of IN 40404 1190 27 streams stream NNS 40404 1190 28 , , , 40404 1190 29 by by IN 40404 1190 30 destroying destroy VBG 40404 1190 31 their -PRON- PRP$ 40404 1190 32 power power NN 40404 1190 33 to to TO 40404 1190 34 excavate excavate VB 40404 1190 35 their -PRON- PRP$ 40404 1190 36 beds bed NNS 40404 1190 37 and and CC 40404 1190 38 carry carry VB 40404 1190 39 their -PRON- PRP$ 40404 1190 40 loads load NNS 40404 1190 41 to to IN 40404 1190 42 a a DT 40404 1190 43 degree degree NN 40404 1190 44 corresponding correspond VBG 40404 1190 45 to to IN 40404 1190 46 the the DT 40404 1190 47 amount amount NN 40404 1190 48 of of IN 40404 1190 49 the the DT 40404 1190 50 depression depression NN 40404 1190 51 , , , 40404 1190 52 and and CC 40404 1190 53 by by IN 40404 1190 54 lessening lessen VBG 40404 1190 55 the the DT 40404 1190 56 amount amount NN 40404 1190 57 of of IN 40404 1190 58 work work NN 40404 1190 59 they -PRON- PRP 40404 1190 60 have have VBP 40404 1190 61 to to TO 40404 1190 62 do do VB 40404 1190 63 . . . 40404 1191 1 The the DT 40404 1191 2 slackened slackened JJ 40404 1191 3 river river NN 40404 1191 4 currents current NNS 40404 1191 5 deposit deposit VB 40404 1191 6 their -PRON- PRP$ 40404 1191 7 waste waste NN 40404 1191 8 in in IN 40404 1191 9 Hood Hood NNP 40404 1191 10 plains plain NNS 40404 1191 11 which which WDT 40404 1191 12 increase increase VBP 40404 1191 13 in in IN 40404 1191 14 height height NN 40404 1191 15 as as IN 40404 1191 16 the the DT 40404 1191 17 subsidence subsidence NN 40404 1191 18 continues continue VBZ 40404 1191 19 . . . 40404 1192 1 The the DT 40404 1192 2 lower low JJR 40404 1192 3 courses course NNS 40404 1192 4 of of IN 40404 1192 5 the the DT 40404 1192 6 rivers river NNS 40404 1192 7 are be VBP 40404 1192 8 invaded invade VBN 40404 1192 9 by by IN 40404 1192 10 the the DT 40404 1192 11 sea sea NN 40404 1192 12 and and CC 40404 1192 13 become become VB 40404 1192 14 estuaries estuary NNS 40404 1192 15 , , , 40404 1192 16 while while IN 40404 1192 17 the the DT 40404 1192 18 lower low JJR 40404 1192 19 tributaries tributary NNS 40404 1192 20 are be VBP 40404 1192 21 cut cut VBN 40404 1192 22 off off RP 40404 1192 23 from from IN 40404 1192 24 the the DT 40404 1192 25 trunk trunk NN 40404 1192 26 stream stream NN 40404 1192 27 . . . 40404 1193 1 _ _ NNP 40404 1193 2 Elevation Elevation NNP 40404 1193 3 _ _ NNP 40404 1193 4 , , , 40404 1193 5 on on IN 40404 1193 6 the the DT 40404 1193 7 other other JJ 40404 1193 8 hand hand NN 40404 1193 9 , , , 40404 1193 10 increases increase VBZ 40404 1193 11 the the DT 40404 1193 12 activity activity NN 40404 1193 13 of of IN 40404 1193 14 all all DT 40404 1193 15 agencies agency NNS 40404 1193 16 of of IN 40404 1193 17 weathering weathering NN 40404 1193 18 , , , 40404 1193 19 erosion erosion NN 40404 1193 20 , , , 40404 1193 21 and and CC 40404 1193 22 transportation transportation NN 40404 1193 23 , , , 40404 1193 24 restores restore VBZ 40404 1193 25 the the DT 40404 1193 26 region region NN 40404 1193 27 to to IN 40404 1193 28 its -PRON- PRP$ 40404 1193 29 youth youth NN 40404 1193 30 , , , 40404 1193 31 and and CC 40404 1193 32 inaugurates inaugurate VBZ 40404 1193 33 a a DT 40404 1193 34 new new JJ 40404 1193 35 cycle cycle NN 40404 1193 36 of of IN 40404 1193 37 erosion erosion NN 40404 1193 38 . . . 40404 1194 1 Streams stream NNS 40404 1194 2 are be VBP 40404 1194 3 given give VBN 40404 1194 4 a a DT 40404 1194 5 steeper steeper NN 40404 1194 6 gradient gradient NN 40404 1194 7 , , , 40404 1194 8 greater great JJR 40404 1194 9 velocity velocity NN 40404 1194 10 , , , 40404 1194 11 and and CC 40404 1194 12 increased increase VBD 40404 1194 13 energy energy NN 40404 1194 14 to to TO 40404 1194 15 carry carry VB 40404 1194 16 their -PRON- PRP$ 40404 1194 17 loads load NNS 40404 1194 18 and and CC 40404 1194 19 wear wear VB 40404 1194 20 their -PRON- PRP$ 40404 1194 21 beds bed NNS 40404 1194 22 . . . 40404 1195 1 They -PRON- PRP 40404 1195 2 cut cut VBD 40404 1195 3 through through IN 40404 1195 4 the the DT 40404 1195 5 alluvium alluvium NN 40404 1195 6 of of IN 40404 1195 7 their -PRON- PRP$ 40404 1195 8 flood flood NN 40404 1195 9 plains plain NNS 40404 1195 10 , , , 40404 1195 11 leaving leave VBG 40404 1195 12 it -PRON- PRP 40404 1195 13 on on IN 40404 1195 14 either either DT 40404 1195 15 bank bank NN 40404 1195 16 as as IN 40404 1195 17 successive successive JJ 40404 1195 18 terraces terrace NNS 40404 1195 19 , , , 40404 1195 20 and and CC 40404 1195 21 intrench intrench VB 40404 1195 22 themselves -PRON- PRP 40404 1195 23 in in IN 40404 1195 24 the the DT 40404 1195 25 underlying underlying JJ 40404 1195 26 rock rock NN 40404 1195 27 . . . 40404 1196 1 In in IN 40404 1196 2 their -PRON- PRP$ 40404 1196 3 older old JJR 40404 1196 4 and and CC 40404 1196 5 wider wide JJR 40404 1196 6 valleys valley NNS 40404 1196 7 they -PRON- PRP 40404 1196 8 cut cut VBP 40404 1196 9 narrow narrow JJ 40404 1196 10 , , , 40404 1196 11 steep steep JJ 40404 1196 12 - - HYPH 40404 1196 13 walled walled JJ 40404 1196 14 inner inner JJ 40404 1196 15 gorges gorge NNS 40404 1196 16 , , , 40404 1196 17 in in IN 40404 1196 18 which which WDT 40404 1196 19 they -PRON- PRP 40404 1196 20 flow flow VBP 40404 1196 21 swiftly swiftly RB 40404 1196 22 over over IN 40404 1196 23 rocky rocky JJ 40404 1196 24 floors floor NNS 40404 1196 25 , , , 40404 1196 26 broken break VBN 40404 1196 27 here here RB 40404 1196 28 and and CC 40404 1196 29 there there RB 40404 1196 30 by by IN 40404 1196 31 falls fall NNS 40404 1196 32 and and CC 40404 1196 33 rapids rapids NNPS 40404 1196 34 where where WRB 40404 1196 35 a a DT 40404 1196 36 harder hard JJR 40404 1196 37 layer layer NN 40404 1196 38 of of IN 40404 1196 39 rock rock NN 40404 1196 40 has have VBZ 40404 1196 41 been be VBN 40404 1196 42 discovered discover VBN 40404 1196 43 . . . 40404 1197 1 Winding winding NN 40404 1197 2 streams stream NNS 40404 1197 3 on on IN 40404 1197 4 plains plain NNS 40404 1197 5 may may MD 40404 1197 6 thus thus RB 40404 1197 7 incise incise VB 40404 1197 8 their -PRON- PRP$ 40404 1197 9 meanders meander NNS 40404 1197 10 in in IN 40404 1197 11 solid solid JJ 40404 1197 12 rock rock NN 40404 1197 13 as as IN 40404 1197 14 the the DT 40404 1197 15 plains plain NNS 40404 1197 16 are be VBP 40404 1197 17 gradually gradually RB 40404 1197 18 uplifted uplifted JJ 40404 1197 19 . . . 40404 1198 1 Streams stream NNS 40404 1198 2 which which WDT 40404 1198 3 are be VBP 40404 1198 4 thus thus RB 40404 1198 5 restored restore VBN 40404 1198 6 to to IN 40404 1198 7 their -PRON- PRP$ 40404 1198 8 youth youth NN 40404 1198 9 are be VBP 40404 1198 10 said say VBN 40404 1198 11 to to TO 40404 1198 12 be be VB 40404 1198 13 _ _ NNP 40404 1198 14 revived revive VBN 40404 1198 15 _ _ NNP 40404 1198 16 . . . 40404 1199 1 [ [ -LRB- 40404 1199 2 Illustration illustration NN 40404 1199 3 : : : 40404 1199 4 Fig Fig NNP 40404 1199 5 . . . 40404 1200 1 64 64 CD 40404 1200 2 . . . 40404 1201 1 Incised Incised NNP 40404 1201 2 Meanders Meanders NNPS 40404 1201 3 of of IN 40404 1201 4 Oneota Oneota NNP 40404 1201 5 River River NNP 40404 1201 6 , , , 40404 1201 7 Iowa Iowa NNP 40404 1201 8 ] ] -RRB- 40404 1201 9 As as IN 40404 1201 10 streams stream NNS 40404 1201 11 cut cut VBP 40404 1201 12 deeper deeply RBR 40404 1201 13 and and CC 40404 1201 14 the the DT 40404 1201 15 valley valley NNP 40404 1201 16 slopes slope NNS 40404 1201 17 are be VBP 40404 1201 18 steepened steepen VBN 40404 1201 19 , , , 40404 1201 20 the the DT 40404 1201 21 mantle mantle NN 40404 1201 22 of of IN 40404 1201 23 waste waste NN 40404 1201 24 of of IN 40404 1201 25 the the DT 40404 1201 26 region region NN 40404 1201 27 undergoing undergo VBG 40404 1201 28 elevation elevation NN 40404 1201 29 is be VBZ 40404 1201 30 set set VBN 40404 1201 31 in in IN 40404 1201 32 more more JJR 40404 1201 33 rapid rapid JJ 40404 1201 34 movement movement NN 40404 1201 35 . . . 40404 1202 1 It -PRON- PRP 40404 1202 2 is be VBZ 40404 1202 3 now now RB 40404 1202 4 removed remove VBN 40404 1202 5 particle particle NN 40404 1202 6 by by IN 40404 1202 7 particle particle NN 40404 1202 8 faster fast RBR 40404 1202 9 than than IN 40404 1202 10 it -PRON- PRP 40404 1202 11 forms form VBZ 40404 1202 12 . . . 40404 1203 1 As as IN 40404 1203 2 the the DT 40404 1203 3 waste waste NN 40404 1203 4 mantle mantle NN 40404 1203 5 thins thin NNS 40404 1203 6 , , , 40404 1203 7 weathering weather VBG 40404 1203 8 attacks attack NNS 40404 1203 9 the the DT 40404 1203 10 rocks rock NNS 40404 1203 11 of of IN 40404 1203 12 the the DT 40404 1203 13 region region NN 40404 1203 14 more more RBR 40404 1203 15 energetically energetically RB 40404 1203 16 until until IN 40404 1203 17 an an DT 40404 1203 18 equilibrium equilibrium NN 40404 1203 19 is be VBZ 40404 1203 20 reached reach VBN 40404 1203 21 again again RB 40404 1203 22 ; ; : 40404 1203 23 the the DT 40404 1203 24 rocks rock NNS 40404 1203 25 waste waste VBP 40404 1203 26 rapidly rapidly RB 40404 1203 27 and and CC 40404 1203 28 their -PRON- PRP$ 40404 1203 29 waste waste NN 40404 1203 30 is be VBZ 40404 1203 31 as as RB 40404 1203 32 rapidly rapidly RB 40404 1203 33 removed remove VBN 40404 1203 34 . . . 40404 1204 1 = = NFP 40404 1204 2 Dissected dissect VBN 40404 1204 3 peneplains.= peneplains.= CD 40404 1204 4 When when WRB 40404 1204 5 a a DT 40404 1204 6 rise rise NN 40404 1204 7 of of IN 40404 1204 8 the the DT 40404 1204 9 land land NN 40404 1204 10 brings bring VBZ 40404 1204 11 one one CD 40404 1204 12 cycle cycle NN 40404 1204 13 to to IN 40404 1204 14 an an DT 40404 1204 15 end end NN 40404 1204 16 and and CC 40404 1204 17 begins begin VBZ 40404 1204 18 another another DT 40404 1204 19 , , , 40404 1204 20 the the DT 40404 1204 21 characteristic characteristic JJ 40404 1204 22 land land NN 40404 1204 23 forms form NNS 40404 1204 24 of of IN 40404 1204 25 each each DT 40404 1204 26 cycle cycle NN 40404 1204 27 are be VBP 40404 1204 28 found find VBN 40404 1204 29 together together RB 40404 1204 30 and and CC 40404 1204 31 the the DT 40404 1204 32 topography topography NN 40404 1204 33 of of IN 40404 1204 34 the the DT 40404 1204 35 region region NN 40404 1204 36 is be VBZ 40404 1204 37 composite composite JJ 40404 1204 38 until until IN 40404 1204 39 the the DT 40404 1204 40 second second JJ 40404 1204 41 cycle cycle NN 40404 1204 42 is be VBZ 40404 1204 43 so so RB 40404 1204 44 far far RB 40404 1204 45 advanced advanced JJ 40404 1204 46 that that IN 40404 1204 47 the the DT 40404 1204 48 land land NN 40404 1204 49 forms form NNS 40404 1204 50 of of IN 40404 1204 51 the the DT 40404 1204 52 first first JJ 40404 1204 53 cycle cycle NN 40404 1204 54 are be VBP 40404 1204 55 entirely entirely RB 40404 1204 56 destroyed destroy VBN 40404 1204 57 . . . 40404 1205 1 The the DT 40404 1205 2 contrast contrast NN 40404 1205 3 between between IN 40404 1205 4 the the DT 40404 1205 5 land land NN 40404 1205 6 surfaces surface NNS 40404 1205 7 of of IN 40404 1205 8 the the DT 40404 1205 9 later later JJ 40404 1205 10 and and CC 40404 1205 11 the the DT 40404 1205 12 earlier early JJR 40404 1205 13 cycles cycle NNS 40404 1205 14 is be VBZ 40404 1205 15 most most RBS 40404 1205 16 striking striking JJ 40404 1205 17 when when WRB 40404 1205 18 the the DT 40404 1205 19 earlier early RBR 40404 1205 20 had have VBD 40404 1205 21 advanced advance VBN 40404 1205 22 to to IN 40404 1205 23 age age NN 40404 1205 24 and and CC 40404 1205 25 the the DT 40404 1205 26 later later JJ 40404 1205 27 is be VBZ 40404 1205 28 still still RB 40404 1205 29 in in IN 40404 1205 30 youth youth NN 40404 1205 31 . . . 40404 1206 1 Thus thus RB 40404 1206 2 many many JJ 40404 1206 3 peneplains peneplain NNS 40404 1206 4 which which WDT 40404 1206 5 have have VBP 40404 1206 6 been be VBN 40404 1206 7 elevated elevate VBN 40404 1206 8 and and CC 40404 1206 9 dissected dissect VBN 40404 1206 10 have have VBP 40404 1206 11 been be VBN 40404 1206 12 recognized recognize VBN 40404 1206 13 by by IN 40404 1206 14 the the DT 40404 1206 15 remnants remnant NNS 40404 1206 16 of of IN 40404 1206 17 their -PRON- PRP$ 40404 1206 18 ancient ancient JJ 40404 1206 19 erosion erosion NN 40404 1206 20 surfaces surface NNS 40404 1206 21 , , , 40404 1206 22 and and CC 40404 1206 23 the the DT 40404 1206 24 length length NN 40404 1206 25 of of IN 40404 1206 26 time time NN 40404 1206 27 which which WDT 40404 1206 28 has have VBZ 40404 1206 29 elapsed elapse VBN 40404 1206 30 since since IN 40404 1206 31 their -PRON- PRP$ 40404 1206 32 uplift uplift NN 40404 1206 33 has have VBZ 40404 1206 34 been be VBN 40404 1206 35 measured measure VBN 40404 1206 36 by by IN 40404 1206 37 the the DT 40404 1206 38 stage stage NN 40404 1206 39 to to TO 40404 1206 40 which which WDT 40404 1206 41 the the DT 40404 1206 42 new new JJ 40404 1206 43 cycle cycle NN 40404 1206 44 has have VBZ 40404 1206 45 advanced advance VBN 40404 1206 46 . . . 40404 1207 1 [ [ -LRB- 40404 1207 2 Illustration illustration NN 40404 1207 3 : : : 40404 1207 4 Fig Fig NNP 40404 1207 5 . . . 40404 1208 1 65 65 CD 40404 1208 2 . . . 40404 1209 1 Describe describe VB 40404 1209 2 the the DT 40404 1209 3 valley valley NN 40404 1209 4 of of IN 40404 1209 5 stream stream NN 40404 1209 6 _ _ NNP 40404 1209 7 a a DT 40404 1209 8 _ _ NNP 40404 1209 9 . . . 40404 1210 1 Is be VBZ 40404 1210 2 it -PRON- PRP 40404 1210 3 young young JJ 40404 1210 4 or or CC 40404 1210 5 old old JJ 40404 1210 6 ? ? . 40404 1211 1 How how WRB 40404 1211 2 does do VBZ 40404 1211 3 the the DT 40404 1211 4 valley valley NN 40404 1211 5 of of IN 40404 1211 6 _ _ NNP 40404 1211 7 b b NNP 40404 1211 8 _ _ NNP 40404 1211 9 differ differ VBP 40404 1211 10 from from IN 40404 1211 11 that that DT 40404 1211 12 of of IN 40404 1211 13 _ _ NNP 40404 1211 14 a a DT 40404 1211 15 _ _ NNP 40404 1211 16 ? ? . 40404 1212 1 Compare compare VB 40404 1212 2 as as IN 40404 1212 3 to to TO 40404 1212 4 form form VB 40404 1212 5 and and CC 40404 1212 6 age age VB 40404 1212 7 the the DT 40404 1212 8 inner inner JJ 40404 1212 9 valley valley NN 40404 1212 10 of of IN 40404 1212 11 _ _ NNP 40404 1212 12 b b NNP 40404 1212 13 _ _ NNP 40404 1212 14 with with IN 40404 1212 15 the the DT 40404 1212 16 outer outer JJ 40404 1212 17 valley valley NN 40404 1212 18 and and CC 40404 1212 19 with with IN 40404 1212 20 the the DT 40404 1212 21 valley valley NN 40404 1212 22 of of IN 40404 1212 23 _ _ NNP 40404 1212 24 a a DT 40404 1212 25 _ _ NNP 40404 1212 26 . . . 40404 1213 1 Account account NN 40404 1213 2 for for IN 40404 1213 3 the the DT 40404 1213 4 inner inner JJ 40404 1213 5 valley valley NN 40404 1213 6 . . . 40404 1214 1 Why why WRB 40404 1214 2 does do VBZ 40404 1214 3 it -PRON- PRP 40404 1214 4 not not RB 40404 1214 5 extend extend VB 40404 1214 6 to to IN 40404 1214 7 the the DT 40404 1214 8 upper upper JJ 40404 1214 9 portion portion NN 40404 1214 10 of of IN 40404 1214 11 the the DT 40404 1214 12 course course NN 40404 1214 13 of of IN 40404 1214 14 _ _ NNP 40404 1214 15 b b NNP 40404 1214 16 _ _ NNP 40404 1214 17 ? ? . 40404 1215 1 Will Will MD 40404 1215 2 it -PRON- PRP 40404 1215 3 ever ever RB 40404 1215 4 do do VB 40404 1215 5 so so RB 40404 1215 6 ? ? . 40404 1216 1 Draw draw VB 40404 1216 2 longitudinal longitudinal JJ 40404 1216 3 profile profile NN 40404 1216 4 of of IN 40404 1216 5 _ _ NNP 40404 1216 6 b b NNP 40404 1216 7 _ _ NNP 40404 1216 8 , , , 40404 1216 9 showing show VBG 40404 1216 10 the the DT 40404 1216 11 different different JJ 40404 1216 12 gradient gradient NN 40404 1216 13 of of IN 40404 1216 14 upper upper JJ 40404 1216 15 and and CC 40404 1216 16 lower low JJR 40404 1216 17 portions portion NNS 40404 1216 18 of of IN 40404 1216 19 its -PRON- PRP$ 40404 1216 20 course course NN 40404 1216 21 not not RB 40404 1216 22 here here RB 40404 1216 23 seen see VBN 40404 1216 24 . . . 40404 1217 1 As as IN 40404 1217 2 the the DT 40404 1217 3 inner inner JJ 40404 1217 4 valley valley NN 40404 1217 5 of of IN 40404 1217 6 tributary tributary NNP 40404 1217 7 _ _ NNP 40404 1217 8 c c NNP 40404 1217 9 _ _ NNP 40404 1217 10 extends extend VBZ 40404 1217 11 headward headward NNP 40404 1217 12 it -PRON- PRP 40404 1217 13 may may MD 40404 1217 14 invade invade VB 40404 1217 15 the the DT 40404 1217 16 valley valley NN 40404 1217 17 of of IN 40404 1217 18 _ _ NNP 40404 1217 19 a a DT 40404 1217 20 _ _ NNP 40404 1217 21 before before IN 40404 1217 22 the the DT 40404 1217 23 inner inner JJ 40404 1217 24 valley valley NN 40404 1217 25 of of IN 40404 1217 26 _ _ NNP 40404 1217 27 a a DT 40404 1217 28 _ _ NNP 40404 1217 29 has have VBZ 40404 1217 30 worked work VBN 40404 1217 31 upstream upstream RB 40404 1217 32 to to IN 40404 1217 33 the the DT 40404 1217 34 area area NN 40404 1217 35 seen see VBN 40404 1217 36 in in IN 40404 1217 37 the the DT 40404 1217 38 diagram diagram NN 40404 1217 39 . . . 40404 1218 1 With with IN 40404 1218 2 what what WDT 40404 1218 3 results result NNS 40404 1218 4 ? ? . 40404 1218 5 ] ] -RRB- 40404 1219 1 = = NFP 40404 1219 2 The the DT 40404 1219 3 Piedmont Piedmont NNP 40404 1219 4 Belt.= Belt.= NNP 40404 1219 5 As as IN 40404 1219 6 an an DT 40404 1219 7 example example NN 40404 1219 8 of of IN 40404 1219 9 an an DT 40404 1219 10 ancient ancient JJ 40404 1219 11 peneplain peneplain NN 40404 1219 12 uplifted uplift VBN 40404 1219 13 and and CC 40404 1219 14 dissected dissect VBN 40404 1219 15 we -PRON- PRP 40404 1219 16 may may MD 40404 1219 17 cite cite VB 40404 1219 18 the the DT 40404 1219 19 Piedmont Piedmont NNP 40404 1219 20 Belt Belt NNP 40404 1219 21 , , , 40404 1219 22 a a DT 40404 1219 23 broad broad JJ 40404 1219 24 upland upland NN 40404 1219 25 lying lie VBG 40404 1219 26 between between IN 40404 1219 27 the the DT 40404 1219 28 Appalachian Appalachian NNP 40404 1219 29 Mountains Mountains NNPS 40404 1219 30 and and CC 40404 1219 31 the the DT 40404 1219 32 Atlantic Atlantic NNP 40404 1219 33 coastal coastal JJ 40404 1219 34 plain plain NN 40404 1219 35 . . . 40404 1220 1 The the DT 40404 1220 2 surface surface NN 40404 1220 3 of of IN 40404 1220 4 the the DT 40404 1220 5 Piedmont Piedmont NNP 40404 1220 6 is be VBZ 40404 1220 7 gently gently RB 40404 1220 8 rolling roll VBG 40404 1220 9 . . . 40404 1221 1 The the DT 40404 1221 2 divides divide NNS 40404 1221 3 , , , 40404 1221 4 which which WDT 40404 1221 5 are be VBP 40404 1221 6 often often RB 40404 1221 7 smooth smooth JJ 40404 1221 8 areas area NNS 40404 1221 9 of of IN 40404 1221 10 considerable considerable JJ 40404 1221 11 width width NN 40404 1221 12 , , , 40404 1221 13 rise rise VB 40404 1221 14 to to IN 40404 1221 15 a a DT 40404 1221 16 common common JJ 40404 1221 17 plane plane NN 40404 1221 18 , , , 40404 1221 19 and and CC 40404 1221 20 from from IN 40404 1221 21 them -PRON- PRP 40404 1221 22 one one NN 40404 1221 23 sees see VBZ 40404 1221 24 in in IN 40404 1221 25 every every DT 40404 1221 26 direction direction NN 40404 1221 27 an an DT 40404 1221 28 even even RB 40404 1221 29 sky sky NN 40404 1221 30 line line NN 40404 1221 31 except except IN 40404 1221 32 where where WRB 40404 1221 33 in in IN 40404 1221 34 places place NNS 40404 1221 35 some some DT 40404 1221 36 lone lone NNP 40404 1221 37 hill hill NNP 40404 1221 38 or or CC 40404 1221 39 ridge ridge NNP 40404 1221 40 may may MD 40404 1221 41 lift lift VB 40404 1221 42 itself -PRON- PRP 40404 1221 43 above above IN 40404 1221 44 the the DT 40404 1221 45 general general JJ 40404 1221 46 level level NN 40404 1221 47 ( ( -LRB- 40404 1221 48 Fig fig NN 40404 1221 49 . . . 40404 1222 1 62 62 CD 40404 1222 2 ) ) -RRB- 40404 1222 3 . . . 40404 1223 1 The the DT 40404 1223 2 surface surface NN 40404 1223 3 is be VBZ 40404 1223 4 an an DT 40404 1223 5 ancient ancient JJ 40404 1223 6 one one NN 40404 1223 7 , , , 40404 1223 8 for for IN 40404 1223 9 the the DT 40404 1223 10 mantle mantle NN 40404 1223 11 of of IN 40404 1223 12 residual residual JJ 40404 1223 13 waste waste NN 40404 1223 14 lies lie VBZ 40404 1223 15 deep deep RB 40404 1223 16 upon upon IN 40404 1223 17 it -PRON- PRP 40404 1223 18 , , , 40404 1223 19 soils soil NNS 40404 1223 20 are be VBP 40404 1223 21 reddened redden VBN 40404 1223 22 by by IN 40404 1223 23 long long JJ 40404 1223 24 oxidation oxidation NN 40404 1223 25 , , , 40404 1223 26 and and CC 40404 1223 27 the the DT 40404 1223 28 rocks rock NNS 40404 1223 29 are be VBP 40404 1223 30 rotted rot VBN 40404 1223 31 to to IN 40404 1223 32 a a DT 40404 1223 33 depth depth NN 40404 1223 34 of of IN 40404 1223 35 scores score NNS 40404 1223 36 of of IN 40404 1223 37 feet foot NNS 40404 1223 38 . . . 40404 1224 1 At at IN 40404 1224 2 present present NN 40404 1224 3 , , , 40404 1224 4 however however RB 40404 1224 5 , , , 40404 1224 6 the the DT 40404 1224 7 waste waste NN 40404 1224 8 mantle mantle NN 40404 1224 9 is be VBZ 40404 1224 10 not not RB 40404 1224 11 forming form VBG 40404 1224 12 so so RB 40404 1224 13 rapidly rapidly RB 40404 1224 14 as as IN 40404 1224 15 it -PRON- PRP 40404 1224 16 is be VBZ 40404 1224 17 being be VBG 40404 1224 18 removed remove VBN 40404 1224 19 . . . 40404 1225 1 The the DT 40404 1225 2 streams stream NNS 40404 1225 3 of of IN 40404 1225 4 the the DT 40404 1225 5 upland upland NN 40404 1225 6 are be VBP 40404 1225 7 actively actively RB 40404 1225 8 engaged engage VBN 40404 1225 9 in in IN 40404 1225 10 its -PRON- PRP$ 40404 1225 11 destruction destruction NN 40404 1225 12 . . . 40404 1226 1 They -PRON- PRP 40404 1226 2 flow flow VBP 40404 1226 3 swiftly swiftly RB 40404 1226 4 in in IN 40404 1226 5 narrow narrow JJ 40404 1226 6 , , , 40404 1226 7 rock rock NN 40404 1226 8 - - HYPH 40404 1226 9 walled walled JJ 40404 1226 10 valleys valley NNS 40404 1226 11 over over IN 40404 1226 12 rocky rocky JJ 40404 1226 13 beds bed NNS 40404 1226 14 . . . 40404 1227 1 This this DT 40404 1227 2 contrast contrast NN 40404 1227 3 between between IN 40404 1227 4 the the DT 40404 1227 5 young young JJ 40404 1227 6 streams stream NNS 40404 1227 7 and and CC 40404 1227 8 the the DT 40404 1227 9 aged age VBN 40404 1227 10 surface surface NN 40404 1227 11 which which WDT 40404 1227 12 they -PRON- PRP 40404 1227 13 are be VBP 40404 1227 14 now now RB 40404 1227 15 so so RB 40404 1227 16 vigorously vigorously RB 40404 1227 17 dissecting dissect VBG 40404 1227 18 can can MD 40404 1227 19 only only RB 40404 1227 20 be be VB 40404 1227 21 explained explain VBN 40404 1227 22 by by IN 40404 1227 23 the the DT 40404 1227 24 theory theory NN 40404 1227 25 that that IN 40404 1227 26 the the DT 40404 1227 27 region region NN 40404 1227 28 once once RB 40404 1227 29 stood stand VBD 40404 1227 30 lower low JJR 40404 1227 31 than than IN 40404 1227 32 at at IN 40404 1227 33 present present NN 40404 1227 34 and and CC 40404 1227 35 has have VBZ 40404 1227 36 recently recently RB 40404 1227 37 been be VBN 40404 1227 38 upraised upraise VBN 40404 1227 39 . . . 40404 1228 1 If if IN 40404 1228 2 now now RB 40404 1228 3 we -PRON- PRP 40404 1228 4 imagine imagine VBP 40404 1228 5 the the DT 40404 1228 6 valleys valley NNS 40404 1228 7 refilled refill VBN 40404 1228 8 with with IN 40404 1228 9 the the DT 40404 1228 10 waste waste NN 40404 1228 11 which which WDT 40404 1228 12 the the DT 40404 1228 13 streams stream NNS 40404 1228 14 have have VBP 40404 1228 15 swept sweep VBN 40404 1228 16 away away RB 40404 1228 17 , , , 40404 1228 18 and and CC 40404 1228 19 the the DT 40404 1228 20 upland upland NN 40404 1228 21 lowered lower VBD 40404 1228 22 , , , 40404 1228 23 we -PRON- PRP 40404 1228 24 restore restore VBP 40404 1228 25 the the DT 40404 1228 26 Piedmont Piedmont NNP 40404 1228 27 region region NN 40404 1228 28 to to IN 40404 1228 29 the the DT 40404 1228 30 condition condition NN 40404 1228 31 in in IN 40404 1228 32 which which WDT 40404 1228 33 it -PRON- PRP 40404 1228 34 stood stand VBD 40404 1228 35 before before IN 40404 1228 36 its -PRON- PRP$ 40404 1228 37 uplift uplift NN 40404 1228 38 and and CC 40404 1228 39 dissection,--a dissection,--a NNP 40404 1228 40 gently gently RB 40404 1228 41 rolling roll VBG 40404 1228 42 plain plain JJ 40404 1228 43 , , , 40404 1228 44 surmounted surmount VBN 40404 1228 45 here here RB 40404 1228 46 and and CC 40404 1228 47 there there RB 40404 1228 48 by by IN 40404 1228 49 isolated isolated JJ 40404 1228 50 hills hill NNS 40404 1228 51 and and CC 40404 1228 52 ridges ridge NNS 40404 1228 53 . . . 40404 1229 1 [ [ -LRB- 40404 1229 2 Illustration illustration NN 40404 1229 3 : : : 40404 1229 4 Fig Fig NNP 40404 1229 5 . . . 40404 1230 1 66 66 CD 40404 1230 2 . . . 40404 1231 1 Dissected Dissected NNP 40404 1231 2 Peneplain Peneplain NNP 40404 1231 3 of of IN 40404 1231 4 Southern Southern NNP 40404 1231 5 New New NNP 40404 1231 6 England England NNP 40404 1231 7 ] ] -RRB- 40404 1231 8 The the DT 40404 1231 9 surface surface NN 40404 1231 10 of of IN 40404 1231 11 the the DT 40404 1231 12 ancient ancient JJ 40404 1231 13 Piedmont Piedmont NNP 40404 1231 14 plain plain JJ 40404 1231 15 , , , 40404 1231 16 as as IN 40404 1231 17 it -PRON- PRP 40404 1231 18 may may MD 40404 1231 19 be be VB 40404 1231 20 restored restore VBN 40404 1231 21 from from IN 40404 1231 22 the the DT 40404 1231 23 remnants remnant NNS 40404 1231 24 of of IN 40404 1231 25 it -PRON- PRP 40404 1231 26 found find VBD 40404 1231 27 on on IN 40404 1231 28 the the DT 40404 1231 29 divides divide NNS 40404 1231 30 , , , 40404 1231 31 is be VBZ 40404 1231 32 not not RB 40404 1231 33 in in IN 40404 1231 34 accordance accordance NN 40404 1231 35 with with IN 40404 1231 36 the the DT 40404 1231 37 structures structure NNS 40404 1231 38 of of IN 40404 1231 39 the the DT 40404 1231 40 country country NN 40404 1231 41 rocks rock NNS 40404 1231 42 . . . 40404 1232 1 Where where WRB 40404 1232 2 these these DT 40404 1232 3 are be VBP 40404 1232 4 exposed expose VBN 40404 1232 5 to to TO 40404 1232 6 view view VB 40404 1232 7 they -PRON- PRP 40404 1232 8 are be VBP 40404 1232 9 seen see VBN 40404 1232 10 to to TO 40404 1232 11 be be VB 40404 1232 12 far far RB 40404 1232 13 from from IN 40404 1232 14 horizontal horizontal JJ 40404 1232 15 . . . 40404 1233 1 On on IN 40404 1233 2 the the DT 40404 1233 3 walls wall NNS 40404 1233 4 of of IN 40404 1233 5 river river NN 40404 1233 6 gorges gorge NNS 40404 1233 7 they -PRON- PRP 40404 1233 8 dip dip VBP 40404 1233 9 steeply steeply RB 40404 1233 10 and and CC 40404 1233 11 in in IN 40404 1233 12 various various JJ 40404 1233 13 directions direction NNS 40404 1233 14 and and CC 40404 1233 15 the the DT 40404 1233 16 streams stream NNS 40404 1233 17 flow flow VBP 40404 1233 18 over over IN 40404 1233 19 their -PRON- PRP$ 40404 1233 20 upturned upturned JJ 40404 1233 21 edges edge NNS 40404 1233 22 . . . 40404 1234 1 As as IN 40404 1234 2 shown show VBN 40404 1234 3 in in IN 40404 1234 4 Figure Figure NNP 40404 1234 5 67 67 CD 40404 1234 6 , , , 40404 1234 7 the the DT 40404 1234 8 rocks rock NNS 40404 1234 9 of of IN 40404 1234 10 the the DT 40404 1234 11 Piedmont Piedmont NNP 40404 1234 12 have have VBP 40404 1234 13 been be VBN 40404 1234 14 folded fold VBN 40404 1234 15 and and CC 40404 1234 16 broken break VBN 40404 1234 17 and and CC 40404 1234 18 tilted tilt VBN 40404 1234 19 . . . 40404 1235 1 [ [ -LRB- 40404 1235 2 Illustration illustration NN 40404 1235 3 : : : 40404 1235 4 Fig Fig NNP 40404 1235 5 . . . 40404 1236 1 67 67 CD 40404 1236 2 . . . 40404 1237 1 Section section NN 40404 1237 2 in in IN 40404 1237 3 Piedmont Piedmont NNP 40404 1237 4 Belt Belt NNP 40404 1237 5 _ _ NNP 40404 1237 6 M M NNP 40404 1237 7 _ _ NNP 40404 1237 8 , , , 40404 1237 9 a a DT 40404 1237 10 monadnock monadnock NN 40404 1237 11 ] ] -RRB- 40404 1237 12 It -PRON- PRP 40404 1237 13 is be VBZ 40404 1237 14 not not RB 40404 1237 15 reasonable reasonable JJ 40404 1237 16 to to TO 40404 1237 17 believe believe VB 40404 1237 18 that that IN 40404 1237 19 when when WRB 40404 1237 20 the the DT 40404 1237 21 rocks rock NNS 40404 1237 22 of of IN 40404 1237 23 the the DT 40404 1237 24 Piedmont Piedmont NNP 40404 1237 25 were be VBD 40404 1237 26 thus thus RB 40404 1237 27 folded fold VBN 40404 1237 28 and and CC 40404 1237 29 otherwise otherwise RB 40404 1237 30 deformed deform VBD 40404 1237 31 the the DT 40404 1237 32 surface surface NN 40404 1237 33 of of IN 40404 1237 34 the the DT 40404 1237 35 region region NN 40404 1237 36 was be VBD 40404 1237 37 a a DT 40404 1237 38 plain plain NN 40404 1237 39 . . . 40404 1238 1 The the DT 40404 1238 2 upturned upturned JJ 40404 1238 3 layers layer NNS 40404 1238 4 have have VBP 40404 1238 5 not not RB 40404 1238 6 always always RB 40404 1238 7 stopped stop VBN 40404 1238 8 abruptly abruptly RB 40404 1238 9 at at IN 40404 1238 10 the the DT 40404 1238 11 even even JJ 40404 1238 12 surface surface NN 40404 1238 13 of of IN 40404 1238 14 the the DT 40404 1238 15 Piedmont Piedmont NNP 40404 1238 16 plain plain NN 40404 1238 17 which which WDT 40404 1238 18 now now RB 40404 1238 19 cuts cut VBZ 40404 1238 20 across across IN 40404 1238 21 them -PRON- PRP 40404 1238 22 . . . 40404 1239 1 They -PRON- PRP 40404 1239 2 are be VBP 40404 1239 3 the the DT 40404 1239 4 bases basis NNS 40404 1239 5 of of IN 40404 1239 6 great great JJ 40404 1239 7 folds fold NNS 40404 1239 8 and and CC 40404 1239 9 tilted tilted JJ 40404 1239 10 blocks block NNS 40404 1239 11 which which WDT 40404 1239 12 must must MD 40404 1239 13 once once RB 40404 1239 14 have have VB 40404 1239 15 risen rise VBN 40404 1239 16 high high RB 40404 1239 17 in in IN 40404 1239 18 air air NN 40404 1239 19 . . . 40404 1240 1 The the DT 40404 1240 2 complex complex JJ 40404 1240 3 and and CC 40404 1240 4 disorderly disorderly JJ 40404 1240 5 structures structure NNS 40404 1240 6 of of IN 40404 1240 7 the the DT 40404 1240 8 Piedmont Piedmont NNP 40404 1240 9 rocks rock NNS 40404 1240 10 are be VBP 40404 1240 11 those those DT 40404 1240 12 seen see VBN 40404 1240 13 in in IN 40404 1240 14 great great JJ 40404 1240 15 mountain mountain NN 40404 1240 16 ranges range NNS 40404 1240 17 , , , 40404 1240 18 and and CC 40404 1240 19 there there EX 40404 1240 20 is be VBZ 40404 1240 21 every every DT 40404 1240 22 reason reason NN 40404 1240 23 to to TO 40404 1240 24 believe believe VB 40404 1240 25 that that IN 40404 1240 26 these these DT 40404 1240 27 rocks rock NNS 40404 1240 28 after after IN 40404 1240 29 their -PRON- PRP$ 40404 1240 30 deformation deformation NN 40404 1240 31 rose rise VBD 40404 1240 32 to to IN 40404 1240 33 mountain mountain NN 40404 1240 34 height height RB 40404 1240 35 . . . 40404 1241 1 [ [ -LRB- 40404 1241 2 Illustration illustration NN 40404 1241 3 : : : 40404 1241 4 Fig Fig NNP 40404 1241 5 . . . 40404 1242 1 68 68 CD 40404 1242 2 . . . 40404 1243 1 The the DT 40404 1243 2 area area NN 40404 1243 3 of of IN 40404 1243 4 the the DT 40404 1243 5 Laurentian Laurentian NNP 40404 1243 6 Peneplain Peneplain NNP 40404 1243 7 ( ( -LRB- 40404 1243 8 shaded shaded JJ 40404 1243 9 ) ) -RRB- 40404 1243 10 ] ] -RRB- 40404 1243 11 The the DT 40404 1243 12 ancient ancient JJ 40404 1243 13 Piedmont Piedmont NNP 40404 1243 14 plain plain JJ 40404 1243 15 cuts cut NNS 40404 1243 16 across across IN 40404 1243 17 these these DT 40404 1243 18 upturned upturned JJ 40404 1243 19 rocks rock NNS 40404 1243 20 as as RB 40404 1243 21 independently independently RB 40404 1243 22 of of IN 40404 1243 23 their -PRON- PRP$ 40404 1243 24 structure structure NN 40404 1243 25 as as IN 40404 1243 26 the the DT 40404 1243 27 even even JJ 40404 1243 28 surface surface NN 40404 1243 29 of of IN 40404 1243 30 the the DT 40404 1243 31 sawed saw VBN 40404 1243 32 stump stump NN 40404 1243 33 of of IN 40404 1243 34 some some DT 40404 1243 35 great great JJ 40404 1243 36 tree tree NN 40404 1243 37 is be VBZ 40404 1243 38 independent independent JJ 40404 1243 39 of of IN 40404 1243 40 the the DT 40404 1243 41 direction direction NN 40404 1243 42 of of IN 40404 1243 43 its -PRON- PRP$ 40404 1243 44 fibers fiber NNS 40404 1243 45 . . . 40404 1244 1 Hence hence RB 40404 1244 2 the the DT 40404 1244 3 Piedmont Piedmont NNP 40404 1244 4 plain plain NN 40404 1244 5 as as IN 40404 1244 6 it -PRON- PRP 40404 1244 7 was be VBD 40404 1244 8 before before IN 40404 1244 9 its -PRON- PRP$ 40404 1244 10 uplift uplift NN 40404 1244 11 was be VBD 40404 1244 12 not not RB 40404 1244 13 a a DT 40404 1244 14 coastal coastal JJ 40404 1244 15 plain plain NN 40404 1244 16 formed form VBN 40404 1244 17 of of IN 40404 1244 18 strata stratum NNS 40404 1244 19 spread spread VBP 40404 1244 20 in in IN 40404 1244 21 horizontal horizontal JJ 40404 1244 22 sheets sheet NNS 40404 1244 23 beneath beneath IN 40404 1244 24 the the DT 40404 1244 25 sea sea NN 40404 1244 26 and and CC 40404 1244 27 then then RB 40404 1244 28 uplifted uplifted JJ 40404 1244 29 ; ; : 40404 1244 30 nor nor CC 40404 1244 31 was be VBD 40404 1244 32 it -PRON- PRP 40404 1244 33 a a DT 40404 1244 34 structural structural JJ 40404 1244 35 plain plain NN 40404 1244 36 , , , 40404 1244 37 due due IN 40404 1244 38 to to IN 40404 1244 39 the the DT 40404 1244 40 resistance resistance NN 40404 1244 41 to to IN 40404 1244 42 erosion erosion NN 40404 1244 43 of of IN 40404 1244 44 some some DT 40404 1244 45 hard hard JJ 40404 1244 46 , , , 40404 1244 47 flat flat RB 40404 1244 48 - - HYPH 40404 1244 49 lying lie VBG 40404 1244 50 layer layer NN 40404 1244 51 of of IN 40404 1244 52 rock rock NN 40404 1244 53 . . . 40404 1245 1 Even even RB 40404 1245 2 surfaces surface NNS 40404 1245 3 developed develop VBN 40404 1245 4 on on IN 40404 1245 5 rocks rock NNS 40404 1245 6 of of IN 40404 1245 7 discordant discordant JJ 40404 1245 8 structure structure NN 40404 1245 9 , , , 40404 1245 10 such such JJ 40404 1245 11 as as IN 40404 1245 12 the the DT 40404 1245 13 Piedmont Piedmont NNP 40404 1245 14 shows show NNS 40404 1245 15 , , , 40404 1245 16 are be VBP 40404 1245 17 produced produce VBN 40404 1245 18 by by IN 40404 1245 19 long long JJ 40404 1245 20 denudation denudation NN 40404 1245 21 , , , 40404 1245 22 and and CC 40404 1245 23 we -PRON- PRP 40404 1245 24 may may MD 40404 1245 25 consider consider VB 40404 1245 26 the the DT 40404 1245 27 Piedmont Piedmont NNP 40404 1245 28 as as IN 40404 1245 29 a a DT 40404 1245 30 peneplain peneplain NN 40404 1245 31 formed form VBN 40404 1245 32 by by IN 40404 1245 33 the the DT 40404 1245 34 wearing wear VBG 40404 1245 35 down down RP 40404 1245 36 of of IN 40404 1245 37 mountain mountain NN 40404 1245 38 ranges range NNS 40404 1245 39 , , , 40404 1245 40 and and CC 40404 1245 41 recently recently RB 40404 1245 42 uplifted uplifted JJ 40404 1245 43 . . . 40404 1246 1 = = NFP 40404 1246 2 The the DT 40404 1246 3 Laurentian Laurentian NNP 40404 1246 4 peneplain.= peneplain.= CD 40404 1246 5 This this DT 40404 1246 6 is be VBZ 40404 1246 7 the the DT 40404 1246 8 name name NN 40404 1246 9 given give VBN 40404 1246 10 to to IN 40404 1246 11 a a DT 40404 1246 12 denuded denude VBN 40404 1246 13 surface surface NN 40404 1246 14 on on IN 40404 1246 15 very very RB 40404 1246 16 ancient ancient JJ 40404 1246 17 rocks rock NNS 40404 1246 18 which which WDT 40404 1246 19 extends extend VBZ 40404 1246 20 from from IN 40404 1246 21 the the DT 40404 1246 22 Arctic Arctic NNP 40404 1246 23 Ocean Ocean NNP 40404 1246 24 to to IN 40404 1246 25 the the DT 40404 1246 26 St. St. NNP 40404 1246 27 Lawrence Lawrence NNP 40404 1246 28 River River NNP 40404 1246 29 and and CC 40404 1246 30 Lake Lake NNP 40404 1246 31 Superior Superior NNP 40404 1246 32 , , , 40404 1246 33 with with IN 40404 1246 34 small small JJ 40404 1246 35 areas area NNS 40404 1246 36 also also RB 40404 1246 37 in in IN 40404 1246 38 northern northern JJ 40404 1246 39 Wisconsin Wisconsin NNP 40404 1246 40 and and CC 40404 1246 41 New New NNP 40404 1246 42 York York NNP 40404 1246 43 . . . 40404 1247 1 Throughout throughout IN 40404 1247 2 this this DT 40404 1247 3 U U NNP 40404 1247 4 - - HYPH 40404 1247 5 shaped shaped JJ 40404 1247 6 area area NN 40404 1247 7 , , , 40404 1247 8 which which WDT 40404 1247 9 incloses inclose VBZ 40404 1247 10 Hudson Hudson NNP 40404 1247 11 Bay Bay NNP 40404 1247 12 within within IN 40404 1247 13 its -PRON- PRP$ 40404 1247 14 arms arm NNS 40404 1247 15 , , , 40404 1247 16 the the DT 40404 1247 17 country country NN 40404 1247 18 rocks rock NNS 40404 1247 19 have have VBP 40404 1247 20 the the DT 40404 1247 21 complicated complicate VBN 40404 1247 22 and and CC 40404 1247 23 contorted contorted JJ 40404 1247 24 structures structure NNS 40404 1247 25 which which WDT 40404 1247 26 characterize characterize VBP 40404 1247 27 mountain mountain NN 40404 1247 28 ranges range NNS 40404 1247 29 ( ( -LRB- 40404 1247 30 see see VB 40404 1247 31 Fig Fig NNP 40404 1247 32 . . . 40404 1248 1 179 179 CD 40404 1248 2 , , , 40404 1248 3 P. P. NNP 40404 1248 4 211 211 CD 40404 1248 5 ) ) -RRB- 40404 1248 6 . . . 40404 1249 1 But but CC 40404 1249 2 the the DT 40404 1249 3 surface surface NN 40404 1249 4 of of IN 40404 1249 5 the the DT 40404 1249 6 area area NN 40404 1249 7 is be VBZ 40404 1249 8 by by IN 40404 1249 9 no no DT 40404 1249 10 means means NN 40404 1249 11 mountainous mountainous JJ 40404 1249 12 . . . 40404 1250 1 The the DT 40404 1250 2 sky sky NN 40404 1250 3 line line NN 40404 1250 4 when when WRB 40404 1250 5 viewed view VBN 40404 1250 6 from from IN 40404 1250 7 the the DT 40404 1250 8 divides divide NNS 40404 1250 9 is be VBZ 40404 1250 10 unbroken unbroken VBN 40404 1250 11 by by IN 40404 1250 12 mountain mountain NN 40404 1250 13 peaks peak NNS 40404 1250 14 or or CC 40404 1250 15 rugged rugged JJ 40404 1250 16 hills hill NNS 40404 1250 17 . . . 40404 1251 1 The the DT 40404 1251 2 surface surface NN 40404 1251 3 of of IN 40404 1251 4 the the DT 40404 1251 5 arm arm NN 40404 1251 6 west west RB 40404 1251 7 of of IN 40404 1251 8 Hudson Hudson NNP 40404 1251 9 Bay Bay NNP 40404 1251 10 is be VBZ 40404 1251 11 gently gently RB 40404 1251 12 undulating undulate VBG 40404 1251 13 and and CC 40404 1251 14 that that DT 40404 1251 15 of of IN 40404 1251 16 the the DT 40404 1251 17 eastern eastern JJ 40404 1251 18 arm arm NNP 40404 1251 19 has have VBZ 40404 1251 20 been be VBN 40404 1251 21 roughened roughen VBN 40404 1251 22 to to IN 40404 1251 23 low low JJ 40404 1251 24 - - HYPH 40404 1251 25 rolling roll VBG 40404 1251 26 hills hill NNS 40404 1251 27 and and CC 40404 1251 28 dissected dissect VBN 40404 1251 29 in in IN 40404 1251 30 places place NNS 40404 1251 31 by by IN 40404 1251 32 such such JJ 40404 1251 33 deep deep JJ 40404 1251 34 river river NN 40404 1251 35 gorges gorge NNS 40404 1251 36 as as IN 40404 1251 37 those those DT 40404 1251 38 of of IN 40404 1251 39 the the DT 40404 1251 40 Ottawa Ottawa NNP 40404 1251 41 and and CC 40404 1251 42 Saguenay Saguenay NNP 40404 1251 43 . . . 40404 1252 1 This this DT 40404 1252 2 immense immense JJ 40404 1252 3 area area NN 40404 1252 4 may may MD 40404 1252 5 be be VB 40404 1252 6 regarded regard VBN 40404 1252 7 as as IN 40404 1252 8 an an DT 40404 1252 9 ancient ancient JJ 40404 1252 10 peneplain peneplain NN 40404 1252 11 truncating truncate VBG 40404 1252 12 the the DT 40404 1252 13 bases basis NNS 40404 1252 14 of of IN 40404 1252 15 long long RB 40404 1252 16 - - HYPH 40404 1252 17 vanished vanish VBN 40404 1252 18 mountains mountain NNS 40404 1252 19 and and CC 40404 1252 20 dissected dissect VBN 40404 1252 21 after after IN 40404 1252 22 elevation elevation NN 40404 1252 23 . . . 40404 1253 1 In in IN 40404 1253 2 the the DT 40404 1253 3 examples example NNS 40404 1253 4 cited cite VBD 40404 1253 5 the the DT 40404 1253 6 uplift uplift NN 40404 1253 7 has have VBZ 40404 1253 8 been be VBN 40404 1253 9 a a DT 40404 1253 10 broad broad JJ 40404 1253 11 one one NN 40404 1253 12 and and CC 40404 1253 13 to to IN 40404 1253 14 comparatively comparatively RB 40404 1253 15 little little JJ 40404 1253 16 height height NN 40404 1253 17 . . . 40404 1254 1 Where where WRB 40404 1254 2 peneplains peneplain NNS 40404 1254 3 have have VBP 40404 1254 4 been be VBN 40404 1254 5 uplifted uplift VBN 40404 1254 6 to to IN 40404 1254 7 great great JJ 40404 1254 8 height height NN 40404 1254 9 and and CC 40404 1254 10 have have VB 40404 1254 11 since since IN 40404 1254 12 been be VBN 40404 1254 13 well well RB 40404 1254 14 dissected dissect VBN 40404 1254 15 , , , 40404 1254 16 and and CC 40404 1254 17 where where WRB 40404 1254 18 they -PRON- PRP 40404 1254 19 have have VBP 40404 1254 20 been be VBN 40404 1254 21 upfolded upfolde VBN 40404 1254 22 and and CC 40404 1254 23 broken break VBN 40404 1254 24 and and CC 40404 1254 25 uptilted uptilted JJ 40404 1254 26 , , , 40404 1254 27 their -PRON- PRP$ 40404 1254 28 recognition recognition NN 40404 1254 29 becomes become VBZ 40404 1254 30 more more RBR 40404 1254 31 difficult difficult JJ 40404 1254 32 . . . 40404 1255 1 Yet yet CC 40404 1255 2 recent recent JJ 40404 1255 3 observers observer NNS 40404 1255 4 have have VBP 40404 1255 5 found find VBN 40404 1255 6 evidences evidence NNS 40404 1255 7 of of IN 40404 1255 8 ancient ancient JJ 40404 1255 9 lowland lowland NN 40404 1255 10 surfaces surface NNS 40404 1255 11 of of IN 40404 1255 12 erosion erosion NN 40404 1255 13 on on IN 40404 1255 14 the the DT 40404 1255 15 summits summit NNS 40404 1255 16 of of IN 40404 1255 17 the the DT 40404 1255 18 Allegheny Allegheny NNP 40404 1255 19 ridges ridge NNS 40404 1255 20 , , , 40404 1255 21 the the DT 40404 1255 22 Cascade Cascade NNP 40404 1255 23 Mountains Mountains NNPS 40404 1255 24 ( ( -LRB- 40404 1255 25 Fig fig NN 40404 1255 26 . . . 40404 1256 1 69 69 CD 40404 1256 2 ) ) -RRB- 40404 1256 3 , , , 40404 1256 4 and and CC 40404 1256 5 the the DT 40404 1256 6 western western JJ 40404 1256 7 slope slope NN 40404 1256 8 of of IN 40404 1256 9 the the DT 40404 1256 10 Sierra Sierra NNP 40404 1256 11 Nevadas Nevadas NNP 40404 1256 12 . . . 40404 1257 1 [ [ -LRB- 40404 1257 2 Illustration illustration NN 40404 1257 3 : : : 40404 1257 4 Fig Fig NNP 40404 1257 5 . . . 40404 1258 1 69 69 CD 40404 1258 2 . . . 40404 1259 1 View View NNP 40404 1259 2 in in IN 40404 1259 3 the the DT 40404 1259 4 Cascade Cascade NNP 40404 1259 5 Mountains Mountains NNPS 40404 1259 6 , , , 40404 1259 7 Washington Washington NNP 40404 1259 8 The the DT 40404 1259 9 general general JJ 40404 1259 10 level level NN 40404 1259 11 to to TO 40404 1259 12 which which WDT 40404 1259 13 these these DT 40404 1259 14 ridges ridge NNS 40404 1259 15 rise rise VBP 40404 1259 16 may may MD 40404 1259 17 be be VB 40404 1259 18 accounted account VBN 40404 1259 19 for for IN 40404 1259 20 by by IN 40404 1259 21 the the DT 40404 1259 22 uplift uplift NN 40404 1259 23 and and CC 40404 1259 24 dissection dissection NN 40404 1259 25 of of IN 40404 1259 26 a a DT 40404 1259 27 once once RB 40404 1259 28 low low RB 40404 1259 29 - - HYPH 40404 1259 30 lying lie VBG 40404 1259 31 peneplain peneplain NN 40404 1259 32 ] ] -RRB- 40404 1259 33 = = NFP 40404 1259 34 The the DT 40404 1259 35 southern southern JJ 40404 1259 36 Appalachian Appalachian NNP 40404 1259 37 region.= region.= CD 40404 1259 38 We -PRON- PRP 40404 1259 39 have have VBP 40404 1259 40 here here RB 40404 1259 41 an an DT 40404 1259 42 example example NN 40404 1259 43 of of IN 40404 1259 44 an an DT 40404 1259 45 area area NN 40404 1259 46 the the DT 40404 1259 47 latter latter JJ 40404 1259 48 part part NN 40404 1259 49 of of IN 40404 1259 50 whose whose WP$ 40404 1259 51 geological geological JJ 40404 1259 52 history history NN 40404 1259 53 may may MD 40404 1259 54 be be VB 40404 1259 55 deciphered decipher VBN 40404 1259 56 by by IN 40404 1259 57 means mean NNS 40404 1259 58 of of IN 40404 1259 59 its -PRON- PRP$ 40404 1259 60 land land NN 40404 1259 61 forms form NNS 40404 1259 62 . . . 40404 1260 1 The the DT 40404 1260 2 generalized generalized JJ 40404 1260 3 section section NN 40404 1260 4 of of IN 40404 1260 5 Figure Figure NNP 40404 1260 6 70 70 CD 40404 1260 7 , , , 40404 1260 8 which which WDT 40404 1260 9 passes pass VBZ 40404 1260 10 from from IN 40404 1260 11 west west NN 40404 1260 12 to to IN 40404 1260 13 east east NN 40404 1260 14 across across IN 40404 1260 15 a a DT 40404 1260 16 portion portion NN 40404 1260 17 of of IN 40404 1260 18 the the DT 40404 1260 19 region region NN 40404 1260 20 in in IN 40404 1260 21 eastern eastern JJ 40404 1260 22 Tennessee Tennessee NNP 40404 1260 23 , , , 40404 1260 24 shows show VBZ 40404 1260 25 on on IN 40404 1260 26 the the DT 40404 1260 27 west west NN 40404 1260 28 a a DT 40404 1260 29 part part NN 40404 1260 30 of of IN 40404 1260 31 the the DT 40404 1260 32 broad broad JJ 40404 1260 33 Cumberland Cumberland NNP 40404 1260 34 plateau plateau NN 40404 1260 35 . . . 40404 1261 1 On on IN 40404 1261 2 the the DT 40404 1261 3 east east NN 40404 1261 4 is be VBZ 40404 1261 5 a a DT 40404 1261 6 roughened roughen VBN 40404 1261 7 upland upland JJ 40404 1261 8 platform platform NN 40404 1261 9 , , , 40404 1261 10 from from IN 40404 1261 11 which which WDT 40404 1261 12 rise rise NN 40404 1261 13 in in IN 40404 1261 14 the the DT 40404 1261 15 distance distance NN 40404 1261 16 the the DT 40404 1261 17 peaks peak NNS 40404 1261 18 of of IN 40404 1261 19 the the DT 40404 1261 20 Great Great NNP 40404 1261 21 Smoky Smoky NNP 40404 1261 22 Mountains Mountains NNPS 40404 1261 23 . . . 40404 1262 1 The the DT 40404 1262 2 plateau plateau NN 40404 1262 3 , , , 40404 1262 4 consisting consist VBG 40404 1262 5 of of IN 40404 1262 6 strata strata NN 40404 1262 7 but but CC 40404 1262 8 little little JJ 40404 1262 9 changed changed JJ 40404 1262 10 from from IN 40404 1262 11 their -PRON- PRP$ 40404 1262 12 original original JJ 40404 1262 13 flat flat RB 40404 1262 14 - - HYPH 40404 1262 15 lying lie VBG 40404 1262 16 attitude attitude NN 40404 1262 17 , , , 40404 1262 18 and and CC 40404 1262 19 the the DT 40404 1262 20 platform platform NN 40404 1262 21 , , , 40404 1262 22 developed develop VBN 40404 1262 23 on on IN 40404 1262 24 rocks rock NNS 40404 1262 25 of of IN 40404 1262 26 disordered disorder VBN 40404 1262 27 structure structure NN 40404 1262 28 made make VBN 40404 1262 29 crystalline crystalline NN 40404 1262 30 by by IN 40404 1262 31 heat heat NN 40404 1262 32 and and CC 40404 1262 33 pressure pressure NN 40404 1262 34 , , , 40404 1262 35 both both DT 40404 1262 36 stand stand VBP 40404 1262 37 at at IN 40404 1262 38 the the DT 40404 1262 39 common common JJ 40404 1262 40 level level NN 40404 1262 41 of of IN 40404 1262 42 the the DT 40404 1262 43 line line NN 40404 1262 44 AB ab NN 40404 1262 45 . . . 40404 1263 1 They -PRON- PRP 40404 1263 2 are be VBP 40404 1263 3 separated separate VBN 40404 1263 4 by by IN 40404 1263 5 the the DT 40404 1263 6 Appalachian appalachian JJ 40404 1263 7 valley valley NN 40404 1263 8 , , , 40404 1263 9 forty forty CD 40404 1263 10 miles mile NNS 40404 1263 11 wide wide JJ 40404 1263 12 , , , 40404 1263 13 cut cut VBN 40404 1263 14 in in IN 40404 1263 15 strata strata NN 40404 1263 16 which which WDT 40404 1263 17 have have VBP 40404 1263 18 been be VBN 40404 1263 19 folded fold VBN 40404 1263 20 and and CC 40404 1263 21 broken break VBN 40404 1263 22 into into IN 40404 1263 23 long long JJ 40404 1263 24 narrow narrow JJ 40404 1263 25 blocks block NNS 40404 1263 26 . . . 40404 1264 1 The the DT 40404 1264 2 valley valley NN 40404 1264 3 is be VBZ 40404 1264 4 traversed traverse VBN 40404 1264 5 lengthwise lengthwise RB 40404 1264 6 by by IN 40404 1264 7 long long JJ 40404 1264 8 , , , 40404 1264 9 low low JJ 40404 1264 10 ridges ridge NNS 40404 1264 11 , , , 40404 1264 12 the the DT 40404 1264 13 outcropping outcrop VBG 40404 1264 14 edges edge NNS 40404 1264 15 of of IN 40404 1264 16 the the DT 40404 1264 17 harder hard JJR 40404 1264 18 strata strata NN 40404 1264 19 , , , 40404 1264 20 which which WDT 40404 1264 21 rise rise VBP 40404 1264 22 to to IN 40404 1264 23 about about IN 40404 1264 24 the the DT 40404 1264 25 same same JJ 40404 1264 26 level,--that level,--that , 40404 1264 27 of of IN 40404 1264 28 the the DT 40404 1264 29 line line NN 40404 1264 30 _ _ NNP 40404 1264 31 cd cd NNP 40404 1264 32 _ _ NNP 40404 1264 33 . . . 40404 1265 1 Between between IN 40404 1265 2 these these DT 40404 1265 3 ridges ridge VBZ 40404 1265 4 stretch stretch NN 40404 1265 5 valley valley NN 40404 1265 6 lowlands lowland NNS 40404 1265 7 at at IN 40404 1265 8 the the DT 40404 1265 9 level level NN 40404 1265 10 _ _ NNP 40404 1265 11 ef ef NNP 40404 1265 12 _ _ NNP 40404 1265 13 excavated excavate VBD 40404 1265 14 in in IN 40404 1265 15 the the DT 40404 1265 16 weaker weak JJR 40404 1265 17 rocks rock NNS 40404 1265 18 , , , 40404 1265 19 while while IN 40404 1265 20 somewhat somewhat RB 40404 1265 21 below below IN 40404 1265 22 them -PRON- PRP 40404 1265 23 lie lie VBP 40404 1265 24 the the DT 40404 1265 25 channels channel NNS 40404 1265 26 of of IN 40404 1265 27 the the DT 40404 1265 28 present present JJ 40404 1265 29 streams stream NNS 40404 1265 30 now now RB 40404 1265 31 busily busily RB 40404 1265 32 engaged engage VBD 40404 1265 33 in in IN 40404 1265 34 deepening deepen VBG 40404 1265 35 their -PRON- PRP$ 40404 1265 36 beds bed NNS 40404 1265 37 . . . 40404 1266 1 _ _ NNP 40404 1266 2 The the DT 40404 1266 3 valley valley NN 40404 1266 4 lowlands lowland NNS 40404 1266 5 . . . 40404 1266 6 _ _ NNP 40404 1266 7 Were be VBD 40404 1266 8 they -PRON- PRP 40404 1266 9 planed plane VBN 40404 1266 10 by by IN 40404 1266 11 graded graded JJ 40404 1266 12 or or CC 40404 1266 13 ungraded ungraded JJ 40404 1266 14 streams stream NNS 40404 1266 15 ? ? . 40404 1267 1 Have have VBP 40404 1267 2 the the DT 40404 1267 3 present present JJ 40404 1267 4 streams stream NNS 40404 1267 5 reached reach VBN 40404 1267 6 grade grade NN 40404 1267 7 ? ? . 40404 1268 1 Why why WRB 40404 1268 2 did do VBD 40404 1268 3 the the DT 40404 1268 4 streams stream NNS 40404 1268 5 cease cease VB 40404 1268 6 widening widen VBG 40404 1268 7 the the DT 40404 1268 8 floors floor NNS 40404 1268 9 of of IN 40404 1268 10 the the DT 40404 1268 11 valley valley NNP 40404 1268 12 lowlands lowland NNS 40404 1268 13 ? ? . 40404 1269 1 How how WRB 40404 1269 2 long long RB 40404 1269 3 since since RB 40404 1269 4 ? ? . 40404 1270 1 When when WRB 40404 1270 2 will will MD 40404 1270 3 they -PRON- PRP 40404 1270 4 begin begin VB 40404 1270 5 anew anew RB 40404 1270 6 the the DT 40404 1270 7 work work NN 40404 1270 8 of of IN 40404 1270 9 lateral lateral JJ 40404 1270 10 planation planation NN 40404 1270 11 ? ? . 40404 1271 1 What what WDT 40404 1271 2 effect effect NN 40404 1271 3 will will MD 40404 1271 4 this this DT 40404 1271 5 have have VB 40404 1271 6 on on IN 40404 1271 7 the the DT 40404 1271 8 ridges ridge NNS 40404 1271 9 if if IN 40404 1271 10 the the DT 40404 1271 11 present present JJ 40404 1271 12 cycle cycle NN 40404 1271 13 of of IN 40404 1271 14 erosion erosion NN 40404 1271 15 continues continue VBZ 40404 1271 16 long long RB 40404 1271 17 uninterrupted uninterrupted JJ 40404 1271 18 ? ? . 40404 1272 1 [ [ -LRB- 40404 1272 2 Illustration illustration NN 40404 1272 3 : : : 40404 1272 4 Fig Fig NNP 40404 1272 5 . . . 40404 1273 1 70 70 CD 40404 1273 2 . . . 40404 1274 1 Generalized Generalized NNP 40404 1274 2 Section Section NNP 40404 1274 3 of of IN 40404 1274 4 the the DT 40404 1274 5 Southern Southern NNP 40404 1274 6 Appalachian Appalachian NNP 40404 1274 7 Region Region NNP 40404 1274 8 in in IN 40404 1274 9 Eastern Eastern NNP 40404 1274 10 Tennessee Tennessee NNP 40404 1274 11 ] ] -RRB- 40404 1274 12 _ _ NNP 40404 1274 13 The the DT 40404 1274 14 ridges ridge NNS 40404 1274 15 of of IN 40404 1274 16 the the DT 40404 1274 17 Appalachian appalachian JJ 40404 1274 18 valley valley NN 40404 1274 19 . . . 40404 1274 20 _ _ NNP 40404 1274 21 Why why WRB 40404 1274 22 do do VBP 40404 1274 23 they -PRON- PRP 40404 1274 24 stand stand VB 40404 1274 25 above above IN 40404 1274 26 the the DT 40404 1274 27 valley valley NNP 40404 1274 28 lowlands lowland NNS 40404 1274 29 ? ? . 40404 1275 1 Why why WRB 40404 1275 2 do do VBP 40404 1275 3 their -PRON- PRP$ 40404 1275 4 summits summit NNS 40404 1275 5 lie lie VB 40404 1275 6 in in IN 40404 1275 7 about about IN 40404 1275 8 the the DT 40404 1275 9 same same JJ 40404 1275 10 plane plane NN 40404 1275 11 ? ? . 40404 1276 1 Refilling refill VBG 40404 1276 2 the the DT 40404 1276 3 valleys valley NNS 40404 1276 4 intervening intervene VBG 40404 1276 5 between between IN 40404 1276 6 these these DT 40404 1276 7 ridges ridge NNS 40404 1276 8 with with IN 40404 1276 9 the the DT 40404 1276 10 material material NN 40404 1276 11 removed remove VBN 40404 1276 12 by by IN 40404 1276 13 the the DT 40404 1276 14 streams stream NNS 40404 1276 15 , , , 40404 1276 16 what what WP 40404 1276 17 is be VBZ 40404 1276 18 the the DT 40404 1276 19 nature nature NN 40404 1276 20 of of IN 40404 1276 21 the the DT 40404 1276 22 surface surface NN 40404 1276 23 thus thus RB 40404 1276 24 restored restore VBD 40404 1276 25 ? ? . 40404 1277 1 Does do VBZ 40404 1277 2 this this DT 40404 1277 3 surface surface NN 40404 1277 4 _ _ NNP 40404 1277 5 cd cd NNP 40404 1277 6 _ _ NNP 40404 1277 7 accord accord NN 40404 1277 8 with with IN 40404 1277 9 the the DT 40404 1277 10 rock rock NN 40404 1277 11 structures structure NNS 40404 1277 12 on on IN 40404 1277 13 which which WDT 40404 1277 14 it -PRON- PRP 40404 1277 15 has have VBZ 40404 1277 16 been be VBN 40404 1277 17 developed develop VBN 40404 1277 18 ? ? . 40404 1278 1 How how WRB 40404 1278 2 may may MD 40404 1278 3 it -PRON- PRP 40404 1278 4 have have VB 40404 1278 5 been be VBN 40404 1278 6 made make VBN 40404 1278 7 ? ? . 40404 1279 1 At at IN 40404 1279 2 what what WP 40404 1279 3 height height NN 40404 1279 4 did do VBD 40404 1279 5 the the DT 40404 1279 6 land land NN 40404 1279 7 stand stand VB 40404 1279 8 then then RB 40404 1279 9 , , , 40404 1279 10 compared compare VBN 40404 1279 11 with with IN 40404 1279 12 its -PRON- PRP$ 40404 1279 13 present present JJ 40404 1279 14 height height NN 40404 1279 15 ? ? . 40404 1280 1 What what WDT 40404 1280 2 elevations elevation NNS 40404 1280 3 stood stand VBD 40404 1280 4 above above IN 40404 1280 5 the the DT 40404 1280 6 surface surface NN 40404 1280 7 _ _ NNP 40404 1280 8 cd cd NNP 40404 1280 9 _ _ NNP 40404 1280 10 ? ? . 40404 1281 1 Why why WRB 40404 1281 2 ? ? . 40404 1282 1 What what WDT 40404 1282 2 name name NN 40404 1282 3 may may MD 40404 1282 4 you -PRON- PRP 40404 1282 5 use use VB 40404 1282 6 to to TO 40404 1282 7 designate designate VB 40404 1282 8 them -PRON- PRP 40404 1282 9 ? ? . 40404 1283 1 How how WRB 40404 1283 2 does do VBZ 40404 1283 3 the the DT 40404 1283 4 length length NN 40404 1283 5 of of IN 40404 1283 6 time time NN 40404 1283 7 needed need VBN 40404 1283 8 to to TO 40404 1283 9 develop develop VB 40404 1283 10 the the DT 40404 1283 11 surface surface NN 40404 1283 12 _ _ NNP 40404 1283 13 cd cd NNP 40404 1283 14 _ _ NNP 40404 1283 15 compare compare VB 40404 1283 16 with with IN 40404 1283 17 that that DT 40404 1283 18 needed need VBN 40404 1283 19 to to TO 40404 1283 20 develop develop VB 40404 1283 21 the the DT 40404 1283 22 valley valley NN 40404 1283 23 lowlands lowland NNS 40404 1283 24 ? ? . 40404 1284 1 _ _ NNP 40404 1284 2 The the DT 40404 1284 3 Platform Platform NNP 40404 1284 4 And and CC 40404 1284 5 Plateau Plateau NNP 40404 1284 6 . . . 40404 1284 7 _ _ NNP 40404 1284 8 Why why WRB 40404 1284 9 do do VBP 40404 1284 10 they -PRON- PRP 40404 1284 11 stand stand VB 40404 1284 12 at at IN 40404 1284 13 a a DT 40404 1284 14 common common JJ 40404 1284 15 level level NN 40404 1284 16 ab ab NN 40404 1284 17 ? ? . 40404 1285 1 Of of IN 40404 1285 2 what what WDT 40404 1285 3 surface surface NN 40404 1285 4 may may MD 40404 1285 5 they -PRON- PRP 40404 1285 6 be be VB 40404 1285 7 remnants remnant NNS 40404 1285 8 ? ? . 40404 1286 1 Is be VBZ 40404 1286 2 it -PRON- PRP 40404 1286 3 accordant accordant JJ 40404 1286 4 with with IN 40404 1286 5 the the DT 40404 1286 6 rock rock NN 40404 1286 7 structure structure NN 40404 1286 8 ? ? . 40404 1287 1 How how WRB 40404 1287 2 was be VBD 40404 1287 3 it -PRON- PRP 40404 1287 4 produced produce VBN 40404 1287 5 ? ? . 40404 1288 1 What what WDT 40404 1288 2 unconsumed unconsumed JJ 40404 1288 3 masses masse NNS 40404 1288 4 overlooked overlook VBD 40404 1288 5 it -PRON- PRP 40404 1288 6 ? ? . 40404 1289 1 Did do VBD 40404 1289 2 the the DT 40404 1289 3 rocks rock NNS 40404 1289 4 of of IN 40404 1289 5 the the DT 40404 1289 6 Appalachian Appalachian NNP 40404 1289 7 valley valley NN 40404 1289 8 stand stand NN 40404 1289 9 above above IN 40404 1289 10 this this DT 40404 1289 11 surface surface NN 40404 1289 12 when when WRB 40404 1289 13 it -PRON- PRP 40404 1289 14 was be VBD 40404 1289 15 produced produce VBN 40404 1289 16 ? ? . 40404 1290 1 Did do VBD 40404 1290 2 they -PRON- PRP 40404 1290 3 then then RB 40404 1290 4 stand stand VB 40404 1290 5 below below IN 40404 1290 6 it -PRON- PRP 40404 1290 7 ? ? . 40404 1291 1 Compare compare VB 40404 1291 2 the the DT 40404 1291 3 time time NN 40404 1291 4 needed need VBN 40404 1291 5 to to TO 40404 1291 6 develop develop VB 40404 1291 7 this this DT 40404 1291 8 surface surface NN 40404 1291 9 with with IN 40404 1291 10 that that DT 40404 1291 11 needed need VBN 40404 1291 12 to to TO 40404 1291 13 develop develop VB 40404 1291 14 _ _ NNP 40404 1291 15 cd cd NNP 40404 1291 16 _ _ NNP 40404 1291 17 . . . 40404 1292 1 Which which WDT 40404 1292 2 surface surface NN 40404 1292 3 is be VBZ 40404 1292 4 the the DT 40404 1292 5 older old JJR 40404 1292 6 ? ? . 40404 1293 1 How how WRB 40404 1293 2 many many JJ 40404 1293 3 cycles cycle NNS 40404 1293 4 of of IN 40404 1293 5 erosion erosion NN 40404 1293 6 are be VBP 40404 1293 7 represented represent VBN 40404 1293 8 here here RB 40404 1293 9 ? ? . 40404 1294 1 Give give VB 40404 1294 2 the the DT 40404 1294 3 erosion erosion NN 40404 1294 4 history history NN 40404 1294 5 of of IN 40404 1294 6 the the DT 40404 1294 7 region region NN 40404 1294 8 by by IN 40404 1294 9 cycles cycle NNS 40404 1294 10 , , , 40404 1294 11 beginning begin VBG 40404 1294 12 with with IN 40404 1294 13 the the DT 40404 1294 14 oldest old JJS 40404 1294 15 , , , 40404 1294 16 the the DT 40404 1294 17 work work NN 40404 1294 18 done do VBN 40404 1294 19 in in IN 40404 1294 20 each each DT 40404 1294 21 and and CC 40404 1294 22 the the DT 40404 1294 23 work work NN 40404 1294 24 left leave VBD 40404 1294 25 undone undone NNP 40404 1294 26 , , , 40404 1294 27 what what WP 40404 1294 28 brought bring VBD 40404 1294 29 each each DT 40404 1294 30 cycle cycle NN 40404 1294 31 to to IN 40404 1294 32 a a DT 40404 1294 33 close close NN 40404 1294 34 , , , 40404 1294 35 and and CC 40404 1294 36 how how WRB 40404 1294 37 long long RB 40404 1294 38 relatively relatively RB 40404 1294 39 it -PRON- PRP 40404 1294 40 continued continue VBD 40404 1294 41 . . . 40404 1295 1 CHAPTER CHAPTER NNP 40404 1295 2 IV IV NNP 40404 1295 3 RIVER RIVER NNS 40404 1295 4 DEPOSITS deposits VBP 40404 1295 5 The the DT 40404 1295 6 characteristic characteristic JJ 40404 1295 7 features feature NNS 40404 1295 8 of of IN 40404 1295 9 river river NN 40404 1295 10 deposits deposit NNS 40404 1295 11 and and CC 40404 1295 12 the the DT 40404 1295 13 forms form NNS 40404 1295 14 which which WDT 40404 1295 15 they -PRON- PRP 40404 1295 16 assume assume VBP 40404 1295 17 may may MD 40404 1295 18 be be VB 40404 1295 19 treated treat VBN 40404 1295 20 under under IN 40404 1295 21 three three CD 40404 1295 22 heads head NNS 40404 1295 23 : : : 40404 1295 24 ( ( -LRB- 40404 1295 25 1 1 LS 40404 1295 26 ) ) -RRB- 40404 1295 27 valley valley NN 40404 1295 28 deposits deposit NNS 40404 1295 29 , , , 40404 1295 30 ( ( -LRB- 40404 1295 31 2 2 LS 40404 1295 32 ) ) -RRB- 40404 1295 33 basin basin NN 40404 1295 34 deposits deposit NNS 40404 1295 35 , , , 40404 1295 36 and and CC 40404 1295 37 ( ( -LRB- 40404 1295 38 3 3 LS 40404 1295 39 ) ) -RRB- 40404 1295 40 deltas delta NNS 40404 1295 41 . . . 40404 1296 1 Valley Valley NNP 40404 1296 2 Deposits Deposits NNP 40404 1296 3 = = SYM 40404 1296 4 Flood flood NN 40404 1296 5 plains.= plains.= CD 40404 1296 6 The the DT 40404 1296 7 deposits deposit NNS 40404 1296 8 which which WDT 40404 1296 9 streams stream VBZ 40404 1296 10 build build VBP 40404 1296 11 along along IN 40404 1296 12 their -PRON- PRP$ 40404 1296 13 courses course NNS 40404 1296 14 at at IN 40404 1296 15 times time NNS 40404 1296 16 of of IN 40404 1296 17 flood flood NN 40404 1296 18 are be VBP 40404 1296 19 known know VBN 40404 1296 20 as as IN 40404 1296 21 flood flood NN 40404 1296 22 plains plain NNS 40404 1296 23 . . . 40404 1297 1 A a DT 40404 1297 2 swift swift JJ 40404 1297 3 current current NN 40404 1297 4 then then RB 40404 1297 5 sweeps sweep VBZ 40404 1297 6 along along IN 40404 1297 7 the the DT 40404 1297 8 channel channel NN 40404 1297 9 , , , 40404 1297 10 while while IN 40404 1297 11 a a DT 40404 1297 12 shallow shallow JJ 40404 1297 13 sheet sheet NN 40404 1297 14 of of IN 40404 1297 15 water water NN 40404 1297 16 moves move NNS 40404 1297 17 slowly slowly RB 40404 1297 18 over over IN 40404 1297 19 the the DT 40404 1297 20 flood flood NN 40404 1297 21 plain plain JJ 40404 1297 22 , , , 40404 1297 23 spreading spread VBG 40404 1297 24 upon upon IN 40404 1297 25 it -PRON- PRP 40404 1297 26 a a DT 40404 1297 27 thin thin JJ 40404 1297 28 layer layer NN 40404 1297 29 of of IN 40404 1297 30 sediment sediment NN 40404 1297 31 . . . 40404 1298 1 It -PRON- PRP 40404 1298 2 has have VBZ 40404 1298 3 been be VBN 40404 1298 4 estimated estimate VBN 40404 1298 5 that that IN 40404 1298 6 each each DT 40404 1298 7 inundation inundation NN 40404 1298 8 of of IN 40404 1298 9 the the DT 40404 1298 10 Nile Nile NNP 40404 1298 11 leaves leave VBZ 40404 1298 12 a a DT 40404 1298 13 layer layer NN 40404 1298 14 of of IN 40404 1298 15 fertilizing fertilize VBG 40404 1298 16 silt silt NN 40404 1298 17 three three CD 40404 1298 18 hundredths hundredth NNS 40404 1298 19 of of IN 40404 1298 20 an an DT 40404 1298 21 inch inch NN 40404 1298 22 thick thick JJ 40404 1298 23 over over IN 40404 1298 24 the the DT 40404 1298 25 flood flood NN 40404 1298 26 plain plain NN 40404 1298 27 of of IN 40404 1298 28 Egypt Egypt NNP 40404 1298 29 . . . 40404 1299 1 Flood flood NN 40404 1299 2 plains plain NNS 40404 1299 3 may may MD 40404 1299 4 consist consist VB 40404 1299 5 of of IN 40404 1299 6 a a DT 40404 1299 7 thin thin JJ 40404 1299 8 spread spread NN 40404 1299 9 of of IN 40404 1299 10 alluvium alluvium NN 40404 1299 11 over over IN 40404 1299 12 the the DT 40404 1299 13 flat flat JJ 40404 1299 14 rock rock NN 40404 1299 15 floor floor NN 40404 1299 16 of of IN 40404 1299 17 a a DT 40404 1299 18 valley valley NN 40404 1299 19 which which WDT 40404 1299 20 is be VBZ 40404 1299 21 being be VBG 40404 1299 22 widened widen VBN 40404 1299 23 by by IN 40404 1299 24 the the DT 40404 1299 25 lateral lateral JJ 40404 1299 26 erosion erosion NN 40404 1299 27 of of IN 40404 1299 28 a a DT 40404 1299 29 graded grade VBN 40404 1299 30 stream stream NN 40404 1299 31 ( ( -LRB- 40404 1299 32 Fig fig NN 40404 1299 33 . . . 40404 1300 1 60 60 CD 40404 1300 2 ) ) -RRB- 40404 1300 3 . . . 40404 1301 1 Flood flood NN 40404 1301 2 - - HYPH 40404 1301 3 plain plain NN 40404 1301 4 deposits deposit NNS 40404 1301 5 of of IN 40404 1301 6 great great JJ 40404 1301 7 thickness thickness NN 40404 1301 8 may may MD 40404 1301 9 be be VB 40404 1301 10 built build VBN 40404 1301 11 by by IN 40404 1301 12 aggrading aggrade VBG 40404 1301 13 rivers river NNS 40404 1301 14 even even RB 40404 1301 15 in in IN 40404 1301 16 valleys valley NNS 40404 1301 17 whose whose WP$ 40404 1301 18 rock rock NN 40404 1301 19 floors floor NNS 40404 1301 20 have have VBP 40404 1301 21 never never RB 40404 1301 22 been be VBN 40404 1301 23 thus thus RB 40404 1301 24 widened widen VBN 40404 1301 25 ( ( -LRB- 40404 1301 26 Fig fig NN 40404 1301 27 . . . 40404 1302 1 368 368 CD 40404 1302 2 ) ) -RRB- 40404 1302 3 . . . 40404 1303 1 [ [ -LRB- 40404 1303 2 Illustration illustration NN 40404 1303 3 : : : 40404 1303 4 Fig Fig NNP 40404 1303 5 . . . 40404 1304 1 71 71 CD 40404 1304 2 . . . 40404 1305 1 Cross Cross NNP 40404 1305 2 Section Section NNP 40404 1305 3 of of IN 40404 1305 4 a a DT 40404 1305 5 Flood Flood NNP 40404 1305 6 Plain Plain NNP 40404 1305 7 ] ] -RRB- 40404 1305 8 A a DT 40404 1305 9 cross cross NN 40404 1305 10 section section NN 40404 1305 11 of of IN 40404 1305 12 a a DT 40404 1305 13 flood flood NN 40404 1305 14 plain plain NN 40404 1305 15 ( ( -LRB- 40404 1305 16 Fig fig NN 40404 1305 17 . . . 40404 1306 1 71 71 LS 40404 1306 2 ) ) -RRB- 40404 1306 3 shows show VBZ 40404 1306 4 that that IN 40404 1306 5 it -PRON- PRP 40404 1306 6 is be VBZ 40404 1306 7 highest high JJS 40404 1306 8 next next IN 40404 1306 9 the the DT 40404 1306 10 river river NN 40404 1306 11 , , , 40404 1306 12 sloping slope VBG 40404 1306 13 gradually gradually RB 40404 1306 14 thence thence NN 40404 1306 15 to to IN 40404 1306 16 the the DT 40404 1306 17 valley valley NNP 40404 1306 18 sides side NNS 40404 1306 19 . . . 40404 1307 1 These these DT 40404 1307 2 wide wide JJ 40404 1307 3 natural natural JJ 40404 1307 4 embankments embankment NNS 40404 1307 5 are be VBP 40404 1307 6 due due JJ 40404 1307 7 to to IN 40404 1307 8 the the DT 40404 1307 9 fact fact NN 40404 1307 10 that that IN 40404 1307 11 the the DT 40404 1307 12 river river NN 40404 1307 13 deposit deposit NN 40404 1307 14 is be VBZ 40404 1307 15 heavier heavy JJR 40404 1307 16 near near IN 40404 1307 17 the the DT 40404 1307 18 bank bank NN 40404 1307 19 , , , 40404 1307 20 where where WRB 40404 1307 21 the the DT 40404 1307 22 velocity velocity NN 40404 1307 23 of of IN 40404 1307 24 the the DT 40404 1307 25 silt silt NN 40404 1307 26 - - HYPH 40404 1307 27 laden laden NNP 40404 1307 28 channel channel NNP 40404 1307 29 current current NN 40404 1307 30 is be VBZ 40404 1307 31 first first RB 40404 1307 32 checked check VBN 40404 1307 33 by by IN 40404 1307 34 contact contact NN 40404 1307 35 with with IN 40404 1307 36 the the DT 40404 1307 37 slower slow RBR 40404 1307 38 - - HYPH 40404 1307 39 moving move VBG 40404 1307 40 overflow overflow NN 40404 1307 41 . . . 40404 1308 1 [ [ -LRB- 40404 1308 2 Illustration illustration NN 40404 1308 3 : : : 40404 1308 4 Fig Fig NNP 40404 1308 5 . . . 40404 1309 1 72 72 CD 40404 1309 2 . . . 40404 1310 1 Waste waste NN 40404 1310 2 - - HYPH 40404 1310 3 filled fill VBN 40404 1310 4 Valley Valley NNP 40404 1310 5 and and CC 40404 1310 6 Braided Braided NNP 40404 1310 7 Channels Channels NNP 40404 1310 8 of of IN 40404 1310 9 the the DT 40404 1310 10 Upper Upper NNP 40404 1310 11 Mississippi Mississippi NNP 40404 1310 12 ] ] -RRB- 40404 1310 13 Thus thus RB 40404 1310 14 banked bank VBD 40404 1310 15 off off RP 40404 1310 16 from from IN 40404 1310 17 the the DT 40404 1310 18 stream stream NN 40404 1310 19 , , , 40404 1310 20 the the DT 40404 1310 21 outer outer JJ 40404 1310 22 portions portion NNS 40404 1310 23 of of IN 40404 1310 24 a a DT 40404 1310 25 flood flood NN 40404 1310 26 plain plain NN 40404 1310 27 are be VBP 40404 1310 28 often often RB 40404 1310 29 ill ill RB 40404 1310 30 - - HYPH 40404 1310 31 drained drain VBN 40404 1310 32 and and CC 40404 1310 33 swampy swampy JJ 40404 1310 34 , , , 40404 1310 35 and and CC 40404 1310 36 here here RB 40404 1310 37 vegetal vegetal JJ 40404 1310 38 deposits deposit NNS 40404 1310 39 , , , 40404 1310 40 such such JJ 40404 1310 41 as as IN 40404 1310 42 peat peat NN 40404 1310 43 , , , 40404 1310 44 may may MD 40404 1310 45 be be VB 40404 1310 46 interbedded interbedde VBN 40404 1310 47 with with IN 40404 1310 48 river river NN 40404 1310 49 silts silt NNS 40404 1310 50 . . . 40404 1311 1 A a DT 40404 1311 2 map map NN 40404 1311 3 of of IN 40404 1311 4 a a DT 40404 1311 5 wide wide JJ 40404 1311 6 flood flood NN 40404 1311 7 plain plain NN 40404 1311 8 , , , 40404 1311 9 such such JJ 40404 1311 10 as as IN 40404 1311 11 that that DT 40404 1311 12 of of IN 40404 1311 13 the the DT 40404 1311 14 Mississippi Mississippi NNP 40404 1311 15 or or CC 40404 1311 16 the the DT 40404 1311 17 Missouri Missouri NNP 40404 1311 18 ( ( -LRB- 40404 1311 19 Fig Fig NNP 40404 1311 20 . . . 40404 1312 1 77 77 CD 40404 1312 2 ) ) -RRB- 40404 1312 3 , , , 40404 1312 4 shows show VBZ 40404 1312 5 that that IN 40404 1312 6 the the DT 40404 1312 7 courses course NNS 40404 1312 8 of of IN 40404 1312 9 the the DT 40404 1312 10 tributaries tributary NNS 40404 1312 11 on on IN 40404 1312 12 entering enter VBG 40404 1312 13 it -PRON- PRP 40404 1312 14 are be VBP 40404 1312 15 deflected deflect VBN 40404 1312 16 downstream downstream JJ 40404 1312 17 . . . 40404 1313 1 Why why WRB 40404 1313 2 ? ? . 40404 1314 1 The the DT 40404 1314 2 aggrading aggrading NN 40404 1314 3 streams stream NNS 40404 1314 4 by by IN 40404 1314 5 which which WDT 40404 1314 6 flood flood NN 40404 1314 7 plains plain NNS 40404 1314 8 are be VBP 40404 1314 9 constructed construct VBN 40404 1314 10 gradually gradually RB 40404 1314 11 build build VB 40404 1314 12 their -PRON- PRP$ 40404 1314 13 immediate immediate JJ 40404 1314 14 banks bank NNS 40404 1314 15 and and CC 40404 1314 16 beds bed NNS 40404 1314 17 to to IN 40404 1314 18 higher high JJR 40404 1314 19 and and CC 40404 1314 20 higher high JJR 40404 1314 21 levels level NNS 40404 1314 22 , , , 40404 1314 23 and and CC 40404 1314 24 therefore therefore RB 40404 1314 25 find find VBP 40404 1314 26 it -PRON- PRP 40404 1314 27 easy easy JJ 40404 1314 28 at at IN 40404 1314 29 times time NNS 40404 1314 30 of of IN 40404 1314 31 great great JJ 40404 1314 32 floods flood NNS 40404 1314 33 to to TO 40404 1314 34 break break VB 40404 1314 35 their -PRON- PRP$ 40404 1314 36 natural natural JJ 40404 1314 37 embankments embankment NNS 40404 1314 38 and and CC 40404 1314 39 take take VB 40404 1314 40 new new JJ 40404 1314 41 courses course NNS 40404 1314 42 over over IN 40404 1314 43 the the DT 40404 1314 44 plain plain NN 40404 1314 45 . . . 40404 1315 1 In in IN 40404 1315 2 this this DT 40404 1315 3 way way NN 40404 1315 4 they -PRON- PRP 40404 1315 5 aggrade aggrade VBP 40404 1315 6 each each DT 40404 1315 7 portion portion NN 40404 1315 8 of of IN 40404 1315 9 it -PRON- PRP 40404 1315 10 in in IN 40404 1315 11 turn turn NN 40404 1315 12 by by IN 40404 1315 13 means mean NNS 40404 1315 14 of of IN 40404 1315 15 their -PRON- PRP$ 40404 1315 16 shifting shift VBG 40404 1315 17 channels channel NNS 40404 1315 18 . . . 40404 1316 1 = = NFP 40404 1316 2 Braided braid VBD 40404 1316 3 channels.= channels.= CD 40404 1316 4 A a DT 40404 1316 5 river river NN 40404 1316 6 actively actively RB 40404 1316 7 engaged engage VBD 40404 1316 8 in in IN 40404 1316 9 aggrading aggrade VBG 40404 1316 10 its -PRON- PRP$ 40404 1316 11 valley valley NN 40404 1316 12 with with IN 40404 1316 13 coarse coarse JJ 40404 1316 14 waste waste NN 40404 1316 15 builds build VBZ 40404 1316 16 a a DT 40404 1316 17 flood flood NN 40404 1316 18 plain plain NN 40404 1316 19 of of IN 40404 1316 20 comparatively comparatively RB 40404 1316 21 steep steep JJ 40404 1316 22 gradient gradient NN 40404 1316 23 and and CC 40404 1316 24 often often RB 40404 1316 25 flows flow VBZ 40404 1316 26 down down IN 40404 1316 27 it -PRON- PRP 40404 1316 28 in in IN 40404 1316 29 a a DT 40404 1316 30 fairly fairly RB 40404 1316 31 direct direct JJ 40404 1316 32 course course NN 40404 1316 33 and and CC 40404 1316 34 through through IN 40404 1316 35 a a DT 40404 1316 36 network network NN 40404 1316 37 of of IN 40404 1316 38 braided braided JJ 40404 1316 39 channels channel NNS 40404 1316 40 . . . 40404 1317 1 From from IN 40404 1317 2 time time NN 40404 1317 3 to to TO 40404 1317 4 time time NN 40404 1317 5 a a DT 40404 1317 6 channel channel NN 40404 1317 7 becomes become VBZ 40404 1317 8 choked choke VBN 40404 1317 9 with with IN 40404 1317 10 waste waste NN 40404 1317 11 , , , 40404 1317 12 and and CC 40404 1317 13 the the DT 40404 1317 14 water water NN 40404 1317 15 no no RB 40404 1317 16 longer long RBR 40404 1317 17 finding find VBG 40404 1317 18 room room NN 40404 1317 19 in in IN 40404 1317 20 it -PRON- PRP 40404 1317 21 breaks break VBZ 40404 1317 22 out out RP 40404 1317 23 and and CC 40404 1317 24 cuts cut VBZ 40404 1317 25 and and CC 40404 1317 26 builds build VBZ 40404 1317 27 itself -PRON- PRP 40404 1317 28 a a DT 40404 1317 29 new new JJ 40404 1317 30 way way NN 40404 1317 31 which which WDT 40404 1317 32 reunites reunite VBZ 40404 1317 33 down down RP 40404 1317 34 valley valley NN 40404 1317 35 with with IN 40404 1317 36 the the DT 40404 1317 37 other other JJ 40404 1317 38 channels channel NNS 40404 1317 39 . . . 40404 1318 1 Thus thus RB 40404 1318 2 there there EX 40404 1318 3 becomes become VBZ 40404 1318 4 established establish VBN 40404 1318 5 a a DT 40404 1318 6 network network NN 40404 1318 7 of of IN 40404 1318 8 ever ever RB 40404 1318 9 - - HYPH 40404 1318 10 changing change VBG 40404 1318 11 channels channel NNS 40404 1318 12 inclosing inclose VBG 40404 1318 13 low low JJ 40404 1318 14 islands island NNS 40404 1318 15 of of IN 40404 1318 16 sand sand NN 40404 1318 17 and and CC 40404 1318 18 gravel gravel NN 40404 1318 19 . . . 40404 1319 1 [ [ -LRB- 40404 1319 2 Illustration illustration NN 40404 1319 3 : : : 40404 1319 4 Fig Fig NNP 40404 1319 5 . . . 40404 1320 1 73 73 CD 40404 1320 2 . . . 40404 1321 1 Terraced Terraced NNP 40404 1321 2 Valley Valley NNP 40404 1321 3 of of IN 40404 1321 4 River River NNP 40404 1321 5 in in IN 40404 1321 6 Central Central NNP 40404 1321 7 Asia Asia NNP 40404 1321 8 ] ] -RRB- 40404 1321 9 [ [ -LRB- 40404 1321 10 Illustration illustration NN 40404 1321 11 : : : 40404 1321 12 Fig Fig NNP 40404 1321 13 . . . 40404 1322 1 74 74 CD 40404 1322 2 . . . 40404 1323 1 Terraces terrace NNS 40404 1323 2 carved carve VBN 40404 1323 3 in in IN 40404 1323 4 Alluvial Alluvial NNP 40404 1323 5 Deposits Deposits NNPS 40404 1323 6 ] ] -RRB- 40404 1323 7 Which which WDT 40404 1323 8 is be VBZ 40404 1323 9 older old JJR 40404 1323 10 , , , 40404 1323 11 the the DT 40404 1323 12 rock rock NN 40404 1323 13 floor floor NN 40404 1323 14 of of IN 40404 1323 15 the the DT 40404 1323 16 valley valley NN 40404 1323 17 or or CC 40404 1323 18 the the DT 40404 1323 19 river river NN 40404 1323 20 deposits deposit NNS 40404 1323 21 which which WDT 40404 1323 22 fill fill VBP 40404 1323 23 it -PRON- PRP 40404 1323 24 ? ? . 40404 1324 1 What what WP 40404 1324 2 are be VBP 40404 1324 3 the the DT 40404 1324 4 relative relative JJ 40404 1324 5 ages age NNS 40404 1324 6 of of IN 40404 1324 7 terraces terrace NNS 40404 1324 8 _ _ NNP 40404 1324 9 a a DT 40404 1324 10 _ _ NNP 40404 1324 11 , , , 40404 1324 12 _ _ NNP 40404 1324 13 b b NNP 40404 1324 14 _ _ NNP 40404 1324 15 , , , 40404 1324 16 _ _ NNP 40404 1324 17 c c NNP 40404 1324 18 _ _ NNP 40404 1324 19 , , , 40404 1324 20 and and CC 40404 1324 21 _ _ NNP 40404 1324 22 e e NNP 40404 1324 23 _ _ NNP 40404 1324 24 ? ? . 40404 1325 1 It -PRON- PRP 40404 1325 2 will will MD 40404 1325 3 be be VB 40404 1325 4 noted note VBN 40404 1325 5 that that IN 40404 1325 6 the the DT 40404 1325 7 remnants remnant NNS 40404 1325 8 of of IN 40404 1325 9 the the DT 40404 1325 10 higher high JJR 40404 1325 11 flood flood NN 40404 1325 12 plains plain NNS 40404 1325 13 have have VBP 40404 1325 14 not not RB 40404 1325 15 been be VBN 40404 1325 16 swept sweep VBN 40404 1325 17 away away RB 40404 1325 18 by by IN 40404 1325 19 the the DT 40404 1325 20 meandering meander VBG 40404 1325 21 river river NNP 40404 1325 22 , , , 40404 1325 23 as as IN 40404 1325 24 it -PRON- PRP 40404 1325 25 swung swing VBD 40404 1325 26 from from IN 40404 1325 27 side side NN 40404 1325 28 to to IN 40404 1325 29 side side NN 40404 1325 30 of of IN 40404 1325 31 the the DT 40404 1325 32 valley valley NN 40404 1325 33 at at IN 40404 1325 34 lower low JJR 40404 1325 35 levels level NNS 40404 1325 36 , , , 40404 1325 37 because because IN 40404 1325 38 they -PRON- PRP 40404 1325 39 have have VBP 40404 1325 40 been be VBN 40404 1325 41 defended defend VBN 40404 1325 42 by by IN 40404 1325 43 ledges ledge NNS 40404 1325 44 of of IN 40404 1325 45 hard hard JJ 40404 1325 46 rock rock NN 40404 1325 47 in in IN 40404 1325 48 the the DT 40404 1325 49 projecting projecting NN 40404 1325 50 spurs spur NNS 40404 1325 51 of of IN 40404 1325 52 the the DT 40404 1325 53 initial initial JJ 40404 1325 54 valley valley NN 40404 1325 55 . . . 40404 1326 1 The the DT 40404 1326 2 stream stream NN 40404 1326 3 has have VBZ 40404 1326 4 encountered encounter VBN 40404 1326 5 such such JJ 40404 1326 6 defending defend VBG 40404 1326 7 ledges ledge NNS 40404 1326 8 at at IN 40404 1326 9 the the DT 40404 1326 10 point point NN 40404 1326 11 marked mark VBN 40404 1326 12 _ _ NNP 40404 1326 13 d d NNP 40404 1326 14 _ _ NNP 40404 1326 15 ] ] -RRB- 40404 1326 16 [ [ -LRB- 40404 1326 17 Illustration illustration NN 40404 1326 18 : : : 40404 1326 19 Fig Fig NNP 40404 1326 20 . . . 40404 1327 1 75 75 CD 40404 1327 2 . . . 40404 1328 1 River River NNP 40404 1328 2 Terraces Terraces NNP 40404 1328 3 of of IN 40404 1328 4 Rock Rock NNP 40404 1328 5 covered cover VBN 40404 1328 6 with with IN 40404 1328 7 Alluvium Alluvium NNP 40404 1328 8 _ _ NNP 40404 1328 9 c c NNP 40404 1328 10 _ _ NNP 40404 1328 11 , , , 40404 1328 12 recent recent JJ 40404 1328 13 flood flood NN 40404 1328 14 plain plain NN 40404 1328 15 of of IN 40404 1328 16 the the DT 40404 1328 17 river river NN 40404 1328 18 . . . 40404 1329 1 To to IN 40404 1329 2 what what WDT 40404 1329 3 processes process VBZ 40404 1329 4 is be VBZ 40404 1329 5 it -PRON- PRP 40404 1329 6 due due JJ 40404 1329 7 ? ? . 40404 1330 1 Account account NN 40404 1330 2 for for IN 40404 1330 3 the the DT 40404 1330 4 alluvium alluvium NN 40404 1330 5 at at IN 40404 1330 6 _ _ NNP 40404 1330 7 a a DT 40404 1330 8 _ _ NNP 40404 1330 9 and and CC 40404 1330 10 _ _ NNP 40404 1330 11 b b NNP 40404 1330 12 _ _ NNP 40404 1330 13 and and CC 40404 1330 14 on on IN 40404 1330 15 the the DT 40404 1330 16 opposite opposite JJ 40404 1330 17 side side NN 40404 1330 18 of of IN 40404 1330 19 the the DT 40404 1330 20 valley valley NN 40404 1330 21 at at IN 40404 1330 22 the the DT 40404 1330 23 same same JJ 40404 1330 24 levels level NNS 40404 1330 25 . . . 40404 1331 1 Which which WDT 40404 1331 2 is be VBZ 40404 1331 3 the the DT 40404 1331 4 older old JJR 40404 1331 5 ? ? . 40404 1332 1 Account account NN 40404 1332 2 for for IN 40404 1332 3 the the DT 40404 1332 4 flat flat JJ 40404 1332 5 rock rock NN 40404 1332 6 floors floor NNS 40404 1332 7 on on IN 40404 1332 8 which which WDT 40404 1332 9 these these DT 40404 1332 10 deposits deposit NNS 40404 1332 11 of of IN 40404 1332 12 alluvium alluvium NN 40404 1332 13 rest rest NN 40404 1332 14 . . . 40404 1333 1 Give give VB 40404 1333 2 the the DT 40404 1333 3 entire entire JJ 40404 1333 4 history history NN 40404 1333 5 which which WDT 40404 1333 6 may may MD 40404 1333 7 be be VB 40404 1333 8 read read VBN 40404 1333 9 in in IN 40404 1333 10 the the DT 40404 1333 11 section section NN 40404 1333 12 ] ] -RRB- 40404 1333 13 = = NFP 40404 1333 14 Terraces.= Terraces.= NNP 40404 1333 15 While while IN 40404 1333 16 aggrading aggrade VBG 40404 1333 17 streams stream NNS 40404 1333 18 thus thus RB 40404 1333 19 tend tend VBP 40404 1333 20 to to TO 40404 1333 21 shift shift VB 40404 1333 22 their -PRON- PRP$ 40404 1333 23 channels channel NNS 40404 1333 24 , , , 40404 1333 25 degrading degrading JJ 40404 1333 26 streams stream NNS 40404 1333 27 , , , 40404 1333 28 on on IN 40404 1333 29 the the DT 40404 1333 30 contrary contrary NN 40404 1333 31 , , , 40404 1333 32 become become VBP 40404 1333 33 more more RBR 40404 1333 34 and and CC 40404 1333 35 more more RBR 40404 1333 36 deeply deeply RB 40404 1333 37 intrenched intrenched JJ 40404 1333 38 in in IN 40404 1333 39 their -PRON- PRP$ 40404 1333 40 valleys valley NNS 40404 1333 41 . . . 40404 1334 1 It -PRON- PRP 40404 1334 2 often often RB 40404 1334 3 occurs occur VBZ 40404 1334 4 that that IN 40404 1334 5 a a DT 40404 1334 6 stream stream NN 40404 1334 7 , , , 40404 1334 8 after after IN 40404 1334 9 having have VBG 40404 1334 10 built build VBN 40404 1334 11 a a DT 40404 1334 12 flood flood NN 40404 1334 13 plain plain NN 40404 1334 14 , , , 40404 1334 15 ceases cease VBZ 40404 1334 16 to to TO 40404 1334 17 aggrade aggrade VB 40404 1334 18 its -PRON- PRP$ 40404 1334 19 bed bed NN 40404 1334 20 because because IN 40404 1334 21 of of IN 40404 1334 22 a a DT 40404 1334 23 lessened lessened JJ 40404 1334 24 load load NN 40404 1334 25 or or CC 40404 1334 26 for for IN 40404 1334 27 other other JJ 40404 1334 28 reasons reason NNS 40404 1334 29 , , , 40404 1334 30 such such JJ 40404 1334 31 as as IN 40404 1334 32 an an DT 40404 1334 33 uplift uplift NN 40404 1334 34 of of IN 40404 1334 35 the the DT 40404 1334 36 region region NN 40404 1334 37 , , , 40404 1334 38 and and CC 40404 1334 39 begins begin VBZ 40404 1334 40 instead instead RB 40404 1334 41 to to TO 40404 1334 42 degrade degrade VB 40404 1334 43 it -PRON- PRP 40404 1334 44 . . . 40404 1335 1 It -PRON- PRP 40404 1335 2 leaves leave VBZ 40404 1335 3 the the DT 40404 1335 4 original original JJ 40404 1335 5 flood flood NN 40404 1335 6 plain plain JJ 40404 1335 7 out out IN 40404 1335 8 of of IN 40404 1335 9 reach reach NN 40404 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40404 1336 32 or or CC 40404 1336 33 both both DT 40404 1336 34 sides side NNS 40404 1336 35 of of IN 40404 1336 36 the the DT 40404 1336 37 valley valley NN 40404 1336 38 . . . 40404 1337 1 In in IN 40404 1337 2 this this DT 40404 1337 3 way way NN 40404 1337 4 a a DT 40404 1337 5 valley valley NN 40404 1337 6 may may MD 40404 1337 7 be be VB 40404 1337 8 lined line VBN 40404 1337 9 with with IN 40404 1337 10 a a DT 40404 1337 11 succession succession NN 40404 1337 12 of of IN 40404 1337 13 terraces terrace NNS 40404 1337 14 at at IN 40404 1337 15 different different JJ 40404 1337 16 levels level NNS 40404 1337 17 , , , 40404 1337 18 each each DT 40404 1337 19 level level NN 40404 1337 20 representing represent VBG 40404 1337 21 an an DT 40404 1337 22 abandoned abandon VBN 40404 1337 23 flood flood NN 40404 1337 24 plain plain NN 40404 1337 25 . . . 40404 1338 1 [ [ -LRB- 40404 1338 2 Illustration illustration NN 40404 1338 3 : : : 40404 1338 4 Fig Fig NNP 40404 1338 5 . . . 40404 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37 fine fine JJ 40404 1340 38 waste waste NN 40404 1340 39 form form NN 40404 1340 40 well well JJ 40404 1340 41 - - HYPH 40404 1340 42 nigh nigh JJ 40404 1340 43 level level NN 40404 1340 44 plains plain NNS 40404 1340 45 over over IN 40404 1340 46 which which WDT 40404 1340 47 streams stream VBZ 40404 1340 48 wind wind NN 40404 1340 49 from from IN 40404 1340 50 side side NN 40404 1340 51 to to IN 40404 1340 52 side side NN 40404 1340 53 of of IN 40404 1340 54 a a DT 40404 1340 55 direct direct JJ 40404 1340 56 course course NN 40404 1340 57 in in IN 40404 1340 58 symmetric symmetric JJ 40404 1340 59 bends bend NNS 40404 1340 60 known know VBN 40404 1340 61 as as IN 40404 1340 62 meanders meander NNS 40404 1340 63 , , , 40404 1340 64 from from IN 40404 1340 65 the the DT 40404 1340 66 name name NN 40404 1340 67 of of IN 40404 1340 68 a a DT 40404 1340 69 winding wind VBG 40404 1340 70 river river NN 40404 1340 71 of of IN 40404 1340 72 Asia Asia NNP 40404 1340 73 Minor Minor NNP 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On on IN 40404 1342 2 the the DT 40404 1342 3 flood flood NN 40404 1342 4 plain plain NN 40404 1342 5 of of IN 40404 1342 6 either either DT 40404 1342 7 river river NN 40404 1342 8 or or CC 40404 1342 9 creek creek VBP 40404 1342 10 we -PRON- PRP 40404 1342 11 may may MD 40404 1342 12 find find VB 40404 1342 13 examples example NNS 40404 1342 14 of of IN 40404 1342 15 the the DT 40404 1342 16 successive successive JJ 40404 1342 17 stages stage NNS 40404 1342 18 in in IN 40404 1342 19 the the DT 40404 1342 20 development development NN 40404 1342 21 of of IN 40404 1342 22 the the DT 40404 1342 23 meander meander NN 40404 1342 24 , , , 40404 1342 25 from from IN 40404 1342 26 its -PRON- PRP$ 40404 1342 27 beginning beginning NN 40404 1342 28 in in IN 40404 1342 29 the the DT 40404 1342 30 slight slight JJ 40404 1342 31 initial initial JJ 40404 1342 32 bend bend NN 40404 1342 33 sufficient sufficient JJ 40404 1342 34 to to TO 40404 1342 35 deflect deflect VB 40404 1342 36 the the DT 40404 1342 37 current current NN 40404 1342 38 against against IN 40404 1342 39 the the DT 40404 1342 40 outer outer JJ 40404 1342 41 side side NN 40404 1342 42 . . . 40404 1343 1 Eroding erode VBG 40404 1343 2 here here RB 40404 1343 3 and and CC 40404 1343 4 depositing depositing NN 40404 1343 5 on on IN 40404 1343 6 the the DT 40404 1343 7 inner inner JJ 40404 1343 8 side side NN 40404 1343 9 of of IN 40404 1343 10 the the DT 40404 1343 11 bend bend NN 40404 1343 12 , , , 40404 1343 13 it -PRON- PRP 40404 1343 14 gradually gradually RB 40404 1343 15 reaches reach VBZ 40404 1343 16 first first RB 40404 1343 17 the the DT 40404 1343 18 open open JJ 40404 1343 19 bend bend NN 40404 1343 20 ( ( -LRB- 40404 1343 21 Fig fig NN 40404 1343 22 . . . 40404 1344 1 76 76 CD 40404 1344 2 , , , 40404 1344 3 _ _ NNP 40404 1344 4 a a DT 40404 1344 5 _ _ NNP 40404 1344 6 ) ) -RRB- 40404 1344 7 whose whose WP$ 40404 1344 8 width width NN 40404 1344 9 and and CC 40404 1344 10 length length NN 40404 1344 11 are be VBP 40404 1344 12 not not RB 40404 1344 13 far far RB 40404 1344 14 from from IN 40404 1344 15 equal equal JJ 40404 1344 16 , , , 40404 1344 17 and and CC 40404 1344 18 later later RB 40404 1344 19 that that DT 40404 1344 20 of of IN 40404 1344 21 the the DT 40404 1344 22 horseshoe horseshoe NNP 40404 1344 23 meander meander NNP 40404 1344 24 ( ( -LRB- 40404 1344 25 Fig fig NN 40404 1344 26 . . . 40404 1345 1 76 76 CD 40404 1345 2 , , , 40404 1345 3 _ _ NNP 40404 1345 4 b b NNP 40404 1345 5 _ _ NNP 40404 1345 6 ) ) -RRB- 40404 1345 7 whose whose WP$ 40404 1345 8 diameter diameter NN 40404 1345 9 transverse transverse NN 40404 1345 10 to to IN 40404 1345 11 the the DT 40404 1345 12 course course NN 40404 1345 13 of of IN 40404 1345 14 the the DT 40404 1345 15 stream stream NN 40404 1345 16 is be VBZ 40404 1345 17 much much RB 40404 1345 18 greater great JJR 40404 1345 19 than than IN 40404 1345 20 that that DT 40404 1345 21 parallel parallel NN 40404 1345 22 with with IN 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silted silt VBN 40404 1347 7 up up RP 40404 1347 8 at at IN 40404 1347 9 both both DT 40404 1347 10 ends end NNS 40404 1347 11 and and CC 40404 1347 12 becomes become VBZ 40404 1347 13 a a DT 40404 1347 14 crescentic crescentic JJ 40404 1347 15 lagoon lagoon NN 40404 1347 16 ( ( -LRB- 40404 1347 17 Fig fig NN 40404 1347 18 . . . 40404 1348 1 76 76 CD 40404 1348 2 , , , 40404 1348 3 _ _ NNP 40404 1348 4 c c NNP 40404 1348 5 _ _ NNP 40404 1348 6 ) ) -RRB- 40404 1348 7 , , , 40404 1348 8 or or CC 40404 1348 9 oxbow oxbow NNP 40404 1348 10 lake lake NNP 40404 1348 11 , , , 40404 1348 12 which which WDT 40404 1348 13 fills fill VBZ 40404 1348 14 gradually gradually RB 40404 1348 15 to to IN 40404 1348 16 an an DT 40404 1348 17 arc arc NN 40404 1348 18 - - HYPH 40404 1348 19 shaped shape VBN 40404 1348 20 shallow shallow JJ 40404 1348 21 depression depression NN 40404 1348 22 . . . 40404 1349 1 [ [ -LRB- 40404 1349 2 Illustration illustration NN 40404 1349 3 : : : 40404 1349 4 Fig Fig NNP 40404 1349 5 . . . 40404 1350 1 77 77 CD 40404 1350 2 . . . 40404 1351 1 Map Map NNP 40404 1351 2 of of IN 40404 1351 3 a a DT 40404 1351 4 portion portion NN 40404 1351 5 of of IN 40404 1351 6 the the DT 40404 1351 7 Flood Flood NNP 40404 1351 8 Plain Plain NNP 40404 1351 9 of of IN 40404 1351 10 the the DT 40404 1351 11 Missouri Missouri NNP 40404 1351 12 River River NNP 40404 1351 13 Each each DT 40404 1351 14 small small JJ 40404 1351 15 square square NN 40404 1351 16 represents represent VBZ 40404 1351 17 one one CD 40404 1351 18 square square JJ 40404 1351 19 mile mile NN 40404 1351 20 . . . 40404 1352 1 How how WRB 40404 1352 2 wide wide JJ 40404 1352 3 is be VBZ 40404 1352 4 the the DT 40404 1352 5 flood flood NN 40404 1352 6 plain plain NN 40404 1352 7 of of IN 40404 1352 8 the the DT 40404 1352 9 Missouri Missouri NNP 40404 1352 10 ? ? . 40404 1353 1 How how WRB 40404 1353 2 wide wide JJ 40404 1353 3 is be VBZ 40404 1353 4 the the DT 40404 1353 5 flood flood NN 40404 1353 6 plain plain NN 40404 1353 7 of of IN 40404 1353 8 the the DT 40404 1353 9 Big Big NNP 40404 1353 10 Sioux Sioux NNP 40404 1353 11 ? ? . 40404 1354 1 Why why WRB 40404 1354 2 is be VBZ 40404 1354 3 the the DT 40404 1354 4 latter latter JJ 40404 1354 5 river river NN 40404 1354 6 deflected deflect VBD 40404 1354 7 down down RP 40404 1354 8 valley valley NNP 40404 1354 9 on on IN 40404 1354 10 entering enter VBG 40404 1354 11 the the DT 40404 1354 12 flood flood NN 40404 1354 13 plain plain NN 40404 1354 14 of of IN 40404 1354 15 the the DT 40404 1354 16 master master NN 40404 1354 17 stream stream NN 40404 1354 18 ? ? . 40404 1355 1 How how WRB 40404 1355 2 do do VBP 40404 1355 3 the the DT 40404 1355 4 meanders meander NNS 40404 1355 5 of of IN 40404 1355 6 the the DT 40404 1355 7 two two CD 40404 1355 8 rivers river NNS 40404 1355 9 compare compare VBP 40404 1355 10 in in IN 40404 1355 11 size size NN 40404 1355 12 ? ? . 40404 1356 1 How how WRB 40404 1356 2 does do VBZ 40404 1356 3 the the DT 40404 1356 4 width width NN 40404 1356 5 of of IN 40404 1356 6 each each DT 40404 1356 7 flood flood NN 40404 1356 8 plain plain NN 40404 1356 9 compare compare VBP 40404 1356 10 with with IN 40404 1356 11 the the DT 40404 1356 12 width width NN 40404 1356 13 of of IN 40404 1356 14 the the DT 40404 1356 15 belt belt NN 40404 1356 16 occupied occupy VBN 40404 1356 17 by by IN 40404 1356 18 the the DT 40404 1356 19 meanders meander NNS 40404 1356 20 of of IN 40404 1356 21 the the DT 40404 1356 22 river river NN 40404 1356 23 ? ? . 40404 1357 1 Do do VBP 40404 1357 2 you -PRON- PRP 40404 1357 3 find find VB 40404 1357 4 traces trace NNS 40404 1357 5 of of IN 40404 1357 6 any any DT 40404 1357 7 former former JJ 40404 1357 8 channels channel NNS 40404 1357 9 ? ? . 40404 1357 10 ] ] -RRB- 40404 1358 1 = = NFP 40404 1358 2 Flood flood NN 40404 1358 3 plains plain VBZ 40404 1358 4 characteristic characteristic JJ 40404 1358 5 of of IN 40404 1358 6 mature mature JJ 40404 1358 7 rivers.= rivers.= NNS 40404 1358 8 On on IN 40404 1358 9 reaching reach VBG 40404 1358 10 grade grade NN 40404 1358 11 a a DT 40404 1358 12 stream stream NN 40404 1358 13 planes plane VBZ 40404 1358 14 a a DT 40404 1358 15 flat flat JJ 40404 1358 16 floor floor NN 40404 1358 17 for for IN 40404 1358 18 its -PRON- PRP$ 40404 1358 19 continually continually RB 40404 1358 20 widening widen VBG 40404 1358 21 valley valley NN 40404 1358 22 . . . 40404 1359 1 Ever ever RB 40404 1359 2 cutting cut VBG 40404 1359 3 on on IN 40404 1359 4 the the DT 40404 1359 5 outer outer JJ 40404 1359 6 bank bank NN 40404 1359 7 of of IN 40404 1359 8 its -PRON- PRP$ 40404 1359 9 curves curve NNS 40404 1359 10 , , , 40404 1359 11 it -PRON- PRP 40404 1359 12 deposits deposit VBZ 40404 1359 13 on on IN 40404 1359 14 the the DT 40404 1359 15 inner inner JJ 40404 1359 16 bank bank NN 40404 1359 17 scroll scroll NN 40404 1359 18 - - HYPH 40404 1359 19 like like JJ 40404 1359 20 flood flood NN 40404 1359 21 - - HYPH 40404 1359 22 plain plain NN 40404 1359 23 patches patch NNS 40404 1359 24 ( ( -LRB- 40404 1359 25 Fig Fig NNP 40404 1359 26 60 60 CD 40404 1359 27 ) ) -RRB- 40404 1359 28 . . . 40404 1360 1 For for IN 40404 1360 2 a a DT 40404 1360 3 while while NN 40404 1360 4 the the DT 40404 1360 5 valley valley NNP 40404 1360 6 bluffs bluff NNS 40404 1360 7 do do VBP 40404 1360 8 not not RB 40404 1360 9 give give VB 40404 1360 10 its -PRON- PRP$ 40404 1360 11 growing grow VBG 40404 1360 12 meanders meander NNS 40404 1360 13 room room NN 40404 1360 14 to to TO 40404 1360 15 develop develop VB 40404 1360 16 to to IN 40404 1360 17 their -PRON- PRP$ 40404 1360 18 normal normal JJ 40404 1360 19 size size NN 40404 1360 20 , , , 40404 1360 21 but but CC 40404 1360 22 as as IN 40404 1360 23 planation planation NN 40404 1360 24 goes go VBZ 40404 1360 25 on on RP 40404 1360 26 , , , 40404 1360 27 the the DT 40404 1360 28 bluffs bluff NNS 40404 1360 29 are be VBP 40404 1360 30 driven drive VBN 40404 1360 31 back back RB 40404 1360 32 to to IN 40404 1360 33 the the DT 40404 1360 34 full full JJ 40404 1360 35 width width NN 40404 1360 36 of of IN 40404 1360 37 the the DT 40404 1360 38 meander meander NNP 40404 1360 39 belt belt NNP 40404 1360 40 and and CC 40404 1360 41 still still RB 40404 1360 42 later later RB 40404 1360 43 to to IN 40404 1360 44 a a DT 40404 1360 45 width width NN 40404 1360 46 which which WDT 40404 1360 47 gives give VBZ 40404 1360 48 room room NN 40404 1360 49 for for IN 40404 1360 50 broad broad JJ 40404 1360 51 stretches stretch NNS 40404 1360 52 of of IN 40404 1360 53 flood flood NN 40404 1360 54 plain plain JJ 40404 1360 55 on on IN 40404 1360 56 either either DT 40404 1360 57 side side NN 40404 1360 58 ( ( -LRB- 40404 1360 59 Fig fig NN 40404 1360 60 . . . 40404 1361 1 77 77 CD 40404 1361 2 ) ) -RRB- 40404 1361 3 . . . 40404 1362 1 Usually usually RB 40404 1362 2 a a DT 40404 1362 3 river river NN 40404 1362 4 first first RB 40404 1362 5 attains attain VBZ 40404 1362 6 grade grade NN 40404 1362 7 near near IN 40404 1362 8 its -PRON- PRP$ 40404 1362 9 mouth mouth NN 40404 1362 10 , , , 40404 1362 11 and and CC 40404 1362 12 here here RB 40404 1362 13 first first RB 40404 1362 14 sinks sink VBZ 40404 1362 15 its -PRON- PRP$ 40404 1362 16 bed bed NN 40404 1362 17 to to IN 40404 1362 18 near near JJ 40404 1362 19 baselevel baselevel NN 40404 1362 20 . . . 40404 1363 1 Extending extend VBG 40404 1363 2 its -PRON- PRP$ 40404 1363 3 graded grade VBN 40404 1363 4 course course NN 40404 1363 5 upstream upstream RB 40404 1363 6 by by IN 40404 1363 7 cutting cut VBG 40404 1363 8 away away RP 40404 1363 9 barrier barrier NN 40404 1363 10 after after IN 40404 1363 11 barrier barrier NN 40404 1363 12 , , , 40404 1363 13 it -PRON- PRP 40404 1363 14 comes come VBZ 40404 1363 15 to to TO 40404 1363 16 have have VB 40404 1363 17 a a DT 40404 1363 18 widened widened JJ 40404 1363 19 and and CC 40404 1363 20 mature mature VB 40404 1363 21 valley valley NN 40404 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20 on on RP 40404 1364 21 to to IN 40404 1364 22 the the DT 40404 1364 23 sea sea NN 40404 1364 24 , , , 40404 1364 25 and and CC 40404 1364 26 here here RB 40404 1364 27 it -PRON- PRP 40404 1364 28 aggrades aggrade VBZ 40404 1364 29 its -PRON- PRP$ 40404 1364 30 bed bed NN 40404 1364 31 and and CC 40404 1364 32 builds build VBZ 40404 1364 33 a a DT 40404 1364 34 flood flood NN 40404 1364 35 plain plain JJ 40404 1364 36 in in IN 40404 1364 37 order order NN 40404 1364 38 to to TO 40404 1364 39 gain gain VB 40404 1364 40 a a DT 40404 1364 41 steeper steeper NN 40404 1364 42 gradient gradient NN 40404 1364 43 and and CC 40404 1364 44 velocity velocity NN 40404 1364 45 enough enough RB 40404 1364 46 to to TO 40404 1364 47 transport transport VB 40404 1364 48 its -PRON- PRP$ 40404 1364 49 load load NN 40404 1364 50 . . . 40404 1365 1 As as IN 40404 1365 2 maturity maturity NN 40404 1365 3 is be VBZ 40404 1365 4 past past JJ 40404 1365 5 and and CC 40404 1365 6 the the DT 40404 1365 7 relief relief NN 40404 1365 8 of of IN 40404 1365 9 the the DT 40404 1365 10 land land NN 40404 1365 11 is be VBZ 40404 1365 12 lessened lessen VBN 40404 1365 13 , , , 40404 1365 14 a a DT 40404 1365 15 smaller small JJR 40404 1365 16 and and CC 40404 1365 17 smaller small JJR 40404 1365 18 load load NN 40404 1365 19 of of IN 40404 1365 20 waste waste NN 40404 1365 21 is be VBZ 40404 1365 22 delivered deliver VBN 40404 1365 23 to to IN 40404 1365 24 the the DT 40404 1365 25 river river NN 40404 1365 26 . . . 40404 1366 1 It -PRON- PRP 40404 1366 2 now now RB 40404 1366 3 has have VBZ 40404 1366 4 energy energy NN 40404 1366 5 to to TO 40404 1366 6 spare spare VB 40404 1366 7 and and CC 40404 1366 8 again again RB 40404 1366 9 degrades degrade VBZ 40404 1366 10 its -PRON- PRP$ 40404 1366 11 valley valley NN 40404 1366 12 , , , 40404 1366 13 excavating excavate VBG 40404 1366 14 its -PRON- PRP$ 40404 1366 15 former former JJ 40404 1366 16 flood flood NN 40404 1366 17 plains plain NNS 40404 1366 18 and and CC 40404 1366 19 leaving leave VBG 40404 1366 20 them -PRON- PRP 40404 1366 21 in in IN 40404 1366 22 terraces terrace NNS 40404 1366 23 on on IN 40404 1366 24 either either DT 40404 1366 25 side side NN 40404 1366 26 , , , 40404 1366 27 and and CC 40404 1366 28 at at IN 40404 1366 29 last last RB 40404 1366 30 in in IN 40404 1366 31 its -PRON- PRP$ 40404 1366 32 old old JJ 40404 1366 33 age age NN 40404 1366 34 sweeping sweep VBG 40404 1366 35 them -PRON- PRP 40404 1366 36 away away RB 40404 1366 37 . . . 40404 1367 1 [ [ -LRB- 40404 1367 2 Illustration illustration NN 40404 1367 3 : : : 40404 1367 4 Fig Fig NNP 40404 1367 5 . . . 40404 1368 1 78 78 CD 40404 1368 2 . . . 40404 1369 1 Alluvial Alluvial NNP 40404 1369 2 Cones Cones NNPS 40404 1369 3 , , , 40404 1369 4 Wyoming Wyoming NNP 40404 1369 5 ] ] -RRB- 40404 1369 6 = = SYM 40404 1369 7 Alluvial alluvial JJ 40404 1369 8 cones cone NNS 40404 1369 9 and and CC 40404 1369 10 fans.= fans.= NNS 40404 1369 11 In in IN 40404 1369 12 hilly hilly JJ 40404 1369 13 and and CC 40404 1369 14 mountainous mountainous JJ 40404 1369 15 countries country NNS 40404 1369 16 one one CD 40404 1369 17 often often RB 40404 1369 18 sees see VBZ 40404 1369 19 on on IN 40404 1369 20 a a DT 40404 1369 21 valley valley NN 40404 1369 22 side side NN 40404 1369 23 a a DT 40404 1369 24 conical conical JJ 40404 1369 25 or or CC 40404 1369 26 fan fan NN 40404 1369 27 - - HYPH 40404 1369 28 shaped shape VBN 40404 1369 29 deposit deposit NN 40404 1369 30 of of IN 40404 1369 31 waste waste NN 40404 1369 32 at at IN 40404 1369 33 the the DT 40404 1369 34 mouth mouth NN 40404 1369 35 of of IN 40404 1369 36 a a DT 40404 1369 37 lateral lateral JJ 40404 1369 38 stream stream NN 40404 1369 39 . . . 40404 1370 1 The the DT 40404 1370 2 cause cause NN 40404 1370 3 is be VBZ 40404 1370 4 obvious obvious JJ 40404 1370 5 : : : 40404 1370 6 the the DT 40404 1370 7 young young JJ 40404 1370 8 branch branch NN 40404 1370 9 has have VBZ 40404 1370 10 not not RB 40404 1370 11 been be VBN 40404 1370 12 able able JJ 40404 1370 13 as as IN 40404 1370 14 yet yet RB 40404 1370 15 to to TO 40404 1370 16 wear wear VB 40404 1370 17 its -PRON- PRP$ 40404 1370 18 bed bed NN 40404 1370 19 to to IN 40404 1370 20 accordant accordant JJ 40404 1370 21 level level NN 40404 1370 22 with with IN 40404 1370 23 the the DT 40404 1370 24 already already RB 40404 1370 25 deepened deepen VBN 40404 1370 26 valley valley NNP 40404 1370 27 of of IN 40404 1370 28 the the DT 40404 1370 29 master master NN 40404 1370 30 stream stream NN 40404 1370 31 . . . 40404 1371 1 It -PRON- PRP 40404 1371 2 therefore therefore RB 40404 1371 3 builds build VBZ 40404 1371 4 its -PRON- PRP$ 40404 1371 5 bed bed NN 40404 1371 6 to to TO 40404 1371 7 grade grade VB 40404 1371 8 at at IN 40404 1371 9 the the DT 40404 1371 10 point point NN 40404 1371 11 of of IN 40404 1371 12 juncture juncture NN 40404 1371 13 by by IN 40404 1371 14 depositing deposit VBG 40404 1371 15 here here RB 40404 1371 16 its -PRON- PRP$ 40404 1371 17 load load NN 40404 1371 18 of of IN 40404 1371 19 waste,--a waste,--a NNP 40404 1371 20 load load NN 40404 1371 21 too too RB 40404 1371 22 heavy heavy JJ 40404 1371 23 to to TO 40404 1371 24 be be VB 40404 1371 25 carried carry VBN 40404 1371 26 along along IN 40404 1371 27 the the DT 40404 1371 28 more more RBR 40404 1371 29 gentle gentle JJ 40404 1371 30 profile profile NN 40404 1371 31 of of IN 40404 1371 32 the the DT 40404 1371 33 trunk trunk NN 40404 1371 34 valley valley NN 40404 1371 35 . . . 40404 1372 1 [ [ -LRB- 40404 1372 2 Illustration illustration NN 40404 1372 3 : : : 40404 1372 4 Fig Fig NNP 40404 1372 5 . . . 40404 1373 1 79 79 CD 40404 1373 2 . . . 40404 1374 1 Tributaries Tributaries NNPS 40404 1374 2 and and CC 40404 1374 3 Distributaries Distributaries NNPS 40404 1374 4 of of IN 40404 1374 5 a a DT 40404 1374 6 Fan Fan NNP 40404 1374 7 - - HYPH 40404 1374 8 Building Building NNP 40404 1374 9 Stream Stream NNP 40404 1374 10 ] ] -RRB- 40404 1374 11 Where where WRB 40404 1374 12 rivers river NNS 40404 1374 13 descend descend VBP 40404 1374 14 from from IN 40404 1374 15 a a DT 40404 1374 16 mountainous mountainous JJ 40404 1374 17 region region NN 40404 1374 18 upon upon IN 40404 1374 19 the the DT 40404 1374 20 plain plain NN 40404 1374 21 they -PRON- PRP 40404 1374 22 may may MD 40404 1374 23 build build VB 40404 1374 24 alluvial alluvial JJ 40404 1374 25 fans fan NNS 40404 1374 26 of of IN 40404 1374 27 exceedingly exceedingly RB 40404 1374 28 gentle gentle JJ 40404 1374 29 slope slope NN 40404 1374 30 . . . 40404 1375 1 Thus thus RB 40404 1375 2 the the DT 40404 1375 3 rivers river NNS 40404 1375 4 of of IN 40404 1375 5 the the DT 40404 1375 6 western western JJ 40404 1375 7 side side NN 40404 1375 8 of of IN 40404 1375 9 the the DT 40404 1375 10 Sierra Sierra NNP 40404 1375 11 Nevada Nevada NNP 40404 1375 12 Mountains Mountains NNPS 40404 1375 13 have have VBP 40404 1375 14 spread spread VBN 40404 1375 15 fans fan NNS 40404 1375 16 with with IN 40404 1375 17 a a DT 40404 1375 18 radius radius NN 40404 1375 19 of of IN 40404 1375 20 as as RB 40404 1375 21 much much JJ 40404 1375 22 as as IN 40404 1375 23 forty forty CD 40404 1375 24 miles mile NNS 40404 1375 25 and and CC 40404 1375 26 a a DT 40404 1375 27 slope slope NN 40404 1375 28 too too RB 40404 1375 29 slight slight JJ 40404 1375 30 to to TO 40404 1375 31 be be VB 40404 1375 32 detected detect VBN 40404 1375 33 without without IN 40404 1375 34 instruments instrument NNS 40404 1375 35 , , , 40404 1375 36 where where WRB 40404 1375 37 they -PRON- PRP 40404 1375 38 leave leave VBP 40404 1375 39 the the DT 40404 1375 40 rock rock NN 40404 1375 41 - - HYPH 40404 1375 42 cut cut VBN 40404 1375 43 canyons canyon NNS 40404 1375 44 in in IN 40404 1375 45 the the DT 40404 1375 46 mountains mountain NNS 40404 1375 47 and and CC 40404 1375 48 descend descend VB 40404 1375 49 upon upon IN 40404 1375 50 the the DT 40404 1375 51 broad broad JJ 40404 1375 52 central central JJ 40404 1375 53 valley valley NN 40404 1375 54 of of IN 40404 1375 55 California California NNP 40404 1375 56 . . . 40404 1376 1 As as IN 40404 1376 2 a a DT 40404 1376 3 river river NN 40404 1376 4 flows flow VBZ 40404 1376 5 over over IN 40404 1376 6 its -PRON- PRP$ 40404 1376 7 fan fan NN 40404 1376 8 it -PRON- PRP 40404 1376 9 commonly commonly RB 40404 1376 10 divides divide VBZ 40404 1376 11 into into IN 40404 1376 12 a a DT 40404 1376 13 branchwork branchwork NN 40404 1376 14 of of IN 40404 1376 15 shifting shift VBG 40404 1376 16 channels channel NNS 40404 1376 17 called call VBN 40404 1376 18 _ _ NNP 40404 1376 19 distributaries distributary NNS 40404 1376 20 _ _ NNP 40404 1376 21 , , , 40404 1376 22 since since IN 40404 1376 23 they -PRON- PRP 40404 1376 24 lead lead VBP 40404 1376 25 off off IN 40404 1376 26 the the DT 40404 1376 27 water water NN 40404 1376 28 from from IN 40404 1376 29 the the DT 40404 1376 30 main main JJ 40404 1376 31 stream stream NN 40404 1376 32 . . . 40404 1377 1 In in IN 40404 1377 2 this this DT 40404 1377 3 way way NN 40404 1377 4 each each DT 40404 1377 5 part part NN 40404 1377 6 of of IN 40404 1377 7 the the DT 40404 1377 8 fan fan NN 40404 1377 9 is be VBZ 40404 1377 10 aggraded aggrade VBN 40404 1377 11 and and CC 40404 1377 12 its -PRON- PRP$ 40404 1377 13 symmetric symmetric JJ 40404 1377 14 form form NN 40404 1377 15 is be VBZ 40404 1377 16 preserved preserve VBN 40404 1377 17 . . . 40404 1378 1 = = NFP 40404 1378 2 Piedmont Piedmont NNP 40404 1378 3 plains.= plains.= NNP 40404 1378 4 Mountain Mountain NNP 40404 1378 5 streams stream NNS 40404 1378 6 may may MD 40404 1378 7 build build VB 40404 1378 8 their -PRON- PRP$ 40404 1378 9 confluent confluent JJ 40404 1378 10 fans fan NNS 40404 1378 11 into into IN 40404 1378 12 widespread widespread JJ 40404 1378 13 piedmont piedmont NN 40404 1378 14 ( ( -LRB- 40404 1378 15 foot foot NN 40404 1378 16 of of IN 40404 1378 17 the the DT 40404 1378 18 mountain mountain NN 40404 1378 19 ) ) -RRB- 40404 1378 20 alluvial alluvial JJ 40404 1378 21 plains plain NNS 40404 1378 22 . . . 40404 1379 1 These these DT 40404 1379 2 are be VBP 40404 1379 3 especially especially RB 40404 1379 4 characteristic characteristic JJ 40404 1379 5 of of IN 40404 1379 6 arid arid NNP 40404 1379 7 lands land NNS 40404 1379 8 , , , 40404 1379 9 where where WRB 40404 1379 10 the the DT 40404 1379 11 streams stream NNS 40404 1379 12 wither wither VBP 40404 1379 13 as as IN 40404 1379 14 they -PRON- PRP 40404 1379 15 flow flow VBP 40404 1379 16 out out RP 40404 1379 17 upon upon IN 40404 1379 18 the the DT 40404 1379 19 thirsty thirsty JJ 40404 1379 20 lowlands lowland NNS 40404 1379 21 and and CC 40404 1379 22 are be VBP 40404 1379 23 therefore therefore RB 40404 1379 24 compelled compel VBN 40404 1379 25 to to TO 40404 1379 26 lay lay VB 40404 1379 27 down down RP 40404 1379 28 a a DT 40404 1379 29 large large JJ 40404 1379 30 portion portion NN 40404 1379 31 of of IN 40404 1379 32 their -PRON- PRP$ 40404 1379 33 load load NN 40404 1379 34 . . . 40404 1380 1 In in IN 40404 1380 2 humid humid JJ 40404 1380 3 climates climate VBZ 40404 1380 4 mountain mountain NN 40404 1380 5 - - HYPH 40404 1380 6 born bear VBN 40404 1380 7 streams stream NNS 40404 1380 8 are be VBP 40404 1380 9 usually usually RB 40404 1380 10 competent competent JJ 40404 1380 11 to to TO 40404 1380 12 carry carry VB 40404 1380 13 their -PRON- PRP$ 40404 1380 14 loads load NNS 40404 1380 15 of of IN 40404 1380 16 waste waste NN 40404 1380 17 on on IN 40404 1380 18 to to IN 40404 1380 19 the the DT 40404 1380 20 sea sea NN 40404 1380 21 , , , 40404 1380 22 and and CC 40404 1380 23 have have VB 40404 1380 24 energy energy NN 40404 1380 25 to to TO 40404 1380 26 spare spare VB 40404 1380 27 to to TO 40404 1380 28 cut cut VB 40404 1380 29 the the DT 40404 1380 30 lower low JJR 40404 1380 31 mountain mountain NN 40404 1380 32 slopes slope NNS 40404 1380 33 into into IN 40404 1380 34 foothills foothill NNS 40404 1380 35 . . . 40404 1381 1 In in IN 40404 1381 2 arid arid JJ 40404 1381 3 regions region NNS 40404 1381 4 foothills foothill NNS 40404 1381 5 are be VBP 40404 1381 6 commonly commonly RB 40404 1381 7 absent absent JJ 40404 1381 8 and and CC 40404 1381 9 the the DT 40404 1381 10 ranges range NNS 40404 1381 11 rise rise VBP 40404 1381 12 , , , 40404 1381 13 as as IN 40404 1381 14 from from IN 40404 1381 15 pedestals pedestal NNS 40404 1381 16 , , , 40404 1381 17 above above IN 40404 1381 18 broad broad JJ 40404 1381 19 , , , 40404 1381 20 sloping slope VBG 40404 1381 21 plains plain NNS 40404 1381 22 of of IN 40404 1381 23 stream stream NN 40404 1381 24 - - HYPH 40404 1381 25 laid lay VBN 40404 1381 26 waste waste NN 40404 1381 27 . . . 40404 1382 1 [ [ -LRB- 40404 1382 2 Illustration illustration NN 40404 1382 3 : : : 40404 1382 4 Fig Fig NNP 40404 1382 5 . . . 40404 1383 1 80 80 CD 40404 1383 2 . . . 40404 1384 1 Section section NN 40404 1384 2 from from IN 40404 1384 3 the the DT 40404 1384 4 Rocky Rocky NNP 40404 1384 5 Mountains Mountains NNPS 40404 1384 6 Eastward Eastward NNP 40404 1384 7 River River NNP 40404 1384 8 deposits deposit NNS 40404 1384 9 dotted dot VBN 40404 1384 10 ] ] -RRB- 40404 1384 11 = = NFP 40404 1384 12 The the DT 40404 1384 13 High high JJ 40404 1384 14 Plains.= plains.= NN 40404 1384 15 The the DT 40404 1384 16 rivers river NNS 40404 1384 17 which which WDT 40404 1384 18 flow flow VBP 40404 1384 19 eastward eastward RB 40404 1384 20 from from IN 40404 1384 21 the the DT 40404 1384 22 Rocky Rocky NNP 40404 1384 23 Mountains Mountains NNPS 40404 1384 24 have have VBP 40404 1384 25 united unite VBN 40404 1384 26 their -PRON- PRP$ 40404 1384 27 fans fan NNS 40404 1384 28 in in IN 40404 1384 29 a a DT 40404 1384 30 continuous continuous JJ 40404 1384 31 sheet sheet NN 40404 1384 32 of of IN 40404 1384 33 waste waste NN 40404 1384 34 which which WDT 40404 1384 35 stretches stretch VBZ 40404 1384 36 forward forward RB 40404 1384 37 from from IN 40404 1384 38 the the DT 40404 1384 39 base base NN 40404 1384 40 of of IN 40404 1384 41 the the DT 40404 1384 42 mountains mountain NNS 40404 1384 43 for for IN 40404 1384 44 hundreds hundred NNS 40404 1384 45 of of IN 40404 1384 46 miles mile NNS 40404 1384 47 and and CC 40404 1384 48 in in IN 40404 1384 49 places place NNS 40404 1384 50 is be VBZ 40404 1384 51 five five CD 40404 1384 52 hundred hundred CD 40404 1384 53 feet foot NNS 40404 1384 54 thick thick JJ 40404 1384 55 ( ( -LRB- 40404 1384 56 Fig fig NN 40404 1384 57 . . . 40404 1385 1 80 80 CD 40404 1385 2 ) ) -RRB- 40404 1385 3 . . . 40404 1386 1 That that IN 40404 1386 2 the the DT 40404 1386 3 deposit deposit NN 40404 1386 4 was be VBD 40404 1386 5 made make VBN 40404 1386 6 in in IN 40404 1386 7 ancient ancient JJ 40404 1386 8 times time NNS 40404 1386 9 on on IN 40404 1386 10 land land NN 40404 1386 11 and and CC 40404 1386 12 not not RB 40404 1386 13 in in IN 40404 1386 14 the the DT 40404 1386 15 sea sea NN 40404 1386 16 is be VBZ 40404 1386 17 proved prove VBN 40404 1386 18 by by IN 40404 1386 19 the the DT 40404 1386 20 remains remain NNS 40404 1386 21 which which WDT 40404 1386 22 it -PRON- PRP 40404 1386 23 contains contain VBZ 40404 1386 24 of of IN 40404 1386 25 land land NN 40404 1386 26 animals animal NNS 40404 1386 27 and and CC 40404 1386 28 plants plant NNS 40404 1386 29 of of IN 40404 1386 30 species specie NNS 40404 1386 31 now now RB 40404 1386 32 extinct extinct JJ 40404 1386 33 . . . 40404 1387 1 That that IN 40404 1387 2 it -PRON- PRP 40404 1387 3 was be VBD 40404 1387 4 laid lay VBN 40404 1387 5 by by IN 40404 1387 6 rivers river NNS 40404 1387 7 and and CC 40404 1387 8 not not RB 40404 1387 9 by by IN 40404 1387 10 fresh fresh JJ 40404 1387 11 - - HYPH 40404 1387 12 water water NN 40404 1387 13 lakes lake NNS 40404 1387 14 is be VBZ 40404 1387 15 shown show VBN 40404 1387 16 by by IN 40404 1387 17 its -PRON- PRP$ 40404 1387 18 structure structure NN 40404 1387 19 . . . 40404 1388 1 Wide wide JJ 40404 1388 2 stretches stretch NNS 40404 1388 3 of of IN 40404 1388 4 flat flat RB 40404 1388 5 - - HYPH 40404 1388 6 lying lying NN 40404 1388 7 , , , 40404 1388 8 clays clay NNS 40404 1388 9 and and CC 40404 1388 10 sands sand NNS 40404 1388 11 are be VBP 40404 1388 12 interrupted interrupt VBN 40404 1388 13 by by IN 40404 1388 14 long long JJ 40404 1388 15 , , , 40404 1388 16 narrow narrow JJ 40404 1388 17 belts belt NNS 40404 1388 18 of of IN 40404 1388 19 gravel gravel NN 40404 1388 20 which which WDT 40404 1388 21 mark mark VBP 40404 1388 22 the the DT 40404 1388 23 channels channel NNS 40404 1388 24 of of IN 40404 1388 25 the the DT 40404 1388 26 ancient ancient JJ 40404 1388 27 streams stream NNS 40404 1388 28 . . . 40404 1389 1 Gravels gravel NNS 40404 1389 2 , , , 40404 1389 3 and and CC 40404 1389 4 sands sand NNS 40404 1389 5 are be VBP 40404 1389 6 often often RB 40404 1389 7 cross cross NN 40404 1389 8 bedded bed VBN 40404 1389 9 , , , 40404 1389 10 and and CC 40404 1389 11 their -PRON- PRP$ 40404 1389 12 well well RB 40404 1389 13 worn wear VBN 40404 1389 14 pebbles pebble NNS 40404 1389 15 may may MD 40404 1389 16 be be VB 40404 1389 17 identified identify VBN 40404 1389 18 with with IN 40404 1389 19 the the DT 40404 1389 20 rocks rock NNS 40404 1389 21 of of IN 40404 1389 22 the the DT 40404 1389 23 mountains mountain NNS 40404 1389 24 . . . 40404 1390 1 After after IN 40404 1390 2 building build VBG 40404 1390 3 this this DT 40404 1390 4 sheet sheet NN 40404 1390 5 of of IN 40404 1390 6 waste waste NN 40404 1390 7 the the DT 40404 1390 8 streams streams NNPS 40404 1390 9 ceased cease VBN 40404 1390 10 to to IN 40404 1390 11 aggrade aggrade VB 40404 1390 12 and and CC 40404 1390 13 began begin VBD 40404 1390 14 the the DT 40404 1390 15 work work NN 40404 1390 16 of of IN 40404 1390 17 destruction destruction NN 40404 1390 18 . . . 40404 1391 1 Large large JJ 40404 1391 2 uneroded uneroded JJ 40404 1391 3 remnants remnant NNS 40404 1391 4 , , , 40404 1391 5 their -PRON- PRP$ 40404 1391 6 surfaces surface NNS 40404 1391 7 flat flat JJ 40404 1391 8 as as IN 40404 1391 9 a a DT 40404 1391 10 floor floor NN 40404 1391 11 , , , 40404 1391 12 remain remain VBP 40404 1391 13 as as IN 40404 1391 14 the the DT 40404 1391 15 High High NNP 40404 1391 16 Plains Plains NNPS 40404 1391 17 of of IN 40404 1391 18 western western JJ 40404 1391 19 Kansas Kansas NNP 40404 1391 20 and and CC 40404 1391 21 Nebraska Nebraska NNP 40404 1391 22 . . . 40404 1392 1 = = NFP 40404 1392 2 River river NN 40404 1392 3 deposits deposit NNS 40404 1392 4 in in IN 40404 1392 5 subsiding subside VBG 40404 1392 6 troughs.= troughs.= CD 40404 1392 7 To to IN 40404 1392 8 a a DT 40404 1392 9 geologist geologist NN 40404 1392 10 the the DT 40404 1392 11 most most RBS 40404 1392 12 important important JJ 40404 1392 13 river river NN 40404 1392 14 deposits deposit NNS 40404 1392 15 are be VBP 40404 1392 16 those those DT 40404 1392 17 which which WDT 40404 1392 18 gather gather VBP 40404 1392 19 in in IN 40404 1392 20 areas area NNS 40404 1392 21 of of IN 40404 1392 22 gradual gradual JJ 40404 1392 23 subsidence subsidence NN 40404 1392 24 ; ; : 40404 1392 25 they -PRON- PRP 40404 1392 26 are be VBP 40404 1392 27 often often RB 40404 1392 28 of of IN 40404 1392 29 vast vast JJ 40404 1392 30 extent extent NN 40404 1392 31 and and CC 40404 1392 32 immense immense JJ 40404 1392 33 thickness thickness NN 40404 1392 34 , , , 40404 1392 35 and and CC 40404 1392 36 such such JJ 40404 1392 37 deposits deposit NNS 40404 1392 38 of of IN 40404 1392 39 past past JJ 40404 1392 40 geological geological JJ 40404 1392 41 ages age NNS 40404 1392 42 have have VBP 40404 1392 43 not not RB 40404 1392 44 infrequently infrequently RB 40404 1392 45 been be VBN 40404 1392 46 preserved preserve VBN 40404 1392 47 , , , 40404 1392 48 with with IN 40404 1392 49 all all PDT 40404 1392 50 their -PRON- PRP$ 40404 1392 51 records record NNS 40404 1392 52 of of IN 40404 1392 53 the the DT 40404 1392 54 times time NNS 40404 1392 55 in in IN 40404 1392 56 which which WDT 40404 1392 57 they -PRON- PRP 40404 1392 58 were be VBD 40404 1392 59 built build VBN 40404 1392 60 , , , 40404 1392 61 by by IN 40404 1392 62 being be VBG 40404 1392 63 carried carry VBN 40404 1392 64 below below IN 40404 1392 65 the the DT 40404 1392 66 level level NN 40404 1392 67 of of IN 40404 1392 68 the the DT 40404 1392 69 sea sea NN 40404 1392 70 , , , 40404 1392 71 to to TO 40404 1392 72 be be VB 40404 1392 73 brought bring VBN 40404 1392 74 to to IN 40404 1392 75 light light NN 40404 1392 76 by by IN 40404 1392 77 a a DT 40404 1392 78 later later JJ 40404 1392 79 uplift uplift NN 40404 1392 80 . . . 40404 1393 1 On on IN 40404 1393 2 the the DT 40404 1393 3 other other JJ 40404 1393 4 hand hand NN 40404 1393 5 , , , 40404 1393 6 river river NN 40404 1393 7 deposits deposit NNS 40404 1393 8 which which WDT 40404 1393 9 remain remain VBP 40404 1393 10 above above IN 40404 1393 11 baselevels baselevel NNS 40404 1393 12 of of IN 40404 1393 13 erosion erosion NN 40404 1393 14 are be VBP 40404 1393 15 swept sweep VBN 40404 1393 16 away away RB 40404 1393 17 comparatively comparatively RB 40404 1393 18 soon soon RB 40404 1393 19 . . . 40404 1394 1 = = NFP 40404 1394 2 The the DT 40404 1394 3 Great Great NNP 40404 1394 4 Valley Valley NNP 40404 1394 5 Of of IN 40404 1394 6 California= California= NNP 40404 1394 7 is be VBZ 40404 1394 8 a a DT 40404 1394 9 monotonously monotonously RB 40404 1394 10 level level NN 40404 1394 11 plain plain JJ 40404 1394 12 of of IN 40404 1394 13 great great JJ 40404 1394 14 fertility fertility NN 40404 1394 15 , , , 40404 1394 16 four four CD 40404 1394 17 hundred hundred CD 40404 1394 18 miles mile NNS 40404 1394 19 in in IN 40404 1394 20 length length NN 40404 1394 21 and and CC 40404 1394 22 fifty fifty CD 40404 1394 23 miles mile NNS 40404 1394 24 in in IN 40404 1394 25 average average JJ 40404 1394 26 width width NN 40404 1394 27 , , , 40404 1394 28 built build VBN 40404 1394 29 of of IN 40404 1394 30 waste waste NN 40404 1394 31 swept sweep VBN 40404 1394 32 down down RP 40404 1394 33 by by IN 40404 1394 34 streams stream NNS 40404 1394 35 from from IN 40404 1394 36 the the DT 40404 1394 37 mountain mountain NN 40404 1394 38 ranges range NNS 40404 1394 39 which which WDT 40404 1394 40 inclose inclose VBP 40404 1394 41 it,--the it,--the NNP 40404 1394 42 Sierra Sierra NNP 40404 1394 43 Nevada Nevada NNP 40404 1394 44 on on IN 40404 1394 45 the the DT 40404 1394 46 east east NN 40404 1394 47 and and CC 40404 1394 48 the the DT 40404 1394 49 Coast Coast NNP 40404 1394 50 Range Range NNP 40404 1394 51 on on IN 40404 1394 52 the the DT 40404 1394 53 west west NN 40404 1394 54 . . . 40404 1395 1 On on IN 40404 1395 2 the the DT 40404 1395 3 waste waste NN 40404 1395 4 slopes slope NNS 40404 1395 5 at at IN 40404 1395 6 the the DT 40404 1395 7 foot foot NN 40404 1395 8 of of IN 40404 1395 9 the the DT 40404 1395 10 bordering bordering NN 40404 1395 11 hills hill VBZ 40404 1395 12 coarse coarse JJ 40404 1395 13 gravels gravel NNS 40404 1395 14 and and CC 40404 1395 15 even even RB 40404 1395 16 bowlders bowlder NNS 40404 1395 17 are be VBP 40404 1395 18 left leave VBN 40404 1395 19 , , , 40404 1395 20 while while IN 40404 1395 21 over over IN 40404 1395 22 the the DT 40404 1395 23 interior interior NN 40404 1395 24 the the DT 40404 1395 25 slow slow RB 40404 1395 26 - - HYPH 40404 1395 27 flowing flow VBG 40404 1395 28 streams stream NNS 40404 1395 29 at at IN 40404 1395 30 times time NNS 40404 1395 31 of of IN 40404 1395 32 flood flood NN 40404 1395 33 spread spread VBP 40404 1395 34 wide wide JJ 40404 1395 35 sheets sheet NNS 40404 1395 36 of of IN 40404 1395 37 silt silt NN 40404 1395 38 . . . 40404 1396 1 Organic organic JJ 40404 1396 2 deposits deposit NNS 40404 1396 3 are be VBP 40404 1396 4 now now RB 40404 1396 5 forming form VBG 40404 1396 6 by by IN 40404 1396 7 the the DT 40404 1396 8 decay decay NN 40404 1396 9 of of IN 40404 1396 10 vegetation vegetation NN 40404 1396 11 in in IN 40404 1396 12 swampy swampy NNP 40404 1396 13 tule tule NNP 40404 1396 14 ( ( -LRB- 40404 1396 15 reed reed NN 40404 1396 16 ) ) -RRB- 40404 1396 17 lands land NNS 40404 1396 18 and and CC 40404 1396 19 in in IN 40404 1396 20 shallow shallow JJ 40404 1396 21 lakes lake NNS 40404 1396 22 which which WDT 40404 1396 23 occupy occupy VBP 40404 1396 24 depressions depression NNS 40404 1396 25 left leave VBN 40404 1396 26 by by IN 40404 1396 27 the the DT 40404 1396 28 aggrading aggrading NN 40404 1396 29 streams stream NNS 40404 1396 30 . . . 40404 1397 1 Deep deep JJ 40404 1397 2 borings boring NNS 40404 1397 3 show show VBP 40404 1397 4 that that IN 40404 1397 5 this this DT 40404 1397 6 great great JJ 40404 1397 7 trough trough NN 40404 1397 8 is be VBZ 40404 1397 9 filled fill VBN 40404 1397 10 to to IN 40404 1397 11 a a DT 40404 1397 12 depth depth NN 40404 1397 13 of of IN 40404 1397 14 at at RB 40404 1397 15 least least RBS 40404 1397 16 two two CD 40404 1397 17 thousand thousand CD 40404 1397 18 feet foot NNS 40404 1397 19 below below IN 40404 1397 20 sea sea NN 40404 1397 21 level level NN 40404 1397 22 with with IN 40404 1397 23 recent recent JJ 40404 1397 24 unconsolidated unconsolidated JJ 40404 1397 25 sands sand NNS 40404 1397 26 and and CC 40404 1397 27 silts silt NNS 40404 1397 28 containing contain VBG 40404 1397 29 logs log NNS 40404 1397 30 of of IN 40404 1397 31 wood wood NN 40404 1397 32 and and CC 40404 1397 33 fresh fresh JJ 40404 1397 34 - - HYPH 40404 1397 35 water water NN 40404 1397 36 shells shell NNS 40404 1397 37 . . . 40404 1398 1 These these DT 40404 1398 2 are be VBP 40404 1398 3 land land NN 40404 1398 4 deposits deposit NNS 40404 1398 5 , , , 40404 1398 6 and and CC 40404 1398 7 the the DT 40404 1398 8 absence absence NN 40404 1398 9 of of IN 40404 1398 10 any any DT 40404 1398 11 marine marine JJ 40404 1398 12 deposits deposit NNS 40404 1398 13 among among IN 40404 1398 14 them -PRON- PRP 40404 1398 15 proves prove VBZ 40404 1398 16 that that IN 40404 1398 17 the the DT 40404 1398 18 region region NN 40404 1398 19 has have VBZ 40404 1398 20 not not RB 40404 1398 21 been be VBN 40404 1398 22 invaded invade VBN 40404 1398 23 by by IN 40404 1398 24 the the DT 40404 1398 25 sea sea NN 40404 1398 26 since since IN 40404 1398 27 the the DT 40404 1398 28 accumulation accumulation NN 40404 1398 29 began begin VBD 40404 1398 30 . . . 40404 1399 1 It -PRON- PRP 40404 1399 2 has have VBZ 40404 1399 3 therefore therefore RB 40404 1399 4 been be VBN 40404 1399 5 slowly slowly RB 40404 1399 6 subsiding subsiding JJ 40404 1399 7 and and CC 40404 1399 8 its -PRON- PRP$ 40404 1399 9 streams stream NNS 40404 1399 10 , , , 40404 1399 11 although although IN 40404 1399 12 continually continually RB 40404 1399 13 carried carry VBN 40404 1399 14 below below IN 40404 1399 15 grade grade NN 40404 1399 16 , , , 40404 1399 17 have have VBP 40404 1399 18 yet yet RB 40404 1399 19 been be VBN 40404 1399 20 able able JJ 40404 1399 21 to to TO 40404 1399 22 aggrade aggrade VB 40404 1399 23 the the DT 40404 1399 24 surface surface NN 40404 1399 25 as as RB 40404 1399 26 rapidly rapidly RB 40404 1399 27 as as IN 40404 1399 28 the the DT 40404 1399 29 region region NN 40404 1399 30 sank sink VBD 40404 1399 31 , , , 40404 1399 32 and and CC 40404 1399 33 have have VBP 40404 1399 34 maintained maintain VBN 40404 1399 35 it -PRON- PRP 40404 1399 36 , , , 40404 1399 37 as as IN 40404 1399 38 at at IN 40404 1399 39 present present NN 40404 1399 40 , , , 40404 1399 41 slightly slightly RB 40404 1399 42 above above IN 40404 1399 43 sea sea NN 40404 1399 44 level level NN 40404 1399 45 . . . 40404 1400 1 = = NFP 40404 1400 2 The the DT 40404 1400 3 Indo Indo NNP 40404 1400 4 - - HYPH 40404 1400 5 Gangetic Gangetic NNP 40404 1400 6 Plain= Plain= NNS 40404 1400 7 , , , 40404 1400 8 spread spread VBN 40404 1400 9 by by IN 40404 1400 10 the the DT 40404 1400 11 Brahmaputra Brahmaputra NNP 40404 1400 12 , , , 40404 1400 13 the the DT 40404 1400 14 Ganges Ganges NNPS 40404 1400 15 , , , 40404 1400 16 and and CC 40404 1400 17 the the DT 40404 1400 18 Indus Indus NNP 40404 1400 19 river river NN 40404 1400 20 systems system NNS 40404 1400 21 , , , 40404 1400 22 stretches stretch NNS 40404 1400 23 for for IN 40404 1400 24 sixteen sixteen CD 40404 1400 25 hundred hundred CD 40404 1400 26 miles mile NNS 40404 1400 27 along along IN 40404 1400 28 the the DT 40404 1400 29 southern southern JJ 40404 1400 30 base base NN 40404 1400 31 of of IN 40404 1400 32 the the DT 40404 1400 33 Himalaya Himalaya NNP 40404 1400 34 Mountains Mountains NNPS 40404 1400 35 and and CC 40404 1400 36 occupies occupy VBZ 40404 1400 37 an an DT 40404 1400 38 area area NN 40404 1400 39 of of IN 40404 1400 40 three three CD 40404 1400 41 hundred hundred CD 40404 1400 42 thousand thousand CD 40404 1400 43 square square JJ 40404 1400 44 miles mile NNS 40404 1400 45 ( ( -LRB- 40404 1400 46 Fig fig NN 40404 1400 47 . . . 40404 1401 1 342 342 CD 40404 1401 2 ) ) -RRB- 40404 1401 3 . . . 40404 1402 1 It -PRON- PRP 40404 1402 2 consists consist VBZ 40404 1402 3 of of IN 40404 1402 4 the the DT 40404 1402 5 flood flood NN 40404 1402 6 plains plain NNS 40404 1402 7 of of IN 40404 1402 8 the the DT 40404 1402 9 master master NN 40404 1402 10 streams stream NNS 40404 1402 11 and and CC 40404 1402 12 the the DT 40404 1402 13 confluent confluent NN 40404 1402 14 fans fan NNS 40404 1402 15 of of IN 40404 1402 16 the the DT 40404 1402 17 tributaries tributary NNS 40404 1402 18 which which WDT 40404 1402 19 issue issue VBP 40404 1402 20 from from IN 40404 1402 21 the the DT 40404 1402 22 mountains mountain NNS 40404 1402 23 on on IN 40404 1402 24 the the DT 40404 1402 25 north north NN 40404 1402 26 . . . 40404 1403 1 Large large JJ 40404 1403 2 areas area NNS 40404 1403 3 are be VBP 40404 1403 4 subject subject JJ 40404 1403 5 to to IN 40404 1403 6 overflow overflow IN 40404 1403 7 each each DT 40404 1403 8 season season NN 40404 1403 9 of of IN 40404 1403 10 flood flood NN 40404 1403 11 , , , 40404 1403 12 and and CC 40404 1403 13 still still RB 40404 1403 14 larger large JJR 40404 1403 15 tracts tract NNS 40404 1403 16 mark mark NNP 40404 1403 17 abandoned abandon VBN 40404 1403 18 flood flood NN 40404 1403 19 plains plain NNS 40404 1403 20 below below IN 40404 1403 21 which which WDT 40404 1403 22 the the DT 40404 1403 23 rivers river NNS 40404 1403 24 have have VBP 40404 1403 25 now now RB 40404 1403 26 cut cut VBN 40404 1403 27 their -PRON- PRP$ 40404 1403 28 beds bed NNS 40404 1403 29 . . . 40404 1404 1 The the DT 40404 1404 2 plain plain NN 40404 1404 3 is be VBZ 40404 1404 4 built build VBN 40404 1404 5 of of IN 40404 1404 6 far far RB 40404 1404 7 - - HYPH 40404 1404 8 stretching stretch VBG 40404 1404 9 beds bed NNS 40404 1404 10 of of IN 40404 1404 11 clay clay NN 40404 1404 12 , , , 40404 1404 13 penetrated penetrate VBN 40404 1404 14 by by IN 40404 1404 15 streaks streak NNS 40404 1404 16 of of IN 40404 1404 17 sand sand NN 40404 1404 18 , , , 40404 1404 19 and and CC 40404 1404 20 also also RB 40404 1404 21 of of IN 40404 1404 22 gravel gravel NN 40404 1404 23 near near IN 40404 1404 24 the the DT 40404 1404 25 mountains mountain NNS 40404 1404 26 . . . 40404 1405 1 Beds bed NNS 40404 1405 2 of of IN 40404 1405 3 impure impure NN 40404 1405 4 peat peat NN 40404 1405 5 occur occur VB 40404 1405 6 in in IN 40404 1405 7 it -PRON- PRP 40404 1405 8 , , , 40404 1405 9 and and CC 40404 1405 10 it -PRON- PRP 40404 1405 11 contains contain VBZ 40404 1405 12 fresh fresh JJ 40404 1405 13 - - HYPH 40404 1405 14 water water NN 40404 1405 15 shells shell NNS 40404 1405 16 and and CC 40404 1405 17 the the DT 40404 1405 18 bones bone NNS 40404 1405 19 of of IN 40404 1405 20 land land NN 40404 1405 21 animals animal NNS 40404 1405 22 of of IN 40404 1405 23 species specie NNS 40404 1405 24 now now RB 40404 1405 25 living live VBG 40404 1405 26 in in IN 40404 1405 27 northern northern JJ 40404 1405 28 India India NNP 40404 1405 29 . . . 40404 1406 1 At at IN 40404 1406 2 Lucknow Lucknow NNP 40404 1406 3 an an DT 40404 1406 4 artesian artesian JJ 40404 1406 5 well well NN 40404 1406 6 was be VBD 40404 1406 7 sunk sink VBN 40404 1406 8 to to IN 40404 1406 9 one one CD 40404 1406 10 thousand thousand CD 40404 1406 11 feet foot NNS 40404 1406 12 below below IN 40404 1406 13 sea sea NN 40404 1406 14 level level NN 40404 1406 15 without without IN 40404 1406 16 reaching reach VBG 40404 1406 17 the the DT 40404 1406 18 bottom bottom NN 40404 1406 19 of of IN 40404 1406 20 these these DT 40404 1406 21 river river NN 40404 1406 22 - - HYPH 40404 1406 23 laid lay VBN 40404 1406 24 sands sand NNS 40404 1406 25 and and CC 40404 1406 26 silts silt NNS 40404 1406 27 , , , 40404 1406 28 proving prove VBG 40404 1406 29 a a DT 40404 1406 30 slow slow JJ 40404 1406 31 subsidence subsidence NN 40404 1406 32 with with IN 40404 1406 33 which which WDT 40404 1406 34 the the DT 40404 1406 35 aggrading aggrade VBG 40404 1406 36 rivers river NNS 40404 1406 37 have have VBP 40404 1406 38 kept keep VBN 40404 1406 39 pace pace NN 40404 1406 40 . . . 40404 1407 1 = = NFP 40404 1407 2 Warped Warped NNP 40404 1407 3 valleys.= valleys.= NNS 40404 1407 4 It -PRON- PRP 40404 1407 5 is be VBZ 40404 1407 6 not not RB 40404 1407 7 necessary necessary JJ 40404 1407 8 that that IN 40404 1407 9 an an DT 40404 1407 10 area area NN 40404 1407 11 should should MD 40404 1407 12 sink sink VB 40404 1407 13 below below IN 40404 1407 14 sea sea NN 40404 1407 15 level level NN 40404 1407 16 in in IN 40404 1407 17 order order NN 40404 1407 18 to to TO 40404 1407 19 be be VB 40404 1407 20 filled fill VBN 40404 1407 21 with with IN 40404 1407 22 stream stream NN 40404 1407 23 - - HYPH 40404 1407 24 swept sweep VBN 40404 1407 25 waste waste NN 40404 1407 26 . . . 40404 1408 1 High high JJ 40404 1408 2 valleys valley NNS 40404 1408 3 among among IN 40404 1408 4 growing grow VBG 40404 1408 5 mountain mountain NN 40404 1408 6 ranges range NNS 40404 1408 7 may may MD 40404 1408 8 suffer suffer VB 40404 1408 9 warping warping NN 40404 1408 10 , , , 40404 1408 11 or or CC 40404 1408 12 may may MD 40404 1408 13 be be VB 40404 1408 14 blockaded blockade VBN 40404 1408 15 by by IN 40404 1408 16 rising rise VBG 40404 1408 17 mountain mountain NN 40404 1408 18 folds fold NNS 40404 1408 19 athwart athwart VBP 40404 1408 20 them -PRON- PRP 40404 1408 21 . . . 40404 1409 1 Where where WRB 40404 1409 2 the the DT 40404 1409 3 deformation deformation NN 40404 1409 4 is be VBZ 40404 1409 5 rapid rapid JJ 40404 1409 6 enough enough RB 40404 1409 7 , , , 40404 1409 8 the the DT 40404 1409 9 river river NN 40404 1409 10 may may MD 40404 1409 11 be be VB 40404 1409 12 ponded ponde VBN 40404 1409 13 and and CC 40404 1409 14 the the DT 40404 1409 15 valley valley NN 40404 1409 16 filled fill VBN 40404 1409 17 with with IN 40404 1409 18 lake lake NN 40404 1409 19 - - HYPH 40404 1409 20 laid lay VBN 40404 1409 21 sediments sediment NNS 40404 1409 22 . . . 40404 1410 1 Even even RB 40404 1410 2 when when WRB 40404 1410 3 the the DT 40404 1410 4 river river NN 40404 1410 5 is be VBZ 40404 1410 6 able able JJ 40404 1410 7 to to TO 40404 1410 8 maintain maintain VB 40404 1410 9 its -PRON- PRP$ 40404 1410 10 right right NN 40404 1410 11 of of IN 40404 1410 12 way way NN 40404 1410 13 it -PRON- PRP 40404 1410 14 may may MD 40404 1410 15 yet yet RB 40404 1410 16 have have VB 40404 1410 17 its -PRON- PRP$ 40404 1410 18 declivity declivity NN 40404 1410 19 so so RB 40404 1410 20 lessened lessen VBN 40404 1410 21 that that IN 40404 1410 22 it -PRON- PRP 40404 1410 23 is be VBZ 40404 1410 24 compelled compel VBN 40404 1410 25 to to TO 40404 1410 26 aggrade aggrade VB 40404 1410 27 its -PRON- PRP$ 40404 1410 28 course course NN 40404 1410 29 continually continually RB 40404 1410 30 , , , 40404 1410 31 filling fill VBG 40404 1410 32 the the DT 40404 1410 33 valley valley NN 40404 1410 34 with with IN 40404 1410 35 river river NN 40404 1410 36 deposits deposit NNS 40404 1410 37 which which WDT 40404 1410 38 may may MD 40404 1410 39 grow grow VB 40404 1410 40 to to IN 40404 1410 41 an an DT 40404 1410 42 enormous enormous JJ 40404 1410 43 thickness thickness NN 40404 1410 44 . . . 40404 1411 1 Behind behind IN 40404 1411 2 the the DT 40404 1411 3 outer outer JJ 40404 1411 4 ranges range NNS 40404 1411 5 of of IN 40404 1411 6 the the DT 40404 1411 7 Himalaya Himalaya NNP 40404 1411 8 Mountains Mountains NNPS 40404 1411 9 lie lie VBP 40404 1411 10 several several JJ 40404 1411 11 waste waste NN 40404 1411 12 - - HYPH 40404 1411 13 filled fill VBN 40404 1411 14 valleys valley NNS 40404 1411 15 , , , 40404 1411 16 the the DT 40404 1411 17 largest large JJS 40404 1411 18 of of IN 40404 1411 19 which which WDT 40404 1411 20 are be VBP 40404 1411 21 Kashmir Kashmir NNP 40404 1411 22 and and CC 40404 1411 23 Nepal Nepal NNP 40404 1411 24 , , , 40404 1411 25 the the DT 40404 1411 26 former former JJ 40404 1411 27 being be VBG 40404 1411 28 an an DT 40404 1411 29 alluvial alluvial JJ 40404 1411 30 plain plain NN 40404 1411 31 about about RB 40404 1411 32 as as RB 40404 1411 33 large large JJ 40404 1411 34 as as IN 40404 1411 35 the the DT 40404 1411 36 state state NN 40404 1411 37 of of IN 40404 1411 38 Delaware Delaware NNP 40404 1411 39 . . . 40404 1412 1 The the DT 40404 1412 2 rivers river NNS 40404 1412 3 which which WDT 40404 1412 4 drain drain VBP 40404 1412 5 these these DT 40404 1412 6 plains plain NNS 40404 1412 7 have have VBP 40404 1412 8 already already RB 40404 1412 9 cut cut VBN 40404 1412 10 down down RP 40404 1412 11 their -PRON- PRP$ 40404 1412 12 outlet outlet NN 40404 1412 13 gorges gorge NNS 40404 1412 14 sufficiently sufficiently RB 40404 1412 15 to to TO 40404 1412 16 begin begin VB 40404 1412 17 the the DT 40404 1412 18 task task NN 40404 1412 19 of of IN 40404 1412 20 the the DT 40404 1412 21 removal removal NN 40404 1412 22 of of IN 40404 1412 23 the the DT 40404 1412 24 broad broad JJ 40404 1412 25 accumulations accumulation NNS 40404 1412 26 which which WDT 40404 1412 27 they -PRON- PRP 40404 1412 28 have have VBP 40404 1412 29 brought bring VBN 40404 1412 30 in in RP 40404 1412 31 from from IN 40404 1412 32 the the DT 40404 1412 33 surrounding surround VBG 40404 1412 34 mountains mountain NNS 40404 1412 35 . . . 40404 1413 1 Their -PRON- PRP$ 40404 1413 2 present present JJ 40404 1413 3 flood flood NN 40404 1413 4 plains plain NNS 40404 1413 5 lie lie VBP 40404 1413 6 as as RB 40404 1413 7 much much RB 40404 1413 8 as as IN 40404 1413 9 some some DT 40404 1413 10 hundreds hundred NNS 40404 1413 11 of of IN 40404 1413 12 feet foot NNS 40404 1413 13 below below IN 40404 1413 14 wide wide JJ 40404 1413 15 alluvial alluvial JJ 40404 1413 16 terraces terrace NNS 40404 1413 17 which which WDT 40404 1413 18 mark mark VBP 40404 1413 19 their -PRON- PRP$ 40404 1413 20 former former JJ 40404 1413 21 levels level NNS 40404 1413 22 . . . 40404 1414 1 Indeed indeed RB 40404 1414 2 , , , 40404 1414 3 the the DT 40404 1414 4 horizontal horizontal JJ 40404 1414 5 beds bed NNS 40404 1414 6 of of IN 40404 1414 7 the the DT 40404 1414 8 Hundes Hundes NNP 40404 1414 9 Valley Valley NNP 40404 1414 10 have have VBP 40404 1414 11 been be VBN 40404 1414 12 trenched trench VBN 40404 1414 13 to to IN 40404 1414 14 the the DT 40404 1414 15 depth depth NN 40404 1414 16 of of IN 40404 1414 17 nearly nearly RB 40404 1414 18 three three CD 40404 1414 19 thousand thousand CD 40404 1414 20 feet foot NNS 40404 1414 21 by by IN 40404 1414 22 the the DT 40404 1414 23 Sutlej Sutlej NNP 40404 1414 24 River River NNP 40404 1414 25 . . . 40404 1415 1 These these DT 40404 1415 2 deposits deposit NNS 40404 1415 3 are be VBP 40404 1415 4 recent recent JJ 40404 1415 5 or or CC 40404 1415 6 subrecent subrecent JJ 40404 1415 7 , , , 40404 1415 8 for for IN 40404 1415 9 there there EX 40404 1415 10 have have VBP 40404 1415 11 been be VBN 40404 1415 12 found find VBN 40404 1415 13 at at IN 40404 1415 14 various various JJ 40404 1415 15 levels level NNS 40404 1415 16 the the DT 40404 1415 17 remains remain NNS 40404 1415 18 of of IN 40404 1415 19 land land NN 40404 1415 20 plants plant NNS 40404 1415 21 and and CC 40404 1415 22 land land NN 40404 1415 23 and and CC 40404 1415 24 fresh fresh JJ 40404 1415 25 - - HYPH 40404 1415 26 water water NN 40404 1415 27 shells shell NNS 40404 1415 28 , , , 40404 1415 29 and and CC 40404 1415 30 in in IN 40404 1415 31 some some DT 40404 1415 32 the the DT 40404 1415 33 bones bone NNS 40404 1415 34 of of IN 40404 1415 35 such such JJ 40404 1415 36 animals animal NNS 40404 1415 37 as as IN 40404 1415 38 the the DT 40404 1415 39 hyena hyena NN 40404 1415 40 and and CC 40404 1415 41 the the DT 40404 1415 42 goat goat NN 40404 1415 43 , , , 40404 1415 44 of of IN 40404 1415 45 species specie NNS 40404 1415 46 or or CC 40404 1415 47 of of IN 40404 1415 48 genera genera NN 40404 1415 49 now now RB 40404 1415 50 living live VBG 40404 1415 51 . . . 40404 1416 1 Such such JJ 40404 1416 2 soft soft JJ 40404 1416 3 deposits deposit NNS 40404 1416 4 can can MD 40404 1416 5 not not RB 40404 1416 6 be be VB 40404 1416 7 expected expect VBN 40404 1416 8 to to TO 40404 1416 9 endure endure VB 40404 1416 10 through through IN 40404 1416 11 any any DT 40404 1416 12 considerable considerable JJ 40404 1416 13 length length NN 40404 1416 14 of of IN 40404 1416 15 future future JJ 40404 1416 16 time time NN 40404 1416 17 the the DT 40404 1416 18 rapid rapid JJ 40404 1416 19 erosion erosion NN 40404 1416 20 to to TO 40404 1416 21 which which WDT 40404 1416 22 their -PRON- PRP$ 40404 1416 23 great great JJ 40404 1416 24 height height NN 40404 1416 25 above above IN 40404 1416 26 the the DT 40404 1416 27 level level NN 40404 1416 28 of of IN 40404 1416 29 the the DT 40404 1416 30 sea sea NN 40404 1416 31 will will MD 40404 1416 32 subject subject VB 40404 1416 33 them -PRON- PRP 40404 1416 34 . . . 40404 1417 1 [ [ -LRB- 40404 1417 2 Illustration illustration NN 40404 1417 3 : : : 40404 1417 4 Fig Fig NNP 40404 1417 5 . . . 40404 1418 1 81 81 CD 40404 1418 2 . . . 40404 1419 1 Cross Cross NNP 40404 1419 2 Section Section NNP 40404 1419 3 of of IN 40404 1419 4 Aggraded Aggraded NNP 40404 1419 5 Valley Valley NNP 40404 1419 6 , , , 40404 1419 7 showing show VBG 40404 1419 8 Structure structure NN 40404 1419 9 of of IN 40404 1419 10 River River NNP 40404 1419 11 Deposits Deposits NNPS 40404 1419 12 ] ] -RRB- 40404 1419 13 = = SYM 40404 1419 14 Characteristics Characteristics NNP 40404 1419 15 of of IN 40404 1419 16 river river NN 40404 1419 17 deposits.= deposits.= NNP 40404 1419 18 The the DT 40404 1419 19 examples example NNS 40404 1419 20 just just RB 40404 1419 21 cited cite VBD 40404 1419 22 teach teach VBP 40404 1419 23 clearly clearly RB 40404 1419 24 the the DT 40404 1419 25 characteristic characteristic JJ 40404 1419 26 features feature NNS 40404 1419 27 of of IN 40404 1419 28 extensive extensive JJ 40404 1419 29 river river NN 40404 1419 30 deposits deposit NNS 40404 1419 31 . . . 40404 1420 1 These these DT 40404 1420 2 deposits deposit NNS 40404 1420 3 consist consist VBP 40404 1420 4 of of IN 40404 1420 5 broad broad JJ 40404 1420 6 , , , 40404 1420 7 flat flat RB 40404 1420 8 - - HYPH 40404 1420 9 lying lie VBG 40404 1420 10 sheets sheet NNS 40404 1420 11 of of IN 40404 1420 12 clay clay NN 40404 1420 13 and and CC 40404 1420 14 fine fine JJ 40404 1420 15 sand sand NN 40404 1420 16 left leave VBN 40404 1420 17 by by IN 40404 1420 18 the the DT 40404 1420 19 overflow overflow NN 40404 1420 20 at at IN 40404 1420 21 time time NN 40404 1420 22 of of IN 40404 1420 23 flood flood NN 40404 1420 24 , , , 40404 1420 25 and and CC 40404 1420 26 traversed traverse VBN 40404 1420 27 here here RB 40404 1420 28 and and CC 40404 1420 29 there there RB 40404 1420 30 by by IN 40404 1420 31 long long JJ 40404 1420 32 , , , 40404 1420 33 narrow narrow JJ 40404 1420 34 strips strip NNS 40404 1420 35 of of IN 40404 1420 36 coarse coarse JJ 40404 1420 37 , , , 40404 1420 38 cross cross JJ 40404 1420 39 - - JJ 40404 1420 40 bedded bedded JJ 40404 1420 41 sands sand NNS 40404 1420 42 and and CC 40404 1420 43 gravels gravel NNS 40404 1420 44 thrown throw VBN 40404 1420 45 down down RP 40404 1420 46 by by IN 40404 1420 47 the the DT 40404 1420 48 swifter swifter JJ 40404 1420 49 currents current NNS 40404 1420 50 of of IN 40404 1420 51 the the DT 40404 1420 52 shifting shift VBG 40404 1420 53 channels channel NNS 40404 1420 54 . . . 40404 1421 1 Occasional occasional JJ 40404 1421 2 beds bed NNS 40404 1421 3 of of IN 40404 1421 4 muck muck NN 40404 1421 5 mark mark NN 40404 1421 6 the the DT 40404 1421 7 sites site NNS 40404 1421 8 of of IN 40404 1421 9 shallow shallow JJ 40404 1421 10 lakelets lakelet NNS 40404 1421 11 or or CC 40404 1421 12 fresh fresh JJ 40404 1421 13 - - HYPH 40404 1421 14 water water NN 40404 1421 15 swamps swamp NNS 40404 1421 16 . . . 40404 1422 1 The the DT 40404 1422 2 various various JJ 40404 1422 3 strata strata NN 40404 1422 4 also also RB 40404 1422 5 contain contain VBP 40404 1422 6 some some DT 40404 1422 7 remains remain NNS 40404 1422 8 of of IN 40404 1422 9 the the DT 40404 1422 10 countless countless JJ 40404 1422 11 myriads myriad NNS 40404 1422 12 of of IN 40404 1422 13 animals animal NNS 40404 1422 14 and and CC 40404 1422 15 plants plant NNS 40404 1422 16 which which WDT 40404 1422 17 live live VBP 40404 1422 18 upon upon IN 40404 1422 19 the the DT 40404 1422 20 surface surface NN 40404 1422 21 of of IN 40404 1422 22 the the DT 40404 1422 23 plain plain NN 40404 1422 24 as as IN 40404 1422 25 it -PRON- PRP 40404 1422 26 is be VBZ 40404 1422 27 in in IN 40404 1422 28 process process NN 40404 1422 29 of of IN 40404 1422 30 building build VBG 40404 1422 31 . . . 40404 1423 1 River river NN 40404 1423 2 shells shell NNS 40404 1423 3 such such JJ 40404 1423 4 as as IN 40404 1423 5 the the DT 40404 1423 6 mussel mussel NN 40404 1423 7 , , , 40404 1423 8 land land NN 40404 1423 9 shells shell NNS 40404 1423 10 such such JJ 40404 1423 11 as as IN 40404 1423 12 those those DT 40404 1423 13 of of IN 40404 1423 14 snails snail NNS 40404 1423 15 , , , 40404 1423 16 the the DT 40404 1423 17 bones bone NNS 40404 1423 18 of of IN 40404 1423 19 fishes fish NNS 40404 1423 20 and and CC 40404 1423 21 of of IN 40404 1423 22 such such JJ 40404 1423 23 land land NN 40404 1423 24 animals animal NNS 40404 1423 25 as as IN 40404 1423 26 suffer suffer VBP 40404 1423 27 drowning drown VBG 40404 1423 28 at at IN 40404 1423 29 times time NNS 40404 1423 30 of of IN 40404 1423 31 flood flood NN 40404 1423 32 or or CC 40404 1423 33 are be VBP 40404 1423 34 mired mire VBN 40404 1423 35 in in IN 40404 1423 36 swampy swampy JJ 40404 1423 37 places place NNS 40404 1423 38 , , , 40404 1423 39 logs log NNS 40404 1423 40 of of IN 40404 1423 41 wood wood NN 40404 1423 42 , , , 40404 1423 43 and and CC 40404 1423 44 the the DT 40404 1423 45 stems stem NNS 40404 1423 46 and and CC 40404 1423 47 leaves leave NNS 40404 1423 48 of of IN 40404 1423 49 plants plant NNS 40404 1423 50 are be VBP 40404 1423 51 examples example NNS 40404 1423 52 of of IN 40404 1423 53 the the DT 40404 1423 54 variety variety NN 40404 1423 55 of of IN 40404 1423 56 the the DT 40404 1423 57 remains remain NNS 40404 1423 58 of of IN 40404 1423 59 land land NN 40404 1423 60 and and CC 40404 1423 61 fresh fresh JJ 40404 1423 62 - - HYPH 40404 1423 63 water water NN 40404 1423 64 organisms organism NNS 40404 1423 65 which which WDT 40404 1423 66 are be VBP 40404 1423 67 entombed entomb VBN 40404 1423 68 in in IN 40404 1423 69 river river NN 40404 1423 70 deposits deposit NNS 40404 1423 71 and and CC 40404 1423 72 sealed seal VBD 40404 1423 73 away away RB 40404 1423 74 as as IN 40404 1423 75 a a DT 40404 1423 76 record record NN 40404 1423 77 of of IN 40404 1423 78 the the DT 40404 1423 79 life life NN 40404 1423 80 of of IN 40404 1423 81 the the DT 40404 1423 82 time time NN 40404 1423 83 , , , 40404 1423 84 and and CC 40404 1423 85 as as IN 40404 1423 86 proof proof NN 40404 1423 87 that that IN 40404 1423 88 the the DT 40404 1423 89 deposits deposit NNS 40404 1423 90 were be VBD 40404 1423 91 laid lay VBN 40404 1423 92 by by IN 40404 1423 93 streams stream NNS 40404 1423 94 and and CC 40404 1423 95 not not RB 40404 1423 96 beneath beneath IN 40404 1423 97 the the DT 40404 1423 98 sea sea NN 40404 1423 99 . . . 40404 1424 1 Basin basin NN 40404 1424 2 Deposits deposit VBZ 40404 1424 3 = = SYM 40404 1424 4 Deposits deposit NNS 40404 1424 5 in in IN 40404 1424 6 dry dry JJ 40404 1424 7 basins.= basins.= NN 40404 1424 8 On on IN 40404 1424 9 desert desert NN 40404 1424 10 areas area NNS 40404 1424 11 without without IN 40404 1424 12 outlet outlet NN 40404 1424 13 to to IN 40404 1424 14 the the DT 40404 1424 15 sea sea NN 40404 1424 16 , , , 40404 1424 17 as as IN 40404 1424 18 on on IN 40404 1424 19 the the DT 40404 1424 20 Great Great NNP 40404 1424 21 Basin Basin NNP 40404 1424 22 of of IN 40404 1424 23 the the DT 40404 1424 24 United United NNP 40404 1424 25 States States NNP 40404 1424 26 and and CC 40404 1424 27 the the DT 40404 1424 28 deserts desert NNS 40404 1424 29 of of IN 40404 1424 30 central central JJ 40404 1424 31 Asia Asia NNP 40404 1424 32 , , , 40404 1424 33 stream stream NN 40404 1424 34 - - HYPH 40404 1424 35 swept sweep VBN 40404 1424 36 waste waste NN 40404 1424 37 accumulates accumulate NNS 40404 1424 38 indefinitely indefinitely RB 40404 1424 39 . . . 40404 1425 1 The the DT 40404 1425 2 rivers river NNS 40404 1425 3 of of IN 40404 1425 4 the the DT 40404 1425 5 surrounding surround VBG 40404 1425 6 mountains mountain NNS 40404 1425 7 , , , 40404 1425 8 fed feed VBN 40404 1425 9 by by IN 40404 1425 10 the the DT 40404 1425 11 rains rain NNS 40404 1425 12 and and CC 40404 1425 13 melting melting NN 40404 1425 14 snows snow NNS 40404 1425 15 of of IN 40404 1425 16 these these DT 40404 1425 17 comparatively comparatively RB 40404 1425 18 moist moist JJ 40404 1425 19 elevations elevation NNS 40404 1425 20 , , , 40404 1425 21 dry dry JJ 40404 1425 22 and and CC 40404 1425 23 soak soak VB 40404 1425 24 away away RP 40404 1425 25 as as IN 40404 1425 26 they -PRON- PRP 40404 1425 27 come come VBP 40404 1425 28 down down RP 40404 1425 29 upon upon IN 40404 1425 30 the the DT 40404 1425 31 arid arid NN 40404 1425 32 plains plain NNS 40404 1425 33 . . . 40404 1426 1 They -PRON- PRP 40404 1426 2 are be VBP 40404 1426 3 compelled compel VBN 40404 1426 4 to to TO 40404 1426 5 lay lay VB 40404 1426 6 aside aside RB 40404 1426 7 their -PRON- PRP$ 40404 1426 8 entire entire JJ 40404 1426 9 load load NN 40404 1426 10 of of IN 40404 1426 11 waste waste NN 40404 1426 12 eroded erode VBN 40404 1426 13 from from IN 40404 1426 14 the the DT 40404 1426 15 mountain mountain NN 40404 1426 16 valleys valley NNS 40404 1426 17 , , , 40404 1426 18 in in IN 40404 1426 19 fans fan NNS 40404 1426 20 which which WDT 40404 1426 21 grow grow VBP 40404 1426 22 to to IN 40404 1426 23 enormous enormous JJ 40404 1426 24 size size NN 40404 1426 25 , , , 40404 1426 26 reaching reach VBG 40404 1426 27 in in IN 40404 1426 28 some some DT 40404 1426 29 instances instance NNS 40404 1426 30 thousands thousand NNS 40404 1426 31 of of IN 40404 1426 32 feet foot NNS 40404 1426 33 in in IN 40404 1426 34 thickness thickness NN 40404 1426 35 . . . 40404 1427 1 The the DT 40404 1427 2 monotonous monotonous JJ 40404 1427 3 levels level NNS 40404 1427 4 of of IN 40404 1427 5 Turkestan Turkestan NNP 40404 1427 6 include include VBP 40404 1427 7 vast vast JJ 40404 1427 8 alluvial alluvial JJ 40404 1427 9 tracts tract NNS 40404 1427 10 now now RB 40404 1427 11 in in IN 40404 1427 12 process process NN 40404 1427 13 of of IN 40404 1427 14 building build VBG 40404 1427 15 by by IN 40404 1427 16 the the DT 40404 1427 17 floods flood NNS 40404 1427 18 of of IN 40404 1427 19 the the DT 40404 1427 20 frequently frequently RB 40404 1427 21 shifting shift VBG 40404 1427 22 channels channel NNS 40404 1427 23 of of IN 40404 1427 24 the the DT 40404 1427 25 Oxus Oxus NNP 40404 1427 26 and and CC 40404 1427 27 other other JJ 40404 1427 28 rivers river NNS 40404 1427 29 of of IN 40404 1427 30 the the DT 40404 1427 31 region region NN 40404 1427 32 . . . 40404 1428 1 For for IN 40404 1428 2 about about RB 40404 1428 3 seven seven CD 40404 1428 4 hundred hundred CD 40404 1428 5 miles mile NNS 40404 1428 6 from from IN 40404 1428 7 its -PRON- PRP$ 40404 1428 8 mouth mouth NN 40404 1428 9 in in IN 40404 1428 10 Aral Aral NNP 40404 1428 11 Lake Lake NNP 40404 1428 12 the the DT 40404 1428 13 Oxus Oxus NNP 40404 1428 14 receives receive VBZ 40404 1428 15 no no DT 40404 1428 16 tributaries tributary NNS 40404 1428 17 , , , 40404 1428 18 since since IN 40404 1428 19 even even RB 40404 1428 20 the the DT 40404 1428 21 larger large JJR 40404 1428 22 branches branch NNS 40404 1428 23 of of IN 40404 1428 24 its -PRON- PRP$ 40404 1428 25 system system NN 40404 1428 26 are be VBP 40404 1428 27 lost lose VBN 40404 1428 28 in in IN 40404 1428 29 a a DT 40404 1428 30 network network NN 40404 1428 31 of of IN 40404 1428 32 distributaries distributary NNS 40404 1428 33 and and CC 40404 1428 34 choked choke VBN 40404 1428 35 with with IN 40404 1428 36 desert desert NN 40404 1428 37 sands sand NNS 40404 1428 38 before before IN 40404 1428 39 they -PRON- PRP 40404 1428 40 reach reach VBP 40404 1428 41 their -PRON- PRP$ 40404 1428 42 master master NN 40404 1428 43 stream stream NN 40404 1428 44 . . . 40404 1429 1 These these DT 40404 1429 2 aggrading aggrade VBG 40404 1429 3 rivers river NNS 40404 1429 4 , , , 40404 1429 5 which which WDT 40404 1429 6 have have VBP 40404 1429 7 channels channel NNS 40404 1429 8 but but CC 40404 1429 9 no no DT 40404 1429 10 valleys valley NNS 40404 1429 11 , , , 40404 1429 12 spread spread VBP 40404 1429 13 their -PRON- PRP$ 40404 1429 14 muddy muddy JJ 40404 1429 15 floods flood NNS 40404 1429 16 -- -- : 40404 1429 17 which which WDT 40404 1429 18 in in IN 40404 1429 19 the the DT 40404 1429 20 case case NN 40404 1429 21 of of IN 40404 1429 22 the the DT 40404 1429 23 Oxus Oxus NNP 40404 1429 24 sometimes sometimes RB 40404 1429 25 equal equal VBP 40404 1429 26 the the DT 40404 1429 27 average average JJ 40404 1429 28 volume volume NN 40404 1429 29 of of IN 40404 1429 30 the the DT 40404 1429 31 Mississippi Mississippi NNP 40404 1429 32 -- -- : 40404 1429 33 far far RB 40404 1429 34 and and CC 40404 1429 35 wide wide RB 40404 1429 36 over over IN 40404 1429 37 the the DT 40404 1429 38 plain plain JJ 40404 1429 39 , , , 40404 1429 40 washing wash VBG 40404 1429 41 the the DT 40404 1429 42 bases basis NNS 40404 1429 43 of of IN 40404 1429 44 the the DT 40404 1429 45 desert desert NN 40404 1429 46 dunes dune NNS 40404 1429 47 . . . 40404 1430 1 = = NFP 40404 1430 2 Playas.= Playas.= NNP 40404 1430 3 In in IN 40404 1430 4 arid arid NN 40404 1430 5 interior interior JJ 40404 1430 6 basins basin VBZ 40404 1430 7 the the DT 40404 1430 8 central central JJ 40404 1430 9 depressions depression NNS 40404 1430 10 may may MD 40404 1430 11 be be VB 40404 1430 12 occupied occupy VBN 40404 1430 13 by by IN 40404 1430 14 playas,--plains playas,--plain NNS 40404 1430 15 of of IN 40404 1430 16 fine fine JJ 40404 1430 17 mud mud NN 40404 1430 18 washed wash VBD 40404 1430 19 forward forward RB 40404 1430 20 from from IN 40404 1430 21 the the DT 40404 1430 22 margins margin NNS 40404 1430 23 . . . 40404 1431 1 In in IN 40404 1431 2 the the DT 40404 1431 3 wet wet JJ 40404 1431 4 season season NN 40404 1431 5 the the DT 40404 1431 6 playa playa NN 40404 1431 7 is be VBZ 40404 1431 8 covered cover VBN 40404 1431 9 with with IN 40404 1431 10 a a DT 40404 1431 11 thin thin JJ 40404 1431 12 sheet sheet NN 40404 1431 13 of of IN 40404 1431 14 muddy muddy JJ 40404 1431 15 water water NN 40404 1431 16 , , , 40404 1431 17 a a DT 40404 1431 18 playa playa NN 40404 1431 19 lake lake NN 40404 1431 20 , , , 40404 1431 21 supplied supply VBN 40404 1431 22 usually usually RB 40404 1431 23 by by IN 40404 1431 24 some some DT 40404 1431 25 stream stream NN 40404 1431 26 at at IN 40404 1431 27 flood flood NN 40404 1431 28 . . . 40404 1432 1 In in IN 40404 1432 2 the the DT 40404 1432 3 dry dry JJ 40404 1432 4 season season NN 40404 1432 5 the the DT 40404 1432 6 lake lake NN 40404 1432 7 evaporates evaporate VBZ 40404 1432 8 , , , 40404 1432 9 the the DT 40404 1432 10 river river NN 40404 1432 11 which which WDT 40404 1432 12 fed feed VBD 40404 1432 13 it -PRON- PRP 40404 1432 14 retreats retreat VBZ 40404 1432 15 , , , 40404 1432 16 and and CC 40404 1432 17 there there EX 40404 1432 18 is be VBZ 40404 1432 19 left leave VBN 40404 1432 20 to to TO 40404 1432 21 view view VB 40404 1432 22 a a DT 40404 1432 23 hard hard JJ 40404 1432 24 , , , 40404 1432 25 smooth smooth JJ 40404 1432 26 , , , 40404 1432 27 level level JJ 40404 1432 28 floor floor NN 40404 1432 29 of of IN 40404 1432 30 sun sun NN 40404 1432 31 - - HYPH 40404 1432 32 baked baked JJ 40404 1432 33 and and CC 40404 1432 34 sun sun NN 40404 1432 35 - - HYPH 40404 1432 36 cracked crack VBN 40404 1432 37 yellow yellow JJ 40404 1432 38 clay clay NN 40404 1432 39 utterly utterly RB 40404 1432 40 devoid devoid JJ 40404 1432 41 of of IN 40404 1432 42 vegetation vegetation NN 40404 1432 43 . . . 40404 1433 1 In in IN 40404 1433 2 the the DT 40404 1433 3 Black Black NNP 40404 1433 4 Rock Rock NNP 40404 1433 5 desert desert NN 40404 1433 6 of of IN 40404 1433 7 Nevada Nevada NNP 40404 1433 8 a a DT 40404 1433 9 playa playa NN 40404 1433 10 lake lake NN 40404 1433 11 spreads spread VBZ 40404 1433 12 over over IN 40404 1433 13 an an DT 40404 1433 14 area area NN 40404 1433 15 fifty fifty CD 40404 1433 16 miles mile NNS 40404 1433 17 long long JJ 40404 1433 18 and and CC 40404 1433 19 twenty twenty CD 40404 1433 20 miles mile NNS 40404 1433 21 wide wide JJ 40404 1433 22 . . . 40404 1434 1 In in IN 40404 1434 2 summer summer NN 40404 1434 3 it -PRON- PRP 40404 1434 4 disappears disappear VBZ 40404 1434 5 ; ; : 40404 1434 6 the the DT 40404 1434 7 Quinn Quinn NNP 40404 1434 8 River River NNP 40404 1434 9 , , , 40404 1434 10 which which WDT 40404 1434 11 feeds feed VBZ 40404 1434 12 it -PRON- PRP 40404 1434 13 , , , 40404 1434 14 shrinks shrink VBZ 40404 1434 15 back back RB 40404 1434 16 one one CD 40404 1434 17 hundred hundred CD 40404 1434 18 miles mile NNS 40404 1434 19 toward toward IN 40404 1434 20 its -PRON- PRP$ 40404 1434 21 source source NN 40404 1434 22 , , , 40404 1434 23 leaving leave VBG 40404 1434 24 an an DT 40404 1434 25 absolutely absolutely RB 40404 1434 26 barren barren JJ 40404 1434 27 floor floor NN 40404 1434 28 of of IN 40404 1434 29 clay clay NN 40404 1434 30 , , , 40404 1434 31 level level NN 40404 1434 32 as as IN 40404 1434 33 the the DT 40404 1434 34 sea sea NN 40404 1434 35 . . . 40404 1435 1 = = NFP 40404 1435 2 Lake Lake NNP 40404 1435 3 deposits.= deposits.= NNP 40404 1435 4 Regarding regard VBG 40404 1435 5 lakes lake NNS 40404 1435 6 as as IN 40404 1435 7 parts part NNS 40404 1435 8 of of IN 40404 1435 9 river river NN 40404 1435 10 systems system NNS 40404 1435 11 , , , 40404 1435 12 we -PRON- PRP 40404 1435 13 may may MD 40404 1435 14 now now RB 40404 1435 15 notice notice VB 40404 1435 16 the the DT 40404 1435 17 characteristic characteristic JJ 40404 1435 18 features feature NNS 40404 1435 19 of of IN 40404 1435 20 the the DT 40404 1435 21 deposits deposit NNS 40404 1435 22 in in IN 40404 1435 23 lake lake NNP 40404 1435 24 basins basin NNS 40404 1435 25 . . . 40404 1436 1 Soundings sounding NNS 40404 1436 2 in in IN 40404 1436 3 lakes lake NNS 40404 1436 4 of of IN 40404 1436 5 considerable considerable JJ 40404 1436 6 size size NN 40404 1436 7 and and CC 40404 1436 8 depth depth NN 40404 1436 9 show show NN 40404 1436 10 that that IN 40404 1436 11 their -PRON- PRP$ 40404 1436 12 bottoms bottom NNS 40404 1436 13 are be VBP 40404 1436 14 being be VBG 40404 1436 15 covered cover VBN 40404 1436 16 with with IN 40404 1436 17 tine tine NN 40404 1436 18 clays clay NNS 40404 1436 19 . . . 40404 1437 1 Sand sand NN 40404 1437 2 and and CC 40404 1437 3 gravel gravel NN 40404 1437 4 are be VBP 40404 1437 5 found find VBN 40404 1437 6 along along RB 40404 1437 7 ; ; : 40404 1437 8 their -PRON- PRP$ 40404 1437 9 margins margin NNS 40404 1437 10 , , , 40404 1437 11 being be VBG 40404 1437 12 brought bring VBN 40404 1437 13 in in RP 40404 1437 14 by by IN 40404 1437 15 streams stream NNS 40404 1437 16 and and CC 40404 1437 17 worn wear VBN 40404 1437 18 by by IN 40404 1437 19 waves wave NNS 40404 1437 20 from from IN 40404 1437 21 the the DT 40404 1437 22 shore shore NN 40404 1437 23 , , , 40404 1437 24 but but CC 40404 1437 25 there there EX 40404 1437 26 are be VBP 40404 1437 27 no no DT 40404 1437 28 tidal tidal JJ 40404 1437 29 or or CC 40404 1437 30 other other JJ 40404 1437 31 strong strong JJ 40404 1437 32 currents current NNS 40404 1437 33 to to TO 40404 1437 34 sweep sweep VB 40404 1437 35 coarse coarse JJ 40404 1437 36 waste waste NN 40404 1437 37 out out RP 40404 1437 38 from from IN 40404 1437 39 shore shore NN 40404 1437 40 to to IN 40404 1437 41 any any DT 40404 1437 42 considerable considerable JJ 40404 1437 43 distance distance NN 40404 1437 44 . . . 40404 1438 1 Where where WRB 40404 1438 2 fine fine JJ 40404 1438 3 clays clay NNS 40404 1438 4 are be VBP 40404 1438 5 now now RB 40404 1438 6 found find VBN 40404 1438 7 on on IN 40404 1438 8 the the DT 40404 1438 9 land land NN 40404 1438 10 in in IN 40404 1438 11 even even RB 40404 1438 12 , , , 40404 1438 13 horizontal horizontal JJ 40404 1438 14 layers layer NNS 40404 1438 15 containing contain VBG 40404 1438 16 the the DT 40404 1438 17 remains remain NNS 40404 1438 18 of of IN 40404 1438 19 fresh fresh JJ 40404 1438 20 - - HYPH 40404 1438 21 water water NN 40404 1438 22 animals animal NNS 40404 1438 23 and and CC 40404 1438 24 plants plant NNS 40404 1438 25 , , , 40404 1438 26 uncut uncut JJ 40404 1438 27 by by IN 40404 1438 28 channels channel NNS 40404 1438 29 tilled till VBN 40404 1438 30 with with IN 40404 1438 31 cross cross JJ 40404 1438 32 - - JJ 40404 1438 33 bedded bedded JJ 40404 1438 34 gravels gravel NNS 40404 1438 35 and and CC 40404 1438 36 sands sand NNS 40404 1438 37 and and CC 40404 1438 38 bordered border VBN 40404 1438 39 by by IN 40404 1438 40 beach beach NN 40404 1438 41 deposits deposit NNS 40404 1438 42 of of IN 40404 1438 43 coarse coarse JJ 40404 1438 44 waste waste NN 40404 1438 45 , , , 40404 1438 46 we -PRON- PRP 40404 1438 47 may may MD 40404 1438 48 safely safely RB 40404 1438 49 infer infer VB 40404 1438 50 the the DT 40404 1438 51 existence existence NN 40404 1438 52 of of IN 40404 1438 53 ancient ancient JJ 40404 1438 54 lakes lake NNS 40404 1438 55 . . . 40404 1439 1 = = NFP 40404 1439 2 Marl.= Marl.= NNP 40404 1439 3 Marl Marl NNP 40404 1439 4 is be VBZ 40404 1439 5 a a DT 40404 1439 6 soft soft JJ 40404 1439 7 , , , 40404 1439 8 whitish whitish JJ 40404 1439 9 deposit deposit NN 40404 1439 10 of of IN 40404 1439 11 carbonate carbonate NN 40404 1439 12 of of IN 40404 1439 13 lime lime NN 40404 1439 14 , , , 40404 1439 15 mingled mingle VBN 40404 1439 16 often often RB 40404 1439 17 with with IN 40404 1439 18 more more RBR 40404 1439 19 or or CC 40404 1439 20 less less JJR 40404 1439 21 of of IN 40404 1439 22 clay clay NN 40404 1439 23 , , , 40404 1439 24 accumulated accumulate VBN 40404 1439 25 in in IN 40404 1439 26 small small JJ 40404 1439 27 lakes lake NNS 40404 1439 28 whose whose WP$ 40404 1439 29 feeding feeding NN 40404 1439 30 springs spring NNS 40404 1439 31 are be VBP 40404 1439 32 charged charge VBN 40404 1439 33 with with IN 40404 1439 34 carbonate carbonate NN 40404 1439 35 of of IN 40404 1439 36 lime lime NN 40404 1439 37 and and CC 40404 1439 38 into into IN 40404 1439 39 which which WDT 40404 1439 40 little little JJ 40404 1439 41 waste waste NN 40404 1439 42 is be VBZ 40404 1439 43 washed wash VBN 40404 1439 44 from from IN 40404 1439 45 the the DT 40404 1439 46 land land NN 40404 1439 47 . . . 40404 1440 1 Such such JJ 40404 1440 2 lakelets lakelet NNS 40404 1440 3 are be VBP 40404 1440 4 not not RB 40404 1440 5 infrequent infrequent JJ 40404 1440 6 on on IN 40404 1440 7 the the DT 40404 1440 8 surface surface NN 40404 1440 9 of of IN 40404 1440 10 the the DT 40404 1440 11 younger young JJR 40404 1440 12 drift drift NN 40404 1440 13 sheets sheet NNS 40404 1440 14 of of IN 40404 1440 15 Michigan Michigan NNP 40404 1440 16 and and CC 40404 1440 17 northern northern JJ 40404 1440 18 Indiana Indiana NNP 40404 1440 19 , , , 40404 1440 20 where where WRB 40404 1440 21 their -PRON- PRP$ 40404 1440 22 beds bed NNS 40404 1440 23 of of IN 40404 1440 24 marl marl NNP 40404 1440 25 -- -- : 40404 1440 26 sometimes sometimes RB 40404 1440 27 as as RB 40404 1440 28 much much JJ 40404 1440 29 as as IN 40404 1440 30 forty forty CD 40404 1440 31 feet foot NNS 40404 1440 32 thick thick JJ 40404 1440 33 -- -- : 40404 1440 34 are be VBP 40404 1440 35 utilized utilize VBN 40404 1440 36 in in IN 40404 1440 37 the the DT 40404 1440 38 manufacture manufacture NN 40404 1440 39 of of IN 40404 1440 40 Portland Portland NNP 40404 1440 41 cement cement NN 40404 1440 42 . . . 40404 1441 1 The the DT 40404 1441 2 deposit deposit NN 40404 1441 3 results result VBZ 40404 1441 4 from from IN 40404 1441 5 the the DT 40404 1441 6 decay decay NN 40404 1441 7 of of IN 40404 1441 8 certain certain JJ 40404 1441 9 aquatic aquatic JJ 40404 1441 10 plants plant NNS 40404 1441 11 which which WDT 40404 1441 12 secrete secrete VBP 40404 1441 13 lime lime NN 40404 1441 14 carbonate carbonate NN 40404 1441 15 from from IN 40404 1441 16 the the DT 40404 1441 17 water water NN 40404 1441 18 , , , 40404 1441 19 from from IN 40404 1441 20 the the DT 40404 1441 21 decomposition decomposition NN 40404 1441 22 of of IN 40404 1441 23 the the DT 40404 1441 24 calcareous calcareous JJ 40404 1441 25 shells shell NNS 40404 1441 26 of of IN 40404 1441 27 tiny tiny JJ 40404 1441 28 mollusks mollusk NNS 40404 1441 29 which which WDT 40404 1441 30 live live VBP 40404 1441 31 in in IN 40404 1441 32 countless countless JJ 40404 1441 33 numbers number NNS 40404 1441 34 on on IN 40404 1441 35 the the DT 40404 1441 36 lake lake NN 40404 1441 37 floor floor NN 40404 1441 38 , , , 40404 1441 39 and and CC 40404 1441 40 in in IN 40404 1441 41 some some DT 40404 1441 42 cases case NNS 40404 1441 43 apparently apparently RB 40404 1441 44 from from IN 40404 1441 45 chemical chemical NN 40404 1441 46 precipitation precipitation NN 40404 1441 47 . . . 40404 1442 1 = = NFP 40404 1442 2 Peat.= Peat.= NNP 40404 1442 3 We -PRON- PRP 40404 1442 4 have have VBP 40404 1442 5 seen see VBN 40404 1442 6 how how WRB 40404 1442 7 lakelets lakelet NNS 40404 1442 8 are be VBP 40404 1442 9 extinguished extinguish VBN 40404 1442 10 by by IN 40404 1442 11 the the DT 40404 1442 12 decaying decay VBG 40404 1442 13 remains remain NNS 40404 1442 14 of of IN 40404 1442 15 the the DT 40404 1442 16 vegetation vegetation NN 40404 1442 17 which which WDT 40404 1442 18 they -PRON- PRP 40404 1442 19 support support VBP 40404 1442 20 . . . 40404 1443 1 A a DT 40404 1443 2 section section NN 40404 1443 3 of of IN 40404 1443 4 such such PDT 40404 1443 5 a a DT 40404 1443 6 fossil fossil NN 40404 1443 7 lake lake NN 40404 1443 8 shows show VBZ 40404 1443 9 that that IN 40404 1443 10 below below IN 40404 1443 11 the the DT 40404 1443 12 growing grow VBG 40404 1443 13 mosses moss NNS 40404 1443 14 and and CC 40404 1443 15 other other JJ 40404 1443 16 plants plant NNS 40404 1443 17 of of IN 40404 1443 18 the the DT 40404 1443 19 surface surface NN 40404 1443 20 of of IN 40404 1443 21 the the DT 40404 1443 22 bog bog NN 40404 1443 23 lies lie VBZ 40404 1443 24 a a DT 40404 1443 25 spongy spongy JJ 40404 1443 26 mass mass NN 40404 1443 27 composed compose VBN 40404 1443 28 of of IN 40404 1443 29 dead dead JJ 40404 1443 30 vegetable vegetable NN 40404 1443 31 tissue tissue NN 40404 1443 32 , , , 40404 1443 33 which which WDT 40404 1443 34 passes pass VBZ 40404 1443 35 downward downward RB 40404 1443 36 gradually gradually RB 40404 1443 37 into into IN 40404 1443 38 _ _ NNP 40404 1443 39 peat_,--a peat_,--a NN 40404 1443 40 dense dense JJ 40404 1443 41 , , , 40404 1443 42 dark dark JJ 40404 1443 43 brown brown JJ 40404 1443 44 carbonaceous carbonaceous JJ 40404 1443 45 deposit deposit NN 40404 1443 46 in in IN 40404 1443 47 which which WDT 40404 1443 48 , , , 40404 1443 49 to to IN 40404 1443 50 the the DT 40404 1443 51 unaided unaided JJ 40404 1443 52 eye eye NN 40404 1443 53 , , , 40404 1443 54 little little JJ 40404 1443 55 or or CC 40404 1443 56 no no DT 40404 1443 57 trace trace NN 40404 1443 58 of of IN 40404 1443 59 vegetable vegetable NN 40404 1443 60 structure structure NN 40404 1443 61 remains remain VBZ 40404 1443 62 . . . 40404 1444 1 When when WRB 40404 1444 2 dried dry VBN 40404 1444 3 , , , 40404 1444 4 peat peat VB 40404 1444 5 forms form NNS 40404 1444 6 a a DT 40404 1444 7 fuel fuel NN 40404 1444 8 of of IN 40404 1444 9 some some DT 40404 1444 10 value value NN 40404 1444 11 and and CC 40404 1444 12 is be VBZ 40404 1444 13 used use VBN 40404 1444 14 either either CC 40404 1444 15 cut cut VBN 40404 1444 16 into into IN 40404 1444 17 slabs slab NNS 40404 1444 18 and and CC 40404 1444 19 dried dry VBN 40404 1444 20 or or CC 40404 1444 21 pressed press VBN 40404 1444 22 into into IN 40404 1444 23 bricks brick NNS 40404 1444 24 by by IN 40404 1444 25 machinery machinery NN 40404 1444 26 . . . 40404 1445 1 [ [ -LRB- 40404 1445 2 Illustration illustration NN 40404 1445 3 : : : 40404 1445 4 Fig Fig NNP 40404 1445 5 . . . 40404 1446 1 82 82 CD 40404 1446 2 . . . 40404 1447 1 Digging Digging NNP 40404 1447 2 Peat Peat NNP 40404 1447 3 , , , 40404 1447 4 Scotland Scotland NNP 40404 1447 5 ] ] -RRB- 40404 1447 6 When when WRB 40404 1447 7 vegetation vegetation NN 40404 1447 8 decays decay VBZ 40404 1447 9 in in IN 40404 1447 10 open open JJ 40404 1447 11 air air NN 40404 1447 12 the the DT 40404 1447 13 carbon carbon NN 40404 1447 14 of of IN 40404 1447 15 its -PRON- PRP$ 40404 1447 16 tissues tissue NNS 40404 1447 17 , , , 40404 1447 18 taken take VBN 40404 1447 19 from from IN 40404 1447 20 the the DT 40404 1447 21 atmosphere atmosphere NN 40404 1447 22 by by IN 40404 1447 23 the the DT 40404 1447 24 leaves leave NNS 40404 1447 25 , , , 40404 1447 26 is be VBZ 40404 1447 27 oxidized oxidize VBN 40404 1447 28 and and CC 40404 1447 29 returned return VBN 40404 1447 30 to to IN 40404 1447 31 it -PRON- PRP 40404 1447 32 in in IN 40404 1447 33 its -PRON- PRP$ 40404 1447 34 original original JJ 40404 1447 35 form form NN 40404 1447 36 of of IN 40404 1447 37 carbon carbon NN 40404 1447 38 dioxide dioxide NN 40404 1447 39 . . . 40404 1448 1 But but CC 40404 1448 2 decomposing decompose VBG 40404 1448 3 in in IN 40404 1448 4 the the DT 40404 1448 5 presence presence NN 40404 1448 6 of of IN 40404 1448 7 water water NN 40404 1448 8 , , , 40404 1448 9 as as IN 40404 1448 10 in in IN 40404 1448 11 a a DT 40404 1448 12 bog bog NN 40404 1448 13 , , , 40404 1448 14 where where WRB 40404 1448 15 the the DT 40404 1448 16 oxygen oxygen NN 40404 1448 17 of of IN 40404 1448 18 the the DT 40404 1448 19 air air NN 40404 1448 20 is be VBZ 40404 1448 21 excluded exclude VBN 40404 1448 22 , , , 40404 1448 23 the the DT 40404 1448 24 carbonaceous carbonaceous JJ 40404 1448 25 matter matter NN 40404 1448 26 of of IN 40404 1448 27 plants plant NNS 40404 1448 28 accumulates accumulate NNS 40404 1448 29 in in IN 40404 1448 30 deposits deposit NNS 40404 1448 31 of of IN 40404 1448 32 peat peat NN 40404 1448 33 . . . 40404 1449 1 Peat Peat NNP 40404 1449 2 bogs bog NNS 40404 1449 3 are be VBP 40404 1449 4 numerous numerous JJ 40404 1449 5 in in IN 40404 1449 6 regions region NNS 40404 1449 7 lately lately RB 40404 1449 8 abandoned abandon VBN 40404 1449 9 by by IN 40404 1449 10 glacier glacier NN 40404 1449 11 ice ice NNP 40404 1449 12 , , , 40404 1449 13 where where WRB 40404 1449 14 river river NN 40404 1449 15 systems system NNS 40404 1449 16 are be VBP 40404 1449 17 so so RB 40404 1449 18 immature immature JJ 40404 1449 19 that that IN 40404 1449 20 the the DT 40404 1449 21 initial initial JJ 40404 1449 22 depressions depression NNS 40404 1449 23 left leave VBN 40404 1449 24 in in IN 40404 1449 25 the the DT 40404 1449 26 sheet sheet NN 40404 1449 27 of of IN 40404 1449 28 drift drift NN 40404 1449 29 spread spread VBD 40404 1449 30 over over IN 40404 1449 31 the the DT 40404 1449 32 country country NN 40404 1449 33 have have VBP 40404 1449 34 not not RB 40404 1449 35 yet yet RB 40404 1449 36 been be VBN 40404 1449 37 drained drain VBN 40404 1449 38 . . . 40404 1450 1 One one CD 40404 1450 2 tenth tenth NN 40404 1450 3 of of IN 40404 1450 4 the the DT 40404 1450 5 surface surface NN 40404 1450 6 of of IN 40404 1450 7 Ireland Ireland NNP 40404 1450 8 is be VBZ 40404 1450 9 said say VBN 40404 1450 10 to to TO 40404 1450 11 be be VB 40404 1450 12 covered cover VBN 40404 1450 13 with with IN 40404 1450 14 peat peat NN 40404 1450 15 , , , 40404 1450 16 and and CC 40404 1450 17 small small JJ 40404 1450 18 bogs bog NNS 40404 1450 19 abound abound VBP 40404 1450 20 in in IN 40404 1450 21 the the DT 40404 1450 22 drift drift NN 40404 1450 23 - - HYPH 40404 1450 24 covered cover VBN 40404 1450 25 area area NN 40404 1450 26 of of IN 40404 1450 27 New New NNP 40404 1450 28 England England NNP 40404 1450 29 and and CC 40404 1450 30 the the DT 40404 1450 31 states state NNS 40404 1450 32 lying lie VBG 40404 1450 33 as as IN 40404 1450 34 far far RB 40404 1450 35 west west NNP 40404 1450 36 as as IN 40404 1450 37 the the DT 40404 1450 38 Missouri Missouri NNP 40404 1450 39 River River NNP 40404 1450 40 . . . 40404 1451 1 In in IN 40404 1451 2 Massachusetts Massachusetts NNP 40404 1451 3 alone alone RB 40404 1451 4 it -PRON- PRP 40404 1451 5 has have VBZ 40404 1451 6 been be VBN 40404 1451 7 reckoned reckon VBN 40404 1451 8 that that IN 40404 1451 9 there there EX 40404 1451 10 are be VBP 40404 1451 11 fifteen fifteen CD 40404 1451 12 billion billion CD 40404 1451 13 cubic cubic JJ 40404 1451 14 feet foot NNS 40404 1451 15 of of IN 40404 1451 16 peat peat NN 40404 1451 17 , , , 40404 1451 18 the the DT 40404 1451 19 largest large JJS 40404 1451 20 bog bog NN 40404 1451 21 occupying occupy VBG 40404 1451 22 several several JJ 40404 1451 23 thousand thousand CD 40404 1451 24 acres acre NNS 40404 1451 25 . . . 40404 1452 1 Much much RB 40404 1452 2 larger large JJR 40404 1452 3 swamps swamp NNS 40404 1452 4 occur occur VBP 40404 1452 5 on on IN 40404 1452 6 the the DT 40404 1452 7 young young JJ 40404 1452 8 coastal coastal JJ 40404 1452 9 plain plain NN 40404 1452 10 of of IN 40404 1452 11 the the DT 40404 1452 12 Atlantic Atlantic NNP 40404 1452 13 from from IN 40404 1452 14 New New NNP 40404 1452 15 Jersey Jersey NNP 40404 1452 16 to to IN 40404 1452 17 Florida Florida NNP 40404 1452 18 . . . 40404 1453 1 The the DT 40404 1453 2 Dismal Dismal NNP 40404 1453 3 Swamp swamp NN 40404 1453 4 , , , 40404 1453 5 for for IN 40404 1453 6 example example NN 40404 1453 7 , , , 40404 1453 8 in in IN 40404 1453 9 Virginia Virginia NNP 40404 1453 10 and and CC 40404 1453 11 North North NNP 40404 1453 12 Carolina Carolina NNP 40404 1453 13 is be VBZ 40404 1453 14 forty forty CD 40404 1453 15 miles mile NNS 40404 1453 16 across across RB 40404 1453 17 . . . 40404 1454 1 It -PRON- PRP 40404 1454 2 is be VBZ 40404 1454 3 covered cover VBN 40404 1454 4 with with IN 40404 1454 5 a a DT 40404 1454 6 dense dense JJ 40404 1454 7 growth growth NN 40404 1454 8 of of IN 40404 1454 9 water water NN 40404 1454 10 - - HYPH 40404 1454 11 loving love VBG 40404 1454 12 trees tree NNS 40404 1454 13 such such JJ 40404 1454 14 as as IN 40404 1454 15 the the DT 40404 1454 16 cypress cypress NN 40404 1454 17 and and CC 40404 1454 18 black black JJ 40404 1454 19 gum gum NN 40404 1454 20 . . . 40404 1455 1 The the DT 40404 1455 2 center center NN 40404 1455 3 of of IN 40404 1455 4 the the DT 40404 1455 5 swamp swamp NN 40404 1455 6 is be VBZ 40404 1455 7 occupied occupy VBN 40404 1455 8 by by IN 40404 1455 9 Lake Lake NNP 40404 1455 10 Drummond Drummond NNP 40404 1455 11 , , , 40404 1455 12 a a DT 40404 1455 13 shallow shallow JJ 40404 1455 14 lake lake NN 40404 1455 15 seven seven CD 40404 1455 16 miles mile NNS 40404 1455 17 in in IN 40404 1455 18 diameter diameter NN 40404 1455 19 , , , 40404 1455 20 with with IN 40404 1455 21 banks bank NNS 40404 1455 22 of of IN 40404 1455 23 pure pure JJ 40404 1455 24 - - HYPH 40404 1455 25 peat peat NN 40404 1455 26 , , , 40404 1455 27 and and CC 40404 1455 28 still still RB 40404 1455 29 narrowing narrow VBG 40404 1455 30 from from IN 40404 1455 31 the the DT 40404 1455 32 encroachment encroachment NN 40404 1455 33 of of IN 40404 1455 34 vegetation vegetation NN 40404 1455 35 along along IN 40404 1455 36 its -PRON- PRP$ 40404 1455 37 borders border NNS 40404 1455 38 . . . 40404 1456 1 = = NFP 40404 1456 2 Salt Salt NNP 40404 1456 3 lakes.= lakes.= NNP 40404 1456 4 In in IN 40404 1456 5 arid arid NN 40404 1456 6 climates climate VBZ 40404 1456 7 a a DT 40404 1456 8 lake lake NN 40404 1456 9 rarely rarely RB 40404 1456 10 receives receive VBZ 40404 1456 11 sufficient sufficient JJ 40404 1456 12 inflow inflow NN 40404 1456 13 to to TO 40404 1456 14 enable enable VB 40404 1456 15 it -PRON- PRP 40404 1456 16 to to TO 40404 1456 17 rise rise VB 40404 1456 18 to to IN 40404 1456 19 the the DT 40404 1456 20 basin basin NN 40404 1456 21 rim rim NN 40404 1456 22 and and CC 40404 1456 23 find find VB 40404 1456 24 an an DT 40404 1456 25 outlet outlet NN 40404 1456 26 . . . 40404 1457 1 Before before IN 40404 1457 2 this this DT 40404 1457 3 height height NN 40404 1457 4 is be VBZ 40404 1457 5 reached reach VBN 40404 1457 6 its -PRON- PRP$ 40404 1457 7 surface surface NN 40404 1457 8 becomes become VBZ 40404 1457 9 large large JJ 40404 1457 10 enough enough RB 40404 1457 11 to to TO 40404 1457 12 discharge discharge VB 40404 1457 13 by by IN 40404 1457 14 evaporation evaporation NN 40404 1457 15 into into IN 40404 1457 16 the the DT 40404 1457 17 dry dry JJ 40404 1457 18 air air NN 40404 1457 19 the the DT 40404 1457 20 amount amount NN 40404 1457 21 of of IN 40404 1457 22 water water NN 40404 1457 23 that that WDT 40404 1457 24 is be VBZ 40404 1457 25 supplied supply VBN 40404 1457 26 by by IN 40404 1457 27 streams stream NNS 40404 1457 28 . . . 40404 1458 1 As as IN 40404 1458 2 such such PDT 40404 1458 3 a a DT 40404 1458 4 lake lake NN 40404 1458 5 has have VBZ 40404 1458 6 no no DT 40404 1458 7 outlet outlet NN 40404 1458 8 , , , 40404 1458 9 the the DT 40404 1458 10 minerals mineral NNS 40404 1458 11 in in IN 40404 1458 12 solution solution NN 40404 1458 13 brought bring VBN 40404 1458 14 into into IN 40404 1458 15 it -PRON- PRP 40404 1458 16 by by IN 40404 1458 17 its -PRON- PRP$ 40404 1458 18 streams stream NNS 40404 1458 19 can can MD 40404 1458 20 not not RB 40404 1458 21 escape escape VB 40404 1458 22 from from IN 40404 1458 23 the the DT 40404 1458 24 basin basin NN 40404 1458 25 . . . 40404 1459 1 The the DT 40404 1459 2 lake lake NN 40404 1459 3 water water NN 40404 1459 4 becomes become VBZ 40404 1459 5 more more JJR 40404 1459 6 and and CC 40404 1459 7 more more RBR 40404 1459 8 heavily heavily RB 40404 1459 9 charged charge VBN 40404 1459 10 with with IN 40404 1459 11 such such JJ 40404 1459 12 substances substance NNS 40404 1459 13 as as IN 40404 1459 14 common common JJ 40404 1459 15 salt salt NN 40404 1459 16 and and CC 40404 1459 17 the the DT 40404 1459 18 sulphates sulphate NNS 40404 1459 19 and and CC 40404 1459 20 carbonates carbonate NNS 40404 1459 21 of of IN 40404 1459 22 lime lime NN 40404 1459 23 , , , 40404 1459 24 of of IN 40404 1459 25 soda soda NN 40404 1459 26 , , , 40404 1459 27 and and CC 40404 1459 28 of of IN 40404 1459 29 potash potash NN 40404 1459 30 , , , 40404 1459 31 and and CC 40404 1459 32 these these DT 40404 1459 33 are be VBP 40404 1459 34 thrown throw VBN 40404 1459 35 down down RP 40404 1459 36 from from IN 40404 1459 37 solution solution NN 40404 1459 38 one one CD 40404 1459 39 after after IN 40404 1459 40 another another DT 40404 1459 41 as as IN 40404 1459 42 the the DT 40404 1459 43 point point NN 40404 1459 44 of of IN 40404 1459 45 saturation saturation NN 40404 1459 46 for for IN 40404 1459 47 each each DT 40404 1459 48 mineral mineral NN 40404 1459 49 is be VBZ 40404 1459 50 reached reach VBN 40404 1459 51 . . . 40404 1460 1 Carbonate carbonate NN 40404 1460 2 of of IN 40404 1460 3 lime lime NN 40404 1460 4 , , , 40404 1460 5 the the DT 40404 1460 6 least least JJS 40404 1460 7 soluble soluble JJ 40404 1460 8 and and CC 40404 1460 9 often often RB 40404 1460 10 the the DT 40404 1460 11 most most RBS 40404 1460 12 abundant abundant JJ 40404 1460 13 mineral mineral NN 40404 1460 14 brought bring VBN 40404 1460 15 in in RP 40404 1460 16 , , , 40404 1460 17 is be VBZ 40404 1460 18 the the DT 40404 1460 19 first first JJ 40404 1460 20 to to TO 40404 1460 21 be be VB 40404 1460 22 precipitated precipitate VBN 40404 1460 23 . . . 40404 1461 1 As as IN 40404 1461 2 concentration concentration NN 40404 1461 3 goes go VBZ 40404 1461 4 on on RB 40404 1461 5 , , , 40404 1461 6 gypsum gypsum NNP 40404 1461 7 , , , 40404 1461 8 which which WDT 40404 1461 9 is be VBZ 40404 1461 10 insoluble insoluble JJ 40404 1461 11 in in IN 40404 1461 12 a a DT 40404 1461 13 strong strong JJ 40404 1461 14 brine brine NN 40404 1461 15 , , , 40404 1461 16 is be VBZ 40404 1461 17 deposited deposit VBN 40404 1461 18 , , , 40404 1461 19 and and CC 40404 1461 20 afterwards afterwards RB 40404 1461 21 common common JJ 40404 1461 22 salt salt NN 40404 1461 23 . . . 40404 1462 1 As as IN 40404 1462 2 the the DT 40404 1462 3 saltness saltness NN 40404 1462 4 of of IN 40404 1462 5 the the DT 40404 1462 6 lake lake NN 40404 1462 7 varies vary VBZ 40404 1462 8 with with IN 40404 1462 9 the the DT 40404 1462 10 seasons season NNS 40404 1462 11 and and CC 40404 1462 12 with with IN 40404 1462 13 climatic climatic JJ 40404 1462 14 changes change NNS 40404 1462 15 , , , 40404 1462 16 gypsum gypsum NN 40404 1462 17 and and CC 40404 1462 18 salt salt NN 40404 1462 19 are be VBP 40404 1462 20 laid lay VBN 40404 1462 21 in in IN 40404 1462 22 alternate alternate JJ 40404 1462 23 beds bed NNS 40404 1462 24 and and CC 40404 1462 25 are be VBP 40404 1462 26 interleaved interleave VBN 40404 1462 27 with with IN 40404 1462 28 sedimentary sedimentary JJ 40404 1462 29 clays clay NNS 40404 1462 30 spread spread VBP 40404 1462 31 from from IN 40404 1462 32 the the DT 40404 1462 33 waste waste NN 40404 1462 34 brought bring VBN 40404 1462 35 in in RP 40404 1462 36 by by IN 40404 1462 37 streams stream NNS 40404 1462 38 at at IN 40404 1462 39 times time NNS 40404 1462 40 of of IN 40404 1462 41 flood flood NN 40404 1462 42 . . . 40404 1463 1 Few few JJ 40404 1463 2 forms form NNS 40404 1463 3 of of IN 40404 1463 4 life life NN 40404 1463 5 can can MD 40404 1463 6 live live VB 40404 1463 7 in in IN 40404 1463 8 bodies body NNS 40404 1463 9 of of IN 40404 1463 10 salt salt NN 40404 1463 11 water water NN 40404 1463 12 so so RB 40404 1463 13 concentrated concentrate VBD 40404 1463 14 that that IN 40404 1463 15 chemical chemical NN 40404 1463 16 deposits deposit NNS 40404 1463 17 take take VBP 40404 1463 18 place place NN 40404 1463 19 , , , 40404 1463 20 and and CC 40404 1463 21 hence hence RB 40404 1463 22 the the DT 40404 1463 23 beds bed NNS 40404 1463 24 of of IN 40404 1463 25 salt salt NN 40404 1463 26 , , , 40404 1463 27 gypsum gypsum NN 40404 1463 28 , , , 40404 1463 29 and and CC 40404 1463 30 silt silt NN 40404 1463 31 of of IN 40404 1463 32 such such JJ 40404 1463 33 lakes lake NNS 40404 1463 34 are be VBP 40404 1463 35 quite quite RB 40404 1463 36 barren barren JJ 40404 1463 37 of of IN 40404 1463 38 the the DT 40404 1463 39 remains remain NNS 40404 1463 40 of of IN 40404 1463 41 life life NN 40404 1463 42 . . . 40404 1464 1 Similar similar JJ 40404 1464 2 deposits deposit NNS 40404 1464 3 are be VBP 40404 1464 4 precipitated precipitate VBN 40404 1464 5 by by IN 40404 1464 6 the the DT 40404 1464 7 concentration concentration NN 40404 1464 8 of of IN 40404 1464 9 sea sea NN 40404 1464 10 water water NN 40404 1464 11 in in IN 40404 1464 12 lagoons lagoon NNS 40404 1464 13 and and CC 40404 1464 14 arms arm NNS 40404 1464 15 of of IN 40404 1464 16 the the DT 40404 1464 17 sea sea NN 40404 1464 18 cut cut VBD 40404 1464 19 off off RP 40404 1464 20 from from IN 40404 1464 21 the the DT 40404 1464 22 ocean ocean NN 40404 1464 23 . . . 40404 1465 1 [ [ -LRB- 40404 1465 2 Illustration illustration NN 40404 1465 3 : : : 40404 1465 4 Fig Fig NNP 40404 1465 5 . . . 40404 1466 1 83 83 CD 40404 1466 2 . . . 40404 1467 1 Map Map NNP 40404 1467 2 of of IN 40404 1467 3 Lake Lake NNP 40404 1467 4 Bonneville Bonneville NNP 40404 1467 5 and and CC 40404 1467 6 Lahontan Lahontan NNP 40404 1467 7 From from IN 40404 1467 8 Davis Davis NNP 40404 1467 9 ' ' POS 40404 1467 10 _ _ NNP 40404 1467 11 Physical Physical NNP 40404 1467 12 Geography Geography NNP 40404 1467 13 _ _ NNP 40404 1467 14 ] ] -RRB- 40404 1467 15 = = NFP 40404 1467 16 Lakes Lakes NNP 40404 1467 17 Bonneville Bonneville NNP 40404 1467 18 and and CC 40404 1467 19 Lahontan.= Lahontan.= NNP 40404 1467 20 These these DT 40404 1467 21 names name NNS 40404 1467 22 are be VBP 40404 1467 23 given give VBN 40404 1467 24 to to IN 40404 1467 25 extinct extinct JJ 40404 1467 26 lakes lake NNS 40404 1467 27 which which WDT 40404 1467 28 once once RB 40404 1467 29 occupied occupy VBD 40404 1467 30 large large JJ 40404 1467 31 areas area NNS 40404 1467 32 in in IN 40404 1467 33 the the DT 40404 1467 34 Great Great NNP 40404 1467 35 Basin Basin NNP 40404 1467 36 , , , 40404 1467 37 the the DT 40404 1467 38 former former JJ 40404 1467 39 in in IN 40404 1467 40 Utah Utah NNP 40404 1467 41 , , , 40404 1467 42 the the DT 40404 1467 43 latter latter JJ 40404 1467 44 in in IN 40404 1467 45 northwestern northwestern JJ 40404 1467 46 Nevada Nevada NNP 40404 1467 47 . . . 40404 1468 1 Their -PRON- PRP$ 40404 1468 2 records record NNS 40404 1468 3 remain remain VBP 40404 1468 4 in in IN 40404 1468 5 old old JJ 40404 1468 6 horizontal horizontal JJ 40404 1468 7 beach beach NN 40404 1468 8 lines line NNS 40404 1468 9 which which WDT 40404 1468 10 they -PRON- PRP 40404 1468 11 drew draw VBD 40404 1468 12 along along IN 40404 1468 13 their -PRON- PRP$ 40404 1468 14 mountainous mountainous JJ 40404 1468 15 shores shore NNS 40404 1468 16 at at IN 40404 1468 17 the the DT 40404 1468 18 different different JJ 40404 1468 19 levels level NNS 40404 1468 20 at at IN 40404 1468 21 which which WDT 40404 1468 22 they -PRON- PRP 40404 1468 23 stood stand VBD 40404 1468 24 , , , 40404 1468 25 and and CC 40404 1468 26 in in IN 40404 1468 27 the the DT 40404 1468 28 deposits deposit NNS 40404 1468 29 of of IN 40404 1468 30 their -PRON- PRP$ 40404 1468 31 beds bed NNS 40404 1468 32 . . . 40404 1469 1 At at IN 40404 1469 2 its -PRON- PRP$ 40404 1469 3 highest high JJS 40404 1469 4 stage stage NN 40404 1469 5 Lake Lake NNP 40404 1469 6 Bonneville Bonneville NNP 40404 1469 7 , , , 40404 1469 8 then then RB 40404 1469 9 one one CD 40404 1469 10 thousand thousand CD 40404 1469 11 feet foot NNS 40404 1469 12 deep deep JJ 40404 1469 13 , , , 40404 1469 14 overflowed overflowed JJ 40404 1469 15 to to IN 40404 1469 16 the the DT 40404 1469 17 north north NN 40404 1469 18 and and CC 40404 1469 19 was be VBD 40404 1469 20 a a DT 40404 1469 21 fresh fresh JJ 40404 1469 22 - - HYPH 40404 1469 23 water water NN 40404 1469 24 lake lake NN 40404 1469 25 . . . 40404 1470 1 As as IN 40404 1470 2 it -PRON- PRP 40404 1470 3 shrank shrink VBD 40404 1470 4 below below IN 40404 1470 5 the the DT 40404 1470 6 outlet outlet NN 40404 1470 7 it -PRON- PRP 40404 1470 8 became become VBD 40404 1470 9 more more RBR 40404 1470 10 and and CC 40404 1470 11 more more RBR 40404 1470 12 salty salty JJ 40404 1470 13 , , , 40404 1470 14 and and CC 40404 1470 15 the the DT 40404 1470 16 Great Great NNP 40404 1470 17 Salt Salt NNP 40404 1470 18 Lake Lake NNP 40404 1470 19 , , , 40404 1470 20 its -PRON- PRP$ 40404 1470 21 withered withered JJ 40404 1470 22 residue residue NN 40404 1470 23 , , , 40404 1470 24 is be VBZ 40404 1470 25 now now RB 40404 1470 26 depositing deposit VBG 40404 1470 27 salt salt NN 40404 1470 28 along along IN 40404 1470 29 its -PRON- PRP$ 40404 1470 30 shores shore NNS 40404 1470 31 . . . 40404 1471 1 In in IN 40404 1471 2 its -PRON- PRP$ 40404 1471 3 strong strong JJ 40404 1471 4 brine brine NN 40404 1471 5 lime lime NN 40404 1471 6 carbonate carbonate NN 40404 1471 7 is be VBZ 40404 1471 8 insoluble insoluble JJ 40404 1471 9 , , , 40404 1471 10 and and CC 40404 1471 11 that that IN 40404 1471 12 brought bring VBD 40404 1471 13 in in RP 40404 1471 14 by by IN 40404 1471 15 streams stream NNS 40404 1471 16 is be VBZ 40404 1471 17 thrown throw VBN 40404 1471 18 down down RP 40404 1471 19 at at IN 40404 1471 20 once once RB 40404 1471 21 in in IN 40404 1471 22 the the DT 40404 1471 23 form form NN 40404 1471 24 of of IN 40404 1471 25 travertine travertine NN 40404 1471 26 . . . 40404 1472 1 [ [ -LRB- 40404 1472 2 Illustration illustration NN 40404 1472 3 : : : 40404 1472 4 Fig Fig NNP 40404 1472 5 . . . 40404 1473 1 84 84 CD 40404 1473 2 . . . 40404 1474 1 Section section NN 40404 1474 2 of of IN 40404 1474 3 Deposits deposit NNS 40404 1474 4 in in IN 40404 1474 5 Beds bed NNS 40404 1474 6 of of IN 40404 1474 7 Lakes Lakes NNP 40404 1474 8 Bonneville Bonneville NNP 40404 1474 9 and and CC 40404 1474 10 Lahontan Lahontan NNP 40404 1474 11 ] ] -RRB- 40404 1474 12 Lake Lake NNP 40404 1474 13 Lahontan Lahontan NNP 40404 1474 14 never never RB 40404 1474 15 had have VBD 40404 1474 16 an an DT 40404 1474 17 outlet outlet NN 40404 1474 18 . . . 40404 1475 1 The the DT 40404 1475 2 first first JJ 40404 1475 3 chemical chemical NN 40404 1475 4 deposits deposit NNS 40404 1475 5 to to TO 40404 1475 6 be be VB 40404 1475 7 made make VBN 40404 1475 8 along along IN 40404 1475 9 its -PRON- PRP$ 40404 1475 10 shores shore NNS 40404 1475 11 were be VBD 40404 1475 12 deposits deposit NNS 40404 1475 13 of of IN 40404 1475 14 travertine travertine NN 40404 1475 15 , , , 40404 1475 16 in in IN 40404 1475 17 places place NNS 40404 1475 18 eighty eighty CD 40404 1475 19 feet foot NNS 40404 1475 20 thick thick JJ 40404 1475 21 . . . 40404 1476 1 Its -PRON- PRP$ 40404 1476 2 floor floor NN 40404 1476 3 is be VBZ 40404 1476 4 spread spread VBN 40404 1476 5 with with IN 40404 1476 6 fine fine JJ 40404 1476 7 clays clay NNS 40404 1476 8 , , , 40404 1476 9 which which WDT 40404 1476 10 must must MD 40404 1476 11 have have VB 40404 1476 12 been be VBN 40404 1476 13 laid lay VBN 40404 1476 14 in in IN 40404 1476 15 deep deep JJ 40404 1476 16 , , , 40404 1476 17 still still RB 40404 1476 18 water water NN 40404 1476 19 , , , 40404 1476 20 and and CC 40404 1476 21 which which WDT 40404 1476 22 are be VBP 40404 1476 23 charged charge VBN 40404 1476 24 with with IN 40404 1476 25 the the DT 40404 1476 26 salts salt NNS 40404 1476 27 absorbed absorb VBN 40404 1476 28 by by IN 40404 1476 29 them -PRON- PRP 40404 1476 30 as as IN 40404 1476 31 the the DT 40404 1476 32 briny briny JJ 40404 1476 33 water water NN 40404 1476 34 of of IN 40404 1476 35 the the DT 40404 1476 36 lake lake NN 40404 1476 37 dried dry VBD 40404 1476 38 away away RB 40404 1476 39 . . . 40404 1477 1 These these DT 40404 1477 2 sedimentary sedimentary JJ 40404 1477 3 clays clay NNS 40404 1477 4 are be VBP 40404 1477 5 in in IN 40404 1477 6 two two CD 40404 1477 7 divisions division NNS 40404 1477 8 , , , 40404 1477 9 the the DT 40404 1477 10 upper upper JJ 40404 1477 11 and and CC 40404 1477 12 lower low JJR 40404 1477 13 , , , 40404 1477 14 each each DT 40404 1477 15 being be VBG 40404 1477 16 about about RB 40404 1477 17 one one CD 40404 1477 18 hundred hundred CD 40404 1477 19 feet foot NNS 40404 1477 20 thick thick JJ 40404 1477 21 ( ( -LRB- 40404 1477 22 _ _ NNP 40404 1477 23 a a DT 40404 1477 24 _ _ NNP 40404 1477 25 and and CC 40404 1477 26 _ _ NNP 40404 1477 27 c c NNP 40404 1477 28 _ _ NNP 40404 1477 29 , , , 40404 1477 30 Fig Fig NNP 40404 1477 31 . . . 40404 1478 1 84 84 CD 40404 1478 2 ) ) -RRB- 40404 1478 3 . . . 40404 1479 1 They -PRON- PRP 40404 1479 2 are be VBP 40404 1479 3 separated separate VBN 40404 1479 4 by by IN 40404 1479 5 heavy heavy JJ 40404 1479 6 deposits deposit NNS 40404 1479 7 of of IN 40404 1479 8 well well RB 40404 1479 9 - - HYPH 40404 1479 10 rounded rounded JJ 40404 1479 11 , , , 40404 1479 12 cross cross JJ 40404 1479 13 - - JJ 40404 1479 14 bedded bedded JJ 40404 1479 15 gravels gravel NNS 40404 1479 16 and and CC 40404 1479 17 sands sand NNS 40404 1479 18 ( ( -LRB- 40404 1479 19 _ _ NNP 40404 1479 20 b b NNP 40404 1479 21 _ _ NNP 40404 1479 22 , , , 40404 1479 23 Fig Fig NNP 40404 1479 24 . . . 40404 1480 1 84 84 CD 40404 1480 2 ) ) -RRB- 40404 1480 3 , , , 40404 1480 4 similar similar JJ 40404 1480 5 to to IN 40404 1480 6 those those DT 40404 1480 7 spread spread NN 40404 1480 8 at at IN 40404 1480 9 the the DT 40404 1480 10 present present JJ 40404 1480 11 time time NN 40404 1480 12 by by IN 40404 1480 13 the the DT 40404 1480 14 intermittent intermittent JJ 40404 1480 15 streams stream NNS 40404 1480 16 of of IN 40404 1480 17 arid arid JJ 40404 1480 18 regions region NNS 40404 1480 19 . . . 40404 1481 1 A a DT 40404 1481 2 similar similar JJ 40404 1481 3 record record NN 40404 1481 4 is be VBZ 40404 1481 5 shown show VBN 40404 1481 6 in in IN 40404 1481 7 the the DT 40404 1481 8 old old JJ 40404 1481 9 floors floor NNS 40404 1481 10 of of IN 40404 1481 11 Lake Lake NNP 40404 1481 12 Bonneville Bonneville NNP 40404 1481 13 . . . 40404 1482 1 What what WDT 40404 1482 2 conclusions conclusion NNS 40404 1482 3 do do VBP 40404 1482 4 you -PRON- PRP 40404 1482 5 draw draw VB 40404 1482 6 from from IN 40404 1482 7 these these DT 40404 1482 8 facts fact NNS 40404 1482 9 as as IN 40404 1482 10 to to IN 40404 1482 11 the the DT 40404 1482 12 history history NN 40404 1482 13 of of IN 40404 1482 14 these these DT 40404 1482 15 ancient ancient JJ 40404 1482 16 lakes lake NNS 40404 1482 17 ? ? . 40404 1483 1 Deltas Deltas NNP 40404 1483 2 In in IN 40404 1483 3 the the DT 40404 1483 4 river river NN 40404 1483 5 deposits deposit NNS 40404 1483 6 which which WDT 40404 1483 7 are be VBP 40404 1483 8 left leave VBN 40404 1483 9 above above IN 40404 1483 10 sea sea NN 40404 1483 11 level level NN 40404 1483 12 particles particle NNS 40404 1483 13 of of IN 40404 1483 14 waste waste NN 40404 1483 15 are be VBP 40404 1483 16 allowed allow VBN 40404 1483 17 to to TO 40404 1483 18 linger linger VB 40404 1483 19 only only RB 40404 1483 20 for for IN 40404 1483 21 a a DT 40404 1483 22 time time NN 40404 1483 23 . . . 40404 1484 1 From from IN 40404 1484 2 alluvial alluvial JJ 40404 1484 3 fans fan NNS 40404 1484 4 and and CC 40404 1484 5 flood flood NN 40404 1484 6 plains plain NNS 40404 1484 7 they -PRON- PRP 40404 1484 8 are be VBP 40404 1484 9 constantly constantly RB 40404 1484 10 being be VBG 40404 1484 11 taken take VBN 40404 1484 12 up up RP 40404 1484 13 and and CC 40404 1484 14 swept sweep VBD 40404 1484 15 farther farther RB 40404 1484 16 on on IN 40404 1484 17 downstream downstream NNP 40404 1484 18 . . . 40404 1485 1 Although although IN 40404 1485 2 these these DT 40404 1485 3 land land NN 40404 1485 4 forms form NNS 40404 1485 5 may may MD 40404 1485 6 long long RB 40404 1485 7 persist persist VB 40404 1485 8 , , , 40404 1485 9 the the DT 40404 1485 10 particles particle NNS 40404 1485 11 which which WDT 40404 1485 12 compose compose VBP 40404 1485 13 them -PRON- PRP 40404 1485 14 are be VBP 40404 1485 15 ever ever RB 40404 1485 16 changing change VBG 40404 1485 17 . . . 40404 1486 1 We -PRON- PRP 40404 1486 2 may may MD 40404 1486 3 therefore therefore RB 40404 1486 4 think think VB 40404 1486 5 of of IN 40404 1486 6 the the DT 40404 1486 7 alluvial alluvial JJ 40404 1486 8 deposits deposit NNS 40404 1486 9 of of IN 40404 1486 10 a a DT 40404 1486 11 valley valley NN 40404 1486 12 as as IN 40404 1486 13 a a DT 40404 1486 14 stream stream NN 40404 1486 15 of of IN 40404 1486 16 waste waste NN 40404 1486 17 fed feed VBN 40404 1486 18 by by IN 40404 1486 19 the the DT 40404 1486 20 waste waste NN 40404 1486 21 mantle mantle NN 40404 1486 22 as as IN 40404 1486 23 it -PRON- PRP 40404 1486 24 creeps creep VBZ 40404 1486 25 and and CC 40404 1486 26 washes wash VBZ 40404 1486 27 down down IN 40404 1486 28 the the DT 40404 1486 29 valley valley NN 40404 1486 30 sides side NNS 40404 1486 31 , , , 40404 1486 32 and and CC 40404 1486 33 slowly slowly RB 40404 1486 34 moving move VBG 40404 1486 35 onwards onwards RB 40404 1486 36 to to IN 40404 1486 37 the the DT 40404 1486 38 sea sea NN 40404 1486 39 . . . 40404 1487 1 In in IN 40404 1487 2 basins basin NNS 40404 1487 3 waste waste NN 40404 1487 4 finds find VBZ 40404 1487 5 a a DT 40404 1487 6 longer long JJR 40404 1487 7 rest rest NN 40404 1487 8 , , , 40404 1487 9 but but CC 40404 1487 10 sooner soon RBR 40404 1487 11 or or CC 40404 1487 12 later later JJ 40404 1487 13 lakes lake NNS 40404 1487 14 and and CC 40404 1487 15 dry dry JJ 40404 1487 16 basins basin NNS 40404 1487 17 are be VBP 40404 1487 18 drained drain VBN 40404 1487 19 or or CC 40404 1487 20 filled fill VBN 40404 1487 21 , , , 40404 1487 22 and and CC 40404 1487 23 their -PRON- PRP$ 40404 1487 24 deposits deposit NNS 40404 1487 25 , , , 40404 1487 26 if if IN 40404 1487 27 above above IN 40404 1487 28 sea sea NN 40404 1487 29 level level NN 40404 1487 30 , , , 40404 1487 31 resume resume VB 40404 1487 32 their -PRON- PRP$ 40404 1487 33 journey journey NN 40404 1487 34 to to IN 40404 1487 35 their -PRON- PRP$ 40404 1487 36 final final JJ 40404 1487 37 goal goal NN 40404 1487 38 . . . 40404 1488 1 It -PRON- PRP 40404 1488 2 is be VBZ 40404 1488 3 only only RB 40404 1488 4 when when WRB 40404 1488 5 carried carry VBN 40404 1488 6 below below IN 40404 1488 7 the the DT 40404 1488 8 level level NN 40404 1488 9 of of IN 40404 1488 10 the the DT 40404 1488 11 sea sea NN 40404 1488 12 that that WDT 40404 1488 13 they -PRON- PRP 40404 1488 14 are be VBP 40404 1488 15 indefinitely indefinitely RB 40404 1488 16 preserved preserve VBN 40404 1488 17 . . . 40404 1489 1 On on IN 40404 1489 2 reaching reach VBG 40404 1489 3 this this DT 40404 1489 4 terminus terminus NN 40404 1489 5 , , , 40404 1489 6 rivers river NNS 40404 1489 7 deliver deliver VBP 40404 1489 8 their -PRON- PRP$ 40404 1489 9 load load NN 40404 1489 10 to to IN 40404 1489 11 the the DT 40404 1489 12 ocean ocean NN 40404 1489 13 . . . 40404 1490 1 In in IN 40404 1490 2 some some DT 40404 1490 3 cases case NNS 40404 1490 4 the the DT 40404 1490 5 ocean ocean NN 40404 1490 6 is be VBZ 40404 1490 7 able able JJ 40404 1490 8 to to TO 40404 1490 9 take take VB 40404 1490 10 it -PRON- PRP 40404 1490 11 up up RP 40404 1490 12 by by IN 40404 1490 13 means mean NNS 40404 1490 14 of of IN 40404 1490 15 strong strong JJ 40404 1490 16 tidal tidal JJ 40404 1490 17 and and CC 40404 1490 18 other other JJ 40404 1490 19 currents current NNS 40404 1490 20 , , , 40404 1490 21 and and CC 40404 1490 22 to to TO 40404 1490 23 dispose dispose VB 40404 1490 24 of of IN 40404 1490 25 it -PRON- PRP 40404 1490 26 in in IN 40404 1490 27 ways way NNS 40404 1490 28 which which WDT 40404 1490 29 we -PRON- PRP 40404 1490 30 shall shall MD 40404 1490 31 study study VB 40404 1490 32 later later RB 40404 1490 33 . . . 40404 1491 1 But but CC 40404 1491 2 often often RB 40404 1491 3 the the DT 40404 1491 4 load load NN 40404 1491 5 is be VBZ 40404 1491 6 so so RB 40404 1491 7 large large JJ 40404 1491 8 , , , 40404 1491 9 or or CC 40404 1491 10 the the DT 40404 1491 11 tides tide NNS 40404 1491 12 are be VBP 40404 1491 13 so so RB 40404 1491 14 weak weak JJ 40404 1491 15 , , , 40404 1491 16 that that IN 40404 1491 17 much much JJ 40404 1491 18 of of IN 40404 1491 19 the the DT 40404 1491 20 waste waste NN 40404 1491 21 which which WDT 40404 1491 22 the the DT 40404 1491 23 river river NN 40404 1491 24 brings bring VBZ 40404 1491 25 in in IN 40404 1491 26 settles settle NNS 40404 1491 27 at at IN 40404 1491 28 its -PRON- PRP$ 40404 1491 29 mouth mouth NN 40404 1491 30 , , , 40404 1491 31 there there RB 40404 1491 32 building build VBG 40404 1491 33 up up RP 40404 1491 34 a a DT 40404 1491 35 deposit deposit NN 40404 1491 36 called call VBN 40404 1491 37 the the DT 40404 1491 38 _ _ NNP 40404 1491 39 delta delta NN 40404 1491 40 _ _ NNP 40404 1491 41 , , , 40404 1491 42 from from IN 40404 1491 43 the the DT 40404 1491 44 Greek greek JJ 40404 1491 45 letter letter NN 40404 1491 46 ( ( -LRB- 40404 1491 47 D d NN 40404 1491 48 ) ) -RRB- 40404 1491 49 of of IN 40404 1491 50 that that DT 40404 1491 51 name name NN 40404 1491 52 , , , 40404 1491 53 whose whose WP$ 40404 1491 54 shape shape NN 40404 1491 55 it -PRON- PRP 40404 1491 56 sometimes sometimes RB 40404 1491 57 resembles resemble VBZ 40404 1491 58 . . . 40404 1492 1 Deltas delta NNS 40404 1492 2 and and CC 40404 1492 3 alluvial alluvial JJ 40404 1492 4 fans fan NNS 40404 1492 5 have have VBP 40404 1492 6 many many JJ 40404 1492 7 common common JJ 40404 1492 8 characteristics characteristic NNS 40404 1492 9 . . . 40404 1493 1 Both both DT 40404 1493 2 owe owe VBP 40404 1493 3 their -PRON- PRP$ 40404 1493 4 origin origin NN 40404 1493 5 to to IN 40404 1493 6 a a DT 40404 1493 7 sudden sudden JJ 40404 1493 8 check check NN 40404 1493 9 in in IN 40404 1493 10 the the DT 40404 1493 11 velocity velocity NN 40404 1493 12 of of IN 40404 1493 13 the the DT 40404 1493 14 river river NN 40404 1493 15 , , , 40404 1493 16 compelling compel VBG 40404 1493 17 a a DT 40404 1493 18 deposit deposit NN 40404 1493 19 of of IN 40404 1493 20 the the DT 40404 1493 21 load load NN 40404 1493 22 ; ; : 40404 1493 23 both both DT 40404 1493 24 are be VBP 40404 1493 25 triangular triangular JJ 40404 1493 26 in in IN 40404 1493 27 outline outline NN 40404 1493 28 , , , 40404 1493 29 the the DT 40404 1493 30 apex apex NNP 40404 1493 31 pointing pointing NN 40404 1493 32 upstream upstream NNP 40404 1493 33 ; ; : 40404 1493 34 and and CC 40404 1493 35 both both DT 40404 1493 36 are be VBP 40404 1493 37 traversed traverse VBN 40404 1493 38 by by IN 40404 1493 39 distributaries distributary NNS 40404 1493 40 which which WDT 40404 1493 41 build build VBP 40404 1493 42 up up RP 40404 1493 43 all all DT 40404 1493 44 parts part NNS 40404 1493 45 in in IN 40404 1493 46 turn turn NN 40404 1493 47 . . . 40404 1494 1 In in IN 40404 1494 2 a a DT 40404 1494 3 delta delta NN 40404 1494 4 we -PRON- PRP 40404 1494 5 may may MD 40404 1494 6 distinguish distinguish VB 40404 1494 7 deposits deposit NNS 40404 1494 8 of of IN 40404 1494 9 two two CD 40404 1494 10 distinct distinct JJ 40404 1494 11 kinds,--the kinds,--the NNP 40404 1494 12 submarine submarine NN 40404 1494 13 and and CC 40404 1494 14 the the DT 40404 1494 15 subaërial subaërial NN 40404 1494 16 . . . 40404 1495 1 In in IN 40404 1495 2 part part NN 40404 1495 3 a a DT 40404 1495 4 delta delta NN 40404 1495 5 is be VBZ 40404 1495 6 built build VBN 40404 1495 7 of of IN 40404 1495 8 waste waste NN 40404 1495 9 brought bring VBN 40404 1495 10 down down RP 40404 1495 11 by by IN 40404 1495 12 the the DT 40404 1495 13 river river NN 40404 1495 14 and and CC 40404 1495 15 redistributed redistribute VBD 40404 1495 16 and and CC 40404 1495 17 spread spread VBN 40404 1495 18 by by IN 40404 1495 19 waves wave NNS 40404 1495 20 and and CC 40404 1495 21 tides tide NNS 40404 1495 22 over over IN 40404 1495 23 the the DT 40404 1495 24 sea sea NN 40404 1495 25 bottom bottom NN 40404 1495 26 adjacent adjacent JJ 40404 1495 27 to to IN 40404 1495 28 the the DT 40404 1495 29 river river NN 40404 1495 30 's 's POS 40404 1495 31 mouth mouth NN 40404 1495 32 . . . 40404 1496 1 The the DT 40404 1496 2 origin origin NN 40404 1496 3 of of IN 40404 1496 4 these these DT 40404 1496 5 deposits deposit NNS 40404 1496 6 is be VBZ 40404 1496 7 recorded record VBN 40404 1496 8 in in IN 40404 1496 9 the the DT 40404 1496 10 remains remain NNS 40404 1496 11 of of IN 40404 1496 12 marine marine JJ 40404 1496 13 animals animal NNS 40404 1496 14 and and CC 40404 1496 15 plants plant NNS 40404 1496 16 which which WDT 40404 1496 17 they -PRON- PRP 40404 1496 18 contain contain VBP 40404 1496 19 . . . 40404 1497 1 [ [ -LRB- 40404 1497 2 Illustration illustration NN 40404 1497 3 : : : 40404 1497 4 Fig Fig NNP 40404 1497 5 . . . 40404 1498 1 85 85 CD 40404 1498 2 . . . 40404 1499 1 Delta Delta NNP 40404 1499 2 of of IN 40404 1499 3 the the DT 40404 1499 4 Mississippi Mississippi NNP 40404 1499 5 River River NNP 40404 1499 6 ] ] -RRB- 40404 1499 7 As as IN 40404 1499 8 the the DT 40404 1499 9 submarine submarine NN 40404 1499 10 delta delta NN 40404 1499 11 grows grow VBZ 40404 1499 12 near near RB 40404 1499 13 to to IN 40404 1499 14 the the DT 40404 1499 15 level level NN 40404 1499 16 of of IN 40404 1499 17 the the DT 40404 1499 18 sea sea NN 40404 1499 19 the the DT 40404 1499 20 distributaries distributary NNS 40404 1499 21 of of IN 40404 1499 22 the the DT 40404 1499 23 river river NN 40404 1499 24 cover cover VBP 40404 1499 25 it -PRON- PRP 40404 1499 26 with with IN 40404 1499 27 subaërial subaërial JJ 40404 1499 28 deposits deposit NNS 40404 1499 29 altogether altogether RB 40404 1499 30 similar similar JJ 40404 1499 31 to to IN 40404 1499 32 those those DT 40404 1499 33 of of IN 40404 1499 34 the the DT 40404 1499 35 flood flood NN 40404 1499 36 plain plain NN 40404 1499 37 , , , 40404 1499 38 of of IN 40404 1499 39 which which WDT 40404 1499 40 indeed indeed RB 40404 1499 41 the the DT 40404 1499 42 subaërial subaërial JJ 40404 1499 43 delta delta NN 40404 1499 44 is be VBZ 40404 1499 45 the the DT 40404 1499 46 prolongation prolongation NN 40404 1499 47 . . . 40404 1500 1 Here here RB 40404 1500 2 extended extended JJ 40404 1500 3 deposits deposit NNS 40404 1500 4 of of IN 40404 1500 5 peat peat NN 40404 1500 6 may may MD 40404 1500 7 accumulate accumulate VB 40404 1500 8 in in IN 40404 1500 9 swamps swamp NNS 40404 1500 10 , , , 40404 1500 11 and and CC 40404 1500 12 the the DT 40404 1500 13 remains remain NNS 40404 1500 14 of of IN 40404 1500 15 land land NN 40404 1500 16 and and CC 40404 1500 17 fresh fresh JJ 40404 1500 18 - - HYPH 40404 1500 19 water water NN 40404 1500 20 animals animal NNS 40404 1500 21 and and CC 40404 1500 22 plants plant NNS 40404 1500 23 swept sweep VBN 40404 1500 24 down down RP 40404 1500 25 by by IN 40404 1500 26 the the DT 40404 1500 27 stream stream NN 40404 1500 28 are be VBP 40404 1500 29 imbedded imbed VBN 40404 1500 30 in in IN 40404 1500 31 the the DT 40404 1500 32 silts silt NNS 40404 1500 33 laid lay VBN 40404 1500 34 at at IN 40404 1500 35 times time NNS 40404 1500 36 of of IN 40404 1500 37 flood flood NN 40404 1500 38 . . . 40404 1501 1 Borings boring NNS 40404 1501 2 made make VBN 40404 1501 3 in in IN 40404 1501 4 the the DT 40404 1501 5 deltas delta NNS 40404 1501 6 of of IN 40404 1501 7 great great JJ 40404 1501 8 rivers river NNS 40404 1501 9 such such JJ 40404 1501 10 as as IN 40404 1501 11 the the DT 40404 1501 12 Mississippi Mississippi NNP 40404 1501 13 , , , 40404 1501 14 the the DT 40404 1501 15 Ganges Ganges NNPS 40404 1501 16 , , , 40404 1501 17 and and CC 40404 1501 18 the the DT 40404 1501 19 Nile Nile NNP 40404 1501 20 , , , 40404 1501 21 show show VBP 40404 1501 22 that that IN 40404 1501 23 the the DT 40404 1501 24 subaërial subaërial JJ 40404 1501 25 portion portion NN 40404 1501 26 often often RB 40404 1501 27 reaches reach VBZ 40404 1501 28 a a DT 40404 1501 29 surprising surprising JJ 40404 1501 30 thickness thickness NN 40404 1501 31 . . . 40404 1502 1 Layers layer NNS 40404 1502 2 of of IN 40404 1502 3 peat peat NN 40404 1502 4 , , , 40404 1502 5 old old JJ 40404 1502 6 soils soil NNS 40404 1502 7 , , , 40404 1502 8 and and CC 40404 1502 9 forest forest NN 40404 1502 10 grounds ground NNS 40404 1502 11 with with IN 40404 1502 12 the the DT 40404 1502 13 stumps stump NNS 40404 1502 14 of of IN 40404 1502 15 trees tree NNS 40404 1502 16 are be VBP 40404 1502 17 discovered discover VBN 40404 1502 18 hundreds hundred NNS 40404 1502 19 of of IN 40404 1502 20 feet foot NNS 40404 1502 21 below below IN 40404 1502 22 sea sea NN 40404 1502 23 level level NN 40404 1502 24 . . . 40404 1503 1 In in IN 40404 1503 2 the the DT 40404 1503 3 Nile Nile NNP 40404 1503 4 delta delta NN 40404 1503 5 some some DT 40404 1503 6 eight eight CD 40404 1503 7 layers layer NNS 40404 1503 8 of of IN 40404 1503 9 coarse coarse JJ 40404 1503 10 gravel gravel NN 40404 1503 11 were be VBD 40404 1503 12 found find VBN 40404 1503 13 interbedded interbedde VBN 40404 1503 14 with with IN 40404 1503 15 river river NN 40404 1503 16 silts silt NNS 40404 1503 17 , , , 40404 1503 18 and and CC 40404 1503 19 in in IN 40404 1503 20 the the DT 40404 1503 21 Ganges Ganges NNP 40404 1503 22 delta delta NN 40404 1503 23 at at IN 40404 1503 24 Calcutta Calcutta NNP 40404 1503 25 a a DT 40404 1503 26 boring bore VBG 40404 1503 27 nearly nearly RB 40404 1503 28 five five CD 40404 1503 29 hundred hundred CD 40404 1503 30 feet foot NNS 40404 1503 31 in in IN 40404 1503 32 depth depth NN 40404 1503 33 stopped stop VBD 40404 1503 34 in in IN 40404 1503 35 such such PDT 40404 1503 36 a a DT 40404 1503 37 layer layer NN 40404 1503 38 . . . 40404 1504 1 The the DT 40404 1504 2 Mississippi Mississippi NNP 40404 1504 3 has have VBZ 40404 1504 4 built build VBN 40404 1504 5 a a DT 40404 1504 6 delta delta NN 40404 1504 7 of of IN 40404 1504 8 twelve twelve CD 40404 1504 9 thousand thousand CD 40404 1504 10 three three CD 40404 1504 11 hundred hundred CD 40404 1504 12 square square JJ 40404 1504 13 miles mile NNS 40404 1504 14 , , , 40404 1504 15 and and CC 40404 1504 16 is be VBZ 40404 1504 17 pushing push VBG 40404 1504 18 the the DT 40404 1504 19 natural natural JJ 40404 1504 20 embankments embankment NNS 40404 1504 21 of of IN 40404 1504 22 its -PRON- PRP$ 40404 1504 23 chief chief JJ 40404 1504 24 distributaries distributary NNS 40404 1504 25 into into IN 40404 1504 26 the the DT 40404 1504 27 Gulf Gulf NNP 40404 1504 28 at at IN 40404 1504 29 a a DT 40404 1504 30 maximum maximum JJ 40404 1504 31 rate rate NN 40404 1504 32 of of IN 40404 1504 33 a a DT 40404 1504 34 mile mile NN 40404 1504 35 in in IN 40404 1504 36 sixteen sixteen CD 40404 1504 37 years year NNS 40404 1504 38 . . . 40404 1505 1 Muddy muddy JJ 40404 1505 2 shoals shoal NNS 40404 1505 3 surround surround VBP 40404 1505 4 its -PRON- PRP$ 40404 1505 5 front front JJ 40404 1505 6 , , , 40404 1505 7 shallow shallow JJ 40404 1505 8 lakes lake NNS 40404 1505 9 , , , 40404 1505 10 e.g. e.g. RB 40404 1506 1 lakes lakes NNP 40404 1506 2 Pontchartrain Pontchartrain NNP 40404 1506 3 and and CC 40404 1506 4 Borgne Borgne NNP 40404 1506 5 , , , 40404 1506 6 are be VBP 40404 1506 7 formed form VBN 40404 1506 8 between between IN 40404 1506 9 the the DT 40404 1506 10 growing grow VBG 40404 1506 11 delta delta NN 40404 1506 12 and and CC 40404 1506 13 the the DT 40404 1506 14 old old JJ 40404 1506 15 shore shore NN 40404 1506 16 line line NN 40404 1506 17 , , , 40404 1506 18 and and CC 40404 1506 19 elongate elongate VB 40404 1506 20 lakes lake NNS 40404 1506 21 and and CC 40404 1506 22 swamps swamp NNS 40404 1506 23 are be VBP 40404 1506 24 inclosed inclose VBN 40404 1506 25 between between IN 40404 1506 26 the the DT 40404 1506 27 natural natural JJ 40404 1506 28 embankments embankment NNS 40404 1506 29 of of IN 40404 1506 30 the the DT 40404 1506 31 distributaries distributary NNS 40404 1506 32 . . . 40404 1507 1 The the DT 40404 1507 2 delta delta NN 40404 1507 3 of of IN 40404 1507 4 the the DT 40404 1507 5 Indus Indus NNP 40404 1507 6 River River NNP 40404 1507 7 , , , 40404 1507 8 India India NNP 40404 1507 9 , , , 40404 1507 10 lies lie VBZ 40404 1507 11 so so RB 40404 1507 12 low low RB 40404 1507 13 along along IN 40404 1507 14 shore shore NN 40404 1507 15 that that WDT 40404 1507 16 a a DT 40404 1507 17 broad broad JJ 40404 1507 18 tract tract NN 40404 1507 19 of of IN 40404 1507 20 country country NN 40404 1507 21 is be VBZ 40404 1507 22 overflowed overflow VBN 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VBP 40404 1524 10 enormous enormous JJ 40404 1524 11 thickness thickness NN 40404 1524 12 , , , 40404 1524 13 and and CC 40404 1524 14 , , , 40404 1524 15 being be VBG 40404 1524 16 lowered lower VBN 40404 1524 17 beneath beneath IN 40404 1524 18 the the DT 40404 1524 19 level level NN 40404 1524 20 of of IN 40404 1524 21 the the DT 40404 1524 22 sea sea NN 40404 1524 23 , , , 40404 1524 24 are be VBP 40404 1524 25 safely safely RB 40404 1524 26 preserved preserve VBN 40404 1524 27 from from IN 40404 1524 28 erosion erosion NN 40404 1524 29 until until IN 40404 1524 30 a a DT 40404 1524 31 movement movement NN 40404 1524 32 of of IN 40404 1524 33 the the DT 40404 1524 34 earth earth NN 40404 1524 35 's 's POS 40404 1524 36 crust crust NN 40404 1524 37 in in IN 40404 1524 38 the the DT 40404 1524 39 opposite opposite JJ 40404 1524 40 direction direction NN 40404 1524 41 lifts lift VBZ 40404 1524 42 them -PRON- PRP 40404 1524 43 to to TO 40404 1524 44 form form VB 40404 1524 45 part part NN 40404 1524 46 of of IN 40404 1524 47 the the DT 40404 1524 48 land land NN 40404 1524 49 . . . 40404 1525 1 We -PRON- PRP 40404 1525 2 shall shall MD 40404 1525 3 read read VB 40404 1525 4 later later RB 40404 1525 5 in in IN 40404 1525 6 the the DT 40404 1525 7 hard hard JJ 40404 1525 8 rocks rock NNS 40404 1525 9 of of IN 40404 1525 10 our -PRON- PRP$ 40404 1525 11 continent continent NN 40404 1525 12 the the DT 40404 1525 13 records record NNS 40404 1525 14 of of IN 40404 1525 15 such such JJ 40404 1525 16 ancient ancient JJ 40404 1525 17 deltas delta NNS 40404 1525 18 , , , 40404 1525 19 and and CC 40404 1525 20 we -PRON- PRP 40404 1525 21 shall shall MD 40404 1525 22 not not RB 40404 1525 23 be be VB 40404 1525 24 surprised surprised JJ 40404 1525 25 to to TO 40404 1525 26 find find VB 40404 1525 27 them -PRON- PRP 40404 1525 28 as as RB 40404 1525 29 thick thick JJ 40404 1525 30 as as IN 40404 1525 31 are be VBP 40404 1525 32 those those DT 40404 1525 33 now now RB 40404 1525 34 building build VBG 40404 1525 35 at at IN 40404 1525 36 the the DT 40404 1525 37 mouths mouth NNS 40404 1525 38 of of IN 40404 1525 39 great great JJ 40404 1525 40 rivers river NNS 40404 1525 41 . . . 40404 1526 1 = = NFP 40404 1526 2 Lake lake NN 40404 1526 3 deltas.= deltas.= NNP 40404 1526 4 Deltas Deltas NNP 40404 1526 5 are be VBP 40404 1526 6 also also RB 40404 1526 7 formed form VBN 40404 1526 8 where where WRB 40404 1526 9 streams stream NNS 40404 1526 10 lose lose VBP 40404 1526 11 their -PRON- PRP$ 40404 1526 12 velocity velocity NN 40404 1526 13 on on IN 40404 1526 14 entering enter VBG 40404 1526 15 the the DT 40404 1526 16 still still RB 40404 1526 17 waters water NNS 40404 1526 18 of of IN 40404 1526 19 lakes lake NNS 40404 1526 20 . . . 40404 1527 1 The the DT 40404 1527 2 shore shore NN 40404 1527 3 lines line NNS 40404 1527 4 of of IN 40404 1527 5 extinct extinct JJ 40404 1527 6 lakes lake NNS 40404 1527 7 , , , 40404 1527 8 such such JJ 40404 1527 9 as as IN 40404 1527 10 Lake Lake NNP 40404 1527 11 Agassiz Agassiz NNP 40404 1527 12 and and CC 40404 1527 13 Lakes Lakes NNP 40404 1527 14 Bonneville Bonneville NNP 40404 1527 15 and and CC 40404 1527 16 Lahontan Lahontan NNP 40404 1527 17 , , , 40404 1527 18 may may MD 40404 1527 19 be be VB 40404 1527 20 traced trace VBN 40404 1527 21 by by IN 40404 1527 22 the the DT 40404 1527 23 heavy heavy JJ 40404 1527 24 deposits deposit NNS 40404 1527 25 at at IN 40404 1527 26 the the DT 40404 1527 27 mouths mouth NNS 40404 1527 28 of of IN 40404 1527 29 their -PRON- PRP$ 40404 1527 30 tributary tributary JJ 40404 1527 31 streams stream NNS 40404 1527 32 . . . 40404 1528 1 * * NFP 40404 1528 2 * * NFP 40404 1528 3 * * NFP 40404 1528 4 * * NFP 40404 1528 5 * * NFP 40404 1528 6 We -PRON- PRP 40404 1528 7 have have VBP 40404 1528 8 seen see VBN 40404 1528 9 that that IN 40404 1528 10 the the DT 40404 1528 11 work work NN 40404 1528 12 of of IN 40404 1528 13 streams stream NNS 40404 1528 14 is be VBZ 40404 1528 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40404 1529 34 - - HYPH 40404 1529 35 day day NN 40404 1529 36 -- -- : 40404 1529 37 and and CC 40404 1529 38 carried carry VBN 40404 1529 39 by by IN 40404 1529 40 their -PRON- PRP$ 40404 1529 41 rivers river NNS 40404 1529 42 to to IN 40404 1529 43 the the DT 40404 1529 44 ocean ocean NN 40404 1529 45 . . . 40404 1530 1 In in IN 40404 1530 2 all all DT 40404 1530 3 geological geological JJ 40404 1530 4 times time NNS 40404 1530 5 , , , 40404 1530 6 as as IN 40404 1530 7 at at IN 40404 1530 8 the the DT 40404 1530 9 present present NN 40404 1530 10 , , , 40404 1530 11 the the DT 40404 1530 12 work work NN 40404 1530 13 of of IN 40404 1530 14 streams stream NNS 40404 1530 15 has have VBZ 40404 1530 16 been be VBN 40404 1530 17 to to TO 40404 1530 18 destroy destroy VB 40404 1530 19 the the DT 40404 1530 20 lands land NNS 40404 1530 21 , , , 40404 1530 22 and and CC 40404 1530 23 in in IN 40404 1530 24 so so RB 40404 1530 25 doing do VBG 40404 1530 26 to to TO 40404 1530 27 furnish furnish VB 40404 1530 28 to to IN 40404 1530 29 the the DT 40404 1530 30 ocean ocean NN 40404 1530 31 the the DT 40404 1530 32 materials material NNS 40404 1530 33 from from IN 40404 1530 34 which which WDT 40404 1530 35 the the DT 40404 1530 36 lands land NNS 40404 1530 37 of of IN 40404 1530 38 future future JJ 40404 1530 39 ages age NNS 40404 1530 40 were be VBD 40404 1530 41 to to TO 40404 1530 42 be be VB 40404 1530 43 made make VBN 40404 1530 44 . . . 40404 1531 1 Before before IN 40404 1531 2 we -PRON- PRP 40404 1531 3 consider consider VBP 40404 1531 4 how how WRB 40404 1531 5 the the DT 40404 1531 6 waste waste NN 40404 1531 7 of of IN 40404 1531 8 the the DT 40404 1531 9 land land NN 40404 1531 10 brought bring VBN 40404 1531 11 in in RP 40404 1531 12 by by IN 40404 1531 13 streams stream NNS 40404 1531 14 is be VBZ 40404 1531 15 rebuilt rebuild VBN 40404 1531 16 upon upon IN 40404 1531 17 the the DT 40404 1531 18 ocean ocean NN 40404 1531 19 floor floor NN 40404 1531 20 , , , 40404 1531 21 we -PRON- PRP 40404 1531 22 must must MD 40404 1531 23 proceed proceed VB 40404 1531 24 to to TO 40404 1531 25 study study VB 40404 1531 26 the the DT 40404 1531 27 work work NN 40404 1531 28 of of IN 40404 1531 29 two two CD 40404 1531 30 agents agent NNS 40404 1531 31 , , , 40404 1531 32 glacier glacier NN 40404 1531 33 ice ice NN 40404 1531 34 and and CC 40404 1531 35 the the DT 40404 1531 36 wind wind NN 40404 1531 37 , , , 40404 1531 38 which which WDT 40404 1531 39 coöperate coöperate JJ 40404 1531 40 with with IN 40404 1531 41 rivers river NNS 40404 1531 42 in in IN 40404 1531 43 the the DT 40404 1531 44 denudation denudation NN 40404 1531 45 of of IN 40404 1531 46 the the DT 40404 1531 47 land land NN 40404 1531 48 . . . 40404 1532 1 [ [ -LRB- 40404 1532 2 Illustration illustration NN 40404 1532 3 : : : 40404 1532 4 Fig Fig NNP 40404 1532 5 . . . 40404 1533 1 87 87 CD 40404 1533 2 . . . 40404 1534 1 Section section NN 40404 1534 2 of of IN 40404 1534 3 Undifferentiated Undifferentiated NNP 40404 1534 4 Drift Drift NNP 40404 1534 5 near near IN 40404 1534 6 Chicago Chicago NNP 40404 1534 7 ] ] -RRB- 40404 1534 8 CHAPTER chapter NN 40404 1534 9 V V NNP 40404 1534 10 THE the DT 40404 1534 11 WORK work NN 40404 1534 12 OF of IN 40404 1534 13 GLACIERS glacier NNS 40404 1534 14 = = NFP 40404 1534 15 The the DT 40404 1534 16 drift.= drift.= NNS 40404 1534 17 The the DT 40404 1534 18 surface surface NN 40404 1534 19 of of IN 40404 1534 20 northeastern northeastern JJ 40404 1534 21 North North NNP 40404 1534 22 America America NNP 40404 1534 23 , , , 40404 1534 24 as as IN 40404 1534 25 far far RB 40404 1534 26 south south RB 40404 1534 27 as as IN 40404 1534 28 the the DT 40404 1534 29 Ohio Ohio NNP 40404 1534 30 and and CC 40404 1534 31 Missouri Missouri NNP 40404 1534 32 rivers river NNS 40404 1534 33 , , , 40404 1534 34 is be VBZ 40404 1534 35 generally generally RB 40404 1534 36 covered cover VBN 40404 1534 37 by by IN 40404 1534 38 the the DT 40404 1534 39 drift,--a drift,--a NNP 40404 1534 40 formation formation NN 40404 1534 41 which which WDT 40404 1534 42 is be VBZ 40404 1534 43 quite quite RB 40404 1534 44 unlike unlike IN 40404 1534 45 any any DT 40404 1534 46 which which WDT 40404 1534 47 we -PRON- PRP 40404 1534 48 have have VBP 40404 1534 49 so so RB 40404 1534 50 far far RB 40404 1534 51 studied study VBN 40404 1534 52 . . . 40404 1535 1 A a DT 40404 1535 2 section section NN 40404 1535 3 of of IN 40404 1535 4 it -PRON- PRP 40404 1535 5 , , , 40404 1535 6 such such JJ 40404 1535 7 as as IN 40404 1535 8 that that DT 40404 1535 9 illustrated illustrate VBN 40404 1535 10 in in IN 40404 1535 11 Figure Figure NNP 40404 1535 12 87 87 CD 40404 1535 13 , , , 40404 1535 14 shows show VBZ 40404 1535 15 that that IN 40404 1535 16 for for IN 40404 1535 17 the the DT 40404 1535 18 most most JJS 40404 1535 19 part part NN 40404 1535 20 it -PRON- PRP 40404 1535 21 is be VBZ 40404 1535 22 unstratified unstratified JJ 40404 1535 23 , , , 40404 1535 24 consisting consist VBG 40404 1535 25 of of IN 40404 1535 26 clay clay NN 40404 1535 27 , , , 40404 1535 28 sand sand NN 40404 1535 29 , , , 40404 1535 30 pebbles pebble NNS 40404 1535 31 , , , 40404 1535 32 and and CC 40404 1535 33 even even RB 40404 1535 34 large large JJ 40404 1535 35 bowlders bowlder NNS 40404 1535 36 , , , 40404 1535 37 all all DT 40404 1535 38 mingled mingle VBN 40404 1535 39 pell pell NN 40404 1535 40 - - HYPH 40404 1535 41 mell mell NNP 40404 1535 42 together together RB 40404 1535 43 . . . 40404 1536 1 The the DT 40404 1536 2 agent agent NN 40404 1536 3 which which WDT 40404 1536 4 laid lay VBD 40404 1536 5 the the DT 40404 1536 6 drift drift NN 40404 1536 7 is be VBZ 40404 1536 8 one one CD 40404 1536 9 which which WDT 40404 1536 10 can can MD 40404 1536 11 carry carry VB 40404 1536 12 a a DT 40404 1536 13 load load NN 40404 1536 14 of of IN 40404 1536 15 material material NN 40404 1536 16 of of IN 40404 1536 17 all all DT 40404 1536 18 sizes size NNS 40404 1536 19 , , , 40404 1536 20 from from IN 40404 1536 21 the the DT 40404 1536 22 largest large JJS 40404 1536 23 bowlder bowlder NN 40404 1536 24 to to IN 40404 1536 25 the the DT 40404 1536 26 finest fine JJS 40404 1536 27 clay clay NN 40404 1536 28 , , , 40404 1536 29 and and CC 40404 1536 30 deposit deposit VB 40404 1536 31 it -PRON- PRP 40404 1536 32 without without IN 40404 1536 33 sorting sort VBG 40404 1536 34 . . . 40404 1537 1 [ [ -LRB- 40404 1537 2 Illustration illustration NN 40404 1537 3 : : : 40404 1537 4 Fig Fig NNP 40404 1537 5 . . . 40404 1538 1 88 88 CD 40404 1538 2 . . . 40404 1539 1 Characteristic characteristic JJ 40404 1539 2 Pebbles pebble NNS 40404 1539 3 from from IN 40404 1539 4 the the DT 40404 1539 5 Drift Drift NNP 40404 1539 6 No no NN 40404 1539 7 . . . 40404 1540 1 1 1 CD 40404 1540 2 has have VBZ 40404 1540 3 six six CD 40404 1540 4 facets facet NNS 40404 1540 5 ; ; : 40404 1540 6 No no UH 40404 1540 7 . . . 40404 1541 1 4 4 LS 40404 1541 2 , , , 40404 1541 3 originally originally RB 40404 1541 4 a a DT 40404 1541 5 rounded rounded JJ 40404 1541 6 river river NN 40404 1541 7 pebble pebble NN 40404 1541 8 , , , 40404 1541 9 has have VBZ 40404 1541 10 been be VBN 40404 1541 11 nibbled nibble VBN 40404 1541 12 down down RB 40404 1541 13 to to IN 40404 1541 14 one one CD 40404 1541 15 flat flat JJ 40404 1541 16 face face NN 40404 1541 17 ; ; : 40404 1541 18 Nos Nos NNP 40404 1541 19 . . . 40404 1542 1 3 3 CD 40404 1542 2 and and CC 40404 1542 3 5 5 CD 40404 1542 4 are be VBP 40404 1542 5 battered batter VBN 40404 1542 6 subangular subangular JJ 40404 1542 7 fragments fragment NNS 40404 1542 8 on on IN 40404 1542 9 one one CD 40404 1542 10 side side NN 40404 1542 11 only only RB 40404 1542 12 ] ] -RRB- 40404 1542 13 The the DT 40404 1542 14 stones stone NNS 40404 1542 15 of of IN 40404 1542 16 the the DT 40404 1542 17 drift drift NN 40404 1542 18 are be VBP 40404 1542 19 of of IN 40404 1542 20 many many JJ 40404 1542 21 kinds kind NNS 40404 1542 22 . . . 40404 1543 1 The the DT 40404 1543 2 region region NN 40404 1543 3 from from IN 40404 1543 4 which which WDT 40404 1543 5 it -PRON- PRP 40404 1543 6 was be VBD 40404 1543 7 gathered gather VBN 40404 1543 8 may may MD 40404 1543 9 well well RB 40404 1543 10 have have VB 40404 1543 11 been be VBN 40404 1543 12 large large JJ 40404 1543 13 in in IN 40404 1543 14 order order NN 40404 1543 15 to to TO 40404 1543 16 supply supply VB 40404 1543 17 these these DT 40404 1543 18 many many JJ 40404 1543 19 different different JJ 40404 1543 20 varieties variety NNS 40404 1543 21 of of IN 40404 1543 22 rocks rock NNS 40404 1543 23 . . . 40404 1544 1 Pebbles pebble NNS 40404 1544 2 and and CC 40404 1544 3 bowlders bowlder NNS 40404 1544 4 have have VBP 40404 1544 5 been be VBN 40404 1544 6 left leave VBN 40404 1544 7 far far RB 40404 1544 8 from from IN 40404 1544 9 their -PRON- PRP$ 40404 1544 10 original original JJ 40404 1544 11 homes home NNS 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40404 1545 14 over over IN 40404 1545 15 a a DT 40404 1545 16 large large JJ 40404 1545 17 area area NN 40404 1545 18 and and CC 40404 1545 19 carry carry VB 40404 1545 20 it -PRON- PRP 40404 1545 21 a a DT 40404 1545 22 long long JJ 40404 1545 23 way way NN 40404 1545 24 . . . 40404 1546 1 [ [ -LRB- 40404 1546 2 Illustration illustration NN 40404 1546 3 : : : 40404 1546 4 Fig Fig NNP 40404 1546 5 . . . 40404 1547 1 89 89 CD 40404 1547 2 . . . 40404 1548 1 Smoothed smooth VBN 40404 1548 2 and and CC 40404 1548 3 Scored Scored NNP 40404 1548 4 Rock Rock NNP 40404 1548 5 Surface Surface NNP 40404 1548 6 exposed expose VBN 40404 1548 7 to to IN 40404 1548 8 View View NNP 40404 1548 9 by by IN 40404 1548 10 the the DT 40404 1548 11 Removal Removal NNP 40404 1548 12 of of IN 40404 1548 13 Overlying Overlying NNP 40404 1548 14 Drift Drift NNP 40404 1548 15 , , , 40404 1548 16 Iowa Iowa NNP 40404 1548 17 ] ] -RRB- 40404 1548 18 The the DT 40404 1548 19 pebbles pebble NNS 40404 1548 20 of of IN 40404 1548 21 the the DT 40404 1548 22 drift drift NN 40404 1548 23 are be VBP 40404 1548 24 unlike unlike IN 40404 1548 25 those those DT 40404 1548 26 rounded round VBN 40404 1548 27 by by IN 40404 1548 28 running run VBG 40404 1548 29 water water NN 40404 1548 30 or or CC 40404 1548 31 by by IN 40404 1548 32 waves wave NNS 40404 1548 33 . . . 40404 1549 1 They -PRON- PRP 40404 1549 2 are be VBP 40404 1549 3 marked mark VBN 40404 1549 4 with with IN 40404 1549 5 scratches scratch NNS 40404 1549 6 . . . 40404 1550 1 Some some DT 40404 1550 2 are be VBP 40404 1550 3 angular angular JJ 40404 1550 4 , , , 40404 1550 5 many many JJ 40404 1550 6 have have VBP 40404 1550 7 had have VBN 40404 1550 8 their -PRON- PRP$ 40404 1550 9 edges edge NNS 40404 1550 10 blunted blunt VBN 40404 1550 11 , , , 40404 1550 12 while while IN 40404 1550 13 others other NNS 40404 1550 14 have have VBP 40404 1550 15 been be VBN 40404 1550 16 ground grind VBN 40404 1550 17 flat flat JJ 40404 1550 18 and and CC 40404 1550 19 smooth smooth VB 40404 1550 20 on on IN 40404 1550 21 one one CD 40404 1550 22 or or CC 40404 1550 23 more more JJR 40404 1550 24 sides side NNS 40404 1550 25 , , , 40404 1550 26 like like IN 40404 1550 27 gems gem NNS 40404 1550 28 which which WDT 40404 1550 29 have have VBP 40404 1550 30 been be VBN 40404 1550 31 faceted facete VBN 40404 1550 32 by by IN 40404 1550 33 being be VBG 40404 1550 34 held hold VBN 40404 1550 35 firmly firmly RB 40404 1550 36 against against IN 40404 1550 37 the the DT 40404 1550 38 lapidary lapidary NN 40404 1550 39 's 's POS 40404 1550 40 wheel wheel NN 40404 1550 41 ( ( -LRB- 40404 1550 42 Fig fig NN 40404 1550 43 . . . 40404 1551 1 88 88 CD 40404 1551 2 ) ) -RRB- 40404 1551 3 . . . 40404 1552 1 In in IN 40404 1552 2 many many JJ 40404 1552 3 places place NNS 40404 1552 4 the the DT 40404 1552 5 upper upper JJ 40404 1552 6 surface surface NN 40404 1552 7 of of IN 40404 1552 8 the the DT 40404 1552 9 country country NN 40404 1552 10 rock rock NN 40404 1552 11 beneath beneath IN 40404 1552 12 the the DT 40404 1552 13 drift drift NN 40404 1552 14 has have VBZ 40404 1552 15 been be VBN 40404 1552 16 swept sweep VBN 40404 1552 17 clean clean JJ 40404 1552 18 of of IN 40404 1552 19 residual residual JJ 40404 1552 20 clays clay NNS 40404 1552 21 and and CC 40404 1552 22 other other JJ 40404 1552 23 waste waste NN 40404 1552 24 . . . 40404 1553 1 All all DT 40404 1553 2 rock rock NN 40404 1553 3 rotten rotten JJ 40404 1553 4 has have VBZ 40404 1553 5 been be VBN 40404 1553 6 planed plane VBN 40404 1553 7 away away RB 40404 1553 8 , , , 40404 1553 9 and and CC 40404 1553 10 the the DT 40404 1553 11 ledges ledge NNS 40404 1553 12 of of IN 40404 1553 13 sound sound JJ 40404 1553 14 rock rock NN 40404 1553 15 to to TO 40404 1553 16 which which WDT 40404 1553 17 the the DT 40404 1553 18 surface surface NN 40404 1553 19 has have VBZ 40404 1553 20 been be VBN 40404 1553 21 cut cut VBN 40404 1553 22 down down RP 40404 1553 23 have have VBP 40404 1553 24 been be VBN 40404 1553 25 rubbed rub VBN 40404 1553 26 smooth smooth JJ 40404 1553 27 and and CC 40404 1553 28 scratched scratch VBD 40404 1553 29 with with IN 40404 1553 30 long long JJ 40404 1553 31 , , , 40404 1553 32 straight straight JJ 40404 1553 33 , , , 40404 1553 34 parallel parallel JJ 40404 1553 35 lines line NNS 40404 1553 36 ( ( -LRB- 40404 1553 37 Fig fig NN 40404 1553 38 . . . 40404 1554 1 89 89 CD 40404 1554 2 ) ) -RRB- 40404 1554 3 . . . 40404 1555 1 The the DT 40404 1555 2 agent agent NN 40404 1555 3 which which WDT 40404 1555 4 laid lay VBD 40404 1555 5 the the DT 40404 1555 6 drift drift NN 40404 1555 7 can can MD 40404 1555 8 hold hold VB 40404 1555 9 sand sand NN 40404 1555 10 and and CC 40404 1555 11 pebbles pebble NNS 40404 1555 12 firmly firmly RB 40404 1555 13 in in IN 40404 1555 14 its -PRON- PRP$ 40404 1555 15 grasp grasp NN 40404 1555 16 and and CC 40404 1555 17 can can MD 40404 1555 18 grind grind VB 40404 1555 19 them -PRON- PRP 40404 1555 20 against against IN 40404 1555 21 the the DT 40404 1555 22 rock rock NN 40404 1555 23 beneath beneath RB 40404 1555 24 , , , 40404 1555 25 thus thus RB 40404 1555 26 planing plane VBG 40404 1555 27 it -PRON- PRP 40404 1555 28 down down RP 40404 1555 29 and and CC 40404 1555 30 scoring score VBG 40404 1555 31 it -PRON- PRP 40404 1555 32 , , , 40404 1555 33 while while IN 40404 1555 34 faceting facete VBG 40404 1555 35 the the DT 40404 1555 36 pebbles pebble NNS 40404 1555 37 also also RB 40404 1555 38 . . . 40404 1556 1 Neither neither DT 40404 1556 2 water water NN 40404 1556 3 nor nor CC 40404 1556 4 wind wind NN 40404 1556 5 can can MD 40404 1556 6 do do VB 40404 1556 7 these these DT 40404 1556 8 things thing NNS 40404 1556 9 . . . 40404 1557 1 Indeed indeed RB 40404 1557 2 , , , 40404 1557 3 nothing nothing NN 40404 1557 4 like like IN 40404 1557 5 the the DT 40404 1557 6 drift drift NN 40404 1557 7 is be VBZ 40404 1557 8 being be VBG 40404 1557 9 formed form VBN 40404 1557 10 by by IN 40404 1557 11 any any DT 40404 1557 12 process process NN 40404 1557 13 now now RB 40404 1557 14 at at IN 40404 1557 15 work work NN 40404 1557 16 anywhere anywhere RB 40404 1557 17 in in IN 40404 1557 18 the the DT 40404 1557 19 eastern eastern JJ 40404 1557 20 United United NNP 40404 1557 21 States States NNP 40404 1557 22 . . . 40404 1558 1 To to TO 40404 1558 2 find find VB 40404 1558 3 the the DT 40404 1558 4 agent agent NN 40404 1558 5 which which WDT 40404 1558 6 has have VBZ 40404 1558 7 laid lay VBN 40404 1558 8 this this DT 40404 1558 9 extensive extensive JJ 40404 1558 10 formation formation NN 40404 1558 11 we -PRON- PRP 40404 1558 12 must must MD 40404 1558 13 go go VB 40404 1558 14 to to IN 40404 1558 15 a a DT 40404 1558 16 region region NN 40404 1558 17 of of IN 40404 1558 18 different different JJ 40404 1558 19 climatic climatic JJ 40404 1558 20 conditions condition NNS 40404 1558 21 . . . 40404 1559 1 [ [ -LRB- 40404 1559 2 Illustration illustration NN 40404 1559 3 : : : 40404 1559 4 Fig Fig NNP 40404 1559 5 . . . 40404 1560 1 90 90 CD 40404 1560 2 . . . 40404 1561 1 Map Map NNP 40404 1561 2 of of IN 40404 1561 3 Greenland Greenland NNP 40404 1561 4 Glacier Glacier NNP 40404 1561 5 ice ice NN 40404 1561 6 covers cover VBZ 40404 1561 7 all all DT 40404 1561 8 but but IN 40404 1561 9 the the DT 40404 1561 10 areas area NNS 40404 1561 11 shaded shade VBN 40404 1561 12 ] ] -RRB- 40404 1561 13 = = NFP 40404 1561 14 The the DT 40404 1561 15 inland inland JJ 40404 1561 16 ice ice NN 40404 1561 17 of of IN 40404 1561 18 Greenland.= Greenland.= NNP 40404 1561 19 Greenland Greenland NNP 40404 1561 20 is be VBZ 40404 1561 21 about about RB 40404 1561 22 fifteen fifteen CD 40404 1561 23 hundred hundred CD 40404 1561 24 miles mile NNS 40404 1561 25 long long JJ 40404 1561 26 and and CC 40404 1561 27 nearly nearly RB 40404 1561 28 seven seven CD 40404 1561 29 hundred hundred CD 40404 1561 30 miles mile NNS 40404 1561 31 in in IN 40404 1561 32 greatest great JJS 40404 1561 33 width width NN 40404 1561 34 . . . 40404 1562 1 With with IN 40404 1562 2 the the DT 40404 1562 3 exception exception NN 40404 1562 4 of of IN 40404 1562 5 a a DT 40404 1562 6 narrow narrow JJ 40404 1562 7 fringe fringe NN 40404 1562 8 of of IN 40404 1562 9 mountainous mountainous JJ 40404 1562 10 coast coast NN 40404 1562 11 land land NN 40404 1562 12 , , , 40404 1562 13 it -PRON- PRP 40404 1562 14 is be VBZ 40404 1562 15 completely completely RB 40404 1562 16 buried bury VBN 40404 1562 17 beneath beneath IN 40404 1562 18 a a DT 40404 1562 19 sheet sheet NN 40404 1562 20 of of IN 40404 1562 21 ice ice NN 40404 1562 22 , , , 40404 1562 23 in in IN 40404 1562 24 shape shape NN 40404 1562 25 like like IN 40404 1562 26 a a DT 40404 1562 27 vast vast JJ 40404 1562 28 white white JJ 40404 1562 29 shield shield NN 40404 1562 30 , , , 40404 1562 31 whose whose WP$ 40404 1562 32 convex convex NNP 40404 1562 33 surface surface NN 40404 1562 34 rises rise VBZ 40404 1562 35 to to IN 40404 1562 36 a a DT 40404 1562 37 height height NN 40404 1562 38 of of IN 40404 1562 39 nine nine CD 40404 1562 40 thousand thousand CD 40404 1562 41 feet foot NNS 40404 1562 42 above above IN 40404 1562 43 the the DT 40404 1562 44 sea sea NN 40404 1562 45 . . . 40404 1563 1 The the DT 40404 1563 2 few few JJ 40404 1563 3 explorers explorer NNS 40404 1563 4 who who WP 40404 1563 5 have have VBP 40404 1563 6 crossed cross VBN 40404 1563 7 the the DT 40404 1563 8 ice ice NN 40404 1563 9 cap cap NN 40404 1563 10 found find VBD 40404 1563 11 it -PRON- PRP 40404 1563 12 a a DT 40404 1563 13 trackless trackless NN 40404 1563 14 desert desert NN 40404 1563 15 destitute destitute NN 40404 1563 16 of of IN 40404 1563 17 all all DT 40404 1563 18 life life NN 40404 1563 19 save save VB 40404 1563 20 such such JJ 40404 1563 21 lowly lowly JJ 40404 1563 22 forms form NNS 40404 1563 23 as as IN 40404 1563 24 the the DT 40404 1563 25 microscopic microscopic JJ 40404 1563 26 plant plant NN 40404 1563 27 which which WDT 40404 1563 28 produces produce VBZ 40404 1563 29 the the DT 40404 1563 30 so so RB 40404 1563 31 - - HYPH 40404 1563 32 called call VBN 40404 1563 33 " " `` 40404 1563 34 red red JJ 40404 1563 35 snow snow NN 40404 1563 36 . . . 40404 1563 37 " " '' 40404 1564 1 On on IN 40404 1564 2 the the DT 40404 1564 3 smooth smooth JJ 40404 1564 4 plain plain NN 40404 1564 5 of of IN 40404 1564 6 the the DT 40404 1564 7 interior interior JJ 40404 1564 8 no no DT 40404 1564 9 rock rock NN 40404 1564 10 waste waste NN 40404 1564 11 relieves relieve VBZ 40404 1564 12 the the DT 40404 1564 13 snow snow NN 40404 1564 14 's 's POS 40404 1564 15 dazzling dazzle VBG 40404 1564 16 whiteness whiteness NN 40404 1564 17 ; ; : 40404 1564 18 no no DT 40404 1564 19 streams stream NNS 40404 1564 20 of of IN 40404 1564 21 running running NN 40404 1564 22 water water NN 40404 1564 23 are be VBP 40404 1564 24 seen see VBN 40404 1564 25 ; ; : 40404 1564 26 the the DT 40404 1564 27 silence silence NN 40404 1564 28 is be VBZ 40404 1564 29 broken break VBN 40404 1564 30 only only RB 40404 1564 31 by by IN 40404 1564 32 howling howl VBG 40404 1564 33 storm storm NN 40404 1564 34 winds wind NNS 40404 1564 35 and and CC 40404 1564 36 the the DT 40404 1564 37 rustle rustle NN 40404 1564 38 of of IN 40404 1564 39 the the DT 40404 1564 40 surface surface NN 40404 1564 41 snow snow NN 40404 1564 42 which which WDT 40404 1564 43 they -PRON- PRP 40404 1564 44 drive drive VBP 40404 1564 45 before before IN 40404 1564 46 them -PRON- PRP 40404 1564 47 . . . 40404 1565 1 Sounding sound VBG 40404 1565 2 with with IN 40404 1565 3 long long JJ 40404 1565 4 poles pole NNS 40404 1565 5 , , , 40404 1565 6 explorers explorer NNS 40404 1565 7 find find VBP 40404 1565 8 that that IN 40404 1565 9 below below IN 40404 1565 10 the the DT 40404 1565 11 powdery powdery NN 40404 1565 12 snow snow NN 40404 1565 13 of of IN 40404 1565 14 the the DT 40404 1565 15 latest late JJS 40404 1565 16 snowfall snowfall NN 40404 1565 17 lie lie NN 40404 1565 18 successive successive JJ 40404 1565 19 layers layer NNS 40404 1565 20 of of IN 40404 1565 21 earlier early JJR 40404 1565 22 snows snow NNS 40404 1565 23 , , , 40404 1565 24 which which WDT 40404 1565 25 grow grow VBP 40404 1565 26 more more JJR 40404 1565 27 and and CC 40404 1565 28 more more RBR 40404 1565 29 compact compact JJ 40404 1565 30 downward downward RB 40404 1565 31 , , , 40404 1565 32 and and CC 40404 1565 33 at at IN 40404 1565 34 last last JJ 40404 1565 35 have have VBP 40404 1565 36 altered alter VBN 40404 1565 37 to to IN 40404 1565 38 impenetrable impenetrable JJ 40404 1565 39 ice ice NN 40404 1565 40 . . . 40404 1566 1 The the DT 40404 1566 2 ice ice NN 40404 1566 3 cap cap NN 40404 1566 4 formed form VBN 40404 1566 5 by by IN 40404 1566 6 the the DT 40404 1566 7 accumulated accumulate VBN 40404 1566 8 snows snow NNS 40404 1566 9 of of IN 40404 1566 10 uncounted uncounted JJ 40404 1566 11 centuries century NNS 40404 1566 12 may may MD 40404 1566 13 well well RB 40404 1566 14 be be VB 40404 1566 15 more more JJR 40404 1566 16 than than IN 40404 1566 17 a a DT 40404 1566 18 mile mile NN 40404 1566 19 in in IN 40404 1566 20 depth depth NN 40404 1566 21 . . . 40404 1567 1 Ice ice NN 40404 1567 2 thus thus RB 40404 1567 3 formed form VBN 40404 1567 4 by by IN 40404 1567 5 the the DT 40404 1567 6 compacting compacting NN 40404 1567 7 of of IN 40404 1567 8 snow snow NN 40404 1567 9 is be VBZ 40404 1567 10 distinguished distinguish VBN 40404 1567 11 when when WRB 40404 1567 12 in in IN 40404 1567 13 motion motion NN 40404 1567 14 as as IN 40404 1567 15 _ _ NNP 40404 1567 16 glacier glacier NNP 40404 1567 17 ice ice NN 40404 1567 18 _ _ NNP 40404 1567 19 . . . 40404 1568 1 [ [ -LRB- 40404 1568 2 Illustration illustration NN 40404 1568 3 : : : 40404 1568 4 Fig Fig NNP 40404 1568 5 . . . 40404 1569 1 91 91 CD 40404 1569 2 . . . 40404 1570 1 Hypothetical Hypothetical NNP 40404 1570 2 Cross Cross NNP 40404 1570 3 Section Section NNP 40404 1570 4 of of IN 40404 1570 5 Greenland Greenland NNP 40404 1570 6 ] ] -RRB- 40404 1570 7 The the DT 40404 1570 8 inland inland JJ 40404 1570 9 ice ice NN 40404 1570 10 of of IN 40404 1570 11 Greenland Greenland NNP 40404 1570 12 moves move NNS 40404 1570 13 . . . 40404 1571 1 It -PRON- PRP 40404 1571 2 flows flow VBZ 40404 1571 3 with with IN 40404 1571 4 imperceptible imperceptible JJ 40404 1571 5 slowness slowness NN 40404 1571 6 under under IN 40404 1571 7 its -PRON- PRP$ 40404 1571 8 own own JJ 40404 1571 9 weight weight NN 40404 1571 10 , , , 40404 1571 11 like like UH 40404 1571 12 , , , 40404 1571 13 a a DT 40404 1571 14 mass mass NN 40404 1571 15 of of IN 40404 1571 16 some some DT 40404 1571 17 viscous viscous JJ 40404 1571 18 or or CC 40404 1571 19 plastic plastic NN 40404 1571 20 substance substance NN 40404 1571 21 , , , 40404 1571 22 such such JJ 40404 1571 23 as as IN 40404 1571 24 pitch pitch NN 40404 1571 25 or or CC 40404 1571 26 molasses molasse NNS 40404 1571 27 candy candy NN 40404 1571 28 , , , 40404 1571 29 in in IN 40404 1571 30 all all DT 40404 1571 31 directions direction NNS 40404 1571 32 outward outward RB 40404 1571 33 toward toward IN 40404 1571 34 the the DT 40404 1571 35 sea sea NN 40404 1571 36 . . . 40404 1572 1 Near near IN 40404 1572 2 the the DT 40404 1572 3 edge edge NN 40404 1572 4 it -PRON- PRP 40404 1572 5 has have VBZ 40404 1572 6 so so RB 40404 1572 7 thinned thin VBN 40404 1572 8 that that IN 40404 1572 9 mountain mountain NN 40404 1572 10 peaks peak NNS 40404 1572 11 are be VBP 40404 1572 12 laid lay VBN 40404 1572 13 bare bare JJ 40404 1572 14 , , , 40404 1572 15 these these DT 40404 1572 16 islands island NNS 40404 1572 17 in in IN 40404 1572 18 the the DT 40404 1572 19 sea sea NN 40404 1572 20 of of IN 40404 1572 21 ice ice NN 40404 1572 22 being be VBG 40404 1572 23 known know VBN 40404 1572 24 as as IN 40404 1572 25 _ _ NNP 40404 1572 26 nunataks nunatak NNS 40404 1572 27 _ _ NNP 40404 1572 28 . . . 40404 1573 1 Down down IN 40404 1573 2 the the DT 40404 1573 3 valleys valley NNS 40404 1573 4 of of IN 40404 1573 5 the the DT 40404 1573 6 coastal coastal JJ 40404 1573 7 belt belt NN 40404 1573 8 it -PRON- PRP 40404 1573 9 drains drain VBZ 40404 1573 10 in in IN 40404 1573 11 separate separate JJ 40404 1573 12 streams stream NNS 40404 1573 13 of of IN 40404 1573 14 ice ice NN 40404 1573 15 , , , 40404 1573 16 or or CC 40404 1573 17 _ _ NNP 40404 1573 18 glaciers glacier NNS 40404 1573 19 _ _ NNP 40404 1573 20 . . . 40404 1574 1 The the DT 40404 1574 2 largest large JJS 40404 1574 3 of of IN 40404 1574 4 these these DT 40404 1574 5 reach reach VBP 40404 1574 6 the the DT 40404 1574 7 sea sea NN 40404 1574 8 at at IN 40404 1574 9 the the DT 40404 1574 10 head head NN 40404 1574 11 of of IN 40404 1574 12 inlets inlet NNS 40404 1574 13 , , , 40404 1574 14 and and CC 40404 1574 15 are be VBP 40404 1574 16 therefore therefore RB 40404 1574 17 called call VBN 40404 1574 18 _ _ NNP 40404 1574 19 tide tide NNP 40404 1574 20 glaciers glacier NNS 40404 1574 21 _ _ NNP 40404 1574 22 . . . 40404 1575 1 Their -PRON- PRP$ 40404 1575 2 fronts front NNS 40404 1575 3 stand stand VBP 40404 1575 4 so so RB 40404 1575 5 deep deep RB 40404 1575 6 in in IN 40404 1575 7 sea sea NN 40404 1575 8 water water NN 40404 1575 9 that that WDT 40404 1575 10 there there EX 40404 1575 11 is be VBZ 40404 1575 12 visible visible JJ 40404 1575 13 seldom seldom RB 40404 1575 14 more more JJR 40404 1575 15 than than IN 40404 1575 16 three three CD 40404 1575 17 hundred hundred CD 40404 1575 18 feet foot NNS 40404 1575 19 of of IN 40404 1575 20 the the DT 40404 1575 21 wall wall NN 40404 1575 22 of of IN 40404 1575 23 ice ice NN 40404 1575 24 , , , 40404 1575 25 which which WDT 40404 1575 26 in in IN 40404 1575 27 many many JJ 40404 1575 28 glaciers glacier NNS 40404 1575 29 must must MD 40404 1575 30 be be VB 40404 1575 31 two two CD 40404 1575 32 thousand thousand CD 40404 1575 33 and and CC 40404 1575 34 more more JJR 40404 1575 35 feet foot NNS 40404 1575 36 high high JJ 40404 1575 37 . . . 40404 1576 1 From from IN 40404 1576 2 the the DT 40404 1576 3 sea sea NN 40404 1576 4 walls wall NNS 40404 1576 5 of of IN 40404 1576 6 tide tide NN 40404 1576 7 glaciers glacier NNS 40404 1576 8 great great JJ 40404 1576 9 fragments fragment NNS 40404 1576 10 break break VBP 40404 1576 11 off off RP 40404 1576 12 and and CC 40404 1576 13 float float VB 40404 1576 14 away away RB 40404 1576 15 as as IN 40404 1576 16 icebergs iceberg NNS 40404 1576 17 . . . 40404 1577 1 Thus thus RB 40404 1577 2 snows snow VBZ 40404 1577 3 which which WDT 40404 1577 4 fell fall VBD 40404 1577 5 in in IN 40404 1577 6 the the DT 40404 1577 7 interior interior NN 40404 1577 8 of of IN 40404 1577 9 this this DT 40404 1577 10 northern northern JJ 40404 1577 11 land land NN 40404 1577 12 , , , 40404 1577 13 perhaps perhaps RB 40404 1577 14 many many JJ 40404 1577 15 thousands thousand NNS 40404 1577 16 of of IN 40404 1577 17 years year NNS 40404 1577 18 ago ago RB 40404 1577 19 , , , 40404 1577 20 are be VBP 40404 1577 21 carried carry VBN 40404 1577 22 in in IN 40404 1577 23 the the DT 40404 1577 24 form form NN 40404 1577 25 of of IN 40404 1577 26 icebergs iceberg NNS 40404 1577 27 to to TO 40404 1577 28 melt melt VB 40404 1577 29 at at IN 40404 1577 30 last last RB 40404 1577 31 in in IN 40404 1577 32 the the DT 40404 1577 33 North North NNP 40404 1577 34 Atlantic Atlantic NNP 40404 1577 35 . . . 40404 1578 1 Greenland Greenland NNP 40404 1578 2 , , , 40404 1578 3 then then RB 40404 1578 4 , , , 40404 1578 5 is be VBZ 40404 1578 6 being be VBG 40404 1578 7 modeled model VBN 40404 1578 8 over over IN 40404 1578 9 the the DT 40404 1578 10 vast vast JJ 40404 1578 11 extent extent NN 40404 1578 12 of of IN 40404 1578 13 its -PRON- PRP$ 40404 1578 14 interior interior NN 40404 1578 15 not not RB 40404 1578 16 by by IN 40404 1578 17 streams stream NNS 40404 1578 18 of of IN 40404 1578 19 running running NN 40404 1578 20 water water NN 40404 1578 21 , , , 40404 1578 22 as as IN 40404 1578 23 are be VBP 40404 1578 24 regions region NNS 40404 1578 25 in in IN 40404 1578 26 warm warm JJ 40404 1578 27 and and CC 40404 1578 28 humid humid JJ 40404 1578 29 climates climate NNS 40404 1578 30 , , , 40404 1578 31 nor nor CC 40404 1578 32 by by IN 40404 1578 33 currents current NNS 40404 1578 34 of of IN 40404 1578 35 air air NN 40404 1578 36 , , , 40404 1578 37 as as IN 40404 1578 38 are be VBP 40404 1578 39 deserts desert NNS 40404 1578 40 to to IN 40404 1578 41 a a DT 40404 1578 42 large large JJ 40404 1578 43 extent extent NN 40404 1578 44 , , , 40404 1578 45 but but CC 40404 1578 46 by by IN 40404 1578 47 a a DT 40404 1578 48 sheet sheet NN 40404 1578 49 of of IN 40404 1578 50 flowing flow VBG 40404 1578 51 ice ice NN 40404 1578 52 . . . 40404 1579 1 What what WP 40404 1579 2 the the DT 40404 1579 3 ice ice NN 40404 1579 4 sheet sheet NN 40404 1579 5 is be VBZ 40404 1579 6 doing do VBG 40404 1579 7 in in IN 40404 1579 8 the the DT 40404 1579 9 interior interior NN 40404 1579 10 we -PRON- PRP 40404 1579 11 may may MD 40404 1579 12 infer infer VB 40404 1579 13 from from IN 40404 1579 14 a a DT 40404 1579 15 study study NN 40404 1579 16 of of IN 40404 1579 17 the the DT 40404 1579 18 separate separate JJ 40404 1579 19 glaciers glacier NNS 40404 1579 20 into into IN 40404 1579 21 which which WDT 40404 1579 22 it -PRON- PRP 40404 1579 23 breaks break VBZ 40404 1579 24 at at IN 40404 1579 25 its -PRON- PRP$ 40404 1579 26 edge edge NN 40404 1579 27 . . . 40404 1580 1 = = NFP 40404 1580 2 The the DT 40404 1580 3 smaller small JJR 40404 1580 4 Greenland Greenland NNP 40404 1580 5 glaciers.= glaciers.= CD 40404 1580 6 Many many JJ 40404 1580 7 of of IN 40404 1580 8 the the DT 40404 1580 9 smaller small JJR 40404 1580 10 glaciers glacier NNS 40404 1580 11 of of IN 40404 1580 12 Greenland Greenland NNP 40404 1580 13 do do VBP 40404 1580 14 not not RB 40404 1580 15 reach reach VB 40404 1580 16 the the DT 40404 1580 17 sea sea NN 40404 1580 18 , , , 40404 1580 19 but but CC 40404 1580 20 deploy deploy VB 40404 1580 21 on on IN 40404 1580 22 plains plain NNS 40404 1580 23 of of IN 40404 1580 24 sand sand NN 40404 1580 25 and and CC 40404 1580 26 gravel gravel NN 40404 1580 27 . . . 40404 1581 1 The the DT 40404 1581 2 edges edge NNS 40404 1581 3 of of IN 40404 1581 4 these these DT 40404 1581 5 ice ice NN 40404 1581 6 tongues tongue NNS 40404 1581 7 are be VBP 40404 1581 8 often often RB 40404 1581 9 as as RB 40404 1581 10 abrupt abrupt JJ 40404 1581 11 as as IN 40404 1581 12 if if IN 40404 1581 13 sliced slice VBN 40404 1581 14 away away RB 40404 1581 15 with with IN 40404 1581 16 a a DT 40404 1581 17 knife knife NN 40404 1581 18 ( ( -LRB- 40404 1581 19 Fig fig NN 40404 1581 20 . . . 40404 1582 1 92 92 CD 40404 1582 2 ) ) -RRB- 40404 1582 3 , , , 40404 1582 4 and and CC 40404 1582 5 their -PRON- PRP$ 40404 1582 6 structure structure NN 40404 1582 7 is be VBZ 40404 1582 8 thus thus RB 40404 1582 9 readily readily RB 40404 1582 10 seen see VBN 40404 1582 11 . . . 40404 1583 1 They -PRON- PRP 40404 1583 2 are be VBP 40404 1583 3 stratified stratify VBN 40404 1583 4 , , , 40404 1583 5 their -PRON- PRP$ 40404 1583 6 layers layer NNS 40404 1583 7 representing represent VBG 40404 1583 8 in in IN 40404 1583 9 part part NN 40404 1583 10 the the DT 40404 1583 11 successive successive JJ 40404 1583 12 snowfalls snowfall NNS 40404 1583 13 of of IN 40404 1583 14 the the DT 40404 1583 15 interior interior NN 40404 1583 16 of of IN 40404 1583 17 the the DT 40404 1583 18 country country NN 40404 1583 19 . . . 40404 1584 1 The the DT 40404 1584 2 upper upper JJ 40404 1584 3 layers layer NNS 40404 1584 4 are be VBP 40404 1584 5 commonly commonly RB 40404 1584 6 white white JJ 40404 1584 7 and and CC 40404 1584 8 free free JJ 40404 1584 9 from from IN 40404 1584 10 stones stone NNS 40404 1584 11 ; ; : 40404 1584 12 but but CC 40404 1584 13 the the DT 40404 1584 14 lower low JJR 40404 1584 15 layers layer NNS 40404 1584 16 , , , 40404 1584 17 to to IN 40404 1584 18 the the DT 40404 1584 19 height height NN 40404 1584 20 of of IN 40404 1584 21 a a DT 40404 1584 22 hundred hundred CD 40404 1584 23 feet foot NNS 40404 1584 24 or or CC 40404 1584 25 more more JJR 40404 1584 26 , , , 40404 1584 27 are be VBP 40404 1584 28 dark dark JJ 40404 1584 29 with with IN 40404 1584 30 debris debris NN 40404 1584 31 which which WDT 40404 1584 32 is be VBZ 40404 1584 33 being be VBG 40404 1584 34 slowly slowly RB 40404 1584 35 carried carry VBN 40404 1584 36 on on RP 40404 1584 37 . . . 40404 1585 1 So so RB 40404 1585 2 thickly thickly RB 40404 1585 3 studded stud VBN 40404 1585 4 with with IN 40404 1585 5 stones stone NNS 40404 1585 6 is be VBZ 40404 1585 7 the the DT 40404 1585 8 base base NN 40404 1585 9 of of IN 40404 1585 10 the the DT 40404 1585 11 ice ice NN 40404 1585 12 that that WDT 40404 1585 13 it -PRON- PRP 40404 1585 14 is be VBZ 40404 1585 15 sometimes sometimes RB 40404 1585 16 difficult difficult JJ 40404 1585 17 to to TO 40404 1585 18 distinguish distinguish VB 40404 1585 19 it -PRON- PRP 40404 1585 20 from from IN 40404 1585 21 the the DT 40404 1585 22 rock rock NN 40404 1585 23 waste waste NN 40404 1585 24 which which WDT 40404 1585 25 has have VBZ 40404 1585 26 been be VBN 40404 1585 27 slowly slowly RB 40404 1585 28 dragged drag VBN 40404 1585 29 beneath beneath IN 40404 1585 30 the the DT 40404 1585 31 glacier glacier NN 40404 1585 32 or or CC 40404 1585 33 left leave VBD 40404 1585 34 about about IN 40404 1585 35 its -PRON- PRP$ 40404 1585 36 edges edge NNS 40404 1585 37 . . . 40404 1586 1 The the DT 40404 1586 2 waste waste NN 40404 1586 3 beneath beneath RB 40404 1586 4 and and CC 40404 1586 5 about about IN 40404 1586 6 the the DT 40404 1586 7 glacier glacier NN 40404 1586 8 is be VBZ 40404 1586 9 unsorted unsorted JJ 40404 1586 10 . . . 40404 1587 1 The the DT 40404 1587 2 stones stone NNS 40404 1587 3 are be VBP 40404 1587 4 of of IN 40404 1587 5 many many JJ 40404 1587 6 kinds kind NNS 40404 1587 7 , , , 40404 1587 8 and and CC 40404 1587 9 numbers number NNS 40404 1587 10 of of IN 40404 1587 11 them -PRON- PRP 40404 1587 12 have have VBP 40404 1587 13 been be VBN 40404 1587 14 ground grind VBN 40404 1587 15 to to IN 40404 1587 16 flat flat JJ 40404 1587 17 faces face NNS 40404 1587 18 . . . 40404 1588 1 Where where WRB 40404 1588 2 the the DT 40404 1588 3 front front NN 40404 1588 4 of of IN 40404 1588 5 the the DT 40404 1588 6 ice ice NN 40404 1588 7 has have VBZ 40404 1588 8 retreated retreat VBN 40404 1588 9 the the DT 40404 1588 10 rock rock NN 40404 1588 11 surface surface NN 40404 1588 12 is be VBZ 40404 1588 13 seen see VBN 40404 1588 14 to to TO 40404 1588 15 be be VB 40404 1588 16 planed plane VBN 40404 1588 17 and and CC 40404 1588 18 scored score VBN 40404 1588 19 in in IN 40404 1588 20 places place NNS 40404 1588 21 by by IN 40404 1588 22 the the DT 40404 1588 23 stones stone NNS 40404 1588 24 frozen freeze VBN 40404 1588 25 fast fast RB 40404 1588 26 in in IN 40404 1588 27 the the DT 40404 1588 28 sole sole NN 40404 1588 29 of of IN 40404 1588 30 the the DT 40404 1588 31 glacier glacier NN 40404 1588 32 . . . 40404 1589 1 [ [ -LRB- 40404 1589 2 Illustration illustration NN 40404 1589 3 : : : 40404 1589 4 Fig Fig NNP 40404 1589 5 . . . 40404 1590 1 92 92 CD 40404 1590 2 . . . 40404 1591 1 A a DT 40404 1591 2 Greenland Greenland NNP 40404 1591 3 Glacier Glacier NNP 40404 1591 4 ] ] -RRB- 40404 1591 5 We -PRON- PRP 40404 1591 6 have have VBP 40404 1591 7 now now RB 40404 1591 8 found find VBN 40404 1591 9 in in IN 40404 1591 10 glacier glacier NNP 40404 1591 11 ice ice NN 40404 1591 12 an an DT 40404 1591 13 agent agent NN 40404 1591 14 able able JJ 40404 1591 15 to to TO 40404 1591 16 produce produce VB 40404 1591 17 the the DT 40404 1591 18 drift drift NN 40404 1591 19 of of IN 40404 1591 20 North North NNP 40404 1591 21 America America NNP 40404 1591 22 . . . 40404 1592 1 The the DT 40404 1592 2 ice ice NN 40404 1592 3 sheet sheet NN 40404 1592 4 of of IN 40404 1592 5 Greenland Greenland NNP 40404 1592 6 is be VBZ 40404 1592 7 now now RB 40404 1592 8 doing do VBG 40404 1592 9 what what WP 40404 1592 10 we -PRON- PRP 40404 1592 11 have have VBP 40404 1592 12 seen see VBN 40404 1592 13 was be VBD 40404 1592 14 done do VBN 40404 1592 15 in in IN 40404 1592 16 the the DT 40404 1592 17 recent recent JJ 40404 1592 18 past past NN 40404 1592 19 in in IN 40404 1592 20 our -PRON- PRP$ 40404 1592 21 own own JJ 40404 1592 22 land land NN 40404 1592 23 . . . 40404 1593 1 It -PRON- PRP 40404 1593 2 is be VBZ 40404 1593 3 carrying carry VBG 40404 1593 4 for for IN 40404 1593 5 long long JJ 40404 1593 6 distances distance NNS 40404 1593 7 rocks rock NNS 40404 1593 8 of of IN 40404 1593 9 many many JJ 40404 1593 10 kinds kind NNS 40404 1593 11 gathered gather VBD 40404 1593 12 , , , 40404 1593 13 we -PRON- PRP 40404 1593 14 may may MD 40404 1593 15 infer infer VB 40404 1593 16 , , , 40404 1593 17 over over IN 40404 1593 18 a a DT 40404 1593 19 large large JJ 40404 1593 20 extent extent NN 40404 1593 21 of of IN 40404 1593 22 country country NN 40404 1593 23 . . . 40404 1594 1 It -PRON- PRP 40404 1594 2 is be VBZ 40404 1594 3 laying lay VBG 40404 1594 4 down down RP 40404 1594 5 its -PRON- PRP$ 40404 1594 6 load load NN 40404 1594 7 without without IN 40404 1594 8 assortment assortment NN 40404 1594 9 in in IN 40404 1594 10 unstratified unstratified JJ 40404 1594 11 deposits deposit NNS 40404 1594 12 . . . 40404 1595 1 It -PRON- PRP 40404 1595 2 grinds grind VBZ 40404 1595 3 down down RP 40404 1595 4 and and CC 40404 1595 5 scores score VBZ 40404 1595 6 the the DT 40404 1595 7 rock rock NN 40404 1595 8 over over IN 40404 1595 9 which which WDT 40404 1595 10 it -PRON- PRP 40404 1595 11 moves move VBZ 40404 1595 12 , , , 40404 1595 13 and and CC 40404 1595 14 in in IN 40404 1595 15 the the DT 40404 1595 16 process process NN 40404 1595 17 many many JJ 40404 1595 18 of of IN 40404 1595 19 the the DT 40404 1595 20 pebbles pebble NNS 40404 1595 21 of of IN 40404 1595 22 its -PRON- PRP$ 40404 1595 23 load load NN 40404 1595 24 are be VBP 40404 1595 25 themselves -PRON- PRP 40404 1595 26 also also RB 40404 1595 27 ground ground VBP 40404 1595 28 smooth smooth JJ 40404 1595 29 and and CC 40404 1595 30 scratched scratch VBD 40404 1595 31 . . . 40404 1596 1 Since since IN 40404 1596 2 this this DT 40404 1596 3 work work NN 40404 1596 4 can can MD 40404 1596 5 be be VB 40404 1596 6 done do VBN 40404 1596 7 by by IN 40404 1596 8 no no DT 40404 1596 9 other other JJ 40404 1596 10 agent agent NN 40404 1596 11 , , , 40404 1596 12 we -PRON- PRP 40404 1596 13 must must MD 40404 1596 14 conclude conclude VB 40404 1596 15 that that IN 40404 1596 16 the the DT 40404 1596 17 northeastern northeastern JJ 40404 1596 18 part part NN 40404 1596 19 of of IN 40404 1596 20 our -PRON- PRP$ 40404 1596 21 own own JJ 40404 1596 22 continent continent NN 40404 1596 23 was be VBD 40404 1596 24 covered cover VBN 40404 1596 25 in in IN 40404 1596 26 the the DT 40404 1596 27 recent recent JJ 40404 1596 28 past past NN 40404 1596 29 by by IN 40404 1596 30 glacier glacier NN 40404 1596 31 ice ice NN 40404 1596 32 , , , 40404 1596 33 as as IN 40404 1596 34 Greenland Greenland NNP 40404 1596 35 is be VBZ 40404 1596 36 to to NN 40404 1596 37 - - HYPH 40404 1596 38 day day NN 40404 1596 39 . . . 40404 1597 1 Valley Valley NNP 40404 1597 2 Glaciers Glaciers NNP 40404 1597 3 The the DT 40404 1597 4 work work NN 40404 1597 5 of of IN 40404 1597 6 glacier glacier NN 40404 1597 7 ice ice NN 40404 1597 8 can can MD 40404 1597 9 be be VB 40404 1597 10 most most RBS 40404 1597 11 conveniently conveniently RB 40404 1597 12 studied study VBN 40404 1597 13 in in IN 40404 1597 14 the the DT 40404 1597 15 separate separate JJ 40404 1597 16 ice ice NN 40404 1597 17 streams stream NNS 40404 1597 18 which which WDT 40404 1597 19 creep creep VBP 40404 1597 20 down down RP 40404 1597 21 mountain mountain NN 40404 1597 22 valleys valley NNS 40404 1597 23 in in IN 40404 1597 24 many many JJ 40404 1597 25 regions region NNS 40404 1597 26 such such JJ 40404 1597 27 as as IN 40404 1597 28 Alaska Alaska NNP 40404 1597 29 , , , 40404 1597 30 the the DT 40404 1597 31 western western JJ 40404 1597 32 mountains mountain NNS 40404 1597 33 of of IN 40404 1597 34 the the DT 40404 1597 35 United United NNP 40404 1597 36 States States NNP 40404 1597 37 and and CC 40404 1597 38 Canada Canada NNP 40404 1597 39 , , , 40404 1597 40 the the DT 40404 1597 41 Himalayas Himalayas NNP 40404 1597 42 , , , 40404 1597 43 and and CC 40404 1597 44 the the DT 40404 1597 45 Alps Alps NNPS 40404 1597 46 . . . 40404 1598 1 As as IN 40404 1598 2 the the DT 40404 1598 3 glaciers glacier NNS 40404 1598 4 of of IN 40404 1598 5 the the DT 40404 1598 6 Alps Alps NNPS 40404 1598 7 have have VBP 40404 1598 8 been be VBN 40404 1598 9 studied study VBN 40404 1598 10 longer long RBR 40404 1598 11 and and CC 40404 1598 12 more more RBR 40404 1598 13 thoroughly thoroughly RB 40404 1598 14 than than IN 40404 1598 15 any any DT 40404 1598 16 others other NNS 40404 1598 17 , , , 40404 1598 18 we -PRON- PRP 40404 1598 19 shall shall MD 40404 1598 20 describe describe VB 40404 1598 21 them -PRON- PRP 40404 1598 22 in in IN 40404 1598 23 some some DT 40404 1598 24 detail detail NN 40404 1598 25 as as IN 40404 1598 26 examples example NNS 40404 1598 27 of of IN 40404 1598 28 valley valley NNP 40404 1598 29 glaciers glacier NNS 40404 1598 30 in in IN 40404 1598 31 all all DT 40404 1598 32 parts part NNS 40404 1598 33 of of IN 40404 1598 34 the the DT 40404 1598 35 world world NN 40404 1598 36 . . . 40404 1599 1 = = NFP 40404 1599 2 Conditions condition NNS 40404 1599 3 of of IN 40404 1599 4 glacier glacier NN 40404 1599 5 formation.= formation.= CD 40404 1599 6 The the DT 40404 1599 7 condition condition NN 40404 1599 8 of of IN 40404 1599 9 the the DT 40404 1599 10 great great JJ 40404 1599 11 accumulation accumulation NN 40404 1599 12 of of IN 40404 1599 13 snow snow NN 40404 1599 14 to to IN 40404 1599 15 which which WDT 40404 1599 16 glaciers glacier NNS 40404 1599 17 are be VBP 40404 1599 18 due due JJ 40404 1599 19 -- -- : 40404 1599 20 that that IN 40404 1599 21 more more RBR 40404 1599 22 or or CC 40404 1599 23 less less JJR 40404 1599 24 of of IN 40404 1599 25 each each DT 40404 1599 26 winter winter NN 40404 1599 27 's 's POS 40404 1599 28 snow snow NN 40404 1599 29 should should MD 40404 1599 30 be be VB 40404 1599 31 left leave VBN 40404 1599 32 over over IN 40404 1599 33 unmelted unmelted JJ 40404 1599 34 and and CC 40404 1599 35 unevaporated unevaporated JJ 40404 1599 36 to to IN 40404 1599 37 the the DT 40404 1599 38 next next JJ 40404 1599 39 -- -- : 40404 1599 40 is be VBZ 40404 1599 41 fully fully RB 40404 1599 42 met meet VBN 40404 1599 43 in in IN 40404 1599 44 the the DT 40404 1599 45 Alps Alps NNP 40404 1599 46 . . . 40404 1600 1 There there EX 40404 1600 2 is be VBZ 40404 1600 3 abundant abundant JJ 40404 1600 4 moisture moisture NN 40404 1600 5 brought bring VBN 40404 1600 6 by by IN 40404 1600 7 the the DT 40404 1600 8 winds wind NNS 40404 1600 9 from from IN 40404 1600 10 neighboring neighbor VBG 40404 1600 11 seas sea NNS 40404 1600 12 . . . 40404 1601 1 The the DT 40404 1601 2 currents current NNS 40404 1601 3 of of IN 40404 1601 4 moist moist JJ 40404 1601 5 air air NN 40404 1601 6 driven drive VBN 40404 1601 7 up up RP 40404 1601 8 the the DT 40404 1601 9 mountain mountain NN 40404 1601 10 slopes slope NNS 40404 1601 11 are be VBP 40404 1601 12 cooled cool VBN 40404 1601 13 by by IN 40404 1601 14 their -PRON- PRP$ 40404 1601 15 own own JJ 40404 1601 16 expansion expansion NN 40404 1601 17 as as IN 40404 1601 18 they -PRON- PRP 40404 1601 19 rise rise VBP 40404 1601 20 , , , 40404 1601 21 and and CC 40404 1601 22 the the DT 40404 1601 23 moisture moisture NN 40404 1601 24 which which WDT 40404 1601 25 they -PRON- PRP 40404 1601 26 contain contain VBP 40404 1601 27 is be VBZ 40404 1601 28 condensed condense VBN 40404 1601 29 at at IN 40404 1601 30 a a DT 40404 1601 31 temperature temperature NN 40404 1601 32 at at IN 40404 1601 33 or or CC 40404 1601 34 below below IN 40404 1601 35 32 32 CD 40404 1601 36 ° ° NNS 40404 1601 37 F. F. NNP 40404 1601 38 , , , 40404 1601 39 and and CC 40404 1601 40 therefore therefore RB 40404 1601 41 is be VBZ 40404 1601 42 precipitated precipitate VBN 40404 1601 43 in in IN 40404 1601 44 the the DT 40404 1601 45 form form NN 40404 1601 46 of of IN 40404 1601 47 snow snow NN 40404 1601 48 . . . 40404 1602 1 The the DT 40404 1602 2 summers summer NNS 40404 1602 3 are be VBP 40404 1602 4 cool cool JJ 40404 1602 5 and and CC 40404 1602 6 their -PRON- PRP$ 40404 1602 7 heat heat NN 40404 1602 8 does do VBZ 40404 1602 9 not not RB 40404 1602 10 suffice suffice VB 40404 1602 11 to to TO 40404 1602 12 completely completely RB 40404 1602 13 melt melt VB 40404 1602 14 the the DT 40404 1602 15 heavy heavy JJ 40404 1602 16 snow snow NN 40404 1602 17 of of IN 40404 1602 18 the the DT 40404 1602 19 preceding precede VBG 40404 1602 20 winter winter NN 40404 1602 21 . . . 40404 1603 1 On on IN 40404 1603 2 the the DT 40404 1603 3 Alps Alps NNP 40404 1603 4 the the DT 40404 1603 5 _ _ NNP 40404 1603 6 snow snow NN 40404 1603 7 line_--the line_--the DT 40404 1603 8 lower low JJR 40404 1603 9 limit limit NN 40404 1603 10 of of IN 40404 1603 11 permanent permanent JJ 40404 1603 12 snow snow NN 40404 1603 13 -- -- : 40404 1603 14 is be VBZ 40404 1603 15 drawn draw VBN 40404 1603 16 at at IN 40404 1603 17 about about RB 40404 1603 18 eight eight CD 40404 1603 19 thousand thousand CD 40404 1603 20 five five CD 40404 1603 21 hundred hundred CD 40404 1603 22 feet foot NNS 40404 1603 23 above above IN 40404 1603 24 sea sea NN 40404 1603 25 level level NN 40404 1603 26 . . . 40404 1604 1 Above above IN 40404 1604 2 the the DT 40404 1604 3 snow snow NN 40404 1604 4 line line NN 40404 1604 5 on on IN 40404 1604 6 the the DT 40404 1604 7 slopes slope NNS 40404 1604 8 and and CC 40404 1604 9 crests crest NNS 40404 1604 10 , , , 40404 1604 11 where where WRB 40404 1604 12 these these DT 40404 1604 13 are be VBP 40404 1604 14 not not RB 40404 1604 15 too too RB 40404 1604 16 steep steep JJ 40404 1604 17 , , , 40404 1604 18 the the DT 40404 1604 19 snow snow NN 40404 1604 20 lies lie VBZ 40404 1604 21 the the DT 40404 1604 22 year year NN 40404 1604 23 round round NN 40404 1604 24 and and CC 40404 1604 25 gathers gather NNS 40404 1604 26 in in IN 40404 1604 27 valley valley NNP 40404 1604 28 heads head NNS 40404 1604 29 to to IN 40404 1604 30 a a DT 40404 1604 31 depth depth NN 40404 1604 32 of of IN 40404 1604 33 hundreds hundred NNS 40404 1604 34 of of IN 40404 1604 35 feet foot NNS 40404 1604 36 . . . 40404 1605 1 [ [ -LRB- 40404 1605 2 Illustration illustration NN 40404 1605 3 : : : 40404 1605 4 Fig Fig NNP 40404 1605 5 . . . 40404 1606 1 93 93 CD 40404 1606 2 . . . 40404 1607 1 Glaciers glacier NNS 40404 1607 2 heading head VBG 40404 1607 3 in in IN 40404 1607 4 Snow Snow NNP 40404 1607 5 - - HYPH 40404 1607 6 filled fill VBN 40404 1607 7 Amphitheaters Amphitheaters NNP 40404 1607 8 , , , 40404 1607 9 the the DT 40404 1607 10 Alps Alps NNPS 40404 1607 11 ] ] -RRB- 40404 1607 12 [ [ -LRB- 40404 1607 13 Illustration illustration NN 40404 1607 14 : : : 40404 1607 15 Fig Fig NNP 40404 1607 16 . . . 40404 1608 1 94 94 CD 40404 1608 2 . . . 40404 1609 1 Bergschrund Bergschrund NNP 40404 1609 2 of of IN 40404 1609 3 a a DT 40404 1609 4 Glacier Glacier NNP 40404 1609 5 in in IN 40404 1609 6 Colorado Colorado NNP 40404 1609 7 ] ] -RRB- 40404 1609 8 This this DT 40404 1609 9 is be VBZ 40404 1609 10 but but CC 40404 1609 11 a a DT 40404 1609 12 small small JJ 40404 1609 13 fraction fraction NN 40404 1609 14 of of IN 40404 1609 15 the the DT 40404 1609 16 thickness thickness NN 40404 1609 17 to to TO 40404 1609 18 which which WDT 40404 1609 19 snow snow NN 40404 1609 20 would would MD 40404 1609 21 be be VB 40404 1609 22 piled pile VBN 40404 1609 23 on on IN 40404 1609 24 the the DT 40404 1609 25 Alps Alps NNPS 40404 1609 26 were be VBD 40404 1609 27 it -PRON- PRP 40404 1609 28 not not RB 40404 1609 29 constantly constantly RB 40404 1609 30 being be VBG 40404 1609 31 drained drain VBN 40404 1609 32 away away RB 40404 1609 33 . . . 40404 1610 1 Below below IN 40404 1610 2 the the DT 40404 1610 3 snow snow NN 40404 1610 4 fields field NNS 40404 1610 5 which which WDT 40404 1610 6 mantle mantle VBP 40404 1610 7 the the DT 40404 1610 8 heights height NNS 40404 1610 9 the the DT 40404 1610 10 mountain mountain NN 40404 1610 11 valleys valley NNS 40404 1610 12 are be VBP 40404 1610 13 occupied occupy VBN 40404 1610 14 by by IN 40404 1610 15 glaciers glacier NNS 40404 1610 16 which which WDT 40404 1610 17 extend extend VBP 40404 1610 18 as as RB 40404 1610 19 much much JJ 40404 1610 20 as as IN 40404 1610 21 a a DT 40404 1610 22 vertical vertical JJ 40404 1610 23 mile mile NN 40404 1610 24 below below IN 40404 1610 25 the the DT 40404 1610 26 snow snow NN 40404 1610 27 line line NN 40404 1610 28 . . . 40404 1611 1 The the DT 40404 1611 2 presence presence NN 40404 1611 3 in in IN 40404 1611 4 the the DT 40404 1611 5 midst midst NN 40404 1611 6 of of IN 40404 1611 7 forests forest NNS 40404 1611 8 and and CC 40404 1611 9 meadows meadow NNS 40404 1611 10 and and CC 40404 1611 11 cultivated cultivate VBN 40404 1611 12 fields field NNS 40404 1611 13 of of IN 40404 1611 14 these these DT 40404 1611 15 tongues tongue NNS 40404 1611 16 of of IN 40404 1611 17 ice ice NN 40404 1611 18 , , , 40404 1611 19 ever ever RB 40404 1611 20 melting melt VBG 40404 1611 21 and and CC 40404 1611 22 yet yet RB 40404 1611 23 from from IN 40404 1611 24 year year NN 40404 1611 25 to to IN 40404 1611 26 year year NN 40404 1611 27 losing lose VBG 40404 1611 28 none none NN 40404 1611 29 of of IN 40404 1611 30 their -PRON- PRP$ 40404 1611 31 bulk bulk NN 40404 1611 32 , , , 40404 1611 33 proves prove VBZ 40404 1611 34 that that IN 40404 1611 35 their -PRON- PRP$ 40404 1611 36 loss loss NN 40404 1611 37 is be VBZ 40404 1611 38 made make VBN 40404 1611 39 good good JJ 40404 1611 40 in in IN 40404 1611 41 the the DT 40404 1611 42 only only JJ 40404 1611 43 possible possible JJ 40404 1611 44 way way NN 40404 1611 45 . . . 40404 1612 1 They -PRON- PRP 40404 1612 2 are be VBP 40404 1612 3 fed feed VBN 40404 1612 4 by by IN 40404 1612 5 snow snow NN 40404 1612 6 fields field NNS 40404 1612 7 above above RB 40404 1612 8 , , , 40404 1612 9 whose whose WP$ 40404 1612 10 surplus surplus NN 40404 1612 11 of of IN 40404 1612 12 snow snow NN 40404 1612 13 they -PRON- PRP 40404 1612 14 drain drain VBP 40404 1612 15 away away RB 40404 1612 16 in in IN 40404 1612 17 the the DT 40404 1612 18 form form NN 40404 1612 19 of of IN 40404 1612 20 ice ice NN 40404 1612 21 . . . 40404 1613 1 The the DT 40404 1613 2 presence presence NN 40404 1613 3 of of IN 40404 1613 4 glaciers glacier NNS 40404 1613 5 below below IN 40404 1613 6 the the DT 40404 1613 7 snow snow NN 40404 1613 8 line line NN 40404 1613 9 is be VBZ 40404 1613 10 a a DT 40404 1613 11 clear clear JJ 40404 1613 12 proof proof NN 40404 1613 13 that that IN 40404 1613 14 , , , 40404 1613 15 rigid rigid JJ 40404 1613 16 and and CC 40404 1613 17 motionless motionless JJ 40404 1613 18 as as IN 40404 1613 19 they -PRON- PRP 40404 1613 20 appear appear VBP 40404 1613 21 , , , 40404 1613 22 glaciers glacier NNS 40404 1613 23 really really RB 40404 1613 24 are be VBP 40404 1613 25 in in IN 40404 1613 26 constant constant JJ 40404 1613 27 motion motion NN 40404 1613 28 down down IN 40404 1613 29 valley valley NNP 40404 1613 30 . . . 40404 1614 1 = = NFP 40404 1614 2 The the DT 40404 1614 3 névé névé NNS 40404 1614 4 field.= field.= VBD 40404 1614 5 The the DT 40404 1614 6 head head NN 40404 1614 7 of of IN 40404 1614 8 an an DT 40404 1614 9 Alpine Alpine NNP 40404 1614 10 valley valley NN 40404 1614 11 occupied occupy VBN 40404 1614 12 by by IN 40404 1614 13 a a DT 40404 1614 14 glacier glacier NN 40404 1614 15 is be VBZ 40404 1614 16 commonly commonly RB 40404 1614 17 a a DT 40404 1614 18 broad broad JJ 40404 1614 19 amphitheater amphitheater NN 40404 1614 20 deeply deeply RB 40404 1614 21 filled fill VBN 40404 1614 22 with with IN 40404 1614 23 snow snow NN 40404 1614 24 ( ( -LRB- 40404 1614 25 Fig fig NN 40404 1614 26 . . . 40404 1615 1 93 93 CD 40404 1615 2 ) ) -RRB- 40404 1615 3 . . . 40404 1616 1 Great great JJ 40404 1616 2 peaks peak NNS 40404 1616 3 tower tower NN 40404 1616 4 above above IN 40404 1616 5 it -PRON- PRP 40404 1616 6 , , , 40404 1616 7 and and CC 40404 1616 8 snowy snowy JJ 40404 1616 9 slopes slope NNS 40404 1616 10 rise rise VBP 40404 1616 11 on on IN 40404 1616 12 either either DT 40404 1616 13 side side NN 40404 1616 14 on on IN 40404 1616 15 the the DT 40404 1616 16 flanks flank NNS 40404 1616 17 of of IN 40404 1616 18 mountain mountain NN 40404 1616 19 spurs spur NNS 40404 1616 20 . . . 40404 1617 1 From from IN 40404 1617 2 these these DT 40404 1617 3 heights height NNS 40404 1617 4 fierce fierce JJ 40404 1617 5 winds wind NNS 40404 1617 6 drift drift VBP 40404 1617 7 the the DT 40404 1617 8 snows snow NNS 40404 1617 9 into into IN 40404 1617 10 the the DT 40404 1617 11 amphitheater amphitheater NN 40404 1617 12 , , , 40404 1617 13 and and CC 40404 1617 14 avalanches avalanche NNS 40404 1617 15 pour pour VBP 40404 1617 16 in in IN 40404 1617 17 their -PRON- PRP$ 40404 1617 18 torrents torrent NNS 40404 1617 19 of of IN 40404 1617 20 snow snow NN 40404 1617 21 and and CC 40404 1617 22 waste waste NN 40404 1617 23 . . . 40404 1618 1 The the DT 40404 1618 2 snow snow NN 40404 1618 3 of of IN 40404 1618 4 the the DT 40404 1618 5 amphitheater amphitheater NN 40404 1618 6 is be VBZ 40404 1618 7 like like IN 40404 1618 8 that that DT 40404 1618 9 of of IN 40404 1618 10 drifts drift NNS 40404 1618 11 in in IN 40404 1618 12 late late JJ 40404 1618 13 winter winter NN 40404 1618 14 after after IN 40404 1618 15 many many JJ 40404 1618 16 successive successive JJ 40404 1618 17 thaws thaw NNS 40404 1618 18 and and CC 40404 1618 19 freezings freezing NNS 40404 1618 20 . . . 40404 1619 1 It -PRON- PRP 40404 1619 2 is be VBZ 40404 1619 3 made make VBN 40404 1619 4 of of IN 40404 1619 5 hard hard JJ 40404 1619 6 grains grain NNS 40404 1619 7 and and CC 40404 1619 8 pellets pellet NNS 40404 1619 9 and and CC 40404 1619 10 is be VBZ 40404 1619 11 called call VBN 40404 1619 12 _ _ NNP 40404 1619 13 névé névé NNP 40404 1619 14 _ _ NNP 40404 1619 15 . . . 40404 1620 1 Beneath beneath IN 40404 1620 2 the the DT 40404 1620 3 surface surface NN 40404 1620 4 of of IN 40404 1620 5 the the DT 40404 1620 6 névé névé NNP 40404 1620 7 field field NN 40404 1620 8 and and CC 40404 1620 9 at at IN 40404 1620 10 its -PRON- PRP$ 40404 1620 11 outlet outlet NN 40404 1620 12 the the DT 40404 1620 13 granular granular JJ 40404 1620 14 névé névé NNP 40404 1620 15 has have VBZ 40404 1620 16 been be VBN 40404 1620 17 compacted compact VBN 40404 1620 18 to to IN 40404 1620 19 a a DT 40404 1620 20 mass mass NN 40404 1620 21 of of IN 40404 1620 22 porous porous JJ 40404 1620 23 crystalline crystalline NN 40404 1620 24 ice ice NN 40404 1620 25 . . . 40404 1621 1 Snow Snow NNP 40404 1621 2 has have VBZ 40404 1621 3 been be VBN 40404 1621 4 changed change VBN 40404 1621 5 to to IN 40404 1621 6 névé névé NNP 40404 1621 7 , , , 40404 1621 8 and and CC 40404 1621 9 névé névé NNP 40404 1621 10 to to IN 40404 1621 11 glacial glacial JJ 40404 1621 12 ice ice NN 40404 1621 13 , , , 40404 1621 14 both both CC 40404 1621 15 by by IN 40404 1621 16 pressure pressure NN 40404 1621 17 , , , 40404 1621 18 which which WDT 40404 1621 19 drives drive VBZ 40404 1621 20 the the DT 40404 1621 21 air air NN 40404 1621 22 from from IN 40404 1621 23 the the DT 40404 1621 24 interspaces interspace NNS 40404 1621 25 of of IN 40404 1621 26 the the DT 40404 1621 27 snowflakes snowflake NNS 40404 1621 28 , , , 40404 1621 29 and and CC 40404 1621 30 also also RB 40404 1621 31 by by IN 40404 1621 32 successive successive JJ 40404 1621 33 meltings melting NNS 40404 1621 34 and and CC 40404 1621 35 freezings freezing NNS 40404 1621 36 , , , 40404 1621 37 much much RB 40404 1621 38 as as IN 40404 1621 39 a a DT 40404 1621 40 snowball snowball NN 40404 1621 41 is be VBZ 40404 1621 42 packed pack VBN 40404 1621 43 in in IN 40404 1621 44 the the DT 40404 1621 45 warm warm JJ 40404 1621 46 hand hand NN 40404 1621 47 and and CC 40404 1621 48 becomes become VBZ 40404 1621 49 frozen frozen JJ 40404 1621 50 to to IN 40404 1621 51 a a DT 40404 1621 52 ball ball NN 40404 1621 53 of of IN 40404 1621 54 ice ice NN 40404 1621 55 . . . 40404 1622 1 [ [ -LRB- 40404 1622 2 Illustration illustration NN 40404 1622 3 : : : 40404 1622 4 Fig Fig NNP 40404 1622 5 . . . 40404 1623 1 95 95 CD 40404 1623 2 . . . 40404 1624 1 Sea Sea NNP 40404 1624 2 Wall Wall NNP 40404 1624 3 of of IN 40404 1624 4 the the DT 40404 1624 5 Muir Muir NNP 40404 1624 6 Glacier Glacier NNP 40404 1624 7 , , , 40404 1624 8 Alaska Alaska NNP 40404 1624 9 ] ] -RRB- 40404 1624 10 = = NFP 40404 1624 11 The the DT 40404 1624 12 bergschrund.= bergschrund.= NN 40404 1624 13 The the DT 40404 1624 14 névé névé NNS 40404 1624 15 is be VBZ 40404 1624 16 in in IN 40404 1624 17 slow slow JJ 40404 1624 18 motion motion NN 40404 1624 19 . . . 40404 1625 1 It -PRON- PRP 40404 1625 2 breaks break VBZ 40404 1625 3 itself -PRON- PRP 40404 1625 4 loose loose JJ 40404 1625 5 from from IN 40404 1625 6 the the DT 40404 1625 7 thinner thin JJR 40404 1625 8 snows snow NNS 40404 1625 9 about about IN 40404 1625 10 it -PRON- PRP 40404 1625 11 , , , 40404 1625 12 too too RB 40404 1625 13 shallow shallow JJ 40404 1625 14 to to TO 40404 1625 15 share share VB 40404 1625 16 its -PRON- PRP$ 40404 1625 17 motion motion NN 40404 1625 18 , , , 40404 1625 19 and and CC 40404 1625 20 from from IN 40404 1625 21 the the DT 40404 1625 22 rock rock NN 40404 1625 23 rim rim NN 40404 1625 24 which which WDT 40404 1625 25 surrounds surround VBZ 40404 1625 26 it -PRON- PRP 40404 1625 27 , , , 40404 1625 28 forming form VBG 40404 1625 29 a a DT 40404 1625 30 deep deep JJ 40404 1625 31 fissure fissure NN 40404 1625 32 called call VBN 40404 1625 33 the the DT 40404 1625 34 bergschrund bergschrund NN 40404 1625 35 , , , 40404 1625 36 sometimes sometimes RB 40404 1625 37 a a DT 40404 1625 38 score score NN 40404 1625 39 and and CC 40404 1625 40 more more JJR 40404 1625 41 feet foot NNS 40404 1625 42 wide wide JJ 40404 1625 43 ( ( -LRB- 40404 1625 44 Fig fig NN 40404 1625 45 . . . 40404 1626 1 94 94 CD 40404 1626 2 ) ) -RRB- 40404 1626 3 . . . 40404 1627 1 = = NFP 40404 1627 2 Size size NN 40404 1627 3 of of IN 40404 1627 4 glaciers.= glaciers.= NNP 40404 1627 5 The the DT 40404 1627 6 ice ice NN 40404 1627 7 streams stream NNS 40404 1627 8 of of IN 40404 1627 9 the the DT 40404 1627 10 Alps Alps NNPS 40404 1627 11 vary vary VBP 40404 1627 12 in in IN 40404 1627 13 size size NN 40404 1627 14 according accord VBG 40404 1627 15 to to IN 40404 1627 16 the the DT 40404 1627 17 amount amount NN 40404 1627 18 of of IN 40404 1627 19 precipitation precipitation NN 40404 1627 20 and and CC 40404 1627 21 the the DT 40404 1627 22 area area NN 40404 1627 23 of of IN 40404 1627 24 the the DT 40404 1627 25 névé névé NNP 40404 1627 26 fields field NNS 40404 1627 27 which which WDT 40404 1627 28 they -PRON- PRP 40404 1627 29 drain drain VBP 40404 1627 30 . . . 40404 1628 1 The the DT 40404 1628 2 largest large JJS 40404 1628 3 of of IN 40404 1628 4 Alpine alpine JJ 40404 1628 5 glaciers glacier NNS 40404 1628 6 , , , 40404 1628 7 the the DT 40404 1628 8 Aletsch Aletsch NNP 40404 1628 9 , , , 40404 1628 10 is be VBZ 40404 1628 11 nearly nearly RB 40404 1628 12 ten ten CD 40404 1628 13 miles mile NNS 40404 1628 14 long long JJ 40404 1628 15 and and CC 40404 1628 16 has have VBZ 40404 1628 17 an an DT 40404 1628 18 average average JJ 40404 1628 19 width width NN 40404 1628 20 of of IN 40404 1628 21 about about RB 40404 1628 22 a a DT 40404 1628 23 mile mile NN 40404 1628 24 . . . 40404 1629 1 The the DT 40404 1629 2 thickness thickness NN 40404 1629 3 of of IN 40404 1629 4 some some DT 40404 1629 5 of of IN 40404 1629 6 the the DT 40404 1629 7 glaciers glacier NNS 40404 1629 8 of of IN 40404 1629 9 the the DT 40404 1629 10 Alps Alps NNPS 40404 1629 11 is be VBZ 40404 1629 12 as as RB 40404 1629 13 much much JJ 40404 1629 14 as as IN 40404 1629 15 a a DT 40404 1629 16 thousand thousand CD 40404 1629 17 feet foot NNS 40404 1629 18 . . . 40404 1630 1 Giant giant JJ 40404 1630 2 glaciers glacier NNS 40404 1630 3 more more RBR 40404 1630 4 than than IN 40404 1630 5 twice twice PDT 40404 1630 6 the the DT 40404 1630 7 length length NN 40404 1630 8 of of IN 40404 1630 9 the the DT 40404 1630 10 longest long JJS 40404 1630 11 in in IN 40404 1630 12 the the DT 40404 1630 13 Alps Alps NNPS 40404 1630 14 occur occur VB 40404 1630 15 on on IN 40404 1630 16 the the DT 40404 1630 17 south south JJ 40404 1630 18 slope slope NN 40404 1630 19 of of IN 40404 1630 20 the the DT 40404 1630 21 Himalaya Himalaya NNP 40404 1630 22 Mountains Mountains NNPS 40404 1630 23 , , , 40404 1630 24 which which WDT 40404 1630 25 receive receive VBP 40404 1630 26 frequent frequent JJ 40404 1630 27 precipitations precipitation NNS 40404 1630 28 of of IN 40404 1630 29 snow snow NN 40404 1630 30 from from IN 40404 1630 31 moist moist JJ 40404 1630 32 winds wind NNS 40404 1630 33 from from IN 40404 1630 34 the the DT 40404 1630 35 Indian Indian NNP 40404 1630 36 Ocean Ocean NNP 40404 1630 37 . . . 40404 1631 1 The the DT 40404 1631 2 best well RBS 40404 1631 3 known know VBN 40404 1631 4 of of IN 40404 1631 5 the the DT 40404 1631 6 many many JJ 40404 1631 7 immense immense JJ 40404 1631 8 glaciers glacier NNS 40404 1631 9 of of IN 40404 1631 10 Alaska Alaska NNP 40404 1631 11 , , , 40404 1631 12 the the DT 40404 1631 13 Muir Muir NNP 40404 1631 14 , , , 40404 1631 15 has have VBZ 40404 1631 16 an an DT 40404 1631 17 area area NN 40404 1631 18 of of IN 40404 1631 19 about about IN 40404 1631 20 eight eight CD 40404 1631 21 hundred hundred CD 40404 1631 22 square square JJ 40404 1631 23 miles mile NNS 40404 1631 24 ( ( -LRB- 40404 1631 25 Fig fig NN 40404 1631 26 . . . 40404 1632 1 95 95 CD 40404 1632 2 ) ) -RRB- 40404 1632 3 . . . 40404 1633 1 [ [ -LRB- 40404 1633 2 Illustration illustration NN 40404 1633 3 : : : 40404 1633 4 Fig Fig NNP 40404 1633 5 . . . 40404 1634 1 96 96 CD 40404 1634 2 . . . 40404 1635 1 Diagram Diagram NNP 40404 1635 2 showing show VBG 40404 1635 3 Movement movement NN 40404 1635 4 of of IN 40404 1635 5 Row Row NNP 40404 1635 6 of of IN 40404 1635 7 Stakes Stakes NNPS 40404 1635 8 _ _ NNP 40404 1635 9 a a DT 40404 1635 10 _ _ NNP 40404 1635 11 , , , 40404 1635 12 set set VBN 40404 1635 13 in in IN 40404 1635 14 a a DT 40404 1635 15 direct direct JJ 40404 1635 16 line line NN 40404 1635 17 across across IN 40404 1635 18 the the DT 40404 1635 19 surface surface NN 40404 1635 20 of of IN 40404 1635 21 a a DT 40404 1635 22 glacier glacier NN 40404 1635 23 ; ; : 40404 1635 24 _ _ NNP 40404 1635 25 b b NNP 40404 1635 26 _ _ NNP 40404 1635 27 , , , 40404 1635 28 _ _ NNP 40404 1635 29 c c NNP 40404 1635 30 _ _ NNP 40404 1635 31 , , , 40404 1635 32 and and CC 40404 1635 33 _ _ NNP 40404 1635 34 d d NNP 40404 1635 35 _ _ NNP 40404 1635 36 , , , 40404 1635 37 successive successive JJ 40404 1635 38 later later JJ 40404 1635 39 positions position NNS 40404 1635 40 of of IN 40404 1635 41 the the DT 40404 1635 42 stakes stake NNS 40404 1635 43 ] ] -RRB- 40404 1635 44 [ [ -LRB- 40404 1635 45 Illustration illustration NN 40404 1635 46 : : : 40404 1635 47 Fig Fig NNP 40404 1635 48 . . . 40404 1636 1 97 97 CD 40404 1636 2 . . . 40404 1637 1 Diagram Diagram NNP 40404 1637 2 showing show VBG 40404 1637 3 Movement Movement NNP 40404 1637 4 of of IN 40404 1637 5 Vertical vertical JJ 40404 1637 6 Row Row NNP 40404 1637 7 of of IN 40404 1637 8 Stakes Stakes NNPS 40404 1637 9 _ _ NNP 40404 1637 10 a a DT 40404 1637 11 _ _ NNP 40404 1637 12 , , , 40404 1637 13 set set VBN 40404 1637 14 on on IN 40404 1637 15 side side NN 40404 1637 16 of of IN 40404 1637 17 glacier glacier NN 40404 1637 18 ] ] -RRB- 40404 1637 19 = = NFP 40404 1637 20 Glacier Glacier NNP 40404 1637 21 motion.= motion.= CD 40404 1637 22 The the DT 40404 1637 23 motion motion NN 40404 1637 24 of of IN 40404 1637 25 the the DT 40404 1637 26 glaciers glacier NNS 40404 1637 27 of of IN 40404 1637 28 the the DT 40404 1637 29 Alps Alps NNP 40404 1637 30 seldom seldom RB 40404 1637 31 exceeds exceed VBZ 40404 1637 32 one one CD 40404 1637 33 or or CC 40404 1637 34 two two CD 40404 1637 35 feet foot NNS 40404 1637 36 a a DT 40404 1637 37 day day NN 40404 1637 38 . . . 40404 1638 1 Large large JJ 40404 1638 2 glaciers glacier NNS 40404 1638 3 , , , 40404 1638 4 because because IN 40404 1638 5 of of IN 40404 1638 6 the the DT 40404 1638 7 enormous enormous JJ 40404 1638 8 pressure pressure NN 40404 1638 9 of of IN 40404 1638 10 their -PRON- PRP$ 40404 1638 11 weight weight NN 40404 1638 12 and and CC 40404 1638 13 because because IN 40404 1638 14 of of IN 40404 1638 15 less less JJR 40404 1638 16 marginal marginal JJ 40404 1638 17 resistance resistance NN 40404 1638 18 , , , 40404 1638 19 move move VBP 40404 1638 20 faster fast RBR 40404 1638 21 than than IN 40404 1638 22 small small JJ 40404 1638 23 ones one NNS 40404 1638 24 . . . 40404 1639 1 The the DT 40404 1639 2 Muir Muir NNP 40404 1639 3 advances advance VBZ 40404 1639 4 at at IN 40404 1639 5 the the DT 40404 1639 6 rate rate NN 40404 1639 7 of of IN 40404 1639 8 seven seven CD 40404 1639 9 feet foot NNS 40404 1639 10 a a DT 40404 1639 11 day day NN 40404 1639 12 , , , 40404 1639 13 and and CC 40404 1639 14 some some DT 40404 1639 15 of of IN 40404 1639 16 the the DT 40404 1639 17 larger large JJR 40404 1639 18 tide tide NN 40404 1639 19 glaciers glacier NNS 40404 1639 20 of of IN 40404 1639 21 Greenland Greenland NNP 40404 1639 22 are be VBP 40404 1639 23 reported report VBN 40404 1639 24 to to TO 40404 1639 25 move move VB 40404 1639 26 at at IN 40404 1639 27 the the DT 40404 1639 28 exceptional exceptional JJ 40404 1639 29 rate rate NN 40404 1639 30 of of IN 40404 1639 31 fifty fifty CD 40404 1639 32 feet foot NNS 40404 1639 33 and and CC 40404 1639 34 more more JJR 40404 1639 35 in in IN 40404 1639 36 the the DT 40404 1639 37 same same JJ 40404 1639 38 time time NN 40404 1639 39 . . . 40404 1640 1 Glaciers glacier NNS 40404 1640 2 move move VBP 40404 1640 3 faster fast RBR 40404 1640 4 by by IN 40404 1640 5 day day NN 40404 1640 6 than than IN 40404 1640 7 by by IN 40404 1640 8 night night NN 40404 1640 9 , , , 40404 1640 10 and and CC 40404 1640 11 in in IN 40404 1640 12 summer summer NN 40404 1640 13 than than IN 40404 1640 14 in in IN 40404 1640 15 winter winter NN 40404 1640 16 . . . 40404 1641 1 Other other JJ 40404 1641 2 laws law NNS 40404 1641 3 of of IN 40404 1641 4 glacier glacier NN 40404 1641 5 motion motion NN 40404 1641 6 may may MD 40404 1641 7 be be VB 40404 1641 8 discovered discover VBN 40404 1641 9 by by IN 40404 1641 10 a a DT 40404 1641 11 study study NN 40404 1641 12 of of IN 40404 1641 13 Figures figure NNS 40404 1641 14 96 96 CD 40404 1641 15 and and CC 40404 1641 16 97 97 CD 40404 1641 17 . . . 40404 1642 1 It -PRON- PRP 40404 1642 2 is be VBZ 40404 1642 3 important important JJ 40404 1642 4 to to TO 40404 1642 5 remember remember VB 40404 1642 6 that that IN 40404 1642 7 glaciers glacier NNS 40404 1642 8 do do VBP 40404 1642 9 not not RB 40404 1642 10 slide slide VB 40404 1642 11 bodily bodily RB 40404 1642 12 over over IN 40404 1642 13 their -PRON- PRP$ 40404 1642 14 beds bed NNS 40404 1642 15 , , , 40404 1642 16 but but CC 40404 1642 17 urged urge VBN 40404 1642 18 by by IN 40404 1642 19 gravity gravity NN 40404 1642 20 move move VBP 40404 1642 21 slowly slowly RB 40404 1642 22 down down IN 40404 1642 23 valley valley NN 40404 1642 24 in in IN 40404 1642 25 somewhat somewhat RB 40404 1642 26 the the DT 40404 1642 27 same same JJ 40404 1642 28 way way NN 40404 1642 29 as as IN 40404 1642 30 would would MD 40404 1642 31 a a DT 40404 1642 32 stream stream NN 40404 1642 33 of of IN 40404 1642 34 thick thick JJ 40404 1642 35 mud mud NN 40404 1642 36 . . . 40404 1643 1 Although although IN 40404 1643 2 small small JJ 40404 1643 3 pieces piece NNS 40404 1643 4 of of IN 40404 1643 5 ice ice NN 40404 1643 6 are be VBP 40404 1643 7 brittle brittle JJ 40404 1643 8 , , , 40404 1643 9 the the DT 40404 1643 10 large large JJ 40404 1643 11 mass mass NN 40404 1643 12 of of IN 40404 1643 13 granular granular JJ 40404 1643 14 ice ice NN 40404 1643 15 which which WDT 40404 1643 16 composes compose VBZ 40404 1643 17 a a DT 40404 1643 18 glacier glacier NN 40404 1643 19 acts act NNS 40404 1643 20 as as IN 40404 1643 21 a a DT 40404 1643 22 viscous viscous JJ 40404 1643 23 substance substance NN 40404 1643 24 . . . 40404 1644 1 [ [ -LRB- 40404 1644 2 Illustration illustration NN 40404 1644 3 : : : 40404 1644 4 Fig Fig NNP 40404 1644 5 . . . 40404 1645 1 98 98 CD 40404 1645 2 . . . 40404 1646 1 Crevasses crevasse NNS 40404 1646 2 of of IN 40404 1646 3 a a DT 40404 1646 4 Glacier Glacier NNP 40404 1646 5 , , , 40404 1646 6 Canada Canada NNP 40404 1646 7 ] ] -RRB- 40404 1646 8 = = SYM 40404 1646 9 Crevasses.= Crevasses.= NNP 40404 1646 10 Slight slight JJ 40404 1646 11 changes change NNS 40404 1646 12 of of IN 40404 1646 13 slope slope NN 40404 1646 14 in in IN 40404 1646 15 the the DT 40404 1646 16 glacier glacier NN 40404 1646 17 bed bed NN 40404 1646 18 , , , 40404 1646 19 and and CC 40404 1646 20 the the DT 40404 1646 21 different different JJ 40404 1646 22 rates rate NNS 40404 1646 23 of of IN 40404 1646 24 motion motion NN 40404 1646 25 in in IN 40404 1646 26 different different JJ 40404 1646 27 parts part NNS 40404 1646 28 , , , 40404 1646 29 produce produce VBP 40404 1646 30 tensions tension NNS 40404 1646 31 under under IN 40404 1646 32 which which WDT 40404 1646 33 the the DT 40404 1646 34 ice ice NN 40404 1646 35 cracks crack VBZ 40404 1646 36 and and CC 40404 1646 37 opens open VBZ 40404 1646 38 in in IN 40404 1646 39 great great JJ 40404 1646 40 fissures fissure NNS 40404 1646 41 called call VBN 40404 1646 42 crevasses crevasse NNS 40404 1646 43 . . . 40404 1647 1 At at IN 40404 1647 2 an an DT 40404 1647 3 abrupt abrupt JJ 40404 1647 4 descent descent NN 40404 1647 5 in in IN 40404 1647 6 the the DT 40404 1647 7 bed bed NN 40404 1647 8 the the DT 40404 1647 9 ice ice NN 40404 1647 10 is be VBZ 40404 1647 11 shattered shatter VBN 40404 1647 12 into into IN 40404 1647 13 great great JJ 40404 1647 14 fragments fragment NNS 40404 1647 15 , , , 40404 1647 16 which which WDT 40404 1647 17 unite unite VBP 40404 1647 18 again again RB 40404 1647 19 below below IN 40404 1647 20 the the DT 40404 1647 21 icefall icefall NN 40404 1647 22 . . . 40404 1648 1 Crevasses crevasse NNS 40404 1648 2 are be VBP 40404 1648 3 opened open VBN 40404 1648 4 on on IN 40404 1648 5 lines line NNS 40404 1648 6 at at IN 40404 1648 7 right right JJ 40404 1648 8 angles angle NNS 40404 1648 9 to to IN 40404 1648 10 the the DT 40404 1648 11 direction direction NN 40404 1648 12 of of IN 40404 1648 13 the the DT 40404 1648 14 tension tension NN 40404 1648 15 . . . 40404 1649 1 _ _ NNP 40404 1649 2 Transverse Transverse NNP 40404 1649 3 crevasses crevasse VBZ 40404 1649 4 _ _ NNP 40404 1649 5 are be VBP 40404 1649 6 due due JJ 40404 1649 7 to to IN 40404 1649 8 a a DT 40404 1649 9 convexity convexity NN 40404 1649 10 in in IN 40404 1649 11 the the DT 40404 1649 12 bed bed NN 40404 1649 13 which which WDT 40404 1649 14 stretches stretch VBZ 40404 1649 15 the the DT 40404 1649 16 ice ice NN 40404 1649 17 lengthwise lengthwise RB 40404 1649 18 ( ( -LRB- 40404 1649 19 Fig fig NN 40404 1649 20 . . . 40404 1650 1 99 99 CD 40404 1650 2 ) ) -RRB- 40404 1650 3 . . . 40404 1651 1 _ _ NNP 40404 1651 2 Marginal Marginal NNP 40404 1651 3 crevasses crevasse NNS 40404 1651 4 _ _ NNP 40404 1651 5 are be VBP 40404 1651 6 directed direct VBN 40404 1651 7 upstream upstream JJ 40404 1651 8 and and CC 40404 1651 9 inwards inward NNS 40404 1651 10 ; ; : 40404 1651 11 _ _ NNP 40404 1651 12 radial radial JJ 40404 1651 13 crevasses crevasse NNS 40404 1651 14 _ _ NNP 40404 1651 15 are be VBP 40404 1651 16 found find VBN 40404 1651 17 where where WRB 40404 1651 18 the the DT 40404 1651 19 ice ice NN 40404 1651 20 stream stream NN 40404 1651 21 deploys deploy VBZ 40404 1651 22 from from IN 40404 1651 23 some some DT 40404 1651 24 narrow narrow JJ 40404 1651 25 valley valley NN 40404 1651 26 and and CC 40404 1651 27 spreads spread VBZ 40404 1651 28 upon upon IN 40404 1651 29 some some DT 40404 1651 30 more more RBR 40404 1651 31 open open JJ 40404 1651 32 space space NN 40404 1651 33 . . . 40404 1652 1 What what WP 40404 1652 2 is be VBZ 40404 1652 3 the the DT 40404 1652 4 direction direction NN 40404 1652 5 of of IN 40404 1652 6 the the DT 40404 1652 7 tension tension NN 40404 1652 8 which which WDT 40404 1652 9 causes cause VBZ 40404 1652 10 each each DT 40404 1652 11 and and CC 40404 1652 12 to to TO 40404 1652 13 what what WP 40404 1652 14 is be VBZ 40404 1652 15 it -PRON- PRP 40404 1652 16 due due JJ 40404 1652 17 ? ? . 40404 1653 1 ( ( -LRB- 40404 1653 2 Figs fig NNS 40404 1653 3 . . . 40404 1654 1 100 100 CD 40404 1654 2 and and CC 40404 1654 3 101 101 CD 40404 1654 4 ) ) -RRB- 40404 1654 5 . . . 40404 1655 1 [ [ -LRB- 40404 1655 2 Illustration illustration NN 40404 1655 3 : : : 40404 1655 4 Fig Fig NNP 40404 1655 5 . . . 40404 1656 1 99 99 CD 40404 1656 2 . . . 40404 1657 1 Longitudinal Longitudinal NNP 40404 1657 2 Section Section NNP 40404 1657 3 of of IN 40404 1657 4 a a DT 40404 1657 5 Portion portion NN 40404 1657 6 of of IN 40404 1657 7 a a DT 40404 1657 8 Glacier Glacier NNP 40404 1657 9 , , , 40404 1657 10 showing show VBG 40404 1657 11 Traverse Traverse NNP 40404 1657 12 Crevasses Crevasses NNP 40404 1657 13 ] ] -RRB- 40404 1657 14 [ [ -LRB- 40404 1657 15 Illustration illustration NN 40404 1657 16 : : : 40404 1657 17 Fig Fig NNP 40404 1657 18 . . . 40404 1658 1 100 100 CD 40404 1658 2 . . . 40404 1659 1 Map Map NNP 40404 1659 2 view view NN 40404 1659 3 of of IN 40404 1659 4 Marginal Marginal NNP 40404 1659 5 Crevasses Crevasses NNP 40404 1659 6 ] ] -RRB- 40404 1659 7 [ [ -LRB- 40404 1659 8 Illustration illustration NN 40404 1659 9 : : : 40404 1659 10 Fig Fig NNP 40404 1659 11 . . . 40404 1660 1 101 101 CD 40404 1660 2 . . . 40404 1661 1 The the DT 40404 1661 2 Rhone Rhone NNP 40404 1661 3 Glacier Glacier NNP 40404 1661 4 , , , 40404 1661 5 showing show VBG 40404 1661 6 Radial Radial NNP 40404 1661 7 Crevasses Crevasses NNP 40404 1661 8 , , , 40404 1661 9 the the DT 40404 1661 10 Alps Alps NNPS 40404 1661 11 ] ] -RRB- 40404 1661 12 [ [ -LRB- 40404 1661 13 Illustration illustration NN 40404 1661 14 : : : 40404 1661 15 Fig Fig NNP 40404 1661 16 . . . 40404 1662 1 102 102 CD 40404 1662 2 . . . 40404 1663 1 Map Map NNP 40404 1663 2 View View NNP 40404 1663 3 of of IN 40404 1663 4 the the DT 40404 1663 5 Junction Junction NNP 40404 1663 6 of of IN 40404 1663 7 Two Two NNP 40404 1663 8 Branches Branches NNPS 40404 1663 9 of of IN 40404 1663 10 a a DT 40404 1663 11 Glacier Glacier NNP 40404 1663 12 The the DT 40404 1663 13 moraines moraine NNS 40404 1663 14 are be VBP 40404 1663 15 represented represent VBN 40404 1663 16 by by IN 40404 1663 17 broken broken JJ 40404 1663 18 lines line NNS 40404 1663 19 ] ] -RRB- 40404 1663 20 = = NFP 40404 1663 21 Lateral lateral JJ 40404 1663 22 and and CC 40404 1663 23 medial medial JJ 40404 1663 24 moraines.= moraines.= NNS 40404 1663 25 The the DT 40404 1663 26 surface surface NN 40404 1663 27 of of IN 40404 1663 28 a a DT 40404 1663 29 glacier glacier NN 40404 1663 30 is be VBZ 40404 1663 31 striped stripe VBN 40404 1663 32 lengthwise lengthwise RB 40404 1663 33 by by IN 40404 1663 34 long long JJ 40404 1663 35 dark dark JJ 40404 1663 36 bands band NNS 40404 1663 37 of of IN 40404 1663 38 rock rock NN 40404 1663 39 debris debris NN 40404 1663 40 . . . 40404 1664 1 Those those DT 40404 1664 2 in in IN 40404 1664 3 the the DT 40404 1664 4 center center NN 40404 1664 5 are be VBP 40404 1664 6 called call VBN 40404 1664 7 the the DT 40404 1664 8 medial medial JJ 40404 1664 9 moraines moraine NNS 40404 1664 10 . . . 40404 1665 1 The the DT 40404 1665 2 one one CD 40404 1665 3 on on IN 40404 1665 4 either either DT 40404 1665 5 margin margin NN 40404 1665 6 is be VBZ 40404 1665 7 a a DT 40404 1665 8 lateral lateral JJ 40404 1665 9 moraine moraine NN 40404 1665 10 , , , 40404 1665 11 and and CC 40404 1665 12 is be VBZ 40404 1665 13 clearly clearly RB 40404 1665 14 formed form VBN 40404 1665 15 of of IN 40404 1665 16 waste waste NN 40404 1665 17 which which WDT 40404 1665 18 has have VBZ 40404 1665 19 fallen fall VBN 40404 1665 20 on on IN 40404 1665 21 the the DT 40404 1665 22 edge edge NN 40404 1665 23 of of IN 40404 1665 24 the the DT 40404 1665 25 ice ice NN 40404 1665 26 from from IN 40404 1665 27 the the DT 40404 1665 28 valley valley NNP 40404 1665 29 slopes slope NNS 40404 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moraine NN 40404 1667 15 takes take VBZ 40404 1667 16 its -PRON- PRP$ 40404 1667 17 beginning beginning NN 40404 1667 18 at at IN 40404 1667 19 the the DT 40404 1667 20 junction junction NN 40404 1667 21 of of IN 40404 1667 22 the the DT 40404 1667 23 glacier glacier NN 40404 1667 24 and and CC 40404 1667 25 some some DT 40404 1667 26 tributary tributary NN 40404 1667 27 and and CC 40404 1667 28 is be VBZ 40404 1667 29 formed form VBN 40404 1667 30 by by IN 40404 1667 31 the the DT 40404 1667 32 union union NN 40404 1667 33 of of IN 40404 1667 34 their -PRON- PRP$ 40404 1667 35 two two CD 40404 1667 36 adjacent adjacent JJ 40404 1667 37 lateral lateral JJ 40404 1667 38 moraines moraine NNS 40404 1667 39 ( ( -LRB- 40404 1667 40 Fig fig NN 40404 1667 41 . . . 40404 1668 1 102 102 CD 40404 1668 2 ) ) -RRB- 40404 1668 3 . . . 40404 1669 1 Each each DT 40404 1669 2 branch branch NN 40404 1669 3 thus thus RB 40404 1669 4 adds add VBZ 40404 1669 5 a a DT 40404 1669 6 medial medial JJ 40404 1669 7 moraine moraine NN 40404 1669 8 , , , 40404 1669 9 and and CC 40404 1669 10 by by IN 40404 1669 11 counting count VBG 40404 1669 12 the the DT 40404 1669 13 number number NN 40404 1669 14 of of IN 40404 1669 15 medial medial JJ 40404 1669 16 moraines moraine NNS 40404 1669 17 of of IN 40404 1669 18 a a DT 40404 1669 19 trunk trunk NN 40404 1669 20 stream stream NN 40404 1669 21 one one PRP 40404 1669 22 may may MD 40404 1669 23 learn learn VB 40404 1669 24 of of IN 40404 1669 25 how how WRB 40404 1669 26 many many JJ 40404 1669 27 branches branch NNS 40404 1669 28 it -PRON- PRP 40404 1669 29 is be VBZ 40404 1669 30 composed compose VBN 40404 1669 31 . . . 40404 1670 1 [ [ -LRB- 40404 1670 2 Illustration illustration NN 40404 1670 3 : : : 40404 1670 4 Fig Fig NNP 40404 1670 5 . . . 40404 1671 1 103 103 CD 40404 1671 2 . . . 40404 1672 1 Cross Cross NNP 40404 1672 2 Section Section NNP 40404 1672 3 of of IN 40404 1672 4 a a DT 40404 1672 5 Glacier Glacier NNP 40404 1672 6 showing show VBG 40404 1672 7 Lateral Lateral NNP 40404 1672 8 Moraines Moraines NNPS 40404 1672 9 _ _ NNP 40404 1672 10 l l NNP 40404 1672 11 _ _ NNP 40404 1672 12 , , , 40404 1672 13 _ _ NNP 40404 1672 14 l l NNP 40404 1672 15 _ _ NNP 40404 1672 16 , , , 40404 1672 17 and and CC 40404 1672 18 Medial Medial NNP 40404 1672 19 Moraines Moraines NNP 40404 1672 20 _ _ NNP 40404 1672 21 m m NNP 40404 1672 22 _ _ NNP 40404 1672 23 , , , 40404 1672 24 _ _ NNP 40404 1672 25 m m NNP 40404 1672 26 _ _ NNP 40404 1672 27 ] ] -RRB- 40404 1672 28 Surface Surface NNP 40404 1672 29 moraines moraine NNS 40404 1672 30 appear appear VBP 40404 1672 31 in in IN 40404 1672 32 the the DT 40404 1672 33 lower low JJR 40404 1672 34 course course NN 40404 1672 35 of of IN 40404 1672 36 the the DT 40404 1672 37 glacier glacier NN 40404 1672 38 as as IN 40404 1672 39 ridges ridge NNS 40404 1672 40 , , , 40404 1672 41 which which WDT 40404 1672 42 may may MD 40404 1672 43 reach reach VB 40404 1672 44 the the DT 40404 1672 45 exceptional exceptional JJ 40404 1672 46 height height NN 40404 1672 47 of of IN 40404 1672 48 one one CD 40404 1672 49 hundred hundred CD 40404 1672 50 feet foot NNS 40404 1672 51 . . . 40404 1673 1 The the DT 40404 1673 2 bulk bulk NN 40404 1673 3 of of IN 40404 1673 4 such such PDT 40404 1673 5 a a DT 40404 1673 6 ridge ridge NN 40404 1673 7 is be VBZ 40404 1673 8 ice ice NN 40404 1673 9 . . . 40404 1674 1 It -PRON- PRP 40404 1674 2 has have VBZ 40404 1674 3 been be VBN 40404 1674 4 protected protect VBN 40404 1674 5 from from IN 40404 1674 6 the the DT 40404 1674 7 sun sun NN 40404 1674 8 by by IN 40404 1674 9 the the DT 40404 1674 10 veneer veneer NN 40404 1674 11 of of IN 40404 1674 12 moraine moraine JJ 40404 1674 13 stuff stuff NN 40404 1674 14 ; ; : 40404 1674 15 while while IN 40404 1674 16 the the DT 40404 1674 17 glacier glacier NN 40404 1674 18 surface surface NN 40404 1674 19 on on IN 40404 1674 20 either either DT 40404 1674 21 side side NN 40404 1674 22 has have VBZ 40404 1674 23 melted melt VBN 40404 1674 24 down down RP 40404 1674 25 at at IN 40404 1674 26 least least JJS 40404 1674 27 the the DT 40404 1674 28 distance distance NN 40404 1674 29 of of IN 40404 1674 30 the the DT 40404 1674 31 height height NN 40404 1674 32 of of IN 40404 1674 33 the the DT 40404 1674 34 ridge ridge NN 40404 1674 35 . . . 40404 1675 1 In in IN 40404 1675 2 summer summer NN 40404 1675 3 the the DT 40404 1675 4 lowering lowering NN 40404 1675 5 of of IN 40404 1675 6 the the DT 40404 1675 7 glacial glacial JJ 40404 1675 8 surface surface NN 40404 1675 9 by by IN 40404 1675 10 melting melt VBG 40404 1675 11 goes go VBZ 40404 1675 12 on on RP 40404 1675 13 rapidly rapidly RB 40404 1675 14 . . . 40404 1676 1 In in IN 40404 1676 2 Swiss swiss JJ 40404 1676 3 glaciers glacier NNS 40404 1676 4 it -PRON- PRP 40404 1676 5 has have VBZ 40404 1676 6 been be VBN 40404 1676 7 estimated estimate VBN 40404 1676 8 that that IN 40404 1676 9 the the DT 40404 1676 10 average average JJ 40404 1676 11 lowering lowering NN 40404 1676 12 of of IN 40404 1676 13 the the DT 40404 1676 14 surface surface NN 40404 1676 15 by by IN 40404 1676 16 melting melting NN 40404 1676 17 and and CC 40404 1676 18 evaporation evaporation NN 40404 1676 19 amounts amount NNS 40404 1676 20 to to IN 40404 1676 21 ten ten CD 40404 1676 22 feet foot NNS 40404 1676 23 a a DT 40404 1676 24 year year NN 40404 1676 25 . . . 40404 1677 1 As as IN 40404 1677 2 a a DT 40404 1677 3 moraine moraine JJ 40404 1677 4 ridge ridge NN 40404 1677 5 grows grow VBZ 40404 1677 6 higher high JJR 40404 1677 7 and and CC 40404 1677 8 more more RBR 40404 1677 9 steep steep JJ 40404 1677 10 by by IN 40404 1677 11 the the DT 40404 1677 12 lowering lowering NN 40404 1677 13 of of IN 40404 1677 14 the the DT 40404 1677 15 surface surface NN 40404 1677 16 of of IN 40404 1677 17 the the DT 40404 1677 18 surrounding surround VBG 40404 1677 19 ice ice NN 40404 1677 20 , , , 40404 1677 21 the the DT 40404 1677 22 stones stone NNS 40404 1677 23 of of IN 40404 1677 24 its -PRON- PRP$ 40404 1677 25 cover cover NN 40404 1677 26 tend tend VBP 40404 1677 27 to to TO 40404 1677 28 slip slip VB 40404 1677 29 down down RP 40404 1677 30 its -PRON- PRP$ 40404 1677 31 sides side NNS 40404 1677 32 . . . 40404 1678 1 Thus thus RB 40404 1678 2 moraines moraine NNS 40404 1678 3 broaden broaden NN 40404 1678 4 , , , 40404 1678 5 until until IN 40404 1678 6 near near IN 40404 1678 7 the the DT 40404 1678 8 terminus terminus NN 40404 1678 9 of of IN 40404 1678 10 a a DT 40404 1678 11 glacier glacier NN 40404 1678 12 they -PRON- PRP 40404 1678 13 may may MD 40404 1678 14 coalesce coalesce VB 40404 1678 15 in in IN 40404 1678 16 a a DT 40404 1678 17 wide wide JJ 40404 1678 18 field field NN 40404 1678 19 of of IN 40404 1678 20 stony stony NN 40404 1678 21 waste waste NN 40404 1678 22 . . . 40404 1679 1 [ [ -LRB- 40404 1679 2 Illustration illustration NN 40404 1679 3 : : : 40404 1679 4 Fig Fig NNP 40404 1679 5 . . . 40404 1680 1 104 104 CD 40404 1680 2 . . . 40404 1681 1 Glacier Glacier NNP 40404 1681 2 with with IN 40404 1681 3 Medial Medial NNP 40404 1681 4 Moraines Moraines NNP 40404 1681 5 , , , 40404 1681 6 the the DT 40404 1681 7 Alps Alps NNPS 40404 1681 8 Is be VBZ 40404 1681 9 the the DT 40404 1681 10 ice ice NN 40404 1681 11 moving move VBG 40404 1681 12 from from IN 40404 1681 13 or or CC 40404 1681 14 towards towards IN 40404 1681 15 the the DT 40404 1681 16 observer observer NN 40404 1681 17 ? ? . 40404 1681 18 ] ] -RRB- 40404 1682 1 = = NFP 40404 1682 2 Englacial Englacial NNP 40404 1682 3 drift.= drift.= VBZ 40404 1682 4 This this DT 40404 1682 5 name name NN 40404 1682 6 is be VBZ 40404 1682 7 applied apply VBN 40404 1682 8 to to IN 40404 1682 9 whatever whatever WDT 40404 1682 10 debris debris NN 40404 1682 11 is be VBZ 40404 1682 12 carried carry VBN 40404 1682 13 within within IN 40404 1682 14 the the DT 40404 1682 15 glacier glacier NN 40404 1682 16 . . . 40404 1683 1 It -PRON- PRP 40404 1683 2 consists consist VBZ 40404 1683 3 of of IN 40404 1683 4 rock rock NN 40404 1683 5 waste waste NN 40404 1683 6 fallen fall VBN 40404 1683 7 on on IN 40404 1683 8 the the DT 40404 1683 9 névé névé NNS 40404 1683 10 and and CC 40404 1683 11 there there RB 40404 1683 12 buried bury VBN 40404 1683 13 by by IN 40404 1683 14 accumulations accumulation NNS 40404 1683 15 of of IN 40404 1683 16 snow snow NN 40404 1683 17 , , , 40404 1683 18 and and CC 40404 1683 19 of of IN 40404 1683 20 that that DT 40404 1683 21 engulfed engulf VBN 40404 1683 22 in in IN 40404 1683 23 the the DT 40404 1683 24 glacier glacier NN 40404 1683 25 where where WRB 40404 1683 26 crevasses crevasse NNS 40404 1683 27 have have VBP 40404 1683 28 opened open VBN 40404 1683 29 beneath beneath IN 40404 1683 30 a a DT 40404 1683 31 surface surface NN 40404 1683 32 moraine moraine NN 40404 1683 33 . . . 40404 1684 1 As as IN 40404 1684 2 the the DT 40404 1684 3 surface surface NN 40404 1684 4 of of IN 40404 1684 5 the the DT 40404 1684 6 glacier glacier NN 40404 1684 7 is be VBZ 40404 1684 8 lowered lower VBN 40404 1684 9 by by IN 40404 1684 10 melting melt VBG 40404 1684 11 , , , 40404 1684 12 more more RBR 40404 1684 13 or or CC 40404 1684 14 less less JJR 40404 1684 15 englacial englacial JJ 40404 1684 16 drift drift NN 40404 1684 17 is be VBZ 40404 1684 18 brought bring VBN 40404 1684 19 again again RB 40404 1684 20 to to TO 40404 1684 21 open open VB 40404 1684 22 air air NN 40404 1684 23 , , , 40404 1684 24 and and CC 40404 1684 25 near near IN 40404 1684 26 the the DT 40404 1684 27 terminus terminus NN 40404 1684 28 it -PRON- PRP 40404 1684 29 may may MD 40404 1684 30 help help VB 40404 1684 31 to to TO 40404 1684 32 bury bury VB 40404 1684 33 the the DT 40404 1684 34 ice ice NN 40404 1684 35 from from IN 40404 1684 36 view view NN 40404 1684 37 beneath beneath IN 40404 1684 38 a a DT 40404 1684 39 sheet sheet NN 40404 1684 40 of of IN 40404 1684 41 debris debris NN 40404 1684 42 . . . 40404 1685 1 = = NFP 40404 1685 2 The the DT 40404 1685 3 ground ground NN 40404 1685 4 moraine.= moraine.= CD 40404 1685 5 The the DT 40404 1685 6 drift drift NN 40404 1685 7 dragged drag VBD 40404 1685 8 along along RB 40404 1685 9 at at IN 40404 1685 10 the the DT 40404 1685 11 glacier glacier NN 40404 1685 12 's 's POS 40404 1685 13 base base NN 40404 1685 14 and and CC 40404 1685 15 lodged lodge VBD 40404 1685 16 beneath beneath IN 40404 1685 17 it -PRON- PRP 40404 1685 18 is be VBZ 40404 1685 19 known know VBN 40404 1685 20 as as IN 40404 1685 21 the the DT 40404 1685 22 ground ground NN 40404 1685 23 moraine moraine VBP 40404 1685 24 . . . 40404 1686 1 Part part NN 40404 1686 2 of of IN 40404 1686 3 the the DT 40404 1686 4 material material NN 40404 1686 5 of of IN 40404 1686 6 it -PRON- PRP 40404 1686 7 has have VBZ 40404 1686 8 fallen fall VBN 40404 1686 9 down down RP 40404 1686 10 deep deep JJ 40404 1686 11 crevasses crevasse NNS 40404 1686 12 and and CC 40404 1686 13 part part NN 40404 1686 14 has have VBZ 40404 1686 15 been be VBN 40404 1686 16 torn tear VBN 40404 1686 17 and and CC 40404 1686 18 worn wear VBN 40404 1686 19 from from IN 40404 1686 20 the the DT 40404 1686 21 glacier glacier NN 40404 1686 22 's 's POS 40404 1686 23 bed bed NN 40404 1686 24 and and CC 40404 1686 25 banks bank NNS 40404 1686 26 . . . 40404 1687 1 While while IN 40404 1687 2 the the DT 40404 1687 3 stones stone NNS 40404 1687 4 of of IN 40404 1687 5 the the DT 40404 1687 6 surface surface NN 40404 1687 7 moraines moraine NNS 40404 1687 8 remain remain VBP 40404 1687 9 as as RB 40404 1687 10 angular angular JJ 40404 1687 11 as as IN 40404 1687 12 when when WRB 40404 1687 13 they -PRON- PRP 40404 1687 14 lodged lodge VBD 40404 1687 15 on on IN 40404 1687 16 the the DT 40404 1687 17 ice ice NN 40404 1687 18 , , , 40404 1687 19 many many JJ 40404 1687 20 of of IN 40404 1687 21 those those DT 40404 1687 22 of of IN 40404 1687 23 the the DT 40404 1687 24 ground ground NN 40404 1687 25 moraine moraine NNP 40404 1687 26 have have VBP 40404 1687 27 been be VBN 40404 1687 28 blunted blunt VBN 40404 1687 29 on on IN 40404 1687 30 the the DT 40404 1687 31 edges edge NNS 40404 1687 32 and and CC 40404 1687 33 faceted facete VBN 40404 1687 34 and and CC 40404 1687 35 scratched scratch VBN 40404 1687 36 by by IN 40404 1687 37 being be VBG 40404 1687 38 ground ground NN 40404 1687 39 against against IN 40404 1687 40 one one CD 40404 1687 41 another another DT 40404 1687 42 and and CC 40404 1687 43 the the DT 40404 1687 44 rocky rocky JJ 40404 1687 45 bed bed NN 40404 1687 46 . . . 40404 1688 1 In in IN 40404 1688 2 glaciers glacier NNS 40404 1688 3 such such JJ 40404 1688 4 as as IN 40404 1688 5 those those DT 40404 1688 6 of of IN 40404 1688 7 Greenland Greenland NNP 40404 1688 8 , , , 40404 1688 9 whose whose WP$ 40404 1688 10 basal basal NN 40404 1688 11 layers layer NNS 40404 1688 12 are be VBP 40404 1688 13 well well RB 40404 1688 14 loaded load VBN 40404 1688 15 with with IN 40404 1688 16 drift drift NN 40404 1688 17 and and CC 40404 1688 18 whose whose WP$ 40404 1688 19 surface surface NN 40404 1688 20 layers layer NNS 40404 1688 21 are be VBP 40404 1688 22 nearly nearly RB 40404 1688 23 clean clean JJ 40404 1688 24 , , , 40404 1688 25 different different JJ 40404 1688 26 layers layer NNS 40404 1688 27 have have VBP 40404 1688 28 different different JJ 40404 1688 29 rates rate NNS 40404 1688 30 of of IN 40404 1688 31 motion motion NN 40404 1688 32 , , , 40404 1688 33 according accord VBG 40404 1688 34 to to IN 40404 1688 35 the the DT 40404 1688 36 amount amount NN 40404 1688 37 of of IN 40404 1688 38 drift drift NN 40404 1688 39 with with IN 40404 1688 40 which which WDT 40404 1688 41 they -PRON- PRP 40404 1688 42 are be VBP 40404 1688 43 clogged clog VBN 40404 1688 44 . . . 40404 1689 1 One one CD 40404 1689 2 layer layer NN 40404 1689 3 glides glide VBZ 40404 1689 4 over over IN 40404 1689 5 another another DT 40404 1689 6 , , , 40404 1689 7 and and CC 40404 1689 8 the the DT 40404 1689 9 stones stone NNS 40404 1689 10 inset inset NN 40404 1689 11 in in IN 40404 1689 12 each each DT 40404 1689 13 are be VBP 40404 1689 14 ground grind VBN 40404 1689 15 and and CC 40404 1689 16 smoothed smooth VBN 40404 1689 17 and and CC 40404 1689 18 scratched scratch VBD 40404 1689 19 . . . 40404 1690 1 Usually usually RB 40404 1690 2 the the DT 40404 1690 3 sides side NNS 40404 1690 4 of of IN 40404 1690 5 glaciated glaciate VBN 40404 1690 6 pebbles pebble NNS 40404 1690 7 are be VBP 40404 1690 8 more more RBR 40404 1690 9 worn worn JJ 40404 1690 10 than than IN 40404 1690 11 the the DT 40404 1690 12 ends end NNS 40404 1690 13 , , , 40404 1690 14 and and CC 40404 1690 15 the the DT 40404 1690 16 scratches scratch NNS 40404 1690 17 upon upon IN 40404 1690 18 them -PRON- PRP 40404 1690 19 run run VBP 40404 1690 20 with with IN 40404 1690 21 the the DT 40404 1690 22 longer long JJR 40404 1690 23 axis axis RB 40404 1690 24 of of IN 40404 1690 25 the the DT 40404 1690 26 stone stone NN 40404 1690 27 . . . 40404 1691 1 Why why WRB 40404 1691 2 ? ? . 40404 1692 1 = = NFP 40404 1692 2 The the DT 40404 1692 3 terminal terminal NN 40404 1692 4 moraine.= moraine.= NN 40404 1692 5 As as IN 40404 1692 6 a a DT 40404 1692 7 glacier glacier NN 40404 1692 8 is be VBZ 40404 1692 9 in in IN 40404 1692 10 constant constant JJ 40404 1692 11 motion motion NN 40404 1692 12 , , , 40404 1692 13 it -PRON- PRP 40404 1692 14 brings bring VBZ 40404 1692 15 to to IN 40404 1692 16 its -PRON- PRP$ 40404 1692 17 end end NN 40404 1692 18 all all DT 40404 1692 19 of of IN 40404 1692 20 its -PRON- PRP$ 40404 1692 21 load load NN 40404 1692 22 except except IN 40404 1692 23 such such JJ 40404 1692 24 parts part NNS 40404 1692 25 of of IN 40404 1692 26 the the DT 40404 1692 27 ground ground NN 40404 1692 28 moraine moraine VBP 40404 1692 29 as as IN 40404 1692 30 may may MD 40404 1692 31 find find VB 40404 1692 32 permanent permanent JJ 40404 1692 33 lodgment lodgment NN 40404 1692 34 beneath beneath IN 40404 1692 35 the the DT 40404 1692 36 ice ice NN 40404 1692 37 . . . 40404 1693 1 Where where WRB 40404 1693 2 the the DT 40404 1693 3 glacier glacier NN 40404 1693 4 front front NN 40404 1693 5 remains remain VBZ 40404 1693 6 for for IN 40404 1693 7 some some DT 40404 1693 8 time time NN 40404 1693 9 at at IN 40404 1693 10 one one CD 40404 1693 11 place place NN 40404 1693 12 , , , 40404 1693 13 there there EX 40404 1693 14 is be VBZ 40404 1693 15 formed form VBN 40404 1693 16 an an DT 40404 1693 17 accumulation accumulation NN 40404 1693 18 of of IN 40404 1693 19 drift drift NN 40404 1693 20 known know VBN 40404 1693 21 as as IN 40404 1693 22 the the DT 40404 1693 23 terminal terminal NN 40404 1693 24 moraine moraine NN 40404 1693 25 . . . 40404 1694 1 In in IN 40404 1694 2 valley valley NNP 40404 1694 3 glaciers glacier NNS 40404 1694 4 it -PRON- PRP 40404 1694 5 is be VBZ 40404 1694 6 shaped shape VBN 40404 1694 7 by by IN 40404 1694 8 the the DT 40404 1694 9 ice ice NN 40404 1694 10 front front NN 40404 1694 11 to to IN 40404 1694 12 a a DT 40404 1694 13 crescent crescent NN 40404 1694 14 whose whose WP$ 40404 1694 15 convex convex NNP 40404 1694 16 side side NN 40404 1694 17 is be VBZ 40404 1694 18 downstream downstream JJ 40404 1694 19 . . . 40404 1695 1 Some some DT 40404 1695 2 of of IN 40404 1695 3 the the DT 40404 1695 4 pebbles pebble NNS 40404 1695 5 of of IN 40404 1695 6 the the DT 40404 1695 7 terminal terminal NN 40404 1695 8 moraine moraine NN 40404 1695 9 are be VBP 40404 1695 10 angular angular JJ 40404 1695 11 , , , 40404 1695 12 and and CC 40404 1695 13 some some DT 40404 1695 14 are be VBP 40404 1695 15 faceted faceted JJ 40404 1695 16 and and CC 40404 1695 17 scored score VBN 40404 1695 18 , , , 40404 1695 19 the the DT 40404 1695 20 latter latter JJ 40404 1695 21 having have VBG 40404 1695 22 come come VBN 40404 1695 23 by by IN 40404 1695 24 the the DT 40404 1695 25 hard hard JJ 40404 1695 26 road road NN 40404 1695 27 of of IN 40404 1695 28 the the DT 40404 1695 29 ground ground NN 40404 1695 30 moraine moraine VBP 40404 1695 31 . . . 40404 1696 1 The the DT 40404 1696 2 material material NN 40404 1696 3 of of IN 40404 1696 4 the the DT 40404 1696 5 dump dump NN 40404 1696 6 is be VBZ 40404 1696 7 for for IN 40404 1696 8 the the DT 40404 1696 9 most most JJS 40404 1696 10 part part NN 40404 1696 11 unsorted unsorted JJ 40404 1696 12 , , , 40404 1696 13 though though IN 40404 1696 14 the the DT 40404 1696 15 water water NN 40404 1696 16 of of IN 40404 1696 17 the the DT 40404 1696 18 melting melt VBG 40404 1696 19 ice ice NN 40404 1696 20 may may MD 40404 1696 21 find find VB 40404 1696 22 opportunity opportunity NN 40404 1696 23 to to TO 40404 1696 24 leave leave VB 40404 1696 25 patches patch NNS 40404 1696 26 of of IN 40404 1696 27 stratified stratified JJ 40404 1696 28 sands sand NNS 40404 1696 29 and and CC 40404 1696 30 gravels gravel NNS 40404 1696 31 in in IN 40404 1696 32 the the DT 40404 1696 33 midst midst NN 40404 1696 34 of of IN 40404 1696 35 the the DT 40404 1696 36 unstratified unstratified JJ 40404 1696 37 mass mass NN 40404 1696 38 of of IN 40404 1696 39 drift drift NN 40404 1696 40 , , , 40404 1696 41 and and CC 40404 1696 42 the the DT 40404 1696 43 finer finer NNP 40404 1696 44 material material NN 40404 1696 45 is be VBZ 40404 1696 46 in in IN 40404 1696 47 places place NNS 40404 1696 48 washed wash VBN 40404 1696 49 away away RB 40404 1696 50 . . . 40404 1697 1 [ [ -LRB- 40404 1697 2 Illustration illustration NN 40404 1697 3 : : : 40404 1697 4 Fig Fig NNP 40404 1697 5 . . . 40404 1698 1 105 105 CD 40404 1698 2 . . . 40404 1699 1 Terminal Terminal NNP 40404 1699 2 Moraine Moraine NNP 40404 1699 3 of of IN 40404 1699 4 a a DT 40404 1699 5 Glacier Glacier NNP 40404 1699 6 in in IN 40404 1699 7 Montana Montana NNP 40404 1699 8 The the DT 40404 1699 9 ice ice NN 40404 1699 10 has have VBZ 40404 1699 11 melted melt VBN 40404 1699 12 back back RB 40404 1699 13 from from IN 40404 1699 14 the the DT 40404 1699 15 morainic morainic JJ 40404 1699 16 ridge ridge NN 40404 1699 17 on on IN 40404 1699 18 the the DT 40404 1699 19 left left NN 40404 1699 20 and and CC 40404 1699 21 is be VBZ 40404 1699 22 building build VBG 40404 1699 23 another another DT 40404 1699 24 on on IN 40404 1699 25 the the DT 40404 1699 26 right right NN 40404 1699 27 . . . 40404 1700 1 The the DT 40404 1700 2 hollow hollow JJ 40404 1700 3 between between IN 40404 1700 4 the the DT 40404 1700 5 ridges ridge NNS 40404 1700 6 is be VBZ 40404 1700 7 occupied occupy VBN 40404 1700 8 by by IN 40404 1700 9 a a DT 40404 1700 10 lakelet lakelet NN 40404 1700 11 . . . 40404 1700 12 ] ] -RRB- 40404 1701 1 = = NFP 40404 1701 2 Glacier Glacier NNP 40404 1701 3 drainage.= drainage.= NNP 40404 1701 4 The the DT 40404 1701 5 terminal terminal NN 40404 1701 6 moraine moraine NN 40404 1701 7 is be VBZ 40404 1701 8 commonly commonly RB 40404 1701 9 breached breach VBN 40404 1701 10 by by IN 40404 1701 11 a a DT 40404 1701 12 considerable considerable JJ 40404 1701 13 stream stream NN 40404 1701 14 , , , 40404 1701 15 which which WDT 40404 1701 16 issues issue VBZ 40404 1701 17 from from IN 40404 1701 18 beneath beneath IN 40404 1701 19 the the DT 40404 1701 20 ice ice NN 40404 1701 21 by by IN 40404 1701 22 a a DT 40404 1701 23 tunnel tunnel NN 40404 1701 24 whose whose WP$ 40404 1701 25 portal portal NN 40404 1701 26 has have VBZ 40404 1701 27 been be VBN 40404 1701 28 enlarged enlarge VBN 40404 1701 29 to to IN 40404 1701 30 a a DT 40404 1701 31 beautiful beautiful JJ 40404 1701 32 archway archway NN 40404 1701 33 by by IN 40404 1701 34 melting melt VBG 40404 1701 35 in in IN 40404 1701 36 the the DT 40404 1701 37 sun sun NN 40404 1701 38 and and CC 40404 1701 39 the the DT 40404 1701 40 warm warm JJ 40404 1701 41 air air NN 40404 1701 42 ( ( -LRB- 40404 1701 43 Fig fig NN 40404 1701 44 . . . 40404 1702 1 107 107 LS 40404 1702 2 ) ) -RRB- 40404 1702 3 . . . 40404 1703 1 The the DT 40404 1703 2 stream stream NN 40404 1703 3 is be VBZ 40404 1703 4 gray gray JJ 40404 1703 5 with with IN 40404 1703 6 silt silt NN 40404 1703 7 and and CC 40404 1703 8 loaded load VBN 40404 1703 9 with with IN 40404 1703 10 sand sand NN 40404 1703 11 and and CC 40404 1703 12 gravel gravel NN 40404 1703 13 washed wash VBD 40404 1703 14 from from IN 40404 1703 15 the the DT 40404 1703 16 ground ground NN 40404 1703 17 moraine moraine NN 40404 1703 18 . . . 40404 1704 1 " " `` 40404 1704 2 Glacier Glacier NNP 40404 1704 3 milk milk NN 40404 1704 4 " " '' 40404 1704 5 the the DT 40404 1704 6 Swiss swiss JJ 40404 1704 7 call call NN 40404 1704 8 this this DT 40404 1704 9 muddy muddy JJ 40404 1704 10 water water NN 40404 1704 11 , , , 40404 1704 12 the the DT 40404 1704 13 gray gray JJ 40404 1704 14 color color NN 40404 1704 15 of of IN 40404 1704 16 whose whose WP$ 40404 1704 17 silt silt NN 40404 1704 18 proves prove VBZ 40404 1704 19 it -PRON- PRP 40404 1704 20 rock rock NN 40404 1704 21 flour flour NN 40404 1704 22 freshly freshly RB 40404 1704 23 ground grind VBN 40404 1704 24 by by IN 40404 1704 25 the the DT 40404 1704 26 ice ice NN 40404 1704 27 from from IN 40404 1704 28 the the DT 40404 1704 29 unoxidized unoxidized JJ 40404 1704 30 sound sound JJ 40404 1704 31 rock rock NN 40404 1704 32 of of IN 40404 1704 33 its -PRON- PRP$ 40404 1704 34 bed bed NN 40404 1704 35 , , , 40404 1704 36 the the DT 40404 1704 37 mud mud NN 40404 1704 38 of of IN 40404 1704 39 streams stream NNS 40404 1704 40 being be VBG 40404 1704 41 yellowish yellowish JJ 40404 1704 42 when when WRB 40404 1704 43 it -PRON- PRP 40404 1704 44 is be VBZ 40404 1704 45 washed wash VBN 40404 1704 46 from from IN 40404 1704 47 the the DT 40404 1704 48 oxidized oxidized JJ 40404 1704 49 mantle mantle NN 40404 1704 50 of of IN 40404 1704 51 waste waste NN 40404 1704 52 . . . 40404 1705 1 Since since IN 40404 1705 2 glacial glacial JJ 40404 1705 3 streams stream NNS 40404 1705 4 are be VBP 40404 1705 5 well well RB 40404 1705 6 loaded load VBN 40404 1705 7 with with IN 40404 1705 8 waste waste NN 40404 1705 9 due due IN 40404 1705 10 to to IN 40404 1705 11 vigorous vigorous JJ 40404 1705 12 ice ice NN 40404 1705 13 erosion erosion NN 40404 1705 14 , , , 40404 1705 15 the the DT 40404 1705 16 valley valley NN 40404 1705 17 in in IN 40404 1705 18 front front NN 40404 1705 19 of of IN 40404 1705 20 the the DT 40404 1705 21 glacier glacier NN 40404 1705 22 is be VBZ 40404 1705 23 commonly commonly RB 40404 1705 24 aggraded aggrade VBN 40404 1705 25 to to IN 40404 1705 26 a a DT 40404 1705 27 broad broad JJ 40404 1705 28 , , , 40404 1705 29 flat flat JJ 40404 1705 30 floor floor NN 40404 1705 31 . . . 40404 1706 1 These these DT 40404 1706 2 outwash outwash JJ 40404 1706 3 deposits deposit NNS 40404 1706 4 are be VBP 40404 1706 5 known know VBN 40404 1706 6 as as IN 40404 1706 7 _ _ NNP 40404 1706 8 valley valley NNP 40404 1706 9 drift drift NNP 40404 1706 10 _ _ NNP 40404 1706 11 . . . 40404 1707 1 [ [ -LRB- 40404 1707 2 Illustration illustration NN 40404 1707 3 : : : 40404 1707 4 Fig Fig NNP 40404 1707 5 . . . 40404 1708 1 106 106 CD 40404 1708 2 . . . 40404 1709 1 Heavy Heavy NNP 40404 1709 2 Moraine Moraine NNP 40404 1709 3 about about IN 40404 1709 4 the the DT 40404 1709 5 Terminus Terminus NNP 40404 1709 6 of of IN 40404 1709 7 a a DT 40404 1709 8 Glacier Glacier NNP 40404 1709 9 in in IN 40404 1709 10 the the DT 40404 1709 11 Rocky Rocky NNP 40404 1709 12 Mountains Mountains NNPS 40404 1709 13 of of IN 40404 1709 14 Canada Canada NNP 40404 1709 15 Account Account NNP 40404 1709 16 for for IN 40404 1709 17 the the DT 40404 1709 18 fact fact NN 40404 1709 19 that that IN 40404 1709 20 the the DT 40404 1709 21 morainic morainic JJ 40404 1709 22 ridge ridge NN 40404 1709 23 rises rise VBZ 40404 1709 24 considerably considerably RB 40404 1709 25 above above IN 40404 1709 26 the the DT 40404 1709 27 surface surface NN 40404 1709 28 of of IN 40404 1709 29 the the DT 40404 1709 30 ice ice NN 40404 1709 31 ] ] -RRB- 40404 1709 32 The the DT 40404 1709 33 sand sand NN 40404 1709 34 brought bring VBD 40404 1709 35 out out RP 40404 1709 36 by by IN 40404 1709 37 streams stream NNS 40404 1709 38 from from IN 40404 1709 39 beneath beneath IN 40404 1709 40 a a DT 40404 1709 41 glacier glacier NN 40404 1709 42 differs differ VBZ 40404 1709 43 from from IN 40404 1709 44 river river NN 40404 1709 45 sand sand NN 40404 1709 46 in in IN 40404 1709 47 that that IN 40404 1709 48 it -PRON- PRP 40404 1709 49 consists consist VBZ 40404 1709 50 of of IN 40404 1709 51 freshly freshly RB 40404 1709 52 broken break VBN 40404 1709 53 angular angular JJ 40404 1709 54 grains grain NNS 40404 1709 55 . . . 40404 1710 1 Why why WRB 40404 1710 2 ? ? . 40404 1711 1 The the DT 40404 1711 2 stream stream NN 40404 1711 3 derives derive VBZ 40404 1711 4 its -PRON- PRP$ 40404 1711 5 water water NN 40404 1711 6 chiefly chiefly RB 40404 1711 7 from from IN 40404 1711 8 the the DT 40404 1711 9 surface surface NN 40404 1711 10 melting melt VBG 40404 1711 11 of of IN 40404 1711 12 the the DT 40404 1711 13 glacier glacier NN 40404 1711 14 . . . 40404 1712 1 As as IN 40404 1712 2 the the DT 40404 1712 3 ice ice NN 40404 1712 4 is be VBZ 40404 1712 5 touched touch VBN 40404 1712 6 by by IN 40404 1712 7 the the DT 40404 1712 8 rays ray NNS 40404 1712 9 of of IN 40404 1712 10 the the DT 40404 1712 11 morning morning NN 40404 1712 12 sun sun NN 40404 1712 13 in in IN 40404 1712 14 summer summer NN 40404 1712 15 , , , 40404 1712 16 water water NN 40404 1712 17 gathers gather NNS 40404 1712 18 in in IN 40404 1712 19 pools pool NNS 40404 1712 20 , , , 40404 1712 21 and and CC 40404 1712 22 rills rill VBZ 40404 1712 23 trickle trickle VB 40404 1712 24 and and CC 40404 1712 25 unite unite VB 40404 1712 26 in in IN 40404 1712 27 brooklets brooklet NNS 40404 1712 28 which which WDT 40404 1712 29 melt melt VBP 40404 1712 30 and and CC 40404 1712 31 cut cut VBD 40404 1712 32 shallow shallow JJ 40404 1712 33 channels channel NNS 40404 1712 34 in in IN 40404 1712 35 the the DT 40404 1712 36 blue blue JJ 40404 1712 37 ice ice NN 40404 1712 38 . . . 40404 1713 1 The the DT 40404 1713 2 course course NN 40404 1713 3 of of IN 40404 1713 4 these these DT 40404 1713 5 streams stream NNS 40404 1713 6 is be VBZ 40404 1713 7 short short JJ 40404 1713 8 . . . 40404 1714 1 Soon soon RB 40404 1714 2 they -PRON- PRP 40404 1714 3 plunge plunge VBP 40404 1714 4 into into IN 40404 1714 5 deep deep JJ 40404 1714 6 wells well NNS 40404 1714 7 cut cut VBN 40404 1714 8 by by IN 40404 1714 9 their -PRON- PRP$ 40404 1714 10 whirling whirl VBG 40404 1714 11 waters water NNS 40404 1714 12 where where WRB 40404 1714 13 some some DT 40404 1714 14 crevasse crevasse NN 40404 1714 15 has have VBZ 40404 1714 16 begun begin VBN 40404 1714 17 to to TO 40404 1714 18 open open VB 40404 1714 19 across across IN 40404 1714 20 their 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1716 4 Fig Fig NNP 40404 1716 5 . . . 40404 1717 1 107 107 CD 40404 1717 2 . . . 40404 1718 1 Subglacial subglacial JJ 40404 1718 2 Stream stream NN 40404 1718 3 Issuing issuing NN 40404 1718 4 from from IN 40404 1718 5 Tunnel Tunnel NNP 40404 1718 6 in in IN 40404 1718 7 the the DT 40404 1718 8 Ice Ice NNP 40404 1718 9 , , , 40404 1718 10 Norway Norway NNP 40404 1718 11 ] ] -RRB- 40404 1718 12 = = NFP 40404 1718 13 The the DT 40404 1718 14 lower low JJR 40404 1718 15 limit limit NN 40404 1718 16 of of IN 40404 1718 17 glaciers.= glaciers.= CD 40404 1718 18 The the DT 40404 1718 19 glaciers glacier NNS 40404 1718 20 of of IN 40404 1718 21 a a DT 40404 1718 22 region region NN 40404 1718 23 do do VBP 40404 1718 24 not not RB 40404 1718 25 by by IN 40404 1718 26 any any DT 40404 1718 27 means mean NNS 40404 1718 28 end end VB 40404 1718 29 at at IN 40404 1718 30 a a DT 40404 1718 31 uniform uniform JJ 40404 1718 32 height height NN 40404 1718 33 above above IN 40404 1718 34 sea sea NN 40404 1718 35 level level NN 40404 1718 36 . . . 40404 1719 1 Each each DT 40404 1719 2 terminates terminate NNS 40404 1719 3 where where WRB 40404 1719 4 its -PRON- PRP$ 40404 1719 5 supply supply NN 40404 1719 6 is be VBZ 40404 1719 7 balanced balance VBN 40404 1719 8 by by IN 40404 1719 9 melting melt VBG 40404 1719 10 . . . 40404 1720 1 Those those DT 40404 1720 2 therefore therefore RB 40404 1720 3 which which WDT 40404 1720 4 are be VBP 40404 1720 5 fed feed VBN 40404 1720 6 by by IN 40404 1720 7 the the DT 40404 1720 8 largest large JJS 40404 1720 9 and and CC 40404 1720 10 deepest deep JJS 40404 1720 11 névés névé NNS 40404 1720 12 and and CC 40404 1720 13 those those DT 40404 1720 14 also also RB 40404 1720 15 which which WDT 40404 1720 16 are be VBP 40404 1720 17 best well RBS 40404 1720 18 protected protect VBN 40404 1720 19 from from IN 40404 1720 20 the the DT 40404 1720 21 sun sun NN 40404 1720 22 by by IN 40404 1720 23 a a DT 40404 1720 24 northward northward JJ 40404 1720 25 exposure exposure NN 40404 1720 26 or or CC 40404 1720 27 by by IN 40404 1720 28 the the DT 40404 1720 29 depth depth NN 40404 1720 30 of of IN 40404 1720 31 their -PRON- PRP$ 40404 1720 32 inclosing inclose VBG 40404 1720 33 valleys valley NNS 40404 1720 34 flow flow VBP 40404 1720 35 to to IN 40404 1720 36 lower low JJR 40404 1720 37 levels level NNS 40404 1720 38 than than IN 40404 1720 39 those those DT 40404 1720 40 whose whose WP$ 40404 1720 41 supply supply NN 40404 1720 42 is be VBZ 40404 1720 43 less less JJR 40404 1720 44 and and CC 40404 1720 45 whose whose WP$ 40404 1720 46 exposure exposure NN 40404 1720 47 to to IN 40404 1720 48 the the DT 40404 1720 49 sun sun NN 40404 1720 50 is be VBZ 40404 1720 51 greater great JJR 40404 1720 52 . . . 40404 1721 1 A a DT 40404 1721 2 series series NN 40404 1721 3 of of IN 40404 1721 4 cold cold JJ 40404 1721 5 , , , 40404 1721 6 moist moist JJ 40404 1721 7 years year NNS 40404 1721 8 , , , 40404 1721 9 with with IN 40404 1721 10 an an DT 40404 1721 11 abundant abundant JJ 40404 1721 12 snowfall snowfall NN 40404 1721 13 , , , 40404 1721 14 causes cause VBZ 40404 1721 15 glaciers glacier NNS 40404 1721 16 to to IN 40404 1721 17 thicken thicken NN 40404 1721 18 and and CC 40404 1721 19 advance advance NN 40404 1721 20 ; ; : 40404 1721 21 a a DT 40404 1721 22 series series NN 40404 1721 23 of of IN 40404 1721 24 warm warm JJ 40404 1721 25 , , , 40404 1721 26 dry dry JJ 40404 1721 27 years year NNS 40404 1721 28 causes cause VBZ 40404 1721 29 them -PRON- PRP 40404 1721 30 to to TO 40404 1721 31 wither wither VB 40404 1721 32 and and CC 40404 1721 33 melt melt VB 40404 1721 34 back back RP 40404 1721 35 . . . 40404 1722 1 The the DT 40404 1722 2 variation variation NN 40404 1722 3 in in IN 40404 1722 4 glaciers glacier NNS 40404 1722 5 is be VBZ 40404 1722 6 now now RB 40404 1722 7 carefully carefully RB 40404 1722 8 observed observe VBN 40404 1722 9 in in IN 40404 1722 10 many many JJ 40404 1722 11 parts part NNS 40404 1722 12 of of IN 40404 1722 13 the the DT 40404 1722 14 world world NN 40404 1722 15 . . . 40404 1723 1 The the DT 40404 1723 2 Muir Muir NNP 40404 1723 3 glacier glacier NN 40404 1723 4 has have VBZ 40404 1723 5 retreated retreat VBN 40404 1723 6 two two CD 40404 1723 7 miles mile NNS 40404 1723 8 in in IN 40404 1723 9 twenty twenty CD 40404 1723 10 years year NNS 40404 1723 11 . . . 40404 1724 1 The the DT 40404 1724 2 glaciers glacier NNS 40404 1724 3 of of IN 40404 1724 4 the the DT 40404 1724 5 Swiss Swiss NNP 40404 1724 6 Alps Alps NNPS 40404 1724 7 are be VBP 40404 1724 8 now now RB 40404 1724 9 for for IN 40404 1724 10 the the DT 40404 1724 11 most most JJS 40404 1724 12 part part NN 40404 1724 13 melting melt VBG 40404 1724 14 back back RB 40404 1724 15 , , , 40404 1724 16 although although IN 40404 1724 17 a a DT 40404 1724 18 well well RB 40404 1724 19 - - HYPH 40404 1724 20 known know VBN 40404 1724 21 glacier glacier NN 40404 1724 22 of of IN 40404 1724 23 the the DT 40404 1724 24 eastern eastern JJ 40404 1724 25 Alps Alps NNP 40404 1724 26 , , , 40404 1724 27 the the DT 40404 1724 28 Vernagt Vernagt NNP 40404 1724 29 , , , 40404 1724 30 advanced advance VBD 40404 1724 31 five five CD 40404 1724 32 hundred hundred CD 40404 1724 33 feet foot NNS 40404 1724 34 in in IN 40404 1724 35 the the DT 40404 1724 36 year year NN 40404 1724 37 1900 1900 CD 40404 1724 38 , , , 40404 1724 39 and and CC 40404 1724 40 was be VBD 40404 1724 41 then then RB 40404 1724 42 plowing plow VBG 40404 1724 43 up up RP 40404 1724 44 its -PRON- PRP$ 40404 1724 45 terminal terminal JJ 40404 1724 46 moraine moraine NN 40404 1724 47 . . . 40404 1725 1 How how WRB 40404 1725 2 soon soon RB 40404 1725 3 would would MD 40404 1725 4 you -PRON- PRP 40404 1725 5 expect expect VB 40404 1725 6 a a DT 40404 1725 7 glacier glacier NN 40404 1725 8 to to TO 40404 1725 9 advance advance VB 40404 1725 10 after after IN 40404 1725 11 its -PRON- PRP$ 40404 1725 12 névé névé NNP 40404 1725 13 fields field NNS 40404 1725 14 have have VBP 40404 1725 15 been be VBN 40404 1725 16 swollen swell VBN 40404 1725 17 with with IN 40404 1725 18 unusually unusually RB 40404 1725 19 heavy heavy JJ 40404 1725 20 snows snow NNS 40404 1725 21 , , , 40404 1725 22 as as IN 40404 1725 23 compared compare VBN 40404 1725 24 with with IN 40404 1725 25 the the DT 40404 1725 26 time time NN 40404 1725 27 needed need VBN 40404 1725 28 for for IN 40404 1725 29 the the DT 40404 1725 30 flood flood NN 40404 1725 31 of of IN 40404 1725 32 a a DT 40404 1725 33 large large JJ 40404 1725 34 river river NN 40404 1725 35 to to TO 40404 1725 36 reach reach VB 40404 1725 37 its -PRON- PRP$ 40404 1725 38 mouth mouth NN 40404 1725 39 after after IN 40404 1725 40 heavy heavy JJ 40404 1725 41 rains rain NNS 40404 1725 42 upon upon IN 40404 1725 43 its -PRON- PRP$ 40404 1725 44 headwaters headwater NNS 40404 1725 45 ? ? . 40404 1726 1 [ [ -LRB- 40404 1726 2 Illustration illustration NN 40404 1726 3 : : : 40404 1726 4 Fig Fig NNP 40404 1726 5 . . . 40404 1727 1 108 108 CD 40404 1727 2 . . . 40404 1728 1 A a DT 40404 1728 2 Glacier Glacier NNP 40404 1728 3 Table table NN 40404 1728 4 ] ] -RRB- 40404 1728 5 On on IN 40404 1728 6 the the DT 40404 1728 7 surface surface NN 40404 1728 8 of of IN 40404 1728 9 glaciers glacier NNS 40404 1728 10 in in IN 40404 1728 11 summer summer NN 40404 1728 12 time time NN 40404 1728 13 one one CD 40404 1728 14 may may MD 40404 1728 15 often often RB 40404 1728 16 see see VB 40404 1728 17 large large JJ 40404 1728 18 stones stone NNS 40404 1728 19 supported support VBN 40404 1728 20 by by IN 40404 1728 21 pillars pillar NNS 40404 1728 22 of of IN 40404 1728 23 ice ice NN 40404 1728 24 several several JJ 40404 1728 25 feet foot NNS 40404 1728 26 in in IN 40404 1728 27 height height NN 40404 1728 28 ( ( -LRB- 40404 1728 29 Fig fig NN 40404 1728 30 . . . 40404 1729 1 108 108 CD 40404 1729 2 ) ) -RRB- 40404 1729 3 . . . 40404 1730 1 These these DT 40404 1730 2 " " `` 40404 1730 3 glacier glacier NN 40404 1730 4 tables table NNS 40404 1730 5 " " '' 40404 1730 6 commonly commonly RB 40404 1730 7 slope slope NN 40404 1730 8 more more RBR 40404 1730 9 or or CC 40404 1730 10 less less RBR 40404 1730 11 strongly strongly RB 40404 1730 12 to to IN 40404 1730 13 the the DT 40404 1730 14 south south NN 40404 1730 15 , , , 40404 1730 16 and and CC 40404 1730 17 thus thus RB 40404 1730 18 may may MD 40404 1730 19 be be VB 40404 1730 20 used use VBN 40404 1730 21 to to TO 40404 1730 22 indicate indicate VB 40404 1730 23 roughly roughly RB 40404 1730 24 the the DT 40404 1730 25 points point NNS 40404 1730 26 of of IN 40404 1730 27 the the DT 40404 1730 28 compass compass NN 40404 1730 29 . . . 40404 1731 1 Can Can MD 40404 1731 2 you -PRON- PRP 40404 1731 3 explain explain VB 40404 1731 4 their -PRON- PRP$ 40404 1731 5 formation formation NN 40404 1731 6 and and CC 40404 1731 7 the the DT 40404 1731 8 direction direction NN 40404 1731 9 of of IN 40404 1731 10 their -PRON- PRP$ 40404 1731 11 slope slope NN 40404 1731 12 ? ? . 40404 1732 1 On on IN 40404 1732 2 the the DT 40404 1732 3 other other JJ 40404 1732 4 hand hand NN 40404 1732 5 , , , 40404 1732 6 a a DT 40404 1732 7 small small JJ 40404 1732 8 and and CC 40404 1732 9 thin thin JJ 40404 1732 10 stone stone NN 40404 1732 11 , , , 40404 1732 12 or or CC 40404 1732 13 a a DT 40404 1732 14 patch patch NN 40404 1732 15 of of IN 40404 1732 16 dust dust NN 40404 1732 17 , , , 40404 1732 18 lying lie VBG 40404 1732 19 on on IN 40404 1732 20 the the DT 40404 1732 21 ice ice NN 40404 1732 22 , , , 40404 1732 23 tends tend VBZ 40404 1732 24 to to TO 40404 1732 25 sink sink VB 40404 1732 26 a a DT 40404 1732 27 few few JJ 40404 1732 28 inches inch NNS 40404 1732 29 into into IN 40404 1732 30 it -PRON- PRP 40404 1732 31 . . . 40404 1733 1 Why why WRB 40404 1733 2 ? ? . 40404 1734 1 In in IN 40404 1734 2 what what WDT 40404 1734 3 respects respect VBZ 40404 1734 4 is be VBZ 40404 1734 5 a a DT 40404 1734 6 valley valley NN 40404 1734 7 glacier glacier NN 40404 1734 8 like like IN 40404 1734 9 a a DT 40404 1734 10 mountain mountain NN 40404 1734 11 stream stream NN 40404 1734 12 which which WDT 40404 1734 13 flows flow VBZ 40404 1734 14 out out RP 40404 1734 15 upon upon IN 40404 1734 16 desert desert NN 40404 1734 17 plains plain NNS 40404 1734 18 ? ? . 40404 1735 1 Two two CD 40404 1735 2 confluent confluent JJ 40404 1735 3 glaciers glacier NNS 40404 1735 4 do do VBP 40404 1735 5 not not RB 40404 1735 6 mingle mingle VB 40404 1735 7 their -PRON- PRP$ 40404 1735 8 currents current NNS 40404 1735 9 as as IN 40404 1735 10 do do VBP 40404 1735 11 two two CD 40404 1735 12 confluent confluent JJ 40404 1735 13 rivers river NNS 40404 1735 14 . . . 40404 1736 1 What what WDT 40404 1736 2 characteristics characteristic NNS 40404 1736 3 of of IN 40404 1736 4 surface surface NN 40404 1736 5 moraines moraine NNS 40404 1736 6 prove prove VBP 40404 1736 7 this this DT 40404 1736 8 fact fact NN 40404 1736 9 ? ? . 40404 1737 1 What what WDT 40404 1737 2 effect effect NN 40404 1737 3 would would MD 40404 1737 4 you -PRON- PRP 40404 1737 5 expect expect VB 40404 1737 6 the the DT 40404 1737 7 laws law NNS 40404 1737 8 of of IN 40404 1737 9 glacier glacier NN 40404 1737 10 motion motion NN 40404 1737 11 to to TO 40404 1737 12 have have VB 40404 1737 13 on on IN 40404 1737 14 the the DT 40404 1737 15 slant slant NN 40404 1737 16 of of IN 40404 1737 17 the the DT 40404 1737 18 sides side NNS 40404 1737 19 of of IN 40404 1737 20 transverse transverse JJ 40404 1737 21 crevasses crevasse NNS 40404 1737 22 ? ? . 40404 1738 1 [ [ -LRB- 40404 1738 2 Illustration illustration NN 40404 1738 3 : : : 40404 1738 4 Fig Fig NNP 40404 1738 5 . . . 40404 1739 1 109 109 CD 40404 1739 2 . . . 40404 1740 1 Map Map NNP 40404 1740 2 of of IN 40404 1740 3 Malaspina Malaspina NNP 40404 1740 4 Glacier Glacier NNP 40404 1740 5 , , , 40404 1740 6 Alaska Alaska NNP 40404 1740 7 ] ] -RRB- 40404 1740 8 A a DT 40404 1740 9 trunk trunk NN 40404 1740 10 glacier glacier NN 40404 1740 11 has have VBZ 40404 1740 12 four four CD 40404 1740 13 medial medial JJ 40404 1740 14 moraines moraine NNS 40404 1740 15 . . . 40404 1741 1 Of of IN 40404 1741 2 how how WRB 40404 1741 3 many many JJ 40404 1741 4 tributaries tributary NNS 40404 1741 5 is be VBZ 40404 1741 6 it -PRON- PRP 40404 1741 7 composed compose VBN 40404 1741 8 ? ? . 40404 1742 1 Illustrate illustrate NN 40404 1742 2 by by IN 40404 1742 3 diagram diagram NN 40404 1742 4 . . . 40404 1743 1 State state NN 40404 1743 2 all all PDT 40404 1743 3 the the DT 40404 1743 4 evidences evidence NNS 40404 1743 5 which which WDT 40404 1743 6 you -PRON- PRP 40404 1743 7 have have VBP 40404 1743 8 found find VBN 40404 1743 9 that that IN 40404 1743 10 glaciers glacier NNS 40404 1743 11 move move VBP 40404 1743 12 . . . 40404 1744 1 If if IN 40404 1744 2 a a DT 40404 1744 3 glacier glacier NN 40404 1744 4 melts melt NNS 40404 1744 5 back back RB 40404 1744 6 with with IN 40404 1744 7 occasional occasional JJ 40404 1744 8 pauses pause NNS 40404 1744 9 up up RP 40404 1744 10 a a DT 40404 1744 11 valley valley NN 40404 1744 12 , , , 40404 1744 13 what what WDT 40404 1744 14 records record NNS 40404 1744 15 are be VBP 40404 1744 16 left leave VBN 40404 1744 17 of of IN 40404 1744 18 its -PRON- PRP$ 40404 1744 19 retreat retreat NN 40404 1744 20 ? ? . 40404 1745 1 [ [ -LRB- 40404 1745 2 Illustration illustration NN 40404 1745 3 : : : 40404 1745 4 Fig Fig NNP 40404 1745 5 . . . 40404 1746 1 110 110 CD 40404 1746 2 . . . 40404 1747 1 Outwash Outwash NNP 40404 1747 2 Plain Plain NNP 40404 1747 3 , , , 40404 1747 4 the the DT 40404 1747 5 Delta Delta NNP 40404 1747 6 of of IN 40404 1747 7 the the DT 40404 1747 8 Yahtse Yahtse NNP 40404 1747 9 River River NNP 40404 1747 10 , , , 40404 1747 11 Alaska Alaska NNP 40404 1747 12 ] ] -RRB- 40404 1747 13 Piedmont Piedmont NNP 40404 1747 14 Glaciers Glaciers NNPS 40404 1747 15 = = NFP 40404 1747 16 The the DT 40404 1747 17 Malaspina Malaspina NNP 40404 1747 18 glacier.= glacier.= NN 40404 1747 19 Piedmont Piedmont NNP 40404 1747 20 ( ( -LRB- 40404 1747 21 foot foot NN 40404 1747 22 of of IN 40404 1747 23 the the DT 40404 1747 24 mountain mountain NN 40404 1747 25 ) ) -RRB- 40404 1747 26 glaciers glacier NNS 40404 1747 27 are be VBP 40404 1747 28 , , , 40404 1747 29 as as IN 40404 1747 30 the the DT 40404 1747 31 name name NN 40404 1747 32 implies imply VBZ 40404 1747 33 , , , 40404 1747 34 ice ice NN 40404 1747 35 fields field NNS 40404 1747 36 formed form VBN 40404 1747 37 at at IN 40404 1747 38 the the DT 40404 1747 39 foot foot NN 40404 1747 40 of of IN 40404 1747 41 mountains mountain NNS 40404 1747 42 by by IN 40404 1747 43 the the DT 40404 1747 44 confluence confluence NN 40404 1747 45 of of IN 40404 1747 46 valley valley NNP 40404 1747 47 glaciers glacier NNS 40404 1747 48 . . . 40404 1748 1 The the DT 40404 1748 2 Malaspina Malaspina NNP 40404 1748 3 glacier glacier NN 40404 1748 4 of of IN 40404 1748 5 Alaska Alaska NNP 40404 1748 6 , , , 40404 1748 7 the the DT 40404 1748 8 typical typical JJ 40404 1748 9 glacier glacier NN 40404 1748 10 of of IN 40404 1748 11 this this DT 40404 1748 12 kind kind NN 40404 1748 13 , , , 40404 1748 14 is be VBZ 40404 1748 15 seventy seventy CD 40404 1748 16 miles mile NNS 40404 1748 17 wide wide JJ 40404 1748 18 and and CC 40404 1748 19 stretches stretch VBZ 40404 1748 20 for for IN 40404 1748 21 thirty thirty CD 40404 1748 22 miles mile NNS 40404 1748 23 from from IN 40404 1748 24 the the DT 40404 1748 25 foot foot NN 40404 1748 26 of of IN 40404 1748 27 the the DT 40404 1748 28 Mount Mount NNP 40404 1748 29 Saint Saint NNP 40404 1748 30 Elias elias PRP 40404 1748 31 range range VBP 40404 1748 32 to to IN 40404 1748 33 the the DT 40404 1748 34 shore shore NN 40404 1748 35 of of IN 40404 1748 36 the the DT 40404 1748 37 Pacific Pacific NNP 40404 1748 38 Ocean Ocean NNP 40404 1748 39 . . . 40404 1749 1 The the DT 40404 1749 2 valley valley NN 40404 1749 3 glaciers glacier NNS 40404 1749 4 which which WDT 40404 1749 5 unite unite VBP 40404 1749 6 and and CC 40404 1749 7 spread spread VBP 40404 1749 8 to to TO 40404 1749 9 form form VB 40404 1749 10 this this DT 40404 1749 11 lake lake NN 40404 1749 12 of of IN 40404 1749 13 ice ice NN 40404 1749 14 lie lie NN 40404 1749 15 above above IN 40404 1749 16 the the DT 40404 1749 17 snow snow NN 40404 1749 18 line line NN 40404 1749 19 and and CC 40404 1749 20 their -PRON- PRP$ 40404 1749 21 moraines moraine NNS 40404 1749 22 are be VBP 40404 1749 23 concealed conceal VBN 40404 1749 24 beneath beneath IN 40404 1749 25 névé névé NNS 40404 1749 26 . . . 40404 1750 1 The the DT 40404 1750 2 central central JJ 40404 1750 3 area area NN 40404 1750 4 of of IN 40404 1750 5 the the DT 40404 1750 6 Malaspina Malaspina NNP 40404 1750 7 is be VBZ 40404 1750 8 also also RB 40404 1750 9 free free JJ 40404 1750 10 from from IN 40404 1750 11 debris debris NN 40404 1750 12 ; ; : 40404 1750 13 but but CC 40404 1750 14 on on IN 40404 1750 15 the the DT 40404 1750 16 outer outer JJ 40404 1750 17 edge edge NN 40404 1750 18 large large JJ 40404 1750 19 quantities quantity NNS 40404 1750 20 of of IN 40404 1750 21 englacial englacial JJ 40404 1750 22 drift drift NN 40404 1750 23 are be VBP 40404 1750 24 exposed expose VBN 40404 1750 25 by by IN 40404 1750 26 surface surface NN 40404 1750 27 melting melting NN 40404 1750 28 and and CC 40404 1750 29 form form VBP 40404 1750 30 a a DT 40404 1750 31 belt belt NN 40404 1750 32 of of IN 40404 1750 33 morainic morainic JJ 40404 1750 34 waste waste NN 40404 1750 35 a a DT 40404 1750 36 few few JJ 40404 1750 37 feet foot NNS 40404 1750 38 thick thick JJ 40404 1750 39 and and CC 40404 1750 40 several several JJ 40404 1750 41 miles mile NNS 40404 1750 42 wide wide JJ 40404 1750 43 , , , 40404 1750 44 covered cover VBN 40404 1750 45 in in IN 40404 1750 46 part part NN 40404 1750 47 with with IN 40404 1750 48 a a DT 40404 1750 49 luxuriant luxuriant JJ 40404 1750 50 forest forest NN 40404 1750 51 , , , 40404 1750 52 beneath beneath IN 40404 1750 53 which which WDT 40404 1750 54 the the DT 40404 1750 55 ice ice NN 40404 1750 56 is be VBZ 40404 1750 57 in in IN 40404 1750 58 places place NNS 40404 1750 59 one one CD 40404 1750 60 thousand thousand CD 40404 1750 61 feet foot NNS 40404 1750 62 in in IN 40404 1750 63 depth depth NN 40404 1750 64 . . . 40404 1751 1 The the DT 40404 1751 2 glacier glacier NN 40404 1751 3 here here RB 40404 1751 4 is be VBZ 40404 1751 5 practically practically RB 40404 1751 6 stagnant stagnant JJ 40404 1751 7 , , , 40404 1751 8 and and CC 40404 1751 9 lakes lake VBZ 40404 1751 10 a a DT 40404 1751 11 few few JJ 40404 1751 12 hundred hundred CD 40404 1751 13 yards yard NNS 40404 1751 14 across across RB 40404 1751 15 , , , 40404 1751 16 which which WDT 40404 1751 17 could could MD 40404 1751 18 not not RB 40404 1751 19 exist exist VB 40404 1751 20 were be VBD 40404 1751 21 the the DT 40404 1751 22 ice ice NN 40404 1751 23 in in IN 40404 1751 24 motion motion NN 40404 1751 25 and and CC 40404 1751 26 broken break VBN 40404 1751 27 with with IN 40404 1751 28 crevasses crevasse NNS 40404 1751 29 , , , 40404 1751 30 gather gather VB 40404 1751 31 on on IN 40404 1751 32 their -PRON- PRP$ 40404 1751 33 beds bed NNS 40404 1751 34 sorted sort VBD 40404 1751 35 waste waste NN 40404 1751 36 from from IN 40404 1751 37 the the DT 40404 1751 38 moraine moraine NN 40404 1751 39 . . . 40404 1752 1 The the DT 40404 1752 2 streams stream NNS 40404 1752 3 which which WDT 40404 1752 4 drain drain VBP 40404 1752 5 the the DT 40404 1752 6 glacier glacier NN 40404 1752 7 have have VBP 40404 1752 8 cut cut VBN 40404 1752 9 their -PRON- PRP$ 40404 1752 10 courses course NNS 40404 1752 11 in in IN 40404 1752 12 englacial englacial JJ 40404 1752 13 and and CC 40404 1752 14 subglacial subglacial JJ 40404 1752 15 tunnels tunnel NNS 40404 1752 16 ; ; : 40404 1752 17 none none NN 40404 1752 18 flow flow NN 40404 1752 19 for for IN 40404 1752 20 any any DT 40404 1752 21 distance distance NN 40404 1752 22 on on IN 40404 1752 23 the the DT 40404 1752 24 surface surface NN 40404 1752 25 . . . 40404 1753 1 The the DT 40404 1753 2 largest large JJS 40404 1753 3 , , , 40404 1753 4 the the DT 40404 1753 5 Yahtse Yahtse NNP 40404 1753 6 River River NNP 40404 1753 7 , , , 40404 1753 8 issues issue VBZ 40404 1753 9 from from IN 40404 1753 10 a a DT 40404 1753 11 high high JJ 40404 1753 12 archway archway NN 40404 1753 13 in in IN 40404 1753 14 the the DT 40404 1753 15 ice,--a ice,--a NNP 40404 1753 16 muddy muddy NNP 40404 1753 17 torrent torrent NN 40404 1753 18 one one CD 40404 1753 19 hundred hundred CD 40404 1753 20 feet foot NNS 40404 1753 21 wide wide JJ 40404 1753 22 and and CC 40404 1753 23 twenty twenty CD 40404 1753 24 feet foot NNS 40404 1753 25 deep deep JJ 40404 1753 26 , , , 40404 1753 27 loaded load VBN 40404 1753 28 with with IN 40404 1753 29 sand sand NN 40404 1753 30 and and CC 40404 1753 31 stones stone NNS 40404 1753 32 which which WDT 40404 1753 33 it -PRON- PRP 40404 1753 34 deposits deposit VBZ 40404 1753 35 in in IN 40404 1753 36 a a DT 40404 1753 37 broad broad JJ 40404 1753 38 outwash outwash JJ 40404 1753 39 plain plain NN 40404 1753 40 ( ( -LRB- 40404 1753 41 Fig fig NN 40404 1753 42 . . . 40404 1754 1 110 110 CD 40404 1754 2 ) ) -RRB- 40404 1754 3 . . . 40404 1755 1 Where where WRB 40404 1755 2 the the DT 40404 1755 3 ice ice NN 40404 1755 4 has have VBZ 40404 1755 5 retreated retreat VBN 40404 1755 6 from from IN 40404 1755 7 the the DT 40404 1755 8 sea sea NN 40404 1755 9 there there EX 40404 1755 10 is be VBZ 40404 1755 11 left leave VBN 40404 1755 12 a a DT 40404 1755 13 hummocky hummocky JJ 40404 1755 14 drift drift NN 40404 1755 15 sheet sheet NN 40404 1755 16 with with IN 40404 1755 17 hollows hollow NNS 40404 1755 18 filled fill VBN 40404 1755 19 with with IN 40404 1755 20 lakelets lakelet NNS 40404 1755 21 . . . 40404 1756 1 These these DT 40404 1756 2 deposits deposit NNS 40404 1756 3 help help VBP 40404 1756 4 to to TO 40404 1756 5 explain explain VB 40404 1756 6 similar similar JJ 40404 1756 7 hummocky hummocky JJ 40404 1756 8 regions region NNS 40404 1756 9 of of IN 40404 1756 10 drift drift NN 40404 1756 11 and and CC 40404 1756 12 similar similar JJ 40404 1756 13 plains plain NNS 40404 1756 14 of of IN 40404 1756 15 coarse coarse JJ 40404 1756 16 , , , 40404 1756 17 water water NN 40404 1756 18 - - HYPH 40404 1756 19 laid lay VBN 40404 1756 20 material material NN 40404 1756 21 often often RB 40404 1756 22 found find VBN 40404 1756 23 in in IN 40404 1756 24 the the DT 40404 1756 25 drift drift NN 40404 1756 26 - - HYPH 40404 1756 27 covered cover VBN 40404 1756 28 area area NN 40404 1756 29 of of IN 40404 1756 30 the the DT 40404 1756 31 northeastern northeastern JJ 40404 1756 32 United United NNP 40404 1756 33 States States NNP 40404 1756 34 . . . 40404 1757 1 The the DT 40404 1757 2 Geological Geological NNP 40404 1757 3 Work Work NNP 40404 1757 4 Of of IN 40404 1757 5 Glacier Glacier NNP 40404 1757 6 Ice Ice NNP 40404 1757 7 The the DT 40404 1757 8 sluggish sluggish JJ 40404 1757 9 glacier glacier NN 40404 1757 10 must must MD 40404 1757 11 do do VB 40404 1757 12 its -PRON- PRP$ 40404 1757 13 work work NN 40404 1757 14 in in IN 40404 1757 15 a a DT 40404 1757 16 different different JJ 40404 1757 17 way way NN 40404 1757 18 from from IN 40404 1757 19 the the DT 40404 1757 20 agile agile JJ 40404 1757 21 river river NN 40404 1757 22 . . . 40404 1758 1 The the DT 40404 1758 2 mountain mountain NN 40404 1758 3 stream stream NN 40404 1758 4 is be VBZ 40404 1758 5 swift swift JJ 40404 1758 6 and and CC 40404 1758 7 small small JJ 40404 1758 8 , , , 40404 1758 9 and and CC 40404 1758 10 its -PRON- PRP$ 40404 1758 11 channel channel NN 40404 1758 12 occupies occupie NNS 40404 1758 13 but but CC 40404 1758 14 a a DT 40404 1758 15 small small JJ 40404 1758 16 portion portion NN 40404 1758 17 of of IN 40404 1758 18 the the DT 40404 1758 19 valley valley NN 40404 1758 20 . . . 40404 1759 1 The the DT 40404 1759 2 glacier glacier NN 40404 1759 3 is be VBZ 40404 1759 4 slow slow JJ 40404 1759 5 and and CC 40404 1759 6 big big JJ 40404 1759 7 ; ; : 40404 1759 8 its -PRON- PRP$ 40404 1759 9 rate rate NN 40404 1759 10 of of IN 40404 1759 11 motion motion NN 40404 1759 12 may may MD 40404 1759 13 be be VB 40404 1759 14 less less JJR 40404 1759 15 than than IN 40404 1759 16 a a DT 40404 1759 17 millionth millionth NN 40404 1759 18 of of IN 40404 1759 19 that that DT 40404 1759 20 of of IN 40404 1759 21 running run VBG 40404 1759 22 water water NN 40404 1759 23 over over IN 40404 1759 24 the the DT 40404 1759 25 same same JJ 40404 1759 26 declivity declivity NN 40404 1759 27 , , , 40404 1759 28 and and CC 40404 1759 29 its -PRON- PRP$ 40404 1759 30 bulk bulk NN 40404 1759 31 is be VBZ 40404 1759 32 proportionately proportionately RB 40404 1759 33 large large JJ 40404 1759 34 and and CC 40404 1759 35 fills fill VBZ 40404 1759 36 the the DT 40404 1759 37 valley valley NN 40404 1759 38 to to IN 40404 1759 39 great great JJ 40404 1759 40 depth depth NN 40404 1759 41 . . . 40404 1760 1 Moreover moreover RB 40404 1760 2 , , , 40404 1760 3 glacier glacier NN 40404 1760 4 ice ice NN 40404 1760 5 is be VBZ 40404 1760 6 a a DT 40404 1760 7 solid solid JJ 40404 1760 8 body body NN 40404 1760 9 plastic plastic NN 40404 1760 10 under under IN 40404 1760 11 slowly slowly RB 40404 1760 12 applied apply VBN 40404 1760 13 stresses stress NNS 40404 1760 14 , , , 40404 1760 15 while while IN 40404 1760 16 the the DT 40404 1760 17 water water NN 40404 1760 18 of of IN 40404 1760 19 rivers river NNS 40404 1760 20 is be VBZ 40404 1760 21 a a DT 40404 1760 22 nimble nimble JJ 40404 1760 23 fluid fluid NN 40404 1760 24 . . . 40404 1761 1 = = NFP 40404 1761 2 Transportation.= Transportation.= NNP 40404 1761 3 Valley Valley NNP 40404 1761 4 glaciers glacier NNS 40404 1761 5 differ differ VBP 40404 1761 6 from from IN 40404 1761 7 rivers river NNS 40404 1761 8 as as IN 40404 1761 9 carriers carrier NNS 40404 1761 10 in in IN 40404 1761 11 that that IN 40404 1761 12 they -PRON- PRP 40404 1761 13 float float VBP 40404 1761 14 the the DT 40404 1761 15 major major JJ 40404 1761 16 part part NN 40404 1761 17 of of IN 40404 1761 18 their -PRON- PRP$ 40404 1761 19 load load NN 40404 1761 20 upon upon IN 40404 1761 21 their -PRON- PRP$ 40404 1761 22 surface surface NN 40404 1761 23 , , , 40404 1761 24 transporting transport VBG 40404 1761 25 the the DT 40404 1761 26 heaviest heavy JJS 40404 1761 27 bowlder bowlder NN 40404 1761 28 as as RB 40404 1761 29 easily easily RB 40404 1761 30 as as IN 40404 1761 31 a a DT 40404 1761 32 grain grain NN 40404 1761 33 of of IN 40404 1761 34 sand sand NN 40404 1761 35 ; ; : 40404 1761 36 while while IN 40404 1761 37 streams stream NNS 40404 1761 38 push push VBP 40404 1761 39 and and CC 40404 1761 40 roll roll VBP 40404 1761 41 much much JJ 40404 1761 42 of of IN 40404 1761 43 their -PRON- PRP$ 40404 1761 44 load load NN 40404 1761 45 along along IN 40404 1761 46 their -PRON- PRP$ 40404 1761 47 beds bed NNS 40404 1761 48 , , , 40404 1761 49 and and CC 40404 1761 50 their -PRON- PRP$ 40404 1761 51 power power NN 40404 1761 52 of of IN 40404 1761 53 transporting transport VBG 40404 1761 54 waste waste NN 40404 1761 55 depends depend VBZ 40404 1761 56 solely solely RB 40404 1761 57 upon upon IN 40404 1761 58 their -PRON- PRP$ 40404 1761 59 velocity velocity NN 40404 1761 60 . . . 40404 1762 1 The the DT 40404 1762 2 amount amount NN 40404 1762 3 of of IN 40404 1762 4 the the DT 40404 1762 5 surface surface NN 40404 1762 6 load load NN 40404 1762 7 of of IN 40404 1762 8 glaciers glacier NNS 40404 1762 9 is be VBZ 40404 1762 10 limited limit VBN 40404 1762 11 only only RB 40404 1762 12 by by IN 40404 1762 13 the the DT 40404 1762 14 amount amount NN 40404 1762 15 of of IN 40404 1762 16 waste waste NN 40404 1762 17 received receive VBN 40404 1762 18 from from IN 40404 1762 19 the the DT 40404 1762 20 mountain mountain NN 40404 1762 21 slopes slope NNS 40404 1762 22 above above IN 40404 1762 23 them -PRON- PRP 40404 1762 24 . . . 40404 1763 1 The the DT 40404 1763 2 moving moving JJ 40404 1763 3 floor floor NN 40404 1763 4 of of IN 40404 1763 5 ice ice NN 40404 1763 6 stretched stretch VBD 40404 1763 7 high high RB 40404 1763 8 across across IN 40404 1763 9 a a DT 40404 1763 10 valley valley NN 40404 1763 11 sweeps sweep VBZ 40404 1763 12 along along RB 40404 1763 13 as as IN 40404 1763 14 lateral lateral JJ 40404 1763 15 moraines moraine NNS 40404 1763 16 much much JJ 40404 1763 17 of of IN 40404 1763 18 the the DT 40404 1763 19 waste waste NN 40404 1763 20 which which WDT 40404 1763 21 a a DT 40404 1763 22 mountain mountain NN 40404 1763 23 stream stream NN 40404 1763 24 would would MD 40404 1763 25 let let VB 40404 1763 26 accumulate accumulate VB 40404 1763 27 in in IN 40404 1763 28 talus talus NN 40404 1763 29 and and CC 40404 1763 30 alluvial alluvial JJ 40404 1763 31 cones cone NNS 40404 1763 32 . . . 40404 1764 1 While while IN 40404 1764 2 a a DT 40404 1764 3 valley valley NN 40404 1764 4 glacier glacier NN 40404 1764 5 carries carry VBZ 40404 1764 6 much much JJ 40404 1764 7 of of IN 40404 1764 8 its -PRON- PRP$ 40404 1764 9 load load NN 40404 1764 10 on on IN 40404 1764 11 top top NN 40404 1764 12 , , , 40404 1764 13 an an DT 40404 1764 14 ice ice NN 40404 1764 15 sheet sheet NN 40404 1764 16 , , , 40404 1764 17 such such JJ 40404 1764 18 as as IN 40404 1764 19 that that DT 40404 1764 20 of of IN 40404 1764 21 Greenland Greenland NNP 40404 1764 22 , , , 40404 1764 23 is be VBZ 40404 1764 24 free free JJ 40404 1764 25 from from IN 40404 1764 26 surface surface NN 40404 1764 27 debris debris NN 40404 1764 28 , , , 40404 1764 29 except except IN 40404 1764 30 where where WRB 40404 1764 31 moraines moraine NNS 40404 1764 32 trail trail VBP 40404 1764 33 away away RB 40404 1764 34 from from IN 40404 1764 35 some some DT 40404 1764 36 nunatak nunatak NN 40404 1764 37 . . . 40404 1765 1 If if IN 40404 1765 2 at at IN 40404 1765 3 its -PRON- PRP$ 40404 1765 4 edge edge NN 40404 1765 5 it -PRON- PRP 40404 1765 6 breaks break VBZ 40404 1765 7 into into IN 40404 1765 8 separate separate JJ 40404 1765 9 glaciers glacier NNS 40404 1765 10 which which WDT 40404 1765 11 drain drain VBP 40404 1765 12 down down RP 40404 1765 13 mountain mountain NN 40404 1765 14 valleys valley NNS 40404 1765 15 , , , 40404 1765 16 these these DT 40404 1765 17 tongues tongue NNS 40404 1765 18 of of IN 40404 1765 19 ice ice NN 40404 1765 20 will will MD 40404 1765 21 carry carry VB 40404 1765 22 the the DT 40404 1765 23 selvages selvage NNS 40404 1765 24 of of IN 40404 1765 25 waste waste NN 40404 1765 26 common common JJ 40404 1765 27 to to IN 40404 1765 28 valley valley NNP 40404 1765 29 glaciers glacier NNS 40404 1765 30 . . . 40404 1766 1 Both both DT 40404 1766 2 ice ice NN 40404 1766 3 sheets sheet NNS 40404 1766 4 and and CC 40404 1766 5 valley valley NN 40404 1766 6 glaciers glacier NNS 40404 1766 7 drag drag VBP 40404 1766 8 on on IN 40404 1766 9 large large JJ 40404 1766 10 quantities quantity NNS 40404 1766 11 of of IN 40404 1766 12 rock rock NN 40404 1766 13 waste waste NN 40404 1766 14 in in IN 40404 1766 15 their -PRON- PRP$ 40404 1766 16 ground ground NN 40404 1766 17 moraines moraine NNS 40404 1766 18 . . . 40404 1767 1 Stones stone NNS 40404 1767 2 transported transport VBN 40404 1767 3 by by IN 40404 1767 4 glaciers glacier NNS 40404 1767 5 are be VBP 40404 1767 6 sometimes sometimes RB 40404 1767 7 called call VBN 40404 1767 8 erratics erratic NNS 40404 1767 9 . . . 40404 1768 1 Such such JJ 40404 1768 2 are be VBP 40404 1768 3 the the DT 40404 1768 4 bowlders bowlder NNS 40404 1768 5 of of IN 40404 1768 6 the the DT 40404 1768 7 drift drift NN 40404 1768 8 of of IN 40404 1768 9 our -PRON- PRP$ 40404 1768 10 northern northern JJ 40404 1768 11 states state NNS 40404 1768 12 . . . 40404 1769 1 Erratics erratic NNS 40404 1769 2 may may MD 40404 1769 3 be be VB 40404 1769 4 set set VBN 40404 1769 5 down down RP 40404 1769 6 in in IN 40404 1769 7 an an DT 40404 1769 8 insecure insecure JJ 40404 1769 9 position position NN 40404 1769 10 on on IN 40404 1769 11 the the DT 40404 1769 12 melting melting NN 40404 1769 13 of of IN 40404 1769 14 the the DT 40404 1769 15 ice ice NN 40404 1769 16 . . . 40404 1770 1 = = NFP 40404 1770 2 Deposit.= Deposit.= NNP 40404 1770 3 Little little RB 40404 1770 4 need need VB 40404 1770 5 be be VB 40404 1770 6 added add VBN 40404 1770 7 here here RB 40404 1770 8 to to IN 40404 1770 9 what what WP 40404 1770 10 has have VBZ 40404 1770 11 already already RB 40404 1770 12 been be VBN 40404 1770 13 said say VBN 40404 1770 14 of of IN 40404 1770 15 ground ground NN 40404 1770 16 and and CC 40404 1770 17 terminal terminal JJ 40404 1770 18 moraines moraine NNS 40404 1770 19 . . . 40404 1771 1 All all DT 40404 1771 2 strictly strictly RB 40404 1771 3 glacial glacial JJ 40404 1771 4 deposits deposit NNS 40404 1771 5 are be VBP 40404 1771 6 unstratified unstratified JJ 40404 1771 7 . . . 40404 1772 1 The the DT 40404 1772 2 load load NN 40404 1772 3 laid lay VBD 40404 1772 4 down down RP 40404 1772 5 at at IN 40404 1772 6 the the DT 40404 1772 7 end end NN 40404 1772 8 of of IN 40404 1772 9 a a DT 40404 1772 10 glacier glacier NN 40404 1772 11 in in IN 40404 1772 12 the the DT 40404 1772 13 terminal terminal JJ 40404 1772 14 moraine moraine NN 40404 1772 15 is be VBZ 40404 1772 16 loose loose JJ 40404 1772 17 in in IN 40404 1772 18 texture texture NN 40404 1772 19 , , , 40404 1772 20 while while IN 40404 1772 21 the the DT 40404 1772 22 drift drift NN 40404 1772 23 lodged lodge VBD 40404 1772 24 beneath beneath IN 40404 1772 25 the the DT 40404 1772 26 glacier glacier NN 40404 1772 27 as as IN 40404 1772 28 ground ground NN 40404 1772 29 moraine moraine NNP 40404 1772 30 is be VBZ 40404 1772 31 often often RB 40404 1772 32 an an DT 40404 1772 33 extremely extremely RB 40404 1772 34 dense dense JJ 40404 1772 35 , , , 40404 1772 36 stony stony NNP 40404 1772 37 clay clay NN 40404 1772 38 , , , 40404 1772 39 having have VBG 40404 1772 40 been be VBN 40404 1772 41 compacted compact VBN 40404 1772 42 under under IN 40404 1772 43 the the DT 40404 1772 44 pressure pressure NN 40404 1772 45 of of IN 40404 1772 46 the the DT 40404 1772 47 overriding overriding JJ 40404 1772 48 ice ice NN 40404 1772 49 . . . 40404 1773 1 = = NFP 40404 1773 2 Erosion.= Erosion.= NNP 40404 1773 3 A a DT 40404 1773 4 glacier glacier NN 40404 1773 5 erodes erode VBZ 40404 1773 6 its -PRON- PRP$ 40404 1773 7 bed bed NN 40404 1773 8 and and CC 40404 1773 9 banks bank NNS 40404 1773 10 in in IN 40404 1773 11 two two CD 40404 1773 12 ways,--by ways,--by JJ 40404 1773 13 abrasion abrasion NN 40404 1773 14 and and CC 40404 1773 15 by by IN 40404 1773 16 plucking pluck VBG 40404 1773 17 . . . 40404 1774 1 The the DT 40404 1774 2 rock rock NN 40404 1774 3 bed bed NN 40404 1774 4 over over IN 40404 1774 5 which which WDT 40404 1774 6 a a DT 40404 1774 7 glacier glacier NN 40404 1774 8 has have VBZ 40404 1774 9 moved move VBN 40404 1774 10 is be VBZ 40404 1774 11 seen see VBN 40404 1774 12 in in IN 40404 1774 13 places place NNS 40404 1774 14 to to TO 40404 1774 15 have have VB 40404 1774 16 been be VBN 40404 1774 17 abraded abrade VBN 40404 1774 18 , , , 40404 1774 19 or or CC 40404 1774 20 ground grind VBN 40404 1774 21 away away RB 40404 1774 22 , , , 40404 1774 23 to to TO 40404 1774 24 smooth smooth VB 40404 1774 25 surfaces surface NNS 40404 1774 26 which which WDT 40404 1774 27 are be VBP 40404 1774 28 marked mark VBN 40404 1774 29 by by IN 40404 1774 30 long long JJ 40404 1774 31 , , , 40404 1774 32 straight straight JJ 40404 1774 33 , , , 40404 1774 34 parallel parallel JJ 40404 1774 35 scorings scoring NNS 40404 1774 36 aligned align VBN 40404 1774 37 with with IN 40404 1774 38 the the DT 40404 1774 39 line line NN 40404 1774 40 of of IN 40404 1774 41 movement movement NN 40404 1774 42 of of IN 40404 1774 43 the the DT 40404 1774 44 ice ice NN 40404 1774 45 and and CC 40404 1774 46 varying varying NN 40404 1774 47 in in IN 40404 1774 48 size size NN 40404 1774 49 from from IN 40404 1774 50 hair hair NN 40404 1774 51 lines line NNS 40404 1774 52 and and CC 40404 1774 53 coarse coarse JJ 40404 1774 54 scratches scratch NNS 40404 1774 55 to to IN 40404 1774 56 exceptional exceptional JJ 40404 1774 57 furrows furrow NNS 40404 1774 58 several several JJ 40404 1774 59 feet foot NNS 40404 1774 60 deep deep JJ 40404 1774 61 . . . 40404 1775 1 Clearly clearly RB 40404 1775 2 this this DT 40404 1775 3 work work NN 40404 1775 4 has have VBZ 40404 1775 5 been be VBN 40404 1775 6 accomplished accomplish VBN 40404 1775 7 by by IN 40404 1775 8 means mean NNS 40404 1775 9 of of IN 40404 1775 10 the the DT 40404 1775 11 sharp sharp JJ 40404 1775 12 sand sand NN 40404 1775 13 , , , 40404 1775 14 the the DT 40404 1775 15 pebbles pebble NNS 40404 1775 16 , , , 40404 1775 17 and and CC 40404 1775 18 the the DT 40404 1775 19 larger large JJR 40404 1775 20 stones stone NNS 40404 1775 21 with with IN 40404 1775 22 which which WDT 40404 1775 23 the the DT 40404 1775 24 base base NN 40404 1775 25 of of IN 40404 1775 26 the the DT 40404 1775 27 glacier glacier NN 40404 1775 28 is be VBZ 40404 1775 29 inset inset NN 40404 1775 30 , , , 40404 1775 31 and and CC 40404 1775 32 which which WDT 40404 1775 33 it -PRON- PRP 40404 1775 34 holds hold VBZ 40404 1775 35 in in IN 40404 1775 36 a a DT 40404 1775 37 firm firm JJ 40404 1775 38 grasp grasp NN 40404 1775 39 as as IN 40404 1775 40 running running NN 40404 1775 41 water water NN 40404 1775 42 can can MD 40404 1775 43 not not RB 40404 1775 44 . . . 40404 1776 1 Hard hard JJ 40404 1776 2 and and CC 40404 1776 3 fine fine JJ 40404 1776 4 - - HYPH 40404 1776 5 grained grain VBN 40404 1776 6 rocks rock NNS 40404 1776 7 , , , 40404 1776 8 such such JJ 40404 1776 9 as as IN 40404 1776 10 granite granite NN 40404 1776 11 and and CC 40404 1776 12 quartzite quartzite NN 40404 1776 13 , , , 40404 1776 14 are be VBP 40404 1776 15 often often RB 40404 1776 16 not not RB 40404 1776 17 only only RB 40404 1776 18 ground grind VBD 40404 1776 19 down down RP 40404 1776 20 to to IN 40404 1776 21 a a DT 40404 1776 22 smooth smooth JJ 40404 1776 23 surface surface NN 40404 1776 24 but but CC 40404 1776 25 are be VBP 40404 1776 26 also also RB 40404 1776 27 highly highly RB 40404 1776 28 polished polished JJ 40404 1776 29 by by IN 40404 1776 30 means mean NNS 40404 1776 31 of of IN 40404 1776 32 fine fine JJ 40404 1776 33 rock rock NN 40404 1776 34 flour flour NN 40404 1776 35 worn wear VBN 40404 1776 36 from from IN 40404 1776 37 the the DT 40404 1776 38 glacier glacier NNP 40404 1776 39 bed bed NN 40404 1776 40 . . . 40404 1777 1 In in IN 40404 1777 2 other other JJ 40404 1777 3 places place NNS 40404 1777 4 the the DT 40404 1777 5 bed bed NN 40404 1777 6 of of IN 40404 1777 7 the the DT 40404 1777 8 glacier glacier NN 40404 1777 9 is be VBZ 40404 1777 10 rough rough JJ 40404 1777 11 and and CC 40404 1777 12 torn torn JJ 40404 1777 13 . . . 40404 1778 1 The the DT 40404 1778 2 rocks rock NNS 40404 1778 3 have have VBP 40404 1778 4 been be VBN 40404 1778 5 disrupted disrupt VBN 40404 1778 6 and and CC 40404 1778 7 their -PRON- PRP$ 40404 1778 8 fragments fragment NNS 40404 1778 9 have have VBP 40404 1778 10 been be VBN 40404 1778 11 carried carry VBN 40404 1778 12 away,--a away,--a NNP 40404 1778 13 process process NN 40404 1778 14 known know VBN 40404 1778 15 as as IN 40404 1778 16 _ _ NNP 40404 1778 17 plucking plucking NN 40404 1778 18 _ _ NNP 40404 1778 19 . . . 40404 1779 1 Moving move VBG 40404 1779 2 under under IN 40404 1779 3 immense immense JJ 40404 1779 4 pressure pressure NN 40404 1779 5 the the DT 40404 1779 6 ice ice NN 40404 1779 7 shatters shatter VBZ 40404 1779 8 the the DT 40404 1779 9 rock rock NN 40404 1779 10 , , , 40404 1779 11 breaks break VBZ 40404 1779 12 off off RP 40404 1779 13 projections projection NNS 40404 1779 14 , , , 40404 1779 15 presses press NNS 40404 1779 16 into into IN 40404 1779 17 crevices crevice NNS 40404 1779 18 and and CC 40404 1779 19 wedges wedge VBZ 40404 1779 20 the the DT 40404 1779 21 rocks rock NNS 40404 1779 22 apart apart RB 40404 1779 23 , , , 40404 1779 24 dislodges dislodge VBZ 40404 1779 25 the the DT 40404 1779 26 blocks block NNS 40404 1779 27 into into IN 40404 1779 28 which which WDT 40404 1779 29 the the DT 40404 1779 30 rock rock NN 40404 1779 31 is be VBZ 40404 1779 32 divided divide VBN 40404 1779 33 by by IN 40404 1779 34 joints joint NNS 40404 1779 35 and and CC 40404 1779 36 bedding bed VBG 40404 1779 37 planes plane NNS 40404 1779 38 , , , 40404 1779 39 and and CC 40404 1779 40 freezing freeze VBG 40404 1779 41 fast fast RB 40404 1779 42 to to IN 40404 1779 43 the the DT 40404 1779 44 fragments fragment NNS 40404 1779 45 drags drag VBZ 40404 1779 46 them -PRON- PRP 40404 1779 47 on on RP 40404 1779 48 . . . 40404 1780 1 In in IN 40404 1780 2 this this DT 40404 1780 3 work work NN 40404 1780 4 the the DT 40404 1780 5 freezing freezing NN 40404 1780 6 and and CC 40404 1780 7 thawing thawing NN 40404 1780 8 of of IN 40404 1780 9 subglacial subglacial JJ 40404 1780 10 waters water NNS 40404 1780 11 in in IN 40404 1780 12 any any DT 40404 1780 13 cracks crack NNS 40404 1780 14 and and CC 40404 1780 15 crevices crevice NNS 40404 1780 16 of of IN 40404 1780 17 the the DT 40404 1780 18 rock rock NN 40404 1780 19 no no RB 40404 1780 20 doubt doubt RB 40404 1780 21 play play VBP 40404 1780 22 an an DT 40404 1780 23 important important JJ 40404 1780 24 part part NN 40404 1780 25 . . . 40404 1781 1 Plucking plucking NN 40404 1781 2 occurs occur VBZ 40404 1781 3 especially especially RB 40404 1781 4 where where WRB 40404 1781 5 the the DT 40404 1781 6 bed bed NN 40404 1781 7 rock rock NN 40404 1781 8 is be VBZ 40404 1781 9 weak weak JJ 40404 1781 10 because because IN 40404 1781 11 of of IN 40404 1781 12 close close JJ 40404 1781 13 jointing jointing NN 40404 1781 14 . . . 40404 1782 1 The the DT 40404 1782 2 product product NN 40404 1782 3 of of IN 40404 1782 4 plucking plucking NN 40404 1782 5 is be VBZ 40404 1782 6 bowlders bowlder NNS 40404 1782 7 , , , 40404 1782 8 while while IN 40404 1782 9 the the DT 40404 1782 10 product product NN 40404 1782 11 of of IN 40404 1782 12 abrasion abrasion NN 40404 1782 13 is be VBZ 40404 1782 14 fine fine JJ 40404 1782 15 rock rock NN 40404 1782 16 flour flour NN 40404 1782 17 and and CC 40404 1782 18 sand sand NN 40404 1782 19 . . . 40404 1783 1 Is be VBZ 40404 1783 2 the the DT 40404 1783 3 ground ground NN 40404 1783 4 moraine moraine NN 40404 1783 5 of of IN 40404 1783 6 Figure figure NN 40404 1783 7 87 87 CD 40404 1783 8 due due JJ 40404 1783 9 chiefly chiefly RB 40404 1783 10 to to TO 40404 1783 11 abrasion abrasion VB 40404 1783 12 or or CC 40404 1783 13 to to IN 40404 1783 14 plucking pluck VBG 40404 1783 15 ? ? . 40404 1784 1 [ [ -LRB- 40404 1784 2 Illustration illustration NN 40404 1784 3 : : : 40404 1784 4 Fig Fig NNP 40404 1784 5 . . . 40404 1785 1 111 111 CD 40404 1785 2 . . . 40404 1786 1 Roches Roches NNP 40404 1786 2 Moutonnés Moutonnés NNP 40404 1786 3 , , , 40404 1786 4 Bronx Bronx NNP 40404 1786 5 Park Park NNP 40404 1786 6 , , , 40404 1786 7 New New NNP 40404 1786 8 York York NNP 40404 1786 9 ] ] -RRB- 40404 1786 10 = = NFP 40404 1786 11 Roches roche NNS 40404 1786 12 moutonnées moutonnées IN 40404 1786 13 and and CC 40404 1786 14 rounded round VBD 40404 1786 15 hills.= hills.= CD 40404 1786 16 The the DT 40404 1786 17 prominences prominence NNS 40404 1786 18 left leave VBN 40404 1786 19 between between IN 40404 1786 20 the the DT 40404 1786 21 hollows hollow NNS 40404 1786 22 due due IN 40404 1786 23 to to IN 40404 1786 24 plucking plucking NN 40404 1786 25 are be VBP 40404 1786 26 commonly commonly RB 40404 1786 27 ground grind VBN 40404 1786 28 down down RP 40404 1786 29 and and CC 40404 1786 30 rounded round VBD 40404 1786 31 on on IN 40404 1786 32 the the DT 40404 1786 33 stoss stoss NN 40404 1786 34 side,--the side,--the DT 40404 1786 35 side side NN 40404 1786 36 from from IN 40404 1786 37 which which WDT 40404 1786 38 the the DT 40404 1786 39 ice ice NN 40404 1786 40 advances,--and advances,--and VBP 40404 1786 41 sometimes sometimes RB 40404 1786 42 on on IN 40404 1786 43 the the DT 40404 1786 44 opposite opposite NN 40404 1786 45 , , , 40404 1786 46 the the DT 40404 1786 47 lee lee NNP 40404 1786 48 side side NN 40404 1786 49 , , , 40404 1786 50 as as RB 40404 1786 51 well well RB 40404 1786 52 . . . 40404 1787 1 In in IN 40404 1787 2 this this DT 40404 1787 3 way way NN 40404 1787 4 the the DT 40404 1787 5 bed bed NN 40404 1787 6 rock rock NNP 40404 1787 7 often often RB 40404 1787 8 comes come VBZ 40404 1787 9 to to TO 40404 1787 10 have have VB 40404 1787 11 a a DT 40404 1787 12 billowy billowy JJ 40404 1787 13 surface surface NN 40404 1787 14 known know VBN 40404 1787 15 as as IN 40404 1787 16 roches roche NNS 40404 1787 17 moutonnées moutonnées IN 40404 1787 18 ( ( -LRB- 40404 1787 19 sheep sheep NN 40404 1787 20 rocks rock NNS 40404 1787 21 ) ) -RRB- 40404 1787 22 . . . 40404 1788 1 Hills hill NNS 40404 1788 2 overridden overridden VBP 40404 1788 3 by by IN 40404 1788 4 an an DT 40404 1788 5 ice ice NN 40404 1788 6 sheet sheet NN 40404 1788 7 often often RB 40404 1788 8 have have VBP 40404 1788 9 similarly similarly RB 40404 1788 10 rounded round VBN 40404 1788 11 contours contour NNS 40404 1788 12 on on IN 40404 1788 13 the the DT 40404 1788 14 stoss stoss JJ 40404 1788 15 side side NN 40404 1788 16 , , , 40404 1788 17 while while IN 40404 1788 18 on on IN 40404 1788 19 the the DT 40404 1788 20 lee lee NNP 40404 1788 21 side side NN 40404 1788 22 they -PRON- PRP 40404 1788 23 may may MD 40404 1788 24 be be VB 40404 1788 25 craggy craggy NN 40404 1788 26 , , , 40404 1788 27 either either CC 40404 1788 28 because because IN 40404 1788 29 of of IN 40404 1788 30 plucking plucking NN 40404 1788 31 or or CC 40404 1788 32 because because IN 40404 1788 33 here here RB 40404 1788 34 they -PRON- PRP 40404 1788 35 have have VBP 40404 1788 36 been be VBN 40404 1788 37 less less RBR 40404 1788 38 worn wear VBN 40404 1788 39 from from IN 40404 1788 40 their -PRON- PRP$ 40404 1788 41 initial initial JJ 40404 1788 42 profile profile NN 40404 1788 43 ( ( -LRB- 40404 1788 44 Fig fig NN 40404 1788 45 . . . 40404 1789 1 112 112 CD 40404 1789 2 ) ) -RRB- 40404 1789 3 . . . 40404 1790 1 = = NFP 40404 1790 2 The the DT 40404 1790 3 direction direction NN 40404 1790 4 of of IN 40404 1790 5 glacier glacier NN 40404 1790 6 movement.= movement.= CD 40404 1790 7 The the DT 40404 1790 8 direction direction NN 40404 1790 9 of of IN 40404 1790 10 the the DT 40404 1790 11 flow flow NN 40404 1790 12 of of IN 40404 1790 13 vanished vanished JJ 40404 1790 14 glaciers glacier NNS 40404 1790 15 and and CC 40404 1790 16 ice ice NN 40404 1790 17 sheets sheet NNS 40404 1790 18 is be VBZ 40404 1790 19 recorded record VBN 40404 1790 20 both both CC 40404 1790 21 in in IN 40404 1790 22 the the DT 40404 1790 23 differences difference NNS 40404 1790 24 just just RB 40404 1790 25 mentioned mention VBN 40404 1790 26 in in IN 40404 1790 27 the the DT 40404 1790 28 profiles profile NNS 40404 1790 29 of of IN 40404 1790 30 overridden overridden NNP 40404 1790 31 hills hills NNPS 40404 1790 32 and and CC 40404 1790 33 also also RB 40404 1790 34 in in IN 40404 1790 35 the the DT 40404 1790 36 minute minute NN 40404 1790 37 details detail NNS 40404 1790 38 of of IN 40404 1790 39 the the DT 40404 1790 40 glacier glacier NN 40404 1790 41 trail trail NN 40404 1790 42 . . . 40404 1791 1 Flint flint NN 40404 1791 2 nodules nodule VBZ 40404 1791 3 or or CC 40404 1791 4 other other JJ 40404 1791 5 small small JJ 40404 1791 6 prominences prominence NNS 40404 1791 7 in in IN 40404 1791 8 the the DT 40404 1791 9 bed bed NN 40404 1791 10 rock rock NN 40404 1791 11 are be VBP 40404 1791 12 found find VBN 40404 1791 13 more more RBR 40404 1791 14 worn worn JJ 40404 1791 15 on on IN 40404 1791 16 the the DT 40404 1791 17 stoss stoss NN 40404 1791 18 than than IN 40404 1791 19 on on IN 40404 1791 20 the the DT 40404 1791 21 lee lee NNP 40404 1791 22 side side NN 40404 1791 23 , , , 40404 1791 24 where where WRB 40404 1791 25 indeed indeed RB 40404 1791 26 they -PRON- PRP 40404 1791 27 may may MD 40404 1791 28 have have VB 40404 1791 29 a a DT 40404 1791 30 low low JJ 40404 1791 31 cone cone NN 40404 1791 32 of of IN 40404 1791 33 rock rock NN 40404 1791 34 protected protect VBN 40404 1791 35 by by IN 40404 1791 36 them -PRON- PRP 40404 1791 37 from from IN 40404 1791 38 abrasion abrasion NN 40404 1791 39 . . . 40404 1792 1 Cavities cavity NNS 40404 1792 2 , , , 40404 1792 3 on on IN 40404 1792 4 the the DT 40404 1792 5 other other JJ 40404 1792 6 hand hand NN 40404 1792 7 , , , 40404 1792 8 have have VBP 40404 1792 9 their -PRON- PRP$ 40404 1792 10 edges edge NNS 40404 1792 11 worn wear VBN 40404 1792 12 on on IN 40404 1792 13 the the DT 40404 1792 14 lee lee NNP 40404 1792 15 side side NN 40404 1792 16 and and CC 40404 1792 17 left leave VBD 40404 1792 18 sharp sharp JJ 40404 1792 19 upon upon IN 40404 1792 20 the the DT 40404 1792 21 stoss stoss NN 40404 1792 22 . . . 40404 1793 1 Surfaces surface NNS 40404 1793 2 worn wear VBN 40404 1793 3 and and CC 40404 1793 4 torn tear VBN 40404 1793 5 in in IN 40404 1793 6 the the DT 40404 1793 7 ways way NNS 40404 1793 8 which which WDT 40404 1793 9 we -PRON- PRP 40404 1793 10 have have VBP 40404 1793 11 mentioned mention VBN 40404 1793 12 are be VBP 40404 1793 13 said say VBN 40404 1793 14 to to TO 40404 1793 15 be be VB 40404 1793 16 glaciated glaciate VBN 40404 1793 17 . . . 40404 1794 1 But but CC 40404 1794 2 it -PRON- PRP 40404 1794 3 must must MD 40404 1794 4 not not RB 40404 1794 5 be be VB 40404 1794 6 supposed suppose VBN 40404 1794 7 that that IN 40404 1794 8 a a DT 40404 1794 9 glacier glacier NN 40404 1794 10 everywhere everywhere RB 40404 1794 11 glaciates glaciate VBZ 40404 1794 12 its -PRON- PRP$ 40404 1794 13 bed bed NN 40404 1794 14 . . . 40404 1795 1 Although although IN 40404 1795 2 in in IN 40404 1795 3 places place NNS 40404 1795 4 it -PRON- PRP 40404 1795 5 acts act VBZ 40404 1795 6 as as IN 40404 1795 7 a a DT 40404 1795 8 rasp rasp JJ 40404 1795 9 or or CC 40404 1795 10 as as IN 40404 1795 11 a a DT 40404 1795 12 pick pick NN 40404 1795 13 , , , 40404 1795 14 in in IN 40404 1795 15 others other NNS 40404 1795 16 , , , 40404 1795 17 and and CC 40404 1795 18 especially especially RB 40404 1795 19 where where WRB 40404 1795 20 its -PRON- PRP$ 40404 1795 21 pressure pressure NN 40404 1795 22 is be VBZ 40404 1795 23 least least JJS 40404 1795 24 , , , 40404 1795 25 as as IN 40404 1795 26 near near IN 40404 1795 27 the the DT 40404 1795 28 terminus terminus NN 40404 1795 29 , , , 40404 1795 30 it -PRON- PRP 40404 1795 31 moves move VBZ 40404 1795 32 over over IN 40404 1795 33 its -PRON- PRP$ 40404 1795 34 bed bed NN 40404 1795 35 in in IN 40404 1795 36 the the DT 40404 1795 37 manner manner NN 40404 1795 38 of of IN 40404 1795 39 a a DT 40404 1795 40 sled sled JJ 40404 1795 41 . . . 40404 1796 1 Instances instance NNS 40404 1796 2 are be VBP 40404 1796 3 known know VBN 40404 1796 4 where where WRB 40404 1796 5 glaciers glacier NNS 40404 1796 6 have have VBP 40404 1796 7 advanced advance VBN 40404 1796 8 over over IN 40404 1796 9 deposits deposit NNS 40404 1796 10 of of IN 40404 1796 11 sand sand NN 40404 1796 12 and and CC 40404 1796 13 gravel gravel NN 40404 1796 14 without without IN 40404 1796 15 disturbing disturb VBG 40404 1796 16 them -PRON- PRP 40404 1796 17 to to IN 40404 1796 18 any any DT 40404 1796 19 notable notable JJ 40404 1796 20 degree degree NN 40404 1796 21 . . . 40404 1797 1 Like like IN 40404 1797 2 a a DT 40404 1797 3 river river NN 40404 1797 4 , , , 40404 1797 5 a a DT 40404 1797 6 glacier glacier NN 40404 1797 7 does do VBZ 40404 1797 8 not not RB 40404 1797 9 everywhere everywhere RB 40404 1797 10 erode erode VB 40404 1797 11 . . . 40404 1798 1 In in IN 40404 1798 2 places place NNS 40404 1798 3 it -PRON- PRP 40404 1798 4 leaves leave VBZ 40404 1798 5 its -PRON- PRP$ 40404 1798 6 bed bed NN 40404 1798 7 undisturbed undisturbed JJ 40404 1798 8 and and CC 40404 1798 9 in in IN 40404 1798 10 places place NNS 40404 1798 11 aggrades aggrade VBZ 40404 1798 12 it -PRON- PRP 40404 1798 13 by by IN 40404 1798 14 deposits deposit NNS 40404 1798 15 of of IN 40404 1798 16 the the DT 40404 1798 17 ground ground NN 40404 1798 18 moraine moraine VBP 40404 1798 19 . . . 40404 1799 1 [ [ -LRB- 40404 1799 2 Illustration illustration NN 40404 1799 3 : : : 40404 1799 4 Fig Fig NNP 40404 1799 5 . . . 40404 1800 1 112 112 CD 40404 1800 2 . . . 40404 1801 1 A a DT 40404 1801 2 Glaciated Glaciated NNP 40404 1801 3 Hill Hill NNP 40404 1801 4 , , , 40404 1801 5 Norway Norway NNP 40404 1801 6 . . . 40404 1802 1 Sharp sharp JJ 40404 1802 2 Weathered Weathered NNP 40404 1802 3 Mountain Mountain NNP 40404 1802 4 Peaks Peaks NNPS 40404 1802 5 in in IN 40404 1802 6 the the DT 40404 1802 7 Distance Distance NNP 40404 1802 8 ] ] -RRB- 40404 1802 9 = = VBZ 40404 1802 10 Cirques.= Cirques.= NNP 40404 1802 11 Valley Valley NNP 40404 1802 12 glaciers glacier NNS 40404 1802 13 commonly commonly RB 40404 1802 14 head head VBP 40404 1802 15 as as IN 40404 1802 16 we -PRON- PRP 40404 1802 17 have have VBP 40404 1802 18 seen see VBN 40404 1802 19 , , , 40404 1802 20 in in IN 40404 1802 21 broad broad JJ 40404 1802 22 amphitheaters amphitheater NNS 40404 1802 23 deeply deeply RB 40404 1802 24 filled fill VBN 40404 1802 25 with with IN 40404 1802 26 snow snow NN 40404 1802 27 and and CC 40404 1802 28 ice ice NN 40404 1802 29 . . . 40404 1803 1 On on IN 40404 1803 2 mountains mountain NNS 40404 1803 3 now now RB 40404 1803 4 destitute destitute NN 40404 1803 5 of of IN 40404 1803 6 glaciers glacier NNS 40404 1803 7 , , , 40404 1803 8 but but CC 40404 1803 9 whose whose WP$ 40404 1803 10 glaciation glaciation NN 40404 1803 11 shows show VBZ 40404 1803 12 that that IN 40404 1803 13 they -PRON- PRP 40404 1803 14 have have VBP 40404 1803 15 supported support VBN 40404 1803 16 glaciers glacier NNS 40404 1803 17 in in IN 40404 1803 18 the the DT 40404 1803 19 past past NN 40404 1803 20 , , , 40404 1803 21 there there EX 40404 1803 22 are be VBP 40404 1803 23 found find VBN 40404 1803 24 similar similar JJ 40404 1803 25 crescentic crescentic JJ 40404 1803 26 hollows hollow NNS 40404 1803 27 with with IN 40404 1803 28 high high JJ 40404 1803 29 , , , 40404 1803 30 precipitous precipitous JJ 40404 1803 31 walls wall NNS 40404 1803 32 and and CC 40404 1803 33 glaciated glaciated JJ 40404 1803 34 floors floor NNS 40404 1803 35 . . . 40404 1804 1 Their -PRON- PRP$ 40404 1804 2 floors floor NNS 40404 1804 3 are be VBP 40404 1804 4 often often RB 40404 1804 5 basined basine VBN 40404 1804 6 and and CC 40404 1804 7 hold hold VB 40404 1804 8 lakelets lakelet NNS 40404 1804 9 whose whose WP$ 40404 1804 10 deep deep JJ 40404 1804 11 and and CC 40404 1804 12 quiet quiet JJ 40404 1804 13 waters water NNS 40404 1804 14 reflect reflect VBP 40404 1804 15 the the DT 40404 1804 16 sheltering shelter VBG 40404 1804 17 ramparts rampart NNS 40404 1804 18 of of IN 40404 1804 19 rugged rugged JJ 40404 1804 20 rock rock NN 40404 1804 21 which which WDT 40404 1804 22 tower tower VBP 40404 1804 23 far far RB 40404 1804 24 above above IN 40404 1804 25 them -PRON- PRP 40404 1804 26 . . . 40404 1805 1 Such such JJ 40404 1805 2 mountain mountain NN 40404 1805 3 hollows hollow NNS 40404 1805 4 are be VBP 40404 1805 5 termed term VBN 40404 1805 6 _ _ NNP 40404 1805 7 cirques cirque NNS 40404 1805 8 _ _ NNP 40404 1805 9 . . . 40404 1806 1 As as IN 40404 1806 2 a a DT 40404 1806 3 powerful powerful JJ 40404 1806 4 spring spring NN 40404 1806 5 wears wear VBZ 40404 1806 6 back back RB 40404 1806 7 a a DT 40404 1806 8 recess recess NN 40404 1806 9 in in IN 40404 1806 10 the the DT 40404 1806 11 valley valley NN 40404 1806 12 side side NN 40404 1806 13 where where WRB 40404 1806 14 it -PRON- PRP 40404 1806 15 discharges discharge VBZ 40404 1806 16 , , , 40404 1806 17 so so RB 40404 1806 18 the the DT 40404 1806 19 fountain fountain JJ 40404 1806 20 head head NN 40404 1806 21 of of IN 40404 1806 22 a a DT 40404 1806 23 glacier glacier NN 40404 1806 24 gradually gradually RB 40404 1806 25 wears wear VBZ 40404 1806 26 back back RP 40404 1806 27 a a DT 40404 1806 28 cirque cirque NN 40404 1806 29 . . . 40404 1807 1 In in IN 40404 1807 2 its -PRON- PRP$ 40404 1807 3 slow slow JJ 40404 1807 4 movement movement NN 40404 1807 5 the the DT 40404 1807 6 névé névé NNP 40404 1807 7 field field NN 40404 1807 8 broadly broadly RB 40404 1807 9 scours scour VBZ 40404 1807 10 its -PRON- PRP$ 40404 1807 11 bed bed NN 40404 1807 12 to to IN 40404 1807 13 a a DT 40404 1807 14 flat flat JJ 40404 1807 15 or or CC 40404 1807 16 basined basine VBN 40404 1807 17 floor floor NN 40404 1807 18 . . . 40404 1808 1 Meanwhile meanwhile RB 40404 1808 2 the the DT 40404 1808 3 sides side NNS 40404 1808 4 of of IN 40404 1808 5 the the DT 40404 1808 6 valley valley NNP 40404 1808 7 head head NN 40404 1808 8 are be VBP 40404 1808 9 steepened steepen VBN 40404 1808 10 and and CC 40404 1808 11 driven drive VBN 40404 1808 12 back back RB 40404 1808 13 to to IN 40404 1808 14 precipitous precipitous JJ 40404 1808 15 walls wall NNS 40404 1808 16 . . . 40404 1809 1 For for IN 40404 1809 2 in in IN 40404 1809 3 winter winter NN 40404 1809 4 the the DT 40404 1809 5 crevasse crevasse NN 40404 1809 6 of of IN 40404 1809 7 the the DT 40404 1809 8 bergschrund bergschrund NN 40404 1809 9 which which WDT 40404 1809 10 surrounds surround VBZ 40404 1809 11 the the DT 40404 1809 12 névé névé NNP 40404 1809 13 field field NN 40404 1809 14 is be VBZ 40404 1809 15 filled fill VBN 40404 1809 16 with with IN 40404 1809 17 snow snow NN 40404 1809 18 and and CC 40404 1809 19 the the DT 40404 1809 20 névé névé NNS 40404 1809 21 is be VBZ 40404 1809 22 frozen freeze VBN 40404 1809 23 fast fast RB 40404 1809 24 to to IN 40404 1809 25 the the DT 40404 1809 26 rocky rocky JJ 40404 1809 27 sides side NNS 40404 1809 28 of of IN 40404 1809 29 the the DT 40404 1809 30 valley valley NN 40404 1809 31 . . . 40404 1810 1 In in IN 40404 1810 2 early early JJ 40404 1810 3 summer summer NN 40404 1810 4 the the DT 40404 1810 5 névé névé NNP 40404 1810 6 tears tear VBZ 40404 1810 7 itself -PRON- PRP 40404 1810 8 free free JJ 40404 1810 9 , , , 40404 1810 10 dislodging dislodge VBG 40404 1810 11 and and CC 40404 1810 12 removing remove VBG 40404 1810 13 any any DT 40404 1810 14 loosened loosened JJ 40404 1810 15 blocks block NNS 40404 1810 16 , , , 40404 1810 17 and and CC 40404 1810 18 the the DT 40404 1810 19 open open JJ 40404 1810 20 fissure fissure NN 40404 1810 21 of of IN 40404 1810 22 the the DT 40404 1810 23 bergschrund bergschrund NN 40404 1810 24 allows allow VBZ 40404 1810 25 frost frost NN 40404 1810 26 and and CC 40404 1810 27 other other JJ 40404 1810 28 agencies agency NNS 40404 1810 29 of of IN 40404 1810 30 weathering weather VBG 40404 1810 31 to to TO 40404 1810 32 attack attack VB 40404 1810 33 the the DT 40404 1810 34 unprotected unprotected JJ 40404 1810 35 rock rock NN 40404 1810 36 . . . 40404 1811 1 As as IN 40404 1811 2 cirques cirque NNS 40404 1811 3 are be VBP 40404 1811 4 thus thus RB 40404 1811 5 formed form VBN 40404 1811 6 and and CC 40404 1811 7 enlarged enlarge VBD 40404 1811 8 the the DT 40404 1811 9 peaks peak NNS 40404 1811 10 beneath beneath IN 40404 1811 11 which which WDT 40404 1811 12 they -PRON- PRP 40404 1811 13 lie lie VBP 40404 1811 14 are be VBP 40404 1811 15 sharpened sharpened JJ 40404 1811 16 , , , 40404 1811 17 and and CC 40404 1811 18 the the DT 40404 1811 19 mountain mountain NN 40404 1811 20 crests crest NNS 40404 1811 21 are be VBP 40404 1811 22 scalloped scallop VBN 40404 1811 23 and and CC 40404 1811 24 cut cut VBN 40404 1811 25 back back RB 40404 1811 26 from from IN 40404 1811 27 either either DT 40404 1811 28 side side NN 40404 1811 29 to to IN 40404 1811 30 knife knife NN 40404 1811 31 - - HYPH 40404 1811 32 edged edge VBN 40404 1811 33 ridges ridge NNS 40404 1811 34 ( ( -LRB- 40404 1811 35 Figs fig NNS 40404 1811 36 . . . 40404 1812 1 113 113 CD 40404 1812 2 and and CC 40404 1812 3 93 93 CD 40404 1812 4 ) ) -RRB- 40404 1812 5 . . . 40404 1813 1 [ [ -LRB- 40404 1813 2 Illustration illustration NN 40404 1813 3 : : : 40404 1813 4 Fig Fig NNP 40404 1813 5 . . . 40404 1814 1 113 113 CD 40404 1814 2 . . . 40404 1815 1 Cirques Cirques NNP 40404 1815 2 , , , 40404 1815 3 Sierra Sierra NNP 40404 1815 4 Nevada Nevada NNP 40404 1815 5 Mountains Mountains NNPS 40404 1815 6 ] ] -RRB- 40404 1815 7 In in IN 40404 1815 8 the the DT 40404 1815 9 western western JJ 40404 1815 10 mountains mountain NNS 40404 1815 11 of of IN 40404 1815 12 the the DT 40404 1815 13 United United NNP 40404 1815 14 States States NNP 40404 1815 15 many many JJ 40404 1815 16 cirques cirque NNS 40404 1815 17 , , , 40404 1815 18 now now RB 40404 1815 19 empty empty JJ 40404 1815 20 of of IN 40404 1815 21 névé névé NNP 40404 1815 22 and and CC 40404 1815 23 glacier glacier NNP 40404 1815 24 ice ice NN 40404 1815 25 , , , 40404 1815 26 and and CC 40404 1815 27 known know VBN 40404 1815 28 locally locally RB 40404 1815 29 as as IN 40404 1815 30 " " `` 40404 1815 31 basins basin NNS 40404 1815 32 , , , 40404 1815 33 " " '' 40404 1815 34 testify testify VB 40404 1815 35 to to IN 40404 1815 36 the the DT 40404 1815 37 fact fact NN 40404 1815 38 that that IN 40404 1815 39 in in IN 40404 1815 40 recent recent JJ 40404 1815 41 times time NNS 40404 1815 42 the the DT 40404 1815 43 snow snow NN 40404 1815 44 line line NN 40404 1815 45 stood stand VBD 40404 1815 46 beneath beneath IN 40404 1815 47 the the DT 40404 1815 48 levels level NNS 40404 1815 49 of of IN 40404 1815 50 their -PRON- PRP$ 40404 1815 51 floors floor NNS 40404 1815 52 , , , 40404 1815 53 and and CC 40404 1815 54 thus thus RB 40404 1815 55 far far RB 40404 1815 56 below below IN 40404 1815 57 its -PRON- PRP$ 40404 1815 58 present present JJ 40404 1815 59 altitude altitude NN 40404 1815 60 . . . 40404 1816 1 [ [ -LRB- 40404 1816 2 Illustration illustration NN 40404 1816 3 : : : 40404 1816 4 Fig Fig NNP 40404 1816 5 . . . 40404 1817 1 114 114 CD 40404 1817 2 . . . 40404 1818 1 A a DT 40404 1818 2 Glacier Glacier NNP 40404 1818 3 Trough Trough NNP 40404 1818 4 , , , 40404 1818 5 Montana Montana NNP 40404 1818 6 ] ] -RRB- 40404 1818 7 = = NFP 40404 1818 8 Glacier Glacier NNP 40404 1818 9 troughs.= troughs.= CD 40404 1818 10 The the DT 40404 1818 11 channel channel NN 40404 1818 12 worn wear VBN 40404 1818 13 to to TO 40404 1818 14 accommodate accommodate VB 40404 1818 15 the the DT 40404 1818 16 big big JJ 40404 1818 17 and and CC 40404 1818 18 clumsy clumsy JJ 40404 1818 19 glacier glacier NN 40404 1818 20 differs differ VBZ 40404 1818 21 markedly markedly RB 40404 1818 22 from from IN 40404 1818 23 the the DT 40404 1818 24 river river NN 40404 1818 25 valley valley NN 40404 1818 26 cut cut NN 40404 1818 27 as as IN 40404 1818 28 with with IN 40404 1818 29 a a DT 40404 1818 30 saw saw NN 40404 1818 31 by by IN 40404 1818 32 the the DT 40404 1818 33 narrow narrow JJ 40404 1818 34 and and CC 40404 1818 35 flexible flexible JJ 40404 1818 36 stream stream NN 40404 1818 37 and and CC 40404 1818 38 widened widen VBN 40404 1818 39 by by IN 40404 1818 40 the the DT 40404 1818 41 weather weather NN 40404 1818 42 and and CC 40404 1818 43 the the DT 40404 1818 44 wash wash NN 40404 1818 45 of of IN 40404 1818 46 rains rain NNS 40404 1818 47 . . . 40404 1819 1 The the DT 40404 1819 2 valley valley NN 40404 1819 3 glacier glacier NN 40404 1819 4 may may MD 40404 1819 5 easily easily RB 40404 1819 6 be be VB 40404 1819 7 from from IN 40404 1819 8 one one CD 40404 1819 9 thousand thousand CD 40404 1819 10 to to IN 40404 1819 11 three three CD 40404 1819 12 thousand thousand CD 40404 1819 13 feet foot NNS 40404 1819 14 deep deep JJ 40404 1819 15 and and CC 40404 1819 16 from from IN 40404 1819 17 one one CD 40404 1819 18 to to TO 40404 1819 19 three three CD 40404 1819 20 miles mile NNS 40404 1819 21 wide wide JJ 40404 1819 22 . . . 40404 1820 1 Such such PDT 40404 1820 2 a a DT 40404 1820 3 ponderous ponderous JJ 40404 1820 4 bulk bulk NN 40404 1820 5 of of IN 40404 1820 6 slowly slowly RB 40404 1820 7 moving move VBG 40404 1820 8 ice ice NN 40404 1820 9 does do VBZ 40404 1820 10 not not RB 40404 1820 11 readily readily RB 40404 1820 12 adapt adapt VB 40404 1820 13 itself -PRON- PRP 40404 1820 14 to to IN 40404 1820 15 sharp sharp JJ 40404 1820 16 turns turn NNS 40404 1820 17 and and CC 40404 1820 18 a a DT 40404 1820 19 narrow narrow JJ 40404 1820 20 bed bed NN 40404 1820 21 . . . 40404 1821 1 By by IN 40404 1821 2 scouring scour VBG 40404 1821 3 and and CC 40404 1821 4 plucking pluck VBG 40404 1821 5 all all DT 40404 1821 6 resisting resist VBG 40404 1821 7 edges edge NNS 40404 1821 8 it -PRON- PRP 40404 1821 9 develops develop VBZ 40404 1821 10 a a DT 40404 1821 11 fitting fitting JJ 40404 1821 12 channel channel NN 40404 1821 13 with with IN 40404 1821 14 a a DT 40404 1821 15 wide wide JJ 40404 1821 16 , , , 40404 1821 17 flat flat JJ 40404 1821 18 floor floor NN 40404 1821 19 , , , 40404 1821 20 and and CC 40404 1821 21 steep steep JJ 40404 1821 22 , , , 40404 1821 23 smooth smooth JJ 40404 1821 24 sides side NNS 40404 1821 25 , , , 40404 1821 26 above above IN 40404 1821 27 which which WDT 40404 1821 28 are be VBP 40404 1821 29 seen see VBN 40404 1821 30 the the DT 40404 1821 31 weathered weather VBN 40404 1821 32 slopes slope NNS 40404 1821 33 of of IN 40404 1821 34 stream stream NN 40404 1821 35 - - HYPH 40404 1821 36 worn wear VBN 40404 1821 37 mountain mountain NN 40404 1821 38 valleys valley NNS 40404 1821 39 . . . 40404 1822 1 Since since IN 40404 1822 2 the the DT 40404 1822 3 trunk trunk NN 40404 1822 4 glacier glacier NN 40404 1822 5 requires require VBZ 40404 1822 6 a a DT 40404 1822 7 deeper deep JJR 40404 1822 8 channel channel NN 40404 1822 9 than than IN 40404 1822 10 do do VB 40404 1822 11 its -PRON- PRP$ 40404 1822 12 branches branch NNS 40404 1822 13 , , , 40404 1822 14 the the DT 40404 1822 15 bed bed NN 40404 1822 16 of of IN 40404 1822 17 a a DT 40404 1822 18 branch branch NN 40404 1822 19 glacier glacier NN 40404 1822 20 enters enter VBZ 40404 1822 21 the the DT 40404 1822 22 main main JJ 40404 1822 23 trough trough NN 40404 1822 24 at at IN 40404 1822 25 some some DT 40404 1822 26 distance distance NN 40404 1822 27 above above IN 40404 1822 28 the the DT 40404 1822 29 floor floor NN 40404 1822 30 of of IN 40404 1822 31 the the DT 40404 1822 32 latter latter JJ 40404 1822 33 , , , 40404 1822 34 although although IN 40404 1822 35 the the DT 40404 1822 36 surface surface NN 40404 1822 37 of of IN 40404 1822 38 the the DT 40404 1822 39 two two CD 40404 1822 40 ice ice NN 40404 1822 41 streams stream NNS 40404 1822 42 may may MD 40404 1822 43 be be VB 40404 1822 44 accordant accordant JJ 40404 1822 45 . . . 40404 1823 1 Glacier glacier NN 40404 1823 2 troughs trough NNS 40404 1823 3 can can MD 40404 1823 4 be be VB 40404 1823 5 studied study VBN 40404 1823 6 best best RB 40404 1823 7 where where WRB 40404 1823 8 large large JJ 40404 1823 9 glaciers glacier NNS 40404 1823 10 have have VBP 40404 1823 11 recently recently RB 40404 1823 12 melted melt VBN 40404 1823 13 completely completely RB 40404 1823 14 away away RB 40404 1823 15 , , , 40404 1823 16 as as IN 40404 1823 17 is be VBZ 40404 1823 18 the the DT 40404 1823 19 case case NN 40404 1823 20 in in IN 40404 1823 21 many many JJ 40404 1823 22 valleys valley NNS 40404 1823 23 of of IN 40404 1823 24 the the DT 40404 1823 25 mountains mountain NNS 40404 1823 26 of of IN 40404 1823 27 the the DT 40404 1823 28 western western JJ 40404 1823 29 United United NNP 40404 1823 30 States States NNP 40404 1823 31 and and CC 40404 1823 32 of of IN 40404 1823 33 central central JJ 40404 1823 34 and and CC 40404 1823 35 northern northern JJ 40404 1823 36 Europe Europe NNP 40404 1823 37 ( ( -LRB- 40404 1823 38 Fig Fig NNP 40404 1823 39 . . . 40404 1824 1 114 114 CD 40404 1824 2 ) ) -RRB- 40404 1824 3 . . . 40404 1825 1 The the DT 40404 1825 2 typical typical JJ 40404 1825 3 glacier glacier NN 40404 1825 4 trough trough NN 40404 1825 5 , , , 40404 1825 6 as as IN 40404 1825 7 shown show VBN 40404 1825 8 in in IN 40404 1825 9 such such JJ 40404 1825 10 examples example NNS 40404 1825 11 , , , 40404 1825 12 is be VBZ 40404 1825 13 U u NN 40404 1825 14 - - HYPH 40404 1825 15 shaped shaped JJ 40404 1825 16 , , , 40404 1825 17 with with IN 40404 1825 18 a a DT 40404 1825 19 broad broad JJ 40404 1825 20 , , , 40404 1825 21 flat flat JJ 40404 1825 22 floor floor NN 40404 1825 23 , , , 40404 1825 24 and and CC 40404 1825 25 high high JJ 40404 1825 26 , , , 40404 1825 27 steep steep JJ 40404 1825 28 walls wall NNS 40404 1825 29 . . . 40404 1826 1 Its -PRON- PRP$ 40404 1826 2 walls wall NNS 40404 1826 3 are be VBP 40404 1826 4 little little RB 40404 1826 5 broken break VBN 40404 1826 6 by by IN 40404 1826 7 projecting project VBG 40404 1826 8 spurs spur NNS 40404 1826 9 and and CC 40404 1826 10 lateral lateral JJ 40404 1826 11 ravines ravine NNS 40404 1826 12 . . . 40404 1827 1 It -PRON- PRP 40404 1827 2 is be VBZ 40404 1827 3 as as IN 40404 1827 4 if if IN 40404 1827 5 a a DT 40404 1827 6 V V NNP 40404 1827 7 - - HYPH 40404 1827 8 valley valley NNP 40404 1827 9 cut cut VBN 40404 1827 10 by by IN 40404 1827 11 a a DT 40404 1827 12 river river NN 40404 1827 13 had have VBD 40404 1827 14 afterwards afterwards RB 40404 1827 15 been be VBN 40404 1827 16 gouged gouge VBN 40404 1827 17 deeper deeply RBR 40404 1827 18 with with IN 40404 1827 19 a a DT 40404 1827 20 gigantic gigantic JJ 40404 1827 21 chisel chisel NN 40404 1827 22 , , , 40404 1827 23 widening widen VBG 40404 1827 24 the the DT 40404 1827 25 floor floor NN 40404 1827 26 to to IN 40404 1827 27 the the DT 40404 1827 28 width width NN 40404 1827 29 of of IN 40404 1827 30 the the DT 40404 1827 31 chisel chisel NN 40404 1827 32 blade blade NN 40404 1827 33 , , , 40404 1827 34 cutting cut VBG 40404 1827 35 back back RP 40404 1827 36 the the DT 40404 1827 37 spurs spur NNS 40404 1827 38 , , , 40404 1827 39 and and CC 40404 1827 40 smoothing smooth VBG 40404 1827 41 and and CC 40404 1827 42 steepening steepen VBG 40404 1827 43 the the DT 40404 1827 44 sides side NNS 40404 1827 45 . . . 40404 1828 1 A a DT 40404 1828 2 river river NN 40404 1828 3 valley valley NN 40404 1828 4 could could MD 40404 1828 5 only only RB 40404 1828 6 be be VB 40404 1828 7 as as RB 40404 1828 8 wide wide RB 40404 1828 9 - - HYPH 40404 1828 10 floored floored JJ 40404 1828 11 as as IN 40404 1828 12 this this DT 40404 1828 13 after after IN 40404 1828 14 it -PRON- PRP 40404 1828 15 had have VBD 40404 1828 16 long long RB 40404 1828 17 been be VBN 40404 1828 18 worn wear VBN 40404 1828 19 down down RP 40404 1828 20 to to IN 40404 1828 21 grade grade NN 40404 1828 22 . . . 40404 1829 1 [ [ -LRB- 40404 1829 2 Illustration illustration NN 40404 1829 3 : : : 40404 1829 4 Fig Fig NNP 40404 1829 5 . . . 40404 1830 1 115 115 CD 40404 1830 2 Lynn Lynn NNP 40404 1830 3 Canal Canal NNP 40404 1830 4 , , , 40404 1830 5 Alaska Alaska NNP 40404 1830 6 , , , 40404 1830 7 a a DT 40404 1830 8 Fjord Fjord NNP 40404 1830 9 ] ] -RRB- 40404 1830 10 But but CC 40404 1830 11 the the DT 40404 1830 12 floor floor NN 40404 1830 13 of of IN 40404 1830 14 a a DT 40404 1830 15 glacier glacier NN 40404 1830 16 trough trough NN 40404 1830 17 may may MD 40404 1830 18 not not RB 40404 1830 19 be be VB 40404 1830 20 graded grade VBN 40404 1830 21 ; ; : 40404 1830 22 it -PRON- PRP 40404 1830 23 is be VBZ 40404 1830 24 often often RB 40404 1830 25 interrupted interrupt VBN 40404 1830 26 by by IN 40404 1830 27 irregular irregular JJ 40404 1830 28 steps step NNS 40404 1830 29 perhaps perhaps RB 40404 1830 30 hundreds hundred NNS 40404 1830 31 and and CC 40404 1830 32 even even RB 40404 1830 33 a a DT 40404 1830 34 thousand thousand CD 40404 1830 35 feet foot NNS 40404 1830 36 in in IN 40404 1830 37 height height NN 40404 1830 38 , , , 40404 1830 39 over over IN 40404 1830 40 which which WDT 40404 1830 41 the the DT 40404 1830 42 stream stream NN 40404 1830 43 that that WDT 40404 1830 44 now now RB 40404 1830 45 drains drain VBZ 40404 1830 46 the the DT 40404 1830 47 valley valley NNP 40404 1830 48 tumbles tumble NNS 40404 1830 49 in in IN 40404 1830 50 waterfalls waterfall NNS 40404 1830 51 . . . 40404 1831 1 Reaches reach NNS 40404 1831 2 between between IN 40404 1831 3 the the DT 40404 1831 4 steps step NNS 40404 1831 5 are be VBP 40404 1831 6 often often RB 40404 1831 7 basined basine VBN 40404 1831 8 . . . 40404 1832 1 Lakelets lakelet NNS 40404 1832 2 may may MD 40404 1832 3 occupy occupy VB 40404 1832 4 hollows hollow NNS 40404 1832 5 excavated excavate VBN 40404 1832 6 in in IN 40404 1832 7 solid solid JJ 40404 1832 8 rock rock NN 40404 1832 9 , , , 40404 1832 10 and and CC 40404 1832 11 other other JJ 40404 1832 12 lakes lake NNS 40404 1832 13 may may MD 40404 1832 14 be be VB 40404 1832 15 held hold VBN 40404 1832 16 behind behind IN 40404 1832 17 terminal terminal JJ 40404 1832 18 moraines moraine NNS 40404 1832 19 left leave VBN 40404 1832 20 as as IN 40404 1832 21 dams dam NNS 40404 1832 22 across across IN 40404 1832 23 the the DT 40404 1832 24 valley valley NN 40404 1832 25 at at IN 40404 1832 26 pauses pause NNS 40404 1832 27 in in IN 40404 1832 28 the the DT 40404 1832 29 retreat retreat NN 40404 1832 30 of of IN 40404 1832 31 the the DT 40404 1832 32 glacier glacier NN 40404 1832 33 . . . 40404 1833 1 = = NFP 40404 1833 2 Fjords= fjords= CD 40404 1833 3 are be VBP 40404 1833 4 glacier glacier NN 40404 1833 5 troughs trough NNS 40404 1833 6 now now RB 40404 1833 7 occupied occupy VBN 40404 1833 8 in in IN 40404 1833 9 part part NN 40404 1833 10 or or CC 40404 1833 11 wholly wholly RB 40404 1833 12 by by IN 40404 1833 13 the the DT 40404 1833 14 sea sea NN 40404 1833 15 , , , 40404 1833 16 either either CC 40404 1833 17 because because IN 40404 1833 18 they -PRON- PRP 40404 1833 19 were be VBD 40404 1833 20 excavated excavate VBN 40404 1833 21 by by IN 40404 1833 22 a a DT 40404 1833 23 tide tide NN 40404 1833 24 glacier glacier NN 40404 1833 25 to to IN 40404 1833 26 their -PRON- PRP$ 40404 1833 27 present present JJ 40404 1833 28 depth depth NN 40404 1833 29 below below IN 40404 1833 30 sea sea NN 40404 1833 31 level level NN 40404 1833 32 , , , 40404 1833 33 or or CC 40404 1833 34 because because IN 40404 1833 35 of of IN 40404 1833 36 a a DT 40404 1833 37 submergence submergence NN 40404 1833 38 of of IN 40404 1833 39 the the DT 40404 1833 40 land land NN 40404 1833 41 . . . 40404 1834 1 Their -PRON- PRP$ 40404 1834 2 characteristic characteristic JJ 40404 1834 3 form form NN 40404 1834 4 is be VBZ 40404 1834 5 that that DT 40404 1834 6 of of IN 40404 1834 7 a a DT 40404 1834 8 long long JJ 40404 1834 9 , , , 40404 1834 10 deep deep JJ 40404 1834 11 , , , 40404 1834 12 narrow narrow JJ 40404 1834 13 bay bay NN 40404 1834 14 with with IN 40404 1834 15 steep steep JJ 40404 1834 16 rock rock NN 40404 1834 17 walls wall NNS 40404 1834 18 and and CC 40404 1834 19 basined basine VBN 40404 1834 20 floor floor NN 40404 1834 21 ( ( -LRB- 40404 1834 22 Fig fig NN 40404 1834 23 . . . 40404 1835 1 115 115 CD 40404 1835 2 ) ) -RRB- 40404 1835 3 . . . 40404 1836 1 Fjords fjord NNS 40404 1836 2 are be VBP 40404 1836 3 found find VBN 40404 1836 4 only only RB 40404 1836 5 in in IN 40404 1836 6 regions region NNS 40404 1836 7 which which WDT 40404 1836 8 have have VBP 40404 1836 9 suffered suffer VBN 40404 1836 10 glaciation glaciation NN 40404 1836 11 , , , 40404 1836 12 such such JJ 40404 1836 13 as as IN 40404 1836 14 Norway Norway NNP 40404 1836 15 and and CC 40404 1836 16 Alaska Alaska NNP 40404 1836 17 . . . 40404 1837 1 [ [ -LRB- 40404 1837 2 Illustration illustration NN 40404 1837 3 : : : 40404 1837 4 Fig Fig NNP 40404 1837 5 . . . 40404 1838 1 116 116 CD 40404 1838 2 . . . 40404 1839 1 _ _ NNP 40404 1839 2 A A NNP 40404 1839 3 _ _ NNP 40404 1839 4 , , , 40404 1839 5 V V NNP 40404 1839 6 - - HYPH 40404 1839 7 River River NNP 40404 1839 8 Valley Valley NNP 40404 1839 9 , , , 40404 1839 10 with with IN 40404 1839 11 Valley Valley NNP 40404 1839 12 of of IN 40404 1839 13 Tributary Tributary NNP 40404 1839 14 joining join VBG 40404 1839 15 it -PRON- PRP 40404 1839 16 a a DT 40404 1839 17 Accordant Accordant NNP 40404 1839 18 Level Level NNP 40404 1839 19 ; ; : 40404 1839 20 _ _ NNP 40404 1839 21 B B NNP 40404 1839 22 _ _ NNP 40404 1839 23 , , , 40404 1839 24 the the DT 40404 1839 25 Same Same NNP 40404 1839 26 changed change VBN 40404 1839 27 after after IN 40404 1839 28 Long Long NNP 40404 1839 29 Glaciation Glaciation NNP 40404 1839 30 to to IN 40404 1839 31 a a DT 40404 1839 32 Trough Trough NNP 40404 1839 33 with with IN 40404 1839 34 Hanging Hanging NNP 40404 1839 35 Valley Valley NNP 40404 1839 36 ] ] -RRB- 40404 1839 37 = = NFP 40404 1839 38 Hanging hang VBG 40404 1839 39 valleys.= valleys.= NNS 40404 1839 40 These these DT 40404 1839 41 are be VBP 40404 1839 42 lateral lateral JJ 40404 1839 43 valleys valley NNS 40404 1839 44 which which WDT 40404 1839 45 open open VBP 40404 1839 46 on on IN 40404 1839 47 their -PRON- PRP$ 40404 1839 48 main main JJ 40404 1839 49 valley valley NN 40404 1839 50 some some DT 40404 1839 51 distance distance NN 40404 1839 52 above above IN 40404 1839 53 its -PRON- PRP$ 40404 1839 54 floor floor NN 40404 1839 55 . . . 40404 1840 1 They -PRON- PRP 40404 1840 2 are be VBP 40404 1840 3 conspicuous conspicuous JJ 40404 1840 4 features feature NNS 40404 1840 5 of of IN 40404 1840 6 glacier glacier NN 40404 1840 7 troughs trough NNS 40404 1840 8 from from IN 40404 1840 9 which which WDT 40404 1840 10 the the DT 40404 1840 11 ice ice NN 40404 1840 12 has have VBZ 40404 1840 13 vanished vanish VBN 40404 1840 14 ; ; : 40404 1840 15 for for IN 40404 1840 16 the the DT 40404 1840 17 trunk trunk NN 40404 1840 18 glacier glacier NN 40404 1840 19 in in IN 40404 1840 20 widening widen VBG 40404 1840 21 and and CC 40404 1840 22 deepening deepen VBG 40404 1840 23 its -PRON- PRP$ 40404 1840 24 channel channel NN 40404 1840 25 cut cut VBD 40404 1840 26 its -PRON- PRP$ 40404 1840 27 bed bed NN 40404 1840 28 below below IN 40404 1840 29 the the DT 40404 1840 30 bottoms bottom NNS 40404 1840 31 of of IN 40404 1840 32 the the DT 40404 1840 33 lateral lateral JJ 40404 1840 34 valleys valley NNS 40404 1840 35 ( ( -LRB- 40404 1840 36 Fig fig NN 40404 1840 37 . . . 40404 1841 1 116 116 CD 40404 1841 2 ) ) -RRB- 40404 1841 3 . . . 40404 1842 1 Since since IN 40404 1842 2 the the DT 40404 1842 3 mouths mouth NNS 40404 1842 4 of of IN 40404 1842 5 hanging hanging NN 40404 1842 6 valleys valley NNS 40404 1842 7 are be VBP 40404 1842 8 suspended suspend VBN 40404 1842 9 on on IN 40404 1842 10 the the DT 40404 1842 11 walls wall NNS 40404 1842 12 of of IN 40404 1842 13 the the DT 40404 1842 14 glacier glacier NN 40404 1842 15 trough trough NNP 40404 1842 16 , , , 40404 1842 17 their -PRON- PRP$ 40404 1842 18 streams stream NNS 40404 1842 19 are be VBP 40404 1842 20 compelled compel VBN 40404 1842 21 to to TO 40404 1842 22 plunge plunge VB 40404 1842 23 down down RP 40404 1842 24 its -PRON- PRP$ 40404 1842 25 steep steep JJ 40404 1842 26 , , , 40404 1842 27 high high JJ 40404 1842 28 sides side NNS 40404 1842 29 in in IN 40404 1842 30 waterfalls waterfall NNS 40404 1842 31 . . . 40404 1843 1 Some some DT 40404 1843 2 of of IN 40404 1843 3 the the DT 40404 1843 4 loftiest lofty JJS 40404 1843 5 and and CC 40404 1843 6 most most RBS 40404 1843 7 beautiful beautiful JJ 40404 1843 8 waterfalls waterfall NNS 40404 1843 9 of of IN 40404 1843 10 the the DT 40404 1843 11 world world NN 40404 1843 12 leap leap NNP 40404 1843 13 from from IN 40404 1843 14 hanging hang VBG 40404 1843 15 valleys,--among valleys,--among , 40404 1843 16 them -PRON- PRP 40404 1843 17 the the DT 40404 1843 18 celebrated celebrated JJ 40404 1843 19 Staubbach Staubbach NNP 40404 1843 20 of of IN 40404 1843 21 the the DT 40404 1843 22 Lauterbrunnen Lauterbrunnen NNP 40404 1843 23 valley valley NN 40404 1843 24 of of IN 40404 1843 25 Switzerland Switzerland NNP 40404 1843 26 , , , 40404 1843 27 and and CC 40404 1843 28 those those DT 40404 1843 29 of of IN 40404 1843 30 the the DT 40404 1843 31 fjords fjord NNS 40404 1843 32 of of IN 40404 1843 33 Norway Norway NNP 40404 1843 34 and and CC 40404 1843 35 Alaska Alaska NNP 40404 1843 36 ( ( -LRB- 40404 1843 37 Fig Fig NNP 40404 1843 38 . . . 40404 1844 1 117 117 CD 40404 1844 2 ) ) -RRB- 40404 1844 3 . . . 40404 1845 1 [ [ -LRB- 40404 1845 2 Illustration illustration NN 40404 1845 3 : : : 40404 1845 4 Fig Fig NNP 40404 1845 5 . . . 40404 1846 1 117 117 CD 40404 1846 2 . . . 40404 1847 1 Hanging hang VBG 40404 1847 2 Valley Valley NNP 40404 1847 3 on on IN 40404 1847 4 the the DT 40404 1847 5 Wall Wall NNP 40404 1847 6 of of IN 40404 1847 7 a a DT 40404 1847 8 Fjord Fjord NNP 40404 1847 9 , , , 40404 1847 10 Norway Norway NNP 40404 1847 11 ] ] -RRB- 40404 1847 12 Hanging hang VBG 40404 1847 13 valleys valley NNS 40404 1847 14 are be VBP 40404 1847 15 found find VBN 40404 1847 16 also also RB 40404 1847 17 in in IN 40404 1847 18 river river NN 40404 1847 19 gorges gorge NNS 40404 1847 20 where where WRB 40404 1847 21 the the DT 40404 1847 22 smaller small JJR 40404 1847 23 tributaries tributary NNS 40404 1847 24 have have VBP 40404 1847 25 not not RB 40404 1847 26 been be VBN 40404 1847 27 able able JJ 40404 1847 28 to to TO 40404 1847 29 keep keep VB 40404 1847 30 pace pace NN 40404 1847 31 with with IN 40404 1847 32 a a DT 40404 1847 33 strong strong JJ 40404 1847 34 master master NN 40404 1847 35 stream stream NN 40404 1847 36 in in IN 40404 1847 37 cutting cut VBG 40404 1847 38 down down RP 40404 1847 39 their -PRON- PRP$ 40404 1847 40 beds bed NNS 40404 1847 41 . . . 40404 1848 1 In in IN 40404 1848 2 this this DT 40404 1848 3 case case NN 40404 1848 4 , , , 40404 1848 5 however however RB 40404 1848 6 , , , 40404 1848 7 they -PRON- PRP 40404 1848 8 are be VBP 40404 1848 9 a a DT 40404 1848 10 mark mark NN 40404 1848 11 of of IN 40404 1848 12 extreme extreme JJ 40404 1848 13 youth youth NN 40404 1848 14 ; ; , 40404 1848 15 for for IN 40404 1848 16 , , , 40404 1848 17 as as IN 40404 1848 18 the the DT 40404 1848 19 trunk trunk NN 40404 1848 20 stream stream NN 40404 1848 21 approaches approach VBZ 40404 1848 22 grade grade NN 40404 1848 23 and and CC 40404 1848 24 its -PRON- PRP$ 40404 1848 25 velocity velocity NN 40404 1848 26 and and CC 40404 1848 27 power power NN 40404 1848 28 to to TO 40404 1848 29 erode erode VB 40404 1848 30 its -PRON- PRP$ 40404 1848 31 bed bed NN 40404 1848 32 decrease decrease NN 40404 1848 33 , , , 40404 1848 34 the the DT 40404 1848 35 side side NN 40404 1848 36 streams stream NNS 40404 1848 37 soon soon RB 40404 1848 38 cut cut VBD 40404 1848 39 back back RP 40404 1848 40 their -PRON- PRP$ 40404 1848 41 falls fall NNS 40404 1848 42 and and CC 40404 1848 43 wear wear VB 40404 1848 44 their -PRON- PRP$ 40404 1848 45 beds bed NNS 40404 1848 46 at at IN 40404 1848 47 their -PRON- PRP$ 40404 1848 48 mouths mouth NNS 40404 1848 49 to to IN 40404 1848 50 a a DT 40404 1848 51 common common JJ 40404 1848 52 level level NN 40404 1848 53 with with IN 40404 1848 54 that that DT 40404 1848 55 of of IN 40404 1848 56 the the DT 40404 1848 57 main main JJ 40404 1848 58 river river NN 40404 1848 59 . . . 40404 1849 1 The the DT 40404 1849 2 Grand Grand NNP 40404 1849 3 Canyon Canyon NNP 40404 1849 4 of of IN 40404 1849 5 the the DT 40404 1849 6 Colorado Colorado NNP 40404 1849 7 must must MD 40404 1849 8 be be VB 40404 1849 9 reckoned reckon VBN 40404 1849 10 a a DT 40404 1849 11 young young JJ 40404 1849 12 valley valley NN 40404 1849 13 . . . 40404 1850 1 At at IN 40404 1850 2 its -PRON- PRP$ 40404 1850 3 base base NN 40404 1850 4 it -PRON- PRP 40404 1850 5 narrows narrow VBZ 40404 1850 6 to to IN 40404 1850 7 scarcely scarcely RB 40404 1850 8 more more JJR 40404 1850 9 than than IN 40404 1850 10 the the DT 40404 1850 11 width width NN 40404 1850 12 of of IN 40404 1850 13 the the DT 40404 1850 14 river river NN 40404 1850 15 , , , 40404 1850 16 and and CC 40404 1850 17 yet yet RB 40404 1850 18 its -PRON- PRP$ 40404 1850 19 tributaries tributary NNS 40404 1850 20 , , , 40404 1850 21 except except IN 40404 1850 22 the the DT 40404 1850 23 very very RB 40404 1850 24 smallest small JJS 40404 1850 25 , , , 40404 1850 26 enter enter VB 40404 1850 27 it -PRON- PRP 40404 1850 28 at at IN 40404 1850 29 a a DT 40404 1850 30 common common JJ 40404 1850 31 level level NN 40404 1850 32 . . . 40404 1851 1 Why why WRB 40404 1851 2 could could MD 40404 1851 3 not not RB 40404 1851 4 a a DT 40404 1851 5 wide wide RB 40404 1851 6 - - HYPH 40404 1851 7 floored floored JJ 40404 1851 8 valley valley NN 40404 1851 9 , , , 40404 1851 10 such such JJ 40404 1851 11 as as IN 40404 1851 12 a a DT 40404 1851 13 glacier glacier NN 40404 1851 14 trough trough NN 40404 1851 15 , , , 40404 1851 16 with with IN 40404 1851 17 hanging hang VBG 40404 1851 18 valleys valley NNS 40404 1851 19 opening open VBG 40404 1851 20 upon upon IN 40404 1851 21 it -PRON- PRP 40404 1851 22 , , , 40404 1851 23 be be VB 40404 1851 24 produced produce VBN 40404 1851 25 in in IN 40404 1851 26 the the DT 40404 1851 27 normal normal JJ 40404 1851 28 development development NN 40404 1851 29 of of IN 40404 1851 30 a a DT 40404 1851 31 river river NN 40404 1851 32 valley valley NN 40404 1851 33 ? ? . 40404 1852 1 = = NFP 40404 1852 2 The the DT 40404 1852 3 troughs trough NNS 40404 1852 4 of of IN 40404 1852 5 young young JJ 40404 1852 6 and and CC 40404 1852 7 of of IN 40404 1852 8 mature mature JJ 40404 1852 9 glaciers.= glaciers.= NNS 40404 1852 10 The the DT 40404 1852 11 features feature NNS 40404 1852 12 of of IN 40404 1852 13 a a DT 40404 1852 14 glacier glacier NN 40404 1852 15 trough trough NN 40404 1852 16 depend depend VBP 40404 1852 17 much much JJ 40404 1852 18 on on IN 40404 1852 19 the the DT 40404 1852 20 length length NN 40404 1852 21 of of IN 40404 1852 22 time time NN 40404 1852 23 the the DT 40404 1852 24 preexisting preexisting NN 40404 1852 25 valley valley NN 40404 1852 26 was be VBD 40404 1852 27 occupied occupy VBN 40404 1852 28 with with IN 40404 1852 29 ice ice NN 40404 1852 30 . . . 40404 1853 1 During during IN 40404 1853 2 the the DT 40404 1853 3 infancy infancy NN 40404 1853 4 of of IN 40404 1853 5 a a DT 40404 1853 6 glacier glacier NN 40404 1853 7 , , , 40404 1853 8 we -PRON- PRP 40404 1853 9 may may MD 40404 1853 10 believe believe VB 40404 1853 11 , , , 40404 1853 12 the the DT 40404 1853 13 spurs spur NNS 40404 1853 14 of of IN 40404 1853 15 the the DT 40404 1853 16 valley valley NN 40404 1853 17 which which WDT 40404 1853 18 it -PRON- PRP 40404 1853 19 fills fill VBZ 40404 1853 20 are be VBP 40404 1853 21 but but CC 40404 1853 22 little little JJ 40404 1853 23 blunted blunted JJ 40404 1853 24 and and CC 40404 1853 25 its -PRON- PRP$ 40404 1853 26 bed bed NN 40404 1853 27 is be VBZ 40404 1853 28 but but CC 40404 1853 29 little little JJ 40404 1853 30 broken break VBN 40404 1853 31 by by IN 40404 1853 32 steps step NNS 40404 1853 33 . . . 40404 1854 1 In in IN 40404 1854 2 youth youth NN 40404 1854 3 the the DT 40404 1854 4 glacier glacier NN 40404 1854 5 develops develop VBZ 40404 1854 6 icefalls icefall NNS 40404 1854 7 , , , 40404 1854 8 as as IN 40404 1854 9 a a DT 40404 1854 10 river river NN 40404 1854 11 in in IN 40404 1854 12 youth youth NN 40404 1854 13 develops develop VBZ 40404 1854 14 waterfalls waterfall NNS 40404 1854 15 , , , 40404 1854 16 and and CC 40404 1854 17 its -PRON- PRP$ 40404 1854 18 bed bed NN 40404 1854 19 becomes become VBZ 40404 1854 20 terraced terrace VBN 40404 1854 21 with with IN 40404 1854 22 great great JJ 40404 1854 23 stairs stair NNS 40404 1854 24 . . . 40404 1855 1 The the DT 40404 1855 2 mature mature JJ 40404 1855 3 glacier glacier NN 40404 1855 4 , , , 40404 1855 5 like like IN 40404 1855 6 the the DT 40404 1855 7 mature mature NNP 40404 1855 8 river river NN 40404 1855 9 , , , 40404 1855 10 has have VBZ 40404 1855 11 effaced efface VBN 40404 1855 12 its -PRON- PRP$ 40404 1855 13 falls fall NNS 40404 1855 14 and and CC 40404 1855 15 smoothed smooth VBD 40404 1855 16 its -PRON- PRP$ 40404 1855 17 bed bed NN 40404 1855 18 to to IN 40404 1855 19 grade grade NN 40404 1855 20 . . . 40404 1856 1 It -PRON- PRP 40404 1856 2 has have VBZ 40404 1856 3 also also RB 40404 1856 4 worn wear VBN 40404 1856 5 back back RP 40404 1856 6 the the DT 40404 1856 7 projecting projecting NN 40404 1856 8 spurs spur NNS 40404 1856 9 of of IN 40404 1856 10 its -PRON- PRP$ 40404 1856 11 valley valley NN 40404 1856 12 , , , 40404 1856 13 making make VBG 40404 1856 14 itself -PRON- PRP 40404 1856 15 a a DT 40404 1856 16 wide wide JJ 40404 1856 17 channel channel NN 40404 1856 18 with with IN 40404 1856 19 smooth smooth JJ 40404 1856 20 sides side NNS 40404 1856 21 . . . 40404 1857 1 The the DT 40404 1857 2 bed bed NN 40404 1857 3 of of IN 40404 1857 4 a a DT 40404 1857 5 mature mature JJ 40404 1857 6 glacier glacier NN 40404 1857 7 may may MD 40404 1857 8 form form VB 40404 1857 9 a a DT 40404 1857 10 long long JJ 40404 1857 11 basin basin NN 40404 1857 12 , , , 40404 1857 13 since since IN 40404 1857 14 it -PRON- PRP 40404 1857 15 abrades abrade VBZ 40404 1857 16 most most JJS 40404 1857 17 in in IN 40404 1857 18 its -PRON- PRP$ 40404 1857 19 upper upper JJ 40404 1857 20 and and CC 40404 1857 21 middle middle JJ 40404 1857 22 course course NN 40404 1857 23 , , , 40404 1857 24 where where WRB 40404 1857 25 its -PRON- PRP$ 40404 1857 26 weight weight NN 40404 1857 27 and and CC 40404 1857 28 motion motion NN 40404 1857 29 are be VBP 40404 1857 30 the the DT 40404 1857 31 greatest great JJS 40404 1857 32 . . . 40404 1858 1 Near near IN 40404 1858 2 the the DT 40404 1858 3 terminus terminus NN 40404 1858 4 , , , 40404 1858 5 where where WRB 40404 1858 6 weight weight NN 40404 1858 7 and and CC 40404 1858 8 motion motion NN 40404 1858 9 are be VBP 40404 1858 10 the the DT 40404 1858 11 least least JJS 40404 1858 12 , , , 40404 1858 13 it -PRON- PRP 40404 1858 14 erodes erode VBZ 40404 1858 15 least least JJS 40404 1858 16 , , , 40404 1858 17 and and CC 40404 1858 18 may may MD 40404 1858 19 instead instead RB 40404 1858 20 deposit deposit VB 40404 1858 21 a a DT 40404 1858 22 sheet sheet NN 40404 1858 23 of of IN 40404 1858 24 ground ground NN 40404 1858 25 moraine moraine VBP 40404 1858 26 , , , 40404 1858 27 much much RB 40404 1858 28 as as IN 40404 1858 29 a a DT 40404 1858 30 river river NN 40404 1858 31 builds build VBZ 40404 1858 32 a a DT 40404 1858 33 flood flood NN 40404 1858 34 plain plain JJ 40404 1858 35 in in IN 40404 1858 36 the the DT 40404 1858 37 same same JJ 40404 1858 38 part part NN 40404 1858 39 of of IN 40404 1858 40 its -PRON- PRP$ 40404 1858 41 course course NN 40404 1858 42 as as IN 40404 1858 43 it -PRON- PRP 40404 1858 44 approaches approach VBZ 40404 1858 45 maturity maturity NN 40404 1858 46 . . . 40404 1859 1 The the DT 40404 1859 2 bed bed NN 40404 1859 3 of of IN 40404 1859 4 a a DT 40404 1859 5 mature mature JJ 40404 1859 6 glacier glacier NN 40404 1859 7 thus thus RB 40404 1859 8 tends tend VBZ 40404 1859 9 to to TO 40404 1859 10 take take VB 40404 1859 11 the the DT 40404 1859 12 form form NN 40404 1859 13 of of IN 40404 1859 14 a a DT 40404 1859 15 long long JJ 40404 1859 16 , , , 40404 1859 17 relatively relatively RB 40404 1859 18 narrow narrow JJ 40404 1859 19 basin basin NN 40404 1859 20 , , , 40404 1859 21 across across IN 40404 1859 22 whose whose WP$ 40404 1859 23 lower low JJR 40404 1859 24 end end NN 40404 1859 25 may may MD 40404 1859 26 be be VB 40404 1859 27 stretched stretch VBN 40404 1859 28 the the DT 40404 1859 29 dam dam NN 40404 1859 30 of of IN 40404 1859 31 the the DT 40404 1859 32 terminal terminal JJ 40404 1859 33 moraine moraine NN 40404 1859 34 . . . 40404 1860 1 On on IN 40404 1860 2 the the DT 40404 1860 3 disappearance disappearance NN 40404 1860 4 of of IN 40404 1860 5 the the DT 40404 1860 6 ice ice NN 40404 1860 7 the the DT 40404 1860 8 basin basin NN 40404 1860 9 is be VBZ 40404 1860 10 rilled rille VBN 40404 1860 11 with with IN 40404 1860 12 a a DT 40404 1860 13 long long JJ 40404 1860 14 , , , 40404 1860 15 narrow narrow JJ 40404 1860 16 lake lake NN 40404 1860 17 , , , 40404 1860 18 such such JJ 40404 1860 19 as as IN 40404 1860 20 Lake Lake NNP 40404 1860 21 Chelan Chelan NNP 40404 1860 22 in in IN 40404 1860 23 Washington Washington NNP 40404 1860 24 and and CC 40404 1860 25 many many JJ 40404 1860 26 of of IN 40404 1860 27 the the DT 40404 1860 28 lakes lake NNS 40404 1860 29 in in IN 40404 1860 30 the the DT 40404 1860 31 Highlands Highlands NNPS 40404 1860 32 of of IN 40404 1860 33 Scotland Scotland NNP 40404 1860 34 . . . 40404 1861 1 Piedmont Piedmont NNP 40404 1861 2 glaciers glacier NNS 40404 1861 3 apparently apparently RB 40404 1861 4 erode erode VBP 40404 1861 5 but but CC 40404 1861 6 little little JJ 40404 1861 7 . . . 40404 1862 1 Beneath beneath IN 40404 1862 2 their -PRON- PRP$ 40404 1862 3 lake lake NN 40404 1862 4 - - HYPH 40404 1862 5 like like JJ 40404 1862 6 expanse expanse NN 40404 1862 7 of of IN 40404 1862 8 sluggish sluggish JJ 40404 1862 9 or or CC 40404 1862 10 stagnant stagnant JJ 40404 1862 11 ice ice NN 40404 1862 12 a a DT 40404 1862 13 broad broad JJ 40404 1862 14 sheet sheet NN 40404 1862 15 of of IN 40404 1862 16 ground ground NN 40404 1862 17 moraine moraine NNP 40404 1862 18 is be VBZ 40404 1862 19 probably probably RB 40404 1862 20 being be VBG 40404 1862 21 deposited deposit VBN 40404 1862 22 . . . 40404 1863 1 Cirques cirque NNS 40404 1863 2 and and CC 40404 1863 3 glaciated glaciate VBN 40404 1863 4 valleys valley NNS 40404 1863 5 rapidly rapidly RB 40404 1863 6 lose lose VBP 40404 1863 7 their -PRON- PRP$ 40404 1863 8 characteristic characteristic JJ 40404 1863 9 forms form NNS 40404 1863 10 after after IN 40404 1863 11 the the DT 40404 1863 12 ice ice NN 40404 1863 13 has have VBZ 40404 1863 14 withdrawn withdraw VBN 40404 1863 15 . . . 40404 1864 1 The the DT 40404 1864 2 weather weather NN 40404 1864 3 destroys destroy VBZ 40404 1864 4 all all DT 40404 1864 5 smoothed smooth VBN 40404 1864 6 , , , 40404 1864 7 polished polished JJ 40404 1864 8 , , , 40404 1864 9 and and CC 40404 1864 10 scored score VBN 40404 1864 11 surfaces surface NNS 40404 1864 12 which which WDT 40404 1864 13 are be VBP 40404 1864 14 not not RB 40404 1864 15 protected protect VBN 40404 1864 16 beneath beneath IN 40404 1864 17 glacial glacial JJ 40404 1864 18 deposits deposit NNS 40404 1864 19 . . . 40404 1865 1 The the DT 40404 1865 2 over over RB 40404 1865 3 - - HYPH 40404 1865 4 steepened steepened JJ 40404 1865 5 sides side NNS 40404 1865 6 of of IN 40404 1865 7 the the DT 40404 1865 8 trough trough NN 40404 1865 9 are be VBP 40404 1865 10 graded grade VBN 40404 1865 11 by by IN 40404 1865 12 landslips landslip NNS 40404 1865 13 , , , 40404 1865 14 by by IN 40404 1865 15 talus talus NN 40404 1865 16 slopes slope NNS 40404 1865 17 , , , 40404 1865 18 and and CC 40404 1865 19 by by IN 40404 1865 20 alluvial alluvial JJ 40404 1865 21 cones cone NNS 40404 1865 22 . . . 40404 1866 1 Morainic morainic JJ 40404 1866 2 heaps heap NNS 40404 1866 3 of of IN 40404 1866 4 drift drift NN 40404 1866 5 are be VBP 40404 1866 6 dissected dissect VBN 40404 1866 7 and and CC 40404 1866 8 carried carry VBN 40404 1866 9 away away RB 40404 1866 10 . . . 40404 1867 1 Hanging hang VBG 40404 1867 2 valleys valley NNS 40404 1867 3 and and CC 40404 1867 4 the the DT 40404 1867 5 irregular irregular JJ 40404 1867 6 bed bed NN 40404 1867 7 of of IN 40404 1867 8 the the DT 40404 1867 9 trough trough NN 40404 1867 10 are be VBP 40404 1867 11 both both DT 40404 1867 12 worn wear VBN 40404 1867 13 down down RP 40404 1867 14 to to IN 40404 1867 15 grade grade NN 40404 1867 16 by by IN 40404 1867 17 the the DT 40404 1867 18 streams stream NNS 40404 1867 19 which which WDT 40404 1867 20 now now RB 40404 1867 21 occupy occupy VBP 40404 1867 22 them -PRON- PRP 40404 1867 23 . . . 40404 1868 1 The the DT 40404 1868 2 length length NN 40404 1868 3 of of IN 40404 1868 4 time time NN 40404 1868 5 since since IN 40404 1868 6 the the DT 40404 1868 7 retreat retreat NN 40404 1868 8 of of IN 40404 1868 9 the the DT 40404 1868 10 ice ice NN 40404 1868 11 from from IN 40404 1868 12 a a DT 40404 1868 13 mountain mountain NN 40404 1868 14 valley valley NN 40404 1868 15 may may MD 40404 1868 16 thus thus RB 40404 1868 17 be be VB 40404 1868 18 estimated estimate VBN 40404 1868 19 by by IN 40404 1868 20 the the DT 40404 1868 21 degree degree NN 40404 1868 22 to to TO 40404 1868 23 which which WDT 40404 1868 24 the the DT 40404 1868 25 destruction destruction NN 40404 1868 26 of of IN 40404 1868 27 the the DT 40404 1868 28 characteristic characteristic JJ 40404 1868 29 features feature NNS 40404 1868 30 of of IN 40404 1868 31 the the DT 40404 1868 32 glacier glacier NN 40404 1868 33 trough trough NN 40404 1868 34 has have VBZ 40404 1868 35 been be VBN 40404 1868 36 carried carry VBN 40404 1868 37 . . . 40404 1869 1 In in IN 40404 1869 2 Figure Figure NNP 40404 1869 3 104 104 CD 40404 1869 4 what what WDT 40404 1869 5 characteristics characteristic NNS 40404 1869 6 of of IN 40404 1869 7 a a DT 40404 1869 8 glacier glacier NN 40404 1869 9 trough trough NN 40404 1869 10 do do VBP 40404 1869 11 you -PRON- PRP 40404 1869 12 notice notice VB 40404 1869 13 ? ? . 40404 1870 1 What what WDT 40404 1870 2 inference inference NN 40404 1870 3 do do VBP 40404 1870 4 you -PRON- PRP 40404 1870 5 draw draw VB 40404 1870 6 as as IN 40404 1870 7 to to IN 40404 1870 8 the the DT 40404 1870 9 former former JJ 40404 1870 10 thickness thickness NN 40404 1870 11 of of IN 40404 1870 12 the the DT 40404 1870 13 glacier glacier NN 40404 1870 14 ? ? . 40404 1871 1 Name name VB 40404 1871 2 all all PDT 40404 1871 3 the the DT 40404 1871 4 evidences evidence NNS 40404 1871 5 you -PRON- PRP 40404 1871 6 would would MD 40404 1871 7 expect expect VB 40404 1871 8 to to TO 40404 1871 9 find find VB 40404 1871 10 to to TO 40404 1871 11 prove prove VB 40404 1871 12 the the DT 40404 1871 13 fact fact NN 40404 1871 14 that that IN 40404 1871 15 in in IN 40404 1871 16 the the DT 40404 1871 17 recent recent JJ 40404 1871 18 geological geological JJ 40404 1871 19 past past IN 40404 1871 20 the the DT 40404 1871 21 valleys valley NNS 40404 1871 22 of of IN 40404 1871 23 the the DT 40404 1871 24 Alps Alps NNP 40404 1871 25 contained contain VBD 40404 1871 26 far far RB 40404 1871 27 larger large JJR 40404 1871 28 glaciers glacier NNS 40404 1871 29 than than IN 40404 1871 30 at at IN 40404 1871 31 present present NN 40404 1871 32 , , , 40404 1871 33 and and CC 40404 1871 34 that that IN 40404 1871 35 on on IN 40404 1871 36 the the DT 40404 1871 37 north north NN 40404 1871 38 of of IN 40404 1871 39 the the DT 40404 1871 40 Alps Alps NNP 40404 1871 41 the the DT 40404 1871 42 ice ice NN 40404 1871 43 streams stream NNS 40404 1871 44 united unite VBN 40404 1871 45 in in IN 40404 1871 46 a a DT 40404 1871 47 piedmont piedmont NNP 40404 1871 48 glacier glacier NN 40404 1871 49 which which WDT 40404 1871 50 extended extend VBD 40404 1871 51 across across IN 40404 1871 52 the the DT 40404 1871 53 plains plain NNS 40404 1871 54 of of IN 40404 1871 55 Switzerland Switzerland NNP 40404 1871 56 to to IN 40404 1871 57 the the DT 40404 1871 58 sides side NNS 40404 1871 59 of of IN 40404 1871 60 the the DT 40404 1871 61 Jura Jura NNP 40404 1871 62 Mountains Mountains NNPS 40404 1871 63 . . . 40404 1872 1 = = NFP 40404 1872 2 The the DT 40404 1872 3 relative relative JJ 40404 1872 4 importance importance NN 40404 1872 5 of of IN 40404 1872 6 glaciers glacier NNS 40404 1872 7 and and CC 40404 1872 8 of of IN 40404 1872 9 rivers.= rivers.= NNS 40404 1872 10 Powerful powerful JJ 40404 1872 11 as as IN 40404 1872 12 glaciers glacier NNS 40404 1872 13 are be VBP 40404 1872 14 , , , 40404 1872 15 and and CC 40404 1872 16 marked mark VBN 40404 1872 17 as as IN 40404 1872 18 are be VBP 40404 1872 19 the the DT 40404 1872 20 land land NN 40404 1872 21 forms form NNS 40404 1872 22 which which WDT 40404 1872 23 they -PRON- PRP 40404 1872 24 produce produce VBP 40404 1872 25 , , , 40404 1872 26 it -PRON- PRP 40404 1872 27 is be VBZ 40404 1872 28 easy easy JJ 40404 1872 29 to to TO 40404 1872 30 exaggerate exaggerate VB 40404 1872 31 their -PRON- PRP$ 40404 1872 32 geological geological JJ 40404 1872 33 importance importance NN 40404 1872 34 as as IN 40404 1872 35 compared compare VBN 40404 1872 36 with with IN 40404 1872 37 rivers river NNS 40404 1872 38 . . . 40404 1873 1 Under under IN 40404 1873 2 present present JJ 40404 1873 3 climatic climatic JJ 40404 1873 4 conditions condition NNS 40404 1873 5 they -PRON- PRP 40404 1873 6 are be VBP 40404 1873 7 confined confine VBN 40404 1873 8 to to IN 40404 1873 9 lofty lofty JJ 40404 1873 10 mountains mountain NNS 40404 1873 11 or or CC 40404 1873 12 polar polar JJ 40404 1873 13 lands land NNS 40404 1873 14 . . . 40404 1874 1 Polar polar JJ 40404 1874 2 ice ice NN 40404 1874 3 sheets sheet NNS 40404 1874 4 are be VBP 40404 1874 5 permanent permanent JJ 40404 1874 6 only only RB 40404 1874 7 so so RB 40404 1874 8 long long RB 40404 1874 9 as as IN 40404 1874 10 the the DT 40404 1874 11 lands land NNS 40404 1874 12 remain remain VBP 40404 1874 13 on on IN 40404 1874 14 which which WDT 40404 1874 15 they -PRON- PRP 40404 1874 16 rest rest VBP 40404 1874 17 . . . 40404 1875 1 Mountain mountain NN 40404 1875 2 glaciers glacier NNS 40404 1875 3 can can MD 40404 1875 4 stay stay VB 40404 1875 5 only only RB 40404 1875 6 the the DT 40404 1875 7 brief brief JJ 40404 1875 8 time time NN 40404 1875 9 during during IN 40404 1875 10 which which WDT 40404 1875 11 the the DT 40404 1875 12 ranges range NNS 40404 1875 13 continue continue VBP 40404 1875 14 young young JJ 40404 1875 15 and and CC 40404 1875 16 high high JJ 40404 1875 17 . . . 40404 1876 1 As as IN 40404 1876 2 lofty lofty JJ 40404 1876 3 mountains mountain NNS 40404 1876 4 , , , 40404 1876 5 such such JJ 40404 1876 6 as as IN 40404 1876 7 the the DT 40404 1876 8 Selkirks Selkirks NNPS 40404 1876 9 and and CC 40404 1876 10 the the DT 40404 1876 11 Alps Alps NNPS 40404 1876 12 , , , 40404 1876 13 are be VBP 40404 1876 14 lowered lower VBN 40404 1876 15 by by IN 40404 1876 16 frost frost NN 40404 1876 17 and and CC 40404 1876 18 glacier glacier NN 40404 1876 19 ice ice NN 40404 1876 20 , , , 40404 1876 21 the the DT 40404 1876 22 snowfall snowfall NN 40404 1876 23 will will MD 40404 1876 24 decrease decrease VB 40404 1876 25 , , , 40404 1876 26 the the DT 40404 1876 27 line line NN 40404 1876 28 of of IN 40404 1876 29 permanent permanent JJ 40404 1876 30 snow snow NN 40404 1876 31 will will MD 40404 1876 32 rise rise VB 40404 1876 33 , , , 40404 1876 34 and and CC 40404 1876 35 as as IN 40404 1876 36 the the DT 40404 1876 37 mountain mountain NN 40404 1876 38 hollows hollow VBZ 40404 1876 39 in in IN 40404 1876 40 which which WDT 40404 1876 41 snow snow NN 40404 1876 42 may may MD 40404 1876 43 gather gather VB 40404 1876 44 are be VBP 40404 1876 45 worn wear VBN 40404 1876 46 beneath beneath IN 40404 1876 47 the the DT 40404 1876 48 snow snow NN 40404 1876 49 line line NN 40404 1876 50 , , , 40404 1876 51 the the DT 40404 1876 52 glaciers glacier NNS 40404 1876 53 must must MD 40404 1876 54 disappear disappear VB 40404 1876 55 . . . 40404 1877 1 Under under IN 40404 1877 2 present present JJ 40404 1877 3 climatic climatic JJ 40404 1877 4 conditions condition NNS 40404 1877 5 the the DT 40404 1877 6 work work NN 40404 1877 7 of of IN 40404 1877 8 glaciers glacier NNS 40404 1877 9 is be VBZ 40404 1877 10 therefore therefore RB 40404 1877 11 both both CC 40404 1877 12 local local JJ 40404 1877 13 and and CC 40404 1877 14 of of IN 40404 1877 15 short short JJ 40404 1877 16 duration duration NN 40404 1877 17 . . . 40404 1878 1 [ [ -LRB- 40404 1878 2 Illustration illustration NN 40404 1878 3 : : : 40404 1878 4 Fig Fig NNP 40404 1878 5 . . . 40404 1879 1 118 118 CD 40404 1879 2 . . . 40404 1880 1 Longitudinal Longitudinal NNP 40404 1880 2 Section Section NNP 40404 1880 3 of of IN 40404 1880 4 a a DT 40404 1880 5 Tide Tide NNP 40404 1880 6 Glacier Glacier NNP 40404 1880 7 occupying occupy VBG 40404 1880 8 a a DT 40404 1880 9 Fjord Fjord NNP 40404 1880 10 and and CC 40404 1880 11 discharging discharge VBG 40404 1880 12 Icebergs Icebergs NNP 40404 1880 13 Dotted Dotted NNP 40404 1880 14 Line Line NNP 40404 1880 15 , , , 40404 1880 16 sea sea NN 40404 1880 17 level level NN 40404 1880 18 ] ] -RRB- 40404 1880 19 Even even RB 40404 1880 20 the the DT 40404 1880 21 glacial glacial JJ 40404 1880 22 epoch epoch NN 40404 1880 23 , , , 40404 1880 24 during during IN 40404 1880 25 which which WDT 40404 1880 26 vast vast JJ 40404 1880 27 ice ice NN 40404 1880 28 sheets sheet NNS 40404 1880 29 deposited deposit VBD 40404 1880 30 drift drift NN 40404 1880 31 over over IN 40404 1880 32 northeastern northeastern JJ 40404 1880 33 North North NNP 40404 1880 34 America America NNP 40404 1880 35 , , , 40404 1880 36 must must MD 40404 1880 37 have have VB 40404 1880 38 been be VBN 40404 1880 39 brief brief JJ 40404 1880 40 as as RB 40404 1880 41 well well RB 40404 1880 42 as as IN 40404 1880 43 recent recent JJ 40404 1880 44 , , , 40404 1880 45 for for IN 40404 1880 46 many many JJ 40404 1880 47 lofty lofty JJ 40404 1880 48 mountains mountain NNS 40404 1880 49 , , , 40404 1880 50 such such JJ 40404 1880 51 as as IN 40404 1880 52 the the DT 40404 1880 53 Rockies Rockies NNPS 40404 1880 54 and and CC 40404 1880 55 the the DT 40404 1880 56 Alps Alps NNPS 40404 1880 57 , , , 40404 1880 58 still still RB 40404 1880 59 bear bear VBP 40404 1880 60 the the DT 40404 1880 61 marks mark NNS 40404 1880 62 of of IN 40404 1880 63 great great JJ 40404 1880 64 glaciers glacier NNS 40404 1880 65 which which WDT 40404 1880 66 then then RB 40404 1880 67 filled fill VBD 40404 1880 68 their -PRON- PRP$ 40404 1880 69 valleys valley NNS 40404 1880 70 . . . 40404 1881 1 Had have VBD 40404 1881 2 the the DT 40404 1881 3 glacial glacial JJ 40404 1881 4 epoch epoch NN 40404 1881 5 been be VBN 40404 1881 6 long long JJ 40404 1881 7 , , , 40404 1881 8 as as IN 40404 1881 9 the the DT 40404 1881 10 earth earth NN 40404 1881 11 counts count VBZ 40404 1881 12 time time NN 40404 1881 13 , , , 40404 1881 14 these these DT 40404 1881 15 mountains mountain NNS 40404 1881 16 would would MD 40404 1881 17 have have VB 40404 1881 18 been be VBN 40404 1881 19 worn wear VBN 40404 1881 20 low low JJ 40404 1881 21 by by IN 40404 1881 22 ice ice NN 40404 1881 23 ; ; : 40404 1881 24 had have VBD 40404 1881 25 the the DT 40404 1881 26 epoch epoch NN 40404 1881 27 been be VBN 40404 1881 28 remote remote JJ 40404 1881 29 , , , 40404 1881 30 the the DT 40404 1881 31 marks mark NNS 40404 1881 32 of of IN 40404 1881 33 glaciation glaciation NN 40404 1881 34 would would MD 40404 1881 35 already already RB 40404 1881 36 have have VB 40404 1881 37 been be VBN 40404 1881 38 largely largely RB 40404 1881 39 destroyed destroy VBN 40404 1881 40 by by IN 40404 1881 41 other other JJ 40404 1881 42 agencies agency NNS 40404 1881 43 . . . 40404 1882 1 On on IN 40404 1882 2 the the DT 40404 1882 3 other other JJ 40404 1882 4 hand hand NN 40404 1882 5 , , , 40404 1882 6 rivers river NNS 40404 1882 7 are be VBP 40404 1882 8 well well RB 40404 1882 9 - - HYPH 40404 1882 10 nigh nigh NN 40404 1882 11 universally universally RB 40404 1882 12 at at IN 40404 1882 13 work work NN 40404 1882 14 over over IN 40404 1882 15 the the DT 40404 1882 16 land land NN 40404 1882 17 surfaces surface NNS 40404 1882 18 of of IN 40404 1882 19 the the DT 40404 1882 20 globe globe NN 40404 1882 21 , , , 40404 1882 22 and and CC 40404 1882 23 ever ever RB 40404 1882 24 since since IN 40404 1882 25 the the DT 40404 1882 26 dry dry JJ 40404 1882 27 land land NN 40404 1882 28 appeared appear VBD 40404 1882 29 they -PRON- PRP 40404 1882 30 have have VBP 40404 1882 31 been be VBN 40404 1882 32 constantly constantly RB 40404 1882 33 engaged engage VBN 40404 1882 34 in in IN 40404 1882 35 leveling level VBG 40404 1882 36 the the DT 40404 1882 37 continents continent NNS 40404 1882 38 and and CC 40404 1882 39 in in IN 40404 1882 40 delivering deliver VBG 40404 1882 41 to to IN 40404 1882 42 the the DT 40404 1882 43 seas sea NNS 40404 1882 44 the the DT 40404 1882 45 waste waste NN 40404 1882 46 which which WDT 40404 1882 47 there there EX 40404 1882 48 is be VBZ 40404 1882 49 built build VBN 40404 1882 50 into into IN 40404 1882 51 the the DT 40404 1882 52 stratified stratify VBN 40404 1882 53 rocks rock NNS 40404 1882 54 . . . 40404 1883 1 = = NFP 40404 1883 2 Icebergs.= Icebergs.= NNP 40404 1883 3 Tide Tide NNP 40404 1883 4 glaciers glacier NNS 40404 1883 5 , , , 40404 1883 6 such such JJ 40404 1883 7 as as IN 40404 1883 8 those those DT 40404 1883 9 of of IN 40404 1883 10 Greenland Greenland NNP 40404 1883 11 and and CC 40404 1883 12 Alaska Alaska NNP 40404 1883 13 , , , 40404 1883 14 are be VBP 40404 1883 15 able able JJ 40404 1883 16 to to TO 40404 1883 17 excavate excavate VB 40404 1883 18 their -PRON- PRP$ 40404 1883 19 beds bed NNS 40404 1883 20 to to IN 40404 1883 21 a a DT 40404 1883 22 considerable considerable JJ 40404 1883 23 distance distance NN 40404 1883 24 below below IN 40404 1883 25 sea sea NN 40404 1883 26 level level NN 40404 1883 27 . . . 40404 1884 1 From from IN 40404 1884 2 their -PRON- PRP$ 40404 1884 3 fronts front NNS 40404 1884 4 the the DT 40404 1884 5 buoyancy buoyancy NN 40404 1884 6 of of IN 40404 1884 7 sea sea NN 40404 1884 8 water water NN 40404 1884 9 raises raise VBZ 40404 1884 10 and and CC 40404 1884 11 breaks break VBZ 40404 1884 12 away away RB 40404 1884 13 great great JJ 40404 1884 14 masses masse NNS 40404 1884 15 of of IN 40404 1884 16 ice ice NN 40404 1884 17 which which WDT 40404 1884 18 float float VBP 40404 1884 19 out out RP 40404 1884 20 to to IN 40404 1884 21 sea sea NN 40404 1884 22 as as IN 40404 1884 23 icebergs iceberg NNS 40404 1884 24 . . . 40404 1885 1 Only only RB 40404 1885 2 about about RB 40404 1885 3 one one CD 40404 1885 4 seventh seventh NN 40404 1885 5 of of IN 40404 1885 6 a a DT 40404 1885 7 mass mass NN 40404 1885 8 of of IN 40404 1885 9 glacier glacier NN 40404 1885 10 ice ice NN 40404 1885 11 floats float NNS 40404 1885 12 above above IN 40404 1885 13 the the DT 40404 1885 14 surface surface NN 40404 1885 15 , , , 40404 1885 16 and and CC 40404 1885 17 a a DT 40404 1885 18 berg berg NNP 40404 1885 19 three three CD 40404 1885 20 hundred hundred CD 40404 1885 21 feet foot NNS 40404 1885 22 high high JJ 40404 1885 23 may may MD 40404 1885 24 be be VB 40404 1885 25 estimated estimate VBN 40404 1885 26 to to TO 40404 1885 27 have have VB 40404 1885 28 been be VBN 40404 1885 29 detached detach VBN 40404 1885 30 from from IN 40404 1885 31 a a DT 40404 1885 32 glacier glacier NN 40404 1885 33 not not RB 40404 1885 34 less less JJR 40404 1885 35 than than IN 40404 1885 36 two two CD 40404 1885 37 thousand thousand CD 40404 1885 38 feet foot NNS 40404 1885 39 thick thick JJ 40404 1885 40 where where WRB 40404 1885 41 it -PRON- PRP 40404 1885 42 met meet VBD 40404 1885 43 the the DT 40404 1885 44 sea sea NN 40404 1885 45 . . . 40404 1886 1 Icebergs iceberg NNS 40404 1886 2 transport transport VBP 40404 1886 3 on on IN 40404 1886 4 their -PRON- PRP$ 40404 1886 5 long long JJ 40404 1886 6 journeys journey NNS 40404 1886 7 whatever whatever WDT 40404 1886 8 drift drift NN 40404 1886 9 they -PRON- PRP 40404 1886 10 may may MD 40404 1886 11 have have VB 40404 1886 12 carried carry VBN 40404 1886 13 when when WRB 40404 1886 14 part part NN 40404 1886 15 of of IN 40404 1886 16 the the DT 40404 1886 17 glacier glacier NN 40404 1886 18 , , , 40404 1886 19 and and CC 40404 1886 20 scatter scatter VB 40404 1886 21 it -PRON- PRP 40404 1886 22 , , , 40404 1886 23 as as IN 40404 1886 24 they -PRON- PRP 40404 1886 25 melt melt VBP 40404 1886 26 , , , 40404 1886 27 over over IN 40404 1886 28 the the DT 40404 1886 29 ocean ocean NN 40404 1886 30 floor floor NN 40404 1886 31 . . . 40404 1887 1 In in IN 40404 1887 2 this this DT 40404 1887 3 way way NN 40404 1887 4 pebbles pebble VBZ 40404 1887 5 torn tear VBN 40404 1887 6 by by IN 40404 1887 7 the the DT 40404 1887 8 inland inland JJ 40404 1887 9 ice ice NN 40404 1887 10 from from IN 40404 1887 11 the the DT 40404 1887 12 rocks rock NNS 40404 1887 13 of of IN 40404 1887 14 the the DT 40404 1887 15 interior interior NN 40404 1887 16 of of IN 40404 1887 17 Greenland Greenland NNP 40404 1887 18 and and CC 40404 1887 19 glaciated glaciate VBD 40404 1887 20 during during IN 40404 1887 21 their -PRON- PRP$ 40404 1887 22 carriage carriage NN 40404 1887 23 in in IN 40404 1887 24 the the DT 40404 1887 25 ground ground NN 40404 1887 26 moraine moraine NNP 40404 1887 27 are be VBP 40404 1887 28 dropped drop VBN 40404 1887 29 at at IN 40404 1887 30 last last JJ 40404 1887 31 among among IN 40404 1887 32 the the DT 40404 1887 33 oozes ooze NNS 40404 1887 34 of of IN 40404 1887 35 the the DT 40404 1887 36 bottom bottom NN 40404 1887 37 of of IN 40404 1887 38 the the DT 40404 1887 39 North North NNP 40404 1887 40 Atlantic Atlantic NNP 40404 1887 41 . . . 40404 1888 1 CHAPTER CHAPTER NNP 40404 1888 2 VI VI NNP 40404 1888 3 THE the DT 40404 1888 4 WORK work NN 40404 1888 5 OF of IN 40404 1888 6 THE the DT 40404 1888 7 WIND WIND NNP 40404 1888 8 [ [ -LRB- 40404 1888 9 Illustration illustration NN 40404 1888 10 : : : 40404 1888 11 Fig Fig NNP 40404 1888 12 . . . 40404 1889 1 119 119 CD 40404 1889 2 . . . 40404 1890 1 A a DT 40404 1890 2 sandy sandy JJ 40404 1890 3 Region region NN 40404 1890 4 in in IN 40404 1890 5 a a DT 40404 1890 6 Desert Desert NNP 40404 1890 7 , , , 40404 1890 8 the the DT 40404 1890 9 Sahara Sahara NNP 40404 1890 10 ] ] -RRB- 40404 1890 11 We -PRON- PRP 40404 1890 12 are be VBP 40404 1890 13 now now RB 40404 1890 14 to to TO 40404 1890 15 study study VB 40404 1890 16 the the DT 40404 1890 17 geological geological JJ 40404 1890 18 work work NN 40404 1890 19 of of IN 40404 1890 20 the the DT 40404 1890 21 currents current NNS 40404 1890 22 of of IN 40404 1890 23 the the DT 40404 1890 24 atmosphere atmosphere NN 40404 1890 25 , , , 40404 1890 26 and and CC 40404 1890 27 to to TO 40404 1890 28 learn learn VB 40404 1890 29 how how WRB 40404 1890 30 they -PRON- PRP 40404 1890 31 erode erode VBP 40404 1890 32 , , , 40404 1890 33 and and CC 40404 1890 34 transport transport NN 40404 1890 35 and and CC 40404 1890 36 deposit deposit NN 40404 1890 37 waste waste NN 40404 1890 38 as as IN 40404 1890 39 they -PRON- PRP 40404 1890 40 sweep sweep VBP 40404 1890 41 over over IN 40404 1890 42 the the DT 40404 1890 43 land land NN 40404 1890 44 . . . 40404 1891 1 Illustrations illustration NNS 40404 1891 2 of of IN 40404 1891 3 the the DT 40404 1891 4 wind wind NN 40404 1891 5 's 's POS 40404 1891 6 work work NN 40404 1891 7 are be VBP 40404 1891 8 at at IN 40404 1891 9 hand hand NN 40404 1891 10 in in IN 40404 1891 11 dry dry JJ 40404 1891 12 weather weather NN 40404 1891 13 on on IN 40404 1891 14 any any DT 40404 1891 15 windy windy JJ 40404 1891 16 day day NN 40404 1891 17 . . . 40404 1892 1 Clouds cloud NNS 40404 1892 2 of of IN 40404 1892 3 dust dust NN 40404 1892 4 are be VBP 40404 1892 5 raised raise VBN 40404 1892 6 from from IN 40404 1892 7 the the DT 40404 1892 8 street street NN 40404 1892 9 and and CC 40404 1892 10 driven drive VBN 40404 1892 11 along along IN 40404 1892 12 by by IN 40404 1892 13 the the DT 40404 1892 14 gale gale NN 40404 1892 15 . . . 40404 1893 1 Here here RB 40404 1893 2 the the DT 40404 1893 3 roadway roadway NN 40404 1893 4 is be VBZ 40404 1893 5 swept sweep VBN 40404 1893 6 bare bare JJ 40404 1893 7 ; ; : 40404 1893 8 and and CC 40404 1893 9 there there RB 40404 1893 10 , , , 40404 1893 11 in in IN 40404 1893 12 sheltered sheltered JJ 40404 1893 13 places place NNS 40404 1893 14 , , , 40404 1893 15 the the DT 40404 1893 16 dust dust NN 40404 1893 17 settles settle VBZ 40404 1893 18 in in IN 40404 1893 19 little little JJ 40404 1893 20 windrows windrow NNS 40404 1893 21 . . . 40404 1894 1 The the DT 40404 1894 2 erosive erosive JJ 40404 1894 3 power power NN 40404 1894 4 of of IN 40404 1894 5 waste waste NN 40404 1894 6 - - HYPH 40404 1894 7 laden laden JJ 40404 1894 8 currents current NNS 40404 1894 9 of of IN 40404 1894 10 air air NN 40404 1894 11 is be VBZ 40404 1894 12 suggested suggest VBN 40404 1894 13 as as IN 40404 1894 14 the the DT 40404 1894 15 sharp sharp JJ 40404 1894 16 grains grain NNS 40404 1894 17 of of IN 40404 1894 18 flying fly VBG 40404 1894 19 sand sand NN 40404 1894 20 sting ste VBG 40404 1894 21 one one PRP 40404 1894 22 's 's POS 40404 1894 23 face face NN 40404 1894 24 or or CC 40404 1894 25 clatter clatter NN 40404 1894 26 against against IN 40404 1894 27 the the DT 40404 1894 28 window window NN 40404 1894 29 . . . 40404 1895 1 In in IN 40404 1895 2 the the DT 40404 1895 3 country country NN 40404 1895 4 one one NN 40404 1895 5 sometimes sometimes RB 40404 1895 6 sees see VBZ 40404 1895 7 the the DT 40404 1895 8 dust dust NN 40404 1895 9 whirled whirl VBN 40404 1895 10 in in IN 40404 1895 11 clouds cloud NNS 40404 1895 12 from from IN 40404 1895 13 dry dry JJ 40404 1895 14 , , , 40404 1895 15 plowed plow VBN 40404 1895 16 fields field NNS 40404 1895 17 in in IN 40404 1895 18 spring spring NN 40404 1895 19 and and CC 40404 1895 20 left leave VBD 40404 1895 21 in in IN 40404 1895 22 the the DT 40404 1895 23 lee lee NN 40404 1895 24 of of IN 40404 1895 25 fences fence NNS 40404 1895 26 in in IN 40404 1895 27 small small JJ 40404 1895 28 drifts drift NNS 40404 1895 29 resembling resemble VBG 40404 1895 30 in in IN 40404 1895 31 form form NN 40404 1895 32 those those DT 40404 1895 33 of of IN 40404 1895 34 snow snow NN 40404 1895 35 in in IN 40404 1895 36 winter winter NN 40404 1895 37 . . . 40404 1896 1 = = NFP 40404 1896 2 The the DT 40404 1896 3 essential essential JJ 40404 1896 4 conditions= conditions= NN 40404 1896 5 for for IN 40404 1896 6 the the DT 40404 1896 7 wind wind NN 40404 1896 8 's 's POS 40404 1896 9 conspicuous conspicuous JJ 40404 1896 10 work work NN 40404 1896 11 are be VBP 40404 1896 12 illustrated illustrate VBN 40404 1896 13 in in IN 40404 1896 14 these these DT 40404 1896 15 simple simple JJ 40404 1896 16 examples example NNS 40404 1896 17 ; ; : 40404 1896 18 they -PRON- PRP 40404 1896 19 are be VBP 40404 1896 20 aridity aridity NN 40404 1896 21 and and CC 40404 1896 22 the the DT 40404 1896 23 absence absence NN 40404 1896 24 of of IN 40404 1896 25 vegetation vegetation NN 40404 1896 26 . . . 40404 1897 1 In in IN 40404 1897 2 humid humid NN 40404 1897 3 climates climate VBZ 40404 1897 4 these these DT 40404 1897 5 conditions condition NNS 40404 1897 6 are be VBP 40404 1897 7 only only RB 40404 1897 8 rarely rarely RB 40404 1897 9 and and CC 40404 1897 10 locally locally RB 40404 1897 11 met meet VBD 40404 1897 12 ; ; : 40404 1897 13 for for IN 40404 1897 14 the the DT 40404 1897 15 most most JJS 40404 1897 16 part part NN 40404 1897 17 a a DT 40404 1897 18 thick thick JJ 40404 1897 19 growth growth NN 40404 1897 20 of of IN 40404 1897 21 vegetation vegetation NN 40404 1897 22 protects protect VBZ 40404 1897 23 the the DT 40404 1897 24 moist moist JJ 40404 1897 25 soil soil NN 40404 1897 26 from from IN 40404 1897 27 the the DT 40404 1897 28 wind wind NN 40404 1897 29 with with IN 40404 1897 30 a a DT 40404 1897 31 cover cover NN 40404 1897 32 of of IN 40404 1897 33 leaves leave NNS 40404 1897 34 and and CC 40404 1897 35 stems stem NNS 40404 1897 36 and and CC 40404 1897 37 a a DT 40404 1897 38 mattress mattress NN 40404 1897 39 of of IN 40404 1897 40 interlacing interlace VBG 40404 1897 41 roots root NNS 40404 1897 42 . . . 40404 1898 1 But but CC 40404 1898 2 in in IN 40404 1898 3 arid arid JJ 40404 1898 4 regions region NNS 40404 1898 5 either either CC 40404 1898 6 vegetation vegetation NN 40404 1898 7 is be VBZ 40404 1898 8 wholly wholly RB 40404 1898 9 lacking lacking JJ 40404 1898 10 , , , 40404 1898 11 or or CC 40404 1898 12 scant scant JJ 40404 1898 13 growths growth NNS 40404 1898 14 are be VBP 40404 1898 15 found find VBN 40404 1898 16 huddled huddle VBD 40404 1898 17 in in IN 40404 1898 18 detached detached JJ 40404 1898 19 clumps clump NNS 40404 1898 20 , , , 40404 1898 21 leaving leave VBG 40404 1898 22 interspaces interspace NNS 40404 1898 23 of of IN 40404 1898 24 unprotected unprotected JJ 40404 1898 25 ground ground NN 40404 1898 26 ( ( -LRB- 40404 1898 27 Fig fig NN 40404 1898 28 . . . 40404 1899 1 119 119 CD 40404 1899 2 ) ) -RRB- 40404 1899 3 . . . 40404 1900 1 Here here RB 40404 1900 2 , , , 40404 1900 3 too too RB 40404 1900 4 , , , 40404 1900 5 the the DT 40404 1900 6 mantle mantle NN 40404 1900 7 of of IN 40404 1900 8 waste waste NNP 40404 1900 9 , , , 40404 1900 10 which which WDT 40404 1900 11 is be VBZ 40404 1900 12 formed form VBN 40404 1900 13 chiefly chiefly RB 40404 1900 14 under under IN 40404 1900 15 the the DT 40404 1900 16 action action NN 40404 1900 17 of of IN 40404 1900 18 temperature temperature NN 40404 1900 19 changes change NNS 40404 1900 20 , , , 40404 1900 21 remains remain VBZ 40404 1900 22 dry dry JJ 40404 1900 23 and and CC 40404 1900 24 loose loose JJ 40404 1900 25 for for IN 40404 1900 26 long long JJ 40404 1900 27 periods period NNS 40404 1900 28 . . . 40404 1901 1 Little little JJ 40404 1901 2 or or CC 40404 1901 3 no no DT 40404 1901 4 moisture moisture NN 40404 1901 5 is be VBZ 40404 1901 6 present present JJ 40404 1901 7 to to TO 40404 1901 8 cause cause VB 40404 1901 9 its -PRON- PRP$ 40404 1901 10 particles particle NNS 40404 1901 11 to to TO 40404 1901 12 cohere cohere VB 40404 1901 13 , , , 40404 1901 14 and and CC 40404 1901 15 they -PRON- PRP 40404 1901 16 are be VBP 40404 1901 17 therefore therefore RB 40404 1901 18 readily readily RB 40404 1901 19 lifted lift VBN 40404 1901 20 and and CC 40404 1901 21 drifted drift VBN 40404 1901 22 by by IN 40404 1901 23 the the DT 40404 1901 24 wind wind NN 40404 1901 25 . . . 40404 1902 1 Transportation transportation NN 40404 1902 2 By by IN 40404 1902 3 The the DT 40404 1902 4 Wind Wind NNP 40404 1902 5 In in IN 40404 1902 6 the the DT 40404 1902 7 desert desert NN 40404 1902 8 the the DT 40404 1902 9 finer fine JJR 40404 1902 10 waste waste NN 40404 1902 11 is be VBZ 40404 1902 12 continually continually RB 40404 1902 13 swept sweep VBN 40404 1902 14 to to IN 40404 1902 15 and and CC 40404 1902 16 fro fro NNP 40404 1902 17 by by IN 40404 1902 18 the the DT 40404 1902 19 ever ever RB 40404 1902 20 - - HYPH 40404 1902 21 shifting shift VBG 40404 1902 22 wind wind NN 40404 1902 23 . . . 40404 1903 1 Even even RB 40404 1903 2 in in IN 40404 1903 3 quiet quiet JJ 40404 1903 4 weather weather NN 40404 1903 5 the the DT 40404 1903 6 air air NN 40404 1903 7 heated heat VBN 40404 1903 8 by by IN 40404 1903 9 contact contact NN 40404 1903 10 with with IN 40404 1903 11 the the DT 40404 1903 12 hot hot JJ 40404 1903 13 sands sand NNS 40404 1903 14 rises rise VBZ 40404 1903 15 in in IN 40404 1903 16 whirls whirls NNP 40404 1903 17 , , , 40404 1903 18 and and CC 40404 1903 19 the the DT 40404 1903 20 dust dust NN 40404 1903 21 is be VBZ 40404 1903 22 lifted lift VBN 40404 1903 23 in in IN 40404 1903 24 stately stately JJ 40404 1903 25 columns column NNS 40404 1903 26 , , , 40404 1903 27 sometimes sometimes RB 40404 1903 28 as as RB 40404 1903 29 much much JJ 40404 1903 30 as as IN 40404 1903 31 one one CD 40404 1903 32 thousand thousand CD 40404 1903 33 feet foot NNS 40404 1903 34 in in IN 40404 1903 35 height height NN 40404 1903 36 , , , 40404 1903 37 which which WDT 40404 1903 38 march march NNP 40404 1903 39 slowly slowly RB 40404 1903 40 across across IN 40404 1903 41 the the DT 40404 1903 42 plain plain NN 40404 1903 43 . . . 40404 1904 1 In in IN 40404 1904 2 storms storm NNS 40404 1904 3 the the DT 40404 1904 4 sand sand NN 40404 1904 5 is be VBZ 40404 1904 6 driven drive VBN 40404 1904 7 along along IN 40404 1904 8 the the DT 40404 1904 9 ground ground NN 40404 1904 10 in in IN 40404 1904 11 a a DT 40404 1904 12 continuous continuous JJ 40404 1904 13 sheet sheet NN 40404 1904 14 , , , 40404 1904 15 while while IN 40404 1904 16 the the DT 40404 1904 17 air air NN 40404 1904 18 is be VBZ 40404 1904 19 tilled till VBN 40404 1904 20 with with IN 40404 1904 21 dust dust NN 40404 1904 22 . . . 40404 1905 1 Explorers explorer NNS 40404 1905 2 tell tell VBP 40404 1905 3 of of IN 40404 1905 4 sand sand NN 40404 1905 5 storms storm NNS 40404 1905 6 in in IN 40404 1905 7 the the DT 40404 1905 8 deserts desert NNS 40404 1905 9 of of IN 40404 1905 10 central central JJ 40404 1905 11 Asia Asia NNP 40404 1905 12 and and CC 40404 1905 13 Africa Africa NNP 40404 1905 14 , , , 40404 1905 15 in in IN 40404 1905 16 which which WDT 40404 1905 17 the the DT 40404 1905 18 air air NN 40404 1905 19 grows grow VBZ 40404 1905 20 murky murky JJ 40404 1905 21 and and CC 40404 1905 22 suffocating suffocating JJ 40404 1905 23 . . . 40404 1906 1 Even even RB 40404 1906 2 at at IN 40404 1906 3 midday midday NN 40404 1906 4 it -PRON- PRP 40404 1906 5 may may MD 40404 1906 6 become become VB 40404 1906 7 dark dark JJ 40404 1906 8 as as IN 40404 1906 9 night night NN 40404 1906 10 , , , 40404 1906 11 and and CC 40404 1906 12 nothing nothing NN 40404 1906 13 can can MD 40404 1906 14 be be VB 40404 1906 15 heard hear VBN 40404 1906 16 except except IN 40404 1906 17 the the DT 40404 1906 18 roar roar NN 40404 1906 19 of of IN 40404 1906 20 the the DT 40404 1906 21 blast blast NN 40404 1906 22 and and CC 40404 1906 23 the the DT 40404 1906 24 whir whir NN 40404 1906 25 of of IN 40404 1906 26 myriads myriad NNS 40404 1906 27 of of IN 40404 1906 28 grains grain NNS 40404 1906 29 of of IN 40404 1906 30 sand sand NN 40404 1906 31 as as IN 40404 1906 32 they -PRON- PRP 40404 1906 33 fly fly VBP 40404 1906 34 past past IN 40404 1906 35 the the DT 40404 1906 36 ear ear NN 40404 1906 37 . . . 40404 1907 1 Sand sand NN 40404 1907 2 storms storm NNS 40404 1907 3 are be VBP 40404 1907 4 by by IN 40404 1907 5 no no DT 40404 1907 6 means means NN 40404 1907 7 uncommon uncommon JJ 40404 1907 8 in in IN 40404 1907 9 the the DT 40404 1907 10 arid arid NN 40404 1907 11 regions region NNS 40404 1907 12 of of IN 40404 1907 13 the the DT 40404 1907 14 western western JJ 40404 1907 15 United United NNP 40404 1907 16 States States NNP 40404 1907 17 . . . 40404 1908 1 In in IN 40404 1908 2 a a DT 40404 1908 3 recent recent JJ 40404 1908 4 year year NN 40404 1908 5 , , , 40404 1908 6 six six CD 40404 1908 7 were be VBD 40404 1908 8 reported report VBN 40404 1908 9 from from IN 40404 1908 10 Yuma Yuma NNP 40404 1908 11 , , , 40404 1908 12 Arizona Arizona NNP 40404 1908 13 . . . 40404 1909 1 Trains train NNS 40404 1909 2 on on IN 40404 1909 3 transcontinental transcontinental JJ 40404 1909 4 railways railway NNS 40404 1909 5 are be VBP 40404 1909 6 occasionally occasionally RB 40404 1909 7 blockaded blockade VBN 40404 1909 8 by by IN 40404 1909 9 drifting drift VBG 40404 1909 10 sand sand NN 40404 1909 11 , , , 40404 1909 12 and and CC 40404 1909 13 the the DT 40404 1909 14 dust dust NN 40404 1909 15 sifts sift VBZ 40404 1909 16 into into IN 40404 1909 17 closed closed JJ 40404 1909 18 passenger passenger NN 40404 1909 19 coaches coach NNS 40404 1909 20 , , , 40404 1909 21 covering cover VBG 40404 1909 22 the the DT 40404 1909 23 seats seat NNS 40404 1909 24 and and CC 40404 1909 25 floors floor NNS 40404 1909 26 . . . 40404 1910 1 After after IN 40404 1910 2 such such PDT 40404 1910 3 a a DT 40404 1910 4 storm storm NN 40404 1910 5 thirteen thirteen CD 40404 1910 6 car car NN 40404 1910 7 loads load NNS 40404 1910 8 of of IN 40404 1910 9 sand sand NN 40404 1910 10 were be VBD 40404 1910 11 removed remove VBN 40404 1910 12 from from IN 40404 1910 13 the the DT 40404 1910 14 platform platform NN 40404 1910 15 of of IN 40404 1910 16 a a DT 40404 1910 17 station station NN 40404 1910 18 on on IN 40404 1910 19 a a DT 40404 1910 20 western western JJ 40404 1910 21 railway railway NN 40404 1910 22 . . . 40404 1911 1 = = NFP 40404 1911 2 Dust Dust NNP 40404 1911 3 falls.= falls.= CD 40404 1911 4 Dust Dust NNP 40404 1911 5 launched launch VBN 40404 1911 6 by by IN 40404 1911 7 upward upward RB 40404 1911 8 - - HYPH 40404 1911 9 whirling whirl VBG 40404 1911 10 winds wind NNS 40404 1911 11 on on IN 40404 1911 12 the the DT 40404 1911 13 swift swift JJ 40404 1911 14 currents current NNS 40404 1911 15 of of IN 40404 1911 16 the the DT 40404 1911 17 upper upper JJ 40404 1911 18 air air NN 40404 1911 19 is be VBZ 40404 1911 20 often often RB 40404 1911 21 blown blow VBN 40404 1911 22 for for IN 40404 1911 23 hundreds hundred NNS 40404 1911 24 of of IN 40404 1911 25 miles mile NNS 40404 1911 26 beyond beyond IN 40404 1911 27 the the DT 40404 1911 28 arid arid NN 40404 1911 29 region region NN 40404 1911 30 from from IN 40404 1911 31 which which WDT 40404 1911 32 it -PRON- PRP 40404 1911 33 was be VBD 40404 1911 34 taken take VBN 40404 1911 35 . . . 40404 1912 1 Dust dust NN 40404 1912 2 falls fall VBZ 40404 1912 3 from from IN 40404 1912 4 western western JJ 40404 1912 5 storms storm NNS 40404 1912 6 are be VBP 40404 1912 7 not not RB 40404 1912 8 unknown unknown JJ 40404 1912 9 even even RB 40404 1912 10 as as IN 40404 1912 11 far far RB 40404 1912 12 east east RB 40404 1912 13 as as IN 40404 1912 14 the the DT 40404 1912 15 Great Great NNP 40404 1912 16 Lakes Lakes NNPS 40404 1912 17 . . . 40404 1913 1 In in IN 40404 1913 2 1896 1896 CD 40404 1913 3 a a DT 40404 1913 4 " " `` 40404 1913 5 black black JJ 40404 1913 6 snow snow NN 40404 1913 7 " " '' 40404 1913 8 fell fall VBD 40404 1913 9 in in IN 40404 1913 10 Chicago Chicago NNP 40404 1913 11 , , , 40404 1913 12 and and CC 40404 1913 13 in in IN 40404 1913 14 another another DT 40404 1913 15 dust dust NN 40404 1913 16 storm storm NN 40404 1913 17 in in IN 40404 1913 18 the the DT 40404 1913 19 same same JJ 40404 1913 20 decade decade NN 40404 1913 21 the the DT 40404 1913 22 amount amount NN 40404 1913 23 of of IN 40404 1913 24 dust dust NN 40404 1913 25 carried carry VBN 40404 1913 26 in in IN 40404 1913 27 the the DT 40404 1913 28 air air NN 40404 1913 29 over over IN 40404 1913 30 Rock Rock NNP 40404 1913 31 Island Island NNP 40404 1913 32 , , , 40404 1913 33 Ill. Illinois NNP 40404 1913 34 , , , 40404 1913 35 was be VBD 40404 1913 36 estimated estimate VBN 40404 1913 37 at at IN 40404 1913 38 more more JJR 40404 1913 39 than than IN 40404 1913 40 one one CD 40404 1913 41 thousand thousand CD 40404 1913 42 tons ton NNS 40404 1913 43 to to IN 40404 1913 44 the the DT 40404 1913 45 cubic cubic JJ 40404 1913 46 mile mile NN 40404 1913 47 . . . 40404 1914 1 [ [ -LRB- 40404 1914 2 Illustration illustration NN 40404 1914 3 : : : 40404 1914 4 Fig Fig NNP 40404 1914 5 . . . 40404 1915 1 120 120 CD 40404 1915 2 . . . 40404 1916 1 A a DT 40404 1916 2 Tract Tract NNP 40404 1916 3 of of IN 40404 1916 4 Rocky Rocky NNP 40404 1916 5 Desert Desert NNP 40404 1916 6 , , , 40404 1916 7 Arabia Arabia NNP 40404 1916 8 By by IN 40404 1916 9 what what WDT 40404 1916 10 process process NN 40404 1916 11 have have VBP 40404 1916 12 these these DT 40404 1916 13 rocks rock NNS 40404 1916 14 been be VBN 40404 1916 15 broken break VBN 40404 1916 16 up up RP 40404 1916 17 ? ? . 40404 1917 1 Why why WRB 40404 1917 2 is be VBZ 40404 1917 3 finer fine JJR 40404 1917 4 waste waste NN 40404 1917 5 here here RB 40404 1917 6 absent absent JJ 40404 1917 7 ? ? . 40404 1917 8 ] ] -RRB- 40404 1918 1 In in IN 40404 1918 2 March March NNP 40404 1918 3 , , , 40404 1918 4 1901 1901 CD 40404 1918 5 , , , 40404 1918 6 a a DT 40404 1918 7 cyclonic cyclonic JJ 40404 1918 8 storm storm NN 40404 1918 9 carried carry VBD 40404 1918 10 vast vast JJ 40404 1918 11 quantities quantity NNS 40404 1918 12 of of IN 40404 1918 13 dust dust NN 40404 1918 14 from from IN 40404 1918 15 the the DT 40404 1918 16 Sahara Sahara NNP 40404 1918 17 northward northward RB 40404 1918 18 across across IN 40404 1918 19 the the DT 40404 1918 20 Mediterranean Mediterranean NNP 40404 1918 21 to to TO 40404 1918 22 fall fall VB 40404 1918 23 over over IN 40404 1918 24 southern southern JJ 40404 1918 25 and and CC 40404 1918 26 central central JJ 40404 1918 27 Europe Europe NNP 40404 1918 28 . . . 40404 1919 1 On on IN 40404 1919 2 March March NNP 40404 1919 3 8th 8th JJ 40404 1919 4 dust dust NN 40404 1919 5 storms storm NNS 40404 1919 6 raged rage VBD 40404 1919 7 in in IN 40404 1919 8 southern southern JJ 40404 1919 9 Algeria Algeria NNP 40404 1919 10 ; ; : 40404 1919 11 two two CD 40404 1919 12 days day NNS 40404 1919 13 later later RBR 40404 1919 14 the the DT 40404 1919 15 dust dust NN 40404 1919 16 fell fall VBD 40404 1919 17 in in IN 40404 1919 18 Italy Italy NNP 40404 1919 19 ; ; : 40404 1919 20 and and CC 40404 1919 21 on on IN 40404 1919 22 the the DT 40404 1919 23 11th 11th NN 40404 1919 24 it -PRON- PRP 40404 1919 25 had have VBD 40404 1919 26 reached reach VBN 40404 1919 27 central central JJ 40404 1919 28 Germany Germany NNP 40404 1919 29 and and CC 40404 1919 30 Denmark Denmark NNP 40404 1919 31 . . . 40404 1920 1 It -PRON- PRP 40404 1920 2 is be VBZ 40404 1920 3 estimated estimate VBN 40404 1920 4 that that IN 40404 1920 5 in in IN 40404 1920 6 these these DT 40404 1920 7 few few JJ 40404 1920 8 days day NNS 40404 1920 9 one one CD 40404 1920 10 million million CD 40404 1920 11 eight eight CD 40404 1920 12 hundred hundred CD 40404 1920 13 thousand thousand CD 40404 1920 14 tons ton NNS 40404 1920 15 of of IN 40404 1920 16 waste waste NN 40404 1920 17 were be VBD 40404 1920 18 carried carry VBN 40404 1920 19 from from IN 40404 1920 20 northern northern JJ 40404 1920 21 Africa Africa NNP 40404 1920 22 and and CC 40404 1920 23 deposited deposit VBN 40404 1920 24 on on IN 40404 1920 25 European european JJ 40404 1920 26 soil soil NN 40404 1920 27 . . . 40404 1921 1 We -PRON- PRP 40404 1921 2 may may MD 40404 1921 3 see see VB 40404 1921 4 from from IN 40404 1921 5 these these DT 40404 1921 6 examples example NNS 40404 1921 7 the the DT 40404 1921 8 importance importance NN 40404 1921 9 of of IN 40404 1921 10 the the DT 40404 1921 11 wind wind NN 40404 1921 12 as as IN 40404 1921 13 an an DT 40404 1921 14 agent agent NN 40404 1921 15 of of IN 40404 1921 16 transportation transportation NN 40404 1921 17 , , , 40404 1921 18 and and CC 40404 1921 19 how how WRB 40404 1921 20 vast vast JJ 40404 1921 21 in in IN 40404 1921 22 the the DT 40404 1921 23 aggregate aggregate NN 40404 1921 24 are be VBP 40404 1921 25 the the DT 40404 1921 26 loads load NNS 40404 1921 27 which which WDT 40404 1921 28 it -PRON- PRP 40404 1921 29 carries carry VBZ 40404 1921 30 . . . 40404 1922 1 There there EX 40404 1922 2 are be VBP 40404 1922 3 striking strike VBG 40404 1922 4 differences difference NNS 40404 1922 5 between between IN 40404 1922 6 air air NN 40404 1922 7 and and CC 40404 1922 8 water water NN 40404 1922 9 as as IN 40404 1922 10 carriers carrier NNS 40404 1922 11 of of IN 40404 1922 12 waste waste NN 40404 1922 13 . . . 40404 1923 1 Rivers river NNS 40404 1923 2 flow flow VBP 40404 1923 3 in in IN 40404 1923 4 fixed fixed JJ 40404 1923 5 and and CC 40404 1923 6 narrow narrow JJ 40404 1923 7 channels channel NNS 40404 1923 8 to to IN 40404 1923 9 definite definite JJ 40404 1923 10 goals goal NNS 40404 1923 11 . . . 40404 1924 1 The the DT 40404 1924 2 channelless channelless NN 40404 1924 3 streams stream NNS 40404 1924 4 of of IN 40404 1924 5 the the DT 40404 1924 6 air air NN 40404 1924 7 sweep sweep NN 40404 1924 8 across across IN 40404 1924 9 broad broad JJ 40404 1924 10 areas area NNS 40404 1924 11 , , , 40404 1924 12 and and CC 40404 1924 13 , , , 40404 1924 14 shifting shift VBG 40404 1924 15 about about IN 40404 1924 16 continually continually RB 40404 1924 17 , , , 40404 1924 18 carry carry VBP 40404 1924 19 their -PRON- PRP$ 40404 1924 20 loads load NNS 40404 1924 21 back back RB 40404 1924 22 and and CC 40404 1924 23 forth forth RB 40404 1924 24 , , , 40404 1924 25 now now RB 40404 1924 26 in in IN 40404 1924 27 one one CD 40404 1924 28 direction direction NN 40404 1924 29 and and CC 40404 1924 30 now now RB 40404 1924 31 in in IN 40404 1924 32 another another DT 40404 1924 33 . . . 40404 1925 1 Wind wind NN 40404 1925 2 Deposits deposit VBZ 40404 1925 3 The the DT 40404 1925 4 mantle mantle NN 40404 1925 5 of of IN 40404 1925 6 waste waste NN 40404 1925 7 of of IN 40404 1925 8 deserts desert NNS 40404 1925 9 is be VBZ 40404 1925 10 rapidly rapidly RB 40404 1925 11 sorted sort VBN 40404 1925 12 by by IN 40404 1925 13 the the DT 40404 1925 14 wind wind NN 40404 1925 15 . . . 40404 1926 1 The the DT 40404 1926 2 coarser coarser NN 40404 1926 3 rubbish rubbish NN 40404 1926 4 , , , 40404 1926 5 too too RB 40404 1926 6 heavy heavy JJ 40404 1926 7 to to TO 40404 1926 8 be be VB 40404 1926 9 lifted lift VBN 40404 1926 10 into into IN 40404 1926 11 the the DT 40404 1926 12 air air NN 40404 1926 13 , , , 40404 1926 14 is be VBZ 40404 1926 15 left leave VBN 40404 1926 16 to to TO 40404 1926 17 strew strew VB 40404 1926 18 wide wide JJ 40404 1926 19 tracts tract NNS 40404 1926 20 with with IN 40404 1926 21 residual residual JJ 40404 1926 22 gravels gravel NNS 40404 1926 23 ( ( -LRB- 40404 1926 24 Fig fig NN 40404 1926 25 . . . 40404 1927 1 120 120 CD 40404 1927 2 ) ) -RRB- 40404 1927 3 . . . 40404 1928 1 The the DT 40404 1928 2 sand sand NN 40404 1928 3 derived derive VBD 40404 1928 4 from from IN 40404 1928 5 the the DT 40404 1928 6 disintegration disintegration NN 40404 1928 7 of of IN 40404 1928 8 desert desert NN 40404 1928 9 rocks rock VBZ 40404 1928 10 gathers gather NNS 40404 1928 11 in in IN 40404 1928 12 vast vast JJ 40404 1928 13 fields field NNS 40404 1928 14 . . . 40404 1929 1 About about RB 40404 1929 2 one one CD 40404 1929 3 eighth eighth NN 40404 1929 4 of of IN 40404 1929 5 the the DT 40404 1929 6 surface surface NN 40404 1929 7 of of IN 40404 1929 8 the the DT 40404 1929 9 Sahara Sahara NNP 40404 1929 10 is be VBZ 40404 1929 11 said say VBN 40404 1929 12 to to TO 40404 1929 13 be be VB 40404 1929 14 thus thus RB 40404 1929 15 covered cover VBN 40404 1929 16 with with IN 40404 1929 17 drifting drift VBG 40404 1929 18 sand sand NN 40404 1929 19 . . . 40404 1930 1 In in IN 40404 1930 2 desert desert NN 40404 1930 3 mountains mountain NNS 40404 1930 4 , , , 40404 1930 5 as as IN 40404 1930 6 those those DT 40404 1930 7 of of IN 40404 1930 8 Sinai Sinai NNP 40404 1930 9 , , , 40404 1930 10 it -PRON- PRP 40404 1930 11 lies lie VBZ 40404 1930 12 like like IN 40404 1930 13 fields field NNS 40404 1930 14 of of IN 40404 1930 15 snow snow NN 40404 1930 16 in in IN 40404 1930 17 the the DT 40404 1930 18 high high JJ 40404 1930 19 valleys valley NNS 40404 1930 20 below below IN 40404 1930 21 the the DT 40404 1930 22 sharp sharp JJ 40404 1930 23 peaks peak NNS 40404 1930 24 . . . 40404 1931 1 On on IN 40404 1931 2 more more JJR 40404 1931 3 level level NN 40404 1931 4 tracts tract NNS 40404 1931 5 it -PRON- PRP 40404 1931 6 accumulates accumulate VBZ 40404 1931 7 in in IN 40404 1931 8 seas sea NNS 40404 1931 9 of of IN 40404 1931 10 sand sand NN 40404 1931 11 , , , 40404 1931 12 sometimes sometimes RB 40404 1931 13 , , , 40404 1931 14 as as IN 40404 1931 15 in in IN 40404 1931 16 the the DT 40404 1931 17 deserts desert NNS 40404 1931 18 of of IN 40404 1931 19 Arabia Arabia NNP 40404 1931 20 , , , 40404 1931 21 two two CD 40404 1931 22 hundred hundred CD 40404 1931 23 and and CC 40404 1931 24 more more JJR 40404 1931 25 feet foot NNS 40404 1931 26 deep deep JJ 40404 1931 27 . . . 40404 1932 1 [ [ -LRB- 40404 1932 2 Illustration illustration NN 40404 1932 3 : : : 40404 1932 4 Fig Fig NNP 40404 1932 5 . . . 40404 1933 1 121 121 CD 40404 1933 2 . . . 40404 1934 1 Longitudinal Longitudinal NNP 40404 1934 2 Dunes Dunes NNP 40404 1934 3 , , , 40404 1934 4 Desert Desert NNP 40404 1934 5 of of IN 40404 1934 6 Northwestern Northwestern NNP 40404 1934 7 India India NNP 40404 1934 8 Scale Scale NNP 40404 1934 9 , , , 40404 1934 10 1 1 CD 40404 1934 11 in in IN 40404 1934 12 = = SYM 40404 1934 13 3 3 CD 40404 1934 14 miles mile NNS 40404 1934 15 ] ] -RRB- 40404 1934 16 = = SYM 40404 1934 17 Dunes.= Dunes.= NNP 40404 1934 18 The the DT 40404 1934 19 sand sand NN 40404 1934 20 thus thus RB 40404 1934 21 accumulated accumulate VBN 40404 1934 22 by by IN 40404 1934 23 the the DT 40404 1934 24 wind wind NN 40404 1934 25 is be VBZ 40404 1934 26 heaped heap VBN 40404 1934 27 in in IN 40404 1934 28 wavelike wavelike NNP 40404 1934 29 hills hill NNS 40404 1934 30 called call VBN 40404 1934 31 dunes dune NNS 40404 1934 32 . . . 40404 1935 1 In in IN 40404 1935 2 the the DT 40404 1935 3 desert desert NN 40404 1935 4 of of IN 40404 1935 5 northwestern northwestern JJ 40404 1935 6 India India NNP 40404 1935 7 , , , 40404 1935 8 where where WRB 40404 1935 9 the the DT 40404 1935 10 prevalent prevalent JJ 40404 1935 11 wind wind NN 40404 1935 12 is be VBZ 40404 1935 13 of of IN 40404 1935 14 great great JJ 40404 1935 15 strength strength NN 40404 1935 16 , , , 40404 1935 17 the the DT 40404 1935 18 sand sand NN 40404 1935 19 is be VBZ 40404 1935 20 laid lay VBN 40404 1935 21 in in IN 40404 1935 22 longitudinal longitudinal JJ 40404 1935 23 dunes dune NNS 40404 1935 24 , , , 40404 1935 25 i.e. i.e. FW 40404 1936 1 in in IN 40404 1936 2 stripes stripe NNS 40404 1936 3 running run VBG 40404 1936 4 parallel parallel NN 40404 1936 5 with with IN 40404 1936 6 the the DT 40404 1936 7 direction direction NN 40404 1936 8 of of IN 40404 1936 9 the the DT 40404 1936 10 wind wind NN 40404 1936 11 ; ; : 40404 1936 12 but but CC 40404 1936 13 commonly commonly RB 40404 1936 14 dunes dune NNS 40404 1936 15 lie lie VBP 40404 1936 16 , , , 40404 1936 17 like like IN 40404 1936 18 ripple ripple JJ 40404 1936 19 marks mark NNS 40404 1936 20 , , , 40404 1936 21 transverse transverse JJ 40404 1936 22 to to IN 40404 1936 23 the the DT 40404 1936 24 wind wind NN 40404 1936 25 current current JJ 40404 1936 26 . . . 40404 1937 1 On on IN 40404 1937 2 the the DT 40404 1937 3 windward windward JJ 40404 1937 4 side side NN 40404 1937 5 they -PRON- PRP 40404 1937 6 show show VBP 40404 1937 7 a a DT 40404 1937 8 long long JJ 40404 1937 9 , , , 40404 1937 10 gentle gentle JJ 40404 1937 11 slope slope NN 40404 1937 12 , , , 40404 1937 13 up up IN 40404 1937 14 which which WDT 40404 1937 15 grains grain NNS 40404 1937 16 of of IN 40404 1937 17 sand sand NN 40404 1937 18 can can MD 40404 1937 19 readily readily RB 40404 1937 20 be be VB 40404 1937 21 moved move VBN 40404 1937 22 ; ; : 40404 1937 23 while while IN 40404 1937 24 to to IN 40404 1937 25 the the DT 40404 1937 26 lee lee NNP 40404 1937 27 their -PRON- PRP$ 40404 1937 28 slope slope NN 40404 1937 29 is be VBZ 40404 1937 30 frequently frequently RB 40404 1937 31 as as RB 40404 1937 32 great great JJ 40404 1937 33 as as IN 40404 1937 34 the the DT 40404 1937 35 angle angle NN 40404 1937 36 of of IN 40404 1937 37 repose repose NN 40404 1937 38 ( ( -LRB- 40404 1937 39 Fig fig NN 40404 1937 40 . . . 40404 1938 1 122 122 CD 40404 1938 2 ) ) -RRB- 40404 1938 3 . . . 40404 1939 1 Dunes dune NNS 40404 1939 2 whose whose WP$ 40404 1939 3 sands sand NNS 40404 1939 4 are be VBP 40404 1939 5 not not RB 40404 1939 6 fixed fix VBN 40404 1939 7 by by IN 40404 1939 8 vegetation vegetation NN 40404 1939 9 travel travel VBP 40404 1939 10 slowly slowly RB 40404 1939 11 with with IN 40404 1939 12 the the DT 40404 1939 13 wind wind NN 40404 1939 14 ; ; : 40404 1939 15 for for IN 40404 1939 16 their -PRON- PRP$ 40404 1939 17 material material NN 40404 1939 18 is be VBZ 40404 1939 19 ever ever RB 40404 1939 20 shifted shift VBN 40404 1939 21 forward forward RB 40404 1939 22 as as IN 40404 1939 23 the the DT 40404 1939 24 grains grain NNS 40404 1939 25 are be VBP 40404 1939 26 driven drive VBN 40404 1939 27 up up RP 40404 1939 28 the the DT 40404 1939 29 windward windward JJ 40404 1939 30 slope slope NN 40404 1939 31 and and CC 40404 1939 32 , , , 40404 1939 33 falling fall VBG 40404 1939 34 over over IN 40404 1939 35 the the DT 40404 1939 36 crest crest NN 40404 1939 37 , , , 40404 1939 38 are be VBP 40404 1939 39 deposited deposit VBN 40404 1939 40 in in IN 40404 1939 41 slanting slant VBG 40404 1939 42 layers layer NNS 40404 1939 43 in in IN 40404 1939 44 the the DT 40404 1939 45 quiet quiet NN 40404 1939 46 of of IN 40404 1939 47 the the DT 40404 1939 48 lee lee NNP 40404 1939 49 . . . 40404 1940 1 [ [ -LRB- 40404 1940 2 Illustration illustration NN 40404 1940 3 : : : 40404 1940 4 Fig Fig NNP 40404 1940 5 . . . 40404 1941 1 122 122 CD 40404 1941 2 . . . 40404 1942 1 A a DT 40404 1942 2 Transverse Transverse NNP 40404 1942 3 Dune Dune NNP 40404 1942 4 , , , 40404 1942 5 Seven Seven NNP 40404 1942 6 Mile Mile NNP 40404 1942 7 Beach Beach NNP 40404 1942 8 , , , 40404 1942 9 New New NNP 40404 1942 10 Jersey Jersey NNP 40404 1942 11 Account Account NNP 40404 1942 12 for for IN 40404 1942 13 the the DT 40404 1942 14 difference difference NN 40404 1942 15 of of IN 40404 1942 16 slope slope NN 40404 1942 17 in in IN 40404 1942 18 the the DT 40404 1942 19 two two CD 40404 1942 20 sides side NNS 40404 1942 21 of of IN 40404 1942 22 the the DT 40404 1942 23 dune dune NN 40404 1942 24 . . . 40404 1943 1 Is be VBZ 40404 1943 2 the the DT 40404 1943 3 dune dune NN 40404 1943 4 marching marching NN 40404 1943 5 ? ? . 40404 1944 1 In in IN 40404 1944 2 what what WDT 40404 1944 3 direction direction NN 40404 1944 4 ? ? . 40404 1945 1 With with IN 40404 1945 2 what what WDT 40404 1945 3 effect effect NN 40404 1945 4 ? ? . 40404 1946 1 Do do VBP 40404 1946 2 the the DT 40404 1946 3 ridges ridge NNS 40404 1946 4 of of IN 40404 1946 5 the the DT 40404 1946 6 ripple ripple JJ 40404 1946 7 marks mark NNS 40404 1946 8 upon upon IN 40404 1946 9 the the DT 40404 1946 10 dune dune NN 40404 1946 11 extend extend VBP 40404 1946 12 along along IN 40404 1946 13 it -PRON- PRP 40404 1946 14 or or CC 40404 1946 15 athwart athwart VB 40404 1946 16 it -PRON- PRP 40404 1946 17 ? ? . 40404 1947 1 Why why WRB 40404 1947 2 ? ? . 40404 1947 3 ] ] -RRB- 40404 1948 1 Like like IN 40404 1948 2 river river NN 40404 1948 3 deposits deposit NNS 40404 1948 4 , , , 40404 1948 5 wind wind NN 40404 1948 6 - - HYPH 40404 1948 7 blown blow VBN 40404 1948 8 sands sand NNS 40404 1948 9 are be VBP 40404 1948 10 stratified stratify VBN 40404 1948 11 , , , 40404 1948 12 since since IN 40404 1948 13 they -PRON- PRP 40404 1948 14 are be VBP 40404 1948 15 laid lay VBN 40404 1948 16 by by IN 40404 1948 17 currents current NNS 40404 1948 18 of of IN 40404 1948 19 air air NN 40404 1948 20 varying varying NN 40404 1948 21 in in IN 40404 1948 22 intensity intensity NN 40404 1948 23 , , , 40404 1948 24 and and CC 40404 1948 25 therefore therefore RB 40404 1948 26 in in IN 40404 1948 27 transporting transport VBG 40404 1948 28 power power NN 40404 1948 29 , , , 40404 1948 30 which which WDT 40404 1948 31 carry carry VBP 40404 1948 32 now now RB 40404 1948 33 finer fine JJR 40404 1948 34 and and CC 40404 1948 35 now now RB 40404 1948 36 coarser coarser NN 40404 1948 37 materials material NNS 40404 1948 38 and and CC 40404 1948 39 lay lie VBD 40404 1948 40 them -PRON- PRP 40404 1948 41 down down RP 40404 1948 42 where where WRB 40404 1948 43 their -PRON- PRP$ 40404 1948 44 velocity velocity NN 40404 1948 45 is be VBZ 40404 1948 46 checked check VBN 40404 1948 47 ( ( -LRB- 40404 1948 48 Fig fig NN 40404 1948 49 . . . 40404 1949 1 123 123 CD 40404 1949 2 ) ) -RRB- 40404 1949 3 . . . 40404 1950 1 Since since IN 40404 1950 2 the the DT 40404 1950 3 wind wind NN 40404 1950 4 varies vary VBZ 40404 1950 5 in in IN 40404 1950 6 direction direction NN 40404 1950 7 , , , 40404 1950 8 the the DT 40404 1950 9 strata strata NN 40404 1950 10 dip dip NN 40404 1950 11 in in IN 40404 1950 12 various various JJ 40404 1950 13 directions direction NNS 40404 1950 14 . . . 40404 1951 1 They -PRON- PRP 40404 1951 2 also also RB 40404 1951 3 dip dip VBP 40404 1951 4 at at IN 40404 1951 5 various various JJ 40404 1951 6 angles angle NNS 40404 1951 7 , , , 40404 1951 8 according accord VBG 40404 1951 9 to to IN 40404 1951 10 the the DT 40404 1951 11 inclination inclination NN 40404 1951 12 of of IN 40404 1951 13 the the DT 40404 1951 14 surface surface NN 40404 1951 15 on on IN 40404 1951 16 which which WDT 40404 1951 17 they -PRON- PRP 40404 1951 18 were be VBD 40404 1951 19 laid lay VBN 40404 1951 20 . . . 40404 1952 1 [ [ -LRB- 40404 1952 2 Illustration illustration NN 40404 1952 3 : : : 40404 1952 4 Fig Fig NNP 40404 1952 5 . . . 40404 1953 1 123 123 CD 40404 1953 2 . . . 40404 1954 1 Stratified stratified JJ 40404 1954 2 Wind wind NN 40404 1954 3 - - HYPH 40404 1954 4 Blown Blown NNP 40404 1954 5 Sands sand NNS 40404 1954 6 , , , 40404 1954 7 Bermuda Bermuda NNP 40404 1954 8 Islands Islands NNPS 40404 1954 9 These these DT 40404 1954 10 islands island NNS 40404 1954 11 are be VBP 40404 1954 12 made make VBN 40404 1954 13 wholly wholly RB 40404 1954 14 of of IN 40404 1954 15 limestone limestone NN 40404 1954 16 , , , 40404 1954 17 the the DT 40404 1954 18 product product NN 40404 1954 19 of of IN 40404 1954 20 reef reef NN 40404 1954 21 - - HYPH 40404 1954 22 building building NN 40404 1954 23 corals coral NNS 40404 1954 24 , , , 40404 1954 25 and and CC 40404 1954 26 of of IN 40404 1954 27 lime lime NN 40404 1954 28 from from IN 40404 1954 29 the the DT 40404 1954 30 sea sea NN 40404 1954 31 water water NN 40404 1954 32 . . . 40404 1955 1 The the DT 40404 1955 2 limestone limestone NN 40404 1955 3 sand sand NN 40404 1955 4 of of IN 40404 1955 5 the the DT 40404 1955 6 beaches beach NNS 40404 1955 7 has have VBZ 40404 1955 8 been be VBN 40404 1955 9 blown blow VBN 40404 1955 10 up up RP 40404 1955 11 into into IN 40404 1955 12 great great JJ 40404 1955 13 dunes dune NNS 40404 1955 14 , , , 40404 1955 15 some some DT 40404 1955 16 more more JJR 40404 1955 17 than than IN 40404 1955 18 two two CD 40404 1955 19 hundred hundred CD 40404 1955 20 feet foot NNS 40404 1955 21 in in IN 40404 1955 22 height height NN 40404 1955 23 . . . 40404 1956 1 Much much JJ 40404 1956 2 of of IN 40404 1956 3 the the DT 40404 1956 4 loose loose JJ 40404 1956 5 dune dune NN 40404 1956 6 sand sand NN 40404 1956 7 has have VBZ 40404 1956 8 been be VBN 40404 1956 9 changed change VBN 40404 1956 10 to to TO 40404 1956 11 firm firm VB 40404 1956 12 rock rock NN 40404 1956 13 by by IN 40404 1956 14 percolating percolate VBG 40404 1956 15 waters water NNS 40404 1956 16 , , , 40404 1956 17 which which WDT 40404 1956 18 have have VBP 40404 1956 19 dissolved dissolve VBN 40404 1956 20 some some DT 40404 1956 21 of of IN 40404 1956 22 the the DT 40404 1956 23 limestone limestone NN 40404 1956 24 and and CC 40404 1956 25 deposited deposit VBD 40404 1956 26 it -PRON- PRP 40404 1956 27 again again RB 40404 1956 28 as as IN 40404 1956 29 a a DT 40404 1956 30 cement cement NN 40404 1956 31 between between IN 40404 1956 32 the the DT 40404 1956 33 grains grain NNS 40404 1956 34 ] ] -RRB- 40404 1956 35 Dunes dune NNS 40404 1956 36 occur occur VBP 40404 1956 37 not not RB 40404 1956 38 only only RB 40404 1956 39 in in IN 40404 1956 40 arid arid JJ 40404 1956 41 regions region NNS 40404 1956 42 , , , 40404 1956 43 but but CC 40404 1956 44 also also RB 40404 1956 45 wherever wherever WRB 40404 1956 46 loose loose JJ 40404 1956 47 sand sand NN 40404 1956 48 lies lie VBZ 40404 1956 49 unprotected unprotecte VBN 40404 1956 50 by by IN 40404 1956 51 vegetation vegetation NN 40404 1956 52 from from IN 40404 1956 53 the the DT 40404 1956 54 wind wind NN 40404 1956 55 . . . 40404 1957 1 From from IN 40404 1957 2 the the DT 40404 1957 3 beaches beach NNS 40404 1957 4 of of IN 40404 1957 5 sea sea NN 40404 1957 6 and and CC 40404 1957 7 lake lake NNP 40404 1957 8 shores shore VBZ 40404 1957 9 the the DT 40404 1957 10 wind wind NN 40404 1957 11 drives drive NNS 40404 1957 12 inland inland RB 40404 1957 13 the the DT 40404 1957 14 surface surface NN 40404 1957 15 sand sand NN 40404 1957 16 left leave VBN 40404 1957 17 dry dry JJ 40404 1957 18 between between IN 40404 1957 19 tides tide NNS 40404 1957 20 and and CC 40404 1957 21 after after IN 40404 1957 22 storms storm NNS 40404 1957 23 , , , 40404 1957 24 piling pile VBG 40404 1957 25 it -PRON- PRP 40404 1957 26 in in IN 40404 1957 27 dunes dune NNS 40404 1957 28 which which WDT 40404 1957 29 may may MD 40404 1957 30 invade invade VB 40404 1957 31 forests forest NNS 40404 1957 32 and and CC 40404 1957 33 fields field NNS 40404 1957 34 and and CC 40404 1957 35 bury bury VB 40404 1957 36 villages village NNS 40404 1957 37 beneath beneath IN 40404 1957 38 their -PRON- PRP$ 40404 1957 39 slowly slowly RB 40404 1957 40 advancing advance VBG 40404 1957 41 waves wave NNS 40404 1957 42 . . . 40404 1958 1 On on IN 40404 1958 2 flood flood NN 40404 1958 3 plains plain NNS 40404 1958 4 during during IN 40404 1958 5 summer summer NN 40404 1958 6 droughts drought VBZ 40404 1958 7 river river NN 40404 1958 8 deposits deposit NNS 40404 1958 9 are be VBP 40404 1958 10 often often RB 40404 1958 11 worked work VBN 40404 1958 12 over over RP 40404 1958 13 by by IN 40404 1958 14 the the DT 40404 1958 15 wind wind NN 40404 1958 16 ; ; : 40404 1958 17 the the DT 40404 1958 18 sand sand NN 40404 1958 19 is be VBZ 40404 1958 20 heaped heap VBN 40404 1958 21 in in IN 40404 1958 22 hummocks hummock NNS 40404 1958 23 and and CC 40404 1958 24 much much JJ 40404 1958 25 of of IN 40404 1958 26 the the DT 40404 1958 27 fine fine JJ 40404 1958 28 silt silt NN 40404 1958 29 is be VBZ 40404 1958 30 caught catch VBN 40404 1958 31 and and CC 40404 1958 32 held hold VBN 40404 1958 33 by by IN 40404 1958 34 the the DT 40404 1958 35 forests forest NNS 40404 1958 36 and and CC 40404 1958 37 grassy grassy JJ 40404 1958 38 fields field NNS 40404 1958 39 of of IN 40404 1958 40 the the DT 40404 1958 41 bordering bordering NN 40404 1958 42 hills hill NNS 40404 1958 43 . . . 40404 1959 1 [ [ -LRB- 40404 1959 2 Illustration illustration NN 40404 1959 3 : : : 40404 1959 4 Fig Fig NNP 40404 1959 5 . . . 40404 1960 1 124 124 CD 40404 1960 2 . . . 40404 1961 1 Cross Cross NNP 40404 1961 2 Section Section NNP 40404 1961 3 of of IN 40404 1961 4 Transverse Transverse NNP 40404 1961 5 Dune Dune NNP 40404 1961 6 after after IN 40404 1961 7 Reversal reversal NN 40404 1961 8 of of IN 40404 1961 9 Wind Wind NNP 40404 1961 10 Redraw Redraw NNP 40404 1961 11 diagram diagram NN 40404 1961 12 , , , 40404 1961 13 showing show VBG 40404 1961 14 by by IN 40404 1961 15 dotted dotted JJ 40404 1961 16 line line NN 40404 1961 17 the the DT 40404 1961 18 original original JJ 40404 1961 19 outline outline NN 40404 1961 20 of of IN 40404 1961 21 the the DT 40404 1961 22 dune dune NN 40404 1961 23 ] ] -RRB- 40404 1961 24 The the DT 40404 1961 25 sand sand NN 40404 1961 26 of of IN 40404 1961 27 shore shore NN 40404 1961 28 dunes dune NNS 40404 1961 29 differs differ VBZ 40404 1961 30 little little JJ 40404 1961 31 in in IN 40404 1961 32 composition composition NN 40404 1961 33 and and CC 40404 1961 34 the the DT 40404 1961 35 shape shape NN 40404 1961 36 of of IN 40404 1961 37 its -PRON- PRP$ 40404 1961 38 grains grain NNS 40404 1961 39 from from IN 40404 1961 40 that that DT 40404 1961 41 of of IN 40404 1961 42 the the DT 40404 1961 43 beach beach NN 40404 1961 44 from from IN 40404 1961 45 which which WDT 40404 1961 46 it -PRON- PRP 40404 1961 47 was be VBD 40404 1961 48 derived derive VBN 40404 1961 49 . . . 40404 1962 1 But but CC 40404 1962 2 in in IN 40404 1962 3 deserts desert NNS 40404 1962 4 , , , 40404 1962 5 by by IN 40404 1962 6 the the DT 40404 1962 7 long long JJ 40404 1962 8 wear wear NN 40404 1962 9 of of IN 40404 1962 10 grain grain NN 40404 1962 11 on on IN 40404 1962 12 grain grain NN 40404 1962 13 as as IN 40404 1962 14 they -PRON- PRP 40404 1962 15 are be VBP 40404 1962 16 blown blow VBN 40404 1962 17 hither hither NN 40404 1962 18 and and CC 40404 1962 19 thither thither NN 40404 1962 20 by by IN 40404 1962 21 the the DT 40404 1962 22 wind wind NN 40404 1962 23 , , , 40404 1962 24 all all DT 40404 1962 25 soft soft JJ 40404 1962 26 minerals mineral NNS 40404 1962 27 are be VBP 40404 1962 28 ground grind VBN 40404 1962 29 to to IN 40404 1962 30 powder powder NN 40404 1962 31 and and CC 40404 1962 32 the the DT 40404 1962 33 sand sand NN 40404 1962 34 comes come VBZ 40404 1962 35 to to TO 40404 1962 36 consist consist VB 40404 1962 37 almost almost RB 40404 1962 38 wholly wholly RB 40404 1962 39 of of IN 40404 1962 40 smooth smooth JJ 40404 1962 41 round round JJ 40404 1962 42 grams gram NNS 40404 1962 43 of of IN 40404 1962 44 hard hard JJ 40404 1962 45 quartz quartz NN 40404 1962 46 . . . 40404 1963 1 [ [ -LRB- 40404 1963 2 Illustration illustration NN 40404 1963 3 : : : 40404 1963 4 Fig Fig NNP 40404 1963 5 . . . 40404 1964 1 125 125 CD 40404 1964 2 . . . 40404 1965 1 Dune Dune NNP 40404 1965 2 Sands Sands NNP 40404 1965 3 , , , 40404 1965 4 Shore Shore NNP 40404 1965 5 of of IN 40404 1965 6 Lake Lake NNP 40404 1965 7 Michigan Michigan NNP 40404 1965 8 Account Account NNP 40404 1965 9 for for IN 40404 1965 10 the the DT 40404 1965 11 dead dead JJ 40404 1965 12 forest forest NN 40404 1965 13 , , , 40404 1965 14 for for IN 40404 1965 15 its -PRON- PRP$ 40404 1965 16 leaning lean VBG 40404 1965 17 tree tree NN 40404 1965 18 trunks trunk NNS 40404 1965 19 . . . 40404 1966 1 Is be VBZ 40404 1966 2 the the DT 40404 1966 3 lake lake NN 40404 1966 4 shore shore NN 40404 1966 5 to to IN 40404 1966 6 the the DT 40404 1966 7 right right NN 40404 1966 8 or or CC 40404 1966 9 left left RB 40404 1966 10 ? ? . 40404 1967 1 What what WP 40404 1967 2 has have VBZ 40404 1967 3 been be VBN 40404 1967 4 the the DT 40404 1967 5 history history NN 40404 1967 6 of of IN 40404 1967 7 the the DT 40404 1967 8 landscape landscape NN 40404 1967 9 ? ? . 40404 1967 10 ] ] -RRB- 40404 1968 1 Some some DT 40404 1968 2 marine marine JJ 40404 1968 3 sandstones sandstone NNS 40404 1968 4 , , , 40404 1968 5 such such JJ 40404 1968 6 as as IN 40404 1968 7 the the DT 40404 1968 8 St. St. NNP 40404 1968 9 Peter Peter NNP 40404 1968 10 sandstone sandstone NN 40404 1968 11 of of IN 40404 1968 12 the the DT 40404 1968 13 upper upper JJ 40404 1968 14 Mississippi Mississippi NNP 40404 1968 15 valley valley NN 40404 1968 16 , , , 40404 1968 17 are be VBP 40404 1968 18 composed compose VBN 40404 1968 19 so so RB 40404 1968 20 entirely entirely RB 40404 1968 21 of of IN 40404 1968 22 polished polished JJ 40404 1968 23 spherules spherule NNS 40404 1968 24 of of IN 40404 1968 25 quartz quartz NN 40404 1968 26 that that WDT 40404 1968 27 it -PRON- PRP 40404 1968 28 has have VBZ 40404 1968 29 been be VBN 40404 1968 30 believed believe VBN 40404 1968 31 by by IN 40404 1968 32 some some DT 40404 1968 33 that that IN 40404 1968 34 their -PRON- PRP$ 40404 1968 35 grains grain NNS 40404 1968 36 were be VBD 40404 1968 37 long long RB 40404 1968 38 blown blow VBN 40404 1968 39 about about IN 40404 1968 40 in in IN 40404 1968 41 ancient ancient JJ 40404 1968 42 deserts desert NNS 40404 1968 43 before before IN 40404 1968 44 they -PRON- PRP 40404 1968 45 were be VBD 40404 1968 46 deposited deposit VBN 40404 1968 47 in in IN 40404 1968 48 the the DT 40404 1968 49 sea sea NN 40404 1968 50 . . . 40404 1969 1 [ [ -LRB- 40404 1969 2 Illustration illustration NN 40404 1969 3 : : : 40404 1969 4 Fig Fig NNP 40404 1969 5 . . . 40404 1970 1 126 126 CD 40404 1970 2 . . . 40404 1971 1 Crescentic crescentic JJ 40404 1971 2 Sand Sand NNP 40404 1971 3 Dunes Dunes NNPS 40404 1971 4 , , , 40404 1971 5 Valley Valley NNP 40404 1971 6 of of IN 40404 1971 7 the the DT 40404 1971 8 Columbia Columbia NNP 40404 1971 9 River River NNP 40404 1971 10 Did do VBD 40404 1971 11 the the DT 40404 1971 12 wind wind NN 40404 1971 13 which which WDT 40404 1971 14 shaped shape VBD 40404 1971 15 them -PRON- PRP 40404 1971 16 blow blow VB 40404 1971 17 from from IN 40404 1971 18 the the DT 40404 1971 19 left left NN 40404 1971 20 or or CC 40404 1971 21 from from IN 40404 1971 22 the the DT 40404 1971 23 right right NN 40404 1971 24 ? ? . 40404 1971 25 ] ] -RRB- 40404 1972 1 = = NFP 40404 1972 2 Dust Dust NNP 40404 1972 3 deposits.= deposits.= NNP 40404 1972 4 As as IN 40404 1972 5 desert desert NN 40404 1972 6 sands sand NNS 40404 1972 7 are be VBP 40404 1972 8 composed compose VBN 40404 1972 9 almost almost RB 40404 1972 10 wholly wholly RB 40404 1972 11 of of IN 40404 1972 12 quartz quartz NN 40404 1972 13 , , , 40404 1972 14 we -PRON- PRP 40404 1972 15 may may MD 40404 1972 16 ask ask VB 40404 1972 17 what what WP 40404 1972 18 has have VBZ 40404 1972 19 become become VBN 40404 1972 20 of of IN 40404 1972 21 the the DT 40404 1972 22 softer soft JJR 40404 1972 23 minerals mineral NNS 40404 1972 24 of of IN 40404 1972 25 which which WDT 40404 1972 26 the the DT 40404 1972 27 rocks rock NNS 40404 1972 28 whose whose WP$ 40404 1972 29 disintegration disintegration NN 40404 1972 30 has have VBZ 40404 1972 31 supplied supply VBN 40404 1972 32 the the DT 40404 1972 33 sand sand NN 40404 1972 34 were be VBD 40404 1972 35 in in IN 40404 1972 36 part part NN 40404 1972 37 , , , 40404 1972 38 and and CC 40404 1972 39 often often RB 40404 1972 40 in in IN 40404 1972 41 large large JJ 40404 1972 42 part part NN 40404 1972 43 , , , 40404 1972 44 composed compose VBN 40404 1972 45 . . . 40404 1973 1 The the DT 40404 1973 2 softer soft JJR 40404 1973 3 minerals mineral NNS 40404 1973 4 have have VBP 40404 1973 5 been be VBN 40404 1973 6 ground grind VBN 40404 1973 7 to to IN 40404 1973 8 powder powder NN 40404 1973 9 , , , 40404 1973 10 and and CC 40404 1973 11 little little JJ 40404 1973 12 by by IN 40404 1973 13 little little JJ 40404 1973 14 the the DT 40404 1973 15 quartz quartz NN 40404 1973 16 sand sand NN 40404 1973 17 also also RB 40404 1973 18 is be VBZ 40404 1973 19 worn wear VBN 40404 1973 20 by by IN 40404 1973 21 attrition attrition NN 40404 1973 22 to to IN 40404 1973 23 fine fine JJ 40404 1973 24 dust dust NN 40404 1973 25 . . . 40404 1974 1 Yet yet CC 40404 1974 2 dust dust NN 40404 1974 3 deposits deposit NNS 40404 1974 4 are be VBP 40404 1974 5 scant scant JJ 40404 1974 6 and and CC 40404 1974 7 few few JJ 40404 1974 8 in in IN 40404 1974 9 great great JJ 40404 1974 10 deserts desert NNS 40404 1974 11 such such JJ 40404 1974 12 as as IN 40404 1974 13 the the DT 40404 1974 14 Sahara Sahara NNP 40404 1974 15 . . . 40404 1975 1 The the DT 40404 1975 2 finer fine JJR 40404 1975 3 waste waste NN 40404 1975 4 is be VBZ 40404 1975 5 blown blow VBN 40404 1975 6 beyond beyond IN 40404 1975 7 its -PRON- PRP$ 40404 1975 8 limits limit NNS 40404 1975 9 and and CC 40404 1975 10 laid lay VBN 40404 1975 11 in in RP 40404 1975 12 adjacent adjacent JJ 40404 1975 13 oceans ocean NNS 40404 1975 14 , , , 40404 1975 15 where where WRB 40404 1975 16 it -PRON- PRP 40404 1975 17 adds add VBZ 40404 1975 18 to to IN 40404 1975 19 the the DT 40404 1975 20 muds mud NNS 40404 1975 21 and and CC 40404 1975 22 oozes ooze NNS 40404 1975 23 of of IN 40404 1975 24 their -PRON- PRP$ 40404 1975 25 floors floor NNS 40404 1975 26 , , , 40404 1975 27 and and CC 40404 1975 28 on on IN 40404 1975 29 bordering border VBG 40404 1975 30 steppes steppe NNS 40404 1975 31 and and CC 40404 1975 32 forest forest NN 40404 1975 33 lands land NNS 40404 1975 34 , , , 40404 1975 35 where where WRB 40404 1975 36 it -PRON- PRP 40404 1975 37 is be VBZ 40404 1975 38 bound bind VBN 40404 1975 39 fast fast RB 40404 1975 40 by by IN 40404 1975 41 vegetation vegetation NN 40404 1975 42 and and CC 40404 1975 43 slowly slowly RB 40404 1975 44 accumulates accumulate VBZ 40404 1975 45 in in IN 40404 1975 46 deposits deposit NNS 40404 1975 47 of of IN 40404 1975 48 unstratified unstratified JJ 40404 1975 49 loose loose JJ 40404 1975 50 yellow yellow JJ 40404 1975 51 earth earth NN 40404 1975 52 . . . 40404 1976 1 The the DT 40404 1976 2 fine fine JJ 40404 1976 3 waste waste NN 40404 1976 4 of of IN 40404 1976 5 the the DT 40404 1976 6 Sahara Sahara NNP 40404 1976 7 has have VBZ 40404 1976 8 been be VBN 40404 1976 9 identified identify VBN 40404 1976 10 in in IN 40404 1976 11 dredgings dredging NNS 40404 1976 12 from from IN 40404 1976 13 the the DT 40404 1976 14 bottom bottom NN 40404 1976 15 of of IN 40404 1976 16 the the DT 40404 1976 17 Atlantic Atlantic NNP 40404 1976 18 Ocean Ocean NNP 40404 1976 19 , , , 40404 1976 20 taken take VBN 40404 1976 21 hundreds hundred NNS 40404 1976 22 of of IN 40404 1976 23 miles mile NNS 40404 1976 24 from from IN 40404 1976 25 the the DT 40404 1976 26 coast coast NN 40404 1976 27 of of IN 40404 1976 28 Africa Africa NNP 40404 1976 29 . . . 40404 1977 1 = = NFP 40404 1977 2 Loess.= Loess.= NNP 40404 1977 3 In in IN 40404 1977 4 northern northern JJ 40404 1977 5 China China NNP 40404 1977 6 an an DT 40404 1977 7 area area NN 40404 1977 8 as as RB 40404 1977 9 large large JJ 40404 1977 10 as as IN 40404 1977 11 France France NNP 40404 1977 12 is be VBZ 40404 1977 13 deeply deeply RB 40404 1977 14 covered cover VBN 40404 1977 15 with with IN 40404 1977 16 a a DT 40404 1977 17 yellow yellow JJ 40404 1977 18 pulverulent pulverulent NN 40404 1977 19 earth earth NN 40404 1977 20 called call VBN 40404 1977 21 loess loess NN 40404 1977 22 ( ( -LRB- 40404 1977 23 German german JJ 40404 1977 24 , , , 40404 1977 25 loose loose JJ 40404 1977 26 ) ) -RRB- 40404 1977 27 , , , 40404 1977 28 which which WDT 40404 1977 29 many many JJ 40404 1977 30 consider consider VBP 40404 1977 31 a a DT 40404 1977 32 dust dust NN 40404 1977 33 deposit deposit NN 40404 1977 34 blown blow VBN 40404 1977 35 from from IN 40404 1977 36 the the DT 40404 1977 37 great great JJ 40404 1977 38 Mongolian mongolian JJ 40404 1977 39 desert desert NN 40404 1977 40 lying lie VBG 40404 1977 41 to to IN 40404 1977 42 the the DT 40404 1977 43 west west NN 40404 1977 44 . . . 40404 1978 1 Loess Loess NNP 40404 1978 2 mantles mantle VBZ 40404 1978 3 the the DT 40404 1978 4 recently recently RB 40404 1978 5 uplifted uplifted JJ 40404 1978 6 mountains mountain NNS 40404 1978 7 to to IN 40404 1978 8 the the DT 40404 1978 9 height height NN 40404 1978 10 of of IN 40404 1978 11 eight eight CD 40404 1978 12 thousand thousand CD 40404 1978 13 feet foot NNS 40404 1978 14 and and CC 40404 1978 15 descends descend NNS 40404 1978 16 on on IN 40404 1978 17 the the DT 40404 1978 18 plains plain NNS 40404 1978 19 nearly nearly RB 40404 1978 20 to to IN 40404 1978 21 sea sea NN 40404 1978 22 level level NN 40404 1978 23 . . . 40404 1979 1 Its -PRON- PRP$ 40404 1979 2 texture texture NN 40404 1979 3 and and CC 40404 1979 4 lack lack NN 40404 1979 5 of of IN 40404 1979 6 stratification stratification NN 40404 1979 7 give give VBP 40404 1979 8 it -PRON- PRP 40404 1979 9 a a DT 40404 1979 10 vertical vertical JJ 40404 1979 11 cleavage cleavage NN 40404 1979 12 ; ; : 40404 1979 13 hence hence RB 40404 1979 14 it -PRON- PRP 40404 1979 15 stands stand VBZ 40404 1979 16 in in IN 40404 1979 17 steep steep JJ 40404 1979 18 cliffs cliff NNS 40404 1979 19 on on IN 40404 1979 20 the the DT 40404 1979 21 sides side NNS 40404 1979 22 of of IN 40404 1979 23 the the DT 40404 1979 24 deep deep JJ 40404 1979 25 and and CC 40404 1979 26 narrow narrow JJ 40404 1979 27 trenches trench NNS 40404 1979 28 which which WDT 40404 1979 29 have have VBP 40404 1979 30 been be VBN 40404 1979 31 cut cut VBN 40404 1979 32 in in IN 40404 1979 33 it -PRON- PRP 40404 1979 34 by by IN 40404 1979 35 streams stream NNS 40404 1979 36 . . . 40404 1980 1 On on IN 40404 1980 2 loess loess NN 40404 1980 3 hillsides hillside NNS 40404 1980 4 in in IN 40404 1980 5 China China NNP 40404 1980 6 are be VBP 40404 1980 7 thousands thousand NNS 40404 1980 8 of of IN 40404 1980 9 villages village NNS 40404 1980 10 whose whose WP$ 40404 1980 11 eavelike eavelike JJ 40404 1980 12 dwellings dwelling NNS 40404 1980 13 have have VBP 40404 1980 14 been be VBN 40404 1980 15 excavated excavate VBN 40404 1980 16 in in IN 40404 1980 17 this this DT 40404 1980 18 soft soft JJ 40404 1980 19 , , , 40404 1980 20 yet yet CC 40404 1980 21 firm firm JJ 40404 1980 22 , , , 40404 1980 23 dry dry JJ 40404 1980 24 loam loam NN 40404 1980 25 . . . 40404 1981 1 While while IN 40404 1981 2 dust dust NN 40404 1981 3 falls fall NNS 40404 1981 4 are be VBP 40404 1981 5 common common JJ 40404 1981 6 at at IN 40404 1981 7 the the DT 40404 1981 8 present present JJ 40404 1981 9 time time NN 40404 1981 10 in in IN 40404 1981 11 this this DT 40404 1981 12 region region NN 40404 1981 13 , , , 40404 1981 14 the the DT 40404 1981 15 loess loess NN 40404 1981 16 is be VBZ 40404 1981 17 now now RB 40404 1981 18 being be VBG 40404 1981 19 rapidly rapidly RB 40404 1981 20 denuded denude VBN 40404 1981 21 by by IN 40404 1981 22 streams stream NNS 40404 1981 23 , , , 40404 1981 24 and and CC 40404 1981 25 its -PRON- PRP$ 40404 1981 26 yellow yellow JJ 40404 1981 27 silt silt NN 40404 1981 28 gives give VBZ 40404 1981 29 name name NN 40404 1981 30 to to IN 40404 1981 31 the the DT 40404 1981 32 muddy muddy JJ 40404 1981 33 Hwang Hwang NNP 40404 1981 34 - - HYPH 40404 1981 35 ho ho NNP 40404 1981 36 ( ( -LRB- 40404 1981 37 Yellow Yellow NNP 40404 1981 38 River River NNP 40404 1981 39 ) ) -RRB- 40404 1981 40 , , , 40404 1981 41 and and CC 40404 1981 42 to to IN 40404 1981 43 the the DT 40404 1981 44 Yellow Yellow NNP 40404 1981 45 Sea Sea NNP 40404 1981 46 , , , 40404 1981 47 whose whose WP$ 40404 1981 48 waters water VBZ 40404 1981 49 it -PRON- PRP 40404 1981 50 discolors discolor VBZ 40404 1981 51 for for IN 40404 1981 52 scores score NNS 40404 1981 53 of of IN 40404 1981 54 miles mile NNS 40404 1981 55 from from IN 40404 1981 56 shore shore NN 40404 1981 57 . . . 40404 1982 1 Wind wind NN 40404 1982 2 deposits deposit NNS 40404 1982 3 both both DT 40404 1982 4 of of IN 40404 1982 5 dust dust NN 40404 1982 6 and and CC 40404 1982 7 of of IN 40404 1982 8 sand sand NN 40404 1982 9 may may MD 40404 1982 10 be be VB 40404 1982 11 expected expect VBN 40404 1982 12 to to TO 40404 1982 13 contain contain VB 40404 1982 14 the the DT 40404 1982 15 remains remain NNS 40404 1982 16 of of IN 40404 1982 17 land land NN 40404 1982 18 shells shell NNS 40404 1982 19 , , , 40404 1982 20 bits bit NNS 40404 1982 21 of of IN 40404 1982 22 wood wood NN 40404 1982 23 , , , 40404 1982 24 and and CC 40404 1982 25 bones bone NNS 40404 1982 26 of of IN 40404 1982 27 land land NN 40404 1982 28 animals animal NNS 40404 1982 29 , , , 40404 1982 30 testifying testify VBG 40404 1982 31 to to IN 40404 1982 32 the the DT 40404 1982 33 fact fact NN 40404 1982 34 that that IN 40404 1982 35 they -PRON- PRP 40404 1982 36 were be VBD 40404 1982 37 accumulated accumulate VBN 40404 1982 38 in in IN 40404 1982 39 open open JJ 40404 1982 40 air air NN 40404 1982 41 and and CC 40404 1982 42 not not RB 40404 1982 43 in in IN 40404 1982 44 the the DT 40404 1982 45 sea sea NN 40404 1982 46 or or CC 40404 1982 47 in in IN 40404 1982 48 bodies body NNS 40404 1982 49 of of IN 40404 1982 50 fresh fresh JJ 40404 1982 51 water water NN 40404 1982 52 . . . 40404 1983 1 Wind wind NN 40404 1983 2 Erosion erosion NN 40404 1983 3 [ [ -LRB- 40404 1983 4 Illustration illustration NN 40404 1983 5 : : : 40404 1983 6 Fig Fig NNP 40404 1983 7 . . . 40404 1984 1 127 127 CD 40404 1984 2 . . . 40404 1985 1 Wind wind NN 40404 1985 2 - - HYPH 40404 1985 3 Carved carve VBN 40404 1985 4 Rocks Rocks NNPS 40404 1985 5 , , , 40404 1985 6 Arizona Arizona NNP 40404 1985 7 ] ] -RRB- 40404 1985 8 Sand Sand NNP 40404 1985 9 - - HYPH 40404 1985 10 laden laden JJ 40404 1985 11 currents current NNS 40404 1985 12 of of IN 40404 1985 13 air air NN 40404 1985 14 abrade abrade NNP 40404 1985 15 and and CC 40404 1985 16 smooth smooth JJ 40404 1985 17 and and CC 40404 1985 18 polish polish JJ 40404 1985 19 exposed expose VBN 40404 1985 20 rock rock NN 40404 1985 21 surfaces surface NNS 40404 1985 22 , , , 40404 1985 23 acting act VBG 40404 1985 24 in in IN 40404 1985 25 much much RB 40404 1985 26 the the DT 40404 1985 27 same same JJ 40404 1985 28 way way NN 40404 1985 29 as as IN 40404 1985 30 does do VBZ 40404 1985 31 the the DT 40404 1985 32 jet jet NN 40404 1985 33 of of IN 40404 1985 34 steam steam NN 40404 1985 35 fed feed VBN 40404 1985 36 with with IN 40404 1985 37 sharp sharp JJ 40404 1985 38 sand sand NN 40404 1985 39 , , , 40404 1985 40 which which WDT 40404 1985 41 is be VBZ 40404 1985 42 used use VBN 40404 1985 43 in in IN 40404 1985 44 the the DT 40404 1985 45 manufacture manufacture NN 40404 1985 46 of of IN 40404 1985 47 ground ground NN 40404 1985 48 glass glass NN 40404 1985 49 . . . 40404 1986 1 Indeed indeed RB 40404 1986 2 , , , 40404 1986 3 in in IN 40404 1986 4 a a DT 40404 1986 5 single single JJ 40404 1986 6 storm storm NN 40404 1986 7 at at IN 40404 1986 8 Cape Cape NNP 40404 1986 9 Cod cod VBP 40404 1986 10 a a DT 40404 1986 11 plate plate NN 40404 1986 12 glass glass NN 40404 1986 13 of of IN 40404 1986 14 a a DT 40404 1986 15 lighthouse lighthouse NN 40404 1986 16 was be VBD 40404 1986 17 so so RB 40404 1986 18 ground grind VBN 40404 1986 19 by by IN 40404 1986 20 flying fly VBG 40404 1986 21 sand sand NN 40404 1986 22 that that IN 40404 1986 23 its -PRON- PRP$ 40404 1986 24 transparency transparency NN 40404 1986 25 was be VBD 40404 1986 26 destroyed destroy VBN 40404 1986 27 and and CC 40404 1986 28 its -PRON- PRP$ 40404 1986 29 removal removal NN 40404 1986 30 made make VBD 40404 1986 31 necessary necessary JJ 40404 1986 32 . . . 40404 1987 1 [ [ -LRB- 40404 1987 2 Illustration illustration NN 40404 1987 3 : : : 40404 1987 4 Fig Fig NNP 40404 1987 5 . . . 40404 1988 1 128 128 CD 40404 1988 2 . . . 40404 1989 1 A a DT 40404 1989 2 Wind Wind NNP 40404 1989 3 - - HYPH 40404 1989 4 Carved carve VBN 40404 1989 5 Pebble pebble NN 40404 1989 6 , , , 40404 1989 7 Cape Cape NNP 40404 1989 8 Cod Cod NNP 40404 1989 9 ] ] -RRB- 40404 1989 10 Telegraph Telegraph NNP 40404 1989 11 poles pole NNS 40404 1989 12 and and CC 40404 1989 13 wires wire NNS 40404 1989 14 whetted whet VBN 40404 1989 15 by by IN 40404 1989 16 wind wind NN 40404 1989 17 - - HYPH 40404 1989 18 blown blow VBN 40404 1989 19 sands sand NNS 40404 1989 20 are be VBP 40404 1989 21 destroyed destroy VBN 40404 1989 22 within within IN 40404 1989 23 a a DT 40404 1989 24 few few JJ 40404 1989 25 years year NNS 40404 1989 26 . . . 40404 1990 1 In in IN 40404 1990 2 rocks rock NNS 40404 1990 3 of of IN 40404 1990 4 unequal unequal JJ 40404 1990 5 resistance resistance NN 40404 1990 6 the the DT 40404 1990 7 harder hard JJR 40404 1990 8 parts part NNS 40404 1990 9 are be VBP 40404 1990 10 left leave VBN 40404 1990 11 in in IN 40404 1990 12 relief relief NN 40404 1990 13 , , , 40404 1990 14 while while IN 40404 1990 15 the the DT 40404 1990 16 softer soft JJR 40404 1990 17 are be VBP 40404 1990 18 etched etch VBN 40404 1990 19 away away RB 40404 1990 20 . . . 40404 1991 1 Thus thus RB 40404 1991 2 in in IN 40404 1991 3 the the DT 40404 1991 4 pass pass NN 40404 1991 5 of of IN 40404 1991 6 San San NNP 40404 1991 7 Bernardino Bernardino NNP 40404 1991 8 , , , 40404 1991 9 Cal Cal NNP 40404 1991 10 . . NNP 40404 1991 11 , , , 40404 1991 12 through through IN 40404 1991 13 which which WDT 40404 1991 14 strong strong JJ 40404 1991 15 winds wind NNS 40404 1991 16 stream stream VBP 40404 1991 17 from from IN 40404 1991 18 the the DT 40404 1991 19 west west NNP 40404 1991 20 , , , 40404 1991 21 crystals crystal NNS 40404 1991 22 of of IN 40404 1991 23 garnet garnet NN 40404 1991 24 are be VBP 40404 1991 25 left leave VBN 40404 1991 26 projecting project VBG 40404 1991 27 on on IN 40404 1991 28 delicate delicate JJ 40404 1991 29 rock rock NN 40404 1991 30 fingers finger NNS 40404 1991 31 from from IN 40404 1991 32 the the DT 40404 1991 33 softer soft JJR 40404 1991 34 rock rock NN 40404 1991 35 in in IN 40404 1991 36 which which WDT 40404 1991 37 they -PRON- PRP 40404 1991 38 were be VBD 40404 1991 39 imbedded imbed VBN 40404 1991 40 . . . 40404 1992 1 Wind wind NN 40404 1992 2 - - HYPH 40404 1992 3 carved carve VBN 40404 1992 4 pebbles pebble NNS 40404 1992 5 are be VBP 40404 1992 6 characteristically characteristically RB 40404 1992 7 planed plane VBN 40404 1992 8 , , , 40404 1992 9 the the DT 40404 1992 10 facets facet NNS 40404 1992 11 meeting meeting NN 40404 1992 12 along along IN 40404 1992 13 a a DT 40404 1992 14 summit summit NN 40404 1992 15 ridge ridge NN 40404 1992 16 or or CC 40404 1992 17 at at IN 40404 1992 18 a a DT 40404 1992 19 point point NN 40404 1992 20 like like IN 40404 1992 21 that that DT 40404 1992 22 of of IN 40404 1992 23 a a DT 40404 1992 24 pyramid pyramid NN 40404 1992 25 . . . 40404 1993 1 We -PRON- PRP 40404 1993 2 may may MD 40404 1993 3 suppose suppose VB 40404 1993 4 that that IN 40404 1993 5 these these DT 40404 1993 6 facets facet NNS 40404 1993 7 were be VBD 40404 1993 8 ground grind VBN 40404 1993 9 by by IN 40404 1993 10 prevalent prevalent JJ 40404 1993 11 winds wind NNS 40404 1993 12 from from IN 40404 1993 13 certain certain JJ 40404 1993 14 directions direction NNS 40404 1993 15 , , , 40404 1993 16 or or CC 40404 1993 17 that that IN 40404 1993 18 from from IN 40404 1993 19 time time NN 40404 1993 20 to to IN 40404 1993 21 time time NN 40404 1993 22 the the DT 40404 1993 23 stone stone NN 40404 1993 24 was be VBD 40404 1993 25 undermined undermine VBN 40404 1993 26 and and CC 40404 1993 27 rolled roll VBN 40404 1993 28 over over RP 40404 1993 29 as as IN 40404 1993 30 the the DT 40404 1993 31 sand sand NN 40404 1993 32 beneath beneath IN 40404 1993 33 it -PRON- PRP 40404 1993 34 was be VBD 40404 1993 35 blown blow VBN 40404 1993 36 away away RB 40404 1993 37 on on IN 40404 1993 38 the the DT 40404 1993 39 windward windward JJ 40404 1993 40 side side NN 40404 1993 41 , , , 40404 1993 42 thus thus RB 40404 1993 43 exposing expose VBG 40404 1993 44 fresh fresh JJ 40404 1993 45 surfaces surface NNS 40404 1993 46 to to IN 40404 1993 47 the the DT 40404 1993 48 driving drive VBG 40404 1993 49 sand sand NN 40404 1993 50 . . . 40404 1994 1 Such such JJ 40404 1994 2 wind wind NN 40404 1994 3 - - HYPH 40404 1994 4 carved carve VBN 40404 1994 5 pebbles pebble NNS 40404 1994 6 are be VBP 40404 1994 7 sometimes sometimes RB 40404 1994 8 found find VBN 40404 1994 9 in in IN 40404 1994 10 ancient ancient JJ 40404 1994 11 rocks rock NNS 40404 1994 12 and and CC 40404 1994 13 may may MD 40404 1994 14 be be VB 40404 1994 15 accepted accept VBN 40404 1994 16 as as IN 40404 1994 17 evidence evidence NN 40404 1994 18 that that IN 40404 1994 19 the the DT 40404 1994 20 sands sand NNS 40404 1994 21 of of IN 40404 1994 22 which which WDT 40404 1994 23 the the DT 40404 1994 24 rocks rock NNS 40404 1994 25 are be VBP 40404 1994 26 composed compose VBN 40404 1994 27 were be VBD 40404 1994 28 blown blow VBN 40404 1994 29 about about IN 40404 1994 30 by by IN 40404 1994 31 the the DT 40404 1994 32 wind wind NN 40404 1994 33 . . . 40404 1995 1 = = NFP 40404 1995 2 Deflation.= Deflation.= NNP 40404 1995 3 In in IN 40404 1995 4 the the DT 40404 1995 5 denudation denudation NN 40404 1995 6 of of IN 40404 1995 7 an an DT 40404 1995 8 arid arid NN 40404 1995 9 region region NN 40404 1995 10 , , , 40404 1995 11 wind wind NN 40404 1995 12 erosion erosion NN 40404 1995 13 is be VBZ 40404 1995 14 comparatively comparatively RB 40404 1995 15 ineffective ineffective JJ 40404 1995 16 as as IN 40404 1995 17 compared compare VBN 40404 1995 18 with with IN 40404 1995 19 deflation deflation NN 40404 1995 20 ( ( -LRB- 40404 1995 21 Latin Latin NNP 40404 1995 22 , , , 40404 1995 23 _ _ NNP 40404 1995 24 de de NNP 40404 1995 25 _ _ NNP 40404 1995 26 , , , 40404 1995 27 from from IN 40404 1995 28 ; ; : 40404 1995 29 _ _ NNP 40404 1995 30 flare flare NN 40404 1995 31 _ _ NNP 40404 1995 32 , , , 40404 1995 33 to to IN 40404 1995 34 blow),--a blow),--a CD 40404 1995 35 term term NN 40404 1995 36 by by IN 40404 1995 37 which which WDT 40404 1995 38 is be VBZ 40404 1995 39 meant mean VBN 40404 1995 40 the the DT 40404 1995 41 constant constant JJ 40404 1995 42 removal removal NN 40404 1995 43 of of IN 40404 1995 44 waste waste NN 40404 1995 45 by by IN 40404 1995 46 the the DT 40404 1995 47 wind wind NN 40404 1995 48 , , , 40404 1995 49 leaving leave VBG 40404 1995 50 the the DT 40404 1995 51 rocks rock NNS 40404 1995 52 bare bare JJ 40404 1995 53 to to IN 40404 1995 54 the the DT 40404 1995 55 continuous continuous JJ 40404 1995 56 attack attack NN 40404 1995 57 of of IN 40404 1995 58 the the DT 40404 1995 59 weather weather NN 40404 1995 60 . . . 40404 1996 1 In in IN 40404 1996 2 moist moist JJ 40404 1996 3 climates climate VBZ 40404 1996 4 denudation denudation NN 40404 1996 5 is be VBZ 40404 1996 6 continually continually RB 40404 1996 7 impeded impede VBN 40404 1996 8 by by IN 40404 1996 9 the the DT 40404 1996 10 mantle mantle NN 40404 1996 11 of of IN 40404 1996 12 waste waste NNP 40404 1996 13 and and CC 40404 1996 14 its -PRON- PRP$ 40404 1996 15 cover cover NN 40404 1996 16 of of IN 40404 1996 17 vegetation vegetation NN 40404 1996 18 , , , 40404 1996 19 and and CC 40404 1996 20 the the DT 40404 1996 21 land land NN 40404 1996 22 surface surface NN 40404 1996 23 can can MD 40404 1996 24 be be VB 40404 1996 25 lowered lower VBN 40404 1996 26 no no RB 40404 1996 27 faster fast RBR 40404 1996 28 than than IN 40404 1996 29 the the DT 40404 1996 30 waste waste NN 40404 1996 31 is be VBZ 40404 1996 32 removed remove VBN 40404 1996 33 by by IN 40404 1996 34 running run VBG 40404 1996 35 water water NN 40404 1996 36 . . . 40404 1997 1 Deep deep JJ 40404 1997 2 residual residual JJ 40404 1997 3 soils soil NNS 40404 1997 4 come come VBP 40404 1997 5 to to TO 40404 1997 6 protect protect VB 40404 1997 7 all all DT 40404 1997 8 regions region NNS 40404 1997 9 of of IN 40404 1997 10 moderate moderate JJ 40404 1997 11 slope slope NN 40404 1997 12 , , , 40404 1997 13 concealing conceal VBG 40404 1997 14 from from IN 40404 1997 15 view view NN 40404 1997 16 the the DT 40404 1997 17 rock rock NN 40404 1997 18 structure structure NN 40404 1997 19 , , , 40404 1997 20 and and CC 40404 1997 21 the the DT 40404 1997 22 various various JJ 40404 1997 23 forms form NNS 40404 1997 24 of of IN 40404 1997 25 the the DT 40404 1997 26 land land NN 40404 1997 27 are be VBP 40404 1997 28 due due JJ 40404 1997 29 more more JJR 40404 1997 30 to to IN 40404 1997 31 the the DT 40404 1997 32 agencies agency NNS 40404 1997 33 of of IN 40404 1997 34 erosion erosion NN 40404 1997 35 and and CC 40404 1997 36 transportation transportation NN 40404 1997 37 than than IN 40404 1997 38 to to IN 40404 1997 39 differences difference NNS 40404 1997 40 in in IN 40404 1997 41 the the DT 40404 1997 42 resistance resistance NN 40404 1997 43 of of IN 40404 1997 44 the the DT 40404 1997 45 underlying underlie VBG 40404 1997 46 rocks rock NNS 40404 1997 47 . . . 40404 1998 1 [ [ -LRB- 40404 1998 2 Illustration illustration NN 40404 1998 3 : : : 40404 1998 4 Fig Fig NNP 40404 1998 5 . . . 40404 1999 1 129 129 CD 40404 1999 2 . . . 40404 2000 1 Mesa Mesa NNP 40404 2000 2 Verde Verde NNP 40404 2000 3 , , , 40404 2000 4 Colorado Colorado NNP 40404 2000 5 In in IN 40404 2000 6 the the DT 40404 2000 7 distance distance NN 40404 2000 8 on on IN 40404 2000 9 the the DT 40404 2000 10 left left NN 40404 2000 11 are be VBP 40404 2000 12 high high JJ 40404 2000 13 volcanic volcanic JJ 40404 2000 14 mountains mountain NNS 40404 2000 15 . . . 40404 2001 1 On on IN 40404 2001 2 the the DT 40404 2001 3 extreme extreme JJ 40404 2001 4 right right NN 40404 2001 5 are be VBP 40404 2001 6 seen see VBN 40404 2001 7 outliers outlier NNS 40404 2001 8 of of IN 40404 2001 9 strata stratum NNS 40404 2001 10 which which WDT 40404 2001 11 once once RB 40404 2001 12 covered cover VBD 40404 2001 13 the the DT 40404 2001 14 region region NN 40404 2001 15 of of IN 40404 2001 16 the the DT 40404 2001 17 mesa mesa NN 40404 2001 18 ] ] -RRB- 40404 2001 19 But but CC 40404 2001 20 in in IN 40404 2001 21 arid arid JJ 40404 2001 22 regions region NNS 40404 2001 23 the the DT 40404 2001 24 mantle mantle NN 40404 2001 25 is be VBZ 40404 2001 26 rapidly rapidly RB 40404 2001 27 removed remove VBN 40404 2001 28 , , , 40404 2001 29 even even RB 40404 2001 30 from from IN 40404 2001 31 well well JJ 40404 2001 32 - - HYPH 40404 2001 33 nigh nigh JJ 40404 2001 34 level level NN 40404 2001 35 plains plain NNS 40404 2001 36 and and CC 40404 2001 37 plateaus plateaus NN 40404 2001 38 , , , 40404 2001 39 by by IN 40404 2001 40 the the DT 40404 2001 41 sweep sweep NN 40404 2001 42 of of IN 40404 2001 43 the the DT 40404 2001 44 wind wind NN 40404 2001 45 and and CC 40404 2001 46 the the DT 40404 2001 47 wash wash NN 40404 2001 48 of of IN 40404 2001 49 occasional occasional JJ 40404 2001 50 rains rain NNS 40404 2001 51 . . . 40404 2002 1 The the DT 40404 2002 2 geological geological JJ 40404 2002 3 structure structure NN 40404 2002 4 of of IN 40404 2002 5 these these DT 40404 2002 6 regions region NNS 40404 2002 7 of of IN 40404 2002 8 naked naked JJ 40404 2002 9 rock rock NN 40404 2002 10 can can MD 40404 2002 11 be be VB 40404 2002 12 read read VBN 40404 2002 13 as as RB 40404 2002 14 far far RB 40404 2002 15 as as IN 40404 2002 16 the the DT 40404 2002 17 eye eye NN 40404 2002 18 can can MD 40404 2002 19 see see VB 40404 2002 20 , , , 40404 2002 21 and and CC 40404 2002 22 it -PRON- PRP 40404 2002 23 is be VBZ 40404 2002 24 to to IN 40404 2002 25 this this DT 40404 2002 26 structure structure NN 40404 2002 27 that that IN 40404 2002 28 the the DT 40404 2002 29 forms form NNS 40404 2002 30 of of IN 40404 2002 31 the the DT 40404 2002 32 land land NN 40404 2002 33 are be VBP 40404 2002 34 there there EX 40404 2002 35 largely largely RB 40404 2002 36 due due JJ 40404 2002 37 . . . 40404 2003 1 In in IN 40404 2003 2 a a DT 40404 2003 3 land land NN 40404 2003 4 mass mass NN 40404 2003 5 of of IN 40404 2003 6 horizontal horizontal JJ 40404 2003 7 strata strata NN 40404 2003 8 , , , 40404 2003 9 for for IN 40404 2003 10 example example NN 40404 2003 11 , , , 40404 2003 12 any any DT 40404 2003 13 softer soft JJR 40404 2003 14 surface surface NN 40404 2003 15 rocks rock NNS 40404 2003 16 wear wear VBP 40404 2003 17 down down RP 40404 2003 18 to to IN 40404 2003 19 some some DT 40404 2003 20 underlying underlying JJ 40404 2003 21 , , , 40404 2003 22 resistant resistant JJ 40404 2003 23 stratum stratum NN 40404 2003 24 , , , 40404 2003 25 and and CC 40404 2003 26 this this DT 40404 2003 27 for for IN 40404 2003 28 a a DT 40404 2003 29 while while NN 40404 2003 30 forms form NNS 40404 2003 31 the the DT 40404 2003 32 surface surface NN 40404 2003 33 of of IN 40404 2003 34 a a DT 40404 2003 35 level level NN 40404 2003 36 plateau plateau NN 40404 2003 37 ( ( -LRB- 40404 2003 38 Fig fig NN 40404 2003 39 . . . 40404 2004 1 129 129 CD 40404 2004 2 ) ) -RRB- 40404 2004 3 . . . 40404 2005 1 The the DT 40404 2005 2 edges edge NNS 40404 2005 3 of of IN 40404 2005 4 the the DT 40404 2005 5 capping cap VBG 40404 2005 6 layer layer NN 40404 2005 7 , , , 40404 2005 8 together together RB 40404 2005 9 with with IN 40404 2005 10 those those DT 40404 2005 11 of of IN 40404 2005 12 any any DT 40404 2005 13 softer soft JJR 40404 2005 14 layers layer NNS 40404 2005 15 beneath beneath IN 40404 2005 16 it -PRON- PRP 40404 2005 17 , , , 40404 2005 18 wear wear VBP 40404 2005 19 back back RP 40404 2005 20 in in IN 40404 2005 21 steep steep JJ 40404 2005 22 cliffs cliff NNS 40404 2005 23 , , , 40404 2005 24 dissected dissect VBN 40404 2005 25 by by IN 40404 2005 26 the the DT 40404 2005 27 valleys valley NNS 40404 2005 28 of of IN 40404 2005 29 wet wet JJ 40404 2005 30 - - HYPH 40404 2005 31 weather weather NN 40404 2005 32 streams stream NNS 40404 2005 33 and and CC 40404 2005 34 often often RB 40404 2005 35 swept sweep VBD 40404 2005 36 bare bare JJ 40404 2005 37 to to IN 40404 2005 38 the the DT 40404 2005 39 base base NN 40404 2005 40 by by IN 40404 2005 41 the the DT 40404 2005 42 wind wind NN 40404 2005 43 . . . 40404 2006 1 As as IN 40404 2006 2 they -PRON- PRP 40404 2006 3 are be VBP 40404 2006 4 little little RB 40404 2006 5 protected protect VBN 40404 2006 6 by by IN 40404 2006 7 talus talu NNS 40404 2006 8 , , , 40404 2006 9 which which WDT 40404 2006 10 commonly commonly RB 40404 2006 11 is be VBZ 40404 2006 12 removed remove VBN 40404 2006 13 about about IN 40404 2006 14 as as RB 40404 2006 15 fast fast RB 40404 2006 16 as as IN 40404 2006 17 formed form VBN 40404 2006 18 , , , 40404 2006 19 these these DT 40404 2006 20 escarpments escarpment NNS 40404 2006 21 and and CC 40404 2006 22 the the DT 40404 2006 23 walls wall NNS 40404 2006 24 of of IN 40404 2006 25 the the DT 40404 2006 26 valleys valleys NNP 40404 2006 27 retreat retreat NN 40404 2006 28 indefinitely indefinitely RB 40404 2006 29 , , , 40404 2006 30 exposing expose VBG 40404 2006 31 some some DT 40404 2006 32 hard hard JJ 40404 2006 33 stratum stratum NN 40404 2006 34 beneath beneath IN 40404 2006 35 which which WDT 40404 2006 36 forms form VBZ 40404 2006 37 the the DT 40404 2006 38 floor floor NN 40404 2006 39 of of IN 40404 2006 40 a a DT 40404 2006 41 widening widen VBG 40404 2006 42 terrace terrace NN 40404 2006 43 . . . 40404 2007 1 The the DT 40404 2007 2 high high JJ 40404 2007 3 plateaus plateaus NN 40404 2007 4 of of IN 40404 2007 5 northern northern JJ 40404 2007 6 Arizona Arizona NNP 40404 2007 7 and and CC 40404 2007 8 southern southern JJ 40404 2007 9 Utah Utah NNP 40404 2007 10 ( ( -LRB- 40404 2007 11 Fig Fig NNP 40404 2007 12 . . . 40404 2008 1 130 130 CD 40404 2008 2 ) ) -RRB- 40404 2008 3 , , , 40404 2008 4 north north RB 40404 2008 5 of of IN 40404 2008 6 the the DT 40404 2008 7 Grand Grand NNP 40404 2008 8 Canyon Canyon NNP 40404 2008 9 of of IN 40404 2008 10 the the DT 40404 2008 11 Colorado Colorado NNP 40404 2008 12 River River NNP 40404 2008 13 , , , 40404 2008 14 are be VBP 40404 2008 15 composed compose VBN 40404 2008 16 of of IN 40404 2008 17 stratified stratified JJ 40404 2008 18 rocks rock NNS 40404 2008 19 more more JJR 40404 2008 20 than than IN 40404 2008 21 ten ten CD 40404 2008 22 thousand thousand CD 40404 2008 23 feet foot NNS 40404 2008 24 thick thick JJ 40404 2008 25 and and CC 40404 2008 26 of of IN 40404 2008 27 very very RB 40404 2008 28 gentle gentle JJ 40404 2008 29 inclination inclination NN 40404 2008 30 northward northward RB 40404 2008 31 . . . 40404 2009 1 From from IN 40404 2009 2 the the DT 40404 2009 3 broad broad JJ 40404 2009 4 plat plat JJ 40404 2009 5 form form NN 40404 2009 6 in in IN 40404 2009 7 which which WDT 40404 2009 8 the the DT 40404 2009 9 canyon canyon NN 40404 2009 10 has have VBZ 40404 2009 11 been be VBN 40404 2009 12 cut cut VBN 40404 2009 13 rises rise VBZ 40404 2009 14 a a DT 40404 2009 15 series series NN 40404 2009 16 of of IN 40404 2009 17 gigantic gigantic JJ 40404 2009 18 stairs stair NNS 40404 2009 19 , , , 40404 2009 20 which which WDT 40404 2009 21 are be VBP 40404 2009 22 often often RB 40404 2009 23 more more JJR 40404 2009 24 than than IN 40404 2009 25 one one CD 40404 2009 26 thousand thousand CD 40404 2009 27 feet foot NNS 40404 2009 28 high high JJ 40404 2009 29 and and CC 40404 2009 30 a a DT 40404 2009 31 score score NN 40404 2009 32 or or CC 40404 2009 33 more more JJR 40404 2009 34 of of IN 40404 2009 35 miles mile NNS 40404 2009 36 in in IN 40404 2009 37 breadth breadth NN 40404 2009 38 . . . 40404 2010 1 The the DT 40404 2010 2 retreating retreat VBG 40404 2010 3 escarpments escarpment NNS 40404 2010 4 , , , 40404 2010 5 the the DT 40404 2010 6 cliffs cliff NNS 40404 2010 7 of of IN 40404 2010 8 the the DT 40404 2010 9 mesas mesas NN 40404 2010 10 and and CC 40404 2010 11 buttes butte NNS 40404 2010 12 which which WDT 40404 2010 13 they -PRON- PRP 40404 2010 14 have have VBP 40404 2010 15 left leave VBN 40404 2010 16 behind behind RB 40404 2010 17 as as IN 40404 2010 18 outliers outlier NNS 40404 2010 19 , , , 40404 2010 20 and and CC 40404 2010 21 the the DT 40404 2010 22 walls wall NNS 40404 2010 23 of of IN 40404 2010 24 the the DT 40404 2010 25 ravines ravine NNS 40404 2010 26 are be VBP 40404 2010 27 carved carve VBN 40404 2010 28 into into IN 40404 2010 29 noble noble JJ 40404 2010 30 architectural architectural JJ 40404 2010 31 forms form NNS 40404 2010 32 -- -- : 40404 2010 33 into into IN 40404 2010 34 cathedrals cathedral NNS 40404 2010 35 , , , 40404 2010 36 pyramids pyramid NNS 40404 2010 37 , , , 40404 2010 38 amphitheaters amphitheater NNS 40404 2010 39 , , , 40404 2010 40 towers tower NNS 40404 2010 41 , , , 40404 2010 42 arches arch NNS 40404 2010 43 , , , 40404 2010 44 and and CC 40404 2010 45 colonnades colonnade NNS 40404 2010 46 -- -- : 40404 2010 47 by by IN 40404 2010 48 the the DT 40404 2010 49 processes process NNS 40404 2010 50 of of IN 40404 2010 51 weathering weather VBG 40404 2010 52 aided aid VBN 40404 2010 53 by by IN 40404 2010 54 deflation deflation NN 40404 2010 55 . . . 40404 2011 1 It -PRON- PRP 40404 2011 2 is be VBZ 40404 2011 3 thus thus RB 40404 2011 4 by by IN 40404 2011 5 the the DT 40404 2011 6 help help NN 40404 2011 7 of of IN 40404 2011 8 the the DT 40404 2011 9 action action NN 40404 2011 10 of of IN 40404 2011 11 the the DT 40404 2011 12 wind wind NN 40404 2011 13 that that WDT 40404 2011 14 great great JJ 40404 2011 15 plateaus plateaus NN 40404 2011 16 in in IN 40404 2011 17 arid arid NN 40404 2011 18 regions region NNS 40404 2011 19 are be VBP 40404 2011 20 dissected dissect VBN 40404 2011 21 and and CC 40404 2011 22 at at IN 40404 2011 23 last last JJ 40404 2011 24 are be VBP 40404 2011 25 smoothed smooth VBN 40404 2011 26 away away RB 40404 2011 27 to to IN 40404 2011 28 waterless waterless NN 40404 2011 29 plains plain NNS 40404 2011 30 , , , 40404 2011 31 either either CC 40404 2011 32 composed compose VBN 40404 2011 33 of of IN 40404 2011 34 naked naked JJ 40404 2011 35 rock rock NN 40404 2011 36 , , , 40404 2011 37 or or CC 40404 2011 38 strewed strew VBN 40404 2011 39 with with IN 40404 2011 40 residual residual JJ 40404 2011 41 gravels gravel NNS 40404 2011 42 , , , 40404 2011 43 or or CC 40404 2011 44 covered cover VBN 40404 2011 45 with with IN 40404 2011 46 drifting drift VBG 40404 2011 47 residual residual JJ 40404 2011 48 sand sand NN 40404 2011 49 . . . 40404 2012 1 [ [ -LRB- 40404 2012 2 Illustration illustration NN 40404 2012 3 : : : 40404 2012 4 Fig Fig NNP 40404 2012 5 . . . 40404 2013 1 130 130 CD 40404 2013 2 . . . 40404 2014 1 North North NNP 40404 2014 2 - - HYPH 40404 2014 3 South South NNP 40404 2014 4 Section Section NNP 40404 2014 5 , , , 40404 2014 6 Eighty Eighty NNP 40404 2014 7 - - HYPH 40404 2014 8 Five Five NNP 40404 2014 9 Miles mile NNS 40404 2014 10 Long long RB 40404 2014 11 , , , 40404 2014 12 across across IN 40404 2014 13 the the DT 40404 2014 14 Plateau Plateau NNP 40404 2014 15 North North NNP 40404 2014 16 of of IN 40404 2014 17 the the DT 40404 2014 18 Grand Grand NNP 40404 2014 19 Canyon Canyon NNP 40404 2014 20 of of IN 40404 2014 21 the the DT 40404 2014 22 Colorado Colorado NNP 40404 2014 23 River River NNP 40404 2014 24 , , , 40404 2014 25 Arizona Arizona NNP 40404 2014 26 , , , 40404 2014 27 showing show VBG 40404 2014 28 Retreating Retreating NNP 40404 2014 29 Escarpments Escarpments NNPS 40404 2014 30 _ _ NNP 40404 2014 31 O O NNP 40404 2014 32 _ _ NNP 40404 2014 33 , , , 40404 2014 34 outliers outlier NNS 40404 2014 35 ; ; : 40404 2014 36 _ _ NNP 40404 2014 37 V V NNP 40404 2014 38 _ _ NNP 40404 2014 39 , , , 40404 2014 40 canyon canyon NN 40404 2014 41 of of IN 40404 2014 42 the the DT 40404 2014 43 Colorado Colorado NNP 40404 2014 44 ; ; : 40404 2014 45 _ _ NNP 40404 2014 46 A A NNP 40404 2014 47 - - HYPH 40404 2014 48 H H NNP 40404 2014 49 _ _ NNP 40404 2014 50 , , , 40404 2014 51 rock rock NN 40404 2014 52 systems system NNS 40404 2014 53 from from IN 40404 2014 54 the the DT 40404 2014 55 Archean Archean NNP 40404 2014 56 to to IN 40404 2014 57 the the DT 40404 2014 58 Tertiary tertiary NN 40404 2014 59 ; ; : 40404 2014 60 _ _ NNP 40404 2014 61 P P NNP 40404 2014 62 _ _ NNP 40404 2014 63 , , , 40404 2014 64 platform platform NN 40404 2014 65 of of IN 40404 2014 66 the the DT 40404 2014 67 plateau plateau NN 40404 2014 68 from from IN 40404 2014 69 which which WDT 40404 2014 70 the the DT 40404 2014 71 once once RB 40404 2014 72 overlying overlying NN 40404 2014 73 rocks rock NNS 40404 2014 74 have have VBP 40404 2014 75 been be VBN 40404 2014 76 stripped strip VBN 40404 2014 77 ; ; : 40404 2014 78 dotted dotted JJ 40404 2014 79 lines line NNS 40404 2014 80 indicate indicate VBP 40404 2014 81 probable probable JJ 40404 2014 82 former former JJ 40404 2014 83 extension extension NN 40404 2014 84 of of IN 40404 2014 85 the the DT 40404 2014 86 strata strata NN 40404 2014 87 . . . 40404 2015 1 How how WRB 40404 2015 2 thick thick JJ 40404 2015 3 is be VBZ 40404 2015 4 the the DT 40404 2015 5 mass mass NN 40404 2015 6 of of IN 40404 2015 7 strata strata NN 40404 2015 8 which which WDT 40404 2015 9 has have VBZ 40404 2015 10 been be VBN 40404 2015 11 removed remove VBN 40404 2015 12 from from IN 40404 2015 13 over over IN 40404 2015 14 the the DT 40404 2015 15 platform platform NN 40404 2015 16 ? ? . 40404 2016 1 Has have VBZ 40404 2016 2 this this DT 40404 2016 3 work work NN 40404 2016 4 been be VBN 40404 2016 5 accomplished accomplish VBN 40404 2016 6 while while IN 40404 2016 7 the the DT 40404 2016 8 Colorado Colorado NNP 40404 2016 9 River River NNP 40404 2016 10 has have VBZ 40404 2016 11 been be VBN 40404 2016 12 cutting cut VBG 40404 2016 13 its -PRON- PRP$ 40404 2016 14 present present JJ 40404 2016 15 canyon canyon NN 40404 2016 16 ? ? . 40404 2016 17 ] ] -RRB- 40404 2017 1 The the DT 40404 2017 2 specific specific JJ 40404 2017 3 gravity gravity NN 40404 2017 4 of of IN 40404 2017 5 air air NN 40404 2017 6 is be VBZ 40404 2017 7 1/823 1/823 CD 40404 2017 8 that that DT 40404 2017 9 of of IN 40404 2017 10 water water NN 40404 2017 11 . . . 40404 2018 1 How how WRB 40404 2018 2 does do VBZ 40404 2018 3 this this DT 40404 2018 4 fact fact NN 40404 2018 5 affect affect VB 40404 2018 6 the the DT 40404 2018 7 weight weight NN 40404 2018 8 of of IN 40404 2018 9 the the DT 40404 2018 10 material material NN 40404 2018 11 which which WDT 40404 2018 12 each each DT 40404 2018 13 can can MD 40404 2018 14 carry carry VB 40404 2018 15 at at IN 40404 2018 16 the the DT 40404 2018 17 same same JJ 40404 2018 18 velocity velocity NN 40404 2018 19 ? ? . 40404 2019 1 If if IN 40404 2019 2 the the DT 40404 2019 3 rainfall rainfall NN 40404 2019 4 should should MD 40404 2019 5 lessen lessen VB 40404 2019 6 in in IN 40404 2019 7 your -PRON- PRP$ 40404 2019 8 own own JJ 40404 2019 9 state state NN 40404 2019 10 to to IN 40404 2019 11 from from IN 40404 2019 12 five five CD 40404 2019 13 to to TO 40404 2019 14 ten ten CD 40404 2019 15 inches inch NNS 40404 2019 16 a a DT 40404 2019 17 year year NN 40404 2019 18 , , , 40404 2019 19 what what WDT 40404 2019 20 changes change NNS 40404 2019 21 would would MD 40404 2019 22 take take VB 40404 2019 23 place place NN 40404 2019 24 in in IN 40404 2019 25 the the DT 40404 2019 26 vegetation vegetation NN 40404 2019 27 of of IN 40404 2019 28 the the DT 40404 2019 29 country country NN 40404 2019 30 ? ? . 40404 2020 1 in in IN 40404 2020 2 the the DT 40404 2020 3 soil soil NN 40404 2020 4 ? ? . 40404 2021 1 in in IN 40404 2021 2 the the DT 40404 2021 3 streams stream NNS 40404 2021 4 ? ? . 40404 2022 1 in in IN 40404 2022 2 the the DT 40404 2022 3 erosion erosion NN 40404 2022 4 of of IN 40404 2022 5 valleys valley NNS 40404 2022 6 ? ? . 40404 2023 1 in in IN 40404 2023 2 the the DT 40404 2023 3 agencies agency NNS 40404 2023 4 chiefly chiefly RB 40404 2023 5 at at IN 40404 2023 6 work work NN 40404 2023 7 in in IN 40404 2023 8 denuding denude VBG 40404 2023 9 the the DT 40404 2023 10 land land NN 40404 2023 11 ? ? . 40404 2024 1 In in IN 40404 2024 2 what what WDT 40404 2024 3 way way NN 40404 2024 4 can can MD 40404 2024 5 a a DT 40404 2024 6 wind wind NN 40404 2024 7 - - HYPH 40404 2024 8 carved carve VBN 40404 2024 9 pebble pebble NN 40404 2024 10 be be VB 40404 2024 11 distinguished distinguish VBN 40404 2024 12 from from IN 40404 2024 13 a a DT 40404 2024 14 river river NN 40404 2024 15 - - HYPH 40404 2024 16 worn wear VBN 40404 2024 17 pebble pebble NN 40404 2024 18 ? ? . 40404 2025 1 from from IN 40404 2025 2 a a DT 40404 2025 3 glaciated glaciate VBN 40404 2025 4 pebble pebble NN 40404 2025 5 ? ? . 40404 2026 1 CHAPTER CHAPTER NNP 40404 2026 2 VII VII NNP 40404 2026 3 THE the DT 40404 2026 4 SEA SEA NNP 40404 2026 5 AND and CC 40404 2026 6 ITS its PRP$ 40404 2026 7 SHORES SHORES NNP 40404 2026 8 [ [ -LRB- 40404 2026 9 Illustration illustration NN 40404 2026 10 : : : 40404 2026 11 Fig Fig NNP 40404 2026 12 . . . 40404 2027 1 131 131 CD 40404 2027 2 . . . 40404 2028 1 Sea Sea NNP 40404 2028 2 Cliff Cliff NNP 40404 2028 3 and and CC 40404 2028 4 Rock Rock NNP 40404 2028 5 Bench Bench NNP 40404 2028 6 Cut Cut NNP 40404 2028 7 in in IN 40404 2028 8 Chalk Chalk NNP 40404 2028 9 , , , 40404 2028 10 Dover Dover NNP 40404 2028 11 , , , 40404 2028 12 England England NNP 40404 2028 13 ] ] -RRB- 40404 2028 14 We -PRON- PRP 40404 2028 15 have have VBP 40404 2028 16 already already RB 40404 2028 17 seen see VBN 40404 2028 18 that that IN 40404 2028 19 the the DT 40404 2028 20 ocean ocean NN 40404 2028 21 is be VBZ 40404 2028 22 the the DT 40404 2028 23 goal goal NN 40404 2028 24 at at IN 40404 2028 25 which which WDT 40404 2028 26 the the DT 40404 2028 27 waste waste NN 40404 2028 28 of of IN 40404 2028 29 the the DT 40404 2028 30 land land NN 40404 2028 31 arrives arrive VBZ 40404 2028 32 . . . 40404 2029 1 The the DT 40404 2029 2 mantle mantle NN 40404 2029 3 of of IN 40404 2029 4 rock rock NN 40404 2029 5 waste waste NN 40404 2029 6 , , , 40404 2029 7 creeping creep VBG 40404 2029 8 down down IN 40404 2029 9 slopes slope NNS 40404 2029 10 , , , 40404 2029 11 is be VBZ 40404 2029 12 washed wash VBN 40404 2029 13 to to IN 40404 2029 14 the the DT 40404 2029 15 sea sea NN 40404 2029 16 by by IN 40404 2029 17 streams stream NNS 40404 2029 18 , , , 40404 2029 19 together together RB 40404 2029 20 with with IN 40404 2029 21 the the DT 40404 2029 22 material material NN 40404 2029 23 which which WDT 40404 2029 24 the the DT 40404 2029 25 streams stream NNS 40404 2029 26 have have VBP 40404 2029 27 worn wear VBN 40404 2029 28 from from IN 40404 2029 29 their -PRON- PRP$ 40404 2029 30 beds bed NNS 40404 2029 31 and and CC 40404 2029 32 that that IN 40404 2029 33 dissolved dissolve VBN 40404 2029 34 by by IN 40404 2029 35 underground underground JJ 40404 2029 36 waters water NNS 40404 2029 37 . . . 40404 2030 1 In in IN 40404 2030 2 arid arid JJ 40404 2030 3 regions region NNS 40404 2030 4 the the DT 40404 2030 5 winds wind NNS 40404 2030 6 sweep sweep VBP 40404 2030 7 waste waste NN 40404 2030 8 either either CC 40404 2030 9 into into IN 40404 2030 10 bordering border VBG 40404 2030 11 oceans ocean NNS 40404 2030 12 or or CC 40404 2030 13 into into IN 40404 2030 14 more more JJR 40404 2030 15 humid humid JJ 40404 2030 16 regions region NNS 40404 2030 17 where where WRB 40404 2030 18 rivers river NNS 40404 2030 19 take take VBP 40404 2030 20 it -PRON- PRP 40404 2030 21 up up RP 40404 2030 22 and and CC 40404 2030 23 carry carry VB 40404 2030 24 it -PRON- PRP 40404 2030 25 on on RP 40404 2030 26 to to IN 40404 2030 27 the the DT 40404 2030 28 sea sea NN 40404 2030 29 . . . 40404 2031 1 Glaciers glacier NNS 40404 2031 2 deliver deliver VBP 40404 2031 3 the the DT 40404 2031 4 load load NN 40404 2031 5 of of IN 40404 2031 6 their -PRON- PRP$ 40404 2031 7 moraines moraine NNS 40404 2031 8 either either CC 40404 2031 9 directly directly RB 40404 2031 10 to to IN 40404 2031 11 the the DT 40404 2031 12 sea sea NN 40404 2031 13 or or CC 40404 2031 14 leave leave VB 40404 2031 15 it -PRON- PRP 40404 2031 16 for for IN 40404 2031 17 streams stream NNS 40404 2031 18 to to TO 40404 2031 19 transport transport VB 40404 2031 20 to to IN 40404 2031 21 the the DT 40404 2031 22 same same JJ 40404 2031 23 goal goal NN 40404 2031 24 . . . 40404 2032 1 All all DT 40404 2032 2 deposits deposit NNS 40404 2032 3 made make VBN 40404 2032 4 on on IN 40404 2032 5 the the DT 40404 2032 6 land land NN 40404 2032 7 , , , 40404 2032 8 such such JJ 40404 2032 9 as as IN 40404 2032 10 the the DT 40404 2032 11 flood flood NN 40404 2032 12 plains plain NNS 40404 2032 13 of of IN 40404 2032 14 rivers river NNS 40404 2032 15 , , , 40404 2032 16 the the DT 40404 2032 17 silts silt NNS 40404 2032 18 of of IN 40404 2032 19 lake lake NNP 40404 2032 20 beds beds NNP 40404 2032 21 , , , 40404 2032 22 dune dune NN 40404 2032 23 sands sand NNS 40404 2032 24 , , , 40404 2032 25 and and CC 40404 2032 26 sheets sheet NNS 40404 2032 27 of of IN 40404 2032 28 glacial glacial JJ 40404 2032 29 drift drift NNP 40404 2032 30 , , , 40404 2032 31 mark mark NNP 40404 2032 32 but but CC 40404 2032 33 pauses pause NNS 40404 2032 34 in in IN 40404 2032 35 the the DT 40404 2032 36 process process NN 40404 2032 37 which which WDT 40404 2032 38 is be VBZ 40404 2032 39 to to TO 40404 2032 40 bring bring VB 40404 2032 41 all all PDT 40404 2032 42 the the DT 40404 2032 43 materials material NNS 40404 2032 44 of of IN 40404 2032 45 the the DT 40404 2032 46 land land NN 40404 2032 47 now now RB 40404 2032 48 above above IN 40404 2032 49 sea sea NN 40404 2032 50 level level NN 40404 2032 51 to to TO 40404 2032 52 rest rest VB 40404 2032 53 upon upon IN 40404 2032 54 the the DT 40404 2032 55 ocean ocean NN 40404 2032 56 bed bed NN 40404 2032 57 . . . 40404 2033 1 But but CC 40404 2033 2 the the DT 40404 2033 3 sea sea NN 40404 2033 4 is be VBZ 40404 2033 5 also also RB 40404 2033 6 at at IN 40404 2033 7 work work NN 40404 2033 8 along along IN 40404 2033 9 all all DT 40404 2033 10 its -PRON- PRP$ 40404 2033 11 shores shore NNS 40404 2033 12 as as IN 40404 2033 13 an an DT 40404 2033 14 agent agent NN 40404 2033 15 of of IN 40404 2033 16 destruction destruction NN 40404 2033 17 , , , 40404 2033 18 and and CC 40404 2033 19 we -PRON- PRP 40404 2033 20 must must MD 40404 2033 21 first first RB 40404 2033 22 take take VB 40404 2033 23 up up RP 40404 2033 24 its -PRON- PRP$ 40404 2033 25 work work NN 40404 2033 26 in in IN 40404 2033 27 erosion erosion NN 40404 2033 28 before before IN 40404 2033 29 we -PRON- PRP 40404 2033 30 consider consider VBP 40404 2033 31 how how WRB 40404 2033 32 it -PRON- PRP 40404 2033 33 transports transport VBZ 40404 2033 34 and and CC 40404 2033 35 deposits deposit VBZ 40404 2033 36 the the DT 40404 2033 37 waste waste NN 40404 2033 38 of of IN 40404 2033 39 the the DT 40404 2033 40 land land NN 40404 2033 41 . . . 40404 2034 1 Sea Sea NNP 40404 2034 2 Erosion Erosion NNP 40404 2034 3 = = NFP 40404 2034 4 The the DT 40404 2034 5 sea sea NN 40404 2034 6 cliff cliff NN 40404 2034 7 and and CC 40404 2034 8 the the DT 40404 2034 9 rock rock NN 40404 2034 10 bench.= bench.= NNP 40404 2034 11 On on IN 40404 2034 12 many many JJ 40404 2034 13 coasts coast NNS 40404 2034 14 the the DT 40404 2034 15 land land NN 40404 2034 16 fronts front VBZ 40404 2034 17 the the DT 40404 2034 18 ocean ocean NN 40404 2034 19 in in IN 40404 2034 20 a a DT 40404 2034 21 line line NN 40404 2034 22 of of IN 40404 2034 23 cliffs cliff NNS 40404 2034 24 ( ( -LRB- 40404 2034 25 Fig fig NN 40404 2034 26 . . . 40404 2035 1 131 131 CD 40404 2035 2 ) ) -RRB- 40404 2035 3 . . . 40404 2036 1 To to IN 40404 2036 2 the the DT 40404 2036 3 edge edge NN 40404 2036 4 of of IN 40404 2036 5 the the DT 40404 2036 6 cliffs cliff NNS 40404 2036 7 there there RB 40404 2036 8 lead lead VBP 40404 2036 9 down down IN 40404 2036 10 valleys valley NNS 40404 2036 11 and and CC 40404 2036 12 ridges ridge NNS 40404 2036 13 , , , 40404 2036 14 carved carve VBN 40404 2036 15 by by IN 40404 2036 16 running run VBG 40404 2036 17 water water NN 40404 2036 18 , , , 40404 2036 19 which which WDT 40404 2036 20 , , , 40404 2036 21 if if IN 40404 2036 22 extended extend VBN 40404 2036 23 , , , 40404 2036 24 would would MD 40404 2036 25 meet meet VB 40404 2036 26 the the DT 40404 2036 27 water water NN 40404 2036 28 surface surface NN 40404 2036 29 some some DT 40404 2036 30 way way NN 40404 2036 31 out out RB 40404 2036 32 from from IN 40404 2036 33 shore shore NN 40404 2036 34 . . . 40404 2037 1 Evidently evidently RB 40404 2037 2 they -PRON- PRP 40404 2037 3 are be VBP 40404 2037 4 now now RB 40404 2037 5 abruptly abruptly RB 40404 2037 6 cut cut VBN 40404 2037 7 short short JJ 40404 2037 8 at at IN 40404 2037 9 the the DT 40404 2037 10 present present JJ 40404 2037 11 shore shore NN 40404 2037 12 line line NN 40404 2037 13 because because IN 40404 2037 14 the the DT 40404 2037 15 land land NN 40404 2037 16 has have VBZ 40404 2037 17 been be VBN 40404 2037 18 cut cut VBN 40404 2037 19 back back RB 40404 2037 20 . . . 40404 2038 1 [ [ -LRB- 40404 2038 2 Illustration illustration NN 40404 2038 3 : : : 40404 2038 4 Fig Fig NNP 40404 2038 5 . . . 40404 2039 1 132 132 CD 40404 2039 2 . . . 40404 2040 1 Diagram Diagram NNP 40404 2040 2 of of IN 40404 2040 3 Sea Sea NNP 40404 2040 4 Cliff Cliff NNP 40404 2040 5 _ _ NNP 40404 2040 6 sc sc NNP 40404 2040 7 _ _ NNP 40404 2040 8 , , , 40404 2040 9 and and CC 40404 2040 10 Rock Rock NNP 40404 2040 11 Bench Bench NNP 40404 2040 12 _ _ NNP 40404 2040 13 rb rb NNP 40404 2040 14 _ _ NNP 40404 2040 15 The the DT 40404 2040 16 broken broken JJ 40404 2040 17 line line NN 40404 2040 18 indicates indicate VBZ 40404 2040 19 the the DT 40404 2040 20 former former JJ 40404 2040 21 extent extent NN 40404 2040 22 of of IN 40404 2040 23 the the DT 40404 2040 24 land land NN 40404 2040 25 . . . 40404 2040 26 ] ] -RRB- 40404 2041 1 Along along IN 40404 2041 2 the the DT 40404 2041 3 foot foot NN 40404 2041 4 of of IN 40404 2041 5 the the DT 40404 2041 6 cliff cliff NN 40404 2041 7 lies lie VBZ 40404 2041 8 a a DT 40404 2041 9 gently gently RB 40404 2041 10 shelving shelve VBG 40404 2041 11 bench bench NN 40404 2041 12 of of IN 40404 2041 13 rock rock NN 40404 2041 14 , , , 40404 2041 15 more more RBR 40404 2041 16 or or CC 40404 2041 17 less less RBR 40404 2041 18 thickly thickly RB 40404 2041 19 veneered veneer VBN 40404 2041 20 with with IN 40404 2041 21 sand sand NN 40404 2041 22 and and CC 40404 2041 23 shingle shingle JJ 40404 2041 24 . . . 40404 2042 1 At at IN 40404 2042 2 low low JJ 40404 2042 3 tide tide NN 40404 2042 4 its -PRON- PRP$ 40404 2042 5 inner inner JJ 40404 2042 6 margin margin NN 40404 2042 7 is be VBZ 40404 2042 8 laid lay VBN 40404 2042 9 bare bare JJ 40404 2042 10 , , , 40404 2042 11 but but CC 40404 2042 12 at at IN 40404 2042 13 high high JJ 40404 2042 14 tide tide NN 40404 2042 15 it -PRON- PRP 40404 2042 16 is be VBZ 40404 2042 17 covered cover VBN 40404 2042 18 wholly wholly RB 40404 2042 19 , , , 40404 2042 20 and and CC 40404 2042 21 the the DT 40404 2042 22 sea sea NN 40404 2042 23 washes wash VBZ 40404 2042 24 the the DT 40404 2042 25 base base NN 40404 2042 26 of of IN 40404 2042 27 the the DT 40404 2042 28 cliffs cliff NNS 40404 2042 29 . . . 40404 2043 1 A a DT 40404 2043 2 notch notch NN 40404 2043 3 , , , 40404 2043 4 of of IN 40404 2043 5 which which WDT 40404 2043 6 the the DT 40404 2043 7 _ _ NNP 40404 2043 8 sea sea NN 40404 2043 9 cliff cliff NN 40404 2043 10 _ _ NNP 40404 2043 11 and and CC 40404 2043 12 the the DT 40404 2043 13 _ _ NNP 40404 2043 14 rock rock NN 40404 2043 15 bench bench NN 40404 2043 16 _ _ NNP 40404 2043 17 are be VBP 40404 2043 18 the the DT 40404 2043 19 two two CD 40404 2043 20 sides side NNS 40404 2043 21 , , , 40404 2043 22 has have VBZ 40404 2043 23 been be VBN 40404 2043 24 cut cut VBN 40404 2043 25 along along IN 40404 2043 26 the the DT 40404 2043 27 shore shore NN 40404 2043 28 ( ( -LRB- 40404 2043 29 Fig fig NN 40404 2043 30 . . . 40404 2044 1 132 132 CD 40404 2044 2 ) ) -RRB- 40404 2044 3 . . . 40404 2045 1 = = NFP 40404 2045 2 Waves.= Waves.= NNP 40404 2045 3 The the DT 40404 2045 4 position position NN 40404 2045 5 of of IN 40404 2045 6 the the DT 40404 2045 7 rock rock NN 40404 2045 8 bench bench NN 40404 2045 9 , , , 40404 2045 10 with with IN 40404 2045 11 its -PRON- PRP$ 40404 2045 12 inner inner JJ 40404 2045 13 margin margin NN 40404 2045 14 slightly slightly RB 40404 2045 15 above above IN 40404 2045 16 low low JJ 40404 2045 17 tide tide NN 40404 2045 18 , , , 40404 2045 19 shows show VBZ 40404 2045 20 that that IN 40404 2045 21 it -PRON- PRP 40404 2045 22 has have VBZ 40404 2045 23 been be VBN 40404 2045 24 cut cut VBN 40404 2045 25 by by IN 40404 2045 26 some some DT 40404 2045 27 agent agent NN 40404 2045 28 which which WDT 40404 2045 29 acts act VBZ 40404 2045 30 like like IN 40404 2045 31 a a DT 40404 2045 32 horizontal horizontal JJ 40404 2045 33 saw saw NN 40404 2045 34 set set VBN 40404 2045 35 at at IN 40404 2045 36 about about IN 40404 2045 37 sea sea NN 40404 2045 38 level level NN 40404 2045 39 . . . 40404 2046 1 This this DT 40404 2046 2 agent agent NN 40404 2046 3 is be VBZ 40404 2046 4 clearly clearly RB 40404 2046 5 the the DT 40404 2046 6 surface surface NN 40404 2046 7 agitation agitation NN 40404 2046 8 of of IN 40404 2046 9 the the DT 40404 2046 10 water water NN 40404 2046 11 ; ; : 40404 2046 12 it -PRON- PRP 40404 2046 13 is be VBZ 40404 2046 14 the the DT 40404 2046 15 wind wind NN 40404 2046 16 - - HYPH 40404 2046 17 raised raise VBN 40404 2046 18 wave wave NN 40404 2046 19 . . . 40404 2047 1 As as IN 40404 2047 2 a a DT 40404 2047 3 wave wave NN 40404 2047 4 comes come VBZ 40404 2047 5 up up RP 40404 2047 6 the the DT 40404 2047 7 shelving shelving NN 40404 2047 8 bench bench NN 40404 2047 9 the the DT 40404 2047 10 crest crest NN 40404 2047 11 topples topple VBZ 40404 2047 12 forward forward RB 40404 2047 13 and and CC 40404 2047 14 the the DT 40404 2047 15 wave wave NN 40404 2047 16 " " `` 40404 2047 17 breaks break NNS 40404 2047 18 , , , 40404 2047 19 " " '' 40404 2047 20 striking strike VBG 40404 2047 21 a a DT 40404 2047 22 blow blow NN 40404 2047 23 whose whose WP$ 40404 2047 24 force force NN 40404 2047 25 is be VBZ 40404 2047 26 measured measure VBN 40404 2047 27 by by IN 40404 2047 28 the the DT 40404 2047 29 momentum momentum NN 40404 2047 30 of of IN 40404 2047 31 all all DT 40404 2047 32 its -PRON- PRP$ 40404 2047 33 tons ton NNS 40404 2047 34 of of IN 40404 2047 35 falling fall VBG 40404 2047 36 water water NN 40404 2047 37 ( ( -LRB- 40404 2047 38 Fig fig NN 40404 2047 39 . . . 40404 2048 1 133 133 LS 40404 2048 2 ) ) -RRB- 40404 2048 3 . . . 40404 2049 1 On on IN 40404 2049 2 the the DT 40404 2049 3 coast coast NN 40404 2049 4 of of IN 40404 2049 5 Scotland Scotland NNP 40404 2049 6 the the DT 40404 2049 7 force force NN 40404 2049 8 of of IN 40404 2049 9 the the DT 40404 2049 10 blows blow NNS 40404 2049 11 struck strike VBN 40404 2049 12 by by IN 40404 2049 13 the the DT 40404 2049 14 waves wave NNS 40404 2049 15 of of IN 40404 2049 16 the the DT 40404 2049 17 heaviest heavy JJS 40404 2049 18 storms storm NNS 40404 2049 19 has have VBZ 40404 2049 20 sometimes sometimes RB 40404 2049 21 exceeded exceed VBN 40404 2049 22 three three CD 40404 2049 23 tons ton NNS 40404 2049 24 to to IN 40404 2049 25 the the DT 40404 2049 26 square square JJ 40404 2049 27 foot foot NN 40404 2049 28 . . . 40404 2050 1 But but CC 40404 2050 2 even even RB 40404 2050 3 a a DT 40404 2050 4 calm calm JJ 40404 2050 5 sea sea NN 40404 2050 6 constantly constantly RB 40404 2050 7 chafes chafe VBZ 40404 2050 8 the the DT 40404 2050 9 shore shore NN 40404 2050 10 . . . 40404 2051 1 It -PRON- PRP 40404 2051 2 heaves heave VBZ 40404 2051 3 in in IN 40404 2051 4 gentle gentle JJ 40404 2051 5 undulations undulation NNS 40404 2051 6 known know VBN 40404 2051 7 as as IN 40404 2051 8 the the DT 40404 2051 9 ground ground NN 40404 2051 10 swell swell NN 40404 2051 11 , , , 40404 2051 12 the the DT 40404 2051 13 result result NN 40404 2051 14 of of IN 40404 2051 15 storms storm NNS 40404 2051 16 perhaps perhaps RB 40404 2051 17 a a DT 40404 2051 18 thousand thousand CD 40404 2051 19 miles mile NNS 40404 2051 20 distant distant JJ 40404 2051 21 , , , 40404 2051 22 and and CC 40404 2051 23 breaks break NNS 40404 2051 24 on on IN 40404 2051 25 the the DT 40404 2051 26 shore shore NN 40404 2051 27 in in IN 40404 2051 28 surf surf NN 40404 2051 29 . . . 40404 2052 1 [ [ -LRB- 40404 2052 2 Illustration illustration NN 40404 2052 3 : : : 40404 2052 4 Fig Fig NNP 40404 2052 5 . . . 40404 2053 1 133 133 LS 40404 2053 2 . . . 40404 2054 1 Breaking break VBG 40404 2054 2 Wave Wave NNP 40404 2054 3 , , , 40404 2054 4 Lake Lake NNP 40404 2054 5 Superior Superior NNP 40404 2054 6 ] ] -RRB- 40404 2054 7 The the DT 40404 2054 8 blows blow NNS 40404 2054 9 of of IN 40404 2054 10 the the DT 40404 2054 11 waves wave NNS 40404 2054 12 are be VBP 40404 2054 13 not not RB 40404 2054 14 struck strike VBN 40404 2054 15 with with IN 40404 2054 16 clear clear JJ 40404 2054 17 water water NN 40404 2054 18 only only RB 40404 2054 19 , , , 40404 2054 20 else else RB 40404 2054 21 they -PRON- PRP 40404 2054 22 would would MD 40404 2054 23 have have VB 40404 2054 24 little little JJ 40404 2054 25 effect effect NN 40404 2054 26 on on IN 40404 2054 27 cliffs cliff NNS 40404 2054 28 of of IN 40404 2054 29 solid solid JJ 40404 2054 30 rock rock NN 40404 2054 31 . . . 40404 2055 1 Storm storm NN 40404 2055 2 waves wave NNS 40404 2055 3 arm arm VBP 40404 2055 4 themselves -PRON- PRP 40404 2055 5 with with IN 40404 2055 6 the the DT 40404 2055 7 sand sand NN 40404 2055 8 and and CC 40404 2055 9 gravel gravel NN 40404 2055 10 , , , 40404 2055 11 the the DT 40404 2055 12 cobbles cobble NNS 40404 2055 13 , , , 40404 2055 14 and and CC 40404 2055 15 even even RB 40404 2055 16 the the DT 40404 2055 17 large large JJ 40404 2055 18 bowlders bowlder NNS 40404 2055 19 which which WDT 40404 2055 20 lie lie VBP 40404 2055 21 at at IN 40404 2055 22 the the DT 40404 2055 23 base base NN 40404 2055 24 of of IN 40404 2055 25 the the DT 40404 2055 26 cliff cliff NN 40404 2055 27 , , , 40404 2055 28 and and CC 40404 2055 29 beat beat VBD 40404 2055 30 against against IN 40404 2055 31 it -PRON- PRP 40404 2055 32 with with IN 40404 2055 33 these these DT 40404 2055 34 hammers hammer NNS 40404 2055 35 of of IN 40404 2055 36 stone stone NN 40404 2055 37 . . . 40404 2056 1 Where where WRB 40404 2056 2 a a DT 40404 2056 3 precipice precipice NN 40404 2056 4 descends descend VBZ 40404 2056 5 sheer sheer JJ 40404 2056 6 into into IN 40404 2056 7 deep deep JJ 40404 2056 8 water water NN 40404 2056 9 , , , 40404 2056 10 waves wave NNS 40404 2056 11 swash swash VBP 40404 2056 12 up up RP 40404 2056 13 and and CC 40404 2056 14 down down IN 40404 2056 15 the the DT 40404 2056 16 face face NN 40404 2056 17 of of IN 40404 2056 18 the the DT 40404 2056 19 rocks rock NNS 40404 2056 20 but but CC 40404 2056 21 can can MD 40404 2056 22 not not RB 40404 2056 23 break break VB 40404 2056 24 and and CC 40404 2056 25 strike strike VB 40404 2056 26 effective effective JJ 40404 2056 27 blows blow NNS 40404 2056 28 . . . 40404 2057 1 They -PRON- PRP 40404 2057 2 therefore therefore RB 40404 2057 3 erode erode VBP 40404 2057 4 but but CC 40404 2057 5 little little JJ 40404 2057 6 until until IN 40404 2057 7 the the DT 40404 2057 8 talus talus NN 40404 2057 9 fallen fall VBN 40404 2057 10 from from IN 40404 2057 11 the the DT 40404 2057 12 cliff cliff NN 40404 2057 13 is be VBZ 40404 2057 14 gradually gradually RB 40404 2057 15 built build VBN 40404 2057 16 up up RP 40404 2057 17 beneath beneath IN 40404 2057 18 the the DT 40404 2057 19 sea sea NN 40404 2057 20 to to IN 40404 2057 21 the the DT 40404 2057 22 level level NN 40404 2057 23 at at IN 40404 2057 24 which which WDT 40404 2057 25 the the DT 40404 2057 26 waves wave NNS 40404 2057 27 drag drag VBP 40404 2057 28 bottom bottom JJ 40404 2057 29 upon upon IN 40404 2057 30 it -PRON- PRP 40404 2057 31 and and CC 40404 2057 32 break break VB 40404 2057 33 . . . 40404 2058 1 Compare compare VB 40404 2058 2 the the DT 40404 2058 3 ways way NNS 40404 2058 4 in in IN 40404 2058 5 which which WDT 40404 2058 6 different different JJ 40404 2058 7 agents agent NNS 40404 2058 8 abrade abrade RB 40404 2058 9 . . . 40404 2059 1 The the DT 40404 2059 2 wind wind NN 40404 2059 3 lightly lightly RB 40404 2059 4 brushes brush VBZ 40404 2059 5 sand sand NN 40404 2059 6 and and CC 40404 2059 7 dust dust NN 40404 2059 8 over over IN 40404 2059 9 exposed expose VBN 40404 2059 10 surfaces surface NNS 40404 2059 11 of of IN 40404 2059 12 rock rock NN 40404 2059 13 . . . 40404 2060 1 Running run VBG 40404 2060 2 water water NN 40404 2060 3 sweeps sweep VBZ 40404 2060 4 fragments fragment NNS 40404 2060 5 of of IN 40404 2060 6 various various JJ 40404 2060 7 sizes size NNS 40404 2060 8 along along IN 40404 2060 9 its -PRON- PRP$ 40404 2060 10 channels channel NNS 40404 2060 11 , , , 40404 2060 12 holding hold VBG 40404 2060 13 them -PRON- PRP 40404 2060 14 with with IN 40404 2060 15 a a DT 40404 2060 16 loose loose JJ 40404 2060 17 hand hand NN 40404 2060 18 . . . 40404 2061 1 Glacial glacial JJ 40404 2061 2 ice ice NN 40404 2061 3 grinds grind VBZ 40404 2061 4 the the DT 40404 2061 5 stones stone NNS 40404 2061 6 of of IN 40404 2061 7 its -PRON- PRP$ 40404 2061 8 ground ground NN 40404 2061 9 moraine moraine VBP 40404 2061 10 against against IN 40404 2061 11 the the DT 40404 2061 12 underlying underlying JJ 40404 2061 13 rock rock NN 40404 2061 14 with with IN 40404 2061 15 the the DT 40404 2061 16 pressure pressure NN 40404 2061 17 of of IN 40404 2061 18 its -PRON- PRP$ 40404 2061 19 enormous enormous JJ 40404 2061 20 weight weight NN 40404 2061 21 . . . 40404 2062 1 The the DT 40404 2062 2 wave wave NN 40404 2062 3 hurls hurls JJ 40404 2062 4 fragments fragment NNS 40404 2062 5 of of IN 40404 2062 6 rock rock NN 40404 2062 7 against against IN 40404 2062 8 the the DT 40404 2062 9 sea sea NN 40404 2062 10 cliff cliff NN 40404 2062 11 , , , 40404 2062 12 bruising bruise VBG 40404 2062 13 and and CC 40404 2062 14 battering batter VBG 40404 2062 15 it -PRON- PRP 40404 2062 16 by by IN 40404 2062 17 the the DT 40404 2062 18 blow blow NN 40404 2062 19 . . . 40404 2063 1 It -PRON- PRP 40404 2063 2 also also RB 40404 2063 3 rasps rasp VBZ 40404 2063 4 the the DT 40404 2063 5 bench bench NN 40404 2063 6 as as IN 40404 2063 7 it -PRON- PRP 40404 2063 8 drags drag VBZ 40404 2063 9 sand sand NN 40404 2063 10 and and CC 40404 2063 11 gravel gravel NN 40404 2063 12 to to IN 40404 2063 13 and and CC 40404 2063 14 fro fro JJ 40404 2063 15 upon upon IN 40404 2063 16 it -PRON- PRP 40404 2063 17 . . . 40404 2064 1 = = NFP 40404 2064 2 Weathering weathering NN 40404 2064 3 of of IN 40404 2064 4 sea sea NN 40404 2064 5 cliffs.= cliffs.= CD 40404 2064 6 The the DT 40404 2064 7 sea sea NN 40404 2064 8 cliff cliff NN 40404 2064 9 furnishes furnish VBZ 40404 2064 10 the the DT 40404 2064 11 weapons weapon NNS 40404 2064 12 for for IN 40404 2064 13 its -PRON- PRP$ 40404 2064 14 own own JJ 40404 2064 15 destruction destruction NN 40404 2064 16 . . . 40404 2065 1 They -PRON- PRP 40404 2065 2 are be VBP 40404 2065 3 broken break VBN 40404 2065 4 from from IN 40404 2065 5 it -PRON- PRP 40404 2065 6 not not RB 40404 2065 7 only only RB 40404 2065 8 by by IN 40404 2065 9 the the DT 40404 2065 10 wave wave NN 40404 2065 11 but but CC 40404 2065 12 also also RB 40404 2065 13 by by IN 40404 2065 14 the the DT 40404 2065 15 weather weather NN 40404 2065 16 . . . 40404 2066 1 Indeed indeed RB 40404 2066 2 the the DT 40404 2066 3 sea sea NN 40404 2066 4 cliff cliff NN 40404 2066 5 weathers weather VBZ 40404 2066 6 more more RBR 40404 2066 7 rapidly rapidly RB 40404 2066 8 , , , 40404 2066 9 as as IN 40404 2066 10 a a DT 40404 2066 11 rule rule NN 40404 2066 12 , , , 40404 2066 13 than than IN 40404 2066 14 do do VB 40404 2066 15 rock rock NN 40404 2066 16 ledges ledge NNS 40404 2066 17 inland inland RB 40404 2066 18 . . . 40404 2067 1 It -PRON- PRP 40404 2067 2 is be VBZ 40404 2067 3 abundantly abundantly RB 40404 2067 4 wet wet JJ 40404 2067 5 with with IN 40404 2067 6 spray spray NN 40404 2067 7 . . . 40404 2068 1 Along along IN 40404 2068 2 its -PRON- PRP$ 40404 2068 3 base base NN 40404 2068 4 the the DT 40404 2068 5 ground ground NN 40404 2068 6 water water NN 40404 2068 7 of of IN 40404 2068 8 the the DT 40404 2068 9 neighboring neighbor VBG 40404 2068 10 land land NN 40404 2068 11 finds find VBZ 40404 2068 12 its -PRON- PRP$ 40404 2068 13 natural natural JJ 40404 2068 14 outlet outlet NN 40404 2068 15 in in IN 40404 2068 16 springs spring NNS 40404 2068 17 which which WDT 40404 2068 18 under under IN 40404 2068 19 mine mine NN 40404 2068 20 it -PRON- PRP 40404 2068 21 . . . 40404 2069 1 Moreover moreover RB 40404 2069 2 , , , 40404 2069 3 it -PRON- PRP 40404 2069 4 is be VBZ 40404 2069 5 unprotected unprotected JJ 40404 2069 6 by by IN 40404 2069 7 any any DT 40404 2069 8 shield shield NN 40404 2069 9 of of IN 40404 2069 10 talus talus NN 40404 2069 11 . . . 40404 2070 1 Fragments fragment NNS 40404 2070 2 of of IN 40404 2070 3 rock rock NN 40404 2070 4 as as IN 40404 2070 5 they -PRON- PRP 40404 2070 6 fall fall VBP 40404 2070 7 from from IN 40404 2070 8 its -PRON- PRP$ 40404 2070 9 face face NN 40404 2070 10 are be VBP 40404 2070 11 battered batter VBN 40404 2070 12 to to IN 40404 2070 13 pieces piece NNS 40404 2070 14 by by IN 40404 2070 15 the the DT 40404 2070 16 waves wave NNS 40404 2070 17 and and CC 40404 2070 18 swept sweep VBD 40404 2070 19 out out RP 40404 2070 20 to to IN 40404 2070 21 sea sea NN 40404 2070 22 . . . 40404 2071 1 The the DT 40404 2071 2 cliff cliff NN 40404 2071 3 is be VBZ 40404 2071 4 thus thus RB 40404 2071 5 left leave VBN 40404 2071 6 exposed expose VBN 40404 2071 7 to to IN 40404 2071 8 the the DT 40404 2071 9 attack attack NN 40404 2071 10 of of IN 40404 2071 11 the the DT 40404 2071 12 weather weather NN 40404 2071 13 , , , 40404 2071 14 and and CC 40404 2071 15 its -PRON- PRP$ 40404 2071 16 retreat retreat NN 40404 2071 17 would would MD 40404 2071 18 be be VB 40404 2071 19 comparatively comparatively RB 40404 2071 20 rapid rapid JJ 40404 2071 21 for for IN 40404 2071 22 this this DT 40404 2071 23 reason reason NN 40404 2071 24 alone alone RB 40404 2071 25 . . . 40404 2072 1 [ [ -LRB- 40404 2072 2 Illustration illustration NN 40404 2072 3 : : : 40404 2072 4 Fig Fig NNP 40404 2072 5 . . . 40404 2073 1 134 134 CD 40404 2073 2 . . . 40404 2074 1 Sea Sea NNP 40404 2074 2 Caves cave NNS 40404 2074 3 , , , 40404 2074 4 La La NNP 40404 2074 5 Jolla Jolla NNP 40404 2074 6 , , , 40404 2074 7 California California NNP 40404 2074 8 Copyright Copyright NNP 40404 2074 9 , , , 40404 2074 10 1899 1899 CD 40404 2074 11 , , , 40404 2074 12 by by IN 40404 2074 13 the the DT 40404 2074 14 Detroit Detroit NNP 40404 2074 15 Photography Photography NNP 40404 2074 16 Company Company NNP 40404 2074 17 ] ] -RRB- 40404 2074 18 Sea Sea NNP 40404 2074 19 cliffs cliff NNS 40404 2074 20 seldom seldom RB 40404 2074 21 overhang overhang VBP 40404 2074 22 , , , 40404 2074 23 but but CC 40404 2074 24 commonly commonly RB 40404 2074 25 , , , 40404 2074 26 as as IN 40404 2074 27 in in IN 40404 2074 28 Figure Figure NNP 40404 2074 29 134 134 CD 40404 2074 30 , , , 40404 2074 31 slope slope NN 40404 2074 32 seaward seaward NN 40404 2074 33 , , , 40404 2074 34 showing show VBG 40404 2074 35 that that IN 40404 2074 36 the the DT 40404 2074 37 upper upper JJ 40404 2074 38 portion portion NN 40404 2074 39 has have VBZ 40404 2074 40 retreated retreat VBN 40404 2074 41 at at IN 40404 2074 42 a a DT 40404 2074 43 more more RBR 40404 2074 44 rapid rapid JJ 40404 2074 45 rate rate NN 40404 2074 46 than than IN 40404 2074 47 has have VBZ 40404 2074 48 the the DT 40404 2074 49 base base NN 40404 2074 50 . . . 40404 2075 1 Which which WDT 40404 2075 2 do do VBP 40404 2075 3 you -PRON- PRP 40404 2075 4 infer infer VB 40404 2075 5 is be VBZ 40404 2075 6 on on IN 40404 2075 7 the the DT 40404 2075 8 whole whole NN 40404 2075 9 the the DT 40404 2075 10 more more RBR 40404 2075 11 destructive destructive JJ 40404 2075 12 agent agent NN 40404 2075 13 , , , 40404 2075 14 weathering weathering NN 40404 2075 15 or or CC 40404 2075 16 the the DT 40404 2075 17 wave wave NN 40404 2075 18 ? ? . 40404 2076 1 Draw draw VB 40404 2076 2 a a DT 40404 2076 3 section section NN 40404 2076 4 of of IN 40404 2076 5 a a DT 40404 2076 6 sea sea NN 40404 2076 7 cliff cliff NN 40404 2076 8 cut cut VBN 40404 2076 9 in in RP 40404 2076 10 well well RB 40404 2076 11 jointed joint VBN 40404 2076 12 rocks rock NNS 40404 2076 13 whose whose WP$ 40404 2076 14 joints joint NNS 40404 2076 15 dip dip VBP 40404 2076 16 toward toward IN 40404 2076 17 the the DT 40404 2076 18 land land NN 40404 2076 19 . . . 40404 2077 1 Draw draw VB 40404 2077 2 a a DT 40404 2077 3 diagram diagram NN 40404 2077 4 of of IN 40404 2077 5 a a DT 40404 2077 6 sea sea NN 40404 2077 7 cliff cliff NN 40404 2077 8 where where WRB 40404 2077 9 the the DT 40404 2077 10 joints joint NNS 40404 2077 11 dip dip VBP 40404 2077 12 toward toward IN 40404 2077 13 the the DT 40404 2077 14 sea sea NN 40404 2077 15 . . . 40404 2078 1 = = NFP 40404 2078 2 Sea Sea NNP 40404 2078 3 caves.= caves.= CD 40404 2078 4 The the DT 40404 2078 5 wave wave NN 40404 2078 6 does do VBZ 40404 2078 7 not not RB 40404 2078 8 merely merely RB 40404 2078 9 batter batter VB 40404 2078 10 the the DT 40404 2078 11 face face NN 40404 2078 12 of of IN 40404 2078 13 the the DT 40404 2078 14 cliff cliff NN 40404 2078 15 . . . 40404 2079 1 Like like IN 40404 2079 2 a a DT 40404 2079 3 skillful skillful JJ 40404 2079 4 quarryman quarryman NN 40404 2079 5 it -PRON- PRP 40404 2079 6 inserts insert VBZ 40404 2079 7 wedges wedge NNS 40404 2079 8 in in IN 40404 2079 9 all all DT 40404 2079 10 natural natural JJ 40404 2079 11 fissures fissure NNS 40404 2079 12 , , , 40404 2079 13 such such JJ 40404 2079 14 as as IN 40404 2079 15 joints joint NNS 40404 2079 16 , , , 40404 2079 17 and and CC 40404 2079 18 uses use VBZ 40404 2079 19 explosive explosive JJ 40404 2079 20 forces force NNS 40404 2079 21 . . . 40404 2080 1 As as IN 40404 2080 2 a a DT 40404 2080 3 wave wave NN 40404 2080 4 flaps flap VBZ 40404 2080 5 against against IN 40404 2080 6 a a DT 40404 2080 7 crevice crevice NN 40404 2080 8 it -PRON- PRP 40404 2080 9 compresses compress VBZ 40404 2080 10 the the DT 40404 2080 11 air air NN 40404 2080 12 within within IN 40404 2080 13 with with IN 40404 2080 14 the the DT 40404 2080 15 sudden sudden JJ 40404 2080 16 stroke stroke NN 40404 2080 17 ; ; : 40404 2080 18 as as IN 40404 2080 19 it -PRON- PRP 40404 2080 20 falls fall VBZ 40404 2080 21 back back RP 40404 2080 22 the the DT 40404 2080 23 air air NN 40404 2080 24 as as RB 40404 2080 25 suddenly suddenly RB 40404 2080 26 expands expand VBZ 40404 2080 27 . . . 40404 2081 1 On on IN 40404 2081 2 lighthouses lighthouse NNS 40404 2081 3 heavily heavily RB 40404 2081 4 barred bar VBN 40404 2081 5 doors door NNS 40404 2081 6 have have VBP 40404 2081 7 been be VBN 40404 2081 8 burst burst VBN 40404 2081 9 outward outward RB 40404 2081 10 by by IN 40404 2081 11 the the DT 40404 2081 12 explosive explosive JJ 40404 2081 13 force force NN 40404 2081 14 of of IN 40404 2081 15 the the DT 40404 2081 16 air air NN 40404 2081 17 within within IN 40404 2081 18 , , , 40404 2081 19 as as IN 40404 2081 20 it -PRON- PRP 40404 2081 21 was be VBD 40404 2081 22 released release VBN 40404 2081 23 from from IN 40404 2081 24 pressure pressure NN 40404 2081 25 when when WRB 40404 2081 26 a a DT 40404 2081 27 partial partial JJ 40404 2081 28 vacuum vacuum NN 40404 2081 29 was be VBD 40404 2081 30 formed form VBN 40404 2081 31 by by IN 40404 2081 32 the the DT 40404 2081 33 refluence refluence NN 40404 2081 34 of of IN 40404 2081 35 the the DT 40404 2081 36 wave wave NN 40404 2081 37 . . . 40404 2082 1 Where where WRB 40404 2082 2 a a DT 40404 2082 3 crevice crevice NN 40404 2082 4 is be VBZ 40404 2082 5 filled fill VBN 40404 2082 6 with with IN 40404 2082 7 water water NN 40404 2082 8 the the DT 40404 2082 9 entire entire JJ 40404 2082 10 force force NN 40404 2082 11 of of IN 40404 2082 12 the the DT 40404 2082 13 blow blow NN 40404 2082 14 of of IN 40404 2082 15 the the DT 40404 2082 16 wave wave NN 40404 2082 17 is be VBZ 40404 2082 18 transmitted transmit VBN 40404 2082 19 by by IN 40404 2082 20 hydraulic hydraulic JJ 40404 2082 21 pressure pressure NN 40404 2082 22 to to IN 40404 2082 23 the the DT 40404 2082 24 sides side NNS 40404 2082 25 of of IN 40404 2082 26 the the DT 40404 2082 27 fissure fissure NN 40404 2082 28 . . . 40404 2083 1 Thus thus RB 40404 2083 2 storm storm NN 40404 2083 3 waves wave VBZ 40404 2083 4 little little JJ 40404 2083 5 by by IN 40404 2083 6 little little JJ 40404 2083 7 pry pry NN 40404 2083 8 and and CC 40404 2083 9 suck suck VB 40404 2083 10 the the DT 40404 2083 11 rock rock NN 40404 2083 12 loose loose JJ 40404 2083 13 , , , 40404 2083 14 and and CC 40404 2083 15 in in IN 40404 2083 16 this this DT 40404 2083 17 way way NN 40404 2083 18 , , , 40404 2083 19 and and CC 40404 2083 20 by by IN 40404 2083 21 the the DT 40404 2083 22 blows blow NNS 40404 2083 23 which which WDT 40404 2083 24 they -PRON- PRP 40404 2083 25 strike strike VBP 40404 2083 26 with with IN 40404 2083 27 the the DT 40404 2083 28 stones stone NNS 40404 2083 29 of of IN 40404 2083 30 the the DT 40404 2083 31 beach beach NN 40404 2083 32 , , , 40404 2083 33 they -PRON- PRP 40404 2083 34 quarry quarry VBP 40404 2083 35 out out RP 40404 2083 36 about about IN 40404 2083 37 a a DT 40404 2083 38 joint joint NN 40404 2083 39 , , , 40404 2083 40 or or CC 40404 2083 41 wherever wherever WRB 40404 2083 42 the the DT 40404 2083 43 rock rock NN 40404 2083 44 may may MD 40404 2083 45 be be VB 40404 2083 46 weak weak JJ 40404 2083 47 , , , 40404 2083 48 a a DT 40404 2083 49 recess recess NN 40404 2083 50 known know VBN 40404 2083 51 as as IN 40404 2083 52 a a DT 40404 2083 53 _ _ NNP 40404 2083 54 sea sea NN 40404 2083 55 cave cave NN 40404 2083 56 _ _ NNP 40404 2083 57 , , , 40404 2083 58 provided provide VBN 40404 2083 59 that that IN 40404 2083 60 the the DT 40404 2083 61 rock rock NN 40404 2083 62 above above RB 40404 2083 63 is be VBZ 40404 2083 64 coherent coherent JJ 40404 2083 65 enough enough RB 40404 2083 66 to to TO 40404 2083 67 form form VB 40404 2083 68 a a DT 40404 2083 69 roof roof NN 40404 2083 70 . . . 40404 2084 1 Otherwise otherwise RB 40404 2084 2 an an DT 40404 2084 3 open open JJ 40404 2084 4 chasm chasm NN 40404 2084 5 results result NNS 40404 2084 6 . . . 40404 2085 1 [ [ -LRB- 40404 2085 2 Illustration illustration NN 40404 2085 3 : : : 40404 2085 4 Fig Fig NNP 40404 2085 5 . . . 40404 2086 1 135 135 CD 40404 2086 2 . . . 40404 2087 1 A a DT 40404 2087 2 Sea Sea NNP 40404 2087 3 Arch Arch NNP 40404 2087 4 , , , 40404 2087 5 California California NNP 40404 2087 6 Copyright Copyright NNP 40404 2087 7 , , , 40404 2087 8 1899 1899 CD 40404 2087 9 , , , 40404 2087 10 by by IN 40404 2087 11 the the DT 40404 2087 12 Detroit Detroit NNP 40404 2087 13 Photography Photography NNP 40404 2087 14 Company Company NNP 40404 2087 15 ] ] -RRB- 40404 2087 16 = = SYM 40404 2087 17 Blowholes Blowholes NNPS 40404 2087 18 and and CC 40404 2087 19 sea sea NN 40404 2087 20 arches.= arches.= NNS 40404 2087 21 As as IN 40404 2087 22 a a DT 40404 2087 23 sea sea NN 40404 2087 24 cave cave NN 40404 2087 25 is be VBZ 40404 2087 26 drilled drill VBN 40404 2087 27 back back RB 40404 2087 28 into into IN 40404 2087 29 the the DT 40404 2087 30 rock rock NN 40404 2087 31 , , , 40404 2087 32 it -PRON- PRP 40404 2087 33 may may MD 40404 2087 34 encounter encounter VB 40404 2087 35 a a DT 40404 2087 36 joint joint JJ 40404 2087 37 or or CC 40404 2087 38 crevice crevice NN 40404 2087 39 opened open VBN 40404 2087 40 to to IN 40404 2087 41 the the DT 40404 2087 42 surface surface NN 40404 2087 43 by by IN 40404 2087 44 percolating percolate VBG 40404 2087 45 water water NN 40404 2087 46 . . . 40404 2088 1 The the DT 40404 2088 2 shock shock NN 40404 2088 3 of of IN 40404 2088 4 the the DT 40404 2088 5 waves wave NNS 40404 2088 6 soon soon RB 40404 2088 7 enlarges enlarge VBZ 40404 2088 8 this this DT 40404 2088 9 to to IN 40404 2088 10 a a DT 40404 2088 11 blowhole blowhole NN 40404 2088 12 , , , 40404 2088 13 which which WDT 40404 2088 14 one one PRP 40404 2088 15 may may MD 40404 2088 16 find find VB 40404 2088 17 on on IN 40404 2088 18 the the DT 40404 2088 19 breezy breezy JJ 40404 2088 20 upland upland NN 40404 2088 21 , , , 40404 2088 22 perhaps perhaps RB 40404 2088 23 a a DT 40404 2088 24 hundred hundred CD 40404 2088 25 yards yard NNS 40404 2088 26 and and CC 40404 2088 27 more more RBR 40404 2088 28 back back RB 40404 2088 29 from from IN 40404 2088 30 the the DT 40404 2088 31 cliff cliff NN 40404 2088 32 's 's POS 40404 2088 33 edge edge NN 40404 2088 34 . . . 40404 2089 1 In in IN 40404 2089 2 quiet quiet JJ 40404 2089 3 weather weather NN 40404 2089 4 the the DT 40404 2089 5 blowhole blowhole NN 40404 2089 6 is be VBZ 40404 2089 7 a a DT 40404 2089 8 deep deep JJ 40404 2089 9 well well NN 40404 2089 10 ; ; : 40404 2089 11 in in IN 40404 2089 12 storm storm NN 40404 2089 13 it -PRON- PRP 40404 2089 14 plays play VBZ 40404 2089 15 a a DT 40404 2089 16 fountain fountain NN 40404 2089 17 as as IN 40404 2089 18 the the DT 40404 2089 19 waves wave NNS 40404 2089 20 drive drive VBP 40404 2089 21 through through IN 40404 2089 22 the the DT 40404 2089 23 long long JJ 40404 2089 24 tunnel tunnel NN 40404 2089 25 below below RB 40404 2089 26 and and CC 40404 2089 27 spout spout VB 40404 2089 28 their -PRON- PRP$ 40404 2089 29 spray spray NN 40404 2089 30 high high RB 40404 2089 31 in in IN 40404 2089 32 air air NN 40404 2089 33 in in IN 40404 2089 34 successive successive JJ 40404 2089 35 jets jet NNS 40404 2089 36 . . . 40404 2090 1 As as IN 40404 2090 2 the the DT 40404 2090 3 roof roof NN 40404 2090 4 of of IN 40404 2090 5 the the DT 40404 2090 6 cave cave NN 40404 2090 7 thus thus RB 40404 2090 8 breaks break VBZ 40404 2090 9 down down RP 40404 2090 10 in in IN 40404 2090 11 the the DT 40404 2090 12 rear rear NN 40404 2090 13 , , , 40404 2090 14 there there EX 40404 2090 15 may may MD 40404 2090 16 remain remain VB 40404 2090 17 in in IN 40404 2090 18 front front NN 40404 2090 19 for for IN 40404 2090 20 a a DT 40404 2090 21 while while NN 40404 2090 22 a a DT 40404 2090 23 sea sea NN 40404 2090 24 arch arch NN 40404 2090 25 , , , 40404 2090 26 similar similar JJ 40404 2090 27 to to IN 40404 2090 28 the the DT 40404 2090 29 natural natural JJ 40404 2090 30 bridges bridge NNS 40404 2090 31 of of IN 40404 2090 32 land land NN 40404 2090 33 caverns cavern NNS 40404 2090 34 ( ( -LRB- 40404 2090 35 Fig fig NN 40404 2090 36 . . . 40404 2091 1 135 135 CD 40404 2091 2 ) ) -RRB- 40404 2091 3 . . . 40404 2092 1 [ [ -LRB- 40404 2092 2 Illustration illustration NN 40404 2092 3 : : : 40404 2092 4 Fig Fig NNP 40404 2092 5 . . . 40404 2093 1 136 136 CD 40404 2093 2 . . . 40404 2094 1 Chasms chasm NNS 40404 2094 2 worn wear VBN 40404 2094 3 by by IN 40404 2094 4 Waves Waves NNP 40404 2094 5 , , , 40404 2094 6 Coast Coast NNP 40404 2094 7 of of IN 40404 2094 8 Scotland Scotland NNP 40404 2094 9 ] ] -RRB- 40404 2094 10 = = SYM 40404 2094 11 Stacks Stacks NNP 40404 2094 12 and and CC 40404 2094 13 wave wave NN 40404 2094 14 - - HYPH 40404 2094 15 cut cut VBN 40404 2094 16 islands.= islands.= NNP 40404 2094 17 As as IN 40404 2094 18 the the DT 40404 2094 19 sea sea NN 40404 2094 20 drives drive VBZ 40404 2094 21 its -PRON- PRP$ 40404 2094 22 tunnels tunnel NNS 40404 2094 23 and and CC 40404 2094 24 open open JJ 40404 2094 25 drifts drift NNS 40404 2094 26 into into IN 40404 2094 27 the the DT 40404 2094 28 cliff cliff NN 40404 2094 29 , , , 40404 2094 30 it -PRON- PRP 40404 2094 31 breaks break VBZ 40404 2094 32 through through IN 40404 2094 33 behind behind IN 40404 2094 34 the the DT 40404 2094 35 intervening intervene VBG 40404 2094 36 portions portion NNS 40404 2094 37 and and CC 40404 2094 38 leaves leave VBZ 40404 2094 39 them -PRON- PRP 40404 2094 40 isolated isolate VBN 40404 2094 41 as as IN 40404 2094 42 stacks stack NNS 40404 2094 43 , , , 40404 2094 44 much much RB 40404 2094 45 as as IN 40404 2094 46 monuments monument NNS 40404 2094 47 are be VBP 40404 2094 48 detached detach VBN 40404 2094 49 from from IN 40404 2094 50 inland inland JJ 40404 2094 51 escarpments escarpment NNS 40404 2094 52 by by IN 40404 2094 53 the the DT 40404 2094 54 weather weather NN 40404 2094 55 ; ; , 40404 2094 56 and and CC 40404 2094 57 as as IN 40404 2094 58 the the DT 40404 2094 59 sea sea NN 40404 2094 60 cliff cliff NN 40404 2094 61 retreats retreat NNS 40404 2094 62 , , , 40404 2094 63 these these DT 40404 2094 64 remnant remnant JJ 40404 2094 65 masses masse NNS 40404 2094 66 may may MD 40404 2094 67 be be VB 40404 2094 68 left leave VBN 40404 2094 69 behind behind RB 40404 2094 70 as as IN 40404 2094 71 rocky rocky JJ 40404 2094 72 islets islet NNS 40404 2094 73 . . . 40404 2095 1 Thus thus RB 40404 2095 2 the the DT 40404 2095 3 rock rock NN 40404 2095 4 bench bench NN 40404 2095 5 is be VBZ 40404 2095 6 often often RB 40404 2095 7 set set VBN 40404 2095 8 with with IN 40404 2095 9 stacks stack NNS 40404 2095 10 , , , 40404 2095 11 islets islet NNS 40404 2095 12 in in IN 40404 2095 13 all all DT 40404 2095 14 stages stage NNS 40404 2095 15 of of IN 40404 2095 16 destruction destruction NN 40404 2095 17 , , , 40404 2095 18 and and CC 40404 2095 19 sunken sink VBD 40404 2095 20 reefs,--all reefs,--all NNP 40404 2095 21 wrecks wreck NNS 40404 2095 22 of of IN 40404 2095 23 the the DT 40404 2095 24 land land NN 40404 2095 25 testifying testify VBG 40404 2095 26 to to IN 40404 2095 27 its -PRON- PRP$ 40404 2095 28 retreat retreat NN 40404 2095 29 before before IN 40404 2095 30 the the DT 40404 2095 31 incessant incessant JJ 40404 2095 32 attack attack NN 40404 2095 33 of of IN 40404 2095 34 the the DT 40404 2095 35 waves wave NNS 40404 2095 36 . . . 40404 2096 1 [ [ -LRB- 40404 2096 2 Illustration illustration NN 40404 2096 3 : : : 40404 2096 4 Fig Fig NNP 40404 2096 5 . . . 40404 2097 1 137 137 CD 40404 2097 2 . . . 40404 2098 1 A a DT 40404 2098 2 Stack Stack NNP 40404 2098 3 , , , 40404 2098 4 Scotland Scotland NNP 40404 2098 5 ] ] -RRB- 40404 2098 6 [ [ -LRB- 40404 2098 7 Illustration illustration NN 40404 2098 8 : : : 40404 2098 9 Fig Fig NNP 40404 2098 10 . . . 40404 2099 1 138 138 CD 40404 2099 2 . . . 40404 2100 1 Wave wave VB 40404 2100 2 - - HYPH 40404 2100 3 Cut Cut NNP 40404 2100 4 Islands Islands NNPS 40404 2100 5 , , , 40404 2100 6 Scotland Scotland NNP 40404 2100 7 How how WRB 40404 2100 8 far far RB 40404 2100 9 did do VBD 40404 2100 10 the the DT 40404 2100 11 land land NN 40404 2100 12 once once RB 40404 2100 13 extend extend VB 40404 2100 14 ? ? . 40404 2100 15 ] ] -RRB- 40404 2101 1 = = NFP 40404 2101 2 Coves.= Coves.= NNP 40404 2101 3 Where where WRB 40404 2101 4 zones zone NNS 40404 2101 5 of of IN 40404 2101 6 soft soft JJ 40404 2101 7 or or CC 40404 2101 8 closely closely RB 40404 2101 9 jointed jointed JJ 40404 2101 10 rock rock NN 40404 2101 11 outcrop outcrop NNP 40404 2101 12 along along IN 40404 2101 13 a a DT 40404 2101 14 shore shore NN 40404 2101 15 , , , 40404 2101 16 or or CC 40404 2101 17 where where WRB 40404 2101 18 minor minor JJ 40404 2101 19 water water NN 40404 2101 20 courses course NNS 40404 2101 21 conic conic VBP 40404 2101 22 down down RP 40404 2101 23 to to IN 40404 2101 24 the the DT 40404 2101 25 sea sea NN 40404 2101 26 and and CC 40404 2101 27 aid aid NN 40404 2101 28 in in IN 40404 2101 29 erosion erosion NN 40404 2101 30 , , , 40404 2101 31 the the DT 40404 2101 32 shore shore NN 40404 2101 33 is be VBZ 40404 2101 34 worn wear VBN 40404 2101 35 back back RP 40404 2101 36 in in IN 40404 2101 37 curved curved JJ 40404 2101 38 reëntrants reëntrant NNS 40404 2101 39 called call VBN 40404 2101 40 coves cove NNS 40404 2101 41 ; ; : 40404 2101 42 while while IN 40404 2101 43 the the DT 40404 2101 44 more more RBR 40404 2101 45 resistant resistant JJ 40404 2101 46 rocks rock NNS 40404 2101 47 on on IN 40404 2101 48 either either DT 40404 2101 49 hand hand NN 40404 2101 50 are be VBP 40404 2101 51 left leave VBN 40404 2101 52 projecting project VBG 40404 2101 53 as as IN 40404 2101 54 headlands headland NNS 40404 2101 55 ( ( -LRB- 40404 2101 56 Fig fig NN 40404 2101 57 . . . 40404 2102 1 139 139 CD 40404 2102 2 ) ) -RRB- 40404 2102 3 . . . 40404 2103 1 After after IN 40404 2103 2 coves cove NNS 40404 2103 3 are be VBP 40404 2103 4 cut cut VBN 40404 2103 5 back back RP 40404 2103 6 a a DT 40404 2103 7 short short JJ 40404 2103 8 distance distance NN 40404 2103 9 by by IN 40404 2103 10 the the DT 40404 2103 11 waves wave NNS 40404 2103 12 , , , 40404 2103 13 the the DT 40404 2103 14 headlands headland NNS 40404 2103 15 come come VBP 40404 2103 16 to to TO 40404 2103 17 protect protect VB 40404 2103 18 them -PRON- PRP 40404 2103 19 , , , 40404 2103 20 as as IN 40404 2103 21 with with IN 40404 2103 22 breakwaters breakwater NNS 40404 2103 23 , , , 40404 2103 24 and and CC 40404 2103 25 prevent prevent VB 40404 2103 26 their -PRON- PRP$ 40404 2103 27 indefinite indefinite JJ 40404 2103 28 retreat retreat NN 40404 2103 29 . . . 40404 2104 1 The the DT 40404 2104 2 shore shore NN 40404 2104 3 takes take VBZ 40404 2104 4 a a DT 40404 2104 5 curve curve NN 40404 2104 6 of of IN 40404 2104 7 equilibrium equilibrium NN 40404 2104 8 , , , 40404 2104 9 along along IN 40404 2104 10 which which WDT 40404 2104 11 the the DT 40404 2104 12 hard hard JJ 40404 2104 13 rock rock NN 40404 2104 14 of of IN 40404 2104 15 the the DT 40404 2104 16 exposed exposed JJ 40404 2104 17 headland headland NN 40404 2104 18 and and CC 40404 2104 19 the the DT 40404 2104 20 weak weak JJ 40404 2104 21 rock rock NN 40404 2104 22 of of IN 40404 2104 23 the the DT 40404 2104 24 protected protect VBN 40404 2104 25 cove cove NN 40404 2104 26 wear wear VBP 40404 2104 27 back back RP 40404 2104 28 at at IN 40404 2104 29 an an DT 40404 2104 30 equal equal JJ 40404 2104 31 rate rate NN 40404 2104 32 . . . 40404 2105 1 [ [ -LRB- 40404 2105 2 Illustration illustration NN 40404 2105 3 : : : 40404 2105 4 Fig Fig NNP 40404 2105 5 . . . 40404 2106 1 139 139 CD 40404 2106 2 . . . 40404 2107 1 Coves cove NNS 40404 2107 2 formed form VBN 40404 2107 3 in in IN 40404 2107 4 Softer Softer NNP 40404 2107 5 Strata Strata NNP 40404 2107 6 _ _ NNP 40404 2107 7 S S NNP 40404 2107 8 _ _ NNP 40404 2107 9 , , , 40404 2107 10 _ _ NNP 40404 2107 11 S S NNP 40404 2107 12 _ _ NNP 40404 2107 13 ; ; : 40404 2107 14 while while IN 40404 2107 15 the the DT 40404 2107 16 Harder hard JJR 40404 2107 17 Strata Strata NNPS 40404 2107 18 _ _ NNP 40404 2107 19 H H NNP 40404 2107 20 _ _ NNP 40404 2107 21 , , , 40404 2107 22 _ _ NNP 40404 2107 23 H H NNP 40404 2107 24 _ _ NNP 40404 2107 25 , , , 40404 2107 26 are be VBP 40404 2107 27 left leave VBN 40404 2107 28 as as IN 40404 2107 29 Headlands headland NNS 40404 2107 30 ] ] -RRB- 40404 2107 31 = = NFP 40404 2107 32 Rate rate NN 40404 2107 33 of of IN 40404 2107 34 recession.= recession.= NN 40404 2107 35 The the DT 40404 2107 36 rate rate NN 40404 2107 37 at at IN 40404 2107 38 which which WDT 40404 2107 39 a a DT 40404 2107 40 shore shore NN 40404 2107 41 recedes recede VBZ 40404 2107 42 depends depend VBZ 40404 2107 43 on on IN 40404 2107 44 several several JJ 40404 2107 45 factors factor NNS 40404 2107 46 . . . 40404 2108 1 In in IN 40404 2108 2 soft soft JJ 40404 2108 3 or or CC 40404 2108 4 incoherent incoherent JJ 40404 2108 5 rocks rock NNS 40404 2108 6 exposed expose VBN 40404 2108 7 to to IN 40404 2108 8 violent violent JJ 40404 2108 9 storms storm NNS 40404 2108 10 the the DT 40404 2108 11 retreat retreat NN 40404 2108 12 is be VBZ 40404 2108 13 so so RB 40404 2108 14 rapid rapid JJ 40404 2108 15 as as IN 40404 2108 16 to to TO 40404 2108 17 be be VB 40404 2108 18 easily easily RB 40404 2108 19 measured measure VBN 40404 2108 20 . . . 40404 2109 1 The the DT 40404 2109 2 coast coast NN 40404 2109 3 of of IN 40404 2109 4 Yorkshire Yorkshire NNP 40404 2109 5 , , , 40404 2109 6 England England NNP 40404 2109 7 , , , 40404 2109 8 whose whose WP$ 40404 2109 9 cliffs cliff NNS 40404 2109 10 are be VBP 40404 2109 11 cut cut VBN 40404 2109 12 in in IN 40404 2109 13 glacial glacial JJ 40404 2109 14 drift drift NN 40404 2109 15 , , , 40404 2109 16 loses lose VBZ 40404 2109 17 seven seven CD 40404 2109 18 feet foot NNS 40404 2109 19 a a DT 40404 2109 20 year year NN 40404 2109 21 on on IN 40404 2109 22 the the DT 40404 2109 23 average average NN 40404 2109 24 , , , 40404 2109 25 and and CC 40404 2109 26 since since IN 40404 2109 27 the the DT 40404 2109 28 Norman Norman NNP 40404 2109 29 conquest conquest VBD 40404 2109 30 a a DT 40404 2109 31 strip strip NN 40404 2109 32 a a DT 40404 2109 33 mile mile NN 40404 2109 34 wide wide JJ 40404 2109 35 , , , 40404 2109 36 with with IN 40404 2109 37 farmsteads farmstead NNS 40404 2109 38 and and CC 40404 2109 39 villages village NNS 40404 2109 40 and and CC 40404 2109 41 historic historic JJ 40404 2109 42 seaports seaport NNS 40404 2109 43 , , , 40404 2109 44 has have VBZ 40404 2109 45 been be VBN 40404 2109 46 devoured devour VBN 40404 2109 47 by by IN 40404 2109 48 the the DT 40404 2109 49 sea sea NN 40404 2109 50 . . . 40404 2110 1 The the DT 40404 2110 2 sandy sandy JJ 40404 2110 3 south south NN 40404 2110 4 shore shore NN 40404 2110 5 of of IN 40404 2110 6 Martha Martha NNP 40404 2110 7 's 's POS 40404 2110 8 Vineyard Vineyard NNP 40404 2110 9 wears wear VBZ 40404 2110 10 back back RB 40404 2110 11 three three CD 40404 2110 12 feet foot NNS 40404 2110 13 a a DT 40404 2110 14 year year NN 40404 2110 15 . . . 40404 2111 1 But but CC 40404 2111 2 hard hard JJ 40404 2111 3 rocks rock NNS 40404 2111 4 retreat retreat NN 40404 2111 5 so so RB 40404 2111 6 slowly slowly RB 40404 2111 7 that that IN 40404 2111 8 their -PRON- PRP$ 40404 2111 9 recession recession NN 40404 2111 10 has have VBZ 40404 2111 11 seldom seldom RB 40404 2111 12 been be VBN 40404 2111 13 measured measure VBN 40404 2111 14 by by IN 40404 2111 15 the the DT 40404 2111 16 records record NNS 40404 2111 17 of of IN 40404 2111 18 history history NN 40404 2111 19 . . . 40404 2112 1 [ [ -LRB- 40404 2112 2 Illustration illustration NN 40404 2112 3 : : : 40404 2112 4 Fig Fig NNP 40404 2112 5 . . . 40404 2113 1 140 140 CD 40404 2113 2 . . . 40404 2114 1 A a DT 40404 2114 2 Pebble Pebble NNP 40404 2114 3 Beach Beach NNP 40404 2114 4 , , , 40404 2114 5 Cape Cape NNP 40404 2114 6 Ann Ann NNP 40404 2114 7 , , , 40404 2114 8 Massachusetts Massachusetts NNP 40404 2114 9 ] ] -RRB- 40404 2114 10 Shore Shore NNP 40404 2114 11 Drift Drift NNP 40404 2114 12 = = SYM 40404 2114 13 Bowlder bowlder NN 40404 2114 14 and and CC 40404 2114 15 pebble pebble JJ 40404 2114 16 beaches.= beaches.= NNS 40404 2114 17 About about IN 40404 2114 18 as as RB 40404 2114 19 fast fast RB 40404 2114 20 as as IN 40404 2114 21 formed form VBD 40404 2114 22 the the DT 40404 2114 23 waste waste NN 40404 2114 24 of of IN 40404 2114 25 the the DT 40404 2114 26 sea sea NN 40404 2114 27 cliff cliff NN 40404 2114 28 is be VBZ 40404 2114 29 swept sweep VBN 40404 2114 30 both both DT 40404 2114 31 along along IN 40404 2114 32 the the DT 40404 2114 33 shore shore NN 40404 2114 34 and and CC 40404 2114 35 out out IN 40404 2114 36 to to IN 40404 2114 37 sea sea NN 40404 2114 38 . . . 40404 2115 1 The the DT 40404 2115 2 road road NN 40404 2115 3 of of IN 40404 2115 4 waste waste NN 40404 2115 5 along along IN 40404 2115 6 shore shore NN 40404 2115 7 is be VBZ 40404 2115 8 the the DT 40404 2115 9 _ _ NNP 40404 2115 10 beach beach NN 40404 2115 11 _ _ NNP 40404 2115 12 . . . 40404 2116 1 We -PRON- PRP 40404 2116 2 may may MD 40404 2116 3 also also RB 40404 2116 4 define define VB 40404 2116 5 the the DT 40404 2116 6 beach beach NN 40404 2116 7 as as IN 40404 2116 8 the the DT 40404 2116 9 exposed expose VBN 40404 2116 10 edge edge NN 40404 2116 11 of of IN 40404 2116 12 the the DT 40404 2116 13 sheet sheet NN 40404 2116 14 of of IN 40404 2116 15 sediment sediment NN 40404 2116 16 formed form VBN 40404 2116 17 by by IN 40404 2116 18 the the DT 40404 2116 19 carriage carriage NN 40404 2116 20 of of IN 40404 2116 21 land land NN 40404 2116 22 waste waste NN 40404 2116 23 out out RP 40404 2116 24 to to IN 40404 2116 25 sea sea NN 40404 2116 26 . . . 40404 2117 1 At at IN 40404 2117 2 the the DT 40404 2117 3 foot foot NN 40404 2117 4 of of IN 40404 2117 5 sea sea NN 40404 2117 6 cliffs cliff NNS 40404 2117 7 , , , 40404 2117 8 where where WRB 40404 2117 9 the the DT 40404 2117 10 waves wave NNS 40404 2117 11 are be VBP 40404 2117 12 pounding pound VBG 40404 2117 13 hardest hard RBS 40404 2117 14 , , , 40404 2117 15 one one PRP 40404 2117 16 commonly commonly RB 40404 2117 17 finds find VBZ 40404 2117 18 the the DT 40404 2117 19 rock rock NN 40404 2117 20 bench bench NN 40404 2117 21 strewn strew VBN 40404 2117 22 on on IN 40404 2117 23 its -PRON- PRP$ 40404 2117 24 inner inner JJ 40404 2117 25 margin margin NN 40404 2117 26 with with IN 40404 2117 27 large large JJ 40404 2117 28 stones stone NNS 40404 2117 29 , , , 40404 2117 30 dislodged dislodge VBN 40404 2117 31 by by IN 40404 2117 32 the the DT 40404 2117 33 waves wave NNS 40404 2117 34 and and CC 40404 2117 35 by by IN 40404 2117 36 the the DT 40404 2117 37 weather weather NN 40404 2117 38 and and CC 40404 2117 39 somewhat somewhat RB 40404 2117 40 worn worn JJ 40404 2117 41 on on IN 40404 2117 42 their -PRON- PRP$ 40404 2117 43 corners corner NNS 40404 2117 44 and and CC 40404 2117 45 edges edge NNS 40404 2117 46 . . . 40404 2118 1 From from IN 40404 2118 2 this this DT 40404 2118 3 _ _ NNP 40404 2118 4 bowlder bowlder NN 40404 2118 5 beach beach NN 40404 2118 6 _ _ NNP 40404 2118 7 the the DT 40404 2118 8 smaller small JJR 40404 2118 9 fragments fragment NNS 40404 2118 10 of of IN 40404 2118 11 waste waste NN 40404 2118 12 from from IN 40404 2118 13 the the DT 40404 2118 14 cliff cliff NN 40404 2118 15 and and CC 40404 2118 16 the the DT 40404 2118 17 fragments fragment NNS 40404 2118 18 into into IN 40404 2118 19 which which WDT 40404 2118 20 the the DT 40404 2118 21 bowlders bowlder NNS 40404 2118 22 are be VBP 40404 2118 23 at at IN 40404 2118 24 last last JJ 40404 2118 25 broken broken JJ 40404 2118 26 drift drift NN 40404 2118 27 on on IN 40404 2118 28 to to IN 40404 2118 29 more more RBR 40404 2118 30 sheltered sheltered JJ 40404 2118 31 places place NNS 40404 2118 32 and and CC 40404 2118 33 there there EX 40404 2118 34 accumulate accumulate VBP 40404 2118 35 in in IN 40404 2118 36 a a DT 40404 2118 37 _ _ NNP 40404 2118 38 pebble pebble JJ 40404 2118 39 beach beach NN 40404 2118 40 _ _ NNP 40404 2118 41 , , , 40404 2118 42 made make VBN 40404 2118 43 of of IN 40404 2118 44 pebbles pebble NNS 40404 2118 45 well well RB 40404 2118 46 rounded round VBN 40404 2118 47 by by IN 40404 2118 48 the the DT 40404 2118 49 wear wear NN 40404 2118 50 which which WDT 40404 2118 51 they -PRON- PRP 40404 2118 52 have have VBP 40404 2118 53 suffered suffer VBN 40404 2118 54 . . . 40404 2119 1 Such such JJ 40404 2119 2 beaches beach NNS 40404 2119 3 form form VBP 40404 2119 4 a a DT 40404 2119 5 mill mill NN 40404 2119 6 whose whose WP$ 40404 2119 7 raw raw JJ 40404 2119 8 material material NN 40404 2119 9 is be VBZ 40404 2119 10 constantly constantly RB 40404 2119 11 supplied supply VBN 40404 2119 12 by by IN 40404 2119 13 the the DT 40404 2119 14 cliff cliff NN 40404 2119 15 . . . 40404 2120 1 The the DT 40404 2120 2 breakers breaker NNS 40404 2120 3 of of IN 40404 2120 4 storms storm NNS 40404 2120 5 set set VBD 40404 2120 6 it -PRON- PRP 40404 2120 7 in in IN 40404 2120 8 motion motion NN 40404 2120 9 to to IN 40404 2120 10 a a DT 40404 2120 11 depth depth NN 40404 2120 12 of of IN 40404 2120 13 several several JJ 40404 2120 14 feet foot NNS 40404 2120 15 , , , 40404 2120 16 grinding grind VBG 40404 2120 17 the the DT 40404 2120 18 pebbles pebble NNS 40404 2120 19 together together RB 40404 2120 20 with with IN 40404 2120 21 a a DT 40404 2120 22 clatter clatter NN 40404 2120 23 to to TO 40404 2120 24 be be VB 40404 2120 25 heard hear VBN 40404 2120 26 above above IN 40404 2120 27 the the DT 40404 2120 28 roar roar NN 40404 2120 29 of of IN 40404 2120 30 the the DT 40404 2120 31 surf surf NN 40404 2120 32 . . . 40404 2121 1 In in IN 40404 2121 2 such such PDT 40404 2121 3 a a DT 40404 2121 4 rock rock NN 40404 2121 5 crusher crusher NN 40404 2121 6 the the DT 40404 2121 7 life life NN 40404 2121 8 of of IN 40404 2121 9 a a DT 40404 2121 10 pebble pebble NN 40404 2121 11 is be VBZ 40404 2121 12 short short JJ 40404 2121 13 . . . 40404 2122 1 Where where WRB 40404 2122 2 ships ship NNS 40404 2122 3 have have VBP 40404 2122 4 stranded strand VBN 40404 2122 5 on on IN 40404 2122 6 our -PRON- PRP$ 40404 2122 7 Atlantic Atlantic NNP 40404 2122 8 coast coast NN 40404 2122 9 with with IN 40404 2122 10 cargoes cargo NNS 40404 2122 11 of of IN 40404 2122 12 hard hard RB 40404 2122 13 - - HYPH 40404 2122 14 burned burn VBN 40404 2122 15 brick brick NN 40404 2122 16 or or CC 40404 2122 17 of of IN 40404 2122 18 coal coal NN 40404 2122 19 , , , 40404 2122 20 a a DT 40404 2122 21 year year NN 40404 2122 22 of of IN 40404 2122 23 time time NN 40404 2122 24 and and CC 40404 2122 25 a a DT 40404 2122 26 drift drift NN 40404 2122 27 of of IN 40404 2122 28 five five CD 40404 2122 29 miles mile NNS 40404 2122 30 along along IN 40404 2122 31 the the DT 40404 2122 32 shore shore NN 40404 2122 33 have have VBP 40404 2122 34 proved prove VBN 40404 2122 35 enough enough RB 40404 2122 36 to to TO 40404 2122 37 wear wear VB 40404 2122 38 brick brick NN 40404 2122 39 and and CC 40404 2122 40 coal coal NN 40404 2122 41 to to IN 40404 2122 42 powder powder NN 40404 2122 43 . . . 40404 2123 1 At at IN 40404 2123 2 no no DT 40404 2123 3 great great JJ 40404 2123 4 distance distance NN 40404 2123 5 from from IN 40404 2123 6 their -PRON- PRP$ 40404 2123 7 source source NN 40404 2123 8 , , , 40404 2123 9 therefore therefore RB 40404 2123 10 , , , 40404 2123 11 pebble pebble JJ 40404 2123 12 beaches beach NNS 40404 2123 13 give give VBP 40404 2123 14 place place NN 40404 2123 15 to to IN 40404 2123 16 beaches beach NNS 40404 2123 17 of of IN 40404 2123 18 sand sand NN 40404 2123 19 , , , 40404 2123 20 which which WDT 40404 2123 21 occupy occupy VBP 40404 2123 22 the the DT 40404 2123 23 more more RBR 40404 2123 24 sheltered sheltered JJ 40404 2123 25 reaches reach NNS 40404 2123 26 of of IN 40404 2123 27 the the DT 40404 2123 28 shore shore NN 40404 2123 29 . . . 40404 2124 1 = = NFP 40404 2124 2 Sand sand NN 40404 2124 3 beaches.= beaches.= CD 40404 2124 4 The the DT 40404 2124 5 angular angular JJ 40404 2124 6 sand sand NN 40404 2124 7 grains grain NNS 40404 2124 8 of of IN 40404 2124 9 various various JJ 40404 2124 10 minerals mineral NNS 40404 2124 11 into into IN 40404 2124 12 which which WDT 40404 2124 13 pebbles pebble NNS 40404 2124 14 are be VBP 40404 2124 15 broken break VBN 40404 2124 16 by by IN 40404 2124 17 the the DT 40404 2124 18 waves wave NNS 40404 2124 19 are be VBP 40404 2124 20 ground grind VBN 40404 2124 21 together together RB 40404 2124 22 under under IN 40404 2124 23 the the DT 40404 2124 24 beating beating NN 40404 2124 25 surf surf NN 40404 2124 26 and and CC 40404 2124 27 rounded round VBD 40404 2124 28 , , , 40404 2124 29 and and CC 40404 2124 30 those those DT 40404 2124 31 of of IN 40404 2124 32 the the DT 40404 2124 33 softer soft JJR 40404 2124 34 minerals mineral NNS 40404 2124 35 are be VBP 40404 2124 36 crushed crush VBN 40404 2124 37 to to IN 40404 2124 38 powder powder NN 40404 2124 39 . . . 40404 2125 1 The the DT 40404 2125 2 process process NN 40404 2125 3 , , , 40404 2125 4 however however RB 40404 2125 5 , , , 40404 2125 6 is be VBZ 40404 2125 7 a a DT 40404 2125 8 slow slow JJ 40404 2125 9 one one NN 40404 2125 10 , , , 40404 2125 11 and and CC 40404 2125 12 if if IN 40404 2125 13 we -PRON- PRP 40404 2125 14 study study VBP 40404 2125 15 these these DT 40404 2125 16 sand sand NN 40404 2125 17 grains grain NNS 40404 2125 18 under under IN 40404 2125 19 a a DT 40404 2125 20 lens lens NN 40404 2125 21 we -PRON- PRP 40404 2125 22 may may MD 40404 2125 23 be be VB 40404 2125 24 surprised surprised JJ 40404 2125 25 to to TO 40404 2125 26 see see VB 40404 2125 27 that that DT 40404 2125 28 , , , 40404 2125 29 though though IN 40404 2125 30 their -PRON- PRP$ 40404 2125 31 corners corner NNS 40404 2125 32 and and CC 40404 2125 33 edges edge NNS 40404 2125 34 have have VBP 40404 2125 35 been be VBN 40404 2125 36 blunted blunt VBN 40404 2125 37 , , , 40404 2125 38 they -PRON- PRP 40404 2125 39 are be VBP 40404 2125 40 yet yet RB 40404 2125 41 far far RB 40404 2125 42 from from IN 40404 2125 43 the the DT 40404 2125 44 spherical spherical JJ 40404 2125 45 form form NN 40404 2125 46 of of IN 40404 2125 47 the the DT 40404 2125 48 pebbles pebble NNS 40404 2125 49 from from IN 40404 2125 50 which which WDT 40404 2125 51 they -PRON- PRP 40404 2125 52 were be VBD 40404 2125 53 derived derive VBN 40404 2125 54 . . . 40404 2126 1 The the DT 40404 2126 2 grains grain NNS 40404 2126 3 are be VBP 40404 2126 4 small small JJ 40404 2126 5 , , , 40404 2126 6 and and CC 40404 2126 7 in in IN 40404 2126 8 water water NN 40404 2126 9 they -PRON- PRP 40404 2126 10 have have VBP 40404 2126 11 lost lose VBN 40404 2126 12 about about IN 40404 2126 13 half half PDT 40404 2126 14 their -PRON- PRP$ 40404 2126 15 weight weight NN 40404 2126 16 in in IN 40404 2126 17 air air NN 40404 2126 18 ; ; : 40404 2126 19 the the DT 40404 2126 20 blows blow NNS 40404 2126 21 which which WDT 40404 2126 22 they -PRON- PRP 40404 2126 23 strike strike VBP 40404 2126 24 one one NN 40404 2126 25 another another DT 40404 2126 26 are be VBP 40404 2126 27 therefore therefore RB 40404 2126 28 weak weak JJ 40404 2126 29 . . . 40404 2127 1 Besides besides IN 40404 2127 2 , , , 40404 2127 3 each each DT 40404 2127 4 grain grain NN 40404 2127 5 of of IN 40404 2127 6 sand sand NN 40404 2127 7 of of IN 40404 2127 8 the the DT 40404 2127 9 wet wet JJ 40404 2127 10 beach beach NN 40404 2127 11 is be VBZ 40404 2127 12 protected protect VBN 40404 2127 13 by by IN 40404 2127 14 a a DT 40404 2127 15 cushion cushion NN 40404 2127 16 of of IN 40404 2127 17 water water NN 40404 2127 18 from from IN 40404 2127 19 the the DT 40404 2127 20 blows blow NNS 40404 2127 21 of of IN 40404 2127 22 its -PRON- PRP$ 40404 2127 23 neighbors neighbor NNS 40404 2127 24 . . . 40404 2128 1 The the DT 40404 2128 2 shape shape NN 40404 2128 3 and and CC 40404 2128 4 size size NN 40404 2128 5 of of IN 40404 2128 6 these these DT 40404 2128 7 grains grain NNS 40404 2128 8 and and CC 40404 2128 9 the the DT 40404 2128 10 relative relative JJ 40404 2128 11 proportion proportion NN 40404 2128 12 of of IN 40404 2128 13 grains grain NNS 40404 2128 14 of of IN 40404 2128 15 the the DT 40404 2128 16 softer soft JJR 40404 2128 17 minerals mineral NNS 40404 2128 18 which which WDT 40404 2128 19 still still RB 40404 2128 20 remain remain VBP 40404 2128 21 give give VB 40404 2128 22 a a DT 40404 2128 23 rough rough JJ 40404 2128 24 measure measure NN 40404 2128 25 of of IN 40404 2128 26 the the DT 40404 2128 27 distance distance NN 40404 2128 28 in in IN 40404 2128 29 space space NN 40404 2128 30 and and CC 40404 2128 31 time time NN 40404 2128 32 which which WDT 40404 2128 33 they -PRON- PRP 40404 2128 34 have have VBP 40404 2128 35 traveled travel VBN 40404 2128 36 from from IN 40404 2128 37 their -PRON- PRP$ 40404 2128 38 source source NN 40404 2128 39 . . . 40404 2129 1 The the DT 40404 2129 2 sand sand NN 40404 2129 3 of of IN 40404 2129 4 many many JJ 40404 2129 5 beaches beach NNS 40404 2129 6 , , , 40404 2129 7 derived derive VBN 40404 2129 8 from from IN 40404 2129 9 the the DT 40404 2129 10 rocks rock NNS 40404 2129 11 of of IN 40404 2129 12 adjacent adjacent JJ 40404 2129 13 cliffs cliff NNS 40404 2129 14 or or CC 40404 2129 15 brought bring VBN 40404 2129 16 in in RP 40404 2129 17 by by IN 40404 2129 18 torrential torrential JJ 40404 2129 19 streams stream NNS 40404 2129 20 from from IN 40404 2129 21 neighboring neighbor VBG 40404 2129 22 highlands highland NNS 40404 2129 23 , , , 40404 2129 24 is be VBZ 40404 2129 25 dark dark JJ 40404 2129 26 with with IN 40404 2129 27 grains grain NNS 40404 2129 28 of of IN 40404 2129 29 a a DT 40404 2129 30 number number NN 40404 2129 31 of of IN 40404 2129 32 minerals mineral NNS 40404 2129 33 softer soft JJR 40404 2129 34 than than IN 40404 2129 35 quartz quartz NNP 40404 2129 36 . . . 40404 2130 1 The the DT 40404 2130 2 white white JJ 40404 2130 3 sand sand NN 40404 2130 4 of of IN 40404 2130 5 other other JJ 40404 2130 6 beaches beach NNS 40404 2130 7 , , , 40404 2130 8 as as IN 40404 2130 9 those those DT 40404 2130 10 of of IN 40404 2130 11 the the DT 40404 2130 12 east east JJ 40404 2130 13 coast coast NN 40404 2130 14 of of IN 40404 2130 15 Florida Florida NNP 40404 2130 16 , , , 40404 2130 17 is be VBZ 40404 2130 18 almost almost RB 40404 2130 19 wholly wholly RB 40404 2130 20 composed compose VBN 40404 2130 21 of of IN 40404 2130 22 quartz quartz NN 40404 2130 23 grains grain NNS 40404 2130 24 ; ; , 40404 2130 25 for for IN 40404 2130 26 in in IN 40404 2130 27 its -PRON- PRP$ 40404 2130 28 long long JJ 40404 2130 29 travel travel NN 40404 2130 30 down down IN 40404 2130 31 the the DT 40404 2130 32 Atlantic Atlantic NNP 40404 2130 33 coast coast NN 40404 2130 34 the the DT 40404 2130 35 weaker weak JJR 40404 2130 36 minerals mineral NNS 40404 2130 37 have have VBP 40404 2130 38 been be VBN 40404 2130 39 worn wear VBN 40404 2130 40 to to TO 40404 2130 41 powder powder NN 40404 2130 42 and and CC 40404 2130 43 the the DT 40404 2130 44 hardest hard RBS 40404 2130 45 alone alone RB 40404 2130 46 survive survive VBP 40404 2130 47 . . . 40404 2131 1 How how WRB 40404 2131 2 does do VBZ 40404 2131 3 the the DT 40404 2131 4 absence absence NN 40404 2131 5 of of IN 40404 2131 6 cleavage cleavage NN 40404 2131 7 in in IN 40404 2131 8 quartz quartz NN 40404 2131 9 affect affect VBP 40404 2131 10 the the DT 40404 2131 11 durability durability NN 40404 2131 12 of of IN 40404 2131 13 quartz quartz NN 40404 2131 14 sand sand NN 40404 2131 15 ? ? . 40404 2132 1 = = NFP 40404 2132 2 How how WRB 40404 2132 3 shore shore NN 40404 2132 4 drift drift NN 40404 2132 5 migrates.= migrates.= NNS 40404 2132 6 It -PRON- PRP 40404 2132 7 is be VBZ 40404 2132 8 under under IN 40404 2132 9 the the DT 40404 2132 10 action action NN 40404 2132 11 of of IN 40404 2132 12 waves wave NNS 40404 2132 13 and and CC 40404 2132 14 currents current NNS 40404 2132 15 that that WDT 40404 2132 16 shore shore VBP 40404 2132 17 drift drift NN 40404 2132 18 migrates migrate NNS 40404 2132 19 slowly slowly RB 40404 2132 20 along along IN 40404 2132 21 a a DT 40404 2132 22 coast coast NN 40404 2132 23 . . . 40404 2133 1 Where where WRB 40404 2133 2 waves wave NNS 40404 2133 3 strike strike VBP 40404 2133 4 a a DT 40404 2133 5 coast coast NN 40404 2133 6 obliquely obliquely RB 40404 2133 7 they -PRON- PRP 40404 2133 8 drive drive VBP 40404 2133 9 the the DT 40404 2133 10 waste waste NN 40404 2133 11 before before IN 40404 2133 12 them -PRON- PRP 40404 2133 13 little little JJ 40404 2133 14 by by IN 40404 2133 15 little little JJ 40404 2133 16 along along IN 40404 2133 17 the the DT 40404 2133 18 shore shore NN 40404 2133 19 . . . 40404 2134 1 Thus thus RB 40404 2134 2 on on IN 40404 2134 3 a a DT 40404 2134 4 north north NN 40404 2134 5 - - HYPH 40404 2134 6 south south NN 40404 2134 7 coast coast NN 40404 2134 8 , , , 40404 2134 9 where where WRB 40404 2134 10 the the DT 40404 2134 11 predominant predominant JJ 40404 2134 12 storms storm NNS 40404 2134 13 are be VBP 40404 2134 14 from from IN 40404 2134 15 the the DT 40404 2134 16 northeast northeast NN 40404 2134 17 , , , 40404 2134 18 there there EX 40404 2134 19 will will MD 40404 2134 20 be be VB 40404 2134 21 a a DT 40404 2134 22 migration migration NN 40404 2134 23 of of IN 40404 2134 24 shore shore NN 40404 2134 25 drift drift NN 40404 2134 26 southwards southward NNS 40404 2134 27 . . . 40404 2135 1 All all DT 40404 2135 2 shores shore NNS 40404 2135 3 are be VBP 40404 2135 4 swept sweep VBN 40404 2135 5 also also RB 40404 2135 6 by by IN 40404 2135 7 currents current NNS 40404 2135 8 produced produce VBN 40404 2135 9 by by IN 40404 2135 10 winds wind NNS 40404 2135 11 and and CC 40404 2135 12 tides tide NNS 40404 2135 13 . . . 40404 2136 1 These these DT 40404 2136 2 are be VBP 40404 2136 3 usually usually RB 40404 2136 4 far far RB 40404 2136 5 too too RB 40404 2136 6 gentle gentle JJ 40404 2136 7 to to TO 40404 2136 8 transport transport VB 40404 2136 9 of of IN 40404 2136 10 themselves -PRON- PRP 40404 2136 11 the the DT 40404 2136 12 coarse coarse JJ 40404 2136 13 materials material NNS 40404 2136 14 of of IN 40404 2136 15 which which WDT 40404 2136 16 beaches beach NNS 40404 2136 17 are be VBP 40404 2136 18 made make VBN 40404 2136 19 . . . 40404 2137 1 But but CC 40404 2137 2 while while IN 40404 2137 3 the the DT 40404 2137 4 wave wave NN 40404 2137 5 stirs stir VBZ 40404 2137 6 the the DT 40404 2137 7 grains grain NNS 40404 2137 8 of of IN 40404 2137 9 sand sand NN 40404 2137 10 and and CC 40404 2137 11 gravel gravel NN 40404 2137 12 , , , 40404 2137 13 and and CC 40404 2137 14 for for IN 40404 2137 15 a a DT 40404 2137 16 moment moment NN 40404 2137 17 lifts lift VBZ 40404 2137 18 them -PRON- PRP 40404 2137 19 from from IN 40404 2137 20 the the DT 40404 2137 21 bottom bottom NN 40404 2137 22 , , , 40404 2137 23 the the DT 40404 2137 24 current current NN 40404 2137 25 carries carry VBZ 40404 2137 26 them -PRON- PRP 40404 2137 27 a a DT 40404 2137 28 step step NN 40404 2137 29 forward forward RB 40404 2137 30 on on IN 40404 2137 31 their -PRON- PRP$ 40404 2137 32 way way NN 40404 2137 33 . . . 40404 2138 1 The the DT 40404 2138 2 current current NN 40404 2138 3 can can MD 40404 2138 4 not not RB 40404 2138 5 lift lift VB 40404 2138 6 and and CC 40404 2138 7 the the DT 40404 2138 8 wave wave NN 40404 2138 9 can can MD 40404 2138 10 not not RB 40404 2138 11 carry carry VB 40404 2138 12 , , , 40404 2138 13 but but CC 40404 2138 14 together together RB 40404 2138 15 the the DT 40404 2138 16 two two CD 40404 2138 17 transport transport NN 40404 2138 18 the the DT 40404 2138 19 waste waste NN 40404 2138 20 along along IN 40404 2138 21 the the DT 40404 2138 22 shore shore NN 40404 2138 23 . . . 40404 2139 1 The the DT 40404 2139 2 road road NN 40404 2139 3 of of IN 40404 2139 4 shore shore NN 40404 2139 5 drift drift NN 40404 2139 6 is be VBZ 40404 2139 7 therefore therefore RB 40404 2139 8 the the DT 40404 2139 9 zone zone NN 40404 2139 10 of of IN 40404 2139 11 the the DT 40404 2139 12 breaking break VBG 40404 2139 13 waves wave NNS 40404 2139 14 . . . 40404 2140 1 [ [ -LRB- 40404 2140 2 Illustration illustration NN 40404 2140 3 : : : 40404 2140 4 Fig Fig NNP 40404 2140 5 . . . 40404 2141 1 141 141 CD 40404 2141 2 . . . 40404 2142 1 A a DT 40404 2142 2 Bay Bay NNP 40404 2142 3 Bar Bar NNP 40404 2142 4 , , , 40404 2142 5 Lake Lake NNP 40404 2142 6 Ontario Ontario NNP 40404 2142 7 ] ] -RRB- 40404 2142 8 = = NFP 40404 2142 9 The the DT 40404 2142 10 bay bay NN 40404 2142 11 - - HYPH 40404 2142 12 head head NN 40404 2142 13 beach.= beach.= NNP 40404 2142 14 As as IN 40404 2142 15 the the DT 40404 2142 16 waste waste NN 40404 2142 17 derived derive VBN 40404 2142 18 from from IN 40404 2142 19 the the DT 40404 2142 20 wear wear NN 40404 2142 21 of of IN 40404 2142 22 waves wave NNS 40404 2142 23 and and CC 40404 2142 24 that that WDT 40404 2142 25 brought bring VBD 40404 2142 26 in in RP 40404 2142 27 by by IN 40404 2142 28 streams stream NNS 40404 2142 29 is be VBZ 40404 2142 30 trailed trail VBN 40404 2142 31 along along IN 40404 2142 32 a a DT 40404 2142 33 coast coast NN 40404 2142 34 it -PRON- PRP 40404 2142 35 assumes assume VBZ 40404 2142 36 , , , 40404 2142 37 under under IN 40404 2142 38 varying varying NN 40404 2142 39 conditions condition NNS 40404 2142 40 , , , 40404 2142 41 a a DT 40404 2142 42 number number NN 40404 2142 43 of of IN 40404 2142 44 distinct distinct JJ 40404 2142 45 forms form NNS 40404 2142 46 . . . 40404 2143 1 When when WRB 40404 2143 2 swept sweep VBN 40404 2143 3 into into IN 40404 2143 4 the the DT 40404 2143 5 head head NN 40404 2143 6 of of IN 40404 2143 7 a a DT 40404 2143 8 sheltered sheltered JJ 40404 2143 9 bay bay NN 40404 2143 10 it -PRON- PRP 40404 2143 11 constitutes constitute VBZ 40404 2143 12 the the DT 40404 2143 13 bay bay NNP 40404 2143 14 - - HYPH 40404 2143 15 head head NN 40404 2143 16 beach beach NN 40404 2143 17 . . . 40404 2144 1 By by IN 40404 2144 2 the the DT 40404 2144 3 highest high JJS 40404 2144 4 storm storm NN 40404 2144 5 waves wave VBZ 40404 2144 6 the the DT 40404 2144 7 beach beach NN 40404 2144 8 is be VBZ 40404 2144 9 often often RB 40404 2144 10 built build VBN 40404 2144 11 higher high JJR 40404 2144 12 than than IN 40404 2144 13 the the DT 40404 2144 14 ground ground NN 40404 2144 15 immediately immediately RB 40404 2144 16 behind behind IN 40404 2144 17 it -PRON- PRP 40404 2144 18 , , , 40404 2144 19 and and CC 40404 2144 20 forms form VBZ 40404 2144 21 a a DT 40404 2144 22 dam dam NN 40404 2144 23 inclosing inclose VBG 40404 2144 24 a a DT 40404 2144 25 shallow shallow JJ 40404 2144 26 pond pond NN 40404 2144 27 or or CC 40404 2144 28 marsh marsh NNP 40404 2144 29 . . . 40404 2145 1 = = NFP 40404 2145 2 The the DT 40404 2145 3 bay bay NN 40404 2145 4 bar.= bar.= NNP 40404 2145 5 As as IN 40404 2145 6 the the DT 40404 2145 7 stream stream NN 40404 2145 8 of of IN 40404 2145 9 shore shore NN 40404 2145 10 drift drift NN 40404 2145 11 reaches reach VBZ 40404 2145 12 the the DT 40404 2145 13 mouth mouth NN 40404 2145 14 of of IN 40404 2145 15 a a DT 40404 2145 16 bay bay NN 40404 2145 17 of of IN 40404 2145 18 some some DT 40404 2145 19 size size NN 40404 2145 20 it -PRON- PRP 40404 2145 21 often often RB 40404 2145 22 occurs occur VBZ 40404 2145 23 that that IN 40404 2145 24 , , , 40404 2145 25 instead instead RB 40404 2145 26 of of IN 40404 2145 27 turning turn VBG 40404 2145 28 in in RP 40404 2145 29 , , , 40404 2145 30 it -PRON- PRP 40404 2145 31 sets set VBZ 40404 2145 32 directly directly RB 40404 2145 33 across across IN 40404 2145 34 toward toward IN 40404 2145 35 the the DT 40404 2145 36 opposite opposite JJ 40404 2145 37 headland headland NN 40404 2145 38 . . . 40404 2146 1 The the DT 40404 2146 2 waste waste NN 40404 2146 3 is be VBZ 40404 2146 4 carried carry VBN 40404 2146 5 out out RP 40404 2146 6 from from IN 40404 2146 7 shore shore NN 40404 2146 8 into into IN 40404 2146 9 the the DT 40404 2146 10 deeper deep JJR 40404 2146 11 waters water NNS 40404 2146 12 of of IN 40404 2146 13 the the DT 40404 2146 14 bay bay NNP 40404 2146 15 mouth mouth NNP 40404 2146 16 ; ; , 40404 2146 17 where where WRB 40404 2146 18 it -PRON- PRP 40404 2146 19 is be VBZ 40404 2146 20 no no RB 40404 2146 21 longer long RBR 40404 2146 22 supported support VBN 40404 2146 23 by by IN 40404 2146 24 the the DT 40404 2146 25 breaking break VBG 40404 2146 26 waves wave NNS 40404 2146 27 , , , 40404 2146 28 and and CC 40404 2146 29 sinks sink VBZ 40404 2146 30 to to IN 40404 2146 31 the the DT 40404 2146 32 bottom bottom NN 40404 2146 33 . . . 40404 2147 1 The the DT 40404 2147 2 dump dump NN 40404 2147 3 is be VBZ 40404 2147 4 gradually gradually RB 40404 2147 5 built build VBN 40404 2147 6 to to IN 40404 2147 7 the the DT 40404 2147 8 surface surface NN 40404 2147 9 as as IN 40404 2147 10 a a DT 40404 2147 11 stubby stubby NN 40404 2147 12 spur spur NN 40404 2147 13 , , , 40404 2147 14 pointing point VBG 40404 2147 15 across across IN 40404 2147 16 the the DT 40404 2147 17 bay bay NN 40404 2147 18 , , , 40404 2147 19 and and CC 40404 2147 20 as as IN 40404 2147 21 it -PRON- PRP 40404 2147 22 reaches reach VBZ 40404 2147 23 the the DT 40404 2147 24 zone zone NN 40404 2147 25 of of IN 40404 2147 26 wave wave NNP 40404 2147 27 action action NN 40404 2147 28 current current NN 40404 2147 29 and and CC 40404 2147 30 wave wave NN 40404 2147 31 can can MD 40404 2147 32 now now RB 40404 2147 33 combine combine VB 40404 2147 34 to to TO 40404 2147 35 carry carry VB 40404 2147 36 shore shore NN 40404 2147 37 drift drift NN 40404 2147 38 along along IN 40404 2147 39 it -PRON- PRP 40404 2147 40 , , , 40404 2147 41 depositing deposit VBG 40404 2147 42 their -PRON- PRP$ 40404 2147 43 load load NN 40404 2147 44 continually continually RB 40404 2147 45 at at IN 40404 2147 46 the the DT 40404 2147 47 point point NN 40404 2147 48 of of IN 40404 2147 49 the the DT 40404 2147 50 spur spur NN 40404 2147 51 . . . 40404 2148 1 An an DT 40404 2148 2 embankment embankment NN 40404 2148 3 is be VBZ 40404 2148 4 thus thus RB 40404 2148 5 constructed construct VBN 40404 2148 6 in in IN 40404 2148 7 much much RB 40404 2148 8 the the DT 40404 2148 9 same same JJ 40404 2148 10 manner manner NN 40404 2148 11 as as IN 40404 2148 12 a a DT 40404 2148 13 railway railway NN 40404 2148 14 fill fill NN 40404 2148 15 , , , 40404 2148 16 which which WDT 40404 2148 17 , , , 40404 2148 18 while while IN 40404 2148 19 it -PRON- PRP 40404 2148 20 is be VBZ 40404 2148 21 building build VBG 40404 2148 22 , , , 40404 2148 23 serves serve VBZ 40404 2148 24 as as IN 40404 2148 25 a a DT 40404 2148 26 roadway roadway NN 40404 2148 27 along along IN 40404 2148 28 which which WDT 40404 2148 29 the the DT 40404 2148 30 dirt dirt NN 40404 2148 31 from from IN 40404 2148 32 an an DT 40404 2148 33 adjacent adjacent JJ 40404 2148 34 cut cut NN 40404 2148 35 is be VBZ 40404 2148 36 carted cart VBN 40404 2148 37 to to TO 40404 2148 38 be be VB 40404 2148 39 dumped dump VBN 40404 2148 40 at at IN 40404 2148 41 the the DT 40404 2148 42 end end NN 40404 2148 43 . . . 40404 2149 1 When when WRB 40404 2149 2 the the DT 40404 2149 3 embankment embankment NN 40404 2149 4 is be VBZ 40404 2149 5 completed complete VBN 40404 2149 6 it -PRON- PRP 40404 2149 7 bridges bridge VBZ 40404 2149 8 the the DT 40404 2149 9 bay bay NN 40404 2149 10 with with IN 40404 2149 11 a a DT 40404 2149 12 highway highway NN 40404 2149 13 along along IN 40404 2149 14 which which WDT 40404 2149 15 shore shore NN 40404 2149 16 drift drift NN 40404 2149 17 now now RB 40404 2149 18 moves move VBZ 40404 2149 19 without without IN 40404 2149 20 interruption interruption NN 40404 2149 21 , , , 40404 2149 22 and and CC 40404 2149 23 becomes become VBZ 40404 2149 24 a a DT 40404 2149 25 bay bay NNP 40404 2149 26 bar bar NN 40404 2149 27 . . . 40404 2150 1 [ [ -LRB- 40404 2150 2 Illustration illustration NN 40404 2150 3 : : : 40404 2150 4 Fig Fig NNP 40404 2150 5 . . . 40404 2151 1 142 142 CD 40404 2151 2 . . . 40404 2152 1 A a DT 40404 2152 2 Hook Hook NNP 40404 2152 3 , , , 40404 2152 4 Lake Lake NNP 40404 2152 5 Michigan Michigan NNP 40404 2152 6 ] ] -RRB- 40404 2152 7 = = VBZ 40404 2152 8 Incomplete incomplete JJ 40404 2152 9 bay bay NN 40404 2152 10 bars.= bars.= CD 40404 2152 11 Under under IN 40404 2152 12 certain certain JJ 40404 2152 13 conditions condition NNS 40404 2152 14 the the DT 40404 2152 15 sea sea NN 40404 2152 16 can can MD 40404 2152 17 not not RB 40404 2152 18 carry carry VB 40404 2152 19 out out RP 40404 2152 20 its -PRON- PRP$ 40404 2152 21 intention intention NN 40404 2152 22 to to TO 40404 2152 23 bridge bridge VB 40404 2152 24 a a DT 40404 2152 25 bay bay NN 40404 2152 26 . . . 40404 2153 1 Rivers river NNS 40404 2153 2 discharging discharge VBG 40404 2153 3 in in IN 40404 2153 4 bays bay NNS 40404 2153 5 demand demand VBP 40404 2153 6 open open JJ 40404 2153 7 way way NN 40404 2153 8 to to IN 40404 2153 9 the the DT 40404 2153 10 ocean ocean NN 40404 2153 11 . . . 40404 2154 1 Strong strong JJ 40404 2154 2 tidal tidal JJ 40404 2154 3 currents current NNS 40404 2154 4 also also RB 40404 2154 5 are be VBP 40404 2154 6 able able JJ 40404 2154 7 to to TO 40404 2154 8 keep keep VB 40404 2154 9 open open JJ 40404 2154 10 channels channel NNS 40404 2154 11 scoured scour VBN 40404 2154 12 by by IN 40404 2154 13 their -PRON- PRP$ 40404 2154 14 ebb ebb NN 40404 2154 15 and and CC 40404 2154 16 flow flow NN 40404 2154 17 . . . 40404 2155 1 In in IN 40404 2155 2 such such JJ 40404 2155 3 cases case NNS 40404 2155 4 the the DT 40404 2155 5 most most RBS 40404 2155 6 that that WDT 40404 2155 7 land land NN 40404 2155 8 waste waste NN 40404 2155 9 can can MD 40404 2155 10 do do VB 40404 2155 11 is be VBZ 40404 2155 12 to to TO 40404 2155 13 build build VB 40404 2155 14 spits spit NNS 40404 2155 15 and and CC 40404 2155 16 shoals shoal NNS 40404 2155 17 , , , 40404 2155 18 narrowing narrow VBG 40404 2155 19 and and CC 40404 2155 20 shoaling shoal VBG 40404 2155 21 the the DT 40404 2155 22 channel channel NN 40404 2155 23 as as RB 40404 2155 24 much much RB 40404 2155 25 as as IN 40404 2155 26 possible possible JJ 40404 2155 27 . . . 40404 2156 1 Incomplete incomplete JJ 40404 2156 2 bay bay NN 40404 2156 3 bars bar NNS 40404 2156 4 sometimes sometimes RB 40404 2156 5 have have VBP 40404 2156 6 their -PRON- PRP$ 40404 2156 7 points point NNS 40404 2156 8 recurved recurve VBN 40404 2156 9 by by IN 40404 2156 10 currents current NNS 40404 2156 11 setting set VBG 40404 2156 12 at at IN 40404 2156 13 right right JJ 40404 2156 14 angles angle NNS 40404 2156 15 to to IN 40404 2156 16 the the DT 40404 2156 17 stream stream NN 40404 2156 18 of of IN 40404 2156 19 shore shore NN 40404 2156 20 drift drift NN 40404 2156 21 and and CC 40404 2156 22 are be VBP 40404 2156 23 then then RB 40404 2156 24 classified classify VBN 40404 2156 25 as as IN 40404 2156 26 _ _ NNP 40404 2156 27 hooks hook VBZ 40404 2156 28 _ _ NNP 40404 2156 29 ( ( -LRB- 40404 2156 30 Fig Fig NNP 40404 2156 31 . . . 40404 2157 1 142 142 CD 40404 2157 2 ) ) -RRB- 40404 2157 3 . . . 40404 2158 1 [ [ -LRB- 40404 2158 2 Illustration illustration NN 40404 2158 3 : : : 40404 2158 4 Fig Fig NNP 40404 2158 5 . . . 40404 2159 1 143 143 CD 40404 2159 2 . . . 40404 2160 1 Cross Cross NNP 40404 2160 2 Section Section NNP 40404 2160 3 of of IN 40404 2160 4 Sand Sand NNP 40404 2160 5 Reef Reef NNP 40404 2160 6 _ _ NNP 40404 2160 7 sr sr NNP 40404 2160 8 _ _ NNP 40404 2160 9 , , , 40404 2160 10 and and CC 40404 2160 11 Lagoon Lagoon NNP 40404 2160 12 ; ; : 40404 2160 13 _ _ NNP 40404 2160 14 sl sl NN 40404 2160 15 _ _ NNP 40404 2160 16 , , , 40404 2160 17 Sea Sea NNP 40404 2160 18 Level Level NNP 40404 2160 19 ] ] -RRB- 40404 2160 20 = = NFP 40404 2160 21 Sand sand NN 40404 2160 22 reefs.= reefs.= CD 40404 2160 23 On on IN 40404 2160 24 low low JJ 40404 2160 25 coasts coast NNS 40404 2160 26 where where WRB 40404 2160 27 shallow shallow JJ 40404 2160 28 water water NN 40404 2160 29 extends extend VBZ 40404 2160 30 some some DT 40404 2160 31 distance distance NN 40404 2160 32 out out RB 40404 2160 33 , , , 40404 2160 34 the the DT 40404 2160 35 highway highway NN 40404 2160 36 of of IN 40404 2160 37 shore shore NN 40404 2160 38 drift drift NN 40404 2160 39 lies lie VBZ 40404 2160 40 along along IN 40404 2160 41 a a DT 40404 2160 42 low low JJ 40404 2160 43 , , , 40404 2160 44 narrow narrow JJ 40404 2160 45 ridge ridge NN 40404 2160 46 , , , 40404 2160 47 termed term VBD 40404 2160 48 the the DT 40404 2160 49 sand sand NN 40404 2160 50 reef reef NN 40404 2160 51 , , , 40404 2160 52 separated separate VBN 40404 2160 53 from from IN 40404 2160 54 the the DT 40404 2160 55 land land NN 40404 2160 56 by by IN 40404 2160 57 a a DT 40404 2160 58 narrow narrow JJ 40404 2160 59 stretch stretch NN 40404 2160 60 of of IN 40404 2160 61 shallow shallow JJ 40404 2160 62 water water NN 40404 2160 63 called call VBN 40404 2160 64 the the DT 40404 2160 65 _ _ NNP 40404 2160 66 lagoon lagoon NN 40404 2160 67 _ _ NNP 40404 2160 68 ( ( -LRB- 40404 2160 69 Fig Fig NNP 40404 2160 70 . . . 40404 2161 1 143 143 LS 40404 2161 2 ) ) -RRB- 40404 2161 3 . . . 40404 2162 1 At at IN 40404 2162 2 intervals interval NNS 40404 2162 3 the the DT 40404 2162 4 reef reef NN 40404 2162 5 is be VBZ 40404 2162 6 held hold VBN 40404 2162 7 open open JJ 40404 2162 8 by by IN 40404 2162 9 _ _ NNP 40404 2162 10 inlets_,--gaps inlets_,--gaps NNP 40404 2162 11 through through IN 40404 2162 12 which which WDT 40404 2162 13 the the DT 40404 2162 14 tide tide NN 40404 2162 15 flows flow VBZ 40404 2162 16 and and CC 40404 2162 17 ebbs ebb NNS 40404 2162 18 , , , 40404 2162 19 and and CC 40404 2162 20 by by IN 40404 2162 21 which which WDT 40404 2162 22 the the DT 40404 2162 23 water water NN 40404 2162 24 of of IN 40404 2162 25 streams stream NNS 40404 2162 26 finds find VBZ 40404 2162 27 way way NN 40404 2162 28 to to IN 40404 2162 29 the the DT 40404 2162 30 sea sea NN 40404 2162 31 . . . 40404 2163 1 [ [ -LRB- 40404 2163 2 Illustration illustration NN 40404 2163 3 : : : 40404 2163 4 Fig Fig NNP 40404 2163 5 . . . 40404 2164 1 144 144 CD 40404 2164 2 . . . 40404 2165 1 Sand Sand NNP 40404 2165 2 Reef Reef NNP 40404 2165 3 and and CC 40404 2165 4 Lagoon Lagoon NNP 40404 2165 5 , , , 40404 2165 6 Texas Texas NNP 40404 2165 7 ] ] -RRB- 40404 2165 8 No no DT 40404 2165 9 finer fine JJR 40404 2165 10 example example NN 40404 2165 11 of of IN 40404 2165 12 this this DT 40404 2165 13 kind kind NN 40404 2165 14 of of IN 40404 2165 15 shore shore NN 40404 2165 16 line line NN 40404 2165 17 is be VBZ 40404 2165 18 to to TO 40404 2165 19 be be VB 40404 2165 20 found find VBN 40404 2165 21 in in IN 40404 2165 22 the the DT 40404 2165 23 world world NN 40404 2165 24 than than IN 40404 2165 25 the the DT 40404 2165 26 coast coast NN 40404 2165 27 of of IN 40404 2165 28 Texas Texas NNP 40404 2165 29 . . . 40404 2166 1 From from IN 40404 2166 2 near near IN 40404 2166 3 the the DT 40404 2166 4 mouth mouth NN 40404 2166 5 of of IN 40404 2166 6 the the DT 40404 2166 7 Rio Rio NNP 40404 2166 8 Grande Grande NNP 40404 2166 9 a a DT 40404 2166 10 continuous continuous JJ 40404 2166 11 sand sand NN 40404 2166 12 reef reef NN 40404 2166 13 draws draw VBZ 40404 2166 14 its -PRON- PRP$ 40404 2166 15 even even JJ 40404 2166 16 curve curve NN 40404 2166 17 for for IN 40404 2166 18 a a DT 40404 2166 19 hundred hundred CD 40404 2166 20 miles mile NNS 40404 2166 21 to to IN 40404 2166 22 Corpus Corpus NNP 40404 2166 23 Christi Christi NNP 40404 2166 24 Pass Pass NNP 40404 2166 25 , , , 40404 2166 26 and and CC 40404 2166 27 the the DT 40404 2166 28 reefs reef NNS 40404 2166 29 are be VBP 40404 2166 30 but but CC 40404 2166 31 seldom seldom RB 40404 2166 32 interrupted interrupt VBN 40404 2166 33 by by IN 40404 2166 34 inlets inlet NNS 40404 2166 35 as as IN 40404 2166 36 far far RB 40404 2166 37 north north RB 40404 2166 38 as as IN 40404 2166 39 Galveston Galveston NNP 40404 2166 40 Harbor Harbor NNP 40404 2166 41 . . . 40404 2167 1 On on IN 40404 2167 2 this this DT 40404 2167 3 coast coast NN 40404 2167 4 the the DT 40404 2167 5 tides tide NNS 40404 2167 6 are be VBP 40404 2167 7 variable variable JJ 40404 2167 8 and and CC 40404 2167 9 exceptionally exceptionally RB 40404 2167 10 weak weak JJ 40404 2167 11 , , , 40404 2167 12 being be VBG 40404 2167 13 less less JJR 40404 2167 14 than than IN 40404 2167 15 one one CD 40404 2167 16 foot foot NN 40404 2167 17 in in IN 40404 2167 18 height height NN 40404 2167 19 , , , 40404 2167 20 while while IN 40404 2167 21 the the DT 40404 2167 22 amount amount NN 40404 2167 23 of of IN 40404 2167 24 waste waste NN 40404 2167 25 swept sweep VBD 40404 2167 26 along along IN 40404 2167 27 the the DT 40404 2167 28 shore shore NN 40404 2167 29 is be VBZ 40404 2167 30 large large JJ 40404 2167 31 . . . 40404 2168 1 The the DT 40404 2168 2 lagoon lagoon NN 40404 2168 3 is be VBZ 40404 2168 4 extremely extremely RB 40404 2168 5 shallow shallow JJ 40404 2168 6 , , , 40404 2168 7 and and CC 40404 2168 8 much much JJ 40404 2168 9 of of IN 40404 2168 10 it -PRON- PRP 40404 2168 11 is be VBZ 40404 2168 12 a a DT 40404 2168 13 mud mud NN 40404 2168 14 flat flat NN 40404 2168 15 too too RB 40404 2168 16 shoal shoal NN 40404 2168 17 for for IN 40404 2168 18 even even RB 40404 2168 19 small small JJ 40404 2168 20 boats boat NNS 40404 2168 21 . . . 40404 2169 1 On on IN 40404 2169 2 the the DT 40404 2169 3 coast coast NN 40404 2169 4 of of IN 40404 2169 5 New New NNP 40404 2169 6 Jersey Jersey NNP 40404 2169 7 strong strong JJ 40404 2169 8 tides tide NNS 40404 2169 9 are be VBP 40404 2169 10 able able JJ 40404 2169 11 to to TO 40404 2169 12 keep keep VB 40404 2169 13 open open JJ 40404 2169 14 inlets inlet NNS 40404 2169 15 at at IN 40404 2169 16 intervals interval NNS 40404 2169 17 of of IN 40404 2169 18 from from IN 40404 2169 19 two two CD 40404 2169 20 to to TO 40404 2169 21 twenty twenty CD 40404 2169 22 miles mile NNS 40404 2169 23 in in IN 40404 2169 24 spite spite NN 40404 2169 25 of of IN 40404 2169 26 a a DT 40404 2169 27 heavy heavy JJ 40404 2169 28 alongshore alongshore NN 40404 2169 29 drift drift NN 40404 2169 30 . . . 40404 2170 1 Sand sand NN 40404 2170 2 reefs reef NNS 40404 2170 3 are be VBP 40404 2170 4 formed form VBN 40404 2170 5 where where WRB 40404 2170 6 the the DT 40404 2170 7 water water NN 40404 2170 8 is be VBZ 40404 2170 9 so so RB 40404 2170 10 shallow shallow JJ 40404 2170 11 near near IN 40404 2170 12 shore shore NN 40404 2170 13 that that WDT 40404 2170 14 storm storm NN 40404 2170 15 waves wave NNS 40404 2170 16 can can MD 40404 2170 17 not not RB 40404 2170 18 run run VB 40404 2170 19 in in IN 40404 2170 20 it -PRON- PRP 40404 2170 21 and and CC 40404 2170 22 therefore therefore RB 40404 2170 23 break break VBP 40404 2170 24 some some DT 40404 2170 25 distance distance NN 40404 2170 26 out out RP 40404 2170 27 from from IN 40404 2170 28 land land NN 40404 2170 29 . . . 40404 2171 1 Where where WRB 40404 2171 2 storm storm NN 40404 2171 3 waves wave NNS 40404 2171 4 first first RB 40404 2171 5 drag drag VBP 40404 2171 6 bottom bottom NN 40404 2171 7 they -PRON- PRP 40404 2171 8 erode erode VBP 40404 2171 9 and and CC 40404 2171 10 deepen deepen VBP 40404 2171 11 the the DT 40404 2171 12 sea sea NN 40404 2171 13 floor floor NN 40404 2171 14 , , , 40404 2171 15 and and CC 40404 2171 16 sweep sweep VB 40404 2171 17 in in IN 40404 2171 18 sediment sediment NN 40404 2171 19 as as RB 40404 2171 20 far far RB 40404 2171 21 as as IN 40404 2171 22 the the DT 40404 2171 23 line line NN 40404 2171 24 where where WRB 40404 2171 25 they -PRON- PRP 40404 2171 26 break break VBP 40404 2171 27 . . . 40404 2172 1 Here here RB 40404 2172 2 , , , 40404 2172 3 where where WRB 40404 2172 4 they -PRON- PRP 40404 2172 5 lose lose VBP 40404 2172 6 their -PRON- PRP$ 40404 2172 7 force force NN 40404 2172 8 , , , 40404 2172 9 they -PRON- PRP 40404 2172 10 drop drop VBP 40404 2172 11 their -PRON- PRP$ 40404 2172 12 load load NN 40404 2172 13 and and CC 40404 2172 14 beat beat VBD 40404 2172 15 up up RP 40404 2172 16 the the DT 40404 2172 17 ridge ridge NN 40404 2172 18 which which WDT 40404 2172 19 is be VBZ 40404 2172 20 known know VBN 40404 2172 21 as as IN 40404 2172 22 the the DT 40404 2172 23 sand sand NN 40404 2172 24 reef reef NN 40404 2172 25 when when WRB 40404 2172 26 it -PRON- PRP 40404 2172 27 reaches reach VBZ 40404 2172 28 the the DT 40404 2172 29 surface surface NN 40404 2172 30 . . . 40404 2173 1 Shores shore NNS 40404 2173 2 of of IN 40404 2173 3 Elevation elevation NN 40404 2173 4 and and CC 40404 2173 5 Depression Depression NNP 40404 2173 6 Our -PRON- PRP$ 40404 2173 7 studies study NNS 40404 2173 8 have have VBP 40404 2173 9 already already RB 40404 2173 10 brought bring VBN 40404 2173 11 to to IN 40404 2173 12 our -PRON- PRP$ 40404 2173 13 notice notice NN 40404 2173 14 two two CD 40404 2173 15 distinct distinct JJ 40404 2173 16 forms form NNS 40404 2173 17 of of IN 40404 2173 18 strand strand NNP 40404 2173 19 lines,--one lines,--one NNP 40404 2173 20 the the DT 40404 2173 21 high high JJ 40404 2173 22 , , , 40404 2173 23 rocky rocky JJ 40404 2173 24 coast coast NN 40404 2173 25 cut cut VBD 40404 2173 26 back back RB 40404 2173 27 to to IN 40404 2173 28 cliffs cliff NNS 40404 2173 29 by by IN 40404 2173 30 the the DT 40404 2173 31 attack attack NN 40404 2173 32 of of IN 40404 2173 33 the the DT 40404 2173 34 waves wave NNS 40404 2173 35 , , , 40404 2173 36 and and CC 40404 2173 37 the the DT 40404 2173 38 other other JJ 40404 2173 39 the the DT 40404 2173 40 low low JJ 40404 2173 41 , , , 40404 2173 42 sandy sandy JJ 40404 2173 43 coast coast NN 40404 2173 44 where where WRB 40404 2173 45 the the DT 40404 2173 46 waves wave NNS 40404 2173 47 break break VBP 40404 2173 48 usually usually RB 40404 2173 49 upon upon IN 40404 2173 50 the the DT 40404 2173 51 sand sand NN 40404 2173 52 reef reef NN 40404 2173 53 . . . 40404 2174 1 To to TO 40404 2174 2 understand understand VB 40404 2174 3 the the DT 40404 2174 4 origin origin NN 40404 2174 5 of of IN 40404 2174 6 these these DT 40404 2174 7 two two CD 40404 2174 8 types type NNS 40404 2174 9 we -PRON- PRP 40404 2174 10 must must MD 40404 2174 11 know know VB 40404 2174 12 that that IN 40404 2174 13 the the DT 40404 2174 14 meeting meeting NN 40404 2174 15 place place NN 40404 2174 16 of of IN 40404 2174 17 sea sea NN 40404 2174 18 and and CC 40404 2174 19 land land NN 40404 2174 20 is be VBZ 40404 2174 21 determined determine VBN 40404 2174 22 primarily primarily RB 40404 2174 23 by by IN 40404 2174 24 movements movement NNS 40404 2174 25 of of IN 40404 2174 26 the the DT 40404 2174 27 earth earth NN 40404 2174 28 's 's POS 40404 2174 29 crust crust NN 40404 2174 30 . . . 40404 2175 1 Where where WRB 40404 2175 2 a a DT 40404 2175 3 coast coast NN 40404 2175 4 land land NN 40404 2175 5 emerges emerge VBZ 40404 2175 6 the the DT 40404 2175 7 -- -- : 40404 2175 8 shore shore NN 40404 2175 9 line line NN 40404 2175 10 moves move VBZ 40404 2175 11 seaward seaward NN 40404 2175 12 ; ; : 40404 2175 13 where where WRB 40404 2175 14 it -PRON- PRP 40404 2175 15 is be VBZ 40404 2175 16 being be VBG 40404 2175 17 submerged submerge VBN 40404 2175 18 the the DT 40404 2175 19 shore shore NN 40404 2175 20 line line NN 40404 2175 21 advances advance VBZ 40404 2175 22 on on IN 40404 2175 23 the the DT 40404 2175 24 land land NN 40404 2175 25 . . . 40404 2176 1 = = NFP 40404 2176 2 Shores shore NNS 40404 2176 3 of of IN 40404 2176 4 elevation.= elevation.= CD 40404 2176 5 The the DT 40404 2176 6 retreat retreat NN 40404 2176 7 of of IN 40404 2176 8 the the DT 40404 2176 9 sea sea NN 40404 2176 10 , , , 40404 2176 11 either either CC 40404 2176 12 because because IN 40404 2176 13 of of IN 40404 2176 14 a a DT 40404 2176 15 local local JJ 40404 2176 16 uplift uplift NN 40404 2176 17 of of IN 40404 2176 18 the the DT 40404 2176 19 land land NN 40404 2176 20 or or CC 40404 2176 21 for for IN 40404 2176 22 any any DT 40404 2176 23 other other JJ 40404 2176 24 reason reason NN 40404 2176 25 , , , 40404 2176 26 such such JJ 40404 2176 27 as as IN 40404 2176 28 the the DT 40404 2176 29 lowering lowering NN 40404 2176 30 of of IN 40404 2176 31 any any DT 40404 2176 32 portion portion NN 40404 2176 33 of of IN 40404 2176 34 ocean ocean NN 40404 2176 35 bottom bottom NN 40404 2176 36 , , , 40404 2176 37 lays lay VBZ 40404 2176 38 bare bare JJ 40404 2176 39 the the DT 40404 2176 40 inner inner JJ 40404 2176 41 margin margin NN 40404 2176 42 of of IN 40404 2176 43 the the DT 40404 2176 44 sea sea NN 40404 2176 45 floor floor NN 40404 2176 46 . . . 40404 2177 1 Where where WRB 40404 2177 2 the the DT 40404 2177 3 sea sea NN 40404 2177 4 floor floor NN 40404 2177 5 has have VBZ 40404 2177 6 long long RB 40404 2177 7 received receive VBN 40404 2177 8 the the DT 40404 2177 9 waste waste NN 40404 2177 10 of of IN 40404 2177 11 the the DT 40404 2177 12 land land NN 40404 2177 13 it -PRON- PRP 40404 2177 14 has have VBZ 40404 2177 15 been be VBN 40404 2177 16 built build VBN 40404 2177 17 up up IN 40404 2177 18 to to IN 40404 2177 19 a a DT 40404 2177 20 smooth smooth JJ 40404 2177 21 , , , 40404 2177 22 subaqueous subaqueous JJ 40404 2177 23 plain plain JJ 40404 2177 24 , , , 40404 2177 25 gently gently RB 40404 2177 26 shelving shelve VBG 40404 2177 27 from from IN 40404 2177 28 the the DT 40404 2177 29 land land NN 40404 2177 30 . . . 40404 2178 1 Since since IN 40404 2178 2 the the DT 40404 2178 3 new new JJ 40404 2178 4 shore shore NN 40404 2178 5 line line NN 40404 2178 6 is be VBZ 40404 2178 7 drawn draw VBN 40404 2178 8 across across IN 40404 2178 9 this this DT 40404 2178 10 even even RB 40404 2178 11 surface surface NN 40404 2178 12 it -PRON- PRP 40404 2178 13 is be VBZ 40404 2178 14 simple simple JJ 40404 2178 15 and and CC 40404 2178 16 regular regular JJ 40404 2178 17 , , , 40404 2178 18 and and CC 40404 2178 19 is be VBZ 40404 2178 20 bordered border VBN 40404 2178 21 on on IN 40404 2178 22 the the DT 40404 2178 23 one one CD 40404 2178 24 side side NN 40404 2178 25 by by IN 40404 2178 26 shallow shallow JJ 40404 2178 27 water water NN 40404 2178 28 gradually gradually RB 40404 2178 29 deepening deepen VBG 40404 2178 30 seaward seaward RB 40404 2178 31 , , , 40404 2178 32 and and CC 40404 2178 33 on on IN 40404 2178 34 the the DT 40404 2178 35 other other JJ 40404 2178 36 by by IN 40404 2178 37 low low JJ 40404 2178 38 land land NN 40404 2178 39 composed compose VBN 40404 2178 40 of of IN 40404 2178 41 material material NN 40404 2178 42 which which WDT 40404 2178 43 has have VBZ 40404 2178 44 not not RB 40404 2178 45 yet yet RB 40404 2178 46 thoroughly thoroughly RB 40404 2178 47 consolidated consolidate VBN 40404 2178 48 to to TO 40404 2178 49 firm firm VB 40404 2178 50 rock rock NN 40404 2178 51 . . . 40404 2179 1 A a DT 40404 2179 2 sand sand NN 40404 2179 3 reef reef NN 40404 2179 4 is be VBZ 40404 2179 5 soon soon RB 40404 2179 6 beaten beat VBN 40404 2179 7 up up RP 40404 2179 8 by by IN 40404 2179 9 the the DT 40404 2179 10 waves wave NNS 40404 2179 11 , , , 40404 2179 12 and and CC 40404 2179 13 for for IN 40404 2179 14 some some DT 40404 2179 15 time time NN 40404 2179 16 conditions condition NNS 40404 2179 17 will will MD 40404 2179 18 favor favor VB 40404 2179 19 its -PRON- PRP$ 40404 2179 20 growth growth NN 40404 2179 21 . . . 40404 2180 1 The the DT 40404 2180 2 loss loss NN 40404 2180 3 of of IN 40404 2180 4 sand sand NN 40404 2180 5 driven drive VBN 40404 2180 6 into into IN 40404 2180 7 the the DT 40404 2180 8 lagoon lagoon NN 40404 2180 9 beyond beyond RB 40404 2180 10 , , , 40404 2180 11 and and CC 40404 2180 12 of of IN 40404 2180 13 that that DT 40404 2180 14 ground ground NN 40404 2180 15 to to TO 40404 2180 16 powder powder NN 40404 2180 17 by by IN 40404 2180 18 the the DT 40404 2180 19 surf surf NN 40404 2180 20 and and CC 40404 2180 21 carried carry VBD 40404 2180 22 out out RP 40404 2180 23 to to IN 40404 2180 24 sea sea NN 40404 2180 25 , , , 40404 2180 26 is be VBZ 40404 2180 27 more more JJR 40404 2180 28 than than IN 40404 2180 29 made make VBN 40404 2180 30 up up RP 40404 2180 31 by by IN 40404 2180 32 the the DT 40404 2180 33 stream stream NN 40404 2180 34 of of IN 40404 2180 35 alongshore alongshore NNP 40404 2180 36 drift drift NNP 40404 2180 37 , , , 40404 2180 38 and and CC 40404 2180 39 especially especially RB 40404 2180 40 by by IN 40404 2180 41 the the DT 40404 2180 42 drag drag NN 40404 2180 43 of of IN 40404 2180 44 sediments sediment NNS 40404 2180 45 to to IN 40404 2180 46 the the DT 40404 2180 47 reef reef NN 40404 2180 48 by by IN 40404 2180 49 the the DT 40404 2180 50 waves wave NNS 40404 2180 51 as as IN 40404 2180 52 they -PRON- PRP 40404 2180 53 deepen deepen VBP 40404 2180 54 the the DT 40404 2180 55 sea sea NN 40404 2180 56 floor floor NN 40404 2180 57 on on IN 40404 2180 58 its -PRON- PRP$ 40404 2180 59 seaward seaward NN 40404 2180 60 side side NN 40404 2180 61 . . . 40404 2181 1 Meanwhile meanwhile RB 40404 2181 2 the the DT 40404 2181 3 lagoon lagoon NN 40404 2181 4 gradually gradually RB 40404 2181 5 fills fill VBZ 40404 2181 6 with with IN 40404 2181 7 waste waste NN 40404 2181 8 from from IN 40404 2181 9 the the DT 40404 2181 10 reef reef NN 40404 2181 11 and and CC 40404 2181 12 from from IN 40404 2181 13 the the DT 40404 2181 14 land land NN 40404 2181 15 . . . 40404 2182 1 It -PRON- PRP 40404 2182 2 is be VBZ 40404 2182 3 invaded invade VBN 40404 2182 4 by by IN 40404 2182 5 various various JJ 40404 2182 6 grasses grass NNS 40404 2182 7 and and CC 40404 2182 8 reeds reed NNS 40404 2182 9 which which WDT 40404 2182 10 have have VBP 40404 2182 11 learned learn VBN 40404 2182 12 to to TO 40404 2182 13 grow grow VB 40404 2182 14 in in IN 40404 2182 15 salt salt NN 40404 2182 16 and and CC 40404 2182 17 brackish brackish JJ 40404 2182 18 water water NN 40404 2182 19 ; ; : 40404 2182 20 the the DT 40404 2182 21 marsh marsh NNP 40404 2182 22 , , , 40404 2182 23 laid lay VBD 40404 2182 24 bare bare JJ 40404 2182 25 only only RB 40404 2182 26 at at IN 40404 2182 27 low low JJ 40404 2182 28 tide tide NN 40404 2182 29 , , , 40404 2182 30 is be VBZ 40404 2182 31 built build VBN 40404 2182 32 above above IN 40404 2182 33 high high JJ 40404 2182 34 tide tide NN 40404 2182 35 by by IN 40404 2182 36 wind wind NN 40404 2182 37 drift drift NN 40404 2182 38 and and CC 40404 2182 39 vegetable vegetable NN 40404 2182 40 deposits deposit NNS 40404 2182 41 , , , 40404 2182 42 and and CC 40404 2182 43 becomes become VBZ 40404 2182 44 a a DT 40404 2182 45 meadow meadow NN 40404 2182 46 , , , 40404 2182 47 soldering solder VBG 40404 2182 48 the the DT 40404 2182 49 sand sand NN 40404 2182 50 reef reef NN 40404 2182 51 to to IN 40404 2182 52 the the DT 40404 2182 53 mainland mainland NN 40404 2182 54 . . . 40404 2183 1 While while IN 40404 2183 2 the the DT 40404 2183 3 lagoon lagoon NN 40404 2183 4 has have VBZ 40404 2183 5 been be VBN 40404 2183 6 filling fill VBG 40404 2183 7 , , , 40404 2183 8 the the DT 40404 2183 9 waves wave NNS 40404 2183 10 have have VBP 40404 2183 11 been be VBN 40404 2183 12 so so RB 40404 2183 13 deepening deepen VBG 40404 2183 14 the the DT 40404 2183 15 sea sea NN 40404 2183 16 floor floor NN 40404 2183 17 off off IN 40404 2183 18 the the DT 40404 2183 19 sand sand NN 40404 2183 20 reef reef NN 40404 2183 21 that that IN 40404 2183 22 at at IN 40404 2183 23 last last RB 40404 2183 24 they -PRON- PRP 40404 2183 25 are be VBP 40404 2183 26 able able JJ 40404 2183 27 to to TO 40404 2183 28 attack attack VB 40404 2183 29 it -PRON- PRP 40404 2183 30 vigorously vigorously RB 40404 2183 31 . . . 40404 2184 1 They -PRON- PRP 40404 2184 2 now now RB 40404 2184 3 wear wear VBP 40404 2184 4 it -PRON- PRP 40404 2184 5 back back RP 40404 2184 6 , , , 40404 2184 7 and and CC 40404 2184 8 , , , 40404 2184 9 driving drive VBG 40404 2184 10 the the DT 40404 2184 11 shore shore NN 40404 2184 12 line line NN 40404 2184 13 across across IN 40404 2184 14 the the DT 40404 2184 15 lagoon lagoon NN 40404 2184 16 or or CC 40404 2184 17 meadow meadow NN 40404 2184 18 , , , 40404 2184 19 cut cut VB 40404 2184 20 a a DT 40404 2184 21 line line NN 40404 2184 22 of of IN 40404 2184 23 low low JJ 40404 2184 24 cliffs cliff NNS 40404 2184 25 on on IN 40404 2184 26 the the DT 40404 2184 27 mainland mainland NN 40404 2184 28 . . . 40404 2185 1 Such such PDT 40404 2185 2 a a DT 40404 2185 3 shore shore NN 40404 2185 4 is be VBZ 40404 2185 5 that that DT 40404 2185 6 of of IN 40404 2185 7 Gascony Gascony NNP 40404 2185 8 in in IN 40404 2185 9 southwestern southwestern JJ 40404 2185 10 France,--a france,--a JJ 40404 2185 11 low low JJ 40404 2185 12 , , , 40404 2185 13 straight straight JJ 40404 2185 14 , , , 40404 2185 15 sandy sandy JJ 40404 2185 16 shore shore NN 40404 2185 17 , , , 40404 2185 18 bordered border VBN 40404 2185 19 by by IN 40404 2185 20 dunes dune NNS 40404 2185 21 and and CC 40404 2185 22 unprotected unprotecte VBN 40404 2185 23 by by IN 40404 2185 24 reefs reef NNS 40404 2185 25 from from IN 40404 2185 26 the the DT 40404 2185 27 attack attack NN 40404 2185 28 of of IN 40404 2185 29 the the DT 40404 2185 30 waves wave NNS 40404 2185 31 of of IN 40404 2185 32 the the DT 40404 2185 33 Bay Bay NNP 40404 2185 34 of of IN 40404 2185 35 Biscay Biscay NNP 40404 2185 36 . . . 40404 2186 1 [ [ -LRB- 40404 2186 2 Illustration illustration NN 40404 2186 3 : : : 40404 2186 4 Fig Fig NNP 40404 2186 5 . . . 40404 2187 1 145 145 CD 40404 2187 2 . . . 40404 2188 1 Map Map NNP 40404 2188 2 of of IN 40404 2188 3 New New NNP 40404 2188 4 Jersey Jersey NNP 40404 2188 5 , , , 40404 2188 6 with with IN 40404 2188 7 that that DT 40404 2188 8 Portion Portion NNP 40404 2188 9 of of IN 40404 2188 10 the the DT 40404 2188 11 State State NNP 40404 2188 12 one one CD 40404 2188 13 Hundred hundred CD 40404 2188 14 Feet foot NNS 40404 2188 15 and and CC 40404 2188 16 more more RBR 40404 2188 17 above above IN 40404 2188 18 Sea Sea NNP 40404 2188 19 Level Level NNP 40404 2188 20 shaded shade VBD 40404 2188 21 Describe Describe NNP 40404 2188 22 the the DT 40404 2188 23 coast coast NN 40404 2188 24 line line NN 40404 2188 25 which which WDT 40404 2188 26 the the DT 40404 2188 27 state state NN 40404 2188 28 would would MD 40404 2188 29 have have VB 40404 2188 30 if if IN 40404 2188 31 depressed depress VBN 40404 2188 32 one one CD 40404 2188 33 hundred hundred CD 40404 2188 34 feet foot NNS 40404 2188 35 . . . 40404 2189 1 Compare compare VB 40404 2189 2 it -PRON- PRP 40404 2189 3 with with IN 40404 2189 4 the the DT 40404 2189 5 present present JJ 40404 2189 6 coastline coastline NN 40404 2189 7 ] ] -RRB- 40404 2189 8 We -PRON- PRP 40404 2189 9 may may MD 40404 2189 10 say say VB 40404 2189 11 , , , 40404 2189 12 then then RB 40404 2189 13 , , , 40404 2189 14 that that IN 40404 2189 15 on on IN 40404 2189 16 shores shore NNS 40404 2189 17 of of IN 40404 2189 18 elevation elevation NN 40404 2189 19 the the DT 40404 2189 20 presence presence NN 40404 2189 21 of of IN 40404 2189 22 sand sand NN 40404 2189 23 reefs reef NNS 40404 2189 24 and and CC 40404 2189 25 lagoons lagoon NNS 40404 2189 26 indicates indicate VBZ 40404 2189 27 the the DT 40404 2189 28 stage stage NN 40404 2189 29 of of IN 40404 2189 30 youth youth NN 40404 2189 31 , , , 40404 2189 32 while while IN 40404 2189 33 the the DT 40404 2189 34 absence absence NN 40404 2189 35 of of IN 40404 2189 36 these these DT 40404 2189 37 features feature NNS 40404 2189 38 and and CC 40404 2189 39 the the DT 40404 2189 40 vigorous vigorous JJ 40404 2189 41 and and CC 40404 2189 42 unimpeded unimpeded JJ 40404 2189 43 attack attack NN 40404 2189 44 by by IN 40404 2189 45 the the DT 40404 2189 46 sea sea NN 40404 2189 47 upon upon IN 40404 2189 48 the the DT 40404 2189 49 mainland mainland NN 40404 2189 50 indicate indicate VBP 40404 2189 51 the the DT 40404 2189 52 stage stage NN 40404 2189 53 of of IN 40404 2189 54 maturity maturity NN 40404 2189 55 . . . 40404 2190 1 Where where WRB 40404 2190 2 much much JJ 40404 2190 3 waste waste NN 40404 2190 4 is be VBZ 40404 2190 5 brought bring VBN 40404 2190 6 in in RP 40404 2190 7 by by IN 40404 2190 8 rivers river NNS 40404 2190 9 the the DT 40404 2190 10 maturity maturity NN 40404 2190 11 of of IN 40404 2190 12 such such PDT 40404 2190 13 a a DT 40404 2190 14 coast coast NN 40404 2190 15 may may MD 40404 2190 16 be be VB 40404 2190 17 long long RB 40404 2190 18 delayed delay VBN 40404 2190 19 . . . 40404 2191 1 The the DT 40404 2191 2 waste waste NN 40404 2191 3 from from IN 40404 2191 4 the the DT 40404 2191 5 land land NN 40404 2191 6 keeps keep VBZ 40404 2191 7 the the DT 40404 2191 8 sea sea NN 40404 2191 9 shallow shallow VB 40404 2191 10 offshore offshore RB 40404 2191 11 and and CC 40404 2191 12 constantly constantly RB 40404 2191 13 renews renew VBZ 40404 2191 14 the the DT 40404 2191 15 sand sand NN 40404 2191 16 reef reef NN 40404 2191 17 . . . 40404 2192 1 The the DT 40404 2192 2 energy energy NN 40404 2192 3 of of IN 40404 2192 4 the the DT 40404 2192 5 waves wave NNS 40404 2192 6 is be VBZ 40404 2192 7 consumed consume VBN 40404 2192 8 in in IN 40404 2192 9 handling handle VBG 40404 2192 10 shore shore NN 40404 2192 11 drift drift NN 40404 2192 12 , , , 40404 2192 13 and and CC 40404 2192 14 no no DT 40404 2192 15 energy energy NN 40404 2192 16 is be VBZ 40404 2192 17 left leave VBN 40404 2192 18 for for IN 40404 2192 19 an an DT 40404 2192 20 effective effective JJ 40404 2192 21 attack attack NN 40404 2192 22 upon upon IN 40404 2192 23 the the DT 40404 2192 24 land land NN 40404 2192 25 . . . 40404 2193 1 Indeed indeed RB 40404 2193 2 , , , 40404 2193 3 with with IN 40404 2193 4 an an DT 40404 2193 5 excessive excessive JJ 40404 2193 6 amount amount NN 40404 2193 7 of of IN 40404 2193 8 waste waste NN 40404 2193 9 brought bring VBN 40404 2193 10 down down RP 40404 2193 11 by by IN 40404 2193 12 streams stream NNS 40404 2193 13 the the DT 40404 2193 14 land land NN 40404 2193 15 may may MD 40404 2193 16 be be VB 40404 2193 17 built build VBN 40404 2193 18 out out RP 40404 2193 19 and and CC 40404 2193 20 encroach encroach VB 40404 2193 21 temporarily temporarily RB 40404 2193 22 upon upon IN 40404 2193 23 the the DT 40404 2193 24 sea sea NN 40404 2193 25 ; ; : 40404 2193 26 and and CC 40404 2193 27 not not RB 40404 2193 28 until until IN 40404 2193 29 long long JJ 40404 2193 30 denudation denudation NN 40404 2193 31 has have VBZ 40404 2193 32 lowered lower VBN 40404 2193 33 the the DT 40404 2193 34 land land NN 40404 2193 35 , , , 40404 2193 36 and and CC 40404 2193 37 thus thus RB 40404 2193 38 decreased decrease VBD 40404 2193 39 the the DT 40404 2193 40 amount amount NN 40404 2193 41 of of IN 40404 2193 42 waste waste NN 40404 2193 43 from from IN 40404 2193 44 it -PRON- PRP 40404 2193 45 , , , 40404 2193 46 may may MD 40404 2193 47 the the DT 40404 2193 48 waves wave NNS 40404 2193 49 be be VB 40404 2193 50 able able JJ 40404 2193 51 to to TO 40404 2193 52 cut cut VB 40404 2193 53 through through IN 40404 2193 54 the the DT 40404 2193 55 sand sand NN 40404 2193 56 reef reef NN 40404 2193 57 and and CC 40404 2193 58 thus thus RB 40404 2193 59 the the DT 40404 2193 60 coast coast NN 40404 2193 61 reach reach NN 40404 2193 62 maturity maturity NN 40404 2193 63 . . . 40404 2194 1 Shores shore NNS 40404 2194 2 of of IN 40404 2194 3 Depression Depression NNP 40404 2194 4 Where where WRB 40404 2194 5 a a DT 40404 2194 6 coastal coastal JJ 40404 2194 7 region region NN 40404 2194 8 is be VBZ 40404 2194 9 undergoing undergo VBG 40404 2194 10 submergence submergence NN 40404 2194 11 the the DT 40404 2194 12 shore shore NN 40404 2194 13 line line NN 40404 2194 14 moves move VBZ 40404 2194 15 landward landward RB 40404 2194 16 . . . 40404 2195 1 The the DT 40404 2195 2 horizontal horizontal JJ 40404 2195 3 plane plane NN 40404 2195 4 of of IN 40404 2195 5 the the DT 40404 2195 6 sea sea NN 40404 2195 7 now now RB 40404 2195 8 intersects intersect VBZ 40404 2195 9 an an DT 40404 2195 10 old old JJ 40404 2195 11 land land NN 40404 2195 12 surface surface NN 40404 2195 13 roughened roughen VBN 40404 2195 14 by by IN 40404 2195 15 subaërial subaërial JJ 40404 2195 16 denudation denudation NN 40404 2195 17 . . . 40404 2196 1 The the DT 40404 2196 2 shore shore NN 40404 2196 3 line line NN 40404 2196 4 is be VBZ 40404 2196 5 irregular irregular JJ 40404 2196 6 and and CC 40404 2196 7 indented indent VBN 40404 2196 8 in in IN 40404 2196 9 proportion proportion NN 40404 2196 10 to to IN 40404 2196 11 the the DT 40404 2196 12 relief relief NN 40404 2196 13 of of IN 40404 2196 14 the the DT 40404 2196 15 land land NN 40404 2196 16 and and CC 40404 2196 17 the the DT 40404 2196 18 amount amount NN 40404 2196 19 of of IN 40404 2196 20 the the DT 40404 2196 21 submergence submergence NN 40404 2196 22 which which WDT 40404 2196 23 the the DT 40404 2196 24 land land NN 40404 2196 25 has have VBZ 40404 2196 26 suffered suffer VBN 40404 2196 27 . . . 40404 2197 1 It -PRON- PRP 40404 2197 2 follows follow VBZ 40404 2197 3 up up RP 40404 2197 4 partially partially RB 40404 2197 5 submerged submerge VBN 40404 2197 6 valleys valley NNS 40404 2197 7 , , , 40404 2197 8 forming form VBG 40404 2197 9 bays bay NNS 40404 2197 10 , , , 40404 2197 11 and and CC 40404 2197 12 bends bend NNS 40404 2197 13 round round VBP 40404 2197 14 the the DT 40404 2197 15 divides divide NNS 40404 2197 16 , , , 40404 2197 17 leaving leave VBG 40404 2197 18 them -PRON- PRP 40404 2197 19 to to TO 40404 2197 20 project project VB 40404 2197 21 as as IN 40404 2197 22 promontories promontory NNS 40404 2197 23 and and CC 40404 2197 24 peninsulas peninsula NNS 40404 2197 25 . . . 40404 2198 1 The the DT 40404 2198 2 outlines outline NNS 40404 2198 3 of of IN 40404 2198 4 shores shore NNS 40404 2198 5 of of IN 40404 2198 6 depression depression NN 40404 2198 7 are be VBP 40404 2198 8 as as RB 40404 2198 9 varied varied JJ 40404 2198 10 as as IN 40404 2198 11 are be VBP 40404 2198 12 the the DT 40404 2198 13 forms form NNS 40404 2198 14 of of IN 40404 2198 15 the the DT 40404 2198 16 land land NN 40404 2198 17 partially partially RB 40404 2198 18 submerged submerge VBN 40404 2198 19 . . . 40404 2199 1 We -PRON- PRP 40404 2199 2 give give VBP 40404 2199 3 a a DT 40404 2199 4 few few JJ 40404 2199 5 typical typical JJ 40404 2199 6 illustrations illustration NNS 40404 2199 7 . . . 40404 2200 1 [ [ -LRB- 40404 2200 2 Illustration illustration NN 40404 2200 3 : : : 40404 2200 4 Fig Fig NNP 40404 2200 5 . . . 40404 2201 1 146 146 CD 40404 2201 2 . . . 40404 2202 1 Chesapeake Chesapeake NNP 40404 2202 2 Bay Bay NNP 40404 2202 3 Draw Draw NNP 40404 2202 4 a a DT 40404 2202 5 sketch sketch NN 40404 2202 6 of of IN 40404 2202 7 this this DT 40404 2202 8 area area NN 40404 2202 9 before before IN 40404 2202 10 its -PRON- PRP$ 40404 2202 11 depression depression NN 40404 2202 12 ] ] -RRB- 40404 2202 13 The the DT 40404 2202 14 characteristics characteristic NNS 40404 2202 15 of of IN 40404 2202 16 the the DT 40404 2202 17 coast coast NN 40404 2202 18 of of IN 40404 2202 19 Maine Maine NNP 40404 2202 20 are be VBP 40404 2202 21 due due JJ 40404 2202 22 chiefly chiefly RB 40404 2202 23 to to IN 40404 2202 24 the the DT 40404 2202 25 fact fact NN 40404 2202 26 that that IN 40404 2202 27 a a DT 40404 2202 28 mountainous mountainous JJ 40404 2202 29 region region NN 40404 2202 30 of of IN 40404 2202 31 hard hard JJ 40404 2202 32 rocks rock NNS 40404 2202 33 , , , 40404 2202 34 once once RB 40404 2202 35 worn wear VBN 40404 2202 36 to to IN 40404 2202 37 a a DT 40404 2202 38 peneplain peneplain NN 40404 2202 39 , , , 40404 2202 40 and and CC 40404 2202 41 after after IN 40404 2202 42 a a DT 40404 2202 43 subsequent subsequent JJ 40404 2202 44 elevation elevation NN 40404 2202 45 deeply deeply RB 40404 2202 46 dissected dissect VBN 40404 2202 47 by by IN 40404 2202 48 north north NN 40404 2202 49 - - HYPH 40404 2202 50 south south NN 40404 2202 51 valleys valley NNS 40404 2202 52 , , , 40404 2202 53 has have VBZ 40404 2202 54 subsided subside VBN 40404 2202 55 , , , 40404 2202 56 the the DT 40404 2202 57 depression depression NN 40404 2202 58 amounting amount VBG 40404 2202 59 on on IN 40404 2202 60 its -PRON- PRP$ 40404 2202 61 southern southern JJ 40404 2202 62 margin margin NN 40404 2202 63 to to IN 40404 2202 64 as as RB 40404 2202 65 much much JJ 40404 2202 66 as as IN 40404 2202 67 six six CD 40404 2202 68 hundred hundred CD 40404 2202 69 feet foot NNS 40404 2202 70 below below IN 40404 2202 71 sea sea NN 40404 2202 72 level level NN 40404 2202 73 . . . 40404 2203 1 Drowned drown VBN 40404 2203 2 valleys valley NNS 40404 2203 3 penetrate penetrate VBP 40404 2203 4 the the DT 40404 2203 5 land land NN 40404 2203 6 in in IN 40404 2203 7 long long JJ 40404 2203 8 , , , 40404 2203 9 narrow narrow JJ 40404 2203 10 bays bay NNS 40404 2203 11 , , , 40404 2203 12 and and CC 40404 2203 13 rugged rugge VBN 40404 2203 14 divides divide VBZ 40404 2203 15 project project NN 40404 2203 16 in in IN 40404 2203 17 long long JJ 40404 2203 18 , , , 40404 2203 19 narrow narrow JJ 40404 2203 20 land land NN 40404 2203 21 arms arm NNS 40404 2203 22 prolonged prolong VBN 40404 2203 23 seaward seaward NN 40404 2203 24 by by IN 40404 2203 25 islands island NNS 40404 2203 26 representing represent VBG 40404 2203 27 the the DT 40404 2203 28 high high JJ 40404 2203 29 portions portion NNS 40404 2203 30 of of IN 40404 2203 31 their -PRON- PRP$ 40404 2203 32 extremities extremity NNS 40404 2203 33 . . . 40404 2204 1 Of of IN 40404 2204 2 this this DT 40404 2204 3 exceedingly exceedingly RB 40404 2204 4 ragged ragged JJ 40404 2204 5 shore shore NN 40404 2204 6 there there EX 40404 2204 7 are be VBP 40404 2204 8 said say VBN 40404 2204 9 to to TO 40404 2204 10 be be VB 40404 2204 11 two two CD 40404 2204 12 thousand thousand CD 40404 2204 13 miles mile NNS 40404 2204 14 from from IN 40404 2204 15 the the DT 40404 2204 16 New New NNP 40404 2204 17 Brunswick Brunswick NNP 40404 2204 18 boundary boundary JJ 40404 2204 19 as as IN 40404 2204 20 far far RB 40404 2204 21 west west NNP 40404 2204 22 as as IN 40404 2204 23 Portland,--a portland,--a NN 40404 2204 24 straight straight JJ 40404 2204 25 - - HYPH 40404 2204 26 line line NN 40404 2204 27 distance distance NN 40404 2204 28 of of IN 40404 2204 29 but but CC 40404 2204 30 two two CD 40404 2204 31 hundred hundred CD 40404 2204 32 miles mile NNS 40404 2204 33 . . . 40404 2205 1 Since since IN 40404 2205 2 the the DT 40404 2205 3 time time NN 40404 2205 4 of of IN 40404 2205 5 its -PRON- PRP$ 40404 2205 6 greatest great JJS 40404 2205 7 depression depression NN 40404 2205 8 the the DT 40404 2205 9 land land NN 40404 2205 10 is be VBZ 40404 2205 11 known know VBN 40404 2205 12 to to TO 40404 2205 13 have have VB 40404 2205 14 risen rise VBN 40404 2205 15 some some DT 40404 2205 16 three three CD 40404 2205 17 hundred hundred CD 40404 2205 18 feet foot NNS 40404 2205 19 ; ; : 40404 2205 20 for for IN 40404 2205 21 the the DT 40404 2205 22 bays bay NNS 40404 2205 23 have have VBP 40404 2205 24 been be VBN 40404 2205 25 shortened shorten VBN 40404 2205 26 , , , 40404 2205 27 and and CC 40404 2205 28 the the DT 40404 2205 29 waste waste NN 40404 2205 30 with with IN 40404 2205 31 which which WDT 40404 2205 32 their -PRON- PRP$ 40404 2205 33 floors floor NNS 40404 2205 34 were be VBD 40404 2205 35 strewn strew VBN 40404 2205 36 is be VBZ 40404 2205 37 now now RB 40404 2205 38 in in IN 40404 2205 39 part part NN 40404 2205 40 laid lay VBN 40404 2205 41 bare bare JJ 40404 2205 42 as as IN 40404 2205 43 clay clay NN 40404 2205 44 plains plain VBZ 40404 2205 45 about about IN 40404 2205 46 the the DT 40404 2205 47 bay bay NNP 40404 2205 48 heads head NNS 40404 2205 49 and and CC 40404 2205 50 in in IN 40404 2205 51 narrow narrow JJ 40404 2205 52 selvages selvage NNS 40404 2205 53 about about IN 40404 2205 54 the the DT 40404 2205 55 peninsulas peninsula NNS 40404 2205 56 and and CC 40404 2205 57 islands island NNS 40404 2205 58 . . . 40404 2206 1 The the DT 40404 2206 2 coast coast NN 40404 2206 3 of of IN 40404 2206 4 Dalmatia Dalmatia NNP 40404 2206 5 , , , 40404 2206 6 on on IN 40404 2206 7 the the DT 40404 2206 8 Adriatic Adriatic NNP 40404 2206 9 Sea Sea NNP 40404 2206 10 , , , 40404 2206 11 is be VBZ 40404 2206 12 characterized characterize VBN 40404 2206 13 by by IN 40404 2206 14 long long JJ 40404 2206 15 land land NN 40404 2206 16 arms arm NNS 40404 2206 17 and and CC 40404 2206 18 chains chain NNS 40404 2206 19 of of IN 40404 2206 20 long long JJ 40404 2206 21 and and CC 40404 2206 22 narrow narrow JJ 40404 2206 23 islands island NNS 40404 2206 24 , , , 40404 2206 25 all all DT 40404 2206 26 parallel parallel JJ 40404 2206 27 to to IN 40404 2206 28 the the DT 40404 2206 29 trend trend NN 40404 2206 30 of of IN 40404 2206 31 the the DT 40404 2206 32 coast coast NN 40404 2206 33 . . . 40404 2207 1 A a DT 40404 2207 2 region region NN 40404 2207 3 of of IN 40404 2207 4 parallel parallel JJ 40404 2207 5 mountain mountain NN 40404 2207 6 ranges range NNS 40404 2207 7 has have VBZ 40404 2207 8 been be VBN 40404 2207 9 depressed depress VBN 40404 2207 10 , , , 40404 2207 11 and and CC 40404 2207 12 the the DT 40404 2207 13 longitudinal longitudinal JJ 40404 2207 14 valleys valley NNS 40404 2207 15 which which WDT 40404 2207 16 lie lie VBP 40404 2207 17 between between IN 40404 2207 18 them -PRON- PRP 40404 2207 19 are be VBP 40404 2207 20 occupied occupy VBN 40404 2207 21 by by IN 40404 2207 22 arms arm NNS 40404 2207 23 of of IN 40404 2207 24 the the DT 40404 2207 25 sea sea NN 40404 2207 26 . . . 40404 2208 1 Chesapeake Chesapeake NNP 40404 2208 2 Bay Bay NNP 40404 2208 3 is be VBZ 40404 2208 4 a a DT 40404 2208 5 branching branch VBG 40404 2208 6 bay bay NN 40404 2208 7 due due IN 40404 2208 8 to to IN 40404 2208 9 the the DT 40404 2208 10 depression depression NN 40404 2208 11 of of IN 40404 2208 12 an an DT 40404 2208 13 ancient ancient JJ 40404 2208 14 coastal coastal JJ 40404 2208 15 plain plain NN 40404 2208 16 which which WDT 40404 2208 17 , , , 40404 2208 18 after after IN 40404 2208 19 having have VBG 40404 2208 20 emerged emerge VBD 40404 2208 21 from from IN 40404 2208 22 the the DT 40404 2208 23 sea sea NN 40404 2208 24 , , , 40404 2208 25 was be VBD 40404 2208 26 channeled channel VBN 40404 2208 27 with with IN 40404 2208 28 broad broad JJ 40404 2208 29 , , , 40404 2208 30 shallow shallow JJ 40404 2208 31 valleys valley NNS 40404 2208 32 . . . 40404 2209 1 The the DT 40404 2209 2 sea sea NN 40404 2209 3 has have VBZ 40404 2209 4 invaded invade VBN 40404 2209 5 the the DT 40404 2209 6 valley valley NN 40404 2209 7 of of IN 40404 2209 8 the the DT 40404 2209 9 trunk trunk NN 40404 2209 10 stream stream NN 40404 2209 11 and and CC 40404 2209 12 those those DT 40404 2209 13 of of IN 40404 2209 14 its -PRON- PRP$ 40404 2209 15 tributaries tributary NNS 40404 2209 16 , , , 40404 2209 17 forming form VBG 40404 2209 18 a a DT 40404 2209 19 shallow shallow JJ 40404 2209 20 bay bay NN 40404 2209 21 whose whose WP$ 40404 2209 22 many many JJ 40404 2209 23 branches branch NNS 40404 2209 24 are be VBP 40404 2209 25 all all DT 40404 2209 26 directed direct VBN 40404 2209 27 toward toward IN 40404 2209 28 its -PRON- PRP$ 40404 2209 29 axis axis NN 40404 2209 30 ( ( -LRB- 40404 2209 31 Fig fig NN 40404 2209 32 . . . 40404 2210 1 146 146 LS 40404 2210 2 ) ) -RRB- 40404 2210 3 . . . 40404 2211 1 Hudson Hudson NNP 40404 2211 2 Bay Bay NNP 40404 2211 3 , , , 40404 2211 4 and and CC 40404 2211 5 the the DT 40404 2211 6 North North NNP 40404 2211 7 , , , 40404 2211 8 the the DT 40404 2211 9 Baltic Baltic NNP 40404 2211 10 , , , 40404 2211 11 and and CC 40404 2211 12 the the DT 40404 2211 13 Yellow Yellow NNP 40404 2211 14 seas sea NNS 40404 2211 15 are be VBP 40404 2211 16 examples example NNS 40404 2211 17 where where WRB 40404 2211 18 the the DT 40404 2211 19 sinking sinking NN 40404 2211 20 of of IN 40404 2211 21 the the DT 40404 2211 22 land land NN 40404 2211 23 has have VBZ 40404 2211 24 brought bring VBN 40404 2211 25 the the DT 40404 2211 26 sea sea NN 40404 2211 27 in in IN 40404 2211 28 over over IN 40404 2211 29 low low JJ 40404 2211 30 plains plain NNS 40404 2211 31 of of IN 40404 2211 32 large large JJ 40404 2211 33 extent extent NN 40404 2211 34 , , , 40404 2211 35 thus thus RB 40404 2211 36 deeply deeply RB 40404 2211 37 indenting indent VBG 40404 2211 38 the the DT 40404 2211 39 continental continental JJ 40404 2211 40 outline outline NN 40404 2211 41 . . . 40404 2212 1 The the DT 40404 2212 2 rise rise NN 40404 2212 3 of of IN 40404 2212 4 a a DT 40404 2212 5 few few JJ 40404 2212 6 hundred hundred CD 40404 2212 7 feet foot NNS 40404 2212 8 would would MD 40404 2212 9 restore restore VB 40404 2212 10 these these DT 40404 2212 11 submerged submerged JJ 40404 2212 12 plains plain NNS 40404 2212 13 to to IN 40404 2212 14 the the DT 40404 2212 15 land land NN 40404 2212 16 . . . 40404 2213 1 = = NFP 40404 2213 2 The the DT 40404 2213 3 cycle cycle NN 40404 2213 4 of of IN 40404 2213 5 shores shore NNS 40404 2213 6 of of IN 40404 2213 7 depression.= depression.= NNP 40404 2213 8 In in IN 40404 2213 9 its -PRON- PRP$ 40404 2213 10 _ _ NNP 40404 2213 11 infantile infantile JJ 40404 2213 12 stage stage NN 40404 2213 13 _ _ NNP 40404 2213 14 the the DT 40404 2213 15 outline outline NN 40404 2213 16 of of IN 40404 2213 17 a a DT 40404 2213 18 shore shore NN 40404 2213 19 of of IN 40404 2213 20 depression depression NN 40404 2213 21 depends depend VBZ 40404 2213 22 almost almost RB 40404 2213 23 wholly wholly RB 40404 2213 24 on on IN 40404 2213 25 the the DT 40404 2213 26 previous previous JJ 40404 2213 27 relief relief NN 40404 2213 28 of of IN 40404 2213 29 the the DT 40404 2213 30 land land NN 40404 2213 31 , , , 40404 2213 32 and and CC 40404 2213 33 but but CC 40404 2213 34 little little JJ 40404 2213 35 on on IN 40404 2213 36 erosion erosion NN 40404 2213 37 by by IN 40404 2213 38 the the DT 40404 2213 39 sea sea NN 40404 2213 40 . . . 40404 2214 1 Sea sea NN 40404 2214 2 cliffs cliff NNS 40404 2214 3 and and CC 40404 2214 4 narrow narrow JJ 40404 2214 5 benches bench NNS 40404 2214 6 appear appear VBP 40404 2214 7 where where WRB 40404 2214 8 headlands headland NNS 40404 2214 9 and and CC 40404 2214 10 outlying outlying JJ 40404 2214 11 islands island NNS 40404 2214 12 have have VBP 40404 2214 13 been be VBN 40404 2214 14 nipped nip VBN 40404 2214 15 by by IN 40404 2214 16 the the DT 40404 2214 17 waves wave NNS 40404 2214 18 . . . 40404 2215 1 As as IN 40404 2215 2 yet yet RB 40404 2215 3 , , , 40404 2215 4 little little JJ 40404 2215 5 shore shore NN 40404 2215 6 waste waste NN 40404 2215 7 has have VBZ 40404 2215 8 been be VBN 40404 2215 9 formed form VBN 40404 2215 10 . . . 40404 2216 1 The the DT 40404 2216 2 coast coast NN 40404 2216 3 of of IN 40404 2216 4 Maine Maine NNP 40404 2216 5 is be VBZ 40404 2216 6 an an DT 40404 2216 7 example example NN 40404 2216 8 of of IN 40404 2216 9 this this DT 40404 2216 10 stage stage NN 40404 2216 11 . . . 40404 2217 1 In in IN 40404 2217 2 _ _ NNP 40404 2217 3 early early JJ 40404 2217 4 youth youth NN 40404 2217 5 _ _ IN 40404 2217 6 all all DT 40404 2217 7 promontories promontory NNS 40404 2217 8 have have VBP 40404 2217 9 been be VBN 40404 2217 10 strongly strongly RB 40404 2217 11 cliffed cliffe VBN 40404 2217 12 , , , 40404 2217 13 and and CC 40404 2217 14 under under IN 40404 2217 15 a a DT 40404 2217 16 vigorous vigorous JJ 40404 2217 17 attack attack NN 40404 2217 18 of of IN 40404 2217 19 the the DT 40404 2217 20 sea sea NN 40404 2217 21 the the DT 40404 2217 22 shore shore NN 40404 2217 23 of of IN 40404 2217 24 open open JJ 40404 2217 25 bays bay NNS 40404 2217 26 may may MD 40404 2217 27 be be VB 40404 2217 28 cut cut VBN 40404 2217 29 back back RB 40404 2217 30 also also RB 40404 2217 31 . . . 40404 2218 1 Sea sea NN 40404 2218 2 stacks stack NNS 40404 2218 3 and and CC 40404 2218 4 rocky rocky JJ 40404 2218 5 islets islet NNS 40404 2218 6 , , , 40404 2218 7 caves cave NNS 40404 2218 8 and and CC 40404 2218 9 coves cove NNS 40404 2218 10 , , , 40404 2218 11 make make VB 40404 2218 12 the the DT 40404 2218 13 shore shore NN 40404 2218 14 minutely minutely RB 40404 2218 15 ragged ragged JJ 40404 2218 16 . . . 40404 2219 1 The the DT 40404 2219 2 irregularity irregularity NN 40404 2219 3 of of IN 40404 2219 4 the the DT 40404 2219 5 coast coast NN 40404 2219 6 , , , 40404 2219 7 due due IN 40404 2219 8 to to IN 40404 2219 9 depression depression NN 40404 2219 10 , , , 40404 2219 11 is be VBZ 40404 2219 12 for for IN 40404 2219 13 a a DT 40404 2219 14 while while NN 40404 2219 15 increased increase VBN 40404 2219 16 by by IN 40404 2219 17 differential differential NN 40404 2219 18 wave wave NN 40404 2219 19 wear wear VB 40404 2219 20 on on IN 40404 2219 21 harder hard JJR 40404 2219 22 and and CC 40404 2219 23 softer soft JJR 40404 2219 24 rocks rock NNS 40404 2219 25 . . . 40404 2220 1 The the DT 40404 2220 2 rock rock NN 40404 2220 3 bench bench NN 40404 2220 4 is be VBZ 40404 2220 5 still still RB 40404 2220 6 narrow narrow JJ 40404 2220 7 . . . 40404 2221 1 Shore shore NN 40404 2221 2 waste waste NN 40404 2221 3 , , , 40404 2221 4 though though IN 40404 2221 5 being be VBG 40404 2221 6 produced produce VBN 40404 2221 7 in in IN 40404 2221 8 large large JJ 40404 2221 9 amounts amount NNS 40404 2221 10 , , , 40404 2221 11 is be VBZ 40404 2221 12 for for IN 40404 2221 13 the the DT 40404 2221 14 most most JJS 40404 2221 15 part part NN 40404 2221 16 swept sweep VBN 40404 2221 17 into into IN 40404 2221 18 deeper deep JJR 40404 2221 19 water water NN 40404 2221 20 and and CC 40404 2221 21 buried bury VBN 40404 2221 22 out out IN 40404 2221 23 of of IN 40404 2221 24 sight sight NN 40404 2221 25 . . . 40404 2222 1 Examples example NNS 40404 2222 2 of of IN 40404 2222 3 this this DT 40404 2222 4 stage stage NN 40404 2222 5 are be VBP 40404 2222 6 the the DT 40404 2222 7 east east JJ 40404 2222 8 coast coast NN 40404 2222 9 of of IN 40404 2222 10 Scotland Scotland NNP 40404 2222 11 and and CC 40404 2222 12 the the DT 40404 2222 13 California California NNP 40404 2222 14 coast coast NN 40404 2222 15 near near IN 40404 2222 16 San San NNP 40404 2222 17 Francisco Francisco NNP 40404 2222 18 . . . 40404 2223 1 _ _ NNP 40404 2223 2 Later later RBR 40404 2223 3 youth youth NN 40404 2223 4 _ _ NNP 40404 2223 5 is be VBZ 40404 2223 6 characterized characterize VBN 40404 2223 7 by by IN 40404 2223 8 a a DT 40404 2223 9 large large JJ 40404 2223 10 accumulation accumulation NN 40404 2223 11 of of IN 40404 2223 12 shore shore NN 40404 2223 13 waste waste NN 40404 2223 14 . . . 40404 2224 1 The the DT 40404 2224 2 rock rock NN 40404 2224 3 bench bench NN 40404 2224 4 has have VBZ 40404 2224 5 been be VBN 40404 2224 6 cut cut VBN 40404 2224 7 back back RB 40404 2224 8 so so IN 40404 2224 9 that that IN 40404 2224 10 it -PRON- PRP 40404 2224 11 now now RB 40404 2224 12 furnishes furnish VBZ 40404 2224 13 a a DT 40404 2224 14 good good JJ 40404 2224 15 roadway roadway NN 40404 2224 16 for for IN 40404 2224 17 shore shore NN 40404 2224 18 drift drift NN 40404 2224 19 . . . 40404 2225 1 The the DT 40404 2225 2 stream stream NN 40404 2225 3 of of IN 40404 2225 4 alongshore alongshore NN 40404 2225 5 drift drift NN 40404 2225 6 grows grow VBZ 40404 2225 7 larger large JJR 40404 2225 8 and and CC 40404 2225 9 larger large JJR 40404 2225 10 , , , 40404 2225 11 filling fill VBG 40404 2225 12 the the DT 40404 2225 13 heads head NNS 40404 2225 14 of of IN 40404 2225 15 the the DT 40404 2225 16 smaller small JJR 40404 2225 17 bays bay NNS 40404 2225 18 with with IN 40404 2225 19 beaches beach NNS 40404 2225 20 , , , 40404 2225 21 building build VBG 40404 2225 22 spits spit NNS 40404 2225 23 and and CC 40404 2225 24 hooks hook NNS 40404 2225 25 , , , 40404 2225 26 and and CC 40404 2225 27 tying tie VBG 40404 2225 28 islands island NNS 40404 2225 29 with with IN 40404 2225 30 sand sand NN 40404 2225 31 bars bar NNS 40404 2225 32 to to IN 40404 2225 33 the the DT 40404 2225 34 mainland mainland NN 40404 2225 35 . . . 40404 2226 1 It -PRON- PRP 40404 2226 2 bridges bridge VBZ 40404 2226 3 the the DT 40404 2226 4 larger large JJR 40404 2226 5 bays bay NNS 40404 2226 6 with with IN 40404 2226 7 bay bay NN 40404 2226 8 bars bar NNS 40404 2226 9 , , , 40404 2226 10 while while IN 40404 2226 11 their -PRON- PRP$ 40404 2226 12 length length NN 40404 2226 13 is be VBZ 40404 2226 14 being be VBG 40404 2226 15 reduced reduce VBN 40404 2226 16 as as IN 40404 2226 17 their -PRON- PRP$ 40404 2226 18 inclosing inclose VBG 40404 2226 19 promontories promontory NNS 40404 2226 20 are be VBP 40404 2226 21 cut cut VBN 40404 2226 22 back back RB 40404 2226 23 by by IN 40404 2226 24 the the DT 40404 2226 25 waves wave NNS 40404 2226 26 . . . 40404 2227 1 Thus thus RB 40404 2227 2 there there EX 40404 2227 3 comes come VBZ 40404 2227 4 to to TO 40404 2227 5 be be VB 40404 2227 6 a a DT 40404 2227 7 straight straight JJ 40404 2227 8 , , , 40404 2227 9 continuous continuous JJ 40404 2227 10 , , , 40404 2227 11 and and CC 40404 2227 12 easy easy JJ 40404 2227 13 road road NN 40404 2227 14 , , , 40404 2227 15 no no RB 40404 2227 16 longer long RBR 40404 2227 17 interrupted interrupt VBN 40404 2227 18 by by IN 40404 2227 19 headlands headland NNS 40404 2227 20 and and CC 40404 2227 21 bays bay NNS 40404 2227 22 , , , 40404 2227 23 for for IN 40404 2227 24 the the DT 40404 2227 25 transportation transportation NN 40404 2227 26 of of IN 40404 2227 27 waste waste NN 40404 2227 28 alongshore alongshore NN 40404 2227 29 . . . 40404 2228 1 The the DT 40404 2228 2 Baltic baltic JJ 40404 2228 3 coast coast NN 40404 2228 4 of of IN 40404 2228 5 Germany Germany NNP 40404 2228 6 is be VBZ 40404 2228 7 in in IN 40404 2228 8 this this DT 40404 2228 9 stage stage NN 40404 2228 10 . . . 40404 2229 1 [ [ -LRB- 40404 2229 2 Illustration illustration NN 40404 2229 3 : : : 40404 2229 4 Fig Fig NNP 40404 2229 5 . . . 40404 2230 1 147 147 CD 40404 2230 2 . . . 40404 2231 1 Portion portion NN 40404 2231 2 of of IN 40404 2231 3 the the DT 40404 2231 4 Northwest Northwest NNP 40404 2231 5 Coast Coast NNP 40404 2231 6 of of IN 40404 2231 7 France France NNP 40404 2231 8 ] ] -RRB- 40404 2231 9 All all PDT 40404 2231 10 this this DT 40404 2231 11 while while IN 40404 2231 12 streams stream NNS 40404 2231 13 have have VBP 40404 2231 14 been be VBN 40404 2231 15 busy busy JJ 40404 2231 16 filling fill VBG 40404 2231 17 with with IN 40404 2231 18 delta delta NN 40404 2231 19 deposits deposit VBZ 40404 2231 20 the the DT 40404 2231 21 bays bay NNS 40404 2231 22 into into IN 40404 2231 23 which which WDT 40404 2231 24 they -PRON- PRP 40404 2231 25 empty empty VBP 40404 2231 26 . . . 40404 2232 1 By by IN 40404 2232 2 these these DT 40404 2232 3 steps step NNS 40404 2232 4 a a DT 40404 2232 5 coast coast NN 40404 2232 6 gradually gradually RB 40404 2232 7 advances advance VBZ 40404 2232 8 to to IN 40404 2232 9 _ _ NNP 40404 2232 10 maturity maturity NN 40404 2232 11 _ _ NNP 40404 2232 12 , , , 40404 2232 13 the the DT 40404 2232 14 stage stage NN 40404 2232 15 when when WRB 40404 2232 16 the the DT 40404 2232 17 irregularities irregularity NNS 40404 2232 18 due due IN 40404 2232 19 to to IN 40404 2232 20 depression depression NN 40404 2232 21 have have VBP 40404 2232 22 been be VBN 40404 2232 23 effaced efface VBN 40404 2232 24 , , , 40404 2232 25 when when WRB 40404 2232 26 outlying outlying JJ 40404 2232 27 islands island NNS 40404 2232 28 formed form VBN 40404 2232 29 by by IN 40404 2232 30 subsidence subsidence NN 40404 2232 31 have have VBP 40404 2232 32 been be VBN 40404 2232 33 planed plane VBN 40404 2232 34 away away RB 40404 2232 35 , , , 40404 2232 36 and and CC 40404 2232 37 when when WRB 40404 2232 38 the the DT 40404 2232 39 shore shore NN 40404 2232 40 line line NN 40404 2232 41 has have VBZ 40404 2232 42 been be VBN 40404 2232 43 driven drive VBN 40404 2232 44 back back RB 40404 2232 45 behind behind IN 40404 2232 46 the the DT 40404 2232 47 former former JJ 40404 2232 48 bay bay NN 40404 2232 49 heads head NNS 40404 2232 50 . . . 40404 2233 1 The the DT 40404 2233 2 sea sea NN 40404 2233 3 now now RB 40404 2233 4 attacks attack VBZ 40404 2233 5 the the DT 40404 2233 6 land land NN 40404 2233 7 most most RBS 40404 2233 8 effectively effectively RB 40404 2233 9 along along IN 40404 2233 10 a a DT 40404 2233 11 continuous continuous JJ 40404 2233 12 and and CC 40404 2233 13 fairly fairly RB 40404 2233 14 straight straight JJ 40404 2233 15 line line NN 40404 2233 16 of of IN 40404 2233 17 cliffs cliff NNS 40404 2233 18 . . . 40404 2234 1 Although although IN 40404 2234 2 the the DT 40404 2234 3 first first JJ 40404 2234 4 effect effect NN 40404 2234 5 of of IN 40404 2234 6 wave wave NN 40404 2234 7 wear wear NN 40404 2234 8 was be VBD 40404 2234 9 to to TO 40404 2234 10 increase increase VB 40404 2234 11 the the DT 40404 2234 12 irregularities irregularity NNS 40404 2234 13 of of IN 40404 2234 14 the the DT 40404 2234 15 shore shore NN 40404 2234 16 , , , 40404 2234 17 it -PRON- PRP 40404 2234 18 sooner soon RBR 40404 2234 19 or or CC 40404 2234 20 later later RB 40404 2234 21 rectifies rectify VBZ 40404 2234 22 it -PRON- PRP 40404 2234 23 , , , 40404 2234 24 making make VBG 40404 2234 25 it -PRON- PRP 40404 2234 26 simple simple JJ 40404 2234 27 and and CC 40404 2234 28 smooth smooth JJ 40404 2234 29 . . . 40404 2235 1 The the DT 40404 2235 2 northwest northwest JJ 40404 2235 3 coast coast NN 40404 2235 4 of of IN 40404 2235 5 France France NNP 40404 2235 6 is be VBZ 40404 2235 7 often often RB 40404 2235 8 cited cite VBN 40404 2235 9 as as IN 40404 2235 10 an an DT 40404 2235 11 example example NN 40404 2235 12 of of IN 40404 2235 13 a a DT 40404 2235 14 coast coast NN 40404 2235 15 which which WDT 40404 2235 16 has have VBZ 40404 2235 17 reached reach VBN 40404 2235 18 this this DT 40404 2235 19 stage stage NN 40404 2235 20 of of IN 40404 2235 21 development development NN 40404 2235 22 ( ( -LRB- 40404 2235 23 Fig fig NN 40404 2235 24 . . . 40404 2236 1 147 147 CD 40404 2236 2 ) ) -RRB- 40404 2236 3 . . . 40404 2237 1 In in IN 40404 2237 2 the the DT 40404 2237 3 _ _ NNP 40404 2237 4 old old JJ 40404 2237 5 age age NN 40404 2237 6 _ _ NNP 40404 2237 7 of of IN 40404 2237 8 coasts coast NNS 40404 2237 9 the the DT 40404 2237 10 rock rock NN 40404 2237 11 bench bench NN 40404 2237 12 is be VBZ 40404 2237 13 cut cut VBN 40404 2237 14 back back RB 40404 2237 15 so so RB 40404 2237 16 far far RB 40404 2237 17 that that IN 40404 2237 18 the the DT 40404 2237 19 waves wave NNS 40404 2237 20 can can MD 40404 2237 21 no no RB 40404 2237 22 longer longer RB 40404 2237 23 exert exert VB 40404 2237 24 their -PRON- PRP$ 40404 2237 25 full full JJ 40404 2237 26 effect effect NN 40404 2237 27 upon upon IN 40404 2237 28 the the DT 40404 2237 29 shore shore NN 40404 2237 30 . . . 40404 2238 1 Their -PRON- PRP$ 40404 2238 2 energy energy NN 40404 2238 3 is be VBZ 40404 2238 4 dissipated dissipate VBN 40404 2238 5 in in IN 40404 2238 6 moving move VBG 40404 2238 7 shore shore NN 40404 2238 8 drift drift NN 40404 2238 9 hither hither NNP 40404 2238 10 and and CC 40404 2238 11 thither thither NN 40404 2238 12 and and CC 40404 2238 13 in in IN 40404 2238 14 abrading abrade VBG 40404 2238 15 the the DT 40404 2238 16 bench bench NN 40404 2238 17 when when WRB 40404 2238 18 they -PRON- PRP 40404 2238 19 drag drag VBP 40404 2238 20 bottom bottom JJ 40404 2238 21 upon upon IN 40404 2238 22 it -PRON- PRP 40404 2238 23 . . . 40404 2239 1 Little little JJ 40404 2239 2 by by IN 40404 2239 3 little little JJ 40404 2239 4 the the DT 40404 2239 5 bench bench NN 40404 2239 6 is be VBZ 40404 2239 7 deepened deepen VBN 40404 2239 8 by by IN 40404 2239 9 tidal tidal JJ 40404 2239 10 currents current NNS 40404 2239 11 and and CC 40404 2239 12 the the DT 40404 2239 13 drag drag NN 40404 2239 14 of of IN 40404 2239 15 waves wave NNS 40404 2239 16 ; ; : 40404 2239 17 but but CC 40404 2239 18 this this DT 40404 2239 19 process process NN 40404 2239 20 is be VBZ 40404 2239 21 so so RB 40404 2239 22 slow slow JJ 40404 2239 23 that that IN 40404 2239 24 meanwhile meanwhile RB 40404 2239 25 the the DT 40404 2239 26 sea sea NN 40404 2239 27 cliffs cliff NNS 40404 2239 28 melt melt VBP 40404 2239 29 down down RP 40404 2239 30 under under IN 40404 2239 31 the the DT 40404 2239 32 weather weather NN 40404 2239 33 , , , 40404 2239 34 and and CC 40404 2239 35 the the DT 40404 2239 36 bench bench NN 40404 2239 37 becomes become VBZ 40404 2239 38 a a DT 40404 2239 39 broad broad JJ 40404 2239 40 shoal shoal NN 40404 2239 41 where where WRB 40404 2239 42 waves wave NNS 40404 2239 43 and and CC 40404 2239 44 tides tide NNS 40404 2239 45 gradually gradually RB 40404 2239 46 work work VBP 40404 2239 47 over over IN 40404 2239 48 the the DT 40404 2239 49 waste waste NN 40404 2239 50 from from IN 40404 2239 51 the the DT 40404 2239 52 land land NN 40404 2239 53 to to IN 40404 2239 54 greater great JJR 40404 2239 55 fineness fineness NN 40404 2239 56 and and CC 40404 2239 57 sweep sweep VB 40404 2239 58 it -PRON- PRP 40404 2239 59 out out RP 40404 2239 60 to to IN 40404 2239 61 sea sea NN 40404 2239 62 . . . 40404 2240 1 [ [ -LRB- 40404 2240 2 Illustration illustration NN 40404 2240 3 : : : 40404 2240 4 Fig Fig NNP 40404 2240 5 . . . 40404 2241 1 148 148 CD 40404 2241 2 . . . 40404 2242 1 The the DT 40404 2242 2 South South NNP 40404 2242 3 Shore Shore NNP 40404 2242 4 of of IN 40404 2242 5 Martha Martha NNP 40404 2242 6 's 's POS 40404 2242 7 Vineyard Vineyard NNP 40404 2242 8 The the DT 40404 2242 9 land land NN 40404 2242 10 is be VBZ 40404 2242 11 shaded shaded JJ 40404 2242 12 . . . 40404 2243 1 To to IN 40404 2243 2 what what WDT 40404 2243 3 class class NN 40404 2243 4 of of IN 40404 2243 5 coasts coast NNS 40404 2243 6 does do VBZ 40404 2243 7 this this DT 40404 2243 8 belong belong VB 40404 2243 9 ? ? . 40404 2244 1 What what WDT 40404 2244 2 stage stage NN 40404 2244 3 has have VBZ 40404 2244 4 it -PRON- PRP 40404 2244 5 reached reach VBN 40404 2244 6 , , , 40404 2244 7 and and CC 40404 2244 8 by by IN 40404 2244 9 what what WDT 40404 2244 10 process process NN 40404 2244 11 ? ? . 40404 2245 1 What what WDT 40404 2245 2 changes change NNS 40404 2245 3 will will MD 40404 2245 4 take take VB 40404 2245 5 place place NN 40404 2245 6 in in IN 40404 2245 7 the the DT 40404 2245 8 future future NN 40404 2245 9 ? ? . 40404 2245 10 ] ] -RRB- 40404 2246 1 = = NFP 40404 2246 2 Plains Plains NNPS 40404 2246 3 of of IN 40404 2246 4 marine marine JJ 40404 2246 5 abrasion.= abrasion.= CD 40404 2246 6 While while IN 40404 2246 7 subaërial subaërial JJ 40404 2246 8 denudation denudation NN 40404 2246 9 reduces reduce VBZ 40404 2246 10 the the DT 40404 2246 11 land land NN 40404 2246 12 to to IN 40404 2246 13 baselevel baselevel NNP 40404 2246 14 , , , 40404 2246 15 the the DT 40404 2246 16 sea sea NN 40404 2246 17 is be VBZ 40404 2246 18 sawing saw VBG 40404 2246 19 its -PRON- PRP$ 40404 2246 20 edges edge NNS 40404 2246 21 to to IN 40404 2246 22 _ _ NNP 40404 2246 23 wave wave NN 40404 2246 24 base base NN 40404 2246 25 _ _ NNP 40404 2246 26 , , , 40404 2246 27 i.e. i.e. FW 40404 2247 1 the the DT 40404 2247 2 lowest low JJS 40404 2247 3 limit limit NN 40404 2247 4 of of IN 40404 2247 5 the the DT 40404 2247 6 wave wave NN 40404 2247 7 's 's POS 40404 2247 8 effective effective JJ 40404 2247 9 wear wear NN 40404 2247 10 . . . 40404 2248 1 The the DT 40404 2248 2 widened widened JJ 40404 2248 3 rock rock NN 40404 2248 4 bench bench NN 40404 2248 5 forms form NNS 40404 2248 6 when when WRB 40404 2248 7 uplifted uplift VBD 40404 2248 8 a a DT 40404 2248 9 plain plain NN 40404 2248 10 of of IN 40404 2248 11 marine marine JJ 40404 2248 12 abrasion abrasion NN 40404 2248 13 , , , 40404 2248 14 which which WDT 40404 2248 15 like like IN 40404 2248 16 the the DT 40404 2248 17 peneplain peneplain NN 40404 2248 18 bevels bevel NNS 40404 2248 19 across across IN 40404 2248 20 strata strata NN 40404 2248 21 regardless regardless RB 40404 2248 22 of of IN 40404 2248 23 their -PRON- PRP$ 40404 2248 24 various various JJ 40404 2248 25 inclinations inclination NNS 40404 2248 26 and and CC 40404 2248 27 various various JJ 40404 2248 28 degrees degree NNS 40404 2248 29 of of IN 40404 2248 30 hardness hardness NN 40404 2248 31 . . . 40404 2249 1 How how WRB 40404 2249 2 may may MD 40404 2249 3 a a DT 40404 2249 4 plain plain NN 40404 2249 5 of of IN 40404 2249 6 marine marine JJ 40404 2249 7 abrasion abrasion NN 40404 2249 8 be be VB 40404 2249 9 expected expect VBN 40404 2249 10 to to TO 40404 2249 11 differ differ VB 40404 2249 12 from from IN 40404 2249 13 a a DT 40404 2249 14 peneplain peneplain NN 40404 2249 15 in in IN 40404 2249 16 its -PRON- PRP$ 40404 2249 17 mantle mantle NN 40404 2249 18 of of IN 40404 2249 19 waste waste NN 40404 2249 20 ? ? . 40404 2250 1 Compared compare VBN 40404 2250 2 with with IN 40404 2250 3 subaërial subaërial JJ 40404 2250 4 denudation denudation NN 40404 2250 5 , , , 40404 2250 6 marine marine JJ 40404 2250 7 abrasion abrasion NN 40404 2250 8 is be VBZ 40404 2250 9 a a DT 40404 2250 10 comparatively comparatively RB 40404 2250 11 feeble feeble JJ 40404 2250 12 agent agent NN 40404 2250 13 . . . 40404 2251 1 At at IN 40404 2251 2 the the DT 40404 2251 3 rate rate NN 40404 2251 4 of of IN 40404 2251 5 five five CD 40404 2251 6 feet foot NNS 40404 2251 7 per per IN 40404 2251 8 century century NN 40404 2251 9 -- -- : 40404 2251 10 a a DT 40404 2251 11 higher high JJR 40404 2251 12 rate rate NN 40404 2251 13 than than IN 40404 2251 14 obtains obtain NNS 40404 2251 15 on on IN 40404 2251 16 the the DT 40404 2251 17 youthful youthful JJ 40404 2251 18 rocky rocky NN 40404 2251 19 , , , 40404 2251 20 coast coast NN 40404 2251 21 of of IN 40404 2251 22 Britain Britain NNP 40404 2251 23 -- -- : 40404 2251 24 it -PRON- PRP 40404 2251 25 would would MD 40404 2251 26 require require VB 40404 2251 27 more more JJR 40404 2251 28 than than IN 40404 2251 29 ten ten CD 40404 2251 30 million million CD 40404 2251 31 years year NNS 40404 2251 32 to to TO 40404 2251 33 pare pare VB 40404 2251 34 a a DT 40404 2251 35 strip strip NN 40404 2251 36 one one CD 40404 2251 37 hundred hundred CD 40404 2251 38 miles mile NNS 40404 2251 39 wide wide JJ 40404 2251 40 from from IN 40404 2251 41 the the DT 40404 2251 42 margin margin NN 40404 2251 43 of of IN 40404 2251 44 a a DT 40404 2251 45 continent continent NN 40404 2251 46 , , , 40404 2251 47 a a DT 40404 2251 48 time time NN 40404 2251 49 sufficient sufficient JJ 40404 2251 50 , , , 40404 2251 51 at at IN 40404 2251 52 the the DT 40404 2251 53 rate rate NN 40404 2251 54 at at IN 40404 2251 55 which which WDT 40404 2251 56 the the DT 40404 2251 57 Mississippi Mississippi NNP 40404 2251 58 valley valley NN 40404 2251 59 is be VBZ 40404 2251 60 now now RB 40404 2251 61 being be VBG 40404 2251 62 worn wear VBN 40404 2251 63 away away RP 40404 2251 64 , , , 40404 2251 65 for for IN 40404 2251 66 subaërial subaërial JJ 40404 2251 67 denudation denudation NN 40404 2251 68 to to TO 40404 2251 69 lower lower VB 40404 2251 70 the the DT 40404 2251 71 lands land NNS 40404 2251 72 of of IN 40404 2251 73 the the DT 40404 2251 74 globe globe NN 40404 2251 75 to to IN 40404 2251 76 the the DT 40404 2251 77 level level NN 40404 2251 78 of of IN 40404 2251 79 the the DT 40404 2251 80 sea sea NN 40404 2251 81 . . . 40404 2252 1 Slow slow JJ 40404 2252 2 submergence submergence NN 40404 2252 3 favors favor VBZ 40404 2252 4 the the DT 40404 2252 5 cutting cutting NN 40404 2252 6 of of IN 40404 2252 7 a a DT 40404 2252 8 wide wide JJ 40404 2252 9 rock rock NN 40404 2252 10 bench bench NN 40404 2252 11 . . . 40404 2253 1 The the DT 40404 2253 2 water water NN 40404 2253 3 continually continually RB 40404 2253 4 deepens deepen VBZ 40404 2253 5 upon upon IN 40404 2253 6 the the DT 40404 2253 7 bench bench NN 40404 2253 8 ; ; : 40404 2253 9 storm storm NN 40404 2253 10 waves wave NNS 40404 2253 11 can can MD 40404 2253 12 therefore therefore RB 40404 2253 13 always always RB 40404 2253 14 ride ride VB 40404 2253 15 in in IN 40404 2253 16 to to IN 40404 2253 17 the the DT 40404 2253 18 base base NN 40404 2253 19 of of IN 40404 2253 20 the the DT 40404 2253 21 cliffs cliff NNS 40404 2253 22 and and CC 40404 2253 23 attack attack VB 40404 2253 24 them -PRON- PRP 40404 2253 25 with with IN 40404 2253 26 full full JJ 40404 2253 27 force force NN 40404 2253 28 ; ; : 40404 2253 29 shore shore NN 40404 2253 30 waste waste NN 40404 2253 31 can can MD 40404 2253 32 not not RB 40404 2253 33 impede impede VB 40404 2253 34 the the DT 40404 2253 35 onset onset NN 40404 2253 36 of of IN 40404 2253 37 the the DT 40404 2253 38 waves wave NNS 40404 2253 39 , , , 40404 2253 40 for for IN 40404 2253 41 it -PRON- PRP 40404 2253 42 is be VBZ 40404 2253 43 continually continually RB 40404 2253 44 washed wash VBN 40404 2253 45 out out RP 40404 2253 46 in in IN 40404 2253 47 deeper deep JJR 40404 2253 48 water water NN 40404 2253 49 below below IN 40404 2253 50 wave wave NN 40404 2253 51 base base NN 40404 2253 52 . . . 40404 2254 1 = = NFP 40404 2254 2 Basal Basal NNP 40404 2254 3 conglomerates.= conglomerates.= CD 40404 2254 4 As as IN 40404 2254 5 the the DT 40404 2254 6 sea sea NN 40404 2254 7 marches march VBZ 40404 2254 8 across across IN 40404 2254 9 the the DT 40404 2254 10 land land NN 40404 2254 11 during during IN 40404 2254 12 a a DT 40404 2254 13 slow slow JJ 40404 2254 14 submergence submergence NN 40404 2254 15 , , , 40404 2254 16 the the DT 40404 2254 17 platform platform NN 40404 2254 18 is be VBZ 40404 2254 19 covered cover VBN 40404 2254 20 with with IN 40404 2254 21 sheets sheet NNS 40404 2254 22 of of IN 40404 2254 23 sea sea NN 40404 2254 24 - - HYPH 40404 2254 25 laid lay VBN 40404 2254 26 sediments sediment NNS 40404 2254 27 . . . 40404 2255 1 Lowest low JJS 40404 2255 2 of of IN 40404 2255 3 these these DT 40404 2255 4 is be VBZ 40404 2255 5 a a DT 40404 2255 6 conglomerate,--the conglomerate,--the NN 40404 2255 7 bowlder bowlder NN 40404 2255 8 and and CC 40404 2255 9 pebble pebble JJ 40404 2255 10 beach beach NN 40404 2255 11 , , , 40404 2255 12 widened widen VBD 40404 2255 13 indefinitely indefinitely RB 40404 2255 14 by by IN 40404 2255 15 the the DT 40404 2255 16 retreat retreat NN 40404 2255 17 of of IN 40404 2255 18 the the DT 40404 2255 19 cliffs cliff NNS 40404 2255 20 at at IN 40404 2255 21 whose whose WP$ 40404 2255 22 base base NN 40404 2255 23 it -PRON- PRP 40404 2255 24 was be VBD 40404 2255 25 formed form VBN 40404 2255 26 , , , 40404 2255 27 and and CC 40404 2255 28 preserved preserve VBN 40404 2255 29 by by IN 40404 2255 30 the the DT 40404 2255 31 finer finer NN 40404 2255 32 deposits deposit NNS 40404 2255 33 laid lay VBN 40404 2255 34 upon upon IN 40404 2255 35 it -PRON- PRP 40404 2255 36 in in IN 40404 2255 37 the the DT 40404 2255 38 constantly constantly RB 40404 2255 39 deepening deepen VBG 40404 2255 40 water water NN 40404 2255 41 as as IN 40404 2255 42 the the DT 40404 2255 43 land land NN 40404 2255 44 subsides subside NNS 40404 2255 45 . . . 40404 2256 1 Such such JJ 40404 2256 2 basal basal NN 40404 2256 3 conglomerates conglomerate NNS 40404 2256 4 are be VBP 40404 2256 5 not not RB 40404 2256 6 uncommon uncommon JJ 40404 2256 7 among among IN 40404 2256 8 the the DT 40404 2256 9 ancient ancient JJ 40404 2256 10 rocks rock NNS 40404 2256 11 of of IN 40404 2256 12 the the DT 40404 2256 13 land land NN 40404 2256 14 , , , 40404 2256 15 and and CC 40404 2256 16 we -PRON- PRP 40404 2256 17 may may MD 40404 2256 18 know know VB 40404 2256 19 them -PRON- PRP 40404 2256 20 by by IN 40404 2256 21 their -PRON- PRP$ 40404 2256 22 rounded round VBN 40404 2256 23 pebbles pebble NNS 40404 2256 24 and and CC 40404 2256 25 larger large JJR 40404 2256 26 stones stone NNS 40404 2256 27 , , , 40404 2256 28 composed compose VBN 40404 2256 29 of of IN 40404 2256 30 the the DT 40404 2256 31 same same JJ 40404 2256 32 kind kind NN 40404 2256 33 of of IN 40404 2256 34 rock rock NN 40404 2256 35 as as IN 40404 2256 36 that that DT 40404 2256 37 of of IN 40404 2256 38 the the DT 40404 2256 39 abraded abrade VBN 40404 2256 40 and and CC 40404 2256 41 evened even VBD 40404 2256 42 surface surface NN 40404 2256 43 on on IN 40404 2256 44 which which WDT 40404 2256 45 they -PRON- PRP 40404 2256 46 lie lie VBP 40404 2256 47 . . . 40404 2257 1 CHAPTER chapter NN 40404 2257 2 VIII viii VBP 40404 2257 3 OFFSHORE offshore RB 40404 2257 4 AND and CC 40404 2257 5 DEEP deep JJ 40404 2257 6 - - HYPH 40404 2257 7 SEA SEA NNP 40404 2257 8 DEPOSITS deposit NNS 40404 2257 9 The the DT 40404 2257 10 alongshore alongshore NN 40404 2257 11 deposits deposit NNS 40404 2257 12 which which WDT 40404 2257 13 we -PRON- PRP 40404 2257 14 have have VBP 40404 2257 15 now now RB 40404 2257 16 studied study VBN 40404 2257 17 are be VBP 40404 2257 18 the the DT 40404 2257 19 exposed exposed JJ 40404 2257 20 edge edge NN 40404 2257 21 of of IN 40404 2257 22 a a DT 40404 2257 23 vast vast JJ 40404 2257 24 subaqueous subaqueous JJ 40404 2257 25 sheet sheet NN 40404 2257 26 of of IN 40404 2257 27 waste waste NN 40404 2257 28 which which WDT 40404 2257 29 borders border VBZ 40404 2257 30 the the DT 40404 2257 31 continents continent NNS 40404 2257 32 and and CC 40404 2257 33 extends extend VBZ 40404 2257 34 often often RB 40404 2257 35 for for IN 40404 2257 36 as as RB 40404 2257 37 much much JJ 40404 2257 38 as as IN 40404 2257 39 two two CD 40404 2257 40 or or CC 40404 2257 41 three three CD 40404 2257 42 hundred hundred CD 40404 2257 43 miles mile NNS 40404 2257 44 from from IN 40404 2257 45 land land NN 40404 2257 46 . . . 40404 2258 1 Soundings sounding NNS 40404 2258 2 show show VBP 40404 2258 3 that that IN 40404 2258 4 offshore offshore JJ 40404 2258 5 deposits deposit NNS 40404 2258 6 are be VBP 40404 2258 7 laid lay VBN 40404 2258 8 in in IN 40404 2258 9 belts belt NNS 40404 2258 10 parallel parallel JJ 40404 2258 11 to to IN 40404 2258 12 the the DT 40404 2258 13 coast coast NN 40404 2258 14 , , , 40404 2258 15 the the DT 40404 2258 16 coarsest coarse JJS 40404 2258 17 materials material NNS 40404 2258 18 lying lie VBG 40404 2258 19 nearest nearest RB 40404 2258 20 to to IN 40404 2258 21 the the DT 40404 2258 22 land land NN 40404 2258 23 and and CC 40404 2258 24 the the DT 40404 2258 25 finest fine JJS 40404 2258 26 farthest farthest NN 40404 2258 27 out out RP 40404 2258 28 . . . 40404 2259 1 The the DT 40404 2259 2 pebbles pebble NNS 40404 2259 3 and and CC 40404 2259 4 gravel gravel NN 40404 2259 5 and and CC 40404 2259 6 the the DT 40404 2259 7 clean clean JJ 40404 2259 8 , , , 40404 2259 9 coarse coarse JJ 40404 2259 10 sand sand NN 40404 2259 11 of of IN 40404 2259 12 beaches beach NNS 40404 2259 13 give give VBP 40404 2259 14 place place NN 40404 2259 15 to to IN 40404 2259 16 broad broad JJ 40404 2259 17 stretches stretch NNS 40404 2259 18 of of IN 40404 2259 19 sand sand NN 40404 2259 20 , , , 40404 2259 21 which which WDT 40404 2259 22 grows grow VBZ 40404 2259 23 finer fine JJR 40404 2259 24 and and CC 40404 2259 25 finer fine JJR 40404 2259 26 until until IN 40404 2259 27 it -PRON- PRP 40404 2259 28 is be VBZ 40404 2259 29 succeeded succeed VBN 40404 2259 30 by by IN 40404 2259 31 sheets sheet NNS 40404 2259 32 of of IN 40404 2259 33 mud mud NN 40404 2259 34 . . . 40404 2260 1 Clearly clearly RB 40404 2260 2 there there EX 40404 2260 3 is be VBZ 40404 2260 4 an an DT 40404 2260 5 offshore offshore JJ 40404 2260 6 movement movement NN 40404 2260 7 of of IN 40404 2260 8 waste waste NN 40404 2260 9 by by IN 40404 2260 10 which which WDT 40404 2260 11 it -PRON- PRP 40404 2260 12 is be VBZ 40404 2260 13 sorted sort VBN 40404 2260 14 , , , 40404 2260 15 the the DT 40404 2260 16 coarser coarser NN 40404 2260 17 being be VBG 40404 2260 18 sooner soon RBR 40404 2260 19 dropped drop VBN 40404 2260 20 and and CC 40404 2260 21 the the DT 40404 2260 22 finer fine JJR 40404 2260 23 being be VBG 40404 2260 24 carried carry VBN 40404 2260 25 farther farther RB 40404 2260 26 out out RB 40404 2260 27 . . . 40404 2261 1 Offshore offshore JJ 40404 2261 2 Deposits deposit NNS 40404 2261 3 The the DT 40404 2261 4 debris debris NN 40404 2261 5 torn tear VBN 40404 2261 6 by by IN 40404 2261 7 waves wave NNS 40404 2261 8 from from IN 40404 2261 9 rocky rocky JJ 40404 2261 10 shores shore NNS 40404 2261 11 is be VBZ 40404 2261 12 far far RB 40404 2261 13 less less JJR 40404 2261 14 in in IN 40404 2261 15 amount amount NN 40404 2261 16 than than IN 40404 2261 17 the the DT 40404 2261 18 waste waste NN 40404 2261 19 of of IN 40404 2261 20 the the DT 40404 2261 21 land land NN 40404 2261 22 brought bring VBD 40404 2261 23 down down RP 40404 2261 24 to to IN 40404 2261 25 the the DT 40404 2261 26 sea sea NN 40404 2261 27 by by IN 40404 2261 28 rivers river NNS 40404 2261 29 , , , 40404 2261 30 being be VBG 40404 2261 31 only only RB 40404 2261 32 one one CD 40404 2261 33 thirty thirty CD 40404 2261 34 - - HYPH 40404 2261 35 third third NN 40404 2261 36 as as IN 40404 2261 37 great great JJ 40404 2261 38 , , , 40404 2261 39 according accord VBG 40404 2261 40 to to IN 40404 2261 41 a a DT 40404 2261 42 conservative conservative JJ 40404 2261 43 estimate estimate NN 40404 2261 44 . . . 40404 2262 1 Both both DT 40404 2262 2 mingle mingle JJ 40404 2262 3 alongshore alongshore NN 40404 2262 4 in in IN 40404 2262 5 all all PDT 40404 2262 6 the the DT 40404 2262 7 forms form NNS 40404 2262 8 of of IN 40404 2262 9 beach beach NN 40404 2262 10 and and CC 40404 2262 11 bar bar NN 40404 2262 12 that that WDT 40404 2262 13 have have VBP 40404 2262 14 been be VBN 40404 2262 15 described describe VBN 40404 2262 16 , , , 40404 2262 17 and and CC 40404 2262 18 both both DT 40404 2262 19 are be VBP 40404 2262 20 together together RB 40404 2262 21 slowly slowly RB 40404 2262 22 carried carry VBN 40404 2262 23 out out RP 40404 2262 24 to to IN 40404 2262 25 sea sea NN 40404 2262 26 . . . 40404 2263 1 On on IN 40404 2263 2 the the DT 40404 2263 3 shelving shelve VBG 40404 2263 4 ocean ocean NN 40404 2263 5 floor floor NN 40404 2263 6 waste waste NN 40404 2263 7 is be VBZ 40404 2263 8 agitated agitate VBN 40404 2263 9 by by IN 40404 2263 10 various various JJ 40404 2263 11 movements movement NNS 40404 2263 12 of of IN 40404 2263 13 the the DT 40404 2263 14 unquiet unquiet JJ 40404 2263 15 water,--by water,--by NN 40404 2263 16 the the DT 40404 2263 17 undertow undertow NN 40404 2263 18 ( ( -LRB- 40404 2263 19 an an DT 40404 2263 20 outward outward JJ 40404 2263 21 - - HYPH 40404 2263 22 running run VBG 40404 2263 23 bottom bottom JJ 40404 2263 24 current current NN 40404 2263 25 near near IN 40404 2263 26 the the DT 40404 2263 27 shore shore NN 40404 2263 28 ) ) -RRB- 40404 2263 29 , , , 40404 2263 30 by by IN 40404 2263 31 the the DT 40404 2263 32 ebb ebb NN 40404 2263 33 and and CC 40404 2263 34 flow flow NN 40404 2263 35 of of IN 40404 2263 36 tides tide NNS 40404 2263 37 , , , 40404 2263 38 by by IN 40404 2263 39 ocean ocean NN 40404 2263 40 currents current NNS 40404 2263 41 where where WRB 40404 2263 42 they -PRON- PRP 40404 2263 43 approach approach VBP 40404 2263 44 the the DT 40404 2263 45 land land NN 40404 2263 46 , , , 40404 2263 47 and and CC 40404 2263 48 by by IN 40404 2263 49 waves wave NNS 40404 2263 50 and and CC 40404 2263 51 ground ground NN 40404 2263 52 swells swell NNS 40404 2263 53 , , , 40404 2263 54 whose whose WP$ 40404 2263 55 effects effect NNS 40404 2263 56 are be VBP 40404 2263 57 sometimes sometimes RB 40404 2263 58 felt feel VBN 40404 2263 59 to to IN 40404 2263 60 a a DT 40404 2263 61 depth depth NN 40404 2263 62 of of IN 40404 2263 63 six six CD 40404 2263 64 hundred hundred CD 40404 2263 65 feet foot NNS 40404 2263 66 . . . 40404 2264 1 By by IN 40404 2264 2 all all PDT 40404 2264 3 these these DT 40404 2264 4 means mean VBZ 40404 2264 5 the the DT 40404 2264 6 waste waste NN 40404 2264 7 is be VBZ 40404 2264 8 slowly slowly RB 40404 2264 9 washed wash VBN 40404 2264 10 to to IN 40404 2264 11 and and CC 40404 2264 12 fro fro NNP 40404 2264 13 , , , 40404 2264 14 and and CC 40404 2264 15 as as IN 40404 2264 16 it -PRON- PRP 40404 2264 17 is be VBZ 40404 2264 18 thus thus RB 40404 2264 19 ground grind VBN 40404 2264 20 finer fine JJR 40404 2264 21 and and CC 40404 2264 22 finer fine JJR 40404 2264 23 and and CC 40404 2264 24 its -PRON- PRP$ 40404 2264 25 soluble soluble JJ 40404 2264 26 parts part NNS 40404 2264 27 are be VBP 40404 2264 28 more more RBR 40404 2264 29 and and CC 40404 2264 30 more more RBR 40404 2264 31 dissolved dissolve VBN 40404 2264 32 , , , 40404 2264 33 it -PRON- PRP 40404 2264 34 drifts drift VBZ 40404 2264 35 farther farther RB 40404 2264 36 and and CC 40404 2264 37 farther farther RB 40404 2264 38 out out RB 40404 2264 39 from from IN 40404 2264 40 land land NN 40404 2264 41 . . . 40404 2265 1 It -PRON- PRP 40404 2265 2 is be VBZ 40404 2265 3 by by IN 40404 2265 4 no no RB 40404 2265 5 steady steady JJ 40404 2265 6 and and CC 40404 2265 7 rapid rapid JJ 40404 2265 8 movement movement NN 40404 2265 9 that that DT 40404 2265 10 waste waste NN 40404 2265 11 is be VBZ 40404 2265 12 swept sweep VBN 40404 2265 13 from from IN 40404 2265 14 the the DT 40404 2265 15 shore shore NN 40404 2265 16 to to IN 40404 2265 17 its -PRON- PRP$ 40404 2265 18 final final JJ 40404 2265 19 resting resting NN 40404 2265 20 place place NN 40404 2265 21 . . . 40404 2266 1 Day day NN 40404 2266 2 after after IN 40404 2266 3 day day NN 40404 2266 4 and and CC 40404 2266 5 century century NN 40404 2266 6 after after IN 40404 2266 7 century century NN 40404 2266 8 the the DT 40404 2266 9 grains grain NNS 40404 2266 10 of of IN 40404 2266 11 sand sand NN 40404 2266 12 and and CC 40404 2266 13 particles particle NNS 40404 2266 14 of of IN 40404 2266 15 mud mud NN 40404 2266 16 are be VBP 40404 2266 17 shifted shift VBN 40404 2266 18 to to IN 40404 2266 19 and and CC 40404 2266 20 fro fro NNP 40404 2266 21 , , , 40404 2266 22 winnowed winnow VBD 40404 2266 23 and and CC 40404 2266 24 spread spread VBN 40404 2266 25 in in IN 40404 2266 26 layers layer NNS 40404 2266 27 , , , 40404 2266 28 which which WDT 40404 2266 29 are be VBP 40404 2266 30 destroyed destroy VBN 40404 2266 31 and and CC 40404 2266 32 rebuilt rebuild VBN 40404 2266 33 again again RB 40404 2266 34 and and CC 40404 2266 35 again again RB 40404 2266 36 before before IN 40404 2266 37 they -PRON- PRP 40404 2266 38 are be VBP 40404 2266 39 buried bury VBN 40404 2266 40 safe safe JJ 40404 2266 41 from from IN 40404 2266 42 further further JJ 40404 2266 43 disturbance disturbance NN 40404 2266 44 . . . 40404 2267 1 These these DT 40404 2267 2 processes process NNS 40404 2267 3 which which WDT 40404 2267 4 are be VBP 40404 2267 5 hidden hide VBN 40404 2267 6 from from IN 40404 2267 7 the the DT 40404 2267 8 eye eye NN 40404 2267 9 are be VBP 40404 2267 10 among among IN 40404 2267 11 the the DT 40404 2267 12 most most RBS 40404 2267 13 important important JJ 40404 2267 14 of of IN 40404 2267 15 those those DT 40404 2267 16 with with IN 40404 2267 17 which which WDT 40404 2267 18 our -PRON- PRP$ 40404 2267 19 science science NN 40404 2267 20 has have VBZ 40404 2267 21 to to TO 40404 2267 22 do do VB 40404 2267 23 ; ; : 40404 2267 24 for for IN 40404 2267 25 it -PRON- PRP 40404 2267 26 is be VBZ 40404 2267 27 they -PRON- PRP 40404 2267 28 which which WDT 40404 2267 29 have have VBP 40404 2267 30 given give VBN 40404 2267 31 shape shape NN 40404 2267 32 to to IN 40404 2267 33 by by IN 40404 2267 34 far far RB 40404 2267 35 the the DT 40404 2267 36 largest large JJS 40404 2267 37 part part NN 40404 2267 38 of of IN 40404 2267 39 the the DT 40404 2267 40 stratified stratified JJ 40404 2267 41 rocks rock NNS 40404 2267 42 of of IN 40404 2267 43 which which WDT 40404 2267 44 the the DT 40404 2267 45 land land NN 40404 2267 46 is be VBZ 40404 2267 47 made make VBN 40404 2267 48 . . . 40404 2268 1 = = NFP 40404 2268 2 The the DT 40404 2268 3 continental continental JJ 40404 2268 4 delta.= delta.= VBN 40404 2268 5 This this DT 40404 2268 6 fitting fitting JJ 40404 2268 7 term term NN 40404 2268 8 has have VBZ 40404 2268 9 been be VBN 40404 2268 10 recently recently RB 40404 2268 11 suggested suggest VBN 40404 2268 12 for for IN 40404 2268 13 the the DT 40404 2268 14 sheet sheet NN 40404 2268 15 of of IN 40404 2268 16 waste waste NN 40404 2268 17 slowly slowly RB 40404 2268 18 accumulating accumulate VBG 40404 2268 19 along along IN 40404 2268 20 the the DT 40404 2268 21 borders border NNS 40404 2268 22 of of IN 40404 2268 23 the the DT 40404 2268 24 continents continent NNS 40404 2268 25 . . . 40404 2269 1 Within within IN 40404 2269 2 a a DT 40404 2269 3 narrow narrow JJ 40404 2269 4 belt belt NN 40404 2269 5 , , , 40404 2269 6 which which WDT 40404 2269 7 rarely rarely RB 40404 2269 8 exceeds exceed VBZ 40404 2269 9 two two CD 40404 2269 10 or or CC 40404 2269 11 three three CD 40404 2269 12 hundred hundred CD 40404 2269 13 miles mile NNS 40404 2269 14 , , , 40404 2269 15 except except IN 40404 2269 16 near near IN 40404 2269 17 the the DT 40404 2269 18 mouths mouth NNS 40404 2269 19 of of IN 40404 2269 20 muddy muddy JJ 40404 2269 21 rivers river NNS 40404 2269 22 such such JJ 40404 2269 23 as as IN 40404 2269 24 the the DT 40404 2269 25 Amazon Amazon NNP 40404 2269 26 and and CC 40404 2269 27 Congo Congo NNP 40404 2269 28 , , , 40404 2269 29 nearly nearly RB 40404 2269 30 all all PDT 40404 2269 31 the the DT 40404 2269 32 waste waste NN 40404 2269 33 of of IN 40404 2269 34 the the DT 40404 2269 35 continent continent NN 40404 2269 36 , , , 40404 2269 37 whether whether IN 40404 2269 38 worn wear VBN 40404 2269 39 from from IN 40404 2269 40 its -PRON- PRP$ 40404 2269 41 surface surface NN 40404 2269 42 by by IN 40404 2269 43 the the DT 40404 2269 44 weather weather NN 40404 2269 45 , , , 40404 2269 46 by by IN 40404 2269 47 streams stream NNS 40404 2269 48 , , , 40404 2269 49 by by IN 40404 2269 50 glaciers glacier NNS 40404 2269 51 , , , 40404 2269 52 or or CC 40404 2269 53 by by IN 40404 2269 54 the the DT 40404 2269 55 wind wind NN 40404 2269 56 , , , 40404 2269 57 or or CC 40404 2269 58 from from IN 40404 2269 59 its -PRON- PRP$ 40404 2269 60 edge edge NN 40404 2269 61 by by IN 40404 2269 62 the the DT 40404 2269 63 chafing chafing NN 40404 2269 64 of of IN 40404 2269 65 the the DT 40404 2269 66 waves wave NNS 40404 2269 67 , , , 40404 2269 68 comes come VBZ 40404 2269 69 at at IN 40404 2269 70 last last RB 40404 2269 71 to to IN 40404 2269 72 its -PRON- PRP$ 40404 2269 73 final final JJ 40404 2269 74 resting resting NN 40404 2269 75 place place NN 40404 2269 76 . . . 40404 2270 1 The the DT 40404 2270 2 agencies agency NNS 40404 2270 3 which which WDT 40404 2270 4 spread spread VBD 40404 2270 5 the the DT 40404 2270 6 material material NN 40404 2270 7 of of IN 40404 2270 8 the the DT 40404 2270 9 continental continental NNP 40404 2270 10 delta delta NNP 40404 2270 11 grow grow VBP 40404 2270 12 more more RBR 40404 2270 13 and and CC 40404 2270 14 more more RBR 40404 2270 15 feeble feeble JJ 40404 2270 16 as as IN 40404 2270 17 they -PRON- PRP 40404 2270 18 pass pass VBP 40404 2270 19 into into IN 40404 2270 20 deeper deep JJR 40404 2270 21 and and CC 40404 2270 22 more more RBR 40404 2270 23 quiet quiet JJ 40404 2270 24 water water NN 40404 2270 25 away away RB 40404 2270 26 from from IN 40404 2270 27 shore shore NN 40404 2270 28 . . . 40404 2271 1 Coarse coarse JJ 40404 2271 2 materials material NNS 40404 2271 3 are be VBP 40404 2271 4 therefore therefore RB 40404 2271 5 soon soon RB 40404 2271 6 dropped drop VBD 40404 2271 7 along along IN 40404 2271 8 narrow narrow JJ 40404 2271 9 belts belt NNS 40404 2271 10 near near IN 40404 2271 11 land land NN 40404 2271 12 . . . 40404 2272 1 Gravels gravel NNS 40404 2272 2 and and CC 40404 2272 3 coarse coarse JJ 40404 2272 4 sands sand NNS 40404 2272 5 lie lie VBP 40404 2272 6 in in IN 40404 2272 7 thick thick JJ 40404 2272 8 , , , 40404 2272 9 wedge wedge NN 40404 2272 10 - - HYPH 40404 2272 11 shaped shape VBN 40404 2272 12 masses masse NNS 40404 2272 13 which which WDT 40404 2272 14 thin thin VBP 40404 2272 15 out out RP 40404 2272 16 seaward seaward NN 40404 2272 17 rapidly rapidly RB 40404 2272 18 and and CC 40404 2272 19 give give VB 40404 2272 20 place place NN 40404 2272 21 to to IN 40404 2272 22 sheets sheet NNS 40404 2272 23 of of IN 40404 2272 24 finer fine JJR 40404 2272 25 sand sand NN 40404 2272 26 . . . 40404 2273 1 = = NFP 40404 2273 2 Sea Sea NNP 40404 2273 3 muds.= muds.= CD 40404 2273 4 Outermost Outermost NNP 40404 2273 5 of of IN 40404 2273 6 the the DT 40404 2273 7 sediments sediment NNS 40404 2273 8 derived derive VBN 40404 2273 9 from from IN 40404 2273 10 the the DT 40404 2273 11 waste waste NN 40404 2273 12 of of IN 40404 2273 13 the the DT 40404 2273 14 continents continent NNS 40404 2273 15 is be VBZ 40404 2273 16 a a DT 40404 2273 17 wide wide JJ 40404 2273 18 belt belt NN 40404 2273 19 of of IN 40404 2273 20 mud mud NN 40404 2273 21 ; ; : 40404 2273 22 for for IN 40404 2273 23 fine fine JJ 40404 2273 24 clays clay NNS 40404 2273 25 settle settle VBP 40404 2273 26 so so RB 40404 2273 27 slowly slowly RB 40404 2273 28 , , , 40404 2273 29 even even RB 40404 2273 30 in in IN 40404 2273 31 sea sea NN 40404 2273 32 water,--whose water,--whose . 40404 2273 33 saltness saltness NN 40404 2273 34 causes cause VBZ 40404 2273 35 them -PRON- PRP 40404 2273 36 to to TO 40404 2273 37 sink sink VB 40404 2273 38 much much RB 40404 2273 39 faster fast RBR 40404 2273 40 than than IN 40404 2273 41 they -PRON- PRP 40404 2273 42 would would MD 40404 2273 43 in in IN 40404 2273 44 fresh fresh JJ 40404 2273 45 water,--that water,--that NNP 40404 2273 46 they -PRON- PRP 40404 2273 47 are be VBP 40404 2273 48 wafted waft VBN 40404 2273 49 far far RB 40404 2273 50 before before IN 40404 2273 51 they -PRON- PRP 40404 2273 52 reach reach VBP 40404 2273 53 a a DT 40404 2273 54 bottom bottom NN 40404 2273 55 where where WRB 40404 2273 56 they -PRON- PRP 40404 2273 57 may may MD 40404 2273 58 remain remain VB 40404 2273 59 undisturbed undisturbed JJ 40404 2273 60 . . . 40404 2274 1 Muds mud NNS 40404 2274 2 are be VBP 40404 2274 3 also also RB 40404 2274 4 found find VBN 40404 2274 5 near near IN 40404 2274 6 shore shore NN 40404 2274 7 , , , 40404 2274 8 carpeting carpet VBG 40404 2274 9 the the DT 40404 2274 10 floors floor NNS 40404 2274 11 of of IN 40404 2274 12 estuaries estuary NNS 40404 2274 13 , , , 40404 2274 14 and and CC 40404 2274 15 among among IN 40404 2274 16 stretches stretch NNS 40404 2274 17 of of IN 40404 2274 18 sandy sandy JJ 40404 2274 19 deposits deposit NNS 40404 2274 20 in in IN 40404 2274 21 hollows hollow NNS 40404 2274 22 where where WRB 40404 2274 23 the the DT 40404 2274 24 more more RBR 40404 2274 25 quiet quiet JJ 40404 2274 26 water water NN 40404 2274 27 has have VBZ 40404 2274 28 permitted permit VBN 40404 2274 29 the the DT 40404 2274 30 finer fine JJR 40404 2274 31 silt silt NN 40404 2274 32 to to TO 40404 2274 33 rest rest VB 40404 2274 34 . . . 40404 2275 1 Sea sea NN 40404 2275 2 muds mud NNS 40404 2275 3 are be VBP 40404 2275 4 commonly commonly RB 40404 2275 5 bluish bluish JJ 40404 2275 6 and and CC 40404 2275 7 consolidate consolidate JJ 40404 2275 8 to to IN 40404 2275 9 bluish bluish JJ 40404 2275 10 shales shale NNS 40404 2275 11 ; ; : 40404 2275 12 the the DT 40404 2275 13 red red NNP 40404 2275 14 coloring coloring NN 40404 2275 15 matter matter NN 40404 2275 16 brought bring VBD 40404 2275 17 from from IN 40404 2275 18 land land NN 40404 2275 19 waste waste NN 40404 2275 20 -- -- : 40404 2275 21 iron iron NN 40404 2275 22 oxide oxide NN 40404 2275 23 -- -- : 40404 2275 24 is be VBZ 40404 2275 25 altered alter VBN 40404 2275 26 to to IN 40404 2275 27 other other JJ 40404 2275 28 iron iron NN 40404 2275 29 compounds compound NNS 40404 2275 30 by by IN 40404 2275 31 decomposing decompose VBG 40404 2275 32 organic organic JJ 40404 2275 33 matter matter NN 40404 2275 34 in in IN 40404 2275 35 the the DT 40404 2275 36 presence presence NN 40404 2275 37 of of IN 40404 2275 38 sea sea NN 40404 2275 39 water water NN 40404 2275 40 . . . 40404 2276 1 Yellow yellow JJ 40404 2276 2 and and CC 40404 2276 3 red red JJ 40404 2276 4 muds mud NNS 40404 2276 5 occur occur VBP 40404 2276 6 where where WRB 40404 2276 7 the the DT 40404 2276 8 amount amount NN 40404 2276 9 of of IN 40404 2276 10 iron iron NN 40404 2276 11 oxide oxide NN 40404 2276 12 in in IN 40404 2276 13 the the DT 40404 2276 14 silt silt NN 40404 2276 15 brought bring VBD 40404 2276 16 down down RP 40404 2276 17 to to IN 40404 2276 18 the the DT 40404 2276 19 sea sea NN 40404 2276 20 by by IN 40404 2276 21 rivers river NNS 40404 2276 22 is be VBZ 40404 2276 23 too too RB 40404 2276 24 great great JJ 40404 2276 25 to to TO 40404 2276 26 be be VB 40404 2276 27 reduced reduce VBN 40404 2276 28 , , , 40404 2276 29 or or CC 40404 2276 30 decomposed decompose VBN 40404 2276 31 , , , 40404 2276 32 by by IN 40404 2276 33 the the DT 40404 2276 34 organic organic JJ 40404 2276 35 matter matter NN 40404 2276 36 present present JJ 40404 2276 37 . . . 40404 2277 1 Green green JJ 40404 2277 2 muds mud NNS 40404 2277 3 and and CC 40404 2277 4 green green JJ 40404 2277 5 sand sand NN 40404 2277 6 owe owe VBP 40404 2277 7 their -PRON- PRP$ 40404 2277 8 color color NN 40404 2277 9 to to IN 40404 2277 10 certain certain JJ 40404 2277 11 chemical chemical NN 40404 2277 12 changes change NNS 40404 2277 13 which which WDT 40404 2277 14 take take VBP 40404 2277 15 place place NN 40404 2277 16 where where WRB 40404 2277 17 waste waste NN 40404 2277 18 from from IN 40404 2277 19 the the DT 40404 2277 20 land land NN 40404 2277 21 accumulates accumulate NNS 40404 2277 22 on on IN 40404 2277 23 the the DT 40404 2277 24 sea sea NN 40404 2277 25 floor floor NN 40404 2277 26 with with IN 40404 2277 27 extreme extreme JJ 40404 2277 28 slowness slowness NN 40404 2277 29 . . . 40404 2278 1 A a DT 40404 2278 2 greenish greenish JJ 40404 2278 3 mineral mineral NN 40404 2278 4 called call VBD 40404 2278 5 _ _ NNP 40404 2278 6 glauconite_--a glauconite_--a NNP 40404 2278 7 silicate silicate NN 40404 2278 8 of of IN 40404 2278 9 iron iron NN 40404 2278 10 and and CC 40404 2278 11 alumina alumina NNP 40404 2278 12 -- -- : 40404 2278 13 is be VBZ 40404 2278 14 then then RB 40404 2278 15 formed form VBN 40404 2278 16 . . . 40404 2279 1 Such such JJ 40404 2279 2 deposits deposit NNS 40404 2279 3 , , , 40404 2279 4 known know VBN 40404 2279 5 as as IN 40404 2279 6 _ _ NNP 40404 2279 7 green green JJ 40404 2279 8 sand sand NN 40404 2279 9 _ _ NNP 40404 2279 10 , , , 40404 2279 11 are be VBP 40404 2279 12 now now RB 40404 2279 13 in in IN 40404 2279 14 process process NN 40404 2279 15 of of IN 40404 2279 16 making make VBG 40404 2279 17 in in IN 40404 2279 18 several several JJ 40404 2279 19 patches patch NNS 40404 2279 20 off off IN 40404 2279 21 the the DT 40404 2279 22 Atlantic Atlantic NNP 40404 2279 23 coast coast NN 40404 2279 24 , , , 40404 2279 25 and and CC 40404 2279 26 are be VBP 40404 2279 27 found find VBN 40404 2279 28 on on IN 40404 2279 29 the the DT 40404 2279 30 coastal coastal JJ 40404 2279 31 plain plain NN 40404 2279 32 of of IN 40404 2279 33 New New NNP 40404 2279 34 Jersey Jersey NNP 40404 2279 35 among among IN 40404 2279 36 the the DT 40404 2279 37 offshore offshore JJ 40404 2279 38 deposits deposit NNS 40404 2279 39 of of IN 40404 2279 40 earlier early JJR 40404 2279 41 geological geological JJ 40404 2279 42 ages age NNS 40404 2279 43 . . . 40404 2280 1 = = NFP 40404 2280 2 Organic organic JJ 40404 2280 3 deposits.= deposits.= NNP 40404 2280 4 Living living NN 40404 2280 5 creatures creature VBZ 40404 2280 6 swarm swarm VB 40404 2280 7 along along IN 40404 2280 8 the the DT 40404 2280 9 shore shore NN 40404 2280 10 and and CC 40404 2280 11 on on IN 40404 2280 12 the the DT 40404 2280 13 shallows shallow NNS 40404 2280 14 out out RP 40404 2280 15 from from IN 40404 2280 16 land land NN 40404 2280 17 as as IN 40404 2280 18 nowhere nowhere RB 40404 2280 19 else else RB 40404 2280 20 in in IN 40404 2280 21 the the DT 40404 2280 22 ocean ocean NN 40404 2280 23 . . . 40404 2281 1 Seaweed seaweed VB 40404 2281 2 often often RB 40404 2281 3 mantles mantle VBZ 40404 2281 4 the the DT 40404 2281 5 rock rock NN 40404 2281 6 of of IN 40404 2281 7 the the DT 40404 2281 8 sea sea NN 40404 2281 9 cliff cliff NN 40404 2281 10 between between IN 40404 2281 11 the the DT 40404 2281 12 levels level NNS 40404 2281 13 of of IN 40404 2281 14 high high JJ 40404 2281 15 and and CC 40404 2281 16 low low JJ 40404 2281 17 tide tide NN 40404 2281 18 , , , 40404 2281 19 protecting protect VBG 40404 2281 20 it -PRON- PRP 40404 2281 21 to to IN 40404 2281 22 some some DT 40404 2281 23 degree degree NN 40404 2281 24 from from IN 40404 2281 25 the the DT 40404 2281 26 blows blow NNS 40404 2281 27 of of IN 40404 2281 28 waves wave NNS 40404 2281 29 . . . 40404 2282 1 On on IN 40404 2282 2 the the DT 40404 2282 3 rock rock NN 40404 2282 4 bench bench NN 40404 2282 5 each each DT 40404 2282 6 little little JJ 40404 2282 7 pool pool NN 40404 2282 8 left leave VBN 40404 2282 9 by by IN 40404 2282 10 the the DT 40404 2282 11 ebbing ebbing JJ 40404 2282 12 tide tide NN 40404 2282 13 is be VBZ 40404 2282 14 an an DT 40404 2282 15 aquarium aquarium NN 40404 2282 16 abounding abound VBG 40404 2282 17 in in IN 40404 2282 18 the the DT 40404 2282 19 lowly lowly JJ 40404 2282 20 forms form NNS 40404 2282 21 of of IN 40404 2282 22 marine marine JJ 40404 2282 23 life life NN 40404 2282 24 . . . 40404 2283 1 Below below IN 40404 2283 2 low low JJ 40404 2283 3 - - HYPH 40404 2283 4 tide tide NN 40404 2283 5 level level NN 40404 2283 6 occur occur VBP 40404 2283 7 beds bed NNS 40404 2283 8 of of IN 40404 2283 9 molluscous molluscous JJ 40404 2283 10 shells shell NNS 40404 2283 11 , , , 40404 2283 12 such such JJ 40404 2283 13 as as IN 40404 2283 14 the the DT 40404 2283 15 oyster oyster NN 40404 2283 16 , , , 40404 2283 17 with with IN 40404 2283 18 countless countless JJ 40404 2283 19 numbers number NNS 40404 2283 20 of of IN 40404 2283 21 other other JJ 40404 2283 22 humble humble JJ 40404 2283 23 organisms organism NNS 40404 2283 24 . . . 40404 2284 1 Their -PRON- PRP$ 40404 2284 2 harder hard JJR 40404 2284 3 parts part NNS 40404 2284 4 -- -- : 40404 2284 5 the the DT 40404 2284 6 shells shell NNS 40404 2284 7 of of IN 40404 2284 8 mollusks mollusk NNS 40404 2284 9 , , , 40404 2284 10 the the DT 40404 2284 11 white white JJ 40404 2284 12 framework framework NN 40404 2284 13 of of IN 40404 2284 14 corals coral NNS 40404 2284 15 , , , 40404 2284 16 the the DT 40404 2284 17 carapaces carapace NNS 40404 2284 18 of of IN 40404 2284 19 crabs crab NNS 40404 2284 20 and and CC 40404 2284 21 other other JJ 40404 2284 22 crustaceans crustacean NNS 40404 2284 23 , , , 40404 2284 24 the the DT 40404 2284 25 shells shell NNS 40404 2284 26 of of IN 40404 2284 27 sea sea NN 40404 2284 28 urchins urchin NNS 40404 2284 29 , , , 40404 2284 30 the the DT 40404 2284 31 bones bone NNS 40404 2284 32 and and CC 40404 2284 33 teeth tooth NNS 40404 2284 34 of of IN 40404 2284 35 fishes fish NNS 40404 2284 36 -- -- : 40404 2284 37 are be VBP 40404 2284 38 gradually gradually RB 40404 2284 39 buried bury VBN 40404 2284 40 within within IN 40404 2284 41 the the DT 40404 2284 42 accumulating accumulate VBG 40404 2284 43 sheets sheet NNS 40404 2284 44 of of IN 40404 2284 45 sediment sediment NN 40404 2284 46 , , , 40404 2284 47 either either CC 40404 2284 48 whole whole JJ 40404 2284 49 or or CC 40404 2284 50 , , , 40404 2284 51 far far RB 40404 2284 52 more more RBR 40404 2284 53 often often RB 40404 2284 54 , , , 40404 2284 55 broken break VBN 40404 2284 56 into into IN 40404 2284 57 fragments fragment NNS 40404 2284 58 by by IN 40404 2284 59 the the DT 40404 2284 60 waves wave NNS 40404 2284 61 . . . 40404 2285 1 By by IN 40404 2285 2 means mean NNS 40404 2285 3 of of IN 40404 2285 4 these these DT 40404 2285 5 organic organic JJ 40404 2285 6 remains remain VBZ 40404 2285 7 each each DT 40404 2285 8 layer layer NN 40404 2285 9 of of IN 40404 2285 10 beach beach NN 40404 2285 11 deposits deposit NNS 40404 2285 12 and and CC 40404 2285 13 those those DT 40404 2285 14 of of IN 40404 2285 15 the the DT 40404 2285 16 continental continental JJ 40404 2285 17 delta delta NNP 40404 2285 18 may may MD 40404 2285 19 contain contain VB 40404 2285 20 a a DT 40404 2285 21 record record NN 40404 2285 22 of of IN 40404 2285 23 the the DT 40404 2285 24 life life NN 40404 2285 25 of of IN 40404 2285 26 the the DT 40404 2285 27 time time NN 40404 2285 28 when when WRB 40404 2285 29 it -PRON- PRP 40404 2285 30 was be VBD 40404 2285 31 laid lay VBN 40404 2285 32 . . . 40404 2286 1 Such such PDT 40404 2286 2 a a DT 40404 2286 3 record record NN 40404 2286 4 has have VBZ 40404 2286 5 been be VBN 40404 2286 6 made make VBN 40404 2286 7 ever ever RB 40404 2286 8 since since IN 40404 2286 9 living live VBG 40404 2286 10 creatures creature NNS 40404 2286 11 with with IN 40404 2286 12 hard hard JJ 40404 2286 13 parts part NNS 40404 2286 14 appeared appear VBD 40404 2286 15 upon upon IN 40404 2286 16 the the DT 40404 2286 17 globe globe NN 40404 2286 18 . . . 40404 2287 1 We -PRON- PRP 40404 2287 2 shall shall MD 40404 2287 3 find find VB 40404 2287 4 it -PRON- PRP 40404 2287 5 sealed seal VBN 40404 2287 6 away away RB 40404 2287 7 in in IN 40404 2287 8 the the DT 40404 2287 9 stratified stratified JJ 40404 2287 10 rocks rock NNS 40404 2287 11 of of IN 40404 2287 12 the the DT 40404 2287 13 continents,--parts continents,--parts NNP 40404 2287 14 of of IN 40404 2287 15 ancient ancient JJ 40404 2287 16 sea sea NN 40404 2287 17 deposits deposit NNS 40404 2287 18 now now RB 40404 2287 19 raised raise VBN 40404 2287 20 to to TO 40404 2287 21 form form VB 40404 2287 22 the the DT 40404 2287 23 dry dry JJ 40404 2287 24 land land NN 40404 2287 25 . . . 40404 2288 1 Thus thus RB 40404 2288 2 we -PRON- PRP 40404 2288 3 have have VBP 40404 2288 4 in in IN 40404 2288 5 the the DT 40404 2288 6 traces trace NNS 40404 2288 7 of of IN 40404 2288 8 living living NN 40404 2288 9 creatures creature NNS 40404 2288 10 found find VBN 40404 2288 11 in in IN 40404 2288 12 the the DT 40404 2288 13 rocks rock NNS 40404 2288 14 , , , 40404 2288 15 i.e. i.e. FW 40404 2289 1 in in IN 40404 2289 2 fossils fossil NNS 40404 2289 3 , , , 40404 2289 4 a a DT 40404 2289 5 history history NN 40404 2289 6 of of IN 40404 2289 7 the the DT 40404 2289 8 progress progress NN 40404 2289 9 of of IN 40404 2289 10 life life NN 40404 2289 11 upon upon IN 40404 2289 12 the the DT 40404 2289 13 planet planet NN 40404 2289 14 . . . 40404 2290 1 [ [ -LRB- 40404 2290 2 Illustration illustration NN 40404 2290 3 : : : 40404 2290 4 Fig Fig NNP 40404 2290 5 . . . 40404 2291 1 149 149 CD 40404 2291 2 . . . 40404 2292 1 Coquina Coquina NNP 40404 2292 2 , , , 40404 2292 3 Florida Florida NNP 40404 2292 4 ] ] -RRB- 40404 2292 5 = = SYM 40404 2292 6 Molluscous molluscous JJ 40404 2292 7 shell shell NN 40404 2292 8 deposits.= deposits.= NN 40404 2292 9 The the DT 40404 2292 10 forms form NNS 40404 2292 11 of of IN 40404 2292 12 marine marine JJ 40404 2292 13 life life NN 40404 2292 14 of of IN 40404 2292 15 importance importance NN 40404 2292 16 in in IN 40404 2292 17 rock rock NN 40404 2292 18 making make VBG 40404 2292 19 thrive thrive VB 40404 2292 20 best well RBS 40404 2292 21 in in IN 40404 2292 22 clear clear JJ 40404 2292 23 water water NN 40404 2292 24 , , , 40404 2292 25 where where WRB 40404 2292 26 little little JJ 40404 2292 27 sediment sediment NN 40404 2292 28 is be VBZ 40404 2292 29 being be VBG 40404 2292 30 laid lay VBN 40404 2292 31 , , , 40404 2292 32 and and CC 40404 2292 33 where where WRB 40404 2292 34 at at IN 40404 2292 35 the the DT 40404 2292 36 same same JJ 40404 2292 37 time time NN 40404 2292 38 the the DT 40404 2292 39 depth depth NN 40404 2292 40 is be VBZ 40404 2292 41 not not RB 40404 2292 42 so so RB 40404 2292 43 great great JJ 40404 2292 44 as as IN 40404 2292 45 to to TO 40404 2292 46 deprive deprive VB 40404 2292 47 them -PRON- PRP 40404 2292 48 of of IN 40404 2292 49 needed need VBN 40404 2292 50 light light NN 40404 2292 51 , , , 40404 2292 52 heat heat NN 40404 2292 53 , , , 40404 2292 54 and and CC 40404 2292 55 of of IN 40404 2292 56 sufficient sufficient JJ 40404 2292 57 oxygen oxygen NN 40404 2292 58 absorbed absorb VBN 40404 2292 59 by by IN 40404 2292 60 sea sea NN 40404 2292 61 water water NN 40404 2292 62 from from IN 40404 2292 63 the the DT 40404 2292 64 air air NN 40404 2292 65 . . . 40404 2293 1 In in IN 40404 2293 2 such such JJ 40404 2293 3 clear clear JJ 40404 2293 4 and and CC 40404 2293 5 comparatively comparatively RB 40404 2293 6 shallow shallow JJ 40404 2293 7 water water NN 40404 2293 8 there there RB 40404 2293 9 often often RB 40404 2293 10 grow grow VBP 40404 2293 11 countless countless JJ 40404 2293 12 myriads myriad NNS 40404 2293 13 of of IN 40404 2293 14 animals animal NNS 40404 2293 15 , , , 40404 2293 16 such such JJ 40404 2293 17 as as IN 40404 2293 18 mollusks mollusk NNS 40404 2293 19 and and CC 40404 2293 20 corals coral NNS 40404 2293 21 , , , 40404 2293 22 whose whose WP$ 40404 2293 23 shells shell NNS 40404 2293 24 and and CC 40404 2293 25 skeletons skeleton NNS 40404 2293 26 of of IN 40404 2293 27 carbonate carbonate NN 40404 2293 28 of of IN 40404 2293 29 lime lime NN 40404 2293 30 gradually gradually RB 40404 2293 31 accumulate accumulate VBP 40404 2293 32 in in IN 40404 2293 33 beds bed NNS 40404 2293 34 of of IN 40404 2293 35 limestone limestone NN 40404 2293 36 . . . 40404 2294 1 A a DT 40404 2294 2 shell shell NN 40404 2294 3 limestone limestone NN 40404 2294 4 made make VBN 40404 2294 5 of of IN 40404 2294 6 broken broken JJ 40404 2294 7 fragments fragment NNS 40404 2294 8 cemented cement VBN 40404 2294 9 together together RB 40404 2294 10 is be VBZ 40404 2294 11 sometimes sometimes RB 40404 2294 12 called call VBN 40404 2294 13 _ _ NNP 40404 2294 14 coquina coquina NNP 40404 2294 15 _ _ NNP 40404 2294 16 , , , 40404 2294 17 a a DT 40404 2294 18 local local JJ 40404 2294 19 term term NN 40404 2294 20 applied apply VBN 40404 2294 21 to to IN 40404 2294 22 such such JJ 40404 2294 23 beds bed NNS 40404 2294 24 recently recently RB 40404 2294 25 uplifted uplifted JJ 40404 2294 26 from from IN 40404 2294 27 the the DT 40404 2294 28 sea sea NN 40404 2294 29 along along IN 40404 2294 30 the the DT 40404 2294 31 coast coast NN 40404 2294 32 of of IN 40404 2294 33 Florida Florida NNP 40404 2294 34 ( ( -LRB- 40404 2294 35 Fig Fig NNP 40404 2294 36 . . . 40404 2295 1 149 149 CD 40404 2295 2 ) ) -RRB- 40404 2295 3 . . . 40404 2296 1 _ _ NNP 40404 2296 2 Oölitic Oölitic NNP 40404 2296 3 _ _ NNP 40404 2296 4 limestone limestone NN 40404 2296 5 ( ( -LRB- 40404 2296 6 _ _ NNP 40404 2296 7 öon öon NNP 40404 2296 8 _ _ NNP 40404 2296 9 , , , 40404 2296 10 an an DT 40404 2296 11 egg egg NN 40404 2296 12 ; ; : 40404 2296 13 _ _ NNP 40404 2296 14 lithos lithos NNP 40404 2296 15 _ _ NNP 40404 2296 16 , , , 40404 2296 17 a a DT 40404 2296 18 stone stone NN 40404 2296 19 ) ) -RRB- 40404 2296 20 is be VBZ 40404 2296 21 so so RB 40404 2296 22 named name VBN 40404 2296 23 from from IN 40404 2296 24 the the DT 40404 2296 25 likeness likeness NN 40404 2296 26 of of IN 40404 2296 27 the the DT 40404 2296 28 tiny tiny JJ 40404 2296 29 spherules spherule NNS 40404 2296 30 which which WDT 40404 2296 31 compose compose VBP 40404 2296 32 it -PRON- PRP 40404 2296 33 to to IN 40404 2296 34 the the DT 40404 2296 35 roe roe NN 40404 2296 36 of of IN 40404 2296 37 fish fish NN 40404 2296 38 . . . 40404 2297 1 Corals coral NNS 40404 2297 2 and and CC 40404 2297 3 shells shell NNS 40404 2297 4 have have VBP 40404 2297 5 been be VBN 40404 2297 6 pounded pound VBN 40404 2297 7 by by IN 40404 2297 8 the the DT 40404 2297 9 waves wave NNS 40404 2297 10 to to IN 40404 2297 11 calcareous calcareous JJ 40404 2297 12 sand sand NN 40404 2297 13 , , , 40404 2297 14 and and CC 40404 2297 15 each each DT 40404 2297 16 grain grain NN 40404 2297 17 has have VBZ 40404 2297 18 been be VBN 40404 2297 19 covered cover VBN 40404 2297 20 with with IN 40404 2297 21 successive successive JJ 40404 2297 22 concentric concentric JJ 40404 2297 23 coatings coating NNS 40404 2297 24 of of IN 40404 2297 25 lime lime NN 40404 2297 26 carbonate carbonate NN 40404 2297 27 deposited deposit VBN 40404 2297 28 about about IN 40404 2297 29 it -PRON- PRP 40404 2297 30 from from IN 40404 2297 31 solution solution NN 40404 2297 32 . . . 40404 2298 1 The the DT 40404 2298 2 impalpable impalpable JJ 40404 2298 3 powder powder NN 40404 2298 4 to to TO 40404 2298 5 which which WDT 40404 2298 6 calcareous calcareous JJ 40404 2298 7 sand sand NN 40404 2298 8 is be VBZ 40404 2298 9 ground grind VBN 40404 2298 10 by by IN 40404 2298 11 the the DT 40404 2298 12 waves wave NNS 40404 2298 13 settles settle VBZ 40404 2298 14 at at IN 40404 2298 15 some some DT 40404 2298 16 distance distance NN 40404 2298 17 from from IN 40404 2298 18 shore shore NN 40404 2298 19 in in IN 40404 2298 20 deeper deep JJR 40404 2298 21 and and CC 40404 2298 22 quieter quieter NN 40404 2298 23 water water NN 40404 2298 24 as as IN 40404 2298 25 a a DT 40404 2298 26 limy limy NN 40404 2298 27 silt silt NN 40404 2298 28 , , , 40404 2298 29 and and CC 40404 2298 30 hardens harden NNS 40404 2298 31 into into IN 40404 2298 32 a a DT 40404 2298 33 dense dense JJ 40404 2298 34 , , , 40404 2298 35 fine fine RB 40404 2298 36 - - HYPH 40404 2298 37 grained grain VBN 40404 2298 38 limestone limestone NN 40404 2298 39 in in IN 40404 2298 40 which which WDT 40404 2298 41 perhaps perhaps RB 40404 2298 42 no no DT 40404 2298 43 trace trace NN 40404 2298 44 of of IN 40404 2298 45 fossil fossil NN 40404 2298 46 is be VBZ 40404 2298 47 found find VBN 40404 2298 48 to to TO 40404 2298 49 suggest suggest VB 40404 2298 50 the the DT 40404 2298 51 fact fact NN 40404 2298 52 that that IN 40404 2298 53 it -PRON- PRP 40404 2298 54 is be VBZ 40404 2298 55 of of IN 40404 2298 56 organic organic JJ 40404 2298 57 origin origin NN 40404 2298 58 . . . 40404 2299 1 From from IN 40404 2299 2 Florida Florida NNP 40404 2299 3 Keys Keys NNP 40404 2299 4 there there EX 40404 2299 5 extends extend VBZ 40404 2299 6 south south RB 40404 2299 7 to to IN 40404 2299 8 the the DT 40404 2299 9 trough trough NN 40404 2299 10 of of IN 40404 2299 11 Florida Florida NNP 40404 2299 12 Straits Straits NNPS 40404 2299 13 a a DT 40404 2299 14 limestone limestone NN 40404 2299 15 bank bank NN 40404 2299 16 covered cover VBN 40404 2299 17 by by IN 40404 2299 18 from from IN 40404 2299 19 five five CD 40404 2299 20 hundred hundred CD 40404 2299 21 and and CC 40404 2299 22 forty forty CD 40404 2299 23 to to TO 40404 2299 24 eighteen eighteen CD 40404 2299 25 hundred hundred CD 40404 2299 26 feet foot NNS 40404 2299 27 of of IN 40404 2299 28 water water NN 40404 2299 29 . . . 40404 2300 1 The the DT 40404 2300 2 rocky rocky JJ 40404 2300 3 bottom bottom NN 40404 2300 4 consists consist VBZ 40404 2300 5 of of IN 40404 2300 6 limestone limestone NN 40404 2300 7 now now RB 40404 2300 8 slowly slowly RB 40404 2300 9 building build VBG 40404 2300 10 from from IN 40404 2300 11 the the DT 40404 2300 12 accumulation accumulation NN 40404 2300 13 of of IN 40404 2300 14 the the DT 40404 2300 15 remains remain NNS 40404 2300 16 of of IN 40404 2300 17 mollusks mollusk NNS 40404 2300 18 , , , 40404 2300 19 small small JJ 40404 2300 20 corals coral NNS 40404 2300 21 , , , 40404 2300 22 sea sea NN 40404 2300 23 urchins urchin NNS 40404 2300 24 , , , 40404 2300 25 worms worm NNS 40404 2300 26 with with IN 40404 2300 27 calcareous calcareous JJ 40404 2300 28 tubes tube NNS 40404 2300 29 , , , 40404 2300 30 and and CC 40404 2300 31 lime lime NN 40404 2300 32 - - HYPH 40404 2300 33 secreting secrete VBG 40404 2300 34 seaweed seaweed NN 40404 2300 35 , , , 40404 2300 36 which which WDT 40404 2300 37 live live VBP 40404 2300 38 upon upon IN 40404 2300 39 its -PRON- PRP$ 40404 2300 40 surface surface NN 40404 2300 41 . . . 40404 2301 1 Where where WRB 40404 2301 2 sponges sponge NNS 40404 2301 3 and and CC 40404 2301 4 other other JJ 40404 2301 5 silica silica NN 40404 2301 6 - - HYPH 40404 2301 7 secreting secrete VBG 40404 2301 8 organisms organism NNS 40404 2301 9 abound abound VBP 40404 2301 10 on on IN 40404 2301 11 limestone limestone NN 40404 2301 12 banks bank NNS 40404 2301 13 , , , 40404 2301 14 silica silica NNP 40404 2301 15 forms form VBZ 40404 2301 16 part part NN 40404 2301 17 of of IN 40404 2301 18 the the DT 40404 2301 19 accumulated accumulate VBN 40404 2301 20 deposit deposit NN 40404 2301 21 , , , 40404 2301 22 either either CC 40404 2301 23 in in IN 40404 2301 24 its -PRON- PRP$ 40404 2301 25 original original JJ 40404 2301 26 condition condition NN 40404 2301 27 , , , 40404 2301 28 as as IN 40404 2301 29 , , , 40404 2301 30 for for IN 40404 2301 31 example example NN 40404 2301 32 , , , 40404 2301 33 the the DT 40404 2301 34 spicules spicule NNS 40404 2301 35 of of IN 40404 2301 36 sponges sponge NNS 40404 2301 37 , , , 40404 2301 38 or or CC 40404 2301 39 gathered gather VBD 40404 2301 40 into into IN 40404 2301 41 concretions concretion NNS 40404 2301 42 and and CC 40404 2301 43 layers layer NNS 40404 2301 44 of of IN 40404 2301 45 flint flint NN 40404 2301 46 . . . 40404 2302 1 Where where WRB 40404 2302 2 considerable considerable JJ 40404 2302 3 mud mud NN 40404 2302 4 is be VBZ 40404 2302 5 being be VBG 40404 2302 6 deposited deposit VBN 40404 2302 7 along along IN 40404 2302 8 with with IN 40404 2302 9 carbonate carbonate NN 40404 2302 10 of of IN 40404 2302 11 lime lime NN 40404 2302 12 there there EX 40404 2302 13 is be VBZ 40404 2302 14 in in IN 40404 2302 15 process process NN 40404 2302 16 of of IN 40404 2302 17 making make VBG 40404 2302 18 a a DT 40404 2302 19 clayey clayey NN 40404 2302 20 limestone limestone NN 40404 2302 21 or or CC 40404 2302 22 a a DT 40404 2302 23 limy limy NNP 40404 2302 24 shale shale NN 40404 2302 25 ; ; : 40404 2302 26 where where WRB 40404 2302 27 considerable considerable JJ 40404 2302 28 sand sand NN 40404 2302 29 , , , 40404 2302 30 a a DT 40404 2302 31 sandy sandy JJ 40404 2302 32 limestone limestone NN 40404 2302 33 or or CC 40404 2302 34 a a DT 40404 2302 35 limy limy NN 40404 2302 36 sandstone sandstone NN 40404 2302 37 . . . 40404 2303 1 = = NFP 40404 2303 2 Consolidation consolidation NN 40404 2303 3 of of IN 40404 2303 4 offshore offshore JJ 40404 2303 5 deposits.= deposits.= NN 40404 2303 6 We -PRON- PRP 40404 2303 7 can can MD 40404 2303 8 not not RB 40404 2303 9 doubt doubt VB 40404 2303 10 that that IN 40404 2303 11 all all PDT 40404 2303 12 these these DT 40404 2303 13 loose loose JJ 40404 2303 14 sediments sediment NNS 40404 2303 15 of of IN 40404 2303 16 the the DT 40404 2303 17 sea sea NN 40404 2303 18 floor floor NN 40404 2303 19 are be VBP 40404 2303 20 being be VBG 40404 2303 21 slowly slowly RB 40404 2303 22 consolidated consolidate VBN 40404 2303 23 to to IN 40404 2303 24 solid solid JJ 40404 2303 25 rock rock NN 40404 2303 26 . . . 40404 2304 1 They -PRON- PRP 40404 2304 2 are be VBP 40404 2304 3 soaked soak VBN 40404 2304 4 with with IN 40404 2304 5 water water NN 40404 2304 6 which which WDT 40404 2304 7 carries carry VBZ 40404 2304 8 in in IN 40404 2304 9 solution solution NN 40404 2304 10 lime lime NN 40404 2304 11 carbonate carbonate NN 40404 2304 12 and and CC 40404 2304 13 other other JJ 40404 2304 14 cementing cement VBG 40404 2304 15 substances substance NNS 40404 2304 16 . . . 40404 2305 1 These these DT 40404 2305 2 cements cement NNS 40404 2305 3 are be VBP 40404 2305 4 deposited deposit VBN 40404 2305 5 between between IN 40404 2305 6 the the DT 40404 2305 7 fragments fragment NNS 40404 2305 8 of of IN 40404 2305 9 shells shell NNS 40404 2305 10 and and CC 40404 2305 11 corals coral NNS 40404 2305 12 , , , 40404 2305 13 the the DT 40404 2305 14 grains grain NNS 40404 2305 15 of of IN 40404 2305 16 sand sand NN 40404 2305 17 and and CC 40404 2305 18 the the DT 40404 2305 19 particles particle NNS 40404 2305 20 of of IN 40404 2305 21 mud mud NN 40404 2305 22 , , , 40404 2305 23 binding bind VBG 40404 2305 24 them -PRON- PRP 40404 2305 25 together together RB 40404 2305 26 into into IN 40404 2305 27 firm firm JJ 40404 2305 28 rock rock NN 40404 2305 29 . . . 40404 2306 1 Where where WRB 40404 2306 2 sediments sediment NNS 40404 2306 3 have have VBP 40404 2306 4 accumulated accumulate VBN 40404 2306 5 to to IN 40404 2306 6 great great JJ 40404 2306 7 thickness thickness NN 40404 2306 8 the the DT 40404 2306 9 lower low JJR 40404 2306 10 portions portion NNS 40404 2306 11 tend tend VBP 40404 2306 12 also also RB 40404 2306 13 to to TO 40404 2306 14 consolidate consolidate VB 40404 2306 15 under under IN 40404 2306 16 the the DT 40404 2306 17 weight weight NN 40404 2306 18 of of IN 40404 2306 19 the the DT 40404 2306 20 overlying overlying NN 40404 2306 21 beds bed NNS 40404 2306 22 . . . 40404 2307 1 Except except IN 40404 2307 2 in in IN 40404 2307 3 the the DT 40404 2307 4 case case NN 40404 2307 5 of of IN 40404 2307 6 limestones limestone NNS 40404 2307 7 , , , 40404 2307 8 recent recent JJ 40404 2307 9 sea sea NN 40404 2307 10 deposits deposit NNS 40404 2307 11 uplifted uplift VBN 40404 2307 12 to to TO 40404 2307 13 form form VB 40404 2307 14 land land NN 40404 2307 15 are be VBP 40404 2307 16 seldom seldom RB 40404 2307 17 so so RB 40404 2307 18 well well RB 40404 2307 19 cemented cemented JJ 40404 2307 20 as as IN 40404 2307 21 are be VBP 40404 2307 22 the the DT 40404 2307 23 older old JJR 40404 2307 24 strata strata NN 40404 2307 25 , , , 40404 2307 26 which which WDT 40404 2307 27 have have VBP 40404 2307 28 long long RB 40404 2307 29 been be VBN 40404 2307 30 acted act VBN 40404 2307 31 upon upon IN 40404 2307 32 by by IN 40404 2307 33 underground underground JJ 40404 2307 34 waters water NNS 40404 2307 35 deep deep RB 40404 2307 36 below below IN 40404 2307 37 the the DT 40404 2307 38 surface surface NN 40404 2307 39 within within IN 40404 2307 40 the the DT 40404 2307 41 zone zone NN 40404 2307 42 of of IN 40404 2307 43 cementation cementation NN 40404 2307 44 , , , 40404 2307 45 and and CC 40404 2307 46 have have VBP 40404 2307 47 been be VBN 40404 2307 48 exposed expose VBN 40404 2307 49 to to IN 40404 2307 50 view view VB 40404 2307 51 by by IN 40404 2307 52 great great JJ 40404 2307 53 erosion erosion NN 40404 2307 54 . . . 40404 2308 1 [ [ -LRB- 40404 2308 2 Illustration illustration NN 40404 2308 3 : : : 40404 2308 4 Fig Fig NNP 40404 2308 5 . . . 40404 2309 1 150 150 CD 40404 2309 2 . . . 40404 2310 1 Ripple ripple JJ 40404 2310 2 Marks mark NNS 40404 2310 3 on on IN 40404 2310 4 Layers Layers NNPS 40404 2310 5 of of IN 40404 2310 6 Ancient Ancient NNP 40404 2310 7 Sandstone Sandstone NNP 40404 2310 8 , , , 40404 2310 9 Wisconsin Wisconsin NNP 40404 2310 10 ] ] -RRB- 40404 2310 11 = = NFP 40404 2310 12 Ripple ripple JJ 40404 2310 13 marks mark NNS 40404 2310 14 , , , 40404 2310 15 sun sun NN 40404 2310 16 cracks crack VBZ 40404 2310 17 , , , 40404 2310 18 etc.= etc.= `` 40404 2310 19 The the DT 40404 2310 20 pulse pulse NN 40404 2310 21 of of IN 40404 2310 22 waves wave NNS 40404 2310 23 and and CC 40404 2310 24 tidal tidal JJ 40404 2310 25 currents current NNS 40404 2310 26 agitates agitate VBZ 40404 2310 27 the the DT 40404 2310 28 loose loose JJ 40404 2310 29 material material NN 40404 2310 30 of of IN 40404 2310 31 offshore offshore JJ 40404 2310 32 deposits deposit NNS 40404 2310 33 , , , 40404 2310 34 throwing throw VBG 40404 2310 35 it -PRON- PRP 40404 2310 36 into into IN 40404 2310 37 fine fine JJ 40404 2310 38 parallel parallel JJ 40404 2310 39 ridges ridge NNS 40404 2310 40 called call VBD 40404 2310 41 ripple ripple JJ 40404 2310 42 marks mark NNS 40404 2310 43 . . . 40404 2311 1 One one PRP 40404 2311 2 may may MD 40404 2311 3 see see VB 40404 2311 4 this this DT 40404 2311 5 beautiful beautiful JJ 40404 2311 6 ribbing ribbing NN 40404 2311 7 imprinted imprinted JJ 40404 2311 8 on on IN 40404 2311 9 beach beach NN 40404 2311 10 sands sand NNS 40404 2311 11 uncovered uncover VBN 40404 2311 12 by by IN 40404 2311 13 the the DT 40404 2311 14 outgoing outgoing JJ 40404 2311 15 tide tide NN 40404 2311 16 , , , 40404 2311 17 and and CC 40404 2311 18 it -PRON- PRP 40404 2311 19 is be VBZ 40404 2311 20 also also RB 40404 2311 21 produced produce VBN 40404 2311 22 where where WRB 40404 2311 23 the the DT 40404 2311 24 water water NN 40404 2311 25 is be VBZ 40404 2311 26 of of IN 40404 2311 27 considerable considerable JJ 40404 2311 28 depth depth NN 40404 2311 29 . . . 40404 2312 1 While while IN 40404 2312 2 the the DT 40404 2312 3 tide tide NN 40404 2312 4 is be VBZ 40404 2312 5 out out IN 40404 2312 6 the the DT 40404 2312 7 surface surface NN 40404 2312 8 of of IN 40404 2312 9 shore shore NN 40404 2312 10 deposits deposit NNS 40404 2312 11 may may MD 40404 2312 12 be be VB 40404 2312 13 marked mark VBN 40404 2312 14 by by IN 40404 2312 15 the the DT 40404 2312 16 footprints footprint NNS 40404 2312 17 of of IN 40404 2312 18 birds bird NNS 40404 2312 19 and and CC 40404 2312 20 other other JJ 40404 2312 21 animals animal NNS 40404 2312 22 , , , 40404 2312 23 or or CC 40404 2312 24 by by IN 40404 2312 25 the the DT 40404 2312 26 raindrops raindrop NNS 40404 2312 27 of of IN 40404 2312 28 a a DT 40404 2312 29 passing pass VBG 40404 2312 30 shower shower NN 40404 2312 31 ( ( -LRB- 40404 2312 32 Fig fig NN 40404 2312 33 . . . 40404 2313 1 153 153 CD 40404 2313 2 ) ) -RRB- 40404 2313 3 . . . 40404 2314 1 The the DT 40404 2314 2 mud mud NN 40404 2314 3 of of IN 40404 2314 4 flats flat NNS 40404 2314 5 , , , 40404 2314 6 thus thus RB 40404 2314 7 exposed expose VBN 40404 2314 8 to to IN 40404 2314 9 the the DT 40404 2314 10 sun sun NN 40404 2314 11 and and CC 40404 2314 12 dried dry VBN 40404 2314 13 , , , 40404 2314 14 cracks crack VBZ 40404 2314 15 in in IN 40404 2314 16 a a DT 40404 2314 17 characteristic characteristic JJ 40404 2314 18 way way NN 40404 2314 19 ( ( -LRB- 40404 2314 20 Figs fig NNS 40404 2314 21 . . . 40404 2315 1 151 151 CD 40404 2315 2 and and CC 40404 2315 3 152 152 CD 40404 2315 4 ) ) -RRB- 40404 2315 5 . . . 40404 2316 1 Such such JJ 40404 2316 2 markings marking NNS 40404 2316 3 may may MD 40404 2316 4 be be VB 40404 2316 5 covered cover VBN 40404 2316 6 over over RB 40404 2316 7 with with IN 40404 2316 8 a a DT 40404 2316 9 thin thin JJ 40404 2316 10 layer layer NN 40404 2316 11 of of IN 40404 2316 12 sediment sediment NN 40404 2316 13 at at IN 40404 2316 14 the the DT 40404 2316 15 next next JJ 40404 2316 16 flood flood NN 40404 2316 17 tide tide NN 40404 2316 18 and and CC 40404 2316 19 sealed seal VBD 40404 2316 20 away away RB 40404 2316 21 as as IN 40404 2316 22 a a DT 40404 2316 23 lasting lasting JJ 40404 2316 24 record record NN 40404 2316 25 of of IN 40404 2316 26 the the DT 40404 2316 27 manner manner NN 40404 2316 28 and and CC 40404 2316 29 place place NN 40404 2316 30 in in IN 40404 2316 31 which which WDT 40404 2316 32 the the DT 40404 2316 33 strata strata NN 40404 2316 34 were be VBD 40404 2316 35 laid lay VBN 40404 2316 36 . . . 40404 2317 1 In in IN 40404 2317 2 Figure Figure NNP 40404 2317 3 150 150 CD 40404 2317 4 we -PRON- PRP 40404 2317 5 have have VBP 40404 2317 6 an an DT 40404 2317 7 illustration illustration NN 40404 2317 8 of of IN 40404 2317 9 a a DT 40404 2317 10 very very RB 40404 2317 11 ancient ancient JJ 40404 2317 12 ripple ripple RB 40404 2317 13 - - HYPH 40404 2317 14 marked mark VBN 40404 2317 15 sand sand NN 40404 2317 16 consolidated consolidate VBN 40404 2317 17 to to IN 40404 2317 18 hard hard JJ 40404 2317 19 stone stone NN 40404 2317 20 , , , 40404 2317 21 uplifted uplift VBN 40404 2317 22 and and CC 40404 2317 23 set set VBN 40404 2317 24 on on IN 40404 2317 25 edge edge NN 40404 2317 26 by by IN 40404 2317 27 movements movement NNS 40404 2317 28 of of IN 40404 2317 29 the the DT 40404 2317 30 earth earth NN 40404 2317 31 's 's POS 40404 2317 32 crust crust NN 40404 2317 33 , , , 40404 2317 34 and and CC 40404 2317 35 exposed expose VBN 40404 2317 36 to to IN 40404 2317 37 open open JJ 40404 2317 38 air air NN 40404 2317 39 after after IN 40404 2317 40 long long JJ 40404 2317 41 erosion erosion NN 40404 2317 42 . . . 40404 2318 1 [ [ -LRB- 40404 2318 2 Illustration illustration NN 40404 2318 3 : : : 40404 2318 4 Fig Fig NNP 40404 2318 5 . . . 40404 2319 1 151 151 CD 40404 2319 2 . . . 40404 2320 1 Sun Sun NNP 40404 2320 2 Cracks Cracks NNP 40404 2320 3 ] ] -RRB- 40404 2320 4 = = SYM 40404 2320 5 Stratification.= Stratification.= NNP 40404 2320 6 For for IN 40404 2320 7 the the DT 40404 2320 8 most most JJS 40404 2320 9 part part NN 40404 2320 10 the the DT 40404 2320 11 sheet sheet NN 40404 2320 12 of of IN 40404 2320 13 sea sea NN 40404 2320 14 - - HYPH 40404 2320 15 laid lay VBN 40404 2320 16 waste waste NN 40404 2320 17 is be VBZ 40404 2320 18 hidden hide VBN 40404 2320 19 from from IN 40404 2320 20 our -PRON- PRP$ 40404 2320 21 sight sight NN 40404 2320 22 . . . 40404 2321 1 Where where WRB 40404 2321 2 its -PRON- PRP$ 40404 2321 3 edge edge NN 40404 2321 4 is be VBZ 40404 2321 5 exposed expose VBN 40404 2321 6 along along IN 40404 2321 7 the the DT 40404 2321 8 shore shore NN 40404 2321 9 we -PRON- PRP 40404 2321 10 may may MD 40404 2321 11 see see VB 40404 2321 12 the the DT 40404 2321 13 surface surface NN 40404 2321 14 markings marking NNS 40404 2321 15 which which WDT 40404 2321 16 have have VBP 40404 2321 17 just just RB 40404 2321 18 been be VBN 40404 2321 19 noticed notice VBN 40404 2321 20 . . . 40404 2322 1 Soundings sounding NNS 40404 2322 2 also also RB 40404 2322 3 , , , 40404 2322 4 and and CC 40404 2322 5 the the DT 40404 2322 6 observations observation NNS 40404 2322 7 made make VBN 40404 2322 8 in in IN 40404 2322 9 shallow shallow JJ 40404 2322 10 waters water NNS 40404 2322 11 by by IN 40404 2322 12 divers diver NNS 40404 2322 13 , , , 40404 2322 14 tell tell VB 40404 2322 15 something something NN 40404 2322 16 of of IN 40404 2322 17 its -PRON- PRP$ 40404 2322 18 surface surface NN 40404 2322 19 ; ; : 40404 2322 20 but but CC 40404 2322 21 to to TO 40404 2322 22 learn learn VB 40404 2322 23 more more JJR 40404 2322 24 of of IN 40404 2322 25 its -PRON- PRP$ 40404 2322 26 structures structure NNS 40404 2322 27 we -PRON- PRP 40404 2322 28 must must MD 40404 2322 29 study study VB 40404 2322 30 those those DT 40404 2322 31 ancient ancient JJ 40404 2322 32 sediments sediment NNS 40404 2322 33 which which WDT 40404 2322 34 have have VBP 40404 2322 35 been be VBN 40404 2322 36 lifted lift VBN 40404 2322 37 from from IN 40404 2322 38 the the DT 40404 2322 39 sea sea NN 40404 2322 40 and and CC 40404 2322 41 dissected dissect VBN 40404 2322 42 by by IN 40404 2322 43 subaërial subaërial JJ 40404 2322 44 agencies agency NNS 40404 2322 45 . . . 40404 2323 1 From from IN 40404 2323 2 them -PRON- PRP 40404 2323 3 we -PRON- PRP 40404 2323 4 ascertain ascertain VBP 40404 2323 5 that that IN 40404 2323 6 sea sea NN 40404 2323 7 deposits deposit NNS 40404 2323 8 are be VBP 40404 2323 9 stratified stratify VBN 40404 2323 10 . . . 40404 2324 1 They -PRON- PRP 40404 2324 2 lie lie VBP 40404 2324 3 in in IN 40404 2324 4 distinct distinct JJ 40404 2324 5 layers layer NNS 40404 2324 6 which which WDT 40404 2324 7 often often RB 40404 2324 8 differ differ VBP 40404 2324 9 from from IN 40404 2324 10 one one CD 40404 2324 11 another another DT 40404 2324 12 in in IN 40404 2324 13 thickness thickness NN 40404 2324 14 , , , 40404 2324 15 in in IN 40404 2324 16 size size NN 40404 2324 17 of of IN 40404 2324 18 particles particle NNS 40404 2324 19 , , , 40404 2324 20 and and CC 40404 2324 21 perhaps perhaps RB 40404 2324 22 in in IN 40404 2324 23 color color NN 40404 2324 24 . . . 40404 2325 1 They -PRON- PRP 40404 2325 2 are be VBP 40404 2325 3 parted part VBN 40404 2325 4 by by IN 40404 2325 5 bedding bed VBG 40404 2325 6 planes plane NNS 40404 2325 7 , , , 40404 2325 8 each each DT 40404 2325 9 of of IN 40404 2325 10 which which WDT 40404 2325 11 represents represent VBZ 40404 2325 12 either either CC 40404 2325 13 a a DT 40404 2325 14 change change NN 40404 2325 15 in in IN 40404 2325 16 material material NN 40404 2325 17 or or CC 40404 2325 18 a a DT 40404 2325 19 pause pause NN 40404 2325 20 during during IN 40404 2325 21 which which WDT 40404 2325 22 deposition deposition NN 40404 2325 23 ceased cease VBD 40404 2325 24 and and CC 40404 2325 25 the the DT 40404 2325 26 material material NN 40404 2325 27 of of IN 40404 2325 28 one one CD 40404 2325 29 layer layer NN 40404 2325 30 had have VBD 40404 2325 31 time time NN 40404 2325 32 to to TO 40404 2325 33 settle settle VB 40404 2325 34 and and CC 40404 2325 35 become become VB 40404 2325 36 somewhat somewhat RB 40404 2325 37 consolidated consolidated JJ 40404 2325 38 before before IN 40404 2325 39 the the DT 40404 2325 40 material material NN 40404 2325 41 of of IN 40404 2325 42 the the DT 40404 2325 43 next next JJ 40404 2325 44 was be VBD 40404 2325 45 laid lay VBN 40404 2325 46 upon upon IN 40404 2325 47 it -PRON- PRP 40404 2325 48 . . . 40404 2326 1 Stratification stratification NN 40404 2326 2 is be VBZ 40404 2326 3 thus thus RB 40404 2326 4 due due JJ 40404 2326 5 to to IN 40404 2326 6 intermittently intermittently RB 40404 2326 7 acting act VBG 40404 2326 8 forces force NNS 40404 2326 9 , , , 40404 2326 10 such such JJ 40404 2326 11 as as IN 40404 2326 12 the the DT 40404 2326 13 agitation agitation NN 40404 2326 14 of of IN 40404 2326 15 the the DT 40404 2326 16 water water NN 40404 2326 17 during during IN 40404 2326 18 storms storm NNS 40404 2326 19 , , , 40404 2326 20 the the DT 40404 2326 21 flow flow NN 40404 2326 22 and and CC 40404 2326 23 ebb ebb NN 40404 2326 24 of of IN 40404 2326 25 the the DT 40404 2326 26 tide tide NN 40404 2326 27 , , , 40404 2326 28 and and CC 40404 2326 29 the the DT 40404 2326 30 shifting shift VBG 40404 2326 31 channels channel NNS 40404 2326 32 of of IN 40404 2326 33 tidal tidal JJ 40404 2326 34 currents current NNS 40404 2326 35 . . . 40404 2327 1 Off off IN 40404 2327 2 the the DT 40404 2327 3 mouths mouth NNS 40404 2327 4 of of IN 40404 2327 5 rivers river NNS 40404 2327 6 , , , 40404 2327 7 stratification stratification NN 40404 2327 8 is be VBZ 40404 2327 9 also also RB 40404 2327 10 caused cause VBN 40404 2327 11 by by IN 40404 2327 12 the the DT 40404 2327 13 coarser coarser NN 40404 2327 14 and and CC 40404 2327 15 more more JJR 40404 2327 16 abundant abundant JJ 40404 2327 17 material material NN 40404 2327 18 brought bring VBN 40404 2327 19 down down RP 40404 2327 20 at at IN 40404 2327 21 time time NN 40404 2327 22 of of IN 40404 2327 23 floods flood NNS 40404 2327 24 being be VBG 40404 2327 25 laid lay VBN 40404 2327 26 on on IN 40404 2327 27 the the DT 40404 2327 28 finer fine JJR 40404 2327 29 silt silt NN 40404 2327 30 which which WDT 40404 2327 31 is be VBZ 40404 2327 32 discharged discharge VBN 40404 2327 33 during during IN 40404 2327 34 ordinary ordinary JJ 40404 2327 35 stages stage NNS 40404 2327 36 . . . 40404 2328 1 [ [ -LRB- 40404 2328 2 Illustration illustration NN 40404 2328 3 : : : 40404 2328 4 Fig Fig NNP 40404 2328 5 . . . 40404 2329 1 152 152 CD 40404 2329 2 . . . 40404 2330 1 The the DT 40404 2330 2 Under Under NNP 40404 2330 3 Side side NN 40404 2330 4 of of IN 40404 2330 5 a a DT 40404 2330 6 Layer Layer NNP 40404 2330 7 deposited deposit VBN 40404 2330 8 upon upon IN 40404 2330 9 a a DT 40404 2330 10 Sun Sun NNP 40404 2330 11 - - HYPH 40404 2330 12 Cracked Cracked NNP 40404 2330 13 Surface Surface NNP 40404 2330 14 , , , 40404 2330 15 showing show VBG 40404 2330 16 Casts Casts NNPS 40404 2330 17 of of IN 40404 2330 18 the the DT 40404 2330 19 Cracks Cracks NNP 40404 2330 20 ] ] -RRB- 40404 2330 21 [ [ -LRB- 40404 2330 22 Illustration illustration NN 40404 2330 23 : : : 40404 2330 24 Fig Fig NNP 40404 2330 25 . . . 40404 2331 1 153 153 CD 40404 2331 2 . . . 40404 2332 1 Rain Rain NNP 40404 2332 2 Prints Prints NNPS 40404 2332 3 ] ] -RRB- 40404 2332 4 How how WRB 40404 2332 5 stratified stratify VBN 40404 2332 6 deposits deposit NNS 40404 2332 7 are be VBP 40404 2332 8 built build VBN 40404 2332 9 up up RP 40404 2332 10 is be VBZ 40404 2332 11 well well RB 40404 2332 12 illustrated illustrate VBN 40404 2332 13 in in IN 40404 2332 14 the the DT 40404 2332 15 flats flat NNS 40404 2332 16 which which WDT 40404 2332 17 border border NN 40404 2332 18 estuaries estuary NNS 40404 2332 19 , , , 40404 2332 20 such such JJ 40404 2332 21 as as IN 40404 2332 22 the the DT 40404 2332 23 Bay Bay NNP 40404 2332 24 of of IN 40404 2332 25 Fundy Fundy NNP 40404 2332 26 . . . 40404 2333 1 Each each DT 40404 2333 2 advance advance NN 40404 2333 3 of of IN 40404 2333 4 the the DT 40404 2333 5 tide tide NN 40404 2333 6 spreads spread VBZ 40404 2333 7 a a DT 40404 2333 8 film film NN 40404 2333 9 of of IN 40404 2333 10 mud mud NN 40404 2333 11 , , , 40404 2333 12 which which WDT 40404 2333 13 dries dry VBZ 40404 2333 14 and and CC 40404 2333 15 hardens harden NNS 40404 2333 16 in in IN 40404 2333 17 the the DT 40404 2333 18 air air NN 40404 2333 19 during during IN 40404 2333 20 low low JJ 40404 2333 21 water water NN 40404 2333 22 before before IN 40404 2333 23 another another DT 40404 2333 24 film film NN 40404 2333 25 is be VBZ 40404 2333 26 laid lay VBN 40404 2333 27 upon upon IN 40404 2333 28 it -PRON- PRP 40404 2333 29 by by IN 40404 2333 30 the the DT 40404 2333 31 next next JJ 40404 2333 32 incoming incoming JJ 40404 2333 33 tidal tidal JJ 40404 2333 34 flood flood NN 40404 2333 35 . . . 40404 2334 1 In in IN 40404 2334 2 this this DT 40404 2334 3 way way NN 40404 2334 4 the the DT 40404 2334 5 flats flat NNS 40404 2334 6 have have VBP 40404 2334 7 been be VBN 40404 2334 8 covered cover VBN 40404 2334 9 by by IN 40404 2334 10 a a DT 40404 2334 11 clay clay NN 40404 2334 12 which which WDT 40404 2334 13 splits split VBZ 40404 2334 14 into into IN 40404 2334 15 leaves leave NNS 40404 2334 16 as as RB 40404 2334 17 thin thin JJ 40404 2334 18 as as IN 40404 2334 19 sheets sheet NNS 40404 2334 20 of of IN 40404 2334 21 paper paper NN 40404 2334 22 . . . 40404 2335 1 It -PRON- PRP 40404 2335 2 is be VBZ 40404 2335 3 in in IN 40404 2335 4 fine fine JJ 40404 2335 5 material material NN 40404 2335 6 , , , 40404 2335 7 such such JJ 40404 2335 8 as as IN 40404 2335 9 clays clay NNS 40404 2335 10 and and CC 40404 2335 11 shales shale NNS 40404 2335 12 and and CC 40404 2335 13 limestones limestone NNS 40404 2335 14 , , , 40404 2335 15 that that IN 40404 2335 16 the the DT 40404 2335 17 thinnest thin JJS 40404 2335 18 and and CC 40404 2335 19 most most RBS 40404 2335 20 uniform uniform JJ 40404 2335 21 layers layer NNS 40404 2335 22 , , , 40404 2335 23 as as RB 40404 2335 24 well well RB 40404 2335 25 as as IN 40404 2335 26 those those DT 40404 2335 27 of of IN 40404 2335 28 widest wide JJS 40404 2335 29 extent extent NN 40404 2335 30 , , , 40404 2335 31 occur occur VBP 40404 2335 32 . . . 40404 2336 1 On on IN 40404 2336 2 the the DT 40404 2336 3 other other JJ 40404 2336 4 hand hand NN 40404 2336 5 , , , 40404 2336 6 coarse coarse JJ 40404 2336 7 materials material NNS 40404 2336 8 are be VBP 40404 2336 9 commonly commonly RB 40404 2336 10 laid lay VBN 40404 2336 11 in in IN 40404 2336 12 thick thick JJ 40404 2336 13 beds bed NNS 40404 2336 14 , , , 40404 2336 15 which which WDT 40404 2336 16 soon soon RB 40404 2336 17 thin thin VBP 40404 2336 18 out out RP 40404 2336 19 seaward seaward NN 40404 2336 20 and and CC 40404 2336 21 give give VB 40404 2336 22 place place NN 40404 2336 23 to to IN 40404 2336 24 deposits deposit NNS 40404 2336 25 of of IN 40404 2336 26 finer fine JJR 40404 2336 27 stuff stuff NN 40404 2336 28 . . . 40404 2337 1 In in IN 40404 2337 2 a a DT 40404 2337 3 general general JJ 40404 2337 4 way way NN 40404 2337 5 strata strata NN 40404 2337 6 are be VBP 40404 2337 7 laid lay VBN 40404 2337 8 in in RP 40404 2337 9 well well NN 40404 2337 10 - - HYPH 40404 2337 11 nigh nigh NN 40404 2337 12 horizontal horizontal JJ 40404 2337 13 sheets sheet NNS 40404 2337 14 , , , 40404 2337 15 for for IN 40404 2337 16 the the DT 40404 2337 17 surface surface NN 40404 2337 18 on on IN 40404 2337 19 which which WDT 40404 2337 20 they -PRON- PRP 40404 2337 21 are be VBP 40404 2337 22 laid lay VBN 40404 2337 23 is be VBZ 40404 2337 24 generally generally RB 40404 2337 25 of of IN 40404 2337 26 very very RB 40404 2337 27 gentle gentle JJ 40404 2337 28 inclination inclination NN 40404 2337 29 . . . 40404 2338 1 Each each DT 40404 2338 2 stratum stratum NN 40404 2338 3 , , , 40404 2338 4 however however RB 40404 2338 5 , , , 40404 2338 6 is be VBZ 40404 2338 7 lenticular lenticular JJ 40404 2338 8 , , , 40404 2338 9 or or CC 40404 2338 10 lenslike lenslike JJ 40404 2338 11 , , , 40404 2338 12 in in IN 40404 2338 13 form form NN 40404 2338 14 , , , 40404 2338 15 having have VBG 40404 2338 16 an an DT 40404 2338 17 area area NN 40404 2338 18 where where WRB 40404 2338 19 it -PRON- PRP 40404 2338 20 is be VBZ 40404 2338 21 thickest thick JJS 40404 2338 22 , , , 40404 2338 23 and and CC 40404 2338 24 thinning thin VBG 40404 2338 25 out out RP 40404 2338 26 thence thence RB 40404 2338 27 to to IN 40404 2338 28 its -PRON- PRP$ 40404 2338 29 edges edge NNS 40404 2338 30 , , , 40404 2338 31 where where WRB 40404 2338 32 it -PRON- PRP 40404 2338 33 is be VBZ 40404 2338 34 overlapped overlap VBN 40404 2338 35 by by IN 40404 2338 36 strata strata NNP 40404 2338 37 similar similar JJ 40404 2338 38 in in IN 40404 2338 39 shape shape NN 40404 2338 40 . . . 40404 2339 1 [ [ -LRB- 40404 2339 2 Illustration illustration NN 40404 2339 3 : : : 40404 2339 4 Fig Fig NNP 40404 2339 5 . . . 40404 2340 1 154 154 CD 40404 2340 2 . . . 40404 2341 1 Cross Cross NNP 40404 2341 2 Bedding bed VBG 40404 2341 3 in in IN 40404 2341 4 Sandstone Sandstone NNP 40404 2341 5 , , , 40404 2341 6 England England NNP 40404 2341 7 ] ] -RRB- 40404 2341 8 = = VBZ 40404 2341 9 Cross Cross NNP 40404 2341 10 bedding.= bedding.= CD 40404 2341 11 There there EX 40404 2341 12 is be VBZ 40404 2341 13 an an DT 40404 2341 14 apparent apparent JJ 40404 2341 15 exception exception NN 40404 2341 16 to to IN 40404 2341 17 this this DT 40404 2341 18 rule rule NN 40404 2341 19 where where WRB 40404 2341 20 strata strata NN 40404 2341 21 whose whose WP$ 40404 2341 22 upper upper JJ 40404 2341 23 and and CC 40404 2341 24 lower low JJR 40404 2341 25 surfaces surface NNS 40404 2341 26 may may MD 40404 2341 27 be be VB 40404 2341 28 about about IN 40404 2341 29 horizontal horizontal JJ 40404 2341 30 are be VBP 40404 2341 31 made make VBN 40404 2341 32 up up RP 40404 2341 33 of of IN 40404 2341 34 layers layer NNS 40404 2341 35 inclined incline VBN 40404 2341 36 at at IN 40404 2341 37 angles angle NNS 40404 2341 38 which which WDT 40404 2341 39 may may MD 40404 2341 40 be be VB 40404 2341 41 as as RB 40404 2341 42 high high JJ 40404 2341 43 as as IN 40404 2341 44 the the DT 40404 2341 45 angle angle NN 40404 2341 46 of of IN 40404 2341 47 repose repose NN 40404 2341 48 . . . 40404 2342 1 In in IN 40404 2342 2 this this DT 40404 2342 3 case case NN 40404 2342 4 each each DT 40404 2342 5 stratum stratum NN 40404 2342 6 grew grow VBD 40404 2342 7 by by IN 40404 2342 8 the the DT 40404 2342 9 addition addition NN 40404 2342 10 along along IN 40404 2342 11 its -PRON- PRP$ 40404 2342 12 edge edge NN 40404 2342 13 of of IN 40404 2342 14 successive successive JJ 40404 2342 15 layers layer NNS 40404 2342 16 of of IN 40404 2342 17 sediment sediment NN 40404 2342 18 , , , 40404 2342 19 precisely precisely RB 40404 2342 20 as as IN 40404 2342 21 does do VBZ 40404 2342 22 a a DT 40404 2342 23 sand sand NN 40404 2342 24 bar bar NN 40404 2342 25 in in IN 40404 2342 26 a a DT 40404 2342 27 river river NN 40404 2342 28 , , , 40404 2342 29 the the DT 40404 2342 30 sand sand NN 40404 2342 31 being be VBG 40404 2342 32 pushed push VBN 40404 2342 33 continuously continuously RB 40404 2342 34 over over IN 40404 2342 35 the the DT 40404 2342 36 edge edge NN 40404 2342 37 and and CC 40404 2342 38 coming come VBG 40404 2342 39 to to TO 40404 2342 40 rest rest VB 40404 2342 41 on on IN 40404 2342 42 a a DT 40404 2342 43 sloping sloping NN 40404 2342 44 surface surface NN 40404 2342 45 . . . 40404 2343 1 Shoals shoal NNS 40404 2343 2 built build VBN 40404 2343 3 by by IN 40404 2343 4 strong strong JJ 40404 2343 5 and and CC 40404 2343 6 shifting shift VBG 40404 2343 7 tidal tidal JJ 40404 2343 8 currents current NNS 40404 2343 9 often often RB 40404 2343 10 show show VBP 40404 2343 11 successive successive JJ 40404 2343 12 strata strata NN 40404 2343 13 in in IN 40404 2343 14 which which WDT 40404 2343 15 the the DT 40404 2343 16 cross cross NN 40404 2343 17 bedding bedding NN 40404 2343 18 is be VBZ 40404 2343 19 inclined incline VBN 40404 2343 20 in in IN 40404 2343 21 different different JJ 40404 2343 22 directions direction NNS 40404 2343 23 . . . 40404 2344 1 = = NFP 40404 2344 2 Thickness Thickness NNP 40404 2344 3 of of IN 40404 2344 4 sea sea NN 40404 2344 5 deposits.= deposits.= NN 40404 2344 6 Remembering remember VBG 40404 2344 7 the the DT 40404 2344 8 vast vast JJ 40404 2344 9 amount amount NN 40404 2344 10 of of IN 40404 2344 11 material material NN 40404 2344 12 denuded denude VBN 40404 2344 13 from from IN 40404 2344 14 the the DT 40404 2344 15 land land NN 40404 2344 16 and and CC 40404 2344 17 deposited deposit VBN 40404 2344 18 offshore offshore RB 40404 2344 19 , , , 40404 2344 20 we -PRON- PRP 40404 2344 21 should should MD 40404 2344 22 expect expect VB 40404 2344 23 that that IN 40404 2344 24 with with IN 40404 2344 25 the the DT 40404 2344 26 lapse lapse NN 40404 2344 27 of of IN 40404 2344 28 time time NN 40404 2344 29 sea sea NN 40404 2344 30 deposits deposit NNS 40404 2344 31 would would MD 40404 2344 32 have have VB 40404 2344 33 grown grow VBN 40404 2344 34 to to IN 40404 2344 35 an an DT 40404 2344 36 enormous enormous JJ 40404 2344 37 thickness thickness NN 40404 2344 38 . . . 40404 2345 1 It -PRON- PRP 40404 2345 2 is be VBZ 40404 2345 3 a a DT 40404 2345 4 suggestive suggestive JJ 40404 2345 5 fact fact NN 40404 2345 6 that that IN 40404 2345 7 , , , 40404 2345 8 as as IN 40404 2345 9 a a DT 40404 2345 10 rule rule NN 40404 2345 11 , , , 40404 2345 12 the the DT 40404 2345 13 profile profile NN 40404 2345 14 of of IN 40404 2345 15 the the DT 40404 2345 16 ocean ocean NN 40404 2345 17 bed bed NN 40404 2345 18 is be VBZ 40404 2345 19 that that DT 40404 2345 20 of of IN 40404 2345 21 a a DT 40404 2345 22 soup soup NN 40404 2345 23 plate,--a plate,--a NNP 40404 2345 24 basin basin NN 40404 2345 25 surrounded surround VBN 40404 2345 26 by by IN 40404 2345 27 a a DT 40404 2345 28 flaring flare VBG 40404 2345 29 rim rim NN 40404 2345 30 . . . 40404 2346 1 On on IN 40404 2346 2 the the DT 40404 2346 3 _ _ NNP 40404 2346 4 continental continental JJ 40404 2346 5 shelf shelf NNP 40404 2346 6 _ _ NNP 40404 2346 7 , , , 40404 2346 8 as as IN 40404 2346 9 the the DT 40404 2346 10 rim rim NN 40404 2346 11 is be VBZ 40404 2346 12 called call VBN 40404 2346 13 , , , 40404 2346 14 the the DT 40404 2346 15 water water NN 40404 2346 16 is be VBZ 40404 2346 17 seldom seldom RB 40404 2346 18 more more JJR 40404 2346 19 than than IN 40404 2346 20 six six CD 40404 2346 21 hundred hundred CD 40404 2346 22 feet foot NNS 40404 2346 23 in in IN 40404 2346 24 depth depth NN 40404 2346 25 at at IN 40404 2346 26 the the DT 40404 2346 27 outer outer JJ 40404 2346 28 edge edge NN 40404 2346 29 , , , 40404 2346 30 and and CC 40404 2346 31 shallows shallow VBZ 40404 2346 32 gradually gradually RB 40404 2346 33 towards towards IN 40404 2346 34 shore shore NN 40404 2346 35 . . . 40404 2347 1 Along along IN 40404 2347 2 the the DT 40404 2347 3 eastern eastern JJ 40404 2347 4 coast coast NN 40404 2347 5 of of IN 40404 2347 6 the the DT 40404 2347 7 United United NNP 40404 2347 8 States States NNP 40404 2347 9 the the DT 40404 2347 10 continental continental JJ 40404 2347 11 shelf shelf NN 40404 2347 12 is be VBZ 40404 2347 13 from from IN 40404 2347 14 fifty fifty CD 40404 2347 15 to to IN 40404 2347 16 one one CD 40404 2347 17 hundred hundred CD 40404 2347 18 and and CC 40404 2347 19 more more JJR 40404 2347 20 miles mile NNS 40404 2347 21 in in IN 40404 2347 22 width width NN 40404 2347 23 ; ; , 40404 2347 24 on on IN 40404 2347 25 the the DT 40404 2347 26 Pacific Pacific NNP 40404 2347 27 coast coast NN 40404 2347 28 it -PRON- PRP 40404 2347 29 is be VBZ 40404 2347 30 much much RB 40404 2347 31 narrower narrow JJR 40404 2347 32 . . . 40404 2348 1 So so RB 40404 2348 2 far far RB 40404 2348 3 as as IN 40404 2348 4 it -PRON- PRP 40404 2348 5 is be VBZ 40404 2348 6 due due JJ 40404 2348 7 to to IN 40404 2348 8 upbuilding upbuilde VBG 40404 2348 9 , , , 40404 2348 10 a a DT 40404 2348 11 wide wide JJ 40404 2348 12 continental continental JJ 40404 2348 13 shelf shelf NN 40404 2348 14 , , , 40404 2348 15 such such JJ 40404 2348 16 as as IN 40404 2348 17 that that DT 40404 2348 18 of of IN 40404 2348 19 the the DT 40404 2348 20 Atlantic Atlantic NNP 40404 2348 21 coast coast NN 40404 2348 22 , , , 40404 2348 23 implies imply VBZ 40404 2348 24 a a DT 40404 2348 25 massive massive JJ 40404 2348 26 continental continental JJ 40404 2348 27 delta delta NN 40404 2348 28 thousands thousand NNS 40404 2348 29 of of IN 40404 2348 30 feet foot NNS 40404 2348 31 in in IN 40404 2348 32 thickness thickness NN 40404 2348 33 . . . 40404 2349 1 The the DT 40404 2349 2 coastal coastal JJ 40404 2349 3 plain plain NN 40404 2349 4 of of IN 40404 2349 5 the the DT 40404 2349 6 Atlantic atlantic JJ 40404 2349 7 states state NNS 40404 2349 8 may may MD 40404 2349 9 be be VB 40404 2349 10 regarded regard VBN 40404 2349 11 as as IN 40404 2349 12 the the DT 40404 2349 13 emerged emerge VBN 40404 2349 14 inner inner JJ 40404 2349 15 margin margin NN 40404 2349 16 of of IN 40404 2349 17 this this DT 40404 2349 18 shelf shelf NN 40404 2349 19 , , , 40404 2349 20 and and CC 40404 2349 21 borings boring NNS 40404 2349 22 made make VBN 40404 2349 23 along along IN 40404 2349 24 the the DT 40404 2349 25 coast coast NN 40404 2349 26 probe probe NN 40404 2349 27 it -PRON- PRP 40404 2349 28 to to IN 40404 2349 29 the the DT 40404 2349 30 depth depth NN 40404 2349 31 of of IN 40404 2349 32 as as RB 40404 2349 33 much much JJ 40404 2349 34 as as IN 40404 2349 35 three three CD 40404 2349 36 thousand thousand CD 40404 2349 37 feet foot NNS 40404 2349 38 without without IN 40404 2349 39 finding find VBG 40404 2349 40 the the DT 40404 2349 41 bottom bottom NN 40404 2349 42 of of IN 40404 2349 43 ancient ancient JJ 40404 2349 44 offshore offshore JJ 40404 2349 45 deposits deposit NNS 40404 2349 46 . . . 40404 2350 1 Continental continental JJ 40404 2350 2 shelves shelf NNS 40404 2350 3 may may MD 40404 2350 4 also also RB 40404 2350 5 be be VB 40404 2350 6 due due JJ 40404 2350 7 in in IN 40404 2350 8 part part NN 40404 2350 9 to to IN 40404 2350 10 a a DT 40404 2350 11 submergence submergence NN 40404 2350 12 of of IN 40404 2350 13 the the DT 40404 2350 14 outer outer JJ 40404 2350 15 margin margin NN 40404 2350 16 of of IN 40404 2350 17 a a DT 40404 2350 18 continental continental JJ 40404 2350 19 plateau plateau NN 40404 2350 20 and and CC 40404 2350 21 to to IN 40404 2350 22 marine marine JJ 40404 2350 23 abrasion abrasion NN 40404 2350 24 . . . 40404 2351 1 = = NFP 40404 2351 2 Deposition deposition NN 40404 2351 3 of of IN 40404 2351 4 sediments sediment NNS 40404 2351 5 and and CC 40404 2351 6 subsidence.= subsidence.= VBN 40404 2351 7 The the DT 40404 2351 8 stratified stratified JJ 40404 2351 9 rocks rock NNS 40404 2351 10 of of IN 40404 2351 11 the the DT 40404 2351 12 land land NN 40404 2351 13 show show NN 40404 2351 14 in in IN 40404 2351 15 many many JJ 40404 2351 16 places place NNS 40404 2351 17 ancient ancient JJ 40404 2351 18 sediments sediment NNS 40404 2351 19 which which WDT 40404 2351 20 reach reach VBP 40404 2351 21 a a DT 40404 2351 22 thickness thickness NN 40404 2351 23 which which WDT 40404 2351 24 is be VBZ 40404 2351 25 measured measure VBN 40404 2351 26 in in IN 40404 2351 27 miles mile NNS 40404 2351 28 , , , 40404 2351 29 and and CC 40404 2351 30 which which WDT 40404 2351 31 are be VBP 40404 2351 32 yet yet RB 40404 2351 33 the the DT 40404 2351 34 product product NN 40404 2351 35 of of IN 40404 2351 36 well well JJ 40404 2351 37 - - HYPH 40404 2351 38 nigh nigh NN 40404 2351 39 continuous continuous JJ 40404 2351 40 deposition deposition NN 40404 2351 41 . . . 40404 2352 1 Such such JJ 40404 2352 2 strata stratum NNS 40404 2352 3 may may MD 40404 2352 4 prove prove VB 40404 2352 5 by by IN 40404 2352 6 their -PRON- PRP$ 40404 2352 7 fossils fossil NNS 40404 2352 8 and and CC 40404 2352 9 by by IN 40404 2352 10 their -PRON- PRP$ 40404 2352 11 composition composition NN 40404 2352 12 and and CC 40404 2352 13 structure structure NN 40404 2352 14 that that IN 40404 2352 15 they -PRON- PRP 40404 2352 16 were be VBD 40404 2352 17 all all DT 40404 2352 18 laid lay VBN 40404 2352 19 offshore offshore RB 40404 2352 20 in in IN 40404 2352 21 shallow shallow JJ 40404 2352 22 water water NN 40404 2352 23 . . . 40404 2353 1 We -PRON- PRP 40404 2353 2 must must MD 40404 2353 3 infer infer VB 40404 2353 4 that that IN 40404 2353 5 , , , 40404 2353 6 during during IN 40404 2353 7 the the DT 40404 2353 8 vast vast JJ 40404 2353 9 length length NN 40404 2353 10 of of IN 40404 2353 11 time time NN 40404 2353 12 recorded record VBN 40404 2353 13 by by IN 40404 2353 14 the the DT 40404 2353 15 enormous enormous JJ 40404 2353 16 pile pile NN 40404 2353 17 , , , 40404 2353 18 the the DT 40404 2353 19 floor floor NN 40404 2353 20 of of IN 40404 2353 21 the the DT 40404 2353 22 sea sea NN 40404 2353 23 along along IN 40404 2353 24 the the DT 40404 2353 25 coast coast NN 40404 2353 26 was be VBD 40404 2353 27 slowly slowly RB 40404 2353 28 sinking sink VBG 40404 2353 29 , , , 40404 2353 30 and and CC 40404 2353 31 that that IN 40404 2353 32 the the DT 40404 2353 33 trough trough NN 40404 2353 34 was be VBD 40404 2353 35 constantly constantly RB 40404 2353 36 being be VBG 40404 2353 37 filled fill VBN 40404 2353 38 , , , 40404 2353 39 foot foot NN 40404 2353 40 by by IN 40404 2353 41 foot foot NN 40404 2353 42 , , , 40404 2353 43 as as RB 40404 2353 44 fast fast RB 40404 2353 45 as as IN 40404 2353 46 it -PRON- PRP 40404 2353 47 was be VBD 40404 2353 48 depressed depressed JJ 40404 2353 49 . . . 40404 2354 1 Such such JJ 40404 2354 2 gradual gradual JJ 40404 2354 3 , , , 40404 2354 4 quiet quiet JJ 40404 2354 5 movements movement NNS 40404 2354 6 of of IN 40404 2354 7 the the DT 40404 2354 8 earth earth NN 40404 2354 9 's 's POS 40404 2354 10 crust crust NN 40404 2354 11 not not RB 40404 2354 12 only only RB 40404 2354 13 modify modify VB 40404 2354 14 the the DT 40404 2354 15 outline outline NN 40404 2354 16 of of IN 40404 2354 17 coasts coast NNS 40404 2354 18 , , , 40404 2354 19 as as IN 40404 2354 20 we -PRON- PRP 40404 2354 21 have have VBP 40404 2354 22 seen see VBN 40404 2354 23 , , , 40404 2354 24 but but CC 40404 2354 25 are be VBP 40404 2354 26 of of IN 40404 2354 27 far far RB 40404 2354 28 greater great JJR 40404 2354 29 geological geological JJ 40404 2354 30 importance importance NN 40404 2354 31 in in IN 40404 2354 32 that that DT 40404 2354 33 they -PRON- PRP 40404 2354 34 permit permit VBP 40404 2354 35 the the DT 40404 2354 36 making making NN 40404 2354 37 of of IN 40404 2354 38 immense immense JJ 40404 2354 39 deposits deposit NNS 40404 2354 40 of of IN 40404 2354 41 stratified stratified JJ 40404 2354 42 rock rock NN 40404 2354 43 . . . 40404 2355 1 A a DT 40404 2355 2 slow slow JJ 40404 2355 3 subsidence subsidence NN 40404 2355 4 continued continue VBN 40404 2355 5 during during IN 40404 2355 6 long long JJ 40404 2355 7 time time NN 40404 2355 8 is be VBZ 40404 2355 9 recorded record VBN 40404 2355 10 also also RB 40404 2355 11 in in IN 40404 2355 12 the the DT 40404 2355 13 succession succession NN 40404 2355 14 of of IN 40404 2355 15 the the DT 40404 2355 16 various various JJ 40404 2355 17 kinds kind NNS 40404 2355 18 of of IN 40404 2355 19 rock rock NN 40404 2355 20 that that WDT 40404 2355 21 come come VBP 40404 2355 22 to to TO 40404 2355 23 be be VB 40404 2355 24 deposited deposit VBN 40404 2355 25 in in IN 40404 2355 26 the the DT 40404 2355 27 same same JJ 40404 2355 28 area area NN 40404 2355 29 . . . 40404 2356 1 As as IN 40404 2356 2 the the DT 40404 2356 3 sea sea NN 40404 2356 4 transgresses transgress VBZ 40404 2356 5 the the DT 40404 2356 6 land land NN 40404 2356 7 , , , 40404 2356 8 i.e. i.e. FW 40404 2357 1 encroaches encroache NNS 40404 2357 2 upon upon IN 40404 2357 3 it -PRON- PRP 40404 2357 4 , , , 40404 2357 5 any any DT 40404 2357 6 given give VBN 40404 2357 7 part part NN 40404 2357 8 of of IN 40404 2357 9 the the DT 40404 2357 10 sea sea NN 40404 2357 11 bottom bottom NN 40404 2357 12 is be VBZ 40404 2357 13 brought bring VBN 40404 2357 14 farther far RBR 40404 2357 15 and and CC 40404 2357 16 farther far RBR 40404 2357 17 from from IN 40404 2357 18 the the DT 40404 2357 19 shore shore NN 40404 2357 20 . . . 40404 2358 1 The the DT 40404 2358 2 basal basal NN 40404 2358 3 conglomerate conglomerate NN 40404 2358 4 formed form VBN 40404 2358 5 by by IN 40404 2358 6 bowlder bowlder NN 40404 2358 7 and and CC 40404 2358 8 pebble pebble JJ 40404 2358 9 beaches beach NNS 40404 2358 10 comes come VBZ 40404 2358 11 to to TO 40404 2358 12 be be VB 40404 2358 13 covered cover VBN 40404 2358 14 with with IN 40404 2358 15 sheets sheet NNS 40404 2358 16 of of IN 40404 2358 17 sand sand NN 40404 2358 18 , , , 40404 2358 19 and and CC 40404 2358 20 these these DT 40404 2358 21 with with IN 40404 2358 22 layers layer NNS 40404 2358 23 of of IN 40404 2358 24 mud mud NN 40404 2358 25 as as IN 40404 2358 26 the the DT 40404 2358 27 sea sea NN 40404 2358 28 becomes become VBZ 40404 2358 29 deeper deep JJR 40404 2358 30 and and CC 40404 2358 31 the the DT 40404 2358 32 shore shore NN 40404 2358 33 more more RBR 40404 2358 34 remote remote JJ 40404 2358 35 ; ; : 40404 2358 36 while while IN 40404 2358 37 deposits deposit NNS 40404 2358 38 of of IN 40404 2358 39 limestone limestone NN 40404 2358 40 are be VBP 40404 2358 41 made make VBN 40404 2358 42 when when WRB 40404 2358 43 at at IN 40404 2358 44 last last JJ 40404 2358 45 no no DT 40404 2358 46 waste waste NN 40404 2358 47 is be VBZ 40404 2358 48 brought bring VBN 40404 2358 49 to to IN 40404 2358 50 the the DT 40404 2358 51 place place NN 40404 2358 52 from from IN 40404 2358 53 the the DT 40404 2358 54 now now RB 40404 2358 55 distant distant JJ 40404 2358 56 land land NN 40404 2358 57 , , , 40404 2358 58 and and CC 40404 2358 59 the the DT 40404 2358 60 water water NN 40404 2358 61 is be VBZ 40404 2358 62 left leave VBN 40404 2358 63 clear clear JJ 40404 2358 64 for for IN 40404 2358 65 the the DT 40404 2358 66 growth growth NN 40404 2358 67 of of IN 40404 2358 68 mollusks mollusk NNS 40404 2358 69 and and CC 40404 2358 70 other other JJ 40404 2358 71 lime lime RB 40404 2358 72 - - HYPH 40404 2358 73 secreting secrete VBG 40404 2358 74 organisms organism NNS 40404 2358 75 . . . 40404 2359 1 [ [ -LRB- 40404 2359 2 Illustration illustration NN 40404 2359 3 : : : 40404 2359 4 Fig Fig NNP 40404 2359 5 . . . 40404 2360 1 155 155 CD 40404 2360 2 . . . 40404 2361 1 Succession succession NN 40404 2361 2 of of IN 40404 2361 3 Deposits deposit NNS 40404 2361 4 recording record VBG 40404 2361 5 a a DT 40404 2361 6 Transgressing Transgressing NNP 40404 2361 7 Sea Sea NNP 40404 2361 8 _ _ NNP 40404 2361 9 c c NNP 40404 2361 10 _ _ NNP 40404 2361 11 , , , 40404 2361 12 conglomerate conglomerate NN 40404 2361 13 ; ; : 40404 2361 14 _ _ NNP 40404 2361 15 ss ss NNP 40404 2361 16 _ _ NNP 40404 2361 17 , , , 40404 2361 18 sandstone sandstone NN 40404 2361 19 ; ; : 40404 2361 20 _ _ NNP 40404 2361 21 sh sh NNP 40404 2361 22 _ _ NNP 40404 2361 23 , , , 40404 2361 24 shale shale NNP 40404 2361 25 ; ; : 40404 2361 26 _ _ NNP 40404 2361 27 lm lm NNP 40404 2361 28 _ _ NNP 40404 2361 29 , , , 40404 2361 30 limestone limestone NN 40404 2361 31 ] ] -RRB- 40404 2361 32 = = NN 40404 2361 33 Rate rate NN 40404 2361 34 of of IN 40404 2361 35 deposition.= deposition.= CD 40404 2361 36 As as IN 40404 2361 37 deposition deposition NN 40404 2361 38 in in IN 40404 2361 39 the the DT 40404 2361 40 sea sea NN 40404 2361 41 corresponds correspond VBZ 40404 2361 42 to to IN 40404 2361 43 denudation denudation NN 40404 2361 44 on on IN 40404 2361 45 the the DT 40404 2361 46 land land NN 40404 2361 47 , , , 40404 2361 48 we -PRON- PRP 40404 2361 49 are be VBP 40404 2361 50 able able JJ 40404 2361 51 to to TO 40404 2361 52 make make VB 40404 2361 53 a a DT 40404 2361 54 general general JJ 40404 2361 55 estimate estimate NN 40404 2361 56 of of IN 40404 2361 57 the the DT 40404 2361 58 rate rate NN 40404 2361 59 at at IN 40404 2361 60 which which WDT 40404 2361 61 the the DT 40404 2361 62 former former JJ 40404 2361 63 process process NN 40404 2361 64 is be VBZ 40404 2361 65 going go VBG 40404 2361 66 on on RP 40404 2361 67 . . . 40404 2362 1 Leaving leave VBG 40404 2362 2 out out IN 40404 2362 3 of of IN 40404 2362 4 account account NN 40404 2362 5 the the DT 40404 2362 6 soluble soluble JJ 40404 2362 7 matter matter NN 40404 2362 8 removed remove VBN 40404 2362 9 , , , 40404 2362 10 the the DT 40404 2362 11 Mississippi Mississippi NNP 40404 2362 12 is be VBZ 40404 2362 13 lowering lower VBG 40404 2362 14 its -PRON- PRP$ 40404 2362 15 basin basin NN 40404 2362 16 at at IN 40404 2362 17 the the DT 40404 2362 18 rate rate NN 40404 2362 19 of of IN 40404 2362 20 one one CD 40404 2362 21 foot foot NN 40404 2362 22 in in IN 40404 2362 23 five five CD 40404 2362 24 thousand thousand CD 40404 2362 25 years year NNS 40404 2362 26 , , , 40404 2362 27 and and CC 40404 2362 28 we -PRON- PRP 40404 2362 29 may may MD 40404 2362 30 assume assume VB 40404 2362 31 this this DT 40404 2362 32 as as IN 40404 2362 33 the the DT 40404 2362 34 average average JJ 40404 2362 35 rate rate NN 40404 2362 36 at at IN 40404 2362 37 which which WDT 40404 2362 38 the the DT 40404 2362 39 earth earth NN 40404 2362 40 's 's POS 40404 2362 41 land land NN 40404 2362 42 surface surface NN 40404 2362 43 of of IN 40404 2362 44 fifty fifty CD 40404 2362 45 - - HYPH 40404 2362 46 seven seven CD 40404 2362 47 million million CD 40404 2362 48 square square JJ 40404 2362 49 miles mile NNS 40404 2362 50 is be VBZ 40404 2362 51 now now RB 40404 2362 52 being be VBG 40404 2362 53 denuded denude VBN 40404 2362 54 by by IN 40404 2362 55 the the DT 40404 2362 56 removal removal NN 40404 2362 57 of of IN 40404 2362 58 its -PRON- PRP$ 40404 2362 59 mechanical mechanical JJ 40404 2362 60 waste waste NN 40404 2362 61 . . . 40404 2363 1 But but CC 40404 2363 2 sediments sediment NNS 40404 2363 3 from from IN 40404 2363 4 the the DT 40404 2363 5 land land NN 40404 2363 6 are be VBP 40404 2363 7 spread spread VBN 40404 2363 8 within within IN 40404 2363 9 a a DT 40404 2363 10 zone zone NN 40404 2363 11 but but CC 40404 2363 12 two two CD 40404 2363 13 or or CC 40404 2363 14 three three CD 40404 2363 15 hundred hundred CD 40404 2363 16 miles mile NNS 40404 2363 17 in in IN 40404 2363 18 width width NN 40404 2363 19 along along IN 40404 2363 20 the the DT 40404 2363 21 margin margin NN 40404 2363 22 of of IN 40404 2363 23 the the DT 40404 2363 24 continents continent NNS 40404 2363 25 , , , 40404 2363 26 a a DT 40404 2363 27 line line NN 40404 2363 28 one one CD 40404 2363 29 hundred hundred CD 40404 2363 30 thousand thousand CD 40404 2363 31 miles mile NNS 40404 2363 32 long long JJ 40404 2363 33 . . . 40404 2364 1 As as IN 40404 2364 2 the the DT 40404 2364 3 area area NN 40404 2364 4 of of IN 40404 2364 5 deposition deposition NN 40404 2364 6 -- -- : 40404 2364 7 about about RB 40404 2364 8 twenty twenty CD 40404 2364 9 - - HYPH 40404 2364 10 five five CD 40404 2364 11 million million CD 40404 2364 12 square square JJ 40404 2364 13 miles mile NNS 40404 2364 14 -- -- : 40404 2364 15 is be VBZ 40404 2364 16 about about RB 40404 2364 17 one one CD 40404 2364 18 half half NN 40404 2364 19 the the DT 40404 2364 20 area area NN 40404 2364 21 of of IN 40404 2364 22 denudation denudation NN 40404 2364 23 , , , 40404 2364 24 the the DT 40404 2364 25 average average JJ 40404 2364 26 rate rate NN 40404 2364 27 of of IN 40404 2364 28 deposition deposition NN 40404 2364 29 must must MD 40404 2364 30 be be VB 40404 2364 31 twice twice PDT 40404 2364 32 the the DT 40404 2364 33 average average JJ 40404 2364 34 rate rate NN 40404 2364 35 of of IN 40404 2364 36 denudation denudation NN 40404 2364 37 , , , 40404 2364 38 i.e. i.e. FW 40404 2365 1 about about RB 40404 2365 2 one one CD 40404 2365 3 foot foot NN 40404 2365 4 in in IN 40404 2365 5 twenty twenty CD 40404 2365 6 - - HYPH 40404 2365 7 five five CD 40404 2365 8 hundred hundred CD 40404 2365 9 years year NNS 40404 2365 10 . . . 40404 2366 1 If if IN 40404 2366 2 some some DT 40404 2366 3 deposits deposit NNS 40404 2366 4 are be VBP 40404 2366 5 made make VBN 40404 2366 6 much much RB 40404 2366 7 more more RBR 40404 2366 8 rapidly rapidly RB 40404 2366 9 than than IN 40404 2366 10 this this DT 40404 2366 11 , , , 40404 2366 12 others other NNS 40404 2366 13 are be VBP 40404 2366 14 made make VBN 40404 2366 15 much much RB 40404 2366 16 more more RBR 40404 2366 17 slowly slowly RB 40404 2366 18 . . . 40404 2367 1 If if IN 40404 2367 2 they -PRON- PRP 40404 2367 3 were be VBD 40404 2367 4 laid lay VBN 40404 2367 5 no no RB 40404 2367 6 faster fast RBR 40404 2367 7 than than IN 40404 2367 8 the the DT 40404 2367 9 present present JJ 40404 2367 10 average average JJ 40404 2367 11 rate rate NN 40404 2367 12 , , , 40404 2367 13 the the DT 40404 2367 14 strata strata NN 40404 2367 15 of of IN 40404 2367 16 ancient ancient JJ 40404 2367 17 sea sea NN 40404 2367 18 deposits deposit NNS 40404 2367 19 exposed expose VBN 40404 2367 20 in in IN 40404 2367 21 a a DT 40404 2367 22 quarry quarry NN 40404 2367 23 fifty fifty CD 40404 2367 24 feet foot NNS 40404 2367 25 deep deep JJ 40404 2367 26 represent represent VBP 40404 2367 27 a a DT 40404 2367 28 lapse lapse NN 40404 2367 29 of of IN 40404 2367 30 at at RB 40404 2367 31 least least RBS 40404 2367 32 one one CD 40404 2367 33 hundred hundred CD 40404 2367 34 and and CC 40404 2367 35 twenty twenty CD 40404 2367 36 - - HYPH 40404 2367 37 five five CD 40404 2367 38 thousand thousand CD 40404 2367 39 years year NNS 40404 2367 40 , , , 40404 2367 41 and and CC 40404 2367 42 those those DT 40404 2367 43 of of IN 40404 2367 44 a a DT 40404 2367 45 formation formation NN 40404 2367 46 five five CD 40404 2367 47 hundred hundred CD 40404 2367 48 feet foot NNS 40404 2367 49 thick thick JJ 40404 2367 50 required require VBN 40404 2367 51 for for IN 40404 2367 52 their -PRON- PRP$ 40404 2367 53 accumulation accumulation NN 40404 2367 54 one one CD 40404 2367 55 million million CD 40404 2367 56 two two CD 40404 2367 57 hundred hundred CD 40404 2367 58 and and CC 40404 2367 59 fifty fifty CD 40404 2367 60 thousand thousand CD 40404 2367 61 years year NNS 40404 2367 62 . . . 40404 2368 1 [ [ -LRB- 40404 2368 2 Illustration illustration NN 40404 2368 3 : : : 40404 2368 4 Fig Fig NNP 40404 2368 5 . . . 40404 2369 1 156 156 CD 40404 2369 2 . . . 40404 2370 1 Thick thick JJ 40404 2370 2 Offshore Offshore NNP 40404 2370 3 Deposits deposit NNS 40404 2370 4 of of IN 40404 2370 5 Coarse Coarse NNP 40404 2370 6 Waste Waste NNP 40404 2370 7 recording record VBG 40404 2370 8 the the DT 40404 2370 9 Presence Presence NNP 40404 2370 10 of of IN 40404 2370 11 a a DT 40404 2370 12 Young Young NNP 40404 2370 13 Mountain Mountain NNP 40404 2370 14 Range Range NNP 40404 2370 15 near near IN 40404 2370 16 Shore shore NN 40404 2370 17 ] ] -RRB- 40404 2370 18 = = NFP 40404 2370 19 The the DT 40404 2370 20 sedimentary sedimentary JJ 40404 2370 21 record record NN 40404 2370 22 and and CC 40404 2370 23 the the DT 40404 2370 24 denudation denudation NN 40404 2370 25 cycle.= cycle.= VBN 40404 2370 26 We -PRON- PRP 40404 2370 27 have have VBP 40404 2370 28 seen see VBN 40404 2370 29 that that IN 40404 2370 30 the the DT 40404 2370 31 successive successive JJ 40404 2370 32 stages stage NNS 40404 2370 33 in in IN 40404 2370 34 a a DT 40404 2370 35 cycle cycle NN 40404 2370 36 of of IN 40404 2370 37 denudation denudation NN 40404 2370 38 , , , 40404 2370 39 such such JJ 40404 2370 40 as as IN 40404 2370 41 that that DT 40404 2370 42 by by IN 40404 2370 43 which which WDT 40404 2370 44 a a DT 40404 2370 45 land land NN 40404 2370 46 mass mass NN 40404 2370 47 of of IN 40404 2370 48 lofty lofty JJ 40404 2370 49 mountains mountain NNS 40404 2370 50 is be VBZ 40404 2370 51 worn wear VBN 40404 2370 52 to to IN 40404 2370 53 low low JJ 40404 2370 54 plains plain NNS 40404 2370 55 , , , 40404 2370 56 are be VBP 40404 2370 57 marked mark VBN 40404 2370 58 each each DT 40404 2370 59 by by IN 40404 2370 60 its -PRON- PRP$ 40404 2370 61 own own JJ 40404 2370 62 peculiar peculiar JJ 40404 2370 63 land land NN 40404 2370 64 forms form NNS 40404 2370 65 , , , 40404 2370 66 and and CC 40404 2370 67 that that IN 40404 2370 68 the the DT 40404 2370 69 forms form NNS 40404 2370 70 of of IN 40404 2370 71 the the DT 40404 2370 72 earlier early JJR 40404 2370 73 stages stage NNS 40404 2370 74 are be VBP 40404 2370 75 more more RBR 40404 2370 76 or or CC 40404 2370 77 less less RBR 40404 2370 78 completely completely RB 40404 2370 79 effaced efface VBN 40404 2370 80 as as IN 40404 2370 81 the the DT 40404 2370 82 cycle cycle NN 40404 2370 83 draws draw VBZ 40404 2370 84 toward toward IN 40404 2370 85 an an DT 40404 2370 86 end end NN 40404 2370 87 . . . 40404 2371 1 Far far RB 40404 2371 2 more more RBR 40404 2371 3 lasting lasting JJ 40404 2371 4 records record NNS 40404 2371 5 of of IN 40404 2371 6 each each DT 40404 2371 7 stage stage NN 40404 2371 8 are be VBP 40404 2371 9 left leave VBN 40404 2371 10 in in IN 40404 2371 11 the the DT 40404 2371 12 sedimentary sedimentary JJ 40404 2371 13 deposits deposit NNS 40404 2371 14 of of IN 40404 2371 15 the the DT 40404 2371 16 continental continental JJ 40404 2371 17 delta delta NN 40404 2371 18 . . . 40404 2372 1 Thus thus RB 40404 2372 2 , , , 40404 2372 3 in in IN 40404 2372 4 the the DT 40404 2372 5 youth youth NN 40404 2372 6 of of IN 40404 2372 7 such such PDT 40404 2372 8 a a DT 40404 2372 9 land land NN 40404 2372 10 mass mass NN 40404 2372 11 as as IN 40404 2372 12 we -PRON- PRP 40404 2372 13 have have VBP 40404 2372 14 mentioned mention VBN 40404 2372 15 , , , 40404 2372 16 torrential torrential JJ 40404 2372 17 streams stream NNS 40404 2372 18 flowing flow VBG 40404 2372 19 down down IN 40404 2372 20 the the DT 40404 2372 21 steep steep JJ 40404 2372 22 mountain mountain NN 40404 2372 23 sides side NNS 40404 2372 24 deliver deliver VBP 40404 2372 25 to to IN 40404 2372 26 the the DT 40404 2372 27 adjacent adjacent JJ 40404 2372 28 sea sea NN 40404 2372 29 their -PRON- PRP$ 40404 2372 30 heavy heavy JJ 40404 2372 31 loads load NNS 40404 2372 32 of of IN 40404 2372 33 coarse coarse JJ 40404 2372 34 waste waste NN 40404 2372 35 , , , 40404 2372 36 and and CC 40404 2372 37 thick thick JJ 40404 2372 38 offshore offshore JJ 40404 2372 39 deposits deposit NNS 40404 2372 40 of of IN 40404 2372 41 sand sand NN 40404 2372 42 and and CC 40404 2372 43 gravel gravel NN 40404 2372 44 ( ( -LRB- 40404 2372 45 Fig fig NN 40404 2372 46 . . . 40404 2373 1 156 156 CD 40404 2373 2 ) ) -RRB- 40404 2373 3 record record VB 40404 2373 4 the the DT 40404 2373 5 high high JJ 40404 2373 6 elevation elevation NN 40404 2373 7 of of IN 40404 2373 8 the the DT 40404 2373 9 bordering bordering NN 40404 2373 10 land land NN 40404 2373 11 . . . 40404 2374 1 As as IN 40404 2374 2 the the DT 40404 2374 3 land land NN 40404 2374 4 is be VBZ 40404 2374 5 worn wear VBN 40404 2374 6 to to IN 40404 2374 7 lower low JJR 40404 2374 8 levels level NNS 40404 2374 9 , , , 40404 2374 10 the the DT 40404 2374 11 amount amount NN 40404 2374 12 and and CC 40404 2374 13 coarseness coarseness NN 40404 2374 14 of of IN 40404 2374 15 the the DT 40404 2374 16 waste waste NN 40404 2374 17 brought bring VBN 40404 2374 18 to to IN 40404 2374 19 the the DT 40404 2374 20 sea sea NN 40404 2374 21 diminishes diminishe NNS 40404 2374 22 , , , 40404 2374 23 until until IN 40404 2374 24 the the DT 40404 2374 25 sluggish sluggish JJ 40404 2374 26 streams stream NNS 40404 2374 27 carry carry VBP 40404 2374 28 only only RB 40404 2374 29 a a DT 40404 2374 30 fine fine JJ 40404 2374 31 silt silt NN 40404 2374 32 which which WDT 40404 2374 33 settles settle VBZ 40404 2374 34 on on IN 40404 2374 35 the the DT 40404 2374 36 ocean ocean NN 40404 2374 37 floor floor NN 40404 2374 38 near near RB 40404 2374 39 to to TO 40404 2374 40 land land VB 40404 2374 41 in in IN 40404 2374 42 wide wide JJ 40404 2374 43 sheets sheet NNS 40404 2374 44 of of IN 40404 2374 45 mud mud NN 40404 2374 46 which which WDT 40404 2374 47 harden harden VBZ 40404 2374 48 into into IN 40404 2374 49 shale shale NNP 40404 2374 50 . . . 40404 2375 1 At at IN 40404 2375 2 last last JJ 40404 2375 3 , , , 40404 2375 4 in in IN 40404 2375 5 the the DT 40404 2375 6 old old JJ 40404 2375 7 age age NN 40404 2375 8 of of IN 40404 2375 9 the the DT 40404 2375 10 region region NN 40404 2375 11 ( ( -LRB- 40404 2375 12 Fig fig NN 40404 2375 13 . . . 40404 2376 1 157 157 CD 40404 2376 2 ) ) -RRB- 40404 2376 3 , , , 40404 2376 4 its -PRON- PRP$ 40404 2376 5 low low JJ 40404 2376 6 plains plain NNS 40404 2376 7 contribute contribute VBP 40404 2376 8 little little JJ 40404 2376 9 to to IN 40404 2376 10 the the DT 40404 2376 11 sea sea NN 40404 2376 12 except except IN 40404 2376 13 the the DT 40404 2376 14 soluble soluble JJ 40404 2376 15 elements element NNS 40404 2376 16 of of IN 40404 2376 17 the the DT 40404 2376 18 rocks rock NNS 40404 2376 19 , , , 40404 2376 20 and and CC 40404 2376 21 in in IN 40404 2376 22 the the DT 40404 2376 23 clear clear JJ 40404 2376 24 waters water NNS 40404 2376 25 near near IN 40404 2376 26 the the DT 40404 2376 27 land land NN 40404 2376 28 lime lime NN 40404 2376 29 - - HYPH 40404 2376 30 secreting secrete VBG 40404 2376 31 organisms organism NNS 40404 2376 32 flourish flourish VBP 40404 2376 33 and and CC 40404 2376 34 their -PRON- PRP$ 40404 2376 35 remains remain NNS 40404 2376 36 accumulate accumulate VBP 40404 2376 37 in in IN 40404 2376 38 beds bed NNS 40404 2376 39 of of IN 40404 2376 40 limestone limestone NN 40404 2376 41 . . . 40404 2377 1 When when WRB 40404 2377 2 long long RB 40404 2377 3 - - HYPH 40404 2377 4 weathered weather VBN 40404 2377 5 lands land NNS 40404 2377 6 mantled mantle VBD 40404 2377 7 with with IN 40404 2377 8 deep deep JJ 40404 2377 9 , , , 40404 2377 10 well well RB 40404 2377 11 - - HYPH 40404 2377 12 oxidized oxidize VBN 40404 2377 13 waste waste NN 40404 2377 14 are be VBP 40404 2377 15 uplifted uplift VBN 40404 2377 16 by by IN 40404 2377 17 a a DT 40404 2377 18 gradual gradual JJ 40404 2377 19 movement movement NN 40404 2377 20 of of IN 40404 2377 21 the the DT 40404 2377 22 earth earth NN 40404 2377 23 's 's POS 40404 2377 24 crust crust NN 40404 2377 25 , , , 40404 2377 26 and and CC 40404 2377 27 the the DT 40404 2377 28 mantle mantle NN 40404 2377 29 is be VBZ 40404 2377 30 rapidly rapidly RB 40404 2377 31 stripped strip VBN 40404 2377 32 off off RP 40404 2377 33 by by IN 40404 2377 34 the the DT 40404 2377 35 revived revive VBN 40404 2377 36 streams stream NNS 40404 2377 37 , , , 40404 2377 38 the the DT 40404 2377 39 uprise uprise NN 40404 2377 40 is be VBZ 40404 2377 41 recorded record VBN 40404 2377 42 in in IN 40404 2377 43 wide wide JJ 40404 2377 44 deposits deposit NNS 40404 2377 45 of of IN 40404 2377 46 red red JJ 40404 2377 47 and and CC 40404 2377 48 yellow yellow JJ 40404 2377 49 clays clay NNS 40404 2377 50 and and CC 40404 2377 51 sands sand VBZ 40404 2377 52 upon upon IN 40404 2377 53 the the DT 40404 2377 54 adjacent adjacent JJ 40404 2377 55 ocean ocean NN 40404 2377 56 floor floor NN 40404 2377 57 . . . 40404 2378 1 Where where WRB 40404 2378 2 the the DT 40404 2378 3 waste waste NN 40404 2378 4 brought bring VBD 40404 2378 5 in in RP 40404 2378 6 is be VBZ 40404 2378 7 more more JJR 40404 2378 8 than than IN 40404 2378 9 the the DT 40404 2378 10 waves wave NNS 40404 2378 11 can can MD 40404 2378 12 easily easily RB 40404 2378 13 distribute distribute VB 40404 2378 14 , , , 40404 2378 15 as as IN 40404 2378 16 off off IN 40404 2378 17 the the DT 40404 2378 18 mouths mouth NNS 40404 2378 19 of of IN 40404 2378 20 turbid turbid NN 40404 2378 21 rivers river NNS 40404 2378 22 which which WDT 40404 2378 23 drain drain VBP 40404 2378 24 highlands highland NNS 40404 2378 25 near near IN 40404 2378 26 the the DT 40404 2378 27 sea sea NN 40404 2378 28 , , , 40404 2378 29 deposits deposit NNS 40404 2378 30 are be VBP 40404 2378 31 little little JJ 40404 2378 32 winnowed winnow VBN 40404 2378 33 , , , 40404 2378 34 and and CC 40404 2378 35 are be VBP 40404 2378 36 laid lay VBN 40404 2378 37 in in RP 40404 2378 38 rapidly rapidly RB 40404 2378 39 alternating alternate VBG 40404 2378 40 , , , 40404 2378 41 shaly shaly NNP 40404 2378 42 sandstones sandstones NNP 40404 2378 43 and and CC 40404 2378 44 sandy sandy NNP 40404 2378 45 shales shale NNS 40404 2378 46 . . . 40404 2379 1 [ [ -LRB- 40404 2379 2 Illustration illustration NN 40404 2379 3 : : : 40404 2379 4 Fig Fig NNP 40404 2379 5 . . . 40404 2380 1 157 157 CD 40404 2380 2 . . . 40404 2381 1 Offshore offshore JJ 40404 2381 2 Deposits deposit NNS 40404 2381 3 recording record VBG 40404 2381 4 Old Old NNP 40404 2381 5 Age Age NNP 40404 2381 6 of of IN 40404 2381 7 the the DT 40404 2381 8 Adjacent Adjacent NNP 40404 2381 9 Land Land NNP 40404 2381 10 _ _ NNP 40404 2381 11 ss ss NNP 40404 2381 12 _ _ NNP 40404 2381 13 , , , 40404 2381 14 sandstone sandstone NN 40404 2381 15 ; ; : 40404 2381 16 _ _ NNP 40404 2381 17 sh sh NNP 40404 2381 18 _ _ NNP 40404 2381 19 , , , 40404 2381 20 shale shale NNP 40404 2381 21 ; ; : 40404 2381 22 _ _ NNP 40404 2381 23 lm lm NNP 40404 2381 24 _ _ NNP 40404 2381 25 , , , 40404 2381 26 limestone limestone NN 40404 2381 27 ] ] -RRB- 40404 2381 28 Where where WRB 40404 2381 29 the the DT 40404 2381 30 highlands highland NNS 40404 2381 31 are be VBP 40404 2381 32 of of IN 40404 2381 33 igneous igneous JJ 40404 2381 34 rock rock NN 40404 2381 35 , , , 40404 2381 36 such such JJ 40404 2381 37 as as IN 40404 2381 38 granite granite NN 40404 2381 39 , , , 40404 2381 40 and and CC 40404 2381 41 mechanical mechanical JJ 40404 2381 42 disintegration disintegration NN 40404 2381 43 is be VBZ 40404 2381 44 going go VBG 40404 2381 45 on on RP 40404 2381 46 more more RBR 40404 2381 47 rapidly rapidly RB 40404 2381 48 than than IN 40404 2381 49 chemical chemical JJ 40404 2381 50 decay decay NN 40404 2381 51 , , , 40404 2381 52 these these DT 40404 2381 53 conditions condition NNS 40404 2381 54 are be VBP 40404 2381 55 recorded record VBN 40404 2381 56 in in IN 40404 2381 57 the the DT 40404 2381 58 nature nature NN 40404 2381 59 of of IN 40404 2381 60 the the DT 40404 2381 61 deposits deposit NNS 40404 2381 62 laid lay VBN 40404 2381 63 offshore offshore RB 40404 2381 64 . . . 40404 2382 1 The the DT 40404 2382 2 waste waste NN 40404 2382 3 swept sweep VBD 40404 2382 4 in in RP 40404 2382 5 by by IN 40404 2382 6 streams stream NNS 40404 2382 7 contains contain VBZ 40404 2382 8 much much JJ 40404 2382 9 feldspar feldspar NN 40404 2382 10 and and CC 40404 2382 11 other other JJ 40404 2382 12 minerals mineral NNS 40404 2382 13 softer soft JJR 40404 2382 14 and and CC 40404 2382 15 more more RBR 40404 2382 16 soluble soluble JJ 40404 2382 17 than than IN 40404 2382 18 quartz quartz NN 40404 2382 19 , , , 40404 2382 20 and and CC 40404 2382 21 where where WRB 40404 2382 22 the the DT 40404 2382 23 waves wave NNS 40404 2382 24 have have VBP 40404 2382 25 little little JJ 40404 2382 26 opportunity opportunity NN 40404 2382 27 to to TO 40404 2382 28 wear wear VB 40404 2382 29 and and CC 40404 2382 30 winnow winnow VB 40404 2382 31 it -PRON- PRP 40404 2382 32 , , , 40404 2382 33 it -PRON- PRP 40404 2382 34 comes come VBZ 40404 2382 35 to to TO 40404 2382 36 rest rest VB 40404 2382 37 in in IN 40404 2382 38 beds bed NNS 40404 2382 39 of of IN 40404 2382 40 sandstone sandstone NN 40404 2382 41 in in IN 40404 2382 42 which which WDT 40404 2382 43 grains grain NNS 40404 2382 44 of of IN 40404 2382 45 feldspar feldspar NN 40404 2382 46 and and CC 40404 2382 47 other other JJ 40404 2382 48 soft soft JJ 40404 2382 49 minerals mineral NNS 40404 2382 50 are be VBP 40404 2382 51 abundant abundant JJ 40404 2382 52 . . . 40404 2383 1 Such such JJ 40404 2383 2 feldspathic feldspathic JJ 40404 2383 3 sandstones sandstone NNS 40404 2383 4 are be VBP 40404 2383 5 known know VBN 40404 2383 6 as as IN 40404 2383 7 _ _ NNP 40404 2383 8 arkose arkose NN 40404 2383 9 _ _ NNP 40404 2383 10 . . . 40404 2384 1 On on IN 40404 2384 2 the the DT 40404 2384 3 other other JJ 40404 2384 4 hand hand NN 40404 2384 5 , , , 40404 2384 6 where where WRB 40404 2384 7 the the DT 40404 2384 8 waste waste NN 40404 2384 9 supplied supply VBD 40404 2384 10 to to IN 40404 2384 11 the the DT 40404 2384 12 sea sea NN 40404 2384 13 comes come VBZ 40404 2384 14 chiefly chiefly RB 40404 2384 15 from from IN 40404 2384 16 wide wide JJ 40404 2384 17 , , , 40404 2384 18 sandy sandy JJ 40404 2384 19 , , , 40404 2384 20 coastal coastal JJ 40404 2384 21 plains plain NNS 40404 2384 22 , , , 40404 2384 23 there there EX 40404 2384 24 are be VBP 40404 2384 25 deposited deposit VBN 40404 2384 26 offshore offshore JJ 40404 2384 27 clean clean JJ 40404 2384 28 sandstones sandstone NNS 40404 2384 29 of of IN 40404 2384 30 well well RB 40404 2384 31 - - HYPH 40404 2384 32 worn wear VBN 40404 2384 33 grains grain NNS 40404 2384 34 of of IN 40404 2384 35 quartz quartz NN 40404 2384 36 alone alone JJ 40404 2384 37 . . . 40404 2385 1 In in IN 40404 2385 2 such such JJ 40404 2385 3 coastal coastal JJ 40404 2385 4 plains plain VBZ 40404 2385 5 the the DT 40404 2385 6 waste waste NN 40404 2385 7 of of IN 40404 2385 8 the the DT 40404 2385 9 land land NN 40404 2385 10 is be VBZ 40404 2385 11 stored store VBN 40404 2385 12 for for IN 40404 2385 13 ages age NNS 40404 2385 14 . . . 40404 2386 1 Again again RB 40404 2386 2 and and CC 40404 2386 3 again again RB 40404 2386 4 they -PRON- PRP 40404 2386 5 are be VBP 40404 2386 6 abandoned abandon VBN 40404 2386 7 and and CC 40404 2386 8 invaded invade VBN 40404 2386 9 by by IN 40404 2386 10 the the DT 40404 2386 11 sea sea NN 40404 2386 12 as as IN 40404 2386 13 from from IN 40404 2386 14 time time NN 40404 2386 15 to to IN 40404 2386 16 time time NN 40404 2386 17 the the DT 40404 2386 18 land land NN 40404 2386 19 slowly slowly RB 40404 2386 20 emerges emerge VBZ 40404 2386 21 and and CC 40404 2386 22 is be VBZ 40404 2386 23 again again RB 40404 2386 24 submerged submerged JJ 40404 2386 25 . . . 40404 2387 1 Their -PRON- PRP$ 40404 2387 2 deposits deposit NNS 40404 2387 3 are be VBP 40404 2387 4 long long RB 40404 2387 5 exposed expose VBN 40404 2387 6 to to IN 40404 2387 7 the the DT 40404 2387 8 weather weather NN 40404 2387 9 , , , 40404 2387 10 and and CC 40404 2387 11 sorted sort VBD 40404 2387 12 over over RP 40404 2387 13 by by IN 40404 2387 14 the the DT 40404 2387 15 streams stream NNS 40404 2387 16 , , , 40404 2387 17 and and CC 40404 2387 18 winnowed winnow VBD 40404 2387 19 and and CC 40404 2387 20 worked work VBD 40404 2387 21 over over RB 40404 2387 22 again again RB 40404 2387 23 and and CC 40404 2387 24 again again RB 40404 2387 25 by by IN 40404 2387 26 the the DT 40404 2387 27 waves wave NNS 40404 2387 28 . . . 40404 2388 1 In in IN 40404 2388 2 the the DT 40404 2388 3 course course NN 40404 2388 4 of of IN 40404 2388 5 long long JJ 40404 2388 6 ages age NNS 40404 2388 7 such such JJ 40404 2388 8 deposits deposit NNS 40404 2388 9 thus thus RB 40404 2388 10 become become VBP 40404 2388 11 thoroughly thoroughly RB 40404 2388 12 sorted sorted JJ 40404 2388 13 , , , 40404 2388 14 and and CC 40404 2388 15 the the DT 40404 2388 16 grains grain NNS 40404 2388 17 of of IN 40404 2388 18 all all DT 40404 2388 19 minerals mineral NNS 40404 2388 20 softer soft JJR 40404 2388 21 than than IN 40404 2388 22 quartz quartz NNP 40404 2388 23 are be VBP 40404 2388 24 ground grind VBN 40404 2388 25 to to IN 40404 2388 26 mud mud NN 40404 2388 27 . . . 40404 2389 1 [ [ -LRB- 40404 2389 2 Illustration illustration NN 40404 2389 3 : : : 40404 2389 4 Fig Fig NNP 40404 2389 5 . . . 40404 2390 1 158 158 CD 40404 2390 2 . . . 40404 2391 1 Globigerina Globigerina NNP 40404 2391 2 Ooze Ooze NNP 40404 2391 3 under under IN 40404 2391 4 the the DT 40404 2391 5 Microscope Microscope NNP 40404 2391 6 ] ] -RRB- 40404 2391 7 Deep Deep NNP 40404 2391 8 - - HYPH 40404 2391 9 Sea Sea NNP 40404 2391 10 Oozes ooze NNS 40404 2391 11 and and CC 40404 2391 12 Clays Clays NNPS 40404 2391 13 = = SYM 40404 2391 14 Globigerina Globigerina NNP 40404 2391 15 ooze.= ooze.= NNP 40404 2391 16 Beyond beyond IN 40404 2391 17 the the DT 40404 2391 18 reach reach NN 40404 2391 19 of of IN 40404 2391 20 waste waste NN 40404 2391 21 from from IN 40404 2391 22 the the DT 40404 2391 23 land land NN 40404 2391 24 the the DT 40404 2391 25 bottom bottom NN 40404 2391 26 of of IN 40404 2391 27 the the DT 40404 2391 28 deep deep JJ 40404 2391 29 sea sea NN 40404 2391 30 is be VBZ 40404 2391 31 carpeted carpet VBN 40404 2391 32 for for IN 40404 2391 33 the the DT 40404 2391 34 most most JJS 40404 2391 35 part part NN 40404 2391 36 with with IN 40404 2391 37 either either DT 40404 2391 38 chalky chalky NNS 40404 2391 39 ooze ooze NN 40404 2391 40 or or CC 40404 2391 41 a a DT 40404 2391 42 fine fine JJ 40404 2391 43 red red JJ 40404 2391 44 clay clay NN 40404 2391 45 . . . 40404 2392 1 The the DT 40404 2392 2 surface surface NN 40404 2392 3 waters water NNS 40404 2392 4 of of IN 40404 2392 5 the the DT 40404 2392 6 warm warm JJ 40404 2392 7 seas sea NNS 40404 2392 8 swarm swarm VBP 40404 2392 9 with with IN 40404 2392 10 minute minute NN 40404 2392 11 and and CC 40404 2392 12 lowly lowly JJ 40404 2392 13 animals animal NNS 40404 2392 14 belonging belong VBG 40404 2392 15 to to IN 40404 2392 16 the the DT 40404 2392 17 order order NN 40404 2392 18 of of IN 40404 2392 19 the the DT 40404 2392 20 _ _ NNP 40404 2392 21 Foraminifera Foraminifera NNP 40404 2392 22 _ _ NNP 40404 2392 23 , , , 40404 2392 24 which which WDT 40404 2392 25 secrete secrete NN 40404 2392 26 shells shell NNS 40404 2392 27 of of IN 40404 2392 28 carbonate carbonate NN 40404 2392 29 of of IN 40404 2392 30 lime lime NN 40404 2392 31 . . . 40404 2393 1 At at IN 40404 2393 2 death death NN 40404 2393 3 these these DT 40404 2393 4 tiny tiny JJ 40404 2393 5 white white JJ 40404 2393 6 shells shell NNS 40404 2393 7 fall fall VBP 40404 2393 8 through through IN 40404 2393 9 the the DT 40404 2393 10 sea sea NN 40404 2393 11 water water NN 40404 2393 12 like like IN 40404 2393 13 snowflakes snowflake NNS 40404 2393 14 in in IN 40404 2393 15 the the DT 40404 2393 16 air air NN 40404 2393 17 , , , 40404 2393 18 and and CC 40404 2393 19 , , , 40404 2393 20 slowly slowly RB 40404 2393 21 dissolving dissolve VBG 40404 2393 22 , , , 40404 2393 23 seem seem VB 40404 2393 24 to to TO 40404 2393 25 melt melt VB 40404 2393 26 quite quite RB 40404 2393 27 away away RB 40404 2393 28 before before IN 40404 2393 29 they -PRON- PRP 40404 2393 30 can can MD 40404 2393 31 reach reach VB 40404 2393 32 depths depth NNS 40404 2393 33 greater great JJR 40404 2393 34 than than IN 40404 2393 35 about about RB 40404 2393 36 three three CD 40404 2393 37 miles mile NNS 40404 2393 38 . . . 40404 2394 1 Near near IN 40404 2394 2 shore shore NN 40404 2394 3 they -PRON- PRP 40404 2394 4 reach reach VBP 40404 2394 5 bottom bottom NN 40404 2394 6 , , , 40404 2394 7 but but CC 40404 2394 8 are be VBP 40404 2394 9 masked mask VBN 40404 2394 10 by by IN 40404 2394 11 the the DT 40404 2394 12 rapid rapid JJ 40404 2394 13 deposit deposit NN 40404 2394 14 of of IN 40404 2394 15 waste waste NN 40404 2394 16 derived derive VBN 40404 2394 17 from from IN 40404 2394 18 the the DT 40404 2394 19 land land NN 40404 2394 20 . . . 40404 2395 1 At at IN 40404 2395 2 intermediate intermediate JJ 40404 2395 3 depths depth NNS 40404 2395 4 they -PRON- PRP 40404 2395 5 mantle mantle VBP 40404 2395 6 the the DT 40404 2395 7 ocean ocean NN 40404 2395 8 floor floor NN 40404 2395 9 with with IN 40404 2395 10 a a DT 40404 2395 11 white white JJ 40404 2395 12 , , , 40404 2395 13 soft soft JJ 40404 2395 14 lime lime NN 40404 2395 15 deposit deposit NN 40404 2395 16 known know VBN 40404 2395 17 as as IN 40404 2395 18 _ _ NNP 40404 2395 19 Globigerina Globigerina NNP 40404 2395 20 ooze ooze NN 40404 2395 21 _ _ NNP 40404 2395 22 , , , 40404 2395 23 from from IN 40404 2395 24 a a DT 40404 2395 25 genus genus NN 40404 2395 26 of of IN 40404 2395 27 the the DT 40404 2395 28 Foraminifera Foraminifera NNP 40404 2395 29 which which WDT 40404 2395 30 contributes contribute VBZ 40404 2395 31 largely largely RB 40404 2395 32 to to IN 40404 2395 33 its -PRON- PRP$ 40404 2395 34 formation formation NN 40404 2395 35 . . . 40404 2396 1 = = NFP 40404 2396 2 Red red JJ 40404 2396 3 clay.= clay.= CD 40404 2396 4 Below below IN 40404 2396 5 depths depth NNS 40404 2396 6 of of IN 40404 2396 7 from from IN 40404 2396 8 fifteen fifteen CD 40404 2396 9 to to IN 40404 2396 10 eighteen eighteen CD 40404 2396 11 thousand thousand CD 40404 2396 12 feet foot NNS 40404 2396 13 the the DT 40404 2396 14 ocean ocean NN 40404 2396 15 bottom bottom NN 40404 2396 16 is be VBZ 40404 2396 17 sheeted sheet VBN 40404 2396 18 with with IN 40404 2396 19 red red JJ 40404 2396 20 or or CC 40404 2396 21 chocolate chocolate NN 40404 2396 22 colored color VBN 40404 2396 23 clay clay NN 40404 2396 24 . . . 40404 2397 1 It -PRON- PRP 40404 2397 2 is be VBZ 40404 2397 3 the the DT 40404 2397 4 insoluble insoluble JJ 40404 2397 5 residue residue NN 40404 2397 6 of of IN 40404 2397 7 seashells seashell NNS 40404 2397 8 , , , 40404 2397 9 of of IN 40404 2397 10 the the DT 40404 2397 11 debris debris NN 40404 2397 12 of of IN 40404 2397 13 submarine submarine NNP 40404 2397 14 volcanic volcanic JJ 40404 2397 15 eruptions eruption NNS 40404 2397 16 , , , 40404 2397 17 of of IN 40404 2397 18 volcanic volcanic JJ 40404 2397 19 dust dust NN 40404 2397 20 wafted waft VBN 40404 2397 21 by by IN 40404 2397 22 the the DT 40404 2397 23 winds wind NNS 40404 2397 24 , , , 40404 2397 25 and and CC 40404 2397 26 of of IN 40404 2397 27 pieces piece NNS 40404 2397 28 of of IN 40404 2397 29 pumice pumice NN 40404 2397 30 drifted drift VBN 40404 2397 31 by by IN 40404 2397 32 ocean ocean NN 40404 2397 33 currents current NNS 40404 2397 34 far far RB 40404 2397 35 from from IN 40404 2397 36 the the DT 40404 2397 37 volcanoes volcano NNS 40404 2397 38 from from IN 40404 2397 39 which which WDT 40404 2397 40 they -PRON- PRP 40404 2397 41 were be VBD 40404 2397 42 hurled hurl VBN 40404 2397 43 . . . 40404 2398 1 The the DT 40404 2398 2 red red JJ 40404 2398 3 clay clay NN 40404 2398 4 builds build VBZ 40404 2398 5 up up RP 40404 2398 6 with with IN 40404 2398 7 such such JJ 40404 2398 8 inconceivable inconceivable JJ 40404 2398 9 slowness slowness NN 40404 2398 10 that that WDT 40404 2398 11 the the DT 40404 2398 12 teeth tooth NNS 40404 2398 13 of of IN 40404 2398 14 sharks shark NNS 40404 2398 15 and and CC 40404 2398 16 the the DT 40404 2398 17 hard hard JJ 40404 2398 18 ear ear NN 40404 2398 19 bones bone NNS 40404 2398 20 of of IN 40404 2398 21 whales whale NNS 40404 2398 22 may may MD 40404 2398 23 be be VB 40404 2398 24 dredged dredge VBN 40404 2398 25 in in IN 40404 2398 26 large large JJ 40404 2398 27 numbers number NNS 40404 2398 28 from from IN 40404 2398 29 the the DT 40404 2398 30 deep deep JJ 40404 2398 31 ocean ocean NN 40404 2398 32 bed bed NN 40404 2398 33 , , , 40404 2398 34 where where WRB 40404 2398 35 they -PRON- PRP 40404 2398 36 have have VBP 40404 2398 37 lain lie VBN 40404 2398 38 unburied unburie VBN 40404 2398 39 for for IN 40404 2398 40 thousands thousand NNS 40404 2398 41 of of IN 40404 2398 42 years year NNS 40404 2398 43 ; ; : 40404 2398 44 and and CC 40404 2398 45 an an DT 40404 2398 46 appreciable appreciable JJ 40404 2398 47 part part NN 40404 2398 48 of of IN 40404 2398 49 the the DT 40404 2398 50 clay clay NN 40404 2398 51 is be VBZ 40404 2398 52 also also RB 40404 2398 53 formed form VBN 40404 2398 54 by by IN 40404 2398 55 the the DT 40404 2398 56 dust dust NN 40404 2398 57 of of IN 40404 2398 58 meteorites meteorite NNS 40404 2398 59 consumed consume VBN 40404 2398 60 in in IN 40404 2398 61 the the DT 40404 2398 62 atmosphere,--a atmosphere,--a NNP 40404 2398 63 dust dust NN 40404 2398 64 which which WDT 40404 2398 65 falls fall VBZ 40404 2398 66 everywhere everywhere RB 40404 2398 67 on on IN 40404 2398 68 sea sea NN 40404 2398 69 and and CC 40404 2398 70 land land NN 40404 2398 71 , , , 40404 2398 72 but but CC 40404 2398 73 which which WDT 40404 2398 74 elsewhere elsewhere RB 40404 2398 75 is be VBZ 40404 2398 76 wholly wholly RB 40404 2398 77 masked mask VBN 40404 2398 78 by by IN 40404 2398 79 other other JJ 40404 2398 80 deposits deposit NNS 40404 2398 81 . . . 40404 2399 1 The the DT 40404 2399 2 dark dark JJ 40404 2399 3 , , , 40404 2399 4 cold cold JJ 40404 2399 5 abysses abyss NNS 40404 2399 6 of of IN 40404 2399 7 the the DT 40404 2399 8 ocean ocean NN 40404 2399 9 are be VBP 40404 2399 10 far far RB 40404 2399 11 less less RBR 40404 2399 12 affected affected JJ 40404 2399 13 by by IN 40404 2399 14 change change NN 40404 2399 15 than than IN 40404 2399 16 any any DT 40404 2399 17 other other JJ 40404 2399 18 portion portion NN 40404 2399 19 of of IN 40404 2399 20 the the DT 40404 2399 21 surface surface NN 40404 2399 22 of of IN 40404 2399 23 the the DT 40404 2399 24 lithosphere lithosphere NNP 40404 2399 25 . . . 40404 2400 1 These these DT 40404 2400 2 vast vast JJ 40404 2400 3 , , , 40404 2400 4 silent silent JJ 40404 2400 5 plains plain NNS 40404 2400 6 of of IN 40404 2400 7 ooze ooze NN 40404 2400 8 lie lie NN 40404 2400 9 far far RB 40404 2400 10 below below IN 40404 2400 11 the the DT 40404 2400 12 reach reach NN 40404 2400 13 of of IN 40404 2400 14 storms storm NNS 40404 2400 15 . . . 40404 2401 1 They -PRON- PRP 40404 2401 2 know know VBP 40404 2401 3 no no DT 40404 2401 4 succession succession NN 40404 2401 5 of of IN 40404 2401 6 summer summer NN 40404 2401 7 and and CC 40404 2401 8 winter winter NN 40404 2401 9 , , , 40404 2401 10 or or CC 40404 2401 11 of of IN 40404 2401 12 night night NN 40404 2401 13 and and CC 40404 2401 14 day day NN 40404 2401 15 . . . 40404 2402 1 A a DT 40404 2402 2 mantle mantle NN 40404 2402 3 of of IN 40404 2402 4 deep deep JJ 40404 2402 5 and and CC 40404 2402 6 quiet quiet JJ 40404 2402 7 water water NN 40404 2402 8 protects protect VBZ 40404 2402 9 them -PRON- PRP 40404 2402 10 from from IN 40404 2402 11 the the DT 40404 2402 12 agents agent NNS 40404 2402 13 of of IN 40404 2402 14 erosion erosion NN 40404 2402 15 which which WDT 40404 2402 16 continually continually RB 40404 2402 17 attack attack VBP 40404 2402 18 , , , 40404 2402 19 furrow furrow VBP 40404 2402 20 , , , 40404 2402 21 and and CC 40404 2402 22 destroy destroy VB 40404 2402 23 the the DT 40404 2402 24 surface surface NN 40404 2402 25 of of IN 40404 2402 26 the the DT 40404 2402 27 land land NN 40404 2402 28 . . . 40404 2403 1 While while IN 40404 2403 2 the the DT 40404 2403 3 land land NN 40404 2403 4 is be VBZ 40404 2403 5 the the DT 40404 2403 6 area area NN 40404 2403 7 of of IN 40404 2403 8 erosion erosion NN 40404 2403 9 , , , 40404 2403 10 the the DT 40404 2403 11 sea sea NN 40404 2403 12 is be VBZ 40404 2403 13 the the DT 40404 2403 14 area area NN 40404 2403 15 of of IN 40404 2403 16 deposition deposition NN 40404 2403 17 . . . 40404 2404 1 The the DT 40404 2404 2 sheets sheet NNS 40404 2404 3 of of IN 40404 2404 4 sediment sediment NN 40404 2404 5 which which WDT 40404 2404 6 are be VBP 40404 2404 7 slowly slowly RB 40404 2404 8 spread spread VBN 40404 2404 9 there there RB 40404 2404 10 tend tend VBP 40404 2404 11 to to TO 40404 2404 12 efface efface VB 40404 2404 13 any any DT 40404 2404 14 inequalities inequality NNS 40404 2404 15 , , , 40404 2404 16 and and CC 40404 2404 17 to to TO 40404 2404 18 form form VB 40404 2404 19 a a DT 40404 2404 20 smooth smooth JJ 40404 2404 21 and and CC 40404 2404 22 featureless featureless JJ 40404 2404 23 subaqueous subaqueous JJ 40404 2404 24 plain plain NN 40404 2404 25 . . . 40404 2405 1 With with IN 40404 2405 2 few few JJ 40404 2405 3 exceptions exception NNS 40404 2405 4 , , , 40404 2405 5 the the DT 40404 2405 6 stratified stratified JJ 40404 2405 7 rocks rock NNS 40404 2405 8 of of IN 40404 2405 9 the the DT 40404 2405 10 land land NN 40404 2405 11 are be VBP 40404 2405 12 proved prove VBN 40404 2405 13 by by IN 40404 2405 14 their -PRON- PRP$ 40404 2405 15 fossils fossil NNS 40404 2405 16 and and CC 40404 2405 17 composition composition NN 40404 2405 18 to to TO 40404 2405 19 have have VB 40404 2405 20 been be VBN 40404 2405 21 laid lay VBN 40404 2405 22 in in IN 40404 2405 23 the the DT 40404 2405 24 sea sea NN 40404 2405 25 ; ; : 40404 2405 26 but but CC 40404 2405 27 in in IN 40404 2405 28 the the DT 40404 2405 29 same same JJ 40404 2405 30 way way NN 40404 2405 31 they -PRON- PRP 40404 2405 32 are be VBP 40404 2405 33 proved prove VBN 40404 2405 34 to to TO 40404 2405 35 be be VB 40404 2405 36 offshore offshore JJ 40404 2405 37 , , , 40404 2405 38 shallow shallow JJ 40404 2405 39 - - HYPH 40404 2405 40 water water NN 40404 2405 41 deposits deposit NNS 40404 2405 42 , , , 40404 2405 43 akin akin JJ 40404 2405 44 to to IN 40404 2405 45 those those DT 40404 2405 46 now now RB 40404 2405 47 making make VBG 40404 2405 48 on on IN 40404 2405 49 continental continental JJ 40404 2405 50 shelves shelf NNS 40404 2405 51 . . . 40404 2406 1 Deep deep JJ 40404 2406 2 - - HYPH 40404 2406 3 sea sea NN 40404 2406 4 deposits deposit NNS 40404 2406 5 are be VBP 40404 2406 6 absent absent JJ 40404 2406 7 from from IN 40404 2406 8 the the DT 40404 2406 9 rocks rock NNS 40404 2406 10 of of IN 40404 2406 11 the the DT 40404 2406 12 land land NN 40404 2406 13 , , , 40404 2406 14 and and CC 40404 2406 15 we -PRON- PRP 40404 2406 16 may may MD 40404 2406 17 therefore therefore RB 40404 2406 18 infer infer VB 40404 2406 19 that that IN 40404 2406 20 the the DT 40404 2406 21 deep deep JJ 40404 2406 22 sea sea NN 40404 2406 23 has have VBZ 40404 2406 24 never never RB 40404 2406 25 held hold VBN 40404 2406 26 sway sway NN 40404 2406 27 where where WRB 40404 2406 28 the the DT 40404 2406 29 continents continent NNS 40404 2406 30 now now RB 40404 2406 31 are,--that are,--that IN 40404 2406 32 the the DT 40404 2406 33 continents continent NNS 40404 2406 34 have have VBP 40404 2406 35 ever ever RB 40404 2406 36 been be VBN 40404 2406 37 , , , 40404 2406 38 as as RB 40404 2406 39 now now RB 40404 2406 40 , , , 40404 2406 41 the the DT 40404 2406 42 elevated elevated JJ 40404 2406 43 portions portion NNS 40404 2406 44 of of IN 40404 2406 45 the the DT 40404 2406 46 lithosphere lithosphere NNP 40404 2406 47 , , , 40404 2406 48 and and CC 40404 2406 49 that that IN 40404 2406 50 the the DT 40404 2406 51 deep deep JJ 40404 2406 52 seas sea NNS 40404 2406 53 of of IN 40404 2406 54 the the DT 40404 2406 55 present present NN 40404 2406 56 have have VBP 40404 2406 57 ever ever RB 40404 2406 58 been be VBN 40404 2406 59 its -PRON- PRP$ 40404 2406 60 most most RBS 40404 2406 61 depressed depressed JJ 40404 2406 62 portions portion NNS 40404 2406 63 . . . 40404 2407 1 The the DT 40404 2407 2 Reef Reef NNP 40404 2407 3 - - HYPH 40404 2407 4 Building Building NNP 40404 2407 5 Corals Corals NNPS 40404 2407 6 In in IN 40404 2407 7 warm warm JJ 40404 2407 8 seas sea NNS 40404 2407 9 the the DT 40404 2407 10 most most RBS 40404 2407 11 conspicuous conspicuous JJ 40404 2407 12 of of IN 40404 2407 13 rock rock NN 40404 2407 14 - - HYPH 40404 2407 15 making make VBG 40404 2407 16 organisms organism NNS 40404 2407 17 are be VBP 40404 2407 18 the the DT 40404 2407 19 corals coral NNS 40404 2407 20 known know VBN 40404 2407 21 as as IN 40404 2407 22 the the DT 40404 2407 23 reef reef NN 40404 2407 24 builders builder NNS 40404 2407 25 . . . 40404 2408 1 Floating float VBG 40404 2408 2 in in IN 40404 2408 3 a a DT 40404 2408 4 boat boat NN 40404 2408 5 over over IN 40404 2408 6 a a DT 40404 2408 7 coral coral JJ 40404 2408 8 reef reef NN 40404 2408 9 , , , 40404 2408 10 as as IN 40404 2408 11 , , , 40404 2408 12 for for IN 40404 2408 13 example example NN 40404 2408 14 , , , 40404 2408 15 off off IN 40404 2408 16 the the DT 40404 2408 17 south south JJ 40404 2408 18 coast coast NN 40404 2408 19 of of IN 40404 2408 20 Florida Florida NNP 40404 2408 21 or or CC 40404 2408 22 among among IN 40404 2408 23 the the DT 40404 2408 24 Bahamas Bahamas NNPS 40404 2408 25 , , , 40404 2408 26 one one PRP 40404 2408 27 looks look VBZ 40404 2408 28 down down RP 40404 2408 29 through through IN 40404 2408 30 clear clear JJ 40404 2408 31 water water NN 40404 2408 32 on on IN 40404 2408 33 thickets thicket NNS 40404 2408 34 of of IN 40404 2408 35 branching branch VBG 40404 2408 36 coral coral JJ 40404 2408 37 shrubs shrub NNS 40404 2408 38 perhaps perhaps RB 40404 2408 39 as as RB 40404 2408 40 much much JJ 40404 2408 41 as as IN 40404 2408 42 eight eight CD 40404 2408 43 feet foot NNS 40404 2408 44 high high JJ 40404 2408 45 , , , 40404 2408 46 and and CC 40404 2408 47 hemispherical hemispherical JJ 40404 2408 48 masses masse NNS 40404 2408 49 three three CD 40404 2408 50 or or CC 40404 2408 51 four four CD 40404 2408 52 feet foot NNS 40404 2408 53 thick thick JJ 40404 2408 54 , , , 40404 2408 55 all all DT 40404 2408 56 abloom abloom JJ 40404 2408 57 with with IN 40404 2408 58 countless countless JJ 40404 2408 59 minute minute NN 40404 2408 60 flowerlike flowerlike JJ 40404 2408 61 coral coral NN 40404 2408 62 polyps polyp NNS 40404 2408 63 , , , 40404 2408 64 gorgeous gorgeous JJ 40404 2408 65 in in IN 40404 2408 66 their -PRON- PRP$ 40404 2408 67 colors color NNS 40404 2408 68 of of IN 40404 2408 69 yellow yellow NN 40404 2408 70 , , , 40404 2408 71 orange orange JJ 40404 2408 72 , , , 40404 2408 73 green green JJ 40404 2408 74 , , , 40404 2408 75 and and CC 40404 2408 76 red red NN 40404 2408 77 . . . 40404 2409 1 In in IN 40404 2409 2 structure structure NN 40404 2409 3 each each DT 40404 2409 4 tiny tiny JJ 40404 2409 5 polyp polyp NN 40404 2409 6 is be VBZ 40404 2409 7 little little RB 40404 2409 8 more more JJR 40404 2409 9 than than IN 40404 2409 10 a a DT 40404 2409 11 fleshy fleshy NN 40404 2409 12 sac sac NN 40404 2409 13 whose whose WP$ 40404 2409 14 mouth mouth NN 40404 2409 15 is be VBZ 40404 2409 16 surrounded surround VBN 40404 2409 17 with with IN 40404 2409 18 petal petal JJ 40404 2409 19 - - HYPH 40404 2409 20 like like JJ 40404 2409 21 tentacles tentacle NNS 40404 2409 22 , , , 40404 2409 23 or or CC 40404 2409 24 feelers feeler NNS 40404 2409 25 . . . 40404 2410 1 From from IN 40404 2410 2 the the DT 40404 2410 3 sea sea NN 40404 2410 4 water water NN 40404 2410 5 the the DT 40404 2410 6 polyps polyp NNS 40404 2410 7 secrete secrete JJ 40404 2410 8 calcium calcium NN 40404 2410 9 carbonate carbonate NN 40404 2410 10 and and CC 40404 2410 11 build build VB 40404 2410 12 it -PRON- PRP 40404 2410 13 up up RP 40404 2410 14 into into IN 40404 2410 15 the the DT 40404 2410 16 stony stony NNP 40404 2410 17 framework framework NN 40404 2410 18 which which WDT 40404 2410 19 supports support VBZ 40404 2410 20 their -PRON- PRP$ 40404 2410 21 colonies colony NNS 40404 2410 22 . . . 40404 2411 1 Boring boring JJ 40404 2411 2 mollusks mollusk NNS 40404 2411 3 , , , 40404 2411 4 worms worm NNS 40404 2411 5 , , , 40404 2411 6 and and CC 40404 2411 7 sponges sponge NNS 40404 2411 8 perforate perforate VBP 40404 2411 9 and and CC 40404 2411 10 honeycomb honeycomb VBP 40404 2411 11 this this DT 40404 2411 12 framework framework NN 40404 2411 13 even even RB 40404 2411 14 while while IN 40404 2411 15 its -PRON- PRP$ 40404 2411 16 surface surface NN 40404 2411 17 is be VBZ 40404 2411 18 covered cover VBN 40404 2411 19 with with IN 40404 2411 20 myriads myriad NNS 40404 2411 21 of of IN 40404 2411 22 living living NN 40404 2411 23 polyps polyp NNS 40404 2411 24 . . . 40404 2412 1 It -PRON- PRP 40404 2412 2 is be VBZ 40404 2412 3 thus thus RB 40404 2412 4 easily easily RB 40404 2412 5 broken break VBN 40404 2412 6 by by IN 40404 2412 7 the the DT 40404 2412 8 waves wave NNS 40404 2412 9 , , , 40404 2412 10 and and CC 40404 2412 11 white white JJ 40404 2412 12 fragments fragment NNS 40404 2412 13 of of IN 40404 2412 14 coral coral JJ 40404 2412 15 trees tree NNS 40404 2412 16 strew strew VBD 40404 2412 17 the the DT 40404 2412 18 ground ground NN 40404 2412 19 beneath beneath RB 40404 2412 20 . . . 40404 2413 1 Brilliantly brilliantly RB 40404 2413 2 colored color VBD 40404 2413 3 fishes fish NNS 40404 2413 4 live live VBP 40404 2413 5 in in IN 40404 2413 6 these these DT 40404 2413 7 coral coral JJ 40404 2413 8 groves grove NNS 40404 2413 9 , , , 40404 2413 10 and and CC 40404 2413 11 countless countless JJ 40404 2413 12 mollusks mollusk NNS 40404 2413 13 , , , 40404 2413 14 sea sea NN 40404 2413 15 urchins urchin NNS 40404 2413 16 , , , 40404 2413 17 and and CC 40404 2413 18 other other JJ 40404 2413 19 forms form NNS 40404 2413 20 of of IN 40404 2413 21 marine marine JJ 40404 2413 22 life life NN 40404 2413 23 make make VBP 40404 2413 24 here here RB 40404 2413 25 their -PRON- PRP$ 40404 2413 26 home home NN 40404 2413 27 . . . 40404 2414 1 With with IN 40404 2414 2 the the DT 40404 2414 3 debris debris NN 40404 2414 4 from from IN 40404 2414 5 all all PDT 40404 2414 6 these these DT 40404 2414 7 sources source NNS 40404 2414 8 the the DT 40404 2414 9 reef reef NN 40404 2414 10 is be VBZ 40404 2414 11 constantly constantly RB 40404 2414 12 built build VBN 40404 2414 13 up up RP 40404 2414 14 until until IN 40404 2414 15 it -PRON- PRP 40404 2414 16 rises rise VBZ 40404 2414 17 to to IN 40404 2414 18 low low JJ 40404 2414 19 - - HYPH 40404 2414 20 tide tide NN 40404 2414 21 level level NN 40404 2414 22 . . . 40404 2415 1 Higher high JJR 40404 2415 2 than than IN 40404 2415 3 this this DT 40404 2415 4 the the DT 40404 2415 5 corals coral NNS 40404 2415 6 can can MD 40404 2415 7 not not RB 40404 2415 8 grow grow VB 40404 2415 9 , , , 40404 2415 10 since since IN 40404 2415 11 they -PRON- PRP 40404 2415 12 are be VBP 40404 2415 13 killed kill VBN 40404 2415 14 by by IN 40404 2415 15 a a DT 40404 2415 16 few few JJ 40404 2415 17 hours hour NNS 40404 2415 18 ' ' POS 40404 2415 19 exposure exposure NN 40404 2415 20 to to IN 40404 2415 21 the the DT 40404 2415 22 air air NN 40404 2415 23 . . . 40404 2416 1 [ [ -LRB- 40404 2416 2 Illustration illustration NN 40404 2416 3 : : : 40404 2416 4 Fig Fig NNP 40404 2416 5 . . . 40404 2417 1 159 159 CD 40404 2417 2 . . . 40404 2418 1 Patch Patch NNP 40404 2418 2 of of IN 40404 2418 3 Growing Growing NNP 40404 2418 4 Corals Corals NNPS 40404 2418 5 exposed expose VBN 40404 2418 6 at at IN 40404 2418 7 an an DT 40404 2418 8 Exceptionally Exceptionally NNP 40404 2418 9 Low Low NNP 40404 2418 10 Tide Tide NNP 40404 2418 11 , , , 40404 2418 12 Great Great NNP 40404 2418 13 Barrier Barrier NNP 40404 2418 14 Reef Reef NNP 40404 2418 15 , , , 40404 2418 16 Australia Australia NNP 40404 2418 17 ] ] -RRB- 40404 2418 18 When when WRB 40404 2418 19 the the DT 40404 2418 20 reef reef NN 40404 2418 21 has have VBZ 40404 2418 22 risen rise VBN 40404 2418 23 to to TO 40404 2418 24 wave wave VB 40404 2418 25 base base NN 40404 2418 26 , , , 40404 2418 27 the the DT 40404 2418 28 waves wave NNS 40404 2418 29 abrade abrade VBP 40404 2418 30 it -PRON- PRP 40404 2418 31 on on IN 40404 2418 32 the the DT 40404 2418 33 windward windward JJ 40404 2418 34 side side NN 40404 2418 35 and and CC 40404 2418 36 pile pile VB 40404 2418 37 to to IN 40404 2418 38 leeward leeward JJ 40404 2418 39 coral coral NN 40404 2418 40 blocks block NNS 40404 2418 41 torn tear VBN 40404 2418 42 from from IN 40404 2418 43 their -PRON- PRP$ 40404 2418 44 foundation foundation NN 40404 2418 45 , , , 40404 2418 46 filling fill VBG 40404 2418 47 the the DT 40404 2418 48 interstices interstice NNS 40404 2418 49 with with IN 40404 2418 50 finer finer NNP 40404 2418 51 fragments fragment NNS 40404 2418 52 . . . 40404 2419 1 Thus thus RB 40404 2419 2 they -PRON- PRP 40404 2419 3 heap heap VBP 40404 2419 4 up up RP 40404 2419 5 along along IN 40404 2419 6 the the DT 40404 2419 7 reef reef NN 40404 2419 8 low low JJ 40404 2419 9 , , , 40404 2419 10 narrow narrow JJ 40404 2419 11 islands island NNS 40404 2419 12 ( ( -LRB- 40404 2419 13 Fig fig NN 40404 2419 14 . . . 40404 2420 1 160 160 CD 40404 2420 2 ) ) -RRB- 40404 2420 3 . . . 40404 2421 1 Reef Reef NNP 40404 2421 2 building building NN 40404 2421 3 is be VBZ 40404 2421 4 a a DT 40404 2421 5 comparatively comparatively RB 40404 2421 6 rapid rapid JJ 40404 2421 7 progress progress NN 40404 2421 8 . . . 40404 2422 1 It -PRON- PRP 40404 2422 2 has have VBZ 40404 2422 3 been be VBN 40404 2422 4 estimated estimate VBN 40404 2422 5 that that IN 40404 2422 6 off off RP 40404 2422 7 Florida Florida NNP 40404 2422 8 a a DT 40404 2422 9 reef reef NN 40404 2422 10 could could MD 40404 2422 11 be be VB 40404 2422 12 built build VBN 40404 2422 13 up up RP 40404 2422 14 to to IN 40404 2422 15 the the DT 40404 2422 16 surface surface NN 40404 2422 17 from from IN 40404 2422 18 a a DT 40404 2422 19 depth depth NN 40404 2422 20 of of IN 40404 2422 21 fifty fifty CD 40404 2422 22 feet foot NNS 40404 2422 23 in in IN 40404 2422 24 about about RB 40404 2422 25 fifteen fifteen CD 40404 2422 26 hundred hundred CD 40404 2422 27 years year NNS 40404 2422 28 . . . 40404 2423 1 [ [ -LRB- 40404 2423 2 Illustration illustration NN 40404 2423 3 : : : 40404 2423 4 Fig Fig NNP 40404 2423 5 . . . 40404 2424 1 160 160 CD 40404 2424 2 . . . 40404 2425 1 Wave wave VB 40404 2425 2 - - HYPH 40404 2425 3 Built build VBN 40404 2425 4 Island Island NNP 40404 2425 5 on on IN 40404 2425 6 Coral Coral NNP 40404 2425 7 Reef Reef NNP 40404 2425 8 _ _ NNP 40404 2425 9 r r NNP 40404 2425 10 _ _ NNP 40404 2425 11 , , , 40404 2425 12 reef reef NN 40404 2425 13 ; ; : 40404 2425 14 _ _ NNP 40404 2425 15 sl sl NN 40404 2425 16 _ _ NNP 40404 2425 17 , , , 40404 2425 18 sea sea NN 40404 2425 19 level level NN 40404 2425 20 ] ] -RRB- 40404 2425 21 = = NFP 40404 2425 22 Coral Coral NNP 40404 2425 23 limestones.= limestones.= NNP 40404 2425 24 Limestones Limestones NNPS 40404 2425 25 of of IN 40404 2425 26 various various JJ 40404 2425 27 kinds kind NNS 40404 2425 28 are be VBP 40404 2425 29 due due JJ 40404 2425 30 to to IN 40404 2425 31 the the DT 40404 2425 32 reef reef NN 40404 2425 33 builders builder NNS 40404 2425 34 . . . 40404 2426 1 The the DT 40404 2426 2 reef reef NN 40404 2426 3 rock rock NN 40404 2426 4 is be VBZ 40404 2426 5 made make VBN 40404 2426 6 of of IN 40404 2426 7 corals coral NNS 40404 2426 8 in in IN 40404 2426 9 place place NN 40404 2426 10 and and CC 40404 2426 11 broken break VBN 40404 2426 12 fragments fragment NNS 40404 2426 13 of of IN 40404 2426 14 all all DT 40404 2426 15 sizes size NNS 40404 2426 16 , , , 40404 2426 17 cemented cement VBD 40404 2426 18 together together RB 40404 2426 19 with with IN 40404 2426 20 calcium calcium NN 40404 2426 21 carbonate carbonate NN 40404 2426 22 from from IN 40404 2426 23 solution solution NN 40404 2426 24 by by IN 40404 2426 25 infiltrating infiltrate VBG 40404 2426 26 waters water NNS 40404 2426 27 . . . 40404 2427 1 On on IN 40404 2427 2 the the DT 40404 2427 3 island island NN 40404 2427 4 beaches beach VBZ 40404 2427 5 coral coral JJ 40404 2427 6 sand sand NN 40404 2427 7 is be VBZ 40404 2427 8 forming form VBG 40404 2427 9 oolitic oolitic JJ 40404 2427 10 limestone limestone NN 40404 2427 11 , , , 40404 2427 12 and and CC 40404 2427 13 the the DT 40404 2427 14 white white JJ 40404 2427 15 coral coral JJ 40404 2427 16 mud mud NN 40404 2427 17 with with IN 40404 2427 18 which which WDT 40404 2427 19 the the DT 40404 2427 20 sea sea NN 40404 2427 21 is be VBZ 40404 2427 22 milky milky JJ 40404 2427 23 for for IN 40404 2427 24 miles mile NNS 40404 2427 25 about about IN 40404 2427 26 the the DT 40404 2427 27 reef reef NN 40404 2427 28 in in IN 40404 2427 29 times time NNS 40404 2427 30 of of IN 40404 2427 31 storm storm NN 40404 2427 32 settles settle VBZ 40404 2427 33 and and CC 40404 2427 34 concretes concrete NNS 40404 2427 35 into into IN 40404 2427 36 a a DT 40404 2427 37 compact compact JJ 40404 2427 38 limestone limestone NN 40404 2427 39 of of IN 40404 2427 40 finest fine JJS 40404 2427 41 grain grain NN 40404 2427 42 . . . 40404 2428 1 Corals coral NNS 40404 2428 2 have have VBP 40404 2428 3 been be VBN 40404 2428 4 among among IN 40404 2428 5 the the DT 40404 2428 6 most most RBS 40404 2428 7 important important JJ 40404 2428 8 limestone limestone NN 40404 2428 9 builders builder NNS 40404 2428 10 of of IN 40404 2428 11 the the DT 40404 2428 12 sea sea NN 40404 2428 13 ever ever RB 40404 2428 14 since since IN 40404 2428 15 they -PRON- PRP 40404 2428 16 made make VBD 40404 2428 17 their -PRON- PRP$ 40404 2428 18 appearance appearance NN 40404 2428 19 in in IN 40404 2428 20 the the DT 40404 2428 21 early early JJ 40404 2428 22 geological geological JJ 40404 2428 23 ages age NNS 40404 2428 24 . . . 40404 2429 1 The the DT 40404 2429 2 areas area NNS 40404 2429 3 on on IN 40404 2429 4 which which WDT 40404 2429 5 coral coral JJ 40404 2429 6 limestone limestone NN 40404 2429 7 is be VBZ 40404 2429 8 now now RB 40404 2429 9 forming form VBG 40404 2429 10 are be VBP 40404 2429 11 large large JJ 40404 2429 12 . . . 40404 2430 1 The the DT 40404 2430 2 Great Great NNP 40404 2430 3 Barrier Barrier NNP 40404 2430 4 Reef Reef NNP 40404 2430 5 of of IN 40404 2430 6 Australia Australia NNP 40404 2430 7 , , , 40404 2430 8 which which WDT 40404 2430 9 lies lie VBZ 40404 2430 10 off off RP 40404 2430 11 the the DT 40404 2430 12 northeastern northeastern JJ 40404 2430 13 coast coast NN 40404 2430 14 , , , 40404 2430 15 is be VBZ 40404 2430 16 twelve twelve CD 40404 2430 17 hundred hundred CD 40404 2430 18 and and CC 40404 2430 19 fifty fifty CD 40404 2430 20 miles mile NNS 40404 2430 21 long long JJ 40404 2430 22 , , , 40404 2430 23 and and CC 40404 2430 24 has have VBZ 40404 2430 25 a a DT 40404 2430 26 width width NN 40404 2430 27 of of IN 40404 2430 28 from from IN 40404 2430 29 ten ten CD 40404 2430 30 to to IN 40404 2430 31 ninety ninety CD 40404 2430 32 miles mile NNS 40404 2430 33 . . . 40404 2431 1 Most Most JJS 40404 2431 2 of of IN 40404 2431 3 the the DT 40404 2431 4 islands island NNS 40404 2431 5 of of IN 40404 2431 6 the the DT 40404 2431 7 tropics tropic NNS 40404 2431 8 are be VBP 40404 2431 9 either either RB 40404 2431 10 skirted skirt VBN 40404 2431 11 with with IN 40404 2431 12 coral coral JJ 40404 2431 13 reefs reef NNS 40404 2431 14 or or CC 40404 2431 15 are be VBP 40404 2431 16 themselves -PRON- PRP 40404 2431 17 of of IN 40404 2431 18 coral coral JJ 40404 2431 19 formation formation NN 40404 2431 20 . . . 40404 2432 1 = = NFP 40404 2432 2 Conditions condition NNS 40404 2432 3 of of IN 40404 2432 4 coral coral JJ 40404 2432 5 growth.= growth.= CD 40404 2432 6 Reef Reef NNP 40404 2432 7 - - HYPH 40404 2432 8 building building NN 40404 2432 9 corals coral NNS 40404 2432 10 can can MD 40404 2432 11 not not RB 40404 2432 12 live live VB 40404 2432 13 except except IN 40404 2432 14 in in IN 40404 2432 15 clear clear JJ 40404 2432 16 salt salt NN 40404 2432 17 water water NN 40404 2432 18 less less RBR 40404 2432 19 , , , 40404 2432 20 as as IN 40404 2432 21 a a DT 40404 2432 22 rule rule NN 40404 2432 23 , , , 40404 2432 24 than than IN 40404 2432 25 one one CD 40404 2432 26 hundred hundred CD 40404 2432 27 and and CC 40404 2432 28 fifty fifty CD 40404 2432 29 feet foot NNS 40404 2432 30 in in IN 40404 2432 31 depth depth NN 40404 2432 32 , , , 40404 2432 33 with with IN 40404 2432 34 a a DT 40404 2432 35 winter winter NN 40404 2432 36 temperature temperature NN 40404 2432 37 not not RB 40404 2432 38 lower low JJR 40404 2432 39 than than IN 40404 2432 40 68 68 CD 40404 2432 41 ° ° , 40404 2432 42 F. F. NNP 40404 2432 43 An an DT 40404 2432 44 important important JJ 40404 2432 45 condition condition NN 40404 2432 46 also also RB 40404 2432 47 is be VBZ 40404 2432 48 an an DT 40404 2432 49 abundant abundant JJ 40404 2432 50 food food NN 40404 2432 51 supply supply NN 40404 2432 52 , , , 40404 2432 53 and and CC 40404 2432 54 this this DT 40404 2432 55 is be VBZ 40404 2432 56 best well RBS 40404 2432 57 secured secure VBN 40404 2432 58 in in IN 40404 2432 59 the the DT 40404 2432 60 path path NN 40404 2432 61 of of IN 40404 2432 62 the the DT 40404 2432 63 warm warm JJ 40404 2432 64 oceanic oceanic JJ 40404 2432 65 currents current NNS 40404 2432 66 . . . 40404 2433 1 Coral coral JJ 40404 2433 2 reefs reef NNS 40404 2433 3 may may MD 40404 2433 4 be be VB 40404 2433 5 grouped group VBN 40404 2433 6 in in IN 40404 2433 7 three three CD 40404 2433 8 classes,--fringing classes,--fringing NNP 40404 2433 9 reefs reef NNS 40404 2433 10 , , , 40404 2433 11 barrier barrier NN 40404 2433 12 reefs reef NNS 40404 2433 13 , , , 40404 2433 14 and and CC 40404 2433 15 atolls atoll NNS 40404 2433 16 . . . 40404 2434 1 = = NFP 40404 2434 2 Fringing fringe VBG 40404 2434 3 reefs.= reefs.= CD 40404 2434 4 These these DT 40404 2434 5 take take VBP 40404 2434 6 their -PRON- PRP$ 40404 2434 7 name name NN 40404 2434 8 from from IN 40404 2434 9 the the DT 40404 2434 10 fact fact NN 40404 2434 11 that that IN 40404 2434 12 they -PRON- PRP 40404 2434 13 are be VBP 40404 2434 14 attached attach VBN 40404 2434 15 as as IN 40404 2434 16 narrow narrow JJ 40404 2434 17 fringes fringe NNS 40404 2434 18 to to IN 40404 2434 19 the the DT 40404 2434 20 shore shore NN 40404 2434 21 . . . 40404 2435 1 An an DT 40404 2435 2 example example NN 40404 2435 3 is be VBZ 40404 2435 4 the the DT 40404 2435 5 reef reef NN 40404 2435 6 which which WDT 40404 2435 7 forms form VBZ 40404 2435 8 a a DT 40404 2435 9 selvage selvage NN 40404 2435 10 about about IN 40404 2435 11 a a DT 40404 2435 12 mile mile NN 40404 2435 13 wide wide JJ 40404 2435 14 along along IN 40404 2435 15 the the DT 40404 2435 16 northeastern northeastern JJ 40404 2435 17 coast coast NN 40404 2435 18 of of IN 40404 2435 19 Cuba Cuba NNP 40404 2435 20 . . . 40404 2436 1 The the DT 40404 2436 2 outer outer JJ 40404 2436 3 margin margin NN 40404 2436 4 , , , 40404 2436 5 indicated indicate VBN 40404 2436 6 by by IN 40404 2436 7 the the DT 40404 2436 8 line line NN 40404 2436 9 of of IN 40404 2436 10 white white JJ 40404 2436 11 surf surf NN 40404 2436 12 , , , 40404 2436 13 where where WRB 40404 2436 14 the the DT 40404 2436 15 corals coral NNS 40404 2436 16 are be VBP 40404 2436 17 in in IN 40404 2436 18 vigorous vigorous JJ 40404 2436 19 growth growth NN 40404 2436 20 , , , 40404 2436 21 rises rise VBZ 40404 2436 22 from from IN 40404 2436 23 about about RB 40404 2436 24 forty forty CD 40404 2436 25 feet foot NNS 40404 2436 26 of of IN 40404 2436 27 water water NN 40404 2436 28 . . . 40404 2437 1 Between between IN 40404 2437 2 this this DT 40404 2437 3 and and CC 40404 2437 4 the the DT 40404 2437 5 shore shore NN 40404 2437 6 lies lie VBZ 40404 2437 7 a a DT 40404 2437 8 stretch stretch NN 40404 2437 9 of of IN 40404 2437 10 shoal shoal NN 40404 2437 11 across across IN 40404 2437 12 which which WDT 40404 2437 13 one one PRP 40404 2437 14 can can MD 40404 2437 15 wade wade VB 40404 2437 16 at at IN 40404 2437 17 low low JJ 40404 2437 18 water water NN 40404 2437 19 , , , 40404 2437 20 composed compose VBN 40404 2437 21 of of IN 40404 2437 22 coral coral JJ 40404 2437 23 sand sand NN 40404 2437 24 with with IN 40404 2437 25 here here RB 40404 2437 26 and and CC 40404 2437 27 there there RB 40404 2437 28 a a DT 40404 2437 29 clump clump NN 40404 2437 30 of of IN 40404 2437 31 growing grow VBG 40404 2437 32 coral coral NN 40404 2437 33 . . . 40404 2438 1 = = NFP 40404 2438 2 Barrier Barrier NNP 40404 2438 3 reefs.= reefs.= CD 40404 2438 4 Reefs Reefs NNPS 40404 2438 5 separated separate VBD 40404 2438 6 from from IN 40404 2438 7 the the DT 40404 2438 8 shore shore NN 40404 2438 9 by by IN 40404 2438 10 a a DT 40404 2438 11 ship ship NN 40404 2438 12 channel channel NN 40404 2438 13 of of IN 40404 2438 14 quiet quiet JJ 40404 2438 15 water water NN 40404 2438 16 , , , 40404 2438 17 often often RB 40404 2438 18 several several JJ 40404 2438 19 miles mile NNS 40404 2438 20 in in IN 40404 2438 21 width width NN 40404 2438 22 and and CC 40404 2438 23 sometimes sometimes RB 40404 2438 24 as as RB 40404 2438 25 much much JJ 40404 2438 26 as as IN 40404 2438 27 three three CD 40404 2438 28 hundred hundred CD 40404 2438 29 feet foot NNS 40404 2438 30 in in IN 40404 2438 31 depth depth NN 40404 2438 32 , , , 40404 2438 33 are be VBP 40404 2438 34 known know VBN 40404 2438 35 as as IN 40404 2438 36 barrier barrier NN 40404 2438 37 reefs reef NNS 40404 2438 38 . . . 40404 2439 1 The the DT 40404 2439 2 seaward seaward NN 40404 2439 3 face face NN 40404 2439 4 rises rise VBZ 40404 2439 5 abruptly abruptly RB 40404 2439 6 from from IN 40404 2439 7 water water NN 40404 2439 8 too too RB 40404 2439 9 deep deep JJ 40404 2439 10 for for IN 40404 2439 11 coral coral JJ 40404 2439 12 growth growth NN 40404 2439 13 . . . 40404 2440 1 Low low JJ 40404 2440 2 islands island NNS 40404 2440 3 are be VBP 40404 2440 4 cast cast VBN 40404 2440 5 up up RP 40404 2440 6 by by IN 40404 2440 7 the the DT 40404 2440 8 waves wave NNS 40404 2440 9 upon upon IN 40404 2440 10 the the DT 40404 2440 11 reef reef NN 40404 2440 12 , , , 40404 2440 13 and and CC 40404 2440 14 inlets inlet NNS 40404 2440 15 give give VBP 40404 2440 16 place place NN 40404 2440 17 for for IN 40404 2440 18 the the DT 40404 2440 19 ebb ebb NN 40404 2440 20 and and CC 40404 2440 21 flow flow NN 40404 2440 22 of of IN 40404 2440 23 the the DT 40404 2440 24 tides tide NNS 40404 2440 25 . . . 40404 2441 1 Along along IN 40404 2441 2 the the DT 40404 2441 3 west west NNP 40404 2441 4 coast coast NN 40404 2441 5 of of IN 40404 2441 6 the the DT 40404 2441 7 island island NN 40404 2441 8 of of IN 40404 2441 9 New New NNP 40404 2441 10 Caledonia Caledonia NNP 40404 2441 11 a a DT 40404 2441 12 barrier barrier NN 40404 2441 13 reef reef NN 40404 2441 14 extends extend VBZ 40404 2441 15 for for IN 40404 2441 16 four four CD 40404 2441 17 hundred hundred CD 40404 2441 18 miles mile NNS 40404 2441 19 , , , 40404 2441 20 and and CC 40404 2441 21 for for IN 40404 2441 22 a a DT 40404 2441 23 length length NN 40404 2441 24 of of IN 40404 2441 25 many many JJ 40404 2441 26 leagues league NNS 40404 2441 27 seldom seldom RB 40404 2441 28 approaches approach VBZ 40404 2441 29 within within IN 40404 2441 30 eight eight CD 40404 2441 31 miles mile NNS 40404 2441 32 of of IN 40404 2441 33 the the DT 40404 2441 34 shore shore NN 40404 2441 35 . . . 40404 2442 1 = = NFP 40404 2442 2 Atolls.= Atolls.= NNP 40404 2442 3 These these DT 40404 2442 4 are be VBP 40404 2442 5 ring re VBG 40404 2442 6 - - HYPH 40404 2442 7 shaped shaped JJ 40404 2442 8 or or CC 40404 2442 9 irregular irregular JJ 40404 2442 10 coral coral JJ 40404 2442 11 islands island NNS 40404 2442 12 , , , 40404 2442 13 or or CC 40404 2442 14 island island NN 40404 2442 15 - - HYPH 40404 2442 16 studded stud VBN 40404 2442 17 reefs reef NNS 40404 2442 18 , , , 40404 2442 19 inclosing inclose VBG 40404 2442 20 a a DT 40404 2442 21 central central JJ 40404 2442 22 lagoon lagoon NN 40404 2442 23 . . . 40404 2443 1 The the DT 40404 2443 2 narrow narrow JJ 40404 2443 3 zone zone NN 40404 2443 4 of of IN 40404 2443 5 land land NN 40404 2443 6 , , , 40404 2443 7 like like IN 40404 2443 8 the the DT 40404 2443 9 rim rim NN 40404 2443 10 of of IN 40404 2443 11 a a DT 40404 2443 12 great great JJ 40404 2443 13 bowl bowl NN 40404 2443 14 sunken sink VBN 40404 2443 15 to to IN 40404 2443 16 the the DT 40404 2443 17 water water NN 40404 2443 18 's 's POS 40404 2443 19 edge edge NN 40404 2443 20 , , , 40404 2443 21 rises rise VBZ 40404 2443 22 hardly hardly RB 40404 2443 23 more more JJR 40404 2443 24 than than IN 40404 2443 25 twenty twenty CD 40404 2443 26 feet foot NNS 40404 2443 27 at at IN 40404 2443 28 most most RBS 40404 2443 29 above above IN 40404 2443 30 the the DT 40404 2443 31 sea sea NN 40404 2443 32 , , , 40404 2443 33 and and CC 40404 2443 34 is be VBZ 40404 2443 35 covered cover VBN 40404 2443 36 with with IN 40404 2443 37 a a DT 40404 2443 38 forest forest NN 40404 2443 39 of of IN 40404 2443 40 trees tree NNS 40404 2443 41 such such JJ 40404 2443 42 as as IN 40404 2443 43 the the DT 40404 2443 44 cocoanut cocoanut NN 40404 2443 45 , , , 40404 2443 46 whose whose WP$ 40404 2443 47 seeds seed NNS 40404 2443 48 can can MD 40404 2443 49 be be VB 40404 2443 50 drifted drift VBN 40404 2443 51 to to IN 40404 2443 52 it -PRON- PRP 40404 2443 53 uninjured uninjured JJ 40404 2443 54 from from IN 40404 2443 55 long long JJ 40404 2443 56 distances distance NNS 40404 2443 57 . . . 40404 2444 1 The the DT 40404 2444 2 white white JJ 40404 2444 3 beach beach NN 40404 2444 4 of of IN 40404 2444 5 coral coral JJ 40404 2444 6 sand sand NN 40404 2444 7 leads lead VBZ 40404 2444 8 down down RP 40404 2444 9 to to IN 40404 2444 10 the the DT 40404 2444 11 growing grow VBG 40404 2444 12 reef reef NN 40404 2444 13 , , , 40404 2444 14 on on IN 40404 2444 15 whose whose WP$ 40404 2444 16 outer outer JJ 40404 2444 17 margin margin NN 40404 2444 18 the the DT 40404 2444 19 surf surf NN 40404 2444 20 is be VBZ 40404 2444 21 constantly constantly RB 40404 2444 22 breaking break VBG 40404 2444 23 . . . 40404 2445 1 The the DT 40404 2445 2 sea sea NN 40404 2445 3 face face NN 40404 2445 4 of of IN 40404 2445 5 the the DT 40404 2445 6 reef reef NN 40404 2445 7 falls fall VBZ 40404 2445 8 off off RP 40404 2445 9 abruptly abruptly RB 40404 2445 10 , , , 40404 2445 11 often often RB 40404 2445 12 to to IN 40404 2445 13 depths depth NNS 40404 2445 14 of of IN 40404 2445 15 thousands thousand NNS 40404 2445 16 of of IN 40404 2445 17 feet foot NNS 40404 2445 18 , , , 40404 2445 19 while while IN 40404 2445 20 the the DT 40404 2445 21 lagoon lagoon NN 40404 2445 22 varies vary VBZ 40404 2445 23 in in IN 40404 2445 24 depth depth NN 40404 2445 25 from from IN 40404 2445 26 a a DT 40404 2445 27 few few JJ 40404 2445 28 feet foot NNS 40404 2445 29 to to IN 40404 2445 30 one one CD 40404 2445 31 hundred hundred CD 40404 2445 32 and and CC 40404 2445 33 fifty fifty CD 40404 2445 34 or or CC 40404 2445 35 two two CD 40404 2445 36 hundred hundred CD 40404 2445 37 , , , 40404 2445 38 and and CC 40404 2445 39 exceptionally exceptionally RB 40404 2445 40 measures measure NNS 40404 2445 41 as as RB 40404 2445 42 much much JJ 40404 2445 43 as as IN 40404 2445 44 three three CD 40404 2445 45 hundred hundred CD 40404 2445 46 and and CC 40404 2445 47 fifty fifty CD 40404 2445 48 feet foot NNS 40404 2445 49 . . . 40404 2446 1 = = NFP 40404 2446 2 Theories theory NNS 40404 2446 3 of of IN 40404 2446 4 coral coral JJ 40404 2446 5 reefs.= reefs.= CD 40404 2446 6 Fringing fringing NN 40404 2446 7 reefs reef NNS 40404 2446 8 require require VBP 40404 2446 9 no no DT 40404 2446 10 explanation explanation NN 40404 2446 11 , , , 40404 2446 12 since since IN 40404 2446 13 the the DT 40404 2446 14 depth depth NN 40404 2446 15 of of IN 40404 2446 16 water water NN 40404 2446 17 about about IN 40404 2446 18 them -PRON- PRP 40404 2446 19 is be VBZ 40404 2446 20 not not RB 40404 2446 21 greater great JJR 40404 2446 22 than than IN 40404 2446 23 that that DT 40404 2446 24 at at IN 40404 2446 25 which which WDT 40404 2446 26 coral coral NN 40404 2446 27 can can MD 40404 2446 28 grow grow VB 40404 2446 29 ; ; : 40404 2446 30 but but CC 40404 2446 31 barrier barrier NN 40404 2446 32 reefs reef NNS 40404 2446 33 and and CC 40404 2446 34 atolls atoll NNS 40404 2446 35 , , , 40404 2446 36 which which WDT 40404 2446 37 may may MD 40404 2446 38 rise rise VB 40404 2446 39 from from IN 40404 2446 40 depths depth NNS 40404 2446 41 too too RB 40404 2446 42 great great JJ 40404 2446 43 for for IN 40404 2446 44 coral coral JJ 40404 2446 45 growth growth NN 40404 2446 46 demand demand VBP 40404 2446 47 a a DT 40404 2446 48 theory theory NN 40404 2446 49 of of IN 40404 2446 50 their -PRON- PRP$ 40404 2446 51 origin origin NN 40404 2446 52 . . . 40404 2447 1 [ [ -LRB- 40404 2447 2 Illustration illustration NN 40404 2447 3 : : : 40404 2447 4 Fig Fig NNP 40404 2447 5 . . . 40404 2448 1 161 161 CD 40404 2448 2 . . . 40404 2449 1 Diagram Diagram NNP 40404 2449 2 illustrating illustrate VBG 40404 2449 3 the the DT 40404 2449 4 Subsidence Subsidence NNP 40404 2449 5 Theory Theory NNP 40404 2449 6 of of IN 40404 2449 7 Coral Coral NNP 40404 2449 8 Reefs Reefs NNPS 40404 2449 9 ] ] -RRB- 40404 2449 10 Darwin Darwin NNP 40404 2449 11 's 's POS 40404 2449 12 theory theory NN 40404 2449 13 holds hold VBZ 40404 2449 14 that that IN 40404 2449 15 barrier barrier NN 40404 2449 16 reefs reef NNS 40404 2449 17 and and CC 40404 2449 18 atolls atoll NNS 40404 2449 19 are be VBP 40404 2449 20 formed form VBN 40404 2449 21 from from IN 40404 2449 22 fringing fringe VBG 40404 2449 23 reefs reef NNS 40404 2449 24 by by IN 40404 2449 25 _ _ NNP 40404 2449 26 subsidence subsidence NN 40404 2449 27 _ _ NNP 40404 2449 28 . . . 40404 2450 1 The the DT 40404 2450 2 rate rate NN 40404 2450 3 of of IN 40404 2450 4 sinking sinking NN 40404 2450 5 can can MD 40404 2450 6 not not RB 40404 2450 7 be be VB 40404 2450 8 greater great JJR 40404 2450 9 than than IN 40404 2450 10 that that DT 40404 2450 11 of of IN 40404 2450 12 the the DT 40404 2450 13 upbuilding upbuilding NN 40404 2450 14 of of IN 40404 2450 15 the the DT 40404 2450 16 reef reef NN 40404 2450 17 , , , 40404 2450 18 since since IN 40404 2450 19 otherwise otherwise RB 40404 2450 20 the the DT 40404 2450 21 corals coral NNS 40404 2450 22 would would MD 40404 2450 23 be be VB 40404 2450 24 carried carry VBN 40404 2450 25 below below IN 40404 2450 26 their -PRON- PRP$ 40404 2450 27 depth depth NN 40404 2450 28 and and CC 40404 2450 29 drowned drown VBD 40404 2450 30 . . . 40404 2451 1 The the DT 40404 2451 2 process process NN 40404 2451 3 is be VBZ 40404 2451 4 illustrated illustrate VBN 40404 2451 5 in in IN 40404 2451 6 Figure Figure NNP 40404 2451 7 161 161 CD 40404 2451 8 , , , 40404 2451 9 where where WRB 40404 2451 10 v v NNP 40404 2451 11 represents represent VBZ 40404 2451 12 a a DT 40404 2451 13 volcanic volcanic JJ 40404 2451 14 island island NN 40404 2451 15 in in IN 40404 2451 16 mid mid NNP 40404 2451 17 ocean ocean NNP 40404 2451 18 undergoing undergo VBG 40404 2451 19 slow slow JJ 40404 2451 20 depression depression NN 40404 2451 21 , , , 40404 2451 22 and and CC 40404 2451 23 _ _ NNP 40404 2451 24 ss ss NNP 40404 2451 25 _ _ NNP 40404 2451 26 the the DT 40404 2451 27 sea sea NN 40404 2451 28 level level NN 40404 2451 29 before before IN 40404 2451 30 the the DT 40404 2451 31 sinking sinking NN 40404 2451 32 began begin VBD 40404 2451 33 , , , 40404 2451 34 when when WRB 40404 2451 35 the the DT 40404 2451 36 island island NN 40404 2451 37 was be VBD 40404 2451 38 surrounded surround VBN 40404 2451 39 by by IN 40404 2451 40 a a DT 40404 2451 41 fringing fringing NN 40404 2451 42 reef reef NN 40404 2451 43 . . . 40404 2452 1 As as IN 40404 2452 2 the the DT 40404 2452 3 island island NN 40404 2452 4 slowly slowly RB 40404 2452 5 sinks sink VBZ 40404 2452 6 , , , 40404 2452 7 the the DT 40404 2452 8 reef reef NN 40404 2452 9 builds build VBZ 40404 2452 10 up up RP 40404 2452 11 with with IN 40404 2452 12 equal equal JJ 40404 2452 13 pace pace NN 40404 2452 14 . . . 40404 2453 1 It -PRON- PRP 40404 2453 2 rears rear VBZ 40404 2453 3 its -PRON- PRP$ 40404 2453 4 seaward seaward NN 40404 2453 5 face face NN 40404 2453 6 more more RBR 40404 2453 7 steep steep JJ 40404 2453 8 than than IN 40404 2453 9 the the DT 40404 2453 10 island island NN 40404 2453 11 slope slope NN 40404 2453 12 , , , 40404 2453 13 and and CC 40404 2453 14 thus thus RB 40404 2453 15 the the DT 40404 2453 16 intervening intervening NN 40404 2453 17 space space NN 40404 2453 18 between between IN 40404 2453 19 the the DT 40404 2453 20 sinking sinking NN 40404 2453 21 , , , 40404 2453 22 narrowing narrow VBG 40404 2453 23 land land NN 40404 2453 24 and and CC 40404 2453 25 the the DT 40404 2453 26 outer outer JJ 40404 2453 27 margin margin NN 40404 2453 28 of of IN 40404 2453 29 the the DT 40404 2453 30 reef reef NN 40404 2453 31 constantly constantly RB 40404 2453 32 widens widen VBZ 40404 2453 33 . . . 40404 2454 1 In in IN 40404 2454 2 this this DT 40404 2454 3 intervening intervene VBG 40404 2454 4 space space NN 40404 2454 5 the the DT 40404 2454 6 corals coral NNS 40404 2454 7 are be VBP 40404 2454 8 more more RBR 40404 2454 9 or or CC 40404 2454 10 less less RBR 40404 2454 11 smothered smother VBN 40404 2454 12 with with IN 40404 2454 13 silt silt NN 40404 2454 14 from from IN 40404 2454 15 the the DT 40404 2454 16 outer outer JJ 40404 2454 17 reef reef NN 40404 2454 18 and and CC 40404 2454 19 from from IN 40404 2454 20 the the DT 40404 2454 21 land land NN 40404 2454 22 , , , 40404 2454 23 and and CC 40404 2454 24 are be VBP 40404 2454 25 also also RB 40404 2454 26 deprived deprive VBN 40404 2454 27 in in IN 40404 2454 28 large large JJ 40404 2454 29 measure measure NN 40404 2454 30 of of IN 40404 2454 31 the the DT 40404 2454 32 needful needful JJ 40404 2454 33 supply supply NN 40404 2454 34 of of IN 40404 2454 35 food food NN 40404 2454 36 and and CC 40404 2454 37 oxygen oxygen NN 40404 2454 38 by by IN 40404 2454 39 the the DT 40404 2454 40 vigorous vigorous JJ 40404 2454 41 growth growth NN 40404 2454 42 of of IN 40404 2454 43 the the DT 40404 2454 44 corals coral NNS 40404 2454 45 on on IN 40404 2454 46 the the DT 40404 2454 47 outer outer JJ 40404 2454 48 rim rim NN 40404 2454 49 . . . 40404 2455 1 The the DT 40404 2455 2 outer outer JJ 40404 2455 3 rim rim NN 40404 2455 4 thus thus RB 40404 2455 5 becomes become VBZ 40404 2455 6 a a DT 40404 2455 7 barrier barrier NN 40404 2455 8 reef reef NN 40404 2455 9 and and CC 40404 2455 10 the the DT 40404 2455 11 inner inner JJ 40404 2455 12 belt belt NN 40404 2455 13 of of IN 40404 2455 14 retarded retarded JJ 40404 2455 15 growth growth NN 40404 2455 16 is be VBZ 40404 2455 17 deepened deepen VBN 40404 2455 18 by by IN 40404 2455 19 subsidence subsidence NN 40404 2455 20 to to IN 40404 2455 21 a a DT 40404 2455 22 ship ship NN 40404 2455 23 channel channel NN 40404 2455 24 , , , 40404 2455 25 _ _ NNP 40404 2455 26 s´s s´s NNP 40404 2455 27 ´ ´ CD 40404 2455 28 _ _ NNP 40404 2455 29 representing represent VBG 40404 2455 30 sea sea NN 40404 2455 31 level level NN 40404 2455 32 at at IN 40404 2455 33 this this DT 40404 2455 34 time time NN 40404 2455 35 . . . 40404 2456 1 The the DT 40404 2456 2 final final JJ 40404 2456 3 stage stage NN 40404 2456 4 , , , 40404 2456 5 where where WRB 40404 2456 6 the the DT 40404 2456 7 island island NN 40404 2456 8 has have VBZ 40404 2456 9 been be VBN 40404 2456 10 carried carry VBN 40404 2456 11 completely completely RB 40404 2456 12 beneath beneath IN 40404 2456 13 the the DT 40404 2456 14 sea sea NN 40404 2456 15 and and CC 40404 2456 16 overgrown overgrow VBN 40404 2456 17 by by IN 40404 2456 18 the the DT 40404 2456 19 contracting contracting NN 40404 2456 20 reef reef NN 40404 2456 21 , , , 40404 2456 22 whose whose WP$ 40404 2456 23 outer outer JJ 40404 2456 24 ring ring NN 40404 2456 25 now now RB 40404 2456 26 forms form VBZ 40404 2456 27 an an DT 40404 2456 28 atoll atoll NN 40404 2456 29 , , , 40404 2456 30 is be VBZ 40404 2456 31 represented represent VBN 40404 2456 32 by by IN 40404 2456 33 _ _ NNP 40404 2456 34 s´´s s´´s NNP 40404 2456 35 ´ ´ CD 40404 2456 36 ´ ´ CD 40404 2456 37 _ _ NNP 40404 2456 38 . . . 40404 2457 1 [ [ -LRB- 40404 2457 2 Illustration illustration NN 40404 2457 3 : : : 40404 2457 4 Fig Fig NNP 40404 2457 5 . . . 40404 2458 1 162 162 CD 40404 2458 2 . . . 40404 2459 1 Barrier Barrier NNP 40404 2459 2 Reef Reef NNP 40404 2459 3 formed form VBD 40404 2459 4 without without IN 40404 2459 5 Subsidence Subsidence NNP 40404 2459 6 _ _ NNP 40404 2459 7 a a DT 40404 2459 8 _ _ NNP 40404 2459 9 , , , 40404 2459 10 zone zone NN 40404 2459 11 of of IN 40404 2459 12 coral coral JJ 40404 2459 13 growth growth NN 40404 2459 14 ; ; : 40404 2459 15 _ _ NNP 40404 2459 16 f f NNP 40404 2459 17 _ _ NNP 40404 2459 18 , , , 40404 2459 19 former former JJ 40404 2459 20 fringing fringing NN 40404 2459 21 reef reef NN 40404 2459 22 ; ; : 40404 2459 23 _ _ NNP 40404 2459 24 t t NNP 40404 2459 25 _ _ NNP 40404 2459 26 , , , 40404 2459 27 talus talus NNP 40404 2459 28 ; ; : 40404 2459 29 _ _ NNP 40404 2459 30 b b NNP 40404 2459 31 _ _ NNP 40404 2459 32 , , , 40404 2459 33 barrier barrier NN 40404 2459 34 reef reef NN 40404 2459 35 ] ] -RRB- 40404 2459 36 In in IN 40404 2459 37 very very RB 40404 2459 38 many many JJ 40404 2459 39 instances instance NNS 40404 2459 40 , , , 40404 2459 41 however however RB 40404 2459 42 , , , 40404 2459 43 atolls atoll NNS 40404 2459 44 and and CC 40404 2459 45 barrier barrier NN 40404 2459 46 reefs reef NNS 40404 2459 47 may may MD 40404 2459 48 be be VB 40404 2459 49 explained explain VBN 40404 2459 50 without without IN 40404 2459 51 subsidence subsidence NN 40404 2459 52 . . . 40404 2460 1 Thus thus RB 40404 2460 2 a a DT 40404 2460 3 barrier barrier NN 40404 2460 4 reef reef NN 40404 2460 5 may may MD 40404 2460 6 be be VB 40404 2460 7 formed form VBN 40404 2460 8 by by IN 40404 2460 9 the the DT 40404 2460 10 seaward seaward NN 40404 2460 11 growth growth NN 40404 2460 12 of of IN 40404 2460 13 a a DT 40404 2460 14 fringing fringe VBG 40404 2460 15 reef reef NN 40404 2460 16 upon upon IN 40404 2460 17 the the DT 40404 2460 18 talus talus NN 40404 2460 19 of of IN 40404 2460 20 its -PRON- PRP$ 40404 2460 21 sea sea NN 40404 2460 22 face face NN 40404 2460 23 . . . 40404 2461 1 In in IN 40404 2461 2 Figure Figure NNP 40404 2461 3 162 162 CD 40404 2461 4 , , , 40404 2461 5 _ _ NNP 40404 2461 6 f f NNP 40404 2461 7 _ _ NNP 40404 2461 8 is be VBZ 40404 2461 9 a a DT 40404 2461 10 fringing fringe VBG 40404 2461 11 reef reef NN 40404 2461 12 whose whose WP$ 40404 2461 13 outer outer JJ 40404 2461 14 wall wall NN 40404 2461 15 rises rise VBZ 40404 2461 16 from from IN 40404 2461 17 about about IN 40404 2461 18 one one CD 40404 2461 19 hundred hundred CD 40404 2461 20 and and CC 40404 2461 21 fifty fifty CD 40404 2461 22 feet foot NNS 40404 2461 23 , , , 40404 2461 24 the the DT 40404 2461 25 lower low JJR 40404 2461 26 limit limit NN 40404 2461 27 of of IN 40404 2461 28 the the DT 40404 2461 29 reef reef NN 40404 2461 30 - - HYPH 40404 2461 31 building building NN 40404 2461 32 species specie NNS 40404 2461 33 . . . 40404 2462 1 At at IN 40404 2462 2 the the DT 40404 2462 3 foot foot NN 40404 2462 4 of of IN 40404 2462 5 this this DT 40404 2462 6 submarine submarine NN 40404 2462 7 cliff cliff NN 40404 2462 8 a a DT 40404 2462 9 talus talus NN 40404 2462 10 of of IN 40404 2462 11 fallen fall VBN 40404 2462 12 blocks blocks NNP 40404 2462 13 t t NN 40404 2462 14 accumulates accumulate NNS 40404 2462 15 , , , 40404 2462 16 and and CC 40404 2462 17 as as IN 40404 2462 18 it -PRON- PRP 40404 2462 19 reaches reach VBZ 40404 2462 20 the the DT 40404 2462 21 zone zone NN 40404 2462 22 of of IN 40404 2462 23 coral coral JJ 40404 2462 24 growth growth NN 40404 2462 25 becomes become VBZ 40404 2462 26 the the DT 40404 2462 27 foundation foundation NN 40404 2462 28 on on IN 40404 2462 29 which which WDT 40404 2462 30 the the DT 40404 2462 31 reef reef NN 40404 2462 32 is be VBZ 40404 2462 33 steadily steadily RB 40404 2462 34 extended extend VBN 40404 2462 35 seaward seaward NN 40404 2462 36 . . . 40404 2463 1 As as IN 40404 2463 2 the the DT 40404 2463 3 reef reef NN 40404 2463 4 widens widen VBZ 40404 2463 5 , , , 40404 2463 6 the the DT 40404 2463 7 polyps polyp NNS 40404 2463 8 of of IN 40404 2463 9 the the DT 40404 2463 10 circumference circumference NN 40404 2463 11 flourish flourish NN 40404 2463 12 , , , 40404 2463 13 while while IN 40404 2463 14 those those DT 40404 2463 15 of of IN 40404 2463 16 the the DT 40404 2463 17 inner inner JJ 40404 2463 18 belt belt NN 40404 2463 19 are be VBP 40404 2463 20 retarded retarded JJ 40404 2463 21 in in IN 40404 2463 22 their -PRON- PRP$ 40404 2463 23 growth growth NN 40404 2463 24 and and CC 40404 2463 25 at at IN 40404 2463 26 last last JJ 40404 2463 27 perish perish NN 40404 2463 28 . . . 40404 2464 1 The the DT 40404 2464 2 coral coral JJ 40404 2464 3 rock rock NN 40404 2464 4 of of IN 40404 2464 5 the the DT 40404 2464 6 inner inner JJ 40404 2464 7 belt belt NN 40404 2464 8 is be VBZ 40404 2464 9 now now RB 40404 2464 10 dissolved dissolve VBN 40404 2464 11 by by IN 40404 2464 12 sea sea NN 40404 2464 13 water water NN 40404 2464 14 and and CC 40404 2464 15 scoured scour VBD 40404 2464 16 out out RP 40404 2464 17 by by IN 40404 2464 18 tidal tidal JJ 40404 2464 19 currents current NNS 40404 2464 20 until until IN 40404 2464 21 it -PRON- PRP 40404 2464 22 gives give VBZ 40404 2464 23 place place NN 40404 2464 24 to to IN 40404 2464 25 a a DT 40404 2464 26 gradually gradually RB 40404 2464 27 deepening deepen VBG 40404 2464 28 ship ship NN 40404 2464 29 channel channel NN 40404 2464 30 , , , 40404 2464 31 while while IN 40404 2464 32 the the DT 40404 2464 33 outer outer JJ 40404 2464 34 margin margin NN 40404 2464 35 is be VBZ 40404 2464 36 left leave VBN 40404 2464 37 as as IN 40404 2464 38 a a DT 40404 2464 39 barrier barrier NN 40404 2464 40 reef reef NN 40404 2464 41 . . . 40404 2465 1 [ [ -LRB- 40404 2465 2 Illustration illustration NN 40404 2465 3 : : : 40404 2465 4 Fig Fig NNP 40404 2465 5 . . . 40404 2466 1 163 163 CD 40404 2466 2 . . . 40404 2467 1 Section section NN 40404 2467 2 of of IN 40404 2467 3 Atoll Atoll NNP 40404 2467 4 on on IN 40404 2467 5 a a DT 40404 2467 6 Shoal Shoal NNP 40404 2467 7 which which WDT 40404 2467 8 has have VBZ 40404 2467 9 been be VBN 40404 2467 10 built build VBN 40404 2467 11 up up RP 40404 2467 12 to to IN 40404 2467 13 near near IN 40404 2467 14 the the DT 40404 2467 15 Surface Surface NNP 40404 2467 16 by by IN 40404 2467 17 Organic organic JJ 40404 2467 18 Deposits deposit NNS 40404 2467 19 upon upon IN 40404 2467 20 a a DT 40404 2467 21 Submarine Submarine NNP 40404 2467 22 Volcanic Volcanic NNP 40404 2467 23 Peak Peak NNP 40404 2467 24 _ _ NNP 40404 2467 25 v v NNP 40404 2467 26 _ _ NNP 40404 2467 27 , , , 40404 2467 28 volcano volcano NN 40404 2467 29 ; ; : 40404 2467 30 _ _ NNP 40404 2467 31 f f NNP 40404 2467 32 _ _ NNP 40404 2467 33 , , , 40404 2467 34 foraminiferal foraminiferal JJ 40404 2467 35 deposits deposit NNS 40404 2467 36 ; ; : 40404 2467 37 _ _ NNP 40404 2467 38 m m NNP 40404 2467 39 _ _ NNP 40404 2467 40 , , , 40404 2467 41 molluscous molluscous JJ 40404 2467 42 shell shell NN 40404 2467 43 deposits deposit NNS 40404 2467 44 ; ; : 40404 2467 45 _ _ NNP 40404 2467 46 c c NNP 40404 2467 47 _ _ NNP 40404 2467 48 , , , 40404 2467 49 coral coral JJ 40404 2467 50 reef reef NN 40404 2467 51 ; ; : 40404 2467 52 _ _ NNP 40404 2467 53 sl sl NN 40404 2467 54 _ _ NNP 40404 2467 55 , , , 40404 2467 56 sea sea NN 40404 2467 57 level level NN 40404 2467 58 ] ] -RRB- 40404 2467 59 In in IN 40404 2467 60 much much RB 40404 2467 61 the the DT 40404 2467 62 same same JJ 40404 2467 63 way way NN 40404 2467 64 atolls atoll NNS 40404 2467 65 may may MD 40404 2467 66 be be VB 40404 2467 67 built build VBN 40404 2467 68 on on IN 40404 2467 69 any any DT 40404 2467 70 shoal shoal NN 40404 2467 71 which which WDT 40404 2467 72 lies lie VBZ 40404 2467 73 within within IN 40404 2467 74 the the DT 40404 2467 75 zone zone NN 40404 2467 76 of of IN 40404 2467 77 coral coral JJ 40404 2467 78 growth growth NN 40404 2467 79 . . . 40404 2468 1 Such such JJ 40404 2468 2 shoals shoal NNS 40404 2468 3 may may MD 40404 2468 4 be be VB 40404 2468 5 produced produce VBN 40404 2468 6 when when WRB 40404 2468 7 volcanic volcanic JJ 40404 2468 8 islands island NNS 40404 2468 9 are be VBP 40404 2468 10 leveled level VBN 40404 2468 11 by by IN 40404 2468 12 waves wave NNS 40404 2468 13 and and CC 40404 2468 14 ocean ocean NN 40404 2468 15 currents current NNS 40404 2468 16 , , , 40404 2468 17 and and CC 40404 2468 18 when when WRB 40404 2468 19 submarine submarine NN 40404 2468 20 plateaus plateaus NN 40404 2468 21 , , , 40404 2468 22 ridges ridge NNS 40404 2468 23 , , , 40404 2468 24 and and CC 40404 2468 25 peaks peak NNS 40404 2468 26 are be VBP 40404 2468 27 built build VBN 40404 2468 28 up up RP 40404 2468 29 by by IN 40404 2468 30 various various JJ 40404 2468 31 organic organic JJ 40404 2468 32 agencies agency NNS 40404 2468 33 , , , 40404 2468 34 such such JJ 40404 2468 35 as as IN 40404 2468 36 molluscous molluscous JJ 40404 2468 37 and and CC 40404 2468 38 foraminiferal foraminiferal JJ 40404 2468 39 shell shell NN 40404 2468 40 deposits deposit NNS 40404 2468 41 ( ( -LRB- 40404 2468 42 Fig fig NN 40404 2468 43 . . . 40404 2469 1 163 163 CD 40404 2469 2 ) ) -RRB- 40404 2469 3 . . . 40404 2470 1 The the DT 40404 2470 2 reef reef NN 40404 2470 3 - - HYPH 40404 2470 4 building building NN 40404 2470 5 corals coral NNS 40404 2470 6 , , , 40404 2470 7 whose whose WP$ 40404 2470 8 eggs egg NNS 40404 2470 9 are be VBP 40404 2470 10 drifted drift VBN 40404 2470 11 widely widely RB 40404 2470 12 over over IN 40404 2470 13 the the DT 40404 2470 14 tropic tropic NNP 40404 2470 15 seas sea NNS 40404 2470 16 by by IN 40404 2470 17 ocean ocean NN 40404 2470 18 currents current NNS 40404 2470 19 , , , 40404 2470 20 colonize colonize VB 40404 2470 21 such such JJ 40404 2470 22 submarine submarine NN 40404 2470 23 foundations foundation NNS 40404 2470 24 wherever wherever WRB 40404 2470 25 the the DT 40404 2470 26 conditions condition NNS 40404 2470 27 are be VBP 40404 2470 28 favorable favorable JJ 40404 2470 29 for for IN 40404 2470 30 their -PRON- PRP$ 40404 2470 31 growth growth NN 40404 2470 32 . . . 40404 2471 1 As as IN 40404 2471 2 the the DT 40404 2471 3 reef reef NN 40404 2471 4 approaches approach VBZ 40404 2471 5 the the DT 40404 2471 6 surface surface NN 40404 2471 7 the the DT 40404 2471 8 corals coral NNS 40404 2471 9 of of IN 40404 2471 10 the the DT 40404 2471 11 inner inner JJ 40404 2471 12 area area NN 40404 2471 13 are be VBP 40404 2471 14 smothered smother VBN 40404 2471 15 by by IN 40404 2471 16 silt silt NN 40404 2471 17 and and CC 40404 2471 18 starved starve VBD 40404 2471 19 , , , 40404 2471 20 and and CC 40404 2471 21 their -PRON- PRP$ 40404 2471 22 Submarine Submarine NNP 40404 2471 23 Volcanic Volcanic NNP 40404 2471 24 Peak Peak NNP 40404 2471 25 hard hard JJ 40404 2471 26 parts part NNS 40404 2471 27 are be VBP 40404 2471 28 dissolved dissolve VBN 40404 2471 29 and and CC 40404 2471 30 scoured scour VBN 40404 2471 31 away away RB 40404 2471 32 ; ; : 40404 2471 33 while while IN 40404 2471 34 those those DT 40404 2471 35 of of IN 40404 2471 36 the the DT 40404 2471 37 circumference circumference NN 40404 2471 38 , , , 40404 2471 39 with with IN 40404 2471 40 abundant abundant JJ 40404 2471 41 food food NN 40404 2471 42 supply supply NN 40404 2471 43 , , , 40404 2471 44 nourish nourish NN 40404 2471 45 and and CC 40404 2471 46 build build VB 40404 2471 47 the the DT 40404 2471 48 ring ring NN 40404 2471 49 of of IN 40404 2471 50 the the DT 40404 2471 51 atoll atoll NN 40404 2471 52 . . . 40404 2472 1 Atolls atoll NNS 40404 2472 2 may may MD 40404 2472 3 be be VB 40404 2472 4 produced produce VBN 40404 2472 5 also also RB 40404 2472 6 by by IN 40404 2472 7 the the DT 40404 2472 8 backward backward JJ 40404 2472 9 drift drift NN 40404 2472 10 of of IN 40404 2472 11 sand sand NN 40404 2472 12 from from IN 40404 2472 13 either either DT 40404 2472 14 end end NN 40404 2472 15 of of IN 40404 2472 16 a a DT 40404 2472 17 crescentic crescentic JJ 40404 2472 18 coral coral JJ 40404 2472 19 reef reef NN 40404 2472 20 or or CC 40404 2472 21 island island NN 40404 2472 22 , , , 40404 2472 23 the the DT 40404 2472 24 spits spit NNS 40404 2472 25 uniting unite VBG 40404 2472 26 in in IN 40404 2472 27 the the DT 40404 2472 28 quiet quiet JJ 40404 2472 29 water water NN 40404 2472 30 of of IN 40404 2472 31 the the DT 40404 2472 32 lee lee NNP 40404 2472 33 to to TO 40404 2472 34 inclose inclose VB 40404 2472 35 a a DT 40404 2472 36 lagoon lagoon NN 40404 2472 37 . . . 40404 2473 1 In in IN 40404 2473 2 the the DT 40404 2473 3 Maldive Maldive NNP 40404 2473 4 Archipelago Archipelago NNP 40404 2473 5 all all DT 40404 2473 6 gradations gradation NNS 40404 2473 7 between between IN 40404 2473 8 crescent crescent NN 40404 2473 9 - - HYPH 40404 2473 10 shaped shape VBN 40404 2473 11 islets islet NNS 40404 2473 12 and and CC 40404 2473 13 complete complete JJ 40404 2473 14 atoll atoll NN 40404 2473 15 rings ring NNS 40404 2473 16 have have VBP 40404 2473 17 been be VBN 40404 2473 18 observed observe VBN 40404 2473 19 . . . 40404 2474 1 In in IN 40404 2474 2 a a DT 40404 2474 3 number number NN 40404 2474 4 of of IN 40404 2474 5 instances instance NNS 40404 2474 6 where where WRB 40404 2474 7 coral coral JJ 40404 2474 8 reefs reef NNS 40404 2474 9 have have VBP 40404 2474 10 been be VBN 40404 2474 11 raised raise VBN 40404 2474 12 by by IN 40404 2474 13 movements movement NNS 40404 2474 14 of of IN 40404 2474 15 the the DT 40404 2474 16 earth earth NN 40404 2474 17 's 's POS 40404 2474 18 crust crust NN 40404 2474 19 , , , 40404 2474 20 the the DT 40404 2474 21 reef reef NN 40404 2474 22 formation formation NN 40404 2474 23 is be VBZ 40404 2474 24 found find VBN 40404 2474 25 to to TO 40404 2474 26 be be VB 40404 2474 27 a a DT 40404 2474 28 thin thin JJ 40404 2474 29 veneer veneer NN 40404 2474 30 built build VBN 40404 2474 31 upon upon IN 40404 2474 32 a a DT 40404 2474 33 foundation foundation NN 40404 2474 34 of of IN 40404 2474 35 other other JJ 40404 2474 36 deposits deposit NNS 40404 2474 37 . . . 40404 2475 1 Thus thus RB 40404 2475 2 Christmas Christmas NNP 40404 2475 3 Island Island NNP 40404 2475 4 , , , 40404 2475 5 in in IN 40404 2475 6 the the DT 40404 2475 7 Indian Indian NNP 40404 2475 8 Ocean Ocean NNP 40404 2475 9 , , , 40404 2475 10 is be VBZ 40404 2475 11 a a DT 40404 2475 12 volcanic volcanic JJ 40404 2475 13 pile pile NN 40404 2475 14 rising rise VBG 40404 2475 15 eleven eleven CD 40404 2475 16 hundred hundred CD 40404 2475 17 feet foot NNS 40404 2475 18 above above IN 40404 2475 19 sea sea NN 40404 2475 20 level level NN 40404 2475 21 and and CC 40404 2475 22 fifteen fifteen CD 40404 2475 23 thousand thousand CD 40404 2475 24 five five CD 40404 2475 25 hundred hundred CD 40404 2475 26 feet foot NNS 40404 2475 27 above above IN 40404 2475 28 the the DT 40404 2475 29 bottom bottom NN 40404 2475 30 of of IN 40404 2475 31 the the DT 40404 2475 32 sea sea NN 40404 2475 33 . . . 40404 2476 1 The the DT 40404 2476 2 summit summit NN 40404 2476 3 is be VBZ 40404 2476 4 a a DT 40404 2476 5 plateau plateau NN 40404 2476 6 surrounded surround VBN 40404 2476 7 by by IN 40404 2476 8 a a DT 40404 2476 9 rim rim NN 40404 2476 10 of of IN 40404 2476 11 hills hill NNS 40404 2476 12 of of IN 40404 2476 13 reef reef NN 40404 2476 14 formation formation NN 40404 2476 15 , , , 40404 2476 16 which which WDT 40404 2476 17 represent represent VBP 40404 2476 18 the the DT 40404 2476 19 ring ring NN 40404 2476 20 of of IN 40404 2476 21 islets islet NNS 40404 2476 22 of of IN 40404 2476 23 an an DT 40404 2476 24 ancient ancient JJ 40404 2476 25 atoll atoll NN 40404 2476 26 . . . 40404 2477 1 Beneath beneath IN 40404 2477 2 the the DT 40404 2477 3 reef reef NN 40404 2477 4 are be VBP 40404 2477 5 thick thick JJ 40404 2477 6 beds bed NNS 40404 2477 7 of of IN 40404 2477 8 limestone limestone NN 40404 2477 9 , , , 40404 2477 10 composed compose VBN 40404 2477 11 largely largely RB 40404 2477 12 of of IN 40404 2477 13 the the DT 40404 2477 14 remains remain NNS 40404 2477 15 of of IN 40404 2477 16 foraminifers foraminifer NNS 40404 2477 17 , , , 40404 2477 18 which which WDT 40404 2477 19 cover cover VBP 40404 2477 20 the the DT 40404 2477 21 lavas lavas NN 40404 2477 22 and and CC 40404 2477 23 fragmental fragmental JJ 40404 2477 24 materials material NNS 40404 2477 25 of of IN 40404 2477 26 the the DT 40404 2477 27 old old JJ 40404 2477 28 submarine submarine NN 40404 2477 29 volcano volcano NN 40404 2477 30 . . . 40404 2478 1 Among among IN 40404 2478 2 the the DT 40404 2478 3 ancient ancient JJ 40404 2478 4 sediments sediment NNS 40404 2478 5 which which WDT 40404 2478 6 now now RB 40404 2478 7 form form VBP 40404 2478 8 the the DT 40404 2478 9 stratified stratified JJ 40404 2478 10 rocks rock NNS 40404 2478 11 of of IN 40404 2478 12 the the DT 40404 2478 13 land land NN 40404 2478 14 there there EX 40404 2478 15 occur occur VBP 40404 2478 16 many many JJ 40404 2478 17 thin thin JJ 40404 2478 18 reef reef NN 40404 2478 19 deposits deposit NNS 40404 2478 20 , , , 40404 2478 21 but but CC 40404 2478 22 none none NN 40404 2478 23 are be VBP 40404 2478 24 known know VBN 40404 2478 25 of of IN 40404 2478 26 the the DT 40404 2478 27 immense immense JJ 40404 2478 28 thickness thickness NN 40404 2478 29 which which WDT 40404 2478 30 modern modern JJ 40404 2478 31 reefs reef NNS 40404 2478 32 are be VBP 40404 2478 33 supposed suppose VBN 40404 2478 34 to to TO 40404 2478 35 reach reach VB 40404 2478 36 according accord VBG 40404 2478 37 to to IN 40404 2478 38 the the DT 40404 2478 39 theory theory NN 40404 2478 40 of of IN 40404 2478 41 subsidence subsidence NN 40404 2478 42 . . . 40404 2479 1 Barrier barrier NN 40404 2479 2 and and CC 40404 2479 3 fringing fringing NN 40404 2479 4 reefs reef NNS 40404 2479 5 are be VBP 40404 2479 6 commonly commonly RB 40404 2479 7 interrupted interrupt VBN 40404 2479 8 off off IN 40404 2479 9 the the DT 40404 2479 10 mouths mouth NNS 40404 2479 11 of of IN 40404 2479 12 rivers river NNS 40404 2479 13 . . . 40404 2480 1 Why why WRB 40404 2480 2 ? ? . 40404 2481 1 = = NFP 40404 2481 2 Summary.= Summary.= NNS 40404 2481 3 We -PRON- PRP 40404 2481 4 have have VBP 40404 2481 5 seen see VBN 40404 2481 6 that that IN 40404 2481 7 the the DT 40404 2481 8 ocean ocean NN 40404 2481 9 bed bed NN 40404 2481 10 is be VBZ 40404 2481 11 the the DT 40404 2481 12 goal goal NN 40404 2481 13 to to TO 40404 2481 14 which which WDT 40404 2481 15 the the DT 40404 2481 16 waste waste NN 40404 2481 17 of of IN 40404 2481 18 the the DT 40404 2481 19 rocks rock NNS 40404 2481 20 of of IN 40404 2481 21 the the DT 40404 2481 22 land land NN 40404 2481 23 at at IN 40404 2481 24 last last JJ 40404 2481 25 arrives arrive NNS 40404 2481 26 . . . 40404 2482 1 Their -PRON- PRP$ 40404 2482 2 soluble soluble JJ 40404 2482 3 parts part NNS 40404 2482 4 , , , 40404 2482 5 dissolved dissolve VBN 40404 2482 6 by by IN 40404 2482 7 underground underground JJ 40404 2482 8 waters water NNS 40404 2482 9 and and CC 40404 2482 10 carried carry VBD 40404 2482 11 to to IN 40404 2482 12 the the DT 40404 2482 13 sea sea NN 40404 2482 14 by by IN 40404 2482 15 rivers river NNS 40404 2482 16 , , , 40404 2482 17 are be VBP 40404 2482 18 largely largely RB 40404 2482 19 built build VBN 40404 2482 20 up up RP 40404 2482 21 by by IN 40404 2482 22 living live VBG 40404 2482 23 creatures creature NNS 40404 2482 24 into into IN 40404 2482 25 vast vast JJ 40404 2482 26 sheets sheet NNS 40404 2482 27 of of IN 40404 2482 28 limestone limestone NN 40404 2482 29 . . . 40404 2483 1 The the DT 40404 2483 2 less less RBR 40404 2483 3 soluble soluble JJ 40404 2483 4 portions portion NNS 40404 2483 5 -- -- : 40404 2483 6 the the DT 40404 2483 7 waste waste NN 40404 2483 8 brought bring VBN 40404 2483 9 in in RP 40404 2483 10 by by IN 40404 2483 11 streams stream NNS 40404 2483 12 and and CC 40404 2483 13 the the DT 40404 2483 14 waste waste NN 40404 2483 15 of of IN 40404 2483 16 the the DT 40404 2483 17 shore shore NN 40404 2483 18 -- -- : 40404 2483 19 form form VBP 40404 2483 20 the the DT 40404 2483 21 muds mud NNS 40404 2483 22 and and CC 40404 2483 23 sands sand NNS 40404 2483 24 of of IN 40404 2483 25 continental continental JJ 40404 2483 26 deltas delta NNS 40404 2483 27 . . . 40404 2484 1 All all DT 40404 2484 2 of of IN 40404 2484 3 these these DT 40404 2484 4 sea sea NN 40404 2484 5 deposits deposit NNS 40404 2484 6 consolidate consolidate VBP 40404 2484 7 and and CC 40404 2484 8 harden harden VBP 40404 2484 9 , , , 40404 2484 10 and and CC 40404 2484 11 the the DT 40404 2484 12 coherent coherent JJ 40404 2484 13 rocks rock NNS 40404 2484 14 of of IN 40404 2484 15 the the DT 40404 2484 16 land land NN 40404 2484 17 are be VBP 40404 2484 18 thus thus RB 40404 2484 19 reconstructed reconstruct VBN 40404 2484 20 on on IN 40404 2484 21 the the DT 40404 2484 22 ocean ocean NN 40404 2484 23 floor floor NN 40404 2484 24 . . . 40404 2485 1 But but CC 40404 2485 2 the the DT 40404 2485 3 destination destination NN 40404 2485 4 is be VBZ 40404 2485 5 not not RB 40404 2485 6 a a DT 40404 2485 7 final final JJ 40404 2485 8 one one CD 40404 2485 9 . . . 40404 2486 1 The the DT 40404 2486 2 stratified stratified JJ 40404 2486 3 rocks rock NNS 40404 2486 4 of of IN 40404 2486 5 the the DT 40404 2486 6 land land NN 40404 2486 7 are be VBP 40404 2486 8 for for IN 40404 2486 9 the the DT 40404 2486 10 most most JJS 40404 2486 11 part part NN 40404 2486 12 ancient ancient JJ 40404 2486 13 deposits deposit NNS 40404 2486 14 of of IN 40404 2486 15 the the DT 40404 2486 16 sea sea NN 40404 2486 17 , , , 40404 2486 18 which which WDT 40404 2486 19 have have VBP 40404 2486 20 been be VBN 40404 2486 21 lifted lift VBN 40404 2486 22 above above IN 40404 2486 23 sea sea NN 40404 2486 24 level level NN 40404 2486 25 ; ; : 40404 2486 26 and and CC 40404 2486 27 we -PRON- PRP 40404 2486 28 may may MD 40404 2486 29 believe believe VB 40404 2486 30 that that IN 40404 2486 31 the the DT 40404 2486 32 sediments sediment NNS 40404 2486 33 now now RB 40404 2486 34 being be VBG 40404 2486 35 laid lay VBN 40404 2486 36 offshore offshore RB 40404 2486 37 are be VBP 40404 2486 38 the the DT 40404 2486 39 " " `` 40404 2486 40 dust dust NN 40404 2486 41 of of IN 40404 2486 42 continents continent NNS 40404 2486 43 to to TO 40404 2486 44 be be VB 40404 2486 45 , , , 40404 2486 46 " " '' 40404 2486 47 and and CC 40404 2486 48 will will MD 40404 2486 49 some some DT 40404 2486 50 time time NN 40404 2486 51 emerge emerge VB 40404 2486 52 to to TO 40404 2486 53 form form VB 40404 2486 54 additions addition NNS 40404 2486 55 to to IN 40404 2486 56 the the DT 40404 2486 57 land land NN 40404 2486 58 . . . 40404 2487 1 We -PRON- PRP 40404 2487 2 are be VBP 40404 2487 3 now now RB 40404 2487 4 to to TO 40404 2487 5 study study VB 40404 2487 6 the the DT 40404 2487 7 movements movement NNS 40404 2487 8 of of IN 40404 2487 9 the the DT 40404 2487 10 earth earth NN 40404 2487 11 's 's POS 40404 2487 12 crust crust NN 40404 2487 13 which which WDT 40404 2487 14 restore restore VBP 40404 2487 15 the the DT 40404 2487 16 sediments sediment NNS 40404 2487 17 of of IN 40404 2487 18 the the DT 40404 2487 19 sea sea NN 40404 2487 20 to to IN 40404 2487 21 the the DT 40404 2487 22 light light NN 40404 2487 23 of of IN 40404 2487 24 day day NN 40404 2487 25 , , , 40404 2487 26 and and CC 40404 2487 27 to to IN 40404 2487 28 whose whose WP$ 40404 2487 29 beneficence beneficence NN 40404 2487 30 we -PRON- PRP 40404 2487 31 owe owe VBP 40404 2487 32 the the DT 40404 2487 33 habitable habitable JJ 40404 2487 34 lands land NNS 40404 2487 35 of of IN 40404 2487 36 the the DT 40404 2487 37 present present NN 40404 2487 38 . . . 40404 2488 1 PART PART NNP 40404 2488 2 II II NNP 40404 2488 3 INTERNAL INTERNAL NNP 40404 2488 4 GEOLOGICAL GEOLOGICAL NNP 40404 2488 5 AGENCIES AGENCIES NNP 40404 2488 6 CHAPTER chapter NN 40404 2488 7 IX ix NN 40404 2488 8 MOVEMENTS movement NNS 40404 2488 9 OF of IN 40404 2488 10 THE the DT 40404 2488 11 EARTH EARTH NNP 40404 2488 12 'S 's POS 40404 2488 13 CRUST CRUST NNS 40404 2488 14 The the DT 40404 2488 15 geological geological JJ 40404 2488 16 agencies agency NNS 40404 2488 17 which which WDT 40404 2488 18 we -PRON- PRP 40404 2488 19 have have VBP 40404 2488 20 so so RB 40404 2488 21 far far RB 40404 2488 22 studied studied JJ 40404 2488 23 -- -- : 40404 2488 24 weathering weather VBG 40404 2488 25 , , , 40404 2488 26 streams stream NNS 40404 2488 27 , , , 40404 2488 28 underground underground JJ 40404 2488 29 waters water NNS 40404 2488 30 , , , 40404 2488 31 glaciers glacier NNS 40404 2488 32 , , , 40404 2488 33 winds wind NNS 40404 2488 34 , , , 40404 2488 35 and and CC 40404 2488 36 the the DT 40404 2488 37 ocean ocean NN 40404 2488 38 -- -- : 40404 2488 39 all all DT 40404 2488 40 work work VBP 40404 2488 41 upon upon IN 40404 2488 42 the the DT 40404 2488 43 earth earth NN 40404 2488 44 from from IN 40404 2488 45 without without IN 40404 2488 46 , , , 40404 2488 47 and and CC 40404 2488 48 all all DT 40404 2488 49 are be VBP 40404 2488 50 set set VBN 40404 2488 51 in in IN 40404 2488 52 motion motion NN 40404 2488 53 by by IN 40404 2488 54 an an DT 40404 2488 55 energy energy NN 40404 2488 56 external external JJ 40404 2488 57 to to IN 40404 2488 58 the the DT 40404 2488 59 earth earth NN 40404 2488 60 , , , 40404 2488 61 namely namely RB 40404 2488 62 , , , 40404 2488 63 the the DT 40404 2488 64 radiant radiant JJ 40404 2488 65 energy energy NN 40404 2488 66 of of IN 40404 2488 67 the the DT 40404 2488 68 sun sun NN 40404 2488 69 . . . 40404 2489 1 All all DT 40404 2489 2 , , , 40404 2489 3 too too RB 40404 2489 4 , , , 40404 2489 5 have have VBP 40404 2489 6 a a DT 40404 2489 7 common common JJ 40404 2489 8 tendency tendency NN 40404 2489 9 to to TO 40404 2489 10 reduce reduce VB 40404 2489 11 the the DT 40404 2489 12 inequalities inequality NNS 40404 2489 13 of of IN 40404 2489 14 the the DT 40404 2489 15 earth earth NN 40404 2489 16 's 's POS 40404 2489 17 surface surface NN 40404 2489 18 by by IN 40404 2489 19 leveling level VBG 40404 2489 20 the the DT 40404 2489 21 lands land NNS 40404 2489 22 and and CC 40404 2489 23 strewing strew VBG 40404 2489 24 their -PRON- PRP$ 40404 2489 25 waste waste NN 40404 2489 26 beneath beneath IN 40404 2489 27 the the DT 40404 2489 28 sea sea NN 40404 2489 29 . . . 40404 2490 1 But but CC 40404 2490 2 despite despite IN 40404 2490 3 the the DT 40404 2490 4 unceasing uncease VBG 40404 2490 5 efforts effort NNS 40404 2490 6 of of IN 40404 2490 7 these these DT 40404 2490 8 external external JJ 40404 2490 9 agencies agency NNS 40404 2490 10 , , , 40404 2490 11 they -PRON- PRP 40404 2490 12 have have VBP 40404 2490 13 not not RB 40404 2490 14 destroyed destroy VBN 40404 2490 15 the the DT 40404 2490 16 continents continent NNS 40404 2490 17 , , , 40404 2490 18 which which WDT 40404 2490 19 still still RB 40404 2490 20 rear rear VBP 40404 2490 21 their -PRON- PRP$ 40404 2490 22 broad broad JJ 40404 2490 23 plains plain NNS 40404 2490 24 and and CC 40404 2490 25 great great JJ 40404 2490 26 plateaus plateaus NN 40404 2490 27 and and CC 40404 2490 28 mountain mountain NN 40404 2490 29 ranges range NNS 40404 2490 30 above above IN 40404 2490 31 the the DT 40404 2490 32 sea sea NN 40404 2490 33 . . . 40404 2491 1 Either either RB 40404 2491 2 , , , 40404 2491 3 then then RB 40404 2491 4 , , , 40404 2491 5 the the DT 40404 2491 6 earth earth NN 40404 2491 7 is be VBZ 40404 2491 8 very very RB 40404 2491 9 young young JJ 40404 2491 10 and and CC 40404 2491 11 the the DT 40404 2491 12 agents agent NNS 40404 2491 13 of of IN 40404 2491 14 denudation denudation NN 40404 2491 15 have have VBP 40404 2491 16 not not RB 40404 2491 17 yet yet RB 40404 2491 18 had have VBN 40404 2491 19 time time NN 40404 2491 20 to to TO 40404 2491 21 do do VB 40404 2491 22 their -PRON- PRP$ 40404 2491 23 work work NN 40404 2491 24 , , , 40404 2491 25 or or CC 40404 2491 26 they -PRON- PRP 40404 2491 27 have have VBP 40404 2491 28 been be VBN 40404 2491 29 opposed oppose VBN 40404 2491 30 successfully successfully RB 40404 2491 31 by by IN 40404 2491 32 other other JJ 40404 2491 33 forces force NNS 40404 2491 34 . . . 40404 2492 1 We -PRON- PRP 40404 2492 2 enter enter VBP 40404 2492 3 now now RB 40404 2492 4 upon upon IN 40404 2492 5 a a DT 40404 2492 6 department department NN 40404 2492 7 of of IN 40404 2492 8 our -PRON- PRP$ 40404 2492 9 science science NN 40404 2492 10 which which WDT 40404 2492 11 treats treat NNS 40404 2492 12 of of IN 40404 2492 13 forces force NNS 40404 2492 14 which which WDT 40404 2492 15 work work VBP 40404 2492 16 upon upon IN 40404 2492 17 the the DT 40404 2492 18 earth earth NN 40404 2492 19 from from IN 40404 2492 20 within within IN 40404 2492 21 , , , 40404 2492 22 and and CC 40404 2492 23 increase increase VB 40404 2492 24 the the DT 40404 2492 25 inequalities inequality NNS 40404 2492 26 of of IN 40404 2492 27 its -PRON- PRP$ 40404 2492 28 surface surface NN 40404 2492 29 . . . 40404 2493 1 It -PRON- PRP 40404 2493 2 is be VBZ 40404 2493 3 they -PRON- PRP 40404 2493 4 which which WDT 40404 2493 5 uplift uplift VBP 40404 2493 6 and and CC 40404 2493 7 recreate recreate VB 40404 2493 8 the the DT 40404 2493 9 lands land NNS 40404 2493 10 which which WDT 40404 2493 11 the the DT 40404 2493 12 agents agent NNS 40404 2493 13 of of IN 40404 2493 14 denudation denudation NN 40404 2493 15 are be VBP 40404 2493 16 continually continually RB 40404 2493 17 destroying destroy VBG 40404 2493 18 ; ; : 40404 2493 19 it -PRON- PRP 40404 2493 20 is be VBZ 40404 2493 21 they -PRON- PRP 40404 2493 22 which which WDT 40404 2493 23 deepen deepen VBP 40404 2493 24 the the DT 40404 2493 25 ocean ocean NN 40404 2493 26 bed bed NN 40404 2493 27 and and CC 40404 2493 28 thus thus RB 40404 2493 29 withdraw withdraw VB 40404 2493 30 its -PRON- PRP$ 40404 2493 31 waters water NNS 40404 2493 32 from from IN 40404 2493 33 the the DT 40404 2493 34 shores shore NNS 40404 2493 35 . . . 40404 2494 1 At at IN 40404 2494 2 times time NNS 40404 2494 3 also also RB 40404 2494 4 these these DT 40404 2494 5 forces force NNS 40404 2494 6 have have VBP 40404 2494 7 aided aid VBN 40404 2494 8 in in IN 40404 2494 9 the the DT 40404 2494 10 destruction destruction NN 40404 2494 11 of of IN 40404 2494 12 the the DT 40404 2494 13 lands land NNS 40404 2494 14 by by IN 40404 2494 15 gradually gradually RB 40404 2494 16 lowering lower VBG 40404 2494 17 them -PRON- PRP 40404 2494 18 and and CC 40404 2494 19 bringing bring VBG 40404 2494 20 in in RP 40404 2494 21 the the DT 40404 2494 22 sea sea NN 40404 2494 23 . . . 40404 2495 1 Under under IN 40404 2495 2 the the DT 40404 2495 3 action action NN 40404 2495 4 of of IN 40404 2495 5 forces force NNS 40404 2495 6 resident resident NN 40404 2495 7 within within IN 40404 2495 8 the the DT 40404 2495 9 earth earth NN 40404 2495 10 the the DT 40404 2495 11 crust crust NN 40404 2495 12 slowly slowly RB 40404 2495 13 rises rise VBZ 40404 2495 14 or or CC 40404 2495 15 sinks sink VBZ 40404 2495 16 ; ; : 40404 2495 17 from from IN 40404 2495 18 time time NN 40404 2495 19 to to IN 40404 2495 20 time time NN 40404 2495 21 it -PRON- PRP 40404 2495 22 has have VBZ 40404 2495 23 been be VBN 40404 2495 24 folded fold VBN 40404 2495 25 and and CC 40404 2495 26 broken break VBN 40404 2495 27 ; ; : 40404 2495 28 while while IN 40404 2495 29 vast vast JJ 40404 2495 30 quantities quantity NNS 40404 2495 31 of of IN 40404 2495 32 molten molten JJ 40404 2495 33 rock rock NN 40404 2495 34 have have VBP 40404 2495 35 been be VBN 40404 2495 36 pressed press VBN 40404 2495 37 up up RP 40404 2495 38 into into IN 40404 2495 39 it -PRON- PRP 40404 2495 40 from from IN 40404 2495 41 beneath beneath RB 40404 2495 42 and and CC 40404 2495 43 outpoured outpoure VBD 40404 2495 44 upon upon IN 40404 2495 45 its -PRON- PRP$ 40404 2495 46 surface surface NN 40404 2495 47 . . . 40404 2496 1 We -PRON- PRP 40404 2496 2 shall shall MD 40404 2496 3 take take VB 40404 2496 4 up up RP 40404 2496 5 these these DT 40404 2496 6 phenomena phenomenon NNS 40404 2496 7 in in IN 40404 2496 8 the the DT 40404 2496 9 following following JJ 40404 2496 10 chapters chapter NNS 40404 2496 11 , , , 40404 2496 12 which which WDT 40404 2496 13 treat treat VBP 40404 2496 14 of of IN 40404 2496 15 upheavals upheaval NNS 40404 2496 16 and and CC 40404 2496 17 depressions depression NNS 40404 2496 18 of of IN 40404 2496 19 the the DT 40404 2496 20 crust crust NN 40404 2496 21 , , , 40404 2496 22 foldings folding NNS 40404 2496 23 and and CC 40404 2496 24 fractures fracture NNS 40404 2496 25 of of IN 40404 2496 26 the the DT 40404 2496 27 crust crust NN 40404 2496 28 , , , 40404 2496 29 earthquakes earthquake NNS 40404 2496 30 , , , 40404 2496 31 volcanoes volcano NNS 40404 2496 32 , , , 40404 2496 33 the the DT 40404 2496 34 interior interior JJ 40404 2496 35 conditions condition NNS 40404 2496 36 of of IN 40404 2496 37 the the DT 40404 2496 38 earth earth NN 40404 2496 39 , , , 40404 2496 40 mineral mineral NN 40404 2496 41 veins vein NNS 40404 2496 42 , , , 40404 2496 43 and and CC 40404 2496 44 metamorphism metamorphism NN 40404 2496 45 . . . 40404 2497 1 Oscillations oscillation NNS 40404 2497 2 of of IN 40404 2497 3 the the DT 40404 2497 4 Crust Crust NNP 40404 2497 5 Of of IN 40404 2497 6 the the DT 40404 2497 7 various various JJ 40404 2497 8 movements movement NNS 40404 2497 9 of of IN 40404 2497 10 the the DT 40404 2497 11 crust crust NN 40404 2497 12 due due JJ 40404 2497 13 to to IN 40404 2497 14 internal internal JJ 40404 2497 15 agencies agency NNS 40404 2497 16 we -PRON- PRP 40404 2497 17 will will MD 40404 2497 18 consider consider VB 40404 2497 19 first first RB 40404 2497 20 those those DT 40404 2497 21 called call VBN 40404 2497 22 oscillations oscillation NNS 40404 2497 23 , , , 40404 2497 24 which which WDT 40404 2497 25 lift lift VBP 40404 2497 26 or or CC 40404 2497 27 depress depress VB 40404 2497 28 large large JJ 40404 2497 29 areas area NNS 40404 2497 30 so so RB 40404 2497 31 slowly slowly RB 40404 2497 32 that that IN 40404 2497 33 a a DT 40404 2497 34 long long JJ 40404 2497 35 time time NN 40404 2497 36 is be VBZ 40404 2497 37 needed need VBN 40404 2497 38 to to TO 40404 2497 39 produce produce VB 40404 2497 40 perceptible perceptible JJ 40404 2497 41 changes change NNS 40404 2497 42 of of IN 40404 2497 43 level level NN 40404 2497 44 , , , 40404 2497 45 and and CC 40404 2497 46 which which WDT 40404 2497 47 leave leave VBP 40404 2497 48 the the DT 40404 2497 49 strata strata NN 40404 2497 50 in in IN 40404 2497 51 nearly nearly RB 40404 2497 52 their -PRON- PRP$ 40404 2497 53 original original JJ 40404 2497 54 horizontal horizontal JJ 40404 2497 55 attitude attitude NN 40404 2497 56 . . . 40404 2498 1 These these DT 40404 2498 2 movements movement NNS 40404 2498 3 are be VBP 40404 2498 4 most most RBS 40404 2498 5 conspicuous conspicuous JJ 40404 2498 6 along along IN 40404 2498 7 coasts coast NNS 40404 2498 8 , , , 40404 2498 9 where where WRB 40404 2498 10 they -PRON- PRP 40404 2498 11 can can MD 40404 2498 12 be be VB 40404 2498 13 referred refer VBN 40404 2498 14 to to IN 40404 2498 15 the the DT 40404 2498 16 datum datum NN 40404 2498 17 plane plane NN 40404 2498 18 of of IN 40404 2498 19 sea sea NN 40404 2498 20 level level NN 40404 2498 21 ; ; : 40404 2498 22 we -PRON- PRP 40404 2498 23 will will MD 40404 2498 24 therefore therefore RB 40404 2498 25 take take VB 40404 2498 26 our -PRON- PRP$ 40404 2498 27 first first JJ 40404 2498 28 illustrations illustration NNS 40404 2498 29 from from IN 40404 2498 30 rising rise VBG 40404 2498 31 and and CC 40404 2498 32 sinking sink VBG 40404 2498 33 shores shore NNS 40404 2498 34 . . . 40404 2499 1 = = NFP 40404 2499 2 New New NNP 40404 2499 3 Jersey.= jersey.= NN 40404 2499 4 Along along IN 40404 2499 5 the the DT 40404 2499 6 coasts coast NNS 40404 2499 7 of of IN 40404 2499 8 New New NNP 40404 2499 9 Jersey Jersey NNP 40404 2499 10 one one PRP 40404 2499 11 may may MD 40404 2499 12 find find VB 40404 2499 13 awash awash NN 40404 2499 14 at at IN 40404 2499 15 high high JJ 40404 2499 16 tide tide NN 40404 2499 17 ancient ancient JJ 40404 2499 18 shell shell NN 40404 2499 19 heaps heaps NNP 40404 2499 20 , , , 40404 2499 21 the the DT 40404 2499 22 remains remain NNS 40404 2499 23 of of IN 40404 2499 24 tribal tribal JJ 40404 2499 25 feasts feast NNS 40404 2499 26 of of IN 40404 2499 27 aborigines aborigine NNS 40404 2499 28 . . . 40404 2500 1 Meadows meadow NNS 40404 2500 2 and and CC 40404 2500 3 old old JJ 40404 2500 4 forest forest NN 40404 2500 5 grounds ground NNS 40404 2500 6 , , , 40404 2500 7 with with IN 40404 2500 8 the the DT 40404 2500 9 stumps stump NNS 40404 2500 10 still still RB 40404 2500 11 standing stand VBG 40404 2500 12 , , , 40404 2500 13 are be VBP 40404 2500 14 now now RB 40404 2500 15 overflowed overflow VBN 40404 2500 16 by by IN 40404 2500 17 the the DT 40404 2500 18 sea sea NN 40404 2500 19 , , , 40404 2500 20 and and CC 40404 2500 21 fragments fragment NNS 40404 2500 22 of of IN 40404 2500 23 their -PRON- PRP$ 40404 2500 24 turf turf NN 40404 2500 25 and and CC 40404 2500 26 wood wood NN 40404 2500 27 are be VBP 40404 2500 28 brought bring VBN 40404 2500 29 to to IN 40404 2500 30 shore shore NN 40404 2500 31 by by IN 40404 2500 32 waves wave NNS 40404 2500 33 . . . 40404 2501 1 Assuming assume VBG 40404 2501 2 that that IN 40404 2501 3 the the DT 40404 2501 4 sea sea NN 40404 2501 5 level level NN 40404 2501 6 remains remain VBZ 40404 2501 7 constant constant JJ 40404 2501 8 , , , 40404 2501 9 it -PRON- PRP 40404 2501 10 is be VBZ 40404 2501 11 clear clear JJ 40404 2501 12 that that IN 40404 2501 13 the the DT 40404 2501 14 New New NNP 40404 2501 15 Jersey Jersey NNP 40404 2501 16 coast coast NN 40404 2501 17 is be VBZ 40404 2501 18 now now RB 40404 2501 19 gradually gradually RB 40404 2501 20 sinking sink VBG 40404 2501 21 . . . 40404 2502 1 The the DT 40404 2502 2 rate rate NN 40404 2502 3 of of IN 40404 2502 4 submergence submergence NN 40404 2502 5 has have VBZ 40404 2502 6 been be VBN 40404 2502 7 estimated estimate VBN 40404 2502 8 at at IN 40404 2502 9 about about RB 40404 2502 10 two two CD 40404 2502 11 feet foot NNS 40404 2502 12 per per IN 40404 2502 13 century century NN 40404 2502 14 . . . 40404 2503 1 On on IN 40404 2503 2 the the DT 40404 2503 3 other other JJ 40404 2503 4 hand hand NN 40404 2503 5 , , , 40404 2503 6 the the DT 40404 2503 7 wide wide JJ 40404 2503 8 coastal coastal JJ 40404 2503 9 plain plain NN 40404 2503 10 of of IN 40404 2503 11 New New NNP 40404 2503 12 Jersey Jersey NNP 40404 2503 13 is be VBZ 40404 2503 14 made make VBN 40404 2503 15 of of IN 40404 2503 16 stratified stratified JJ 40404 2503 17 sands sand NNS 40404 2503 18 and and CC 40404 2503 19 clays clay NNS 40404 2503 20 , , , 40404 2503 21 which which WDT 40404 2503 22 , , , 40404 2503 23 as as IN 40404 2503 24 their -PRON- PRP$ 40404 2503 25 marine marine JJ 40404 2503 26 fossils fossil NNS 40404 2503 27 show show NN 40404 2503 28 , , , 40404 2503 29 were be VBD 40404 2503 30 outspread outspread JJ 40404 2503 31 beneath beneath IN 40404 2503 32 the the DT 40404 2503 33 sea sea NN 40404 2503 34 . . . 40404 2504 1 Their -PRON- PRP$ 40404 2504 2 present present JJ 40404 2504 3 position position NN 40404 2504 4 above above IN 40404 2504 5 sea sea NN 40404 2504 6 level level NN 40404 2504 7 proves prove VBZ 40404 2504 8 that that IN 40404 2504 9 the the DT 40404 2504 10 land land NN 40404 2504 11 now now RB 40404 2504 12 subsiding subside VBG 40404 2504 13 emerged emerge VBD 40404 2504 14 in in IN 40404 2504 15 the the DT 40404 2504 16 recent recent JJ 40404 2504 17 past past NN 40404 2504 18 . . . 40404 2505 1 The the DT 40404 2505 2 coast coast NN 40404 2505 3 of of IN 40404 2505 4 New New NNP 40404 2505 5 Jersey Jersey NNP 40404 2505 6 is be VBZ 40404 2505 7 an an DT 40404 2505 8 example example NN 40404 2505 9 of of IN 40404 2505 10 the the DT 40404 2505 11 slow slow JJ 40404 2505 12 and and CC 40404 2505 13 tranquil tranquil JJ 40404 2505 14 oscillations oscillation NNS 40404 2505 15 of of IN 40404 2505 16 the the DT 40404 2505 17 earth earth NN 40404 2505 18 's 's POS 40404 2505 19 unstable unstable JJ 40404 2505 20 crust crust NN 40404 2505 21 now now RB 40404 2505 22 in in IN 40404 2505 23 progress progress NN 40404 2505 24 along along IN 40404 2505 25 many many JJ 40404 2505 26 shores shore NNS 40404 2505 27 . . . 40404 2506 1 Some some DT 40404 2506 2 are be VBP 40404 2506 3 emerging emerge VBG 40404 2506 4 from from IN 40404 2506 5 the the DT 40404 2506 6 sea sea NN 40404 2506 7 , , , 40404 2506 8 some some DT 40404 2506 9 are be VBP 40404 2506 10 sinking sink VBG 40404 2506 11 beneath beneath IN 40404 2506 12 it -PRON- PRP 40404 2506 13 ; ; : 40404 2506 14 and and CC 40404 2506 15 no no DT 40404 2506 16 part part NN 40404 2506 17 of of IN 40404 2506 18 the the DT 40404 2506 19 land land NN 40404 2506 20 seems seem VBZ 40404 2506 21 to to TO 40404 2506 22 have have VB 40404 2506 23 been be VBN 40404 2506 24 exempt exempt JJ 40404 2506 25 from from IN 40404 2506 26 these these DT 40404 2506 27 changes change NNS 40404 2506 28 in in IN 40404 2506 29 the the DT 40404 2506 30 past past NN 40404 2506 31 . . . 40404 2507 1 = = NFP 40404 2507 2 Evidences evidence NNS 40404 2507 3 of of IN 40404 2507 4 changes change NNS 40404 2507 5 of of IN 40404 2507 6 level.= level.= NNP 40404 2507 7 Taking take VBG 40404 2507 8 the the DT 40404 2507 9 surface surface NN 40404 2507 10 of of IN 40404 2507 11 the the DT 40404 2507 12 sea sea NN 40404 2507 13 as as IN 40404 2507 14 a a DT 40404 2507 15 level level NN 40404 2507 16 of of IN 40404 2507 17 reference reference NN 40404 2507 18 , , , 40404 2507 19 we -PRON- PRP 40404 2507 20 may may MD 40404 2507 21 accept accept VB 40404 2507 22 as as IN 40404 2507 23 proofs proof NNS 40404 2507 24 of of IN 40404 2507 25 relative relative JJ 40404 2507 26 upheaval upheaval NN 40404 2507 27 whatever whatever WDT 40404 2507 28 is be VBZ 40404 2507 29 now now RB 40404 2507 30 found find VBN 40404 2507 31 in in IN 40404 2507 32 place place NN 40404 2507 33 above above IN 40404 2507 34 sea sea NN 40404 2507 35 level level NN 40404 2507 36 and and CC 40404 2507 37 could could MD 40404 2507 38 have have VB 40404 2507 39 been be VBN 40404 2507 40 formed form VBN 40404 2507 41 only only RB 40404 2507 42 at at IN 40404 2507 43 or or CC 40404 2507 44 beneath beneath IN 40404 2507 45 it -PRON- PRP 40404 2507 46 , , , 40404 2507 47 and and CC 40404 2507 48 as as IN 40404 2507 49 proofs proof NNS 40404 2507 50 of of IN 40404 2507 51 relative relative JJ 40404 2507 52 subsidence subsidence NN 40404 2507 53 whatever whatever WDT 40404 2507 54 is be VBZ 40404 2507 55 now now RB 40404 2507 56 found find VBN 40404 2507 57 beneath beneath IN 40404 2507 58 the the DT 40404 2507 59 sea sea NN 40404 2507 60 and and CC 40404 2507 61 could could MD 40404 2507 62 only only RB 40404 2507 63 have have VB 40404 2507 64 been be VBN 40404 2507 65 formed form VBN 40404 2507 66 above above IN 40404 2507 67 it -PRON- PRP 40404 2507 68 . . . 40404 2508 1 Thus thus RB 40404 2508 2 old old JJ 40404 2508 3 strand strand NN 40404 2508 4 lines line NNS 40404 2508 5 with with IN 40404 2508 6 sea sea NN 40404 2508 7 cliffs cliff NNS 40404 2508 8 , , , 40404 2508 9 wave wave NN 40404 2508 10 - - HYPH 40404 2508 11 cut cut NN 40404 2508 12 rock rock NN 40404 2508 13 benches bench NNS 40404 2508 14 , , , 40404 2508 15 and and CC 40404 2508 16 beaches beach NNS 40404 2508 17 of of IN 40404 2508 18 wave wave NN 40404 2508 19 - - HYPH 40404 2508 20 worn wear VBN 40404 2508 21 pebbles pebble NNS 40404 2508 22 or or CC 40404 2508 23 sand sand NN 40404 2508 24 , , , 40404 2508 25 are be VBP 40404 2508 26 striking strike VBG 40404 2508 27 proofs proof NNS 40404 2508 28 of of IN 40404 2508 29 recent recent JJ 40404 2508 30 emergence emergence NN 40404 2508 31 to to IN 40404 2508 32 the the DT 40404 2508 33 amount amount NN 40404 2508 34 of of IN 40404 2508 35 their -PRON- PRP$ 40404 2508 36 present present JJ 40404 2508 37 height height NN 40404 2508 38 above above IN 40404 2508 39 tide tide NN 40404 2508 40 . . . 40404 2509 1 No no DT 40404 2509 2 less less RBR 40404 2509 3 conclusive conclusive JJ 40404 2509 4 is be VBZ 40404 2509 5 the the DT 40404 2509 6 presence presence NN 40404 2509 7 of of IN 40404 2509 8 sea sea NN 40404 2509 9 - - HYPH 40404 2509 10 laid lay VBN 40404 2509 11 rocks rock NNS 40404 2509 12 which which WDT 40404 2509 13 we -PRON- PRP 40404 2509 14 may may MD 40404 2509 15 find find VB 40404 2509 16 in in IN 40404 2509 17 the the DT 40404 2509 18 neighboring neighbor VBG 40404 2509 19 quarry quarry NN 40404 2509 20 or or CC 40404 2509 21 outcrop outcrop NNP 40404 2509 22 , , , 40404 2509 23 although although IN 40404 2509 24 it -PRON- PRP 40404 2509 25 may may MD 40404 2509 26 have have VB 40404 2509 27 been be VBN 40404 2509 28 long long JJ 40404 2509 29 ages age NNS 40404 2509 30 since since IN 40404 2509 31 they -PRON- PRP 40404 2509 32 were be VBD 40404 2509 33 lifted lift VBN 40404 2509 34 from from IN 40404 2509 35 the the DT 40404 2509 36 sea sea NN 40404 2509 37 to to TO 40404 2509 38 form form VB 40404 2509 39 part part NN 40404 2509 40 of of IN 40404 2509 41 the the DT 40404 2509 42 dry dry JJ 40404 2509 43 land land NN 40404 2509 44 . . . 40404 2510 1 Among among IN 40404 2510 2 common common JJ 40404 2510 3 proofs proof NNS 40404 2510 4 of of IN 40404 2510 5 subsidence subsidence NN 40404 2510 6 are be VBP 40404 2510 7 roads road NNS 40404 2510 8 and and CC 40404 2510 9 buildings building NNS 40404 2510 10 and and CC 40404 2510 11 other other JJ 40404 2510 12 works work NNS 40404 2510 13 of of IN 40404 2510 14 man man NN 40404 2510 15 , , , 40404 2510 16 and and CC 40404 2510 17 vegetal vegetal JJ 40404 2510 18 growths growth NNS 40404 2510 19 and and CC 40404 2510 20 deposits deposit NNS 40404 2510 21 , , , 40404 2510 22 such such JJ 40404 2510 23 as as IN 40404 2510 24 forest forest NN 40404 2510 25 grounds ground NNS 40404 2510 26 and and CC 40404 2510 27 peat peat NN 40404 2510 28 beds bed NNS 40404 2510 29 , , , 40404 2510 30 now now RB 40404 2510 31 submerged submerge VBN 40404 2510 32 beneath beneath IN 40404 2510 33 the the DT 40404 2510 34 sea sea NN 40404 2510 35 . . . 40404 2511 1 In in IN 40404 2511 2 the the DT 40404 2511 3 deltas delta NNS 40404 2511 4 of of IN 40404 2511 5 many many JJ 40404 2511 6 large large JJ 40404 2511 7 rivers river NNS 40404 2511 8 , , , 40404 2511 9 such such JJ 40404 2511 10 as as IN 40404 2511 11 the the DT 40404 2511 12 Po Po NNP 40404 2511 13 , , , 40404 2511 14 the the DT 40404 2511 15 Nile Nile NNP 40404 2511 16 , , , 40404 2511 17 the the DT 40404 2511 18 Ganges Ganges NNPS 40404 2511 19 , , , 40404 2511 20 and and CC 40404 2511 21 the the DT 40404 2511 22 Mississippi Mississippi NNP 40404 2511 23 , , , 40404 2511 24 buried bury VBN 40404 2511 25 soils soil NNS 40404 2511 26 prove prove VBP 40404 2511 27 subsidences subsidence NNS 40404 2511 28 of of IN 40404 2511 29 hundreds hundred NNS 40404 2511 30 of of IN 40404 2511 31 feet foot NNS 40404 2511 32 ; ; : 40404 2511 33 and and CC 40404 2511 34 in in IN 40404 2511 35 several several JJ 40404 2511 36 cases case NNS 40404 2511 37 , , , 40404 2511 38 as as IN 40404 2511 39 in in IN 40404 2511 40 the the DT 40404 2511 41 Mississippi Mississippi NNP 40404 2511 42 delta delta NN 40404 2511 43 , , , 40404 2511 44 the the DT 40404 2511 45 depression depression NN 40404 2511 46 seems seem VBZ 40404 2511 47 to to TO 40404 2511 48 be be VB 40404 2511 49 now now RB 40404 2511 50 in in IN 40404 2511 51 progress progress NN 40404 2511 52 . . . 40404 2512 1 Other other JJ 40404 2512 2 proofs proof NNS 40404 2512 3 of of IN 40404 2512 4 the the DT 40404 2512 5 same same JJ 40404 2512 6 movement movement NN 40404 2512 7 are be VBP 40404 2512 8 drowned drown VBN 40404 2512 9 land land NN 40404 2512 10 forms form NNS 40404 2512 11 which which WDT 40404 2512 12 are be VBP 40404 2512 13 modeled model VBN 40404 2512 14 only only RB 40404 2512 15 in in IN 40404 2512 16 open open JJ 40404 2512 17 air air NN 40404 2512 18 . . . 40404 2513 1 Since since IN 40404 2513 2 rivers river NNS 40404 2513 3 can can MD 40404 2513 4 not not RB 40404 2513 5 cut cut VB 40404 2513 6 their -PRON- PRP$ 40404 2513 7 valleys valley NNS 40404 2513 8 farther farther RB 40404 2513 9 below below IN 40404 2513 10 the the DT 40404 2513 11 baselevel baselevel NN 40404 2513 12 of of IN 40404 2513 13 the the DT 40404 2513 14 sea sea NN 40404 2513 15 than than IN 40404 2513 16 the the DT 40404 2513 17 depths depth NNS 40404 2513 18 of of IN 40404 2513 19 their -PRON- PRP$ 40404 2513 20 channels channel NNS 40404 2513 21 , , , 40404 2513 22 _ _ NNP 40404 2513 23 drowned drown VBD 40404 2513 24 valleys valley NNS 40404 2513 25 _ _ NNP 40404 2513 26 are be VBP 40404 2513 27 among among IN 40404 2513 28 the the DT 40404 2513 29 plainest plain JJS 40404 2513 30 proofs proof NNS 40404 2513 31 of of IN 40404 2513 32 depression depression NN 40404 2513 33 . . . 40404 2514 1 To to IN 40404 2514 2 this this DT 40404 2514 3 class class NN 40404 2514 4 belong belong VB 40404 2514 5 Narragansett Narragansett NNP 40404 2514 6 , , , 40404 2514 7 Delaware Delaware NNP 40404 2514 8 , , , 40404 2514 9 Chesapeake Chesapeake NNP 40404 2514 10 , , , 40404 2514 11 Mobile Mobile NNP 40404 2514 12 , , , 40404 2514 13 and and CC 40404 2514 14 San San NNP 40404 2514 15 Francisco Francisco NNP 40404 2514 16 bays bay NNS 40404 2514 17 , , , 40404 2514 18 and and CC 40404 2514 19 many many JJ 40404 2514 20 other other JJ 40404 2514 21 similar similar JJ 40404 2514 22 drowned drown VBN 40404 2514 23 valleys valley NNS 40404 2514 24 along along IN 40404 2514 25 the the DT 40404 2514 26 coasts coast NNS 40404 2514 27 of of IN 40404 2514 28 the the DT 40404 2514 29 United United NNP 40404 2514 30 States States NNP 40404 2514 31 . . . 40404 2515 1 Less less RBR 40404 2515 2 conspicuous conspicuous JJ 40404 2515 3 are be VBP 40404 2515 4 the the DT 40404 2515 5 _ _ NNP 40404 2515 6 submarine submarine NN 40404 2515 7 channels channel NNS 40404 2515 8 _ _ NNP 40404 2515 9 which which WDT 40404 2515 10 , , , 40404 2515 11 as as IN 40404 2515 12 soundings sounding NNS 40404 2515 13 show show VBP 40404 2515 14 , , , 40404 2515 15 extend extend VBP 40404 2515 16 from from IN 40404 2515 17 the the DT 40404 2515 18 mouths mouth NNS 40404 2515 19 of of IN 40404 2515 20 a a DT 40404 2515 21 number number NN 40404 2515 22 of of IN 40404 2515 23 rivers river NNS 40404 2515 24 some some DT 40404 2515 25 distance distance NN 40404 2515 26 out out RP 40404 2515 27 to to IN 40404 2515 28 sea sea NN 40404 2515 29 . . . 40404 2516 1 Such such JJ 40404 2516 2 is be VBZ 40404 2516 3 the the DT 40404 2516 4 submerged submerged JJ 40404 2516 5 channel channel NN 40404 2516 6 which which WDT 40404 2516 7 reaches reach VBZ 40404 2516 8 from from IN 40404 2516 9 New New NNP 40404 2516 10 York York NNP 40404 2516 11 Bay Bay NNP 40404 2516 12 southeast southeast NN 40404 2516 13 to to IN 40404 2516 14 the the DT 40404 2516 15 edge edge NN 40404 2516 16 of of IN 40404 2516 17 the the DT 40404 2516 18 continental continental JJ 40404 2516 19 shelf shelf NNP 40404 2516 20 , , , 40404 2516 21 and and CC 40404 2516 22 which which WDT 40404 2516 23 is be VBZ 40404 2516 24 supposed suppose VBN 40404 2516 25 to to TO 40404 2516 26 have have VB 40404 2516 27 been be VBN 40404 2516 28 cut cut VBN 40404 2516 29 by by IN 40404 2516 30 the the DT 40404 2516 31 Hudson Hudson NNP 40404 2516 32 River River NNP 40404 2516 33 when when WRB 40404 2516 34 this this DT 40404 2516 35 part part NN 40404 2516 36 of of IN 40404 2516 37 the the DT 40404 2516 38 shelf shelf NN 40404 2516 39 was be VBD 40404 2516 40 a a DT 40404 2516 41 coastal coastal JJ 40404 2516 42 plain plain NN 40404 2516 43 . . . 40404 2517 1 = = NFP 40404 2517 2 Warping.= Warping.= JJR 40404 2517 3 In in IN 40404 2517 4 a a DT 40404 2517 5 region region NN 40404 2517 6 undergoing undergo VBG 40404 2517 7 changes change NNS 40404 2517 8 of of IN 40404 2517 9 level level NN 40404 2517 10 the the DT 40404 2517 11 rate rate NN 40404 2517 12 of of IN 40404 2517 13 movement movement NN 40404 2517 14 commonly commonly RB 40404 2517 15 varies vary VBZ 40404 2517 16 in in IN 40404 2517 17 different different JJ 40404 2517 18 parts part NNS 40404 2517 19 . . . 40404 2518 1 Portions portion NNS 40404 2518 2 of of IN 40404 2518 3 an an DT 40404 2518 4 area area NN 40404 2518 5 may may MD 40404 2518 6 be be VB 40404 2518 7 rising rise VBG 40404 2518 8 or or CC 40404 2518 9 sinking sink VBG 40404 2518 10 , , , 40404 2518 11 while while IN 40404 2518 12 adjacent adjacent JJ 40404 2518 13 portions portion NNS 40404 2518 14 are be VBP 40404 2518 15 stationary stationary JJ 40404 2518 16 or or CC 40404 2518 17 moving move VBG 40404 2518 18 in in IN 40404 2518 19 the the DT 40404 2518 20 opposite opposite JJ 40404 2518 21 direction direction NN 40404 2518 22 . . . 40404 2519 1 In in IN 40404 2519 2 this this DT 40404 2519 3 way way NN 40404 2519 4 a a DT 40404 2519 5 land land NN 40404 2519 6 surface surface NN 40404 2519 7 becomes become VBZ 40404 2519 8 _ _ NNP 40404 2519 9 warped warped JJ 40404 2519 10 _ _ NNP 40404 2519 11 . . . 40404 2520 1 Thus thus RB 40404 2520 2 , , , 40404 2520 3 while while IN 40404 2520 4 Nova Nova NNP 40404 2520 5 Scotia Scotia NNP 40404 2520 6 and and CC 40404 2520 7 New New NNP 40404 2520 8 Brunswick Brunswick NNP 40404 2520 9 are be VBP 40404 2520 10 now now RB 40404 2520 11 rising rise VBG 40404 2520 12 from from IN 40404 2520 13 the the DT 40404 2520 14 level level NN 40404 2520 15 of of IN 40404 2520 16 the the DT 40404 2520 17 sea sea NN 40404 2520 18 , , , 40404 2520 19 Prince Prince NNP 40404 2520 20 Edward Edward NNP 40404 2520 21 Island Island NNP 40404 2520 22 and and CC 40404 2520 23 Cape Cape NNP 40404 2520 24 Breton Breton NNP 40404 2520 25 Island Island NNP 40404 2520 26 are be VBP 40404 2520 27 sinking sink VBG 40404 2520 28 , , , 40404 2520 29 and and CC 40404 2520 30 the the DT 40404 2520 31 sea sea NN 40404 2520 32 now now RB 40404 2520 33 flows flow VBZ 40404 2520 34 over over IN 40404 2520 35 the the DT 40404 2520 36 site site NN 40404 2520 37 of of IN 40404 2520 38 the the DT 40404 2520 39 famous famous JJ 40404 2520 40 old old JJ 40404 2520 41 town town NN 40404 2520 42 of of IN 40404 2520 43 Louisburg Louisburg NNP 40404 2520 44 destroyed destroy VBN 40404 2520 45 in in IN 40404 2520 46 1758 1758 CD 40404 2520 47 . . . 40404 2521 1 Since since IN 40404 2521 2 the the DT 40404 2521 3 close close NN 40404 2521 4 of of IN 40404 2521 5 the the DT 40404 2521 6 glacial glacial JJ 40404 2521 7 epoch epoch NN 40404 2521 8 the the DT 40404 2521 9 coasts coast NNS 40404 2521 10 of of IN 40404 2521 11 Newfoundland Newfoundland NNP 40404 2521 12 and and CC 40404 2521 13 Labrador Labrador NNP 40404 2521 14 have have VBP 40404 2521 15 risen rise VBN 40404 2521 16 hundreds hundred NNS 40404 2521 17 of of IN 40404 2521 18 feet foot NNS 40404 2521 19 , , , 40404 2521 20 but but CC 40404 2521 21 the the DT 40404 2521 22 rate rate NN 40404 2521 23 of of IN 40404 2521 24 emergence emergence NN 40404 2521 25 has have VBZ 40404 2521 26 not not RB 40404 2521 27 been be VBN 40404 2521 28 uniform uniform JJ 40404 2521 29 . . . 40404 2522 1 The the DT 40404 2522 2 old old JJ 40404 2522 3 strand strand NN 40404 2522 4 line line NN 40404 2522 5 , , , 40404 2522 6 which which WDT 40404 2522 7 stands stand VBZ 40404 2522 8 at at IN 40404 2522 9 five five CD 40404 2522 10 hundred hundred CD 40404 2522 11 and and CC 40404 2522 12 seventy seventy CD 40404 2522 13 - - HYPH 40404 2522 14 five five CD 40404 2522 15 feet foot NNS 40404 2522 16 above above IN 40404 2522 17 tide tide NN 40404 2522 18 at at IN 40404 2522 19 St. St. NNP 40404 2522 20 John John NNP 40404 2522 21 's 's POS 40404 2522 22 , , , 40404 2522 23 Newfoundland Newfoundland NNP 40404 2522 24 , , , 40404 2522 25 declines decline VBZ 40404 2522 26 to to IN 40404 2522 27 two two CD 40404 2522 28 hundred hundred CD 40404 2522 29 and and CC 40404 2522 30 fifty fifty CD 40404 2522 31 feet foot NNS 40404 2522 32 near near IN 40404 2522 33 the the DT 40404 2522 34 northern northern JJ 40404 2522 35 point point NN 40404 2522 36 of of IN 40404 2522 37 Labrador Labrador NNP 40404 2522 38 ( ( -LRB- 40404 2522 39 Fig fig NN 40404 2522 40 . . . 40404 2523 1 164 164 CD 40404 2523 2 ) ) -RRB- 40404 2523 3 . . . 40404 2524 1 [ [ -LRB- 40404 2524 2 Illustration illustration NN 40404 2524 3 : : : 40404 2524 4 Fig Fig NNP 40404 2524 5 . . . 40404 2525 1 164 164 CD 40404 2525 2 . . . 40404 2526 1 Warped Warped NNP 40404 2526 2 Strand Strand NNP 40404 2526 3 Line Line NNP 40404 2526 4 from from IN 40404 2526 5 St. St. NNP 40404 2526 6 John John NNP 40404 2526 7 's 's POS 40404 2526 8 , , , 40404 2526 9 Newfoundland Newfoundland NNP 40404 2526 10 , , , 40404 2526 11 to to IN 40404 2526 12 Nachvak Nachvak NNP 40404 2526 13 , , , 40404 2526 14 Labrador Labrador NNP 40404 2526 15 ] ] -RRB- 40404 2526 16 = = NFP 40404 2526 17 The the DT 40404 2526 18 Great great JJ 40404 2526 19 Lakes= Lakes= NFP 40404 2526 20 is be VBZ 40404 2526 21 now now RB 40404 2526 22 undergoing undergo VBG 40404 2526 23 perceptible perceptible JJ 40404 2526 24 warping warping NN 40404 2526 25 . . . 40404 2527 1 Rivers river NNS 40404 2527 2 enter enter VBP 40404 2527 3 the the DT 40404 2527 4 lakes lake NNS 40404 2527 5 from from IN 40404 2527 6 the the DT 40404 2527 7 south south NNP 40404 2527 8 and and CC 40404 2527 9 west west NN 40404 2527 10 with with IN 40404 2527 11 sluggish sluggish JJ 40404 2527 12 currents current NNS 40404 2527 13 and and CC 40404 2527 14 deep deep JJ 40404 2527 15 channels channel NNS 40404 2527 16 resembling resemble VBG 40404 2527 17 the the DT 40404 2527 18 estuaries estuary NNS 40404 2527 19 of of IN 40404 2527 20 drowned drown VBN 40404 2527 21 rivers river NNS 40404 2527 22 ; ; : 40404 2527 23 while while IN 40404 2527 24 those those DT 40404 2527 25 that that WDT 40404 2527 26 enter enter VBP 40404 2527 27 from from IN 40404 2527 28 opposite opposite JJ 40404 2527 29 directions direction NNS 40404 2527 30 are be VBP 40404 2527 31 swift swift JJ 40404 2527 32 and and CC 40404 2527 33 shallow shallow JJ 40404 2527 34 . . . 40404 2528 1 At at IN 40404 2528 2 the the DT 40404 2528 3 western western JJ 40404 2528 4 end end NN 40404 2528 5 of of IN 40404 2528 6 Lake Lake NNP 40404 2528 7 Erie Erie NNP 40404 2528 8 are be VBP 40404 2528 9 found find VBN 40404 2528 10 submerged submerged JJ 40404 2528 11 caves cave NNS 40404 2528 12 containing contain VBG 40404 2528 13 stalactites stalactite NNS 40404 2528 14 , , , 40404 2528 15 and and CC 40404 2528 16 old old JJ 40404 2528 17 meadows meadow NNS 40404 2528 18 and and CC 40404 2528 19 forest forest NN 40404 2528 20 grounds ground NNS 40404 2528 21 are be VBP 40404 2528 22 now now RB 40404 2528 23 under under IN 40404 2528 24 water water NN 40404 2528 25 . . . 40404 2529 1 It -PRON- PRP 40404 2529 2 is be VBZ 40404 2529 3 thus thus RB 40404 2529 4 seen see VBN 40404 2529 5 that that IN 40404 2529 6 the the DT 40404 2529 7 water water NN 40404 2529 8 of of IN 40404 2529 9 the the DT 40404 2529 10 lakes lake NNS 40404 2529 11 is be VBZ 40404 2529 12 rising rise VBG 40404 2529 13 along along IN 40404 2529 14 their -PRON- PRP$ 40404 2529 15 southwestern southwestern JJ 40404 2529 16 shores shore NNS 40404 2529 17 , , , 40404 2529 18 while while IN 40404 2529 19 from from IN 40404 2529 20 their -PRON- PRP$ 40404 2529 21 northeastern northeastern JJ 40404 2529 22 shores shore NNS 40404 2529 23 it -PRON- PRP 40404 2529 24 is be VBZ 40404 2529 25 being be VBG 40404 2529 26 withdrawn withdraw VBN 40404 2529 27 . . . 40404 2530 1 The the DT 40404 2530 2 region region NN 40404 2530 3 of of IN 40404 2530 4 the the DT 40404 2530 5 Great Great NNP 40404 2530 6 Lakes Lakes NNPS 40404 2530 7 is be VBZ 40404 2530 8 therefore therefore RB 40404 2530 9 warping warp VBG 40404 2530 10 ; ; : 40404 2530 11 it -PRON- PRP 40404 2530 12 is be VBZ 40404 2530 13 rising rise VBG 40404 2530 14 in in IN 40404 2530 15 the the DT 40404 2530 16 northeast northeast NN 40404 2530 17 as as IN 40404 2530 18 compared compare VBN 40404 2530 19 with with IN 40404 2530 20 the the DT 40404 2530 21 southwest southwest NN 40404 2530 22 . . . 40404 2531 1 From from IN 40404 2531 2 old old JJ 40404 2531 3 bench bench NN 40404 2531 4 marks mark NNS 40404 2531 5 and and CC 40404 2531 6 records record NNS 40404 2531 7 of of IN 40404 2531 8 lake lake NN 40404 2531 9 levels level NNS 40404 2531 10 it -PRON- PRP 40404 2531 11 has have VBZ 40404 2531 12 been be VBN 40404 2531 13 estimated estimate VBN 40404 2531 14 that that IN 40404 2531 15 _ _ NNP 40404 2531 16 the the DT 40404 2531 17 rate rate NN 40404 2531 18 of of IN 40404 2531 19 warping warp VBG 40404 2531 20 _ _ NNP 40404 2531 21 amounts amount VBZ 40404 2531 22 to to IN 40404 2531 23 five five CD 40404 2531 24 inches inch NNS 40404 2531 25 a a DT 40404 2531 26 century century NN 40404 2531 27 for for IN 40404 2531 28 every every DT 40404 2531 29 one one CD 40404 2531 30 hundred hundred CD 40404 2531 31 miles mile NNS 40404 2531 32 . . . 40404 2532 1 It -PRON- PRP 40404 2532 2 is be VBZ 40404 2532 3 calculated calculate VBN 40404 2532 4 that that IN 40404 2532 5 the the DT 40404 2532 6 water water NN 40404 2532 7 of of IN 40404 2532 8 Lake Lake NNP 40404 2532 9 Michigan Michigan NNP 40404 2532 10 is be VBZ 40404 2532 11 rising rise VBG 40404 2532 12 at at IN 40404 2532 13 Chicago Chicago NNP 40404 2532 14 at at IN 40404 2532 15 the the DT 40404 2532 16 rate rate NN 40404 2532 17 of of IN 40404 2532 18 nine nine CD 40404 2532 19 or or CC 40404 2532 20 ten ten CD 40404 2532 21 inches inch NNS 40404 2532 22 per per IN 40404 2532 23 century century NN 40404 2532 24 . . . 40404 2533 1 The the DT 40404 2533 2 divide divide NN 40404 2533 3 at at IN 40404 2533 4 this this DT 40404 2533 5 point point NN 40404 2533 6 between between IN 40404 2533 7 the the DT 40404 2533 8 tributaries tributary NNS 40404 2533 9 of of IN 40404 2533 10 the the DT 40404 2533 11 Mississippi Mississippi NNP 40404 2533 12 and and CC 40404 2533 13 Lake Lake NNP 40404 2533 14 Michigan Michigan NNP 40404 2533 15 is be VBZ 40404 2533 16 but but CC 40404 2533 17 eight eight CD 40404 2533 18 feet foot NNS 40404 2533 19 above above IN 40404 2533 20 the the DT 40404 2533 21 mean mean JJ 40404 2533 22 stage stage NN 40404 2533 23 of of IN 40404 2533 24 the the DT 40404 2533 25 lake lake NN 40404 2533 26 . . . 40404 2534 1 If if IN 40404 2534 2 the the DT 40404 2534 3 canting canting NN 40404 2534 4 of of IN 40404 2534 5 the the DT 40404 2534 6 region region NN 40404 2534 7 continues continue VBZ 40404 2534 8 at at IN 40404 2534 9 its -PRON- PRP$ 40404 2534 10 present present JJ 40404 2534 11 rate rate NN 40404 2534 12 , , , 40404 2534 13 in in IN 40404 2534 14 a a DT 40404 2534 15 thousand thousand CD 40404 2534 16 years year NNS 40404 2534 17 the the DT 40404 2534 18 waters water NNS 40404 2534 19 of of IN 40404 2534 20 the the DT 40404 2534 21 lake lake NN 40404 2534 22 will will MD 40404 2534 23 here here RB 40404 2534 24 overflow overflow VB 40404 2534 25 the the DT 40404 2534 26 divide divide NN 40404 2534 27 . . . 40404 2535 1 In in IN 40404 2535 2 three three CD 40404 2535 3 thousand thousand CD 40404 2535 4 five five CD 40404 2535 5 hundred hundred CD 40404 2535 6 years year NNS 40404 2535 7 all all PDT 40404 2535 8 the the DT 40404 2535 9 lakes lake NNS 40404 2535 10 except except IN 40404 2535 11 Ontario Ontario NNP 40404 2535 12 will will MD 40404 2535 13 discharge discharge VB 40404 2535 14 by by IN 40404 2535 15 this this DT 40404 2535 16 outlet outlet NN 40404 2535 17 , , , 40404 2535 18 via via IN 40404 2535 19 the the DT 40404 2535 20 Illinois Illinois NNP 40404 2535 21 and and CC 40404 2535 22 Mississippi Mississippi NNP 40404 2535 23 rivers river NNS 40404 2535 24 , , , 40404 2535 25 into into IN 40404 2535 26 the the DT 40404 2535 27 Gulf Gulf NNP 40404 2535 28 of of IN 40404 2535 29 Mexico Mexico NNP 40404 2535 30 . . . 40404 2536 1 The the DT 40404 2536 2 present present JJ 40404 2536 3 outlet outlet NN 40404 2536 4 by by IN 40404 2536 5 the the DT 40404 2536 6 Niagara Niagara NNP 40404 2536 7 River River NNP 40404 2536 8 will will MD 40404 2536 9 be be VB 40404 2536 10 left leave VBN 40404 2536 11 dry dry JJ 40404 2536 12 , , , 40404 2536 13 and and CC 40404 2536 14 the the DT 40404 2536 15 divide divide NN 40404 2536 16 between between IN 40404 2536 17 the the DT 40404 2536 18 St. St. NNP 40404 2536 19 Lawrence Lawrence NNP 40404 2536 20 and and CC 40404 2536 21 the the DT 40404 2536 22 Mississippi Mississippi NNP 40404 2536 23 systems system NNS 40404 2536 24 will will MD 40404 2536 25 have have VB 40404 2536 26 shifted shift VBN 40404 2536 27 from from IN 40404 2536 28 Chicago Chicago NNP 40404 2536 29 to to IN 40404 2536 30 the the DT 40404 2536 31 vicinity vicinity NN 40404 2536 32 of of IN 40404 2536 33 Buffalo Buffalo NNP 40404 2536 34 . . . 40404 2537 1 = = NFP 40404 2537 2 Physiographic physiographic JJ 40404 2537 3 effects effect NNS 40404 2537 4 of of IN 40404 2537 5 oscillations.= oscillations.= NNS 40404 2537 6 We -PRON- PRP 40404 2537 7 have have VBP 40404 2537 8 already already RB 40404 2537 9 mentioned mention VBN 40404 2537 10 several several JJ 40404 2537 11 of of IN 40404 2537 12 the the DT 40404 2537 13 most most RBS 40404 2537 14 important important JJ 40404 2537 15 effects effect NNS 40404 2537 16 of of IN 40404 2537 17 movements movement NNS 40404 2537 18 of of IN 40404 2537 19 elevation elevation NN 40404 2537 20 and and CC 40404 2537 21 depression depression NN 40404 2537 22 , , , 40404 2537 23 such such JJ 40404 2537 24 as as IN 40404 2537 25 their -PRON- PRP$ 40404 2537 26 effects effect NNS 40404 2537 27 on on IN 40404 2537 28 rivers river NNS 40404 2537 29 , , , 40404 2537 30 the the DT 40404 2537 31 mantle mantle NN 40404 2537 32 of of IN 40404 2537 33 waste waste NNP 40404 2537 34 ( ( -LRB- 40404 2537 35 pp pp NNP 40404 2537 36 . . . 40404 2538 1 85 85 CD 40404 2538 2 , , , 40404 2538 3 86 86 CD 40404 2538 4 ) ) -RRB- 40404 2538 5 , , , 40404 2538 6 and and CC 40404 2538 7 the the DT 40404 2538 8 forms form NNS 40404 2538 9 of of IN 40404 2538 10 coasts coast NNS 40404 2538 11 ( ( -LRB- 40404 2538 12 p. p. 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NN 40404 2542 29 101 101 CD 40404 2542 30 ) ) -RRB- 40404 2542 31 , , , 40404 2542 32 the the DT 40404 2542 33 Mississippi Mississippi NNP 40404 2542 34 delta delta NN 40404 2542 35 ( ( -LRB- 40404 2542 36 p. p. NN 40404 2542 37 109 109 CD 40404 2542 38 ) ) -RRB- 40404 2542 39 , , , 40404 2542 40 and and CC 40404 2542 41 the the DT 40404 2542 42 still still RB 40404 2542 43 more more RBR 40404 2542 44 important important JJ 40404 2542 45 formations formation NNS 40404 2542 46 of of IN 40404 2542 47 the the DT 40404 2542 48 continental continental JJ 40404 2542 49 delta delta NN 40404 2542 50 in in IN 40404 2542 51 gradually gradually RB 40404 2542 52 sinking sink VBG 40404 2542 53 troughs trough NNS 40404 2542 54 ( ( -LRB- 40404 2542 55 p. p. NN 40404 2542 56 183 183 CD 40404 2542 57 ) ) -RRB- 40404 2542 58 . . . 40404 2543 1 It -PRON- PRP 40404 2543 2 is be VBZ 40404 2543 3 not not RB 40404 2543 4 too too RB 40404 2543 5 much much JJ 40404 2543 6 to to TO 40404 2543 7 say say VB 40404 2543 8 that that IN 40404 2543 9 the the DT 40404 2543 10 character character NN 40404 2543 11 and and CC 40404 2543 12 thickness thickness NN 40404 2543 13 of of IN 40404 2543 14 each each DT 40404 2543 15 formation formation NN 40404 2543 16 of of IN 40404 2543 17 the the DT 40404 2543 18 stratified stratified JJ 40404 2543 19 rocks rock NNS 40404 2543 20 depend depend VBP 40404 2543 21 primarily primarily RB 40404 2543 22 on on IN 40404 2543 23 these these DT 40404 2543 24 crustal crustal JJ 40404 2543 25 movements movement NNS 40404 2543 26 . . . 40404 2544 1 Along along IN 40404 2544 2 the the DT 40404 2544 3 Baltic baltic JJ 40404 2544 4 coast coast NN 40404 2544 5 of of IN 40404 2544 6 Sweden Sweden NNP 40404 2544 7 , , , 40404 2544 8 bench bench NN 40404 2544 9 marks mark NNS 40404 2544 10 show show VBP 40404 2544 11 that that IN 40404 2544 12 the the DT 40404 2544 13 sea sea NN 40404 2544 14 is be VBZ 40404 2544 15 withdrawing withdraw VBG 40404 2544 16 from from IN 40404 2544 17 the the DT 40404 2544 18 land land NN 40404 2544 19 at at IN 40404 2544 20 a a DT 40404 2544 21 rate rate NN 40404 2544 22 which which WDT 40404 2544 23 at at IN 40404 2544 24 the the DT 40404 2544 25 north north NN 40404 2544 26 amounts amount VBZ 40404 2544 27 to to IN 40404 2544 28 between between IN 40404 2544 29 three three CD 40404 2544 30 and and CC 40404 2544 31 four four CD 40404 2544 32 feet foot NNS 40404 2544 33 per per IN 40404 2544 34 century century NN 40404 2544 35 ; ; : 40404 2544 36 Towards towards IN 40404 2544 37 the the DT 40404 2544 38 south south NN 40404 2544 39 the the DT 40404 2544 40 rate rate NN 40404 2544 41 decreases decrease VBZ 40404 2544 42 . . . 40404 2545 1 South South NNP 40404 2545 2 of of IN 40404 2545 3 Stockholm Stockholm NNP 40404 2545 4 , , , 40404 2545 5 until until IN 40404 2545 6 recent recent JJ 40404 2545 7 years year NNS 40404 2545 8 , , , 40404 2545 9 the the DT 40404 2545 10 sea sea NN 40404 2545 11 has have VBZ 40404 2545 12 gained gain VBN 40404 2545 13 upon upon IN 40404 2545 14 the the DT 40404 2545 15 land land NN 40404 2545 16 , , , 40404 2545 17 and and CC 40404 2545 18 here here RB 40404 2545 19 in in IN 40404 2545 20 several several JJ 40404 2545 21 seaboard seaboard JJ 40404 2545 22 towns town NNS 40404 2545 23 streets street NNS 40404 2545 24 by by IN 40404 2545 25 the the DT 40404 2545 26 shore shore NN 40404 2545 27 are be VBP 40404 2545 28 still still RB 40404 2545 29 submerged submerge VBN 40404 2545 30 . . . 40404 2546 1 The the DT 40404 2546 2 rate rate NN 40404 2546 3 of of IN 40404 2546 4 oscillation oscillation NN 40404 2546 5 increases increase NNS 40404 2546 6 also also RB 40404 2546 7 from from IN 40404 2546 8 the the DT 40404 2546 9 coast coast NN 40404 2546 10 inland inland NN 40404 2546 11 . . . 40404 2547 1 On on IN 40404 2547 2 the the DT 40404 2547 3 other other JJ 40404 2547 4 hand hand NN 40404 2547 5 , , , 40404 2547 6 along along IN 40404 2547 7 the the DT 40404 2547 8 German german JJ 40404 2547 9 coast coast NN 40404 2547 10 of of IN 40404 2547 11 the the DT 40404 2547 12 Baltic Baltic NNP 40404 2547 13 the the DT 40404 2547 14 only only JJ 40404 2547 15 historic historic JJ 40404 2547 16 fluctuations fluctuation NNS 40404 2547 17 of of IN 40404 2547 18 sea sea NN 40404 2547 19 level level NN 40404 2547 20 are be VBP 40404 2547 21 those those DT 40404 2547 22 which which WDT 40404 2547 23 may may MD 40404 2547 24 be be VB 40404 2547 25 accounted account VBN 40404 2547 26 for for IN 40404 2547 27 by by IN 40404 2547 28 variations variation NNS 40404 2547 29 due due JJ 40404 2547 30 to to IN 40404 2547 31 changes change NNS 40404 2547 32 in in IN 40404 2547 33 rainfall rainfall NN 40404 2547 34 . . . 40404 2548 1 In in IN 40404 2548 2 1730 1730 CD 40404 2548 3 Celsius Celsius NNP 40404 2548 4 explained explain VBD 40404 2548 5 the the DT 40404 2548 6 changes change NNS 40404 2548 7 of of IN 40404 2548 8 level level NN 40404 2548 9 of of IN 40404 2548 10 the the DT 40404 2548 11 Swedish swedish JJ 40404 2548 12 coast coast NN 40404 2548 13 as as IN 40404 2548 14 due due JJ 40404 2548 15 to to IN 40404 2548 16 a a DT 40404 2548 17 lowering lowering NN 40404 2548 18 of of IN 40404 2548 19 the the DT 40404 2548 20 Baltic Baltic NNP 40404 2548 21 instead instead RB 40404 2548 22 of of IN 40404 2548 23 to to IN 40404 2548 24 an an DT 40404 2548 25 elevation elevation NN 40404 2548 26 of of IN 40404 2548 27 the the DT 40404 2548 28 land land NN 40404 2548 29 . . . 40404 2549 1 Are be VBP 40404 2549 2 the the DT 40404 2549 3 facts fact NNS 40404 2549 4 just just RB 40404 2549 5 stated state VBD 40404 2549 6 consistent consistent JJ 40404 2549 7 with with IN 40404 2549 8 his -PRON- PRP$ 40404 2549 9 theory theory NN 40404 2549 10 ? ? . 40404 2550 1 [ [ -LRB- 40404 2550 2 Illustration illustration NN 40404 2550 3 : : : 40404 2550 4 Fig Fig NNP 40404 2550 5 . . . 40404 2551 1 165 165 CD 40404 2551 2 . . . 40404 2552 1 Old Old NNP 40404 2552 2 Strand Strand NNP 40404 2552 3 Lines Lines NNPS 40404 2552 4 , , , 40404 2552 5 Tadousac Tadousac NNP 40404 2552 6 , , , 40404 2552 7 Quebec Quebec NNP 40404 2552 8 ] ] -RRB- 40404 2552 9 At at IN 40404 2552 10 the the DT 40404 2552 11 little little JJ 40404 2552 12 town town NN 40404 2552 13 of of IN 40404 2552 14 Tadousac Tadousac NNP 40404 2552 15 -- -- : 40404 2552 16 where where WRB 40404 2552 17 the the DT 40404 2552 18 Saguenay Saguenay NNP 40404 2552 19 River River NNP 40404 2552 20 empties empty NNS 40404 2552 21 into into IN 40404 2552 22 the the DT 40404 2552 23 St. St. NNP 40404 2552 24 Lawrence Lawrence NNP 40404 2552 25 -- -- : 40404 2552 26 there there EX 40404 2552 27 are be VBP 40404 2552 28 terraces terrace NNS 40404 2552 29 of of IN 40404 2552 30 old old JJ 40404 2552 31 sea sea NN 40404 2552 32 beaches beach NNS 40404 2552 33 , , , 40404 2552 34 some some DT 40404 2552 35 almost almost RB 40404 2552 36 as as RB 40404 2552 37 fresh fresh JJ 40404 2552 38 as as IN 40404 2552 39 recent recent JJ 40404 2552 40 railway railway NN 40404 2552 41 fills fill VBZ 40404 2552 42 , , , 40404 2552 43 the the DT 40404 2552 44 highest high JJS 40404 2552 45 standing stand VBG 40404 2552 46 two two CD 40404 2552 47 hundred hundred CD 40404 2552 48 and and CC 40404 2552 49 thirty thirty CD 40404 2552 50 feet foot NNS 40404 2552 51 above above IN 40404 2552 52 the the DT 40404 2552 53 river river NN 40404 2552 54 ( ( -LRB- 40404 2552 55 Fig fig NN 40404 2552 56 . . . 40404 2553 1 165 165 CD 40404 2553 2 ) ) -RRB- 40404 2553 3 . . . 40404 2554 1 Here here RB 40404 2554 2 the the DT 40404 2554 3 Saguenay Saguenay NNP 40404 2554 4 is be VBZ 40404 2554 5 eight eight CD 40404 2554 6 hundred hundred CD 40404 2554 7 and and CC 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are be VBP 40404 2556 4 here here RB 40404 2556 5 recorded record VBN 40404 2556 6 , , , 40404 2556 7 and and CC 40404 2556 8 to to IN 40404 2556 9 what what WDT 40404 2556 10 amount amount NN 40404 2556 11 ? ? . 40404 2557 1 [ [ -LRB- 40404 2557 2 Illustration illustration NN 40404 2557 3 : : : 40404 2557 4 Fig Fig NNP 40404 2557 5 . . . 40404 2558 1 166 166 CD 40404 2558 2 . . . 40404 2559 1 Diagram Diagram NNP 40404 2559 2 showing show VBG 40404 2559 3 Ruins Ruins NNPS 40404 2559 4 of of IN 40404 2559 5 Temple Temple NNP 40404 2559 6 , , , 40404 2559 7 North North NNP 40404 2559 8 of of IN 40404 2559 9 Naples Naples NNP 40404 2559 10 _ _ NNP 40404 2559 11 C C NNP 40404 2559 12 _ _ NNP 40404 2559 13 , , , 40404 2559 14 ancient ancient JJ 40404 2559 15 sea sea NN 40404 2559 16 cliff cliff NN 40404 2559 17 ; ; : 40404 2559 18 _ _ NNP 40404 2559 19 m m NNP 40404 2559 20 _ _ NNP 40404 2559 21 , , , 40404 2559 22 marble marble NN 40404 2559 23 pillars pillar NNS 40404 2559 24 , , , 40404 2559 25 dotted dot VBN 40404 2559 26 where where WRB 40404 2559 27 bored bore VBN 40404 2559 28 by by IN 40404 2559 29 mollusks mollusk NNS 40404 2559 30 ; ; : 40404 2559 31 _ _ NNP 40404 2559 32 sl sl NN 40404 2559 33 _ _ NNP 40404 2559 34 , , , 40404 2559 35 sea sea NN 40404 2559 36 level level NN 40404 2559 37 ] ] -RRB- 40404 2559 38 A a DT 40404 2559 39 few few JJ 40404 2559 40 miles mile NNS 40404 2559 41 north north RB 40404 2559 42 of of IN 40404 2559 43 Naples Naples NNP 40404 2559 44 , , , 40404 2559 45 Italy Italy NNP 40404 2559 46 , , , 40404 2559 47 the the DT 40404 2559 48 ruins ruin NNS 40404 2559 49 of of IN 40404 2559 50 an an DT 40404 2559 51 ancient ancient JJ 40404 2559 52 Roman roman JJ 40404 2559 53 temple temple NN 40404 2559 54 lie lie NN 40404 2559 55 by by IN 40404 2559 56 the the DT 40404 2559 57 edge edge NN 40404 2559 58 of of IN 40404 2559 59 the the DT 40404 2559 60 sea sea NN 40404 2559 61 , , , 40404 2559 62 on on IN 40404 2559 63 a a DT 40404 2559 64 narrow narrow JJ 40404 2559 65 plain plain NN 40404 2559 66 which which WDT 40404 2559 67 is be VBZ 40404 2559 68 overlooked overlook VBN 40404 2559 69 in in IN 40404 2559 70 the the DT 40404 2559 71 rear rear NN 40404 2559 72 by by IN 40404 2559 73 an an DT 40404 2559 74 old old JJ 40404 2559 75 sea sea NN 40404 2559 76 cliff cliff NN 40404 2559 77 ( ( -LRB- 40404 2559 78 Fig fig NN 40404 2559 79 . . . 40404 2560 1 166 166 CD 40404 2560 2 ) ) -RRB- 40404 2560 3 . . . 40404 2561 1 Three three CD 40404 2561 2 marble marble NN 40404 2561 3 pillars pillar NNS 40404 2561 4 are be VBP 40404 2561 5 still still RB 40404 2561 6 standing stand VBG 40404 2561 7 . . . 40404 2562 1 For for IN 40404 2562 2 eleven eleven CD 40404 2562 3 feet foot NNS 40404 2562 4 above above IN 40404 2562 5 their -PRON- PRP$ 40404 2562 6 bases basis NNS 40404 2562 7 these these DT 40404 2562 8 columns column NNS 40404 2562 9 are be VBP 40404 2562 10 uninjured uninjured JJ 40404 2562 11 , , , 40404 2562 12 for for IN 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the the DT 40404 2563 6 history history NN 40404 2563 7 of of IN 40404 2563 8 the the DT 40404 2563 9 oscillations oscillation NNS 40404 2563 10 of of IN 40404 2563 11 the the DT 40404 2563 12 region region NN 40404 2563 13 . . . 40404 2564 1 [ [ -LRB- 40404 2564 2 Illustration illustration NN 40404 2564 3 : : : 40404 2564 4 Fig Fig NNP 40404 2564 5 . . . 40404 2565 1 167 167 CD 40404 2565 2 . . . 40404 2566 1 Section section NN 40404 2566 2 in in IN 40404 2566 3 a a DT 40404 2566 4 Region region NN 40404 2566 5 of of IN 40404 2566 6 Folded Folded NNP 40404 2566 7 Rocks Rocks NNPS 40404 2566 8 ] ] -RRB- 40404 2566 9 Foldings folding NNS 40404 2566 10 of of IN 40404 2566 11 the the DT 40404 2566 12 Crust Crust NNP 40404 2566 13 The the DT 40404 2566 14 oscillations oscillation NNS 40404 2566 15 which which WDT 40404 2566 16 we -PRON- PRP 40404 2566 17 have have VBP 40404 2566 18 just just RB 40404 2566 19 described describe VBN 40404 2566 20 leave leave VB 40404 2566 21 the the DT 40404 2566 22 strata strata NN 40404 2566 23 not not RB 40404 2566 24 far far RB 40404 2566 25 from from IN 40404 2566 26 their -PRON- PRP$ 40404 2566 27 original original JJ 40404 2566 28 horizontal horizontal JJ 40404 2566 29 attitude attitude NN 40404 2566 30 . . . 40404 2567 1 Figure figure NN 40404 2567 2 167 167 CD 40404 2567 3 represents represent VBZ 40404 2567 4 a a DT 40404 2567 5 region region NN 40404 2567 6 in in IN 40404 2567 7 which which WDT 40404 2567 8 movements movement NNS 40404 2567 9 of of IN 40404 2567 10 a a DT 40404 2567 11 very very RB 40404 2567 12 different different JJ 40404 2567 13 nature nature NN 40404 2567 14 have have VBP 40404 2567 15 taken take VBN 40404 2567 16 place place NN 40404 2567 17 . . . 40404 2568 1 Here here RB 40404 2568 2 , , , 40404 2568 3 on on IN 40404 2568 4 either either DT 40404 2568 5 side side NN 40404 2568 6 of of IN 40404 2568 7 the the DT 40404 2568 8 valley valley NNP 40404 2568 9 _ _ NNP 40404 2568 10 v v NNP 40404 2568 11 _ _ NNP 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39 and and CC 40404 2594 40 called call VBD 40404 2594 41 the the DT 40404 2594 42 axis axis NN 40404 2594 43 of of IN 40404 2594 44 the the DT 40404 2594 45 fold fold NN 40404 2594 46 , , , 40404 2594 47 is be VBZ 40404 2594 48 known know VBN 40404 2594 49 as as IN 40404 2594 50 an an DT 40404 2594 51 _ _ NNP 40404 2594 52 anticline anticline NN 40404 2594 53 _ _ NNP 40404 2594 54 ( ( -LRB- 40404 2594 55 Fig Fig NNP 40404 2594 56 . . . 40404 2595 1 169 169 CD 40404 2595 2 ) ) -RRB- 40404 2595 3 . . . 40404 2596 1 A a DT 40404 2596 2 downfold downfold NN 40404 2596 3 , , , 40404 2596 4 where where WRB 40404 2596 5 the the DT 40404 2596 6 strata strata NN 40404 2596 7 dip dip NN 40404 2596 8 from from IN 40404 2596 9 either either DT 40404 2596 10 side side NN 40404 2596 11 toward toward IN 40404 2596 12 the the DT 40404 2596 13 axis axi NNS 40404 2596 14 of of IN 40404 2596 15 the the DT 40404 2596 16 trough trough NN 40404 2596 17 , , , 40404 2596 18 is be VBZ 40404 2596 19 called call VBN 40404 2596 20 a a DT 40404 2596 21 _ _ NNP 40404 2596 22 syncline syncline JJ 40404 2596 23 _ _ NN 40404 2596 24 ( ( -LRB- 40404 2596 25 Fig Fig NNP 40404 2596 26 . . . 40404 2597 1 170 170 LS 40404 2597 2 ) ) -RRB- 40404 2597 3 . . . 40404 2598 1 There there EX 40404 2598 2 is be VBZ 40404 2598 3 sometimes sometimes RB 40404 2598 4 seen see VBN 40404 2598 5 a a DT 40404 2598 6 downward downward JJ 40404 2598 7 bend bend NN 40404 2598 8 in in IN 40404 2598 9 horizontal horizontal JJ 40404 2598 10 or or CC 40404 2598 11 gently gently RB 40404 2598 12 inclined incline VBN 40404 2598 13 strata strata NN 40404 2598 14 , , , 40404 2598 15 by by IN 40404 2598 16 which which WDT 40404 2598 17 they -PRON- PRP 40404 2598 18 descend descend VBP 40404 2598 19 to to IN 40404 2598 20 a a DT 40404 2598 21 lower low JJR 40404 2598 22 level level NN 40404 2598 23 . . . 40404 2599 1 Such such PDT 40404 2599 2 a a DT 40404 2599 3 single single JJ 40404 2599 4 flexure flexure NN 40404 2599 5 is be VBZ 40404 2599 6 a a DT 40404 2599 7 _ _ NNP 40404 2599 8 monocline monocline NN 40404 2599 9 _ _ NNP 40404 2599 10 ( ( -LRB- 40404 2599 11 Fig Fig NNP 40404 2599 12 . . . 40404 2600 1 171 171 LS 40404 2600 2 ) ) -RRB- 40404 2600 3 . . . 40404 2601 1 [ [ -LRB- 40404 2601 2 Illustration illustration NN 40404 2601 3 : : : 40404 2601 4 Fig Fig NNP 40404 2601 5 . . . 40404 2602 1 171 171 CD 40404 2602 2 . . . 40404 2603 1 A a DT 40404 2603 2 Monocline Monocline NNP 40404 2603 3 ] ] -RRB- 40404 2603 4 = = NFP 40404 2603 5 Degrees degree NNS 40404 2603 6 of of IN 40404 2603 7 folding.= folding.= NN 40404 2603 8 Folds fold NNS 40404 2603 9 vary vary VBP 40404 2603 10 in in IN 40404 2603 11 degree degree NN 40404 2603 12 from from IN 40404 2603 13 broad broad JJ 40404 2603 14 , , , 40404 2603 15 low low JJ 40404 2603 16 swells swell NNS 40404 2603 17 , , , 40404 2603 18 which which WDT 40404 2603 19 can can MD 40404 2603 20 hardly hardly RB 40404 2603 21 be be VB 40404 2603 22 detected detect VBN 40404 2603 23 , , , 40404 2603 24 to to IN 40404 2603 25 the the DT 40404 2603 26 most most RBS 40404 2603 27 highly highly RB 40404 2603 28 contorted contorted JJ 40404 2603 29 and and CC 40404 2603 30 complicated complicated JJ 40404 2603 31 structures structure NNS 40404 2603 32 . . . 40404 2604 1 In in IN 40404 2604 2 _ _ NNP 40404 2604 3 symmetric symmetric JJ 40404 2604 4 _ _ NNP 40404 2604 5 folds fold NNS 40404 2604 6 ( ( -LRB- 40404 2604 7 Figs fig NNS 40404 2604 8 . . . 40404 2605 1 169 169 CD 40404 2605 2 and and CC 40404 2605 3 180 180 CD 40404 2605 4 ) ) -RRB- 40404 2605 5 the the DT 40404 2605 6 dips dip NNS 40404 2605 7 of of IN 40404 2605 8 the the DT 40404 2605 9 rocks rock NNS 40404 2605 10 on on IN 40404 2605 11 each each DT 40404 2605 12 side side NN 40404 2605 13 the the DT 40404 2605 14 axis axi NNS 40404 2605 15 of of IN 40404 2605 16 the the DT 40404 2605 17 fold fold NN 40404 2605 18 are be VBP 40404 2605 19 equal equal JJ 40404 2605 20 . . . 40404 2606 1 In in IN 40404 2606 2 _ _ NNP 40404 2606 3 unsymmetrical unsymmetrical JJ 40404 2606 4 _ _ NNP 40404 2606 5 folds fold VBZ 40404 2606 6 one one CD 40404 2606 7 limb limb NN 40404 2606 8 is be VBZ 40404 2606 9 steeper steep JJR 40404 2606 10 than than IN 40404 2606 11 the the DT 40404 2606 12 other other JJ 40404 2606 13 , , , 40404 2606 14 as as IN 40404 2606 15 in in IN 40404 2606 16 the the DT 40404 2606 17 anticline anticline NN 40404 2606 18 in in IN 40404 2606 19 Figure Figure NNP 40404 2606 20 167 167 CD 40404 2606 21 . . . 40404 2607 1 In in IN 40404 2607 2 _ _ NNP 40404 2607 3 overturned overturn VBD 40404 2607 4 _ _ NNP 40404 2607 5 folds fold NNS 40404 2607 6 ( ( -LRB- 40404 2607 7 Figs fig NNS 40404 2607 8 . . . 40404 2608 1 167 167 CD 40404 2608 2 and and CC 40404 2608 3 172 172 CD 40404 2608 4 ) ) -RRB- 40404 2608 5 one one CD 40404 2608 6 limb limb NN 40404 2608 7 is be VBZ 40404 2608 8 inclined incline VBN 40404 2608 9 beyond beyond IN 40404 2608 10 the the DT 40404 2608 11 perpendicular perpendicular NN 40404 2608 12 . . . 40404 2609 1 _ _ NNP 40404 2609 2 Fan Fan NNP 40404 2609 3 folds fold NNS 40404 2609 4 _ _ NNP 40404 2609 5 have have VBP 40404 2609 6 been be VBN 40404 2609 7 so so RB 40404 2609 8 pinched pinch VBN 40404 2609 9 that that IN 40404 2609 10 the the DT 40404 2609 11 original original JJ 40404 2609 12 anticlines anticline NNS 40404 2609 13 are be VBP 40404 2609 14 left leave VBN 40404 2609 15 broader broad JJR 40404 2609 16 at at IN 40404 2609 17 the the DT 40404 2609 18 top top NN 40404 2609 19 than than IN 40404 2609 20 at at IN 40404 2609 21 the the DT 40404 2609 22 bottom bottom NN 40404 2609 23 ( ( -LRB- 40404 2609 24 Fig fig NN 40404 2609 25 . . . 40404 2610 1 173 173 LS 40404 2610 2 ) ) -RRB- 40404 2610 3 . . . 40404 2611 1 [ [ -LRB- 40404 2611 2 Illustration illustration NN 40404 2611 3 : : : 40404 2611 4 Fig Fig NNP 40404 2611 5 . . . 40404 2612 1 172 172 CD 40404 2612 2 . . . 40404 2613 1 Overturned overturn VBN 40404 2613 2 Fold Fold NNP 40404 2613 3 , , , 40404 2613 4 Vermont Vermont NNP 40404 2613 5 ] ] -RRB- 40404 2613 6 In in IN 40404 2613 7 folds fold NNS 40404 2613 8 where where WRB 40404 2613 9 the the DT 40404 2613 10 compression compression NN 40404 2613 11 has have VBZ 40404 2613 12 been be VBN 40404 2613 13 great great JJ 40404 2613 14 the the DT 40404 2613 15 layers layer NNS 40404 2613 16 are be VBP 40404 2613 17 often often RB 40404 2613 18 found find VBN 40404 2613 19 thickened thicken VBN 40404 2613 20 at at IN 40404 2613 21 the the DT 40404 2613 22 crest crest NN 40404 2613 23 and and CC 40404 2613 24 thinned thin VBD 40404 2613 25 along along IN 40404 2613 26 the the DT 40404 2613 27 limbs limb NNS 40404 2613 28 ( ( -LRB- 40404 2613 29 174 174 CD 40404 2613 30 ) ) -RRB- 40404 2613 31 . . . 40404 2614 1 Where where WRB 40404 2614 2 strong strong JJ 40404 2614 3 rocks rock NNS 40404 2614 4 such such JJ 40404 2614 5 as as IN 40404 2614 6 heavy heavy JJ 40404 2614 7 limestones 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Fan NNP 40404 2617 2 Folds Folds NNP 40404 2617 3 , , , 40404 2617 4 the the DT 40404 2617 5 Alps Alps NNPS 40404 2617 6 ] ] -RRB- 40404 2617 7 = = SYM 40404 2617 8 Systems system NNS 40404 2617 9 of of IN 40404 2617 10 folds.= folds.= CD 40404 2617 11 As as IN 40404 2617 12 a a DT 40404 2617 13 rule rule NN 40404 2617 14 , , , 40404 2617 15 folds fold NNS 40404 2617 16 occur occur VBP 40404 2617 17 in in IN 40404 2617 18 systems system NNS 40404 2617 19 . . . 40404 2618 1 Over over IN 40404 2618 2 the the DT 40404 2618 3 Appalachian appalachian JJ 40404 2618 4 mountain mountain NN 40404 2618 5 belt belt NN 40404 2618 6 , , , 40404 2618 7 for for IN 40404 2618 8 example example NN 40404 2618 9 , , , 40404 2618 10 extending extend VBG 40404 2618 11 from from IN 40404 2618 12 northeastern northeastern JJ 40404 2618 13 Pennsylvania Pennsylvania NNP 40404 2618 14 to to TO 40404 2618 15 northern northern JJ 40404 2618 16 Alabama Alabama NNP 40404 2618 17 and and CC 40404 2618 18 Georgia Georgia NNP 40404 2618 19 , , , 40404 2618 20 the the DT 40404 2618 21 earth earth NN 40404 2618 22 's 's POS 40404 2618 23 crust crust NN 40404 2618 24 has have VBZ 40404 2618 25 been be VBN 40404 2618 26 thrown throw VBN 40404 2618 27 into into IN 40404 2618 28 a a DT 40404 2618 29 series series NN 40404 2618 30 of of IN 40404 2618 31 parallel parallel JJ 40404 2618 32 folds fold NNS 40404 2618 33 whose whose WP$ 40404 2618 34 axes axis NNS 40404 2618 35 run run VBP 40404 2618 36 from from IN 40404 2618 37 northeast northeast RB 40404 2618 38 to to TO 40404 2618 39 southwest southwest VB 40404 2618 40 ( ( -LRB- 40404 2618 41 Fig fig NN 40404 2618 42 . . . 40404 2619 1 175 175 CD 40404 2619 2 ) ) -RRB- 40404 2619 3 . . . 40404 2620 1 In in IN 40404 2620 2 Pennsylvania Pennsylvania NNP 40404 2620 3 one one PRP 40404 2620 4 may may MD 40404 2620 5 count count VB 40404 2620 6 a a DT 40404 2620 7 score score NN 40404 2620 8 or or CC 40404 2620 9 more more JJR 40404 2620 10 of of IN 40404 2620 11 these these DT 40404 2620 12 earth earth NN 40404 2620 13 waves,--some waves,--some NNP 40404 2620 14 but but CC 40404 2620 15 from from IN 40404 2620 16 ten ten CD 40404 2620 17 to to TO 40404 2620 18 twenty twenty CD 40404 2620 19 miles mile NNS 40404 2620 20 in in IN 40404 2620 21 length length NN 40404 2620 22 , , , 40404 2620 23 and and CC 40404 2620 24 some some DT 40404 2620 25 extending extend VBG 40404 2620 26 as as RB 40404 2620 27 much much JJ 40404 2620 28 as as IN 40404 2620 29 two two CD 40404 2620 30 hundred hundred CD 40404 2620 31 miles mile NNS 40404 2620 32 before before IN 40404 2620 33 they -PRON- PRP 40404 2620 34 die die VBP 40404 2620 35 away away RB 40404 2620 36 . . . 40404 2621 1 On on IN 40404 2621 2 the the DT 40404 2621 3 eastern eastern JJ 40404 2621 4 part part NN 40404 2621 5 of of IN 40404 2621 6 this this DT 40404 2621 7 belt belt NN 40404 2621 8 the the DT 40404 2621 9 folds fold NNS 40404 2621 10 are be VBP 40404 2621 11 steeper steep JJR 40404 2621 12 and and CC 40404 2621 13 more more RBR 40404 2621 14 numerous numerous JJ 40404 2621 15 than than IN 40404 2621 16 on on IN 40404 2621 17 the the DT 40404 2621 18 western western JJ 40404 2621 19 side side NN 40404 2621 20 . . . 40404 2622 1 [ [ -LRB- 40404 2622 2 Illustration illustration NN 40404 2622 3 : : : 40404 2622 4 Fig Fig NNP 40404 2622 5 . . . 40404 2623 1 174 174 CD 40404 2623 2 . . . 40404 2624 1 Folds fold NNS 40404 2624 2 with with IN 40404 2624 3 Layers Layers NNPS 40404 2624 4 thickened thicken VBD 40404 2624 5 at at IN 40404 2624 6 the the DT 40404 2624 7 Crest Crest NNP 40404 2624 8 and and CC 40404 2624 9 thinned thin VBD 40404 2624 10 along along IN 40404 2624 11 the the DT 40404 2624 12 Limbs Limbs NNPS 40404 2624 13 ] ] -RRB- 40404 2624 14 = = NFP 40404 2624 15 Cause cause NN 40404 2624 16 and and CC 40404 2624 17 conditions condition NNS 40404 2624 18 of of IN 40404 2624 19 folding.= folding.= CD 40404 2624 20 The the DT 40404 2624 21 sections section NNS 40404 2624 22 which which WDT 40404 2624 23 we -PRON- PRP 40404 2624 24 have have VBP 40404 2624 25 studied study VBN 40404 2624 26 suggest suggest VBP 40404 2624 27 that that IN 40404 2624 28 rocks rock NNS 40404 2624 29 are be VBP 40404 2624 30 folded fold VBN 40404 2624 31 by by IN 40404 2624 32 lateral lateral JJ 40404 2624 33 pressure pressure NN 40404 2624 34 . . . 40404 2625 1 While while IN 40404 2625 2 a a DT 40404 2625 3 single single JJ 40404 2625 4 , , , 40404 2625 5 simple simple JJ 40404 2625 6 fold fold NN 40404 2625 7 might may MD 40404 2625 8 be be VB 40404 2625 9 produced produce VBN 40404 2625 10 by by IN 40404 2625 11 a a DT 40404 2625 12 heave heave NN 40404 2625 13 , , , 40404 2625 14 a a DT 40404 2625 15 series series NN 40404 2625 16 of of IN 40404 2625 17 folds fold NNS 40404 2625 18 , , , 40404 2625 19 including include VBG 40404 2625 20 overturns overturn NNS 40404 2625 21 , , , 40404 2625 22 fan fan NN 40404 2625 23 folds fold NNS 40404 2625 24 , , , 40404 2625 25 and and CC 40404 2625 26 folds fold NNS 40404 2625 27 thickened thicken VBD 40404 2625 28 on on IN 40404 2625 29 their -PRON- PRP$ 40404 2625 30 crests crest NNS 40404 2625 31 at at IN 40404 2625 32 the the DT 40404 2625 33 expense expense NN 40404 2625 34 of of IN 40404 2625 35 their -PRON- PRP$ 40404 2625 36 limbs limb NNS 40404 2625 37 , , , 40404 2625 38 could could MD 40404 2625 39 only only RB 40404 2625 40 be be VB 40404 2625 41 made make VBN 40404 2625 42 in in IN 40404 2625 43 one one CD 40404 2625 44 way,--by way,--by JJ 40404 2625 45 pressure pressure NN 40404 2625 46 from from IN 40404 2625 47 the the DT 40404 2625 48 side side NN 40404 2625 49 . . . 40404 2626 1 Experiment experiment NN 40404 2626 2 has have VBZ 40404 2626 3 reproduced reproduce VBN 40404 2626 4 all all DT 40404 2626 5 forms form NNS 40404 2626 6 of of IN 40404 2626 7 folds fold NNS 40404 2626 8 by by IN 40404 2626 9 subjecting subject VBG 40404 2626 10 to to IN 40404 2626 11 lateral lateral JJ 40404 2626 12 thrust thrust VBN 40404 2626 13 layers layer NNS 40404 2626 14 of of IN 40404 2626 15 plastic plastic NN 40404 2626 16 material material NN 40404 2626 17 such such JJ 40404 2626 18 as as IN 40404 2626 19 wax wax NN 40404 2626 20 . . . 40404 2627 1 Vast vast JJ 40404 2627 2 as as IN 40404 2627 3 the the DT 40404 2627 4 force force NN 40404 2627 5 must must MD 40404 2627 6 have have VB 40404 2627 7 been be VBN 40404 2627 8 which which WDT 40404 2627 9 could could MD 40404 2627 10 fold fold VB 40404 2627 11 the the DT 40404 2627 12 solid solid JJ 40404 2627 13 rocks rock NNS 40404 2627 14 of of IN 40404 2627 15 the the DT 40404 2627 16 crust crust NN 40404 2627 17 as as IN 40404 2627 18 one one PRP 40404 2627 19 may may MD 40404 2627 20 crumple crumple VB 40404 2627 21 the the DT 40404 2627 22 leaves leave NNS 40404 2627 23 of of IN 40404 2627 24 a a DT 40404 2627 25 magazine magazine NN 40404 2627 26 in in IN 40404 2627 27 the the DT 40404 2627 28 fingers finger NNS 40404 2627 29 , , , 40404 2627 30 it -PRON- PRP 40404 2627 31 is be VBZ 40404 2627 32 only only RB 40404 2627 33 under under IN 40404 2627 34 certain certain JJ 40404 2627 35 conditions condition NNS 40404 2627 36 that that WDT 40404 2627 37 it -PRON- PRP 40404 2627 38 could could MD 40404 2627 39 have have VB 40404 2627 40 produced produce VBN 40404 2627 41 the the DT 40404 2627 42 results result NNS 40404 2627 43 which which WDT 40404 2627 44 we -PRON- PRP 40404 2627 45 see see VBP 40404 2627 46 . . . 40404 2628 1 Rocks rock NNS 40404 2628 2 are be VBP 40404 2628 3 brittle brittle JJ 40404 2628 4 , , , 40404 2628 5 and and CC 40404 2628 6 it -PRON- PRP 40404 2628 7 is be VBZ 40404 2628 8 only only RB 40404 2628 9 when when WRB 40404 2628 10 under under IN 40404 2628 11 a a DT 40404 2628 12 _ _ NNP 40404 2628 13 heavy heavy JJ 40404 2628 14 load load NN 40404 2628 15 _ _ NNP 40404 2628 16 and and CC 40404 2628 17 by by IN 40404 2628 18 _ _ NNP 40404 2628 19 great great JJ 40404 2628 20 pressure pressure NN 40404 2628 21 slowly slowly RB 40404 2628 22 applied apply VBD 40404 2628 23 _ _ NNP 40404 2628 24 , , , 40404 2628 25 that that IN 40404 2628 26 they -PRON- PRP 40404 2628 27 can can MD 40404 2628 28 thus thus RB 40404 2628 29 be be VB 40404 2628 30 folded fold VBN 40404 2628 31 and and CC 40404 2628 32 bent bend VBN 40404 2628 33 instead instead RB 40404 2628 34 of of IN 40404 2628 35 being be VBG 40404 2628 36 crushed crush VBN 40404 2628 37 to to IN 40404 2628 38 pieces piece NNS 40404 2628 39 . . . 40404 2629 1 Under under IN 40404 2629 2 these these DT 40404 2629 3 conditions condition NNS 40404 2629 4 , , , 40404 2629 5 experiments experiment NNS 40404 2629 6 prove prove VBP 40404 2629 7 that that IN 40404 2629 8 not not RB 40404 2629 9 only only RB 40404 2629 10 metals metal NNS 40404 2629 11 such such JJ 40404 2629 12 as as IN 40404 2629 13 steel steel NN 40404 2629 14 , , , 40404 2629 15 but but CC 40404 2629 16 also also RB 40404 2629 17 brittle brittle JJ 40404 2629 18 rocks rock NNS 40404 2629 19 such such JJ 40404 2629 20 as as IN 40404 2629 21 marble marble NN 40404 2629 22 , , , 40404 2629 23 can can MD 40404 2629 24 be be VB 40404 2629 25 deformed deform VBN 40404 2629 26 and and CC 40404 2629 27 molded mold VBN 40404 2629 28 and and CC 40404 2629 29 made make VBN 40404 2629 30 to to TO 40404 2629 31 flow flow VB 40404 2629 32 like like IN 40404 2629 33 plastic plastic NN 40404 2629 34 clay clay NN 40404 2629 35 . . . 40404 2630 1 [ [ -LRB- 40404 2630 2 Illustration illustration NN 40404 2630 3 : : : 40404 2630 4 Fig Fig NNP 40404 2630 5 . . . 40404 2631 1 175 175 CD 40404 2631 2 . . . 40404 2632 1 Relief Relief NNP 40404 2632 2 Map Map NNP 40404 2632 3 of of IN 40404 2632 4 the the DT 40404 2632 5 Northern northern JJ 40404 2632 6 Appalachian Appalachian NNP 40404 2632 7 Region Region NNP 40404 2632 8 From from IN 40404 2632 9 Bingham Bingham NNP 40404 2632 10 's 's POS 40404 2632 11 _ _ NNP 40404 2632 12 Geographic Geographic NNP 40404 2632 13 Influences Influences NNPS 40404 2632 14 in in IN 40404 2632 15 American American NNP 40404 2632 16 History History NNP 40404 2632 17 _ _ NNP 40404 2632 18 ] ] -RRB- 40404 2632 19 = = SYM 40404 2632 20 Zone Zone NNP 40404 2632 21 of of IN 40404 2632 22 flow flow NN 40404 2632 23 , , , 40404 2632 24 zone zone NN 40404 2632 25 of of IN 40404 2632 26 flow flow NN 40404 2632 27 and and CC 40404 2632 28 fracture fracture NN 40404 2632 29 , , , 40404 2632 30 and and CC 40404 2632 31 zone zone NN 40404 2632 32 of of IN 40404 2632 33 fracture.= fracture.= NNP 40404 2632 34 We -PRON- PRP 40404 2632 35 may may MD 40404 2632 36 believe believe VB 40404 2632 37 that that IN 40404 2632 38 at at IN 40404 2632 39 depths depth NNS 40404 2632 40 which which WDT 40404 2632 41 must must MD 40404 2632 42 be be VB 40404 2632 43 reckoned reckon VBN 40404 2632 44 in in IN 40404 2632 45 tens ten NNS 40404 2632 46 of of IN 40404 2632 47 thousands thousand NNS 40404 2632 48 of of IN 40404 2632 49 feet foot NNS 40404 2632 50 the the DT 40404 2632 51 load load NN 40404 2632 52 of of IN 40404 2632 53 overlying overlying NN 40404 2632 54 rocks rock NNS 40404 2632 55 is be VBZ 40404 2632 56 so so RB 40404 2632 57 great great JJ 40404 2632 58 that that IN 40404 2632 59 rocks rock NNS 40404 2632 60 of of IN 40404 2632 61 all all DT 40404 2632 62 kinds kind NNS 40404 2632 63 yield yield VBP 40404 2632 64 by by IN 40404 2632 65 folding fold VBG 40404 2632 66 to to IN 40404 2632 67 lateral lateral JJ 40404 2632 68 pressure pressure NN 40404 2632 69 , , , 40404 2632 70 and and CC 40404 2632 71 flow flow VB 40404 2632 72 instead instead RB 40404 2632 73 of of IN 40404 2632 74 breaking break VBG 40404 2632 75 . . . 40404 2633 1 Indeed indeed RB 40404 2633 2 , , , 40404 2633 3 at at IN 40404 2633 4 such such JJ 40404 2633 5 profound profound JJ 40404 2633 6 depths depth NNS 40404 2633 7 and and CC 40404 2633 8 under under IN 40404 2633 9 such such JJ 40404 2633 10 inconceivable inconceivable JJ 40404 2633 11 weight weight NN 40404 2633 12 no no DT 40404 2633 13 cavity cavity NN 40404 2633 14 can can MD 40404 2633 15 form form VB 40404 2633 16 , , , 40404 2633 17 and and CC 40404 2633 18 any any DT 40404 2633 19 fractures fracture NNS 40404 2633 20 would would MD 40404 2633 21 be be VB 40404 2633 22 healed heal VBN 40404 2633 23 at at IN 40404 2633 24 once once RB 40404 2633 25 by by IN 40404 2633 26 the the DT 40404 2633 27 welding welding NN 40404 2633 28 of of IN 40404 2633 29 grain grain NN 40404 2633 30 to to IN 40404 2633 31 grain grain NN 40404 2633 32 . . . 40404 2634 1 At at IN 40404 2634 2 less less JJR 40404 2634 3 depths depth NNS 40404 2634 4 there there EX 40404 2634 5 exists exist VBZ 40404 2634 6 a a DT 40404 2634 7 zone zone NN 40404 2634 8 where where WRB 40404 2634 9 soft soft JJ 40404 2634 10 rocks rock NNS 40404 2634 11 fold fold VBP 40404 2634 12 and and CC 40404 2634 13 flow flow VBP 40404 2634 14 under under IN 40404 2634 15 stress stress NN 40404 2634 16 , , , 40404 2634 17 and and CC 40404 2634 18 hard hard JJ 40404 2634 19 rocks rock NNS 40404 2634 20 are be VBP 40404 2634 21 fractured fracture VBN 40404 2634 22 ; ; : 40404 2634 23 while while IN 40404 2634 24 at at IN 40404 2634 25 and and CC 40404 2634 26 near near IN 40404 2634 27 the the DT 40404 2634 28 surface surface NN 40404 2634 29 hard hard JJ 40404 2634 30 and and CC 40404 2634 31 soft soft JJ 40404 2634 32 rocks rock NNS 40404 2634 33 alike alike RB 40404 2634 34 yield yield NN 40404 2634 35 by by IN 40404 2634 36 fracture fracture NN 40404 2634 37 to to IN 40404 2634 38 strong strong JJ 40404 2634 39 pressure pressure NN 40404 2634 40 . . . 40404 2635 1 Structures structure NNS 40404 2635 2 developed develop VBN 40404 2635 3 in in IN 40404 2635 4 Compressed compress VBN 40404 2635 5 Rocks Rocks NNPS 40404 2635 6 Deformed Deformed NNP 40404 2635 7 rocks rock NNS 40404 2635 8 show show VBP 40404 2635 9 the the DT 40404 2635 10 effects effect NNS 40404 2635 11 of of IN 40404 2635 12 the the DT 40404 2635 13 stresses stress NNS 40404 2635 14 to to TO 40404 2635 15 which which WDT 40404 2635 16 they -PRON- PRP 40404 2635 17 have have VBP 40404 2635 18 yielded yield VBN 40404 2635 19 , , , 40404 2635 20 not not RB 40404 2635 21 only only RB 40404 2635 22 in in IN 40404 2635 23 the the DT 40404 2635 24 immense immense JJ 40404 2635 25 folds fold NNS 40404 2635 26 into into IN 40404 2635 27 which which WDT 40404 2635 28 they -PRON- PRP 40404 2635 29 have have VBP 40404 2635 30 been be VBN 40404 2635 31 thrown throw VBN 40404 2635 32 but but CC 40404 2635 33 in in IN 40404 2635 34 their -PRON- PRP$ 40404 2635 35 smallest small JJS 40404 2635 36 parts part NNS 40404 2635 37 as as RB 40404 2635 38 well well RB 40404 2635 39 . . . 40404 2636 1 A a DT 40404 2636 2 hand hand NN 40404 2636 3 specimen speciman NNS 40404 2636 4 of of IN 40404 2636 5 slate slate NN 40404 2636 6 , , , 40404 2636 7 or or CC 40404 2636 8 even even RB 40404 2636 9 a a DT 40404 2636 10 particle particle NN 40404 2636 11 under under IN 40404 2636 12 the the DT 40404 2636 13 microscope microscope NN 40404 2636 14 , , , 40404 2636 15 may may MD 40404 2636 16 show show VB 40404 2636 17 plications plication NNS 40404 2636 18 similar similar JJ 40404 2636 19 in in IN 40404 2636 20 form form NN 40404 2636 21 and and CC 40404 2636 22 origin origin NN 40404 2636 23 to to IN 40404 2636 24 the the DT 40404 2636 25 foldings folding NNS 40404 2636 26 which which WDT 40404 2636 27 have have VBP 40404 2636 28 produced produce VBN 40404 2636 29 ranges range NNS 40404 2636 30 of of IN 40404 2636 31 mountains mountain NNS 40404 2636 32 . . . 40404 2637 1 A a DT 40404 2637 2 tiny tiny JJ 40404 2637 3 flake flake NN 40404 2637 4 of of IN 40404 2637 5 mica mica NNP 40404 2637 6 in in IN 40404 2637 7 the the DT 40404 2637 8 rocks rock NNS 40404 2637 9 of of IN 40404 2637 10 the the DT 40404 2637 11 Alps Alps NNPS 40404 2637 12 may may MD 40404 2637 13 be be VB 40404 2637 14 puckered pucker VBN 40404 2637 15 by by IN 40404 2637 16 the the DT 40404 2637 17 same same JJ 40404 2637 18 resistless resistless JJ 40404 2637 19 forces force NNS 40404 2637 20 which which WDT 40404 2637 21 have have VBP 40404 2637 22 folded fold VBN 40404 2637 23 miles mile NNS 40404 2637 24 of of IN 40404 2637 25 solid solid JJ 40404 2637 26 rock rock NN 40404 2637 27 to to TO 40404 2637 28 form form VB 40404 2637 29 that that DT 40404 2637 30 lofty lofty JJ 40404 2637 31 range range NN 40404 2637 32 . . . 40404 2638 1 = = NFP 40404 2638 2 Slaty slaty NN 40404 2638 3 cleavage.= cleavage.= CD 40404 2638 4 Rocks rock NNS 40404 2638 5 which which WDT 40404 2638 6 have have VBP 40404 2638 7 yielded yield VBN 40404 2638 8 to to TO 40404 2638 9 pressure pressure NN 40404 2638 10 often often RB 40404 2638 11 split split VBN 40404 2638 12 easily easily RB 40404 2638 13 in in IN 40404 2638 14 a a DT 40404 2638 15 certain certain JJ 40404 2638 16 direction direction NN 40404 2638 17 across across IN 40404 2638 18 the the DT 40404 2638 19 bedding bedding NN 40404 2638 20 planes plane NNS 40404 2638 21 . . . 40404 2639 1 This this DT 40404 2639 2 cleavage cleavage NN 40404 2639 3 is be VBZ 40404 2639 4 known know VBN 40404 2639 5 as as IN 40404 2639 6 slaty slaty NN 40404 2639 7 cleavage cleavage VBP 40404 2639 8 , , , 40404 2639 9 since since IN 40404 2639 10 it -PRON- PRP 40404 2639 11 is be VBZ 40404 2639 12 most most RBS 40404 2639 13 perfectly perfectly RB 40404 2639 14 developed develop VBN 40404 2639 15 in in IN 40404 2639 16 fine fine NN 40404 2639 17 - - HYPH 40404 2639 18 grained grained JJ 40404 2639 19 , , , 40404 2639 20 homogeneous homogeneous JJ 40404 2639 21 rocks rock NNS 40404 2639 22 , , , 40404 2639 23 such such JJ 40404 2639 24 as as IN 40404 2639 25 slates slate NNS 40404 2639 26 , , , 40404 2639 27 which which WDT 40404 2639 28 cleave cleave VBP 40404 2639 29 to to IN 40404 2639 30 the the DT 40404 2639 31 thin thin JJ 40404 2639 32 , , , 40404 2639 33 smooth smooth RB 40404 2639 34 - - HYPH 40404 2639 35 surfaced surfaced JJ 40404 2639 36 plates plate NNS 40404 2639 37 with with IN 40404 2639 38 which which WDT 40404 2639 39 we -PRON- PRP 40404 2639 40 are be VBP 40404 2639 41 familiar familiar JJ 40404 2639 42 in in IN 40404 2639 43 the the DT 40404 2639 44 slates slate NNS 40404 2639 45 used use VBN 40404 2639 46 in in IN 40404 2639 47 roofing roofing NN 40404 2639 48 and and CC 40404 2639 49 for for IN 40404 2639 50 ciphering ciphering NN 40404 2639 51 and and CC 40404 2639 52 blackboards blackboard NNS 40404 2639 53 . . . 40404 2640 1 In in IN 40404 2640 2 coarse coarse RB 40404 2640 3 - - HYPH 40404 2640 4 grained grain VBN 40404 2640 5 rocks rock NNS 40404 2640 6 , , , 40404 2640 7 pressure pressure NN 40404 2640 8 develops develop VBZ 40404 2640 9 more more RBR 40404 2640 10 distant distant JJ 40404 2640 11 partings parting NNS 40404 2640 12 which which WDT 40404 2640 13 separate separate VBP 40404 2640 14 the the DT 40404 2640 15 rocks rock NNS 40404 2640 16 into into IN 40404 2640 17 blocks block NNS 40404 2640 18 . . . 40404 2641 1 Slaty Slaty NNS 40404 2641 2 cleavage cleavage VBP 40404 2641 3 can can MD 40404 2641 4 not not RB 40404 2641 5 be be VB 40404 2641 6 due due IN 40404 2641 7 to to IN 40404 2641 8 lamination lamination NN 40404 2641 9 , , , 40404 2641 10 since since IN 40404 2641 11 it -PRON- PRP 40404 2641 12 commonly commonly RB 40404 2641 13 crosses cross VBZ 40404 2641 14 bedding bed VBG 40404 2641 15 planes plane NNS 40404 2641 16 at at IN 40404 2641 17 an an DT 40404 2641 18 angle angle NN 40404 2641 19 , , , 40404 2641 20 while while IN 40404 2641 21 these these DT 40404 2641 22 planes plane NNS 40404 2641 23 have have VBP 40404 2641 24 been be VBN 40404 2641 25 often often RB 40404 2641 26 well well JJ 40404 2641 27 - - HYPH 40404 2641 28 nigh nigh JJ 40404 2641 29 or or CC 40404 2641 30 quite quite RB 40404 2641 31 obliterated obliterated JJ 40404 2641 32 . . . 40404 2642 1 Examining examine VBG 40404 2642 2 slate slate NN 40404 2642 3 with with IN 40404 2642 4 a a DT 40404 2642 5 microscope microscope NN 40404 2642 6 , , , 40404 2642 7 we -PRON- PRP 40404 2642 8 find find VBP 40404 2642 9 that that IN 40404 2642 10 its -PRON- PRP$ 40404 2642 11 cleavage cleavage NN 40404 2642 12 is be VBZ 40404 2642 13 due due JJ 40404 2642 14 to to IN 40404 2642 15 the the DT 40404 2642 16 grain grain NN 40404 2642 17 of of IN 40404 2642 18 the the DT 40404 2642 19 rock rock NN 40404 2642 20 . . . 40404 2643 1 Its -PRON- PRP$ 40404 2643 2 particles particle NNS 40404 2643 3 are be VBP 40404 2643 4 flattened flatten VBN 40404 2643 5 and and CC 40404 2643 6 lie lie VB 40404 2643 7 with with IN 40404 2643 8 their -PRON- PRP$ 40404 2643 9 broad broad JJ 40404 2643 10 faces face NNS 40404 2643 11 in in IN 40404 2643 12 parallel parallel JJ 40404 2643 13 planes plane NNS 40404 2643 14 , , , 40404 2643 15 along along IN 40404 2643 16 which which WDT 40404 2643 17 the the DT 40404 2643 18 rock rock NN 40404 2643 19 naturally naturally RB 40404 2643 20 splits split VBZ 40404 2643 21 more more RBR 40404 2643 22 easily easily RB 40404 2643 23 than than IN 40404 2643 24 in in IN 40404 2643 25 any any DT 40404 2643 26 other other JJ 40404 2643 27 direction direction NN 40404 2643 28 . . . 40404 2644 1 The the DT 40404 2644 2 irregular irregular JJ 40404 2644 3 grains grain NNS 40404 2644 4 of of IN 40404 2644 5 the the DT 40404 2644 6 mud mud NN 40404 2644 7 which which WDT 40404 2644 8 has have VBZ 40404 2644 9 been be VBN 40404 2644 10 altered alter VBN 40404 2644 11 to to IN 40404 2644 12 slate slate NN 40404 2644 13 have have VBP 40404 2644 14 been be VBN 40404 2644 15 squeezed squeeze VBN 40404 2644 16 flat flat JJ 40404 2644 17 by by IN 40404 2644 18 a a DT 40404 2644 19 pressure pressure NN 40404 2644 20 exerted exert VBN 40404 2644 21 at at IN 40404 2644 22 right right JJ 40404 2644 23 angles angle NNS 40404 2644 24 to to IN 40404 2644 25 the the DT 40404 2644 26 plane plane NN 40404 2644 27 of of IN 40404 2644 28 cleavage cleavage NN 40404 2644 29 . . . 40404 2645 1 Cleavage cleavage NN 40404 2645 2 is be VBZ 40404 2645 3 found find VBN 40404 2645 4 only only RB 40404 2645 5 in in IN 40404 2645 6 folded fold VBN 40404 2645 7 rocks rock NNS 40404 2645 8 , , , 40404 2645 9 and and CC 40404 2645 10 , , , 40404 2645 11 as as IN 40404 2645 12 we -PRON- PRP 40404 2645 13 may may MD 40404 2645 14 see see VB 40404 2645 15 in in IN 40404 2645 16 Figure Figure NNP 40404 2645 17 176 176 CD 40404 2645 18 , , , 40404 2645 19 the the DT 40404 2645 20 strike strike NN 40404 2645 21 of of IN 40404 2645 22 the the DT 40404 2645 23 cleavage cleavage NN 40404 2645 24 runs run VBZ 40404 2645 25 parallel parallel RB 40404 2645 26 to to IN 40404 2645 27 the the DT 40404 2645 28 strike strike NN 40404 2645 29 of of IN 40404 2645 30 the the DT 40404 2645 31 strata strata NN 40404 2645 32 and and CC 40404 2645 33 the the DT 40404 2645 34 axis axi NNS 40404 2645 35 of of IN 40404 2645 36 the the DT 40404 2645 37 folds fold NNS 40404 2645 38 . . . 40404 2646 1 The the DT 40404 2646 2 dip dip NN 40404 2646 3 of of IN 40404 2646 4 the the DT 40404 2646 5 cleavage cleavage NN 40404 2646 6 is be VBZ 40404 2646 7 generally generally RB 40404 2646 8 steep steep JJ 40404 2646 9 , , , 40404 2646 10 hence hence RB 40404 2646 11 the the DT 40404 2646 12 pressure pressure NN 40404 2646 13 was be VBD 40404 2646 14 nearly nearly RB 40404 2646 15 horizontal horizontal JJ 40404 2646 16 . . . 40404 2647 1 The the DT 40404 2647 2 pressure pressure NN 40404 2647 3 which which WDT 40404 2647 4 has have VBZ 40404 2647 5 acted act VBN 40404 2647 6 at at IN 40404 2647 7 right right JJ 40404 2647 8 angles angle NNS 40404 2647 9 to to IN 40404 2647 10 the the DT 40404 2647 11 cleavage cleavage NN 40404 2647 12 , , , 40404 2647 13 and and CC 40404 2647 14 to to TO 40404 2647 15 which which WDT 40404 2647 16 it -PRON- PRP 40404 2647 17 is be VBZ 40404 2647 18 due due JJ 40404 2647 19 , , , 40404 2647 20 is be VBZ 40404 2647 21 the the DT 40404 2647 22 same same JJ 40404 2647 23 lateral lateral JJ 40404 2647 24 pressure pressure NN 40404 2647 25 which which WDT 40404 2647 26 has have VBZ 40404 2647 27 thrown throw VBN 40404 2647 28 the the DT 40404 2647 29 strata strata NN 40404 2647 30 into into IN 40404 2647 31 folds fold NNS 40404 2647 32 . . . 40404 2648 1 [ [ -LRB- 40404 2648 2 Illustration illustration NN 40404 2648 3 : : : 40404 2648 4 Fig Fig NNP 40404 2648 5 . . . 40404 2649 1 176 176 CD 40404 2649 2 . . . 40404 2650 1 Slaty Slaty NNS 40404 2650 2 Cleavage cleavage VBP 40404 2650 3 ] ] -RRB- 40404 2650 4 We -PRON- PRP 40404 2650 5 find find VBP 40404 2650 6 additional additional JJ 40404 2650 7 proof proof NN 40404 2650 8 that that WDT 40404 2650 9 slates slate NNS 40404 2650 10 have have VBP 40404 2650 11 undergone undergo VBN 40404 2650 12 compression compression NN 40404 2650 13 at at IN 40404 2650 14 right right JJ 40404 2650 15 angles angle NNS 40404 2650 16 to to IN 40404 2650 17 their -PRON- PRP$ 40404 2650 18 cleavage cleavage NN 40404 2650 19 in in IN 40404 2650 20 the the DT 40404 2650 21 fact fact NN 40404 2650 22 that that IN 40404 2650 23 any any DT 40404 2650 24 inclusions inclusion NNS 40404 2650 25 in in IN 40404 2650 26 them -PRON- PRP 40404 2650 27 , , , 40404 2650 28 such such JJ 40404 2650 29 as as IN 40404 2650 30 nodules nodule NNS 40404 2650 31 and and CC 40404 2650 32 fossils fossil NNS 40404 2650 33 , , , 40404 2650 34 have have VBP 40404 2650 35 been be VBN 40404 2650 36 squeezed squeeze VBN 40404 2650 37 out out IN 40404 2650 38 of of IN 40404 2650 39 shape shape NN 40404 2650 40 and and CC 40404 2650 41 have have VBP 40404 2650 42 their -PRON- PRP$ 40404 2650 43 long long JJ 40404 2650 44 diameters diameter NNS 40404 2650 45 lying lie VBG 40404 2650 46 in in IN 40404 2650 47 the the DT 40404 2650 48 planes plane NNS 40404 2650 49 of of IN 40404 2650 50 cleavage cleavage NN 40404 2650 51 . . . 40404 2651 1 That that DT 40404 2651 2 pressure pressure NN 40404 2651 3 is be VBZ 40404 2651 4 competent competent JJ 40404 2651 5 to to TO 40404 2651 6 cause cause VB 40404 2651 7 cleavage cleavage NN 40404 2651 8 is be VBZ 40404 2651 9 shown show VBN 40404 2651 10 by by IN 40404 2651 11 experiment experiment NN 40404 2651 12 . . . 40404 2652 1 Homogeneous homogeneous JJ 40404 2652 2 material material NN 40404 2652 3 of of IN 40404 2652 4 fine fine JJ 40404 2652 5 grain grain NN 40404 2652 6 , , , 40404 2652 7 such such JJ 40404 2652 8 as as IN 40404 2652 9 beeswax beeswax NN 40404 2652 10 , , , 40404 2652 11 when when WRB 40404 2652 12 subjected subject VBN 40404 2652 13 to to IN 40404 2652 14 heavy heavy JJ 40404 2652 15 pressure pressure NN 40404 2652 16 cleaves cleave NNS 40404 2652 17 at at IN 40404 2652 18 right right JJ 40404 2652 19 angles angle NNS 40404 2652 20 to to IN 40404 2652 21 the the DT 40404 2652 22 direction direction NN 40404 2652 23 of of IN 40404 2652 24 the the DT 40404 2652 25 compressing compress VBG 40404 2652 26 force force NN 40404 2652 27 . . . 40404 2653 1 = = NFP 40404 2653 2 Rate rate NN 40404 2653 3 of of IN 40404 2653 4 folding.= folding.= NN 40404 2653 5 All all PDT 40404 2653 6 the the DT 40404 2653 7 facts fact NNS 40404 2653 8 known know VBN 40404 2653 9 with with IN 40404 2653 10 regard regard NN 40404 2653 11 to to IN 40404 2653 12 rock rock NN 40404 2653 13 deformation deformation NN 40404 2653 14 agree agree VBP 40404 2653 15 that that IN 40404 2653 16 it -PRON- PRP 40404 2653 17 is be VBZ 40404 2653 18 a a DT 40404 2653 19 secular secular JJ 40404 2653 20 process process NN 40404 2653 21 , , , 40404 2653 22 taking take VBG 40404 2653 23 place place NN 40404 2653 24 so so RB 40404 2653 25 slowly slowly RB 40404 2653 26 that that IN 40404 2653 27 , , , 40404 2653 28 like like IN 40404 2653 29 the the DT 40404 2653 30 deepening deepening NN 40404 2653 31 of of IN 40404 2653 32 valleys valley NNS 40404 2653 33 by by IN 40404 2653 34 erosion erosion NN 40404 2653 35 , , , 40404 2653 36 it -PRON- PRP 40404 2653 37 escapes escape VBZ 40404 2653 38 the the DT 40404 2653 39 notice notice NN 40404 2653 40 of of IN 40404 2653 41 the the DT 40404 2653 42 inhabitants inhabitant NNS 40404 2653 43 of of IN 40404 2653 44 the the DT 40404 2653 45 region region NN 40404 2653 46 . . . 40404 2654 1 It -PRON- PRP 40404 2654 2 is be VBZ 40404 2654 3 only only RB 40404 2654 4 under under IN 40404 2654 5 stresses stress NNS 40404 2654 6 slowly slowly RB 40404 2654 7 applied apply VBD 40404 2654 8 that that IN 40404 2654 9 rocks rock NNS 40404 2654 10 bend bend VBP 40404 2654 11 without without IN 40404 2654 12 breaking break VBG 40404 2654 13 . . . 40404 2655 1 The the DT 40404 2655 2 folds fold NNS 40404 2655 3 of of IN 40404 2655 4 some some DT 40404 2655 5 of of IN 40404 2655 6 the the DT 40404 2655 7 highest high JJS 40404 2655 8 mountains mountain NNS 40404 2655 9 have have VBP 40404 2655 10 risen rise VBN 40404 2655 11 so so RB 40404 2655 12 gradually gradually RB 40404 2655 13 that that IN 40404 2655 14 strong strong JJ 40404 2655 15 , , , 40404 2655 16 well well RB 40404 2655 17 - - HYPH 40404 2655 18 intrenched intrench VBN 40404 2655 19 rivers river NNS 40404 2655 20 which which WDT 40404 2655 21 had have VBD 40404 2655 22 the the DT 40404 2655 23 right right NN 40404 2655 24 of of IN 40404 2655 25 way way NN 40404 2655 26 across across IN 40404 2655 27 the the DT 40404 2655 28 region region NN 40404 2655 29 were be VBD 40404 2655 30 able able JJ 40404 2655 31 to to TO 40404 2655 32 hold hold VB 40404 2655 33 to to IN 40404 2655 34 their -PRON- PRP$ 40404 2655 35 courses course NNS 40404 2655 36 , , , 40404 2655 37 and and CC 40404 2655 38 as as IN 40404 2655 39 a a DT 40404 2655 40 circular circular JJ 40404 2655 41 saw saw NN 40404 2655 42 cuts cut VBZ 40404 2655 43 its -PRON- PRP$ 40404 2655 44 way way NN 40404 2655 45 through through IN 40404 2655 46 the the DT 40404 2655 47 log log NN 40404 2655 48 which which WDT 40404 2655 49 is be VBZ 40404 2655 50 steadily steadily RB 40404 2655 51 driven drive VBN 40404 2655 52 against against IN 40404 2655 53 it -PRON- PRP 40404 2655 54 , , , 40404 2655 55 so so IN 40404 2655 56 these these DT 40404 2655 57 rivers river NNS 40404 2655 58 sawed saw VBD 40404 2655 59 their -PRON- PRP$ 40404 2655 60 gorges gorge NNS 40404 2655 61 through through IN 40404 2655 62 the the DT 40404 2655 63 fold fold NN 40404 2655 64 as as RB 40404 2655 65 fast fast RB 40404 2655 66 as as IN 40404 2655 67 it -PRON- PRP 40404 2655 68 rose rise VBD 40404 2655 69 beneath beneath IN 40404 2655 70 them -PRON- PRP 40404 2655 71 . . . 40404 2656 1 Streams stream NNS 40404 2656 2 which which WDT 40404 2656 3 thus thus RB 40404 2656 4 maintain maintain VBP 40404 2656 5 the the DT 40404 2656 6 course course NN 40404 2656 7 which which WDT 40404 2656 8 they -PRON- PRP 40404 2656 9 had have VBD 40404 2656 10 antecedent antecedent NN 40404 2656 11 to to IN 40404 2656 12 a a DT 40404 2656 13 deformation deformation NN 40404 2656 14 of of IN 40404 2656 15 the the DT 40404 2656 16 region region NN 40404 2656 17 are be VBP 40404 2656 18 known know VBN 40404 2656 19 as as IN 40404 2656 20 _ _ NNP 40404 2656 21 antecedent antecedent NN 40404 2656 22 _ _ NNP 40404 2656 23 streams stream NNS 40404 2656 24 . . . 40404 2657 1 Examples example NNS 40404 2657 2 of of IN 40404 2657 3 such such JJ 40404 2657 4 are be VBP 40404 2657 5 the the DT 40404 2657 6 Sutlej Sutlej NNPS 40404 2657 7 and and CC 40404 2657 8 other other JJ 40404 2657 9 rivers river NNS 40404 2657 10 of of IN 40404 2657 11 India India NNP 40404 2657 12 , , , 40404 2657 13 whose whose WP$ 40404 2657 14 valleys valley NNS 40404 2657 15 trench trench VBP 40404 2657 16 the the DT 40404 2657 17 outer outer JJ 40404 2657 18 ranges range NNS 40404 2657 19 of of IN 40404 2657 20 the the DT 40404 2657 21 Himalayas Himalayas NNP 40404 2657 22 and and CC 40404 2657 23 whose whose WP$ 40404 2657 24 earlier early JJR 40404 2657 25 river river NN 40404 2657 26 deposits deposit NNS 40404 2657 27 have have VBP 40404 2657 28 been be VBN 40404 2657 29 upturned upturne VBN 40404 2657 30 by by IN 40404 2657 31 the the DT 40404 2657 32 rising rise VBG 40404 2657 33 ridges ridge NNS 40404 2657 34 . . . 40404 2658 1 On on IN 40404 2658 2 the the DT 40404 2658 3 other other JJ 40404 2658 4 hand hand NN 40404 2658 5 , , , 40404 2658 6 mountain mountain NN 40404 2658 7 crests crest NNS 40404 2658 8 are be VBP 40404 2658 9 usually usually RB 40404 2658 10 divides divide VBZ 40404 2658 11 , , , 40404 2658 12 parting part VBG 40404 2658 13 the the DT 40404 2658 14 head head NN 40404 2658 15 waters water NNS 40404 2658 16 of of IN 40404 2658 17 different different JJ 40404 2658 18 drainage drainage NN 40404 2658 19 systems system NNS 40404 2658 20 . . . 40404 2659 1 In in IN 40404 2659 2 these these DT 40404 2659 3 cases case NNS 40404 2659 4 the the DT 40404 2659 5 original original JJ 40404 2659 6 streams stream NNS 40404 2659 7 of of IN 40404 2659 8 the the DT 40404 2659 9 region region NN 40404 2659 10 have have VBP 40404 2659 11 been be VBN 40404 2659 12 broken break VBN 40404 2659 13 or or CC 40404 2659 14 destroyed destroy VBN 40404 2659 15 by by IN 40404 2659 16 the the DT 40404 2659 17 uplift uplift NN 40404 2659 18 of of IN 40404 2659 19 the the DT 40404 2659 20 mountain mountain NN 40404 2659 21 mass mass NN 40404 2659 22 across across IN 40404 2659 23 their -PRON- PRP$ 40404 2659 24 paths path NNS 40404 2659 25 . . . 40404 2660 1 On on IN 40404 2660 2 the the DT 40404 2660 3 whole whole NN 40404 2660 4 , , , 40404 2660 5 which which WDT 40404 2660 6 have have VBP 40404 2660 7 worked work VBN 40404 2660 8 more more RBR 40404 2660 9 rapidly rapidly RB 40404 2660 10 , , , 40404 2660 11 processes process NNS 40404 2660 12 of of IN 40404 2660 13 deformation deformation NN 40404 2660 14 or or CC 40404 2660 15 of of IN 40404 2660 16 denudation denudation NN 40404 2660 17 ? ? . 40404 2661 1 [ [ -LRB- 40404 2661 2 Illustration illustration NN 40404 2661 3 : : : 40404 2661 4 Fig Fig NNP 40404 2661 5 . . . 40404 2662 1 177 177 CD 40404 2662 2 . . . 40404 2663 1 An an DT 40404 2663 2 Unroofed unroofed JJ 40404 2663 3 Anticline Anticline NNP 40404 2663 4 ] ] -RRB- 40404 2663 5 Land Land NNP 40404 2663 6 Forms Forms NNPS 40404 2663 7 due due JJ 40404 2663 8 to to IN 40404 2663 9 Folding fold VBG 40404 2663 10 As as IN 40404 2663 11 folding fold VBG 40404 2663 12 goes go VBZ 40404 2663 13 on on RP 40404 2663 14 so so RB 40404 2663 15 slowly slowly RB 40404 2663 16 , , , 40404 2663 17 it -PRON- PRP 40404 2663 18 is be VBZ 40404 2663 19 never never RB 40404 2663 20 left leave VBN 40404 2663 21 to to TO 40404 2663 22 form form VB 40404 2663 23 surface surface NN 40404 2663 24 features feature NNS 40404 2663 25 unmodified unmodifie VBN 40404 2663 26 by by IN 40404 2663 27 the the DT 40404 2663 28 action action NN 40404 2663 29 of of IN 40404 2663 30 other other JJ 40404 2663 31 agencies agency NNS 40404 2663 32 . . . 40404 2664 1 An an DT 40404 2664 2 anticlinal anticlinal JJ 40404 2664 3 fold fold NN 40404 2664 4 is be VBZ 40404 2664 5 attacked attack VBN 40404 2664 6 by by IN 40404 2664 7 erosion erosion NN 40404 2664 8 as as RB 40404 2664 9 soon soon RB 40404 2664 10 as as IN 40404 2664 11 it -PRON- PRP 40404 2664 12 begins begin VBZ 40404 2664 13 to to TO 40404 2664 14 rise rise VB 40404 2664 15 above above IN 40404 2664 16 the the DT 40404 2664 17 original original JJ 40404 2664 18 level level NN 40404 2664 19 , , , 40404 2664 20 and and CC 40404 2664 21 the the DT 40404 2664 22 higher high JJR 40404 2664 23 it -PRON- PRP 40404 2664 24 is be VBZ 40404 2664 25 uplifted uplifted JJ 40404 2664 26 , , , 40404 2664 27 and and CC 40404 2664 28 the the DT 40404 2664 29 stronger strong JJR 40404 2664 30 are be VBP 40404 2664 31 its -PRON- PRP$ 40404 2664 32 slopes slope NNS 40404 2664 33 , , , 40404 2664 34 the the DT 40404 2664 35 faster fast RBR 40404 2664 36 is be VBZ 40404 2664 37 it -PRON- PRP 40404 2664 38 worn wear VBN 40404 2664 39 away away RP 40404 2664 40 . . . 40404 2665 1 Even even RB 40404 2665 2 while while IN 40404 2665 3 rising rise VBG 40404 2665 4 , , , 40404 2665 5 a a DT 40404 2665 6 young young JJ 40404 2665 7 upfold upfold NN 40404 2665 8 is be VBZ 40404 2665 9 often often RB 40404 2665 10 thus thus RB 40404 2665 11 unroofed unroofed JJ 40404 2665 12 , , , 40404 2665 13 and and CC 40404 2665 14 instead instead RB 40404 2665 15 of of IN 40404 2665 16 appearing appear VBG 40404 2665 17 as as IN 40404 2665 18 a a DT 40404 2665 19 long long JJ 40404 2665 20 , , , 40404 2665 21 Smooth smooth JJ 40404 2665 22 , , , 40404 2665 23 boat boat NN 40404 2665 24 - - HYPH 40404 2665 25 shaped shaped JJ 40404 2665 26 ridge ridge NN 40404 2665 27 , , , 40404 2665 28 it -PRON- PRP 40404 2665 29 commonly commonly RB 40404 2665 30 has have VBZ 40404 2665 31 had have VBN 40404 2665 32 opened open VBN 40404 2665 33 along along IN 40404 2665 34 the the DT 40404 2665 35 rocks rock NNS 40404 2665 36 of of IN 40404 2665 37 the the DT 40404 2665 38 axis axi NNS 40404 2665 39 , , , 40404 2665 40 when when WRB 40404 2665 41 these these DT 40404 2665 42 are be VBP 40404 2665 43 weak weak JJ 40404 2665 44 , , , 40404 2665 45 a a DT 40404 2665 46 valley valley NN 40404 2665 47 which which WDT 40404 2665 48 is be VBZ 40404 2665 49 overlooked overlook VBN 40404 2665 50 by by IN 40404 2665 51 the the DT 40404 2665 52 infacing inface VBG 40404 2665 53 escarpments escarpment NNS 40404 2665 54 of of IN 40404 2665 55 the the DT 40404 2665 56 hard hard JJ 40404 2665 57 layers layer NNS 40404 2665 58 of of IN 40404 2665 59 the the DT 40404 2665 60 sides side NNS 40404 2665 61 of of IN 40404 2665 62 the the DT 40404 2665 63 fold fold NN 40404 2665 64 ( ( -LRB- 40404 2665 65 Fig fig NN 40404 2665 66 . . . 40404 2666 1 177 177 CD 40404 2666 2 ) ) -RRB- 40404 2666 3 . . . 40404 2667 1 Under under IN 40404 2667 2 long long RB 40404 2667 3 - - HYPH 40404 2667 4 continued continue VBN 40404 2667 5 erosion erosion NN 40404 2667 6 , , , 40404 2667 7 anticlines anticline NNS 40404 2667 8 may may MD 40404 2667 9 be be VB 40404 2667 10 degraded degrade VBN 40404 2667 11 to to IN 40404 2667 12 valleys valley NNS 40404 2667 13 , , , 40404 2667 14 while while IN 40404 2667 15 the the DT 40404 2667 16 synclines syncline NNS 40404 2667 17 of of IN 40404 2667 18 the the DT 40404 2667 19 same same JJ 40404 2667 20 system system NN 40404 2667 21 may may MD 40404 2667 22 be be VB 40404 2667 23 left leave VBN 40404 2667 24 in in IN 40404 2667 25 relief relief NN 40404 2667 26 as as IN 40404 2667 27 ridges ridge NNS 40404 2667 28 ( ( -LRB- 40404 2667 29 Fig fig NN 40404 2667 30 . . . 40404 2668 1 167 167 CD 40404 2668 2 ) ) -RRB- 40404 2668 3 . . . 40404 2669 1 = = NFP 40404 2669 2 Folded fold VBD 40404 2669 3 mountains.= mountains.= CD 40404 2669 4 The the DT 40404 2669 5 vastness vastness NN 40404 2669 6 of of IN 40404 2669 7 the the DT 40404 2669 8 forces force NNS 40404 2669 9 which which WDT 40404 2669 10 wrinkle wrinkle VBP 40404 2669 11 the the DT 40404 2669 12 crust crust NN 40404 2669 13 is be VBZ 40404 2669 14 best well RBS 40404 2669 15 realized realize VBN 40404 2669 16 in in IN 40404 2669 17 the the DT 40404 2669 18 presence presence NN 40404 2669 19 of of IN 40404 2669 20 some some DT 40404 2669 21 lofty lofty JJ 40404 2669 22 mountain mountain NN 40404 2669 23 range range NN 40404 2669 24 . . . 40404 2670 1 All all DT 40404 2670 2 mountains mountain NNS 40404 2670 3 , , , 40404 2670 4 indeed indeed RB 40404 2670 5 , , , 40404 2670 6 are be VBP 40404 2670 7 not not RB 40404 2670 8 the the DT 40404 2670 9 result result NN 40404 2670 10 of of IN 40404 2670 11 folding folding NN 40404 2670 12 . . . 40404 2671 1 Some some DT 40404 2671 2 , , , 40404 2671 3 as as IN 40404 2671 4 we -PRON- PRP 40404 2671 5 shall shall MD 40404 2671 6 see see VB 40404 2671 7 , , , 40404 2671 8 are be VBP 40404 2671 9 due due JJ 40404 2671 10 to to IN 40404 2671 11 upwarps upwarps NNP 40404 2671 12 or or CC 40404 2671 13 to to IN 40404 2671 14 fractures fracture NNS 40404 2671 15 of of IN 40404 2671 16 the the DT 40404 2671 17 crust crust NN 40404 2671 18 ; ; : 40404 2671 19 some some DT 40404 2671 20 are be VBP 40404 2671 21 piles pile NNS 40404 2671 22 of of IN 40404 2671 23 volcanic volcanic JJ 40404 2671 24 material material NN 40404 2671 25 ; ; : 40404 2671 26 some some DT 40404 2671 27 are be VBP 40404 2671 28 swellings swelling NNS 40404 2671 29 caused cause VBN 40404 2671 30 by by IN 40404 2671 31 the the DT 40404 2671 32 intrusion intrusion NN 40404 2671 33 of of IN 40404 2671 34 molten molten JJ 40404 2671 35 matter matter NN 40404 2671 36 beneath beneath IN 40404 2671 37 the the DT 40404 2671 38 surface surface NN 40404 2671 39 ; ; : 40404 2671 40 some some DT 40404 2671 41 are be VBP 40404 2671 42 the the DT 40404 2671 43 relicts relict NNS 40404 2671 44 left leave VBN 40404 2671 45 after after IN 40404 2671 46 the the DT 40404 2671 47 long long JJ 40404 2671 48 denudation denudation NN 40404 2671 49 of of IN 40404 2671 50 high high JJ 40404 2671 51 plateaus plateaus NN 40404 2671 52 . . . 40404 2672 1 [ [ -LRB- 40404 2672 2 Illustration illustration NN 40404 2672 3 : : : 40404 2672 4 Fig Fig NNP 40404 2672 5 . . . 40404 2673 1 178 178 CD 40404 2673 2 . . . 40404 2674 1 Mountain Mountain NNP 40404 2674 2 Peaks Peaks NNP 40404 2674 3 carved carve VBD 40404 2674 4 in in IN 40404 2674 5 Folded Folded NNP 40404 2674 6 Strata Strata NNP 40404 2674 7 , , , 40404 2674 8 Rocky Rocky NNP 40404 2674 9 Mountains Mountains NNPS 40404 2674 10 , , , 40404 2674 11 Montana Montana NNP 40404 2674 12 ] ] -RRB- 40404 2674 13 But but CC 40404 2674 14 most most JJS 40404 2674 15 of of IN 40404 2674 16 the the DT 40404 2674 17 mountain mountain NN 40404 2674 18 ranges range NNS 40404 2674 19 of of IN 40404 2674 20 the the DT 40404 2674 21 earth earth NN 40404 2674 22 , , , 40404 2674 23 and and CC 40404 2674 24 some some DT 40404 2674 25 of of IN 40404 2674 26 the the DT 40404 2674 27 greatest great JJS 40404 2674 28 , , , 40404 2674 29 such such JJ 40404 2674 30 as as IN 40404 2674 31 the the DT 40404 2674 32 Alps Alps NNP 40404 2674 33 and and CC 40404 2674 34 the the DT 40404 2674 35 Himalayas Himalayas NNP 40404 2674 36 , , , 40404 2674 37 were be VBD 40404 2674 38 originally originally RB 40404 2674 39 mountains mountain NNS 40404 2674 40 of of IN 40404 2674 41 folding fold VBG 40404 2674 42 . . . 40404 2675 1 The the DT 40404 2675 2 earth earth NN 40404 2675 3 's 's POS 40404 2675 4 crust crust NN 40404 2675 5 has have VBZ 40404 2675 6 wrinkled wrinkle VBN 40404 2675 7 into into IN 40404 2675 8 a a DT 40404 2675 9 fold fold NN 40404 2675 10 ; ; : 40404 2675 11 or or CC 40404 2675 12 into into IN 40404 2675 13 a a DT 40404 2675 14 series series NN 40404 2675 15 of of IN 40404 2675 16 folds fold NNS 40404 2675 17 , , , 40404 2675 18 forming form VBG 40404 2675 19 a a DT 40404 2675 20 series series NN 40404 2675 21 of of IN 40404 2675 22 parallel parallel JJ 40404 2675 23 ridges ridge NNS 40404 2675 24 and and CC 40404 2675 25 intervening intervening NN 40404 2675 26 valleys valley NNS 40404 2675 27 ; ; , 40404 2675 28 or or CC 40404 2675 29 a a DT 40404 2675 30 number number NN 40404 2675 31 of of IN 40404 2675 32 folds fold NNS 40404 2675 33 have have VBP 40404 2675 34 been be VBN 40404 2675 35 mashed mash VBN 40404 2675 36 together together RB 40404 2675 37 into into IN 40404 2675 38 a a DT 40404 2675 39 vast vast JJ 40404 2675 40 upswelling upswelling NN 40404 2675 41 of of IN 40404 2675 42 the the DT 40404 2675 43 crust crust NN 40404 2675 44 , , , 40404 2675 45 in in IN 40404 2675 46 which which WDT 40404 2675 47 the the DT 40404 2675 48 layers layer NNS 40404 2675 49 have have VBP 40404 2675 50 been be VBN 40404 2675 51 so so RB 40404 2675 52 crumpled crumple VBN 40404 2675 53 and and CC 40404 2675 54 twisted twisted JJ 40404 2675 55 , , , 40404 2675 56 overturned overturn VBN 40404 2675 57 and and CC 40404 2675 58 crushed crush VBN 40404 2675 59 , , , 40404 2675 60 that that IN 40404 2675 61 it -PRON- PRP 40404 2675 62 is be VBZ 40404 2675 63 exceedingly exceedingly RB 40404 2675 64 difficult difficult JJ 40404 2675 65 to to TO 40404 2675 66 make make VB 40404 2675 67 out out RP 40404 2675 68 the the DT 40404 2675 69 original original JJ 40404 2675 70 structure structure NN 40404 2675 71 . . . 40404 2676 1 The the DT 40404 2676 2 close close JJ 40404 2676 3 and and CC 40404 2676 4 intricate intricate JJ 40404 2676 5 folds fold NNS 40404 2676 6 seen see VBN 40404 2676 7 in in IN 40404 2676 8 great great JJ 40404 2676 9 mountain mountain NN 40404 2676 10 ranges range NNS 40404 2676 11 were be VBD 40404 2676 12 formed form VBN 40404 2676 13 , , , 40404 2676 14 as as IN 40404 2676 15 we -PRON- PRP 40404 2676 16 have have VBP 40404 2676 17 seen see VBN 40404 2676 18 , , , 40404 2676 19 deep deep RB 40404 2676 20 below below IN 40404 2676 21 the the DT 40404 2676 22 surface surface NN 40404 2676 23 , , , 40404 2676 24 within within IN 40404 2676 25 the the DT 40404 2676 26 zone zone NN 40404 2676 27 of of IN 40404 2676 28 folding fold VBG 40404 2676 29 . . . 40404 2677 1 Hence hence RB 40404 2677 2 they -PRON- PRP 40404 2677 3 may may MD 40404 2677 4 never never RB 40404 2677 5 have have VB 40404 2677 6 found find VBN 40404 2677 7 expression expression NN 40404 2677 8 in in IN 40404 2677 9 any any DT 40404 2677 10 individual individual JJ 40404 2677 11 surface surface NN 40404 2677 12 features feature NNS 40404 2677 13 . . . 40404 2678 1 As as IN 40404 2678 2 the the DT 40404 2678 3 result result NN 40404 2678 4 of of IN 40404 2678 5 these these DT 40404 2678 6 deformations deformation NNS 40404 2678 7 deep deep RB 40404 2678 8 under under IN 40404 2678 9 ground ground NN 40404 2678 10 the the DT 40404 2678 11 surface surface NN 40404 2678 12 was be VBD 40404 2678 13 broadly broadly RB 40404 2678 14 lifted lift VBN 40404 2678 15 to to IN 40404 2678 16 mountain mountain NN 40404 2678 17 height height NN 40404 2678 18 , , , 40404 2678 19 and and CC 40404 2678 20 the the DT 40404 2678 21 crumpled crumpled JJ 40404 2678 22 and and CC 40404 2678 23 twisted twisted JJ 40404 2678 24 mountain mountain NN 40404 2678 25 structures structure NNS 40404 2678 26 are be VBP 40404 2678 27 now now RB 40404 2678 28 to to TO 40404 2678 29 be be VB 40404 2678 30 seen see VBN 40404 2678 31 only only RB 40404 2678 32 because because IN 40404 2678 33 erosion erosion NN 40404 2678 34 has have VBZ 40404 2678 35 swept sweep VBN 40404 2678 36 away away RB 40404 2678 37 the the DT 40404 2678 38 heavy heavy JJ 40404 2678 39 cover cover NN 40404 2678 40 of of IN 40404 2678 41 surface surface NN 40404 2678 42 rocks rock NNS 40404 2678 43 under under IN 40404 2678 44 whose whose WP$ 40404 2678 45 load load NN 40404 2678 46 they -PRON- PRP 40404 2678 47 were be VBD 40404 2678 48 developed develop VBN 40404 2678 49 . . . 40404 2679 1 [ [ -LRB- 40404 2679 2 Illustration illustration NN 40404 2679 3 : : : 40404 2679 4 Fig Fig NNP 40404 2679 5 . . . 40404 2680 1 179 179 CD 40404 2680 2 . . . 40404 2681 1 Section section NN 40404 2681 2 of of IN 40404 2681 3 a a DT 40404 2681 4 Portion portion NN 40404 2681 5 of of IN 40404 2681 6 the the DT 40404 2681 7 Alps Alps NNPS 40404 2681 8 ] ] -RRB- 40404 2681 9 When when WRB 40404 2681 10 the the DT 40404 2681 11 structure structure NN 40404 2681 12 of of IN 40404 2681 13 mountains mountain NNS 40404 2681 14 has have VBZ 40404 2681 15 been be VBN 40404 2681 16 deciphered decipher VBN 40404 2681 17 it -PRON- PRP 40404 2681 18 is be VBZ 40404 2681 19 possible possible JJ 40404 2681 20 to to TO 40404 2681 21 estimate estimate VB 40404 2681 22 roughly roughly RB 40404 2681 23 the the DT 40404 2681 24 amount amount NN 40404 2681 25 of of IN 40404 2681 26 horizontal horizontal JJ 40404 2681 27 compression compression NN 40404 2681 28 which which WDT 40404 2681 29 the the DT 40404 2681 30 region region NN 40404 2681 31 has have VBZ 40404 2681 32 suffered suffer VBN 40404 2681 33 . . . 40404 2682 1 If if IN 40404 2682 2 the the DT 40404 2682 3 strata strata NN 40404 2682 4 of of IN 40404 2682 5 the the DT 40404 2682 6 folds fold NNS 40404 2682 7 of of IN 40404 2682 8 the the DT 40404 2682 9 Alps Alps NNPS 40404 2682 10 were be VBD 40404 2682 11 smoothed smooth VBN 40404 2682 12 out out RP 40404 2682 13 , , , 40404 2682 14 they -PRON- PRP 40404 2682 15 would would MD 40404 2682 16 occupy occupy VB 40404 2682 17 a a DT 40404 2682 18 belt belt NN 40404 2682 19 seventy seventy CD 40404 2682 20 - - HYPH 40404 2682 21 four four CD 40404 2682 22 miles mile NNS 40404 2682 23 wider wide JJR 40404 2682 24 than than IN 40404 2682 25 that that DT 40404 2682 26 to to TO 40404 2682 27 which which WDT 40404 2682 28 they -PRON- PRP 40404 2682 29 have have VBP 40404 2682 30 been be VBN 40404 2682 31 compressed compress VBN 40404 2682 32 , , , 40404 2682 33 or or CC 40404 2682 34 twice twice PDT 40404 2682 35 their -PRON- PRP$ 40404 2682 36 present present JJ 40404 2682 37 width width NN 40404 2682 38 . . . 40404 2683 1 A a DT 40404 2683 2 section section NN 40404 2683 3 across across IN 40404 2683 4 the the DT 40404 2683 5 Appalachian appalachian JJ 40404 2683 6 folds fold NNS 40404 2683 7 in in IN 40404 2683 8 Pennsylvania Pennsylvania NNP 40404 2683 9 shows show VBZ 40404 2683 10 a a DT 40404 2683 11 compression compression NN 40404 2683 12 to to IN 40404 2683 13 about about RB 40404 2683 14 two two CD 40404 2683 15 thirds third NNS 40404 2683 16 the the DT 40404 2683 17 original original JJ 40404 2683 18 width width NN 40404 2683 19 ; ; , 40404 2683 20 the the DT 40404 2683 21 belt belt NN 40404 2683 22 has have VBZ 40404 2683 23 been be VBN 40404 2683 24 shortened shorten VBN 40404 2683 25 thirty thirty CD 40404 2683 26 - - HYPH 40404 2683 27 five five CD 40404 2683 28 miles mile NNS 40404 2683 29 in in IN 40404 2683 30 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2688 3 therefore therefore RB 40404 2688 4 classify classify VB 40404 2688 5 mountains mountain NNS 40404 2688 6 according accord VBG 40404 2688 7 to to IN 40404 2688 8 the the DT 40404 2688 9 degree degree NN 40404 2688 10 to to TO 40404 2688 11 which which WDT 40404 2688 12 they -PRON- PRP 40404 2688 13 have have VBP 40404 2688 14 been be VBN 40404 2688 15 dissected dissect VBN 40404 2688 16 . . . 40404 2689 1 The the DT 40404 2689 2 Juras Juras NNP 40404 2689 3 are be VBP 40404 2689 4 an an DT 40404 2689 5 example example NN 40404 2689 6 of of IN 40404 2689 7 the the DT 40404 2689 8 stage stage NN 40404 2689 9 of of IN 40404 2689 10 early early JJ 40404 2689 11 youth youth NN 40404 2689 12 , , , 40404 2689 13 in in IN 40404 2689 14 which which WDT 40404 2689 15 the the DT 40404 2689 16 anticlines anticline NNS 40404 2689 17 still still RB 40404 2689 18 persist persist VBP 40404 2689 19 as as IN 40404 2689 20 ridges ridge NNS 40404 2689 21 and and CC 40404 2689 22 the the DT 40404 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2693 1 Section section NN 40404 2693 2 of of IN 40404 2693 3 a a DT 40404 2693 4 Portion Portion NNP 40404 2693 5 of of IN 40404 2693 6 the the DT 40404 2693 7 Jura Jura NNP 40404 2693 8 Mountains Mountains NNPS 40404 2693 9 ] ] -RRB- 40404 2693 10 The the DT 40404 2693 11 Alps Alps NNPS 40404 2693 12 were be VBD 40404 2693 13 upheaved upheaved JJ 40404 2693 14 at at IN 40404 2693 15 various various JJ 40404 2693 16 times time NNS 40404 2693 17 ( ( -LRB- 40404 2693 18 Fig fig NN 40404 2693 19 . . . 40404 2694 1 399 399 CD 40404 2694 2 ) ) -RRB- 40404 2694 3 , , , 40404 2694 4 the the DT 40404 2694 5 last last JJ 40404 2694 6 uplift uplift NN 40404 2694 7 being be VBG 40404 2694 8 later late JJR 40404 2694 9 than than IN 40404 2694 10 the the DT 40404 2694 11 uplift uplift NN 40404 2694 12 of of IN 40404 2694 13 the the DT 40404 2694 14 Juras Juras NNP 40404 2694 15 , , , 40404 2694 16 but but CC 40404 2694 17 to to IN 40404 2694 18 so so RB 40404 2694 19 much much RB 40404 2694 20 greater great JJR 40404 2694 21 height height NN 40404 2694 22 that that IN 40404 2694 23 erosion erosion NN 40404 2694 24 has have VBZ 40404 2694 25 already already RB 40404 2694 26 advanced advance VBN 40404 2694 27 them -PRON- PRP 40404 2694 28 well well RB 40404 2694 29 on on RB 40404 2694 30 towards towards IN 40404 2694 31 maturity maturity NN 40404 2694 32 . . . 40404 2695 1 The the DT 40404 2695 2 mountain mountain NN 40404 2695 3 mass mass NN 40404 2695 4 has have VBZ 40404 2695 5 been be VBN 40404 2695 6 cut cut VBN 40404 2695 7 to to IN 40404 2695 8 the the DT 40404 2695 9 core core NN 40404 2695 10 , , , 40404 2695 11 revealing reveal VBG 40404 2695 12 strange strange JJ 40404 2695 13 contortions contortion NNS 40404 2695 14 of of IN 40404 2695 15 strata stratum NNS 40404 2695 16 which which WDT 40404 2695 17 could could MD 40404 2695 18 never never RB 40404 2695 19 have have VB 40404 2695 20 found find VBN 40404 2695 21 expression expression NN 40404 2695 22 at at IN 40404 2695 23 the the DT 40404 2695 24 surface surface NN 40404 2695 25 . . . 40404 2696 1 Sharp sharp JJ 40404 2696 2 peaks peak NNS 40404 2696 3 , , , 40404 2696 4 knife knife NN 40404 2696 5 - - HYPH 40404 2696 6 edged edge VBN 40404 2696 7 crests crest NNS 40404 2696 8 , , , 40404 2696 9 deep deep JJ 40404 2696 10 valleys valley NNS 40404 2696 11 with with IN 40404 2696 12 ungraded ungraded JJ 40404 2696 13 slopes slope NNS 40404 2696 14 subject subject JJ 40404 2696 15 to to IN 40404 2696 16 frequent frequent JJ 40404 2696 17 landslides landslide NNS 40404 2696 18 , , , 40404 2696 19 are be VBP 40404 2696 20 all all DT 40404 2696 21 features feature NNS 40404 2696 22 of of IN 40404 2696 23 Alpine Alpine NNP 40404 2696 24 scenery scenery NN 40404 2696 25 typical typical JJ 40404 2696 26 of of IN 40404 2696 27 a a DT 40404 2696 28 mountain mountain NN 40404 2696 29 range range NN 40404 2696 30 at at IN 40404 2696 31 this this DT 40404 2696 32 stage stage NN 40404 2696 33 in in IN 40404 2696 34 its -PRON- PRP$ 40404 2696 35 life life NN 40404 2696 36 history history NN 40404 2696 37 . . . 40404 2697 1 They -PRON- PRP 40404 2697 2 represent represent VBP 40404 2697 3 the the DT 40404 2697 4 survival survival NN 40404 2697 5 of of IN 40404 2697 6 the the DT 40404 2697 7 hardest hard JJS 40404 2697 8 rocks rock NNS 40404 2697 9 and and CC 40404 2697 10 the the DT 40404 2697 11 strongest strong JJS 40404 2697 12 structures structure NNS 40404 2697 13 , , , 40404 2697 14 and and CC 40404 2697 15 the the DT 40404 2697 16 destruction destruction NN 40404 2697 17 of of IN 40404 2697 18 the the DT 40404 2697 19 weaker weak JJR 40404 2697 20 in in IN 40404 2697 21 their -PRON- PRP$ 40404 2697 22 long long JJ 40404 2697 23 struggle struggle NN 40404 2697 24 for for IN 40404 2697 25 existence existence NN 40404 2697 26 against against IN 40404 2697 27 the the DT 40404 2697 28 agents agent NNS 40404 2697 29 of of IN 40404 2697 30 erosion erosion NN 40404 2697 31 . . . 40404 2698 1 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easily RB 40404 2699 7 have have VB 40404 2699 8 been be VBN 40404 2699 9 accomplished accomplish VBN 40404 2699 10 while while IN 40404 2699 11 their -PRON- PRP$ 40404 2699 12 slow slow JJ 40404 2699 13 upheaval upheaval NN 40404 2699 14 was be VBD 40404 2699 15 going go VBG 40404 2699 16 on on RP 40404 2699 17 ; ; : 40404 2699 18 in in IN 40404 2699 19 several several JJ 40404 2699 20 mountain mountain NN 40404 2699 21 ranges range NNS 40404 2699 22 we -PRON- PRP 40404 2699 23 have have VBP 40404 2699 24 evidence evidence NN 40404 2699 25 that that IN 40404 2699 26 elevation elevation NN 40404 2699 27 has have VBZ 40404 2699 28 not not RB 40404 2699 29 yet yet RB 40404 2699 30 ceased cease VBN 40404 2699 31 . . . 40404 2700 1 [ [ -LRB- 40404 2700 2 Illustration illustration NN 40404 2700 3 : : : 40404 2700 4 Fig Fig NNP 40404 2700 5 . . . 40404 2701 1 181 181 CD 40404 2701 2 . . . 40404 2702 1 Young young JJ 40404 2702 2 Mountains Mountains NNPS 40404 2702 3 , , , 40404 2702 4 Rocky Rocky NNP 40404 2702 5 Mountains Mountains NNPS 40404 2702 6 of of IN 40404 2702 7 Canada Canada NNP 40404 2702 8 ] ] -RRB- 40404 2702 9 Under under IN 40404 2702 10 long long JJ 40404 2702 11 denudation denudation NN 40404 2702 12 mountains mountain NNS 40404 2702 13 are be VBP 40404 2702 14 subdued subdue VBN 40404 2702 15 to to IN 40404 2702 16 the the DT 40404 2702 17 forms form NNS 40404 2702 18 characteristic characteristic JJ 40404 2702 19 of of IN 40404 2702 20 old old JJ 40404 2702 21 age age NN 40404 2702 22 . . . 40404 2703 1 The the DT 40404 2703 2 lofty lofty JJ 40404 2703 3 peaks peak NNS 40404 2703 4 and and CC 40404 2703 5 jagged jag VBD 40404 2703 6 crests crest NNS 40404 2703 7 of of IN 40404 2703 8 their -PRON- PRP$ 40404 2703 9 earlier early JJR 40404 2703 10 life life NN 40404 2703 11 are be VBP 40404 2703 12 smoothed smooth VBN 40404 2703 13 down down RP 40404 2703 14 to to IN 40404 2703 15 low low JJ 40404 2703 16 domes dome NNS 40404 2703 17 and and CC 40404 2703 18 rounded rounded JJ 40404 2703 19 crests crest NNS 40404 2703 20 . . . 40404 2704 1 The the DT 40404 2704 2 southern southern JJ 40404 2704 3 Appalachians appalachian NNS 40404 2704 4 and and CC 40404 2704 5 portions portion NNS 40404 2704 6 of of IN 40404 2704 7 the the DT 40404 2704 8 Hartz Hartz NNP 40404 2704 9 Mountains Mountains NNPS 40404 2704 10 in in IN 40404 2704 11 Germany Germany NNP 40404 2704 12 ( ( -LRB- 40404 2704 13 Fig fig NN 40404 2704 14 . . . 40404 2705 1 182 182 CD 40404 2705 2 ) ) -RRB- 40404 2705 3 are be VBP 40404 2705 4 examples example NNS 40404 2705 5 of of IN 40404 2705 6 mountains mountain NNS 40404 2705 7 which which WDT 40404 2705 8 have have VBP 40404 2705 9 reached reach VBN 40404 2705 10 this this DT 40404 2705 11 stage stage NN 40404 2705 12 . . . 40404 2706 1 [ [ -LRB- 40404 2706 2 Illustration illustration NN 40404 2706 3 : : : 40404 2706 4 Fig Fig NNP 40404 2706 5 . . . 40404 2707 1 182 182 CD 40404 2707 2 . . . 40404 2708 1 Subdued Subdued NNP 40404 2708 2 Mountains Mountains NNPS 40404 2708 3 , , , 40404 2708 4 the the DT 40404 2708 5 Hartz Hartz NNP 40404 2708 6 Mountains Mountains NNPS 40404 2708 7 , , , 40404 2708 8 Germany Germany NNP 40404 2708 9 ] ] -RRB- 40404 2708 10 There there EX 40404 2708 11 are be VBP 40404 2708 12 numerous numerous JJ 40404 2708 13 regions region NNS 40404 2708 14 of of IN 40404 2708 15 upland upland NN 40404 2708 16 and and CC 40404 2708 17 plains plain VBZ 40404 2708 18 in in IN 40404 2708 19 which which WDT 40404 2708 20 the the DT 40404 2708 21 rocks rock NNS 40404 2708 22 are be VBP 40404 2708 23 found find VBN 40404 2708 24 to to TO 40404 2708 25 have have VB 40404 2708 26 the the DT 40404 2708 27 same same JJ 40404 2708 28 structure structure NN 40404 2708 29 that that WDT 40404 2708 30 we -PRON- PRP 40404 2708 31 have have VBP 40404 2708 32 seen see VBN 40404 2708 33 in in IN 40404 2708 34 folded fold VBN 40404 2708 35 mountains mountain NNS 40404 2708 36 ; ; : 40404 2708 37 they -PRON- PRP 40404 2708 38 are be VBP 40404 2708 39 tilted tilt VBN 40404 2708 40 , , , 40404 2708 41 crumpled crumple VBN 40404 2708 42 , , , 40404 2708 43 and and CC 40404 2708 44 overturned overturn VBD 40404 2708 45 , , , 40404 2708 46 and and CC 40404 2708 47 have have VBP 40404 2708 48 clearly clearly RB 40404 2708 49 suffered suffer VBN 40404 2708 50 intense intense JJ 40404 2708 51 compression compression NN 40404 2708 52 . . . 40404 2709 1 We -PRON- PRP 40404 2709 2 may may MD 40404 2709 3 infer infer VB 40404 2709 4 that that IN 40404 2709 5 their -PRON- PRP$ 40404 2709 6 folds fold NNS 40404 2709 7 were be VBD 40404 2709 8 once once RB 40404 2709 9 lifted lift VBN 40404 2709 10 to to IN 40404 2709 11 the the DT 40404 2709 12 height height NN 40404 2709 13 of of IN 40404 2709 14 mountains mountain NNS 40404 2709 15 and and CC 40404 2709 16 have have VBP 40404 2709 17 since since IN 40404 2709 18 been be VBN 40404 2709 19 wasted waste VBN 40404 2709 20 to to IN 40404 2709 21 low low RB 40404 2709 22 - - HYPH 40404 2709 23 lying lie VBG 40404 2709 24 lands land NNS 40404 2709 25 . . . 40404 2710 1 Such such PDT 40404 2710 2 a a DT 40404 2710 3 section section NN 40404 2710 4 as as IN 40404 2710 5 that that DT 40404 2710 6 of of IN 40404 2710 7 Figure Figure NNP 40404 2710 8 67 67 CD 40404 2710 9 illustrates illustrate VBZ 40404 2710 10 how how WRB 40404 2710 11 ancient ancient JJ 40404 2710 12 mountains mountain NNS 40404 2710 13 may may MD 40404 2710 14 be be VB 40404 2710 15 leveled level VBN 40404 2710 16 to to IN 40404 2710 17 their -PRON- PRP$ 40404 2710 18 roots root NNS 40404 2710 19 , , , 40404 2710 20 and and CC 40404 2710 21 represents represent VBZ 40404 2710 22 the the DT 40404 2710 23 final final JJ 40404 2710 24 stage stage NN 40404 2710 25 to to TO 40404 2710 26 which which WDT 40404 2710 27 even even RB 40404 2710 28 the the DT 40404 2710 29 Alps Alps NNPS 40404 2710 30 and and CC 40404 2710 31 the the DT 40404 2710 32 Himalayas Himalayas NNP 40404 2710 33 must must MD 40404 2710 34 sometime sometime RB 40404 2710 35 arrive arrive VB 40404 2710 36 . . . 40404 2711 1 Mountains mountain NNS 40404 2711 2 , , , 40404 2711 3 perhaps perhaps RB 40404 2711 4 of of IN 40404 2711 5 Alpine Alpine NNP 40404 2711 6 height height NN 40404 2711 7 , , , 40404 2711 8 once once RB 40404 2711 9 stood stand VBD 40404 2711 10 about about IN 40404 2711 11 Lake Lake NNP 40404 2711 12 Superior Superior NNP 40404 2711 13 ; ; : 40404 2711 14 a a DT 40404 2711 15 lofty lofty JJ 40404 2711 16 range range NN 40404 2711 17 once once RB 40404 2711 18 extended extend VBN 40404 2711 19 from from IN 40404 2711 20 New New NNP 40404 2711 21 England England NNP 40404 2711 22 and and CC 40404 2711 23 New New NNP 40404 2711 24 Jersey Jersey NNP 40404 2711 25 southwestward southwestward NN 40404 2711 26 to to IN 40404 2711 27 Georgia Georgia NNP 40404 2711 28 along along IN 40404 2711 29 the the DT 40404 2711 30 Piedmont Piedmont NNP 40404 2711 31 belt belt NN 40404 2711 32 . . . 40404 2712 1 In in IN 40404 2712 2 our -PRON- PRP$ 40404 2712 3 study study NN 40404 2712 4 of of IN 40404 2712 5 historic historic JJ 40404 2712 6 geology geology NN 40404 2712 7 we -PRON- PRP 40404 2712 8 shall shall MD 40404 2712 9 see see VB 40404 2712 10 more more RBR 40404 2712 11 clearly clearly RB 40404 2712 12 how how WRB 40404 2712 13 short short JJ 40404 2712 14 is be VBZ 40404 2712 15 the the DT 40404 2712 16 life life NN 40404 2712 17 of of IN 40404 2712 18 mountains mountain NNS 40404 2712 19 as as IN 40404 2712 20 the the DT 40404 2712 21 earth earth NN 40404 2712 22 counts count VBZ 40404 2712 23 time time NN 40404 2712 24 , , , 40404 2712 25 and and CC 40404 2712 26 how how WRB 40404 2712 27 great great JJ 40404 2712 28 ranges range NNS 40404 2712 29 have have VBP 40404 2712 30 been be VBN 40404 2712 31 lifted lift VBN 40404 2712 32 , , , 40404 2712 33 worn wear VBN 40404 2712 34 away away RP 40404 2712 35 , , , 40404 2712 36 and and CC 40404 2712 37 again again RB 40404 2712 38 upheaved upheave VBD 40404 2712 39 into into IN 40404 2712 40 a a DT 40404 2712 41 new new JJ 40404 2712 42 cycle cycle NN 40404 2712 43 of of IN 40404 2712 44 erosion erosion NN 40404 2712 45 . . . 40404 2713 1 = = NFP 40404 2713 2 The the DT 40404 2713 3 sedimentary sedimentary JJ 40404 2713 4 history history NN 40404 2713 5 of of IN 40404 2713 6 folded fold VBN 40404 2713 7 mountains.= mountains.= CD 40404 2713 8 We -PRON- PRP 40404 2713 9 may may MD 40404 2713 10 mention mention VB 40404 2713 11 here here RB 40404 2713 12 some some DT 40404 2713 13 of of IN 40404 2713 14 the the DT 40404 2713 15 conditions condition NNS 40404 2713 16 which which WDT 40404 2713 17 have have VBP 40404 2713 18 commonly commonly RB 40404 2713 19 been be VBN 40404 2713 20 antecedent antecedent NN 40404 2713 21 to to IN 40404 2713 22 great great JJ 40404 2713 23 foldings folding NNS 40404 2713 24 of of IN 40404 2713 25 the the DT 40404 2713 26 crust crust NN 40404 2713 27 . . . 40404 2714 1 1 1 LS 40404 2714 2 . . . 40404 2715 1 Mountain mountain NN 40404 2715 2 ranges range NNS 40404 2715 3 are be VBP 40404 2715 4 made make VBN 40404 2715 5 of of IN 40404 2715 6 belts belt NNS 40404 2715 7 of of IN 40404 2715 8 enormously enormously RB 40404 2715 9 and and CC 40404 2715 10 exceptionally exceptionally RB 40404 2715 11 thick thick JJ 40404 2715 12 sediments sediment NNS 40404 2715 13 . . . 40404 2716 1 The the DT 40404 2716 2 strata strata NN 40404 2716 3 of of IN 40404 2716 4 the the DT 40404 2716 5 Appalachians Appalachians NNPS 40404 2716 6 are be VBP 40404 2716 7 thirty thirty CD 40404 2716 8 thousand thousand CD 40404 2716 9 feet foot NNS 40404 2716 10 thick thick JJ 40404 2716 11 , , , 40404 2716 12 while while IN 40404 2716 13 the the DT 40404 2716 14 same same JJ 40404 2716 15 formations formation NNS 40404 2716 16 thin thin RB 40404 2716 17 out out IN 40404 2716 18 to to IN 40404 2716 19 five five CD 40404 2716 20 thousand thousand CD 40404 2716 21 feet foot NNS 40404 2716 22 in in IN 40404 2716 23 the the DT 40404 2716 24 Mississippi Mississippi NNP 40404 2716 25 valley valley NN 40404 2716 26 . . . 40404 2717 1 The the DT 40404 2717 2 folds fold NNS 40404 2717 3 of of IN 40404 2717 4 the the DT 40404 2717 5 Wasatch Wasatch NNP 40404 2717 6 Mountains Mountains NNPS 40404 2717 7 involve involve VBP 40404 2717 8 strata strata NN 40404 2717 9 thirty thirty CD 40404 2717 10 thousand thousand CD 40404 2717 11 feet foot NNS 40404 2717 12 thick thick JJ 40404 2717 13 , , , 40404 2717 14 which which WDT 40404 2717 15 thin thin JJ 40404 2717 16 to to IN 40404 2717 17 two two CD 40404 2717 18 thousand thousand CD 40404 2717 19 feet foot NNS 40404 2717 20 in in IN 40404 2717 21 the the DT 40404 2717 22 region region NN 40404 2717 23 of of IN 40404 2717 24 the the DT 40404 2717 25 Plains Plains NNPS 40404 2717 26 . . . 40404 2718 1 2 2 LS 40404 2718 2 . . . 40404 2719 1 The the DT 40404 2719 2 sedimentary sedimentary JJ 40404 2719 3 strata strata NN 40404 2719 4 of of IN 40404 2719 5 which which WDT 40404 2719 6 mountains mountain NNS 40404 2719 7 are be VBP 40404 2719 8 made make VBN 40404 2719 9 are be VBP 40404 2719 10 for for IN 40404 2719 11 the the DT 40404 2719 12 most most JJS 40404 2719 13 part part NN 40404 2719 14 the the DT 40404 2719 15 shallow shallow JJ 40404 2719 16 - - HYPH 40404 2719 17 water water NN 40404 2719 18 deposits deposit NNS 40404 2719 19 of of IN 40404 2719 20 continental continental JJ 40404 2719 21 deltas delta NNS 40404 2719 22 . . . 40404 2720 1 Mountain mountain NN 40404 2720 2 ranges range NNS 40404 2720 3 have have VBP 40404 2720 4 been be VBN 40404 2720 5 upfolded upfolde VBN 40404 2720 6 along along IN 40404 2720 7 the the DT 40404 2720 8 margins margin NNS 40404 2720 9 of of IN 40404 2720 10 continents continent NNS 40404 2720 11 . . . 40404 2721 1 3 3 LS 40404 2721 2 . . . 40404 2722 1 Shallow shallow JJ 40404 2722 2 - - HYPH 40404 2722 3 water water NN 40404 2722 4 deposits deposit NNS 40404 2722 5 of of IN 40404 2722 6 the the DT 40404 2722 7 immense immense JJ 40404 2722 8 thickness thickness NN 40404 2722 9 found find VBD 40404 2722 10 in in IN 40404 2722 11 mountain mountain NN 40404 2722 12 ranges range NNS 40404 2722 13 can can MD 40404 2722 14 be be VB 40404 2722 15 laid lay VBN 40404 2722 16 only only RB 40404 2722 17 in in IN 40404 2722 18 a a DT 40404 2722 19 gradually gradually RB 40404 2722 20 sinking sink VBG 40404 2722 21 area area NN 40404 2722 22 . . . 40404 2723 1 A a DT 40404 2723 2 profound profound JJ 40404 2723 3 subsidence subsidence NN 40404 2723 4 , , , 40404 2723 5 often often RB 40404 2723 6 to to TO 40404 2723 7 be be VB 40404 2723 8 reckoned reckon VBN 40404 2723 9 in in IN 40404 2723 10 tens ten NNS 40404 2723 11 of of IN 40404 2723 12 thousands thousand NNS 40404 2723 13 of of IN 40404 2723 14 feet foot NNS 40404 2723 15 , , , 40404 2723 16 precedes precede NNS 40404 2723 17 the the DT 40404 2723 18 upfolding upfolding NN 40404 2723 19 of of IN 40404 2723 20 a a DT 40404 2723 21 mountain mountain NN 40404 2723 22 range range NN 40404 2723 23 . . . 40404 2724 1 Thus thus RB 40404 2724 2 the the DT 40404 2724 3 history history NN 40404 2724 4 of of IN 40404 2724 5 mountains mountain NNS 40404 2724 6 of of IN 40404 2724 7 folding folding NN 40404 2724 8 is be VBZ 40404 2724 9 as as IN 40404 2724 10 follows follow VBZ 40404 2724 11 : : : 40404 2724 12 For for IN 40404 2724 13 long long JJ 40404 2724 14 ages age NNS 40404 2724 15 the the DT 40404 2724 16 sea sea NN 40404 2724 17 bottom bottom NN 40404 2724 18 off off IN 40404 2724 19 the the DT 40404 2724 20 coast coast NN 40404 2724 21 of of IN 40404 2724 22 a a DT 40404 2724 23 continent continent NN 40404 2724 24 slowly slowly RB 40404 2724 25 subsides subside NNS 40404 2724 26 , , , 40404 2724 27 and and CC 40404 2724 28 the the DT 40404 2724 29 great great JJ 40404 2724 30 trough trough NN 40404 2724 31 , , , 40404 2724 32 as as RB 40404 2724 33 fast fast RB 40404 2724 34 as as IN 40404 2724 35 it -PRON- PRP 40404 2724 36 forms form VBZ 40404 2724 37 , , , 40404 2724 38 is be VBZ 40404 2724 39 filled fill VBN 40404 2724 40 with with IN 40404 2724 41 sediments sediment NNS 40404 2724 42 , , , 40404 2724 43 which which WDT 40404 2724 44 at at IN 40404 2724 45 last last RB 40404 2724 46 come come VB 40404 2724 47 to to TO 40404 2724 48 be be VB 40404 2724 49 many many JJ 40404 2724 50 thousands thousand NNS 40404 2724 51 of of IN 40404 2724 52 feet foot NNS 40404 2724 53 thick thick JJ 40404 2724 54 . . . 40404 2725 1 The the DT 40404 2725 2 downward downward JJ 40404 2725 3 movement movement NN 40404 2725 4 finally finally RB 40404 2725 5 ceases cease VBZ 40404 2725 6 . . . 40404 2726 1 A a DT 40404 2726 2 slow slow JJ 40404 2726 3 but but CC 40404 2726 4 resistless resistless JJ 40404 2726 5 pressure pressure NN 40404 2726 6 sets set NNS 40404 2726 7 in in RP 40404 2726 8 , , , 40404 2726 9 and and CC 40404 2726 10 gradually gradually RB 40404 2726 11 , , , 40404 2726 12 and and CC 40404 2726 13 with with IN 40404 2726 14 a a DT 40404 2726 15 long long JJ 40404 2726 16 series series NN 40404 2726 17 of of IN 40404 2726 18 many many JJ 40404 2726 19 intermittent intermittent JJ 40404 2726 20 movements movement NNS 40404 2726 21 , , , 40404 2726 22 the the DT 40404 2726 23 vast vast JJ 40404 2726 24 mass mass NN 40404 2726 25 of of IN 40404 2726 26 accumulated accumulate VBN 40404 2726 27 sediments sediment NNS 40404 2726 28 is be VBZ 40404 2726 29 crumpled crumple VBN 40404 2726 30 and and CC 40404 2726 31 uplifted uplift VBN 40404 2726 32 into into IN 40404 2726 33 a a DT 40404 2726 34 mountain mountain NN 40404 2726 35 range range NN 40404 2726 36 . . . 40404 2727 1 Fractures fracture NNS 40404 2727 2 and and CC 40404 2727 3 Dislocations Dislocations NNPS 40404 2727 4 of of IN 40404 2727 5 the the DT 40404 2727 6 Crust Crust NNP 40404 2727 7 Considering consider VBG 40404 2727 8 the the DT 40404 2727 9 immense immense JJ 40404 2727 10 stresses stress NNS 40404 2727 11 to to TO 40404 2727 12 which which WDT 40404 2727 13 the the DT 40404 2727 14 rocks rock NNS 40404 2727 15 of of IN 40404 2727 16 the the DT 40404 2727 17 crust crust NN 40404 2727 18 are be VBP 40404 2727 19 subjected subject VBN 40404 2727 20 , , , 40404 2727 21 it -PRON- PRP 40404 2727 22 is be VBZ 40404 2727 23 not not RB 40404 2727 24 surprising surprising JJ 40404 2727 25 to to TO 40404 2727 26 find find VB 40404 2727 27 that that IN 40404 2727 28 they -PRON- PRP 40404 2727 29 often often RB 40404 2727 30 yield yield VBP 40404 2727 31 by by IN 40404 2727 32 fracture fracture NN 40404 2727 33 , , , 40404 2727 34 like like IN 40404 2727 35 brittle brittle JJ 40404 2727 36 bodies body NNS 40404 2727 37 , , , 40404 2727 38 instead instead RB 40404 2727 39 of of IN 40404 2727 40 by by IN 40404 2727 41 folding fold VBG 40404 2727 42 and and CC 40404 2727 43 flowing flow VBG 40404 2727 44 , , , 40404 2727 45 like like IN 40404 2727 46 plastic plastic JJ 40404 2727 47 solids solid NNS 40404 2727 48 . . . 40404 2728 1 Whether whether IN 40404 2728 2 rocks rock NNS 40404 2728 3 bend bend VBP 40404 2728 4 or or CC 40404 2728 5 break break VBP 40404 2728 6 depends depend VBZ 40404 2728 7 on on IN 40404 2728 8 the the DT 40404 2728 9 character character NN 40404 2728 10 and and CC 40404 2728 11 condition condition NN 40404 2728 12 of of IN 40404 2728 13 the the DT 40404 2728 14 rocks rock NNS 40404 2728 15 , , , 40404 2728 16 the the DT 40404 2728 17 load load NN 40404 2728 18 of of IN 40404 2728 19 overlying overlying NN 40404 2728 20 rocks rock NNS 40404 2728 21 which which WDT 40404 2728 22 they -PRON- PRP 40404 2728 23 bear bear VBP 40404 2728 24 , , , 40404 2728 25 and and CC 40404 2728 26 the the DT 40404 2728 27 amount amount NN 40404 2728 28 of of IN 40404 2728 29 the the DT 40404 2728 30 force force NN 40404 2728 31 and and CC 40404 2728 32 the the DT 40404 2728 33 slowness slowness NN 40404 2728 34 with with IN 40404 2728 35 which which WDT 40404 2728 36 it -PRON- PRP 40404 2728 37 is be VBZ 40404 2728 38 applied apply VBN 40404 2728 39 . . . 40404 2729 1 = = NFP 40404 2729 2 Joints.= Joints.= NNP 40404 2729 3 At at IN 40404 2729 4 the the DT 40404 2729 5 surface surface NN 40404 2729 6 , , , 40404 2729 7 where where WRB 40404 2729 8 their -PRON- PRP$ 40404 2729 9 load load NN 40404 2729 10 is be VBZ 40404 2729 11 least least JJS 40404 2729 12 , , , 40404 2729 13 we -PRON- PRP 40404 2729 14 find find VBP 40404 2729 15 rocks rock NNS 40404 2729 16 universally universally RB 40404 2729 17 broken break VBN 40404 2729 18 into into IN 40404 2729 19 blocks block NNS 40404 2729 20 of of IN 40404 2729 21 greater great JJR 40404 2729 22 or or CC 40404 2729 23 less less JJR 40404 2729 24 size size NN 40404 2729 25 by by IN 40404 2729 26 partings parting NNS 40404 2729 27 known know VBN 40404 2729 28 as as IN 40404 2729 29 joints joint NNS 40404 2729 30 . . . 40404 2730 1 Under under IN 40404 2730 2 this this DT 40404 2730 3 name name NN 40404 2730 4 are be VBP 40404 2730 5 included include VBN 40404 2730 6 many many JJ 40404 2730 7 division division NN 40404 2730 8 planes plane NNS 40404 2730 9 caused cause VBN 40404 2730 10 by by IN 40404 2730 11 cooling cooling NN 40404 2730 12 and and CC 40404 2730 13 drying dry VBG 40404 2730 14 ; ; : 40404 2730 15 but but CC 40404 2730 16 it -PRON- PRP 40404 2730 17 is be VBZ 40404 2730 18 now now RB 40404 2730 19 generally generally RB 40404 2730 20 believed believe VBN 40404 2730 21 that that IN 40404 2730 22 the the DT 40404 2730 23 larger large JJR 40404 2730 24 and and CC 40404 2730 25 more more RBR 40404 2730 26 regular regular JJ 40404 2730 27 joints joint NNS 40404 2730 28 , , , 40404 2730 29 especially especially RB 40404 2730 30 those those DT 40404 2730 31 which which WDT 40404 2730 32 run run VBP 40404 2730 33 parallel parallel NN 40404 2730 34 to to IN 40404 2730 35 the the DT 40404 2730 36 dip dip NN 40404 2730 37 and and CC 40404 2730 38 strike strike NN 40404 2730 39 of of IN 40404 2730 40 the the DT 40404 2730 41 strata strata NN 40404 2730 42 , , , 40404 2730 43 are be VBP 40404 2730 44 fractures fracture NNS 40404 2730 45 due due IN 40404 2730 46 to to IN 40404 2730 47 up up JJ 40404 2730 48 - - HYPH 40404 2730 49 and and CC 40404 2730 50 - - HYPH 40404 2730 51 down down RP 40404 2730 52 movements movement NNS 40404 2730 53 and and CC 40404 2730 54 foldings folding NNS 40404 2730 55 and and CC 40404 2730 56 twistings twisting NNS 40404 2730 57 of of IN 40404 2730 58 the the DT 40404 2730 59 rocks rock NNS 40404 2730 60 . . . 40404 2731 1 [ [ -LRB- 40404 2731 2 Illustration illustration NN 40404 2731 3 : : : 40404 2731 4 Fig Fig NNP 40404 2731 5 . . . 40404 2732 1 183 183 CD 40404 2732 2 . . . 40404 2733 1 Joints joint NNS 40404 2733 2 utilized utilize VBN 40404 2733 3 by by IN 40404 2733 4 a a DT 40404 2733 5 River River NNP 40404 2733 6 in in IN 40404 2733 7 widening widen VBG 40404 2733 8 its -PRON- PRP$ 40404 2733 9 Valley Valley NNP 40404 2733 10 , , , 40404 2733 11 Iowa Iowa NNP 40404 2733 12 ] ] -RRB- 40404 2733 13 Joints joint NNS 40404 2733 14 are be VBP 40404 2733 15 used use VBN 40404 2733 16 to to IN 40404 2733 17 great great JJ 40404 2733 18 advantage advantage NN 40404 2733 19 in in IN 40404 2733 20 quarrying quarrying NN 40404 2733 21 , , , 40404 2733 22 and and CC 40404 2733 23 we -PRON- PRP 40404 2733 24 have have VBP 40404 2733 25 seen see VBN 40404 2733 26 how how WRB 40404 2733 27 they -PRON- PRP 40404 2733 28 are be VBP 40404 2733 29 utilized utilize VBN 40404 2733 30 by by IN 40404 2733 31 the the DT 40404 2733 32 weather weather NN 40404 2733 33 in in IN 40404 2733 34 breaking break VBG 40404 2733 35 up up RP 40404 2733 36 rock rock NN 40404 2733 37 masses masse NNS 40404 2733 38 , , , 40404 2733 39 by by IN 40404 2733 40 rivers river NNS 40404 2733 41 in in IN 40404 2733 42 widening widen VBG 40404 2733 43 their -PRON- PRP$ 40404 2733 44 valleys valley NNS 40404 2733 45 , , , 40404 2733 46 by by IN 40404 2733 47 the the DT 40404 2733 48 sea sea NN 40404 2733 49 in in IN 40404 2733 50 driving drive VBG 40404 2733 51 back back RP 40404 2733 52 its -PRON- PRP$ 40404 2733 53 cliffs cliff NNS 40404 2733 54 , , , 40404 2733 55 by by IN 40404 2733 56 glaciers glacier NNS 40404 2733 57 in in IN 40404 2733 58 plucking pluck VBG 40404 2733 59 their -PRON- PRP$ 40404 2733 60 beds bed NNS 40404 2733 61 , , , 40404 2733 62 and and CC 40404 2733 63 how how WRB 40404 2733 64 they -PRON- PRP 40404 2733 65 are be VBP 40404 2733 66 enlarged enlarge VBN 40404 2733 67 in in IN 40404 2733 68 soluble soluble JJ 40404 2733 69 rocks rock NNS 40404 2733 70 to to TO 40404 2733 71 form form VB 40404 2733 72 natural natural JJ 40404 2733 73 passageways passageway NNS 40404 2733 74 for for IN 40404 2733 75 underground underground JJ 40404 2733 76 waters water NNS 40404 2733 77 . . . 40404 2734 1 The the DT 40404 2734 2 ends end NNS 40404 2734 3 of of IN 40404 2734 4 the the DT 40404 2734 5 parted part VBN 40404 2734 6 strata strata NN 40404 2734 7 match match NN 40404 2734 8 along along IN 40404 2734 9 both both DT 40404 2734 10 sides side NNS 40404 2734 11 of of IN 40404 2734 12 joint joint JJ 40404 2734 13 planes plane NNS 40404 2734 14 ; ; : 40404 2734 15 in in RB 40404 2734 16 . . . 40404 2735 1 joints joint NNS 40404 2735 2 there there EX 40404 2735 3 has have VBZ 40404 2735 4 been be VBN 40404 2735 5 little little JJ 40404 2735 6 or or CC 40404 2735 7 no no DT 40404 2735 8 displacement displacement NN 40404 2735 9 of of IN 40404 2735 10 the the DT 40404 2735 11 broken broken JJ 40404 2735 12 rocks rock NNS 40404 2735 13 . . . 40404 2736 1 [ [ -LRB- 40404 2736 2 Illustration illustration NN 40404 2736 3 : : : 40404 2736 4 Fig Fig NNP 40404 2736 5 . . . 40404 2737 1 184 184 CD 40404 2737 2 . . . 40404 2738 1 A a DT 40404 2738 2 Normal Normal NNP 40404 2738 3 Fault Fault NNP 40404 2738 4 ] ] -RRB- 40404 2738 5 = = VBZ 40404 2738 6 Faults.= Faults.= NNP 40404 2738 7 In in IN 40404 2738 8 Figure Figure NNP 40404 2738 9 184 184 CD 40404 2738 10 the the DT 40404 2738 11 rocks rock NNS 40404 2738 12 have have VBP 40404 2738 13 been be VBN 40404 2738 14 both both DT 40404 2738 15 broken break VBN 40404 2738 16 and and CC 40404 2738 17 dislocated dislocate VBN 40404 2738 18 along along IN 40404 2738 19 the the DT 40404 2738 20 plane plane NN 40404 2738 21 _ _ NNP 40404 2738 22 ff ff NNP 40404 2738 23 ´ ´ NNP 40404 2738 24 _ _ NNP 40404 2738 25 . . . 40404 2739 1 One one CD 40404 2739 2 side side NN 40404 2739 3 must must MD 40404 2739 4 have have VB 40404 2739 5 been be VBN 40404 2739 6 moved move VBN 40404 2739 7 up up RB 40404 2739 8 or or CC 40404 2739 9 down down RB 40404 2739 10 past past IN 40404 2739 11 the the DT 40404 2739 12 other other JJ 40404 2739 13 . . . 40404 2740 1 Such such PDT 40404 2740 2 a a DT 40404 2740 3 dislocation dislocation NN 40404 2740 4 is be VBZ 40404 2740 5 called call VBN 40404 2740 6 a a DT 40404 2740 7 fault fault NN 40404 2740 8 . . . 40404 2741 1 The the DT 40404 2741 2 amount amount NN 40404 2741 3 of of IN 40404 2741 4 the the DT 40404 2741 5 displacement displacement NN 40404 2741 6 , , , 40404 2741 7 as as IN 40404 2741 8 measured measure VBN 40404 2741 9 by by IN 40404 2741 10 the the DT 40404 2741 11 vertical vertical JJ 40404 2741 12 distance distance NN 40404 2741 13 between between IN 40404 2741 14 the the DT 40404 2741 15 ends end NNS 40404 2741 16 of of IN 40404 2741 17 a a DT 40404 2741 18 parted parted JJ 40404 2741 19 layer layer NN 40404 2741 20 , , , 40404 2741 21 is be VBZ 40404 2741 22 the the DT 40404 2741 23 _ _ NNP 40404 2741 24 throw throw NN 40404 2741 25 _ _ NNP 40404 2741 26 ( ( -LRB- 40404 2741 27 _ _ NNP 40404 2741 28 cd cd NNP 40404 2741 29 _ _ NNP 40404 2741 30 ) ) -RRB- 40404 2741 31 . . . 40404 2742 1 The the DT 40404 2742 2 angle angle NN 40404 2742 3 ( ( -LRB- 40404 2742 4 _ _ NNP 40404 2742 5 ff´v ff´v NNP 40404 2742 6 _ _ NNP 40404 2742 7 ) ) -RRB- 40404 2742 8 which which WDT 40404 2742 9 the the DT 40404 2742 10 fault fault NN 40404 2742 11 plane plane NN 40404 2742 12 makes make VBZ 40404 2742 13 with with IN 40404 2742 14 the the DT 40404 2742 15 vertical vertical JJ 40404 2742 16 is be VBZ 40404 2742 17 the the DT 40404 2742 18 _ _ NNP 40404 2742 19 hade hade NN 40404 2742 20 _ _ NNP 40404 2742 21 . . . 40404 2743 1 In in IN 40404 2743 2 Figure figure NN 40404 2743 3 184 184 CD 40404 2743 4 the the DT 40404 2743 5 right right JJ 40404 2743 6 side side NN 40404 2743 7 has have VBZ 40404 2743 8 gone go VBN 40404 2743 9 down down RB 40404 2743 10 relatively relatively RB 40404 2743 11 to to IN 40404 2743 12 the the DT 40404 2743 13 left left NN 40404 2743 14 ; ; : 40404 2743 15 the the DT 40404 2743 16 right right NN 40404 2743 17 is be VBZ 40404 2743 18 the the DT 40404 2743 19 side side NN 40404 2743 20 of of IN 40404 2743 21 the the DT 40404 2743 22 downthrow downthrow NN 40404 2743 23 , , , 40404 2743 24 while while IN 40404 2743 25 the the DT 40404 2743 26 left left NN 40404 2743 27 is be VBZ 40404 2743 28 the the DT 40404 2743 29 side side NN 40404 2743 30 of of IN 40404 2743 31 the the DT 40404 2743 32 upthrow upthrow NN 40404 2743 33 . . . 40404 2744 1 Where where WRB 40404 2744 2 the the DT 40404 2744 3 fault fault NN 40404 2744 4 plane plane NN 40404 2744 5 is be VBZ 40404 2744 6 not not RB 40404 2744 7 vertical vertical JJ 40404 2744 8 the the DT 40404 2744 9 surfaces surface NNS 40404 2744 10 on on IN 40404 2744 11 the the DT 40404 2744 12 two two CD 40404 2744 13 sides side NNS 40404 2744 14 may may MD 40404 2744 15 be be VB 40404 2744 16 distinguished distinguish VBN 40404 2744 17 as as IN 40404 2744 18 the the DT 40404 2744 19 _ _ NNP 40404 2744 20 hanging hang VBG 40404 2744 21 wall wall NN 40404 2744 22 _ _ NNP 40404 2744 23 ( ( -LRB- 40404 2744 24 that that IN 40404 2744 25 on on IN 40404 2744 26 the the DT 40404 2744 27 right right NN 40404 2744 28 of of IN 40404 2744 29 Figure Figure NNP 40404 2744 30 184 184 CD 40404 2744 31 ) ) -RRB- 40404 2744 32 and and CC 40404 2744 33 the the DT 40404 2744 34 _ _ NNP 40404 2744 35 foot foot NN 40404 2744 36 wall wall NN 40404 2744 37 _ _ NNP 40404 2744 38 ( ( -LRB- 40404 2744 39 that that IN 40404 2744 40 on on IN 40404 2744 41 the the DT 40404 2744 42 left left NN 40404 2744 43 of of IN 40404 2744 44 the the DT 40404 2744 45 same same JJ 40404 2744 46 figure figure NN 40404 2744 47 ) ) -RRB- 40404 2744 48 . . . 40404 2745 1 Faults fault NNS 40404 2745 2 differ differ VBP 40404 2745 3 in in IN 40404 2745 4 throw throw NN 40404 2745 5 from from IN 40404 2745 6 a a DT 40404 2745 7 fraction fraction NN 40404 2745 8 of of IN 40404 2745 9 an an DT 40404 2745 10 inch inch NN 40404 2745 11 to to IN 40404 2745 12 many many JJ 40404 2745 13 thousands thousand NNS 40404 2745 14 of of IN 40404 2745 15 feet foot NNS 40404 2745 16 . . . 40404 2746 1 = = NFP 40404 2746 2 Slickensides.= Slickensides.= NNP 40404 2746 3 If if IN 40404 2746 4 we -PRON- PRP 40404 2746 5 examine examine VBP 40404 2746 6 the the DT 40404 2746 7 walls wall NNS 40404 2746 8 of of IN 40404 2746 9 a a DT 40404 2746 10 fault fault NN 40404 2746 11 , , , 40404 2746 12 we -PRON- PRP 40404 2746 13 may may MD 40404 2746 14 find find VB 40404 2746 15 further further JJ 40404 2746 16 evidence evidence NN 40404 2746 17 of of IN 40404 2746 18 movement movement NN 40404 2746 19 in in IN 40404 2746 20 the the DT 40404 2746 21 fact fact NN 40404 2746 22 that that IN 40404 2746 23 the the DT 40404 2746 24 surfaces surface NNS 40404 2746 25 are be VBP 40404 2746 26 polished polish VBN 40404 2746 27 and and CC 40404 2746 28 grooved groove VBN 40404 2746 29 by by IN 40404 2746 30 the the DT 40404 2746 31 enormous enormous JJ 40404 2746 32 friction friction NN 40404 2746 33 which which WDT 40404 2746 34 they -PRON- PRP 40404 2746 35 have have VBP 40404 2746 36 suffered suffer VBN 40404 2746 37 as as IN 40404 2746 38 they -PRON- PRP 40404 2746 39 have have VBP 40404 2746 40 ground grind VBN 40404 2746 41 one one CD 40404 2746 42 upon upon IN 40404 2746 43 the the DT 40404 2746 44 other other JJ 40404 2746 45 . . . 40404 2747 1 These these DT 40404 2747 2 appearances appearance NNS 40404 2747 3 , , , 40404 2747 4 called call VBN 40404 2747 5 slickensides slickenside NNS 40404 2747 6 , , , 40404 2747 7 have have VBP 40404 2747 8 sometimes sometimes RB 40404 2747 9 been be VBN 40404 2747 10 mistaken mistaken JJ 40404 2747 11 for for IN 40404 2747 12 the the DT 40404 2747 13 results result NNS 40404 2747 14 of of IN 40404 2747 15 glacial glacial JJ 40404 2747 16 action action NN 40404 2747 17 . . . 40404 2748 1 = = NFP 40404 2748 2 Normal normal JJ 40404 2748 3 faults.= faults.= NNS 40404 2748 4 Faults fault NNS 40404 2748 5 are be VBP 40404 2748 6 of of IN 40404 2748 7 two two CD 40404 2748 8 kinds,--normal kinds,--normal JJ 40404 2748 9 faults fault NNS 40404 2748 10 and and CC 40404 2748 11 thrust thrust JJ 40404 2748 12 faults fault NNS 40404 2748 13 . . . 40404 2749 1 Normal normal JJ 40404 2749 2 faults fault NNS 40404 2749 3 , , , 40404 2749 4 of of IN 40404 2749 5 which which WDT 40404 2749 6 Figure Figure NNP 40404 2749 7 184 184 CD 40404 2749 8 is be VBZ 40404 2749 9 an an DT 40404 2749 10 example example NN 40404 2749 11 , , , 40404 2749 12 hade hade NN 40404 2749 13 to to IN 40404 2749 14 the the DT 40404 2749 15 downthrow downthrow NN 40404 2749 16 ; ; : 40404 2749 17 the the DT 40404 2749 18 hanging hang VBG 40404 2749 19 wall wall NN 40404 2749 20 has have VBZ 40404 2749 21 gone go VBN 40404 2749 22 down down RB 40404 2749 23 . . . 40404 2750 1 The the DT 40404 2750 2 total total JJ 40404 2750 3 length length NN 40404 2750 4 of of IN 40404 2750 5 the the DT 40404 2750 6 strata strata NN 40404 2750 7 has have VBZ 40404 2750 8 been be VBN 40404 2750 9 increased increase VBN 40404 2750 10 by by IN 40404 2750 11 the the DT 40404 2750 12 displacement displacement NN 40404 2750 13 . . . 40404 2751 1 It -PRON- PRP 40404 2751 2 seems seem VBZ 40404 2751 3 that that IN 40404 2751 4 the the DT 40404 2751 5 strata strata NN 40404 2751 6 have have VBP 40404 2751 7 been be VBN 40404 2751 8 stretched stretch VBN 40404 2751 9 and and CC 40404 2751 10 broken break VBN 40404 2751 11 , , , 40404 2751 12 and and CC 40404 2751 13 that that IN 40404 2751 14 the the DT 40404 2751 15 blocks block NNS 40404 2751 16 have have VBP 40404 2751 17 readjusted readjust VBN 40404 2751 18 themselves -PRON- PRP 40404 2751 19 under under IN 40404 2751 20 the the DT 40404 2751 21 action action NN 40404 2751 22 of of IN 40404 2751 23 gravity gravity NN 40404 2751 24 as as IN 40404 2751 25 they -PRON- PRP 40404 2751 26 settled settle VBD 40404 2751 27 . . . 40404 2752 1 = = NFP 40404 2752 2 Thrust Thrust NNP 40404 2752 3 faults.= faults.= CD 40404 2752 4 Thrust Thrust NNP 40404 2752 5 faults fault VBZ 40404 2752 6 hade hade NN 40404 2752 7 to to IN 40404 2752 8 the the DT 40404 2752 9 upthrow upthrow NN 40404 2752 10 ; ; : 40404 2752 11 the the DT 40404 2752 12 hanging hang VBG 40404 2752 13 wall wall NN 40404 2752 14 has have VBZ 40404 2752 15 gone go VBN 40404 2752 16 up up RB 40404 2752 17 . . . 40404 2753 1 Clearly clearly RB 40404 2753 2 such such JJ 40404 2753 3 faults fault NNS 40404 2753 4 , , , 40404 2753 5 where where WRB 40404 2753 6 the the DT 40404 2753 7 strata strata NN 40404 2753 8 occupy occupy VBP 40404 2753 9 less less JJR 40404 2753 10 space space NN 40404 2753 11 than than IN 40404 2753 12 before before RB 40404 2753 13 , , , 40404 2753 14 are be VBP 40404 2753 15 due due JJ 40404 2753 16 to to IN 40404 2753 17 lateral lateral JJ 40404 2753 18 thrust thrust NN 40404 2753 19 . . . 40404 2754 1 Folds fold NNS 40404 2754 2 and and CC 40404 2754 3 thrust thrust JJ 40404 2754 4 faults fault NNS 40404 2754 5 are be VBP 40404 2754 6 closely closely RB 40404 2754 7 associated associate VBN 40404 2754 8 . . . 40404 2755 1 Under under IN 40404 2755 2 lateral lateral JJ 40404 2755 3 pressure pressure NN 40404 2755 4 strata stratum NNS 40404 2755 5 may may MD 40404 2755 6 fold fold VB 40404 2755 7 to to IN 40404 2755 8 a a DT 40404 2755 9 certain certain JJ 40404 2755 10 point point NN 40404 2755 11 and and CC 40404 2755 12 then then RB 40404 2755 13 tear tear VB 40404 2755 14 apart apart RB 40404 2755 15 and and CC 40404 2755 16 fault fault VB 40404 2755 17 along along IN 40404 2755 18 the the DT 40404 2755 19 surface surface NN 40404 2755 20 of of IN 40404 2755 21 least least JJS 40404 2755 22 resistance resistance NN 40404 2755 23 . . . 40404 2756 1 Under under IN 40404 2756 2 immense immense JJ 40404 2756 3 pressure pressure NN 40404 2756 4 strata strata NN 40404 2756 5 also also RB 40404 2756 6 break break VBP 40404 2756 7 by by IN 40404 2756 8 shear shear NN 40404 2756 9 without without IN 40404 2756 10 folding fold VBG 40404 2756 11 . . . 40404 2757 1 Thus thus RB 40404 2757 2 , , , 40404 2757 3 in in IN 40404 2757 4 Figure figure NN 40404 2757 5 185 185 CD 40404 2757 6 , , , 40404 2757 7 the the DT 40404 2757 8 rigid rigid JJ 40404 2757 9 earth earth NN 40404 2757 10 block block NN 40404 2757 11 under under IN 40404 2757 12 lateral lateral JJ 40404 2757 13 thrust thrust NN 40404 2757 14 has have VBZ 40404 2757 15 found find VBN 40404 2757 16 it -PRON- PRP 40404 2757 17 easier easy JJR 40404 2757 18 to to TO 40404 2757 19 break break VB 40404 2757 20 along along IN 40404 2757 21 the the DT 40404 2757 22 fault fault NN 40404 2757 23 plane plane NN 40404 2757 24 than than IN 40404 2757 25 to to TO 40404 2757 26 fold fold VB 40404 2757 27 . . . 40404 2758 1 Where where WRB 40404 2758 2 such such JJ 40404 2758 3 faults fault NNS 40404 2758 4 are be VBP 40404 2758 5 nearly nearly RB 40404 2758 6 horizontal horizontal JJ 40404 2758 7 they -PRON- PRP 40404 2758 8 are be VBP 40404 2758 9 distinguished distinguish VBN 40404 2758 10 as as IN 40404 2758 11 _ _ NNP 40404 2758 12 thrust thrust VBD 40404 2758 13 planes plane NNS 40404 2758 14 _ _ NNP 40404 2758 15 . . . 40404 2759 1 [ [ -LRB- 40404 2759 2 Illustration illustration NN 40404 2759 3 : : : 40404 2759 4 Fig Fig NNP 40404 2759 5 . . . 40404 2760 1 185 185 CD 40404 2760 2 . . . 40404 2761 1 A a DT 40404 2761 2 Thrust thrust JJ 40404 2761 3 Fault Fault NNP 40404 2761 4 ] ] -RRB- 40404 2761 5 In in IN 40404 2761 6 all all DT 40404 2761 7 thrust thrust VBN 40404 2761 8 faults fault NNS 40404 2761 9 one one CD 40404 2761 10 mass mass NN 40404 2761 11 has have VBZ 40404 2761 12 been be VBN 40404 2761 13 pushed push VBN 40404 2761 14 over over IN 40404 2761 15 another another DT 40404 2761 16 , , , 40404 2761 17 so so IN 40404 2761 18 as as IN 40404 2761 19 to to TO 40404 2761 20 bring bring VB 40404 2761 21 the the DT 40404 2761 22 underlying underlying JJ 40404 2761 23 and and CC 40404 2761 24 older old JJR 40404 2761 25 strata strata NN 40404 2761 26 upon upon IN 40404 2761 27 younger young JJR 40404 2761 28 beds bed NNS 40404 2761 29 ; ; : 40404 2761 30 and and CC 40404 2761 31 when when WRB 40404 2761 32 the the DT 40404 2761 33 fault fault NN 40404 2761 34 planes plane NNS 40404 2761 35 are be VBP 40404 2761 36 nearly nearly RB 40404 2761 37 horizontal horizontal JJ 40404 2761 38 , , , 40404 2761 39 and and CC 40404 2761 40 especially especially RB 40404 2761 41 when when WRB 40404 2761 42 the the DT 40404 2761 43 rocks rock NNS 40404 2761 44 have have VBP 40404 2761 45 been be VBN 40404 2761 46 broken break VBN 40404 2761 47 into into IN 40404 2761 48 many many JJ 40404 2761 49 slices slice NNS 40404 2761 50 which which WDT 40404 2761 51 have have VBP 40404 2761 52 slidden slide VBN 40404 2761 53 far far RB 40404 2761 54 one one NN 40404 2761 55 upon upon IN 40404 2761 56 another another DT 40404 2761 57 , , , 40404 2761 58 the the DT 40404 2761 59 true true JJ 40404 2761 60 succession succession NN 40404 2761 61 of of IN 40404 2761 62 strata strata NN 40404 2761 63 is be VBZ 40404 2761 64 extremely extremely RB 40404 2761 65 hard hard JJ 40404 2761 66 to to TO 40404 2761 67 decipher decipher VB 40404 2761 68 . . . 40404 2762 1 In in IN 40404 2762 2 the the DT 40404 2762 3 Selkirk Selkirk NNP 40404 2762 4 Mountains Mountains NNPS 40404 2762 5 of of IN 40404 2762 6 Canada Canada NNP 40404 2762 7 the the DT 40404 2762 8 basement basement NN 40404 2762 9 rocks rock VBZ 40404 2762 10 of of IN 40404 2762 11 the the DT 40404 2762 12 region region NN 40404 2762 13 have have VBP 40404 2762 14 been be VBN 40404 2762 15 driven drive VBN 40404 2762 16 east east RB 40404 2762 17 for for IN 40404 2762 18 seven seven CD 40404 2762 19 miles mile NNS 40404 2762 20 on on IN 40404 2762 21 a a DT 40404 2762 22 thrust thrust JJ 40404 2762 23 plane plane NN 40404 2762 24 , , , 40404 2762 25 over over IN 40404 2762 26 rocks rock NNS 40404 2762 27 which which WDT 40404 2762 28 originally originally RB 40404 2762 29 lay lay VBP 40404 2762 30 thousands thousand NNS 40404 2762 31 of of IN 40404 2762 32 feet foot NNS 40404 2762 33 above above IN 40404 2762 34 them -PRON- PRP 40404 2762 35 . . . 40404 2763 1 Along along IN 40404 2763 2 the the DT 40404 2763 3 western western JJ 40404 2763 4 Appalachians appalachian NNS 40404 2763 5 , , , 40404 2763 6 from from IN 40404 2763 7 Virginia Virginia NNP 40404 2763 8 to to IN 40404 2763 9 Georgia Georgia NNP 40404 2763 10 , , , 40404 2763 11 the the DT 40404 2763 12 mountain mountain NN 40404 2763 13 folds fold NNS 40404 2763 14 are be VBP 40404 2763 15 broken break VBN 40404 2763 16 by by IN 40404 2763 17 more more JJR 40404 2763 18 than than IN 40404 2763 19 fifteen fifteen CD 40404 2763 20 parallel parallel JJ 40404 2763 21 thrust thrust VBN 40404 2763 22 planes plane NNS 40404 2763 23 , , , 40404 2763 24 running run VBG 40404 2763 25 from from IN 40404 2763 26 northeast northeast NN 40404 2763 27 to to TO 40404 2763 28 southwest southwest VB 40404 2763 29 , , , 40404 2763 30 along along IN 40404 2763 31 which which WDT 40404 2763 32 the the DT 40404 2763 33 older old JJR 40404 2763 34 strata stratum NNS 40404 2763 35 have have VBP 40404 2763 36 been be VBN 40404 2763 37 pushed push VBN 40404 2763 38 westward westward RB 40404 2763 39 over over IN 40404 2763 40 the the DT 40404 2763 41 younger young JJR 40404 2763 42 . . . 40404 2764 1 The the DT 40404 2764 2 longest long JJS 40404 2764 3 continuous continuous JJ 40404 2764 4 fault fault NN 40404 2764 5 has have VBZ 40404 2764 6 been be VBN 40404 2764 7 traced trace VBN 40404 2764 8 three three CD 40404 2764 9 hundred hundred CD 40404 2764 10 and and CC 40404 2764 11 seventy seventy CD 40404 2764 12 - - HYPH 40404 2764 13 five five CD 40404 2764 14 miles mile NNS 40404 2764 15 , , , 40404 2764 16 and and CC 40404 2764 17 the the DT 40404 2764 18 greatest great JJS 40404 2764 19 horizontal horizontal JJ 40404 2764 20 displacement displacement NN 40404 2764 21 has have VBZ 40404 2764 22 been be VBN 40404 2764 23 estimated estimate VBN 40404 2764 24 at at IN 40404 2764 25 not not RB 40404 2764 26 less less JJR 40404 2764 27 than than IN 40404 2764 28 eleven eleven CD 40404 2764 29 miles mile NNS 40404 2764 30 . . . 40404 2765 1 = = NFP 40404 2765 2 Crush crush NN 40404 2765 3 breccia.= breccia.= NNS 40404 2765 4 Rocks rock NNS 40404 2765 5 often often RB 40404 2765 6 do do VBP 40404 2765 7 not not RB 40404 2765 8 fault fault VB 40404 2765 9 with with IN 40404 2765 10 a a DT 40404 2765 11 clean clean JJ 40404 2765 12 and and CC 40404 2765 13 simple simple JJ 40404 2765 14 fracture fracture NN 40404 2765 15 , , , 40404 2765 16 but but CC 40404 2765 17 along along IN 40404 2765 18 a a DT 40404 2765 19 zone zone NN 40404 2765 20 , , , 40404 2765 21 sometimes sometimes RB 40404 2765 22 several several JJ 40404 2765 23 yards yard NNS 40404 2765 24 in in IN 40404 2765 25 width width NN 40404 2765 26 , , , 40404 2765 27 in in IN 40404 2765 28 which which WDT 40404 2765 29 they -PRON- PRP 40404 2765 30 are be VBP 40404 2765 31 broken break VBN 40404 2765 32 to to IN 40404 2765 33 fragments fragment NNS 40404 2765 34 . . . 40404 2766 1 It -PRON- PRP 40404 2766 2 may may MD 40404 2766 3 occur occur VB 40404 2766 4 also also RB 40404 2766 5 that that DT 40404 2766 6 strata strata NN 40404 2766 7 which which WDT 40404 2766 8 as as IN 40404 2766 9 a a DT 40404 2766 10 whole whole JJ 40404 2766 11 yield yield NN 40404 2766 12 to to IN 40404 2766 13 lateral lateral JJ 40404 2766 14 thrust thrust VBN 40404 2766 15 by by IN 40404 2766 16 folding fold VBG 40404 2766 17 include include VBP 40404 2766 18 beds bed NNS 40404 2766 19 of of IN 40404 2766 20 brittle brittle JJ 40404 2766 21 rocks rock NNS 40404 2766 22 , , , 40404 2766 23 such such JJ 40404 2766 24 as as IN 40404 2766 25 thin thin JJ 40404 2766 26 - - HYPH 40404 2766 27 layered layered JJ 40404 2766 28 limestones limestone NNS 40404 2766 29 , , , 40404 2766 30 which which WDT 40404 2766 31 are be VBP 40404 2766 32 crushed crush VBN 40404 2766 33 to to IN 40404 2766 34 pieces piece NNS 40404 2766 35 by by IN 40404 2766 36 the the DT 40404 2766 37 strain strain NN 40404 2766 38 . . . 40404 2767 1 In in IN 40404 2767 2 either either DT 40404 2767 3 case case NN 40404 2767 4 the the DT 40404 2767 5 fragments fragment NNS 40404 2767 6 when when WRB 40404 2767 7 recemented recemente VBN 40404 2767 8 by by IN 40404 2767 9 percolating percolate VBG 40404 2767 10 waters water NNS 40404 2767 11 form form VBP 40404 2767 12 a a DT 40404 2767 13 rock rock NN 40404 2767 14 known know VBN 40404 2767 15 as as IN 40404 2767 16 a a DT 40404 2767 17 _ _ NNP 40404 2767 18 crush crush NN 40404 2767 19 breccia breccia NNP 40404 2767 20 _ _ NNP 40404 2767 21 ( ( -LRB- 40404 2767 22 pronounced pronounce VBN 40404 2767 23 _ _ NNP 40404 2767 24 bretcha_)(Fig bretcha_)(fig NN 40404 2767 25 . . . 40404 2768 1 186 186 CD 40404 2768 2 ) ) -RRB- 40404 2768 3 . . . 40404 2769 1 [ [ -LRB- 40404 2769 2 Illustration illustration NN 40404 2769 3 : : : 40404 2769 4 Fig Fig NNP 40404 2769 5 . . . 40404 2770 1 186 186 CD 40404 2770 2 . . . 40404 2771 1 Breccia Breccia NNP 40404 2771 2 ] ] -RRB- 40404 2771 3 Breccia Breccia NNP 40404 2771 4 is be VBZ 40404 2771 5 a a DT 40404 2771 6 term term NN 40404 2771 7 applied apply VBN 40404 2771 8 to to IN 40404 2771 9 any any DT 40404 2771 10 rock rock NN 40404 2771 11 formed form VBN 40404 2771 12 of of IN 40404 2771 13 cemented cemented JJ 40404 2771 14 _ _ NNP 40404 2771 15 angular angular JJ 40404 2771 16 _ _ NNP 40404 2771 17 fragments fragment NNS 40404 2771 18 . . . 40404 2772 1 This this DT 40404 2772 2 rock rock NN 40404 2772 3 may may MD 40404 2772 4 be be VB 40404 2772 5 made make VBN 40404 2772 6 by by IN 40404 2772 7 the the DT 40404 2772 8 consolidation consolidation NN 40404 2772 9 of of IN 40404 2772 10 volcanic volcanic JJ 40404 2772 11 cinders cinder NNS 40404 2772 12 , , , 40404 2772 13 of of IN 40404 2772 14 angular angular JJ 40404 2772 15 waste waste NN 40404 2772 16 at at IN 40404 2772 17 the the DT 40404 2772 18 foot foot NN 40404 2772 19 of of IN 40404 2772 20 cliffs cliff NNS 40404 2772 21 , , , 40404 2772 22 or or CC 40404 2772 23 of of IN 40404 2772 24 fragments fragment NNS 40404 2772 25 of of IN 40404 2772 26 coral coral NN 40404 2772 27 torn tear VBN 40404 2772 28 by by IN 40404 2772 29 the the DT 40404 2772 30 waves wave NNS 40404 2772 31 from from IN 40404 2772 32 coral coral JJ 40404 2772 33 reefs reef NNS 40404 2772 34 , , , 40404 2772 35 as as RB 40404 2772 36 well well RB 40404 2772 37 as as IN 40404 2772 38 of of IN 40404 2772 39 strata stratum NNS 40404 2772 40 crushed crush VBN 40404 2772 41 by by IN 40404 2772 42 crustal crustal JJ 40404 2772 43 movements movement NNS 40404 2772 44 . . . 40404 2773 1 Surface surface NN 40404 2773 2 Features feature NNS 40404 2773 3 due due JJ 40404 2773 4 to to IN 40404 2773 5 Dislocations Dislocations NNP 40404 2773 6 = = SYM 40404 2773 7 Fault Fault NNP 40404 2773 8 scarps.= scarps.= CD 40404 2773 9 A a DT 40404 2773 10 fault fault NN 40404 2773 11 of of IN 40404 2773 12 recent recent JJ 40404 2773 13 date date NN 40404 2773 14 may may MD 40404 2773 15 be be VB 40404 2773 16 marked mark VBN 40404 2773 17 at at IN 40404 2773 18 surface surface NN 40404 2773 19 by by IN 40404 2773 20 a a DT 40404 2773 21 scarp scarp NN 40404 2773 22 , , , 40404 2773 23 because because IN 40404 2773 24 the the DT 40404 2773 25 face face NN 40404 2773 26 of of IN 40404 2773 27 the the DT 40404 2773 28 upthrown upthrown JJ 40404 2773 29 block block NN 40404 2773 30 has have VBZ 40404 2773 31 not not RB 40404 2773 32 yet yet RB 40404 2773 33 been be VBN 40404 2773 34 worn worn JJ 40404 2773 35 to to IN 40404 2773 36 the the DT 40404 2773 37 level level NN 40404 2773 38 of of IN 40404 2773 39 the the DT 40404 2773 40 downthrow downthrow NN 40404 2773 41 side side NN 40404 2773 42 . . . 40404 2774 1 After after IN 40404 2774 2 the the DT 40404 2774 3 upthrown upthrown JJ 40404 2774 4 block block NN 40404 2774 5 has have VBZ 40404 2774 6 been be VBN 40404 2774 7 worn wear VBN 40404 2774 8 down down RP 40404 2774 9 to to IN 40404 2774 10 this this DT 40404 2774 11 level level NN 40404 2774 12 , , , 40404 2774 13 differential differential NN 40404 2774 14 erosion erosion NN 40404 2774 15 produces produce VBZ 40404 2774 16 fault fault NN 40404 2774 17 scarps scarps NN 40404 2774 18 wherever wherever WRB 40404 2774 19 weak weak JJ 40404 2774 20 rocks rock NNS 40404 2774 21 and and CC 40404 2774 22 resistant resistant JJ 40404 2774 23 rocks rock NNS 40404 2774 24 are be VBP 40404 2774 25 brought bring VBN 40404 2774 26 in in IN 40404 2774 27 contact contact NN 40404 2774 28 along along IN 40404 2774 29 the the DT 40404 2774 30 fault fault NN 40404 2774 31 plane plane NN 40404 2774 32 ; ; : 40404 2774 33 and and CC 40404 2774 34 the the DT 40404 2774 35 harder hard JJR 40404 2774 36 rocks rock NNS 40404 2774 37 , , , 40404 2774 38 whether whether IN 40404 2774 39 on on IN 40404 2774 40 the the DT 40404 2774 41 upthrow upthrow NN 40404 2774 42 or or CC 40404 2774 43 the the DT 40404 2774 44 downthrow downthrow NN 40404 2774 45 side side NN 40404 2774 46 , , , 40404 2774 47 emerge emerge VBP 40404 2774 48 in in IN 40404 2774 49 a a DT 40404 2774 50 line line NN 40404 2774 51 of of IN 40404 2774 52 cliffs cliff NNS 40404 2774 53 . . . 40404 2775 1 Where where WRB 40404 2775 2 a a DT 40404 2775 3 fault fault NN 40404 2775 4 is be VBZ 40404 2775 5 so so RB 40404 2775 6 old old JJ 40404 2775 7 that that IN 40404 2775 8 no no DT 40404 2775 9 abrupt abrupt JJ 40404 2775 10 scarps scarps NN 40404 2775 11 appear appear VBP 40404 2775 12 , , , 40404 2775 13 its -PRON- PRP$ 40404 2775 14 general general JJ 40404 2775 15 course course NN 40404 2775 16 is be VBZ 40404 2775 17 sometimes sometimes RB 40404 2775 18 marked mark VBN 40404 2775 19 by by IN 40404 2775 20 the the DT 40404 2775 21 line line NN 40404 2775 22 of of IN 40404 2775 23 division division NN 40404 2775 24 between between IN 40404 2775 25 highland highland NNP 40404 2775 26 and and CC 40404 2775 27 lowland lowland NNP 40404 2775 28 or or CC 40404 2775 29 hill hill NN 40404 2775 30 and and CC 40404 2775 31 plain plain JJ 40404 2775 32 . . . 40404 2776 1 Great great JJ 40404 2776 2 faults fault NNS 40404 2776 3 have have VBP 40404 2776 4 sometimes sometimes RB 40404 2776 5 brought bring VBN 40404 2776 6 ancient ancient JJ 40404 2776 7 crystalline crystalline NN 40404 2776 8 rocks rock NNS 40404 2776 9 in in IN 40404 2776 10 contact contact NN 40404 2776 11 with with IN 40404 2776 12 weaker weak JJR 40404 2776 13 and and CC 40404 2776 14 younger young JJR 40404 2776 15 sedimentary sedimentary JJ 40404 2776 16 rocks rock NNS 40404 2776 17 , , , 40404 2776 18 and and CC 40404 2776 19 long long RB 40404 2776 20 after after IN 40404 2776 21 erosion erosion NN 40404 2776 22 has have VBZ 40404 2776 23 destroyed destroy VBN 40404 2776 24 all all DT 40404 2776 25 fault fault NN 40404 2776 26 scarps scarps NN 40404 2776 27 the the DT 40404 2776 28 harder hard JJR 40404 2776 29 crystallines crystalline NNS 40404 2776 30 rise rise VBP 40404 2776 31 in in IN 40404 2776 32 an an DT 40404 2776 33 upland upland NN 40404 2776 34 of of IN 40404 2776 35 rugged rugged JJ 40404 2776 36 or or CC 40404 2776 37 mountainous mountainous JJ 40404 2776 38 country country NN 40404 2776 39 which which WDT 40404 2776 40 meets meet VBZ 40404 2776 41 the the DT 40404 2776 42 lowland lowland NN 40404 2776 43 along along IN 40404 2776 44 the the DT 40404 2776 45 line line NN 40404 2776 46 of of IN 40404 2776 47 faulting faulting NN 40404 2776 48 . . . 40404 2777 1 [ [ -LRB- 40404 2777 2 Illustration illustration NN 40404 2777 3 : : : 40404 2777 4 Fig Fig NNP 40404 2777 5 . . . 40404 2778 1 187 187 CD 40404 2778 2 . . . 40404 2779 1 A a DT 40404 2779 2 Concealed conceal VBN 40404 2779 3 Fault Fault NNP 40404 2779 4 This this DT 40404 2779 5 fault fault NN 40404 2779 6 may may MD 40404 2779 7 be be VB 40404 2779 8 inferred infer VBN 40404 2779 9 from from IN 40404 2779 10 the the DT 40404 2779 11 changes change NNS 40404 2779 12 in in IN 40404 2779 13 strata strata NN 40404 2779 14 in in IN 40404 2779 15 passing pass VBG 40404 2779 16 along along IN 40404 2779 17 the the DT 40404 2779 18 strike strike NN 40404 2779 19 , , , 40404 2779 20 as as IN 40404 2779 21 from from IN 40404 2779 22 _ _ NNP 40404 2779 23 b b NNP 40404 2779 24 _ _ NNP 40404 2779 25 to to IN 40404 2779 26 _ _ NNP 40404 2779 27 a a DT 40404 2779 28 ´ ´ CD 40404 2779 29 _ _ NNP 40404 2779 30 and and CC 40404 2779 31 from from IN 40404 2779 32 _ _ NNP 40404 2779 33 c c NNP 40404 2779 34 _ _ NNP 40404 2779 35 to to IN 40404 2779 36 _ _ NNP 40404 2779 37 b b NNP 40404 2779 38 ´ ´ CD 40404 2779 39 _ _ NNP 40404 2779 40 ] ] -RRB- 40404 2779 41 The the DT 40404 2779 42 vast vast JJ 40404 2779 43 majority majority NN 40404 2779 44 of of IN 40404 2779 45 faults fault NNS 40404 2779 46 give give VBP 40404 2779 47 rise rise NN 40404 2779 48 to to IN 40404 2779 49 no no DT 40404 2779 50 surface surface NN 40404 2779 51 features feature NNS 40404 2779 52 . . . 40404 2780 1 The the DT 40404 2780 2 faulted faulted JJ 40404 2780 3 region region NN 40404 2780 4 may may MD 40404 2780 5 be be VB 40404 2780 6 old old JJ 40404 2780 7 enough enough RB 40404 2780 8 to to TO 40404 2780 9 have have VB 40404 2780 10 been be VBN 40404 2780 11 baseleveled baselevele VBN 40404 2780 12 , , , 40404 2780 13 or or CC 40404 2780 14 the the DT 40404 2780 15 rocks rock NNS 40404 2780 16 on on IN 40404 2780 17 both both DT 40404 2780 18 sides side NNS 40404 2780 19 of of IN 40404 2780 20 the the DT 40404 2780 21 line line NN 40404 2780 22 of of IN 40404 2780 23 dislocation dislocation NN 40404 2780 24 may may MD 40404 2780 25 be be VB 40404 2780 26 alike alike RB 40404 2780 27 in in IN 40404 2780 28 their -PRON- PRP$ 40404 2780 29 resistance resistance NN 40404 2780 30 to to IN 40404 2780 31 erosion erosion NN 40404 2780 32 and and CC 40404 2780 33 therefore therefore RB 40404 2780 34 have have VBP 40404 2780 35 been be VBN 40404 2780 36 worn wear VBN 40404 2780 37 down down RP 40404 2780 38 to to IN 40404 2780 39 a a DT 40404 2780 40 common common JJ 40404 2780 41 slope slope NN 40404 2780 42 . . . 40404 2781 1 The the DT 40404 2781 2 fault fault NN 40404 2781 3 may may MD 40404 2781 4 be be VB 40404 2781 5 entirely entirely RB 40404 2781 6 concealed conceal VBN 40404 2781 7 by by IN 40404 2781 8 the the DT 40404 2781 9 mantle mantle NN 40404 2781 10 of of IN 40404 2781 11 waste waste NNP 40404 2781 12 , , , 40404 2781 13 and and CC 40404 2781 14 in in IN 40404 2781 15 such such JJ 40404 2781 16 cases case NNS 40404 2781 17 it -PRON- PRP 40404 2781 18 can can MD 40404 2781 19 be be VB 40404 2781 20 inferred infer VBN 40404 2781 21 from from IN 40404 2781 22 abrupt abrupt JJ 40404 2781 23 changes change NNS 40404 2781 24 in in IN 40404 2781 25 the the DT 40404 2781 26 character character NN 40404 2781 27 or or CC 40404 2781 28 the the DT 40404 2781 29 strike strike NN 40404 2781 30 and and CC 40404 2781 31 dip dip NN 40404 2781 32 of of IN 40404 2781 33 the the DT 40404 2781 34 strata strata NN 40404 2781 35 where where WRB 40404 2781 36 they -PRON- PRP 40404 2781 37 may may MD 40404 2781 38 outcrop outcrop VB 40404 2781 39 near near IN 40404 2781 40 it -PRON- PRP 40404 2781 41 ( ( -LRB- 40404 2781 42 Fig fig NN 40404 2781 43 . . . 40404 2782 1 187 187 CD 40404 2782 2 ) ) -RRB- 40404 2782 3 . . . 40404 2783 1 [ [ -LRB- 40404 2783 2 Illustration illustration NN 40404 2783 3 : : : 40404 2783 4 Fig Fig NNP 40404 2783 5 . . . 40404 2784 1 188 188 CD 40404 2784 2 . . . 40404 2785 1 East East NNP 40404 2785 2 - - HYPH 40404 2785 3 West West NNP 40404 2785 4 Section Section NNP 40404 2785 5 across across IN 40404 2785 6 the the DT 40404 2785 7 Broken Broken NNP 40404 2785 8 Plateau Plateau NNP 40404 2785 9 north north NN 40404 2785 10 of of IN 40404 2785 11 the the DT 40404 2785 12 Grand Grand NNP 40404 2785 13 Canyon Canyon NNP 40404 2785 14 of of IN 40404 2785 15 the the DT 40404 2785 16 Colorado Colorado NNP 40404 2785 17 River River NNP 40404 2785 18 , , , 40404 2785 19 Arizona Arizona NNP 40404 2785 20 ] ] -RRB- 40404 2785 21 The the DT 40404 2785 22 plateau plateau NN 40404 2785 23 trenched trench VBN 40404 2785 24 by by IN 40404 2785 25 the the DT 40404 2785 26 Grand Grand NNP 40404 2785 27 Canyon Canyon NNP 40404 2785 28 of of IN 40404 2785 29 the the DT 40404 2785 30 Colorado Colorado NNP 40404 2785 31 River River NNP 40404 2785 32 exhibits exhibit VBZ 40404 2785 33 a a DT 40404 2785 34 series series NN 40404 2785 35 of of IN 40404 2785 36 magnificent magnificent JJ 40404 2785 37 fault fault NN 40404 2785 38 scarps scarps NNP 40404 2785 39 whose whose WP$ 40404 2785 40 general general JJ 40404 2785 41 course course NN 40404 2785 42 is be VBZ 40404 2785 43 from from IN 40404 2785 44 north north RB 40404 2785 45 to to IN 40404 2785 46 south south NN 40404 2785 47 , , , 40404 2785 48 marking mark VBG 40404 2785 49 the the DT 40404 2785 50 edges edge NNS 40404 2785 51 of of IN 40404 2785 52 the the DT 40404 2785 53 great great JJ 40404 2785 54 crust crust NN 40404 2785 55 blocks block VBZ 40404 2785 56 into into IN 40404 2785 57 which which WDT 40404 2785 58 the the DT 40404 2785 59 country country NN 40404 2785 60 has have VBZ 40404 2785 61 been be VBN 40404 2785 62 broken break VBN 40404 2785 63 . . . 40404 2786 1 The the DT 40404 2786 2 highest high JJS 40404 2786 3 part part NN 40404 2786 4 of of IN 40404 2786 5 the the DT 40404 2786 6 plateau plateau NN 40404 2786 7 is be VBZ 40404 2786 8 a a DT 40404 2786 9 crust crust NN 40404 2786 10 block block NN 40404 2786 11 ninety ninety CD 40404 2786 12 miles mile NNS 40404 2786 13 long long JJ 40404 2786 14 and and CC 40404 2786 15 thirty thirty CD 40404 2786 16 - - HYPH 40404 2786 17 five five CD 40404 2786 18 miles mile NNS 40404 2786 19 in in IN 40404 2786 20 maximum maximum JJ 40404 2786 21 width width NN 40404 2786 22 , , , 40404 2786 23 which which WDT 40404 2786 24 has have VBZ 40404 2786 25 been be VBN 40404 2786 26 hoisted hoist VBN 40404 2786 27 to to IN 40404 2786 28 nine nine CD 40404 2786 29 thousand thousand CD 40404 2786 30 three three CD 40404 2786 31 hundred hundred CD 40404 2786 32 feet foot NNS 40404 2786 33 above above RB 40404 2786 34 , , , 40404 2786 35 sea sea NN 40404 2786 36 level level NN 40404 2786 37 . . . 40404 2787 1 On on IN 40404 2787 2 the the DT 40404 2787 3 east east NN 40404 2787 4 it -PRON- PRP 40404 2787 5 descends descend VBZ 40404 2787 6 four four CD 40404 2787 7 thousand thousand CD 40404 2787 8 feet foot NNS 40404 2787 9 by by IN 40404 2787 10 a a DT 40404 2787 11 monoclinal monoclinal JJ 40404 2787 12 fold fold NN 40404 2787 13 , , , 40404 2787 14 which which WDT 40404 2787 15 passes pass VBZ 40404 2787 16 into into IN 40404 2787 17 a a DT 40404 2787 18 fault fault NN 40404 2787 19 towards towards IN 40404 2787 20 the the DT 40404 2787 21 north north NN 40404 2787 22 . . . 40404 2788 1 On on IN 40404 2788 2 the the DT 40404 2788 3 west west NN 40404 2788 4 it -PRON- PRP 40404 2788 5 breaks break VBZ 40404 2788 6 down down RP 40404 2788 7 by by IN 40404 2788 8 a a DT 40404 2788 9 succession succession NN 40404 2788 10 of of IN 40404 2788 11 terraces terrace NNS 40404 2788 12 faced face VBN 40404 2788 13 by by IN 40404 2788 14 fault fault NN 40404 2788 15 scarps scarps NN 40404 2788 16 . . . 40404 2789 1 The the DT 40404 2789 2 throw throw NN 40404 2789 3 of of IN 40404 2789 4 these these DT 40404 2789 5 faults fault NNS 40404 2789 6 varies vary VBZ 40404 2789 7 from from IN 40404 2789 8 seven seven CD 40404 2789 9 hundred hundred CD 40404 2789 10 feet foot NNS 40404 2789 11 to to IN 40404 2789 12 more more JJR 40404 2789 13 than than IN 40404 2789 14 a a DT 40404 2789 15 mile mile NN 40404 2789 16 . . . 40404 2790 1 The the DT 40404 2790 2 escarpments escarpment NNS 40404 2790 3 , , , 40404 2790 4 however however RB 40404 2790 5 , , , 40404 2790 6 are be VBP 40404 2790 7 due due JJ 40404 2790 8 in in 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40404 2795 7 of of IN 40404 2795 8 ancient ancient JJ 40404 2795 9 crystalline crystalline NN 40404 2795 10 rocks rock NNS 40404 2795 11 whose whose WP$ 40404 2795 12 crumpled crumple VBN 40404 2795 13 structures structure NNS 40404 2795 14 prove prove VBP 40404 2795 15 that that IN 40404 2795 16 they -PRON- PRP 40404 2795 17 are be VBP 40404 2795 18 but but IN 40404 2795 19 the the DT 40404 2795 20 roots root NNS 40404 2795 21 of of IN 40404 2795 22 once once RB 40404 2795 23 lofty lofty JJ 40404 2795 24 mountains mountain NNS 40404 2795 25 ; ; : 40404 2795 26 on on IN 40404 2795 27 the the DT 40404 2795 28 other other JJ 40404 2795 29 lies lie VBZ 40404 2795 30 a a DT 40404 2795 31 lowland lowland NN 40404 2795 32 of of IN 40404 2795 33 sandstone sandstone NN 40404 2795 34 and and CC 40404 2795 35 other other JJ 40404 2795 36 stratified stratified JJ 40404 2795 37 rocks rock NNS 40404 2795 38 formed form VBN 40404 2795 39 from from IN 40404 2795 40 the the DT 40404 2795 41 waste 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40404 2796 30 crystallines crystalline NNS 40404 2796 31 . . . 40404 2797 1 We -PRON- PRP 40404 2797 2 may may MD 40404 2797 3 infer infer VB 40404 2797 4 that that IN 40404 2797 5 these these DT 40404 2797 6 ancient ancient JJ 40404 2797 7 mountains mountain NNS 40404 2797 8 were be VBD 40404 2797 9 reduced reduce VBN 40404 2797 10 along along IN 40404 2797 11 their -PRON- PRP$ 40404 2797 12 margins margin NNS 40404 2797 13 to to IN 40404 2797 14 low low JJ 40404 2797 15 plains plain NNS 40404 2797 16 , , , 40404 2797 17 which which WDT 40404 2797 18 were be VBD 40404 2797 19 slowly slowly RB 40404 2797 20 lowered lower VBN 40404 2797 21 beneath beneath IN 40404 2797 22 the the DT 40404 2797 23 sea sea NN 40404 2797 24 to to TO 40404 2797 25 receive receive VB 40404 2797 26 a a DT 40404 2797 27 cover cover NN 40404 2797 28 of of IN 40404 2797 29 sedimentary sedimentary JJ 40404 2797 30 rocks rock NNS 40404 2797 31 . . . 40404 2798 1 Still still RB 40404 2798 2 later later RB 40404 2798 3 came come VBD 40404 2798 4 an an DT 40404 2798 5 uplift uplift NN 40404 2798 6 and and CC 40404 2798 7 dislocation dislocation NN 40404 2798 8 . . . 40404 2799 1 On on IN 40404 2799 2 the the DT 40404 2799 3 one one CD 40404 2799 4 side side NN 40404 2799 5 erosion erosion NN 40404 2799 6 has have VBZ 40404 2799 7 since since IN 40404 2799 8 stripped strip VBN 40404 2799 9 off off IN 40404 2799 10 the the DT 40404 2799 11 sandstones sandstone NNS 40404 2799 12 for for IN 40404 2799 13 the the DT 40404 2799 14 most most JJS 40404 2799 15 part part NN 40404 2799 16 , , , 40404 2799 17 but but CC 40404 2799 18 the the DT 40404 2799 19 hard hard JJ 40404 2799 20 crystalline crystalline NN 40404 2799 21 rocks rock NNS 40404 2799 22 yet yet CC 40404 2799 23 stand stand VBP 40404 2799 24 in in IN 40404 2799 25 bold bold JJ 40404 2799 26 relief relief NN 40404 2799 27 . . . 40404 2800 1 On on IN 40404 2800 2 the the DT 40404 2800 3 other other JJ 40404 2800 4 side side NN 40404 2800 5 the the DT 40404 2800 6 weak weak JJ 40404 2800 7 sedimentary sedimentary JJ 40404 2800 8 rocks rock NNS 40404 2800 9 have have VBP 40404 2800 10 been be VBN 40404 2800 11 worn wear VBN 40404 2800 12 down down RP 40404 2800 13 to to IN 40404 2800 14 lowlands lowland NNS 40404 2800 15 . . . 40404 2801 1 = = NFP 40404 2801 2 Rift rift JJ 40404 2801 3 valleys.= valleys.= NN 40404 2801 4 In in IN 40404 2801 5 a a DT 40404 2801 6 broken broken JJ 40404 2801 7 region region NN 40404 2801 8 undergoing undergo VBG 40404 2801 9 uplift uplift NN 40404 2801 10 or or CC 40404 2801 11 the the DT 40404 2801 12 unequal unequal JJ 40404 2801 13 settling settling NN 40404 2801 14 which which WDT 40404 2801 15 may may MD 40404 2801 16 follow follow VB 40404 2801 17 , , , 40404 2801 18 a a DT 40404 2801 19 slice slice NN 40404 2801 20 inclosed inclose VBD 40404 2801 21 between between IN 40404 2801 22 two two CD 40404 2801 23 fissures fissure NNS 40404 2801 24 may may MD 40404 2801 25 sink sink VB 40404 2801 26 below below IN 40404 2801 27 the the DT 40404 2801 28 level level NN 40404 2801 29 of of IN 40404 2801 30 the the DT 40404 2801 31 crust crust NN 40404 2801 32 blocks block VBZ 40404 2801 33 on on IN 40404 2801 34 either either DT 40404 2801 35 side side NN 40404 2801 36 , , , 40404 2801 37 thus thus RB 40404 2801 38 forming form VBG 40404 2801 39 a a DT 40404 2801 40 linear linear JJ 40404 2801 41 depression depression NN 40404 2801 42 known know VBN 40404 2801 43 as as IN 40404 2801 44 a a DT 40404 2801 45 rift rift JJ 40404 2801 46 valley valley NN 40404 2801 47 , , , 40404 2801 48 or or CC 40404 2801 49 valley valley NNP 40404 2801 50 of of IN 40404 2801 51 fracture fracture NN 40404 2801 52 . . . 40404 2802 1 [ [ -LRB- 40404 2802 2 Illustration illustration NN 40404 2802 3 : : : 40404 2802 4 Fig Fig NNP 40404 2802 5 . . . 40404 2803 1 190 190 CD 40404 2803 2 . . . 40404 2804 1 Section section NN 40404 2804 2 from from IN 40404 2804 3 the the DT 40404 2804 4 Mountains Mountains NNPS 40404 2804 5 of of IN 40404 2804 6 Palestine Palestine NNP 40404 2804 7 to to IN 40404 2804 8 the the DT 40404 2804 9 Mountains Mountains NNPS 40404 2804 10 of of IN 40404 2804 11 Moab Moab NNP 40404 2804 12 across across IN 40404 2804 13 the the DT 40404 2804 14 Dead Dead NNP 40404 2804 15 Sea Sea NNP 40404 2804 16 _ _ NNP 40404 2804 17 a a DT 40404 2804 18 _ _ NNP 40404 2804 19 , , , 40404 2804 20 ancient ancient JJ 40404 2804 21 schists schist NNS 40404 2804 22 ; ; : 40404 2804 23 _ _ NNP 40404 2804 24 b b NNP 40404 2804 25 _ _ NNP 40404 2804 26 , , , 40404 2804 27 Carboniferous carboniferous JJ 40404 2804 28 strata strata NN 40404 2804 29 ; ; : 40404 2804 30 _ _ NNP 40404 2804 31 c c NNP 40404 2804 32 _ _ NNP 40404 2804 33 , , , 40404 2804 34 _ _ NNP 40404 2804 35 d d NNP 40404 2804 36 _ _ NNP 40404 2804 37 , , , 40404 2804 38 and and CC 40404 2804 39 _ _ NNP 40404 2804 40 e e NNP 40404 2804 41 _ _ NNP 40404 2804 42 , , , 40404 2804 43 Cretaceous cretaceous JJ 40404 2804 44 strata strata NN 40404 2804 45 ] ] -RRB- 40404 2804 46 One one CD 40404 2804 47 of of IN 40404 2804 48 the the DT 40404 2804 49 most most RBS 40404 2804 50 striking striking JJ 40404 2804 51 examples example NNS 40404 2804 52 of of IN 40404 2804 53 this this DT 40404 2804 54 rare rare JJ 40404 2804 55 type type NN 40404 2804 56 of of IN 40404 2804 57 valley valley NN 40404 2804 58 is be VBZ 40404 2804 59 the the DT 40404 2804 60 long long JJ 40404 2804 61 trough trough NN 40404 2804 62 which which WDT 40404 2804 63 runs run VBZ 40404 2804 64 straight straight RB 40404 2804 65 from from IN 40404 2804 66 the the DT 40404 2804 67 Lebanon Lebanon NNP 40404 2804 68 Mountains Mountains NNPS 40404 2804 69 of of IN 40404 2804 70 Syria Syria NNP 40404 2804 71 on on IN 40404 2804 72 the the DT 40404 2804 73 north north NN 40404 2804 74 to to IN 40404 2804 75 the the DT 40404 2804 76 Red Red NNP 40404 2804 77 Sea Sea NNP 40404 2804 78 on on IN 40404 2804 79 the the DT 40404 2804 80 south south NN 40404 2804 81 , , , 40404 2804 82 and and CC 40404 2804 83 whose whose WP$ 40404 2804 84 central central JJ 40404 2804 85 portion portion NN 40404 2804 86 is be VBZ 40404 2804 87 occupied occupy VBN 40404 2804 88 by by IN 40404 2804 89 the the DT 40404 2804 90 Jordan Jordan NNP 40404 2804 91 valley valley NN 40404 2804 92 and and CC 40404 2804 93 the the DT 40404 2804 94 Dead Dead NNP 40404 2804 95 Sea Sea NNP 40404 2804 96 . . . 40404 2805 1 The the DT 40404 2805 2 plateau plateau NN 40404 2805 3 which which WDT 40404 2805 4 it -PRON- PRP 40404 2805 5 gashes gash VBZ 40404 2805 6 has have VBZ 40404 2805 7 been be VBN 40404 2805 8 lifted lift VBN 40404 2805 9 more more JJR 40404 2805 10 than than IN 40404 2805 11 three three CD 40404 2805 12 thousand thousand CD 40404 2805 13 feet foot NNS 40404 2805 14 above above IN 40404 2805 15 sea sea NN 40404 2805 16 level level NN 40404 2805 17 , , , 40404 2805 18 and and CC 40404 2805 19 the the DT 40404 2805 20 bottom bottom NN 40404 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, , 40404 2806 17 and and CC 40404 2806 18 in in IN 40404 2806 19 the the DT 40404 2806 20 Gulf Gulf NNP 40404 2806 21 of of IN 40404 2806 22 Akabah Akabah NNP 40404 2806 23 again again RB 40404 2806 24 sinks sink VBZ 40404 2806 25 below below IN 40404 2806 26 it -PRON- PRP 40404 2806 27 . . . 40404 2807 1 This this DT 40404 2807 2 uneven uneven JJ 40404 2807 3 floor floor NN 40404 2807 4 could could MD 40404 2807 5 be be VB 40404 2807 6 accounted account VBN 40404 2807 7 for for IN 40404 2807 8 either either CC 40404 2807 9 by by IN 40404 2807 10 the the DT 40404 2807 11 profound profound JJ 40404 2807 12 warping warping NN 40404 2807 13 of of IN 40404 2807 14 a a DT 40404 2807 15 valley valley NN 40404 2807 16 of of IN 40404 2807 17 erosion erosion NN 40404 2807 18 or or CC 40404 2807 19 by by IN 40404 2807 20 the the DT 40404 2807 21 unequal unequal JJ 40404 2807 22 depression depression NN 40404 2807 23 of of IN 40404 2807 24 the the DT 40404 2807 25 floor floor NN 40404 2807 26 of of IN 40404 2807 27 a a DT 40404 2807 28 rift rift JJ 40404 2807 29 valley valley NN 40404 2807 30 . . . 40404 2808 1 But but CC 40404 2808 2 that that IN 40404 2808 3 the the DT 40404 2808 4 trough trough NN 40404 2808 5 is be VBZ 40404 2808 6 a a DT 40404 2808 7 true true JJ 40404 2808 8 valley valley NN 40404 2808 9 of of IN 40404 2808 10 fracture fracture NN 40404 2808 11 is be VBZ 40404 2808 12 proved prove VBN 40404 2808 13 by by IN 40404 2808 14 the the DT 40404 2808 15 fact fact NN 40404 2808 16 that that IN 40404 2808 17 on on IN 40404 2808 18 either either DT 40404 2808 19 side side NN 40404 2808 20 it -PRON- PRP 40404 2808 21 is be VBZ 40404 2808 22 bounded bound VBN 40404 2808 23 by by IN 40404 2808 24 fault fault NN 40404 2808 25 scarps scarps NN 40404 2808 26 and and CC 40404 2808 27 monoclinal monoclinal JJ 40404 2808 28 folds fold NNS 40404 2808 29 . . . 40404 2809 1 The the DT 40404 2809 2 keystone keystone NN 40404 2809 3 of of IN 40404 2809 4 the the DT 40404 2809 5 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2810 34 strait strait NN 40404 2810 35 of of IN 40404 2810 36 Bab Bab NNP 40404 2810 37 - - HYPH 40404 2810 38 el el NNP 40404 2810 39 - - HYPH 40404 2810 40 Mandeb Mandeb NNP 40404 2810 41 as as IN 40404 2810 42 far far RB 40404 2810 43 south south RB 40404 2810 44 as as IN 40404 2810 45 Lake Lake NNP 40404 2810 46 Nyassa Nyassa NNP 40404 2810 47 -- -- : 40404 2810 48 valleys valley NNS 40404 2810 49 which which WDT 40404 2810 50 contain contain VBP 40404 2810 51 more more JJR 40404 2810 52 than than IN 40404 2810 53 thirty thirty CD 40404 2810 54 lakes lake NNS 40404 2810 55 -- -- : 40404 2810 56 belong belong VBP 40404 2810 57 to to IN 40404 2810 58 a a DT 40404 2810 59 single single JJ 40404 2810 60 system system NN 40404 2810 61 of of IN 40404 2810 62 dislocation dislocation NN 40404 2810 63 . . . 40404 2811 1 Should Should MD 40404 2811 2 you -PRON- PRP 40404 2811 3 expect expect VB 40404 2811 4 the the DT 40404 2811 5 lateral lateral JJ 40404 2811 6 valleys valley NNS 40404 2811 7 of of IN 40404 2811 8 a a DT 40404 2811 9 rift rift JJ 40404 2811 10 valley valley NN 40404 2811 11 at at IN 40404 2811 12 the the DT 40404 2811 13 time time NN 40404 2811 14 of of IN 40404 2811 15 its -PRON- PRP$ 40404 2811 16 formation formation NN 40404 2811 17 to to TO 40404 2811 18 enter enter VB 40404 2811 19 it -PRON- PRP 40404 2811 20 as as IN 40404 2811 21 hanging hang VBG 40404 2811 22 valleys valley NNS 40404 2811 23 or or CC 40404 2811 24 at at IN 40404 2811 25 a a DT 40404 2811 26 common common JJ 40404 2811 27 level level NN 40404 2811 28 ? ? . 40404 2812 1 = = NFP 40404 2812 2 Block Block NNP 40404 2812 3 mountains.= mountains.= CD 40404 2812 4 Dislocations dislocation NNS 40404 2812 5 take take VB 40404 2812 6 place place NN 40404 2812 7 on on IN 40404 2812 8 so so RB 40404 2812 9 grand grand JJ 40404 2812 10 a a DT 40404 2812 11 scale scale NN 40404 2812 12 that that IN 40404 2812 13 by by IN 40404 2812 14 the the DT 40404 2812 15 upheaval upheaval NN 40404 2812 16 of of IN 40404 2812 17 blocks block NNS 40404 2812 18 of of IN 40404 2812 19 the the DT 40404 2812 20 earth earth NN 40404 2812 21 's 's POS 40404 2812 22 crust crust NN 40404 2812 23 or or CC 40404 2812 24 the the DT 40404 2812 25 downfaulting downfaulting NN 40404 2812 26 of of IN 40404 2812 27 the the DT 40404 2812 28 blocks block NNS 40404 2812 29 about about RB 40404 2812 30 one one CD 40404 2812 31 which which WDT 40404 2812 32 is be VBZ 40404 2812 33 relatively relatively RB 40404 2812 34 stationary stationary JJ 40404 2812 35 , , , 40404 2812 36 mountains mountain NNS 40404 2812 37 known know VBN 40404 2812 38 as as IN 40404 2812 39 block block NN 40404 2812 40 mountains mountain NNS 40404 2812 41 are be VBP 40404 2812 42 produced produce VBN 40404 2812 43 . . . 40404 2813 1 A a DT 40404 2813 2 tilted tilt VBN 40404 2813 3 crust crust NN 40404 2813 4 block block NN 40404 2813 5 may may MD 40404 2813 6 present present VB 40404 2813 7 a a DT 40404 2813 8 steep steep JJ 40404 2813 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16 States States NNP 40404 2816 17 bounded bound VBN 40404 2816 18 by by IN 40404 2816 19 the the DT 40404 2816 20 Rocky Rocky NNP 40404 2816 21 Mountains Mountains NNPS 40404 2816 22 on on IN 40404 2816 23 the the DT 40404 2816 24 east east NN 40404 2816 25 , , , 40404 2816 26 and and CC 40404 2816 27 on on IN 40404 2816 28 the the DT 40404 2816 29 west west NN 40404 2816 30 by by IN 40404 2816 31 the the DT 40404 2816 32 ranges range NNS 40404 2816 33 which which WDT 40404 2816 34 front front VBP 40404 2816 35 the the DT 40404 2816 36 Pacific Pacific NNP 40404 2816 37 , , , 40404 2816 38 have have VBP 40404 2816 39 been be VBN 40404 2816 40 profoundly profoundly RB 40404 2816 41 fractured fracture VBN 40404 2816 42 and and CC 40404 2816 43 faulted fault VBN 40404 2816 44 . . . 40404 2817 1 The the DT 40404 2817 2 system system NN 40404 2817 3 of of IN 40404 2817 4 great great JJ 40404 2817 5 fissures fissure NNS 40404 2817 6 by by IN 40404 2817 7 which which WDT 40404 2817 8 they -PRON- PRP 40404 2817 9 are be VBP 40404 2817 10 broken broken JJ 40404 2817 11 extends extend VBZ 40404 2817 12 north north JJ 40404 2817 13 and and CC 40404 2817 14 south south NN 40404 2817 15 , , , 40404 2817 16 and and CC 40404 2817 17 the the DT 40404 2817 18 long long JJ 40404 2817 19 , , , 40404 2817 20 narrow narrow JJ 40404 2817 21 , , , 40404 2817 22 tilted tilt VBN 40404 2817 23 crust crust NN 40404 2817 24 blocks block NNS 40404 2817 25 intercepted intercept VBN 40404 2817 26 between between IN 40404 2817 27 the the DT 40404 2817 28 fissures fissure NNS 40404 2817 29 give give VBP 40404 2817 30 rise rise NN 40404 2817 31 to to IN 40404 2817 32 the the DT 40404 2817 33 numerous numerous JJ 40404 2817 34 north north NN 40404 2817 35 - - HYPH 40404 2817 36 south south NN 40404 2817 37 ranges range NNS 40404 2817 38 of of IN 40404 2817 39 the the DT 40404 2817 40 region region NN 40404 2817 41 . . . 40404 2818 1 Some some DT 40404 2818 2 of of IN 40404 2818 3 the the DT 40404 2818 4 tilted tilt VBN 40404 2818 5 blocks block NNS 40404 2818 6 , , , 40404 2818 7 as as IN 40404 2818 8 those those DT 40404 2818 9 of of IN 40404 2818 10 southern southern JJ 40404 2818 11 Oregon Oregon NNP 40404 2818 12 , , , 40404 2818 13 are be VBP 40404 2818 14 as as RB 40404 2818 15 yet yet RB 40404 2818 16 but but CC 40404 2818 17 moderately moderately RB 40404 2818 18 carved carve VBN 40404 2818 19 by by IN 40404 2818 20 erosion erosion NN 40404 2818 21 , , , 40404 2818 22 and and CC 40404 2818 23 shallow shallow JJ 40404 2818 24 lakes lake NNS 40404 2818 25 lie lie VBP 40404 2818 26 on on IN 40404 2818 27 the the DT 40404 2818 28 waste waste NN 40404 2818 29 that that WDT 40404 2818 30 has have VBZ 40404 2818 31 been be VBN 40404 2818 32 washed wash VBN 40404 2818 33 into into IN 40404 2818 34 the the DT 40404 2818 35 depressions depression NNS 40404 2818 36 between between IN 40404 2818 37 them -PRON- PRP 40404 2818 38 ( ( -LRB- 40404 2818 39 Fig fig NN 40404 2818 40 . . . 40404 2819 1 191 191 CD 40404 2819 2 ) ) -RRB- 40404 2819 3 . . . 40404 2820 1 We -PRON- PRP 40404 2820 2 may may MD 40404 2820 3 therefore therefore RB 40404 2820 4 conclude conclude VB 40404 2820 5 that that IN 40404 2820 6 their -PRON- PRP$ 40404 2820 7 displacement displacement NN 40404 2820 8 is be VBZ 40404 2820 9 somewhat somewhat RB 40404 2820 10 recent recent JJ 40404 2820 11 . . . 40404 2821 1 Others other NNS 40404 2821 2 , , , 40404 2821 3 as as IN 40404 2821 4 those those DT 40404 2821 5 of of IN 40404 2821 6 Nevada Nevada NNP 40404 2821 7 , , , 40404 2821 8 are be VBP 40404 2821 9 so so RB 40404 2821 10 old old JJ 40404 2821 11 that that IN 40404 2821 12 they -PRON- PRP 40404 2821 13 have have VBP 40404 2821 14 been be VBN 40404 2821 15 deeply deeply RB 40404 2821 16 dissected dissect VBN 40404 2821 17 ; ; : 40404 2821 18 their -PRON- PRP$ 40404 2821 19 original original JJ 40404 2821 20 form form NN 40404 2821 21 has have VBZ 40404 2821 22 been be VBN 40404 2821 23 destroyed destroy VBN 40404 2821 24 by by IN 40404 2821 25 erosion erosion NN 40404 2821 26 , , , 40404 2821 27 and and CC 40404 2821 28 the the DT 40404 2821 29 intermontane intermontane NN 40404 2821 30 depressions depression NNS 40404 2821 31 are be VBP 40404 2821 32 occupied occupy VBN 40404 2821 33 by by IN 40404 2821 34 wide wide JJ 40404 2821 35 plains plain NNS 40404 2821 36 of of IN 40404 2821 37 waste waste NN 40404 2821 38 . . . 40404 2822 1 = = NFP 40404 2822 2 Dislocations dislocation NNS 40404 2822 3 and and CC 40404 2822 4 river river NN 40404 2822 5 valleys.= valleys.= NNS 40404 2822 6 Before before IN 40404 2822 7 geologists geologist NNS 40404 2822 8 had have VBD 40404 2822 9 proved prove VBN 40404 2822 10 that that IN 40404 2822 11 rivers river NNS 40404 2822 12 can can MD 40404 2822 13 by by IN 40404 2822 14 their -PRON- PRP$ 40404 2822 15 own own JJ 40404 2822 16 unaided unaided JJ 40404 2822 17 efforts effort NNS 40404 2822 18 cut cut VBD 40404 2822 19 deep deep JJ 40404 2822 20 canyons canyon NNS 40404 2822 21 , , , 40404 2822 22 it -PRON- PRP 40404 2822 23 was be VBD 40404 2822 24 common common JJ 40404 2822 25 to to TO 40404 2822 26 consider consider VB 40404 2822 27 any any DT 40404 2822 28 narrow narrow JJ 40404 2822 29 gorge gorge NN 40404 2822 30 as as IN 40404 2822 31 a a DT 40404 2822 32 gaping gape VBG 40404 2822 33 fissure fissure NN 40404 2822 34 of of IN 40404 2822 35 the the DT 40404 2822 36 crust crust NN 40404 2822 37 . . . 40404 2823 1 This this DT 40404 2823 2 crude crude JJ 40404 2823 3 view view NN 40404 2823 4 has have VBZ 40404 2823 5 long long RB 40404 2823 6 since since RB 40404 2823 7 been be VBN 40404 2823 8 set set VBN 40404 2823 9 aside aside RB 40404 2823 10 . . . 40404 2824 1 A a DT 40404 2824 2 map map NN 40404 2824 3 of of IN 40404 2824 4 the the DT 40404 2824 5 plateaus plateaus NN 40404 2824 6 of of IN 40404 2824 7 northern northern JJ 40404 2824 8 Arizona Arizona NNP 40404 2824 9 shows show VBZ 40404 2824 10 how how WRB 40404 2824 11 independent independent JJ 40404 2824 12 of of IN 40404 2824 13 the the DT 40404 2824 14 immense immense JJ 40404 2824 15 faults fault NNS 40404 2824 16 of of IN 40404 2824 17 the the DT 40404 2824 18 region region NN 40404 2824 19 is be VBZ 40404 2824 20 the the DT 40404 2824 21 course course NN 40404 2824 22 of of IN 40404 2824 23 the the DT 40404 2824 24 Colorado Colorado NNP 40404 2824 25 River River NNP 40404 2824 26 . . . 40404 2825 1 In in IN 40404 2825 2 the the DT 40404 2825 3 Alps Alps NNP 40404 2825 4 the the DT 40404 2825 5 tunnels tunnel NNS 40404 2825 6 on on IN 40404 2825 7 the the DT 40404 2825 8 Saint Saint NNP 40404 2825 9 Gotthard Gotthard NNP 40404 2825 10 railway railway NN 40404 2825 11 pass pass VBP 40404 2825 12 six six CD 40404 2825 13 times time NNS 40404 2825 14 beneath beneath IN 40404 2825 15 the the DT 40404 2825 16 gorge gorge NN 40404 2825 17 of of IN 40404 2825 18 the the DT 40404 2825 19 Reuss Reuss NNPS 40404 2825 20 , , , 40404 2825 21 but but CC 40404 2825 22 at at IN 40404 2825 23 no no DT 40404 2825 24 point point NN 40404 2825 25 do do VBP 40404 2825 26 the the DT 40404 2825 27 rocks rock NNS 40404 2825 28 show show VB 40404 2825 29 the the DT 40404 2825 30 slightest slight JJS 40404 2825 31 trace trace NN 40404 2825 32 of of IN 40404 2825 33 a a DT 40404 2825 34 fault fault NN 40404 2825 35 . . . 40404 2826 1 [ [ -LRB- 40404 2826 2 Illustration illustration NN 40404 2826 3 : : : 40404 2826 4 Fig Fig NNP 40404 2826 5 . . . 40404 2827 1 192 192 CD 40404 2827 2 . . . 40404 2828 1 Fault Fault NNP 40404 2828 2 crossing cross VBG 40404 2828 3 Valley Valley NNP 40404 2828 4 in in IN 40404 2828 5 Japan Japan NNP 40404 2828 6 ] ] -RRB- 40404 2828 7 = = NFP 40404 2828 8 Rate rate NN 40404 2828 9 of of IN 40404 2828 10 dislocation.= dislocation.= NNS 40404 2828 11 So so RB 40404 2828 12 far far RB 40404 2828 13 as as IN 40404 2828 14 human human JJ 40404 2828 15 experience experience NN 40404 2828 16 goes go VBZ 40404 2828 17 , , , 40404 2828 18 the the DT 40404 2828 19 earth earth NN 40404 2828 20 movements movement NNS 40404 2828 21 which which WDT 40404 2828 22 we -PRON- PRP 40404 2828 23 have have VBP 40404 2828 24 just just RB 40404 2828 25 studied study VBN 40404 2828 26 , , , 40404 2828 27 some some DT 40404 2828 28 of of IN 40404 2828 29 which which WDT 40404 2828 30 have have VBP 40404 2828 31 produced produce VBN 40404 2828 32 deep deep RB 40404 2828 33 - - HYPH 40404 2828 34 sunk sink VBN 40404 2828 35 valleys valley NNS 40404 2828 36 and and CC 40404 2828 37 lofty lofty JJ 40404 2828 38 mountain mountain NN 40404 2828 39 ranges range NNS 40404 2828 40 , , , 40404 2828 41 and and CC 40404 2828 42 faults fault NNS 40404 2828 43 whose whose WP$ 40404 2828 44 throw throw VBP 40404 2828 45 is be VBZ 40404 2828 46 to to TO 40404 2828 47 be be VB 40404 2828 48 measured measure VBN 40404 2828 49 in in IN 40404 2828 50 thousands thousand NNS 40404 2828 51 of of IN 40404 2828 52 feet foot NNS 40404 2828 53 , , , 40404 2828 54 are be VBP 40404 2828 55 slow slow JJ 40404 2828 56 and and CC 40404 2828 57 gradual gradual JJ 40404 2828 58 . . . 40404 2829 1 They -PRON- PRP 40404 2829 2 are be VBP 40404 2829 3 not not RB 40404 2829 4 accomplished accomplish VBN 40404 2829 5 by by IN 40404 2829 6 a a DT 40404 2829 7 single single JJ 40404 2829 8 paroxysmal paroxysmal JJ 40404 2829 9 effort effort NN 40404 2829 10 , , , 40404 2829 11 but but CC 40404 2829 12 by by IN 40404 2829 13 slow slow JJ 40404 2829 14 creep creep NN 40404 2829 15 and and CC 40404 2829 16 a a DT 40404 2829 17 series series NN 40404 2829 18 of of IN 40404 2829 19 slight slight JJ 40404 2829 20 slips slip NNS 40404 2829 21 continued continue VBN 40404 2829 22 for for IN 40404 2829 23 vast vast JJ 40404 2829 24 lengths length NNS 40404 2829 25 of of IN 40404 2829 26 time time NN 40404 2829 27 . . . 40404 2830 1 In in IN 40404 2830 2 the the DT 40404 2830 3 Aspen Aspen NNP 40404 2830 4 mining mining NN 40404 2830 5 district district NN 40404 2830 6 in in IN 40404 2830 7 Colorado Colorado NNP 40404 2830 8 faulting faulting NN 40404 2830 9 is be VBZ 40404 2830 10 now now RB 40404 2830 11 going go VBG 40404 2830 12 on on RP 40404 2830 13 at at IN 40404 2830 14 a a DT 40404 2830 15 comparatively comparatively RB 40404 2830 16 rapid rapid JJ 40404 2830 17 rate rate NN 40404 2830 18 . . . 40404 2831 1 Although although IN 40404 2831 2 no no DT 40404 2831 3 sudden sudden JJ 40404 2831 4 slips slip NNS 40404 2831 5 take take VBP 40404 2831 6 place place NN 40404 2831 7 , , , 40404 2831 8 the the DT 40404 2831 9 creep creep NN 40404 2831 10 of of IN 40404 2831 11 the the DT 40404 2831 12 rock rock NN 40404 2831 13 along along IN 40404 2831 14 certain certain JJ 40404 2831 15 planes plane NNS 40404 2831 16 of of IN 40404 2831 17 faulting faulting NN 40404 2831 18 gradually gradually RB 40404 2831 19 bends bend VBZ 40404 2831 20 out out IN 40404 2831 21 of of IN 40404 2831 22 shape shape NN 40404 2831 23 the the DT 40404 2831 24 square square JJ 40404 2831 25 - - HYPH 40404 2831 26 set set VBN 40404 2831 27 timbers timber NNS 40404 2831 28 in in IN 40404 2831 29 horizontal horizontal JJ 40404 2831 30 drifts drift NNS 40404 2831 31 and and CC 40404 2831 32 has have VBZ 40404 2831 33 closed close VBN 40404 2831 34 some some DT 40404 2831 35 vertical vertical JJ 40404 2831 36 shafts shaft NNS 40404 2831 37 by by IN 40404 2831 38 shifting shift VBG 40404 2831 39 the the DT 40404 2831 40 upper upper JJ 40404 2831 41 portion portion NN 40404 2831 42 across across IN 40404 2831 43 the the DT 40404 2831 44 lower low JJR 40404 2831 45 . . . 40404 2832 1 Along along IN 40404 2832 2 one one CD 40404 2832 3 of of IN 40404 2832 4 the the DT 40404 2832 5 faults fault NNS 40404 2832 6 of of IN 40404 2832 7 this this DT 40404 2832 8 region region NN 40404 2832 9 it -PRON- PRP 40404 2832 10 is be VBZ 40404 2832 11 estimated estimate VBN 40404 2832 12 that that IN 40404 2832 13 there there EX 40404 2832 14 has have VBZ 40404 2832 15 been be VBN 40404 2832 16 a a DT 40404 2832 17 movement movement NN 40404 2832 18 of of IN 40404 2832 19 at at RB 40404 2832 20 least least JJS 40404 2832 21 four four CD 40404 2832 22 hundred hundred CD 40404 2832 23 feet foot NNS 40404 2832 24 since since IN 40404 2832 25 the the DT 40404 2832 26 Glacial Glacial NNP 40404 2832 27 epoch epoch NN 40404 2832 28 . . . 40404 2833 1 More more RBR 40404 2833 2 conspicuous conspicuous JJ 40404 2833 3 are be VBP 40404 2833 4 the the DT 40404 2833 5 instances instance NNS 40404 2833 6 of of IN 40404 2833 7 active active JJ 40404 2833 8 faulting faulting NN 40404 2833 9 by by IN 40404 2833 10 means mean NNS 40404 2833 11 of of IN 40404 2833 12 sudden sudden JJ 40404 2833 13 slips slip NNS 40404 2833 14 . . . 40404 2834 1 In in IN 40404 2834 2 1891 1891 CD 40404 2834 3 there there RB 40404 2834 4 occurred occur VBD 40404 2834 5 along along IN 40404 2834 6 an an DT 40404 2834 7 old old JJ 40404 2834 8 fault fault NN 40404 2834 9 plane plane NN 40404 2834 10 in in IN 40404 2834 11 Japan Japan NNP 40404 2834 12 a a DT 40404 2834 13 slip slip NN 40404 2834 14 which which WDT 40404 2834 15 produced produce VBD 40404 2834 16 an an DT 40404 2834 17 earth earth NN 40404 2834 18 rent rent NN 40404 2834 19 traced trace VBN 40404 2834 20 for for IN 40404 2834 21 fifty fifty CD 40404 2834 22 miles mile NNS 40404 2834 23 ( ( -LRB- 40404 2834 24 Fig fig NN 40404 2834 25 . . . 40404 2835 1 192 192 CD 40404 2835 2 ) ) -RRB- 40404 2835 3 . . . 40404 2836 1 The the DT 40404 2836 2 country country NN 40404 2836 3 on on IN 40404 2836 4 one one CD 40404 2836 5 side side NN 40404 2836 6 was be VBD 40404 2836 7 depressed depress VBN 40404 2836 8 in in IN 40404 2836 9 places place NNS 40404 2836 10 twenty twenty CD 40404 2836 11 feet foot NNS 40404 2836 12 below below IN 40404 2836 13 that that DT 40404 2836 14 on on IN 40404 2836 15 the the DT 40404 2836 16 other other JJ 40404 2836 17 , , , 40404 2836 18 and and CC 40404 2836 19 also also RB 40404 2836 20 shifted shift VBD 40404 2836 21 as as RB 40404 2836 22 much much JJ 40404 2836 23 as as IN 40404 2836 24 thirteen thirteen CD 40404 2836 25 feet foot NNS 40404 2836 26 horizontally horizontally RB 40404 2836 27 in in IN 40404 2836 28 the the DT 40404 2836 29 direction direction NN 40404 2836 30 of of IN 40404 2836 31 the the DT 40404 2836 32 fault fault NN 40404 2836 33 line line NN 40404 2836 34 . . . 40404 2837 1 In in IN 40404 2837 2 1872 1872 CD 40404 2837 3 a a DT 40404 2837 4 slip slip NN 40404 2837 5 occurred occur VBD 40404 2837 6 for for IN 40404 2837 7 forty forty CD 40404 2837 8 miles mile NNS 40404 2837 9 on on IN 40404 2837 10 the the DT 40404 2837 11 great great JJ 40404 2837 12 line line NN 40404 2837 13 of of IN 40404 2837 14 dislocation dislocation NN 40404 2837 15 which which WDT 40404 2837 16 runs run VBZ 40404 2837 17 along along IN 40404 2837 18 the the DT 40404 2837 19 eastern eastern JJ 40404 2837 20 base base NN 40404 2837 21 of of IN 40404 2837 22 the the DT 40404 2837 23 Sierra Sierra NNP 40404 2837 24 Nevada Nevada NNP 40404 2837 25 Mountains Mountains NNPS 40404 2837 26 . . . 40404 2838 1 In in IN 40404 2838 2 the the DT 40404 2838 3 Owens Owens NNP 40404 2838 4 valley valley NN 40404 2838 5 , , , 40404 2838 6 California California NNP 40404 2838 7 , , , 40404 2838 8 the the DT 40404 2838 9 throw throw NN 40404 2838 10 amounted amount VBD 40404 2838 11 to to IN 40404 2838 12 twenty twenty CD 40404 2838 13 - - HYPH 40404 2838 14 five five CD 40404 2838 15 feet foot NNS 40404 2838 16 in in IN 40404 2838 17 places place NNS 40404 2838 18 , , , 40404 2838 19 with with IN 40404 2838 20 a a DT 40404 2838 21 horizontal horizontal JJ 40404 2838 22 movement movement NN 40404 2838 23 along along IN 40404 2838 24 the the DT 40404 2838 25 fault fault NN 40404 2838 26 line line NN 40404 2838 27 of of IN 40404 2838 28 as as RB 40404 2838 29 much much JJ 40404 2838 30 as as IN 40404 2838 31 eighteen eighteen CD 40404 2838 32 feet foot NNS 40404 2838 33 . . . 40404 2839 1 Both both DT 40404 2839 2 this this DT 40404 2839 3 slip slip NN 40404 2839 4 and and CC 40404 2839 5 that that IN 40404 2839 6 in in IN 40404 2839 7 Japan Japan NNP 40404 2839 8 just just RB 40404 2839 9 mentioned mention VBD 40404 2839 10 caused cause VBD 40404 2839 11 severe severe JJ 40404 2839 12 earthquakes earthquake NNS 40404 2839 13 . . . 40404 2840 1 For for IN 40404 2840 2 the the DT 40404 2840 3 sake sake NN 40404 2840 4 of of IN 40404 2840 5 clearness clearness NN 40404 2840 6 we -PRON- PRP 40404 2840 7 have have VBP 40404 2840 8 described describe VBN 40404 2840 9 oscillations oscillation NNS 40404 2840 10 , , , 40404 2840 11 foldings folding NNS 40404 2840 12 , , , 40404 2840 13 and and CC 40404 2840 14 fractures fracture NNS 40404 2840 15 of of IN 40404 2840 16 the the DT 40404 2840 17 crust crust NN 40404 2840 18 as as IN 40404 2840 19 separate separate JJ 40404 2840 20 processes process NNS 40404 2840 21 , , , 40404 2840 22 each each DT 40404 2840 23 giving give VBG 40404 2840 24 rise rise NN 40404 2840 25 to to IN 40404 2840 26 its -PRON- PRP$ 40404 2840 27 own own JJ 40404 2840 28 peculiar peculiar JJ 40404 2840 29 surface surface NN 40404 2840 30 features feature NNS 40404 2840 31 , , , 40404 2840 32 but but CC 40404 2840 33 in in IN 40404 2840 34 nature nature NN 40404 2840 35 earth earth NN 40404 2840 36 movements movement NNS 40404 2840 37 are be VBP 40404 2840 38 by by IN 40404 2840 39 no no DT 40404 2840 40 means means NN 40404 2840 41 so so RB 40404 2840 42 simple,--they simple,--they PRP 40404 2840 43 are be VBP 40404 2840 44 often often RB 40404 2840 45 implicated implicate VBN 40404 2840 46 with with IN 40404 2840 47 one one CD 40404 2840 48 another another DT 40404 2840 49 : : : 40404 2840 50 folds fold NNS 40404 2840 51 pass pass VBP 40404 2840 52 into into IN 40404 2840 53 faults fault NNS 40404 2840 54 ; ; : 40404 2840 55 in in IN 40404 2840 56 a a DT 40404 2840 57 deformed deform VBN 40404 2840 58 region region NN 40404 2840 59 certain certain JJ 40404 2840 60 rocks rock NNS 40404 2840 61 have have VBP 40404 2840 62 bent bend VBN 40404 2840 63 , , , 40404 2840 64 while while IN 40404 2840 65 others other NNS 40404 2840 66 under under IN 40404 2840 67 the the DT 40404 2840 68 same same JJ 40404 2840 69 strain strain NN 40404 2840 70 , , , 40404 2840 71 but but CC 40404 2840 72 under under IN 40404 2840 73 different different JJ 40404 2840 74 conditions condition NNS 40404 2840 75 of of IN 40404 2840 76 plasticity plasticity NN 40404 2840 77 and and CC 40404 2840 78 load load NN 40404 2840 79 , , , 40404 2840 80 have have VBP 40404 2840 81 broken break VBN 40404 2840 82 ; ; : 40404 2840 83 folded fold VBN 40404 2840 84 mountains mountain NNS 40404 2840 85 have have VBP 40404 2840 86 been be VBN 40404 2840 87 worn wear VBN 40404 2840 88 to to IN 40404 2840 89 their -PRON- PRP$ 40404 2840 90 roots root NNS 40404 2840 91 , , , 40404 2840 92 and and CC 40404 2840 93 the the DT 40404 2840 94 peneplains peneplain NNS 40404 2840 95 to to TO 40404 2840 96 which which WDT 40404 2840 97 they -PRON- PRP 40404 2840 98 have have VBP 40404 2840 99 been be VBN 40404 2840 100 denuded denude VBN 40404 2840 101 have have VBP 40404 2840 102 been be VBN 40404 2840 103 upwarped upwarpe VBN 40404 2840 104 to to IN 40404 2840 105 mountain mountain NN 40404 2840 106 height height NN 40404 2840 107 and and CC 40404 2840 108 afterwards afterwards RB 40404 2840 109 dissected,--as dissected,--as UH 40404 2840 110 in in IN 40404 2840 111 the the DT 40404 2840 112 case case NN 40404 2840 113 of of IN 40404 2840 114 the the DT 40404 2840 115 Allegheny Allegheny NNP 40404 2840 116 ridges ridge NNS 40404 2840 117 , , , 40404 2840 118 the the DT 40404 2840 119 southern southern JJ 40404 2840 120 Carpathians Carpathians NNPS 40404 2840 121 , , , 40404 2840 122 and and CC 40404 2840 123 other other JJ 40404 2840 124 ranges,--or ranges,--or NN 40404 2840 125 , , , 40404 2840 126 as as IN 40404 2840 127 in in IN 40404 2840 128 the the DT 40404 2840 129 case case NN 40404 2840 130 of of IN 40404 2840 131 the the DT 40404 2840 132 Sierra Sierra NNP 40404 2840 133 Nevada Nevada NNP 40404 2840 134 Mountains Mountains NNPS 40404 2840 135 , , , 40404 2840 136 have have VBP 40404 2840 137 been be VBN 40404 2840 138 broken break VBN 40404 2840 139 and and CC 40404 2840 140 uplifted uplifted JJ 40404 2840 141 as as IN 40404 2840 142 mountains mountain NNS 40404 2840 143 of of IN 40404 2840 144 fracture fracture NN 40404 2840 145 . . . 40404 2841 1 Draw draw VB 40404 2841 2 the the DT 40404 2841 3 following follow VBG 40404 2841 4 diagrams diagram NNS 40404 2841 5 , , , 40404 2841 6 being be VBG 40404 2841 7 careful careful JJ 40404 2841 8 to to TO 40404 2841 9 show show VB 40404 2841 10 the the DT 40404 2841 11 direction direction NN 40404 2841 12 in in IN 40404 2841 13 which which WDT 40404 2841 14 the the DT 40404 2841 15 faulted fault VBN 40404 2841 16 blocks block NNS 40404 2841 17 have have VBP 40404 2841 18 moved move VBN 40404 2841 19 , , , 40404 2841 20 by by IN 40404 2841 21 the the DT 40404 2841 22 position position NN 40404 2841 23 of of IN 40404 2841 24 the the DT 40404 2841 25 two two CD 40404 2841 26 parts part NNS 40404 2841 27 of of IN 40404 2841 28 some some DT 40404 2841 29 well well RB 40404 2841 30 - - HYPH 40404 2841 31 defined define VBN 40404 2841 32 layer layer NN 40404 2841 33 of of IN 40404 2841 34 limestone limestone NN 40404 2841 35 , , , 40404 2841 36 sandstone sandstone NN 40404 2841 37 , , , 40404 2841 38 or or CC 40404 2841 39 shale shale NNP 40404 2841 40 , , , 40404 2841 41 which which WDT 40404 2841 42 occurs occur VBZ 40404 2841 43 on on IN 40404 2841 44 each each DT 40404 2841 45 side side NN 40404 2841 46 of of IN 40404 2841 47 the the DT 40404 2841 48 fault fault NN 40404 2841 49 plane plane NN 40404 2841 50 , , , 40404 2841 51 as as IN 40404 2841 52 in in IN 40404 2841 53 Figure Figure NNP 40404 2841 54 184 184 CD 40404 2841 55 . . . 40404 2842 1 1 1 LS 40404 2842 2 . . . 40404 2843 1 A a DT 40404 2843 2 normal normal JJ 40404 2843 3 fault fault NN 40404 2843 4 with with IN 40404 2843 5 a a DT 40404 2843 6 hade hade NN 40404 2843 7 of of IN 40404 2843 8 15 15 CD 40404 2843 9 ° ° NNS 40404 2843 10 , , , 40404 2843 11 the the DT 40404 2843 12 original original JJ 40404 2843 13 fault fault NN 40404 2843 14 scarp scarp NN 40404 2843 15 remaining remain VBG 40404 2843 16 . . . 40404 2844 1 2 2 LS 40404 2844 2 . . . 40404 2845 1 A a DT 40404 2845 2 normal normal JJ 40404 2845 3 fault fault NN 40404 2845 4 with with IN 40404 2845 5 a a DT 40404 2845 6 hade hade NN 40404 2845 7 of of IN 40404 2845 8 50 50 CD 40404 2845 9 ° ° NNS 40404 2845 10 , , , 40404 2845 11 the the DT 40404 2845 12 original original JJ 40404 2845 13 fault fault NN 40404 2845 14 scarp scarp NN 40404 2845 15 worn wear VBN 40404 2845 16 away away RP 40404 2845 17 , , , 40404 2845 18 showing show VBG 40404 2845 19 cliffs cliff NNS 40404 2845 20 caused cause VBN 40404 2845 21 by by IN 40404 2845 22 harder hard JJR 40404 2845 23 strata strata NN 40404 2845 24 on on IN 40404 2845 25 the the DT 40404 2845 26 downthrow downthrow NN 40404 2845 27 side side NN 40404 2845 28 . . . 40404 2846 1 3 3 LS 40404 2846 2 . . . 40404 2847 1 A a DT 40404 2847 2 thrust thrust JJ 40404 2847 3 fault fault NN 40404 2847 4 with with IN 40404 2847 5 a a DT 40404 2847 6 hade hade NN 40404 2847 7 of of IN 40404 2847 8 30 30 CD 40404 2847 9 ° ° NNS 40404 2847 10 , , , 40404 2847 11 showing show VBG 40404 2847 12 cliffs cliff NNS 40404 2847 13 due due IN 40404 2847 14 to to IN 40404 2847 15 harder hard JJR 40404 2847 16 strata strata NN 40404 2847 17 outcropping outcrop VBG 40404 2847 18 on on IN 40404 2847 19 the the DT 40404 2847 20 downthrow downthrow NN 40404 2847 21 . . . 40404 2848 1 4 4 LS 40404 2848 2 . . . 40404 2849 1 A a DT 40404 2849 2 thrust thrust JJ 40404 2849 3 fault fault NN 40404 2849 4 with with IN 40404 2849 5 a a DT 40404 2849 6 hade hade NN 40404 2849 7 of of IN 40404 2849 8 80 80 CD 40404 2849 9 ° ° NNS 40404 2849 10 , , , 40404 2849 11 with with IN 40404 2849 12 surface surface NN 40404 2849 13 baseleveled baselevele VBN 40404 2849 14 . . . 40404 2850 1 5 5 CD 40404 2850 2 . . . 40404 2851 1 In in IN 40404 2851 2 a a DT 40404 2851 3 region region NN 40404 2851 4 of of IN 40404 2851 5 normal normal JJ 40404 2851 6 faults fault NNS 40404 2851 7 a a DT 40404 2851 8 coal coal NN 40404 2851 9 mine mine NN 40404 2851 10 is be VBZ 40404 2851 11 being be VBG 40404 2851 12 worked work VBN 40404 2851 13 along along IN 40404 2851 14 the the DT 40404 2851 15 seam seam NN 40404 2851 16 of of IN 40404 2851 17 coal coal NN 40404 2851 18 _ _ NNP 40404 2851 19 AB AB NNP 40404 2851 20 _ _ NNP 40404 2851 21 ( ( -LRB- 40404 2851 22 Fig Fig NNP 40404 2851 23 . . . 40404 2852 1 193 193 CD 40404 2852 2 ) ) -RRB- 40404 2852 3 . . . 40404 2853 1 At at IN 40404 2853 2 _ _ NNP 40404 2853 3 B B NNP 40404 2853 4 _ _ NNP 40404 2853 5 it -PRON- PRP 40404 2853 6 is be VBZ 40404 2853 7 found find VBN 40404 2853 8 broken break VBN 40404 2853 9 by by IN 40404 2853 10 a a DT 40404 2853 11 fault fault NN 40404 2853 12 f f NN 40404 2853 13 which which WDT 40404 2853 14 hades hade VBZ 40404 2853 15 toward toward IN 40404 2853 16 _ _ NNP 40404 2853 17 A A NNP 40404 2853 18 _ _ NNP 40404 2853 19 . . . 40404 2854 1 To to TO 40404 2854 2 find find VB 40404 2854 3 the the DT 40404 2854 4 seam seam NN 40404 2854 5 again again RB 40404 2854 6 , , , 40404 2854 7 should should MD 40404 2854 8 you -PRON- PRP 40404 2854 9 advise advise VB 40404 2854 10 tunneling tunnel VBG 40404 2854 11 up up RP 40404 2854 12 or or CC 40404 2854 13 down down RB 40404 2854 14 from from IN 40404 2854 15 _ _ NNP 40404 2854 16 B B NNP 40404 2854 17 _ _ NNP 40404 2854 18 ? ? . 40404 2855 1 [ [ -LRB- 40404 2855 2 Illustration illustration NN 40404 2855 3 : : : 40404 2855 4 Fig Fig NNP 40404 2855 5 . . . 40404 2856 1 193 193 CD 40404 2856 2 ] ] -RRB- 40404 2856 3 6 6 CD 40404 2856 4 . . . 40404 2857 1 In in IN 40404 2857 2 a a DT 40404 2857 3 vertical vertical JJ 40404 2857 4 shaft shaft NN 40404 2857 5 of of IN 40404 2857 6 a a DT 40404 2857 7 coal coal NN 40404 2857 8 mine mine NN 40404 2857 9 the the DT 40404 2857 10 same same JJ 40404 2857 11 bed bed NN 40404 2857 12 of of IN 40404 2857 13 coal coal NN 40404 2857 14 is be VBZ 40404 2857 15 pierced pierce VBN 40404 2857 16 twice twice RB 40404 2857 17 at at IN 40404 2857 18 different different JJ 40404 2857 19 levels level NNS 40404 2857 20 because because IN 40404 2857 21 of of IN 40404 2857 22 a a DT 40404 2857 23 fault fault NN 40404 2857 24 . . . 40404 2858 1 Draw draw VB 40404 2858 2 a a DT 40404 2858 3 diagram diagram NN 40404 2858 4 to to TO 40404 2858 5 show show VB 40404 2858 6 whether whether IN 40404 2858 7 the the DT 40404 2858 8 fault fault NN 40404 2858 9 is be VBZ 40404 2858 10 normal normal JJ 40404 2858 11 or or CC 40404 2858 12 a a DT 40404 2858 13 thrust thrust NN 40404 2858 14 . . . 40404 2859 1 [ [ -LRB- 40404 2859 2 Illustration illustration NN 40404 2859 3 : : : 40404 2859 4 Fig Fig NNP 40404 2859 5 . . . 40404 2860 1 194 194 CD 40404 2860 2 . . . 40404 2861 1 Ridges ridge NNS 40404 2861 2 to to TO 40404 2861 3 be be VB 40404 2861 4 explained explain VBN 40404 2861 5 by by IN 40404 2861 6 Faulting faulting NN 40404 2861 7 ] ] -RRB- 40404 2861 8 7 7 CD 40404 2861 9 . . . 40404 2862 1 Copy copy VB 40404 2862 2 the the DT 40404 2862 3 diagram diagram NN 40404 2862 4 in in IN 40404 2862 5 Figure Figure NNP 40404 2862 6 194 194 CD 40404 2862 7 , , , 40404 2862 8 showing show VBG 40404 2862 9 how how WRB 40404 2862 10 the the DT 40404 2862 11 two two CD 40404 2862 12 ridges ridge NNS 40404 2862 13 may may MD 40404 2862 14 be be VB 40404 2862 15 accounted account VBN 40404 2862 16 for for IN 40404 2862 17 by by IN 40404 2862 18 a a DT 40404 2862 19 single single JJ 40404 2862 20 resistant resistant JJ 40404 2862 21 stratum stratum NN 40404 2862 22 dislocated dislocate VBN 40404 2862 23 by by IN 40404 2862 24 a a DT 40404 2862 25 fault fault NN 40404 2862 26 . . . 40404 2863 1 Is be VBZ 40404 2863 2 the the DT 40404 2863 3 fault fault NN 40404 2863 4 a a DT 40404 2863 5 _ _ NNP 40404 2863 6 strike strike NN 40404 2863 7 fault fault NN 40404 2863 8 _ _ NNP 40404 2863 9 , , , 40404 2863 10 i.e. i.e. FW 40404 2864 1 one one CD 40404 2864 2 running run VBG 40404 2864 3 parallel parallel NN 40404 2864 4 with with IN 40404 2864 5 the the DT 40404 2864 6 strike strike NN 40404 2864 7 of of IN 40404 2864 8 the the DT 40404 2864 9 strata strata NN 40404 2864 10 , , , 40404 2864 11 or or CC 40404 2864 12 a a DT 40404 2864 13 _ _ NNP 40404 2864 14 dip dip NN 40404 2864 15 fault fault NN 40404 2864 16 _ _ NNP 40404 2864 17 , , , 40404 2864 18 one one CD 40404 2864 19 running run VBG 40404 2864 20 parallel parallel NN 40404 2864 21 with with IN 40404 2864 22 the the DT 40404 2864 23 direction direction NN 40404 2864 24 of of IN 40404 2864 25 the the DT 40404 2864 26 dip dip NN 40404 2864 27 ? ? . 40404 2865 1 [ [ -LRB- 40404 2865 2 Illustration illustration NN 40404 2865 3 : : : 40404 2865 4 Fig Fig NNP 40404 2865 5 . . . 40404 2866 1 195 195 CD 40404 2866 2 . . . 40404 2867 1 Earth Earth NNP 40404 2867 2 Block Block NNP 40404 2867 3 of of IN 40404 2867 4 Tilted Tilted NNP 40404 2867 5 Strata Strata NNP 40404 2867 6 , , , 40404 2867 7 with with IN 40404 2867 8 Included include VBN 40404 2867 9 Seam Seam NNP 40404 2867 10 of of IN 40404 2867 11 Coal Coal NNP 40404 2867 12 _ _ NNP 40404 2867 13 cc cc NNP 40404 2867 14 _ _ NNP 40404 2867 15 ] ] -RRB- 40404 2867 16 8 8 CD 40404 2867 17 . . . 40404 2868 1 Draw draw VB 40404 2868 2 a a DT 40404 2868 3 diagram diagram NN 40404 2868 4 of of IN 40404 2868 5 the the DT 40404 2868 6 block block NN 40404 2868 7 in in IN 40404 2868 8 Figure Figure NNP 40404 2868 9 195 195 CD 40404 2868 10 as as IN 40404 2868 11 it -PRON- PRP 40404 2868 12 would would MD 40404 2868 13 appear appear VB 40404 2868 14 if if IN 40404 2868 15 dislocated dislocate VBN 40404 2868 16 along along IN 40404 2868 17 the the DT 40404 2868 18 plane plane NN 40404 2868 19 _ _ NNP 40404 2868 20 efg efg JJ 40404 2868 21 _ _ NNP 40404 2868 22 by by IN 40404 2868 23 a a DT 40404 2868 24 normal normal JJ 40404 2868 25 fault fault NN 40404 2868 26 whose whose WP$ 40404 2868 27 throw throw NN 40404 2868 28 equals equal VBZ 40404 2868 29 one one CD 40404 2868 30 fourth fourth JJ 40404 2868 31 the the DT 40404 2868 32 height height NN 40404 2868 33 of of IN 40404 2868 34 the the DT 40404 2868 35 block block NN 40404 2868 36 . . . 40404 2869 1 Is be VBZ 40404 2869 2 the the DT 40404 2869 3 fault fault NN 40404 2869 4 a a DT 40404 2869 5 strike strike NN 40404 2869 6 or or CC 40404 2869 7 a a DT 40404 2869 8 dip dip NN 40404 2869 9 fault fault NN 40404 2869 10 ? ? . 40404 2870 1 Draw draw VB 40404 2870 2 a a DT 40404 2870 3 second second JJ 40404 2870 4 diagram diagram NN 40404 2870 5 showing show VBG 40404 2870 6 the the DT 40404 2870 7 same same JJ 40404 2870 8 block block NN 40404 2870 9 after after IN 40404 2870 10 denudation denudation NN 40404 2870 11 has have VBZ 40404 2870 12 worn wear VBN 40404 2870 13 it -PRON- PRP 40404 2870 14 down down RP 40404 2870 15 below below IN 40404 2870 16 the the DT 40404 2870 17 center center NN 40404 2870 18 of of IN 40404 2870 19 the the DT 40404 2870 20 upthrown upthrown JJ 40404 2870 21 side side NN 40404 2870 22 . . . 40404 2871 1 Note note VB 40404 2871 2 that that IN 40404 2871 3 the the DT 40404 2871 4 outcrop outcrop NN 40404 2871 5 of of IN 40404 2871 6 the the DT 40404 2871 7 coal coal NN 40404 2871 8 seam seam NN 40404 2871 9 is be VBZ 40404 2871 10 now now RB 40404 2871 11 deceptively deceptively RB 40404 2871 12 repeated repeat VBN 40404 2871 13 . . . 40404 2872 1 This this DT 40404 2872 2 exercise exercise NN 40404 2872 3 may may MD 40404 2872 4 be be VB 40404 2872 5 done do VBN 40404 2872 6 in in IN 40404 2872 7 blocks block NNS 40404 2872 8 of of IN 40404 2872 9 wood wood NN 40404 2872 10 instead instead RB 40404 2872 11 of of IN 40404 2872 12 drawings drawing NNS 40404 2872 13 . . . 40404 2873 1 [ [ -LRB- 40404 2873 2 Illustration illustration NN 40404 2873 3 : : : 40404 2873 4 Fig Fig NNP 40404 2873 5 . . . 40404 2874 1 196 196 CD 40404 2874 2 . . . 40404 2875 1 _ _ NNP 40404 2875 2 A A NNP 40404 2875 3 _ _ NNP 40404 2875 4 and and CC 40404 2875 5 _ _ NNP 40404 2875 6 B B NNP 40404 2875 7 _ _ NNP 40404 2875 8 . . . 40404 2876 1 Repeated repeat VBN 40404 2876 2 Outcrops Outcrops NNPS 40404 2876 3 of of IN 40404 2876 4 Same Same NNP 40404 2876 5 Strata Strata NNP 40404 2876 6 ] ] -RRB- 40404 2876 7 9 9 CD 40404 2876 8 . . . 40404 2877 1 Draw draw VB 40404 2877 2 diagrams diagram NNS 40404 2877 3 showing show VBG 40404 2877 4 by by IN 40404 2877 5 dotted dotted JJ 40404 2877 6 lines line NNS 40404 2877 7 the the DT 40404 2877 8 conditions condition NNS 40404 2877 9 both both DT 40404 2877 10 of of IN 40404 2877 11 _ _ NNP 40404 2877 12 A A NNP 40404 2877 13 _ _ NNP 40404 2877 14 and and CC 40404 2877 15 _ _ NNP 40404 2877 16 B B NNP 40404 2877 17 _ _ NNP 40404 2877 18 , , , 40404 2877 19 Figure Figure NNP 40404 2877 20 196 196 CD 40404 2877 21 , , , 40404 2877 22 after after IN 40404 2877 23 deformation deformation NN 40404 2877 24 had have VBD 40404 2877 25 given give VBN 40404 2877 26 the the DT 40404 2877 27 strata strata NN 40404 2877 28 their -PRON- PRP$ 40404 2877 29 present present JJ 40404 2877 30 attitude attitude NN 40404 2877 31 . . . 40404 2878 1 [ [ -LRB- 40404 2878 2 Illustration illustration NN 40404 2878 3 : : : 40404 2878 4 Fig Fig NNP 40404 2878 5 . . . 40404 2879 1 197 197 CD 40404 2879 2 . . . 40404 2880 1 A a DT 40404 2880 2 Block Block NNP 40404 2880 3 Mountain Mountain NNP 40404 2880 4 ] ] -RRB- 40404 2880 5 10 10 CD 40404 2880 6 . . . 40404 2881 1 What what WP 40404 2881 2 is be VBZ 40404 2881 3 the the DT 40404 2881 4 attitude attitude NN 40404 2881 5 of of IN 40404 2881 6 the the DT 40404 2881 7 strata strata NN 40404 2881 8 of of IN 40404 2881 9 this this DT 40404 2881 10 earth earth NN 40404 2881 11 block block NN 40404 2881 12 , , , 40404 2881 13 Figure figure NN 40404 2881 14 197 197 CD 40404 2881 15 ? ? . 40404 2882 1 What what WP 40404 2882 2 has have VBZ 40404 2882 3 taken take VBN 40404 2882 4 place place NN 40404 2882 5 along along IN 40404 2882 6 the the DT 40404 2882 7 plane plane NN 40404 2882 8 _ _ NNP 40404 2882 9 baf baf VBD 40404 2882 10 _ _ NNP 40404 2882 11 ? ? . 40404 2883 1 When when WRB 40404 2883 2 did do VBD 40404 2883 3 the the DT 40404 2883 4 dislocation dislocation NN 40404 2883 5 occur occur VB 40404 2883 6 compared compare VBN 40404 2883 7 with with IN 40404 2883 8 the the DT 40404 2883 9 folding folding NN 40404 2883 10 of of IN 40404 2883 11 the the DT 40404 2883 12 strata strata NN 40404 2883 13 ? ? . 40404 2884 1 With with IN 40404 2884 2 the the DT 40404 2884 3 erosion erosion NN 40404 2884 4 of of IN 40404 2884 5 the the DT 40404 2884 6 valleys valley NNS 40404 2884 7 on on IN 40404 2884 8 the the DT 40404 2884 9 right right JJ 40404 2884 10 - - HYPH 40404 2884 11 hand hand NN 40404 2884 12 side side NN 40404 2884 13 of of IN 40404 2884 14 the the DT 40404 2884 15 mountain mountain NN 40404 2884 16 ? ? . 40404 2885 1 With with IN 40404 2885 2 the the DT 40404 2885 3 deposition deposition NN 40404 2885 4 of of IN 40404 2885 5 the the DT 40404 2885 6 sediments sediment NNS 40404 2885 7 _ _ NNP 40404 2885 8 efg efg JJ 40404 2885 9 _ _ NNP 40404 2885 10 ? ? . 40404 2886 1 Do do VBP 40404 2886 2 you -PRON- PRP 40404 2886 3 find find VB 40404 2886 4 any any DT 40404 2886 5 remnants remnant NNS 40404 2886 6 of of IN 40404 2886 7 the the DT 40404 2886 8 original original JJ 40404 2886 9 surface surface NN 40404 2886 10 _ _ NNP 40404 2886 11 baf baf NNP 40404 2886 12 _ _ NNP 40404 2886 13 produced produce VBN 40404 2886 14 by by IN 40404 2886 15 the the DT 40404 2886 16 dislocation dislocation NN 40404 2886 17 ? ? . 40404 2887 1 From from IN 40404 2887 2 the the DT 40404 2887 3 left left JJ 40404 2887 4 - - HYPH 40404 2887 5 hand hand NN 40404 2887 6 side side NN 40404 2887 7 of of IN 40404 2887 8 the the DT 40404 2887 9 mountain mountain NN 40404 2887 10 infer infer NN 40404 2887 11 what what WP 40404 2887 12 was be VBD 40404 2887 13 the the DT 40404 2887 14 relief relief NN 40404 2887 15 of of IN 40404 2887 16 the the DT 40404 2887 17 region region NN 40404 2887 18 before before IN 40404 2887 19 the the DT 40404 2887 20 dislocation dislocation NN 40404 2887 21 . . . 40404 2888 1 Give give VB 40404 2888 2 the the DT 40404 2888 3 complete complete JJ 40404 2888 4 history history NN 40404 2888 5 recorded record VBN 40404 2888 6 in in IN 40404 2888 7 the the DT 40404 2888 8 diagram diagram NN 40404 2888 9 from from IN 40404 2888 10 the the DT 40404 2888 11 deposition deposition NN 40404 2888 12 of of IN 40404 2888 13 the the DT 40404 2888 14 strata strata NN 40404 2888 15 to to IN 40404 2888 16 the the DT 40404 2888 17 present present NN 40404 2888 18 . . . 40404 2889 1 [ [ -LRB- 40404 2889 2 Illustration illustration NN 40404 2889 3 : : : 40404 2889 4 Fig Fig NNP 40404 2889 5 . . . 40404 2890 1 198 198 CD 40404 2890 2 . . . 40404 2891 1 A a DT 40404 2891 2 Faulted Faulted NNP 40404 2891 3 Lava Lava NNP 40404 2891 4 Flow Flow NNP 40404 2891 5 _ _ NNP 40404 2891 6 aa aa NNP 40404 2891 7 ´ ´ NNP 40404 2891 8 _ _ NNP 40404 2891 9 ] ] -RRB- 40404 2891 10 11 11 CD 40404 2891 11 . . . 40404 2892 1 Which which WDT 40404 2892 2 is be VBZ 40404 2892 3 the the DT 40404 2892 4 older old JJR 40404 2892 5 fault fault NN 40404 2892 6 , , , 40404 2892 7 in in IN 40404 2892 8 Figure Figure NNP 40404 2892 9 198 198 NNP 40404 2892 10 , , , 40404 2892 11 _ _ NNP 40404 2892 12 f f NNP 40404 2892 13 _ _ NNP 40404 2892 14 or or CC 40404 2892 15 _ _ NNP 40404 2892 16 f f NNP 40404 2892 17 ´ ´ NNP 40404 2892 18 _ _ NNP 40404 2892 19 ? ? . 40404 2893 1 When when WRB 40404 2893 2 did do VBD 40404 2893 3 the the DT 40404 2893 4 lava lava NN 40404 2893 5 flow flow NN 40404 2893 6 occur occur VB 40404 2893 7 ? ? . 40404 2894 1 How how WRB 40404 2894 2 long long RB 40404 2894 3 a a DT 40404 2894 4 time time NN 40404 2894 5 elapsed elapse VBN 40404 2894 6 between between IN 40404 2894 7 the the DT 40404 2894 8 formation formation NN 40404 2894 9 of of IN 40404 2894 10 the the DT 40404 2894 11 two two CD 40404 2894 12 faults fault NNS 40404 2894 13 as as IN 40404 2894 14 measured measure VBN 40404 2894 15 in in IN 40404 2894 16 the the DT 40404 2894 17 work work NN 40404 2894 18 done do VBN 40404 2894 19 in in IN 40404 2894 20 the the DT 40404 2894 21 interval interval NN 40404 2894 22 ? ? . 40404 2895 1 How how WRB 40404 2895 2 long long RB 40404 2895 3 a a DT 40404 2895 4 time time NN 40404 2895 5 since since IN 40404 2895 6 the the DT 40404 2895 7 formation formation NN 40404 2895 8 of of IN 40404 2895 9 the the DT 40404 2895 10 later later JJ 40404 2895 11 fault fault NN 40404 2895 12 ? ? . 40404 2896 1 [ [ -LRB- 40404 2896 2 Illustration illustration NN 40404 2896 3 : : : 40404 2896 4 Fig Fig NNP 40404 2896 5 . . . 40404 2897 1 199 199 CD 40404 2897 2 . . . 40404 2898 1 Measurement Measurement NNP 40404 2898 2 of of IN 40404 2898 3 the the DT 40404 2898 4 Thickness Thickness NNP 40404 2898 5 of of IN 40404 2898 6 Inclined Inclined NNP 40404 2898 7 Strata Strata NNP 40404 2898 8 ] ] -RRB- 40404 2898 9 12 12 CD 40404 2898 10 . . . 40404 2899 1 Measure measure NN 40404 2899 2 by by IN 40404 2899 3 the the DT 40404 2899 4 scale scale NN 40404 2899 5 the the DT 40404 2899 6 thickness thickness NN 40404 2899 7 _ _ NNP 40404 2899 8 bc bc NNP 40404 2899 9 _ _ NNP 40404 2899 10 of of IN 40404 2899 11 the the DT 40404 2899 12 coal coal NN 40404 2899 13 - - HYPH 40404 2899 14 bearing bear VBG 40404 2899 15 strata strata NN 40404 2899 16 outcropping outcrop VBG 40404 2899 17 from from IN 40404 2899 18 _ _ NNP 40404 2899 19 a a DT 40404 2899 20 _ _ NNP 40404 2899 21 to to IN 40404 2899 22 _ _ NNP 40404 2899 23 b b NNP 40404 2899 24 _ _ NNP 40404 2899 25 in in IN 40404 2899 26 Figure Figure NNP 40404 2899 27 199 199 CD 40404 2899 28 . . . 40404 2900 1 On on IN 40404 2900 2 any any DT 40404 2900 3 convenient convenient JJ 40404 2900 4 scale scale NN 40404 2900 5 draw draw VBP 40404 2900 6 a a DT 40404 2900 7 similar similar JJ 40404 2900 8 section section NN 40404 2900 9 of of IN 40404 2900 10 strata strata NN 40404 2900 11 with with IN 40404 2900 12 a a DT 40404 2900 13 dip dip NN 40404 2900 14 of of IN 40404 2900 15 30 30 CD 40404 2900 16 ° ° NNS 40404 2900 17 outcropping outcrop VBG 40404 2900 18 along along IN 40404 2900 19 a a DT 40404 2900 20 horizontal horizontal JJ 40404 2900 21 line line NN 40404 2900 22 normal normal JJ 40404 2900 23 to to IN 40404 2900 24 the the DT 40404 2900 25 strike strike NN 40404 2900 26 one one CD 40404 2900 27 thousand thousand CD 40404 2900 28 feet foot NNS 40404 2900 29 in in IN 40404 2900 30 length length NN 40404 2900 31 , , , 40404 2900 32 and and CC 40404 2900 33 measure measure VB 40404 2900 34 the the DT 40404 2900 35 thickness thickness NN 40404 2900 36 of of IN 40404 2900 37 the the DT 40404 2900 38 strata strata NN 40404 2900 39 by by IN 40404 2900 40 the the DT 40404 2900 41 scale scale NN 40404 2900 42 employed employ VBN 40404 2900 43 . . . 40404 2901 1 The the DT 40404 2901 2 thickness thickness NN 40404 2901 3 may may MD 40404 2901 4 also also RB 40404 2901 5 be be VB 40404 2901 6 calculated calculate VBN 40404 2901 7 by by IN 40404 2901 8 trigonometry trigonometry NNP 40404 2901 9 . . . 40404 2902 1 [ [ -LRB- 40404 2902 2 Illustration illustration NN 40404 2902 3 : : : 40404 2902 4 Fig Fig NNP 40404 2902 5 . . . 40404 2903 1 200 200 CD 40404 2903 2 . . . 40404 2904 1 Unconformity unconformity NN 40404 2904 2 between between IN 40404 2904 3 Parallel Parallel NNP 40404 2904 4 Strata Strata NNP 40404 2904 5 ] ] -RRB- 40404 2904 6 [ [ -LRB- 40404 2904 7 Illustration illustration NN 40404 2904 8 : : : 40404 2904 9 Fig Fig NNP 40404 2904 10 . . . 40404 2905 1 201 201 CD 40404 2905 2 . . . 40404 2906 1 Unconformity unconformity NN 40404 2906 2 between between IN 40404 2906 3 Non non JJ 40404 2906 4 - - JJ 40404 2906 5 parallel parallel JJ 40404 2906 6 Strata Strata NNP 40404 2906 7 ] ] -RRB- 40404 2906 8 Unconformity Unconformity NNP 40404 2906 9 Strata Strata NNP 40404 2906 10 deposited deposit VBD 40404 2906 11 one one CD 40404 2906 12 upon upon IN 40404 2906 13 , , , 40404 2906 14 another another DT 40404 2906 15 in in IN 40404 2906 16 an an DT 40404 2906 17 unbroken unbroken JJ 40404 2906 18 succession succession NN 40404 2906 19 are be VBP 40404 2906 20 said say VBN 40404 2906 21 to to TO 40404 2906 22 be be VB 40404 2906 23 _ _ NNP 40404 2906 24 conformable conformable NN 40404 2906 25 _ _ NNP 40404 2906 26 . . . 40404 2907 1 But but CC 40404 2907 2 the the DT 40404 2907 3 continuous continuous JJ 40404 2907 4 deposition deposition NN 40404 2907 5 of of IN 40404 2907 6 strata strata NN 40404 2907 7 is be VBZ 40404 2907 8 often often RB 40404 2907 9 interrupted interrupt VBN 40404 2907 10 by by IN 40404 2907 11 movements movement NNS 40404 2907 12 of of IN 40404 2907 13 the the DT 40404 2907 14 earth earth NN 40404 2907 15 's 's POS 40404 2907 16 crust crust NN 40404 2907 17 , , , 40404 2907 18 Old old JJ 40404 2907 19 sea sea NN 40404 2907 20 floors floor NNS 40404 2907 21 are be VBP 40404 2907 22 lifted lift VBN 40404 2907 23 to to TO 40404 2907 24 form form VB 40404 2907 25 land land NN 40404 2907 26 and and CC 40404 2907 27 are be VBP 40404 2907 28 again again RB 40404 2907 29 depressed depressed JJ 40404 2907 30 beneath beneath IN 40404 2907 31 the the DT 40404 2907 32 sea sea NN 40404 2907 33 to to TO 40404 2907 34 receive receive VB 40404 2907 35 a a DT 40404 2907 36 cover cover NN 40404 2907 37 of of IN 40404 2907 38 sediments sediment NNS 40404 2907 39 only only RB 40404 2907 40 after after IN 40404 2907 41 an an DT 40404 2907 42 interval interval NN 40404 2907 43 during during IN 40404 2907 44 which which WDT 40404 2907 45 they -PRON- PRP 40404 2907 46 were be VBD 40404 2907 47 carved carve VBN 40404 2907 48 by by IN 40404 2907 49 subaërial subaërial JJ 40404 2907 50 erosion erosion NN 40404 2907 51 . . . 40404 2908 1 An an DT 40404 2908 2 erosion erosion NN 40404 2908 3 surface surface NN 40404 2908 4 which which WDT 40404 2908 5 thus thus RB 40404 2908 6 parts part VBZ 40404 2908 7 older old JJR 40404 2908 8 from from IN 40404 2908 9 younger young JJR 40404 2908 10 strata stratum NNS 40404 2908 11 is be VBZ 40404 2908 12 known know VBN 40404 2908 13 as as IN 40404 2908 14 an an DT 40404 2908 15 _ _ NNP 40404 2908 16 unconformity unconformity NN 40404 2908 17 _ _ NNP 40404 2908 18 , , , 40404 2908 19 and and CC 40404 2908 20 the the DT 40404 2908 21 strata strata NN 40404 2908 22 above above IN 40404 2908 23 it -PRON- PRP 40404 2908 24 are be VBP 40404 2908 25 said say VBN 40404 2908 26 to to TO 40404 2908 27 be be VB 40404 2908 28 _ _ NNP 40404 2908 29 unconformable unconformable JJ 40404 2908 30 _ _ NNP 40404 2908 31 with with IN 40404 2908 32 the the DT 40404 2908 33 rocks rock NNS 40404 2908 34 below below RB 40404 2908 35 , , , 40404 2908 36 or or CC 40404 2908 37 to to TO 40404 2908 38 rest rest VB 40404 2908 39 unconformably unconformably RB 40404 2908 40 upon upon IN 40404 2908 41 them -PRON- PRP 40404 2908 42 . . . 40404 2909 1 An an DT 40404 2909 2 unconformity unconformity NN 40404 2909 3 thus thus RB 40404 2909 4 records record VBZ 40404 2909 5 movements movement NNS 40404 2909 6 of of IN 40404 2909 7 the the DT 40404 2909 8 crust crust NN 40404 2909 9 and and CC 40404 2909 10 a a DT 40404 2909 11 consequent consequent JJ 40404 2909 12 break break NN 40404 2909 13 in in IN 40404 2909 14 the the DT 40404 2909 15 deposition deposition NN 40404 2909 16 of of IN 40404 2909 17 the the DT 40404 2909 18 strata strata NN 40404 2909 19 . . . 40404 2910 1 It -PRON- PRP 40404 2910 2 denotes denote VBZ 40404 2910 3 a a DT 40404 2910 4 period period NN 40404 2910 5 of of IN 40404 2910 6 land land NN 40404 2910 7 erosion erosion NN 40404 2910 8 of of IN 40404 2910 9 greater great JJR 40404 2910 10 or or CC 40404 2910 11 less less JJR 40404 2910 12 length length NN 40404 2910 13 , , , 40404 2910 14 which which WDT 40404 2910 15 may may MD 40404 2910 16 sometimes sometimes RB 40404 2910 17 be be VB 40404 2910 18 roughly roughly RB 40404 2910 19 measured measure VBN 40404 2910 20 by by IN 40404 2910 21 the the DT 40404 2910 22 stage stage NN 40404 2910 23 in in IN 40404 2910 24 the the DT 40404 2910 25 erosion erosion NN 40404 2910 26 cycle cycle NN 40404 2910 27 which which WDT 40404 2910 28 the the DT 40404 2910 29 land land NN 40404 2910 30 surface surface NN 40404 2910 31 had have VBD 40404 2910 32 attained attain VBN 40404 2910 33 before before IN 40404 2910 34 its -PRON- PRP$ 40404 2910 35 burial burial NN 40404 2910 36 . . . 40404 2911 1 Unconformable unconformable JJ 40404 2911 2 strata stratum NNS 40404 2911 3 may may MD 40404 2911 4 be be VB 40404 2911 5 _ _ NNP 40404 2911 6 parallel parallel JJ 40404 2911 7 _ _ NNP 40404 2911 8 , , , 40404 2911 9 as as IN 40404 2911 10 in in IN 40404 2911 11 Figure Figure NNP 40404 2911 12 200 200 CD 40404 2911 13 , , , 40404 2911 14 where where WRB 40404 2911 15 the the DT 40404 2911 16 record record NN 40404 2911 17 includes include VBZ 40404 2911 18 the the DT 40404 2911 19 deposition deposition NN 40404 2911 20 of of IN 40404 2911 21 strata strata NNP 40404 2911 22 _ _ NNP 40404 2911 23 a a DT 40404 2911 24 _ _ NNP 40404 2911 25 , , , 40404 2911 26 their -PRON- PRP$ 40404 2911 27 emergence emergence NN 40404 2911 28 , , , 40404 2911 29 the the DT 40404 2911 30 erosion erosion NN 40404 2911 31 of of IN 40404 2911 32 the the DT 40404 2911 33 land land NN 40404 2911 34 surface surface NN 40404 2911 35 _ _ NNP 40404 2911 36 ss ss NNP 40404 2911 37 _ _ NNP 40404 2911 38 , , , 40404 2911 39 a a DT 40404 2911 40 submergence submergence NN 40404 2911 41 and and CC 40404 2911 42 the the DT 40404 2911 43 deposit deposit NN 40404 2911 44 of of IN 40404 2911 45 the the DT 40404 2911 46 strata strata NN 40404 2911 47 _ _ NNP 40404 2911 48 b b NNP 40404 2911 49 _ _ NNP 40404 2911 50 , , , 40404 2911 51 and and CC 40404 2911 52 lastly lastly RB 40404 2911 53 , , , 40404 2911 54 emergence emergence NN 40404 2911 55 and and CC 40404 2911 56 the the DT 40404 2911 57 erosion erosion NN 40404 2911 58 of of IN 40404 2911 59 the the DT 40404 2911 60 present present JJ 40404 2911 61 surface surface NN 40404 2911 62 _ _ NNP 40404 2911 63 s´s s´s NNP 40404 2911 64 ´ ´ CD 40404 2911 65 _ _ NNP 40404 2911 66 . . . 40404 2912 1 [ [ -LRB- 40404 2912 2 Illustration illustration NN 40404 2912 3 : : : 40404 2912 4 Fig Fig NNP 40404 2912 5 . . . 40404 2913 1 202 202 CD 40404 2913 2 . . . 40404 2914 1 Carboniferous Carboniferous NNP 40404 2914 2 Limestone Limestone NNP 40404 2914 3 resting rest VBG 40404 2914 4 unconformably unconformably RB 40404 2914 5 on on IN 40404 2914 6 Early early JJ 40404 2914 7 Silurian silurian JJ 40404 2914 8 Slates Slates NNPS 40404 2914 9 , , , 40404 2914 10 Yorkshire Yorkshire NNP 40404 2914 11 , , , 40404 2914 12 England England NNP 40404 2914 13 ] ] -RRB- 40404 2914 14 Often often RB 40404 2914 15 the the DT 40404 2914 16 earth earth NN 40404 2914 17 movements movement NNS 40404 2914 18 to to TO 40404 2914 19 which which WDT 40404 2914 20 the the DT 40404 2914 21 uplift uplift NN 40404 2914 22 or or CC 40404 2914 23 depression depression NN 40404 2914 24 was be VBD 40404 2914 25 due due JJ 40404 2914 26 involved involved JJ 40404 2914 27 tilting tilting NN 40404 2914 28 or or CC 40404 2914 29 folding folding NN 40404 2914 30 of of IN 40404 2914 31 the the DT 40404 2914 32 earlier early JJR 40404 2914 33 strata strata NN 40404 2914 34 , , , 40404 2914 35 so so IN 40404 2914 36 that that IN 40404 2914 37 the the DT 40404 2914 38 strata strata NN 40404 2914 39 are be VBP 40404 2914 40 now now RB 40404 2914 41 nonparallel nonparallel RB 40404 2914 42 as as RB 40404 2914 43 well well RB 40404 2914 44 as as IN 40404 2914 45 unconformable unconformable JJ 40404 2914 46 . . . 40404 2915 1 In in IN 40404 2915 2 Figure Figure NNP 40404 2915 3 201 201 CD 40404 2915 4 , , , 40404 2915 5 for for IN 40404 2915 6 example example NN 40404 2915 7 , , , 40404 2915 8 the the DT 40404 2915 9 record record NN 40404 2915 10 includes include VBZ 40404 2915 11 deposition deposition NN 40404 2915 12 , , , 40404 2915 13 uplift uplift NN 40404 2915 14 , , , 40404 2915 15 and and CC 40404 2915 16 _ _ NNP 40404 2915 17 tilting tilting NN 40404 2915 18 _ _ NNP 40404 2915 19 of of IN 40404 2915 20 _ _ NNP 40404 2915 21 a a DT 40404 2915 22 _ _ NNP 40404 2915 23 ; ; : 40404 2915 24 erosion erosion NN 40404 2915 25 , , , 40404 2915 26 depression depression NN 40404 2915 27 , , , 40404 2915 28 the the DT 40404 2915 29 deposit deposit NN 40404 2915 30 of of IN 40404 2915 31 _ _ NNP 40404 2915 32 b b NNP 40404 2915 33 _ _ NNP 40404 2915 34 ; ; : 40404 2915 35 and and CC 40404 2915 36 finally finally RB 40404 2915 37 the the DT 40404 2915 38 uplift uplift NN 40404 2915 39 which which WDT 40404 2915 40 has have VBZ 40404 2915 41 brought bring VBN 40404 2915 42 the the DT 40404 2915 43 rocks rock NNS 40404 2915 44 to to TO 40404 2915 45 open open VB 40404 2915 46 air air NN 40404 2915 47 and and CC 40404 2915 48 permitted permit VBD 40404 2915 49 the the DT 40404 2915 50 dissection dissection NN 40404 2915 51 by by IN 40404 2915 52 which which WDT 40404 2915 53 the the DT 40404 2915 54 unconformity unconformity NN 40404 2915 55 is be VBZ 40404 2915 56 revealed reveal VBN 40404 2915 57 . . . 40404 2916 1 From from IN 40404 2916 2 this this DT 40404 2916 3 section section NN 40404 2916 4 we -PRON- PRP 40404 2916 5 infer infer VBP 40404 2916 6 that that IN 40404 2916 7 during during IN 40404 2916 8 early early JJ 40404 2916 9 Silurian silurian JJ 40404 2916 10 times time NNS 40404 2916 11 the the DT 40404 2916 12 area area NN 40404 2916 13 was be VBD 40404 2916 14 sea sea NN 40404 2916 15 , , , 40404 2916 16 and and CC 40404 2916 17 thick thick JJ 40404 2916 18 sea sea NN 40404 2916 19 muds mud NNS 40404 2916 20 were be VBD 40404 2916 21 laid lay VBN 40404 2916 22 upon upon IN 40404 2916 23 it -PRON- PRP 40404 2916 24 . . . 40404 2917 1 These these DT 40404 2917 2 were be VBD 40404 2917 3 later later RB 40404 2917 4 altered alter VBN 40404 2917 5 to to IN 40404 2917 6 hard hard JJ 40404 2917 7 slates slate NNS 40404 2917 8 by by IN 40404 2917 9 pressure pressure NN 40404 2917 10 and and CC 40404 2917 11 upfolded upfolde VBD 40404 2917 12 into into IN 40404 2917 13 mountains mountain NNS 40404 2917 14 . . . 40404 2918 1 During during IN 40404 2918 2 the the DT 40404 2918 3 later later JJ 40404 2918 4 Silurian Silurian NNP 40404 2918 5 and and CC 40404 2918 6 the the DT 40404 2918 7 Devonian Devonian NNP 40404 2918 8 the the DT 40404 2918 9 area area NN 40404 2918 10 was be VBD 40404 2918 11 land land NN 40404 2918 12 and and CC 40404 2918 13 suffered suffer VBD 40404 2918 14 vast vast JJ 40404 2918 15 denudation denudation NN 40404 2918 16 . . . 40404 2919 1 In in IN 40404 2919 2 the the DT 40404 2919 3 Carboniferous carboniferous JJ 40404 2919 4 period period NN 40404 2919 5 it -PRON- PRP 40404 2919 6 was be VBD 40404 2919 7 lowered lower VBN 40404 2919 8 beneath beneath IN 40404 2919 9 the the DT 40404 2919 10 sea sea NN 40404 2919 11 and and CC 40404 2919 12 received receive VBD 40404 2919 13 a a DT 40404 2919 14 cover cover NN 40404 2919 15 of of IN 40404 2919 16 limestone limestone NN 40404 2919 17 . . . 40404 2920 1 [ [ -LRB- 40404 2920 2 Illustration illustration NN 40404 2920 3 : : : 40404 2920 4 Fig Fig NNP 40404 2920 5 . . . 40404 2921 1 203 203 CD 40404 2921 2 . . . 40404 2922 1 Diagram Diagram NNP 40404 2922 2 Illustrating Illustrating NNP 40404 2922 3 how how WRB 40404 2922 4 the the DT 40404 2922 5 Age Age NNP 40404 2922 6 of of IN 40404 2922 7 Mountains Mountains NNPS 40404 2922 8 is be VBZ 40404 2922 9 determined determine VBN 40404 2922 10 ] ] -RRB- 40404 2922 11 = = NFP 40404 2922 12 The the DT 40404 2922 13 age age NN 40404 2922 14 of of IN 40404 2922 15 mountains.= mountains.= NNS 40404 2922 16 It -PRON- PRP 40404 2922 17 is be VBZ 40404 2922 18 largely largely RB 40404 2922 19 by by IN 40404 2922 20 means mean NNS 40404 2922 21 of of IN 40404 2922 22 unconformities unconformitie NNS 40404 2922 23 that that WDT 40404 2922 24 we -PRON- PRP 40404 2922 25 read read VBP 40404 2922 26 the the DT 40404 2922 27 history history NN 40404 2922 28 of of IN 40404 2922 29 mountain mountain NN 40404 2922 30 making making NN 40404 2922 31 and and CC 40404 2922 32 other other JJ 40404 2922 33 deformations deformation NNS 40404 2922 34 and and CC 40404 2922 35 movements movement NNS 40404 2922 36 of of IN 40404 2922 37 the the DT 40404 2922 38 crust crust NN 40404 2922 39 . . . 40404 2923 1 In in IN 40404 2923 2 Figure Figure NNP 40404 2923 3 203 203 CD 40404 2923 4 , , , 40404 2923 5 for for IN 40404 2923 6 example example NN 40404 2923 7 , , , 40404 2923 8 the the DT 40404 2923 9 deformation deformation NN 40404 2923 10 which which WDT 40404 2923 11 upfolded upfolde VBD 40404 2923 12 the the DT 40404 2923 13 range range NN 40404 2923 14 of of IN 40404 2923 15 mountains mountain NNS 40404 2923 16 took take VBD 40404 2923 17 place place NN 40404 2923 18 after after IN 40404 2923 19 the the DT 40404 2923 20 deposit deposit NN 40404 2923 21 of of IN 40404 2923 22 the the DT 40404 2923 23 series series NN 40404 2923 24 of of IN 40404 2923 25 strata strata NNP 40404 2923 26 a a DT 40404 2923 27 of of IN 40404 2923 28 which which WDT 40404 2923 29 the the DT 40404 2923 30 mountains mountain NNS 40404 2923 31 are be VBP 40404 2923 32 composed compose VBN 40404 2923 33 , , , 40404 2923 34 and and CC 40404 2923 35 before before IN 40404 2923 36 the the DT 40404 2923 37 deposit deposit NN 40404 2923 38 of of IN 40404 2923 39 the the DT 40404 2923 40 stratified stratified JJ 40404 2923 41 rocks rock NNS 40404 2923 42 , , , 40404 2923 43 which which WDT 40404 2923 44 rest rest VBP 40404 2923 45 unconformably unconformably RB 40404 2923 46 on on IN 40404 2923 47 a a DT 40404 2923 48 and and CC 40404 2923 49 have have VBP 40404 2923 50 not not RB 40404 2923 51 shared share VBN 40404 2923 52 their -PRON- PRP$ 40404 2923 53 uplift uplift NN 40404 2923 54 . . . 40404 2924 1 [ [ -LRB- 40404 2924 2 Illustration illustration NN 40404 2924 3 : : : 40404 2924 4 Fig Fig NNP 40404 2924 5 . . . 40404 2925 1 204 204 CD 40404 2925 2 . . . 40404 2926 1 Section section NN 40404 2926 2 of of IN 40404 2926 3 Mountain Mountain NNP 40404 2926 4 Range Range NNP 40404 2926 5 showing show VBG 40404 2926 6 repeated repeat VBN 40404 2926 7 Uplifts Uplifts NNP 40404 2926 8 _ _ NNP 40404 2926 9 a a DT 40404 2926 10 _ _ NNP 40404 2926 11 , , , 40404 2926 12 strata strata NN 40404 2926 13 whose whose WP$ 40404 2926 14 folding folding NN 40404 2926 15 formed form VBD 40404 2926 16 a a DT 40404 2926 17 mountain mountain NN 40404 2926 18 range range NN 40404 2926 19 ; ; : 40404 2926 20 on on RB 40404 2926 21 , , , 40404 2926 22 baseleveled baselevele VBN 40404 2926 23 surface surface NN 40404 2926 24 produced produce VBN 40404 2926 25 by by IN 40404 2926 26 long long JJ 40404 2926 27 denudation denudation NN 40404 2926 28 of of IN 40404 2926 29 the the DT 40404 2926 30 mountains mountain NNS 40404 2926 31 ; ; : 40404 2926 32 _ _ NNP 40404 2926 33 b b NNP 40404 2926 34 _ _ NNP 40404 2926 35 , , , 40404 2926 36 tilted tilt VBN 40404 2926 37 strata strata NN 40404 2926 38 resting rest VBG 40404 2926 39 unconformably unconformably RB 40404 2926 40 on on IN 40404 2926 41 _ _ NNP 40404 2926 42 a a DT 40404 2926 43 _ _ NNP 40404 2926 44 ; ; : 40404 2926 45 _ _ NNP 40404 2926 46 c c NNP 40404 2926 47 _ _ NNP 40404 2926 48 , , , 40404 2926 49 horizontal horizontal JJ 40404 2926 50 strata stratum NNS 40404 2926 51 parted part VBN 40404 2926 52 from from IN 40404 2926 53 _ _ NNP 40404 2926 54 b b NNP 40404 2926 55 _ _ NNP 40404 2926 56 by by IN 40404 2926 57 the the DT 40404 2926 58 unconformity unconformity NN 40404 2926 59 _ _ NNP 40404 2926 60 u´u u´u NN 40404 2926 61 ´ ´ CD 40404 2926 62 _ _ NNP 40404 2926 63 . . . 40404 2927 1 The the DT 40404 2927 2 first first JJ 40404 2927 3 uplift uplift NN 40404 2927 4 of of IN 40404 2927 5 the the DT 40404 2927 6 range range NN 40404 2927 7 preceded precede VBD 40404 2927 8 the the DT 40404 2927 9 period period NN 40404 2927 10 of of IN 40404 2927 11 time time NN 40404 2927 12 when when WRB 40404 2927 13 _ _ NNP 40404 2927 14 b b NNP 40404 2927 15 _ _ NNP 40404 2927 16 was be VBD 40404 2927 17 deposited deposit VBN 40404 2927 18 . . . 40404 2928 1 The the DT 40404 2928 2 and and CC 40404 2928 3 uplift uplift NN 40404 2928 4 , , , 40404 2928 5 to to TO 40404 2928 6 which which WDT 40404 2928 7 the the DT 40404 2928 8 present present JJ 40404 2928 9 mountains mountain NNS 40404 2928 10 owe owe VBP 40404 2928 11 their -PRON- PRP$ 40404 2928 12 height height NN 40404 2928 13 , , , 40404 2928 14 was be VBD 40404 2928 15 later later RB 40404 2928 16 than than IN 40404 2928 17 this this DT 40404 2928 18 period period NN 40404 2928 19 but but CC 40404 2928 20 earlier early JJR 40404 2928 21 than than IN 40404 2928 22 the the DT 40404 2928 23 period period NN 40404 2928 24 when when WRB 40404 2928 25 strata strata NNP 40404 2928 26 _ _ NNP 40404 2928 27 c c NNP 40404 2928 28 _ _ NNP 40404 2928 29 were be VBD 40404 2928 30 laid lay VBN 40404 2928 31 ] ] -RRB- 40404 2928 32 Most most RBS 40404 2928 33 great great JJ 40404 2928 34 mountain mountain NN 40404 2928 35 ranges range NNS 40404 2928 36 , , , 40404 2928 37 like like IN 40404 2928 38 the the DT 40404 2928 39 Sierra Sierra NNP 40404 2928 40 Nevada Nevada NNP 40404 2928 41 and and CC 40404 2928 42 the the DT 40404 2928 43 Alps Alps NNPS 40404 2928 44 , , , 40404 2928 45 mark mark VB 40404 2928 46 lines line NNS 40404 2928 47 of of IN 40404 2928 48 weakness weakness NN 40404 2928 49 along along IN 40404 2928 50 which which WDT 40404 2928 51 the the DT 40404 2928 52 earth earth NN 40404 2928 53 's 's POS 40404 2928 54 crust crust NN 40404 2928 55 has have VBZ 40404 2928 56 yielded yield VBN 40404 2928 57 again again RB 40404 2928 58 and and CC 40404 2928 59 again again RB 40404 2928 60 during during IN 40404 2928 61 the the DT 40404 2928 62 long long JJ 40404 2928 63 ages age NNS 40404 2928 64 of of IN 40404 2928 65 geological geological JJ 40404 2928 66 time time NN 40404 2928 67 . . . 40404 2929 1 The the DT 40404 2929 2 strata strata NN 40404 2929 3 deposited deposit VBN 40404 2929 4 at at IN 40404 2929 5 various various JJ 40404 2929 6 times time NNS 40404 2929 7 about about IN 40404 2929 8 their -PRON- PRP$ 40404 2929 9 flanks flank NNS 40404 2929 10 have have VBP 40404 2929 11 been be VBN 40404 2929 12 infolded infolde VBN 40404 2929 13 by by IN 40404 2929 14 later later JJ 40404 2929 15 crumplings crumpling NNS 40404 2929 16 with with IN 40404 2929 17 the the DT 40404 2929 18 original original JJ 40404 2929 19 mountain mountain NN 40404 2929 20 mass mass NN 40404 2929 21 , , , 40404 2929 22 and and CC 40404 2929 23 have have VBP 40404 2929 24 been be VBN 40404 2929 25 repeatedly repeatedly RB 40404 2929 26 crushed crush VBN 40404 2929 27 , , , 40404 2929 28 inverted invert VBN 40404 2929 29 , , , 40404 2929 30 faulted fault VBN 40404 2929 31 , , , 40404 2929 32 intruded intrude VBN 40404 2929 33 with with IN 40404 2929 34 igneous igneous JJ 40404 2929 35 rocks rock NNS 40404 2929 36 , , , 40404 2929 37 and and CC 40404 2929 38 denuded denude VBD 40404 2929 39 . . . 40404 2930 1 The the DT 40404 2930 2 structure structure NN 40404 2930 3 of of IN 40404 2930 4 great great JJ 40404 2930 5 mountain mountain NN 40404 2930 6 ranges range NNS 40404 2930 7 thus thus RB 40404 2930 8 becomes become VBZ 40404 2930 9 exceedingly exceedingly RB 40404 2930 10 complex complex JJ 40404 2930 11 and and CC 40404 2930 12 difficult difficult JJ 40404 2930 13 to to TO 40404 2930 14 read read VB 40404 2930 15 . . . 40404 2931 1 A a DT 40404 2931 2 comparatively comparatively RB 40404 2931 3 simple simple JJ 40404 2931 4 case case NN 40404 2931 5 of of IN 40404 2931 6 repeated repeat VBN 40404 2931 7 uplift uplift NN 40404 2931 8 is be VBZ 40404 2931 9 shown show VBN 40404 2931 10 in in IN 40404 2931 11 Figure Figure NNP 40404 2931 12 204 204 CD 40404 2931 13 . . . 40404 2932 1 In in IN 40404 2932 2 the the DT 40404 2932 3 section section NN 40404 2932 4 of of IN 40404 2932 5 a a DT 40404 2932 6 portion portion NN 40404 2932 7 of of IN 40404 2932 8 the the DT 40404 2932 9 Alps Alps NNP 40404 2932 10 shown show VBN 40404 2932 11 in in IN 40404 2932 12 Figure figure NN 40404 2932 13 179 179 CD 40404 2932 14 a a DT 40404 2932 15 far far RB 40404 2932 16 more more RBR 40404 2932 17 complicated complicated JJ 40404 2932 18 history history NN 40404 2932 19 may may MD 40404 2932 20 be be VB 40404 2932 21 deciphered decipher VBN 40404 2932 22 . . . 40404 2933 1 [ [ -LRB- 40404 2933 2 Illustration illustration NN 40404 2933 3 : : : 40404 2933 4 Fig Fig NNP 40404 2933 5 . . . 40404 2934 1 205 205 CD 40404 2934 2 . . . 40404 2935 1 Unconformity unconformity NN 40404 2935 2 showing show VBG 40404 2935 3 Buried Buried NNP 40404 2935 4 Valleys Valleys NNP 40404 2935 5 _ _ NNP 40404 2935 6 lm lm NNP 40404 2935 7 _ _ NNP 40404 2935 8 , , , 40404 2935 9 limestone limestone NN 40404 2935 10 ; ; : 40404 2935 11 _ _ NNP 40404 2935 12 sh sh NNP 40404 2935 13 _ _ NNP 40404 2935 14 , , , 40404 2935 15 shale shale NNP 40404 2935 16 ; ; : 40404 2935 17 _ _ NNP 40404 2935 18 r r NNP 40404 2935 19 _ _ NNP 40404 2935 20 , , , 40404 2935 21 _ _ NNP 40404 2935 22 r r NNP 40404 2935 23 ´ ´ CD 40404 2935 24 _ _ NNP 40404 2935 25 , , , 40404 2935 26 and and CC 40404 2935 27 _ _ NNP 40404 2935 28 r r NNP 40404 2935 29 ´ ´ CD 40404 2935 30 ´ ´ CD 40404 2935 31 _ _ NNP 40404 2935 32 , , , 40404 2935 33 river river NN 40404 2935 34 silts silt NNS 40404 2935 35 filling fill VBG 40404 2935 36 eroded erode VBD 40404 2935 37 valleys valley NNS 40404 2935 38 in in IN 40404 2935 39 the the DT 40404 2935 40 limestone limestone NN 40404 2935 41 . . . 40404 2936 1 The the DT 40404 2936 2 upper upper JJ 40404 2936 3 surface surface NN 40404 2936 4 of of IN 40404 2936 5 the the DT 40404 2936 6 limestone limestone NN 40404 2936 7 is be VBZ 40404 2936 8 evidently evidently RB 40404 2936 9 a a DT 40404 2936 10 land land NN 40404 2936 11 surface surface NN 40404 2936 12 developed develop VBN 40404 2936 13 by by IN 40404 2936 14 erosion erosion NN 40404 2936 15 . . . 40404 2937 1 The the DT 40404 2937 2 valleys valley NNS 40404 2937 3 which which WDT 40404 2937 4 trench trench VBP 40404 2937 5 it -PRON- PRP 40404 2937 6 are be VBP 40404 2937 7 narrow narrow JJ 40404 2937 8 and and CC 40404 2937 9 steep steep JJ 40404 2937 10 - - HYPH 40404 2937 11 sided sided JJ 40404 2937 12 ; ; : 40404 2937 13 hence hence RB 40404 2937 14 the the DT 40404 2937 15 land land NN 40404 2937 16 surface surface NN 40404 2937 17 had have VBD 40404 2937 18 not not RB 40404 2937 19 reached reach VBN 40404 2937 20 maturity maturity NN 40404 2937 21 . . . 40404 2938 1 The the DT 40404 2938 2 sands sand NNS 40404 2938 3 and and CC 40404 2938 4 muds mud NNS 40404 2938 5 , , , 40404 2938 6 now now RB 40404 2938 7 hardened harden VBN 40404 2938 8 to to TO 40404 2938 9 firm firm VB 40404 2938 10 rock rock NN 40404 2938 11 , , , 40404 2938 12 which which WDT 40404 2938 13 fill fill VBP 40404 2938 14 these these DT 40404 2938 15 valleys valley NNS 40404 2938 16 , , , 40404 2938 17 _ _ NNP 40404 2938 18 r r NNP 40404 2938 19 _ _ NNP 40404 2938 20 , , , 40404 2938 21 _ _ NNP 40404 2938 22 r r NNP 40404 2938 23 ´ ´ CD 40404 2938 24 _ _ NNP 40404 2938 25 , , , 40404 2938 26 and and CC 40404 2938 27 _ _ NNP 40404 2938 28 r r NNP 40404 2938 29 ´ ´ CD 40404 2938 30 ´ ´ CD 40404 2938 31 _ _ NNP 40404 2938 32 , , , 40404 2938 33 contain contain VBP 40404 2938 34 no no DT 40404 2938 35 relics relic NNS 40404 2938 36 of of IN 40404 2938 37 the the DT 40404 2938 38 sea sea NN 40404 2938 39 , , , 40404 2938 40 but but CC 40404 2938 41 Instead instead RB 40404 2938 42 the the DT 40404 2938 43 remains remain NNS 40404 2938 44 of of IN 40404 2938 45 land land NN 40404 2938 46 animals animal NNS 40404 2938 47 and and CC 40404 2938 48 plants plant NNS 40404 2938 49 . . . 40404 2939 1 They -PRON- PRP 40404 2939 2 are be VBP 40404 2939 3 river river NN 40404 2939 4 deposits deposit NNS 40404 2939 5 , , , 40404 2939 6 and and CC 40404 2939 7 we -PRON- PRP 40404 2939 8 may may MD 40404 2939 9 infer infer VB 40404 2939 10 that that DT 40404 2939 11 owing owe VBG 40404 2939 12 to to IN 40404 2939 13 a a DT 40404 2939 14 subsidence subsidence NN 40404 2939 15 the the DT 40404 2939 16 young young JJ 40404 2939 17 rivers river NNS 40404 2939 18 ceased cease VBD 40404 2939 19 to to TO 40404 2939 20 degrade degrade VB 40404 2939 21 their -PRON- PRP$ 40404 2939 22 channels channel NNS 40404 2939 23 and and CC 40404 2939 24 slowly slowly RB 40404 2939 25 filled fill VBD 40404 2939 26 their -PRON- PRP$ 40404 2939 27 gorges gorge NNS 40404 2939 28 with with IN 40404 2939 29 sands sand NNS 40404 2939 30 and and CC 40404 2939 31 silts silt NNS 40404 2939 32 . . . 40404 2940 1 The the DT 40404 2940 2 overlying overlie VBG 40404 2940 3 shale shale NN 40404 2940 4 records record VBZ 40404 2940 5 a a DT 40404 2940 6 further further JJ 40404 2940 7 depression depression NN 40404 2940 8 which which WDT 40404 2940 9 brought bring VBD 40404 2940 10 the the DT 40404 2940 11 lanes lane NNS 40404 2940 12 below below IN 40404 2940 13 the the DT 40404 2940 14 level level NN 40404 2940 15 of of IN 40404 2940 16 the the DT 40404 2940 17 sea sea NN 40404 2940 18 . . . 40404 2941 1 A a DT 40404 2941 2 section section NN 40404 2941 3 similar similar JJ 40404 2941 4 to to IN 40404 2941 5 this this DT 40404 2941 6 is be VBZ 40404 2941 7 to to TO 40404 2941 8 be be VB 40404 2941 9 seen see VBN 40404 2941 10 in in IN 40404 2941 11 the the DT 40404 2941 12 coal coal NN 40404 2941 13 mines mine NNS 40404 2941 14 of of IN 40404 2941 15 Bernissant Bernissant NNP 40404 2941 16 , , , 40404 2941 17 Belgium Belgium NNP 40404 2941 18 , , , 40404 2941 19 where where WRB 40404 2941 20 a a DT 40404 2941 21 gorge gorge NN 40404 2941 22 twice twice RB 40404 2941 23 as as RB 40404 2941 24 deep deep JJ 40404 2941 25 as as IN 40404 2941 26 that that DT 40404 2941 27 of of IN 40404 2941 28 Niagara Niagara NNP 40404 2941 29 was be VBD 40404 2941 30 discovered discover VBN 40404 2941 31 within within IN 40404 2941 32 whose whose WP$ 40404 2941 33 ancient ancient JJ 40404 2941 34 river river NN 40404 2941 35 deposits deposit NNS 40404 2941 36 were be VBD 40404 2941 37 found find VBN 40404 2941 38 entombed entomb VBN 40404 2941 39 the the DT 40404 2941 40 skeletons skeleton NNS 40404 2941 41 of of IN 40404 2941 42 more more JJR 40404 2941 43 than than IN 40404 2941 44 a a DT 40404 2941 45 score score NN 40404 2941 46 of of IN 40404 2941 47 the the DT 40404 2941 48 huge huge JJ 40404 2941 49 reptiles reptile NNS 40404 2941 50 characteristic characteristic JJ 40404 2941 51 of of IN 40404 2941 52 the the DT 40404 2941 53 age age NN 40404 2941 54 when when WRB 40404 2941 55 the the DT 40404 2941 56 gorge gorge NN 40404 2941 57 was be VBD 40404 2941 58 cut cut VBN 40404 2941 59 and and CC 40404 2941 60 filled fill VBN 40404 2941 61 ] ] -RRB- 40404 2941 62 [ [ -LRB- 40404 2941 63 Illustration illustration NN 40404 2941 64 : : : 40404 2941 65 Fig Fig NNP 40404 2941 66 . . . 40404 2942 1 206 206 CD 40404 2942 2 . . . 40404 2943 1 Unconformity unconformity NN 40404 2943 2 showing show VBG 40404 2943 3 Buried Buried NNP 40404 2943 4 Mountains Mountains NNPS 40404 2943 5 , , , 40404 2943 6 Scotland Scotland NNP 40404 2943 7 _ _ NNP 40404 2943 8 gn gn NNP 40404 2943 9 _ _ NNP 40404 2943 10 , , , 40404 2943 11 ancient ancient JJ 40404 2943 12 crystalline crystalline NN 40404 2943 13 rocks rock NNS 40404 2943 14 ; ; : 40404 2943 15 _ _ NNP 40404 2943 16 ss ss NNP 40404 2943 17 _ _ NNP 40404 2943 18 , , , 40404 2943 19 marine marine NNP 40404 2943 20 sandstones sandstone NNS 40404 2943 21 . . . 40404 2944 1 The the DT 40404 2944 2 surface surface NN 40404 2944 3 _ _ NNP 40404 2944 4 bb bb NNP 40404 2944 5 _ _ NNP 40404 2944 6 of of IN 40404 2944 7 the the DT 40404 2944 8 ancient ancient JJ 40404 2944 9 crystalline crystalline NN 40404 2944 10 rocks rock NNS 40404 2944 11 is be VBZ 40404 2944 12 mountainous mountainous JJ 40404 2944 13 , , , 40404 2944 14 with with IN 40404 2944 15 peaks peak NNS 40404 2944 16 rising rise VBG 40404 2944 17 to to IN 40404 2944 18 a a DT 40404 2944 19 height height NN 40404 2944 20 of of IN 40404 2944 21 as as RB 40404 2944 22 much much JJ 40404 2944 23 as as IN 40404 2944 24 three three CD 40404 2944 25 thousand thousand CD 40404 2944 26 feet foot NNS 40404 2944 27 . . . 40404 2945 1 It -PRON- PRP 40404 2945 2 is be VBZ 40404 2945 3 one one CD 40404 2945 4 of of IN 40404 2945 5 the the DT 40404 2945 6 most most RBS 40404 2945 7 ancient ancient JJ 40404 2945 8 land land NN 40404 2945 9 surfaces surface NNS 40404 2945 10 on on IN 40404 2945 11 the the DT 40404 2945 12 planet planet NN 40404 2945 13 and and CC 40404 2945 14 is be VBZ 40404 2945 15 covered cover VBN 40404 2945 16 unconformably unconformably RB 40404 2945 17 with with IN 40404 2945 18 pre pre JJ 40404 2945 19 - - JJ 40404 2945 20 Cambrian cambrian JJ 40404 2945 21 sandstones sandstone VBZ 40404 2945 22 thousands thousand NNS 40404 2945 23 of of IN 40404 2945 24 feet foot NNS 40404 2945 25 in in IN 40404 2945 26 thickness thickness NN 40404 2945 27 , , , 40404 2945 28 in in IN 40404 2945 29 which which WDT 40404 2945 30 the the DT 40404 2945 31 Torridonian Torridonian NNP 40404 2945 32 Mountains Mountains NNPS 40404 2945 33 of of IN 40404 2945 34 Scotland Scotland NNP 40404 2945 35 have have VBP 40404 2945 36 been be VBN 40404 2945 37 carved carve VBN 40404 2945 38 . . . 40404 2946 1 What what WP 40404 2946 2 has have VBZ 40404 2946 3 been be VBN 40404 2946 4 the the DT 40404 2946 5 history history NN 40404 2946 6 of of IN 40404 2946 7 the the DT 40404 2946 8 region region NN 40404 2946 9 since since IN 40404 2946 10 the the DT 40404 2946 11 mountainous mountainous JJ 40404 2946 12 surface surface NN 40404 2946 13 _ _ NNP 40404 2946 14 bb bb NNP 40404 2946 15 _ _ NNP 40404 2946 16 was be VBD 40404 2946 17 produced produce VBN 40404 2946 18 by by IN 40404 2946 19 erosion erosion NN 40404 2946 20 ? ? . 40404 2946 21 ] ] -RRB- 40404 2947 1 = = NFP 40404 2947 2 Unconformities unconformitie NNS 40404 2947 3 in in IN 40404 2947 4 the the DT 40404 2947 5 Colorado Colorado NNP 40404 2947 6 Canyon Canyon NNP 40404 2947 7 , , , 40404 2947 8 Arizona.= Arizona.= , 40404 2947 9 How how WRB 40404 2947 10 geological geological JJ 40404 2947 11 history history NN 40404 2947 12 may may MD 40404 2947 13 be be VB 40404 2947 14 read read VBN 40404 2947 15 in in IN 40404 2947 16 unconformities unconformitie NNS 40404 2947 17 is be VBZ 40404 2947 18 further further RB 40404 2947 19 illustrated illustrate VBN 40404 2947 20 in in IN 40404 2947 21 Figures Figures NNP 40404 2947 22 207 207 CD 40404 2947 23 and and CC 40404 2947 24 208 208 CD 40404 2947 25 > > NNS 40404 2947 26 . . . 40404 2948 1 The the DT 40404 2948 2 dark dark JJ 40404 2948 3 crystalline crystalline NN 40404 2948 4 rocks rock NNS 40404 2948 5 _ _ NNP 40404 2948 6 a a DT 40404 2948 7 _ _ NNP 40404 2948 8 at at IN 40404 2948 9 the the DT 40404 2948 10 bottom bottom NN 40404 2948 11 of of IN 40404 2948 12 the the DT 40404 2948 13 canyon canyon NN 40404 2948 14 are be VBP 40404 2948 15 among among IN 40404 2948 16 the the DT 40404 2948 17 most most RBS 40404 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2949 38 the the DT 40404 2949 39 canyon canyon NN 40404 2949 40 has have VBZ 40404 2949 41 been be VBN 40404 2949 42 cut cut VBN 40404 2949 43 . . . 40404 2950 1 [ [ -LRB- 40404 2950 2 Illustration illustration NN 40404 2950 3 : : : 40404 2950 4 Fig Fig NNP 40404 2950 5 . . . 40404 2951 1 207 207 CD 40404 2951 2 . . . 40404 2952 1 Diagram Diagram NNP 40404 2952 2 of of IN 40404 2952 3 Wall Wall NNP 40404 2952 4 of of IN 40404 2952 5 the the DT 40404 2952 6 Colorado Colorado NNP 40404 2952 7 Canyon Canyon NNP 40404 2952 8 , , , 40404 2952 9 Arizona Arizona NNP 40404 2952 10 , , , 40404 2952 11 showing show VBG 40404 2952 12 Unconformities Unconformities NNPS 40404 2952 13 ] ] -RRB- 40404 2952 14 Note note VB 40404 2952 15 that that IN 40404 2952 16 the the DT 40404 2952 17 crystalline crystalline NN 40404 2952 18 rocks rock VBZ 40404 2952 19 a a DT 40404 2952 20 have have VBP 40404 2952 21 been be VBN 40404 2952 22 crumpled crumple VBN 40404 2952 23 and and CC 40404 2952 24 crushed 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NNP 40404 2954 16 nm nm NNP 40404 2954 17 _ _ NNP 40404 2954 18 ? ? . 40404 2955 1 Describe describe VB 40404 2955 2 and and CC 40404 2955 3 account account VB 40404 2955 4 for for IN 40404 2955 5 the the DT 40404 2955 6 surface surface NN 40404 2955 7 _ _ NNP 40404 2955 8 mm mm NNP 40404 2955 9 ´ ´ NNP 40404 2955 10 _ _ NNP 40404 2955 11 . . . 40404 2956 1 How how WRB 40404 2956 2 does do VBZ 40404 2956 3 it -PRON- PRP 40404 2956 4 differ differ VB 40404 2956 5 from from IN 40404 2956 6 the the DT 40404 2956 7 surface surface NN 40404 2956 8 of of IN 40404 2956 9 the the DT 40404 2956 10 crystalline crystalline NN 40404 2956 11 rocks rock NNS 40404 2956 12 seen see VBN 40404 2956 13 in in IN 40404 2956 14 the the DT 40404 2956 15 Torridonian Torridonian NNP 40404 2956 16 Mountains Mountains NNPS 40404 2956 17 ( ( -LRB- 40404 2956 18 Fig Fig NNP 40404 2956 19 . . . 40404 2957 1 206 206 CD 40404 2957 2 ) ) -RRB- 40404 2957 3 , , , 40404 2957 4 and and CC 40404 2957 5 why why WRB 40404 2957 6 ? ? . 40404 2958 1 This this DT 40404 2958 2 surface surface NN 40404 2958 3 _ _ NNP 40404 2958 4 mm mm NNP 40404 2958 5 ´ ´ NNP 40404 2958 6 _ _ NNP 40404 2958 7 is be VBZ 40404 2958 8 one one CD 40404 2958 9 of of IN 40404 2958 10 the the DT 40404 2958 11 oldest old JJS 40404 2958 12 land land NN 40404 2958 13 surfaces surface NNS 40404 2958 14 of of IN 40404 2958 15 which which WDT 40404 2958 16 any any DT 40404 2958 17 vestige vestige NN 40404 2958 18 remains remain VBZ 40404 2958 19 . . . 40404 2959 1 It -PRON- PRP 40404 2959 2 is be VBZ 40404 2959 3 a a DT 40404 2959 4 bit bit NN 40404 2959 5 of of IN 40404 2959 6 fossil fossil JJ 40404 2959 7 geography geography NN 40404 2959 8 buried bury VBN 40404 2959 9 from from IN 40404 2959 10 view view NN 40404 2959 11 since since IN 40404 2959 12 the the DT 40404 2959 13 earliest early JJS 40404 2959 14 geological geological JJ 40404 2959 15 ages age NNS 40404 2959 16 and and CC 40404 2959 17 recently recently RB 40404 2959 18 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21 in in IN 40404 2962 22 Figure Figure NNP 40404 2962 23 207 207 CD 40404 2962 24 ] ] -RRB- 40404 2962 25 How how WRB 40404 2962 26 did do VBD 40404 2962 27 the the DT 40404 2962 28 surface surface NN 40404 2962 29 _ _ NNP 40404 2962 30 mm mm NNP 40404 2962 31 ´ ´ NNP 40404 2962 32 _ _ NNP 40404 2962 33 come come VB 40404 2962 34 to to TO 40404 2962 35 receive receive VB 40404 2962 36 its -PRON- PRP$ 40404 2962 37 cover cover NN 40404 2962 38 of of IN 40404 2962 39 sandstones sandstones NNP 40404 2962 40 _ _ NNP 40404 2962 41 b b NNP 40404 2962 42 _ _ NNP 40404 2962 43 ? ? . 40404 2963 1 From from IN 40404 2963 2 the the DT 40404 2963 3 thickness thickness NN 40404 2963 4 and and CC 40404 2963 5 coarseness coarseness NN 40404 2963 6 of of IN 40404 2963 7 these these DT 40404 2963 8 sediments sediment NNS 40404 2963 9 draw draw VBP 40404 2963 10 inferences inference NNS 40404 2963 11 as as IN 40404 2963 12 to to IN 40404 2963 13 the the DT 40404 2963 14 land land NN 40404 2963 15 mass 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2972 27 , , , 40404 2972 28 and and CC 40404 2972 29 it -PRON- PRP 40404 2972 30 may may MD 40404 2972 31 be be VB 40404 2972 32 traced trace VBN 40404 2972 33 for for IN 40404 2972 34 long long JJ 40404 2972 35 distances distance NNS 40404 2972 36 up up RB 40404 2972 37 and and CC 40404 2972 38 down down IN 40404 2972 39 the the DT 40404 2972 40 canyon canyon NN 40404 2972 41 . . . 40404 2973 1 Were be VBD 40404 2973 2 the the DT 40404 2973 3 layers layer NNS 40404 2973 4 of of IN 40404 2973 5 _ _ NNP 40404 2973 6 b b NNP 40404 2973 7 _ _ NNP 40404 2973 8 and and CC 40404 2973 9 the the DT 40404 2973 10 surface surface NN 40404 2973 11 _ _ NNP 40404 2973 12 mm mm NNP 40404 2973 13 ´ ´ NNP 40404 2973 14 _ _ NNP 40404 2973 15 always always RB 40404 2973 16 thus thus RB 40404 2973 17 cut cut VBN 40404 2973 18 short short JJ 40404 2973 19 by by IN 40404 2973 20 _ _ NNP 40404 2973 21 nn nn NNP 40404 2973 22 ´ ´ NNP 40404 2973 23 _ _ NNP 40404 2973 24 as as RB 40404 2973 25 now now RB 40404 2973 26 ? ? . 40404 2974 1 What what WP 40404 2974 2 has have VBZ 40404 2974 3 made make VBN 40404 2974 4 the the DT 40404 2974 5 surface surface NN 40404 2974 6 _ _ NNP 40404 2974 7 nn nn NNP 40404 2974 8 ´ ´ NNP 40404 2974 9 _ _ NNP 40404 2974 10 so so RB 40404 2974 11 even even RB 40404 2974 12 ? ? . 40404 2975 1 How how WRB 40404 2975 2 does do VBZ 40404 2975 3 it -PRON- PRP 40404 2975 4 come come VB 40404 2975 5 to to TO 40404 2975 6 cross cross VB 40404 2975 7 the the DT 40404 2975 8 hard hard JJ 40404 2975 9 crystalline crystalline NN 40404 2975 10 rocks rock NNS 40404 2975 11 a a DT 40404 2975 12 and and CC 40404 2975 13 the the DT 40404 2975 14 weaker weak JJR 40404 2975 15 sandstones sandstone NNS 40404 2975 16 _ _ NNP 40404 2975 17 b b NNP 40404 2975 18 _ _ NNP 40404 2975 19 at at IN 40404 2975 20 the the DT 40404 2975 21 same same JJ 40404 2975 22 impartial impartial JJ 40404 2975 23 level level NN 40404 2975 24 ? ? . 40404 2976 1 How how WRB 40404 2976 2 did do VBD 40404 2976 3 the the DT 40404 2976 4 sediments sediment NNS 40404 2976 5 of of IN 40404 2976 6 _ _ NNP 40404 2976 7 c c NNP 40404 2976 8 _ _ NNP 40404 2976 9 come come VB 40404 2976 10 to to TO 40404 2976 11 be be VB 40404 2976 12 laid lay VBN 40404 2976 13 upon upon IN 40404 2976 14 it -PRON- PRP 40404 2976 15 ? ? . 40404 2977 1 Give give VB 40404 2977 2 now now RB 40404 2977 3 the the DT 40404 2977 4 entire entire JJ 40404 2977 5 history history NN 40404 2977 6 recorded record VBN 40404 2977 7 in in IN 40404 2977 8 the the DT 40404 2977 9 section section NN 40404 2977 10 , , , 40404 2977 11 and and CC 40404 2977 12 in in IN 40404 2977 13 addition addition NN 40404 2977 14 that that IN 40404 2977 15 involved involve VBN 40404 2977 16 in in IN 40404 2977 17 the the DT 40404 2977 18 production production NN 40404 2977 19 of of IN 40404 2977 20 the the DT 40404 2977 21 platform platform NN 40404 2977 22 _ _ NNP 40404 2977 23 P P NNP 40404 2977 24 _ _ NNP 40404 2977 25 , , , 40404 2977 26 shown show VBN 40404 2977 27 in in IN 40404 2977 28 Figure Figure NNP 40404 2977 29 130 130 CD 40404 2977 30 , , , 40404 2977 31 and and CC 40404 2977 32 that that DT 40404 2977 33 of of IN 40404 2977 34 the the DT 40404 2977 35 cutting cutting NN 40404 2977 36 of of IN 40404 2977 37 the the DT 40404 2977 38 canyon canyon NN 40404 2977 39 . . . 40404 2978 1 How how WRB 40404 2978 2 does do VBZ 40404 2978 3 the the DT 40404 2978 4 time time NN 40404 2978 5 involved involve VBN 40404 2978 6 in in IN 40404 2978 7 the the DT 40404 2978 8 cutting cutting NN 40404 2978 9 of of IN 40404 2978 10 the the DT 40404 2978 11 canyon canyon NN 40404 2978 12 compare compare VBP 40404 2978 13 with with IN 40404 2978 14 that that DT 40404 2978 15 required require VBN 40404 2978 16 for for IN 40404 2978 17 the the DT 40404 2978 18 production production NN 40404 2978 19 of of IN 40404 2978 20 the the DT 40404 2978 21 surfaces surface NNS 40404 2978 22 _ _ NNP 40404 2978 23 mm mm NNP 40404 2978 24 ´ ´ NNP 40404 2978 25 _ _ NNP 40404 2978 26 , , , 40404 2978 27 _ _ NNP 40404 2978 28 nn nn NNP 40404 2978 29 ´ ´ NNP 40404 2978 30 _ _ NNP 40404 2978 31 , , , 40404 2978 32 and and CC 40404 2978 33 _ _ NNP 40404 2978 34 P P NNP 40404 2978 35 _ _ NNP 40404 2978 36 ? ? . 40404 2979 1 CHAPTER chapter NN 40404 2979 2 X x NN 40404 2979 3 EARTHQUAKES EARTHQUAKES NNP 40404 2979 4 Any any DT 40404 2979 5 sudden sudden JJ 40404 2979 6 movement movement NN 40404 2979 7 of of IN 40404 2979 8 the the DT 40404 2979 9 rocks rock NNS 40404 2979 10 of of IN 40404 2979 11 the the DT 40404 2979 12 crust crust NN 40404 2979 13 , , , 40404 2979 14 as as IN 40404 2979 15 when when WRB 40404 2979 16 they -PRON- PRP 40404 2979 17 tear tear VBP 40404 2979 18 apart apart RB 40404 2979 19 when when WRB 40404 2979 20 a a DT 40404 2979 21 fissure fissure NN 40404 2979 22 is be VBZ 40404 2979 23 formed form VBN 40404 2979 24 or or CC 40404 2979 25 extended extend VBN 40404 2979 26 , , , 40404 2979 27 or or CC 40404 2979 28 slip slip VB 40404 2979 29 from from IN 40404 2979 30 time time NN 40404 2979 31 to to IN 40404 2979 32 time time NN 40404 2979 33 along along IN 40404 2979 34 a a DT 40404 2979 35 growing grow VBG 40404 2979 36 fault fault NN 40404 2979 37 , , , 40404 2979 38 produces produce VBZ 40404 2979 39 a a DT 40404 2979 40 jar jar NN 40404 2979 41 called call VBN 40404 2979 42 an an DT 40404 2979 43 earthquake earthquake NN 40404 2979 44 , , , 40404 2979 45 which which WDT 40404 2979 46 spreads spread VBZ 40404 2979 47 in in IN 40404 2979 48 all all DT 40404 2979 49 directions direction NNS 40404 2979 50 from from IN 40404 2979 51 the the DT 40404 2979 52 place place NN 40404 2979 53 of of IN 40404 2979 54 disturbance disturbance NN 40404 2979 55 . . . 40404 2980 1 = = NFP 40404 2980 2 The the DT 40404 2980 3 Charleston Charleston NNP 40404 2980 4 earthquake.= earthquake.= VBD 40404 2980 5 On on IN 40404 2980 6 the the DT 40404 2980 7 evening evening NN 40404 2980 8 of of IN 40404 2980 9 August August NNP 40404 2980 10 31 31 CD 40404 2980 11 , , , 40404 2980 12 1886 1886 CD 40404 2980 13 , , , 40404 2980 14 the the DT 40404 2980 15 city city NN 40404 2980 16 of of IN 40404 2980 17 Charleston Charleston NNP 40404 2980 18 , , , 40404 2980 19 S.C. South Carolina NNP 40404 2980 20 , , , 40404 2980 21 was be VBD 40404 2980 22 shaken shake VBN 40404 2980 23 by by IN 40404 2980 24 one one CD 40404 2980 25 of of IN 40404 2980 26 the the DT 40404 2980 27 greatest great JJS 40404 2980 28 earthquakes earthquake NNS 40404 2980 29 which which WDT 40404 2980 30 has have VBZ 40404 2980 31 occurred occur VBN 40404 2980 32 in in IN 40404 2980 33 the the DT 40404 2980 34 United United NNP 40404 2980 35 States States NNP 40404 2980 36 . . . 40404 2981 1 A a DT 40404 2981 2 slight slight JJ 40404 2981 3 tremor tremor NN 40404 2981 4 which which WDT 40404 2981 5 rattled rattle VBD 40404 2981 6 the the DT 40404 2981 7 windows window NNS 40404 2981 8 was be VBD 40404 2981 9 followed follow VBN 40404 2981 10 a a DT 40404 2981 11 few few JJ 40404 2981 12 seconds second NNS 40404 2981 13 later later RB 40404 2981 14 by by IN 40404 2981 15 a a DT 40404 2981 16 roar roar NN 40404 2981 17 , , , 40404 2981 18 as as IN 40404 2981 19 of of IN 40404 2981 20 subterranean subterranean JJ 40404 2981 21 thunder thunder NN 40404 2981 22 , , , 40404 2981 23 as as IN 40404 2981 24 the the DT 40404 2981 25 main main JJ 40404 2981 26 shock shock NN 40404 2981 27 passed pass VBD 40404 2981 28 beneath beneath IN 40404 2981 29 the the DT 40404 2981 30 city city NN 40404 2981 31 . . . 40404 2982 1 Houses house NNS 40404 2982 2 swayed sway VBD 40404 2982 3 to to IN 40404 2982 4 and and CC 40404 2982 5 fro fro NNP 40404 2982 6 , , , 40404 2982 7 and and CC 40404 2982 8 their -PRON- PRP$ 40404 2982 9 heaving heaving NN 40404 2982 10 floors floor NNS 40404 2982 11 overturned overturn VBD 40404 2982 12 furniture furniture NN 40404 2982 13 and and CC 40404 2982 14 threw throw VBD 40404 2982 15 persons person NNS 40404 2982 16 off off IN 40404 2982 17 their -PRON- PRP$ 40404 2982 18 feet foot NNS 40404 2982 19 as as IN 40404 2982 20 , , , 40404 2982 21 dizzy dizzy VB 40404 2982 22 and and CC 40404 2982 23 nauseated nauseate VBN 40404 2982 24 , , , 40404 2982 25 they -PRON- PRP 40404 2982 26 rushed rush VBD 40404 2982 27 to to IN 40404 2982 28 the the DT 40404 2982 29 doors door NNS 40404 2982 30 for for IN 40404 2982 31 safety safety NN 40404 2982 32 . . . 40404 2983 1 In in IN 40404 2983 2 sixty sixty CD 40404 2983 3 seconds second NNS 40404 2983 4 a a DT 40404 2983 5 number number NN 40404 2983 6 of of IN 40404 2983 7 houses house NNS 40404 2983 8 were be VBD 40404 2983 9 completely completely RB 40404 2983 10 wrecked wreck VBN 40404 2983 11 , , , 40404 2983 12 fourteen fourteen CD 40404 2983 13 thousand thousand CD 40404 2983 14 chimneys chimney NNS 40404 2983 15 were be VBD 40404 2983 16 toppled topple VBN 40404 2983 17 over over RB 40404 2983 18 , , , 40404 2983 19 and and CC 40404 2983 20 in in IN 40404 2983 21 all all PDT 40404 2983 22 the the DT 40404 2983 23 city city NN 40404 2983 24 scarcely scarcely RB 40404 2983 25 a a DT 40404 2983 26 building building NN 40404 2983 27 was be VBD 40404 2983 28 left leave VBN 40404 2983 29 without without IN 40404 2983 30 serious serious JJ 40404 2983 31 injury injury NN 40404 2983 32 . . . 40404 2984 1 In in IN 40404 2984 2 the the DT 40404 2984 3 vicinity vicinity NN 40404 2984 4 of of IN 40404 2984 5 Charleston Charleston NNP 40404 2984 6 railways railway NNS 40404 2984 7 were be VBD 40404 2984 8 twisted twist VBN 40404 2984 9 and and CC 40404 2984 10 trains train NNS 40404 2984 11 derailed derail VBD 40404 2984 12 . . . 40404 2985 1 Fissures fissure NNS 40404 2985 2 opened open VBN 40404 2985 3 in in IN 40404 2985 4 the the DT 40404 2985 5 loose loose JJ 40404 2985 6 superficial superficial JJ 40404 2985 7 deposits deposit NNS 40404 2985 8 , , , 40404 2985 9 and and CC 40404 2985 10 in in IN 40404 2985 11 places place NNS 40404 2985 12 spouted spout VBN 40404 2985 13 water water NN 40404 2985 14 mingled mingle VBN 40404 2985 15 with with IN 40404 2985 16 sand sand NN 40404 2985 17 from from IN 40404 2985 18 shallow shallow JJ 40404 2985 19 underlying underlie VBG 40404 2985 20 aquifers aquifer NNS 40404 2985 21 . . . 40404 2986 1 The the DT 40404 2986 2 point point NN 40404 2986 3 of of IN 40404 2986 4 origin origin NN 40404 2986 5 , , , 40404 2986 6 or or CC 40404 2986 7 _ _ NNP 40404 2986 8 focus focus NN 40404 2986 9 _ _ NNP 40404 2986 10 , , , 40404 2986 11 of of IN 40404 2986 12 the the DT 40404 2986 13 earthquake earthquake NN 40404 2986 14 was be VBD 40404 2986 15 inferred infer VBN 40404 2986 16 from from IN 40404 2986 17 subsequent subsequent JJ 40404 2986 18 investigations investigation NNS 40404 2986 19 to to TO 40404 2986 20 be be VB 40404 2986 21 a a DT 40404 2986 22 rent rent NN 40404 2986 23 in in IN 40404 2986 24 the the DT 40404 2986 25 rocks rock NNS 40404 2986 26 about about RB 40404 2986 27 twelve twelve CD 40404 2986 28 miles mile NNS 40404 2986 29 beneath beneath IN 40404 2986 30 the the DT 40404 2986 31 surface surface NN 40404 2986 32 . . . 40404 2987 1 From from IN 40404 2987 2 the the DT 40404 2987 3 center center NN 40404 2987 4 of of IN 40404 2987 5 greatest great JJS 40404 2987 6 disturbance disturbance NN 40404 2987 7 , , , 40404 2987 8 which which WDT 40404 2987 9 lay lie VBD 40404 2987 10 above above IN 40404 2987 11 the the DT 40404 2987 12 focus focus NN 40404 2987 13 , , , 40404 2987 14 a a DT 40404 2987 15 few few JJ 40404 2987 16 miles mile NNS 40404 2987 17 northwest northwest RB 40404 2987 18 of of IN 40404 2987 19 the the DT 40404 2987 20 city city NN 40404 2987 21 , , , 40404 2987 22 the the DT 40404 2987 23 surface surface NN 40404 2987 24 shock shock NN 40404 2987 25 traveled travel VBD 40404 2987 26 outward outward RB 40404 2987 27 in in IN 40404 2987 28 every every DT 40404 2987 29 direction direction NN 40404 2987 30 , , , 40404 2987 31 with with IN 40404 2987 32 decreasing decrease VBG 40404 2987 33 effects effect NNS 40404 2987 34 , , , 40404 2987 35 at at IN 40404 2987 36 the the DT 40404 2987 37 rate rate NN 40404 2987 38 of of IN 40404 2987 39 nearly nearly RB 40404 2987 40 two two CD 40404 2987 41 hundred hundred CD 40404 2987 42 miles mile NNS 40404 2987 43 per per IN 40404 2987 44 minute minute NN 40404 2987 45 . . . 40404 2988 1 It -PRON- PRP 40404 2988 2 was be VBD 40404 2988 3 felt feel VBN 40404 2988 4 from from IN 40404 2988 5 Boston Boston NNP 40404 2988 6 to to IN 40404 2988 7 Cuba Cuba NNP 40404 2988 8 , , , 40404 2988 9 and and CC 40404 2988 10 from from IN 40404 2988 11 eastern eastern JJ 40404 2988 12 Iowa Iowa NNP 40404 2988 13 to to IN 40404 2988 14 the the DT 40404 2988 15 Bermudas Bermudas NNP 40404 2988 16 , , , 40404 2988 17 over over IN 40404 2988 18 a a DT 40404 2988 19 circular circular JJ 40404 2988 20 area area NN 40404 2988 21 whose whose WP$ 40404 2988 22 diameter diameter NN 40404 2988 23 was be VBD 40404 2988 24 a a DT 40404 2988 25 thousand thousand CD 40404 2988 26 miles mile NNS 40404 2988 27 . . . 40404 2989 1 An an DT 40404 2989 2 earthquake earthquake NN 40404 2989 3 is be VBZ 40404 2989 4 transmitted transmit VBN 40404 2989 5 from from IN 40404 2989 6 the the DT 40404 2989 7 focus focus NN 40404 2989 8 through through IN 40404 2989 9 the the DT 40404 2989 10 elastic elastic JJ 40404 2989 11 rocks rock NNS 40404 2989 12 of of IN 40404 2989 13 the the DT 40404 2989 14 crust crust NN 40404 2989 15 , , , 40404 2989 16 as as IN 40404 2989 17 a a DT 40404 2989 18 wave wave NN 40404 2989 19 , , , 40404 2989 20 or or CC 40404 2989 21 series series NN 40404 2989 22 of of IN 40404 2989 23 waves wave NNS 40404 2989 24 , , , 40404 2989 25 of of IN 40404 2989 26 compression compression NN 40404 2989 27 and and CC 40404 2989 28 rarefaction rarefaction NN 40404 2989 29 , , , 40404 2989 30 much much RB 40404 2989 31 as as IN 40404 2989 32 a a DT 40404 2989 33 sound sound JJ 40404 2989 34 wave wave NN 40404 2989 35 is be VBZ 40404 2989 36 transmitted transmit VBN 40404 2989 37 through through IN 40404 2989 38 the the DT 40404 2989 39 elastic elastic JJ 40404 2989 40 medium medium NN 40404 2989 41 of of IN 40404 2989 42 the the DT 40404 2989 43 air air NN 40404 2989 44 . . . 40404 2990 1 Each each DT 40404 2990 2 earth earth NN 40404 2990 3 particle particle NN 40404 2990 4 vibrates vibrate VBZ 40404 2990 5 with with IN 40404 2990 6 exceeding exceed VBG 40404 2990 7 swiftness swiftness NN 40404 2990 8 , , , 40404 2990 9 but but CC 40404 2990 10 over over IN 40404 2990 11 a a DT 40404 2990 12 very very RB 40404 2990 13 short short JJ 40404 2990 14 path path NN 40404 2990 15 . . . 40404 2991 1 The the DT 40404 2991 2 swing swing NN 40404 2991 3 of of IN 40404 2991 4 a a DT 40404 2991 5 particle particle NN 40404 2991 6 in in IN 40404 2991 7 firm firm JJ 40404 2991 8 rock rock NN 40404 2991 9 seldom seldom RB 40404 2991 10 exceeds exceed VBZ 40404 2991 11 one one CD 40404 2991 12 tenth tenth NN 40404 2991 13 of of IN 40404 2991 14 an an DT 40404 2991 15 inch inch NN 40404 2991 16 in in IN 40404 2991 17 ordinary ordinary JJ 40404 2991 18 earthquakes earthquake NNS 40404 2991 19 , , , 40404 2991 20 and and CC 40404 2991 21 when when WRB 40404 2991 22 it -PRON- PRP 40404 2991 23 reaches reach VBZ 40404 2991 24 one one CD 40404 2991 25 half half NN 40404 2991 26 an an DT 40404 2991 27 inch inch NN 40404 2991 28 and and CC 40404 2991 29 an an DT 40404 2991 30 inch inch NN 40404 2991 31 , , , 40404 2991 32 the the DT 40404 2991 33 movement movement NN 40404 2991 34 becomes become VBZ 40404 2991 35 dangerous dangerous JJ 40404 2991 36 and and CC 40404 2991 37 destructive destructive JJ 40404 2991 38 . . . 40404 2992 1 [ [ -LRB- 40404 2992 2 Illustration illustration NN 40404 2992 3 : : : 40404 2992 4 Fig Fig NNP 40404 2992 5 . . . 40404 2993 1 210 210 CD 40404 2993 2 . . . 40404 2994 1 Block Block NNP 40404 2994 2 of of IN 40404 2994 3 the the DT 40404 2994 4 Earth Earth NNP 40404 2994 5 's 's POS 40404 2994 6 Crust crust NN 40404 2994 7 shaken shake VBN 40404 2994 8 by by IN 40404 2994 9 an an DT 40404 2994 10 Earthquake Earthquake NNP 40404 2994 11 _ _ NNP 40404 2994 12 x x NNP 40404 2994 13 _ _ NNP 40404 2994 14 , , , 40404 2994 15 focus focus NN 40404 2994 16 ; ; : 40404 2994 17 _ _ NNP 40404 2994 18 a a DT 40404 2994 19 _ _ NNP 40404 2994 20 , , , 40404 2994 21 _ _ NNP 40404 2994 22 b b NNP 40404 2994 23 _ _ NNP 40404 2994 24 , , , 40404 2994 25 _ _ NNP 40404 2994 26 c c NNP 40404 2994 27 _ _ NNP 40404 2994 28 , , , 40404 2994 29 _ _ NNP 40404 2994 30 d d NNP 40404 2994 31 _ _ NNP 40404 2994 32 , , , 40404 2994 33 successive successive JJ 40404 2994 34 spheroidal spheroidal JJ 40404 2994 35 waves wave NNS 40404 2994 36 in in IN 40404 2994 37 the the DT 40404 2994 38 crust crust NN 40404 2994 39 ; ; : 40404 2994 40 _ _ NNP 40404 2994 41 a a DT 40404 2994 42 ´ ´ CD 40404 2994 43 _ _ NNP 40404 2994 44 , , , 40404 2994 45 _ _ NNP 40404 2994 46 b b NNP 40404 2994 47 ´ ´ CD 40404 2994 48 _ _ NNP 40404 2994 49 , , , 40404 2994 50 _ _ NNP 40404 2994 51 c c NNP 40404 2994 52 ´ ´ CD 40404 2994 53 _ _ NNP 40404 2994 54 , , , 40404 2994 55 _ _ NNP 40404 2994 56 d d NNP 40404 2994 57 ´ ´ CD 40404 2994 58 _ _ NNP 40404 2994 59 , , , 40404 2994 60 successive successive JJ 40404 2994 61 surface surface NN 40404 2994 62 waves wave NNS 40404 2994 63 produced produce VBN 40404 2994 64 by by IN 40404 2994 65 the the DT 40404 2994 66 outcropping outcropping NN 40404 2994 67 of of IN 40404 2994 68 _ _ NNP 40404 2994 69 a a DT 40404 2994 70 _ _ NNP 40404 2994 71 , , , 40404 2994 72 _ _ NNP 40404 2994 73 b b NNP 40404 2994 74 _ _ NNP 40404 2994 75 , , , 40404 2994 76 _ _ NNP 40404 2994 77 c c NNP 40404 2994 78 _ _ NNP 40404 2994 79 , , , 40404 2994 80 and and CC 40404 2994 81 _ _ NNP 40404 2994 82 d d NNP 40404 2994 83 _ _ NNP 40404 2994 84 ] ] -RRB- 40404 2994 85 The the DT 40404 2994 86 velocity velocity NN 40404 2994 87 of of IN 40404 2994 88 earthquake earthquake NN 40404 2994 89 waves wave NNS 40404 2994 90 , , , 40404 2994 91 like like IN 40404 2994 92 that that DT 40404 2994 93 of of IN 40404 2994 94 all all DT 40404 2994 95 elastic elastic JJ 40404 2994 96 waves wave NNS 40404 2994 97 , , , 40404 2994 98 varies vary VBZ 40404 2994 99 with with IN 40404 2994 100 the the DT 40404 2994 101 temperature temperature NN 40404 2994 102 and and CC 40404 2994 103 elasticity elasticity NN 40404 2994 104 of of IN 40404 2994 105 the the DT 40404 2994 106 medium medium NN 40404 2994 107 . . . 40404 2995 1 In in IN 40404 2995 2 the the DT 40404 2995 3 deep deep JJ 40404 2995 4 , , , 40404 2995 5 hot hot JJ 40404 2995 6 , , , 40404 2995 7 elastic elastic JJ 40404 2995 8 rocks rock NNS 40404 2995 9 they -PRON- PRP 40404 2995 10 speed speed VBP 40404 2995 11 faster fast RBR 40404 2995 12 than than IN 40404 2995 13 in in IN 40404 2995 14 the the DT 40404 2995 15 cold cold JJ 40404 2995 16 and and CC 40404 2995 17 broken broken JJ 40404 2995 18 rocks rock NNS 40404 2995 19 near near IN 40404 2995 20 the the DT 40404 2995 21 surface surface NN 40404 2995 22 . . . 40404 2996 1 The the DT 40404 2996 2 deeper deep JJR 40404 2996 3 the the DT 40404 2996 4 point point NN 40404 2996 5 of of IN 40404 2996 6 origin origin NN 40404 2996 7 and and CC 40404 2996 8 the the DT 40404 2996 9 more more RBR 40404 2996 10 violent violent JJ 40404 2996 11 the the DT 40404 2996 12 initial initial JJ 40404 2996 13 shock shock NN 40404 2996 14 , , , 40404 2996 15 the the DT 40404 2996 16 faster fast RBR 40404 2996 17 and and CC 40404 2996 18 farther farther RB 40404 2996 19 do do VBP 40404 2996 20 the the DT 40404 2996 21 vibrations vibration NNS 40404 2996 22 run run VB 40404 2996 23 . . . 40404 2997 1 Great great JJ 40404 2997 2 earthquakes earthquake NNS 40404 2997 3 , , , 40404 2997 4 caused cause VBN 40404 2997 5 by by IN 40404 2997 6 some some DT 40404 2997 7 sudden sudden JJ 40404 2997 8 displacement displacement NN 40404 2997 9 or or CC 40404 2997 10 some some DT 40404 2997 11 violent violent JJ 40404 2997 12 rending rending NN 40404 2997 13 of of IN 40404 2997 14 the the DT 40404 2997 15 rocks rock NNS 40404 2997 16 , , , 40404 2997 17 shake shake VB 40404 2997 18 the the DT 40404 2997 19 entire entire JJ 40404 2997 20 planet planet NN 40404 2997 21 . . . 40404 2998 1 Their -PRON- PRP$ 40404 2998 2 waves wave NNS 40404 2998 3 run run VBP 40404 2998 4 through through IN 40404 2998 5 the the DT 40404 2998 6 body body NN 40404 2998 7 of of IN 40404 2998 8 the the DT 40404 2998 9 earth earth NN 40404 2998 10 at at IN 40404 2998 11 the the DT 40404 2998 12 rate rate NN 40404 2998 13 of of IN 40404 2998 14 about about RB 40404 2998 15 three three CD 40404 2998 16 hundred hundred CD 40404 2998 17 and and CC 40404 2998 18 fifty fifty CD 40404 2998 19 miles mile NNS 40404 2998 20 a a DT 40404 2998 21 minute minute NN 40404 2998 22 , , , 40404 2998 23 and and CC 40404 2998 24 more more RBR 40404 2998 25 slowly slowly RB 40404 2998 26 round round IN 40404 2998 27 its -PRON- PRP$ 40404 2998 28 circumference circumference NN 40404 2998 29 , , , 40404 2998 30 registering register VBG 40404 2998 31 their -PRON- PRP$ 40404 2998 32 arrival arrival NN 40404 2998 33 at at IN 40404 2998 34 opposite opposite JJ 40404 2998 35 sides side NNS 40404 2998 36 of of IN 40404 2998 37 the the DT 40404 2998 38 globe globe NN 40404 2998 39 on on IN 40404 2998 40 the the DT 40404 2998 41 exceedingly exceedingly RB 40404 2998 42 delicate delicate JJ 40404 2998 43 instruments instrument NNS 40404 2998 44 of of IN 40404 2998 45 modern modern JJ 40404 2998 46 earthquake earthquake NN 40404 2998 47 observatories observatory NNS 40404 2998 48 . . . 40404 2999 1 = = NFP 40404 2999 2 Geological Geological NNP 40404 2999 3 effects.= effects.= NNP 40404 2999 4 Even even RB 40404 2999 5 great great JJ 40404 2999 6 earthquakes earthquake NNS 40404 2999 7 seldom seldom RB 40404 2999 8 produce produce VBP 40404 2999 9 geological geological JJ 40404 2999 10 effects effect NNS 40404 2999 11 of of IN 40404 2999 12 much much JJ 40404 2999 13 importance importance NN 40404 2999 14 . . . 40404 3000 1 Landslides landslide NNS 40404 3000 2 may may MD 40404 3000 3 be be VB 40404 3000 4 shaken shake VBN 40404 3000 5 down down RP 40404 3000 6 from from IN 40404 3000 7 the the DT 40404 3000 8 sides side NNS 40404 3000 9 of of IN 40404 3000 10 mountains mountain NNS 40404 3000 11 and and CC 40404 3000 12 hills hill NNS 40404 3000 13 , , , 40404 3000 14 and and CC 40404 3000 15 cracks crack NNS 40404 3000 16 may may MD 40404 3000 17 be be VB 40404 3000 18 opened open VBN 40404 3000 19 in in IN 40404 3000 20 the the DT 40404 3000 21 surface surface NN 40404 3000 22 deposits deposit NNS 40404 3000 23 of of IN 40404 3000 24 plains plain NNS 40404 3000 25 ; ; : 40404 3000 26 but but CC 40404 3000 27 the the DT 40404 3000 28 transient transient JJ 40404 3000 29 shiver shiver NN 40404 3000 30 , , , 40404 3000 31 which which WDT 40404 3000 32 may may MD 40404 3000 33 overturn overturn VB 40404 3000 34 cities city NNS 40404 3000 35 and and CC 40404 3000 36 destroy destroy VB 40404 3000 37 thousands thousand NNS 40404 3000 38 of of IN 40404 3000 39 human human JJ 40404 3000 40 lives life NNS 40404 3000 41 , , , 40404 3000 42 runs run VBZ 40404 3000 43 through through IN 40404 3000 44 the the DT 40404 3000 45 crust crust NN 40404 3000 46 and and CC 40404 3000 47 leaves leave VBZ 40404 3000 48 it -PRON- PRP 40404 3000 49 much much RB 40404 3000 50 the the DT 40404 3000 51 same same JJ 40404 3000 52 as as IN 40404 3000 53 before before RB 40404 3000 54 . . . 40404 3001 1 = = NFP 40404 3001 2 Earthquakes earthquake NNS 40404 3001 3 attending attend VBG 40404 3001 4 great great JJ 40404 3001 5 displacements.= displacements.= CD 40404 3001 6 Great great JJ 40404 3001 7 earthquakes earthquake NNS 40404 3001 8 frequently frequently RB 40404 3001 9 attend attend VBP 40404 3001 10 the the DT 40404 3001 11 displacement displacement NN 40404 3001 12 of of IN 40404 3001 13 large large JJ 40404 3001 14 masses masse NNS 40404 3001 15 of of IN 40404 3001 16 the the DT 40404 3001 17 rocks rock NNS 40404 3001 18 of of IN 40404 3001 19 the the DT 40404 3001 20 crust crust NN 40404 3001 21 . . . 40404 3002 1 In in IN 40404 3002 2 1822 1822 CD 40404 3002 3 the the DT 40404 3002 4 coast coast NN 40404 3002 5 of of IN 40404 3002 6 Chile Chile NNP 40404 3002 7 was be VBD 40404 3002 8 suddenly suddenly RB 40404 3002 9 raised raise VBN 40404 3002 10 three three CD 40404 3002 11 or or CC 40404 3002 12 four four CD 40404 3002 13 feet foot NNS 40404 3002 14 , , , 40404 3002 15 and and CC 40404 3002 16 the the DT 40404 3002 17 rise rise NN 40404 3002 18 was be VBD 40404 3002 19 five five CD 40404 3002 20 or or CC 40404 3002 21 six six CD 40404 3002 22 feet foot NNS 40404 3002 23 a a DT 40404 3002 24 mile mile NN 40404 3002 25 inland inland RB 40404 3002 26 . . . 40404 3003 1 In in IN 40404 3003 2 1835 1835 CD 40404 3003 3 the the DT 40404 3003 4 same same JJ 40404 3003 5 region region NN 40404 3003 6 was be VBD 40404 3003 7 again again RB 40404 3003 8 upheaved upheaved JJ 40404 3003 9 from from IN 40404 3003 10 two two CD 40404 3003 11 to to TO 40404 3003 12 ten ten CD 40404 3003 13 feet foot NNS 40404 3003 14 . . . 40404 3004 1 In in IN 40404 3004 2 each each DT 40404 3004 3 instance instance NN 40404 3004 4 a a DT 40404 3004 5 destructive destructive JJ 40404 3004 6 earthquake earthquake NN 40404 3004 7 was be VBD 40404 3004 8 felt feel VBN 40404 3004 9 for for IN 40404 3004 10 one one CD 40404 3004 11 thousand thousand CD 40404 3004 12 miles mile NNS 40404 3004 13 along along IN 40404 3004 14 the the DT 40404 3004 15 coast coast NN 40404 3004 16 . . . 40404 3005 1 The the DT 40404 3005 2 great great JJ 40404 3005 3 California California NNP 40404 3005 4 earthquake earthquake NN 40404 3005 5 of of IN 40404 3005 6 1906.= 1906.= CD 40404 3005 7 A a DT 40404 3005 8 sudden sudden JJ 40404 3005 9 dislocation dislocation NN 40404 3005 10 occurred occur VBD 40404 3005 11 in in IN 40404 3005 12 1906 1906 CD 40404 3005 13 along along IN 40404 3005 14 an an DT 40404 3005 15 ancient ancient JJ 40404 3005 16 fault fault NN 40404 3005 17 plane plane NN 40404 3005 18 which which WDT 40404 3005 19 extends extend VBZ 40404 3005 20 for for IN 40404 3005 21 300 300 CD 40404 3005 22 miles mile NNS 40404 3005 23 through through IN 40404 3005 24 western western JJ 40404 3005 25 California California NNP 40404 3005 26 . . . 40404 3006 1 The the DT 40404 3006 2 vertical vertical JJ 40404 3006 3 displacement displacement NN 40404 3006 4 did do VBD 40404 3006 5 not not RB 40404 3006 6 exceed exceed VB 40404 3006 7 four four CD 40404 3006 8 feet foot NNS 40404 3006 9 , , , 40404 3006 10 while while IN 40404 3006 11 the the DT 40404 3006 12 horizontal horizontal JJ 40404 3006 13 shifting shifting NN 40404 3006 14 reached reach VBD 40404 3006 15 a a DT 40404 3006 16 maximum maximum NN 40404 3006 17 of of IN 40404 3006 18 twenty twenty CD 40404 3006 19 feet foot NNS 40404 3006 20 . . . 40404 3007 1 Fences fence NNS 40404 3007 2 , , , 40404 3007 3 rows row NNS 40404 3007 4 of of IN 40404 3007 5 trees tree NNS 40404 3007 6 , , , 40404 3007 7 and and CC 40404 3007 8 roads road NNS 40404 3007 9 which which WDT 40404 3007 10 crossed cross VBD 40404 3007 11 the the DT 40404 3007 12 fault fault NN 40404 3007 13 were be VBD 40404 3007 14 broken break VBN 40404 3007 15 and and CC 40404 3007 16 offset offset VBN 40404 3007 17 . . . 40404 3008 1 The the DT 40404 3008 2 latitude latitude NN 40404 3008 3 and and CC 40404 3008 4 longitude longitude NN 40404 3008 5 of of IN 40404 3008 6 all all DT 40404 3008 7 points point NNS 40404 3008 8 over over IN 40404 3008 9 thousands thousand NNS 40404 3008 10 of of IN 40404 3008 11 square square JJ 40404 3008 12 miles mile NNS 40404 3008 13 were be VBD 40404 3008 14 changed change VBN 40404 3008 15 . . . 40404 3009 1 On on IN 40404 3009 2 each each DT 40404 3009 3 side side NN 40404 3009 4 of of IN 40404 3009 5 the the DT 40404 3009 6 fault fault NN 40404 3009 7 the the DT 40404 3009 8 earth earth NN 40404 3009 9 blocks block NNS 40404 3009 10 moved move VBN 40404 3009 11 in in IN 40404 3009 12 opposite opposite JJ 40404 3009 13 directions direction NNS 40404 3009 14 , , , 40404 3009 15 the the DT 40404 3009 16 block block NN 40404 3009 17 on on IN 40404 3009 18 the the DT 40404 3009 19 east east NNP 40404 3009 20 moving move VBG 40404 3009 21 southward southward RB 40404 3009 22 and and CC 40404 3009 23 that that IN 40404 3009 24 on on IN 40404 3009 25 the the DT 40404 3009 26 west west NNP 40404 3009 27 moving move VBG 40404 3009 28 northward northward RB 40404 3009 29 and and CC 40404 3009 30 to to TO 40404 3009 31 twice twice PDT 40404 3009 32 the the DT 40404 3009 33 distance distance NN 40404 3009 34 . . . 40404 3010 1 East East NNP 40404 3010 2 and and CC 40404 3010 3 west west NN 40404 3010 4 of of IN 40404 3010 5 the the DT 40404 3010 6 fault fault NN 40404 3010 7 the the DT 40404 3010 8 movements movement NNS 40404 3010 9 lessened lessen VBN 40404 3010 10 with with IN 40404 3010 11 increasing increase VBG 40404 3010 12 distance distance NN 40404 3010 13 from from IN 40404 3010 14 it -PRON- PRP 40404 3010 15 . . . 40404 3011 1 This this DT 40404 3011 2 sudden sudden JJ 40404 3011 3 slip slip NN 40404 3011 4 set set VBD 40404 3011 5 up up RP 40404 3011 6 an an DT 40404 3011 7 earthquake earthquake NN 40404 3011 8 lasting last VBG 40404 3011 9 sixty sixty CD 40404 3011 10 - - HYPH 40404 3011 11 five five CD 40404 3011 12 seconds second NNS 40404 3011 13 , , , 40404 3011 14 followed follow VBN 40404 3011 15 by by IN 40404 3011 16 minor minor JJ 40404 3011 17 shocks shock NNS 40404 3011 18 recurring recur VBG 40404 3011 19 for for IN 40404 3011 20 many many JJ 40404 3011 21 days day NNS 40404 3011 22 . . . 40404 3012 1 In in IN 40404 3012 2 places place NNS 40404 3012 3 the the DT 40404 3012 4 jar jar NN 40404 3012 5 shook shake VBD 40404 3012 6 down down RP 40404 3012 7 the the DT 40404 3012 8 waste waste NN 40404 3012 9 on on IN 40404 3012 10 steep steep JJ 40404 3012 11 hillsides hillside NNS 40404 3012 12 , , , 40404 3012 13 snapped snap VBD 40404 3012 14 off off RP 40404 3012 15 or or CC 40404 3012 16 uprooted uproot VBD 40404 3012 17 trees tree NNS 40404 3012 18 , , , 40404 3012 19 and and CC 40404 3012 20 rocked rock VBD 40404 3012 21 houses house NNS 40404 3012 22 from from IN 40404 3012 23 their -PRON- PRP$ 40404 3012 24 foundations foundation NNS 40404 3012 25 or or CC 40404 3012 26 threw throw VBD 40404 3012 27 down down RP 40404 3012 28 their -PRON- PRP$ 40404 3012 29 walls wall NNS 40404 3012 30 or or CC 40404 3012 31 chimneys chimney NNS 40404 3012 32 . . . 40404 3013 1 The the DT 40404 3013 2 water water NN 40404 3013 3 mains main NNS 40404 3013 4 of of IN 40404 3013 5 San San NNP 40404 3013 6 Francisco Francisco NNP 40404 3013 7 were be VBD 40404 3013 8 broken break VBN 40404 3013 9 , , , 40404 3013 10 and and CC 40404 3013 11 the the DT 40404 3013 12 city city NN 40404 3013 13 was be VBD 40404 3013 14 thus thus RB 40404 3013 15 left leave VBN 40404 3013 16 defenseless defenseless JJ 40404 3013 17 against against IN 40404 3013 18 a a DT 40404 3013 19 conflagration conflagration NN 40404 3013 20 which which WDT 40404 3013 21 destroyed destroy VBD 40404 3013 22 $ $ $ 40404 3013 23 500,000,000 500,000,000 CD 40404 3013 24 worth worth NN 40404 3013 25 of of IN 40404 3013 26 property property NN 40404 3013 27 . . . 40404 3014 1 The the DT 40404 3014 2 destructive destructive JJ 40404 3014 3 effects effect NNS 40404 3014 4 varied vary VBN 40404 3014 5 with with IN 40404 3014 6 the the DT 40404 3014 7 nature nature NN 40404 3014 8 of of IN 40404 3014 9 the the DT 40404 3014 10 ground ground NN 40404 3014 11 . . . 40404 3015 1 Buildings building NNS 40404 3015 2 on on IN 40404 3015 3 firm firm JJ 40404 3015 4 rock rock NN 40404 3015 5 suffered suffer VBD 40404 3015 6 least least RBS 40404 3015 7 , , , 40404 3015 8 while while IN 40404 3015 9 those those DT 40404 3015 10 on on IN 40404 3015 11 deep deep JJ 40404 3015 12 alluvium alluvium NN 40404 3015 13 were be VBD 40404 3015 14 severely severely RB 40404 3015 15 shaken shake VBN 40404 3015 16 by by IN 40404 3015 17 the the DT 40404 3015 18 undulations undulation NNS 40404 3015 19 , , , 40404 3015 20 like like IN 40404 3015 21 water water NN 40404 3015 22 waves wave NNS 40404 3015 23 , , , 40404 3015 24 into into IN 40404 3015 25 which which WDT 40404 3015 26 the the DT 40404 3015 27 loose loose JJ 40404 3015 28 material material NN 40404 3015 29 was be VBD 40404 3015 30 thrown throw VBN 40404 3015 31 . . . 40404 3016 1 Well well RB 40404 3016 2 - - HYPH 40404 3016 3 braced brace VBN 40404 3016 4 steel steel NN 40404 3016 5 structures structure NNS 40404 3016 6 , , , 40404 3016 7 even even RB 40404 3016 8 of of IN 40404 3016 9 the the DT 40404 3016 10 largest large JJS 40404 3016 11 size size NN 40404 3016 12 , , , 40404 3016 13 were be VBD 40404 3016 14 earthquake earthquake NN 40404 3016 15 proof proof NN 40404 3016 16 , , , 40404 3016 17 and and CC 40404 3016 18 buildings building NNS 40404 3016 19 of of IN 40404 3016 20 other other JJ 40404 3016 21 materials material NNS 40404 3016 22 , , , 40404 3016 23 when when WRB 40404 3016 24 honestly honestly RB 40404 3016 25 built build VBN 40404 3016 26 and and CC 40404 3016 27 intelligently intelligently RB 40404 3016 28 designed design VBN 40404 3016 29 to to TO 40404 3016 30 withstand withstand VB 40404 3016 31 earthquake earthquake NN 40404 3016 32 shocks shock NNS 40404 3016 33 , , , 40404 3016 34 usually usually RB 40404 3016 35 suffered suffer VBN 40404 3016 36 little little JJ 40404 3016 37 injury injury NN 40404 3016 38 . . . 40404 3017 1 The the DT 40404 3017 2 length length NN 40404 3017 3 of of IN 40404 3017 4 the the DT 40404 3017 5 intervals interval NNS 40404 3017 6 between between IN 40404 3017 7 severe severe JJ 40404 3017 8 earthquakes earthquake NNS 40404 3017 9 in in IN 40404 3017 10 western western JJ 40404 3017 11 California California NNP 40404 3017 12 shows show VBZ 40404 3017 13 that that IN 40404 3017 14 a a DT 40404 3017 15 great great JJ 40404 3017 16 dislocation dislocation NN 40404 3017 17 so so RB 40404 3017 18 relieves relieve VBZ 40404 3017 19 the the DT 40404 3017 20 stresses stress NNS 40404 3017 21 of of IN 40404 3017 22 the the DT 40404 3017 23 adjacent adjacent JJ 40404 3017 24 earth earth NN 40404 3017 25 blocks block VBZ 40404 3017 26 that that IN 40404 3017 27 scores score NNS 40404 3017 28 of of IN 40404 3017 29 years year NNS 40404 3017 30 may may MD 40404 3017 31 elapse elapse VB 40404 3017 32 before before IN 40404 3017 33 the the DT 40404 3017 34 stresses stress NNS 40404 3017 35 again again RB 40404 3017 36 accumulate accumulate VBP 40404 3017 37 and and CC 40404 3017 38 cause cause VB 40404 3017 39 another another DT 40404 3017 40 dislocation dislocation NN 40404 3017 41 . . . 40404 3018 1 Perhaps perhaps RB 40404 3018 2 the the DT 40404 3018 3 most most RBS 40404 3018 4 violent violent JJ 40404 3018 5 earthquake earthquake NN 40404 3018 6 which which WDT 40404 3018 7 ever ever RB 40404 3018 8 visited visit VBD 40404 3018 9 the the DT 40404 3018 10 United United NNP 40404 3018 11 States States NNP 40404 3018 12 attended attend VBD 40404 3018 13 the the DT 40404 3018 14 depression depression NN 40404 3018 15 , , , 40404 3018 16 in in IN 40404 3018 17 1812 1812 CD 40404 3018 18 , , , 40404 3018 19 of of IN 40404 3018 20 a a DT 40404 3018 21 region region NN 40404 3018 22 seventy seventy CD 40404 3018 23 - - HYPH 40404 3018 24 five five CD 40404 3018 25 miles mile NNS 40404 3018 26 long long JJ 40404 3018 27 and and CC 40404 3018 28 thirty thirty CD 40404 3018 29 miles mile NNS 40404 3018 30 wide wide JJ 40404 3018 31 , , , 40404 3018 32 near near IN 40404 3018 33 New New NNP 40404 3018 34 Madrid Madrid NNP 40404 3018 35 , , , 40404 3018 36 Mo. Mo. NNP 40404 3019 1 Much much JJ 40404 3019 2 of of IN 40404 3019 3 the the DT 40404 3019 4 area area NN 40404 3019 5 was be VBD 40404 3019 6 converted convert VBN 40404 3019 7 into into IN 40404 3019 8 swamps swamp NNS 40404 3019 9 and and CC 40404 3019 10 some some DT 40404 3019 11 into into IN 40404 3019 12 shallow shallow JJ 40404 3019 13 lakes lake NNS 40404 3019 14 , , , 40404 3019 15 while while IN 40404 3019 16 a a DT 40404 3019 17 region region NN 40404 3019 18 twenty twenty CD 40404 3019 19 miles mile NNS 40404 3019 20 in in IN 40404 3019 21 diameter diameter NN 40404 3019 22 was be VBD 40404 3019 23 bulged bulge VBN 40404 3019 24 up up RP 40404 3019 25 athwart athwart NNP 40404 3019 26 the the DT 40404 3019 27 channel channel NN 40404 3019 28 of of IN 40404 3019 29 the the DT 40404 3019 30 Mississippi Mississippi NNP 40404 3019 31 . . . 40404 3020 1 Slight slight JJ 40404 3020 2 quakes quake NNS 40404 3020 3 are be VBP 40404 3020 4 still still RB 40404 3020 5 felt feel VBN 40404 3020 6 in in IN 40404 3020 7 this this DT 40404 3020 8 region region NN 40404 3020 9 from from IN 40404 3020 10 time time NN 40404 3020 11 to to IN 40404 3020 12 time time NN 40404 3020 13 , , , 40404 3020 14 showing show VBG 40404 3020 15 that that IN 40404 3020 16 the the DT 40404 3020 17 strains strain NNS 40404 3020 18 to to TO 40404 3020 19 which which WDT 40404 3020 20 the the DT 40404 3020 21 dislocation dislocation NN 40404 3020 22 was be VBD 40404 3020 23 due due JJ 40404 3020 24 have have VBP 40404 3020 25 not not RB 40404 3020 26 yet yet RB 40404 3020 27 been be VBN 40404 3020 28 fully fully RB 40404 3020 29 relieved relieve VBN 40404 3020 30 . . . 40404 3021 1 = = NFP 40404 3021 2 Earthquakes earthquake NNS 40404 3021 3 originating originate VBG 40404 3021 4 beneath beneath IN 40404 3021 5 the the DT 40404 3021 6 sea.= sea.= NNP 40404 3021 7 Many many JJ 40404 3021 8 earthquakes earthquake NNS 40404 3021 9 originate originate VBP 40404 3021 10 beneath beneath IN 40404 3021 11 the the DT 40404 3021 12 sea sea NN 40404 3021 13 , , , 40404 3021 14 and and CC 40404 3021 15 in in IN 40404 3021 16 a a DT 40404 3021 17 number number NN 40404 3021 18 of of IN 40404 3021 19 examples example NNS 40404 3021 20 they -PRON- PRP 40404 3021 21 seem seem VBP 40404 3021 22 to to TO 40404 3021 23 have have VB 40404 3021 24 been be VBN 40404 3021 25 accompanied accompany VBN 40404 3021 26 , , , 40404 3021 27 as as IN 40404 3021 28 soundings sounding NNS 40404 3021 29 indicate indicate VBP 40404 3021 30 , , , 40404 3021 31 by by IN 40404 3021 32 local local JJ 40404 3021 33 subsidences subsidence NNS 40404 3021 34 of of IN 40404 3021 35 the the DT 40404 3021 36 ocean ocean NN 40404 3021 37 bottom bottom NN 40404 3021 38 . . . 40404 3022 1 There there EX 40404 3022 2 have have VBP 40404 3022 3 been be VBN 40404 3022 4 instances instance NNS 40404 3022 5 where where WRB 40404 3022 6 the the DT 40404 3022 7 displacement displacement NN 40404 3022 8 has have VBZ 40404 3022 9 been be VBN 40404 3022 10 sufficient sufficient JJ 40404 3022 11 to to TO 40404 3022 12 set set VB 40404 3022 13 the the DT 40404 3022 14 entire entire JJ 40404 3022 15 Pacific Pacific NNP 40404 3022 16 Ocean Ocean NNP 40404 3022 17 pulsating pulsate VBG 40404 3022 18 for for IN 40404 3022 19 many many JJ 40404 3022 20 hours hour NNS 40404 3022 21 . . . 40404 3023 1 In in IN 40404 3023 2 mid mid NNP 40404 3023 3 ocean ocean NN 40404 3023 4 the the DT 40404 3023 5 wave wave NN 40404 3023 6 thus thus RB 40404 3023 7 produced produce VBN 40404 3023 8 has have VBZ 40404 3023 9 a a DT 40404 3023 10 height height NN 40404 3023 11 of of IN 40404 3023 12 only only RB 40404 3023 13 a a DT 40404 3023 14 few few JJ 40404 3023 15 feet foot NNS 40404 3023 16 , , , 40404 3023 17 while while IN 40404 3023 18 it -PRON- PRP 40404 3023 19 may may MD 40404 3023 20 be be VB 40404 3023 21 two two CD 40404 3023 22 hundred hundred CD 40404 3023 23 miles mile NNS 40404 3023 24 in in IN 40404 3023 25 width width NN 40404 3023 26 . . . 40404 3024 1 On on IN 40404 3024 2 shores shore NNS 40404 3024 3 near near IN 40404 3024 4 the the DT 40404 3024 5 point point NN 40404 3024 6 of of IN 40404 3024 7 origin origin NN 40404 3024 8 destructive destructive JJ 40404 3024 9 waves wave NNS 40404 3024 10 two two CD 40404 3024 11 or or CC 40404 3024 12 three three CD 40404 3024 13 score score NN 40404 3024 14 feet foot NNS 40404 3024 15 in in IN 40404 3024 16 height height NN 40404 3024 17 roll roll NN 40404 3024 18 in in RP 40404 3024 19 , , , 40404 3024 20 and and CC 40404 3024 21 on on IN 40404 3024 22 coasts coast NNS 40404 3024 23 thousands thousand NNS 40404 3024 24 of of IN 40404 3024 25 miles mile NNS 40404 3024 26 distant distant VBP 40404 3024 27 the the DT 40404 3024 28 expiring expire VBG 40404 3024 29 undulations undulation NNS 40404 3024 30 may may MD 40404 3024 31 be be VB 40404 3024 32 still still RB 40404 3024 33 able able JJ 40404 3024 34 to to TO 40404 3024 35 record record VB 40404 3024 36 themselves -PRON- PRP 40404 3024 37 on on IN 40404 3024 38 tidal tidal JJ 40404 3024 39 gauges gauge NNS 40404 3024 40 . . . 40404 3025 1 = = NFP 40404 3025 2 Distribution distribution NN 40404 3025 3 of of IN 40404 3025 4 earthquakes.= earthquakes.= CD 40404 3025 5 Every every DT 40404 3025 6 half half NN 40404 3025 7 hour hour NN 40404 3025 8 some some DT 40404 3025 9 considerable considerable JJ 40404 3025 10 area area NN 40404 3025 11 of of IN 40404 3025 12 the the DT 40404 3025 13 earth earth NN 40404 3025 14 's 's POS 40404 3025 15 surface surface NN 40404 3025 16 is be VBZ 40404 3025 17 sensibly sensibly RB 40404 3025 18 shaken shake VBN 40404 3025 19 by by IN 40404 3025 20 an an DT 40404 3025 21 earthquake earthquake NN 40404 3025 22 , , , 40404 3025 23 but but CC 40404 3025 24 earthquakes earthquake NNS 40404 3025 25 are be VBP 40404 3025 26 by by IN 40404 3025 27 no no DT 40404 3025 28 means means NN 40404 3025 29 uniformly uniformly RB 40404 3025 30 distributed distribute VBN 40404 3025 31 over over IN 40404 3025 32 the the DT 40404 3025 33 globe globe NN 40404 3025 34 . . . 40404 3026 1 As as IN 40404 3026 2 we -PRON- PRP 40404 3026 3 might may MD 40404 3026 4 infer infer VB 40404 3026 5 from from IN 40404 3026 6 what what WP 40404 3026 7 we -PRON- PRP 40404 3026 8 know know VBP 40404 3026 9 as as IN 40404 3026 10 to to IN 40404 3026 11 their -PRON- PRP$ 40404 3026 12 causes cause NNS 40404 3026 13 , , , 40404 3026 14 earthquakes earthquake NNS 40404 3026 15 are be VBP 40404 3026 16 most most RBS 40404 3026 17 frequent frequent JJ 40404 3026 18 in in IN 40404 3026 19 regions region NNS 40404 3026 20 now now RB 40404 3026 21 undergoing undergoing JJ 40404 3026 22 deformation deformation NN 40404 3026 23 . . . 40404 3027 1 Such such JJ 40404 3027 2 are be VBP 40404 3027 3 young young JJ 40404 3027 4 rising rise VBG 40404 3027 5 mountain mountain NN 40404 3027 6 ranges range NNS 40404 3027 7 , , , 40404 3027 8 fault fault NN 40404 3027 9 lines line NNS 40404 3027 10 where where WRB 40404 3027 11 readjustments readjustment NNS 40404 3027 12 recur recur VBP 40404 3027 13 from from IN 40404 3027 14 time time NN 40404 3027 15 to to IN 40404 3027 16 time time NN 40404 3027 17 , , , 40404 3027 18 and and CC 40404 3027 19 the the DT 40404 3027 20 slopes slope NNS 40404 3027 21 of of IN 40404 3027 22 suboceanic suboceanic JJ 40404 3027 23 depressions depression NNS 40404 3027 24 whose whose WP$ 40404 3027 25 steepness steepness NN 40404 3027 26 suggests suggest VBZ 40404 3027 27 that that IN 40404 3027 28 subsidence subsidence NN 40404 3027 29 may may MD 40404 3027 30 there there EX 40404 3027 31 be be VB 40404 3027 32 in in IN 40404 3027 33 progress progress NN 40404 3027 34 . . . 40404 3028 1 Earthquakes earthquake NNS 40404 3028 2 , , , 40404 3028 3 often often RB 40404 3028 4 of of IN 40404 3028 5 extreme extreme JJ 40404 3028 6 severity severity NN 40404 3028 7 , , , 40404 3028 8 frequently frequently RB 40404 3028 9 visit visit VBP 40404 3028 10 the the DT 40404 3028 11 lofty lofty JJ 40404 3028 12 and and CC 40404 3028 13 young young JJ 40404 3028 14 ranges range NNS 40404 3028 15 of of IN 40404 3028 16 the the DT 40404 3028 17 Andes Andes NNP 40404 3028 18 , , , 40404 3028 19 while while IN 40404 3028 20 they -PRON- PRP 40404 3028 21 are be VBP 40404 3028 22 little little RB 40404 3028 23 known know VBN 40404 3028 24 in in IN 40404 3028 25 the the DT 40404 3028 26 subdued subdued JJ 40404 3028 27 old old JJ 40404 3028 28 mountains mountain NNS 40404 3028 29 of of IN 40404 3028 30 Brazil Brazil NNP 40404 3028 31 . . . 40404 3029 1 The the DT 40404 3029 2 Highlands Highlands NNPS 40404 3029 3 of of IN 40404 3029 4 Scotland Scotland NNP 40404 3029 5 are be VBP 40404 3029 6 crossed cross VBN 40404 3029 7 by by IN 40404 3029 8 a a DT 40404 3029 9 deep deep JJ 40404 3029 10 and and CC 40404 3029 11 singularly singularly RB 40404 3029 12 straight straight JJ 40404 3029 13 depression depression NN 40404 3029 14 called call VBD 40404 3029 15 the the DT 40404 3029 16 Great Great NNP 40404 3029 17 Glen Glen NNP 40404 3029 18 , , , 40404 3029 19 which which WDT 40404 3029 20 has have VBZ 40404 3029 21 been be VBN 40404 3029 22 excavated excavate VBN 40404 3029 23 along along IN 40404 3029 24 a a DT 40404 3029 25 very very RB 40404 3029 26 ancient ancient JJ 40404 3029 27 line line NN 40404 3029 28 of of IN 40404 3029 29 dislocation dislocation NN 40404 3029 30 . . . 40404 3030 1 The the DT 40404 3030 2 earthquakes earthquake NNS 40404 3030 3 which which WDT 40404 3030 4 occur occur VBP 40404 3030 5 from from IN 40404 3030 6 time time NN 40404 3030 7 to to IN 40404 3030 8 time time NN 40404 3030 9 in in IN 40404 3030 10 this this DT 40404 3030 11 region region NN 40404 3030 12 , , , 40404 3030 13 such such JJ 40404 3030 14 as as IN 40404 3030 15 the the DT 40404 3030 16 Inverness Inverness NNP 40404 3030 17 earthquake earthquake NN 40404 3030 18 in in IN 40404 3030 19 1891 1891 CD 40404 3030 20 , , , 40404 3030 21 are be VBP 40404 3030 22 referred refer VBN 40404 3030 23 to to IN 40404 3030 24 slight slight JJ 40404 3030 25 slips slip NNS 40404 3030 26 along along IN 40404 3030 27 this this DT 40404 3030 28 fault fault NN 40404 3030 29 plane plane NN 40404 3030 30 . . . 40404 3031 1 In in IN 40404 3031 2 Japan Japan NNP 40404 3031 3 , , , 40404 3031 4 earthquakes earthquake NNS 40404 3031 5 are be VBP 40404 3031 6 very very RB 40404 3031 7 frequent frequent JJ 40404 3031 8 . . . 40404 3032 1 More More JJR 40404 3032 2 than than IN 40404 3032 3 a a DT 40404 3032 4 thousand thousand CD 40404 3032 5 are be VBP 40404 3032 6 recorded record VBN 40404 3032 7 every every DT 40404 3032 8 year year NN 40404 3032 9 , , , 40404 3032 10 and and CC 40404 3032 11 twenty twenty CD 40404 3032 12 - - HYPH 40404 3032 13 nine nine CD 40404 3032 14 world world NN 40404 3032 15 - - HYPH 40404 3032 16 shaking shake VBG 40404 3032 17 earthquakes earthquake NNS 40404 3032 18 occurred occur VBD 40404 3032 19 in in IN 40404 3032 20 the the DT 40404 3032 21 three three CD 40404 3032 22 years year NNS 40404 3032 23 ending end VBG 40404 3032 24 with with IN 40404 3032 25 1901 1901 CD 40404 3032 26 . . . 40404 3033 1 They -PRON- PRP 40404 3033 2 originate originate VBP 40404 3033 3 , , , 40404 3033 4 for for IN 40404 3033 5 the the DT 40404 3033 6 most most JJS 40404 3033 7 part part NN 40404 3033 8 , , , 40404 3033 9 well well RB 40404 3033 10 down down RB 40404 3033 11 on on IN 40404 3033 12 the the DT 40404 3033 13 eastern eastern JJ 40404 3033 14 flank flank NNP 40404 3033 15 of of IN 40404 3033 16 the the DT 40404 3033 17 earth earth NN 40404 3033 18 fold fold VB 40404 3033 19 whose whose WP$ 40404 3033 20 summit summit NN 40404 3033 21 is be VBZ 40404 3033 22 the the DT 40404 3033 23 mountainous mountainous JJ 40404 3033 24 crest crest NN 40404 3033 25 of of IN 40404 3033 26 the the DT 40404 3033 27 islands island NNS 40404 3033 28 , , , 40404 3033 29 and and CC 40404 3033 30 which which WDT 40404 3033 31 plunges plunge NNS 40404 3033 32 steeply steeply RB 40404 3033 33 beneath beneath IN 40404 3033 34 the the DT 40404 3033 35 sea sea NN 40404 3033 36 to to IN 40404 3033 37 the the DT 40404 3033 38 abyss abyss NN 40404 3033 39 of of IN 40404 3033 40 the the DT 40404 3033 41 Tuscarora Tuscarora NNP 40404 3033 42 Deep Deep NNP 40404 3033 43 . . . 40404 3034 1 = = NFP 40404 3034 2 Minor minor JJ 40404 3034 3 causes cause NNS 40404 3034 4 of of IN 40404 3034 5 earthquakes.= earthquakes.= CD 40404 3034 6 Since since IN 40404 3034 7 any any DT 40404 3034 8 concussion concussion NN 40404 3034 9 within within IN 40404 3034 10 the the DT 40404 3034 11 crust crust NN 40404 3034 12 sets set VBZ 40404 3034 13 up up RP 40404 3034 14 an an DT 40404 3034 15 earth earth NN 40404 3034 16 jar jar NN 40404 3034 17 , , , 40404 3034 18 there there EX 40404 3034 19 are be VBP 40404 3034 20 several several JJ 40404 3034 21 minor minor JJ 40404 3034 22 causes cause NNS 40404 3034 23 of of IN 40404 3034 24 earthquakes earthquake NNS 40404 3034 25 , , , 40404 3034 26 such such JJ 40404 3034 27 as as IN 40404 3034 28 volcanic volcanic JJ 40404 3034 29 explosions explosion NNS 40404 3034 30 and and CC 40404 3034 31 even even RB 40404 3034 32 the the DT 40404 3034 33 collapse collapse NN 40404 3034 34 of of IN 40404 3034 35 the the DT 40404 3034 36 roofs roof NNS 40404 3034 37 of of IN 40404 3034 38 caves cave NNS 40404 3034 39 . . . 40404 3035 1 The the DT 40404 3035 2 earthquakes earthquake NNS 40404 3035 3 which which WDT 40404 3035 4 attend attend VBP 40404 3035 5 the the DT 40404 3035 6 eruption eruption NN 40404 3035 7 of of IN 40404 3035 8 volcanoes volcano NNS 40404 3035 9 are be VBP 40404 3035 10 local local JJ 40404 3035 11 , , , 40404 3035 12 even even RB 40404 3035 13 in in IN 40404 3035 14 the the DT 40404 3035 15 case case NN 40404 3035 16 of of IN 40404 3035 17 the the DT 40404 3035 18 most most RBS 40404 3035 19 violent violent JJ 40404 3035 20 volcanic volcanic JJ 40404 3035 21 paroxysms paroxysm NNS 40404 3035 22 known know VBN 40404 3035 23 . . . 40404 3036 1 When when WRB 40404 3036 2 the the DT 40404 3036 3 top top NN 40404 3036 4 of of IN 40404 3036 5 a a DT 40404 3036 6 volcano volcano NN 40404 3036 7 has have VBZ 40404 3036 8 been be VBN 40404 3036 9 blown blow VBN 40404 3036 10 to to IN 40404 3036 11 fragments fragment NNS 40404 3036 12 , , , 40404 3036 13 the the DT 40404 3036 14 accompanying accompany VBG 40404 3036 15 earth earth NN 40404 3036 16 shock shock NN 40404 3036 17 has have VBZ 40404 3036 18 sometimes sometimes RB 40404 3036 19 not not RB 40404 3036 20 been be VBN 40404 3036 21 felt feel VBN 40404 3036 22 more more JJR 40404 3036 23 than than IN 40404 3036 24 twenty twenty CD 40404 3036 25 - - HYPH 40404 3036 26 five five CD 40404 3036 27 miles mile NNS 40404 3036 28 away away RB 40404 3036 29 . . . 40404 3037 1 = = NFP 40404 3037 2 Depth depth NN 40404 3037 3 of of IN 40404 3037 4 focus.= focus.= CD 40404 3037 5 The the DT 40404 3037 6 focus focus NN 40404 3037 7 of of IN 40404 3037 8 the the DT 40404 3037 9 Charleston Charleston NNP 40404 3037 10 earthquake earthquake NN 40404 3037 11 , , , 40404 3037 12 estimated estimate VBN 40404 3037 13 at at IN 40404 3037 14 about about RB 40404 3037 15 twelve twelve CD 40404 3037 16 miles mile NNS 40404 3037 17 below below IN 40404 3037 18 the the DT 40404 3037 19 surface surface NN 40404 3037 20 , , , 40404 3037 21 was be VBD 40404 3037 22 exceptionally exceptionally RB 40404 3037 23 deep deep JJ 40404 3037 24 . . . 40404 3038 1 Volcanic volcanic JJ 40404 3038 2 earthquakes earthquake NNS 40404 3038 3 are be VBP 40404 3038 4 particularly particularly RB 40404 3038 5 shallow shallow JJ 40404 3038 6 , , , 40404 3038 7 and and CC 40404 3038 8 probably probably RB 40404 3038 9 no no DT 40404 3038 10 earthquakes earthquake NNS 40404 3038 11 known know VBN 40404 3038 12 have have VBP 40404 3038 13 started start VBN 40404 3038 14 at at IN 40404 3038 15 a a DT 40404 3038 16 greater great JJR 40404 3038 17 depth depth NN 40404 3038 18 than than IN 40404 3038 19 fifteen fifteen CD 40404 3038 20 or or CC 40404 3038 21 twenty twenty CD 40404 3038 22 miles mile NNS 40404 3038 23 . . . 40404 3039 1 This this DT 40404 3039 2 distance distance NN 40404 3039 3 is be VBZ 40404 3039 4 so so RB 40404 3039 5 slight slight JJ 40404 3039 6 compared compare VBN 40404 3039 7 with with IN 40404 3039 8 the the DT 40404 3039 9 earth earth NN 40404 3039 10 's 's POS 40404 3039 11 radius radius NN 40404 3039 12 that that IN 40404 3039 13 we -PRON- PRP 40404 3039 14 may may MD 40404 3039 15 say say VB 40404 3039 16 that that IN 40404 3039 17 earthquakes earthquake NNS 40404 3039 18 are be VBP 40404 3039 19 but but CC 40404 3039 20 skin skin NN 40404 3039 21 - - HYPH 40404 3039 22 deep deep JJ 40404 3039 23 . . . 40404 3040 1 Should Should MD 40404 3040 2 you -PRON- PRP 40404 3040 3 expect expect VB 40404 3040 4 the the DT 40404 3040 5 velocity velocity NN 40404 3040 6 of of IN 40404 3040 7 an an DT 40404 3040 8 earthquake earthquake NN 40404 3040 9 to to TO 40404 3040 10 be be VB 40404 3040 11 greater great JJR 40404 3040 12 in in IN 40404 3040 13 a a DT 40404 3040 14 peneplain peneplain NN 40404 3040 15 or or CC 40404 3040 16 in in IN 40404 3040 17 a a DT 40404 3040 18 river river NN 40404 3040 19 delta delta NN 40404 3040 20 ? ? . 40404 3041 1 After after IN 40404 3041 2 an an DT 40404 3041 3 earthquake earthquake NN 40404 3041 4 , , , 40404 3041 5 piles pile NNS 40404 3041 6 on on IN 40404 3041 7 which which WDT 40404 3041 8 buildings building NNS 40404 3041 9 rested rest VBN 40404 3041 10 were be VBD 40404 3041 11 found find VBN 40404 3041 12 driven drive VBN 40404 3041 13 into into IN 40404 3041 14 the the DT 40404 3041 15 ground ground NN 40404 3041 16 , , , 40404 3041 17 and and CC 40404 3041 18 chimneys chimney NNS 40404 3041 19 crushed crush VBN 40404 3041 20 at at IN 40404 3041 21 base base NN 40404 3041 22 . . . 40404 3042 1 From from IN 40404 3042 2 what what WDT 40404 3042 3 direction direction NN 40404 3042 4 did do VBD 40404 3042 5 the the DT 40404 3042 6 shock shock NN 40404 3042 7 come come VB 40404 3042 8 ? ? . 40404 3043 1 Chimneys chimney NNS 40404 3043 2 standing stand VBG 40404 3043 3 on on IN 40404 3043 4 the the DT 40404 3043 5 south south JJ 40404 3043 6 walls wall NNS 40404 3043 7 of of IN 40404 3043 8 houses house NNS 40404 3043 9 toppled topple VBN 40404 3043 10 over over RP 40404 3043 11 on on IN 40404 3043 12 the the DT 40404 3043 13 roof roof NN 40404 3043 14 . . . 40404 3044 1 Should Should MD 40404 3044 2 you -PRON- PRP 40404 3044 3 infer infer VB 40404 3044 4 that that IN 40404 3044 5 the the DT 40404 3044 6 shock shock NN 40404 3044 7 in in IN 40404 3044 8 this this DT 40404 3044 9 case case NN 40404 3044 10 came come VBD 40404 3044 11 from from IN 40404 3044 12 the the DT 40404 3044 13 north north NN 40404 3044 14 or or CC 40404 3044 15 south south NN 40404 3044 16 ? ? . 40404 3045 1 How how WRB 40404 3045 2 should should MD 40404 3045 3 you -PRON- PRP 40404 3045 4 expect expect VB 40404 3045 5 a a DT 40404 3045 6 shock shock NN 40404 3045 7 from from IN 40404 3045 8 the the DT 40404 3045 9 east east NN 40404 3045 10 to to TO 40404 3045 11 affect affect VB 40404 3045 12 pictures picture NNS 40404 3045 13 hanging hang VBG 40404 3045 14 on on IN 40404 3045 15 the the DT 40404 3045 16 east east NN 40404 3045 17 and and CC 40404 3045 18 the the DT 40404 3045 19 west west JJ 40404 3045 20 walls wall NNS 40404 3045 21 of of IN 40404 3045 22 a a DT 40404 3045 23 room room NN 40404 3045 24 ? ? . 40404 3046 1 how how WRB 40404 3046 2 the the DT 40404 3046 3 pictures picture NNS 40404 3046 4 hanging hang VBG 40404 3046 5 on on IN 40404 3046 6 the the DT 40404 3046 7 north north NN 40404 3046 8 and and CC 40404 3046 9 the the DT 40404 3046 10 south south JJ 40404 3046 11 walls wall NNS 40404 3046 12 ? ? . 40404 3047 1 In in IN 40404 3047 2 parts part NNS 40404 3047 3 of of IN 40404 3047 4 the the DT 40404 3047 5 country country NN 40404 3047 6 , , , 40404 3047 7 as as IN 40404 3047 8 in in IN 40404 3047 9 southwestern southwestern JJ 40404 3047 10 Wisconsin Wisconsin NNP 40404 3047 11 , , , 40404 3047 12 slender slender NN 40404 3047 13 erosion erosion NN 40404 3047 14 pillars pillar NNS 40404 3047 15 , , , 40404 3047 16 or or CC 40404 3047 17 " " `` 40404 3047 18 monuments monument NNS 40404 3047 19 , , , 40404 3047 20 " " '' 40404 3047 21 are be VBP 40404 3047 22 common common JJ 40404 3047 23 . . . 40404 3048 1 What what WDT 40404 3048 2 inference inference NN 40404 3048 3 could could MD 40404 3048 4 you -PRON- PRP 40404 3048 5 draw draw VB 40404 3048 6 as as IN 40404 3048 7 to to IN 40404 3048 8 the the DT 40404 3048 9 occurrence occurrence NN 40404 3048 10 in in IN 40404 3048 11 such such JJ 40404 3048 12 regions region NNS 40404 3048 13 of of IN 40404 3048 14 severe severe JJ 40404 3048 15 earthquakes earthquake NNS 40404 3048 16 in in IN 40404 3048 17 the the DT 40404 3048 18 recent recent JJ 40404 3048 19 past past NN 40404 3048 20 ? ? . 40404 3049 1 CHAPTER chapter NN 40404 3049 2 XI XI NNP 40404 3049 3 VOLCANOES VOLCANOES NNP 40404 3049 4 Connected connect VBN 40404 3049 5 with with IN 40404 3049 6 movements movement NNS 40404 3049 7 of of IN 40404 3049 8 the the DT 40404 3049 9 earth earth NN 40404 3049 10 's 's POS 40404 3049 11 crust crust NN 40404 3049 12 which which WDT 40404 3049 13 take take VBP 40404 3049 14 place place NN 40404 3049 15 so so RB 40404 3049 16 slowly slowly RB 40404 3049 17 that that IN 40404 3049 18 they -PRON- PRP 40404 3049 19 can can MD 40404 3049 20 be be VB 40404 3049 21 inferred infer VBN 40404 3049 22 only only RB 40404 3049 23 from from IN 40404 3049 24 their -PRON- PRP$ 40404 3049 25 effects effect NNS 40404 3049 26 is be VBZ 40404 3049 27 one one CD 40404 3049 28 of of IN 40404 3049 29 the the DT 40404 3049 30 most most RBS 40404 3049 31 rapid rapid JJ 40404 3049 32 and and CC 40404 3049 33 impressive impressive JJ 40404 3049 34 of of IN 40404 3049 35 all all DT 40404 3049 36 geological geological JJ 40404 3049 37 processes,--the processes,--the DT 40404 3049 38 extrusion extrusion NN 40404 3049 39 of of IN 40404 3049 40 molten molten JJ 40404 3049 41 rock rock NN 40404 3049 42 from from IN 40404 3049 43 beneath beneath IN 40404 3049 44 the the DT 40404 3049 45 surface surface NN 40404 3049 46 of of IN 40404 3049 47 the the DT 40404 3049 48 earth earth NN 40404 3049 49 , , , 40404 3049 50 giving give VBG 40404 3049 51 rise rise NN 40404 3049 52 to to IN 40404 3049 53 all all PDT 40404 3049 54 the the DT 40404 3049 55 various various JJ 40404 3049 56 phenomena phenomenon NNS 40404 3049 57 of of IN 40404 3049 58 volcanoes volcano NNS 40404 3049 59 . . . 40404 3050 1 In in IN 40404 3050 2 a a DT 40404 3050 3 volcano volcano NN 40404 3050 4 , , , 40404 3050 5 molten molten JJ 40404 3050 6 rock rock NN 40404 3050 7 from from IN 40404 3050 8 a a DT 40404 3050 9 region region NN 40404 3050 10 deep deep RB 40404 3050 11 below below RB 40404 3050 12 , , , 40404 3050 13 which which WDT 40404 3050 14 we -PRON- PRP 40404 3050 15 may may MD 40404 3050 16 call call VB 40404 3050 17 its -PRON- PRP$ 40404 3050 18 reservoir reservoir NN 40404 3050 19 , , , 40404 3050 20 ascends ascend VBZ 40404 3050 21 through through IN 40404 3050 22 a a DT 40404 3050 23 pipe pipe NN 40404 3050 24 or or CC 40404 3050 25 fissure fissure NN 40404 3050 26 to to IN 40404 3050 27 the the DT 40404 3050 28 surface surface NN 40404 3050 29 . . . 40404 3051 1 The the DT 40404 3051 2 materials material NNS 40404 3051 3 erupted erupt VBD 40404 3051 4 may may MD 40404 3051 5 be be VB 40404 3051 6 spread spread VBN 40404 3051 7 over over IN 40404 3051 8 vast vast JJ 40404 3051 9 areas area NNS 40404 3051 10 , , , 40404 3051 11 or or CC 40404 3051 12 , , , 40404 3051 13 as as IN 40404 3051 14 is be VBZ 40404 3051 15 commonly commonly RB 40404 3051 16 the the DT 40404 3051 17 case case NN 40404 3051 18 , , , 40404 3051 19 may may MD 40404 3051 20 accumulate accumulate VB 40404 3051 21 about about IN 40404 3051 22 the the DT 40404 3051 23 opening opening NN 40404 3051 24 , , , 40404 3051 25 forming form VBG 40404 3051 26 a a DT 40404 3051 27 conical conical JJ 40404 3051 28 pile pile NN 40404 3051 29 known know VBN 40404 3051 30 as as IN 40404 3051 31 the the DT 40404 3051 32 volcanic volcanic JJ 40404 3051 33 cone cone NN 40404 3051 34 . . . 40404 3052 1 It -PRON- PRP 40404 3052 2 is be VBZ 40404 3052 3 to to IN 40404 3052 4 this this DT 40404 3052 5 cone cone NN 40404 3052 6 that that IN 40404 3052 7 popular popular JJ 40404 3052 8 usage usage NN 40404 3052 9 refers refer VBZ 40404 3052 10 the the DT 40404 3052 11 word word NN 40404 3052 12 _ _ NNP 40404 3052 13 volcano volcano NN 40404 3052 14 _ _ NNP 40404 3052 15 ; ; : 40404 3052 16 but but CC 40404 3052 17 the the DT 40404 3052 18 cone cone NN 40404 3052 19 is be VBZ 40404 3052 20 simply simply RB 40404 3052 21 a a DT 40404 3052 22 conspicuous conspicuous JJ 40404 3052 23 part part NN 40404 3052 24 of of IN 40404 3052 25 the the DT 40404 3052 26 volcanic volcanic JJ 40404 3052 27 mechanism mechanism NN 40404 3052 28 whose whose WP$ 40404 3052 29 still still RB 40404 3052 30 more more RBR 40404 3052 31 important important JJ 40404 3052 32 parts part NNS 40404 3052 33 , , , 40404 3052 34 the the DT 40404 3052 35 reservoir reservoir NN 40404 3052 36 and and CC 40404 3052 37 the the DT 40404 3052 38 pipe pipe NN 40404 3052 39 , , , 40404 3052 40 are be VBP 40404 3052 41 hidden hide VBN 40404 3052 42 from from IN 40404 3052 43 view view NN 40404 3052 44 . . . 40404 3053 1 Volcanic volcanic JJ 40404 3053 2 eruptions eruption NNS 40404 3053 3 are be VBP 40404 3053 4 of of IN 40404 3053 5 two two CD 40404 3053 6 types,--_effusive types,--_effusive JJ 40404 3053 7 _ _ NNP 40404 3053 8 eruptions eruption NNS 40404 3053 9 , , , 40404 3053 10 in in IN 40404 3053 11 which which WDT 40404 3053 12 molten molten JJ 40404 3053 13 rock rock NN 40404 3053 14 wells well NNS 40404 3053 15 up up RP 40404 3053 16 from from IN 40404 3053 17 below below IN 40404 3053 18 and and CC 40404 3053 19 flows flow VBZ 40404 3053 20 forth forth RB 40404 3053 21 in in IN 40404 3053 22 streams stream NNS 40404 3053 23 of of IN 40404 3053 24 _ _ NNP 40404 3053 25 lava lava NN 40404 3053 26 _ _ NNP 40404 3053 27 ( ( -LRB- 40404 3053 28 a a DT 40404 3053 29 comprehensive comprehensive JJ 40404 3053 30 term term NN 40404 3053 31 applied apply VBN 40404 3053 32 to to IN 40404 3053 33 all all DT 40404 3053 34 kinds kind NNS 40404 3053 35 of of IN 40404 3053 36 rock rock NN 40404 3053 37 emitted emit VBN 40404 3053 38 from from IN 40404 3053 39 volcanoes volcano NNS 40404 3053 40 in in IN 40404 3053 41 a a DT 40404 3053 42 molten molten JJ 40404 3053 43 state state NN 40404 3053 44 ) ) -RRB- 40404 3053 45 , , , 40404 3053 46 and and CC 40404 3053 47 _ _ NNP 40404 3053 48 explosive explosive JJ 40404 3053 49 _ _ NNP 40404 3053 50 eruptions eruption NNS 40404 3053 51 , , , 40404 3053 52 in in IN 40404 3053 53 which which WDT 40404 3053 54 the the DT 40404 3053 55 rock rock NN 40404 3053 56 is be VBZ 40404 3053 57 blown blow VBN 40404 3053 58 out out RP 40404 3053 59 in in IN 40404 3053 60 fragments fragment NNS 40404 3053 61 great great JJ 40404 3053 62 and and CC 40404 3053 63 small small JJ 40404 3053 64 by by IN 40404 3053 65 the the DT 40404 3053 66 expansive expansive JJ 40404 3053 67 force force NN 40404 3053 68 of of IN 40404 3053 69 steam steam NN 40404 3053 70 . . . 40404 3054 1 Eruptions eruption NNS 40404 3054 2 of of IN 40404 3054 3 the the DT 40404 3054 4 Effusive Effusive NNP 40404 3054 5 Type Type NNP 40404 3054 6 = = NFP 40404 3054 7 The the DT 40404 3054 8 Hawaiian hawaiian JJ 40404 3054 9 volcanoes.= volcanoes.= NNS 40404 3054 10 The the DT 40404 3054 11 Hawaiian Hawaiian NNP 40404 3054 12 Islands Islands NNPS 40404 3054 13 are be VBP 40404 3054 14 all all RB 40404 3054 15 volcanic volcanic JJ 40404 3054 16 in in IN 40404 3054 17 origin origin NN 40404 3054 18 , , , 40404 3054 19 and and CC 40404 3054 20 have have VB 40404 3054 21 a a DT 40404 3054 22 linear linear JJ 40404 3054 23 arrangement arrangement NN 40404 3054 24 characteristic characteristic NN 40404 3054 25 of of IN 40404 3054 26 many many JJ 40404 3054 27 volcanic volcanic JJ 40404 3054 28 groups group NNS 40404 3054 29 in in IN 40404 3054 30 all all DT 40404 3054 31 parts part NNS 40404 3054 32 of of IN 40404 3054 33 the the DT 40404 3054 34 world world NN 40404 3054 35 . . . 40404 3055 1 They -PRON- PRP 40404 3055 2 are be VBP 40404 3055 3 strung string VBN 40404 3055 4 along along IN 40404 3055 5 a a DT 40404 3055 6 northwest northwest JJ 40404 3055 7 - - HYPH 40404 3055 8 southeast southeast NN 40404 3055 9 line line NN 40404 3055 10 , , , 40404 3055 11 their -PRON- PRP$ 40404 3055 12 volcanoes volcano NNS 40404 3055 13 standing stand VBG 40404 3055 14 in in IN 40404 3055 15 two two CD 40404 3055 16 parallel parallel JJ 40404 3055 17 rows row NNS 40404 3055 18 as as IN 40404 3055 19 if if IN 40404 3055 20 reared rear VBN 40404 3055 21 along along IN 40404 3055 22 two two CD 40404 3055 23 adjacent adjacent JJ 40404 3055 24 lines line NNS 40404 3055 25 of of IN 40404 3055 26 fracture fracture NN 40404 3055 27 or or CC 40404 3055 28 folding folding NN 40404 3055 29 . . . 40404 3056 1 In in IN 40404 3056 2 the the DT 40404 3056 3 northwestern northwestern JJ 40404 3056 4 islands island NNS 40404 3056 5 the the DT 40404 3056 6 volcanoes volcano NNS 40404 3056 7 have have VBP 40404 3056 8 long long RB 40404 3056 9 been be VBN 40404 3056 10 extinct extinct VBN 40404 3056 11 and and CC 40404 3056 12 are be VBP 40404 3056 13 worn wear VBN 40404 3056 14 low low JJ 40404 3056 15 by by IN 40404 3056 16 erosion erosion NN 40404 3056 17 . . . 40404 3057 1 In in IN 40404 3057 2 the the DT 40404 3057 3 southeastern southeastern JJ 40404 3057 4 island island NN 40404 3057 5 . . . 40404 3058 1 Hawaii Hawaii NNP 40404 3058 2 , , , 40404 3058 3 three three CD 40404 3058 4 volcanoes volcano NNS 40404 3058 5 are be VBP 40404 3058 6 still still RB 40404 3058 7 active active JJ 40404 3058 8 and and CC 40404 3058 9 in in IN 40404 3058 10 process process NN 40404 3058 11 of of IN 40404 3058 12 building build VBG 40404 3058 13 . . . 40404 3059 1 Of of IN 40404 3059 2 these these DT 40404 3059 3 Mauna Mauna NNP 40404 3059 4 Loa Loa NNP 40404 3059 5 , , , 40404 3059 6 the the DT 40404 3059 7 monarch monarch NN 40404 3059 8 of of IN 40404 3059 9 volcanoes volcano NNS 40404 3059 10 , , , 40404 3059 11 with with IN 40404 3059 12 a a DT 40404 3059 13 girth girth NN 40404 3059 14 of of IN 40404 3059 15 two two CD 40404 3059 16 hundred hundred CD 40404 3059 17 miles mile NNS 40404 3059 18 and and CC 40404 3059 19 a a DT 40404 3059 20 height height NN 40404 3059 21 of of IN 40404 3059 22 nearly nearly RB 40404 3059 23 fourteen fourteen CD 40404 3059 24 thousand thousand CD 40404 3059 25 feet foot NNS 40404 3059 26 above above IN 40404 3059 27 sea sea NN 40404 3059 28 level level NN 40404 3059 29 , , , 40404 3059 30 is be VBZ 40404 3059 31 a a DT 40404 3059 32 lava lava NN 40404 3059 33 dome dome NN 40404 3059 34 the the DT 40404 3059 35 slope slope NN 40404 3059 36 of of IN 40404 3059 37 whose whose WP$ 40404 3059 38 sides side NNS 40404 3059 39 does do VBZ 40404 3059 40 not not RB 40404 3059 41 average average VB 40404 3059 42 more more JJR 40404 3059 43 than than IN 40404 3059 44 five five CD 40404 3059 45 degrees degree NNS 40404 3059 46 . . . 40404 3060 1 On on IN 40404 3060 2 the the DT 40404 3060 3 summit summit NN 40404 3060 4 is be VBZ 40404 3060 5 an an DT 40404 3060 6 elliptical elliptical JJ 40404 3060 7 basin basin NN 40404 3060 8 ten ten CD 40404 3060 9 miles mile NNS 40404 3060 10 in in IN 40404 3060 11 circumference circumference NN 40404 3060 12 and and CC 40404 3060 13 several several JJ 40404 3060 14 hundred hundred CD 40404 3060 15 feet foot NNS 40404 3060 16 deep deep JJ 40404 3060 17 . . . 40404 3061 1 Concentric concentric JJ 40404 3061 2 cracks crack NNS 40404 3061 3 surround surround VBP 40404 3061 4 the the DT 40404 3061 5 rim rim NN 40404 3061 6 , , , 40404 3061 7 and and CC 40404 3061 8 from from IN 40404 3061 9 time time NN 40404 3061 10 to to IN 40404 3061 11 time time NN 40404 3061 12 the the DT 40404 3061 13 basin basin NN 40404 3061 14 is be VBZ 40404 3061 15 enlarged enlarge VBN 40404 3061 16 as as IN 40404 3061 17 great great JJ 40404 3061 18 slices slice NNS 40404 3061 19 are be VBP 40404 3061 20 detached detach VBN 40404 3061 21 from from IN 40404 3061 22 the the DT 40404 3061 23 vertical vertical JJ 40404 3061 24 walls wall NNS 40404 3061 25 and and CC 40404 3061 26 engulfed engulf VBD 40404 3061 27 . . . 40404 3062 1 Such such PDT 40404 3062 2 a a DT 40404 3062 3 volcanic volcanic JJ 40404 3062 4 basin basin NN 40404 3062 5 , , , 40404 3062 6 formed form VBN 40404 3062 7 by by IN 40404 3062 8 the the DT 40404 3062 9 insinking insinking NN 40404 3062 10 of of IN 40404 3062 11 the the DT 40404 3062 12 top top NN 40404 3062 13 of of IN 40404 3062 14 the the DT 40404 3062 15 cone cone NN 40404 3062 16 , , , 40404 3062 17 is be VBZ 40404 3062 18 called call VBN 40404 3062 19 a a DT 40404 3062 20 _ _ NNP 40404 3062 21 caldera caldera NN 40404 3062 22 _ _ NNP 40404 3062 23 . . . 40404 3063 1 [ [ -LRB- 40404 3063 2 Illustration illustration NN 40404 3063 3 : : : 40404 3063 4 Fig Fig NNP 40404 3063 5 . . . 40404 3064 1 211 211 CD 40404 3064 2 . . . 40404 3065 1 Mauna Mauna NNP 40404 3065 2 Loa Loa NNP 40404 3065 3 ] ] -RRB- 40404 3065 4 [ [ -LRB- 40404 3065 5 Illustration illustration NN 40404 3065 6 : : : 40404 3065 7 Fig Fig NNP 40404 3065 8 . . . 40404 3066 1 212 212 CD 40404 3066 2 . . . 40404 3067 1 Caldera Caldera NNP 40404 3067 2 of of IN 40404 3067 3 Mauna Mauna NNP 40404 3067 4 Loa Loa NNP 40404 3067 5 ] ] -RRB- 40404 3067 6 On on IN 40404 3067 7 the the DT 40404 3067 8 flanks flank NNS 40404 3067 9 of of IN 40404 3067 10 Mauna Mauna NNP 40404 3067 11 Loa Loa NNP 40404 3067 12 , , , 40404 3067 13 four four CD 40404 3067 14 thousand thousand CD 40404 3067 15 feet foot NNS 40404 3067 16 above above IN 40404 3067 17 sea sea NN 40404 3067 18 level level NN 40404 3067 19 , , , 40404 3067 20 lies lie VBZ 40404 3067 21 the the DT 40404 3067 22 caldera caldera NN 40404 3067 23 of of IN 40404 3067 24 Kilauea Kilauea NNP 40404 3067 25 , , , 40404 3067 26 an an DT 40404 3067 27 independent independent JJ 40404 3067 28 volcano volcano NN 40404 3067 29 whose whose WP$ 40404 3067 30 dome dome NN 40404 3067 31 has have VBZ 40404 3067 32 been be VBN 40404 3067 33 joined join VBN 40404 3067 34 to to IN 40404 3067 35 the the DT 40404 3067 36 larger large JJR 40404 3067 37 mountain mountain NN 40404 3067 38 by by IN 40404 3067 39 the the DT 40404 3067 40 gradual gradual JJ 40404 3067 41 growth growth NN 40404 3067 42 of of IN 40404 3067 43 the the DT 40404 3067 44 two two CD 40404 3067 45 . . . 40404 3068 1 In in IN 40404 3068 2 each each DT 40404 3068 3 caldera caldera JJ 40404 3068 4 the the DT 40404 3068 5 floor floor NN 40404 3068 6 , , , 40404 3068 7 which which WDT 40404 3068 8 to to IN 40404 3068 9 the the DT 40404 3068 10 eye eye NN 40404 3068 11 is be VBZ 40404 3068 12 a a DT 40404 3068 13 plain plain NN 40404 3068 14 of of IN 40404 3068 15 black black JJ 40404 3068 16 lava lava NN 40404 3068 17 , , , 40404 3068 18 is be VBZ 40404 3068 19 the the DT 40404 3068 20 congealed congeal VBN 40404 3068 21 surface surface NN 40404 3068 22 of of IN 40404 3068 23 a a DT 40404 3068 24 column column NN 40404 3068 25 of of IN 40404 3068 26 molten molten JJ 40404 3068 27 rock rock NN 40404 3068 28 . . . 40404 3069 1 At at IN 40404 3069 2 times time NNS 40404 3069 3 of of IN 40404 3069 4 an an DT 40404 3069 5 eruption eruption NN 40404 3069 6 lakes lake NNS 40404 3069 7 of of IN 40404 3069 8 boiling boil VBG 40404 3069 9 lava lava NN 40404 3069 10 appear appear NN 40404 3069 11 which which WDT 40404 3069 12 may may MD 40404 3069 13 be be VB 40404 3069 14 compared compare VBN 40404 3069 15 to to IN 40404 3069 16 air air NN 40404 3069 17 holes hole NNS 40404 3069 18 in in IN 40404 3069 19 a a DT 40404 3069 20 frozen frozen JJ 40404 3069 21 river river NN 40404 3069 22 . . . 40404 3070 1 Great great JJ 40404 3070 2 waves wave NNS 40404 3070 3 surge surge VBP 40404 3070 4 up up RP 40404 3070 5 , , , 40404 3070 6 lifting lift VBG 40404 3070 7 tons ton NNS 40404 3070 8 of of IN 40404 3070 9 the the DT 40404 3070 10 fiery fiery JJ 40404 3070 11 liquid liquid NN 40404 3070 12 a a DT 40404 3070 13 score score NN 40404 3070 14 of of IN 40404 3070 15 feet foot NNS 40404 3070 16 in in IN 40404 3070 17 air air NN 40404 3070 18 , , , 40404 3070 19 to to TO 40404 3070 20 fall fall VB 40404 3070 21 back back RB 40404 3070 22 with with IN 40404 3070 23 a a DT 40404 3070 24 mighty mighty JJ 40404 3070 25 plunge plunge NN 40404 3070 26 and and CC 40404 3070 27 roar roar VB 40404 3070 28 , , , 40404 3070 29 and and CC 40404 3070 30 occasionally occasionally RB 40404 3070 31 the the DT 40404 3070 32 lava lava NN 40404 3070 33 rises rise VBZ 40404 3070 34 several several JJ 40404 3070 35 hundred hundred CD 40404 3070 36 feet foot NNS 40404 3070 37 in in IN 40404 3070 38 fountains fountain NNS 40404 3070 39 of of IN 40404 3070 40 dazzling dazzle VBG 40404 3070 41 brightness brightness NN 40404 3070 42 . . . 40404 3071 1 The the DT 40404 3071 2 lava lava NN 40404 3071 3 lakes lake NNS 40404 3071 4 may may MD 40404 3071 5 flood flood VB 40404 3071 6 the the DT 40404 3071 7 floor floor NN 40404 3071 8 of of IN 40404 3071 9 the the DT 40404 3071 10 basin basin NN 40404 3071 11 , , , 40404 3071 12 but but CC 40404 3071 13 in in IN 40404 3071 14 historic historic JJ 40404 3071 15 times time NNS 40404 3071 16 have have VBP 40404 3071 17 never never RB 40404 3071 18 been be VBN 40404 3071 19 known know VBN 40404 3071 20 to to TO 40404 3071 21 fill fill VB 40404 3071 22 it -PRON- PRP 40404 3071 23 and and CC 40404 3071 24 overflow overflow IN 40404 3071 25 the the DT 40404 3071 26 rim rim NN 40404 3071 27 . . . 40404 3072 1 Instead instead RB 40404 3072 2 , , , 40404 3072 3 the the DT 40404 3072 4 heavy heavy JJ 40404 3072 5 column column NN 40404 3072 6 of of IN 40404 3072 7 lava lava NN 40404 3072 8 breaks break VBZ 40404 3072 9 way way NN 40404 3072 10 through through IN 40404 3072 11 the the DT 40404 3072 12 sides side NNS 40404 3072 13 of of IN 40404 3072 14 the the DT 40404 3072 15 mountain mountain NN 40404 3072 16 and and CC 40404 3072 17 discharges discharge NNS 40404 3072 18 in in IN 40404 3072 19 streams stream NNS 40404 3072 20 which which WDT 40404 3072 21 flow flow VBP 40404 3072 22 down down RP 40404 3072 23 the the DT 40404 3072 24 mountain mountain NN 40404 3072 25 slopes slope NNS 40404 3072 26 for for IN 40404 3072 27 a a DT 40404 3072 28 distance distance NN 40404 3072 29 sometimes sometimes RB 40404 3072 30 of of IN 40404 3072 31 as as RB 40404 3072 32 much much JJ 40404 3072 33 as as IN 40404 3072 34 thirty thirty CD 40404 3072 35 - - HYPH 40404 3072 36 five five CD 40404 3072 37 miles mile NNS 40404 3072 38 . . . 40404 3073 1 With with IN 40404 3073 2 the the DT 40404 3073 3 drawing drawing NN 40404 3073 4 off off RP 40404 3073 5 of of IN 40404 3073 6 the the DT 40404 3073 7 lava lava NN 40404 3073 8 the the DT 40404 3073 9 column column NN 40404 3073 10 in in IN 40404 3073 11 the the DT 40404 3073 12 duct duct NN 40404 3073 13 of of IN 40404 3073 14 the the DT 40404 3073 15 volcano volcano NN 40404 3073 16 lowers lower NNS 40404 3073 17 , , , 40404 3073 18 and and CC 40404 3073 19 the the DT 40404 3073 20 floor floor NN 40404 3073 21 of of IN 40404 3073 22 the the DT 40404 3073 23 caldera caldera NN 40404 3073 24 wholly wholly RB 40404 3073 25 or or CC 40404 3073 26 in in IN 40404 3073 27 part part NN 40404 3073 28 subsides subside NNS 40404 3073 29 . . . 40404 3074 1 A a DT 40404 3074 2 black black JJ 40404 3074 3 and and CC 40404 3074 4 steaming steam VBG 40404 3074 5 abyss abyss NN 40404 3074 6 marks mark NNS 40404 3074 7 the the DT 40404 3074 8 place place NN 40404 3074 9 of of IN 40404 3074 10 the the DT 40404 3074 11 lava lava NN 40404 3074 12 lakes lake NNS 40404 3074 13 ( ( -LRB- 40404 3074 14 Fig fig NN 40404 3074 15 . . . 40404 3075 1 213 213 CD 40404 3075 2 ) ) -RRB- 40404 3075 3 . . . 40404 3076 1 After after IN 40404 3076 2 a a DT 40404 3076 3 time time NN 40404 3076 4 the the DT 40404 3076 5 lava lava NN 40404 3076 6 rises rise VBZ 40404 3076 7 in in IN 40404 3076 8 the the DT 40404 3076 9 duct duct NN 40404 3076 10 , , , 40404 3076 11 the the DT 40404 3076 12 floor floor NN 40404 3076 13 is be VBZ 40404 3076 14 floated float VBN 40404 3076 15 higher high JJR 40404 3076 16 , , , 40404 3076 17 and and CC 40404 3076 18 the the DT 40404 3076 19 boiling boil VBG 40404 3076 20 lakes lake NNS 40404 3076 21 reappear reappear NN 40404 3076 22 . . . 40404 3077 1 [ [ -LRB- 40404 3077 2 Illustration illustration NN 40404 3077 3 : : : 40404 3077 4 Fig Fig NNP 40404 3077 5 . . . 40404 3078 1 213 213 CD 40404 3078 2 . . . 40404 3079 1 Portion portion NN 40404 3079 2 of of IN 40404 3079 3 Caldera Caldera NNP 40404 3079 4 of of IN 40404 3079 5 Kilauea Kilauea NNP 40404 3079 6 after after IN 40404 3079 7 Collapse Collapse NNP 40404 3079 8 following follow VBG 40404 3079 9 an an DT 40404 3079 10 Eruption eruption NN 40404 3079 11 ] ] -RRB- 40404 3079 12 The the DT 40404 3079 13 eruptions eruption NNS 40404 3079 14 of of IN 40404 3079 15 the the DT 40404 3079 16 Hawaiian hawaiian JJ 40404 3079 17 volcanoes volcano NNS 40404 3079 18 are be VBP 40404 3079 19 thus thus RB 40404 3079 20 of of IN 40404 3079 21 the the DT 40404 3079 22 effusive effusive JJ 40404 3079 23 type type NN 40404 3079 24 . . . 40404 3080 1 The the DT 40404 3080 2 column column NN 40404 3080 3 of of IN 40404 3080 4 lava lava NN 40404 3080 5 rises rise VBZ 40404 3080 6 , , , 40404 3080 7 breaks break VBZ 40404 3080 8 through through IN 40404 3080 9 the the DT 40404 3080 10 side side NN 40404 3080 11 of of IN 40404 3080 12 the the DT 40404 3080 13 mountain mountain NN 40404 3080 14 , , , 40404 3080 15 and and CC 40404 3080 16 discharges discharge NNS 40404 3080 17 in in IN 40404 3080 18 lava lava NN 40404 3080 19 streams stream NNS 40404 3080 20 . . . 40404 3081 1 There there EX 40404 3081 2 are be VBP 40404 3081 3 no no DT 40404 3081 4 explosions explosion NNS 40404 3081 5 , , , 40404 3081 6 and and CC 40404 3081 7 usually usually RB 40404 3081 8 no no DT 40404 3081 9 earthquakes earthquake NNS 40404 3081 10 , , , 40404 3081 11 or or CC 40404 3081 12 very very RB 40404 3081 13 slight slight JJ 40404 3081 14 ones one NNS 40404 3081 15 , , , 40404 3081 16 accompany accompany VBP 40404 3081 17 the the DT 40404 3081 18 eruptions eruption NNS 40404 3081 19 . . . 40404 3082 1 The the DT 40404 3082 2 lava lava NN 40404 3082 3 in in IN 40404 3082 4 the the DT 40404 3082 5 calderas caldera NNS 40404 3082 6 boils boil VBZ 40404 3082 7 because because IN 40404 3082 8 of of IN 40404 3082 9 escaping escape VBG 40404 3082 10 steam steam NN 40404 3082 11 , , , 40404 3082 12 but but CC 40404 3082 13 the the DT 40404 3082 14 vapor vapor NN 40404 3082 15 emitted emit VBD 40404 3082 16 is be VBZ 40404 3082 17 comparatively comparatively RB 40404 3082 18 little little JJ 40404 3082 19 , , , 40404 3082 20 and and CC 40404 3082 21 seldom seldom RB 40404 3082 22 hangs hang VBZ 40404 3082 23 above above IN 40404 3082 24 the the DT 40404 3082 25 summits summit NNS 40404 3082 26 in in IN 40404 3082 27 heavy heavy JJ 40404 3082 28 clouds cloud NNS 40404 3082 29 . . . 40404 3083 1 We -PRON- PRP 40404 3083 2 see see VBP 40404 3083 3 here here RB 40404 3083 4 in in IN 40404 3083 5 its -PRON- PRP$ 40404 3083 6 simplest simple JJS 40404 3083 7 form form NN 40404 3083 8 the the DT 40404 3083 9 most most RBS 40404 3083 10 impressive impressive JJ 40404 3083 11 and and CC 40404 3083 12 important important JJ 40404 3083 13 fact fact NN 40404 3083 14 in in IN 40404 3083 15 all all DT 40404 3083 16 volcanic volcanic JJ 40404 3083 17 action action NN 40404 3083 18 , , , 40404 3083 19 molten molten JJ 40404 3083 20 rock rock NN 40404 3083 21 has have VBZ 40404 3083 22 been be VBN 40404 3083 23 driven drive VBN 40404 3083 24 upward upward RB 40404 3083 25 to to IN 40404 3083 26 the the DT 40404 3083 27 surface surface NN 40404 3083 28 from from IN 40404 3083 29 some some DT 40404 3083 30 deep deep RB 40404 3083 31 - - HYPH 40404 3083 32 lying lie VBG 40404 3083 33 source source NN 40404 3083 34 . . . 40404 3084 1 = = NFP 40404 3084 2 Lava Lava NNP 40404 3084 3 flows.= flows.= NNP 40404 3084 4 As as IN 40404 3084 5 lava lava NN 40404 3084 6 issues issue NNS 40404 3084 7 from from IN 40404 3084 8 the the DT 40404 3084 9 side side NN 40404 3084 10 of of IN 40404 3084 11 a a DT 40404 3084 12 volcano volcano NN 40404 3084 13 or or CC 40404 3084 14 overflows overflow NNS 40404 3084 15 from from IN 40404 3084 16 the the DT 40404 3084 17 summit summit NN 40404 3084 18 , , , 40404 3084 19 it -PRON- PRP 40404 3084 20 flows flow VBZ 40404 3084 21 away away RB 40404 3084 22 in in IN 40404 3084 23 a a DT 40404 3084 24 glowing glowing JJ 40404 3084 25 stream stream NN 40404 3084 26 resembling resemble VBG 40404 3084 27 molten molten JJ 40404 3084 28 iron iron NN 40404 3084 29 drawn draw VBN 40404 3084 30 white white JJ 40404 3084 31 - - HYPH 40404 3084 32 hot hot JJ 40404 3084 33 from from IN 40404 3084 34 an an DT 40404 3084 35 iron iron NN 40404 3084 36 furnace furnace NN 40404 3084 37 . . . 40404 3085 1 The the DT 40404 3085 2 surface surface NN 40404 3085 3 of of IN 40404 3085 4 the the DT 40404 3085 5 stream stream NN 40404 3085 6 soon soon RB 40404 3085 7 cools cool VBZ 40404 3085 8 and and CC 40404 3085 9 blackens blacken NNS 40404 3085 10 , , , 40404 3085 11 and and CC 40404 3085 12 the the DT 40404 3085 13 hard hard JJ 40404 3085 14 crust crust NN 40404 3085 15 of of IN 40404 3085 16 nonconducting nonconducte VBG 40404 3085 17 rock rock NN 40404 3085 18 may may MD 40404 3085 19 grow grow VB 40404 3085 20 thick thick JJ 40404 3085 21 and and CC 40404 3085 22 firm firm JJ 40404 3085 23 enough enough RB 40404 3085 24 to to TO 40404 3085 25 form form VB 40404 3085 26 a a DT 40404 3085 27 tunnel tunnel NN 40404 3085 28 , , , 40404 3085 29 within within IN 40404 3085 30 which which WDT 40404 3085 31 the the DT 40404 3085 32 fluid fluid JJ 40404 3085 33 lava lava NN 40404 3085 34 may may MD 40404 3085 35 flow flow VB 40404 3085 36 far far RB 40404 3085 37 before before IN 40404 3085 38 it -PRON- PRP 40404 3085 39 loses lose VBZ 40404 3085 40 its -PRON- PRP$ 40404 3085 41 heat heat NN 40404 3085 42 to to IN 40404 3085 43 any any DT 40404 3085 44 marked marked JJ 40404 3085 45 degree degree NN 40404 3085 46 . . . 40404 3086 1 Such such JJ 40404 3086 2 tunnels tunnel NNS 40404 3086 3 may may MD 40404 3086 4 at at IN 40404 3086 5 last last RB 40404 3086 6 be be VB 40404 3086 7 left leave VBN 40404 3086 8 as as IN 40404 3086 9 caves cave NNS 40404 3086 10 by by IN 40404 3086 11 the the DT 40404 3086 12 draining draining NN 40404 3086 13 away away RB 40404 3086 14 of of IN 40404 3086 15 the the DT 40404 3086 16 lava lava NN 40404 3086 17 , , , 40404 3086 18 and and CC 40404 3086 19 are be VBP 40404 3086 20 sometimes sometimes RB 40404 3086 21 several several JJ 40404 3086 22 miles mile NNS 40404 3086 23 in in IN 40404 3086 24 length length NN 40404 3086 25 . . . 40404 3087 1 [ [ -LRB- 40404 3087 2 Illustration illustration NN 40404 3087 3 : : : 40404 3087 4 Fig Fig NNP 40404 3087 5 . . . 40404 3088 1 214 214 CD 40404 3088 2 . . . 40404 3089 1 Pahoehoe Pahoehoe NNP 40404 3089 2 Lava Lava NNP 40404 3089 3 , , , 40404 3089 4 Hawaii Hawaii NNP 40404 3089 5 ] ] -RRB- 40404 3089 6 = = NFP 40404 3089 7 Pahoehoe Pahoehoe NNP 40404 3089 8 and and CC 40404 3089 9 aa.= aa.= NNP 40404 3089 10 When when WRB 40404 3089 11 the the DT 40404 3089 12 crust crust NN 40404 3089 13 of of IN 40404 3089 14 highly highly RB 40404 3089 15 fluid fluid JJ 40404 3089 16 lava lava NN 40404 3089 17 remains remain VBZ 40404 3089 18 unbroken unbroken JJ 40404 3089 19 after after IN 40404 3089 20 its -PRON- PRP$ 40404 3089 21 first first JJ 40404 3089 22 freezing freezing NN 40404 3089 23 , , , 40404 3089 24 it -PRON- PRP 40404 3089 25 presents present VBZ 40404 3089 26 a a DT 40404 3089 27 smooth smooth JJ 40404 3089 28 , , , 40404 3089 29 hummocky hummocky JJ 40404 3089 30 , , , 40404 3089 31 and and CC 40404 3089 32 ropy ropy NN 40404 3089 33 surface surface NN 40404 3089 34 known know VBN 40404 3089 35 by by IN 40404 3089 36 the the DT 40404 3089 37 Hawaiian hawaiian JJ 40404 3089 38 term term NN 40404 3089 39 _ _ NNP 40404 3089 40 pahoehoe pahoehoe NN 40404 3089 41 _ _ NNP 40404 3089 42 ( ( -LRB- 40404 3089 43 Fig Fig NNP 40404 3089 44 . . . 40404 3090 1 214 214 CD 40404 3090 2 ) ) -RRB- 40404 3090 3 . . . 40404 3091 1 On on IN 40404 3091 2 the the DT 40404 3091 3 other other JJ 40404 3091 4 hand hand NN 40404 3091 5 , , , 40404 3091 6 the the DT 40404 3091 7 crust crust NN 40404 3091 8 of of IN 40404 3091 9 a a DT 40404 3091 10 viscid viscid JJ 40404 3091 11 flow flow NN 40404 3091 12 may may MD 40404 3091 13 be be VB 40404 3091 14 broken break VBN 40404 3091 15 and and CC 40404 3091 16 splintered splinter VBN 40404 3091 17 as as IN 40404 3091 18 it -PRON- PRP 40404 3091 19 is be VBZ 40404 3091 20 dragged drag VBN 40404 3091 21 along along RP 40404 3091 22 by by IN 40404 3091 23 the the DT 40404 3091 24 slowly slowly RB 40404 3091 25 moving move VBG 40404 3091 26 mass mass NN 40404 3091 27 beneath beneath RB 40404 3091 28 . . . 40404 3092 1 The the DT 40404 3092 2 stream stream NN 40404 3092 3 then then RB 40404 3092 4 appears appear VBZ 40404 3092 5 as as IN 40404 3092 6 a a DT 40404 3092 7 field field NN 40404 3092 8 of of IN 40404 3092 9 stones stone NNS 40404 3092 10 clanking clank VBG 40404 3092 11 and and CC 40404 3092 12 grinding grind VBG 40404 3092 13 on on RP 40404 3092 14 , , , 40404 3092 15 with with IN 40404 3092 16 here here RB 40404 3092 17 and and CC 40404 3092 18 there there RB 40404 3092 19 from from IN 40404 3092 20 some some DT 40404 3092 21 chink chink NN 40404 3092 22 a a DT 40404 3092 23 dull dull JJ 40404 3092 24 red red JJ 40404 3092 25 glow glow NN 40404 3092 26 or or CC 40404 3092 27 a a DT 40404 3092 28 wisp wisp NN 40404 3092 29 of of IN 40404 3092 30 steam steam NN 40404 3092 31 . . . 40404 3093 1 It -PRON- PRP 40404 3093 2 sets set VBZ 40404 3093 3 to to IN 40404 3093 4 a a DT 40404 3093 5 surface surface NN 40404 3093 6 called call VBN 40404 3093 7 _ _ NNP 40404 3093 8 aa aa NNP 40404 3093 9 _ _ NNP 40404 3093 10 , , , 40404 3093 11 of of IN 40404 3093 12 broken broken JJ 40404 3093 13 , , , 40404 3093 14 sharp sharp RB 40404 3093 15 - - HYPH 40404 3093 16 edged edge VBN 40404 3093 17 blocks block NNS 40404 3093 18 , , , 40404 3093 19 which which WDT 40404 3093 20 is be VBZ 40404 3093 21 often often RB 40404 3093 22 both both CC 40404 3093 23 difficult difficult JJ 40404 3093 24 and and CC 40404 3093 25 dangerous dangerous JJ 40404 3093 26 to to TO 40404 3093 27 traverse traverse VB 40404 3093 28 ( ( -LRB- 40404 3093 29 Fig fig NN 40404 3093 30 . . . 40404 3094 1 215 215 CD 40404 3094 2 ) ) -RRB- 40404 3094 3 . . . 40404 3095 1 [ [ -LRB- 40404 3095 2 Illustration illustration NN 40404 3095 3 : : : 40404 3095 4 Fig Fig NNP 40404 3095 5 . . . 40404 3096 1 215 215 CD 40404 3096 2 . . . 40404 3097 1 Lava Lava NNP 40404 3097 2 Flow Flow NNP 40404 3097 3 of of IN 40404 3097 4 the the DT 40404 3097 5 _ _ NNP 40404 3097 6 Aa Aa NNP 40404 3097 7 _ _ NNP 40404 3097 8 Type Type NNP 40404 3097 9 , , , 40404 3097 10 Cinder Cinder NNP 40404 3097 11 Cones Cones NNPS 40404 3097 12 in in IN 40404 3097 13 the the DT 40404 3097 14 Distance Distance NNP 40404 3097 15 , , , 40404 3097 16 Arizona Arizona NNP 40404 3097 17 ] ] -RRB- 40404 3097 18 = = SYM 40404 3097 19 Fissure Fissure NNP 40404 3097 20 eruptions.= eruptions.= CD 40404 3097 21 Some some DT 40404 3097 22 of of IN 40404 3097 23 the the DT 40404 3097 24 largest large JJS 40404 3097 25 and and CC 40404 3097 26 most most RBS 40404 3097 27 important important JJ 40404 3097 28 outflows outflow NNS 40404 3097 29 of of IN 40404 3097 30 lava lava NN 40404 3097 31 have have VBP 40404 3097 32 not not RB 40404 3097 33 been be VBN 40404 3097 34 connected connect VBN 40404 3097 35 with with IN 40404 3097 36 volcanic volcanic JJ 40404 3097 37 cones cone NNS 40404 3097 38 , , , 40404 3097 39 but but CC 40404 3097 40 have have VBP 40404 3097 41 been be VBN 40404 3097 42 discharged discharge VBN 40404 3097 43 from from IN 40404 3097 44 fissures fissure NNS 40404 3097 45 , , , 40404 3097 46 flooding flood VBG 40404 3097 47 the the DT 40404 3097 48 country country NN 40404 3097 49 far far RB 40404 3097 50 and and CC 40404 3097 51 wide wide RB 40404 3097 52 with with IN 40404 3097 53 molten molten JJ 40404 3097 54 rock rock NN 40404 3097 55 . . . 40404 3098 1 Sheet sheet NN 40404 3098 2 after after IN 40404 3098 3 sheet sheet NN 40404 3098 4 of of IN 40404 3098 5 molten molten JJ 40404 3098 6 rock rock NN 40404 3098 7 has have VBZ 40404 3098 8 been be VBN 40404 3098 9 successively successively RB 40404 3098 10 outpoured outpoure VBN 40404 3098 11 , , , 40404 3098 12 and and CC 40404 3098 13 there there EX 40404 3098 14 have have VBP 40404 3098 15 been be VBN 40404 3098 16 built build VBN 40404 3098 17 up up RP 40404 3098 18 , , , 40404 3098 19 layer layer NN 40404 3098 20 upon upon IN 40404 3098 21 layer layer NN 40404 3098 22 , , , 40404 3098 23 plateaus plateaus NN 40404 3098 24 of of IN 40404 3098 25 lava lava NN 40404 3098 26 thousands thousand NNS 40404 3098 27 of of IN 40404 3098 28 feet foot NNS 40404 3098 29 in in IN 40404 3098 30 thickness thickness NN 40404 3098 31 and and CC 40404 3098 32 many many JJ 40404 3098 33 thousands thousand NNS 40404 3098 34 of of IN 40404 3098 35 square square JJ 40404 3098 36 miles mile NNS 40404 3098 37 in in IN 40404 3098 38 area area NN 40404 3098 39 . . . 40404 3099 1 = = NFP 40404 3099 2 Iceland.= Iceland.= NNP 40404 3099 3 This this DT 40404 3099 4 island island NN 40404 3099 5 plateau plateau NN 40404 3099 6 has have VBZ 40404 3099 7 been be VBN 40404 3099 8 rent rent NN 40404 3099 9 from from IN 40404 3099 10 time time NN 40404 3099 11 to to IN 40404 3099 12 time time NN 40404 3099 13 by by IN 40404 3099 14 fissures fissure NNS 40404 3099 15 from from IN 40404 3099 16 which which WDT 40404 3099 17 floods flood NNS 40404 3099 18 of of IN 40404 3099 19 lava lava NN 40404 3099 20 have have VBP 40404 3099 21 outpoured outpoure VBN 40404 3099 22 . . . 40404 3100 1 In in IN 40404 3100 2 some some DT 40404 3100 3 instances instance NNS 40404 3100 4 the the DT 40404 3100 5 lava lava NN 40404 3100 6 discharges discharge NNS 40404 3100 7 along along IN 40404 3100 8 the the DT 40404 3100 9 whole whole JJ 40404 3100 10 length length NN 40404 3100 11 of of IN 40404 3100 12 the the DT 40404 3100 13 fissure fissure NN 40404 3100 14 , , , 40404 3100 15 but but CC 40404 3100 16 more more RBR 40404 3100 17 often often RB 40404 3100 18 only only RB 40404 3100 19 at at IN 40404 3100 20 certain certain JJ 40404 3100 21 points point NNS 40404 3100 22 upon upon IN 40404 3100 23 it -PRON- PRP 40404 3100 24 . . . 40404 3101 1 The the DT 40404 3101 2 Laki Laki NNP 40404 3101 3 fissure fissure NN 40404 3101 4 , , , 40404 3101 5 twenty twenty CD 40404 3101 6 miles mile NNS 40404 3101 7 long long JJ 40404 3101 8 , , , 40404 3101 9 was be VBD 40404 3101 10 in in IN 40404 3101 11 eruption eruption NN 40404 3101 12 in in IN 40404 3101 13 1783 1783 CD 40404 3101 14 for for IN 40404 3101 15 seven seven CD 40404 3101 16 months month NNS 40404 3101 17 . . . 40404 3102 1 The the DT 40404 3102 2 inundation inundation NN 40404 3102 3 of of IN 40404 3102 4 fluid fluid JJ 40404 3102 5 rock rock NN 40404 3102 6 which which WDT 40404 3102 7 poured pour VBD 40404 3102 8 from from IN 40404 3102 9 it -PRON- PRP 40404 3102 10 is be VBZ 40404 3102 11 the the DT 40404 3102 12 largest large JJS 40404 3102 13 of of IN 40404 3102 14 historic historic JJ 40404 3102 15 record record NN 40404 3102 16 , , , 40404 3102 17 reaching reach VBG 40404 3102 18 a a DT 40404 3102 19 distance distance NN 40404 3102 20 of of IN 40404 3102 21 forty forty CD 40404 3102 22 - - HYPH 40404 3102 23 seven seven CD 40404 3102 24 miles mile NNS 40404 3102 25 and and CC 40404 3102 26 covering cover VBG 40404 3102 27 two two CD 40404 3102 28 hundred hundred CD 40404 3102 29 and and CC 40404 3102 30 twenty twenty CD 40404 3102 31 square square JJ 40404 3102 32 miles mile NNS 40404 3102 33 to to IN 40404 3102 34 an an DT 40404 3102 35 average average JJ 40404 3102 36 depth depth NN 40404 3102 37 of of IN 40404 3102 38 a a DT 40404 3102 39 hundred hundred CD 40404 3102 40 feet foot NNS 40404 3102 41 . . . 40404 3103 1 At at IN 40404 3103 2 the the DT 40404 3103 3 present present JJ 40404 3103 4 time time NN 40404 3103 5 the the DT 40404 3103 6 fissure fissure NN 40404 3103 7 is be VBZ 40404 3103 8 traced trace VBN 40404 3103 9 by by IN 40404 3103 10 a a DT 40404 3103 11 line line NN 40404 3103 12 of of IN 40404 3103 13 several several JJ 40404 3103 14 hundred hundred CD 40404 3103 15 insignificant insignificant JJ 40404 3103 16 mounds mound NNS 40404 3103 17 of of IN 40404 3103 18 fragmental fragmental JJ 40404 3103 19 materials material NNS 40404 3103 20 which which WDT 40404 3103 21 mark mark VBP 40404 3103 22 where where WRB 40404 3103 23 the the DT 40404 3103 24 lava lava NN 40404 3103 25 issued issue VBN 40404 3103 26 ( ( -LRB- 40404 3103 27 Fig fig NN 40404 3103 28 . . . 40404 3104 1 216 216 CD 40404 3104 2 ) ) -RRB- 40404 3104 3 . . . 40404 3105 1 The the DT 40404 3105 2 distance distance NN 40404 3105 3 to to TO 40404 3105 4 which which WDT 40404 3105 5 the the DT 40404 3105 6 fissure fissure NN 40404 3105 7 eruptions eruption NNS 40404 3105 8 of of IN 40404 3105 9 Iceland Iceland NNP 40404 3105 10 flow flow NN 40404 3105 11 on on IN 40404 3105 12 slopes slope NNS 40404 3105 13 extremely extremely RB 40404 3105 14 gentle gentle JJ 40404 3105 15 is be VBZ 40404 3105 16 noteworthy noteworthy JJ 40404 3105 17 . . . 40404 3106 1 One one CD 40404 3106 2 such such JJ 40404 3106 3 stream stream NN 40404 3106 4 is be VBZ 40404 3106 5 ninety ninety CD 40404 3106 6 miles mile NNS 40404 3106 7 in in IN 40404 3106 8 length length NN 40404 3106 9 , , , 40404 3106 10 and and CC 40404 3106 11 another another DT 40404 3106 12 seventy seventy CD 40404 3106 13 miles mile NNS 40404 3106 14 long long RB 40404 3106 15 has have VBZ 40404 3106 16 a a DT 40404 3106 17 slope slope NN 40404 3106 18 of of IN 40404 3106 19 little little JJ 40404 3106 20 more more JJR 40404 3106 21 than than IN 40404 3106 22 one one CD 40404 3106 23 half half PDT 40404 3106 24 a a DT 40404 3106 25 degree degree NN 40404 3106 26 . . . 40404 3107 1 Where where WRB 40404 3107 2 lava lava NN 40404 3107 3 is be VBZ 40404 3107 4 emitted emit VBN 40404 3107 5 at at IN 40404 3107 6 one one CD 40404 3107 7 point point NN 40404 3107 8 and and CC 40404 3107 9 flows flow VBZ 40404 3107 10 to to IN 40404 3107 11 a a DT 40404 3107 12 less less JJR 40404 3107 13 distance distance NN 40404 3107 14 there there EX 40404 3107 15 is be VBZ 40404 3107 16 gradually gradually RB 40404 3107 17 built build VBN 40404 3107 18 up up RP 40404 3107 19 a a DT 40404 3107 20 dome dome NN 40404 3107 21 of of IN 40404 3107 22 the the DT 40404 3107 23 shape shape NN 40404 3107 24 of of IN 40404 3107 25 an an DT 40404 3107 26 inverted inverted JJ 40404 3107 27 saucer saucer NN 40404 3107 28 with with IN 40404 3107 29 an an DT 40404 3107 30 immense immense JJ 40404 3107 31 base base NN 40404 3107 32 but but CC 40404 3107 33 comparatively comparatively RB 40404 3107 34 low low JJ 40404 3107 35 . . . 40404 3108 1 Many many JJ 40404 3108 2 _ _ NNP 40404 3108 3 lava lava NN 40404 3108 4 domes dome VBZ 40404 3108 5 _ _ NNP 40404 3108 6 have have VBP 40404 3108 7 been be VBN 40404 3108 8 discovered discover VBN 40404 3108 9 in in IN 40404 3108 10 Iceland Iceland NNP 40404 3108 11 , , , 40404 3108 12 although although IN 40404 3108 13 from from IN 40404 3108 14 their -PRON- PRP$ 40404 3108 15 exceedingly exceedingly RB 40404 3108 16 gentle gentle JJ 40404 3108 17 slopes slope NNS 40404 3108 18 , , , 40404 3108 19 often often RB 40404 3108 20 but but CC 40404 3108 21 two two CD 40404 3108 22 or or CC 40404 3108 23 three three CD 40404 3108 24 degrees degree NNS 40404 3108 25 , , , 40404 3108 26 they -PRON- PRP 40404 3108 27 long long RB 40404 3108 28 escaped escape VBD 40404 3108 29 the the DT 40404 3108 30 notice notice NN 40404 3108 31 of of IN 40404 3108 32 explorers explorer NNS 40404 3108 33 . . . 40404 3109 1 The the DT 40404 3109 2 entire entire JJ 40404 3109 3 plateau plateau NN 40404 3109 4 of of IN 40404 3109 5 Iceland Iceland NNP 40404 3109 6 , , , 40404 3109 7 a a DT 40404 3109 8 region region NN 40404 3109 9 as as RB 40404 3109 10 large large JJ 40404 3109 11 as as IN 40404 3109 12 Ohio Ohio NNP 40404 3109 13 , , , 40404 3109 14 is be VBZ 40404 3109 15 composed compose VBN 40404 3109 16 of of IN 40404 3109 17 volcanic volcanic JJ 40404 3109 18 products,--for products,--for NNP 40404 3109 19 the the DT 40404 3109 20 most most JJS 40404 3109 21 part part NN 40404 3109 22 of of IN 40404 3109 23 successive successive JJ 40404 3109 24 sheets sheet NNS 40404 3109 25 of of IN 40404 3109 26 lava lava NN 40404 3109 27 whose whose WP$ 40404 3109 28 total total JJ 40404 3109 29 thickness thickness NN 40404 3109 30 falls fall VBZ 40404 3109 31 little little JJ 40404 3109 32 short short JJ 40404 3109 33 of of IN 40404 3109 34 two two CD 40404 3109 35 miles mile NNS 40404 3109 36 . . . 40404 3110 1 The the DT 40404 3110 2 lava lava NN 40404 3110 3 sheets sheet NNS 40404 3110 4 exposed expose VBN 40404 3110 5 to to IN 40404 3110 6 view view NN 40404 3110 7 were be VBD 40404 3110 8 outpoured outpoure VBN 40404 3110 9 in in IN 40404 3110 10 open open JJ 40404 3110 11 air air NN 40404 3110 12 and and CC 40404 3110 13 not not RB 40404 3110 14 beneath beneath IN 40404 3110 15 the the DT 40404 3110 16 sea sea NN 40404 3110 17 ; ; : 40404 3110 18 for for IN 40404 3110 19 peat peat NNP 40404 3110 20 bogs bogs NNP 40404 3110 21 and and CC 40404 3110 22 old old JJ 40404 3110 23 forest forest NN 40404 3110 24 grounds ground NNS 40404 3110 25 are be VBP 40404 3110 26 interbedded interbedde VBN 40404 3110 27 with with IN 40404 3110 28 them -PRON- PRP 40404 3110 29 , , , 40404 3110 30 and and CC 40404 3110 31 the the DT 40404 3110 32 fossil fossil NN 40404 3110 33 plants plant NNS 40404 3110 34 of of IN 40404 3110 35 these these DT 40404 3110 36 vegetable vegetable NN 40404 3110 37 deposits deposit NNS 40404 3110 38 prove prove VBP 40404 3110 39 that that IN 40404 3110 40 the the DT 40404 3110 41 plateau plateau NN 40404 3110 42 has have VBZ 40404 3110 43 long long RB 40404 3110 44 been be VBN 40404 3110 45 building build VBG 40404 3110 46 and and CC 40404 3110 47 is be VBZ 40404 3110 48 very very RB 40404 3110 49 ancient ancient JJ 40404 3110 50 . . . 40404 3111 1 On on IN 40404 3111 2 the the DT 40404 3111 3 steep steep JJ 40404 3111 4 sea sea NN 40404 3111 5 cliffs cliff NNS 40404 3111 6 of of IN 40404 3111 7 the the DT 40404 3111 8 island island NN 40404 3111 9 , , , 40404 3111 10 where where WRB 40404 3111 11 its -PRON- PRP$ 40404 3111 12 structure structure NN 40404 3111 13 is be VBZ 40404 3111 14 exhibited exhibit VBN 40404 3111 15 , , , 40404 3111 16 the the DT 40404 3111 17 sheets sheet NNS 40404 3111 18 of of IN 40404 3111 19 lava lava NN 40404 3111 20 are be VBP 40404 3111 21 seen see VBN 40404 3111 22 to to TO 40404 3111 23 be be VB 40404 3111 24 cut cut VBN 40404 3111 25 with with IN 40404 3111 26 many many JJ 40404 3111 27 _ _ NNP 40404 3111 28 dikes_,--fissures dikes_,--fissure NNS 40404 3111 29 which which WDT 40404 3111 30 have have VBP 40404 3111 31 been be VBN 40404 3111 32 filled fill VBN 40404 3111 33 by by IN 40404 3111 34 molten molten JJ 40404 3111 35 rock,--and rock,--and CC 40404 3111 36 there there EX 40404 3111 37 is be VBZ 40404 3111 38 little little JJ 40404 3111 39 doubt doubt NN 40404 3111 40 that that IN 40404 3111 41 it -PRON- PRP 40404 3111 42 was be VBD 40404 3111 43 through through IN 40404 3111 44 these these DT 40404 3111 45 fissures fissure NNS 40404 3111 46 that that IN 40404 3111 47 the the DT 40404 3111 48 lava lava NN 40404 3111 49 outwelled outwelle VBN 40404 3111 50 in in IN 40404 3111 51 successive successive JJ 40404 3111 52 flows flow NNS 40404 3111 53 which which WDT 40404 3111 54 spread spread VBD 40404 3111 55 far far RB 40404 3111 56 and and CC 40404 3111 57 wide wide RB 40404 3111 58 over over IN 40404 3111 59 the the DT 40404 3111 60 country country NN 40404 3111 61 and and CC 40404 3111 62 gradually gradually RB 40404 3111 63 reared rear VBD 40404 3111 64 the the DT 40404 3111 65 enormous enormous JJ 40404 3111 66 pile pile NN 40404 3111 67 of of IN 40404 3111 68 the the DT 40404 3111 69 plateau plateau NN 40404 3111 70 . . . 40404 3112 1 Eruptions eruption NNS 40404 3112 2 of of IN 40404 3112 3 the the DT 40404 3112 4 Explosive Explosive NNP 40404 3112 5 Type Type NNP 40404 3112 6 In in IN 40404 3112 7 the the DT 40404 3112 8 majority majority NN 40404 3112 9 of of IN 40404 3112 10 volcanoes volcano NNS 40404 3112 11 the the DT 40404 3112 12 lava lava NN 40404 3112 13 which which WDT 40404 3112 14 rises rise VBZ 40404 3112 15 in in IN 40404 3112 16 the the DT 40404 3112 17 pipe pipe NN 40404 3112 18 is be VBZ 40404 3112 19 at at IN 40404 3112 20 least least JJS 40404 3112 21 in in IN 40404 3112 22 part part NN 40404 3112 23 blown blow VBN 40404 3112 24 into into IN 40404 3112 25 fragments fragment NNS 40404 3112 26 with with IN 40404 3112 27 violent violent JJ 40404 3112 28 explosions explosion NNS 40404 3112 29 and and CC 40404 3112 30 shot shoot VBD 40404 3112 31 into into IN 40404 3112 32 the the DT 40404 3112 33 air air NN 40404 3112 34 together together RB 40404 3112 35 with with IN 40404 3112 36 vast vast JJ 40404 3112 37 quantities quantity NNS 40404 3112 38 of of IN 40404 3112 39 water water NN 40404 3112 40 vapor vapor NN 40404 3112 41 and and CC 40404 3112 42 various various JJ 40404 3112 43 gases gas NNS 40404 3112 44 . . . 40404 3113 1 The the DT 40404 3113 2 finer fine JJR 40404 3113 3 particles particle NNS 40404 3113 4 into into IN 40404 3113 5 -- -- : 40404 3113 6 which which WDT 40404 3113 7 the the DT 40404 3113 8 lava lava NN 40404 3113 9 is be VBZ 40404 3113 10 exploded explode VBN 40404 3113 11 are be VBP 40404 3113 12 called call VBN 40404 3113 13 _ _ NNP 40404 3113 14 volcanic volcanic JJ 40404 3113 15 dust dust NN 40404 3113 16 _ _ NNP 40404 3113 17 or or CC 40404 3113 18 _ _ NNP 40404 3113 19 volcanic volcanic JJ 40404 3113 20 ashes ashe NNS 40404 3113 21 _ _ NNP 40404 3113 22 , , , 40404 3113 23 and and CC 40404 3113 24 are be VBP 40404 3113 25 often often RB 40404 3113 26 carried carry VBN 40404 3113 27 long long JJ 40404 3113 28 distances distance NNS 40404 3113 29 by by IN 40404 3113 30 the the DT 40404 3113 31 wind wind NN 40404 3113 32 before before IN 40404 3113 33 they -PRON- PRP 40404 3113 34 settle settle VBP 40404 3113 35 to to IN 40404 3113 36 the the DT 40404 3113 37 earth earth NN 40404 3113 38 . . . 40404 3114 1 The the DT 40404 3114 2 coarser coarser NN 40404 3114 3 fragments fragment NNS 40404 3114 4 fall fall VBP 40404 3114 5 about about IN 40404 3114 6 the the DT 40404 3114 7 vent vent NN 40404 3114 8 and and CC 40404 3114 9 there there EX 40404 3114 10 accumulate accumulate VBP 40404 3114 11 in in IN 40404 3114 12 a a DT 40404 3114 13 steep steep JJ 40404 3114 14 , , , 40404 3114 15 conical conical JJ 40404 3114 16 , , , 40404 3114 17 volcanic volcanic JJ 40404 3114 18 mountain mountain NN 40404 3114 19 . . . 40404 3115 1 As as IN 40404 3115 2 successive successive JJ 40404 3115 3 explosions explosion NNS 40404 3115 4 keep keep VBP 40404 3115 5 open open JJ 40404 3115 6 the the DT 40404 3115 7 throat throat NN 40404 3115 8 of of IN 40404 3115 9 the the DT 40404 3115 10 pipe pipe NN 40404 3115 11 , , , 40404 3115 12 there there EX 40404 3115 13 remains remain VBZ 40404 3115 14 on on IN 40404 3115 15 the the DT 40404 3115 16 summit summit NN 40404 3115 17 a a DT 40404 3115 18 cup cup NN 40404 3115 19 - - HYPH 40404 3115 20 shaped shape VBN 40404 3115 21 depression depression NN 40404 3115 22 called call VBD 40404 3115 23 the the DT 40404 3115 24 _ _ NNP 40404 3115 25 crater crater NN 40404 3115 26 _ _ NNP 40404 3115 27 . . . 40404 3116 1 = = NFP 40404 3116 2 Stromboli.= Stromboli.= VBZ 40404 3116 3 To to TO 40404 3116 4 study study VB 40404 3116 5 the the DT 40404 3116 6 nature nature NN 40404 3116 7 of of IN 40404 3116 8 these these DT 40404 3116 9 explosions explosion NNS 40404 3116 10 we -PRON- PRP 40404 3116 11 may may MD 40404 3116 12 visit visit VB 40404 3116 13 Stromboli Stromboli NNP 40404 3116 14 , , , 40404 3116 15 a a DT 40404 3116 16 low low JJ 40404 3116 17 volcano volcano NN 40404 3116 18 built build VBN 40404 3116 19 chiefly chiefly RB 40404 3116 20 of of IN 40404 3116 21 fragmental fragmental JJ 40404 3116 22 materials material NNS 40404 3116 23 , , , 40404 3116 24 which which WDT 40404 3116 25 rises rise VBZ 40404 3116 26 from from IN 40404 3116 27 the the DT 40404 3116 28 sea sea NN 40404 3116 29 off off IN 40404 3116 30 the the DT 40404 3116 31 north north JJ 40404 3116 32 coast coast NN 40404 3116 33 of of IN 40404 3116 34 Sicily Sicily NNP 40404 3116 35 and and CC 40404 3116 36 is be VBZ 40404 3116 37 in in IN 40404 3116 38 constant constant JJ 40404 3116 39 though though IN 40404 3116 40 moderate moderate JJ 40404 3116 41 action action NN 40404 3116 42 . . . 40404 3117 1 Over over IN 40404 3117 2 the the DT 40404 3117 3 summit summit NN 40404 3117 4 hangs hang VBZ 40404 3117 5 a a DT 40404 3117 6 cloud cloud NN 40404 3117 7 of of IN 40404 3117 8 vapor vapor NN 40404 3117 9 which which WDT 40404 3117 10 strikingly strikingly RB 40404 3117 11 resembles resemble VBZ 40404 3117 12 the the DT 40404 3117 13 column column NN 40404 3117 14 of of IN 40404 3117 15 smoke smoke NN 40404 3117 16 puffed puff VBN 40404 3117 17 from from IN 40404 3117 18 the the DT 40404 3117 19 smokestack smokestack NN 40404 3117 20 of of IN 40404 3117 21 a a DT 40404 3117 22 locomotive locomotive JJ 40404 3117 23 , , , 40404 3117 24 in in IN 40404 3117 25 that that IN 40404 3117 26 it -PRON- PRP 40404 3117 27 consists consist VBZ 40404 3117 28 of of IN 40404 3117 29 globular globular JJ 40404 3117 30 masses masse NNS 40404 3117 31 , , , 40404 3117 32 each each DT 40404 3117 33 the the DT 40404 3117 34 product product NN 40404 3117 35 of of IN 40404 3117 36 a a DT 40404 3117 37 distinct distinct JJ 40404 3117 38 explosion explosion NN 40404 3117 39 . . . 40404 3118 1 At at IN 40404 3118 2 night night NN 40404 3118 3 the the DT 40404 3118 4 cloud cloud NN 40404 3118 5 of of IN 40404 3118 6 vapor vapor NN 40404 3118 7 is be VBZ 40404 3118 8 lighted light VBN 40404 3118 9 with with IN 40404 3118 10 a a DT 40404 3118 11 red red JJ 40404 3118 12 glow glow NN 40404 3118 13 at at IN 40404 3118 14 intervals interval NNS 40404 3118 15 of of IN 40404 3118 16 a a DT 40404 3118 17 few few JJ 40404 3118 18 minutes minute NNS 40404 3118 19 , , , 40404 3118 20 like like IN 40404 3118 21 the the DT 40404 3118 22 glow glow NN 40404 3118 23 on on IN 40404 3118 24 the the DT 40404 3118 25 trail trail NN 40404 3118 26 of of IN 40404 3118 27 smoke smoke NN 40404 3118 28 behind behind IN 40404 3118 29 the the DT 40404 3118 30 locomotive locomotive JJ 40404 3118 31 when when WRB 40404 3118 32 from from IN 40404 3118 33 time time NN 40404 3118 34 to to IN 40404 3118 35 time time NN 40404 3118 36 the the DT 40404 3118 37 fire fire NN 40404 3118 38 box box NN 40404 3118 39 is be VBZ 40404 3118 40 opened open VBN 40404 3118 41 . . . 40404 3119 1 Because because IN 40404 3119 2 of of IN 40404 3119 3 this this DT 40404 3119 4 intermittent intermittent JJ 40404 3119 5 light light NN 40404 3119 6 flashing flash VBG 40404 3119 7 thousands thousand NNS 40404 3119 8 of of IN 40404 3119 9 feet foot NNS 40404 3119 10 above above IN 40404 3119 11 the the DT 40404 3119 12 sea sea NN 40404 3119 13 , , , 40404 3119 14 Stromboli Stromboli NNP 40404 3119 15 has have VBZ 40404 3119 16 been be VBN 40404 3119 17 given give VBN 40404 3119 18 the the DT 40404 3119 19 name name NN 40404 3119 20 of of IN 40404 3119 21 the the DT 40404 3119 22 Lighthouse Lighthouse NNP 40404 3119 23 of of IN 40404 3119 24 the the DT 40404 3119 25 Mediterranean Mediterranean NNP 40404 3119 26 . . . 40404 3120 1 Looking look VBG 40404 3120 2 down down RP 40404 3120 3 into into IN 40404 3120 4 the the DT 40404 3120 5 crater crater NN 40404 3120 6 of of IN 40404 3120 7 the the DT 40404 3120 8 volcano volcano NN 40404 3120 9 , , , 40404 3120 10 one one PRP 40404 3120 11 sees see VBZ 40404 3120 12 a a DT 40404 3120 13 viscid viscid JJ 40404 3120 14 lava lava NN 40404 3120 15 slowly slowly RB 40404 3120 16 seething seethe VBG 40404 3120 17 . . . 40404 3121 1 The the DT 40404 3121 2 agitation agitation NN 40404 3121 3 gradually gradually RB 40404 3121 4 increases increase VBZ 40404 3121 5 . . . 40404 3122 1 A a DT 40404 3122 2 great great JJ 40404 3122 3 bubble bubble NN 40404 3122 4 forms form NNS 40404 3122 5 . . . 40404 3123 1 It -PRON- PRP 40404 3123 2 bursts burst VBZ 40404 3123 3 with with IN 40404 3123 4 an an DT 40404 3123 5 explosion explosion NN 40404 3123 6 which which WDT 40404 3123 7 causes cause VBZ 40404 3123 8 the the DT 40404 3123 9 walls wall NNS 40404 3123 10 of of IN 40404 3123 11 the the DT 40404 3123 12 crater crater NN 40404 3123 13 to to IN 40404 3123 14 quiver quiver NNP 40404 3123 15 with with IN 40404 3123 16 a a DT 40404 3123 17 miniature miniature JJ 40404 3123 18 earthquake earthquake NN 40404 3123 19 , , , 40404 3123 20 and and CC 40404 3123 21 an an DT 40404 3123 22 outrush outrush NN 40404 3123 23 of of IN 40404 3123 24 steam steam NN 40404 3123 25 carries carry VBZ 40404 3123 26 the the DT 40404 3123 27 fragments fragment NNS 40404 3123 28 of of IN 40404 3123 29 the the DT 40404 3123 30 bubble bubble NN 40404 3123 31 aloft aloft RB 40404 3123 32 for for IN 40404 3123 33 a a DT 40404 3123 34 thousand thousand CD 40404 3123 35 feet foot NNS 40404 3123 36 to to TO 40404 3123 37 fall fall VB 40404 3123 38 into into IN 40404 3123 39 the the DT 40404 3123 40 crater crater NN 40404 3123 41 or or CC 40404 3123 42 on on IN 40404 3123 43 the the DT 40404 3123 44 mountain mountain NN 40404 3123 45 side side NN 40404 3123 46 about about IN 40404 3123 47 it -PRON- PRP 40404 3123 48 . . . 40404 3124 1 With with IN 40404 3124 2 the the DT 40404 3124 3 explosion explosion NN 40404 3124 4 the the DT 40404 3124 5 cooled cool VBN 40404 3124 6 and and CC 40404 3124 7 darkened darken VBN 40404 3124 8 crust crust NN 40404 3124 9 of of IN 40404 3124 10 the the DT 40404 3124 11 lava lava NN 40404 3124 12 is be VBZ 40404 3124 13 removed remove VBN 40404 3124 14 , , , 40404 3124 15 and and CC 40404 3124 16 the the DT 40404 3124 17 light light NN 40404 3124 18 of of IN 40404 3124 19 the the DT 40404 3124 20 incandescent incandescent JJ 40404 3124 21 liquid liquid NN 40404 3124 22 beneath beneath RB 40404 3124 23 is be VBZ 40404 3124 24 reflected reflect VBN 40404 3124 25 from from IN 40404 3124 26 the the DT 40404 3124 27 cloud cloud NN 40404 3124 28 of of IN 40404 3124 29 vapor vapor NN 40404 3124 30 which which WDT 40404 3124 31 overhangs overhang VBZ 40404 3124 32 the the DT 40404 3124 33 cone cone NN 40404 3124 34 . . . 40404 3125 1 At at IN 40404 3125 2 Stromboli Stromboli NNP 40404 3125 3 we -PRON- PRP 40404 3125 4 learn learn VBP 40404 3125 5 the the DT 40404 3125 6 lesson lesson NN 40404 3125 7 that that WDT 40404 3125 8 the the DT 40404 3125 9 explosive explosive JJ 40404 3125 10 force force NN 40404 3125 11 in in IN 40404 3125 12 volcanoes volcano NNS 40404 3125 13 is be VBZ 40404 3125 14 that that DT 40404 3125 15 of of IN 40404 3125 16 steam steam NN 40404 3125 17 . . . 40404 3126 1 The the DT 40404 3126 2 lava lava NN 40404 3126 3 in in IN 40404 3126 4 the the DT 40404 3126 5 pipe pipe NN 40404 3126 6 is be VBZ 40404 3126 7 permeated permeate VBN 40404 3126 8 with with IN 40404 3126 9 it -PRON- PRP 40404 3126 10 much much JJ 40404 3126 11 as as IN 40404 3126 12 is be VBZ 40404 3126 13 a a DT 40404 3126 14 thick thick JJ 40404 3126 15 boiling boiling NN 40404 3126 16 porridge porridge NN 40404 3126 17 . . . 40404 3127 1 The the DT 40404 3127 2 steam steam NN 40404 3127 3 in in IN 40404 3127 4 boiling boil VBG 40404 3127 5 porridge porridge NN 40404 3127 6 is be VBZ 40404 3127 7 unable unable JJ 40404 3127 8 to to TO 40404 3127 9 escape escape VB 40404 3127 10 freely freely RB 40404 3127 11 and and CC 40404 3127 12 gathers gather NNS 40404 3127 13 into into IN 40404 3127 14 bubbles bubble NNS 40404 3127 15 which which WDT 40404 3127 16 in in IN 40404 3127 17 breaking break VBG 40404 3127 18 spurt spurt NN 40404 3127 19 out out RP 40404 3127 20 drops drop NNS 40404 3127 21 of of IN 40404 3127 22 the the DT 40404 3127 23 pasty pasty NN 40404 3127 24 substance substance NN 40404 3127 25 ; ; : 40404 3127 26 in in IN 40404 3127 27 the the DT 40404 3127 28 same same JJ 40404 3127 29 way way NN 40404 3127 30 the the DT 40404 3127 31 explosion explosion NN 40404 3127 32 of of IN 40404 3127 33 great great JJ 40404 3127 34 bubbles bubble NNS 40404 3127 35 of of IN 40404 3127 36 steam steam NN 40404 3127 37 in in IN 40404 3127 38 the the DT 40404 3127 39 viscid viscid NN 40404 3127 40 lava lava NN 40404 3127 41 shoots shoot VBZ 40404 3127 42 clots clot NNS 40404 3127 43 and and CC 40404 3127 44 fragments fragment NNS 40404 3127 45 of of IN 40404 3127 46 it -PRON- PRP 40404 3127 47 into into IN 40404 3127 48 the the DT 40404 3127 49 air air NN 40404 3127 50 . . . 40404 3128 1 = = NFP 40404 3128 2 Krakatoa.= Krakatoa.= NNP 40404 3128 3 The the DT 40404 3128 4 most most RBS 40404 3128 5 violent violent JJ 40404 3128 6 eruption eruption NN 40404 3128 7 of of IN 40404 3128 8 history history NN 40404 3128 9 , , , 40404 3128 10 that that DT 40404 3128 11 of of IN 40404 3128 12 Krakatoa Krakatoa NNP 40404 3128 13 , , , 40404 3128 14 a a DT 40404 3128 15 small small JJ 40404 3128 16 volcanic volcanic JJ 40404 3128 17 island island NN 40404 3128 18 in in IN 40404 3128 19 the the DT 40404 3128 20 strait strait NN 40404 3128 21 between between IN 40404 3128 22 Sumatra Sumatra NNP 40404 3128 23 and and CC 40404 3128 24 Java Java NNP 40404 3128 25 , , , 40404 3128 26 occurred occur VBD 40404 3128 27 in in IN 40404 3128 28 the the DT 40404 3128 29 last last JJ 40404 3128 30 week week NN 40404 3128 31 of of IN 40404 3128 32 August August NNP 40404 3128 33 , , , 40404 3128 34 1883 1883 CD 40404 3128 35 . . . 40404 3129 1 Continuous continuous JJ 40404 3129 2 explosions explosion NNS 40404 3129 3 shot shoot VBD 40404 3129 4 a a DT 40404 3129 5 column column NN 40404 3129 6 of of IN 40404 3129 7 steam steam NN 40404 3129 8 and and CC 40404 3129 9 ashes ashe NNS 40404 3129 10 . . . 40404 3130 1 seventeen seventeen CD 40404 3130 2 miles mile NNS 40404 3130 3 in in IN 40404 3130 4 air air NN 40404 3130 5 . . . 40404 3131 1 A a DT 40404 3131 2 black black JJ 40404 3131 3 cloud cloud NN 40404 3131 4 , , , 40404 3131 5 beneath beneath IN 40404 3131 6 which which WDT 40404 3131 7 was be VBD 40404 3131 8 midnight midnight NN 40404 3131 9 darkness darkness NN 40404 3131 10 and and CC 40404 3131 11 from from IN 40404 3131 12 which which WDT 40404 3131 13 fell fall VBD 40404 3131 14 a a DT 40404 3131 15 rain rain NN 40404 3131 16 of of IN 40404 3131 17 ashes ashe NNS 40404 3131 18 and and CC 40404 3131 19 stones stone NNS 40404 3131 20 , , , 40404 3131 21 overspread overspread RB 40404 3131 22 the the DT 40404 3131 23 surrounding surround VBG 40404 3131 24 region region NN 40404 3131 25 to to IN 40404 3131 26 a a DT 40404 3131 27 distance distance NN 40404 3131 28 of of IN 40404 3131 29 one one CD 40404 3131 30 hundred hundred CD 40404 3131 31 and and CC 40404 3131 32 fifty fifty CD 40404 3131 33 miles mile NNS 40404 3131 34 . . . 40404 3132 1 Launched launch VBN 40404 3132 2 on on IN 40404 3132 3 the the DT 40404 3132 4 currents current NNS 40404 3132 5 of of IN 40404 3132 6 the the DT 40404 3132 7 upper upper JJ 40404 3132 8 air air NN 40404 3132 9 , , , 40404 3132 10 the the DT 40404 3132 11 dust dust NN 40404 3132 12 was be VBD 40404 3132 13 swiftly swiftly RB 40404 3132 14 carried carry VBN 40404 3132 15 westward westward RB 40404 3132 16 to to IN 40404 3132 17 long long JJ 40404 3132 18 distances distance NNS 40404 3132 19 . . . 40404 3133 1 Three three CD 40404 3133 2 days day NNS 40404 3133 3 after after IN 40404 3133 4 the the DT 40404 3133 5 eruption eruption NN 40404 3133 6 it -PRON- PRP 40404 3133 7 fell fall VBD 40404 3133 8 on on IN 40404 3133 9 the the DT 40404 3133 10 deck deck NN 40404 3133 11 of of IN 40404 3133 12 a a DT 40404 3133 13 ship ship NN 40404 3133 14 sixteen sixteen CD 40404 3133 15 hundred hundred CD 40404 3133 16 miles mile NNS 40404 3133 17 away away RB 40404 3133 18 , , , 40404 3133 19 and and CC 40404 3133 20 in in IN 40404 3133 21 thirteen thirteen CD 40404 3133 22 days day NNS 40404 3133 23 the the DT 40404 3133 24 finest fine JJS 40404 3133 25 impalpable impalpable JJ 40404 3133 26 powder powder NN 40404 3133 27 from from IN 40404 3133 28 the the DT 40404 3133 29 volcano volcano NN 40404 3133 30 had have VBD 40404 3133 31 floated float VBN 40404 3133 32 round round IN 40404 3133 33 the the DT 40404 3133 34 globe globe NN 40404 3133 35 . . . 40404 3134 1 For for IN 40404 3134 2 many many JJ 40404 3134 3 months month NNS 40404 3134 4 the the DT 40404 3134 5 dust dust NN 40404 3134 6 hung hang VBD 40404 3134 7 over over IN 40404 3134 8 Europe Europe NNP 40404 3134 9 and and CC 40404 3134 10 America America NNP 40404 3134 11 as as IN 40404 3134 12 a a DT 40404 3134 13 faint faint JJ 40404 3134 14 lofty lofty JJ 40404 3134 15 haze haze NN 40404 3134 16 illuminated illuminate VBN 40404 3134 17 at at IN 40404 3134 18 sunrise sunrise NN 40404 3134 19 and and CC 40404 3134 20 sunset sunset NN 40404 3134 21 with with IN 40404 3134 22 brilliant brilliant JJ 40404 3134 23 crimson crimson NN 40404 3134 24 . . . 40404 3135 1 In in IN 40404 3135 2 countries country NNS 40404 3135 3 nearer nearer IN 40404 3135 4 the the DT 40404 3135 5 eruption eruption NN 40404 3135 6 , , , 40404 3135 7 as as IN 40404 3135 8 in in IN 40404 3135 9 India India NNP 40404 3135 10 and and CC 40404 3135 11 Africa Africa NNP 40404 3135 12 , , , 40404 3135 13 the the DT 40404 3135 14 haze haze NN 40404 3135 15 for for IN 40404 3135 16 some some DT 40404 3135 17 time time NN 40404 3135 18 was be VBD 40404 3135 19 so so RB 40404 3135 20 thick thick JJ 40404 3135 21 that that IN 40404 3135 22 it -PRON- PRP 40404 3135 23 colored color VBD 40404 3135 24 sun sun NN 40404 3135 25 and and CC 40404 3135 26 moon moon NN 40404 3135 27 with with IN 40404 3135 28 blue blue JJ 40404 3135 29 , , , 40404 3135 30 green green JJ 40404 3135 31 , , , 40404 3135 32 and and CC 40404 3135 33 copper copper NN 40404 3135 34 - - HYPH 40404 3135 35 red red JJ 40404 3135 36 tints tint NNS 40404 3135 37 and and CC 40404 3135 38 encircled encircle VBD 40404 3135 39 them -PRON- PRP 40404 3135 40 with with IN 40404 3135 41 coronas corona NNS 40404 3135 42 . . . 40404 3136 1 At at IN 40404 3136 2 a a DT 40404 3136 3 distance distance NN 40404 3136 4 of of IN 40404 3136 5 even even RB 40404 3136 6 a a DT 40404 3136 7 thousand thousand CD 40404 3136 8 miles mile NNS 40404 3136 9 the the DT 40404 3136 10 detonations detonation NNS 40404 3136 11 of of IN 40404 3136 12 the the DT 40404 3136 13 eruption eruption NN 40404 3136 14 sounded sound VBD 40404 3136 15 like like IN 40404 3136 16 the the DT 40404 3136 17 booming booming NN 40404 3136 18 of of IN 40404 3136 19 heavy heavy JJ 40404 3136 20 guns gun NNS 40404 3136 21 a a DT 40404 3136 22 few few JJ 40404 3136 23 miles mile NNS 40404 3136 24 away away RB 40404 3136 25 . . . 40404 3137 1 In in IN 40404 3137 2 one one CD 40404 3137 3 direction direction NN 40404 3137 4 they -PRON- PRP 40404 3137 5 were be VBD 40404 3137 6 audible audible JJ 40404 3137 7 for for IN 40404 3137 8 a a DT 40404 3137 9 distance distance NN 40404 3137 10 as as RB 40404 3137 11 great great JJ 40404 3137 12 as as IN 40404 3137 13 that that DT 40404 3137 14 from from IN 40404 3137 15 San San NNP 40404 3137 16 Francisco Francisco NNP 40404 3137 17 to to IN 40404 3137 18 Cleveland Cleveland NNP 40404 3137 19 . . . 40404 3138 1 The the DT 40404 3138 2 entire entire JJ 40404 3138 3 atmosphere atmosphere NN 40404 3138 4 was be VBD 40404 3138 5 thrown throw VBN 40404 3138 6 into into IN 40404 3138 7 undulations undulation NNS 40404 3138 8 under under IN 40404 3138 9 which which WDT 40404 3138 10 all all DT 40404 3138 11 barometers barometer NNS 40404 3138 12 rose rise VBD 40404 3138 13 and and CC 40404 3138 14 fell fall VBD 40404 3138 15 as as IN 40404 3138 16 the the DT 40404 3138 17 air air NN 40404 3138 18 waves wave NNS 40404 3138 19 thrice thrice NNP 40404 3138 20 encircled encircle VBD 40404 3138 21 the the DT 40404 3138 22 earth earth NN 40404 3138 23 . . . 40404 3139 1 The the DT 40404 3139 2 shock shock NN 40404 3139 3 of of IN 40404 3139 4 the the DT 40404 3139 5 explosions explosion NNS 40404 3139 6 raised raise VBD 40404 3139 7 sea sea NN 40404 3139 8 waves wave NNS 40404 3139 9 which which WDT 40404 3139 10 swept sweep VBD 40404 3139 11 round round IN 40404 3139 12 the the DT 40404 3139 13 adjacent adjacent JJ 40404 3139 14 shores shore NNS 40404 3139 15 at at IN 40404 3139 16 a a DT 40404 3139 17 height height NN 40404 3139 18 of of IN 40404 3139 19 more more JJR 40404 3139 20 than than IN 40404 3139 21 fifty fifty CD 40404 3139 22 feet foot NNS 40404 3139 23 , , , 40404 3139 24 and and CC 40404 3139 25 which which WDT 40404 3139 26 were be VBD 40404 3139 27 perceptible perceptible JJ 40404 3139 28 halfway halfway RB 40404 3139 29 around around IN 40404 3139 30 the the DT 40404 3139 31 globe globe NN 40404 3139 32 . . . 40404 3140 1 At at IN 40404 3140 2 the the DT 40404 3140 3 close close NN 40404 3140 4 of of IN 40404 3140 5 the the DT 40404 3140 6 eruption eruption NN 40404 3140 7 it -PRON- PRP 40404 3140 8 was be VBD 40404 3140 9 found find VBN 40404 3140 10 that that IN 40404 3140 11 half half PDT 40404 3140 12 the the DT 40404 3140 13 mountain mountain NN 40404 3140 14 had have VBD 40404 3140 15 been be VBN 40404 3140 16 blown blow VBN 40404 3140 17 away away RB 40404 3140 18 , , , 40404 3140 19 and and CC 40404 3140 20 that that IN 40404 3140 21 where where WRB 40404 3140 22 the the DT 40404 3140 23 central central JJ 40404 3140 24 part part NN 40404 3140 25 of of IN 40404 3140 26 the the DT 40404 3140 27 island island NN 40404 3140 28 had have VBD 40404 3140 29 been be VBN 40404 3140 30 the the DT 40404 3140 31 sea sea NN 40404 3140 32 was be VBD 40404 3140 33 a a DT 40404 3140 34 thousand thousand CD 40404 3140 35 feet foot NNS 40404 3140 36 deep deep JJ 40404 3140 37 . . . 40404 3141 1 = = NFP 40404 3141 2 Martinique Martinique NNP 40404 3141 3 and and CC 40404 3141 4 St. St. NNP 40404 3141 5 Vincent.= Vincent.= NNP 40404 3141 6 In in IN 40404 3141 7 1902 1902 CD 40404 3141 8 two two CD 40404 3141 9 dormant dormant JJ 40404 3141 10 volcanoes volcano NNS 40404 3141 11 of of IN 40404 3141 12 the the DT 40404 3141 13 West West NNP 40404 3141 14 Indies Indies NNPS 40404 3141 15 , , , 40404 3141 16 Mt. Mount NNP 40404 3142 1 Pelee Pelee NNP 40404 3142 2 in in IN 40404 3142 3 Martinique Martinique NNP 40404 3142 4 and and CC 40404 3142 5 Soufrière Soufrière NNP 40404 3142 6 in in IN 40404 3142 7 St. St. NNP 40404 3142 8 Vincent Vincent NNP 40404 3142 9 , , , 40404 3142 10 broke break VBD 40404 3142 11 into into IN 40404 3142 12 eruption eruption NN 40404 3142 13 simultaneously simultaneously RB 40404 3142 14 . . . 40404 3143 1 No no DT 40404 3143 2 lava lava NN 40404 3143 3 was be VBD 40404 3143 4 emitted emit VBN 40404 3143 5 , , , 40404 3143 6 but but CC 40404 3143 7 there there EX 40404 3143 8 were be VBD 40404 3143 9 blown blow VBN 40404 3143 10 into into IN 40404 3143 11 the the DT 40404 3143 12 air air NN 40404 3143 13 great great JJ 40404 3143 14 quantities quantity NNS 40404 3143 15 of of IN 40404 3143 16 ashes ashe NNS 40404 3143 17 , , , 40404 3143 18 which which WDT 40404 3143 19 mantled mantle VBD 40404 3143 20 the the DT 40404 3143 21 adjacent adjacent JJ 40404 3143 22 parts part NNS 40404 3143 23 of of IN 40404 3143 24 the the DT 40404 3143 25 islands island NNS 40404 3143 26 with with IN 40404 3143 27 a a DT 40404 3143 28 pall pall NN 40404 3143 29 as as IN 40404 3143 30 of of IN 40404 3143 31 gray gray JJ 40404 3143 32 snow snow NN 40404 3143 33 . . . 40404 3144 1 In in IN 40404 3144 2 early early JJ 40404 3144 3 stages stage NNS 40404 3144 4 of of IN 40404 3144 5 the the DT 40404 3144 6 eruption eruption NN 40404 3144 7 lakes lake NNS 40404 3144 8 which which WDT 40404 3144 9 occupied occupy VBD 40404 3144 10 old old JJ 40404 3144 11 craters crater NNS 40404 3144 12 were be VBD 40404 3144 13 discharged discharge VBN 40404 3144 14 and and CC 40404 3144 15 swept sweep VBD 40404 3144 16 down down RP 40404 3144 17 the the DT 40404 3144 18 ash ash NN 40404 3144 19 - - HYPH 40404 3144 20 covered cover VBN 40404 3144 21 mountain mountain NN 40404 3144 22 valleys valley NNS 40404 3144 23 in in IN 40404 3144 24 torrents torrent NNS 40404 3144 25 of of IN 40404 3144 26 boiling boil VBG 40404 3144 27 mud mud NN 40404 3144 28 . . . 40404 3145 1 On on IN 40404 3145 2 several several JJ 40404 3145 3 occasions occasion NNS 40404 3145 4 there there EX 40404 3145 5 was be VBD 40404 3145 6 shot shoot VBN 40404 3145 7 from from IN 40404 3145 8 the the DT 40404 3145 9 crater crater NN 40404 3145 10 of of IN 40404 3145 11 each each DT 40404 3145 12 volcano volcano NN 40404 3145 13 a a DT 40404 3145 14 thick thick JJ 40404 3145 15 and and CC 40404 3145 16 heavy heavy JJ 40404 3145 17 cloud cloud NN 40404 3145 18 of of IN 40404 3145 19 incandescent incandescent NN 40404 3145 20 ashes ashe NNS 40404 3145 21 and and CC 40404 3145 22 steam steam NN 40404 3145 23 , , , 40404 3145 24 which which WDT 40404 3145 25 rushed rush VBD 40404 3145 26 down down IN 40404 3145 27 the the DT 40404 3145 28 mountain mountain NN 40404 3145 29 side side NN 40404 3145 30 like like IN 40404 3145 31 an an DT 40404 3145 32 avalanche avalanche NN 40404 3145 33 , , , 40404 3145 34 red red JJ 40404 3145 35 with with IN 40404 3145 36 glowing glowing JJ 40404 3145 37 stones stone NNS 40404 3145 38 and and CC 40404 3145 39 scintillating scintillate VBG 40404 3145 40 with with IN 40404 3145 41 lightning lightning NN 40404 3145 42 flashes flash NNS 40404 3145 43 . . . 40404 3146 1 Forests forest NNS 40404 3146 2 and and CC 40404 3146 3 buildings building NNS 40404 3146 4 in in IN 40404 3146 5 its -PRON- PRP$ 40404 3146 6 path path NN 40404 3146 7 were be VBD 40404 3146 8 leveled level VBN 40404 3146 9 as as IN 40404 3146 10 by by IN 40404 3146 11 a a DT 40404 3146 12 tornado tornado NN 40404 3146 13 , , , 40404 3146 14 wood wood NN 40404 3146 15 was be VBD 40404 3146 16 charred char VBN 40404 3146 17 and and CC 40404 3146 18 set set VBN 40404 3146 19 on on IN 40404 3146 20 fire fire NN 40404 3146 21 by by IN 40404 3146 22 the the DT 40404 3146 23 incandescent incandescent NN 40404 3146 24 fragments fragment NNS 40404 3146 25 , , , 40404 3146 26 all all DT 40404 3146 27 vegetation vegetation NN 40404 3146 28 was be VBD 40404 3146 29 destroyed destroy VBN 40404 3146 30 , , , 40404 3146 31 and and CC 40404 3146 32 to to TO 40404 3146 33 breathe breathe VB 40404 3146 34 the the DT 40404 3146 35 steam steam NN 40404 3146 36 and and CC 40404 3146 37 hot hot JJ 40404 3146 38 , , , 40404 3146 39 suffocating suffocate VBG 40404 3146 40 dust dust NN 40404 3146 41 of of IN 40404 3146 42 the the DT 40404 3146 43 cloud cloud NN 40404 3146 44 was be VBD 40404 3146 45 death death NN 40404 3146 46 to to IN 40404 3146 47 every every DT 40404 3146 48 living living NN 40404 3146 49 creature creature NN 40404 3146 50 . . . 40404 3147 1 On on IN 40404 3147 2 the the DT 40404 3147 3 morning morning NN 40404 3147 4 of of IN 40404 3147 5 the the DT 40404 3147 6 8th 8th NN 40404 3147 7 of of IN 40404 3147 8 May May NNP 40404 3147 9 , , , 40404 3147 10 1902 1902 CD 40404 3147 11 , , , 40404 3147 12 the the DT 40404 3147 13 first first JJ 40404 3147 14 of of IN 40404 3147 15 these these DT 40404 3147 16 peculiar peculiar JJ 40404 3147 17 avalanches avalanche NNS 40404 3147 18 from from IN 40404 3147 19 Mt. Mount NNP 40404 3148 1 Pelee Pelee NNP 40404 3148 2 fell fall VBD 40404 3148 3 on on IN 40404 3148 4 the the DT 40404 3148 5 city city NN 40404 3148 6 of of IN 40404 3148 7 St. St. NNP 40404 3148 8 Pierre Pierre NNP 40404 3148 9 and and CC 40404 3148 10 instantly instantly RB 40404 3148 11 destroyed destroy VBD 40404 3148 12 the the DT 40404 3148 13 lives life NNS 40404 3148 14 of of IN 40404 3148 15 its -PRON- PRP$ 40404 3148 16 thirty thirty CD 40404 3148 17 thousand thousand CD 40404 3148 18 inhabitants inhabitant NNS 40404 3148 19 . . . 40404 3149 1 [ [ -LRB- 40404 3149 2 Illustration illustration NN 40404 3149 3 : : : 40404 3149 4 Fig Fig NNP 40404 3149 5 . . . 40404 3150 1 219 219 CD 40404 3150 2 . . . 40404 3151 1 An an DT 40404 3151 2 Eruption eruption NN 40404 3151 3 of of IN 40404 3151 4 Vesuvius Vesuvius NNP 40404 3151 5 , , , 40404 3151 6 1872 1872 CD 40404 3151 7 ] ] -RRB- 40404 3151 8 The the DT 40404 3151 9 eruptions eruption NNS 40404 3151 10 of of IN 40404 3151 11 many many JJ 40404 3151 12 volcanoes volcano NNS 40404 3151 13 partake partake NN 40404 3151 14 of of IN 40404 3151 15 both both CC 40404 3151 16 the the DT 40404 3151 17 effusive effusive JJ 40404 3151 18 and and CC 40404 3151 19 the the DT 40404 3151 20 explosive explosive JJ 40404 3151 21 types type NNS 40404 3151 22 : : : 40404 3151 23 the the DT 40404 3151 24 molten molten JJ 40404 3151 25 rock rock NN 40404 3151 26 in in IN 40404 3151 27 the the DT 40404 3151 28 pipe pipe NN 40404 3151 29 is be VBZ 40404 3151 30 in in IN 40404 3151 31 part part NN 40404 3151 32 blown blow VBN 40404 3151 33 into into IN 40404 3151 34 the the DT 40404 3151 35 air air NN 40404 3151 36 with with IN 40404 3151 37 explosions explosion NNS 40404 3151 38 of of IN 40404 3151 39 steam steam NN 40404 3151 40 , , , 40404 3151 41 and and CC 40404 3151 42 in in IN 40404 3151 43 part part NN 40404 3151 44 is be VBZ 40404 3151 45 discharged discharge VBN 40404 3151 46 in in IN 40404 3151 47 streams stream NNS 40404 3151 48 of of IN 40404 3151 49 lava lava NN 40404 3151 50 over over IN 40404 3151 51 the the DT 40404 3151 52 lip lip NN 40404 3151 53 of of IN 40404 3151 54 the the DT 40404 3151 55 crater crater NN 40404 3151 56 and and CC 40404 3151 57 from from IN 40404 3151 58 fissures fissure NNS 40404 3151 59 in in IN 40404 3151 60 the the DT 40404 3151 61 sides side NNS 40404 3151 62 of of IN 40404 3151 63 the the DT 40404 3151 64 cone cone NN 40404 3151 65 . . . 40404 3152 1 Such such JJ 40404 3152 2 are be VBP 40404 3152 3 the the DT 40404 3152 4 eruptions eruption NNS 40404 3152 5 of of IN 40404 3152 6 Vesuvius Vesuvius NNP 40404 3152 7 , , , 40404 3152 8 one one CD 40404 3152 9 of of IN 40404 3152 10 which which WDT 40404 3152 11 is be VBZ 40404 3152 12 illustrated illustrate VBN 40404 3152 13 in in IN 40404 3152 14 Figure Figure NNP 40404 3152 15 219 219 CD 40404 3152 16 . . . 40404 3153 1 = = NFP 40404 3153 2 Submarine submarine NN 40404 3153 3 eruptions.= eruptions.= CD 40404 3153 4 The the DT 40404 3153 5 many many JJ 40404 3153 6 volcanic volcanic JJ 40404 3153 7 islands island NNS 40404 3153 8 of of IN 40404 3153 9 the the DT 40404 3153 10 ocean ocean NN 40404 3153 11 and and CC 40404 3153 12 the the DT 40404 3153 13 coral coral JJ 40404 3153 14 islands island NNS 40404 3153 15 resting rest VBG 40404 3153 16 on on IN 40404 3153 17 submerged submerged JJ 40404 3153 18 volcanic volcanic JJ 40404 3153 19 peaks peak NNS 40404 3153 20 prove prove VBP 40404 3153 21 that that IN 40404 3153 22 eruptions eruption NNS 40404 3153 23 have have VBP 40404 3153 24 often often RB 40404 3153 25 taken take VBN 40404 3153 26 place place NN 40404 3153 27 upon upon IN 40404 3153 28 the the DT 40404 3153 29 ocean ocean NN 40404 3153 30 floor floor NN 40404 3153 31 and and CC 40404 3153 32 have have VBP 40404 3153 33 there there RB 40404 3153 34 built build VBN 40404 3153 35 up up RP 40404 3153 36 enormous enormous JJ 40404 3153 37 piles pile NNS 40404 3153 38 of of IN 40404 3153 39 volcanic volcanic JJ 40404 3153 40 fragments fragment NNS 40404 3153 41 and and CC 40404 3153 42 lava lava NNP 40404 3153 43 . . . 40404 3154 1 The the DT 40404 3154 2 Hawaiian hawaiian JJ 40404 3154 3 volcanoes volcano NNS 40404 3154 4 rise rise VBP 40404 3154 5 from from IN 40404 3154 6 a a DT 40404 3154 7 depth depth NN 40404 3154 8 of of IN 40404 3154 9 eighteen eighteen CD 40404 3154 10 thousand thousand CD 40404 3154 11 feet foot NNS 40404 3154 12 of of IN 40404 3154 13 water water NN 40404 3154 14 and and CC 40404 3154 15 lift lift VB 40404 3154 16 their -PRON- PRP$ 40404 3154 17 heads head NNS 40404 3154 18 to to IN 40404 3154 19 about about RB 40404 3154 20 thirty thirty CD 40404 3154 21 thousand thousand CD 40404 3154 22 feet foot NNS 40404 3154 23 above above IN 40404 3154 24 the the DT 40404 3154 25 ocean ocean NN 40404 3154 26 bed bed NN 40404 3154 27 . . . 40404 3155 1 Christmas Christmas NNP 40404 3155 2 Island Island NNP 40404 3155 3 ( ( -LRB- 40404 3155 4 see see VB 40404 3155 5 p. p. NN 40404 3155 6 194 194 CD 40404 3155 7 ) ) -RRB- 40404 3155 8 , , , 40404 3155 9 built build VBD 40404 3155 10 wholly wholly RB 40404 3155 11 beneath beneath IN 40404 3155 12 the the DT 40404 3155 13 ocean ocean NN 40404 3155 14 , , , 40404 3155 15 is be VBZ 40404 3155 16 a a DT 40404 3155 17 coral coral JJ 40404 3155 18 - - HYPH 40404 3155 19 capped cap VBN 40404 3155 20 volcanic volcanic JJ 40404 3155 21 peak peak NN 40404 3155 22 , , , 40404 3155 23 whose whose WP$ 40404 3155 24 total total JJ 40404 3155 25 height height NN 40404 3155 26 , , , 40404 3155 27 as as IN 40404 3155 28 measured measure VBN 40404 3155 29 from from IN 40404 3155 30 the the DT 40404 3155 31 bottom bottom NN 40404 3155 32 of of IN 40404 3155 33 the the DT 40404 3155 34 sea sea NN 40404 3155 35 , , , 40404 3155 36 is be VBZ 40404 3155 37 more more JJR 40404 3155 38 than than IN 40404 3155 39 fifteen fifteen CD 40404 3155 40 thousand thousand CD 40404 3155 41 feet foot NNS 40404 3155 42 . . . 40404 3156 1 Deep deep JJ 40404 3156 2 - - HYPH 40404 3156 3 sea sea NN 40404 3156 4 soundings sounding NNS 40404 3156 5 have have VBP 40404 3156 6 revealed reveal VBN 40404 3156 7 the the DT 40404 3156 8 presence presence NN 40404 3156 9 of of IN 40404 3156 10 numerous numerous JJ 40404 3156 11 peaks peak NNS 40404 3156 12 which which WDT 40404 3156 13 fail fail VBP 40404 3156 14 to to TO 40404 3156 15 reach reach VB 40404 3156 16 sea sea NN 40404 3156 17 level level NN 40404 3156 18 and and CC 40404 3156 19 which which WDT 40404 3156 20 no no RB 40404 3156 21 doubt doubt RB 40404 3156 22 are be VBP 40404 3156 23 submarine submarine NN 40404 3156 24 volcanoes volcano NNS 40404 3156 25 . . . 40404 3157 1 A a DT 40404 3157 2 number number NN 40404 3157 3 of of IN 40404 3157 4 volcanoes volcano NNS 40404 3157 5 on on IN 40404 3157 6 the the DT 40404 3157 7 land land NN 40404 3157 8 were be VBD 40404 3157 9 submarine submarine NN 40404 3157 10 in in IN 40404 3157 11 their -PRON- PRP$ 40404 3157 12 early early JJ 40404 3157 13 stages stage NNS 40404 3157 14 , , , 40404 3157 15 as as IN 40404 3157 16 , , , 40404 3157 17 for for IN 40404 3157 18 example example NN 40404 3157 19 , , , 40404 3157 20 the the DT 40404 3157 21 vast vast JJ 40404 3157 22 pile pile NN 40404 3157 23 of of IN 40404 3157 24 Etna Etna NNP 40404 3157 25 , , , 40404 3157 26 the the DT 40404 3157 27 celebrated celebrated JJ 40404 3157 28 Sicilian sicilian JJ 40404 3157 29 volcano volcano NN 40404 3157 30 , , , 40404 3157 31 which which WDT 40404 3157 32 rests rest VBZ 40404 3157 33 on on IN 40404 3157 34 stratified stratified JJ 40404 3157 35 volcanic volcanic JJ 40404 3157 36 fragments fragment NNS 40404 3157 37 containing contain VBG 40404 3157 38 marine marine JJ 40404 3157 39 shells shell NNS 40404 3157 40 now now RB 40404 3157 41 uplifted uplifted JJ 40404 3157 42 from from IN 40404 3157 43 the the DT 40404 3157 44 sea sea NN 40404 3157 45 . . . 40404 3158 1 Submarine submarine NN 40404 3158 2 outflows outflow NNS 40404 3158 3 of of IN 40404 3158 4 lava lava NN 40404 3158 5 and and CC 40404 3158 6 deposits deposit NNS 40404 3158 7 of of IN 40404 3158 8 volcanic volcanic JJ 40404 3158 9 fragments fragment NNS 40404 3158 10 become become VBP 40404 3158 11 covered covered JJ 40404 3158 12 with with IN 40404 3158 13 sediments sediment NNS 40404 3158 14 during during IN 40404 3158 15 the the DT 40404 3158 16 long long JJ 40404 3158 17 intervals interval NNS 40404 3158 18 between between IN 40404 3158 19 eruptions eruption NNS 40404 3158 20 . . . 40404 3159 1 Such such JJ 40404 3159 2 volcanic volcanic JJ 40404 3159 3 deposits deposit NNS 40404 3159 4 are be VBP 40404 3159 5 said say VBN 40404 3159 6 to to TO 40404 3159 7 be be VB 40404 3159 8 _ _ NNP 40404 3159 9 contemporaneous contemporaneous JJ 40404 3159 10 _ _ NNP 40404 3159 11 , , , 40404 3159 12 because because IN 40404 3159 13 they -PRON- PRP 40404 3159 14 are be VBP 40404 3159 15 formed form VBN 40404 3159 16 during during IN 40404 3159 17 the the DT 40404 3159 18 same same JJ 40404 3159 19 period period NN 40404 3159 20 as as IN 40404 3159 21 the the DT 40404 3159 22 strata strata NN 40404 3159 23 among among IN 40404 3159 24 which which WDT 40404 3159 25 they -PRON- PRP 40404 3159 26 are be VBP 40404 3159 27 imbedded imbed VBN 40404 3159 28 . . . 40404 3160 1 Contemporaneous contemporaneous JJ 40404 3160 2 lava lava NN 40404 3160 3 sheets sheet NNS 40404 3160 4 may may MD 40404 3160 5 be be VB 40404 3160 6 expected expect VBN 40404 3160 7 to to TO 40404 3160 8 bake bake VB 40404 3160 9 the the DT 40404 3160 10 surface surface NN 40404 3160 11 of of IN 40404 3160 12 the the DT 40404 3160 13 stratum stratum NN 40404 3160 14 on on IN 40404 3160 15 which which WDT 40404 3160 16 they -PRON- PRP 40404 3160 17 rest rest VBP 40404 3160 18 , , , 40404 3160 19 while while IN 40404 3160 20 the the DT 40404 3160 21 sediments sediment NNS 40404 3160 22 deposited deposit VBN 40404 3160 23 upon upon IN 40404 3160 24 them -PRON- PRP 40404 3160 25 are be VBP 40404 3160 26 unaltered unaltered JJ 40404 3160 27 by by IN 40404 3160 28 their -PRON- PRP$ 40404 3160 29 heat heat NN 40404 3160 30 . . . 40404 3161 1 They -PRON- PRP 40404 3161 2 are be VBP 40404 3161 3 among among IN 40404 3161 4 the the DT 40404 3161 5 most most RBS 40404 3161 6 permanent permanent JJ 40404 3161 7 records record NNS 40404 3161 8 of of IN 40404 3161 9 volcanic volcanic JJ 40404 3161 10 action action NN 40404 3161 11 , , , 40404 3161 12 far far RB 40404 3161 13 outlasting outlast VBG 40404 3161 14 the the DT 40404 3161 15 greatest great JJS 40404 3161 16 volcanic volcanic JJ 40404 3161 17 mountains mountain NNS 40404 3161 18 built build VBN 40404 3161 19 in in IN 40404 3161 20 open open JJ 40404 3161 21 air air NN 40404 3161 22 . . . 40404 3162 1 From from IN 40404 3162 2 upraised upraised JJ 40404 3162 3 submarine submarine NN 40404 3162 4 volcanoes volcano NNS 40404 3162 5 , , , 40404 3162 6 such such JJ 40404 3162 7 as as IN 40404 3162 8 Christmas Christmas NNP 40404 3162 9 Island Island NNP 40404 3162 10 , , , 40404 3162 11 it -PRON- PRP 40404 3162 12 is be VBZ 40404 3162 13 learned learn VBN 40404 3162 14 that that IN 40404 3162 15 lava lava NN 40404 3162 16 flows flow NNS 40404 3162 17 which which WDT 40404 3162 18 are be VBP 40404 3162 19 poured pour VBN 40404 3162 20 out out RP 40404 3162 21 upon upon IN 40404 3162 22 the the DT 40404 3162 23 bottom bottom NN 40404 3162 24 of of IN 40404 3162 25 the the DT 40404 3162 26 sea sea NN 40404 3162 27 do do VBP 40404 3162 28 not not RB 40404 3162 29 differ differ VB 40404 3162 30 materially materially RB 40404 3162 31 either either CC 40404 3162 32 in in IN 40404 3162 33 composition composition NN 40404 3162 34 or or CC 40404 3162 35 texture texture NN 40404 3162 36 from from IN 40404 3162 37 those those DT 40404 3162 38 of of IN 40404 3162 39 the the DT 40404 3162 40 land land NN 40404 3162 41 . . . 40404 3163 1 Volcanic Volcanic NNP 40404 3163 2 Products product NNS 40404 3163 3 Vast vast JJ 40404 3163 4 amounts amount NNS 40404 3163 5 of of IN 40404 3163 6 steam steam NN 40404 3163 7 are be VBP 40404 3163 8 , , , 40404 3163 9 as as IN 40404 3163 10 we -PRON- PRP 40404 3163 11 have have VBP 40404 3163 12 seen see VBN 40404 3163 13 , , , 40404 3163 14 emitted emit VBN 40404 3163 15 from from IN 40404 3163 16 volcanoes volcano NNS 40404 3163 17 , , , 40404 3163 18 and and CC 40404 3163 19 comparatively comparatively RB 40404 3163 20 small small JJ 40404 3163 21 quantities quantity NNS 40404 3163 22 of of IN 40404 3163 23 other other JJ 40404 3163 24 vapors vapor NNS 40404 3163 25 , , , 40404 3163 26 such such JJ 40404 3163 27 as as IN 40404 3163 28 various various JJ 40404 3163 29 acid acid NN 40404 3163 30 and and CC 40404 3163 31 sulphurous sulphurous JJ 40404 3163 32 gases gas NNS 40404 3163 33 . . . 40404 3164 1 The the DT 40404 3164 2 rocks rock NNS 40404 3164 3 erupted erupt VBD 40404 3164 4 from from IN 40404 3164 5 volcanoes volcano NNS 40404 3164 6 differ differ VBP 40404 3164 7 widely widely RB 40404 3164 8 in in IN 40404 3164 9 chemical chemical JJ 40404 3164 10 composition composition NN 40404 3164 11 and and CC 40404 3164 12 in in IN 40404 3164 13 texture texture NN 40404 3164 14 . . . 40404 3165 1 [ [ -LRB- 40404 3165 2 Illustration illustration NN 40404 3165 3 : : : 40404 3165 4 Fig Fig NNP 40404 3165 5 . . . 40404 3166 1 220 220 CD 40404 3166 2 . . . 40404 3167 1 Cellular Cellular NNP 40404 3167 2 Lava Lava NNP 40404 3167 3 ] ] -RRB- 40404 3167 4 = = , 40404 3167 5 Acidic acidic JJ 40404 3167 6 and and CC 40404 3167 7 basic basic JJ 40404 3167 8 lavas.= lavas.= CD 40404 3167 9 Two two CD 40404 3167 10 classes class NNS 40404 3167 11 of of IN 40404 3167 12 volcanic volcanic JJ 40404 3167 13 rocks rock NNS 40404 3167 14 may may MD 40404 3167 15 be be VB 40404 3167 16 distinguished,--those distinguished,--those , 40404 3167 17 containing contain VBG 40404 3167 18 a a DT 40404 3167 19 large large JJ 40404 3167 20 proportion proportion NN 40404 3167 21 of of IN 40404 3167 22 silica silica NNP 40404 3167 23 ( ( -LRB- 40404 3167 24 silicic silicic NN 40404 3167 25 acid acid NNP 40404 3167 26 , , , 40404 3167 27 SiO_{2 SiO_{2 NNP 40404 3167 28 } } -RRB- 40404 3167 29 ) ) -RRB- 40404 3167 30 and and CC 40404 3167 31 therefore therefore RB 40404 3167 32 called call VBD 40404 3167 33 _ _ NNP 40404 3167 34 acidic acidic JJ 40404 3167 35 _ _ NNP 40404 3167 36 , , , 40404 3167 37 and and CC 40404 3167 38 those those DT 40404 3167 39 containing contain VBG 40404 3167 40 less less JJR 40404 3167 41 silica silica NN 40404 3167 42 and and CC 40404 3167 43 a a DT 40404 3167 44 larger large JJR 40404 3167 45 proportion proportion NN 40404 3167 46 of of IN 40404 3167 47 the the DT 40404 3167 48 bases basis NNS 40404 3167 49 ( ( -LRB- 40404 3167 50 lime lime NNP 40404 3167 51 , , , 40404 3167 52 magnesia magnesia NNP 40404 3167 53 , , , 40404 3167 54 soda soda NN 40404 3167 55 , , , 40404 3167 56 etc etc FW 40404 3167 57 . . . 40404 3167 58 ) ) -RRB- 40404 3168 1 and and CC 40404 3168 2 therefore therefore RB 40404 3168 3 called call VBD 40404 3168 4 _ _ NNP 40404 3168 5 basic basic JJ 40404 3168 6 _ _ NNP 40404 3168 7 . . . 40404 3169 1 The the DT 40404 3169 2 acidic acidic JJ 40404 3169 3 lavas lavas NN 40404 3169 4 , , , 40404 3169 5 of of IN 40404 3169 6 which which WDT 40404 3169 7 _ _ NNP 40404 3169 8 rhyolite rhyolite NN 40404 3169 9 _ _ NNP 40404 3169 10 and and CC 40404 3169 11 _ _ NNP 40404 3169 12 thrachyte thrachyte NNP 40404 3169 13 _ _ NNP 40404 3169 14 are be VBP 40404 3169 15 examples example NNS 40404 3169 16 , , , 40404 3169 17 are be VBP 40404 3169 18 comparatively comparatively RB 40404 3169 19 light light JJ 40404 3169 20 in in IN 40404 3169 21 color color NN 40404 3169 22 and and CC 40404 3169 23 weight weight NN 40404 3169 24 , , , 40404 3169 25 and and CC 40404 3169 26 are be VBP 40404 3169 27 difficult difficult JJ 40404 3169 28 to to TO 40404 3169 29 melt melt VB 40404 3169 30 . . . 40404 3170 1 The the DT 40404 3170 2 basic basic JJ 40404 3170 3 lavas lavas NN 40404 3170 4 , , , 40404 3170 5 of of IN 40404 3170 6 which which WDT 40404 3170 7 _ _ NNP 40404 3170 8 basalt basalt NN 40404 3170 9 _ _ NNP 40404 3170 10 is be VBZ 40404 3170 11 a a DT 40404 3170 12 type type NN 40404 3170 13 , , , 40404 3170 14 are be VBP 40404 3170 15 dark dark JJ 40404 3170 16 and and CC 40404 3170 17 heavy heavy JJ 40404 3170 18 and and CC 40404 3170 19 melt melt JJ 40404 3170 20 at at IN 40404 3170 21 a a DT 40404 3170 22 lower low JJR 40404 3170 23 temperature temperature NN 40404 3170 24 . . . 40404 3171 1 = = NFP 40404 3171 2 Scoria Scoria NNP 40404 3171 3 and and CC 40404 3171 4 pumice.= pumice.= VBD 40404 3171 5 The the DT 40404 3171 6 texture texture NN 40404 3171 7 of of IN 40404 3171 8 volcanic volcanic JJ 40404 3171 9 rocks rock NNS 40404 3171 10 depends depend VBZ 40404 3171 11 in in IN 40404 3171 12 part part NN 40404 3171 13 on on IN 40404 3171 14 the the DT 40404 3171 15 degree degree NN 40404 3171 16 to to TO 40404 3171 17 which which WDT 40404 3171 18 they -PRON- PRP 40404 3171 19 were be VBD 40404 3171 20 distended distend VBN 40404 3171 21 by by IN 40404 3171 22 the the DT 40404 3171 23 steam steam NN 40404 3171 24 which which WDT 40404 3171 25 permeated permeate VBD 40404 3171 26 them -PRON- PRP 40404 3171 27 when when WRB 40404 3171 28 in in IN 40404 3171 29 a a DT 40404 3171 30 molten molten JJ 40404 3171 31 state state NN 40404 3171 32 . . . 40404 3172 1 They -PRON- PRP 40404 3172 2 harden harden VBP 40404 3172 3 into into IN 40404 3172 4 compact compact JJ 40404 3172 5 rock rock NN 40404 3172 6 where where WRB 40404 3172 7 the the DT 40404 3172 8 steam steam NN 40404 3172 9 can can MD 40404 3172 10 not not RB 40404 3172 11 expand expand VB 40404 3172 12 . . . 40404 3173 1 Where where WRB 40404 3173 2 the the DT 40404 3173 3 steam steam NN 40404 3173 4 is be VBZ 40404 3173 5 released release VBN 40404 3173 6 from from IN 40404 3173 7 pressure pressure NN 40404 3173 8 , , , 40404 3173 9 as as IN 40404 3173 10 on on IN 40404 3173 11 the the DT 40404 3173 12 surface surface NN 40404 3173 13 of of IN 40404 3173 14 a a DT 40404 3173 15 lava lava NN 40404 3173 16 stream stream NN 40404 3173 17 , , , 40404 3173 18 it -PRON- PRP 40404 3173 19 forms form VBZ 40404 3173 20 bubbles bubble NNS 40404 3173 21 ( ( -LRB- 40404 3173 22 steam steam NN 40404 3173 23 blebs blebs NN 40404 3173 24 ) ) -RRB- 40404 3173 25 of of IN 40404 3173 26 various various JJ 40404 3173 27 sizes size NNS 40404 3173 28 , , , 40404 3173 29 which which WDT 40404 3173 30 give give VBP 40404 3173 31 the the DT 40404 3173 32 hardened hardened JJ 40404 3173 33 rock rock NN 40404 3173 34 a a DT 40404 3173 35 cellular cellular JJ 40404 3173 36 structure structure NN 40404 3173 37 ( ( -LRB- 40404 3173 38 Fig fig NN 40404 3173 39 . . . 40404 3174 1 220 220 CD 40404 3174 2 ) ) -RRB- 40404 3174 3 , , , 40404 3174 4 In in IN 40404 3174 5 this this DT 40404 3174 6 way way NN 40404 3174 7 are be VBP 40404 3174 8 formed form VBN 40404 3174 9 the the DT 40404 3174 10 rough rough JJ 40404 3174 11 slags slag NNS 40404 3174 12 and and CC 40404 3174 13 clinkers clinker NNS 40404 3174 14 called call VBD 40404 3174 15 _ _ NNP 40404 3174 16 scoria scoria NNP 40404 3174 17 _ _ NNP 40404 3174 18 , , , 40404 3174 19 which which WDT 40404 3174 20 are be VBP 40404 3174 21 found find VBN 40404 3174 22 on on IN 40404 3174 23 the the DT 40404 3174 24 surface surface NN 40404 3174 25 of of IN 40404 3174 26 flows flow NNS 40404 3174 27 and and CC 40404 3174 28 which which WDT 40404 3174 29 are be VBP 40404 3174 30 also also RB 40404 3174 31 thrown throw VBN 40404 3174 32 out out RP 40404 3174 33 as as IN 40404 3174 34 clots clot NNS 40404 3174 35 of of IN 40404 3174 36 lava lava NN 40404 3174 37 in in IN 40404 3174 38 explosive explosive JJ 40404 3174 39 eruptions eruption NNS 40404 3174 40 . . . 40404 3175 1 On on IN 40404 3175 2 the the DT 40404 3175 3 surface surface NN 40404 3175 4 of of IN 40404 3175 5 the the DT 40404 3175 6 seething seething JJ 40404 3175 7 lava lava NN 40404 3175 8 in in IN 40404 3175 9 the the DT 40404 3175 10 throat throat NN 40404 3175 11 of of IN 40404 3175 12 the the DT 40404 3175 13 volcano volcano NN 40404 3175 14 there there RB 40404 3175 15 gathers gather VBZ 40404 3175 16 a a DT 40404 3175 17 rock rock NN 40404 3175 18 foam foam NN 40404 3175 19 , , , 40404 3175 20 which which WDT 40404 3175 21 , , , 40404 3175 22 when when WRB 40404 3175 23 hurled hurl VBN 40404 3175 24 into into IN 40404 3175 25 the the DT 40404 3175 26 air air NN 40404 3175 27 , , , 40404 3175 28 is be VBZ 40404 3175 29 cooled cool VBN 40404 3175 30 and and CC 40404 3175 31 falls fall VBZ 40404 3175 32 as as IN 40404 3175 33 _ _ NNP 40404 3175 34 pumice_,--a pumice_,--a NNP 40404 3175 35 spongy spongy NNP 40404 3175 36 gray gray NNP 40404 3175 37 rock rock NNP 40404 3175 38 so so RB 40404 3175 39 light light JJ 40404 3175 40 that that IN 40404 3175 41 it -PRON- PRP 40404 3175 42 floats float VBZ 40404 3175 43 on on IN 40404 3175 44 water water NN 40404 3175 45 . . . 40404 3176 1 [ [ -LRB- 40404 3176 2 Illustration illustration NN 40404 3176 3 : : : 40404 3176 4 Fig Fig NNP 40404 3176 5 . . . 40404 3177 1 221 221 CD 40404 3177 2 . . . 40404 3178 1 Amygdules amygdule NNS 40404 3178 2 in in IN 40404 3178 3 Lava Lava NNP 40404 3178 4 ] ] -RRB- 40404 3178 5 = = VBZ 40404 3178 6 Amygdules.= amygdules.= VB 40404 3178 7 The the DT 40404 3178 8 steam steam NN 40404 3178 9 blebs blebs NN 40404 3178 10 of of IN 40404 3178 11 lava lava NN 40404 3178 12 flows flow NNS 40404 3178 13 are be VBP 40404 3178 14 often often RB 40404 3178 15 drawn draw VBN 40404 3178 16 out out RP 40404 3178 17 from from IN 40404 3178 18 a a DT 40404 3178 19 spherical spherical JJ 40404 3178 20 to to IN 40404 3178 21 an an DT 40404 3178 22 elliptical elliptical JJ 40404 3178 23 form form NN 40404 3178 24 resembling resembling NN 40404 3178 25 that that DT 40404 3178 26 of of IN 40404 3178 27 an an DT 40404 3178 28 almond almond NN 40404 3178 29 , , , 40404 3178 30 and and CC 40404 3178 31 after after IN 40404 3178 32 the the DT 40404 3178 33 rock rock NN 40404 3178 34 has have VBZ 40404 3178 35 cooled cool VBN 40404 3178 36 these these DT 40404 3178 37 cavities cavity NNS 40404 3178 38 are be VBP 40404 3178 39 gradually gradually RB 40404 3178 40 filled fill VBN 40404 3178 41 with with IN 40404 3178 42 minerals mineral NNS 40404 3178 43 deposited deposit VBN 40404 3178 44 from from IN 40404 3178 45 solution solution NN 40404 3178 46 by by IN 40404 3178 47 underground underground JJ 40404 3178 48 water water NN 40404 3178 49 . . . 40404 3179 1 From from IN 40404 3179 2 their -PRON- PRP$ 40404 3179 3 shape shape NN 40404 3179 4 such such JJ 40404 3179 5 casts cast NNS 40404 3179 6 are be VBP 40404 3179 7 called call VBN 40404 3179 8 amygdules amygdule NNS 40404 3179 9 ( ( -LRB- 40404 3179 10 Greek Greek NNP 40404 3179 11 , , , 40404 3179 12 _ _ NNP 40404 3179 13 amygdalon amygdalon NNP 40404 3179 14 _ _ NNP 40404 3179 15 , , , 40404 3179 16 an an DT 40404 3179 17 almond almond NN 40404 3179 18 ) ) -RRB- 40404 3179 19 . . . 40404 3180 1 Amygdules amygdule NNS 40404 3180 2 are be VBP 40404 3180 3 commonly commonly RB 40404 3180 4 composed compose VBN 40404 3180 5 of of IN 40404 3180 6 silica silica NN 40404 3180 7 . . . 40404 3181 1 Lavas Lavas NNP 40404 3181 2 contain contain VBP 40404 3181 3 both both DT 40404 3181 4 silica silica NN 40404 3181 5 and and CC 40404 3181 6 the the DT 40404 3181 7 alkalies alkali NNS 40404 3181 8 , , , 40404 3181 9 potash potash NN 40404 3181 10 and and CC 40404 3181 11 soda soda NN 40404 3181 12 , , , 40404 3181 13 and and CC 40404 3181 14 after after IN 40404 3181 15 dissolving dissolve VBG 40404 3181 16 the the DT 40404 3181 17 alkalies alkali NNS 40404 3181 18 , , , 40404 3181 19 percolating percolate VBG 40404 3181 20 water water NN 40404 3181 21 is be VBZ 40404 3181 22 able able JJ 40404 3181 23 to to TO 40404 3181 24 take take VB 40404 3181 25 silica silica NN 40404 3181 26 also also RB 40404 3181 27 into into IN 40404 3181 28 solution solution NN 40404 3181 29 . . . 40404 3182 1 Most Most JJS 40404 3182 2 _ _ NNP 40404 3182 3 agates agates NNPS 40404 3182 4 _ _ NNP 40404 3182 5 are be VBP 40404 3182 6 banded band VBN 40404 3182 7 amygdules amygdule NNS 40404 3182 8 in in IN 40404 3182 9 which which WDT 40404 3182 10 the the DT 40404 3182 11 silica silica NN 40404 3182 12 has have VBZ 40404 3182 13 been be VBN 40404 3182 14 laid lay VBN 40404 3182 15 in in IN 40404 3182 16 varicolored varicolore VBN 40404 3182 17 , , , 40404 3182 18 concentric concentric JJ 40404 3182 19 layers layer NNS 40404 3182 20 ( ( -LRB- 40404 3182 21 Fig fig NN 40404 3182 22 . . . 40404 3183 1 222 222 CD 40404 3183 2 ) ) -RRB- 40404 3183 3 . . . 40404 3184 1 [ [ -LRB- 40404 3184 2 Illustration illustration NN 40404 3184 3 : : : 40404 3184 4 Fig Fig NNP 40404 3184 5 . . . 40404 3185 1 222 222 CD 40404 3185 2 . . . 40404 3186 1 Polished Polished NNP 40404 3186 2 Section Section NNP 40404 3186 3 of of IN 40404 3186 4 an an DT 40404 3186 5 Agate agate NN 40404 3186 6 ] ] -RRB- 40404 3186 7 [ [ -LRB- 40404 3186 8 Illustration illustration NN 40404 3186 9 : : : 40404 3186 10 Fig Fig NNP 40404 3186 11 . . . 40404 3187 1 223 223 CD 40404 3187 2 . . . 40404 3188 1 Microsection microsection NN 40404 3188 2 showing show VBG 40404 3188 3 the the DT 40404 3188 4 Beginnings Beginnings NNPS 40404 3188 5 of of IN 40404 3188 6 Crystal Crystal NNP 40404 3188 7 Growth Growth NNP 40404 3188 8 in in IN 40404 3188 9 Glassy Glassy NNP 40404 3188 10 Lava Lava NNP 40404 3188 11 ] ] -RRB- 40404 3188 12 = = VBZ 40404 3188 13 Glassy Glassy NNP 40404 3188 14 and and CC 40404 3188 15 stony stony JJ 40404 3188 16 lavas.= lavas.= CD 40404 3188 17 Volcanic volcanic JJ 40404 3188 18 rocks rock NNS 40404 3188 19 differ differ VBP 40404 3188 20 in in IN 40404 3188 21 texture texture NN 40404 3188 22 according accord VBG 40404 3188 23 also also RB 40404 3188 24 to to IN 40404 3188 25 the the DT 40404 3188 26 rate rate NN 40404 3188 27 at at IN 40404 3188 28 which which WDT 40404 3188 29 they -PRON- PRP 40404 3188 30 have have VBP 40404 3188 31 solidified solidify VBN 40404 3188 32 . . . 40404 3189 1 When when WRB 40404 3189 2 rapidly rapidly RB 40404 3189 3 cooled cool VBD 40404 3189 4 , , , 40404 3189 5 as as IN 40404 3189 6 on on IN 40404 3189 7 the the DT 40404 3189 8 surface surface NN 40404 3189 9 of of IN 40404 3189 10 a a DT 40404 3189 11 lava lava NN 40404 3189 12 flow flow NN 40404 3189 13 , , , 40404 3189 14 molten molten JJ 40404 3189 15 rock rock NN 40404 3189 16 chills chill VBZ 40404 3189 17 to to IN 40404 3189 18 a a DT 40404 3189 19 glass glass NN 40404 3189 20 , , , 40404 3189 21 because because IN 40404 3189 22 the the DT 40404 3189 23 minerals mineral NNS 40404 3189 24 of of IN 40404 3189 25 which which WDT 40404 3189 26 it -PRON- PRP 40404 3189 27 is be VBZ 40404 3189 28 composed compose VBN 40404 3189 29 have have VBP 40404 3189 30 not not RB 40404 3189 31 had have VBN 40404 3189 32 time time NN 40404 3189 33 to to TO 40404 3189 34 separate separate VB 40404 3189 35 themselves -PRON- PRP 40404 3189 36 from from IN 40404 3189 37 the the DT 40404 3189 38 fused fuse VBN 40404 3189 39 mixture mixture NN 40404 3189 40 and and CC 40404 3189 41 form form NN 40404 3189 42 crystals crystal NNS 40404 3189 43 . . . 40404 3190 1 Under under IN 40404 3190 2 slow slow JJ 40404 3190 3 cooling cooling NN 40404 3190 4 , , , 40404 3190 5 as as IN 40404 3190 6 in in IN 40404 3190 7 the the DT 40404 3190 8 interior interior NN 40404 3190 9 of of IN 40404 3190 10 the the DT 40404 3190 11 flow flow NN 40404 3190 12 , , , 40404 3190 13 it -PRON- PRP 40404 3190 14 becomes become VBZ 40404 3190 15 a a DT 40404 3190 16 stony stony JJ 40404 3190 17 mass mass NN 40404 3190 18 composed compose VBN 40404 3190 19 of of IN 40404 3190 20 crystals crystal NNS 40404 3190 21 set set VBN 40404 3190 22 in in IN 40404 3190 23 a a DT 40404 3190 24 glassy glassy JJ 40404 3190 25 paste paste NN 40404 3190 26 . . . 40404 3191 1 In in IN 40404 3191 2 thin thin JJ 40404 3191 3 slices slice NNS 40404 3191 4 of of IN 40404 3191 5 volcanic volcanic JJ 40404 3191 6 glass glass NN 40404 3191 7 one one PRP 40404 3191 8 may may MD 40404 3191 9 see see VB 40404 3191 10 under under IN 40404 3191 11 the the DT 40404 3191 12 microscope microscope NN 40404 3191 13 the the DT 40404 3191 14 beginnings beginning NNS 40404 3191 15 of of IN 40404 3191 16 crystal crystal NN 40404 3191 17 growth growth NN 40404 3191 18 in in IN 40404 3191 19 filaments filament NNS 40404 3191 20 and and CC 40404 3191 21 needles needle NNS 40404 3191 22 and and CC 40404 3191 23 feathery feathery JJ 40404 3191 24 forms form NNS 40404 3191 25 , , , 40404 3191 26 which which WDT 40404 3191 27 are be VBP 40404 3191 28 the the DT 40404 3191 29 rudiments rudiment NNS 40404 3191 30 of of IN 40404 3191 31 the the DT 40404 3191 32 crystals crystal NNS 40404 3191 33 of of IN 40404 3191 34 various various JJ 40404 3191 35 minerals mineral NNS 40404 3191 36 . . . 40404 3192 1 Spherulites spherulite NNS 40404 3192 2 , , , 40404 3192 3 which which WDT 40404 3192 4 also also RB 40404 3192 5 mark mark VBP 40404 3192 6 the the DT 40404 3192 7 first first JJ 40404 3192 8 changes change NNS 40404 3192 9 of of IN 40404 3192 10 glassy glassy JJ 40404 3192 11 lavas lavas NNP 40404 3192 12 toward toward IN 40404 3192 13 a a DT 40404 3192 14 stony stony JJ 40404 3192 15 condition condition NN 40404 3192 16 , , , 40404 3192 17 are be VBP 40404 3192 18 little little JJ 40404 3192 19 balls ball NNS 40404 3192 20 within within IN 40404 3192 21 the the DT 40404 3192 22 rock rock NN 40404 3192 23 , , , 40404 3192 24 varying vary VBG 40404 3192 25 from from IN 40404 3192 26 microscopic microscopic JJ 40404 3192 27 size size NN 40404 3192 28 to to IN 40404 3192 29 several several JJ 40404 3192 30 inches inch NNS 40404 3192 31 in in IN 40404 3192 32 diameter diameter NN 40404 3192 33 , , , 40404 3192 34 and and CC 40404 3192 35 made make VBD 40404 3192 36 up up RP 40404 3192 37 of of IN 40404 3192 38 radiating radiate VBG 40404 3192 39 fibers fiber NNS 40404 3192 40 . . . 40404 3193 1 Perlitic perlitic JJ 40404 3193 2 structure structure NN 40404 3193 3 , , , 40404 3193 4 common common JJ 40404 3193 5 among among IN 40404 3193 6 glassy glassy NNP 40404 3193 7 lavas lavas NNP 40404 3193 8 , , , 40404 3193 9 consists consist VBZ 40404 3193 10 of of IN 40404 3193 11 microscopic microscopic JJ 40404 3193 12 curving curving NN 40404 3193 13 and and CC 40404 3193 14 interlacing interlace VBG 40404 3193 15 cracks crack NNS 40404 3193 16 , , , 40404 3193 17 due due IN 40404 3193 18 to to IN 40404 3193 19 contraction contraction NN 40404 3193 20 . . . 40404 3194 1 [ [ -LRB- 40404 3194 2 Illustration illustration NN 40404 3194 3 : : : 40404 3194 4 Fig Fig NNP 40404 3194 5 . . . 40404 3195 1 224 224 CD 40404 3195 2 . . . 40404 3196 1 Perlitic Perlitic NNP 40404 3196 2 Structure Structure NNP 40404 3196 3 and and CC 40404 3196 4 Spherulites Spherulites NNPS 40404 3196 5 , , , 40404 3196 6 _ _ NNP 40404 3196 7 a a DT 40404 3196 8 _ _ NNP 40404 3196 9 , , , 40404 3196 10 _ _ NNP 40404 3196 11 a a DT 40404 3196 12 _ _ NN 40404 3196 13 ] ] -RRB- 40404 3196 14 [ [ -LRB- 40404 3196 15 Illustration illustration NN 40404 3196 16 : : : 40404 3196 17 Fig Fig NNP 40404 3196 18 . . . 40404 3197 1 225 225 CD 40404 3197 2 . . . 40404 3198 1 Flow Flow NNP 40404 3198 2 Lines line NNS 40404 3198 3 in in IN 40404 3198 4 Lava Lava NNP 40404 3198 5 ] ] -RRB- 40404 3198 6 = = NFP 40404 3198 7 Flow Flow NNP 40404 3198 8 lines= lines= NN 40404 3198 9 are be VBP 40404 3198 10 exhibited exhibit VBN 40404 3198 11 by by IN 40404 3198 12 volcanic volcanic JJ 40404 3198 13 rocks rock NNS 40404 3198 14 both both DT 40404 3198 15 to to IN 40404 3198 16 the the DT 40404 3198 17 naked naked JJ 40404 3198 18 eye eye NN 40404 3198 19 and and CC 40404 3198 20 under under IN 40404 3198 21 the the DT 40404 3198 22 microscope microscope NN 40404 3198 23 . . . 40404 3199 1 Steam steam NN 40404 3199 2 blebs blebs NN 40404 3199 3 , , , 40404 3199 4 together together RB 40404 3199 5 with with IN 40404 3199 6 crystals crystal NNS 40404 3199 7 and and CC 40404 3199 8 their -PRON- PRP$ 40404 3199 9 embryonic embryonic JJ 40404 3199 10 forms form NNS 40404 3199 11 , , , 40404 3199 12 are be VBP 40404 3199 13 left leave VBN 40404 3199 14 arranged arrange VBN 40404 3199 15 in in IN 40404 3199 16 lines line NNS 40404 3199 17 and and CC 40404 3199 18 streaks streak NNS 40404 3199 19 by by IN 40404 3199 20 the the DT 40404 3199 21 currents current NNS 40404 3199 22 of of IN 40404 3199 23 the the DT 40404 3199 24 flowing flow VBG 40404 3199 25 lava lava NN 40404 3199 26 as as IN 40404 3199 27 it -PRON- PRP 40404 3199 28 stiffened stiffen VBD 40404 3199 29 into into IN 40404 3199 30 rock rock NN 40404 3199 31 . . . 40404 3200 1 [ [ -LRB- 40404 3200 2 Illustration illustration NN 40404 3200 3 : : : 40404 3200 4 Fig Fig NNP 40404 3200 5 . . . 40404 3201 1 226 226 CD 40404 3201 2 . . . 40404 3202 1 Porphyritic porphyritic JJ 40404 3202 2 Structure structure NN 40404 3202 3 ] ] -RRB- 40404 3202 4 = = NFP 40404 3202 5 Porphyritic porphyritic JJ 40404 3202 6 structure.= structure.= NN 40404 3202 7 Rocks Rocks NNP 40404 3202 8 whose whose WP$ 40404 3202 9 ground ground NN 40404 3202 10 mass mass NN 40404 3202 11 has have VBZ 40404 3202 12 scattered scatter VBN 40404 3202 13 through through IN 40404 3202 14 it -PRON- PRP 40404 3202 15 large large JJ 40404 3202 16 conspicuous conspicuous JJ 40404 3202 17 crystals crystal NNS 40404 3202 18 ( ( -LRB- 40404 3202 19 Fig fig NN 40404 3202 20 . . . 40404 3203 1 226 226 CD 40404 3203 2 ) ) -RRB- 40404 3203 3 are be VBP 40404 3203 4 said say VBN 40404 3203 5 to to TO 40404 3203 6 be be VB 40404 3203 7 _ _ NNP 40404 3203 8 porphyritic porphyritic JJ 40404 3203 9 _ _ NNP 40404 3203 10 , , , 40404 3203 11 and and CC 40404 3203 12 it -PRON- PRP 40404 3203 13 is be VBZ 40404 3203 14 especially especially RB 40404 3203 15 among among IN 40404 3203 16 volcanic volcanic JJ 40404 3203 17 rocks rock NNS 40404 3203 18 that that IN 40404 3203 19 this this DT 40404 3203 20 structure structure NN 40404 3203 21 occurs occur VBZ 40404 3203 22 . . . 40404 3204 1 The the DT 40404 3204 2 ground ground NN 40404 3204 3 mass mass NN 40404 3204 4 of of IN 40404 3204 5 porphyries porphyry NNS 40404 3204 6 either either CC 40404 3204 7 may may MD 40404 3204 8 be be VB 40404 3204 9 glassy glassy JJ 40404 3204 10 or or CC 40404 3204 11 may may MD 40404 3204 12 consist consist VB 40404 3204 13 in in IN 40404 3204 14 part part NN 40404 3204 15 of of IN 40404 3204 16 a a DT 40404 3204 17 felt felt NN 40404 3204 18 of of IN 40404 3204 19 minute minute NN 40404 3204 20 crystals crystal NNS 40404 3204 21 ; ; : 40404 3204 22 in in IN 40404 3204 23 either either DT 40404 3204 24 case case NN 40404 3204 25 it -PRON- PRP 40404 3204 26 represents represent VBZ 40404 3204 27 the the DT 40404 3204 28 consolidation consolidation NN 40404 3204 29 of of IN 40404 3204 30 the the DT 40404 3204 31 rock rock NN 40404 3204 32 after after IN 40404 3204 33 its -PRON- PRP$ 40404 3204 34 outpouring outpoure VBG 40404 3204 35 upon upon IN 40404 3204 36 the the DT 40404 3204 37 surface surface NN 40404 3204 38 . . . 40404 3205 1 On on IN 40404 3205 2 the the DT 40404 3205 3 other other JJ 40404 3205 4 hand hand NN 40404 3205 5 , , , 40404 3205 6 the the DT 40404 3205 7 large large JJ 40404 3205 8 crystals crystal NNS 40404 3205 9 of of IN 40404 3205 10 porphyry porphyry NN 40404 3205 11 have have VBP 40404 3205 12 slowly slowly RB 40404 3205 13 formed form VBN 40404 3205 14 deep deep RB 40404 3205 15 below below IN 40404 3205 16 the the DT 40404 3205 17 ground ground NN 40404 3205 18 at at IN 40404 3205 19 an an DT 40404 3205 20 earlier early JJR 40404 3205 21 date date NN 40404 3205 22 . . . 40404 3206 1 = = NFP 40404 3206 2 Columnar Columnar NNP 40404 3206 3 structure.= structure.= NNP 40404 3206 4 Just just RB 40404 3206 5 as as IN 40404 3206 6 wet wet JJ 40404 3206 7 starch starch NN 40404 3206 8 contracts contract NNS 40404 3206 9 on on IN 40404 3206 10 drying dry VBG 40404 3206 11 to to IN 40404 3206 12 prismatic prismatic JJ 40404 3206 13 forms form NNS 40404 3206 14 , , , 40404 3206 15 so so CC 40404 3206 16 lava lava NNP 40404 3206 17 often often RB 40404 3206 18 contracts contract VBZ 40404 3206 19 on on IN 40404 3206 20 cooling cool VBG 40404 3206 21 to to IN 40404 3206 22 a a DT 40404 3206 23 mass mass NN 40404 3206 24 of of IN 40404 3206 25 close close JJ 40404 3206 26 - - HYPH 40404 3206 27 set set NN 40404 3206 28 , , , 40404 3206 29 prismatic prismatic JJ 40404 3206 30 , , , 40404 3206 31 and and CC 40404 3206 32 commonly commonly RB 40404 3206 33 six six CD 40404 3206 34 - - HYPH 40404 3206 35 sided sided JJ 40404 3206 36 columns column NNS 40404 3206 37 , , , 40404 3206 38 which which WDT 40404 3206 39 stand stand VBP 40404 3206 40 at at IN 40404 3206 41 right right JJ 40404 3206 42 angles angle NNS 40404 3206 43 to to IN 40404 3206 44 the the DT 40404 3206 45 cooling cool VBG 40404 3206 46 surface surface NN 40404 3206 47 . . . 40404 3207 1 The the DT 40404 3207 2 upper upper JJ 40404 3207 3 portion portion NN 40404 3207 4 of of IN 40404 3207 5 a a DT 40404 3207 6 flow flow NN 40404 3207 7 , , , 40404 3207 8 on on IN 40404 3207 9 rapid rapid JJ 40404 3207 10 cooling cooling NN 40404 3207 11 from from IN 40404 3207 12 the the DT 40404 3207 13 surface surface NN 40404 3207 14 exposed expose VBN 40404 3207 15 to to IN 40404 3207 16 the the DT 40404 3207 17 air air NN 40404 3207 18 , , , 40404 3207 19 may may MD 40404 3207 20 contract contract VB 40404 3207 21 to to IN 40404 3207 22 a a DT 40404 3207 23 confused confused JJ 40404 3207 24 mass mass NN 40404 3207 25 of of IN 40404 3207 26 small small JJ 40404 3207 27 and and CC 40404 3207 28 irregular irregular JJ 40404 3207 29 prisms prism NNS 40404 3207 30 ; ; : 40404 3207 31 while while IN 40404 3207 32 the the DT 40404 3207 33 remainder remainder NN 40404 3207 34 forms form VBZ 40404 3207 35 large large JJ 40404 3207 36 and and CC 40404 3207 37 beautifully beautifully RB 40404 3207 38 regular regular JJ 40404 3207 39 columns column NNS 40404 3207 40 , , , 40404 3207 41 which which WDT 40404 3207 42 have have VBP 40404 3207 43 grown grow VBN 40404 3207 44 upward upward RB 40404 3207 45 by by IN 40404 3207 46 slow slow JJ 40404 3207 47 cooling cooling NN 40404 3207 48 from from IN 40404 3207 49 beneath beneath IN 40404 3207 50 ( ( -LRB- 40404 3207 51 Fig fig NN 40404 3207 52 . . . 40404 3208 1 227 227 CD 40404 3208 2 ) ) -RRB- 40404 3208 3 . . . 40404 3209 1 Fragmental Fragmental NNP 40404 3209 2 Materials Materials NNP 40404 3209 3 Rocks rock NNS 40404 3209 4 weighing weigh VBG 40404 3209 5 many many JJ 40404 3209 6 tons ton NNS 40404 3209 7 are be VBP 40404 3209 8 often often RB 40404 3209 9 thrown throw VBN 40404 3209 10 from from IN 40404 3209 11 a a DT 40404 3209 12 volcano volcano NN 40404 3209 13 at at IN 40404 3209 14 the the DT 40404 3209 15 beginning beginning NN 40404 3209 16 of of IN 40404 3209 17 an an DT 40404 3209 18 outburst outburst NN 40404 3209 19 by by IN 40404 3209 20 the the DT 40404 3209 21 breaking breaking NN 40404 3209 22 up up RP 40404 3209 23 of of IN 40404 3209 24 the the DT 40404 3209 25 solidified solidified JJ 40404 3209 26 floor floor NN 40404 3209 27 of of IN 40404 3209 28 the the DT 40404 3209 29 crater crater NN 40404 3209 30 ; ; , 40404 3209 31 and and CC 40404 3209 32 during during IN 40404 3209 33 the the DT 40404 3209 34 progress progress NN 40404 3209 35 of of IN 40404 3209 36 an an DT 40404 3209 37 eruption eruption NN 40404 3209 38 large large JJ 40404 3209 39 blocks block NNS 40404 3209 40 may may MD 40404 3209 41 be be VB 40404 3209 42 torn tear VBN 40404 3209 43 from from IN 40404 3209 44 the the DT 40404 3209 45 throat throat NN 40404 3209 46 of of IN 40404 3209 47 the the DT 40404 3209 48 volcano volcano NN 40404 3209 49 by by IN 40404 3209 50 the the DT 40404 3209 51 outrush outrush NN 40404 3209 52 of of IN 40404 3209 53 steam steam NN 40404 3209 54 . . . 40404 3210 1 But but CC 40404 3210 2 the the DT 40404 3210 3 most most RBS 40404 3210 4 important important JJ 40404 3210 5 fragmental fragmental JJ 40404 3210 6 materials material NNS 40404 3210 7 are be VBP 40404 3210 8 those those DT 40404 3210 9 derived derive VBN 40404 3210 10 from from IN 40404 3210 11 the the DT 40404 3210 12 lava lava NN 40404 3210 13 itself -PRON- PRP 40404 3210 14 . . . 40404 3211 1 As as IN 40404 3211 2 lava lava NN 40404 3211 3 rises rise VBZ 40404 3211 4 in in IN 40404 3211 5 the the DT 40404 3211 6 pipe pipe NN 40404 3211 7 , , , 40404 3211 8 the the DT 40404 3211 9 steam steam NN 40404 3211 10 which which WDT 40404 3211 11 permeates permeate VBZ 40404 3211 12 it -PRON- PRP 40404 3211 13 is be VBZ 40404 3211 14 released release VBN 40404 3211 15 from from IN 40404 3211 16 pressure pressure NN 40404 3211 17 and and CC 40404 3211 18 explodes explode NNS 40404 3211 19 , , , 40404 3211 20 hurling hurl VBG 40404 3211 21 the the DT 40404 3211 22 lava lava NN 40404 3211 23 into into IN 40404 3211 24 the the DT 40404 3211 25 air air NN 40404 3211 26 in in IN 40404 3211 27 fragments fragment NNS 40404 3211 28 of of IN 40404 3211 29 all all DT 40404 3211 30 sizes,--large sizes,--large , 40404 3211 31 pieces piece NNS 40404 3211 32 of of IN 40404 3211 33 scoria scoria NNP 40404 3211 34 , , , 40404 3211 35 _ _ NNP 40404 3211 36 lapilli lapilli NNP 40404 3211 37 _ _ NNP 40404 3211 38 ( ( -LRB- 40404 3211 39 fragments fragment VBZ 40404 3211 40 the the DT 40404 3211 41 size size NN 40404 3211 42 of of IN 40404 3211 43 a a DT 40404 3211 44 pea pea NN 40404 3211 45 or or CC 40404 3211 46 walnut walnut NN 40404 3211 47 ) ) -RRB- 40404 3211 48 , , , 40404 3211 49 volcanic volcanic JJ 40404 3211 50 " " `` 40404 3211 51 sand sand NN 40404 3211 52 " " '' 40404 3211 53 and and CC 40404 3211 54 volcanic volcanic JJ 40404 3211 55 " " '' 40404 3211 56 ashes ashe NNS 40404 3211 57 . . . 40404 3211 58 " " '' 40404 3212 1 The the DT 40404 3212 2 latter latter JJ 40404 3212 3 resemble resemble NN 40404 3212 4 in in IN 40404 3212 5 appearance appearance NN 40404 3212 6 the the DT 40404 3212 7 ashes ashe NNS 40404 3212 8 of of IN 40404 3212 9 wood wood NN 40404 3212 10 or or CC 40404 3212 11 coal coal NN 40404 3212 12 , , , 40404 3212 13 but but CC 40404 3212 14 they -PRON- PRP 40404 3212 15 are be VBP 40404 3212 16 not not RB 40404 3212 17 in in IN 40404 3212 18 any any DT 40404 3212 19 sense sense NN 40404 3212 20 , , , 40404 3212 21 like like IN 40404 3212 22 them -PRON- PRP 40404 3212 23 , , , 40404 3212 24 a a DT 40404 3212 25 residue residue NN 40404 3212 26 after after IN 40404 3212 27 combustion combustion NN 40404 3212 28 . . . 40404 3213 1 [ [ -LRB- 40404 3213 2 Illustration illustration NN 40404 3213 3 : : : 40404 3213 4 Fig Fig NNP 40404 3213 5 . . . 40404 3214 1 227 227 CD 40404 3214 2 . . . 40404 3215 1 Columnar Columnar NNP 40404 3215 2 Structure Structure NNP 40404 3215 3 in in IN 40404 3215 4 Basaltic Basaltic NNP 40404 3215 5 Lava Lava NNP 40404 3215 6 , , , 40404 3215 7 Scotland Scotland NNP 40404 3215 8 ] ] -RRB- 40404 3215 9 Volcanic Volcanic NNP 40404 3215 10 ashes ashe NNS 40404 3215 11 are be VBP 40404 3215 12 produced produce VBN 40404 3215 13 in in IN 40404 3215 14 several several JJ 40404 3215 15 ways way NNS 40404 3215 16 : : : 40404 3215 17 lava lava NN 40404 3215 18 rising rise VBG 40404 3215 19 in in IN 40404 3215 20 the the DT 40404 3215 21 volcanic volcanic JJ 40404 3215 22 duct duct NN 40404 3215 23 is be VBZ 40404 3215 24 exploded explode VBN 40404 3215 25 into into IN 40404 3215 26 fine fine JJ 40404 3215 27 dust dust NN 40404 3215 28 by by IN 40404 3215 29 the the DT 40404 3215 30 steam steam NN 40404 3215 31 which which WDT 40404 3215 32 permeates permeate VBZ 40404 3215 33 it -PRON- PRP 40404 3215 34 ; ; : 40404 3215 35 glassy glassy NNP 40404 3215 36 lava lava NNP 40404 3215 37 , , , 40404 3215 38 hurled hurl VBN 40404 3215 39 into into IN 40404 3215 40 the the DT 40404 3215 41 air air NN 40404 3215 42 and and CC 40404 3215 43 cooled cool VBD 40404 3215 44 suddenly suddenly RB 40404 3215 45 , , , 40404 3215 46 is be VBZ 40404 3215 47 brought bring VBN 40404 3215 48 into into IN 40404 3215 49 a a DT 40404 3215 50 state state NN 40404 3215 51 of of IN 40404 3215 52 high high JJ 40404 3215 53 strain strain NN 40404 3215 54 and and CC 40404 3215 55 tension tension NN 40404 3215 56 , , , 40404 3215 57 and and CC 40404 3215 58 , , , 40404 3215 59 like like IN 40404 3215 60 Prince Prince NNP 40404 3215 61 Rupert Rupert NNP 40404 3215 62 's 's POS 40404 3215 63 drops drop NNS 40404 3215 64 , , , 40404 3215 65 flies fly VBZ 40404 3215 66 to to IN 40404 3215 67 pieces piece NNS 40404 3215 68 at at IN 40404 3215 69 the the DT 40404 3215 70 least least JJS 40404 3215 71 provocation provocation NN 40404 3215 72 . . . 40404 3216 1 The the DT 40404 3216 2 clash clash NN 40404 3216 3 of of IN 40404 3216 4 rising rise VBG 40404 3216 5 and and CC 40404 3216 6 falling fall VBG 40404 3216 7 projectiles projectile NNS 40404 3216 8 also also RB 40404 3216 9 produces produce VBZ 40404 3216 10 some some DT 40404 3216 11 dust dust NN 40404 3216 12 , , , 40404 3216 13 a a DT 40404 3216 14 fair fair JJ 40404 3216 15 sample sample NN 40404 3216 16 of of IN 40404 3216 17 which which WDT 40404 3216 18 may may MD 40404 3216 19 be be VB 40404 3216 20 made make VBN 40404 3216 21 by by IN 40404 3216 22 grating grate VBG 40404 3216 23 together together RB 40404 3216 24 two two CD 40404 3216 25 pieces piece NNS 40404 3216 26 of of IN 40404 3216 27 pumice pumice NN 40404 3216 28 . . . 40404 3217 1 Beds bed NNS 40404 3217 2 of of IN 40404 3217 3 volcanic volcanic JJ 40404 3217 4 ash ash NN 40404 3217 5 occur occur VBP 40404 3217 6 widely widely RB 40404 3217 7 among among IN 40404 3217 8 recent recent JJ 40404 3217 9 deposits deposit NNS 40404 3217 10 in in IN 40404 3217 11 the the DT 40404 3217 12 western western JJ 40404 3217 13 United United NNP 40404 3217 14 States States NNP 40404 3217 15 . . . 40404 3218 1 In in IN 40404 3218 2 Nebraska Nebraska NNP 40404 3218 3 ash ash NN 40404 3218 4 beds bed NNS 40404 3218 5 are be VBP 40404 3218 6 found find VBN 40404 3218 7 in in IN 40404 3218 8 twenty twenty CD 40404 3218 9 counties county NNS 40404 3218 10 , , , 40404 3218 11 and and CC 40404 3218 12 are be VBP 40404 3218 13 often often RB 40404 3218 14 as as RB 40404 3218 15 white white JJ 40404 3218 16 as as IN 40404 3218 17 powdered powder VBN 40404 3218 18 pumice pumice NN 40404 3218 19 . . . 40404 3219 1 The the DT 40404 3219 2 beds bed NNS 40404 3219 3 grow grow VBP 40404 3219 4 thicker thick JJR 40404 3219 5 and and CC 40404 3219 6 coarser coarser NN 40404 3219 7 toward toward IN 40404 3219 8 the the DT 40404 3219 9 southwestern southwestern JJ 40404 3219 10 part part NN 40404 3219 11 of of IN 40404 3219 12 the the DT 40404 3219 13 state state NN 40404 3219 14 , , , 40404 3219 15 where where WRB 40404 3219 16 their -PRON- PRP$ 40404 3219 17 thickness thickness NN 40404 3219 18 sometimes sometimes RB 40404 3219 19 reaches reach VBZ 40404 3219 20 fifty fifty CD 40404 3219 21 feet foot NNS 40404 3219 22 . . . 40404 3220 1 In in IN 40404 3220 2 what what WDT 40404 3220 3 direction direction NN 40404 3220 4 would would MD 40404 3220 5 you -PRON- PRP 40404 3220 6 look look VB 40404 3220 7 for for IN 40404 3220 8 the the DT 40404 3220 9 now now RB 40404 3220 10 extinct extinct JJ 40404 3220 11 volcano volcano NN 40404 3220 12 whose whose WP$ 40404 3220 13 explosive explosive JJ 40404 3220 14 eruptions eruption NNS 40404 3220 15 are be VBP 40404 3220 16 thus thus RB 40404 3220 17 recorded record VBN 40404 3220 18 ? ? . 40404 3221 1 = = NFP 40404 3221 2 Tuff.= tuff.= ADD 40404 3221 3 This this DT 40404 3221 4 is be VBZ 40404 3221 5 a a DT 40404 3221 6 convenient convenient JJ 40404 3221 7 term term NN 40404 3221 8 designating designate VBG 40404 3221 9 any any DT 40404 3221 10 rock rock NN 40404 3221 11 composed compose VBN 40404 3221 12 of of IN 40404 3221 13 volcanic volcanic JJ 40404 3221 14 fragments fragment NNS 40404 3221 15 . . . 40404 3222 1 Coarse coarse JJ 40404 3222 2 tuffs tuff NNS 40404 3222 3 of of IN 40404 3222 4 angular angular JJ 40404 3222 5 fragments fragment NNS 40404 3222 6 are be VBP 40404 3222 7 called call VBN 40404 3222 8 _ _ NNP 40404 3222 9 volcanic volcanic NNP 40404 3222 10 breccia breccia NNP 40404 3222 11 _ _ NNP 40404 3222 12 , , , 40404 3222 13 and and CC 40404 3222 14 when when WRB 40404 3222 15 the the DT 40404 3222 16 fragments fragment NNS 40404 3222 17 have have VBP 40404 3222 18 been be VBN 40404 3222 19 rounded round VBN 40404 3222 20 and and CC 40404 3222 21 sorted sort VBN 40404 3222 22 by by IN 40404 3222 23 water water NN 40404 3222 24 the the DT 40404 3222 25 rock rock NN 40404 3222 26 is be VBZ 40404 3222 27 termed term VBN 40404 3222 28 a a DT 40404 3222 29 _ _ NNP 40404 3222 30 volcanic volcanic JJ 40404 3222 31 conglomerate conglomerate NN 40404 3222 32 _ _ NNP 40404 3222 33 . . . 40404 3223 1 Even even RB 40404 3223 2 when when WRB 40404 3223 3 deposited deposit VBN 40404 3223 4 in in IN 40404 3223 5 the the DT 40404 3223 6 open open JJ 40404 3223 7 air air NN 40404 3223 8 , , , 40404 3223 9 as as IN 40404 3223 10 on on IN 40404 3223 11 the the DT 40404 3223 12 slopes slope NNS 40404 3223 13 of of IN 40404 3223 14 a a DT 40404 3223 15 volcano volcano NN 40404 3223 16 , , , 40404 3223 17 tuffs tuff NNS 40404 3223 18 may may MD 40404 3223 19 be be VB 40404 3223 20 rudely rudely RB 40404 3223 21 bedded bed VBN 40404 3223 22 and and CC 40404 3223 23 their -PRON- PRP$ 40404 3223 24 fragments fragment NNS 40404 3223 25 more more RBR 40404 3223 26 or or CC 40404 3223 27 less less RBR 40404 3223 28 rounded rounded JJ 40404 3223 29 , , , 40404 3223 30 and and CC 40404 3223 31 unless unless IN 40404 3223 32 marine marine JJ 40404 3223 33 shells shell NNS 40404 3223 34 or or CC 40404 3223 35 the the DT 40404 3223 36 remains remain NNS 40404 3223 37 of of IN 40404 3223 38 land land NN 40404 3223 39 plants plant NNS 40404 3223 40 and and CC 40404 3223 41 animals animal NNS 40404 3223 42 are be VBP 40404 3223 43 found find VBN 40404 3223 44 as as IN 40404 3223 45 fossils fossil NNS 40404 3223 46 in in IN 40404 3223 47 them -PRON- PRP 40404 3223 48 , , , 40404 3223 49 there there EX 40404 3223 50 is be VBZ 40404 3223 51 often often RB 40404 3223 52 considerable considerable JJ 40404 3223 53 difficulty difficulty NN 40404 3223 54 in in IN 40404 3223 55 telling tell VBG 40404 3223 56 whether whether IN 40404 3223 57 they -PRON- PRP 40404 3223 58 were be VBD 40404 3223 59 laid lay VBN 40404 3223 60 in in IN 40404 3223 61 water water NN 40404 3223 62 or or CC 40404 3223 63 in in IN 40404 3223 64 air air NN 40404 3223 65 . . . 40404 3224 1 In in IN 40404 3224 2 either either DT 40404 3224 3 case case NN 40404 3224 4 they -PRON- PRP 40404 3224 5 soon soon RB 40404 3224 6 become become VBP 40404 3224 7 consolidated consolidated JJ 40404 3224 8 . . . 40404 3225 1 Chemical chemical NN 40404 3225 2 deposits deposit NNS 40404 3225 3 from from IN 40404 3225 4 percolating percolate VBG 40404 3225 5 waters water NNS 40404 3225 6 fill fill VBP 40404 3225 7 the the DT 40404 3225 8 interstices interstice NNS 40404 3225 9 , , , 40404 3225 10 and and CC 40404 3225 11 the the DT 40404 3225 12 bed bed NN 40404 3225 13 of of IN 40404 3225 14 loose loose JJ 40404 3225 15 fragments fragment NNS 40404 3225 16 is be VBZ 40404 3225 17 cemented cement VBN 40404 3225 18 to to IN 40404 3225 19 hard hard JJ 40404 3225 20 rock rock NN 40404 3225 21 . . . 40404 3226 1 The the DT 40404 3226 2 materials material NNS 40404 3226 3 of of IN 40404 3226 4 which which WDT 40404 3226 5 tuffs tuff NNS 40404 3226 6 are be VBP 40404 3226 7 composed compose VBN 40404 3226 8 are be VBP 40404 3226 9 easily easily RB 40404 3226 10 recognized recognize VBN 40404 3226 11 as as IN 40404 3226 12 volcanic volcanic JJ 40404 3226 13 in in IN 40404 3226 14 their -PRON- PRP$ 40404 3226 15 origin origin NN 40404 3226 16 . . . 40404 3227 1 The the DT 40404 3227 2 fragments fragment NNS 40404 3227 3 are be VBP 40404 3227 4 more more RBR 40404 3227 5 or or CC 40404 3227 6 less less RBR 40404 3227 7 cellular cellular JJ 40404 3227 8 , , , 40404 3227 9 according accord VBG 40404 3227 10 to to IN 40404 3227 11 the the DT 40404 3227 12 degree degree NN 40404 3227 13 to to TO 40404 3227 14 which which WDT 40404 3227 15 they -PRON- PRP 40404 3227 16 were be VBD 40404 3227 17 distended distend VBN 40404 3227 18 with with IN 40404 3227 19 steam steam NN 40404 3227 20 when when WRB 40404 3227 21 in in IN 40404 3227 22 a a DT 40404 3227 23 molten molten JJ 40404 3227 24 state state NN 40404 3227 25 , , , 40404 3227 26 and and CC 40404 3227 27 even even RB 40404 3227 28 in in IN 40404 3227 29 the the DT 40404 3227 30 finest fine JJS 40404 3227 31 dust dust NN 40404 3227 32 one one PRP 40404 3227 33 may may MD 40404 3227 34 see see VB 40404 3227 35 the the DT 40404 3227 36 glass glass NN 40404 3227 37 or or CC 40404 3227 38 the the DT 40404 3227 39 crystals crystal NNS 40404 3227 40 of of IN 40404 3227 41 lava lava NN 40404 3227 42 from from IN 40404 3227 43 which which WDT 40404 3227 44 it -PRON- PRP 40404 3227 45 was be VBD 40404 3227 46 derived derive VBN 40404 3227 47 . . . 40404 3228 1 Tuffs tuff NNS 40404 3228 2 often often RB 40404 3228 3 contain contain VBP 40404 3228 4 _ _ NNP 40404 3228 5 volcanic volcanic JJ 40404 3228 6 bombs_,--balls bombs_,--ball NNS 40404 3228 7 of of IN 40404 3228 8 lava lava NNP 40404 3228 9 which which WDT 40404 3228 10 took take VBD 40404 3228 11 shape shape NN 40404 3228 12 while while IN 40404 3228 13 whirling whirl VBG 40404 3228 14 in in IN 40404 3228 15 the the DT 40404 3228 16 air air NN 40404 3228 17 , , , 40404 3228 18 and and CC 40404 3228 19 solidified solidify VBN 40404 3228 20 before before IN 40404 3228 21 falling fall VBG 40404 3228 22 to to IN 40404 3228 23 the the DT 40404 3228 24 ground ground NN 40404 3228 25 . . . 40404 3229 1 [ [ -LRB- 40404 3229 2 Illustration illustration NN 40404 3229 3 : : : 40404 3229 4 Fig Fig NNP 40404 3229 5 . . . 40404 3230 1 228 228 CD 40404 3230 2 . . . 40404 3231 1 Volcanic Volcanic NNP 40404 3231 2 Bombs Bombs NNP 40404 3231 3 , , , 40404 3231 4 Cinder Cinder NNP 40404 3231 5 Cone Cone NNP 40404 3231 6 , , , 40404 3231 7 California California NNP 40404 3231 8 ] ] -RRB- 40404 3231 9 [ [ -LRB- 40404 3231 10 Illustration illustration NN 40404 3231 11 : : : 40404 3231 12 Fig Fig NNP 40404 3231 13 . . . 40404 3232 1 229 229 CD 40404 3232 2 . . . 40404 3233 1 A a DT 40404 3233 2 Volcanic volcanic JJ 40404 3233 3 Cone Cone NNP 40404 3233 4 , , , 40404 3233 5 Arizona Arizona NNP 40404 3233 6 ] ] -RRB- 40404 3233 7 = = -RRB- 40404 3233 8 Ancient ancient JJ 40404 3233 9 volcanic volcanic JJ 40404 3233 10 rocks.= rocks.= NN 40404 3233 11 It -PRON- PRP 40404 3233 12 is be VBZ 40404 3233 13 in in IN 40404 3233 14 these these DT 40404 3233 15 materials material NNS 40404 3233 16 and and CC 40404 3233 17 structures structure NNS 40404 3233 18 which which WDT 40404 3233 19 we -PRON- PRP 40404 3233 20 have have VBP 40404 3233 21 described describe VBN 40404 3233 22 that that IN 40404 3233 23 volcanoes volcano NNS 40404 3233 24 leave leave VBP 40404 3233 25 some some DT 40404 3233 26 of of IN 40404 3233 27 their -PRON- PRP$ 40404 3233 28 most most RBS 40404 3233 29 enduring enduring JJ 40404 3233 30 records record NNS 40404 3233 31 . . . 40404 3234 1 Even even RB 40404 3234 2 the the DT 40404 3234 3 volcanic volcanic JJ 40404 3234 4 rocks rock NNS 40404 3234 5 of of IN 40404 3234 6 the the DT 40404 3234 7 earliest early JJS 40404 3234 8 geological geological JJ 40404 3234 9 ages age NNS 40404 3234 10 , , , 40404 3234 11 uplifted uplifted JJ 40404 3234 12 after after IN 40404 3234 13 long long JJ 40404 3234 14 burial burial NN 40404 3234 15 beneath beneath IN 40404 3234 16 the the DT 40404 3234 17 sea sea NN 40404 3234 18 and and CC 40404 3234 19 exposed expose VBN 40404 3234 20 to to IN 40404 3234 21 view view VB 40404 3234 22 by by IN 40404 3234 23 deep deep JJ 40404 3234 24 erosion erosion NN 40404 3234 25 , , , 40404 3234 26 are be VBP 40404 3234 27 recognized recognize VBN 40404 3234 28 and and CC 40404 3234 29 their -PRON- PRP$ 40404 3234 30 history history NN 40404 3234 31 read read VBD 40404 3234 32 despite despite IN 40404 3234 33 the the DT 40404 3234 34 many many JJ 40404 3234 35 changes change NNS 40404 3234 36 which which WDT 40404 3234 37 they -PRON- PRP 40404 3234 38 may may MD 40404 3234 39 have have VB 40404 3234 40 undergone undergo VBN 40404 3234 41 . . . 40404 3235 1 A a DT 40404 3235 2 sheet sheet NN 40404 3235 3 of of IN 40404 3235 4 ancient ancient JJ 40404 3235 5 lava lava NN 40404 3235 6 may may MD 40404 3235 7 be be VB 40404 3235 8 distinguished distinguish VBN 40404 3235 9 by by IN 40404 3235 10 its -PRON- PRP$ 40404 3235 11 composition composition NN 40404 3235 12 from from IN 40404 3235 13 the the DT 40404 3235 14 sediments sediment NNS 40404 3235 15 among among IN 40404 3235 16 which which WDT 40404 3235 17 it -PRON- PRP 40404 3235 18 is be VBZ 40404 3235 19 imbedded imbed VBN 40404 3235 20 . . . 40404 3236 1 The the DT 40404 3236 2 direction direction NN 40404 3236 3 of of IN 40404 3236 4 its -PRON- PRP$ 40404 3236 5 flow flow NN 40404 3236 6 lines line NNS 40404 3236 7 may may MD 40404 3236 8 be be VB 40404 3236 9 noted note VBN 40404 3236 10 . . . 40404 3237 1 The the DT 40404 3237 2 cellular cellular JJ 40404 3237 3 and and CC 40404 3237 4 slaggy slaggy NN 40404 3237 5 surface surface NN 40404 3237 6 where where WRB 40404 3237 7 the the DT 40404 3237 8 pasty pasty NN 40404 3237 9 lava lava NN 40404 3237 10 was be VBD 40404 3237 11 distended distend VBN 40404 3237 12 by by IN 40404 3237 13 escaping escape VBG 40404 3237 14 steam steam NN 40404 3237 15 is be VBZ 40404 3237 16 recognized recognize VBN 40404 3237 17 by by IN 40404 3237 18 the the DT 40404 3237 19 amygdules amygdule NNS 40404 3237 20 which which WDT 40404 3237 21 now now RB 40404 3237 22 fill fill VBP 40404 3237 23 the the DT 40404 3237 24 ancient ancient JJ 40404 3237 25 steam steam NN 40404 3237 26 blebs blebs NN 40404 3237 27 . . . 40404 3238 1 In in IN 40404 3238 2 a a DT 40404 3238 3 pile pile NN 40404 3238 4 of of IN 40404 3238 5 successive successive JJ 40404 3238 6 sheets sheet NNS 40404 3238 7 of of IN 40404 3238 8 lava lava NN 40404 3238 9 each each DT 40404 3238 10 flow flow NN 40404 3238 11 may may MD 40404 3238 12 be be VB 40404 3238 13 distinguished distinguish VBN 40404 3238 14 and and CC 40404 3238 15 its -PRON- PRP$ 40404 3238 16 thickness thickness NN 40404 3238 17 measured measure VBN 40404 3238 18 ; ; : 40404 3238 19 for for IN 40404 3238 20 the the DT 40404 3238 21 surface surface NN 40404 3238 22 of of IN 40404 3238 23 each each DT 40404 3238 24 sheet sheet NN 40404 3238 25 is be VBZ 40404 3238 26 glassy glassy JJ 40404 3238 27 and and CC 40404 3238 28 scoriaceous scoriaceous JJ 40404 3238 29 , , , 40404 3238 30 while while IN 40404 3238 31 beneath beneath IN 40404 3238 32 its -PRON- PRP$ 40404 3238 33 upper upper JJ 40404 3238 34 portions portion NNS 40404 3238 35 the the DT 40404 3238 36 lava lava NN 40404 3238 37 of of IN 40404 3238 38 each each DT 40404 3238 39 flow flow NN 40404 3238 40 is be VBZ 40404 3238 41 more more RBR 40404 3238 42 dense dense JJ 40404 3238 43 and and CC 40404 3238 44 stony stony JJ 40404 3238 45 . . . 40404 3239 1 The the DT 40404 3239 2 length length NN 40404 3239 3 of of IN 40404 3239 4 time time NN 40404 3239 5 which which WDT 40404 3239 6 elapsed elapse VBD 40404 3239 7 before before IN 40404 3239 8 a a DT 40404 3239 9 sheet sheet NN 40404 3239 10 was be VBD 40404 3239 11 buried bury VBN 40404 3239 12 beneath beneath IN 40404 3239 13 the the DT 40404 3239 14 materials material NNS 40404 3239 15 of of IN 40404 3239 16 succeeding succeed VBG 40404 3239 17 eruptions eruption NNS 40404 3239 18 may may MD 40404 3239 19 be be VB 40404 3239 20 told tell VBN 40404 3239 21 by by IN 40404 3239 22 the the DT 40404 3239 23 amount amount NN 40404 3239 24 of of IN 40404 3239 25 weathering weathering NN 40404 3239 26 which which WDT 40404 3239 27 it -PRON- PRP 40404 3239 28 had have VBD 40404 3239 29 undergone undergo VBN 40404 3239 30 , , , 40404 3239 31 the the DT 40404 3239 32 depth depth NN 40404 3239 33 of of IN 40404 3239 34 ancient ancient JJ 40404 3239 35 soil soil NN 40404 3239 36 -- -- : 40404 3239 37 now now RB 40404 3239 38 baked bake VBN 40404 3239 39 to to IN 40404 3239 40 solid solid JJ 40404 3239 41 rock rock NN 40404 3239 42 -- -- : 40404 3239 43 upon upon IN 40404 3239 44 it -PRON- PRP 40404 3239 45 , , , 40404 3239 46 and and CC 40404 3239 47 the the DT 40404 3239 48 erosion erosion NN 40404 3239 49 which which WDT 40404 3239 50 it -PRON- PRP 40404 3239 51 had have VBD 40404 3239 52 suffered suffer VBN 40404 3239 53 in in IN 40404 3239 54 the the DT 40404 3239 55 interval interval NN 40404 3239 56 . . . 40404 3240 1 If if IN 40404 3240 2 the the DT 40404 3240 3 flow flow NN 40404 3240 4 occurred occur VBD 40404 3240 5 from from IN 40404 3240 6 some some DT 40404 3240 7 submarine submarine NN 40404 3240 8 volcano volcano NN 40404 3240 9 , , , 40404 3240 10 we -PRON- PRP 40404 3240 11 may may MD 40404 3240 12 recognize recognize VB 40404 3240 13 the the DT 40404 3240 14 fact fact NN 40404 3240 15 by by IN 40404 3240 16 the the DT 40404 3240 17 sea sea NN 40404 3240 18 - - HYPH 40404 3240 19 laid lay VBN 40404 3240 20 sediments sediment NNS 40404 3240 21 which which WDT 40404 3240 22 cover cover VBP 40404 3240 23 it -PRON- PRP 40404 3240 24 , , , 40404 3240 25 filling fill VBG 40404 3240 26 the the DT 40404 3240 27 cracks crack NNS 40404 3240 28 and and CC 40404 3240 29 crevices crevice NNS 40404 3240 30 of of IN 40404 3240 31 its -PRON- PRP$ 40404 3240 32 upper upper JJ 40404 3240 33 surface surface NN 40404 3240 34 and and CC 40404 3240 35 containing contain VBG 40404 3240 36 pieces piece NNS 40404 3240 37 of of IN 40404 3240 38 lava lava NN 40404 3240 39 washed wash VBD 40404 3240 40 from from IN 40404 3240 41 it -PRON- PRP 40404 3240 42 in in IN 40404 3240 43 their -PRON- PRP$ 40404 3240 44 basal basal NN 40404 3240 45 layers layer NNS 40404 3240 46 . . . 40404 3241 1 Long long RB 40404 3241 2 - - HYPH 40404 3241 3 buried bury VBN 40404 3241 4 glassy glassy NNP 40404 3241 5 lavas lavas NNP 40404 3241 6 devitrify devitrify NNP 40404 3241 7 , , , 40404 3241 8 or or CC 40404 3241 9 pass pass VB 40404 3241 10 to to IN 40404 3241 11 a a DT 40404 3241 12 stony stony JJ 40404 3241 13 condition condition NN 40404 3241 14 , , , 40404 3241 15 under under IN 40404 3241 16 the the DT 40404 3241 17 unceasing unceasing NN 40404 3241 18 action action NN 40404 3241 19 of of IN 40404 3241 20 underground underground JJ 40404 3241 21 waters water NNS 40404 3241 22 ; ; : 40404 3241 23 but but CC 40404 3241 24 their -PRON- PRP$ 40404 3241 25 flow flow NN 40404 3241 26 lines line NNS 40404 3241 27 and and CC 40404 3241 28 perlitic perlitic JJ 40404 3241 29 and and CC 40404 3241 30 spherulitic spherulitic JJ 40404 3241 31 structures structure NNS 40404 3241 32 remain remain VBP 40404 3241 33 to to TO 40404 3241 34 tell tell VB 40404 3241 35 of of IN 40404 3241 36 their -PRON- PRP$ 40404 3241 37 original original JJ 40404 3241 38 state state NN 40404 3241 39 . . . 40404 3242 1 Ancient ancient JJ 40404 3242 2 tuffs tuff NNS 40404 3242 3 are be VBP 40404 3242 4 known know VBN 40404 3242 5 by by IN 40404 3242 6 the the DT 40404 3242 7 fragmental fragmental JJ 40404 3242 8 character character NN 40404 3242 9 of of IN 40404 3242 10 their -PRON- PRP$ 40404 3242 11 volcanic volcanic JJ 40404 3242 12 material material NN 40404 3242 13 , , , 40404 3242 14 even even RB 40404 3242 15 though though IN 40404 3242 16 they -PRON- PRP 40404 3242 17 have have VBP 40404 3242 18 been be VBN 40404 3242 19 altered alter VBN 40404 3242 20 to to TO 40404 3242 21 firm firm VB 40404 3242 22 rock rock NN 40404 3242 23 . . . 40404 3243 1 Some some DT 40404 3243 2 remains remain NNS 40404 3243 3 of of IN 40404 3243 4 land land NN 40404 3243 5 animals animal NNS 40404 3243 6 and and CC 40404 3243 7 plants plant NNS 40404 3243 8 may may MD 40404 3243 9 be be VB 40404 3243 10 found find VBN 40404 3243 11 imbedded imbed VBN 40404 3243 12 to to TO 40404 3243 13 tell tell VB 40404 3243 14 that that IN 40404 3243 15 the the DT 40404 3243 16 beds bed NNS 40404 3243 17 were be VBD 40404 3243 18 laid lay VBN 40404 3243 19 in in IN 40404 3243 20 open open JJ 40404 3243 21 air air NN 40404 3243 22 ; ; : 40404 3243 23 while while IN 40404 3243 24 the the DT 40404 3243 25 remains remain NNS 40404 3243 26 of of IN 40404 3243 27 marine marine JJ 40404 3243 28 organisms organism NNS 40404 3243 29 would would MD 40404 3243 30 prove prove VB 40404 3243 31 as as RB 40404 3243 32 surely surely RB 40404 3243 33 that that IN 40404 3243 34 the the DT 40404 3243 35 tuffs tuff NNS 40404 3243 36 were be VBD 40404 3243 37 deposited deposit VBN 40404 3243 38 in in IN 40404 3243 39 the the DT 40404 3243 40 sea sea NN 40404 3243 41 . . . 40404 3244 1 In in IN 40404 3244 2 these these DT 40404 3244 3 ways way NNS 40404 3244 4 ancient ancient JJ 40404 3244 5 volcanoes volcano NNS 40404 3244 6 have have VBP 40404 3244 7 been be VBN 40404 3244 8 recognized recognize VBN 40404 3244 9 near near IN 40404 3244 10 Boston Boston NNP 40404 3244 11 , , , 40404 3244 12 in in IN 40404 3244 13 southeastern southeastern JJ 40404 3244 14 Pennsylvania Pennsylvania NNP 40404 3244 15 , , , 40404 3244 16 about about IN 40404 3244 17 Lake Lake NNP 40404 3244 18 Superior Superior NNP 40404 3244 19 , , , 40404 3244 20 and and CC 40404 3244 21 in in IN 40404 3244 22 other other JJ 40404 3244 23 regions region NNS 40404 3244 24 of of IN 40404 3244 25 the the DT 40404 3244 26 United United NNP 40404 3244 27 States States NNP 40404 3244 28 . . . 40404 3245 1 The the DT 40404 3245 2 Life Life NNP 40404 3245 3 History history NN 40404 3245 4 of of IN 40404 3245 5 a a DT 40404 3245 6 Volcano volcano NN 40404 3245 7 The the DT 40404 3245 8 invasion invasion NN 40404 3245 9 of of IN 40404 3245 10 a a DT 40404 3245 11 region region NN 40404 3245 12 by by IN 40404 3245 13 volcanic volcanic JJ 40404 3245 14 forces force NNS 40404 3245 15 is be VBZ 40404 3245 16 attended attend VBN 40404 3245 17 by by IN 40404 3245 18 movements movement NNS 40404 3245 19 of of IN 40404 3245 20 the the DT 40404 3245 21 crust crust NN 40404 3245 22 heralded herald VBN 40404 3245 23 by by IN 40404 3245 24 earthquakes earthquake NNS 40404 3245 25 . . . 40404 3246 1 A a DT 40404 3246 2 fissure fissure NN 40404 3246 3 or or CC 40404 3246 4 a a DT 40404 3246 5 pipe pipe NN 40404 3246 6 is be VBZ 40404 3246 7 opened open VBN 40404 3246 8 and and CC 40404 3246 9 the the DT 40404 3246 10 building building NN 40404 3246 11 of of IN 40404 3246 12 the the DT 40404 3246 13 cone cone NN 40404 3246 14 or or CC 40404 3246 15 the the DT 40404 3246 16 spreading spreading NN 40404 3246 17 of of IN 40404 3246 18 wide wide JJ 40404 3246 19 lava lava NN 40404 3246 20 sheets sheet NNS 40404 3246 21 is be VBZ 40404 3246 22 begun begin VBN 40404 3246 23 . . . 40404 3247 1 = = NFP 40404 3247 2 Volcanic volcanic JJ 40404 3247 3 cones.= cones.= CD 40404 3247 4 The the DT 40404 3247 5 shape shape NN 40404 3247 6 of of IN 40404 3247 7 a a DT 40404 3247 8 volcanic volcanic JJ 40404 3247 9 cone cone NN 40404 3247 10 depends depend VBZ 40404 3247 11 chiefly chiefly RB 40404 3247 12 on on IN 40404 3247 13 the the DT 40404 3247 14 materials material NNS 40404 3247 15 erupted erupt VBD 40404 3247 16 . . . 40404 3248 1 Cones cone NNS 40404 3248 2 made make VBN 40404 3248 3 of of IN 40404 3248 4 fragments fragment NNS 40404 3248 5 may may MD 40404 3248 6 have have VB 40404 3248 7 sides side NNS 40404 3248 8 as as RB 40404 3248 9 steep steep JJ 40404 3248 10 as as IN 40404 3248 11 the the DT 40404 3248 12 angle angle NN 40404 3248 13 of of IN 40404 3248 14 repose repose NN 40404 3248 15 , , , 40404 3248 16 which which WDT 40404 3248 17 in in IN 40404 3248 18 the the DT 40404 3248 19 case case NN 40404 3248 20 of of IN 40404 3248 21 coarse coarse JJ 40404 3248 22 scoria scoria NNP 40404 3248 23 is be VBZ 40404 3248 24 sometimes sometimes RB 40404 3248 25 as as RB 40404 3248 26 high high JJ 40404 3248 27 as as IN 40404 3248 28 thirty thirty CD 40404 3248 29 or or CC 40404 3248 30 forty forty CD 40404 3248 31 degrees degree NNS 40404 3248 32 . . . 40404 3249 1 About about IN 40404 3249 2 the the DT 40404 3249 3 base base NN 40404 3249 4 of of IN 40404 3249 5 the the DT 40404 3249 6 mountain mountain NN 40404 3249 7 the the DT 40404 3249 8 finer fine JJR 40404 3249 9 materials material NNS 40404 3249 10 erupted erupt VBN 40404 3249 11 are be VBP 40404 3249 12 spread spread VBN 40404 3249 13 in in IN 40404 3249 14 more more RBR 40404 3249 15 gentle gentle JJ 40404 3249 16 slopes slope NNS 40404 3249 17 , , , 40404 3249 18 and and CC 40404 3249 19 are be VBP 40404 3249 20 also also RB 40404 3249 21 washed wash VBN 40404 3249 22 forward forward RB 40404 3249 23 by by IN 40404 3249 24 rains rain NNS 40404 3249 25 and and CC 40404 3249 26 streams stream NNS 40404 3249 27 . . . 40404 3250 1 The the DT 40404 3250 2 normal normal JJ 40404 3250 3 profile profile NN 40404 3250 4 is be VBZ 40404 3250 5 thus thus RB 40404 3250 6 a a DT 40404 3250 7 symmetric symmetric JJ 40404 3250 8 cone cone NN 40404 3250 9 with with IN 40404 3250 10 a a DT 40404 3250 11 flaring flaring JJ 40404 3250 12 base base NN 40404 3250 13 . . . 40404 3251 1 [ [ -LRB- 40404 3251 2 Illustration illustration NN 40404 3251 3 : : : 40404 3251 4 Fig Fig NNP 40404 3251 5 . . . 40404 3252 1 230 230 CD 40404 3252 2 . . . 40404 3253 1 Sarcoui Sarcoui NNP 40404 3253 2 , , , 40404 3253 3 a a DT 40404 3253 4 Trachyte Trachyte NNP 40404 3253 5 Dome Dome NNP 40404 3253 6 , , , 40404 3253 7 France France NNP 40404 3253 8 ] ] -RRB- 40404 3253 9 Cones Cones NNP 40404 3253 10 built build VBD 40404 3253 11 of of IN 40404 3253 12 lava lava NN 40404 3253 13 vary vary VBP 40404 3253 14 in in IN 40404 3253 15 form form NN 40404 3253 16 according accord VBG 40404 3253 17 to to IN 40404 3253 18 the the DT 40404 3253 19 liquidity liquidity NN 40404 3253 20 of of IN 40404 3253 21 the the DT 40404 3253 22 lava lava NN 40404 3253 23 . . . 40404 3254 1 Domes dome NNS 40404 3254 2 of of IN 40404 3254 3 gentle gentle JJ 40404 3254 4 slope slope NN 40404 3254 5 , , , 40404 3254 6 as as IN 40404 3254 7 those those DT 40404 3254 8 of of IN 40404 3254 9 Hawaii Hawaii NNP 40404 3254 10 , , , 40404 3254 11 for for IN 40404 3254 12 example example NN 40404 3254 13 , , , 40404 3254 14 are be VBP 40404 3254 15 formed form VBN 40404 3254 16 of of IN 40404 3254 17 basalt basalt NN 40404 3254 18 , , , 40404 3254 19 which which WDT 40404 3254 20 flows flow VBZ 40404 3254 21 to to IN 40404 3254 22 long long JJ 40404 3254 23 distances distance NNS 40404 3254 24 before before IN 40404 3254 25 it -PRON- PRP 40404 3254 26 congeals congeal VBZ 40404 3254 27 . . . 40404 3255 1 When when WRB 40404 3255 2 superheated superheate VBN 40404 3255 3 and and CC 40404 3255 4 emitted emit VBN 40404 3255 5 from from IN 40404 3255 6 many many JJ 40404 3255 7 vents vent NNS 40404 3255 8 , , , 40404 3255 9 this this DT 40404 3255 10 easily easily RB 40404 3255 11 melted melt VBN 40404 3255 12 lava lava NN 40404 3255 13 builds build VBZ 40404 3255 14 great great NNP 40404 3255 15 plateaus plateaus NNP 40404 3255 16 , , , 40404 3255 17 such such JJ 40404 3255 18 as as IN 40404 3255 19 that that DT 40404 3255 20 of of IN 40404 3255 21 Iceland Iceland NNP 40404 3255 22 . . . 40404 3256 1 On on IN 40404 3256 2 the the DT 40404 3256 3 other other JJ 40404 3256 4 hand hand NN 40404 3256 5 , , , 40404 3256 6 lavas lavas NNP 40404 3256 7 less less RBR 40404 3256 8 fusible fusible JJ 40404 3256 9 , , , 40404 3256 10 or or CC 40404 3256 11 poured pour VBD 40404 3256 12 out out RP 40404 3256 13 at at IN 40404 3256 14 a a DT 40404 3256 15 lower low JJR 40404 3256 16 temperature temperature NN 40404 3256 17 , , , 40404 3256 18 stiffen stiffen NNP 40404 3256 19 when when WRB 40404 3256 20 they -PRON- PRP 40404 3256 21 have have VBP 40404 3256 22 flowed flow VBN 40404 3256 23 but but CC 40404 3256 24 a a DT 40404 3256 25 short short JJ 40404 3256 26 distance distance NN 40404 3256 27 , , , 40404 3256 28 and and CC 40404 3256 29 accumulate accumulate VBP 40404 3256 30 in in IN 40404 3256 31 a a DT 40404 3256 32 steep steep JJ 40404 3256 33 cone cone NN 40404 3256 34 . . . 40404 3257 1 Trachyte trachyte NN 40404 3257 2 has have VBZ 40404 3257 3 been be VBN 40404 3257 4 extruded extrude VBN 40404 3257 5 in in IN 40404 3257 6 a a DT 40404 3257 7 state state NN 40404 3257 8 so so RB 40404 3257 9 viscid viscid JJ 40404 3257 10 that that IN 40404 3257 11 it -PRON- PRP 40404 3257 12 has have VBZ 40404 3257 13 formed form VBN 40404 3257 14 steep steep JJ 40404 3257 15 - - HYPH 40404 3257 16 sided sided JJ 40404 3257 17 domes dome NNS 40404 3257 18 like like IN 40404 3257 19 that that DT 40404 3257 20 of of IN 40404 3257 21 Sarcoui Sarcoui NNP 40404 3257 22 ( ( -LRB- 40404 3257 23 Fig fig NN 40404 3257 24 . . . 40404 3258 1 230 230 CD 40404 3258 2 ) ) -RRB- 40404 3258 3 . . . 40404 3259 1 Most Most JJS 40404 3259 2 volcanoes volcano NNS 40404 3259 3 are be VBP 40404 3259 4 built build VBN 40404 3259 5 , , , 40404 3259 6 like like IN 40404 3259 7 Vesuvius Vesuvius NNP 40404 3259 8 , , , 40404 3259 9 both both DT 40404 3259 10 of of IN 40404 3259 11 lava lava NN 40404 3259 12 flows flow NNS 40404 3259 13 and and CC 40404 3259 14 of of IN 40404 3259 15 tuffs tuff NNS 40404 3259 16 , , , 40404 3259 17 and and CC 40404 3259 18 sections section NNS 40404 3259 19 show show VBP 40404 3259 20 that that IN 40404 3259 21 the the DT 40404 3259 22 structure structure NN 40404 3259 23 of of IN 40404 3259 24 the the DT 40404 3259 25 cone cone NN 40404 3259 26 consists consist VBZ 40404 3259 27 of of IN 40404 3259 28 outward outward RB 40404 3259 29 - - HYPH 40404 3259 30 dipping dipping NN 40404 3259 31 , , , 40404 3259 32 alternating alternate VBG 40404 3259 33 layers layer NNS 40404 3259 34 of of IN 40404 3259 35 lava lava NNP 40404 3259 36 , , , 40404 3259 37 scoria scoria NNP 40404 3259 38 , , , 40404 3259 39 and and CC 40404 3259 40 ashes ashe NNS 40404 3259 41 . . . 40404 3260 1 [ [ -LRB- 40404 3260 2 Illustration illustration NN 40404 3260 3 : : : 40404 3260 4 Fig Fig NNP 40404 3260 5 . . . 40404 3261 1 231 231 CD 40404 3261 2 . . . 40404 3262 1 Section section NN 40404 3262 2 of of IN 40404 3262 3 Vesuvius Vesuvius NNP 40404 3262 4 _ _ NNP 40404 3262 5 V V NNP 40404 3262 6 _ _ NNP 40404 3262 7 , , , 40404 3262 8 Vesuvius Vesuvius NNP 40404 3262 9 ; ; : 40404 3262 10 _ _ NNP 40404 3262 11 S S NNP 40404 3262 12 _ _ NNP 40404 3262 13 , , , 40404 3262 14 Somma Somma NNP 40404 3262 15 , , , 40404 3262 16 a a DT 40404 3262 17 mountainous mountainous JJ 40404 3262 18 rampart rampart NN 40404 3262 19 half half NN 40404 3262 20 encircling encircle VBG 40404 3262 21 Vesuvius Vesuvius NNP 40404 3262 22 , , , 40404 3262 23 and and CC 40404 3262 24 like like IN 40404 3262 25 it -PRON- PRP 40404 3262 26 built build VBN 40404 3262 27 of of IN 40404 3262 28 outward outward RB 40404 3262 29 - - HYPH 40404 3262 30 dipping dipping NN 40404 3262 31 sheets sheet NNS 40404 3262 32 of of IN 40404 3262 33 tuff tuff NNP 40404 3262 34 and and CC 40404 3262 35 lava lava NN 40404 3262 36 ; ; : 40404 3262 37 _ _ NNP 40404 3262 38 a a DT 40404 3262 39 _ _ NNP 40404 3262 40 , , , 40404 3262 41 crystalline crystalline NN 40404 3262 42 rocks rock NNS 40404 3262 43 ; ; : 40404 3262 44 _ _ NNP 40404 3262 45 b b NNP 40404 3262 46 _ _ NNP 40404 3262 47 , , , 40404 3262 48 marine marine JJ 40404 3262 49 strata strata NN 40404 3262 50 ; ; : 40404 3262 51 _ _ NNP 40404 3262 52 c c NNP 40404 3262 53 _ _ NNP 40404 3262 54 , , , 40404 3262 55 tuffs tuff NNS 40404 3262 56 containing contain VBG 40404 3262 57 seashells seashell NNS 40404 3262 58 . . . 40404 3263 1 Which which WDT 40404 3263 2 is be VBZ 40404 3263 3 the the DT 40404 3263 4 older old JJR 40404 3263 5 mountain mountain NN 40404 3263 6 , , , 40404 3263 7 Vesuvius Vesuvius NNP 40404 3263 8 or or CC 40404 3263 9 Somma Somma NNP 40404 3263 10 ? ? . 40404 3264 1 Of of IN 40404 3264 2 what what WP 40404 3264 3 is be VBZ 40404 3264 4 Somma Somma NNP 40404 3264 5 a a DT 40404 3264 6 remnant remnant NN 40404 3264 7 ? ? . 40404 3265 1 Draw draw VB 40404 3265 2 a a DT 40404 3265 3 diagram diagram NN 40404 3265 4 showing show VBG 40404 3265 5 its -PRON- PRP$ 40404 3265 6 original original JJ 40404 3265 7 outline outline NN 40404 3265 8 . . . 40404 3266 1 Suggest suggest VB 40404 3266 2 what what WP 40404 3266 3 processes process NNS 40404 3266 4 may may MD 40404 3266 5 have have VB 40404 3266 6 brought bring VBN 40404 3266 7 it -PRON- PRP 40404 3266 8 to to IN 40404 3266 9 its -PRON- PRP$ 40404 3266 10 present present JJ 40404 3266 11 form form NN 40404 3266 12 . . . 40404 3267 1 What what WDT 40404 3267 2 record record NN 40404 3267 3 do do VBP 40404 3267 4 you -PRON- PRP 40404 3267 5 find find VB 40404 3267 6 of of IN 40404 3267 7 the the DT 40404 3267 8 earliest early JJS 40404 3267 9 volcanic volcanic JJ 40404 3267 10 activity activity NN 40404 3267 11 ? ? . 40404 3268 1 What what WP 40404 3268 2 do do VBP 40404 3268 3 you -PRON- PRP 40404 3268 4 infer infer VB 40404 3268 5 as as IN 40404 3268 6 to to IN 40404 3268 7 the the DT 40404 3268 8 beginnings beginning NNS 40404 3268 9 of of IN 40404 3268 10 the the DT 40404 3268 11 volcano volcano NN 40404 3268 12 ? ? . 40404 3268 13 ] ] -RRB- 40404 3269 1 From from IN 40404 3269 2 time time NN 40404 3269 3 to to IN 40404 3269 4 time time NN 40404 3269 5 the the DT 40404 3269 6 cone cone NN 40404 3269 7 is be VBZ 40404 3269 8 rent rent NN 40404 3269 9 by by IN 40404 3269 10 the the DT 40404 3269 11 violence violence NN 40404 3269 12 of of IN 40404 3269 13 explosions explosion NNS 40404 3269 14 and and CC 40404 3269 15 by by IN 40404 3269 16 the the DT 40404 3269 17 weight weight NN 40404 3269 18 of of IN 40404 3269 19 the the DT 40404 3269 20 column column NN 40404 3269 21 of of IN 40404 3269 22 lava lava NN 40404 3269 23 in in IN 40404 3269 24 the the DT 40404 3269 25 pipe pipe NN 40404 3269 26 . . . 40404 3270 1 The the DT 40404 3270 2 fissures fissure NNS 40404 3270 3 are be VBP 40404 3270 4 filled fill VBN 40404 3270 5 with with IN 40404 3270 6 lava lava NN 40404 3270 7 and and CC 40404 3270 8 some some DT 40404 3270 9 discharge discharge NN 40404 3270 10 on on IN 40404 3270 11 the the DT 40404 3270 12 sides side NNS 40404 3270 13 of of IN 40404 3270 14 the the DT 40404 3270 15 mountain mountain NN 40404 3270 16 , , , 40404 3270 17 building build VBG 40404 3270 18 parasitic parasitic JJ 40404 3270 19 cones cone NNS 40404 3270 20 , , , 40404 3270 21 while while IN 40404 3270 22 all all DT 40404 3270 23 form form NN 40404 3270 24 dikes dike NNS 40404 3270 25 , , , 40404 3270 26 which which WDT 40404 3270 27 strengthen strengthen VBP 40404 3270 28 the the DT 40404 3270 29 pile pile NN 40404 3270 30 with with IN 40404 3270 31 ribs rib NNS 40404 3270 32 of of IN 40404 3270 33 hard hard JJ 40404 3270 34 rock rock NN 40404 3270 35 and and CC 40404 3270 36 make make VB 40404 3270 37 it -PRON- PRP 40404 3270 38 more more RBR 40404 3270 39 difficult difficult JJ 40404 3270 40 to to TO 40404 3270 41 rend rend VB 40404 3270 42 . . . 40404 3271 1 Great great JJ 40404 3271 2 catastrophes catastrophe NNS 40404 3271 3 are be VBP 40404 3271 4 recorded record VBN 40404 3271 5 in in IN 40404 3271 6 the the DT 40404 3271 7 shape shape NN 40404 3271 8 of of IN 40404 3271 9 some some DT 40404 3271 10 volcanoes volcano NNS 40404 3271 11 which which WDT 40404 3271 12 consist consist VBP 40404 3271 13 of of IN 40404 3271 14 a a DT 40404 3271 15 circular circular JJ 40404 3271 16 rim rim NN 40404 3271 17 perhaps perhaps RB 40404 3271 18 miles mile VBZ 40404 3271 19 in in IN 40404 3271 20 diameter diameter NN 40404 3271 21 , , , 40404 3271 22 inclosing inclose VBG 40404 3271 23 a a DT 40404 3271 24 vast vast JJ 40404 3271 25 crater crater NN 40404 3271 26 or or CC 40404 3271 27 a a DT 40404 3271 28 caldera caldera NN 40404 3271 29 within within IN 40404 3271 30 which which WDT 40404 3271 31 small small JJ 40404 3271 32 cones cone NNS 40404 3271 33 may may MD 40404 3271 34 rise rise VB 40404 3271 35 . . . 40404 3272 1 We -PRON- PRP 40404 3272 2 may may MD 40404 3272 3 infer infer VB 40404 3272 4 that that IN 40404 3272 5 at at IN 40404 3272 6 some some DT 40404 3272 7 time time NN 40404 3272 8 the the DT 40404 3272 9 top top NN 40404 3272 10 of of IN 40404 3272 11 the the DT 40404 3272 12 mountain mountain NN 40404 3272 13 has have VBZ 40404 3272 14 been be VBN 40404 3272 15 blown blow VBN 40404 3272 16 off off RP 40404 3272 17 , , , 40404 3272 18 or or CC 40404 3272 19 has have VBZ 40404 3272 20 collapsed collapse VBN 40404 3272 21 and and CC 40404 3272 22 been be VBN 40404 3272 23 engulfed engulf VBN 40404 3272 24 because because IN 40404 3272 25 some some DT 40404 3272 26 reservoir reservoir NN 40404 3272 27 beneath beneath RB 40404 3272 28 had have VBD 40404 3272 29 been be VBN 40404 3272 30 emptied empty VBN 40404 3272 31 by by IN 40404 3272 32 long long RB 40404 3272 33 - - HYPH 40404 3272 34 continued continue VBN 40404 3272 35 eruptions eruption NNS 40404 3272 36 ( ( -LRB- 40404 3272 37 Fig fig NN 40404 3272 38 . . . 40404 3273 1 230 230 CD 40404 3273 2 ) ) -RRB- 40404 3273 3 . . . 40404 3274 1 The the DT 40404 3274 2 cone cone NN 40404 3274 3 - - HYPH 40404 3274 4 building building NN 40404 3274 5 stage stage NN 40404 3274 6 may may MD 40404 3274 7 be be VB 40404 3274 8 said say VBN 40404 3274 9 to to TO 40404 3274 10 continue continue VB 40404 3274 11 until until IN 40404 3274 12 eruptions eruption NNS 40404 3274 13 of of IN 40404 3274 14 lava lava NN 40404 3274 15 and and CC 40404 3274 16 fragmental fragmental JJ 40404 3274 17 materials material NNS 40404 3274 18 cease cease VBP 40404 3274 19 altogether altogether RB 40404 3274 20 . . . 40404 3275 1 Sooner soon RBR 40404 3275 2 or or CC 40404 3275 3 later later RBR 40404 3275 4 the the DT 40404 3275 5 volcanic volcanic JJ 40404 3275 6 forces force NNS 40404 3275 7 shift shift VBP 40404 3275 8 or or CC 40404 3275 9 die die VB 40404 3275 10 away away RP 40404 3275 11 , , , 40404 3275 12 and and CC 40404 3275 13 no no DT 40404 3275 14 further further JJ 40404 3275 15 eruptions eruption NNS 40404 3275 16 add add VB 40404 3275 17 to to IN 40404 3275 18 the the DT 40404 3275 19 pile pile NN 40404 3275 20 or or CC 40404 3275 21 replace replace VB 40404 3275 22 its -PRON- PRP$ 40404 3275 23 losses loss NNS 40404 3275 24 by by IN 40404 3275 25 erosion erosion NN 40404 3275 26 during during IN 40404 3275 27 periods period NNS 40404 3275 28 of of IN 40404 3275 29 repose repose NN 40404 3275 30 . . . 40404 3276 1 Gases gas NNS 40404 3276 2 however however RB 40404 3276 3 are be VBP 40404 3276 4 still still RB 40404 3276 5 emitted emit VBN 40404 3276 6 , , , 40404 3276 7 and and CC 40404 3276 8 , , , 40404 3276 9 as as IN 40404 3276 10 sulphur sulphur NN 40404 3276 11 vapors vapor NNS 40404 3276 12 are be VBP 40404 3276 13 conspicuous conspicuous JJ 40404 3276 14 among among IN 40404 3276 15 them -PRON- PRP 40404 3276 16 , , , 40404 3276 17 such such JJ 40404 3276 18 vents vent NNS 40404 3276 19 are be VBP 40404 3276 20 called call VBN 40404 3276 21 _ _ NNP 40404 3276 22 solfataras solfatara NNS 40404 3276 23 _ _ NNP 40404 3276 24 . . . 40404 3277 1 Mount Mount NNP 40404 3277 2 Hood Hood NNP 40404 3277 3 , , , 40404 3277 4 in in IN 40404 3277 5 Oregon Oregon NNP 40404 3277 6 , , , 40404 3277 7 is be VBZ 40404 3277 8 an an DT 40404 3277 9 example example NN 40404 3277 10 of of IN 40404 3277 11 a a DT 40404 3277 12 volcano volcano NN 40404 3277 13 sunk sink VBN 40404 3277 14 to to IN 40404 3277 15 this this DT 40404 3277 16 stage stage NN 40404 3277 17 . . . 40404 3278 1 From from IN 40404 3278 2 a a DT 40404 3278 3 steaming steam VBG 40404 3278 4 rift rift NN 40404 3278 5 on on IN 40404 3278 6 its -PRON- PRP$ 40404 3278 7 side side NN 40404 3278 8 there there RB 40404 3278 9 rise rise VBP 40404 3278 10 sulphurous sulphurous JJ 40404 3278 11 fumes fume NNS 40404 3278 12 which which WDT 40404 3278 13 , , , 40404 3278 14 half half PDT 40404 3278 15 a a DT 40404 3278 16 mile mile NN 40404 3278 17 down down IN 40404 3278 18 the the DT 40404 3278 19 wind wind NN 40404 3278 20 , , , 40404 3278 21 will will MD 40404 3278 22 tarnish tarnish VB 40404 3278 23 a a DT 40404 3278 24 silver silver JJ 40404 3278 25 coin coin NN 40404 3278 26 . . . 40404 3279 1 [ [ -LRB- 40404 3279 2 Illustration illustration NN 40404 3279 3 : : : 40404 3279 4 Fig Fig NNP 40404 3279 5 . . . 40404 3280 1 232 232 CD 40404 3280 2 . . . 40404 3281 1 Crater Crater NNP 40404 3281 2 Lake Lake NNP 40404 3281 3 , , , 40404 3281 4 Oregon Oregon NNP 40404 3281 5 How how WRB 40404 3281 6 wide wide JJ 40404 3281 7 and and CC 40404 3281 8 deep deep JJ 40404 3281 9 is be VBZ 40404 3281 10 the the DT 40404 3281 11 basin basin NN 40404 3281 12 which which WDT 40404 3281 13 holds hold VBZ 40404 3281 14 the the DT 40404 3281 15 lake lake NN 40404 3281 16 ? ? . 40404 3282 1 The the DT 40404 3282 2 mountain mountain NN 40404 3282 3 walls wall NNS 40404 3282 4 which which WDT 40404 3282 5 enclose enclose VBP 40404 3282 6 it -PRON- PRP 40404 3282 7 are be VBP 40404 3282 8 made make VBN 40404 3282 9 of of IN 40404 3282 10 outward outward RB 40404 3282 11 - - HYPH 40404 3282 12 dipping dip VBG 40404 3282 13 sheets sheet NNS 40404 3282 14 of of IN 40404 3282 15 lava lava NN 40404 3282 16 . . . 40404 3283 1 Draw draw VB 40404 3283 2 a a DT 40404 3283 3 diagram diagram NN 40404 3283 4 restoring restore VBG 40404 3283 5 the the DT 40404 3283 6 volcano volcano NN 40404 3283 7 of of IN 40404 3283 8 which which WDT 40404 3283 9 they -PRON- PRP 40404 3283 10 are be VBP 40404 3283 11 the the DT 40404 3283 12 remnant remnant JJ 40404 3283 13 . . . 40404 3284 1 No no DT 40404 3284 2 volcanic volcanic JJ 40404 3284 3 fragments fragment NNS 40404 3284 4 of of IN 40404 3284 5 the the DT 40404 3284 6 same same JJ 40404 3284 7 nature nature NN 40404 3284 8 as as IN 40404 3284 9 the the DT 40404 3284 10 materials material NNS 40404 3284 11 of of IN 40404 3284 12 which which WDT 40404 3284 13 the the DT 40404 3284 14 volcano volcano NN 40404 3284 15 is be VBZ 40404 3284 16 built build VBN 40404 3284 17 are be VBP 40404 3284 18 found find VBN 40404 3284 19 about about IN 40404 3284 20 the the DT 40404 3284 21 region region NN 40404 3284 22 . . . 40404 3285 1 What what WDT 40404 3285 2 theory theory NN 40404 3285 3 of of IN 40404 3285 4 the the DT 40404 3285 5 destruction destruction NN 40404 3285 6 of of IN 40404 3285 7 the the DT 40404 3285 8 cone cone NN 40404 3285 9 does do VBZ 40404 3285 10 this this DT 40404 3285 11 fact fact NN 40404 3285 12 favor favor VB 40404 3285 13 ? ? . 40404 3286 1 _ _ NNP 40404 3286 2 W W NNP 40404 3286 3 ´ ´ NNP 40404 3286 4 _ _ NNP 40404 3286 5 , , , 40404 3286 6 Wizard Wizard NNP 40404 3286 7 Island Island NNP 40404 3286 8 , , , 40404 3286 9 is be VBZ 40404 3286 10 a a DT 40404 3286 11 cinder cinder NN 40404 3286 12 cone cone NN 40404 3286 13 . . . 40404 3287 1 When when WRB 40404 3287 2 was be VBD 40404 3287 3 it -PRON- PRP 40404 3287 4 built build VBN 40404 3287 5 ? ? . 40404 3287 6 ] ] -RRB- 40404 3288 1 = = NFP 40404 3288 2 Geysers geyser NNS 40404 3288 3 and and CC 40404 3288 4 hot hot JJ 40404 3288 5 springs.= springs.= CD 40404 3288 6 The the DT 40404 3288 7 hot hot JJ 40404 3288 8 springs spring NNS 40404 3288 9 of of IN 40404 3288 10 volcanic volcanic JJ 40404 3288 11 regions region NNS 40404 3288 12 are be VBP 40404 3288 13 among among IN 40404 3288 14 the the DT 40404 3288 15 last last JJ 40404 3288 16 vestiges vestige NNS 40404 3288 17 of of IN 40404 3288 18 volcanic volcanic JJ 40404 3288 19 heat heat NN 40404 3288 20 . . . 40404 3289 1 Periodically periodically RB 40404 3289 2 eruptive eruptive JJ 40404 3289 3 boiling boiling NN 40404 3289 4 springs spring NNS 40404 3289 5 are be VBP 40404 3289 6 termed term VBN 40404 3289 7 geysers geyser NNS 40404 3289 8 . . . 40404 3290 1 In in IN 40404 3290 2 each each DT 40404 3290 3 of of IN 40404 3290 4 the the DT 40404 3290 5 geyser geyser NN 40404 3290 6 regions region NNS 40404 3290 7 of of IN 40404 3290 8 the the DT 40404 3290 9 earth earth NN 40404 3290 10 -- -- : 40404 3290 11 the the DT 40404 3290 12 Yellowstone Yellowstone NNP 40404 3290 13 National National NNP 40404 3290 14 Park Park NNP 40404 3290 15 , , , 40404 3290 16 Iceland Iceland NNP 40404 3290 17 , , , 40404 3290 18 and and CC 40404 3290 19 New New NNP 40404 3290 20 Zealand Zealand NNP 40404 3290 21 -- -- : 40404 3290 22 the the DT 40404 3290 23 ground ground NN 40404 3290 24 water water NN 40404 3290 25 of of IN 40404 3290 26 the the DT 40404 3290 27 locality locality NN 40404 3290 28 is be VBZ 40404 3290 29 supposed suppose VBN 40404 3290 30 to to TO 40404 3290 31 be be VB 40404 3290 32 heated heat VBN 40404 3290 33 by by IN 40404 3290 34 ancient ancient JJ 40404 3290 35 lavas lava NNS 40404 3290 36 that that WDT 40404 3290 37 , , , 40404 3290 38 because because IN 40404 3290 39 of of IN 40404 3290 40 the the DT 40404 3290 41 poor poor JJ 40404 3290 42 conductivity conductivity NN 40404 3290 43 of of IN 40404 3290 44 the the DT 40404 3290 45 rock rock NN 40404 3290 46 , , , 40404 3290 47 still still RB 40404 3290 48 remain remain VBP 40404 3290 49 hot hot JJ 40404 3290 50 beneath beneath IN 40404 3290 51 the the DT 40404 3290 52 surface surface NN 40404 3290 53 . . . 40404 3291 1 [ [ -LRB- 40404 3291 2 Illustration illustration NN 40404 3291 3 : : : 40404 3291 4 Fig Fig NNP 40404 3291 5 . . . 40404 3292 1 233 233 CD 40404 3292 2 . . . 40404 3293 1 Old old JJ 40404 3293 2 Faithful faithful JJ 40404 3293 3 Geyser Geyser NNP 40404 3293 4 in in IN 40404 3293 5 Eruption Eruption NNP 40404 3293 6 , , , 40404 3293 7 Yellowstone Yellowstone NNP 40404 3293 8 National National NNP 40404 3293 9 Park Park NNP 40404 3293 10 ] ] -RRB- 40404 3293 11 = = NFP 40404 3293 12 Old old JJ 40404 3293 13 Faithful= faithful= CD 40404 3293 14 , , , 40404 3293 15 one one CD 40404 3293 16 of of IN 40404 3293 17 the the DT 40404 3293 18 many many JJ 40404 3293 19 geysers geyser NNS 40404 3293 20 of of IN 40404 3293 21 the the DT 40404 3293 22 Yellowstone Yellowstone NNP 40404 3293 23 National National NNP 40404 3293 24 Park Park NNP 40404 3293 25 , , , 40404 3293 26 plays play VBZ 40404 3293 27 a a DT 40404 3293 28 fountain fountain NN 40404 3293 29 of of IN 40404 3293 30 boiling boil VBG 40404 3293 31 water water NN 40404 3293 32 a a DT 40404 3293 33 hundred hundred CD 40404 3293 34 feet foot NNS 40404 3293 35 in in IN 40404 3293 36 air air NN 40404 3293 37 ; ; : 40404 3293 38 while while IN 40404 3293 39 clouds cloud NNS 40404 3293 40 of of IN 40404 3293 41 vapor vapor NN 40404 3293 42 from from IN 40404 3293 43 the the DT 40404 3293 44 escaping escape VBG 40404 3293 45 steam steam NN 40404 3293 46 ascend ascend NN 40404 3293 47 to to IN 40404 3293 48 several several JJ 40404 3293 49 times time NNS 40404 3293 50 that that DT 40404 3293 51 height height NN 40404 3293 52 . . . 40404 3294 1 The the DT 40404 3294 2 eruptions eruption NNS 40404 3294 3 take take VBP 40404 3294 4 place place NN 40404 3294 5 at at IN 40404 3294 6 intervals interval NNS 40404 3294 7 of of IN 40404 3294 8 from from IN 40404 3294 9 seventy seventy CD 40404 3294 10 to to IN 40404 3294 11 ninety ninety CD 40404 3294 12 minutes minute NNS 40404 3294 13 . . . 40404 3295 1 In in IN 40404 3295 2 repose repose JJ 40404 3295 3 the the DT 40404 3295 4 geyser geyser NN 40404 3295 5 is be VBZ 40404 3295 6 a a DT 40404 3295 7 quiet quiet JJ 40404 3295 8 pool pool NN 40404 3295 9 , , , 40404 3295 10 occupying occupy VBG 40404 3295 11 a a DT 40404 3295 12 craterlike craterlike JJ 40404 3295 13 depression depression NN 40404 3295 14 in in IN 40404 3295 15 a a DT 40404 3295 16 conical conical JJ 40404 3295 17 mound mound NN 40404 3295 18 some some DT 40404 3295 19 twelve twelve CD 40404 3295 20 feet foot NNS 40404 3295 21 high high JJ 40404 3295 22 . . . 40404 3296 1 The the DT 40404 3296 2 conduit conduit NN 40404 3296 3 of of IN 40404 3296 4 the the DT 40404 3296 5 spring spring NN 40404 3296 6 is be VBZ 40404 3296 7 too too RB 40404 3296 8 irregular irregular JJ 40404 3296 9 to to TO 40404 3296 10 be be VB 40404 3296 11 sounded sound VBN 40404 3296 12 . . . 40404 3297 1 The the DT 40404 3297 2 mound mound NN 40404 3297 3 is be VBZ 40404 3297 4 composed compose VBN 40404 3297 5 of of IN 40404 3297 6 porous porous JJ 40404 3297 7 silica silica NN 40404 3297 8 deposited deposit VBN 40404 3297 9 by by IN 40404 3297 10 the the DT 40404 3297 11 waters water NNS 40404 3297 12 of of IN 40404 3297 13 the the DT 40404 3297 14 geyser geyser NN 40404 3297 15 . . . 40404 3298 1 Geysers geyser NNS 40404 3298 2 erupt erupt VBP 40404 3298 3 at at IN 40404 3298 4 intervals interval NNS 40404 3298 5 instead instead RB 40404 3298 6 of of IN 40404 3298 7 continuously continuously RB 40404 3298 8 boiling boil VBG 40404 3298 9 , , , 40404 3298 10 because because IN 40404 3298 11 their -PRON- PRP$ 40404 3298 12 long long JJ 40404 3298 13 , , , 40404 3298 14 narrow narrow JJ 40404 3298 15 , , , 40404 3298 16 and and CC 40404 3298 17 often often RB 40404 3298 18 tortuous tortuous JJ 40404 3298 19 conduits conduit NNS 40404 3298 20 do do VBP 40404 3298 21 not not RB 40404 3298 22 permit permit VB 40404 3298 23 a a DT 40404 3298 24 free free JJ 40404 3298 25 circulation circulation NN 40404 3298 26 of of IN 40404 3298 27 the the DT 40404 3298 28 water water NN 40404 3298 29 . . . 40404 3299 1 After after IN 40404 3299 2 an an DT 40404 3299 3 eruption eruption NN 40404 3299 4 the the DT 40404 3299 5 tube tube NN 40404 3299 6 is be VBZ 40404 3299 7 refilled refill VBN 40404 3299 8 and and CC 40404 3299 9 the the DT 40404 3299 10 water water NN 40404 3299 11 again again RB 40404 3299 12 gradually gradually RB 40404 3299 13 becomes become VBZ 40404 3299 14 heated heated JJ 40404 3299 15 . . . 40404 3300 1 Deep deep RB 40404 3300 2 in in IN 40404 3300 3 the the DT 40404 3300 4 tube tube NN 40404 3300 5 where where WRB 40404 3300 6 it -PRON- PRP 40404 3300 7 is be VBZ 40404 3300 8 in in IN 40404 3300 9 contact contact NN 40404 3300 10 with with IN 40404 3300 11 hot hot JJ 40404 3300 12 lavas lavas NN 40404 3300 13 the the DT 40404 3300 14 water water NN 40404 3300 15 sooner soon RBR 40404 3300 16 or or CC 40404 3300 17 later later RBR 40404 3300 18 reaches reach VBZ 40404 3300 19 the the DT 40404 3300 20 boiling boiling NN 40404 3300 21 point point NN 40404 3300 22 , , , 40404 3300 23 and and CC 40404 3300 24 bursting burst VBG 40404 3300 25 into into IN 40404 3300 26 steam steam NN 40404 3300 27 shoots shoot NNS 40404 3300 28 the the DT 40404 3300 29 water water NN 40404 3300 30 above above IN 40404 3300 31 it -PRON- PRP 40404 3300 32 high high RB 40404 3300 33 in in IN 40404 3300 34 air air NN 40404 3300 35 . . . 40404 3301 1 [ [ -LRB- 40404 3301 2 Illustration illustration NN 40404 3301 3 : : : 40404 3301 4 Fig Fig NNP 40404 3301 5 . . . 40404 3302 1 234 234 CD 40404 3302 2 . . . 40404 3303 1 Terrace Terrace NNP 40404 3303 2 and and CC 40404 3303 3 Cones Cones NNPS 40404 3303 4 of of IN 40404 3303 5 Siliceous siliceous JJ 40404 3303 6 Sinter Sinter NNP 40404 3303 7 deposited deposit VBN 40404 3303 8 by by IN 40404 3303 9 Geysers Geysers NNP 40404 3303 10 , , , 40404 3303 11 Yellowstone Yellowstone NNP 40404 3303 12 National National NNP 40404 3303 13 Park Park NNP 40404 3303 14 ] ] -RRB- 40404 3303 15 = = FW 40404 3303 16 Carbonated carbonate VBN 40404 3303 17 springs.= springs.= CD 40404 3303 18 After after IN 40404 3303 19 all all PDT 40404 3303 20 the the DT 40404 3303 21 other other JJ 40404 3303 22 signs sign NNS 40404 3303 23 of of IN 40404 3303 24 life life NN 40404 3303 25 have have VBP 40404 3303 26 gone go VBN 40404 3303 27 , , , 40404 3303 28 the the DT 40404 3303 29 ancient ancient JJ 40404 3303 30 volcano volcano NN 40404 3303 31 may may MD 40404 3303 32 emit emit VB 40404 3303 33 carbon carbon NN 40404 3303 34 dioxide dioxide NN 40404 3303 35 as as IN 40404 3303 36 its -PRON- PRP$ 40404 3303 37 dying die VBG 40404 3303 38 breath breath NN 40404 3303 39 . . . 40404 3304 1 The the DT 40404 3304 2 springs spring NNS 40404 3304 3 of of IN 40404 3304 4 the the DT 40404 3304 5 region region NN 40404 3304 6 may may MD 40404 3304 7 long long RB 40404 3304 8 be be VB 40404 3304 9 charged charge VBN 40404 3304 10 with with IN 40404 3304 11 carbon carbon NN 40404 3304 12 dioxide dioxide NN 40404 3304 13 , , , 40404 3304 14 or or CC 40404 3304 15 carbonated carbonate VBN 40404 3304 16 , , , 40404 3304 17 and and CC 40404 3304 18 where where WRB 40404 3304 19 they -PRON- PRP 40404 3304 20 rise rise VBP 40404 3304 21 through through IN 40404 3304 22 limestone limestone NN 40404 3304 23 may may MD 40404 3304 24 be be VB 40404 3304 25 expected expect VBN 40404 3304 26 to to TO 40404 3304 27 deposit deposit VB 40404 3304 28 large large JJ 40404 3304 29 quantities quantity NNS 40404 3304 30 of of IN 40404 3304 31 travertine travertine NN 40404 3304 32 . . . 40404 3305 1 We -PRON- PRP 40404 3305 2 should should MD 40404 3305 3 remember remember VB 40404 3305 4 , , , 40404 3305 5 however however RB 40404 3305 6 , , , 40404 3305 7 that that IN 40404 3305 8 many many JJ 40404 3305 9 carbonated carbonate VBN 40404 3305 10 springs spring NNS 40404 3305 11 , , , 40404 3305 12 and and CC 40404 3305 13 many many JJ 40404 3305 14 hot hot JJ 40404 3305 15 springs spring NNS 40404 3305 16 , , , 40404 3305 17 are be VBP 40404 3305 18 wholly wholly RB 40404 3305 19 independent independent JJ 40404 3305 20 of of IN 40404 3305 21 volcanoes volcano NNS 40404 3305 22 . . . 40404 3306 1 [ [ -LRB- 40404 3306 2 Illustration illustration NN 40404 3306 3 : : : 40404 3306 4 Fig Fig NNP 40404 3306 5 . . . 40404 3307 1 235 235 CD 40404 3307 2 . . . 40404 3308 1 Mount Mount NNP 40404 3308 2 Shasta Shasta NNP 40404 3308 3 , , , 40404 3308 4 California California NNP 40404 3308 5 ] ] -RRB- 40404 3308 6 [ [ -LRB- 40404 3308 7 Illustration illustration NN 40404 3308 8 : : : 40404 3308 9 Fig Fig NNP 40404 3308 10 . . . 40404 3309 1 236 236 CD 40404 3309 2 . . . 40404 3310 1 Mount Mount NNP 40404 3310 2 Hood Hood NNP 40404 3310 3 , , , 40404 3310 4 Oregon Oregon NNP 40404 3310 5 ] ] -RRB- 40404 3310 6 = = NFP 40404 3310 7 The the DT 40404 3310 8 destruction destruction NN 40404 3310 9 of of IN 40404 3310 10 the the DT 40404 3310 11 cone.= cone.= NNP 40404 3310 12 As as RB 40404 3310 13 soon soon RB 40404 3310 14 as as IN 40404 3310 15 the the DT 40404 3310 16 volcanic volcanic JJ 40404 3310 17 cone cone NN 40404 3310 18 ceases cease VBZ 40404 3310 19 to to TO 40404 3310 20 grow grow VB 40404 3310 21 by by IN 40404 3310 22 eruptions eruption NNS 40404 3310 23 the the DT 40404 3310 24 agents agent NNS 40404 3310 25 of of IN 40404 3310 26 erosion erosion NN 40404 3310 27 begin begin VBP 40404 3310 28 to to TO 40404 3310 29 wear wear VB 40404 3310 30 it -PRON- PRP 40404 3310 31 down down RP 40404 3310 32 , , , 40404 3310 33 and and CC 40404 3310 34 the the DT 40404 3310 35 length length NN 40404 3310 36 of of IN 40404 3310 37 time time NN 40404 3310 38 that that WDT 40404 3310 39 has have VBZ 40404 3310 40 elapsed elapse VBN 40404 3310 41 since since IN 40404 3310 42 the the DT 40404 3310 43 period period NN 40404 3310 44 of of IN 40404 3310 45 active active JJ 40404 3310 46 growth growth NN 40404 3310 47 may may MD 40404 3310 48 be be VB 40404 3310 49 roughly roughly RB 40404 3310 50 measured measure VBN 40404 3310 51 by by IN 40404 3310 52 the the DT 40404 3310 53 degree degree NN 40404 3310 54 to to TO 40404 3310 55 which which WDT 40404 3310 56 the the DT 40404 3310 57 cone cone NN 40404 3310 58 has have VBZ 40404 3310 59 been be VBN 40404 3310 60 dissected dissect VBN 40404 3310 61 . . . 40404 3311 1 We -PRON- PRP 40404 3311 2 infer infer VBP 40404 3311 3 that that IN 40404 3311 4 Mount Mount NNP 40404 3311 5 Shasta Shasta NNP 40404 3311 6 , , , 40404 3311 7 whose whose WP$ 40404 3311 8 conical conical JJ 40404 3311 9 shape shape NN 40404 3311 10 is be VBZ 40404 3311 11 still still RB 40404 3311 12 preserved preserve VBN 40404 3311 13 despite despite IN 40404 3311 14 the the DT 40404 3311 15 gullies gully NNS 40404 3311 16 one one CD 40404 3311 17 thousand thousand CD 40404 3311 18 feet foot NNS 40404 3311 19 deep deep JJ 40404 3311 20 which which WDT 40404 3311 21 trench trench VBP 40404 3311 22 its -PRON- PRP$ 40404 3311 23 sides side NNS 40404 3311 24 ( ( -LRB- 40404 3311 25 Fig fig NN 40404 3311 26 . . . 40404 3312 1 235 235 LS 40404 3312 2 ) ) -RRB- 40404 3312 3 , , , 40404 3312 4 is be VBZ 40404 3312 5 younger young JJR 40404 3312 6 than than IN 40404 3312 7 Mount Mount NNP 40404 3312 8 Hood Hood NNP 40404 3312 9 , , , 40404 3312 10 which which WDT 40404 3312 11 erosive erosive JJ 40404 3312 12 agencies agency NNS 40404 3312 13 have have VBP 40404 3312 14 carved carve VBN 40404 3312 15 to to IN 40404 3312 16 a a DT 40404 3312 17 pyramidal pyramidal JJ 40404 3312 18 form form NN 40404 3312 19 ( ( -LRB- 40404 3312 20 Fig fig NN 40404 3312 21 . . . 40404 3313 1 236 236 CD 40404 3313 2 ) ) -RRB- 40404 3313 3 . . . 40404 3314 1 The the DT 40404 3314 2 pile pile NN 40404 3314 3 of of IN 40404 3314 4 materials material NNS 40404 3314 5 accumulated accumulate VBN 40404 3314 6 about about IN 40404 3314 7 a a DT 40404 3314 8 volcanic volcanic JJ 40404 3314 9 vent vent NN 40404 3314 10 , , , 40404 3314 11 no no RB 40404 3314 12 matter matter RB 40404 3314 13 how how WRB 40404 3314 14 vast vast JJ 40404 3314 15 in in IN 40404 3314 16 bulk bulk NN 40404 3314 17 , , , 40404 3314 18 is be VBZ 40404 3314 19 at at IN 40404 3314 20 last last JJ 40404 3314 21 swept sweep VBN 40404 3314 22 entirely entirely RB 40404 3314 23 away away RB 40404 3314 24 . . . 40404 3315 1 The the DT 40404 3315 2 cone cone NN 40404 3315 3 of of IN 40404 3315 4 the the DT 40404 3315 5 volcano volcano NN 40404 3315 6 , , , 40404 3315 7 active active JJ 40404 3315 8 or or CC 40404 3315 9 extinct extinct JJ 40404 3315 10 , , , 40404 3315 11 is be VBZ 40404 3315 12 not not RB 40404 3315 13 old old JJ 40404 3315 14 as as IN 40404 3315 15 the the DT 40404 3315 16 earth earth NN 40404 3315 17 counts count VBZ 40404 3315 18 time time NN 40404 3315 19 ; ; : 40404 3315 20 volcanoes volcano NNS 40404 3315 21 are be VBP 40404 3315 22 short short RB 40404 3315 23 - - HYPH 40404 3315 24 lived live VBN 40404 3315 25 geological geological JJ 40404 3315 26 phenomena phenomenon NNS 40404 3315 27 . . . 40404 3316 1 [ [ -LRB- 40404 3316 2 Illustration illustration NN 40404 3316 3 : : : 40404 3316 4 Fig Fig NNP 40404 3316 5 . . . 40404 3317 1 237 237 CD 40404 3317 2 . . . 40404 3318 1 Crandall Crandall NNP 40404 3318 2 Volcano Volcano NNP 40404 3318 3 ] ] -RRB- 40404 3318 4 = = NFP 40404 3318 5 Crandall crandall NN 40404 3318 6 volcano.= volcano.= NNS 40404 3318 7 This this DT 40404 3318 8 name name NN 40404 3318 9 is be VBZ 40404 3318 10 given give VBN 40404 3318 11 to to IN 40404 3318 12 a a DT 40404 3318 13 dissected dissect VBN 40404 3318 14 ancient ancient JJ 40404 3318 15 volcano volcano NN 40404 3318 16 in in IN 40404 3318 17 the the DT 40404 3318 18 Yellowstone Yellowstone NNP 40404 3318 19 National National NNP 40404 3318 20 Park Park NNP 40404 3318 21 , , , 40404 3318 22 which which WDT 40404 3318 23 once once RB 40404 3318 24 , , , 40404 3318 25 it -PRON- PRP 40404 3318 26 is be VBZ 40404 3318 27 estimated estimate VBN 40404 3318 28 , , , 40404 3318 29 reared rear VBD 40404 3318 30 its -PRON- PRP$ 40404 3318 31 head head NN 40404 3318 32 thousands thousand NNS 40404 3318 33 of of IN 40404 3318 34 feet foot NNS 40404 3318 35 above above IN 40404 3318 36 the the DT 40404 3318 37 surrounding surround VBG 40404 3318 38 country country NN 40404 3318 39 and and CC 40404 3318 40 greatly greatly RB 40404 3318 41 exceeded exceed VBD 40404 3318 42 in in IN 40404 3318 43 bulk bulk NN 40404 3318 44 either either CC 40404 3318 45 Mount Mount NNP 40404 3318 46 Shasta Shasta NNP 40404 3318 47 or or CC 40404 3318 48 Mount Mount NNP 40404 3318 49 Etna Etna NNP 40404 3318 50 . . . 40404 3319 1 Not not RB 40404 3319 2 a a DT 40404 3319 3 line line NN 40404 3319 4 of of IN 40404 3319 5 the the DT 40404 3319 6 original original JJ 40404 3319 7 mountain mountain NN 40404 3319 8 remains remain VBZ 40404 3319 9 ; ; : 40404 3319 10 all all DT 40404 3319 11 has have VBZ 40404 3319 12 been be VBN 40404 3319 13 swept sweep VBN 40404 3319 14 away away RB 40404 3319 15 by by IN 40404 3319 16 erosion erosion NN 40404 3319 17 except except IN 40404 3319 18 some some DT 40404 3319 19 four four CD 40404 3319 20 thousand thousand CD 40404 3319 21 feet foot NNS 40404 3319 22 of of IN 40404 3319 23 the the DT 40404 3319 24 base base NN 40404 3319 25 of of IN 40404 3319 26 the the DT 40404 3319 27 pile pile NN 40404 3319 28 . . . 40404 3320 1 This this DT 40404 3320 2 basal basal NN 40404 3320 3 wreck wreck NN 40404 3320 4 now now RB 40404 3320 5 appears appear VBZ 40404 3320 6 as as IN 40404 3320 7 a a DT 40404 3320 8 rugged rugged JJ 40404 3320 9 region region NN 40404 3320 10 about about IN 40404 3320 11 thirty thirty CD 40404 3320 12 miles mile NNS 40404 3320 13 in in IN 40404 3320 14 diameter diameter NN 40404 3320 15 , , , 40404 3320 16 trenched trench VBN 40404 3320 17 by by IN 40404 3320 18 deep deep JJ 40404 3320 19 valleys valley NNS 40404 3320 20 and and CC 40404 3320 21 cut cut VBD 40404 3320 22 into into IN 40404 3320 23 sharp sharp JJ 40404 3320 24 peaks peak NNS 40404 3320 25 and and CC 40404 3320 26 precipitous precipitous JJ 40404 3320 27 ridges ridge NNS 40404 3320 28 . . . 40404 3321 1 In in IN 40404 3321 2 the the DT 40404 3321 3 center center NN 40404 3321 4 of of IN 40404 3321 5 the the DT 40404 3321 6 area area NN 40404 3321 7 is be VBZ 40404 3321 8 found find VBN 40404 3321 9 the the DT 40404 3321 10 nucleus nucleus NN 40404 3321 11 ( ( -LRB- 40404 3321 12 _ _ NNP 40404 3321 13 N N NNP 40404 3321 14 _ _ NNP 40404 3321 15 , , , 40404 3321 16 Fig Fig NNP 40404 3321 17 . . . 40404 3322 1 237),--a 237),--a NNP 40404 3322 2 mass mass NN 40404 3322 3 of of IN 40404 3322 4 coarsely coarsely RB 40404 3322 5 crystalline crystalline JJ 40404 3322 6 rock rock NN 40404 3322 7 that that WDT 40404 3322 8 congealed congeal VBD 40404 3322 9 deep deep RB 40404 3322 10 in in IN 40404 3322 11 the the DT 40404 3322 12 old old JJ 40404 3322 13 volcanic volcanic JJ 40404 3322 14 pipe pipe NN 40404 3322 15 . . . 40404 3323 1 From from IN 40404 3323 2 it -PRON- PRP 40404 3323 3 there there RB 40404 3323 4 radiate radiate VBP 40404 3323 5 in in IN 40404 3323 6 all all DT 40404 3323 7 directions direction NNS 40404 3323 8 , , , 40404 3323 9 like like IN 40404 3323 10 the the DT 40404 3323 11 spokes spoke NNS 40404 3323 12 of of IN 40404 3323 13 a a DT 40404 3323 14 wheel wheel NN 40404 3323 15 , , , 40404 3323 16 long long JJ 40404 3323 17 dikes dike NNS 40404 3323 18 whose whose WP$ 40404 3323 19 rock rock NN 40404 3323 20 grows grow VBZ 40404 3323 21 rapidly rapidly RB 40404 3323 22 finer fine JJR 40404 3323 23 of of IN 40404 3323 24 grain grain NN 40404 3323 25 as as IN 40404 3323 26 it -PRON- PRP 40404 3323 27 leaves leave VBZ 40404 3323 28 the the DT 40404 3323 29 vicinity vicinity NN 40404 3323 30 of of IN 40404 3323 31 the the DT 40404 3323 32 once once RB 40404 3323 33 heated heated JJ 40404 3323 34 core core NN 40404 3323 35 . . . 40404 3324 1 The the DT 40404 3324 2 remainder remainder NN 40404 3324 3 of of IN 40404 3324 4 the the DT 40404 3324 5 base base NN 40404 3324 6 of of IN 40404 3324 7 the the DT 40404 3324 8 ancient ancient JJ 40404 3324 9 mountain mountain NN 40404 3324 10 is be VBZ 40404 3324 11 made make VBN 40404 3324 12 of of IN 40404 3324 13 rudely rudely RB 40404 3324 14 bedded bed VBN 40404 3324 15 tuffs tuff NNS 40404 3324 16 and and CC 40404 3324 17 volcanic volcanic NNP 40404 3324 18 breccia breccia NNP 40404 3324 19 , , , 40404 3324 20 with with IN 40404 3324 21 occasional occasional JJ 40404 3324 22 flows flow NNS 40404 3324 23 of of IN 40404 3324 24 lava lava NN 40404 3324 25 , , , 40404 3324 26 some some DT 40404 3324 27 of of IN 40404 3324 28 the the DT 40404 3324 29 fragments fragment NNS 40404 3324 30 of of IN 40404 3324 31 the the DT 40404 3324 32 breccia breccia NNP 40404 3324 33 measuring measuring NN 40404 3324 34 as as RB 40404 3324 35 much much JJ 40404 3324 36 as as IN 40404 3324 37 twenty twenty CD 40404 3324 38 feet foot NNS 40404 3324 39 in in IN 40404 3324 40 diameter diameter NN 40404 3324 41 . . . 40404 3325 1 On on IN 40404 3325 2 the the DT 40404 3325 3 sides side NNS 40404 3325 4 of of IN 40404 3325 5 canyons canyon NNS 40404 3325 6 the the DT 40404 3325 7 breccia breccia NNP 40404 3325 8 is be VBZ 40404 3325 9 carved carve VBN 40404 3325 10 by by IN 40404 3325 11 rain rain NN 40404 3325 12 erosion erosion NN 40404 3325 13 to to IN 40404 3325 14 fantastic fantastic JJ 40404 3325 15 pinnacles pinnacle NNS 40404 3325 16 . . . 40404 3326 1 At at IN 40404 3326 2 different different JJ 40404 3326 3 levels level NNS 40404 3326 4 in in IN 40404 3326 5 the the DT 40404 3326 6 midst midst NN 40404 3326 7 of of IN 40404 3326 8 these these DT 40404 3326 9 beds bed NNS 40404 3326 10 of of IN 40404 3326 11 tuff tuff NNP 40404 3326 12 and and CC 40404 3326 13 lava lava NNP 40404 3326 14 are be VBP 40404 3326 15 many many JJ 40404 3326 16 old old JJ 40404 3326 17 forest forest NN 40404 3326 18 grounds ground NNS 40404 3326 19 . . . 40404 3327 1 The the DT 40404 3327 2 stumps stump NNS 40404 3327 3 and and CC 40404 3327 4 trunks trunk NNS 40404 3327 5 of of IN 40404 3327 6 the the DT 40404 3327 7 trees tree NNS 40404 3327 8 , , , 40404 3327 9 now now RB 40404 3327 10 turned turn VBN 40404 3327 11 to to IN 40404 3327 12 stone stone NN 40404 3327 13 , , , 40404 3327 14 still still RB 40404 3327 15 in in IN 40404 3327 16 many many JJ 40404 3327 17 cases case NNS 40404 3327 18 stand stand VBP 40404 3327 19 upright upright JJ 40404 3327 20 where where WRB 40404 3327 21 once once IN 40404 3327 22 they -PRON- PRP 40404 3327 23 grew grow VBD 40404 3327 24 on on IN 40404 3327 25 the the DT 40404 3327 26 slopes slope NNS 40404 3327 27 of of IN 40404 3327 28 the the DT 40404 3327 29 mountain mountain NN 40404 3327 30 as as IN 40404 3327 31 it -PRON- PRP 40404 3327 32 was be VBD 40404 3327 33 building build VBG 40404 3327 34 ( ( -LRB- 40404 3327 35 Fig fig NN 40404 3327 36 . . . 40404 3328 1 238 238 CD 40404 3328 2 ) ) -RRB- 40404 3328 3 . . . 40404 3329 1 The the DT 40404 3329 2 great great JJ 40404 3329 3 size size NN 40404 3329 4 and and CC 40404 3329 5 age age NN 40404 3329 6 of of IN 40404 3329 7 some some DT 40404 3329 8 of of IN 40404 3329 9 these these DT 40404 3329 10 trees tree NNS 40404 3329 11 indicate indicate VBP 40404 3329 12 , , , 40404 3329 13 the the DT 40404 3329 14 lapse lapse NN 40404 3329 15 of of IN 40404 3329 16 time time NN 40404 3329 17 between between IN 40404 3329 18 the the DT 40404 3329 19 eruption eruption NN 40404 3329 20 whose whose WP$ 40404 3329 21 lavas lavas NN 40404 3329 22 or or CC 40404 3329 23 tuffs tuff NNS 40404 3329 24 weathered weather VBD 40404 3329 25 to to IN 40404 3329 26 the the DT 40404 3329 27 soil soil NN 40404 3329 28 on on IN 40404 3329 29 which which WDT 40404 3329 30 they -PRON- PRP 40404 3329 31 grew grow VBD 40404 3329 32 and and CC 40404 3329 33 the the DT 40404 3329 34 subsequent subsequent JJ 40404 3329 35 eruption eruption NN 40404 3329 36 which which WDT 40404 3329 37 buried bury VBD 40404 3329 38 them -PRON- PRP 40404 3329 39 beneath beneath IN 40404 3329 40 showers shower NNS 40404 3329 41 of of IN 40404 3329 42 stones stone NNS 40404 3329 43 and and CC 40404 3329 44 ashes ashe NNS 40404 3329 45 . . . 40404 3330 1 Near near IN 40404 3330 2 the the DT 40404 3330 3 edge edge NN 40404 3330 4 of of IN 40404 3330 5 the the DT 40404 3330 6 area area NN 40404 3330 7 lies lie VBZ 40404 3330 8 Death Death NNP 40404 3330 9 Gulch Gulch NNP 40404 3330 10 , , , 40404 3330 11 in in IN 40404 3330 12 which which WDT 40404 3330 13 carbon carbon NN 40404 3330 14 dioxide dioxide NN 40404 3330 15 is be VBZ 40404 3330 16 given give VBN 40404 3330 17 off off RP 40404 3330 18 in in IN 40404 3330 19 such such JJ 40404 3330 20 quantities quantity NNS 40404 3330 21 that that IN 40404 3330 22 in in IN 40404 3330 23 quiet quiet JJ 40404 3330 24 weather weather NN 40404 3330 25 it -PRON- PRP 40404 3330 26 accumulates accumulate VBZ 40404 3330 27 in in IN 40404 3330 28 a a DT 40404 3330 29 heavy heavy JJ 40404 3330 30 layer layer NN 40404 3330 31 along along IN 40404 3330 32 the the DT 40404 3330 33 ground ground NN 40404 3330 34 and and CC 40404 3330 35 suffocates suffocate VBZ 40404 3330 36 the the DT 40404 3330 37 animals animal NNS 40404 3330 38 which which WDT 40404 3330 39 may may MD 40404 3330 40 enter enter VB 40404 3330 41 it -PRON- PRP 40404 3330 42 . . . 40404 3331 1 [ [ -LRB- 40404 3331 2 Illustration illustration NN 40404 3331 3 : : : 40404 3331 4 Fig Fig NNP 40404 3331 5 . . . 40404 3332 1 238 238 CD 40404 3332 2 . . . 40404 3333 1 Fossil Fossil NNP 40404 3333 2 Tree Tree NNP 40404 3333 3 Trunks Trunks NNP 40404 3333 4 , , , 40404 3333 5 Yellowstone Yellowstone NNP 40404 3333 6 National National NNP 40404 3333 7 Park Park NNP 40404 3333 8 ] ] -RRB- 40404 3333 9 CHAPTER CHAPTER NNP 40404 3333 10 XII XII NNP 40404 3333 11 UNDERGROUND UNDERGROUND VBN 40404 3333 12 STRUCTURES structures NN 40404 3333 13 OF of IN 40404 3333 14 IGNEOUS igneous JJ 40404 3333 15 ORIGIN ORIGIN NNP 40404 3333 16 It -PRON- PRP 40404 3333 17 is be VBZ 40404 3333 18 because because IN 40404 3333 19 long long RB 40404 3333 20 - - HYPH 40404 3333 21 continued continue VBN 40404 3333 22 erosion erosion NN 40404 3333 23 lays lay VBZ 40404 3333 24 bare bare VBP 40404 3333 25 the the DT 40404 3333 26 innermost innermost JJS 40404 3333 27 anatomy anatomy NN 40404 3333 28 of of IN 40404 3333 29 an an DT 40404 3333 30 extinct extinct JJ 40404 3333 31 volcano volcano NN 40404 3333 32 , , , 40404 3333 33 and and CC 40404 3333 34 even even RB 40404 3333 35 sweeps sweep VBZ 40404 3333 36 away away RB 40404 3333 37 the the DT 40404 3333 38 entire entire JJ 40404 3333 39 pile pile NN 40404 3333 40 with with IN 40404 3333 41 much much JJ 40404 3333 42 of of IN 40404 3333 43 the the DT 40404 3333 44 underlying underlie VBG 40404 3333 45 strata strata NN 40404 3333 46 , , , 40404 3333 47 thus thus RB 40404 3333 48 leaving leave VBG 40404 3333 49 the the DT 40404 3333 50 very very JJ 40404 3333 51 roots root NNS 40404 3333 52 of of IN 40404 3333 53 the the DT 40404 3333 54 volcano volcano NN 40404 3333 55 open open JJ 40404 3333 56 to to IN 40404 3333 57 view view VB 40404 3333 58 , , , 40404 3333 59 that that IN 40404 3333 60 we -PRON- PRP 40404 3333 61 are be VBP 40404 3333 62 able able JJ 40404 3333 63 to to TO 40404 3333 64 study study VB 40404 3333 65 underground underground JJ 40404 3333 66 volcanic volcanic JJ 40404 3333 67 structures structure NNS 40404 3333 68 . . . 40404 3334 1 With with IN 40404 3334 2 these these DT 40404 3334 3 we -PRON- PRP 40404 3334 4 include include VBP 40404 3334 5 , , , 40404 3334 6 for for IN 40404 3334 7 convenience convenience NN 40404 3334 8 , , , 40404 3334 9 intrusions intrusion NNS 40404 3334 10 of of IN 40404 3334 11 molten molten JJ 40404 3334 12 rock rock NN 40404 3334 13 which which WDT 40404 3334 14 have have VBP 40404 3334 15 been be VBN 40404 3334 16 driven drive VBN 40404 3334 17 upward upward RB 40404 3334 18 into into IN 40404 3334 19 the the DT 40404 3334 20 crust crust NN 40404 3334 21 , , , 40404 3334 22 but but CC 40404 3334 23 which which WDT 40404 3334 24 may may MD 40404 3334 25 not not RB 40404 3334 26 have have VB 40404 3334 27 succeeded succeed VBN 40404 3334 28 in in IN 40404 3334 29 breaking break VBG 40404 3334 30 way way NN 40404 3334 31 to to IN 40404 3334 32 the the DT 40404 3334 33 surface surface NN 40404 3334 34 and and CC 40404 3334 35 establishing establish VBG 40404 3334 36 a a DT 40404 3334 37 volcano volcano NN 40404 3334 38 . . . 40404 3335 1 All all PDT 40404 3335 2 these these DT 40404 3335 3 structures structure NNS 40404 3335 4 are be VBP 40404 3335 5 built build VBN 40404 3335 6 of of IN 40404 3335 7 rock rock NN 40404 3335 8 forced force VBN 40404 3335 9 when when WRB 40404 3335 10 in in IN 40404 3335 11 a a DT 40404 3335 12 fluid fluid JJ 40404 3335 13 or or CC 40404 3335 14 pasty pasty NN 40404 3335 15 state state NN 40404 3335 16 into into IN 40404 3335 17 some some DT 40404 3335 18 cavity cavity NN 40404 3335 19 which which WDT 40404 3335 20 it -PRON- PRP 40404 3335 21 has have VBZ 40404 3335 22 found find VBN 40404 3335 23 or or CC 40404 3335 24 made make VBN 40404 3335 25 , , , 40404 3335 26 and and CC 40404 3335 27 we -PRON- PRP 40404 3335 28 may may MD 40404 3335 29 classify classify VB 40404 3335 30 them -PRON- PRP 40404 3335 31 therefore therefore RB 40404 3335 32 , , , 40404 3335 33 according accord VBG 40404 3335 34 to to IN 40404 3335 35 the the DT 40404 3335 36 shape shape NN 40404 3335 37 of of IN 40404 3335 38 the the DT 40404 3335 39 molds mold NNS 40404 3335 40 in in IN 40404 3335 41 which which WDT 40404 3335 42 the the DT 40404 3335 43 molten molten JJ 40404 3335 44 rock rock NN 40404 3335 45 has have VBZ 40404 3335 46 congealed congeal VBN 40404 3335 47 , , , 40404 3335 48 as as IN 40404 3335 49 ( ( -LRB- 40404 3335 50 1 1 CD 40404 3335 51 ) ) -RRB- 40404 3335 52 dikes dike NNS 40404 3335 53 , , , 40404 3335 54 ( ( -LRB- 40404 3335 55 2 2 LS 40404 3335 56 ) ) -RRB- 40404 3335 57 volcanic volcanic JJ 40404 3335 58 necks neck NNS 40404 3335 59 , , , 40404 3335 60 ( ( -LRB- 40404 3335 61 3 3 LS 40404 3335 62 ) ) -RRB- 40404 3335 63 intrusive intrusive JJ 40404 3335 64 sheets sheet NNS 40404 3335 65 , , , 40404 3335 66 and and CC 40404 3335 67 ( ( -LRB- 40404 3335 68 4 4 LS 40404 3335 69 ) ) -RRB- 40404 3335 70 intrusive intrusive JJ 40404 3335 71 masses masse NNS 40404 3335 72 . . . 40404 3336 1 = = NFP 40404 3336 2 Dikes.= dikes.= VB 40404 3336 3 The the DT 40404 3336 4 sheet sheet NN 40404 3336 5 of of IN 40404 3336 6 once once RB 40404 3336 7 molten molten JJ 40404 3336 8 rock rock NN 40404 3336 9 with with IN 40404 3336 10 which which WDT 40404 3336 11 a a DT 40404 3336 12 fissure fissure NN 40404 3336 13 has have VBZ 40404 3336 14 been be VBN 40404 3336 15 filled fill VBN 40404 3336 16 is be VBZ 40404 3336 17 known know VBN 40404 3336 18 as as IN 40404 3336 19 a a DT 40404 3336 20 dike dike NN 40404 3336 21 . . . 40404 3337 1 Dikes dike NNS 40404 3337 2 are be VBP 40404 3337 3 formed form VBN 40404 3337 4 when when WRB 40404 3337 5 volcanic volcanic JJ 40404 3337 6 cones cone NNS 40404 3337 7 are be VBP 40404 3337 8 rent rent NN 40404 3337 9 by by IN 40404 3337 10 explosions explosion NNS 40404 3337 11 or or CC 40404 3337 12 by by IN 40404 3337 13 the the DT 40404 3337 14 weight weight NN 40404 3337 15 of of IN 40404 3337 16 the the DT 40404 3337 17 lava lava NN 40404 3337 18 column column NN 40404 3337 19 in in IN 40404 3337 20 the the DT 40404 3337 21 duct duct NN 40404 3337 22 , , , 40404 3337 23 and and CC 40404 3337 24 on on IN 40404 3337 25 the the DT 40404 3337 26 dissection dissection NN 40404 3337 27 of of IN 40404 3337 28 the the DT 40404 3337 29 pile pile NN 40404 3337 30 they -PRON- PRP 40404 3337 31 appear appear VBP 40404 3337 32 as as IN 40404 3337 33 radiating radiate VBG 40404 3337 34 vertical vertical JJ 40404 3337 35 ribs rib NNS 40404 3337 36 cutting cut VBG 40404 3337 37 across across IN 40404 3337 38 the the DT 40404 3337 39 layers layer NNS 40404 3337 40 of of IN 40404 3337 41 lava lava NN 40404 3337 42 and and CC 40404 3337 43 tuff tuff NNP 40404 3337 44 of of IN 40404 3337 45 which which WDT 40404 3337 46 the the DT 40404 3337 47 cone cone NN 40404 3337 48 is be VBZ 40404 3337 49 built build VBN 40404 3337 50 . . . 40404 3338 1 In in IN 40404 3338 2 regions region NNS 40404 3338 3 undergoing undergoing JJ 40404 3338 4 deformation deformation NN 40404 3338 5 rocks rock NNS 40404 3338 6 lying lie VBG 40404 3338 7 deep deep RB 40404 3338 8 below below IN 40404 3338 9 the the DT 40404 3338 10 ground ground NN 40404 3338 11 are be VBP 40404 3338 12 often often RB 40404 3338 13 broken break VBN 40404 3338 14 and and CC 40404 3338 15 the the DT 40404 3338 16 fissures fissure NNS 40404 3338 17 are be VBP 40404 3338 18 filled fill VBN 40404 3338 19 with with IN 40404 3338 20 molten molten JJ 40404 3338 21 rock rock NN 40404 3338 22 from from IN 40404 3338 23 beneath beneath NNP 40404 3338 24 , , , 40404 3338 25 which which WDT 40404 3338 26 finds find VBZ 40404 3338 27 no no DT 40404 3338 28 outlet outlet NN 40404 3338 29 to to IN 40404 3338 30 the the DT 40404 3338 31 surface surface NN 40404 3338 32 . . . 40404 3339 1 Such such JJ 40404 3339 2 dikes dike NNS 40404 3339 3 are be VBP 40404 3339 4 common common JJ 40404 3339 5 in in IN 40404 3339 6 areas area NNS 40404 3339 7 of of IN 40404 3339 8 the the DT 40404 3339 9 most most RBS 40404 3339 10 ancient ancient JJ 40404 3339 11 rocks rock NNS 40404 3339 12 , , , 40404 3339 13 which which WDT 40404 3339 14 have have VBP 40404 3339 15 been be VBN 40404 3339 16 brought bring VBN 40404 3339 17 to to IN 40404 3339 18 light light NN 40404 3339 19 by by IN 40404 3339 20 long long JJ 40404 3339 21 erosion erosion NN 40404 3339 22 . . . 40404 3340 1 In in IN 40404 3340 2 exceptional exceptional JJ 40404 3340 3 cases case NNS 40404 3340 4 dikes dike NNS 40404 3340 5 may may MD 40404 3340 6 reach reach VB 40404 3340 7 the the DT 40404 3340 8 length length NN 40404 3340 9 of of IN 40404 3340 10 fifty fifty CD 40404 3340 11 or or CC 40404 3340 12 one one CD 40404 3340 13 hundred hundred CD 40404 3340 14 miles mile NNS 40404 3340 15 . . . 40404 3341 1 They -PRON- PRP 40404 3341 2 vary vary VBP 40404 3341 3 in in IN 40404 3341 4 width width NN 40404 3341 5 from from IN 40404 3341 6 a a DT 40404 3341 7 fraction fraction NN 40404 3341 8 of of IN 40404 3341 9 a a DT 40404 3341 10 foot foot NN 40404 3341 11 to to TO 40404 3341 12 even even RB 40404 3341 13 as as RB 40404 3341 14 much much JJ 40404 3341 15 as as IN 40404 3341 16 three three CD 40404 3341 17 hundred hundred CD 40404 3341 18 feet foot NNS 40404 3341 19 . . . 40404 3342 1 [ [ -LRB- 40404 3342 2 Illustration illustration NN 40404 3342 3 : : : 40404 3342 4 Fig Fig NNP 40404 3342 5 . . . 40404 3343 1 239 239 CD 40404 3343 2 . . . 40404 3344 1 Dikes Dikes NNP 40404 3344 2 , , , 40404 3344 3 Spanish Spanish NNP 40404 3344 4 Peaks Peaks NNP 40404 3344 5 , , , 40404 3344 6 Colorado Colorado NNP 40404 3344 7 ] ] -RRB- 40404 3344 8 Dikes Dikes NNP 40404 3344 9 are be VBP 40404 3344 10 commonly commonly RB 40404 3344 11 more more RBR 40404 3344 12 fine fine JJ 40404 3344 13 of of IN 40404 3344 14 grain grain NN 40404 3344 15 on on IN 40404 3344 16 the the DT 40404 3344 17 sides side NNS 40404 3344 18 than than IN 40404 3344 19 in in IN 40404 3344 20 the the DT 40404 3344 21 center center NN 40404 3344 22 , , , 40404 3344 23 and and CC 40404 3344 24 may may MD 40404 3344 25 have have VB 40404 3344 26 a a DT 40404 3344 27 glassy glassy NN 40404 3344 28 and and CC 40404 3344 29 crackled crackle VBN 40404 3344 30 surface surface NN 40404 3344 31 where where WRB 40404 3344 32 they -PRON- PRP 40404 3344 33 meet meet VBP 40404 3344 34 the the DT 40404 3344 35 inclosing inclose VBG 40404 3344 36 rock rock NN 40404 3344 37 . . . 40404 3345 1 Can Can MD 40404 3345 2 you -PRON- PRP 40404 3345 3 account account VB 40404 3345 4 for for IN 40404 3345 5 this this DT 40404 3345 6 on on IN 40404 3345 7 any any DT 40404 3345 8 principle principle NN 40404 3345 9 which which WDT 40404 3345 10 you -PRON- PRP 40404 3345 11 have have VBP 40404 3345 12 learned learn VBN 40404 3345 13 ? ? . 40404 3346 1 [ [ -LRB- 40404 3346 2 Illustration illustration NN 40404 3346 3 : : : 40404 3346 4 Fig Fig NNP 40404 3346 5 . . . 40404 3347 1 240 240 CD 40404 3347 2 . . . 40404 3348 1 A a DT 40404 3348 2 Dissected dissected JJ 40404 3348 3 Volcanic Volcanic NNP 40404 3348 4 Cone Cone NNP 40404 3348 5 _ _ NNP 40404 3348 6 N N NNP 40404 3348 7 _ _ NNP 40404 3348 8 , , , 40404 3348 9 volcanic volcanic JJ 40404 3348 10 neck neck NN 40404 3348 11 ; ; : 40404 3348 12 _ _ NNP 40404 3348 13 l l NNP 40404 3348 14 _ _ NNP 40404 3348 15 , , , 40404 3348 16 _ _ NNP 40404 3348 17 l l NNP 40404 3348 18 _ _ NNP 40404 3348 19 , , , 40404 3348 20 lava lava NN 40404 3348 21 - - HYPH 40404 3348 22 topped top VBN 40404 3348 23 table table NN 40404 3348 24 mountains mountain NNS 40404 3348 25 ; ; : 40404 3348 26 _ _ NNP 40404 3348 27 t t NNP 40404 3348 28 _ _ NNP 40404 3348 29 , , , 40404 3348 30 _ _ NNP 40404 3348 31 t t NNP 40404 3348 32 _ _ NNP 40404 3348 33 , , , 40404 3348 34 beds bed NNS 40404 3348 35 of of IN 40404 3348 36 tuff tuff NNP 40404 3348 37 ; ; : 40404 3348 38 _ _ NNP 40404 3348 39 d d NNP 40404 3348 40 _ _ NNP 40404 3348 41 , , , 40404 3348 42 _ _ NNP 40404 3348 43 d d NNP 40404 3348 44 _ _ NNP 40404 3348 45 , , , 40404 3348 46 dikes dike NNS 40404 3348 47 ; ; , 40404 3348 48 dotted dotted JJ 40404 3348 49 lines line NNS 40404 3348 50 indicate indicate VBP 40404 3348 51 the the DT 40404 3348 52 initial initial JJ 40404 3348 53 profile profile NN 40404 3348 54 ] ] -RRB- 40404 3348 55 = = NFP 40404 3348 56 Volcanic volcanic JJ 40404 3348 57 necks.= necks.= NN 40404 3348 58 The the DT 40404 3348 59 pipe pipe NN 40404 3348 60 of of IN 40404 3348 61 a a DT 40404 3348 62 volcano volcano NN 40404 3348 63 rises rise VBZ 40404 3348 64 from from IN 40404 3348 65 far far RB 40404 3348 66 below below IN 40404 3348 67 the the DT 40404 3348 68 base base NN 40404 3348 69 of of IN 40404 3348 70 the the DT 40404 3348 71 cone,--from cone,--from NNP 40404 3348 72 the the DT 40404 3348 73 deep deep JJ 40404 3348 74 reservoir reservoir NN 40404 3348 75 from from IN 40404 3348 76 which which WDT 40404 3348 77 its -PRON- PRP$ 40404 3348 78 eruptions eruption NNS 40404 3348 79 are be VBP 40404 3348 80 supplied supply VBN 40404 3348 81 . . . 40404 3349 1 When when WRB 40404 3349 2 the the DT 40404 3349 3 volcano volcano NN 40404 3349 4 has have VBZ 40404 3349 5 become become VBN 40404 3349 6 extinct extinct JJ 40404 3349 7 this this DT 40404 3349 8 great great JJ 40404 3349 9 tube tube NN 40404 3349 10 remains remain VBZ 40404 3349 11 filled fill VBN 40404 3349 12 with with IN 40404 3349 13 hardened harden VBN 40404 3349 14 lava lava NN 40404 3349 15 . . . 40404 3350 1 It -PRON- PRP 40404 3350 2 forms form VBZ 40404 3350 3 a a DT 40404 3350 4 cylindrical cylindrical JJ 40404 3350 5 core core NN 40404 3350 6 of of IN 40404 3350 7 solid solid JJ 40404 3350 8 rock rock NN 40404 3350 9 , , , 40404 3350 10 except except IN 40404 3350 11 for for IN 40404 3350 12 some some DT 40404 3350 13 distance distance NN 40404 3350 14 below below IN 40404 3350 15 the the DT 40404 3350 16 ancient ancient JJ 40404 3350 17 crater crater NN 40404 3350 18 , , , 40404 3350 19 where where WRB 40404 3350 20 it -PRON- PRP 40404 3350 21 may may MD 40404 3350 22 contain contain VB 40404 3350 23 a a DT 40404 3350 24 mass mass NN 40404 3350 25 of of IN 40404 3350 26 fragments fragment NNS 40404 3350 27 which which WDT 40404 3350 28 had have VBD 40404 3350 29 fallen fall VBN 40404 3350 30 back back RB 40404 3350 31 into into IN 40404 3350 32 the the DT 40404 3350 33 chimney chimney NN 40404 3350 34 after after IN 40404 3350 35 being be VBG 40404 3350 36 hurled hurl VBN 40404 3350 37 into into IN 40404 3350 38 the the DT 40404 3350 39 air air NN 40404 3350 40 . . . 40404 3351 1 [ [ -LRB- 40404 3351 2 Illustration illustration NN 40404 3351 3 : : : 40404 3351 4 Fig Fig NNP 40404 3351 5 . . . 40404 3352 1 241 241 CD 40404 3352 2 . . . 40404 3353 1 Mount Mount NNP 40404 3353 2 Johnson Johnson NNP 40404 3353 3 , , , 40404 3353 4 a a DT 40404 3353 5 Volcanic volcanic JJ 40404 3353 6 Neck Neck NNP 40404 3353 7 near near IN 40404 3353 8 Montreal Montreal NNP 40404 3353 9 ] ] -RRB- 40404 3353 10 As as IN 40404 3353 11 the the DT 40404 3353 12 mountain mountain NN 40404 3353 13 is be VBZ 40404 3353 14 worn wear VBN 40404 3353 15 down down RP 40404 3353 16 , , , 40404 3353 17 this this DT 40404 3353 18 central central JJ 40404 3353 19 column column NN 40404 3353 20 known know VBN 40404 3353 21 as as IN 40404 3353 22 the the DT 40404 3353 23 _ _ NNP 40404 3353 24 volcanic volcanic JJ 40404 3353 25 neck neck NN 40404 3353 26 _ _ NNP 40404 3353 27 is be VBZ 40404 3353 28 left leave VBN 40404 3353 29 standing stand VBG 40404 3353 30 as as IN 40404 3353 31 a a DT 40404 3353 32 conical conical JJ 40404 3353 33 hill hill NN 40404 3353 34 ( ( -LRB- 40404 3353 35 Fig fig NN 40404 3353 36 . . . 40404 3354 1 240 240 LS 40404 3354 2 ) ) -RRB- 40404 3354 3 . . . 40404 3355 1 Even even RB 40404 3355 2 when when WRB 40404 3355 3 every every DT 40404 3355 4 other other JJ 40404 3355 5 trace trace NN 40404 3355 6 of of IN 40404 3355 7 the the DT 40404 3355 8 volcano volcano NN 40404 3355 9 has have VBZ 40404 3355 10 been be VBN 40404 3355 11 swept sweep VBN 40404 3355 12 away away RB 40404 3355 13 , , , 40404 3355 14 erosion erosion NN 40404 3355 15 will will MD 40404 3355 16 not not RB 40404 3355 17 have have VB 40404 3355 18 passed pass VBN 40404 3355 19 below below IN 40404 3355 20 this this DT 40404 3355 21 great great JJ 40404 3355 22 stalk stalk NN 40404 3355 23 on on IN 40404 3355 24 which which WDT 40404 3355 25 the the DT 40404 3355 26 volcano volcano NN 40404 3355 27 was be VBD 40404 3355 28 borne bear VBN 40404 3355 29 as as IN 40404 3355 30 a a DT 40404 3355 31 fiery fiery JJ 40404 3355 32 flower flower NN 40404 3355 33 whose whose WP$ 40404 3355 34 site site NN 40404 3355 35 it -PRON- PRP 40404 3355 36 remains remain VBZ 40404 3355 37 to to TO 40404 3355 38 mark mark VB 40404 3355 39 . . . 40404 3356 1 In in IN 40404 3356 2 volcanic volcanic JJ 40404 3356 3 regions region NNS 40404 3356 4 of of IN 40404 3356 5 deep deep JJ 40404 3356 6 denudation denudation NN 40404 3356 7 volcanic volcanic JJ 40404 3356 8 necks neck NNS 40404 3356 9 rise rise VBP 40404 3356 10 solitary solitary JJ 40404 3356 11 and and CC 40404 3356 12 abrupt abrupt JJ 40404 3356 13 from from IN 40404 3356 14 the the DT 40404 3356 15 surrounding surround VBG 40404 3356 16 country country NN 40404 3356 17 as as IN 40404 3356 18 dome dome NN 40404 3356 19 - - HYPH 40404 3356 20 shaped shape VBN 40404 3356 21 hills hill NNS 40404 3356 22 . . . 40404 3357 1 They -PRON- PRP 40404 3357 2 are be VBP 40404 3357 3 marked mark VBN 40404 3357 4 features feature NNS 40404 3357 5 in in IN 40404 3357 6 the the DT 40404 3357 7 landscape landscape NN 40404 3357 8 in in IN 40404 3357 9 parts part NNS 40404 3357 10 of of IN 40404 3357 11 Scotland Scotland NNP 40404 3357 12 and and CC 40404 3357 13 in in IN 40404 3357 14 the the DT 40404 3357 15 St. St. NNP 40404 3357 16 Lawrence Lawrence NNP 40404 3357 17 valley valley NN 40404 3357 18 about about IN 40404 3357 19 Montreal Montreal NNP 40404 3357 20 ( ( -LRB- 40404 3357 21 Fig Fig NNP 40404 3357 22 . . . 40404 3358 1 241 241 CD 40404 3358 2 ) ) -RRB- 40404 3358 3 . . . 40404 3359 1 [ [ -LRB- 40404 3359 2 Illustration illustration NN 40404 3359 3 : : : 40404 3359 4 Fig Fig NNP 40404 3359 5 . . . 40404 3360 1 242 242 CD 40404 3360 2 . . . 40404 3361 1 The the DT 40404 3361 2 Palisades palisade NNS 40404 3361 3 of of IN 40404 3361 4 the the DT 40404 3361 5 Hudson Hudson NNP 40404 3361 6 , , , 40404 3361 7 New New NNP 40404 3361 8 Jersey Jersey NNP 40404 3361 9 ] ] -RRB- 40404 3361 10 = = SYM 40404 3361 11 Intrusive intrusive JJ 40404 3361 12 sheets.= sheets.= NNP 40404 3361 13 Sheets Sheets NNPS 40404 3361 14 of of IN 40404 3361 15 igneous igneous JJ 40404 3361 16 rocks rock NNS 40404 3361 17 are be VBP 40404 3361 18 sometimes sometimes RB 40404 3361 19 found find VBN 40404 3361 20 interleaved interleave VBN 40404 3361 21 with with IN 40404 3361 22 sedimentary sedimentary JJ 40404 3361 23 strata stratum NNS 40404 3361 24 , , , 40404 3361 25 especially especially RB 40404 3361 26 in in IN 40404 3361 27 regions region NNS 40404 3361 28 where where WRB 40404 3361 29 the the DT 40404 3361 30 rocks rock NNS 40404 3361 31 have have VBP 40404 3361 32 been be VBN 40404 3361 33 deformed deform VBN 40404 3361 34 and and CC 40404 3361 35 have have VBP 40404 3361 36 suffered suffer VBN 40404 3361 37 from from IN 40404 3361 38 volcanic volcanic JJ 40404 3361 39 action action NN 40404 3361 40 . . . 40404 3362 1 In in IN 40404 3362 2 some some DT 40404 3362 3 instances instance NNS 40404 3362 4 such such PDT 40404 3362 5 a a DT 40404 3362 6 sheet sheet NN 40404 3362 7 is be VBZ 40404 3362 8 seen see VBN 40404 3362 9 to to TO 40404 3362 10 be be VB 40404 3362 11 _ _ NNP 40404 3362 12 contemporaneous contemporaneous JJ 40404 3362 13 _ _ NNP 40404 3362 14 ( ( -LRB- 40404 3362 15 p. p. NN 40404 3362 16 248 248 CD 40404 3362 17 ) ) -RRB- 40404 3362 18 . . . 40404 3363 1 In in IN 40404 3363 2 other other JJ 40404 3363 3 instances instance NNS 40404 3363 4 the the DT 40404 3363 5 sheet sheet NN 40404 3363 6 must must MD 40404 3363 7 be be VB 40404 3363 8 _ _ NNP 40404 3363 9 intrusive intrusive JJ 40404 3363 10 _ _ NNP 40404 3363 11 . . . 40404 3364 1 The the DT 40404 3364 2 overlying overlie VBG 40404 3364 3 stratum stratum NN 40404 3364 4 , , , 40404 3364 5 as as RB 40404 3364 6 well well RB 40404 3364 7 as as IN 40404 3364 8 that that DT 40404 3364 9 beneath beneath RB 40404 3364 10 , , , 40404 3364 11 has have VBZ 40404 3364 12 been be VBN 40404 3364 13 affected affect VBN 40404 3364 14 by by IN 40404 3364 15 the the DT 40404 3364 16 heat heat NN 40404 3364 17 of of IN 40404 3364 18 the the DT 40404 3364 19 once once RB 40404 3364 20 molten molten JJ 40404 3364 21 rock rock NN 40404 3364 22 . . . 40404 3365 1 We -PRON- PRP 40404 3365 2 infer infer VBP 40404 3365 3 that that IN 40404 3365 4 the the DT 40404 3365 5 igneous igneous JJ 40404 3365 6 rock rock NN 40404 3365 7 when when WRB 40404 3365 8 in in IN 40404 3365 9 a a DT 40404 3365 10 molten molten JJ 40404 3365 11 state state NN 40404 3365 12 was be VBD 40404 3365 13 forced force VBN 40404 3365 14 between between IN 40404 3365 15 the the DT 40404 3365 16 strata strata NN 40404 3365 17 , , , 40404 3365 18 much much RB 40404 3365 19 as as IN 40404 3365 20 a a DT 40404 3365 21 card card NN 40404 3365 22 may may MD 40404 3365 23 be be VB 40404 3365 24 pushed push VBN 40404 3365 25 between between IN 40404 3365 26 the the DT 40404 3365 27 leaves leave NNS 40404 3365 28 of of IN 40404 3365 29 a a DT 40404 3365 30 closed close VBN 40404 3365 31 book book NN 40404 3365 32 . . . 40404 3366 1 The the DT 40404 3366 2 liquid liquid NN 40404 3366 3 wedged wedge VBD 40404 3366 4 its -PRON- PRP$ 40404 3366 5 way way NN 40404 3366 6 between between IN 40404 3366 7 the the DT 40404 3366 8 layers layer NNS 40404 3366 9 , , , 40404 3366 10 lifting lift VBG 40404 3366 11 those those DT 40404 3366 12 above above RB 40404 3366 13 to to TO 40404 3366 14 make make VB 40404 3366 15 room room NN 40404 3366 16 for for IN 40404 3366 17 itself -PRON- PRP 40404 3366 18 . . . 40404 3367 1 The the DT 40404 3367 2 source source NN 40404 3367 3 of of IN 40404 3367 4 the the DT 40404 3367 5 intrusive intrusive JJ 40404 3367 6 sheet sheet NN 40404 3367 7 may may MD 40404 3367 8 often often RB 40404 3367 9 be be VB 40404 3367 10 traced trace VBN 40404 3367 11 to to IN 40404 3367 12 some some DT 40404 3367 13 dike dike NN 40404 3367 14 ( ( -LRB- 40404 3367 15 known know VBN 40404 3367 16 therefore therefore RB 40404 3367 17 as as IN 40404 3367 18 the the DT 40404 3367 19 _ _ NNP 40404 3367 20 feeding feeding NN 40404 3367 21 dike dike NNP 40404 3367 22 _ _ NNP 40404 3367 23 ) ) -RRB- 40404 3367 24 , , , 40404 3367 25 or or CC 40404 3367 26 to to IN 40404 3367 27 some some DT 40404 3367 28 mass mass NN 40404 3367 29 of of IN 40404 3367 30 igneous igneous JJ 40404 3367 31 rock rock NN 40404 3367 32 . . . 40404 3368 1 Intrusive intrusive JJ 40404 3368 2 sheets sheet NNS 40404 3368 3 may may MD 40404 3368 4 extend extend VB 40404 3368 5 a a DT 40404 3368 6 score score NN 40404 3368 7 and and CC 40404 3368 8 more more JJR 40404 3368 9 of of IN 40404 3368 10 miles mile NNS 40404 3368 11 , , , 40404 3368 12 and and CC 40404 3368 13 , , , 40404 3368 14 like like IN 40404 3368 15 the the DT 40404 3368 16 longest long JJS 40404 3368 17 surface surface NN 40404 3368 18 flows flow VBZ 40404 3368 19 , , , 40404 3368 20 the the DT 40404 3368 21 most most RBS 40404 3368 22 extensive extensive JJ 40404 3368 23 sheets sheet NNS 40404 3368 24 consist consist VBP 40404 3368 25 of of IN 40404 3368 26 the the DT 40404 3368 27 more more RBR 40404 3368 28 fusible fusible JJ 40404 3368 29 and and CC 40404 3368 30 fluid fluid JJ 40404 3368 31 lavas,--those lavas,--those NN 40404 3368 32 of of IN 40404 3368 33 the the DT 40404 3368 34 basic basic JJ 40404 3368 35 class class NN 40404 3368 36 of of IN 40404 3368 37 which which WDT 40404 3368 38 basalt basalt NN 40404 3368 39 is be VBZ 40404 3368 40 an an DT 40404 3368 41 example example NN 40404 3368 42 . . . 40404 3369 1 Intrusive intrusive JJ 40404 3369 2 sheets sheet NNS 40404 3369 3 are be VBP 40404 3369 4 usually usually RB 40404 3369 5 harder hard JJR 40404 3369 6 than than IN 40404 3369 7 the the DT 40404 3369 8 strata strata NN 40404 3369 9 in in IN 40404 3369 10 which which WDT 40404 3369 11 they -PRON- PRP 40404 3369 12 lie lie VBP 40404 3369 13 and and CC 40404 3369 14 are be VBP 40404 3369 15 therefore therefore RB 40404 3369 16 often often RB 40404 3369 17 left leave VBN 40404 3369 18 in in IN 40404 3369 19 relief relief NN 40404 3369 20 after after IN 40404 3369 21 long long JJ 40404 3369 22 denudation denudation NN 40404 3369 23 of of IN 40404 3369 24 the the DT 40404 3369 25 region region NN 40404 3369 26 ( ( -LRB- 40404 3369 27 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_ NNP 40404 3373 31 , , , 40404 3373 32 Hudson Hudson NNP 40404 3373 33 River River NNP 40404 3373 34 ] ] -RRB- 40404 3373 35 On on IN 40404 3373 36 the the DT 40404 3373 37 west west NNP 40404 3373 38 bank bank NNP 40404 3373 39 of of IN 40404 3373 40 the the DT 40404 3373 41 Hudson Hudson NNP 40404 3373 42 there there EX 40404 3373 43 extends extend VBZ 40404 3373 44 from from IN 40404 3373 45 New New NNP 40404 3373 46 York York NNP 40404 3373 47 Bay Bay NNP 40404 3373 48 north north NN 40404 3373 49 for for IN 40404 3373 50 thirty thirty CD 40404 3373 51 miles mile NNS 40404 3373 52 a a DT 40404 3373 53 bold bold JJ 40404 3373 54 cliff cliff NN 40404 3373 55 several several JJ 40404 3373 56 hundred hundred CD 40404 3373 57 feet foot NNS 40404 3373 58 high,--the high,--the NNP 40404 3373 59 _ _ NNP 40404 3373 60 Palisades Palisades NNPS 40404 3373 61 of of IN 40404 3373 62 the the DT 40404 3373 63 Hudson Hudson NNP 40404 3373 64 _ _ NNP 40404 3373 65 . . . 40404 3374 1 It -PRON- PRP 40404 3374 2 is be VBZ 40404 3374 3 the the DT 40404 3374 4 outcropping outcropping JJ 40404 3374 5 edge edge NN 40404 3374 6 of of IN 40404 3374 7 a a DT 40404 3374 8 sheet sheet NN 40404 3374 9 of of IN 40404 3374 10 ancient ancient JJ 40404 3374 11 igneous igneous JJ 40404 3374 12 rock rock NN 40404 3374 13 , , , 40404 3374 14 which which WDT 40404 3374 15 rests rest VBZ 40404 3374 16 on on IN 40404 3374 17 stratified stratified JJ 40404 3374 18 sandstones sandstone NNS 40404 3374 19 and and CC 40404 3374 20 is be VBZ 40404 3374 21 overlain overlain NN 40404 3374 22 by by IN 40404 3374 23 strata strata NN 40404 3374 24 of of IN 40404 3374 25 the the DT 40404 3374 26 same same JJ 40404 3374 27 series series NN 40404 3374 28 . . . 40404 3375 1 Sandstones sandstone NNS 40404 3375 2 and and CC 40404 3375 3 lava lava VB 40404 3375 4 sheet sheet NN 40404 3375 5 together together RB 40404 3375 6 dip dip VB 40404 3375 7 gently gently RB 40404 3375 8 to to IN 40404 3375 9 the the DT 40404 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E. NNP 40404 3381 2 and and CC 40404 3381 3 Gray Gray NNP 40404 3381 4 Peak Peak NNP 40404 3381 5 , , , 40404 3381 6 G g NN 40404 3381 7 , , , 40404 3381 8 Yellowstone Yellowstone NNP 40404 3381 9 National National NNP 40404 3381 10 Park Park NNP 40404 3381 11 Intrusive intrusive JJ 40404 3381 12 sheets sheet NNS 40404 3381 13 and and CC 40404 3381 14 masses masse NNS 40404 3381 15 of of IN 40404 3381 16 igneous igneous JJ 40404 3381 17 rock rock NN 40404 3381 18 are be VBP 40404 3381 19 drawn draw VBN 40404 3381 20 in in IN 40404 3381 21 black black JJ 40404 3381 22 ] ] -RRB- 40404 3381 23 The the DT 40404 3381 24 latter latter NN 40404 3381 25 is be VBZ 40404 3381 26 the the DT 40404 3381 27 case case NN 40404 3381 28 : : : 40404 3381 29 for for IN 40404 3381 30 the the DT 40404 3381 31 overlying overlie VBG 40404 3381 32 stratum stratum NN 40404 3381 33 is be VBZ 40404 3381 34 intensely intensely RB 40404 3381 35 baked bake VBN 40404 3381 36 along along IN 40404 3381 37 the the DT 40404 3381 38 zone zone NN 40404 3381 39 of of IN 40404 3381 40 contact contact NN 40404 3381 41 . . . 40404 3382 1 At at IN 40404 3382 2 the the DT 40404 3382 3 west west JJ 40404 3382 4 edge edge NN 40404 3382 5 of of IN 40404 3382 6 the the DT 40404 3382 7 sheet sheet NN 40404 3382 8 is be VBZ 40404 3382 9 found find VBN 40404 3382 10 the the DT 40404 3382 11 dike dike NN 40404 3382 12 in in IN 40404 3382 13 which which WDT 40404 3382 14 the the DT 40404 3382 15 lava lava NN 40404 3382 16 rose rise VBD 40404 3382 17 to to TO 40404 3382 18 force force VB 40404 3382 19 its -PRON- PRP$ 40404 3382 20 way way NN 40404 3382 21 far far RB 40404 3382 22 and and CC 40404 3382 23 wide wide RB 40404 3382 24 between between IN 40404 3382 25 the the DT 40404 3382 26 strata strata NN 40404 3382 27 . . . 40404 3383 1 _ _ NNP 40404 3383 2 Electric Electric NNP 40404 3383 3 Peak Peak NNP 40404 3383 4 _ _ NNP 40404 3383 5 , , , 40404 3383 6 one one CD 40404 3383 7 of of IN 40404 3383 8 the the DT 40404 3383 9 prominent prominent JJ 40404 3383 10 mountains mountain NNS 40404 3383 11 of of IN 40404 3383 12 the the DT 40404 3383 13 Yellowstone Yellowstone NNP 40404 3383 14 National National NNP 40404 3383 15 Park Park NNP 40404 3383 16 , , , 40404 3383 17 is be VBZ 40404 3383 18 carved carve VBN 40404 3383 19 out out IN 40404 3383 20 of of IN 40404 3383 21 a a DT 40404 3383 22 mass mass NN 40404 3383 23 of of IN 40404 3383 24 strata strata NN 40404 3383 25 into into IN 40404 3383 26 which which WDT 40404 3383 27 many many JJ 40404 3383 28 sheets sheet NNS 40404 3383 29 of of IN 40404 3383 30 molten molten JJ 40404 3383 31 rock rock NN 40404 3383 32 have have VBP 40404 3383 33 been be VBN 40404 3383 34 intruded intrude VBN 40404 3383 35 . . . 40404 3384 1 The the DT 40404 3384 2 western western JJ 40404 3384 3 summit summit NN 40404 3384 4 consists consist VBZ 40404 3384 5 of of IN 40404 3384 6 such such PDT 40404 3384 7 a a DT 40404 3384 8 sheet sheet NN 40404 3384 9 several several JJ 40404 3384 10 hundred hundred CD 40404 3384 11 feet foot NNS 40404 3384 12 thick thick JJ 40404 3384 13 . . . 40404 3385 1 Studying study VBG 40404 3385 2 the the DT 40404 3385 3 section section NN 40404 3385 4 of of IN 40404 3385 5 Figure Figure NNP 40404 3385 6 244 244 CD 40404 3385 7 , , , 40404 3385 8 what what WDT 40404 3385 9 inference inference NN 40404 3385 10 do do VBP 40404 3385 11 you -PRON- PRP 40404 3385 12 draw draw VB 40404 3385 13 as as IN 40404 3385 14 to to IN 40404 3385 15 the the DT 40404 3385 16 source source NN 40404 3385 17 of of IN 40404 3385 18 these these DT 40404 3385 19 intrusive intrusive JJ 40404 3385 20 sheets sheet NNS 40404 3385 21 ? ? . 40404 3386 1 [ [ -LRB- 40404 3386 2 Illustration illustration NN 40404 3386 3 : : : 40404 3386 4 Fig Fig NNP 40404 3386 5 . . . 40404 3387 1 245 245 CD 40404 3387 2 . . . 40404 3388 1 Stone Stone NNP 40404 3388 2 Mountain Mountain NNP 40404 3388 3 , , , 40404 3388 4 Georgia Georgia NNP 40404 3388 5 , , , 40404 3388 6 a a DT 40404 3388 7 Granite Granite NNP 40404 3388 8 Boss Boss NNP 40404 3388 9 ] ] -RRB- 40404 3388 10 Intrusive Intrusive NNP 40404 3388 11 Masses Masses NNPS 40404 3388 12 = = SYM 40404 3388 13 Bosses.= bosses.= NN 40404 3388 14 This this DT 40404 3388 15 name name NN 40404 3388 16 is be VBZ 40404 3388 17 generally generally RB 40404 3388 18 applied apply VBN 40404 3388 19 to to IN 40404 3388 20 huge huge JJ 40404 3388 21 irregular irregular JJ 40404 3388 22 masses masse NNS 40404 3388 23 of of IN 40404 3388 24 coarsely coarsely RB 40404 3388 25 crystalline crystalline JJ 40404 3388 26 igneous igneous JJ 40404 3388 27 rock rock NN 40404 3388 28 lying lie VBG 40404 3388 29 in in IN 40404 3388 30 the the DT 40404 3388 31 midst midst NN 40404 3388 32 of of IN 40404 3388 33 other other JJ 40404 3388 34 formations formation NNS 40404 3388 35 . . . 40404 3389 1 Bosses boss NNS 40404 3389 2 vary vary VBP 40404 3389 3 greatly greatly RB 40404 3389 4 in in IN 40404 3389 5 size size NN 40404 3389 6 and and CC 40404 3389 7 may may MD 40404 3389 8 reach reach VB 40404 3389 9 scores score NNS 40404 3389 10 of of IN 40404 3389 11 miles mile NNS 40404 3389 12 in in IN 40404 3389 13 extent extent NN 40404 3389 14 . . . 40404 3390 1 Seldom seldom RB 40404 3390 2 are be VBP 40404 3390 3 there there EX 40404 3390 4 any any DT 40404 3390 5 evidences evidence NNS 40404 3390 6 found find VBD 40404 3390 7 that that IN 40404 3390 8 bosses boss NNS 40404 3390 9 ever ever RB 40404 3390 10 had have VBD 40404 3390 11 connection connection NN 40404 3390 12 with with IN 40404 3390 13 the the DT 40404 3390 14 surface surface NN 40404 3390 15 . . . 40404 3391 1 On on IN 40404 3391 2 the the DT 40404 3391 3 other other JJ 40404 3391 4 hand hand NN 40404 3391 5 , , , 40404 3391 6 it -PRON- PRP 40404 3391 7 is be VBZ 40404 3391 8 often often RB 40404 3391 9 proved prove VBN 40404 3391 10 that that IN 40404 3391 11 they -PRON- PRP 40404 3391 12 have have VBP 40404 3391 13 been be VBN 40404 3391 14 driven drive VBN 40404 3391 15 , , , 40404 3391 16 or or CC 40404 3391 17 have have VBP 40404 3391 18 melted melt VBN 40404 3391 19 their -PRON- PRP$ 40404 3391 20 way way NN 40404 3391 21 , , , 40404 3391 22 upward upward RB 40404 3391 23 into into IN 40404 3391 24 the the DT 40404 3391 25 formations formation NNS 40404 3391 26 in in IN 40404 3391 27 which which WDT 40404 3391 28 they -PRON- PRP 40404 3391 29 lie lie VBP 40404 3391 30 ; ; : 40404 3391 31 for for IN 40404 3391 32 they -PRON- PRP 40404 3391 33 give give VBP 40404 3391 34 off off RP 40404 3391 35 dikes dike NNS 40404 3391 36 and and CC 40404 3391 37 intrusive intrusive JJ 40404 3391 38 sheets sheet NNS 40404 3391 39 , , , 40404 3391 40 and and CC 40404 3391 41 have have VBP 40404 3391 42 profoundly profoundly RB 40404 3391 43 altered alter VBN 40404 3391 44 the the DT 40404 3391 45 rocks rock NNS 40404 3391 46 about about IN 40404 3391 47 them -PRON- PRP 40404 3391 48 by by IN 40404 3391 49 their -PRON- PRP$ 40404 3391 50 heat heat NN 40404 3391 51 . . . 40404 3392 1 [ [ -LRB- 40404 3392 2 Illustration illustration NN 40404 3392 3 : : : 40404 3392 4 Fig Fig NNP 40404 3392 5 . . . 40404 3393 1 246 246 CD 40404 3393 2 . . . 40404 3394 1 Map Map NNP 40404 3394 2 of of IN 40404 3394 3 Granite Granite NNP 40404 3394 4 Bosses Bosses NNP 40404 3394 5 near near IN 40404 3394 6 Baltimore Baltimore NNP 40404 3394 7 ( ( -LRB- 40404 3394 8 areas area NNS 40404 3394 9 horizontally horizontally RB 40404 3394 10 Lined line VBD 40404 3394 11 ) ) -RRB- 40404 3394 12 The the DT 40404 3394 13 texture texture NN 40404 3394 14 of of IN 40404 3394 15 the the DT 40404 3394 16 rock rock NN 40404 3394 17 of of IN 40404 3394 18 bosses boss NNS 40404 3394 19 proves prove VBZ 40404 3394 20 that that IN 40404 3394 21 consolidation consolidation NN 40404 3394 22 proceeded proceed VBD 40404 3394 23 slowly slowly RB 40404 3394 24 and and CC 40404 3394 25 at at IN 40404 3394 26 great great JJ 40404 3394 27 depths depth NNS 40404 3394 28 , , , 40404 3394 29 and and CC 40404 3394 30 it -PRON- PRP 40404 3394 31 is be VBZ 40404 3394 32 only only RB 40404 3394 33 because because IN 40404 3394 34 of of IN 40404 3394 35 vast vast JJ 40404 3394 36 denudation denudation NN 40404 3394 37 that that IN 40404 3394 38 they -PRON- PRP 40404 3394 39 are be VBP 40404 3394 40 now now RB 40404 3394 41 exposed expose VBN 40404 3394 42 to to IN 40404 3394 43 view view VB 40404 3394 44 . . . 40404 3395 1 Bosses boss NNS 40404 3395 2 are be VBP 40404 3395 3 commonly commonly RB 40404 3395 4 harder hard JJR 40404 3395 5 than than IN 40404 3395 6 the the DT 40404 3395 7 rocks rock NNS 40404 3395 8 about about IN 40404 3395 9 them -PRON- PRP 40404 3395 10 , , , 40404 3395 11 and and CC 40404 3395 12 stand stand VB 40404 3395 13 up up RP 40404 3395 14 , , , 40404 3395 15 therefore therefore RB 40404 3395 16 , , , 40404 3395 17 as as IN 40404 3395 18 rounded rounded JJ 40404 3395 19 hills hill NNS 40404 3395 20 and and CC 40404 3395 21 mountainous mountainous JJ 40404 3395 22 ridges ridge NNS 40404 3395 23 long long RB 40404 3395 24 after after IN 40404 3395 25 the the DT 40404 3395 26 surrounding surround VBG 40404 3395 27 country country NN 40404 3395 28 has have VBZ 40404 3395 29 worn wear VBN 40404 3395 30 to to IN 40404 3395 31 a a DT 40404 3395 32 low low JJ 40404 3395 33 plain plain NN 40404 3395 34 ( ( -LRB- 40404 3395 35 Fig fig NN 40404 3395 36 . . . 40404 3396 1 245 245 CD 40404 3396 2 ) ) -RRB- 40404 3396 3 . . . 40404 3397 1 Figure figure NN 40404 3397 2 246 246 CD 40404 3397 3 exhibits exhibit VBZ 40404 3397 4 a a DT 40404 3397 5 few few JJ 40404 3397 6 small small JJ 40404 3397 7 bosses boss NNS 40404 3397 8 of of IN 40404 3397 9 granite granite NN 40404 3397 10 near near IN 40404 3397 11 Baltimore Baltimore NNP 40404 3397 12 as as IN 40404 3397 13 examples example NNS 40404 3397 14 of of IN 40404 3397 15 numerous numerous JJ 40404 3397 16 areas area NNS 40404 3397 17 of of IN 40404 3397 18 igneous igneous JJ 40404 3397 19 rock rock NN 40404 3397 20 within within IN 40404 3397 21 the the DT 40404 3397 22 Piedmont Piedmont NNP 40404 3397 23 Belt Belt NNP 40404 3397 24 which which WDT 40404 3397 25 represent represent VBP 40404 3397 26 bodies body NNS 40404 3397 27 of of IN 40404 3397 28 molten molten JJ 40404 3397 29 rock rock NN 40404 3397 30 which which WDT 40404 3397 31 solidified solidify VBD 40404 3397 32 deep deep RB 40404 3397 33 below below IN 40404 3397 34 the the DT 40404 3397 35 surface surface NN 40404 3397 36 . . . 40404 3398 1 The the DT 40404 3398 2 _ _ NNP 40404 3398 3 Spanish Spanish NNP 40404 3398 4 Peaks Peaks NNP 40404 3398 5 _ _ NNP 40404 3398 6 of of IN 40404 3398 7 southeastern southeastern JJ 40404 3398 8 Colorado Colorado NNP 40404 3398 9 were be VBD 40404 3398 10 formed form VBN 40404 3398 11 by by IN 40404 3398 12 the the DT 40404 3398 13 upthrust upthrust NN 40404 3398 14 of of IN 40404 3398 15 immense immense JJ 40404 3398 16 masses masse 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3399 27 by by IN 40404 3399 28 the the DT 40404 3399 29 rising rise VBG 40404 3399 30 masses masse NNS 40404 3399 31 . . . 40404 3400 1 The the DT 40404 3400 2 adjacent adjacent JJ 40404 3400 3 rocks rock NNS 40404 3400 4 were be VBD 40404 3400 5 altered alter VBN 40404 3400 6 by by IN 40404 3400 7 heat heat NN 40404 3400 8 to to IN 40404 3400 9 a a DT 40404 3400 10 distance distance NN 40404 3400 11 of of IN 40404 3400 12 several several JJ 40404 3400 13 thousand thousand CD 40404 3400 14 feet foot NNS 40404 3400 15 . . . 40404 3401 1 No no DT 40404 3401 2 evidence evidence NN 40404 3401 3 appears appear VBZ 40404 3401 4 that that IN 40404 3401 5 the the DT 40404 3401 6 molten molten JJ 40404 3401 7 rock rock NN 40404 3401 8 ever ever RB 40404 3401 9 reached reach VBD 40404 3401 10 the the DT 40404 3401 11 surface surface NN 40404 3401 12 , , , 40404 3401 13 and and CC 40404 3401 14 if if IN 40404 3401 15 volcanic volcanic JJ 40404 3401 16 eruptions eruption NNS 40404 3401 17 ever ever RB 40404 3401 18 took take VBD 40404 3401 19 place place NN 40404 3401 20 either either CC 40404 3401 21 in in IN 40404 3401 22 lava lava NN 40404 3401 23 flows flow NNS 40404 3401 24 or or CC 40404 3401 25 fragmental fragmental JJ 40404 3401 26 materials material NNS 40404 3401 27 , , , 40404 3401 28 all all DT 40404 3401 29 traces trace NNS 40404 3401 30 of of IN 40404 3401 31 them -PRON- PRP 40404 3401 32 have have VBP 40404 3401 33 been be VBN 40404 3401 34 effaced efface VBN 40404 3401 35 . . . 40404 3402 1 The the DT 40404 3402 2 rock rock NN 40404 3402 3 of of IN 40404 3402 4 the the DT 40404 3402 5 intrusive intrusive JJ 40404 3402 6 masses masse NNS 40404 3402 7 is be VBZ 40404 3402 8 coarsely coarsely RB 40404 3402 9 crystalline crystalline JJ 40404 3402 10 , , , 40404 3402 11 and and CC 40404 3402 12 no no RB 40404 3402 13 doubt doubt RB 40404 3402 14 solidified solidify VBN 40404 3402 15 slowly slowly RB 40404 3402 16 under under IN 40404 3402 17 the the DT 40404 3402 18 pressure pressure NN 40404 3402 19 of of IN 40404 3402 20 vast vast JJ 40404 3402 21 thicknesses thickness NNS 40404 3402 22 of of IN 40404 3402 23 overlying overlie VBG 40404 3402 24 rock rock NN 40404 3402 25 , , , 40404 3402 26 now now RB 40404 3402 27 mostly mostly RB 40404 3402 28 removed remove VBN 40404 3402 29 by by IN 40404 3402 30 erosion erosion NN 40404 3402 31 . . . 40404 3403 1 A a DT 40404 3403 2 magnificent magnificent JJ 40404 3403 3 system system NN 40404 3403 4 of of IN 40404 3403 5 dikes dike NNS 40404 3403 6 radiates radiate NNS 40404 3403 7 from from IN 40404 3403 8 the the DT 40404 3403 9 Peaks Peaks NNPS 40404 3403 10 to to IN 40404 3403 11 a a DT 40404 3403 12 distance distance NN 40404 3403 13 of of IN 40404 3403 14 fifteen fifteen CD 40404 3403 15 miles mile NNS 40404 3403 16 , , , 40404 3403 17 some some DT 40404 3403 18 now now RB 40404 3403 19 being be VBG 40404 3403 20 left leave VBN 40404 3403 21 by by IN 40404 3403 22 long long JJ 40404 3403 23 erosion erosion NN 40404 3403 24 as as IN 40404 3403 25 walls wall NNS 40404 3403 26 a a DT 40404 3403 27 hundred hundred CD 40404 3403 28 feet foot NNS 40404 3403 29 in in IN 40404 3403 30 height height NN 40404 3403 31 ( ( -LRB- 40404 3403 32 Fig fig NN 40404 3403 33 . . . 40404 3404 1 239 239 CD 40404 3404 2 ) ) -RRB- 40404 3404 3 . . . 40404 3405 1 Intrusive intrusive JJ 40404 3405 2 sheets sheet NNS 40404 3405 3 fed feed VBN 40404 3405 4 by by IN 40404 3405 5 the the DT 40404 3405 6 dikes dike NNS 40404 3405 7 penetrate penetrate VB 40404 3405 8 the the DT 40404 3405 9 surrounding surround VBG 40404 3405 10 strata strata NN 40404 3405 11 , , , 40404 3405 12 and and CC 40404 3405 13 their -PRON- PRP$ 40404 3405 14 edges edge NNS 40404 3405 15 are be VBP 40404 3405 16 cut cut VBN 40404 3405 17 by by IN 40404 3405 18 canyons canyon NNS 40404 3405 19 as as RB 40404 3405 20 much much JJ 40404 3405 21 as as IN 40404 3405 22 twenty twenty CD 40404 3405 23 - - HYPH 40404 3405 24 five five CD 40404 3405 25 miles mile NNS 40404 3405 26 from from IN 40404 3405 27 the the DT 40404 3405 28 mountain mountain NN 40404 3405 29 . . . 40404 3406 1 In in IN 40404 3406 2 these these DT 40404 3406 3 strata stratum NNS 40404 3406 4 are be VBP 40404 3406 5 valuable valuable JJ 40404 3406 6 beds bed NNS 40404 3406 7 of of IN 40404 3406 8 lignite lignite NN 40404 3406 9 , , , 40404 3406 10 an an DT 40404 3406 11 imperfect imperfect JJ 40404 3406 12 coal coal NN 40404 3406 13 , , , 40404 3406 14 which which WDT 40404 3406 15 the the DT 40404 3406 16 heat heat NN 40404 3406 17 of of IN 40404 3406 18 dikes dike NNS 40404 3406 19 and and CC 40404 3406 20 sheets sheet NNS 40404 3406 21 has have VBZ 40404 3406 22 changed change VBN 40404 3406 23 to to IN 40404 3406 24 coke coke NNP 40404 3406 25 . . . 40404 3407 1 [ [ -LRB- 40404 3407 2 Illustration illustration NN 40404 3407 3 : : : 40404 3407 4 Fig Fig NNP 40404 3407 5 . . . 40404 3408 1 247 247 CD 40404 3408 2 . . . 40404 3409 1 Section section NN 40404 3409 2 of of IN 40404 3409 3 a a DT 40404 3409 4 Laccolith Laccolith NNP 40404 3409 5 ] ] -RRB- 40404 3409 6 = = VBZ 40404 3409 7 Laccoliths.= Laccoliths.= NNP 40404 3409 8 The the DT 40404 3409 9 laccolith laccolith JJ 40404 3409 10 ( ( -LRB- 40404 3409 11 Greek Greek NNP 40404 3409 12 laccos laccos NNP 40404 3409 13 , , , 40404 3409 14 cistern cistern NN 40404 3409 15 ; ; : 40404 3409 16 lithos lithos NNP 40404 3409 17 , , , 40404 3409 18 stone stone NN 40404 3409 19 ) ) -RRB- 40404 3409 20 is be VBZ 40404 3409 21 a a DT 40404 3409 22 variety variety NN 40404 3409 23 of of IN 40404 3409 24 intrusive intrusive JJ 40404 3409 25 masses masse NNS 40404 3409 26 in in IN 40404 3409 27 which which WDT 40404 3409 28 molten molten JJ 40404 3409 29 rock rock NN 40404 3409 30 has have VBZ 40404 3409 31 spread spread VBN 40404 3409 32 between between IN 40404 3409 33 the the DT 40404 3409 34 strata strata NN 40404 3409 35 , , , 40404 3409 36 and and CC 40404 3409 37 , , , 40404 3409 38 lifting lift VBG 40404 3409 39 the the DT 40404 3409 40 strata strata NN 40404 3409 41 above above IN 40404 3409 42 it -PRON- PRP 40404 3409 43 to to IN 40404 3409 44 a a DT 40404 3409 45 dome dome NN 40404 3409 46 - - HYPH 40404 3409 47 shaped shape VBN 40404 3409 48 form form NN 40404 3409 49 , , , 40404 3409 50 has have VBZ 40404 3409 51 collected collect VBN 40404 3409 52 beneath beneath IN 40404 3409 53 them -PRON- PRP 40404 3409 54 in in IN 40404 3409 55 a a DT 40404 3409 56 lens lens NN 40404 3409 57 - - HYPH 40404 3409 58 shaped shape VBN 40404 3409 59 body body NN 40404 3409 60 with with IN 40404 3409 61 a a DT 40404 3409 62 flat flat JJ 40404 3409 63 base base NN 40404 3409 64 . . . 40404 3410 1 The the DT 40404 3410 2 _ _ NNP 40404 3410 3 Henry Henry NNP 40404 3410 4 Mountains Mountains NNPS 40404 3410 5 _ _ NNP 40404 3410 6 , , , 40404 3410 7 a a DT 40404 3410 8 small small JJ 40404 3410 9 group group NN 40404 3410 10 of of IN 40404 3410 11 detached detach VBN 40404 3410 12 peaks peak NNS 40404 3410 13 in in IN 40404 3410 14 southern southern JJ 40404 3410 15 Utah Utah NNP 40404 3410 16 , , , 40404 3410 17 rise rise VBP 40404 3410 18 from from IN 40404 3410 19 a a DT 40404 3410 20 plateau plateau NN 40404 3410 21 of of IN 40404 3410 22 horizontal horizontal JJ 40404 3410 23 rocks rock NNS 40404 3410 24 . . . 40404 3411 1 Some some DT 40404 3411 2 of of IN 40404 3411 3 the the DT 40404 3411 4 peaks peak NNS 40404 3411 5 are be VBP 40404 3411 6 carved carve VBN 40404 3411 7 wholly wholly RB 40404 3411 8 in in IN 40404 3411 9 separate separate JJ 40404 3411 10 domelike domelike NN 40404 3411 11 uplifts uplift NNS 40404 3411 12 of of IN 40404 3411 13 the the DT 40404 3411 14 strata strata NN 40404 3411 15 of of IN 40404 3411 16 the the DT 40404 3411 17 plateau plateau NN 40404 3411 18 . . . 40404 3412 1 In in IN 40404 3412 2 others other NNS 40404 3412 3 , , , 40404 3412 4 as as IN 40404 3412 5 Mount Mount NNP 40404 3412 6 Hillers Hillers NNP 40404 3412 7 , , , 40404 3412 8 the the DT 40404 3412 9 largest large JJS 40404 3412 10 of of IN 40404 3412 11 the the DT 40404 3412 12 group group NN 40404 3412 13 , , , 40404 3412 14 there there EX 40404 3412 15 is be VBZ 40404 3412 16 exposed expose VBN 40404 3412 17 on on IN 40404 3412 18 the the DT 40404 3412 19 summit summit NN 40404 3412 20 a a DT 40404 3412 21 core core NN 40404 3412 22 of of IN 40404 3412 23 igneous igneous JJ 40404 3412 24 rock rock NN 40404 3412 25 from from IN 40404 3412 26 which which WDT 40404 3412 27 the the DT 40404 3412 28 sedimentary sedimentary JJ 40404 3412 29 rocks rock NNS 40404 3412 30 of of IN 40404 3412 31 the the DT 40404 3412 32 flanks flank NNS 40404 3412 33 dip dip NN 40404 3412 34 steeply steeply RB 40404 3412 35 outward outward RB 40404 3412 36 in in IN 40404 3412 37 all all DT 40404 3412 38 directions direction NNS 40404 3412 39 . . . 40404 3413 1 In in IN 40404 3413 2 still still RB 40404 3413 3 others other NNS 40404 3413 4 erosion erosion NN 40404 3413 5 has have VBZ 40404 3413 6 stripped strip VBN 40404 3413 7 off off IN 40404 3413 8 the the DT 40404 3413 9 covering cover VBG 40404 3413 10 strata strata NN 40404 3413 11 and and CC 40404 3413 12 has have VBZ 40404 3413 13 laid lay VBN 40404 3413 14 bare bare JJ 40404 3413 15 the the DT 40404 3413 16 core core NN 40404 3413 17 to to IN 40404 3413 18 its -PRON- PRP$ 40404 3413 19 base base NN 40404 3413 20 ; ; : 40404 3413 21 and and CC 40404 3413 22 its -PRON- PRP$ 40404 3413 23 shape shape NN 40404 3413 24 is be VBZ 40404 3413 25 here here RB 40404 3413 26 seen see VBN 40404 3413 27 to to TO 40404 3413 28 be be VB 40404 3413 29 that that DT 40404 3413 30 of of IN 40404 3413 31 a a DT 40404 3413 32 plano plano NNP 40404 3413 33 - - HYPH 40404 3413 34 convex convex NNS 40404 3413 35 lens lens NN 40404 3413 36 or or CC 40404 3413 37 a a DT 40404 3413 38 baker baker NN 40404 3413 39 's 's POS 40404 3413 40 bun bun NN 40404 3413 41 , , , 40404 3413 42 its -PRON- PRP$ 40404 3413 43 flat flat JJ 40404 3413 44 base base NN 40404 3413 45 resting rest VBG 40404 3413 46 on on IN 40404 3413 47 the the DT 40404 3413 48 undisturbed undisturbed JJ 40404 3413 49 bedded bed VBN 40404 3413 50 rocks rock NNS 40404 3413 51 beneath beneath RB 40404 3413 52 . . . 40404 3414 1 The the DT 40404 3414 2 structure structure NN 40404 3414 3 of of IN 40404 3414 4 Mount Mount NNP 40404 3414 5 Hillers Hillers NNP 40404 3414 6 is be VBZ 40404 3414 7 shown show VBN 40404 3414 8 in in IN 40404 3414 9 Figure Figure NNP 40404 3414 10 248 248 CD 40404 3414 11 . . . 40404 3415 1 The the DT 40404 3415 2 nucleus nucleus NN 40404 3415 3 of of IN 40404 3415 4 igneous igneous JJ 40404 3415 5 rock rock NN 40404 3415 6 is be VBZ 40404 3415 7 four four CD 40404 3415 8 miles mile NNS 40404 3415 9 in in IN 40404 3415 10 diameter diameter NN 40404 3415 11 and and CC 40404 3415 12 more more JJR 40404 3415 13 than than IN 40404 3415 14 a a DT 40404 3415 15 mile mile NN 40404 3415 16 in in IN 40404 3415 17 depth depth NN 40404 3415 18 . . . 40404 3416 1 [ [ -LRB- 40404 3416 2 Illustration illustration NN 40404 3416 3 : : : 40404 3416 4 Fig Fig NNP 40404 3416 5 . . . 40404 3417 1 248 248 CD 40404 3417 2 . . . 40404 3418 1 Section section NN 40404 3418 2 of of IN 40404 3418 3 Mount Mount NNP 40404 3418 4 Hillers Hillers NNP 40404 3418 5 ] ] -RRB- 40404 3418 6 = = SYM 40404 3418 7 Regional regional JJ 40404 3418 8 intrusions.= intrusions.= CD 40404 3418 9 These these DT 40404 3418 10 vast vast JJ 40404 3418 11 bodies body NNS 40404 3418 12 of of IN 40404 3418 13 igneous igneous JJ 40404 3418 14 rock rock NN 40404 3418 15 , , , 40404 3418 16 which which WDT 40404 3418 17 may may MD 40404 3418 18 reach reach VB 40404 3418 19 hundreds hundred NNS 40404 3418 20 of of IN 40404 3418 21 miles mile NNS 40404 3418 22 in in IN 40404 3418 23 diameter diameter NN 40404 3418 24 , , , 40404 3418 25 differ differ VBP 40404 3418 26 little little JJ 40404 3418 27 from from IN 40404 3418 28 bosses boss NNS 40404 3418 29 except except IN 40404 3418 30 in in IN 40404 3418 31 their -PRON- PRP$ 40404 3418 32 immense immense JJ 40404 3418 33 bulk bulk NN 40404 3418 34 . . . 40404 3419 1 Like like IN 40404 3419 2 bosses boss NNS 40404 3419 3 , , , 40404 3419 4 regional regional JJ 40404 3419 5 intrusions intrusion NNS 40404 3419 6 give give VBP 40404 3419 7 off off RP 40404 3419 8 dikes dike NNS 40404 3419 9 and and CC 40404 3419 10 sheets sheet NNS 40404 3419 11 and and CC 40404 3419 12 greatly greatly RB 40404 3419 13 change change VB 40404 3419 14 the the DT 40404 3419 15 rocks rock NNS 40404 3419 16 about about IN 40404 3419 17 them -PRON- PRP 40404 3419 18 by by IN 40404 3419 19 their -PRON- PRP$ 40404 3419 20 heat heat NN 40404 3419 21 . . . 40404 3420 1 They -PRON- PRP 40404 3420 2 are be VBP 40404 3420 3 now now RB 40404 3420 4 exposed expose VBN 40404 3420 5 to to TO 40404 3420 6 view view VB 40404 3420 7 only only RB 40404 3420 8 because because IN 40404 3420 9 of of IN 40404 3420 10 the the DT 40404 3420 11 profound profound JJ 40404 3420 12 denudation denudation NN 40404 3420 13 which which WDT 40404 3420 14 has have VBZ 40404 3420 15 removed remove VBN 40404 3420 16 the the DT 40404 3420 17 upheaved upheaved JJ 40404 3420 18 dome dome NN 40404 3420 19 of of IN 40404 3420 20 rocks rock NNS 40404 3420 21 beneath beneath IN 40404 3420 22 which which WDT 40404 3420 23 they -PRON- PRP 40404 3420 24 slowly slowly RB 40404 3420 25 cooled cool VBD 40404 3420 26 . . . 40404 3421 1 Such such JJ 40404 3421 2 intrusions intrusion NNS 40404 3421 3 are be VBP 40404 3421 4 accompanied accompany VBN 40404 3421 5 -- -- : 40404 3421 6 whether whether IN 40404 3421 7 as as IN 40404 3421 8 cause cause NN 40404 3421 9 or or CC 40404 3421 10 as as IN 40404 3421 11 effect effect NN 40404 3421 12 is be VBZ 40404 3421 13 still still RB 40404 3421 14 hardly hardly RB 40404 3421 15 known know VBN 40404 3421 16 -- -- : 40404 3421 17 by by IN 40404 3421 18 deformations deformation NNS 40404 3421 19 , , , 40404 3421 20 and and CC 40404 3421 21 their -PRON- PRP$ 40404 3421 22 masses masse NNS 40404 3421 23 of of IN 40404 3421 24 igneous igneous JJ 40404 3421 25 rock rock NN 40404 3421 26 are be VBP 40404 3421 27 thus thus RB 40404 3421 28 found find VBN 40404 3421 29 as as IN 40404 3421 30 the the DT 40404 3421 31 core core NN 40404 3421 32 of of IN 40404 3421 33 many many JJ 40404 3421 34 great great JJ 40404 3421 35 mountain mountain NN 40404 3421 36 ranges range NNS 40404 3421 37 . . . 40404 3422 1 The the DT 40404 3422 2 granitic granitic JJ 40404 3422 3 masses masse NNS 40404 3422 4 of of IN 40404 3422 5 which which WDT 40404 3422 6 the the DT 40404 3422 7 Bitter Bitter NNP 40404 3422 8 Root Root NNP 40404 3422 9 Mountains Mountains NNPS 40404 3422 10 and and CC 40404 3422 11 the the DT 40404 3422 12 Sierra Sierra NNP 40404 3422 13 Nevadas Nevadas NNP 40404 3422 14 have have VBP 40404 3422 15 been be VBN 40404 3422 16 largely largely RB 40404 3422 17 carved carve VBN 40404 3422 18 are be VBP 40404 3422 19 each each DT 40404 3422 20 more more JJR 40404 3422 21 than than IN 40404 3422 22 three three CD 40404 3422 23 hundred hundred CD 40404 3422 24 miles mile NNS 40404 3422 25 in in IN 40404 3422 26 length length NN 40404 3422 27 . . . 40404 3423 1 Immense immense JJ 40404 3423 2 regional regional JJ 40404 3423 3 intrusions intrusion NNS 40404 3423 4 , , , 40404 3423 5 the the DT 40404 3423 6 cores core NNS 40404 3423 7 of of IN 40404 3423 8 once once IN 40404 3423 9 lofty lofty JJ 40404 3423 10 mountain mountain NN 40404 3423 11 ranges range NNS 40404 3423 12 , , , 40404 3423 13 are be VBP 40404 3423 14 found find VBN 40404 3423 15 upon upon IN 40404 3423 16 the the DT 40404 3423 17 Laurentian laurentian JJ 40404 3423 18 peneplain peneplain NN 40404 3423 19 . . . 40404 3424 1 = = NFP 40404 3424 2 Physiographic physiographic JJ 40404 3424 3 effects effect NNS 40404 3424 4 of of IN 40404 3424 5 intrusive intrusive JJ 40404 3424 6 masses.= masses.= NNS 40404 3424 7 We -PRON- PRP 40404 3424 8 have have VBP 40404 3424 9 already already RB 40404 3424 10 seen see VBN 40404 3424 11 examples example NNS 40404 3424 12 of of IN 40404 3424 13 the the DT 40404 3424 14 topographic topographic JJ 40404 3424 15 effects effect NNS 40404 3424 16 of of IN 40404 3424 17 intrusive intrusive JJ 40404 3424 18 masses masse NNS 40404 3424 19 in in IN 40404 3424 20 Mount Mount NNP 40404 3424 21 Hillers Hillers NNP 40404 3424 22 , , , 40404 3424 23 the the DT 40404 3424 24 Spanish Spanish NNP 40404 3424 25 Peaks Peaks NNPS 40404 3424 26 , , , 40404 3424 27 and and CC 40404 3424 28 in in IN 40404 3424 29 the the DT 40404 3424 30 great great JJ 40404 3424 31 mountain mountain NN 40404 3424 32 ranges range NNS 40404 3424 33 mentioned mention VBN 40404 3424 34 in in IN 40404 3424 35 the the DT 40404 3424 36 paragraph paragraph NN 40404 3424 37 on on IN 40404 3424 38 regional regional JJ 40404 3424 39 intrusions intrusion NNS 40404 3424 40 , , , 40404 3424 41 although although IN 40404 3424 42 in in IN 40404 3424 43 the the DT 40404 3424 44 latter latter JJ 40404 3424 45 instances instance NNS 40404 3424 46 these these DT 40404 3424 47 effects effect NNS 40404 3424 48 are be VBP 40404 3424 49 entangled entangle VBN 40404 3424 50 with with IN 40404 3424 51 the the DT 40404 3424 52 effects effect NNS 40404 3424 53 of of IN 40404 3424 54 other other JJ 40404 3424 55 processes process NNS 40404 3424 56 . . . 40404 3425 1 Masses masse NNS 40404 3425 2 of of IN 40404 3425 3 igneous igneous JJ 40404 3425 4 rock rock NN 40404 3425 5 can can MD 40404 3425 6 not not RB 40404 3425 7 be be VB 40404 3425 8 intruded intrude VBN 40404 3425 9 within within IN 40404 3425 10 the the DT 40404 3425 11 crust crust NN 40404 3425 12 without without IN 40404 3425 13 an an DT 40404 3425 14 accompanying accompanying JJ 40404 3425 15 deformation deformation NN 40404 3425 16 on on IN 40404 3425 17 a a DT 40404 3425 18 scale scale NN 40404 3425 19 corresponding correspond VBG 40404 3425 20 to to IN 40404 3425 21 the the DT 40404 3425 22 bulk bulk NN 40404 3425 23 of of IN 40404 3425 24 the the DT 40404 3425 25 intruded intrude VBN 40404 3425 26 mass mass NN 40404 3425 27 . . . 40404 3426 1 The the DT 40404 3426 2 overlying overlying NN 40404 3426 3 strata strata NN 40404 3426 4 are be VBP 40404 3426 5 arched arch VBN 40404 3426 6 into into IN 40404 3426 7 hills hill NNS 40404 3426 8 or or CC 40404 3426 9 mountains mountain NNS 40404 3426 10 , , , 40404 3426 11 or or CC 40404 3426 12 , , , 40404 3426 13 if if IN 40404 3426 14 the the DT 40404 3426 15 molten molten JJ 40404 3426 16 material material NN 40404 3426 17 is be VBZ 40404 3426 18 of of IN 40404 3426 19 great great JJ 40404 3426 20 extent extent NN 40404 3426 21 , , , 40404 3426 22 the the DT 40404 3426 23 strata strata NN 40404 3426 24 may may MD 40404 3426 25 conceivably conceivably RB 40404 3426 26 be be VB 40404 3426 27 floated float VBN 40404 3426 28 upward upward RB 40404 3426 29 to to IN 40404 3426 30 the the DT 40404 3426 31 height height NN 40404 3426 32 of of IN 40404 3426 33 a a DT 40404 3426 34 plateau plateau NN 40404 3426 35 . . . 40404 3427 1 We -PRON- PRP 40404 3427 2 may may MD 40404 3427 3 suppose suppose VB 40404 3427 4 that that IN 40404 3427 5 the the DT 40404 3427 6 transference transference NN 40404 3427 7 of of IN 40404 3427 8 molten molten JJ 40404 3427 9 matter matter NN 40404 3427 10 from from IN 40404 3427 11 one one CD 40404 3427 12 region region NN 40404 3427 13 to to IN 40404 3427 14 another another DT 40404 3427 15 may may MD 40404 3427 16 be be VB 40404 3427 17 among among IN 40404 3427 18 the the DT 40404 3427 19 causes cause NNS 40404 3427 20 of of IN 40404 3427 21 slow slow JJ 40404 3427 22 subsidences subsidence NNS 40404 3427 23 and and CC 40404 3427 24 elevations elevation NNS 40404 3427 25 . . . 40404 3428 1 Intrusions intrusion NNS 40404 3428 2 give give VBP 40404 3428 3 rise rise NN 40404 3428 4 to to IN 40404 3428 5 fissures fissure NNS 40404 3428 6 , , , 40404 3428 7 dikes dike NNS 40404 3428 8 , , , 40404 3428 9 and and CC 40404 3428 10 intrusive intrusive JJ 40404 3428 11 sheets sheet NNS 40404 3428 12 , , , 40404 3428 13 and and CC 40404 3428 14 these these DT 40404 3428 15 dislocations dislocation NNS 40404 3428 16 can can MD 40404 3428 17 not not RB 40404 3428 18 fail fail VB 40404 3428 19 to to TO 40404 3428 20 produce produce VB 40404 3428 21 earthquakes earthquake NNS 40404 3428 22 . . . 40404 3429 1 Where where WRB 40404 3429 2 intrusive intrusive JJ 40404 3429 3 masses masse NNS 40404 3429 4 open open VBP 40404 3429 5 communication communication NN 40404 3429 6 with with IN 40404 3429 7 the the DT 40404 3429 8 surface surface NN 40404 3429 9 , , , 40404 3429 10 volcanoes volcano NNS 40404 3429 11 are be VBP 40404 3429 12 established establish VBN 40404 3429 13 or or CC 40404 3429 14 fissure fissure NN 40404 3429 15 eruptions eruption NNS 40404 3429 16 occur occur VBP 40404 3429 17 such such JJ 40404 3429 18 as as IN 40404 3429 19 those those DT 40404 3429 20 of of IN 40404 3429 21 Iceland Iceland NNP 40404 3429 22 . . . 40404 3430 1 The the DT 40404 3430 2 Intrusive intrusive JJ 40404 3430 3 Rocks rock NNS 40404 3430 4 The the DT 40404 3430 5 igneous igneous JJ 40404 3430 6 rocks rock NNS 40404 3430 7 are be VBP 40404 3430 8 divided divide VBN 40404 3430 9 into into IN 40404 3430 10 two two CD 40404 3430 11 general general NN 40404 3430 12 classes,--the classes,--the NNP 40404 3430 13 _ _ NNP 40404 3430 14 volcanic volcanic JJ 40404 3430 15 _ _ NNP 40404 3430 16 or or CC 40404 3430 17 _ _ NNP 40404 3430 18 eruptive eruptive JJ 40404 3430 19 _ _ NNP 40404 3430 20 rocks rock NNS 40404 3430 21 , , , 40404 3430 22 which which WDT 40404 3430 23 have have VBP 40404 3430 24 been be VBN 40404 3430 25 outpoured outpoure VBN 40404 3430 26 in in IN 40404 3430 27 open open JJ 40404 3430 28 air air NN 40404 3430 29 or or CC 40404 3430 30 on on IN 40404 3430 31 the the DT 40404 3430 32 floor floor NN 40404 3430 33 of of IN 40404 3430 34 the the DT 40404 3430 35 sea sea NN 40404 3430 36 , , , 40404 3430 37 and and CC 40404 3430 38 the the DT 40404 3430 39 _ _ NNP 40404 3430 40 intrusive intrusive JJ 40404 3430 41 _ _ NNP 40404 3430 42 rocks rock NNS 40404 3430 43 , , , 40404 3430 44 which which WDT 40404 3430 45 have have VBP 40404 3430 46 been be VBN 40404 3430 47 intruded intrude VBN 40404 3430 48 within within IN 40404 3430 49 the the DT 40404 3430 50 rocks rock NNS 40404 3430 51 of of IN 40404 3430 52 the the DT 40404 3430 53 crust crust NN 40404 3430 54 and and CC 40404 3430 55 have have VBP 40404 3430 56 solidified solidify VBN 40404 3430 57 below below IN 40404 3430 58 the the DT 40404 3430 59 surface surface NN 40404 3430 60 . . . 40404 3431 1 The the DT 40404 3431 2 two two CD 40404 3431 3 classes class NNS 40404 3431 4 are be VBP 40404 3431 5 alike alike RB 40404 3431 6 in in IN 40404 3431 7 chemical chemical JJ 40404 3431 8 composition composition NN 40404 3431 9 and and CC 40404 3431 10 may may MD 40404 3431 11 be be VB 40404 3431 12 divided divide VBN 40404 3431 13 into into IN 40404 3431 14 acidic acidic JJ 40404 3431 15 and and CC 40404 3431 16 basic basic JJ 40404 3431 17 groups group NNS 40404 3431 18 . . . 40404 3432 1 In in IN 40404 3432 2 texture texture NN 40404 3432 3 the the DT 40404 3432 4 intrusive intrusive JJ 40404 3432 5 rocks rock NNS 40404 3432 6 differ differ VBP 40404 3432 7 from from IN 40404 3432 8 the the DT 40404 3432 9 volcanic volcanic JJ 40404 3432 10 rocks rock NNS 40404 3432 11 because because IN 40404 3432 12 of of IN 40404 3432 13 the the DT 40404 3432 14 different different JJ 40404 3432 15 conditions condition NNS 40404 3432 16 under under IN 40404 3432 17 which which WDT 40404 3432 18 they -PRON- PRP 40404 3432 19 have have VBP 40404 3432 20 solidified solidify VBN 40404 3432 21 . . . 40404 3433 1 They -PRON- PRP 40404 3433 2 cooled cool VBD 40404 3433 3 far far RB 40404 3433 4 more more RBR 40404 3433 5 slowly slowly RB 40404 3433 6 beneath beneath IN 40404 3433 7 the the DT 40404 3433 8 cover cover NN 40404 3433 9 of of IN 40404 3433 10 the the DT 40404 3433 11 rocks rock NNS 40404 3433 12 into into IN 40404 3433 13 which which WDT 40404 3433 14 they -PRON- PRP 40404 3433 15 were be VBD 40404 3433 16 pressed press VBN 40404 3433 17 than than IN 40404 3433 18 is be VBZ 40404 3433 19 permitted permit VBN 40404 3433 20 to to TO 40404 3433 21 lava lava VB 40404 3433 22 flows flow NNS 40404 3433 23 in in IN 40404 3433 24 open open JJ 40404 3433 25 air air NN 40404 3433 26 . . . 40404 3434 1 Their -PRON- PRP$ 40404 3434 2 constituent constituent NN 40404 3434 3 minerals mineral NNS 40404 3434 4 had have VBD 40404 3434 5 ample ample JJ 40404 3434 6 opportunity opportunity NN 40404 3434 7 to to TO 40404 3434 8 sort sort VB 40404 3434 9 themselves -PRON- PRP 40404 3434 10 and and CC 40404 3434 11 crystallize crystallize VB 40404 3434 12 from from IN 40404 3434 13 the the DT 40404 3434 14 fluid fluid JJ 40404 3434 15 mixture mixture NN 40404 3434 16 , , , 40404 3434 17 and and CC 40404 3434 18 none none NN 40404 3434 19 of of IN 40404 3434 20 that that DT 40404 3434 21 mixture mixture NN 40404 3434 22 was be VBD 40404 3434 23 left leave VBN 40404 3434 24 to to TO 40404 3434 25 congeal congeal VB 40404 3434 26 as as IN 40404 3434 27 a a DT 40404 3434 28 glassy glassy NN 40404 3434 29 paste paste NN 40404 3434 30 . . . 40404 3435 1 They -PRON- PRP 40404 3435 2 consolidated consolidate VBD 40404 3435 3 also also RB 40404 3435 4 under under IN 40404 3435 5 pressure pressure NN 40404 3435 6 . . . 40404 3436 1 They -PRON- PRP 40404 3436 2 are be VBP 40404 3436 3 never never RB 40404 3436 4 scoriaceous scoriaceous JJ 40404 3436 5 , , , 40404 3436 6 for for IN 40404 3436 7 the the DT 40404 3436 8 steam steam NN 40404 3436 9 with with IN 40404 3436 10 which which WDT 40404 3436 11 they -PRON- PRP 40404 3436 12 were be VBD 40404 3436 13 charged charge VBN 40404 3436 14 was be VBD 40404 3436 15 not not RB 40404 3436 16 allowed allow VBN 40404 3436 17 to to TO 40404 3436 18 expand expand VB 40404 3436 19 and and CC 40404 3436 20 distend distend VB 40404 3436 21 them -PRON- PRP 40404 3436 22 with with IN 40404 3436 23 steam steam NN 40404 3436 24 blebs blebs NN 40404 3436 25 . . . 40404 3437 1 In in IN 40404 3437 2 the the DT 40404 3437 3 rocks rock NNS 40404 3437 4 of of IN 40404 3437 5 the the DT 40404 3437 6 larger large JJR 40404 3437 7 intrusive intrusive JJ 40404 3437 8 masses masse NNS 40404 3437 9 one one PRP 40404 3437 10 may may MD 40404 3437 11 see see VB 40404 3437 12 with with IN 40404 3437 13 a a DT 40404 3437 14 powerful powerful JJ 40404 3437 15 microscope microscope NN 40404 3437 16 exceedingly exceedingly RB 40404 3437 17 minute minute JJ 40404 3437 18 cavities cavity NNS 40404 3437 19 , , , 40404 3437 20 to to TO 40404 3437 21 be be VB 40404 3437 22 counted count VBN 40404 3437 23 by by IN 40404 3437 24 many many JJ 40404 3437 25 millions million NNS 40404 3437 26 to to IN 40404 3437 27 the the DT 40404 3437 28 cubic cubic JJ 40404 3437 29 inch inch NN 40404 3437 30 , , , 40404 3437 31 in in IN 40404 3437 32 which which WDT 40404 3437 33 the the DT 40404 3437 34 gaseous gaseous JJ 40404 3437 35 water water NN 40404 3437 36 which which WDT 40404 3437 37 the the DT 40404 3437 38 mass mass NN 40404 3437 39 contained contain VBN 40404 3437 40 was be VBD 40404 3437 41 held hold VBN 40404 3437 42 imprisoned imprison VBN 40404 3437 43 under under IN 40404 3437 44 the the DT 40404 3437 45 immense immense JJ 40404 3437 46 pressure pressure NN 40404 3437 47 of of IN 40404 3437 48 the the DT 40404 3437 49 overlying overlying NN 40404 3437 50 rocks rock NNS 40404 3437 51 . . . 40404 3438 1 Naturally naturally RB 40404 3438 2 these these DT 40404 3438 3 characteristics characteristic NNS 40404 3438 4 are be VBP 40404 3438 5 best best RB 40404 3438 6 developed develop VBN 40404 3438 7 in in IN 40404 3438 8 the the DT 40404 3438 9 intrusives intrusive NNS 40404 3438 10 which which WDT 40404 3438 11 cooled cool VBD 40404 3438 12 most most RBS 40404 3438 13 slowly slowly RB 40404 3438 14 , , , 40404 3438 15 i.e. i.e. FW 40404 3439 1 in in IN 40404 3439 2 the the DT 40404 3439 3 deepest deepest RBS 40404 3439 4 - - HYPH 40404 3439 5 seated seat VBN 40404 3439 6 and and CC 40404 3439 7 largest large JJS 40404 3439 8 masses masse NNS 40404 3439 9 ; ; : 40404 3439 10 while while IN 40404 3439 11 in in IN 40404 3439 12 those those DT 40404 3439 13 which which WDT 40404 3439 14 cooled cool VBD 40404 3439 15 more more RBR 40404 3439 16 rapidly rapidly RB 40404 3439 17 , , , 40404 3439 18 as as IN 40404 3439 19 in in IN 40404 3439 20 dikes dike NNS 40404 3439 21 and and CC 40404 3439 22 sheets sheet NNS 40404 3439 23 , , , 40404 3439 24 we -PRON- PRP 40404 3439 25 find find VBP 40404 3439 26 gradations gradation NNS 40404 3439 27 approaching approach VBG 40404 3439 28 the the DT 40404 3439 29 texture texture NN 40404 3439 30 of of IN 40404 3439 31 surface surface NN 40404 3439 32 flows flow NNS 40404 3439 33 . . . 40404 3440 1 = = NFP 40404 3440 2 Varieties variety NNS 40404 3440 3 of of IN 40404 3440 4 the the DT 40404 3440 5 intrusive intrusive JJ 40404 3440 6 rocks.= rocks.= NN 40404 3440 7 We -PRON- PRP 40404 3440 8 will will MD 40404 3440 9 now now RB 40404 3440 10 describe describe VB 40404 3440 11 a a DT 40404 3440 12 few few JJ 40404 3440 13 of of IN 40404 3440 14 the the DT 40404 3440 15 varieties variety NNS 40404 3440 16 of of IN 40404 3440 17 rocks rock NNS 40404 3440 18 of of IN 40404 3440 19 deep deep JJ 40404 3440 20 - - HYPH 40404 3440 21 seated seat VBN 40404 3440 22 intrusions intrusion NNS 40404 3440 23 . . . 40404 3441 1 All all DT 40404 3441 2 are be VBP 40404 3441 3 even even RB 40404 3441 4 grained grain VBN 40404 3441 5 , , , 40404 3441 6 consisting consist VBG 40404 3441 7 of of IN 40404 3441 8 a a DT 40404 3441 9 mass mass NN 40404 3441 10 of of IN 40404 3441 11 crystalline crystalline JJ 40404 3441 12 grains grain NNS 40404 3441 13 formed form VBN 40404 3441 14 during during IN 40404 3441 15 one one CD 40404 3441 16 continuous continuous JJ 40404 3441 17 stage stage NN 40404 3441 18 of of IN 40404 3441 19 solidification solidification NN 40404 3441 20 , , , 40404 3441 21 and and CC 40404 3441 22 no no DT 40404 3441 23 porphyritic porphyritic JJ 40404 3441 24 crystals crystal NNS 40404 3441 25 appear appear VBP 40404 3441 26 as as IN 40404 3441 27 in in IN 40404 3441 28 lavas lavas NNP 40404 3441 29 . . . 40404 3442 1 _ _ NNP 40404 3442 2 Granite Granite NNP 40404 3442 3 _ _ NNP 40404 3442 4 , , , 40404 3442 5 as as IN 40404 3442 6 we -PRON- PRP 40404 3442 7 have have VBP 40404 3442 8 learned learn VBN 40404 3442 9 already already RB 40404 3442 10 , , , 40404 3442 11 is be VBZ 40404 3442 12 composed compose VBN 40404 3442 13 of of IN 40404 3442 14 three three CD 40404 3442 15 minerals,--quartz minerals,--quartz NNP 40404 3442 16 , , , 40404 3442 17 feldspar feldspar NNP 40404 3442 18 , , , 40404 3442 19 and and CC 40404 3442 20 mica mica NNP 40404 3442 21 . . . 40404 3443 1 According accord VBG 40404 3443 2 to to IN 40404 3443 3 the the DT 40404 3443 4 color color NN 40404 3443 5 of of IN 40404 3443 6 the the DT 40404 3443 7 feldspar feldspar NN 40404 3443 8 the the DT 40404 3443 9 rock rock NN 40404 3443 10 may may MD 40404 3443 11 be be VB 40404 3443 12 red red JJ 40404 3443 13 , , , 40404 3443 14 or or CC 40404 3443 15 pink pink JJ 40404 3443 16 , , , 40404 3443 17 or or CC 40404 3443 18 gray gray JJ 40404 3443 19 . . . 40404 3444 1 Hornblende Hornblende NNP 40404 3444 2 -- -- : 40404 3444 3 a a DT 40404 3444 4 black black JJ 40404 3444 5 or or CC 40404 3444 6 dark dark JJ 40404 3444 7 green green JJ 40404 3444 8 mineral mineral NN 40404 3444 9 , , , 40404 3444 10 an an DT 40404 3444 11 iron iron NN 40404 3444 12 - - HYPH 40404 3444 13 magnesian magnesian JJ 40404 3444 14 silicate silicate NN 40404 3444 15 , , , 40404 3444 16 about about RB 40404 3444 17 as as RB 40404 3444 18 hard hard JJ 40404 3444 19 as as IN 40404 3444 20 feldspar feldspar NN 40404 3444 21 -- -- : 40404 3444 22 is be VBZ 40404 3444 23 sometimes sometimes RB 40404 3444 24 found find VBN 40404 3444 25 as as IN 40404 3444 26 a a DT 40404 3444 27 fourth fourth JJ 40404 3444 28 constituent constituent NN 40404 3444 29 , , , 40404 3444 30 and and CC 40404 3444 31 the the DT 40404 3444 32 rock rock NN 40404 3444 33 is be VBZ 40404 3444 34 then then RB 40404 3444 35 known know VBN 40404 3444 36 as as IN 40404 3444 37 _ _ NNP 40404 3444 38 hornblendic hornblendic JJ 40404 3444 39 granite granite NN 40404 3444 40 _ _ NNP 40404 3444 41 . . . 40404 3445 1 Granite Granite NNP 40404 3445 2 is be VBZ 40404 3445 3 an an DT 40404 3445 4 acidic acidic JJ 40404 3445 5 rock rock NN 40404 3445 6 corresponding correspond VBG 40404 3445 7 to to TO 40404 3445 8 rhyolite rhyolite VB 40404 3445 9 in in IN 40404 3445 10 chemical chemical JJ 40404 3445 11 composition composition NN 40404 3445 12 . . . 40404 3446 1 We -PRON- PRP 40404 3446 2 may may MD 40404 3446 3 believe believe VB 40404 3446 4 that that IN 40404 3446 5 the the DT 40404 3446 6 same same JJ 40404 3446 7 molten molten JJ 40404 3446 8 mass mass NN 40404 3446 9 which which WDT 40404 3446 10 supplies supply VBZ 40404 3446 11 this this DT 40404 3446 12 acidic acidic JJ 40404 3446 13 lava lava NN 40404 3446 14 in in IN 40404 3446 15 surface surface NN 40404 3446 16 flows flow VBZ 40404 3446 17 solidifies solidifie NNS 40404 3446 18 as as IN 40404 3446 19 granite granite NN 40404 3446 20 deep deep RB 40404 3446 21 below below IN 40404 3446 22 ground ground NN 40404 3446 23 in in IN 40404 3446 24 the the DT 40404 3446 25 volcanic volcanic JJ 40404 3446 26 reservoir reservoir NN 40404 3446 27 . . . 40404 3447 1 _ _ NNP 40404 3447 2 Syenite Syenite NNP 40404 3447 3 _ _ NNP 40404 3447 4 , , , 40404 3447 5 composed compose VBN 40404 3447 6 of of IN 40404 3447 7 feldspar feldspar NNP 40404 3447 8 and and CC 40404 3447 9 mica mica NNP 40404 3447 10 , , , 40404 3447 11 has have VBZ 40404 3447 12 consolidated consolidate VBN 40404 3447 13 from from IN 40404 3447 14 a a DT 40404 3447 15 less less RBR 40404 3447 16 siliceous siliceous JJ 40404 3447 17 mixture mixture NN 40404 3447 18 than than IN 40404 3447 19 has have VBZ 40404 3447 20 granite granite NN 40404 3447 21 . . . 40404 3448 1 _ _ NNP 40404 3448 2 Diorite Diorite NNP 40404 3448 3 _ _ NNP 40404 3448 4 , , , 40404 3448 5 still still RB 40404 3448 6 less less RBR 40404 3448 7 siliceous siliceous JJ 40404 3448 8 , , , 40404 3448 9 is be VBZ 40404 3448 10 composed compose VBN 40404 3448 11 of of IN 40404 3448 12 hornblende hornblende NN 40404 3448 13 and and CC 40404 3448 14 feldspar,--the feldspar,--the DT 40404 3448 15 latter latter JJ 40404 3448 16 mineral mineral NN 40404 3448 17 being be VBG 40404 3448 18 of of IN 40404 3448 19 different different JJ 40404 3448 20 variety variety NN 40404 3448 21 from from IN 40404 3448 22 the the DT 40404 3448 23 feldspar feldspar NN 40404 3448 24 of of IN 40404 3448 25 granite granite NN 40404 3448 26 and and CC 40404 3448 27 syenite syenite NN 40404 3448 28 . . . 40404 3449 1 _ _ NNP 40404 3449 2 Gabbro Gabbro NNP 40404 3449 3 _ _ NNP 40404 3449 4 , , , 40404 3449 5 a a DT 40404 3449 6 typical typical JJ 40404 3449 7 basic basic JJ 40404 3449 8 rock rock NN 40404 3449 9 , , , 40404 3449 10 corresponds correspond VBZ 40404 3449 11 to to TO 40404 3449 12 basalt basalt VB 40404 3449 13 in in IN 40404 3449 14 chemical chemical JJ 40404 3449 15 composition composition NN 40404 3449 16 . . . 40404 3450 1 It -PRON- PRP 40404 3450 2 is be VBZ 40404 3450 3 a a DT 40404 3450 4 dark dark JJ 40404 3450 5 , , , 40404 3450 6 heavy heavy JJ 40404 3450 7 , , , 40404 3450 8 coarsely coarsely RB 40404 3450 9 crystalline crystalline JJ 40404 3450 10 aggregate aggregate NN 40404 3450 11 of of IN 40404 3450 12 feldspar feldspar NN 40404 3450 13 and and CC 40404 3450 14 _ _ NNP 40404 3450 15 augite augite NNP 40404 3450 16 _ _ NNP 40404 3450 17 ( ( -LRB- 40404 3450 18 a a DT 40404 3450 19 dark dark JJ 40404 3450 20 mineral mineral NN 40404 3450 21 allied ally VBN 40404 3450 22 to to IN 40404 3450 23 hornblende hornblende NNP 40404 3450 24 ) ) -RRB- 40404 3450 25 . . . 40404 3451 1 It -PRON- PRP 40404 3451 2 often often RB 40404 3451 3 contains contain VBZ 40404 3451 4 _ _ NNP 40404 3451 5 magnetite magnetite JJ 40404 3451 6 _ _ NNP 40404 3451 7 ( ( -LRB- 40404 3451 8 the the DT 40404 3451 9 magnetic magnetic JJ 40404 3451 10 black black JJ 40404 3451 11 oxide oxide NN 40404 3451 12 of of IN 40404 3451 13 iron iron NN 40404 3451 14 ) ) -RRB- 40404 3451 15 and and CC 40404 3451 16 _ _ NNP 40404 3451 17 olivine olivine NN 40404 3451 18 _ _ NNP 40404 3451 19 ( ( -LRB- 40404 3451 20 a a DT 40404 3451 21 greenish greenish JJ 40404 3451 22 magnesian magnesian JJ 40404 3451 23 silicate silicate NN 40404 3451 24 ) ) -RRB- 40404 3451 25 . . . 40404 3452 1 In in IN 40404 3452 2 the the DT 40404 3452 3 northern northern JJ 40404 3452 4 states state NNS 40404 3452 5 all all PDT 40404 3452 6 these these DT 40404 3452 7 types type NNS 40404 3452 8 , , , 40404 3452 9 and and CC 40404 3452 10 many many JJ 40404 3452 11 others other NNS 40404 3452 12 also also RB 40404 3452 13 of of IN 40404 3452 14 the the DT 40404 3452 15 vast vast JJ 40404 3452 16 number number NN 40404 3452 17 of of IN 40404 3452 18 varieties variety NNS 40404 3452 19 of of IN 40404 3452 20 intrusive intrusive JJ 40404 3452 21 rocks rock NNS 40404 3452 22 , , , 40404 3452 23 can can MD 40404 3452 24 be be VB 40404 3452 25 found find VBN 40404 3452 26 among among IN 40404 3452 27 the the DT 40404 3452 28 rocks rock NNS 40404 3452 29 of of IN 40404 3452 30 the the DT 40404 3452 31 drift drift NN 40404 3452 32 brought bring VBN 40404 3452 33 from from IN 40404 3452 34 the the DT 40404 3452 35 areas area NNS 40404 3452 36 of of IN 40404 3452 37 igneous igneous JJ 40404 3452 38 rock rock NN 40404 3452 39 in in IN 40404 3452 40 Canada Canada NNP 40404 3452 41 and and CC 40404 3452 42 the the DT 40404 3452 43 states state NNS 40404 3452 44 of of IN 40404 3452 45 our -PRON- PRP$ 40404 3452 46 northern northern JJ 40404 3452 47 border border NN 40404 3452 48 . . . 40404 3453 1 [ [ -LRB- 40404 3453 2 Illustration illustration NN 40404 3453 3 : : : 40404 3453 4 Fig Fig NNP 40404 3453 5 . . . 40404 3454 1 249 249 CD 40404 3454 2 . . . 40404 3455 1 Ground Ground NNP 40404 3455 2 Plan Plan NNP 40404 3455 3 of of IN 40404 3455 4 Dikes Dikes NNP 40404 3455 5 in in IN 40404 3455 6 Granite Granite NNP 40404 3455 7 . . . 40404 3456 1 ( ( -LRB- 40404 3456 2 Scale scale NN 40404 3456 3 80 80 CD 40404 3456 4 feet foot NNS 40404 3456 5 to to IN 40404 3456 6 the the DT 40404 3456 7 inch inch NN 40404 3456 8 ) ) -RRB- 40404 3456 9 What what WP 40404 3456 10 is be VBZ 40404 3456 11 the the DT 40404 3456 12 relative relative JJ 40404 3456 13 age age NN 40404 3456 14 of of IN 40404 3456 15 the the DT 40404 3456 16 dikes dike NNS 40404 3456 17 _ _ NNP 40404 3456 18 aa aa NNP 40404 3456 19 _ _ NNP 40404 3456 20 , , , 40404 3456 21 _ _ NNP 40404 3456 22 bb bb NNP 40404 3456 23 _ _ NNP 40404 3456 24 , , , 40404 3456 25 and and CC 40404 3456 26 _ _ NNP 40404 3456 27 cc cc NNP 40404 3456 28 _ _ NNP 40404 3456 29 ? ? . 40404 3456 30 ] ] -RRB- 40404 3457 1 [ [ -LRB- 40404 3457 2 Illustration illustration NN 40404 3457 3 : : : 40404 3457 4 Fig Fig NNP 40404 3457 5 . . . 40404 3458 1 250 250 CD 40404 3458 2 . . . 40404 3459 1 _ _ NNP 40404 3459 2 A A NNP 40404 3459 3 _ _ NNP 40404 3459 4 and and CC 40404 3459 5 _ _ NNP 40404 3459 6 B B NNP 40404 3459 7 _ _ NNP 40404 3459 8 . . . 40404 3460 1 Mountains mountain NNS 40404 3460 2 of of IN 40404 3460 3 coarsely coarsely RB 40404 3460 4 Crystalline crystalline JJ 40404 3460 5 Igneous Igneous NNP 40404 3460 6 _ _ NNP 40404 3460 7 i i PRP 40404 3460 8 _ _ NNP 40404 3460 9 , , , 40404 3460 10 surrounded surround VBN 40404 3460 11 by by IN 40404 3460 12 Sedimentary Sedimentary NNP 40404 3460 13 Strata Strata NNP 40404 3460 14 _ _ NNP 40404 3460 15 s s NNP 40404 3460 16 _ _ NNP 40404 3460 17 and and CC 40404 3460 18 _ _ NNP 40404 3460 19 s s NNP 40404 3460 20 ´ ´ CD 40404 3460 21 _ _ NNP 40404 3460 22 Copy Copy NNP 40404 3460 23 each each DT 40404 3460 24 diagram diagram NN 40404 3460 25 and and CC 40404 3460 26 complete complete VB 40404 3460 27 it -PRON- PRP 40404 3460 28 , , , 40404 3460 29 so so IN 40404 3460 30 as as IN 40404 3460 31 to to TO 40404 3460 32 show show VB 40404 3460 33 whether whether IN 40404 3460 34 the the DT 40404 3460 35 mass mass NN 40404 3460 36 of of IN 40404 3460 37 igneous igneous JJ 40404 3460 38 rock rock NN 40404 3460 39 is be VBZ 40404 3460 40 a a DT 40404 3460 41 volcanic volcanic JJ 40404 3460 42 neck neck NN 40404 3460 43 , , , 40404 3460 44 a a DT 40404 3460 45 boss boss NN 40404 3460 46 , , , 40404 3460 47 or or CC 40404 3460 48 a a DT 40404 3460 49 laccolith laccolith NN 40404 3460 50 ] ] -RRB- 40404 3460 51 = = NFP 40404 3460 52 Summary.= Summary.= NNS 40404 3460 53 The the DT 40404 3460 54 records record NNS 40404 3460 55 of of IN 40404 3460 56 geology geology NN 40404 3460 57 prove prove VBP 40404 3460 58 that that IN 40404 3460 59 since since IN 40404 3460 60 the the DT 40404 3460 61 earliest early JJS 40404 3460 62 of of IN 40404 3460 63 their -PRON- PRP$ 40404 3460 64 annals annal NNS 40404 3460 65 tremendous tremendous JJ 40404 3460 66 forces force NNS 40404 3460 67 have have VBP 40404 3460 68 been be VBN 40404 3460 69 active active JJ 40404 3460 70 in in IN 40404 3460 71 the the DT 40404 3460 72 earth earth NN 40404 3460 73 . . . 40404 3461 1 In in IN 40404 3461 2 all all PDT 40404 3461 3 the the DT 40404 3461 4 past past NN 40404 3461 5 , , , 40404 3461 6 under under IN 40404 3461 7 pressures pressure NNS 40404 3461 8 inconceivably inconceivably RB 40404 3461 9 great great JJ 40404 3461 10 , , , 40404 3461 11 molten molten JJ 40404 3461 12 rock rock NN 40404 3461 13 has have VBZ 40404 3461 14 been be VBN 40404 3461 15 driven drive VBN 40404 3461 16 upward upward RB 40404 3461 17 into into IN 40404 3461 18 the the DT 40404 3461 19 rocks rock NNS 40404 3461 20 of of IN 40404 3461 21 the the DT 40404 3461 22 crust crust NN 40404 3461 23 . . . 40404 3462 1 It -PRON- PRP 40404 3462 2 has have VBZ 40404 3462 3 squeezed squeeze VBN 40404 3462 4 into into IN 40404 3462 5 fissures fissure NNS 40404 3462 6 forming form VBG 40404 3462 7 dikes dike NNS 40404 3462 8 ; ; : 40404 3462 9 it -PRON- PRP 40404 3462 10 has have VBZ 40404 3462 11 burrowed burrow VBN 40404 3462 12 among among IN 40404 3462 13 the the DT 40404 3462 14 strata strata NN 40404 3462 15 as as IN 40404 3462 16 intrusive intrusive JJ 40404 3462 17 sheets sheet NNS 40404 3462 18 ; ; : 40404 3462 19 it -PRON- PRP 40404 3462 20 has have VBZ 40404 3462 21 melted melt VBN 40404 3462 22 the the DT 40404 3462 23 rocks rock NNS 40404 3462 24 away away RB 40404 3462 25 or or CC 40404 3462 26 lifted lift VBD 40404 3462 27 the the DT 40404 3462 28 overlying overlying NN 40404 3462 29 strata strata NN 40404 3462 30 , , , 40404 3462 31 filling fill VBG 40404 3462 32 the the DT 40404 3462 33 chambers chamber NNS 40404 3462 34 which which WDT 40404 3462 35 it -PRON- PRP 40404 3462 36 has have VBZ 40404 3462 37 made make VBN 40404 3462 38 with with IN 40404 3462 39 intrusive intrusive JJ 40404 3462 40 masses masse NNS 40404 3462 41 . . . 40404 3463 1 During during IN 40404 3463 2 all all DT 40404 3463 3 geological geological JJ 40404 3463 4 ages age NNS 40404 3463 5 molten molten JJ 40404 3463 6 rock rock NNP 40404 3463 7 has have VBZ 40404 3463 8 found find VBN 40404 3463 9 way way NN 40404 3463 10 to to IN 40404 3463 11 the the DT 40404 3463 12 surface surface NN 40404 3463 13 , , , 40404 3463 14 and and CC 40404 3463 15 volcanoes volcano NNS 40404 3463 16 have have VBP 40404 3463 17 darkened darken VBN 40404 3463 18 the the DT 40404 3463 19 sky sky NN 40404 3463 20 with with IN 40404 3463 21 clouds cloud NNS 40404 3463 22 of of IN 40404 3463 23 ashes ashe NNS 40404 3463 24 and and CC 40404 3463 25 poured pour VBD 40404 3463 26 streams stream NNS 40404 3463 27 of of IN 40404 3463 28 glowing glowing JJ 40404 3463 29 lava lava NN 40404 3463 30 down down RP 40404 3463 31 their -PRON- PRP$ 40404 3463 32 sides side NNS 40404 3463 33 . . . 40404 3464 1 The the DT 40404 3464 2 older old JJR 40404 3464 3 strata,--the strata,--the DT 40404 3464 4 strata strata NN 40404 3464 5 which which WDT 40404 3464 6 have have VBP 40404 3464 7 been be VBN 40404 3464 8 most most RBS 40404 3464 9 deeply deeply RB 40404 3464 10 buried,--and buried,--and JJ 40404 3464 11 especially especially RB 40404 3464 12 those those DT 40404 3464 13 which which WDT 40404 3464 14 have have VBP 40404 3464 15 suffered suffer VBN 40404 3464 16 most most RBS 40404 3464 17 from from IN 40404 3464 18 folding fold VBG 40404 3464 19 and and CC 40404 3464 20 from from IN 40404 3464 21 fracture fracture NN 40404 3464 22 , , , 40404 3464 23 show show VBP 40404 3464 24 the the DT 40404 3464 25 largest large JJS 40404 3464 26 amount amount NN 40404 3464 27 of of IN 40404 3464 28 igneous igneous JJ 40404 3464 29 intrusions intrusion NNS 40404 3464 30 . . . 40404 3465 1 The the DT 40404 3465 2 molten molten JJ 40404 3465 3 rock rock NN 40404 3465 4 which which WDT 40404 3465 5 has have VBZ 40404 3465 6 been be VBN 40404 3465 7 driven drive VBN 40404 3465 8 from from IN 40404 3465 9 the the DT 40404 3465 10 earth earth NN 40404 3465 11 's 's POS 40404 3465 12 interior interior NN 40404 3465 13 to to IN 40404 3465 14 within within IN 40404 3465 15 the the DT 40404 3465 16 crust crust NN 40404 3465 17 or or CC 40404 3465 18 to to IN 40404 3465 19 the the DT 40404 3465 20 surface surface NN 40404 3465 21 during during IN 40404 3465 22 geologic geologic NN 40404 3465 23 time time NN 40404 3465 24 must must MD 40404 3465 25 be be VB 40404 3465 26 reckoned reckon VBN 40404 3465 27 in in IN 40404 3465 28 millions million NNS 40404 3465 29 of of IN 40404 3465 30 cubic cubic JJ 40404 3465 31 miles mile NNS 40404 3465 32 . . . 40404 3466 1 [ [ -LRB- 40404 3466 2 Illustration illustration NN 40404 3466 3 : : : 40404 3466 4 Fig Fig NNP 40404 3466 5 . . . 40404 3467 1 251 251 CD 40404 3467 2 . . . 40404 3468 1 1 1 CD 40404 3468 2 , , , 40404 3468 3 limestone limestone NN 40404 3468 4 ; ; : 40404 3468 5 2 2 CD 40404 3468 6 , , , 40404 3468 7 tuff tuff NNP 40404 3468 8 ; ; : 40404 3468 9 3 3 CD 40404 3468 10 , , , 40404 3468 11 5 5 CD 40404 3468 12 , , , 40404 3468 13 7 7 CD 40404 3468 14 , , , 40404 3468 15 shale shale JJ 40404 3468 16 with with IN 40404 3468 17 marine marine JJ 40404 3468 18 shells shell NNS 40404 3468 19 ; ; : 40404 3468 20 4 4 CD 40404 3468 21 , , , 40404 3468 22 6 6 CD 40404 3468 23 , , , 40404 3468 24 lava lava NN 40404 3468 25 , , , 40404 3468 26 dotted dotted JJ 40404 3468 27 portions portion NNS 40404 3468 28 scoriaceous scoriaceous JJ 40404 3468 29 . . . 40404 3469 1 Give give VB 40404 3469 2 the the DT 40404 3469 3 history history NN 40404 3469 4 recorded record VBN 40404 3469 5 in in IN 40404 3469 6 this this DT 40404 3469 7 section section NN 40404 3469 8 ] ] -RRB- 40404 3469 9 [ [ -LRB- 40404 3469 10 Illustration illustration NN 40404 3469 11 : : : 40404 3469 12 Fig Fig NNP 40404 3469 13 . . . 40404 3470 1 252 252 CD 40404 3470 2 . . . 40404 3471 1 _ _ NNP 40404 3471 2 a a DT 40404 3471 3 _ _ NNP 40404 3471 4 , , , 40404 3471 5 sedimentary sedimentary JJ 40404 3471 6 strata strata NN 40404 3471 7 with with IN 40404 3471 8 intrusive intrusive JJ 40404 3471 9 sheets sheet NNS 40404 3471 10 ; ; : 40404 3471 11 _ _ NNP 40404 3471 12 b b NNP 40404 3471 13 _ _ NNP 40404 3471 14 , , , 40404 3471 15 sedimentary sedimentary JJ 40404 3471 16 strata strata NN 40404 3471 17 ; ; : 40404 3471 18 _ _ NNP 40404 3471 19 c c NNP 40404 3471 20 _ _ NNP 40404 3471 21 , , , 40404 3471 22 lava lava NN 40404 3471 23 flow flow NN 40404 3471 24 ; ; : 40404 3471 25 _ _ NNP 40404 3471 26 d d NNP 40404 3471 27 _ _ NNP 40404 3471 28 , , , 40404 3471 29 dike dike NN 40404 3471 30 . . . 40404 3472 1 Give give VB 40404 3472 2 the the DT 40404 3472 3 succession succession NN 40404 3472 4 of of IN 40404 3472 5 events event NNS 40404 3472 6 recorded record VBN 40404 3472 7 in in IN 40404 3472 8 this this DT 40404 3472 9 section section NN 40404 3472 10 ] ] -RRB- 40404 3472 11 [ [ -LRB- 40404 3472 12 Illustration illustration NN 40404 3472 13 : : : 40404 3472 14 Fig Fig NNP 40404 3472 15 . . . 40404 3473 1 253 253 CD 40404 3473 2 . . . 40404 3474 1 Which which WDT 40404 3474 2 of of IN 40404 3474 3 the the DT 40404 3474 4 lava lava NN 40404 3474 5 sheets sheet NNS 40404 3474 6 of of IN 40404 3474 7 this this DT 40404 3474 8 section section NN 40404 3474 9 are be VBP 40404 3474 10 contemporaneous contemporaneous JJ 40404 3474 11 anti anti NNS 40404 3474 12 which which WDT 40404 3474 13 intrusive,--_A intrusive,--_A VBZ 40404 3474 14 _ _ NNP 40404 3474 15 , , , 40404 3474 16 whose whose WP$ 40404 3474 17 upper upper JJ 40404 3474 18 surface surface NN 40404 3474 19 is be VBZ 40404 3474 20 overlain overlain NN 40404 3474 21 with with IN 40404 3474 22 a a DT 40404 3474 23 conglomerate conglomerate NN 40404 3474 24 of of IN 40404 3474 25 rolled roll VBN 40404 3474 26 lava lava NN 40404 3474 27 pebbles pebble NNS 40404 3474 28 ; ; : 40404 3474 29 _ _ NNP 40404 3474 30 B B NNP 40404 3474 31 _ _ NNP 40404 3474 32 , , , 40404 3474 33 the the DT 40404 3474 34 cracks crack NNS 40404 3474 35 and and CC 40404 3474 36 seams seam NNS 40404 3474 37 of of IN 40404 3474 38 whose whose WP$ 40404 3474 39 upper upper JJ 40404 3474 40 surface surface NN 40404 3474 41 are be VBP 40404 3474 42 filled fill VBN 40404 3474 43 with with IN 40404 3474 44 the the DT 40404 3474 45 material material NN 40404 3474 46 of of IN 40404 3474 47 the the DT 40404 3474 48 overlying overlying NN 40404 3474 49 sandstone sandstone NN 40404 3474 50 ; ; : 40404 3474 51 _ _ NNP 40404 3474 52 C C NNP 40404 3474 53 _ _ NNP 40404 3474 54 , , , 40404 3474 55 which which WDT 40404 3474 56 breaks break VBZ 40404 3474 57 across across IN 40404 3474 58 the the DT 40404 3474 59 strata strata NN 40404 3474 60 in in IN 40404 3474 61 which which WDT 40404 3474 62 it -PRON- PRP 40404 3474 63 is be VBZ 40404 3474 64 imbedded imbed VBN 40404 3474 65 ; ; : 40404 3474 66 _ _ NNP 40404 3474 67 D D NNP 40404 3474 68 _ _ NNP 40404 3474 69 , , , 40404 3474 70 which which WDT 40404 3474 71 includes include VBZ 40404 3474 72 fragments fragment NNS 40404 3474 73 of of IN 40404 3474 74 both both PDT 40404 3474 75 the the DT 40404 3474 76 underlying underlying JJ 40404 3474 77 and and CC 40404 3474 78 overlying overlie VBG 40404 3474 79 strata strata NN 40404 3474 80 and and CC 40404 3474 81 penetrates penetrate VBZ 40404 3474 82 their -PRON- PRP$ 40404 3474 83 crevices crevice NNS 40404 3474 84 and and CC 40404 3474 85 seams seam NNS 40404 3474 86 ? ? . 40404 3474 87 ] ] -RRB- 40404 3475 1 [ [ -LRB- 40404 3475 2 Illustration illustration NN 40404 3475 3 : : : 40404 3475 4 Fig Fig NNP 40404 3475 5 . . . 40404 3476 1 254 254 CD 40404 3476 2 . . . 40404 3477 1 Mato Mato NNP 40404 3477 2 Tepee Tepee NNP 40404 3477 3 , , , 40404 3477 4 Wyoming Wyoming NNP 40404 3477 5 This this DT 40404 3477 6 magnificent magnificent JJ 40404 3477 7 tower tower NN 40404 3477 8 of of IN 40404 3477 9 igneous igneous JJ 40404 3477 10 rock rock NN 40404 3477 11 three three CD 40404 3477 12 hundred hundred CD 40404 3477 13 feet foot NNS 40404 3477 14 in in IN 40404 3477 15 height height NN 40404 3477 16 has have VBZ 40404 3477 17 been be VBN 40404 3477 18 called call VBN 40404 3477 19 by by IN 40404 3477 20 some some DT 40404 3477 21 a a DT 40404 3477 22 volcanic volcanic JJ 40404 3477 23 neck neck NN 40404 3477 24 . . . 40404 3478 1 Is be VBZ 40404 3478 2 the the DT 40404 3478 3 direction direction NN 40404 3478 4 of of IN 40404 3478 5 the the DT 40404 3478 6 columns column NNS 40404 3478 7 that that WDT 40404 3478 8 which which WDT 40404 3478 9 would would MD 40404 3478 10 obtain obtain VB 40404 3478 11 in in IN 40404 3478 12 the the DT 40404 3478 13 cylindrical cylindrical JJ 40404 3478 14 pipe pipe NN 40404 3478 15 of of IN 40404 3478 16 a a DT 40404 3478 17 volcano volcano NN 40404 3478 18 ? ? . 40404 3479 1 The the DT 40404 3479 2 tower tower NN 40404 3479 3 is be VBZ 40404 3479 4 probably probably RB 40404 3479 5 the the DT 40404 3479 6 remnant remnant NN 40404 3479 7 of of IN 40404 3479 8 a a DT 40404 3479 9 small small JJ 40404 3479 10 laccolith laccolith NN 40404 3479 11 , , , 40404 3479 12 an an DT 40404 3479 13 outlying outlying JJ 40404 3479 14 member member NN 40404 3479 15 of of IN 40404 3479 16 a a DT 40404 3479 17 group group NN 40404 3479 18 of of IN 40404 3479 19 laccoliths laccolith NNS 40404 3479 20 situated situate VBN 40404 3479 21 not not RB 40404 3479 22 far far RB 40404 3479 23 distant distant JJ 40404 3479 24 ] ] -RRB- 40404 3479 25 The the DT 40404 3479 26 Interior Interior NNP 40404 3479 27 Condition Condition NNP 40404 3479 28 of of IN 40404 3479 29 the the DT 40404 3479 30 Earth Earth NNP 40404 3479 31 and and CC 40404 3479 32 Causes Causes NNPS 40404 3479 33 of of IN 40404 3479 34 Vulcanism vulcanism NN 40404 3479 35 and and CC 40404 3479 36 Deformation deformation NN 40404 3479 37 The the DT 40404 3479 38 problems problem NNS 40404 3479 39 of of IN 40404 3479 40 volcanoes volcano NNS 40404 3479 41 and and CC 40404 3479 42 of of IN 40404 3479 43 deformation deformation NN 40404 3479 44 are be VBP 40404 3479 45 so so RB 40404 3479 46 closely closely RB 40404 3479 47 connected connected JJ 40404 3479 48 with with IN 40404 3479 49 that that DT 40404 3479 50 of of IN 40404 3479 51 the the DT 40404 3479 52 earth earth NN 40404 3479 53 's 's POS 40404 3479 54 interior interior NN 40404 3479 55 that that IN 40404 3479 56 we -PRON- PRP 40404 3479 57 may may MD 40404 3479 58 consider consider VB 40404 3479 59 them -PRON- PRP 40404 3479 60 together together RB 40404 3479 61 . . . 40404 3480 1 Few few JJ 40404 3480 2 of of IN 40404 3480 3 these these DT 40404 3480 4 problems problem NNS 40404 3480 5 are be VBP 40404 3480 6 solved solve VBN 40404 3480 7 , , , 40404 3480 8 and and CC 40404 3480 9 we -PRON- PRP 40404 3480 10 may may MD 40404 3480 11 only only RB 40404 3480 12 state state VB 40404 3480 13 some some DT 40404 3480 14 known know VBN 40404 3480 15 facts fact NNS 40404 3480 16 and and CC 40404 3480 17 the the DT 40404 3480 18 probable probable JJ 40404 3480 19 conclusions conclusion NNS 40404 3480 20 which which WDT 40404 3480 21 may may MD 40404 3480 22 be be VB 40404 3480 23 drawn draw VBN 40404 3480 24 as as IN 40404 3480 25 inferences inference NNS 40404 3480 26 from from IN 40404 3480 27 them -PRON- PRP 40404 3480 28 . . . 40404 3481 1 = = NFP 40404 3481 2 The the DT 40404 3481 3 interior interior NN 40404 3481 4 of of IN 40404 3481 5 the the DT 40404 3481 6 earth earth NN 40404 3481 7 is be VBZ 40404 3481 8 hot.= hot.= NNP 40404 3481 9 Volcanoes Volcanoes NNPS 40404 3481 10 prove prove VB 40404 3481 11 that that IN 40404 3481 12 in in IN 40404 3481 13 many many JJ 40404 3481 14 parts part NNS 40404 3481 15 of of IN 40404 3481 16 the the DT 40404 3481 17 earth earth NN 40404 3481 18 there there RB 40404 3481 19 exist exist VBP 40404 3481 20 within within IN 40404 3481 21 reach reach NN 40404 3481 22 of of IN 40404 3481 23 the the DT 40404 3481 24 surface surface NN 40404 3481 25 regions region NNS 40404 3481 26 of of IN 40404 3481 27 such such JJ 40404 3481 28 intense intense JJ 40404 3481 29 heat heat NN 40404 3481 30 that that WDT 40404 3481 31 the the DT 40404 3481 32 rock rock NN 40404 3481 33 is be VBZ 40404 3481 34 in in IN 40404 3481 35 a a DT 40404 3481 36 molten molten JJ 40404 3481 37 condition condition NN 40404 3481 38 . . . 40404 3482 1 Deep deep JJ 40404 3482 2 wells well NNS 40404 3482 3 and and CC 40404 3482 4 mines mine NNS 40404 3482 5 show show VBP 40404 3482 6 everywhere everywhere RB 40404 3482 7 an an DT 40404 3482 8 increase increase NN 40404 3482 9 in in IN 40404 3482 10 temperature temperature NN 40404 3482 11 below below IN 40404 3482 12 the the DT 40404 3482 13 surface surface NN 40404 3482 14 shell shell NN 40404 3482 15 affected affect VBN 40404 3482 16 by by IN 40404 3482 17 the the DT 40404 3482 18 heat heat NN 40404 3482 19 of of IN 40404 3482 20 summer summer NN 40404 3482 21 and and CC 40404 3482 22 the the DT 40404 3482 23 cold cold NN 40404 3482 24 of of IN 40404 3482 25 winter,--a winter,--a NNP 40404 3482 26 shell shell NN 40404 3482 27 in in IN 40404 3482 28 temperate temperate NN 40404 3482 29 latitudes latitude VBZ 40404 3482 30 sixty sixty CD 40404 3482 31 or or CC 40404 3482 32 seventy seventy CD 40404 3482 33 feet foot NNS 40404 3482 34 thick thick JJ 40404 3482 35 . . . 40404 3483 1 Thus thus RB 40404 3483 2 in in IN 40404 3483 3 a a DT 40404 3483 4 boring boring JJ 40404 3483 5 more more JJR 40404 3483 6 than than IN 40404 3483 7 a a DT 40404 3483 8 mile mile NN 40404 3483 9 deep deep JJ 40404 3483 10 at at IN 40404 3483 11 Schladebach Schladebach NNP 40404 3483 12 , , , 40404 3483 13 Germany Germany NNP 40404 3483 14 , , , 40404 3483 15 the the DT 40404 3483 16 earth earth NN 40404 3483 17 grows grow VBZ 40404 3483 18 warmer warm JJR 40404 3483 19 at at IN 40404 3483 20 the the DT 40404 3483 21 rate rate NN 40404 3483 22 of of IN 40404 3483 23 1 1 CD 40404 3483 24 ° ° , 40404 3483 25 F. F. NNP 40404 3483 26 for for IN 40404 3483 27 every every DT 40404 3483 28 sixty sixty CD 40404 3483 29 - - HYPH 40404 3483 30 seven seven CD 40404 3483 31 feet foot NNS 40404 3483 32 as as IN 40404 3483 33 we -PRON- PRP 40404 3483 34 descend descend VBP 40404 3483 35 . . . 40404 3484 1 Taking take VBG 40404 3484 2 the the DT 40404 3484 3 average average JJ 40404 3484 4 rate rate NN 40404 3484 5 of of IN 40404 3484 6 increase increase NN 40404 3484 7 at at IN 40404 3484 8 one one CD 40404 3484 9 degree degree NN 40404 3484 10 for for IN 40404 3484 11 every every DT 40404 3484 12 sixty sixty CD 40404 3484 13 feet foot NNS 40404 3484 14 of of IN 40404 3484 15 descent descent NN 40404 3484 16 , , , 40404 3484 17 and and CC 40404 3484 18 assuming assume VBG 40404 3484 19 that that IN 40404 3484 20 this this DT 40404 3484 21 rate rate NN 40404 3484 22 , , , 40404 3484 23 observed observe VBN 40404 3484 24 at at IN 40404 3484 25 the the DT 40404 3484 26 moderate moderate JJ 40404 3484 27 distances distance NNS 40404 3484 28 open open JJ 40404 3484 29 to to IN 40404 3484 30 observation observation NN 40404 3484 31 , , , 40404 3484 32 continues continue VBZ 40404 3484 33 to to IN 40404 3484 34 at at RB 40404 3484 35 least least JJS 40404 3484 36 thirty thirty CD 40404 3484 37 - - HYPH 40404 3484 38 five five CD 40404 3484 39 miles mile NNS 40404 3484 40 , , , 40404 3484 41 the the DT 40404 3484 42 temperature temperature NN 40404 3484 43 at at IN 40404 3484 44 that that DT 40404 3484 45 depth depth NN 40404 3484 46 must must MD 40404 3484 47 be be VB 40404 3484 48 more more JJR 40404 3484 49 than than IN 40404 3484 50 three three CD 40404 3484 51 thousand thousand CD 40404 3484 52 degrees,--a degrees,--a NNP 40404 3484 53 temperature temperature NN 40404 3484 54 at at IN 40404 3484 55 which which WDT 40404 3484 56 all all DT 40404 3484 57 ordinary ordinary JJ 40404 3484 58 rocks rock NNS 40404 3484 59 would would MD 40404 3484 60 melt melt VB 40404 3484 61 at at IN 40404 3484 62 the the DT 40404 3484 63 earth earth NN 40404 3484 64 's 's POS 40404 3484 65 surface surface NN 40404 3484 66 . . . 40404 3485 1 The the DT 40404 3485 2 rate rate NN 40404 3485 3 of of IN 40404 3485 4 increase increase NN 40404 3485 5 in in IN 40404 3485 6 temperature temperature NN 40404 3485 7 probably probably RB 40404 3485 8 lessens lessen VBZ 40404 3485 9 as as IN 40404 3485 10 we -PRON- PRP 40404 3485 11 go go VBP 40404 3485 12 downward downward RB 40404 3485 13 , , , 40404 3485 14 and and CC 40404 3485 15 it -PRON- PRP 40404 3485 16 may may MD 40404 3485 17 not not RB 40404 3485 18 be be VB 40404 3485 19 appreciable appreciable JJ 40404 3485 20 below below IN 40404 3485 21 a a DT 40404 3485 22 few few JJ 40404 3485 23 hundred hundred CD 40404 3485 24 miles mile NNS 40404 3485 25 . . . 40404 3486 1 But but CC 40404 3486 2 there there EX 40404 3486 3 is be VBZ 40404 3486 4 no no DT 40404 3486 5 reason reason NN 40404 3486 6 to to TO 40404 3486 7 doubt doubt VB 40404 3486 8 that that IN 40404 3486 9 _ _ NNP 40404 3486 10 the the DT 40404 3486 11 interior interior NN 40404 3486 12 of of IN 40404 3486 13 the the DT 40404 3486 14 earth earth NN 40404 3486 15 is be VBZ 40404 3486 16 intensely intensely RB 40404 3486 17 hot hot JJ 40404 3486 18 _ _ NNP 40404 3486 19 . . . 40404 3487 1 Below below IN 40404 3487 2 a a DT 40404 3487 3 depth depth NN 40404 3487 4 of of IN 40404 3487 5 one one CD 40404 3487 6 or or CC 40404 3487 7 two two CD 40404 3487 8 score score NN 40404 3487 9 miles mile NNS 40404 3487 10 we -PRON- PRP 40404 3487 11 may may MD 40404 3487 12 imagine imagine VB 40404 3487 13 the the DT 40404 3487 14 rocks rock NNS 40404 3487 15 everywhere everywhere RB 40404 3487 16 glowing glow VBG 40404 3487 17 with with IN 40404 3487 18 heat heat NN 40404 3487 19 . . . 40404 3488 1 Although although IN 40404 3488 2 the the DT 40404 3488 3 heat heat NN 40404 3488 4 of of IN 40404 3488 5 the the DT 40404 3488 6 interior interior NNP 40404 3488 7 is be VBZ 40404 3488 8 great great JJ 40404 3488 9 enough enough RB 40404 3488 10 to to TO 40404 3488 11 melt melt VB 40404 3488 12 all all DT 40404 3488 13 rocks rock NNS 40404 3488 14 at at IN 40404 3488 15 atmospheric atmospheric JJ 40404 3488 16 pressure pressure NN 40404 3488 17 , , , 40404 3488 18 it -PRON- PRP 40404 3488 19 does do VBZ 40404 3488 20 not not RB 40404 3488 21 follow follow VB 40404 3488 22 that that IN 40404 3488 23 the the DT 40404 3488 24 interior interior NNP 40404 3488 25 is be VBZ 40404 3488 26 fluid fluid JJ 40404 3488 27 . . . 40404 3489 1 Pressure pressure NN 40404 3489 2 raises raise VBZ 40404 3489 3 the the DT 40404 3489 4 fusing fusing NN 40404 3489 5 point point NN 40404 3489 6 of of IN 40404 3489 7 rocks rock NNS 40404 3489 8 , , , 40404 3489 9 and and CC 40404 3489 10 the the DT 40404 3489 11 weight weight NN 40404 3489 12 of of IN 40404 3489 13 the the DT 40404 3489 14 crust crust NN 40404 3489 15 may may MD 40404 3489 16 keep keep VB 40404 3489 17 the the DT 40404 3489 18 interior interior NN 40404 3489 19 in in IN 40404 3489 20 what what WP 40404 3489 21 may may MD 40404 3489 22 be be VB 40404 3489 23 called call VBN 40404 3489 24 a a DT 40404 3489 25 solid solid JJ 40404 3489 26 state state NN 40404 3489 27 , , , 40404 3489 28 although although IN 40404 3489 29 so so RB 40404 3489 30 hot hot JJ 40404 3489 31 as as IN 40404 3489 32 to to TO 40404 3489 33 be be VB 40404 3489 34 a a DT 40404 3489 35 liquid liquid NN 40404 3489 36 or or CC 40404 3489 37 a a DT 40404 3489 38 gas gas NN 40404 3489 39 were be VBD 40404 3489 40 the the DT 40404 3489 41 pressure pressure NN 40404 3489 42 to to TO 40404 3489 43 be be VB 40404 3489 44 removed remove VBN 40404 3489 45 . . . 40404 3490 1 = = NFP 40404 3490 2 The the DT 40404 3490 3 interior interior NN 40404 3490 4 of of IN 40404 3490 5 the the DT 40404 3490 6 earth earth NN 40404 3490 7 is be VBZ 40404 3490 8 dense dense JJ 40404 3490 9 and and CC 40404 3490 10 heavy.= heavy.= CD 40404 3490 11 The the DT 40404 3490 12 earth earth NN 40404 3490 13 behaves behave VBZ 40404 3490 14 as as IN 40404 3490 15 a a DT 40404 3490 16 globe globe NN 40404 3490 17 more more RBR 40404 3490 18 rigid rigid JJ 40404 3490 19 than than IN 40404 3490 20 glass glass NN 40404 3490 21 under under IN 40404 3490 22 the the DT 40404 3490 23 strains strain NNS 40404 3490 24 to to TO 40404 3490 25 which which WDT 40404 3490 26 it -PRON- PRP 40404 3490 27 is be VBZ 40404 3490 28 subjected subject VBN 40404 3490 29 by by IN 40404 3490 30 the the DT 40404 3490 31 attractions attraction NNS 40404 3490 32 of of IN 40404 3490 33 the the DT 40404 3490 34 sun sun NN 40404 3490 35 and and CC 40404 3490 36 moon moon NN 40404 3490 37 and and CC 40404 3490 38 other other JJ 40404 3490 39 heavenly heavenly JJ 40404 3490 40 bodies body NNS 40404 3490 41 . . . 40404 3491 1 The the DT 40404 3491 2 jar jar NN 40404 3491 3 of of IN 40404 3491 4 world world NN 40404 3491 5 - - HYPH 40404 3491 6 shaking shake VBG 40404 3491 7 earthquakes earthquake NNS 40404 3491 8 passes pass VBZ 40404 3491 9 through through IN 40404 3491 10 the the DT 40404 3491 11 earth earth NN 40404 3491 12 's 's POS 40404 3491 13 interior interior NN 40404 3491 14 with with IN 40404 3491 15 nearly nearly RB 40404 3491 16 twice twice PDT 40404 3491 17 the the DT 40404 3491 18 velocity velocity NN 40404 3491 19 with with IN 40404 3491 20 which which WDT 40404 3491 21 it -PRON- PRP 40404 3491 22 would would MD 40404 3491 23 traverse traverse VB 40404 3491 24 solid solid JJ 40404 3491 25 steel steel NN 40404 3491 26 , , , 40404 3491 27 and and CC 40404 3491 28 since since IN 40404 3491 29 the the DT 40404 3491 30 speed speed NN 40404 3491 31 of of IN 40404 3491 32 elastic elastic JJ 40404 3491 33 waves wave NNS 40404 3491 34 depends depend VBZ 40404 3491 35 on on IN 40404 3491 36 the the DT 40404 3491 37 density density NN 40404 3491 38 and and CC 40404 3491 39 elasticity elasticity NN 40404 3491 40 of of IN 40404 3491 41 the the DT 40404 3491 42 medium medium NN 40404 3491 43 , , , 40404 3491 44 it -PRON- PRP 40404 3491 45 follows follow VBZ 40404 3491 46 that that IN 40404 3491 47 the the DT 40404 3491 48 globe globe NN 40404 3491 49 is be VBZ 40404 3491 50 as as IN 40404 3491 51 a a DT 40404 3491 52 whole whole JJ 40404 3491 53 more more RBR 40404 3491 54 dense dense JJ 40404 3491 55 and and CC 40404 3491 56 rigid rigid JJ 40404 3491 57 than than IN 40404 3491 58 steel steel NN 40404 3491 59 . . . 40404 3492 1 _ _ NNP 40404 3492 2 The the DT 40404 3492 3 interior interior NN 40404 3492 4 of of IN 40404 3492 5 the the DT 40404 3492 6 earth earth NN 40404 3492 7 is be VBZ 40404 3492 8 extremely extremely RB 40404 3492 9 dense dense JJ 40404 3492 10 and and CC 40404 3492 11 rigid rigid JJ 40404 3492 12 . . . 40404 3492 13 _ _ NNP 40404 3492 14 The the DT 40404 3492 15 common common JJ 40404 3492 16 rocks rock NNS 40404 3492 17 of of IN 40404 3492 18 the the DT 40404 3492 19 crust crust NN 40404 3492 20 are be VBP 40404 3492 21 about about RB 40404 3492 22 two two CD 40404 3492 23 and and CC 40404 3492 24 a a DT 40404 3492 25 half half NN 40404 3492 26 times time NNS 40404 3492 27 heavier heavy JJR 40404 3492 28 than than IN 40404 3492 29 water water NN 40404 3492 30 , , , 40404 3492 31 while while IN 40404 3492 32 the the DT 40404 3492 33 earth earth NN 40404 3492 34 as as IN 40404 3492 35 a a DT 40404 3492 36 whole whole JJ 40404 3492 37 weighs weigh VBZ 40404 3492 38 five five CD 40404 3492 39 and and CC 40404 3492 40 six six CD 40404 3492 41 - - HYPH 40404 3492 42 tenths tenth NNS 40404 3492 43 times time NNS 40404 3492 44 as as RB 40404 3492 45 much much RB 40404 3492 46 as as IN 40404 3492 47 a a DT 40404 3492 48 globe globe NN 40404 3492 49 of of IN 40404 3492 50 water water NN 40404 3492 51 of of IN 40404 3492 52 the the DT 40404 3492 53 same same JJ 40404 3492 54 size size NN 40404 3492 55 . . . 40404 3493 1 _ _ NNP 40404 3493 2 The the DT 40404 3493 3 interior interior NN 40404 3493 4 is be VBZ 40404 3493 5 therefore therefore RB 40404 3493 6 much much RB 40404 3493 7 more more RBR 40404 3493 8 heavy heavy JJ 40404 3493 9 than than IN 40404 3493 10 the the DT 40404 3493 11 crust crust NN 40404 3493 12 . . . 40404 3493 13 _ _ NNP 40404 3493 14 This this DT 40404 3493 15 may may MD 40404 3493 16 be be VB 40404 3493 17 caused cause VBN 40404 3493 18 in in IN 40404 3493 19 part part NN 40404 3493 20 by by IN 40404 3493 21 compression compression NN 40404 3493 22 of of IN 40404 3493 23 the the DT 40404 3493 24 interior interior NN 40404 3493 25 under under IN 40404 3493 26 the the DT 40404 3493 27 enormous enormous JJ 40404 3493 28 weight weight NN 40404 3493 29 of of IN 40404 3493 30 the the DT 40404 3493 31 crust crust NN 40404 3493 32 , , , 40404 3493 33 and and CC 40404 3493 34 in in IN 40404 3493 35 part part NN 40404 3493 36 also also RB 40404 3493 37 by by IN 40404 3493 38 an an DT 40404 3493 39 assortment assortment NN 40404 3493 40 of of IN 40404 3493 41 material material NN 40404 3493 42 , , , 40404 3493 43 the the DT 40404 3493 44 heavier heavy JJR 40404 3493 45 substances substance NNS 40404 3493 46 , , , 40404 3493 47 such such JJ 40404 3493 48 as as IN 40404 3493 49 the the DT 40404 3493 50 heavy heavy JJ 40404 3493 51 metals metal NNS 40404 3493 52 , , , 40404 3493 53 having have VBG 40404 3493 54 gravitated gravitate VBN 40404 3493 55 towards towards IN 40404 3493 56 the the DT 40404 3493 57 center center NN 40404 3493 58 . . . 40404 3494 1 Between between IN 40404 3494 2 the the DT 40404 3494 3 crust crust NN 40404 3494 4 , , , 40404 3494 5 which which WDT 40404 3494 6 is be VBZ 40404 3494 7 solid solid JJ 40404 3494 8 because because IN 40404 3494 9 it -PRON- PRP 40404 3494 10 is be VBZ 40404 3494 11 cool cool JJ 40404 3494 12 , , , 40404 3494 13 and and CC 40404 3494 14 the the DT 40404 3494 15 interior interior NN 40404 3494 16 , , , 40404 3494 17 which which WDT 40404 3494 18 is be VBZ 40404 3494 19 hot hot JJ 40404 3494 20 enough enough RB 40404 3494 21 to to IN 40404 3494 22 melt melt NNP 40404 3494 23 were be VBD 40404 3494 24 it -PRON- PRP 40404 3494 25 not not RB 40404 3494 26 for for IN 40404 3494 27 the the DT 40404 3494 28 pressure pressure NN 40404 3494 29 which which WDT 40404 3494 30 keeps keep VBZ 40404 3494 31 it -PRON- PRP 40404 3494 32 dense dense JJ 40404 3494 33 and and CC 40404 3494 34 rigid rigid JJ 40404 3494 35 , , , 40404 3494 36 there there EX 40404 3494 37 may may MD 40404 3494 38 be be VB 40404 3494 39 an an DT 40404 3494 40 intermediate intermediate JJ 40404 3494 41 zone zone NN 40404 3494 42 in in IN 40404 3494 43 which which WDT 40404 3494 44 heat heat NN 40404 3494 45 and and CC 40404 3494 46 pressure pressure NN 40404 3494 47 are be VBP 40404 3494 48 so so RB 40404 3494 49 evenly evenly RB 40404 3494 50 balanced balanced JJ 40404 3494 51 that that IN 40404 3494 52 here here RB 40404 3494 53 rock rock NN 40404 3494 54 liquefies liquefie NNS 40404 3494 55 whenever whenever WRB 40404 3494 56 and and CC 40404 3494 57 wherever wherever WRB 40404 3494 58 the the DT 40404 3494 59 pressure pressure NN 40404 3494 60 upon upon IN 40404 3494 61 it -PRON- PRP 40404 3494 62 may may MD 40404 3494 63 be be VB 40404 3494 64 relieved relieve VBN 40404 3494 65 by by IN 40404 3494 66 movements movement NNS 40404 3494 67 of of IN 40404 3494 68 the the DT 40404 3494 69 crust crust NN 40404 3494 70 . . . 40404 3495 1 It -PRON- PRP 40404 3495 2 is be VBZ 40404 3495 3 perhaps perhaps RB 40404 3495 4 from from IN 40404 3495 5 such such PDT 40404 3495 6 a a DT 40404 3495 7 subcrustal subcrustal JJ 40404 3495 8 layer layer NN 40404 3495 9 that that WDT 40404 3495 10 the the DT 40404 3495 11 lava lava NN 40404 3495 12 of of IN 40404 3495 13 volcanoes volcano NNS 40404 3495 14 is be VBZ 40404 3495 15 supplied supply VBN 40404 3495 16 . . . 40404 3496 1 = = NFP 40404 3496 2 The the DT 40404 3496 3 causes cause NNS 40404 3496 4 of of IN 40404 3496 5 volcanic volcanic JJ 40404 3496 6 action.= action.= CD 40404 3496 7 It -PRON- PRP 40404 3496 8 is be VBZ 40404 3496 9 now now RB 40404 3496 10 generally generally RB 40404 3496 11 believed believe VBN 40404 3496 12 that that IN 40404 3496 13 the the DT 40404 3496 14 _ _ NNP 40404 3496 15 heat heat NN 40404 3496 16 _ _ NNP 40404 3496 17 of of IN 40404 3496 18 volcanoes volcano NNS 40404 3496 19 is be VBZ 40404 3496 20 that that DT 40404 3496 21 of of IN 40404 3496 22 the the DT 40404 3496 23 earth earth NN 40404 3496 24 's 's POS 40404 3496 25 interior interior NN 40404 3496 26 . . . 40404 3497 1 Other other JJ 40404 3497 2 causes cause NNS 40404 3497 3 , , , 40404 3497 4 such such JJ 40404 3497 5 as as IN 40404 3497 6 friction friction NN 40404 3497 7 and and CC 40404 3497 8 crushing crushing NN 40404 3497 9 in in IN 40404 3497 10 the the DT 40404 3497 11 making making NN 40404 3497 12 of of IN 40404 3497 13 mountains mountain NNS 40404 3497 14 and and CC 40404 3497 15 the the DT 40404 3497 16 chemical chemical NN 40404 3497 17 reactions reaction NNS 40404 3497 18 between between IN 40404 3497 19 oxidizing oxidize VBG 40404 3497 20 agents agent NNS 40404 3497 21 of of IN 40404 3497 22 the the DT 40404 3497 23 crust crust NN 40404 3497 24 and and CC 40404 3497 25 the the DT 40404 3497 26 unoxidized unoxidized JJ 40404 3497 27 interior interior NN 40404 3497 28 , , , 40404 3497 29 have have VBP 40404 3497 30 been be VBN 40404 3497 31 suggested suggest VBN 40404 3497 32 , , , 40404 3497 33 but but CC 40404 3497 34 to to IN 40404 3497 35 most most JJS 40404 3497 36 geologists geologist NNS 40404 3497 37 they -PRON- PRP 40404 3497 38 seem seem VBP 40404 3497 39 inadequate inadequate JJ 40404 3497 40 . . . 40404 3498 1 There there EX 40404 3498 2 is be VBZ 40404 3498 3 much much JJ 40404 3498 4 difference difference NN 40404 3498 5 of of IN 40404 3498 6 opinion opinion NN 40404 3498 7 as as IN 40404 3498 8 to to IN 40404 3498 9 the the DT 40404 3498 10 _ _ NNP 40404 3498 11 force force NN 40404 3498 12 _ _ NNP 40404 3498 13 which which WDT 40404 3498 14 causes cause VBZ 40404 3498 15 molten molten JJ 40404 3498 16 rock rock NN 40404 3498 17 to to TO 40404 3498 18 rise rise VB 40404 3498 19 to to IN 40404 3498 20 the the DT 40404 3498 21 surface surface NN 40404 3498 22 in in IN 40404 3498 23 the the DT 40404 3498 24 ducts duct NNS 40404 3498 25 of of IN 40404 3498 26 volcanoes volcano NNS 40404 3498 27 . . . 40404 3499 1 Steam steam NN 40404 3499 2 is be VBZ 40404 3499 3 so so RB 40404 3499 4 evidently evidently RB 40404 3499 5 concerned concerned JJ 40404 3499 6 in in IN 40404 3499 7 explosive explosive JJ 40404 3499 8 eruptions eruption NNS 40404 3499 9 that that WDT 40404 3499 10 many many JJ 40404 3499 11 believe believe VBP 40404 3499 12 that that IN 40404 3499 13 lava lava NN 40404 3499 14 is be VBZ 40404 3499 15 driven drive VBN 40404 3499 16 upward upward RB 40404 3499 17 by by IN 40404 3499 18 the the DT 40404 3499 19 expansive expansive JJ 40404 3499 20 force force NN 40404 3499 21 of of IN 40404 3499 22 the the DT 40404 3499 23 steam steam NN 40404 3499 24 with with IN 40404 3499 25 which which WDT 40404 3499 26 it -PRON- PRP 40404 3499 27 is be VBZ 40404 3499 28 charged charge VBN 40404 3499 29 , , , 40404 3499 30 much much RB 40404 3499 31 as as IN 40404 3499 32 a a DT 40404 3499 33 viscid viscid JJ 40404 3499 34 liquid liquid NN 40404 3499 35 rises rise NNS 40404 3499 36 and and CC 40404 3499 37 boils boil VBZ 40404 3499 38 over over RP 40404 3499 39 in in IN 40404 3499 40 a a DT 40404 3499 41 test test NN 40404 3499 42 tube tube NN 40404 3499 43 or or CC 40404 3499 44 kettle kettle NN 40404 3499 45 . . . 40404 3500 1 But but CC 40404 3500 2 in in IN 40404 3500 3 quiet quiet JJ 40404 3500 4 eruptions eruption NNS 40404 3500 5 , , , 40404 3500 6 and and CC 40404 3500 7 still still RB 40404 3500 8 more more JJR 40404 3500 9 in in IN 40404 3500 10 the the DT 40404 3500 11 irruption irruption NN 40404 3500 12 of of IN 40404 3500 13 intrusive intrusive JJ 40404 3500 14 sheets sheet NNS 40404 3500 15 and and CC 40404 3500 16 masses masse NNS 40404 3500 17 , , , 40404 3500 18 there there EX 40404 3500 19 is be VBZ 40404 3500 20 little little JJ 40404 3500 21 if if IN 40404 3500 22 any any DT 40404 3500 23 evidence evidence NN 40404 3500 24 that that IN 40404 3500 25 steam steam NN 40404 3500 26 is be VBZ 40404 3500 27 the the DT 40404 3500 28 driving drive VBG 40404 3500 29 force force NN 40404 3500 30 . . . 40404 3501 1 It -PRON- PRP 40404 3501 2 is be VBZ 40404 3501 3 therefore therefore RB 40404 3501 4 believed believe VBN 40404 3501 5 by by IN 40404 3501 6 many many JJ 40404 3501 7 geologists geologist NNS 40404 3501 8 that that IN 40404 3501 9 it -PRON- PRP 40404 3501 10 is be VBZ 40404 3501 11 _ _ NNP 40404 3501 12 pressure pressure NN 40404 3501 13 due due IN 40404 3501 14 to to IN 40404 3501 15 crustal crustal JJ 40404 3501 16 movements movement NNS 40404 3501 17 and and CC 40404 3501 18 internal internal JJ 40404 3501 19 stresses stress NNS 40404 3501 20 _ _ NNP 40404 3501 21 which which WDT 40404 3501 22 squeezes squeeze VBZ 40404 3501 23 molten molten JJ 40404 3501 24 rock rock NN 40404 3501 25 from from IN 40404 3501 26 below below RB 40404 3501 27 into into IN 40404 3501 28 fissures fissure NNS 40404 3501 29 and and CC 40404 3501 30 ducts duct NNS 40404 3501 31 in in IN 40404 3501 32 the the DT 40404 3501 33 crust crust NN 40404 3501 34 . . . 40404 3502 1 It -PRON- PRP 40404 3502 2 is be VBZ 40404 3502 3 held hold VBN 40404 3502 4 by by IN 40404 3502 5 some some DT 40404 3502 6 that that IN 40404 3502 7 where where WRB 40404 3502 8 considerable considerable JJ 40404 3502 9 water water NN 40404 3502 10 is be VBZ 40404 3502 11 supplied supply VBN 40404 3502 12 to to IN 40404 3502 13 the the DT 40404 3502 14 rising rise VBG 40404 3502 15 column column NN 40404 3502 16 of of IN 40404 3502 17 lava lava NN 40404 3502 18 , , , 40404 3502 19 as as IN 40404 3502 20 from from IN 40404 3502 21 the the DT 40404 3502 22 ground ground NN 40404 3502 23 water water NN 40404 3502 24 of of IN 40404 3502 25 the the DT 40404 3502 26 surrounding surround VBG 40404 3502 27 region region NN 40404 3502 28 , , , 40404 3502 29 and and CC 40404 3502 30 where where WRB 40404 3502 31 the the DT 40404 3502 32 lava lava NN 40404 3502 33 is be VBZ 40404 3502 34 viscid viscid JJ 40404 3502 35 so so IN 40404 3502 36 that that DT 40404 3502 37 steam steam NN 40404 3502 38 does do VBZ 40404 3502 39 not not RB 40404 3502 40 readily readily RB 40404 3502 41 escape escape VB 40404 3502 42 , , , 40404 3502 43 the the DT 40404 3502 44 eruption eruption NN 40404 3502 45 is be VBZ 40404 3502 46 of of IN 40404 3502 47 the the DT 40404 3502 48 explosive explosive JJ 40404 3502 49 type type NN 40404 3502 50 ; ; : 40404 3502 51 when when WRB 40404 3502 52 these these DT 40404 3502 53 conditions condition NNS 40404 3502 54 do do VBP 40404 3502 55 not not RB 40404 3502 56 obtain obtain VB 40404 3502 57 , , , 40404 3502 58 the the DT 40404 3502 59 lava lava NN 40404 3502 60 outwells outwell VBZ 40404 3502 61 quietly quietly RB 40404 3502 62 , , , 40404 3502 63 as as IN 40404 3502 64 in in IN 40404 3502 65 the the DT 40404 3502 66 Hawaiian hawaiian JJ 40404 3502 67 volcanoes volcano NNS 40404 3502 68 . . . 40404 3503 1 It -PRON- PRP 40404 3503 2 is be VBZ 40404 3503 3 held hold VBN 40404 3503 4 by by IN 40404 3503 5 others other NNS 40404 3503 6 not not RB 40404 3503 7 only only RB 40404 3503 8 that that IN 40404 3503 9 volcanoes volcano NNS 40404 3503 10 are be VBP 40404 3503 11 due due JJ 40404 3503 12 to to IN 40404 3503 13 the the DT 40404 3503 14 outflow outflow NN 40404 3503 15 of of IN 40404 3503 16 the the DT 40404 3503 17 earth earth NN 40404 3503 18 's 's POS 40404 3503 19 deep deep RB 40404 3503 20 - - HYPH 40404 3503 21 seated seat VBN 40404 3503 22 heat heat NN 40404 3503 23 , , , 40404 3503 24 but but CC 40404 3503 25 also also RB 40404 3503 26 that that IN 40404 3503 27 the the DT 40404 3503 28 steam steam NN 40404 3503 29 and and CC 40404 3503 30 other other JJ 40404 3503 31 emitted emitted JJ 40404 3503 32 gases gas NNS 40404 3503 33 are be VBP 40404 3503 34 for for IN 40404 3503 35 the the DT 40404 3503 36 most most JJS 40404 3503 37 part part NN 40404 3503 38 native native JJ 40404 3503 39 to to IN 40404 3503 40 the the DT 40404 3503 41 earth earth NN 40404 3503 42 's 's POS 40404 3503 43 interior interior NN 40404 3503 44 and and CC 40404 3503 45 never never RB 40404 3503 46 have have VB 40404 3503 47 had have VBD 40404 3503 48 place place NN 40404 3503 49 in in IN 40404 3503 50 the the DT 40404 3503 51 circulation circulation NN 40404 3503 52 of of IN 40404 3503 53 atmospheric atmospheric JJ 40404 3503 54 and and CC 40404 3503 55 ground ground NN 40404 3503 56 waters water NNS 40404 3503 57 . . . 40404 3504 1 = = NFP 40404 3504 2 Volcanic volcanic JJ 40404 3504 3 action action NN 40404 3504 4 and and CC 40404 3504 5 deformation.= deformation.= NN 40404 3504 6 Volcanoes Volcanoes NNPS 40404 3504 7 do do VBP 40404 3504 8 not not RB 40404 3504 9 occur occur VB 40404 3504 10 on on IN 40404 3504 11 wide wide JJ 40404 3504 12 plains plain NNS 40404 3504 13 or or CC 40404 3504 14 among among IN 40404 3504 15 ancient ancient JJ 40404 3504 16 mountains mountain NNS 40404 3504 17 . . . 40404 3505 1 On on IN 40404 3505 2 the the DT 40404 3505 3 other other JJ 40404 3505 4 hand hand NN 40404 3505 5 , , , 40404 3505 6 where where WRB 40404 3505 7 movements movement NNS 40404 3505 8 of of IN 40404 3505 9 the the DT 40404 3505 10 earth earth NN 40404 3505 11 's 's POS 40404 3505 12 crust crust NN 40404 3505 13 are be VBP 40404 3505 14 in in IN 40404 3505 15 progress progress NN 40404 3505 16 in in IN 40404 3505 17 the the DT 40404 3505 18 uplift uplift NN 40404 3505 19 of of IN 40404 3505 20 high high JJ 40404 3505 21 plateaus plateaus NN 40404 3505 22 , , , 40404 3505 23 and and CC 40404 3505 24 still still RB 40404 3505 25 more more JJR 40404 3505 26 in in IN 40404 3505 27 mountain mountain NN 40404 3505 28 making making NN 40404 3505 29 , , , 40404 3505 30 molten molten JJ 40404 3505 31 rock rock NN 40404 3505 32 may may MD 40404 3505 33 reach reach VB 40404 3505 34 the the DT 40404 3505 35 surface surface NN 40404 3505 36 , , , 40404 3505 37 or or CC 40404 3505 38 may may MD 40404 3505 39 be be VB 40404 3505 40 driven drive VBN 40404 3505 41 upward upward RB 40404 3505 42 toward toward IN 40404 3505 43 it -PRON- PRP 40404 3505 44 forming form VBG 40404 3505 45 great great JJ 40404 3505 46 intrusive intrusive JJ 40404 3505 47 masses masse NNS 40404 3505 48 . . . 40404 3506 1 Thus thus RB 40404 3506 2 extensive extensive JJ 40404 3506 3 lava lava NN 40404 3506 4 flows flow NNS 40404 3506 5 accompanied accompany VBD 40404 3506 6 the the DT 40404 3506 7 upheaval upheaval NN 40404 3506 8 of of IN 40404 3506 9 the the DT 40404 3506 10 block block NN 40404 3506 11 mountains mountain NNS 40404 3506 12 of of IN 40404 3506 13 western western JJ 40404 3506 14 North North NNP 40404 3506 15 America America NNP 40404 3506 16 and and CC 40404 3506 17 the the DT 40404 3506 18 uplift uplift NN 40404 3506 19 of of IN 40404 3506 20 the the DT 40404 3506 21 Colorado Colorado NNP 40404 3506 22 plateau plateau NN 40404 3506 23 . . . 40404 3507 1 A a DT 40404 3507 2 line line NN 40404 3507 3 of of IN 40404 3507 4 recent recent JJ 40404 3507 5 volcanoes volcano NNS 40404 3507 6 may may MD 40404 3507 7 be be VB 40404 3507 8 traced trace VBN 40404 3507 9 along along IN 40404 3507 10 the the DT 40404 3507 11 system system NN 40404 3507 12 of of IN 40404 3507 13 rift rift JJ 40404 3507 14 valleys valley NNS 40404 3507 15 which which WDT 40404 3507 16 extends extend VBZ 40404 3507 17 from from IN 40404 3507 18 the the DT 40404 3507 19 Jordan Jordan NNP 40404 3507 20 and and CC 40404 3507 21 Dead Dead NNP 40404 3507 22 Sea Sea NNP 40404 3507 23 through through IN 40404 3507 24 eastern eastern JJ 40404 3507 25 Africa Africa NNP 40404 3507 26 to to IN 40404 3507 27 Lake Lake NNP 40404 3507 28 Nyassa Nyassa NNP 40404 3507 29 . . . 40404 3508 1 The the DT 40404 3508 2 volcanoes volcano NNS 40404 3508 3 of of IN 40404 3508 4 the the DT 40404 3508 5 Andes Andes NNP 40404 3508 6 show show VBP 40404 3508 7 how how WRB 40404 3508 8 conspicuous conspicuous JJ 40404 3508 9 volcanic volcanic JJ 40404 3508 10 action action NN 40404 3508 11 may may MD 40404 3508 12 be be VB 40404 3508 13 in in IN 40404 3508 14 young young JJ 40404 3508 15 rising rise VBG 40404 3508 16 ranges range NNS 40404 3508 17 . . . 40404 3509 1 Folded fold VBN 40404 3509 2 mountains mountain NNS 40404 3509 3 often often RB 40404 3509 4 show show VBP 40404 3509 5 a a DT 40404 3509 6 core core NN 40404 3509 7 of of IN 40404 3509 8 igneous igneous JJ 40404 3509 9 rock rock NN 40404 3509 10 , , , 40404 3509 11 which which WDT 40404 3509 12 by by IN 40404 3509 13 long long JJ 40404 3509 14 erosion erosion NN 40404 3509 15 has have VBZ 40404 3509 16 come come VBN 40404 3509 17 to to TO 40404 3509 18 form form VB 40404 3509 19 the the DT 40404 3509 20 axis axi NNS 40404 3509 21 and and CC 40404 3509 22 the the DT 40404 3509 23 highest high JJS 40404 3509 24 peaks peak NNS 40404 3509 25 of of IN 40404 3509 26 the the DT 40404 3509 27 range range NN 40404 3509 28 , , , 40404 3509 29 as as IN 40404 3509 30 if if IN 40404 3509 31 the the DT 40404 3509 32 molten molten JJ 40404 3509 33 rock rock NN 40404 3509 34 had have VBD 40404 3509 35 been be VBN 40404 3509 36 squeezed squeeze VBN 40404 3509 37 up up RP 40404 3509 38 under under IN 40404 3509 39 the the DT 40404 3509 40 rising rise VBG 40404 3509 41 upfolds upfold NNS 40404 3509 42 . . . 40404 3510 1 As as IN 40404 3510 2 we -PRON- PRP 40404 3510 3 decipher decipher VBP 40404 3510 4 the the DT 40404 3510 5 records record NNS 40404 3510 6 of of IN 40404 3510 7 the the DT 40404 3510 8 rocks rock NNS 40404 3510 9 in in IN 40404 3510 10 historical historical JJ 40404 3510 11 geology geology NN 40404 3510 12 we -PRON- PRP 40404 3510 13 shall shall MD 40404 3510 14 see see VB 40404 3510 15 more more RBR 40404 3510 16 fully fully RB 40404 3510 17 how how WRB 40404 3510 18 , , , 40404 3510 19 in in IN 40404 3510 20 all all PDT 40404 3510 21 the the DT 40404 3510 22 past past JJ 40404 3510 23 , , , 40404 3510 24 volcanic volcanic JJ 40404 3510 25 action action NN 40404 3510 26 has have VBZ 40404 3510 27 characterized characterize VBN 40404 3510 28 the the DT 40404 3510 29 periods period NNS 40404 3510 30 of of IN 40404 3510 31 great great JJ 40404 3510 32 crustal crustal JJ 40404 3510 33 movements movement NNS 40404 3510 34 , , , 40404 3510 35 and and CC 40404 3510 36 how how WRB 40404 3510 37 it -PRON- PRP 40404 3510 38 has have VBZ 40404 3510 39 been be VBN 40404 3510 40 absent absent JJ 40404 3510 41 when when WRB 40404 3510 42 and and CC 40404 3510 43 where where WRB 40404 3510 44 the the DT 40404 3510 45 earth earth NN 40404 3510 46 's 's POS 40404 3510 47 crust crust NN 40404 3510 48 has have VBZ 40404 3510 49 remained remain VBN 40404 3510 50 comparatively comparatively RB 40404 3510 51 at at IN 40404 3510 52 rest rest NN 40404 3510 53 . . . 40404 3511 1 = = NFP 40404 3511 2 The the DT 40404 3511 3 causes cause NNS 40404 3511 4 of of IN 40404 3511 5 deformation.= deformation.= CD 40404 3511 6 As as IN 40404 3511 7 the the DT 40404 3511 8 earth earth NN 40404 3511 9 's 's POS 40404 3511 10 interior interior NN 40404 3511 11 , , , 40404 3511 12 or or CC 40404 3511 13 nucleus nucleus NN 40404 3511 14 , , , 40404 3511 15 is be VBZ 40404 3511 16 highly highly RB 40404 3511 17 heated heated JJ 40404 3511 18 it -PRON- PRP 40404 3511 19 must must MD 40404 3511 20 be be VB 40404 3511 21 constantly constantly RB 40404 3511 22 though though IN 40404 3511 23 slowly slowly RB 40404 3511 24 losing lose VBG 40404 3511 25 its -PRON- PRP$ 40404 3511 26 heat heat NN 40404 3511 27 by by IN 40404 3511 28 conduction conduction NN 40404 3511 29 through through IN 40404 3511 30 the the DT 40404 3511 31 crust crust NN 40404 3511 32 and and CC 40404 3511 33 into into IN 40404 3511 34 space space NN 40404 3511 35 ; ; : 40404 3511 36 and and CC 40404 3511 37 since since IN 40404 3511 38 the the DT 40404 3511 39 nucleus nucleus NN 40404 3511 40 is be VBZ 40404 3511 41 cooling cool VBG 40404 3511 42 it -PRON- PRP 40404 3511 43 must must MD 40404 3511 44 also also RB 40404 3511 45 be be VB 40404 3511 46 contracting contract VBG 40404 3511 47 . . . 40404 3512 1 The the DT 40404 3512 2 nucleus nucleus NN 40404 3512 3 has have VBZ 40404 3512 4 contracted contract VBN 40404 3512 5 also also RB 40404 3512 6 because because IN 40404 3512 7 of of IN 40404 3512 8 the the DT 40404 3512 9 extrusion extrusion NN 40404 3512 10 of of IN 40404 3512 11 molten molten JJ 40404 3512 12 matter matter NN 40404 3512 13 , , , 40404 3512 14 the the DT 40404 3512 15 loss loss NN 40404 3512 16 of of IN 40404 3512 17 constituent constituent NN 40404 3512 18 gases gas NNS 40404 3512 19 given give VBN 40404 3512 20 off off RP 40404 3512 21 in in IN 40404 3512 22 volcanic volcanic JJ 40404 3512 23 eruptions eruption NNS 40404 3512 24 , , , 40404 3512 25 and and CC 40404 3512 26 ( ( -LRB- 40404 3512 27 still still RB 40404 3512 28 more more RBR 40404 3512 29 important important JJ 40404 3512 30 ) ) -RRB- 40404 3512 31 the the DT 40404 3512 32 compression compression NN 40404 3512 33 and and CC 40404 3512 34 consolidation consolidation NN 40404 3512 35 of of IN 40404 3512 36 its -PRON- PRP$ 40404 3512 37 material material NN 40404 3512 38 under under IN 40404 3512 39 gravity gravity NN 40404 3512 40 . . . 40404 3513 1 As as IN 40404 3513 2 the the DT 40404 3513 3 nucleus nucleus NN 40404 3513 4 contracts contract NNS 40404 3513 5 , , , 40404 3513 6 it -PRON- PRP 40404 3513 7 tends tend VBZ 40404 3513 8 to to TO 40404 3513 9 draw draw VB 40404 3513 10 away away RB 40404 3513 11 from from IN 40404 3513 12 the the DT 40404 3513 13 cooled cooled JJ 40404 3513 14 and and CC 40404 3513 15 solid solid JJ 40404 3513 16 crust crust NN 40404 3513 17 , , , 40404 3513 18 and and CC 40404 3513 19 the the DT 40404 3513 20 latter latter JJ 40404 3513 21 settles settle NNS 40404 3513 22 , , , 40404 3513 23 adapting adapt VBG 40404 3513 24 itself -PRON- PRP 40404 3513 25 to to IN 40404 3513 26 the the DT 40404 3513 27 shrinking shrink VBG 40404 3513 28 nucleus nucleus NN 40404 3513 29 much much RB 40404 3513 30 as as IN 40404 3513 31 the the DT 40404 3513 32 skin skin NN 40404 3513 33 of of IN 40404 3513 34 a a DT 40404 3513 35 withering wither VBG 40404 3513 36 apple apple NN 40404 3513 37 wrinkles wrinkle NNS 40404 3513 38 down down RP 40404 3513 39 upon upon IN 40404 3513 40 the the DT 40404 3513 41 shrunken shrunken JJ 40404 3513 42 fruit fruit NN 40404 3513 43 . . . 40404 3514 1 The the DT 40404 3514 2 unsupported unsupported JJ 40404 3514 3 weight weight NN 40404 3514 4 of of IN 40404 3514 5 the the DT 40404 3514 6 spherical spherical JJ 40404 3514 7 crust crust NN 40404 3514 8 develops develop VBZ 40404 3514 9 enormous enormous JJ 40404 3514 10 tangential tangential JJ 40404 3514 11 pressures pressure NNS 40404 3514 12 , , , 40404 3514 13 similar similar JJ 40404 3514 14 to to IN 40404 3514 15 the the DT 40404 3514 16 stresses stress NNS 40404 3514 17 of of IN 40404 3514 18 an an DT 40404 3514 19 arch arch JJ 40404 3514 20 or or CC 40404 3514 21 dome dome NN 40404 3514 22 , , , 40404 3514 23 and and CC 40404 3514 24 when when WRB 40404 3514 25 these these DT 40404 3514 26 lateral lateral JJ 40404 3514 27 thrusts thrust NNS 40404 3514 28 accumulate accumulate VBP 40404 3514 29 beyond beyond IN 40404 3514 30 the the DT 40404 3514 31 power power NN 40404 3514 32 of of IN 40404 3514 33 resistance resistance NN 40404 3514 34 the the DT 40404 3514 35 solid solid JJ 40404 3514 36 rock rock NN 40404 3514 37 is be VBZ 40404 3514 38 warped warp VBN 40404 3514 39 and and CC 40404 3514 40 folded fold VBN 40404 3514 41 and and CC 40404 3514 42 broken break VBN 40404 3514 43 . . . 40404 3515 1 Since since IN 40404 3515 2 the the DT 40404 3515 3 planet planet NN 40404 3515 4 attained attain VBD 40404 3515 5 its -PRON- PRP$ 40404 3515 6 present present JJ 40404 3515 7 mass mass NN 40404 3515 8 it -PRON- PRP 40404 3515 9 has have VBZ 40404 3515 10 thus thus RB 40404 3515 11 been be VBN 40404 3515 12 lessening lessen VBG 40404 3515 13 in in IN 40404 3515 14 volume volume NN 40404 3515 15 . . . 40404 3516 1 Notwithstanding notwithstanding IN 40404 3516 2 local local JJ 40404 3516 3 and and CC 40404 3516 4 relative relative JJ 40404 3516 5 upheavals upheaval NNS 40404 3516 6 the the DT 40404 3516 7 earth earth NN 40404 3516 8 's 's POS 40404 3516 9 surface surface NN 40404 3516 10 on on IN 40404 3516 11 the the DT 40404 3516 12 whole whole NN 40404 3516 13 has have VBZ 40404 3516 14 drawn draw VBN 40404 3516 15 nearer nearer RB 40404 3516 16 and and CC 40404 3516 17 nearer near RBR 40404 3516 18 to to IN 40404 3516 19 the the DT 40404 3516 20 center center NN 40404 3516 21 . . . 40404 3517 1 The the DT 40404 3517 2 portions portion NNS 40404 3517 3 of of IN 40404 3517 4 the the DT 40404 3517 5 lithosphere lithosphere JJ 40404 3517 6 which which WDT 40404 3517 7 have have VBP 40404 3517 8 been be VBN 40404 3517 9 carried carry VBN 40404 3517 10 down down RP 40404 3517 11 the the DT 40404 3517 12 farthest farth JJS 40404 3517 13 have have VBP 40404 3517 14 received receive VBN 40404 3517 15 the the DT 40404 3517 16 waters water NNS 40404 3517 17 of of IN 40404 3517 18 the the DT 40404 3517 19 oceans ocean NNS 40404 3517 20 , , , 40404 3517 21 while while IN 40404 3517 22 those those DT 40404 3517 23 portions portion NNS 40404 3517 24 which which WDT 40404 3517 25 have have VBP 40404 3517 26 been be VBN 40404 3517 27 carried carry VBN 40404 3517 28 down down RP 40404 3517 29 the the DT 40404 3517 30 least least JJS 40404 3517 31 have have VBP 40404 3517 32 emerged emerge VBN 40404 3517 33 as as IN 40404 3517 34 continents continent NNS 40404 3517 35 . . . 40404 3518 1 Although although IN 40404 3518 2 it -PRON- PRP 40404 3518 3 serves serve VBZ 40404 3518 4 our -PRON- PRP$ 40404 3518 5 convenience convenience NN 40404 3518 6 to to TO 40404 3518 7 refer refer VB 40404 3518 8 the the DT 40404 3518 9 movements movement NNS 40404 3518 10 of of IN 40404 3518 11 the the DT 40404 3518 12 crust crust NN 40404 3518 13 to to IN 40404 3518 14 the the DT 40404 3518 15 sea sea NN 40404 3518 16 level level NN 40404 3518 17 as as IN 40404 3518 18 datum datum NN 40404 3518 19 plane plane NN 40404 3518 20 , , , 40404 3518 21 it -PRON- PRP 40404 3518 22 is be VBZ 40404 3518 23 understood understand VBN 40404 3518 24 that that IN 40404 3518 25 this this DT 40404 3518 26 level level NN 40404 3518 27 is be VBZ 40404 3518 28 by by IN 40404 3518 29 no no DT 40404 3518 30 means means NN 40404 3518 31 fixed fix VBN 40404 3518 32 . . . 40404 3519 1 Changes change NNS 40404 3519 2 in in IN 40404 3519 3 the the DT 40404 3519 4 ocean ocean NN 40404 3519 5 basins basin NNS 40404 3519 6 increase increase NN 40404 3519 7 or or CC 40404 3519 8 reduce reduce VB 40404 3519 9 their -PRON- PRP$ 40404 3519 10 capacity capacity NN 40404 3519 11 and and CC 40404 3519 12 thus thus RB 40404 3519 13 lower low JJR 40404 3519 14 or or CC 40404 3519 15 raise raise VB 40404 3519 16 the the DT 40404 3519 17 level level NN 40404 3519 18 of of IN 40404 3519 19 the the DT 40404 3519 20 sea sea NN 40404 3519 21 . . . 40404 3520 1 But but CC 40404 3520 2 since since IN 40404 3520 3 these these DT 40404 3520 4 basins basin NNS 40404 3520 5 are be VBP 40404 3520 6 connected connect VBN 40404 3520 7 , , , 40404 3520 8 the the DT 40404 3520 9 effect effect NN 40404 3520 10 of of IN 40404 3520 11 any any DT 40404 3520 12 change change NN 40404 3520 13 upon upon IN 40404 3520 14 the the DT 40404 3520 15 water water NN 40404 3520 16 level level NN 40404 3520 17 is be VBZ 40404 3520 18 so so RB 40404 3520 19 distributed distributed JJ 40404 3520 20 that that IN 40404 3520 21 it -PRON- PRP 40404 3520 22 is be VBZ 40404 3520 23 far far RB 40404 3520 24 less less RBR 40404 3520 25 noticeable noticeable JJ 40404 3520 26 than than IN 40404 3520 27 a a DT 40404 3520 28 corresponding corresponding JJ 40404 3520 29 change change NN 40404 3520 30 would would MD 40404 3520 31 be be VB 40404 3520 32 upon upon IN 40404 3520 33 the the DT 40404 3520 34 land land NN 40404 3520 35 . . . 40404 3521 1 CHAPTER chapter NN 40404 3521 2 XIII XIII NNP 40404 3521 3 METAMORPHISM METAMORPHISM NNP 40404 3521 4 AND and CC 40404 3521 5 MINERAL MINERAL NNP 40404 3521 6 VEINS vein NNS 40404 3521 7 Under under IN 40404 3521 8 the the DT 40404 3521 9 action action NN 40404 3521 10 of of IN 40404 3521 11 internal internal JJ 40404 3521 12 agencies agency NNS 40404 3521 13 rocks rock NNS 40404 3521 14 of of IN 40404 3521 15 all all DT 40404 3521 16 kinds kind NNS 40404 3521 17 may may MD 40404 3521 18 be be VB 40404 3521 19 rendered render VBN 40404 3521 20 harder hard RBR 40404 3521 21 , , , 40404 3521 22 more more RBR 40404 3521 23 firmly firmly RB 40404 3521 24 cemented cemented JJ 40404 3521 25 , , , 40404 3521 26 and and CC 40404 3521 27 more more RBR 40404 3521 28 crystalline crystalline JJ 40404 3521 29 . . . 40404 3522 1 These these DT 40404 3522 2 processes process NNS 40404 3522 3 are be VBP 40404 3522 4 known know VBN 40404 3522 5 as as IN 40404 3522 6 _ _ NNP 40404 3522 7 metamorphism metamorphism NN 40404 3522 8 _ _ NNP 40404 3522 9 , , , 40404 3522 10 and and CC 40404 3522 11 the the DT 40404 3522 12 rocks rock NNS 40404 3522 13 affected affect VBN 40404 3522 14 , , , 40404 3522 15 whether whether IN 40404 3522 16 originally originally RB 40404 3522 17 sedimentary sedimentary JJ 40404 3522 18 or or CC 40404 3522 19 igneous igneous JJ 40404 3522 20 , , , 40404 3522 21 are be VBP 40404 3522 22 called call VBN 40404 3522 23 _ _ NNP 40404 3522 24 metamorphic metamorphic JJ 40404 3522 25 rocks rock NNS 40404 3522 26 _ _ NNP 40404 3522 27 . . . 40404 3523 1 We -PRON- PRP 40404 3523 2 may may MD 40404 3523 3 contrast contrast VB 40404 3523 4 with with IN 40404 3523 5 metamorphism metamorphism NN 40404 3523 6 the the DT 40404 3523 7 action action NN 40404 3523 8 of of IN 40404 3523 9 external external JJ 40404 3523 10 agencies agency NNS 40404 3523 11 in in IN 40404 3523 12 weathering weathering NN 40404 3523 13 , , , 40404 3523 14 which which WDT 40404 3523 15 render render VBP 40404 3523 16 rocks rock NNS 40404 3523 17 less less RBR 40404 3523 18 coherent coherent JJ 40404 3523 19 by by IN 40404 3523 20 dissolving dissolve VBG 40404 3523 21 their -PRON- PRP$ 40404 3523 22 soluble soluble JJ 40404 3523 23 parts part NNS 40404 3523 24 and and CC 40404 3523 25 breaking break VBG 40404 3523 26 down down RP 40404 3523 27 their -PRON- PRP$ 40404 3523 28 crystalline crystalline JJ 40404 3523 29 grains grain NNS 40404 3523 30 . . . 40404 3524 1 = = NFP 40404 3524 2 Contact contact NN 40404 3524 3 metamorphism.= metamorphism.= NNP 40404 3524 4 Rocks Rocks NNPS 40404 3524 5 beneath beneath IN 40404 3524 6 a a DT 40404 3524 7 lava lava NN 40404 3524 8 flow flow NN 40404 3524 9 or or CC 40404 3524 10 in in IN 40404 3524 11 contact contact NN 40404 3524 12 with with IN 40404 3524 13 igneous igneous JJ 40404 3524 14 intrusions intrusion NNS 40404 3524 15 are be VBP 40404 3524 16 found find VBN 40404 3524 17 to to TO 40404 3524 18 be be VB 40404 3524 19 metamorphosed metamorphose VBN 40404 3524 20 to to IN 40404 3524 21 various various JJ 40404 3524 22 degrees degree NNS 40404 3524 23 by by IN 40404 3524 24 the the DT 40404 3524 25 heat heat NN 40404 3524 26 of of IN 40404 3524 27 the the DT 40404 3524 28 cooling cool VBG 40404 3524 29 mass mass NN 40404 3524 30 . . . 40404 3525 1 The the DT 40404 3525 2 adjacent adjacent JJ 40404 3525 3 strata strata NN 40404 3525 4 may may MD 40404 3525 5 be be VB 40404 3525 6 changed change VBN 40404 3525 7 only only RB 40404 3525 8 in in IN 40404 3525 9 color color NN 40404 3525 10 , , , 40404 3525 11 hardness hardness NN 40404 3525 12 , , , 40404 3525 13 and and CC 40404 3525 14 texture texture VB 40404 3525 15 . . . 40404 3526 1 Thus thus RB 40404 3526 2 , , , 40404 3526 3 next next RB 40404 3526 4 to to IN 40404 3526 5 a a DT 40404 3526 6 dike dike JJ 40404 3526 7 , , , 40404 3526 8 bituminous bituminous JJ 40404 3526 9 coal coal NN 40404 3526 10 may may MD 40404 3526 11 be be VB 40404 3526 12 baked bake VBN 40404 3526 13 to to TO 40404 3526 14 coke coke VB 40404 3526 15 or or CC 40404 3526 16 anthracite anthracite NN 40404 3526 17 , , , 40404 3526 18 and and CC 40404 3526 19 chalk chalk NN 40404 3526 20 and and CC 40404 3526 21 limestone limestone NN 40404 3526 22 to to IN 40404 3526 23 crystalline crystalline NN 40404 3526 24 marble marble NN 40404 3526 25 . . . 40404 3527 1 Sandstone sandstone NN 40404 3527 2 may may MD 40404 3527 3 be be VB 40404 3527 4 converted convert VBN 40404 3527 5 into into IN 40404 3527 6 quartzite quartzite NN 40404 3527 7 , , , 40404 3527 8 and and CC 40404 3527 9 shale shale NNP 40404 3527 10 into into IN 40404 3527 11 _ _ NNP 40404 3527 12 argillite argillite NNP 40404 3527 13 _ _ NNP 40404 3527 14 , , , 40404 3527 15 a a DT 40404 3527 16 compact compact JJ 40404 3527 17 , , , 40404 3527 18 massive massive JJ 40404 3527 19 clay clay NN 40404 3527 20 rock rock NN 40404 3527 21 . . . 40404 3528 1 New new JJ 40404 3528 2 minerals mineral NNS 40404 3528 3 may may MD 40404 3528 4 also also RB 40404 3528 5 be be VB 40404 3528 6 developed develop VBN 40404 3528 7 . . . 40404 3529 1 In in IN 40404 3529 2 sedimentary sedimentary JJ 40404 3529 3 rocks rock NNS 40404 3529 4 there there EX 40404 3529 5 may may MD 40404 3529 6 be be VB 40404 3529 7 produced produce VBN 40404 3529 8 crystals crystal NNS 40404 3529 9 of of IN 40404 3529 10 mica mica NNP 40404 3529 11 and and CC 40404 3529 12 of of IN 40404 3529 13 _ _ NNP 40404 3529 14 garnet garnet NN 40404 3529 15 _ _ NNP 40404 3529 16 ( ( -LRB- 40404 3529 17 a a DT 40404 3529 18 mineral mineral NN 40404 3529 19 as as RB 40404 3529 20 hard hard RB 40404 3529 21 as as IN 40404 3529 22 quartz quartz NN 40404 3529 23 , , , 40404 3529 24 commonly commonly RB 40404 3529 25 occurring occur VBG 40404 3529 26 in in IN 40404 3529 27 red red JJ 40404 3529 28 , , , 40404 3529 29 twelve twelve CD 40404 3529 30 - - HYPH 40404 3529 31 sided sided JJ 40404 3529 32 crystals crystal NNS 40404 3529 33 ) ) -RRB- 40404 3529 34 . . . 40404 3530 1 Where where WRB 40404 3530 2 the the DT 40404 3530 3 changes change NNS 40404 3530 4 are be VBP 40404 3530 5 most most RBS 40404 3530 6 profound profound JJ 40404 3530 7 , , , 40404 3530 8 rocks rock NNS 40404 3530 9 may may MD 40404 3530 10 be be VB 40404 3530 11 wholly wholly RB 40404 3530 12 made make VBN 40404 3530 13 over over RP 40404 3530 14 in in IN 40404 3530 15 structure structure NN 40404 3530 16 and and CC 40404 3530 17 mineral mineral NN 40404 3530 18 composition composition NN 40404 3530 19 . . . 40404 3531 1 In in IN 40404 3531 2 contact contact NN 40404 3531 3 metamorphism metamorphism NN 40404 3531 4 , , , 40404 3531 5 thin thin JJ 40404 3531 6 sheets sheet NNS 40404 3531 7 of of IN 40404 3531 8 molten molten JJ 40404 3531 9 rock rock NN 40404 3531 10 produce produce NN 40404 3531 11 less less JJR 40404 3531 12 effect effect NN 40404 3531 13 than than IN 40404 3531 14 thicker thick JJR 40404 3531 15 ones one NNS 40404 3531 16 . . . 40404 3532 1 The the DT 40404 3532 2 strongest strong JJS 40404 3532 3 heat heat NN 40404 3532 4 effects effect NNS 40404 3532 5 are be VBP 40404 3532 6 naturally naturally RB 40404 3532 7 caused cause VBN 40404 3532 8 by by IN 40404 3532 9 bosses boss NNS 40404 3532 10 and and CC 40404 3532 11 regional regional JJ 40404 3532 12 intrusions intrusion NNS 40404 3532 13 , , , 40404 3532 14 and and CC 40404 3532 15 the the DT 40404 3532 16 zone zone NN 40404 3532 17 of of IN 40404 3532 18 change change NN 40404 3532 19 about about IN 40404 3532 20 them -PRON- PRP 40404 3532 21 may may MD 40404 3532 22 be be VB 40404 3532 23 several several JJ 40404 3532 24 miles mile NNS 40404 3532 25 in in IN 40404 3532 26 width width NN 40404 3532 27 . . . 40404 3533 1 In in IN 40404 3533 2 these these DT 40404 3533 3 changes change NNS 40404 3533 4 heated heat VBD 40404 3533 5 waters water NNS 40404 3533 6 and and CC 40404 3533 7 vapors vapor NNS 40404 3533 8 from from IN 40404 3533 9 the the DT 40404 3533 10 masses masse NNS 40404 3533 11 of of IN 40404 3533 12 igneous igneous JJ 40404 3533 13 rocks rock NNS 40404 3533 14 undoubtedly undoubtedly RB 40404 3533 15 play play VBP 40404 3533 16 a a DT 40404 3533 17 very very RB 40404 3533 18 important important JJ 40404 3533 19 part part NN 40404 3533 20 . . . 40404 3534 1 Which which WDT 40404 3534 2 will will MD 40404 3534 3 be be VB 40404 3534 4 more more RBR 40404 3534 5 strongly strongly RB 40404 3534 6 altered alter VBN 40404 3534 7 , , , 40404 3534 8 the the DT 40404 3534 9 rocks rock NNS 40404 3534 10 about about IN 40404 3534 11 a a DT 40404 3534 12 closed closed JJ 40404 3534 13 dike dike NN 40404 3534 14 in in IN 40404 3534 15 which which WDT 40404 3534 16 lava lava NN 40404 3534 17 began begin VBD 40404 3534 18 to to TO 40404 3534 19 cool cool VB 40404 3534 20 as as RB 40404 3534 21 soon soon RB 40404 3534 22 as as IN 40404 3534 23 it -PRON- PRP 40404 3534 24 filled fill VBD 40404 3534 25 the the DT 40404 3534 26 fissure fissure NN 40404 3534 27 , , , 40404 3534 28 or or CC 40404 3534 29 the the DT 40404 3534 30 rocks rock NNS 40404 3534 31 about about IN 40404 3534 32 a a DT 40404 3534 33 dike dike NN 40404 3534 34 which which WDT 40404 3534 35 opened open VBN 40404 3534 36 on on IN 40404 3534 37 the the DT 40404 3534 38 surface surface NN 40404 3534 39 and and CC 40404 3534 40 through through IN 40404 3534 41 which which WDT 40404 3534 42 the the DT 40404 3534 43 molten molten JJ 40404 3534 44 rock rock NN 40404 3534 45 flowed flow VBD 40404 3534 46 for for IN 40404 3534 47 some some DT 40404 3534 48 time time NN 40404 3534 49 ? ? . 40404 3535 1 Taking take VBG 40404 3535 2 into into IN 40404 3535 3 consideration consideration NN 40404 3535 4 the the DT 40404 3535 5 part part NN 40404 3535 6 played play VBN 40404 3535 7 by by IN 40404 3535 8 heated heated JJ 40404 3535 9 waters water NNS 40404 3535 10 , , , 40404 3535 11 which which WDT 40404 3535 12 will will MD 40404 3535 13 produce produce VB 40404 3535 14 the the DT 40404 3535 15 most most RBS 40404 3535 16 far far RB 40404 3535 17 - - HYPH 40404 3535 18 reaching reach VBG 40404 3535 19 metamorphism metamorphism NN 40404 3535 20 , , , 40404 3535 21 dikes dike NNS 40404 3535 22 which which WDT 40404 3535 23 cut cut VBD 40404 3535 24 across across IN 40404 3535 25 the the DT 40404 3535 26 bedding bedding NN 40404 3535 27 planes plane NNS 40404 3535 28 or or CC 40404 3535 29 intrusive intrusive JJ 40404 3535 30 sheets sheet NNS 40404 3535 31 which which WDT 40404 3535 32 are be VBP 40404 3535 33 thrust thrust VBN 40404 3535 34 between between IN 40404 3535 35 the the DT 40404 3535 36 strata strata NN 40404 3535 37 ? ? . 40404 3536 1 = = NFP 40404 3536 2 Regional regional JJ 40404 3536 3 metamorphism.= metamorphism.= CD 40404 3536 4 Metamorphic metamorphic JJ 40404 3536 5 rocks rock NNS 40404 3536 6 occur occur VBP 40404 3536 7 widespread widespread JJ 40404 3536 8 in in IN 40404 3536 9 many many JJ 40404 3536 10 regions region NNS 40404 3536 11 , , , 40404 3536 12 often often RB 40404 3536 13 hundreds hundred NNS 40404 3536 14 of of IN 40404 3536 15 square square JJ 40404 3536 16 miles mile NNS 40404 3536 17 in in IN 40404 3536 18 area area NN 40404 3536 19 , , , 40404 3536 20 where where WRB 40404 3536 21 such such JJ 40404 3536 22 extensive extensive JJ 40404 3536 23 changes change NNS 40404 3536 24 can can MD 40404 3536 25 not not RB 40404 3536 26 be be VB 40404 3536 27 accounted account VBN 40404 3536 28 for for IN 40404 3536 29 by by IN 40404 3536 30 igneous igneous JJ 40404 3536 31 intrusions intrusion NNS 40404 3536 32 . . . 40404 3537 1 Such such JJ 40404 3537 2 are be VBP 40404 3537 3 the the DT 40404 3537 4 dissected dissect VBN 40404 3537 5 cores core NNS 40404 3537 6 of of IN 40404 3537 7 lofty lofty JJ 40404 3537 8 mountains mountain NNS 40404 3537 9 , , , 40404 3537 10 as as IN 40404 3537 11 the the DT 40404 3537 12 Alps Alps NNPS 40404 3537 13 , , , 40404 3537 14 and and CC 40404 3537 15 the the DT 40404 3537 16 worn wear VBN 40404 3537 17 - - HYPH 40404 3537 18 down down RP 40404 3537 19 bases basis NNS 40404 3537 20 of of IN 40404 3537 21 ancient ancient JJ 40404 3537 22 ranges range NNS 40404 3537 23 , , , 40404 3537 24 as as IN 40404 3537 25 in in IN 40404 3537 26 New New NNP 40404 3537 27 England England NNP 40404 3537 28 , , , 40404 3537 29 large large JJ 40404 3537 30 areas area NNS 40404 3537 31 in in IN 40404 3537 32 the the DT 40404 3537 33 Piedmont Piedmont NNP 40404 3537 34 Belt Belt NNP 40404 3537 35 , , , 40404 3537 36 and and CC 40404 3537 37 the the DT 40404 3537 38 Laurentian laurentian JJ 40404 3537 39 peneplain peneplain NN 40404 3537 40 . . . 40404 3538 1 In in IN 40404 3538 2 these these DT 40404 3538 3 regions region NNS 40404 3538 4 the the DT 40404 3538 5 rocks rock NNS 40404 3538 6 have have VBP 40404 3538 7 yielded yield VBN 40404 3538 8 to to IN 40404 3538 9 immense immense JJ 40404 3538 10 pressure pressure NN 40404 3538 11 . . . 40404 3539 1 They -PRON- PRP 40404 3539 2 have have VBP 40404 3539 3 been be VBN 40404 3539 4 folded fold VBN 40404 3539 5 , , , 40404 3539 6 crumpled crumple VBN 40404 3539 7 , , , 40404 3539 8 and and CC 40404 3539 9 mashed mash VBD 40404 3539 10 , , , 40404 3539 11 and and CC 40404 3539 12 even even RB 40404 3539 13 their -PRON- PRP$ 40404 3539 14 minute minute JJ 40404 3539 15 grains grain NNS 40404 3539 16 , , , 40404 3539 17 as as IN 40404 3539 18 one one PRP 40404 3539 19 may may MD 40404 3539 20 see see VB 40404 3539 21 with with IN 40404 3539 22 a a DT 40404 3539 23 microscope microscope NN 40404 3539 24 , , , 40404 3539 25 have have VBP 40404 3539 26 often often RB 40404 3539 27 been be VBN 40404 3539 28 puckered pucker VBN 40404 3539 29 , , , 40404 3539 30 broken break VBN 40404 3539 31 , , , 40404 3539 32 and and CC 40404 3539 33 crushed crush VBN 40404 3539 34 to to IN 40404 3539 35 powder powder NN 40404 3539 36 . . . 40404 3540 1 It -PRON- PRP 40404 3540 2 is be VBZ 40404 3540 3 to to IN 40404 3540 4 these these DT 40404 3540 5 mechanical mechanical JJ 40404 3540 6 movements movement NNS 40404 3540 7 and and CC 40404 3540 8 strains strain NNS 40404 3540 9 which which WDT 40404 3540 10 the the DT 40404 3540 11 rocks rock NNS 40404 3540 12 have have VBP 40404 3540 13 suffered suffer VBN 40404 3540 14 in in IN 40404 3540 15 every every DT 40404 3540 16 part part NN 40404 3540 17 that that WDT 40404 3540 18 we -PRON- PRP 40404 3540 19 may may MD 40404 3540 20 attribute attribute VB 40404 3540 21 their -PRON- PRP$ 40404 3540 22 metamorphism metamorphism NN 40404 3540 23 , , , 40404 3540 24 and and CC 40404 3540 25 the the DT 40404 3540 26 degree degree NN 40404 3540 27 to to TO 40404 3540 28 which which WDT 40404 3540 29 they -PRON- PRP 40404 3540 30 have have VBP 40404 3540 31 been be VBN 40404 3540 32 changed change VBN 40404 3540 33 is be VBZ 40404 3540 34 in in IN 40404 3540 35 direct direct JJ 40404 3540 36 proportion proportion NN 40404 3540 37 to to IN 40404 3540 38 the the DT 40404 3540 39 degree degree NN 40404 3540 40 to to TO 40404 3540 41 which which WDT 40404 3540 42 they -PRON- PRP 40404 3540 43 have have VBP 40404 3540 44 been be VBN 40404 3540 45 deformed deform VBN 40404 3540 46 and and CC 40404 3540 47 mashed mash VBN 40404 3540 48 . . . 40404 3541 1 Other other JJ 40404 3541 2 factors factor NNS 40404 3541 3 , , , 40404 3541 4 however however RB 40404 3541 5 , , , 40404 3541 6 have have VBP 40404 3541 7 played play VBN 40404 3541 8 important important JJ 40404 3541 9 parts part NNS 40404 3541 10 . . . 40404 3542 1 Rock rock NN 40404 3542 2 crushing crushing NN 40404 3542 3 develops develop VBZ 40404 3542 4 heat heat NN 40404 3542 5 , , , 40404 3542 6 and and CC 40404 3542 7 allows allow VBZ 40404 3542 8 a a DT 40404 3542 9 freer free JJR 40404 3542 10 circulation circulation NN 40404 3542 11 of of IN 40404 3542 12 heated heated JJ 40404 3542 13 waters water NNS 40404 3542 14 and and CC 40404 3542 15 vapors vapor NNS 40404 3542 16 . . . 40404 3543 1 Thus thus RB 40404 3543 2 chemical chemical JJ 40404 3543 3 reactions reaction NNS 40404 3543 4 are be VBP 40404 3543 5 greatly greatly RB 40404 3543 6 quickened quicken VBN 40404 3543 7 ; ; : 40404 3543 8 minerals mineral NNS 40404 3543 9 are be VBP 40404 3543 10 dissolved dissolve VBN 40404 3543 11 and and CC 40404 3543 12 redeposited redeposit VBN 40404 3543 13 in in IN 40404 3543 14 new new JJ 40404 3543 15 positions position NNS 40404 3543 16 , , , 40404 3543 17 or or CC 40404 3543 18 their -PRON- PRP$ 40404 3543 19 chemical chemical JJ 40404 3543 20 constituents constituent NNS 40404 3543 21 may may MD 40404 3543 22 recombine recombine VB 40404 3543 23 in in IN 40404 3543 24 new new JJ 40404 3543 25 minerals mineral NNS 40404 3543 26 , , , 40404 3543 27 entirely entirely RB 40404 3543 28 changing change VBG 40404 3543 29 the the DT 40404 3543 30 nature nature NN 40404 3543 31 of of IN 40404 3543 32 the the DT 40404 3543 33 rock rock NN 40404 3543 34 , , , 40404 3543 35 as as IN 40404 3543 36 when when WRB 40404 3543 37 , , , 40404 3543 38 for for IN 40404 3543 39 example example NN 40404 3543 40 , , , 40404 3543 41 feldspar feldspar NN 40404 3543 42 recrystallizes recrystallize VBZ 40404 3543 43 as as IN 40404 3543 44 quartz quartz NNP 40404 3543 45 and and CC 40404 3543 46 mica mica NNP 40404 3543 47 . . . 40404 3544 1 Early early JJ 40404 3544 2 stages stage NNS 40404 3544 3 of of IN 40404 3544 4 metamorphism metamorphism NN 40404 3544 5 are be VBP 40404 3544 6 seen see VBN 40404 3544 7 in in IN 40404 3544 8 _ _ NNP 40404 3544 9 slate slate NNP 40404 3544 10 _ _ NNP 40404 3544 11 . . . 40404 3545 1 Pressure pressure NN 40404 3545 2 has have VBZ 40404 3545 3 hardened harden VBN 40404 3545 4 the the DT 40404 3545 5 marine marine JJ 40404 3545 6 muds mud NNS 40404 3545 7 , , , 40404 3545 8 the the DT 40404 3545 9 arkose arkose NN 40404 3545 10 ( ( -LRB- 40404 3545 11 p. p. NN 40404 3545 12 186 186 CD 40404 3545 13 ) ) -RRB- 40404 3545 14 , , , 40404 3545 15 or or CC 40404 3545 16 the the DT 40404 3545 17 volcanic volcanic JJ 40404 3545 18 ash ash NN 40404 3545 19 from from IN 40404 3545 20 which which WDT 40404 3545 21 slates slate NNS 40404 3545 22 are be VBP 40404 3545 23 derived derive VBN 40404 3545 24 , , , 40404 3545 25 and and CC 40404 3545 26 has have VBZ 40404 3545 27 caused cause VBN 40404 3545 28 them -PRON- PRP 40404 3545 29 to to TO 40404 3545 30 cleave cleave VB 40404 3545 31 by by IN 40404 3545 32 the the DT 40404 3545 33 rearrangement rearrangement NN 40404 3545 34 of of IN 40404 3545 35 their -PRON- PRP$ 40404 3545 36 particles particle NNS 40404 3545 37 . . . 40404 3546 1 Under under IN 40404 3546 2 somewhat somewhat RB 40404 3546 3 greater great JJR 40404 3546 4 pressure pressure NN 40404 3546 5 , , , 40404 3546 6 slate slate NN 40404 3546 7 becomes become VBZ 40404 3546 8 _ _ NNP 40404 3546 9 phyllite phyllite NN 40404 3546 10 _ _ NNP 40404 3546 11 , , , 40404 3546 12 a a DT 40404 3546 13 clay clay NN 40404 3546 14 slate slate NN 40404 3546 15 whose whose WP$ 40404 3546 16 cleavage cleavage NN 40404 3546 17 surfaces surface NNS 40404 3546 18 are be VBP 40404 3546 19 lustrous lustrous JJ 40404 3546 20 with with IN 40404 3546 21 flat flat RB 40404 3546 22 - - HYPH 40404 3546 23 lying lie VBG 40404 3546 24 mica mica NNP 40404 3546 25 flakes flake NNS 40404 3546 26 . . . 40404 3547 1 The the DT 40404 3547 2 same same JJ 40404 3547 3 pressure pressure NN 40404 3547 4 which which WDT 40404 3547 5 has have VBZ 40404 3547 6 caused cause VBN 40404 3547 7 the the DT 40404 3547 8 rock rock NN 40404 3547 9 to to IN 40404 3547 10 cleave cleave NNP 40404 3547 11 has have VBZ 40404 3547 12 set set VBN 40404 3547 13 free free JJ 40404 3547 14 some some DT 40404 3547 15 of of IN 40404 3547 16 its -PRON- PRP$ 40404 3547 17 mineral mineral NN 40404 3547 18 constituents constituent NNS 40404 3547 19 along along IN 40404 3547 20 the the DT 40404 3547 21 cleavage cleavage NN 40404 3547 22 planes plane NNS 40404 3547 23 to to TO 40404 3547 24 crystallize crystallize VB 40404 3547 25 there there RB 40404 3547 26 as as IN 40404 3547 27 mica mica NNP 40404 3547 28 . . . 40404 3548 1 [ [ -LRB- 40404 3548 2 Illustration illustration NN 40404 3548 3 : : : 40404 3548 4 Fig Fig NNP 40404 3548 5 . . . 40404 3549 1 255 255 CD 40404 3549 2 . . . 40404 3550 1 A a DT 40404 3550 2 Foliated Foliated NNP 40404 3550 3 Rock Rock NNP 40404 3550 4 ] ] -RRB- 40404 3550 5 = = VBZ 40404 3550 6 Foliation.= Foliation.= NNP 40404 3550 7 Under under IN 40404 3550 8 still still RB 40404 3550 9 stronger strong JJR 40404 3550 10 pressure pressure NN 40404 3550 11 the the DT 40404 3550 12 whole whole JJ 40404 3550 13 structure structure NN 40404 3550 14 of of IN 40404 3550 15 the the DT 40404 3550 16 rock rock NN 40404 3550 17 is be VBZ 40404 3550 18 altered alter VBN 40404 3550 19 . . . 40404 3551 1 The the DT 40404 3551 2 minerals mineral NNS 40404 3551 3 of of IN 40404 3551 4 which which WDT 40404 3551 5 it -PRON- PRP 40404 3551 6 is be VBZ 40404 3551 7 composed compose VBN 40404 3551 8 , , , 40404 3551 9 and and CC 40404 3551 10 the the DT 40404 3551 11 new new JJ 40404 3551 12 minerals mineral NNS 40404 3551 13 which which WDT 40404 3551 14 develop develop VBP 40404 3551 15 by by IN 40404 3551 16 heat heat NN 40404 3551 17 and and CC 40404 3551 18 pressure pressure NN 40404 3551 19 , , , 40404 3551 20 arrange arrange VB 40404 3551 21 themselves -PRON- PRP 40404 3551 22 along along IN 40404 3551 23 planes plane NNS 40404 3551 24 of of IN 40404 3551 25 cleavage cleavage NN 40404 3551 26 or or CC 40404 3551 27 of of IN 40404 3551 28 shear shear NN 40404 3551 29 in in IN 40404 3551 30 rudely rudely RB 40404 3551 31 parallel parallel JJ 40404 3551 32 leaves leave NNS 40404 3551 33 , , , 40404 3551 34 or or CC 40404 3551 35 _ _ NNP 40404 3551 36 folia folia NNP 40404 3551 37 _ _ NNP 40404 3551 38 . . . 40404 3552 1 Of of IN 40404 3552 2 this this DT 40404 3552 3 structure structure NN 40404 3552 4 , , , 40404 3552 5 called call VBD 40404 3552 6 _ _ NNP 40404 3552 7 foliation foliation NN 40404 3552 8 _ _ NNP 40404 3552 9 , , , 40404 3552 10 we -PRON- PRP 40404 3552 11 may may MD 40404 3552 12 distinguish distinguish VB 40404 3552 13 two two CD 40404 3552 14 types,--a types,--a NNP 40404 3552 15 coarser coarser NN 40404 3552 16 feldspathic feldspathic JJ 40404 3552 17 type type NN 40404 3552 18 , , , 40404 3552 19 and and CC 40404 3552 20 a a DT 40404 3552 21 fine fine JJ 40404 3552 22 type type NN 40404 3552 23 in in IN 40404 3552 24 which which WDT 40404 3552 25 other other JJ 40404 3552 26 minerals mineral NNS 40404 3552 27 than than IN 40404 3552 28 feldspar feldspar NNP 40404 3552 29 predominate predominate NN 40404 3552 30 . . . 40404 3553 1 _ _ NNP 40404 3553 2 Gneiss Gneiss NNP 40404 3553 3 _ _ NNP 40404 3553 4 is be VBZ 40404 3553 5 the the DT 40404 3553 6 general general JJ 40404 3553 7 name name NN 40404 3553 8 under under IN 40404 3553 9 which which WDT 40404 3553 10 are be VBP 40404 3553 11 comprised comprise VBN 40404 3553 12 coarsely coarsely RB 40404 3553 13 foliated foliated JJ 40404 3553 14 rocks rock NNS 40404 3553 15 banded band VBN 40404 3553 16 with with IN 40404 3553 17 irregular irregular JJ 40404 3553 18 layers layer NNS 40404 3553 19 of of IN 40404 3553 20 feldspar feldspar NN 40404 3553 21 and and CC 40404 3553 22 other other JJ 40404 3553 23 minerals mineral NNS 40404 3553 24 . . . 40404 3554 1 The the DT 40404 3554 2 gneisses gneiss NNS 40404 3554 3 appear appear VBP 40404 3554 4 to to TO 40404 3554 5 be be VB 40404 3554 6 due due JJ 40404 3554 7 in in IN 40404 3554 8 many many JJ 40404 3554 9 cases case NNS 40404 3554 10 to to IN 40404 3554 11 the the DT 40404 3554 12 crushing crushing NN 40404 3554 13 and and CC 40404 3554 14 shearing shearing NN 40404 3554 15 of of IN 40404 3554 16 deep deep JJ 40404 3554 17 - - HYPH 40404 3554 18 seated seat VBN 40404 3554 19 igneous igneous JJ 40404 3554 20 rocks rock NNS 40404 3554 21 , , , 40404 3554 22 such such JJ 40404 3554 23 as as IN 40404 3554 24 granite granite NN 40404 3554 25 and and CC 40404 3554 26 gabbro gabbro NN 40404 3554 27 . . . 40404 3555 1 _ _ NNP 40404 3555 2 The the DT 40404 3555 3 crystalline crystalline JJ 40404 3555 4 schists schist NNS 40404 3555 5 _ _ NNP 40404 3555 6 , , , 40404 3555 7 representing represent VBG 40404 3555 8 the the DT 40404 3555 9 finer fine JJR 40404 3555 10 types type NNS 40404 3555 11 of of IN 40404 3555 12 foliation foliation NN 40404 3555 13 , , , 40404 3555 14 consist consist VB 40404 3555 15 of of IN 40404 3555 16 thin thin JJ 40404 3555 17 , , , 40404 3555 18 parallel parallel NN 40404 3555 19 , , , 40404 3555 20 crystalline crystalline NN 40404 3555 21 leaves leave NNS 40404 3555 22 , , , 40404 3555 23 which which WDT 40404 3555 24 are be VBP 40404 3555 25 often often RB 40404 3555 26 remarkably remarkably RB 40404 3555 27 crumpled crumple VBN 40404 3555 28 . . . 40404 3556 1 These these DT 40404 3556 2 folia folia NN 40404 3556 3 can can MD 40404 3556 4 be be VB 40404 3556 5 distinguished distinguish VBN 40404 3556 6 from from IN 40404 3556 7 the the DT 40404 3556 8 laminae laminae NN 40404 3556 9 of of IN 40404 3556 10 sedimentary sedimentary JJ 40404 3556 11 rocks rock NNS 40404 3556 12 by by IN 40404 3556 13 their -PRON- PRP$ 40404 3556 14 lenticular lenticular NN 40404 3556 15 form form NN 40404 3556 16 and and CC 40404 3556 17 lack lack NN 40404 3556 18 of of IN 40404 3556 19 continuity continuity NN 40404 3556 20 , , , 40404 3556 21 and and CC 40404 3556 22 especially especially RB 40404 3556 23 by by IN 40404 3556 24 the the DT 40404 3556 25 fact fact NN 40404 3556 26 that that IN 40404 3556 27 they -PRON- PRP 40404 3556 28 consist consist VBP 40404 3556 29 of of IN 40404 3556 30 platy platy NNS 40404 3556 31 , , , 40404 3556 32 crystalline crystalline NN 40404 3556 33 grains grain NNS 40404 3556 34 , , , 40404 3556 35 and and CC 40404 3556 36 not not RB 40404 3556 37 of of IN 40404 3556 38 particles particle NNS 40404 3556 39 rounded round VBN 40404 3556 40 by by IN 40404 3556 41 wear wear NN 40404 3556 42 . . . 40404 3557 1 _ _ NNP 40404 3557 2 Mica Mica NNP 40404 3557 3 schist schist NN 40404 3557 4 _ _ NNP 40404 3557 5 , , , 40404 3557 6 the the DT 40404 3557 7 most most RBS 40404 3557 8 common common JJ 40404 3557 9 of of IN 40404 3557 10 schists schist NNS 40404 3557 11 , , , 40404 3557 12 and and CC 40404 3557 13 in in IN 40404 3557 14 fact fact NN 40404 3557 15 of of IN 40404 3557 16 all all DT 40404 3557 17 metamorphic metamorphic JJ 40404 3557 18 rocks rock NNS 40404 3557 19 , , , 40404 3557 20 is be VBZ 40404 3557 21 composed compose VBN 40404 3557 22 of of IN 40404 3557 23 mica mica NNP 40404 3557 24 and and CC 40404 3557 25 quartz quartz NNP 40404 3557 26 in in IN 40404 3557 27 alternating alternate VBG 40404 3557 28 wavy wavy NNP 40404 3557 29 folia folia NNP 40404 3557 30 . . . 40404 3558 1 All all DT 40404 3558 2 gradations gradation NNS 40404 3558 3 between between IN 40404 3558 4 it -PRON- PRP 40404 3558 5 and and CC 40404 3558 6 phyllite phyllite NN 40404 3558 7 may may MD 40404 3558 8 be be VB 40404 3558 9 traced trace VBN 40404 3558 10 , , , 40404 3558 11 and and CC 40404 3558 12 in in IN 40404 3558 13 many many JJ 40404 3558 14 cases case NNS 40404 3558 15 we -PRON- PRP 40404 3558 16 may may MD 40404 3558 17 prove prove VB 40404 3558 18 it -PRON- PRP 40404 3558 19 due due IN 40404 3558 20 to to IN 40404 3558 21 the the DT 40404 3558 22 metamorphism metamorphism NN 40404 3558 23 of of IN 40404 3558 24 slates slate NNS 40404 3558 25 and and CC 40404 3558 26 shales shale NNS 40404 3558 27 . . . 40404 3559 1 It -PRON- PRP 40404 3559 2 is be VBZ 40404 3559 3 widespread widespread JJ 40404 3559 4 in in IN 40404 3559 5 New New NNP 40404 3559 6 England England NNP 40404 3559 7 and and CC 40404 3559 8 along along IN 40404 3559 9 the the DT 40404 3559 10 eastern eastern JJ 40404 3559 11 side side NN 40404 3559 12 of of IN 40404 3559 13 the the DT 40404 3559 14 Appalachians Appalachians NNPS 40404 3559 15 . . . 40404 3560 1 _ _ NNP 40404 3560 2 Talc Talc NNP 40404 3560 3 schist schist NN 40404 3560 4 _ _ NNP 40404 3560 5 consists consist VBZ 40404 3560 6 of of IN 40404 3560 7 quartz quartz NNP 40404 3560 8 and and CC 40404 3560 9 _ _ NNP 40404 3560 10 talc talc NNP 40404 3560 11 _ _ NNP 40404 3560 12 , , , 40404 3560 13 a a DT 40404 3560 14 light light JJ 40404 3560 15 - - HYPH 40404 3560 16 colored colored JJ 40404 3560 17 magnesian magnesian JJ 40404 3560 18 mineral mineral NN 40404 3560 19 of of IN 40404 3560 20 greasy greasy NNP 40404 3560 21 feel feel NNP 40404 3560 22 , , , 40404 3560 23 and and CC 40404 3560 24 so so RB 40404 3560 25 soft soft JJ 40404 3560 26 that that IN 40404 3560 27 it -PRON- PRP 40404 3560 28 can can MD 40404 3560 29 be be VB 40404 3560 30 scratched scratch VBN 40404 3560 31 with with IN 40404 3560 32 the the DT 40404 3560 33 thumb thumb NN 40404 3560 34 nail nail NN 40404 3560 35 . . . 40404 3561 1 _ _ NNP 40404 3561 2 Hornblende Hornblende NNP 40404 3561 3 schist schist NN 40404 3561 4 _ _ NNP 40404 3561 5 , , , 40404 3561 6 resulting result VBG 40404 3561 7 in in IN 40404 3561 8 many many JJ 40404 3561 9 cases case NNS 40404 3561 10 from from IN 40404 3561 11 the the DT 40404 3561 12 foliation foliation NN 40404 3561 13 of of IN 40404 3561 14 basic basic JJ 40404 3561 15 igneous igneous JJ 40404 3561 16 rocks rock NNS 40404 3561 17 , , , 40404 3561 18 is be VBZ 40404 3561 19 made make VBN 40404 3561 20 of of IN 40404 3561 21 folia folia NNP 40404 3561 22 of of IN 40404 3561 23 hornblende hornblende NNP 40404 3561 24 alternating alternate VBG 40404 3561 25 with with IN 40404 3561 26 bands band NNS 40404 3561 27 of of IN 40404 3561 28 quartz quartz NN 40404 3561 29 and and CC 40404 3561 30 feldspar feldspar NNP 40404 3561 31 . . . 40404 3562 1 Hornblende hornblende NN 40404 3562 2 schist schist NN 40404 3562 3 is be VBZ 40404 3562 4 common common JJ 40404 3562 5 over over IN 40404 3562 6 large large JJ 40404 3562 7 areas area NNS 40404 3562 8 in in IN 40404 3562 9 the the DT 40404 3562 10 Lake Lake NNP 40404 3562 11 Superior Superior NNP 40404 3562 12 region region NN 40404 3562 13 . . . 40404 3563 1 _ _ NNP 40404 3563 2 Quartz Quartz NNP 40404 3563 3 schist schist NN 40404 3563 4 _ _ NNP 40404 3563 5 is be VBZ 40404 3563 6 produced produce VBN 40404 3563 7 from from IN 40404 3563 8 quartzite quartzite JJ 40404 3563 9 by by IN 40404 3563 10 the the DT 40404 3563 11 development development NN 40404 3563 12 of of IN 40404 3563 13 fine fine JJ 40404 3563 14 folia folia NNP 40404 3563 15 of of IN 40404 3563 16 mica mica NNP 40404 3563 17 along along IN 40404 3563 18 planes plane NNS 40404 3563 19 of of IN 40404 3563 20 shear shear NN 40404 3563 21 . . . 40404 3564 1 All all DT 40404 3564 2 gradations gradation NNS 40404 3564 3 may may MD 40404 3564 4 be be VB 40404 3564 5 found find VBN 40404 3564 6 between between IN 40404 3564 7 it -PRON- PRP 40404 3564 8 and and CC 40404 3564 9 unfoliated unfoliated JJ 40404 3564 10 quartzite quartzite NN 40404 3564 11 on on IN 40404 3564 12 the the DT 40404 3564 13 one one CD 40404 3564 14 hand hand NN 40404 3564 15 and and CC 40404 3564 16 mica mica NNP 40404 3564 17 schist schist NN 40404 3564 18 on on IN 40404 3564 19 the the DT 40404 3564 20 other other JJ 40404 3564 21 . . . 40404 3565 1 Under under IN 40404 3565 2 the the DT 40404 3565 3 resistless resistless JJ 40404 3565 4 pressure pressure NN 40404 3565 5 of of IN 40404 3565 6 crustal crustal JJ 40404 3565 7 movements movement NNS 40404 3565 8 almost almost RB 40404 3565 9 any any DT 40404 3565 10 rocks rock NNS 40404 3565 11 , , , 40404 3565 12 sandstones sandstone NNS 40404 3565 13 , , , 40404 3565 14 shales shales NNP 40404 3565 15 , , , 40404 3565 16 lavas lavas NN 40404 3565 17 of of IN 40404 3565 18 all all DT 40404 3565 19 kinds kind NNS 40404 3565 20 , , , 40404 3565 21 granites granite NNS 40404 3565 22 , , , 40404 3565 23 diorites diorite NNS 40404 3565 24 , , , 40404 3565 25 and and CC 40404 3565 26 gabbros gabbro NNS 40404 3565 27 may may MD 40404 3565 28 be be VB 40404 3565 29 metamorphosed metamorphose VBN 40404 3565 30 into into IN 40404 3565 31 schists schist NNS 40404 3565 32 by by IN 40404 3565 33 crushing crush VBG 40404 3565 34 and and CC 40404 3565 35 shearing shear VBG 40404 3565 36 . . . 40404 3566 1 Limestones limestone NNS 40404 3566 2 , , , 40404 3566 3 however however RB 40404 3566 4 , , , 40404 3566 5 are be VBP 40404 3566 6 metamorphosed metamorphose VBN 40404 3566 7 by by IN 40404 3566 8 pressure pressure NN 40404 3566 9 into into IN 40404 3566 10 _ _ NNP 40404 3566 11 marble marble NN 40404 3566 12 _ _ NNP 40404 3566 13 , , , 40404 3566 14 the the DT 40404 3566 15 grains grain NNS 40404 3566 16 of of IN 40404 3566 17 carbonate carbonate NN 40404 3566 18 of of IN 40404 3566 19 lime lime NN 40404 3566 20 recrystallizing recrystallizing NN 40404 3566 21 freely freely RB 40404 3566 22 to to IN 40404 3566 23 interlocking interlock VBG 40404 3566 24 crystals crystal NNS 40404 3566 25 of of IN 40404 3566 26 calcite calcite NN 40404 3566 27 . . . 40404 3567 1 These these DT 40404 3567 2 few few JJ 40404 3567 3 examples example NNS 40404 3567 4 must must MD 40404 3567 5 suffice suffice VB 40404 3567 6 of of IN 40404 3567 7 the the DT 40404 3567 8 great great JJ 40404 3567 9 class class NN 40404 3567 10 of of IN 40404 3567 11 metamorphic metamorphic JJ 40404 3567 12 rocks rock NNS 40404 3567 13 . . . 40404 3568 1 As as IN 40404 3568 2 we -PRON- PRP 40404 3568 3 have have VBP 40404 3568 4 seen see VBN 40404 3568 5 , , , 40404 3568 6 they -PRON- PRP 40404 3568 7 owe owe VBP 40404 3568 8 their -PRON- PRP$ 40404 3568 9 origin origin NN 40404 3568 10 to to IN 40404 3568 11 the the DT 40404 3568 12 alteration alteration NN 40404 3568 13 of of IN 40404 3568 14 both both DT 40404 3568 15 of of IN 40404 3568 16 the the DT 40404 3568 17 other other JJ 40404 3568 18 classes class NNS 40404 3568 19 of of IN 40404 3568 20 rocks rock NNS 40404 3568 21 -- -- : 40404 3568 22 the the DT 40404 3568 23 sedimentary sedimentary NN 40404 3568 24 and and CC 40404 3568 25 the the DT 40404 3568 26 igneous igneous JJ 40404 3568 27 -- -- : 40404 3568 28 by by IN 40404 3568 29 heat heat NN 40404 3568 30 and and CC 40404 3568 31 pressure pressure NN 40404 3568 32 , , , 40404 3568 33 assisted assist VBN 40404 3568 34 usually usually RB 40404 3568 35 by by IN 40404 3568 36 the the DT 40404 3568 37 presence presence NN 40404 3568 38 of of IN 40404 3568 39 water water NN 40404 3568 40 . . . 40404 3569 1 The the DT 40404 3569 2 fact fact NN 40404 3569 3 of of IN 40404 3569 4 change change NN 40404 3569 5 is be VBZ 40404 3569 6 seen see VBN 40404 3569 7 in in IN 40404 3569 8 their -PRON- PRP$ 40404 3569 9 hardness hardness NNP 40404 3569 10 arid arid NNP 40404 3569 11 cementation cementation NN 40404 3569 12 , , , 40404 3569 13 their -PRON- PRP$ 40404 3569 14 more more RBR 40404 3569 15 or or CC 40404 3569 16 less less RBR 40404 3569 17 complete complete JJ 40404 3569 18 recrystallization recrystallization NN 40404 3569 19 , , , 40404 3569 20 and and CC 40404 3569 21 their -PRON- PRP$ 40404 3569 22 foliation foliation NN 40404 3569 23 ; ; : 40404 3569 24 but but CC 40404 3569 25 the the DT 40404 3569 26 change change NN 40404 3569 27 is be VBZ 40404 3569 28 often often RB 40404 3569 29 so so RB 40404 3569 30 complete complete JJ 40404 3569 31 that that IN 40404 3569 32 no no DT 40404 3569 33 trace trace NN 40404 3569 34 of of IN 40404 3569 35 their -PRON- PRP$ 40404 3569 36 original original JJ 40404 3569 37 structure structure NN 40404 3569 38 and and CC 40404 3569 39 mineral mineral NN 40404 3569 40 composition composition NN 40404 3569 41 remains remain VBZ 40404 3569 42 to to TO 40404 3569 43 tell tell VB 40404 3569 44 whether whether IN 40404 3569 45 the the DT 40404 3569 46 rocks rock NNS 40404 3569 47 from from IN 40404 3569 48 which which WDT 40404 3569 49 they -PRON- PRP 40404 3569 50 were be VBD 40404 3569 51 derived derive VBN 40404 3569 52 were be VBD 40404 3569 53 sedimentary sedimentary JJ 40404 3569 54 or or CC 40404 3569 55 igneous igneous JJ 40404 3569 56 , , , 40404 3569 57 or or CC 40404 3569 58 to to IN 40404 3569 59 what what WDT 40404 3569 60 variety variety NN 40404 3569 61 of of IN 40404 3569 62 either either DT 40404 3569 63 of of IN 40404 3569 64 these these DT 40404 3569 65 classes class NNS 40404 3569 66 they -PRON- PRP 40404 3569 67 belonged belong VBD 40404 3569 68 . . . 40404 3570 1 [ [ -LRB- 40404 3570 2 Illustration illustration NN 40404 3570 3 : : : 40404 3570 4 Fig Fig NNP 40404 3570 5 . . . 40404 3571 1 256 256 CD 40404 3571 2 . . . 40404 3572 1 Contorted Contorted NNP 40404 3572 2 Gneiss Gneiss NNP 40404 3572 3 , , , 40404 3572 4 the the DT 40404 3572 5 Ottawa Ottawa NNP 40404 3572 6 River River NNP 40404 3572 7 , , , 40404 3572 8 Canada Canada NNP 40404 3572 9 ] ] -RRB- 40404 3572 10 [ [ -LRB- 40404 3572 11 Illustration illustration NN 40404 3572 12 : : : 40404 3572 13 Fig Fig NNP 40404 3572 14 . . . 40404 3573 1 257 257 CD 40404 3573 2 . . . 40404 3574 1 Quartz Quartz NNP 40404 3574 2 Veins Veins NNP 40404 3574 3 in in IN 40404 3574 4 Slate Slate NNP 40404 3574 5 ] ] -RRB- 40404 3574 6 In in IN 40404 3574 7 many many JJ 40404 3574 8 cases case NNS 40404 3574 9 , , , 40404 3574 10 however however RB 40404 3574 11 , , , 40404 3574 12 the the DT 40404 3574 13 early early JJ 40404 3574 14 history history NN 40404 3574 15 of of IN 40404 3574 16 a a DT 40404 3574 17 metamorphic metamorphic JJ 40404 3574 18 rock rock NN 40404 3574 19 can can MD 40404 3574 20 be be VB 40404 3574 21 deciphered decipher VBN 40404 3574 22 . . . 40404 3575 1 Fossils fossil NNS 40404 3575 2 not not RB 40404 3575 3 wholly wholly RB 40404 3575 4 obliterated obliterated JJ 40404 3575 5 may may MD 40404 3575 6 prove prove VB 40404 3575 7 it -PRON- PRP 40404 3575 8 originally originally RB 40404 3575 9 water water NN 40404 3575 10 - - HYPH 40404 3575 11 laid lay VBN 40404 3575 12 . . . 40404 3576 1 Schists schist NNS 40404 3576 2 may may MD 40404 3576 3 contain contain VB 40404 3576 4 rolled roll VBN 40404 3576 5 - - HYPH 40404 3576 6 out out RP 40404 3576 7 pebbles pebble NNS 40404 3576 8 , , , 40404 3576 9 showing show VBG 40404 3576 10 their -PRON- PRP$ 40404 3576 11 derivation derivation NN 40404 3576 12 from from IN 40404 3576 13 a a DT 40404 3576 14 conglomerate conglomerate NN 40404 3576 15 . . . 40404 3577 1 Dikes dike NNS 40404 3577 2 of of IN 40404 3577 3 igneous igneous JJ 40404 3577 4 rocks rock NNS 40404 3577 5 may may MD 40404 3577 6 be be VB 40404 3577 7 followed follow VBN 40404 3577 8 into into IN 40404 3577 9 a a DT 40404 3577 10 region region NN 40404 3577 11 where where WRB 40404 3577 12 they -PRON- PRP 40404 3577 13 have have VBP 40404 3577 14 been be VBN 40404 3577 15 foliated foliate VBN 40404 3577 16 by by IN 40404 3577 17 pressure pressure NN 40404 3577 18 . . . 40404 3578 1 The the DT 40404 3578 2 most most RBS 40404 3578 3 thoroughly thoroughly RB 40404 3578 4 metamorphosed metamorphose VBN 40404 3578 5 rocks rock NNS 40404 3578 6 may may MD 40404 3578 7 sometimes sometimes RB 40404 3578 8 be be VB 40404 3578 9 traced trace VBN 40404 3578 10 out out RP 40404 3578 11 into into IN 40404 3578 12 unaltered unaltered JJ 40404 3578 13 sedimentary sedimentary JJ 40404 3578 14 or or CC 40404 3578 15 igneous igneous JJ 40404 3578 16 rocks rock NNS 40404 3578 17 , , , 40404 3578 18 or or CC 40404 3578 19 among among IN 40404 3578 20 them -PRON- PRP 40404 3578 21 may may MD 40404 3578 22 be be VB 40404 3578 23 found find VBN 40404 3578 24 patches patch NNS 40404 3578 25 of of IN 40404 3578 26 little little JJ 40404 3578 27 change change NN 40404 3578 28 where where WRB 40404 3578 29 their -PRON- PRP$ 40404 3578 30 history history NN 40404 3578 31 maybe maybe RB 40404 3578 32 read read VBD 40404 3578 33 . . . 40404 3579 1 Metamorphism metamorphism NN 40404 3579 2 is be VBZ 40404 3579 3 most most RBS 40404 3579 4 common common JJ 40404 3579 5 among among IN 40404 3579 6 rocks rock NNS 40404 3579 7 of of IN 40404 3579 8 the the DT 40404 3579 9 earlier early RBR 40404 3579 10 geological geological JJ 40404 3579 11 ages age NNS 40404 3579 12 , , , 40404 3579 13 and and CC 40404 3579 14 most most RBS 40404 3579 15 rare rare JJ 40404 3579 16 among among IN 40404 3579 17 rocks rock NNS 40404 3579 18 of of IN 40404 3579 19 recent recent JJ 40404 3579 20 formation formation NN 40404 3579 21 . . . 40404 3580 1 No no RB 40404 3580 2 doubt doubt RB 40404 3580 3 it -PRON- PRP 40404 3580 4 is be VBZ 40404 3580 5 now now RB 40404 3580 6 in in IN 40404 3580 7 progress progress NN 40404 3580 8 where where WRB 40404 3580 9 deep deep RB 40404 3580 10 - - HYPH 40404 3580 11 buried bury VBN 40404 3580 12 sediments sediment NNS 40404 3580 13 are be VBP 40404 3580 14 invaded invade VBN 40404 3580 15 by by IN 40404 3580 16 heat heat NN 40404 3580 17 either either CC 40404 3580 18 from from IN 40404 3580 19 intrusive intrusive JJ 40404 3580 20 igneous igneous JJ 40404 3580 21 masses masse NNS 40404 3580 22 or or CC 40404 3580 23 from from IN 40404 3580 24 the the DT 40404 3580 25 earth earth NN 40404 3580 26 's 's POS 40404 3580 27 interior interior NN 40404 3580 28 , , , 40404 3580 29 or or CC 40404 3580 30 are be VBP 40404 3580 31 suffering suffer VBG 40404 3580 32 slow slow JJ 40404 3580 33 deformation deformation NN 40404 3580 34 under under IN 40404 3580 35 the the DT 40404 3580 36 thrust thrust NN 40404 3580 37 of of IN 40404 3580 38 mountain mountain NN 40404 3580 39 - - HYPH 40404 3580 40 making make VBG 40404 3580 41 forces force NNS 40404 3580 42 . . . 40404 3581 1 Suggest suggest VB 40404 3581 2 how how WRB 40404 3581 3 rocks rock NNS 40404 3581 4 now now RB 40404 3581 5 in in IN 40404 3581 6 process process NN 40404 3581 7 of of IN 40404 3581 8 metamorphism metamorphism NN 40404 3581 9 may may MD 40404 3581 10 sometimes sometimes RB 40404 3581 11 be be VB 40404 3581 12 exposed expose VBN 40404 3581 13 to to IN 40404 3581 14 view view VB 40404 3581 15 . . . 40404 3582 1 Why why WRB 40404 3582 2 do do VBP 40404 3582 3 metamorphic metamorphic JJ 40404 3582 4 rocks rock NNS 40404 3582 5 appear appear VB 40404 3582 6 on on IN 40404 3582 7 the the DT 40404 3582 8 surface surface NN 40404 3582 9 to to IN 40404 3582 10 - - HYPH 40404 3582 11 day day NN 40404 3582 12 ? ? . 40404 3583 1 Mineral Mineral NNP 40404 3583 2 Veins Veins NNP 40404 3583 3 In in IN 40404 3583 4 regions region NNS 40404 3583 5 of of IN 40404 3583 6 folded fold VBN 40404 3583 7 and and CC 40404 3583 8 broken break VBN 40404 3583 9 rocks rock NNS 40404 3583 10 fissures fissure NNS 40404 3583 11 are be VBP 40404 3583 12 frequently frequently RB 40404 3583 13 found find VBN 40404 3583 14 to to TO 40404 3583 15 be be VB 40404 3583 16 filled fill VBN 40404 3583 17 with with IN 40404 3583 18 sheets sheet NNS 40404 3583 19 of of IN 40404 3583 20 crystalline crystalline JJ 40404 3583 21 minerals mineral NNS 40404 3583 22 deposited deposit VBN 40404 3583 23 from from IN 40404 3583 24 solution solution NN 40404 3583 25 by by IN 40404 3583 26 underground underground JJ 40404 3583 27 water water NN 40404 3583 28 , , , 40404 3583 29 and and CC 40404 3583 30 fissures fissure VBZ 40404 3583 31 thus thus RB 40404 3583 32 filled fill VBN 40404 3583 33 are be VBP 40404 3583 34 known know VBN 40404 3583 35 as as IN 40404 3583 36 _ _ NNP 40404 3583 37 mineral mineral NN 40404 3583 38 veins vein NNS 40404 3583 39 _ _ NNP 40404 3583 40 . . . 40404 3584 1 Much much JJ 40404 3584 2 of of IN 40404 3584 3 the the DT 40404 3584 4 importance importance NN 40404 3584 5 of of IN 40404 3584 6 mineral mineral NN 40404 3584 7 veins vein NNS 40404 3584 8 is be VBZ 40404 3584 9 due due JJ 40404 3584 10 to to IN 40404 3584 11 the the DT 40404 3584 12 fact fact NN 40404 3584 13 that that IN 40404 3584 14 they -PRON- PRP 40404 3584 15 are be VBP 40404 3584 16 often often RB 40404 3584 17 metalliferous metalliferous JJ 40404 3584 18 , , , 40404 3584 19 carrying carry VBG 40404 3584 20 valuable valuable JJ 40404 3584 21 native native JJ 40404 3584 22 metals metal NNS 40404 3584 23 and and CC 40404 3584 24 metallic metallic JJ 40404 3584 25 ores ore NNS 40404 3584 26 disseminated disseminate VBN 40404 3584 27 in in IN 40404 3584 28 fine fine JJ 40404 3584 29 particles particle NNS 40404 3584 30 , , , 40404 3584 31 in in IN 40404 3584 32 strings string NNS 40404 3584 33 , , , 40404 3584 34 and and CC 40404 3584 35 sometimes sometimes RB 40404 3584 36 in in IN 40404 3584 37 large large JJ 40404 3584 38 masses masse NNS 40404 3584 39 in in IN 40404 3584 40 the the DT 40404 3584 41 midst midst NN 40404 3584 42 of of IN 40404 3584 43 the the DT 40404 3584 44 valueless valueless NNP 40404 3584 45 nonmetallic nonmetallic JJ 40404 3584 46 minerals mineral NNS 40404 3584 47 which which WDT 40404 3584 48 make make VBP 40404 3584 49 up up RP 40404 3584 50 what what WP 40404 3584 51 is be VBZ 40404 3584 52 known know VBN 40404 3584 53 as as IN 40404 3584 54 the the DT 40404 3584 55 _ _ NNP 40404 3584 56 vein vein NN 40404 3584 57 stone stone NN 40404 3584 58 _ _ NNP 40404 3584 59 . . . 40404 3585 1 The the DT 40404 3585 2 most most RBS 40404 3585 3 common common JJ 40404 3585 4 vein vein NN 40404 3585 5 stones stone NNS 40404 3585 6 are be VBP 40404 3585 7 _ _ NNP 40404 3585 8 quartz quartz NN 40404 3585 9 _ _ NNP 40404 3585 10 and and CC 40404 3585 11 _ _ NNP 40404 3585 12 calcite calcite NN 40404 3585 13 _ _ NNP 40404 3585 14 . . . 40404 3586 1 _ _ NNP 40404 3586 2 fluorite fluorite NNP 40404 3586 3 _ _ NNP 40404 3586 4 ( ( -LRB- 40404 3586 5 calcium calcium NN 40404 3586 6 fluoride fluoride NN 40404 3586 7 ) ) -RRB- 40404 3586 8 , , , 40404 3586 9 a a DT 40404 3586 10 mineral mineral NN 40404 3586 11 harder hard RBR 40404 3586 12 than than IN 40404 3586 13 calcite calcite NN 40404 3586 14 and and CC 40404 3586 15 crystallizing crystallize VBG 40404 3586 16 in in IN 40404 3586 17 cubes cube NNS 40404 3586 18 of of IN 40404 3586 19 various various JJ 40404 3586 20 colors color NNS 40404 3586 21 , , , 40404 3586 22 and and CC 40404 3586 23 _ _ NNP 40404 3586 24 barite barite NN 40404 3586 25 _ _ NNP 40404 3586 26 ( ( -LRB- 40404 3586 27 barium barium NN 40404 3586 28 sulphate sulphate NN 40404 3586 29 ) ) -RRB- 40404 3586 30 , , , 40404 3586 31 a a DT 40404 3586 32 heavy heavy JJ 40404 3586 33 white white JJ 40404 3586 34 mineral mineral NN 40404 3586 35 , , , 40404 3586 36 are be VBP 40404 3586 37 abundant abundant JJ 40404 3586 38 in in IN 40404 3586 39 many many JJ 40404 3586 40 veins vein NNS 40404 3586 41 . . . 40404 3587 1 [ [ -LRB- 40404 3587 2 Illustration illustration NN 40404 3587 3 : : : 40404 3587 4 Fig Fig NNP 40404 3587 5 . . . 40404 3588 1 258 258 CD 40404 3588 2 . . . 40404 3589 1 Placer Placer NNP 40404 3589 2 Deposits deposit NNS 40404 3589 3 in in IN 40404 3589 4 California California NNP 40404 3589 5 _ _ NNP 40404 3589 6 g g NNP 40404 3589 7 _ _ NNP 40404 3589 8 , , , 40404 3589 9 gold gold NN 40404 3589 10 - - HYPH 40404 3589 11 bearing bearing NN 40404 3589 12 gravels gravel NNS 40404 3589 13 in in IN 40404 3589 14 present present JJ 40404 3589 15 river river NN 40404 3589 16 beds bed NNS 40404 3589 17 ; ; : 40404 3589 18 _ _ NNP 40404 3589 19 g g NNP 40404 3589 20 ´ ´ NNP 40404 3589 21 _ _ NNP 40404 3589 22 , , , 40404 3589 23 ancient ancient JJ 40404 3589 24 gold gold NN 40404 3589 25 - - HYPH 40404 3589 26 bearing bear VBG 40404 3589 27 river river NN 40404 3589 28 gravels gravel NNS 40404 3589 29 ; ; : 40404 3589 30 _ _ NNP 40404 3589 31 a a DT 40404 3589 32 _ _ NNP 40404 3589 33 , , , 40404 3589 34 _ _ NNP 40404 3589 35 a a DT 40404 3589 36 _ _ NNP 40404 3589 37 , , , 40404 3589 38 lava lava NN 40404 3589 39 flows flow VBZ 40404 3589 40 capping cap VBG 40404 3589 41 table table NN 40404 3589 42 mountains mountain NNS 40404 3589 43 ; ; : 40404 3589 44 _ _ NNP 40404 3589 45 s s POS 40404 3589 46 _ _ NNP 40404 3589 47 , , , 40404 3589 48 slate slate NN 40404 3589 49 . . . 40404 3590 1 Draw draw VB 40404 3590 2 a a DT 40404 3590 3 diagram diagram NN 40404 3590 4 showing show VBG 40404 3590 5 by by IN 40404 3590 6 dotted dotted JJ 40404 3590 7 lines line NNS 40404 3590 8 conditions condition NNS 40404 3590 9 before before IN 40404 3590 10 the the DT 40404 3590 11 lava lava NN 40404 3590 12 flows flow VBZ 40404 3590 13 occurred occur VBD 40404 3590 14 . . . 40404 3591 1 What what WDT 40404 3591 2 changes change NNS 40404 3591 3 have have VBP 40404 3591 4 since since IN 40404 3591 5 taken take VBN 40404 3591 6 place place NN 40404 3591 7 ? ? . 40404 3591 8 ] ] -RRB- 40404 3592 1 The the DT 40404 3592 2 gold gold NN 40404 3592 3 - - HYPH 40404 3592 4 bearing bear VBG 40404 3592 5 quartz quartz NN 40404 3592 6 veins vein NNS 40404 3592 7 of of IN 40404 3592 8 California California NNP 40404 3592 9 traverse traverse VBP 40404 3592 10 the the DT 40404 3592 11 metamorphic metamorphic JJ 40404 3592 12 slates slate NNS 40404 3592 13 of of IN 40404 3592 14 the the DT 40404 3592 15 Sierra Sierra NNP 40404 3592 16 Nevada Nevada NNP 40404 3592 17 Mountains Mountains NNPS 40404 3592 18 . . . 40404 3593 1 Below below IN 40404 3593 2 the the DT 40404 3593 3 zone zone NN 40404 3593 4 of of IN 40404 3593 5 solution solution NN 40404 3593 6 ( ( -LRB- 40404 3593 7 p. p. NN 40404 3593 8 45 45 CD 40404 3593 9 ) ) -RRB- 40404 3593 10 these these DT 40404 3593 11 veins vein NNS 40404 3593 12 consist consist VBP 40404 3593 13 of of IN 40404 3593 14 a a DT 40404 3593 15 vein vein NN 40404 3593 16 stone stone NN 40404 3593 17 of of IN 40404 3593 18 quartz quartz NNP 40404 3593 19 mingled mingle VBN 40404 3593 20 with with IN 40404 3593 21 pyrite pyrite NNP 40404 3593 22 ( ( -LRB- 40404 3593 23 p. p. NN 40404 3593 24 13 13 CD 40404 3593 25 ) ) -RRB- 40404 3593 26 , , , 40404 3593 27 the the DT 40404 3593 28 latter latter JJ 40404 3593 29 containing contain VBG 40404 3593 30 threads thread NNS 40404 3593 31 and and CC 40404 3593 32 grains grain NNS 40404 3593 33 of of IN 40404 3593 34 native native JJ 40404 3593 35 gold gold NN 40404 3593 36 . . . 40404 3594 1 But but CC 40404 3594 2 to to IN 40404 3594 3 the the DT 40404 3594 4 depth depth NN 40404 3594 5 of of IN 40404 3594 6 about about RB 40404 3594 7 fifty fifty CD 40404 3594 8 feet foot NNS 40404 3594 9 from from IN 40404 3594 10 the the DT 40404 3594 11 surface surface NN 40404 3594 12 the the DT 40404 3594 13 pyrite pyrite NN 40404 3594 14 of of IN 40404 3594 15 the the DT 40404 3594 16 vein vein NN 40404 3594 17 has have VBZ 40404 3594 18 been be VBN 40404 3594 19 dissolved dissolve VBN 40404 3594 20 , , , 40404 3594 21 leaving leave VBG 40404 3594 22 a a DT 40404 3594 23 rusty rusty JJ 40404 3594 24 , , , 40404 3594 25 cellular cellular JJ 40404 3594 26 quartz quartz NN 40404 3594 27 with with IN 40404 3594 28 grains grain NNS 40404 3594 29 of of IN 40404 3594 30 the the DT 40404 3594 31 insoluble insoluble JJ 40404 3594 32 gold gold NN 40404 3594 33 scattered scatter VBN 40404 3594 34 through through IN 40404 3594 35 it -PRON- PRP 40404 3594 36 . . . 40404 3595 1 The the DT 40404 3595 2 _ _ NNP 40404 3595 3 placer placer NN 40404 3595 4 deposits deposit NNS 40404 3595 5 _ _ NNP 40404 3595 6 of of IN 40404 3595 7 California California NNP 40404 3595 8 and and CC 40404 3595 9 other other JJ 40404 3595 10 regions region NNS 40404 3595 11 are be VBP 40404 3595 12 gold gold NN 40404 3595 13 - - HYPH 40404 3595 14 bearing bear VBG 40404 3595 15 deposits deposit NNS 40404 3595 16 of of IN 40404 3595 17 gravel gravel NN 40404 3595 18 and and CC 40404 3595 19 sand sand NN 40404 3595 20 in in IN 40404 3595 21 river river NN 40404 3595 22 beds bed NNS 40404 3595 23 . . . 40404 3596 1 The the DT 40404 3596 2 heavy heavy JJ 40404 3596 3 gold gold NN 40404 3596 4 is be VBZ 40404 3596 5 apt apt JJ 40404 3596 6 to to TO 40404 3596 7 be be VB 40404 3596 8 found find VBN 40404 3596 9 mostly mostly RB 40404 3596 10 near near RB 40404 3596 11 or or CC 40404 3596 12 upon upon IN 40404 3596 13 the the DT 40404 3596 14 solid solid JJ 40404 3596 15 rock rock NN 40404 3596 16 , , , 40404 3596 17 and and CC 40404 3596 18 its -PRON- PRP$ 40404 3596 19 grains grain NNS 40404 3596 20 , , , 40404 3596 21 like like IN 40404 3596 22 those those DT 40404 3596 23 of of IN 40404 3596 24 the the DT 40404 3596 25 sand sand NN 40404 3596 26 , , , 40404 3596 27 are be VBP 40404 3596 28 always always RB 40404 3596 29 rounded rounded JJ 40404 3596 30 . . . 40404 3597 1 How how WRB 40404 3597 2 the the DT 40404 3597 3 gold gold NN 40404 3597 4 came come VBD 40404 3597 5 in in IN 40404 3597 6 the the DT 40404 3597 7 placers placer NNS 40404 3597 8 we -PRON- PRP 40404 3597 9 may may MD 40404 3597 10 leave leave VB 40404 3597 11 the the DT 40404 3597 12 pupil pupil NN 40404 3597 13 to to TO 40404 3597 14 suggest suggest VB 40404 3597 15 . . . 40404 3598 1 Copper copper NN 40404 3598 2 is be VBZ 40404 3598 3 found find VBN 40404 3598 4 in in IN 40404 3598 5 a a DT 40404 3598 6 number number NN 40404 3598 7 of of IN 40404 3598 8 ores ore NNS 40404 3598 9 , , , 40404 3598 10 and and CC 40404 3598 11 also also RB 40404 3598 12 in in IN 40404 3598 13 the the DT 40404 3598 14 native native JJ 40404 3598 15 metal metal NN 40404 3598 16 . . . 40404 3599 1 Below below IN 40404 3599 2 the the DT 40404 3599 3 zone zone NN 40404 3599 4 of of IN 40404 3599 5 surface surface NN 40404 3599 6 changes change VBZ 40404 3599 7 the the DT 40404 3599 8 ore ore NN 40404 3599 9 of of IN 40404 3599 10 a a DT 40404 3599 11 copper copper NN 40404 3599 12 vein vein NN 40404 3599 13 is be VBZ 40404 3599 14 often often RB 40404 3599 15 a a DT 40404 3599 16 double double JJ 40404 3599 17 sulphide sulphide NN 40404 3599 18 of of IN 40404 3599 19 iron iron NN 40404 3599 20 and and CC 40404 3599 21 copper copper NN 40404 3599 22 called call VBD 40404 3599 23 _ _ NNP 40404 3599 24 chalcopyrite chalcopyrite JJ 40404 3599 25 _ _ NNP 40404 3599 26 , , , 40404 3599 27 a a DT 40404 3599 28 mineral mineral NN 40404 3599 29 softer soft JJR 40404 3599 30 than than IN 40404 3599 31 pyrite pyrite JJ 40404 3599 32 -- -- : 40404 3599 33 it -PRON- PRP 40404 3599 34 can can MD 40404 3599 35 easily easily RB 40404 3599 36 be be VB 40404 3599 37 scratched scratch VBN 40404 3599 38 with with IN 40404 3599 39 a a DT 40404 3599 40 knife knife NN 40404 3599 41 -- -- : 40404 3599 42 and and CC 40404 3599 43 deeper deeply RBR 40404 3599 44 yellow yellow JJ 40404 3599 45 in in IN 40404 3599 46 color color NN 40404 3599 47 . . . 40404 3600 1 For for IN 40404 3600 2 several several JJ 40404 3600 3 score score NN 40404 3600 4 of of IN 40404 3600 5 feet foot NNS 40404 3600 6 below below IN 40404 3600 7 the the DT 40404 3600 8 ground ground NN 40404 3600 9 the the DT 40404 3600 10 vein vein NN 40404 3600 11 may may MD 40404 3600 12 consist consist VB 40404 3600 13 of of IN 40404 3600 14 rusty rusty JJ 40404 3600 15 quartz quartz NN 40404 3600 16 from from IN 40404 3600 17 which which WDT 40404 3600 18 the the DT 40404 3600 19 metallic metallic JJ 40404 3600 20 ores ore NNS 40404 3600 21 have have VBP 40404 3600 22 been be VBN 40404 3600 23 dissolved dissolve VBN 40404 3600 24 ; ; : 40404 3600 25 but but CC 40404 3600 26 at at IN 40404 3600 27 the the DT 40404 3600 28 base base NN 40404 3600 29 of of IN 40404 3600 30 the the DT 40404 3600 31 zone zone NN 40404 3600 32 of of IN 40404 3600 33 solution solution NN 40404 3600 34 we -PRON- PRP 40404 3600 35 may may MD 40404 3600 36 find find VB 40404 3600 37 exceedingly exceedingly RB 40404 3600 38 rich rich JJ 40404 3600 39 deposits deposit NNS 40404 3600 40 of of IN 40404 3600 41 copper copper NN 40404 3600 42 ores,--copper ores,--copper NN 40404 3600 43 sulphides sulphide NNS 40404 3600 44 , , , 40404 3600 45 red red JJ 40404 3600 46 and and CC 40404 3600 47 black black JJ 40404 3600 48 copper copper NN 40404 3600 49 oxides oxide NNS 40404 3600 50 , , , 40404 3600 51 and and CC 40404 3600 52 green green JJ 40404 3600 53 and and CC 40404 3600 54 blue blue JJ 40404 3600 55 copper copper NN 40404 3600 56 carbonates carbonate NNS 40404 3600 57 , , , 40404 3600 58 which which WDT 40404 3600 59 have have VBP 40404 3600 60 clearly clearly RB 40404 3600 61 been be VBN 40404 3600 62 brought bring VBN 40404 3600 63 down down RP 40404 3600 64 in in IN 40404 3600 65 solution solution NN 40404 3600 66 from from IN 40404 3600 67 the the DT 40404 3600 68 leached leached JJ 40404 3600 69 upper upper JJ 40404 3600 70 portion portion NN 40404 3600 71 of of IN 40404 3600 72 the the DT 40404 3600 73 vein vein NN 40404 3600 74 . . . 40404 3601 1 = = NFP 40404 3601 2 Origin origin NN 40404 3601 3 of of IN 40404 3601 4 mineral mineral NN 40404 3601 5 veins.= veins.= NNP 40404 3601 6 Both both DT 40404 3601 7 vein vein NN 40404 3601 8 stones stone NNS 40404 3601 9 and and CC 40404 3601 10 ores ore NNS 40404 3601 11 have have VBP 40404 3601 12 been be VBN 40404 3601 13 deposited deposit VBN 40404 3601 14 slowly slowly RB 40404 3601 15 from from IN 40404 3601 16 solution solution NN 40404 3601 17 in in IN 40404 3601 18 water water NN 40404 3601 19 , , , 40404 3601 20 much much RB 40404 3601 21 as as IN 40404 3601 22 crystals crystal NNS 40404 3601 23 of of IN 40404 3601 24 salt salt NN 40404 3601 25 are be VBP 40404 3601 26 deposited deposit VBN 40404 3601 27 on on IN 40404 3601 28 the the DT 40404 3601 29 sides side NNS 40404 3601 30 of of IN 40404 3601 31 a a DT 40404 3601 32 jar jar NN 40404 3601 33 of of IN 40404 3601 34 saturated saturate VBN 40404 3601 35 brine brine NN 40404 3601 36 . . . 40404 3602 1 In in IN 40404 3602 2 our -PRON- PRP$ 40404 3602 3 study study NN 40404 3602 4 of of IN 40404 3602 5 underground underground JJ 40404 3602 6 water water NN 40404 3602 7 we -PRON- PRP 40404 3602 8 learned learn VBD 40404 3602 9 that that IN 40404 3602 10 it -PRON- PRP 40404 3602 11 is be VBZ 40404 3602 12 everywhere everywhere RB 40404 3602 13 circulating circulate VBG 40404 3602 14 through through IN 40404 3602 15 the the DT 40404 3602 16 permeable permeable JJ 40404 3602 17 rocks rock NNS 40404 3602 18 of of IN 40404 3602 19 the the DT 40404 3602 20 crust crust NN 40404 3602 21 , , , 40404 3602 22 descending descend VBG 40404 3602 23 to to IN 40404 3602 24 profound profound JJ 40404 3602 25 depths depth NNS 40404 3602 26 under under IN 40404 3602 27 the the DT 40404 3602 28 action action NN 40404 3602 29 of of IN 40404 3602 30 gravity gravity NN 40404 3602 31 and and CC 40404 3602 32 again again RB 40404 3602 33 driven drive VBN 40404 3602 34 to to IN 40404 3602 35 the the DT 40404 3602 36 surface surface NN 40404 3602 37 by by IN 40404 3602 38 hydrostatic hydrostatic JJ 40404 3602 39 pressure pressure NN 40404 3602 40 . . . 40404 3603 1 Now now RB 40404 3603 2 fissures fissure VBZ 40404 3603 3 , , , 40404 3603 4 wherever wherever WRB 40404 3603 5 they -PRON- PRP 40404 3603 6 occur occur VBP 40404 3603 7 , , , 40404 3603 8 form form VB 40404 3603 9 the the DT 40404 3603 10 trunk trunk NN 40404 3603 11 channels channel NNS 40404 3603 12 of of IN 40404 3603 13 the the DT 40404 3603 14 underground underground JJ 40404 3603 15 circulation circulation NN 40404 3603 16 . . . 40404 3604 1 Water water NN 40404 3604 2 descends descend VBZ 40404 3604 3 from from IN 40404 3604 4 the the DT 40404 3604 5 surface surface NN 40404 3604 6 along along IN 40404 3604 7 these these DT 40404 3604 8 rifts rift NNS 40404 3604 9 ; ; : 40404 3604 10 it -PRON- PRP 40404 3604 11 moves move VBZ 40404 3604 12 laterally laterally RB 40404 3604 13 from from IN 40404 3604 14 either either DT 40404 3604 15 side side NN 40404 3604 16 to to IN 40404 3604 17 the the DT 40404 3604 18 fissure fissure NN 40404 3604 19 plane plane NN 40404 3604 20 , , , 40404 3604 21 just just RB 40404 3604 22 as as IN 40404 3604 23 ground ground NN 40404 3604 24 water water NN 40404 3604 25 seeps seep VBZ 40404 3604 26 through through IN 40404 3604 27 the the DT 40404 3604 28 surrounding surround VBG 40404 3604 29 rocks rock NNS 40404 3604 30 from from IN 40404 3604 31 every every DT 40404 3604 32 direction direction NN 40404 3604 33 to to IN 40404 3604 34 a a DT 40404 3604 35 well well NN 40404 3604 36 ; ; : 40404 3604 37 and and CC 40404 3604 38 it -PRON- PRP 40404 3604 39 ascends ascend VBZ 40404 3604 40 through through IN 40404 3604 41 these these DT 40404 3604 42 natural natural JJ 40404 3604 43 water water NN 40404 3604 44 ways way NNS 40404 3604 45 as as IN 40404 3604 46 in in IN 40404 3604 47 an an DT 40404 3604 48 artesian artesian JJ 40404 3604 49 well well NN 40404 3604 50 , , , 40404 3604 51 whenever whenever WRB 40404 3604 52 they -PRON- PRP 40404 3604 53 intersect intersect VBP 40404 3604 54 an an DT 40404 3604 55 aquifer aquifer NN 40404 3604 56 in in IN 40404 3604 57 which which WDT 40404 3604 58 water water NN 40404 3604 59 is be VBZ 40404 3604 60 under under IN 40404 3604 61 hydrostatic hydrostatic JJ 40404 3604 62 pressure pressure NN 40404 3604 63 . . . 40404 3605 1 The the DT 40404 3605 2 waters water NNS 40404 3605 3 which which WDT 40404 3605 4 deposit deposit VBP 40404 3605 5 vein vein NN 40404 3605 6 stones stone NNS 40404 3605 7 and and CC 40404 3605 8 ores ore NNS 40404 3605 9 are be VBP 40404 3605 10 commonly commonly RB 40404 3605 11 hot hot JJ 40404 3605 12 , , , 40404 3605 13 and and CC 40404 3605 14 in in IN 40404 3605 15 many many JJ 40404 3605 16 cases case NNS 40404 3605 17 they -PRON- PRP 40404 3605 18 have have VBP 40404 3605 19 derived derive VBN 40404 3605 20 their -PRON- PRP$ 40404 3605 21 heat heat NN 40404 3605 22 from from IN 40404 3605 23 intrusions intrusion NNS 40404 3605 24 of of IN 40404 3605 25 igneous igneous JJ 40404 3605 26 rock rock NN 40404 3605 27 still still RB 40404 3605 28 uncooled uncoole VBN 40404 3605 29 within within IN 40404 3605 30 the the DT 40404 3605 31 crust crust NN 40404 3605 32 . . . 40404 3606 1 The the DT 40404 3606 2 solvent solvent NN 40404 3606 3 power power NN 40404 3606 4 of of IN 40404 3606 5 the the DT 40404 3606 6 water water NN 40404 3606 7 is be VBZ 40404 3606 8 thus thus RB 40404 3606 9 greatly greatly RB 40404 3606 10 increased increase VBN 40404 3606 11 , , , 40404 3606 12 and and CC 40404 3606 13 it -PRON- PRP 40404 3606 14 takes take VBZ 40404 3606 15 up up RP 40404 3606 16 into into IN 40404 3606 17 solution solution NN 40404 3606 18 various various JJ 40404 3606 19 substances substance NNS 40404 3606 20 from from IN 40404 3606 21 the the DT 40404 3606 22 igneous igneous JJ 40404 3606 23 and and CC 40404 3606 24 sedimentary sedimentary JJ 40404 3606 25 rocks rock NNS 40404 3606 26 which which WDT 40404 3606 27 it -PRON- PRP 40404 3606 28 traverses traverse VBZ 40404 3606 29 . . . 40404 3607 1 For for IN 40404 3607 2 various various JJ 40404 3607 3 reasons reason NNS 40404 3607 4 these these DT 40404 3607 5 substances substance NNS 40404 3607 6 stances stance NNS 40404 3607 7 are be VBP 40404 3607 8 deposited deposit VBN 40404 3607 9 in in IN 40404 3607 10 the the DT 40404 3607 11 vein vein NN 40404 3607 12 as as IN 40404 3607 13 ores ores NNP 40404 3607 14 and and CC 40404 3607 15 vein vein NNP 40404 3607 16 stones stone NNS 40404 3607 17 . . . 40404 3608 1 On on IN 40404 3608 2 rising rise VBG 40404 3608 3 through through IN 40404 3608 4 the the DT 40404 3608 5 fissure fissure NN 40404 3608 6 the the DT 40404 3608 7 water water NN 40404 3608 8 cools cool NNS 40404 3608 9 and and CC 40404 3608 10 loses lose VBZ 40404 3608 11 pressure pressure NN 40404 3608 12 , , , 40404 3608 13 and and CC 40404 3608 14 its -PRON- PRP$ 40404 3608 15 capacity capacity NN 40404 3608 16 to to TO 40404 3608 17 hold hold VB 40404 3608 18 minerals mineral NNS 40404 3608 19 in in IN 40404 3608 20 solution solution NN 40404 3608 21 is be VBZ 40404 3608 22 therefore therefore RB 40404 3608 23 lessened lessen VBN 40404 3608 24 . . . 40404 3609 1 Besides besides RB 40404 3609 2 , , , 40404 3609 3 as as IN 40404 3609 4 different different JJ 40404 3609 5 currents current NNS 40404 3609 6 meet meet VBP 40404 3609 7 in in IN 40404 3609 8 the the DT 40404 3609 9 fissure fissure NN 40404 3609 10 , , , 40404 3609 11 some some DT 40404 3609 12 ascending ascend VBG 40404 3609 13 , , , 40404 3609 14 some some DT 40404 3609 15 descending descending JJ 40404 3609 16 , , , 40404 3609 17 and and CC 40404 3609 18 some some DT 40404 3609 19 coming come VBG 40404 3609 20 in in RP 40404 3609 21 from from IN 40404 3609 22 the the DT 40404 3609 23 sides side NNS 40404 3609 24 , , , 40404 3609 25 the the DT 40404 3609 26 chemical chemical NN 40404 3609 27 reaction reaction NN 40404 3609 28 of of IN 40404 3609 29 these these DT 40404 3609 30 various various JJ 40404 3609 31 weak weak JJ 40404 3609 32 solutions solution NNS 40404 3609 33 upon upon IN 40404 3609 34 one one CD 40404 3609 35 another another DT 40404 3609 36 and and CC 40404 3609 37 upon upon IN 40404 3609 38 the the DT 40404 3609 39 walls wall NNS 40404 3609 40 of of IN 40404 3609 41 the the DT 40404 3609 42 vein vein NN 40404 3609 43 precipitates precipitate VBZ 40404 3609 44 the the DT 40404 3609 45 minerals mineral NNS 40404 3609 46 of of IN 40404 3609 47 vein vein NNP 40404 3609 48 stuffs stuff NNS 40404 3609 49 and and CC 40404 3609 50 ores ore NNS 40404 3609 51 . . . 40404 3610 1 As as IN 40404 3610 2 an an DT 40404 3610 3 illustration illustration NN 40404 3610 4 of of IN 40404 3610 5 the the DT 40404 3610 6 method method NN 40404 3610 7 of of IN 40404 3610 8 vein vein NN 40404 3610 9 deposits deposit NNS 40404 3610 10 we -PRON- PRP 40404 3610 11 may may MD 40404 3610 12 cite cite VB 40404 3610 13 the the DT 40404 3610 14 case case NN 40404 3610 15 of of IN 40404 3610 16 a a DT 40404 3610 17 wooden wooden JJ 40404 3610 18 box box NN 40404 3610 19 pipe pipe NN 40404 3610 20 used use VBN 40404 3610 21 in in IN 40404 3610 22 the the DT 40404 3610 23 Comstock Comstock NNP 40404 3610 24 mines mine NNS 40404 3610 25 , , , 40404 3610 26 Nevada Nevada NNP 40404 3610 27 , , , 40404 3610 28 to to TO 40404 3610 29 carry carry VB 40404 3610 30 the the DT 40404 3610 31 hot hot JJ 40404 3610 32 water water NN 40404 3610 33 of of IN 40404 3610 34 the the DT 40404 3610 35 mine mine NN 40404 3610 36 from from IN 40404 3610 37 one one CD 40404 3610 38 level level NN 40404 3610 39 to to IN 40404 3610 40 another another DT 40404 3610 41 , , , 40404 3610 42 which which WDT 40404 3610 43 in in IN 40404 3610 44 ten ten CD 40404 3610 45 years year NNS 40404 3610 46 was be VBD 40404 3610 47 lined line VBN 40404 3610 48 with with IN 40404 3610 49 calcium calcium NN 40404 3610 50 carbonate carbonate NN 40404 3610 51 more more JJR 40404 3610 52 than than IN 40404 3610 53 half half PDT 40404 3610 54 an an DT 40404 3610 55 inch inch NN 40404 3610 56 thick thick JJ 40404 3610 57 . . . 40404 3611 1 The the DT 40404 3611 2 Steamboat Steamboat NNP 40404 3611 3 Springs Springs NNP 40404 3611 4 , , , 40404 3611 5 Nevada Nevada NNP 40404 3611 6 , , , 40404 3611 7 furnish furnish JJ 40404 3611 8 examples example NNS 40404 3611 9 of of IN 40404 3611 10 mineral mineral NN 40404 3611 11 veins vein NNS 40404 3611 12 in in IN 40404 3611 13 process process NN 40404 3611 14 of of IN 40404 3611 15 formation formation NN 40404 3611 16 . . . 40404 3612 1 The the DT 40404 3612 2 steaming steam VBG 40404 3612 3 water water NN 40404 3612 4 rises rise VBZ 40404 3612 5 through through IN 40404 3612 6 fissures fissure NNS 40404 3612 7 in in IN 40404 3612 8 volcanic volcanic JJ 40404 3612 9 rocks rock NNS 40404 3612 10 and and CC 40404 3612 11 is be VBZ 40404 3612 12 now now RB 40404 3612 13 depositing deposit VBG 40404 3612 14 in in IN 40404 3612 15 the the DT 40404 3612 16 rifts rift NNS 40404 3612 17 a a DT 40404 3612 18 vein vein NN 40404 3612 19 stone stone NN 40404 3612 20 of of IN 40404 3612 21 quartz quartz NNP 40404 3612 22 , , , 40404 3612 23 with with IN 40404 3612 24 metallic metallic JJ 40404 3612 25 ores ore NNS 40404 3612 26 of of IN 40404 3612 27 iron iron NN 40404 3612 28 , , , 40404 3612 29 mercury mercury NN 40404 3612 30 , , , 40404 3612 31 lead lead NN 40404 3612 32 , , , 40404 3612 33 and and CC 40404 3612 34 other other JJ 40404 3612 35 metals metal NNS 40404 3612 36 . . . 40404 3613 1 = = NFP 40404 3613 2 Reconcentration.= Reconcentration.= NNP 40404 3613 3 Near near IN 40404 3613 4 the the DT 40404 3613 5 base base NN 40404 3613 6 of of IN 40404 3613 7 the the DT 40404 3613 8 zone zone NN 40404 3613 9 of of IN 40404 3613 10 solution solution NN 40404 3613 11 veins vein NNS 40404 3613 12 are be VBP 40404 3613 13 often often RB 40404 3613 14 stored store VBN 40404 3613 15 with with IN 40404 3613 16 exceptionally exceptionally RB 40404 3613 17 large large JJ 40404 3613 18 and and CC 40404 3613 19 valuable valuable JJ 40404 3613 20 ore ore NN 40404 3613 21 deposits deposit NNS 40404 3613 22 . . . 40404 3614 1 This this DT 40404 3614 2 local local JJ 40404 3614 3 enrichment enrichment NN 40404 3614 4 of of IN 40404 3614 5 the the DT 40404 3614 6 vein vein NN 40404 3614 7 is be VBZ 40404 3614 8 due due JJ 40404 3614 9 to to IN 40404 3614 10 the the DT 40404 3614 11 reconcentration reconcentration NN 40404 3614 12 of of IN 40404 3614 13 its -PRON- PRP$ 40404 3614 14 metalliferous metalliferous JJ 40404 3614 15 ores ore NNS 40404 3614 16 . . . 40404 3615 1 As as IN 40404 3615 2 the the DT 40404 3615 3 surface surface NN 40404 3615 4 of of IN 40404 3615 5 the the DT 40404 3615 6 land land NN 40404 3615 7 is be VBZ 40404 3615 8 slowly slowly RB 40404 3615 9 lowered lower VBN 40404 3615 10 by by IN 40404 3615 11 weathering weather VBG 40404 3615 12 and and CC 40404 3615 13 running running NN 40404 3615 14 water water NN 40404 3615 15 , , , 40404 3615 16 the the DT 40404 3615 17 zone zone NN 40404 3615 18 of of IN 40404 3615 19 solution solution NN 40404 3615 20 is be VBZ 40404 3615 21 lowered lower VBN 40404 3615 22 at at IN 40404 3615 23 an an DT 40404 3615 24 equal equal JJ 40404 3615 25 rate rate NN 40404 3615 26 and and CC 40404 3615 27 encroaches encroache NNS 40404 3615 28 constantly constantly RB 40404 3615 29 on on IN 40404 3615 30 the the DT 40404 3615 31 zone zone NN 40404 3615 32 of of IN 40404 3615 33 cementation cementation NN 40404 3615 34 . . . 40404 3616 1 The the DT 40404 3616 2 minerals mineral NNS 40404 3616 3 of of IN 40404 3616 4 veins vein NNS 40404 3616 5 are be VBP 40404 3616 6 therefore therefore RB 40404 3616 7 constantly constantly RB 40404 3616 8 being be VBG 40404 3616 9 dissolved dissolve VBN 40404 3616 10 along along IN 40404 3616 11 their -PRON- PRP$ 40404 3616 12 upper upper JJ 40404 3616 13 portions portion NNS 40404 3616 14 and and CC 40404 3616 15 carried carry VBD 40404 3616 16 down down RP 40404 3616 17 the the DT 40404 3616 18 fissures fissure NNS 40404 3616 19 by by IN 40404 3616 20 ground ground NN 40404 3616 21 water water NN 40404 3616 22 to to IN 40404 3616 23 lower low JJR 40404 3616 24 levels level NNS 40404 3616 25 , , , 40404 3616 26 where where WRB 40404 3616 27 they -PRON- PRP 40404 3616 28 are be VBP 40404 3616 29 redeposited redeposit VBN 40404 3616 30 . . . 40404 3617 1 Many many JJ 40404 3617 2 of of IN 40404 3617 3 the the DT 40404 3617 4 richest rich JJS 40404 3617 5 ore ore NN 40404 3617 6 deposits deposit NNS 40404 3617 7 are be VBP 40404 3617 8 thus thus RB 40404 3617 9 due due JJ 40404 3617 10 to to IN 40404 3617 11 successive successive JJ 40404 3617 12 concentrations concentration NNS 40404 3617 13 : : : 40404 3617 14 the the DT 40404 3617 15 ores ore NNS 40404 3617 16 were be VBD 40404 3617 17 leached leach VBN 40404 3617 18 originally originally RB 40404 3617 19 from from IN 40404 3617 20 the the DT 40404 3617 21 rocks rock NNS 40404 3617 22 to to IN 40404 3617 23 a a DT 40404 3617 24 large large JJ 40404 3617 25 extent extent NN 40404 3617 26 by by IN 40404 3617 27 laterally laterally RB 40404 3617 28 seeping seep VBG 40404 3617 29 waters water NNS 40404 3617 30 ; ; : 40404 3617 31 they -PRON- PRP 40404 3617 32 were be VBD 40404 3617 33 concentrated concentrate VBN 40404 3617 34 in in IN 40404 3617 35 the the DT 40404 3617 36 ore ore NN 40404 3617 37 deposits deposit NNS 40404 3617 38 of of IN 40404 3617 39 the the DT 40404 3617 40 vein vein NN 40404 3617 41 chiefly chiefly RB 40404 3617 42 by by IN 40404 3617 43 ascending ascend VBG 40404 3617 44 currents current NNS 40404 3617 45 ; ; : 40404 3617 46 they -PRON- PRP 40404 3617 47 have have VBP 40404 3617 48 been be VBN 40404 3617 49 reconcentrated reconcentrate VBN 40404 3617 50 by by IN 40404 3617 51 descending descend VBG 40404 3617 52 waters water NNS 40404 3617 53 in in IN 40404 3617 54 the the DT 40404 3617 55 way way NN 40404 3617 56 just just RB 40404 3617 57 mentioned mention VBN 40404 3617 58 . . . 40404 3618 1 = = NFP 40404 3618 2 The the DT 40404 3618 3 original original JJ 40404 3618 4 source source NN 40404 3618 5 of of IN 40404 3618 6 the the DT 40404 3618 7 metals.= metals.= NNS 40404 3618 8 It -PRON- PRP 40404 3618 9 is be VBZ 40404 3618 10 to to IN 40404 3618 11 the the DT 40404 3618 12 igneous igneous JJ 40404 3618 13 rocks rock NNS 40404 3618 14 that that WDT 40404 3618 15 we -PRON- PRP 40404 3618 16 may may MD 40404 3618 17 look look VB 40404 3618 18 for for IN 40404 3618 19 the the DT 40404 3618 20 original original JJ 40404 3618 21 source source NN 40404 3618 22 of of IN 40404 3618 23 the the DT 40404 3618 24 metals metal NNS 40404 3618 25 of of IN 40404 3618 26 veins vein NNS 40404 3618 27 . . . 40404 3619 1 Lavas Lavas NNP 40404 3619 2 contain contain VBP 40404 3619 3 minute minute NN 40404 3619 4 percentages percentage NNS 40404 3619 5 of of IN 40404 3619 6 various various JJ 40404 3619 7 metallic metallic JJ 40404 3619 8 compounds compound NNS 40404 3619 9 , , , 40404 3619 10 and and CC 40404 3619 11 no no RB 40404 3619 12 doubt doubt RB 40404 3619 13 this this DT 40404 3619 14 was be VBD 40404 3619 15 the the DT 40404 3619 16 case case NN 40404 3619 17 also also RB 40404 3619 18 with with IN 40404 3619 19 the the DT 40404 3619 20 igneous igneous JJ 40404 3619 21 rocks rock NNS 40404 3619 22 which which WDT 40404 3619 23 formed form VBD 40404 3619 24 the the DT 40404 3619 25 original original JJ 40404 3619 26 earth earth NN 40404 3619 27 crust crust NN 40404 3619 28 . . . 40404 3620 1 By by IN 40404 3620 2 the the DT 40404 3620 3 erosion erosion NN 40404 3620 4 of of IN 40404 3620 5 the the DT 40404 3620 6 igneous igneous JJ 40404 3620 7 rocks rock NNS 40404 3620 8 the the DT 40404 3620 9 metals metal NNS 40404 3620 10 have have VBP 40404 3620 11 been be VBN 40404 3620 12 distributed distribute VBN 40404 3620 13 among among IN 40404 3620 14 sedimentary sedimentary JJ 40404 3620 15 strata strata NN 40404 3620 16 , , , 40404 3620 17 and and CC 40404 3620 18 even even RB 40404 3620 19 the the DT 40404 3620 20 sea sea NN 40404 3620 21 has have VBZ 40404 3620 22 taken take VBN 40404 3620 23 into into IN 40404 3620 24 solution solution NN 40404 3620 25 an an DT 40404 3620 26 appreciable appreciable JJ 40404 3620 27 amount amount NN 40404 3620 28 of of IN 40404 3620 29 gold gold NN 40404 3620 30 and and CC 40404 3620 31 other other JJ 40404 3620 32 metals metal NNS 40404 3620 33 , , , 40404 3620 34 but but CC 40404 3620 35 in in IN 40404 3620 36 this this DT 40404 3620 37 widely widely RB 40404 3620 38 diffused diffuse VBN 40404 3620 39 condition condition NN 40404 3620 40 they -PRON- PRP 40404 3620 41 are be VBP 40404 3620 42 wholly wholly RB 40404 3620 43 useless useless JJ 40404 3620 44 to to IN 40404 3620 45 man man NN 40404 3620 46 . . . 40404 3621 1 The the DT 40404 3621 2 concentration concentration NN 40404 3621 3 which which WDT 40404 3621 4 has have VBZ 40404 3621 5 made make VBN 40404 3621 6 them -PRON- PRP 40404 3621 7 available available JJ 40404 3621 8 is be VBZ 40404 3621 9 due due JJ 40404 3621 10 to to IN 40404 3621 11 the the DT 40404 3621 12 interaction interaction NN 40404 3621 13 of of IN 40404 3621 14 many many JJ 40404 3621 15 agencies agency NNS 40404 3621 16 . . . 40404 3622 1 Earth earth NN 40404 3622 2 movements movement NNS 40404 3622 3 fracturing fracture VBG 40404 3622 4 deeply deeply RB 40404 3622 5 the the DT 40404 3622 6 rocks rock NNS 40404 3622 7 of of IN 40404 3622 8 the the DT 40404 3622 9 crust crust NN 40404 3622 10 , , , 40404 3622 11 the the DT 40404 3622 12 intrusion intrusion NN 40404 3622 13 of of IN 40404 3622 14 heated heated JJ 40404 3622 15 masses masse NNS 40404 3622 16 , , , 40404 3622 17 the the DT 40404 3622 18 circulation circulation NN 40404 3622 19 of of IN 40404 3622 20 underground underground JJ 40404 3622 21 waters water NNS 40404 3622 22 , , , 40404 3622 23 have have VBP 40404 3622 24 all all DT 40404 3622 25 coöperated coöperate VBN 40404 3622 26 in in IN 40404 3622 27 the the DT 40404 3622 28 concentration concentration NN 40404 3622 29 of of IN 40404 3622 30 the the DT 40404 3622 31 metals metal NNS 40404 3622 32 of of IN 40404 3622 33 mineral mineral NN 40404 3622 34 veins vein NNS 40404 3622 35 . . . 40404 3623 1 While while IN 40404 3623 2 fissure fissure NN 40404 3623 3 veins vein NNS 40404 3623 4 are be VBP 40404 3623 5 the the DT 40404 3623 6 most most RBS 40404 3623 7 important important JJ 40404 3623 8 of of IN 40404 3623 9 mineral mineral NN 40404 3623 10 veins vein NNS 40404 3623 11 , , , 40404 3623 12 the the DT 40404 3623 13 latter latter JJ 40404 3623 14 term term NN 40404 3623 15 is be VBZ 40404 3623 16 applied apply VBN 40404 3623 17 also also RB 40404 3623 18 to to IN 40404 3623 19 any any DT 40404 3623 20 water water NN 40404 3623 21 way way NN 40404 3623 22 which which WDT 40404 3623 23 has have VBZ 40404 3623 24 been be VBN 40404 3623 25 filled fill VBN 40404 3623 26 by by IN 40404 3623 27 similar similar JJ 40404 3623 28 deposits deposit NNS 40404 3623 29 from from IN 40404 3623 30 solution solution NN 40404 3623 31 . . . 40404 3624 1 Thus thus RB 40404 3624 2 in in IN 40404 3624 3 soluble soluble JJ 40404 3624 4 rocks rock NNS 40404 3624 5 , , , 40404 3624 6 such such JJ 40404 3624 7 as as IN 40404 3624 8 limestones limestone NNS 40404 3624 9 , , , 40404 3624 10 joints joint NNS 40404 3624 11 enlarged enlarge VBN 40404 3624 12 by by IN 40404 3624 13 percolating percolate VBG 40404 3624 14 water water NN 40404 3624 15 are be VBP 40404 3624 16 sometimes sometimes RB 40404 3624 17 filled fill VBN 40404 3624 18 with with IN 40404 3624 19 metalliferous metalliferous JJ 40404 3624 20 deposits deposit NNS 40404 3624 21 , , , 40404 3624 22 as as IN 40404 3624 23 , , , 40404 3624 24 for for IN 40404 3624 25 example example NN 40404 3624 26 , , , 40404 3624 27 the the DT 40404 3624 28 lead lead NN 40404 3624 29 and and CC 40404 3624 30 zinc zinc NN 40404 3624 31 deposits deposit NNS 40404 3624 32 of of IN 40404 3624 33 the the DT 40404 3624 34 upper upper JJ 40404 3624 35 Mississippi Mississippi NNP 40404 3624 36 valley valley NN 40404 3624 37 . . . 40404 3625 1 Even even RB 40404 3625 2 a a DT 40404 3625 3 porous porous JJ 40404 3625 4 aquifer aquifer NN 40404 3625 5 may may MD 40404 3625 6 be be VB 40404 3625 7 made make VBN 40404 3625 8 the the DT 40404 3625 9 seat seat NN 40404 3625 10 of of IN 40404 3625 11 mineral mineral NN 40404 3625 12 deposits deposit NNS 40404 3625 13 , , , 40404 3625 14 as as IN 40404 3625 15 in in IN 40404 3625 16 the the DT 40404 3625 17 case case NN 40404 3625 18 of of IN 40404 3625 19 some some DT 40404 3625 20 copper copper NN 40404 3625 21 - - HYPH 40404 3625 22 bearing bearing NN 40404 3625 23 and and CC 40404 3625 24 silver silver NN 40404 3625 25 - - HYPH 40404 3625 26 bearing bear VBG 40404 3625 27 sandstones sandstone NNS 40404 3625 28 of of IN 40404 3625 29 New New NNP 40404 3625 30 Mexico Mexico NNP 40404 3625 31 . . . 40404 3626 1 * * NFP 40404 3626 2 * * NFP 40404 3626 3 * * NFP 40404 3626 4 * * NFP 40404 3626 5 * * NFP 40404 3626 6 [ [ -LRB- 40404 3626 7 Illustration illustration NN 40404 3626 8 : : : 40404 3626 9 Fig Fig NNP 40404 3626 10 . . . 40404 3627 1 260 260 CD 40404 3627 2 . . . 40404 3628 1 Geological Geological NNP 40404 3628 2 Map Map NNP 40404 3628 3 of of IN 40404 3628 4 the the DT 40404 3628 5 United United NNP 40404 3628 6 states states NNP 40404 3628 7 and and CC 40404 3628 8 Part Part NNP 40404 3628 9 of of IN 40404 3628 10 Canada Canada NNP 40404 3628 11 ] ] -RRB- 40404 3628 12 * * NFP 40404 3628 13 * * NFP 40404 3628 14 * * NFP 40404 3628 15 * * NFP 40404 3628 16 * * NFP 40404 3628 17 PART PART NNP 40404 3628 18 III iii CD 40404 3628 19 HISTORICAL HISTORICAL NNP 40404 3628 20 GEOLOGY GEOLOGY NNP 40404 3628 21 CHAPTER chapter NN 40404 3628 22 XIV xiv VBP 40404 3628 23 THE the DT 40404 3628 24 GEOLOGICAL GEOLOGICAL NNP 40404 3628 25 RECORD record NN 40404 3628 26 = = NFP 40404 3628 27 What what WP 40404 3628 28 a a DT 40404 3628 29 formation formation NN 40404 3628 30 records.= records.= CD 40404 3628 31 We -PRON- PRP 40404 3628 32 have have VBP 40404 3628 33 already already RB 40404 3628 34 learned learn VBN 40404 3628 35 that that IN 40404 3628 36 each each DT 40404 3628 37 individual individual JJ 40404 3628 38 body body NN 40404 3628 39 of of IN 40404 3628 40 stratified stratified JJ 40404 3628 41 rock rock NN 40404 3628 42 , , , 40404 3628 43 or or CC 40404 3628 44 formation formation NN 40404 3628 45 , , , 40404 3628 46 constitutes constitute VBZ 40404 3628 47 a a DT 40404 3628 48 record record NN 40404 3628 49 of of IN 40404 3628 50 the the DT 40404 3628 51 time time NN 40404 3628 52 when when WRB 40404 3628 53 it -PRON- PRP 40404 3628 54 was be VBD 40404 3628 55 laid lay VBN 40404 3628 56 . . . 40404 3629 1 The the DT 40404 3629 2 structure structure NN 40404 3629 3 and and CC 40404 3629 4 the the DT 40404 3629 5 character character NN 40404 3629 6 of of IN 40404 3629 7 the the DT 40404 3629 8 sediments sediment NNS 40404 3629 9 of of IN 40404 3629 10 each each DT 40404 3629 11 formation formation NN 40404 3629 12 tell tell VBP 40404 3629 13 whether whether IN 40404 3629 14 the the DT 40404 3629 15 area area NN 40404 3629 16 was be VBD 40404 3629 17 land land NN 40404 3629 18 or or CC 40404 3629 19 sea sea NN 40404 3629 20 at at IN 40404 3629 21 the the DT 40404 3629 22 time time NN 40404 3629 23 when when WRB 40404 3629 24 they -PRON- PRP 40404 3629 25 were be VBD 40404 3629 26 spread spread VBN 40404 3629 27 ; ; : 40404 3629 28 and and CC 40404 3629 29 if if IN 40404 3629 30 the the DT 40404 3629 31 former former JJ 40404 3629 32 , , , 40404 3629 33 whether whether IN 40404 3629 34 the the DT 40404 3629 35 land land NN 40404 3629 36 was be VBD 40404 3629 37 river river NN 40404 3629 38 plain plain JJ 40404 3629 39 , , , 40404 3629 40 or or CC 40404 3629 41 lake lake NNP 40404 3629 42 bed bed NN 40404 3629 43 , , , 40404 3629 44 or or CC 40404 3629 45 was be VBD 40404 3629 46 covered cover VBN 40404 3629 47 with with IN 40404 3629 48 wind wind NN 40404 3629 49 - - HYPH 40404 3629 50 blown blow VBN 40404 3629 51 sands sand NNS 40404 3629 52 , , , 40404 3629 53 or or CC 40404 3629 54 by by IN 40404 3629 55 the the DT 40404 3629 56 deposits deposit NNS 40404 3629 57 of of IN 40404 3629 58 an an DT 40404 3629 59 ice ice NN 40404 3629 60 sheet sheet NN 40404 3629 61 . . . 40404 3630 1 If if IN 40404 3630 2 the the DT 40404 3630 3 sediments sediment NNS 40404 3630 4 are be VBP 40404 3630 5 marine marine JJ 40404 3630 6 , , , 40404 3630 7 we -PRON- PRP 40404 3630 8 may may MD 40404 3630 9 know know VB 40404 3630 10 also also RB 40404 3630 11 whether whether IN 40404 3630 12 they -PRON- PRP 40404 3630 13 were be VBD 40404 3630 14 laid lay VBN 40404 3630 15 in in IN 40404 3630 16 shoal shoal NN 40404 3630 17 water water NN 40404 3630 18 near near IN 40404 3630 19 the the DT 40404 3630 20 shore shore NN 40404 3630 21 or or CC 40404 3630 22 in in IN 40404 3630 23 deeper deep JJR 40404 3630 24 water water NN 40404 3630 25 out out RB 40404 3630 26 at at IN 40404 3630 27 sea sea NN 40404 3630 28 , , , 40404 3630 29 and and CC 40404 3630 30 whether whether IN 40404 3630 31 during during IN 40404 3630 32 a a DT 40404 3630 33 period period NN 40404 3630 34 of of IN 40404 3630 35 emergence emergence NN 40404 3630 36 , , , 40404 3630 37 or or CC 40404 3630 38 during during IN 40404 3630 39 a a DT 40404 3630 40 period period NN 40404 3630 41 of of IN 40404 3630 42 subsidence subsidence NN 40404 3630 43 when when WRB 40404 3630 44 the the DT 40404 3630 45 sea sea NN 40404 3630 46 transgressed transgress VBD 40404 3630 47 the the DT 40404 3630 48 land land NN 40404 3630 49 . . . 40404 3631 1 By by IN 40404 3631 2 the the DT 40404 3631 3 same same JJ 40404 3631 4 means mean NNS 40404 3631 5 each each DT 40404 3631 6 formation formation NN 40404 3631 7 records record VBZ 40404 3631 8 the the DT 40404 3631 9 stage stage NN 40404 3631 10 in in IN 40404 3631 11 the the DT 40404 3631 12 cycle cycle NN 40404 3631 13 of of IN 40404 3631 14 erosion erosion NN 40404 3631 15 of of IN 40404 3631 16 the the DT 40404 3631 17 land land NN 40404 3631 18 mass mass NN 40404 3631 19 from from IN 40404 3631 20 which which WDT 40404 3631 21 its -PRON- PRP$ 40404 3631 22 sediments sediment NNS 40404 3631 23 were be VBD 40404 3631 24 derived derive VBN 40404 3631 25 ( ( -LRB- 40404 3631 26 p. p. NN 40404 3631 27 185 185 CD 40404 3631 28 ) ) -RRB- 40404 3631 29 . . . 40404 3632 1 An an DT 40404 3632 2 unconformity unconformity NN 40404 3632 3 between between IN 40404 3632 4 two two CD 40404 3632 5 marine marine JJ 40404 3632 6 formations formation NNS 40404 3632 7 records record VBZ 40404 3632 8 the the DT 40404 3632 9 fact fact NN 40404 3632 10 that that IN 40404 3632 11 between between IN 40404 3632 12 the the DT 40404 3632 13 periods period NNS 40404 3632 14 when when WRB 40404 3632 15 they -PRON- PRP 40404 3632 16 were be VBD 40404 3632 17 deposited deposit VBN 40404 3632 18 in in IN 40404 3632 19 the the DT 40404 3632 20 sea sea NN 40404 3632 21 the the DT 40404 3632 22 area area NN 40404 3632 23 emerged emerge VBD 40404 3632 24 as as IN 40404 3632 25 land land NN 40404 3632 26 and and CC 40404 3632 27 suffered suffer VBN 40404 3632 28 erosion erosion NN 40404 3632 29 ( ( -LRB- 40404 3632 30 p. p. NN 40404 3632 31 227 227 CD 40404 3632 32 ) ) -RRB- 40404 3632 33 . . . 40404 3633 1 The the DT 40404 3633 2 attitude attitude NN 40404 3633 3 and and CC 40404 3633 4 structure structure NN 40404 3633 5 of of IN 40404 3633 6 the the DT 40404 3633 7 strata strata NN 40404 3633 8 tell tell VB 40404 3633 9 also also RB 40404 3633 10 of of IN 40404 3633 11 the the DT 40404 3633 12 foldings folding NNS 40404 3633 13 and and CC 40404 3633 14 fractures fracture NNS 40404 3633 15 , , , 40404 3633 16 the the DT 40404 3633 17 deformation deformation NN 40404 3633 18 and and CC 40404 3633 19 the the DT 40404 3633 20 metamorphism metamorphism NN 40404 3633 21 , , , 40404 3633 22 which which WDT 40404 3633 23 they -PRON- PRP 40404 3633 24 have have VBP 40404 3633 25 suffered suffer VBN 40404 3633 26 ; ; : 40404 3633 27 and and CC 40404 3633 28 the the DT 40404 3633 29 igneous igneous JJ 40404 3633 30 rocks rock NNS 40404 3633 31 associated associate VBN 40404 3633 32 with with IN 40404 3633 33 them -PRON- PRP 40404 3633 34 as as IN 40404 3633 35 lava lava NN 40404 3633 36 flows flow VBZ 40404 3633 37 and and CC 40404 3633 38 igneous igneous JJ 40404 3633 39 intrusions intrusion NNS 40404 3633 40 add add VB 40404 3633 41 other other JJ 40404 3633 42 details detail NNS 40404 3633 43 to to IN 40404 3633 44 the the DT 40404 3633 45 story story NN 40404 3633 46 . . . 40404 3634 1 Each each DT 40404 3634 2 formation formation NN 40404 3634 3 is be VBZ 40404 3634 4 thus thus RB 40404 3634 5 a a DT 40404 3634 6 separate separate JJ 40404 3634 7 local local JJ 40404 3634 8 chapter chapter NN 40404 3634 9 in in IN 40404 3634 10 the the DT 40404 3634 11 geological geological JJ 40404 3634 12 history history NN 40404 3634 13 of of IN 40404 3634 14 the the DT 40404 3634 15 earth earth NN 40404 3634 16 , , , 40404 3634 17 and and CC 40404 3634 18 its -PRON- PRP$ 40404 3634 19 strata strata NN 40404 3634 20 are be VBP 40404 3634 21 its -PRON- PRP$ 40404 3634 22 leaves leave NNS 40404 3634 23 . . . 40404 3635 1 It -PRON- PRP 40404 3635 2 contains contain VBZ 40404 3635 3 an an DT 40404 3635 4 authentic authentic JJ 40404 3635 5 record record NN 40404 3635 6 of of IN 40404 3635 7 the the DT 40404 3635 8 physical physical JJ 40404 3635 9 conditions condition NNS 40404 3635 10 -- -- : 40404 3635 11 the the DT 40404 3635 12 geography geography NN 40404 3635 13 -- -- : 40404 3635 14 of of IN 40404 3635 15 the the DT 40404 3635 16 time time NN 40404 3635 17 and and CC 40404 3635 18 place place NN 40404 3635 19 when when WRB 40404 3635 20 and and CC 40404 3635 21 where where WRB 40404 3635 22 its -PRON- PRP$ 40404 3635 23 sediments sediment NNS 40404 3635 24 were be VBD 40404 3635 25 laid lay VBN 40404 3635 26 . . . 40404 3636 1 = = : 40404 3636 2 Past past JJ 40404 3636 3 cycles cycle NNS 40404 3636 4 of of IN 40404 3636 5 erosion.= erosion.= CD 40404 3636 6 These these DT 40404 3636 7 chapters chapter NNS 40404 3636 8 in in IN 40404 3636 9 the the DT 40404 3636 10 history history NN 40404 3636 11 of of IN 40404 3636 12 the the DT 40404 3636 13 planet planet NN 40404 3636 14 are be VBP 40404 3636 15 very very RB 40404 3636 16 numerous numerous JJ 40404 3636 17 , , , 40404 3636 18 although although IN 40404 3636 19 much much JJ 40404 3636 20 of of IN 40404 3636 21 the the DT 40404 3636 22 record record NN 40404 3636 23 has have VBZ 40404 3636 24 been be VBN 40404 3636 25 destroyed destroy VBN 40404 3636 26 in in IN 40404 3636 27 various various JJ 40404 3636 28 ways way NNS 40404 3636 29 . . . 40404 3637 1 A a DT 40404 3637 2 succession succession NN 40404 3637 3 of of IN 40404 3637 4 different different JJ 40404 3637 5 formations formation NNS 40404 3637 6 is be VBZ 40404 3637 7 usually usually RB 40404 3637 8 seen see VBN 40404 3637 9 in in IN 40404 3637 10 any any DT 40404 3637 11 considerable considerable JJ 40404 3637 12 section section NN 40404 3637 13 of of IN 40404 3637 14 the the DT 40404 3637 15 crust crust NN 40404 3637 16 , , , 40404 3637 17 such such JJ 40404 3637 18 as as IN 40404 3637 19 a a DT 40404 3637 20 deep deep JJ 40404 3637 21 canyon canyon NN 40404 3637 22 or or CC 40404 3637 23 where where WRB 40404 3637 24 the the DT 40404 3637 25 edges edge NNS 40404 3637 26 of of IN 40404 3637 27 upturned upturned JJ 40404 3637 28 strata strata NN 40404 3637 29 are be VBP 40404 3637 30 exposed expose VBN 40404 3637 31 to to TO 40404 3637 32 view view VB 40404 3637 33 on on IN 40404 3637 34 the the DT 40404 3637 35 flanks flank NNS 40404 3637 36 of of IN 40404 3637 37 mountain mountain NN 40404 3637 38 ranges range VBZ 40404 3637 39 ; ; : 40404 3637 40 and and CC 40404 3637 41 in in IN 40404 3637 42 any any DT 40404 3637 43 extensive extensive JJ 40404 3637 44 area area NN 40404 3637 45 , , , 40404 3637 46 such such JJ 40404 3637 47 as as IN 40404 3637 48 a a DT 40404 3637 49 state state NN 40404 3637 50 of of IN 40404 3637 51 the the DT 40404 3637 52 Union Union NNP 40404 3637 53 or or CC 40404 3637 54 a a DT 40404 3637 55 province province NN 40404 3637 56 of of IN 40404 3637 57 Canada Canada NNP 40404 3637 58 , , , 40404 3637 59 the the DT 40404 3637 60 number number NN 40404 3637 61 of of IN 40404 3637 62 formations formation NNS 40404 3637 63 outcropping outcrop VBG 40404 3637 64 on on IN 40404 3637 65 the the DT 40404 3637 66 surface surface NN 40404 3637 67 is be VBZ 40404 3637 68 large large JJ 40404 3637 69 . . . 40404 3638 1 It -PRON- PRP 40404 3638 2 is be VBZ 40404 3638 3 thus thus RB 40404 3638 4 learned learn VBN 40404 3638 5 that that IN 40404 3638 6 our -PRON- PRP$ 40404 3638 7 present present JJ 40404 3638 8 continent continent NN 40404 3638 9 is be VBZ 40404 3638 10 made make VBN 40404 3638 11 up up RP 40404 3638 12 for for IN 40404 3638 13 the the DT 40404 3638 14 most most JJS 40404 3638 15 part part NN 40404 3638 16 of of IN 40404 3638 17 old old JJ 40404 3638 18 continental continental JJ 40404 3638 19 deltas delta NNS 40404 3638 20 . . . 40404 3639 1 Some some DT 40404 3639 2 , , , 40404 3639 3 recently recently RB 40404 3639 4 emerged emerge VBD 40404 3639 5 as as IN 40404 3639 6 the the DT 40404 3639 7 strata strata NN 40404 3639 8 of of IN 40404 3639 9 young young JJ 40404 3639 10 coastal coastal JJ 40404 3639 11 plains plain NNS 40404 3639 12 , , , 40404 3639 13 are be VBP 40404 3639 14 the the DT 40404 3639 15 records record NNS 40404 3639 16 of of IN 40404 3639 17 recent recent JJ 40404 3639 18 cycles cycle NNS 40404 3639 19 of of IN 40404 3639 20 erosion erosion NN 40404 3639 21 ; ; : 40404 3639 22 while while IN 40404 3639 23 others other NNS 40404 3639 24 were be VBD 40404 3639 25 deposited deposit VBN 40404 3639 26 in in IN 40404 3639 27 the the DT 40404 3639 28 early early JJ 40404 3639 29 history history NN 40404 3639 30 of of IN 40404 3639 31 the the DT 40404 3639 32 earth earth NN 40404 3639 33 , , , 40404 3639 34 and and CC 40404 3639 35 in in IN 40404 3639 36 many many JJ 40404 3639 37 instances instance NNS 40404 3639 38 have have VBP 40404 3639 39 been be VBN 40404 3639 40 crumpled crumple VBN 40404 3639 41 into into IN 40404 3639 42 mountains mountain NNS 40404 3639 43 , , , 40404 3639 44 which which WDT 40404 3639 45 afterwards afterwards RB 40404 3639 46 were be VBD 40404 3639 47 leveled level VBN 40404 3639 48 to to IN 40404 3639 49 their -PRON- PRP$ 40404 3639 50 bases basis NNS 40404 3639 51 and and CC 40404 3639 52 lowered lower VBD 40404 3639 53 beneath beneath IN 40404 3639 54 the the DT 40404 3639 55 sea sea NN 40404 3639 56 to to TO 40404 3639 57 receive receive VB 40404 3639 58 a a DT 40404 3639 59 cover cover NN 40404 3639 60 of of IN 40404 3639 61 later later JJ 40404 3639 62 sediments sediment NNS 40404 3639 63 before before IN 40404 3639 64 they -PRON- PRP 40404 3639 65 were be VBD 40404 3639 66 again again RB 40404 3639 67 uplifted uplifted JJ 40404 3639 68 to to TO 40404 3639 69 form form VB 40404 3639 70 land land NN 40404 3639 71 . . . 40404 3640 1 The the DT 40404 3640 2 cycle cycle NN 40404 3640 3 of of IN 40404 3640 4 erosion erosion NN 40404 3640 5 now now RB 40404 3640 6 in in IN 40404 3640 7 progress progress NN 40404 3640 8 and and CC 40404 3640 9 recorded record VBN 40404 3640 10 in in IN 40404 3640 11 the the DT 40404 3640 12 layers layer NNS 40404 3640 13 of of IN 40404 3640 14 stratified stratified JJ 40404 3640 15 rock rock NN 40404 3640 16 being being NN 40404 3640 17 spread spread VBN 40404 3640 18 beneath beneath IN 40404 3640 19 the the DT 40404 3640 20 sea sea NN 40404 3640 21 in in IN 40404 3640 22 continental continental JJ 40404 3640 23 deltas deltas NNP 40404 3640 24 has have VBZ 40404 3640 25 therefore therefore RB 40404 3640 26 been be VBN 40404 3640 27 preceded precede VBN 40404 3640 28 by by IN 40404 3640 29 many many JJ 40404 3640 30 similar similar JJ 40404 3640 31 cycles cycle NNS 40404 3640 32 . . . 40404 3641 1 Again again RB 40404 3641 2 and and CC 40404 3641 3 again again RB 40404 3641 4 movements movement NNS 40404 3641 5 of of IN 40404 3641 6 the the DT 40404 3641 7 crust crust NN 40404 3641 8 have have VBP 40404 3641 9 brought bring VBN 40404 3641 10 to to IN 40404 3641 11 an an DT 40404 3641 12 end end NN 40404 3641 13 one one CD 40404 3641 14 cycle cycle NN 40404 3641 15 -- -- : 40404 3641 16 sometimes sometimes RB 40404 3641 17 when when WRB 40404 3641 18 only only RB 40404 3641 19 well well RB 40404 3641 20 under under IN 40404 3641 21 way way NN 40404 3641 22 , , , 40404 3641 23 and and CC 40404 3641 24 sometimes sometimes RB 40404 3641 25 when when WRB 40404 3641 26 drawing draw VBG 40404 3641 27 toward toward IN 40404 3641 28 its -PRON- PRP$ 40404 3641 29 close close NN 40404 3641 30 -- -- : 40404 3641 31 and and CC 40404 3641 32 have have VBP 40404 3641 33 begun begin VBN 40404 3641 34 another another DT 40404 3641 35 . . . 40404 3642 1 Again again RB 40404 3642 2 and and CC 40404 3642 3 again again RB 40404 3642 4 they -PRON- PRP 40404 3642 5 have have VBP 40404 3642 6 added add VBN 40404 3642 7 to to IN 40404 3642 8 the the DT 40404 3642 9 land land NN 40404 3642 10 areas area NNS 40404 3642 11 which which WDT 40404 3642 12 before before RB 40404 3642 13 were be VBD 40404 3642 14 sea sea NN 40404 3642 15 , , , 40404 3642 16 with with IN 40404 3642 17 all all DT 40404 3642 18 their -PRON- PRP$ 40404 3642 19 deposition deposition NN 40404 3642 20 records record NNS 40404 3642 21 of of IN 40404 3642 22 earlier early JJR 40404 3642 23 cycles cycle NNS 40404 3642 24 , , , 40404 3642 25 or or CC 40404 3642 26 have have VBP 40404 3642 27 lowered lower VBN 40404 3642 28 areas area NNS 40404 3642 29 of of IN 40404 3642 30 land land NN 40404 3642 31 beneath beneath IN 40404 3642 32 the the DT 40404 3642 33 sea sea NN 40404 3642 34 to to TO 40404 3642 35 receive receive VB 40404 3642 36 new new JJ 40404 3642 37 sediments sediment NNS 40404 3642 38 . . . 40404 3643 1 = = NFP 40404 3643 2 The the DT 40404 3643 3 age age NN 40404 3643 4 of of IN 40404 3643 5 the the DT 40404 3643 6 earth.= earth.= NN 40404 3643 7 The the DT 40404 3643 8 thickness thickness NN 40404 3643 9 of of IN 40404 3643 10 the the DT 40404 3643 11 stratified stratify VBN 40404 3643 12 rocks rock NNS 40404 3643 13 now now RB 40404 3643 14 exposed expose VBN 40404 3643 15 upon upon IN 40404 3643 16 the the DT 40404 3643 17 eroded erode VBN 40404 3643 18 surface surface NN 40404 3643 19 of of IN 40404 3643 20 the the DT 40404 3643 21 continents continent NNS 40404 3643 22 is be VBZ 40404 3643 23 very very RB 40404 3643 24 great great JJ 40404 3643 25 . . . 40404 3644 1 In in IN 40404 3644 2 the the DT 40404 3644 3 Appalachian appalachian JJ 40404 3644 4 region region NN 40404 3644 5 the the DT 40404 3644 6 strata strata NN 40404 3644 7 are be VBP 40404 3644 8 seven seven CD 40404 3644 9 or or CC 40404 3644 10 eight eight CD 40404 3644 11 miles mile NNS 40404 3644 12 thick thick JJ 40404 3644 13 , , , 40404 3644 14 and and CC 40404 3644 15 still still RB 40404 3644 16 greater great JJR 40404 3644 17 thicknesses thickness NNS 40404 3644 18 have have VBP 40404 3644 19 been be VBN 40404 3644 20 measured measure VBN 40404 3644 21 in in IN 40404 3644 22 several several JJ 40404 3644 23 other other JJ 40404 3644 24 mountain mountain NN 40404 3644 25 ranges range NNS 40404 3644 26 . . . 40404 3645 1 The the DT 40404 3645 2 aggregate aggregate JJ 40404 3645 3 thickness thickness NN 40404 3645 4 of of IN 40404 3645 5 all all PDT 40404 3645 6 the the DT 40404 3645 7 formations formation NNS 40404 3645 8 of of IN 40404 3645 9 the the DT 40404 3645 10 stratified stratified JJ 40404 3645 11 rocks rock NNS 40404 3645 12 of of IN 40404 3645 13 the the DT 40404 3645 14 earth earth NN 40404 3645 15 's 's POS 40404 3645 16 crust crust NN 40404 3645 17 , , , 40404 3645 18 giving give VBG 40404 3645 19 to to IN 40404 3645 20 each each DT 40404 3645 21 formation formation NN 40404 3645 22 its -PRON- PRP$ 40404 3645 23 maximum maximum JJ 40404 3645 24 thickness thickness NN 40404 3645 25 wherever wherever WRB 40404 3645 26 found find VBN 40404 3645 27 , , , 40404 3645 28 amounts amount VBZ 40404 3645 29 to to IN 40404 3645 30 not not RB 40404 3645 31 less less JJR 40404 3645 32 than than IN 40404 3645 33 forty forty CD 40404 3645 34 miles mile NNS 40404 3645 35 . . . 40404 3646 1 Knowing know VBG 40404 3646 2 how how WRB 40404 3646 3 slowly slowly RB 40404 3646 4 sediments sediment NNS 40404 3646 5 accumulate accumulate VBP 40404 3646 6 upon upon IN 40404 3646 7 the the DT 40404 3646 8 sea sea NN 40404 3646 9 floor floor NN 40404 3646 10 ( ( -LRB- 40404 3646 11 p. p. NN 40404 3646 12 184 184 CD 40404 3646 13 ) ) -RRB- 40404 3646 14 , , , 40404 3646 15 we -PRON- PRP 40404 3646 16 must must MD 40404 3646 17 believe believe VB 40404 3646 18 that that IN 40404 3646 19 the the DT 40404 3646 20 successive successive JJ 40404 3646 21 cycles cycle NNS 40404 3646 22 which which WDT 40404 3646 23 the the DT 40404 3646 24 earth earth NN 40404 3646 25 has have VBZ 40404 3646 26 seen see VBN 40404 3646 27 stretch stretch NN 40404 3646 28 back back RB 40404 3646 29 into into IN 40404 3646 30 a a DT 40404 3646 31 past past NN 40404 3646 32 almost almost RB 40404 3646 33 inconceivably inconceivably RB 40404 3646 34 remote remote JJ 40404 3646 35 , , , 40404 3646 36 and and CC 40404 3646 37 measure measure VB 40404 3646 38 tens ten NNS 40404 3646 39 of of IN 40404 3646 40 millions million NNS 40404 3646 41 and and CC 40404 3646 42 perhaps perhaps RB 40404 3646 43 even even RB 40404 3646 44 hundreds hundred NNS 40404 3646 45 of of IN 40404 3646 46 millions million NNS 40404 3646 47 of of IN 40404 3646 48 years year NNS 40404 3646 49 . . . 40404 3647 1 = = NFP 40404 3647 2 How how WRB 40404 3647 3 the the DT 40404 3647 4 formations formation NNS 40404 3647 5 are be VBP 40404 3647 6 correlated correlate VBN 40404 3647 7 and and CC 40404 3647 8 the the DT 40404 3647 9 geological geological JJ 40404 3647 10 record record NN 40404 3647 11 made make VBD 40404 3647 12 up.= up.= NNP 40404 3647 13 Arranged arrange VBN 40404 3647 14 in in IN 40404 3647 15 the the DT 40404 3647 16 order order NN 40404 3647 17 of of IN 40404 3647 18 their -PRON- PRP$ 40404 3647 19 succession succession NN 40404 3647 20 , , , 40404 3647 21 the the DT 40404 3647 22 formations formation NNS 40404 3647 23 of of IN 40404 3647 24 the the DT 40404 3647 25 earth earth NN 40404 3647 26 's 's POS 40404 3647 27 crust crust NN 40404 3647 28 would would MD 40404 3647 29 constitute constitute VB 40404 3647 30 a a DT 40404 3647 31 connected connected JJ 40404 3647 32 record record NN 40404 3647 33 in in IN 40404 3647 34 which which WDT 40404 3647 35 the the DT 40404 3647 36 geological geological JJ 40404 3647 37 history history NN 40404 3647 38 of of IN 40404 3647 39 the the DT 40404 3647 40 planet planet NN 40404 3647 41 may may MD 40404 3647 42 be be VB 40404 3647 43 read read VBN 40404 3647 44 , , , 40404 3647 45 and and CC 40404 3647 46 therefore therefore RB 40404 3647 47 known know VBN 40404 3647 48 as as IN 40404 3647 49 the the DT 40404 3647 50 _ _ NNP 40404 3647 51 geological geological JJ 40404 3647 52 record record NN 40404 3647 53 _ _ NNP 40404 3647 54 . . . 40404 3648 1 But but CC 40404 3648 2 to to TO 40404 3648 3 arrange arrange VB 40404 3648 4 the the DT 40404 3648 5 formations formation NNS 40404 3648 6 in in IN 40404 3648 7 their -PRON- PRP$ 40404 3648 8 natural natural JJ 40404 3648 9 order order NN 40404 3648 10 is be VBZ 40404 3648 11 not not RB 40404 3648 12 an an DT 40404 3648 13 easy easy JJ 40404 3648 14 task task NN 40404 3648 15 . . . 40404 3649 1 A a DT 40404 3649 2 complete complete JJ 40404 3649 3 set set NN 40404 3649 4 of of IN 40404 3649 5 the the DT 40404 3649 6 volumes volume NNS 40404 3649 7 of of IN 40404 3649 8 the the DT 40404 3649 9 record record NN 40404 3649 10 is be VBZ 40404 3649 11 to to TO 40404 3649 12 be be VB 40404 3649 13 found find VBN 40404 3649 14 in in IN 40404 3649 15 no no DT 40404 3649 16 single single JJ 40404 3649 17 region region NN 40404 3649 18 . . . 40404 3650 1 Their -PRON- PRP$ 40404 3650 2 leaves leave NNS 40404 3650 3 and and CC 40404 3650 4 chapters chapter NNS 40404 3650 5 are be VBP 40404 3650 6 scattered scatter VBN 40404 3650 7 over over IN 40404 3650 8 the the DT 40404 3650 9 land land NN 40404 3650 10 surface surface NN 40404 3650 11 of of IN 40404 3650 12 the the DT 40404 3650 13 globe globe NN 40404 3650 14 . . . 40404 3651 1 In in IN 40404 3651 2 one one CD 40404 3651 3 area area NN 40404 3651 4 certain certain JJ 40404 3651 5 chapters chapter NNS 40404 3651 6 may may MD 40404 3651 7 be be VB 40404 3651 8 found find VBN 40404 3651 9 , , , 40404 3651 10 though though IN 40404 3651 11 perhaps perhaps RB 40404 3651 12 with with IN 40404 3651 13 many many JJ 40404 3651 14 missing missing JJ 40404 3651 15 leaves leave NNS 40404 3651 16 , , , 40404 3651 17 and and CC 40404 3651 18 with with IN 40404 3651 19 intervening intervene VBG 40404 3651 20 chapters chapter NNS 40404 3651 21 wanting want VBG 40404 3651 22 , , , 40404 3651 23 and and CC 40404 3651 24 these these DT 40404 3651 25 absent absent JJ 40404 3651 26 parts part NNS 40404 3651 27 perhaps perhaps RB 40404 3651 28 can can MD 40404 3651 29 be be VB 40404 3651 30 supplied supply VBN 40404 3651 31 only only RB 40404 3651 32 after after IN 40404 3651 33 long long JJ 40404 3651 34 search search NN 40404 3651 35 through through IN 40404 3651 36 many many JJ 40404 3651 37 other other JJ 40404 3651 38 regions region NNS 40404 3651 39 . . . 40404 3652 1 Adjacent adjacent JJ 40404 3652 2 strata strata NN 40404 3652 3 in in IN 40404 3652 4 any any DT 40404 3652 5 region region NN 40404 3652 6 are be VBP 40404 3652 7 arranged arrange VBN 40404 3652 8 according accord VBG 40404 3652 9 to to IN 40404 3652 10 the the DT 40404 3652 11 _ _ NNP 40404 3652 12 law law NN 40404 3652 13 of of IN 40404 3652 14 superposition superposition NN 40404 3652 15 _ _ NNP 40404 3652 16 , , , 40404 3652 17 i.e. i.e. FW 40404 3653 1 any any DT 40404 3653 2 stratum stratum NN 40404 3653 3 is be VBZ 40404 3653 4 younger young JJR 40404 3653 5 than than IN 40404 3653 6 that that DT 40404 3653 7 on on IN 40404 3653 8 which which WDT 40404 3653 9 it -PRON- PRP 40404 3653 10 was be VBD 40404 3653 11 deposited deposit VBN 40404 3653 12 , , , 40404 3653 13 just just RB 40404 3653 14 as as IN 40404 3653 15 in in IN 40404 3653 16 a a DT 40404 3653 17 pile pile NN 40404 3653 18 of of IN 40404 3653 19 paper paper NN 40404 3653 20 , , , 40404 3653 21 any any DT 40404 3653 22 sheet sheet NN 40404 3653 23 was be VBD 40404 3653 24 laid lay VBN 40404 3653 25 later later RB 40404 3653 26 than than IN 40404 3653 27 that that DT 40404 3653 28 on on IN 40404 3653 29 which which WDT 40404 3653 30 it -PRON- PRP 40404 3653 31 rests rest VBZ 40404 3653 32 . . . 40404 3654 1 Where where WRB 40404 3654 2 rocks rock NNS 40404 3654 3 have have VBP 40404 3654 4 been be VBN 40404 3654 5 disturbed disturb VBN 40404 3654 6 , , , 40404 3654 7 their -PRON- PRP$ 40404 3654 8 original original JJ 40404 3654 9 attitude attitude NN 40404 3654 10 must must MD 40404 3654 11 be be VB 40404 3654 12 determined determine VBN 40404 3654 13 before before IN 40404 3654 14 the the DT 40404 3654 15 law law NN 40404 3654 16 can can MD 40404 3654 17 be be VB 40404 3654 18 applied apply VBN 40404 3654 19 . . . 40404 3655 1 Nor nor CC 40404 3655 2 can can MD 40404 3655 3 the the DT 40404 3655 4 law law NN 40404 3655 5 of of IN 40404 3655 6 superposition superposition NN 40404 3655 7 be be VB 40404 3655 8 used use VBN 40404 3655 9 in in IN 40404 3655 10 identifying identify VBG 40404 3655 11 and and CC 40404 3655 12 comparing compare VBG 40404 3655 13 the the DT 40404 3655 14 strata strata NN 40404 3655 15 of of IN 40404 3655 16 different different JJ 40404 3655 17 regions region NNS 40404 3655 18 where where WRB 40404 3655 19 the the DT 40404 3655 20 formations formation NNS 40404 3655 21 can can MD 40404 3655 22 not not RB 40404 3655 23 be be VB 40404 3655 24 traced trace VBN 40404 3655 25 continuously continuously RB 40404 3655 26 from from IN 40404 3655 27 one one CD 40404 3655 28 region region NN 40404 3655 29 to to IN 40404 3655 30 the the DT 40404 3655 31 other other JJ 40404 3655 32 . . . 40404 3656 1 The the DT 40404 3656 2 formations formation NNS 40404 3656 3 of of IN 40404 3656 4 different different JJ 40404 3656 5 regions region NNS 40404 3656 6 are be VBP 40404 3656 7 arranged arrange VBN 40404 3656 8 in in IN 40404 3656 9 their -PRON- PRP$ 40404 3656 10 true true JJ 40404 3656 11 order order NN 40404 3656 12 by by IN 40404 3656 13 the the DT 40404 3656 14 _ _ NNP 40404 3656 15 law law NN 40404 3656 16 of of IN 40404 3656 17 included include VBN 40404 3656 18 organisms organism NNS 40404 3656 19 _ _ NNP 40404 3656 20 ; ; : 40404 3656 21 i.e. i.e. FW 40404 3657 1 formations formation NNS 40404 3657 2 , , , 40404 3657 3 however however RB 40404 3657 4 widely widely RB 40404 3657 5 separated separate VBN 40404 3657 6 , , , 40404 3657 7 which which WDT 40404 3657 8 contain contain VBP 40404 3657 9 a a DT 40404 3657 10 similar similar JJ 40404 3657 11 assemblage assemblage NN 40404 3657 12 of of IN 40404 3657 13 fossils fossil NNS 40404 3657 14 are be VBP 40404 3657 15 equivalent equivalent JJ 40404 3657 16 and and CC 40404 3657 17 belong belong VB 40404 3657 18 to to IN 40404 3657 19 the the DT 40404 3657 20 same same JJ 40404 3657 21 division division NN 40404 3657 22 of of IN 40404 3657 23 geological geological JJ 40404 3657 24 time time NN 40404 3657 25 . . . 40404 3658 1 The the DT 40404 3658 2 correlation correlation NN 40404 3658 3 of of IN 40404 3658 4 formations formation NNS 40404 3658 5 by by IN 40404 3658 6 means mean NNS 40404 3658 7 of of IN 40404 3658 8 fossils fossil NNS 40404 3658 9 may may MD 40404 3658 10 be be VB 40404 3658 11 explained explain VBN 40404 3658 12 by by IN 40404 3658 13 the the DT 40404 3658 14 formations formation NNS 40404 3658 15 now now RB 40404 3658 16 being be VBG 40404 3658 17 deposited deposit VBN 40404 3658 18 about about IN 40404 3658 19 the the DT 40404 3658 20 north north JJ 40404 3658 21 Atlantic Atlantic NNP 40404 3658 22 . . . 40404 3659 1 Lithologically lithologically RB 40404 3659 2 they -PRON- PRP 40404 3659 3 are be VBP 40404 3659 4 extremely extremely RB 40404 3659 5 various various JJ 40404 3659 6 . . . 40404 3660 1 On on IN 40404 3660 2 the the DT 40404 3660 3 continental continental JJ 40404 3660 4 shelf shelf NN 40404 3660 5 of of IN 40404 3660 6 North North NNP 40404 3660 7 America America NNP 40404 3660 8 limestones limestone VBZ 40404 3660 9 of of IN 40404 3660 10 different different JJ 40404 3660 11 kinds kind NNS 40404 3660 12 are be VBP 40404 3660 13 forming form VBG 40404 3660 14 off off RP 40404 3660 15 Florida Florida NNP 40404 3660 16 , , , 40404 3660 17 and and CC 40404 3660 18 sandstones sandstone NNS 40404 3660 19 and and CC 40404 3660 20 shales shale NNS 40404 3660 21 from from IN 40404 3660 22 Georgia Georgia NNP 40404 3660 23 northward northward RB 40404 3660 24 . . . 40404 3661 1 Separated separate VBN 40404 3661 2 from from IN 40404 3661 3 them -PRON- PRP 40404 3661 4 by by IN 40404 3661 5 the the DT 40404 3661 6 deep deep JJ 40404 3661 7 Atlantic Atlantic NNP 40404 3661 8 oozes ooze NNS 40404 3661 9 are be VBP 40404 3661 10 other other JJ 40404 3661 11 sedimentary sedimentary JJ 40404 3661 12 deposits deposit NNS 40404 3661 13 now now RB 40404 3661 14 accumulating accumulate VBG 40404 3661 15 along along IN 40404 3661 16 the the DT 40404 3661 17 west west JJ 40404 3661 18 coast coast NN 40404 3661 19 of of IN 40404 3661 20 Europe Europe NNP 40404 3661 21 . . . 40404 3662 1 If if IN 40404 3662 2 now now RB 40404 3662 3 all all PDT 40404 3662 4 these these DT 40404 3662 5 offshore offshore JJ 40404 3662 6 formations formation NNS 40404 3662 7 were be VBD 40404 3662 8 raised raise VBN 40404 3662 9 to to TO 40404 3662 10 open open VB 40404 3662 11 air air NN 40404 3662 12 , , , 40404 3662 13 how how WRB 40404 3662 14 could could MD 40404 3662 15 they -PRON- PRP 40404 3662 16 be be VB 40404 3662 17 correlated correlate VBN 40404 3662 18 ? ? . 40404 3663 1 Surely surely RB 40404 3663 2 not not RB 40404 3663 3 by by IN 40404 3663 4 lithological lithological JJ 40404 3663 5 likeness likeness NN 40404 3663 6 , , , 40404 3663 7 for for IN 40404 3663 8 in in IN 40404 3663 9 this this DT 40404 3663 10 respect respect NN 40404 3663 11 they -PRON- PRP 40404 3663 12 would would MD 40404 3663 13 be be VB 40404 3663 14 quite quite RB 40404 3663 15 diverse diverse JJ 40404 3663 16 . . . 40404 3664 1 All all DT 40404 3664 2 would would MD 40404 3664 3 be be VB 40404 3664 4 similar similar JJ 40404 3664 5 , , , 40404 3664 6 however however RB 40404 3664 7 , , , 40404 3664 8 in in IN 40404 3664 9 the the DT 40404 3664 10 fossils fossil NNS 40404 3664 11 which which WDT 40404 3664 12 they -PRON- PRP 40404 3664 13 contain contain VBP 40404 3664 14 . . . 40404 3665 1 Some some DT 40404 3665 2 fossil fossil NN 40404 3665 3 species specie NNS 40404 3665 4 would would MD 40404 3665 5 be be VB 40404 3665 6 identical identical JJ 40404 3665 7 in in IN 40404 3665 8 all all PDT 40404 3665 9 these these DT 40404 3665 10 formations formation NNS 40404 3665 11 and and CC 40404 3665 12 others other NNS 40404 3665 13 would would MD 40404 3665 14 be be VB 40404 3665 15 closely closely RB 40404 3665 16 allied ally VBN 40404 3665 17 . . . 40404 3666 1 Making make VBG 40404 3666 2 all all DT 40404 3666 3 due due JJ 40404 3666 4 allowance allowance NN 40404 3666 5 for for IN 40404 3666 6 differences difference NNS 40404 3666 7 in in IN 40404 3666 8 species specie NNS 40404 3666 9 due due IN 40404 3666 10 to to IN 40404 3666 11 local local JJ 40404 3666 12 differences difference NNS 40404 3666 13 in in IN 40404 3666 14 climate climate NN 40404 3666 15 and and CC 40404 3666 16 other other JJ 40404 3666 17 physical physical JJ 40404 3666 18 causes cause NNS 40404 3666 19 , , , 40404 3666 20 it -PRON- PRP 40404 3666 21 would would MD 40404 3666 22 still still RB 40404 3666 23 be be VB 40404 3666 24 plain plain JJ 40404 3666 25 that that IN 40404 3666 26 plants plant NNS 40404 3666 27 and and CC 40404 3666 28 animals animal NNS 40404 3666 29 so so RB 40404 3666 30 similar similar JJ 40404 3666 31 lived live VBD 40404 3666 32 at at IN 40404 3666 33 the the DT 40404 3666 34 same same JJ 40404 3666 35 period period NN 40404 3666 36 of of IN 40404 3666 37 time time NN 40404 3666 38 , , , 40404 3666 39 and and CC 40404 3666 40 that that IN 40404 3666 41 the the DT 40404 3666 42 formations formation NNS 40404 3666 43 in in IN 40404 3666 44 which which WDT 40404 3666 45 their -PRON- PRP$ 40404 3666 46 remains remain NNS 40404 3666 47 were be VBD 40404 3666 48 imbedded imbed VBN 40404 3666 49 were be VBD 40404 3666 50 contemporaneous contemporaneous JJ 40404 3666 51 in in IN 40404 3666 52 a a DT 40404 3666 53 broad broad JJ 40404 3666 54 way way NN 40404 3666 55 . . . 40404 3667 1 The the DT 40404 3667 2 presence presence NN 40404 3667 3 of of IN 40404 3667 4 the the DT 40404 3667 5 bones bone NNS 40404 3667 6 of of IN 40404 3667 7 whales whale NNS 40404 3667 8 and and CC 40404 3667 9 other other JJ 40404 3667 10 marine marine JJ 40404 3667 11 mammals mammal NNS 40404 3667 12 would would MD 40404 3667 13 prove prove VB 40404 3667 14 that that IN 40404 3667 15 the the DT 40404 3667 16 strata strata NN 40404 3667 17 were be VBD 40404 3667 18 laid lay VBN 40404 3667 19 after after IN 40404 3667 20 the the DT 40404 3667 21 appearance appearance NN 40404 3667 22 of of IN 40404 3667 23 mammals mammal NNS 40404 3667 24 upon upon IN 40404 3667 25 earth earth NN 40404 3667 26 , , , 40404 3667 27 and and CC 40404 3667 28 imbedded imbedded JJ 40404 3667 29 relics relic NNS 40404 3667 30 of of IN 40404 3667 31 man man NN 40404 3667 32 would would MD 40404 3667 33 give give VB 40404 3667 34 a a DT 40404 3667 35 still still RB 40404 3667 36 closer close JJR 40404 3667 37 approximation approximation NN 40404 3667 38 to to IN 40404 3667 39 their -PRON- PRP$ 40404 3667 40 age age NN 40404 3667 41 . . . 40404 3668 1 In in IN 40404 3668 2 the the DT 40404 3668 3 same same JJ 40404 3668 4 way way NN 40404 3668 5 we -PRON- PRP 40404 3668 6 correlate correlate VBP 40404 3668 7 the the DT 40404 3668 8 earlier early RBR 40404 3668 9 geological geological JJ 40404 3668 10 formations formation NNS 40404 3668 11 . . . 40404 3669 1 For for IN 40404 3669 2 example example NN 40404 3669 3 , , , 40404 3669 4 in in IN 40404 3669 5 1902 1902 CD 40404 3669 6 there there EX 40404 3669 7 were be VBD 40404 3669 8 collected collect VBN 40404 3669 9 the the DT 40404 3669 10 first first JJ 40404 3669 11 fossils fossil NNS 40404 3669 12 ever ever RB 40404 3669 13 found find VBN 40404 3669 14 on on IN 40404 3669 15 the the DT 40404 3669 16 antarctic antarctic JJ 40404 3669 17 continent continent NN 40404 3669 18 . . . 40404 3670 1 Among among IN 40404 3670 2 the the DT 40404 3670 3 dozen dozen NN 40404 3670 4 specimens specimen NNS 40404 3670 5 obtained obtain VBN 40404 3670 6 were be VBD 40404 3670 7 some some DT 40404 3670 8 fossil fossil JJ 40404 3670 9 ammonites ammonite NNS 40404 3670 10 ( ( -LRB- 40404 3670 11 a a DT 40404 3670 12 family family NN 40404 3670 13 of of IN 40404 3670 14 chambered chambered JJ 40404 3670 15 shells shell NNS 40404 3670 16 ) ) -RRB- 40404 3670 17 of of IN 40404 3670 18 genera genera NN 40404 3670 19 which which WDT 40404 3670 20 are be VBP 40404 3670 21 found find VBN 40404 3670 22 on on IN 40404 3670 23 other other JJ 40404 3670 24 continents continent NNS 40404 3670 25 in in IN 40404 3670 26 certain certain JJ 40404 3670 27 formations formation NNS 40404 3670 28 classified classify VBD 40404 3670 29 as as IN 40404 3670 30 the the DT 40404 3670 31 Cretaceous cretaceous JJ 40404 3670 32 system system NN 40404 3670 33 , , , 40404 3670 34 and and CC 40404 3670 35 which which WDT 40404 3670 36 occur occur VBP 40404 3670 37 neither neither CC 40404 3670 38 above above IN 40404 3670 39 these these DT 40404 3670 40 formations formation NNS 40404 3670 41 nor nor CC 40404 3670 42 below below IN 40404 3670 43 them -PRON- PRP 40404 3670 44 . . . 40404 3671 1 On on IN 40404 3671 2 the the DT 40404 3671 3 basis basis NN 40404 3671 4 of of IN 40404 3671 5 these these DT 40404 3671 6 few few JJ 40404 3671 7 fossils fossil NNS 40404 3671 8 we -PRON- PRP 40404 3671 9 may may MD 40404 3671 10 be be VB 40404 3671 11 confident confident JJ 40404 3671 12 that that IN 40404 3671 13 the the DT 40404 3671 14 strata strata NN 40404 3671 15 in in IN 40404 3671 16 which which WDT 40404 3671 17 they -PRON- PRP 40404 3671 18 were be VBD 40404 3671 19 found find VBN 40404 3671 20 in in IN 40404 3671 21 the the DT 40404 3671 22 antarctic antarctic JJ 40404 3671 23 region region NN 40404 3671 24 were be VBD 40404 3671 25 laid lay VBN 40404 3671 26 in in IN 40404 3671 27 the the DT 40404 3671 28 same same JJ 40404 3671 29 period period NN 40404 3671 30 of of IN 40404 3671 31 geologic geologic JJ 40404 3671 32 time time NN 40404 3671 33 as as IN 40404 3671 34 were be VBD 40404 3671 35 the the DT 40404 3671 36 Cretaceous cretaceous JJ 40404 3671 37 rocks rock NNS 40404 3671 38 of of IN 40404 3671 39 the the DT 40404 3671 40 United United NNP 40404 3671 41 States States NNP 40404 3671 42 and and CC 40404 3671 43 Canada Canada NNP 40404 3671 44 . . . 40404 3672 1 = = NFP 40404 3672 2 The the DT 40404 3672 3 record record NN 40404 3672 4 as as IN 40404 3672 5 a a DT 40404 3672 6 time time NN 40404 3672 7 scale.= scale.= VBN 40404 3672 8 By by IN 40404 3672 9 means mean NNS 40404 3672 10 of of IN 40404 3672 11 the the DT 40404 3672 12 law law NN 40404 3672 13 of of IN 40404 3672 14 included include VBN 40404 3672 15 organisms organism NNS 40404 3672 16 and and CC 40404 3672 17 the the DT 40404 3672 18 law law NN 40404 3672 19 of of IN 40404 3672 20 superposition superposition NN 40404 3672 21 the the DT 40404 3672 22 formations formation NNS 40404 3672 23 of of IN 40404 3672 24 different different JJ 40404 3672 25 countries country NNS 40404 3672 26 and and CC 40404 3672 27 continents continent NNS 40404 3672 28 are be VBP 40404 3672 29 correlated correlate VBN 40404 3672 30 and and CC 40404 3672 31 arranged arrange VBN 40404 3672 32 in in IN 40404 3672 33 their -PRON- PRP$ 40404 3672 34 natural natural JJ 40404 3672 35 order order NN 40404 3672 36 . . . 40404 3673 1 When when WRB 40404 3673 2 the the DT 40404 3673 3 geological geological JJ 40404 3673 4 record record NN 40404 3673 5 is be VBZ 40404 3673 6 thus thus RB 40404 3673 7 obtained obtain VBN 40404 3673 8 it -PRON- PRP 40404 3673 9 may may MD 40404 3673 10 be be VB 40404 3673 11 used use VBN 40404 3673 12 as as IN 40404 3673 13 a a DT 40404 3673 14 universal universal JJ 40404 3673 15 time time NN 40404 3673 16 scale scale NN 40404 3673 17 for for IN 40404 3673 18 geological geological JJ 40404 3673 19 history history NN 40404 3673 20 . . . 40404 3674 1 Geological geological JJ 40404 3674 2 time time NN 40404 3674 3 is be VBZ 40404 3674 4 separated separate VBN 40404 3674 5 into into IN 40404 3674 6 divisions division NNS 40404 3674 7 corresponding correspond VBG 40404 3674 8 to to IN 40404 3674 9 the the DT 40404 3674 10 times time NNS 40404 3674 11 during during IN 40404 3674 12 which which WDT 40404 3674 13 the the DT 40404 3674 14 successive successive JJ 40404 3674 15 formations formation NNS 40404 3674 16 were be VBD 40404 3674 17 laid lay VBN 40404 3674 18 . . . 40404 3675 1 The the DT 40404 3675 2 largest large JJS 40404 3675 3 assemblages assemblage NNS 40404 3675 4 of of IN 40404 3675 5 formations formation NNS 40404 3675 6 are be VBP 40404 3675 7 known know VBN 40404 3675 8 as as IN 40404 3675 9 groups group NNS 40404 3675 10 , , , 40404 3675 11 while while IN 40404 3675 12 the the DT 40404 3675 13 corresponding correspond VBG 40404 3675 14 divisions division NNS 40404 3675 15 of of IN 40404 3675 16 time time NN 40404 3675 17 are be VBP 40404 3675 18 known know VBN 40404 3675 19 as as IN 40404 3675 20 eras era NNS 40404 3675 21 . . . 40404 3676 1 Groups group NNS 40404 3676 2 are be VBP 40404 3676 3 subdivided subdivide VBN 40404 3676 4 into into IN 40404 3676 5 systems system NNS 40404 3676 6 , , , 40404 3676 7 and and CC 40404 3676 8 systems system NNS 40404 3676 9 into into IN 40404 3676 10 series series NN 40404 3676 11 . . . 40404 3677 1 Series Series NNP 40404 3677 2 are be VBP 40404 3677 3 divided divide VBN 40404 3677 4 into into IN 40404 3677 5 stages stage NNS 40404 3677 6 and and CC 40404 3677 7 substages,--subdivisions substages,--subdivision NNS 40404 3677 8 which which WDT 40404 3677 9 do do VBP 40404 3677 10 not not RB 40404 3677 11 concern concern VB 40404 3677 12 us -PRON- PRP 40404 3677 13 in in IN 40404 3677 14 this this DT 40404 3677 15 brief brief JJ 40404 3677 16 treatise treatise NN 40404 3677 17 . . . 40404 3678 1 The the DT 40404 3678 2 corresponding correspond VBG 40404 3678 3 divisions division NNS 40404 3678 4 of of IN 40404 3678 5 time time NN 40404 3678 6 are be VBP 40404 3678 7 given give VBN 40404 3678 8 in in IN 40404 3678 9 the the DT 40404 3678 10 following follow VBG 40404 3678 11 table table NN 40404 3678 12 . . . 40404 3679 1 _ _ NNP 40404 3679 2 Strata Strata NNP 40404 3679 3 _ _ NNP 40404 3679 4 _ _ NNP 40404 3679 5 Time Time NNP 40404 3679 6 _ _ NNP 40404 3679 7 Group Group NNP 40404 3679 8 Era Era NNP 40404 3679 9 System System NNP 40404 3679 10 Period Period NNP 40404 3679 11 Series Series NNP 40404 3679 12 Epoch Epoch NNP 40404 3679 13 The the DT 40404 3679 14 geologist geologist NN 40404 3679 15 is be VBZ 40404 3679 16 now now RB 40404 3679 17 prepared prepared JJ 40404 3679 18 to to TO 40404 3679 19 read read VB 40404 3679 20 the the DT 40404 3679 21 physical physical JJ 40404 3679 22 history history NN 40404 3679 23 -- -- : 40404 3679 24 the the DT 40404 3679 25 geographical geographical JJ 40404 3679 26 development development NN 40404 3679 27 -- -- : 40404 3679 28 of of IN 40404 3679 29 any any DT 40404 3679 30 country country NN 40404 3679 31 or or CC 40404 3679 32 of of IN 40404 3679 33 any any DT 40404 3679 34 continent continent NN 40404 3679 35 by by IN 40404 3679 36 means mean NNS 40404 3679 37 of of IN 40404 3679 38 its -PRON- PRP$ 40404 3679 39 formations formation NNS 40404 3679 40 , , , 40404 3679 41 when when WRB 40404 3679 42 he -PRON- PRP 40404 3679 43 has have VBZ 40404 3679 44 given give VBN 40404 3679 45 each each DT 40404 3679 46 formation formation NN 40404 3679 47 its -PRON- PRP$ 40404 3679 48 true true JJ 40404 3679 49 place place NN 40404 3679 50 in in IN 40404 3679 51 the the DT 40404 3679 52 geological geological JJ 40404 3679 53 record record NN 40404 3679 54 as as IN 40404 3679 55 a a DT 40404 3679 56 time time NN 40404 3679 57 scale scale NN 40404 3679 58 . . . 40404 3680 1 The the DT 40404 3680 2 following follow VBG 40404 3680 3 chart chart NN 40404 3680 4 exhibits exhibit VBZ 40404 3680 5 the the DT 40404 3680 6 main main JJ 40404 3680 7 divisions division NNS 40404 3680 8 of of IN 40404 3680 9 the the DT 40404 3680 10 record record NN 40404 3680 11 , , , 40404 3680 12 the the DT 40404 3680 13 name name NN 40404 3680 14 given give VBN 40404 3680 15 to to IN 40404 3680 16 each each DT 40404 3680 17 being be VBG 40404 3680 18 given give VBN 40404 3680 19 also also RB 40404 3680 20 to to IN 40404 3680 21 the the DT 40404 3680 22 corresponding corresponding JJ 40404 3680 23 time time NN 40404 3680 24 division division NN 40404 3680 25 . . . 40404 3681 1 Thus thus RB 40404 3681 2 we -PRON- PRP 40404 3681 3 speak speak VBP 40404 3681 4 of of IN 40404 3681 5 the the DT 40404 3681 6 _ _ NNP 40404 3681 7 Cambrian cambrian JJ 40404 3681 8 system system NN 40404 3681 9 _ _ NNP 40404 3681 10 , , , 40404 3681 11 meaning mean VBG 40404 3681 12 a a DT 40404 3681 13 certain certain JJ 40404 3681 14 succession succession NN 40404 3681 15 of of IN 40404 3681 16 formations formation NNS 40404 3681 17 which which WDT 40404 3681 18 are be VBP 40404 3681 19 classified classify VBN 40404 3681 20 together together RB 40404 3681 21 because because IN 40404 3681 22 of of IN 40404 3681 23 broad broad JJ 40404 3681 24 resemblances resemblance NNS 40404 3681 25 in in IN 40404 3681 26 their -PRON- PRP$ 40404 3681 27 included include VBN 40404 3681 28 organisms organism NNS 40404 3681 29 ; ; : 40404 3681 30 and and CC 40404 3681 31 of of IN 40404 3681 32 the the DT 40404 3681 33 _ _ NNP 40404 3681 34 Cambrian cambrian JJ 40404 3681 35 period period NN 40404 3681 36 _ _ NNP 40404 3681 37 , , , 40404 3681 38 meaning mean VBG 40404 3681 39 the the DT 40404 3681 40 time time NN 40404 3681 41 during during IN 40404 3681 42 which which WDT 40404 3681 43 these these DT 40404 3681 44 rocks rock NNS 40404 3681 45 were be VBD 40404 3681 46 deposited deposit VBN 40404 3681 47 . . . 40404 3682 1 _ _ NNP 40404 3682 2 Group Group NNP 40404 3682 3 and and CC 40404 3682 4 Era Era NNP 40404 3682 5 _ _ NNP 40404 3682 6 _ _ NNP 40404 3682 7 System System NNP 40404 3682 8 and and CC 40404 3682 9 Period Period NNP 40404 3682 10 _ _ NNP 40404 3682 11 _ _ NNP 40404 3682 12 Series Series NNP 40404 3682 13 and and CC 40404 3682 14 Epoch Epoch NNP 40404 3682 15 _ _ NNP 40404 3682 16 { { -LRB- 40404 3682 17 Recent recent JJ 40404 3682 18 { { -LRB- 40404 3682 19 Quaternary quaternary JJ 40404 3682 20 . . . 40404 3683 1 . . . 40404 3684 1 . . . 40404 3685 1 . . . 40404 3686 1 { { -LRB- 40404 3686 2 Pleistocene Pleistocene NNP 40404 3686 3 { { -LRB- 40404 3686 4 Cenozoic Cenozoic NNP 40404 3686 5 . . . 40404 3687 1 . . . 40404 3688 1 . . . 40404 3689 1 . . . 40404 3690 1 { { -LRB- 40404 3690 2 { { -LRB- 40404 3690 3 Pliocene Pliocene NNP 40404 3690 4 { { -LRB- 40404 3690 5 Tertiary tertiary NN 40404 3690 6 . . . 40404 3691 1 . . . 40404 3692 1 . . . 40404 3693 1 . . . 40404 3694 1 { { -LRB- 40404 3694 2 Miocene Miocene NNP 40404 3694 3 { { -LRB- 40404 3694 4 Eocene Eocene NNP 40404 3694 5 { { -LRB- 40404 3694 6 Cretaceous Cretaceous NNP 40404 3694 7 Mesozoic Mesozoic NNP 40404 3694 8 . . . 40404 3695 1 . . . 40404 3696 1 . . . 40404 3697 1 . . . 40404 3698 1 { { -LRB- 40404 3698 2 Jurassic Jurassic NNP 40404 3698 3 { { -LRB- 40404 3698 4 Triassic Triassic NNP 40404 3698 5 { { -LRB- 40404 3698 6 Permian permian JJ 40404 3698 7 { { -LRB- 40404 3698 8 Carboniferous carboniferous JJ 40404 3698 9 . . . 40404 3699 1 . . . 40404 3700 1 { { -LRB- 40404 3700 2 Pennsylvanian pennsylvanian JJ 40404 3700 3 { { -LRB- 40404 3700 4 { { -LRB- 40404 3700 5 Mississippian Mississippian NNP 40404 3700 6 Paleozoic Paleozoic NNP 40404 3700 7 . . . 40404 3701 1 . . . 40404 3702 1 . . . 40404 3703 1 . . . 40404 3704 1 { { -LRB- 40404 3704 2 Devonian Devonian NNP 40404 3704 3 { { -LRB- 40404 3704 4 Silurian silurian JJ 40404 3704 5 { { -LRB- 40404 3704 6 Ordovician ordovician JJ 40404 3704 7 { { -LRB- 40404 3704 8 Cambrian cambrian JJ 40404 3704 9 Algonkian algonkian JJ 40404 3704 10 Archean Archean NNP 40404 3704 11 Fossils Fossils NNP 40404 3704 12 and and CC 40404 3704 13 what what WP 40404 3704 14 they -PRON- PRP 40404 3704 15 teach teach VBP 40404 3704 16 The the DT 40404 3704 17 geological geological JJ 40404 3704 18 formations formation NNS 40404 3704 19 contain contain VBP 40404 3704 20 a a DT 40404 3704 21 record record NN 40404 3704 22 still still RB 40404 3704 23 more more RBR 40404 3704 24 important important JJ 40404 3704 25 than than IN 40404 3704 26 that that DT 40404 3704 27 of of IN 40404 3704 28 the the DT 40404 3704 29 geographical geographical JJ 40404 3704 30 development development NN 40404 3704 31 of of IN 40404 3704 32 the the DT 40404 3704 33 continents continent NNS 40404 3704 34 ; ; : 40404 3704 35 the the DT 40404 3704 36 fossils fossil NNS 40404 3704 37 imbedded imbed VBN 40404 3704 38 in in IN 40404 3704 39 the the DT 40404 3704 40 rocks rock NNS 40404 3704 41 of of IN 40404 3704 42 each each DT 40404 3704 43 formation formation NN 40404 3704 44 tell tell NN 40404 3704 45 of of IN 40404 3704 46 the the DT 40404 3704 47 kinds kind NNS 40404 3704 48 of of IN 40404 3704 49 animals animal NNS 40404 3704 50 and and CC 40404 3704 51 plants plant NNS 40404 3704 52 which which WDT 40404 3704 53 inhabited inhabit VBD 40404 3704 54 the the DT 40404 3704 55 earth earth NN 40404 3704 56 at at IN 40404 3704 57 that that DT 40404 3704 58 time time NN 40404 3704 59 , , , 40404 3704 60 and and CC 40404 3704 61 from from IN 40404 3704 62 these these DT 40404 3704 63 fossils fossil NNS 40404 3704 64 we -PRON- PRP 40404 3704 65 are be VBP 40404 3704 66 therefore therefore RB 40404 3704 67 able able JJ 40404 3704 68 to to TO 40404 3704 69 construct construct VB 40404 3704 70 the the DT 40404 3704 71 history history NN 40404 3704 72 of of IN 40404 3704 73 life life NN 40404 3704 74 upon upon IN 40404 3704 75 the the DT 40404 3704 76 earth earth NN 40404 3704 77 . . . 40404 3705 1 = = NFP 40404 3705 2 Fossils.= Fossils.= NNP 40404 3705 3 These these DT 40404 3705 4 remains remain NNS 40404 3705 5 of of IN 40404 3705 6 organisms organism NNS 40404 3705 7 are be VBP 40404 3705 8 found find VBN 40404 3705 9 in in IN 40404 3705 10 the the DT 40404 3705 11 strata strata NN 40404 3705 12 in in IN 40404 3705 13 all all DT 40404 3705 14 degrees degree NNS 40404 3705 15 of of IN 40404 3705 16 perfection perfection NN 40404 3705 17 , , , 40404 3705 18 from from IN 40404 3705 19 trails trail NNS 40404 3705 20 and and CC 40404 3705 21 tracks track NNS 40404 3705 22 and and CC 40404 3705 23 fragmentary fragmentary JJ 40404 3705 24 impressions impression NNS 40404 3705 25 , , , 40404 3705 26 to to TO 40404 3705 27 perfectly perfectly RB 40404 3705 28 preserved preserve VBN 40404 3705 29 shells shell NNS 40404 3705 30 , , , 40404 3705 31 wood wood NN 40404 3705 32 , , , 40404 3705 33 bones bone NNS 40404 3705 34 , , , 40404 3705 35 and and CC 40404 3705 36 complete complete JJ 40404 3705 37 skeletons skeleton NNS 40404 3705 38 . . . 40404 3706 1 As as IN 40404 3706 2 a a DT 40404 3706 3 rule rule NN 40404 3706 4 , , , 40404 3706 5 it -PRON- PRP 40404 3706 6 is be VBZ 40404 3706 7 only only RB 40404 3706 8 the the DT 40404 3706 9 hard hard JJ 40404 3706 10 parts part NNS 40404 3706 11 of of IN 40404 3706 12 animals animal NNS 40404 3706 13 and and CC 40404 3706 14 plants plant NNS 40404 3706 15 which which WDT 40404 3706 16 have have VBP 40404 3706 17 left leave VBN 40404 3706 18 any any DT 40404 3706 19 traces trace NNS 40404 3706 20 in in IN 40404 3706 21 the the DT 40404 3706 22 rocks rock NNS 40404 3706 23 . . . 40404 3707 1 Sometimes sometimes RB 40404 3707 2 the the DT 40404 3707 3 original original JJ 40404 3707 4 hard hard JJ 40404 3707 5 substance substance NN 40404 3707 6 is be VBZ 40404 3707 7 preserved preserve VBN 40404 3707 8 , , , 40404 3707 9 but but CC 40404 3707 10 more more RBR 40404 3707 11 often often RB 40404 3707 12 it -PRON- PRP 40404 3707 13 has have VBZ 40404 3707 14 been be VBN 40404 3707 15 replaced replace VBN 40404 3707 16 by by IN 40404 3707 17 some some DT 40404 3707 18 less less RBR 40404 3707 19 soluble soluble JJ 40404 3707 20 material material NN 40404 3707 21 . . . 40404 3708 1 Petrifaction petrifaction NN 40404 3708 2 , , , 40404 3708 3 as as IN 40404 3708 4 this this DT 40404 3708 5 process process NN 40404 3708 6 of of IN 40404 3708 7 slow slow JJ 40404 3708 8 replacement replacement NN 40404 3708 9 is be VBZ 40404 3708 10 called call VBN 40404 3708 11 , , , 40404 3708 12 is be VBZ 40404 3708 13 often often RB 40404 3708 14 carried carry VBN 40404 3708 15 on on RP 40404 3708 16 in in IN 40404 3708 17 the the DT 40404 3708 18 most most RBS 40404 3708 19 exquisite exquisite JJ 40404 3708 20 detail detail NN 40404 3708 21 . . . 40404 3709 1 When when WRB 40404 3709 2 wood wood NN 40404 3709 3 , , , 40404 3709 4 for for IN 40404 3709 5 example example NN 40404 3709 6 , , , 40404 3709 7 is be VBZ 40404 3709 8 undergoing undergo VBG 40404 3709 9 petrifaction petrifaction NN 40404 3709 10 , , , 40404 3709 11 the the DT 40404 3709 12 woody woody NN 40404 3709 13 tissue tissue NN 40404 3709 14 may may MD 40404 3709 15 be be VB 40404 3709 16 replaced replace VBN 40404 3709 17 , , , 40404 3709 18 particle particle NN 40404 3709 19 by by IN 40404 3709 20 particle particle NN 40404 3709 21 , , , 40404 3709 22 by by IN 40404 3709 23 silica silica NN 40404 3709 24 in in IN 40404 3709 25 solution solution NN 40404 3709 26 through through IN 40404 3709 27 the the DT 40404 3709 28 action action NN 40404 3709 29 of of IN 40404 3709 30 underground underground JJ 40404 3709 31 waters water NNS 40404 3709 32 , , , 40404 3709 33 even even RB 40404 3709 34 the the DT 40404 3709 35 microscopic microscopic JJ 40404 3709 36 structures structure NNS 40404 3709 37 of of IN 40404 3709 38 the the DT 40404 3709 39 wood wood NN 40404 3709 40 being be VBG 40404 3709 41 perfectly perfectly RB 40404 3709 42 reproduced reproduce VBN 40404 3709 43 . . . 40404 3710 1 In in IN 40404 3710 2 shells shell NNS 40404 3710 3 originally originally RB 40404 3710 4 made make VBN 40404 3710 5 of of IN 40404 3710 6 _ _ NNP 40404 3710 7 aragonite aragonite JJ 40404 3710 8 _ _ NNP 40404 3710 9 , , , 40404 3710 10 a a DT 40404 3710 11 crystalline crystalline NN 40404 3710 12 form form NN 40404 3710 13 of of IN 40404 3710 14 carbonate carbonate NN 40404 3710 15 of of IN 40404 3710 16 lime lime NN 40404 3710 17 , , , 40404 3710 18 that that DT 40404 3710 19 mineral mineral NN 40404 3710 20 is be VBZ 40404 3710 21 usually usually RB 40404 3710 22 replaced replace VBN 40404 3710 23 by by IN 40404 3710 24 _ _ NNP 40404 3710 25 calcite calcite NN 40404 3710 26 _ _ NNP 40404 3710 27 , , , 40404 3710 28 a a DT 40404 3710 29 more more RBR 40404 3710 30 stable stable JJ 40404 3710 31 form form NN 40404 3710 32 of of IN 40404 3710 33 the the DT 40404 3710 34 same same JJ 40404 3710 35 substance substance NN 40404 3710 36 . . . 40404 3711 1 The the DT 40404 3711 2 most most RBS 40404 3711 3 common common JJ 40404 3711 4 petrifying petrifying NN 40404 3711 5 materials material NNS 40404 3711 6 are be VBP 40404 3711 7 calcite calcite NN 40404 3711 8 , , , 40404 3711 9 silica silica NNP 40404 3711 10 , , , 40404 3711 11 and and CC 40404 3711 12 pyrite pyrite NNP 40404 3711 13 . . . 40404 3712 1 Often often RB 40404 3712 2 the the DT 40404 3712 3 organic organic JJ 40404 3712 4 substance substance NN 40404 3712 5 has have VBZ 40404 3712 6 neither neither RB 40404 3712 7 been be VBN 40404 3712 8 preserved preserve VBN 40404 3712 9 nor nor CC 40404 3712 10 replaced replace VBN 40404 3712 11 , , , 40404 3712 12 but but CC 40404 3712 13 the the DT 40404 3712 14 _ _ NNP 40404 3712 15 form form NN 40404 3712 16 _ _ NNP 40404 3712 17 has have VBZ 40404 3712 18 been be VBN 40404 3712 19 retained retain VBN 40404 3712 20 by by IN 40404 3712 21 means mean NNS 40404 3712 22 of of IN 40404 3712 23 molds mold NNS 40404 3712 24 and and CC 40404 3712 25 casts cast NNS 40404 3712 26 . . . 40404 3713 1 Permanent permanent JJ 40404 3713 2 impressions impression NNS 40404 3713 3 , , , 40404 3713 4 or or CC 40404 3713 5 molds mold NNS 40404 3713 6 , , , 40404 3713 7 may may MD 40404 3713 8 be be VB 40404 3713 9 made make VBN 40404 3713 10 in in IN 40404 3713 11 sediments sediment NNS 40404 3713 12 not not RB 40404 3713 13 only only RB 40404 3713 14 by by IN 40404 3713 15 the the DT 40404 3713 16 hard hard JJ 40404 3713 17 parts part NNS 40404 3713 18 of of IN 40404 3713 19 organisms organism NNS 40404 3713 20 , , , 40404 3713 21 but but CC 40404 3713 22 also also RB 40404 3713 23 by by IN 40404 3713 24 such such JJ 40404 3713 25 soft soft JJ 40404 3713 26 and and CC 40404 3713 27 perishable perishable JJ 40404 3713 28 parts part NNS 40404 3713 29 as as IN 40404 3713 30 the the DT 40404 3713 31 leaves leave NNS 40404 3713 32 of of IN 40404 3713 33 plants plant NNS 40404 3713 34 , , , 40404 3713 35 and and CC 40404 3713 36 , , , 40404 3713 37 in in IN 40404 3713 38 the the DT 40404 3713 39 rarest rare JJS 40404 3713 40 instances instance NNS 40404 3713 41 , , , 40404 3713 42 by by IN 40404 3713 43 the the DT 40404 3713 44 skin skin NN 40404 3713 45 of of IN 40404 3713 46 animals animal NNS 40404 3713 47 and and CC 40404 3713 48 the the DT 40404 3713 49 feathers feather NNS 40404 3713 50 of of IN 40404 3713 51 birds bird NNS 40404 3713 52 . . . 40404 3714 1 In in IN 40404 3714 2 fine fine RB 40404 3714 3 - - HYPH 40404 3714 4 grained grain VBN 40404 3714 5 limestones limestone NNS 40404 3714 6 even even RB 40404 3714 7 the the DT 40404 3714 8 imprints imprint NNS 40404 3714 9 of of IN 40404 3714 10 jellyfish jellyfish NN 40404 3714 11 have have VBP 40404 3714 12 been be VBN 40404 3714 13 retained retain VBN 40404 3714 14 . . . 40404 3715 1 The the DT 40404 3715 2 different different JJ 40404 3715 3 kinds kind NNS 40404 3715 4 of of IN 40404 3715 5 molds mold NNS 40404 3715 6 and and CC 40404 3715 7 casts cast NNS 40404 3715 8 may may MD 40404 3715 9 be be VB 40404 3715 10 illustrated illustrate VBN 40404 3715 11 by by IN 40404 3715 12 means mean NNS 40404 3715 13 of of IN 40404 3715 14 a a DT 40404 3715 15 clam clam NN 40404 3715 16 shell shell NN 40404 3715 17 and and CC 40404 3715 18 some some DT 40404 3715 19 moist moist JJ 40404 3715 20 clay clay NN 40404 3715 21 , , , 40404 3715 22 the the DT 40404 3715 23 latter latter JJ 40404 3715 24 representing represent VBG 40404 3715 25 the the DT 40404 3715 26 sediments sediment NNS 40404 3715 27 in in IN 40404 3715 28 which which WDT 40404 3715 29 the the DT 40404 3715 30 remains remain NNS 40404 3715 31 of of IN 40404 3715 32 animals animal NNS 40404 3715 33 and and CC 40404 3715 34 plants plant NNS 40404 3715 35 are be VBP 40404 3715 36 entombed entomb VBN 40404 3715 37 . . . 40404 3716 1 Imbedding imbed VBG 40404 3716 2 the the DT 40404 3716 3 shell shell NN 40404 3716 4 in in IN 40404 3716 5 the the DT 40404 3716 6 clay clay NN 40404 3716 7 and and CC 40404 3716 8 allowing allow VBG 40404 3716 9 the the DT 40404 3716 10 clay clay NN 40404 3716 11 to to IN 40404 3716 12 harden harden NNP 40404 3716 13 , , , 40404 3716 14 we -PRON- PRP 40404 3716 15 have have VBP 40404 3716 16 a a DT 40404 3716 17 _ _ NNP 40404 3716 18 mold mold NN 40404 3716 19 of of IN 40404 3716 20 the the DT 40404 3716 21 exterior exterior NNP 40404 3716 22 _ _ NNP 40404 3716 23 of of IN 40404 3716 24 the the DT 40404 3716 25 shell shell NN 40404 3716 26 , , , 40404 3716 27 as as IN 40404 3716 28 is be VBZ 40404 3716 29 seen see VBN 40404 3716 30 on on IN 40404 3716 31 cutting cut VBG 40404 3716 32 the the DT 40404 3716 33 clay clay NN 40404 3716 34 matrix matrix NN 40404 3716 35 in in IN 40404 3716 36 two two CD 40404 3716 37 and and CC 40404 3716 38 removing remove VBG 40404 3716 39 the the DT 40404 3716 40 shell shell NN 40404 3716 41 from from IN 40404 3716 42 it -PRON- PRP 40404 3716 43 . . . 40404 3717 1 Filling fill VBG 40404 3717 2 this this DT 40404 3717 3 mold mold NN 40404 3717 4 with with IN 40404 3717 5 clay clay NN 40404 3717 6 of of IN 40404 3717 7 different different JJ 40404 3717 8 color color NN 40404 3717 9 , , , 40404 3717 10 we -PRON- PRP 40404 3717 11 obtain obtain VBP 40404 3717 12 a a DT 40404 3717 13 _ _ NNP 40404 3717 14 cast cast NN 40404 3717 15 of of IN 40404 3717 16 the the DT 40404 3717 17 exterior exterior NNP 40404 3717 18 _ _ NNP 40404 3717 19 , , , 40404 3717 20 which which WDT 40404 3717 21 represents represent VBZ 40404 3717 22 accurately accurately RB 40404 3717 23 the the DT 40404 3717 24 original original JJ 40404 3717 25 form form NN 40404 3717 26 and and CC 40404 3717 27 surface surface NN 40404 3717 28 markings marking NNS 40404 3717 29 of of IN 40404 3717 30 the the DT 40404 3717 31 shell shell NN 40404 3717 32 . . . 40404 3718 1 In in IN 40404 3718 2 nature nature NN 40404 3718 3 , , , 40404 3718 4 shells shell NNS 40404 3718 5 and and CC 40404 3718 6 other other JJ 40404 3718 7 relics relic NNS 40404 3718 8 of of IN 40404 3718 9 animals animal NNS 40404 3718 10 or or CC 40404 3718 11 plants plant NNS 40404 3718 12 are be VBP 40404 3718 13 often often RB 40404 3718 14 removed remove VBN 40404 3718 15 by by IN 40404 3718 16 being be VBG 40404 3718 17 dissolved dissolve VBN 40404 3718 18 by by IN 40404 3718 19 percolating percolate VBG 40404 3718 20 waters water NNS 40404 3718 21 , , , 40404 3718 22 and and CC 40404 3718 23 the the DT 40404 3718 24 molds mold NNS 40404 3718 25 are be VBP 40404 3718 26 either either RB 40404 3718 27 filled fill VBN 40404 3718 28 with with IN 40404 3718 29 sediments sediment NNS 40404 3718 30 or or CC 40404 3718 31 with with IN 40404 3718 32 minerals mineral NNS 40404 3718 33 deposited deposit VBN 40404 3718 34 from from IN 40404 3718 35 solution solution NN 40404 3718 36 . . . 40404 3719 1 Where where WRB 40404 3719 2 the the DT 40404 3719 3 fossil fossil NN 40404 3719 4 is be VBZ 40404 3719 5 hollow hollow JJ 40404 3719 6 , , , 40404 3719 7 a a DT 40404 3719 8 _ _ NNP 40404 3719 9 cast cast NN 40404 3719 10 of of IN 40404 3719 11 the the DT 40404 3719 12 interior interior NNP 40404 3719 13 _ _ NNP 40404 3719 14 is be VBZ 40404 3719 15 made make VBN 40404 3719 16 in in IN 40404 3719 17 the the DT 40404 3719 18 same same JJ 40404 3719 19 way way NN 40404 3719 20 . . . 40404 3720 1 Interior interior JJ 40404 3720 2 casts cast NNS 40404 3720 3 of of IN 40404 3720 4 shells shell NNS 40404 3720 5 reproduce reproduce VBP 40404 3720 6 any any DT 40404 3720 7 markings marking NNS 40404 3720 8 on on IN 40404 3720 9 the the DT 40404 3720 10 inside inside NN 40404 3720 11 of of IN 40404 3720 12 the the DT 40404 3720 13 valves valve NNS 40404 3720 14 , , , 40404 3720 15 and and CC 40404 3720 16 casts cast NNS 40404 3720 17 of of IN 40404 3720 18 the the DT 40404 3720 19 interior interior NN 40404 3720 20 of of IN 40404 3720 21 the the DT 40404 3720 22 skulls skull NNS 40404 3720 23 of of IN 40404 3720 24 ancient ancient JJ 40404 3720 25 vertebrates vertebrate NNS 40404 3720 26 show show VBP 40404 3720 27 the the DT 40404 3720 28 form form NN 40404 3720 29 and and CC 40404 3720 30 size size NN 40404 3720 31 of of IN 40404 3720 32 their -PRON- PRP$ 40404 3720 33 brains brain NNS 40404 3720 34 . . . 40404 3721 1 = = NFP 40404 3721 2 Imperfection imperfection NN 40404 3721 3 of of IN 40404 3721 4 the the DT 40404 3721 5 life life NN 40404 3721 6 record.= record.= CD 40404 3721 7 At at IN 40404 3721 8 the the DT 40404 3721 9 present present JJ 40404 3721 10 time time NN 40404 3721 11 only only RB 40404 3721 12 the the DT 40404 3721 13 smallest small JJS 40404 3721 14 fraction fraction NN 40404 3721 15 of of IN 40404 3721 16 the the DT 40404 3721 17 life life NN 40404 3721 18 on on IN 40404 3721 19 earth earth NN 40404 3721 20 ever ever RB 40404 3721 21 gets get VBZ 40404 3721 22 entombed entomb VBN 40404 3721 23 in in IN 40404 3721 24 rocks rock NNS 40404 3721 25 now now RB 40404 3721 26 forming form VBG 40404 3721 27 . . . 40404 3722 1 In in IN 40404 3722 2 the the DT 40404 3722 3 forest forest NN 40404 3722 4 great great JJ 40404 3722 5 fallen fall VBN 40404 3722 6 tree tree NN 40404 3722 7 trunks trunk NNS 40404 3722 8 , , , 40404 3722 9 as as RB 40404 3722 10 well well RB 40404 3722 11 as as IN 40404 3722 12 dead dead JJ 40404 3722 13 leaves leave NNS 40404 3722 14 , , , 40404 3722 15 decay decay VBP 40404 3722 16 , , , 40404 3722 17 and and CC 40404 3722 18 only only RB 40404 3722 19 add add VB 40404 3722 20 a a DT 40404 3722 21 little little JJ 40404 3722 22 to to IN 40404 3722 23 the the DT 40404 3722 24 layer layer NN 40404 3722 25 of of IN 40404 3722 26 dark dark JJ 40404 3722 27 vegetable vegetable NN 40404 3722 28 mold mold NN 40404 3722 29 from from IN 40404 3722 30 which which WDT 40404 3722 31 they -PRON- PRP 40404 3722 32 grew grow VBD 40404 3722 33 . . . 40404 3723 1 The the DT 40404 3723 2 bones bone NNS 40404 3723 3 of of IN 40404 3723 4 land land NN 40404 3723 5 animals animal NNS 40404 3723 6 are be VBP 40404 3723 7 , , , 40404 3723 8 for for IN 40404 3723 9 the the DT 40404 3723 10 most most JJS 40404 3723 11 part part NN 40404 3723 12 , , , 40404 3723 13 left leave VBD 40404 3723 14 unburied unburied JJ 40404 3723 15 on on IN 40404 3723 16 the the DT 40404 3723 17 surface surface NN 40404 3723 18 and and CC 40404 3723 19 are be VBP 40404 3723 20 soon soon RB 40404 3723 21 destroyed destroy VBN 40404 3723 22 by by IN 40404 3723 23 chemical chemical JJ 40404 3723 24 agencies agency NNS 40404 3723 25 . . . 40404 3724 1 Even even RB 40404 3724 2 where where WRB 40404 3724 3 , , , 40404 3724 4 as as IN 40404 3724 5 in in IN 40404 3724 6 the the DT 40404 3724 7 swamps swamp NNS 40404 3724 8 of of IN 40404 3724 9 river river NN 40404 3724 10 , , , 40404 3724 11 flood flood NN 40404 3724 12 plains plain NNS 40404 3724 13 and and CC 40404 3724 14 in in IN 40404 3724 15 other other JJ 40404 3724 16 bogs bog NNS 40404 3724 17 , , , 40404 3724 18 there there EX 40404 3724 19 are be VBP 40404 3724 20 preserved preserve VBN 40404 3724 21 the the DT 40404 3724 22 remains remain NNS 40404 3724 23 of of IN 40404 3724 24 plants plant NNS 40404 3724 25 , , , 40404 3724 26 and and CC 40404 3724 27 sometimes sometimes RB 40404 3724 28 insects insect NNS 40404 3724 29 , , , 40404 3724 30 together together RB 40404 3724 31 with with IN 40404 3724 32 the the DT 40404 3724 33 bones bone NNS 40404 3724 34 of of IN 40404 3724 35 some some DT 40404 3724 36 animal animal NN 40404 3724 37 drowned drown VBD 40404 3724 38 or or CC 40404 3724 39 mired mire VBN 40404 3724 40 , , , 40404 3724 41 in in IN 40404 3724 42 most most JJS 40404 3724 43 cases case NNS 40404 3724 44 these these DT 40404 3724 45 swamp swamp NN 40404 3724 46 and and CC 40404 3724 47 bog bog NN 40404 3724 48 deposits deposit NNS 40404 3724 49 are be VBP 40404 3724 50 sooner soon RBR 40404 3724 51 or or CC 40404 3724 52 later later RB 40404 3724 53 destroyed destroy VBN 40404 3724 54 by by IN 40404 3724 55 the the DT 40404 3724 56 shifting shift VBG 40404 3724 57 channels channel NNS 40404 3724 58 of of IN 40404 3724 59 the the DT 40404 3724 60 stream stream NN 40404 3724 61 or or CC 40404 3724 62 by by IN 40404 3724 63 the the DT 40404 3724 64 general general JJ 40404 3724 65 erosion erosion NN 40404 3724 66 of of IN 40404 3724 67 the the DT 40404 3724 68 land land NN 40404 3724 69 . . . 40404 3725 1 In in IN 40404 3725 2 the the DT 40404 3725 3 sea sea NN 40404 3725 4 the the DT 40404 3725 5 conditions condition NNS 40404 3725 6 for for IN 40404 3725 7 preservation preservation NN 40404 3725 8 are be VBP 40404 3725 9 more more RBR 40404 3725 10 favorable favorable JJ 40404 3725 11 than than IN 40404 3725 12 on on IN 40404 3725 13 land land NN 40404 3725 14 ; ; : 40404 3725 15 yet yet CC 40404 3725 16 even even RB 40404 3725 17 here here RB 40404 3725 18 the the DT 40404 3725 19 proportion proportion NN 40404 3725 20 of of IN 40404 3725 21 animals animal NNS 40404 3725 22 and and CC 40404 3725 23 plants plant NNS 40404 3725 24 whose whose WP$ 40404 3725 25 hard hard JJ 40404 3725 26 parts part NNS 40404 3725 27 are be VBP 40404 3725 28 fossilized fossilize VBN 40404 3725 29 is be VBZ 40404 3725 30 very very RB 40404 3725 31 small small JJ 40404 3725 32 compared compare VBN 40404 3725 33 with with IN 40404 3725 34 those those DT 40404 3725 35 which which WDT 40404 3725 36 either either DT 40404 3725 37 totally totally RB 40404 3725 38 decay decay JJ 40404 3725 39 before before IN 40404 3725 40 they -PRON- PRP 40404 3725 41 are be VBP 40404 3725 42 buried bury VBN 40404 3725 43 in in IN 40404 3725 44 slowly slowly RB 40404 3725 45 accumulating accumulate VBG 40404 3725 46 sediments sediment NNS 40404 3725 47 or or CC 40404 3725 48 are be VBP 40404 3725 49 ground grind VBN 40404 3725 50 to to TO 40404 3725 51 powder powder VB 40404 3725 52 by by IN 40404 3725 53 waves wave NNS 40404 3725 54 and and CC 40404 3725 55 currents current NNS 40404 3725 56 . . . 40404 3726 1 We -PRON- PRP 40404 3726 2 may may MD 40404 3726 3 infer infer VB 40404 3726 4 that that IN 40404 3726 5 during during IN 40404 3726 6 each each DT 40404 3726 7 period period NN 40404 3726 8 of of IN 40404 3726 9 the the DT 40404 3726 10 past past NN 40404 3726 11 , , , 40404 3726 12 as as IN 40404 3726 13 at at IN 40404 3726 14 the the DT 40404 3726 15 present present NN 40404 3726 16 , , , 40404 3726 17 only only RB 40404 3726 18 a a DT 40404 3726 19 very very RB 40404 3726 20 insignificant insignificant JJ 40404 3726 21 fraction fraction NN 40404 3726 22 of of IN 40404 3726 23 the the DT 40404 3726 24 innumerable innumerable JJ 40404 3726 25 organisms organism NNS 40404 3726 26 of of IN 40404 3726 27 sea sea NN 40404 3726 28 and and CC 40404 3726 29 land land NN 40404 3726 30 escaped escape VBD 40404 3726 31 destruction destruction NN 40404 3726 32 and and CC 40404 3726 33 left leave VBD 40404 3726 34 in in IN 40404 3726 35 continental continental JJ 40404 3726 36 and and CC 40404 3726 37 oceanic oceanic JJ 40404 3726 38 deposits deposit VBZ 40404 3726 39 permanent permanent JJ 40404 3726 40 records record NNS 40404 3726 41 of of IN 40404 3726 42 their -PRON- PRP$ 40404 3726 43 existence existence NN 40404 3726 44 . . . 40404 3727 1 Scanty scanty VB 40404 3727 2 as as IN 40404 3727 3 these these DT 40404 3727 4 original original JJ 40404 3727 5 life life NN 40404 3727 6 records record NNS 40404 3727 7 must must MD 40404 3727 8 have have VB 40404 3727 9 been be VBN 40404 3727 10 , , , 40404 3727 11 they -PRON- PRP 40404 3727 12 have have VBP 40404 3727 13 been be VBN 40404 3727 14 largely largely RB 40404 3727 15 destroyed destroy VBN 40404 3727 16 by by IN 40404 3727 17 metamorphism metamorphism NN 40404 3727 18 of of IN 40404 3727 19 the the DT 40404 3727 20 rocks rock NNS 40404 3727 21 in in IN 40404 3727 22 which which WDT 40404 3727 23 they -PRON- PRP 40404 3727 24 were be VBD 40404 3727 25 imbedded imbed VBN 40404 3727 26 , , , 40404 3727 27 by by IN 40404 3727 28 solution solution NN 40404 3727 29 in in IN 40404 3727 30 underground underground JJ 40404 3727 31 waters water NNS 40404 3727 32 , , , 40404 3727 33 and and CC 40404 3727 34 by by IN 40404 3727 35 the the DT 40404 3727 36 vast vast JJ 40404 3727 37 denudation denudation NN 40404 3727 38 under under IN 40404 3727 39 which which WDT 40404 3727 40 the the DT 40404 3727 41 sediments sediment NNS 40404 3727 42 of of IN 40404 3727 43 earlier early JJR 40404 3727 44 periods period NNS 40404 3727 45 have have VBP 40404 3727 46 been be VBN 40404 3727 47 eroded erode VBN 40404 3727 48 to to TO 40404 3727 49 furnish furnish VB 40404 3727 50 materials material NNS 40404 3727 51 for for IN 40404 3727 52 the the DT 40404 3727 53 sedimentary sedimentary JJ 40404 3727 54 records record NNS 40404 3727 55 of of IN 40404 3727 56 later later JJ 40404 3727 57 times time NNS 40404 3727 58 . . . 40404 3728 1 Moreover moreover RB 40404 3728 2 , , , 40404 3728 3 very very RB 40404 3728 4 much much JJ 40404 3728 5 of of IN 40404 3728 6 what what WP 40404 3728 7 has have VBZ 40404 3728 8 escaped escape VBN 40404 3728 9 destruction destruction NN 40404 3728 10 still still RB 40404 3728 11 remains remain VBZ 40404 3728 12 undiscovered undiscovered JJ 40404 3728 13 . . . 40404 3729 1 The the DT 40404 3729 2 immense immense JJ 40404 3729 3 bulk bulk NN 40404 3729 4 of of IN 40404 3729 5 the the DT 40404 3729 6 stratified stratified JJ 40404 3729 7 rocks rock NNS 40404 3729 8 is be VBZ 40404 3729 9 buried bury VBN 40404 3729 10 and and CC 40404 3729 11 inaccessible inaccessible JJ 40404 3729 12 , , , 40404 3729 13 and and CC 40404 3729 14 the the DT 40404 3729 15 records record NNS 40404 3729 16 of of IN 40404 3729 17 the the DT 40404 3729 18 past past NN 40404 3729 19 which which WDT 40404 3729 20 it -PRON- PRP 40404 3729 21 contains contain VBZ 40404 3729 22 can can MD 40404 3729 23 never never RB 40404 3729 24 be be VB 40404 3729 25 known know VBN 40404 3729 26 . . . 40404 3730 1 Comparatively comparatively RB 40404 3730 2 few few JJ 40404 3730 3 outcrops outcrop NNS 40404 3730 4 have have VBP 40404 3730 5 been be VBN 40404 3730 6 thoroughly thoroughly RB 40404 3730 7 searched search VBN 40404 3730 8 for for IN 40404 3730 9 fossils fossil NNS 40404 3730 10 . . . 40404 3731 1 Although although IN 40404 3731 2 new new JJ 40404 3731 3 species specie NNS 40404 3731 4 are be VBP 40404 3731 5 constantly constantly RB 40404 3731 6 being be VBG 40404 3731 7 discovered discover VBN 40404 3731 8 , , , 40404 3731 9 each each DT 40404 3731 10 discovery discovery NN 40404 3731 11 may may MD 40404 3731 12 be be VB 40404 3731 13 considered consider VBN 40404 3731 14 as as IN 40404 3731 15 the the DT 40404 3731 16 outcome outcome NN 40404 3731 17 of of IN 40404 3731 18 a a DT 40404 3731 19 series series NN 40404 3731 20 of of IN 40404 3731 21 happy happy JJ 40404 3731 22 accidents,--that accidents,--that IN 40404 3731 23 the the DT 40404 3731 24 remains remain NNS 40404 3731 25 of of IN 40404 3731 26 individuals individual NNS 40404 3731 27 of of IN 40404 3731 28 this this DT 40404 3731 29 particular particular JJ 40404 3731 30 species specie NNS 40404 3731 31 happened happen VBD 40404 3731 32 to to TO 40404 3731 33 be be VB 40404 3731 34 imbedded imbed VBN 40404 3731 35 and and CC 40404 3731 36 fossilized fossilize VBN 40404 3731 37 , , , 40404 3731 38 that that IN 40404 3731 39 they -PRON- PRP 40404 3731 40 happened happen VBD 40404 3731 41 to to TO 40404 3731 42 escape escape VB 40404 3731 43 destruction destruction NN 40404 3731 44 during during IN 40404 3731 45 long long JJ 40404 3731 46 ages age NNS 40404 3731 47 , , , 40404 3731 48 and and CC 40404 3731 49 that that IN 40404 3731 50 they -PRON- PRP 40404 3731 51 happened happen VBD 40404 3731 52 to to TO 40404 3731 53 be be VB 40404 3731 54 exposed expose VBN 40404 3731 55 and and CC 40404 3731 56 found find VBN 40404 3731 57 . . . 40404 3732 1 = = NFP 40404 3732 2 Some some DT 40404 3732 3 inferences inference NNS 40404 3732 4 from from IN 40404 3732 5 the the DT 40404 3732 6 records record NNS 40404 3732 7 of of IN 40404 3732 8 the the DT 40404 3732 9 history history NN 40404 3732 10 of of IN 40404 3732 11 life life NN 40404 3732 12 upon upon IN 40404 3732 13 the the DT 40404 3732 14 planet.= planet.= JJ 40404 3732 15 Meager Meager NNP 40404 3732 16 as as IN 40404 3732 17 are be VBP 40404 3732 18 these these DT 40404 3732 19 records record NNS 40404 3732 20 , , , 40404 3732 21 they -PRON- PRP 40404 3732 22 set set VBD 40404 3732 23 forth forth RP 40404 3732 24 plainly plainly RB 40404 3732 25 some some DT 40404 3732 26 important important JJ 40404 3732 27 truths truth NNS 40404 3732 28 which which WDT 40404 3732 29 we -PRON- PRP 40404 3732 30 will will MD 40404 3732 31 now now RB 40404 3732 32 briefly briefly RB 40404 3732 33 mention mention VB 40404 3732 34 . . . 40404 3733 1 1 1 LS 40404 3733 2 . . . 40404 3734 1 Each each DT 40404 3734 2 series series NN 40404 3734 3 of of IN 40404 3734 4 the the DT 40404 3734 5 stratified stratify VBN 40404 3734 6 rocks rock NNS 40404 3734 7 , , , 40404 3734 8 except except IN 40404 3734 9 the the DT 40404 3734 10 very very RB 40404 3734 11 deepest deep JJS 40404 3734 12 , , , 40404 3734 13 contains contain VBZ 40404 3734 14 vestiges vestige NNS 40404 3734 15 of of IN 40404 3734 16 life life NN 40404 3734 17 . . . 40404 3735 1 Hence hence RB 40404 3735 2 _ _ NNP 40404 3735 3 the the DT 40404 3735 4 earth earth NN 40404 3735 5 was be VBD 40404 3735 6 tenanted tenant VBN 40404 3735 7 by by IN 40404 3735 8 living live VBG 40404 3735 9 creatures creature NNS 40404 3735 10 for for IN 40404 3735 11 an an DT 40404 3735 12 uncalculated uncalculated JJ 40404 3735 13 length length NN 40404 3735 14 of of IN 40404 3735 15 time time NN 40404 3735 16 before before IN 40404 3735 17 human human JJ 40404 3735 18 history history NN 40404 3735 19 began begin VBD 40404 3735 20 _ _ NNP 40404 3735 21 . . . 40404 3736 1 2 2 LS 40404 3736 2 . . . 40404 3737 1 _ _ NNP 40404 3737 2 Life Life NNP 40404 3737 3 on on IN 40404 3737 4 the the DT 40404 3737 5 earth earth NN 40404 3737 6 has have VBZ 40404 3737 7 been be VBN 40404 3737 8 ever ever RB 40404 3737 9 - - HYPH 40404 3737 10 changing change VBG 40404 3737 11 . . . 40404 3737 12 _ _ NNP 40404 3737 13 The the DT 40404 3737 14 youngest young JJS 40404 3737 15 strata strata NN 40404 3737 16 hold hold VBP 40404 3737 17 the the DT 40404 3737 18 remains remain NNS 40404 3737 19 of of IN 40404 3737 20 existing exist VBG 40404 3737 21 species specie NNS 40404 3737 22 of of IN 40404 3737 23 animals animal NNS 40404 3737 24 and and CC 40404 3737 25 plants plant NNS 40404 3737 26 and and CC 40404 3737 27 those those DT 40404 3737 28 of of IN 40404 3737 29 species specie NNS 40404 3737 30 and and CC 40404 3737 31 varieties variety NNS 40404 3737 32 closely closely RB 40404 3737 33 allied ally VBD 40404 3737 34 to to IN 40404 3737 35 them -PRON- PRP 40404 3737 36 . . . 40404 3738 1 Strata Strata NNP 40404 3738 2 somewhat somewhat RB 40404 3738 3 older old JJR 40404 3738 4 contain contain VBP 40404 3738 5 fewer few JJR 40404 3738 6 existing exist VBG 40404 3738 7 species specie NNS 40404 3738 8 , , , 40404 3738 9 and and CC 40404 3738 10 in in IN 40404 3738 11 strata strata NN 40404 3738 12 of of IN 40404 3738 13 a a DT 40404 3738 14 still still RB 40404 3738 15 earlier early RBR 40404 3738 16 , , , 40404 3738 17 but but CC 40404 3738 18 by by IN 40404 3738 19 no no DT 40404 3738 20 means means NN 40404 3738 21 an an DT 40404 3738 22 ancient ancient JJ 40404 3738 23 epoch epoch NN 40404 3738 24 , , , 40404 3738 25 no no DT 40404 3738 26 existing exist VBG 40404 3738 27 species specie NNS 40404 3738 28 are be VBP 40404 3738 29 to to TO 40404 3738 30 be be VB 40404 3738 31 found find VBN 40404 3738 32 ; ; : 40404 3738 33 the the DT 40404 3738 34 species specie NNS 40404 3738 35 of of IN 40404 3738 36 that that DT 40404 3738 37 epoch epoch NN 40404 3738 38 and and CC 40404 3738 39 of of IN 40404 3738 40 previous previous JJ 40404 3738 41 epochs epoch NNS 40404 3738 42 have have VBP 40404 3738 43 vanished vanish VBN 40404 3738 44 from from IN 40404 3738 45 the the DT 40404 3738 46 living live VBG 40404 3738 47 world world NN 40404 3738 48 . . . 40404 3739 1 During during IN 40404 3739 2 all all DT 40404 3739 3 geological geological JJ 40404 3739 4 time time NN 40404 3739 5 since since IN 40404 3739 6 life life NN 40404 3739 7 began begin VBD 40404 3739 8 on on IN 40404 3739 9 earth earth NN 40404 3739 10 old old JJ 40404 3739 11 species specie NNS 40404 3739 12 have have VBP 40404 3739 13 constantly constantly RB 40404 3739 14 become become VBN 40404 3739 15 extinct extinct JJ 40404 3739 16 and and CC 40404 3739 17 with with IN 40404 3739 18 them -PRON- PRP 40404 3739 19 the the DT 40404 3739 20 genera genera NN 40404 3739 21 and and CC 40404 3739 22 families family NNS 40404 3739 23 to to TO 40404 3739 24 which which WDT 40404 3739 25 they -PRON- PRP 40404 3739 26 belong belong VBP 40404 3739 27 , , , 40404 3739 28 and and CC 40404 3739 29 other other JJ 40404 3739 30 species specie NNS 40404 3739 31 , , , 40404 3739 32 genera genera NN 40404 3739 33 , , , 40404 3739 34 and and CC 40404 3739 35 families family NNS 40404 3739 36 have have VBP 40404 3739 37 replaced replace VBN 40404 3739 38 them -PRON- PRP 40404 3739 39 . . . 40404 3740 1 The the DT 40404 3740 2 fossils fossil NNS 40404 3740 3 of of IN 40404 3740 4 each each DT 40404 3740 5 formation formation NN 40404 3740 6 differ differ VBP 40404 3740 7 on on IN 40404 3740 8 the the DT 40404 3740 9 whole whole NN 40404 3740 10 from from IN 40404 3740 11 those those DT 40404 3740 12 of of IN 40404 3740 13 every every DT 40404 3740 14 other other JJ 40404 3740 15 . . . 40404 3741 1 The the DT 40404 3741 2 assemblage assemblage NN 40404 3741 3 of of IN 40404 3741 4 animals animal NNS 40404 3741 5 and and CC 40404 3741 6 plants plant NNS 40404 3741 7 ( ( -LRB- 40404 3741 8 the the DT 40404 3741 9 _ _ NNP 40404 3741 10 fauna fauna NNP 40404 3741 11 - - HYPH 40404 3741 12 flora flora NNP 40404 3741 13 _ _ NNP 40404 3741 14 ) ) -RRB- 40404 3741 15 of of IN 40404 3741 16 each each DT 40404 3741 17 epoch epoch NN 40404 3741 18 differs differ VBZ 40404 3741 19 from from IN 40404 3741 20 that that DT 40404 3741 21 of of IN 40404 3741 22 every every DT 40404 3741 23 other other JJ 40404 3741 24 epoch epoch NN 40404 3741 25 . . . 40404 3742 1 In in IN 40404 3742 2 many many JJ 40404 3742 3 cases case NNS 40404 3742 4 the the DT 40404 3742 5 extinction extinction NN 40404 3742 6 of of IN 40404 3742 7 a a DT 40404 3742 8 type type NN 40404 3742 9 has have VBZ 40404 3742 10 been be VBN 40404 3742 11 gradual gradual JJ 40404 3742 12 ; ; : 40404 3742 13 in in IN 40404 3742 14 other other JJ 40404 3742 15 instances instance NNS 40404 3742 16 apparently apparently RB 40404 3742 17 abrupt abrupt JJ 40404 3742 18 . . . 40404 3743 1 There there EX 40404 3743 2 is be VBZ 40404 3743 3 no no DT 40404 3743 4 evidence evidence NN 40404 3743 5 that that IN 40404 3743 6 any any DT 40404 3743 7 organism organism NN 40404 3743 8 once once RB 40404 3743 9 become become VBP 40404 3743 10 extinct extinct JJ 40404 3743 11 has have VBZ 40404 3743 12 ever ever RB 40404 3743 13 reappeared reappear VBN 40404 3743 14 . . . 40404 3744 1 The the DT 40404 3744 2 duration duration NN 40404 3744 3 of of IN 40404 3744 4 a a DT 40404 3744 5 species species NN 40404 3744 6 in in IN 40404 3744 7 time time NN 40404 3744 8 , , , 40404 3744 9 or or CC 40404 3744 10 its -PRON- PRP$ 40404 3744 11 " " `` 40404 3744 12 vertical vertical JJ 40404 3744 13 range range NN 40404 3744 14 " " '' 40404 3744 15 through through IN 40404 3744 16 the the DT 40404 3744 17 strata strata NN 40404 3744 18 , , , 40404 3744 19 varies vary VBZ 40404 3744 20 greatly greatly RB 40404 3744 21 . . . 40404 3745 1 Some some DT 40404 3745 2 species specie NNS 40404 3745 3 are be VBP 40404 3745 4 limited limited JJ 40404 3745 5 to to IN 40404 3745 6 a a DT 40404 3745 7 stratum stratum NN 40404 3745 8 a a DT 40404 3745 9 few few JJ 40404 3745 10 feet foot NNS 40404 3745 11 in in IN 40404 3745 12 thickness thickness NN 40404 3745 13 ; ; . 40404 3745 14 some some DT 40404 3745 15 may may MD 40404 3745 16 range range VB 40404 3745 17 through through IN 40404 3745 18 an an DT 40404 3745 19 entire entire JJ 40404 3745 20 formation formation NN 40404 3745 21 and and CC 40404 3745 22 be be VB 40404 3745 23 found find VBN 40404 3745 24 but but CC 40404 3745 25 little little JJ 40404 3745 26 modified modify VBN 40404 3745 27 in in IN 40404 3745 28 still still RB 40404 3745 29 higher high JJR 40404 3745 30 beds bed NNS 40404 3745 31 . . . 40404 3746 1 A a DT 40404 3746 2 formation formation NN 40404 3746 3 may may MD 40404 3746 4 thus thus RB 40404 3746 5 often often RB 40404 3746 6 be be VB 40404 3746 7 divided divide VBN 40404 3746 8 into into IN 40404 3746 9 zones zone NNS 40404 3746 10 , , , 40404 3746 11 each each DT 40404 3746 12 characterized characterize VBN 40404 3746 13 by by IN 40404 3746 14 its -PRON- PRP$ 40404 3746 15 own own JJ 40404 3746 16 peculiar peculiar JJ 40404 3746 17 species species NN 40404 3746 18 . . . 40404 3747 1 As as IN 40404 3747 2 a a DT 40404 3747 3 rule rule NN 40404 3747 4 , , , 40404 3747 5 the the DT 40404 3747 6 simpler simple JJR 40404 3747 7 organisms organism NNS 40404 3747 8 have have VBP 40404 3747 9 a a DT 40404 3747 10 longer long JJR 40404 3747 11 duration duration NN 40404 3747 12 as as IN 40404 3747 13 species specie NNS 40404 3747 14 , , , 40404 3747 15 though though IN 40404 3747 16 not not RB 40404 3747 17 as as IN 40404 3747 18 individuals individual NNS 40404 3747 19 , , , 40404 3747 20 than than IN 40404 3747 21 the the DT 40404 3747 22 more more RBR 40404 3747 23 complex complex JJ 40404 3747 24 . . . 40404 3748 1 3 3 LS 40404 3748 2 . . . 40404 3749 1 _ _ NNP 40404 3749 2 The the DT 40404 3749 3 larger large JJR 40404 3749 4 zoölogical zoölogical JJ 40404 3749 5 and and CC 40404 3749 6 botanical botanical JJ 40404 3749 7 groupings grouping NNS 40404 3749 8 survive survive VBP 40404 3749 9 longer long RBR 40404 3749 10 than than IN 40404 3749 11 the the DT 40404 3749 12 smaller small JJR 40404 3749 13 . . . 40404 3749 14 _ _ NNP 40404 3749 15 Species Species NNPS 40404 3749 16 are be VBP 40404 3749 17 so so RB 40404 3749 18 short short RB 40404 3749 19 - - HYPH 40404 3749 20 lived live VBN 40404 3749 21 that that IN 40404 3749 22 a a DT 40404 3749 23 single single JJ 40404 3749 24 geological geological JJ 40404 3749 25 epoch epoch NN 40404 3749 26 may may MD 40404 3749 27 be be VB 40404 3749 28 marked mark VBN 40404 3749 29 by by IN 40404 3749 30 several several JJ 40404 3749 31 more more RBR 40404 3749 32 or or CC 40404 3749 33 less less RBR 40404 3749 34 complete complete JJ 40404 3749 35 extinctions extinction NNS 40404 3749 36 of of IN 40404 3749 37 the the DT 40404 3749 38 species specie NNS 40404 3749 39 of of IN 40404 3749 40 its -PRON- PRP$ 40404 3749 41 fauna fauna NNS 40404 3749 42 - - HYPH 40404 3749 43 flora flora NNS 40404 3749 44 and and CC 40404 3749 45 their -PRON- PRP$ 40404 3749 46 replacement replacement NN 40404 3749 47 by by IN 40404 3749 48 other other JJ 40404 3749 49 species specie NNS 40404 3749 50 . . . 40404 3750 1 A a DT 40404 3750 2 genus genus NN 40404 3750 3 continues continue VBZ 40404 3750 4 with with IN 40404 3750 5 new new JJ 40404 3750 6 species specie NNS 40404 3750 7 after after IN 40404 3750 8 all all PDT 40404 3750 9 the the DT 40404 3750 10 species specie NNS 40404 3750 11 with with IN 40404 3750 12 which which WDT 40404 3750 13 it -PRON- PRP 40404 3750 14 began begin VBD 40404 3750 15 have have VBP 40404 3750 16 become become VBN 40404 3750 17 extinct extinct JJ 40404 3750 18 . . . 40404 3751 1 Families family NNS 40404 3751 2 survive survive VBP 40404 3751 3 genera genera NN 40404 3751 4 , , , 40404 3751 5 and and CC 40404 3751 6 orders order VBZ 40404 3751 7 families family NNS 40404 3751 8 . . . 40404 3752 1 Classes class NNS 40404 3752 2 are be VBP 40404 3752 3 so so RB 40404 3752 4 long long RB 40404 3752 5 - - HYPH 40404 3752 6 lived live VBD 40404 3752 7 that that IN 40404 3752 8 most most JJS 40404 3752 9 of of IN 40404 3752 10 those those DT 40404 3752 11 which which WDT 40404 3752 12 are be VBP 40404 3752 13 known know VBN 40404 3752 14 from from IN 40404 3752 15 the the DT 40404 3752 16 earliest early JJS 40404 3752 17 formations formation NNS 40404 3752 18 are be VBP 40404 3752 19 represented represent VBN 40404 3752 20 by by IN 40404 3752 21 living live VBG 40404 3752 22 forms form NNS 40404 3752 23 , , , 40404 3752 24 and and CC 40404 3752 25 no no DT 40404 3752 26 subkingdom subkingdom NN 40404 3752 27 has have VBZ 40404 3752 28 ever ever RB 40404 3752 29 become become VBN 40404 3752 30 extinct extinct JJ 40404 3752 31 . . . 40404 3753 1 Thus thus RB 40404 3753 2 , , , 40404 3753 3 to to TO 40404 3753 4 take take VB 40404 3753 5 an an DT 40404 3753 6 example example NN 40404 3753 7 from from IN 40404 3753 8 the the DT 40404 3753 9 stony stony NN 40404 3753 10 corals,--the corals,--the NNP 40404 3753 11 _ _ NNP 40404 3753 12 zoantharia_,--the zoantharia_,--the DT 40404 3753 13 particular particular JJ 40404 3753 14 characters character NNS 40404 3753 15 -- -- : 40404 3753 16 which which WDT 40404 3753 17 constituted constitute VBD 40404 3753 18 a a DT 40404 3753 19 certain certain JJ 40404 3753 20 _ _ NNP 40404 3753 21 species_--_Facosites species_--_facosite NNS 40404 3753 22 niagarensis_--of niagarensis_--of VBP 40404 3753 23 the the DT 40404 3753 24 order order NN 40404 3753 25 are be VBP 40404 3753 26 confined confine VBN 40404 3753 27 to to IN 40404 3753 28 the the DT 40404 3753 29 Niagara Niagara NNP 40404 3753 30 series series NN 40404 3753 31 . . . 40404 3754 1 Its -PRON- PRP$ 40404 3754 2 _ _ NNP 40404 3754 3 generic generic JJ 40404 3754 4 _ _ NNP 40404 3754 5 characters character NNS 40404 3754 6 appeared appear VBD 40404 3754 7 in in IN 40404 3754 8 other other JJ 40404 3754 9 species specie NNS 40404 3754 10 earlier early RBR 40404 3754 11 in in IN 40404 3754 12 the the DT 40404 3754 13 Silurian Silurian NNP 40404 3754 14 and and CC 40404 3754 15 continued continue VBD 40404 3754 16 through through IN 40404 3754 17 the the DT 40404 3754 18 Devonian Devonian NNP 40404 3754 19 . . . 40404 3755 1 Its -PRON- PRP$ 40404 3755 2 _ _ NNP 40404 3755 3 family family NN 40404 3755 4 _ _ NNP 40404 3755 5 characters character NNS 40404 3755 6 , , , 40404 3755 7 represented represent VBN 40404 3755 8 in in IN 40404 3755 9 different different JJ 40404 3755 10 genera genera NN 40404 3755 11 and and CC 40404 3755 12 species specie NNS 40404 3755 13 , , , 40404 3755 14 range range VBP 40404 3755 15 from from IN 40404 3755 16 the the DT 40404 3755 17 Ordovician Ordovician NNP 40404 3755 18 to to IN 40404 3755 19 the the DT 40404 3755 20 close close NN 40404 3755 21 of of IN 40404 3755 22 the the DT 40404 3755 23 Paleozoic Paleozoic NNP 40404 3755 24 ; ; : 40404 3755 25 while while IN 40404 3755 26 the the DT 40404 3755 27 characters character NNS 40404 3755 28 which which WDT 40404 3755 29 it -PRON- PRP 40404 3755 30 shares share VBZ 40404 3755 31 with with IN 40404 3755 32 all all DT 40404 3755 33 its -PRON- PRP$ 40404 3755 34 order order NN 40404 3755 35 , , , 40404 3755 36 the the DT 40404 3755 37 Zoantharia Zoantharia NNP 40404 3755 38 , , , 40404 3755 39 began begin VBD 40404 3755 40 in in IN 40404 3755 41 the the DT 40404 3755 42 Cambrian Cambrian NNP 40404 3755 43 and and CC 40404 3755 44 are be VBP 40404 3755 45 found find VBN 40404 3755 46 in in IN 40404 3755 47 living live VBG 40404 3755 48 species specie NNS 40404 3755 49 . . . 40404 3756 1 4 4 LS 40404 3756 2 . . . 40404 3757 1 _ _ NNP 40404 3757 2 The the DT 40404 3757 3 change change NN 40404 3757 4 in in IN 40404 3757 5 organisms organism NNS 40404 3757 6 has have VBZ 40404 3757 7 been be VBN 40404 3757 8 gradual gradual JJ 40404 3757 9 . . . 40404 3757 10 _ _ NNP 40404 3757 11 The the DT 40404 3757 12 fossils fossil NNS 40404 3757 13 of of IN 40404 3757 14 each each DT 40404 3757 15 life life NN 40404 3757 16 zone zone NN 40404 3757 17 and and CC 40404 3757 18 of of IN 40404 3757 19 each each DT 40404 3757 20 formation formation NN 40404 3757 21 of of IN 40404 3757 22 a a DT 40404 3757 23 conformable conformable JJ 40404 3757 24 series series NN 40404 3757 25 closely closely RB 40404 3757 26 resemble resemble JJ 40404 3757 27 , , , 40404 3757 28 with with IN 40404 3757 29 some some DT 40404 3757 30 explainable explainable JJ 40404 3757 31 exceptions exception NNS 40404 3757 32 , , , 40404 3757 33 those those DT 40404 3757 34 of of IN 40404 3757 35 the the DT 40404 3757 36 beds bed NNS 40404 3757 37 immediately immediately RB 40404 3757 38 above above IN 40404 3757 39 and and CC 40404 3757 40 below below RB 40404 3757 41 . . . 40404 3758 1 The the DT 40404 3758 2 animals animal NNS 40404 3758 3 and and CC 40404 3758 4 plants plant NNS 40404 3758 5 which which WDT 40404 3758 6 tenanted tenant VBD 40404 3758 7 the the DT 40404 3758 8 earth earth NN 40404 3758 9 during during IN 40404 3758 10 any any DT 40404 3758 11 geological geological JJ 40404 3758 12 epoch epoch NN 40404 3758 13 are be VBP 40404 3758 14 so so RB 40404 3758 15 closely closely RB 40404 3758 16 related related JJ 40404 3758 17 to to IN 40404 3758 18 those those DT 40404 3758 19 of of IN 40404 3758 20 the the DT 40404 3758 21 preceding precede VBG 40404 3758 22 and and CC 40404 3758 23 the the DT 40404 3758 24 succeeding succeed VBG 40404 3758 25 epochs epoch NNS 40404 3758 26 that that WDT 40404 3758 27 we -PRON- PRP 40404 3758 28 may may MD 40404 3758 29 consider consider VB 40404 3758 30 them -PRON- PRP 40404 3758 31 to to TO 40404 3758 32 be be VB 40404 3758 33 the the DT 40404 3758 34 descendants descendant NNS 40404 3758 35 of of IN 40404 3758 36 the the DT 40404 3758 37 one one NN 40404 3758 38 and and CC 40404 3758 39 the the DT 40404 3758 40 ancestors ancestor NNS 40404 3758 41 of of IN 40404 3758 42 the the DT 40404 3758 43 other other JJ 40404 3758 44 , , , 40404 3758 45 thus thus RB 40404 3758 46 accounting account VBG 40404 3758 47 for for IN 40404 3758 48 the the DT 40404 3758 49 resemblance resemblance NN 40404 3758 50 by by IN 40404 3758 51 heredity heredity NN 40404 3758 52 . . . 40404 3759 1 It -PRON- PRP 40404 3759 2 is be VBZ 40404 3759 3 therefore therefore RB 40404 3759 4 believed believe VBN 40404 3759 5 that that IN 40404 3759 6 the the DT 40404 3759 7 species specie NNS 40404 3759 8 of of IN 40404 3759 9 animals animal NNS 40404 3759 10 and and CC 40404 3759 11 plants plant NNS 40404 3759 12 now now RB 40404 3759 13 living live VBG 40404 3759 14 on on IN 40404 3759 15 the the DT 40404 3759 16 earth earth NN 40404 3759 17 are be VBP 40404 3759 18 the the DT 40404 3759 19 descendants descendant NNS 40404 3759 20 of of IN 40404 3759 21 the the DT 40404 3759 22 species specie NNS 40404 3759 23 whose whose WP$ 40404 3759 24 remains remain NNS 40404 3759 25 we -PRON- PRP 40404 3759 26 find find VBP 40404 3759 27 entombed entomb VBN 40404 3759 28 in in IN 40404 3759 29 the the DT 40404 3759 30 rocks rock NNS 40404 3759 31 , , , 40404 3759 32 and and CC 40404 3759 33 that that IN 40404 3759 34 the the DT 40404 3759 35 chain chain NN 40404 3759 36 of of IN 40404 3759 37 life life NN 40404 3759 38 has have VBZ 40404 3759 39 been be VBN 40404 3759 40 unbroken unbroken VBN 40404 3759 41 since since IN 40404 3759 42 its -PRON- PRP$ 40404 3759 43 beginning beginning NN 40404 3759 44 . . . 40404 3760 1 5 5 CD 40404 3760 2 . . . 40404 3761 1 _ _ NNP 40404 3761 2 The the DT 40404 3761 3 change change NN 40404 3761 4 in in IN 40404 3761 5 species specie NNS 40404 3761 6 has have VBZ 40404 3761 7 been be VBN 40404 3761 8 a a DT 40404 3761 9 gradual gradual JJ 40404 3761 10 differentiation differentiation NN 40404 3761 11 . . . 40404 3761 12 _ _ NNP 40404 3761 13 Tracing trace VBG 40404 3761 14 the the DT 40404 3761 15 lines line NNS 40404 3761 16 of of IN 40404 3761 17 descent descent NN 40404 3761 18 of of IN 40404 3761 19 various various JJ 40404 3761 20 animals animal NNS 40404 3761 21 and and CC 40404 3761 22 plants plant NNS 40404 3761 23 of of IN 40404 3761 24 the the DT 40404 3761 25 present present JJ 40404 3761 26 backward backward RB 40404 3761 27 through through IN 40404 3761 28 the the DT 40404 3761 29 divisions division NNS 40404 3761 30 of of IN 40404 3761 31 geologic geologic NN 40404 3761 32 time time NN 40404 3761 33 , , , 40404 3761 34 we -PRON- PRP 40404 3761 35 find find VBP 40404 3761 36 that that IN 40404 3761 37 these these DT 40404 3761 38 lines line NNS 40404 3761 39 of of IN 40404 3761 40 descent descent NN 40404 3761 41 converge converge NN 40404 3761 42 and and CC 40404 3761 43 unite unite VB 40404 3761 44 in in RP 40404 3761 45 simpler simple JJR 40404 3761 46 and and CC 40404 3761 47 still still RB 40404 3761 48 simpler simple JJR 40404 3761 49 types type NNS 40404 3761 50 . . . 40404 3762 1 The the DT 40404 3762 2 development development NN 40404 3762 3 of of IN 40404 3762 4 life life NN 40404 3762 5 may may MD 40404 3762 6 be be VB 40404 3762 7 represented represent VBN 40404 3762 8 by by IN 40404 3762 9 a a DT 40404 3762 10 tree tree NN 40404 3762 11 whose whose WP$ 40404 3762 12 trunk trunk NN 40404 3762 13 is be VBZ 40404 3762 14 found find VBN 40404 3762 15 in in IN 40404 3762 16 the the DT 40404 3762 17 earliest early JJS 40404 3762 18 ages age NNS 40404 3762 19 and and CC 40404 3762 20 whose whose WP$ 40404 3762 21 branches branch NNS 40404 3762 22 spread spread VBP 40404 3762 23 and and CC 40404 3762 24 subdivide subdivide VB 40404 3762 25 to to IN 40404 3762 26 the the DT 40404 3762 27 growing grow VBG 40404 3762 28 twigs twig NNS 40404 3762 29 of of IN 40404 3762 30 present present JJ 40404 3762 31 species specie NNS 40404 3762 32 . . . 40404 3763 1 6 6 CD 40404 3763 2 . . . 40404 3764 1 _ _ NNP 40404 3764 2 The the DT 40404 3764 3 change change NN 40404 3764 4 in in IN 40404 3764 5 organisms organism NNS 40404 3764 6 throughout throughout IN 40404 3764 7 geologic geologic NN 40404 3764 8 time time NN 40404 3764 9 has have VBZ 40404 3764 10 been be VBN 40404 3764 11 a a DT 40404 3764 12 progressive progressive JJ 40404 3764 13 change change NN 40404 3764 14 . . . 40404 3764 15 _ _ NNP 40404 3764 16 In in IN 40404 3764 17 the the DT 40404 3764 18 earliest early JJS 40404 3764 19 ages age NNS 40404 3764 20 the the DT 40404 3764 21 only only JJ 40404 3764 22 animals animal NNS 40404 3764 23 and and CC 40404 3764 24 plants plant NNS 40404 3764 25 on on IN 40404 3764 26 the the DT 40404 3764 27 earth earth NN 40404 3764 28 were be VBD 40404 3764 29 lowly lowly JJ 40404 3764 30 forms form NNS 40404 3764 31 , , , 40404 3764 32 simple simple JJ 40404 3764 33 and and CC 40404 3764 34 generalized generalize VBN 40404 3764 35 in in IN 40404 3764 36 structure structure NN 40404 3764 37 ; ; : 40404 3764 38 while while IN 40404 3764 39 succeeding succeed VBG 40404 3764 40 ages age NNS 40404 3764 41 have have VBP 40404 3764 42 been be VBN 40404 3764 43 characterized characterize VBN 40404 3764 44 by by IN 40404 3764 45 the the DT 40404 3764 46 introduction introduction NN 40404 3764 47 of of IN 40404 3764 48 types type NNS 40404 3764 49 more more JJR 40404 3764 50 and and CC 40404 3764 51 more more RBR 40404 3764 52 specialized specialized JJ 40404 3764 53 and and CC 40404 3764 54 complex complex JJ 40404 3764 55 , , , 40404 3764 56 and and CC 40404 3764 57 therefore therefore RB 40404 3764 58 of of IN 40404 3764 59 higher high JJR 40404 3764 60 rank rank NN 40404 3764 61 in in IN 40404 3764 62 the the DT 40404 3764 63 scale scale NN 40404 3764 64 of of IN 40404 3764 65 being be VBG 40404 3764 66 . . . 40404 3765 1 Thus thus RB 40404 3765 2 the the DT 40404 3765 3 Algonkian Algonkian NNP 40404 3765 4 contains contain VBZ 40404 3765 5 the the DT 40404 3765 6 remains remain NNS 40404 3765 7 of of IN 40404 3765 8 only only RB 40404 3765 9 the the DT 40404 3765 10 humblest humblest NN 40404 3765 11 forms form NNS 40404 3765 12 of of IN 40404 3765 13 the the DT 40404 3765 14 invertebrates invertebrates NNPS 40404 3765 15 . . . 40404 3766 1 In in IN 40404 3766 2 the the DT 40404 3766 3 Cambrian cambrian JJ 40404 3766 4 , , , 40404 3766 5 Ordovician Ordovician NNP 40404 3766 6 , , , 40404 3766 7 and and CC 40404 3766 8 Silurian silurian JJ 40404 3766 9 the the DT 40404 3766 10 invertebrates invertebrates NNPS 40404 3766 11 were be VBD 40404 3766 12 represented represent VBN 40404 3766 13 in in IN 40404 3766 14 all all DT 40404 3766 15 their -PRON- PRP$ 40404 3766 16 subkingdoms subkingdom NNS 40404 3766 17 by by IN 40404 3766 18 a a DT 40404 3766 19 varied varied JJ 40404 3766 20 fauna fauna NN 40404 3766 21 . . . 40404 3767 1 In in IN 40404 3767 2 the the DT 40404 3767 3 Devonian Devonian NNP 40404 3767 4 , , , 40404 3767 5 fishes fish VBZ 40404 3767 6 -- -- : 40404 3767 7 the the DT 40404 3767 8 lowest low JJS 40404 3767 9 of of IN 40404 3767 10 the the DT 40404 3767 11 vertebrates vertebrate NNS 40404 3767 12 -- -- : 40404 3767 13 became become VBD 40404 3767 14 abundant abundant JJ 40404 3767 15 . . . 40404 3768 1 Amphibians Amphibians NNPS 40404 3768 2 made make VBD 40404 3768 3 their -PRON- PRP$ 40404 3768 4 entry entry NN 40404 3768 5 on on IN 40404 3768 6 the the DT 40404 3768 7 stage stage NN 40404 3768 8 in in IN 40404 3768 9 the the DT 40404 3768 10 Carboniferous Carboniferous NNP 40404 3768 11 , , , 40404 3768 12 and and CC 40404 3768 13 reptiles reptile NNS 40404 3768 14 came come VBD 40404 3768 15 to to TO 40404 3768 16 rule rule VB 40404 3768 17 the the DT 40404 3768 18 world world NN 40404 3768 19 in in IN 40404 3768 20 the the DT 40404 3768 21 Mesozoic Mesozoic NNP 40404 3768 22 . . . 40404 3769 1 Mammals mammal NNS 40404 3769 2 culminated culminate VBD 40404 3769 3 in in IN 40404 3769 4 the the DT 40404 3769 5 Tertiary Tertiary NNP 40404 3769 6 in in IN 40404 3769 7 strange strange JJ 40404 3769 8 forms form NNS 40404 3769 9 which which WDT 40404 3769 10 became become VBD 40404 3769 11 more more RBR 40404 3769 12 and and CC 40404 3769 13 more more RBR 40404 3769 14 like like IN 40404 3769 15 those those DT 40404 3769 16 of of IN 40404 3769 17 the the DT 40404 3769 18 present present NN 40404 3769 19 as as IN 40404 3769 20 the the DT 40404 3769 21 long long JJ 40404 3769 22 ages age NNS 40404 3769 23 of of IN 40404 3769 24 that that DT 40404 3769 25 era era NN 40404 3769 26 rolled roll VBN 40404 3769 27 on on RB 40404 3769 28 ; ; : 40404 3769 29 and and CC 40404 3769 30 latest late JJS 40404 3769 31 of of IN 40404 3769 32 all all DT 40404 3769 33 appeared appear VBD 40404 3769 34 the the DT 40404 3769 35 noblest noble JJS 40404 3769 36 product product NN 40404 3769 37 of of IN 40404 3769 38 the the DT 40404 3769 39 creative creative JJ 40404 3769 40 process process NN 40404 3769 41 , , , 40404 3769 42 man man NN 40404 3769 43 . . . 40404 3770 1 Just just RB 40404 3770 2 as as IN 40404 3770 3 growth growth NN 40404 3770 4 is be VBZ 40404 3770 5 characteristic characteristic JJ 40404 3770 6 of of IN 40404 3770 7 the the DT 40404 3770 8 individual individual JJ 40404 3770 9 life life NN 40404 3770 10 , , , 40404 3770 11 so so RB 40404 3770 12 gradual gradual JJ 40404 3770 13 , , , 40404 3770 14 progressive progressive JJ 40404 3770 15 change change NN 40404 3770 16 , , , 40404 3770 17 or or CC 40404 3770 18 evolution evolution NN 40404 3770 19 , , , 40404 3770 20 has have VBZ 40404 3770 21 characterized characterize VBN 40404 3770 22 the the DT 40404 3770 23 history history NN 40404 3770 24 of of IN 40404 3770 25 life life NN 40404 3770 26 upon upon IN 40404 3770 27 the the DT 40404 3770 28 planet planet NN 40404 3770 29 . . . 40404 3771 1 The the DT 40404 3771 2 evolution evolution NN 40404 3771 3 of of IN 40404 3771 4 the the DT 40404 3771 5 organic organic JJ 40404 3771 6 kingdom kingdom NN 40404 3771 7 from from IN 40404 3771 8 its -PRON- PRP$ 40404 3771 9 primitive primitive JJ 40404 3771 10 germinal germinal JJ 40404 3771 11 forms form NNS 40404 3771 12 to to IN 40404 3771 13 the the DT 40404 3771 14 complex complex JJ 40404 3771 15 and and CC 40404 3771 16 highly highly RB 40404 3771 17 organized organize VBN 40404 3771 18 fauna fauna NNS 40404 3771 19 - - HYPH 40404 3771 20 flora flora NNS 40404 3771 21 of of IN 40404 3771 22 to to IN 40404 3771 23 - - HYPH 40404 3771 24 day day NN 40404 3771 25 may may MD 40404 3771 26 be be VB 40404 3771 27 compared compare VBN 40404 3771 28 to to IN 40404 3771 29 the the DT 40404 3771 30 growth growth NN 40404 3771 31 of of IN 40404 3771 32 some some DT 40404 3771 33 noble noble JJ 40404 3771 34 oak oak NN 40404 3771 35 as as IN 40404 3771 36 it -PRON- PRP 40404 3771 37 rises rise VBZ 40404 3771 38 from from IN 40404 3771 39 the the DT 40404 3771 40 acorn acorn NN 40404 3771 41 , , , 40404 3771 42 spreading spread VBG 40404 3771 43 loftier lofty JJR 40404 3771 44 and and CC 40404 3771 45 more more RBR 40404 3771 46 widely widely RB 40404 3771 47 extended extended JJ 40404 3771 48 branches branch NNS 40404 3771 49 as as IN 40404 3771 50 it -PRON- PRP 40404 3771 51 grows grow VBZ 40404 3771 52 . . . 40404 3772 1 7 7 LS 40404 3772 2 . . . 40404 3773 1 While while IN 40404 3773 2 higher high JJR 40404 3773 3 and and CC 40404 3773 4 still still RB 40404 3773 5 higher high JJR 40404 3773 6 types type NNS 40404 3773 7 have have VBP 40404 3773 8 continually continually RB 40404 3773 9 been be VBN 40404 3773 10 evolved evolve VBN 40404 3773 11 , , , 40404 3773 12 until until IN 40404 3773 13 man man NN 40404 3773 14 , , , 40404 3773 15 the the DT 40404 3773 16 highest high JJS 40404 3773 17 of of IN 40404 3773 18 all all DT 40404 3773 19 , , , 40404 3773 20 appeared appear VBD 40404 3773 21 , , , 40404 3773 22 _ _ NNP 40404 3773 23 the the DT 40404 3773 24 lower low JJR 40404 3773 25 and and CC 40404 3773 26 earlier early JJR 40404 3773 27 types type NNS 40404 3773 28 have have VBP 40404 3773 29 generally generally RB 40404 3773 30 persisted persist VBN 40404 3773 31 _ _ NNP 40404 3773 32 . . . 40404 3774 1 Some some DT 40404 3774 2 which which WDT 40404 3774 3 reached reach VBD 40404 3774 4 their -PRON- PRP$ 40404 3774 5 culmination culmination NN 40404 3774 6 early early RB 40404 3774 7 in in IN 40404 3774 8 the the DT 40404 3774 9 history history NN 40404 3774 10 of of IN 40404 3774 11 the the DT 40404 3774 12 earth earth NN 40404 3774 13 have have VBP 40404 3774 14 since since IN 40404 3774 15 changed change VBN 40404 3774 16 only only RB 40404 3774 17 in in IN 40404 3774 18 slight slight JJ 40404 3774 19 adjustments adjustment NNS 40404 3774 20 to to IN 40404 3774 21 a a DT 40404 3774 22 changing change VBG 40404 3774 23 environment environment NN 40404 3774 24 . . . 40404 3775 1 Thus thus RB 40404 3775 2 the the DT 40404 3775 3 brachiopods brachiopod NNS 40404 3775 4 , , , 40404 3775 5 a a DT 40404 3775 6 type type NN 40404 3775 7 of of IN 40404 3775 8 shellfish shellfish NN 40404 3775 9 , , , 40404 3775 10 have have VBP 40404 3775 11 made make VBN 40404 3775 12 no no DT 40404 3775 13 progress progress NN 40404 3775 14 since since IN 40404 3775 15 the the DT 40404 3775 16 Paleozoic Paleozoic NNP 40404 3775 17 , , , 40404 3775 18 and and CC 40404 3775 19 some some DT 40404 3775 20 of of IN 40404 3775 21 their -PRON- PRP$ 40404 3775 22 earliest early JJS 40404 3775 23 known know VBN 40404 3775 24 genera genera NN 40404 3775 25 are be VBP 40404 3775 26 represented represent VBN 40404 3775 27 by by IN 40404 3775 28 living live VBG 40404 3775 29 forms form NNS 40404 3775 30 hardly hardly RB 40404 3775 31 to to TO 40404 3775 32 be be VB 40404 3775 33 distinguished distinguish VBN 40404 3775 34 from from IN 40404 3775 35 their -PRON- PRP$ 40404 3775 36 ancient ancient JJ 40404 3775 37 ancestors ancestor NNS 40404 3775 38 . . . 40404 3776 1 The the DT 40404 3776 2 lowest low JJS 40404 3776 3 and and CC 40404 3776 4 earliest early JJS 40404 3776 5 branches branch NNS 40404 3776 6 of of IN 40404 3776 7 the the DT 40404 3776 8 tree tree NN 40404 3776 9 of of IN 40404 3776 10 life life NN 40404 3776 11 have have VBP 40404 3776 12 risen rise VBN 40404 3776 13 to to IN 40404 3776 14 no no DT 40404 3776 15 higher high JJR 40404 3776 16 levels level NNS 40404 3776 17 since since IN 40404 3776 18 they -PRON- PRP 40404 3776 19 reached reach VBD 40404 3776 20 their -PRON- PRP$ 40404 3776 21 climax climax NN 40404 3776 22 of of IN 40404 3776 23 development development NN 40404 3776 24 long long RB 40404 3776 25 ago ago RB 40404 3776 26 . . . 40404 3777 1 8 8 LS 40404 3777 2 . . . 40404 3778 1 A a DT 40404 3778 2 strange strange JJ 40404 3778 3 parallel parallel NN 40404 3778 4 has have VBZ 40404 3778 5 been be VBN 40404 3778 6 found find VBN 40404 3778 7 to to TO 40404 3778 8 exist exist VB 40404 3778 9 between between IN 40404 3778 10 the the DT 40404 3778 11 evolution evolution NN 40404 3778 12 of of IN 40404 3778 13 organisms organism NNS 40404 3778 14 and and CC 40404 3778 15 the the DT 40404 3778 16 development development NN 40404 3778 17 of of IN 40404 3778 18 the the DT 40404 3778 19 individual individual NN 40404 3778 20 . . . 40404 3779 1 In in IN 40404 3779 2 the the DT 40404 3779 3 embryonic embryonic JJ 40404 3779 4 stages stage NNS 40404 3779 5 of of IN 40404 3779 6 its -PRON- PRP$ 40404 3779 7 growth growth NN 40404 3779 8 the the DT 40404 3779 9 individual individual NN 40404 3779 10 passes pass VBZ 40404 3779 11 swiftly swiftly RB 40404 3779 12 through through IN 40404 3779 13 the the DT 40404 3779 14 successive successive JJ 40404 3779 15 stages stage NNS 40404 3779 16 through through IN 40404 3779 17 which which WDT 40404 3779 18 its -PRON- PRP$ 40404 3779 19 ancestors ancestor NNS 40404 3779 20 evolved evolve VBD 40404 3779 21 during during IN 40404 3779 22 the the DT 40404 3779 23 millions million NNS 40404 3779 24 of of IN 40404 3779 25 years year NNS 40404 3779 26 of of IN 40404 3779 27 geologic geologic NN 40404 3779 28 time time NN 40404 3779 29 . . . 40404 3780 1 _ _ NNP 40404 3780 2 The the DT 40404 3780 3 development development NN 40404 3780 4 of of IN 40404 3780 5 the the DT 40404 3780 6 individual individual NN 40404 3780 7 recapitulates recapitulate VBZ 40404 3780 8 the the DT 40404 3780 9 evolution evolution NN 40404 3780 10 of of IN 40404 3780 11 the the DT 40404 3780 12 race race NN 40404 3780 13 . . . 40404 3780 14 _ _ NNP 40404 3780 15 * * NFP 40404 3780 16 * * NFP 40404 3780 17 * * NFP 40404 3780 18 * * NFP 40404 3780 19 * * NFP 40404 3780 20 The the DT 40404 3780 21 frog frog NN 40404 3780 22 is be VBZ 40404 3780 23 a a DT 40404 3780 24 typical typical JJ 40404 3780 25 amphibian amphibian NN 40404 3780 26 . . . 40404 3781 1 As as IN 40404 3781 2 a a DT 40404 3781 3 tadpole tadpole NN 40404 3781 4 it -PRON- PRP 40404 3781 5 passes pass VBZ 40404 3781 6 through through IN 40404 3781 7 a a DT 40404 3781 8 stage stage NN 40404 3781 9 identical identical JJ 40404 3781 10 in in IN 40404 3781 11 several several JJ 40404 3781 12 well well RB 40404 3781 13 - - HYPH 40404 3781 14 known know VBN 40404 3781 15 features feature NNS 40404 3781 16 with with IN 40404 3781 17 the the DT 40404 3781 18 maturity maturity NN 40404 3781 19 of of IN 40404 3781 20 fishes fish NNS 40404 3781 21 ; ; : 40404 3781 22 as as IN 40404 3781 23 , , , 40404 3781 24 for for IN 40404 3781 25 example example NN 40404 3781 26 , , , 40404 3781 27 its -PRON- PRP$ 40404 3781 28 aquatic aquatic JJ 40404 3781 29 life life NN 40404 3781 30 , , , 40404 3781 31 the the DT 40404 3781 32 tail tail NN 40404 3781 33 by by IN 40404 3781 34 which which WDT 40404 3781 35 it -PRON- PRP 40404 3781 36 swims swim VBZ 40404 3781 37 , , , 40404 3781 38 and and CC 40404 3781 39 the the DT 40404 3781 40 gills gill NNS 40404 3781 41 through through IN 40404 3781 42 which which WDT 40404 3781 43 it -PRON- PRP 40404 3781 44 breathes breathe VBZ 40404 3781 45 . . . 40404 3782 1 It -PRON- PRP 40404 3782 2 is be VBZ 40404 3782 3 a a DT 40404 3782 4 fair fair JJ 40404 3782 5 inference inference NN 40404 3782 6 that that IN 40404 3782 7 the the DT 40404 3782 8 tadpole tadpole JJ 40404 3782 9 stage stage NN 40404 3782 10 in in IN 40404 3782 11 the the DT 40404 3782 12 life life NN 40404 3782 13 history history NN 40404 3782 14 of of IN 40404 3782 15 the the DT 40404 3782 16 frog frog NN 40404 3782 17 represents represent VBZ 40404 3782 18 a a DT 40404 3782 19 stage stage NN 40404 3782 20 in in IN 40404 3782 21 the the DT 40404 3782 22 evolution evolution NN 40404 3782 23 of of IN 40404 3782 24 its -PRON- PRP$ 40404 3782 25 kind,--that kind,--that NNP 40404 3782 26 the the DT 40404 3782 27 Amphibia Amphibia NNP 40404 3782 28 are be VBP 40404 3782 29 derived derive VBN 40404 3782 30 from from IN 40404 3782 31 fishlike fishlike JJ 40404 3782 32 ancestral ancestral JJ 40404 3782 33 forms form NNS 40404 3782 34 . . . 40404 3783 1 This this DT 40404 3783 2 inference inference NN 40404 3783 3 is be VBZ 40404 3783 4 amply amply RB 40404 3783 5 confirmed confirm VBN 40404 3783 6 in in IN 40404 3783 7 the the DT 40404 3783 8 geological geological JJ 40404 3783 9 record record NN 40404 3783 10 ; ; : 40404 3783 11 fishes fish NNS 40404 3783 12 appeared appear VBD 40404 3783 13 before before IN 40404 3783 14 Amphibia Amphibia NNP 40404 3783 15 and and CC 40404 3783 16 were be VBD 40404 3783 17 connected connect VBN 40404 3783 18 with with IN 40404 3783 19 them -PRON- PRP 40404 3783 20 by by IN 40404 3783 21 transitional transitional JJ 40404 3783 22 forms form NNS 40404 3783 23 . . . 40404 3784 1 = = NFP 40404 3784 2 The the DT 40404 3784 3 great great JJ 40404 3784 4 length length NN 40404 3784 5 of of IN 40404 3784 6 geologic geologic NN 40404 3784 7 time time NN 40404 3784 8 inferred infer VBN 40404 3784 9 from from IN 40404 3784 10 the the DT 40404 3784 11 slow slow JJ 40404 3784 12 change change NN 40404 3784 13 of of IN 40404 3784 14 species.= species.= NNP 40404 3784 15 Life Life NNP 40404 3784 16 forms form NNS 40404 3784 17 , , , 40404 3784 18 like like IN 40404 3784 19 land land NN 40404 3784 20 forms form NNS 40404 3784 21 , , , 40404 3784 22 are be VBP 40404 3784 23 thus thus RB 40404 3784 24 subject subject JJ 40404 3784 25 to to IN 40404 3784 26 change change NN 40404 3784 27 under under IN 40404 3784 28 the the DT 40404 3784 29 influence influence NN 40404 3784 30 of of IN 40404 3784 31 their -PRON- PRP$ 40404 3784 32 changing change VBG 40404 3784 33 environment environment NN 40404 3784 34 and and CC 40404 3784 35 of of IN 40404 3784 36 forces force NNS 40404 3784 37 acting act VBG 40404 3784 38 from from IN 40404 3784 39 within within IN 40404 3784 40 . . . 40404 3785 1 How how WRB 40404 3785 2 slowly slowly RB 40404 3785 3 they -PRON- PRP 40404 3785 4 change change VBP 40404 3785 5 may may MD 40404 3785 6 be be VB 40404 3785 7 seen see VBN 40404 3785 8 in in IN 40404 3785 9 the the DT 40404 3785 10 apparent apparent JJ 40404 3785 11 stability stability NN 40404 3785 12 of of IN 40404 3785 13 existing exist VBG 40404 3785 14 species specie NNS 40404 3785 15 . . . 40404 3786 1 In in IN 40404 3786 2 the the DT 40404 3786 3 lifetime lifetime NN 40404 3786 4 of of IN 40404 3786 5 the the DT 40404 3786 6 observer observer NN 40404 3786 7 and and CC 40404 3786 8 even even RB 40404 3786 9 in in IN 40404 3786 10 the the DT 40404 3786 11 recorded recorded JJ 40404 3786 12 history history NN 40404 3786 13 of of IN 40404 3786 14 man man NN 40404 3786 15 , , , 40404 3786 16 species specie NNS 40404 3786 17 seem seem VBP 40404 3786 18 as as RB 40404 3786 19 stable stable JJ 40404 3786 20 as as IN 40404 3786 21 the the DT 40404 3786 22 mountain mountain NN 40404 3786 23 and and CC 40404 3786 24 the the DT 40404 3786 25 river river NN 40404 3786 26 . . . 40404 3787 1 But but CC 40404 3787 2 life life NN 40404 3787 3 forms form NNS 40404 3787 4 and and CC 40404 3787 5 land land NN 40404 3787 6 forms form NNS 40404 3787 7 are be VBP 40404 3787 8 alike alike RB 40404 3787 9 variable variable JJ 40404 3787 10 , , , 40404 3787 11 both both CC 40404 3787 12 in in IN 40404 3787 13 nature nature NN 40404 3787 14 and and CC 40404 3787 15 still still RB 40404 3787 16 more more JJR 40404 3787 17 under under IN 40404 3787 18 the the DT 40404 3787 19 shaping shape VBG 40404 3787 20 hand hand NN 40404 3787 21 of of IN 40404 3787 22 man man NN 40404 3787 23 . . . 40404 3788 1 As as IN 40404 3788 2 man man NN 40404 3788 3 has have VBZ 40404 3788 4 modified modify VBN 40404 3788 5 the the DT 40404 3788 6 face face NN 40404 3788 7 of of IN 40404 3788 8 the the DT 40404 3788 9 earth earth NN 40404 3788 10 with with IN 40404 3788 11 his -PRON- PRP$ 40404 3788 12 great great JJ 40404 3788 13 engineering engineering NN 40404 3788 14 works work NNS 40404 3788 15 , , , 40404 3788 16 so so RB 40404 3788 17 he -PRON- PRP 40404 3788 18 has have VBZ 40404 3788 19 produced produce VBN 40404 3788 20 widely widely RB 40404 3788 21 different different JJ 40404 3788 22 varieties variety NNS 40404 3788 23 of of IN 40404 3788 24 many many JJ 40404 3788 25 kinds kind NNS 40404 3788 26 of of IN 40404 3788 27 domesticated domesticate VBN 40404 3788 28 plants plant NNS 40404 3788 29 and and CC 40404 3788 30 animals animal NNS 40404 3788 31 , , , 40404 3788 32 such such JJ 40404 3788 33 as as IN 40404 3788 34 the the DT 40404 3788 35 varieties variety NNS 40404 3788 36 of of IN 40404 3788 37 the the DT 40404 3788 38 dog dog NN 40404 3788 39 and and CC 40404 3788 40 the the DT 40404 3788 41 horse horse NN 40404 3788 42 , , , 40404 3788 43 the the DT 40404 3788 44 apple apple NN 40404 3788 45 and and CC 40404 3788 46 the the DT 40404 3788 47 rose rose NN 40404 3788 48 , , , 40404 3788 49 which which WDT 40404 3788 50 may may MD 40404 3788 51 be be VB 40404 3788 52 regarded regard VBN 40404 3788 53 in in IN 40404 3788 54 some some DT 40404 3788 55 respects respect NNS 40404 3788 56 as as IN 40404 3788 57 new new JJ 40404 3788 58 species specie NNS 40404 3788 59 in in IN 40404 3788 60 the the DT 40404 3788 61 making making NN 40404 3788 62 . . . 40404 3789 1 We -PRON- PRP 40404 3789 2 have have VBP 40404 3789 3 assumed assume VBN 40404 3789 4 that that IN 40404 3789 5 land land NN 40404 3789 6 forms form NNS 40404 3789 7 have have VBP 40404 3789 8 changed change VBN 40404 3789 9 in in IN 40404 3789 10 the the DT 40404 3789 11 past past NN 40404 3789 12 under under IN 40404 3789 13 the the DT 40404 3789 14 influence influence NN 40404 3789 15 of of IN 40404 3789 16 forces force NNS 40404 3789 17 now now RB 40404 3789 18 in in IN 40404 3789 19 operation operation NN 40404 3789 20 . . . 40404 3790 1 Assuming assume VBG 40404 3790 2 also also RB 40404 3790 3 that that IN 40404 3790 4 life life NN 40404 3790 5 forms form NNS 40404 3790 6 have have VBP 40404 3790 7 always always RB 40404 3790 8 changed change VBN 40404 3790 9 as as IN 40404 3790 10 they -PRON- PRP 40404 3790 11 are be VBP 40404 3790 12 changing change VBG 40404 3790 13 at at IN 40404 3790 14 present present JJ 40404 3790 15 , , , 40404 3790 16 we -PRON- PRP 40404 3790 17 come come VBP 40404 3790 18 to to TO 40404 3790 19 realize realize VB 40404 3790 20 something something NN 40404 3790 21 of of IN 40404 3790 22 the the DT 40404 3790 23 immensity immensity NN 40404 3790 24 of of IN 40404 3790 25 geologic geologic JJ 40404 3790 26 time time NN 40404 3790 27 required require VBN 40404 3790 28 for for IN 40404 3790 29 the the DT 40404 3790 30 evolution evolution NN 40404 3790 31 of of IN 40404 3790 32 life life NN 40404 3790 33 from from IN 40404 3790 34 its -PRON- PRP$ 40404 3790 35 earliest early JJS 40404 3790 36 lowly lowly JJ 40404 3790 37 forms form NNS 40404 3790 38 up up RP 40404 3790 39 to to IN 40404 3790 40 man man NN 40404 3790 41 . . . 40404 3791 1 It -PRON- PRP 40404 3791 2 is be VBZ 40404 3791 3 because because IN 40404 3791 4 the the DT 40404 3791 5 onward onward JJ 40404 3791 6 march march NN 40404 3791 7 of of IN 40404 3791 8 life life NN 40404 3791 9 has have VBZ 40404 3791 10 taken take VBN 40404 3791 11 the the DT 40404 3791 12 same same JJ 40404 3791 13 general general JJ 40404 3791 14 course course NN 40404 3791 15 the the DT 40404 3791 16 world world NN 40404 3791 17 over over IN 40404 3791 18 that that IN 40404 3791 19 we -PRON- PRP 40404 3791 20 are be VBP 40404 3791 21 able able JJ 40404 3791 22 to to TO 40404 3791 23 use use VB 40404 3791 24 it -PRON- PRP 40404 3791 25 as as IN 40404 3791 26 a a DT 40404 3791 27 _ _ NNP 40404 3791 28 universal universal JJ 40404 3791 29 time time NN 40404 3791 30 scale scale NN 40404 3791 31 _ _ NNP 40404 3791 32 and and CC 40404 3791 33 divide divide VB 40404 3791 34 geologic geologic JJ 40404 3791 35 time time NN 40404 3791 36 into into IN 40404 3791 37 ages age NNS 40404 3791 38 and and CC 40404 3791 39 minor minor JJ 40404 3791 40 subdivisions subdivision NNS 40404 3791 41 according accord VBG 40404 3791 42 to to IN 40404 3791 43 the the DT 40404 3791 44 ruling rule VBG 40404 3791 45 or or CC 40404 3791 46 characteristic characteristic JJ 40404 3791 47 organisms organism NNS 40404 3791 48 then then RB 40404 3791 49 living live VBG 40404 3791 50 on on IN 40404 3791 51 the the DT 40404 3791 52 earth earth NN 40404 3791 53 . . . 40404 3792 1 Thus thus RB 40404 3792 2 , , , 40404 3792 3 since since IN 40404 3792 4 vertebrates vertebrate NNS 40404 3792 5 appeared appear VBD 40404 3792 6 , , , 40404 3792 7 we -PRON- PRP 40404 3792 8 have have VBP 40404 3792 9 in in IN 40404 3792 10 succession succession NN 40404 3792 11 the the DT 40404 3792 12 Age Age NNP 40404 3792 13 of of IN 40404 3792 14 Fishes Fishes NNP 40404 3792 15 , , , 40404 3792 16 the the DT 40404 3792 17 Age Age NNP 40404 3792 18 of of IN 40404 3792 19 Amphibians Amphibians NNPS 40404 3792 20 , , , 40404 3792 21 the the DT 40404 3792 22 Age Age NNP 40404 3792 23 of of IN 40404 3792 24 Reptiles Reptiles NNP 40404 3792 25 , , , 40404 3792 26 and and CC 40404 3792 27 the the DT 40404 3792 28 Age Age NNP 40404 3792 29 of of IN 40404 3792 30 Mammals Mammals NNPS 40404 3792 31 . . . 40404 3793 1 The the DT 40404 3793 2 chart chart NN 40404 3793 3 given give VBN 40404 3793 4 on on IN 40404 3793 5 page page NN 40404 3793 6 295 295 CD 40404 3793 7 is be VBZ 40404 3793 8 thus thus RB 40404 3793 9 based base VBN 40404 3793 10 on on IN 40404 3793 11 the the DT 40404 3793 12 law law NN 40404 3793 13 of of IN 40404 3793 14 superposition superposition NN 40404 3793 15 and and CC 40404 3793 16 the the DT 40404 3793 17 law law NN 40404 3793 18 of of IN 40404 3793 19 the the DT 40404 3793 20 evolution evolution NN 40404 3793 21 of of IN 40404 3793 22 organisms organism NNS 40404 3793 23 . . . 40404 3794 1 The the DT 40404 3794 2 first first JJ 40404 3794 3 law law NN 40404 3794 4 gives give VBZ 40404 3794 5 the the DT 40404 3794 6 succession succession NN 40404 3794 7 of of IN 40404 3794 8 the the DT 40404 3794 9 formations formation NNS 40404 3794 10 in in IN 40404 3794 11 local local JJ 40404 3794 12 areas area NNS 40404 3794 13 . . . 40404 3795 1 The the DT 40404 3795 2 fossils fossil NNS 40404 3795 3 which which WDT 40404 3795 4 they -PRON- PRP 40404 3795 5 contain contain VBP 40404 3795 6 demonstrate demonstrate VBP 40404 3795 7 the the DT 40404 3795 8 law law NN 40404 3795 9 of of IN 40404 3795 10 the the DT 40404 3795 11 progressive progressive JJ 40404 3795 12 appearance appearance NN 40404 3795 13 of of IN 40404 3795 14 organisms organism NNS 40404 3795 15 , , , 40404 3795 16 and and CC 40404 3795 17 by by IN 40404 3795 18 means mean NNS 40404 3795 19 of of IN 40404 3795 20 this this DT 40404 3795 21 law law NN 40404 3795 22 the the DT 40404 3795 23 formations formation NNS 40404 3795 24 of of IN 40404 3795 25 different different JJ 40404 3795 26 countries country NNS 40404 3795 27 are be VBP 40404 3795 28 correlated correlate VBN 40404 3795 29 and and CC 40404 3795 30 set set VBN 40404 3795 31 each each DT 40404 3795 32 in in IN 40404 3795 33 its -PRON- PRP$ 40404 3795 34 place place NN 40404 3795 35 in in IN 40404 3795 36 a a DT 40404 3795 37 universal universal JJ 40404 3795 38 time time NN 40404 3795 39 scale scale NN 40404 3795 40 and and CC 40404 3795 41 grouped group VBN 40404 3795 42 together together RB 40404 3795 43 according accord VBG 40404 3795 44 to to IN 40404 3795 45 the the DT 40404 3795 46 affinities affinity NNS 40404 3795 47 of of IN 40404 3795 48 their -PRON- PRP$ 40404 3795 49 imbedded imbed VBN 40404 3795 50 organic organic JJ 40404 3795 51 remains remain NNS 40404 3795 52 . . . 40404 3796 1 = = NFP 40404 3796 2 Geologic geologic NN 40404 3796 3 time time NN 40404 3796 4 divisions division NNS 40404 3796 5 compared compare VBN 40404 3796 6 with with IN 40404 3796 7 those those DT 40404 3796 8 of of IN 40404 3796 9 human human JJ 40404 3796 10 history.= history.= NNS 40404 3796 11 We -PRON- PRP 40404 3796 12 may may MD 40404 3796 13 compare compare VB 40404 3796 14 the the DT 40404 3796 15 division division NN 40404 3796 16 of of IN 40404 3796 17 geologic geologic JJ 40404 3796 18 time time NN 40404 3796 19 into into IN 40404 3796 20 eras era NNS 40404 3796 21 , , , 40404 3796 22 periods period NNS 40404 3796 23 , , , 40404 3796 24 and and CC 40404 3796 25 other other JJ 40404 3796 26 divisions division NNS 40404 3796 27 according accord VBG 40404 3796 28 to to IN 40404 3796 29 the the DT 40404 3796 30 dominant dominant JJ 40404 3796 31 life life NN 40404 3796 32 of of IN 40404 3796 33 the the DT 40404 3796 34 time time NN 40404 3796 35 , , , 40404 3796 36 to to IN 40404 3796 37 the the DT 40404 3796 38 ill ill RB 40404 3796 39 - - HYPH 40404 3796 40 defined define VBN 40404 3796 41 ages age NNS 40404 3796 42 into into IN 40404 3796 43 which which WDT 40404 3796 44 human human JJ 40404 3796 45 history history NN 40404 3796 46 is be VBZ 40404 3796 47 divided divide VBN 40404 3796 48 according accord VBG 40404 3796 49 to to IN 40404 3796 50 the the DT 40404 3796 51 dominance dominance NN 40404 3796 52 of of IN 40404 3796 53 some some DT 40404 3796 54 nation nation NN 40404 3796 55 , , , 40404 3796 56 ruler ruler NN 40404 3796 57 , , , 40404 3796 58 or or CC 40404 3796 59 other other JJ 40404 3796 60 characteristic characteristic JJ 40404 3796 61 feature feature NN 40404 3796 62 . . . 40404 3797 1 Thus thus RB 40404 3797 2 we -PRON- PRP 40404 3797 3 speak speak VBP 40404 3797 4 of of IN 40404 3797 5 the the DT 40404 3797 6 _ _ NNP 40404 3797 7 Dark Dark NNP 40404 3797 8 Ages Ages NNPS 40404 3797 9 _ _ NNP 40404 3797 10 , , , 40404 3797 11 the the DT 40404 3797 12 _ _ NNP 40404 3797 13 Age Age NNP 40404 3797 14 of of IN 40404 3797 15 Elizabeth Elizabeth NNP 40404 3797 16 _ _ NNP 40404 3797 17 , , , 40404 3797 18 and and CC 40404 3797 19 the the DT 40404 3797 20 _ _ NNP 40404 3797 21 Age Age NNP 40404 3797 22 of of IN 40404 3797 23 Electricity Electricity NNP 40404 3797 24 _ _ NNP 40404 3797 25 . . . 40404 3798 1 These these DT 40404 3798 2 crude crude JJ 40404 3798 3 divisions division NNS 40404 3798 4 would would MD 40404 3798 5 be be VB 40404 3798 6 of of IN 40404 3798 7 much much JJ 40404 3798 8 value value NN 40404 3798 9 if if IN 40404 3798 10 , , , 40404 3798 11 as as IN 40404 3798 12 in in IN 40404 3798 13 the the DT 40404 3798 14 case case NN 40404 3798 15 of of IN 40404 3798 16 geologic geologic NN 40404 3798 17 time time NN 40404 3798 18 , , , 40404 3798 19 we -PRON- PRP 40404 3798 20 had have VBD 40404 3798 21 no no DT 40404 3798 22 exact exact JJ 40404 3798 23 reckoning reckoning NN 40404 3798 24 of of IN 40404 3798 25 human human JJ 40404 3798 26 history history NN 40404 3798 27 by by IN 40404 3798 28 years year NNS 40404 3798 29 . . . 40404 3799 1 And and CC 40404 3799 2 as as IN 40404 3799 3 the the DT 40404 3799 4 course course NN 40404 3799 5 of of IN 40404 3799 6 human human JJ 40404 3799 7 history history NN 40404 3799 8 has have VBZ 40404 3799 9 flowed flow VBN 40404 3799 10 in in IN 40404 3799 11 an an DT 40404 3799 12 unbroken unbroken JJ 40404 3799 13 stream stream NN 40404 3799 14 along along IN 40404 3799 15 quiet quiet JJ 40404 3799 16 reaches reach NNS 40404 3799 17 of of IN 40404 3799 18 slow slow JJ 40404 3799 19 change change NN 40404 3799 20 and and CC 40404 3799 21 through through IN 40404 3799 22 periods period NNS 40404 3799 23 of of IN 40404 3799 24 rapid rapid JJ 40404 3799 25 change change NN 40404 3799 26 and and CC 40404 3799 27 revolution revolution NN 40404 3799 28 , , , 40404 3799 29 so so CC 40404 3799 30 with with IN 40404 3799 31 the the DT 40404 3799 32 course course NN 40404 3799 33 of of IN 40404 3799 34 geologic geologic JJ 40404 3799 35 history history NN 40404 3799 36 . . . 40404 3800 1 Periods period NNS 40404 3800 2 of of IN 40404 3800 3 quiescence quiescence NN 40404 3800 4 , , , 40404 3800 5 in in IN 40404 3800 6 which which WDT 40404 3800 7 revolutionary revolutionary JJ 40404 3800 8 forces force NNS 40404 3800 9 are be VBP 40404 3800 10 perhaps perhaps RB 40404 3800 11 gathering gather VBG 40404 3800 12 head head NN 40404 3800 13 , , , 40404 3800 14 alternate alternate JJ 40404 3800 15 with with IN 40404 3800 16 periods period NNS 40404 3800 17 of of IN 40404 3800 18 comparatively comparatively RB 40404 3800 19 rapid rapid JJ 40404 3800 20 change change NN 40404 3800 21 in in IN 40404 3800 22 physical physical JJ 40404 3800 23 geography geography NN 40404 3800 24 and and CC 40404 3800 25 in in IN 40404 3800 26 organisms organism NNS 40404 3800 27 , , , 40404 3800 28 when when WRB 40404 3800 29 new new JJ 40404 3800 30 and and CC 40404 3800 31 higher high JJR 40404 3800 32 forms form NNS 40404 3800 33 appear appear VBP 40404 3800 34 which which WDT 40404 3800 35 serve serve VBP 40404 3800 36 to to TO 40404 3800 37 draw draw VB 40404 3800 38 the the DT 40404 3800 39 boundary boundary JJ 40404 3800 40 line line NN 40404 3800 41 of of IN 40404 3800 42 new new JJ 40404 3800 43 epochs epoch NNS 40404 3800 44 . . . 40404 3801 1 Nevertheless nevertheless RB 40404 3801 2 , , , 40404 3801 3 geological geological JJ 40404 3801 4 history history NN 40404 3801 5 is be VBZ 40404 3801 6 a a DT 40404 3801 7 continuous continuous JJ 40404 3801 8 progress progress NN 40404 3801 9 ; ; : 40404 3801 10 its -PRON- PRP$ 40404 3801 11 periods period NNS 40404 3801 12 and and CC 40404 3801 13 epochs epoch NNS 40404 3801 14 shade shade NN 40404 3801 15 into into IN 40404 3801 16 one one CD 40404 3801 17 another another DT 40404 3801 18 by by IN 40404 3801 19 imperceptible imperceptible JJ 40404 3801 20 gradations gradation NNS 40404 3801 21 , , , 40404 3801 22 and and CC 40404 3801 23 all all PDT 40404 3801 24 our -PRON- PRP$ 40404 3801 25 subdivisions subdivision NNS 40404 3801 26 must must MD 40404 3801 27 needs needs VB 40404 3801 28 be be VB 40404 3801 29 vague vague JJ 40404 3801 30 and and CC 40404 3801 31 more more JJR 40404 3801 32 or or CC 40404 3801 33 less less RBR 40404 3801 34 arbitrary arbitrary JJ 40404 3801 35 . . . 40404 3802 1 = = NFP 40404 3802 2 How how WRB 40404 3802 3 fossils fossil NNS 40404 3802 4 tell tell VBP 40404 3802 5 of of IN 40404 3802 6 the the DT 40404 3802 7 geography geography NN 40404 3802 8 of of IN 40404 3802 9 the the DT 40404 3802 10 past.= past.= NNP 40404 3802 11 Fossils Fossils NNP 40404 3802 12 are be VBP 40404 3802 13 used use VBN 40404 3802 14 not not RB 40404 3802 15 only only RB 40404 3802 16 as as IN 40404 3802 17 a a DT 40404 3802 18 record record NN 40404 3802 19 of of IN 40404 3802 20 the the DT 40404 3802 21 development development NN 40404 3802 22 of of IN 40404 3802 23 life life NN 40404 3802 24 upon upon IN 40404 3802 25 the the DT 40404 3802 26 earth earth NN 40404 3802 27 , , , 40404 3802 28 but but CC 40404 3802 29 also also RB 40404 3802 30 in in IN 40404 3802 31 testimony testimony NN 40404 3802 32 to to IN 40404 3802 33 the the DT 40404 3802 34 physical physical JJ 40404 3802 35 geography geography NN 40404 3802 36 of of IN 40404 3802 37 past past JJ 40404 3802 38 epochs epoch NNS 40404 3802 39 . . . 40404 3803 1 They -PRON- PRP 40404 3803 2 indicate indicate VBP 40404 3803 3 whether whether IN 40404 3803 4 in in IN 40404 3803 5 any any DT 40404 3803 6 region region NN 40404 3803 7 the the DT 40404 3803 8 climate climate NN 40404 3803 9 was be VBD 40404 3803 10 tropical tropical JJ 40404 3803 11 , , , 40404 3803 12 temperate temperate VB 40404 3803 13 , , , 40404 3803 14 or or CC 40404 3803 15 arctic arctic NNP 40404 3803 16 . . . 40404 3804 1 Since since IN 40404 3804 2 species specie NNS 40404 3804 3 spread spread VBP 40404 3804 4 slowly slowly RB 40404 3804 5 from from IN 40404 3804 6 some some DT 40404 3804 7 center center NN 40404 3804 8 of of IN 40404 3804 9 dispersion dispersion NN 40404 3804 10 where where WRB 40404 3804 11 they -PRON- PRP 40404 3804 12 originate originate VBP 40404 3804 13 until until IN 40404 3804 14 some some DT 40404 3804 15 barrier barrier NN 40404 3804 16 limits limit VBZ 40404 3804 17 their -PRON- PRP$ 40404 3804 18 migration migration NN 40404 3804 19 farther farther RB 40404 3804 20 , , , 40404 3804 21 the the DT 40404 3804 22 occurrence occurrence NN 40404 3804 23 of of IN 40404 3804 24 the the DT 40404 3804 25 same same JJ 40404 3804 26 species specie NNS 40404 3804 27 in in IN 40404 3804 28 rocks rock NNS 40404 3804 29 of of IN 40404 3804 30 the the DT 40404 3804 31 same same JJ 40404 3804 32 system system NN 40404 3804 33 in in IN 40404 3804 34 different different JJ 40404 3804 35 countries country NNS 40404 3804 36 implies imply VBZ 40404 3804 37 the the DT 40404 3804 38 absence absence NN 40404 3804 39 of of IN 40404 3804 40 such such JJ 40404 3804 41 barriers barrier NNS 40404 3804 42 at at IN 40404 3804 43 the the DT 40404 3804 44 period period NN 40404 3804 45 . . . 40404 3805 1 Thus thus RB 40404 3805 2 in in IN 40404 3805 3 the the DT 40404 3805 4 collection collection NN 40404 3805 5 of of IN 40404 3805 6 antarctic antarctic JJ 40404 3805 7 fossils fossil NNS 40404 3805 8 referred refer VBD 40404 3805 9 to to IN 40404 3805 10 on on IN 40404 3805 11 page page NN 40404 3805 12 294 294 CD 40404 3805 13 there there EX 40404 3805 14 were be VBD 40404 3805 15 shallow shallow JJ 40404 3805 16 - - HYPH 40404 3805 17 water water NN 40404 3805 18 marine marine NN 40404 3805 19 shells shell NNS 40404 3805 20 identical identical JJ 40404 3805 21 in in IN 40404 3805 22 species specie NNS 40404 3805 23 with with IN 40404 3805 24 Mesozoic Mesozoic NNP 40404 3805 25 shells shell NNS 40404 3805 26 found find VBN 40404 3805 27 in in IN 40404 3805 28 India India NNP 40404 3805 29 and and CC 40404 3805 30 in in IN 40404 3805 31 the the DT 40404 3805 32 southern southern JJ 40404 3805 33 extremity extremity NN 40404 3805 34 of of IN 40404 3805 35 South South NNP 40404 3805 36 America America NNP 40404 3805 37 . . . 40404 3806 1 Since since IN 40404 3806 2 such such JJ 40404 3806 3 organisms organism NNS 40404 3806 4 are be VBP 40404 3806 5 not not RB 40404 3806 6 distributed distribute VBN 40404 3806 7 by by IN 40404 3806 8 the the DT 40404 3806 9 currents current NNS 40404 3806 10 of of IN 40404 3806 11 the the DT 40404 3806 12 deep deep JJ 40404 3806 13 sea sea NN 40404 3806 14 and and CC 40404 3806 15 can can MD 40404 3806 16 not not RB 40404 3806 17 migrate migrate VB 40404 3806 18 along along IN 40404 3806 19 its -PRON- PRP$ 40404 3806 20 bottom bottom NN 40404 3806 21 , , , 40404 3806 22 we -PRON- PRP 40404 3806 23 infer infer VBP 40404 3806 24 a a DT 40404 3806 25 shallow shallow JJ 40404 3806 26 - - HYPH 40404 3806 27 water water NN 40404 3806 28 connection connection NN 40404 3806 29 in in IN 40404 3806 30 Mesozoic Mesozoic NNP 40404 3806 31 times time NNS 40404 3806 32 between between IN 40404 3806 33 India India NNP 40404 3806 34 , , , 40404 3806 35 South South NNP 40404 3806 36 America America NNP 40404 3806 37 , , , 40404 3806 38 and and CC 40404 3806 39 the the DT 40404 3806 40 antarctic antarctic JJ 40404 3806 41 region region NN 40404 3806 42 . . . 40404 3807 1 Such such PDT 40404 3807 2 a a DT 40404 3807 3 shallow shallow JJ 40404 3807 4 - - HYPH 40404 3807 5 water water NN 40404 3807 6 connection connection NN 40404 3807 7 would would MD 40404 3807 8 be be VB 40404 3807 9 offered offer VBN 40404 3807 10 along along IN 40404 3807 11 the the DT 40404 3807 12 marginal marginal JJ 40404 3807 13 shelf shelf NN 40404 3807 14 of of IN 40404 3807 15 a a DT 40404 3807 16 continent continent NN 40404 3807 17 uniting unite VBG 40404 3807 18 these these DT 40404 3807 19 now now RB 40404 3807 20 widely widely RB 40404 3807 21 separated separate VBN 40404 3807 22 countries country NNS 40404 3807 23 . . . 40404 3808 1 CHAPTER CHAPTER NNP 40404 3808 2 XV XV NNP 40404 3808 3 THE the DT 40404 3808 4 PRE PRE NNP 40404 3808 5 - - HYPH 40404 3808 6 CAMBRIAN CAMBRIAN NNP 40404 3808 7 SYSTEMS SYSTEMS NNP 40404 3808 8 = = NFP 40404 3808 9 The the DT 40404 3808 10 earth earth NN 40404 3808 11 's 's POS 40404 3808 12 beginnings.= beginnings.= CD 40404 3808 13 The the DT 40404 3808 14 geological geological JJ 40404 3808 15 record record NN 40404 3808 16 does do VBZ 40404 3808 17 not not RB 40404 3808 18 tell tell VB 40404 3808 19 us -PRON- PRP 40404 3808 20 of of IN 40404 3808 21 the the DT 40404 3808 22 beginnings beginning NNS 40404 3808 23 of of IN 40404 3808 24 the the DT 40404 3808 25 earth earth NN 40404 3808 26 . . . 40404 3809 1 The the DT 40404 3809 2 history history NN 40404 3809 3 of of IN 40404 3809 4 the the DT 40404 3809 5 planet planet NN 40404 3809 6 , , , 40404 3809 7 as as IN 40404 3809 8 we -PRON- PRP 40404 3809 9 have have VBP 40404 3809 10 every every DT 40404 3809 11 reason reason NN 40404 3809 12 to to TO 40404 3809 13 believe believe VB 40404 3809 14 , , , 40404 3809 15 stretches stretch VBZ 40404 3809 16 far far RB 40404 3809 17 back back RB 40404 3809 18 beyond beyond IN 40404 3809 19 the the DT 40404 3809 20 period period NN 40404 3809 21 of of IN 40404 3809 22 the the DT 40404 3809 23 oldest old JJS 40404 3809 24 stratified stratified JJ 40404 3809 25 rocks rock NNS 40404 3809 26 , , , 40404 3809 27 and and CC 40404 3809 28 is be VBZ 40404 3809 29 involved involve VBN 40404 3809 30 in in IN 40404 3809 31 the the DT 40404 3809 32 history history NN 40404 3809 33 of of IN 40404 3809 34 the the DT 40404 3809 35 solar solar JJ 40404 3809 36 system system NN 40404 3809 37 and and CC 40404 3809 38 of of IN 40404 3809 39 the the DT 40404 3809 40 nebula,--the nebula,--the NNP 40404 3809 41 cloud cloud NN 40404 3809 42 of of IN 40404 3809 43 glowing glow VBG 40404 3809 44 gases gas NNS 40404 3809 45 or or CC 40404 3809 46 of of IN 40404 3809 47 cosmic cosmic JJ 40404 3809 48 dust,--from dust,--from NNP 40404 3809 49 which which WDT 40404 3809 50 the the DT 40404 3809 51 sun sun NN 40404 3809 52 and and CC 40404 3809 53 planets planet NNS 40404 3809 54 are be VBP 40404 3809 55 believed believe VBN 40404 3809 56 to to TO 40404 3809 57 have have VB 40404 3809 58 been be VBN 40404 3809 59 derived derive VBN 40404 3809 60 . . . 40404 3810 1 = = NFP 40404 3810 2 The the DT 40404 3810 3 nebular nebular JJ 40404 3810 4 hypothesis.= hypothesis.= NN 40404 3810 5 It -PRON- PRP 40404 3810 6 was be VBD 40404 3810 7 long long RB 40404 3810 8 held hold VBN 40404 3810 9 that that IN 40404 3810 10 the the DT 40404 3810 11 earth earth NN 40404 3810 12 began begin VBD 40404 3810 13 as as IN 40404 3810 14 a a DT 40404 3810 15 vaporous vaporous JJ 40404 3810 16 , , , 40404 3810 17 shining shine VBG 40404 3810 18 sphere sphere RB 40404 3810 19 , , , 40404 3810 20 formed form VBN 40404 3810 21 by by IN 40404 3810 22 the the DT 40404 3810 23 gathering gathering NN 40404 3810 24 together together RB 40404 3810 25 of of IN 40404 3810 26 the the DT 40404 3810 27 material material NN 40404 3810 28 of of IN 40404 3810 29 a a DT 40404 3810 30 gaseous gaseous JJ 40404 3810 31 ring ring NN 40404 3810 32 which which WDT 40404 3810 33 had have VBD 40404 3810 34 been be VBN 40404 3810 35 detached detach VBN 40404 3810 36 from from IN 40404 3810 37 a a DT 40404 3810 38 cooling cool VBG 40404 3810 39 and and CC 40404 3810 40 shrinking shrink VBG 40404 3810 41 nebula nebula NN 40404 3810 42 . . . 40404 3811 1 Such such PDT 40404 3811 2 a a DT 40404 3811 3 vaporous vaporous JJ 40404 3811 4 sphere sphere NN 40404 3811 5 would would MD 40404 3811 6 condense condense VB 40404 3811 7 to to IN 40404 3811 8 a a DT 40404 3811 9 liquid liquid JJ 40404 3811 10 fiery fiery NN 40404 3811 11 globe globe NN 40404 3811 12 , , , 40404 3811 13 whose whose WP$ 40404 3811 14 surface surface NN 40404 3811 15 would would MD 40404 3811 16 become become VB 40404 3811 17 cold cold JJ 40404 3811 18 and and CC 40404 3811 19 solid solid JJ 40404 3811 20 , , , 40404 3811 21 while while IN 40404 3811 22 the the DT 40404 3811 23 interior interior NNP 40404 3811 24 would would MD 40404 3811 25 long long RB 40404 3811 26 remain remain VB 40404 3811 27 intensely intensely RB 40404 3811 28 hot hot JJ 40404 3811 29 because because IN 40404 3811 30 of of IN 40404 3811 31 the the DT 40404 3811 32 slow slow JJ 40404 3811 33 conductivity conductivity NN 40404 3811 34 of of IN 40404 3811 35 the the DT 40404 3811 36 crust crust NN 40404 3811 37 . . . 40404 3812 1 Under under IN 40404 3812 2 these these DT 40404 3812 3 conditions condition NNS 40404 3812 4 the the DT 40404 3812 5 primeval primeval NN 40404 3812 6 atmosphere atmosphere NN 40404 3812 7 of of IN 40404 3812 8 the the DT 40404 3812 9 earth earth NN 40404 3812 10 must must MD 40404 3812 11 have have VB 40404 3812 12 contained contain VBN 40404 3812 13 in in IN 40404 3812 14 vapor vapor NN 40404 3812 15 the the DT 40404 3812 16 water water NN 40404 3812 17 now now RB 40404 3812 18 belonging belong VBG 40404 3812 19 to to IN 40404 3812 20 the the DT 40404 3812 21 earth earth NN 40404 3812 22 's 's POS 40404 3812 23 crust crust NN 40404 3812 24 and and CC 40404 3812 25 surface surface NN 40404 3812 26 . . . 40404 3813 1 It -PRON- PRP 40404 3813 2 also also RB 40404 3813 3 held hold VBD 40404 3813 4 all all PDT 40404 3813 5 the the DT 40404 3813 6 oxygen oxygen NN 40404 3813 7 since since IN 40404 3813 8 locked lock VBN 40404 3813 9 up up RP 40404 3813 10 in in IN 40404 3813 11 rocks rock NNS 40404 3813 12 by by IN 40404 3813 13 their -PRON- PRP$ 40404 3813 14 oxidation oxidation NN 40404 3813 15 , , , 40404 3813 16 and and CC 40404 3813 17 all all PDT 40404 3813 18 the the DT 40404 3813 19 carbon carbon NN 40404 3813 20 dioxide dioxide NN 40404 3813 21 which which WDT 40404 3813 22 has have VBZ 40404 3813 23 since since RB 40404 3813 24 been be VBN 40404 3813 25 laid lay VBN 40404 3813 26 away away RP 40404 3813 27 in in IN 40404 3813 28 limestones limestone NNS 40404 3813 29 , , , 40404 3813 30 besides besides IN 40404 3813 31 that that DT 40404 3813 32 corresponding correspond VBG 40404 3813 33 to to IN 40404 3813 34 the the DT 40404 3813 35 carbon carbon NN 40404 3813 36 of of IN 40404 3813 37 carbonaceous carbonaceous JJ 40404 3813 38 deposits deposit NNS 40404 3813 39 , , , 40404 3813 40 such such JJ 40404 3813 41 as as IN 40404 3813 42 peat peat NN 40404 3813 43 , , , 40404 3813 44 coal coal NN 40404 3813 45 , , , 40404 3813 46 and and CC 40404 3813 47 petroleum petroleum NN 40404 3813 48 . . . 40404 3814 1 On on IN 40404 3814 2 this this DT 40404 3814 3 hypothesis hypothesis NN 40404 3814 4 the the DT 40404 3814 5 original original JJ 40404 3814 6 atmosphere atmosphere NN 40404 3814 7 was be VBD 40404 3814 8 dense dense JJ 40404 3814 9 , , , 40404 3814 10 dark dark JJ 40404 3814 11 , , , 40404 3814 12 and and CC 40404 3814 13 noxious noxious JJ 40404 3814 14 , , , 40404 3814 15 and and CC 40404 3814 16 enormously enormously RB 40404 3814 17 heavier heavy JJR 40404 3814 18 than than IN 40404 3814 19 the the DT 40404 3814 20 atmosphere atmosphere NN 40404 3814 21 at at IN 40404 3814 22 present present NN 40404 3814 23 . . . 40404 3815 1 = = NFP 40404 3815 2 The the DT 40404 3815 3 accretion accretion NN 40404 3815 4 hypothesis.= hypothesis.= VBZ 40404 3815 5 On on IN 40404 3815 6 the the DT 40404 3815 7 other other JJ 40404 3815 8 hand hand NN 40404 3815 9 , , , 40404 3815 10 it -PRON- PRP 40404 3815 11 has have VBZ 40404 3815 12 been be VBN 40404 3815 13 recently recently RB 40404 3815 14 suggested suggest VBN 40404 3815 15 that that IN 40404 3815 16 the the DT 40404 3815 17 earth earth NN 40404 3815 18 may may MD 40404 3815 19 have have VB 40404 3815 20 grown grow VBN 40404 3815 21 to to IN 40404 3815 22 its -PRON- PRP$ 40404 3815 23 present present JJ 40404 3815 24 size size NN 40404 3815 25 by by IN 40404 3815 26 the the DT 40404 3815 27 gradual gradual JJ 40404 3815 28 accretion accretion NN 40404 3815 29 of of IN 40404 3815 30 meteoritic meteoritic JJ 40404 3815 31 masses masse NNS 40404 3815 32 . . . 40404 3816 1 Such such JJ 40404 3816 2 cold cold JJ 40404 3816 3 , , , 40404 3816 4 stony stony JJ 40404 3816 5 bodies body NNS 40404 3816 6 might may MD 40404 3816 7 have have VB 40404 3816 8 come come VBN 40404 3816 9 together together RB 40404 3816 10 at at IN 40404 3816 11 so so RB 40404 3816 12 slow slow VB 40404 3816 13 a a DT 40404 3816 14 rate rate NN 40404 3816 15 that that WDT 40404 3816 16 the the DT 40404 3816 17 heat heat NN 40404 3816 18 caused cause VBN 40404 3816 19 by by IN 40404 3816 20 their -PRON- PRP$ 40404 3816 21 impact impact NN 40404 3816 22 would would MD 40404 3816 23 not not RB 40404 3816 24 raise raise VB 40404 3816 25 sensibly sensibly RB 40404 3816 26 the the DT 40404 3816 27 temperature temperature NN 40404 3816 28 of of IN 40404 3816 29 the the DT 40404 3816 30 growing grow VBG 40404 3816 31 planet planet NN 40404 3816 32 . . . 40404 3817 1 Thus thus RB 40404 3817 2 the the DT 40404 3817 3 surface surface NN 40404 3817 4 of of IN 40404 3817 5 the the DT 40404 3817 6 earth earth NN 40404 3817 7 may may MD 40404 3817 8 never never RB 40404 3817 9 have have VB 40404 3817 10 been be VBN 40404 3817 11 hot hot JJ 40404 3817 12 and and CC 40404 3817 13 luminous luminous JJ 40404 3817 14 ; ; : 40404 3817 15 but but CC 40404 3817 16 as as IN 40404 3817 17 the the DT 40404 3817 18 loose loose JJ 40404 3817 19 aggregation aggregation NN 40404 3817 20 of of IN 40404 3817 21 stony stony NNP 40404 3817 22 masses masse NNS 40404 3817 23 grew grow VBD 40404 3817 24 larger large JJR 40404 3817 25 and and CC 40404 3817 26 was be VBD 40404 3817 27 more more RBR 40404 3817 28 and and CC 40404 3817 29 more more RBR 40404 3817 30 compressed compress VBN 40404 3817 31 by by IN 40404 3817 32 its -PRON- PRP$ 40404 3817 33 own own JJ 40404 3817 34 gravitation gravitation NN 40404 3817 35 , , , 40404 3817 36 the the DT 40404 3817 37 heat heat NN 40404 3817 38 thus thus RB 40404 3817 39 generated generate VBD 40404 3817 40 raised raise VBD 40404 3817 41 the the DT 40404 3817 42 interior interior NN 40404 3817 43 to to IN 40404 3817 44 high high JJ 40404 3817 45 temperatures temperature NNS 40404 3817 46 , , , 40404 3817 47 while while IN 40404 3817 48 from from IN 40404 3817 49 time time NN 40404 3817 50 to to IN 40404 3817 51 time time NN 40404 3817 52 molten molten JJ 40404 3817 53 rock rock NN 40404 3817 54 was be VBD 40404 3817 55 intruded intrude VBN 40404 3817 56 among among IN 40404 3817 57 the the DT 40404 3817 58 loose loose JJ 40404 3817 59 , , , 40404 3817 60 cold cold JJ 40404 3817 61 meteoritic meteoritic JJ 40404 3817 62 masses masse NNS 40404 3817 63 of of IN 40404 3817 64 the the DT 40404 3817 65 crust crust NN 40404 3817 66 and and CC 40404 3817 67 outpoured outpoure VBD 40404 3817 68 upon upon IN 40404 3817 69 the the DT 40404 3817 70 surface surface NN 40404 3817 71 . . . 40404 3818 1 Such such PDT 40404 3818 2 a a DT 40404 3818 3 spiral spiral JJ 40404 3818 4 nebula nebula NN 40404 3818 5 might may MD 40404 3818 6 be be VB 40404 3818 7 formed form VBN 40404 3818 8 by by IN 40404 3818 9 the the DT 40404 3818 10 close close JJ 40404 3818 11 approach approach NN 40404 3818 12 of of IN 40404 3818 13 one one CD 40404 3818 14 star star NN 40404 3818 15 to to TO 40404 3818 16 another,--of another,--of VB 40404 3818 17 a a DT 40404 3818 18 passing pass VBG 40404 3818 19 star star NN 40404 3818 20 to to IN 40404 3818 21 our -PRON- PRP$ 40404 3818 22 own own JJ 40404 3818 23 sun sun NN 40404 3818 24 , , , 40404 3818 25 for for IN 40404 3818 26 example example NN 40404 3818 27 , , , 40404 3818 28 before before IN 40404 3818 29 the the DT 40404 3818 30 birth birth NN 40404 3818 31 of of IN 40404 3818 32 the the DT 40404 3818 33 solar solar JJ 40404 3818 34 system system NN 40404 3818 35 . . . 40404 3819 1 As as IN 40404 3819 2 the the DT 40404 3819 3 pull pull NN 40404 3819 4 of of IN 40404 3819 5 the the DT 40404 3819 6 moon moon NN 40404 3819 7 raises raise VBZ 40404 3819 8 the the DT 40404 3819 9 tides tide NNS 40404 3819 10 on on IN 40404 3819 11 opposite opposite JJ 40404 3819 12 sides side NNS 40404 3819 13 of of IN 40404 3819 14 the the DT 40404 3819 15 earth earth NN 40404 3819 16 , , , 40404 3819 17 so so CC 40404 3819 18 , , , 40404 3819 19 it -PRON- PRP 40404 3819 20 is be VBZ 40404 3819 21 supposed suppose VBN 40404 3819 22 , , , 40404 3819 23 the the DT 40404 3819 24 pull pull NN 40404 3819 25 of of IN 40404 3819 26 the the DT 40404 3819 27 passing pass VBG 40404 3819 28 star star NN 40404 3819 29 released release VBD 40404 3819 30 the the DT 40404 3819 31 explosive explosive JJ 40404 3819 32 forces force NNS 40404 3819 33 of of IN 40404 3819 34 the the DT 40404 3819 35 sun sun NN 40404 3819 36 , , , 40404 3819 37 and and CC 40404 3819 38 two two CD 40404 3819 39 streams stream NNS 40404 3819 40 of of IN 40404 3819 41 matter matter NN 40404 3819 42 were be VBD 40404 3819 43 flung fling VBN 40404 3819 44 out out RP 40404 3819 45 from from IN 40404 3819 46 it -PRON- PRP 40404 3819 47 . . . 40404 3820 1 The the DT 40404 3820 2 knots knot NNS 40404 3820 3 in in IN 40404 3820 4 the the DT 40404 3820 5 arms arm NNS 40404 3820 6 formed form VBD 40404 3820 7 the the DT 40404 3820 8 nuclei nucleus NNS 40404 3820 9 of of IN 40404 3820 10 the the DT 40404 3820 11 planets planet NNS 40404 3820 12 . . . 40404 3821 1 The the DT 40404 3821 2 gaseous gaseous JJ 40404 3821 3 matter matter NN 40404 3821 4 scattered scatter VBN 40404 3821 5 outside outside IN 40404 3821 6 the the DT 40404 3821 7 knots knot NNS 40404 3821 8 cooled cool VBD 40404 3821 9 into into IN 40404 3821 10 small small JJ 40404 3821 11 stony stony NN 40404 3821 12 masses masse NNS 40404 3821 13 , , , 40404 3821 14 revolving revolve VBG 40404 3821 15 about about IN 40404 3821 16 a a DT 40404 3821 17 central central JJ 40404 3821 18 mass mass NN 40404 3821 19 and and CC 40404 3821 20 hence hence RB 40404 3821 21 called call VBN 40404 3821 22 planetesimals planetesimal NNS 40404 3821 23 ( ( -LRB- 40404 3821 24 little little JJ 40404 3821 25 planets planet NNS 40404 3821 26 ) ) -RRB- 40404 3821 27 . . . 40404 3822 1 Like like IN 40404 3822 2 the the DT 40404 3822 3 meteorites meteorite NNS 40404 3822 4 which which WDT 40404 3822 5 still still RB 40404 3822 6 fall fall VBP 40404 3822 7 upon upon IN 40404 3822 8 the the DT 40404 3822 9 earth earth NN 40404 3822 10 , , , 40404 3822 11 the the DT 40404 3822 12 planetesimals planetesimal NNS 40404 3822 13 were be VBD 40404 3822 14 gradually gradually RB 40404 3822 15 gathered gather VBN 40404 3822 16 in in RP 40404 3822 17 by by IN 40404 3822 18 the the DT 40404 3822 19 nuclear nuclear JJ 40404 3822 20 knots knot NNS 40404 3822 21 , , , 40404 3822 22 which which WDT 40404 3822 23 thus thus RB 40404 3822 24 grew grow VBD 40404 3822 25 to to IN 40404 3822 26 the the DT 40404 3822 27 present present JJ 40404 3822 28 planets planet NNS 40404 3822 29 . . . 40404 3823 1 It -PRON- PRP 40404 3823 2 is be VBZ 40404 3823 3 supposed suppose VBN 40404 3823 4 that that IN 40404 3823 5 the the DT 40404 3823 6 meteorites meteorite NNS 40404 3823 7 of of IN 40404 3823 8 which which WDT 40404 3823 9 the the DT 40404 3823 10 earth earth NN 40404 3823 11 was be VBD 40404 3823 12 built build VBN 40404 3823 13 brought bring VBN 40404 3823 14 to to IN 40404 3823 15 it -PRON- PRP 40404 3823 16 , , , 40404 3823 17 as as IN 40404 3823 18 meteorites meteorite NNS 40404 3823 19 do do VBP 40404 3823 20 now now RB 40404 3823 21 , , , 40404 3823 22 various various JJ 40404 3823 23 gases gas NNS 40404 3823 24 shut shut VBD 40404 3823 25 up up RP 40404 3823 26 within within IN 40404 3823 27 their -PRON- PRP$ 40404 3823 28 pores pore NNS 40404 3823 29 . . . 40404 3824 1 As as IN 40404 3824 2 the the DT 40404 3824 3 heat heat NN 40404 3824 4 of of IN 40404 3824 5 the the DT 40404 3824 6 interior interior NNP 40404 3824 7 increased increase VBD 40404 3824 8 , , , 40404 3824 9 these these DT 40404 3824 10 gases gas NNS 40404 3824 11 transpired transpire VBD 40404 3824 12 to to IN 40404 3824 13 the the DT 40404 3824 14 surface surface NN 40404 3824 15 and and CC 40404 3824 16 formed form VBD 40404 3824 17 the the DT 40404 3824 18 primitive primitive JJ 40404 3824 19 atmosphere atmosphere NN 40404 3824 20 and and CC 40404 3824 21 hydrosphere hydrosphere NNP 40404 3824 22 . . . 40404 3825 1 The the DT 40404 3825 2 atmosphere atmosphere NN 40404 3825 3 has have VBZ 40404 3825 4 therefore therefore RB 40404 3825 5 grown grow VBN 40404 3825 6 slowly slowly RB 40404 3825 7 from from IN 40404 3825 8 the the DT 40404 3825 9 smallest small JJS 40404 3825 10 beginnings beginning NNS 40404 3825 11 . . . 40404 3826 1 Gases gas NNS 40404 3826 2 emitted emit VBD 40404 3826 3 from from IN 40404 3826 4 the the DT 40404 3826 5 interior interior NN 40404 3826 6 in in IN 40404 3826 7 volcanic volcanic JJ 40404 3826 8 eruptions eruption NNS 40404 3826 9 and and CC 40404 3826 10 in in IN 40404 3826 11 other other JJ 40404 3826 12 ways way NNS 40404 3826 13 have have VBP 40404 3826 14 ever ever RB 40404 3826 15 added add VBN 40404 3826 16 to to IN 40404 3826 17 it -PRON- PRP 40404 3826 18 , , , 40404 3826 19 and and CC 40404 3826 20 are be VBP 40404 3826 21 adding add VBG 40404 3826 22 to to IN 40404 3826 23 it -PRON- PRP 40404 3826 24 now now RB 40404 3826 25 . . . 40404 3827 1 On on IN 40404 3827 2 the the DT 40404 3827 3 other other JJ 40404 3827 4 hand hand NN 40404 3827 5 , , , 40404 3827 6 the the DT 40404 3827 7 atmosphere atmosphere NN 40404 3827 8 has have VBZ 40404 3827 9 constantly constantly RB 40404 3827 10 suffered suffer VBN 40404 3827 11 loss loss NN 40404 3827 12 , , , 40404 3827 13 as as IN 40404 3827 14 it -PRON- PRP 40404 3827 15 has have VBZ 40404 3827 16 been be VBN 40404 3827 17 robbed rob VBN 40404 3827 18 of of IN 40404 3827 19 oxygen oxygen NN 40404 3827 20 by by IN 40404 3827 21 the the DT 40404 3827 22 oxidation oxidation NN 40404 3827 23 of of IN 40404 3827 24 rocks rock NNS 40404 3827 25 in in IN 40404 3827 26 weathering weathering NN 40404 3827 27 , , , 40404 3827 28 and and CC 40404 3827 29 of of IN 40404 3827 30 carbon carbon NN 40404 3827 31 dioxide dioxide NN 40404 3827 32 in in IN 40404 3827 33 the the DT 40404 3827 34 making making NN 40404 3827 35 of of IN 40404 3827 36 limestones limestone NNS 40404 3827 37 and and CC 40404 3827 38 carbonaceous carbonaceous JJ 40404 3827 39 deposits deposit NNS 40404 3827 40 . . . 40404 3828 1 While while IN 40404 3828 2 all all DT 40404 3828 3 hypotheses hypothesis NNS 40404 3828 4 of of IN 40404 3828 5 the the DT 40404 3828 6 earth earth NN 40404 3828 7 's 's POS 40404 3828 8 beginnings beginning NNS 40404 3828 9 are be VBP 40404 3828 10 as as RB 40404 3828 11 yet yet RB 40404 3828 12 unproved unproved JJ 40404 3828 13 speculations speculation NNS 40404 3828 14 , , , 40404 3828 15 they -PRON- PRP 40404 3828 16 serve serve VBP 40404 3828 17 to to TO 40404 3828 18 bring bring VB 40404 3828 19 to to IN 40404 3828 20 mind mind VB 40404 3828 21 one one CD 40404 3828 22 of of IN 40404 3828 23 the the DT 40404 3828 24 chief chief JJ 40404 3828 25 lessons lesson NNS 40404 3828 26 which which WDT 40404 3828 27 geology geology NN 40404 3828 28 has have VBZ 40404 3828 29 to to IN 40404 3828 30 teach,--that teach,--that NNP 40404 3828 31 the the DT 40404 3828 32 duration duration NN 40404 3828 33 of of IN 40404 3828 34 the the DT 40404 3828 35 earth earth NN 40404 3828 36 in in IN 40404 3828 37 time time NN 40404 3828 38 , , , 40404 3828 39 like like IN 40404 3828 40 the the DT 40404 3828 41 extension extension NN 40404 3828 42 of of IN 40404 3828 43 the the DT 40404 3828 44 universe universe NN 40404 3828 45 in in IN 40404 3828 46 space space NN 40404 3828 47 , , , 40404 3828 48 is be VBZ 40404 3828 49 vastly vastly RB 40404 3828 50 beyond beyond IN 40404 3828 51 the the DT 40404 3828 52 power power NN 40404 3828 53 of of IN 40404 3828 54 the the DT 40404 3828 55 human human JJ 40404 3828 56 mind mind NN 40404 3828 57 to to TO 40404 3828 58 realize realize VB 40404 3828 59 . . . 40404 3829 1 Behind behind IN 40404 3829 2 the the DT 40404 3829 3 history history NN 40404 3829 4 recorded record VBN 40404 3829 5 in in IN 40404 3829 6 the the DT 40404 3829 7 rocks rock NNS 40404 3829 8 , , , 40404 3829 9 which which WDT 40404 3829 10 stretches stretch VBZ 40404 3829 11 back back RB 40404 3829 12 for for IN 40404 3829 13 many many JJ 40404 3829 14 million million CD 40404 3829 15 years year NNS 40404 3829 16 , , , 40404 3829 17 lies lie VBZ 40404 3829 18 the the DT 40404 3829 19 long long JJ 40404 3829 20 unrecorded unrecorded JJ 40404 3829 21 history history NN 40404 3829 22 of of IN 40404 3829 23 the the DT 40404 3829 24 beginnings beginning NNS 40404 3829 25 of of IN 40404 3829 26 the the DT 40404 3829 27 planet planet NN 40404 3829 28 ; ; : 40404 3829 29 and and CC 40404 3829 30 still still RB 40404 3829 31 farther farther RB 40404 3829 32 in in IN 40404 3829 33 the the DT 40404 3829 34 abysses abyss NNS 40404 3829 35 of of IN 40404 3829 36 the the DT 40404 3829 37 past past NN 40404 3829 38 are be VBP 40404 3829 39 dimly dimly RB 40404 3829 40 seen see VBN 40404 3829 41 the the DT 40404 3829 42 cycles cycle NNS 40404 3829 43 of of IN 40404 3829 44 the the DT 40404 3829 45 evolution evolution NN 40404 3829 46 of of IN 40404 3829 47 the the DT 40404 3829 48 solar solar JJ 40404 3829 49 system system NN 40404 3829 50 and and CC 40404 3829 51 of of IN 40404 3829 52 the the DT 40404 3829 53 nebula nebula NN 40404 3829 54 which which WDT 40404 3829 55 gave give VBD 40404 3829 56 it -PRON- PRP 40404 3829 57 birth birth NN 40404 3829 58 . . . 40404 3830 1 We -PRON- PRP 40404 3830 2 pass pass VBP 40404 3830 3 now now RB 40404 3830 4 from from IN 40404 3830 5 the the DT 40404 3830 6 dim dim JJ 40404 3830 7 realm realm NN 40404 3830 8 of of IN 40404 3830 9 speculation speculation NN 40404 3830 10 to to IN 40404 3830 11 the the DT 40404 3830 12 earliest early JJS 40404 3830 13 era era NN 40404 3830 14 of of IN 40404 3830 15 the the DT 40404 3830 16 recorded record VBN 40404 3830 17 history history NN 40404 3830 18 of of IN 40404 3830 19 the the DT 40404 3830 20 earth earth NN 40404 3830 21 , , , 40404 3830 22 where where WRB 40404 3830 23 some some DT 40404 3830 24 certain certain JJ 40404 3830 25 facts fact NNS 40404 3830 26 may may MD 40404 3830 27 be be VB 40404 3830 28 observed observe VBN 40404 3830 29 and and CC 40404 3830 30 some some DT 40404 3830 31 sure sure JJ 40404 3830 32 inferences inference NNS 40404 3830 33 from from IN 40404 3830 34 them -PRON- PRP 40404 3830 35 may may MD 40404 3830 36 be be VB 40404 3830 37 drawn draw VBN 40404 3830 38 . . . 40404 3831 1 The the DT 40404 3831 2 Archean Archean NNP 40404 3831 3 The the DT 40404 3831 4 oldest oldest RBS 40404 3831 5 known know VBN 40404 3831 6 sedimentary sedimentary JJ 40404 3831 7 strata strata NN 40404 3831 8 , , , 40404 3831 9 wherever wherever WRB 40404 3831 10 they -PRON- PRP 40404 3831 11 are be VBP 40404 3831 12 exposed expose VBN 40404 3831 13 by by IN 40404 3831 14 uplift uplift NN 40404 3831 15 and and CC 40404 3831 16 erosion erosion NN 40404 3831 17 , , , 40404 3831 18 are be VBP 40404 3831 19 found find VBN 40404 3831 20 to to TO 40404 3831 21 be be VB 40404 3831 22 involved involve VBN 40404 3831 23 with with IN 40404 3831 24 a a DT 40404 3831 25 mass mass NN 40404 3831 26 of of IN 40404 3831 27 crystalline crystalline NN 40404 3831 28 rocks rock NNS 40404 3831 29 which which WDT 40404 3831 30 possesses possess VBZ 40404 3831 31 the the DT 40404 3831 32 same same JJ 40404 3831 33 characteristics characteristic NNS 40404 3831 34 in in IN 40404 3831 35 all all DT 40404 3831 36 parts part NNS 40404 3831 37 of of IN 40404 3831 38 the the DT 40404 3831 39 world world NN 40404 3831 40 . . . 40404 3832 1 It -PRON- PRP 40404 3832 2 consists consist VBZ 40404 3832 3 of of IN 40404 3832 4 foliated foliated JJ 40404 3832 5 rocks rock NNS 40404 3832 6 , , , 40404 3832 7 gneisses gneiss NNS 40404 3832 8 , , , 40404 3832 9 and and CC 40404 3832 10 schists schist NNS 40404 3832 11 of of IN 40404 3832 12 various various JJ 40404 3832 13 kinds kind NNS 40404 3832 14 , , , 40404 3832 15 which which WDT 40404 3832 16 have have VBP 40404 3832 17 been be VBN 40404 3832 18 cut cut VBN 40404 3832 19 with with IN 40404 3832 20 dikes dike NNS 40404 3832 21 and and CC 40404 3832 22 other other JJ 40404 3832 23 intrusions intrusion NNS 40404 3832 24 of of IN 40404 3832 25 molten molten JJ 40404 3832 26 rock rock NN 40404 3832 27 , , , 40404 3832 28 and and CC 40404 3832 29 have have VBP 40404 3832 30 been be VBN 40404 3832 31 broken break VBN 40404 3832 32 , , , 40404 3832 33 crumpled crumple VBN 40404 3832 34 , , , 40404 3832 35 and and CC 40404 3832 36 crushed crush VBN 40404 3832 37 , , , 40404 3832 38 and and CC 40404 3832 39 left leave VBD 40404 3832 40 in in RP 40404 3832 41 interlocking interlock VBG 40404 3832 42 masses masse NNS 40404 3832 43 so so RB 40404 3832 44 confused confuse VBD 40404 3832 45 that that IN 40404 3832 46 their -PRON- PRP$ 40404 3832 47 true true JJ 40404 3832 48 arrangement arrangement NN 40404 3832 49 can can MD 40404 3832 50 usually usually RB 40404 3832 51 be be VB 40404 3832 52 made make VBN 40404 3832 53 out out RP 40404 3832 54 only only RB 40404 3832 55 with with IN 40404 3832 56 the the DT 40404 3832 57 greatest great JJS 40404 3832 58 difficulty difficulty NN 40404 3832 59 if if IN 40404 3832 60 at at RB 40404 3832 61 all all RB 40404 3832 62 . . . 40404 3833 1 The the DT 40404 3833 2 condition condition NN 40404 3833 3 of of IN 40404 3833 4 this this DT 40404 3833 5 body body NN 40404 3833 6 of of IN 40404 3833 7 crystalline crystalline NN 40404 3833 8 rocks rock NNS 40404 3833 9 is be VBZ 40404 3833 10 due due JJ 40404 3833 11 to to IN 40404 3833 12 the the DT 40404 3833 13 fact fact NN 40404 3833 14 that that IN 40404 3833 15 they -PRON- PRP 40404 3833 16 have have VBP 40404 3833 17 suffered suffer VBN 40404 3833 18 not not RB 40404 3833 19 only only RB 40404 3833 20 from from IN 40404 3833 21 the the DT 40404 3833 22 faultings faulting NNS 40404 3833 23 , , , 40404 3833 24 foldings folding NNS 40404 3833 25 , , , 40404 3833 26 and and CC 40404 3833 27 igneous igneous JJ 40404 3833 28 intrusions intrusion NNS 40404 3833 29 of of IN 40404 3833 30 their -PRON- PRP$ 40404 3833 31 time time NN 40404 3833 32 , , , 40404 3833 33 but but CC 40404 3833 34 necessarily necessarily RB 40404 3833 35 , , , 40404 3833 36 also also RB 40404 3833 37 , , , 40404 3833 38 from from IN 40404 3833 39 those those DT 40404 3833 40 of of IN 40404 3833 41 all all DT 40404 3833 42 later later RB 40404 3833 43 geological geological JJ 40404 3833 44 ages age NNS 40404 3833 45 . . . 40404 3834 1 At at IN 40404 3834 2 present present JJ 40404 3834 3 three three CD 40404 3834 4 leading leading JJ 40404 3834 5 theories theory NNS 40404 3834 6 are be VBP 40404 3834 7 held hold VBN 40404 3834 8 as as IN 40404 3834 9 to to IN 40404 3834 10 the the DT 40404 3834 11 origin origin NN 40404 3834 12 of of IN 40404 3834 13 these these DT 40404 3834 14 basal basal NN 40404 3834 15 crystalline crystalline NN 40404 3834 16 rocks rock NNS 40404 3834 17 . . . 40404 3835 1 1 1 LS 40404 3835 2 . . . 40404 3836 1 They -PRON- PRP 40404 3836 2 are be VBP 40404 3836 3 considered consider VBN 40404 3836 4 by by IN 40404 3836 5 perhaps perhaps RB 40404 3836 6 the the DT 40404 3836 7 majority majority NN 40404 3836 8 of of IN 40404 3836 9 the the DT 40404 3836 10 geologists geologist NNS 40404 3836 11 who who WP 40404 3836 12 have have VBP 40404 3836 13 studied study VBN 40404 3836 14 them -PRON- PRP 40404 3836 15 most most RBS 40404 3836 16 carefully carefully RB 40404 3836 17 to to TO 40404 3836 18 be be VB 40404 3836 19 igneous igneous JJ 40404 3836 20 rocks rock NNS 40404 3836 21 intruded intrude VBN 40404 3836 22 in in IN 40404 3836 23 a a DT 40404 3836 24 molten molten JJ 40404 3836 25 state state NN 40404 3836 26 among among IN 40404 3836 27 the the DT 40404 3836 28 sedimentary sedimentary JJ 40404 3836 29 rocks rock NNS 40404 3836 30 involved involve VBN 40404 3836 31 with with IN 40404 3836 32 them -PRON- PRP 40404 3836 33 . . . 40404 3837 1 In in IN 40404 3837 2 many many JJ 40404 3837 3 localities locality NNS 40404 3837 4 this this DT 40404 3837 5 relation relation NN 40404 3837 6 is be VBZ 40404 3837 7 proved prove VBN 40404 3837 8 by by IN 40404 3837 9 the the DT 40404 3837 10 phenomena phenomenon NNS 40404 3837 11 of of IN 40404 3837 12 contact contact NN 40404 3837 13 ( ( -LRB- 40404 3837 14 p. p. NN 40404 3837 15 268 268 CD 40404 3837 16 ) ) -RRB- 40404 3837 17 ; ; : 40404 3837 18 but but CC 40404 3837 19 for for IN 40404 3837 20 the the DT 40404 3837 21 most most JJS 40404 3837 22 part part NN 40404 3837 23 the the DT 40404 3837 24 deformations deformation NNS 40404 3837 25 which which WDT 40404 3837 26 the the DT 40404 3837 27 rocks rock NNS 40404 3837 28 have have VBP 40404 3837 29 since since IN 40404 3837 30 suffered suffer VBN 40404 3837 31 again again RB 40404 3837 32 and and CC 40404 3837 33 again again RB 40404 3837 34 have have VBP 40404 3837 35 been be VBN 40404 3837 36 sufficient sufficient JJ 40404 3837 37 to to TO 40404 3837 38 destroy destroy VB 40404 3837 39 such such JJ 40404 3837 40 evidence evidence NN 40404 3837 41 if if IN 40404 3837 42 it -PRON- PRP 40404 3837 43 ever ever RB 40404 3837 44 existed exist VBD 40404 3837 45 . . . 40404 3838 1 2 2 LS 40404 3838 2 . . . 40404 3839 1 An an DT 40404 3839 2 older old JJR 40404 3839 3 view view NN 40404 3839 4 regards regard VBZ 40404 3839 5 them -PRON- PRP 40404 3839 6 as as RB 40404 3839 7 profoundly profoundly RB 40404 3839 8 altered alter VBN 40404 3839 9 sedimentary sedimentary JJ 40404 3839 10 strata strata NN 40404 3839 11 , , , 40404 3839 12 the the DT 40404 3839 13 most most RBS 40404 3839 14 ancient ancient JJ 40404 3839 15 of of IN 40404 3839 16 the the DT 40404 3839 17 earth earth NN 40404 3839 18 . . . 40404 3840 1 3 3 LS 40404 3840 2 . . . 40404 3841 1 According accord VBG 40404 3841 2 to to IN 40404 3841 3 a a DT 40404 3841 4 third third JJ 40404 3841 5 theory theory NN 40404 3841 6 they -PRON- PRP 40404 3841 7 represent represent VBP 40404 3841 8 portions portion NNS 40404 3841 9 of of IN 40404 3841 10 the the DT 40404 3841 11 earth earth NN 40404 3841 12 's 's POS 40404 3841 13 original original JJ 40404 3841 14 crust crust NN 40404 3841 15 ; ; : 40404 3841 16 not not RB 40404 3841 17 , , , 40404 3841 18 indeed indeed RB 40404 3841 19 , , , 40404 3841 20 its -PRON- PRP$ 40404 3841 21 original original JJ 40404 3841 22 surface surface NN 40404 3841 23 , , , 40404 3841 24 but but CC 40404 3841 25 deeper deep JJR 40404 3841 26 portions portion NNS 40404 3841 27 uncovered uncover VBN 40404 3841 28 by by IN 40404 3841 29 erosion erosion NN 40404 3841 30 and and CC 40404 3841 31 afterwards afterwards RB 40404 3841 32 mantled mantle VBN 40404 3841 33 with with IN 40404 3841 34 sedimentary sedimentary JJ 40404 3841 35 deposits deposit NNS 40404 3841 36 . . . 40404 3842 1 All all PDT 40404 3842 2 these these DT 40404 3842 3 theories theory NNS 40404 3842 4 agree agree VBP 40404 3842 5 that that IN 40404 3842 6 the the DT 40404 3842 7 present present JJ 40404 3842 8 foliated foliated JJ 40404 3842 9 condition condition NN 40404 3842 10 of of IN 40404 3842 11 these these DT 40404 3842 12 rocks rock NNS 40404 3842 13 is be VBZ 40404 3842 14 due due JJ 40404 3842 15 to to IN 40404 3842 16 the the DT 40404 3842 17 intense intense JJ 40404 3842 18 metamorphism metamorphism NN 40404 3842 19 which which WDT 40404 3842 20 they -PRON- PRP 40404 3842 21 have have VBP 40404 3842 22 suffered suffer VBN 40404 3842 23 . . . 40404 3843 1 It -PRON- PRP 40404 3843 2 is be VBZ 40404 3843 3 to to IN 40404 3843 4 this this DT 40404 3843 5 body body NN 40404 3843 6 of of IN 40404 3843 7 crystalline crystalline NN 40404 3843 8 rocks rock NNS 40404 3843 9 and and CC 40404 3843 10 the the DT 40404 3843 11 stratified stratified JJ 40404 3843 12 rocks rock NNS 40404 3843 13 involved involve VBN 40404 3843 14 with with IN 40404 3843 15 it -PRON- PRP 40404 3843 16 , , , 40404 3843 17 which which WDT 40404 3843 18 form form VBP 40404 3843 19 a a DT 40404 3843 20 very very RB 40404 3843 21 small small JJ 40404 3843 22 proportion proportion NN 40404 3843 23 of of IN 40404 3843 24 its -PRON- PRP$ 40404 3843 25 mass mass NN 40404 3843 26 , , , 40404 3843 27 that that IN 40404 3843 28 the the DT 40404 3843 29 term term NN 40404 3843 30 _ _ NNP 40404 3843 31 Archean Archean NNP 40404 3843 32 _ _ NNP 40404 3843 33 ( ( -LRB- 40404 3843 34 Greek Greek NNP 40404 3843 35 , , , 40404 3843 36 arche arche NNP 40404 3843 37 , , , 40404 3843 38 beginning beginning NN 40404 3843 39 ) ) -RRB- 40404 3843 40 is be VBZ 40404 3843 41 applied apply VBN 40404 3843 42 by by IN 40404 3843 43 many many JJ 40404 3843 44 geologists geologist NNS 40404 3843 45 . . . 40404 3844 1 The the DT 40404 3844 2 Algonkian Algonkian NNP 40404 3844 3 In in IN 40404 3844 4 some some DT 40404 3844 5 regions region NNS 40404 3844 6 there there RB 40404 3844 7 rests rest VBZ 40404 3844 8 unconformably unconformably RB 40404 3844 9 on on IN 40404 3844 10 the the DT 40404 3844 11 Archean Archean NNP 40404 3844 12 an an DT 40404 3844 13 immense immense JJ 40404 3844 14 body body NN 40404 3844 15 of of IN 40404 3844 16 stratified stratified JJ 40404 3844 17 rocks rock NNS 40404 3844 18 , , , 40404 3844 19 thousands thousand NNS 40404 3844 20 and and CC 40404 3844 21 in in IN 40404 3844 22 places place NNS 40404 3844 23 even even RB 40404 3844 24 scores score NNS 40404 3844 25 of of IN 40404 3844 26 thousands thousand NNS 40404 3844 27 of of IN 40404 3844 28 feet foot NNS 40404 3844 29 thick thick JJ 40404 3844 30 , , , 40404 3844 31 known know VBN 40404 3844 32 as as IN 40404 3844 33 the the DT 40404 3844 34 _ _ NNP 40404 3844 35 Algonkian Algonkian NNP 40404 3844 36 _ _ NNP 40404 3844 37 . . . 40404 3845 1 Great great JJ 40404 3845 2 unconformities unconformitie NNS 40404 3845 3 divide divide VBP 40404 3845 4 it -PRON- PRP 40404 3845 5 into into IN 40404 3845 6 well well RB 40404 3845 7 - - HYPH 40404 3845 8 defined define VBN 40404 3845 9 systems system NNS 40404 3845 10 , , , 40404 3845 11 but but CC 40404 3845 12 as as IN 40404 3845 13 only only RB 40404 3845 14 the the DT 40404 3845 15 scantiest scanty JJS 40404 3845 16 traces trace NNS 40404 3845 17 of of IN 40404 3845 18 fossils fossil NNS 40404 3845 19 appear appear VBP 40404 3845 20 here here RB 40404 3845 21 and and CC 40404 3845 22 there there RB 40404 3845 23 among among IN 40404 3845 24 its -PRON- PRP$ 40404 3845 25 strata strata NN 40404 3845 26 , , , 40404 3845 27 it -PRON- PRP 40404 3845 28 is be VBZ 40404 3845 29 as as RB 40404 3845 30 yet yet RB 40404 3845 31 impossible impossible JJ 40404 3845 32 to to TO 40404 3845 33 correlate correlate VB 40404 3845 34 the the DT 40404 3845 35 formations formation NNS 40404 3845 36 of of IN 40404 3845 37 different different JJ 40404 3845 38 regions region NNS 40404 3845 39 and and CC 40404 3845 40 to to TO 40404 3845 41 give give VB 40404 3845 42 them -PRON- PRP 40404 3845 43 names name NNS 40404 3845 44 of of IN 40404 3845 45 more more JJR 40404 3845 46 than than IN 40404 3845 47 local local JJ 40404 3845 48 application application NN 40404 3845 49 . . . 40404 3846 1 We -PRON- PRP 40404 3846 2 will will MD 40404 3846 3 describe describe VB 40404 3846 4 the the DT 40404 3846 5 Algonkian algonkian JJ 40404 3846 6 rocks rock NNS 40404 3846 7 of of IN 40404 3846 8 two two CD 40404 3846 9 typical typical JJ 40404 3846 10 areas area NNS 40404 3846 11 . . . 40404 3847 1 = = NFP 40404 3847 2 The the DT 40404 3847 3 Grand Grand NNP 40404 3847 4 Canyon Canyon NNP 40404 3847 5 of of IN 40404 3847 6 the the DT 40404 3847 7 Colorado.= colorado.= NN 40404 3847 8 We -PRON- PRP 40404 3847 9 have have VBP 40404 3847 10 already already RB 40404 3847 11 studied study VBN 40404 3847 12 a a DT 40404 3847 13 very very RB 40404 3847 14 ancient ancient JJ 40404 3847 15 peneplain peneplain NN 40404 3847 16 whose whose WP$ 40404 3847 17 edge edge NN 40404 3847 18 is be VBZ 40404 3847 19 exposed expose VBN 40404 3847 20 to to TO 40404 3847 21 view view VB 40404 3847 22 deep deep RB 40404 3847 23 on on IN 40404 3847 24 the the DT 40404 3847 25 walls wall NNS 40404 3847 26 of of IN 40404 3847 27 the the DT 40404 3847 28 Colorado Colorado NNP 40404 3847 29 Canyon Canyon NNP 40404 3847 30 ( ( -LRB- 40404 3847 31 _ _ NNP 40404 3847 32 nu nu NNP 40404 3847 33 ´ ´ NNP 40404 3847 34 _ _ NNP 40404 3847 35 , , , 40404 3847 36 Fig Fig NNP 40404 3847 37 . . . 40404 3848 1 207 207 CD 40404 3848 2 ) ) -RRB- 40404 3848 3 . . . 40404 3849 1 The the DT 40404 3849 2 formation formation NN 40404 3849 3 of of IN 40404 3849 4 flat flat RB 40404 3849 5 - - HYPH 40404 3849 6 lying lie VBG 40404 3849 7 sandstone sandstone NN 40404 3849 8 which which WDT 40404 3849 9 covers cover VBZ 40404 3849 10 this this DT 40404 3849 11 buried bury VBN 40404 3849 12 land land NN 40404 3849 13 surface surface NN 40404 3849 14 is be VBZ 40404 3849 15 proved prove VBN 40404 3849 16 by by IN 40404 3849 17 its -PRON- PRP$ 40404 3849 18 fossils fossil NNS 40404 3849 19 to to TO 40404 3849 20 belong belong VB 40404 3849 21 to to IN 40404 3849 22 the the DT 40404 3849 23 Cambrian,--the Cambrian,--the NNP 40404 3849 24 earliest early JJS 40404 3849 25 period period NN 40404 3849 26 of of IN 40404 3849 27 the the DT 40404 3849 28 Paleozoic Paleozoic NNP 40404 3849 29 era era NN 40404 3849 30 . . . 40404 3850 1 The the DT 40404 3850 2 tilted tilt VBN 40404 3850 3 rocks rock NNS 40404 3850 4 ( ( -LRB- 40404 3850 5 _ _ NNP 40404 3850 6 b b NNP 40404 3850 7 _ _ NNP 40404 3850 8 , , , 40404 3850 9 Fig Fig NNP 40404 3850 10 . . . 40404 3851 1 207 207 CD 40404 3851 2 ) ) -RRB- 40404 3851 3 . . . 40404 3852 1 on on IN 40404 3852 2 whose whose WP$ 40404 3852 3 upturned upturned JJ 40404 3852 4 edges edge NNS 40404 3852 5 the the DT 40404 3852 6 Cambrian cambrian JJ 40404 3852 7 sandstone sandstone NN 40404 3852 8 rests rest NNS 40404 3852 9 are be VBP 40404 3852 10 far far RB 40404 3852 11 older old JJR 40404 3852 12 , , , 40404 3852 13 for for IN 40404 3852 14 the the DT 40404 3852 15 physical physical JJ 40404 3852 16 break break NN 40404 3852 17 which which WDT 40404 3852 18 separates separate VBZ 40404 3852 19 them -PRON- PRP 40404 3852 20 from from IN 40404 3852 21 it -PRON- PRP 40404 3852 22 records record VBZ 40404 3852 23 a a DT 40404 3852 24 time time NN 40404 3852 25 interval interval NN 40404 3852 26 during during IN 40404 3852 27 which which WDT 40404 3852 28 they -PRON- PRP 40404 3852 29 were be VBD 40404 3852 30 upheaved upheaved JJ 40404 3852 31 to to IN 40404 3852 32 mountainous mountainous JJ 40404 3852 33 ridges ridge NNS 40404 3852 34 and and CC 40404 3852 35 worn wear VBN 40404 3852 36 down down RP 40404 3852 37 to to IN 40404 3852 38 a a DT 40404 3852 39 low low JJ 40404 3852 40 plain plain NN 40404 3852 41 . . . 40404 3853 1 They -PRON- PRP 40404 3853 2 are be VBP 40404 3853 3 therefore therefore RB 40404 3853 4 classified classified JJ 40404 3853 5 as as IN 40404 3853 6 Algonkian Algonkian NNP 40404 3853 7 . . . 40404 3854 1 They -PRON- PRP 40404 3854 2 comprise comprise VBP 40404 3854 3 two two CD 40404 3854 4 immense immense JJ 40404 3854 5 series series NN 40404 3854 6 . . . 40404 3855 1 The the DT 40404 3855 2 upper upper JJ 40404 3855 3 is be VBZ 40404 3855 4 more more JJR 40404 3855 5 than than IN 40404 3855 6 five five CD 40404 3855 7 thousand thousand CD 40404 3855 8 feet foot NNS 40404 3855 9 thick thick JJ 40404 3855 10 and and CC 40404 3855 11 consists consist VBZ 40404 3855 12 of of IN 40404 3855 13 shales shale NNS 40404 3855 14 and and CC 40404 3855 15 sandstones sandstone NNS 40404 3855 16 with with IN 40404 3855 17 some some DT 40404 3855 18 limestones limestone NNS 40404 3855 19 . . . 40404 3856 1 Separated separate VBN 40404 3856 2 from from IN 40404 3856 3 it -PRON- PRP 40404 3856 4 by by IN 40404 3856 5 an an DT 40404 3856 6 unconformity unconformity NN 40404 3856 7 which which WDT 40404 3856 8 does do VBZ 40404 3856 9 not not RB 40404 3856 10 appear appear VB 40404 3856 11 in in IN 40404 3856 12 Figure Figure NNP 40404 3856 13 207 207 CD 40404 3856 14 , , , 40404 3856 15 the the DT 40404 3856 16 lower low JJR 40404 3856 17 division division NN 40404 3856 18 , , , 40404 3856 19 seven seven CD 40404 3856 20 thousand thousand CD 40404 3856 21 feet foot NNS 40404 3856 22 thick thick JJ 40404 3856 23 , , , 40404 3856 24 consists consist VBZ 40404 3856 25 chiefly chiefly RB 40404 3856 26 of of IN 40404 3856 27 massive massive JJ 40404 3856 28 reddish reddish JJ 40404 3856 29 sandstones sandstone NNS 40404 3856 30 with with IN 40404 3856 31 seven seven CD 40404 3856 32 or or CC 40404 3856 33 more more JJR 40404 3856 34 sheets sheet NNS 40404 3856 35 of of IN 40404 3856 36 lava lava NN 40404 3856 37 interbedded interbedde VBD 40404 3856 38 . . . 40404 3857 1 The the DT 40404 3857 2 lowest low JJS 40404 3857 3 member member NN 40404 3857 4 is be VBZ 40404 3857 5 a a DT 40404 3857 6 basal basal NN 40404 3857 7 conglomerate conglomerate NN 40404 3857 8 composed compose VBN 40404 3857 9 of of IN 40404 3857 10 pebbles pebble NNS 40404 3857 11 derived derive VBN 40404 3857 12 from from IN 40404 3857 13 the the DT 40404 3857 14 erosion erosion NN 40404 3857 15 of of IN 40404 3857 16 the the DT 40404 3857 17 dark dark JJ 40404 3857 18 crumpled crumple VBN 40404 3857 19 schists schist NNS 40404 3857 20 beneath,--schists beneath,--schist NNS 40404 3857 21 which which WDT 40404 3857 22 are be VBP 40404 3857 23 supposed suppose VBN 40404 3857 24 to to TO 40404 3857 25 be be VB 40404 3857 26 Archean Archean NNP 40404 3857 27 . . . 40404 3858 1 As as IN 40404 3858 2 shown show VBN 40404 3858 3 in in IN 40404 3858 4 Figure Figure NNP 40404 3858 5 207 207 CD 40404 3858 6 , , , 40404 3858 7 a a DT 40404 3858 8 strong strong JJ 40404 3858 9 unconformity unconformity NN 40404 3858 10 ( ( -LRB- 40404 3858 11 _ _ NNP 40404 3858 12 nm nm NNP 40404 3858 13 ´ ´ NNP 40404 3858 14 _ _ NNP 40404 3858 15 , , , 40404 3858 16 Fig Fig NNP 40404 3858 17 . . . 40404 3859 1 207 207 LS 40404 3859 2 ) ) -RRB- 40404 3859 3 parts part VBZ 40404 3859 4 the the DT 40404 3859 5 schists schist NNS 40404 3859 6 and and CC 40404 3859 7 the the DT 40404 3859 8 Algonkian Algonkian NNP 40404 3859 9 . . . 40404 3860 1 The the DT 40404 3860 2 floor floor NN 40404 3860 3 on on IN 40404 3860 4 which which WDT 40404 3860 5 the the DT 40404 3860 6 Algonkian algonkian JJ 40404 3860 7 rests rest NNS 40404 3860 8 is be VBZ 40404 3860 9 remarkably remarkably RB 40404 3860 10 even even RB 40404 3860 11 , , , 40404 3860 12 and and CC 40404 3860 13 here here RB 40404 3860 14 again again RB 40404 3860 15 is be VBZ 40404 3860 16 proved prove VBN 40404 3860 17 an an DT 40404 3860 18 interval interval NN 40404 3860 19 of of IN 40404 3860 20 incalculable incalculable JJ 40404 3860 21 length length NN 40404 3860 22 , , , 40404 3860 23 during during IN 40404 3860 24 which which WDT 40404 3860 25 an an DT 40404 3860 26 ancient ancient JJ 40404 3860 27 land land NN 40404 3860 28 mass mass NN 40404 3860 29 of of IN 40404 3860 30 Archean Archean NNP 40404 3860 31 rocks rock NNS 40404 3860 32 was be VBD 40404 3860 33 baseleveled baselevele VBN 40404 3860 34 before before IN 40404 3860 35 it -PRON- PRP 40404 3860 36 received receive VBD 40404 3860 37 the the DT 40404 3860 38 cover cover NN 40404 3860 39 of of IN 40404 3860 40 the the DT 40404 3860 41 sediments sediment NNS 40404 3860 42 of of IN 40404 3860 43 the the DT 40404 3860 44 later later JJ 40404 3860 45 age age NN 40404 3860 46 . . . 40404 3861 1 = = NFP 40404 3861 2 The the DT 40404 3861 3 Lake Lake NNP 40404 3861 4 Superior Superior NNP 40404 3861 5 region.= region.= CD 40404 3861 6 In in IN 40404 3861 7 eastern eastern JJ 40404 3861 8 Canada Canada NNP 40404 3861 9 an an DT 40404 3861 10 area area NN 40404 3861 11 of of IN 40404 3861 12 pre pre JJ 40404 3861 13 - - JJ 40404 3861 14 Cambrian cambrian JJ 40404 3861 15 rocks rock NNS 40404 3861 16 , , , 40404 3861 17 Archean Archean NNP 40404 3861 18 and and CC 40404 3861 19 Algonkian Algonkian NNP 40404 3861 20 , , , 40404 3861 21 estimated estimate VBN 40404 3861 22 at at IN 40404 3861 23 two two CD 40404 3861 24 million million CD 40404 3861 25 square square JJ 40404 3861 26 miles mile NNS 40404 3861 27 , , , 40404 3861 28 stretches stretch NNS 40404 3861 29 from from IN 40404 3861 30 the the DT 40404 3861 31 Great Great NNP 40404 3861 32 Lakes Lakes NNPS 40404 3861 33 and and CC 40404 3861 34 the the DT 40404 3861 35 St. St. NNP 40404 3861 36 Lawrence Lawrence NNP 40404 3861 37 River River NNP 40404 3861 38 northward northward RB 40404 3861 39 to to IN 40404 3861 40 the the DT 40404 3861 41 confines confine NNS 40404 3861 42 of of IN 40404 3861 43 the the DT 40404 3861 44 continent continent NN 40404 3861 45 , , , 40404 3861 46 inclosing inclose VBG 40404 3861 47 Hudson Hudson NNP 40404 3861 48 Bay Bay NNP 40404 3861 49 in in IN 40404 3861 50 the the DT 40404 3861 51 arms arm NNS 40404 3861 52 of of IN 40404 3861 53 a a DT 40404 3861 54 gigantic gigantic JJ 40404 3861 55 U. u. NN 40404 3862 1 This this DT 40404 3862 2 immense immense JJ 40404 3862 3 area area NN 40404 3862 4 , , , 40404 3862 5 which which WDT 40404 3862 6 we -PRON- PRP 40404 3862 7 have have VBP 40404 3862 8 already already RB 40404 3862 9 studied study VBN 40404 3862 10 as as IN 40404 3862 11 the the DT 40404 3862 12 Laurentian laurentian JJ 40404 3862 13 peneplain peneplain NN 40404 3862 14 ( ( -LRB- 40404 3862 15 p. p. NN 40404 3862 16 89 89 CD 40404 3862 17 ) ) -RRB- 40404 3862 18 , , , 40404 3862 19 extends extend VBZ 40404 3862 20 southward southward RB 40404 3862 21 across across IN 40404 3862 22 the the DT 40404 3862 23 Canadian canadian JJ 40404 3862 24 border border NN 40404 3862 25 into into IN 40404 3862 26 northern northern JJ 40404 3862 27 Minnesota Minnesota NNP 40404 3862 28 , , , 40404 3862 29 Wisconsin Wisconsin NNP 40404 3862 30 , , , 40404 3862 31 and and CC 40404 3862 32 Michigan Michigan NNP 40404 3862 33 . . . 40404 3863 1 The the DT 40404 3863 2 rocks rock NNS 40404 3863 3 of of IN 40404 3863 4 this this DT 40404 3863 5 area area NN 40404 3863 6 are be VBP 40404 3863 7 known know VBN 40404 3863 8 to to TO 40404 3863 9 be be VB 40404 3863 10 pre pre VBN 40404 3863 11 - - JJ 40404 3863 12 Cambrian cambrian JJ 40404 3863 13 ; ; : 40404 3863 14 for for IN 40404 3863 15 the the DT 40404 3863 16 Cambrian cambrian JJ 40404 3863 17 strata strata NN 40404 3863 18 , , , 40404 3863 19 wherever wherever WRB 40404 3863 20 found find VBN 40404 3863 21 , , , 40404 3863 22 lie lie VB 40404 3863 23 unconformably unconformably RB 40404 3863 24 upon upon IN 40404 3863 25 them -PRON- PRP 40404 3863 26 . . . 40404 3864 1 [ [ -LRB- 40404 3864 2 Illustration illustration NN 40404 3864 3 : : : 40404 3864 4 Fig Fig NNP 40404 3864 5 . . . 40404 3865 1 262 262 CD 40404 3865 2 . . . 40404 3866 1 Ideal Ideal NNP 40404 3866 2 Section Section NNP 40404 3866 3 in in IN 40404 3866 4 the the DT 40404 3866 5 Lake Lake NNP 40404 3866 6 Superior Superior NNP 40404 3866 7 Region Region NNP 40404 3866 8 ] ] -RRB- 40404 3866 9 The the DT 40404 3866 10 general general JJ 40404 3866 11 relations relation NNS 40404 3866 12 of of IN 40404 3866 13 the the DT 40404 3866 14 formations formation NNS 40404 3866 15 of of IN 40404 3866 16 that that DT 40404 3866 17 portion portion NN 40404 3866 18 of of IN 40404 3866 19 the the DT 40404 3866 20 area area NN 40404 3866 21 which which WDT 40404 3866 22 lies lie VBZ 40404 3866 23 about about IN 40404 3866 24 Lake Lake NNP 40404 3866 25 Superior Superior NNP 40404 3866 26 are be VBP 40404 3866 27 shown show VBN 40404 3866 28 in in IN 40404 3866 29 Figure Figure NNP 40404 3866 30 262 262 CD 40404 3866 31 . . . 40404 3867 1 Great great JJ 40404 3867 2 unconformities unconformitie NNS 40404 3867 3 , , , 40404 3867 4 _ _ NNP 40404 3867 5 UU UU NNP 40404 3867 6 ´ ´ NNP 40404 3867 7 _ _ NNP 40404 3867 8 separate separate VBP 40404 3867 9 the the DT 40404 3867 10 Algonkian Algonkian NNP 40404 3867 11 both both DT 40404 3867 12 from from IN 40404 3867 13 the the DT 40404 3867 14 Archean Archean NNP 40404 3867 15 and and CC 40404 3867 16 from from IN 40404 3867 17 the the DT 40404 3867 18 Cambrian Cambrian NNP 40404 3867 19 , , , 40404 3867 20 and and CC 40404 3867 21 divide divide VB 40404 3867 22 it -PRON- PRP 40404 3867 23 into into IN 40404 3867 24 three three CD 40404 3867 25 distinct distinct JJ 40404 3867 26 systems,--the systems,--the DT 40404 3867 27 _ _ NNP 40404 3867 28 Lower Lower NNP 40404 3867 29 Huronian Huronian NNP 40404 3867 30 _ _ NNP 40404 3867 31 , , , 40404 3867 32 the the DT 40404 3867 33 _ _ NNP 40404 3867 34 Upper Upper NNP 40404 3867 35 Huronian Huronian NNP 40404 3867 36 _ _ NNP 40404 3867 37 , , , 40404 3867 38 and and CC 40404 3867 39 the the DT 40404 3867 40 _ _ NNP 40404 3867 41 Keweenawan Keweenawan NNP 40404 3867 42 _ _ NNP 40404 3867 43 . . . 40404 3868 1 The the DT 40404 3868 2 Lower low JJR 40404 3868 3 and and CC 40404 3868 4 the the DT 40404 3868 5 Upper Upper NNP 40404 3868 6 Huronian Huronian NNP 40404 3868 7 consist consist VBP 40404 3868 8 in in IN 40404 3868 9 the the DT 40404 3868 10 main main JJ 40404 3868 11 of of IN 40404 3868 12 old old JJ 40404 3868 13 sea sea NN 40404 3868 14 muds mud NNS 40404 3868 15 and and CC 40404 3868 16 sands sand NNS 40404 3868 17 and and CC 40404 3868 18 limy limy NNP 40404 3868 19 oozes ooze NNS 40404 3868 20 now now RB 40404 3868 21 changed change VBN 40404 3868 22 to to IN 40404 3868 23 gneisses gneiss NNS 40404 3868 24 , , , 40404 3868 25 schists schist NNS 40404 3868 26 , , , 40404 3868 27 marbles marble NNS 40404 3868 28 , , , 40404 3868 29 quartzites quartzite NNS 40404 3868 30 , , , 40404 3868 31 slates slate NNS 40404 3868 32 , , , 40404 3868 33 and and CC 40404 3868 34 other other JJ 40404 3868 35 metamorphic metamorphic JJ 40404 3868 36 rocks rock NNS 40404 3868 37 . . . 40404 3869 1 The the DT 40404 3869 2 Keweenawan Keweenawan NNP 40404 3869 3 is be VBZ 40404 3869 4 composed compose VBN 40404 3869 5 of of IN 40404 3869 6 immense immense JJ 40404 3869 7 piles pile NNS 40404 3869 8 of of IN 40404 3869 9 lava lava NN 40404 3869 10 , , , 40404 3869 11 such such JJ 40404 3869 12 as as IN 40404 3869 13 those those DT 40404 3869 14 of of IN 40404 3869 15 Iceland Iceland NNP 40404 3869 16 , , , 40404 3869 17 overlain overlain NN 40404 3869 18 by by IN 40404 3869 19 bedded bedded NNP 40404 3869 20 sandstones sandstone NNS 40404 3869 21 . . . 40404 3870 1 What what WP 40404 3870 2 remains remain VBZ 40404 3870 3 of of IN 40404 3870 4 these these DT 40404 3870 5 rock rock NN 40404 3870 6 systems system NNS 40404 3870 7 after after IN 40404 3870 8 the the DT 40404 3870 9 denudation denudation NN 40404 3870 10 of of IN 40404 3870 11 all all DT 40404 3870 12 later later JJ 40404 3870 13 geologic geologic JJ 40404 3870 14 ages age NNS 40404 3870 15 is be VBZ 40404 3870 16 enormous enormous JJ 40404 3870 17 . . . 40404 3871 1 The the DT 40404 3871 2 Lower low JJR 40404 3871 3 Huronian Huronian NNP 40404 3871 4 is be VBZ 40404 3871 5 more more JJR 40404 3871 6 than than IN 40404 3871 7 a a DT 40404 3871 8 mile mile NN 40404 3871 9 thick thick JJ 40404 3871 10 , , , 40404 3871 11 the the DT 40404 3871 12 Upper Upper NNP 40404 3871 13 Huronian Huronian NNP 40404 3871 14 more more JJR 40404 3871 15 than than IN 40404 3871 16 two two CD 40404 3871 17 miles mile NNS 40404 3871 18 thick thick JJ 40404 3871 19 , , , 40404 3871 20 while while IN 40404 3871 21 the the DT 40404 3871 22 Keweenawan Keweenawan NNP 40404 3871 23 exceeds exceed VBZ 40404 3871 24 nine nine CD 40404 3871 25 miles mile NNS 40404 3871 26 in in IN 40404 3871 27 thickness thickness NN 40404 3871 28 . . . 40404 3872 1 The the DT 40404 3872 2 vast vast JJ 40404 3872 3 length length NN 40404 3872 4 of of IN 40404 3872 5 Algonkian algonkian JJ 40404 3872 6 time time NN 40404 3872 7 is be VBZ 40404 3872 8 shown show VBN 40404 3872 9 by by IN 40404 3872 10 the the DT 40404 3872 11 thickness thickness NN 40404 3872 12 of of IN 40404 3872 13 its -PRON- PRP$ 40404 3872 14 marine marine JJ 40404 3872 15 deposits deposit NNS 40404 3872 16 and and CC 40404 3872 17 by by IN 40404 3872 18 the the DT 40404 3872 19 cycles cycle NNS 40404 3872 20 of of IN 40404 3872 21 erosion erosion NN 40404 3872 22 which which WDT 40404 3872 23 it -PRON- PRP 40404 3872 24 includes include VBZ 40404 3872 25 . . . 40404 3873 1 In in IN 40404 3873 2 Figure figure NN 40404 3873 3 262 262 CD 40404 3873 4 the the DT 40404 3873 5 student student NN 40404 3873 6 may may MD 40404 3873 7 read read VB 40404 3873 8 an an DT 40404 3873 9 outline outline NN 40404 3873 10 of of IN 40404 3873 11 the the DT 40404 3873 12 history history NN 40404 3873 13 of of IN 40404 3873 14 the the DT 40404 3873 15 Lake Lake NNP 40404 3873 16 Superior Superior NNP 40404 3873 17 region region NN 40404 3873 18 , , , 40404 3873 19 the the DT 40404 3873 20 deformations deformation NNS 40404 3873 21 which which WDT 40404 3873 22 it -PRON- PRP 40404 3873 23 suffered suffer VBD 40404 3873 24 , , , 40404 3873 25 their -PRON- PRP$ 40404 3873 26 relative relative JJ 40404 3873 27 severity severity NN 40404 3873 28 , , , 40404 3873 29 the the DT 40404 3873 30 times time NNS 40404 3873 31 when when WRB 40404 3873 32 they -PRON- PRP 40404 3873 33 occurred occur VBD 40404 3873 34 , , , 40404 3873 35 and and CC 40404 3873 36 the the DT 40404 3873 37 erosion erosion NN 40404 3873 38 cycles cycle NNS 40404 3873 39 marked mark VBN 40404 3873 40 by by IN 40404 3873 41 the the DT 40404 3873 42 successive successive JJ 40404 3873 43 unconformities unconformitie NNS 40404 3873 44 . . . 40404 3874 1 = = NFP 40404 3874 2 Other other JJ 40404 3874 3 pre pre JJ 40404 3874 4 - - JJ 40404 3874 5 Cambrian cambrian JJ 40404 3874 6 areas area NNS 40404 3874 7 in in IN 40404 3874 8 North North NNP 40404 3874 9 America.= America.= NNP 40404 3874 10 Pre pre JJ 40404 3874 11 - - JJ 40404 3874 12 Cambrian cambrian JJ 40404 3874 13 rocks rock NNS 40404 3874 14 are be VBP 40404 3874 15 exposed expose VBN 40404 3874 16 in in IN 40404 3874 17 various various JJ 40404 3874 18 parts part NNS 40404 3874 19 of of IN 40404 3874 20 the the DT 40404 3874 21 continent continent NN 40404 3874 22 , , , 40404 3874 23 usually usually RB 40404 3874 24 by by IN 40404 3874 25 the the DT 40404 3874 26 erosion erosion NN 40404 3874 27 of of IN 40404 3874 28 mountain mountain NN 40404 3874 29 ranges range NNS 40404 3874 30 in in IN 40404 3874 31 which which WDT 40404 3874 32 their -PRON- PRP$ 40404 3874 33 strata stratum NNS 40404 3874 34 were be VBD 40404 3874 35 infolded infolde VBN 40404 3874 36 . . . 40404 3875 1 Large large JJ 40404 3875 2 areas area NNS 40404 3875 3 occur occur VBP 40404 3875 4 in in IN 40404 3875 5 the the DT 40404 3875 6 maritime maritime JJ 40404 3875 7 provinces province NNS 40404 3875 8 of of IN 40404 3875 9 Canada Canada NNP 40404 3875 10 . . . 40404 3876 1 The the DT 40404 3876 2 core core NN 40404 3876 3 of of IN 40404 3876 4 the the DT 40404 3876 5 Green Green NNP 40404 3876 6 Mountains Mountains NNPS 40404 3876 7 of of IN 40404 3876 8 Vermont Vermont NNP 40404 3876 9 is be VBZ 40404 3876 10 pre pre JJ 40404 3876 11 - - JJ 40404 3876 12 Cambrian cambrian JJ 40404 3876 13 , , , 40404 3876 14 and and CC 40404 3876 15 rocks rock NNS 40404 3876 16 of of IN 40404 3876 17 these these DT 40404 3876 18 systems system NNS 40404 3876 19 occur occur VBP 40404 3876 20 in in IN 40404 3876 21 scattered scatter VBN 40404 3876 22 patches patch NNS 40404 3876 23 in in IN 40404 3876 24 western western JJ 40404 3876 25 Massachusetts Massachusetts NNP 40404 3876 26 . . . 40404 3877 1 Here here RB 40404 3877 2 belong belong VBP 40404 3877 3 also also RB 40404 3877 4 the the DT 40404 3877 5 oldest old JJS 40404 3877 6 rocks rock NNS 40404 3877 7 of of IN 40404 3877 8 the the DT 40404 3877 9 Highlands Highlands NNPS 40404 3877 10 of of IN 40404 3877 11 the the DT 40404 3877 12 Hudson Hudson NNP 40404 3877 13 and and CC 40404 3877 14 of of IN 40404 3877 15 New New NNP 40404 3877 16 Jersey Jersey NNP 40404 3877 17 . . . 40404 3878 1 The the DT 40404 3878 2 Adirondack Adirondack NNP 40404 3878 3 region region NN 40404 3878 4 , , , 40404 3878 5 an an DT 40404 3878 6 outlier outlier NN 40404 3878 7 of of IN 40404 3878 8 the the DT 40404 3878 9 Laurentian laurentian JJ 40404 3878 10 region region NN 40404 3878 11 , , , 40404 3878 12 exposes expose VBZ 40404 3878 13 pre pre JJ 40404 3878 14 - - JJ 40404 3878 15 Cambrian cambrian JJ 40404 3878 16 rocks rock NNS 40404 3878 17 , , , 40404 3878 18 which which WDT 40404 3878 19 have have VBP 40404 3878 20 been be VBN 40404 3878 21 metamorphosed metamorphose VBN 40404 3878 22 and and CC 40404 3878 23 tilted tilt VBN 40404 3878 24 by by IN 40404 3878 25 the the DT 40404 3878 26 intrusion intrusion NN 40404 3878 27 of of IN 40404 3878 28 a a DT 40404 3878 29 great great JJ 40404 3878 30 boss boss NN 40404 3878 31 of of IN 40404 3878 32 igneous igneous JJ 40404 3878 33 rock rock NN 40404 3878 34 out out IN 40404 3878 35 of of IN 40404 3878 36 which which WDT 40404 3878 37 the the DT 40404 3878 38 central central JJ 40404 3878 39 peaks peak NNS 40404 3878 40 are be VBP 40404 3878 41 carved carve VBN 40404 3878 42 . . . 40404 3879 1 The the DT 40404 3879 2 core core NN 40404 3879 3 of of IN 40404 3879 4 the the DT 40404 3879 5 Blue Blue NNP 40404 3879 6 Ridge Ridge NNP 40404 3879 7 and and CC 40404 3879 8 probably probably RB 40404 3879 9 much much JJ 40404 3879 10 of of IN 40404 3879 11 the the DT 40404 3879 12 Piedmont Piedmont NNP 40404 3879 13 Belt Belt NNP 40404 3879 14 are be VBP 40404 3879 15 of of IN 40404 3879 16 this this DT 40404 3879 17 age age NN 40404 3879 18 . . . 40404 3880 1 In in IN 40404 3880 2 the the DT 40404 3880 3 Black Black NNP 40404 3880 4 Hills Hills NNPS 40404 3880 5 the the DT 40404 3880 6 irruption irruption NN 40404 3880 7 of of IN 40404 3880 8 an an DT 40404 3880 9 immense immense JJ 40404 3880 10 mass mass NN 40404 3880 11 of of IN 40404 3880 12 granite granite NN 40404 3880 13 has have VBZ 40404 3880 14 caused cause VBN 40404 3880 15 or or CC 40404 3880 16 accompanied accompany VBN 40404 3880 17 the the DT 40404 3880 18 upheaval upheaval NN 40404 3880 19 of of IN 40404 3880 20 pre pre JJ 40404 3880 21 - - JJ 40404 3880 22 Cambrian cambrian JJ 40404 3880 23 strata strata NN 40404 3880 24 and and CC 40404 3880 25 metamorphosed metamorphose VBD 40404 3880 26 them -PRON- PRP 40404 3880 27 by by IN 40404 3880 28 heat heat NN 40404 3880 29 and and CC 40404 3880 30 pressure pressure NN 40404 3880 31 into into IN 40404 3880 32 gneisses gneiss NNS 40404 3880 33 , , , 40404 3880 34 schists schist NNS 40404 3880 35 , , , 40404 3880 36 quartzites quartzite NNS 40404 3880 37 , , , 40404 3880 38 and and CC 40404 3880 39 slates slate NNS 40404 3880 40 . . . 40404 3881 1 In in IN 40404 3881 2 most most JJS 40404 3881 3 of of IN 40404 3881 4 these these DT 40404 3881 5 mountainous mountainous JJ 40404 3881 6 regions region NNS 40404 3881 7 the the DT 40404 3881 8 lowest low JJS 40404 3881 9 strata strata NN 40404 3881 10 are be VBP 40404 3881 11 profoundly profoundly RB 40404 3881 12 changed change VBN 40404 3881 13 by by IN 40404 3881 14 metamorphism metamorphism NN 40404 3881 15 , , , 40404 3881 16 and and CC 40404 3881 17 they -PRON- PRP 40404 3881 18 can can MD 40404 3881 19 be be VB 40404 3881 20 assigned assign VBN 40404 3881 21 to to IN 40404 3881 22 the the DT 40404 3881 23 pre pre JJ 40404 3881 24 - - JJ 40404 3881 25 Cambrian cambrian JJ 40404 3881 26 only only RB 40404 3881 27 where where WRB 40404 3881 28 they -PRON- PRP 40404 3881 29 are be VBP 40404 3881 30 clearly clearly RB 40404 3881 31 overlain overlain JJ 40404 3881 32 unconformably unconformably RB 40404 3881 33 by by IN 40404 3881 34 formations formation NNS 40404 3881 35 proved prove VBN 40404 3881 36 to to TO 40404 3881 37 be be VB 40404 3881 38 Cambrian cambrian JJ 40404 3881 39 by by IN 40404 3881 40 their -PRON- PRP$ 40404 3881 41 fossils fossil NNS 40404 3881 42 . . . 40404 3882 1 In in IN 40404 3882 2 the the DT 40404 3882 3 Belt Belt NNP 40404 3882 4 Mountains Mountains NNPS 40404 3882 5 of of IN 40404 3882 6 Montana Montana NNP 40404 3882 7 , , , 40404 3882 8 however however RB 40404 3882 9 , , , 40404 3882 10 the the DT 40404 3882 11 Cambrian Cambrian NNP 40404 3882 12 is be VBZ 40404 3882 13 underlain underlain JJ 40404 3882 14 by by IN 40404 3882 15 Algonkian Algonkian NNP 40404 3882 16 sediments sediment NNS 40404 3882 17 twelve twelve CD 40404 3882 18 thousand thousand CD 40404 3882 19 feet foot NNS 40404 3882 20 thick thick JJ 40404 3882 21 , , , 40404 3882 22 and and CC 40404 3882 23 but but CC 40404 3882 24 little little JJ 40404 3882 25 altered altered JJ 40404 3882 26 . . . 40404 3883 1 = = NFP 40404 3883 2 Mineral mineral NN 40404 3883 3 wealth wealth NN 40404 3883 4 of of IN 40404 3883 5 the the DT 40404 3883 6 pre pre JJ 40404 3883 7 - - JJ 40404 3883 8 Cambrian cambrian JJ 40404 3883 9 rocks.= rocks.= CD 40404 3883 10 The the DT 40404 3883 11 pre pre JJ 40404 3883 12 - - JJ 40404 3883 13 Cambrian cambrian JJ 40404 3883 14 rocks rock NNS 40404 3883 15 are be VBP 40404 3883 16 of of IN 40404 3883 17 very very RB 40404 3883 18 great great JJ 40404 3883 19 economic economic JJ 40404 3883 20 importance importance NN 40404 3883 21 , , , 40404 3883 22 because because IN 40404 3883 23 of of IN 40404 3883 24 their -PRON- PRP$ 40404 3883 25 extensive extensive JJ 40404 3883 26 metamorphism metamorphism NN 40404 3883 27 and and CC 40404 3883 28 the the DT 40404 3883 29 enormous enormous JJ 40404 3883 30 masses masse NNS 40404 3883 31 of of IN 40404 3883 32 igneous igneous JJ 40404 3883 33 rock rock NN 40404 3883 34 which which WDT 40404 3883 35 they -PRON- PRP 40404 3883 36 involve involve VBP 40404 3883 37 . . . 40404 3884 1 In in IN 40404 3884 2 many many JJ 40404 3884 3 parts part NNS 40404 3884 4 of of IN 40404 3884 5 the the DT 40404 3884 6 country country NN 40404 3884 7 they -PRON- PRP 40404 3884 8 are be VBP 40404 3884 9 the the DT 40404 3884 10 source source NN 40404 3884 11 of of IN 40404 3884 12 supply supply NN 40404 3884 13 of of IN 40404 3884 14 granite granite NN 40404 3884 15 , , , 40404 3884 16 gneiss gneiss NNP 40404 3884 17 , , , 40404 3884 18 marble marble NN 40404 3884 19 , , , 40404 3884 20 slate slate NN 40404 3884 21 , , , 40404 3884 22 and and CC 40404 3884 23 other other JJ 40404 3884 24 such such JJ 40404 3884 25 building building NN 40404 3884 26 materials material NNS 40404 3884 27 . . . 40404 3885 1 Still still RB 40404 3885 2 more more RBR 40404 3885 3 valuable valuable JJ 40404 3885 4 are be VBP 40404 3885 5 the the DT 40404 3885 6 stores store NNS 40404 3885 7 of of IN 40404 3885 8 iron iron NN 40404 3885 9 and and CC 40404 3885 10 copper copper NN 40404 3885 11 and and CC 40404 3885 12 other other JJ 40404 3885 13 metals metal NNS 40404 3885 14 which which WDT 40404 3885 15 they -PRON- PRP 40404 3885 16 contain contain VBP 40404 3885 17 . . . 40404 3886 1 At at IN 40404 3886 2 the the DT 40404 3886 3 present present JJ 40404 3886 4 time time NN 40404 3886 5 the the DT 40404 3886 6 pre pre JJ 40404 3886 7 - - JJ 40404 3886 8 Cambrian cambrian JJ 40404 3886 9 region region NN 40404 3886 10 about about IN 40404 3886 11 Lake Lake NNP 40404 3886 12 Superior Superior NNP 40404 3886 13 leads lead VBZ 40404 3886 14 the the DT 40404 3886 15 world world NN 40404 3886 16 in in IN 40404 3886 17 the the DT 40404 3886 18 production production NN 40404 3886 19 of of IN 40404 3886 20 iron iron NN 40404 3886 21 ore ore NN 40404 3886 22 , , , 40404 3886 23 its -PRON- PRP$ 40404 3886 24 output output NN 40404 3886 25 for for IN 40404 3886 26 1903 1903 CD 40404 3886 27 being be VBG 40404 3886 28 more more JJR 40404 3886 29 than than IN 40404 3886 30 five five CD 40404 3886 31 sevenths seventh NNS 40404 3886 32 of of IN 40404 3886 33 the the DT 40404 3886 34 entire entire JJ 40404 3886 35 output output NN 40404 3886 36 of of IN 40404 3886 37 the the DT 40404 3886 38 whole whole JJ 40404 3886 39 United United NNP 40404 3886 40 States States NNP 40404 3886 41 , , , 40404 3886 42 and and CC 40404 3886 43 exceeding exceed VBG 40404 3886 44 that that DT 40404 3886 45 of of IN 40404 3886 46 any any DT 40404 3886 47 foreign foreign JJ 40404 3886 48 country country NN 40404 3886 49 . . . 40404 3887 1 The the DT 40404 3887 2 ore ore NN 40404 3887 3 bodies body NNS 40404 3887 4 consist consist VBP 40404 3887 5 chiefly chiefly RB 40404 3887 6 of of IN 40404 3887 7 the the DT 40404 3887 8 red red JJ 40404 3887 9 oxide oxide NN 40404 3887 10 of of IN 40404 3887 11 iron iron NN 40404 3887 12 ( ( -LRB- 40404 3887 13 hematite hematite NN 40404 3887 14 ) ) -RRB- 40404 3887 15 and and CC 40404 3887 16 occur occur VB 40404 3887 17 in in IN 40404 3887 18 troughs trough NNS 40404 3887 19 of of IN 40404 3887 20 the the DT 40404 3887 21 strata strata NN 40404 3887 22 , , , 40404 3887 23 underlain underlain JJ 40404 3887 24 by by IN 40404 3887 25 some some DT 40404 3887 26 impervious impervious JJ 40404 3887 27 rock rock NN 40404 3887 28 . . . 40404 3888 1 A a DT 40404 3888 2 theory theory NN 40404 3888 3 held hold VBN 40404 3888 4 by by IN 40404 3888 5 many many JJ 40404 3888 6 refers refer VBZ 40404 3888 7 the the DT 40404 3888 8 ultimate ultimate JJ 40404 3888 9 source source NN 40404 3888 10 of of IN 40404 3888 11 the the DT 40404 3888 12 iron iron NN 40404 3888 13 to to IN 40404 3888 14 the the DT 40404 3888 15 igneous igneous JJ 40404 3888 16 rocks rock NNS 40404 3888 17 of of IN 40404 3888 18 the the DT 40404 3888 19 Archean Archean NNP 40404 3888 20 . . . 40404 3889 1 When when WRB 40404 3889 2 these these DT 40404 3889 3 rocks rock NNS 40404 3889 4 were be VBD 40404 3889 5 upheaved upheave VBN 40404 3889 6 and and CC 40404 3889 7 subjected subject VBN 40404 3889 8 to to IN 40404 3889 9 weathering weather VBG 40404 3889 10 , , , 40404 3889 11 their -PRON- PRP$ 40404 3889 12 iron iron NN 40404 3889 13 compounds compound NNS 40404 3889 14 were be VBD 40404 3889 15 decomposed decompose VBN 40404 3889 16 . . . 40404 3890 1 Their -PRON- PRP$ 40404 3890 2 iron iron NN 40404 3890 3 was be VBD 40404 3890 4 leached leach VBN 40404 3890 5 out out RP 40404 3890 6 and and CC 40404 3890 7 carried carry VBN 40404 3890 8 away away RB 40404 3890 9 to to TO 40404 3890 10 be be VB 40404 3890 11 laid lay VBN 40404 3890 12 in in IN 40404 3890 13 the the DT 40404 3890 14 Algonkian algonkian JJ 40404 3890 15 water water NN 40404 3890 16 bodies body NNS 40404 3890 17 in in IN 40404 3890 18 beds bed NNS 40404 3890 19 of of IN 40404 3890 20 iron iron NN 40404 3890 21 carbonate carbonate NN 40404 3890 22 and and CC 40404 3890 23 other other JJ 40404 3890 24 iron iron NN 40404 3890 25 compounds compound NNS 40404 3890 26 . . . 40404 3891 1 During during IN 40404 3891 2 the the DT 40404 3891 3 later later JJ 40404 3891 4 ages age NNS 40404 3891 5 , , , 40404 3891 6 after after IN 40404 3891 7 the the DT 40404 3891 8 Algonkian algonkian JJ 40404 3891 9 strata strata NN 40404 3891 10 had have VBD 40404 3891 11 been be VBN 40404 3891 12 uplifted uplift VBN 40404 3891 13 to to TO 40404 3891 14 form form VB 40404 3891 15 part part NN 40404 3891 16 of of IN 40404 3891 17 the the DT 40404 3891 18 continent continent NN 40404 3891 19 , , , 40404 3891 20 a a DT 40404 3891 21 second second JJ 40404 3891 22 concentration concentration NN 40404 3891 23 has have VBZ 40404 3891 24 taken take VBN 40404 3891 25 place place NN 40404 3891 26 . . . 40404 3892 1 Descending descend VBG 40404 3892 2 underground underground JJ 40404 3892 3 waters water NNS 40404 3892 4 charged charge VBN 40404 3892 5 with with IN 40404 3892 6 oxygen oxygen NN 40404 3892 7 have have VBP 40404 3892 8 decomposed decompose VBN 40404 3892 9 the the DT 40404 3892 10 iron iron NN 40404 3892 11 carbonate carbonate NN 40404 3892 12 and and CC 40404 3892 13 deposited deposit VBD 40404 3892 14 the the DT 40404 3892 15 iron iron NN 40404 3892 16 , , , 40404 3892 17 in in IN 40404 3892 18 the the DT 40404 3892 19 form form NN 40404 3892 20 of of IN 40404 3892 21 iron iron NN 40404 3892 22 oxide oxide NN 40404 3892 23 , , , 40404 3892 24 in in IN 40404 3892 25 troughs trough NNS 40404 3892 26 of of IN 40404 3892 27 the the DT 40404 3892 28 strata strata NN 40404 3892 29 where where WRB 40404 3892 30 their -PRON- PRP$ 40404 3892 31 downward downward JJ 40404 3892 32 progress progress NN 40404 3892 33 was be VBD 40404 3892 34 arrested arrest VBN 40404 3892 35 by by IN 40404 3892 36 impervious impervious JJ 40404 3892 37 floors floor NNS 40404 3892 38 . . . 40404 3893 1 The the DT 40404 3893 2 pre pre JJ 40404 3893 3 - - JJ 40404 3893 4 Cambrian cambrian JJ 40404 3893 5 rocks rock NNS 40404 3893 6 of of IN 40404 3893 7 the the DT 40404 3893 8 eastern eastern JJ 40404 3893 9 United United NNP 40404 3893 10 States States NNP 40404 3893 11 also also RB 40404 3893 12 are be VBP 40404 3893 13 rich rich JJ 40404 3893 14 in in IN 40404 3893 15 iron iron NN 40404 3893 16 . . . 40404 3894 1 In in IN 40404 3894 2 certain certain JJ 40404 3894 3 districts district NNS 40404 3894 4 , , , 40404 3894 5 as as IN 40404 3894 6 in in IN 40404 3894 7 the the DT 40404 3894 8 Highlands Highlands NNPS 40404 3894 9 of of IN 40404 3894 10 New New NNP 40404 3894 11 Jersey Jersey NNP 40404 3894 12 , , , 40404 3894 13 the the DT 40404 3894 14 black black JJ 40404 3894 15 oxide oxide NN 40404 3894 16 of of IN 40404 3894 17 iron iron NN 40404 3894 18 ( ( -LRB- 40404 3894 19 magnetite magnetite NN 40404 3894 20 ) ) -RRB- 40404 3894 21 is be VBZ 40404 3894 22 so so RB 40404 3894 23 abundant abundant JJ 40404 3894 24 in in IN 40404 3894 25 beds bed NNS 40404 3894 26 and and CC 40404 3894 27 disseminated disseminate VBN 40404 3894 28 grains grain NNS 40404 3894 29 that that IN 40404 3894 30 the the DT 40404 3894 31 ordinary ordinary JJ 40404 3894 32 surveyor surveyor NN 40404 3894 33 's 's POS 40404 3894 34 compass compass NN 40404 3894 35 is be VBZ 40404 3894 36 useless useless JJ 40404 3894 37 . . . 40404 3895 1 The the DT 40404 3895 2 pre pre JJ 40404 3895 3 - - JJ 40404 3895 4 Cambrian cambrian JJ 40404 3895 5 copper copper NN 40404 3895 6 mines mine NNS 40404 3895 7 of of IN 40404 3895 8 the the DT 40404 3895 9 Lake Lake NNP 40404 3895 10 Superior Superior NNP 40404 3895 11 region region NN 40404 3895 12 are be VBP 40404 3895 13 among among IN 40404 3895 14 the the DT 40404 3895 15 richest rich JJS 40404 3895 16 on on IN 40404 3895 17 the the DT 40404 3895 18 globe globe NN 40404 3895 19 . . . 40404 3896 1 In in IN 40404 3896 2 the the DT 40404 3896 3 igneous igneous JJ 40404 3896 4 rocks rock NNS 40404 3896 5 copper copper NN 40404 3896 6 , , , 40404 3896 7 next next JJ 40404 3896 8 to to IN 40404 3896 9 iron iron NN 40404 3896 10 , , , 40404 3896 11 is be VBZ 40404 3896 12 the the DT 40404 3896 13 most most RBS 40404 3896 14 common common JJ 40404 3896 15 of of IN 40404 3896 16 all all PDT 40404 3896 17 the the DT 40404 3896 18 useful useful JJ 40404 3896 19 metals metal NNS 40404 3896 20 , , , 40404 3896 21 and and CC 40404 3896 22 it -PRON- PRP 40404 3896 23 was be VBD 40404 3896 24 especially especially RB 40404 3896 25 abundant abundant JJ 40404 3896 26 in in IN 40404 3896 27 the the DT 40404 3896 28 Keweenawan Keweenawan NNP 40404 3896 29 lavas lavas NN 40404 3896 30 . . . 40404 3897 1 After after IN 40404 3897 2 the the DT 40404 3897 3 Keweenawan Keweenawan NNP 40404 3897 4 was be VBD 40404 3897 5 uplifted uplifted JJ 40404 3897 6 to to TO 40404 3897 7 form form VB 40404 3897 8 land land NN 40404 3897 9 , , , 40404 3897 10 percolating percolate VBG 40404 3897 11 waters water NNS 40404 3897 12 leached leach VBD 40404 3897 13 out out RP 40404 3897 14 much much JJ 40404 3897 15 of of IN 40404 3897 16 the the DT 40404 3897 17 copper copper NN 40404 3897 18 diffused diffuse VBN 40404 3897 19 in in IN 40404 3897 20 the the DT 40404 3897 21 lava lava NN 40404 3897 22 sheets sheet NNS 40404 3897 23 and and CC 40404 3897 24 deposited deposit VBD 40404 3897 25 it -PRON- PRP 40404 3897 26 within within IN 40404 3897 27 steam steam NN 40404 3897 28 blebs blebs NN 40404 3897 29 as as IN 40404 3897 30 amygdules amygdule NNS 40404 3897 31 of of IN 40404 3897 32 native native JJ 40404 3897 33 copper copper NN 40404 3897 34 , , , 40404 3897 35 in in IN 40404 3897 36 cracks crack NNS 40404 3897 37 and and CC 40404 3897 38 fissures fissure NNS 40404 3897 39 , , , 40404 3897 40 and and CC 40404 3897 41 especially especially RB 40404 3897 42 as as IN 40404 3897 43 a a DT 40404 3897 44 cement cement NN 40404 3897 45 , , , 40404 3897 46 or or CC 40404 3897 47 matrix matrix NN 40404 3897 48 , , , 40404 3897 49 in in IN 40404 3897 50 the the DT 40404 3897 51 interbedded interbedde VBN 40404 3897 52 gravels gravel NNS 40404 3897 53 which which WDT 40404 3897 54 formed form VBD 40404 3897 55 the the DT 40404 3897 56 chief chief JJ 40404 3897 57 aquifers aquifer NNS 40404 3897 58 of of IN 40404 3897 59 the the DT 40404 3897 60 region region NN 40404 3897 61 . . . 40404 3898 1 The the DT 40404 3898 2 famous famous JJ 40404 3898 3 Calumet Calumet NNP 40404 3898 4 and and CC 40404 3898 5 Hecla Hecla NNP 40404 3898 6 mine mine NN 40404 3898 7 follows follow VBZ 40404 3898 8 down down RP 40404 3898 9 the the DT 40404 3898 10 dip dip NN 40404 3898 11 of of IN 40404 3898 12 the the DT 40404 3898 13 strata strata NN 40404 3898 14 to to IN 40404 3898 15 the the DT 40404 3898 16 depth depth NN 40404 3898 17 of of IN 40404 3898 18 nearly nearly RB 40404 3898 19 a a DT 40404 3898 20 mile mile NN 40404 3898 21 and and CC 40404 3898 22 works work VBZ 40404 3898 23 such such PDT 40404 3898 24 an an DT 40404 3898 25 ancient ancient JJ 40404 3898 26 conglomerate conglomerate NN 40404 3898 27 whose whose WP$ 40404 3898 28 matrix matrix NN 40404 3898 29 is be VBZ 40404 3898 30 pure pure JJ 40404 3898 31 copper copper NN 40404 3898 32 . . . 40404 3899 1 [ [ -LRB- 40404 3899 2 Illustration illustration NN 40404 3899 3 : : : 40404 3899 4 Fig Fig NNP 40404 3899 5 . . . 40404 3900 1 263 263 CD 40404 3900 2 . . . 40404 3901 1 Successive successive JJ 40404 3901 2 Stages stage NNS 40404 3901 3 in in IN 40404 3901 4 the the DT 40404 3901 5 Development Development NNP 40404 3901 6 of of IN 40404 3901 7 the the DT 40404 3901 8 Ovum Ovum NNP 40404 3901 9 to to IN 40404 3901 10 the the DT 40404 3901 11 Gastrula Gastrula NNP 40404 3901 12 Stage Stage NNP 40404 3901 13 ] ] -RRB- 40404 3901 14 = = NFP 40404 3901 15 The the DT 40404 3901 16 appearance appearance NN 40404 3901 17 of of IN 40404 3901 18 life.= life.= CD 40404 3901 19 Sometime sometime RB 40404 3901 20 during during IN 40404 3901 21 the the DT 40404 3901 22 dim dim JJ 40404 3901 23 ages age NNS 40404 3901 24 preceding precede VBG 40404 3901 25 the the DT 40404 3901 26 Cambrian Cambrian NNP 40404 3901 27 , , , 40404 3901 28 whether whether IN 40404 3901 29 in in IN 40404 3901 30 the the DT 40404 3901 31 Archean Archean NNP 40404 3901 32 or or CC 40404 3901 33 in in IN 40404 3901 34 the the DT 40404 3901 35 Algonkian Algonkian NNP 40404 3901 36 we -PRON- PRP 40404 3901 37 know know VBP 40404 3901 38 not not RB 40404 3901 39 , , , 40404 3901 40 occurred occur VBD 40404 3901 41 one one CD 40404 3901 42 of of IN 40404 3901 43 the the DT 40404 3901 44 most most RBS 40404 3901 45 important important JJ 40404 3901 46 events event NNS 40404 3901 47 in in IN 40404 3901 48 the the DT 40404 3901 49 history history NN 40404 3901 50 of of IN 40404 3901 51 the the DT 40404 3901 52 earth earth NN 40404 3901 53 . . . 40404 3902 1 Life life NN 40404 3902 2 appeared appear VBD 40404 3902 3 for for IN 40404 3902 4 the the DT 40404 3902 5 first first JJ 40404 3902 6 time time NN 40404 3902 7 upon upon IN 40404 3902 8 the the DT 40404 3902 9 planet planet NN 40404 3902 10 . . . 40404 3903 1 Geology geology NN 40404 3903 2 has have VBZ 40404 3903 3 no no DT 40404 3903 4 evidence evidence NN 40404 3903 5 whatever whatever WDT 40404 3903 6 to to TO 40404 3903 7 offer offer VB 40404 3903 8 as as IN 40404 3903 9 to to IN 40404 3903 10 whence whence NN 40404 3903 11 or or CC 40404 3903 12 how how WRB 40404 3903 13 life life NN 40404 3903 14 came come VBD 40404 3903 15 . . . 40404 3904 1 All all DT 40404 3904 2 analogies analogy NNS 40404 3904 3 lead lead VBP 40404 3904 4 us -PRON- PRP 40404 3904 5 to to TO 40404 3904 6 believe believe VB 40404 3904 7 that that IN 40404 3904 8 its -PRON- PRP$ 40404 3904 9 appearance appearance NN 40404 3904 10 must must MD 40404 3904 11 have have VB 40404 3904 12 been be VBN 40404 3904 13 sudden sudden JJ 40404 3904 14 . . . 40404 3905 1 Its -PRON- PRP$ 40404 3905 2 earliest early JJS 40404 3905 3 forms form NNS 40404 3905 4 are be VBP 40404 3905 5 unknown unknown JJ 40404 3905 6 , , , 40404 3905 7 but but CC 40404 3905 8 analogy analogy NN 40404 3905 9 suggests suggest VBZ 40404 3905 10 that that IN 40404 3905 11 as as IN 40404 3905 12 every every DT 40404 3905 13 living live VBG 40404 3905 14 creature creature NN 40404 3905 15 has have VBZ 40404 3905 16 developed develop VBN 40404 3905 17 from from IN 40404 3905 18 a a DT 40404 3905 19 single single JJ 40404 3905 20 cell cell NN 40404 3905 21 , , , 40404 3905 22 so so IN 40404 3905 23 the the DT 40404 3905 24 earliest early JJS 40404 3905 25 organisms organism NNS 40404 3905 26 upon upon IN 40404 3905 27 the the DT 40404 3905 28 globe globe NN 40404 3905 29 -- -- : 40404 3905 30 the the DT 40404 3905 31 germs germ NNS 40404 3905 32 from from IN 40404 3905 33 which which WDT 40404 3905 34 all all DT 40404 3905 35 later later JJ 40404 3905 36 life life NN 40404 3905 37 is be VBZ 40404 3905 38 supposed suppose VBN 40404 3905 39 to to TO 40404 3905 40 have have VB 40404 3905 41 been be VBN 40404 3905 42 evolved evolve VBN 40404 3905 43 -- -- : 40404 3905 44 were be VBD 40404 3905 45 tiny tiny JJ 40404 3905 46 , , , 40404 3905 47 unicellular unicellular JJ 40404 3905 48 masses masse NNS 40404 3905 49 of of IN 40404 3905 50 protoplasm protoplasm NN 40404 3905 51 , , , 40404 3905 52 resembling resemble VBG 40404 3905 53 the the DT 40404 3905 54 amoeba amoeba NN 40404 3905 55 of of IN 40404 3905 56 to to IN 40404 3905 57 - - HYPH 40404 3905 58 day day NN 40404 3905 59 in in IN 40404 3905 60 the the DT 40404 3905 61 simplicity simplicity NN 40404 3905 62 of of IN 40404 3905 63 their -PRON- PRP$ 40404 3905 64 structure structure NN 40404 3905 65 . . . 40404 3906 1 Such such JJ 40404 3906 2 lowly lowly JJ 40404 3906 3 forms form NNS 40404 3906 4 were be VBD 40404 3906 5 destitute destitute JJ 40404 3906 6 of of IN 40404 3906 7 any any DT 40404 3906 8 hard hard JJ 40404 3906 9 parts part NNS 40404 3906 10 and and CC 40404 3906 11 could could MD 40404 3906 12 leave leave VB 40404 3906 13 no no DT 40404 3906 14 evidence evidence NN 40404 3906 15 of of IN 40404 3906 16 their -PRON- PRP$ 40404 3906 17 existence existence NN 40404 3906 18 in in IN 40404 3906 19 the the DT 40404 3906 20 record record NN 40404 3906 21 of of IN 40404 3906 22 the the DT 40404 3906 23 rocks rock NNS 40404 3906 24 . . . 40404 3907 1 And and CC 40404 3907 2 of of IN 40404 3907 3 their -PRON- PRP$ 40404 3907 4 supposed suppose VBN 40404 3907 5 descendants descendant NNS 40404 3907 6 we -PRON- PRP 40404 3907 7 find find VBP 40404 3907 8 so so RB 40404 3907 9 few few JJ 40404 3907 10 traces trace NNS 40404 3907 11 in in IN 40404 3907 12 the the DT 40404 3907 13 pre pre JJ 40404 3907 14 - - JJ 40404 3907 15 Cambrian cambrian JJ 40404 3907 16 strata strata NN 40404 3907 17 that that WDT 40404 3907 18 the the DT 40404 3907 19 first first JJ 40404 3907 20 steps step NNS 40404 3907 21 in in IN 40404 3907 22 organic organic JJ 40404 3907 23 evolution evolution NN 40404 3907 24 must must MD 40404 3907 25 be be VB 40404 3907 26 supplied supply VBN 40404 3907 27 from from IN 40404 3907 28 such such JJ 40404 3907 29 analogies analogy NNS 40404 3907 30 in in IN 40404 3907 31 embryology embryology NN 40404 3907 32 as as IN 40404 3907 33 the the DT 40404 3907 34 following following NN 40404 3907 35 . . . 40404 3908 1 The the DT 40404 3908 2 fertilized fertilize VBN 40404 3908 3 ovum ovum NN 40404 3908 4 , , , 40404 3908 5 the the DT 40404 3908 6 cell cell NN 40404 3908 7 with with IN 40404 3908 8 which which WDT 40404 3908 9 each each DT 40404 3908 10 animal animal NN 40404 3908 11 begins begin VBZ 40404 3908 12 its -PRON- PRP$ 40404 3908 13 life life NN 40404 3908 14 , , , 40404 3908 15 grows grow VBZ 40404 3908 16 and and CC 40404 3908 17 multiplies multiplie NNS 40404 3908 18 by by IN 40404 3908 19 cell cell NN 40404 3908 20 division division NN 40404 3908 21 , , , 40404 3908 22 and and CC 40404 3908 23 develops develop VBZ 40404 3908 24 into into IN 40404 3908 25 a a DT 40404 3908 26 hollow hollow JJ 40404 3908 27 globe globe NN 40404 3908 28 of of IN 40404 3908 29 cells cell NNS 40404 3908 30 called call VBD 40404 3908 31 the the DT 40404 3908 32 _ _ NNP 40404 3908 33 blastosphere blastosphere NN 40404 3908 34 _ _ NNP 40404 3908 35 . . . 40404 3909 1 This this DT 40404 3909 2 stage stage NN 40404 3909 3 is be VBZ 40404 3909 4 succeeded succeed VBN 40404 3909 5 by by IN 40404 3909 6 the the DT 40404 3909 7 stage stage NN 40404 3909 8 of of IN 40404 3909 9 the the DT 40404 3909 10 _ _ NNP 40404 3909 11 gastrula_,--an gastrula_,--an NNS 40404 3909 12 ovoid ovoid JJ 40404 3909 13 or or CC 40404 3909 14 cup cup NN 40404 3909 15 - - HYPH 40404 3909 16 shaped shape VBN 40404 3909 17 body body NN 40404 3909 18 with with IN 40404 3909 19 a a DT 40404 3909 20 double double JJ 40404 3909 21 wall wall NN 40404 3909 22 of of IN 40404 3909 23 cells cell NNS 40404 3909 24 inclosing inclose VBG 40404 3909 25 a a DT 40404 3909 26 body body NN 40404 3909 27 cavity cavity NN 40404 3909 28 , , , 40404 3909 29 and and CC 40404 3909 30 with with IN 40404 3909 31 an an DT 40404 3909 32 opening opening NN 40404 3909 33 , , , 40404 3909 34 the the DT 40404 3909 35 primitive primitive JJ 40404 3909 36 mouth mouth NN 40404 3909 37 . . . 40404 3910 1 Each each DT 40404 3910 2 of of IN 40404 3910 3 these these DT 40404 3910 4 early early JJ 40404 3910 5 embryological embryological JJ 40404 3910 6 stages stage NNS 40404 3910 7 is be VBZ 40404 3910 8 represented represent VBN 40404 3910 9 by by IN 40404 3910 10 living live VBG 40404 3910 11 animals,--the animals,--the DT 40404 3910 12 undivided undivided JJ 40404 3910 13 cell cell NN 40404 3910 14 by by IN 40404 3910 15 the the DT 40404 3910 16 _ _ NNP 40404 3910 17 protozoa protozoa NN 40404 3910 18 _ _ NNP 40404 3910 19 , , , 40404 3910 20 the the DT 40404 3910 21 blastosphere blastosphere NN 40404 3910 22 by by IN 40404 3910 23 some some DT 40404 3910 24 rare rare JJ 40404 3910 25 forms form NNS 40404 3910 26 , , , 40404 3910 27 and and CC 40404 3910 28 the the DT 40404 3910 29 gastrula gastrula NN 40404 3910 30 in in IN 40404 3910 31 the the DT 40404 3910 32 essential essential JJ 40404 3910 33 structure structure NN 40404 3910 34 of of IN 40404 3910 35 the the DT 40404 3910 36 _ _ NNP 40404 3910 37 coelenterates_,--the coelenterates_,--the NNP 40404 3910 38 subkingdom subkingdom NN 40404 3910 39 to to TO 40404 3910 40 which which WDT 40404 3910 41 the the DT 40404 3910 42 fresh fresh JJ 40404 3910 43 - - HYPH 40404 3910 44 water water NN 40404 3910 45 hydra hydra NNS 40404 3910 46 and and CC 40404 3910 47 the the DT 40404 3910 48 corals coral NNS 40404 3910 49 belong belong VBP 40404 3910 50 . . . 40404 3911 1 All all DT 40404 3911 2 forms form NNS 40404 3911 3 of of IN 40404 3911 4 animal animal NN 40404 3911 5 life life NN 40404 3911 6 , , , 40404 3911 7 from from IN 40404 3911 8 the the DT 40404 3911 9 coelenterates coelenterate NNS 40404 3911 10 to to IN 40404 3911 11 the the DT 40404 3911 12 mammals mammal NNS 40404 3911 13 , , , 40404 3911 14 follow follow VB 40404 3911 15 the the DT 40404 3911 16 same same JJ 40404 3911 17 path path NN 40404 3911 18 in in IN 40404 3911 19 their -PRON- PRP$ 40404 3911 20 embryological embryological JJ 40404 3911 21 development development NN 40404 3911 22 as as RB 40404 3911 23 far far RB 40404 3911 24 as as IN 40404 3911 25 the the DT 40404 3911 26 gastrula gastrula JJ 40404 3911 27 stage stage NN 40404 3911 28 , , , 40404 3911 29 but but CC 40404 3911 30 here here RB 40404 3911 31 their -PRON- PRP$ 40404 3911 32 paths path NNS 40404 3911 33 widely widely RB 40404 3911 34 diverge diverge VBP 40404 3911 35 , , , 40404 3911 36 those those DT 40404 3911 37 of of IN 40404 3911 38 each each DT 40404 3911 39 subkingdom subkingdom NN 40404 3911 40 going go VBG 40404 3911 41 their -PRON- PRP$ 40404 3911 42 own own JJ 40404 3911 43 separate separate JJ 40404 3911 44 ways way NNS 40404 3911 45 . . . 40404 3912 1 We -PRON- PRP 40404 3912 2 may may MD 40404 3912 3 infer infer VB 40404 3912 4 , , , 40404 3912 5 therefore therefore RB 40404 3912 6 , , , 40404 3912 7 that that IN 40404 3912 8 during during IN 40404 3912 9 the the DT 40404 3912 10 pre pre JJ 40404 3912 11 - - JJ 40404 3912 12 Cambrian cambrian JJ 40404 3912 13 periods period NNS 40404 3912 14 organic organic JJ 40404 3912 15 evolution evolution NN 40404 3912 16 followed follow VBD 40404 3912 17 the the DT 40404 3912 18 lines line NNS 40404 3912 19 thus thus RB 40404 3912 20 dimly dimly RB 40404 3912 21 traced trace VBN 40404 3912 22 . . . 40404 3913 1 The the DT 40404 3913 2 earliest early JJS 40404 3913 3 one one CD 40404 3913 4 - - HYPH 40404 3913 5 celled celle VBN 40404 3913 6 protozoa protozoa NN 40404 3913 7 were be VBD 40404 3913 8 probably probably RB 40404 3913 9 succeeded succeed VBN 40404 3913 10 by by IN 40404 3913 11 many many JJ 40404 3913 12 - - HYPH 40404 3913 13 celled celle VBN 40404 3913 14 animals animal NNS 40404 3913 15 of of IN 40404 3913 16 the the DT 40404 3913 17 type type NN 40404 3913 18 of of IN 40404 3913 19 the the DT 40404 3913 20 blastosphere blastosphere NN 40404 3913 21 , , , 40404 3913 22 and and CC 40404 3913 23 these these DT 40404 3913 24 by by IN 40404 3913 25 gastrula gastrula JJ 40404 3913 26 - - HYPH 40404 3913 27 like like JJ 40404 3913 28 organisms organism NNS 40404 3913 29 . . . 40404 3914 1 From from IN 40404 3914 2 the the DT 40404 3914 3 gastrula gastrula JJ 40404 3914 4 type type NN 40404 3914 5 the the DT 40404 3914 6 higher high JJR 40404 3914 7 subdivisions subdivision NNS 40404 3914 8 of of IN 40404 3914 9 animal animal NN 40404 3914 10 life life NN 40404 3914 11 probably probably RB 40404 3914 12 diverged diverge VBN 40404 3914 13 , , , 40404 3914 14 as as IN 40404 3914 15 separate separate JJ 40404 3914 16 branches branch NNS 40404 3914 17 from from IN 40404 3914 18 a a DT 40404 3914 19 common common JJ 40404 3914 20 trunk trunk NN 40404 3914 21 . . . 40404 3915 1 Much much JJ 40404 3915 2 or or CC 40404 3915 3 all all DT 40404 3915 4 of of IN 40404 3915 5 this this DT 40404 3915 6 vast vast JJ 40404 3915 7 differentiation differentiation NN 40404 3915 8 was be VBD 40404 3915 9 accomplished accomplish VBN 40404 3915 10 before before IN 40404 3915 11 the the DT 40404 3915 12 opening opening NN 40404 3915 13 of of IN 40404 3915 14 the the DT 40404 3915 15 next next JJ 40404 3915 16 era era NN 40404 3915 17 ; ; : 40404 3915 18 for for IN 40404 3915 19 all all PDT 40404 3915 20 the the DT 40404 3915 21 subkingdoms subkingdom NNS 40404 3915 22 are be VBP 40404 3915 23 represented represent VBN 40404 3915 24 in in IN 40404 3915 25 the the DT 40404 3915 26 Cambrian Cambrian NNP 40404 3915 27 except except IN 40404 3915 28 the the DT 40404 3915 29 vertebrates vertebrate NNS 40404 3915 30 . . . 40404 3916 1 = = NFP 40404 3916 2 Evidences evidence NNS 40404 3916 3 of of IN 40404 3916 4 pre pre JJ 40404 3916 5 - - JJ 40404 3916 6 Cambrian cambrian JJ 40404 3916 7 life.= life.= NNS 40404 3916 8 An an DT 40404 3916 9 indirect indirect JJ 40404 3916 10 evidence evidence NN 40404 3916 11 of of IN 40404 3916 12 life life NN 40404 3916 13 during during IN 40404 3916 14 the the DT 40404 3916 15 pre pre JJ 40404 3916 16 - - JJ 40404 3916 17 Cambrian cambrian JJ 40404 3916 18 periods period NNS 40404 3916 19 is be VBZ 40404 3916 20 found find VBN 40404 3916 21 in in IN 40404 3916 22 the the DT 40404 3916 23 abundant abundant JJ 40404 3916 24 and and CC 40404 3916 25 varied varied JJ 40404 3916 26 fauna fauna NNS 40404 3916 27 of of IN 40404 3916 28 the the DT 40404 3916 29 next next JJ 40404 3916 30 period period NN 40404 3916 31 ; ; : 40404 3916 32 for for IN 40404 3916 33 , , , 40404 3916 34 if if IN 40404 3916 35 the the DT 40404 3916 36 theory theory NN 40404 3916 37 of of IN 40404 3916 38 evolution evolution NN 40404 3916 39 is be VBZ 40404 3916 40 correct correct JJ 40404 3916 41 , , , 40404 3916 42 the the DT 40404 3916 43 differentiation differentiation NN 40404 3916 44 of of IN 40404 3916 45 the the DT 40404 3916 46 Cambrian cambrian JJ 40404 3916 47 fauna fauna NNS 40404 3916 48 was be VBD 40404 3916 49 a a DT 40404 3916 50 long long JJ 40404 3916 51 process process NN 40404 3916 52 which which WDT 40404 3916 53 might may MD 40404 3916 54 well well RB 40404 3916 55 have have VB 40404 3916 56 required require VBN 40404 3916 57 for for IN 40404 3916 58 its -PRON- PRP$ 40404 3916 59 accomplishment accomplishment NN 40404 3916 60 a a DT 40404 3916 61 large large JJ 40404 3916 62 part part NN 40404 3916 63 of of IN 40404 3916 64 pre pre JJ 40404 3916 65 - - JJ 40404 3916 66 Cambrian cambrian JJ 40404 3916 67 time time NN 40404 3916 68 . . . 40404 3917 1 Other other JJ 40404 3917 2 indirect indirect JJ 40404 3917 3 evidences evidence NNS 40404 3917 4 are be VBP 40404 3917 5 the the DT 40404 3917 6 pre pre JJ 40404 3917 7 - - JJ 40404 3917 8 Cambrian cambrian JJ 40404 3917 9 limestones limestone NNS 40404 3917 10 , , , 40404 3917 11 iron iron NN 40404 3917 12 ores ore NNS 40404 3917 13 , , , 40404 3917 14 and and CC 40404 3917 15 graphite graphite NN 40404 3917 16 deposits deposit NNS 40404 3917 17 , , , 40404 3917 18 since since IN 40404 3917 19 such such JJ 40404 3917 20 minerals mineral NNS 40404 3917 21 and and CC 40404 3917 22 rocks rock NNS 40404 3917 23 have have VBP 40404 3917 24 been be VBN 40404 3917 25 formed form VBN 40404 3917 26 in in IN 40404 3917 27 later later JJ 40404 3917 28 times time NNS 40404 3917 29 by by IN 40404 3917 30 the the DT 40404 3917 31 help help NN 40404 3917 32 of of IN 40404 3917 33 organisms organism NNS 40404 3917 34 . . . 40404 3918 1 If if IN 40404 3918 2 the the DT 40404 3918 3 carbonate carbonate NN 40404 3918 4 of of IN 40404 3918 5 lime lime NN 40404 3918 6 of of IN 40404 3918 7 the the DT 40404 3918 8 Algonkian algonkian JJ 40404 3918 9 limestones limestone NNS 40404 3918 10 and and CC 40404 3918 11 marbles marble NNS 40404 3918 12 was be VBD 40404 3918 13 extracted extract VBN 40404 3918 14 from from IN 40404 3918 15 sea sea NN 40404 3918 16 water water NN 40404 3918 17 by by IN 40404 3918 18 organisms organism NNS 40404 3918 19 , , , 40404 3918 20 as as IN 40404 3918 21 is be VBZ 40404 3918 22 done do VBN 40404 3918 23 at at IN 40404 3918 24 present present JJ 40404 3918 25 by by IN 40404 3918 26 corals coral NNS 40404 3918 27 , , , 40404 3918 28 mollusks mollusk NNS 40404 3918 29 , , , 40404 3918 30 and and CC 40404 3918 31 other other JJ 40404 3918 32 humble humble JJ 40404 3918 33 animals animal NNS 40404 3918 34 and and CC 40404 3918 35 plants plant NNS 40404 3918 36 , , , 40404 3918 37 the the DT 40404 3918 38 life life NN 40404 3918 39 of of IN 40404 3918 40 those those DT 40404 3918 41 ancient ancient JJ 40404 3918 42 seas sea NNS 40404 3918 43 must must MD 40404 3918 44 have have VB 40404 3918 45 been be VBN 40404 3918 46 abundant abundant JJ 40404 3918 47 . . . 40404 3919 1 Graphite Graphite NNP 40404 3919 2 , , , 40404 3919 3 a a DT 40404 3919 4 soft soft JJ 40404 3919 5 black black JJ 40404 3919 6 mineral mineral NN 40404 3919 7 composed compose VBN 40404 3919 8 of of IN 40404 3919 9 carbon carbon NN 40404 3919 10 and and CC 40404 3919 11 used use VBN 40404 3919 12 in in IN 40404 3919 13 the the DT 40404 3919 14 manufacture manufacture NN 40404 3919 15 of of IN 40404 3919 16 lead lead JJ 40404 3919 17 pencils pencil NNS 40404 3919 18 and and CC 40404 3919 19 as as IN 40404 3919 20 a a DT 40404 3919 21 lubricant lubricant NN 40404 3919 22 , , , 40404 3919 23 occurs occur VBZ 40404 3919 24 widely widely RB 40404 3919 25 in in IN 40404 3919 26 the the DT 40404 3919 27 metamorphic metamorphic JJ 40404 3919 28 pre pre JJ 40404 3919 29 - - JJ 40404 3919 30 Cambrian cambrian JJ 40404 3919 31 rocks rock NNS 40404 3919 32 . . . 40404 3920 1 It -PRON- PRP 40404 3920 2 is be VBZ 40404 3920 3 known know VBN 40404 3920 4 to to TO 40404 3920 5 be be VB 40404 3920 6 produced produce VBN 40404 3920 7 in in IN 40404 3920 8 some some DT 40404 3920 9 cases case NNS 40404 3920 10 by by IN 40404 3920 11 the the DT 40404 3920 12 metamorphism metamorphism NN 40404 3920 13 of of IN 40404 3920 14 coal coal NN 40404 3920 15 , , , 40404 3920 16 which which WDT 40404 3920 17 itself -PRON- PRP 40404 3920 18 is be VBZ 40404 3920 19 formed form VBN 40404 3920 20 of of IN 40404 3920 21 decomposed decompose VBN 40404 3920 22 vegetal vegetal JJ 40404 3920 23 tissues tissue NNS 40404 3920 24 . . . 40404 3921 1 Seams seam NNS 40404 3921 2 of of IN 40404 3921 3 graphite graphite NN 40404 3921 4 may may MD 40404 3921 5 therefore therefore RB 40404 3921 6 represent represent VB 40404 3921 7 accumulations accumulation NNS 40404 3921 8 of of IN 40404 3921 9 vegetal vegetal JJ 40404 3921 10 matter matter NN 40404 3921 11 such such JJ 40404 3921 12 as as IN 40404 3921 13 seaweed seaweed NN 40404 3921 14 . . . 40404 3922 1 But but CC 40404 3922 2 limestone limestone NN 40404 3922 3 , , , 40404 3922 4 iron iron NN 40404 3922 5 ores ore NNS 40404 3922 6 , , , 40404 3922 7 and and CC 40404 3922 8 graphite graphite NN 40404 3922 9 can can MD 40404 3922 10 be be VB 40404 3922 11 produced produce VBN 40404 3922 12 by by IN 40404 3922 13 chemical chemical NN 40404 3922 14 processes process NNS 40404 3922 15 , , , 40404 3922 16 and and CC 40404 3922 17 their -PRON- PRP$ 40404 3922 18 presence presence NN 40404 3922 19 in in IN 40404 3922 20 the the DT 40404 3922 21 pre pre JJ 40404 3922 22 - - JJ 40404 3922 23 Cambrian cambrian JJ 40404 3922 24 makes make VBZ 40404 3922 25 it -PRON- PRP 40404 3922 26 only only RB 40404 3922 27 probable probable JJ 40404 3922 28 , , , 40404 3922 29 and and CC 40404 3922 30 not not RB 40404 3922 31 certain certain JJ 40404 3922 32 , , , 40404 3922 33 that that DT 40404 3922 34 life life NN 40404 3922 35 existed exist VBD 40404 3922 36 at at IN 40404 3922 37 that that DT 40404 3922 38 time time NN 40404 3922 39 . . . 40404 3923 1 = = NFP 40404 3923 2 Pre pre JJ 40404 3923 3 - - JJ 40404 3923 4 Cambrian cambrian JJ 40404 3923 5 fossils.= fossils.= CD 40404 3923 6 Very very RB 40404 3923 7 rarely rarely RB 40404 3923 8 has have VBZ 40404 3923 9 any any DT 40404 3923 10 clear clear JJ 40404 3923 11 trace trace NN 40404 3923 12 of of IN 40404 3923 13 an an DT 40404 3923 14 organism organism NN 40404 3923 15 been be VBN 40404 3923 16 found find VBN 40404 3923 17 in in IN 40404 3923 18 the the DT 40404 3923 19 most most RBS 40404 3923 20 ancient ancient JJ 40404 3923 21 chapters chapter NNS 40404 3923 22 of of IN 40404 3923 23 the the DT 40404 3923 24 geological geological JJ 40404 3923 25 record record NN 40404 3923 26 , , , 40404 3923 27 so so RB 40404 3923 28 many many JJ 40404 3923 29 of of IN 40404 3923 30 their -PRON- PRP$ 40404 3923 31 leaves leave NNS 40404 3923 32 have have VBP 40404 3923 33 been be VBN 40404 3923 34 destroyed destroy VBN 40404 3923 35 and and CC 40404 3923 36 so so RB 40404 3923 37 far far RB 40404 3923 38 have have VBP 40404 3923 39 their -PRON- PRP$ 40404 3923 40 pages page NNS 40404 3923 41 been be VBN 40404 3923 42 defaced deface VBN 40404 3923 43 . . . 40404 3924 1 Omitting omit VBG 40404 3924 2 structures structure NNS 40404 3924 3 whose whose WP$ 40404 3924 4 organic organic JJ 40404 3924 5 nature nature NN 40404 3924 6 has have VBZ 40404 3924 7 been be VBN 40404 3924 8 questioned question VBN 40404 3924 9 , , , 40404 3924 10 there there EX 40404 3924 11 are be VBP 40404 3924 12 left leave VBN 40404 3924 13 to to TO 40404 3924 14 mention mention VB 40404 3924 15 a a DT 40404 3924 16 tiny tiny JJ 40404 3924 17 seashell seashell NN 40404 3924 18 of of IN 40404 3924 19 one one CD 40404 3924 20 of of IN 40404 3924 21 the the DT 40404 3924 22 most most RBS 40404 3924 23 lowly lowly JJ 40404 3924 24 types,--a types,--a NNP 40404 3924 25 _ _ NNP 40404 3924 26 Discina Discina NNP 40404 3924 27 _ _ NNP 40404 3924 28 from from IN 40404 3924 29 the the DT 40404 3924 30 pre pre JJ 40404 3924 31 - - JJ 40404 3924 32 Cambrian cambrian JJ 40404 3924 33 rocks rock NNS 40404 3924 34 of of IN 40404 3924 35 the the DT 40404 3924 36 Colorado Colorado NNP 40404 3924 37 Canyon,--and Canyon,--and NNP 40404 3924 38 from from IN 40404 3924 39 the the DT 40404 3924 40 pre pre JJ 40404 3924 41 - - JJ 40404 3924 42 Cambrian cambrian JJ 40404 3924 43 rocks rock NNS 40404 3924 44 of of IN 40404 3924 45 Montana Montana NNP 40404 3924 46 trails trail NNS 40404 3924 47 of of IN 40404 3924 48 annelid annelid JJ 40404 3924 49 worms worm NNS 40404 3924 50 and and CC 40404 3924 51 casts cast NNS 40404 3924 52 of of IN 40404 3924 53 their -PRON- PRP$ 40404 3924 54 burrows burrow NNS 40404 3924 55 in in IN 40404 3924 56 ancient ancient JJ 40404 3924 57 beaches beach NNS 40404 3924 58 , , , 40404 3924 59 and and CC 40404 3924 60 fragments fragment NNS 40404 3924 61 of of IN 40404 3924 62 the the DT 40404 3924 63 tests test NNS 40404 3924 64 of of IN 40404 3924 65 crustaceans crustacean NNS 40404 3924 66 . . . 40404 3925 1 These these DT 40404 3925 2 diverse diverse JJ 40404 3925 3 forms form NNS 40404 3925 4 indicate indicate VBP 40404 3925 5 that that IN 40404 3925 6 before before IN 40404 3925 7 the the DT 40404 3925 8 Algonkian Algonkian NNP 40404 3925 9 had have VBD 40404 3925 10 closed close VBN 40404 3925 11 , , , 40404 3925 12 life life NN 40404 3925 13 was be VBD 40404 3925 14 abundant abundant JJ 40404 3925 15 and and CC 40404 3925 16 had have VBD 40404 3925 17 widely widely RB 40404 3925 18 differentiated differentiate VBN 40404 3925 19 . . . 40404 3926 1 We -PRON- PRP 40404 3926 2 may may MD 40404 3926 3 expect expect VB 40404 3926 4 that that IN 40404 3926 5 other other JJ 40404 3926 6 forms form NNS 40404 3926 7 will will MD 40404 3926 8 be be VB 40404 3926 9 discovered discover VBN 40404 3926 10 as as IN 40404 3926 11 the the DT 40404 3926 12 rocks rock NNS 40404 3926 13 are be VBP 40404 3926 14 closely closely RB 40404 3926 15 searched search VBN 40404 3926 16 . . . 40404 3927 1 = = NFP 40404 3927 2 Pre pre JJ 40404 3927 3 - - JJ 40404 3927 4 Cambrian cambrian JJ 40404 3927 5 geography.= geography.= NNS 40404 3927 6 Our -PRON- PRP$ 40404 3927 7 knowledge knowledge NN 40404 3927 8 is be VBZ 40404 3927 9 far far RB 40404 3927 10 too too RB 40404 3927 11 meager meager JJ 40404 3927 12 to to TO 40404 3927 13 warrant warrant VB 40404 3927 14 an an DT 40404 3927 15 attempt attempt NN 40404 3927 16 to to TO 40404 3927 17 draw draw VB 40404 3927 18 the the DT 40404 3927 19 varying varying NN 40404 3927 20 outlines outline NNS 40404 3927 21 of of IN 40404 3927 22 sea sea NN 40404 3927 23 and and CC 40404 3927 24 land land NN 40404 3927 25 during during IN 40404 3927 26 the the DT 40404 3927 27 Archean Archean NNP 40404 3927 28 and and CC 40404 3927 29 Algonkian algonkian JJ 40404 3927 30 eras era NNS 40404 3927 31 . . . 40404 3928 1 Pre pre JJ 40404 3928 2 - - JJ 40404 3928 3 Cambrian cambrian JJ 40404 3928 4 time time NN 40404 3928 5 probably probably RB 40404 3928 6 was be VBD 40404 3928 7 longer long JJR 40404 3928 8 than than IN 40404 3928 9 all all DT 40404 3928 10 later later RB 40404 3928 11 geological geological JJ 40404 3928 12 time time NN 40404 3928 13 down down RB 40404 3928 14 to to IN 40404 3928 15 the the DT 40404 3928 16 present present NN 40404 3928 17 , , , 40404 3928 18 as as IN 40404 3928 19 we -PRON- PRP 40404 3928 20 may may MD 40404 3928 21 infer infer VB 40404 3928 22 from from IN 40404 3928 23 the the DT 40404 3928 24 vast vast JJ 40404 3928 25 thicknesses thickness NNS 40404 3928 26 of of IN 40404 3928 27 its -PRON- PRP$ 40404 3928 28 rocks rock NNS 40404 3928 29 and and CC 40404 3928 30 the the DT 40404 3928 31 unconformities unconformitie NNS 40404 3928 32 which which WDT 40404 3928 33 part part VBP 40404 3928 34 them -PRON- PRP 40404 3928 35 . . . 40404 3929 1 We -PRON- PRP 40404 3929 2 know know VBP 40404 3929 3 that that IN 40404 3929 4 during during IN 40404 3929 5 its -PRON- PRP$ 40404 3929 6 long long JJ 40404 3929 7 periods period NNS 40404 3929 8 land land NN 40404 3929 9 masses masse NNS 40404 3929 10 again again RB 40404 3929 11 and and CC 40404 3929 12 again again RB 40404 3929 13 rose rise VBD 40404 3929 14 from from IN 40404 3929 15 the the DT 40404 3929 16 sea sea NN 40404 3929 17 , , , 40404 3929 18 were be VBD 40404 3929 19 worn wear VBN 40404 3929 20 low low JJ 40404 3929 21 , , , 40404 3929 22 and and CC 40404 3929 23 were be VBD 40404 3929 24 submerged submerge VBN 40404 3929 25 and and CC 40404 3929 26 covered cover VBN 40404 3929 27 with with IN 40404 3929 28 the the DT 40404 3929 29 waste waste NN 40404 3929 30 of of IN 40404 3929 31 other other JJ 40404 3929 32 lands land NNS 40404 3929 33 . . . 40404 3930 1 But but CC 40404 3930 2 the the DT 40404 3930 3 formations formation NNS 40404 3930 4 of of IN 40404 3930 5 separated separated JJ 40404 3930 6 regions region NNS 40404 3930 7 can can MD 40404 3930 8 not not RB 40404 3930 9 be be VB 40404 3930 10 correlated correlate VBN 40404 3930 11 because because IN 40404 3930 12 of of IN 40404 3930 13 the the DT 40404 3930 14 absence absence NN 40404 3930 15 of of IN 40404 3930 16 fossils fossil NNS 40404 3930 17 , , , 40404 3930 18 and and CC 40404 3930 19 nothing nothing NN 40404 3930 20 more more JJR 40404 3930 21 can can MD 40404 3930 22 be be VB 40404 3930 23 made make VBN 40404 3930 24 out out RP 40404 3930 25 than than IN 40404 3930 26 the the DT 40404 3930 27 detached detached JJ 40404 3930 28 chapters chapter NNS 40404 3930 29 of of IN 40404 3930 30 local local JJ 40404 3930 31 histories history NNS 40404 3930 32 , , , 40404 3930 33 such such JJ 40404 3930 34 as as IN 40404 3930 35 the the DT 40404 3930 36 outline outline NN 40404 3930 37 given give VBN 40404 3930 38 of of IN 40404 3930 39 the the DT 40404 3930 40 district district NN 40404 3930 41 about about IN 40404 3930 42 Lake Lake NNP 40404 3930 43 Superior Superior NNP 40404 3930 44 . . . 40404 3931 1 The the DT 40404 3931 2 pre pre JJ 40404 3931 3 - - JJ 40404 3931 4 Cambrian cambrian JJ 40404 3931 5 rocks rock NNS 40404 3931 6 show show VBP 40404 3931 7 no no DT 40404 3931 8 evidence evidence NN 40404 3931 9 of of IN 40404 3931 10 any any DT 40404 3931 11 forces force NNS 40404 3931 12 then then RB 40404 3931 13 at at IN 40404 3931 14 work work NN 40404 3931 15 upon upon IN 40404 3931 16 the the DT 40404 3931 17 earth earth NN 40404 3931 18 except except IN 40404 3931 19 the the DT 40404 3931 20 forces force NNS 40404 3931 21 which which WDT 40404 3931 22 are be VBP 40404 3931 23 at at IN 40404 3931 24 work work NN 40404 3931 25 upon upon IN 40404 3931 26 it -PRON- PRP 40404 3931 27 now now RB 40404 3931 28 . . . 40404 3932 1 The the DT 40404 3932 2 most most RBS 40404 3932 3 ancient ancient JJ 40404 3932 4 sediments sediment NNS 40404 3932 5 known know VBN 40404 3932 6 are be VBP 40404 3932 7 so so RB 40404 3932 8 like like IN 40404 3932 9 the the DT 40404 3932 10 sediments sediment NNS 40404 3932 11 now now RB 40404 3932 12 being be VBG 40404 3932 13 laid lay VBN 40404 3932 14 that that IN 40404 3932 15 we -PRON- PRP 40404 3932 16 may may MD 40404 3932 17 infer infer VB 40404 3932 18 that that IN 40404 3932 19 they -PRON- PRP 40404 3932 20 were be VBD 40404 3932 21 formed form VBN 40404 3932 22 under under IN 40404 3932 23 conditions condition NNS 40404 3932 24 essentially essentially RB 40404 3932 25 similar similar JJ 40404 3932 26 to to IN 40404 3932 27 those those DT 40404 3932 28 of of IN 40404 3932 29 the the DT 40404 3932 30 present present JJ 40404 3932 31 time time NN 40404 3932 32 . . . 40404 3933 1 There there EX 40404 3933 2 is be VBZ 40404 3933 3 no no DT 40404 3933 4 proof proof NN 40404 3933 5 that that IN 40404 3933 6 the the DT 40404 3933 7 sands sand NNS 40404 3933 8 of of IN 40404 3933 9 the the DT 40404 3933 10 pre pre JJ 40404 3933 11 - - JJ 40404 3933 12 Cambrian cambrian JJ 40404 3933 13 sandstones sandstone NNS 40404 3933 14 were be VBD 40404 3933 15 swept sweep VBN 40404 3933 16 by by IN 40404 3933 17 any any DT 40404 3933 18 more more RBR 40404 3933 19 powerful powerful JJ 40404 3933 20 waves wave NNS 40404 3933 21 and and CC 40404 3933 22 currents current NNS 40404 3933 23 than than IN 40404 3933 24 are be VBP 40404 3933 25 offshore offshore JJ 40404 3933 26 sands sand NNS 40404 3933 27 to to IN 40404 3933 28 - - HYPH 40404 3933 29 day day NN 40404 3933 30 , , , 40404 3933 31 or or CC 40404 3933 32 that that IN 40404 3933 33 the the DT 40404 3933 34 muds mud NNS 40404 3933 35 of of IN 40404 3933 36 the the DT 40404 3933 37 pre pre JJ 40404 3933 38 - - JJ 40404 3933 39 Cambrian cambrian JJ 40404 3933 40 shales shale NNS 40404 3933 41 settled settle VBN 40404 3933 42 to to IN 40404 3933 43 the the DT 40404 3933 44 sea sea NN 40404 3933 45 floor floor NN 40404 3933 46 in in IN 40404 3933 47 less less RBR 40404 3933 48 quiet quiet JJ 40404 3933 49 water water NN 40404 3933 50 than than IN 40404 3933 51 such such JJ 40404 3933 52 muds mud NNS 40404 3933 53 settle settle VBP 40404 3933 54 in in RB 40404 3933 55 at at IN 40404 3933 56 present present NN 40404 3933 57 . . . 40404 3934 1 The the DT 40404 3934 2 pre pre JJ 40404 3934 3 - - JJ 40404 3934 4 Cambrian cambrian JJ 40404 3934 5 lands land NNS 40404 3934 6 were be VBD 40404 3934 7 , , , 40404 3934 8 no no RB 40404 3934 9 doubt doubt RB 40404 3934 10 , , , 40404 3934 11 worn wear VBN 40404 3934 12 by by IN 40404 3934 13 wind wind NN 40404 3934 14 and and CC 40404 3934 15 weather weather NN 40404 3934 16 , , , 40404 3934 17 beaten beat VBN 40404 3934 18 by by IN 40404 3934 19 rain rain NN 40404 3934 20 , , , 40404 3934 21 and and CC 40404 3934 22 furrowed furrow VBN 40404 3934 23 by by IN 40404 3934 24 streams stream NNS 40404 3934 25 as as IN 40404 3934 26 now now RB 40404 3934 27 , , , 40404 3934 28 and and CC 40404 3934 29 , , , 40404 3934 30 as as RB 40404 3934 31 now now RB 40404 3934 32 , , , 40404 3934 33 they -PRON- PRP 40404 3934 34 fronted front VBD 40404 3934 35 the the DT 40404 3934 36 ocean ocean NN 40404 3934 37 with with IN 40404 3934 38 beaches beach NNS 40404 3934 39 on on IN 40404 3934 40 which which WDT 40404 3934 41 waves wave NNS 40404 3934 42 dashed dash VBD 40404 3934 43 and and CC 40404 3934 44 along along IN 40404 3934 45 which which WDT 40404 3934 46 tidal tidal JJ 40404 3934 47 currents current NNS 40404 3934 48 ran run VBD 40404 3934 49 . . . 40404 3935 1 Perhaps perhaps RB 40404 3935 2 the the DT 40404 3935 3 chief chief JJ 40404 3935 4 difference difference NN 40404 3935 5 between between IN 40404 3935 6 the the DT 40404 3935 7 pre pre JJ 40404 3935 8 - - JJ 40404 3935 9 Cambrian cambrian JJ 40404 3935 10 and and CC 40404 3935 11 the the DT 40404 3935 12 present present NN 40404 3935 13 was be VBD 40404 3935 14 the the DT 40404 3935 15 absence absence NN 40404 3935 16 of of IN 40404 3935 17 life life NN 40404 3935 18 upon upon IN 40404 3935 19 the the DT 40404 3935 20 land land NN 40404 3935 21 . . . 40404 3936 1 So so RB 40404 3936 2 far far RB 40404 3936 3 as as IN 40404 3936 4 we -PRON- PRP 40404 3936 5 have have VBP 40404 3936 6 any any DT 40404 3936 7 knowledge knowledge NN 40404 3936 8 , , , 40404 3936 9 no no DT 40404 3936 10 forests forest NNS 40404 3936 11 covered cover VBD 40404 3936 12 the the DT 40404 3936 13 mountain mountain NN 40404 3936 14 sides side NNS 40404 3936 15 , , , 40404 3936 16 no no DT 40404 3936 17 verdure verdure NN 40404 3936 18 carpeted carpet VBD 40404 3936 19 the the DT 40404 3936 20 plains plain NNS 40404 3936 21 , , , 40404 3936 22 and and CC 40404 3936 23 no no DT 40404 3936 24 animals animal NNS 40404 3936 25 lived live VBD 40404 3936 26 on on IN 40404 3936 27 the the DT 40404 3936 28 ground ground NN 40404 3936 29 or or CC 40404 3936 30 in in IN 40404 3936 31 the the DT 40404 3936 32 air air NN 40404 3936 33 . . . 40404 3937 1 It -PRON- PRP 40404 3937 2 is be VBZ 40404 3937 3 permitted permit VBN 40404 3937 4 to to TO 40404 3937 5 think think VB 40404 3937 6 of of IN 40404 3937 7 the the DT 40404 3937 8 most most RBS 40404 3937 9 ancient ancient JJ 40404 3937 10 lands land NNS 40404 3937 11 as as IN 40404 3937 12 deserts desert NNS 40404 3937 13 of of IN 40404 3937 14 barren barren JJ 40404 3937 15 rock rock NN 40404 3937 16 and and CC 40404 3937 17 rock rock NN 40404 3937 18 waste waste NN 40404 3937 19 swept sweep VBN 40404 3937 20 by by IN 40404 3937 21 rains rain NNS 40404 3937 22 and and CC 40404 3937 23 trenched trench VBN 40404 3937 24 by by IN 40404 3937 25 powerful powerful JJ 40404 3937 26 streams stream NNS 40404 3937 27 . . . 40404 3938 1 We -PRON- PRP 40404 3938 2 may may MD 40404 3938 3 therefore therefore RB 40404 3938 4 suppose suppose VB 40404 3938 5 that that IN 40404 3938 6 the the DT 40404 3938 7 processes process NNS 40404 3938 8 of of IN 40404 3938 9 their -PRON- PRP$ 40404 3938 10 destruction destruction NN 40404 3938 11 went go VBD 40404 3938 12 on on RP 40404 3938 13 more more RBR 40404 3938 14 rapidly rapidly RB 40404 3938 15 than than IN 40404 3938 16 at at IN 40404 3938 17 present present NN 40404 3938 18 . . . 40404 3939 1 CHAPTER chapter NN 40404 3939 2 XVI XVI NNP 40404 3939 3 THE the DT 40404 3939 4 CAMBRIAN cambrian NN 40404 3939 5 = = NFP 40404 3939 6 The the DT 40404 3939 7 Paleozoic Paleozoic NNP 40404 3939 8 era.= era.= NN 40404 3939 9 The the DT 40404 3939 10 second second JJ 40404 3939 11 volume volume NN 40404 3939 12 of of IN 40404 3939 13 the the DT 40404 3939 14 geological geological JJ 40404 3939 15 record record NN 40404 3939 16 , , , 40404 3939 17 called call VBN 40404 3939 18 the the DT 40404 3939 19 Paleozoic Paleozoic NNP 40404 3939 20 ( ( -LRB- 40404 3939 21 Greek Greek NNP 40404 3939 22 , , , 40404 3939 23 _ _ NNP 40404 3939 24 palaios palaio NNS 40404 3939 25 _ _ NNP 40404 3939 26 , , , 40404 3939 27 ancient ancient JJ 40404 3939 28 ; ; : 40404 3939 29 _ _ NNP 40404 3939 30 zoe zoe NNP 40404 3939 31 _ _ NNP 40404 3939 32 , , , 40404 3939 33 life life NN 40404 3939 34 ) ) -RRB- 40404 3939 35 , , , 40404 3939 36 has have VBZ 40404 3939 37 come come VBN 40404 3939 38 down down RP 40404 3939 39 to to IN 40404 3939 40 us -PRON- PRP 40404 3939 41 far far RB 40404 3939 42 less less RBR 40404 3939 43 mutilated mutilated JJ 40404 3939 44 and and CC 40404 3939 45 defaced deface VBN 40404 3939 46 than than IN 40404 3939 47 has have VBZ 40404 3939 48 the the DT 40404 3939 49 first first JJ 40404 3939 50 volume volume NN 40404 3939 51 , , , 40404 3939 52 which which WDT 40404 3939 53 contains contain VBZ 40404 3939 54 the the DT 40404 3939 55 traces trace NNS 40404 3939 56 of of IN 40404 3939 57 the the DT 40404 3939 58 most most RBS 40404 3939 59 ancient ancient JJ 40404 3939 60 life life NN 40404 3939 61 of of IN 40404 3939 62 the the DT 40404 3939 63 globe globe NN 40404 3939 64 . . . 40404 3940 1 Fossils fossil NNS 40404 3940 2 are be VBP 40404 3940 3 far far RB 40404 3940 4 more more RBR 40404 3940 5 abundant abundant JJ 40404 3940 6 in in IN 40404 3940 7 the the DT 40404 3940 8 Paleozoic Paleozoic NNP 40404 3940 9 than than IN 40404 3940 10 in in IN 40404 3940 11 the the DT 40404 3940 12 earlier early JJR 40404 3940 13 strata strata NN 40404 3940 14 , , , 40404 3940 15 while while IN 40404 3940 16 the the DT 40404 3940 17 sediments sediment NNS 40404 3940 18 in in IN 40404 3940 19 which which WDT 40404 3940 20 they -PRON- PRP 40404 3940 21 were be VBD 40404 3940 22 entombed entomb VBN 40404 3940 23 have have VBP 40404 3940 24 suffered suffer VBN 40404 3940 25 far far RB 40404 3940 26 less less RBR 40404 3940 27 from from IN 40404 3940 28 metamorphism metamorphism NN 40404 3940 29 and and CC 40404 3940 30 other other JJ 40404 3940 31 causes cause NNS 40404 3940 32 , , , 40404 3940 33 and and CC 40404 3940 34 have have VBP 40404 3940 35 been be VBN 40404 3940 36 less less RBR 40404 3940 37 widely widely RB 40404 3940 38 buried bury VBN 40404 3940 39 from from IN 40404 3940 40 view view NN 40404 3940 41 , , , 40404 3940 42 than than IN 40404 3940 43 the the DT 40404 3940 44 strata strata NN 40404 3940 45 of of IN 40404 3940 46 the the DT 40404 3940 47 pre pre JJ 40404 3940 48 - - JJ 40404 3940 49 Cambrian cambrian JJ 40404 3940 50 groups group NNS 40404 3940 51 . . . 40404 3941 1 By by IN 40404 3941 2 means mean NNS 40404 3941 3 of of IN 40404 3941 4 their -PRON- PRP$ 40404 3941 5 fossils fossil NNS 40404 3941 6 we -PRON- PRP 40404 3941 7 can can MD 40404 3941 8 correlate correlate VB 40404 3941 9 the the DT 40404 3941 10 formations formation NNS 40404 3941 11 of of IN 40404 3941 12 widely widely RB 40404 3941 13 separated separated JJ 40404 3941 14 regions region NNS 40404 3941 15 from from IN 40404 3941 16 the the DT 40404 3941 17 beginning beginning NN 40404 3941 18 of of IN 40404 3941 19 the the DT 40404 3941 20 Paleozoic Paleozoic NNP 40404 3941 21 on on IN 40404 3941 22 , , , 40404 3941 23 and and CC 40404 3941 24 can can MD 40404 3941 25 therefore therefore RB 40404 3941 26 trace trace VB 40404 3941 27 some some DT 40404 3941 28 outline outline NN 40404 3941 29 of of IN 40404 3941 30 the the DT 40404 3941 31 history history NN 40404 3941 32 of of IN 40404 3941 33 the the DT 40404 3941 34 continents continent NNS 40404 3941 35 . . . 40404 3942 1 Paleozoic paleozoic JJ 40404 3942 2 time time NN 40404 3942 3 , , , 40404 3942 4 although although IN 40404 3942 5 shorter short JJR 40404 3942 6 than than IN 40404 3942 7 the the DT 40404 3942 8 pre pre JJ 40404 3942 9 - - JJ 40404 3942 10 Cambrian cambrian JJ 40404 3942 11 as as IN 40404 3942 12 measured measure VBN 40404 3942 13 by by IN 40404 3942 14 the the DT 40404 3942 15 thickness thickness NN 40404 3942 16 of of IN 40404 3942 17 the the DT 40404 3942 18 strata strata NN 40404 3942 19 , , , 40404 3942 20 must must MD 40404 3942 21 still still RB 40404 3942 22 be be VB 40404 3942 23 reckoned reckon VBN 40404 3942 24 in in IN 40404 3942 25 millions million NNS 40404 3942 26 of of IN 40404 3942 27 years year NNS 40404 3942 28 . . . 40404 3943 1 During during IN 40404 3943 2 this this DT 40404 3943 3 vast vast JJ 40404 3943 4 reach reach NN 40404 3943 5 of of IN 40404 3943 6 time time NN 40404 3943 7 the the DT 40404 3943 8 changes change NNS 40404 3943 9 in in IN 40404 3943 10 organisms organism NNS 40404 3943 11 were be VBD 40404 3943 12 very very RB 40404 3943 13 great great JJ 40404 3943 14 . . . 40404 3944 1 It -PRON- PRP 40404 3944 2 is be VBZ 40404 3944 3 according accord VBG 40404 3944 4 to to IN 40404 3944 5 the the DT 40404 3944 6 successive successive JJ 40404 3944 7 stages stage NNS 40404 3944 8 in in IN 40404 3944 9 the the DT 40404 3944 10 advance advance NN 40404 3944 11 of of IN 40404 3944 12 life life NN 40404 3944 13 that that WDT 40404 3944 14 the the DT 40404 3944 15 Paleozoic Paleozoic NNP 40404 3944 16 formations formation NNS 40404 3944 17 are be VBP 40404 3944 18 arranged arrange VBN 40404 3944 19 in in IN 40404 3944 20 five five CD 40404 3944 21 systems,--the systems,--the DT 40404 3944 22 _ _ NNP 40404 3944 23 Cambrian Cambrian NNP 40404 3944 24 _ _ NNP 40404 3944 25 , , , 40404 3944 26 the the DT 40404 3944 27 _ _ NNP 40404 3944 28 Ordovician Ordovician NNP 40404 3944 29 _ _ NNP 40404 3944 30 , , , 40404 3944 31 the the DT 40404 3944 32 _ _ NNP 40404 3944 33 Silurian Silurian NNP 40404 3944 34 _ _ NNP 40404 3944 35 , , , 40404 3944 36 the the DT 40404 3944 37 _ _ NNP 40404 3944 38 Devonian Devonian NNP 40404 3944 39 _ _ NNP 40404 3944 40 , , , 40404 3944 41 and and CC 40404 3944 42 the the DT 40404 3944 43 _ _ NNP 40404 3944 44 Carboniferous Carboniferous NNP 40404 3944 45 _ _ NNP 40404 3944 46 . . . 40404 3945 1 On on IN 40404 3945 2 the the DT 40404 3945 3 same same JJ 40404 3945 4 basis basis NN 40404 3945 5 the the DT 40404 3945 6 first first JJ 40404 3945 7 three three CD 40404 3945 8 systems system NNS 40404 3945 9 are be VBP 40404 3945 10 grouped group VBN 40404 3945 11 together together RB 40404 3945 12 as as IN 40404 3945 13 the the DT 40404 3945 14 older old JJR 40404 3945 15 Paleozoic Paleozoic NNP 40404 3945 16 , , , 40404 3945 17 because because IN 40404 3945 18 they -PRON- PRP 40404 3945 19 alike alike RB 40404 3945 20 are be VBP 40404 3945 21 characterized characterize VBN 40404 3945 22 by by IN 40404 3945 23 the the DT 40404 3945 24 dominance dominance NN 40404 3945 25 of of IN 40404 3945 26 the the DT 40404 3945 27 invertebrates invertebrates NNPS 40404 3945 28 ; ; : 40404 3945 29 while while IN 40404 3945 30 the the DT 40404 3945 31 last last JJ 40404 3945 32 two two CD 40404 3945 33 systems system NNS 40404 3945 34 are be VBP 40404 3945 35 united united JJ 40404 3945 36 in in IN 40404 3945 37 the the DT 40404 3945 38 later later JJ 40404 3945 39 Paleozoic Paleozoic NNP 40404 3945 40 , , , 40404 3945 41 and and CC 40404 3945 42 are be VBP 40404 3945 43 characterized characterize VBN 40404 3945 44 , , , 40404 3945 45 the the DT 40404 3945 46 one one NN 40404 3945 47 by by IN 40404 3945 48 the the DT 40404 3945 49 dominance dominance NN 40404 3945 50 of of IN 40404 3945 51 fishes fish NNS 40404 3945 52 , , , 40404 3945 53 and and CC 40404 3945 54 the the DT 40404 3945 55 other other JJ 40404 3945 56 by by IN 40404 3945 57 the the DT 40404 3945 58 appearance appearance NN 40404 3945 59 of of IN 40404 3945 60 amphibians amphibian NNS 40404 3945 61 and and CC 40404 3945 62 reptiles reptile NNS 40404 3945 63 . . . 40404 3946 1 Each each DT 40404 3946 2 of of IN 40404 3946 3 these these DT 40404 3946 4 systems system NNS 40404 3946 5 is be VBZ 40404 3946 6 world world NN 40404 3946 7 - - HYPH 40404 3946 8 wide wide RB 40404 3946 9 in in IN 40404 3946 10 its -PRON- PRP$ 40404 3946 11 distribution distribution NN 40404 3946 12 , , , 40404 3946 13 and and CC 40404 3946 14 may may MD 40404 3946 15 be be VB 40404 3946 16 recognized recognize VBN 40404 3946 17 on on IN 40404 3946 18 any any DT 40404 3946 19 continent continent NN 40404 3946 20 by by IN 40404 3946 21 its -PRON- PRP$ 40404 3946 22 own own JJ 40404 3946 23 peculiar peculiar JJ 40404 3946 24 fauna fauna NNS 40404 3946 25 . . . 40404 3947 1 The the DT 40404 3947 2 names name NNS 40404 3947 3 first first RB 40404 3947 4 given give VBN 40404 3947 5 them -PRON- PRP 40404 3947 6 in in IN 40404 3947 7 Great Great NNP 40404 3947 8 Britain Britain NNP 40404 3947 9 have have VBP 40404 3947 10 therefore therefore RB 40404 3947 11 come come VBN 40404 3947 12 into into IN 40404 3947 13 general general JJ 40404 3947 14 use use NN 40404 3947 15 , , , 40404 3947 16 while while IN 40404 3947 17 their -PRON- PRP$ 40404 3947 18 subdivisions subdivision NNS 40404 3947 19 , , , 40404 3947 20 which which WDT 40404 3947 21 often often RB 40404 3947 22 can can MD 40404 3947 23 not not RB 40404 3947 24 be be VB 40404 3947 25 correlated correlate VBN 40404 3947 26 in in IN 40404 3947 27 different different JJ 40404 3947 28 countries country NNS 40404 3947 29 and and CC 40404 3947 30 different different JJ 40404 3947 31 regions region NNS 40404 3947 32 , , , 40404 3947 33 are be VBP 40404 3947 34 usually usually RB 40404 3947 35 given give VBN 40404 3947 36 local local JJ 40404 3947 37 names name NNS 40404 3947 38 . . . 40404 3948 1 The the DT 40404 3948 2 first first JJ 40404 3948 3 three three CD 40404 3948 4 systems system NNS 40404 3948 5 were be VBD 40404 3948 6 named name VBN 40404 3948 7 from from IN 40404 3948 8 the the DT 40404 3948 9 fact fact NN 40404 3948 10 that that IN 40404 3948 11 their -PRON- PRP$ 40404 3948 12 strata stratum NNS 40404 3948 13 are be VBP 40404 3948 14 well well RB 40404 3948 15 displayed display VBN 40404 3948 16 in in IN 40404 3948 17 Wales Wales NNP 40404 3948 18 . . . 40404 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NNP 40404 3950 10 , , , 40404 3950 11 where where WRB 40404 3950 12 its -PRON- PRP$ 40404 3950 13 rocks rock NNS 40404 3950 14 were be VBD 40404 3950 15 early early RB 40404 3950 16 studied study VBN 40404 3950 17 . . . 40404 3951 1 The the DT 40404 3951 2 Carboniferous Carboniferous NNP 40404 3951 3 was be VBD 40404 3951 4 so so RB 40404 3951 5 called call VBN 40404 3951 6 from from IN 40404 3951 7 the the DT 40404 3951 8 large large JJ 40404 3951 9 amount amount NN 40404 3951 10 of of IN 40404 3951 11 coal coal NN 40404 3951 12 which which WDT 40404 3951 13 it -PRON- PRP 40404 3951 14 was be VBD 40404 3951 15 found find VBN 40404 3951 16 to to TO 40404 3951 17 contain contain VB 40404 3951 18 in in IN 40404 3951 19 Great Great NNP 40404 3951 20 Britain Britain NNP 40404 3951 21 and and CC 40404 3951 22 continental continental JJ 40404 3951 23 Europe Europe NNP 40404 3951 24 . . . 40404 3952 1 The the DT 40404 3952 2 Cambrian cambrian JJ 40404 3952 3 = = SYM 40404 3952 4 Distribution distribution NN 40404 3952 5 of of IN 40404 3952 6 strata.= strata.= CD 40404 3952 7 The the DT 40404 3952 8 Cambrian cambrian JJ 40404 3952 9 rocks rock NNS 40404 3952 10 outcrop outcrop NN 40404 3952 11 in in IN 40404 3952 12 narrow narrow JJ 40404 3952 13 belts belt NNS 40404 3952 14 about about IN 40404 3952 15 the the DT 40404 3952 16 pre pre JJ 40404 3952 17 - - JJ 40404 3952 18 Cambrian cambrian JJ 40404 3952 19 areas area NNS 40404 3952 20 of of IN 40404 3952 21 eastern eastern JJ 40404 3952 22 Canada Canada NNP 40404 3952 23 and and CC 40404 3952 24 the the DT 40404 3952 25 Lake Lake NNP 40404 3952 26 Superior Superior NNP 40404 3952 27 region region NN 40404 3952 28 , , , 40404 3952 29 the the DT 40404 3952 30 Adirondacks Adirondacks NNPS 40404 3952 31 and and CC 40404 3952 32 the the DT 40404 3952 33 Green Green NNP 40404 3952 34 Mountains Mountains NNPS 40404 3952 35 . . . 40404 3953 1 Strips strip NNS 40404 3953 2 of of IN 40404 3953 3 Cambrian cambrian JJ 40404 3953 4 formations formation NNS 40404 3953 5 occupy occupy VBP 40404 3953 6 troughs trough NNS 40404 3953 7 in in IN 40404 3953 8 the the DT 40404 3953 9 pre pre JJ 40404 3953 10 - - JJ 40404 3953 11 Cambrian cambrian JJ 40404 3953 12 rocks rock NNS 40404 3953 13 of of IN 40404 3953 14 New New NNP 40404 3953 15 England England NNP 40404 3953 16 and and CC 40404 3953 17 the the DT 40404 3953 18 maritime maritime JJ 40404 3953 19 provinces province NNS 40404 3953 20 of of IN 40404 3953 21 Canada Canada NNP 40404 3953 22 ; ; : 40404 3953 23 a a DT 40404 3953 24 long long JJ 40404 3953 25 belt belt NN 40404 3953 26 borders border NNS 40404 3953 27 on on IN 40404 3953 28 the the DT 40404 3953 29 west west NN 40404 3953 30 the the DT 40404 3953 31 crystalline crystalline NN 40404 3953 32 rocks rock NNS 40404 3953 33 of of IN 40404 3953 34 the the DT 40404 3953 35 Blue Blue NNP 40404 3953 36 Ridge Ridge NNP 40404 3953 37 ; ; : 40404 3953 38 and and CC 40404 3953 39 on on IN 40404 3953 40 the the DT 40404 3953 41 opposite opposite JJ 40404 3953 42 side side NN 40404 3953 43 of of IN 40404 3953 44 the the DT 40404 3953 45 continent continent NN 40404 3953 46 the the DT 40404 3953 47 Cambrian cambrian JJ 40404 3953 48 reappears reappear NNS 40404 3953 49 in in IN 40404 3953 50 the the DT 40404 3953 51 mountains mountain NNS 40404 3953 52 of of IN 40404 3953 53 the the DT 40404 3953 54 Great Great NNP 40404 3953 55 Basin Basin NNP 40404 3953 56 and and CC 40404 3953 57 the the DT 40404 3953 58 Canadian Canadian NNP 40404 3953 59 Rockies Rockies NNPS 40404 3953 60 . . . 40404 3954 1 In in IN 40404 3954 2 the the DT 40404 3954 3 Mississippi Mississippi NNP 40404 3954 4 valley valley NN 40404 3954 5 it -PRON- PRP 40404 3954 6 is be VBZ 40404 3954 7 exposed expose VBN 40404 3954 8 in in IN 40404 3954 9 small small JJ 40404 3954 10 districts district NNS 40404 3954 11 where where WRB 40404 3954 12 uplift uplift NN 40404 3954 13 has have VBZ 40404 3954 14 permitted permit VBN 40404 3954 15 the the DT 40404 3954 16 stripping stripping NN 40404 3954 17 off off IN 40404 3954 18 of of IN 40404 3954 19 younger young JJR 40404 3954 20 rocks rock NNS 40404 3954 21 . . . 40404 3955 1 Although although IN 40404 3955 2 the the DT 40404 3955 3 areas area NNS 40404 3955 4 of of IN 40404 3955 5 outcrop outcrop NNP 40404 3955 6 are be VBP 40404 3955 7 small small JJ 40404 3955 8 , , , 40404 3955 9 we -PRON- PRP 40404 3955 10 may may MD 40404 3955 11 infer infer VB 40404 3955 12 that that IN 40404 3955 13 Cambrian cambrian JJ 40404 3955 14 rocks rock NNS 40404 3955 15 were be VBD 40404 3955 16 widely widely RB 40404 3955 17 deposited deposit VBN 40404 3955 18 over over IN 40404 3955 19 the the DT 40404 3955 20 continent continent NN 40404 3955 21 of of IN 40404 3955 22 North North NNP 40404 3955 23 America America NNP 40404 3955 24 . . . 40404 3956 1 = = NFP 40404 3956 2 Physical physical JJ 40404 3956 3 geography.= geography.= NNS 40404 3956 4 The the DT 40404 3956 5 Cambrian cambrian JJ 40404 3956 6 system system NN 40404 3956 7 of of IN 40404 3956 8 North North NNP 40404 3956 9 America America NNP 40404 3956 10 comprises comprise VBZ 40404 3956 11 three three CD 40404 3956 12 distinct distinct JJ 40404 3956 13 series series NN 40404 3956 14 , , , 40404 3956 15 the the DT 40404 3956 16 _ _ NNP 40404 3956 17 Lower low JJR 40404 3956 18 Cambrian Cambrian NNP 40404 3956 19 _ _ NNP 40404 3956 20 , , , 40404 3956 21 the the DT 40404 3956 22 _ _ NNP 40404 3956 23 Middle Middle NNP 40404 3956 24 Cambrian Cambrian NNP 40404 3956 25 _ _ NNP 40404 3956 26 , , , 40404 3956 27 and and CC 40404 3956 28 the the DT 40404 3956 29 _ _ NNP 40404 3956 30 Upper Upper NNP 40404 3956 31 Cambrian Cambrian NNP 40404 3956 32 _ _ NNP 40404 3956 33 , , , 40404 3956 34 each each DT 40404 3956 35 of of IN 40404 3956 36 which which WDT 40404 3956 37 is be VBZ 40404 3956 38 characterized characterize VBN 40404 3956 39 by by IN 40404 3956 40 its -PRON- PRP$ 40404 3956 41 own own JJ 40404 3956 42 peculiar peculiar JJ 40404 3956 43 fauna fauna NNS 40404 3956 44 . . . 40404 3957 1 In in IN 40404 3957 2 sketching sketch VBG 40404 3957 3 the the DT 40404 3957 4 outlines outline NNS 40404 3957 5 of of IN 40404 3957 6 the the DT 40404 3957 7 continent continent NN 40404 3957 8 as as IN 40404 3957 9 it -PRON- PRP 40404 3957 10 was be VBD 40404 3957 11 at at IN 40404 3957 12 the the DT 40404 3957 13 beginning beginning NN 40404 3957 14 of of IN 40404 3957 15 the the DT 40404 3957 16 Paleozoic Paleozoic NNP 40404 3957 17 , , , 40404 3957 18 it -PRON- PRP 40404 3957 19 must must MD 40404 3957 20 be be VB 40404 3957 21 remembered remember VBN 40404 3957 22 that that IN 40404 3957 23 wherever wherever WRB 40404 3957 24 the the DT 40404 3957 25 Lower low JJR 40404 3957 26 Cambrian cambrian JJ 40404 3957 27 formations formation NNS 40404 3957 28 now now RB 40404 3957 29 are be VBP 40404 3957 30 found find VBN 40404 3957 31 was be VBD 40404 3957 32 certainly certainly RB 40404 3957 33 then then RB 40404 3957 34 sea sea NN 40404 3957 35 bottom bottom NN 40404 3957 36 , , , 40404 3957 37 and and CC 40404 3957 38 wherever wherever WRB 40404 3957 39 the the DT 40404 3957 40 Lower low JJR 40404 3957 41 Cambrian Cambrian NNP 40404 3957 42 are be VBP 40404 3957 43 wanting want VBG 40404 3957 44 , , , 40404 3957 45 and and CC 40404 3957 46 the the DT 40404 3957 47 next next JJ 40404 3957 48 formations formation NNS 40404 3957 49 rest rest VBP 40404 3957 50 directly directly RB 40404 3957 51 on on IN 40404 3957 52 pre pre JJ 40404 3957 53 - - JJ 40404 3957 54 Cambrian cambrian JJ 40404 3957 55 rocks rock NNS 40404 3957 56 , , , 40404 3957 57 was be VBD 40404 3957 58 probably probably RB 40404 3957 59 then then RB 40404 3957 60 land land NN 40404 3957 61 . . . 40404 3958 1 [ [ -LRB- 40404 3958 2 Illustration illustration NN 40404 3958 3 : : : 40404 3958 4 Fig Fig NNP 40404 3958 5 . . . 40404 3959 1 264 264 CD 40404 3959 2 . . . 40404 3960 1 Hypothetical Hypothetical NNP 40404 3960 2 Map Map NNP 40404 3960 3 of of IN 40404 3960 4 Eastern Eastern NNP 40404 3960 5 North North NNP 40404 3960 6 America America NNP 40404 3960 7 at at IN 40404 3960 8 the the DT 40404 3960 9 Beginning beginning NN 40404 3960 10 of of IN 40404 3960 11 Cambrian cambrian JJ 40404 3960 12 Time Time NNP 40404 3960 13 Unshaded unshade VBN 40404 3960 14 areas area NNS 40404 3960 15 , , , 40404 3960 16 probable probable JJ 40404 3960 17 land land NN 40404 3960 18 ] ] -RRB- 40404 3960 19 = = NFP 40404 3960 20 Early early JJ 40404 3960 21 Cambrian cambrian JJ 40404 3960 22 geography.= geography.= NNS 40404 3960 23 In in IN 40404 3960 24 this this DT 40404 3960 25 way way NN 40404 3960 26 we -PRON- PRP 40404 3960 27 know know VBP 40404 3960 28 that that IN 40404 3960 29 at at IN 40404 3960 30 the the DT 40404 3960 31 opening opening NN 40404 3960 32 of of IN 40404 3960 33 the the DT 40404 3960 34 Cambrian cambrian JJ 40404 3960 35 two two CD 40404 3960 36 long long JJ 40404 3960 37 , , , 40404 3960 38 narrow narrow JJ 40404 3960 39 mediterranean mediterranean NNP 40404 3960 40 seas sea NNS 40404 3960 41 stretched stretch VBD 40404 3960 42 from from IN 40404 3960 43 north north NN 40404 3960 44 to to IN 40404 3960 45 south south RB 40404 3960 46 across across IN 40404 3960 47 the the DT 40404 3960 48 continent continent NN 40404 3960 49 . . . 40404 3961 1 The the DT 40404 3961 2 eastern eastern JJ 40404 3961 3 sea sea NN 40404 3961 4 extended extend VBD 40404 3961 5 from from IN 40404 3961 6 the the DT 40404 3961 7 Gulf Gulf NNP 40404 3961 8 of of IN 40404 3961 9 St. St. NNP 40404 3961 10 Lawrence Lawrence NNP 40404 3961 11 down down IN 40404 3961 12 the the DT 40404 3961 13 Champlain Champlain NNP 40404 3961 14 - - HYPH 40404 3961 15 Hudson Hudson NNP 40404 3961 16 valley valley NN 40404 3961 17 and and CC 40404 3961 18 thence thence NN 40404 3961 19 along along IN 40404 3961 20 the the DT 40404 3961 21 western western JJ 40404 3961 22 base base NN 40404 3961 23 of of IN 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to IN 40404 3964 2 the the DT 40404 3964 3 east east NN 40404 3964 4 lay lie VBD 40404 3964 5 a a DT 40404 3964 6 land land NN 40404 3964 7 which which WDT 40404 3964 8 we -PRON- PRP 40404 3964 9 may may MD 40404 3964 10 designate designate VB 40404 3964 11 as as IN 40404 3964 12 _ _ NNP 40404 3964 13 Appalachia Appalachia NNP 40404 3964 14 _ _ NNP 40404 3964 15 , , , 40404 3964 16 whose whose WP$ 40404 3964 17 western western JJ 40404 3964 18 shore shore NN 40404 3964 19 line line NN 40404 3964 20 was be VBD 40404 3964 21 drawn draw VBN 40404 3964 22 along along IN 40404 3964 23 the the DT 40404 3964 24 site site NN 40404 3964 25 of of IN 40404 3964 26 the the DT 40404 3964 27 present present JJ 40404 3964 28 Blue Blue NNP 40404 3964 29 Ridge Ridge NNP 40404 3964 30 , , , 40404 3964 31 but but CC 40404 3964 32 whose whose WP$ 40404 3964 33 other other JJ 40404 3964 34 limits limit NNS 40404 3964 35 are be VBP 40404 3964 36 quite quite RB 40404 3964 37 unknown unknown JJ 40404 3964 38 . . . 40404 3965 1 The the DT 40404 3965 2 land land NN 40404 3965 3 of of IN 40404 3965 4 Appalachia Appalachia NNP 40404 3965 5 must must MD 40404 3965 6 have have VB 40404 3965 7 been be VBN 40404 3965 8 large large JJ 40404 3965 9 , , , 40404 3965 10 for for IN 40404 3965 11 it -PRON- PRP 40404 3965 12 furnished furnish VBD 40404 3965 13 a a DT 40404 3965 14 great great JJ 40404 3965 15 amount amount NN 40404 3965 16 of of IN 40404 3965 17 waste waste NN 40404 3965 18 during during IN 40404 3965 19 the the DT 40404 3965 20 entire entire JJ 40404 3965 21 Paleozoic Paleozoic NNP 40404 3965 22 era era NN 40404 3965 23 , , , 40404 3965 24 and and CC 40404 3965 25 its -PRON- PRP$ 40404 3965 26 eastern eastern JJ 40404 3965 27 coast coast NN 40404 3965 28 may may MD 40404 3965 29 possibly possibly RB 40404 3965 30 have have VB 40404 3965 31 lain lie VBN 40404 3965 32 even even RB 40404 3965 33 beyond beyond IN 40404 3965 34 the the DT 40404 3965 35 edge edge NN 40404 3965 36 of of IN 40404 3965 37 the the DT 40404 3965 38 present present JJ 40404 3965 39 continental continental JJ 40404 3965 40 shelf shelf NN 40404 3965 41 . . . 40404 3966 1 On on IN 40404 3966 2 the the DT 40404 3966 3 western western JJ 40404 3966 4 side side NN 40404 3966 5 of of IN 40404 3966 6 the the DT 40404 3966 7 continent continent NN 40404 3966 8 a a DT 40404 3966 9 narrow narrow JJ 40404 3966 10 land land NN 40404 3966 11 occupied occupy VBD 40404 3966 12 the the DT 40404 3966 13 site site NN 40404 3966 14 of of IN 40404 3966 15 the the DT 40404 3966 16 Sierra Sierra NNP 40404 3966 17 Nevada Nevada NNP 40404 3966 18 Mountains Mountains NNPS 40404 3966 19 . . . 40404 3967 1 Thus thus RB 40404 3967 2 , , , 40404 3967 3 even even RB 40404 3967 4 at at IN 40404 3967 5 the the DT 40404 3967 6 beginning beginning NN 40404 3967 7 of of IN 40404 3967 8 the the DT 40404 3967 9 Paleozoic Paleozoic NNP 40404 3967 10 , , , 40404 3967 11 the the DT 40404 3967 12 continental continental JJ 40404 3967 13 plateau plateau NN 40404 3967 14 of of IN 40404 3967 15 North North NNP 40404 3967 16 America America NNP 40404 3967 17 had have VBD 40404 3967 18 already already RB 40404 3967 19 been be VBN 40404 3967 20 left leave VBN 40404 3967 21 by by IN 40404 3967 22 crustal crustal JJ 40404 3967 23 movements movement NNS 40404 3967 24 in in IN 40404 3967 25 relief relief NN 40404 3967 26 above above IN 40404 3967 27 the the DT 40404 3967 28 abysses abyss NNS 40404 3967 29 of of IN 40404 3967 30 the the DT 40404 3967 31 great great JJ 40404 3967 32 oceans ocean NNS 40404 3967 33 on on IN 40404 3967 34 either either DT 40404 3967 35 side side NN 40404 3967 36 . . . 40404 3968 1 The the DT 40404 3968 2 mediterraneans mediterranean NNS 40404 3968 3 which which WDT 40404 3968 4 lay lie VBD 40404 3968 5 upon upon IN 40404 3968 6 it -PRON- PRP 40404 3968 7 were be VBD 40404 3968 8 shallow shallow JJ 40404 3968 9 , , , 40404 3968 10 as as IN 40404 3968 11 their -PRON- PRP$ 40404 3968 12 sediments sediment NNS 40404 3968 13 prove prove VBP 40404 3968 14 . . . 40404 3969 1 They -PRON- PRP 40404 3969 2 were be VBD 40404 3969 3 _ _ NNP 40404 3969 4 epicontinental epicontinental JJ 40404 3969 5 seas sea NNS 40404 3969 6 _ _ NNP 40404 3969 7 ; ; : 40404 3969 8 that that RB 40404 3969 9 is is RB 40404 3969 10 , , , 40404 3969 11 they -PRON- PRP 40404 3969 12 rested rest VBD 40404 3969 13 _ _ NNP 40404 3969 14 upon upon IN 40404 3969 15 _ _ NNP 40404 3969 16 ( ( -LRB- 40404 3969 17 Greek Greek NNP 40404 3969 18 , , , 40404 3969 19 _ _ NNP 40404 3969 20 epi epi NNP 40404 3969 21 _ _ NNP 40404 3969 22 ) ) -RRB- 40404 3969 23 the the DT 40404 3969 24 submerged submerge VBN 40404 3969 25 portion portion NN 40404 3969 26 of of IN 40404 3969 27 the the DT 40404 3969 28 continental continental JJ 40404 3969 29 plateau plateau NN 40404 3969 30 . . . 40404 3970 1 We -PRON- PRP 40404 3970 2 have have VBP 40404 3970 3 no no DT 40404 3970 4 proof proof NN 40404 3970 5 that that IN 40404 3970 6 the the DT 40404 3970 7 deep deep JJ 40404 3970 8 ocean ocean NN 40404 3970 9 ever ever RB 40404 3970 10 occupied occupy VBD 40404 3970 11 any any DT 40404 3970 12 part part NN 40404 3970 13 of of IN 40404 3970 14 where where WRB 40404 3970 15 North North NNP 40404 3970 16 America America NNP 40404 3970 17 now now RB 40404 3970 18 is be VBZ 40404 3970 19 . . . 40404 3971 1 The the DT 40404 3971 2 Middle Middle NNP 40404 3971 3 and and CC 40404 3971 4 Upper upper JJ 40404 3971 5 Cambrian cambrian JJ 40404 3971 6 strata stratum NNS 40404 3971 7 are be VBP 40404 3971 8 found find VBN 40404 3971 9 together together RB 40404 3971 10 with with IN 40404 3971 11 the the DT 40404 3971 12 Lower Lower NNP 40404 3971 13 Cambrian Cambrian NNP 40404 3971 14 over over IN 40404 3971 15 the the DT 40404 3971 16 area area NN 40404 3971 17 of of IN 40404 3971 18 both both PDT 40404 3971 19 the the DT 40404 3971 20 eastern eastern JJ 40404 3971 21 and and CC 40404 3971 22 the the DT 40404 3971 23 western western JJ 40404 3971 24 mediterraneans mediterranean NNS 40404 3971 25 , , , 40404 3971 26 so so IN 40404 3971 27 that that IN 40404 3971 28 here here RB 40404 3971 29 the the DT 40404 3971 30 sea sea NN 40404 3971 31 continued continue VBD 40404 3971 32 during during IN 40404 3971 33 the the DT 40404 3971 34 entire entire JJ 40404 3971 35 period period NN 40404 3971 36 . . . 40404 3972 1 The the DT 40404 3972 2 sediments sediment NNS 40404 3972 3 throughout throughout IN 40404 3972 4 are be VBP 40404 3972 5 those those DT 40404 3972 6 of of IN 40404 3972 7 shoal shoal NN 40404 3972 8 water water NN 40404 3972 9 . . . 40404 3973 1 Coarse coarse JJ 40404 3973 2 cross cross JJ 40404 3973 3 - - JJ 40404 3973 4 bedded bedded JJ 40404 3973 5 sandstones sandstone NNS 40404 3973 6 record record VBP 40404 3973 7 the the DT 40404 3973 8 action action NN 40404 3973 9 of of IN 40404 3973 10 strong strong JJ 40404 3973 11 shifting shifting NN 40404 3973 12 currents current NNS 40404 3973 13 which which WDT 40404 3973 14 spread spread VBD 40404 3973 15 coarse coarse JJ 40404 3973 16 waste waste NN 40404 3973 17 near near IN 40404 3973 18 shore shore NN 40404 3973 19 and and CC 40404 3973 20 winnowed winnow VBD 40404 3973 21 it -PRON- PRP 40404 3973 22 of of IN 40404 3973 23 finer fine JJR 40404 3973 24 stuff stuff NN 40404 3973 25 . . . 40404 3974 1 Frequent frequent JJ 40404 3974 2 ripple ripple NN 40404 3974 3 marks mark NNS 40404 3974 4 on on IN 40404 3974 5 the the DT 40404 3974 6 bedding bed VBG 40404 3974 7 planes plane NNS 40404 3974 8 of of IN 40404 3974 9 the the DT 40404 3974 10 strata strata NN 40404 3974 11 prove prove VBP 40404 3974 12 that that IN 40404 3974 13 the the DT 40404 3974 14 loose loose JJ 40404 3974 15 sands sand NNS 40404 3974 16 of of IN 40404 3974 17 the the DT 40404 3974 18 sea sea NN 40404 3974 19 floor floor NN 40404 3974 20 were be VBD 40404 3974 21 near near IN 40404 3974 22 enough enough RB 40404 3974 23 to to IN 40404 3974 24 the the DT 40404 3974 25 surface surface NN 40404 3974 26 to to TO 40404 3974 27 be be VB 40404 3974 28 agitated agitate VBN 40404 3974 29 by by IN 40404 3974 30 waves wave NNS 40404 3974 31 and and CC 40404 3974 32 tidal tidal JJ 40404 3974 33 currents current NNS 40404 3974 34 . . . 40404 3975 1 Sun Sun NNP 40404 3975 2 cracks cracks NNP 40404 3975 3 show show VBP 40404 3975 4 that that IN 40404 3975 5 often often RB 40404 3975 6 the the DT 40404 3975 7 outgoing outgoing JJ 40404 3975 8 tide tide NN 40404 3975 9 exposed expose VBD 40404 3975 10 large large JJ 40404 3975 11 muddy muddy JJ 40404 3975 12 flats flat NNS 40404 3975 13 to to IN 40404 3975 14 the the DT 40404 3975 15 drying drying NN 40404 3975 16 action action NN 40404 3975 17 of of IN 40404 3975 18 the the DT 40404 3975 19 sun sun NN 40404 3975 20 . . . 40404 3976 1 The the DT 40404 3976 2 fossils fossil NNS 40404 3976 3 , , , 40404 3976 4 also also RB 40404 3976 5 , , , 40404 3976 6 of of IN 40404 3976 7 the the DT 40404 3976 8 strata strata NN 40404 3976 9 are be VBP 40404 3976 10 of of IN 40404 3976 11 kinds kind NNS 40404 3976 12 related relate VBN 40404 3976 13 to to IN 40404 3976 14 those those DT 40404 3976 15 which which WDT 40404 3976 16 now now RB 40404 3976 17 live live VBP 40404 3976 18 in in IN 40404 3976 19 shallow shallow JJ 40404 3976 20 waters water NNS 40404 3976 21 near near IN 40404 3976 22 the the DT 40404 3976 23 shore shore NN 40404 3976 24 . . . 40404 3977 1 The the DT 40404 3977 2 sediments sediment NNS 40404 3977 3 which which WDT 40404 3977 4 gathered gather VBD 40404 3977 5 in in IN 40404 3977 6 the the DT 40404 3977 7 mediterranean mediterranean NNP 40404 3977 8 seas sea NNS 40404 3977 9 were be VBD 40404 3977 10 very very RB 40404 3977 11 thick thick JJ 40404 3977 12 , , , 40404 3977 13 reaching reach VBG 40404 3977 14 in in IN 40404 3977 15 places place NNS 40404 3977 16 the the DT 40404 3977 17 enormous enormous JJ 40404 3977 18 depth depth NN 40404 3977 19 of of IN 40404 3977 20 ten ten CD 40404 3977 21 thousand thousand CD 40404 3977 22 feet foot NNS 40404 3977 23 . . . 40404 3978 1 Hence hence RB 40404 3978 2 the the DT 40404 3978 3 bottoms bottom NNS 40404 3978 4 of of IN 40404 3978 5 these these DT 40404 3978 6 seas sea NNS 40404 3978 7 were be VBD 40404 3978 8 sinking sink VBG 40404 3978 9 troughs trough NNS 40404 3978 10 , , , 40404 3978 11 ever ever RB 40404 3978 12 filling fill VBG 40404 3978 13 with with IN 40404 3978 14 waste waste NN 40404 3978 15 from from IN 40404 3978 16 the the DT 40404 3978 17 adjacent adjacent JJ 40404 3978 18 land land NN 40404 3978 19 as as RB 40404 3978 20 fast fast RB 40404 3978 21 as as IN 40404 3978 22 they -PRON- PRP 40404 3978 23 subsided subside VBD 40404 3978 24 . . . 40404 3979 1 = = NFP 40404 3979 2 Late late JJ 40404 3979 3 Cambrian cambrian JJ 40404 3979 4 geography.= geography.= NNS 40404 3979 5 The the DT 40404 3979 6 formations formation NNS 40404 3979 7 of of IN 40404 3979 8 the the DT 40404 3979 9 Middle Middle NNP 40404 3979 10 and and CC 40404 3979 11 Upper Upper NNP 40404 3979 12 Cambrian Cambrian NNP 40404 3979 13 are be VBP 40404 3979 14 found find VBN 40404 3979 15 resting rest VBG 40404 3979 16 unconformably unconformably RB 40404 3979 17 on on IN 40404 3979 18 the the DT 40404 3979 19 pre pre JJ 40404 3979 20 - - JJ 40404 3979 21 Cambrian cambrian JJ 40404 3979 22 rocks rock NNS 40404 3979 23 from from IN 40404 3979 24 New New NNP 40404 3979 25 York York NNP 40404 3979 26 westward westward RB 40404 3979 27 into into IN 40404 3979 28 Minnesota Minnesota NNP 40404 3979 29 and and CC 40404 3979 30 at at IN 40404 3979 31 various various JJ 40404 3979 32 points point NNS 40404 3979 33 in in IN 40404 3979 34 the the DT 40404 3979 35 interior interior NN 40404 3979 36 , , , 40404 3979 37 as as IN 40404 3979 38 in in IN 40404 3979 39 Missouri Missouri NNP 40404 3979 40 and and CC 40404 3979 41 in in IN 40404 3979 42 Texas Texas NNP 40404 3979 43 . . . 40404 3980 1 Hence hence RB 40404 3980 2 after after IN 40404 3980 3 earlier early JJR 40404 3980 4 Cambrian cambrian JJ 40404 3980 5 time time NN 40404 3980 6 the the DT 40404 3980 7 central central JJ 40404 3980 8 land land NN 40404 3980 9 subsided subside VBD 40404 3980 10 , , , 40404 3980 11 with with IN 40404 3980 12 much much RB 40404 3980 13 the the DT 40404 3980 14 same same JJ 40404 3980 15 effect effect NN 40404 3980 16 as as IN 40404 3980 17 if if IN 40404 3980 18 the the DT 40404 3980 19 Mississippi Mississippi NNP 40404 3980 20 valley valley NN 40404 3980 21 were be VBD 40404 3980 22 now now RB 40404 3980 23 to to TO 40404 3980 24 lower lower RBR 40404 3980 25 gradually gradually RB 40404 3980 26 , , , 40404 3980 27 and and CC 40404 3980 28 the the DT 40404 3980 29 Gulf Gulf NNP 40404 3980 30 of of IN 40404 3980 31 Mexico Mexico NNP 40404 3980 32 to to TO 40404 3980 33 spread spread VB 40404 3980 34 northward northward RB 40404 3980 35 until until IN 40404 3980 36 it -PRON- PRP 40404 3980 37 entered enter VBD 40404 3980 38 Lake Lake NNP 40404 3980 39 Superior Superior NNP 40404 3980 40 . . . 40404 3981 1 The the DT 40404 3981 2 Cambrian cambrian JJ 40404 3981 3 seas sea NNS 40404 3981 4 transgressed transgress VBD 40404 3981 5 the the DT 40404 3981 6 central central JJ 40404 3981 7 land land NN 40404 3981 8 and and CC 40404 3981 9 strewed strew VBD 40404 3981 10 far far RB 40404 3981 11 and and CC 40404 3981 12 wide wide RB 40404 3981 13 behind behind IN 40404 3981 14 their -PRON- PRP$ 40404 3981 15 advancing advance VBG 40404 3981 16 beaches beach NNS 40404 3981 17 the the DT 40404 3981 18 sediments sediment NNS 40404 3981 19 of of IN 40404 3981 20 the the DT 40404 3981 21 later later JJ 40404 3981 22 Cambrian Cambrian NNP 40404 3981 23 upon upon IN 40404 3981 24 an an DT 40404 3981 25 eroded erode VBN 40404 3981 26 surface surface NN 40404 3981 27 of of IN 40404 3981 28 pre pre JJ 40404 3981 29 - - JJ 40404 3981 30 Cambrian cambrian JJ 40404 3981 31 rocks rock NNS 40404 3981 32 . . . 40404 3982 1 The the DT 40404 3982 2 succession succession NN 40404 3982 3 of of IN 40404 3982 4 the the DT 40404 3982 5 Cambrian cambrian JJ 40404 3982 6 formations formation NNS 40404 3982 7 in in IN 40404 3982 8 North North NNP 40404 3982 9 America America NNP 40404 3982 10 records record VBZ 40404 3982 11 many many JJ 40404 3982 12 minor minor JJ 40404 3982 13 oscillations oscillation NNS 40404 3982 14 and and CC 40404 3982 15 varying varying NN 40404 3982 16 conditions condition NNS 40404 3982 17 of of IN 40404 3982 18 physical physical JJ 40404 3982 19 geography geography NN 40404 3982 20 ; ; : 40404 3982 21 yet yet RB 40404 3982 22 on on IN 40404 3982 23 the the DT 40404 3982 24 whole whole NN 40404 3982 25 it -PRON- PRP 40404 3982 26 tells tell VBZ 40404 3982 27 of of IN 40404 3982 28 widening widen VBG 40404 3982 29 seas sea NNS 40404 3982 30 and and CC 40404 3982 31 lowering lowering NN 40404 3982 32 lands land NNS 40404 3982 33 . . . 40404 3983 1 Basal Basal NNP 40404 3983 2 conglomerates conglomerate VBZ 40404 3983 3 and and CC 40404 3983 4 coarse coarse JJ 40404 3983 5 sandstones sandstone NNS 40404 3983 6 which which WDT 40404 3983 7 must must MD 40404 3983 8 have have VB 40404 3983 9 been be VBN 40404 3983 10 laid lay VBN 40404 3983 11 near near IN 40404 3983 12 shore shore NN 40404 3983 13 are be VBP 40404 3983 14 succeeded succeed VBN 40404 3983 15 by by IN 40404 3983 16 shaly shaly NNP 40404 3983 17 sandstones sandstones NNP 40404 3983 18 , , , 40404 3983 19 sandy sandy NNP 40404 3983 20 shales shale NNS 40404 3983 21 , , , 40404 3983 22 and and CC 40404 3983 23 shales shale NNS 40404 3983 24 . . . 40404 3984 1 Toward toward IN 40404 3984 2 the the DT 40404 3984 3 top top NN 40404 3984 4 of of IN 40404 3984 5 the the DT 40404 3984 6 series series NN 40404 3984 7 heavy heavy JJ 40404 3984 8 beds bed NNS 40404 3984 9 of of IN 40404 3984 10 limestone limestone NN 40404 3984 11 , , , 40404 3984 12 extending extend VBG 40404 3984 13 from from IN 40404 3984 14 the the DT 40404 3984 15 Blue Blue NNP 40404 3984 16 Ridge Ridge NNP 40404 3984 17 to to IN 40404 3984 18 Missouri Missouri NNP 40404 3984 19 , , , 40404 3984 20 speak speak VB 40404 3984 21 of of IN 40404 3984 22 clear clear JJ 40404 3984 23 water water NN 40404 3984 24 , , , 40404 3984 25 and and CC 40404 3984 26 either either DT 40404 3984 27 of of IN 40404 3984 28 more more RBR 40404 3984 29 distant distant JJ 40404 3984 30 shores shore NNS 40404 3984 31 or or CC 40404 3984 32 of of IN 40404 3984 33 neighboring neighboring NN 40404 3984 34 lands land NNS 40404 3984 35 which which WDT 40404 3984 36 were be VBD 40404 3984 37 worn wear VBN 40404 3984 38 or or CC 40404 3984 39 sunk sink VBN 40404 3984 40 so so RB 40404 3984 41 low low JJ 40404 3984 42 that that IN 40404 3984 43 for for IN 40404 3984 44 the the DT 40404 3984 45 most most JJS 40404 3984 46 part part NN 40404 3984 47 their -PRON- PRP$ 40404 3984 48 waste waste NN 40404 3984 49 was be VBD 40404 3984 50 carried carry VBN 40404 3984 51 to to IN 40404 3984 52 the the DT 40404 3984 53 sea sea NN 40404 3984 54 in in IN 40404 3984 55 solution solution NN 40404 3984 56 . . . 40404 3985 1 In in IN 40404 3985 2 brief brief NN 40404 3985 3 , , , 40404 3985 4 the the DT 40404 3985 5 Cambrian Cambrian NNP 40404 3985 6 was be VBD 40404 3985 7 a a DT 40404 3985 8 period period NN 40404 3985 9 of of IN 40404 3985 10 submergence submergence NN 40404 3985 11 . . . 40404 3986 1 It -PRON- PRP 40404 3986 2 began begin VBD 40404 3986 3 with with IN 40404 3986 4 the the DT 40404 3986 5 larger large JJR 40404 3986 6 part part NN 40404 3986 7 of of IN 40404 3986 8 North North NNP 40404 3986 9 America America NNP 40404 3986 10 emerged emerge VBD 40404 3986 11 as as IN 40404 3986 12 great great JJ 40404 3986 13 land land NN 40404 3986 14 masses masse NNS 40404 3986 15 . . . 40404 3987 1 It -PRON- PRP 40404 3987 2 closed close VBD 40404 3987 3 with with IN 40404 3987 4 most most JJS 40404 3987 5 of of IN 40404 3987 6 the the DT 40404 3987 7 interior interior NN 40404 3987 8 of of IN 40404 3987 9 the the DT 40404 3987 10 continental continental JJ 40404 3987 11 plateau plateau NNP 40404 3987 12 covered cover VBN 40404 3987 13 with with IN 40404 3987 14 a a DT 40404 3987 15 shallow shallow JJ 40404 3987 16 sea sea NN 40404 3987 17 . . . 40404 3988 1 The the DT 40404 3988 2 Life Life NNP 40404 3988 3 of of IN 40404 3988 4 the the DT 40404 3988 5 Cambrian cambrian JJ 40404 3988 6 Period Period NNP 40404 3988 7 It -PRON- PRP 40404 3988 8 is be VBZ 40404 3988 9 now now RB 40404 3988 10 for for IN 40404 3988 11 the the DT 40404 3988 12 first first JJ 40404 3988 13 time time NN 40404 3988 14 that that WDT 40404 3988 15 we -PRON- PRP 40404 3988 16 find find VBP 40404 3988 17 preserved preserve VBN 40404 3988 18 in in IN 40404 3988 19 the the DT 40404 3988 20 offshore offshore JJ 40404 3988 21 deposits deposit NNS 40404 3988 22 of of IN 40404 3988 23 the the DT 40404 3988 24 Cambrian cambrian JJ 40404 3988 25 seas sea NNS 40404 3988 26 enough enough JJ 40404 3988 27 remains remain NNS 40404 3988 28 of of IN 40404 3988 29 animal animal NN 40404 3988 30 life life NN 40404 3988 31 to to TO 40404 3988 32 be be VB 40404 3988 33 properly properly RB 40404 3988 34 called call VBN 40404 3988 35 a a DT 40404 3988 36 fauna fauna NN 40404 3988 37 . . . 40404 3989 1 Doubtless doubtless RB 40404 3989 2 these these DT 40404 3989 3 remains remain NNS 40404 3989 4 are be VBP 40404 3989 5 only only RB 40404 3989 6 the the DT 40404 3989 7 most most RBS 40404 3989 8 fragmentary fragmentary JJ 40404 3989 9 representation representation NN 40404 3989 10 of of IN 40404 3989 11 the the DT 40404 3989 12 life life NN 40404 3989 13 of of IN 40404 3989 14 the the DT 40404 3989 15 time time NN 40404 3989 16 , , , 40404 3989 17 for for IN 40404 3989 18 the the DT 40404 3989 19 Cambrian cambrian JJ 40404 3989 20 rocks rock NNS 40404 3989 21 are be VBP 40404 3989 22 very very RB 40404 3989 23 old old JJ 40404 3989 24 and and CC 40404 3989 25 have have VBP 40404 3989 26 been be VBN 40404 3989 27 widely widely RB 40404 3989 28 metamorphosed metamorphose VBN 40404 3989 29 . . . 40404 3990 1 Yet yet RB 40404 3990 2 the the DT 40404 3990 3 five five CD 40404 3990 4 hundred hundred CD 40404 3990 5 and and CC 40404 3990 6 more more JJR 40404 3990 7 species specie NNS 40404 3990 8 already already RB 40404 3990 9 discovered discover VBD 40404 3990 10 embrace embrace NN 40404 3990 11 all all PDT 40404 3990 12 the the DT 40404 3990 13 leading lead VBG 40404 3990 14 types type NNS 40404 3990 15 of of IN 40404 3990 16 invertebrate invertebrate JJ 40404 3990 17 life life NN 40404 3990 18 , , , 40404 3990 19 and and CC 40404 3990 20 are be VBP 40404 3990 21 so so RB 40404 3990 22 varied varied JJ 40404 3990 23 that that IN 40404 3990 24 we -PRON- PRP 40404 3990 25 must must MD 40404 3990 26 believe believe VB 40404 3990 27 that that IN 40404 3990 28 their -PRON- PRP$ 40404 3990 29 lines line NNS 40404 3990 30 of of IN 40404 3990 31 descent descent NN 40404 3990 32 stretch stretch NN 40404 3990 33 far far RB 40404 3990 34 back back RB 40404 3990 35 into into IN 40404 3990 36 the the DT 40404 3990 37 pre pre JJ 40404 3990 38 - - JJ 40404 3990 39 Cambrian cambrian JJ 40404 3990 40 past past NN 40404 3990 41 . . . 40404 3991 1 = = NFP 40404 3991 2 Plants.= Plants.= NNP 40404 3991 3 No no DT 40404 3991 4 remains remain NNS 40404 3991 5 of of IN 40404 3991 6 plants plant NNS 40404 3991 7 have have VBP 40404 3991 8 been be VBN 40404 3991 9 found find VBN 40404 3991 10 in in IN 40404 3991 11 Cambrian cambrian JJ 40404 3991 12 strata strata NN 40404 3991 13 , , , 40404 3991 14 except except IN 40404 3991 15 some some DT 40404 3991 16 doubtful doubtful JJ 40404 3991 17 markings marking NNS 40404 3991 18 , , , 40404 3991 19 as as IN 40404 3991 20 of of IN 40404 3991 21 seaweed seaweed NN 40404 3991 22 . . . 40404 3992 1 = = NFP 40404 3992 2 Sponges.= sponges.= PDT 40404 3992 3 The the DT 40404 3992 4 sponges sponge NNS 40404 3992 5 , , , 40404 3992 6 the the DT 40404 3992 7 lowest low JJS 40404 3992 8 of of IN 40404 3992 9 the the DT 40404 3992 10 multicellular multicellular JJ 40404 3992 11 animals animal NNS 40404 3992 12 , , , 40404 3992 13 were be VBD 40404 3992 14 represented represent VBN 40404 3992 15 by by IN 40404 3992 16 several several JJ 40404 3992 17 orders order NNS 40404 3992 18 . . . 40404 3993 1 Their -PRON- PRP$ 40404 3993 2 fossils fossil NNS 40404 3993 3 are be VBP 40404 3993 4 recognized recognize VBN 40404 3993 5 by by IN 40404 3993 6 the the DT 40404 3993 7 siliceous siliceous JJ 40404 3993 8 spicules spicule NNS 40404 3993 9 , , , 40404 3993 10 which which WDT 40404 3993 11 , , , 40404 3993 12 as as IN 40404 3993 13 in in IN 40404 3993 14 modern modern JJ 40404 3993 15 sponges sponge NNS 40404 3993 16 , , , 40404 3993 17 either either CC 40404 3993 18 were be VBD 40404 3993 19 scattered scatter VBN 40404 3993 20 through through IN 40404 3993 21 a a DT 40404 3993 22 mass mass NN 40404 3993 23 of of IN 40404 3993 24 horny horny NN 40404 3993 25 fibers fiber NNS 40404 3993 26 or or CC 40404 3993 27 were be VBD 40404 3993 28 connected connect VBN 40404 3993 29 in in IN 40404 3993 30 a a DT 40404 3993 31 flinty flinty JJ 40404 3993 32 framework framework NN 40404 3993 33 . . . 40404 3994 1 [ [ -LRB- 40404 3994 2 Illustration illustration NN 40404 3994 3 : : : 40404 3994 4 Fig Fig NNP 40404 3994 5 . . . 40404 3995 1 265 265 CD 40404 3995 2 . . . 40404 3996 1 Sponge Sponge NNP 40404 3996 2 Spicules Spicules NNP 40404 3996 3 as as IN 40404 3996 4 seen see VBN 40404 3996 5 in in IN 40404 3996 6 Flint Flint NNP 40404 3996 7 under under IN 40404 3996 8 the the DT 40404 3996 9 Microscope microscope NN 40404 3996 10 ] ] -RRB- 40404 3996 11 = = VBZ 40404 3996 12 Coelenterates.= coelenterates.= FW 40404 3996 13 This this DT 40404 3996 14 subkingdom subkingdom NN 40404 3996 15 includes include VBZ 40404 3996 16 two two CD 40404 3996 17 classes class NNS 40404 3996 18 of of IN 40404 3996 19 interest interest NN 40404 3996 20 to to IN 40404 3996 21 the the DT 40404 3996 22 geologist,--the geologist,--the NNP 40404 3996 23 _ _ NNP 40404 3996 24 Hydrozoa Hydrozoa NNP 40404 3996 25 _ _ NNP 40404 3996 26 , , , 40404 3996 27 such such JJ 40404 3996 28 as as IN 40404 3996 29 the the DT 40404 3996 30 fresh fresh JJ 40404 3996 31 - - HYPH 40404 3996 32 water water NN 40404 3996 33 hydra hydra NNS 40404 3996 34 and and CC 40404 3996 35 the the DT 40404 3996 36 jellyfish jellyfish NN 40404 3996 37 , , , 40404 3996 38 and and CC 40404 3996 39 the the DT 40404 3996 40 _ _ NNP 40404 3996 41 corals coral NNS 40404 3996 42 _ _ NNP 40404 3996 43 . . . 40404 3997 1 Both both DT 40404 3997 2 classes class NNS 40404 3997 3 existed exist VBD 40404 3997 4 in in IN 40404 3997 5 the the DT 40404 3997 6 Cambrian Cambrian NNP 40404 3997 7 . . . 40404 3998 1 [ [ -LRB- 40404 3998 2 Illustration illustration NN 40404 3998 3 : : : 40404 3998 4 Fig Fig NNP 40404 3998 5 . . . 40404 3999 1 266 266 CD 40404 3999 2 . . . 40404 4000 1 Graptolites graptolite NNS 40404 4000 2 ] ] -RRB- 40404 4000 3 The the DT 40404 4000 4 Hydrozoa Hydrozoa NNPS 40404 4000 5 were be VBD 40404 4000 6 represented represent VBN 40404 4000 7 not not RB 40404 4000 8 only only RB 40404 4000 9 by by IN 40404 4000 10 jellyfish jellyfish NN 40404 4000 11 but but CC 40404 4000 12 also also RB 40404 4000 13 by by IN 40404 4000 14 the the DT 40404 4000 15 _ _ NNP 40404 4000 16 graptolite graptolite NN 40404 4000 17 _ _ NNP 40404 4000 18 , , , 40404 4000 19 which which WDT 40404 4000 20 takes take VBZ 40404 4000 21 its -PRON- PRP$ 40404 4000 22 name name NN 40404 4000 23 from from IN 40404 4000 24 a a DT 40404 4000 25 fancied fancy VBN 40404 4000 26 resemblance resemblance NN 40404 4000 27 of of IN 40404 4000 28 some some DT 40404 4000 29 of of IN 40404 4000 30 its -PRON- PRP$ 40404 4000 31 forms form NNS 40404 4000 32 to to IN 40404 4000 33 a a DT 40404 4000 34 quill quill NN 40404 4000 35 pen pen NN 40404 4000 36 . . . 40404 4001 1 It -PRON- PRP 40404 4001 2 was be VBD 40404 4001 3 a a DT 40404 4001 4 composite composite JJ 40404 4001 5 animal animal NN 40404 4001 6 with with IN 40404 4001 7 a a DT 40404 4001 8 horny horny JJ 40404 4001 9 framework framework NN 40404 4001 10 , , , 40404 4001 11 the the DT 40404 4001 12 individuals individual NNS 40404 4001 13 of of IN 40404 4001 14 the the DT 40404 4001 15 colony colony NN 40404 4001 16 living live VBG 40404 4001 17 in in IN 40404 4001 18 cells cell NNS 40404 4001 19 strung string VBN 40404 4001 20 on on IN 40404 4001 21 one one CD 40404 4001 22 or or CC 40404 4001 23 both both DT 40404 4001 24 sides side NNS 40404 4001 25 along along IN 40404 4001 26 a a DT 40404 4001 27 hollow hollow JJ 40404 4001 28 stem stem NN 40404 4001 29 , , , 40404 4001 30 and and CC 40404 4001 31 communicating communicate VBG 40404 4001 32 by by IN 40404 4001 33 means mean NNS 40404 4001 34 of of IN 40404 4001 35 a a DT 40404 4001 36 common common JJ 40404 4001 37 flesh flesh NN 40404 4001 38 in in IN 40404 4001 39 this this DT 40404 4001 40 central central JJ 40404 4001 41 tube tube NN 40404 4001 42 . . . 40404 4002 1 Some some DT 40404 4002 2 graptolites graptolite NNS 40404 4002 3 were be VBD 40404 4002 4 straight straight JJ 40404 4002 5 , , , 40404 4002 6 and and CC 40404 4002 7 some some DT 40404 4002 8 curved curved JJ 40404 4002 9 or or CC 40404 4002 10 spiral spiral JJ 40404 4002 11 ; ; : 40404 4002 12 some some DT 40404 4002 13 were be VBD 40404 4002 14 single single JJ 40404 4002 15 stemmed stemmed NN 40404 4002 16 , , , 40404 4002 17 and and CC 40404 4002 18 others other NNS 40404 4002 19 consisted consist VBD 40404 4002 20 of of IN 40404 4002 21 several several JJ 40404 4002 22 radial radial JJ 40404 4002 23 stems stem VBZ 40404 4002 24 united unite VBN 40404 4002 25 . . . 40404 4003 1 Graptolites graptolite NNS 40404 4003 2 occur occur VBP 40404 4003 3 but but CC 40404 4003 4 rarely rarely RB 40404 4003 5 in in IN 40404 4003 6 the the DT 40404 4003 7 Upper Upper NNP 40404 4003 8 Cambrian Cambrian NNP 40404 4003 9 . . . 40404 4004 1 In in IN 40404 4004 2 the the DT 40404 4004 3 Ordovician ordovician JJ 40404 4004 4 and and CC 40404 4004 5 Silurian silurian JJ 40404 4004 6 they -PRON- PRP 40404 4004 7 are be VBP 40404 4004 8 very very RB 40404 4004 9 plentiful plentiful JJ 40404 4004 10 , , , 40404 4004 11 and and CC 40404 4004 12 at at IN 40404 4004 13 the the DT 40404 4004 14 close close NN 40404 4004 15 of of IN 40404 4004 16 the the DT 40404 4004 17 Silurian Silurian NNP 40404 4004 18 they -PRON- PRP 40404 4004 19 pass pass VBP 40404 4004 20 out out IN 40404 4004 21 of of IN 40404 4004 22 existence existence NN 40404 4004 23 , , , 40404 4004 24 never never RB 40404 4004 25 to to TO 40404 4004 26 return return VB 40404 4004 27 . . . 40404 4005 1 = = NFP 40404 4005 2 Corals= corals= NN 40404 4005 3 are be VBP 40404 4005 4 very very RB 40404 4005 5 rarely rarely RB 40404 4005 6 found find VBN 40404 4005 7 in in IN 40404 4005 8 the the DT 40404 4005 9 Cambrian Cambrian NNP 40404 4005 10 , , , 40404 4005 11 and and CC 40404 4005 12 the the DT 40404 4005 13 description description NN 40404 4005 14 of of IN 40404 4005 15 their -PRON- PRP$ 40404 4005 16 primitive primitive JJ 40404 4005 17 types type NNS 40404 4005 18 is be VBZ 40404 4005 19 postponed postpone VBN 40404 4005 20 to to IN 40404 4005 21 later later JJ 40404 4005 22 chapters chapter NNS 40404 4005 23 treating treat VBG 40404 4005 24 of of IN 40404 4005 25 periods period NNS 40404 4005 26 when when WRB 40404 4005 27 they -PRON- PRP 40404 4005 28 became become VBD 40404 4005 29 more more RBR 40404 4005 30 numerous numerous JJ 40404 4005 31 . . . 40404 4006 1 = = NFP 40404 4006 2 Echinoderms.= Echinoderms.= NNP 40404 4006 3 This this DT 40404 4006 4 subkingdom subkingdom NN 40404 4006 5 comprises comprise VBZ 40404 4006 6 at at IN 40404 4006 7 present present JJ 40404 4006 8 such such JJ 40404 4006 9 familiar familiar JJ 40404 4006 10 forms form NNS 40404 4006 11 as as IN 40404 4006 12 the the DT 40404 4006 13 crinoid crinoid NN 40404 4006 14 , , , 40404 4006 15 the the DT 40404 4006 16 starfish starfish NN 40404 4006 17 , , , 40404 4006 18 and and CC 40404 4006 19 the the DT 40404 4006 20 sea sea NN 40404 4006 21 urchin urchin NN 40404 4006 22 . . . 40404 4007 1 The the DT 40404 4007 2 structure structure NN 40404 4007 3 of of IN 40404 4007 4 echinoderms echinoderm NNS 40404 4007 5 is be VBZ 40404 4007 6 radiate radiate JJ 40404 4007 7 . . . 40404 4008 1 Their -PRON- PRP$ 40404 4008 2 integument integument NN 40404 4008 3 is be VBZ 40404 4008 4 hardened harden VBN 40404 4008 5 with with IN 40404 4008 6 plates plate NNS 40404 4008 7 or or CC 40404 4008 8 particles particle NNS 40404 4008 9 of of IN 40404 4008 10 carbonate carbonate NN 40404 4008 11 of of IN 40404 4008 12 lime lime NN 40404 4008 13 . . . 40404 4009 1 [ [ -LRB- 40404 4009 2 Illustration illustration NN 40404 4009 3 : : : 40404 4009 4 Fig Fig NNP 40404 4009 5 . . . 40404 4010 1 267 267 CD 40404 4010 2 . . . 40404 4011 1 Cystoids Cystoids NNP 40404 4011 2 , , , 40404 4011 3 one one CD 40404 4011 4 showing show VBG 40404 4011 5 Two two CD 40404 4011 6 Rudimentary Rudimentary NNP 40404 4011 7 Arms Arms NNP 40404 4011 8 ] ] -RRB- 40404 4011 9 Of of IN 40404 4011 10 the the DT 40404 4011 11 free free JJ 40404 4011 12 echinoderms echinoderm NNS 40404 4011 13 , , , 40404 4011 14 such such JJ 40404 4011 15 as as IN 40404 4011 16 the the DT 40404 4011 17 starfish starfish NN 40404 4011 18 and and CC 40404 4011 19 the the DT 40404 4011 20 sea sea NN 40404 4011 21 urchin urchin NN 40404 4011 22 , , , 40404 4011 23 the the DT 40404 4011 24 former former NN 40404 4011 25 has have VBZ 40404 4011 26 been be VBN 40404 4011 27 found find VBN 40404 4011 28 in in IN 40404 4011 29 the the DT 40404 4011 30 Cambrian cambrian JJ 40404 4011 31 rocks rock NNS 40404 4011 32 of of IN 40404 4011 33 Europe Europe NNP 40404 4011 34 , , , 40404 4011 35 but but CC 40404 4011 36 neither neither DT 40404 4011 37 have have VBP 40404 4011 38 so so RB 40404 4011 39 far far RB 40404 4011 40 been be VBN 40404 4011 41 discovered discover VBN 40404 4011 42 in in IN 40404 4011 43 the the DT 40404 4011 44 strata strata NN 40404 4011 45 of of IN 40404 4011 46 this this DT 40404 4011 47 period period NN 40404 4011 48 in in IN 40404 4011 49 North North NNP 40404 4011 50 America America NNP 40404 4011 51 . . . 40404 4012 1 The the DT 40404 4012 2 stemmed stemmed JJ 40404 4012 3 and and CC 40404 4012 4 lower low JJR 40404 4012 5 division division NN 40404 4012 6 of of IN 40404 4012 7 the the DT 40404 4012 8 echinoderms echinoderm NNS 40404 4012 9 was be VBD 40404 4012 10 represented represent VBN 40404 4012 11 by by IN 40404 4012 12 a a DT 40404 4012 13 primitive primitive JJ 40404 4012 14 type type NN 40404 4012 15 , , , 40404 4012 16 the the DT 40404 4012 17 _ _ NNP 40404 4012 18 cystoid cystoid NN 40404 4012 19 _ _ NNP 40404 4012 20 , , , 40404 4012 21 so so RB 40404 4012 22 called call VBD 40404 4012 23 from from IN 40404 4012 24 its -PRON- PRP$ 40404 4012 25 saclike saclike NN 40404 4012 26 form form NN 40404 4012 27 , , , 40404 4012 28 A a DT 40404 4012 29 small small JJ 40404 4012 30 globular globular JJ 40404 4012 31 or or CC 40404 4012 32 ovate ovate JJ 40404 4012 33 " " `` 40404 4012 34 calyx calyx NN 40404 4012 35 " " '' 40404 4012 36 of of IN 40404 4012 37 calcareous calcareous JJ 40404 4012 38 plates plate NNS 40404 4012 39 , , , 40404 4012 40 with with IN 40404 4012 41 an an DT 40404 4012 42 aperture aperture NN 40404 4012 43 at at IN 40404 4012 44 the the DT 40404 4012 45 top top NN 40404 4012 46 for for IN 40404 4012 47 the the DT 40404 4012 48 mouth mouth NN 40404 4012 49 , , , 40404 4012 50 inclosed inclose VBD 40404 4012 51 the the DT 40404 4012 52 body body NN 40404 4012 53 of of IN 40404 4012 54 the the DT 40404 4012 55 animal animal NN 40404 4012 56 , , , 40404 4012 57 and and CC 40404 4012 58 was be VBD 40404 4012 59 attached attach VBN 40404 4012 60 to to IN 40404 4012 61 the the DT 40404 4012 62 sea sea NN 40404 4012 63 bottom bottom NN 40404 4012 64 by by IN 40404 4012 65 a a DT 40404 4012 66 short short JJ 40404 4012 67 flexible flexible JJ 40404 4012 68 stalk stalk NN 40404 4012 69 consisting consisting NN 40404 4012 70 of of IN 40404 4012 71 disks disk NNS 40404 4012 72 of of IN 40404 4012 73 carbonate carbonate NN 40404 4012 74 of of IN 40404 4012 75 lime lime NN 40404 4012 76 held hold VBN 40404 4012 77 together together RB 40404 4012 78 by by IN 40404 4012 79 a a DT 40404 4012 80 central central JJ 40404 4012 81 ligament ligament NN 40404 4012 82 . . . 40404 4013 1 = = NFP 40404 4013 2 Arthropods.= Arthropods.= NNP 40404 4013 3 These these DT 40404 4013 4 segmented segment VBD 40404 4013 5 animals animal NNS 40404 4013 6 with with IN 40404 4013 7 " " `` 40404 4013 8 jointed jointed JJ 40404 4013 9 feet foot NNS 40404 4013 10 , , , 40404 4013 11 " " '' 40404 4013 12 as as IN 40404 4013 13 their -PRON- PRP$ 40404 4013 14 name name NN 40404 4013 15 suggests suggest VBZ 40404 4013 16 , , , 40404 4013 17 may may MD 40404 4013 18 be be VB 40404 4013 19 divided divide VBN 40404 4013 20 in in IN 40404 4013 21 a a DT 40404 4013 22 general general JJ 40404 4013 23 way way NN 40404 4013 24 into into IN 40404 4013 25 water water NN 40404 4013 26 breathers breather NNS 40404 4013 27 and and CC 40404 4013 28 air air NN 40404 4013 29 breathers breather NNS 40404 4013 30 . . . 40404 4014 1 The the DT 40404 4014 2 first first RB 40404 4014 3 - - HYPH 40404 4014 4 named name VBN 40404 4014 5 and and CC 40404 4014 6 lower low JJR 40404 4014 7 division division NN 40404 4014 8 comprises comprise VBZ 40404 4014 9 the the DT 40404 4014 10 class class NN 40404 4014 11 of of IN 40404 4014 12 the the DT 40404 4014 13 _ _ NNP 40404 4014 14 Crustacea_,--arthropods crustacea_,--arthropod NNS 40404 4014 15 protected protect VBN 40404 4014 16 by by IN 40404 4014 17 a a DT 40404 4014 18 hard hard JJ 40404 4014 19 exterior exterior NNP 40404 4014 20 skeleton skeleton NN 40404 4014 21 , , , 40404 4014 22 or or CC 40404 4014 23 " " `` 40404 4014 24 crust,"--of crust,"--of CD 40404 4014 25 which which WDT 40404 4014 26 crabs crab VBZ 40404 4014 27 , , , 40404 4014 28 crayfish crayfish NN 40404 4014 29 , , , 40404 4014 30 and and CC 40404 4014 31 lobsters lobster NNS 40404 4014 32 are be VBP 40404 4014 33 familiar familiar JJ 40404 4014 34 examples example NNS 40404 4014 35 . . . 40404 4015 1 The the DT 40404 4015 2 higher high JJR 40404 4015 3 division division NN 40404 4015 4 , , , 40404 4015 5 that that DT 40404 4015 6 of of IN 40404 4015 7 the the DT 40404 4015 8 air air NN 40404 4015 9 breathers breather NNS 40404 4015 10 , , , 40404 4015 11 includes include VBZ 40404 4015 12 the the DT 40404 4015 13 following follow VBG 40404 4015 14 classes class NNS 40404 4015 15 : : : 40404 4015 16 spiders spider NNS 40404 4015 17 , , , 40404 4015 18 scorpions scorpion NNS 40404 4015 19 , , , 40404 4015 20 centipedes centipede NNS 40404 4015 21 , , , 40404 4015 22 and and CC 40404 4015 23 insects insect NNS 40404 4015 24 . . . 40404 4016 1 = = NFP 40404 4016 2 The the DT 40404 4016 3 trilobite.= trilobite.= NN 40404 4016 4 The the DT 40404 4016 5 aquatic aquatic JJ 40404 4016 6 arthropods arthropod NNS 40404 4016 7 , , , 40404 4016 8 the the DT 40404 4016 9 Crustacea Crustacea NNP 40404 4016 10 , , , 40404 4016 11 culminated culminate VBD 40404 4016 12 before before IN 40404 4016 13 the the DT 40404 4016 14 air air NN 40404 4016 15 breathers breather NNS 40404 4016 16 ; ; : 40404 4016 17 and and CC 40404 4016 18 while while IN 40404 4016 19 none none NN 40404 4016 20 of of IN 40404 4016 21 the the DT 40404 4016 22 latter latter JJ 40404 4016 23 are be VBP 40404 4016 24 found find VBN 40404 4016 25 in in IN 40404 4016 26 the the DT 40404 4016 27 Cambrian Cambrian NNP 40404 4016 28 , , , 40404 4016 29 the the DT 40404 4016 30 former former JJ 40404 4016 31 were be VBD 40404 4016 32 the the DT 40404 4016 33 dominant dominant JJ 40404 4016 34 life life NN 40404 4016 35 of of IN 40404 4016 36 the the DT 40404 4016 37 time time NN 40404 4016 38 in in IN 40404 4016 39 numbers number NNS 40404 4016 40 , , , 40404 4016 41 in in IN 40404 4016 42 size size NN 40404 4016 43 , , , 40404 4016 44 and and CC 40404 4016 45 in in IN 40404 4016 46 the the DT 40404 4016 47 variety variety NN 40404 4016 48 of of IN 40404 4016 49 their -PRON- PRP$ 40404 4016 50 forms form NNS 40404 4016 51 . . . 40404 4017 1 The the DT 40404 4017 2 leading lead VBG 40404 4017 3 crustacean crustacean JJ 40404 4017 4 type type NN 40404 4017 5 is be VBZ 40404 4017 6 the the DT 40404 4017 7 _ _ NNP 40404 4017 8 trilobite trilobite NN 40404 4017 9 _ _ NNP 40404 4017 10 , , , 40404 4017 11 which which WDT 40404 4017 12 takes take VBZ 40404 4017 13 its -PRON- PRP$ 40404 4017 14 name name NN 40404 4017 15 from from IN 40404 4017 16 the the DT 40404 4017 17 three three CD 40404 4017 18 lobes lobe NNS 40404 4017 19 into into IN 40404 4017 20 which which WDT 40404 4017 21 its -PRON- PRP$ 40404 4017 22 shell shell NN 40404 4017 23 is be VBZ 40404 4017 24 divided divide VBN 40404 4017 25 longitudinally longitudinally RB 40404 4017 26 . . . 40404 4018 1 There there EX 40404 4018 2 are be VBP 40404 4018 3 also also RB 40404 4018 4 three three CD 40404 4018 5 cross cross VB 40404 4018 6 divisions,--the divisions,--the DT 40404 4018 7 head head NN 40404 4018 8 shield shield NN 40404 4018 9 , , , 40404 4018 10 the the DT 40404 4018 11 tail tail NN 40404 4018 12 shield shield NN 40404 4018 13 , , , 40404 4018 14 and and CC 40404 4018 15 between between IN 40404 4018 16 the the DT 40404 4018 17 two two CD 40404 4018 18 the the DT 40404 4018 19 thorax thorax NN 40404 4018 20 , , , 40404 4018 21 consisting consist VBG 40404 4018 22 of of IN 40404 4018 23 a a DT 40404 4018 24 number number NN 40404 4018 25 of of IN 40404 4018 26 distinct distinct JJ 40404 4018 27 and and CC 40404 4018 28 unconsolidated unconsolidated JJ 40404 4018 29 segments segment NNS 40404 4018 30 . . . 40404 4019 1 The the DT 40404 4019 2 head head NN 40404 4019 3 shield shield NN 40404 4019 4 carries carry VBZ 40404 4019 5 a a DT 40404 4019 6 pair pair NN 40404 4019 7 of of IN 40404 4019 8 large large JJ 40404 4019 9 , , , 40404 4019 10 crescentic crescentic JJ 40404 4019 11 , , , 40404 4019 12 compound compound JJ 40404 4019 13 eyes eye NNS 40404 4019 14 , , , 40404 4019 15 like like IN 40404 4019 16 those those DT 40404 4019 17 of of IN 40404 4019 18 the the DT 40404 4019 19 insect insect NN 40404 4019 20 . . . 40404 4020 1 The the DT 40404 4020 2 eye eye NN 40404 4020 3 varies vary VBZ 40404 4020 4 greatly greatly RB 40404 4020 5 in in IN 40404 4020 6 the the DT 40404 4020 7 number number NN 40404 4020 8 of of IN 40404 4020 9 its -PRON- PRP$ 40404 4020 10 lenses lense NNS 40404 4020 11 , , , 40404 4020 12 ranging range VBG 40404 4020 13 from from IN 40404 4020 14 fourteen fourteen CD 40404 4020 15 in in IN 40404 4020 16 some some DT 40404 4020 17 species specie NNS 40404 4020 18 to to IN 40404 4020 19 fifteen fifteen CD 40404 4020 20 thousand thousand CD 40404 4020 21 in in IN 40404 4020 22 others other NNS 40404 4020 23 . . . 40404 4021 1 Figure figure NN 40404 4021 2 268 268 CD 40404 4021 3 , , , 40404 4021 4 C C NNP 40404 4021 5 , , , 40404 4021 6 is be VBZ 40404 4021 7 a a DT 40404 4021 8 restoration restoration NN 40404 4021 9 of of IN 40404 4021 10 the the DT 40404 4021 11 trilobite trilobite NN 40404 4021 12 , , , 40404 4021 13 and and CC 40404 4021 14 shows show VBZ 40404 4021 15 the the DT 40404 4021 16 appendages appendage NNS 40404 4021 17 , , , 40404 4021 18 which which WDT 40404 4021 19 are be VBP 40404 4021 20 found find VBN 40404 4021 21 preserved preserve VBN 40404 4021 22 only only RB 40404 4021 23 in in IN 40404 4021 24 the the DT 40404 4021 25 rarest rare JJS 40404 4021 26 cases case NNS 40404 4021 27 . . . 40404 4022 1 [ [ -LRB- 40404 4022 2 Illustration illustration NN 40404 4022 3 : : : 40404 4022 4 Fig Fig NNP 40404 4022 5 . . . 40404 4023 1 268 268 CD 40404 4023 2 . . . 40404 4024 1 Trilobites Trilobites NNP 40404 4024 2 A a NN 40404 4024 3 , , , 40404 4024 4 a a DT 40404 4024 5 Cambrian cambrian JJ 40404 4024 6 species specie NNS 40404 4024 7 ; ; : 40404 4024 8 B b NN 40404 4024 9 , , , 40404 4024 10 a a DT 40404 4024 11 Devonian Devonian NNP 40404 4024 12 species specie NNS 40404 4024 13 showing show VBG 40404 4024 14 eyes eye NNS 40404 4024 15 ; ; : 40404 4024 16 C C NNP 40404 4024 17 , , , 40404 4024 18 restoration restoration NN 40404 4024 19 of of IN 40404 4024 20 an an DT 40404 4024 21 Ordovician ordovician JJ 40404 4024 22 species species NN 40404 4024 23 ] ] -RRB- 40404 4024 24 During during IN 40404 4024 25 the the DT 40404 4024 26 long long JJ 40404 4024 27 ages age NNS 40404 4024 28 of of IN 40404 4024 29 the the DT 40404 4024 30 Cambrian cambrian JJ 40404 4024 31 the the DT 40404 4024 32 trilobite trilobite NN 40404 4024 33 varied vary VBD 40404 4024 34 greatly greatly RB 40404 4024 35 . . . 40404 4025 1 Again again RB 40404 4025 2 and and CC 40404 4025 3 again again RB 40404 4025 4 new new JJ 40404 4025 5 species specie NNS 40404 4025 6 and and CC 40404 4025 7 genera genera NN 40404 4025 8 appeared appear VBD 40404 4025 9 , , , 40404 4025 10 while while IN 40404 4025 11 the the DT 40404 4025 12 older old JJR 40404 4025 13 types type NNS 40404 4025 14 became become VBD 40404 4025 15 extinct extinct JJ 40404 4025 16 . . . 40404 4026 1 For for IN 40404 4026 2 this this DT 40404 4026 3 reason reason NN 40404 4026 4 and and CC 40404 4026 5 because because IN 40404 4026 6 of of IN 40404 4026 7 their -PRON- PRP$ 40404 4026 8 abundance abundance NN 40404 4026 9 , , , 40404 4026 10 trilobites trilobite NNS 40404 4026 11 are be VBP 40404 4026 12 used use VBN 40404 4026 13 in in IN 40404 4026 14 the the DT 40404 4026 15 classification classification NN 40404 4026 16 of of IN 40404 4026 17 the the DT 40404 4026 18 Cambrian cambrian JJ 40404 4026 19 system system NN 40404 4026 20 . . . 40404 4027 1 The the DT 40404 4027 2 Lower low JJR 40404 4027 3 Cambrian Cambrian NNP 40404 4027 4 is be VBZ 40404 4027 5 characterized characterize VBN 40404 4027 6 by by IN 40404 4027 7 the the DT 40404 4027 8 presence presence NN 40404 4027 9 of of IN 40404 4027 10 a a DT 40404 4027 11 trilobitic trilobitic JJ 40404 4027 12 fauna fauna NNS 40404 4027 13 in in IN 40404 4027 14 which which WDT 40404 4027 15 the the DT 40404 4027 16 genus genus JJ 40404 4027 17 Olenellus Olenellus NNP 40404 4027 18 is be VBZ 40404 4027 19 predominant predominant JJ 40404 4027 20 . . . 40404 4028 1 This this DT 40404 4028 2 , , , 40404 4028 3 the the DT 40404 4028 4 _ _ NNP 40404 4028 5 Olenellus Olenellus NNP 40404 4028 6 Zone Zone NNP 40404 4028 7 _ _ NNP 40404 4028 8 , , , 40404 4028 9 is be VBZ 40404 4028 10 one one CD 40404 4028 11 of of IN 40404 4028 12 the the DT 40404 4028 13 most most RBS 40404 4028 14 important important JJ 40404 4028 15 platforms platform NNS 40404 4028 16 in in IN 40404 4028 17 the the DT 40404 4028 18 entire entire JJ 40404 4028 19 geological geological JJ 40404 4028 20 series series NN 40404 4028 21 ; ; : 40404 4028 22 for for IN 40404 4028 23 , , , 40404 4028 24 the the DT 40404 4028 25 world world NN 40404 4028 26 over over RP 40404 4028 27 , , , 40404 4028 28 it -PRON- PRP 40404 4028 29 marks mark VBZ 40404 4028 30 the the DT 40404 4028 31 beginning beginning NN 40404 4028 32 of of IN 40404 4028 33 Paleozoic paleozoic JJ 40404 4028 34 time time NN 40404 4028 35 , , , 40404 4028 36 while while IN 40404 4028 37 all all DT 40404 4028 38 underlying underlying JJ 40404 4028 39 strata strata NN 40404 4028 40 are be VBP 40404 4028 41 classified classify VBN 40404 4028 42 as as IN 40404 4028 43 pre pre JJ 40404 4028 44 - - JJ 40404 4028 45 Cambrian cambrian JJ 40404 4028 46 . . . 40404 4029 1 The the DT 40404 4029 2 Middle Middle NNP 40404 4029 3 Cambrian Cambrian NNP 40404 4029 4 is be VBZ 40404 4029 5 marked mark VBN 40404 4029 6 by by IN 40404 4029 7 the the DT 40404 4029 8 genus genus NNP 40404 4029 9 Paradoxides Paradoxides NNPS 40404 4029 10 , , , 40404 4029 11 and and CC 40404 4029 12 the the DT 40404 4029 13 Upper Upper NNP 40404 4029 14 Cambrian Cambrian NNP 40404 4029 15 by by IN 40404 4029 16 the the DT 40404 4029 17 genus genus NNP 40404 4029 18 Olenus Olenus NNP 40404 4029 19 . . . 40404 4030 1 Some some DT 40404 4030 2 of of IN 40404 4030 3 the the DT 40404 4030 4 Cambrian cambrian JJ 40404 4030 5 trilobites trilobite NNS 40404 4030 6 were be VBD 40404 4030 7 giants giant NNS 40404 4030 8 , , , 40404 4030 9 measuring measure VBG 40404 4030 10 as as RB 40404 4030 11 much much JJ 40404 4030 12 as as IN 40404 4030 13 two two CD 40404 4030 14 feet foot NNS 40404 4030 15 long long JJ 40404 4030 16 , , , 40404 4030 17 while while IN 40404 4030 18 others other NNS 40404 4030 19 were be VBD 40404 4030 20 the the DT 40404 4030 21 smallest small JJS 40404 4030 22 of of IN 40404 4030 23 their -PRON- PRP$ 40404 4030 24 kind kind NN 40404 4030 25 , , , 40404 4030 26 a a DT 40404 4030 27 fraction fraction NN 40404 4030 28 of of IN 40404 4030 29 an an DT 40404 4030 30 inch inch NN 40404 4030 31 in in IN 40404 4030 32 length length NN 40404 4030 33 . . . 40404 4031 1 Another another DT 40404 4031 2 type type NN 40404 4031 3 of of IN 40404 4031 4 crustacean crustacean NN 40404 4031 5 which which WDT 40404 4031 6 lived live VBD 40404 4031 7 in in IN 40404 4031 8 the the DT 40404 4031 9 Cambrian cambrian JJ 40404 4031 10 and and CC 40404 4031 11 whose whose WP$ 40404 4031 12 order order NN 40404 4031 13 is be VBZ 40404 4031 14 still still RB 40404 4031 15 living live VBG 40404 4031 16 is be VBZ 40404 4031 17 illustrated illustrate VBN 40404 4031 18 in in IN 40404 4031 19 Figure Figure NNP 40404 4031 20 269 269 CD 40404 4031 21 . . . 40404 4032 1 [ [ -LRB- 40404 4032 2 Illustration illustration NN 40404 4032 3 : : : 40404 4032 4 Fig Fig NNP 40404 4032 5 . . . 40404 4033 1 269 269 CD 40404 4033 2 . . . 40404 4034 1 A a DT 40404 4034 2 Phyllopod Phyllopod NNP 40404 4034 3 ] ] -RRB- 40404 4034 4 = = NFP 40404 4034 5 Worms.= worms.= CD 40404 4034 6 Trails trail NNS 40404 4034 7 and and CC 40404 4034 8 burrows burrow NNS 40404 4034 9 of of IN 40404 4034 10 worms worm NNS 40404 4034 11 have have VBP 40404 4034 12 been be VBN 40404 4034 13 left leave VBN 40404 4034 14 on on IN 40404 4034 15 the the DT 40404 4034 16 sea sea NN 40404 4034 17 beaches beach NNS 40404 4034 18 and and CC 40404 4034 19 mud mud NN 40404 4034 20 flats flat NNS 40404 4034 21 of of IN 40404 4034 22 all all DT 40404 4034 23 geological geological JJ 40404 4034 24 times time NNS 40404 4034 25 from from IN 40404 4034 26 the the DT 40404 4034 27 Algonkian Algonkian NNP 40404 4034 28 to to IN 40404 4034 29 the the DT 40404 4034 30 present present NN 40404 4034 31 . . . 40404 4035 1 = = NFP 40404 4035 2 Brachiopods.= brachiopods.= VB 40404 4035 3 These these DT 40404 4035 4 soft soft JJ 40404 4035 5 - - HYPH 40404 4035 6 bodied bodied JJ 40404 4035 7 animals animal NNS 40404 4035 8 , , , 40404 4035 9 with with IN 40404 4035 10 bivalve bivalve NN 40404 4035 11 shells shell NNS 40404 4035 12 and and CC 40404 4035 13 two two CD 40404 4035 14 interior interior JJ 40404 4035 15 armlike armlike NN 40404 4035 16 processes process NNS 40404 4035 17 which which WDT 40404 4035 18 served serve VBD 40404 4035 19 for for IN 40404 4035 20 breathing breathing NN 40404 4035 21 , , , 40404 4035 22 appeared appear VBD 40404 4035 23 in in IN 40404 4035 24 the the DT 40404 4035 25 Algonkian Algonkian NNP 40404 4035 26 , , , 40404 4035 27 and and CC 40404 4035 28 had have VBD 40404 4035 29 now now RB 40404 4035 30 become become VBN 40404 4035 31 very very RB 40404 4035 32 abundant abundant JJ 40404 4035 33 . . . 40404 4036 1 The the DT 40404 4036 2 two two CD 40404 4036 3 valves valve NNS 40404 4036 4 of of IN 40404 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4038 43 . . . 40404 4039 1 [ [ -LRB- 40404 4039 2 Illustration illustration NN 40404 4039 3 : : : 40404 4039 4 Fig Fig NNP 40404 4039 5 . . . 40404 4040 1 270 270 CD 40404 4040 2 . . . 40404 4041 1 A a DT 40404 4041 2 Cambrian cambrian JJ 40404 4041 3 Articulate Articulate NNP 40404 4041 4 Brachiopod Brachiopod NNP 40404 4041 5 , , , 40404 4041 6 Orthis Orthis NNP 40404 4041 7 ] ] -RRB- 40404 4041 8 [ [ -LRB- 40404 4041 9 Illustration illustration NN 40404 4041 10 : : : 40404 4041 11 Fig Fig NNP 40404 4041 12 . . . 40404 4042 1 271 271 CD 40404 4042 2 . . . 40404 4043 1 Cambrian Cambrian NNP 40404 4043 2 Inarticulate Inarticulate NNP 40404 4043 3 Brachiopods Brachiopods NNPS 40404 4043 4 A A NNP 40404 4043 5 , , , 40404 4043 6 Lingulella lingulella NN 40404 4043 7 ; ; , 40404 4043 8 B B NNP 40404 4043 9 , , , 40404 4043 10 Discina Discina NNP 40404 4043 11 ] ] -RRB- 40404 4043 12 Brachiopods brachiopod NNS 40404 4043 13 include include VBP 40404 4043 14 two two CD 40404 4043 15 orders 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40404 4044 37 phosphate phosphate NN 40404 4044 38 of of IN 40404 4044 39 lime lime NN 40404 4044 40 . . . 40404 4045 1 The the DT 40404 4045 2 _ _ NNP 40404 4045 3 Discina Discina NNP 40404 4045 4 _ _ NNP 40404 4045 5 , , , 40404 4045 6 which which WDT 40404 4045 7 began begin VBD 40404 4045 8 in in IN 40404 4045 9 the the DT 40404 4045 10 Algonkian Algonkian NNP 40404 4045 11 , , , 40404 4045 12 is be VBZ 40404 4045 13 of of IN 40404 4045 14 this this DT 40404 4045 15 type type NN 40404 4045 16 , , , 40404 4045 17 as as IN 40404 4045 18 is be VBZ 40404 4045 19 also also RB 40404 4045 20 the the DT 40404 4045 21 _ _ NNP 40404 4045 22 Lingulella Lingulella NNP 40404 4045 23 _ _ NNP 40404 4045 24 of of IN 40404 4045 25 the the DT 40404 4045 26 Cambrian Cambrian NNP 40404 4045 27 ( ( -LRB- 40404 4045 28 Fig fig NN 40404 4045 29 . . . 40404 4046 1 271 271 CD 40404 4046 2 ) ) -RRB- 40404 4046 3 . . . 40404 4047 1 Both both DT 40404 4047 2 of of IN 40404 4047 3 these these DT 40404 4047 4 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. 40404 4049 1 270 270 CD 40404 4049 2 ) ) -RRB- 40404 4049 3 . . . 40404 4050 1 In in IN 40404 4050 2 the the DT 40404 4050 3 Cambrian cambrian JJ 40404 4050 4 the the DT 40404 4050 5 inarticulates inarticulate NNS 40404 4050 6 predominate predominate VBP 40404 4050 7 , , , 40404 4050 8 though though IN 40404 4050 9 the the DT 40404 4050 10 articulates articulate NNS 40404 4050 11 grow grow VBP 40404 4050 12 common common JJ 40404 4050 13 toward toward IN 40404 4050 14 the the DT 40404 4050 15 end end NN 40404 4050 16 of of IN 40404 4050 17 the the DT 40404 4050 18 period period NN 40404 4050 19 . . . 40404 4051 1 = = NFP 40404 4051 2 Mollusks.= Mollusks.= NNP 40404 4051 3 The the DT 40404 4051 4 three three CD 40404 4051 5 chief chief JJ 40404 4051 6 classes class NNS 40404 4051 7 of of IN 40404 4051 8 mollusks mollusk NNS 40404 4051 9 -- -- : 40404 4051 10 the the DT 40404 4051 11 _ _ NNP 40404 4051 12 pelecypods pelecypod NNS 40404 4051 13 _ _ NNP 40404 4051 14 ( ( -LRB- 40404 4051 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40404 4051 53 , , , 40404 4051 54 cuttlefish cuttlefish JJ 40404 4051 55 , , , 40404 4051 56 and and CC 40404 4051 57 squids)--were squids)--were NNP 40404 4051 58 all all DT 40404 4051 59 represented represent VBD 40404 4051 60 in in IN 40404 4051 61 the the DT 40404 4051 62 Cambrian Cambrian NNP 40404 4051 63 , , , 40404 4051 64 although although IN 40404 4051 65 very very RB 40404 4051 66 sparingly sparingly RB 40404 4051 67 . . . 40404 4052 1 [ [ -LRB- 40404 4052 2 Illustration illustration NN 40404 4052 3 : : : 40404 4052 4 Fig Fig NNP 40404 4052 5 . . . 40404 4053 1 272 272 CD 40404 4053 2 . . . 40404 4054 1 A a DT 40404 4054 2 Cambrian cambrian JJ 40404 4054 3 Pelecypod Pelecypod NNP 40404 4054 4 ] ] -RRB- 40404 4054 5 [ [ -LRB- 40404 4054 6 Illustration illustration NN 40404 4054 7 : : : 40404 4054 8 Fig Fig NNP 40404 4054 9 . . . 40404 4055 1 273 273 CD 40404 4055 2 . . . 40404 4056 1 Gastropods Gastropods NNP 40404 4056 2 ] ] -RRB- 40404 4056 3 Pteropods Pteropods NNP 40404 4056 4 , , , 40404 4056 5 a a DT 40404 4056 6 suborder suborder NN 40404 4056 7 of of IN 40404 4056 8 the the DT 40404 4056 9 gastropods gastropod NNS 40404 4056 10 , , , 40404 4056 11 appeared appear VBD 40404 4056 12 in in IN 40404 4056 13 this this DT 40404 4056 14 age age NN 40404 4056 15 . . . 40404 4057 1 Their -PRON- PRP$ 40404 4057 2 papery papery NN 40404 4057 3 shells shell NNS 40404 4057 4 of of IN 40404 4057 5 carbonate carbonate NN 40404 4057 6 of of IN 40404 4057 7 lime lime NN 40404 4057 8 are be VBP 40404 4057 9 found find VBN 40404 4057 10 in in IN 40404 4057 11 great great JJ 40404 4057 12 numbers number NNS 40404 4057 13 from from IN 40404 4057 14 this this DT 40404 4057 15 time time NN 40404 4057 16 on on RP 40404 4057 17 . . . 40404 4058 1 [ [ -LRB- 40404 4058 2 Illustration illustration NN 40404 4058 3 : : : 40404 4058 4 Fig Fig NNP 40404 4058 5 . . . 40404 4059 1 274 274 CD 40404 4059 2 . . . 40404 4060 1 Cambrian cambrian JJ 40404 4060 2 Pteropods Pteropods NNP 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40404 4062 6 " " `` 40404 4062 7 body body NN 40404 4062 8 chamber chamber NN 40404 4062 9 " " '' 40404 4062 10 at at IN 40404 4062 11 the the DT 40404 4062 12 larger large JJR 40404 4062 13 end end NN 40404 4062 14 , , , 40404 4062 15 and and CC 40404 4062 16 walled wall VBD 40404 4062 17 off off RP 40404 4062 18 the the DT 40404 4062 19 other other JJ 40404 4062 20 chambers chamber NNS 40404 4062 21 from from IN 40404 4062 22 it -PRON- PRP 40404 4062 23 in in IN 40404 4062 24 succession succession NN 40404 4062 25 during during IN 40404 4062 26 the the DT 40404 4062 27 growth growth NN 40404 4062 28 of of IN 40404 4062 29 the the DT 40404 4062 30 shell shell NN 40404 4062 31 . . . 40404 4063 1 A a DT 40404 4063 2 central central JJ 40404 4063 3 tube tube NN 40404 4063 4 , , , 40404 4063 5 the the DT 40404 4063 6 _ _ NNP 40404 4063 7 siphuncle siphuncle NN 40404 4063 8 _ _ NNP 40404 4063 9 ( ( -LRB- 40404 4063 10 _ _ NNP 40404 4063 11 s s NNP 40404 4063 12 _ _ NNP 40404 4063 13 , , , 40404 4063 14 Fig Fig NNP 40404 4063 15 . . . 40404 4064 1 275 275 CD 40404 4064 2 , , , 40404 4064 3 _ _ NNP 40404 4064 4 B B NNP 40404 4064 5 _ _ NNP 40404 4064 6 ) ) -RRB- 40404 4064 7 , , , 40404 4064 8 passed pass VBD 40404 4064 9 through through RP 40404 4064 10 from from IN 40404 4064 11 the the DT 40404 4064 12 body body NN 40404 4064 13 chamber chamber NN 40404 4064 14 to to IN 40404 4064 15 the the DT 40404 4064 16 closed close VBN 40404 4064 17 tip tip NN 40404 4064 18 of of IN 40404 4064 19 the the DT 40404 4064 20 cone cone NN 40404 4064 21 . . . 40404 4065 1 [ [ -LRB- 40404 4065 2 Illustration illustration NN 40404 4065 3 : : : 40404 4065 4 Fig Fig NNP 40404 4065 5 . . . 40404 4066 1 275 275 CD 40404 4066 2 . . . 40404 4067 1 Orthoceras Orthoceras NNP 40404 4067 2 A A NNP 40404 4067 3 , , , 40404 4067 4 fossil fossil NN 40404 4067 5 ; ; : 40404 4067 6 B b NN 40404 4067 7 , , , 40404 4067 8 restoration restoration NN 40404 4067 9 ] ] -RRB- 40404 4067 10 The the DT 40404 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4073 12 period period NN 40404 4073 13 with with IN 40404 4073 14 little little JJ 40404 4073 15 interruption interruption NN 40404 4073 16 . . . 40404 4074 1 = = NFP 40404 4074 2 Subdivisions subdivision NNS 40404 4074 3 and and CC 40404 4074 4 distribution distribution NN 40404 4074 5 of of IN 40404 4074 6 strata.= strata.= CD 40404 4074 7 The the DT 40404 4074 8 Ordovician ordovician JJ 40404 4074 9 series series NN 40404 4074 10 , , , 40404 4074 11 as as IN 40404 4074 12 they -PRON- PRP 40404 4074 13 have have VBP 40404 4074 14 been be VBN 40404 4074 15 made make VBN 40404 4074 16 out out RP 40404 4074 17 in in IN 40404 4074 18 New New NNP 40404 4074 19 York York NNP 40404 4074 20 , , , 40404 4074 21 are be VBP 40404 4074 22 given give VBN 40404 4074 23 for for IN 40404 4074 24 reference reference NN 40404 4074 25 in in IN 40404 4074 26 the the DT 40404 4074 27 following follow VBG 40404 4074 28 table table NN 40404 4074 29 , , , 40404 4074 30 with with IN 40404 4074 31 the the DT 40404 4074 32 rocks rock NNS 40404 4074 33 of of IN 40404 4074 34 which which WDT 40404 4074 35 they -PRON- PRP 40404 4074 36 are be VBP 40404 4074 37 chiefly chiefly RB 40404 4074 38 composed compose VBN 40404 4074 39 : : : 40404 4074 40 5 5 CD 40404 4074 41 Hudson Hudson NNP 40404 4074 42 ..... ..... . 40404 4074 43 shales shale NNS 40404 4074 44 4 4 CD 40404 4074 45 Utica Utica NNP 40404 4074 46 ..... ..... . 40404 4074 47 shales shale VBZ 40404 4074 48 3 3 CD 40404 4074 49 Trenton Trenton NNP 40404 4074 50 ..... ..... . 40404 4074 51 limestones limestone VBZ 40404 4074 52 2 2 CD 40404 4074 53 Chazy Chazy NNP 40404 4074 54 ..... ..... NFP 40404 4074 55 limestones limestone VBZ 40404 4074 56 1 1 CD 40404 4074 57 Calciferous calciferous JJ 40404 4074 58 ..... ..... HYPH 40404 4074 59 sandy sandy NNP 40404 4074 60 limestones limestone VBZ 40404 4074 61 These these DT 40404 4074 62 marine marine JJ 40404 4074 63 formations formation NNS 40404 4074 64 of of IN 40404 4074 65 the the DT 40404 4074 66 Ordovician ordovician JJ 40404 4074 67 outcrop outcrop NN 40404 4074 68 about about IN 40404 4074 69 the the DT 40404 4074 70 Cambrian cambrian JJ 40404 4074 71 and and CC 40404 4074 72 pre pre JJ 40404 4074 73 - - JJ 40404 4074 74 Cambrian cambrian JJ 40404 4074 75 areas area NNS 40404 4074 76 , , , 40404 4074 77 and and CC 40404 4074 78 , , , 40404 4074 79 as as IN 40404 4074 80 borings boring NNS 40404 4074 81 show show VBP 40404 4074 82 , , , 40404 4074 83 extend extend VBP 40404 4074 84 far far RB 40404 4074 85 and and CC 40404 4074 86 wide wide RB 40404 4074 87 over over IN 40404 4074 88 the the DT 40404 4074 89 interior interior NN 40404 4074 90 of of IN 40404 4074 91 the the DT 40404 4074 92 continent continent NN 40404 4074 93 beneath beneath IN 40404 4074 94 more more JJR 40404 4074 95 recent recent JJ 40404 4074 96 strata strata NN 40404 4074 97 . . . 40404 4075 1 The the DT 40404 4075 2 Ordovician ordovician JJ 40404 4075 3 sea sea NN 40404 4075 4 stretched stretch VBD 40404 4075 5 from from IN 40404 4075 6 Appalachia Appalachia NNP 40404 4075 7 across across IN 40404 4075 8 the the DT 40404 4075 9 Mississippi Mississippi NNP 40404 4075 10 valley valley NN 40404 4075 11 . . . 40404 4076 1 It -PRON- PRP 40404 4076 2 seems seem VBZ 40404 4076 3 to to TO 40404 4076 4 have have VB 40404 4076 5 extended extend VBN 40404 4076 6 to to IN 40404 4076 7 California California NNP 40404 4076 8 , , , 40404 4076 9 although although IN 40404 4076 10 broken break VBN 40404 4076 11 probably probably RB 40404 4076 12 by by IN 40404 4076 13 several several JJ 40404 4076 14 mountainous mountainous JJ 40404 4076 15 islands island NNS 40404 4076 16 in in IN 40404 4076 17 the the DT 40404 4076 18 west west NN 40404 4076 19 . . . 40404 4077 1 = = NFP 40404 4077 2 Physical physical JJ 40404 4077 3 geography.= geography.= NNS 40404 4077 4 The the DT 40404 4077 5 physical physical JJ 40404 4077 6 history history NN 40404 4077 7 of of IN 40404 4077 8 the the DT 40404 4077 9 period period NN 40404 4077 10 is be VBZ 40404 4077 11 recorded record VBN 40404 4077 12 in in IN 40404 4077 13 the the DT 40404 4077 14 succession succession NN 40404 4077 15 of of IN 40404 4077 16 its -PRON- PRP$ 40404 4077 17 formations formation NNS 40404 4077 18 . . . 40404 4078 1 The the DT 40404 4078 2 sandstones sandstone NNS 40404 4078 3 of of IN 40404 4078 4 the the DT 40404 4078 5 Upper Upper NNP 40404 4078 6 Cambrian Cambrian NNP 40404 4078 7 , , , 40404 4078 8 as as IN 40404 4078 9 we -PRON- PRP 40404 4078 10 have have VBP 40404 4078 11 learned learn VBN 40404 4078 12 , , , 40404 4078 13 tell tell VB 40404 4078 14 of of IN 40404 4078 15 a a DT 40404 4078 16 transgressing transgressing NN 40404 4078 17 sea sea NN 40404 4078 18 which which WDT 40404 4078 19 gradually gradually RB 40404 4078 20 came come VBD 40404 4078 21 to to TO 40404 4078 22 occupy occupy VB 40404 4078 23 the the DT 40404 4078 24 Mississippi Mississippi NNP 40404 4078 25 valley valley NN 40404 4078 26 and and CC 40404 4078 27 the the DT 40404 4078 28 interior interior NN 40404 4078 29 of of IN 40404 4078 30 North North NNP 40404 4078 31 America America NNP 40404 4078 32 . . . 40404 4079 1 The the DT 40404 4079 2 limestones limestone NNS 40404 4079 3 of of IN 40404 4079 4 the the DT 40404 4079 5 early early JJ 40404 4079 6 and and CC 40404 4079 7 middle middle JJ 40404 4079 8 Ordovician ordovician JJ 40404 4079 9 show show NN 40404 4079 10 that that WDT 40404 4079 11 now now RB 40404 4079 12 the the DT 40404 4079 13 shore shore NN 40404 4079 14 had have VBD 40404 4079 15 become become VBN 40404 4079 16 remote remote JJ 40404 4079 17 and and CC 40404 4079 18 the the DT 40404 4079 19 lands land NNS 40404 4079 20 had have VBD 40404 4079 21 become become VBN 40404 4079 22 more more RBR 40404 4079 23 low low JJ 40404 4079 24 . . . 40404 4080 1 The the DT 40404 4080 2 waters water NNS 40404 4080 3 now now RB 40404 4080 4 had have VBD 40404 4080 5 cleared clear VBN 40404 4080 6 . . . 40404 4081 1 Colonies colony NNS 40404 4081 2 of of IN 40404 4081 3 brachiopods brachiopod NNS 40404 4081 4 and and CC 40404 4081 5 other other JJ 40404 4081 6 lime lime NN 40404 4081 7 - - HYPH 40404 4081 8 secreting secrete VBG 40404 4081 9 animals animal NNS 40404 4081 10 occupied occupy VBD 40404 4081 11 the the DT 40404 4081 12 sea sea NN 40404 4081 13 bottom bottom NN 40404 4081 14 , , , 40404 4081 15 and and CC 40404 4081 16 their -PRON- PRP$ 40404 4081 17 debris debris NN 40404 4081 18 mantled mantle VBD 40404 4081 19 it -PRON- PRP 40404 4081 20 with with IN 40404 4081 21 sheets sheet NNS 40404 4081 22 of of IN 40404 4081 23 limy limy NNP 40404 4081 24 ooze ooze NN 40404 4081 25 . . . 40404 4082 1 The the DT 40404 4082 2 sandy sandy JJ 40404 4082 3 limestones limestone NNS 40404 4082 4 of of IN 40404 4082 5 the the DT 40404 4082 6 Calciferous calciferous JJ 40404 4082 7 record record NN 40404 4082 8 the the DT 40404 4082 9 transition transition NN 40404 4082 10 stage stage NN 40404 4082 11 from from IN 40404 4082 12 the the DT 40404 4082 13 Cambrian Cambrian NNP 40404 4082 14 when when WRB 40404 4082 15 some some DT 40404 4082 16 sand sand NN 40404 4082 17 was be VBD 40404 4082 18 still still RB 40404 4082 19 brought bring VBN 40404 4082 20 in in RP 40404 4082 21 from from IN 40404 4082 22 shore shore NN 40404 4082 23 . . . 40404 4083 1 The the DT 40404 4083 2 highly highly RB 40404 4083 3 fossiliferous fossiliferous JJ 40404 4083 4 limestones limestone NNS 40404 4083 5 of of IN 40404 4083 6 the the DT 40404 4083 7 Trenton Trenton NNP 40404 4083 8 tell tell NN 40404 4083 9 of of IN 40404 4083 10 clear clear JJ 40404 4083 11 water water NN 40404 4083 12 and and CC 40404 4083 13 abundant abundant JJ 40404 4083 14 life life NN 40404 4083 15 . . . 40404 4084 1 We -PRON- PRP 40404 4084 2 need need VBP 40404 4084 3 not not RB 40404 4084 4 regard regard VB 40404 4084 5 this this DT 40404 4084 6 epicontinental epicontinental JJ 40404 4084 7 sea sea NN 40404 4084 8 as as IN 40404 4084 9 deep deep JJ 40404 4084 10 . . . 40404 4085 1 No no DT 40404 4085 2 abysmal abysmal JJ 40404 4085 3 deposits deposit NNS 40404 4085 4 have have VBP 40404 4085 5 been be VBN 40404 4085 6 found find VBN 40404 4085 7 , , , 40404 4085 8 and and CC 40404 4085 9 the the DT 40404 4085 10 limestones limestone NNS 40404 4085 11 of of IN 40404 4085 12 the the DT 40404 4085 13 period period NN 40404 4085 14 are be VBP 40404 4085 15 those those DT 40404 4085 16 which which WDT 40404 4085 17 would would MD 40404 4085 18 be be VB 40404 4085 19 laid lay VBN 40404 4085 20 in in IN 40404 4085 21 clear clear JJ 40404 4085 22 , , , 40404 4085 23 warm warm JJ 40404 4085 24 water water NN 40404 4085 25 of of IN 40404 4085 26 moderate moderate JJ 40404 4085 27 depth depth NN 40404 4085 28 like like IN 40404 4085 29 that that DT 40404 4085 30 of of IN 40404 4085 31 modern modern JJ 40404 4085 32 coral coral JJ 40404 4085 33 seas sea NNS 40404 4085 34 . . . 40404 4086 1 [ [ -LRB- 40404 4086 2 Illustration illustration NN 40404 4086 3 : : : 40404 4086 4 Fig Fig NNP 40404 4086 5 . . . 40404 4087 1 276 276 CD 40404 4087 2 . . . 40404 4088 1 Hypothetical Hypothetical NNP 40404 4088 2 Map Map NNP 40404 4088 3 of of IN 40404 4088 4 the the DT 40404 4088 5 Eastern Eastern NNP 40404 4088 6 United United NNP 40404 4088 7 States States NNP 40404 4088 8 in in IN 40404 4088 9 Ordovician ordovician JJ 40404 4088 10 Time Time NNP 40404 4088 11 Shaded shade VBN 40404 4088 12 areas area NNS 40404 4088 13 , , , 40404 4088 14 probable probable JJ 40404 4088 15 sea sea NN 40404 4088 16 ; ; : 40404 4088 17 broken break VBN 40404 4088 18 lines line NNS 40404 4088 19 , , , 40404 4088 20 approximate approximate JJ 40404 4088 21 shore shore NN 40404 4088 22 lines line NNS 40404 4088 23 ] ] -RRB- 40404 4088 24 The the DT 40404 4088 25 shales shale NNS 40404 4088 26 of of IN 40404 4088 27 the the DT 40404 4088 28 Utica Utica NNP 40404 4088 29 and and CC 40404 4088 30 Hudson Hudson NNP 40404 4088 31 show show VBP 40404 4088 32 that that IN 40404 4088 33 the the DT 40404 4088 34 waters water NNS 40404 4088 35 of of IN 40404 4088 36 the the DT 40404 4088 37 sea sea NN 40404 4088 38 now now RB 40404 4088 39 became become VBD 40404 4088 40 clouded clouded JJ 40404 4088 41 with with IN 40404 4088 42 mud mud NN 40404 4088 43 washed wash VBD 40404 4088 44 in in RP 40404 4088 45 from from IN 40404 4088 46 land land NN 40404 4088 47 . . . 40404 4089 1 Either either CC 40404 4089 2 the the DT 40404 4089 3 land land NN 40404 4089 4 was be VBD 40404 4089 5 gradually gradually RB 40404 4089 6 uplifted uplifted JJ 40404 4089 7 , , , 40404 4089 8 or or CC 40404 4089 9 perhaps perhaps RB 40404 4089 10 there there EX 40404 4089 11 had have VBD 40404 4089 12 arrived arrive VBN 40404 4089 13 one one CD 40404 4089 14 of of IN 40404 4089 15 those those DT 40404 4089 16 periodic periodic JJ 40404 4089 17 crises crisis NNS 40404 4089 18 which which WDT 40404 4089 19 , , , 40404 4089 20 as as IN 40404 4089 21 we -PRON- PRP 40404 4089 22 may may MD 40404 4089 23 imagine imagine VB 40404 4089 24 , , , 40404 4089 25 have have VBP 40404 4089 26 taken take VBN 40404 4089 27 place place NN 40404 4089 28 whenever whenever WRB 40404 4089 29 the the DT 40404 4089 30 crust crust NN 40404 4089 31 of of IN 40404 4089 32 the the DT 40404 4089 33 shrinking shrink VBG 40404 4089 34 earth earth NN 40404 4089 35 has have VBZ 40404 4089 36 slowly slowly RB 40404 4089 37 given give VBN 40404 4089 38 way way NN 40404 4089 39 over over IN 40404 4089 40 its -PRON- PRP$ 40404 4089 41 great great JJ 40404 4089 42 depressions depression NNS 40404 4089 43 , , , 40404 4089 44 and and CC 40404 4089 45 the the DT 40404 4089 46 ocean ocean NN 40404 4089 47 has have VBZ 40404 4089 48 withdrawn withdraw VBN 40404 4089 49 its -PRON- PRP$ 40404 4089 50 waters water NNS 40404 4089 51 into into IN 40404 4089 52 deepening deepen VBG 40404 4089 53 abysses abyss NNS 40404 4089 54 . . . 40404 4090 1 The the DT 40404 4090 2 land land NN 40404 4090 3 was be VBD 40404 4090 4 thus thus RB 40404 4090 5 left leave VBN 40404 4090 6 relatively relatively RB 40404 4090 7 higher high JJR 40404 4090 8 and and CC 40404 4090 9 bordered border VBN 40404 4090 10 with with IN 40404 4090 11 new new JJ 40404 4090 12 coastal coastal JJ 40404 4090 13 plains plain NNS 40404 4090 14 . . . 40404 4091 1 The the DT 40404 4091 2 epicontinental epicontinental JJ 40404 4091 3 sea sea NN 40404 4091 4 was be VBD 40404 4091 5 shoaled shoal VBN 40404 4091 6 and and CC 40404 4091 7 narrowed narrow VBN 40404 4091 8 , , , 40404 4091 9 and and CC 40404 4091 10 muds mud NNS 40404 4091 11 were be VBD 40404 4091 12 washed wash VBN 40404 4091 13 in in RP 40404 4091 14 from from IN 40404 4091 15 the the DT 40404 4091 16 adjacent adjacent JJ 40404 4091 17 lands land NNS 40404 4091 18 . . . 40404 4092 1 = = NFP 40404 4092 2 The the DT 40404 4092 3 Taconic Taconic NNP 40404 4092 4 deformation.= deformation.= NN 40404 4092 5 The the DT 40404 4092 6 Ordovician Ordovician NNP 40404 4092 7 was be VBD 40404 4092 8 closed close VBN 40404 4092 9 by by IN 40404 4092 10 a a DT 40404 4092 11 deformation deformation NN 40404 4092 12 whose whose WP$ 40404 4092 13 extent extent NN 40404 4092 14 and and CC 40404 4092 15 severity severity NN 40404 4092 16 are be VBP 40404 4092 17 not not RB 40404 4092 18 yet yet RB 40404 4092 19 known know VBN 40404 4092 20 . . . 40404 4093 1 From from IN 40404 4093 2 the the DT 40404 4093 3 St. St. NNP 40404 4093 4 Lawrence Lawrence NNP 40404 4093 5 River River NNP 40404 4093 6 to to IN 40404 4093 7 New New NNP 40404 4093 8 York York NNP 40404 4093 9 Bay Bay NNP 40404 4093 10 , , , 40404 4093 11 along along IN 40404 4093 12 the the DT 40404 4093 13 northwestern northwestern JJ 40404 4093 14 and and CC 40404 4093 15 western western JJ 40404 4093 16 border border NN 40404 4093 17 of of IN 40404 4093 18 New New NNP 40404 4093 19 England England NNP 40404 4093 20 , , , 40404 4093 21 lies lie VBZ 40404 4093 22 a a DT 40404 4093 23 belt belt NN 40404 4093 24 of of IN 40404 4093 25 Cambrian cambrian JJ 40404 4093 26 - - HYPH 40404 4093 27 Ordovician ordovician JJ 40404 4093 28 rocks rock NNS 40404 4093 29 more more JJR 40404 4093 30 than than IN 40404 4093 31 a a DT 40404 4093 32 mile mile NN 40404 4093 33 in in IN 40404 4093 34 total total JJ 40404 4093 35 thickness thickness NN 40404 4093 36 , , , 40404 4093 37 which which WDT 40404 4093 38 accumulated accumulate VBD 40404 4093 39 during during IN 40404 4093 40 the the DT 40404 4093 41 long long JJ 40404 4093 42 ages age NNS 40404 4093 43 of of IN 40404 4093 44 those those DT 40404 4093 45 periods period NNS 40404 4093 46 in in IN 40404 4093 47 a a DT 40404 4093 48 gradually gradually RB 40404 4093 49 subsiding subsiding JJ 40404 4093 50 trough trough NN 40404 4093 51 between between IN 40404 4093 52 the the DT 40404 4093 53 Adirondacks Adirondacks NNPS 40404 4093 54 and and CC 40404 4093 55 a a DT 40404 4093 56 pre pre JJ 40404 4093 57 - - JJ 40404 4093 58 Cambrian cambrian JJ 40404 4093 59 range range NN 40404 4093 60 lying lie VBG 40404 4093 61 west west NN 40404 4093 62 of of IN 40404 4093 63 the the DT 40404 4093 64 Connecticut Connecticut NNP 40404 4093 65 River River NNP 40404 4093 66 . . . 40404 4094 1 But but CC 40404 4094 2 since since IN 40404 4094 3 their -PRON- PRP$ 40404 4094 4 deposition deposition NN 40404 4094 5 these these DT 40404 4094 6 ancient ancient JJ 40404 4094 7 sediments sediment NNS 40404 4094 8 have have VBP 40404 4094 9 been be VBN 40404 4094 10 crumpled crumple VBN 40404 4094 11 and and CC 40404 4094 12 crushed crush VBN 40404 4094 13 , , , 40404 4094 14 broken break VBN 40404 4094 15 with with IN 40404 4094 16 great great JJ 40404 4094 17 faults fault NNS 40404 4094 18 , , , 40404 4094 19 and and CC 40404 4094 20 extensively extensively RB 40404 4094 21 metamorphosed metamorphose VBN 40404 4094 22 . . . 40404 4095 1 The the DT 40404 4095 2 limestones limestone NNS 40404 4095 3 have have VBP 40404 4095 4 recrystallized recrystallize VBN 40404 4095 5 into into IN 40404 4095 6 marbles marble NNS 40404 4095 7 , , , 40404 4095 8 among among IN 40404 4095 9 them -PRON- PRP 40404 4095 10 the the DT 40404 4095 11 famous famous JJ 40404 4095 12 marbles marble NNS 40404 4095 13 of of IN 40404 4095 14 Vermont Vermont NNP 40404 4095 15 ; ; : 40404 4095 16 the the DT 40404 4095 17 Cambrian cambrian JJ 40404 4095 18 sandstones sandstone NNS 40404 4095 19 have have VBP 40404 4095 20 become become VBN 40404 4095 21 quartzites quartzite NNS 40404 4095 22 , , , 40404 4095 23 and and CC 40404 4095 24 the the DT 40404 4095 25 Hudson Hudson NNP 40404 4095 26 shale shale NN 40404 4095 27 has have VBZ 40404 4095 28 been be VBN 40404 4095 29 changed change VBN 40404 4095 30 to to IN 40404 4095 31 a a DT 40404 4095 32 schist schist NN 40404 4095 33 exposed expose VBN 40404 4095 34 on on IN 40404 4095 35 Manhattan Manhattan NNP 40404 4095 36 Island Island NNP 40404 4095 37 and and CC 40404 4095 38 northward northward NNP 40404 4095 39 . . . 40404 4096 1 In in IN 40404 4096 2 part part NN 40404 4096 3 these these DT 40404 4096 4 changes change NNS 40404 4096 5 occurred occur VBD 40404 4096 6 at at IN 40404 4096 7 the the DT 40404 4096 8 close close NN 40404 4096 9 of of IN 40404 4096 10 the the DT 40404 4096 11 Ordovician Ordovician NNP 40404 4096 12 , , , 40404 4096 13 for for IN 40404 4096 14 in in IN 40404 4096 15 several several JJ 40404 4096 16 places place NNS 40404 4096 17 beds bed NNS 40404 4096 18 of of IN 40404 4096 19 Silurian silurian JJ 40404 4096 20 age age NN 40404 4096 21 rest rest NN 40404 4096 22 unconformably unconformably RB 40404 4096 23 on on IN 40404 4096 24 the the DT 40404 4096 25 upturned upturned JJ 40404 4096 26 Ordovician ordovician JJ 40404 4096 27 strata strata NN 40404 4096 28 ; ; : 40404 4096 29 but but CC 40404 4096 30 recent recent JJ 40404 4096 31 investigations investigation NNS 40404 4096 32 have have VBP 40404 4096 33 made make VBN 40404 4096 34 it -PRON- PRP 40404 4096 35 probable probable JJ 40404 4096 36 that that IN 40404 4096 37 the the DT 40404 4096 38 crustal crustal JJ 40404 4096 39 movements movement NNS 40404 4096 40 recurred recur VBN 40404 4096 41 at at IN 40404 4096 42 later late JJR 40404 4096 43 times time NNS 40404 4096 44 , , , 40404 4096 45 and and CC 40404 4096 46 it -PRON- PRP 40404 4096 47 was be VBD 40404 4096 48 perhaps perhaps RB 40404 4096 49 in in IN 40404 4096 50 the the DT 40404 4096 51 Devonian Devonian NNP 40404 4096 52 and and CC 40404 4096 53 at at IN 40404 4096 54 the the DT 40404 4096 55 close close NN 40404 4096 56 of of IN 40404 4096 57 the the DT 40404 4096 58 Carboniferous Carboniferous NNP 40404 4096 59 that that IN 40404 4096 60 the the DT 40404 4096 61 greater great JJR 40404 4096 62 part part NN 40404 4096 63 of of IN 40404 4096 64 the the DT 40404 4096 65 deformation deformation NN 40404 4096 66 and and CC 40404 4096 67 metamorphism metamorphism NN 40404 4096 68 was be VBD 40404 4096 69 accomplished accomplish VBN 40404 4096 70 . . . 40404 4097 1 As as IN 40404 4097 2 a a DT 40404 4097 3 result result NN 40404 4097 4 of of IN 40404 4097 5 these these DT 40404 4097 6 movements,--perhaps movements,--perhap NNS 40404 4097 7 several several JJ 40404 4097 8 times time NNS 40404 4097 9 repeated,--a repeated,--a NNP 40404 4097 10 great great JJ 40404 4097 11 mountain mountain NN 40404 4097 12 range range NN 40404 4097 13 was be VBD 40404 4097 14 upridged upridge VBN 40404 4097 15 , , , 40404 4097 16 which which WDT 40404 4097 17 has have VBZ 40404 4097 18 been be VBN 40404 4097 19 long long JJ 40404 4097 20 since since IN 40404 4097 21 leveled level VBN 40404 4097 22 by by IN 40404 4097 23 erosion erosion NN 40404 4097 24 , , , 40404 4097 25 but but CC 40404 4097 26 whose whose WP$ 40404 4097 27 roots root NNS 40404 4097 28 are be VBP 40404 4097 29 now now RB 40404 4097 30 visible visible JJ 40404 4097 31 in in IN 40404 4097 32 the the DT 40404 4097 33 Taconic Taconic NNP 40404 4097 34 Mountains Mountains NNPS 40404 4097 35 of of IN 40404 4097 36 western western JJ 40404 4097 37 New New NNP 40404 4097 38 England England NNP 40404 4097 39 . . . 40404 4098 1 = = NFP 40404 4098 2 The the DT 40404 4098 3 Cincinnati Cincinnati NNP 40404 4098 4 anticline.= anticline.= NNP 40404 4098 5 Over over IN 40404 4098 6 an an DT 40404 4098 7 oval oval JJ 40404 4098 8 area area NN 40404 4098 9 in in IN 40404 4098 10 Ohio Ohio NNP 40404 4098 11 , , , 40404 4098 12 Indiana Indiana NNP 40404 4098 13 , , , 40404 4098 14 and and CC 40404 4098 15 Kentucky Kentucky NNP 40404 4098 16 , , , 40404 4098 17 whose whose WP$ 40404 4098 18 longer long RBR 40404 4098 19 axis axis RB 40404 4098 20 extends extend VBZ 40404 4098 21 from from IN 40404 4098 22 north north NN 40404 4098 23 to to IN 40404 4098 24 south south NN 40404 4098 25 through through IN 40404 4098 26 Cincinnati Cincinnati NNP 40404 4098 27 , , , 40404 4098 28 the the DT 40404 4098 29 Ordovician ordovician JJ 40404 4098 30 strata strata NN 40404 4098 31 rise rise NN 40404 4098 32 in in IN 40404 4098 33 a a DT 40404 4098 34 very very RB 40404 4098 35 low low JJ 40404 4098 36 , , , 40404 4098 37 broad broad JJ 40404 4098 38 swell swell NN 40404 4098 39 , , , 40404 4098 40 called call VBD 40404 4098 41 the the DT 40404 4098 42 Cincinnati Cincinnati NNP 40404 4098 43 anticline anticline NN 40404 4098 44 . . . 40404 4099 1 The the DT 40404 4099 2 Silurian silurian JJ 40404 4099 3 and and CC 40404 4099 4 Devonian Devonian NNP 40404 4099 5 strata strata NN 40404 4099 6 thin thin RB 40404 4099 7 out out RP 40404 4099 8 as as IN 40404 4099 9 they -PRON- PRP 40404 4099 10 approach approach VBP 40404 4099 11 this this DT 40404 4099 12 area area NN 40404 4099 13 and and CC 40404 4099 14 seem seem VBP 40404 4099 15 never never RB 40404 4099 16 to to TO 40404 4099 17 have have VB 40404 4099 18 deposited deposit VBN 40404 4099 19 upon upon IN 40404 4099 20 it -PRON- PRP 40404 4099 21 . . . 40404 4100 1 We -PRON- PRP 40404 4100 2 may may MD 40404 4100 3 regard regard VB 40404 4100 4 it -PRON- PRP 40404 4100 5 , , , 40404 4100 6 therefore therefore RB 40404 4100 7 , , , 40404 4100 8 as as IN 40404 4100 9 an an DT 40404 4100 10 island island NN 40404 4100 11 upwarped upwarpe VBD 40404 4100 12 from from IN 40404 4100 13 the the DT 40404 4100 14 sea sea NN 40404 4100 15 at at IN 40404 4100 16 the the DT 40404 4100 17 close close NN 40404 4100 18 of of IN 40404 4100 19 the the DT 40404 4100 20 Ordovician ordovician JJ 40404 4100 21 or or CC 40404 4100 22 shortly shortly RB 40404 4100 23 after after IN 40404 4100 24 . . . 40404 4101 1 = = NFP 40404 4101 2 Petroleum Petroleum NNP 40404 4101 3 and and CC 40404 4101 4 natural natural JJ 40404 4101 5 gas.= gas.= `` 40404 4101 6 These these DT 40404 4101 7 valuable valuable JJ 40404 4101 8 illuminants illuminant NNS 40404 4101 9 and and CC 40404 4101 10 fuels fuel NNS 40404 4101 11 are be VBP 40404 4101 12 considered consider VBN 40404 4101 13 here here RB 40404 4101 14 because because IN 40404 4101 15 , , , 40404 4101 16 although although IN 40404 4101 17 they -PRON- PRP 40404 4101 18 are be VBP 40404 4101 19 found find VBN 40404 4101 20 in in IN 40404 4101 21 traces trace NNS 40404 4101 22 in in IN 40404 4101 23 older old JJR 40404 4101 24 strata strata NN 40404 4101 25 , , , 40404 4101 26 it -PRON- PRP 40404 4101 27 is be VBZ 40404 4101 28 in in IN 40404 4101 29 the the DT 40404 4101 30 Ordovician Ordovician NNP 40404 4101 31 that that WDT 40404 4101 32 they -PRON- PRP 40404 4101 33 occur occur VBP 40404 4101 34 for for IN 40404 4101 35 the the DT 40404 4101 36 first first JJ 40404 4101 37 time time NN 40404 4101 38 in in IN 40404 4101 39 large large JJ 40404 4101 40 quantities quantity NNS 40404 4101 41 . . . 40404 4102 1 They -PRON- PRP 40404 4102 2 range range VBP 40404 4102 3 throughout throughout IN 40404 4102 4 later later JJ 40404 4102 5 formations formation NNS 40404 4102 6 down down RP 40404 4102 7 to to IN 40404 4102 8 the the DT 40404 4102 9 most most RBS 40404 4102 10 recent recent JJ 40404 4102 11 . . . 40404 4103 1 [ [ -LRB- 40404 4103 2 Illustration illustration NN 40404 4103 3 : : : 40404 4103 4 Fig Fig NNP 40404 4103 5 . . . 40404 4104 1 277 277 CD 40404 4104 2 . . . 40404 4105 1 Diagram Diagram NNP 40404 4105 2 Illustrating Illustrating NNP 40404 4105 3 the the DT 40404 4105 4 Conditions Conditions NNPS 40404 4105 5 of of IN 40404 4105 6 Accumulation Accumulation NNP 40404 4105 7 of of IN 40404 4105 8 Oil Oil NNP 40404 4105 9 and and CC 40404 4105 10 Gas Gas NNP 40404 4105 11 _ _ NNP 40404 4105 12 a a DT 40404 4105 13 _ _ NNP 40404 4105 14 , , , 40404 4105 15 source source NN 40404 4105 16 ; ; : 40404 4105 17 _ _ NNP 40404 4105 18 b b NNP 40404 4105 19 _ _ NNP 40404 4105 20 , , , 40404 4105 21 reservoir reservoir NN 40404 4105 22 ; ; : 40404 4105 23 _ _ NNP 40404 4105 24 c c NNP 40404 4105 25 _ _ NNP 40404 4105 26 , , , 40404 4105 27 cover cover NN 40404 4105 28 . . . 40404 4106 1 What what WP 40404 4106 2 would would MD 40404 4106 3 be be VB 40404 4106 4 the the DT 40404 4106 5 result result NN 40404 4106 6 of of IN 40404 4106 7 boring bore VBG 40404 4106 8 to to IN 40404 4106 9 the the DT 40404 4106 10 reservoir reservoir NN 40404 4106 11 rock rock NN 40404 4106 12 at at IN 40404 4106 13 _ _ NNP 40404 4106 14 d d NNP 40404 4106 15 _ _ NNP 40404 4106 16 ? ? . 40404 4107 1 at at IN 40404 4107 2 _ _ NNP 40404 4107 3 d d NNP 40404 4107 4 ´ ´ CD 40404 4107 5 _ _ NNP 40404 4107 6 ? ? . 40404 4108 1 at at IN 40404 4108 2 _ _ NNP 40404 4108 3 d d NNP 40404 4108 4 ´ ´ CD 40404 4108 5 ´ ´ CD 40404 4108 6 _ _ NNP 40404 4108 7 ? ? . 40404 4108 8 ] ] -RRB- 40404 4109 1 The the DT 40404 4109 2 oil oil NN 40404 4109 3 horizons horizon NNS 40404 4109 4 of of IN 40404 4109 5 California California NNP 40404 4109 6 and and CC 40404 4109 7 Texas Texas NNP 40404 4109 8 are be VBP 40404 4109 9 Tertiary tertiary JJ 40404 4109 10 ; ; : 40404 4109 11 those those DT 40404 4109 12 of of IN 40404 4109 13 Colorado Colorado NNP 40404 4109 14 , , , 40404 4109 15 Cretaceous Cretaceous NNP 40404 4109 16 ; ; : 40404 4109 17 those those DT 40404 4109 18 of of IN 40404 4109 19 West West NNP 40404 4109 20 Virginia Virginia NNP 40404 4109 21 , , , 40404 4109 22 Carboniferous Carboniferous NNP 40404 4109 23 ; ; : 40404 4109 24 those those DT 40404 4109 25 of of IN 40404 4109 26 Pennsylvania Pennsylvania NNP 40404 4109 27 , , , 40404 4109 28 Kentucky Kentucky NNP 40404 4109 29 , , , 40404 4109 30 and and CC 40404 4109 31 Canada Canada NNP 40404 4109 32 , , , 40404 4109 33 Devonian Devonian NNP 40404 4109 34 ; ; : 40404 4109 35 and and CC 40404 4109 36 the the DT 40404 4109 37 large large JJ 40404 4109 38 field field NN 40404 4109 39 of of IN 40404 4109 40 Ohio Ohio NNP 40404 4109 41 and and CC 40404 4109 42 Indiana Indiana NNP 40404 4109 43 belongs belong VBZ 40404 4109 44 to to IN 40404 4109 45 the the DT 40404 4109 46 Ordovician ordovician JJ 40404 4109 47 and and CC 40404 4109 48 higher high JJR 40404 4109 49 systems system NNS 40404 4109 50 . . . 40404 4110 1 Petroleum petroleum NN 40404 4110 2 and and CC 40404 4110 3 natural natural JJ 40404 4110 4 gas gas NN 40404 4110 5 , , , 40404 4110 6 wherever wherever WRB 40404 4110 7 found find VBN 40404 4110 8 , , , 40404 4110 9 have have VBP 40404 4110 10 probably probably RB 40404 4110 11 originated originate VBN 40404 4110 12 from from IN 40404 4110 13 the the DT 40404 4110 14 decay decay NN 40404 4110 15 of of IN 40404 4110 16 organic organic JJ 40404 4110 17 matter matter NN 40404 4110 18 when when WRB 40404 4110 19 buried bury VBN 40404 4110 20 in in IN 40404 4110 21 sedimentary sedimentary JJ 40404 4110 22 deposits deposit NNS 40404 4110 23 , , , 40404 4110 24 just just RB 40404 4110 25 as as IN 40404 4110 26 at at IN 40404 4110 27 present present NN 40404 4110 28 in in IN 40404 4110 29 swampy swampy JJ 40404 4110 30 places place NNS 40404 4110 31 the the DT 40404 4110 32 hydrogen hydrogen NN 40404 4110 33 and and CC 40404 4110 34 carbon carbon NN 40404 4110 35 of of IN 40404 4110 36 decaying decay VBG 40404 4110 37 vegetation vegetation NN 40404 4110 38 combine combine VBP 40404 4110 39 to to TO 40404 4110 40 form form VB 40404 4110 41 marsh marsh NNP 40404 4110 42 gas gas NN 40404 4110 43 . . . 40404 4111 1 The the DT 40404 4111 2 light light NN 40404 4111 3 and and CC 40404 4111 4 heat heat NN 40404 4111 5 of of IN 40404 4111 6 these these DT 40404 4111 7 hydrocarbons hydrocarbon NNS 40404 4111 8 we -PRON- PRP 40404 4111 9 may may MD 40404 4111 10 think think VB 40404 4111 11 of of IN 40404 4111 12 , , , 40404 4111 13 therefore therefore RB 40404 4111 14 , , , 40404 4111 15 as as IN 40404 4111 16 a a DT 40404 4111 17 gift gift NN 40404 4111 18 to to IN 40404 4111 19 the the DT 40404 4111 20 civilized civilized JJ 40404 4111 21 life life NN 40404 4111 22 of of IN 40404 4111 23 our -PRON- PRP$ 40404 4111 24 race race NN 40404 4111 25 from from IN 40404 4111 26 the the DT 40404 4111 27 humble humble JJ 40404 4111 28 organisms organism NNS 40404 4111 29 , , , 40404 4111 30 both both CC 40404 4111 31 animal animal NN 40404 4111 32 and and CC 40404 4111 33 vegetable vegetable NN 40404 4111 34 , , , 40404 4111 35 of of IN 40404 4111 36 the the DT 40404 4111 37 remote remote JJ 40404 4111 38 past past NN 40404 4111 39 , , , 40404 4111 40 whose whose WP$ 40404 4111 41 remains remain NNS 40404 4111 42 were be VBD 40404 4111 43 entombed entomb VBN 40404 4111 44 in in IN 40404 4111 45 the the DT 40404 4111 46 sediments sediment NNS 40404 4111 47 of of IN 40404 4111 48 the the DT 40404 4111 49 Ordovician ordovician JJ 40404 4111 50 and and CC 40404 4111 51 later later JJ 40404 4111 52 geological geological JJ 40404 4111 53 ages age NNS 40404 4111 54 . . . 40404 4112 1 Petroleum petroleum NN 40404 4112 2 is be VBZ 40404 4112 3 very very RB 40404 4112 4 widely widely RB 40404 4112 5 disseminated disseminate VBN 40404 4112 6 throughout throughout IN 40404 4112 7 the the DT 40404 4112 8 stratified stratified JJ 40404 4112 9 rocks rock NNS 40404 4112 10 . . . 40404 4113 1 Certain certain JJ 40404 4113 2 limestones limestone NNS 40404 4113 3 are be VBP 40404 4113 4 visibly visibly RB 40404 4113 5 greasy greasy JJ 40404 4113 6 with with IN 40404 4113 7 it -PRON- PRP 40404 4113 8 , , , 40404 4113 9 and and CC 40404 4113 10 others other NNS 40404 4113 11 give give VBP 40404 4113 12 off off RP 40404 4113 13 its -PRON- PRP$ 40404 4113 14 characteristic characteristic JJ 40404 4113 15 fetid fetid JJ 40404 4113 16 odor odor NN 40404 4113 17 when when WRB 40404 4113 18 struck strike VBD 40404 4113 19 with with IN 40404 4113 20 a a DT 40404 4113 21 hammer hammer NN 40404 4113 22 . . . 40404 4114 1 Many many JJ 40404 4114 2 shales shale NNS 40404 4114 3 are be VBP 40404 4114 4 bituminous bituminous JJ 40404 4114 5 , , , 40404 4114 6 and and CC 40404 4114 7 some some DT 40404 4114 8 are be VBP 40404 4114 9 so so RB 40404 4114 10 highly highly RB 40404 4114 11 charged charge VBN 40404 4114 12 that that IN 40404 4114 13 small small JJ 40404 4114 14 flakes flake NNS 40404 4114 15 may may MD 40404 4114 16 be be VB 40404 4114 17 lighted light VBN 40404 4114 18 like like IN 40404 4114 19 tapers taper NNS 40404 4114 20 , , , 40404 4114 21 and and CC 40404 4114 22 several several JJ 40404 4114 23 gallons gallon NNS 40404 4114 24 of of IN 40404 4114 25 oil oil NN 40404 4114 26 to to IN 40404 4114 27 the the DT 40404 4114 28 ton ton NN 40404 4114 29 may may MD 40404 4114 30 be be VB 40404 4114 31 obtained obtain VBN 40404 4114 32 by by IN 40404 4114 33 distillation distillation NN 40404 4114 34 . . . 40404 4115 1 But but CC 40404 4115 2 oil oil NN 40404 4115 3 and and CC 40404 4115 4 gas gas NN 40404 4115 5 are be VBP 40404 4115 6 found find VBN 40404 4115 7 in in IN 40404 4115 8 paying pay VBG 40404 4115 9 quantities quantity NNS 40404 4115 10 only only RB 40404 4115 11 when when WRB 40404 4115 12 certain certain JJ 40404 4115 13 conditions condition NNS 40404 4115 14 meet meet VBP 40404 4115 15 : : : 40404 4115 16 1 1 CD 40404 4115 17 . . . 40404 4116 1 A a DT 40404 4116 2 _ _ NNP 40404 4116 3 source source NN 40404 4116 4 _ _ NNP 40404 4116 5 below below RB 40404 4116 6 , , , 40404 4116 7 usually usually RB 40404 4116 8 a a DT 40404 4116 9 bituminous bituminous JJ 40404 4116 10 shale shale NN 40404 4116 11 , , , 40404 4116 12 from from IN 40404 4116 13 whose whose WP$ 40404 4116 14 organic organic JJ 40404 4116 15 matter matter NN 40404 4116 16 they -PRON- PRP 40404 4116 17 have have VBP 40404 4116 18 been be VBN 40404 4116 19 derived derive VBN 40404 4116 20 by by IN 40404 4116 21 slow slow JJ 40404 4116 22 change change NN 40404 4116 23 . . . 40404 4117 1 2 2 LS 40404 4117 2 . . . 40404 4118 1 A a DT 40404 4118 2 _ _ NNP 40404 4118 3 reservoir reservoir NN 40404 4118 4 _ _ NN 40404 4118 5 above above RB 40404 4118 6 , , , 40404 4118 7 in in IN 40404 4118 8 which which WDT 40404 4118 9 they -PRON- PRP 40404 4118 10 have have VBP 40404 4118 11 gathered gather VBN 40404 4118 12 . . . 40404 4119 1 This this DT 40404 4119 2 is be VBZ 40404 4119 3 either either CC 40404 4119 4 a a DT 40404 4119 5 porous porous JJ 40404 4119 6 sandstone sandstone NN 40404 4119 7 or or CC 40404 4119 8 a a DT 40404 4119 9 porous porous JJ 40404 4119 10 or or CC 40404 4119 11 creviced creviced JJ 40404 4119 12 limestone limestone NN 40404 4119 13 . . . 40404 4120 1 3 3 LS 40404 4120 2 . . . 40404 4121 1 Oil oil NN 40404 4121 2 and and CC 40404 4121 3 gas gas NN 40404 4121 4 are be VBP 40404 4121 5 lighter light JJR 40404 4121 6 than than IN 40404 4121 7 water water NN 40404 4121 8 , , , 40404 4121 9 and and CC 40404 4121 10 are be VBP 40404 4121 11 usually usually RB 40404 4121 12 under under IN 40404 4121 13 pressure pressure NN 40404 4121 14 owing owe VBG 40404 4121 15 to to IN 40404 4121 16 artesian artesian JJ 40404 4121 17 water water NN 40404 4121 18 . . . 40404 4122 1 Hence hence RB 40404 4122 2 , , , 40404 4122 3 in in IN 40404 4122 4 order order NN 40404 4122 5 to to TO 40404 4122 6 hold hold VB 40404 4122 7 them -PRON- PRP 40404 4122 8 from from IN 40404 4122 9 escaping escape VBG 40404 4122 10 to to IN 40404 4122 11 the the DT 40404 4122 12 surface surface NN 40404 4122 13 , , , 40404 4122 14 the the DT 40404 4122 15 reservoir reservoir NN 40404 4122 16 must must MD 40404 4122 17 have have VB 40404 4122 18 the the DT 40404 4122 19 shape shape NN 40404 4122 20 of of IN 40404 4122 21 an an DT 40404 4122 22 _ _ NNP 40404 4122 23 anticline anticline NN 40404 4122 24 _ _ NNP 40404 4122 25 , , , 40404 4122 26 _ _ NNP 40404 4122 27 dome dome NN 40404 4122 28 _ _ NNP 40404 4122 29 , , , 40404 4122 30 or or CC 40404 4122 31 _ _ NNP 40404 4122 32 lens lens NN 40404 4122 33 _ _ NNP 40404 4122 34 . . . 40404 4123 1 4 4 LS 40404 4123 2 . . . 40404 4124 1 It -PRON- PRP 40404 4124 2 must must MD 40404 4124 3 also also RB 40404 4124 4 have have VB 40404 4124 5 an an DT 40404 4124 6 _ _ NNP 40404 4124 7 impervious impervious JJ 40404 4124 8 cover cover NN 40404 4124 9 _ _ NNP 40404 4124 10 , , , 40404 4124 11 usually usually RB 40404 4124 12 a a DT 40404 4124 13 shale shale NN 40404 4124 14 . . . 40404 4125 1 In in IN 40404 4125 2 these these DT 40404 4125 3 reservoirs reservoir NNS 40404 4125 4 gas gas NN 40404 4125 5 is be VBZ 40404 4125 6 under under IN 40404 4125 7 a a DT 40404 4125 8 pressure pressure NN 40404 4125 9 which which WDT 40404 4125 10 is be VBZ 40404 4125 11 often often RB 40404 4125 12 enormous enormous JJ 40404 4125 13 , , , 40404 4125 14 reaching reach VBG 40404 4125 15 in in IN 40404 4125 16 extreme extreme JJ 40404 4125 17 cases case NNS 40404 4125 18 as as RB 40404 4125 19 high high JJ 40404 4125 20 as as IN 40404 4125 21 a a DT 40404 4125 22 thousand thousand CD 40404 4125 23 five five CD 40404 4125 24 hundred hundred CD 40404 4125 25 pounds pound NNS 40404 4125 26 to to IN 40404 4125 27 the the DT 40404 4125 28 square square JJ 40404 4125 29 inch inch NN 40404 4125 30 . . . 40404 4126 1 When when WRB 40404 4126 2 tapped tap VBN 40404 4126 3 it -PRON- PRP 40404 4126 4 rushes rush VBZ 40404 4126 5 out out RP 40404 4126 6 with with IN 40404 4126 7 a a DT 40404 4126 8 deafening deafen VBG 40404 4126 9 roar roar NN 40404 4126 10 , , , 40404 4126 11 sometimes sometimes RB 40404 4126 12 flinging fling VBG 40404 4126 13 the the DT 40404 4126 14 heavy heavy JJ 40404 4126 15 drill drill NN 40404 4126 16 high high RB 40404 4126 17 in in IN 40404 4126 18 air air NN 40404 4126 19 . . . 40404 4127 1 In in IN 40404 4127 2 accounting account VBG 40404 4127 3 for for IN 40404 4127 4 this this DT 40404 4127 5 pressure pressure NN 40404 4127 6 we -PRON- PRP 40404 4127 7 must must MD 40404 4127 8 remember remember VB 40404 4127 9 that that IN 40404 4127 10 the the DT 40404 4127 11 gas gas NN 40404 4127 12 has have VBZ 40404 4127 13 been be VBN 40404 4127 14 compressed compress VBN 40404 4127 15 within within IN 40404 4127 16 the the DT 40404 4127 17 pores pore NNS 40404 4127 18 of of IN 40404 4127 19 the the DT 40404 4127 20 reservoir reservoir NN 40404 4127 21 rock rock NN 40404 4127 22 by by IN 40404 4127 23 artesian artesian JJ 40404 4127 24 water water NN 40404 4127 25 , , , 40404 4127 26 and and CC 40404 4127 27 in in IN 40404 4127 28 some some DT 40404 4127 29 cases case NNS 40404 4127 30 also also RB 40404 4127 31 by by IN 40404 4127 32 its -PRON- PRP$ 40404 4127 33 own own JJ 40404 4127 34 expansive expansive JJ 40404 4127 35 force force NN 40404 4127 36 . . . 40404 4128 1 It -PRON- PRP 40404 4128 2 is be VBZ 40404 4128 3 not not RB 40404 4128 4 uncommon uncommon JJ 40404 4128 5 for for IN 40404 4128 6 artesian artesian JJ 40404 4128 7 water water NN 40404 4128 8 to to TO 40404 4128 9 rise rise VB 40404 4128 10 in in IN 40404 4128 11 wells well NNS 40404 4128 12 after after IN 40404 4128 13 the the DT 40404 4128 14 exhaustion exhaustion NN 40404 4128 15 of of IN 40404 4128 16 gas gas NN 40404 4128 17 and and CC 40404 4128 18 oil oil NN 40404 4128 19 . . . 40404 4129 1 _ _ NNP 40404 4129 2 Life Life NNP 40404 4129 3 of of IN 40404 4129 4 the the DT 40404 4129 5 Ordovician ordovician JJ 40404 4129 6 _ _ NNP 40404 4129 7 During during IN 40404 4129 8 the the DT 40404 4129 9 ages age NNS 40404 4129 10 of of IN 40404 4129 11 the the DT 40404 4129 12 Ordovician ordovician JJ 40404 4129 13 , , , 40404 4129 14 life life NN 40404 4129 15 made make VBD 40404 4129 16 great great JJ 40404 4129 17 advances advance NNS 40404 4129 18 . . . 40404 4130 1 Types type NNS 40404 4130 2 already already RB 40404 4130 3 present present VBP 40404 4130 4 branched branch VBN 40404 4130 5 widely widely RB 40404 4130 6 into into IN 40404 4130 7 new new JJ 40404 4130 8 genera genera NN 40404 4130 9 and and CC 40404 4130 10 species specie NNS 40404 4130 11 , , , 40404 4130 12 and and CC 40404 4130 13 new new JJ 40404 4130 14 and and CC 40404 4130 15 higher high JJR 40404 4130 16 types type NNS 40404 4130 17 appeared appear VBD 40404 4130 18 . . . 40404 4131 1 Sponges sponge NNS 40404 4131 2 continued continue VBD 40404 4131 3 from from IN 40404 4131 4 the the DT 40404 4131 5 Cambrian Cambrian NNP 40404 4131 6 . . . 40404 4132 1 Graptolites graptolite NNS 40404 4132 2 now now RB 40404 4132 3 reached reach VBD 40404 4132 4 their -PRON- PRP$ 40404 4132 5 climax climax NN 40404 4132 6 . . . 40404 4133 1 [ [ -LRB- 40404 4133 2 Illustration illustration NN 40404 4133 3 : : : 40404 4133 4 Fig Fig NNP 40404 4133 5 . . . 40404 4134 1 278 278 CD 40404 4134 2 . . . 40404 4135 1 Stromatopora Stromatopora NNP 40404 4135 2 ] ] -RRB- 40404 4135 3 = = SYM 40404 4135 4 Stromatopora=--colonies Stromatopora=--colonies NNP 40404 4135 5 of of IN 40404 4135 6 minute minute NN 40404 4135 7 hydrozoans hydrozoan NNS 40404 4135 8 allied ally VBN 40404 4135 9 to to IN 40404 4135 10 corals coral NNS 40404 4135 11 -- -- : 40404 4135 12 grew grow VBD 40404 4135 13 in in IN 40404 4135 14 places place NNS 40404 4135 15 on on IN 40404 4135 16 the the DT 40404 4135 17 sea sea NN 40404 4135 18 floor floor NN 40404 4135 19 , , , 40404 4135 20 secreting secrete VBG 40404 4135 21 stony stony NN 40404 4135 22 masses masse NNS 40404 4135 23 composed compose VBN 40404 4135 24 of of IN 40404 4135 25 thin thin JJ 40404 4135 26 , , , 40404 4135 27 close close JJ 40404 4135 28 , , , 40404 4135 29 concentric concentric JJ 40404 4135 30 layers layer NNS 40404 4135 31 , , , 40404 4135 32 connected connect VBN 40404 4135 33 by by IN 40404 4135 34 vertical vertical JJ 40404 4135 35 rods rod NNS 40404 4135 36 . . . 40404 4136 1 The the DT 40404 4136 2 Stromatopora Stromatopora NNP 40404 4136 3 are be VBP 40404 4136 4 among among IN 40404 4136 5 the the DT 40404 4136 6 chief chief JJ 40404 4136 7 limestone limestone NN 40404 4136 8 builders builder NNS 40404 4136 9 of of IN 40404 4136 10 the the DT 40404 4136 11 Silurian silurian JJ 40404 4136 12 and and CC 40404 4136 13 Devonian Devonian NNP 40404 4136 14 periods period NNS 40404 4136 15 . . . 40404 4137 1 = = SYM 40404 4137 2 Corals= Corals= NNP 40404 4137 3 developed develop VBN 40404 4137 4 along along IN 40404 4137 5 several several JJ 40404 4137 6 distinct distinct JJ 40404 4137 7 lines line NNS 40404 4137 8 , , , 40404 4137 9 like like IN 40404 4137 10 modern modern JJ 40404 4137 11 corals coral NNS 40404 4137 12 they -PRON- PRP 40404 4137 13 secreted secrete VBD 40404 4137 14 a a DT 40404 4137 15 calcareous calcareous JJ 40404 4137 16 framework framework NN 40404 4137 17 , , , 40404 4137 18 in in IN 40404 4137 19 whose whose WP$ 40404 4137 20 outer outer JJ 40404 4137 21 portions portion NNS 40404 4137 22 the the DT 40404 4137 23 polyps polyp NNS 40404 4137 24 lived live VBD 40404 4137 25 . . . 40404 4138 1 In in IN 40404 4138 2 the the DT 40404 4138 3 Ordovician Ordovician NNP 40404 4138 4 , , , 40404 4138 5 corals coral NNS 40404 4138 6 were be VBD 40404 4138 7 represented represent VBN 40404 4138 8 chiefly chiefly RB 40404 4138 9 by by IN 40404 4138 10 the the DT 40404 4138 11 family family NN 40404 4138 12 of of IN 40404 4138 13 the the DT 40404 4138 14 _ _ NNP 40404 4138 15 Chætetes Chætetes NNPS 40404 4138 16 _ _ NNP 40404 4138 17 , , , 40404 4138 18 all all DT 40404 4138 19 species specie NNS 40404 4138 20 of of IN 40404 4138 21 which which WDT 40404 4138 22 are be VBP 40404 4138 23 long long JJ 40404 4138 24 since since IN 40404 4138 25 extinct extinct JJ 40404 4138 26 . . . 40404 4139 1 The the DT 40404 4139 2 description description NN 40404 4139 3 of of IN 40404 4139 4 other other JJ 40404 4139 5 types type NNS 40404 4139 6 of of IN 40404 4139 7 corals coral NNS 40404 4139 8 will will MD 40404 4139 9 be be VB 40404 4139 10 given give VBN 40404 4139 11 under under IN 40404 4139 12 the the DT 40404 4139 13 Silurian Silurian NNP 40404 4139 14 , , , 40404 4139 15 where where WRB 40404 4139 16 they -PRON- PRP 40404 4139 17 first first RB 40404 4139 18 became become VBD 40404 4139 19 abundant abundant JJ 40404 4139 20 . . . 40404 4140 1 = = NFP 40404 4140 2 Echinoderms.= Echinoderms.= NNP 40404 4140 3 The the DT 40404 4140 4 cystoid cystoid NN 40404 4140 5 reaches reach VBZ 40404 4140 6 its -PRON- PRP$ 40404 4140 7 climax climax NN 40404 4140 8 , , , 40404 4140 9 but but CC 40404 4140 10 there there EX 40404 4140 11 appear appear VBP 40404 4140 12 now now RB 40404 4140 13 two two CD 40404 4140 14 higher high JJR 40404 4140 15 types type NNS 40404 4140 16 of of IN 40404 4140 17 echinoderms,--the echinoderms,--the DT 40404 4140 18 crinoid crinoid NNP 40404 4140 19 and and CC 40404 4140 20 the the DT 40404 4140 21 starfish starfish NN 40404 4140 22 . . . 40404 4141 1 The the DT 40404 4141 2 _ _ NNP 40404 4141 3 crinoid crinoid NN 40404 4141 4 _ _ NNP 40404 4141 5 , , , 40404 4141 6 named name VBN 40404 4141 7 from from IN 40404 4141 8 its -PRON- PRP$ 40404 4141 9 resemblance resemblance NN 40404 4141 10 to to IN 40404 4141 11 the the DT 40404 4141 12 lily lily NN 40404 4141 13 , , , 40404 4141 14 is be VBZ 40404 4141 15 like like IN 40404 4141 16 the the DT 40404 4141 17 cystoid cystoid NN 40404 4141 18 in in IN 40404 4141 19 many many JJ 40404 4141 20 respects respect NNS 40404 4141 21 , , , 40404 4141 22 but but CC 40404 4141 23 has have VBZ 40404 4141 24 a a DT 40404 4141 25 longer long JJR 40404 4141 26 stem stem NN 40404 4141 27 and and CC 40404 4141 28 supports support VBZ 40404 4141 29 a a DT 40404 4141 30 crown crown NN 40404 4141 31 of of IN 40404 4141 32 plumose plumose JJ 40404 4141 33 arms arm NNS 40404 4141 34 . . . 40404 4142 1 Stirring stir VBG 40404 4142 2 the the DT 40404 4142 3 water water NN 40404 4142 4 with with IN 40404 4142 5 these these DT 40404 4142 6 arms arm NNS 40404 4142 7 , , , 40404 4142 8 it -PRON- PRP 40404 4142 9 creates create VBZ 40404 4142 10 currents current NNS 40404 4142 11 by by IN 40404 4142 12 which which WDT 40404 4142 13 particles particle NNS 40404 4142 14 of of IN 40404 4142 15 food food NN 40404 4142 16 are be VBP 40404 4142 17 wafted waft VBN 40404 4142 18 to to IN 40404 4142 19 its -PRON- PRP$ 40404 4142 20 mouth mouth NN 40404 4142 21 . . . 40404 4143 1 Crinoids crinoid NNS 40404 4143 2 are be VBP 40404 4143 3 rare rare JJ 40404 4143 4 at at IN 40404 4143 5 the the DT 40404 4143 6 present present JJ 40404 4143 7 time time NN 40404 4143 8 , , , 40404 4143 9 but but CC 40404 4143 10 they -PRON- PRP 40404 4143 11 grew grow VBD 40404 4143 12 in in IN 40404 4143 13 the the DT 40404 4143 14 greatest great JJS 40404 4143 15 profusion profusion NN 40404 4143 16 in in IN 40404 4143 17 the the DT 40404 4143 18 warm warm JJ 40404 4143 19 Ordovician ordovician JJ 40404 4143 20 seas sea NNS 40404 4143 21 and and CC 40404 4143 22 for for IN 40404 4143 23 long long JJ 40404 4143 24 ages age NNS 40404 4143 25 thereafter thereafter RB 40404 4143 26 . . . 40404 4144 1 In in IN 40404 4144 2 many many JJ 40404 4144 3 places place NNS 40404 4144 4 the the DT 40404 4144 5 sea sea NN 40404 4144 6 floor floor NN 40404 4144 7 was be VBD 40404 4144 8 beautiful beautiful JJ 40404 4144 9 with with IN 40404 4144 10 these these DT 40404 4144 11 graceful graceful JJ 40404 4144 12 , , , 40404 4144 13 flowerlike flowerlike JJ 40404 4144 14 forms form NNS 40404 4144 15 , , , 40404 4144 16 as as IN 40404 4144 17 with with IN 40404 4144 18 fields field NNS 40404 4144 19 of of IN 40404 4144 20 long long RB 40404 4144 21 - - HYPH 40404 4144 22 stemmed stem VBN 40404 4144 23 lilies lily NNS 40404 4144 24 . . . 40404 4145 1 Of of IN 40404 4145 2 the the DT 40404 4145 3 higher high JJR 40404 4145 4 , , , 40404 4145 5 free free RB 40404 4145 6 - - HYPH 40404 4145 7 moving move VBG 40404 4145 8 classes class NNS 40404 4145 9 of of IN 40404 4145 10 the the DT 40404 4145 11 echinoderms echinoderm NNS 40404 4145 12 , , , 40404 4145 13 starfish starfish JJ 40404 4145 14 are be VBP 40404 4145 15 more more RBR 40404 4145 16 numerous numerous JJ 40404 4145 17 than than IN 40404 4145 18 in in IN 40404 4145 19 the the DT 40404 4145 20 Cambrian Cambrian NNP 40404 4145 21 , , , 40404 4145 22 and and CC 40404 4145 23 sea sea NN 40404 4145 24 urchins urchin NNS 40404 4145 25 make make VBP 40404 4145 26 their -PRON- PRP$ 40404 4145 27 appearance appearance NN 40404 4145 28 in in IN 40404 4145 29 rare rare JJ 40404 4145 30 archaic archaic NNP 40404 4145 31 forms form NNS 40404 4145 32 . . . 40404 4146 1 [ [ -LRB- 40404 4146 2 Illustration illustration NN 40404 4146 3 : : : 40404 4146 4 Fig Fig NNP 40404 4146 5 . . . 40404 4147 1 279 279 CD 40404 4147 2 . . . 40404 4148 1 Crinoid Crinoid NNP 40404 4148 2 , , , 40404 4148 3 a a DT 40404 4148 4 Jurassic Jurassic NNP 40404 4148 5 Species Species NNP 40404 4148 6 ] ] -RRB- 40404 4148 7 [ [ -LRB- 40404 4148 8 Illustration illustration NN 40404 4148 9 : : : 40404 4148 10 Fig Fig NNP 40404 4148 11 . . . 40404 4149 1 280 280 CD 40404 4149 2 . . . 40404 4150 1 An an DT 40404 4150 2 Ordovician ordovician JJ 40404 4150 3 Starfish Starfish NNP 40404 4150 4 ] ] -RRB- 40404 4150 5 [ [ -LRB- 40404 4150 6 Illustration illustration NN 40404 4150 7 : : : 40404 4150 8 Fig Fig NNP 40404 4150 9 . . . 40404 4151 1 281 281 CD 40404 4151 2 . . . 40404 4152 1 An an DT 40404 4152 2 Ordovician Ordovician NNP 40404 4152 3 Sea Sea NNP 40404 4152 4 Urchin Urchin NNP 40404 4152 5 ] ] -RRB- 40404 4152 6 [ [ -LRB- 40404 4152 7 Illustration illustration NN 40404 4152 8 : : : 40404 4152 9 Fig Fig NNP 40404 4152 10 . . . 40404 4153 1 282 282 CD 40404 4153 2 . . . 40404 4154 1 Eurypterus Eurypterus NNP 40404 4154 2 ] ] -RRB- 40404 4154 3 = = SYM 40404 4154 4 Crustaceans.= Crustaceans.= NNP 40404 4154 5 Trilobites Trilobites NNP 40404 4154 6 now now RB 40404 4154 7 reach reach VBP 40404 4154 8 their -PRON- PRP$ 40404 4154 9 greatest great JJS 40404 4154 10 development development NN 40404 4154 11 and and CC 40404 4154 12 more more JJR 40404 4154 13 than than IN 40404 4154 14 eleven eleven CD 40404 4154 15 hundred hundred CD 40404 4154 16 species specie NNS 40404 4154 17 have have VBP 40404 4154 18 been be VBN 40404 4154 19 described describe VBN 40404 4154 20 from from IN 40404 4154 21 the the DT 40404 4154 22 rocks rock NNS 40404 4154 23 of of IN 40404 4154 24 this this DT 40404 4154 25 period period NN 40404 4154 26 . . . 40404 4155 1 It -PRON- PRP 40404 4155 2 is be VBZ 40404 4155 3 interesting interesting JJ 40404 4155 4 to to TO 40404 4155 5 note note VB 40404 4155 6 that that IN 40404 4155 7 in in IN 40404 4155 8 many many JJ 40404 4155 9 species specie NNS 40404 4155 10 the the DT 40404 4155 11 segments segment NNS 40404 4155 12 of of IN 40404 4155 13 the the DT 40404 4155 14 thorax thorax NN 40404 4155 15 have have VBP 40404 4155 16 now now RB 40404 4155 17 come come VBN 40404 4155 18 to to TO 40404 4155 19 be be VB 40404 4155 20 so so RB 40404 4155 21 shaped shaped JJ 40404 4155 22 that that IN 40404 4155 23 they -PRON- PRP 40404 4155 24 move move VBP 40404 4155 25 freely freely RB 40404 4155 26 on on IN 40404 4155 27 one one CD 40404 4155 28 another another DT 40404 4155 29 . . . 40404 4156 1 Unlike unlike IN 40404 4156 2 their -PRON- PRP$ 40404 4156 3 Cambrian cambrian JJ 40404 4156 4 ancestors ancestor NNS 40404 4156 5 , , , 40404 4156 6 many many JJ 40404 4156 7 of of IN 40404 4156 8 the the DT 40404 4156 9 Ordovician ordovician JJ 40404 4156 10 trilobites trilobite NNS 40404 4156 11 could could MD 40404 4156 12 roll roll VB 40404 4156 13 themselves -PRON- PRP 40404 4156 14 into into IN 40404 4156 15 balls ball NNS 40404 4156 16 at at IN 40404 4156 17 the the DT 40404 4156 18 approach approach NN 40404 4156 19 of of IN 40404 4156 20 danger danger NN 40404 4156 21 . . . 40404 4157 1 It -PRON- PRP 40404 4157 2 is be VBZ 40404 4157 3 in in IN 40404 4157 4 this this DT 40404 4157 5 attitude attitude NN 40404 4157 6 , , , 40404 4157 7 taken take VBN 40404 4157 8 at at IN 40404 4157 9 the the DT 40404 4157 10 approach approach NN 40404 4157 11 of of IN 40404 4157 12 death death NN 40404 4157 13 , , , 40404 4157 14 that that IN 40404 4157 15 trilobites trilobite NNS 40404 4157 16 are be VBP 40404 4157 17 often often RB 40404 4157 18 found find VBN 40404 4157 19 in in IN 40404 4157 20 the the DT 40404 4157 21 Ordovician ordovician JJ 40404 4157 22 and and CC 40404 4157 23 later later JJ 40404 4157 24 rocks rock NNS 40404 4157 25 . . . 40404 4158 1 The the DT 40404 4158 2 gigantic gigantic JJ 40404 4158 3 crustaceans crustacean NNS 40404 4158 4 called call VBD 40404 4158 5 the the DT 40404 4158 6 _ _ NNP 40404 4158 7 eurypterids eurypterid NNS 40404 4158 8 _ _ NNP 40404 4158 9 were be VBD 40404 4158 10 also also RB 40404 4158 11 present present JJ 40404 4158 12 in in IN 40404 4158 13 this this DT 40404 4158 14 period period NN 40404 4158 15 ( ( -LRB- 40404 4158 16 Fig fig NN 40404 4158 17 . . . 40404 4159 1 282 282 CD 40404 4159 2 ) ) -RRB- 40404 4159 3 . . . 40404 4160 1 The the DT 40404 4160 2 arthropods arthropod NNS 40404 4160 3 had have VBD 40404 4160 4 now now RB 40404 4160 5 seized seize VBN 40404 4160 6 upon upon IN 40404 4160 7 the the DT 40404 4160 8 land land NN 40404 4160 9 . . . 40404 4161 1 Centipedes centipede NNS 40404 4161 2 and and CC 40404 4161 3 insects insect NNS 40404 4161 4 of of IN 40404 4161 5 a a DT 40404 4161 6 low low JJ 40404 4161 7 type type NN 40404 4161 8 , , , 40404 4161 9 the the DT 40404 4161 10 earliest early JJS 40404 4161 11 known know VBN 40404 4161 12 land land NN 40404 4161 13 animals animal NNS 40404 4161 14 , , , 40404 4161 15 have have VBP 40404 4161 16 been be VBN 40404 4161 17 discovered discover VBN 40404 4161 18 in in IN 40404 4161 19 strata strata NN 40404 4161 20 of of IN 40404 4161 21 this this DT 40404 4161 22 system system NN 40404 4161 23 . . . 40404 4162 1 [ [ -LRB- 40404 4162 2 Illustration illustration NN 40404 4162 3 : : : 40404 4162 4 Fig Fig NNP 40404 4162 5 . . . 40404 4163 1 283 283 CD 40404 4163 2 . . . 40404 4164 1 A a DT 40404 4164 2 Bryozoan Bryozoan NNP 40404 4164 3 ] ] -RRB- 40404 4164 4 = = VBZ 40404 4164 5 Bryozoans.= bryozoans.= NN 40404 4164 6 No no DT 40404 4164 7 fossils fossil NNS 40404 4164 8 are be VBP 40404 4164 9 more more RBR 40404 4164 10 common common JJ 40404 4164 11 in in IN 40404 4164 12 the the DT 40404 4164 13 limestones limestone NNS 40404 4164 14 of of IN 40404 4164 15 the the DT 40404 4164 16 time time NN 40404 4164 17 than than IN 40404 4164 18 the the DT 40404 4164 19 small small JJ 40404 4164 20 branching branching NN 40404 4164 21 stems stem NNS 40404 4164 22 and and CC 40404 4164 23 lacelike lacelike JJ 40404 4164 24 mats mat NNS 40404 4164 25 of of IN 40404 4164 26 the the DT 40404 4164 27 bryozoans,--the bryozoans,--the NNP 40404 4164 28 skeletons skeleton NNS 40404 4164 29 of of IN 40404 4164 30 colonies colony NNS 40404 4164 31 of of IN 40404 4164 32 a a DT 40404 4164 33 minute minute NN 40404 4164 34 animal animal NN 40404 4164 35 allied ally VBN 40404 4164 36 in in IN 40404 4164 37 structure structure NN 40404 4164 38 to to IN 40404 4164 39 the the DT 40404 4164 40 brachiopod brachiopod NN 40404 4164 41 . . . 40404 4165 1 [ [ -LRB- 40404 4165 2 Illustration illustration NN 40404 4165 3 : : : 40404 4165 4 Fig Fig NNP 40404 4165 5 . . . 40404 4166 1 284 284 CD 40404 4166 2 . . . 40404 4167 1 Ordovician Ordovician NNP 40404 4167 2 Brachiopods Brachiopods NNP 40404 4167 3 ] ] -RRB- 40404 4167 4 = = SYM 40404 4167 5 Brachiopods.= Brachiopods.= NNP 40404 4167 6 These these DT 40404 4167 7 multiplied multiply VBN 40404 4167 8 greatly greatly RB 40404 4167 9 , , , 40404 4167 10 and and CC 40404 4167 11 in in IN 40404 4167 12 places place NNS 40404 4167 13 their -PRON- PRP$ 40404 4167 14 shells shell NNS 40404 4167 15 formed form VBD 40404 4167 16 thick thick JJ 40404 4167 17 beds bed NNS 40404 4167 18 of of IN 40404 4167 19 coquina coquina NNP 40404 4167 20 . . . 40404 4168 1 They -PRON- PRP 40404 4168 2 still still RB 40404 4168 3 greatly greatly RB 40404 4168 4 surpassed surpass VBD 40404 4168 5 the the DT 40404 4168 6 mollusks mollusk NNS 40404 4168 7 in in IN 40404 4168 8 numbers number NNS 40404 4168 9 . . . 40404 4169 1 = = NFP 40404 4169 2 Cephalopods.= cephalopods.= NN 40404 4169 3 Among among IN 40404 4169 4 the the DT 40404 4169 5 mollusks mollusk NNS 40404 4169 6 we -PRON- PRP 40404 4169 7 must must MD 40404 4169 8 note note VB 40404 4169 9 the the DT 40404 4169 10 evolution evolution NN 40404 4169 11 of of IN 40404 4169 12 the the DT 40404 4169 13 cephalopods cephalopod NNS 40404 4169 14 . . . 40404 4170 1 The the DT 40404 4170 2 primitive primitive JJ 40404 4170 3 straight straight JJ 40404 4170 4 Orthoceras Orthoceras NNP 40404 4170 5 has have VBZ 40404 4170 6 now now RB 40404 4170 7 become become VBN 40404 4170 8 abundant abundant JJ 40404 4170 9 . . . 40404 4171 1 But but CC 40404 4171 2 in in IN 40404 4171 3 addition addition NN 40404 4171 4 to to IN 40404 4171 5 this this DT 40404 4171 6 ancestral ancestral JJ 40404 4171 7 type type NN 40404 4171 8 there there EX 40404 4171 9 appears appear VBZ 40404 4171 10 a a DT 40404 4171 11 succession succession NN 40404 4171 12 of of IN 40404 4171 13 forms form NNS 40404 4171 14 more more RBR 40404 4171 15 and and CC 40404 4171 16 more more RBR 40404 4171 17 curved curved JJ 40404 4171 18 and and CC 40404 4171 19 closely closely RB 40404 4171 20 coiled coil VBN 40404 4171 21 , , , 40404 4171 22 as as IN 40404 4171 23 illustrated illustrate VBN 40404 4171 24 in in IN 40404 4171 25 Figure Figure NNP 40404 4171 26 285 285 CD 40404 4171 27 . . . 40404 4172 1 The the DT 40404 4172 2 nautilus nautilus NN 40404 4172 3 , , , 40404 4172 4 which which WDT 40404 4172 5 began begin VBD 40404 4172 6 its -PRON- PRP$ 40404 4172 7 course course NN 40404 4172 8 in in IN 40404 4172 9 this this DT 40404 4172 10 period period NN 40404 4172 11 , , , 40404 4172 12 crawls crawl VBZ 40404 4172 13 on on IN 40404 4172 14 the the DT 40404 4172 15 bottom bottom NN 40404 4172 16 of of IN 40404 4172 17 our -PRON- PRP$ 40404 4172 18 present present JJ 40404 4172 19 seas sea NNS 40404 4172 20 . . . 40404 4173 1 [ [ -LRB- 40404 4173 2 Illustration illustration NN 40404 4173 3 : : : 40404 4173 4 Fig Fig NNP 40404 4173 5 . . . 40404 4174 1 285 285 CD 40404 4174 2 . . . 40404 4175 1 A a DT 40404 4175 2 , , , 40404 4175 3 Cyrtoceras Cyrtoceras NNPS 40404 4175 4 ; ; : 40404 4175 5 B b NN 40404 4175 6 , , , 40404 4175 7 Trochoceras Trochoceras NNP 40404 4175 8 ; ; : 40404 4175 9 C C NNP 40404 4175 10 , , , 40404 4175 11 Lituites Lituites NNPS 40404 4175 12 ] ] -RRB- 40404 4175 13 [ [ -LRB- 40404 4175 14 Illustration illustration NN 40404 4175 15 : : : 40404 4175 16 Fig Fig NNP 40404 4175 17 . . . 40404 4176 1 286 286 CD 40404 4176 2 . . . 40404 4177 1 Nautilus Nautilus NNP 40404 4177 2 ] ] -RRB- 40404 4177 3 = = VBZ 40404 4177 4 Vertebrates.= Vertebrates.= NNP 40404 4177 5 The the DT 40404 4177 6 most most RBS 40404 4177 7 important important JJ 40404 4177 8 record record NN 40404 4177 9 of of IN 40404 4177 10 the the DT 40404 4177 11 Ordovician Ordovician NNP 40404 4177 12 is be VBZ 40404 4177 13 that that DT 40404 4177 14 of of IN 40404 4177 15 the the DT 40404 4177 16 appearance appearance NN 40404 4177 17 of of IN 40404 4177 18 a a DT 40404 4177 19 new new JJ 40404 4177 20 and and CC 40404 4177 21 higher high JJR 40404 4177 22 type type NN 40404 4177 23 , , , 40404 4177 24 with with IN 40404 4177 25 possibilities possibility NNS 40404 4177 26 of of IN 40404 4177 27 development development NN 40404 4177 28 lying lie VBG 40404 4177 29 hidden hide VBN 40404 4177 30 in in IN 40404 4177 31 its -PRON- PRP$ 40404 4177 32 structure structure NN 40404 4177 33 that that IN 40404 4177 34 the the DT 40404 4177 35 mollusk mollusk NN 40404 4177 36 and and CC 40404 4177 37 the the DT 40404 4177 38 insect insect NN 40404 4177 39 could could MD 40404 4177 40 never never RB 40404 4177 41 hope hope VB 40404 4177 42 to to TO 40404 4177 43 reach reach VB 40404 4177 44 . . . 40404 4178 1 Scales scale NNS 40404 4178 2 and and CC 40404 4178 3 plates plate NNS 40404 4178 4 of of IN 40404 4178 5 minute minute NN 40404 4178 6 fishes fish NNS 40404 4178 7 found find VBN 40404 4178 8 in in IN 40404 4178 9 the the DT 40404 4178 10 Ordovician ordovician JJ 40404 4178 11 rocks rock NNS 40404 4178 12 near near IN 40404 4178 13 Canon Canon NNP 40404 4178 14 City City NNP 40404 4178 15 , , , 40404 4178 16 Colorado Colorado NNP 40404 4178 17 , , , 40404 4178 18 show show VBP 40404 4178 19 that that IN 40404 4178 20 the the DT 40404 4178 21 humblest humblest NN 40404 4178 22 of of IN 40404 4178 23 the the DT 40404 4178 24 vertebrates vertebrate NNS 40404 4178 25 had have VBD 40404 4178 26 already already RB 40404 4178 27 made make VBN 40404 4178 28 its -PRON- PRP$ 40404 4178 29 appearance appearance NN 40404 4178 30 . . . 40404 4179 1 But but CC 40404 4179 2 it -PRON- PRP 40404 4179 3 is be VBZ 40404 4179 4 probable probable JJ 40404 4179 5 that that IN 40404 4179 6 vertebrates vertebrate NNS 40404 4179 7 had have VBD 40404 4179 8 been be VBN 40404 4179 9 on on IN 40404 4179 10 the the DT 40404 4179 11 earth earth NN 40404 4179 12 for for IN 40404 4179 13 ages age NNS 40404 4179 14 before before IN 40404 4179 15 this this DT 40404 4179 16 in in IN 40404 4179 17 lowly lowly JJ 40404 4179 18 types type NNS 40404 4179 19 , , , 40404 4179 20 which which WDT 40404 4179 21 , , , 40404 4179 22 being be VBG 40404 4179 23 destitute destitute NN 40404 4179 24 of of IN 40404 4179 25 hard hard JJ 40404 4179 26 parts part NNS 40404 4179 27 , , , 40404 4179 28 would would MD 40404 4179 29 leave leave VB 40404 4179 30 no no DT 40404 4179 31 record record NN 40404 4179 32 . . . 40404 4180 1 The the DT 40404 4180 2 Silurian Silurian NNP 40404 4180 3 The the DT 40404 4180 4 narrowing narrowing NN 40404 4180 5 of of IN 40404 4180 6 the the DT 40404 4180 7 seas sea NNS 40404 4180 8 and and CC 40404 4180 9 the the DT 40404 4180 10 emergence emergence NN 40404 4180 11 of of IN 40404 4180 12 the the DT 40404 4180 13 lands land NNS 40404 4180 14 which which WDT 40404 4180 15 characterized characterize VBD 40404 4180 16 the the DT 40404 4180 17 closing closing NN 40404 4180 18 epoch epoch NN 40404 4180 19 of of IN 40404 4180 20 the the DT 40404 4180 21 Ordovician Ordovician NNP 40404 4180 22 in in IN 40404 4180 23 eastern eastern JJ 40404 4180 24 North North NNP 40404 4180 25 America America NNP 40404 4180 26 continue continue VBP 40404 4180 27 into into IN 40404 4180 28 the the DT 40404 4180 29 succeeding succeed VBG 40404 4180 30 period period NN 40404 4180 31 of of IN 40404 4180 32 the the DT 40404 4180 33 Silurian Silurian NNP 40404 4180 34 . . . 40404 4181 1 New new JJ 40404 4181 2 species specie NNS 40404 4181 3 appear appear VBP 40404 4181 4 and and CC 40404 4181 5 many many JJ 40404 4181 6 old old JJ 40404 4181 7 species specie NNS 40404 4181 8 now now RB 40404 4181 9 become become VBP 40404 4181 10 extinct extinct JJ 40404 4181 11 . . . 40404 4182 1 = = NFP 40404 4182 2 The the DT 40404 4182 3 Appalachian Appalachian NNP 40404 4182 4 region.= region.= CD 40404 4182 5 Where where WRB 40404 4182 6 the the DT 40404 4182 7 Silurian silurian JJ 40404 4182 8 system system NN 40404 4182 9 is be VBZ 40404 4182 10 most most RBS 40404 4182 11 fully fully RB 40404 4182 12 developed develop VBN 40404 4182 13 , , , 40404 4182 14 from from IN 40404 4182 15 New New NNP 40404 4182 16 York York NNP 40404 4182 17 southward southward RB 40404 4182 18 along along IN 40404 4182 19 the the DT 40404 4182 20 Appalachian Appalachian NNP 40404 4182 21 Mountains Mountains NNPS 40404 4182 22 , , , 40404 4182 23 it -PRON- PRP 40404 4182 24 comprises comprise VBZ 40404 4182 25 four four CD 40404 4182 26 series series NN 40404 4182 27 : : : 40404 4182 28 4 4 CD 40404 4182 29 Salina Salina NNP 40404 4182 30 ..... ..... HYPH 40404 4182 31 shales shale NNS 40404 4182 32 , , , 40404 4182 33 impure impure NN 40404 4182 34 limestones limestone NNS 40404 4182 35 , , , 40404 4182 36 gypsum gypsum NN 40404 4182 37 , , , 40404 4182 38 salt salt NN 40404 4182 39 3 3 CD 40404 4182 40 Niagara Niagara NNP 40404 4182 41 ..... ..... . 40404 4182 42 chiefly chiefly RB 40404 4182 43 limestones limestone VBZ 40404 4182 44 2 2 CD 40404 4182 45 Clinton Clinton NNP 40404 4182 46 ..... ..... . 40404 4182 47 sandstones sandstone NNS 40404 4182 48 , , , 40404 4182 49 shales shale NNS 40404 4182 50 , , , 40404 4182 51 with with IN 40404 4182 52 some some DT 40404 4182 53 limestones limestone NNS 40404 4182 54 1 1 CD 40404 4182 55 Medina Medina NNP 40404 4182 56 ..... ..... NFP 40404 4182 57 conglomerates conglomerate VBZ 40404 4182 58 , , , 40404 4182 59 sandstones sandstone VBZ 40404 4182 60 The the DT 40404 4182 61 rocks rock NNS 40404 4182 62 of of IN 40404 4182 63 these these DT 40404 4182 64 series serie NNS 40404 4182 65 are be VBP 40404 4182 66 shallow shallow JJ 40404 4182 67 - - HYPH 40404 4182 68 water water NN 40404 4182 69 deposits deposit NNS 40404 4182 70 and and CC 40404 4182 71 reach reach VB 40404 4182 72 the the DT 40404 4182 73 total total JJ 40404 4182 74 thickness thickness NN 40404 4182 75 of of IN 40404 4182 76 some some DT 40404 4182 77 five five CD 40404 4182 78 thousand thousand CD 40404 4182 79 feet foot NNS 40404 4182 80 . . . 40404 4183 1 Evidently evidently RB 40404 4183 2 they -PRON- PRP 40404 4183 3 were be VBD 40404 4183 4 laid lay VBN 40404 4183 5 over over IN 40404 4183 6 an an DT 40404 4183 7 area area NN 40404 4183 8 which which WDT 40404 4183 9 was be VBD 40404 4183 10 on on IN 40404 4183 11 the the DT 40404 4183 12 whole whole NN 40404 4183 13 gradually gradually RB 40404 4183 14 subsiding subsiding JJ 40404 4183 15 , , , 40404 4183 16 although although IN 40404 4183 17 with with IN 40404 4183 18 various various JJ 40404 4183 19 gentle gentle JJ 40404 4183 20 oscillations oscillation NNS 40404 4183 21 which which WDT 40404 4183 22 are be VBP 40404 4183 23 recorded record VBN 40404 4183 24 in in IN 40404 4183 25 the the DT 40404 4183 26 different different JJ 40404 4183 27 formations formation NNS 40404 4183 28 . . . 40404 4184 1 The the DT 40404 4184 2 coarse coarse JJ 40404 4184 3 sands sand NNS 40404 4184 4 of of IN 40404 4184 5 the the DT 40404 4184 6 heavy heavy JJ 40404 4184 7 Medina Medina NNP 40404 4184 8 formations formation NNS 40404 4184 9 record record VBP 40404 4184 10 a a DT 40404 4184 11 period period NN 40404 4184 12 of of IN 40404 4184 13 uplift uplift NN 40404 4184 14 of of IN 40404 4184 15 the the DT 40404 4184 16 oldland oldland NN 40404 4184 17 of of IN 40404 4184 18 Appalachia Appalachia NNP 40404 4184 19 , , , 40404 4184 20 when when WRB 40404 4184 21 erosion erosion NN 40404 4184 22 went go VBD 40404 4184 23 on on RP 40404 4184 24 rapidly rapidly RB 40404 4184 25 and and CC 40404 4184 26 coarse coarse JJ 40404 4184 27 waste waste NN 40404 4184 28 in in IN 40404 4184 29 abundance abundance NN 40404 4184 30 was be VBD 40404 4184 31 brought bring VBN 40404 4184 32 down down RP 40404 4184 33 from from IN 40404 4184 34 the the DT 40404 4184 35 hills hill NNS 40404 4184 36 by by IN 40404 4184 37 swift swift JJ 40404 4184 38 streams stream NNS 40404 4184 39 and and CC 40404 4184 40 spread spread VBN 40404 4184 41 by by IN 40404 4184 42 the the DT 40404 4184 43 waves wave NNS 40404 4184 44 in in IN 40404 4184 45 wide wide JJ 40404 4184 46 , , , 40404 4184 47 sandy sandy JJ 40404 4184 48 flats flat NNS 40404 4184 49 . . . 40404 4185 1 As as IN 40404 4185 2 the the DT 40404 4185 3 lands land NNS 40404 4185 4 were be VBD 40404 4185 5 worn wear VBN 40404 4185 6 lower low JJR 40404 4185 7 the the DT 40404 4185 8 waste waste NN 40404 4185 9 became become VBD 40404 4185 10 finer fine JJR 40404 4185 11 , , , 40404 4185 12 and and CC 40404 4185 13 during during IN 40404 4185 14 an an DT 40404 4185 15 epoch epoch NN 40404 4185 16 of of IN 40404 4185 17 transition transition NN 40404 4185 18 -- -- : 40404 4185 19 the the DT 40404 4185 20 Clinton Clinton NNP 40404 4185 21 -- -- : 40404 4185 22 there there EX 40404 4185 23 were be VBD 40404 4185 24 deposited deposit VBN 40404 4185 25 various various JJ 40404 4185 26 formations formation NNS 40404 4185 27 of of IN 40404 4185 28 sandstones sandstone NNS 40404 4185 29 , , , 40404 4185 30 shales shale NNS 40404 4185 31 , , , 40404 4185 32 and and CC 40404 4185 33 limestones limestone NNS 40404 4185 34 . . . 40404 4186 1 The the DT 40404 4186 2 Niagara Niagara NNP 40404 4186 3 limestones limestone VBZ 40404 4186 4 testify testify VB 40404 4186 5 to to IN 40404 4186 6 a a DT 40404 4186 7 long long JJ 40404 4186 8 epoch epoch NN 40404 4186 9 of of IN 40404 4186 10 repose repose NN 40404 4186 11 , , , 40404 4186 12 when when WRB 40404 4186 13 low low RB 40404 4186 14 - - HYPH 40404 4186 15 lying lie VBG 40404 4186 16 lands land NNS 40404 4186 17 sent send VBD 40404 4186 18 little little JJ 40404 4186 19 waste waste NN 40404 4186 20 down down RP 40404 4186 21 to to IN 40404 4186 22 the the DT 40404 4186 23 sea sea NN 40404 4186 24 . . . 40404 4187 1 The the DT 40404 4187 2 gypsum gypsum NN 40404 4187 3 and and CC 40404 4187 4 salt salt NN 40404 4187 5 deposits deposit NNS 40404 4187 6 of of IN 40404 4187 7 the the DT 40404 4187 8 Salina Salina NNP 40404 4187 9 show show VBP 40404 4187 10 that that IN 40404 4187 11 toward toward IN 40404 4187 12 the the DT 40404 4187 13 close close NN 40404 4187 14 of of IN 40404 4187 15 the the DT 40404 4187 16 Silurian silurian JJ 40404 4187 17 period period NN 40404 4187 18 a a DT 40404 4187 19 slight slight JJ 40404 4187 20 oscillation oscillation NN 40404 4187 21 brought bring VBD 40404 4187 22 the the DT 40404 4187 23 sea sea NN 40404 4187 24 floor floor NN 40404 4187 25 nearer nearer RB 40404 4187 26 to to IN 40404 4187 27 the the DT 40404 4187 28 surface surface NN 40404 4187 29 , , , 40404 4187 30 and and CC 40404 4187 31 at at IN 40404 4187 32 the the DT 40404 4187 33 north north NN 40404 4187 34 cut cut VBN 40404 4187 35 off off RP 40404 4187 36 extensive extensive JJ 40404 4187 37 tracts tract NNS 40404 4187 38 from from IN 40404 4187 39 the the DT 40404 4187 40 interior interior NNP 40404 4187 41 sea sea NN 40404 4187 42 . . . 40404 4188 1 In in IN 40404 4188 2 these these DT 40404 4188 3 wide wide JJ 40404 4188 4 lagoons lagoon NNS 40404 4188 5 , , , 40404 4188 6 which which WDT 40404 4188 7 now now RB 40404 4188 8 and and CC 40404 4188 9 then then RB 40404 4188 10 regained regain VBD 40404 4188 11 access access NN 40404 4188 12 to to IN 40404 4188 13 the the DT 40404 4188 14 open open JJ 40404 4188 15 sea sea NN 40404 4188 16 and and CC 40404 4188 17 obtained obtain VBD 40404 4188 18 new new JJ 40404 4188 19 supplies supply NNS 40404 4188 20 of of IN 40404 4188 21 salt salt NN 40404 4188 22 water water NN 40404 4188 23 , , , 40404 4188 24 beds bed NNS 40404 4188 25 of of IN 40404 4188 26 salt salt NN 40404 4188 27 and and CC 40404 4188 28 gypsum gypsum NN 40404 4188 29 were be VBD 40404 4188 30 deposited deposit VBN 40404 4188 31 as as IN 40404 4188 32 the the DT 40404 4188 33 briny briny NN 40404 4188 34 waters water NNS 40404 4188 35 became become VBD 40404 4188 36 concentrated concentrate VBN 40404 4188 37 by by IN 40404 4188 38 evaporation evaporation NN 40404 4188 39 under under IN 40404 4188 40 a a DT 40404 4188 41 desert desert NN 40404 4188 42 climate climate NN 40404 4188 43 . . . 40404 4189 1 Along along IN 40404 4189 2 with with IN 40404 4189 3 these these DT 40404 4189 4 beds bed NNS 40404 4189 5 there there EX 40404 4189 6 were be VBD 40404 4189 7 also also RB 40404 4189 8 laid lay VBN 40404 4189 9 shales shale NNS 40404 4189 10 and and CC 40404 4189 11 impure impure NN 40404 4189 12 limestones limestone NNS 40404 4189 13 . . . 40404 4190 1 In in IN 40404 4190 2 New New NNP 40404 4190 3 York York NNP 40404 4190 4 the the DT 40404 4190 5 " " `` 40404 4190 6 salt salt NN 40404 4190 7 pans pan NNS 40404 4190 8 " " '' 40404 4190 9 of of IN 40404 4190 10 the the DT 40404 4190 11 Salina Salina NNP 40404 4190 12 extended extend VBD 40404 4190 13 over over IN 40404 4190 14 an an DT 40404 4190 15 area area NN 40404 4190 16 one one CD 40404 4190 17 hundred hundred CD 40404 4190 18 and and CC 40404 4190 19 fifty fifty CD 40404 4190 20 miles mile NNS 40404 4190 21 long long RB 40404 4190 22 from from IN 40404 4190 23 east east NN 40404 4190 24 to to IN 40404 4190 25 west west NN 40404 4190 26 and and CC 40404 4190 27 sixty sixty JJ 40404 4190 28 miles mile NNS 40404 4190 29 wide wide JJ 40404 4190 30 , , , 40404 4190 31 and and CC 40404 4190 32 similar similar JJ 40404 4190 33 salt salt NN 40404 4190 34 marshes marsh NNS 40404 4190 35 occurred occur VBD 40404 4190 36 as as RB 40404 4190 37 far far RB 40404 4190 38 west west NNP 40404 4190 39 as as IN 40404 4190 40 Cleveland Cleveland NNP 40404 4190 41 , , , 40404 4190 42 Ohio Ohio NNP 40404 4190 43 , , , 40404 4190 44 and and CC 40404 4190 45 Goderich Goderich NNP 40404 4190 46 on on IN 40404 4190 47 Lake Lake NNP 40404 4190 48 Huron Huron NNP 40404 4190 49 . . . 40404 4191 1 At at IN 40404 4191 2 Ithaca Ithaca NNP 40404 4191 3 , , , 40404 4191 4 New New NNP 40404 4191 5 York York NNP 40404 4191 6 , , , 40404 4191 7 the the DT 40404 4191 8 series series NN 40404 4191 9 is be VBZ 40404 4191 10 fifteen fifteen CD 40404 4191 11 hundred hundred CD 40404 4191 12 feet foot NNS 40404 4191 13 thick thick JJ 40404 4191 14 , , , 40404 4191 15 and and CC 40404 4191 16 is be VBZ 40404 4191 17 buried bury VBN 40404 4191 18 beneath beneath IN 40404 4191 19 an an DT 40404 4191 20 equal equal JJ 40404 4191 21 thickness thickness NN 40404 4191 22 of of IN 40404 4191 23 later later JJ 40404 4191 24 strata strata NN 40404 4191 25 . . . 40404 4192 1 It -PRON- PRP 40404 4192 2 includes include VBZ 40404 4192 3 two two CD 40404 4192 4 hundred hundred CD 40404 4192 5 and and CC 40404 4192 6 fifty fifty CD 40404 4192 7 feet foot NNS 40404 4192 8 of of IN 40404 4192 9 solid solid JJ 40404 4192 10 salt salt NN 40404 4192 11 , , , 40404 4192 12 in in IN 40404 4192 13 several several JJ 40404 4192 14 distinct distinct JJ 40404 4192 15 beds bed NNS 40404 4192 16 , , , 40404 4192 17 each each DT 40404 4192 18 sealed seal VBN 40404 4192 19 within within IN 40404 4192 20 the the DT 40404 4192 21 shales shale NNS 40404 4192 22 of of IN 40404 4192 23 the the DT 40404 4192 24 series series NN 40404 4192 25 . . . 40404 4193 1 Would Would MD 40404 4193 2 you -PRON- PRP 40404 4193 3 expect expect VB 40404 4193 4 to to TO 40404 4193 5 find find VB 40404 4193 6 ancient ancient JJ 40404 4193 7 beds bed NNS 40404 4193 8 of of IN 40404 4193 9 rock rock NN 40404 4193 10 salt salt NN 40404 4193 11 inclosed inclose VBN 40404 4193 12 in in IN 40404 4193 13 beds bed NNS 40404 4193 14 of of IN 40404 4193 15 pervious pervious JJ 40404 4193 16 sandstone sandstone NN 40404 4193 17 ? ? . 40404 4194 1 The the DT 40404 4194 2 salt salt NN 40404 4194 3 beds bed NNS 40404 4194 4 of of IN 40404 4194 5 the the DT 40404 4194 6 Salina Salina NNP 40404 4194 7 are be VBP 40404 4194 8 of of IN 40404 4194 9 great great JJ 40404 4194 10 value value NN 40404 4194 11 . . . 40404 4195 1 They -PRON- PRP 40404 4195 2 are be VBP 40404 4195 3 reached reach VBN 40404 4195 4 by by IN 40404 4195 5 well well JJ 40404 4195 6 borings boring NNS 40404 4195 7 , , , 40404 4195 8 and and CC 40404 4195 9 their -PRON- PRP$ 40404 4195 10 brines brine NNS 40404 4195 11 are be VBP 40404 4195 12 evaporated evaporate VBN 40404 4195 13 by by IN 40404 4195 14 solar solar JJ 40404 4195 15 heat heat NN 40404 4195 16 and and CC 40404 4195 17 by by IN 40404 4195 18 boiling boil VBG 40404 4195 19 . . . 40404 4196 1 The the DT 40404 4196 2 rock rock NN 40404 4196 3 salt salt NN 40404 4196 4 is be VBZ 40404 4196 5 also also RB 40404 4196 6 mined mine VBN 40404 4196 7 from from IN 40404 4196 8 deep deep JJ 40404 4196 9 shafts shaft NNS 40404 4196 10 . . . 40404 4197 1 Similar similar JJ 40404 4197 2 deposits deposit NNS 40404 4197 3 of of IN 40404 4197 4 salt salt NN 40404 4197 5 , , , 40404 4197 6 formed form VBN 40404 4197 7 under under IN 40404 4197 8 like like JJ 40404 4197 9 conditions condition NNS 40404 4197 10 , , , 40404 4197 11 occur occur VBP 40404 4197 12 in in IN 40404 4197 13 the the DT 40404 4197 14 rocks rock NNS 40404 4197 15 of of IN 40404 4197 16 later later JJ 40404 4197 17 systems system NNS 40404 4197 18 down down RB 40404 4197 19 to to IN 40404 4197 20 the the DT 40404 4197 21 present present NN 40404 4197 22 . . . 40404 4198 1 The the DT 40404 4198 2 salt salt NN 40404 4198 3 beds bed NNS 40404 4198 4 of of IN 40404 4198 5 Texas Texas NNP 40404 4198 6 are be VBP 40404 4198 7 Permian permian JJ 40404 4198 8 , , , 40404 4198 9 those those DT 40404 4198 10 of of IN 40404 4198 11 Kansas Kansas NNP 40404 4198 12 are be VBP 40404 4198 13 Permian permian JJ 40404 4198 14 , , , 40404 4198 15 and and CC 40404 4198 16 those those DT 40404 4198 17 of of IN 40404 4198 18 Louisiana Louisiana NNP 40404 4198 19 are be VBP 40404 4198 20 Tertiary tertiary JJ 40404 4198 21 . . . 40404 4199 1 = = NFP 40404 4199 2 The the DT 40404 4199 3 Mississippi Mississippi NNP 40404 4199 4 valley.= valley.= VBD 40404 4199 5 The the DT 40404 4199 6 heavy heavy JJ 40404 4199 7 near near JJ 40404 4199 8 - - HYPH 40404 4199 9 shore shore NN 40404 4199 10 formations formation NNS 40404 4199 11 of of IN 40404 4199 12 the the DT 40404 4199 13 Silurian Silurian NNP 40404 4199 14 in in IN 40404 4199 15 the the DT 40404 4199 16 Appalachian appalachian JJ 40404 4199 17 region region NN 40404 4199 18 thin thin RB 40404 4199 19 out out IN 40404 4199 20 toward toward IN 40404 4199 21 the the DT 40404 4199 22 west west NN 40404 4199 23 . . . 40404 4200 1 The the DT 40404 4200 2 Medina Medina NNP 40404 4200 3 and and CC 40404 4200 4 the the DT 40404 4200 5 Clinton Clinton NNP 40404 4200 6 sandstones sandstone NNS 40404 4200 7 are be VBP 40404 4200 8 not not RB 40404 4200 9 found find VBN 40404 4200 10 west west NN 40404 4200 11 of of IN 40404 4200 12 Ohio Ohio NNP 40404 4200 13 , , , 40404 4200 14 where where WRB 40404 4200 15 the the DT 40404 4200 16 first first JJ 40404 4200 17 passes pass VBZ 40404 4200 18 into into IN 40404 4200 19 a a DT 40404 4200 20 shale shale NN 40404 4200 21 and and CC 40404 4200 22 the the DT 40404 4200 23 second second JJ 40404 4200 24 into into IN 40404 4200 25 a a DT 40404 4200 26 limestone limestone NN 40404 4200 27 . . . 40404 4201 1 The the DT 40404 4201 2 Niagara Niagara NNP 40404 4201 3 limestone limestone NN 40404 4201 4 , , , 40404 4201 5 however however RB 40404 4201 6 , , , 40404 4201 7 spreads spread VBZ 40404 4201 8 from from IN 40404 4201 9 the the DT 40404 4201 10 Hudson Hudson NNP 40404 4201 11 River River NNP 40404 4201 12 to to IN 40404 4201 13 beyond beyond IN 40404 4201 14 the the DT 40404 4201 15 Mississippi Mississippi NNP 40404 4201 16 , , , 40404 4201 17 a a DT 40404 4201 18 distance distance NN 40404 4201 19 of of IN 40404 4201 20 more more JJR 40404 4201 21 than than IN 40404 4201 22 a a DT 40404 4201 23 thousand thousand CD 40404 4201 24 miles mile NNS 40404 4201 25 . . . 40404 4202 1 During during IN 40404 4202 2 the the DT 40404 4202 3 Silurian silurian JJ 40404 4202 4 period period NN 40404 4202 5 the the DT 40404 4202 6 Mississippi Mississippi NNP 40404 4202 7 valley valley NN 40404 4202 8 region region NN 40404 4202 9 was be VBD 40404 4202 10 covered cover VBN 40404 4202 11 with with IN 40404 4202 12 a a DT 40404 4202 13 quiet quiet JJ 40404 4202 14 , , , 40404 4202 15 shallow shallow JJ 40404 4202 16 , , , 40404 4202 17 limestone limestone NN 40404 4202 18 - - HYPH 40404 4202 19 making make VBG 40404 4202 20 sea sea NN 40404 4202 21 , , , 40404 4202 22 which which WDT 40404 4202 23 received receive VBD 40404 4202 24 little little JJ 40404 4202 25 waste waste NN 40404 4202 26 from from IN 40404 4202 27 the the DT 40404 4202 28 low low JJ 40404 4202 29 lands land NNS 40404 4202 30 which which WDT 40404 4202 31 bordered border VBD 40404 4202 32 it -PRON- PRP 40404 4202 33 . . . 40404 4203 1 The the DT 40404 4203 2 probable probable JJ 40404 4203 3 distribution distribution NN 40404 4203 4 of of IN 40404 4203 5 land land NN 40404 4203 6 and and CC 40404 4203 7 sea sea NN 40404 4203 8 in in IN 40404 4203 9 eastern eastern JJ 40404 4203 10 North North NNP 40404 4203 11 America America NNP 40404 4203 12 and and CC 40404 4203 13 western western JJ 40404 4203 14 Europe Europe NNP 40404 4203 15 is be VBZ 40404 4203 16 shown show VBN 40404 4203 17 in in IN 40404 4203 18 Figure Figure NNP 40404 4203 19 287 287 CD 40404 4203 20 . . . 40404 4204 1 The the DT 40404 4204 2 fauna fauna NNS 40404 4204 3 of of IN 40404 4204 4 the the DT 40404 4204 5 interior interior JJ 40404 4204 6 region region NN 40404 4204 7 and and CC 40404 4204 8 of of IN 40404 4204 9 eastern eastern JJ 40404 4204 10 Canada Canada NNP 40404 4204 11 are be VBP 40404 4204 12 closely closely RB 40404 4204 13 allied ally VBN 40404 4204 14 with with IN 40404 4204 15 that that DT 40404 4204 16 of of IN 40404 4204 17 western western JJ 40404 4204 18 Europe Europe NNP 40404 4204 19 , , , 40404 4204 20 and and CC 40404 4204 21 several several JJ 40404 4204 22 species specie NNS 40404 4204 23 are be VBP 40404 4204 24 identical identical JJ 40404 4204 25 . . . 40404 4205 1 We -PRON- PRP 40404 4205 2 can can MD 40404 4205 3 hardly hardly RB 40404 4205 4 account account VB 40404 4205 5 for for IN 40404 4205 6 this this DT 40404 4205 7 except except IN 40404 4205 8 by by IN 40404 4205 9 a a DT 40404 4205 10 shallow shallow JJ 40404 4205 11 - - HYPH 40404 4205 12 water water NN 40404 4205 13 connection connection NN 40404 4205 14 between between IN 40404 4205 15 the the DT 40404 4205 16 two two CD 40404 4205 17 ancient ancient JJ 40404 4205 18 epicontinental epicontinental JJ 40404 4205 19 seas sea NNS 40404 4205 20 . . . 40404 4206 1 It -PRON- PRP 40404 4206 2 was be VBD 40404 4206 3 perhaps perhaps RB 40404 4206 4 along along IN 40404 4206 5 the the DT 40404 4206 6 coastal coastal JJ 40404 4206 7 shelves shelf NNS 40404 4206 8 of of IN 40404 4206 9 a a DT 40404 4206 10 northern northern JJ 40404 4206 11 land land NN 40404 4206 12 connecting connect VBG 40404 4206 13 America America NNP 40404 4206 14 and and CC 40404 4206 15 Europe Europe NNP 40404 4206 16 by by IN 40404 4206 17 way way NN 40404 4206 18 of of IN 40404 4206 19 Greenland Greenland NNP 40404 4206 20 and and CC 40404 4206 21 Iceland Iceland NNP 40404 4206 22 that that IN 40404 4206 23 the the DT 40404 4206 24 migration migration NN 40404 4206 25 took take VBD 40404 4206 26 place place NN 40404 4206 27 , , , 40404 4206 28 so so IN 40404 4206 29 that that IN 40404 4206 30 the the DT 40404 4206 31 same same JJ 40404 4206 32 species specie NNS 40404 4206 33 came come VBD 40404 4206 34 to to TO 40404 4206 35 live live VB 40404 4206 36 in in IN 40404 4206 37 Iowa Iowa NNP 40404 4206 38 and and CC 40404 4206 39 in in IN 40404 4206 40 Sweden Sweden NNP 40404 4206 41 . . . 40404 4207 1 [ [ -LRB- 40404 4207 2 Illustration illustration NN 40404 4207 3 : : : 40404 4207 4 Fig Fig NNP 40404 4207 5 . . . 40404 4208 1 287 287 CD 40404 4208 2 . . . 40404 4209 1 Hypothetical hypothetical JJ 40404 4209 2 Map Map NNP 40404 4209 3 of of IN 40404 4209 4 Parts Parts NNPS 40404 4209 5 of of IN 40404 4209 6 North North NNP 40404 4209 7 America America NNP 40404 4209 8 and and CC 40404 4209 9 Europe Europe NNP 40404 4209 10 in in IN 40404 4209 11 Silurian silurian JJ 40404 4209 12 Time Time NNP 40404 4209 13 . . . 40404 4210 1 Shaded shaded JJ 40404 4210 2 areas area NNS 40404 4210 3 , , , 40404 4210 4 probably probably RB 40404 4210 5 seas sea NNS 40404 4210 6 ; ; : 40404 4210 7 broken broken JJ 40404 4210 8 lines line NNS 40404 4210 9 , , , 40404 4210 10 approximate approximate JJ 40404 4210 11 shore shore NN 40404 4210 12 lines line NNS 40404 4210 13 ] ] -RRB- 40404 4210 14 = = NFP 40404 4210 15 The the DT 40404 4210 16 western western JJ 40404 4210 17 United United NNP 40404 4210 18 States.= States.= NNP 40404 4210 19 So so RB 40404 4210 20 little little JJ 40404 4210 21 is be VBZ 40404 4210 22 found find VBN 40404 4210 23 of of IN 40404 4210 24 the the DT 40404 4210 25 rocks rock NNS 40404 4210 26 of of IN 40404 4210 27 the the DT 40404 4210 28 system system NN 40404 4210 29 west west NN 40404 4210 30 of of IN 40404 4210 31 the the DT 40404 4210 32 Missouri Missouri NNP 40404 4210 33 River River NNP 40404 4210 34 that that IN 40404 4210 35 it -PRON- PRP 40404 4210 36 is be VBZ 40404 4210 37 quite quite RB 40404 4210 38 probable probable JJ 40404 4210 39 that that IN 40404 4210 40 the the DT 40404 4210 41 western western JJ 40404 4210 42 part part NN 40404 4210 43 of of IN 40404 4210 44 the the DT 40404 4210 45 United United NNP 40404 4210 46 States States NNP 40404 4210 47 had have VBD 40404 4210 48 for for IN 40404 4210 49 the the DT 40404 4210 50 most most JJS 40404 4210 51 part part NN 40404 4210 52 emerged emerge VBD 40404 4210 53 from from IN 40404 4210 54 the the DT 40404 4210 55 sea sea NN 40404 4210 56 at at IN 40404 4210 57 the the DT 40404 4210 58 close close NN 40404 4210 59 of of IN 40404 4210 60 the the DT 40404 4210 61 Ordovician ordovician JJ 40404 4210 62 and and CC 40404 4210 63 remained remain VBD 40404 4210 64 land land NN 40404 4210 65 during during IN 40404 4210 66 the the DT 40404 4210 67 Silurian Silurian NNP 40404 4210 68 . . . 40404 4211 1 At at IN 40404 4211 2 the the DT 40404 4211 3 same same JJ 40404 4211 4 time time NN 40404 4211 5 the the DT 40404 4211 6 western western JJ 40404 4211 7 land land NN 40404 4211 8 was be VBD 40404 4211 9 perhaps perhaps RB 40404 4211 10 connected connect VBN 40404 4211 11 with with IN 40404 4211 12 the the DT 40404 4211 13 eastern eastern JJ 40404 4211 14 land land NN 40404 4211 15 of of IN 40404 4211 16 Appalachia Appalachia NNP 40404 4211 17 across across IN 40404 4211 18 Arkansas Arkansas NNP 40404 4211 19 and and CC 40404 4211 20 Mississippi Mississippi NNP 40404 4211 21 ; ; : 40404 4211 22 for for IN 40404 4211 23 toward toward IN 40404 4211 24 the the DT 40404 4211 25 south south NN 40404 4211 26 the the DT 40404 4211 27 Silurian silurian JJ 40404 4211 28 sediments sediment NNS 40404 4211 29 indicate indicate VBP 40404 4211 30 an an DT 40404 4211 31 approach approach NN 40404 4211 32 to to IN 40404 4211 33 shore shore NN 40404 4211 34 . . . 40404 4212 1 _ _ NNP 40404 4212 2 Life Life NNP 40404 4212 3 of of IN 40404 4212 4 the the DT 40404 4212 5 Silurian silurian JJ 40404 4212 6 _ _ NNP 40404 4212 7 In in IN 40404 4212 8 this this DT 40404 4212 9 brief brief NN 40404 4212 10 sketch sketch NN 40404 4212 11 it -PRON- PRP 40404 4212 12 is be VBZ 40404 4212 13 quite quite RB 40404 4212 14 impossible impossible JJ 40404 4212 15 to to TO 40404 4212 16 relate relate VB 40404 4212 17 the the DT 40404 4212 18 many many JJ 40404 4212 19 changes change NNS 40404 4212 20 of of IN 40404 4212 21 species specie NNS 40404 4212 22 and and CC 40404 4212 23 genera genera NN 40404 4212 24 during during IN 40404 4212 25 the the DT 40404 4212 26 Silurian Silurian NNP 40404 4212 27 . . . 40404 4213 1 = = NFP 40404 4213 2 Corals.= Corals.= NNP 40404 4213 3 Some some DT 40404 4213 4 of of IN 40404 4213 5 the the DT 40404 4213 6 more more RBR 40404 4213 7 common common JJ 40404 4213 8 types type NNS 40404 4213 9 are be VBP 40404 4213 10 familiarly familiarly RB 40404 4213 11 known know VBN 40404 4213 12 as as IN 40404 4213 13 cup cup NN 40404 4213 14 corals coral NNS 40404 4213 15 , , , 40404 4213 16 honeycomb honeycomb NN 40404 4213 17 corals coral NNS 40404 4213 18 , , , 40404 4213 19 and and CC 40404 4213 20 chain chain NN 40404 4213 21 corals coral NNS 40404 4213 22 . . . 40404 4214 1 In in IN 40404 4214 2 the the DT 40404 4214 3 _ _ NNP 40404 4214 4 cup cup NN 40404 4214 5 corals coral NNS 40404 4214 6 _ _ IN 40404 4214 7 the the DT 40404 4214 8 most most RBS 40404 4214 9 important important JJ 40404 4214 10 feature feature NN 40404 4214 11 is be VBZ 40404 4214 12 the the DT 40404 4214 13 development development NN 40404 4214 14 of of IN 40404 4214 15 radiating radiate VBG 40404 4214 16 vertical vertical JJ 40404 4214 17 partitions partition NNS 40404 4214 18 , , , 40404 4214 19 or or CC 40404 4214 20 _ _ NNP 40404 4214 21 septa septa NNP 40404 4214 22 _ _ NNP 40404 4214 23 , , , 40404 4214 24 in in IN 40404 4214 25 the the DT 40404 4214 26 cell cell NN 40404 4214 27 of of IN 40404 4214 28 the the DT 40404 4214 29 polyp polyp NN 40404 4214 30 . . . 40404 4215 1 Some some DT 40404 4215 2 of of IN 40404 4215 3 the the DT 40404 4215 4 cup cup NN 40404 4215 5 corals coral NNS 40404 4215 6 grew grow VBD 40404 4215 7 in in IN 40404 4215 8 hemispherical hemispherical JJ 40404 4215 9 colonies colony NNS 40404 4215 10 ( ( -LRB- 40404 4215 11 Fig fig NN 40404 4215 12 . . . 40404 4216 1 288 288 CD 40404 4216 2 ) ) -RRB- 40404 4216 3 , , , 40404 4216 4 while while IN 40404 4216 5 many many JJ 40404 4216 6 were be VBD 40404 4216 7 separate separate JJ 40404 4216 8 individuals individual NNS 40404 4216 9 ( ( -LRB- 40404 4216 10 Fig fig NN 40404 4216 11 . . . 40404 4217 1 289 289 CD 40404 4217 2 ) ) -RRB- 40404 4217 3 , , , 40404 4217 4 building build VBG 40404 4217 5 a a DT 40404 4217 6 single single JJ 40404 4217 7 conical conical NN 40404 4217 8 , , , 40404 4217 9 or or CC 40404 4217 10 horn horn NN 40404 4217 11 - - HYPH 40404 4217 12 shaped shape VBN 40404 4217 13 cell cell NN 40404 4217 14 , , , 40404 4217 15 which which WDT 40404 4217 16 sometimes sometimes RB 40404 4217 17 reached reach VBD 40404 4217 18 the the DT 40404 4217 19 extreme extreme JJ 40404 4217 20 size size NN 40404 4217 21 of of IN 40404 4217 22 a a DT 40404 4217 23 foot foot NN 40404 4217 24 in in IN 40404 4217 25 length length NN 40404 4217 26 and and CC 40404 4217 27 two two CD 40404 4217 28 or or CC 40404 4217 29 three three CD 40404 4217 30 inches inch NNS 40404 4217 31 in in IN 40404 4217 32 diameter diameter NN 40404 4217 33 . . . 40404 4218 1 [ [ -LRB- 40404 4218 2 Illustration illustration NN 40404 4218 3 : : : 40404 4218 4 Fig Fig NNP 40404 4218 5 . . . 40404 4219 1 288 288 CD 40404 4219 2 . . . 40404 4220 1 A a DT 40404 4220 2 Compound Compound NNP 40404 4220 3 Cup Cup NNP 40404 4220 4 Coral Coral NNP 40404 4220 5 ] ] -RRB- 40404 4220 6 [ [ -LRB- 40404 4220 7 Illustration illustration NN 40404 4220 8 : : : 40404 4220 9 Fig Fig NNP 40404 4220 10 . . . 40404 4221 1 289 289 CD 40404 4221 2 . . . 40404 4222 1 A a DT 40404 4222 2 Simple Simple NNP 40404 4222 3 Cup Cup NNP 40404 4222 4 Coral coral NN 40404 4222 5 ] ] -RRB- 40404 4222 6 [ [ -LRB- 40404 4222 7 Illustration illustration NN 40404 4222 8 : : : 40404 4222 9 Fig Fig NNP 40404 4222 10 . . . 40404 4223 1 290 290 CD 40404 4223 2 . . . 40404 4224 1 Honeycomb Honeycomb NNP 40404 4224 2 Corals coral NNS 40404 4224 3 ] ] -RRB- 40404 4224 4 [ [ -LRB- 40404 4224 5 Illustration illustration NN 40404 4224 6 : : : 40404 4224 7 Fig Fig NNP 40404 4224 8 . . . 40404 4225 1 291 291 CD 40404 4225 2 . . . 40404 4226 1 A a DT 40404 4226 2 Chain Chain NNP 40404 4226 3 Coral coral NN 40404 4226 4 ] ] -RRB- 40404 4226 5 [ [ -LRB- 40404 4226 6 Illustration illustration NN 40404 4226 7 : : : 40404 4226 8 Fig Fig NNP 40404 4226 9 . . . 40404 4227 1 292 292 CD 40404 4227 2 . . . 40404 4228 1 A a DT 40404 4228 2 Syringopora Syringopora NNP 40404 4228 3 Coral coral NN 40404 4228 4 ] ] -RRB- 40404 4228 5 _ _ NNP 40404 4228 6 Honeycomb Honeycomb NNP 40404 4228 7 corals coral NNS 40404 4228 8 _ _ NNP 40404 4228 9 consist consist VBP 40404 4228 10 of of IN 40404 4228 11 masses masse NNS 40404 4228 12 of of IN 40404 4228 13 small small JJ 40404 4228 14 , , , 40404 4228 15 close close JJ 40404 4228 16 - - HYPH 40404 4228 17 set set VBN 40404 4228 18 prismatic prismatic JJ 40404 4228 19 cells cell NNS 40404 4228 20 , , , 40404 4228 21 each each DT 40404 4228 22 crossed cross VBN 40404 4228 23 by by IN 40404 4228 24 horizontal horizontal JJ 40404 4228 25 partitions partition NNS 40404 4228 26 , , , 40404 4228 27 or or CC 40404 4228 28 _ _ NNP 40404 4228 29 tabulæ tabulæ NN 40404 4228 30 _ _ NNP 40404 4228 31 , , , 40404 4228 32 while while IN 40404 4228 33 the the DT 40404 4228 34 septa septa NNP 40404 4228 35 are be VBP 40404 4228 36 rudimentary rudimentary JJ 40404 4228 37 , , , 40404 4228 38 being be VBG 40404 4228 39 represented represent VBN 40404 4228 40 by by IN 40404 4228 41 faintly faintly RB 40404 4228 42 projecting project VBG 40404 4228 43 ridges ridge NNS 40404 4228 44 or or CC 40404 4228 45 rows row NNS 40404 4228 46 of of IN 40404 4228 47 spines spine NNS 40404 4228 48 . . . 40404 4229 1 _ _ NNP 40404 4229 2 Chain Chain NNP 40404 4229 3 corals coral NNS 40404 4229 4 _ _ NNP 40404 4229 5 are be VBP 40404 4229 6 also also RB 40404 4229 7 marked mark VBN 40404 4229 8 by by IN 40404 4229 9 tabulæ tabulæ NN 40404 4229 10 . . . 40404 4230 1 Their -PRON- PRP$ 40404 4230 2 cells cell NNS 40404 4230 3 form form VBP 40404 4230 4 elliptical elliptical JJ 40404 4230 5 tubes tube NNS 40404 4230 6 , , , 40404 4230 7 touching touch VBG 40404 4230 8 each each DT 40404 4230 9 other other JJ 40404 4230 10 at at IN 40404 4230 11 the the DT 40404 4230 12 edges edge NNS 40404 4230 13 , , , 40404 4230 14 and and CC 40404 4230 15 appearing appear VBG 40404 4230 16 in in IN 40404 4230 17 cross cross NN 40404 4230 18 section section NN 40404 4230 19 like like IN 40404 4230 20 the the DT 40404 4230 21 links link NNS 40404 4230 22 of of IN 40404 4230 23 a a DT 40404 4230 24 chain chain NN 40404 4230 25 . . . 40404 4231 1 They -PRON- PRP 40404 4231 2 became become VBD 40404 4231 3 extinct extinct JJ 40404 4231 4 at at IN 40404 4231 5 the the DT 40404 4231 6 end end NN 40404 4231 7 of of IN 40404 4231 8 the the DT 40404 4231 9 Silurian Silurian NNP 40404 4231 10 . . . 40404 4232 1 The the DT 40404 4232 2 corals coral NNS 40404 4232 3 of of IN 40404 4232 4 the the DT 40404 4232 5 _ _ NNP 40404 4232 6 Syringopora Syringopora NNP 40404 4232 7 _ _ NNP 40404 4232 8 family family NN 40404 4232 9 are be VBP 40404 4232 10 similar similar JJ 40404 4232 11 in in IN 40404 4232 12 structure structure NN 40404 4232 13 to to TO 40404 4232 14 chain chain VB 40404 4232 15 corals coral NNS 40404 4232 16 , , , 40404 4232 17 but but CC 40404 4232 18 the the DT 40404 4232 19 tubular tubular JJ 40404 4232 20 columns column NNS 40404 4232 21 are be VBP 40404 4232 22 connected connect VBN 40404 4232 23 only only RB 40404 4232 24 in in IN 40404 4232 25 places place NNS 40404 4232 26 . . . 40404 4233 1 [ [ -LRB- 40404 4233 2 Illustration illustration NN 40404 4233 3 : : : 40404 4233 4 Fig Fig NNP 40404 4233 5 . . . 40404 4234 1 293 293 CD 40404 4234 2 . . . 40404 4235 1 A a DT 40404 4235 2 Blastoid Blastoid NNP 40404 4235 3 : : : 40404 4235 4 A a DT 40404 4235 5 , , , 40404 4235 6 side side JJ 40404 4235 7 view view NN 40404 4235 8 , , , 40404 4235 9 showing show VBG 40404 4235 10 portion portion NN 40404 4235 11 of of IN 40404 4235 12 the the DT 40404 4235 13 stem stem NN 40404 4235 14 ; ; : 40404 4235 15 B b NN 40404 4235 16 , , , 40404 4235 17 summit summit NN 40404 4235 18 of of IN 40404 4235 19 calyx calyx NNP 40404 4235 20 ( ( -LRB- 40404 4235 21 species specie NNS 40404 4235 22 Carboniferous Carboniferous NNP 40404 4235 23 ) ) -RRB- 40404 4235 24 ] ] -RRB- 40404 4235 25 [ [ -LRB- 40404 4235 26 Illustration illustration NN 40404 4235 27 : : : 40404 4235 28 Fig Fig NNP 40404 4235 29 . . . 40404 4236 1 294 294 CD 40404 4236 2 . . . 40404 4237 1 A a DT 40404 4237 2 Silurian silurian JJ 40404 4237 3 Scorpion scorpion NN 40404 4237 4 ] ] -RRB- 40404 4237 5 To to IN 40404 4237 6 the the DT 40404 4237 7 echinoderms echinoderm NNS 40404 4237 8 there there EX 40404 4237 9 is be VBZ 40404 4237 10 now now RB 40404 4237 11 added add VBN 40404 4237 12 the the DT 40404 4237 13 _ _ NNP 40404 4237 14 blastoid blastoid NN 40404 4237 15 _ _ NNP 40404 4237 16 ( ( -LRB- 40404 4237 17 bud bud NNP 40404 4237 18 - - HYPH 40404 4237 19 shaped shaped JJ 40404 4237 20 ) ) -RRB- 40404 4237 21 . . . 40404 4238 1 The the DT 40404 4238 2 blastoid blastoid NN 40404 4238 3 is be VBZ 40404 4238 4 stemmed stem VBN 40404 4238 5 and and CC 40404 4238 6 armless armless NN 40404 4238 7 , , , 40404 4238 8 and and CC 40404 4238 9 its -PRON- PRP$ 40404 4238 10 globular globular JJ 40404 4238 11 " " `` 40404 4238 12 head head NN 40404 4238 13 " " '' 40404 4238 14 or or CC 40404 4238 15 " " `` 40404 4238 16 calyx calyx NNP 40404 4238 17 , , , 40404 4238 18 " " '' 40404 4238 19 with with IN 40404 4238 20 its -PRON- PRP$ 40404 4238 21 five five CD 40404 4238 22 petal petal JJ 40404 4238 23 - - HYPH 40404 4238 24 like like JJ 40404 4238 25 divisions division NNS 40404 4238 26 , , , 40404 4238 27 resembles resemble VBZ 40404 4238 28 a a DT 40404 4238 29 flower flower NN 40404 4238 30 bud bud NN 40404 4238 31 . . . 40404 4239 1 The the DT 40404 4239 2 blastoids blastoid NNS 40404 4239 3 became become VBD 40404 4239 4 more more RBR 40404 4239 5 abundant abundant JJ 40404 4239 6 in in IN 40404 4239 7 the the DT 40404 4239 8 Devonian Devonian NNP 40404 4239 9 , , , 40404 4239 10 culminated culminate VBN 40404 4239 11 in in IN 40404 4239 12 the the DT 40404 4239 13 Carboniferous Carboniferous NNP 40404 4239 14 , , , 40404 4239 15 and and CC 40404 4239 16 disappeared disappear VBD 40404 4239 17 at at IN 40404 4239 18 the the DT 40404 4239 19 end end NN 40404 4239 20 of of IN 40404 4239 21 the the DT 40404 4239 22 Paleozoic Paleozoic NNP 40404 4239 23 . . . 40404 4240 1 The the DT 40404 4240 2 great great JJ 40404 4240 3 eurypterids eurypterid NNS 40404 4240 4 -- -- : 40404 4240 5 some some DT 40404 4240 6 of of IN 40404 4240 7 which which WDT 40404 4240 8 were be VBD 40404 4240 9 five five CD 40404 4240 10 or or CC 40404 4240 11 six six CD 40404 4240 12 feet foot NNS 40404 4240 13 in in IN 40404 4240 14 length length NN 40404 4240 15 -- -- : 40404 4240 16 and and CC 40404 4240 17 the the DT 40404 4240 18 cephalopods cephalopod NNS 40404 4240 19 were be VBD 40404 4240 20 still still RB 40404 4240 21 masters master NNS 40404 4240 22 of of IN 40404 4240 23 the the DT 40404 4240 24 seas sea NNS 40404 4240 25 . . . 40404 4241 1 Fishes fish NNS 40404 4241 2 were be VBD 40404 4241 3 as as RB 40404 4241 4 yet yet RB 40404 4241 5 few few JJ 40404 4241 6 and and CC 40404 4241 7 small small JJ 40404 4241 8 ; ; : 40404 4241 9 trilobites trilobite NNS 40404 4241 10 and and CC 40404 4241 11 graptolites graptolite NNS 40404 4241 12 had have VBD 40404 4241 13 now now RB 40404 4241 14 passed pass VBN 40404 4241 15 their -PRON- PRP$ 40404 4241 16 prime prime NN 40404 4241 17 and and CC 40404 4241 18 had have VBD 40404 4241 19 diminished diminish VBN 40404 4241 20 greatly greatly RB 40404 4241 21 in in IN 40404 4241 22 numbers number NNS 40404 4241 23 . . . 40404 4242 1 Scorpions scorpion NNS 40404 4242 2 are be VBP 40404 4242 3 found find VBN 40404 4242 4 in in IN 40404 4242 5 this this DT 40404 4242 6 period period NN 40404 4242 7 both both DT 40404 4242 8 in in IN 40404 4242 9 Europe Europe NNP 40404 4242 10 and and CC 40404 4242 11 in in IN 40404 4242 12 America America NNP 40404 4242 13 . . . 40404 4243 1 The the DT 40404 4243 2 limestone limestone NN 40404 4243 3 - - HYPH 40404 4243 4 making make VBG 40404 4243 5 seas sea NNS 40404 4243 6 of of IN 40404 4243 7 the the DT 40404 4243 8 Silurian silurian JJ 40404 4243 9 swarmed swarm VBD 40404 4243 10 with with IN 40404 4243 11 corals coral NNS 40404 4243 12 , , , 40404 4243 13 crinoids crinoid NNS 40404 4243 14 , , , 40404 4243 15 and and CC 40404 4243 16 brachiopods brachiopod NNS 40404 4243 17 . . . 40404 4244 1 With with IN 40404 4244 2 the the DT 40404 4244 3 end end NN 40404 4244 4 of of IN 40404 4244 5 the the DT 40404 4244 6 Silurian silurian JJ 40404 4244 7 period period NN 40404 4244 8 the the DT 40404 4244 9 _ _ NNP 40404 4244 10 Age Age NNP 40404 4244 11 of of IN 40404 4244 12 Invertebrates Invertebrates NNPS 40404 4244 13 _ _ NNP 40404 4244 14 comes come VBZ 40404 4244 15 to to IN 40404 4244 16 a a DT 40404 4244 17 close close JJ 40404 4244 18 , , , 40404 4244 19 giving give VBG 40404 4244 20 place place NN 40404 4244 21 to to IN 40404 4244 22 the the DT 40404 4244 23 Devonian Devonian NNP 40404 4244 24 , , , 40404 4244 25 the the DT 40404 4244 26 _ _ NNP 40404 4244 27 Age Age NNP 40404 4244 28 of of IN 40404 4244 29 Fishes Fishes NNP 40404 4244 30 _ _ NNP 40404 4244 31 . . . 40404 4245 1 [ [ -LRB- 40404 4245 2 Illustration illustration NN 40404 4245 3 : : : 40404 4245 4 Fig Fig NNP 40404 4245 5 . . . 40404 4246 1 295 295 CD 40404 4246 2 . . . 40404 4247 1 Block Block NNP 40404 4247 2 of of IN 40404 4247 3 Limestone Limestone NNP 40404 4247 4 showing show VBG 40404 4247 5 Interior Interior NNP 40404 4247 6 Casts Casts NNPS 40404 4247 7 of of IN 40404 4247 8 _ _ NNP 40404 4247 9 Pentamerus Pentamerus NNP 40404 4247 10 oblongus oblongus NN 40404 4247 11 _ _ NNP 40404 4247 12 , , , 40404 4247 13 a a DT 40404 4247 14 Common common JJ 40404 4247 15 Silurian Silurian NNP 40404 4247 16 Brachiopod Brachiopod NNP 40404 4247 17 ] ] -RRB- 40404 4247 18 CHAPTER chapter NN 40404 4247 19 XVIII xviii VBP 40404 4247 20 THE the DT 40404 4247 21 DEVONIAN devonian NN 40404 4247 22 In in IN 40404 4247 23 America America NNP 40404 4247 24 the the DT 40404 4247 25 Silurian Silurian NNP 40404 4247 26 is be VBZ 40404 4247 27 not not RB 40404 4247 28 separated separate VBN 40404 4247 29 from from IN 40404 4247 30 the the DT 40404 4247 31 Devonian Devonian NNP 40404 4247 32 by by IN 40404 4247 33 any any DT 40404 4247 34 mountain mountain NN 40404 4247 35 - - HYPH 40404 4247 36 making make VBG 40404 4247 37 deformation deformation NN 40404 4247 38 or or CC 40404 4247 39 continental continental JJ 40404 4247 40 uplift uplift NN 40404 4247 41 . . . 40404 4248 1 The the DT 40404 4248 2 one one CD 40404 4248 3 period period NN 40404 4248 4 passed pass VBD 40404 4248 5 quietly quietly RB 40404 4248 6 into into IN 40404 4248 7 the the DT 40404 4248 8 other other JJ 40404 4248 9 . . . 40404 4249 1 Their -PRON- PRP$ 40404 4249 2 conformable conformable JJ 40404 4249 3 systems system NNS 40404 4249 4 are be VBP 40404 4249 5 so so RB 40404 4249 6 closely closely RB 40404 4249 7 related related JJ 40404 4249 8 , , , 40404 4249 9 and and CC 40404 4249 10 the the DT 40404 4249 11 change change NN 40404 4249 12 in in IN 40404 4249 13 their -PRON- PRP$ 40404 4249 14 faunas fauna NNS 40404 4249 15 is be VBZ 40404 4249 16 so so RB 40404 4249 17 gradual gradual JJ 40404 4249 18 , , , 40404 4249 19 that that IN 40404 4249 20 geologists geologist NNS 40404 4249 21 are be VBP 40404 4249 22 not not RB 40404 4249 23 agreed agree VBN 40404 4249 24 as as IN 40404 4249 25 to to IN 40404 4249 26 the the DT 40404 4249 27 precise precise JJ 40404 4249 28 horizon horizon NN 40404 4249 29 which which WDT 40404 4249 30 divides divide VBZ 40404 4249 31 them -PRON- PRP 40404 4249 32 . . . 40404 4250 1 = = NFP 40404 4250 2 Subdivisions subdivision NNS 40404 4250 3 and and CC 40404 4250 4 physical physical JJ 40404 4250 5 geography.= geography.= NNS 40404 4250 6 The the DT 40404 4250 7 Devonian Devonian NNP 40404 4250 8 is be VBZ 40404 4250 9 represented represent VBN 40404 4250 10 in in IN 40404 4250 11 New New NNP 40404 4250 12 York York NNP 40404 4250 13 and and CC 40404 4250 14 southward southward NNP 40404 4250 15 by by IN 40404 4250 16 the the DT 40404 4250 17 following follow VBG 40404 4250 18 five five CD 40404 4250 19 series series NN 40404 4250 20 . . . 40404 4251 1 We -PRON- PRP 40404 4251 2 add add VBP 40404 4251 3 the the DT 40404 4251 4 rocks rock NNS 40404 4251 5 of of IN 40404 4251 6 which which WDT 40404 4251 7 they -PRON- PRP 40404 4251 8 are be VBP 40404 4251 9 chiefly chiefly RB 40404 4251 10 composed compose VBN 40404 4251 11 . . . 40404 4252 1 5 5 CD 40404 4252 2 Chemung Chemung NNP 40404 4252 3 ..... ..... . 40404 4252 4 sandstones sandstone NNS 40404 4252 5 and and CC 40404 4252 6 sandy sandy NNP 40404 4252 7 shales shales NNP 40404 4252 8 4 4 CD 40404 4252 9 Hamilton Hamilton NNP 40404 4252 10 ..... ..... . 40404 4252 11 shales shale NNS 40404 4252 12 and and CC 40404 4252 13 sandstones sandstone VBZ 40404 4252 14 3 3 CD 40404 4252 15 Corniferous Corniferous NNP 40404 4252 16 ..... ..... NFP 40404 4252 17 limestones limestone VBZ 40404 4252 18 2 2 CD 40404 4252 19 Oriskany Oriskany NNP 40404 4252 20 ..... ..... NFP 40404 4252 21 sandstones sandstone VBZ 40404 4252 22 1 1 CD 40404 4252 23 Helderberg Helderberg NNP 40404 4252 24 ..... ..... . 40404 4252 25 limestones limestone VBZ 40404 4252 26 The the DT 40404 4252 27 Helderberg Helderberg NNP 40404 4252 28 is be VBZ 40404 4252 29 a a DT 40404 4252 30 transition transition NN 40404 4252 31 epoch epoch NN 40404 4252 32 referred refer VBN 40404 4252 33 by by IN 40404 4252 34 some some DT 40404 4252 35 geologists geologist NNS 40404 4252 36 to to IN 40404 4252 37 the the DT 40404 4252 38 Silurian Silurian NNP 40404 4252 39 . . . 40404 4253 1 The the DT 40404 4253 2 thin thin JJ 40404 4253 3 sandstones sandstone NNS 40404 4253 4 of of IN 40404 4253 5 the the DT 40404 4253 6 Oriskany Oriskany NNP 40404 4253 7 mark mark NN 40404 4253 8 an an DT 40404 4253 9 epoch epoch NN 40404 4253 10 when when WRB 40404 4253 11 waves wave NNS 40404 4253 12 worked work VBD 40404 4253 13 over over IN 40404 4253 14 the the DT 40404 4253 15 deposits deposit NNS 40404 4253 16 of of IN 40404 4253 17 former former JJ 40404 4253 18 coastal coastal JJ 40404 4253 19 plains plain NNS 40404 4253 20 . . . 40404 4254 1 The the DT 40404 4254 2 limestones limestone NNS 40404 4254 3 of of IN 40404 4254 4 the the DT 40404 4254 5 Corniferous corniferous JJ 40404 4254 6 testify testify NN 40404 4254 7 to to IN 40404 4254 8 a a DT 40404 4254 9 warm warm JJ 40404 4254 10 and and CC 40404 4254 11 clear clear JJ 40404 4254 12 wide wide JJ 40404 4254 13 sea sea NN 40404 4254 14 which which WDT 40404 4254 15 extended extend VBD 40404 4254 16 from from IN 40404 4254 17 the the DT 40404 4254 18 Hudson Hudson NNP 40404 4254 19 to to TO 40404 4254 20 beyond beyond IN 40404 4254 21 the the DT 40404 4254 22 Mississippi Mississippi NNP 40404 4254 23 . . . 40404 4255 1 Corals coral NNS 40404 4255 2 throve throve VBP 40404 4255 3 luxuriantly luxuriantly RB 40404 4255 4 , , , 40404 4255 5 and and CC 40404 4255 6 their -PRON- PRP$ 40404 4255 7 remains remain NNS 40404 4255 8 , , , 40404 4255 9 with with IN 40404 4255 10 those those DT 40404 4255 11 of of IN 40404 4255 12 mollusks mollusk NNS 40404 4255 13 and and CC 40404 4255 14 other other JJ 40404 4255 15 lime lime NN 40404 4255 16 - - HYPH 40404 4255 17 secreting secrete VBG 40404 4255 18 animals animal NNS 40404 4255 19 , , , 40404 4255 20 built build VBN 40404 4255 21 up up RP 40404 4255 22 great great JJ 40404 4255 23 beds bed NNS 40404 4255 24 of of IN 40404 4255 25 limestone limestone NN 40404 4255 26 . . . 40404 4256 1 The the DT 40404 4256 2 bordering border VBG 40404 4256 3 continents continent NNS 40404 4256 4 , , , 40404 4256 5 as as IN 40404 4256 6 during during IN 40404 4256 7 the the DT 40404 4256 8 later later JJ 40404 4256 9 Silurian Silurian NNP 40404 4256 10 , , , 40404 4256 11 must must MD 40404 4256 12 now now RB 40404 4256 13 have have VB 40404 4256 14 been be VBN 40404 4256 15 monotonous monotonous JJ 40404 4256 16 lowlands lowland NNS 40404 4256 17 which which WDT 40404 4256 18 sent send VBD 40404 4256 19 down down RP 40404 4256 20 little little JJ 40404 4256 21 of of IN 40404 4256 22 even even RB 40404 4256 23 the the DT 40404 4256 24 finest fine JJS 40404 4256 25 waste waste NN 40404 4256 26 to to IN 40404 4256 27 the the DT 40404 4256 28 sea sea NN 40404 4256 29 . . . 40404 4257 1 In in IN 40404 4257 2 the the DT 40404 4257 3 Hamilton Hamilton NNP 40404 4257 4 the the DT 40404 4257 5 clear clear JJ 40404 4257 6 seas sea NNS 40404 4257 7 of of IN 40404 4257 8 the the DT 40404 4257 9 previous previous JJ 40404 4257 10 epoch epoch NN 40404 4257 11 became become VBD 40404 4257 12 clouded clouded JJ 40404 4257 13 with with IN 40404 4257 14 mud mud NN 40404 4257 15 . . . 40404 4258 1 The the DT 40404 4258 2 immense immense JJ 40404 4258 3 deposits deposit NNS 40404 4258 4 of of IN 40404 4258 5 coarse coarse JJ 40404 4258 6 sandstones sandstone NNS 40404 4258 7 and and CC 40404 4258 8 sandy sandy JJ 40404 4258 9 shales shale NNS 40404 4258 10 of of IN 40404 4258 11 the the DT 40404 4258 12 Chemung Chemung NNP 40404 4258 13 , , , 40404 4258 14 which which WDT 40404 4258 15 are be VBP 40404 4258 16 found find VBN 40404 4258 17 off off RP 40404 4258 18 what what WP 40404 4258 19 was be VBD 40404 4258 20 at at IN 40404 4258 21 the the DT 40404 4258 22 time time NN 40404 4258 23 the the DT 40404 4258 24 west west JJ 40404 4258 25 coast coast NN 40404 4258 26 of of IN 40404 4258 27 Appalachia Appalachia NNP 40404 4258 28 , , , 40404 4258 29 prove prove VB 40404 4258 30 an an DT 40404 4258 31 uplift uplift NN 40404 4258 32 of of IN 40404 4258 33 that that DT 40404 4258 34 ancient ancient JJ 40404 4258 35 continent continent NN 40404 4258 36 . . . 40404 4259 1 The the DT 40404 4259 2 Chemung Chemung NNP 40404 4259 3 series series NN 40404 4259 4 extends extend VBZ 40404 4259 5 from from IN 40404 4259 6 the the DT 40404 4259 7 Catskill Catskill NNP 40404 4259 8 Mountains Mountains NNPS 40404 4259 9 to to TO 40404 4259 10 northeastern northeastern VB 40404 4259 11 Ohio Ohio NNP 40404 4259 12 and and CC 40404 4259 13 south south NN 40404 4259 14 to to IN 40404 4259 15 northeastern northeastern JJ 40404 4259 16 Tennessee Tennessee NNP 40404 4259 17 , , , 40404 4259 18 covering cover VBG 40404 4259 19 an an DT 40404 4259 20 area area NN 40404 4259 21 of of IN 40404 4259 22 not not RB 40404 4259 23 less less JJR 40404 4259 24 than than IN 40404 4259 25 a a DT 40404 4259 26 hundred hundred CD 40404 4259 27 thousand thousand CD 40404 4259 28 square square JJ 40404 4259 29 miles mile NNS 40404 4259 30 . . . 40404 4260 1 In in IN 40404 4260 2 eastern eastern JJ 40404 4260 3 New New NNP 40404 4260 4 York York NNP 40404 4260 5 it -PRON- PRP 40404 4260 6 attains attain VBZ 40404 4260 7 three three CD 40404 4260 8 thousand thousand CD 40404 4260 9 feet foot NNS 40404 4260 10 in in IN 40404 4260 11 thickness thickness NN 40404 4260 12 ; ; : 40404 4260 13 in in IN 40404 4260 14 Pennsylvania Pennsylvania NNP 40404 4260 15 it -PRON- PRP 40404 4260 16 reaches reach VBZ 40404 4260 17 the the DT 40404 4260 18 enormous enormous JJ 40404 4260 19 thickness thickness NN 40404 4260 20 of of IN 40404 4260 21 two two CD 40404 4260 22 miles mile NNS 40404 4260 23 ; ; : 40404 4260 24 but but CC 40404 4260 25 it -PRON- PRP 40404 4260 26 rapidly rapidly RB 40404 4260 27 thins thin VBZ 40404 4260 28 to to IN 40404 4260 29 the the DT 40404 4260 30 west west NN 40404 4260 31 . . . 40404 4261 1 Everywhere everywhere RB 40404 4261 2 the the DT 40404 4261 3 Chemung Chemung NNP 40404 4261 4 is be VBZ 40404 4261 5 made make VBN 40404 4261 6 of of IN 40404 4261 7 thin thin JJ 40404 4261 8 beds bed NNS 40404 4261 9 of of IN 40404 4261 10 rapidly rapidly RB 40404 4261 11 alternating alternate VBG 40404 4261 12 coarse coarse JJ 40404 4261 13 and and CC 40404 4261 14 fine fine JJ 40404 4261 15 sands sand NNS 40404 4261 16 and and CC 40404 4261 17 clays clay NNS 40404 4261 18 , , , 40404 4261 19 with with IN 40404 4261 20 an an DT 40404 4261 21 occasional occasional JJ 40404 4261 22 pebble pebble NN 40404 4261 23 layer layer NN 40404 4261 24 , , , 40404 4261 25 and and CC 40404 4261 26 hence hence RB 40404 4261 27 is be VBZ 40404 4261 28 a a DT 40404 4261 29 shallow shallow JJ 40404 4261 30 - - HYPH 40404 4261 31 water water NN 40404 4261 32 deposit deposit NN 40404 4261 33 . . . 40404 4262 1 The the DT 40404 4262 2 fine fine JJ 40404 4262 3 material material NN 40404 4262 4 has have VBZ 40404 4262 5 not not RB 40404 4262 6 been be VBN 40404 4262 7 thoroughly thoroughly RB 40404 4262 8 winnowed winnow VBN 40404 4262 9 from from IN 40404 4262 10 the the DT 40404 4262 11 coarse coarse NN 40404 4262 12 by by IN 40404 4262 13 the the DT 40404 4262 14 long long JJ 40404 4262 15 action action NN 40404 4262 16 of of IN 40404 4262 17 strong strong JJ 40404 4262 18 waves wave NNS 40404 4262 19 and and CC 40404 4262 20 tides tide NNS 40404 4262 21 . . . 40404 4263 1 The the DT 40404 4263 2 sands sand NNS 40404 4263 3 and and CC 40404 4263 4 clays clay NNS 40404 4263 5 have have VBP 40404 4263 6 undergone undergo VBN 40404 4263 7 little little RB 40404 4263 8 more more RBR 40404 4263 9 sorting sorting JJ 40404 4263 10 than than IN 40404 4263 11 is be VBZ 40404 4263 12 done do VBN 40404 4263 13 by by IN 40404 4263 14 rivers river NNS 40404 4263 15 . . . 40404 4264 1 We -PRON- PRP 40404 4264 2 must must MD 40404 4264 3 regard regard VB 40404 4264 4 the the DT 40404 4264 5 Chemung Chemung NNP 40404 4264 6 sandstones sandstone VBZ 40404 4264 7 as as IN 40404 4264 8 deposits deposit NNS 40404 4264 9 made make VBN 40404 4264 10 at at IN 40404 4264 11 the the DT 40404 4264 12 mouths mouth NNS 40404 4264 13 of of IN 40404 4264 14 swift swift NN 40404 4264 15 , , , 40404 4264 16 turbid turbid VB 40404 4264 17 rivers river NNS 40404 4264 18 in in IN 40404 4264 19 such such JJ 40404 4264 20 great great JJ 40404 4264 21 amount amount NN 40404 4264 22 that that WDT 40404 4264 23 they -PRON- PRP 40404 4264 24 could could MD 40404 4264 25 be be VB 40404 4264 26 little little RB 40404 4264 27 sorted sort VBN 40404 4264 28 and and CC 40404 4264 29 distributed distribute VBN 40404 4264 30 by by IN 40404 4264 31 waves wave NNS 40404 4264 32 . . . 40404 4265 1 Over over IN 40404 4265 2 considerable considerable JJ 40404 4265 3 areas area NNS 40404 4265 4 the the DT 40404 4265 5 Chemung Chemung NNP 40404 4265 6 sandstones sandstone VBZ 40404 4265 7 bear bear VBP 40404 4265 8 little little JJ 40404 4265 9 or or CC 40404 4265 10 no no DT 40404 4265 11 trace trace NN 40404 4265 12 of of IN 40404 4265 13 the the DT 40404 4265 14 action action NN 40404 4265 15 of of IN 40404 4265 16 the the DT 40404 4265 17 sea sea NN 40404 4265 18 . . . 40404 4266 1 The the DT 40404 4266 2 Catskill Catskill NNP 40404 4266 3 Mountains Mountains NNPS 40404 4266 4 , , , 40404 4266 5 for for IN 40404 4266 6 example example NN 40404 4266 7 , , , 40404 4266 8 have have VBP 40404 4266 9 as as IN 40404 4266 10 their -PRON- PRP$ 40404 4266 11 summit summit NN 40404 4266 12 layers layer VBZ 40404 4266 13 some some DT 40404 4266 14 three three CD 40404 4266 15 thousand thousand CD 40404 4266 16 feet foot NNS 40404 4266 17 of of IN 40404 4266 18 coarse coarse JJ 40404 4266 19 red red JJ 40404 4266 20 sandstones sandstone NNS 40404 4266 21 of of IN 40404 4266 22 this this DT 40404 4266 23 series series NN 40404 4266 24 , , , 40404 4266 25 whose whose WP$ 40404 4266 26 structure structure NN 40404 4266 27 is be VBZ 40404 4266 28 that that DT 40404 4266 29 of of IN 40404 4266 30 river river NN 40404 4266 31 deposits deposit NNS 40404 4266 32 , , , 40404 4266 33 and and CC 40404 4266 34 whose whose WP$ 40404 4266 35 few few JJ 40404 4266 36 fossils fossil NNS 40404 4266 37 are be VBP 40404 4266 38 chiefly chiefly RB 40404 4266 39 of of IN 40404 4266 40 fresh fresh JJ 40404 4266 41 - - HYPH 40404 4266 42 water water NN 40404 4266 43 types type NNS 40404 4266 44 . . . 40404 4267 1 The the DT 40404 4267 2 Chemung Chemung NNP 40404 4267 3 is be VBZ 40404 4267 4 therefore therefore RB 40404 4267 5 composed compose VBN 40404 4267 6 of of IN 40404 4267 7 delta delta NN 40404 4267 8 deposits deposit NNS 40404 4267 9 , , , 40404 4267 10 more more RBR 40404 4267 11 or or CC 40404 4267 12 less less RBR 40404 4267 13 worked work VBN 40404 4267 14 over over RP 40404 4267 15 by by IN 40404 4267 16 the the DT 40404 4267 17 sea sea NN 40404 4267 18 . . . 40404 4268 1 The the DT 40404 4268 2 bulk bulk NN 40404 4268 3 of of IN 40404 4268 4 the the DT 40404 4268 5 Chemung Chemung NNP 40404 4268 6 equals equal VBZ 40404 4268 7 that that DT 40404 4268 8 of of IN 40404 4268 9 the the DT 40404 4268 10 Sierra Sierra NNP 40404 4268 11 Nevada Nevada NNP 40404 4268 12 Mountains Mountains NNPS 40404 4268 13 . . . 40404 4269 1 To to TO 40404 4269 2 furnish furnish VB 40404 4269 3 this this DT 40404 4269 4 immense immense JJ 40404 4269 5 volume volume NN 40404 4269 6 of of IN 40404 4269 7 sediment sediment NN 40404 4269 8 a a DT 40404 4269 9 great great JJ 40404 4269 10 mountain mountain NN 40404 4269 11 range range NN 40404 4269 12 , , , 40404 4269 13 or or CC 40404 4269 14 highland highland NNP 40404 4269 15 , , , 40404 4269 16 must must MD 40404 4269 17 have have VB 40404 4269 18 been be VBN 40404 4269 19 upheaved upheave VBN 40404 4269 20 where where WRB 40404 4269 21 the the DT 40404 4269 22 Appalachian appalachian JJ 40404 4269 23 lowland lowland NN 40404 4269 24 long long RB 40404 4269 25 had have VBD 40404 4269 26 been be VBN 40404 4269 27 . . . 40404 4270 1 To to IN 40404 4270 2 what what WP 40404 4270 3 height height NN 40404 4270 4 the the DT 40404 4270 5 Devonian devonian JJ 40404 4270 6 mountains mountain NNS 40404 4270 7 of of IN 40404 4270 8 Appalachia Appalachia NNP 40404 4270 9 attained attain VBN 40404 4270 10 can can MD 40404 4270 11 not not RB 40404 4270 12 be be VB 40404 4270 13 told tell VBN 40404 4270 14 from from IN 40404 4270 15 the the DT 40404 4270 16 volume volume NN 40404 4270 17 of of IN 40404 4270 18 the the DT 40404 4270 19 sediments sediment NNS 40404 4270 20 wasted waste VBN 40404 4270 21 from from IN 40404 4270 22 them -PRON- PRP 40404 4270 23 , , , 40404 4270 24 for for IN 40404 4270 25 they -PRON- PRP 40404 4270 26 may may MD 40404 4270 27 have have VB 40404 4270 28 risen rise VBN 40404 4270 29 but but CC 40404 4270 30 little little JJ 40404 4270 31 faster fast RBR 40404 4270 32 than than IN 40404 4270 33 they -PRON- PRP 40404 4270 34 were be VBD 40404 4270 35 worn wear VBN 40404 4270 36 down down RP 40404 4270 37 by by IN 40404 4270 38 denudation denudation NN 40404 4270 39 . . . 40404 4271 1 We -PRON- PRP 40404 4271 2 may may MD 40404 4271 3 infer infer VB 40404 4271 4 from from IN 40404 4271 5 the the DT 40404 4271 6 character character NN 40404 4271 7 of of IN 40404 4271 8 the the DT 40404 4271 9 waste waste NN 40404 4271 10 which which WDT 40404 4271 11 they -PRON- PRP 40404 4271 12 furnished furnish VBD 40404 4271 13 to to IN 40404 4271 14 the the DT 40404 4271 15 Chemung Chemung NNP 40404 4271 16 shores shore VBZ 40404 4271 17 that that IN 40404 4271 18 they -PRON- PRP 40404 4271 19 did do VBD 40404 4271 20 not not RB 40404 4271 21 reach reach VB 40404 4271 22 an an DT 40404 4271 23 Alpine Alpine NNP 40404 4271 24 height height NN 40404 4271 25 . . . 40404 4272 1 The the DT 40404 4272 2 grains grain NNS 40404 4272 3 of of IN 40404 4272 4 the the DT 40404 4272 5 Chemung Chemung NNP 40404 4272 6 sandstones sandstone NNS 40404 4272 7 are be VBP 40404 4272 8 not not RB 40404 4272 9 those those DT 40404 4272 10 which which WDT 40404 4272 11 would would MD 40404 4272 12 result result VB 40404 4272 13 from from IN 40404 4272 14 mechanical mechanical JJ 40404 4272 15 disintegration disintegration NN 40404 4272 16 , , , 40404 4272 17 as as IN 40404 4272 18 by by IN 40404 4272 19 frost frost NN 40404 4272 20 on on IN 40404 4272 21 high high JJ 40404 4272 22 mountain mountain NN 40404 4272 23 peaks peak NNS 40404 4272 24 , , , 40404 4272 25 but but CC 40404 4272 26 are be VBP 40404 4272 27 rather rather RB 40404 4272 28 those those DT 40404 4272 29 which which WDT 40404 4272 30 would would MD 40404 4272 31 be be VB 40404 4272 32 left leave VBN 40404 4272 33 from from IN 40404 4272 34 the the DT 40404 4272 35 long long JJ 40404 4272 36 chemical chemical NN 40404 4272 37 decay decay NN 40404 4272 38 of of IN 40404 4272 39 siliceous siliceous JJ 40404 4272 40 crystalline crystalline NN 40404 4272 41 rocks rock NNS 40404 4272 42 ; ; : 40404 4272 43 for for IN 40404 4272 44 the the DT 40404 4272 45 more more RBR 40404 4272 46 soluble soluble JJ 40404 4272 47 minerals mineral NNS 40404 4272 48 are be VBP 40404 4272 49 largely largely RB 40404 4272 50 wanting want VBG 40404 4272 51 . . . 40404 4273 1 The the DT 40404 4273 2 red red JJ 40404 4273 3 color color NN 40404 4273 4 of of IN 40404 4273 5 much much JJ 40404 4273 6 of of IN 40404 4273 7 the the DT 40404 4273 8 deposits deposit NNS 40404 4273 9 points point NNS 40404 4273 10 to to IN 40404 4273 11 the the DT 40404 4273 12 same same JJ 40404 4273 13 conclusion conclusion NN 40404 4273 14 . . . 40404 4274 1 Red red JJ 40404 4274 2 residual residual JJ 40404 4274 3 clays clay NNS 40404 4274 4 accumulated accumulate VBN 40404 4274 5 on on IN 40404 4274 6 the the DT 40404 4274 7 mountain mountain NN 40404 4274 8 sides side NNS 40404 4274 9 and and CC 40404 4274 10 upland upland VB 40404 4274 11 summits summit NNS 40404 4274 12 , , , 40404 4274 13 and and CC 40404 4274 14 were be VBD 40404 4274 15 washed wash VBN 40404 4274 16 as as IN 40404 4274 17 ocherous ocherous JJ 40404 4274 18 silt silt NN 40404 4274 19 to to TO 40404 4274 20 mingle mingle VB 40404 4274 21 with with IN 40404 4274 22 the the DT 40404 4274 23 delta delta NN 40404 4274 24 sands sand VBZ 40404 4274 25 . . . 40404 4275 1 The the DT 40404 4275 2 iron iron NN 40404 4275 3 - - HYPH 40404 4275 4 bearing bear VBG 40404 4275 5 igneous igneous JJ 40404 4275 6 rocks rock NNS 40404 4275 7 of of IN 40404 4275 8 the the DT 40404 4275 9 oldland oldland NN 40404 4275 10 also also RB 40404 4275 11 contributed contribute VBD 40404 4275 12 by by IN 40404 4275 13 their -PRON- PRP$ 40404 4275 14 decay decay NN 40404 4275 15 iron iron NN 40404 4275 16 in in IN 40404 4275 17 solution solution NN 40404 4275 18 to to IN 40404 4275 19 the the DT 40404 4275 20 rivers river NNS 40404 4275 21 , , , 40404 4275 22 to to TO 40404 4275 23 be be VB 40404 4275 24 deposited deposit VBN 40404 4275 25 in in IN 40404 4275 26 films film NNS 40404 4275 27 of of IN 40404 4275 28 iron iron NN 40404 4275 29 oxide oxide NN 40404 4275 30 about about IN 40404 4275 31 the the DT 40404 4275 32 quartz quartz NN 40404 4275 33 grains grain NNS 40404 4275 34 of of IN 40404 4275 35 the the DT 40404 4275 36 Chemung Chemung NNP 40404 4275 37 sandstones sandstone NNS 40404 4275 38 , , , 40404 4275 39 giving give VBG 40404 4275 40 them -PRON- PRP 40404 4275 41 their -PRON- PRP$ 40404 4275 42 reddish reddish JJ 40404 4275 43 tints tint NNS 40404 4275 44 . . . 40404 4276 1 Life life NN 40404 4276 2 of of IN 40404 4276 3 the the DT 40404 4276 4 Devonian Devonian NNP 40404 4276 5 = = SYM 40404 4276 6 Plants.= Plants.= NNP 40404 4276 7 The the DT 40404 4276 8 lands land NNS 40404 4276 9 were be VBD 40404 4276 10 probably probably RB 40404 4276 11 clad clothe VBN 40404 4276 12 with with IN 40404 4276 13 verdure verdure NN 40404 4276 14 during during IN 40404 4276 15 Silurian silurian JJ 40404 4276 16 times time NNS 40404 4276 17 , , , 40404 4276 18 if if IN 40404 4276 19 not not RB 40404 4276 20 still still RB 40404 4276 21 earlier early RBR 40404 4276 22 ; ; : 40404 4276 23 for for IN 40404 4276 24 some some DT 40404 4276 25 rare rare JJ 40404 4276 26 remains remain NNS 40404 4276 27 of of IN 40404 4276 28 ferns fern NNS 40404 4276 29 and and CC 40404 4276 30 other other JJ 40404 4276 31 lowly lowly JJ 40404 4276 32 types type NNS 40404 4276 33 of of IN 40404 4276 34 vegetation vegetation NN 40404 4276 35 have have VBP 40404 4276 36 been be VBN 40404 4276 37 found find VBN 40404 4276 38 in in IN 40404 4276 39 the the DT 40404 4276 40 strata strata NN 40404 4276 41 of of IN 40404 4276 42 that that DT 40404 4276 43 system system NN 40404 4276 44 . . . 40404 4277 1 But but CC 40404 4277 2 it -PRON- PRP 40404 4277 3 is be VBZ 40404 4277 4 in in IN 40404 4277 5 the the DT 40404 4277 6 Devonian Devonian NNP 40404 4277 7 that that WDT 40404 4277 8 we -PRON- PRP 40404 4277 9 discover discover VBP 40404 4277 10 for for IN 40404 4277 11 the the DT 40404 4277 12 first first JJ 40404 4277 13 time time NN 40404 4277 14 the the DT 40404 4277 15 remains remain NNS 40404 4277 16 of of IN 40404 4277 17 extensive extensive JJ 40404 4277 18 and and CC 40404 4277 19 luxuriant luxuriant JJ 40404 4277 20 forests forest NNS 40404 4277 21 . . . 40404 4278 1 This this DT 40404 4278 2 rich rich JJ 40404 4278 3 flora flora NNS 40404 4278 4 reached reach VBD 40404 4278 5 its -PRON- PRP$ 40404 4278 6 climax climax NN 40404 4278 7 in in IN 40404 4278 8 the the DT 40404 4278 9 Carboniferous Carboniferous NNP 40404 4278 10 , , , 40404 4278 11 and and CC 40404 4278 12 it -PRON- PRP 40404 4278 13 will will MD 40404 4278 14 be be VB 40404 4278 15 more more RBR 40404 4278 16 convenient convenient JJ 40404 4278 17 to to TO 40404 4278 18 describe describe VB 40404 4278 19 its -PRON- PRP$ 40404 4278 20 varied varied JJ 40404 4278 21 types type NNS 40404 4278 22 in in IN 40404 4278 23 the the DT 40404 4278 24 next next JJ 40404 4278 25 chapter chapter NN 40404 4278 26 . . . 40404 4279 1 = = NFP 40404 4279 2 Rhizocarps.= Rhizocarps.= NNP 40404 4279 3 In in IN 40404 4279 4 the the DT 40404 4279 5 shales shale NNS 40404 4279 6 of of IN 40404 4279 7 the the DT 40404 4279 8 Devonian Devonian NNP 40404 4279 9 are be VBP 40404 4279 10 found find VBN 40404 4279 11 microscopic microscopic JJ 40404 4279 12 spores spore NNS 40404 4279 13 of of IN 40404 4279 14 rhizocarps rhizocarp NNS 40404 4279 15 in in IN 40404 4279 16 such such JJ 40404 4279 17 countless countless JJ 40404 4279 18 numbers number NNS 40404 4279 19 that that WDT 40404 4279 20 their -PRON- PRP$ 40404 4279 21 weight weight NN 40404 4279 22 must must MD 40404 4279 23 be be VB 40404 4279 24 reckoned reckon VBN 40404 4279 25 in in IN 40404 4279 26 hundreds hundred NNS 40404 4279 27 of of IN 40404 4279 28 millions million NNS 40404 4279 29 of of IN 40404 4279 30 tons ton NNS 40404 4279 31 . . . 40404 4280 1 It -PRON- PRP 40404 4280 2 would would MD 40404 4280 3 seem seem VB 40404 4280 4 that that IN 40404 4280 5 these these DT 40404 4280 6 aquatic aquatic JJ 40404 4280 7 plants plant NNS 40404 4280 8 culminated culminate VBN 40404 4280 9 in in IN 40404 4280 10 this this DT 40404 4280 11 period period NN 40404 4280 12 , , , 40404 4280 13 and and CC 40404 4280 14 in in IN 40404 4280 15 widely widely RB 40404 4280 16 distant distant JJ 40404 4280 17 portions portion NNS 40404 4280 18 of of IN 40404 4280 19 the the DT 40404 4280 20 earth earth NN 40404 4280 21 swampy swampy VBZ 40404 4280 22 flats flat NNS 40404 4280 23 and and CC 40404 4280 24 shallow shallow JJ 40404 4280 25 lagoons lagoon NNS 40404 4280 26 were be VBD 40404 4280 27 filled fill VBN 40404 4280 28 with with IN 40404 4280 29 vegetation vegetation NN 40404 4280 30 of of IN 40404 4280 31 this this DT 40404 4280 32 humble humble JJ 40404 4280 33 type type NN 40404 4280 34 , , , 40404 4280 35 either either CC 40404 4280 36 growing grow VBG 40404 4280 37 from from IN 40404 4280 38 the the DT 40404 4280 39 bottom bottom NN 40404 4280 40 or or CC 40404 4280 41 floating float VBG 40404 4280 42 free free JJ 40404 4280 43 upon upon IN 40404 4280 44 the the DT 40404 4280 45 surface surface NN 40404 4280 46 . . . 40404 4281 1 It -PRON- PRP 40404 4281 2 is be VBZ 40404 4281 3 to to IN 40404 4281 4 the the DT 40404 4281 5 resinous resinous JJ 40404 4281 6 spores spore NNS 40404 4281 7 of of IN 40404 4281 8 the the DT 40404 4281 9 rhizocarps rhizocarp NNS 40404 4281 10 that that WDT 40404 4281 11 the the DT 40404 4281 12 petroleum petroleum NN 40404 4281 13 and and CC 40404 4281 14 natural natural JJ 40404 4281 15 gas gas NN 40404 4281 16 from from IN 40404 4281 17 Devonian Devonian NNP 40404 4281 18 rocks rock NNS 40404 4281 19 are be VBP 40404 4281 20 largely largely RB 40404 4281 21 due due JJ 40404 4281 22 . . . 40404 4282 1 The the DT 40404 4282 2 decomposition decomposition NN 40404 4282 3 of of IN 40404 4282 4 the the DT 40404 4282 5 spores spore NNS 40404 4282 6 has have VBZ 40404 4282 7 made make VBN 40404 4282 8 the the DT 40404 4282 9 shales shale NNS 40404 4282 10 highly highly RB 40404 4282 11 bituminous bituminous JJ 40404 4282 12 , , , 40404 4282 13 and and CC 40404 4282 14 the the DT 40404 4282 15 oil oil NN 40404 4282 16 and and CC 40404 4282 17 gas gas NN 40404 4282 18 have have VBP 40404 4282 19 accumulated accumulate VBN 40404 4282 20 in in IN 40404 4282 21 the the DT 40404 4282 22 reservoirs reservoir NNS 40404 4282 23 of of IN 40404 4282 24 overlying overlie VBG 40404 4282 25 porous porous JJ 40404 4282 26 sandstones sandstone NNS 40404 4282 27 . . . 40404 4283 1 = = NFP 40404 4283 2 Invertebrates.= invertebrates.= UH 40404 4283 3 We -PRON- PRP 40404 4283 4 must must MD 40404 4283 5 pass pass VB 40404 4283 6 over over RP 40404 4283 7 the the DT 40404 4283 8 ever ever RB 40404 4283 9 - - HYPH 40404 4283 10 changing change VBG 40404 4283 11 groups group NNS 40404 4283 12 of of IN 40404 4283 13 the the DT 40404 4283 14 invertebrates invertebrates NNPS 40404 4283 15 with with IN 40404 4283 16 the the DT 40404 4283 17 briefest brief JJS 40404 4283 18 notice notice NN 40404 4283 19 . . . 40404 4284 1 Chain chain NN 40404 4284 2 corals coral NNS 40404 4284 3 became become VBD 40404 4284 4 extinct extinct JJ 40404 4284 5 at at IN 40404 4284 6 the the DT 40404 4284 7 close close NN 40404 4284 8 of of IN 40404 4284 9 the the DT 40404 4284 10 Silurian Silurian NNP 40404 4284 11 , , , 40404 4284 12 but but CC 40404 4284 13 other other JJ 40404 4284 14 corals coral NNS 40404 4284 15 were be VBD 40404 4284 16 extremely extremely RB 40404 4284 17 common common JJ 40404 4284 18 in in IN 40404 4284 19 the the DT 40404 4284 20 Devonian Devonian NNP 40404 4284 21 seas sea NNS 40404 4284 22 . . . 40404 4285 1 At at IN 40404 4285 2 many many JJ 40404 4285 3 places place NNS 40404 4285 4 corals coral NNS 40404 4285 5 formed form VBD 40404 4285 6 thin thin JJ 40404 4285 7 reefs reef NNS 40404 4285 8 , , , 40404 4285 9 as as IN 40404 4285 10 at at IN 40404 4285 11 Louisville Louisville NNP 40404 4285 12 , , , 40404 4285 13 Kentucky Kentucky NNP 40404 4285 14 , , , 40404 4285 15 where where WRB 40404 4285 16 the the DT 40404 4285 17 hardness hardness NN 40404 4285 18 of of IN 40404 4285 19 the the DT 40404 4285 20 reef reef NNP 40404 4285 21 rock rock NNP 40404 4285 22 is be VBZ 40404 4285 23 one one CD 40404 4285 24 of of IN 40404 4285 25 the the DT 40404 4285 26 causes cause NNS 40404 4285 27 of of IN 40404 4285 28 the the DT 40404 4285 29 Falls Falls NNPS 40404 4285 30 of of IN 40404 4285 31 the the DT 40404 4285 32 Ohio Ohio NNP 40404 4285 33 . . . 40404 4286 1 Sponges sponge NNS 40404 4286 2 , , , 40404 4286 3 echinoderms echinoderm NNS 40404 4286 4 , , , 40404 4286 5 brachiopods brachiopod NNS 40404 4286 6 , , , 40404 4286 7 and and CC 40404 4286 8 mollusks mollusk NNS 40404 4286 9 were be VBD 40404 4286 10 abundant abundant JJ 40404 4286 11 . . . 40404 4287 1 The the DT 40404 4287 2 cephalopods cephalopod NNS 40404 4287 3 take take VBP 40404 4287 4 a a DT 40404 4287 5 new new JJ 40404 4287 6 departure departure NN 40404 4287 7 . . . 40404 4288 1 So so RB 40404 4288 2 far far RB 40404 4288 3 in in IN 40404 4288 4 all all DT 40404 4288 5 their -PRON- PRP$ 40404 4288 6 various various JJ 40404 4288 7 forms form NNS 40404 4288 8 , , , 40404 4288 9 whether whether IN 40404 4288 10 straight straight RB 40404 4288 11 , , , 40404 4288 12 as as IN 40404 4288 13 the the DT 40404 4288 14 Orthoceras Orthoceras NNP 40404 4288 15 , , , 40404 4288 16 or or CC 40404 4288 17 curved curve VBN 40404 4288 18 , , , 40404 4288 19 or or CC 40404 4288 20 close close RB 40404 4288 21 - - HYPH 40404 4288 22 coiled coil VBN 40404 4288 23 as as IN 40404 4288 24 in in IN 40404 4288 25 the the DT 40404 4288 26 nautilus nautilus NN 40404 4288 27 , , , 40404 4288 28 the the DT 40404 4288 29 septum septum NN 40404 4288 30 , , , 40404 4288 31 or or CC 40404 4288 32 partition partition NN 40404 4288 33 dividing divide VBG 40404 4288 34 the the DT 40404 4288 35 chambers chamber NNS 40404 4288 36 , , , 40404 4288 37 met meet VBD 40404 4288 38 the the DT 40404 4288 39 inner inner JJ 40404 4288 40 shell shell NN 40404 4288 41 along along IN 40404 4288 42 a a DT 40404 4288 43 simple simple JJ 40404 4288 44 line line NN 40404 4288 45 , , , 40404 4288 46 like like IN 40404 4288 47 that that DT 40404 4288 48 of of IN 40404 4288 49 the the DT 40404 4288 50 rim rim NN 40404 4288 51 of of IN 40404 4288 52 a a DT 40404 4288 53 saucer saucer NN 40404 4288 54 . . . 40404 4289 1 There there EX 40404 4289 2 now now RB 40404 4289 3 begins begin VBZ 40404 4289 4 a a DT 40404 4289 5 growth growth NN 40404 4289 6 of of IN 40404 4289 7 the the DT 40404 4289 8 septum septum NN 40404 4289 9 by by IN 40404 4289 10 which which WDT 40404 4289 11 its -PRON- PRP$ 40404 4289 12 edges edge NNS 40404 4289 13 become become VBP 40404 4289 14 sharply sharply RB 40404 4289 15 corrugated corrugate VBN 40404 4289 16 , , , 40404 4289 17 and and CC 40404 4289 18 the the DT 40404 4289 19 suture suture NN 40404 4289 20 , , , 40404 4289 21 or or CC 40404 4289 22 line line NN 40404 4289 23 of of IN 40404 4289 24 juncture juncture NN 40404 4289 25 of of IN 40404 4289 26 the the DT 40404 4289 27 septum septum NN 40404 4289 28 and and CC 40404 4289 29 the the DT 40404 4289 30 shell shell NN 40404 4289 31 , , , 40404 4289 32 is be VBZ 40404 4289 33 thus thus RB 40404 4289 34 angled angle VBN 40404 4289 35 . . . 40404 4290 1 The the DT 40404 4290 2 group group NN 40404 4290 3 in in IN 40404 4290 4 which which WDT 40404 4290 5 this this DT 40404 4290 6 growth growth NN 40404 4290 7 of of IN 40404 4290 8 the the DT 40404 4290 9 septum septum NN 40404 4290 10 takes take VBZ 40404 4290 11 place place NN 40404 4290 12 is be VBZ 40404 4290 13 called call VBN 40404 4290 14 the the DT 40404 4290 15 _ _ NNP 40404 4290 16 Goniatite Goniatite NNP 40404 4290 17 _ _ NNP 40404 4290 18 ( ( -LRB- 40404 4290 19 Greek Greek NNP 40404 4290 20 _ _ NNP 40404 4290 21 gonia gonia NNP 40404 4290 22 _ _ NNP 40404 4290 23 , , , 40404 4290 24 angle angle NN 40404 4290 25 ) ) -RRB- 40404 4290 26 . . . 40404 4291 1 [ [ -LRB- 40404 4291 2 Illustration illustration NN 40404 4291 3 : : : 40404 4291 4 Fig Fig NNP 40404 4291 5 . . . 40404 4292 1 296 296 CD 40404 4292 2 . . . 40404 4293 1 A a DT 40404 4293 2 Goniatite Goniatite NNP 40404 4293 3 ] ] -RRB- 40404 4293 4 = = NFP 40404 4293 5 Vertebrates.= Vertebrates.= NNP 40404 4293 6 It -PRON- PRP 40404 4293 7 is be VBZ 40404 4293 8 with with IN 40404 4293 9 the the DT 40404 4293 10 greatest great JJS 40404 4293 11 interest interest NN 40404 4293 12 that that WDT 40404 4293 13 we -PRON- PRP 40404 4293 14 turn turn VBP 40404 4293 15 now now RB 40404 4293 16 to to TO 40404 4293 17 study study VB 40404 4293 18 the the DT 40404 4293 19 backboned backbone VBN 40404 4293 20 animals animal NNS 40404 4293 21 of of IN 40404 4293 22 the the DT 40404 4293 23 Devonian Devonian NNP 40404 4293 24 ; ; : 40404 4293 25 for for IN 40404 4293 26 they -PRON- PRP 40404 4293 27 are be VBP 40404 4293 28 believed believe VBN 40404 4293 29 to to TO 40404 4293 30 be be VB 40404 4293 31 the the DT 40404 4293 32 ancestors ancestor NNS 40404 4293 33 of of IN 40404 4293 34 the the DT 40404 4293 35 hosts host NNS 40404 4293 36 of of IN 40404 4293 37 vertebrates vertebrate NNS 40404 4293 38 which which WDT 40404 4293 39 have have VBP 40404 4293 40 since since IN 40404 4293 41 dominated dominate VBN 40404 4293 42 the the DT 40404 4293 43 earth earth NN 40404 4293 44 . . . 40404 4294 1 Their -PRON- PRP$ 40404 4294 2 rudimentary rudimentary JJ 40404 4294 3 structures structure NNS 40404 4294 4 foreshadowed foreshadow VBD 40404 4294 5 what what WP 40404 4294 6 their -PRON- PRP$ 40404 4294 7 descendants descendant NNS 40404 4294 8 were be VBD 40404 4294 9 to to TO 40404 4294 10 be be VB 40404 4294 11 , , , 40404 4294 12 and and CC 40404 4294 13 give give VB 40404 4294 14 some some DT 40404 4294 15 clue clue NN 40404 4294 16 to to IN 40404 4294 17 the the DT 40404 4294 18 earliest early JJS 40404 4294 19 vertebrates vertebrate NNS 40404 4294 20 from from IN 40404 4294 21 which which WDT 40404 4294 22 they -PRON- PRP 40404 4294 23 sprang spring VBD 40404 4294 24 . . . 40404 4295 1 Like like IN 40404 4295 2 those those DT 40404 4295 3 whose whose WP$ 40404 4295 4 remains remain NNS 40404 4295 5 are be VBP 40404 4295 6 found find VBN 40404 4295 7 in in IN 40404 4295 8 the the DT 40404 4295 9 lower low JJR 40404 4295 10 Paleozoic Paleozoic NNP 40404 4295 11 systems system NNS 40404 4295 12 , , , 40404 4295 13 all all DT 40404 4295 14 of of IN 40404 4295 15 these these DT 40404 4295 16 Devonian devonian JJ 40404 4295 17 vertebrates vertebrate NNS 40404 4295 18 were be VBD 40404 4295 19 aquatic aquatic JJ 40404 4295 20 and and CC 40404 4295 21 go go VB 40404 4295 22 under under IN 40404 4295 23 the the DT 40404 4295 24 general general JJ 40404 4295 25 designation designation NN 40404 4295 26 of of IN 40404 4295 27 fishes fish NNS 40404 4295 28 . . . 40404 4296 1 The the DT 40404 4296 2 lowest low JJS 40404 4296 3 in in IN 40404 4296 4 grade grade NN 40404 4296 5 and and CC 40404 4296 6 nearest near JJS 40404 4296 7 , , , 40404 4296 8 perhaps perhaps RB 40404 4296 9 , , , 40404 4296 10 to to IN 40404 4296 11 the the DT 40404 4296 12 ancestral ancestral JJ 40404 4296 13 type type NN 40404 4296 14 of of IN 40404 4296 15 vertebrates vertebrate NNS 40404 4296 16 , , , 40404 4296 17 was be VBD 40404 4296 18 the the DT 40404 4296 19 problematic problematic JJ 40404 4296 20 creature creature NN 40404 4296 21 , , , 40404 4296 22 an an DT 40404 4296 23 inch inch NN 40404 4296 24 or or CC 40404 4296 25 so so RB 40404 4296 26 long long RB 40404 4296 27 , , , 40404 4296 28 of of IN 40404 4296 29 Figure Figure NNP 40404 4296 30 297 297 CD 40404 4296 31 . . . 40404 4297 1 Note note VB 40404 4297 2 the the DT 40404 4297 3 circular circular JJ 40404 4297 4 mouth mouth NN 40404 4297 5 not not RB 40404 4297 6 supplied supply VBN 40404 4297 7 with with IN 40404 4297 8 jaws jaw NNS 40404 4297 9 , , , 40404 4297 10 the the DT 40404 4297 11 lack lack NN 40404 4297 12 of of IN 40404 4297 13 paired pair VBN 40404 4297 14 fins fin NNS 40404 4297 15 , , , 40404 4297 16 and and CC 40404 4297 17 the the DT 40404 4297 18 symmetric symmetric JJ 40404 4297 19 tail tail NN 40404 4297 20 fin fin NN 40404 4297 21 , , , 40404 4297 22 with with IN 40404 4297 23 the the DT 40404 4297 24 column column NN 40404 4297 25 of of IN 40404 4297 26 cartilaginous cartilaginous JJ 40404 4297 27 , , , 40404 4297 28 ringlike ringlike JJ 40404 4297 29 vertebræ vertebræ NN 40404 4297 30 running run VBG 40404 4297 31 through through IN 40404 4297 32 it -PRON- PRP 40404 4297 33 to to IN 40404 4297 34 the the DT 40404 4297 35 end end NN 40404 4297 36 . . . 40404 4298 1 The the DT 40404 4298 2 animal animal NN 40404 4298 3 is be VBZ 40404 4298 4 probably probably RB 40404 4298 5 to to TO 40404 4298 6 be be VB 40404 4298 7 placed place VBN 40404 4298 8 with with IN 40404 4298 9 the the DT 40404 4298 10 jawless jawless NN 40404 4298 11 lampreys lamprey NNS 40404 4298 12 and and CC 40404 4298 13 hags,--a hags,--a NNP 40404 4298 14 group group NN 40404 4298 15 too too RB 40404 4298 16 low low JJ 40404 4298 17 to to TO 40404 4298 18 be be VB 40404 4298 19 included include VBN 40404 4298 20 among among IN 40404 4298 21 true true JJ 40404 4298 22 fishes fish NNS 40404 4298 23 . . . 40404 4299 1 [ [ -LRB- 40404 4299 2 Illustration illustration NN 40404 4299 3 : : : 40404 4299 4 Fig Fig NNP 40404 4299 5 . . . 40404 4300 1 297 297 CD 40404 4300 2 . . . 40404 4301 1 Palæospondylus Palæospondylus NNP 40404 4301 2 ] ] -RRB- 40404 4301 3 = = SYM 40404 4301 4 Ostracoderms.= Ostracoderms.= NNP 40404 4301 5 This this DT 40404 4301 6 archaic archaic NN 40404 4301 7 group group NN 40404 4301 8 , , , 40404 4301 9 long long RB 40404 4301 10 since since IN 40404 4301 11 extinct extinct NN 40404 4301 12 , , , 40404 4301 13 is be VBZ 40404 4301 14 also also RB 40404 4301 15 too too RB 40404 4301 16 lowly lowly JJ 40404 4301 17 to to TO 40404 4301 18 rank rank VB 40404 4301 19 among among IN 40404 4301 20 the the DT 40404 4301 21 true true JJ 40404 4301 22 fishes fish NNS 40404 4301 23 , , , 40404 4301 24 for for IN 40404 4301 25 its -PRON- PRP$ 40404 4301 26 members member NNS 40404 4301 27 have have VBP 40404 4301 28 neither neither CC 40404 4301 29 jaws jaw NNS 40404 4301 30 nor nor CC 40404 4301 31 paired pair VBD 40404 4301 32 fins fin NNS 40404 4301 33 . . . 40404 4302 1 These these DT 40404 4302 2 small small JJ 40404 4302 3 , , , 40404 4302 4 fishlike fishlike JJ 40404 4302 5 forms form NNS 40404 4302 6 were be VBD 40404 4302 7 cased case VBN 40404 4302 8 in in IN 40404 4302 9 front front NN 40404 4302 10 with with IN 40404 4302 11 bony bony NN 40404 4302 12 plates plate NNS 40404 4302 13 developed develop VBN 40404 4302 14 in in IN 40404 4302 15 the the DT 40404 4302 16 skin skin NN 40404 4302 17 and and CC 40404 4302 18 covered cover VBN 40404 4302 19 in in IN 40404 4302 20 the the DT 40404 4302 21 rear rear NN 40404 4302 22 with with IN 40404 4302 23 scales scale NNS 40404 4302 24 . . . 40404 4303 1 The the DT 40404 4303 2 vertebræ vertebræ NN 40404 4303 3 were be VBD 40404 4303 4 not not RB 40404 4303 5 ossified ossify VBN 40404 4303 6 , , , 40404 4303 7 for for IN 40404 4303 8 no no DT 40404 4303 9 trace trace NN 40404 4303 10 of of IN 40404 4303 11 them -PRON- PRP 40404 4303 12 has have VBZ 40404 4303 13 been be VBN 40404 4303 14 found find VBN 40404 4303 15 . . . 40404 4304 1 [ [ -LRB- 40404 4304 2 Illustration illustration NN 40404 4304 3 : : : 40404 4304 4 Fig Fig NNP 40404 4304 5 . . . 40404 4305 1 298 298 CD 40404 4305 2 . . . 40404 4306 1 An an DT 40404 4306 2 Ostracoderm Ostracoderm NNP 40404 4306 3 ] ] -RRB- 40404 4306 4 = = NFP 40404 4306 5 Devonian Devonian NNP 40404 4306 6 fishes.= fishes.= CD 40404 4306 7 The the DT 40404 4306 8 _ _ NNP 40404 4306 9 true true JJ 40404 4306 10 fishes fish NNS 40404 4306 11 _ _ XX 40404 4306 12 of of IN 40404 4306 13 the the DT 40404 4306 14 Devonian Devonian NNP 40404 4306 15 can can MD 40404 4306 16 best best RB 40404 4306 17 be be VB 40404 4306 18 understood understand VBN 40404 4306 19 by by IN 40404 4306 20 reference reference NN 40404 4306 21 to to IN 40404 4306 22 their -PRON- PRP$ 40404 4306 23 descendants descendant NNS 40404 4306 24 now now RB 40404 4306 25 living live VBG 40404 4306 26 . . . 40404 4307 1 Modern modern JJ 40404 4307 2 fishes fish NNS 40404 4307 3 are be VBP 40404 4307 4 divided divide VBN 40404 4307 5 into into IN 40404 4307 6 several several JJ 40404 4307 7 groups group NNS 40404 4307 8 : : : 40404 4307 9 _ _ NNP 40404 4307 10 sharks shark VBZ 40404 4307 11 _ _ NNP 40404 4307 12 and and CC 40404 4307 13 their -PRON- PRP$ 40404 4307 14 allies ally NNS 40404 4307 15 ; ; : 40404 4307 16 _ _ NNP 40404 4307 17 dipnoans dipnoans NNPS 40404 4307 18 _ _ NNP 40404 4307 19 ; ; : 40404 4307 20 _ _ NNP 40404 4307 21 ganoids ganoids NNP 40404 4307 22 _ _ NNP 40404 4307 23 , , , 40404 4307 24 such such JJ 40404 4307 25 as as IN 40404 4307 26 the the DT 40404 4307 27 sturgeon sturgeon NNP 40404 4307 28 and and CC 40404 4307 29 gar gar NNP 40404 4307 30 ; ; : 40404 4307 31 and and CC 40404 4307 32 _ _ NNP 40404 4307 33 teleosts_,--most teleosts_,--most NNP 40404 4307 34 common common JJ 40404 4307 35 fishes fish NNS 40404 4307 36 , , , 40404 4307 37 such such JJ 40404 4307 38 as as IN 40404 4307 39 the the DT 40404 4307 40 perch perch NN 40404 4307 41 and and CC 40404 4307 42 cod cod NN 40404 4307 43 . . . 40404 4308 1 [ [ -LRB- 40404 4308 2 Illustration illustration NN 40404 4308 3 : : : 40404 4308 4 Fig Fig NNP 40404 4308 5 . . . 40404 4309 1 299 299 CD 40404 4309 2 . . . 40404 4310 1 A a DT 40404 4310 2 Paleozoic Paleozoic NNP 40404 4310 3 Shark Shark NNP 40404 4310 4 ] ] -RRB- 40404 4310 5 = = VBZ 40404 4310 6 Sharks.= Sharks.= NNP 40404 4310 7 Of of IN 40404 4310 8 all all DT 40404 4310 9 groups group NNS 40404 4310 10 of of IN 40404 4310 11 living living NN 40404 4310 12 fishes fish VBZ 40404 4310 13 the the DT 40404 4310 14 sharks shark NNS 40404 4310 15 are be VBP 40404 4310 16 the the DT 40404 4310 17 oldest old JJS 40404 4310 18 and and CC 40404 4310 19 still still RB 40404 4310 20 retain retain VB 40404 4310 21 most most RBS 40404 4310 22 fully fully RB 40404 4310 23 the the DT 40404 4310 24 embryonic embryonic JJ 40404 4310 25 characters character NNS 40404 4310 26 of of IN 40404 4310 27 their -PRON- PRP$ 40404 4310 28 Paleozoic Paleozoic NNP 40404 4310 29 ancestors ancestor NNS 40404 4310 30 . . . 40404 4311 1 Such such JJ 40404 4311 2 characters character NNS 40404 4311 3 are be VBP 40404 4311 4 the the DT 40404 4311 5 cartilaginous cartilaginous JJ 40404 4311 6 skeleton skeleton NN 40404 4311 7 , , , 40404 4311 8 and and CC 40404 4311 9 the the DT 40404 4311 10 separate separate JJ 40404 4311 11 gill gill NN 40404 4311 12 slits slit NNS 40404 4311 13 with with IN 40404 4311 14 which which WDT 40404 4311 15 the the DT 40404 4311 16 throat throat NN 40404 4311 17 wall wall NN 40404 4311 18 is be VBZ 40404 4311 19 pierced pierce VBN 40404 4311 20 and and CC 40404 4311 21 which which WDT 40404 4311 22 are be VBP 40404 4311 23 arranged arrange VBN 40404 4311 24 in in IN 40404 4311 25 line line NN 40404 4311 26 like like IN 40404 4311 27 the the DT 40404 4311 28 gill gill JJ 40404 4311 29 openings opening NNS 40404 4311 30 of of IN 40404 4311 31 the the DT 40404 4311 32 lamprey lamprey NN 40404 4311 33 . . . 40404 4312 1 The the DT 40404 4312 2 sharks shark NNS 40404 4312 3 of of IN 40404 4312 4 the the DT 40404 4312 5 Silurian silurian JJ 40404 4312 6 and and CC 40404 4312 7 Devonian Devonian NNP 40404 4312 8 are be VBP 40404 4312 9 known know VBN 40404 4312 10 to to IN 40404 4312 11 us -PRON- PRP 40404 4312 12 chiefly chiefly RB 40404 4312 13 by by IN 40404 4312 14 their -PRON- PRP$ 40404 4312 15 teeth tooth NNS 40404 4312 16 and and CC 40404 4312 17 fin fin NNP 40404 4312 18 spines spine NNS 40404 4312 19 , , , 40404 4312 20 for for IN 40404 4312 21 they -PRON- PRP 40404 4312 22 were be VBD 40404 4312 23 unprotected unprotecte VBN 40404 4312 24 by by IN 40404 4312 25 scales scale NNS 40404 4312 26 or or CC 40404 4312 27 plates plate NNS 40404 4312 28 , , , 40404 4312 29 and and CC 40404 4312 30 were be VBD 40404 4312 31 devoid devoid JJ 40404 4312 32 of of IN 40404 4312 33 a a DT 40404 4312 34 bony bony NN 40404 4312 35 skeleton skeleton NN 40404 4312 36 . . . 40404 4313 1 Figure figure NN 40404 4313 2 299 299 CD 40404 4313 3 is be VBZ 40404 4313 4 a a DT 40404 4313 5 restoration restoration NN 40404 4313 6 of of IN 40404 4313 7 an an DT 40404 4313 8 archaic archaic NN 40404 4313 9 shark shark NN 40404 4313 10 from from IN 40404 4313 11 a a DT 40404 4313 12 somewhat somewhat RB 40404 4313 13 higher high JJR 40404 4313 14 horizon horizon NN 40404 4313 15 . . . 40404 4314 1 Note note VB 40404 4314 2 the the DT 40404 4314 3 seven seven CD 40404 4314 4 gill gill NN 40404 4314 5 slits slit NNS 40404 4314 6 and and CC 40404 4314 7 the the DT 40404 4314 8 lappetlike lappetlike NN 40404 4314 9 paired pair VBD 40404 4314 10 fins fin NNS 40404 4314 11 . . . 40404 4315 1 These these DT 40404 4315 2 fins fin NNS 40404 4315 3 seem seem VBP 40404 4315 4 to to TO 40404 4315 5 be be VB 40404 4315 6 remnants remnant NNS 40404 4315 7 of of IN 40404 4315 8 the the DT 40404 4315 9 continuous continuous JJ 40404 4315 10 fold fold NN 40404 4315 11 of of IN 40404 4315 12 skin skin NN 40404 4315 13 which which WDT 40404 4315 14 , , , 40404 4315 15 as as IN 40404 4315 16 embryology embryology NN 40404 4315 17 teaches teach VBZ 40404 4315 18 , , , 40404 4315 19 passed pass VBN 40404 4315 20 from from IN 40404 4315 21 fore fore NN 40404 4315 22 to to IN 40404 4315 23 aft aft VB 40404 4315 24 down down RP 40404 4315 25 each each DT 40404 4315 26 side side NN 40404 4315 27 of of IN 40404 4315 28 the the DT 40404 4315 29 primitive primitive JJ 40404 4315 30 vertebrate vertebrate NN 40404 4315 31 . . . 40404 4316 1 Devonian devonian JJ 40404 4316 2 sharks shark NNS 40404 4316 3 were be VBD 40404 4316 4 comparatively comparatively RB 40404 4316 5 small small JJ 40404 4316 6 . . . 40404 4317 1 They -PRON- PRP 40404 4317 2 had have VBD 40404 4317 3 not not RB 40404 4317 4 evolved evolve VBN 40404 4317 5 into into IN 40404 4317 6 the the DT 40404 4317 7 ferocious ferocious JJ 40404 4317 8 monsters monster NNS 40404 4317 9 which which WDT 40404 4317 10 were be VBD 40404 4317 11 later later RB 40404 4317 12 to to TO 40404 4317 13 be be VB 40404 4317 14 masters master NNS 40404 4317 15 of of IN 40404 4317 16 the the DT 40404 4317 17 seas sea NNS 40404 4317 18 . . . 40404 4318 1 [ [ -LRB- 40404 4318 2 Illustration illustration NN 40404 4318 3 : : : 40404 4318 4 Fig Fig NNP 40404 4318 5 . . . 40404 4319 1 300 300 CD 40404 4319 2 . . . 40404 4320 1 A a DT 40404 4320 2 Devonian Devonian NNP 40404 4320 3 Dipnoan Dipnoan NNP 40404 4320 4 ] ] -RRB- 40404 4320 5 = = SYM 40404 4320 6 Dipnoans Dipnoans NNPS 40404 4320 7 , , , 40404 4320 8 or or CC 40404 4320 9 lung lung NN 40404 4320 10 fishes.= fishes.= CD 40404 4320 11 These these DT 40404 4320 12 are be VBP 40404 4320 13 represented represent VBN 40404 4320 14 to to IN 40404 4320 15 - - HYPH 40404 4320 16 day day NN 40404 4320 17 by by IN 40404 4320 18 a a DT 40404 4320 19 few few JJ 40404 4320 20 peculiar peculiar JJ 40404 4320 21 fishes fish NNS 40404 4320 22 and and CC 40404 4320 23 are be VBP 40404 4320 24 distinguished distinguish VBN 40404 4320 25 by by IN 40404 4320 26 some some DT 40404 4320 27 high high JJ 40404 4320 28 structures structure NNS 40404 4320 29 which which WDT 40404 4320 30 ally ally VBP 40404 4320 31 them -PRON- PRP 40404 4320 32 with with IN 40404 4320 33 amphibians amphibian NNS 40404 4320 34 . . . 40404 4321 1 An an DT 40404 4321 2 air air NN 40404 4321 3 sac sac NN 40404 4321 4 with with IN 40404 4321 5 cellular cellular JJ 40404 4321 6 spaces space NNS 40404 4321 7 is be VBZ 40404 4321 8 connected connect VBN 40404 4321 9 with with IN 40404 4321 10 the the DT 40404 4321 11 gullet gullet NN 40404 4321 12 and and CC 40404 4321 13 serves serve VBZ 40404 4321 14 as as IN 40404 4321 15 a a DT 40404 4321 16 rudimentary rudimentary JJ 40404 4321 17 lung lung NN 40404 4321 18 . . . 40404 4322 1 It -PRON- PRP 40404 4322 2 corresponds correspond VBZ 40404 4322 3 with with IN 40404 4322 4 the the DT 40404 4322 5 swim swim NN 40404 4322 6 bladder bladder NN 40404 4322 7 of of IN 40404 4322 8 most most JJS 40404 4322 9 modern modern JJ 40404 4322 10 fishes fish NNS 40404 4322 11 , , , 40404 4322 12 and and CC 40404 4322 13 appears appear VBZ 40404 4322 14 to to TO 40404 4322 15 have have VB 40404 4322 16 had have VBN 40404 4322 17 a a DT 40404 4322 18 common common JJ 40404 4322 19 origin origin NN 40404 4322 20 with with IN 40404 4322 21 it -PRON- PRP 40404 4322 22 . . . 40404 4323 1 We -PRON- PRP 40404 4323 2 may may MD 40404 4323 3 conceive conceive VB 40404 4323 4 that that IN 40404 4323 5 the the DT 40404 4323 6 primordial primordial JJ 40404 4323 7 fishes fish NNS 40404 4323 8 not not RB 40404 4323 9 only only RB 40404 4323 10 had have VBD 40404 4323 11 gills gill NNS 40404 4323 12 used use VBN 40404 4323 13 in in IN 40404 4323 14 breathing breathe VBG 40404 4323 15 air air NN 40404 4323 16 dissolved dissolve VBN 40404 4323 17 in in IN 40404 4323 18 water water NN 40404 4323 19 , , , 40404 4323 20 but but CC 40404 4323 21 also also RB 40404 4323 22 developed develop VBD 40404 4323 23 a a DT 40404 4323 24 saclike saclike NN 40404 4323 25 pouch pouch NN 40404 4323 26 off off IN 40404 4323 27 the the DT 40404 4323 28 gullet gullet NN 40404 4323 29 . . . 40404 4324 1 This this DT 40404 4324 2 sac sac NN 40404 4324 3 evolved evolve VBD 40404 4324 4 along along IN 40404 4324 5 two two CD 40404 4324 6 distinct distinct JJ 40404 4324 7 lines line NNS 40404 4324 8 . . . 40404 4325 1 On on IN 40404 4325 2 the the DT 40404 4325 3 line line NN 40404 4325 4 of of IN 40404 4325 5 the the DT 40404 4325 6 ancestry ancestry NN 40404 4325 7 of of IN 40404 4325 8 most most JJS 40404 4325 9 modern modern JJ 40404 4325 10 fishes fish VBZ 40404 4325 11 its -PRON- PRP$ 40404 4325 12 duct duct NN 40404 4325 13 was be VBD 40404 4325 14 closed closed JJ 40404 4325 15 and and CC 40404 4325 16 it -PRON- PRP 40404 4325 17 became become VBD 40404 4325 18 the the DT 40404 4325 19 swim swim NN 40404 4325 20 bladder bladder NN 40404 4325 21 used use VBN 40404 4325 22 in in IN 40404 4325 23 flotation flotation NN 40404 4325 24 and and CC 40404 4325 25 balancing balancing NN 40404 4325 26 . . . 40404 4326 1 On on IN 40404 4326 2 another another DT 40404 4326 3 line line NN 40404 4326 4 of of IN 40404 4326 5 descent descent NN 40404 4326 6 it -PRON- PRP 40404 4326 7 was be VBD 40404 4326 8 left leave VBN 40404 4326 9 open open JJ 40404 4326 10 , , , 40404 4326 11 air air NN 40404 4326 12 was be VBD 40404 4326 13 swallowed swallow VBN 40404 4326 14 into into IN 40404 4326 15 it -PRON- PRP 40404 4326 16 , , , 40404 4326 17 and and CC 40404 4326 18 it -PRON- PRP 40404 4326 19 developed develop VBD 40404 4326 20 into into IN 40404 4326 21 the the DT 40404 4326 22 rudimentary rudimentary JJ 40404 4326 23 lung lung NN 40404 4326 24 of of IN 40404 4326 25 the the DT 40404 4326 26 dipnoans dipnoans NNPS 40404 4326 27 and and CC 40404 4326 28 into into IN 40404 4326 29 the the DT 40404 4326 30 more more RBR 40404 4326 31 perfect perfect JJ 40404 4326 32 lungs lung NNS 40404 4326 33 of of IN 40404 4326 34 the the DT 40404 4326 35 amphibians amphibians NNPS 40404 4326 36 and and CC 40404 4326 37 other other JJ 40404 4326 38 air air NN 40404 4326 39 - - HYPH 40404 4326 40 breathing breathing NN 40404 4326 41 vertebrates vertebrate NNS 40404 4326 42 . . . 40404 4327 1 One one CD 40404 4327 2 of of IN 40404 4327 3 the the DT 40404 4327 4 ancient ancient JJ 40404 4327 5 dipnoans dipnoan NNS 40404 4327 6 is be VBZ 40404 4327 7 illustrated illustrate VBN 40404 4327 8 in in IN 40404 4327 9 Figure Figure NNP 40404 4327 10 300 300 CD 40404 4327 11 . . . 40404 4328 1 Some some DT 40404 4328 2 of of IN 40404 4328 3 the the DT 40404 4328 4 members member NNS 40404 4328 5 of of IN 40404 4328 6 this this DT 40404 4328 7 order order NN 40404 4328 8 were be VBD 40404 4328 9 , , , 40404 4328 10 like like IN 40404 4328 11 the the DT 40404 4328 12 ostracoderms ostracoderm NNS 40404 4328 13 , , , 40404 4328 14 cased case VBN 40404 4328 15 in in IN 40404 4328 16 armor armor NN 40404 4328 17 , , , 40404 4328 18 but but CC 40404 4328 19 their -PRON- PRP$ 40404 4328 20 higher high JJR 40404 4328 21 rank rank NN 40404 4328 22 is be VBZ 40404 4328 23 shown show VBN 40404 4328 24 by by IN 40404 4328 25 their -PRON- PRP$ 40404 4328 26 powerful powerful JJ 40404 4328 27 jaws jaw NNS 40404 4328 28 and and CC 40404 4328 29 by by IN 40404 4328 30 other other JJ 40404 4328 31 structures structure NNS 40404 4328 32 . . . 40404 4329 1 Some some DT 40404 4329 2 of of IN 40404 4329 3 these these DT 40404 4329 4 armored armored JJ 40404 4329 5 fishes fish NNS 40404 4329 6 reached reach VBD 40404 4329 7 twenty twenty CD 40404 4329 8 - - HYPH 40404 4329 9 five five CD 40404 4329 10 feet foot NNS 40404 4329 11 in in IN 40404 4329 12 length length NN 40404 4329 13 and and CC 40404 4329 14 six six CD 40404 4329 15 feet foot NNS 40404 4329 16 across across IN 40404 4329 17 the the DT 40404 4329 18 head head NN 40404 4329 19 . . . 40404 4330 1 They -PRON- PRP 40404 4330 2 were be VBD 40404 4330 3 the the DT 40404 4330 4 tyrants tyrant NNS 40404 4330 5 of of IN 40404 4330 6 the the DT 40404 4330 7 Devonian Devonian NNP 40404 4330 8 seas sea NNS 40404 4330 9 . . . 40404 4331 1 [ [ -LRB- 40404 4331 2 Illustration illustration NN 40404 4331 3 : : : 40404 4331 4 Fig Fig NNP 40404 4331 5 . . . 40404 4332 1 301 301 CD 40404 4332 2 . . . 40404 4333 1 A a DT 40404 4333 2 Devonian Devonian NNP 40404 4333 3 Fringe Fringe NNP 40404 4333 4 - - HYPH 40404 4333 5 Finned Finned NNP 40404 4333 6 Ganoid Ganoid NNP 40404 4333 7 ] ] -RRB- 40404 4333 8 = = VBZ 40404 4333 9 Ganoids.= Ganoids.= NNP 40404 4333 10 These these DT 40404 4333 11 take take VBP 40404 4333 12 their -PRON- PRP$ 40404 4333 13 name name NN 40404 4333 14 from from IN 40404 4333 15 their -PRON- PRP$ 40404 4333 16 enameled enamel VBN 40404 4333 17 plates plate NNS 40404 4333 18 or or CC 40404 4333 19 scales scale NNS 40404 4333 20 of of IN 40404 4333 21 bone bone NN 40404 4333 22 . . . 40404 4334 1 The the DT 40404 4334 2 few few JJ 40404 4334 3 genera genera NN 40404 4334 4 now now RB 40404 4334 5 surviving survive VBG 40404 4334 6 are be VBP 40404 4334 7 the the DT 40404 4334 8 descendants descendant NNS 40404 4334 9 of of IN 40404 4334 10 the the DT 40404 4334 11 tribes tribe NNS 40404 4334 12 which which WDT 40404 4334 13 swarmed swarm VBD 40404 4334 14 in in IN 40404 4334 15 the the DT 40404 4334 16 Devonian Devonian NNP 40404 4334 17 seas sea NNS 40404 4334 18 . . . 40404 4335 1 A a DT 40404 4335 2 restoration restoration NN 40404 4335 3 of of IN 40404 4335 4 one one CD 40404 4335 5 of of IN 40404 4335 6 a a DT 40404 4335 7 leading lead VBG 40404 4335 8 order order NN 40404 4335 9 , , , 40404 4335 10 the the DT 40404 4335 11 _ _ NNP 40404 4335 12 fringe fringe NN 40404 4335 13 - - HYPH 40404 4335 14 finned fin VBN 40404 4335 15 _ _ NNP 40404 4335 16 ganoids ganoid NNS 40404 4335 17 , , , 40404 4335 18 is be VBZ 40404 4335 19 given give VBN 40404 4335 20 in in IN 40404 4335 21 Figure Figure NNP 40404 4335 22 301 301 CD 40404 4335 23 . . . 40404 4336 1 The the DT 40404 4336 2 side side NN 40404 4336 3 fins fin NNS 40404 4336 4 , , , 40404 4336 5 which which WDT 40404 4336 6 correspond correspond VBP 40404 4336 7 to to IN 40404 4336 8 the the DT 40404 4336 9 limbs limb NNS 40404 4336 10 of of IN 40404 4336 11 the the DT 40404 4336 12 higher high JJR 40404 4336 13 vertebrates vertebrate NNS 40404 4336 14 , , , 40404 4336 15 are be VBP 40404 4336 16 quite quite RB 40404 4336 17 unlike unlike IN 40404 4336 18 those those DT 40404 4336 19 of of IN 40404 4336 20 most most JJS 40404 4336 21 modern modern JJ 40404 4336 22 fishes fish NNS 40404 4336 23 . . . 40404 4337 1 Their -PRON- PRP$ 40404 4337 2 rays ray NNS 40404 4337 3 , , , 40404 4337 4 instead instead RB 40404 4337 5 of of IN 40404 4337 6 radiating radiate VBG 40404 4337 7 from from IN 40404 4337 8 a a DT 40404 4337 9 common common JJ 40404 4337 10 base base NN 40404 4337 11 , , , 40404 4337 12 fringe fringe VB 40404 4337 13 a a DT 40404 4337 14 central central JJ 40404 4337 15 lobe lobe NN 40404 4337 16 which which WDT 40404 4337 17 contains contain VBZ 40404 4337 18 a a DT 40404 4337 19 cartilaginous cartilaginous JJ 40404 4337 20 axis axis NN 40404 4337 21 . . . 40404 4338 1 The the DT 40404 4338 2 teeth tooth NNS 40404 4338 3 of of IN 40404 4338 4 the the DT 40404 4338 5 Devonian Devonian NNP 40404 4338 6 ganoids ganoid NNS 40404 4338 7 show show VBP 40404 4338 8 a a DT 40404 4338 9 complicated complicated JJ 40404 4338 10 folded fold VBN 40404 4338 11 structure structure NN 40404 4338 12 . . . 40404 4339 1 = = NFP 40404 4339 2 General general JJ 40404 4339 3 characteristics characteristic NNS 40404 4339 4 of of IN 40404 4339 5 Devonian Devonian NNP 40404 4339 6 fishes.= fishes.= CD 40404 4339 7 _ _ NNP 40404 4339 8 The the DT 40404 4339 9 notochord notochord NN 40404 4339 10 is be VBZ 40404 4339 11 persistent persistent JJ 40404 4339 12 . . . 40404 4339 13 _ _ NNP 40404 4339 14 The the DT 40404 4339 15 notochord notochord NN 40404 4339 16 is be VBZ 40404 4339 17 a a DT 40404 4339 18 continuous continuous JJ 40404 4339 19 rod rod NN 40404 4339 20 of of IN 40404 4339 21 cartilage cartilage NN 40404 4339 22 , , , 40404 4339 23 or or CC 40404 4339 24 gristle gristle NN 40404 4339 25 , , , 40404 4339 26 which which WDT 40404 4339 27 in in IN 40404 4339 28 the the DT 40404 4339 29 embryological embryological JJ 40404 4339 30 growth growth NN 40404 4339 31 of of IN 40404 4339 32 vertebrate vertebrate NN 40404 4339 33 animals animal NNS 40404 4339 34 supports support VBZ 40404 4339 35 the the DT 40404 4339 36 spinal spinal JJ 40404 4339 37 nerve nerve NN 40404 4339 38 cord cord NN 40404 4339 39 before before IN 40404 4339 40 the the DT 40404 4339 41 formation formation NN 40404 4339 42 of of IN 40404 4339 43 the the DT 40404 4339 44 vertebræ vertebræ NN 40404 4339 45 . . . 40404 4340 1 In in IN 40404 4340 2 most most JJS 40404 4340 3 modern modern JJ 40404 4340 4 fishes fish NNS 40404 4340 5 and and CC 40404 4340 6 in in IN 40404 4340 7 all all DT 40404 4340 8 higher high JJR 40404 4340 9 vertebrates vertebrate NNS 40404 4340 10 the the DT 40404 4340 11 notochord notochord NN 40404 4340 12 is be VBZ 40404 4340 13 gradually gradually RB 40404 4340 14 removed remove VBN 40404 4340 15 as as IN 40404 4340 16 the the DT 40404 4340 17 bodies body NNS 40404 4340 18 of of IN 40404 4340 19 the the DT 40404 4340 20 vertebræ vertebræ NN 40404 4340 21 are be VBP 40404 4340 22 formed form VBN 40404 4340 23 about about IN 40404 4340 24 it -PRON- PRP 40404 4340 25 ; ; : 40404 4340 26 but but CC 40404 4340 27 in in IN 40404 4340 28 the the DT 40404 4340 29 Devonian Devonian NNP 40404 4340 30 fishes fish VBZ 40404 4340 31 it -PRON- PRP 40404 4340 32 persists persist VBZ 40404 4340 33 through through IN 40404 4340 34 maturity maturity NN 40404 4340 35 and and CC 40404 4340 36 the the DT 40404 4340 37 vertebræ vertebræ NN 40404 4340 38 remain remain VBP 40404 4340 39 incomplete incomplete JJ 40404 4340 40 . . . 40404 4341 1 = = NFP 40404 4341 2 The the DT 40404 4341 3 skeleton skeleton NN 40404 4341 4 is be VBZ 40404 4341 5 cartilaginous.= cartilaginous.= CD 40404 4341 6 This this DT 40404 4341 7 also also RB 40404 4341 8 is be VBZ 40404 4341 9 an an DT 40404 4341 10 embryological embryological JJ 40404 4341 11 characteristic characteristic NN 40404 4341 12 . . . 40404 4342 1 In in IN 40404 4342 2 the the DT 40404 4342 3 Devonian Devonian NNP 40404 4342 4 fishes fish VBZ 40404 4342 5 the the DT 40404 4342 6 vertebræ vertebræ NN 40404 4342 7 , , , 40404 4342 8 as as RB 40404 4342 9 well well RB 40404 4342 10 as as IN 40404 4342 11 the the DT 40404 4342 12 other other JJ 40404 4342 13 parts part NNS 40404 4342 14 of of IN 40404 4342 15 the the DT 40404 4342 16 skeleton skeleton NN 40404 4342 17 , , , 40404 4342 18 have have VBP 40404 4342 19 not not RB 40404 4342 20 ossified ossify VBN 40404 4342 21 , , , 40404 4342 22 or or CC 40404 4342 23 changed change VBN 40404 4342 24 to to IN 40404 4342 25 bone bone NN 40404 4342 26 , , , 40404 4342 27 but but CC 40404 4342 28 remain remain VBP 40404 4342 29 in in IN 40404 4342 30 their -PRON- PRP$ 40404 4342 31 primitive primitive JJ 40404 4342 32 cartilaginous cartilaginous JJ 40404 4342 33 condition condition NN 40404 4342 34 . . . 40404 4343 1 [ [ -LRB- 40404 4343 2 Illustration illustration NN 40404 4343 3 : : : 40404 4343 4 Fig Fig NNP 40404 4343 5 . . . 40404 4344 1 302 302 CD 40404 4344 2 . . . 40404 4345 1 Vertebræ Vertebræ NNP 40404 4345 2 of of IN 40404 4345 3 Sturgeon Sturgeon NNP 40404 4345 4 in in IN 40404 4345 5 side side JJ 40404 4345 6 view view NN 40404 4345 7 _ _ NNP 40404 4345 8 A A NNP 40404 4345 9 _ _ NNP 40404 4345 10 ; ; : 40404 4345 11 and and CC 40404 4345 12 vertical vertical JJ 40404 4345 13 transverse transverse NN 40404 4345 14 section section NN 40404 4345 15 _ _ NNP 40404 4345 16 B B NNP 40404 4345 17 _ _ NNP 40404 4345 18 , , , 40404 4345 19 showing show VBG 40404 4345 20 Notochord Notochord NNP 40404 4345 21 _ _ NNP 40404 4345 22 ch ch NNP 40404 4345 23 _ _ NNP 40404 4345 24 , , , 40404 4345 25 and and CC 40404 4345 26 Neural Neural NNP 40404 4345 27 Canal Canal NNP 40404 4345 28 _ _ NNP 40404 4345 29 m m NNP 40404 4345 30 _ _ NNP 40404 4345 31 ] ] -RRB- 40404 4345 32 = = NFP 40404 4345 33 The the DT 40404 4345 34 tail tail NN 40404 4345 35 fin fin NN 40404 4345 36 is be VBZ 40404 4345 37 vertebrated.= vertebrated.= CD 40404 4345 38 The the DT 40404 4345 39 backbone backbone NN 40404 4345 40 runs run VBZ 40404 4345 41 through through IN 40404 4345 42 the the DT 40404 4345 43 fin fin NN 40404 4345 44 and and CC 40404 4345 45 is be VBZ 40404 4345 46 fringed fringe VBN 40404 4345 47 above above IN 40404 4345 48 and and CC 40404 4345 49 below below RB 40404 4345 50 with with IN 40404 4345 51 its -PRON- PRP$ 40404 4345 52 vertical vertical JJ 40404 4345 53 rays ray NNS 40404 4345 54 . . . 40404 4346 1 In in IN 40404 4346 2 some some DT 40404 4346 3 fishes fish NNS 40404 4346 4 with with IN 40404 4346 5 vertebrated vertebrated JJ 40404 4346 6 tail tail NN 40404 4346 7 fins fin NNS 40404 4346 8 the the DT 40404 4346 9 fin fin NN 40404 4346 10 is be VBZ 40404 4346 11 symmetric symmetric JJ 40404 4346 12 ( ( -LRB- 40404 4346 13 Fig fig NN 40404 4346 14 . . . 40404 4347 1 300 300 CD 40404 4347 2 ) ) -RRB- 40404 4347 3 , , , 40404 4347 4 and and CC 40404 4347 5 this this DT 40404 4347 6 seems seem VBZ 40404 4347 7 to to TO 40404 4347 8 be be VB 40404 4347 9 the the DT 40404 4347 10 primitive primitive JJ 40404 4347 11 type type NN 40404 4347 12 . . . 40404 4348 1 In in IN 40404 4348 2 others other NNS 40404 4348 3 the the DT 40404 4348 4 tail tail NN 40404 4348 5 fin fin NN 40404 4348 6 is be VBZ 40404 4348 7 unsymmetric unsymmetric JJ 40404 4348 8 : : : 40404 4348 9 the the DT 40404 4348 10 backbone backbone NN 40404 4348 11 runs run VBZ 40404 4348 12 into into IN 40404 4348 13 the the DT 40404 4348 14 upper upper JJ 40404 4348 15 lobe lobe NN 40404 4348 16 , , , 40404 4348 17 leaving leave VBG 40404 4348 18 the the DT 40404 4348 19 two two CD 40404 4348 20 lobes lobe NNS 40404 4348 21 of of IN 40404 4348 22 unequal unequal JJ 40404 4348 23 size size NN 40404 4348 24 . . . 40404 4349 1 In in IN 40404 4349 2 most most JJS 40404 4349 3 modern modern JJ 40404 4349 4 fishes fish NNS 40404 4349 5 ( ( -LRB- 40404 4349 6 the the DT 40404 4349 7 _ _ NNP 40404 4349 8 teleosts teleost NNS 40404 4349 9 _ _ NNP 40404 4349 10 ) ) -RRB- 40404 4349 11 the the DT 40404 4349 12 tail tail NN 40404 4349 13 fin fin NN 40404 4349 14 is be VBZ 40404 4349 15 not not RB 40404 4349 16 vertebrated vertebrate VBN 40404 4349 17 : : : 40404 4349 18 the the DT 40404 4349 19 spinal spinal JJ 40404 4349 20 column column NN 40404 4349 21 ends end VBZ 40404 4349 22 in in IN 40404 4349 23 a a DT 40404 4349 24 broad broad JJ 40404 4349 25 plate plate NN 40404 4349 26 , , , 40404 4349 27 to to TO 40404 4349 28 which which WDT 40404 4349 29 the the DT 40404 4349 30 diverging diverge VBG 40404 4349 31 fin fin NN 40404 4349 32 rays ray NNS 40404 4349 33 are be VBP 40404 4349 34 attached attach VBN 40404 4349 35 . . . 40404 4350 1 But but CC 40404 4350 2 along along IN 40404 4350 3 with with IN 40404 4350 4 these these DT 40404 4350 5 embryonic embryonic JJ 40404 4350 6 characters character NNS 40404 4350 7 , , , 40404 4350 8 which which WDT 40404 4350 9 were be VBD 40404 4350 10 common common JJ 40404 4350 11 to to IN 40404 4350 12 all all DT 40404 4350 13 Devonian Devonian NNP 40404 4350 14 fishes fish NNS 40404 4350 15 , , , 40404 4350 16 there there EX 40404 4350 17 were be VBD 40404 4350 18 other other JJ 40404 4350 19 structures structure NNS 40404 4350 20 in in IN 40404 4350 21 certain certain JJ 40404 4350 22 groups group NNS 40404 4350 23 which which WDT 40404 4350 24 foreshadowed foreshadow VBD 40404 4350 25 the the DT 40404 4350 26 higher high JJR 40404 4350 27 structures structure NNS 40404 4350 28 of of IN 40404 4350 29 the the DT 40404 4350 30 land land NN 40404 4350 31 vertebrates vertebrate NNS 40404 4350 32 which which WDT 40404 4350 33 were be VBD 40404 4350 34 yet yet RB 40404 4350 35 to to TO 40404 4350 36 come come VB 40404 4350 37 : : : 40404 4350 38 air air NN 40404 4350 39 sacs sacs NN 40404 4350 40 which which WDT 40404 4350 41 were be VBD 40404 4350 42 to to TO 40404 4350 43 develop develop VB 40404 4350 44 into into IN 40404 4350 45 lungs lung NNS 40404 4350 46 , , , 40404 4350 47 and and CC 40404 4350 48 cartilaginous cartilaginous JJ 40404 4350 49 axes axis NNS 40404 4350 50 in in IN 40404 4350 51 the the DT 40404 4350 52 side side NN 40404 4350 53 fins fin NNS 40404 4350 54 which which WDT 40404 4350 55 were be VBD 40404 4350 56 a a DT 40404 4350 57 prophecy prophecy NN 40404 4350 58 of of IN 40404 4350 59 limbs limb NNS 40404 4350 60 . . . 40404 4351 1 The the DT 40404 4351 2 vertebrates vertebrate NNS 40404 4351 3 had have VBD 40404 4351 4 already already RB 40404 4351 5 advanced advance VBN 40404 4351 6 far far RB 40404 4351 7 enough enough RB 40404 4351 8 to to TO 40404 4351 9 prove prove VB 40404 4351 10 the the DT 40404 4351 11 superiority superiority NN 40404 4351 12 of of IN 40404 4351 13 their -PRON- PRP$ 40404 4351 14 type type NN 40404 4351 15 of of IN 40404 4351 16 structure structure NN 40404 4351 17 to to IN 40404 4351 18 all all DT 40404 4351 19 others other NNS 40404 4351 20 . . . 40404 4352 1 Their -PRON- PRP$ 40404 4352 2 internal internal JJ 40404 4352 3 skeleton skeleton NN 40404 4352 4 afforded afford VBD 40404 4352 5 the the DT 40404 4352 6 best good JJS 40404 4352 7 attachment attachment NN 40404 4352 8 for for IN 40404 4352 9 muscles muscle NNS 40404 4352 10 and and CC 40404 4352 11 enabled enable VBD 40404 4352 12 them -PRON- PRP 40404 4352 13 to to TO 40404 4352 14 become become VB 40404 4352 15 the the DT 40404 4352 16 largest large JJS 40404 4352 17 and and CC 40404 4352 18 most most RBS 40404 4352 19 powerful powerful JJ 40404 4352 20 creatures creature NNS 40404 4352 21 of of IN 40404 4352 22 the the DT 40404 4352 23 time time NN 40404 4352 24 . . . 40404 4353 1 The the DT 40404 4353 2 central central JJ 40404 4353 3 nervous nervous JJ 40404 4353 4 system system NN 40404 4353 5 , , , 40404 4353 6 with with IN 40404 4353 7 the the DT 40404 4353 8 predominance predominance NN 40404 4353 9 given give VBN 40404 4353 10 to to IN 40404 4353 11 the the DT 40404 4353 12 ganglia ganglia NN 40404 4353 13 at at IN 40404 4353 14 the the DT 40404 4353 15 fore fore JJ 40404 4353 16 end end NN 40404 4353 17 of of IN 40404 4353 18 the the DT 40404 4353 19 nerve nerve NN 40404 4353 20 cord,--the cord,--the NNP 40404 4353 21 brain,--already brain,--already NNP 40404 4353 22 endowed endow VBD 40404 4353 23 them -PRON- PRP 40404 4353 24 with with IN 40404 4353 25 greater great JJR 40404 4353 26 energy energy NN 40404 4353 27 than than IN 40404 4353 28 the the DT 40404 4353 29 invertebrates invertebrates NNPS 40404 4353 30 ; ; : 40404 4353 31 and and CC 40404 4353 32 , , , 40404 4353 33 still still RB 40404 4353 34 more more RBR 40404 4353 35 important important JJ 40404 4353 36 , , , 40404 4353 37 these these DT 40404 4353 38 structures structure NNS 40404 4353 39 contained contain VBD 40404 4353 40 the the DT 40404 4353 41 possibility possibility NN 40404 4353 42 of of IN 40404 4353 43 development development NN 40404 4353 44 into into IN 40404 4353 45 the the DT 40404 4353 46 more more RBR 40404 4353 47 highly highly RB 40404 4353 48 organized organized JJ 40404 4353 49 land land NN 40404 4353 50 vertebrates vertebrate NNS 40404 4353 51 which which WDT 40404 4353 52 were be VBD 40404 4353 53 to to TO 40404 4353 54 rule rule VB 40404 4353 55 the the DT 40404 4353 56 earth earth NN 40404 4353 57 . . . 40404 4354 1 = = NFP 40404 4354 2 Teleosts.= Teleosts.= NNP 40404 4354 3 The the DT 40404 4354 4 great great JJ 40404 4354 5 group group NN 40404 4354 6 of of IN 40404 4354 7 fishes fish NNS 40404 4354 8 called call VBD 40404 4354 9 the the DT 40404 4354 10 teleosts teleost NNS 40404 4354 11 , , , 40404 4354 12 or or CC 40404 4354 13 those those DT 40404 4354 14 with with IN 40404 4354 15 complete complete JJ 40404 4354 16 bony bony NN 40404 4354 17 skeletons skeleton NNS 40404 4354 18 , , , 40404 4354 19 to to TO 40404 4354 20 which which WDT 40404 4354 21 most most JJS 40404 4354 22 modern modern JJ 40404 4354 23 fishes fish NNS 40404 4354 24 belong belong VBP 40404 4354 25 , , , 40404 4354 26 may may MD 40404 4354 27 be be VB 40404 4354 28 mentioned mention VBN 40404 4354 29 here here RB 40404 4354 30 , , , 40404 4354 31 although although IN 40404 4354 32 in in IN 40404 4354 33 the the DT 40404 4354 34 Devonian Devonian NNP 40404 4354 35 they -PRON- PRP 40404 4354 36 had have VBD 40404 4354 37 not not RB 40404 4354 38 yet yet RB 40404 4354 39 appeared appear VBN 40404 4354 40 . . . 40404 4355 1 The the DT 40404 4355 2 teleosts teleost NNS 40404 4355 3 are be VBP 40404 4355 4 a a DT 40404 4355 5 highly highly RB 40404 4355 6 specialized specialized JJ 40404 4355 7 type type NN 40404 4355 8 , , , 40404 4355 9 adapted adapt VBD 40404 4355 10 most most RBS 40404 4355 11 perfectly perfectly RB 40404 4355 12 to to IN 40404 4355 13 their -PRON- PRP$ 40404 4355 14 aquatic aquatic JJ 40404 4355 15 environment environment NN 40404 4355 16 . . . 40404 4356 1 Heavy heavy JJ 40404 4356 2 armor armor NN 40404 4356 3 has have VBZ 40404 4356 4 been be VBN 40404 4356 5 discarded discard VBN 40404 4356 6 , , , 40404 4356 7 and and CC 40404 4356 8 reliance reliance NN 40404 4356 9 is be VBZ 40404 4356 10 placed place VBN 40404 4356 11 instead instead RB 40404 4356 12 on on IN 40404 4356 13 swiftness swiftness NN 40404 4356 14 . . . 40404 4357 1 The the DT 40404 4357 2 skeleton skeleton NN 40404 4357 3 is be VBZ 40404 4357 4 completely completely RB 40404 4357 5 ossified ossified JJ 40404 4357 6 and and CC 40404 4357 7 the the DT 40404 4357 8 notochord notochord NN 40404 4357 9 removed remove VBN 40404 4357 10 . . . 40404 4358 1 The the DT 40404 4358 2 vertebræ vertebræ NN 40404 4358 3 have have VBP 40404 4358 4 been be VBN 40404 4358 5 economically economically RB 40404 4358 6 withdrawn withdraw VBN 40404 4358 7 from from IN 40404 4358 8 the the DT 40404 4358 9 tail tail NN 40404 4358 10 , , , 40404 4358 11 and and CC 40404 4358 12 the the DT 40404 4358 13 cartilaginous cartilaginous JJ 40404 4358 14 axis axi NNS 40404 4358 15 of of IN 40404 4358 16 the the DT 40404 4358 17 side side NN 40404 4358 18 fins fin NNS 40404 4358 19 has have VBZ 40404 4358 20 been be VBN 40404 4358 21 found find VBN 40404 4358 22 unnecessary unnecessary JJ 40404 4358 23 . . . 40404 4359 1 The the DT 40404 4359 2 air air NN 40404 4359 3 sac sac NN 40404 4359 4 has have VBZ 40404 4359 5 become become VBN 40404 4359 6 a a DT 40404 4359 7 swim swim NN 40404 4359 8 bladder bladder NN 40404 4359 9 . . . 40404 4360 1 In in IN 40404 4360 2 this this DT 40404 4360 3 complete complete JJ 40404 4360 4 specialization specialization NN 40404 4360 5 they -PRON- PRP 40404 4360 6 have have VBP 40404 4360 7 long long RB 40404 4360 8 since since IN 40404 4360 9 lost lose VBN 40404 4360 10 the the DT 40404 4360 11 possibility possibility NN 40404 4360 12 of of IN 40404 4360 13 evolving evolve VBG 40404 4360 14 into into IN 40404 4360 15 higher high JJR 40404 4360 16 types type NNS 40404 4360 17 . . . 40404 4361 1 It -PRON- PRP 40404 4361 2 is be VBZ 40404 4361 3 interesting interesting JJ 40404 4361 4 to to TO 40404 4361 5 note note VB 40404 4361 6 that that IN 40404 4361 7 the the DT 40404 4361 8 modern modern JJ 40404 4361 9 teleosts teleost NNS 40404 4361 10 in in IN 40404 4361 11 their -PRON- PRP$ 40404 4361 12 embryological embryological JJ 40404 4361 13 growth growth NN 40404 4361 14 pass pass VB 40404 4361 15 through through IN 40404 4361 16 the the DT 40404 4361 17 stages stage NNS 40404 4361 18 which which WDT 40404 4361 19 characterized characterize VBD 40404 4361 20 the the DT 40404 4361 21 maturity maturity NN 40404 4361 22 of of IN 40404 4361 23 their -PRON- PRP$ 40404 4361 24 Devonian Devonian NNP 40404 4361 25 ancestors ancestor NNS 40404 4361 26 ; ; : 40404 4361 27 their -PRON- PRP$ 40404 4361 28 skeleton skeleton NN 40404 4361 29 is be VBZ 40404 4361 30 cartilaginous cartilaginous JJ 40404 4361 31 and and CC 40404 4361 32 their -PRON- PRP$ 40404 4361 33 tail tail NN 40404 4361 34 fin fin NN 40404 4361 35 vertebrated vertebrate VBN 40404 4361 36 . . . 40404 4362 1 CHAPTER chapter NN 40404 4362 2 XIX XIX NNP 40404 4362 3 THE the DT 40404 4362 4 CARBONIFEROUS carboniferous JJ 40404 4362 5 The the DT 40404 4362 6 Carboniferous carboniferous JJ 40404 4362 7 system system NN 40404 4362 8 is be VBZ 40404 4362 9 so so RB 40404 4362 10 named name VBN 40404 4362 11 from from IN 40404 4362 12 the the DT 40404 4362 13 large large JJ 40404 4362 14 amount amount NN 40404 4362 15 of of IN 40404 4362 16 coal coal NN 40404 4362 17 which which WDT 40404 4362 18 it -PRON- PRP 40404 4362 19 contains contain VBZ 40404 4362 20 . . . 40404 4363 1 Other other JJ 40404 4363 2 systems system NNS 40404 4363 3 , , , 40404 4363 4 from from IN 40404 4363 5 the the DT 40404 4363 6 Devonian Devonian NNP 40404 4363 7 on on RP 40404 4363 8 , , , 40404 4363 9 are be VBP 40404 4363 10 coal coal NN 40404 4363 11 bearing bearing NN 40404 4363 12 also also RB 40404 4363 13 , , , 40404 4363 14 but but CC 40404 4363 15 none none NN 40404 4363 16 so so RB 40404 4363 17 richly richly RB 40404 4363 18 and and CC 40404 4363 19 to to TO 40404 4363 20 so so RB 40404 4363 21 wide wide VB 40404 4363 22 an an DT 40404 4363 23 extent extent NN 40404 4363 24 . . . 40404 4364 1 Never never RB 40404 4364 2 before before IN 40404 4364 3 or or CC 40404 4364 4 since since IN 40404 4364 5 have have VBP 40404 4364 6 the the DT 40404 4364 7 peculiar peculiar JJ 40404 4364 8 conditions condition NNS 40404 4364 9 been be VBN 40404 4364 10 so so RB 40404 4364 11 favorable favorable JJ 40404 4364 12 for for IN 40404 4364 13 the the DT 40404 4364 14 formation formation NN 40404 4364 15 of of IN 40404 4364 16 extensive extensive JJ 40404 4364 17 coal coal NN 40404 4364 18 deposits deposit NNS 40404 4364 19 . . . 40404 4365 1 With with IN 40404 4365 2 few few JJ 40404 4365 3 exceptions exception NNS 40404 4365 4 the the DT 40404 4365 5 Carboniferous carboniferous JJ 40404 4365 6 strata strata NN 40404 4365 7 rest rest NN 40404 4365 8 on on IN 40404 4365 9 those those DT 40404 4365 10 of of IN 40404 4365 11 the the DT 40404 4365 12 Devonian Devonian NNP 40404 4365 13 without without IN 40404 4365 14 any any DT 40404 4365 15 marked marked JJ 40404 4365 16 unconformity unconformity NN 40404 4365 17 ; ; : 40404 4365 18 the the DT 40404 4365 19 one one CD 40404 4365 20 period period NN 40404 4365 21 passed pass VBD 40404 4365 22 quietly quietly RB 40404 4365 23 into into IN 40404 4365 24 the the DT 40404 4365 25 other other JJ 40404 4365 26 , , , 40404 4365 27 with with IN 40404 4365 28 no no DT 40404 4365 29 great great JJ 40404 4365 30 physical physical JJ 40404 4365 31 disturbances disturbance NNS 40404 4365 32 . . . 40404 4366 1 The the DT 40404 4366 2 Carboniferous Carboniferous NNP 40404 4366 3 includes include VBZ 40404 4366 4 three three CD 40404 4366 5 distinct distinct JJ 40404 4366 6 series series NN 40404 4366 7 . . . 40404 4367 1 The the DT 40404 4367 2 lower low JJR 40404 4367 3 is be VBZ 40404 4367 4 called call VBN 40404 4367 5 the the DT 40404 4367 6 _ _ NNP 40404 4367 7 Mississippian Mississippian NNP 40404 4367 8 _ _ NNP 40404 4367 9 , , , 40404 4367 10 from from IN 40404 4367 11 the the DT 40404 4367 12 outcrop outcrop NN 40404 4367 13 of of IN 40404 4367 14 its -PRON- PRP$ 40404 4367 15 formations formation NNS 40404 4367 16 along along IN 40404 4367 17 the the DT 40404 4367 18 Mississippi Mississippi NNP 40404 4367 19 River River NNP 40404 4367 20 in in IN 40404 4367 21 central central JJ 40404 4367 22 and and CC 40404 4367 23 southern southern JJ 40404 4367 24 Illinois Illinois NNP 40404 4367 25 and and CC 40404 4367 26 the the DT 40404 4367 27 adjacent adjacent JJ 40404 4367 28 portions portion NNS 40404 4367 29 of of IN 40404 4367 30 Iowa Iowa NNP 40404 4367 31 and and CC 40404 4367 32 Missouri Missouri NNP 40404 4367 33 . . . 40404 4368 1 The the DT 40404 4368 2 middle middle JJ 40404 4368 3 series series NN 40404 4368 4 is be VBZ 40404 4368 5 called call VBN 40404 4368 6 the the DT 40404 4368 7 _ _ NNP 40404 4368 8 Pennsylvanian Pennsylvanian NNP 40404 4368 9 _ _ NNP 40404 4368 10 ( ( -LRB- 40404 4368 11 or or CC 40404 4368 12 Coal Coal NNP 40404 4368 13 Measures Measures NNPS 40404 4368 14 ) ) -RRB- 40404 4368 15 , , , 40404 4368 16 from from IN 40404 4368 17 its -PRON- PRP$ 40404 4368 18 wide wide JJ 40404 4368 19 occurrence occurrence NN 40404 4368 20 over over IN 40404 4368 21 Pennsylvania Pennsylvania NNP 40404 4368 22 . . . 40404 4369 1 The the DT 40404 4369 2 upper upper JJ 40404 4369 3 series series NN 40404 4369 4 is be VBZ 40404 4369 5 named name VBN 40404 4369 6 the the DT 40404 4369 7 _ _ NNP 40404 4369 8 Permian Permian NNP 40404 4369 9 _ _ NNP 40404 4369 10 , , , 40404 4369 11 from from IN 40404 4369 12 the the DT 40404 4369 13 province province NN 40404 4369 14 of of IN 40404 4369 15 Perm Perm NNP 40404 4369 16 in in IN 40404 4369 17 Russia Russia NNP 40404 4369 18 . . . 40404 4370 1 = = NFP 40404 4370 2 The the DT 40404 4370 3 Mississippian mississippian JJ 40404 4370 4 series.= series.= NN 40404 4370 5 In in IN 40404 4370 6 the the DT 40404 4370 7 interior interior NN 40404 4370 8 the the DT 40404 4370 9 Mississippian Mississippian NNP 40404 4370 10 is be VBZ 40404 4370 11 composed compose VBN 40404 4370 12 chiefly chiefly RB 40404 4370 13 of of IN 40404 4370 14 limestones limestone NNS 40404 4370 15 , , , 40404 4370 16 with with IN 40404 4370 17 some some DT 40404 4370 18 shales shale NNS 40404 4370 19 , , , 40404 4370 20 which which WDT 40404 4370 21 tell tell VBP 40404 4370 22 of of IN 40404 4370 23 a a DT 40404 4370 24 clear clear JJ 40404 4370 25 , , , 40404 4370 26 warm warm JJ 40404 4370 27 , , , 40404 4370 28 epicontinental epicontinental JJ 40404 4370 29 sea sea NN 40404 4370 30 swarming swarm VBG 40404 4370 31 with with IN 40404 4370 32 crinoids crinoid NNS 40404 4370 33 , , , 40404 4370 34 corals coral NNS 40404 4370 35 , , , 40404 4370 36 and and CC 40404 4370 37 shells shell NNS 40404 4370 38 , , , 40404 4370 39 and and CC 40404 4370 40 occasionally occasionally RB 40404 4370 41 clouded cloud VBN 40404 4370 42 with with IN 40404 4370 43 silt silt NN 40404 4370 44 from from IN 40404 4370 45 the the DT 40404 4370 46 land land NN 40404 4370 47 . . . 40404 4371 1 In in IN 40404 4371 2 the the DT 40404 4371 3 eastern eastern JJ 40404 4371 4 region region NN 40404 4371 5 , , , 40404 4371 6 New New NNP 40404 4371 7 York York NNP 40404 4371 8 had have VBD 40404 4371 9 been be VBN 40404 4371 10 added add VBN 40404 4371 11 by by IN 40404 4371 12 uplift uplift NN 40404 4371 13 to to IN 40404 4371 14 the the DT 40404 4371 15 Appalachian appalachian JJ 40404 4371 16 land land NN 40404 4371 17 which which WDT 40404 4371 18 now now RB 40404 4371 19 was be VBD 40404 4371 20 united united JJ 40404 4371 21 to to IN 40404 4371 22 the the DT 40404 4371 23 northern northern JJ 40404 4371 24 area area NN 40404 4371 25 . . . 40404 4372 1 From from IN 40404 4372 2 eastern eastern JJ 40404 4372 3 Pennsylvania Pennsylvania NNP 40404 4372 4 southward southward RB 40404 4372 5 there there EX 40404 4372 6 were be VBD 40404 4372 7 laid lay VBN 40404 4372 8 in in IN 40404 4372 9 a a DT 40404 4372 10 subsiding subsiding JJ 40404 4372 11 trough trough NN 40404 4372 12 , , , 40404 4372 13 first first RB 40404 4372 14 , , , 40404 4372 15 thick thick JJ 40404 4372 16 sandstones sandstone NNS 40404 4372 17 ( ( -LRB- 40404 4372 18 the the DT 40404 4372 19 Pocono Pocono NNP 40404 4372 20 sandstone sandstone NN 40404 4372 21 ) ) -RRB- 40404 4372 22 , , , 40404 4372 23 and and CC 40404 4372 24 later later RB 40404 4372 25 still still RB 40404 4372 26 heavier heavy JJR 40404 4372 27 shales,--the shales,--the NNP 40404 4372 28 two two CD 40404 4372 29 together together RB 40404 4372 30 reaching reach VBG 40404 4372 31 the the DT 40404 4372 32 thickness thickness NN 40404 4372 33 of of IN 40404 4372 34 four four CD 40404 4372 35 thousand thousand CD 40404 4372 36 feet foot NNS 40404 4372 37 and and CC 40404 4372 38 more more JJR 40404 4372 39 . . . 40404 4373 1 We -PRON- PRP 40404 4373 2 infer infer VBP 40404 4373 3 a a DT 40404 4373 4 renewed renew VBN 40404 4373 5 uplift uplift NN 40404 4373 6 of of IN 40404 4373 7 Appalachia Appalachia NNP 40404 4373 8 similar similar JJ 40404 4373 9 to to IN 40404 4373 10 that that DT 40404 4373 11 of of IN 40404 4373 12 the the DT 40404 4373 13 later later JJ 40404 4373 14 epochs epoch NNS 40404 4373 15 of of IN 40404 4373 16 the the DT 40404 4373 17 Devonian Devonian NNP 40404 4373 18 , , , 40404 4373 19 but but CC 40404 4373 20 as as RB 40404 4373 21 much much RB 40404 4373 22 less less JJR 40404 4373 23 in in IN 40404 4373 24 amount amount NN 40404 4373 25 as as IN 40404 4373 26 the the DT 40404 4373 27 volume volume NN 40404 4373 28 of of IN 40404 4373 29 sediments sediment NNS 40404 4373 30 is be VBZ 40404 4373 31 smaller small JJR 40404 4373 32 . . . 40404 4374 1 The the DT 40404 4374 2 Pennsylvanian Pennsylvanian NNP 40404 4374 3 Series Series NNP 40404 4374 4 The The NNP 40404 4374 5 Mississippian Mississippian NNP 40404 4374 6 was be VBD 40404 4374 7 brought bring VBN 40404 4374 8 to to IN 40404 4374 9 an an DT 40404 4374 10 end end NN 40404 4374 11 by by IN 40404 4374 12 a a DT 40404 4374 13 quiet quiet JJ 40404 4374 14 oscillation oscillation NN 40404 4374 15 which which WDT 40404 4374 16 lifted lift VBD 40404 4374 17 large large JJ 40404 4374 18 areas area NNS 40404 4374 19 slightly slightly RB 40404 4374 20 above above IN 40404 4374 21 the the DT 40404 4374 22 sea sea NN 40404 4374 23 , , , 40404 4374 24 and and CC 40404 4374 25 the the DT 40404 4374 26 Pennsylvanian Pennsylvanian NNP 40404 4374 27 began begin VBD 40404 4374 28 with with IN 40404 4374 29 a a DT 40404 4374 30 movement movement NN 40404 4374 31 in in IN 40404 4374 32 the the DT 40404 4374 33 opposite opposite JJ 40404 4374 34 direction direction NN 40404 4374 35 . . . 40404 4375 1 The the DT 40404 4375 2 sea sea NN 40404 4375 3 encroached encroach VBD 40404 4375 4 on on IN 40404 4375 5 the the DT 40404 4375 6 new new JJ 40404 4375 7 land land NN 40404 4375 8 , , , 40404 4375 9 and and CC 40404 4375 10 spread spread VBD 40404 4375 11 far far RB 40404 4375 12 and and CC 40404 4375 13 wide wide RB 40404 4375 14 a a DT 40404 4375 15 great great JJ 40404 4375 16 basal basal NN 40404 4375 17 conglomerate conglomerate NN 40404 4375 18 and and CC 40404 4375 19 coarse coarse JJ 40404 4375 20 sandstones sandstone NNS 40404 4375 21 . . . 40404 4376 1 On on IN 40404 4376 2 this this DT 40404 4376 3 ancient ancient JJ 40404 4376 4 beach beach NN 40404 4376 5 deposit deposit NN 40404 4376 6 a a DT 40404 4376 7 group group NN 40404 4376 8 of of IN 40404 4376 9 strata strata NN 40404 4376 10 rests rest NNS 40404 4376 11 which which WDT 40404 4376 12 we -PRON- PRP 40404 4376 13 must must MD 40404 4376 14 now now RB 40404 4376 15 interpret interpret VB 40404 4376 16 . . . 40404 4377 1 They -PRON- PRP 40404 4377 2 consist consist VBP 40404 4377 3 of of IN 40404 4377 4 alternating alternate VBG 40404 4377 5 shales shale NNS 40404 4377 6 and and CC 40404 4377 7 sandstones sandstone NNS 40404 4377 8 , , , 40404 4377 9 with with IN 40404 4377 10 here here RB 40404 4377 11 and and CC 40404 4377 12 there there RB 40404 4377 13 a a DT 40404 4377 14 bed bed NN 40404 4377 15 of of IN 40404 4377 16 limestone limestone NN 40404 4377 17 and and CC 40404 4377 18 an an DT 40404 4377 19 occasional occasional JJ 40404 4377 20 seam seam NN 40404 4377 21 of of IN 40404 4377 22 coal coal NN 40404 4377 23 . . . 40404 4378 1 A a DT 40404 4378 2 stratum stratum NN 40404 4378 3 of of IN 40404 4378 4 fire fire NN 40404 4378 5 clay clay NN 40404 4378 6 commonly commonly RB 40404 4378 7 underlies underlie VBZ 40404 4378 8 a a DT 40404 4378 9 coal coal NN 40404 4378 10 seam seam NN 40404 4378 11 , , , 40404 4378 12 and and CC 40404 4378 13 there there EX 40404 4378 14 occur occur VBP 40404 4378 15 also also RB 40404 4378 16 beds bed NNS 40404 4378 17 of of IN 40404 4378 18 iron iron NN 40404 4378 19 ore ore NN 40404 4378 20 . . . 40404 4378 21 We -PRON- PRP 40404 4378 22 give give VBP 40404 4378 23 a a DT 40404 4378 24 typical typical JJ 40404 4378 25 section section NN 40404 4378 26 of of IN 40404 4378 27 a a DT 40404 4378 28 very very RB 40404 4378 29 small small JJ 40404 4378 30 portion portion NN 40404 4378 31 of of IN 40404 4378 32 the the DT 40404 4378 33 series series NN 40404 4378 34 at at IN 40404 4378 35 a a DT 40404 4378 36 locality locality NN 40404 4378 37 in in IN 40404 4378 38 Pennsylvania Pennsylvania NNP 40404 4378 39 . . . 40404 4379 1 Although although IN 40404 4379 2 some some DT 40404 4379 3 of of IN 40404 4379 4 the the DT 40404 4379 5 minor minor JJ 40404 4379 6 changes change NNS 40404 4379 7 are be VBP 40404 4379 8 omitted omit VBN 40404 4379 9 , , , 40404 4379 10 the the DT 40404 4379 11 section section NN 40404 4379 12 shows show VBZ 40404 4379 13 the the DT 40404 4379 14 rapid rapid JJ 40404 4379 15 alternation alternation NN 40404 4379 16 of of IN 40404 4379 17 the the DT 40404 4379 18 strata strata NN 40404 4379 19 : : : 40404 4379 20 9 9 CD 40404 4379 21 Sandstone Sandstone NNP 40404 4379 22 and and CC 40404 4379 23 shale shale NN 40404 4379 24 ..... ..... NFP 40404 4379 25 25 25 CD 40404 4379 26 8 8 CD 40404 4379 27 Limestone limestone NN 40404 4379 28 ..... ..... NFP 40404 4379 29 18 18 CD 40404 4379 30 7 7 CD 40404 4379 31 Sandstone Sandstone NNP 40404 4379 32 ..... ..... NFP 40404 4379 33 10 10 CD 40404 4379 34 6 6 CD 40404 4379 35 Coal coal NN 40404 4379 36 ..... ..... NFP 40404 4379 37 1 1 CD 40404 4379 38 - - SYM 40404 4379 39 6 6 CD 40404 4379 40 5 5 CD 40404 4379 41 Shale Shale NNP 40404 4379 42 ..... ..... NFP 40404 4379 43 0 0 CD 40404 4379 44 - - SYM 40404 4379 45 2 2 CD 40404 4379 46 4 4 CD 40404 4379 47 Sandstone Sandstone NNP 40404 4379 48 ..... ..... NFP 40404 4379 49 40 40 CD 40404 4379 50 3 3 CD 40404 4379 51 Limestone Limestone NNP 40404 4379 52 ..... ..... NFP 40404 4379 53 10 10 CD 40404 4379 54 2 2 CD 40404 4379 55 Coal coal NN 40404 4379 56 ..... ..... NFP 40404 4379 57 5 5 CD 40404 4379 58 - - SYM 40404 4379 59 12 12 CD 40404 4379 60 1 1 CD 40404 4379 61 Fire fire NN 40404 4379 62 clay clay NN 40404 4379 63 ..... ..... NFP 40404 4379 64 3 3 CD 40404 4379 65 This this DT 40404 4379 66 section section NN 40404 4379 67 shows show VBZ 40404 4379 68 more more JJR 40404 4379 69 coal coal NN 40404 4379 70 than than IN 40404 4379 71 is be VBZ 40404 4379 72 usual usual JJ 40404 4379 73 ; ; : 40404 4379 74 on on IN 40404 4379 75 the the DT 40404 4379 76 whole whole JJ 40404 4379 77 , , , 40404 4379 78 coal coal NN 40404 4379 79 seams seam NNS 40404 4379 80 do do VBP 40404 4379 81 not not RB 40404 4379 82 take take VB 40404 4379 83 up up RP 40404 4379 84 more more JJR 40404 4379 85 than than IN 40404 4379 86 one one CD 40404 4379 87 foot foot NN 40404 4379 88 in in IN 40404 4379 89 fifty fifty CD 40404 4379 90 of of IN 40404 4379 91 the the DT 40404 4379 92 Coal Coal NNP 40404 4379 93 Measures Measures NNPS 40404 4379 94 . . . 40404 4380 1 They -PRON- PRP 40404 4380 2 vary vary VBP 40404 4380 3 also also RB 40404 4380 4 in in IN 40404 4380 5 thickness thickness NN 40404 4380 6 more more RBR 40404 4380 7 than than IN 40404 4380 8 is be VBZ 40404 4380 9 seen see VBN 40404 4380 10 in in IN 40404 4380 11 the the DT 40404 4380 12 section section NN 40404 4380 13 , , , 40404 4380 14 some some DT 40404 4380 15 exceptional exceptional JJ 40404 4380 16 seams seam NNS 40404 4380 17 reaching reach VBG 40404 4380 18 the the DT 40404 4380 19 thickness thickness NN 40404 4380 20 of of IN 40404 4380 21 fifty fifty CD 40404 4380 22 feet foot NNS 40404 4380 23 . . . 40404 4381 1 = = NFP 40404 4381 2 How how WRB 40404 4381 3 coal coal NN 40404 4381 4 was be VBD 40404 4381 5 made.= made.= CD 40404 4381 6 1 1 CD 40404 4381 7 . . . 40404 4382 1 Coal coal NN 40404 4382 2 is be VBZ 40404 4382 3 of of IN 40404 4382 4 vegetable vegetable NN 40404 4382 5 origin origin NN 40404 4382 6 . . . 40404 4383 1 Examined examine VBN 40404 4383 2 under under IN 40404 4383 3 the the DT 40404 4383 4 microscope microscope NN 40404 4383 5 even even RB 40404 4383 6 anthracite anthracite NN 40404 4383 7 , , , 40404 4383 8 or or CC 40404 4383 9 hard hard JJ 40404 4383 10 coal coal NN 40404 4383 11 , , , 40404 4383 12 is be VBZ 40404 4383 13 seen see VBN 40404 4383 14 to to TO 40404 4383 15 contain contain VB 40404 4383 16 carbonized carbonize VBN 40404 4383 17 vegetal vegetal JJ 40404 4383 18 tissues tissue NNS 40404 4383 19 . . . 40404 4384 1 There there EX 40404 4384 2 are be VBP 40404 4384 3 also also RB 40404 4384 4 all all DT 40404 4384 5 gradations gradation NNS 40404 4384 6 connecting connect VBG 40404 4384 7 the the DT 40404 4384 8 hardest hard JJS 40404 4384 9 anthracite anthracite NN 40404 4384 10 -- -- : 40404 4384 11 through through IN 40404 4384 12 semibituminous semibituminous JJ 40404 4384 13 coal coal NN 40404 4384 14 , , , 40404 4384 15 bituminous bituminous JJ 40404 4384 16 or or CC 40404 4384 17 soft soft JJ 40404 4384 18 coal coal NN 40404 4384 19 , , , 40404 4384 20 lignite lignite NNP 40404 4384 21 ( ( -LRB- 40404 4384 22 an an DT 40404 4384 23 imperfect imperfect JJ 40404 4384 24 coal coal NN 40404 4384 25 in in IN 40404 4384 26 which which WDT 40404 4384 27 sometimes sometimes RB 40404 4384 28 woody woody VBP 40404 4384 29 fibers fiber NNS 40404 4384 30 may may MD 40404 4384 31 be be VB 40404 4384 32 seen see VBN 40404 4384 33 little little JJ 40404 4384 34 changed)--with changed)--with NNP 40404 4384 35 peat peat NN 40404 4384 36 and and CC 40404 4384 37 decaying decay VBG 40404 4384 38 vegetable vegetable NN 40404 4384 39 tissues tissue NNS 40404 4384 40 . . . 40404 4385 1 Coal coal NN 40404 4385 2 is be VBZ 40404 4385 3 compressed compress VBN 40404 4385 4 and and CC 40404 4385 5 mineralized mineralize VBN 40404 4385 6 vegetal vegetal JJ 40404 4385 7 matter matter NN 40404 4385 8 . . . 40404 4386 1 Its -PRON- PRP$ 40404 4386 2 varieties variety NNS 40404 4386 3 depend depend VBP 40404 4386 4 on on IN 40404 4386 5 the the DT 40404 4386 6 perfection perfection NN 40404 4386 7 to to TO 40404 4386 8 which which WDT 40404 4386 9 the the DT 40404 4386 10 peculiar peculiar JJ 40404 4386 11 change change NN 40404 4386 12 called call VBN 40404 4386 13 bituminization bituminization NN 40404 4386 14 has have VBZ 40404 4386 15 been be VBN 40404 4386 16 carried carry VBN 40404 4386 17 , , , 40404 4386 18 and and CC 40404 4386 19 also also RB 40404 4386 20 , , , 40404 4386 21 as as IN 40404 4386 22 shown show VBN 40404 4386 23 in in IN 40404 4386 24 the the DT 40404 4386 25 table table NN 40404 4386 26 below below RB 40404 4386 27 , , , 40404 4386 28 on on IN 40404 4386 29 the the DT 40404 4386 30 degree degree NN 40404 4386 31 to to TO 40404 4386 32 which which WDT 40404 4386 33 the the DT 40404 4386 34 volatile volatile JJ 40404 4386 35 substances substance NNS 40404 4386 36 and and CC 40404 4386 37 water water NN 40404 4386 38 have have VBP 40404 4386 39 escaped escape VBN 40404 4386 40 , , , 40404 4386 41 and and CC 40404 4386 42 on on IN 40404 4386 43 the the DT 40404 4386 44 per per NN 40404 4386 45 cent cent NN 40404 4386 46 of of IN 40404 4386 47 carbon carbon NN 40404 4386 48 remaining remain VBG 40404 4386 49 . . . 40404 4387 1 Peat Peat NNP 40404 4387 2 Bituminous Bituminous NNP 40404 4387 3 Dismal Dismal NNP 40404 4387 4 Lignite Lignite NNP 40404 4387 5 Coal Coal NNP 40404 4387 6 Anthracite Anthracite NNP 40404 4387 7 Swamp Swamp NNP 40404 4387 8 Texas Texas NNP 40404 4387 9 Penn Penn NNP 40404 4387 10 . . . 40404 4388 1 Penn Penn NNP 40404 4388 2 . . . 40404 4389 1 Moisture moisture NN 40404 4389 2 78.89 78.89 CD 40404 4389 3 14.67 14.67 CD 40404 4389 4 1.30 1.30 CD 40404 4389 5 2.74 2.74 CD 40404 4389 6 Volatile volatile JJ 40404 4389 7 matter matter NN 40404 4389 8 13.84 13.84 CD 40404 4389 9 37.32 37.32 CD 40404 4389 10 20.87 20.87 CD 40404 4389 11 4.25 4.25 CD 40404 4389 12 Fixed fix VBN 40404 4389 13 carbon carbon NN 40404 4389 14 6.49 6.49 CD 40404 4389 15 41.07 41.07 CD 40404 4389 16 67.20 67.20 CD 40404 4389 17 81.51 81.51 CD 40404 4389 18 Ash Ash NNP 40404 4389 19 0.78 0.78 CD 40404 4389 20 6.69 6.69 CD 40404 4389 21 8.80 8.80 CD 40404 4389 22 10.87 10.87 CD 40404 4389 23 2 2 CD 40404 4389 24 . . . 40404 4390 1 The the DT 40404 4390 2 vegetable vegetable NN 40404 4390 3 remains remain VBZ 40404 4390 4 associated associate VBN 40404 4390 5 with with IN 40404 4390 6 coal coal NN 40404 4390 7 are be VBP 40404 4390 8 those those DT 40404 4390 9 of of IN 40404 4390 10 land land NN 40404 4390 11 plants plant NNS 40404 4390 12 . . . 40404 4391 1 3 3 LS 40404 4391 2 . . . 40404 4392 1 Coal coal NN 40404 4392 2 accumulated accumulate VBN 40404 4392 3 in in IN 40404 4392 4 the the DT 40404 4392 5 presence presence NN 40404 4392 6 of of IN 40404 4392 7 water water NN 40404 4392 8 ; ; : 40404 4392 9 for for IN 40404 4392 10 it -PRON- PRP 40404 4392 11 is be VBZ 40404 4392 12 only only RB 40404 4392 13 when when WRB 40404 4392 14 thus thus RB 40404 4392 15 protected protect VBN 40404 4392 16 from from IN 40404 4392 17 the the DT 40404 4392 18 air air NN 40404 4392 19 that that IN 40404 4392 20 vegetal vegetal JJ 40404 4392 21 matter matter NN 40404 4392 22 is be VBZ 40404 4392 23 preserved preserve VBN 40404 4392 24 . . . 40404 4393 1 4 4 LS 40404 4393 2 . . . 40404 4394 1 The the DT 40404 4394 2 vegetation vegetation NN 40404 4394 3 of of IN 40404 4394 4 coal coal NN 40404 4394 5 accumulated accumulate VBN 40404 4394 6 for for IN 40404 4394 7 the the DT 40404 4394 8 most most JJS 40404 4394 9 part part NN 40404 4394 10 where where WRB 40404 4394 11 it -PRON- PRP 40404 4394 12 grew grow VBD 40404 4394 13 ; ; : 40404 4394 14 it -PRON- PRP 40404 4394 15 was be VBD 40404 4394 16 not not RB 40404 4394 17 generally generally RB 40404 4394 18 drifted drift VBN 40404 4394 19 and and CC 40404 4394 20 deposited deposit VBN 40404 4394 21 by by IN 40404 4394 22 waves wave NNS 40404 4394 23 and and CC 40404 4394 24 currents current NNS 40404 4394 25 . . . 40404 4395 1 Commonly commonly RB 40404 4395 2 the the DT 40404 4395 3 fire fire NN 40404 4395 4 clay clay NN 40404 4395 5 beneath beneath IN 40404 4395 6 the the DT 40404 4395 7 seam seam NN 40404 4395 8 is be VBZ 40404 4395 9 penetrated penetrate VBN 40404 4395 10 with with IN 40404 4395 11 roots root NNS 40404 4395 12 , , , 40404 4395 13 and and CC 40404 4395 14 the the DT 40404 4395 15 shale shale NN 40404 4395 16 above above RB 40404 4395 17 is be VBZ 40404 4395 18 packed pack VBN 40404 4395 19 with with IN 40404 4395 20 leaves leave NNS 40404 4395 21 of of IN 40404 4395 22 ferns fern NNS 40404 4395 23 and and CC 40404 4395 24 other other JJ 40404 4395 25 plants plant NNS 40404 4395 26 as as IN 40404 4395 27 beautifully beautifully RB 40404 4395 28 pressed press VBD 40404 4395 29 as as IN 40404 4395 30 in in IN 40404 4395 31 a a DT 40404 4395 32 herbarium herbarium NN 40404 4395 33 . . . 40404 4396 1 There there EX 40404 4396 2 often often RB 40404 4396 3 is be VBZ 40404 4396 4 associated associate VBN 40404 4396 5 with with IN 40404 4396 6 the the DT 40404 4396 7 seam seam NN 40404 4396 8 a a DT 40404 4396 9 fossil fossil NN 40404 4396 10 forest forest NN 40404 4396 11 , , , 40404 4396 12 with with IN 40404 4396 13 the the DT 40404 4396 14 stumps stump NNS 40404 4396 15 , , , 40404 4396 16 which which WDT 40404 4396 17 are be VBP 40404 4396 18 still still RB 40404 4396 19 standing stand VBG 40404 4396 20 where where WRB 40404 4396 21 they -PRON- PRP 40404 4396 22 grew grow VBD 40404 4396 23 , , , 40404 4396 24 their -PRON- PRP$ 40404 4396 25 spreading spread VBG 40404 4396 26 roots root NNS 40404 4396 27 , , , 40404 4396 28 and and CC 40404 4396 29 the the DT 40404 4396 30 soil soil NN 40404 4396 31 beneath beneath IN 40404 4396 32 , , , 40404 4396 33 all all DT 40404 4396 34 changed change VBD 40404 4396 35 to to IN 40404 4396 36 stone stone NN 40404 4396 37 . . . 40404 4397 1 In in IN 40404 4397 2 the the DT 40404 4397 3 Nova Nova NNP 40404 4397 4 Scotia Scotia NNP 40404 4397 5 field field NN 40404 4397 6 , , , 40404 4397 7 out out IN 40404 4397 8 of of IN 40404 4397 9 seventy seventy CD 40404 4397 10 - - HYPH 40404 4397 11 six six CD 40404 4397 12 distinct distinct JJ 40404 4397 13 coal coal NN 40404 4397 14 seams seam NNS 40404 4397 15 , , , 40404 4397 16 twenty twenty CD 40404 4397 17 are be VBP 40404 4397 18 underlain underlain JJ 40404 4397 19 by by IN 40404 4397 20 old old JJ 40404 4397 21 forest forest NN 40404 4397 22 grounds ground NNS 40404 4397 23 . . . 40404 4398 1 The the DT 40404 4398 2 presence presence NN 40404 4398 3 of of IN 40404 4398 4 fire fire NN 40404 4398 5 clay clay NN 40404 4398 6 beneath beneath IN 40404 4398 7 a a DT 40404 4398 8 seam seam NN 40404 4398 9 points point VBZ 40404 4398 10 in in IN 40404 4398 11 the the DT 40404 4398 12 same same JJ 40404 4398 13 direction direction NN 40404 4398 14 . . . 40404 4399 1 Such such JJ 40404 4399 2 underclays underclay NNS 40404 4399 3 withstand withstand VBP 40404 4399 4 intense intense JJ 40404 4399 5 heat heat NN 40404 4399 6 and and CC 40404 4399 7 are be VBP 40404 4399 8 used use VBN 40404 4399 9 in in IN 40404 4399 10 making make VBG 40404 4399 11 fire fire NN 40404 4399 12 brick brick NN 40404 4399 13 , , , 40404 4399 14 because because IN 40404 4399 15 their -PRON- PRP$ 40404 4399 16 alkalies alkali NNS 40404 4399 17 have have VBP 40404 4399 18 been be VBN 40404 4399 19 removed remove VBN 40404 4399 20 by by IN 40404 4399 21 the the DT 40404 4399 22 long long RB 40404 4399 23 - - HYPH 40404 4399 24 continued continue VBN 40404 4399 25 growth growth NN 40404 4399 26 of of IN 40404 4399 27 vegetation vegetation NN 40404 4399 28 . . . 40404 4400 1 Fuel fuel NN 40404 4400 2 coal coal NN 40404 4400 3 is be VBZ 40404 4400 4 also also RB 40404 4400 5 too too RB 40404 4400 6 pure pure JJ 40404 4400 7 to to TO 40404 4400 8 have have VB 40404 4400 9 been be VBN 40404 4400 10 accumulated accumulate VBN 40404 4400 11 by by IN 40404 4400 12 driftage driftage NN 40404 4400 13 . . . 40404 4401 1 In in IN 40404 4401 2 that that DT 40404 4401 3 case case NN 40404 4401 4 we -PRON- PRP 40404 4401 5 should should MD 40404 4401 6 expect expect VB 40404 4401 7 to to TO 40404 4401 8 find find VB 40404 4401 9 it -PRON- PRP 40404 4401 10 mixed mixed JJ 40404 4401 11 with with IN 40404 4401 12 mud mud NN 40404 4401 13 , , , 40404 4401 14 while while IN 40404 4401 15 in in IN 40404 4401 16 fact fact NN 40404 4401 17 it -PRON- PRP 40404 4401 18 often often RB 40404 4401 19 contains contain VBZ 40404 4401 20 no no DT 40404 4401 21 more more JJR 40404 4401 22 ash ash NN 40404 4401 23 than than IN 40404 4401 24 the the DT 40404 4401 25 vegetal vegetal JJ 40404 4401 26 matter matter NN 40404 4401 27 would would MD 40404 4401 28 furnish furnish VB 40404 4401 29 from from IN 40404 4401 30 which which WDT 40404 4401 31 it -PRON- PRP 40404 4401 32 has have VBZ 40404 4401 33 been be VBN 40404 4401 34 compressed compress VBN 40404 4401 35 . . . 40404 4402 1 [ [ -LRB- 40404 4402 2 Illustration illustration NN 40404 4402 3 : : : 40404 4402 4 Fig Fig NNP 40404 4402 5 . . . 40404 4403 1 303 303 CD 40404 4403 2 . . . 40404 4404 1 Fossil Fossil NNP 40404 4404 2 Tree Tree NNP 40404 4404 3 Stumps Stumps NNP 40404 4404 4 of of IN 40404 4404 5 a a DT 40404 4404 6 Carboniferous Carboniferous NNP 40404 4404 7 Forest Forest NNP 40404 4404 8 , , , 40404 4404 9 Scotland Scotland NNP 40404 4404 10 ] ] -RRB- 40404 4404 11 These these DT 40404 4404 12 conditions condition NNS 40404 4404 13 are be VBP 40404 4404 14 fairly fairly RB 40404 4404 15 met meet VBN 40404 4404 16 in in IN 40404 4404 17 the the DT 40404 4404 18 great great JJ 40404 4404 19 swamps swamp NNS 40404 4404 20 of of IN 40404 4404 21 river river NN 40404 4404 22 plains plain NNS 40404 4404 23 and and CC 40404 4404 24 deltas delta NNS 40404 4404 25 and and CC 40404 4404 26 of of IN 40404 4404 27 coastal coastal JJ 40404 4404 28 plains plain NNS 40404 4404 29 , , , 40404 4404 30 such such JJ 40404 4404 31 as as IN 40404 4404 32 the the DT 40404 4404 33 great great JJ 40404 4404 34 Dismal Dismal NNP 40404 4404 35 Swamp Swamp NNP 40404 4404 36 , , , 40404 4404 37 where where WRB 40404 4404 38 thousands thousand NNS 40404 4404 39 of of IN 40404 4404 40 generations generation NNS 40404 4404 41 of of IN 40404 4404 42 forests forest NNS 40404 4404 43 with with IN 40404 4404 44 their -PRON- PRP$ 40404 4404 45 undergrowths undergrowth NNS 40404 4404 46 contribute contribute VBP 40404 4404 47 their -PRON- PRP$ 40404 4404 48 stems stem NNS 40404 4404 49 and and CC 40404 4404 50 leaves leave NNS 40404 4404 51 to to TO 40404 4404 52 form form VB 40404 4404 53 thick thick JJ 40404 4404 54 beds bed NNS 40404 4404 55 of of IN 40404 4404 56 peat peat NN 40404 4404 57 . . . 40404 4405 1 A a DT 40404 4405 2 coal coal NN 40404 4405 3 seam seam NN 40404 4405 4 is be VBZ 40404 4405 5 a a DT 40404 4405 6 fossil fossil JJ 40404 4405 7 peat peat NN 40404 4405 8 bed bed NN 40404 4405 9 . . . 40404 4406 1 = = NFP 40404 4406 2 Geographical geographical JJ 40404 4406 3 conditions condition NNS 40404 4406 4 during during IN 40404 4406 5 the the DT 40404 4406 6 Pennsylvanian.= Pennsylvanian.= NNP 40404 4406 7 The the DT 40404 4406 8 Carboniferous carboniferous JJ 40404 4406 9 peat peat NN 40404 4406 10 swamps swamp NNS 40404 4406 11 were be VBD 40404 4406 12 of of IN 40404 4406 13 vast vast JJ 40404 4406 14 extent extent NN 40404 4406 15 . . . 40404 4407 1 A a DT 40404 4407 2 map map NN 40404 4407 3 of of IN 40404 4407 4 the the DT 40404 4407 5 Coal Coal NNP 40404 4407 6 Measures Measures NNPS 40404 4407 7 ( ( -LRB- 40404 4407 8 Fig fig NN 40404 4407 9 . . . 40404 4408 1 260 260 CD 40404 4408 2 ) ) -RRB- 40404 4408 3 shows show VBZ 40404 4408 4 that that IN 40404 4408 5 the the DT 40404 4408 6 coal coal NN 40404 4408 7 marshes marsh NNS 40404 4408 8 stretched stretch VBD 40404 4408 9 , , , 40404 4408 10 with with IN 40404 4408 11 various various JJ 40404 4408 12 interruptions interruption NNS 40404 4408 13 of of IN 40404 4408 14 higher high JJR 40404 4408 15 ground ground NN 40404 4408 16 and and CC 40404 4408 17 straits strait NNS 40404 4408 18 of of IN 40404 4408 19 open open JJ 40404 4408 20 water water NN 40404 4408 21 , , , 40404 4408 22 from from IN 40404 4408 23 eastern eastern JJ 40404 4408 24 Pennsylvania Pennsylvania NNP 40404 4408 25 into into IN 40404 4408 26 Alabama Alabama NNP 40404 4408 27 , , , 40404 4408 28 Texas Texas NNP 40404 4408 29 , , , 40404 4408 30 and and CC 40404 4408 31 Kansas Kansas NNP 40404 4408 32 . . . 40404 4409 1 Some some DT 40404 4409 2 individual individual JJ 40404 4409 3 coal coal NN 40404 4409 4 beds bed NNS 40404 4409 5 may may MD 40404 4409 6 still still RB 40404 4409 7 be be VB 40404 4409 8 traced trace VBN 40404 4409 9 over over IN 40404 4409 10 a a DT 40404 4409 11 thousand thousand CD 40404 4409 12 square square JJ 40404 4409 13 miles mile NNS 40404 4409 14 , , , 40404 4409 15 despite despite IN 40404 4409 16 the the DT 40404 4409 17 erosion erosion NN 40404 4409 18 which which WDT 40404 4409 19 they -PRON- PRP 40404 4409 20 have have VBP 40404 4409 21 suffered suffer VBN 40404 4409 22 . . . 40404 4410 1 It -PRON- PRP 40404 4410 2 taxes tax VBZ 40404 4410 3 the the DT 40404 4410 4 imagination imagination NN 40404 4410 5 to to TO 40404 4410 6 conceive conceive VB 40404 4410 7 that that IN 40404 4410 8 the the DT 40404 4410 9 varied varied JJ 40404 4410 10 region region NN 40404 4410 11 included include VBN 40404 4410 12 within within IN 40404 4410 13 these these DT 40404 4410 14 limits limit NNS 40404 4410 15 was be VBD 40404 4410 16 for for IN 40404 4410 17 hundreds hundred NNS 40404 4410 18 of of IN 40404 4410 19 thousands thousand NNS 40404 4410 20 of of IN 40404 4410 21 years year NNS 40404 4410 22 a a DT 40404 4410 23 marshy marshy JJ 40404 4410 24 plain plain JJ 40404 4410 25 covered cover VBN 40404 4410 26 with with IN 40404 4410 27 tropical tropical JJ 40404 4410 28 jungles jungle NNS 40404 4410 29 such such JJ 40404 4410 30 as as IN 40404 4410 31 that that DT 40404 4410 32 pictured picture VBN 40404 4410 33 in in IN 40404 4410 34 Figure Figure NNP 40404 4410 35 304 304 CD 40404 4410 36 . . . 40404 4411 1 On on IN 40404 4411 2 the the DT 40404 4411 3 basis basis NN 40404 4411 4 that that WDT 40404 4411 5 peat peat NN 40404 4411 6 loses lose VBZ 40404 4411 7 four four CD 40404 4411 8 fifths fifth NNS 40404 4411 9 of of IN 40404 4411 10 its -PRON- PRP$ 40404 4411 11 bulk bulk NN 40404 4411 12 in in IN 40404 4411 13 changing change VBG 40404 4411 14 to to IN 40404 4411 15 coal coal NN 40404 4411 16 , , , 40404 4411 17 we -PRON- PRP 40404 4411 18 may may MD 40404 4411 19 reckon reckon VB 40404 4411 20 the the DT 40404 4411 21 thickness thickness NN 40404 4411 22 of of IN 40404 4411 23 these these DT 40404 4411 24 ancient ancient JJ 40404 4411 25 peat peat NN 40404 4411 26 beds bed NNS 40404 4411 27 . . . 40404 4412 1 Coal coal NN 40404 4412 2 seams seam VBZ 40404 4412 3 six six CD 40404 4412 4 and and CC 40404 4412 5 ten ten CD 40404 4412 6 feet foot NNS 40404 4412 7 thick thick JJ 40404 4412 8 , , , 40404 4412 9 which which WDT 40404 4412 10 are be VBP 40404 4412 11 not not RB 40404 4412 12 uncommon uncommon JJ 40404 4412 13 , , , 40404 4412 14 represent represent VBP 40404 4412 15 peat peat NN 40404 4412 16 beds bed VBZ 40404 4412 17 thirty thirty CD 40404 4412 18 and and CC 40404 4412 19 fifty fifty CD 40404 4412 20 feet foot NNS 40404 4412 21 in in IN 40404 4412 22 thickness thickness NN 40404 4412 23 , , , 40404 4412 24 while while IN 40404 4412 25 mammoth mammoth JJ 40404 4412 26 coal coal NN 40404 4412 27 seams seam VBZ 40404 4412 28 fifty fifty CD 40404 4412 29 feet foot NNS 40404 4412 30 thick thick JJ 40404 4412 31 have have VBP 40404 4412 32 been be VBN 40404 4412 33 compressed compress VBN 40404 4412 34 from from IN 40404 4412 35 peat peat NN 40404 4412 36 beds bed NNS 40404 4412 37 two two CD 40404 4412 38 hundred hundred CD 40404 4412 39 and and CC 40404 4412 40 fifty fifty CD 40404 4412 41 feet foot NNS 40404 4412 42 deep deep JJ 40404 4412 43 . . . 40404 4413 1 At at IN 40404 4413 2 the the DT 40404 4413 3 same same JJ 40404 4413 4 time time NN 40404 4413 5 , , , 40404 4413 6 the the DT 40404 4413 7 thousands thousand NNS 40404 4413 8 of of IN 40404 4413 9 feet foot NNS 40404 4413 10 of of IN 40404 4413 11 marine marine JJ 40404 4413 12 and and CC 40404 4413 13 fresh fresh JJ 40404 4413 14 - - HYPH 40404 4413 15 water water NN 40404 4413 16 sediments sediment NNS 40404 4413 17 , , , 40404 4413 18 with with IN 40404 4413 19 their -PRON- PRP$ 40404 4413 20 repeated repeat VBN 40404 4413 21 alternations alternation NNS 40404 4413 22 of of IN 40404 4413 23 limestones limestone NNS 40404 4413 24 , , , 40404 4413 25 sandstones sandstone NNS 40404 4413 26 , , , 40404 4413 27 and and CC 40404 4413 28 shales shale NNS 40404 4413 29 , , , 40404 4413 30 in in IN 40404 4413 31 which which WDT 40404 4413 32 the the DT 40404 4413 33 seams seam NNS 40404 4413 34 of of IN 40404 4413 35 coal coal NN 40404 4413 36 occur occur VBP 40404 4413 37 , , , 40404 4413 38 prove prove VB 40404 4413 39 a a DT 40404 4413 40 slow slow JJ 40404 4413 41 subsidence subsidence NN 40404 4413 42 , , , 40404 4413 43 with with IN 40404 4413 44 many many JJ 40404 4413 45 changes change NNS 40404 4413 46 in in IN 40404 4413 47 its -PRON- PRP$ 40404 4413 48 rate rate NN 40404 4413 49 , , , 40404 4413 50 with with IN 40404 4413 51 halts halt NNS 40404 4413 52 when when WRB 40404 4413 53 the the DT 40404 4413 54 land land NN 40404 4413 55 was be VBD 40404 4413 56 at at IN 40404 4413 57 a a DT 40404 4413 58 stillstand stillstand NN 40404 4413 59 , , , 40404 4413 60 and and CC 40404 4413 61 with with IN 40404 4413 62 occasional occasional JJ 40404 4413 63 movements movement NNS 40404 4413 64 upward upward RB 40404 4413 65 . . . 40404 4414 1 When when WRB 40404 4414 2 subsidence subsidence NN 40404 4414 3 was be VBD 40404 4414 4 most most RBS 40404 4414 5 rapid rapid JJ 40404 4414 6 and and CC 40404 4414 7 long long JJ 40404 4414 8 continued continue VBD 40404 4414 9 the the DT 40404 4414 10 sea sea NN 40404 4414 11 encroached encroach VBN 40404 4414 12 far far RB 40404 4414 13 and and CC 40404 4414 14 wide wide RB 40404 4414 15 upon upon IN 40404 4414 16 the the DT 40404 4414 17 lowlands lowland NNS 40404 4414 18 and and CC 40404 4414 19 covered cover VBD 40404 4414 20 the the DT 40404 4414 21 coal coal NN 40404 4414 22 swamps swamp NNS 40404 4414 23 with with IN 40404 4414 24 sands sand NNS 40404 4414 25 and and CC 40404 4414 26 muds mud NNS 40404 4414 27 and and CC 40404 4414 28 limy limy NNP 40404 4414 29 oozes ooze NNS 40404 4414 30 . . . 40404 4415 1 When when WRB 40404 4415 2 subsidence subsidence NN 40404 4415 3 slackened slacken VBD 40404 4415 4 or or CC 40404 4415 5 ceased cease VBD 40404 4415 6 the the DT 40404 4415 7 land land NN 40404 4415 8 gained gain VBN 40404 4415 9 on on IN 40404 4415 10 the the DT 40404 4415 11 sea sea NN 40404 4415 12 . . . 40404 4416 1 Bays bay NNS 40404 4416 2 were be VBD 40404 4416 3 barred bar VBN 40404 4416 4 , , , 40404 4416 5 and and CC 40404 4416 6 lagoons lagoon NNS 40404 4416 7 as as IN 40404 4416 8 they -PRON- PRP 40404 4416 9 gradually gradually RB 40404 4416 10 filled fill VBD 40404 4416 11 with with IN 40404 4416 12 mud mud NN 40404 4416 13 became become VBD 40404 4416 14 marshes marsh NNS 40404 4416 15 . . . 40404 4417 1 River River NNP 40404 4417 2 deltas delta NNS 40404 4417 3 pushed push VBD 40404 4417 4 forward forward RB 40404 4417 5 , , , 40404 4417 6 burying bury VBG 40404 4417 7 with with IN 40404 4417 8 their -PRON- PRP$ 40404 4417 9 silts silt NNS 40404 4417 10 the the DT 40404 4417 11 sunken sunken JJ 40404 4417 12 peat peat NN 40404 4417 13 beds bed NNS 40404 4417 14 of of IN 40404 4417 15 earlier early JJR 40404 4417 16 centuries century NNS 40404 4417 17 , , , 40404 4417 18 and and CC 40404 4417 19 at at IN 40404 4417 20 the the DT 40404 4417 21 surface surface NN 40404 4417 22 emerged emerge VBD 40404 4417 23 in in IN 40404 4417 24 broad broad JJ 40404 4417 25 , , , 40404 4417 26 swampy swampy JJ 40404 4417 27 flats,--like flats,--like IN 40404 4417 28 those those DT 40404 4417 29 of of IN 40404 4417 30 the the DT 40404 4417 31 deltas delta NNS 40404 4417 32 of of IN 40404 4417 33 the the DT 40404 4417 34 Mississippi Mississippi NNP 40404 4417 35 and and CC 40404 4417 36 the the DT 40404 4417 37 Ganges,--which ganges,--which NN 40404 4417 38 soon soon RB 40404 4417 39 were be VBD 40404 4417 40 covered cover VBN 40404 4417 41 with with IN 40404 4417 42 luxuriant luxuriant JJ 40404 4417 43 forests forest NNS 40404 4417 44 . . . 40404 4418 1 At at IN 40404 4418 2 times time NNS 40404 4418 3 a a DT 40404 4418 4 gentle gentle JJ 40404 4418 5 uplift uplift NN 40404 4418 6 brought bring VBN 40404 4418 7 to to IN 40404 4418 8 sea sea NN 40404 4418 9 level level NN 40404 4418 10 great great JJ 40404 4418 11 coastal coastal JJ 40404 4418 12 plains plain NNS 40404 4418 13 , , , 40404 4418 14 which which WDT 40404 4418 15 for for IN 40404 4418 16 ages age NNS 40404 4418 17 remained remain VBD 40404 4418 18 mantled mantle VBN 40404 4418 19 with with IN 40404 4418 20 the the DT 40404 4418 21 jungle jungle NN 40404 4418 22 , , , 40404 4418 23 their -PRON- PRP$ 40404 4418 24 undeveloped undeveloped JJ 40404 4418 25 drainage drainage NN 40404 4418 26 clogged clog VBN 40404 4418 27 with with IN 40404 4418 28 its -PRON- PRP$ 40404 4418 29 debris debris NN 40404 4418 30 , , , 40404 4418 31 and and CC 40404 4418 32 were be VBD 40404 4418 33 then then RB 40404 4418 34 again again RB 40404 4418 35 submerged submerge VBN 40404 4418 36 . . . 40404 4419 1 [ [ -LRB- 40404 4419 2 Illustration illustration NN 40404 4419 3 : : : 40404 4419 4 Fig Fig NNP 40404 4419 5 . . . 40404 4420 1 304 304 CD 40404 4420 2 . . . 40404 4421 1 Ideal Ideal NNP 40404 4421 2 Landscape Landscape NNP 40404 4421 3 of of IN 40404 4421 4 the the DT 40404 4421 5 Pennsylvanian Pennsylvanian NNP 40404 4421 6 Epoch Epoch NNP 40404 4421 7 ] ] -RRB- 40404 4421 8 = = NFP 40404 4421 9 Physical physical JJ 40404 4421 10 geography geography NN 40404 4421 11 of of IN 40404 4421 12 the the DT 40404 4421 13 several several JJ 40404 4421 14 regions.= regions.= CD 40404 4421 15 _ _ NNP 40404 4421 16 The the DT 40404 4421 17 Acadian acadian JJ 40404 4421 18 region region NN 40404 4421 19 _ _ NNP 40404 4421 20 lay lie VBD 40404 4421 21 on on IN 40404 4421 22 the the DT 40404 4421 23 eastern eastern JJ 40404 4421 24 side side NN 40404 4421 25 of of IN 40404 4421 26 the the DT 40404 4421 27 northern northern JJ 40404 4421 28 land land NN 40404 4421 29 , , , 40404 4421 30 where where WRB 40404 4421 31 now now RB 40404 4421 32 are be VBP 40404 4421 33 New New NNP 40404 4421 34 Brunswick Brunswick NNP 40404 4421 35 and and CC 40404 4421 36 Nova Nova NNP 40404 4421 37 Scotia Scotia NNP 40404 4421 38 , , , 40404 4421 39 and and CC 40404 4421 40 was be VBD 40404 4421 41 an an DT 40404 4421 42 immense immense JJ 40404 4421 43 river river NN 40404 4421 44 delta delta NN 40404 4421 45 . . . 40404 4422 1 Here here RB 40404 4422 2 river river NN 40404 4422 3 deposits deposit NNS 40404 4422 4 rich rich JJ 40404 4422 5 in in IN 40404 4422 6 coal coal NN 40404 4422 7 accumulated accumulate VBN 40404 4422 8 to to IN 40404 4422 9 a a DT 40404 4422 10 depth depth NN 40404 4422 11 of of IN 40404 4422 12 sixteen sixteen CD 40404 4422 13 thousand thousand CD 40404 4422 14 feet foot NNS 40404 4422 15 . . . 40404 4423 1 The the DT 40404 4423 2 area area NN 40404 4423 3 of of IN 40404 4423 4 this this DT 40404 4423 5 coal coal NN 40404 4423 6 field field NN 40404 4423 7 is be VBZ 40404 4423 8 estimated estimate VBN 40404 4423 9 at at IN 40404 4423 10 about about RB 40404 4423 11 thirty thirty CD 40404 4423 12 - - HYPH 40404 4423 13 six six CD 40404 4423 14 thousand thousand CD 40404 4423 15 square square JJ 40404 4423 16 miles mile NNS 40404 4423 17 . . . 40404 4424 1 _ _ NNP 40404 4424 2 The the DT 40404 4424 3 Appalachian appalachian JJ 40404 4424 4 region region NN 40404 4424 5 _ _ NNP 40404 4424 6 skirts skirt VBZ 40404 4424 7 the the DT 40404 4424 8 Appalachian appalachian JJ 40404 4424 9 oldland oldland NN 40404 4424 10 on on IN 40404 4424 11 the the DT 40404 4424 12 west west NN 40404 4424 13 from from IN 40404 4424 14 the the DT 40404 4424 15 southern southern JJ 40404 4424 16 boundary boundary NN 40404 4424 17 of of IN 40404 4424 18 New New NNP 40404 4424 19 York York NNP 40404 4424 20 to to IN 40404 4424 21 northern northern JJ 40404 4424 22 Alabama Alabama NNP 40404 4424 23 , , , 40404 4424 24 extending extend VBG 40404 4424 25 west west NN 40404 4424 26 into into IN 40404 4424 27 eastern eastern JJ 40404 4424 28 Ohio Ohio NNP 40404 4424 29 . . . 40404 4425 1 The the DT 40404 4425 2 Cincinnati Cincinnati NNP 40404 4425 3 anticline anticline NN 40404 4425 4 was be VBD 40404 4425 5 now now RB 40404 4425 6 a a DT 40404 4425 7 peninsula peninsula NN 40404 4425 8 , , , 40404 4425 9 and and CC 40404 4425 10 the the DT 40404 4425 11 broad broad JJ 40404 4425 12 gulf gulf NNP 40404 4425 13 which which WDT 40404 4425 14 had have VBD 40404 4425 15 lain lain NN 40404 4425 16 between between IN 40404 4425 17 it -PRON- PRP 40404 4425 18 and and CC 40404 4425 19 Appalachia Appalachia NNP 40404 4425 20 was be VBD 40404 4425 21 transformed transform VBN 40404 4425 22 at at IN 40404 4425 23 the the DT 40404 4425 24 beginning beginning NN 40404 4425 25 of of IN 40404 4425 26 the the DT 40404 4425 27 Pennsylvanian Pennsylvanian NNP 40404 4425 28 into into IN 40404 4425 29 wide wide JJ 40404 4425 30 marshy marshy NN 40404 4425 31 plains plain NNS 40404 4425 32 , , , 40404 4425 33 now now RB 40404 4425 34 sinking sink VBG 40404 4425 35 beneath beneath IN 40404 4425 36 the the DT 40404 4425 37 sea sea NN 40404 4425 38 and and CC 40404 4425 39 now now RB 40404 4425 40 emerging emerge VBG 40404 4425 41 from from IN 40404 4425 42 it -PRON- PRP 40404 4425 43 . . . 40404 4426 1 This this DT 40404 4426 2 area area NN 40404 4426 3 subsided subside VBD 40404 4426 4 during during IN 40404 4426 5 the the DT 40404 4426 6 Carboniferous carboniferous JJ 40404 4426 7 period period NN 40404 4426 8 to to IN 40404 4426 9 a a DT 40404 4426 10 depth depth NN 40404 4426 11 of of IN 40404 4426 12 nearly nearly RB 40404 4426 13 ten ten CD 40404 4426 14 thousand thousand CD 40404 4426 15 feet foot NNS 40404 4426 16 . . . 40404 4427 1 _ _ NNP 40404 4427 2 The the DT 40404 4427 3 Central central JJ 40404 4427 4 region region NN 40404 4427 5 _ _ NNP 40404 4427 6 lay lie VBD 40404 4427 7 west west NN 40404 4427 8 of of IN 40404 4427 9 the the DT 40404 4427 10 peninsula peninsula NN 40404 4427 11 of of IN 40404 4427 12 the the DT 40404 4427 13 Cincinnati Cincinnati NNP 40404 4427 14 anticline anticline NN 40404 4427 15 , , , 40404 4427 16 and and CC 40404 4427 17 extended extend VBN 40404 4427 18 from from IN 40404 4427 19 Indiana Indiana NNP 40404 4427 20 west west NNP 40404 4427 21 into into IN 40404 4427 22 eastern eastern JJ 40404 4427 23 Nebraska Nebraska NNP 40404 4427 24 , , , 40404 4427 25 and and CC 40404 4427 26 from from IN 40404 4427 27 central central JJ 40404 4427 28 Iowa Iowa NNP 40404 4427 29 and and CC 40404 4427 30 Illinois Illinois NNP 40404 4427 31 southward southward RB 40404 4427 32 about about IN 40404 4427 33 the the DT 40404 4427 34 ancient ancient JJ 40404 4427 35 island island NN 40404 4427 36 in in IN 40404 4427 37 Missouri Missouri NNP 40404 4427 38 and and CC 40404 4427 39 Arkansas Arkansas NNP 40404 4427 40 into into IN 40404 4427 41 Oklahoma Oklahoma NNP 40404 4427 42 and and CC 40404 4427 43 Texas Texas NNP 40404 4427 44 . . . 40404 4428 1 On on IN 40404 4428 2 the the DT 40404 4428 3 north north NN 40404 4428 4 the the DT 40404 4428 5 subsidence subsidence NN 40404 4428 6 in in IN 40404 4428 7 this this DT 40404 4428 8 area area NN 40404 4428 9 was be VBD 40404 4428 10 comparatively comparatively RB 40404 4428 11 slight slight JJ 40404 4428 12 , , , 40404 4428 13 for for IN 40404 4428 14 the the DT 40404 4428 15 Carboniferous carboniferous JJ 40404 4428 16 strata strata NN 40404 4428 17 scarcely scarcely RB 40404 4428 18 exceed exceed VBP 40404 4428 19 two two CD 40404 4428 20 thousand thousand CD 40404 4428 21 feet foot NNS 40404 4428 22 in in IN 40404 4428 23 thickness thickness NN 40404 4428 24 . . . 40404 4429 1 But but CC 40404 4429 2 in in IN 40404 4429 3 Arkansas Arkansas NNP 40404 4429 4 and and CC 40404 4429 5 Indian Indian NNP 40404 4429 6 Territory Territory NNP 40404 4429 7 the the DT 40404 4429 8 downward downward JJ 40404 4429 9 movement movement NN 40404 4429 10 amounted amount VBD 40404 4429 11 to to IN 40404 4429 12 four four CD 40404 4429 13 and and CC 40404 4429 14 five five CD 40404 4429 15 miles mile NNS 40404 4429 16 , , , 40404 4429 17 as as IN 40404 4429 18 is be VBZ 40404 4429 19 proved prove VBN 40404 4429 20 by by IN 40404 4429 21 shoal shoal NN 40404 4429 22 water water NN 40404 4429 23 deposits deposit NNS 40404 4429 24 of of IN 40404 4429 25 that that DT 40404 4429 26 immense immense JJ 40404 4429 27 thickness thickness NN 40404 4429 28 . . . 40404 4430 1 The the DT 40404 4430 2 coal coal NN 40404 4430 3 fields field NNS 40404 4430 4 of of IN 40404 4430 5 Indiana Indiana NNP 40404 4430 6 , , , 40404 4430 7 and and CC 40404 4430 8 Illinois Illinois NNP 40404 4430 9 are be VBP 40404 4430 10 now now RB 40404 4430 11 separated separate VBN 40404 4430 12 by by IN 40404 4430 13 erosion erosion NN 40404 4430 14 from from IN 40404 4430 15 those those DT 40404 4430 16 lying lie VBG 40404 4430 17 west west NN 40404 4430 18 of of IN 40404 4430 19 the the DT 40404 4430 20 Mississippi Mississippi NNP 40404 4430 21 River River NNP 40404 4430 22 . . . 40404 4431 1 At at IN 40404 4431 2 the the DT 40404 4431 3 south south NN 40404 4431 4 the the DT 40404 4431 5 Appalachian appalachian JJ 40404 4431 6 land land NN 40404 4431 7 seems seem VBZ 40404 4431 8 still still RB 40404 4431 9 to to TO 40404 4431 10 have have VB 40404 4431 11 stretched stretch VBN 40404 4431 12 away away RB 40404 4431 13 to to IN 40404 4431 14 the the DT 40404 4431 15 west west NN 40404 4431 16 across across IN 40404 4431 17 Louisiana Louisiana NNP 40404 4431 18 and and CC 40404 4431 19 Mississippi Mississippi NNP 40404 4431 20 into into IN 40404 4431 21 Texas Texas NNP 40404 4431 22 , , , 40404 4431 23 and and CC 40404 4431 24 this this DT 40404 4431 25 westward westward JJ 40404 4431 26 extension extension NN 40404 4431 27 formed form VBD 40404 4431 28 the the DT 40404 4431 29 southern southern JJ 40404 4431 30 boundary boundary NN 40404 4431 31 of of IN 40404 4431 32 the the DT 40404 4431 33 coal coal NN 40404 4431 34 marshes marsh NNS 40404 4431 35 of of IN 40404 4431 36 the the DT 40404 4431 37 continent continent NN 40404 4431 38 . . . 40404 4432 1 The the DT 40404 4432 2 three three CD 40404 4432 3 regions region NNS 40404 4432 4 just just RB 40404 4432 5 mentioned mention VBD 40404 4432 6 include include VBP 40404 4432 7 the the DT 40404 4432 8 chief chief JJ 40404 4432 9 Carboniferous carboniferous JJ 40404 4432 10 coal coal NN 40404 4432 11 fields field NNS 40404 4432 12 of of IN 40404 4432 13 North North NNP 40404 4432 14 America America NNP 40404 4432 15 . . . 40404 4433 1 Including include VBG 40404 4433 2 a a DT 40404 4433 3 field field NN 40404 4433 4 in in IN 40404 4433 5 central central JJ 40404 4433 6 Michigan Michigan NNP 40404 4433 7 evidently evidently RB 40404 4433 8 formed form VBN 40404 4433 9 in in IN 40404 4433 10 an an DT 40404 4433 11 inclosed inclose VBN 40404 4433 12 basin basin NN 40404 4433 13 ( ( -LRB- 40404 4433 14 Fig fig NN 40404 4433 15 . . . 40404 4434 1 260 260 CD 40404 4434 2 ) ) -RRB- 40404 4434 3 , , , 40404 4434 4 and and CC 40404 4434 5 one one CD 40404 4434 6 in in IN 40404 4434 7 Rhode Rhode NNP 40404 4434 8 Island Island NNP 40404 4434 9 , , , 40404 4434 10 the the DT 40404 4434 11 total total JJ 40404 4434 12 area area NN 40404 4434 13 of of IN 40404 4434 14 American american JJ 40404 4434 15 coal coal NN 40404 4434 16 fields field NNS 40404 4434 17 has have VBZ 40404 4434 18 been be VBN 40404 4434 19 reckoned reckon VBN 40404 4434 20 at at IN 40404 4434 21 not not RB 40404 4434 22 less less JJR 40404 4434 23 than than IN 40404 4434 24 two two CD 40404 4434 25 hundred hundred CD 40404 4434 26 thousand thousand CD 40404 4434 27 square square JJ 40404 4434 28 miles mile NNS 40404 4434 29 . . . 40404 4435 1 We -PRON- PRP 40404 4435 2 can can MD 40404 4435 3 hardly hardly RB 40404 4435 4 estimate estimate VB 40404 4435 5 the the DT 40404 4435 6 value value NN 40404 4435 7 of of IN 40404 4435 8 these these DT 40404 4435 9 great great JJ 40404 4435 10 stores store NNS 40404 4435 11 of of IN 40404 4435 12 fossil fossil JJ 40404 4435 13 fuel fuel NN 40404 4435 14 to to IN 40404 4435 15 an an DT 40404 4435 16 industrial industrial JJ 40404 4435 17 civilization civilization NN 40404 4435 18 . . . 40404 4436 1 The the DT 40404 4436 2 forests forest NNS 40404 4436 3 of of IN 40404 4436 4 the the DT 40404 4436 5 coal coal NN 40404 4436 6 swamps swamp NNS 40404 4436 7 accumulated accumulate VBN 40404 4436 8 in in IN 40404 4436 9 their -PRON- PRP$ 40404 4436 10 woody woody NN 40404 4436 11 tissues tissue VBZ 40404 4436 12 the the DT 40404 4436 13 energy energy NN 40404 4436 14 which which WDT 40404 4436 15 they -PRON- PRP 40404 4436 16 received receive VBD 40404 4436 17 from from IN 40404 4436 18 the the DT 40404 4436 19 sun sun NN 40404 4436 20 in in IN 40404 4436 21 light light NN 40404 4436 22 and and CC 40404 4436 23 heat heat NN 40404 4436 24 , , , 40404 4436 25 and and CC 40404 4436 26 it -PRON- PRP 40404 4436 27 is be VBZ 40404 4436 28 this this DT 40404 4436 29 solar solar JJ 40404 4436 30 energy energy NN 40404 4436 31 long long RB 40404 4436 32 stored store VBN 40404 4436 33 in in IN 40404 4436 34 coal coal NN 40404 4436 35 seams seam NNS 40404 4436 36 which which WDT 40404 4436 37 now now RB 40404 4436 38 forms form VBZ 40404 4436 39 the the DT 40404 4436 40 world world NN 40404 4436 41 's 's POS 40404 4436 42 chief chief JJ 40404 4436 43 source source NN 40404 4436 44 of of IN 40404 4436 45 power power NN 40404 4436 46 in in IN 40404 4436 47 manufacturing manufacturing NN 40404 4436 48 . . . 40404 4437 1 = = NFP 40404 4437 2 The the DT 40404 4437 3 western western JJ 40404 4437 4 area.= area.= NN 40404 4437 5 On on IN 40404 4437 6 the the DT 40404 4437 7 Great Great NNP 40404 4437 8 Plains Plains NNPS 40404 4437 9 beyond beyond IN 40404 4437 10 the the DT 40404 4437 11 Missouri Missouri NNP 40404 4437 12 River River NNP 40404 4437 13 the the DT 40404 4437 14 Carboniferous carboniferous JJ 40404 4437 15 strata strata NN 40404 4437 16 pass pass VB 40404 4437 17 under under IN 40404 4437 18 those those DT 40404 4437 19 of of IN 40404 4437 20 more more JJR 40404 4437 21 recent recent JJ 40404 4437 22 systems system NNS 40404 4437 23 . . . 40404 4438 1 Where where WRB 40404 4438 2 they -PRON- PRP 40404 4438 3 reappear reappear VBP 40404 4438 4 , , , 40404 4438 5 as as IN 40404 4438 6 about about RB 40404 4438 7 dissected dissect VBN 40404 4438 8 mountain mountain NN 40404 4438 9 axes axis NNS 40404 4438 10 or or CC 40404 4438 11 on on IN 40404 4438 12 stripped strip VBN 40404 4438 13 plateaus plateaus NN 40404 4438 14 , , , 40404 4438 15 they -PRON- PRP 40404 4438 16 consist consist VBP 40404 4438 17 wholly wholly RB 40404 4438 18 of of IN 40404 4438 19 marine marine JJ 40404 4438 20 deposits deposit NNS 40404 4438 21 and and CC 40404 4438 22 are be VBP 40404 4438 23 devoid devoid JJ 40404 4438 24 of of IN 40404 4438 25 coal coal NN 40404 4438 26 . . . 40404 4439 1 The the DT 40404 4439 2 rich rich JJ 40404 4439 3 coal coal NN 40404 4439 4 fields field NNS 40404 4439 5 of of IN 40404 4439 6 the the DT 40404 4439 7 West West NNP 40404 4439 8 are be VBP 40404 4439 9 of of IN 40404 4439 10 later later JJ 40404 4439 11 date date NN 40404 4439 12 . . . 40404 4440 1 On on IN 40404 4440 2 the the DT 40404 4440 3 whole whole NN 40404 4440 4 the the DT 40404 4440 5 Carboniferous Carboniferous NNP 40404 4440 6 seems seem VBZ 40404 4440 7 to to TO 40404 4440 8 have have VB 40404 4440 9 been be VBN 40404 4440 10 a a DT 40404 4440 11 time time NN 40404 4440 12 of of IN 40404 4440 13 subsidence subsidence NN 40404 4440 14 in in IN 40404 4440 15 the the DT 40404 4440 16 West West NNP 40404 4440 17 . . . 40404 4441 1 Throughout throughout IN 40404 4441 2 the the DT 40404 4441 3 period period NN 40404 4441 4 a a DT 40404 4441 5 sea sea NN 40404 4441 6 covered cover VBD 40404 4441 7 the the DT 40404 4441 8 Great Great NNP 40404 4441 9 Basin Basin NNP 40404 4441 10 and and CC 40404 4441 11 the the DT 40404 4441 12 plateaus plateaus NN 40404 4441 13 of of IN 40404 4441 14 the the DT 40404 4441 15 Colorado Colorado NNP 40404 4441 16 River River NNP 40404 4441 17 . . . 40404 4442 1 At at IN 40404 4442 2 the the DT 40404 4442 3 time time NN 40404 4442 4 of of IN 40404 4442 5 the the DT 40404 4442 6 greatest great JJS 40404 4442 7 depression depression NN 40404 4442 8 the the DT 40404 4442 9 sites site NNS 40404 4442 10 of of IN 40404 4442 11 the the DT 40404 4442 12 central central JJ 40404 4442 13 chains chain NNS 40404 4442 14 of of IN 40404 4442 15 the the DT 40404 4442 16 Rockies Rockies NNPS 40404 4442 17 were be VBD 40404 4442 18 probably probably RB 40404 4442 19 islands island NNS 40404 4442 20 , , , 40404 4442 21 but but CC 40404 4442 22 early early RB 40404 4442 23 in in IN 40404 4442 24 the the DT 40404 4442 25 period period NN 40404 4442 26 they -PRON- PRP 40404 4442 27 may may MD 40404 4442 28 have have VB 40404 4442 29 been be VBN 40404 4442 30 connected connect VBN 40404 4442 31 with with IN 40404 4442 32 the the DT 40404 4442 33 broad broad JJ 40404 4442 34 lands land NNS 40404 4442 35 to to IN 40404 4442 36 the the DT 40404 4442 37 south south NNP 40404 4442 38 and and CC 40404 4442 39 east east NN 40404 4442 40 . . . 40404 4443 1 Thousands thousand NNS 40404 4443 2 of of IN 40404 4443 3 feet foot NNS 40404 4443 4 of of IN 40404 4443 5 Carboniferous carboniferous JJ 40404 4443 6 sediments sediment NNS 40404 4443 7 were be VBD 40404 4443 8 deposited deposit VBN 40404 4443 9 where where WRB 40404 4443 10 the the DT 40404 4443 11 Sierra Sierra NNP 40404 4443 12 Nevada Nevada NNP 40404 4443 13 Mountains Mountains NNPS 40404 4443 14 now now RB 40404 4443 15 stand stand VBP 40404 4443 16 . . . 40404 4444 1 = = NFP 40404 4444 2 The the DT 40404 4444 3 Permian.= Permian.= NNP 40404 4444 4 As as IN 40404 4444 5 the the DT 40404 4444 6 Carboniferous carboniferous JJ 40404 4444 7 period period NN 40404 4444 8 drew draw VBD 40404 4444 9 toward toward IN 40404 4444 10 its -PRON- PRP$ 40404 4444 11 close close NN 40404 4444 12 the the DT 40404 4444 13 sea sea NN 40404 4444 14 gradually gradually RB 40404 4444 15 withdrew withdraw VBD 40404 4444 16 from from IN 40404 4444 17 the the DT 40404 4444 18 eastern eastern JJ 40404 4444 19 part part NN 40404 4444 20 of of IN 40404 4444 21 the the DT 40404 4444 22 continent continent NN 40404 4444 23 . . . 40404 4445 1 Where where WRB 40404 4445 2 the the DT 40404 4445 3 sea sea NN 40404 4445 4 lingered linger VBD 40404 4445 5 in in IN 40404 4445 6 the the DT 40404 4445 7 deepest deep JJS 40404 4445 8 troughs trough NNS 40404 4445 9 , , , 40404 4445 10 and and CC 40404 4445 11 where where WRB 40404 4445 12 inclosed inclose VBN 40404 4445 13 basins basin NNS 40404 4445 14 were be VBD 40404 4445 15 cut cut VBN 40404 4445 16 off off RP 40404 4445 17 from from IN 40404 4445 18 it -PRON- PRP 40404 4445 19 , , , 40404 4445 20 the the DT 40404 4445 21 strata strata NN 40404 4445 22 of of IN 40404 4445 23 the the DT 40404 4445 24 Permian Permian NNP 40404 4445 25 were be VBD 40404 4445 26 deposited deposit VBN 40404 4445 27 . . . 40404 4446 1 Such such JJ 40404 4446 2 are be VBP 40404 4446 3 found find VBN 40404 4446 4 in in IN 40404 4446 5 New New NNP 40404 4446 6 Brunswick Brunswick NNP 40404 4446 7 , , , 40404 4446 8 in in IN 40404 4446 9 Pennsylvania Pennsylvania NNP 40404 4446 10 and and CC 40404 4446 11 West West NNP 40404 4446 12 Virginia Virginia NNP 40404 4446 13 , , , 40404 4446 14 in in IN 40404 4446 15 Texas Texas NNP 40404 4446 16 , , , 40404 4446 17 and and CC 40404 4446 18 in in IN 40404 4446 19 Kansas Kansas NNP 40404 4446 20 . . . 40404 4447 1 In in IN 40404 4447 2 southwestern southwestern JJ 40404 4447 3 Kansas Kansas NNP 40404 4447 4 extensive extensive JJ 40404 4447 5 Permian permian JJ 40404 4447 6 beds bed NNS 40404 4447 7 of of IN 40404 4447 8 rock rock NN 40404 4447 9 salt salt NN 40404 4447 10 and and CC 40404 4447 11 gypsum gypsum NN 40404 4447 12 show show VBP 40404 4447 13 that that WDT 40404 4447 14 here here RB 40404 4447 15 lay lie VBD 40404 4447 16 great great JJ 40404 4447 17 salt salt NN 40404 4447 18 lakes lake NNS 40404 4447 19 in in IN 40404 4447 20 which which WDT 40404 4447 21 these these DT 40404 4447 22 minerals mineral NNS 40404 4447 23 were be VBD 40404 4447 24 precipitated precipitate VBN 40404 4447 25 as as IN 40404 4447 26 their -PRON- PRP$ 40404 4447 27 brines brine NNS 40404 4447 28 grew grow VBD 40404 4447 29 dense dense JJ 40404 4447 30 and and CC 40404 4447 31 dried dry VBN 40404 4447 32 away away RB 40404 4447 33 . . . 40404 4448 1 In in IN 40404 4448 2 the the DT 40404 4448 3 southern southern JJ 40404 4448 4 hemisphere hemisphere NN 40404 4448 5 the the DT 40404 4448 6 Permian permian JJ 40404 4448 7 deposits deposit NNS 40404 4448 8 are be VBP 40404 4448 9 so so RB 40404 4448 10 extraordinary extraordinary JJ 40404 4448 11 that that IN 40404 4448 12 they -PRON- PRP 40404 4448 13 deserve deserve VBP 40404 4448 14 a a DT 40404 4448 15 brief brief JJ 40404 4448 16 notice notice NN 40404 4448 17 , , , 40404 4448 18 although although IN 40404 4448 19 we -PRON- PRP 40404 4448 20 have have VBP 40404 4448 21 so so RB 40404 4448 22 far far RB 40404 4448 23 omitted omit VBN 40404 4448 24 mention mention NN 40404 4448 25 of of IN 40404 4448 26 the the DT 40404 4448 27 great great JJ 40404 4448 28 events event NNS 40404 4448 29 which which WDT 40404 4448 30 characterized characterize VBD 40404 4448 31 the the DT 40404 4448 32 evolution evolution NN 40404 4448 33 of of IN 40404 4448 34 other other JJ 40404 4448 35 continents continent NNS 40404 4448 36 than than IN 40404 4448 37 our -PRON- PRP$ 40404 4448 38 own own JJ 40404 4448 39 . . . 40404 4449 1 The the DT 40404 4449 2 Permian permian JJ 40404 4449 3 fauna fauna NN 40404 4449 4 - - HYPH 40404 4449 5 flora flora NNS 40404 4449 6 of of IN 40404 4449 7 Australia Australia NNP 40404 4449 8 , , , 40404 4449 9 India India NNP 40404 4449 10 , , , 40404 4449 11 South South NNP 40404 4449 12 Africa Africa NNP 40404 4449 13 , , , 40404 4449 14 and and CC 40404 4449 15 the the DT 40404 4449 16 southern southern JJ 40404 4449 17 part part NN 40404 4449 18 of of IN 40404 4449 19 South South NNP 40404 4449 20 America America NNP 40404 4449 21 are be VBP 40404 4449 22 so so RB 40404 4449 23 similar similar JJ 40404 4449 24 that that IN 40404 4449 25 the the DT 40404 4449 26 inference inference NN 40404 4449 27 is be VBZ 40404 4449 28 a a DT 40404 4449 29 reasonable reasonable JJ 40404 4449 30 one one NN 40404 4449 31 that that WDT 40404 4449 32 these these DT 40404 4449 33 widely widely RB 40404 4449 34 separated separated JJ 40404 4449 35 regions region NNS 40404 4449 36 were be VBD 40404 4449 37 then then RB 40404 4449 38 connected connect VBN 40404 4449 39 together together RB 40404 4449 40 , , , 40404 4449 41 probably probably RB 40404 4449 42 as as IN 40404 4449 43 extensions extension NNS 40404 4449 44 of of IN 40404 4449 45 a a DT 40404 4449 46 great great JJ 40404 4449 47 antarctic antarctic JJ 40404 4449 48 continent continent NN 40404 4449 49 . . . 40404 4450 1 Interbedded interbedde VBN 40404 4450 2 with with IN 40404 4450 3 the the DT 40404 4450 4 Permian permian JJ 40404 4450 5 strata strata NN 40404 4450 6 of of IN 40404 4450 7 the the DT 40404 4450 8 first first JJ 40404 4450 9 three three CD 40404 4450 10 countries country NNS 40404 4450 11 named name VBN 40404 4450 12 are be VBP 40404 4450 13 extensive extensive JJ 40404 4450 14 and and CC 40404 4450 15 thick thick JJ 40404 4450 16 deposits deposit NNS 40404 4450 17 of of IN 40404 4450 18 a a DT 40404 4450 19 peculiar peculiar JJ 40404 4450 20 nature nature NN 40404 4450 21 which which WDT 40404 4450 22 are be VBP 40404 4450 23 clearly clearly RB 40404 4450 24 ancient ancient JJ 40404 4450 25 ground ground NN 40404 4450 26 moraines moraine NNS 40404 4450 27 . . . 40404 4451 1 Clays clay NNS 40404 4451 2 and and CC 40404 4451 3 sand sand NN 40404 4451 4 , , , 40404 4451 5 now now RB 40404 4451 6 hardened harden VBN 40404 4451 7 to to TO 40404 4451 8 firm firm VB 40404 4451 9 rock rock NN 40404 4451 10 , , , 40404 4451 11 are be VBP 40404 4451 12 inset inset JJ 40404 4451 13 with with IN 40404 4451 14 unsorted unsorted JJ 40404 4451 15 stones stone NNS 40404 4451 16 of of IN 40404 4451 17 all all DT 40404 4451 18 sizes size NNS 40404 4451 19 , , , 40404 4451 20 which which WDT 40404 4451 21 often often RB 40404 4451 22 are be VBP 40404 4451 23 faceted facete VBN 40404 4451 24 and and CC 40404 4451 25 scratched scratch VBD 40404 4451 26 . . . 40404 4452 1 Moreover moreover RB 40404 4452 2 , , , 40404 4452 3 these these DT 40404 4452 4 bowlder bowlder NN 40404 4452 5 clays clay NNS 40404 4452 6 rest rest VBP 40404 4452 7 on on IN 40404 4452 8 rock rock NN 40404 4452 9 pavements pavement NNS 40404 4452 10 which which WDT 40404 4452 11 are be VBP 40404 4452 12 polished polish VBN 40404 4452 13 and and CC 40404 4452 14 scored score VBN 40404 4452 15 with with IN 40404 4452 16 glacial glacial JJ 40404 4452 17 markings marking NNS 40404 4452 18 . . . 40404 4453 1 Hence hence RB 40404 4453 2 toward toward IN 40404 4453 3 the the DT 40404 4453 4 close close NN 40404 4453 5 of of IN 40404 4453 6 the the DT 40404 4453 7 Paleozoic Paleozoic NNP 40404 4453 8 the the DT 40404 4453 9 southern southern JJ 40404 4453 10 lands land NNS 40404 4453 11 of of IN 40404 4453 12 the the DT 40404 4453 13 eastern eastern NNP 40404 4453 14 hemisphere hemisphere NNP 40404 4453 15 were be VBD 40404 4453 16 invaded invade VBN 40404 4453 17 by by IN 40404 4453 18 great great JJ 40404 4453 19 glaciers glacier NNS 40404 4453 20 or or CC 40404 4453 21 perhaps perhaps RB 40404 4453 22 by by IN 40404 4453 23 ice ice NN 40404 4453 24 sheets sheet NNS 40404 4453 25 like like IN 40404 4453 26 that that DT 40404 4453 27 which which WDT 40404 4453 28 now now RB 40404 4453 29 shrouds shroud VBZ 40404 4453 30 Greenland Greenland NNP 40404 4453 31 . . . 40404 4454 1 These these DT 40404 4454 2 Permian permian JJ 40404 4454 3 ground ground NN 40404 4454 4 moraines moraine NNS 40404 4454 5 are be VBP 40404 4454 6 not not RB 40404 4454 7 the the DT 40404 4454 8 first first JJ 40404 4454 9 traces trace NNS 40404 4454 10 of of IN 40404 4454 11 the the DT 40404 4454 12 work work NN 40404 4454 13 of of IN 40404 4454 14 glaciers glacier NNS 40404 4454 15 met meet VBD 40404 4454 16 with with IN 40404 4454 17 in in IN 40404 4454 18 the the DT 40404 4454 19 geological geological JJ 40404 4454 20 record record NN 40404 4454 21 . . . 40404 4455 1 Similar similar JJ 40404 4455 2 deposits deposit NNS 40404 4455 3 prove prove VBP 40404 4455 4 glaciation glaciation NN 40404 4455 5 in in IN 40404 4455 6 Norway Norway NNP 40404 4455 7 succeeding succeed VBG 40404 4455 8 the the DT 40404 4455 9 pre pre JJ 40404 4455 10 - - JJ 40404 4455 11 Cambrian cambrian JJ 40404 4455 12 stage stage NN 40404 4455 13 of of IN 40404 4455 14 elevation elevation NN 40404 4455 15 , , , 40404 4455 16 and and CC 40404 4455 17 Cambrian cambrian JJ 40404 4455 18 glacial glacial JJ 40404 4455 19 drift drift NN 40404 4455 20 has have VBZ 40404 4455 21 recently recently RB 40404 4455 22 been be VBN 40404 4455 23 found find VBN 40404 4455 24 in in IN 40404 4455 25 China China NNP 40404 4455 26 . . . 40404 4456 1 = = NFP 40404 4456 2 The the DT 40404 4456 3 Appalachian appalachian JJ 40404 4456 4 deformation.= deformation.= NN 40404 4456 5 We -PRON- PRP 40404 4456 6 have have VBP 40404 4456 7 seen see VBN 40404 4456 8 that that IN 40404 4456 9 during during IN 40404 4456 10 Paleozoic Paleozoic NNP 40404 4456 11 times time NNS 40404 4456 12 a a DT 40404 4456 13 long long JJ 40404 4456 14 , , , 40404 4456 15 narrow narrow JJ 40404 4456 16 trough trough NN 40404 4456 17 of of IN 40404 4456 18 the the DT 40404 4456 19 sea sea NN 40404 4456 20 lay lie VBD 40404 4456 21 off off RP 40404 4456 22 the the DT 40404 4456 23 western western JJ 40404 4456 24 coast coast NN 40404 4456 25 of of IN 40404 4456 26 the the DT 40404 4456 27 ancient ancient JJ 40404 4456 28 land land NN 40404 4456 29 of of IN 40404 4456 30 Appalachia Appalachia NNP 40404 4456 31 , , , 40404 4456 32 where where WRB 40404 4456 33 now now RB 40404 4456 34 are be VBP 40404 4456 35 the the DT 40404 4456 36 Appalachian Appalachian NNP 40404 4456 37 Mountains Mountains NNPS 40404 4456 38 . . . 40404 4457 1 During during IN 40404 4457 2 the the DT 40404 4457 3 long long JJ 40404 4457 4 ages age NNS 40404 4457 5 of of IN 40404 4457 6 this this DT 40404 4457 7 era era NN 40404 4457 8 the the DT 40404 4457 9 trough trough NN 40404 4457 10 gradually gradually RB 40404 4457 11 subsided subside VBD 40404 4457 12 , , , 40404 4457 13 although although IN 40404 4457 14 with with IN 40404 4457 15 many many JJ 40404 4457 16 stillstands stillstand NNS 40404 4457 17 and and CC 40404 4457 18 with with IN 40404 4457 19 occasional occasional JJ 40404 4457 20 slight slight JJ 40404 4457 21 oscillations oscillation NNS 40404 4457 22 upward upward RB 40404 4457 23 . . . 40404 4458 1 Meanwhile meanwhile RB 40404 4458 2 the the DT 40404 4458 3 land land NN 40404 4458 4 lying lie VBG 40404 4458 5 to to IN 40404 4458 6 the the DT 40404 4458 7 east east NN 40404 4458 8 was be VBD 40404 4458 9 gradually gradually RB 40404 4458 10 uplifted uplifted JJ 40404 4458 11 at at IN 40404 4458 12 varying vary VBG 40404 4458 13 rates rate NNS 40404 4458 14 and and CC 40404 4458 15 with with IN 40404 4458 16 long long JJ 40404 4458 17 pauses pause NNS 40404 4458 18 . . . 40404 4459 1 The the DT 40404 4459 2 waste waste NN 40404 4459 3 of of IN 40404 4459 4 the the DT 40404 4459 5 rising rise VBG 40404 4459 6 land land NN 40404 4459 7 was be VBD 40404 4459 8 constantly constantly RB 40404 4459 9 transferred transfer VBN 40404 4459 10 to to IN 40404 4459 11 the the DT 40404 4459 12 sinking sink VBG 40404 4459 13 marginal marginal JJ 40404 4459 14 sea sea NN 40404 4459 15 bottom bottom NN 40404 4459 16 , , , 40404 4459 17 and and CC 40404 4459 18 on on IN 40404 4459 19 the the DT 40404 4459 20 whole whole NN 40404 4459 21 the the DT 40404 4459 22 trough trough NN 40404 4459 23 was be VBD 40404 4459 24 filled fill VBN 40404 4459 25 with with IN 40404 4459 26 sediments sediment NNS 40404 4459 27 as as RB 40404 4459 28 rapidly rapidly RB 40404 4459 29 as as IN 40404 4459 30 it -PRON- PRP 40404 4459 31 subsided subside VBD 40404 4459 32 . . . 40404 4460 1 The the DT 40404 4460 2 sea sea NN 40404 4460 3 was be VBD 40404 4460 4 thus thus RB 40404 4460 5 kept keep VBN 40404 4460 6 shallow shallow JJ 40404 4460 7 , , , 40404 4460 8 and and CC 40404 4460 9 at at IN 40404 4460 10 times time NNS 40404 4460 11 , , , 40404 4460 12 especially especially RB 40404 4460 13 toward toward IN 40404 4460 14 the the DT 40404 4460 15 close close NN 40404 4460 16 of of IN 40404 4460 17 the the DT 40404 4460 18 era era NN 40404 4460 19 , , , 40404 4460 20 much much JJ 40404 4460 21 of of IN 40404 4460 22 the the DT 40404 4460 23 area area NN 40404 4460 24 was be VBD 40404 4460 25 upbuilt upbuilt JJ 40404 4460 26 or or CC 40404 4460 27 raised raise VBN 40404 4460 28 to to IN 40404 4460 29 low low JJ 40404 4460 30 , , , 40404 4460 31 marshy marshy JJ 40404 4460 32 , , , 40404 4460 33 coastal coastal JJ 40404 4460 34 plains plain NNS 40404 4460 35 . . . 40404 4461 1 When when WRB 40404 4461 2 the the DT 40404 4461 3 Carboniferous Carboniferous NNP 40404 4461 4 was be VBD 40404 4461 5 ended end VBN 40404 4461 6 the the DT 40404 4461 7 waste waste NN 40404 4461 8 which which WDT 40404 4461 9 had have VBD 40404 4461 10 been be VBN 40404 4461 11 removed remove VBN 40404 4461 12 from from IN 40404 4461 13 the the DT 40404 4461 14 land land NN 40404 4461 15 and and CC 40404 4461 16 laid lay VBD 40404 4461 17 along along IN 40404 4461 18 its -PRON- PRP$ 40404 4461 19 margin margin NN 40404 4461 20 in in IN 40404 4461 21 the the DT 40404 4461 22 successive successive JJ 40404 4461 23 formations formation NNS 40404 4461 24 of of IN 40404 4461 25 the the DT 40404 4461 26 Paleozoic Paleozoic NNP 40404 4461 27 had have VBD 40404 4461 28 reached reach VBN 40404 4461 29 a a DT 40404 4461 30 thickness thickness NN 40404 4461 31 of of IN 40404 4461 32 between between IN 40404 4461 33 thirty thirty CD 40404 4461 34 and and CC 40404 4461 35 forty forty CD 40404 4461 36 thousand thousand CD 40404 4461 37 feet foot NNS 40404 4461 38 . . . 40404 4462 1 Both both DT 40404 4462 2 by by IN 40404 4462 3 sedimentation sedimentation NN 40404 4462 4 and and CC 40404 4462 5 by by IN 40404 4462 6 subsidence subsidence NN 40404 4462 7 the the DT 40404 4462 8 trough trough NN 40404 4462 9 had have VBD 40404 4462 10 now now RB 40404 4462 11 become become VBN 40404 4462 12 a a DT 40404 4462 13 belt belt NN 40404 4462 14 of of IN 40404 4462 15 weakness weakness NN 40404 4462 16 in in IN 40404 4462 17 the the DT 40404 4462 18 crust crust NN 40404 4462 19 of of IN 40404 4462 20 the the DT 40404 4462 21 earth earth NN 40404 4462 22 . . . 40404 4463 1 Here here RB 40404 4463 2 the the DT 40404 4463 3 crust crust NN 40404 4463 4 was be VBD 40404 4463 5 now now RB 40404 4463 6 made make VBN 40404 4463 7 of of IN 40404 4463 8 layers layer NNS 40404 4463 9 to to IN 40404 4463 10 the the DT 40404 4463 11 depth depth NN 40404 4463 12 of of IN 40404 4463 13 six six CD 40404 4463 14 or or CC 40404 4463 15 seven seven CD 40404 4463 16 miles mile NNS 40404 4463 17 . . . 40404 4464 1 In in IN 40404 4464 2 comparison comparison NN 40404 4464 3 with with IN 40404 4464 4 the the DT 40404 4464 5 massive massive JJ 40404 4464 6 crystalline crystalline NN 40404 4464 7 rocks rock NNS 40404 4464 8 of of IN 40404 4464 9 Appalachia Appalachia NNP 40404 4464 10 on on IN 40404 4464 11 the the DT 40404 4464 12 east east NN 40404 4464 13 , , , 40404 4464 14 the the DT 40404 4464 15 layered layered JJ 40404 4464 16 rock rock NN 40404 4464 17 of of IN 40404 4464 18 the the DT 40404 4464 19 trough trough NN 40404 4464 20 was be VBD 40404 4464 21 weak weak JJ 40404 4464 22 to to TO 40404 4464 23 resist resist VB 40404 4464 24 lateral lateral JJ 40404 4464 25 pressure pressure NN 40404 4464 26 , , , 40404 4464 27 as as IN 40404 4464 28 a a DT 40404 4464 29 ream ream NN 40404 4464 30 of of IN 40404 4464 31 sheets sheet NNS 40404 4464 32 of of IN 40404 4464 33 paper paper NN 40404 4464 34 is be VBZ 40404 4464 35 weak weak JJ 40404 4464 36 when when WRB 40404 4464 37 compared compare VBN 40404 4464 38 with with IN 40404 4464 39 a a DT 40404 4464 40 solid solid JJ 40404 4464 41 board board NN 40404 4464 42 of of IN 40404 4464 43 the the DT 40404 4464 44 same same JJ 40404 4464 45 thickness thickness NN 40404 4464 46 . . . 40404 4465 1 It -PRON- PRP 40404 4465 2 was be VBD 40404 4465 3 weaker weak JJR 40404 4465 4 also also RB 40404 4465 5 than than IN 40404 4465 6 the the DT 40404 4465 7 region region NN 40404 4465 8 to to IN 40404 4465 9 the the DT 40404 4465 10 west west NN 40404 4465 11 , , , 40404 4465 12 since since IN 40404 4465 13 there there RB 40404 4465 14 the the DT 40404 4465 15 sediments sediment NNS 40404 4465 16 were be VBD 40404 4465 17 much much RB 40404 4465 18 thinner thin JJR 40404 4465 19 . . . 40404 4466 1 Besides besides RB 40404 4466 2 , , , 40404 4466 3 by by IN 40404 4466 4 the the DT 40404 4466 5 long long RB 40404 4466 6 - - HYPH 40404 4466 7 continued continue VBN 40404 4466 8 depression depression NN 40404 4466 9 the the DT 40404 4466 10 strata strata NN 40404 4466 11 of of IN 40404 4466 12 the the DT 40404 4466 13 trough trough NN 40404 4466 14 had have VBD 40404 4466 15 been be VBN 40404 4466 16 bent bent JJ 40404 4466 17 from from IN 40404 4466 18 the the DT 40404 4466 19 flat flat RB 40404 4466 20 - - HYPH 40404 4466 21 lying lie VBG 40404 4466 22 attitude attitude NN 40404 4466 23 in in IN 40404 4466 24 which which WDT 40404 4466 25 they -PRON- PRP 40404 4466 26 were be VBD 40404 4466 27 laid lay VBN 40404 4466 28 to to IN 40404 4466 29 one one CD 40404 4466 30 in in IN 40404 4466 31 which which WDT 40404 4466 32 they -PRON- PRP 40404 4466 33 were be VBD 40404 4466 34 less less RBR 40404 4466 35 able able JJ 40404 4466 36 to to TO 40404 4466 37 resist resist VB 40404 4466 38 a a DT 40404 4466 39 horizontal horizontal JJ 40404 4466 40 thrust thrust NN 40404 4466 41 . . . 40404 4467 1 There there EX 40404 4467 2 now now RB 40404 4467 3 occurred occur VBD 40404 4467 4 one one CD 40404 4467 5 of of IN 40404 4467 6 the the DT 40404 4467 7 critical critical JJ 40404 4467 8 stages stage NNS 40404 4467 9 in in IN 40404 4467 10 the the DT 40404 4467 11 history history NN 40404 4467 12 of of IN 40404 4467 13 the the DT 40404 4467 14 planet planet NN 40404 4467 15 , , , 40404 4467 16 when when WRB 40404 4467 17 the the DT 40404 4467 18 crust crust NN 40404 4467 19 crumples crumple VBZ 40404 4467 20 under under IN 40404 4467 21 its -PRON- PRP$ 40404 4467 22 own own JJ 40404 4467 23 weight weight NN 40404 4467 24 and and CC 40404 4467 25 shrinks shrink VBZ 40404 4467 26 down down RP 40404 4467 27 upon upon IN 40404 4467 28 a a DT 40404 4467 29 nucleus nucleus NN 40404 4467 30 which which WDT 40404 4467 31 is be VBZ 40404 4467 32 diminishing diminish VBG 40404 4467 33 in in IN 40404 4467 34 volume volume NN 40404 4467 35 and and CC 40404 4467 36 no no RB 40404 4467 37 longer long RBR 40404 4467 38 able able JJ 40404 4467 39 to to TO 40404 4467 40 support support VB 40404 4467 41 it -PRON- PRP 40404 4467 42 . . . 40404 4468 1 Under under IN 40404 4468 2 slow slow JJ 40404 4468 3 but but CC 40404 4468 4 resistless resistless JJ 40404 4468 5 pressure pressure NN 40404 4468 6 the the DT 40404 4468 7 strata strata NN 40404 4468 8 of of IN 40404 4468 9 the the DT 40404 4468 10 Appalachian appalachian JJ 40404 4468 11 trough trough NN 40404 4468 12 were be VBD 40404 4468 13 thrust thrust VBN 40404 4468 14 against against IN 40404 4468 15 the the DT 40404 4468 16 rigid rigid JJ 40404 4468 17 land land NN 40404 4468 18 , , , 40404 4468 19 and and CC 40404 4468 20 slowly slowly RB 40404 4468 21 , , , 40404 4468 22 steadily steadily RB 40404 4468 23 bent bent JJ 40404 4468 24 into into IN 40404 4468 25 long long JJ 40404 4468 26 folds fold NNS 40404 4468 27 whose whose WP$ 40404 4468 28 axes axis NNS 40404 4468 29 ran run VBD 40404 4468 30 northeast northeast JJ 40404 4468 31 - - HYPH 40404 4468 32 southwest southwest NN 40404 4468 33 parallel parallel NN 40404 4468 34 to to IN 40404 4468 35 the the DT 40404 4468 36 ancient ancient JJ 40404 4468 37 coast coast NN 40404 4468 38 line line NN 40404 4468 39 . . . 40404 4469 1 It -PRON- PRP 40404 4469 2 was be VBD 40404 4469 3 on on IN 40404 4469 4 the the DT 40404 4469 5 eastern eastern JJ 40404 4469 6 side side NN 40404 4469 7 next next IN 40404 4469 8 the the DT 40404 4469 9 buttress buttress NN 40404 4469 10 of of IN 40404 4469 11 the the DT 40404 4469 12 land land NN 40404 4469 13 that that WDT 40404 4469 14 the the DT 40404 4469 15 deformation deformation NN 40404 4469 16 was be VBD 40404 4469 17 the the DT 40404 4469 18 greatest great JJS 40404 4469 19 , , , 40404 4469 20 and and CC 40404 4469 21 the the DT 40404 4469 22 folds fold NNS 40404 4469 23 most most RBS 40404 4469 24 steep steep JJ 40404 4469 25 and and CC 40404 4469 26 close close JJ 40404 4469 27 . . . 40404 4470 1 In in IN 40404 4470 2 central central JJ 40404 4470 3 Pennsylvania Pennsylvania NNP 40404 4470 4 and and CC 40404 4470 5 West West NNP 40404 4470 6 Virginia Virginia NNP 40404 4470 7 the the DT 40404 4470 8 folds fold NNS 40404 4470 9 were be VBD 40404 4470 10 for for IN 40404 4470 11 the the DT 40404 4470 12 most most JJS 40404 4470 13 part part NN 40404 4470 14 open open JJ 40404 4470 15 . . . 40404 4471 1 South south RB 40404 4471 2 of of IN 40404 4471 3 these these DT 40404 4471 4 states state NNS 40404 4471 5 the the DT 40404 4471 6 folds fold NNS 40404 4471 7 were be VBD 40404 4471 8 more more RBR 40404 4471 9 closely closely RB 40404 4471 10 appressed appresse VBN 40404 4471 11 , , , 40404 4471 12 the the DT 40404 4471 13 strata strata NN 40404 4471 14 were be VBD 40404 4471 15 much much RB 40404 4471 16 broken break VBN 40404 4471 17 , , , 40404 4471 18 and and CC 40404 4471 19 the the DT 40404 4471 20 great great JJ 40404 4471 21 thrust thrust JJ 40404 4471 22 faults fault NNS 40404 4471 23 were be VBD 40404 4471 24 formed form VBN 40404 4471 25 which which WDT 40404 4471 26 have have VBP 40404 4471 27 been be VBN 40404 4471 28 described describe VBN 40404 4471 29 already already RB 40404 4471 30 . . . 40404 4472 1 In in IN 40404 4472 2 eastern eastern JJ 40404 4472 3 Pennsylvania Pennsylvania NNP 40404 4472 4 seams seam VBZ 40404 4472 5 of of IN 40404 4472 6 bituminous bituminous JJ 40404 4472 7 coal coal NN 40404 4472 8 were be VBD 40404 4472 9 altered alter VBN 40404 4472 10 to to TO 40404 4472 11 anthracite anthracite VB 40404 4472 12 , , , 40404 4472 13 while while IN 40404 4472 14 outside outside IN 40404 4472 15 the the DT 40404 4472 16 region region NN 40404 4472 17 of of IN 40404 4472 18 strong strong JJ 40404 4472 19 deformation deformation NN 40404 4472 20 , , , 40404 4472 21 as as IN 40404 4472 22 in in IN 40404 4472 23 western western JJ 40404 4472 24 Pennsylvania Pennsylvania NNP 40404 4472 25 , , , 40404 4472 26 they -PRON- PRP 40404 4472 27 remained remain VBD 40404 4472 28 unchanged unchanged JJ 40404 4472 29 . . . 40404 4473 1 An an DT 40404 4473 2 important important JJ 40404 4473 3 factor factor NN 40404 4473 4 in in IN 40404 4473 5 the the DT 40404 4473 6 deformation deformation NN 40404 4473 7 was be VBD 40404 4473 8 the the DT 40404 4473 9 massive massive JJ 40404 4473 10 limestones limestone NNS 40404 4473 11 of of IN 40404 4473 12 the the DT 40404 4473 13 Cambrian Cambrian NNP 40404 4473 14 - - HYPH 40404 4473 15 Ordovician Ordovician NNP 40404 4473 16 . . . 40404 4474 1 Because because IN 40404 4474 2 of of IN 40404 4474 3 these these DT 40404 4474 4 thick thick JJ 40404 4474 5 , , , 40404 4474 6 resistant resistant JJ 40404 4474 7 beds bed NNS 40404 4474 8 the the DT 40404 4474 9 rocks rock NNS 40404 4474 10 were be VBD 40404 4474 11 bent bent JJ 40404 4474 12 into into IN 40404 4474 13 wide wide JJ 40404 4474 14 folds fold NNS 40404 4474 15 and and CC 40404 4474 16 sheared shear VBD 40404 4474 17 in in IN 40404 4474 18 places place NNS 40404 4474 19 with with IN 40404 4474 20 great great JJ 40404 4474 21 thrust thrust JJ 40404 4474 22 faults fault NNS 40404 4474 23 . . . 40404 4475 1 Had have VBD 40404 4475 2 the the DT 40404 4475 3 strata strata NN 40404 4475 4 been be VBN 40404 4475 5 weak weak JJ 40404 4475 6 shales shale NNS 40404 4475 7 , , , 40404 4475 8 an an DT 40404 4475 9 equal equal JJ 40404 4475 10 pressure pressure NN 40404 4475 11 would would MD 40404 4475 12 have have VB 40404 4475 13 crushed crush VBN 40404 4475 14 and and CC 40404 4475 15 mashed mash VBN 40404 4475 16 them -PRON- PRP 40404 4475 17 . . . 40404 4476 1 Although although IN 40404 4476 2 the the DT 40404 4476 3 great great JJ 40404 4476 4 earth earth NN 40404 4476 5 folds fold NNS 40404 4476 6 were be VBD 40404 4476 7 slowly slowly RB 40404 4476 8 raised raise VBN 40404 4476 9 , , , 40404 4476 10 and and CC 40404 4476 11 no no RB 40404 4476 12 doubt doubt RB 40404 4476 13 eroded erode VBN 40404 4476 14 in in IN 40404 4476 15 their -PRON- PRP$ 40404 4476 16 rising rising NN 40404 4476 17 , , , 40404 4476 18 they -PRON- PRP 40404 4476 19 formed form VBD 40404 4476 20 in in IN 40404 4476 21 all all DT 40404 4476 22 probability probability NN 40404 4476 23 a a DT 40404 4476 24 range range NN 40404 4476 25 of of IN 40404 4476 26 lofty lofty JJ 40404 4476 27 mountains mountain NNS 40404 4476 28 , , , 40404 4476 29 with with IN 40404 4476 30 a a DT 40404 4476 31 width width NN 40404 4476 32 of of IN 40404 4476 33 from from IN 40404 4476 34 fifty fifty CD 40404 4476 35 to to IN 40404 4476 36 a a DT 40404 4476 37 hundred hundred CD 40404 4476 38 and and CC 40404 4476 39 twenty twenty CD 40404 4476 40 - - HYPH 40404 4476 41 five five CD 40404 4476 42 miles mile NNS 40404 4476 43 , , , 40404 4476 44 which which WDT 40404 4476 45 stretched stretch VBD 40404 4476 46 from from IN 40404 4476 47 New New NNP 40404 4476 48 York York NNP 40404 4476 49 to to IN 40404 4476 50 central central JJ 40404 4476 51 Alabama Alabama NNP 40404 4476 52 . . . 40404 4477 1 From from IN 40404 4477 2 their -PRON- PRP$ 40404 4477 3 bases basis NNS 40404 4477 4 lowlands lowland NNS 40404 4477 5 extended extend VBN 40404 4477 6 westward westward RB 40404 4477 7 to to IN 40404 4477 8 beyond beyond IN 40404 4477 9 the the DT 40404 4477 10 Missouri Missouri NNP 40404 4477 11 River River NNP 40404 4477 12 . . . 40404 4478 1 At at IN 40404 4478 2 the the DT 40404 4478 3 same same JJ 40404 4478 4 time time NN 40404 4478 5 ranges range NNS 40404 4478 6 were be VBD 40404 4478 7 upridged upridge VBN 40404 4478 8 out out IN 40404 4478 9 of of IN 40404 4478 10 thick thick JJ 40404 4478 11 Paleozoic Paleozoic NNP 40404 4478 12 sediments sediment NNS 40404 4478 13 both both DT 40404 4478 14 in in IN 40404 4478 15 the the DT 40404 4478 16 Bay Bay NNP 40404 4478 17 of of IN 40404 4478 18 Fundy Fundy NNP 40404 4478 19 region region NN 40404 4478 20 and and CC 40404 4478 21 in in IN 40404 4478 22 the the DT 40404 4478 23 Indian Indian NNP 40404 4478 24 Territory Territory NNP 40404 4478 25 . . . 40404 4479 1 The the DT 40404 4479 2 eastern eastern JJ 40404 4479 3 portion portion NN 40404 4479 4 of of IN 40404 4479 5 the the DT 40404 4479 6 North north JJ 40404 4479 7 American american JJ 40404 4479 8 continent continent NN 40404 4479 9 was be VBD 40404 4479 10 now now RB 40404 4479 11 well well JJ 40404 4479 12 - - HYPH 40404 4479 13 nigh nigh NN 40404 4479 14 complete complete JJ 40404 4479 15 . . . 40404 4480 1 The the DT 40404 4480 2 date date NN 40404 4480 3 of of IN 40404 4480 4 the the DT 40404 4480 5 Appalachian appalachian JJ 40404 4480 6 deformation deformation NN 40404 4480 7 is be VBZ 40404 4480 8 told tell VBN 40404 4480 9 in in IN 40404 4480 10 the the DT 40404 4480 11 usual usual JJ 40404 4480 12 way way NN 40404 4480 13 . . . 40404 4481 1 The the DT 40404 4481 2 Carboniferous carboniferous JJ 40404 4481 3 strata strata NN 40404 4481 4 , , , 40404 4481 5 nearly nearly RB 40404 4481 6 two two CD 40404 4481 7 miles mile NNS 40404 4481 8 thick thick JJ 40404 4481 9 , , , 40404 4481 10 are be VBP 40404 4481 11 all all DT 40404 4481 12 infolded infolde VBN 40404 4481 13 in in IN 40404 4481 14 the the DT 40404 4481 15 Appalachian appalachian JJ 40404 4481 16 ridges ridge NNS 40404 4481 17 , , , 40404 4481 18 while while IN 40404 4481 19 the the DT 40404 4481 20 next next JJ 40404 4481 21 deposits deposit NNS 40404 4481 22 found find VBN 40404 4481 23 in in IN 40404 4481 24 this this DT 40404 4481 25 region region NN 40404 4481 26 -- -- : 40404 4481 27 those those DT 40404 4481 28 of of IN 40404 4481 29 the the DT 40404 4481 30 later later JJ 40404 4481 31 portion portion NN 40404 4481 32 of of IN 40404 4481 33 the the DT 40404 4481 34 first first JJ 40404 4481 35 period period NN 40404 4481 36 ( ( -LRB- 40404 4481 37 the the DT 40404 4481 38 Trias Trias NNP 40404 4481 39 ) ) -RRB- 40404 4481 40 of of IN 40404 4481 41 the the DT 40404 4481 42 succeeding succeed VBG 40404 4481 43 era era NN 40404 4481 44 -- -- : 40404 4481 45 rest rest NN 40404 4481 46 unconformably unconformably RB 40404 4481 47 on on IN 40404 4481 48 the the DT 40404 4481 49 worn worn JJ 40404 4481 50 edges edge NNS 40404 4481 51 of of IN 40404 4481 52 the the DT 40404 4481 53 Appalachian Appalachian NNP 40404 4481 54 folded fold VBN 40404 4481 55 strata strata NN 40404 4481 56 . . . 40404 4482 1 The the DT 40404 4482 2 deformation deformation NN 40404 4482 3 therefore therefore RB 40404 4482 4 took take VBD 40404 4482 5 place place NN 40404 4482 6 about about IN 40404 4482 7 the the DT 40404 4482 8 close close NN 40404 4482 9 of of IN 40404 4482 10 the the DT 40404 4482 11 Paleozoic Paleozoic NNP 40404 4482 12 . . . 40404 4483 1 It -PRON- PRP 40404 4483 2 seems seem VBZ 40404 4483 3 to to TO 40404 4483 4 have have VB 40404 4483 5 begun begin VBN 40404 4483 6 in in IN 40404 4483 7 the the DT 40404 4483 8 Permian Permian NNP 40404 4483 9 , , , 40404 4483 10 in in IN 40404 4483 11 , , , 40404 4483 12 eastern eastern NNP 40404 4483 13 Pennsylvania,--for Pennsylvania,--for NNP 40404 4483 14 here here RB 40404 4483 15 the the DT 40404 4483 16 Permian permian JJ 40404 4483 17 strata strata NN 40404 4483 18 are be VBP 40404 4483 19 wanting,--and wanting,--and JJ 40404 4483 20 to to TO 40404 4483 21 have have VB 40404 4483 22 continued continue VBN 40404 4483 23 into into IN 40404 4483 24 the the DT 40404 4483 25 Trias Trias NNPS 40404 4483 26 , , , 40404 4483 27 whose whose WP$ 40404 4483 28 earlier early JJR 40404 4483 29 formations formation NNS 40404 4483 30 are be VBP 40404 4483 31 absent absent JJ 40404 4483 32 over over IN 40404 4483 33 all all PDT 40404 4483 34 the the DT 40404 4483 35 area area NN 40404 4483 36 . . . 40404 4484 1 With with IN 40404 4484 2 this this DT 40404 4484 3 wide wide JJ 40404 4484 4 uplift uplift NN 40404 4484 5 the the DT 40404 4484 6 subsidence subsidence NN 40404 4484 7 of of IN 40404 4484 8 the the DT 40404 4484 9 sea sea NN 40404 4484 10 floor floor NN 40404 4484 11 which which WDT 40404 4484 12 had have VBD 40404 4484 13 so so RB 40404 4484 14 long long RB 40404 4484 15 been be VBN 40404 4484 16 general general JJ 40404 4484 17 in in IN 40404 4484 18 eastern eastern JJ 40404 4484 19 North North NNP 40404 4484 20 America America NNP 40404 4484 21 came come VBD 40404 4484 22 to to IN 40404 4484 23 an an DT 40404 4484 24 end end NN 40404 4484 25 . . . 40404 4485 1 Deposition Deposition NNP 40404 4485 2 now now RB 40404 4485 3 gave give VBD 40404 4485 4 place place NN 40404 4485 5 to to IN 40404 4485 6 erosion erosion NN 40404 4485 7 . . . 40404 4486 1 The the DT 40404 4486 2 sedimentary sedimentary JJ 40404 4486 3 record record NN 40404 4486 4 of of IN 40404 4486 5 the the DT 40404 4486 6 Paleozoic Paleozoic NNP 40404 4486 7 was be VBD 40404 4486 8 closed closed JJ 40404 4486 9 , , , 40404 4486 10 and and CC 40404 4486 11 after after IN 40404 4486 12 an an DT 40404 4486 13 unknown unknown JJ 40404 4486 14 lapse lapse NN 40404 4486 15 of of IN 40404 4486 16 time time NN 40404 4486 17 , , , 40404 4486 18 here here RB 40404 4486 19 unrecorded unrecorded JJ 40404 4486 20 , , , 40404 4486 21 the the DT 40404 4486 22 annals annal NNS 40404 4486 23 of of IN 40404 4486 24 the the DT 40404 4486 25 succeeding succeed VBG 40404 4486 26 era era NN 40404 4486 27 were be VBD 40404 4486 28 written write VBN 40404 4486 29 under under IN 40404 4486 30 changed change VBN 40404 4486 31 conditions condition NNS 40404 4486 32 . . . 40404 4487 1 In in IN 40404 4487 2 western western JJ 40404 4487 3 North North NNP 40404 4487 4 America America NNP 40404 4487 5 the the DT 40404 4487 6 closing closing NN 40404 4487 7 stages stage NNS 40404 4487 8 of of IN 40404 4487 9 the the DT 40404 4487 10 Paleozoic Paleozoic NNP 40404 4487 11 were be VBD 40404 4487 12 marked mark VBN 40404 4487 13 by by IN 40404 4487 14 important important JJ 40404 4487 15 oscillations oscillation NNS 40404 4487 16 . . . 40404 4488 1 The the DT 40404 4488 2 Great Great NNP 40404 4488 3 Basin Basin NNP 40404 4488 4 , , , 40404 4488 5 which which WDT 40404 4488 6 had have VBD 40404 4488 7 long long RB 40404 4488 8 been be VBN 40404 4488 9 a a DT 40404 4488 10 mediterranean mediterranean NNP 40404 4488 11 sea sea NN 40404 4488 12 , , , 40404 4488 13 was be VBD 40404 4488 14 converted convert VBN 40404 4488 15 into into IN 40404 4488 16 land land NN 40404 4488 17 over over IN 40404 4488 18 western western JJ 40404 4488 19 Utah Utah NNP 40404 4488 20 and and CC 40404 4488 21 eastern eastern JJ 40404 4488 22 Nevada Nevada NNP 40404 4488 23 , , , 40404 4488 24 while while IN 40404 4488 25 the the DT 40404 4488 26 waves wave NNS 40404 4488 27 of of IN 40404 4488 28 the the DT 40404 4488 29 Pacific Pacific NNP 40404 4488 30 rolled roll VBD 40404 4488 31 across across IN 40404 4488 32 California California NNP 40404 4488 33 and and CC 40404 4488 34 western western JJ 40404 4488 35 Nevada Nevada NNP 40404 4488 36 . . . 40404 4489 1 The the DT 40404 4489 2 absence absence NN 40404 4489 3 of of IN 40404 4489 4 tuffs tuff NNS 40404 4489 5 and and CC 40404 4489 6 lavas lavas NN 40404 4489 7 among among IN 40404 4489 8 the the DT 40404 4489 9 Carboniferous carboniferous JJ 40404 4489 10 strata strata NN 40404 4489 11 of of IN 40404 4489 12 North North NNP 40404 4489 13 America America NNP 40404 4489 14 shows show VBZ 40404 4489 15 that that IN 40404 4489 16 here here RB 40404 4489 17 volcanic volcanic JJ 40404 4489 18 action action NN 40404 4489 19 was be VBD 40404 4489 20 singularly singularly RB 40404 4489 21 wanting want VBG 40404 4489 22 during during IN 40404 4489 23 the the DT 40404 4489 24 entire entire JJ 40404 4489 25 period period NN 40404 4489 26 . . . 40404 4490 1 Even even RB 40404 4490 2 the the DT 40404 4490 3 Appalachian appalachian JJ 40404 4490 4 deformation deformation NN 40404 4490 5 was be VBD 40404 4490 6 not not RB 40404 4490 7 accompanied accompany VBN 40404 4490 8 by by IN 40404 4490 9 any any DT 40404 4490 10 volcanic volcanic JJ 40404 4490 11 outbursts outburst NNS 40404 4490 12 . . . 40404 4491 1 [ [ -LRB- 40404 4491 2 Illustration illustration NN 40404 4491 3 : : : 40404 4491 4 Fig Fig NNP 40404 4491 5 . . . 40404 4492 1 305 305 CD 40404 4492 2 . . . 40404 4493 1 Carboniferous Carboniferous NNP 40404 4493 2 Ferns fern NNS 40404 4493 3 ] ] -RRB- 40404 4493 4 [ [ -LRB- 40404 4493 5 Illustration illustration NN 40404 4493 6 : : : 40404 4493 7 Fig Fig NNP 40404 4493 8 . . . 40404 4494 1 306 306 CD 40404 4494 2 . . . 40404 4495 1 Calamites Calamites NNPS 40404 4495 2 ] ] -RRB- 40404 4495 3 Life life NN 40404 4495 4 of of IN 40404 4495 5 the the DT 40404 4495 6 Carboniferous Carboniferous NNP 40404 4495 7 = = SYM 40404 4495 8 Plants.= Plants.= NNP 40404 4495 9 The the DT 40404 4495 10 gloomy gloomy JJ 40404 4495 11 forests forest NNS 40404 4495 12 and and CC 40404 4495 13 dense dense JJ 40404 4495 14 undergrowths undergrowth NNS 40404 4495 15 of of IN 40404 4495 16 the the DT 40404 4495 17 Carboniferous carboniferous JJ 40404 4495 18 jungles jungle NNS 40404 4495 19 would would MD 40404 4495 20 appear appear VB 40404 4495 21 unfamiliar unfamiliar JJ 40404 4495 22 to to IN 40404 4495 23 us -PRON- PRP 40404 4495 24 could could MD 40404 4495 25 we -PRON- PRP 40404 4495 26 see see VB 40404 4495 27 them -PRON- PRP 40404 4495 28 as as IN 40404 4495 29 they -PRON- PRP 40404 4495 30 grew grow VBD 40404 4495 31 , , , 40404 4495 32 and and CC 40404 4495 33 even even RB 40404 4495 34 a a DT 40404 4495 35 botanist botanist NN 40404 4495 36 would would MD 40404 4495 37 find find VB 40404 4495 38 many many JJ 40404 4495 39 of of IN 40404 4495 40 their -PRON- PRP$ 40404 4495 41 forms form NNS 40404 4495 42 perplexing perplex VBG 40404 4495 43 and and CC 40404 4495 44 hard hard JJ 40404 4495 45 to to TO 40404 4495 46 classify classify VB 40404 4495 47 . . . 40404 4496 1 None none NN 40404 4496 2 of of IN 40404 4496 3 our -PRON- PRP$ 40404 4496 4 modern modern JJ 40404 4496 5 trees tree NNS 40404 4496 6 would would MD 40404 4496 7 meet meet VB 40404 4496 8 the the DT 40404 4496 9 eye eye NN 40404 4496 10 . . . 40404 4497 1 Plants plant NNS 40404 4497 2 with with IN 40404 4497 3 conspicuous conspicuous JJ 40404 4497 4 flowers flower NNS 40404 4497 5 of of IN 40404 4497 6 fragrance fragrance NN 40404 4497 7 and and CC 40404 4497 8 beauty beauty NN 40404 4497 9 were be VBD 40404 4497 10 yet yet RB 40404 4497 11 to to TO 40404 4497 12 come come VB 40404 4497 13 . . . 40404 4498 1 Even even RB 40404 4498 2 mosses moss NNS 40404 4498 3 and and CC 40404 4498 4 grasses grass NNS 40404 4498 5 were be VBD 40404 4498 6 still still RB 40404 4498 7 absent absent JJ 40404 4498 8 . . . 40404 4499 1 Tree tree NN 40404 4499 2 ferns fern NNS 40404 4499 3 lifted lift VBD 40404 4499 4 their -PRON- PRP$ 40404 4499 5 crowns crown NNS 40404 4499 6 of of IN 40404 4499 7 feathery feathery NN 40404 4499 8 fronds frond VBZ 40404 4499 9 high high JJ 40404 4499 10 in in IN 40404 4499 11 air air NN 40404 4499 12 on on IN 40404 4499 13 trunks trunk NNS 40404 4499 14 of of IN 40404 4499 15 woody woody NN 40404 4499 16 tissue tissue NN 40404 4499 17 ; ; : 40404 4499 18 and and CC 40404 4499 19 lowly lowly VBZ 40404 4499 20 herbaceous herbaceous JJ 40404 4499 21 ferns fern NNS 40404 4499 22 , , , 40404 4499 23 some some DT 40404 4499 24 belonging belong VBG 40404 4499 25 to to IN 40404 4499 26 existing exist VBG 40404 4499 27 families family NNS 40404 4499 28 , , , 40404 4499 29 carpeted carpet VBD 40404 4499 30 the the DT 40404 4499 31 ground ground NN 40404 4499 32 . . . 40404 4500 1 Many many JJ 40404 4500 2 of of IN 40404 4500 3 the the DT 40404 4500 4 fernlike fernlike NN 40404 4500 5 forms form NNS 40404 4500 6 , , , 40404 4500 7 however however RB 40404 4500 8 , , , 40404 4500 9 have have VBP 40404 4500 10 distinct distinct JJ 40404 4500 11 affinities affinity NNS 40404 4500 12 with with IN 40404 4500 13 the the DT 40404 4500 14 cycads cycad NNS 40404 4500 15 , , , 40404 4500 16 of of IN 40404 4500 17 which which WDT 40404 4500 18 they -PRON- PRP 40404 4500 19 may may MD 40404 4500 20 be be VB 40404 4500 21 the the DT 40404 4500 22 ancestors ancestor NNS 40404 4500 23 , , , 40404 4500 24 and and CC 40404 4500 25 some some DT 40404 4500 26 bear bear NN 40404 4500 27 seeds seed NNS 40404 4500 28 and and CC 40404 4500 29 must must MD 40404 4500 30 be be VB 40404 4500 31 classed class VBN 40404 4500 32 as as IN 40404 4500 33 gymnosperms gymnosperm NNS 40404 4500 34 . . . 40404 4501 1 Dense dense JJ 40404 4501 2 thickets thicket NNS 40404 4501 3 , , , 40404 4501 4 like like IN 40404 4501 5 cane cane NN 40404 4501 6 or or CC 40404 4501 7 bamboo bamboo NN 40404 4501 8 brakes brake NNS 40404 4501 9 , , , 40404 4501 10 were be VBD 40404 4501 11 composed compose VBN 40404 4501 12 of of IN 40404 4501 13 thick thick JJ 40404 4501 14 clumps clump NNS 40404 4501 15 of of IN 40404 4501 16 _ _ NNP 40404 4501 17 Calamites Calamites NNP 40404 4501 18 _ _ NNP 40404 4501 19 , , , 40404 4501 20 whose whose WP$ 40404 4501 21 slender slender NN 40404 4501 22 , , , 40404 4501 23 jointed jointed JJ 40404 4501 24 stems stems NNPS 40404 4501 25 shot shoot VBD 40404 4501 26 up up RB 40404 4501 27 to to IN 40404 4501 28 a a DT 40404 4501 29 height height NN 40404 4501 30 of of IN 40404 4501 31 forty forty CD 40404 4501 32 feet foot NNS 40404 4501 33 , , , 40404 4501 34 and and CC 40404 4501 35 at at IN 40404 4501 36 the the DT 40404 4501 37 joints joint NNS 40404 4501 38 bore bear VBD 40404 4501 39 slender slender NN 40404 4501 40 branches branch NNS 40404 4501 41 set set VBN 40404 4501 42 with with IN 40404 4501 43 whorls whorls NN 40404 4501 44 of of IN 40404 4501 45 leaves leave NNS 40404 4501 46 . . . 40404 4502 1 These these DT 40404 4502 2 were be VBD 40404 4502 3 close close JJ 40404 4502 4 allies ally NNS 40404 4502 5 of of IN 40404 4502 6 the the DT 40404 4502 7 Equiseta Equiseta NNP 40404 4502 8 or or CC 40404 4502 9 " " `` 40404 4502 10 horsetails horsetail NNS 40404 4502 11 , , , 40404 4502 12 " " '' 40404 4502 13 of of IN 40404 4502 14 the the DT 40404 4502 15 present present NN 40404 4502 16 ; ; : 40404 4502 17 but but CC 40404 4502 18 they -PRON- PRP 40404 4502 19 bore bear VBD 40404 4502 20 characteristics characteristic NNS 40404 4502 21 of of IN 40404 4502 22 higher high JJR 40404 4502 23 classes class NNS 40404 4502 24 in in IN 40404 4502 25 the the DT 40404 4502 26 woody woody NN 40404 4502 27 structures structure NNS 40404 4502 28 of of IN 40404 4502 29 their -PRON- PRP$ 40404 4502 30 stems stem NNS 40404 4502 31 . . . 40404 4503 1 There there EX 40404 4503 2 were be VBD 40404 4503 3 also also RB 40404 4503 4 vast vast JJ 40404 4503 5 monotonous monotonous JJ 40404 4503 6 forests forest NNS 40404 4503 7 , , , 40404 4503 8 composed compose VBN 40404 4503 9 chiefly chiefly RB 40404 4503 10 of of IN 40404 4503 11 trees tree NNS 40404 4503 12 belonging belong VBG 40404 4503 13 to to IN 40404 4503 14 the the DT 40404 4503 15 lycopods lycopod NNS 40404 4503 16 , , , 40404 4503 17 and and CC 40404 4503 18 whose whose WP$ 40404 4503 19 nearest near JJS 40404 4503 20 relatives relative NNS 40404 4503 21 to to IN 40404 4503 22 - - HYPH 40404 4503 23 day day NN 40404 4503 24 are be VBP 40404 4503 25 the the DT 40404 4503 26 little little JJ 40404 4503 27 club club NN 40404 4503 28 mosses moss NNS 40404 4503 29 of of IN 40404 4503 30 our -PRON- PRP$ 40404 4503 31 eastern eastern JJ 40404 4503 32 woods wood NNS 40404 4503 33 . . . 40404 4504 1 Two two CD 40404 4504 2 families family NNS 40404 4504 3 of of IN 40404 4504 4 lycopods lycopod NNS 40404 4504 5 deserve deserve VBP 40404 4504 6 special special JJ 40404 4504 7 mention,--the mention,--the NNP 40404 4504 8 Lepidodendrons Lepidodendrons NNPS 40404 4504 9 and and CC 40404 4504 10 the the DT 40404 4504 11 Sigillaria Sigillaria NNP 40404 4504 12 . . . 40404 4505 1 [ [ -LRB- 40404 4505 2 Illustration illustration NN 40404 4505 3 : : : 40404 4505 4 Fig Fig NNP 40404 4505 5 . . . 40404 4506 1 307 307 CD 40404 4506 2 . . . 40404 4507 1 Lepidodendron Lepidodendron NNP 40404 4507 2 ] ] -RRB- 40404 4507 3 [ [ -LRB- 40404 4507 4 Illustration illustration NN 40404 4507 5 : : : 40404 4507 6 Fig Fig NNP 40404 4507 7 . . . 40404 4508 1 308 308 CD 40404 4508 2 . . . 40404 4509 1 Sigillaria Sigillaria NNP 40404 4509 2 ] ] -RRB- 40404 4509 3 The the DT 40404 4509 4 _ _ NNP 40404 4509 5 Lepidodendron Lepidodendron NNP 40404 4509 6 _ _ NNP 40404 4509 7 , , , 40404 4509 8 or or CC 40404 4509 9 " " `` 40404 4509 10 scale scale NN 40404 4509 11 tree tree NN 40404 4509 12 , , , 40404 4509 13 " " '' 40404 4509 14 was be VBD 40404 4509 15 a a DT 40404 4509 16 gigantic gigantic JJ 40404 4509 17 club club NN 40404 4509 18 moss moss NN 40404 4509 19 fifty fifty CD 40404 4509 20 and and CC 40404 4509 21 seventy seventy CD 40404 4509 22 - - HYPH 40404 4509 23 five five CD 40404 4509 24 feet foot NNS 40404 4509 25 high high JJ 40404 4509 26 , , , 40404 4509 27 spreading spread VBG 40404 4509 28 toward toward IN 40404 4509 29 the the DT 40404 4509 30 top top NN 40404 4509 31 into into IN 40404 4509 32 stout stout JJ 40404 4509 33 branches branch NNS 40404 4509 34 , , , 40404 4509 35 at at IN 40404 4509 36 whose whose WP$ 40404 4509 37 ends end NNS 40404 4509 38 were be VBD 40404 4509 39 borne bear VBN 40404 4509 40 cone cone NN 40404 4509 41 - - HYPH 40404 4509 42 shaped shape VBN 40404 4509 43 spore spore NN 40404 4509 44 cases case NNS 40404 4509 45 . . . 40404 4510 1 The the DT 40404 4510 2 younger young JJR 40404 4510 3 parts part NNS 40404 4510 4 of of IN 40404 4510 5 the the DT 40404 4510 6 tree tree NN 40404 4510 7 were be VBD 40404 4510 8 clothed clothe VBN 40404 4510 9 with with IN 40404 4510 10 stiff stiff JJ 40404 4510 11 needle needle NN 40404 4510 12 - - HYPH 40404 4510 13 shaped shape VBN 40404 4510 14 leaves leave NNS 40404 4510 15 , , , 40404 4510 16 but but CC 40404 4510 17 elsewhere elsewhere RB 40404 4510 18 the the DT 40404 4510 19 trunk trunk NN 40404 4510 20 and and CC 40404 4510 21 branches branch NNS 40404 4510 22 were be VBD 40404 4510 23 marked mark VBN 40404 4510 24 with with IN 40404 4510 25 scalelike scalelike NN 40404 4510 26 scars scar NNS 40404 4510 27 , , , 40404 4510 28 left leave VBN 40404 4510 29 by by IN 40404 4510 30 the the DT 40404 4510 31 fallen fall VBN 40404 4510 32 leaves leave NNS 40404 4510 33 , , , 40404 4510 34 and and CC 40404 4510 35 arranged arrange VBN 40404 4510 36 in in IN 40404 4510 37 spiral spiral JJ 40404 4510 38 rows row NNS 40404 4510 39 . . . 40404 4511 1 The the DT 40404 4511 2 _ _ NNP 40404 4511 3 Sigillaria Sigillaria NNP 40404 4511 4 _ _ NNP 40404 4511 5 , , , 40404 4511 6 or or CC 40404 4511 7 " " `` 40404 4511 8 seal seal NN 40404 4511 9 tree tree NN 40404 4511 10 , , , 40404 4511 11 " " '' 40404 4511 12 was be VBD 40404 4511 13 similar similar JJ 40404 4511 14 to to IN 40404 4511 15 the the DT 40404 4511 16 Lepidodendron Lepidodendron NNP 40404 4511 17 , , , 40404 4511 18 but but CC 40404 4511 19 its -PRON- PRP$ 40404 4511 20 fluted fluted JJ 40404 4511 21 trunk trunk NN 40404 4511 22 divided divide VBN 40404 4511 23 into into IN 40404 4511 24 even even RB 40404 4511 25 fewer few JJR 40404 4511 26 branches branch NNS 40404 4511 27 , , , 40404 4511 28 and and CC 40404 4511 29 was be VBD 40404 4511 30 dotted dotted JJ 40404 4511 31 with with IN 40404 4511 32 vertical vertical JJ 40404 4511 33 rows row NNS 40404 4511 34 of of IN 40404 4511 35 leaf leaf NN 40404 4511 36 scars scar NNS 40404 4511 37 , , , 40404 4511 38 like like IN 40404 4511 39 the the DT 40404 4511 40 impressions impression NNS 40404 4511 41 of of IN 40404 4511 42 a a DT 40404 4511 43 seal seal NN 40404 4511 44 . . . 40404 4512 1 Both both DT 40404 4512 2 Lepidodendron Lepidodendron NNP 40404 4512 3 and and CC 40404 4512 4 Sigillaria Sigillaria NNP 40404 4512 5 were be VBD 40404 4512 6 anchored anchor VBN 40404 4512 7 by by IN 40404 4512 8 means mean NNS 40404 4512 9 of of IN 40404 4512 10 great great JJ 40404 4512 11 cablelike cablelike NNP 40404 4512 12 underground underground NNP 40404 4512 13 stems stems NNPS 40404 4512 14 , , , 40404 4512 15 which which WDT 40404 4512 16 ran run VBD 40404 4512 17 to to IN 40404 4512 18 long long JJ 40404 4512 19 distances distance NNS 40404 4512 20 through through IN 40404 4512 21 the the DT 40404 4512 22 marshy marshy JJ 40404 4512 23 ground ground NN 40404 4512 24 . . . 40404 4513 1 The the DT 40404 4513 2 trunks trunk NNS 40404 4513 3 of of IN 40404 4513 4 both both DT 40404 4513 5 trees tree NNS 40404 4513 6 had have VBD 40404 4513 7 a a DT 40404 4513 8 thick thick JJ 40404 4513 9 woody woody NN 40404 4513 10 rind rind NN 40404 4513 11 , , , 40404 4513 12 inclosing inclose VBG 40404 4513 13 loose loose JJ 40404 4513 14 cellular cellular JJ 40404 4513 15 tissue tissue NN 40404 4513 16 and and CC 40404 4513 17 a a DT 40404 4513 18 pith pith NN 40404 4513 19 . . . 40404 4514 1 Their -PRON- PRP$ 40404 4514 2 hollow hollow JJ 40404 4514 3 stumps stump NNS 40404 4514 4 , , , 40404 4514 5 filled fill VBN 40404 4514 6 with with IN 40404 4514 7 sand sand NN 40404 4514 8 and and CC 40404 4514 9 mud mud NN 40404 4514 10 , , , 40404 4514 11 are be VBP 40404 4514 12 common common JJ 40404 4514 13 in in IN 40404 4514 14 the the DT 40404 4514 15 Coal Coal NNP 40404 4514 16 Measures Measures NNPS 40404 4514 17 , , , 40404 4514 18 and and CC 40404 4514 19 in in IN 40404 4514 20 them -PRON- PRP 40404 4514 21 one one NN 40404 4514 22 sometimes sometimes RB 40404 4514 23 finds find VBZ 40404 4514 24 leaves leave NNS 40404 4514 25 and and CC 40404 4514 26 stems stem NNS 40404 4514 27 , , , 40404 4514 28 land land NN 40404 4514 29 shells shell NNS 40404 4514 30 , , , 40404 4514 31 and and CC 40404 4514 32 the the DT 40404 4514 33 bones bone NNS 40404 4514 34 of of IN 40404 4514 35 little little JJ 40404 4514 36 reptiles reptile NNS 40404 4514 37 of of IN 40404 4514 38 the the DT 40404 4514 39 time time NN 40404 4514 40 which which WDT 40404 4514 41 made make VBD 40404 4514 42 their -PRON- PRP$ 40404 4514 43 home home NN 40404 4514 44 there there RB 40404 4514 45 . . . 40404 4515 1 It -PRON- PRP 40404 4515 2 is be VBZ 40404 4515 3 important important JJ 40404 4515 4 to to TO 40404 4515 5 note note VB 40404 4515 6 that that IN 40404 4515 7 some some DT 40404 4515 8 of of IN 40404 4515 9 these these DT 40404 4515 10 gigantic gigantic JJ 40404 4515 11 lycopods lycopod NNS 40404 4515 12 , , , 40404 4515 13 which which WDT 40404 4515 14 are be VBP 40404 4515 15 classed class VBN 40404 4515 16 with with IN 40404 4515 17 the the DT 40404 4515 18 _ _ NNP 40404 4515 19 cryptogams cryptogam NNS 40404 4515 20 _ _ NNP 40404 4515 21 , , , 40404 4515 22 or or CC 40404 4515 23 flowerless flowerless NN 40404 4515 24 plants plant NNS 40404 4515 25 , , , 40404 4515 26 had have VBD 40404 4515 27 pith pith NNP 40404 4515 28 and and CC 40404 4515 29 medullary medullary JJ 40404 4515 30 rays ray NNS 40404 4515 31 dividing divide VBG 40404 4515 32 their -PRON- PRP$ 40404 4515 33 cylinders cylinder NNS 40404 4515 34 into into IN 40404 4515 35 woody woody NN 40404 4515 36 wedges wedge NNS 40404 4515 37 . . . 40404 4516 1 These these DT 40404 4516 2 characters character NNS 40404 4516 3 connect connect VBP 40404 4516 4 them -PRON- PRP 40404 4516 5 with with IN 40404 4516 6 the the DT 40404 4516 7 _ _ NNP 40404 4516 8 phanerogams phanerogam NNS 40404 4516 9 _ _ NNP 40404 4516 10 , , , 40404 4516 11 or or CC 40404 4516 12 flowering flower VBG 40404 4516 13 plants plant NNS 40404 4516 14 . . . 40404 4517 1 Like like IN 40404 4517 2 so so RB 40404 4517 3 many many JJ 40404 4517 4 of of IN 40404 4517 5 the the DT 40404 4517 6 organisms organism NNS 40404 4517 7 of of IN 40404 4517 8 the the DT 40404 4517 9 remote remote JJ 40404 4517 10 past past NN 40404 4517 11 , , , 40404 4517 12 they -PRON- PRP 40404 4517 13 were be VBD 40404 4517 14 connecting connect VBG 40404 4517 15 types type NNS 40404 4517 16 from from IN 40404 4517 17 which which WDT 40404 4517 18 groups group NNS 40404 4517 19 now now RB 40404 4517 20 widely widely RB 40404 4517 21 separated separate VBN 40404 4517 22 have have VBP 40404 4517 23 diverged diverge VBN 40404 4517 24 . . . 40404 4518 1 Gymnosperms gymnosperm NNS 40404 4518 2 , , , 40404 4518 3 akin akin JJ 40404 4518 4 to to IN 40404 4518 5 the the DT 40404 4518 6 cycads cycad NNS 40404 4518 7 , , , 40404 4518 8 were be VBD 40404 4518 9 also also RB 40404 4518 10 present present JJ 40404 4518 11 in in IN 40404 4518 12 the the DT 40404 4518 13 Carboniferous carboniferous JJ 40404 4518 14 forests forest NNS 40404 4518 15 . . . 40404 4519 1 Such such JJ 40404 4519 2 were be VBD 40404 4519 3 the the DT 40404 4519 4 different different JJ 40404 4519 5 species specie NNS 40404 4519 6 of of IN 40404 4519 7 _ _ NNP 40404 4519 8 Cordaites Cordaites NNP 40404 4519 9 _ _ NNP 40404 4519 10 , , , 40404 4519 11 trees tree NNS 40404 4519 12 pyramidal pyramidal JJ 40404 4519 13 in in IN 40404 4519 14 shape shape NN 40404 4519 15 , , , 40404 4519 16 with with IN 40404 4519 17 strap strap NN 40404 4519 18 - - HYPH 40404 4519 19 shaped shape VBN 40404 4519 20 leaves leave NNS 40404 4519 21 and and CC 40404 4519 22 nutlike nutlike JJ 40404 4519 23 fruit fruit NN 40404 4519 24 . . . 40404 4520 1 Other other JJ 40404 4520 2 gymnosperms gymnosperm NNS 40404 4520 3 were be VBD 40404 4520 4 related relate VBN 40404 4520 5 to to IN 40404 4520 6 the the DT 40404 4520 7 yews yew NNS 40404 4520 8 , , , 40404 4520 9 and and CC 40404 4520 10 it -PRON- PRP 40404 4520 11 was be VBD 40404 4520 12 by by IN 40404 4520 13 these these DT 40404 4520 14 that that IN 40404 4520 15 many many JJ 40404 4520 16 of of IN 40404 4520 17 the the DT 40404 4520 18 fossil fossil JJ 40404 4520 19 nuts nut NNS 40404 4520 20 found find VBN 40404 4520 21 in in IN 40404 4520 22 the the DT 40404 4520 23 Coal Coal NNP 40404 4520 24 Measures Measures NNPS 40404 4520 25 were be VBD 40404 4520 26 borne bear VBN 40404 4520 27 . . . 40404 4521 1 It -PRON- PRP 40404 4521 2 is be VBZ 40404 4521 3 thought think VBN 40404 4521 4 by by IN 40404 4521 5 some some DT 40404 4521 6 that that WDT 40404 4521 7 the the DT 40404 4521 8 gymnosperms gymnosperm NNS 40404 4521 9 had have VBD 40404 4521 10 their -PRON- PRP$ 40404 4521 11 station station NN 40404 4521 12 on on IN 40404 4521 13 the the DT 40404 4521 14 drier drier NN 40404 4521 15 plains plain NNS 40404 4521 16 and and CC 40404 4521 17 higher high JJR 40404 4521 18 lands land NNS 40404 4521 19 . . . 40404 4522 1 The the DT 40404 4522 2 Carboniferous carboniferous JJ 40404 4522 3 jungles jungle NNS 40404 4522 4 extended extend VBD 40404 4522 5 over over IN 40404 4522 6 parts part NNS 40404 4522 7 of of IN 40404 4522 8 Europe Europe NNP 40404 4522 9 and and CC 40404 4522 10 of of IN 40404 4522 11 Asia Asia NNP 40404 4522 12 , , , 40404 4522 13 as as RB 40404 4522 14 well well RB 40404 4522 15 as as IN 40404 4522 16 eastern eastern JJ 40404 4522 17 North North NNP 40404 4522 18 America America NNP 40404 4522 19 , , , 40404 4522 20 and and CC 40404 4522 21 reached reach VBD 40404 4522 22 from from IN 40404 4522 23 the the DT 40404 4522 24 equator equator NN 40404 4522 25 to to IN 40404 4522 26 within within IN 40404 4522 27 nine nine CD 40404 4522 28 degrees degree NNS 40404 4522 29 of of IN 40404 4522 30 the the DT 40404 4522 31 north north NNP 40404 4522 32 pole pole NNP 40404 4522 33 . . . 40404 4523 1 Even even RB 40404 4523 2 in in IN 40404 4523 3 these these DT 40404 4523 4 widely widely RB 40404 4523 5 separated separated JJ 40404 4523 6 regions region NNS 40404 4523 7 the the DT 40404 4523 8 genera genera NN 40404 4523 9 and and CC 40404 4523 10 species specie NNS 40404 4523 11 of of IN 40404 4523 12 coal coal NN 40404 4523 13 plants plant NNS 40404 4523 14 are be VBP 40404 4523 15 close close RB 40404 4523 16 akin akin JJ 40404 4523 17 and and CC 40404 4523 18 often often RB 40404 4523 19 identical identical JJ 40404 4523 20 . . . 40404 4524 1 = = NFP 40404 4524 2 Invertebrates.= Invertebrates.= NNP 40404 4524 3 Among among IN 40404 4524 4 the the DT 40404 4524 5 echinoderms echinoderm NNS 40404 4524 6 , , , 40404 4524 7 crinoids crinoid NNS 40404 4524 8 are be VBP 40404 4524 9 now now RB 40404 4524 10 exceedingly exceedingly RB 40404 4524 11 abundant abundant JJ 40404 4524 12 , , , 40404 4524 13 sea sea NN 40404 4524 14 urchins urchin NNS 40404 4524 15 are be VBP 40404 4524 16 more more RBR 40404 4524 17 plentiful plentiful JJ 40404 4524 18 , , , 40404 4524 19 and and CC 40404 4524 20 sea sea NN 40404 4524 21 cucumbers cucumber NNS 40404 4524 22 are be VBP 40404 4524 23 found find VBN 40404 4524 24 now now RB 40404 4524 25 for for IN 40404 4524 26 the the DT 40404 4524 27 first first JJ 40404 4524 28 time time NN 40404 4524 29 . . . 40404 4525 1 Trilobites trilobite NNS 40404 4525 2 are be VBP 40404 4525 3 rapidly rapidly RB 40404 4525 4 declining decline VBG 40404 4525 5 , , , 40404 4525 6 and and CC 40404 4525 7 pass pass VB 40404 4525 8 away away RB 40404 4525 9 forever forever RB 40404 4525 10 with with IN 40404 4525 11 the the DT 40404 4525 12 close close NN 40404 4525 13 of of IN 40404 4525 14 the the DT 40404 4525 15 period period NN 40404 4525 16 . . . 40404 4526 1 Eurypterids eurypterid NNS 40404 4526 2 are be VBP 40404 4526 3 common common JJ 40404 4526 4 ; ; : 40404 4526 5 stinging stinging JJ 40404 4526 6 scorpions scorpion NNS 40404 4526 7 are be VBP 40404 4526 8 abundant abundant JJ 40404 4526 9 ; ; : 40404 4526 10 and and CC 40404 4526 11 here here RB 40404 4526 12 occur occur VB 40404 4526 13 the the DT 40404 4526 14 first first RB 40404 4526 15 - - HYPH 40404 4526 16 known know VBN 40404 4526 17 spiders spider NNS 40404 4526 18 . . . 40404 4527 1 We -PRON- PRP 40404 4527 2 have have VBP 40404 4527 3 seen see VBN 40404 4527 4 that that IN 40404 4527 5 the the DT 40404 4527 6 arthropods arthropod NNS 40404 4527 7 were be VBD 40404 4527 8 the the DT 40404 4527 9 first first JJ 40404 4527 10 of of IN 40404 4527 11 all all DT 40404 4527 12 animals animal NNS 40404 4527 13 to to TO 40404 4527 14 conquer conquer VB 40404 4527 15 the the DT 40404 4527 16 realm realm NN 40404 4527 17 of of IN 40404 4527 18 the the DT 40404 4527 19 air air NN 40404 4527 20 , , , 40404 4527 21 the the DT 40404 4527 22 earliest early JJS 40404 4527 23 insects insect NNS 40404 4527 24 appearing appear VBG 40404 4527 25 in in IN 40404 4527 26 the the DT 40404 4527 27 Ordovician Ordovician NNP 40404 4527 28 . . . 40404 4528 1 Insects insect NNS 40404 4528 2 had have VBD 40404 4528 3 now now RB 40404 4528 4 become become VBN 40404 4528 5 exceedingly exceedingly RB 40404 4528 6 abundant abundant JJ 40404 4528 7 , , , 40404 4528 8 and and CC 40404 4528 9 the the DT 40404 4528 10 Carboniferous carboniferous JJ 40404 4528 11 forests forest NNS 40404 4528 12 swarmed swarm VBN 40404 4528 13 with with IN 40404 4528 14 the the DT 40404 4528 15 ancestral ancestral JJ 40404 4528 16 types type NNS 40404 4528 17 of of IN 40404 4528 18 dragon dragon NN 40404 4528 19 flies,--some flies,--some , 40404 4528 20 with with IN 40404 4528 21 a a DT 40404 4528 22 spread spread NN 40404 4528 23 of of IN 40404 4528 24 wing wing NN 40404 4528 25 of of IN 40404 4528 26 more more JJR 40404 4528 27 than than IN 40404 4528 28 two two CD 40404 4528 29 feet,--May feet,--may JJ 40404 4528 30 flies fly NNS 40404 4528 31 , , , 40404 4528 32 crickets cricket NNS 40404 4528 33 , , , 40404 4528 34 and and CC 40404 4528 35 locusts locust NNS 40404 4528 36 . . . 40404 4529 1 Cockroaches cockroach NNS 40404 4529 2 infested infest VBD 40404 4529 3 the the DT 40404 4529 4 swamps swamp NNS 40404 4529 5 , , , 40404 4529 6 and and CC 40404 4529 7 one one CD 40404 4529 8 hundred hundred CD 40404 4529 9 and and CC 40404 4529 10 thirty thirty CD 40404 4529 11 - - HYPH 40404 4529 12 three three CD 40404 4529 13 species specie NNS 40404 4529 14 of of IN 40404 4529 15 this this DT 40404 4529 16 ancient ancient JJ 40404 4529 17 order order NN 40404 4529 18 have have VBP 40404 4529 19 been be VBN 40404 4529 20 discovered discover VBN 40404 4529 21 in in IN 40404 4529 22 the the DT 40404 4529 23 Carboniferous Carboniferous NNP 40404 4529 24 of of IN 40404 4529 25 North North NNP 40404 4529 26 America America NNP 40404 4529 27 . . . 40404 4530 1 The the DT 40404 4530 2 higher high JJR 40404 4530 3 flower flower NN 40404 4530 4 - - HYPH 40404 4530 5 loving love VBG 40404 4530 6 insects insect NNS 40404 4530 7 are be VBP 40404 4530 8 still still RB 40404 4530 9 absent absent JJ 40404 4530 10 ; ; : 40404 4530 11 the the DT 40404 4530 12 reign reign NN 40404 4530 13 of of IN 40404 4530 14 the the DT 40404 4530 15 flowering flower VBG 40404 4530 16 plants plant NNS 40404 4530 17 has have VBZ 40404 4530 18 not not RB 40404 4530 19 yet yet RB 40404 4530 20 begun begin VBN 40404 4530 21 . . . 40404 4531 1 The the DT 40404 4531 2 Paleozoic Paleozoic NNP 40404 4531 3 insects insect NNS 40404 4531 4 were be VBD 40404 4531 5 generalized generalize VBN 40404 4531 6 types type NNS 40404 4531 7 connecting connect VBG 40404 4531 8 the the DT 40404 4531 9 present present JJ 40404 4531 10 orders order NNS 40404 4531 11 . . . 40404 4532 1 Their -PRON- PRP$ 40404 4532 2 fore fore JJ 40404 4532 3 wings wing NNS 40404 4532 4 were be VBD 40404 4532 5 still still RB 40404 4532 6 membranous membranous JJ 40404 4532 7 and and CC 40404 4532 8 delicately delicately RB 40404 4532 9 veined vein VBN 40404 4532 10 , , , 40404 4532 11 and and CC 40404 4532 12 used use VBN 40404 4532 13 in in IN 40404 4532 14 flying flying NN 40404 4532 15 ; ; : 40404 4532 16 they -PRON- PRP 40404 4532 17 had have VBD 40404 4532 18 not not RB 40404 4532 19 yet yet RB 40404 4532 20 become become VBN 40404 4532 21 thick thick JJ 40404 4532 22 , , , 40404 4532 23 and and CC 40404 4532 24 useful useful JJ 40404 4532 25 only only RB 40404 4532 26 as as IN 40404 4532 27 wing wing NN 40404 4532 28 covers cover NNS 40404 4532 29 , , , 40404 4532 30 as as IN 40404 4532 31 in in IN 40404 4532 32 many many JJ 40404 4532 33 of of IN 40404 4532 34 their -PRON- PRP$ 40404 4532 35 descendants descendant NNS 40404 4532 36 . . . 40404 4533 1 [ [ -LRB- 40404 4533 2 Illustration illustration NN 40404 4533 3 : : : 40404 4533 4 Fig Fig NNP 40404 4533 5 . . . 40404 4534 1 309 309 CD 40404 4534 2 . . . 40404 4535 1 Carboniferous Carboniferous NNP 40404 4535 2 Brachiopods Brachiopods NNPS 40404 4535 3 _ _ NNP 40404 4535 4 A A NNP 40404 4535 5 _ _ NNP 40404 4535 6 , , , 40404 4535 7 Productus Productus NNP 40404 4535 8 ; ; : 40404 4535 9 _ _ NNP 40404 4535 10 B B NNP 40404 4535 11 _ _ NNP 40404 4535 12 , , , 40404 4535 13 Spirifer Spirifer NNP 40404 4535 14 , , , 40404 4535 15 the the DT 40404 4535 16 right right JJ 40404 4535 17 - - HYPH 40404 4535 18 hand hand NN 40404 4535 19 figure figure NN 40404 4535 20 showing show VBG 40404 4535 21 the the DT 40404 4535 22 interior interior NN 40404 4535 23 with with IN 40404 4535 24 the the DT 40404 4535 25 calcareous calcareous JJ 40404 4535 26 spires spire NNS 40404 4535 27 for for IN 40404 4535 28 the the DT 40404 4535 29 support support NN 40404 4535 30 of of IN 40404 4535 31 the the DT 40404 4535 32 arms arm NNS 40404 4535 33 ] ] -RRB- 40404 4535 34 = = SYM 40404 4535 35 Fishes= fishes= CD 40404 4535 36 still still RB 40404 4535 37 held hold VBN 40404 4535 38 to to IN 40404 4535 39 the the DT 40404 4535 40 Devonian devonian JJ 40404 4535 41 types type NNS 40404 4535 42 , , , 40404 4535 43 with with IN 40404 4535 44 the the DT 40404 4535 45 exception exception NN 40404 4535 46 that that WDT 40404 4535 47 the the DT 40404 4535 48 strange strange JJ 40404 4535 49 ostracoderms ostracoderm NNS 40404 4535 50 now now RB 40404 4535 51 had have VBD 40404 4535 52 perished perish VBN 40404 4535 53 . . . 40404 4536 1 = = NFP 40404 4536 2 Amphibians.= amphibians.= VB 40404 4536 3 The the DT 40404 4536 4 vertebrates vertebrate NNS 40404 4536 5 had have VBD 40404 4536 6 now now RB 40404 4536 7 followed follow VBN 40404 4536 8 the the DT 40404 4536 9 arthropods arthropod NNS 40404 4536 10 and and CC 40404 4536 11 the the DT 40404 4536 12 mollusks mollusk NNS 40404 4536 13 upon upon IN 40404 4536 14 the the DT 40404 4536 15 land land NN 40404 4536 16 , , , 40404 4536 17 and and CC 40404 4536 18 developed develop VBD 40404 4536 19 a a DT 40404 4536 20 higher high JJR 40404 4536 21 type type NN 40404 4536 22 adapted adapt VBN 40404 4536 23 to to IN 40404 4536 24 the the DT 40404 4536 25 new new JJ 40404 4536 26 environment environment NN 40404 4536 27 . . . 40404 4537 1 Amphibians amphibian NNS 40404 4537 2 -- -- : 40404 4537 3 the the DT 40404 4537 4 class class NN 40404 4537 5 to to TO 40404 4537 6 which which WDT 40404 4537 7 frogs frog NNS 40404 4537 8 and and CC 40404 4537 9 salamanders salamander NNS 40404 4537 10 belong belong VBP 40404 4537 11 -- -- : 40404 4537 12 now now RB 40404 4537 13 appear appear VBP 40404 4537 14 , , , 40404 4537 15 with with IN 40404 4537 16 lungs lung NNS 40404 4537 17 for for IN 40404 4537 18 breathing breathe VBG 40404 4537 19 air air NN 40404 4537 20 and and CC 40404 4537 21 with with IN 40404 4537 22 limbs limb NNS 40404 4537 23 for for IN 40404 4537 24 locomotion locomotion NN 40404 4537 25 on on IN 40404 4537 26 the the DT 40404 4537 27 land land NN 40404 4537 28 . . . 40404 4538 1 Most Most JJS 40404 4538 2 of of IN 40404 4538 3 the the DT 40404 4538 4 Carboniferous carboniferous JJ 40404 4538 5 amphibians amphibian NNS 40404 4538 6 were be VBD 40404 4538 7 shaped shape VBN 40404 4538 8 like like IN 40404 4538 9 the the DT 40404 4538 10 salamander salamander JJ 40404 4538 11 , , , 40404 4538 12 with with IN 40404 4538 13 weak weak JJ 40404 4538 14 limbs limb NNS 40404 4538 15 adapted adapt VBD 40404 4538 16 more more RBR 40404 4538 17 for for IN 40404 4538 18 crawling crawl VBG 40404 4538 19 than than IN 40404 4538 20 for for IN 40404 4538 21 carrying carry VBG 40404 4538 22 the the DT 40404 4538 23 body body NN 40404 4538 24 well well RB 40404 4538 25 above above IN 40404 4538 26 the the DT 40404 4538 27 ground ground NN 40404 4538 28 . . . 40404 4539 1 some some DT 40404 4539 2 legless legless NN 40404 4539 3 , , , 40404 4539 4 degenerate degenerate VBP 40404 4539 5 forms form NNS 40404 4539 6 were be VBD 40404 4539 7 snakelike snakelike VBN 40404 4539 8 in in IN 40404 4539 9 shape shape NN 40404 4539 10 . . . 40404 4540 1 [ [ -LRB- 40404 4540 2 Illustration illustration NN 40404 4540 3 : : : 40404 4540 4 Fig Fig NNP 40404 4540 5 . . . 40404 4541 1 310 310 CD 40404 4541 2 . . . 40404 4542 1 A a DT 40404 4542 2 Carboniferous carboniferous JJ 40404 4542 3 Dragon dragon NN 40404 4542 4 Fly Fly NNP 40404 4542 5 One one CD 40404 4542 6 tenth tenth JJ 40404 4542 7 natural natural JJ 40404 4542 8 size size NN 40404 4542 9 ] ] -RRB- 40404 4542 10 The the DT 40404 4542 11 earliest early JJS 40404 4542 12 amphibians amphibian NNS 40404 4542 13 differ differ VBP 40404 4542 14 from from IN 40404 4542 15 those those DT 40404 4542 16 of of IN 40404 4542 17 to to IN 40404 4542 18 - - HYPH 40404 4542 19 day day NN 40404 4542 20 in in IN 40404 4542 21 a a DT 40404 4542 22 number number NN 40404 4542 23 of of IN 40404 4542 24 respects respect NNS 40404 4542 25 . . . 40404 4543 1 They -PRON- PRP 40404 4543 2 were be VBD 40404 4543 3 connecting connect VBG 40404 4543 4 types type NNS 40404 4543 5 linking link VBG 40404 4543 6 together together RB 40404 4543 7 fishes fish NNS 40404 4543 8 , , , 40404 4543 9 from from IN 40404 4543 10 which which WDT 40404 4543 11 they -PRON- PRP 40404 4543 12 were be VBD 40404 4543 13 descended descend VBN 40404 4543 14 , , , 40404 4543 15 with with IN 40404 4543 16 reptiles reptile NNS 40404 4543 17 , , , 40404 4543 18 of of IN 40404 4543 19 which which WDT 40404 4543 20 they -PRON- PRP 40404 4543 21 were be VBD 40404 4543 22 the the DT 40404 4543 23 ancestors ancestor NNS 40404 4543 24 . . . 40404 4544 1 They -PRON- PRP 40404 4544 2 retained retain VBD 40404 4544 3 the the DT 40404 4544 4 evidence evidence NN 40404 4544 5 of of IN 40404 4544 6 their -PRON- PRP$ 40404 4544 7 close close JJ 40404 4544 8 relationship relationship NN 40404 4544 9 with with IN 40404 4544 10 the the DT 40404 4544 11 Devonian Devonian NNP 40404 4544 12 fishes fish VBZ 40404 4544 13 in in IN 40404 4544 14 their -PRON- PRP$ 40404 4544 15 cold cold JJ 40404 4544 16 blood blood NN 40404 4544 17 , , , 40404 4544 18 their -PRON- PRP$ 40404 4544 19 gills gill NNS 40404 4544 20 and and CC 40404 4544 21 aquatic aquatic JJ 40404 4544 22 habit habit NN 40404 4544 23 during during IN 40404 4544 24 their -PRON- PRP$ 40404 4544 25 larval larval JJ 40404 4544 26 stage stage NN 40404 4544 27 , , , 40404 4544 28 their -PRON- PRP$ 40404 4544 29 teeth tooth NNS 40404 4544 30 with with IN 40404 4544 31 dentine dentine NNP 40404 4544 32 infolded infolde VBD 40404 4544 33 like like IN 40404 4544 34 those those DT 40404 4544 35 of of IN 40404 4544 36 the the DT 40404 4544 37 Devonian devonian JJ 40404 4544 38 ganoids ganoid NNS 40404 4544 39 but but CC 40404 4544 40 still still RB 40404 4544 41 more more RBR 40404 4544 42 intricately intricately RB 40404 4544 43 , , , 40404 4544 44 and and CC 40404 4544 45 their -PRON- PRP$ 40404 4544 46 biconcave biconcave JJ 40404 4544 47 vertebræ vertebræ NN 40404 4544 48 which which WDT 40404 4544 49 never never RB 40404 4544 50 completely completely RB 40404 4544 51 ossified ossify VBD 40404 4544 52 . . . 40404 4545 1 These these DT 40404 4545 2 , , , 40404 4545 3 the the DT 40404 4545 4 highest high JJS 40404 4545 5 vertebrates vertebrate NNS 40404 4545 6 of of IN 40404 4545 7 the the DT 40404 4545 8 time time NN 40404 4545 9 , , , 40404 4545 10 had have VBD 40404 4545 11 not not RB 40404 4545 12 yet yet RB 40404 4545 13 advanced advance VBN 40404 4545 14 beyond beyond IN 40404 4545 15 the the DT 40404 4545 16 embryonic embryonic JJ 40404 4545 17 stage stage NN 40404 4545 18 of of IN 40404 4545 19 the the DT 40404 4545 20 more more RBR 40404 4545 21 or or CC 40404 4545 22 less less RBR 40404 4545 23 cartilaginous cartilaginous JJ 40404 4545 24 skeleton skeleton NN 40404 4545 25 and and CC 40404 4545 26 the the DT 40404 4545 27 persistent persistent JJ 40404 4545 28 notochord notochord NN 40404 4545 29 . . . 40404 4546 1 [ [ -LRB- 40404 4546 2 Illustration illustration NN 40404 4546 3 : : : 40404 4546 4 Fig Fig NNP 40404 4546 5 . . . 40404 4547 1 311 311 CD 40404 4547 2 . . . 40404 4548 1 A a DT 40404 4548 2 Carboniferous Carboniferous NNP 40404 4548 3 Amphibian Amphibian NNP 40404 4548 4 ] ] -RRB- 40404 4548 5 [ [ -LRB- 40404 4548 6 Illustration illustration NN 40404 4548 7 : : : 40404 4548 8 Fig Fig NNP 40404 4548 9 . . . 40404 4549 1 312 312 CD 40404 4549 2 . . . 40404 4550 1 Transverse Transverse NNP 40404 4550 2 Section Section NNP 40404 4550 3 of of IN 40404 4550 4 Segment Segment NNP 40404 4550 5 of of IN 40404 4550 6 Tooth Tooth NNP 40404 4550 7 of of IN 40404 4550 8 Carboniferous Carboniferous NNP 40404 4550 9 Amphibian Amphibian NNP 40404 4550 10 ] ] -RRB- 40404 4550 11 On on IN 40404 4550 12 the the DT 40404 4550 13 other other JJ 40404 4550 14 hand hand NN 40404 4550 15 , , , 40404 4550 16 the the DT 40404 4550 17 skull skull NN 40404 4550 18 of of IN 40404 4550 19 the the DT 40404 4550 20 Carboniferous carboniferous JJ 40404 4550 21 amphibians amphibians NNPS 40404 4550 22 was be VBD 40404 4550 23 made make VBN 40404 4550 24 of of IN 40404 4550 25 close close RB 40404 4550 26 - - HYPH 40404 4550 27 set set NN 40404 4550 28 bony bony NN 40404 4550 29 plates plate NNS 40404 4550 30 , , , 40404 4550 31 like like IN 40404 4550 32 the the DT 40404 4550 33 skull skull NN 40404 4550 34 of of IN 40404 4550 35 the the DT 40404 4550 36 reptile reptile NN 40404 4550 37 , , , 40404 4550 38 rather rather RB 40404 4550 39 than than IN 40404 4550 40 like like IN 40404 4550 41 that that DT 40404 4550 42 of of IN 40404 4550 43 the the DT 40404 4550 44 frog frog NN 40404 4550 45 , , , 40404 4550 46 with with IN 40404 4550 47 its -PRON- PRP$ 40404 4550 48 open open JJ 40404 4550 49 spaces space NNS 40404 4550 50 ( ( -LRB- 40404 4550 51 Figs fig NNS 40404 4550 52 . . . 40404 4551 1 313 313 CD 40404 4551 2 and and CC 40404 4551 3 314 314 CD 40404 4551 4 ) ) -RRB- 40404 4551 5 . . . 40404 4552 1 Unlike unlike IN 40404 4552 2 modern modern JJ 40404 4552 3 amphibians amphibian NNS 40404 4552 4 , , , 40404 4552 5 with with IN 40404 4552 6 their -PRON- PRP$ 40404 4552 7 slimy slimy JJ 40404 4552 8 skin skin NN 40404 4552 9 , , , 40404 4552 10 the the DT 40404 4552 11 Carboniferous carboniferous JJ 40404 4552 12 amphibians amphibian NNS 40404 4552 13 wore wear VBD 40404 4552 14 an an DT 40404 4552 15 armor armor NN 40404 4552 16 of of IN 40404 4552 17 bony bony NN 40404 4552 18 scales scale VBZ 40404 4552 19 over over IN 40404 4552 20 the the DT 40404 4552 21 ventral ventral JJ 40404 4552 22 surface surface NN 40404 4552 23 and and CC 40404 4552 24 sometimes sometimes RB 40404 4552 25 over over IN 40404 4552 26 the the DT 40404 4552 27 back back NN 40404 4552 28 as as RB 40404 4552 29 well well RB 40404 4552 30 . . . 40404 4553 1 [ [ -LRB- 40404 4553 2 Illustration illustration NN 40404 4553 3 : : : 40404 4553 4 Fig Fig NNP 40404 4553 5 . . . 40404 4554 1 313 313 CD 40404 4554 2 . . . 40404 4555 1 Skull Skull NNP 40404 4555 2 of of IN 40404 4555 3 a a DT 40404 4555 4 Permian Permian NNP 40404 4555 5 Amphibian Amphibian NNP 40404 4555 6 from from IN 40404 4555 7 Texas Texas NNP 40404 4555 8 ] ] -RRB- 40404 4555 9 [ [ -LRB- 40404 4555 10 Illustration illustration NN 40404 4555 11 : : : 40404 4555 12 Fig Fig NNP 40404 4555 13 . . . 40404 4556 1 314 314 CD 40404 4556 2 . . . 40404 4557 1 Skull Skull NNP 40404 4557 2 of of IN 40404 4557 3 a a DT 40404 4557 4 Frog Frog NNP 40404 4557 5 ] ] -RRB- 40404 4557 6 It -PRON- PRP 40404 4557 7 is be VBZ 40404 4557 8 interesting interesting JJ 40404 4557 9 to to TO 40404 4557 10 notice notice VB 40404 4557 11 from from IN 40404 4557 12 the the DT 40404 4557 13 footprints footprint NNS 40404 4557 14 and and CC 40404 4557 15 skeletons skeleton NNS 40404 4557 16 of of IN 40404 4557 17 these these DT 40404 4557 18 earliest early RBS 40404 4557 19 - - HYPH 40404 4557 20 known know VBN 40404 4557 21 vertebrates vertebrate NNS 40404 4557 22 of of IN 40404 4557 23 the the DT 40404 4557 24 land land NN 40404 4557 25 what what WP 40404 4557 26 was be VBD 40404 4557 27 the the DT 40404 4557 28 primitive primitive JJ 40404 4557 29 number number NN 40404 4557 30 of of IN 40404 4557 31 digits digit NNS 40404 4557 32 . . . 40404 4558 1 The the DT 40404 4558 2 Carboniferous carboniferous JJ 40404 4558 3 amphibians amphibian NNS 40404 4558 4 had have VBD 40404 4558 5 five five CD 40404 4558 6 - - HYPH 40404 4558 7 toed toe VBN 40404 4558 8 feet foot NNS 40404 4558 9 , , , 40404 4558 10 the the DT 40404 4558 11 primitive primitive JJ 40404 4558 12 type type NN 40404 4558 13 of of IN 40404 4558 14 foot foot NN 40404 4558 15 , , , 40404 4558 16 from from IN 40404 4558 17 which which WDT 40404 4558 18 their -PRON- PRP$ 40404 4558 19 descendants descendant NNS 40404 4558 20 of of IN 40404 4558 21 higher high JJR 40404 4558 22 orders order NNS 40404 4558 23 , , , 40404 4558 24 with with IN 40404 4558 25 a a DT 40404 4558 26 smaller small JJR 40404 4558 27 number number NN 40404 4558 28 of of IN 40404 4558 29 digits digit NNS 40404 4558 30 , , , 40404 4558 31 have have VBP 40404 4558 32 diverged diverge VBN 40404 4558 33 . . . 40404 4559 1 The the DT 40404 4559 2 Carboniferous Carboniferous NNP 40404 4559 3 was be VBD 40404 4559 4 the the DT 40404 4559 5 age age NN 40404 4559 6 of of IN 40404 4559 7 lycopods lycopod NNS 40404 4559 8 and and CC 40404 4559 9 amphibians amphibian NNS 40404 4559 10 , , , 40404 4559 11 as as IN 40404 4559 12 the the DT 40404 4559 13 Devonian Devonian NNP 40404 4559 14 had have VBD 40404 4559 15 been be VBN 40404 4559 16 the the DT 40404 4559 17 age age NN 40404 4559 18 of of IN 40404 4559 19 rhizocarps rhizocarp NNS 40404 4559 20 and and CC 40404 4559 21 fishes fish NNS 40404 4559 22 . . . 40404 4560 1 = = NFP 40404 4560 2 Life life NN 40404 4560 3 of of IN 40404 4560 4 the the DT 40404 4560 5 Permian.= Permian.= NNP 40404 4560 6 The the DT 40404 4560 7 close close NN 40404 4560 8 of of IN 40404 4560 9 the the DT 40404 4560 10 Paleozoic Paleozoic NNP 40404 4560 11 was be VBD 40404 4560 12 , , , 40404 4560 13 as as IN 40404 4560 14 we -PRON- PRP 40404 4560 15 have have VBP 40404 4560 16 seen see VBN 40404 4560 17 , , , 40404 4560 18 a a DT 40404 4560 19 time time NN 40404 4560 20 of of IN 40404 4560 21 marked mark VBN 40404 4560 22 physical physical JJ 40404 4560 23 changes change NNS 40404 4560 24 . . . 40404 4561 1 The the DT 40404 4561 2 upridging upridging NN 40404 4561 3 of of IN 40404 4561 4 the the DT 40404 4561 5 Appalachians Appalachians NNPS 40404 4561 6 had have VBD 40404 4561 7 begun begin VBN 40404 4561 8 and and CC 40404 4561 9 a a DT 40404 4561 10 wide wide JJ 40404 4561 11 continental continental JJ 40404 4561 12 uplift uplift NN 40404 4561 13 -- -- : 40404 4561 14 proved prove VBN 40404 4561 15 by by IN 40404 4561 16 the the DT 40404 4561 17 absence absence NN 40404 4561 18 of of IN 40404 4561 19 Permian permian JJ 40404 4561 20 deposits deposit NNS 40404 4561 21 over over IN 40404 4561 22 large large JJ 40404 4561 23 areas area NNS 40404 4561 24 where where WRB 40404 4561 25 sedimentation sedimentation NN 40404 4561 26 had have VBD 40404 4561 27 gone go VBN 40404 4561 28 on on RP 40404 4561 29 before before RB 40404 4561 30 -- -- : 40404 4561 31 opened open VBD 40404 4561 32 new new JJ 40404 4561 33 lands land NNS 40404 4561 34 for for IN 40404 4561 35 settlement settlement NN 40404 4561 36 to to IN 40404 4561 37 hordes horde NNS 40404 4561 38 of of IN 40404 4561 39 air air NN 40404 4561 40 - - HYPH 40404 4561 41 breathing breathing NN 40404 4561 42 animals animal NNS 40404 4561 43 . . . 40404 4562 1 Changes change NNS 40404 4562 2 of of IN 40404 4562 3 climate climate NN 40404 4562 4 compelled compel VBN 40404 4562 5 extensive extensive JJ 40404 4562 6 migrations migration NNS 40404 4562 7 , , , 40404 4562 8 and and CC 40404 4562 9 the the DT 40404 4562 10 fauna fauna NNS 40404 4562 11 of of IN 40404 4562 12 different different JJ 40404 4562 13 regions region NNS 40404 4562 14 were be VBD 40404 4562 15 thus thus RB 40404 4562 16 brought bring VBN 40404 4562 17 into into IN 40404 4562 18 conflict conflict NN 40404 4562 19 . . . 40404 4563 1 The the DT 40404 4563 2 Permian Permian NNP 40404 4563 3 was be VBD 40404 4563 4 a a DT 40404 4563 5 time time NN 40404 4563 6 of of IN 40404 4563 7 pronounced pronounce VBN 40404 4563 8 changes change NNS 40404 4563 9 in in IN 40404 4563 10 plant plant NN 40404 4563 11 and and CC 40404 4563 12 animal animal NN 40404 4563 13 life life NN 40404 4563 14 , , , 40404 4563 15 and and CC 40404 4563 16 a a DT 40404 4563 17 transitional transitional JJ 40404 4563 18 period period NN 40404 4563 19 between between IN 40404 4563 20 two two CD 40404 4563 21 great great JJ 40404 4563 22 eras era NNS 40404 4563 23 . . . 40404 4564 1 The the DT 40404 4564 2 somber somber JJ 40404 4564 3 forests forest NNS 40404 4564 4 of of IN 40404 4564 5 the the DT 40404 4564 6 earlier early RBR 40404 4564 7 Carboniferous carboniferous JJ 40404 4564 8 , , , 40404 4564 9 with with IN 40404 4564 10 their -PRON- PRP$ 40404 4564 11 gigantic gigantic JJ 40404 4564 12 club club NN 40404 4564 13 mosses moss NNS 40404 4564 14 , , , 40404 4564 15 were be VBD 40404 4564 16 now now RB 40404 4564 17 replaced replace VBN 40404 4564 18 by by IN 40404 4564 19 forests forest NNS 40404 4564 20 of of IN 40404 4564 21 cycads cycad NNS 40404 4564 22 , , , 40404 4564 23 tree tree NN 40404 4564 24 ferns fern VBZ 40404 4564 25 , , , 40404 4564 26 and and CC 40404 4564 27 conifers conifer NNS 40404 4564 28 . . . 40404 4565 1 Even even RB 40404 4565 2 in in IN 40404 4565 3 the the DT 40404 4565 4 lower low JJR 40404 4565 5 Permian permian JJ 40404 4565 6 the the DT 40404 4565 7 Lepidodendron Lepidodendron NNP 40404 4565 8 and and CC 40404 4565 9 Sigillaria Sigillaria NNP 40404 4565 10 were be VBD 40404 4565 11 very very RB 40404 4565 12 rare rare JJ 40404 4565 13 , , , 40404 4565 14 and and CC 40404 4565 15 before before IN 40404 4565 16 the the DT 40404 4565 17 end end NN 40404 4565 18 of of IN 40404 4565 19 the the DT 40404 4565 20 epoch epoch NN 40404 4565 21 they -PRON- PRP 40404 4565 22 and and CC 40404 4565 23 the the DT 40404 4565 24 Calamites Calamites NNPS 40404 4565 25 also also RB 40404 4565 26 had have VBD 40404 4565 27 become become VBN 40404 4565 28 extinct extinct JJ 40404 4565 29 . . . 40404 4566 1 Gradually gradually RB 40404 4566 2 the the DT 40404 4566 3 antique antique JJ 40404 4566 4 types type NNS 40404 4566 5 of of IN 40404 4566 6 the the DT 40404 4566 7 Paleozoic Paleozoic NNP 40404 4566 8 fauna fauna NNS 40404 4566 9 died die VBD 40404 4566 10 out out RP 40404 4566 11 , , , 40404 4566 12 and and CC 40404 4566 13 in in IN 40404 4566 14 the the DT 40404 4566 15 Permian permian JJ 40404 4566 16 rocks rock NNS 40404 4566 17 are be VBP 40404 4566 18 found find VBN 40404 4566 19 the the DT 40404 4566 20 last last JJ 40404 4566 21 survivors survivor NNS 40404 4566 22 of of IN 40404 4566 23 the the DT 40404 4566 24 cystoid cystoid NN 40404 4566 25 , , , 40404 4566 26 the the DT 40404 4566 27 trilobite trilobite NN 40404 4566 28 , , , 40404 4566 29 and and CC 40404 4566 30 the the DT 40404 4566 31 eurypterid eurypterid NN 40404 4566 32 , , , 40404 4566 33 and and CC 40404 4566 34 of of IN 40404 4566 35 many many JJ 40404 4566 36 long long RB 40404 4566 37 - - HYPH 40404 4566 38 lived live VBN 40404 4566 39 families family NNS 40404 4566 40 of of IN 40404 4566 41 brachiopods brachiopod NNS 40404 4566 42 , , , 40404 4566 43 mollusks mollusk NNS 40404 4566 44 , , , 40404 4566 45 and and CC 40404 4566 46 other other JJ 40404 4566 47 invertebrates invertebrate NNS 40404 4566 48 . . . 40404 4567 1 The the DT 40404 4567 2 venerable venerable JJ 40404 4567 3 Orthoceras Orthoceras NNP 40404 4567 4 and and CC 40404 4567 5 the the DT 40404 4567 6 Goniatite Goniatite NNP 40404 4567 7 linger linger RBR 40404 4567 8 on on RP 40404 4567 9 through through IN 40404 4567 10 the the DT 40404 4567 11 epoch epoch NN 40404 4567 12 and and CC 40404 4567 13 into into IN 40404 4567 14 the the DT 40404 4567 15 first first JJ 40404 4567 16 period period NN 40404 4567 17 of of IN 40404 4567 18 the the DT 40404 4567 19 succeeding succeed VBG 40404 4567 20 era era NN 40404 4567 21 . . . 40404 4568 1 Forerunners forerunner NNS 40404 4568 2 of of IN 40404 4568 3 the the DT 40404 4568 4 great great JJ 40404 4568 5 ammonite ammonite JJ 40404 4568 6 family family NN 40404 4568 7 of of IN 40404 4568 8 cephalopod cephalopod NNP 40404 4568 9 mollusks mollusk VBZ 40404 4568 10 now now RB 40404 4568 11 appear appear VBP 40404 4568 12 . . . 40404 4569 1 The the DT 40404 4569 2 antique antique JJ 40404 4569 3 forms form NNS 40404 4569 4 of of IN 40404 4569 5 the the DT 40404 4569 6 earlier early JJR 40404 4569 7 Carboniferous carboniferous JJ 40404 4569 8 amphibians amphibian NNS 40404 4569 9 continue continue VBP 40404 4569 10 , , , 40404 4569 11 but but CC 40404 4569 12 with with IN 40404 4569 13 many many JJ 40404 4569 14 new new JJ 40404 4569 15 genera genera NN 40404 4569 16 and and CC 40404 4569 17 a a DT 40404 4569 18 marked marked JJ 40404 4569 19 increase increase NN 40404 4569 20 in in IN 40404 4569 21 size size NN 40404 4569 22 . . . 40404 4570 1 A a DT 40404 4570 2 long long JJ 40404 4570 3 forward forward JJ 40404 4570 4 step step NN 40404 4570 5 had have VBD 40404 4570 6 now now RB 40404 4570 7 been be VBN 40404 4570 8 taken take VBN 40404 4570 9 in in IN 40404 4570 10 the the DT 40404 4570 11 evolution evolution NN 40404 4570 12 of of IN 40404 4570 13 the the DT 40404 4570 14 vertebrates vertebrate NNS 40404 4570 15 . . . 40404 4571 1 A a DT 40404 4571 2 new new JJ 40404 4571 3 and and CC 40404 4571 4 higher high JJR 40404 4571 5 type type NN 40404 4571 6 , , , 40404 4571 7 the the DT 40404 4571 8 reptiles reptile NNS 40404 4571 9 , , , 40404 4571 10 had have VBD 40404 4571 11 appeared appear VBN 40404 4571 12 , , , 40404 4571 13 and and CC 40404 4571 14 in in IN 40404 4571 15 such such JJ 40404 4571 16 numbers number NNS 40404 4571 17 and and CC 40404 4571 18 variety variety NN 40404 4571 19 are be VBP 40404 4571 20 they -PRON- PRP 40404 4571 21 found find VBN 40404 4571 22 in in IN 40404 4571 23 the the DT 40404 4571 24 Permian permian JJ 40404 4571 25 strata strata NN 40404 4571 26 that that IN 40404 4571 27 their -PRON- PRP$ 40404 4571 28 advent advent NN 40404 4571 29 may may MD 40404 4571 30 well well RB 40404 4571 31 have have VB 40404 4571 32 occurred occur VBN 40404 4571 33 in in IN 40404 4571 34 a a DT 40404 4571 35 still still RB 40404 4571 36 earlier early JJR 40404 4571 37 epoch epoch NN 40404 4571 38 . . . 40404 4572 1 It -PRON- PRP 40404 4572 2 will will MD 40404 4572 3 be be VB 40404 4572 4 most most RBS 40404 4572 5 convenient convenient JJ 40404 4572 6 to to TO 40404 4572 7 describe describe VB 40404 4572 8 the the DT 40404 4572 9 Permian permian JJ 40404 4572 10 reptiles reptile NNS 40404 4572 11 along along IN 40404 4572 12 with with IN 40404 4572 13 their -PRON- PRP$ 40404 4572 14 descendants descendant NNS 40404 4572 15 of of IN 40404 4572 16 the the DT 40404 4572 17 Mesozoic Mesozoic NNP 40404 4572 18 . . . 40404 4573 1 CHAPTER chapter NN 40404 4573 2 XX XX NNP 40404 4573 3 THE the DT 40404 4573 4 MESOZOIC MESOZOIC NNP 40404 4573 5 With with IN 40404 4573 6 the the DT 40404 4573 7 close close NN 40404 4573 8 of of IN 40404 4573 9 the the DT 40404 4573 10 Permian permian JJ 40404 4573 11 the the DT 40404 4573 12 world world NN 40404 4573 13 of of IN 40404 4573 14 animal animal NN 40404 4573 15 and and CC 40404 4573 16 vegetable vegetable NN 40404 4573 17 life life NN 40404 4573 18 had have VBD 40404 4573 19 so so RB 40404 4573 20 changed change VBN 40404 4573 21 that that IN 40404 4573 22 the the DT 40404 4573 23 line line NN 40404 4573 24 is be VBZ 40404 4573 25 drawn draw VBN 40404 4573 26 here here RB 40404 4573 27 which which WDT 40404 4573 28 marks mark VBZ 40404 4573 29 the the DT 40404 4573 30 end end NN 40404 4573 31 of of IN 40404 4573 32 the the DT 40404 4573 33 old old JJ 40404 4573 34 order order NN 40404 4573 35 and and CC 40404 4573 36 the the DT 40404 4573 37 beginning beginning NN 40404 4573 38 of of IN 40404 4573 39 the the DT 40404 4573 40 new new JJ 40404 4573 41 and and CC 40404 4573 42 separates separate VBZ 40404 4573 43 the the DT 40404 4573 44 Paleozoic Paleozoic NNP 40404 4573 45 from from IN 40404 4573 46 the the DT 40404 4573 47 succeeding succeed VBG 40404 4573 48 era,--the era,--the NNP 40404 4573 49 Mesozoic Mesozoic NNP 40404 4573 50 , , , 40404 4573 51 the the DT 40404 4573 52 Middle Middle NNP 40404 4573 53 Age Age NNP 40404 4573 54 of of IN 40404 4573 55 geological geological JJ 40404 4573 56 history history NN 40404 4573 57 . . . 40404 4574 1 Although although IN 40404 4574 2 the the DT 40404 4574 3 Mesozoic Mesozoic NNP 40404 4574 4 era era NN 40404 4574 5 is be VBZ 40404 4574 6 shorter short JJR 40404 4574 7 than than IN 40404 4574 8 the the DT 40404 4574 9 Paleozoic Paleozoic NNP 40404 4574 10 , , , 40404 4574 11 as as IN 40404 4574 12 measured measure VBN 40404 4574 13 by by IN 40404 4574 14 the the DT 40404 4574 15 thickness thickness NN 40404 4574 16 of of IN 40404 4574 17 their -PRON- PRP$ 40404 4574 18 strata strata NN 40404 4574 19 , , , 40404 4574 20 yet yet CC 40404 4574 21 its -PRON- PRP$ 40404 4574 22 duration duration NN 40404 4574 23 must must MD 40404 4574 24 be be VB 40404 4574 25 reckoned reckon VBN 40404 4574 26 in in IN 40404 4574 27 millions million NNS 40404 4574 28 of of IN 40404 4574 29 years year NNS 40404 4574 30 . . . 40404 4575 1 Its -PRON- PRP$ 40404 4575 2 predominant predominant JJ 40404 4575 3 life life NN 40404 4575 4 features feature NNS 40404 4575 5 are be VBP 40404 4575 6 the the DT 40404 4575 7 culmination culmination NN 40404 4575 8 and and CC 40404 4575 9 the the DT 40404 4575 10 beginning beginning NN 40404 4575 11 of of IN 40404 4575 12 the the DT 40404 4575 13 decline decline NN 40404 4575 14 of of IN 40404 4575 15 reptiles reptile NNS 40404 4575 16 , , , 40404 4575 17 amphibians amphibian NNS 40404 4575 18 , , , 40404 4575 19 cephalopod cephalopod NNP 40404 4575 20 mollusks mollusk NNS 40404 4575 21 , , , 40404 4575 22 and and CC 40404 4575 23 cycads cycad NNS 40404 4575 24 , , , 40404 4575 25 and and CC 40404 4575 26 the the DT 40404 4575 27 advent advent NN 40404 4575 28 of of IN 40404 4575 29 marsupial marsupial JJ 40404 4575 30 mammals mammal NNS 40404 4575 31 , , , 40404 4575 32 birds bird NNS 40404 4575 33 , , , 40404 4575 34 teleost teleost NN 40404 4575 35 fishes fish VBZ 40404 4575 36 , , , 40404 4575 37 and and CC 40404 4575 38 angiospermous angiospermous JJ 40404 4575 39 plants plant NNS 40404 4575 40 . . . 40404 4576 1 The the DT 40404 4576 2 leading lead VBG 40404 4576 3 events event NNS 40404 4576 4 of of IN 40404 4576 5 the the DT 40404 4576 6 long long JJ 40404 4576 7 ages age NNS 40404 4576 8 of of IN 40404 4576 9 the the DT 40404 4576 10 era era NN 40404 4576 11 we -PRON- PRP 40404 4576 12 can can MD 40404 4576 13 sketch sketch VB 40404 4576 14 only only RB 40404 4576 15 in in IN 40404 4576 16 the the DT 40404 4576 17 most most RBS 40404 4576 18 summary summary NN 40404 4576 19 way way NN 40404 4576 20 . . . 40404 4577 1 The the DT 40404 4577 2 Mesozoic Mesozoic NNP 40404 4577 3 comprises comprise VBZ 40404 4577 4 three three CD 40404 4577 5 systems,--the systems,--the DT 40404 4577 6 _ _ NNP 40404 4577 7 Triassic Triassic NNP 40404 4577 8 _ _ NNP 40404 4577 9 , , , 40404 4577 10 named name VBN 40404 4577 11 from from IN 40404 4577 12 its -PRON- PRP$ 40404 4577 13 threefold threefold JJ 40404 4577 14 division division NN 40404 4577 15 in in IN 40404 4577 16 Germany Germany NNP 40404 4577 17 ; ; : 40404 4577 18 the the DT 40404 4577 19 _ _ NNP 40404 4577 20 Jurassic Jurassic NNP 40404 4577 21 _ _ NNP 40404 4577 22 , , , 40404 4577 23 which which WDT 40404 4577 24 is be VBZ 40404 4577 25 well well RB 40404 4577 26 displayed display VBN 40404 4577 27 in in IN 40404 4577 28 the the DT 40404 4577 29 Jura Jura NNP 40404 4577 30 Mountains Mountains NNPS 40404 4577 31 ; ; : 40404 4577 32 and and CC 40404 4577 33 the the DT 40404 4577 34 _ _ NNP 40404 4577 35 Cretaceous Cretaceous NNP 40404 4577 36 _ _ NNP 40404 4577 37 , , , 40404 4577 38 which which WDT 40404 4577 39 contains contain VBZ 40404 4577 40 the the DT 40404 4577 41 extensive extensive JJ 40404 4577 42 chalk chalk NN 40404 4577 43 ( ( -LRB- 40404 4577 44 Latin Latin NNP 40404 4577 45 , , , 40404 4577 46 _ _ NNP 40404 4577 47 creta creta NN 40404 4577 48 _ _ NNP 40404 4577 49 ) ) -RRB- 40404 4577 50 deposits deposit NNS 40404 4577 51 of of IN 40404 4577 52 Europe Europe NNP 40404 4577 53 . . . 40404 4578 1 In in IN 40404 4578 2 eastern eastern JJ 40404 4578 3 North North NNP 40404 4578 4 America America NNP 40404 4578 5 the the DT 40404 4578 6 Mesozoic Mesozoic NNP 40404 4578 7 rocks rock NNS 40404 4578 8 are be VBP 40404 4578 9 much much RB 40404 4578 10 less less RBR 40404 4578 11 important important JJ 40404 4578 12 than than IN 40404 4578 13 the the DT 40404 4578 14 Paleozoic Paleozoic NNP 40404 4578 15 , , , 40404 4578 16 for for IN 40404 4578 17 much much JJ 40404 4578 18 of of IN 40404 4578 19 this this DT 40404 4578 20 portion portion NN 40404 4578 21 of of IN 40404 4578 22 the the DT 40404 4578 23 continent continent NN 40404 4578 24 was be VBD 40404 4578 25 land land NN 40404 4578 26 during during IN 40404 4578 27 the the DT 40404 4578 28 Mesozoic Mesozoic NNP 40404 4578 29 era era NN 40404 4578 30 , , , 40404 4578 31 and and CC 40404 4578 32 the the DT 40404 4578 33 area area NN 40404 4578 34 of of IN 40404 4578 35 the the DT 40404 4578 36 Mesozoic Mesozoic NNP 40404 4578 37 rocks rock NNS 40404 4578 38 is be VBZ 40404 4578 39 small small JJ 40404 4578 40 . . . 40404 4579 1 In in IN 40404 4579 2 western western JJ 40404 4579 3 North North NNP 40404 4579 4 America America NNP 40404 4579 5 , , , 40404 4579 6 on on IN 40404 4579 7 the the DT 40404 4579 8 other other JJ 40404 4579 9 hand hand NN 40404 4579 10 , , , 40404 4579 11 the the DT 40404 4579 12 strata strata NN 40404 4579 13 of of IN 40404 4579 14 the the DT 40404 4579 15 Mesozoic Mesozoic NNP 40404 4579 16 -- -- : 40404 4579 17 and and CC 40404 4579 18 of of IN 40404 4579 19 the the DT 40404 4579 20 Cenozoic Cenozoic NNP 40404 4579 21 also also RB 40404 4579 22 -- -- : 40404 4579 23 are be VBP 40404 4579 24 widely widely RB 40404 4579 25 spread spread VBN 40404 4579 26 . . . 40404 4580 1 The the DT 40404 4580 2 Paleozoic Paleozoic NNP 40404 4580 3 rocks rock NNS 40404 4580 4 are be VBP 40404 4580 5 buried bury VBN 40404 4580 6 quite quite RB 40404 4580 7 generally generally RB 40404 4580 8 from from IN 40404 4580 9 view view NN 40404 4580 10 except except IN 40404 4580 11 where where WRB 40404 4580 12 the the DT 40404 4580 13 mountain mountain NN 40404 4580 14 makings making NNS 40404 4580 15 and and CC 40404 4580 16 continental continental JJ 40404 4580 17 uplifts uplift NNS 40404 4580 18 of of IN 40404 4580 19 the the DT 40404 4580 20 Mesozoic Mesozoic NNP 40404 4580 21 and and CC 40404 4580 22 Cenozoic Cenozoic NNP 40404 4580 23 have have VBP 40404 4580 24 allowed allow VBN 40404 4580 25 profound profound JJ 40404 4580 26 erosion erosion NN 40404 4580 27 to to TO 40404 4580 28 bring bring VB 40404 4580 29 them -PRON- PRP 40404 4580 30 to to IN 40404 4580 31 light light VB 40404 4580 32 , , , 40404 4580 33 as as IN 40404 4580 34 in in IN 40404 4580 35 deep deep JJ 40404 4580 36 canyons canyon NNS 40404 4580 37 and and CC 40404 4580 38 about about IN 40404 4580 39 mountain mountain NN 40404 4580 40 axes axis NNS 40404 4580 41 . . . 40404 4581 1 The the DT 40404 4581 2 record record NN 40404 4581 3 of of IN 40404 4581 4 many many JJ 40404 4581 5 of of IN 40404 4581 6 the the DT 40404 4581 7 most most RBS 40404 4581 8 important important JJ 40404 4581 9 events event NNS 40404 4581 10 in in IN 40404 4581 11 the the DT 40404 4581 12 development development NN 40404 4581 13 of of IN 40404 4581 14 the the DT 40404 4581 15 continent continent NN 40404 4581 16 during during IN 40404 4581 17 the the DT 40404 4581 18 Mesozoic Mesozoic NNP 40404 4581 19 and and CC 40404 4581 20 Cenozoic Cenozoic NNP 40404 4581 21 eras era NNS 40404 4581 22 is be VBZ 40404 4581 23 found find VBN 40404 4581 24 in in IN 40404 4581 25 the the DT 40404 4581 26 rocks rock NNS 40404 4581 27 of of IN 40404 4581 28 our -PRON- PRP$ 40404 4581 29 western western JJ 40404 4581 30 states state NNS 40404 4581 31 . . . 40404 4582 1 The the DT 40404 4582 2 Triassic Triassic NNP 40404 4582 3 and and CC 40404 4582 4 Jurassic Jurassic NNP 40404 4582 5 = = SYM 40404 4582 6 Eastern Eastern NNP 40404 4582 7 North North NNP 40404 4582 8 America.= America.= NNP 40404 4582 9 The the DT 40404 4582 10 sedimentary sedimentary JJ 40404 4582 11 record record NN 40404 4582 12 interrupted interrupt VBN 40404 4582 13 by by IN 40404 4582 14 the the DT 40404 4582 15 Appalachian appalachian JJ 40404 4582 16 deformation deformation NN 40404 4582 17 was be VBD 40404 4582 18 not not RB 40404 4582 19 renewed renew VBN 40404 4582 20 in in IN 40404 4582 21 eastern eastern JJ 40404 4582 22 North North NNP 40404 4582 23 America America NNP 40404 4582 24 until until IN 40404 4582 25 late late RB 40404 4582 26 in in IN 40404 4582 27 the the DT 40404 4582 28 Triassic Triassic NNP 40404 4582 29 . . . 40404 4583 1 Hence hence RB 40404 4583 2 during during IN 40404 4583 3 this this DT 40404 4583 4 long long JJ 40404 4583 5 interval interval NN 40404 4583 6 the the DT 40404 4583 7 land land NN 40404 4583 8 stood stand VBD 40404 4583 9 high high JJ 40404 4583 10 , , , 40404 4583 11 the the DT 40404 4583 12 coast coast NN 40404 4583 13 was be VBD 40404 4583 14 farther farther RB 40404 4583 15 out out RB 40404 4583 16 than than IN 40404 4583 17 now now RB 40404 4583 18 , , , 40404 4583 19 and and CC 40404 4583 20 over over IN 40404 4583 21 our -PRON- PRP$ 40404 4583 22 Atlantic Atlantic NNP 40404 4583 23 states state NNS 40404 4583 24 geological geological JJ 40404 4583 25 time time NN 40404 4583 26 was be VBD 40404 4583 27 recorded record VBN 40404 4583 28 chiefly chiefly RB 40404 4583 29 in in IN 40404 4583 30 erosion erosion NN 40404 4583 31 forms form NNS 40404 4583 32 of of IN 40404 4583 33 hill hill NN 40404 4583 34 and and CC 40404 4583 35 plain plain JJ 40404 4583 36 which which WDT 40404 4583 37 have have VBP 40404 4583 38 long long RB 40404 4583 39 since since IN 40404 4583 40 vanished vanish VBN 40404 4583 41 . . . 40404 4584 1 The the DT 40404 4584 2 area area NN 40404 4584 3 of of IN 40404 4584 4 the the DT 40404 4584 5 later later JJ 40404 4584 6 Triassic Triassic NNP 40404 4584 7 rocks rock NNS 40404 4584 8 of of IN 40404 4584 9 this this DT 40404 4584 10 region region NN 40404 4584 11 , , , 40404 4584 12 which which WDT 40404 4584 13 take take VBP 40404 4584 14 up up RP 40404 4584 15 again again RB 40404 4584 16 the the DT 40404 4584 17 geological geological JJ 40404 4584 18 record record NN 40404 4584 19 , , , 40404 4584 20 is be VBZ 40404 4584 21 seen see VBN 40404 4584 22 in in IN 40404 4584 23 the the DT 40404 4584 24 map map NN 40404 4584 25 of of IN 40404 4584 26 Figure Figure NNP 40404 4584 27 260 260 CD 40404 4584 28 . . . 40404 4585 1 They -PRON- PRP 40404 4585 2 lie lie VBP 40404 4585 3 on on IN 40404 4585 4 the the DT 40404 4585 5 upturned upturned JJ 40404 4585 6 and and CC 40404 4585 7 eroded erode VBN 40404 4585 8 edges edge NNS 40404 4585 9 of of IN 40404 4585 10 the the DT 40404 4585 11 older old JJR 40404 4585 12 rocks rock NNS 40404 4585 13 and and CC 40404 4585 14 occupy occupy VB 40404 4585 15 long long JJ 40404 4585 16 troughs trough NNS 40404 4585 17 running run VBG 40404 4585 18 for for IN 40404 4585 19 the the DT 40404 4585 20 most most JJS 40404 4585 21 part part NN 40404 4585 22 parallel parallel NN 40404 4585 23 to to IN 40404 4585 24 the the DT 40404 4585 25 Atlantic Atlantic NNP 40404 4585 26 coast coast NN 40404 4585 27 . . . 40404 4586 1 Evidently evidently RB 40404 4586 2 subsidence subsidence NN 40404 4586 3 was be VBD 40404 4586 4 in in IN 40404 4586 5 progress progress NN 40404 4586 6 where where WRB 40404 4586 7 these these DT 40404 4586 8 rocks rock NNS 40404 4586 9 were be VBD 40404 4586 10 deposited deposit VBN 40404 4586 11 . . . 40404 4587 1 The the DT 40404 4587 2 eastern eastern JJ 40404 4587 3 border border NN 40404 4587 4 of of IN 40404 4587 5 Appalachia Appalachia NNP 40404 4587 6 was be VBD 40404 4587 7 now now RB 40404 4587 8 depressed depressed JJ 40404 4587 9 . . . 40404 4588 1 The the DT 40404 4588 2 oldland oldland NN 40404 4588 3 was be VBD 40404 4588 4 warping warp VBG 40404 4588 5 , , , 40404 4588 6 and and CC 40404 4588 7 long long JJ 40404 4588 8 belts belt NNS 40404 4588 9 of of IN 40404 4588 10 country country NN 40404 4588 11 lying lie VBG 40404 4588 12 parallel parallel JJ 40404 4588 13 to to IN 40404 4588 14 the the DT 40404 4588 15 shore shore NN 40404 4588 16 subsided subside VBN 40404 4588 17 , , , 40404 4588 18 forming form VBG 40404 4588 19 troughs trough NNS 40404 4588 20 in in IN 40404 4588 21 which which WDT 40404 4588 22 thousands thousand NNS 40404 4588 23 of of IN 40404 4588 24 feet foot NNS 40404 4588 25 of of IN 40404 4588 26 sediment sediment NN 40404 4588 27 now now RB 40404 4588 28 gathered gather VBD 40404 4588 29 . . . 40404 4589 1 These these DT 40404 4589 2 Triassic Triassic NNP 40404 4589 3 rocks rock NNS 40404 4589 4 , , , 40404 4589 5 which which WDT 40404 4589 6 are be VBP 40404 4589 7 chiefly chiefly RB 40404 4589 8 sandstones sandstone NNS 40404 4589 9 , , , 40404 4589 10 hold hold VB 40404 4589 11 no no DT 40404 4589 12 marine marine JJ 40404 4589 13 fossils fossil NNS 40404 4589 14 , , , 40404 4589 15 and and CC 40404 4589 16 hence hence RB 40404 4589 17 were be VBD 40404 4589 18 not not RB 40404 4589 19 laid lay VBN 40404 4589 20 in in IN 40404 4589 21 open open JJ 40404 4589 22 arms arm NNS 40404 4589 23 of of IN 40404 4589 24 the the DT 40404 4589 25 sea sea NN 40404 4589 26 . . . 40404 4590 1 But but CC 40404 4590 2 their -PRON- PRP$ 40404 4590 3 layers layer NNS 40404 4590 4 are be VBP 40404 4590 5 often often RB 40404 4590 6 ripple ripple RB 40404 4590 7 - - HYPH 40404 4590 8 marked mark VBN 40404 4590 9 , , , 40404 4590 10 and and CC 40404 4590 11 contain contain VB 40404 4590 12 many many JJ 40404 4590 13 tracks track NNS 40404 4590 14 of of IN 40404 4590 15 reptiles reptile NNS 40404 4590 16 , , , 40404 4590 17 imprints imprint NNS 40404 4590 18 of of IN 40404 4590 19 raindrops raindrop NNS 40404 4590 20 , , , 40404 4590 21 and and CC 40404 4590 22 some some DT 40404 4590 23 fossil fossil JJ 40404 4590 24 wood wood NN 40404 4590 25 , , , 40404 4590 26 while while IN 40404 4590 27 an an DT 40404 4590 28 occasional occasional JJ 40404 4590 29 bed bed NN 40404 4590 30 of of IN 40404 4590 31 shale shale NNP 40404 4590 32 is be VBZ 40404 4590 33 filled fill VBN 40404 4590 34 with with IN 40404 4590 35 the the DT 40404 4590 36 remains remain NNS 40404 4590 37 of of IN 40404 4590 38 fishes fish NNS 40404 4590 39 . . . 40404 4591 1 We -PRON- PRP 40404 4591 2 may may MD 40404 4591 3 conceive conceive VB 40404 4591 4 , , , 40404 4591 5 then then RB 40404 4591 6 , , , 40404 4591 7 of of IN 40404 4591 8 the the DT 40404 4591 9 Connecticut Connecticut NNP 40404 4591 10 valley valley NN 40404 4591 11 and and CC 40404 4591 12 the the DT 40404 4591 13 larger large JJR 40404 4591 14 trough trough NN 40404 4591 15 to to IN 40404 4591 16 the the DT 40404 4591 17 southwest southwest NN 40404 4591 18 as as IN 40404 4591 19 basins basin NNS 40404 4591 20 gradually gradually RB 40404 4591 21 sinking sink VBG 40404 4591 22 at at IN 40404 4591 23 a a DT 40404 4591 24 rate rate NN 40404 4591 25 perhaps perhaps RB 40404 4591 26 no no RB 40404 4591 27 faster fast RBR 40404 4591 28 than than IN 40404 4591 29 that that DT 40404 4591 30 of of IN 40404 4591 31 the the DT 40404 4591 32 New New NNP 40404 4591 33 Jersey Jersey NNP 40404 4591 34 coast coast NN 40404 4591 35 to to IN 40404 4591 36 - - HYPH 40404 4591 37 day day NN 40404 4591 38 , , , 40404 4591 39 and and CC 40404 4591 40 as as RB 40404 4591 41 gradually gradually RB 40404 4591 42 aggraded aggrade VBN 40404 4591 43 by by IN 40404 4591 44 streams stream NNS 40404 4591 45 from from IN 40404 4591 46 the the DT 40404 4591 47 neighboring neighbor VBG 40404 4591 48 uplands upland NNS 40404 4591 49 . . . 40404 4592 1 Their -PRON- PRP$ 40404 4592 2 broad broad JJ 40404 4592 3 , , , 40404 4592 4 sandy sandy JJ 40404 4592 5 flats flat NNS 40404 4592 6 were be VBD 40404 4592 7 overflowed overflow VBN 40404 4592 8 by by IN 40404 4592 9 wandering wander VBG 40404 4592 10 streams stream NNS 40404 4592 11 , , , 40404 4592 12 and and CC 40404 4592 13 when when WRB 40404 4592 14 subsidence subsidence NN 40404 4592 15 gained gain VBN 40404 4592 16 on on IN 40404 4592 17 deposition deposition NN 40404 4592 18 shallow shallow JJ 40404 4592 19 lakes lake NNS 40404 4592 20 overspread overspread VBP 40404 4592 21 the the DT 40404 4592 22 alluvial alluvial JJ 40404 4592 23 plains plain NNS 40404 4592 24 . . . 40404 4593 1 Perhaps perhaps RB 40404 4593 2 now now RB 40404 4593 3 and and CC 40404 4593 4 then then RB 40404 4593 5 the the DT 40404 4593 6 basins basin NNS 40404 4593 7 became become VBD 40404 4593 8 long long JJ 40404 4593 9 , , , 40404 4593 10 brackish brackish JJ 40404 4593 11 estuaries estuary NNS 40404 4593 12 , , , 40404 4593 13 whose whose WP$ 40404 4593 14 low low JJ 40404 4593 15 shores shore NNS 40404 4593 16 were be VBD 40404 4593 17 swept sweep VBN 40404 4593 18 by by IN 40404 4593 19 the the DT 40404 4593 20 incoming incoming JJ 40404 4593 21 tide tide NN 40404 4593 22 and and CC 40404 4593 23 were be VBD 40404 4593 24 in in IN 40404 4593 25 turn turn NN 40404 4593 26 left leave VBD 40404 4593 27 bare bare JJ 40404 4593 28 at at IN 40404 4593 29 its -PRON- PRP$ 40404 4593 30 retreat retreat NN 40404 4593 31 to to TO 40404 4593 32 receive receive VB 40404 4593 33 the the DT 40404 4593 34 rain rain NN 40404 4593 35 prints print NNS 40404 4593 36 of of IN 40404 4593 37 passing pass VBG 40404 4593 38 showers shower NNS 40404 4593 39 and and CC 40404 4593 40 the the DT 40404 4593 41 tracks track NNS 40404 4593 42 of of IN 40404 4593 43 the the DT 40404 4593 44 troops troop NNS 40404 4593 45 of of IN 40404 4593 46 reptiles reptile NNS 40404 4593 47 which which WDT 40404 4593 48 inhabited inhabit VBD 40404 4593 49 these these DT 40404 4593 50 valleys valley NNS 40404 4593 51 . . . 40404 4594 1 The the DT 40404 4594 2 Triassic Triassic NNP 40404 4594 3 rocks rock NNS 40404 4594 4 are be VBP 40404 4594 5 mainly mainly RB 40404 4594 6 red red JJ 40404 4594 7 sandstones,--often sandstones,--often NNP 40404 4594 8 feldspathic feldspathic NNP 40404 4594 9 , , , 40404 4594 10 or or CC 40404 4594 11 arkose arkose VB 40404 4594 12 , , , 40404 4594 13 with with IN 40404 4594 14 some some DT 40404 4594 15 conglomerates conglomerate NNS 40404 4594 16 and and CC 40404 4594 17 shales shale NNS 40404 4594 18 . . . 40404 4595 1 Considering consider VBG 40404 4595 2 the the DT 40404 4595 3 large large JJ 40404 4595 4 amount amount NN 40404 4595 5 of of IN 40404 4595 6 feldspathic feldspathic JJ 40404 4595 7 material material NN 40404 4595 8 in in IN 40404 4595 9 these these DT 40404 4595 10 rocks rock NNS 40404 4595 11 , , , 40404 4595 12 do do VBP 40404 4595 13 you -PRON- PRP 40404 4595 14 infer infer VB 40404 4595 15 that that IN 40404 4595 16 they -PRON- PRP 40404 4595 17 were be VBD 40404 4595 18 derived derive VBN 40404 4595 19 from from IN 40404 4595 20 the the DT 40404 4595 21 adjacent adjacent JJ 40404 4595 22 crystalline crystalline NN 40404 4595 23 and and CC 40404 4595 24 metamorphic metamorphic JJ 40404 4595 25 rocks rock NNS 40404 4595 26 of of IN 40404 4595 27 the the DT 40404 4595 28 oldland oldland NN 40404 4595 29 of of IN 40404 4595 30 Appalachia Appalachia NNP 40404 4595 31 , , , 40404 4595 32 or or CC 40404 4595 33 from from IN 40404 4595 34 the the DT 40404 4595 35 sedimentary sedimentary JJ 40404 4595 36 Paleozoic Paleozoic NNP 40404 4595 37 rocks rock NNS 40404 4595 38 which which WDT 40404 4595 39 had have VBD 40404 4595 40 been be VBN 40404 4595 41 folded fold VBN 40404 4595 42 into into IN 40404 4595 43 mountains mountain NNS 40404 4595 44 during during IN 40404 4595 45 the the DT 40404 4595 46 Appalachian appalachian JJ 40404 4595 47 deformation deformation NN 40404 4595 48 ? ? . 40404 4596 1 If if IN 40404 4596 2 from from IN 40404 4596 3 the the DT 40404 4596 4 former former JJ 40404 4596 5 , , , 40404 4596 6 was be VBD 40404 4596 7 the the DT 40404 4596 8 drainage drainage NN 40404 4596 9 of of IN 40404 4596 10 the the DT 40404 4596 11 northern northern JJ 40404 4596 12 Appalachian appalachian JJ 40404 4596 13 mountain mountain NN 40404 4596 14 region region NN 40404 4596 15 then then RB 40404 4596 16 , , , 40404 4596 17 as as IN 40404 4596 18 now now RB 40404 4596 19 , , , 40404 4596 20 eastward eastward RB 40404 4596 21 and and CC 40404 4596 22 southeastward southeastward JJ 40404 4596 23 toward toward IN 40404 4596 24 the the DT 40404 4596 25 Atlantic Atlantic NNP 40404 4596 26 ? ? . 40404 4597 1 The the DT 40404 4597 2 Triassic Triassic NNP 40404 4597 3 sandstones sandstone NNS 40404 4597 4 are be VBP 40404 4597 5 voluminous voluminous JJ 40404 4597 6 , , , 40404 4597 7 measuring measure VBG 40404 4597 8 at at RB 40404 4597 9 least least JJS 40404 4597 10 a a DT 40404 4597 11 mile mile NN 40404 4597 12 in in IN 40404 4597 13 thickness thickness NN 40404 4597 14 , , , 40404 4597 15 and and CC 40404 4597 16 are be VBP 40404 4597 17 largely largely RB 40404 4597 18 of of IN 40404 4597 19 coarse coarse JJ 40404 4597 20 waste waste NN 40404 4597 21 . . . 40404 4598 1 What what WP 40404 4598 2 do do VBP 40404 4598 3 you -PRON- PRP 40404 4598 4 infer infer VB 40404 4598 5 as as IN 40404 4598 6 to to IN 40404 4598 7 the the DT 40404 4598 8 height height NN 40404 4598 9 of of IN 40404 4598 10 the the DT 40404 4598 11 lands land NNS 40404 4598 12 from from IN 40404 4598 13 which which WDT 40404 4598 14 the the DT 40404 4598 15 waste waste NN 40404 4598 16 was be VBD 40404 4598 17 shed shed VBN 40404 4598 18 , , , 40404 4598 19 or or CC 40404 4598 20 the the DT 40404 4598 21 direction direction NN 40404 4598 22 of of IN 40404 4598 23 the the DT 40404 4598 24 oscillation oscillation NN 40404 4598 25 which which WDT 40404 4598 26 they -PRON- PRP 40404 4598 27 were be VBD 40404 4598 28 then then RB 40404 4598 29 undergoing undergo VBG 40404 4598 30 ? ? . 40404 4599 1 In in IN 40404 4599 2 the the DT 40404 4599 3 southern southern JJ 40404 4599 4 basins basin NNS 40404 4599 5 , , , 40404 4599 6 as as IN 40404 4599 7 about about IN 40404 4599 8 Richmond Richmond NNP 40404 4599 9 , , , 40404 4599 10 Virginia Virginia NNP 40404 4599 11 , , , 40404 4599 12 are be VBP 40404 4599 13 valuable valuable JJ 40404 4599 14 beds bed NNS 40404 4599 15 of of IN 40404 4599 16 coal coal NN 40404 4599 17 ; ; : 40404 4599 18 what what WP 40404 4599 19 was be VBD 40404 4599 20 the the DT 40404 4599 21 physical physical JJ 40404 4599 22 geography geography NN 40404 4599 23 of of IN 40404 4599 24 these these DT 40404 4599 25 areas area NNS 40404 4599 26 when when WRB 40404 4599 27 the the DT 40404 4599 28 coal coal NN 40404 4599 29 was be VBD 40404 4599 30 being be VBG 40404 4599 31 formed form VBN 40404 4599 32 ? ? . 40404 4600 1 [ [ -LRB- 40404 4600 2 Illustration illustration NN 40404 4600 3 : : : 40404 4600 4 Fig Fig NNP 40404 4600 5 . . . 40404 4601 1 315 315 CD 40404 4601 2 . . . 40404 4602 1 Section section NN 40404 4602 2 of of IN 40404 4602 3 Triassic Triassic NNP 40404 4602 4 Sandstones Sandstones NNP 40404 4602 5 of of IN 40404 4602 6 the the DT 40404 4602 7 Connecticut Connecticut NNP 40404 4602 8 Valley Valley NNP 40404 4602 9 _ _ NNP 40404 4602 10 ss ss NNP 40404 4602 11 _ _ NNP 40404 4602 12 , , , 40404 4602 13 sandstones sandstone VBZ 40404 4602 14 ; ; : 40404 4602 15 _ _ NNP 40404 4602 16 ll will NNP 40404 4602 17 _ _ NNP 40404 4602 18 , , , 40404 4602 19 lava lava NN 40404 4602 20 sheets sheet NNS 40404 4602 21 ; ; : 40404 4602 22 _ _ NNP 40404 4602 23 cc cc NNP 40404 4602 24 _ _ NNP 40404 4602 25 , , , 40404 4602 26 crystalline crystalline NN 40404 4602 27 igneous igneous JJ 40404 4602 28 and and CC 40404 4602 29 metamorphic metamorphic JJ 40404 4602 30 rocks rock NNS 40404 4602 31 ] ] -RRB- 40404 4602 32 Interbedded interbedde VBN 40404 4602 33 with with IN 40404 4602 34 the the DT 40404 4602 35 Triassic Triassic NNP 40404 4602 36 sandstones sandstone NNS 40404 4602 37 are be VBP 40404 4602 38 contemporaneous contemporaneous JJ 40404 4602 39 lava lava NN 40404 4602 40 beds bed NNS 40404 4602 41 which which WDT 40404 4602 42 were be VBD 40404 4602 43 fed feed VBN 40404 4602 44 from from IN 40404 4602 45 dikes dike NNS 40404 4602 46 . . . 40404 4603 1 Volcanic volcanic JJ 40404 4603 2 action action NN 40404 4603 3 , , , 40404 4603 4 which which WDT 40404 4603 5 had have VBD 40404 4603 6 been be VBN 40404 4603 7 remarkably remarkably RB 40404 4603 8 absent absent JJ 40404 4603 9 in in IN 40404 4603 10 eastern eastern JJ 40404 4603 11 North North NNP 40404 4603 12 America America NNP 40404 4603 13 during during IN 40404 4603 14 Paleozoic Paleozoic NNP 40404 4603 15 times time NNS 40404 4603 16 , , , 40404 4603 17 was be VBD 40404 4603 18 well well RB 40404 4603 19 - - HYPH 40404 4603 20 marked mark VBN 40404 4603 21 in in IN 40404 4603 22 connection connection NN 40404 4603 23 with with IN 40404 4603 24 the the DT 40404 4603 25 warping warping NN 40404 4603 26 now now RB 40404 4603 27 in in IN 40404 4603 28 progress progress NN 40404 4603 29 . . . 40404 4604 1 Thick thick JJ 40404 4604 2 intrusive intrusive JJ 40404 4604 3 sheets sheet NNS 40404 4604 4 have have VBP 40404 4604 5 also also RB 40404 4604 6 been be VBN 40404 4604 7 driven drive VBN 40404 4604 8 in in IN 40404 4604 9 among among IN 40404 4604 10 the the DT 40404 4604 11 strata strata NN 40404 4604 12 , , , 40404 4604 13 as as IN 40404 4604 14 , , , 40404 4604 15 for for IN 40404 4604 16 example example NN 40404 4604 17 , , , 40404 4604 18 the the DT 40404 4604 19 sheet sheet NN 40404 4604 20 of of IN 40404 4604 21 the the DT 40404 4604 22 Palisades Palisades NNPS 40404 4604 23 of of IN 40404 4604 24 the the DT 40404 4604 25 Hudson Hudson NNP 40404 4604 26 , , , 40404 4604 27 described describe VBN 40404 4604 28 on on IN 40404 4604 29 page page NN 40404 4604 30 269 269 CD 40404 4604 31 . . . 40404 4605 1 The the DT 40404 4605 2 present present JJ 40404 4605 3 condition condition NN 40404 4605 4 of of IN 40404 4605 5 the the DT 40404 4605 6 Triassic Triassic NNP 40404 4605 7 sandstones sandstone NNS 40404 4605 8 of of IN 40404 4605 9 the the DT 40404 4605 10 Connecticut Connecticut NNP 40404 4605 11 valley valley NN 40404 4605 12 is be VBZ 40404 4605 13 seen see VBN 40404 4605 14 in in IN 40404 4605 15 Figure Figure NNP 40404 4605 16 315 315 CD 40404 4605 17 . . . 40404 4606 1 Were be VBD 40404 4606 2 the the DT 40404 4606 3 beds bed NNS 40404 4606 4 laid lay VBN 40404 4606 5 in in IN 40404 4606 6 their -PRON- PRP$ 40404 4606 7 present present JJ 40404 4606 8 attitude attitude NN 40404 4606 9 ? ? . 40404 4607 1 What what WP 40404 4607 2 was be VBD 40404 4607 3 the the DT 40404 4607 4 nature nature NN 40404 4607 5 of of IN 40404 4607 6 the the DT 40404 4607 7 deformation deformation NN 40404 4607 8 which which WDT 40404 4607 9 they -PRON- PRP 40404 4607 10 have have VBP 40404 4607 11 suffered suffer VBN 40404 4607 12 ? ? . 40404 4608 1 When when WRB 40404 4608 2 did do VBD 40404 4608 3 the the DT 40404 4608 4 intrusion intrusion NN 40404 4608 5 of of IN 40404 4608 6 lava lava NN 40404 4608 7 sheets sheet NNS 40404 4608 8 take take VBP 40404 4608 9 place place NN 40404 4608 10 relative relative JJ 40404 4608 11 to to IN 40404 4608 12 the the DT 40404 4608 13 deformation deformation NN 40404 4608 14 ? ? . 40404 4609 1 What what WDT 40404 4609 2 effect effect NN 40404 4609 3 have have VBP 40404 4609 4 these these DT 40404 4609 5 sheets sheet NNS 40404 4609 6 on on IN 40404 4609 7 the the DT 40404 4609 8 present present JJ 40404 4609 9 topography topography NN 40404 4609 10 , , , 40404 4609 11 and and CC 40404 4609 12 why why WRB 40404 4609 13 ? ? . 40404 4610 1 Assuming assume VBG 40404 4610 2 that that IN 40404 4610 3 the the DT 40404 4610 4 Triassic Triassic NNP 40404 4610 5 deformation deformation NN 40404 4610 6 went go VBD 40404 4610 7 on on RP 40404 4610 8 more more RBR 40404 4610 9 rapidly rapidly RB 40404 4610 10 than than IN 40404 4610 11 denudation denudation NN 40404 4610 12 , , , 40404 4610 13 what what WP 40404 4610 14 was be VBD 40404 4610 15 its -PRON- PRP$ 40404 4610 16 effect effect NN 40404 4610 17 on on IN 40404 4610 18 the the DT 40404 4610 19 topography topography NN 40404 4610 20 of of IN 40404 4610 21 the the DT 40404 4610 22 time time NN 40404 4610 23 ? ? . 40404 4611 1 Are be VBP 40404 4611 2 there there EX 40404 4611 3 any any DT 40404 4611 4 of of IN 40404 4611 5 its -PRON- PRP$ 40404 4611 6 results result NNS 40404 4611 7 remaining remain VBG 40404 4611 8 in in IN 40404 4611 9 the the DT 40404 4611 10 topography topography NN 40404 4611 11 of of IN 40404 4611 12 to to IN 40404 4611 13 - - HYPH 40404 4611 14 day day NN 40404 4611 15 ? ? . 40404 4612 1 Do do VBP 40404 4612 2 the the DT 40404 4612 3 Triassic Triassic NNP 40404 4612 4 areas area NNS 40404 4612 5 now now RB 40404 4612 6 stand stand VBP 40404 4612 7 higher high JJR 40404 4612 8 or or CC 40404 4612 9 lower low JJR 40404 4612 10 than than IN 40404 4612 11 the the DT 40404 4612 12 surrounding surround VBG 40404 4612 13 country country NN 40404 4612 14 , , , 40404 4612 15 and and CC 40404 4612 16 why why WRB 40404 4612 17 ? ? . 40404 4613 1 How how WRB 40404 4613 2 do do VBP 40404 4613 3 the the DT 40404 4613 4 Triassic Triassic NNP 40404 4613 5 sandstones sandstone NNS 40404 4613 6 and and CC 40404 4613 7 shales shale NNS 40404 4613 8 compare compare VBP 40404 4613 9 in in IN 40404 4613 10 hardness hardness NN 40404 4613 11 with with IN 40404 4613 12 the the DT 40404 4613 13 igneous igneous JJ 40404 4613 14 and and CC 40404 4613 15 metamorphic metamorphic JJ 40404 4613 16 rocks rock NNS 40404 4613 17 about about IN 40404 4613 18 them -PRON- PRP 40404 4613 19 ? ? . 40404 4614 1 The the DT 40404 4614 2 Jurassic Jurassic NNP 40404 4614 3 strata strata NN 40404 4614 4 are be VBP 40404 4614 5 wanting want VBG 40404 4614 6 over over IN 40404 4614 7 the the DT 40404 4614 8 Triassic Triassic NNP 40404 4614 9 areas area NNS 40404 4614 10 and and CC 40404 4614 11 over over IN 40404 4614 12 all all DT 40404 4614 13 of of IN 40404 4614 14 eastern eastern JJ 40404 4614 15 North North NNP 40404 4614 16 America America NNP 40404 4614 17 . . . 40404 4615 1 Was be VBD 40404 4615 2 this this DT 40404 4615 3 region region NN 40404 4615 4 land land NN 40404 4615 5 or or CC 40404 4615 6 sea sea NN 40404 4615 7 , , , 40404 4615 8 an an DT 40404 4615 9 area area NN 40404 4615 10 of of IN 40404 4615 11 erosion erosion NN 40404 4615 12 or or CC 40404 4615 13 sedimentation sedimentation NN 40404 4615 14 , , , 40404 4615 15 during during IN 40404 4615 16 the the DT 40404 4615 17 Jurassic Jurassic NNP 40404 4615 18 period period NN 40404 4615 19 ? ? . 40404 4616 1 In in IN 40404 4616 2 New New NNP 40404 4616 3 Jersey Jersey NNP 40404 4616 4 , , , 40404 4616 5 Pennsylvania Pennsylvania NNP 40404 4616 6 , , , 40404 4616 7 and and CC 40404 4616 8 farther far RBR 40404 4616 9 southwest southwest VB 40404 4616 10 the the DT 40404 4616 11 lowest low JJS 40404 4616 12 strata strata NN 40404 4616 13 of of IN 40404 4616 14 the the DT 40404 4616 15 next next JJ 40404 4616 16 period period NN 40404 4616 17 , , , 40404 4616 18 the the DT 40404 4616 19 Cretaceous cretaceous JJ 40404 4616 20 , , , 40404 4616 21 rest rest VB 40404 4616 22 on on IN 40404 4616 23 the the DT 40404 4616 24 eroded erode VBN 40404 4616 25 edges edge NNS 40404 4616 26 of of IN 40404 4616 27 the the DT 40404 4616 28 earlier early JJR 40404 4616 29 rocks rock NNS 40404 4616 30 . . . 40404 4617 1 The the DT 40404 4617 2 surface surface NN 40404 4617 3 on on IN 40404 4617 4 which which WDT 40404 4617 5 they -PRON- PRP 40404 4617 6 lie lie VBP 40404 4617 7 is be VBZ 40404 4617 8 worn wear VBN 40404 4617 9 so so RB 40404 4617 10 even even RB 40404 4617 11 that that IN 40404 4617 12 we -PRON- PRP 40404 4617 13 must must MD 40404 4617 14 believe believe VB 40404 4617 15 that that IN 40404 4617 16 at at IN 40404 4617 17 the the DT 40404 4617 18 opening opening NN 40404 4617 19 of of IN 40404 4617 20 the the DT 40404 4617 21 Cretaceous cretaceous JJ 40404 4617 22 the the DT 40404 4617 23 oldland oldland NN 40404 4617 24 of of IN 40404 4617 25 Appalachia Appalachia NNP 40404 4617 26 , , , 40404 4617 27 including include VBG 40404 4617 28 the the DT 40404 4617 29 Triassic Triassic NNP 40404 4617 30 areas area NNS 40404 4617 31 , , , 40404 4617 32 had have VBD 40404 4617 33 been be VBN 40404 4617 34 baseleveled baselevele VBN 40404 4617 35 at at IN 40404 4617 36 least least JJS 40404 4617 37 near near IN 40404 4617 38 the the DT 40404 4617 39 coast coast NN 40404 4617 40 . . . 40404 4618 1 When when WRB 40404 4618 2 , , , 40404 4618 3 therefore therefore RB 40404 4618 4 , , , 40404 4618 5 did do VBD 40404 4618 6 the the DT 40404 4618 7 deformation deformation NN 40404 4618 8 of of IN 40404 4618 9 the the DT 40404 4618 10 Triassic Triassic NNP 40404 4618 11 rocks rock NNS 40404 4618 12 occur occur VBP 40404 4618 13 ? ? . 40404 4619 1 = = NFP 40404 4619 2 Western Western NNP 40404 4619 3 North North NNP 40404 4619 4 America.= America.= NNP 40404 4619 5 Triassic Triassic NNP 40404 4619 6 strata stratum NNS 40404 4619 7 infolded infolde VBN 40404 4619 8 in in IN 40404 4619 9 the the DT 40404 4619 10 Sierra Sierra NNP 40404 4619 11 Nevada Nevada NNP 40404 4619 12 Mountains Mountains NNPS 40404 4619 13 carry carry VBP 40404 4619 14 marine marine JJ 40404 4619 15 fossils fossil NNS 40404 4619 16 and and CC 40404 4619 17 reach reach VB 40404 4619 18 a a DT 40404 4619 19 thickness thickness NN 40404 4619 20 of of IN 40404 4619 21 nearly nearly RB 40404 4619 22 five five CD 40404 4619 23 thousand thousand CD 40404 4619 24 feet foot NNS 40404 4619 25 . . . 40404 4620 1 California California NNP 40404 4620 2 was be VBD 40404 4620 3 then then RB 40404 4620 4 under under IN 40404 4620 5 water water NN 40404 4620 6 , , , 40404 4620 7 and and CC 40404 4620 8 the the DT 40404 4620 9 site site NN 40404 4620 10 of of IN 40404 4620 11 the the DT 40404 4620 12 Sierra Sierra NNP 40404 4620 13 was be VBD 40404 4620 14 a a DT 40404 4620 15 subsiding subsiding JJ 40404 4620 16 trough trough NN 40404 4620 17 slowly slowly RB 40404 4620 18 filling fill VBG 40404 4620 19 with with IN 40404 4620 20 waste waste NN 40404 4620 21 from from IN 40404 4620 22 the the DT 40404 4620 23 Great Great NNP 40404 4620 24 Basin Basin NNP 40404 4620 25 land land NN 40404 4620 26 to to IN 40404 4620 27 the the DT 40404 4620 28 east east NN 40404 4620 29 . . . 40404 4621 1 Over over IN 40404 4621 2 a a DT 40404 4621 3 long long JJ 40404 4621 4 belt belt NN 40404 4621 5 which which WDT 40404 4621 6 reaches reach VBZ 40404 4621 7 from from IN 40404 4621 8 Wyoming Wyoming NNP 40404 4621 9 across across IN 40404 4621 10 Colorado Colorado NNP 40404 4621 11 into into IN 40404 4621 12 New New NNP 40404 4621 13 Mexico Mexico NNP 40404 4621 14 no no DT 40404 4621 15 Triassic Triassic NNP 40404 4621 16 sediments sediment NNS 40404 4621 17 are be VBP 40404 4621 18 found find VBN 40404 4621 19 , , , 40404 4621 20 nor nor CC 40404 4621 21 is be VBZ 40404 4621 22 there there EX 40404 4621 23 any any DT 40404 4621 24 evidence evidence NN 40404 4621 25 that that IN 40404 4621 26 they -PRON- PRP 40404 4621 27 were be VBD 40404 4621 28 ever ever RB 40404 4621 29 present present JJ 40404 4621 30 ; ; : 40404 4621 31 hence hence RB 40404 4621 32 this this DT 40404 4621 33 area area NN 40404 4621 34 was be VBD 40404 4621 35 high high JJ 40404 4621 36 land land NN 40404 4621 37 suffering suffer VBG 40404 4621 38 erosion erosion NN 40404 4621 39 during during IN 40404 4621 40 the the DT 40404 4621 41 Triassic Triassic NNP 40404 4621 42 . . . 40404 4622 1 On on IN 40404 4622 2 each each DT 40404 4622 3 side side NN 40404 4622 4 of of IN 40404 4622 5 it -PRON- PRP 40404 4622 6 , , , 40404 4622 7 in in IN 40404 4622 8 eastern eastern JJ 40404 4622 9 Colorado Colorado NNP 40404 4622 10 and and CC 40404 4622 11 about about IN 40404 4622 12 the the DT 40404 4622 13 Black Black NNP 40404 4622 14 Hills Hills NNPS 40404 4622 15 , , , 40404 4622 16 in in IN 40404 4622 17 western western JJ 40404 4622 18 Texas Texas NNP 40404 4622 19 , , , 40404 4622 20 in in IN 40404 4622 21 Utah Utah NNP 40404 4622 22 , , , 40404 4622 23 over over IN 40404 4622 24 the the DT 40404 4622 25 site site NN 40404 4622 26 of of IN 40404 4622 27 the the DT 40404 4622 28 Wasatch Wasatch NNP 40404 4622 29 Mountains Mountains NNPS 40404 4622 30 , , , 40404 4622 31 and and CC 40404 4622 32 southward southward VB 40404 4622 33 into into IN 40404 4622 34 Arizona Arizona NNP 40404 4622 35 over over IN 40404 4622 36 the the DT 40404 4622 37 plateaus plateaus NN 40404 4622 38 trenched trench VBN 40404 4622 39 by by IN 40404 4622 40 the the DT 40404 4622 41 Colorado Colorado NNP 40404 4622 42 River River NNP 40404 4622 43 , , , 40404 4622 44 are be VBP 40404 4622 45 large large JJ 40404 4622 46 areas area NNS 40404 4622 47 of of IN 40404 4622 48 Triassic Triassic NNP 40404 4622 49 rocks rock NNS 40404 4622 50 , , , 40404 4622 51 sandstones sandstone VBZ 40404 4622 52 chiefly chiefly RB 40404 4622 53 , , , 40404 4622 54 with with IN 40404 4622 55 some some DT 40404 4622 56 rock rock NN 40404 4622 57 salt salt NN 40404 4622 58 and and CC 40404 4622 59 gypsum gypsum NN 40404 4622 60 . . . 40404 4623 1 Fossils fossil NNS 40404 4623 2 are be VBP 40404 4623 3 very very RB 40404 4623 4 rare rare JJ 40404 4623 5 and and CC 40404 4623 6 none none NN 40404 4623 7 of of IN 40404 4623 8 them -PRON- PRP 40404 4623 9 marine marine RB 40404 4623 10 . . . 40404 4624 1 Here here RB 40404 4624 2 , , , 40404 4624 3 then then RB 40404 4624 4 , , , 40404 4624 5 lay lie VBD 40404 4624 6 broad broad JJ 40404 4624 7 shallow shallow JJ 40404 4624 8 lakes lake NNS 40404 4624 9 often often RB 40404 4624 10 salt salt NN 40404 4624 11 , , , 40404 4624 12 and and CC 40404 4624 13 warped warped JJ 40404 4624 14 basins basin NNS 40404 4624 15 , , , 40404 4624 16 in in IN 40404 4624 17 which which WDT 40404 4624 18 the the DT 40404 4624 19 waste waste NN 40404 4624 20 of of IN 40404 4624 21 the the DT 40404 4624 22 adjacent adjacent JJ 40404 4624 23 uplands upland NNS 40404 4624 24 gathered gather VBD 40404 4624 25 . . . 40404 4625 1 To to IN 40404 4625 2 this this DT 40404 4625 3 system system NN 40404 4625 4 belong belong VB 40404 4625 5 the the DT 40404 4625 6 sandstones sandstone NNS 40404 4625 7 of of IN 40404 4625 8 the the DT 40404 4625 9 Garden Garden NNP 40404 4625 10 of of IN 40404 4625 11 the the DT 40404 4625 12 Gods Gods NNPS 40404 4625 13 in in IN 40404 4625 14 Colorado Colorado NNP 40404 4625 15 , , , 40404 4625 16 which which WDT 40404 4625 17 later later RBR 40404 4625 18 earth earth NN 40404 4625 19 movements movement NNS 40404 4625 20 have have VBP 40404 4625 21 upturned upturne VBN 40404 4625 22 with with IN 40404 4625 23 the the DT 40404 4625 24 uplifted uplifted JJ 40404 4625 25 mountain mountain NN 40404 4625 26 flanks flank NNS 40404 4625 27 . . . 40404 4626 1 The the DT 40404 4626 2 Jurassic Jurassic NNP 40404 4626 3 was be VBD 40404 4626 4 marked mark VBN 40404 4626 5 with with IN 40404 4626 6 varied varied JJ 40404 4626 7 oscillations oscillation NNS 40404 4626 8 and and CC 40404 4626 9 wide wide JJ 40404 4626 10 changes change NNS 40404 4626 11 in in IN 40404 4626 12 the the DT 40404 4626 13 outline outline NN 40404 4626 14 of of IN 40404 4626 15 sea sea NN 40404 4626 16 and and CC 40404 4626 17 land land NN 40404 4626 18 . . . 40404 4627 1 Jurassic Jurassic NNP 40404 4627 2 shales shale NNS 40404 4627 3 of of IN 40404 4627 4 immense immense JJ 40404 4627 5 thickness thickness NN 40404 4627 6 -- -- : 40404 4627 7 now now RB 40404 4627 8 metamorphosed metamorphose VBN 40404 4627 9 into into IN 40404 4627 10 slates slate NNS 40404 4627 11 -- -- : 40404 4627 12 are be VBP 40404 4627 13 found find VBN 40404 4627 14 infolded infolde VBN 40404 4627 15 into into IN 40404 4627 16 the the DT 40404 4627 17 Sierra Sierra NNP 40404 4627 18 Nevada Nevada NNP 40404 4627 19 Mountains Mountains NNPS 40404 4627 20 . . . 40404 4628 1 Hence hence RB 40404 4628 2 during during IN 40404 4628 3 Jurassic Jurassic NNP 40404 4628 4 times time VBZ 40404 4628 5 the the DT 40404 4628 6 Sierra Sierra NNP 40404 4628 7 trough trough NN 40404 4628 8 continued continue VBD 40404 4628 9 to to TO 40404 4628 10 subside subside VB 40404 4628 11 , , , 40404 4628 12 and and CC 40404 4628 13 enormous enormous JJ 40404 4628 14 deposits deposit NNS 40404 4628 15 of of IN 40404 4628 16 mud mud NN 40404 4628 17 were be VBD 40404 4628 18 washed wash VBN 40404 4628 19 into into IN 40404 4628 20 it -PRON- PRP 40404 4628 21 from from IN 40404 4628 22 the the DT 40404 4628 23 land land NN 40404 4628 24 lying lie VBG 40404 4628 25 to to IN 40404 4628 26 the the DT 40404 4628 27 east east NN 40404 4628 28 . . . 40404 4629 1 Contemporaneous contemporaneous JJ 40404 4629 2 lava lava NN 40404 4629 3 flows flow NNS 40404 4629 4 interbedded interbedde VBN 40404 4629 5 with with IN 40404 4629 6 the the DT 40404 4629 7 strata strata NN 40404 4629 8 show show VBP 40404 4629 9 that that IN 40404 4629 10 volcanic volcanic JJ 40404 4629 11 action action NN 40404 4629 12 accompanied accompany VBD 40404 4629 13 the the DT 40404 4629 14 downwarp downwarp NN 40404 4629 15 , , , 40404 4629 16 and and CC 40404 4629 17 that that IN 40404 4629 18 molten molten JJ 40404 4629 19 rock rock NN 40404 4629 20 was be VBD 40404 4629 21 driven drive VBN 40404 4629 22 upward upward RB 40404 4629 23 through through IN 40404 4629 24 fissures fissure NNS 40404 4629 25 in in IN 40404 4629 26 the the DT 40404 4629 27 crust crust NN 40404 4629 28 and and CC 40404 4629 29 outspread outspread VB 40404 4629 30 over over IN 40404 4629 31 the the DT 40404 4629 32 sea sea NN 40404 4629 33 floor floor NN 40404 4629 34 in in IN 40404 4629 35 sheets sheet NNS 40404 4629 36 of of IN 40404 4629 37 lava lava NN 40404 4629 38 . . . 40404 4630 1 = = NFP 40404 4630 2 The the DT 40404 4630 3 Sierra Sierra NNP 40404 4630 4 deformation.= deformation.= NN 40404 4630 5 Ever ever RB 40404 4630 6 since since IN 40404 4630 7 the the DT 40404 4630 8 middle middle NN 40404 4630 9 of of IN 40404 4630 10 the the DT 40404 4630 11 Silurian Silurian NNP 40404 4630 12 , , , 40404 4630 13 the the DT 40404 4630 14 Sierra Sierra NNP 40404 4630 15 trough trough NN 40404 4630 16 had have VBD 40404 4630 17 been be VBN 40404 4630 18 sinking sink VBG 40404 4630 19 , , , 40404 4630 20 though though IN 40404 4630 21 no no DT 40404 4630 22 doubt doubt NN 40404 4630 23 with with IN 40404 4630 24 halts halt NNS 40404 4630 25 and and CC 40404 4630 26 interruptions interruption NNS 40404 4630 27 , , , 40404 4630 28 until until IN 40404 4630 29 it -PRON- PRP 40404 4630 30 contained contain VBD 40404 4630 31 nearly nearly RB 40404 4630 32 twenty twenty CD 40404 4630 33 - - HYPH 40404 4630 34 five five CD 40404 4630 35 thousand thousand CD 40404 4630 36 feet foot NNS 40404 4630 37 of of IN 40404 4630 38 sediment sediment NN 40404 4630 39 . . . 40404 4631 1 At at IN 40404 4631 2 the the DT 40404 4631 3 close close NN 40404 4631 4 of of IN 40404 4631 5 the the DT 40404 4631 6 Jurassic Jurassic NNP 40404 4631 7 it -PRON- PRP 40404 4631 8 yielded yield VBD 40404 4631 9 to to IN 40404 4631 10 lateral lateral JJ 40404 4631 11 pressure pressure NN 40404 4631 12 and and CC 40404 4631 13 the the DT 40404 4631 14 vast vast JJ 40404 4631 15 pile pile NN 40404 4631 16 of of IN 40404 4631 17 strata strata NN 40404 4631 18 was be VBD 40404 4631 19 crumpled crumple VBN 40404 4631 20 and and CC 40404 4631 21 upheaved upheave VBN 40404 4631 22 into into IN 40404 4631 23 towering tower VBG 40404 4631 24 mountains mountain NNS 40404 4631 25 . . . 40404 4632 1 The the DT 40404 4632 2 Mesozoic Mesozoic NNP 40404 4632 3 muds mud NNS 40404 4632 4 were be VBD 40404 4632 5 hardened harden VBN 40404 4632 6 and and CC 40404 4632 7 squeezed squeeze VBN 40404 4632 8 into into IN 40404 4632 9 slates slate NNS 40404 4632 10 . . . 40404 4633 1 The the DT 40404 4633 2 rocks rock NNS 40404 4633 3 were be VBD 40404 4633 4 wrenched wrench VBN 40404 4633 5 and and CC 40404 4633 6 broken break VBN 40404 4633 7 , , , 40404 4633 8 and and CC 40404 4633 9 underground underground JJ 40404 4633 10 waters water NNS 40404 4633 11 began begin VBD 40404 4633 12 the the DT 40404 4633 13 work work NN 40404 4633 14 of of IN 40404 4633 15 filling fill VBG 40404 4633 16 their -PRON- PRP$ 40404 4633 17 fissures fissure NNS 40404 4633 18 with with IN 40404 4633 19 gold gold NN 40404 4633 20 - - HYPH 40404 4633 21 bearing bear VBG 40404 4633 22 quartz quartz NN 40404 4633 23 , , , 40404 4633 24 which which WDT 40404 4633 25 was be VBD 40404 4633 26 yet yet RB 40404 4633 27 to to TO 40404 4633 28 wait wait VB 40404 4633 29 millions million NNS 40404 4633 30 of of IN 40404 4633 31 years year NNS 40404 4633 32 before before IN 40404 4633 33 the the DT 40404 4633 34 arrival arrival NN 40404 4633 35 of of IN 40404 4633 36 man man NN 40404 4633 37 to to TO 40404 4633 38 mine mine VB 40404 4633 39 it -PRON- PRP 40404 4633 40 . . . 40404 4634 1 Immense immense JJ 40404 4634 2 bodies body NNS 40404 4634 3 of of IN 40404 4634 4 molten molten JJ 40404 4634 5 rock rock NN 40404 4634 6 were be VBD 40404 4634 7 intruded intrude VBN 40404 4634 8 into into IN 40404 4634 9 the the DT 40404 4634 10 crust crust NN 40404 4634 11 as as IN 40404 4634 12 it -PRON- PRP 40404 4634 13 suffered suffer VBD 40404 4634 14 deformation deformation NN 40404 4634 15 , , , 40404 4634 16 and and CC 40404 4634 17 these these DT 40404 4634 18 appear appear VBP 40404 4634 19 in in IN 40404 4634 20 the the DT 40404 4634 21 large large JJ 40404 4634 22 areas area NNS 40404 4634 23 of of IN 40404 4634 24 granite granite NN 40404 4634 25 which which WDT 40404 4634 26 the the DT 40404 4634 27 later later JJ 40404 4634 28 denudation denudation NN 40404 4634 29 of of IN 40404 4634 30 the the DT 40404 4634 31 range range NN 40404 4634 32 has have VBZ 40404 4634 33 brought bring VBN 40404 4634 34 to to IN 40404 4634 35 light light NN 40404 4634 36 . . . 40404 4635 1 The the DT 40404 4635 2 same same JJ 40404 4635 3 movements movement NNS 40404 4635 4 probably probably RB 40404 4635 5 uplifted uplift VBD 40404 4635 6 the the DT 40404 4635 7 rocks rock NNS 40404 4635 8 of of IN 40404 4635 9 the the DT 40404 4635 10 Coast Coast NNP 40404 4635 11 Range Range NNP 40404 4635 12 in in IN 40404 4635 13 a a DT 40404 4635 14 chain chain NN 40404 4635 15 of of IN 40404 4635 16 islands island NNS 40404 4635 17 . . . 40404 4636 1 The the DT 40404 4636 2 whole whole JJ 40404 4636 3 western western JJ 40404 4636 4 part part NN 40404 4636 5 of of IN 40404 4636 6 the the DT 40404 4636 7 continent continent NN 40404 4636 8 was be VBD 40404 4636 9 raised raise VBN 40404 4636 10 and and CC 40404 4636 11 its -PRON- PRP$ 40404 4636 12 seas sea NNS 40404 4636 13 and and CC 40404 4636 14 lakes lake NNS 40404 4636 15 were be VBD 40404 4636 16 for for IN 40404 4636 17 the the DT 40404 4636 18 most most JJS 40404 4636 19 part part NN 40404 4636 20 drained drain VBN 40404 4636 21 away away RB 40404 4636 22 . . . 40404 4637 1 = = NFP 40404 4637 2 The the DT 40404 4637 3 British british JJ 40404 4637 4 Isles.= Isles.= NNP 40404 4637 5 The the DT 40404 4637 6 Triassic Triassic NNP 40404 4637 7 strata strata NN 40404 4637 8 of of IN 40404 4637 9 the the DT 40404 4637 10 British british JJ 40404 4637 11 Isles Isles NNPS 40404 4637 12 are be VBP 40404 4637 13 continental continental JJ 40404 4637 14 , , , 40404 4637 15 and and CC 40404 4637 16 include include VBP 40404 4637 17 breccia breccia NNP 40404 4637 18 beds bed NNS 40404 4637 19 of of IN 40404 4637 20 cemented cemented JJ 40404 4637 21 talus talu NNS 40404 4637 22 , , , 40404 4637 23 deposits deposit NNS 40404 4637 24 of of IN 40404 4637 25 salt salt NN 40404 4637 26 and and CC 40404 4637 27 gypsum gypsum NN 40404 4637 28 , , , 40404 4637 29 and and CC 40404 4637 30 sandstones sandstone NNS 40404 4637 31 whose whose WP$ 40404 4637 32 rounded rounded JJ 40404 4637 33 and and CC 40404 4637 34 polished polished JJ 40404 4637 35 grains grain NNS 40404 4637 36 are be VBP 40404 4637 37 those those DT 40404 4637 38 of of IN 40404 4637 39 the the DT 40404 4637 40 wind wind NN 40404 4637 41 - - HYPH 40404 4637 42 blown blow VBN 40404 4637 43 sands sand NNS 40404 4637 44 of of IN 40404 4637 45 deserts desert NNS 40404 4637 46 . . . 40404 4638 1 In in IN 40404 4638 2 Triassic Triassic NNP 40404 4638 3 times time VBZ 40404 4638 4 the the DT 40404 4638 5 British british JJ 40404 4638 6 Isles Isles NNPS 40404 4638 7 were be VBD 40404 4638 8 part part NN 40404 4638 9 of of IN 40404 4638 10 a a DT 40404 4638 11 desert desert NN 40404 4638 12 extending extend VBG 40404 4638 13 over over IN 40404 4638 14 much much JJ 40404 4638 15 of of IN 40404 4638 16 northwestern northwestern JJ 40404 4638 17 Europe Europe NNP 40404 4638 18 . . . 40404 4639 1 The the DT 40404 4639 2 Cretaceous Cretaceous NNP 40404 4639 3 The the DT 40404 4639 4 third third JJ 40404 4639 5 great great JJ 40404 4639 6 system system NN 40404 4639 7 of of IN 40404 4639 8 the the DT 40404 4639 9 Mesozoic Mesozoic NNP 40404 4639 10 includes include VBZ 40404 4639 11 many many JJ 40404 4639 12 formations formation NNS 40404 4639 13 , , , 40404 4639 14 marine marine NNP 40404 4639 15 and and CC 40404 4639 16 continental continental NNP 40404 4639 17 , , , 40404 4639 18 which which WDT 40404 4639 19 record record VBP 40404 4639 20 a a DT 40404 4639 21 long long JJ 40404 4639 22 and and CC 40404 4639 23 complicated complicated JJ 40404 4639 24 history history NN 40404 4639 25 marked mark VBN 40404 4639 26 by by IN 40404 4639 27 great great JJ 40404 4639 28 oscillations oscillation NNS 40404 4639 29 of of IN 40404 4639 30 the the DT 40404 4639 31 crust crust NN 40404 4639 32 and and CC 40404 4639 33 wide wide JJ 40404 4639 34 changes change NNS 40404 4639 35 in in IN 40404 4639 36 the the DT 40404 4639 37 outlines outline NNS 40404 4639 38 of of IN 40404 4639 39 sea sea NN 40404 4639 40 and and CC 40404 4639 41 land land NN 40404 4639 42 . . . 40404 4640 1 = = NFP 40404 4640 2 Early early JJ 40404 4640 3 Cretaceous.= Cretaceous.= NNP 40404 4640 4 In in IN 40404 4640 5 eastern eastern JJ 40404 4640 6 North North NNP 40404 4640 7 America America NNP 40404 4640 8 the the DT 40404 4640 9 lowest low JJS 40404 4640 10 Cretaceous cretaceous JJ 40404 4640 11 series series NN 40404 4640 12 comprises comprise VBZ 40404 4640 13 fresh fresh JJ 40404 4640 14 - - HYPH 40404 4640 15 water water NN 40404 4640 16 formations formation NNS 40404 4640 17 which which WDT 40404 4640 18 are be VBP 40404 4640 19 traced trace VBN 40404 4640 20 from from IN 40404 4640 21 Nantucket Nantucket NNP 40404 4640 22 across across IN 40404 4640 23 Martha Martha NNP 40404 4640 24 's 's POS 40404 4640 25 Vineyard Vineyard NNP 40404 4640 26 and and CC 40404 4640 27 Long Long NNP 40404 4640 28 Island Island NNP 40404 4640 29 , , , 40404 4640 30 and and CC 40404 4640 31 through through IN 40404 4640 32 New New NNP 40404 4640 33 Jersey Jersey NNP 40404 4640 34 southward southward RB 40404 4640 35 into into IN 40404 4640 36 Georgia Georgia NNP 40404 4640 37 . . . 40404 4641 1 They -PRON- PRP 40404 4641 2 rest rest VBP 40404 4641 3 unconformably unconformably RB 40404 4641 4 on on IN 40404 4641 5 the the DT 40404 4641 6 Triassic Triassic NNP 40404 4641 7 sandstones sandstone NNS 40404 4641 8 and and CC 40404 4641 9 the the DT 40404 4641 10 older old JJR 40404 4641 11 rocks rock NNS 40404 4641 12 of of IN 40404 4641 13 the the DT 40404 4641 14 region region NN 40404 4641 15 . . . 40404 4642 1 The the DT 40404 4642 2 Atlantic Atlantic NNP 40404 4642 3 shore shore NN 40404 4642 4 line line NN 40404 4642 5 was be VBD 40404 4642 6 still still RB 40404 4642 7 farther far RBR 40404 4642 8 out out RB 40404 4642 9 than than IN 40404 4642 10 now now RB 40404 4642 11 in in IN 40404 4642 12 the the DT 40404 4642 13 northern northern JJ 40404 4642 14 states state NNS 40404 4642 15 . . . 40404 4643 1 Again again RB 40404 4643 2 , , , 40404 4643 3 as as IN 40404 4643 4 during during IN 40404 4643 5 the the DT 40404 4643 6 Triassic Triassic NNP 40404 4643 7 , , , 40404 4643 8 a a DT 40404 4643 9 warping warping NN 40404 4643 10 of of IN 40404 4643 11 the the DT 40404 4643 12 crust crust NN 40404 4643 13 formed form VBD 40404 4643 14 a a DT 40404 4643 15 long long JJ 40404 4643 16 trough trough NN 40404 4643 17 parallel parallel NN 40404 4643 18 to to IN 40404 4643 19 the the DT 40404 4643 20 coast coast NN 40404 4643 21 and and CC 40404 4643 22 to to IN 40404 4643 23 the the DT 40404 4643 24 Appalachian appalachian JJ 40404 4643 25 ridges ridge NNS 40404 4643 26 , , , 40404 4643 27 but but CC 40404 4643 28 cut cut VBD 40404 4643 29 off off RP 40404 4643 30 from from IN 40404 4643 31 the the DT 40404 4643 32 sea sea NN 40404 4643 33 ; ; : 40404 4643 34 and and CC 40404 4643 35 here here RB 40404 4643 36 the the DT 40404 4643 37 continental continental JJ 40404 4643 38 deposits deposit NNS 40404 4643 39 of of IN 40404 4643 40 the the DT 40404 4643 41 early early JJ 40404 4643 42 Cretaceous Cretaceous NNP 40404 4643 43 were be VBD 40404 4643 44 laid lay VBN 40404 4643 45 . . . 40404 4644 1 Along along IN 40404 4644 2 the the DT 40404 4644 3 Gulf Gulf NNP 40404 4644 4 of of IN 40404 4644 5 Mexico Mexico NNP 40404 4644 6 the the DT 40404 4644 7 same same JJ 40404 4644 8 series series NN 40404 4644 9 was be VBD 40404 4644 10 deposited deposit VBN 40404 4644 11 under under IN 40404 4644 12 like like JJ 40404 4644 13 conditions condition NNS 40404 4644 14 over over IN 40404 4644 15 the the DT 40404 4644 16 area area NN 40404 4644 17 known know VBN 40404 4644 18 as as IN 40404 4644 19 the the DT 40404 4644 20 Mississippi Mississippi NNP 40404 4644 21 embayment embayment NN 40404 4644 22 , , , 40404 4644 23 reaching reach VBG 40404 4644 24 from from IN 40404 4644 25 Georgia Georgia NNP 40404 4644 26 northwestward northwestward RB 40404 4644 27 into into IN 40404 4644 28 Tennessee Tennessee NNP 40404 4644 29 and and CC 40404 4644 30 thence thence NN 40404 4644 31 across across IN 40404 4644 32 into into IN 40404 4644 33 Arkansas Arkansas NNP 40404 4644 34 and and CC 40404 4644 35 southward southward RB 40404 4644 36 into into IN 40404 4644 37 Texas Texas NNP 40404 4644 38 . . . 40404 4645 1 In in IN 40404 4645 2 the the DT 40404 4645 3 Southwest Southwest NNP 40404 4645 4 the the DT 40404 4645 5 subsidence subsidence NN 40404 4645 6 continued continue VBD 40404 4645 7 until until IN 40404 4645 8 the the DT 40404 4645 9 transgressing transgress VBG 40404 4645 10 sea sea NNP 40404 4645 11 covered cover VBD 40404 4645 12 most most JJS 40404 4645 13 of of IN 40404 4645 14 Mexico Mexico NNP 40404 4645 15 and and CC 40404 4645 16 Texas Texas NNP 40404 4645 17 and and CC 40404 4645 18 extended extend VBD 40404 4645 19 a a DT 40404 4645 20 gulf gulf NN 40404 4645 21 northward northward NN 40404 4645 22 into into IN 40404 4645 23 Kansas Kansas NNP 40404 4645 24 . . . 40404 4646 1 In in IN 40404 4646 2 its -PRON- PRP$ 40404 4646 3 warm warm JJ 40404 4646 4 and and CC 40404 4646 5 quiet quiet JJ 40404 4646 6 waters water NNS 40404 4646 7 limestones limestone VBZ 40404 4646 8 accumulated accumulate VBN 40404 4646 9 to to IN 40404 4646 10 a a DT 40404 4646 11 depth depth NN 40404 4646 12 of of IN 40404 4646 13 from from IN 40404 4646 14 one one CD 40404 4646 15 thousand thousand CD 40404 4646 16 to to TO 40404 4646 17 five five CD 40404 4646 18 thousand thousand CD 40404 4646 19 feet foot NNS 40404 4646 20 in in IN 40404 4646 21 Texas Texas NNP 40404 4646 22 , , , 40404 4646 23 and and CC 40404 4646 24 of of IN 40404 4646 25 more more JJR 40404 4646 26 than than IN 40404 4646 27 ten ten CD 40404 4646 28 thousand thousand CD 40404 4646 29 feet foot NNS 40404 4646 30 in in IN 40404 4646 31 Mexico Mexico NNP 40404 4646 32 . . . 40404 4647 1 Meanwhile meanwhile RB 40404 4647 2 the the DT 40404 4647 3 lowlands lowland NNS 40404 4647 4 , , , 40404 4647 5 where where WRB 40404 4647 6 the the DT 40404 4647 7 Great great JJ 40404 4647 8 Plains Plains NNPS 40404 4647 9 are be VBP 40404 4647 10 now now RB 40404 4647 11 , , , 40404 4647 12 received receive VBD 40404 4647 13 continental continental JJ 40404 4647 14 deposits deposit NNS 40404 4647 15 ; ; , 40404 4647 16 coal coal NN 40404 4647 17 swamps swamp NNS 40404 4647 18 stretched stretch VBD 40404 4647 19 from from IN 40404 4647 20 western western JJ 40404 4647 21 Montana Montana NNP 40404 4647 22 into into IN 40404 4647 23 British British NNP 40404 4647 24 Columbia Columbia NNP 40404 4647 25 . . . 40404 4648 1 = = NFP 40404 4648 2 The the DT 40404 4648 3 Middle Middle NNP 40404 4648 4 Cretaceous.= Cretaceous.= NNP 40404 4648 5 This this DT 40404 4648 6 was be VBD 40404 4648 7 a a DT 40404 4648 8 land land NN 40404 4648 9 epoch epoch NN 40404 4648 10 . . . 40404 4649 1 The the DT 40404 4649 2 early early JJ 40404 4649 3 Cretaceous cretaceous JJ 40404 4649 4 sea sea NN 40404 4649 5 retired retire VBD 40404 4649 6 from from IN 40404 4649 7 Texas Texas NNP 40404 4649 8 and and CC 40404 4649 9 Mexico Mexico NNP 40404 4649 10 , , , 40404 4649 11 for for IN 40404 4649 12 its -PRON- PRP$ 40404 4649 13 sediments sediment NNS 40404 4649 14 are be VBP 40404 4649 15 overlain overlain NN 40404 4649 16 unconformably unconformably RB 40404 4649 17 by by IN 40404 4649 18 formations formation NNS 40404 4649 19 of of IN 40404 4649 20 the the DT 40404 4649 21 Upper Upper NNP 40404 4649 22 Cretaceous Cretaceous NNP 40404 4649 23 . . . 40404 4650 1 So so RB 40404 4650 2 long long RB 40404 4650 3 was be VBD 40404 4650 4 the the DT 40404 4650 5 time time NN 40404 4650 6 gap gap NN 40404 4650 7 between between IN 40404 4650 8 the the DT 40404 4650 9 two two CD 40404 4650 10 series series NN 40404 4650 11 that that WDT 40404 4650 12 no no DT 40404 4650 13 species specie NNS 40404 4650 14 found find VBN 40404 4650 15 in in IN 40404 4650 16 the the DT 40404 4650 17 one one NN 40404 4650 18 occurs occur VBZ 40404 4650 19 in in IN 40404 4650 20 the the DT 40404 4650 21 other other JJ 40404 4650 22 . . . 40404 4651 1 = = NFP 40404 4651 2 The the DT 40404 4651 3 Upper Upper NNP 40404 4651 4 Cretaceous.= Cretaceous.= NNP 40404 4651 5 There there RB 40404 4651 6 now now RB 40404 4651 7 began begin VBD 40404 4651 8 one one CD 40404 4651 9 of of IN 40404 4651 10 the the DT 40404 4651 11 most most RBS 40404 4651 12 remarkable remarkable JJ 40404 4651 13 events event NNS 40404 4651 14 in in IN 40404 4651 15 all all DT 40404 4651 16 geological geological JJ 40404 4651 17 history,--the history,--the DT 40404 4651 18 great great JJ 40404 4651 19 Cretaceous cretaceous JJ 40404 4651 20 subsidence subsidence NN 40404 4651 21 . . . 40404 4652 1 Its -PRON- PRP$ 40404 4652 2 earlier early JJR 40404 4652 3 warpings warping NNS 40404 4652 4 were be VBD 40404 4652 5 recorded record VBN 40404 4652 6 in in IN 40404 4652 7 continental continental JJ 40404 4652 8 deposits,--wide deposits,--wide NNP 40404 4652 9 sheets sheet NNS 40404 4652 10 of of IN 40404 4652 11 sandstone sandstone NN 40404 4652 12 , , , 40404 4652 13 shale shale NNP 40404 4652 14 , , , 40404 4652 15 and and CC 40404 4652 16 some some DT 40404 4652 17 coal,--which coal,--which NNP 40404 4652 18 were be VBD 40404 4652 19 spread spread VBN 40404 4652 20 from from IN 40404 4652 21 Texas Texas NNP 40404 4652 22 to to IN 40404 4652 23 British British NNP 40404 4652 24 Columbia Columbia NNP 40404 4652 25 . . . 40404 4653 1 These these DT 40404 4653 2 continental continental JJ 40404 4653 3 deposits deposit NNS 40404 4653 4 are be VBP 40404 4653 5 overlain overlain NN 40404 4653 6 by by IN 40404 4653 7 a a DT 40404 4653 8 succession succession NN 40404 4653 9 of of IN 40404 4653 10 marine marine JJ 40404 4653 11 formations formation NNS 40404 4653 12 whose whose WP$ 40404 4653 13 vast vast JJ 40404 4653 14 area area NN 40404 4653 15 is be VBZ 40404 4653 16 shown show VBN 40404 4653 17 on on IN 40404 4653 18 the the DT 40404 4653 19 map map NN 40404 4653 20 , , , 40404 4653 21 Figure Figure NNP 40404 4653 22 260 260 CD 40404 4653 23 . . . 40404 4654 1 We -PRON- PRP 40404 4654 2 may may MD 40404 4654 3 infer infer VB 40404 4654 4 that that IN 40404 4654 5 as as IN 40404 4654 6 the the DT 40404 4654 7 depression depression NN 40404 4654 8 of of IN 40404 4654 9 the the DT 40404 4654 10 continent continent NN 40404 4654 11 continued continue VBD 40404 4654 12 the the DT 40404 4654 13 sea sea NN 40404 4654 14 came come VBD 40404 4654 15 in in RP 40404 4654 16 far far RB 40404 4654 17 and and CC 40404 4654 18 wide wide RB 40404 4654 19 over over IN 40404 4654 20 the the DT 40404 4654 21 coast coast NN 40404 4654 22 lands land NNS 40404 4654 23 and and CC 40404 4654 24 the the DT 40404 4654 25 plains plain NNS 40404 4654 26 worn wear VBN 40404 4654 27 low low JJ 40404 4654 28 during during IN 40404 4654 29 the the DT 40404 4654 30 previous previous JJ 40404 4654 31 epochs epoch NNS 40404 4654 32 . . . 40404 4655 1 Upper upper JJ 40404 4655 2 Cretaceous cretaceous JJ 40404 4655 3 formations formation NNS 40404 4655 4 show show VBP 40404 4655 5 that that IN 40404 4655 6 south south NN 40404 4655 7 of of IN 40404 4655 8 New New NNP 40404 4655 9 England England NNP 40404 4655 10 the the DT 40404 4655 11 waters water NNS 40404 4655 12 of of IN 40404 4655 13 the the DT 40404 4655 14 Atlantic Atlantic NNP 40404 4655 15 somewhat somewhat RB 40404 4655 16 overlapped overlap VBD 40404 4655 17 the the DT 40404 4655 18 crystalline crystalline NN 40404 4655 19 rocks rock NNS 40404 4655 20 of of IN 40404 4655 21 the the DT 40404 4655 22 Piedmont Piedmont NNP 40404 4655 23 Belt Belt NNP 40404 4655 24 and and CC 40404 4655 25 spread spread VBD 40404 4655 26 their -PRON- PRP$ 40404 4655 27 waste waste NN 40404 4655 28 over over IN 40404 4655 29 the the DT 40404 4655 30 submerged submerge VBN 40404 4655 31 coastal coastal JJ 40404 4655 32 plain plain NN 40404 4655 33 . . . 40404 4656 1 The the DT 40404 4656 2 Gulf Gulf NNP 40404 4656 3 of of IN 40404 4656 4 Mexico Mexico NNP 40404 4656 5 again again RB 40404 4656 6 covered cover VBD 40404 4656 7 the the DT 40404 4656 8 Mississippi Mississippi NNP 40404 4656 9 embayment embayment NN 40404 4656 10 , , , 40404 4656 11 reaching reach VBG 40404 4656 12 as as IN 40404 4656 13 far far RB 40404 4656 14 north north RB 40404 4656 15 as as IN 40404 4656 16 southern southern JJ 40404 4656 17 Illinois Illinois NNP 40404 4656 18 , , , 40404 4656 19 and and CC 40404 4656 20 extended extend VBD 40404 4656 21 over over IN 40404 4656 22 Texas Texas NNP 40404 4656 23 . . . 40404 4657 1 A a DT 40404 4657 2 mediterranean mediterranean JJ 40404 4657 3 sea sea NN 40404 4657 4 now now RB 40404 4657 5 stretched stretch VBN 40404 4657 6 from from IN 40404 4657 7 the the DT 40404 4657 8 Gulf Gulf NNP 40404 4657 9 to to IN 40404 4657 10 the the DT 40404 4657 11 arctic arctic JJ 40404 4657 12 regions region NNS 40404 4657 13 and and CC 40404 4657 14 from from IN 40404 4657 15 central central JJ 40404 4657 16 Iowa Iowa NNP 40404 4657 17 to to IN 40404 4657 18 the the DT 40404 4657 19 eastern eastern JJ 40404 4657 20 shore shore NN 40404 4657 21 of of IN 40404 4657 22 the the DT 40404 4657 23 Great Great NNP 40404 4657 24 Basin Basin NNP 40404 4657 25 land land NN 40404 4657 26 at at IN 40404 4657 27 about about IN 40404 4657 28 the the DT 40404 4657 29 longitude longitude NN 40404 4657 30 of of IN 40404 4657 31 Salt Salt NNP 40404 4657 32 Lake Lake NNP 40404 4657 33 City City NNP 40404 4657 34 , , , 40404 4657 35 the the DT 40404 4657 36 Colorado Colorado NNP 40404 4657 37 Mountains Mountains NNPS 40404 4657 38 rising rise VBG 40404 4657 39 from from IN 40404 4657 40 it -PRON- PRP 40404 4657 41 in in IN 40404 4657 42 a a DT 40404 4657 43 chain chain NN 40404 4657 44 of of IN 40404 4657 45 islands island NNS 40404 4657 46 . . . 40404 4658 1 Along along IN 40404 4658 2 with with IN 40404 4658 3 minor minor JJ 40404 4658 4 oscillations oscillation NNS 40404 4658 5 there there EX 40404 4658 6 were be VBD 40404 4658 7 laid lay VBN 40404 4658 8 in in IN 40404 4658 9 the the DT 40404 4658 10 interior interior NNP 40404 4658 11 sea sea NN 40404 4658 12 various various JJ 40404 4658 13 formations formation NNS 40404 4658 14 of of IN 40404 4658 15 sandstones sandstone NNS 40404 4658 16 , , , 40404 4658 17 shales shale NNS 40404 4658 18 , , , 40404 4658 19 and and CC 40404 4658 20 limestones limestone NNS 40404 4658 21 , , , 40404 4658 22 and and CC 40404 4658 23 from from IN 40404 4658 24 Kansas Kansas NNP 40404 4658 25 to to IN 40404 4658 26 South South NNP 40404 4658 27 Dakota Dakota NNP 40404 4658 28 beds bed NNS 40404 4658 29 of of IN 40404 4658 30 white white JJ 40404 4658 31 chalk chalk JJ 40404 4658 32 show show NN 40404 4658 33 that that IN 40404 4658 34 the the DT 40404 4658 35 clear clear JJ 40404 4658 36 , , , 40404 4658 37 warm warm JJ 40404 4658 38 waters water NNS 40404 4658 39 swarmed swarm VBN 40404 4658 40 at at IN 40404 4658 41 times time NNS 40404 4658 42 with with IN 40404 4658 43 foraminiferal foraminiferal JJ 40404 4658 44 life life NN 40404 4658 45 whose whose WP$ 40404 4658 46 disintegrating disintegrate VBG 40404 4658 47 microscopic microscopic JJ 40404 4658 48 shells shell NNS 40404 4658 49 accumulated accumulate VBN 40404 4658 50 in in IN 40404 4658 51 this this DT 40404 4658 52 rare rare JJ 40404 4658 53 deposit deposit NN 40404 4658 54 . . . 40404 4659 1 [ [ -LRB- 40404 4659 2 Illustration illustration NN 40404 4659 3 : : : 40404 4659 4 Fig Fig NNP 40404 4659 5 . . . 40404 4660 1 316 316 CD 40404 4660 2 . . . 40404 4661 1 Hypothetical hypothetical JJ 40404 4661 2 Map Map NNP 40404 4661 3 of of IN 40404 4661 4 Upper Upper NNP 40404 4661 5 Cretaceous Cretaceous NNP 40404 4661 6 Epicontinental Epicontinental NNP 40404 4661 7 Seas Seas NNPS 40404 4661 8 Shaded shade VBD 40404 4661 9 areas area NNS 40404 4661 10 , , , 40404 4661 11 probable probable JJ 40404 4661 12 seas sea NNS 40404 4661 13 ; ; : 40404 4661 14 broken broken JJ 40404 4661 15 lines line NNS 40404 4661 16 , , , 40404 4661 17 approximate approximate JJ 40404 4661 18 shore shore NN 40404 4661 19 lines line NNS 40404 4661 20 ] ] -RRB- 40404 4661 21 [ [ -LRB- 40404 4661 22 Illustration illustration NN 40404 4661 23 : : : 40404 4661 24 Fig Fig NNP 40404 4661 25 . . . 40404 4662 1 317 317 CD 40404 4662 2 . . . 40404 4663 1 Foraminifera Foraminifera NNP 40404 4663 2 from from IN 40404 4663 3 Cretaceous Cretaceous NNP 40404 4663 4 Chalk Chalk NNP 40404 4663 5 , , , 40404 4663 6 Iowa Iowa NNP 40404 4663 7 ] ] -RRB- 40404 4663 8 At at IN 40404 4663 9 this this DT 40404 4663 10 epoch epoch NN 40404 4663 11 a a DT 40404 4663 12 wide wide JJ 40404 4663 13 sea sea NN 40404 4663 14 , , , 40404 4663 15 interrupted interrupt VBN 40404 4663 16 by by IN 40404 4663 17 various various JJ 40404 4663 18 islands island NNS 40404 4663 19 , , , 40404 4663 20 stretched stretch VBN 40404 4663 21 across across IN 40404 4663 22 Eurasia Eurasia NNP 40404 4663 23 from from IN 40404 4663 24 Wales Wales NNP 40404 4663 25 and and CC 40404 4663 26 western western JJ 40404 4663 27 Spain Spain NNP 40404 4663 28 to to IN 40404 4663 29 China China NNP 40404 4663 30 , , , 40404 4663 31 and and CC 40404 4663 32 spread spread VBD 40404 4663 33 southward southward RB 40404 4663 34 over over IN 40404 4663 35 much much JJ 40404 4663 36 of of IN 40404 4663 37 the the DT 40404 4663 38 Sahara Sahara NNP 40404 4663 39 . . . 40404 4664 1 To to IN 40404 4664 2 the the DT 40404 4664 3 west west JJ 40404 4664 4 its -PRON- PRP$ 40404 4664 5 waters water NNS 40404 4664 6 were be VBD 40404 4664 7 clear clear JJ 40404 4664 8 and and CC 40404 4664 9 on on IN 40404 4664 10 its -PRON- PRP$ 40404 4664 11 floor floor NN 40404 4664 12 the the DT 40404 4664 13 crumbled crumble VBN 40404 4664 14 remains remain NNS 40404 4664 15 of of IN 40404 4664 16 foraminifers foraminifer NNS 40404 4664 17 gathered gather VBN 40404 4664 18 in in IN 40404 4664 19 heavy heavy JJ 40404 4664 20 accumulations accumulation NNS 40404 4664 21 of of IN 40404 4664 22 calcareous calcareous JJ 40404 4664 23 ooze,--the ooze,--the DT 40404 4664 24 white white JJ 40404 4664 25 chalk chalk NN 40404 4664 26 of of IN 40404 4664 27 France France NNP 40404 4664 28 and and CC 40404 4664 29 England England NNP 40404 4664 30 . . . 40404 4665 1 Sea sea NN 40404 4665 2 urchins urchin NNS 40404 4665 3 were be VBD 40404 4665 4 also also RB 40404 4665 5 abundant abundant JJ 40404 4665 6 , , , 40404 4665 7 and and CC 40404 4665 8 sponges sponge NNS 40404 4665 9 contributed contribute VBD 40404 4665 10 their -PRON- PRP$ 40404 4665 11 spicules spicule NNS 40404 4665 12 to to TO 40404 4665 13 form form VB 40404 4665 14 nodules nodule NNS 40404 4665 15 of of IN 40404 4665 16 flint flint NN 40404 4665 17 . . . 40404 4666 1 = = NFP 40404 4666 2 The the DT 40404 4666 3 Laramie.= laramie.= NN 40404 4666 4 The the DT 40404 4666 5 closing closing NN 40404 4666 6 stage stage NN 40404 4666 7 of of IN 40404 4666 8 the the DT 40404 4666 9 Cretaceous Cretaceous NNP 40404 4666 10 was be VBD 40404 4666 11 marked mark VBN 40404 4666 12 in in IN 40404 4666 13 North North NNP 40404 4666 14 America America NNP 40404 4666 15 by by IN 40404 4666 16 a a DT 40404 4666 17 slow slow JJ 40404 4666 18 uplift uplift NN 40404 4666 19 of of IN 40404 4666 20 the the DT 40404 4666 21 land land NN 40404 4666 22 . . . 40404 4667 1 As as IN 40404 4667 2 the the DT 40404 4667 3 interior interior NNP 40404 4667 4 sea sea NN 40404 4667 5 gradually gradually RB 40404 4667 6 withdrew withdraw VBD 40404 4667 7 , , , 40404 4667 8 the the DT 40404 4667 9 warping warp VBG 40404 4667 10 basins basin NNS 40404 4667 11 of of IN 40404 4667 12 its -PRON- PRP$ 40404 4667 13 floor floor NN 40404 4667 14 were be VBD 40404 4667 15 filled fill VBN 40404 4667 16 with with IN 40404 4667 17 waste waste NN 40404 4667 18 from from IN 40404 4667 19 the the DT 40404 4667 20 rising rise VBG 40404 4667 21 lands land NNS 40404 4667 22 about about IN 40404 4667 23 them -PRON- PRP 40404 4667 24 , , , 40404 4667 25 and and CC 40404 4667 26 over over IN 40404 4667 27 this this DT 40404 4667 28 wide wide JJ 40404 4667 29 area area NN 40404 4667 30 there there EX 40404 4667 31 were be VBD 40404 4667 32 spread spread VBN 40404 4667 33 continental continental JJ 40404 4667 34 deposits deposit NNS 40404 4667 35 in in IN 40404 4667 36 fresh fresh JJ 40404 4667 37 - - HYPH 40404 4667 38 water water NN 40404 4667 39 lakes lake NNS 40404 4667 40 like like IN 40404 4667 41 the the DT 40404 4667 42 Great Great NNP 40404 4667 43 Lakes Lakes NNPS 40404 4667 44 of of IN 40404 4667 45 the the DT 40404 4667 46 present present NN 40404 4667 47 , , , 40404 4667 48 in in IN 40404 4667 49 brackish brackish JJ 40404 4667 50 estuaries estuary NNS 40404 4667 51 , , , 40404 4667 52 and and CC 40404 4667 53 in in IN 40404 4667 54 river river NN 40404 4667 55 plains plain NNS 40404 4667 56 , , , 40404 4667 57 while while IN 40404 4667 58 occasional occasional JJ 40404 4667 59 oscillations oscillation NNS 40404 4667 60 now now RB 40404 4667 61 and and CC 40404 4667 62 again again RB 40404 4667 63 let let VB 40404 4667 64 in in IN 40404 4667 65 the the DT 40404 4667 66 sea sea NN 40404 4667 67 . . . 40404 4668 1 There there EX 40404 4668 2 were be VBD 40404 4668 3 vast vast JJ 40404 4668 4 marshes marsh NNS 40404 4668 5 in in IN 40404 4668 6 which which WDT 40404 4668 7 there there RB 40404 4668 8 accumulated accumulate VBD 40404 4668 9 the the DT 40404 4668 10 larger large JJR 40404 4668 11 part part NN 40404 4668 12 of of IN 40404 4668 13 the the DT 40404 4668 14 valuable valuable JJ 40404 4668 15 coal coal NN 40404 4668 16 seams seam NNS 40404 4668 17 of of IN 40404 4668 18 the the DT 40404 4668 19 West West NNP 40404 4668 20 . . . 40404 4669 1 The the DT 40404 4669 2 Laramie Laramie NNP 40404 4669 3 is be VBZ 40404 4669 4 the the DT 40404 4669 5 coal coal NN 40404 4669 6 - - HYPH 40404 4669 7 bearing bear VBG 40404 4669 8 series series NN 40404 4669 9 of of IN 40404 4669 10 the the DT 40404 4669 11 West West NNP 40404 4669 12 , , , 40404 4669 13 as as IN 40404 4669 14 the the DT 40404 4669 15 Pennsylvanian Pennsylvanian NNP 40404 4669 16 is be VBZ 40404 4669 17 of of IN 40404 4669 18 the the DT 40404 4669 19 eastern eastern JJ 40404 4669 20 part part NN 40404 4669 21 of of IN 40404 4669 22 our -PRON- PRP$ 40404 4669 23 country country NN 40404 4669 24 . . . 40404 4670 1 = = NFP 40404 4670 2 The the DT 40404 4670 3 Rocky Rocky NNP 40404 4670 4 Mountain Mountain NNP 40404 4670 5 deformation.= deformation.= CD 40404 4670 6 At at IN 40404 4670 7 the the DT 40404 4670 8 close close NN 40404 4670 9 of of IN 40404 4670 10 the the DT 40404 4670 11 Cretaceous Cretaceous NNP 40404 4670 12 we -PRON- PRP 40404 4670 13 enter enter VBP 40404 4670 14 upon upon IN 40404 4670 15 an an DT 40404 4670 16 epoch epoch NN 40404 4670 17 of of IN 40404 4670 18 mountain mountain NN 40404 4670 19 - - HYPH 40404 4670 20 making make VBG 40404 4670 21 far far RB 40404 4670 22 more more RBR 40404 4670 23 extensive extensive JJ 40404 4670 24 than than IN 40404 4670 25 any any DT 40404 4670 26 which which WDT 40404 4670 27 the the DT 40404 4670 28 continent continent NN 40404 4670 29 had have VBD 40404 4670 30 witnessed witness VBN 40404 4670 31 . . . 40404 4671 1 The the DT 40404 4671 2 long long JJ 40404 4671 3 belt belt NN 40404 4671 4 lying lie VBG 40404 4671 5 west west NN 40404 4671 6 of of IN 40404 4671 7 the the DT 40404 4671 8 ancient ancient JJ 40404 4671 9 axes axis NNS 40404 4671 10 of of IN 40404 4671 11 the the DT 40404 4671 12 Colorado Colorado NNP 40404 4671 13 Islands Islands NNPS 40404 4671 14 and and CC 40404 4671 15 east east NN 40404 4671 16 of of IN 40404 4671 17 the the DT 40404 4671 18 Great Great NNP 40404 4671 19 Basin Basin NNP 40404 4671 20 land land NN 40404 4671 21 had have VBD 40404 4671 22 been be VBN 40404 4671 23 an an DT 40404 4671 24 area area NN 40404 4671 25 of of IN 40404 4671 26 deposition deposition NN 40404 4671 27 for for IN 40404 4671 28 many many JJ 40404 4671 29 ages age NNS 40404 4671 30 , , , 40404 4671 31 and and CC 40404 4671 32 in in IN 40404 4671 33 its -PRON- PRP$ 40404 4671 34 subsiding subsiding JJ 40404 4671 35 troughs troughs NNP 40404 4671 36 Paleozoic Paleozoic NNP 40404 4671 37 and and CC 40404 4671 38 Mesozoic Mesozoic NNP 40404 4671 39 sediments sediment NNS 40404 4671 40 had have VBD 40404 4671 41 gathered gather VBN 40404 4671 42 to to IN 40404 4671 43 the the DT 40404 4671 44 depth depth NN 40404 4671 45 of of IN 40404 4671 46 many many JJ 40404 4671 47 thousand thousand CD 40404 4671 48 feet foot NNS 40404 4671 49 . . . 40404 4672 1 And and CC 40404 4672 2 now now RB 40404 4672 3 from from IN 40404 4672 4 Mexico Mexico NNP 40404 4672 5 well well RB 40404 4672 6 - - HYPH 40404 4672 7 nigh nigh NN 40404 4672 8 to to IN 40404 4672 9 the the DT 40404 4672 10 Arctic Arctic NNP 40404 4672 11 Ocean Ocean NNP 40404 4672 12 this this DT 40404 4672 13 belt belt NN 40404 4672 14 yielded yield VBD 40404 4672 15 to to IN 40404 4672 16 lateral lateral JJ 40404 4672 17 pressure pressure NN 40404 4672 18 . . . 40404 4673 1 The the DT 40404 4673 2 Cretaceous cretaceous JJ 40404 4673 3 limestones limestone NNS 40404 4673 4 of of IN 40404 4673 5 Mexico Mexico NNP 40404 4673 6 were be VBD 40404 4673 7 folded fold VBN 40404 4673 8 into into IN 40404 4673 9 lofty lofty JJ 40404 4673 10 mountains mountain NNS 40404 4673 11 . . . 40404 4674 1 A a DT 40404 4674 2 massive massive JJ 40404 4674 3 range range NN 40404 4674 4 was be VBD 40404 4674 5 upfolded upfolde VBN 40404 4674 6 where where WRB 40404 4674 7 the the DT 40404 4674 8 Wasatch Wasatch NNP 40404 4674 9 Mountains Mountains NNPS 40404 4674 10 now now RB 40404 4674 11 are be VBP 40404 4674 12 , , , 40404 4674 13 and and CC 40404 4674 14 various various JJ 40404 4674 15 ranges range NNS 40404 4674 16 of of IN 40404 4674 17 the the DT 40404 4674 18 Rockies Rockies NNPS 40404 4674 19 in in IN 40404 4674 20 Colorado Colorado NNP 40404 4674 21 and and CC 40404 4674 22 other other JJ 40404 4674 23 states state NNS 40404 4674 24 were be VBD 40404 4674 25 upridged upridge VBN 40404 4674 26 . . . 40404 4675 1 However however WRB 40404 4675 2 slowly slowly RB 40404 4675 3 these these DT 40404 4675 4 deformations deformation NNS 40404 4675 5 were be VBD 40404 4675 6 effected effect VBN 40404 4675 7 they -PRON- PRP 40404 4675 8 were be VBD 40404 4675 9 no no RB 40404 4675 10 doubt doubt RB 40404 4675 11 accompanied accompany VBN 40404 4675 12 by by IN 40404 4675 13 world world NN 40404 4675 14 - - HYPH 40404 4675 15 shaking shake VBG 40404 4675 16 earthquakes earthquake NNS 40404 4675 17 , , , 40404 4675 18 and and CC 40404 4675 19 it -PRON- PRP 40404 4675 20 is be VBZ 40404 4675 21 known know VBN 40404 4675 22 that that IN 40404 4675 23 volcanic volcanic JJ 40404 4675 24 eruptions eruption NNS 40404 4675 25 took take VBD 40404 4675 26 place place NN 40404 4675 27 on on IN 40404 4675 28 a a DT 40404 4675 29 magnificent magnificent JJ 40404 4675 30 scale scale NN 40404 4675 31 . . . 40404 4676 1 Outflows outflow NNS 40404 4676 2 of of IN 40404 4676 3 lava lava NN 40404 4676 4 occurred occur VBD 40404 4676 5 along along IN 40404 4676 6 the the DT 40404 4676 7 Wasatch Wasatch NNP 40404 4676 8 , , , 40404 4676 9 the the DT 40404 4676 10 laccoliths laccolith NNS 40404 4676 11 of of IN 40404 4676 12 the the DT 40404 4676 13 Henry Henry NNP 40404 4676 14 Mountains Mountains NNPS 40404 4676 15 ( ( -LRB- 40404 4676 16 p. p. NN 40404 4676 17 271 271 CD 40404 4676 18 ) ) -RRB- 40404 4676 19 were be VBD 40404 4676 20 formed form VBN 40404 4676 21 , , , 40404 4676 22 while while IN 40404 4676 23 the the DT 40404 4676 24 great great JJ 40404 4676 25 masses masse NNS 40404 4676 26 of of IN 40404 4676 27 igneous igneous JJ 40404 4676 28 rock rock NN 40404 4676 29 which which WDT 40404 4676 30 constitute constitute VBP 40404 4676 31 the the DT 40404 4676 32 cores core NNS 40404 4676 33 of of IN 40404 4676 34 the the DT 40404 4676 35 Spanish Spanish NNP 40404 4676 36 Peaks Peaks NNP 40404 4676 37 ( ( -LRB- 40404 4676 38 p. p. NN 40404 4676 39 271 271 CD 40404 4676 40 ) ) -RRB- 40404 4676 41 and and CC 40404 4676 42 other other JJ 40404 4676 43 western western JJ 40404 4676 44 mountains mountain NNS 40404 4676 45 were be VBD 40404 4676 46 thrust thrust VBN 40404 4676 47 up up RP 40404 4676 48 amid amid IN 40404 4676 49 the the DT 40404 4676 50 strata strata NN 40404 4676 51 . . . 40404 4677 1 The the DT 40404 4677 2 high high JJ 40404 4677 3 plateaus plateaus NN 40404 4677 4 from from IN 40404 4677 5 which which WDT 40404 4677 6 many many JJ 40404 4677 7 of of IN 40404 4677 8 these these DT 40404 4677 9 ranges range NNS 40404 4677 10 rise rise VBP 40404 4677 11 had have VBD 40404 4677 12 not not RB 40404 4677 13 yet yet RB 40404 4677 14 been be VBN 40404 4677 15 uplifted uplift VBN 40404 4677 16 , , , 40404 4677 17 and and CC 40404 4677 18 the the DT 40404 4677 19 bases basis NNS 40404 4677 20 of of IN 40404 4677 21 the the DT 40404 4677 22 mountains mountain NNS 40404 4677 23 probably probably RB 40404 4677 24 stood stand VBD 40404 4677 25 near near IN 40404 4677 26 the the DT 40404 4677 27 level level NN 40404 4677 28 of of IN 40404 4677 29 the the DT 40404 4677 30 sea sea NN 40404 4677 31 . . . 40404 4678 1 North North NNP 40404 4678 2 America America NNP 40404 4678 3 was be VBD 40404 4678 4 now now RB 40404 4678 5 well well JJ 40404 4678 6 - - HYPH 40404 4678 7 nigh nigh NN 40404 4678 8 completed complete VBN 40404 4678 9 . . . 40404 4679 1 The the DT 40404 4679 2 mediterranean mediterranean JJ 40404 4679 3 seas sea NNS 40404 4679 4 which which WDT 40404 4679 5 so so RB 40404 4679 6 often often RB 40404 4679 7 had have VBD 40404 4679 8 occupied occupy VBN 40404 4679 9 the the DT 40404 4679 10 heart heart NN 40404 4679 11 of of IN 40404 4679 12 the the DT 40404 4679 13 land land NN 40404 4679 14 were be VBD 40404 4679 15 done do VBN 40404 4679 16 away away RB 40404 4679 17 with with IN 40404 4679 18 , , , 40404 4679 19 and and CC 40404 4679 20 the the DT 40404 4679 21 continent continent NN 40404 4679 22 stretched stretch VBN 40404 4679 23 unbroken unbroken JJ 40404 4679 24 from from IN 40404 4679 25 the the DT 40404 4679 26 foot foot NN 40404 4679 27 of of IN 40404 4679 28 the the DT 40404 4679 29 Sierras Sierras NNPS 40404 4679 30 on on IN 40404 4679 31 the the DT 40404 4679 32 west west NN 40404 4679 33 to to IN 40404 4679 34 the the DT 40404 4679 35 Fall Fall NNP 40404 4679 36 Line Line NNP 40404 4679 37 of of IN 40404 4679 38 the the DT 40404 4679 39 Atlantic Atlantic NNP 40404 4679 40 coastal coastal JJ 40404 4679 41 plain plain NN 40404 4679 42 on on IN 40404 4679 43 the the DT 40404 4679 44 east east NN 40404 4679 45 . . . 40404 4680 1 = = NFP 40404 4680 2 The the DT 40404 4680 3 Mesozoic Mesozoic NNP 40404 4680 4 peneplain.= peneplain.= CD 40404 4680 5 The the DT 40404 4680 6 immense immense JJ 40404 4680 7 thickness thickness NN 40404 4680 8 of of IN 40404 4680 9 the the DT 40404 4680 10 Mesozoic mesozoic JJ 40404 4680 11 formations formation NNS 40404 4680 12 conveys convey VBZ 40404 4680 13 to to IN 40404 4680 14 our -PRON- PRP$ 40404 4680 15 minds mind NNS 40404 4680 16 some some DT 40404 4680 17 idea idea NN 40404 4680 18 of of IN 40404 4680 19 the the DT 40404 4680 20 vast vast JJ 40404 4680 21 length length NN 40404 4680 22 of of IN 40404 4680 23 time time NN 40404 4680 24 involved involve VBN 40404 4680 25 in in IN 40404 4680 26 the the DT 40404 4680 27 slow slow JJ 40404 4680 28 progress progress NN 40404 4680 29 of of IN 40404 4680 30 its -PRON- PRP$ 40404 4680 31 successive successive JJ 40404 4680 32 ages age NNS 40404 4680 33 . . . 40404 4681 1 The the DT 40404 4681 2 same same JJ 40404 4681 3 lesson lesson NN 40404 4681 4 is be VBZ 40404 4681 5 taught teach VBN 40404 4681 6 as as RB 40404 4681 7 plainly plainly RB 40404 4681 8 by by IN 40404 4681 9 the the DT 40404 4681 10 amount amount NN 40404 4681 11 of of IN 40404 4681 12 denudation denudation NN 40404 4681 13 which which WDT 40404 4681 14 the the DT 40404 4681 15 lands land NNS 40404 4681 16 suffered suffer VBD 40404 4681 17 during during IN 40404 4681 18 the the DT 40404 4681 19 era era NN 40404 4681 20 . . . 40404 4682 1 The the DT 40404 4682 2 beginning beginning NN 40404 4682 3 of of IN 40404 4682 4 the the DT 40404 4682 5 Mesozoic Mesozoic NNP 40404 4682 6 saw see VBD 40404 4682 7 a a DT 40404 4682 8 system system NN 40404 4682 9 of of IN 40404 4682 10 lofty lofty JJ 40404 4682 11 mountain mountain NN 40404 4682 12 ranges range NNS 40404 4682 13 stretching stretch VBG 40404 4682 14 from from IN 40404 4682 15 New New NNP 40404 4682 16 York York NNP 40404 4682 17 into into IN 40404 4682 18 central central JJ 40404 4682 19 Alabama Alabama NNP 40404 4682 20 . . . 40404 4683 1 The the DT 40404 4683 2 end end NN 40404 4683 3 of of IN 40404 4683 4 this this DT 40404 4683 5 long long JJ 40404 4683 6 era era NN 40404 4683 7 found find VBD 40404 4683 8 here here RB 40404 4683 9 a a DT 40404 4683 10 wide wide JJ 40404 4683 11 peneplain peneplain NN 40404 4683 12 crossed cross VBN 40404 4683 13 by by IN 40404 4683 14 sluggish sluggish JJ 40404 4683 15 wandering wandering NN 40404 4683 16 rivers river NNS 40404 4683 17 and and CC 40404 4683 18 overlooked overlook VBN 40404 4683 19 by by IN 40404 4683 20 detached detached JJ 40404 4683 21 hills hill NNS 40404 4683 22 as as IN 40404 4683 23 yet yet RB 40404 4683 24 unreduced unreduced JJ 40404 4683 25 to to IN 40404 4683 26 the the DT 40404 4683 27 general general JJ 40404 4683 28 level level NN 40404 4683 29 . . . 40404 4684 1 The the DT 40404 4684 2 Mesozoic Mesozoic NNP 40404 4684 3 era era NN 40404 4684 4 was be VBD 40404 4684 5 long long JJ 40404 4684 6 enough enough RB 40404 4684 7 for for IN 40404 4684 8 the the DT 40404 4684 9 Appalachian Appalachian NNP 40404 4684 10 Mountains Mountains NNPS 40404 4684 11 , , , 40404 4684 12 upridged upridge VBD 40404 4684 13 at at IN 40404 4684 14 its -PRON- PRP$ 40404 4684 15 beginning beginning NN 40404 4684 16 , , , 40404 4684 17 to to TO 40404 4684 18 have have VB 40404 4684 19 been be VBN 40404 4684 20 weathered weather VBN 40404 4684 21 and and CC 40404 4684 22 worn wear VBN 40404 4684 23 away away RP 40404 4684 24 and and CC 40404 4684 25 carried carry VBN 40404 4684 26 grain grain NN 40404 4684 27 by by IN 40404 4684 28 grain grain NN 40404 4684 29 to to IN 40404 4684 30 the the DT 40404 4684 31 sea sea NN 40404 4684 32 . . . 40404 4685 1 The the DT 40404 4685 2 same same JJ 40404 4685 3 plain plain NN 40404 4685 4 extended extend VBN 40404 4685 5 over over IN 40404 4685 6 southern southern JJ 40404 4685 7 New New NNP 40404 4685 8 England England NNP 40404 4685 9 . . . 40404 4686 1 The the DT 40404 4686 2 Taconic taconic JJ 40404 4686 3 range range NN 40404 4686 4 , , , 40404 4686 5 uplifted uplift VBN 40404 4686 6 partially partially RB 40404 4686 7 at at IN 40404 4686 8 least least JJS 40404 4686 9 at at IN 40404 4686 10 the the DT 40404 4686 11 close close NN 40404 4686 12 of of IN 40404 4686 13 the the DT 40404 4686 14 Ordovician Ordovician NNP 40404 4686 15 , , , 40404 4686 16 and and CC 40404 4686 17 the the DT 40404 4686 18 block block NN 40404 4686 19 mountains mountain NNS 40404 4686 20 of of IN 40404 4686 21 the the DT 40404 4686 22 Triassic Triassic NNP 40404 4686 23 , , , 40404 4686 24 together together RB 40404 4686 25 with with IN 40404 4686 26 the the DT 40404 4686 27 pre pre JJ 40404 4686 28 - - JJ 40404 4686 29 Cambrian cambrian JJ 40404 4686 30 mountains mountain NNS 40404 4686 31 of of IN 40404 4686 32 ancient ancient JJ 40404 4686 33 Appalachia Appalachia NNP 40404 4686 34 , , , 40404 4686 35 had have VBD 40404 4686 36 now now RB 40404 4686 37 all all DT 40404 4686 38 been be VBN 40404 4686 39 worn worn JJ 40404 4686 40 to to IN 40404 4686 41 a a DT 40404 4686 42 common common JJ 40404 4686 43 level level NN 40404 4686 44 with with IN 40404 4686 45 the the DT 40404 4686 46 Allegheny Allegheny NNP 40404 4686 47 ranges range NNS 40404 4686 48 . . . 40404 4687 1 The the DT 40404 4687 2 Mesozoic Mesozoic NNP 40404 4687 3 peneplain peneplain NN 40404 4687 4 has have VBZ 40404 4687 5 been be VBN 40404 4687 6 upwarped upwarpe VBN 40404 4687 7 by by IN 40404 4687 8 later later RB 40404 4687 9 crustal crustal JJ 40404 4687 10 movements movement NNS 40404 4687 11 and and CC 40404 4687 12 has have VBZ 40404 4687 13 suffered suffer VBN 40404 4687 14 profound profound JJ 40404 4687 15 erosion erosion NN 40404 4687 16 , , , 40404 4687 17 but but CC 40404 4687 18 the the DT 40404 4687 19 remnants remnant NNS 40404 4687 20 of of IN 40404 4687 21 it -PRON- PRP 40404 4687 22 which which WDT 40404 4687 23 remain remain VBP 40404 4687 24 on on IN 40404 4687 25 the the DT 40404 4687 26 upland upland NN 40404 4687 27 of of IN 40404 4687 28 southern southern JJ 40404 4687 29 New New NNP 40404 4687 30 England England NNP 40404 4687 31 and and CC 40404 4687 32 the the DT 40404 4687 33 even even JJ 40404 4687 34 summits summit NNS 40404 4687 35 of of IN 40404 4687 36 the the DT 40404 4687 37 Allegheny Allegheny NNP 40404 4687 38 ridges ridge NNS 40404 4687 39 suffice suffice VBP 40404 4687 40 to to TO 40404 4687 41 prove prove VB 40404 4687 42 that that IN 40404 4687 43 it -PRON- PRP 40404 4687 44 once once RB 40404 4687 45 existed exist VBD 40404 4687 46 . . . 40404 4688 1 The the DT 40404 4688 2 age age NN 40404 4688 3 of of IN 40404 4688 4 the the DT 40404 4688 5 Mesozoic Mesozoic NNP 40404 4688 6 peneplain peneplain NN 40404 4688 7 is be VBZ 40404 4688 8 determined determine VBN 40404 4688 9 from from IN 40404 4688 10 the the DT 40404 4688 11 fact fact NN 40404 4688 12 that that IN 40404 4688 13 the the DT 40404 4688 14 lower low JJR 40404 4688 15 Tertiary tertiary JJ 40404 4688 16 sediments sediment NNS 40404 4688 17 were be VBD 40404 4688 18 deposited deposit VBN 40404 4688 19 on on IN 40404 4688 20 its -PRON- PRP$ 40404 4688 21 even even JJ 40404 4688 22 surface surface NN 40404 4688 23 when when WRB 40404 4688 24 at at IN 40404 4688 25 the the DT 40404 4688 26 close close NN 40404 4688 27 of of IN 40404 4688 28 the the DT 40404 4688 29 era era NN 40404 4688 30 the the DT 40404 4688 31 peneplain peneplain NN 40404 4688 32 was be VBD 40404 4688 33 depressed depressed JJ 40404 4688 34 along along IN 40404 4688 35 its -PRON- PRP$ 40404 4688 36 edges edge NNS 40404 4688 37 beneath beneath IN 40404 4688 38 the the DT 40404 4688 39 sea sea NN 40404 4688 40 . . . 40404 4689 1 Life life NN 40404 4689 2 of of IN 40404 4689 3 the the DT 40404 4689 4 Mesozoic Mesozoic NNP 40404 4689 5 = = SYM 40404 4689 6 Plant Plant NNP 40404 4689 7 life life NN 40404 4689 8 of of IN 40404 4689 9 the the DT 40404 4689 10 Triassic Triassic NNP 40404 4689 11 and and CC 40404 4689 12 Jurassic.= Jurassic.= NNP 40404 4689 13 The the DT 40404 4689 14 Carboniferous carboniferous JJ 40404 4689 15 forests forest NNS 40404 4689 16 of of IN 40404 4689 17 lepidodendrons lepidodendron NNS 40404 4689 18 and and CC 40404 4689 19 sigillarids sigillarid NNS 40404 4689 20 had have VBD 40404 4689 21 now now RB 40404 4689 22 vanished vanish VBN 40404 4689 23 from from IN 40404 4689 24 the the DT 40404 4689 25 earth earth NN 40404 4689 26 . . . 40404 4690 1 The the DT 40404 4690 2 uplands upland NNS 40404 4690 3 were be VBD 40404 4690 4 clothed clothe VBN 40404 4690 5 with with IN 40404 4690 6 conifers conifer NNS 40404 4690 7 , , , 40404 4690 8 like like IN 40404 4690 9 the the DT 40404 4690 10 Araucarian araucarian JJ 40404 4690 11 pines pine NNS 40404 4690 12 of of IN 40404 4690 13 South South NNP 40404 4690 14 America America NNP 40404 4690 15 and and CC 40404 4690 16 Australia Australia NNP 40404 4690 17 . . . 40404 4691 1 Dense dense JJ 40404 4691 2 forests forest NNS 40404 4691 3 of of IN 40404 4691 4 tree tree NN 40404 4691 5 ferns fern VBZ 40404 4691 6 throve throve VBP 40404 4691 7 in in IN 40404 4691 8 moist moist JJ 40404 4691 9 regions region NNS 40404 4691 10 , , , 40404 4691 11 and and CC 40404 4691 12 canebrakes canebrake NNS 40404 4691 13 of of IN 40404 4691 14 horsetails horsetail NNS 40404 4691 15 of of IN 40404 4691 16 modern modern JJ 40404 4691 17 type type NN 40404 4691 18 , , , 40404 4691 19 but but CC 40404 4691 20 with with IN 40404 4691 21 stems stem NNS 40404 4691 22 reaching reach VBG 40404 4691 23 four four CD 40404 4691 24 inches inch NNS 40404 4691 25 in in IN 40404 4691 26 thickness thickness NN 40404 4691 27 , , , 40404 4691 28 bordered border VBD 40404 4691 29 the the DT 40404 4691 30 lagoons lagoon NNS 40404 4691 31 and and CC 40404 4691 32 marshes marsh NNS 40404 4691 33 . . . 40404 4692 1 Cycads cycad NNS 40404 4692 2 were be VBD 40404 4692 3 exceedingly exceedingly RB 40404 4692 4 abundant abundant JJ 40404 4692 5 . . . 40404 4693 1 These these DT 40404 4693 2 gymnosperms gymnosperm NNS 40404 4693 3 , , , 40404 4693 4 related relate VBN 40404 4693 5 to to IN 40404 4693 6 the the DT 40404 4693 7 pines pine NNS 40404 4693 8 and and CC 40404 4693 9 spruces spruce NNS 40404 4693 10 in in IN 40404 4693 11 structure structure NN 40404 4693 12 and and CC 40404 4693 13 fruiting fruiting NN 40404 4693 14 , , , 40404 4693 15 but but CC 40404 4693 16 palmlike palmlike VB 40404 4693 17 in in IN 40404 4693 18 their -PRON- PRP$ 40404 4693 19 foliage foliage NN 40404 4693 20 , , , 40404 4693 21 and and CC 40404 4693 22 uncoiling uncoil VBG 40404 4693 23 their -PRON- PRP$ 40404 4693 24 long long JJ 40404 4693 25 leaves leave NNS 40404 4693 26 after after IN 40404 4693 27 the the DT 40404 4693 28 manner manner NN 40404 4693 29 of of IN 40404 4693 30 ferns fern NNS 40404 4693 31 , , , 40404 4693 32 culminated culminate VBD 40404 4693 33 in in IN 40404 4693 34 the the DT 40404 4693 35 Jurassic Jurassic NNP 40404 4693 36 . . . 40404 4694 1 From from IN 40404 4694 2 the the DT 40404 4694 3 view view NN 40404 4694 4 point point NN 40404 4694 5 of of IN 40404 4694 6 the the DT 40404 4694 7 botanist botanist NN 40404 4694 8 the the DT 40404 4694 9 Mesozoic Mesozoic NNP 40404 4694 10 is be VBZ 40404 4694 11 the the DT 40404 4694 12 Age Age NNP 40404 4694 13 of of IN 40404 4694 14 Cycads Cycads NNPS 40404 4694 15 , , , 40404 4694 16 and and CC 40404 4694 17 after after IN 40404 4694 18 this this DT 40404 4694 19 era era NN 40404 4694 20 they -PRON- PRP 40404 4694 21 gradually gradually RB 40404 4694 22 decline decline VBP 40404 4694 23 to to IN 40404 4694 24 the the DT 40404 4694 25 small small JJ 40404 4694 26 number number NN 40404 4694 27 of of IN 40404 4694 28 species specie NNS 40404 4694 29 now now RB 40404 4694 30 existing exist VBG 40404 4694 31 in in IN 40404 4694 32 tropical tropical JJ 40404 4694 33 latitudes latitude NNS 40404 4694 34 . . . 40404 4695 1 [ [ -LRB- 40404 4695 2 Illustration illustration NN 40404 4695 3 : : : 40404 4695 4 Fig Fig NNP 40404 4695 5 . . . 40404 4696 1 318 318 CD 40404 4696 2 . . . 40404 4697 1 A a DT 40404 4697 2 Living live VBG 40404 4697 3 Cycad Cycad NNP 40404 4697 4 of of IN 40404 4697 5 Australia Australia NNP 40404 4697 6 ] ] -RRB- 40404 4697 7 [ [ -LRB- 40404 4697 8 Illustration illustration NN 40404 4697 9 : : : 40404 4697 10 Fig Fig NNP 40404 4697 11 . . . 40404 4698 1 319 319 CD 40404 4698 2 . . . 40404 4699 1 Stem stem NN 40404 4699 2 of of IN 40404 4699 3 a a DT 40404 4699 4 Mesozoic Mesozoic NNP 40404 4699 5 Cycad Cycad NNP 40404 4699 6 ] ] -RRB- 40404 4699 7 = = SYM 40404 4699 8 Plant plant NN 40404 4699 9 life life NN 40404 4699 10 of of IN 40404 4699 11 the the DT 40404 4699 12 Cretaceous.= Cretaceous.= NNP 40404 4699 13 In in IN 40404 4699 14 the the DT 40404 4699 15 Lower Lower NNP 40404 4699 16 Cretaceous Cretaceous NNP 40404 4699 17 the the DT 40404 4699 18 woodlands woodland NNS 40404 4699 19 continued continue VBD 40404 4699 20 of of IN 40404 4699 21 much much RB 40404 4699 22 the the DT 40404 4699 23 same same JJ 40404 4699 24 type type NN 40404 4699 25 as as IN 40404 4699 26 during during IN 40404 4699 27 the the DT 40404 4699 28 Jurassic Jurassic NNP 40404 4699 29 . . . 40404 4700 1 The the DT 40404 4700 2 forerunners forerunner NNS 40404 4700 3 now now RB 40404 4700 4 appeared appear VBD 40404 4700 5 of of IN 40404 4700 6 the the DT 40404 4700 7 modern modern JJ 40404 4700 8 dicotyls dicotyls NN 40404 4700 9 ( ( -LRB- 40404 4700 10 plants plant NNS 40404 4700 11 with with IN 40404 4700 12 two two CD 40404 4700 13 seed seed NN 40404 4700 14 leaves leave NNS 40404 4700 15 ) ) -RRB- 40404 4700 16 , , , 40404 4700 17 and and CC 40404 4700 18 in in IN 40404 4700 19 the the DT 40404 4700 20 Middle Middle NNP 40404 4700 21 Cretaceous Cretaceous NNP 40404 4700 22 the the DT 40404 4700 23 monocotyledonous monocotyledonous JJ 40404 4700 24 group group NN 40404 4700 25 of of IN 40404 4700 26 palms palm NNS 40404 4700 27 came come VBD 40404 4700 28 in in RP 40404 4700 29 . . . 40404 4701 1 Palms palm NNS 40404 4701 2 are be VBP 40404 4701 3 so so RB 40404 4701 4 like like IN 40404 4701 5 cycads cycad NNS 40404 4701 6 that that WDT 40404 4701 7 we -PRON- PRP 40404 4701 8 may may MD 40404 4701 9 regard regard VB 40404 4701 10 them -PRON- PRP 40404 4701 11 as as IN 40404 4701 12 the the DT 40404 4701 13 descendants descendant NNS 40404 4701 14 of of IN 40404 4701 15 some some DT 40404 4701 16 cycad cycad NNS 40404 4701 17 type type NN 40404 4701 18 . . . 40404 4702 1 In in IN 40404 4702 2 the the DT 40404 4702 3 _ _ NNP 40404 4702 4 Upper Upper NNP 40404 4702 5 Cretaceous Cretaceous NNP 40404 4702 6 _ _ NNP 40404 4702 7 , , , 40404 4702 8 cycads cycad NNS 40404 4702 9 become become VBP 40404 4702 10 rare rare JJ 40404 4702 11 . . . 40404 4703 1 The the DT 40404 4703 2 highest high JJS 40404 4703 3 types type NNS 40404 4703 4 of of IN 40404 4703 5 flowering flower VBG 40404 4703 6 plants plant NNS 40404 4703 7 gain gain VBP 40404 4703 8 a a DT 40404 4703 9 complete complete JJ 40404 4703 10 ascendency ascendency NN 40404 4703 11 , , , 40404 4703 12 and and CC 40404 4703 13 forests forest NNS 40404 4703 14 of of IN 40404 4703 15 modern modern JJ 40404 4703 16 aspect aspect NN 40404 4703 17 cover cover VB 40404 4703 18 the the DT 40404 4703 19 continent continent NN 40404 4703 20 from from IN 40404 4703 21 the the DT 40404 4703 22 Gulf Gulf NNP 40404 4703 23 of of IN 40404 4703 24 Mexico Mexico NNP 40404 4703 25 to to IN 40404 4703 26 the the DT 40404 4703 27 Arctic Arctic NNP 40404 4703 28 Ocean Ocean NNP 40404 4703 29 . . . 40404 4704 1 Among among IN 40404 4704 2 the the DT 40404 4704 3 kinds kind NNS 40404 4704 4 of of IN 40404 4704 5 forest forest NN 40404 4704 6 trees tree NNS 40404 4704 7 whose whose WP$ 40404 4704 8 remains remain NNS 40404 4704 9 are be VBP 40404 4704 10 found find VBN 40404 4704 11 in in IN 40404 4704 12 the the DT 40404 4704 13 continental continental JJ 40404 4704 14 deposits deposit NNS 40404 4704 15 of of IN 40404 4704 16 the the DT 40404 4704 17 Cretaceous Cretaceous NNP 40404 4704 18 are be VBP 40404 4704 19 the the DT 40404 4704 20 magnolia magnolia NNP 40404 4704 21 , , , 40404 4704 22 the the DT 40404 4704 23 myrtle myrtle NN 40404 4704 24 , , , 40404 4704 25 the the DT 40404 4704 26 laurel laurel NN 40404 4704 27 , , , 40404 4704 28 the the DT 40404 4704 29 fig fig NN 40404 4704 30 , , , 40404 4704 31 the the DT 40404 4704 32 tulip tulip NN 40404 4704 33 tree tree NN 40404 4704 34 , , , 40404 4704 35 the the DT 40404 4704 36 chestnut chestnut NN 40404 4704 37 , , , 40404 4704 38 the the DT 40404 4704 39 oak oak NN 40404 4704 40 , , , 40404 4704 41 beech beech NNP 40404 4704 42 , , , 40404 4704 43 elm elm NNP 40404 4704 44 , , , 40404 4704 45 poplar poplar NNP 40404 4704 46 , , , 40404 4704 47 willow willow NN 40404 4704 48 , , , 40404 4704 49 birch birch NNP 40404 4704 50 , , , 40404 4704 51 and and CC 40404 4704 52 maple maple NN 40404 4704 53 . . . 40404 4705 1 Forests forest NNS 40404 4705 2 of of IN 40404 4705 3 Eucalyptus Eucalyptus NNP 40404 4705 4 grew grow VBD 40404 4705 5 along along IN 40404 4705 6 the the DT 40404 4705 7 coast coast NN 40404 4705 8 of of IN 40404 4705 9 New New NNP 40404 4705 10 England England NNP 40404 4705 11 , , , 40404 4705 12 and and CC 40404 4705 13 palms palm NNS 40404 4705 14 on on IN 40404 4705 15 the the DT 40404 4705 16 Pacific Pacific NNP 40404 4705 17 shores shore NNS 40404 4705 18 of of IN 40404 4705 19 British British NNP 40404 4705 20 Columbia Columbia NNP 40404 4705 21 . . . 40404 4706 1 Sequoias sequoia NNS 40404 4706 2 of of IN 40404 4706 3 many many JJ 40404 4706 4 varieties variety NNS 40404 4706 5 ranged range VBD 40404 4706 6 far far RB 40404 4706 7 into into IN 40404 4706 8 northern northern JJ 40404 4706 9 Canada Canada NNP 40404 4706 10 . . . 40404 4707 1 In in IN 40404 4707 2 northern northern JJ 40404 4707 3 Greenland Greenland NNP 40404 4707 4 there there EX 40404 4707 5 were be VBD 40404 4707 6 luxuriant luxuriant JJ 40404 4707 7 forests forest NNS 40404 4707 8 of of IN 40404 4707 9 magnolias magnolia NNS 40404 4707 10 , , , 40404 4707 11 figs fig NNS 40404 4707 12 , , , 40404 4707 13 and and CC 40404 4707 14 cycads cycad NNS 40404 4707 15 ; ; : 40404 4707 16 and and CC 40404 4707 17 a a DT 40404 4707 18 similar similar JJ 40404 4707 19 flora flora NNS 40404 4707 20 has have VBZ 40404 4707 21 been be VBN 40404 4707 22 disinterred disinter VBN 40404 4707 23 from from IN 40404 4707 24 the the DT 40404 4707 25 Cretaceous cretaceous JJ 40404 4707 26 rocks rock NNS 40404 4707 27 of of IN 40404 4707 28 Alaska Alaska NNP 40404 4707 29 and and CC 40404 4707 30 Spitzbergen Spitzbergen NNP 40404 4707 31 . . . 40404 4708 1 Evidently evidently RB 40404 4708 2 the the DT 40404 4708 3 lands land NNS 40404 4708 4 within within IN 40404 4708 5 the the DT 40404 4708 6 Arctic Arctic NNP 40404 4708 7 Circle Circle NNP 40404 4708 8 enjoyed enjoy VBD 40404 4708 9 a a DT 40404 4708 10 warm warm JJ 40404 4708 11 and and CC 40404 4708 12 genial genial JJ 40404 4708 13 climate climate NN 40404 4708 14 , , , 40404 4708 15 as as IN 40404 4708 16 they -PRON- PRP 40404 4708 17 had have VBD 40404 4708 18 done do VBN 40404 4708 19 during during IN 40404 4708 20 the the DT 40404 4708 21 Paleozoic Paleozoic NNP 40404 4708 22 . . . 40404 4709 1 Greenland Greenland NNP 40404 4709 2 had have VBD 40404 4709 3 the the DT 40404 4709 4 temperature temperature NN 40404 4709 5 of of IN 40404 4709 6 Cuba Cuba NNP 40404 4709 7 and and CC 40404 4709 8 southern southern JJ 40404 4709 9 Florida Florida NNP 40404 4709 10 , , , 40404 4709 11 and and CC 40404 4709 12 the the DT 40404 4709 13 time time NN 40404 4709 14 was be VBD 40404 4709 15 yet yet RB 40404 4709 16 far far RB 40404 4709 17 distant distant JJ 40404 4709 18 when when WRB 40404 4709 19 it -PRON- PRP 40404 4709 20 was be VBD 40404 4709 21 to to TO 40404 4709 22 be be VB 40404 4709 23 wrapped wrap VBN 40404 4709 24 in in IN 40404 4709 25 glacier glacier NN 40404 4709 26 ice ice NN 40404 4709 27 . . . 40404 4710 1 [ [ -LRB- 40404 4710 2 Illustration illustration NN 40404 4710 3 : : : 40404 4710 4 Fig Fig NNP 40404 4710 5 . . . 40404 4711 1 320 320 CD 40404 4711 2 . . . 40404 4712 1 A a DT 40404 4712 2 Jurassic Jurassic NNP 40404 4712 3 Long Long NNP 40404 4712 4 - - HYPH 40404 4712 5 Tailed Tailed NNP 40404 4712 6 Crustacean Crustacean NNP 40404 4712 7 ] ] -RRB- 40404 4712 8 = = SYM 40404 4712 9 Invertebrates.= Invertebrates.= NNP 40404 4712 10 During during IN 40404 4712 11 the the DT 40404 4712 12 long long JJ 40404 4712 13 succession succession NN 40404 4712 14 of of IN 40404 4712 15 the the DT 40404 4712 16 ages age NNS 40404 4712 17 of of IN 40404 4712 18 the the DT 40404 4712 19 Mesozoic Mesozoic NNP 40404 4712 20 , , , 40404 4712 21 with with IN 40404 4712 22 their -PRON- PRP$ 40404 4712 23 vast vast JJ 40404 4712 24 geographical geographical JJ 40404 4712 25 changes change NNS 40404 4712 26 , , , 40404 4712 27 there there EX 40404 4712 28 were be VBD 40404 4712 29 many many JJ 40404 4712 30 and and CC 40404 4712 31 great great JJ 40404 4712 32 changes change NNS 40404 4712 33 in in IN 40404 4712 34 organisms organism NNS 40404 4712 35 . . . 40404 4713 1 Species specie NNS 40404 4713 2 were be VBD 40404 4713 3 replaced replace VBN 40404 4713 4 again again RB 40404 4713 5 and and CC 40404 4713 6 again again RB 40404 4713 7 by by IN 40404 4713 8 others other NNS 40404 4713 9 better well RBR 40404 4713 10 fitted fit VBD 40404 4713 11 to to IN 40404 4713 12 the the DT 40404 4713 13 changing change VBG 40404 4713 14 environment environment NN 40404 4713 15 . . . 40404 4714 1 During during IN 40404 4714 2 the the DT 40404 4714 3 Lower low JJR 40404 4714 4 Cretaceous cretaceous JJ 40404 4714 5 alone alone RB 40404 4714 6 there there EX 40404 4714 7 were be VBD 40404 4714 8 no no RB 40404 4714 9 less less JJR 40404 4714 10 than than IN 40404 4714 11 six six CD 40404 4714 12 successive successive JJ 40404 4714 13 changes change NNS 40404 4714 14 in in IN 40404 4714 15 the the DT 40404 4714 16 faunas fauna NNS 40404 4714 17 which which WDT 40404 4714 18 inhabited inhabit VBD 40404 4714 19 the the DT 40404 4714 20 limestone limestone NN 40404 4714 21 - - HYPH 40404 4714 22 making make VBG 40404 4714 23 sea sea NN 40404 4714 24 which which WDT 40404 4714 25 then then RB 40404 4714 26 covered cover VBD 40404 4714 27 Texas Texas NNP 40404 4714 28 . . . 40404 4715 1 We -PRON- PRP 40404 4715 2 shall shall MD 40404 4715 3 disregard disregard VB 40404 4715 4 these these DT 40404 4715 5 changes change NNS 40404 4715 6 for for IN 40404 4715 7 the the DT 40404 4715 8 most most JJS 40404 4715 9 part part NN 40404 4715 10 in in IN 40404 4715 11 describing describe VBG 40404 4715 12 the the DT 40404 4715 13 life life NN 40404 4715 14 of of IN 40404 4715 15 the the DT 40404 4715 16 era era NN 40404 4715 17 , , , 40404 4715 18 and and CC 40404 4715 19 shall shall MD 40404 4715 20 confine confine VB 40404 4715 21 our -PRON- PRP$ 40404 4715 22 view view NN 40404 4715 23 to to IN 40404 4715 24 some some DT 40404 4715 25 of of IN 40404 4715 26 the the DT 40404 4715 27 most most RBS 40404 4715 28 important important JJ 40404 4715 29 advances advance NNS 40404 4715 30 made make VBN 40404 4715 31 in in IN 40404 4715 32 the the DT 40404 4715 33 leading lead VBG 40404 4715 34 types type NNS 40404 4715 35 . . . 40404 4716 1 Stromatopora Stromatopora NNP 40404 4716 2 have have VBP 40404 4716 3 disappeared disappear VBN 40404 4716 4 . . . 40404 4717 1 Protozoans protozoan NNS 40404 4717 2 and and CC 40404 4717 3 sponges sponge NNS 40404 4717 4 are be VBP 40404 4717 5 exceedingly exceedingly RB 40404 4717 6 abundant abundant JJ 40404 4717 7 , , , 40404 4717 8 and and CC 40404 4717 9 all all DT 40404 4717 10 contribute contribute VBP 40404 4717 11 to to IN 40404 4717 12 the the DT 40404 4717 13 making making NN 40404 4717 14 of of IN 40404 4717 15 Mesozoic mesozoic JJ 40404 4717 16 strata strata NN 40404 4717 17 . . . 40404 4718 1 Corals coral NNS 40404 4718 2 have have VBP 40404 4718 3 assumed assume VBN 40404 4718 4 a a DT 40404 4718 5 more more RBR 40404 4718 6 modern modern JJ 40404 4718 7 type type NN 40404 4718 8 . . . 40404 4719 1 Sea sea NN 40404 4719 2 urchins urchin NNS 40404 4719 3 have have VBP 40404 4719 4 become become VBN 40404 4719 5 plentiful plentiful JJ 40404 4719 6 ; ; : 40404 4719 7 crinoids crinoid NNS 40404 4719 8 abound abound VBP 40404 4719 9 until until IN 40404 4719 10 the the DT 40404 4719 11 Cretaceous Cretaceous NNP 40404 4719 12 , , , 40404 4719 13 where where WRB 40404 4719 14 they -PRON- PRP 40404 4719 15 begin begin VBP 40404 4719 16 their -PRON- PRP$ 40404 4719 17 decline decline NN 40404 4719 18 to to IN 40404 4719 19 their -PRON- PRP$ 40404 4719 20 present present JJ 40404 4719 21 humble humble JJ 40404 4719 22 station station NN 40404 4719 23 . . . 40404 4720 1 [ [ -LRB- 40404 4720 2 Illustration illustration NN 40404 4720 3 : : : 40404 4720 4 Fig Fig NNP 40404 4720 5 . . . 40404 4721 1 321 321 CD 40404 4721 2 . . . 40404 4722 1 A a DT 40404 4722 2 Fossil Fossil NNP 40404 4722 3 Crab crab NN 40404 4722 4 ] ] -RRB- 40404 4722 5 [ [ -LRB- 40404 4722 6 Illustration illustration NN 40404 4722 7 : : : 40404 4722 8 Fig Fig NNP 40404 4722 9 . . . 40404 4723 1 322 322 CD 40404 4723 2 . . . 40404 4724 1 Cretaceous cretaceous JJ 40404 4724 2 Mollusks Mollusks NNPS 40404 4724 3 _ _ NNP 40404 4724 4 A A NNP 40404 4724 5 _ _ NNP 40404 4724 6 , , , 40404 4724 7 Ostrea Ostrea NNP 40404 4724 8 ( ( -LRB- 40404 4724 9 oyster oyster NN 40404 4724 10 ) ) -RRB- 40404 4724 11 ; ; : 40404 4724 12 _ _ NNP 40404 4724 13 B B NNP 40404 4724 14 _ _ NNP 40404 4724 15 , , , 40404 4724 16 Exogyra Exogyra NNP 40404 4724 17 ; ; : 40404 4724 18 _ _ NNP 40404 4724 19 C C NNP 40404 4724 20 _ _ NNP 40404 4724 21 . . . 40404 4725 1 Gryphæa Gryphæa NNP 40404 4725 2 ] ] -RRB- 40404 4725 3 Trilobites Trilobites NNPS 40404 4725 4 and and CC 40404 4725 5 eurypterids eurypterid NNS 40404 4725 6 are be VBP 40404 4725 7 gone go VBN 40404 4725 8 . . . 40404 4726 1 Ten ten CD 40404 4726 2 - - HYPH 40404 4726 3 footed foot VBN 40404 4726 4 crustaceans crustacean NNS 40404 4726 5 abound abound VBP 40404 4726 6 of of IN 40404 4726 7 the the DT 40404 4726 8 primitive primitive JJ 40404 4726 9 long long RB 40404 4726 10 - - HYPH 40404 4726 11 tailed tail VBN 40404 4726 12 type type NN 40404 4726 13 ( ( -LRB- 40404 4726 14 represented represent VBN 40404 4726 15 by by IN 40404 4726 16 the the DT 40404 4726 17 lobster lobster NN 40404 4726 18 and and CC 40404 4726 19 the the DT 40404 4726 20 crayfish crayfish NN 40404 4726 21 ) ) -RRB- 40404 4726 22 , , , 40404 4726 23 and and CC 40404 4726 24 in in IN 40404 4726 25 the the DT 40404 4726 26 Jurassic Jurassic NNP 40404 4726 27 there there EX 40404 4726 28 appears appear VBZ 40404 4726 29 the the DT 40404 4726 30 modern modern JJ 40404 4726 31 short short RB 40404 4726 32 - - HYPH 40404 4726 33 tailed tailed JJ 40404 4726 34 type type NN 40404 4726 35 represented represent VBN 40404 4726 36 by by IN 40404 4726 37 the the DT 40404 4726 38 crabs crab NNS 40404 4726 39 . . . 40404 4727 1 The the DT 40404 4727 2 latter latter JJ 40404 4727 3 type type NN 40404 4727 4 is be VBZ 40404 4727 5 higher high JJR 40404 4727 6 in in IN 40404 4727 7 organization organization NN 40404 4727 8 and and CC 40404 4727 9 now now RB 40404 4727 10 far far RB 40404 4727 11 more more RBR 40404 4727 12 common common JJ 40404 4727 13 . . . 40404 4728 1 In in IN 40404 4728 2 its -PRON- PRP$ 40404 4728 3 embryological embryological JJ 40404 4728 4 development development NN 40404 4728 5 it -PRON- PRP 40404 4728 6 passes pass VBZ 40404 4728 7 through through IN 40404 4728 8 the the DT 40404 4728 9 long long RB 40404 4728 10 - - HYPH 40404 4728 11 tailed tail VBN 40404 4728 12 stage stage NN 40404 4728 13 ; ; : 40404 4728 14 connecting connect VBG 40404 4728 15 links link NNS 40404 4728 16 in in IN 40404 4728 17 the the DT 40404 4728 18 Mesozoic Mesozoic NNP 40404 4728 19 also also RB 40404 4728 20 indicate indicate VBP 40404 4728 21 that that IN 40404 4728 22 the the DT 40404 4728 23 younger young JJR 40404 4728 24 type type NN 40404 4728 25 is be VBZ 40404 4728 26 the the DT 40404 4728 27 offshoot offshoot NN 40404 4728 28 of of IN 40404 4728 29 the the DT 40404 4728 30 older old JJR 40404 4728 31 . . . 40404 4729 1 Insects insect NNS 40404 4729 2 evolve evolve VBP 40404 4729 3 along along IN 40404 4729 4 diverse diverse JJ 40404 4729 5 lines line NNS 40404 4729 6 , , , 40404 4729 7 giving give VBG 40404 4729 8 rise rise NN 40404 4729 9 to to IN 40404 4729 10 beetles beetle NNS 40404 4729 11 , , , 40404 4729 12 ants ant NNS 40404 4729 13 , , , 40404 4729 14 bees bee NNS 40404 4729 15 , , , 40404 4729 16 and and CC 40404 4729 17 flies fly NNS 40404 4729 18 . . . 40404 4730 1 Brachiopods brachiopod NNS 40404 4730 2 have have VBP 40404 4730 3 dwindled dwindle VBN 40404 4730 4 greatly greatly RB 40404 4730 5 in in IN 40404 4730 6 the the DT 40404 4730 7 number number NN 40404 4730 8 of of IN 40404 4730 9 their -PRON- PRP$ 40404 4730 10 species specie NNS 40404 4730 11 , , , 40404 4730 12 while while IN 40404 4730 13 mollusks mollusk NNS 40404 4730 14 have have VBP 40404 4730 15 correspondingly correspondingly RB 40404 4730 16 increased increase VBN 40404 4730 17 . . . 40404 4731 1 The the DT 40404 4731 2 great great JJ 40404 4731 3 oyster oyster JJ 40404 4731 4 family family NN 40404 4731 5 dates date VBZ 40404 4731 6 from from IN 40404 4731 7 here here RB 40404 4731 8 . . . 40404 4732 1 Cephalopods cephalopod NNS 40404 4732 2 are be VBP 40404 4732 3 now now RB 40404 4732 4 to to TO 40404 4732 5 have have VB 40404 4732 6 their -PRON- PRP$ 40404 4732 7 day day NN 40404 4732 8 . . . 40404 4733 1 The the DT 40404 4733 2 archaic archaic NN 40404 4733 3 Orthoceras Orthoceras NNP 40404 4733 4 lingers linger VBZ 40404 4733 5 on on RP 40404 4733 6 into into IN 40404 4733 7 the the DT 40404 4733 8 Triassic Triassic NNP 40404 4733 9 and and CC 40404 4733 10 becomes become VBZ 40404 4733 11 extinct extinct JJ 40404 4733 12 , , , 40404 4733 13 but but CC 40404 4733 14 a a DT 40404 4733 15 remarkable remarkable JJ 40404 4733 16 development development NN 40404 4733 17 is be VBZ 40404 4733 18 now now RB 40404 4733 19 at at IN 40404 4733 20 hand hand NN 40404 4733 21 for for IN 40404 4733 22 the the DT 40404 4733 23 more more RBR 40404 4733 24 highly highly RB 40404 4733 25 organized organize VBN 40404 4733 26 descendants descendant NNS 40404 4733 27 of of IN 40404 4733 28 this this DT 40404 4733 29 ancient ancient JJ 40404 4733 30 line line NN 40404 4733 31 . . . 40404 4734 1 We -PRON- PRP 40404 4734 2 have have VBP 40404 4734 3 noticed notice VBN 40404 4734 4 that that IN 40404 4734 5 in in IN 40404 4734 6 the the DT 40404 4734 7 Devonian Devonian NNP 40404 4734 8 the the DT 40404 4734 9 sutures suture NNS 40404 4734 10 of of IN 40404 4734 11 some some DT 40404 4734 12 of of IN 40404 4734 13 the the DT 40404 4734 14 chambered chamber VBN 40404 4734 15 shells shell NNS 40404 4734 16 become become VBP 40404 4734 17 angled angled JJ 40404 4734 18 , , , 40404 4734 19 evolving evolve VBG 40404 4734 20 the the DT 40404 4734 21 Goniatite Goniatite NNP 40404 4734 22 type type NN 40404 4734 23 . . . 40404 4735 1 The the DT 40404 4735 2 sutures suture NNS 40404 4735 3 now now RB 40404 4735 4 become become VBP 40404 4735 5 lobed lobed NNP 40404 4735 6 and and CC 40404 4735 7 _ _ NNP 40404 4735 8 corrugated corrugate VBD 40404 4735 9 _ _ NNP 40404 4735 10 in in IN 40404 4735 11 _ _ NNP 40404 4735 12 Ceratites Ceratites NNP 40404 4735 13 _ _ NNP 40404 4735 14 . . . 40404 4736 1 The the DT 40404 4736 2 process process NN 40404 4736 3 was be VBD 40404 4736 4 carried carry VBN 40404 4736 5 still still RB 40404 4736 6 farther farther RB 40404 4736 7 , , , 40404 4736 8 and and CC 40404 4736 9 the the DT 40404 4736 10 sutures suture NNS 40404 4736 11 were be VBD 40404 4736 12 elaborately elaborately RB 40404 4736 13 frilled frille VBN 40404 4736 14 in in IN 40404 4736 15 the the DT 40404 4736 16 great great JJ 40404 4736 17 order order NN 40404 4736 18 of of IN 40404 4736 19 the the DT 40404 4736 20 Ammonites Ammonites NNPS 40404 4736 21 . . . 40404 4737 1 It -PRON- PRP 40404 4737 2 was be VBD 40404 4737 3 in in IN 40404 4737 4 the the DT 40404 4737 5 Jurassic Jurassic NNP 40404 4737 6 that that IN 40404 4737 7 the the DT 40404 4737 8 Ammonites Ammonites NNPS 40404 4737 9 reached reach VBD 40404 4737 10 their -PRON- PRP$ 40404 4737 11 height height NN 40404 4737 12 . . . 40404 4738 1 No no DT 40404 4738 2 fossils fossil NNS 40404 4738 3 are be VBP 40404 4738 4 more more RBR 40404 4738 5 abundant abundant JJ 40404 4738 6 or or CC 40404 4738 7 characteristic characteristic JJ 40404 4738 8 of of IN 40404 4738 9 their -PRON- PRP$ 40404 4738 10 age age NN 40404 4738 11 . . . 40404 4739 1 Great great JJ 40404 4739 2 banks bank NNS 40404 4739 3 of of IN 40404 4739 4 their -PRON- PRP$ 40404 4739 5 shells shell NNS 40404 4739 6 formed form VBD 40404 4739 7 beds bed NNS 40404 4739 8 of of IN 40404 4739 9 limestone limestone NN 40404 4739 10 in in IN 40404 4739 11 warm warm JJ 40404 4739 12 seas sea NNS 40404 4739 13 the the DT 40404 4739 14 world world NN 40404 4739 15 over over RP 40404 4739 16 . . . 40404 4740 1 [ [ -LRB- 40404 4740 2 Illustration illustration NN 40404 4740 3 : : : 40404 4740 4 Fig Fig NNP 40404 4740 5 . . . 40404 4741 1 323 323 CD 40404 4741 2 . . . 40404 4742 1 Ceratites ceratite NNS 40404 4742 2 ] ] -RRB- 40404 4742 3 [ [ -LRB- 40404 4742 4 Illustration illustration NN 40404 4742 5 : : : 40404 4742 6 Fig Fig NNP 40404 4742 7 . . . 40404 4743 1 324 324 CD 40404 4743 2 . . . 40404 4744 1 An an DT 40404 4744 2 Ammonite Ammonite NNP 40404 4744 3 A a DT 40404 4744 4 portion portion NN 40404 4744 5 of of IN 40404 4744 6 the the DT 40404 4744 7 shell shell NN 40404 4744 8 is be VBZ 40404 4744 9 removed remove VBN 40404 4744 10 to to TO 40404 4744 11 show show VB 40404 4744 12 frilling frilling IN 40404 4744 13 of of IN 40404 4744 14 suture suture NN 40404 4744 15 ] ] -RRB- 40404 4744 16 [ [ -LRB- 40404 4744 17 Illustration illustration NN 40404 4744 18 : : : 40404 4744 19 Fig Fig NNP 40404 4744 20 . . . 40404 4745 1 325 325 CD 40404 4745 2 . . . 40404 4746 1 Slab Slab NNP 40404 4746 2 of of IN 40404 4746 3 Rock Rock NNP 40404 4746 4 covered cover VBN 40404 4746 5 with with IN 40404 4746 6 Ammonites,--a ammonites,--a NN 40404 4746 7 Bit bit NN 40404 4746 8 of of IN 40404 4746 9 a a DT 40404 4746 10 Mesozoic Mesozoic NNP 40404 4746 11 Sea Sea NNP 40404 4746 12 Bottom Bottom NNP 40404 4746 13 ] ] -RRB- 40404 4746 14 [ [ -LRB- 40404 4746 15 Illustration illustration NN 40404 4746 16 : : : 40404 4746 17 Fig Fig NNP 40404 4746 18 . . . 40404 4747 1 326 326 CD 40404 4747 2 . . . 40404 4748 1 Representative Representative NNP 40404 4748 2 Species Species NNPS 40404 4748 3 of of IN 40404 4748 4 Different different JJ 40404 4748 5 Families family NNS 40404 4748 6 of of IN 40404 4748 7 Ammonites Ammonites NNPS 40404 4748 8 ] ] -RRB- 40404 4748 9 The the DT 40404 4748 10 ammonite ammonite JJ 40404 4748 11 stem stem NN 40404 4748 12 branched branch VBN 40404 4748 13 into into IN 40404 4748 14 a a DT 40404 4748 15 most most RBS 40404 4748 16 luxuriant luxuriant JJ 40404 4748 17 variety variety NN 40404 4748 18 of of IN 40404 4748 19 forms form NNS 40404 4748 20 . . . 40404 4749 1 The the DT 40404 4749 2 typical typical JJ 40404 4749 3 form form NN 40404 4749 4 was be VBD 40404 4749 5 closely closely RB 40404 4749 6 coiled coil VBN 40404 4749 7 like like IN 40404 4749 8 a a DT 40404 4749 9 nautilus nautilus NN 40404 4749 10 . . . 40404 4750 1 In in IN 40404 4750 2 others other NNS 40404 4750 3 the the DT 40404 4750 4 coil coil NN 40404 4750 5 was be VBD 40404 4750 6 more more RBR 40404 4750 7 or or CC 40404 4750 8 less less RBR 40404 4750 9 open open JJ 40404 4750 10 , , , 40404 4750 11 or or CC 40404 4750 12 even even RB 40404 4750 13 erected erect VBN 40404 4750 14 into into IN 40404 4750 15 a a DT 40404 4750 16 spiral spiral NN 40404 4750 17 . . . 40404 4751 1 Some some DT 40404 4751 2 were be VBD 40404 4751 3 hook hook NN 40404 4751 4 - - HYPH 40404 4751 5 shaped shape VBN 40404 4751 6 , , , 40404 4751 7 and and CC 40404 4751 8 there there EX 40404 4751 9 were be VBD 40404 4751 10 members member NNS 40404 4751 11 of of IN 40404 4751 12 the the DT 40404 4751 13 order order NN 40404 4751 14 in in IN 40404 4751 15 which which WDT 40404 4751 16 the the DT 40404 4751 17 shell shell NN 40404 4751 18 was be VBD 40404 4751 19 straight straight JJ 40404 4751 20 , , , 40404 4751 21 and and CC 40404 4751 22 yet yet RB 40404 4751 23 retained retain VBN 40404 4751 24 all all PDT 40404 4751 25 the the DT 40404 4751 26 internal internal JJ 40404 4751 27 structures structure NNS 40404 4751 28 of of IN 40404 4751 29 its -PRON- PRP$ 40404 4751 30 kind kind NN 40404 4751 31 . . . 40404 4752 1 At at IN 40404 4752 2 the the DT 40404 4752 3 end end NN 40404 4752 4 of of IN 40404 4752 5 the the DT 40404 4752 6 Mesozoic Mesozoic NNP 40404 4752 7 the the DT 40404 4752 8 entire entire JJ 40404 4752 9 tribe tribe NN 40404 4752 10 of of IN 40404 4752 11 ammonites ammonites NNPS 40404 4752 12 became become VBD 40404 4752 13 extinct extinct JJ 40404 4752 14 . . . 40404 4753 1 The the DT 40404 4753 2 Belemnite Belemnite NNP 40404 4753 3 ( ( -LRB- 40404 4753 4 Greek Greek NNP 40404 4753 5 , , , 40404 4753 6 _ _ NNP 40404 4753 7 belemnon belemnon NN 40404 4753 8 _ _ NNP 40404 4753 9 , , , 40404 4753 10 a a DT 40404 4753 11 dart dart NN 40404 4753 12 ) ) -RRB- 40404 4753 13 is be VBZ 40404 4753 14 a a DT 40404 4753 15 distinctly distinctly RB 40404 4753 16 higher high JJR 40404 4753 17 type type NN 40404 4753 18 of of IN 40404 4753 19 cephalopod cephalopod NN 40404 4753 20 which which WDT 40404 4753 21 appeared appear VBD 40404 4753 22 in in IN 40404 4753 23 the the DT 40404 4753 24 Triassic Triassic NNP 40404 4753 25 , , , 40404 4753 26 became become VBD 40404 4753 27 numerous numerous JJ 40404 4753 28 and and CC 40404 4753 29 varied varied JJ 40404 4753 30 in in IN 40404 4753 31 the the DT 40404 4753 32 Jurassic Jurassic NNP 40404 4753 33 and and CC 40404 4753 34 Cretaceous Cretaceous NNP 40404 4753 35 , , , 40404 4753 36 and and CC 40404 4753 37 died die VBD 40404 4753 38 out out RP 40404 4753 39 early early RB 40404 4753 40 in in IN 40404 4753 41 the the DT 40404 4753 42 Tertiary Tertiary NNP 40404 4753 43 . . . 40404 4754 1 Like like IN 40404 4754 2 the the DT 40404 4754 3 squids squid NNS 40404 4754 4 and and CC 40404 4754 5 cuttlefish cuttlefish NN 40404 4754 6 , , , 40404 4754 7 of of IN 40404 4754 8 which which WDT 40404 4754 9 it -PRON- PRP 40404 4754 10 was be VBD 40404 4754 11 the the DT 40404 4754 12 prototype prototype NN 40404 4754 13 , , , 40404 4754 14 it -PRON- PRP 40404 4754 15 had have VBD 40404 4754 16 an an DT 40404 4754 17 internal internal JJ 40404 4754 18 calcareous calcareous JJ 40404 4754 19 shell shell NN 40404 4754 20 . . . 40404 4755 1 This this DT 40404 4755 2 consisted consist VBD 40404 4755 3 of of IN 40404 4755 4 a a DT 40404 4755 5 chambered chamber VBN 40404 4755 6 and and CC 40404 4755 7 siphuncled siphuncle VBN 40404 4755 8 cone cone NN 40404 4755 9 , , , 40404 4755 10 whose whose WP$ 40404 4755 11 point point NN 40404 4755 12 was be VBD 40404 4755 13 sheathed sheathe VBN 40404 4755 14 in in IN 40404 4755 15 a a DT 40404 4755 16 long long JJ 40404 4755 17 solid solid JJ 40404 4755 18 guard guard NN 40404 4755 19 somewhat somewhat RB 40404 4755 20 like like IN 40404 4755 21 a a DT 40404 4755 22 dart dart NN 40404 4755 23 . . . 40404 4756 1 The the DT 40404 4756 2 animal animal NN 40404 4756 3 carried carry VBD 40404 4756 4 an an DT 40404 4756 5 ink ink NN 40404 4756 6 sac sac NN 40404 4756 7 , , , 40404 4756 8 and and CC 40404 4756 9 no no RB 40404 4756 10 doubt doubt RB 40404 4756 11 used use VBD 40404 4756 12 it -PRON- PRP 40404 4756 13 as as IN 40404 4756 14 that that DT 40404 4756 15 of of IN 40404 4756 16 the the DT 40404 4756 17 modern modern JJ 40404 4756 18 cuttlefish cuttlefish NN 40404 4756 19 is be VBZ 40404 4756 20 used,--to used,--to NNP 40404 4756 21 darken darken VBN 40404 4756 22 the the DT 40404 4756 23 water water NN 40404 4756 24 and and CC 40404 4756 25 make make VB 40404 4756 26 easy easy JJ 40404 4756 27 an an DT 40404 4756 28 escape escape NN 40404 4756 29 from from IN 40404 4756 30 foes foe NNS 40404 4756 31 . . . 40404 4757 1 Belemnites belemnite NNS 40404 4757 2 have have VBP 40404 4757 3 sometimes sometimes RB 40404 4757 4 been be VBN 40404 4757 5 sketched sketch VBN 40404 4757 6 with with IN 40404 4757 7 fossil fossil NN 40404 4757 8 sepia sepia NN 40404 4757 9 , , , 40404 4757 10 or or CC 40404 4757 11 india india NNP 40404 4757 12 ink ink NNP 40404 4757 13 , , , 40404 4757 14 from from IN 40404 4757 15 their -PRON- PRP$ 40404 4757 16 own own JJ 40404 4757 17 ink ink NN 40404 4757 18 sacs sacs NN 40404 4757 19 . . . 40404 4758 1 In in IN 40404 4758 2 the the DT 40404 4758 3 belemnites belemnite NNS 40404 4758 4 and and CC 40404 4758 5 their -PRON- PRP$ 40404 4758 6 descendants descendant NNS 40404 4758 7 , , , 40404 4758 8 the the DT 40404 4758 9 squids squid NNS 40404 4758 10 and and CC 40404 4758 11 cuttlefish cuttlefish NN 40404 4758 12 , , , 40404 4758 13 the the DT 40404 4758 14 cephalopods cephalopod NNS 40404 4758 15 made make VBD 40404 4758 16 the the DT 40404 4758 17 radical radical JJ 40404 4758 18 change change NN 40404 4758 19 from from IN 40404 4758 20 external external JJ 40404 4758 21 to to IN 40404 4758 22 the the DT 40404 4758 23 internal internal JJ 40404 4758 24 shell shell NN 40404 4758 25 . . . 40404 4759 1 They -PRON- PRP 40404 4759 2 abandoned abandon VBD 40404 4759 3 the the DT 40404 4759 4 defensive defensive JJ 40404 4759 5 system system NN 40404 4759 6 of of IN 40404 4759 7 warfare warfare NN 40404 4759 8 and and CC 40404 4759 9 boldly boldly RB 40404 4759 10 took take VBD 40404 4759 11 up up RP 40404 4759 12 the the DT 40404 4759 13 offensive offensive NN 40404 4759 14 . . . 40404 4760 1 No no RB 40404 4760 2 doubt doubt RB 40404 4760 3 , , , 40404 4760 4 like like IN 40404 4760 5 their -PRON- PRP$ 40404 4760 6 descendants descendant NNS 40404 4760 7 , , , 40404 4760 8 the the DT 40404 4760 9 belemnites belemnite NNS 40404 4760 10 were be VBD 40404 4760 11 exceedingly exceedingly RB 40404 4760 12 active active JJ 40404 4760 13 and and CC 40404 4760 14 voracious voracious JJ 40404 4760 15 creatures creature NNS 40404 4760 16 . . . 40404 4761 1 [ [ -LRB- 40404 4761 2 Illustration illustration NN 40404 4761 3 : : : 40404 4761 4 Fig Fig NNP 40404 4761 5 . . . 40404 4762 1 327 327 CD 40404 4762 2 . . . 40404 4763 1 Internal Internal NNP 40404 4763 2 Shell Shell NNP 40404 4763 3 of of IN 40404 4763 4 Belemnite Belemnite NNP 40404 4763 5 ] ] -RRB- 40404 4763 6 = = NFP 40404 4763 7 Fishes fish NNS 40404 4763 8 and and CC 40404 4763 9 amphibians.= amphibians.= CD 40404 4763 10 In in IN 40404 4763 11 the the DT 40404 4763 12 Triassic Triassic NNP 40404 4763 13 and and CC 40404 4763 14 Jurassic Jurassic NNP 40404 4763 15 , , , 40404 4763 16 little little JJ 40404 4763 17 progress progress NN 40404 4763 18 was be VBD 40404 4763 19 made make VBN 40404 4763 20 among among IN 40404 4763 21 the the DT 40404 4763 22 fishes fish NNS 40404 4763 23 , , , 40404 4763 24 and and CC 40404 4763 25 the the DT 40404 4763 26 ganoid ganoid NN 40404 4763 27 was be VBD 40404 4763 28 still still RB 40404 4763 29 the the DT 40404 4763 30 leading leading JJ 40404 4763 31 type type NN 40404 4763 32 . . . 40404 4764 1 In in IN 40404 4764 2 the the DT 40404 4764 3 Cretaceous cretaceous JJ 40404 4764 4 the the DT 40404 4764 5 teleosts teleost NNS 40404 4764 6 , , , 40404 4764 7 or or CC 40404 4764 8 bony bony NN 40404 4764 9 fishes fish NNS 40404 4764 10 , , , 40404 4764 11 made make VBD 40404 4764 12 their -PRON- PRP$ 40404 4764 13 appearance appearance NN 40404 4764 14 , , , 40404 4764 15 while while IN 40404 4764 16 ganoids ganoid NNS 40404 4764 17 declined decline VBD 40404 4764 18 toward toward IN 40404 4764 19 their -PRON- PRP$ 40404 4764 20 present present JJ 40404 4764 21 subordinate subordinate JJ 40404 4764 22 place place NN 40404 4764 23 . . . 40404 4765 1 The the DT 40404 4765 2 amphibians amphibian NNS 40404 4765 3 culminated culminate VBD 40404 4765 4 in in IN 40404 4765 5 the the DT 40404 4765 6 Triassic Triassic NNP 40404 4765 7 , , , 40404 4765 8 some some DT 40404 4765 9 being be VBG 40404 4765 10 formidable formidable JJ 40404 4765 11 creatures creature NNS 40404 4765 12 as as RB 40404 4765 13 large large JJ 40404 4765 14 as as IN 40404 4765 15 alligators alligator NNS 40404 4765 16 . . . 40404 4766 1 They -PRON- PRP 40404 4766 2 were be VBD 40404 4766 3 still still RB 40404 4766 4 of of IN 40404 4766 5 the the DT 40404 4766 6 primitive primitive JJ 40404 4766 7 Paleozoic paleozoic JJ 40404 4766 8 types type NNS 40404 4766 9 . . . 40404 4767 1 Their -PRON- PRP$ 40404 4767 2 pygmy pygmy NN 40404 4767 3 descendants descendant NNS 40404 4767 4 of of IN 40404 4767 5 more more JJR 40404 4767 6 modern modern JJ 40404 4767 7 types type NNS 40404 4767 8 are be VBP 40404 4767 9 not not RB 40404 4767 10 found find VBN 40404 4767 11 until until IN 40404 4767 12 later later RB 40404 4767 13 , , , 40404 4767 14 salamanders salamander NNS 40404 4767 15 appearing appear VBG 40404 4767 16 first first RB 40404 4767 17 in in IN 40404 4767 18 the the DT 40404 4767 19 Cretaceous Cretaceous NNP 40404 4767 20 , , , 40404 4767 21 and and CC 40404 4767 22 frogs frog NNS 40404 4767 23 at at IN 40404 4767 24 the the DT 40404 4767 25 beginning beginning NN 40404 4767 26 of of IN 40404 4767 27 the the DT 40404 4767 28 Cenozoic Cenozoic NNP 40404 4767 29 . . . 40404 4768 1 No no DT 40404 4768 2 remains remain NNS 40404 4768 3 of of IN 40404 4768 4 amphibians amphibian NNS 40404 4768 5 have have VBP 40404 4768 6 been be VBN 40404 4768 7 discovered discover VBN 40404 4768 8 in in IN 40404 4768 9 the the DT 40404 4768 10 Jurassic Jurassic NNP 40404 4768 11 . . . 40404 4769 1 Do do VBP 40404 4769 2 you -PRON- PRP 40404 4769 3 infer infer VB 40404 4769 4 from from IN 40404 4769 5 this this DT 40404 4769 6 that that IN 40404 4769 7 there there EX 40404 4769 8 were be VBD 40404 4769 9 none none NN 40404 4769 10 in in IN 40404 4769 11 existence existence NN 40404 4769 12 at at IN 40404 4769 13 that that DT 40404 4769 14 time time NN 40404 4769 15 ? ? . 40404 4770 1 Reptiles reptile NNS 40404 4770 2 of of IN 40404 4770 3 the the DT 40404 4770 4 Mesozoic Mesozoic NNP 40404 4770 5 The the DT 40404 4770 6 great great JJ 40404 4770 7 order order NN 40404 4770 8 of of IN 40404 4770 9 Reptiles reptile NNS 40404 4770 10 made make VBD 40404 4770 11 its -PRON- PRP$ 40404 4770 12 advent advent NN 40404 4770 13 in in IN 40404 4770 14 the the DT 40404 4770 15 Permian Permian NNP 40404 4770 16 , , , 40404 4770 17 culminated culminate VBN 40404 4770 18 in in IN 40404 4770 19 the the DT 40404 4770 20 Triassic Triassic NNP 40404 4770 21 and and CC 40404 4770 22 Jurassic Jurassic NNP 40404 4770 23 , , , 40404 4770 24 and and CC 40404 4770 25 began begin VBD 40404 4770 26 to to TO 40404 4770 27 decline decline VB 40404 4770 28 in in IN 40404 4770 29 the the DT 40404 4770 30 Cretaceous Cretaceous NNP 40404 4770 31 . . . 40404 4771 1 The the DT 40404 4771 2 advance advance NN 40404 4771 3 from from IN 40404 4771 4 the the DT 40404 4771 5 amphibian amphibian NN 40404 4771 6 to to IN 40404 4771 7 the the DT 40404 4771 8 reptile reptile NN 40404 4771 9 was be VBD 40404 4771 10 a a DT 40404 4771 11 long long JJ 40404 4771 12 forward forward JJ 40404 4771 13 step step NN 40404 4771 14 in in IN 40404 4771 15 the the DT 40404 4771 16 evolution evolution NN 40404 4771 17 of of IN 40404 4771 18 the the DT 40404 4771 19 vertebrates vertebrate NNS 40404 4771 20 . . . 40404 4772 1 In in IN 40404 4772 2 the the DT 40404 4772 3 reptile reptile NN 40404 4772 4 the the DT 40404 4772 5 vertebrate vertebrate NN 40404 4772 6 skeleton skeleton NN 40404 4772 7 now now RB 40404 4772 8 became become VBD 40404 4772 9 completely completely RB 40404 4772 10 ossified ossified JJ 40404 4772 11 . . . 40404 4773 1 Gills Gills NNP 40404 4773 2 were be VBD 40404 4773 3 abandoned abandon VBN 40404 4773 4 and and CC 40404 4773 5 breathing breathe VBG 40404 4773 6 was be VBD 40404 4773 7 by by IN 40404 4773 8 lungs lung NNS 40404 4773 9 alone alone RB 40404 4773 10 . . . 40404 4774 1 The the DT 40404 4774 2 development development NN 40404 4774 3 of of IN 40404 4774 4 the the DT 40404 4774 5 individual individual NN 40404 4774 6 from from IN 40404 4774 7 the the DT 40404 4774 8 egg egg NN 40404 4774 9 to to IN 40404 4774 10 maturity maturity NN 40404 4774 11 was be VBD 40404 4774 12 uninterrupted uninterrupted JJ 40404 4774 13 by by IN 40404 4774 14 any any DT 40404 4774 15 metamorphosis metamorphosis NN 40404 4774 16 , , , 40404 4774 17 such such JJ 40404 4774 18 as as IN 40404 4774 19 that that DT 40404 4774 20 of of IN 40404 4774 21 the the DT 40404 4774 22 frog frog NN 40404 4774 23 when when WRB 40404 4774 24 it -PRON- PRP 40404 4774 25 passes pass VBZ 40404 4774 26 from from IN 40404 4774 27 the the DT 40404 4774 28 tadpole tadpole JJ 40404 4774 29 stage stage NN 40404 4774 30 . . . 40404 4775 1 Yet yet CC 40404 4775 2 in in IN 40404 4775 3 advancing advance VBG 40404 4775 4 from from IN 40404 4775 5 the the DT 40404 4775 6 amphibian amphibian NN 40404 4775 7 to to IN 40404 4775 8 the the DT 40404 4775 9 reptile reptile NN 40404 4775 10 the the DT 40404 4775 11 evolution evolution NN 40404 4775 12 of of IN 40404 4775 13 the the DT 40404 4775 14 vertebrate vertebrate NN 40404 4775 15 was be VBD 40404 4775 16 far far RB 40404 4775 17 from from IN 40404 4775 18 finished finish VBN 40404 4775 19 . . . 40404 4776 1 The the DT 40404 4776 2 cold cold JJ 40404 4776 3 - - HYPH 40404 4776 4 blooded blooded JJ 40404 4776 5 , , , 40404 4776 6 clumsy clumsy JJ 40404 4776 7 and and CC 40404 4776 8 sluggish sluggish JJ 40404 4776 9 , , , 40404 4776 10 small small JJ 40404 4776 11 - - HYPH 40404 4776 12 brained brained JJ 40404 4776 13 and and CC 40404 4776 14 unintelligent unintelligent JJ 40404 4776 15 reptile reptile NN 40404 4776 16 is be VBZ 40404 4776 17 as as RB 40404 4776 18 far far RB 40404 4776 19 inferior inferior JJ 40404 4776 20 to to IN 40404 4776 21 the the DT 40404 4776 22 higher high JJR 40404 4776 23 mammals mammal NNS 40404 4776 24 , , , 40404 4776 25 whose whose WP$ 40404 4776 26 day day NN 40404 4776 27 was be VBD 40404 4776 28 still still RB 40404 4776 29 to to TO 40404 4776 30 come come VB 40404 4776 31 , , , 40404 4776 32 as as IN 40404 4776 33 it -PRON- PRP 40404 4776 34 is be VBZ 40404 4776 35 superior superior JJ 40404 4776 36 to to IN 40404 4776 37 the the DT 40404 4776 38 amphibian amphibian NN 40404 4776 39 and and CC 40404 4776 40 the the DT 40404 4776 41 fish fish NN 40404 4776 42 . . . 40404 4777 1 The the DT 40404 4777 2 reptiles reptile NNS 40404 4777 3 of of IN 40404 4777 4 the the DT 40404 4777 5 Permian Permian NNP 40404 4777 6 , , , 40404 4777 7 the the DT 40404 4777 8 earliest early RBS 40404 4777 9 known know VBN 40404 4777 10 , , , 40404 4777 11 were be VBD 40404 4777 12 much much RB 40404 4777 13 like like IN 40404 4777 14 lizards lizard NNS 40404 4777 15 in in IN 40404 4777 16 form form NN 40404 4777 17 of of IN 40404 4777 18 body body NN 40404 4777 19 . . . 40404 4778 1 Constituting constitute VBG 40404 4778 2 a a DT 40404 4778 3 transition transition NN 40404 4778 4 type type NN 40404 4778 5 between between IN 40404 4778 6 the the DT 40404 4778 7 amphibians amphibian NNS 40404 4778 8 on on IN 40404 4778 9 the the DT 40404 4778 10 one one CD 40404 4778 11 hand hand NN 40404 4778 12 , , , 40404 4778 13 and and CC 40404 4778 14 both both CC 40404 4778 15 the the DT 40404 4778 16 higher high JJR 40404 4778 17 reptiles reptile NNS 40404 4778 18 and and CC 40404 4778 19 the the DT 40404 4778 20 mammals mammal NNS 40404 4778 21 on on IN 40404 4778 22 the the DT 40404 4778 23 other other JJ 40404 4778 24 , , , 40404 4778 25 they -PRON- PRP 40404 4778 26 retained retain VBD 40404 4778 27 the the DT 40404 4778 28 archaic archaic NN 40404 4778 29 biconcave biconcave IN 40404 4778 30 vertebra vertebra NNS 40404 4778 31 of of IN 40404 4778 32 the the DT 40404 4778 33 fish fish NN 40404 4778 34 and and CC 40404 4778 35 in in IN 40404 4778 36 some some DT 40404 4778 37 cases case NNS 40404 4778 38 the the DT 40404 4778 39 persistent persistent JJ 40404 4778 40 notochord notochord NN 40404 4778 41 , , , 40404 4778 42 while while IN 40404 4778 43 some some DT 40404 4778 44 of of IN 40404 4778 45 them -PRON- PRP 40404 4778 46 , , , 40404 4778 47 the the DT 40404 4778 48 theromorphs theromorph NNS 40404 4778 49 , , , 40404 4778 50 possessed possess VBD 40404 4778 51 characters character NNS 40404 4778 52 allying ally VBG 40404 4778 53 them -PRON- PRP 40404 4778 54 with with IN 40404 4778 55 mammals mammal NNS 40404 4778 56 . . . 40404 4779 1 In in IN 40404 4779 2 these these DT 40404 4779 3 the the DT 40404 4779 4 skull skull NN 40404 4779 5 was be VBD 40404 4779 6 remarkably remarkably RB 40404 4779 7 similar similar JJ 40404 4779 8 to to IN 40404 4779 9 that that DT 40404 4779 10 of of IN 40404 4779 11 the the DT 40404 4779 12 carnivores carnivore NNS 40404 4779 13 , , , 40404 4779 14 or or CC 40404 4779 15 flesh flesh NN 40404 4779 16 - - HYPH 40404 4779 17 eating eat VBG 40404 4779 18 mammals mammal NNS 40404 4779 19 , , , 40404 4779 20 and and CC 40404 4779 21 the the DT 40404 4779 22 teeth tooth NNS 40404 4779 23 , , , 40404 4779 24 unlike unlike IN 40404 4779 25 the the DT 40404 4779 26 teeth tooth NNS 40404 4779 27 of of IN 40404 4779 28 any any DT 40404 4779 29 later later JJ 40404 4779 30 reptiles reptile NNS 40404 4779 31 , , , 40404 4779 32 were be VBD 40404 4779 33 divisible divisible JJ 40404 4779 34 into into IN 40404 4779 35 incisors incisor NNS 40404 4779 36 , , , 40404 4779 37 canines canine NNS 40404 4779 38 , , , 40404 4779 39 and and CC 40404 4779 40 molars molar NNS 40404 4779 41 , , , 40404 4779 42 as as IN 40404 4779 43 are be VBP 40404 4779 44 the the DT 40404 4779 45 teeth tooth NNS 40404 4779 46 of of IN 40404 4779 47 mammals mammal NNS 40404 4779 48 ( ( -LRB- 40404 4779 49 Fig fig NN 40404 4779 50 . . . 40404 4780 1 328 328 CD 40404 4780 2 ) ) -RRB- 40404 4780 3 . . . 40404 4781 1 [ [ -LRB- 40404 4781 2 Illustration illustration NN 40404 4781 3 : : : 40404 4781 4 Fig Fig NNP 40404 4781 5 . . . 40404 4782 1 328 328 CD 40404 4782 2 . . . 40404 4783 1 Skull Skull NNP 40404 4783 2 of of IN 40404 4783 3 a a DT 40404 4783 4 Permian Permian NNP 40404 4783 5 Theromorph Theromorph NNP 40404 4783 6 ] ] -RRB- 40404 4783 7 At at IN 40404 4783 8 the the DT 40404 4783 9 opening opening NN 40404 4783 10 of of IN 40404 4783 11 the the DT 40404 4783 12 Mesozoic Mesozoic NNP 40404 4783 13 era era NN 40404 4783 14 reptiles reptile NNS 40404 4783 15 were be VBD 40404 4783 16 the the DT 40404 4783 17 most most RBS 40404 4783 18 highly highly RB 40404 4783 19 organized organized JJ 40404 4783 20 and and CC 40404 4783 21 powerful powerful JJ 40404 4783 22 of of IN 40404 4783 23 any any DT 40404 4783 24 animals animal NNS 40404 4783 25 on on IN 40404 4783 26 the the DT 40404 4783 27 earth earth NN 40404 4783 28 . . . 40404 4784 1 New new JJ 40404 4784 2 ranges range NNS 40404 4784 3 of of IN 40404 4784 4 continental continental JJ 40404 4784 5 extent extent NN 40404 4784 6 were be VBD 40404 4784 7 opened open VBN 40404 4784 8 to to IN 40404 4784 9 them -PRON- PRP 40404 4784 10 , , , 40404 4784 11 food food NN 40404 4784 12 was be VBD 40404 4784 13 abundant abundant JJ 40404 4784 14 , , , 40404 4784 15 the the DT 40404 4784 16 climate climate NN 40404 4784 17 was be VBD 40404 4784 18 congenial congenial JJ 40404 4784 19 , , , 40404 4784 20 and and CC 40404 4784 21 they -PRON- PRP 40404 4784 22 now now RB 40404 4784 23 branched branch VBD 40404 4784 24 into into IN 40404 4784 25 very very RB 40404 4784 26 many many JJ 40404 4784 27 diverse diverse JJ 40404 4784 28 types type NNS 40404 4784 29 which which WDT 40404 4784 30 occupied occupy VBD 40404 4784 31 and and CC 40404 4784 32 ruled rule VBD 40404 4784 33 all all PDT 40404 4784 34 fields,--the fields,--the DT 40404 4784 35 land land NN 40404 4784 36 , , , 40404 4784 37 the the DT 40404 4784 38 air air NN 40404 4784 39 , , , 40404 4784 40 and and CC 40404 4784 41 the the DT 40404 4784 42 sea sea NN 40404 4784 43 . . . 40404 4785 1 The the DT 40404 4785 2 Mesozoic Mesozoic NNP 40404 4785 3 was be VBD 40404 4785 4 the the DT 40404 4785 5 Age Age NNP 40404 4785 6 of of IN 40404 4785 7 Reptiles Reptiles NNP 40404 4785 8 . . . 40404 4786 1 = = NFP 40404 4786 2 The the DT 40404 4786 3 ancestry ancestry NN 40404 4786 4 of of IN 40404 4786 5 surviving survive VBG 40404 4786 6 reptilian reptilian JJ 40404 4786 7 types.= types.= CD 40404 4786 8 We -PRON- PRP 40404 4786 9 will will MD 40404 4786 10 consider consider VB 40404 4786 11 first first RB 40404 4786 12 the the DT 40404 4786 13 evolution evolution NN 40404 4786 14 of of IN 40404 4786 15 the the DT 40404 4786 16 few few JJ 40404 4786 17 reptilian reptilian JJ 40404 4786 18 types type NNS 40404 4786 19 which which WDT 40404 4786 20 have have VBP 40404 4786 21 survived survive VBN 40404 4786 22 to to IN 40404 4786 23 the the DT 40404 4786 24 present present NN 40404 4786 25 . . . 40404 4787 1 Crocodiles crocodile NNS 40404 4787 2 , , , 40404 4787 3 the the DT 40404 4787 4 highest high JJS 40404 4787 5 of of IN 40404 4787 6 existing existing JJ 40404 4787 7 reptiles reptile NNS 40404 4787 8 , , , 40404 4787 9 are be VBP 40404 4787 10 a a DT 40404 4787 11 very very RB 40404 4787 12 ancient ancient JJ 40404 4787 13 order order NN 40404 4787 14 , , , 40404 4787 15 dating date VBG 40404 4787 16 back back RB 40404 4787 17 to to IN 40404 4787 18 the the DT 40404 4787 19 lower low JJR 40404 4787 20 Jurassic Jurassic NNP 40404 4787 21 , , , 40404 4787 22 and and CC 40404 4787 23 traceable traceable JJ 40404 4787 24 to to IN 40404 4787 25 earlier early RBR 40404 4787 26 ancestral ancestral JJ 40404 4787 27 , , , 40404 4787 28 generalized generalized JJ 40404 4787 29 forms form NNS 40404 4787 30 , , , 40404 4787 31 from from IN 40404 4787 32 which which WDT 40404 4787 33 sprang spring VBD 40404 4787 34 several several JJ 40404 4787 35 other other JJ 40404 4787 36 orders order NNS 40404 4787 37 also also RB 40404 4787 38 . . . 40404 4788 1 Turtles turtle NNS 40404 4788 2 and and CC 40404 4788 3 tortoises tortoise NNS 40404 4788 4 are be VBP 40404 4788 5 not not RB 40404 4788 6 found find VBN 40404 4788 7 until until IN 40404 4788 8 the the DT 40404 4788 9 early early JJ 40404 4788 10 Jurassic Jurassic NNP 40404 4788 11 , , , 40404 4788 12 when when WRB 40404 4788 13 they -PRON- PRP 40404 4788 14 already already RB 40404 4788 15 possessed possess VBD 40404 4788 16 the the DT 40404 4788 17 peculiar peculiar JJ 40404 4788 18 characteristics characteristic NNS 40404 4788 19 which which WDT 40404 4788 20 set set VBD 40404 4788 21 them -PRON- PRP 40404 4788 22 off off RP 40404 4788 23 so so RB 40404 4788 24 sharply sharply RB 40404 4788 25 from from IN 40404 4788 26 other other JJ 40404 4788 27 reptiles reptile NNS 40404 4788 28 . . . 40404 4789 1 They -PRON- PRP 40404 4789 2 seem seem VBP 40404 4789 3 to to TO 40404 4789 4 have have VB 40404 4789 5 lived live VBN 40404 4789 6 at at IN 40404 4789 7 first first RB 40404 4789 8 in in IN 40404 4789 9 shallow shallow JJ 40404 4789 10 water water NN 40404 4789 11 and and CC 40404 4789 12 in in IN 40404 4789 13 swamps swamp NNS 40404 4789 14 , , , 40404 4789 15 and and CC 40404 4789 16 it -PRON- PRP 40404 4789 17 is be VBZ 40404 4789 18 not not RB 40404 4789 19 until until IN 40404 4789 20 after after IN 40404 4789 21 the the DT 40404 4789 22 end end NN 40404 4789 23 of of IN 40404 4789 24 the the DT 40404 4789 25 Mesozoic Mesozoic NNP 40404 4789 26 that that IN 40404 4789 27 some some DT 40404 4789 28 of of IN 40404 4789 29 the the DT 40404 4789 30 order order NN 40404 4789 31 became become VBD 40404 4789 32 adapted adapt VBN 40404 4789 33 to to IN 40404 4789 34 life life NN 40404 4789 35 on on IN 40404 4789 36 the the DT 40404 4789 37 land land NN 40404 4789 38 . . . 40404 4790 1 The the DT 40404 4790 2 largest large JJS 40404 4790 3 of of IN 40404 4790 4 all all DT 40404 4790 5 known know VBN 40404 4790 6 turtles turtle NNS 40404 4790 7 , , , 40404 4790 8 _ _ NNP 40404 4790 9 Archelon Archelon NNP 40404 4790 10 _ _ NNP 40404 4790 11 , , , 40404 4790 12 whose whose WP$ 40404 4790 13 home home NN 40404 4790 14 was be VBD 40404 4790 15 the the DT 40404 4790 16 great great JJ 40404 4790 17 interior interior JJ 40404 4790 18 Cretaceous Cretaceous NNP 40404 4790 19 sea sea NN 40404 4790 20 , , , 40404 4790 21 was be VBD 40404 4790 22 fully fully RB 40404 4790 23 a a DT 40404 4790 24 dozen dozen NN 40404 4790 25 feet foot NNS 40404 4790 26 in in IN 40404 4790 27 length length NN 40404 4790 28 and and CC 40404 4790 29 must must MD 40404 4790 30 have have VB 40404 4790 31 weighed weigh VBN 40404 4790 32 at at RB 40404 4790 33 least least RBS 40404 4790 34 two two CD 40404 4790 35 tons ton NNS 40404 4790 36 . . . 40404 4791 1 The the DT 40404 4791 2 skull skull NN 40404 4791 3 alone alone RB 40404 4791 4 is be VBZ 40404 4791 5 a a DT 40404 4791 6 yard yard NN 40404 4791 7 long long JJ 40404 4791 8 . . . 40404 4792 1 Lizards lizard NNS 40404 4792 2 and and CC 40404 4792 3 snakes snake NNS 40404 4792 4 do do VBP 40404 4792 5 not not RB 40404 4792 6 appear appear VB 40404 4792 7 until until IN 40404 4792 8 after after IN 40404 4792 9 the the DT 40404 4792 10 close close NN 40404 4792 11 of of IN 40404 4792 12 the the DT 40404 4792 13 Mesozoic Mesozoic NNP 40404 4792 14 , , , 40404 4792 15 although although IN 40404 4792 16 their -PRON- PRP$ 40404 4792 17 ancestral ancestral JJ 40404 4792 18 lines line NNS 40404 4792 19 may may MD 40404 4792 20 be be VB 40404 4792 21 followed follow VBN 40404 4792 22 back back RB 40404 4792 23 into into IN 40404 4792 24 the the DT 40404 4792 25 Cretaceous Cretaceous NNP 40404 4792 26 . . . 40404 4793 1 We -PRON- PRP 40404 4793 2 will will MD 40404 4793 3 now now RB 40404 4793 4 describe describe VB 40404 4793 5 some some DT 40404 4793 6 of of IN 40404 4793 7 the the DT 40404 4793 8 highly highly RB 40404 4793 9 specialized specialized JJ 40404 4793 10 orders order NNS 40404 4793 11 peculiar peculiar JJ 40404 4793 12 to to IN 40404 4793 13 the the DT 40404 4793 14 Mesozoic Mesozoic NNP 40404 4793 15 . . . 40404 4794 1 = = NFP 40404 4794 2 Land land NN 40404 4794 3 reptiles.= reptiles.= NNP 40404 4794 4 The the DT 40404 4794 5 _ _ NNP 40404 4794 6 dinosaurs dinosaur NNS 40404 4794 7 _ _ NNP 40404 4794 8 ( ( -LRB- 40404 4794 9 terrible terrible JJ 40404 4794 10 reptiles reptile NNS 40404 4794 11 ) ) -RRB- 40404 4794 12 are be VBP 40404 4794 13 an an DT 40404 4794 14 extremely extremely RB 40404 4794 15 varied varied JJ 40404 4794 16 order order NN 40404 4794 17 which which WDT 40404 4794 18 were be VBD 40404 4794 19 masters master NNS 40404 4794 20 of of IN 40404 4794 21 the the DT 40404 4794 22 land land NN 40404 4794 23 from from IN 40404 4794 24 the the DT 40404 4794 25 late late JJ 40404 4794 26 Trias tria NNS 40404 4794 27 until until IN 40404 4794 28 the the DT 40404 4794 29 close close NN 40404 4794 30 of of IN 40404 4794 31 the the DT 40404 4794 32 Mesozoic Mesozoic NNP 40404 4794 33 era era NN 40404 4794 34 . . . 40404 4795 1 Some some DT 40404 4795 2 were be VBD 40404 4795 3 far far RB 40404 4795 4 larger large JJR 40404 4795 5 than than IN 40404 4795 6 elephants elephant NNS 40404 4795 7 , , , 40404 4795 8 some some DT 40404 4795 9 were be VBD 40404 4795 10 as as RB 40404 4795 11 small small JJ 40404 4795 12 as as IN 40404 4795 13 cats cat NNS 40404 4795 14 ; ; : 40404 4795 15 some some DT 40404 4795 16 walked walk VBD 40404 4795 17 on on IN 40404 4795 18 all all DT 40404 4795 19 fours four NNS 40404 4795 20 , , , 40404 4795 21 some some DT 40404 4795 22 were be VBD 40404 4795 23 bipedal bipedal JJ 40404 4795 24 ; ; : 40404 4795 25 some some DT 40404 4795 26 fed fed NNP 40404 4795 27 on on IN 40404 4795 28 the the DT 40404 4795 29 luxuriant luxuriant JJ 40404 4795 30 tropical tropical JJ 40404 4795 31 foliage foliage NN 40404 4795 32 , , , 40404 4795 33 and and CC 40404 4795 34 others other NNS 40404 4795 35 on on IN 40404 4795 36 the the DT 40404 4795 37 flesh flesh NN 40404 4795 38 of of IN 40404 4795 39 weaker weak JJR 40404 4795 40 reptiles reptile NNS 40404 4795 41 . . . 40404 4796 1 They -PRON- PRP 40404 4796 2 may may MD 40404 4796 3 be be VB 40404 4796 4 classed class VBN 40404 4796 5 in in IN 40404 4796 6 three three CD 40404 4796 7 divisions,--the divisions,--the DT 40404 4796 8 _ _ NNP 40404 4796 9 flesh flesh NN 40404 4796 10 - - HYPH 40404 4796 11 eating eat VBG 40404 4796 12 dinosaurs dinosaur NNS 40404 4796 13 _ _ NNP 40404 4796 14 , , , 40404 4796 15 the the DT 40404 4796 16 _ _ NNP 40404 4796 17 reptile reptile NN 40404 4796 18 - - HYPH 40404 4796 19 footed footed JJ 40404 4796 20 dinosaurs dinosaur NNS 40404 4796 21 _ _ NNP 40404 4796 22 , , , 40404 4796 23 and and CC 40404 4796 24 the the DT 40404 4796 25 _ _ NNP 40404 4796 26 beaked beak VBD 40404 4796 27 dinosaurs_,--the dinosaurs_,--the DT 40404 4796 28 latter latter JJ 40404 4796 29 two two CD 40404 4796 30 divisions division NNS 40404 4796 31 being be VBG 40404 4796 32 herbivorous herbivorous JJ 40404 4796 33 . . . 40404 4797 1 The the DT 40404 4797 2 _ _ NNP 40404 4797 3 flesh flesh NN 40404 4797 4 - - HYPH 40404 4797 5 eating eat VBG 40404 4797 6 dinosaurs dinosaur NNS 40404 4797 7 _ _ NNP 40404 4797 8 are be VBP 40404 4797 9 the the DT 40404 4797 10 oldest old JJS 40404 4797 11 known know VBN 40404 4797 12 division division NN 40404 4797 13 of of IN 40404 4797 14 the the DT 40404 4797 15 order order NN 40404 4797 16 , , , 40404 4797 17 and and CC 40404 4797 18 their -PRON- PRP$ 40404 4797 19 characteristics characteristic NNS 40404 4797 20 are be VBP 40404 4797 21 shown show VBN 40404 4797 22 in in IN 40404 4797 23 Figure Figure NNP 40404 4797 24 329 329 CD 40404 4797 25 . . . 40404 4798 1 As as IN 40404 4798 2 a a DT 40404 4798 3 class class NN 40404 4798 4 , , , 40404 4798 5 reptiles reptile NNS 40404 4798 6 are be VBP 40404 4798 7 egg egg NN 40404 4798 8 layers layer NNS 40404 4798 9 ( ( -LRB- 40404 4798 10 _ _ NNP 40404 4798 11 oviparous oviparous JJ 40404 4798 12 _ _ NNP 40404 4798 13 ) ) -RRB- 40404 4798 14 ; ; : 40404 4798 15 but but CC 40404 4798 16 some some DT 40404 4798 17 of of IN 40404 4798 18 the the DT 40404 4798 19 flesh flesh NN 40404 4798 20 - - HYPH 40404 4798 21 eating eat VBG 40404 4798 22 dinosaurs dinosaur NNS 40404 4798 23 are be VBP 40404 4798 24 known know VBN 40404 4798 25 to to TO 40404 4798 26 have have VB 40404 4798 27 been be VBN 40404 4798 28 _ _ NNP 40404 4798 29 viviparous viviparous JJ 40404 4798 30 _ _ NNP 40404 4798 31 , , , 40404 4798 32 i.e. i.e. FW 40404 4799 1 to to TO 40404 4799 2 have have VB 40404 4799 3 brought bring VBN 40404 4799 4 forth forth RB 40404 4799 5 their -PRON- PRP$ 40404 4799 6 young young JJ 40404 4799 7 alive alive NN 40404 4799 8 . . . 40404 4800 1 This this DT 40404 4800 2 group group NN 40404 4800 3 was be VBD 40404 4800 4 the the DT 40404 4800 5 longest long RBS 40404 4800 6 - - HYPH 40404 4800 7 lived live VBN 40404 4800 8 of of IN 40404 4800 9 any any DT 40404 4800 10 of of IN 40404 4800 11 the the DT 40404 4800 12 three three CD 40404 4800 13 , , , 40404 4800 14 beginning begin VBG 40404 4800 15 in in IN 40404 4800 16 the the DT 40404 4800 17 Trias Trias NNP 40404 4800 18 and and CC 40404 4800 19 continuing continue VBG 40404 4800 20 to to IN 40404 4800 21 the the DT 40404 4800 22 close close NN 40404 4800 23 of of IN 40404 4800 24 the the DT 40404 4800 25 Mesozoic Mesozoic NNP 40404 4800 26 era era NN 40404 4800 27 . . . 40404 4801 1 [ [ -LRB- 40404 4801 2 Illustration illustration NN 40404 4801 3 : : : 40404 4801 4 Fig Fig NNP 40404 4801 5 . . . 40404 4802 1 329 329 CD 40404 4802 2 . . . 40404 4803 1 Ceratosaurus Ceratosaurus NNP 40404 4803 2 ] ] -RRB- 40404 4803 3 Contrast contrast VB 40404 4803 4 the the DT 40404 4803 5 small small JJ 40404 4803 6 fore fore NN 40404 4803 7 limbs limb NNS 40404 4803 8 , , , 40404 4803 9 used use VBN 40404 4803 10 only only RB 40404 4803 11 for for IN 40404 4803 12 grasping grasping NN 40404 4803 13 , , , 40404 4803 14 with with IN 40404 4803 15 the the DT 40404 4803 16 powerful powerful JJ 40404 4803 17 hind hind NN 40404 4803 18 limbs limb NNS 40404 4803 19 on on IN 40404 4803 20 which which WDT 40404 4803 21 the the DT 40404 4803 22 animal animal NN 40404 4803 23 stalked stalk VBD 40404 4803 24 about about IN 40404 4803 25 . . . 40404 4804 1 Some some DT 40404 4804 2 of of IN 40404 4804 3 the the DT 40404 4804 4 species specie NNS 40404 4804 5 of of IN 40404 4804 6 this this DT 40404 4804 7 group group NN 40404 4804 8 seem seem VBP 40404 4804 9 to to TO 40404 4804 10 have have VB 40404 4804 11 been be VBN 40404 4804 12 able able JJ 40404 4804 13 to to TO 40404 4804 14 progress progress VB 40404 4804 15 by by IN 40404 4804 16 leaping leap VBG 40404 4804 17 in in IN 40404 4804 18 kangaroo kangaroo NNP 40404 4804 19 fashion fashion NNP 40404 4804 20 . . . 40404 4805 1 Notice notice VB 40404 4805 2 the the DT 40404 4805 3 sharp sharp JJ 40404 4805 4 claws claws NN 40404 4805 5 , , , 40404 4805 6 the the DT 40404 4805 7 ponderous ponderous JJ 40404 4805 8 tail tail NN 40404 4805 9 , , , 40404 4805 10 and and CC 40404 4805 11 the the DT 40404 4805 12 skull skull NN 40404 4805 13 set set VBD 40404 4805 14 at at IN 40404 4805 15 right right JJ 40404 4805 16 angles angle NNS 40404 4805 17 with with IN 40404 4805 18 the the DT 40404 4805 19 spinal spinal JJ 40404 4805 20 column column NN 40404 4805 21 . . . 40404 4806 1 The the DT 40404 4806 2 limb limb NN 40404 4806 3 bones bone NNS 40404 4806 4 are be VBP 40404 4806 5 hollow hollow JJ 40404 4806 6 . . . 40404 4807 1 The the DT 40404 4807 2 ceratosaurs ceratosaur NNS 40404 4807 3 reached reach VBD 40404 4807 4 a a DT 40404 4807 5 length length NN 40404 4807 6 of of IN 40404 4807 7 some some DT 40404 4807 8 fifteen fifteen CD 40404 4807 9 feet foot NNS 40404 4807 10 , , , 40404 4807 11 and and CC 40404 4807 12 were be VBD 40404 4807 13 not not RB 40404 4807 14 uncommon uncommon JJ 40404 4807 15 in in IN 40404 4807 16 Colorado Colorado NNP 40404 4807 17 and and CC 40404 4807 18 the the DT 40404 4807 19 western western JJ 40404 4807 20 lands land NNS 40404 4807 21 in in IN 40404 4807 22 Jurassic Jurassic NNP 40404 4807 23 times time NNS 40404 4807 24 . . . 40404 4808 1 [ [ -LRB- 40404 4808 2 Illustration illustration NN 40404 4808 3 : : : 40404 4808 4 Fig Fig NNP 40404 4808 5 . . . 40404 4809 1 330 330 CD 40404 4809 2 . . . 40404 4810 1 Diplodocus Diplodocus NNP 40404 4810 2 ] ] -RRB- 40404 4810 3 The the DT 40404 4810 4 _ _ NNP 40404 4810 5 reptile reptile NN 40404 4810 6 - - HYPH 40404 4810 7 footed foot VBN 40404 4810 8 dinosaurs dinosaur NNS 40404 4810 9 _ _ NNP 40404 4810 10 ( ( -LRB- 40404 4810 11 Sauropoda Sauropoda NNP 40404 4810 12 ) ) -RRB- 40404 4810 13 include include VBP 40404 4810 14 some some DT 40404 4810 15 of of IN 40404 4810 16 the the DT 40404 4810 17 biggest big JJS 40404 4810 18 brutes brute NNS 40404 4810 19 which which WDT 40404 4810 20 ever ever RB 40404 4810 21 trod tread VBZ 40404 4810 22 the the DT 40404 4810 23 ground ground NN 40404 4810 24 . . . 40404 4811 1 One one CD 40404 4811 2 of of IN 40404 4811 3 the the DT 40404 4811 4 largest large JJS 40404 4811 5 , , , 40404 4811 6 whose whose WP$ 40404 4811 7 remains remain NNS 40404 4811 8 are be VBP 40404 4811 9 found find VBN 40404 4811 10 entombed entomb VBN 40404 4811 11 in in IN 40404 4811 12 the the DT 40404 4811 13 Jurassic Jurassic NNP 40404 4811 14 rocks rock NNS 40404 4811 15 of of IN 40404 4811 16 Wyoming Wyoming NNP 40404 4811 17 and and CC 40404 4811 18 Colorado Colorado NNP 40404 4811 19 , , , 40404 4811 20 is be VBZ 40404 4811 21 shown show VBN 40404 4811 22 in in IN 40404 4811 23 Figure Figure NNP 40404 4811 24 330 330 CD 40404 4811 25 . . . 40404 4812 1 Note note VB 40404 4812 2 the the DT 40404 4812 3 five five CD 40404 4812 4 digits digit NNS 40404 4812 5 on on IN 40404 4812 6 the the DT 40404 4812 7 hind hind JJ 40404 4812 8 feet foot NNS 40404 4812 9 , , , 40404 4812 10 the the DT 40404 4812 11 quadrupedal quadrupedal JJ 40404 4812 12 gait gait NN 40404 4812 13 , , , 40404 4812 14 the the DT 40404 4812 15 enormous enormous JJ 40404 4812 16 stretch stretch NN 40404 4812 17 of of IN 40404 4812 18 neck neck NN 40404 4812 19 and and CC 40404 4812 20 tail tail NN 40404 4812 21 , , , 40404 4812 22 the the DT 40404 4812 23 small small JJ 40404 4812 24 head head NN 40404 4812 25 aligned align VBN 40404 4812 26 with with IN 40404 4812 27 the the DT 40404 4812 28 vertebral vertebral JJ 40404 4812 29 column column NN 40404 4812 30 . . . 40404 4813 1 Diplodocus Diplodocus NNP 40404 4813 2 was be VBD 40404 4813 3 fully fully RB 40404 4813 4 sixty sixty CD 40404 4813 5 - - HYPH 40404 4813 6 five five CD 40404 4813 7 feet foot NNS 40404 4813 8 long long JJ 40404 4813 9 and and CC 40404 4813 10 must must MD 40404 4813 11 have have VB 40404 4813 12 weighed weigh VBN 40404 4813 13 about about RB 40404 4813 14 twenty twenty CD 40404 4813 15 tons ton NNS 40404 4813 16 . . . 40404 4814 1 The the DT 40404 4814 2 thigh thigh NN 40404 4814 3 bones bone NNS 40404 4814 4 of of IN 40404 4814 5 the the DT 40404 4814 6 Sauropoda Sauropoda NNP 40404 4814 7 are be VBP 40404 4814 8 the the DT 40404 4814 9 largest large JJS 40404 4814 10 bones bone NNS 40404 4814 11 which which WDT 40404 4814 12 ever ever RB 40404 4814 13 grew grow VBD 40404 4814 14 . . . 40404 4815 1 That that DT 40404 4815 2 of of IN 40404 4815 3 a a DT 40404 4815 4 genus genus NN 40404 4815 5 allied ally VBN 40404 4815 6 to to IN 40404 4815 7 the the DT 40404 4815 8 Diplodocus Diplodocus NNP 40404 4815 9 measures measure VBZ 40404 4815 10 six six CD 40404 4815 11 feet foot NNS 40404 4815 12 and and CC 40404 4815 13 eight eight CD 40404 4815 14 inches inch NNS 40404 4815 15 , , , 40404 4815 16 and and CC 40404 4815 17 the the DT 40404 4815 18 total total JJ 40404 4815 19 length length NN 40404 4815 20 of of IN 40404 4815 21 the the DT 40404 4815 22 animal animal NN 40404 4815 23 must must MD 40404 4815 24 have have VB 40404 4815 25 been be VBN 40404 4815 26 not not RB 40404 4815 27 far far RB 40404 4815 28 from from IN 40404 4815 29 eighty eighty CD 40404 4815 30 feet foot NNS 40404 4815 31 , , , 40404 4815 32 the the DT 40404 4815 33 largest large JJS 40404 4815 34 land land NN 40404 4815 35 animal animal NN 40404 4815 36 known know VBN 40404 4815 37 . . . 40404 4816 1 The the DT 40404 4816 2 Sauropoda Sauropoda NNP 40404 4816 3 became become VBD 40404 4816 4 extinct extinct JJ 40404 4816 5 when when WRB 40404 4816 6 their -PRON- PRP$ 40404 4816 7 haunts haunt NNS 40404 4816 8 along along IN 40404 4816 9 the the DT 40404 4816 10 rivers river NNS 40404 4816 11 and and CC 40404 4816 12 lakes lake NNS 40404 4816 13 of of IN 40404 4816 14 the the DT 40404 4816 15 western western JJ 40404 4816 16 plains plain NNS 40404 4816 17 of of IN 40404 4816 18 Jurassic Jurassic NNP 40404 4816 19 times time NNS 40404 4816 20 were be VBD 40404 4816 21 invaded invade VBN 40404 4816 22 by by IN 40404 4816 23 the the DT 40404 4816 24 Cretaceous cretaceous JJ 40404 4816 25 interior interior JJ 40404 4816 26 sea sea NN 40404 4816 27 . . . 40404 4817 1 The the DT 40404 4817 2 _ _ NNP 40404 4817 3 beaked beak VBD 40404 4817 4 dinosaurs dinosaur NNS 40404 4817 5 _ _ NNP 40404 4817 6 ( ( -LRB- 40404 4817 7 Predentata Predentata NNP 40404 4817 8 ) ) -RRB- 40404 4817 9 were be VBD 40404 4817 10 distinguished distinguish VBN 40404 4817 11 by by IN 40404 4817 12 a a DT 40404 4817 13 beak beak NN 40404 4817 14 sheathed sheathe VBN 40404 4817 15 with with IN 40404 4817 16 horn horn NN 40404 4817 17 carried carry VBN 40404 4817 18 in in IN 40404 4817 19 front front NN 40404 4817 20 of of IN 40404 4817 21 the the DT 40404 4817 22 tooth tooth JJ 40404 4817 23 - - HYPH 40404 4817 24 set set VBN 40404 4817 25 jaw jaw NN 40404 4817 26 , , , 40404 4817 27 and and CC 40404 4817 28 used use VBD 40404 4817 29 , , , 40404 4817 30 we -PRON- PRP 40404 4817 31 may may MD 40404 4817 32 imagine imagine VB 40404 4817 33 , , , 40404 4817 34 in in IN 40404 4817 35 stripping strip VBG 40404 4817 36 the the DT 40404 4817 37 leaves leave NNS 40404 4817 38 and and CC 40404 4817 39 twigs twig NNS 40404 4817 40 of of IN 40404 4817 41 trees tree NNS 40404 4817 42 and and CC 40404 4817 43 shrubs shrub NNS 40404 4817 44 . . . 40404 4818 1 We -PRON- PRP 40404 4818 2 may may MD 40404 4818 3 notice notice VB 40404 4818 4 only only RB 40404 4818 5 two two CD 40404 4818 6 of of IN 40404 4818 7 the the DT 40404 4818 8 most most RBS 40404 4818 9 interesting interesting JJ 40404 4818 10 types type NNS 40404 4818 11 . . . 40404 4819 1 [ [ -LRB- 40404 4819 2 Illustration illustration NN 40404 4819 3 : : : 40404 4819 4 Fig Fig NNP 40404 4819 5 . . . 40404 4820 1 331 331 CD 40404 4820 2 . . . 40404 4821 1 Stegosaurus Stegosaurus NNP 40404 4821 2 ] ] -RRB- 40404 4821 3 _ _ NNP 40404 4821 4 Stegosaurus Stegosaurus NNP 40404 4821 5 _ _ NNP 40404 4821 6 ( ( -LRB- 40404 4821 7 plated plate VBN 40404 4821 8 reptile reptile NN 40404 4821 9 ) ) -RRB- 40404 4821 10 takes take VBZ 40404 4821 11 its -PRON- PRP$ 40404 4821 12 name name NN 40404 4821 13 from from IN 40404 4821 14 the the DT 40404 4821 15 double double JJ 40404 4821 16 row row NN 40404 4821 17 of of IN 40404 4821 18 bony bony NN 40404 4821 19 plates plate NNS 40404 4821 20 arranged arrange VBD 40404 4821 21 along along IN 40404 4821 22 its -PRON- PRP$ 40404 4821 23 back back NN 40404 4821 24 . . . 40404 4822 1 The the DT 40404 4822 2 powerful powerful JJ 40404 4822 3 tail tail NN 40404 4822 4 was be VBD 40404 4822 5 armed arm VBN 40404 4822 6 with with IN 40404 4822 7 long long JJ 40404 4822 8 spines spine NNS 40404 4822 9 , , , 40404 4822 10 and and CC 40404 4822 11 the the DT 40404 4822 12 thick thick JJ 40404 4822 13 skin skin NN 40404 4822 14 was be VBD 40404 4822 15 defended defend VBN 40404 4822 16 with with IN 40404 4822 17 irregular irregular JJ 40404 4822 18 bits bit NNS 40404 4822 19 of of IN 40404 4822 20 bone bone NN 40404 4822 21 implanted implant VBN 40404 4822 22 in in IN 40404 4822 23 it -PRON- PRP 40404 4822 24 . . . 40404 4823 1 The the DT 40404 4823 2 brain brain NN 40404 4823 3 of of IN 40404 4823 4 the the DT 40404 4823 5 stegosaur stegosaur NN 40404 4823 6 was be VBD 40404 4823 7 smaller small JJR 40404 4823 8 than than IN 40404 4823 9 that that DT 40404 4823 10 of of IN 40404 4823 11 any any DT 40404 4823 12 land land NN 40404 4823 13 vertebrate vertebrate NN 40404 4823 14 , , , 40404 4823 15 while while IN 40404 4823 16 in in IN 40404 4823 17 the the DT 40404 4823 18 sacrum sacrum NN 40404 4823 19 the the DT 40404 4823 20 nerve nerve NNP 40404 4823 21 canal canal NN 40404 4823 22 was be VBD 40404 4823 23 enlarged enlarge VBN 40404 4823 24 to to IN 40404 4823 25 ten ten CD 40404 4823 26 times time NNS 40404 4823 27 the the DT 40404 4823 28 capacity capacity NN 40404 4823 29 of of IN 40404 4823 30 the the DT 40404 4823 31 brain brain NN 40404 4823 32 cavity cavity NN 40404 4823 33 of of IN 40404 4823 34 the the DT 40404 4823 35 skull skull NN 40404 4823 36 . . . 40404 4824 1 Despite despite IN 40404 4824 2 their -PRON- PRP$ 40404 4824 3 feeble feeble JJ 40404 4824 4 wits wit NNS 40404 4824 5 , , , 40404 4824 6 this this DT 40404 4824 7 well well RB 40404 4824 8 - - HYPH 40404 4824 9 armored armor VBN 40404 4824 10 family family NN 40404 4824 11 lived live VBD 40404 4824 12 on on IN 40404 4824 13 through through IN 40404 4824 14 millions million NNS 40404 4824 15 of of IN 40404 4824 16 years year NNS 40404 4824 17 which which WDT 40404 4824 18 intervened intervene VBD 40404 4824 19 between between IN 40404 4824 20 their -PRON- PRP$ 40404 4824 21 appearance appearance NN 40404 4824 22 , , , 40404 4824 23 at at IN 40404 4824 24 the the DT 40404 4824 25 opening opening NN 40404 4824 26 of of IN 40404 4824 27 the the DT 40404 4824 28 Jurassic Jurassic NNP 40404 4824 29 , , , 40404 4824 30 and and CC 40404 4824 31 the the DT 40404 4824 32 close close NN 40404 4824 33 of of IN 40404 4824 34 the the DT 40404 4824 35 Cretaceous cretaceous JJ 40404 4824 36 , , , 40404 4824 37 when when WRB 40404 4824 38 they -PRON- PRP 40404 4824 39 became become VBD 40404 4824 40 extinct extinct JJ 40404 4824 41 . . . 40404 4825 1 A a DT 40404 4825 2 less less RBR 40404 4825 3 stupid stupid JJ 40404 4825 4 brute brute NN 40404 4825 5 than than IN 40404 4825 6 the the DT 40404 4825 7 stegosaur stegosaur NN 40404 4825 8 was be VBD 40404 4825 9 _ _ NNP 40404 4825 10 Triceratops Triceratops NNP 40404 4825 11 _ _ NNP 40404 4825 12 , , , 40404 4825 13 the the DT 40404 4825 14 dinosaur dinosaur NN 40404 4825 15 of of IN 40404 4825 16 the the DT 40404 4825 17 three three CD 40404 4825 18 horns,--one horns,--one NNP 40404 4825 19 horn horn NN 40404 4825 20 carried carry VBD 40404 4825 21 on on IN 40404 4825 22 the the DT 40404 4825 23 nose nose NN 40404 4825 24 , , , 40404 4825 25 and and CC 40404 4825 26 a a DT 40404 4825 27 massive massive JJ 40404 4825 28 pair pair NN 40404 4825 29 set set VBN 40404 4825 30 over over IN 40404 4825 31 the the DT 40404 4825 32 eyes eye NNS 40404 4825 33 ( ( -LRB- 40404 4825 34 Fig fig NN 40404 4825 35 . . . 40404 4826 1 332 332 CD 40404 4826 2 ) ) -RRB- 40404 4826 3 . . . 40404 4827 1 Note note VB 40404 4827 2 the the DT 40404 4827 3 enormous enormous JJ 40404 4827 4 wedge wedge NN 40404 4827 5 - - HYPH 40404 4827 6 shaped shape VBN 40404 4827 7 skull skull NN 40404 4827 8 , , , 40404 4827 9 with with IN 40404 4827 10 its -PRON- PRP$ 40404 4827 11 sharp sharp JJ 40404 4827 12 beak beak NN 40404 4827 13 , , , 40404 4827 14 and and CC 40404 4827 15 the the DT 40404 4827 16 hood hood NN 40404 4827 17 behind behind IN 40404 4827 18 resembling resemble VBG 40404 4827 19 a a DT 40404 4827 20 fireman fireman NN 40404 4827 21 's 's POS 40404 4827 22 helmet helmet NN 40404 4827 23 . . . 40404 4828 1 Triceratops triceratop NNS 40404 4828 2 was be VBD 40404 4828 3 fully fully RB 40404 4828 4 twenty twenty CD 40404 4828 5 - - HYPH 40404 4828 6 five five CD 40404 4828 7 feet foot NNS 40404 4828 8 long long JJ 40404 4828 9 , , , 40404 4828 10 and and CC 40404 4828 11 of of IN 40404 4828 12 twice twice PDT 40404 4828 13 the the DT 40404 4828 14 bulk bulk NN 40404 4828 15 of of IN 40404 4828 16 an an DT 40404 4828 17 elephant elephant NN 40404 4828 18 . . . 40404 4829 1 The the DT 40404 4829 2 family family NN 40404 4829 3 appeared appear VBD 40404 4829 4 in in IN 40404 4829 5 the the DT 40404 4829 6 Upper Upper NNP 40404 4829 7 Cretaceous Cretaceous NNP 40404 4829 8 and and CC 40404 4829 9 became become VBD 40404 4829 10 extinct extinct JJ 40404 4829 11 at at IN 40404 4829 12 its -PRON- PRP$ 40404 4829 13 close close NN 40404 4829 14 . . . 40404 4830 1 Their -PRON- PRP$ 40404 4830 2 bones bone NNS 40404 4830 3 are be VBP 40404 4830 4 found find VBN 40404 4830 5 buried bury VBN 40404 4830 6 in in IN 40404 4830 7 the the DT 40404 4830 8 fresh fresh JJ 40404 4830 9 - - HYPH 40404 4830 10 water water NN 40404 4830 11 deposits deposit NNS 40404 4830 12 of of IN 40404 4830 13 the the DT 40404 4830 14 time time NN 40404 4830 15 from from IN 40404 4830 16 Colorado Colorado NNP 40404 4830 17 to to IN 40404 4830 18 Montana Montana NNP 40404 4830 19 and and CC 40404 4830 20 eastward eastward RB 40404 4830 21 to to IN 40404 4830 22 the the DT 40404 4830 23 Dakotas Dakotas NNP 40404 4830 24 . . . 40404 4831 1 [ [ -LRB- 40404 4831 2 Illustration illustration NN 40404 4831 3 : : : 40404 4831 4 Fig Fig NNP 40404 4831 5 . . . 40404 4832 1 332 332 CD 40404 4832 2 . . . 40404 4833 1 Restoration restoration NN 40404 4833 2 of of IN 40404 4833 3 Triceratops Triceratops NNPS 40404 4833 4 By by IN 40404 4833 5 courtesy courtesy NN 40404 4833 6 of of IN 40404 4833 7 the the DT 40404 4833 8 American American NNP 40404 4833 9 Museum Museum NNP 40404 4833 10 of of IN 40404 4833 11 Natural Natural NNP 40404 4833 12 History History NNP 40404 4833 13 ] ] -RRB- 40404 4833 14 = = NFP 40404 4833 15 Marine Marine NNP 40404 4833 16 reptiles.= reptiles.= NNP 40404 4833 17 In in IN 40404 4833 18 the the DT 40404 4833 19 ocean ocean NN 40404 4833 20 , , , 40404 4833 21 reptiles reptile NNS 40404 4833 22 occupied occupy VBD 40404 4833 23 the the DT 40404 4833 24 place place NN 40404 4833 25 now now RB 40404 4833 26 held hold VBN 40404 4833 27 by by IN 40404 4833 28 the the DT 40404 4833 29 aquatic aquatic JJ 40404 4833 30 mammals mammal NNS 40404 4833 31 , , , 40404 4833 32 such such JJ 40404 4833 33 as as IN 40404 4833 34 whales whale NNS 40404 4833 35 and and CC 40404 4833 36 dolphins dolphin NNS 40404 4833 37 , , , 40404 4833 38 and and CC 40404 4833 39 their -PRON- PRP$ 40404 4833 40 form form NN 40404 4833 41 and and CC 40404 4833 42 structure structure NN 40404 4833 43 were be VBD 40404 4833 44 similarly similarly RB 40404 4833 45 modified modify VBN 40404 4833 46 to to TO 40404 4833 47 suit suit VB 40404 4833 48 their -PRON- PRP$ 40404 4833 49 environment environment NN 40404 4833 50 . . . 40404 4834 1 In in IN 40404 4834 2 the the DT 40404 4834 3 Ichthyosaurus Ichthyosaurus NNP 40404 4834 4 ( ( -LRB- 40404 4834 5 fish fish NN 40404 4834 6 reptile reptile NN 40404 4834 7 ) ) -RRB- 40404 4834 8 , , , 40404 4834 9 for for IN 40404 4834 10 example example NN 40404 4834 11 , , , 40404 4834 12 the the DT 40404 4834 13 body body NN 40404 4834 14 was be VBD 40404 4834 15 fishlike fishlike JJ 40404 4834 16 in in IN 40404 4834 17 form form NN 40404 4834 18 , , , 40404 4834 19 with with IN 40404 4834 20 short short JJ 40404 4834 21 neck neck NN 40404 4834 22 and and CC 40404 4834 23 large large JJ 40404 4834 24 , , , 40404 4834 25 pointed pointed JJ 40404 4834 26 head head NN 40404 4834 27 ( ( -LRB- 40404 4834 28 Fig fig NN 40404 4834 29 . . . 40404 4835 1 333 333 CD 40404 4835 2 ) ) -RRB- 40404 4835 3 . . . 40404 4836 1 [ [ -LRB- 40404 4836 2 Illustration illustration NN 40404 4836 3 : : : 40404 4836 4 Fig Fig NNP 40404 4836 5 . . . 40404 4837 1 333 333 CD 40404 4837 2 . . . 40404 4838 1 Ichthyosaurus Ichthyosaurus NNP 40404 4838 2 ] ] -RRB- 40404 4838 3 A a DT 40404 4838 4 powerful powerful JJ 40404 4838 5 tail tail NN 40404 4838 6 , , , 40404 4838 7 whose whose WP$ 40404 4838 8 flukes fluke NNS 40404 4838 9 were be VBD 40404 4838 10 set set VBN 40404 4838 11 vertical vertical JJ 40404 4838 12 , , , 40404 4838 13 and and CC 40404 4838 14 the the DT 40404 4838 15 lower low JJR 40404 4838 16 one one CD 40404 4838 17 of of IN 40404 4838 18 which which WDT 40404 4838 19 was be VBD 40404 4838 20 vertebrated vertebrate VBN 40404 4838 21 , , , 40404 4838 22 served serve VBN 40404 4838 23 as as IN 40404 4838 24 propeller propeller NN 40404 4838 25 , , , 40404 4838 26 while while IN 40404 4838 27 a a DT 40404 4838 28 large large JJ 40404 4838 29 dorsal dorsal NN 40404 4838 30 fin fin NN 40404 4838 31 was be VBD 40404 4838 32 developed develop VBN 40404 4838 33 as as IN 40404 4838 34 a a DT 40404 4838 35 cutwater cutwater NN 40404 4838 36 . . . 40404 4839 1 The the DT 40404 4839 2 primitive primitive JJ 40404 4839 3 biconcave biconcave IN 40404 4839 4 vertebræ vertebræ NN 40404 4839 5 of of IN 40404 4839 6 the the DT 40404 4839 7 fish fish NN 40404 4839 8 and and CC 40404 4839 9 of of IN 40404 4839 10 the the DT 40404 4839 11 early early JJ 40404 4839 12 land land NN 40404 4839 13 vertebrates vertebrate NNS 40404 4839 14 were be VBD 40404 4839 15 retained retain VBN 40404 4839 16 , , , 40404 4839 17 and and CC 40404 4839 18 the the DT 40404 4839 19 limbs limb NNS 40404 4839 20 degenerated degenerate VBD 40404 4839 21 into into IN 40404 4839 22 short short JJ 40404 4839 23 paddles paddle NNS 40404 4839 24 . . . 40404 4840 1 The the DT 40404 4840 2 skin skin NN 40404 4840 3 of of IN 40404 4840 4 the the DT 40404 4840 5 ichthyosaur ichthyosaur NN 40404 4840 6 was be VBD 40404 4840 7 smooth smooth JJ 40404 4840 8 like like IN 40404 4840 9 that that DT 40404 4840 10 of of IN 40404 4840 11 a a DT 40404 4840 12 whale whale NN 40404 4840 13 , , , 40404 4840 14 and and CC 40404 4840 15 its -PRON- PRP$ 40404 4840 16 food food NN 40404 4840 17 was be VBD 40404 4840 18 largely largely RB 40404 4840 19 fish fish NN 40404 4840 20 and and CC 40404 4840 21 cephalopods cephalopod NNS 40404 4840 22 , , , 40404 4840 23 as as IN 40404 4840 24 the the DT 40404 4840 25 fossil fossil NN 40404 4840 26 contents content NNS 40404 4840 27 of of IN 40404 4840 28 its -PRON- PRP$ 40404 4840 29 stomach stomach NN 40404 4840 30 prove prove NN 40404 4840 31 . . . 40404 4841 1 These these DT 40404 4841 2 sea sea NN 40404 4841 3 monsters monster NNS 40404 4841 4 disported disport VBN 40404 4841 5 along along IN 40404 4841 6 the the DT 40404 4841 7 Pacific Pacific NNP 40404 4841 8 shore shore NN 40404 4841 9 over over RP 40404 4841 10 northern northern JJ 40404 4841 11 California California NNP 40404 4841 12 in in IN 40404 4841 13 Triassic Triassic NNP 40404 4841 14 times times NNP 40404 4841 15 , , , 40404 4841 16 and and CC 40404 4841 17 the the DT 40404 4841 18 bones bone NNS 40404 4841 19 of of IN 40404 4841 20 immense immense JJ 40404 4841 21 members member NNS 40404 4841 22 of of IN 40404 4841 23 the the DT 40404 4841 24 family family NN 40404 4841 25 occur occur VBP 40404 4841 26 in in IN 40404 4841 27 the the DT 40404 4841 28 Jurassic Jurassic NNP 40404 4841 29 strata strata NN 40404 4841 30 of of IN 40404 4841 31 Wyoming Wyoming NNP 40404 4841 32 . . . 40404 4842 1 Like like IN 40404 4842 2 whales whale NNS 40404 4842 3 and and CC 40404 4842 4 seals seal NNS 40404 4842 5 , , , 40404 4842 6 the the DT 40404 4842 7 ichthyosaurs ichthyosaur NNS 40404 4842 8 were be VBD 40404 4842 9 descended descend VBN 40404 4842 10 from from IN 40404 4842 11 land land NN 40404 4842 12 vertebrates vertebrate NNS 40404 4842 13 which which WDT 40404 4842 14 had have VBD 40404 4842 15 become become VBN 40404 4842 16 adapted adapted JJ 40404 4842 17 to to IN 40404 4842 18 a a DT 40404 4842 19 marine marine JJ 40404 4842 20 habitat habitat NN 40404 4842 21 . . . 40404 4843 1 [ [ -LRB- 40404 4843 2 Illustration illustration NN 40404 4843 3 : : : 40404 4843 4 Fig Fig NNP 40404 4843 5 . . . 40404 4844 1 334 334 CD 40404 4844 2 . . . 40404 4845 1 Plesiosaurus Plesiosaurus NNP 40404 4845 2 ] ] -RRB- 40404 4845 3 _ _ NNP 40404 4845 4 Plesiosaurs Plesiosaurs NNP 40404 4845 5 _ _ NNP 40404 4845 6 were be VBD 40404 4845 7 another another DT 40404 4845 8 order order NN 40404 4845 9 which which WDT 40404 4845 10 ranged range VBD 40404 4845 11 throughout throughout IN 40404 4845 12 the the DT 40404 4845 13 Mesozoic Mesozoic NNP 40404 4845 14 . . . 40404 4846 1 Descended descend VBN 40404 4846 2 from from IN 40404 4846 3 small small JJ 40404 4846 4 amphibious amphibious JJ 40404 4846 5 animals animal NNS 40404 4846 6 , , , 40404 4846 7 they -PRON- PRP 40404 4846 8 later later RB 40404 4846 9 included include VBD 40404 4846 10 great great JJ 40404 4846 11 marine marine JJ 40404 4846 12 reptiles reptile NNS 40404 4846 13 , , , 40404 4846 14 characterized characterize VBN 40404 4846 15 in in IN 40404 4846 16 the the DT 40404 4846 17 typical typical JJ 40404 4846 18 genus genus NN 40404 4846 19 by by IN 40404 4846 20 long long JJ 40404 4846 21 neck neck NN 40404 4846 22 , , , 40404 4846 23 snakelike snakelike VBP 40404 4846 24 head head NN 40404 4846 25 , , , 40404 4846 26 and and CC 40404 4846 27 immense immense JJ 40404 4846 28 paddles paddle NNS 40404 4846 29 . . . 40404 4847 1 They -PRON- PRP 40404 4847 2 swam swam VBP 40404 4847 3 in in IN 40404 4847 4 the the DT 40404 4847 5 Cretaceous cretaceous JJ 40404 4847 6 interior interior JJ 40404 4847 7 sea sea NN 40404 4847 8 of of IN 40404 4847 9 western western JJ 40404 4847 10 North North NNP 40404 4847 11 America America NNP 40404 4847 12 . . . 40404 4848 1 [ [ -LRB- 40404 4848 2 Illustration illustration NN 40404 4848 3 : : : 40404 4848 4 Fig Fig NNP 40404 4848 5 . . . 40404 4849 1 335 335 CD 40404 4849 2 . . . 40404 4850 1 Restoration restoration NN 40404 4850 2 of of IN 40404 4850 3 a a DT 40404 4850 4 Mosasaur Mosasaur NNP 40404 4850 5 ] ] -RRB- 40404 4850 6 _ _ NNP 40404 4850 7 Mosasaurs Mosasaurs NNP 40404 4850 8 _ _ NNP 40404 4850 9 belong belong VBP 40404 4850 10 to to IN 40404 4850 11 the the DT 40404 4850 12 same same JJ 40404 4850 13 order order NN 40404 4850 14 as as IN 40404 4850 15 do do VBP 40404 4850 16 snakes snake NNS 40404 4850 17 and and CC 40404 4850 18 lizards lizard NNS 40404 4850 19 , , , 40404 4850 20 and and CC 40404 4850 21 are be VBP 40404 4850 22 an an DT 40404 4850 23 offshoot offshoot NN 40404 4850 24 of of IN 40404 4850 25 the the DT 40404 4850 26 same same JJ 40404 4850 27 ancestral ancestral JJ 40404 4850 28 line line NN 40404 4850 29 of of IN 40404 4850 30 land land NN 40404 4850 31 reptiles reptile NNS 40404 4850 32 . . . 40404 4851 1 These these DT 40404 4851 2 snakelike snakelike VBP 40404 4851 3 creatures creature NNS 40404 4851 4 -- -- : 40404 4851 5 which which WDT 40404 4851 6 measured measure VBD 40404 4851 7 as as RB 40404 4851 8 much much JJ 40404 4851 9 as as IN 40404 4851 10 forty forty CD 40404 4851 11 - - HYPH 40404 4851 12 five five CD 40404 4851 13 feet foot NNS 40404 4851 14 in in IN 40404 4851 15 length length NN 40404 4851 16 -- -- : 40404 4851 17 abounded abound VBN 40404 4851 18 in in IN 40404 4851 19 the the DT 40404 4851 20 Cretaceous cretaceous JJ 40404 4851 21 seas sea NNS 40404 4851 22 . . . 40404 4852 1 They -PRON- PRP 40404 4852 2 had have VBD 40404 4852 3 large large JJ 40404 4852 4 conical conical JJ 40404 4852 5 teeth tooth NNS 40404 4852 6 , , , 40404 4852 7 and and CC 40404 4852 8 their -PRON- PRP$ 40404 4852 9 limbs limb NNS 40404 4852 10 had have VBD 40404 4852 11 become become VBN 40404 4852 12 stout stout IN 40404 4852 13 paddles paddle NNS 40404 4852 14 . . . 40404 4853 1 The the DT 40404 4853 2 lower low JJR 40404 4853 3 jaw jaw NN 40404 4853 4 of of IN 40404 4853 5 the the DT 40404 4853 6 mosasaur mosasaur NN 40404 4853 7 was be VBD 40404 4853 8 jointed joint VBN 40404 4853 9 ; ; : 40404 4853 10 the the DT 40404 4853 11 quadrate quadrate JJ 40404 4853 12 bone bone NN 40404 4853 13 , , , 40404 4853 14 which which WDT 40404 4853 15 in in IN 40404 4853 16 all all DT 40404 4853 17 reptiles reptile NNS 40404 4853 18 connects connect NNS 40404 4853 19 the the DT 40404 4853 20 bone bone NN 40404 4853 21 of of IN 40404 4853 22 the the DT 40404 4853 23 lower low JJR 40404 4853 24 jaw jaw NN 40404 4853 25 with with IN 40404 4853 26 the the DT 40404 4853 27 skull skull NN 40404 4853 28 , , , 40404 4853 29 was be VBD 40404 4853 30 movable movable JJ 40404 4853 31 , , , 40404 4853 32 and and CC 40404 4853 33 as as IN 40404 4853 34 in in IN 40404 4853 35 snakes snake NNS 40404 4853 36 the the DT 40404 4853 37 lower low JJR 40404 4853 38 jaw jaw NN 40404 4853 39 could could MD 40404 4853 40 be be VB 40404 4853 41 used use VBN 40404 4853 42 in in IN 40404 4853 43 thrusting thrust VBG 40404 4853 44 prey prey NN 40404 4853 45 down down IN 40404 4853 46 the the DT 40404 4853 47 throat throat NN 40404 4853 48 . . . 40404 4854 1 The the DT 40404 4854 2 family family NN 40404 4854 3 became become VBD 40404 4854 4 extinct extinct JJ 40404 4854 5 at at IN 40404 4854 6 the the DT 40404 4854 7 end end NN 40404 4854 8 of of IN 40404 4854 9 the the DT 40404 4854 10 Mesozoic Mesozoic NNP 40404 4854 11 , , , 40404 4854 12 and and CC 40404 4854 13 left leave VBD 40404 4854 14 no no DT 40404 4854 15 descendants descendant NNS 40404 4854 16 . . . 40404 4855 1 One one PRP 40404 4855 2 may may MD 40404 4855 3 imitate imitate VB 40404 4855 4 the the DT 40404 4855 5 movement movement NN 40404 4855 6 of of IN 40404 4855 7 the the DT 40404 4855 8 lower low JJR 40404 4855 9 jaw jaw NN 40404 4855 10 of of IN 40404 4855 11 the the DT 40404 4855 12 mosasaur mosasaur NN 40404 4855 13 by by IN 40404 4855 14 extending extend VBG 40404 4855 15 the the DT 40404 4855 16 arms arm NNS 40404 4855 17 , , , 40404 4855 18 clasping clasp VBG 40404 4855 19 the the DT 40404 4855 20 hands hand NNS 40404 4855 21 , , , 40404 4855 22 and and CC 40404 4855 23 bending bend VBG 40404 4855 24 the the DT 40404 4855 25 elbows elbow NNS 40404 4855 26 . . . 40404 4856 1 = = NFP 40404 4856 2 Flying fly VBG 40404 4856 3 reptiles.= reptiles.= CD 40404 4856 4 The the DT 40404 4856 5 atmosphere atmosphere NN 40404 4856 6 , , , 40404 4856 7 which which WDT 40404 4856 8 had have VBD 40404 4856 9 hitherto hitherto VBN 40404 4856 10 been be VBN 40404 4856 11 tenanted tenant VBN 40404 4856 12 only only RB 40404 4856 13 by by IN 40404 4856 14 insects insect NNS 40404 4856 15 , , , 40404 4856 16 was be VBD 40404 4856 17 first first RB 40404 4856 18 conquered conquer VBN 40404 4856 19 by by IN 40404 4856 20 the the DT 40404 4856 21 vertebrates vertebrate NNS 40404 4856 22 in in IN 40404 4856 23 the the DT 40404 4856 24 Mesozoic Mesozoic NNP 40404 4856 25 . . . 40404 4857 1 _ _ NNP 40404 4857 2 Pterosaurs Pterosaurs NNP 40404 4857 3 _ _ NNP 40404 4857 4 , , , 40404 4857 5 winged wing VBD 40404 4857 6 reptiles reptile NNS 40404 4857 7 , , , 40404 4857 8 whose whose WP$ 40404 4857 9 whole whole JJ 40404 4857 10 organism organism NN 40404 4857 11 was be VBD 40404 4857 12 adapted adapt VBN 40404 4857 13 for for IN 40404 4857 14 flight flight NN 40404 4857 15 through through IN 40404 4857 16 the the DT 40404 4857 17 air air NN 40404 4857 18 , , , 40404 4857 19 appeared appear VBD 40404 4857 20 in in IN 40404 4857 21 the the DT 40404 4857 22 Jurassic Jurassic NNP 40404 4857 23 and and CC 40404 4857 24 passed pass VBD 40404 4857 25 off off RP 40404 4857 26 the the DT 40404 4857 27 stage stage NN 40404 4857 28 of of IN 40404 4857 29 existence existence NN 40404 4857 30 before before IN 40404 4857 31 the the DT 40404 4857 32 end end NN 40404 4857 33 of of IN 40404 4857 34 the the DT 40404 4857 35 Cretaceous cretaceous JJ 40404 4857 36 . . . 40404 4858 1 The the DT 40404 4858 2 bones bone NNS 40404 4858 3 were be VBD 40404 4858 4 hollow hollow JJ 40404 4858 5 , , , 40404 4858 6 as as IN 40404 4858 7 are be VBP 40404 4858 8 those those DT 40404 4858 9 of of IN 40404 4858 10 birds bird NNS 40404 4858 11 . . . 40404 4859 1 The the DT 40404 4859 2 sternum sternum NN 40404 4859 3 , , , 40404 4859 4 or or CC 40404 4859 5 breastbone breastbone NNP 40404 4859 6 , , , 40404 4859 7 was be VBD 40404 4859 8 given give VBN 40404 4859 9 a a DT 40404 4859 10 keel keel NN 40404 4859 11 for for IN 40404 4859 12 the the DT 40404 4859 13 attachment attachment NN 40404 4859 14 of of IN 40404 4859 15 the the DT 40404 4859 16 wing wing NN 40404 4859 17 muscles muscle NNS 40404 4859 18 . . . 40404 4860 1 The the DT 40404 4860 2 fifth fifth JJ 40404 4860 3 finger finger NN 40404 4860 4 , , , 40404 4860 5 prodigiously prodigiously RB 40404 4860 6 lengthened lengthen VBN 40404 4860 7 , , , 40404 4860 8 was be VBD 40404 4860 9 turned turn VBN 40404 4860 10 backward backward RB 40404 4860 11 to to TO 40404 4860 12 support support VB 40404 4860 13 a a DT 40404 4860 14 membrane membrane NN 40404 4860 15 which which WDT 40404 4860 16 was be VBD 40404 4860 17 attached attach VBN 40404 4860 18 to to IN 40404 4860 19 the the DT 40404 4860 20 body body NN 40404 4860 21 and and CC 40404 4860 22 extended extend VBD 40404 4860 23 to to IN 40404 4860 24 the the DT 40404 4860 25 base base NN 40404 4860 26 of of IN 40404 4860 27 the the DT 40404 4860 28 tail tail NN 40404 4860 29 . . . 40404 4861 1 The the DT 40404 4861 2 other other JJ 40404 4861 3 fingers finger NNS 40404 4861 4 were be VBD 40404 4861 5 free free JJ 40404 4861 6 , , , 40404 4861 7 and and CC 40404 4861 8 armed arm VBN 40404 4861 9 with with IN 40404 4861 10 sharp sharp JJ 40404 4861 11 and and CC 40404 4861 12 delicate delicate JJ 40404 4861 13 claws claws NN 40404 4861 14 , , , 40404 4861 15 as as IN 40404 4861 16 shown show VBN 40404 4861 17 in in IN 40404 4861 18 Figures Figures NNP 40404 4861 19 336 336 CD 40404 4861 20 and and CC 40404 4861 21 337 337 CD 40404 4861 22 . . . 40404 4862 1 [ [ -LRB- 40404 4862 2 Illustration illustration NN 40404 4862 3 : : : 40404 4862 4 Fig Fig NNP 40404 4862 5 . . . 40404 4863 1 336 336 CD 40404 4863 2 . . . 40404 4864 1 Restoration restoration NN 40404 4864 2 of of IN 40404 4864 3 a a DT 40404 4864 4 Pterosaur pterosaur NN 40404 4864 5 ] ] -RRB- 40404 4864 6 [ [ -LRB- 40404 4864 7 Illustration illustration NN 40404 4864 8 : : : 40404 4864 9 Fig Fig NNP 40404 4864 10 . . . 40404 4865 1 337 337 CD 40404 4865 2 . . . 40404 4866 1 Skeletons skeleton NNS 40404 4866 2 of of IN 40404 4866 3 Pterosaur Pterosaur NNP 40404 4866 4 Ornithostoma Ornithostoma NNP 40404 4866 5 , , , 40404 4866 6 _ _ NNP 40404 4866 7 A A NNP 40404 4866 8 _ _ NNP 40404 4866 9 , , , 40404 4866 10 and and CC 40404 4866 11 of of IN 40404 4866 12 the the DT 40404 4866 13 Condor Condor NNP 40404 4866 14 , , , 40404 4866 15 _ _ NNP 40404 4866 16 B B NNP 40404 4866 17 _ _ NNP 40404 4866 18 After after IN 40404 4866 19 Lucas Lucas NNP 40404 4866 20 ] ] -RRB- 40404 4866 21 These these DT 40404 4866 22 " " `` 40404 4866 23 dragons dragon NNS 40404 4866 24 of of IN 40404 4866 25 the the DT 40404 4866 26 air air NN 40404 4866 27 " " `` 40404 4866 28 varied varied JJ 40404 4866 29 greatly greatly RB 40404 4866 30 in in IN 40404 4866 31 size size NN 40404 4866 32 ; ; : 40404 4866 33 some some DT 40404 4866 34 were be VBD 40404 4866 35 as as RB 40404 4866 36 small small JJ 40404 4866 37 as as IN 40404 4866 38 sparrows sparrow NNS 40404 4866 39 , , , 40404 4866 40 while while IN 40404 4866 41 others other NNS 40404 4866 42 surpassed surpass VBD 40404 4866 43 in in IN 40404 4866 44 stretch stretch NN 40404 4866 45 of of IN 40404 4866 46 wing wing NN 40404 4866 47 the the DT 40404 4866 48 largest large JJS 40404 4866 49 birds bird NNS 40404 4866 50 of of IN 40404 4866 51 the the DT 40404 4866 52 present present JJ 40404 4866 53 day day NN 40404 4866 54 . . . 40404 4867 1 They -PRON- PRP 40404 4867 2 may may MD 40404 4867 3 be be VB 40404 4867 4 divided divide VBN 40404 4867 5 into into IN 40404 4867 6 two two CD 40404 4867 7 groups group NNS 40404 4867 8 . . . 40404 4868 1 The the DT 40404 4868 2 earliest early JJS 40404 4868 3 group group NN 40404 4868 4 comprises comprise VBZ 40404 4868 5 genera genera NN 40404 4868 6 with with IN 40404 4868 7 jaws jaw NNS 40404 4868 8 set set VBN 40404 4868 9 with with IN 40404 4868 10 teeth tooth NNS 40404 4868 11 , , , 40404 4868 12 and and CC 40404 4868 13 with with IN 40404 4868 14 long long JJ 40404 4868 15 tails tail NNS 40404 4868 16 sometimes sometimes RB 40404 4868 17 provided provide VBN 40404 4868 18 with with IN 40404 4868 19 a a DT 40404 4868 20 rudderlike rudderlike JJ 40404 4868 21 expansion expansion NN 40404 4868 22 at at IN 40404 4868 23 the the DT 40404 4868 24 end end NN 40404 4868 25 . . . 40404 4869 1 In in IN 40404 4869 2 their -PRON- PRP$ 40404 4869 3 successors successor NNS 40404 4869 4 of of IN 40404 4869 5 the the DT 40404 4869 6 later later JJ 40404 4869 7 group group NN 40404 4869 8 the the DT 40404 4869 9 tail tail NN 40404 4869 10 had have VBD 40404 4869 11 become become VBN 40404 4869 12 short short JJ 40404 4869 13 , , , 40404 4869 14 and and CC 40404 4869 15 in in IN 40404 4869 16 some some DT 40404 4869 17 of of IN 40404 4869 18 the the DT 40404 4869 19 genera genera NN 40404 4869 20 the the DT 40404 4869 21 teeth tooth NNS 40404 4869 22 had have VBD 40404 4869 23 disappeared disappear VBN 40404 4869 24 . . . 40404 4870 1 Among among IN 40404 4870 2 the the DT 40404 4870 3 latest late JJS 40404 4870 4 of of IN 40404 4870 5 the the DT 40404 4870 6 flying fly VBG 40404 4870 7 reptiles reptile NNS 40404 4870 8 was be VBD 40404 4870 9 _ _ NNP 40404 4870 10 Ornithostoma Ornithostoma NNP 40404 4870 11 _ _ NNP 40404 4870 12 ( ( -LRB- 40404 4870 13 bird bird NNP 40404 4870 14 beak beak NNP 40404 4870 15 ) ) -RRB- 40404 4870 16 , , , 40404 4870 17 the the DT 40404 4870 18 largest large JJS 40404 4870 19 creature creature NN 40404 4870 20 which which WDT 40404 4870 21 ever ever RB 40404 4870 22 flew fly VBD 40404 4870 23 , , , 40404 4870 24 and and CC 40404 4870 25 whose whose WP$ 40404 4870 26 remains remain NNS 40404 4870 27 are be VBP 40404 4870 28 imbedded imbed VBN 40404 4870 29 in in IN 40404 4870 30 the the DT 40404 4870 31 offshore offshore JJ 40404 4870 32 deposits deposit NNS 40404 4870 33 of of IN 40404 4870 34 the the DT 40404 4870 35 Cretaceous cretaceous JJ 40404 4870 36 sea sea NN 40404 4870 37 which which WDT 40404 4870 38 held hold VBD 40404 4870 39 sway sway NN 40404 4870 40 over over IN 40404 4870 41 our -PRON- PRP$ 40404 4870 42 western western JJ 40404 4870 43 plains plain NNS 40404 4870 44 . . . 40404 4871 1 Ornithostoma Ornithostoma NNP 40404 4871 2 's 's POS 40404 4871 3 spread spread NN 40404 4871 4 of of IN 40404 4871 5 wings wing NNS 40404 4871 6 was be VBD 40404 4871 7 twenty twenty CD 40404 4871 8 feet foot NNS 40404 4871 9 . . . 40404 4872 1 Its -PRON- PRP$ 40404 4872 2 bones bone NNS 40404 4872 3 were be VBD 40404 4872 4 a a DT 40404 4872 5 marvel marvel NN 40404 4872 6 of of IN 40404 4872 7 lightness lightness NN 40404 4872 8 , , , 40404 4872 9 the the DT 40404 4872 10 entire entire JJ 40404 4872 11 skeleton skeleton NN 40404 4872 12 , , , 40404 4872 13 even even RB 40404 4872 14 in in IN 40404 4872 15 its -PRON- PRP$ 40404 4872 16 petrified petrified JJ 40404 4872 17 condition condition NN 40404 4872 18 , , , 40404 4872 19 not not RB 40404 4872 20 weighing weigh VBG 40404 4872 21 more more JJR 40404 4872 22 than than IN 40404 4872 23 five five CD 40404 4872 24 or or CC 40404 4872 25 six six CD 40404 4872 26 pounds pound NNS 40404 4872 27 . . . 40404 4873 1 The the DT 40404 4873 2 sharp sharp JJ 40404 4873 3 beak beak NN 40404 4873 4 , , , 40404 4873 5 a a DT 40404 4873 6 yard yard NN 40404 4873 7 long long JJ 40404 4873 8 , , , 40404 4873 9 was be VBD 40404 4873 10 toothless toothless JJ 40404 4873 11 and and CC 40404 4873 12 bird bird NN 40404 4873 13 - - HYPH 40404 4873 14 like like JJ 40404 4873 15 , , , 40404 4873 16 as as IN 40404 4873 17 its -PRON- PRP$ 40404 4873 18 name name NN 40404 4873 19 suggests suggest VBZ 40404 4873 20 . . . 40404 4874 1 [ [ -LRB- 40404 4874 2 Illustration illustration NN 40404 4874 3 : : : 40404 4874 4 Fig Fig NNP 40404 4874 5 . . . 40404 4875 1 338 338 CD 40404 4875 2 . . . 40404 4876 1 Archæopteryx archæopteryx NN 40404 4876 2 ] ] -RRB- 40404 4876 3 = = NFP 40404 4876 4 Birds.= Birds.= NNP 40404 4876 5 The the DT 40404 4876 6 earliest early JJS 40404 4876 7 known know VBN 40404 4876 8 birds bird NNS 40404 4876 9 are be VBP 40404 4876 10 found find VBN 40404 4876 11 in in IN 40404 4876 12 the the DT 40404 4876 13 Jurassic Jurassic NNP 40404 4876 14 , , , 40404 4876 15 and and CC 40404 4876 16 during during IN 40404 4876 17 the the DT 40404 4876 18 remainder remainder NN 40404 4876 19 of of IN 40404 4876 20 the the DT 40404 4876 21 Mesozoic Mesozoic NNP 40404 4876 22 they -PRON- PRP 40404 4876 23 contended contend VBD 40404 4876 24 with with IN 40404 4876 25 the the DT 40404 4876 26 flying fly VBG 40404 4876 27 reptiles reptile NNS 40404 4876 28 for for IN 40404 4876 29 the the DT 40404 4876 30 empire empire NN 40404 4876 31 of of IN 40404 4876 32 the the DT 40404 4876 33 air air NN 40404 4876 34 . . . 40404 4877 1 The the DT 40404 4877 2 first first JJ 40404 4877 3 feathered feather VBN 40404 4877 4 creatures creature NNS 40404 4877 5 were be VBD 40404 4877 6 very very RB 40404 4877 7 different different JJ 40404 4877 8 from from IN 40404 4877 9 the the DT 40404 4877 10 birds bird NNS 40404 4877 11 of of IN 40404 4877 12 to to IN 40404 4877 13 - - HYPH 40404 4877 14 day day NN 40404 4877 15 . . . 40404 4878 1 Their -PRON- PRP$ 40404 4878 2 characteristics characteristic NNS 40404 4878 3 prove prove VBP 40404 4878 4 them -PRON- PRP 40404 4878 5 an an DT 40404 4878 6 offshoot offshoot NN 40404 4878 7 of of IN 40404 4878 8 the the DT 40404 4878 9 dinosaur dinosaur NN 40404 4878 10 line line NN 40404 4878 11 of of IN 40404 4878 12 reptiles reptile NNS 40404 4878 13 . . . 40404 4879 1 _ _ NNP 40404 4879 2 Archæopteryx Archæopteryx NNP 40404 4879 3 _ _ NNP 40404 4879 4 ( ( -LRB- 40404 4879 5 _ _ NNP 40404 4879 6 ancient ancient JJ 40404 4879 7 bird bird NN 40404 4879 8 _ _ NNP 40404 4879 9 ) ) -RRB- 40404 4879 10 ( ( -LRB- 40404 4879 11 Fig fig NN 40404 4879 12 . . . 40404 4880 1 338 338 LS 40404 4880 2 ) ) -RRB- 40404 4880 3 exhibits exhibit VBZ 40404 4880 4 a a DT 40404 4880 5 strange strange JJ 40404 4880 6 mingling mingling NN 40404 4880 7 of of IN 40404 4880 8 bird bird NN 40404 4880 9 and and CC 40404 4880 10 reptile reptile NN 40404 4880 11 . . . 40404 4881 1 Like like IN 40404 4881 2 birds bird NNS 40404 4881 3 , , , 40404 4881 4 it -PRON- PRP 40404 4881 5 was be VBD 40404 4881 6 fledged fledge VBN 40404 4881 7 with with IN 40404 4881 8 perfect perfect JJ 40404 4881 9 feathers feather NNS 40404 4881 10 , , , 40404 4881 11 at at IN 40404 4881 12 least least JJS 40404 4881 13 on on IN 40404 4881 14 wings wing NNS 40404 4881 15 and and CC 40404 4881 16 tail tail NN 40404 4881 17 , , , 40404 4881 18 but but CC 40404 4881 19 it -PRON- PRP 40404 4881 20 retained retain VBD 40404 4881 21 the the DT 40404 4881 22 teeth tooth NNS 40404 4881 23 of of IN 40404 4881 24 the the DT 40404 4881 25 reptile reptile NN 40404 4881 26 , , , 40404 4881 27 and and CC 40404 4881 28 its -PRON- PRP$ 40404 4881 29 long long JJ 40404 4881 30 tail tail NN 40404 4881 31 was be VBD 40404 4881 32 vertebrated vertebrate VBN 40404 4881 33 , , , 40404 4881 34 a a DT 40404 4881 35 pair pair NN 40404 4881 36 of of IN 40404 4881 37 feathers feather NNS 40404 4881 38 springing spring VBG 40404 4881 39 from from IN 40404 4881 40 each each DT 40404 4881 41 joint joint NN 40404 4881 42 . . . 40404 4882 1 Throughout throughout IN 40404 4882 2 the the DT 40404 4882 3 Jurassic Jurassic NNP 40404 4882 4 and and CC 40404 4882 5 Cretaceous Cretaceous NNP 40404 4882 6 the the DT 40404 4882 7 remains remain NNS 40404 4882 8 of of IN 40404 4882 9 birds bird NNS 40404 4882 10 are be VBP 40404 4882 11 far far RB 40404 4882 12 less less RBR 40404 4882 13 common common JJ 40404 4882 14 than than IN 40404 4882 15 those those DT 40404 4882 16 of of IN 40404 4882 17 flying fly VBG 40404 4882 18 reptiles reptile NNS 40404 4882 19 , , , 40404 4882 20 and and CC 40404 4882 21 strata strata NN 40404 4882 22 representing represent VBG 40404 4882 23 hundreds hundred NNS 40404 4882 24 of of IN 40404 4882 25 thousands thousand NNS 40404 4882 26 of of IN 40404 4882 27 years year NNS 40404 4882 28 intervene intervene VBP 40404 4882 29 between between IN 40404 4882 30 Archæopteryx Archæopteryx NNP 40404 4882 31 and and CC 40404 4882 32 the the DT 40404 4882 33 next next JJ 40404 4882 34 birds bird NNS 40404 4882 35 of of IN 40404 4882 36 which which WDT 40404 4882 37 we -PRON- PRP 40404 4882 38 know know VBP 40404 4882 39 , , , 40404 4882 40 whose whose WP$ 40404 4882 41 skeletons skeleton NNS 40404 4882 42 occur occur VBP 40404 4882 43 in in IN 40404 4882 44 the the DT 40404 4882 45 Cretaceous cretaceous JJ 40404 4882 46 beds bed NNS 40404 4882 47 of of IN 40404 4882 48 western western JJ 40404 4882 49 Kansas Kansas NNP 40404 4882 50 . . . 40404 4883 1 = = NFP 40404 4883 2 Mammals.= Mammals.= NNP 40404 4883 3 So so RB 40404 4883 4 far far RB 40404 4883 5 as as IN 40404 4883 6 the the DT 40404 4883 7 entries entry NNS 40404 4883 8 upon upon IN 40404 4883 9 the the DT 40404 4883 10 geological geological JJ 40404 4883 11 record record NN 40404 4883 12 show show NN 40404 4883 13 , , , 40404 4883 14 mammals mammal NNS 40404 4883 15 made make VBD 40404 4883 16 their -PRON- PRP$ 40404 4883 17 advent advent NN 40404 4883 18 in in IN 40404 4883 19 a a DT 40404 4883 20 very very RB 40404 4883 21 humble humble JJ 40404 4883 22 way way NN 40404 4883 23 during during IN 40404 4883 24 the the DT 40404 4883 25 Trias Trias NNP 40404 4883 26 . . . 40404 4884 1 These these DT 40404 4884 2 earliest early JJS 40404 4884 3 of of IN 40404 4884 4 vertebrates vertebrate NNS 40404 4884 5 which which WDT 40404 4884 6 suckle suckle VBP 40404 4884 7 their -PRON- PRP$ 40404 4884 8 young young JJ 40404 4884 9 were be VBD 40404 4884 10 no no RB 40404 4884 11 bigger big JJR 40404 4884 12 than than IN 40404 4884 13 young young JJ 40404 4884 14 kittens kitten NNS 40404 4884 15 , , , 40404 4884 16 and and CC 40404 4884 17 their -PRON- PRP$ 40404 4884 18 strong strong JJ 40404 4884 19 affinities affinity NNS 40404 4884 20 with with IN 40404 4884 21 the the DT 40404 4884 22 theromorphs theromorph NNS 40404 4884 23 suggest suggest VBP 40404 4884 24 that that IN 40404 4884 25 their -PRON- PRP$ 40404 4884 26 ancestors ancestor NNS 40404 4884 27 are be VBP 40404 4884 28 to to TO 40404 4884 29 be be VB 40404 4884 30 found find VBN 40404 4884 31 among among IN 40404 4884 32 some some DT 40404 4884 33 generalized generalize VBN 40404 4884 34 types type NNS 40404 4884 35 of of IN 40404 4884 36 that that DT 40404 4884 37 order order NN 40404 4884 38 of of IN 40404 4884 39 reptiles reptile NNS 40404 4884 40 . . . 40404 4885 1 [ [ -LRB- 40404 4885 2 Illustration illustration NN 40404 4885 3 : : : 40404 4885 4 Fig Fig NNP 40404 4885 5 . . . 40404 4886 1 339 339 CD 40404 4886 2 . . . 40404 4887 1 Jawbone Jawbone NNP 40404 4887 2 of of IN 40404 4887 3 a a DT 40404 4887 4 Jurassic Jurassic NNP 40404 4887 5 Mammal Mammal NNP 40404 4887 6 ] ] -RRB- 40404 4887 7 During during IN 40404 4887 8 the the DT 40404 4887 9 long long JJ 40404 4887 10 ages age NNS 40404 4887 11 of of IN 40404 4887 12 the the DT 40404 4887 13 Mesozoic Mesozoic NNP 40404 4887 14 , , , 40404 4887 15 mammals mammal NNS 40404 4887 16 continued continue VBD 40404 4887 17 small small JJ 40404 4887 18 and and CC 40404 4887 19 few few JJ 40404 4887 20 , , , 40404 4887 21 and and CC 40404 4887 22 were be VBD 40404 4887 23 completely completely RB 40404 4887 24 dominated dominate VBN 40404 4887 25 by by IN 40404 4887 26 the the DT 40404 4887 27 reptiles reptile NNS 40404 4887 28 . . . 40404 4888 1 Their -PRON- PRP$ 40404 4888 2 remains remain NNS 40404 4888 3 are be VBP 40404 4888 4 exceedingly exceedingly RB 40404 4888 5 rare rare JJ 40404 4888 6 , , , 40404 4888 7 and and CC 40404 4888 8 consist consist VB 40404 4888 9 of of IN 40404 4888 10 minute minute NN 40404 4888 11 scattered scatter VBN 40404 4888 12 teeth,--with teeth,--with NNP 40404 4888 13 an an DT 40404 4888 14 occasional occasional JJ 40404 4888 15 detached detach VBN 40404 4888 16 jaw,--which jaw,--which NN 40404 4888 17 prove prove VB 40404 4888 18 them -PRON- PRP 40404 4888 19 to to TO 40404 4888 20 have have VB 40404 4888 21 been be VBN 40404 4888 22 flesh flesh NN 40404 4888 23 or or CC 40404 4888 24 insect insect NN 40404 4888 25 eaters eater NNS 40404 4888 26 . . . 40404 4889 1 In in IN 40404 4889 2 the the DT 40404 4889 3 same same JJ 40404 4889 4 way way NN 40404 4889 5 their -PRON- PRP$ 40404 4889 6 affinities affinity NNS 40404 4889 7 are be VBP 40404 4889 8 seen see VBN 40404 4889 9 to to TO 40404 4889 10 be be VB 40404 4889 11 with with IN 40404 4889 12 the the DT 40404 4889 13 lowest low JJS 40404 4889 14 of of IN 40404 4889 15 mammals,--the mammals,--the NNP 40404 4889 16 _ _ NNP 40404 4889 17 monotremes monotremes NNP 40404 4889 18 _ _ NNP 40404 4889 19 and and CC 40404 4889 20 _ _ NNP 40404 4889 21 marsupials marsupial NNS 40404 4889 22 _ _ NNP 40404 4889 23 . . . 40404 4890 1 The the DT 40404 4890 2 monotremes,--such monotremes,--such NNP 40404 4890 3 as as IN 40404 4890 4 the the DT 40404 4890 5 duckbill duckbill NN 40404 4890 6 mole mole NNP 40404 4890 7 and and CC 40404 4890 8 the the DT 40404 4890 9 spiny spiny NNP 40404 4890 10 ant ant NN 40404 4890 11 - - HYPH 40404 4890 12 eater eater NN 40404 4890 13 of of IN 40404 4890 14 Australia Australia NNP 40404 4890 15 , , , 40404 4890 16 reproduce reproduce VB 40404 4890 17 by by IN 40404 4890 18 means mean NNS 40404 4890 19 of of IN 40404 4890 20 eggs egg NNS 40404 4890 21 resembling resemble VBG 40404 4890 22 those those DT 40404 4890 23 of of IN 40404 4890 24 reptiles reptile NNS 40404 4890 25 ; ; : 40404 4890 26 the the DT 40404 4890 27 marsupials marsupial NNS 40404 4890 28 , , , 40404 4890 29 such such JJ 40404 4890 30 as as IN 40404 4890 31 the the DT 40404 4890 32 opossum opossum NN 40404 4890 33 and and CC 40404 4890 34 the the DT 40404 4890 35 kangaroo kangaroo NNP 40404 4890 36 , , , 40404 4890 37 bring bring VB 40404 4890 38 forth forth RB 40404 4890 39 their -PRON- PRP$ 40404 4890 40 young young JJ 40404 4890 41 alive alive JJ 40404 4890 42 , , , 40404 4890 43 but but CC 40404 4890 44 in in IN 40404 4890 45 a a DT 40404 4890 46 very very RB 40404 4890 47 immature immature JJ 40404 4890 48 condition condition NN 40404 4890 49 , , , 40404 4890 50 and and CC 40404 4890 51 carry carry VB 40404 4890 52 them -PRON- PRP 40404 4890 53 for for IN 40404 4890 54 some some DT 40404 4890 55 time time NN 40404 4890 56 after after IN 40404 4890 57 birth birth NN 40404 4890 58 in in IN 40404 4890 59 the the DT 40404 4890 60 marsupium marsupium NN 40404 4890 61 , , , 40404 4890 62 a a DT 40404 4890 63 pouch pouch NN 40404 4890 64 on on IN 40404 4890 65 the the DT 40404 4890 66 ventral ventral JJ 40404 4890 67 side side NN 40404 4890 68 of of IN 40404 4890 69 the the DT 40404 4890 70 body body NN 40404 4890 71 . . . 40404 4891 1 CHAPTER chapter NN 40404 4891 2 XXI xxi VBP 40404 4891 3 THE the DT 40404 4891 4 TERTIARY tertiary NN 40404 4891 5 = = NFP 40404 4891 6 The the DT 40404 4891 7 Cenozoic Cenozoic NNP 40404 4891 8 era.= era.= NN 40404 4891 9 The the DT 40404 4891 10 last last JJ 40404 4891 11 stages stage NNS 40404 4891 12 of of IN 40404 4891 13 the the DT 40404 4891 14 Cretaceous Cretaceous NNP 40404 4891 15 are be VBP 40404 4891 16 marked mark VBN 40404 4891 17 by by IN 40404 4891 18 a a DT 40404 4891 19 decadence decadence NN 40404 4891 20 of of IN 40404 4891 21 the the DT 40404 4891 22 reptiles reptile NNS 40404 4891 23 . . . 40404 4892 1 By by IN 40404 4892 2 the the DT 40404 4892 3 end end NN 40404 4892 4 of of IN 40404 4892 5 that that DT 40404 4892 6 period period NN 40404 4892 7 the the DT 40404 4892 8 reptilian reptilian JJ 40404 4892 9 forms form NNS 40404 4892 10 characteristic characteristic JJ 40404 4892 11 of of IN 40404 4892 12 the the DT 40404 4892 13 time time NN 40404 4892 14 had have VBD 40404 4892 15 become become VBN 40404 4892 16 extinct extinct JJ 40404 4892 17 one one CD 40404 4892 18 after after IN 40404 4892 19 another another DT 40404 4892 20 , , , 40404 4892 21 leaving leave VBG 40404 4892 22 to to TO 40404 4892 23 represent represent VB 40404 4892 24 the the DT 40404 4892 25 class class NN 40404 4892 26 only only RB 40404 4892 27 the the DT 40404 4892 28 types type NNS 40404 4892 29 of of IN 40404 4892 30 reptiles reptile NNS 40404 4892 31 which which WDT 40404 4892 32 continue continue VBP 40404 4892 33 to to IN 40404 4892 34 modern modern JJ 40404 4892 35 times time NNS 40404 4892 36 . . . 40404 4893 1 The the DT 40404 4893 2 day day NN 40404 4893 3 of of IN 40404 4893 4 the the DT 40404 4893 5 ammonite ammonite JJ 40404 4893 6 and and CC 40404 4893 7 the the DT 40404 4893 8 belemnite belemnite NN 40404 4893 9 also also RB 40404 4893 10 now now RB 40404 4893 11 drew draw VBD 40404 4893 12 to to IN 40404 4893 13 a a DT 40404 4893 14 close close NN 40404 4893 15 , , , 40404 4893 16 and and CC 40404 4893 17 only only RB 40404 4893 18 a a DT 40404 4893 19 few few JJ 40404 4893 20 of of IN 40404 4893 21 these these DT 40404 4893 22 cephalopods cephalopod NNS 40404 4893 23 were be VBD 40404 4893 24 left leave VBN 40404 4893 25 to to TO 40404 4893 26 survive survive VB 40404 4893 27 the the DT 40404 4893 28 period period NN 40404 4893 29 . . . 40404 4894 1 It -PRON- PRP 40404 4894 2 is be VBZ 40404 4894 3 therefore therefore RB 40404 4894 4 at at IN 40404 4894 5 the the DT 40404 4894 6 close close NN 40404 4894 7 of of IN 40404 4894 8 the the DT 40404 4894 9 Cretaceous Cretaceous NNP 40404 4894 10 that that IN 40404 4894 11 the the DT 40404 4894 12 line line NN 40404 4894 13 is be VBZ 40404 4894 14 drawn draw VBN 40404 4894 15 which which WDT 40404 4894 16 marks mark VBZ 40404 4894 17 the the DT 40404 4894 18 end end NN 40404 4894 19 of of IN 40404 4894 20 the the DT 40404 4894 21 Middle Middle NNP 40404 4894 22 Age Age NNP 40404 4894 23 of of IN 40404 4894 24 geology geology NN 40404 4894 25 and and CC 40404 4894 26 the the DT 40404 4894 27 beginning beginning NN 40404 4894 28 of of IN 40404 4894 29 the the DT 40404 4894 30 Cenozoic Cenozoic NNP 40404 4894 31 era era NN 40404 4894 32 , , , 40404 4894 33 the the DT 40404 4894 34 era era NN 40404 4894 35 of of IN 40404 4894 36 modern modern JJ 40404 4894 37 life,--the life,--the NNP 40404 4894 38 Age Age NNP 40404 4894 39 of of IN 40404 4894 40 Mammals Mammals NNPS 40404 4894 41 . . . 40404 4895 1 In in IN 40404 4895 2 place place NN 40404 4895 3 of of IN 40404 4895 4 the the DT 40404 4895 5 giant giant JJ 40404 4895 6 reptiles reptile NNS 40404 4895 7 , , , 40404 4895 8 mammals mammal NNS 40404 4895 9 now now RB 40404 4895 10 become become VBP 40404 4895 11 masters master NNS 40404 4895 12 of of IN 40404 4895 13 the the DT 40404 4895 14 land land NN 40404 4895 15 , , , 40404 4895 16 appearing appear VBG 40404 4895 17 first first RB 40404 4895 18 in in IN 40404 4895 19 generalized generalize VBN 40404 4895 20 types type NNS 40404 4895 21 which which WDT 40404 4895 22 , , , 40404 4895 23 during during IN 40404 4895 24 the the DT 40404 4895 25 long long JJ 40404 4895 26 ages age NNS 40404 4895 27 of of IN 40404 4895 28 the the DT 40404 4895 29 era era NN 40404 4895 30 , , , 40404 4895 31 gradually gradually RB 40404 4895 32 evolve evolve VB 40404 4895 33 to to IN 40404 4895 34 higher high JJR 40404 4895 35 forms form NNS 40404 4895 36 , , , 40404 4895 37 more more RBR 40404 4895 38 specialized specialized JJ 40404 4895 39 and and CC 40404 4895 40 ever ever RB 40404 4895 41 more more RBR 40404 4895 42 closely closely RB 40404 4895 43 resembling resemble VBG 40404 4895 44 the the DT 40404 4895 45 mammals mammal NNS 40404 4895 46 of of IN 40404 4895 47 the the DT 40404 4895 48 present present NN 40404 4895 49 . . . 40404 4896 1 In in IN 40404 4896 2 the the DT 40404 4896 3 atmosphere atmosphere NN 40404 4896 4 the the DT 40404 4896 5 flying fly VBG 40404 4896 6 dragons dragon NNS 40404 4896 7 of of IN 40404 4896 8 the the DT 40404 4896 9 Mesozoic Mesozoic NNP 40404 4896 10 give give VB 40404 4896 11 place place NN 40404 4896 12 to to IN 40404 4896 13 birds bird NNS 40404 4896 14 and and CC 40404 4896 15 bats bat NNS 40404 4896 16 . . . 40404 4897 1 In in IN 40404 4897 2 the the DT 40404 4897 3 sea sea NN 40404 4897 4 , , , 40404 4897 5 whales whale NNS 40404 4897 6 , , , 40404 4897 7 sharks shark NNS 40404 4897 8 , , , 40404 4897 9 and and CC 40404 4897 10 teleost teleost NN 40404 4897 11 fishes fish NNS 40404 4897 12 of of IN 40404 4897 13 modern modern JJ 40404 4897 14 types type NNS 40404 4897 15 rule rule VBP 40404 4897 16 in in IN 40404 4897 17 the the DT 40404 4897 18 stead stead NN 40404 4897 19 of of IN 40404 4897 20 huge huge JJ 40404 4897 21 swimming swimming NN 40404 4897 22 reptiles reptile NNS 40404 4897 23 . . . 40404 4898 1 The the DT 40404 4898 2 lower low JJR 40404 4898 3 vertebrates vertebrate NNS 40404 4898 4 , , , 40404 4898 5 the the DT 40404 4898 6 invertebrates invertebrate NNS 40404 4898 7 of of IN 40404 4898 8 land land NN 40404 4898 9 and and CC 40404 4898 10 sea sea NN 40404 4898 11 , , , 40404 4898 12 and and CC 40404 4898 13 the the DT 40404 4898 14 plants plant NNS 40404 4898 15 of of IN 40404 4898 16 field field NN 40404 4898 17 and and CC 40404 4898 18 forest forest NN 40404 4898 19 take take VBP 40404 4898 20 on on RP 40404 4898 21 a a DT 40404 4898 22 modern modern JJ 40404 4898 23 aspect aspect NN 40404 4898 24 , , , 40404 4898 25 and and CC 40404 4898 26 differ differ VB 40404 4898 27 little little JJ 40404 4898 28 more more JJR 40404 4898 29 from from IN 40404 4898 30 those those DT 40404 4898 31 of of IN 40404 4898 32 to to IN 40404 4898 33 - - HYPH 40404 4898 34 day day NN 40404 4898 35 than than IN 40404 4898 36 the the DT 40404 4898 37 plants plant NNS 40404 4898 38 and and CC 40404 4898 39 animals animal NNS 40404 4898 40 of of IN 40404 4898 41 different different JJ 40404 4898 42 countries country NNS 40404 4898 43 now now RB 40404 4898 44 differ differ VBP 40404 4898 45 from from IN 40404 4898 46 one one CD 40404 4898 47 another another DT 40404 4898 48 . . . 40404 4899 1 From from IN 40404 4899 2 the the DT 40404 4899 3 beginning beginning NN 40404 4899 4 of of IN 40404 4899 5 the the DT 40404 4899 6 Cenozoic Cenozoic NNP 40404 4899 7 era era NN 40404 4899 8 until until IN 40404 4899 9 now now RB 40404 4899 10 there there EX 40404 4899 11 is be VBZ 40404 4899 12 a a DT 40404 4899 13 steadily steadily RB 40404 4899 14 increasing increase VBG 40404 4899 15 number number NN 40404 4899 16 of of IN 40404 4899 17 species specie NNS 40404 4899 18 of of IN 40404 4899 19 animals animal NNS 40404 4899 20 and and CC 40404 4899 21 plants plant NNS 40404 4899 22 which which WDT 40404 4899 23 have have VBP 40404 4899 24 continued continue VBN 40404 4899 25 to to TO 40404 4899 26 exist exist VB 40404 4899 27 to to IN 40404 4899 28 the the DT 40404 4899 29 present present JJ 40404 4899 30 time time NN 40404 4899 31 . . . 40404 4900 1 The the DT 40404 4900 2 Cenozoic Cenozoic NNP 40404 4900 3 era era NN 40404 4900 4 comprises comprise VBZ 40404 4900 5 two two CD 40404 4900 6 divisions,--the divisions,--the DT 40404 4900 7 _ _ NNP 40404 4900 8 Tertiary Tertiary NNP 40404 4900 9 _ _ NNP 40404 4900 10 period period NN 40404 4900 11 and and CC 40404 4900 12 the the DT 40404 4900 13 _ _ NNP 40404 4900 14 Quaternary Quaternary NNP 40404 4900 15 _ _ NNP 40404 4900 16 period period NN 40404 4900 17 . . . 40404 4901 1 In in IN 40404 4901 2 the the DT 40404 4901 3 early early JJ 40404 4901 4 days day NNS 40404 4901 5 of of IN 40404 4901 6 geology geology NN 40404 4901 7 the the DT 40404 4901 8 formations formation NNS 40404 4901 9 of of IN 40404 4901 10 the the DT 40404 4901 11 entire entire JJ 40404 4901 12 geological geological JJ 40404 4901 13 record record NN 40404 4901 14 , , , 40404 4901 15 so so RB 40404 4901 16 far far RB 40404 4901 17 as as IN 40404 4901 18 it -PRON- PRP 40404 4901 19 was be VBD 40404 4901 20 then then RB 40404 4901 21 known know VBN 40404 4901 22 , , , 40404 4901 23 were be VBD 40404 4901 24 divided divide VBN 40404 4901 25 into into IN 40404 4901 26 three three CD 40404 4901 27 groups,--the groups,--the DT 40404 4901 28 _ _ NNP 40404 4901 29 Primary Primary NNP 40404 4901 30 _ _ NNP 40404 4901 31 , , , 40404 4901 32 the the DT 40404 4901 33 _ _ NNP 40404 4901 34 Secondary Secondary NNP 40404 4901 35 _ _ NNP 40404 4901 36 ( ( -LRB- 40404 4901 37 now now RB 40404 4901 38 known know VBN 40404 4901 39 as as IN 40404 4901 40 the the DT 40404 4901 41 Mesozoic Mesozoic NNP 40404 4901 42 ) ) -RRB- 40404 4901 43 , , , 40404 4901 44 and and CC 40404 4901 45 the the DT 40404 4901 46 _ _ NNP 40404 4901 47 Tertiary Tertiary NNP 40404 4901 48 _ _ NNP 40404 4901 49 , , , 40404 4901 50 When when WRB 40404 4901 51 the the DT 40404 4901 52 third third JJ 40404 4901 53 group group NN 40404 4901 54 was be VBD 40404 4901 55 subdivided subdivide VBN 40404 4901 56 into into IN 40404 4901 57 two two CD 40404 4901 58 systems system NNS 40404 4901 59 , , , 40404 4901 60 the the DT 40404 4901 61 term term NN 40404 4901 62 Tertiary Tertiary NNP 40404 4901 63 was be VBD 40404 4901 64 retained retain VBN 40404 4901 65 for for IN 40404 4901 66 the the DT 40404 4901 67 first first JJ 40404 4901 68 system system NN 40404 4901 69 of of IN 40404 4901 70 the the DT 40404 4901 71 two two CD 40404 4901 72 , , , 40404 4901 73 while while IN 40404 4901 74 the the DT 40404 4901 75 term term NN 40404 4901 76 _ _ NNP 40404 4901 77 Quaternary Quaternary NNP 40404 4901 78 _ _ NNP 40404 4901 79 was be VBD 40404 4901 80 used use VBN 40404 4901 81 to to TO 40404 4901 82 designate designate VB 40404 4901 83 the the DT 40404 4901 84 second second JJ 40404 4901 85 . . . 40404 4902 1 = = NFP 40404 4902 2 Divisions division NNS 40404 4902 3 of of IN 40404 4902 4 the the DT 40404 4902 5 Tertiary.= tertiary.= NN 40404 4902 6 The the DT 40404 4902 7 formations formation NNS 40404 4902 8 of of IN 40404 4902 9 the the DT 40404 4902 10 Tertiary Tertiary NNP 40404 4902 11 are be VBP 40404 4902 12 grouped group VBN 40404 4902 13 in in IN 40404 4902 14 three three CD 40404 4902 15 divisions,--the divisions,--the DT 40404 4902 16 _ _ NNP 40404 4902 17 Pliocene Pliocene NNP 40404 4902 18 _ _ NNP 40404 4902 19 ( ( -LRB- 40404 4902 20 more more RBR 40404 4902 21 recent recent JJ 40404 4902 22 ) ) -RRB- 40404 4902 23 , , , 40404 4902 24 the the DT 40404 4902 25 _ _ NNP 40404 4902 26 Miocene Miocene NNP 40404 4902 27 _ _ NNP 40404 4902 28 ( ( -LRB- 40404 4902 29 less less RBR 40404 4902 30 recent recent JJ 40404 4902 31 ) ) -RRB- 40404 4902 32 , , , 40404 4902 33 and and CC 40404 4902 34 the the DT 40404 4902 35 _ _ NNP 40404 4902 36 Eocene Eocene NNP 40404 4902 37 _ _ NNP 40404 4902 38 ( ( -LRB- 40404 4902 39 the the DT 40404 4902 40 dawn dawn NN 40404 4902 41 of of IN 40404 4902 42 the the DT 40404 4902 43 recent recent JJ 40404 4902 44 ) ) -RRB- 40404 4902 45 . . . 40404 4903 1 Each each DT 40404 4903 2 of of IN 40404 4903 3 these these DT 40404 4903 4 epochs epoch NNS 40404 4903 5 is be VBZ 40404 4903 6 long long JJ 40404 4903 7 and and CC 40404 4903 8 complex complex JJ 40404 4903 9 . . . 40404 4904 1 Their -PRON- PRP$ 40404 4904 2 various various JJ 40404 4904 3 subdivisions subdivision NNS 40404 4904 4 are be VBP 40404 4904 5 distinguished distinguish VBN 40404 4904 6 each each DT 40404 4904 7 by by IN 40404 4904 8 its -PRON- PRP$ 40404 4904 9 own own JJ 40404 4904 10 peculiar peculiar JJ 40404 4904 11 organisms organism NNS 40404 4904 12 , , , 40404 4904 13 and and CC 40404 4904 14 the the DT 40404 4904 15 changes change NNS 40404 4904 16 of of IN 40404 4904 17 physical physical JJ 40404 4904 18 geography geography NN 40404 4904 19 recorded record VBN 40404 4904 20 in in IN 40404 4904 21 their -PRON- PRP$ 40404 4904 22 strata strata NN 40404 4904 23 . . . 40404 4905 1 In in IN 40404 4905 2 the the DT 40404 4905 3 rapid rapid JJ 40404 4905 4 view view NN 40404 4905 5 which which WDT 40404 4905 6 we -PRON- PRP 40404 4905 7 are be VBP 40404 4905 8 compelled compel VBN 40404 4905 9 to to TO 40404 4905 10 take take VB 40404 4905 11 we -PRON- PRP 40404 4905 12 can can MD 40404 4905 13 note note VB 40404 4905 14 only only RB 40404 4905 15 a a DT 40404 4905 16 few few JJ 40404 4905 17 of of IN 40404 4905 18 the the DT 40404 4905 19 most most RBS 40404 4905 20 conspicuous conspicuous JJ 40404 4905 21 events event NNS 40404 4905 22 of of IN 40404 4905 23 the the DT 40404 4905 24 period period NN 40404 4905 25 . . . 40404 4906 1 = = NFP 40404 4906 2 Physical physical JJ 40404 4906 3 geography geography NN 40404 4906 4 of of IN 40404 4906 5 the the DT 40404 4906 6 Tertiary Tertiary NNP 40404 4906 7 in in IN 40404 4906 8 eastern eastern JJ 40404 4906 9 North North NNP 40404 4906 10 America.= America.= NNP 40404 4906 11 The the DT 40404 4906 12 Tertiary Tertiary NNP 40404 4906 13 rocks rock NNS 40404 4906 14 of of IN 40404 4906 15 eastern eastern JJ 40404 4906 16 North North NNP 40404 4906 17 America America NNP 40404 4906 18 are be VBP 40404 4906 19 marine marine JJ 40404 4906 20 deposits deposit NNS 40404 4906 21 and and CC 40404 4906 22 occupy occupy VBP 40404 4906 23 the the DT 40404 4906 24 coastal coastal JJ 40404 4906 25 lowlands lowland NNS 40404 4906 26 of of IN 40404 4906 27 the the DT 40404 4906 28 Atlantic Atlantic NNP 40404 4906 29 and and CC 40404 4906 30 Gulf Gulf NNP 40404 4906 31 states state NNS 40404 4906 32 ( ( -LRB- 40404 4906 33 Fig fig NN 40404 4906 34 . . . 40404 4907 1 260 260 CD 40404 4907 2 ) ) -RRB- 40404 4907 3 . . . 40404 4908 1 In in IN 40404 4908 2 New New NNP 40404 4908 3 England England NNP 40404 4908 4 , , , 40404 4908 5 Tertiary Tertiary NNP 40404 4908 6 beds bed NNS 40404 4908 7 occur occur VBP 40404 4908 8 on on IN 40404 4908 9 the the DT 40404 4908 10 island island NN 40404 4908 11 of of IN 40404 4908 12 Martha Martha NNP 40404 4908 13 's 's POS 40404 4908 14 Vineyard Vineyard NNP 40404 4908 15 , , , 40404 4908 16 but but CC 40404 4908 17 not not RB 40404 4908 18 on on IN 40404 4908 19 the the DT 40404 4908 20 mainland mainland NN 40404 4908 21 ; ; : 40404 4908 22 hence hence RB 40404 4908 23 the the DT 40404 4908 24 shore shore NN 40404 4908 25 line line NN 40404 4908 26 here here RB 40404 4908 27 stood stand VBD 40404 4908 28 somewhat somewhat RB 40404 4908 29 farther farther RB 40404 4908 30 out out RB 40404 4908 31 than than IN 40404 4908 32 now now RB 40404 4908 33 . . . 40404 4909 1 From from IN 40404 4909 2 New New NNP 40404 4909 3 Jersey Jersey NNP 40404 4909 4 southward southward IN 40404 4909 5 the the DT 40404 4909 6 earliest early JJS 40404 4909 7 Tertiary tertiary JJ 40404 4909 8 sands sand NNS 40404 4909 9 and and CC 40404 4909 10 clays clay NNS 40404 4909 11 , , , 40404 4909 12 still still RB 40404 4909 13 unconsolidated unconsolidated JJ 40404 4909 14 , , , 40404 4909 15 leave leave VB 40404 4909 16 only only RB 40404 4909 17 a a DT 40404 4909 18 narrow narrow JJ 40404 4909 19 strip strip NN 40404 4909 20 of of IN 40404 4909 21 the the DT 40404 4909 22 edge edge NN 40404 4909 23 of of IN 40404 4909 24 the the DT 40404 4909 25 Cretaceous cretaceous JJ 40404 4909 26 between between IN 40404 4909 27 them -PRON- PRP 40404 4909 28 and and CC 40404 4909 29 the the DT 40404 4909 30 Triassic Triassic NNP 40404 4909 31 and and CC 40404 4909 32 crystalline crystalline NN 40404 4909 33 rocks rock NNS 40404 4909 34 of of IN 40404 4909 35 the the DT 40404 4909 36 Piedmont Piedmont NNP 40404 4909 37 oldland oldland NN 40404 4909 38 ; ; : 40404 4909 39 hence hence RB 40404 4909 40 the the DT 40404 4909 41 Atlantic Atlantic NNP 40404 4909 42 shore shore NN 40404 4909 43 here here RB 40404 4909 44 stood stand VBD 40404 4909 45 farther far RBR 40404 4909 46 in in IN 40404 4909 47 than than IN 40404 4909 48 now now RB 40404 4909 49 , , , 40404 4909 50 and and CC 40404 4909 51 at at IN 40404 4909 52 the the DT 40404 4909 53 beginning beginning NN 40404 4909 54 of of IN 40404 4909 55 the the DT 40404 4909 56 period period NN 40404 4909 57 the the DT 40404 4909 58 present present JJ 40404 4909 59 coastal coastal JJ 40404 4909 60 plain plain NN 40404 4909 61 was be VBD 40404 4909 62 continental continental JJ 40404 4909 63 delta delta NNP 40404 4909 64 . . . 40404 4910 1 A a DT 40404 4910 2 broad broad JJ 40404 4910 3 belt belt NN 40404 4910 4 of of IN 40404 4910 5 Tertiary Tertiary NNP 40404 4910 6 sea sea NN 40404 4910 7 - - HYPH 40404 4910 8 laid lay VBN 40404 4910 9 limestones limestone NNS 40404 4910 10 , , , 40404 4910 11 sandstones sandstone NNS 40404 4910 12 , , , 40404 4910 13 and and CC 40404 4910 14 shales shale NNS 40404 4910 15 surrounds surround VBZ 40404 4910 16 the the DT 40404 4910 17 Gulf Gulf NNP 40404 4910 18 of of IN 40404 4910 19 Mexico Mexico NNP 40404 4910 20 and and CC 40404 4910 21 extends extend VBZ 40404 4910 22 northward northward RB 40404 4910 23 up up RP 40404 4910 24 the the DT 40404 4910 25 Mississippi Mississippi NNP 40404 4910 26 embayment embayment NN 40404 4910 27 to to IN 40404 4910 28 the the DT 40404 4910 29 mouth mouth NN 40404 4910 30 of of IN 40404 4910 31 the the DT 40404 4910 32 Ohio Ohio NNP 40404 4910 33 River River NNP 40404 4910 34 ; ; : 40404 4910 35 hence hence RB 40404 4910 36 the the DT 40404 4910 37 Gulf Gulf NNP 40404 4910 38 was be VBD 40404 4910 39 then then RB 40404 4910 40 larger large JJR 40404 4910 41 than than IN 40404 4910 42 at at IN 40404 4910 43 present present NN 40404 4910 44 , , , 40404 4910 45 and and CC 40404 4910 46 its -PRON- PRP$ 40404 4910 47 waters water NNS 40404 4910 48 reached reach VBN 40404 4910 49 in in IN 40404 4910 50 a a DT 40404 4910 51 broad broad JJ 40404 4910 52 bay bay NN 40404 4910 53 far far RB 40404 4910 54 up up IN 40404 4910 55 the the DT 40404 4910 56 Mississippi Mississippi NNP 40404 4910 57 valley valley NN 40404 4910 58 . . . 40404 4911 1 Along along IN 40404 4911 2 the the DT 40404 4911 3 Atlantic Atlantic NNP 40404 4911 4 coast coast NN 40404 4911 5 the the DT 40404 4911 6 Mesozoic Mesozoic NNP 40404 4911 7 peneplain peneplain NN 40404 4911 8 may may MD 40404 4911 9 be be VB 40404 4911 10 traced trace VBN 40404 4911 11 shoreward shoreward NN 40404 4911 12 to to IN 40404 4911 13 where where WRB 40404 4911 14 it -PRON- PRP 40404 4911 15 disappears disappear VBZ 40404 4911 16 from from IN 40404 4911 17 view view NN 40404 4911 18 beneath beneath IN 40404 4911 19 an an DT 40404 4911 20 unconformable unconformable JJ 40404 4911 21 cover cover NN 40404 4911 22 of of IN 40404 4911 23 early early JJ 40404 4911 24 Tertiary tertiary JJ 40404 4911 25 marine marine JJ 40404 4911 26 strata strata NN 40404 4911 27 . . . 40404 4912 1 The the DT 40404 4912 2 beginning beginning NN 40404 4912 3 of of IN 40404 4912 4 the the DT 40404 4912 5 Tertiary Tertiary NNP 40404 4912 6 was be VBD 40404 4912 7 therefore therefore RB 40404 4912 8 marked mark VBN 40404 4912 9 by by IN 40404 4912 10 a a DT 40404 4912 11 subsidence subsidence NN 40404 4912 12 . . . 40404 4913 1 The the DT 40404 4913 2 wide wide JJ 40404 4913 3 erosion erosion NN 40404 4913 4 surface surface NN 40404 4913 5 which which WDT 40404 4913 6 at at IN 40404 4913 7 the the DT 40404 4913 8 close close NN 40404 4913 9 of of IN 40404 4913 10 the the DT 40404 4913 11 Mesozoic Mesozoic NNP 40404 4913 12 lay lie VBD 40404 4913 13 near near IN 40404 4913 14 sea sea NN 40404 4913 15 level level NN 40404 4913 16 where where WRB 40404 4913 17 the the DT 40404 4913 18 Appalachian Appalachian NNP 40404 4913 19 Mountains Mountains NNPS 40404 4913 20 and and CC 40404 4913 21 their -PRON- PRP$ 40404 4913 22 neighboring neighboring NN 40404 4913 23 plateaus plateaus NN 40404 4913 24 and and CC 40404 4913 25 uplands upland NNS 40404 4913 26 now now RB 40404 4913 27 stand stand VBP 40404 4913 28 was be VBD 40404 4913 29 lowered lower VBN 40404 4913 30 gently gently RB 40404 4913 31 along along IN 40404 4913 32 its -PRON- PRP$ 40404 4913 33 seaward seaward NN 40404 4913 34 edge edge NN 40404 4913 35 beneath beneath IN 40404 4913 36 the the DT 40404 4913 37 Tertiary Tertiary NNP 40404 4913 38 Atlantic Atlantic NNP 40404 4913 39 to to TO 40404 4913 40 receive receive VB 40404 4913 41 a a DT 40404 4913 42 cover cover NN 40404 4913 43 of of IN 40404 4913 44 its -PRON- PRP$ 40404 4913 45 sediments sediment NNS 40404 4913 46 . . . 40404 4914 1 As as IN 40404 4914 2 the the DT 40404 4914 3 period period NN 40404 4914 4 progressed progress VBD 40404 4914 5 slight slight JJ 40404 4914 6 oscillations oscillation NNS 40404 4914 7 occurred occur VBD 40404 4914 8 from from IN 40404 4914 9 time time NN 40404 4914 10 to to IN 40404 4914 11 time time NN 40404 4914 12 . . . 40404 4915 1 Strips strip NNS 40404 4915 2 of of IN 40404 4915 3 coastal coastal JJ 40404 4915 4 plain plain NN 40404 4915 5 were be VBD 40404 4915 6 added add VBN 40404 4915 7 to to IN 40404 4915 8 the the DT 40404 4915 9 land land NN 40404 4915 10 , , , 40404 4915 11 and and CC 40404 4915 12 as as RB 40404 4915 13 early early RB 40404 4915 14 as as IN 40404 4915 15 the the DT 40404 4915 16 close close NN 40404 4915 17 of of IN 40404 4915 18 the the DT 40404 4915 19 Miocene Miocene NNP 40404 4915 20 the the DT 40404 4915 21 shore shore NN 40404 4915 22 lines line NNS 40404 4915 23 of of IN 40404 4915 24 the the DT 40404 4915 25 Atlantic Atlantic NNP 40404 4915 26 and and CC 40404 4915 27 Gulf Gulf NNP 40404 4915 28 states state NNS 40404 4915 29 had have VBD 40404 4915 30 reached reach VBN 40404 4915 31 well well RB 40404 4915 32 - - HYPH 40404 4915 33 nigh nigh VB 40404 4915 34 their -PRON- PRP$ 40404 4915 35 present present JJ 40404 4915 36 place place NN 40404 4915 37 . . . 40404 4916 1 Louisiana Louisiana NNP 40404 4916 2 and and CC 40404 4916 3 Florida Florida NNP 40404 4916 4 were be VBD 40404 4916 5 the the DT 40404 4916 6 last last JJ 40404 4916 7 areas area NNS 40404 4916 8 to to TO 40404 4916 9 emerge emerge VB 40404 4916 10 wholly wholly RB 40404 4916 11 from from IN 40404 4916 12 the the DT 40404 4916 13 sea,--Florida sea,--florida NN 40404 4916 14 being be VBG 40404 4916 15 formed form VBN 40404 4916 16 by by IN 40404 4916 17 a a DT 40404 4916 18 broad broad JJ 40404 4916 19 transverse transverse JJ 40404 4916 20 upwarp upwarp JJ 40404 4916 21 of of IN 40404 4916 22 the the DT 40404 4916 23 continental continental JJ 40404 4916 24 delta delta NN 40404 4916 25 at at IN 40404 4916 26 the the DT 40404 4916 27 opening opening NN 40404 4916 28 of of IN 40404 4916 29 the the DT 40404 4916 30 Miocene Miocene NNP 40404 4916 31 , , , 40404 4916 32 forming form VBG 40404 4916 33 first first RB 40404 4916 34 an an DT 40404 4916 35 island island NN 40404 4916 36 , , , 40404 4916 37 which which WDT 40404 4916 38 afterwards afterwards RB 40404 4916 39 was be VBD 40404 4916 40 joined join VBN 40404 4916 41 to to IN 40404 4916 42 the the DT 40404 4916 43 mainland mainland NN 40404 4916 44 . . . 40404 4917 1 = = NFP 40404 4917 2 The the DT 40404 4917 3 Pacific Pacific NNP 40404 4917 4 coast.= coast.= CD 40404 4917 5 Tertiary tertiary JJ 40404 4917 6 deposits deposit NNS 40404 4917 7 with with IN 40404 4917 8 marine marine JJ 40404 4917 9 fossils fossil NNS 40404 4917 10 occur occur VBP 40404 4917 11 along along IN 40404 4917 12 the the DT 40404 4917 13 western western JJ 40404 4917 14 foothills foothill NNS 40404 4917 15 of of IN 40404 4917 16 the the DT 40404 4917 17 Sierra Sierra NNP 40404 4917 18 Nevadas Nevadas NNP 40404 4917 19 , , , 40404 4917 20 and and CC 40404 4917 21 are be VBP 40404 4917 22 crumpled crumple VBN 40404 4917 23 among among IN 40404 4917 24 the the DT 40404 4917 25 mountain mountain NN 40404 4917 26 masses masse NNS 40404 4917 27 of of IN 40404 4917 28 the the DT 40404 4917 29 Coast Coast NNP 40404 4917 30 Ranges Ranges NNPS 40404 4917 31 ; ; : 40404 4917 32 it -PRON- PRP 40404 4917 33 is be VBZ 40404 4917 34 hence hence RB 40404 4917 35 inferred infer VBN 40404 4917 36 that that IN 40404 4917 37 the the DT 40404 4917 38 Great Great NNP 40404 4917 39 Valley Valley NNP 40404 4917 40 of of IN 40404 4917 41 California California NNP 40404 4917 42 was be VBD 40404 4917 43 then then RB 40404 4917 44 a a DT 40404 4917 45 border border NN 40404 4917 46 sea sea NN 40404 4917 47 , , , 40404 4917 48 separated separate VBN 40404 4917 49 from from IN 40404 4917 50 the the DT 40404 4917 51 ocean ocean NN 40404 4917 52 by by IN 40404 4917 53 a a DT 40404 4917 54 chain chain NN 40404 4917 55 of of IN 40404 4917 56 mountainous mountainous JJ 40404 4917 57 islands island NNS 40404 4917 58 which which WDT 40404 4917 59 were be VBD 40404 4917 60 upridged upridge VBN 40404 4917 61 into into IN 40404 4917 62 the the DT 40404 4917 63 Coast Coast NNP 40404 4917 64 Ranges Ranges NNPS 40404 4917 65 at at IN 40404 4917 66 a a DT 40404 4917 67 still still RB 40404 4917 68 later later JJ 40404 4917 69 time time NN 40404 4917 70 . . . 40404 4918 1 Tertiary tertiary JJ 40404 4918 2 marine marine JJ 40404 4918 3 strata strata NN 40404 4918 4 are be VBP 40404 4918 5 spread spread VBN 40404 4918 6 over over IN 40404 4918 7 the the DT 40404 4918 8 lower low JJR 40404 4918 9 Columbia Columbia NNP 40404 4918 10 valley valley NN 40404 4918 11 and and CC 40404 4918 12 that that DT 40404 4918 13 of of IN 40404 4918 14 Puget Puget NNP 40404 4918 15 Sound Sound NNP 40404 4918 16 , , , 40404 4918 17 showing show VBG 40404 4918 18 that that IN 40404 4918 19 the the DT 40404 4918 20 Pacific Pacific NNP 40404 4918 21 came come VBD 40404 4918 22 in in RP 40404 4918 23 broadly broadly RB 40404 4918 24 there there RB 40404 4918 25 . . . 40404 4919 1 = = NFP 40404 4919 2 The the DT 40404 4919 3 interior interior NN 40404 4919 4 of of IN 40404 4919 5 the the DT 40404 4919 6 western western JJ 40404 4919 7 United United NNP 40404 4919 8 States.= States.= NNP 40404 4919 9 The the DT 40404 4919 10 closing closing NN 40404 4919 11 stages stage NNS 40404 4919 12 of of IN 40404 4919 13 the the DT 40404 4919 14 Mesozoic Mesozoic NNP 40404 4919 15 were be VBD 40404 4919 16 marked mark VBN 40404 4919 17 , , , 40404 4919 18 as as IN 40404 4919 19 we -PRON- PRP 40404 4919 20 have have VBP 40404 4919 21 seen see VBN 40404 4919 22 , , , 40404 4919 23 by by IN 40404 4919 24 the the DT 40404 4919 25 upheaval upheaval NN 40404 4919 26 of of IN 40404 4919 27 the the DT 40404 4919 28 Rocky Rocky NNP 40404 4919 29 Mountains Mountains NNPS 40404 4919 30 and and CC 40404 4919 31 other other JJ 40404 4919 32 western western JJ 40404 4919 33 ranges range NNS 40404 4919 34 . . . 40404 4920 1 The the DT 40404 4920 2 bases basis NNS 40404 4920 3 of of IN 40404 4920 4 the the DT 40404 4920 5 mountains mountain NNS 40404 4920 6 are be VBP 40404 4920 7 now now RB 40404 4920 8 skirted skirt VBN 40404 4920 9 by by IN 40404 4920 10 widespread widespread JJ 40404 4920 11 Tertiary tertiary JJ 40404 4920 12 deposits deposit NNS 40404 4920 13 , , , 40404 4920 14 which which WDT 40404 4920 15 form form VBP 40404 4920 16 the the DT 40404 4920 17 highest high JJS 40404 4920 18 strata strata NN 40404 4920 19 of of IN 40404 4920 20 the the DT 40404 4920 21 lofty lofty JJ 40404 4920 22 plateaus plateaus NN 40404 4920 23 from from IN 40404 4920 24 the the DT 40404 4920 25 level level NN 40404 4920 26 of of IN 40404 4920 27 whose whose WP$ 40404 4920 28 summits summit NNS 40404 4920 29 the the DT 40404 4920 30 mountains mountain NNS 40404 4920 31 rise rise VBP 40404 4920 32 . . . 40404 4921 1 Like like IN 40404 4921 2 the the DT 40404 4921 3 recent recent JJ 40404 4921 4 alluvium alluvium NN 40404 4921 5 of of IN 40404 4921 6 the the DT 40404 4921 7 Great Great NNP 40404 4921 8 Valley Valley NNP 40404 4921 9 of of IN 40404 4921 10 California California NNP 40404 4921 11 ( ( -LRB- 40404 4921 12 p. p. NN 40404 4921 13 101 101 CD 40404 4921 14 ) ) -RRB- 40404 4921 15 , , , 40404 4921 16 these these DT 40404 4921 17 deposits deposit NNS 40404 4921 18 imply imply VBP 40404 4921 19 low low RB 40404 4921 20 - - HYPH 40404 4921 21 lying lie VBG 40404 4921 22 lands land NNS 40404 4921 23 when when WRB 40404 4921 24 they -PRON- PRP 40404 4921 25 were be VBD 40404 4921 26 laid lay VBN 40404 4921 27 , , , 40404 4921 28 and and CC 40404 4921 29 therefore therefore RB 40404 4921 30 at at IN 40404 4921 31 that that DT 40404 4921 32 time time NN 40404 4921 33 the the DT 40404 4921 34 mountains mountain NNS 40404 4921 35 rose rise VBD 40404 4921 36 from from IN 40404 4921 37 near near IN 40404 4921 38 sea sea NN 40404 4921 39 level level NN 40404 4921 40 . . . 40404 4922 1 But but CC 40404 4922 2 the the DT 40404 4922 3 height height NN 40404 4922 4 at at IN 40404 4922 5 which which WDT 40404 4922 6 the the DT 40404 4922 7 Tertiary tertiary JJ 40404 4922 8 strata strata NN 40404 4922 9 now now RB 40404 4922 10 stand stand VBP 40404 4922 11 -- -- : 40404 4922 12 five five CD 40404 4922 13 thousand thousand CD 40404 4922 14 feet foot NNS 40404 4922 15 above above IN 40404 4922 16 the the DT 40404 4922 17 sea sea NN 40404 4922 18 at at IN 40404 4922 19 Denver Denver NNP 40404 4922 20 , , , 40404 4922 21 and and CC 40404 4922 22 twice twice PDT 40404 4922 23 that that DT 40404 4922 24 height height NN 40404 4922 25 in in IN 40404 4922 26 the the DT 40404 4922 27 plateaus plateaus NN 40404 4922 28 of of IN 40404 4922 29 southern southern JJ 40404 4922 30 Utah Utah NNP 40404 4922 31 -- -- : 40404 4922 32 proves prove VBZ 40404 4922 33 that that IN 40404 4922 34 the the DT 40404 4922 35 plateaus plateaus NN 40404 4922 36 of of IN 40404 4922 37 which which WDT 40404 4922 38 the the DT 40404 4922 39 Tertiary tertiary JJ 40404 4922 40 strata strata NN 40404 4922 41 form form VBP 40404 4922 42 a a DT 40404 4922 43 part part NN 40404 4922 44 have have VBP 40404 4922 45 been be VBN 40404 4922 46 uplifted uplift VBN 40404 4922 47 during during IN 40404 4922 48 the the DT 40404 4922 49 Cenozoic Cenozoic NNP 40404 4922 50 . . . 40404 4923 1 During during IN 40404 4923 2 their -PRON- PRP$ 40404 4923 3 uplift uplift NN 40404 4923 4 , , , 40404 4923 5 warping warp VBG 40404 4923 6 formed form VBN 40404 4923 7 extensive extensive JJ 40404 4923 8 basins basin NNS 40404 4923 9 both both CC 40404 4923 10 east east NNP 40404 4923 11 and and CC 40404 4923 12 west west NN 40404 4923 13 of of IN 40404 4923 14 the the DT 40404 4923 15 Rockies Rockies NNPS 40404 4923 16 , , , 40404 4923 17 and and CC 40404 4923 18 in in IN 40404 4923 19 these these DT 40404 4923 20 basins basin NNS 40404 4923 21 stream stream NN 40404 4923 22 - - HYPH 40404 4923 23 swept sweep VBN 40404 4923 24 and and CC 40404 4923 25 lake lake NN 40404 4923 26 - - HYPH 40404 4923 27 laid lay VBN 40404 4923 28 waste waste NN 40404 4923 29 gathered gather VBD 40404 4923 30 to to IN 40404 4923 31 depths depth NNS 40404 4923 32 of of IN 40404 4923 33 hundreds hundred NNS 40404 4923 34 and and CC 40404 4923 35 thousands thousand NNS 40404 4923 36 of of IN 40404 4923 37 feet foot NNS 40404 4923 38 , , , 40404 4923 39 as as IN 40404 4923 40 it -PRON- PRP 40404 4923 41 is be VBZ 40404 4923 42 accumulating accumulate VBG 40404 4923 43 at at IN 40404 4923 44 present present NN 40404 4923 45 in in IN 40404 4923 46 the the DT 40404 4923 47 Great Great NNP 40404 4923 48 Valley Valley NNP 40404 4923 49 of of IN 40404 4923 50 California California NNP 40404 4923 51 and and CC 40404 4923 52 on on IN 40404 4923 53 the the DT 40404 4923 54 river river NN 40404 4923 55 plains plain NNS 40404 4923 56 of of IN 40404 4923 57 Turkestan Turkestan NNP 40404 4923 58 ( ( -LRB- 40404 4923 59 p. p. NN 40404 4923 60 103 103 CD 40404 4923 61 ) ) -RRB- 40404 4923 62 . . . 40404 4924 1 The the DT 40404 4924 2 Tertiary Tertiary NNP 40404 4924 3 river river NN 40404 4924 4 deposits deposit NNS 40404 4924 5 of of IN 40404 4924 6 the the DT 40404 4924 7 High High NNP 40404 4924 8 Plains Plains NNPS 40404 4924 9 have have VBP 40404 4924 10 already already RB 40404 4924 11 been be VBN 40404 4924 12 described describe VBN 40404 4924 13 ( ( -LRB- 40404 4924 14 p. p. NN 40404 4924 15 100 100 CD 40404 4924 16 ) ) -RRB- 40404 4924 17 . . . 40404 4925 1 How how WRB 40404 4925 2 widespread widespread JJ 40404 4925 3 are be VBP 40404 4925 4 these these DT 40404 4925 5 ancient ancient JJ 40404 4925 6 river river NN 40404 4925 7 plains plain NNS 40404 4925 8 and and CC 40404 4925 9 beds bed NNS 40404 4925 10 of of IN 40404 4925 11 fresh fresh JJ 40404 4925 12 - - HYPH 40404 4925 13 water water NN 40404 4925 14 lakes lake NNS 40404 4925 15 may may MD 40404 4925 16 be be VB 40404 4925 17 seen see VBN 40404 4925 18 in in IN 40404 4925 19 the the DT 40404 4925 20 map map NN 40404 4925 21 of of IN 40404 4925 22 Figure Figure NNP 40404 4925 23 260 260 CD 40404 4925 24 . . . 40404 4926 1 [ [ -LRB- 40404 4926 2 Illustration illustration NN 40404 4926 3 : : : 40404 4926 4 Fig Fig NNP 40404 4926 5 . . . 40404 4927 1 340 340 CD 40404 4927 2 . . . 40404 4928 1 View View NNP 40404 4928 2 in in IN 40404 4928 3 the the DT 40404 4928 4 Bad Bad NNP 40404 4928 5 Lands Lands NNPS 40404 4928 6 of of IN 40404 4928 7 South South NNP 40404 4928 8 Dakota Dakota NNP 40404 4928 9 ] ] -RRB- 40404 4928 10 = = NFP 40404 4928 11 The the DT 40404 4928 12 Bad bad JJ 40404 4928 13 Lands.= Lands.= NNP 40404 4928 14 In in IN 40404 4928 15 several several JJ 40404 4928 16 of of IN 40404 4928 17 the the DT 40404 4928 18 western western JJ 40404 4928 19 states state NNS 40404 4928 20 large large JJ 40404 4928 21 areas area NNS 40404 4928 22 of of IN 40404 4928 23 Tertiary tertiary JJ 40404 4928 24 fresh fresh JJ 40404 4928 25 - - HYPH 40404 4928 26 water water NN 40404 4928 27 deposits deposit NNS 40404 4928 28 have have VBP 40404 4928 29 been be VBN 40404 4928 30 dissected dissect VBN 40404 4928 31 to to IN 40404 4928 32 a a DT 40404 4928 33 maze maze NN 40404 4928 34 of of IN 40404 4928 35 hills hill NNS 40404 4928 36 whose whose WP$ 40404 4928 37 steep steep JJ 40404 4928 38 sides side NNS 40404 4928 39 are be VBP 40404 4928 40 cut cut VBN 40404 4928 41 with with IN 40404 4928 42 innumerable innumerable JJ 40404 4928 43 ravines ravine NNS 40404 4928 44 . . . 40404 4929 1 The the DT 40404 4929 2 deposits deposit NNS 40404 4929 3 of of IN 40404 4929 4 these these DT 40404 4929 5 ancient ancient JJ 40404 4929 6 river river NN 40404 4929 7 plains plain NNS 40404 4929 8 and and CC 40404 4929 9 lake lake NN 40404 4929 10 beds bed NNS 40404 4929 11 are be VBP 40404 4929 12 little little RB 40404 4929 13 cemented cemented JJ 40404 4929 14 and and CC 40404 4929 15 because because IN 40404 4929 16 of of IN 40404 4929 17 the the DT 40404 4929 18 dryness dryness NN 40404 4929 19 of of IN 40404 4929 20 the the DT 40404 4929 21 climate climate NN 40404 4929 22 are be VBP 40404 4929 23 unprotected unprotecte VBN 40404 4929 24 by by IN 40404 4929 25 vegetation vegetation NN 40404 4929 26 ; ; : 40404 4929 27 hence hence RB 40404 4929 28 they -PRON- PRP 40404 4929 29 are be VBP 40404 4929 30 easily easily RB 40404 4929 31 carved carve VBN 40404 4929 32 by by IN 40404 4929 33 the the DT 40404 4929 34 wet wet JJ 40404 4929 35 - - HYPH 40404 4929 36 weather weather NN 40404 4929 37 rills rill NNS 40404 4929 38 of of IN 40404 4929 39 scanty scanty NN 40404 4929 40 and and CC 40404 4929 41 infrequent infrequent NN 40404 4929 42 rains rain NNS 40404 4929 43 . . . 40404 4930 1 These these DT 40404 4930 2 waterless waterless NN 40404 4930 3 , , , 40404 4930 4 rugged rugged JJ 40404 4930 5 surfaces surface NNS 40404 4930 6 were be VBD 40404 4930 7 named name VBN 40404 4930 8 by by IN 40404 4930 9 the the DT 40404 4930 10 early early JJ 40404 4930 11 French french JJ 40404 4930 12 explorers explorer NNS 40404 4930 13 the the DT 40404 4930 14 _ _ NNP 40404 4930 15 Bad Bad NNP 40404 4930 16 Lands Lands NNPS 40404 4930 17 _ _ NNP 40404 4930 18 because because IN 40404 4930 19 they -PRON- PRP 40404 4930 20 were be VBD 40404 4930 21 found find VBN 40404 4930 22 so so RB 40404 4930 23 difficult difficult JJ 40404 4930 24 to to TO 40404 4930 25 traverse traverse VB 40404 4930 26 . . . 40404 4931 1 The the DT 40404 4931 2 strata strata NN 40404 4931 3 of of IN 40404 4931 4 the the DT 40404 4931 5 Bad Bad NNP 40404 4931 6 Lands Lands NNPS 40404 4931 7 contain contain VBP 40404 4931 8 vast vast JJ 40404 4931 9 numbers number NNS 40404 4931 10 of of IN 40404 4931 11 the the DT 40404 4931 12 remains remain NNS 40404 4931 13 of of IN 40404 4931 14 the the DT 40404 4931 15 animals animal NNS 40404 4931 16 of of IN 40404 4931 17 Tertiary Tertiary NNP 40404 4931 18 times time NNS 40404 4931 19 , , , 40404 4931 20 and and CC 40404 4931 21 the the DT 40404 4931 22 large large JJ 40404 4931 23 amount amount NN 40404 4931 24 of of IN 40404 4931 25 barren barren JJ 40404 4931 26 surface surface NN 40404 4931 27 exposed expose VBN 40404 4931 28 to to IN 40404 4931 29 view view NN 40404 4931 30 makes make VBZ 40404 4931 31 search search NN 40404 4931 32 for for IN 40404 4931 33 fossils fossil NNS 40404 4931 34 easy easy JJ 40404 4931 35 and and CC 40404 4931 36 fruitful fruitful JJ 40404 4931 37 . . . 40404 4932 1 These these DT 40404 4932 2 desolate desolate JJ 40404 4932 3 tracts tract NNS 40404 4932 4 are be VBP 40404 4932 5 therefore therefore RB 40404 4932 6 frequently frequently RB 40404 4932 7 visited visit VBN 40404 4932 8 by by IN 40404 4932 9 scientific scientific JJ 40404 4932 10 collecting collecting NN 40404 4932 11 expeditions expedition NNS 40404 4932 12 . . . 40404 4933 1 = = NFP 40404 4933 2 Mountain Mountain NNP 40404 4933 3 making make VBG 40404 4933 4 in in IN 40404 4933 5 the the DT 40404 4933 6 Tertiary.= tertiary.= XX 40404 4933 7 The the DT 40404 4933 8 Tertiary Tertiary NNP 40404 4933 9 period period NN 40404 4933 10 included include VBD 40404 4933 11 epochs epoch NNS 40404 4933 12 when when WRB 40404 4933 13 the the DT 40404 4933 14 earth earth NN 40404 4933 15 's 's POS 40404 4933 16 crust crust NN 40404 4933 17 was be VBD 40404 4933 18 singularly singularly RB 40404 4933 19 unquiet unquiet JJ 40404 4933 20 . . . 40404 4934 1 From from IN 40404 4934 2 time time NN 40404 4934 3 to to IN 40404 4934 4 time time NN 40404 4934 5 on on IN 40404 4934 6 all all PDT 40404 4934 7 the the DT 40404 4934 8 continents continent NNS 40404 4934 9 subterranean subterranean NNP 40404 4934 10 forces force NNS 40404 4934 11 gathered gather VBD 40404 4934 12 head head NN 40404 4934 13 , , , 40404 4934 14 and and CC 40404 4934 15 the the DT 40404 4934 16 crust crust NN 40404 4934 17 was be VBD 40404 4934 18 bent bent JJ 40404 4934 19 and and CC 40404 4934 20 broken broken JJ 40404 4934 21 and and CC 40404 4934 22 upridged upridge VBN 40404 4934 23 in in IN 40404 4934 24 lofty lofty JJ 40404 4934 25 mountains mountain NNS 40404 4934 26 . . . 40404 4935 1 The the DT 40404 4935 2 Sierra Sierra NNP 40404 4935 3 Nevada Nevada NNP 40404 4935 4 range range NN 40404 4935 5 was be VBD 40404 4935 6 formed form VBN 40404 4935 7 , , , 40404 4935 8 as as IN 40404 4935 9 we -PRON- PRP 40404 4935 10 have have VBP 40404 4935 11 seen see VBN 40404 4935 12 , , , 40404 4935 13 by by IN 40404 4935 14 strata strata NN 40404 4935 15 crumpling crumple VBG 40404 4935 16 at at IN 40404 4935 17 the the DT 40404 4935 18 end end NN 40404 4935 19 of of IN 40404 4935 20 the the DT 40404 4935 21 Jurassic Jurassic NNP 40404 4935 22 . . . 40404 4936 1 But but CC 40404 4936 2 since since IN 40404 4936 3 that that DT 40404 4936 4 remote remote JJ 40404 4936 5 time time NN 40404 4936 6 the the DT 40404 4936 7 upfolded upfolded JJ 40404 4936 8 mountains mountain NNS 40404 4936 9 had have VBD 40404 4936 10 been be VBN 40404 4936 11 worn wear VBN 40404 4936 12 to to IN 40404 4936 13 plains plain NNS 40404 4936 14 and and CC 40404 4936 15 hilly hilly RB 40404 4936 16 uplands upland NNS 40404 4936 17 , , , 40404 4936 18 the the DT 40404 4936 19 remnants remnant NNS 40404 4936 20 of of IN 40404 4936 21 whose whose WP$ 40404 4936 22 uplifted uplifted JJ 40404 4936 23 erosion erosion NN 40404 4936 24 surfaces surface NNS 40404 4936 25 may may MD 40404 4936 26 now now RB 40404 4936 27 be be VB 40404 4936 28 traced trace VBN 40404 4936 29 along along IN 40404 4936 30 the the DT 40404 4936 31 western western JJ 40404 4936 32 mountain mountain NN 40404 4936 33 slopes slope NNS 40404 4936 34 . . . 40404 4937 1 Beginning begin VBG 40404 4937 2 late late RB 40404 4937 3 in in IN 40404 4937 4 the the DT 40404 4937 5 Tertiary Tertiary NNP 40404 4937 6 , , , 40404 4937 7 the the DT 40404 4937 8 region region NN 40404 4937 9 was be VBD 40404 4937 10 again again RB 40404 4937 11 affected affect VBN 40404 4937 12 by by IN 40404 4937 13 mountain mountain NN 40404 4937 14 - - HYPH 40404 4937 15 making make VBG 40404 4937 16 movements movement NNS 40404 4937 17 . . . 40404 4938 1 A a DT 40404 4938 2 series series NN 40404 4938 3 of of IN 40404 4938 4 displacements displacement NNS 40404 4938 5 along along IN 40404 4938 6 a a DT 40404 4938 7 profound profound JJ 40404 4938 8 fault fault NN 40404 4938 9 on on IN 40404 4938 10 the the DT 40404 4938 11 eastern eastern JJ 40404 4938 12 side side NN 40404 4938 13 tilted tilt VBD 40404 4938 14 the the DT 40404 4938 15 enormous enormous JJ 40404 4938 16 earth earth NN 40404 4938 17 block block NN 40404 4938 18 of of IN 40404 4938 19 the the DT 40404 4938 20 Sierras Sierras NNPS 40404 4938 21 to to IN 40404 4938 22 the the DT 40404 4938 23 west west NN 40404 4938 24 , , , 40404 4938 25 lifting lift VBG 40404 4938 26 its -PRON- PRP$ 40404 4938 27 eastern eastern JJ 40404 4938 28 edge edge NN 40404 4938 29 to to TO 40404 4938 30 form form VB 40404 4938 31 the the DT 40404 4938 32 lofty lofty NNP 40404 4938 33 crest crest NNP 40404 4938 34 and and CC 40404 4938 35 giving give VBG 40404 4938 36 to to IN 40404 4938 37 the the DT 40404 4938 38 range range NN 40404 4938 39 a a DT 40404 4938 40 steep steep JJ 40404 4938 41 eastern eastern JJ 40404 4938 42 front front NN 40404 4938 43 and and CC 40404 4938 44 a a DT 40404 4938 45 gentle gentle JJ 40404 4938 46 descent descent NN 40404 4938 47 toward toward IN 40404 4938 48 the the DT 40404 4938 49 Pacific Pacific NNP 40404 4938 50 . . . 40404 4939 1 The the DT 40404 4939 2 Coast Coast NNP 40404 4939 3 Ranges Ranges NNPS 40404 4939 4 also also RB 40404 4939 5 have have VBP 40404 4939 6 had have VBN 40404 4939 7 a a DT 40404 4939 8 complex complex JJ 40404 4939 9 history history NN 40404 4939 10 with with IN 40404 4939 11 many many JJ 40404 4939 12 vicissitudes vicissitude NNS 40404 4939 13 . . . 40404 4940 1 The the DT 40404 4940 2 earliest early JJS 40404 4940 3 foldings folding NNS 40404 4940 4 of of IN 40404 4940 5 their -PRON- PRP$ 40404 4940 6 strata strata NN 40404 4940 7 belong belong VBP 40404 4940 8 to to IN 40404 4940 9 the the DT 40404 4940 10 close close NN 40404 4940 11 of of IN 40404 4940 12 the the DT 40404 4940 13 Jurassic Jurassic NNP 40404 4940 14 , , , 40404 4940 15 but but CC 40404 4940 16 it -PRON- PRP 40404 4940 17 was be VBD 40404 4940 18 not not RB 40404 4940 19 until until IN 40404 4940 20 the the DT 40404 4940 21 end end NN 40404 4940 22 of of IN 40404 4940 23 the the DT 40404 4940 24 Miocene Miocene NNP 40404 4940 25 that that IN 40404 4940 26 the the DT 40404 4940 27 line line NN 40404 4940 28 of of IN 40404 4940 29 mountainous mountainous JJ 40404 4940 30 islands island NNS 40404 4940 31 and and CC 40404 4940 32 the the DT 40404 4940 33 heavy heavy JJ 40404 4940 34 sediments sediment NNS 40404 4940 35 which which WDT 40404 4940 36 had have VBD 40404 4940 37 been be VBN 40404 4940 38 deposited deposit VBN 40404 4940 39 on on IN 40404 4940 40 their -PRON- PRP$ 40404 4940 41 submerged submerged JJ 40404 4940 42 flanks flank NNS 40404 4940 43 were be VBD 40404 4940 44 crushed crush VBN 40404 4940 45 into into IN 40404 4940 46 a a DT 40404 4940 47 continuous continuous JJ 40404 4940 48 mountain mountain NN 40404 4940 49 chain chain NN 40404 4940 50 . . . 40404 4941 1 Thick Thick NNP 40404 4941 2 Pliocene Pliocene NNP 40404 4941 3 beds bed VBZ 40404 4941 4 upon upon IN 40404 4941 5 their -PRON- PRP$ 40404 4941 6 sides side NNS 40404 4941 7 prove prove VBP 40404 4941 8 that that IN 40404 4941 9 they -PRON- PRP 40404 4941 10 were be VBD 40404 4941 11 depressed depressed JJ 40404 4941 12 to to IN 40404 4941 13 near near IN 40404 4941 14 sea sea NN 40404 4941 15 level level NN 40404 4941 16 during during IN 40404 4941 17 the the DT 40404 4941 18 later later JJ 40404 4941 19 Tertiary Tertiary NNP 40404 4941 20 . . . 40404 4942 1 At at IN 40404 4942 2 the the DT 40404 4942 3 close close NN 40404 4942 4 of of IN 40404 4942 5 the the DT 40404 4942 6 Pliocene Pliocene NNP 40404 4942 7 the the DT 40404 4942 8 Coast Coast NNP 40404 4942 9 Ranges Ranges NNPS 40404 4942 10 rose rise VBD 40404 4942 11 along along IN 40404 4942 12 with with IN 40404 4942 13 the the DT 40404 4942 14 upheaval upheaval NN 40404 4942 15 of of IN 40404 4942 16 the the DT 40404 4942 17 Sierra Sierra NNP 40404 4942 18 , , , 40404 4942 19 and and CC 40404 4942 20 their -PRON- PRP$ 40404 4942 21 gradual gradual JJ 40404 4942 22 uplift uplift NN 40404 4942 23 has have VBZ 40404 4942 24 continued continue VBN 40404 4942 25 to to IN 40404 4942 26 the the DT 40404 4942 27 present present JJ 40404 4942 28 time time NN 40404 4942 29 . . . 40404 4943 1 The the DT 40404 4943 2 numerous numerous JJ 40404 4943 3 north north NN 40404 4943 4 - - HYPH 40404 4943 5 south south NN 40404 4943 6 ranges range NNS 40404 4943 7 of of IN 40404 4943 8 the the DT 40404 4943 9 Great Great NNP 40404 4943 10 Basin Basin NNP 40404 4943 11 and and CC 40404 4943 12 the the DT 40404 4943 13 Mount Mount NNP 40404 4943 14 Saint Saint NNP 40404 4943 15 Elias Elias NNPS 40404 4943 16 range range VBP 40404 4943 17 of of IN 40404 4943 18 Alaska Alaska NNP 40404 4943 19 were be VBD 40404 4943 20 also also RB 40404 4943 21 uptilted uptilted JJ 40404 4943 22 during during IN 40404 4943 23 the the DT 40404 4943 24 Tertiary Tertiary NNP 40404 4943 25 . . . 40404 4944 1 During during IN 40404 4944 2 the the DT 40404 4944 3 Tertiary tertiary JJ 40404 4944 4 period period NN 40404 4944 5 many many JJ 40404 4944 6 of of IN 40404 4944 7 the the DT 40404 4944 8 loftiest lofty JJS 40404 4944 9 mountains mountain NNS 40404 4944 10 of of IN 40404 4944 11 the the DT 40404 4944 12 earth earth NN 40404 4944 13 -- -- : 40404 4944 14 the the DT 40404 4944 15 Alps Alps NNPS 40404 4944 16 , , , 40404 4944 17 the the DT 40404 4944 18 Apennines Apennines NNPS 40404 4944 19 , , , 40404 4944 20 the the DT 40404 4944 21 Pyrenees Pyrenees NNPS 40404 4944 22 , , , 40404 4944 23 the the DT 40404 4944 24 Atlas Atlas NNP 40404 4944 25 , , , 40404 4944 26 the the DT 40404 4944 27 Caucasus Caucasus NNP 40404 4944 28 , , , 40404 4944 29 and and CC 40404 4944 30 the the DT 40404 4944 31 Himalayas Himalayas NNP 40404 4944 32 -- -- : 40404 4944 33 received receive VBD 40404 4944 34 the the DT 40404 4944 35 uplift uplift NN 40404 4944 36 to to TO 40404 4944 37 which which WDT 40404 4944 38 they -PRON- PRP 40404 4944 39 owe owe VBP 40404 4944 40 most most JJS 40404 4944 41 of of IN 40404 4944 42 their -PRON- PRP$ 40404 4944 43 colossal colossal JJ 40404 4944 44 bulk bulk NN 40404 4944 45 and and CC 40404 4944 46 height height NN 40404 4944 47 , , , 40404 4944 48 as as IN 40404 4944 49 portions portion NNS 40404 4944 50 of of IN 40404 4944 51 the the DT 40404 4944 52 Tertiary Tertiary NNP 40404 4944 53 sea sea NN 40404 4944 54 beds bed NNS 40404 4944 55 now now RB 40404 4944 56 found find VBD 40404 4944 57 high high RB 40404 4944 58 upon upon IN 40404 4944 59 their -PRON- PRP$ 40404 4944 60 flanks flank NNS 40404 4944 61 attest attest VBP 40404 4944 62 . . . 40404 4945 1 In in IN 40404 4945 2 the the DT 40404 4945 3 Himalayas Himalayas NNP 40404 4945 4 , , , 40404 4945 5 Tertiary tertiary JJ 40404 4945 6 marine marine NN 40404 4945 7 limestones limestone NNS 40404 4945 8 occur occur VBP 40404 4945 9 sixteen sixteen CD 40404 4945 10 thousand thousand CD 40404 4945 11 five five CD 40404 4945 12 hundred hundred CD 40404 4945 13 feet foot NNS 40404 4945 14 above above IN 40404 4945 15 sea sea NN 40404 4945 16 level level NN 40404 4945 17 . . . 40404 4946 1 = = NFP 40404 4946 2 Volcanic volcanic JJ 40404 4946 3 activity activity NN 40404 4946 4 in in IN 40404 4946 5 the the DT 40404 4946 6 tertiary.= tertiary.= NN 40404 4946 7 The the DT 40404 4946 8 vast vast JJ 40404 4946 9 deformations deformation NNS 40404 4946 10 of of IN 40404 4946 11 the the DT 40404 4946 12 Tertiary Tertiary NNP 40404 4946 13 were be VBD 40404 4946 14 accompanied accompany VBN 40404 4946 15 on on IN 40404 4946 16 a a DT 40404 4946 17 corresponding corresponding JJ 40404 4946 18 scale scale NN 40404 4946 19 by by IN 40404 4946 20 outpourings outpouring NNS 40404 4946 21 of of IN 40404 4946 22 lava lava NN 40404 4946 23 , , , 40404 4946 24 the the DT 40404 4946 25 outburst outburst NN 40404 4946 26 of of IN 40404 4946 27 volcanoes volcano NNS 40404 4946 28 , , , 40404 4946 29 and and CC 40404 4946 30 the the DT 40404 4946 31 intrusion intrusion NN 40404 4946 32 of of IN 40404 4946 33 molten molten JJ 40404 4946 34 masses masse NNS 40404 4946 35 within within IN 40404 4946 36 the the DT 40404 4946 37 crust crust NN 40404 4946 38 . . . 40404 4947 1 In in IN 40404 4947 2 the the DT 40404 4947 3 Sierra Sierra NNP 40404 4947 4 Nevadas Nevadas NNP 40404 4947 5 the the DT 40404 4947 6 Miocene Miocene NNP 40404 4947 7 river river NN 40404 4947 8 gravels gravel NNS 40404 4947 9 of of IN 40404 4947 10 the the DT 40404 4947 11 valleys valley NNS 40404 4947 12 of of IN 40404 4947 13 the the DT 40404 4947 14 western western JJ 40404 4947 15 slope slope NN 40404 4947 16 , , , 40404 4947 17 with with IN 40404 4947 18 their -PRON- PRP$ 40404 4947 19 placer placer NN 40404 4947 20 deposits deposit NNS 40404 4947 21 of of IN 40404 4947 22 gold gold NN 40404 4947 23 , , , 40404 4947 24 were be VBD 40404 4947 25 buried bury VBN 40404 4947 26 beneath beneath IN 40404 4947 27 streams stream NNS 40404 4947 28 of of IN 40404 4947 29 lava lava NN 40404 4947 30 and and CC 40404 4947 31 beds bed NNS 40404 4947 32 of of IN 40404 4947 33 tuff tuff NNP 40404 4947 34 ( ( -LRB- 40404 4947 35 Fig fig NN 40404 4947 36 . . . 40404 4948 1 258 258 CD 40404 4948 2 ) ) -RRB- 40404 4948 3 . . . 40404 4949 1 Volcanoes volcano NNS 40404 4949 2 broke break VBD 40404 4949 3 forth forth RB 40404 4949 4 along along IN 40404 4949 5 the the DT 40404 4949 6 Rocky Rocky NNP 40404 4949 7 Mountains Mountains NNPS 40404 4949 8 and and CC 40404 4949 9 on on IN 40404 4949 10 the the DT 40404 4949 11 plateaus plateaus NN 40404 4949 12 of of IN 40404 4949 13 Utah Utah NNP 40404 4949 14 , , , 40404 4949 15 New New NNP 40404 4949 16 Mexico Mexico NNP 40404 4949 17 , , , 40404 4949 18 and and CC 40404 4949 19 Arizona Arizona NNP 40404 4949 20 . . . 40404 4950 1 Mount Mount NNP 40404 4950 2 Shasta Shasta NNP 40404 4950 3 and and CC 40404 4950 4 the the DT 40404 4950 5 immense immense JJ 40404 4950 6 volcanic volcanic JJ 40404 4950 7 piles pile NNS 40404 4950 8 of of IN 40404 4950 9 the the DT 40404 4950 10 Cascades Cascades NNP 40404 4950 11 date date NN 40404 4950 12 from from IN 40404 4950 13 this this DT 40404 4950 14 period period NN 40404 4950 15 . . . 40404 4951 1 The the DT 40404 4951 2 mountain mountain NN 40404 4951 3 basin basin NN 40404 4951 4 of of IN 40404 4951 5 the the DT 40404 4951 6 Yellowstone Yellowstone NNP 40404 4951 7 Park Park NNP 40404 4951 8 was be VBD 40404 4951 9 filled fill VBN 40404 4951 10 to to IN 40404 4951 11 a a DT 40404 4951 12 depth depth NN 40404 4951 13 of of IN 40404 4951 14 several several JJ 40404 4951 15 thousand thousand CD 40404 4951 16 feet foot NNS 40404 4951 17 with with IN 40404 4951 18 tuffs tuff NNS 40404 4951 19 and and CC 40404 4951 20 lavas lavas NN 40404 4951 21 , , , 40404 4951 22 the the DT 40404 4951 23 oldest old JJS 40404 4951 24 dating dating NN 40404 4951 25 as as RB 40404 4951 26 far far RB 40404 4951 27 back back RB 40404 4951 28 as as IN 40404 4951 29 the the DT 40404 4951 30 beginning beginning NN 40404 4951 31 of of IN 40404 4951 32 the the DT 40404 4951 33 Tertiary Tertiary NNP 40404 4951 34 . . . 40404 4952 1 Crandall crandall NN 40404 4952 2 volcano volcano NN 40404 4952 3 ( ( -LRB- 40404 4952 4 Fig fig NN 40404 4952 5 . . . 40404 4953 1 263 263 CD 40404 4953 2 ) ) -RRB- 40404 4953 3 was be VBD 40404 4953 4 reared rear VBN 40404 4953 5 in in IN 40404 4953 6 the the DT 40404 4953 7 Miocene Miocene NNP 40404 4953 8 and and CC 40404 4953 9 the the DT 40404 4953 10 latest late JJS 40404 4953 11 eruptions eruption NNS 40404 4953 12 of of IN 40404 4953 13 the the DT 40404 4953 14 Park Park NNP 40404 4953 15 are be VBP 40404 4953 16 far far RB 40404 4953 17 more more RBR 40404 4953 18 recent recent JJ 40404 4953 19 . . . 40404 4954 1 [ [ -LRB- 40404 4954 2 Illustration illustration NN 40404 4954 3 : : : 40404 4954 4 Fig Fig NNP 40404 4954 5 . . . 40404 4955 1 341 341 CD 40404 4955 2 . . . 40404 4956 1 Lava Lava NNP 40404 4956 2 Plateau Plateau NNP 40404 4956 3 with with IN 40404 4956 4 Lava Lava NNP 40404 4956 5 Domes Domes NNP 40404 4956 6 in in IN 40404 4956 7 the the DT 40404 4956 8 Distance Distance NNP 40404 4956 9 ] ] -RRB- 40404 4956 10 = = NFP 40404 4956 11 The the DT 40404 4956 12 Columbia Columbia NNP 40404 4956 13 and and CC 40404 4956 14 Snake Snake NNP 40404 4956 15 River River NNP 40404 4956 16 lavas.= lavas.= VBZ 40404 4956 17 Still still RB 40404 4956 18 more more RBR 40404 4956 19 important important JJ 40404 4956 20 is be VBZ 40404 4956 21 the the DT 40404 4956 22 plateau plateau NN 40404 4956 23 of of IN 40404 4956 24 lava lava NNP 40404 4956 25 , , , 40404 4956 26 more more JJR 40404 4956 27 than than IN 40404 4956 28 two two CD 40404 4956 29 hundred hundred CD 40404 4956 30 thousand thousand CD 40404 4956 31 square square JJ 40404 4956 32 miles mile NNS 40404 4956 33 in in IN 40404 4956 34 area area NN 40404 4956 35 , , , 40404 4956 36 extending extend VBG 40404 4956 37 from from IN 40404 4956 38 the the DT 40404 4956 39 Yellowstone Yellowstone NNP 40404 4956 40 Park Park NNP 40404 4956 41 to to IN 40404 4956 42 the the DT 40404 4956 43 Cascade Cascade NNP 40404 4956 44 Mountains Mountains NNPS 40404 4956 45 , , , 40404 4956 46 which which WDT 40404 4956 47 has have VBZ 40404 4956 48 been be VBN 40404 4956 49 built build VBN 40404 4956 50 from from IN 40404 4956 51 Miocene Miocene NNP 40404 4956 52 times time NNS 40404 4956 53 to to IN 40404 4956 54 the the DT 40404 4956 55 present present NN 40404 4956 56 . . . 40404 4957 1 Over over IN 40404 4957 2 this this DT 40404 4957 3 plateau plateau NN 40404 4957 4 , , , 40404 4957 5 which which WDT 40404 4957 6 occupies occupy VBZ 40404 4957 7 large large JJ 40404 4957 8 portions portion NNS 40404 4957 9 of of IN 40404 4957 10 Idaho Idaho NNP 40404 4957 11 , , , 40404 4957 12 Washington Washington NNP 40404 4957 13 , , , 40404 4957 14 and and CC 40404 4957 15 Oregon Oregon NNP 40404 4957 16 , , , 40404 4957 17 and and CC 40404 4957 18 extends extend VBZ 40404 4957 19 into into IN 40404 4957 20 northern northern JJ 40404 4957 21 California California NNP 40404 4957 22 and and CC 40404 4957 23 Nevada Nevada NNP 40404 4957 24 , , , 40404 4957 25 the the DT 40404 4957 26 country country NN 40404 4957 27 rock rock NN 40404 4957 28 is be VBZ 40404 4957 29 basaltic basaltic JJ 40404 4957 30 lava lava NN 40404 4957 31 . . . 40404 4958 1 For for IN 40404 4958 2 thousands thousand NNS 40404 4958 3 of of IN 40404 4958 4 square square NN 40404 4958 5 miles mile NNS 40404 4958 6 the the DT 40404 4958 7 surface surface NN 40404 4958 8 is be VBZ 40404 4958 9 a a DT 40404 4958 10 lava lava NN 40404 4958 11 plain plain NN 40404 4958 12 which which WDT 40404 4958 13 meets meet VBZ 40404 4958 14 the the DT 40404 4958 15 boundary boundary JJ 40404 4958 16 mountains mountain NNS 40404 4958 17 as as IN 40404 4958 18 a a DT 40404 4958 19 lake lake NN 40404 4958 20 or or CC 40404 4958 21 sea sea NN 40404 4958 22 meets meet VBZ 40404 4958 23 a a DT 40404 4958 24 rugged rugged JJ 40404 4958 25 and and CC 40404 4958 26 deeply deeply RB 40404 4958 27 indented indented JJ 40404 4958 28 coast coast NN 40404 4958 29 . . . 40404 4959 1 The the DT 40404 4959 2 floods flood NNS 40404 4959 3 of of IN 40404 4959 4 molten molten JJ 40404 4959 5 rock rock NN 40404 4959 6 spread spread VBD 40404 4959 7 up up RP 40404 4959 8 the the DT 40404 4959 9 mountain mountain NN 40404 4959 10 valleys valley NNS 40404 4959 11 for for IN 40404 4959 12 a a DT 40404 4959 13 score score NN 40404 4959 14 of of IN 40404 4959 15 miles mile NNS 40404 4959 16 and and CC 40404 4959 17 more more JJR 40404 4959 18 , , , 40404 4959 19 the the DT 40404 4959 20 intervening intervening NN 40404 4959 21 spurs spur VBZ 40404 4959 22 rising rise VBG 40404 4959 23 above above IN 40404 4959 24 the the DT 40404 4959 25 lava lava NN 40404 4959 26 like like IN 40404 4959 27 long long JJ 40404 4959 28 peninsulas peninsula NNS 40404 4959 29 , , , 40404 4959 30 while while IN 40404 4959 31 here here RB 40404 4959 32 and and CC 40404 4959 33 there there RB 40404 4959 34 an an DT 40404 4959 35 isolated isolated JJ 40404 4959 36 peak peak NN 40404 4959 37 was be VBD 40404 4959 38 left leave VBN 40404 4959 39 to to IN 40404 4959 40 tower tower NN 40404 4959 41 above above IN 40404 4959 42 the the DT 40404 4959 43 inundation inundation NN 40404 4959 44 like like IN 40404 4959 45 an an DT 40404 4959 46 island island NN 40404 4959 47 off off IN 40404 4959 48 a a DT 40404 4959 49 submerged submerged JJ 40404 4959 50 shore shore NN 40404 4959 51 . . . 40404 4960 1 The the DT 40404 4960 2 rivers river NNS 40404 4960 3 which which WDT 40404 4960 4 drain drain VBP 40404 4960 5 the the DT 40404 4960 6 plateau plateau NN 40404 4960 7 -- -- : 40404 4960 8 the the DT 40404 4960 9 Snake Snake NNP 40404 4960 10 , , , 40404 4960 11 the the DT 40404 4960 12 Columbia Columbia NNP 40404 4960 13 , , , 40404 4960 14 and and CC 40404 4960 15 their -PRON- PRP$ 40404 4960 16 tributaries tributary NNS 40404 4960 17 -- -- : 40404 4960 18 have have VBP 40404 4960 19 deeply deeply RB 40404 4960 20 trenched trench VBN 40404 4960 21 it -PRON- PRP 40404 4960 22 , , , 40404 4960 23 yet yet CC 40404 4960 24 their -PRON- PRP$ 40404 4960 25 canyons canyon NNS 40404 4960 26 , , , 40404 4960 27 which which WDT 40404 4960 28 reach reach VBP 40404 4960 29 the the DT 40404 4960 30 depth depth NN 40404 4960 31 of of IN 40404 4960 32 several several JJ 40404 4960 33 thousand thousand CD 40404 4960 34 feet foot NNS 40404 4960 35 , , , 40404 4960 36 have have VBP 40404 4960 37 not not RB 40404 4960 38 been be VBN 40404 4960 39 worn wear VBN 40404 4960 40 to to IN 40404 4960 41 the the DT 40404 4960 42 base base NN 40404 4960 43 of of IN 40404 4960 44 the the DT 40404 4960 45 lava lava NN 40404 4960 46 except except IN 40404 4960 47 near near IN 40404 4960 48 the the DT 40404 4960 49 margin margin NN 40404 4960 50 and and CC 40404 4960 51 where where WRB 40404 4960 52 they -PRON- PRP 40404 4960 53 cut cut VBD 40404 4960 54 the the DT 40404 4960 55 summits summit NNS 40404 4960 56 of of IN 40404 4960 57 mountains mountain NNS 40404 4960 58 drowned drown VBD 40404 4960 59 beneath beneath IN 40404 4960 60 the the DT 40404 4960 61 flood flood NN 40404 4960 62 . . . 40404 4961 1 Here here RB 40404 4961 2 and and CC 40404 4961 3 there there RB 40404 4961 4 the the DT 40404 4961 5 plateau plateau NN 40404 4961 6 has have VBZ 40404 4961 7 been be VBN 40404 4961 8 deformed deform VBN 40404 4961 9 . . . 40404 4962 1 It -PRON- PRP 40404 4962 2 has have VBZ 40404 4962 3 been be VBN 40404 4962 4 upbent upbent JJ 40404 4962 5 into into IN 40404 4962 6 great great JJ 40404 4962 7 folds fold NNS 40404 4962 8 , , , 40404 4962 9 and and CC 40404 4962 10 broken break VBN 40404 4962 11 into into IN 40404 4962 12 immense immense JJ 40404 4962 13 blocks block NNS 40404 4962 14 of of IN 40404 4962 15 bedded bedded JJ 40404 4962 16 lava lava NN 40404 4962 17 , , , 40404 4962 18 forming form VBG 40404 4962 19 mountain mountain NN 40404 4962 20 ranges range NNS 40404 4962 21 , , , 40404 4962 22 which which WDT 40404 4962 23 run run VBP 40404 4962 24 parallel parallel NN 40404 4962 25 with with IN 40404 4962 26 the the DT 40404 4962 27 Pacific Pacific NNP 40404 4962 28 coast coast NN 40404 4962 29 line line NN 40404 4962 30 . . . 40404 4963 1 On on IN 40404 4963 2 the the DT 40404 4963 3 edges edge NNS 40404 4963 4 of of IN 40404 4963 5 these these DT 40404 4963 6 tilted tilt VBN 40404 4963 7 blocks block VBZ 40404 4963 8 the the DT 40404 4963 9 thickness thickness NN 40404 4963 10 of of IN 40404 4963 11 the the DT 40404 4963 12 lava lava NN 40404 4963 13 is be VBZ 40404 4963 14 seen see VBN 40404 4963 15 to to TO 40404 4963 16 be be VB 40404 4963 17 fully fully RB 40404 4963 18 five five CD 40404 4963 19 thousand thousand CD 40404 4963 20 feet foot NNS 40404 4963 21 . . . 40404 4964 1 The the DT 40404 4964 2 plateau plateau NN 40404 4964 3 has have VBZ 40404 4964 4 been be VBN 40404 4964 5 built build VBN 40404 4964 6 , , , 40404 4964 7 like like IN 40404 4964 8 that that DT 40404 4964 9 of of IN 40404 4964 10 Iceland Iceland NNP 40404 4964 11 ( ( -LRB- 40404 4964 12 p. p. NN 40404 4964 13 242 242 CD 40404 4964 14 ) ) -RRB- 40404 4964 15 , , , 40404 4964 16 of of IN 40404 4964 17 innumerable innumerable JJ 40404 4964 18 overlapping overlapping NN 40404 4964 19 sheets sheet NNS 40404 4964 20 of of IN 40404 4964 21 lava lava NN 40404 4964 22 . . . 40404 4965 1 On on IN 40404 4965 2 the the DT 40404 4965 3 canyon canyon NN 40404 4965 4 walls wall NNS 40404 4965 5 they -PRON- PRP 40404 4965 6 weather weather VBP 40404 4965 7 back back RB 40404 4965 8 in in IN 40404 4965 9 horizontal horizontal JJ 40404 4965 10 terraces terrace NNS 40404 4965 11 and and CC 40404 4965 12 long long JJ 40404 4965 13 talus talus NN 40404 4965 14 slopes slope NNS 40404 4965 15 . . . 40404 4966 1 One one CD 40404 4966 2 may may MD 40404 4966 3 distinguish distinguish VB 40404 4966 4 each each DT 40404 4966 5 successive successive JJ 40404 4966 6 flow flow NN 40404 4966 7 by by IN 40404 4966 8 its -PRON- PRP$ 40404 4966 9 dense dense JJ 40404 4966 10 central central JJ 40404 4966 11 portion portion NN 40404 4966 12 , , , 40404 4966 13 often often RB 40404 4966 14 jointed joint VBD 40404 4966 15 with with IN 40404 4966 16 large large JJ 40404 4966 17 vertical vertical JJ 40404 4966 18 columns column NNS 40404 4966 19 , , , 40404 4966 20 and and CC 40404 4966 21 the the DT 40404 4966 22 upper upper JJ 40404 4966 23 portion portion NN 40404 4966 24 with with IN 40404 4966 25 its -PRON- PRP$ 40404 4966 26 mass mass NN 40404 4966 27 of of IN 40404 4966 28 confused confused JJ 40404 4966 29 irregular irregular JJ 40404 4966 30 columns column NNS 40404 4966 31 and and CC 40404 4966 32 scoriaceous scoriaceous JJ 40404 4966 33 surface surface NN 40404 4966 34 . . . 40404 4967 1 The the DT 40404 4967 2 average average JJ 40404 4967 3 thickness thickness NN 40404 4967 4 of of IN 40404 4967 5 the the DT 40404 4967 6 flows flow NNS 40404 4967 7 seems seem VBZ 40404 4967 8 to to TO 40404 4967 9 be be VB 40404 4967 10 about about RB 40404 4967 11 seventy seventy CD 40404 4967 12 - - HYPH 40404 4967 13 five five CD 40404 4967 14 feet foot NNS 40404 4967 15 . . . 40404 4968 1 The the DT 40404 4968 2 plateau plateau NN 40404 4968 3 was be VBD 40404 4968 4 long long RB 40404 4968 5 in in IN 40404 4968 6 building build VBG 40404 4968 7 . . . 40404 4969 1 Between between IN 40404 4969 2 the the DT 40404 4969 3 layers layer NNS 40404 4969 4 are be VBP 40404 4969 5 found find VBN 40404 4969 6 in in IN 40404 4969 7 places place NNS 40404 4969 8 old old JJ 40404 4969 9 soil soil NN 40404 4969 10 beds bed NNS 40404 4969 11 and and CC 40404 4969 12 forest forest NN 40404 4969 13 grounds ground NNS 40404 4969 14 and and CC 40404 4969 15 the the DT 40404 4969 16 sediments sediment NNS 40404 4969 17 of of IN 40404 4969 18 lakes lake NNS 40404 4969 19 . . . 40404 4970 1 Hence hence RB 40404 4970 2 the the DT 40404 4970 3 interval interval NN 40404 4970 4 between between IN 40404 4970 5 the the DT 40404 4970 6 flows flow NNS 40404 4970 7 in in IN 40404 4970 8 any any DT 40404 4970 9 locality locality NN 40404 4970 10 was be VBD 40404 4970 11 sometimes sometimes RB 40404 4970 12 long long JJ 40404 4970 13 enough enough RB 40404 4970 14 for for IN 40404 4970 15 clays clay NNS 40404 4970 16 to to TO 40404 4970 17 gather gather VB 40404 4970 18 in in IN 40404 4970 19 the the DT 40404 4970 20 lakes lake NNS 40404 4970 21 which which WDT 40404 4970 22 filled fill VBD 40404 4970 23 depressions depression NNS 40404 4970 24 in in IN 40404 4970 25 the the DT 40404 4970 26 surface surface NN 40404 4970 27 . . . 40404 4971 1 Again again RB 40404 4971 2 and and CC 40404 4971 3 again again RB 40404 4971 4 the the DT 40404 4971 5 surface surface NN 40404 4971 6 of of IN 40404 4971 7 the the DT 40404 4971 8 black black JJ 40404 4971 9 basalt basalt NN 40404 4971 10 was be VBD 40404 4971 11 reddened redden VBN 40404 4971 12 by by IN 40404 4971 13 oxidation oxidation NN 40404 4971 14 and and CC 40404 4971 15 decayed decay VBN 40404 4971 16 to to TO 40404 4971 17 soil soil VB 40404 4971 18 , , , 40404 4971 19 and and CC 40404 4971 20 forests forest NNS 40404 4971 21 had have VBD 40404 4971 22 time time NN 40404 4971 23 to to TO 40404 4971 24 grow grow VB 40404 4971 25 upon upon IN 40404 4971 26 it -PRON- PRP 40404 4971 27 before before IN 40404 4971 28 the the DT 40404 4971 29 succeeding succeed VBG 40404 4971 30 inundation inundation NN 40404 4971 31 sealed seal VBD 40404 4971 32 the the DT 40404 4971 33 sediments sediment NNS 40404 4971 34 and and CC 40404 4971 35 soils soil VBZ 40404 4971 36 away away RB 40404 4971 37 beneath beneath IN 40404 4971 38 a a DT 40404 4971 39 sheet sheet NN 40404 4971 40 of of IN 40404 4971 41 stone stone NN 40404 4971 42 . . . 40404 4972 1 Near near IN 40404 4972 2 the the DT 40404 4972 3 edges edge NNS 40404 4972 4 of of IN 40404 4972 5 the the DT 40404 4972 6 lava lava NN 40404 4972 7 plain plain JJ 40404 4972 8 , , , 40404 4972 9 rivers river NNS 40404 4972 10 from from IN 40404 4972 11 the the DT 40404 4972 12 surrounding surround VBG 40404 4972 13 mountains mountain NNS 40404 4972 14 spread spread VBP 40404 4972 15 sheets sheet NNS 40404 4972 16 of of IN 40404 4972 17 sand sand NN 40404 4972 18 and and CC 40404 4972 19 gravel gravel NN 40404 4972 20 on on IN 40404 4972 21 the the DT 40404 4972 22 surface surface NN 40404 4972 23 of of IN 40404 4972 24 one one CD 40404 4972 25 flow flow NN 40404 4972 26 after after IN 40404 4972 27 another another DT 40404 4972 28 . . . 40404 4973 1 These these DT 40404 4973 2 pervious pervious JJ 40404 4973 3 sands sand NNS 40404 4973 4 , , , 40404 4973 5 interbedded interbedde VBD 40404 4973 6 with with IN 40404 4973 7 the the DT 40404 4973 8 lava lava NN 40404 4973 9 , , , 40404 4973 10 become become VB 40404 4973 11 the the DT 40404 4973 12 aquifers aquifer NNS 40404 4973 13 of of IN 40404 4973 14 artesian artesian JJ 40404 4973 15 wells well NNS 40404 4973 16 . . . 40404 4974 1 In in IN 40404 4974 2 places place NNS 40404 4974 3 the the DT 40404 4974 4 lavas lavas NN 40404 4974 5 rest rest NN 40404 4974 6 on on IN 40404 4974 7 extensive extensive JJ 40404 4974 8 lake lake NN 40404 4974 9 deposits deposit NNS 40404 4974 10 , , , 40404 4974 11 one one CD 40404 4974 12 thousand thousand CD 40404 4974 13 feet foot NNS 40404 4974 14 deep deep JJ 40404 4974 15 , , , 40404 4974 16 and and CC 40404 4974 17 Miocene Miocene NNP 40404 4974 18 in in IN 40404 4974 19 age age NN 40404 4974 20 as as IN 40404 4974 21 their -PRON- PRP$ 40404 4974 22 fossils fossil NNS 40404 4974 23 prove prove VBP 40404 4974 24 . . . 40404 4975 1 It -PRON- PRP 40404 4975 2 is be VBZ 40404 4975 3 to to IN 40404 4975 4 the the DT 40404 4975 5 middle middle JJ 40404 4975 6 Tertiary Tertiary NNP 40404 4975 7 , , , 40404 4975 8 then then RB 40404 4975 9 , , , 40404 4975 10 that that IN 40404 4975 11 the the DT 40404 4975 12 earliest early JJS 40404 4975 13 flows flow NNS 40404 4975 14 and and CC 40404 4975 15 the the DT 40404 4975 16 largest large JJS 40404 4975 17 bulk bulk NN 40404 4975 18 of of IN 40404 4975 19 the the DT 40404 4975 20 great great JJ 40404 4975 21 inundation inundation NN 40404 4975 22 belong belong VBP 40404 4975 23 . . . 40404 4976 1 So so RB 40404 4976 2 ancient ancient JJ 40404 4976 3 are be VBP 40404 4976 4 the the DT 40404 4976 5 latest late JJS 40404 4976 6 floods flood NNS 40404 4976 7 in in IN 40404 4976 8 the the DT 40404 4976 9 Columbia Columbia NNP 40404 4976 10 basin basin NN 40404 4976 11 that that IN 40404 4976 12 they -PRON- PRP 40404 4976 13 have have VBP 40404 4976 14 weathered weather VBN 40404 4976 15 to to IN 40404 4976 16 a a DT 40404 4976 17 residual residual JJ 40404 4976 18 yellow yellow JJ 40404 4976 19 clay clay NN 40404 4976 20 from from IN 40404 4976 21 thirty thirty CD 40404 4976 22 to to IN 40404 4976 23 sixty sixty CD 40404 4976 24 feet foot NNS 40404 4976 25 in in IN 40404 4976 26 depth depth NN 40404 4976 27 and and CC 40404 4976 28 marvelously marvelously RB 40404 4976 29 rich rich JJ 40404 4976 30 in in IN 40404 4976 31 the the DT 40404 4976 32 mineral mineral NN 40404 4976 33 substances substance NNS 40404 4976 34 on on IN 40404 4976 35 which which WDT 40404 4976 36 plants plant NNS 40404 4976 37 feed feed NN 40404 4976 38 . . . 40404 4977 1 In in IN 40404 4977 2 the the DT 40404 4977 3 Snake Snake NNP 40404 4977 4 River River NNP 40404 4977 5 valley valley NNP 40404 4977 6 the the DT 40404 4977 7 latest late JJS 40404 4977 8 lavas lavas NN 40404 4977 9 are be VBP 40404 4977 10 much much RB 40404 4977 11 younger young JJR 40404 4977 12 . . . 40404 4978 1 Their -PRON- PRP$ 40404 4978 2 surfaces surface NNS 40404 4978 3 are be VBP 40404 4978 4 so so RB 40404 4978 5 fresh fresh JJ 40404 4978 6 and and CC 40404 4978 7 undecayed undecayed JJ 40404 4978 8 that that IN 40404 4978 9 here here RB 40404 4978 10 the the DT 40404 4978 11 effusive effusive JJ 40404 4978 12 eruptions eruption NNS 40404 4978 13 may may MD 40404 4978 14 well well RB 40404 4978 15 have have VB 40404 4978 16 continued continue VBN 40404 4978 17 to to IN 40404 4978 18 within within IN 40404 4978 19 the the DT 40404 4978 20 period period NN 40404 4978 21 of of IN 40404 4978 22 human human JJ 40404 4978 23 history history NN 40404 4978 24 . . . 40404 4979 1 Low low JJ 40404 4979 2 lava lava NN 40404 4979 3 domes dome VBZ 40404 4979 4 like like IN 40404 4979 5 those those DT 40404 4979 6 of of IN 40404 4979 7 Iceland Iceland NNP 40404 4979 8 mark mark NN 40404 4979 9 where where WRB 40404 4979 10 last last JJ 40404 4979 11 the the DT 40404 4979 12 basalt basalt NN 40404 4979 13 outwelled outwelle VBD 40404 4979 14 and and CC 40404 4979 15 spread spread VBD 40404 4979 16 far far RB 40404 4979 17 and and CC 40404 4979 18 wide wide RB 40404 4979 19 before before IN 40404 4979 20 it -PRON- PRP 40404 4979 21 chilled chill VBD 40404 4979 22 ( ( -LRB- 40404 4979 23 Fig fig NN 40404 4979 24 . . . 40404 4980 1 341 341 CD 40404 4980 2 ) ) -RRB- 40404 4980 3 . . . 40404 4981 1 In in IN 40404 4981 2 places place NNS 40404 4981 3 small small JJ 40404 4981 4 mounds mound NNS 40404 4981 5 of of IN 40404 4981 6 scoria scoria NNP 40404 4981 7 show show VBP 40404 4981 8 that that IN 40404 4981 9 the the DT 40404 4981 10 eruptions eruption NNS 40404 4981 11 were be VBD 40404 4981 12 accompanied accompany VBN 40404 4981 13 to to IN 40404 4981 14 a a DT 40404 4981 15 slight slight JJ 40404 4981 16 degree degree NN 40404 4981 17 by by IN 40404 4981 18 explosions explosion NNS 40404 4981 19 of of IN 40404 4981 20 steam steam NN 40404 4981 21 . . . 40404 4982 1 So so RB 40404 4982 2 fluid fluid JJ 40404 4982 3 was be VBD 40404 4982 4 this this DT 40404 4982 5 superheated superheated JJ 40404 4982 6 lava lava NN 40404 4982 7 that that IN 40404 4982 8 recent recent JJ 40404 4982 9 flows flow NNS 40404 4982 10 have have VBP 40404 4982 11 been be VBN 40404 4982 12 traced trace VBN 40404 4982 13 for for IN 40404 4982 14 more more JJR 40404 4982 15 than than IN 40404 4982 16 fifty fifty CD 40404 4982 17 miles mile NNS 40404 4982 18 . . . 40404 4983 1 The the DT 40404 4983 2 rocks rock NNS 40404 4983 3 underlying underlie VBG 40404 4983 4 the the DT 40404 4983 5 Columbia Columbia NNP 40404 4983 6 lavas lavas NN 40404 4983 7 , , , 40404 4983 8 where where WRB 40404 4983 9 exposed expose VBN 40404 4983 10 to to IN 40404 4983 11 view view NN 40404 4983 12 , , , 40404 4983 13 are be VBP 40404 4983 14 seen see VBN 40404 4983 15 to to TO 40404 4983 16 be be VB 40404 4983 17 cut cut VBN 40404 4983 18 by by IN 40404 4983 19 numerous numerous JJ 40404 4983 20 great great JJ 40404 4983 21 dikes dike NNS 40404 4983 22 of of IN 40404 4983 23 dense dense JJ 40404 4983 24 basalt basalt NN 40404 4983 25 , , , 40404 4983 26 which which WDT 40404 4983 27 mark mark VBP 40404 4983 28 the the DT 40404 4983 29 fissures fissure NNS 40404 4983 30 through through IN 40404 4983 31 which which WDT 40404 4983 32 the the DT 40404 4983 33 molten molten JJ 40404 4983 34 rock rock NN 40404 4983 35 rose rise VBD 40404 4983 36 to to IN 40404 4983 37 the the DT 40404 4983 38 surface surface NN 40404 4983 39 . . . 40404 4984 1 The the DT 40404 4984 2 Tertiary Tertiary NNP 40404 4984 3 included include VBD 40404 4984 4 times time NNS 40404 4984 5 of of IN 40404 4984 6 widespread widespread JJ 40404 4984 7 and and CC 40404 4984 8 intense intense JJ 40404 4984 9 volcanic volcanic JJ 40404 4984 10 action action NN 40404 4984 11 in in IN 40404 4984 12 other other JJ 40404 4984 13 continents continent NNS 40404 4984 14 as as RB 40404 4984 15 well well RB 40404 4984 16 as as IN 40404 4984 17 in in IN 40404 4984 18 North North NNP 40404 4984 19 America America NNP 40404 4984 20 . . . 40404 4985 1 In in IN 40404 4985 2 Europe Europe NNP 40404 4985 3 , , , 40404 4985 4 Vesuvius Vesuvius NNP 40404 4985 5 ( ( -LRB- 40404 4985 6 p. p. NN 40404 4985 7 231 231 CD 40404 4985 8 ) ) -RRB- 40404 4985 9 and and CC 40404 4985 10 Etna Etna NNP 40404 4985 11 began begin VBD 40404 4985 12 their -PRON- PRP$ 40404 4985 13 career career NN 40404 4985 14 as as IN 40404 4985 15 submarine submarine NN 40404 4985 16 volcanoes volcano NNS 40404 4985 17 in in IN 40404 4985 18 connection connection NN 40404 4985 19 with with IN 40404 4985 20 earth earth NN 40404 4985 21 movements movement NNS 40404 4985 22 which which WDT 40404 4985 23 finally finally RB 40404 4985 24 lifted lift VBD 40404 4985 25 Pliocene pliocene JJ 40404 4985 26 deposits deposit NNS 40404 4985 27 in in IN 40404 4985 28 Sicily Sicily NNP 40404 4985 29 to to IN 40404 4985 30 their -PRON- PRP$ 40404 4985 31 present present JJ 40404 4985 32 height,--four height,--four NNP 40404 4985 33 thousand thousand CD 40404 4985 34 feet foot NNS 40404 4985 35 above above IN 40404 4985 36 the the DT 40404 4985 37 sea sea NN 40404 4985 38 . . . 40404 4986 1 Volcanoes volcano NNS 40404 4986 2 broke break VBD 40404 4986 3 forth forth RB 40404 4986 4 in in IN 40404 4986 5 central central JJ 40404 4986 6 France France NNP 40404 4986 7 and and CC 40404 4986 8 southern southern JJ 40404 4986 9 Germany Germany NNP 40404 4986 10 , , , 40404 4986 11 in in IN 40404 4986 12 Hungary Hungary NNP 40404 4986 13 and and CC 40404 4986 14 the the DT 40404 4986 15 Carpathians Carpathians NNPS 40404 4986 16 . . . 40404 4987 1 Innumerable innumerable JJ 40404 4987 2 fissures fissure NNS 40404 4987 3 opened open VBN 40404 4987 4 in in IN 40404 4987 5 the the DT 40404 4987 6 crust crust NN 40404 4987 7 from from IN 40404 4987 8 the the DT 40404 4987 9 north north NN 40404 4987 10 of of IN 40404 4987 11 Ireland Ireland NNP 40404 4987 12 and and CC 40404 4987 13 the the DT 40404 4987 14 western western JJ 40404 4987 15 islands island NNS 40404 4987 16 of of IN 40404 4987 17 Scotland Scotland NNP 40404 4987 18 to to IN 40404 4987 19 the the DT 40404 4987 20 Faroes Faroes NNPS 40404 4987 21 , , , 40404 4987 22 Iceland Iceland NNP 40404 4987 23 , , , 40404 4987 24 and and CC 40404 4987 25 even even RB 40404 4987 26 to to TO 40404 4987 27 arctic arctic NNP 40404 4987 28 Greenland Greenland NNP 40404 4987 29 ; ; : 40404 4987 30 and and CC 40404 4987 31 here here RB 40404 4987 32 great great JJ 40404 4987 33 plateaus plateaus NNP 40404 4987 34 were be VBD 40404 4987 35 built build VBN 40404 4987 36 of of IN 40404 4987 37 flows flow NNS 40404 4987 38 of of IN 40404 4987 39 basalt basalt NN 40404 4987 40 similar similar JJ 40404 4987 41 to to IN 40404 4987 42 that that DT 40404 4987 43 of of IN 40404 4987 44 the the DT 40404 4987 45 Columbia Columbia NNP 40404 4987 46 River River NNP 40404 4987 47 . . . 40404 4988 1 In in IN 40404 4988 2 India India NNP 40404 4988 3 , , , 40404 4988 4 at at IN 40404 4988 5 the the DT 40404 4988 6 opening opening NN 40404 4988 7 of of IN 40404 4988 8 the the DT 40404 4988 9 Tertiary Tertiary NNP 40404 4988 10 , , , 40404 4988 11 there there EX 40404 4988 12 had have VBD 40404 4988 13 been be VBN 40404 4988 14 an an DT 40404 4988 15 outwelling outwelling NN 40404 4988 16 of of IN 40404 4988 17 basalt basalt NN 40404 4988 18 , , , 40404 4988 19 flooding flood VBG 40404 4988 20 to to IN 40404 4988 21 a a DT 40404 4988 22 depth depth NN 40404 4988 23 of of IN 40404 4988 24 thousands thousand NNS 40404 4988 25 of of IN 40404 4988 26 feet foot NNS 40404 4988 27 two two CD 40404 4988 28 hundred hundred CD 40404 4988 29 thousand thousand CD 40404 4988 30 square square JJ 40404 4988 31 miles mile NNS 40404 4988 32 of of IN 40404 4988 33 the the DT 40404 4988 34 northwestern northwestern JJ 40404 4988 35 part part NN 40404 4988 36 of of IN 40404 4988 37 the the DT 40404 4988 38 peninsula peninsula NN 40404 4988 39 ( ( -LRB- 40404 4988 40 Fig fig NN 40404 4988 41 . . . 40404 4989 1 342 342 CD 40404 4989 2 ) ) -RRB- 40404 4989 3 , , , 40404 4989 4 and and CC 40404 4989 5 similar similar JJ 40404 4989 6 inundations inundation NNS 40404 4989 7 of of IN 40404 4989 8 lava lava NN 40404 4989 9 occurred occur VBD 40404 4989 10 where where WRB 40404 4989 11 are be VBP 40404 4989 12 now now RB 40404 4989 13 the the DT 40404 4989 14 table table NN 40404 4989 15 - - HYPH 40404 4989 16 lands land NNS 40404 4989 17 of of IN 40404 4989 18 Abyssinia Abyssinia NNP 40404 4989 19 . . . 40404 4990 1 From from IN 40404 4990 2 the the DT 40404 4990 3 middle middle JJ 40404 4990 4 Tertiary Tertiary NNP 40404 4990 5 on on RB 40404 4990 6 , , , 40404 4990 7 Asia Asia NNP 40404 4990 8 Minor Minor NNP 40404 4990 9 , , , 40404 4990 10 Arabia Arabia NNP 40404 4990 11 , , , 40404 4990 12 and and CC 40404 4990 13 Persia Persia NNP 40404 4990 14 were be VBD 40404 4990 15 the the DT 40404 4990 16 scenes scene NNS 40404 4990 17 of of IN 40404 4990 18 volcanic volcanic JJ 40404 4990 19 action action NN 40404 4990 20 . . . 40404 4991 1 In in IN 40404 4991 2 Palestine Palestine NNP 40404 4991 3 the the DT 40404 4991 4 rise rise NN 40404 4991 5 of of IN 40404 4991 6 the the DT 40404 4991 7 uplands upland NNS 40404 4991 8 of of IN 40404 4991 9 Judea Judea NNP 40404 4991 10 at at IN 40404 4991 11 the the DT 40404 4991 12 close close NN 40404 4991 13 of of IN 40404 4991 14 the the DT 40404 4991 15 Eocene Eocene NNP 40404 4991 16 , , , 40404 4991 17 and and CC 40404 4991 18 the the DT 40404 4991 19 downfaulting downfaulting NN 40404 4991 20 of of IN 40404 4991 21 the the DT 40404 4991 22 Jordan Jordan NNP 40404 4991 23 valley valley NN 40404 4991 24 ( ( -LRB- 40404 4991 25 p. p. 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40404 4995 5 Sheet Sheet NNP 40404 4995 6 ( ( -LRB- 40404 4995 7 shaded shaded JJ 40404 4995 8 area area NN 40404 4995 9 ) ) -RRB- 40404 4995 10 of of IN 40404 4995 11 Western Western NNP 40404 4995 12 India India NNP 40404 4995 13 ] ] -RRB- 40404 4995 14 = = NFP 40404 4995 15 Erosion erosion NN 40404 4995 16 of of IN 40404 4995 17 Tertiary tertiary JJ 40404 4995 18 mountains mountain NNS 40404 4995 19 and and CC 40404 4995 20 plateaus.= plateaus.= CD 40404 4995 21 The the DT 40404 4995 22 mountains mountain NNS 40404 4995 23 and and CC 40404 4995 24 plateaus plateaus NN 40404 4995 25 built build VBN 40404 4995 26 at at IN 40404 4995 27 various various JJ 40404 4995 28 times time NNS 40404 4995 29 during during IN 40404 4995 30 the the DT 40404 4995 31 Tertiary Tertiary NNP 40404 4995 32 and and CC 40404 4995 33 at at IN 40404 4995 34 its -PRON- PRP$ 40404 4995 35 commencement commencement NN 40404 4995 36 have have VBP 40404 4995 37 been be VBN 40404 4995 38 profoundly profoundly RB 40404 4995 39 carved carve VBN 40404 4995 40 by by IN 40404 4995 41 erosive erosive JJ 40404 4995 42 agents agent NNS 40404 4995 43 . . . 40404 4996 1 The the DT 40404 4996 2 Sierra Sierra NNP 40404 4996 3 Nevada Nevada NNP 40404 4996 4 Mountains Mountains NNPS 40404 4996 5 have have VBP 40404 4996 6 been be VBN 40404 4996 7 dissected dissect VBN 40404 4996 8 on on IN 40404 4996 9 the the DT 40404 4996 10 western western JJ 40404 4996 11 slope slope NN 40404 4996 12 by by IN 40404 4996 13 such such JJ 40404 4996 14 canyons canyon NNS 40404 4996 15 as as IN 40404 4996 16 those those DT 40404 4996 17 of of IN 40404 4996 18 King King NNP 40404 4996 19 's 's POS 40404 4996 20 River River NNP 40404 4996 21 and and CC 40404 4996 22 the the DT 40404 4996 23 Yosemite Yosemite NNP 40404 4996 24 . . . 40404 4997 1 Six six CD 40404 4997 2 miles mile NNS 40404 4997 3 of of IN 40404 4997 4 strata stratum NNS 40404 4997 5 have have VBP 40404 4997 6 been be VBN 40404 4997 7 denuded denude VBN 40404 4997 8 from from IN 40404 4997 9 parts part NNS 40404 4997 10 of of IN 40404 4997 11 the the DT 40404 4997 12 Wasatch Wasatch NNP 40404 4997 13 Mountains Mountains NNPS 40404 4997 14 since since IN 40404 4997 15 their -PRON- PRP$ 40404 4997 16 rise rise NN 40404 4997 17 at at IN 40404 4997 18 the the DT 40404 4997 19 beginning beginning NN 40404 4997 20 of of IN 40404 4997 21 the the DT 40404 4997 22 era era NN 40404 4997 23 . . . 40404 4998 1 From from IN 40404 4998 2 the the DT 40404 4998 3 Colorado Colorado NNP 40404 4998 4 plateaus plateaus NN 40404 4998 5 , , , 40404 4998 6 whose whose WP$ 40404 4998 7 uplift uplift NN 40404 4998 8 dates date VBZ 40404 4998 9 from from IN 40404 4998 10 the the DT 40404 4998 11 same same JJ 40404 4998 12 time time NN 40404 4998 13 , , , 40404 4998 14 there there EX 40404 4998 15 have have VBP 40404 4998 16 been be VBN 40404 4998 17 stripped strip VBN 40404 4998 18 off off RP 40404 4998 19 ten ten CD 40404 4998 20 thousand thousand CD 40404 4998 21 feet foot NNS 40404 4998 22 of of IN 40404 4998 23 strata strata NN 40404 4998 24 over over IN 40404 4998 25 thousands thousand NNS 40404 4998 26 of of IN 40404 4998 27 square square JJ 40404 4998 28 miles mile NNS 40404 4998 29 , , , 40404 4998 30 and and CC 40404 4998 31 the the DT 40404 4998 32 colossal colossal JJ 40404 4998 33 canyon canyon NN 40404 4998 34 of of IN 40404 4998 35 the the DT 40404 4998 36 Colorado Colorado NNP 40404 4998 37 has have VBZ 40404 4998 38 been be VBN 40404 4998 39 cut cut VBN 40404 4998 40 after after IN 40404 4998 41 this this DT 40404 4998 42 great great JJ 40404 4998 43 denudation denudation NN 40404 4998 44 had have VBD 40404 4998 45 been be VBN 40404 4998 46 mostly mostly RB 40404 4998 47 accomplished accomplish VBN 40404 4998 48 . . . 40404 4999 1 On on IN 40404 4999 2 the the DT 40404 4999 3 eastern eastern JJ 40404 4999 4 side side NN 40404 4999 5 of of IN 40404 4999 6 the the DT 40404 4999 7 continent continent NN 40404 4999 8 , , , 40404 4999 9 as as IN 40404 4999 10 we -PRON- PRP 40404 4999 11 have have VBP 40404 4999 12 seen see VBN 40404 4999 13 , , , 40404 4999 14 a a DT 40404 4999 15 broad broad JJ 40404 4999 16 peneplain peneplain NN 40404 4999 17 had have VBD 40404 4999 18 been be VBN 40404 4999 19 developed develop VBN 40404 4999 20 by by IN 40404 4999 21 the the DT 40404 4999 22 close close NN 40404 4999 23 of of IN 40404 4999 24 the the DT 40404 4999 25 Cretaceous cretaceous JJ 40404 4999 26 . . . 40404 5000 1 The the DT 40404 5000 2 remnants remnant NNS 40404 5000 3 of of IN 40404 5000 4 this this DT 40404 5000 5 old old JJ 40404 5000 6 erosion erosion NN 40404 5000 7 surface surface NN 40404 5000 8 are be VBP 40404 5000 9 now now RB 40404 5000 10 found find VBN 40404 5000 11 upwarped upwarped JJ 40404 5000 12 to to IN 40404 5000 13 various various JJ 40404 5000 14 heights height NNS 40404 5000 15 in in IN 40404 5000 16 different different JJ 40404 5000 17 portions portion NNS 40404 5000 18 of of IN 40404 5000 19 its -PRON- PRP$ 40404 5000 20 area area NN 40404 5000 21 . . . 40404 5001 1 In in IN 40404 5001 2 southern southern JJ 40404 5001 3 New New NNP 40404 5001 4 England England NNP 40404 5001 5 it -PRON- PRP 40404 5001 6 now now RB 40404 5001 7 stands stand VBZ 40404 5001 8 fifteen fifteen CD 40404 5001 9 hundred hundred CD 40404 5001 10 feet foot NNS 40404 5001 11 above above IN 40404 5001 12 the the DT 40404 5001 13 sea sea NN 40404 5001 14 in in IN 40404 5001 15 western western JJ 40404 5001 16 Massachusetts Massachusetts NNP 40404 5001 17 , , , 40404 5001 18 declining decline VBG 40404 5001 19 thence thence NN 40404 5001 20 southward southward NNP 40404 5001 21 and and CC 40404 5001 22 eastward eastward RB 40404 5001 23 to to TO 40404 5001 24 sea sea NN 40404 5001 25 level level NN 40404 5001 26 at at IN 40404 5001 27 the the DT 40404 5001 28 coast coast NN 40404 5001 29 . . . 40404 5002 1 In in IN 40404 5002 2 southwestern southwestern JJ 40404 5002 3 Virginia Virginia NNP 40404 5002 4 it -PRON- PRP 40404 5002 5 has have VBZ 40404 5002 6 been be VBN 40404 5002 7 lifted lift VBN 40404 5002 8 to to IN 40404 5002 9 four four CD 40404 5002 10 thousand thousand CD 40404 5002 11 feet foot NNS 40404 5002 12 above above IN 40404 5002 13 the the DT 40404 5002 14 sea sea NN 40404 5002 15 . . . 40404 5003 1 Manifestly manifestly RB 40404 5003 2 this this DT 40404 5003 3 upwarp upwarp NN 40404 5003 4 occurred occur VBD 40404 5003 5 since since IN 40404 5003 6 the the DT 40404 5003 7 peneplain peneplain NN 40404 5003 8 was be VBD 40404 5003 9 formed form VBN 40404 5003 10 ; ; : 40404 5003 11 it -PRON- PRP 40404 5003 12 is be VBZ 40404 5003 13 later later RB 40404 5003 14 than than IN 40404 5003 15 the the DT 40404 5003 16 Mesozoic Mesozoic NNP 40404 5003 17 , , , 40404 5003 18 and and CC 40404 5003 19 the the DT 40404 5003 20 vast vast JJ 40404 5003 21 dissection dissection NN 40404 5003 22 which which WDT 40404 5003 23 the the DT 40404 5003 24 peneplain peneplain NN 40404 5003 25 has have VBZ 40404 5003 26 suffered suffer VBN 40404 5003 27 since since IN 40404 5003 28 its -PRON- PRP$ 40404 5003 29 uplift uplift NN 40404 5003 30 must must MD 40404 5003 31 belong belong VB 40404 5003 32 to to IN 40404 5003 33 the the DT 40404 5003 34 successive successive JJ 40404 5003 35 cycles cycle NNS 40404 5003 36 of of IN 40404 5003 37 Cenozoic Cenozoic NNP 40404 5003 38 time time NN 40404 5003 39 . . . 40404 5004 1 Revived revive VBN 40404 5004 2 by by IN 40404 5004 3 the the DT 40404 5004 4 uplift uplift NN 40404 5004 5 , , , 40404 5004 6 the the DT 40404 5004 7 streams stream NNS 40404 5004 8 of of IN 40404 5004 9 the the DT 40404 5004 10 area area NN 40404 5004 11 trenched trench VBD 40404 5004 12 it -PRON- PRP 40404 5004 13 as as RB 40404 5004 14 deeply deeply RB 40404 5004 15 as as IN 40404 5004 16 its -PRON- PRP$ 40404 5004 17 elevation elevation NN 40404 5004 18 permitted permit VBD 40404 5004 19 , , , 40404 5004 20 and and CC 40404 5004 21 reaching reach VBG 40404 5004 22 grade grade NN 40404 5004 23 , , , 40404 5004 24 opened open VBD 40404 5004 25 up up RP 40404 5004 26 wide wide JJ 40404 5004 27 valleys valley NNS 40404 5004 28 and and CC 40404 5004 29 new new JJ 40404 5004 30 peneplains peneplain NNS 40404 5004 31 in in IN 40404 5004 32 the the DT 40404 5004 33 softer soft JJR 40404 5004 34 rocks rock NNS 40404 5004 35 . . . 40404 5005 1 The the DT 40404 5005 2 Connecticut Connecticut NNP 40404 5005 3 valley valley NN 40404 5005 4 is be VBZ 40404 5005 5 Tertiary Tertiary NNP 40404 5005 6 in in IN 40404 5005 7 age age NN 40404 5005 8 , , , 40404 5005 9 and and CC 40404 5005 10 in in IN 40404 5005 11 the the DT 40404 5005 12 weak weak JJ 40404 5005 13 Triassic Triassic NNP 40404 5005 14 sandstones sandstone NNS 40404 5005 15 has have VBZ 40404 5005 16 been be VBN 40404 5005 17 widened widen VBN 40404 5005 18 in in IN 40404 5005 19 places place NNS 40404 5005 20 to to IN 40404 5005 21 fifteen fifteen CD 40404 5005 22 miles mile NNS 40404 5005 23 . . . 40404 5006 1 Dating date VBG 40404 5006 2 from from IN 40404 5006 3 the the DT 40404 5006 4 same same JJ 40404 5006 5 time time NN 40404 5006 6 are be VBP 40404 5006 7 the the DT 40404 5006 8 valleys valley NNS 40404 5006 9 of of IN 40404 5006 10 the the DT 40404 5006 11 Hudson Hudson NNP 40404 5006 12 , , , 40404 5006 13 the the DT 40404 5006 14 Susquehanna Susquehanna NNP 40404 5006 15 , , , 40404 5006 16 the the DT 40404 5006 17 Delaware Delaware NNP 40404 5006 18 , , , 40404 5006 19 the the DT 40404 5006 20 Potomac Potomac NNP 40404 5006 21 , , , 40404 5006 22 and and CC 40404 5006 23 the the DT 40404 5006 24 Shenandoah Shenandoah NNPS 40404 5006 25 . . . 40404 5007 1 In in IN 40404 5007 2 Pennsylvania Pennsylvania NNP 40404 5007 3 and and CC 40404 5007 4 the the DT 40404 5007 5 states state NNS 40404 5007 6 lying lie VBG 40404 5007 7 to to IN 40404 5007 8 the the DT 40404 5007 9 south south NN 40404 5007 10 the the DT 40404 5007 11 Mesozoic Mesozoic NNP 40404 5007 12 peneplain peneplain NN 40404 5007 13 lies lie VBZ 40404 5007 14 along along IN 40404 5007 15 the the DT 40404 5007 16 summits summit NNS 40404 5007 17 of of IN 40404 5007 18 the the DT 40404 5007 19 mountain mountain NN 40404 5007 20 ridges ridge NNS 40404 5007 21 . . . 40404 5008 1 On on IN 40404 5008 2 the the DT 40404 5008 3 surface surface NN 40404 5008 4 of of IN 40404 5008 5 this this DT 40404 5008 6 ancient ancient JJ 40404 5008 7 plain plain NN 40404 5008 8 , , , 40404 5008 9 Tertiary tertiary JJ 40404 5008 10 erosion erosion NN 40404 5008 11 etched etch VBD 40404 5008 12 out out RP 40404 5008 13 the the DT 40404 5008 14 beautifully beautifully RB 40404 5008 15 regular regular JJ 40404 5008 16 pattern pattern NN 40404 5008 17 of of IN 40404 5008 18 the the DT 40404 5008 19 Allegheny Allegheny NNP 40404 5008 20 mountain mountain NN 40404 5008 21 ridges ridge NNS 40404 5008 22 and and CC 40404 5008 23 their -PRON- PRP$ 40404 5008 24 intervening intervening NN 40404 5008 25 valleys valley NNS 40404 5008 26 . . . 40404 5009 1 The the DT 40404 5009 2 weaker weak JJR 40404 5009 3 strata strata NN 40404 5009 4 of of IN 40404 5009 5 the the DT 40404 5009 6 long long JJ 40404 5009 7 , , , 40404 5009 8 regular regular JJ 40404 5009 9 folds fold NNS 40404 5009 10 were be VBD 40404 5009 11 eroded erode VBN 40404 5009 12 into into IN 40404 5009 13 longitudinal longitudinal JJ 40404 5009 14 valleys valley NNS 40404 5009 15 , , , 40404 5009 16 while while IN 40404 5009 17 the the DT 40404 5009 18 hard hard JJ 40404 5009 19 Paleozoic Paleozoic NNP 40404 5009 20 sandstones sandstone NNS 40404 5009 21 , , , 40404 5009 22 such such JJ 40404 5009 23 as as IN 40404 5009 24 the the DT 40404 5009 25 Medina Medina NNP 40404 5009 26 ( ( -LRB- 40404 5009 27 p. p. NN 40404 5009 28 335 335 CD 40404 5009 29 ) ) -RRB- 40404 5009 30 and and CC 40404 5009 31 the the DT 40404 5009 32 Pocono Pocono NNP 40404 5009 33 ( ( -LRB- 40404 5009 34 p. p. NN 40404 5009 35 350 350 CD 40404 5009 36 ) ) -RRB- 40404 5009 37 , , , 40404 5009 38 were be VBD 40404 5009 39 left leave VBN 40404 5009 40 in in IN 40404 5009 41 relief relief NN 40404 5009 42 as as IN 40404 5009 43 bold bold JJ 40404 5009 44 mountain mountain NN 40404 5009 45 walls wall NNS 40404 5009 46 whose whose WP$ 40404 5009 47 even even RB 40404 5009 48 crests crest NNS 40404 5009 49 rise rise VBP 40404 5009 50 to to IN 40404 5009 51 the the DT 40404 5009 52 common common JJ 40404 5009 53 level level NN 40404 5009 54 of of IN 40404 5009 55 the the DT 40404 5009 56 ancient ancient JJ 40404 5009 57 plain plain NN 40404 5009 58 . . . 40404 5010 1 From from IN 40404 5010 2 Virginia Virginia NNP 40404 5010 3 far far RB 40404 5010 4 into into IN 40404 5010 5 Alabama Alabama NNP 40404 5010 6 the the DT 40404 5010 7 great great JJ 40404 5010 8 Appalachian Appalachian NNP 40404 5010 9 valley valley NN 40404 5010 10 was be VBD 40404 5010 11 opened open VBN 40404 5010 12 to to IN 40404 5010 13 a a DT 40404 5010 14 width width NN 40404 5010 15 in in IN 40404 5010 16 places place NNS 40404 5010 17 of of IN 40404 5010 18 fifty fifty CD 40404 5010 19 miles mile NNS 40404 5010 20 and and CC 40404 5010 21 more more JJR 40404 5010 22 , , , 40404 5010 23 along along IN 40404 5010 24 a a DT 40404 5010 25 belt belt NN 40404 5010 26 of of IN 40404 5010 27 intensely intensely RB 40404 5010 28 folded fold VBN 40404 5010 29 and and CC 40404 5010 30 faulted fault VBN 40404 5010 31 strata strata NN 40404 5010 32 where where WRB 40404 5010 33 once once RB 40404 5010 34 was be VBD 40404 5010 35 the the DT 40404 5010 36 heart heart NN 40404 5010 37 of of IN 40404 5010 38 the the DT 40404 5010 39 Appalachian Appalachian NNP 40404 5010 40 Mountains Mountains NNPS 40404 5010 41 . . . 40404 5011 1 In in IN 40404 5011 2 Figure Figure NNP 40404 5011 3 70 70 CD 40404 5011 4 , , , 40404 5011 5 the the DT 40404 5011 6 summit summit NN 40404 5011 7 of of IN 40404 5011 8 the the DT 40404 5011 9 Cumberland Cumberland NNP 40404 5011 10 plateau plateau NN 40404 5011 11 ( ( -LRB- 40404 5011 12 ab ab NNP 40404 5011 13 ) ) -RRB- 40404 5011 14 marks mark VBZ 40404 5011 15 the the DT 40404 5011 16 level level NN 40404 5011 17 of of IN 40404 5011 18 the the DT 40404 5011 19 Mesozoic Mesozoic NNP 40404 5011 20 peneplain peneplain NN 40404 5011 21 , , , 40404 5011 22 while while IN 40404 5011 23 the the DT 40404 5011 24 lower low JJR 40404 5011 25 erosion erosion NN 40404 5011 26 levels level NNS 40404 5011 27 are be VBP 40404 5011 28 Tertiary Tertiary NNP 40404 5011 29 and and CC 40404 5011 30 Quaternary Quaternary NNP 40404 5011 31 in in IN 40404 5011 32 age age NN 40404 5011 33 . . . 40404 5012 1 [ [ -LRB- 40404 5012 2 Illustration illustration NN 40404 5012 3 : : : 40404 5012 4 Fig Fig NNP 40404 5012 5 . . . 40404 5013 1 343 343 CD 40404 5013 2 . . . 40404 5014 1 Diagram Diagram NNP 40404 5014 2 of of IN 40404 5014 3 the the DT 40404 5014 4 Allegheny Allegheny NNP 40404 5014 5 Mountains Mountains NNPS 40404 5014 6 , , , 40404 5014 7 Pennsylvania Pennsylvania NNP 40404 5014 8 From from IN 40404 5014 9 Davis Davis NNP 40404 5014 10 ' ' POS 40404 5014 11 Elementary Elementary NNP 40404 5014 12 Physical Physical NNP 40404 5014 13 Geography Geography NNP 40404 5014 14 ] ] -RRB- 40404 5014 15 Life Life NNP 40404 5014 16 of of IN 40404 5014 17 the the DT 40404 5014 18 Tertiary Tertiary NNP 40404 5014 19 Period Period NNP 40404 5014 20 = = SYM 40404 5014 21 Vegetation vegetation NN 40404 5014 22 and and CC 40404 5014 23 climate.= climate.= VBD 40404 5014 24 The the DT 40404 5014 25 highest high JJS 40404 5014 26 plants plant NNS 40404 5014 27 in in IN 40404 5014 28 structure structure NN 40404 5014 29 , , , 40404 5014 30 the the DT 40404 5014 31 _ _ NNP 40404 5014 32 dicotyls dicotyls NN 40404 5014 33 _ _ NNP 40404 5014 34 ( ( -LRB- 40404 5014 35 such such JJ 40404 5014 36 as as IN 40404 5014 37 our -PRON- PRP$ 40404 5014 38 deciduous deciduous JJ 40404 5014 39 forest forest NN 40404 5014 40 trees tree NNS 40404 5014 41 ) ) -RRB- 40404 5014 42 and and CC 40404 5014 43 the the DT 40404 5014 44 _ _ NNP 40404 5014 45 monocotyls monocotyls NN 40404 5014 46 _ _ NNP 40404 5014 47 ( ( -LRB- 40404 5014 48 represented represent VBN 40404 5014 49 by by IN 40404 5014 50 the the DT 40404 5014 51 palms palm NNS 40404 5014 52 ) ) -RRB- 40404 5014 53 , , , 40404 5014 54 were be VBD 40404 5014 55 introduced introduce VBN 40404 5014 56 during during IN 40404 5014 57 the the DT 40404 5014 58 Cretaceous Cretaceous NNP 40404 5014 59 . . . 40404 5015 1 The the DT 40404 5015 2 vegetable vegetable NN 40404 5015 3 kingdom kingdom NN 40404 5015 4 reached reach VBD 40404 5015 5 its -PRON- PRP$ 40404 5015 6 culmination culmination NN 40404 5015 7 before before IN 40404 5015 8 the the DT 40404 5015 9 animal animal NN 40404 5015 10 kingdom kingdom NN 40404 5015 11 , , , 40404 5015 12 and and CC 40404 5015 13 if if IN 40404 5015 14 the the DT 40404 5015 15 dividing divide VBG 40404 5015 16 line line NN 40404 5015 17 between between IN 40404 5015 18 the the DT 40404 5015 19 Mesozoic Mesozoic NNP 40404 5015 20 and and CC 40404 5015 21 the the DT 40404 5015 22 Cenozoic Cenozoic NNP 40404 5015 23 were be VBD 40404 5015 24 drawn draw VBN 40404 5015 25 according accord VBG 40404 5015 26 to to IN 40404 5015 27 the the DT 40404 5015 28 progress progress NN 40404 5015 29 of of IN 40404 5015 30 plant plant NN 40404 5015 31 life life NN 40404 5015 32 , , , 40404 5015 33 the the DT 40404 5015 34 Cretaceous cretaceous JJ 40404 5015 35 instead instead RB 40404 5015 36 of of IN 40404 5015 37 the the DT 40404 5015 38 Tertiary Tertiary NNP 40404 5015 39 would would MD 40404 5015 40 be be VB 40404 5015 41 made make VBN 40404 5015 42 the the DT 40404 5015 43 opening open VBG 40404 5015 44 period period NN 40404 5015 45 of of IN 40404 5015 46 the the DT 40404 5015 47 modern modern JJ 40404 5015 48 era era NN 40404 5015 49 . . . 40404 5016 1 The the DT 40404 5016 2 plants plant NNS 40404 5016 3 of of IN 40404 5016 4 the the DT 40404 5016 5 Tertiary Tertiary NNP 40404 5016 6 belonged belong VBN 40404 5016 7 , , , 40404 5016 8 for for IN 40404 5016 9 the the DT 40404 5016 10 most most JJS 40404 5016 11 part part NN 40404 5016 12 , , , 40404 5016 13 to to IN 40404 5016 14 genera genera NNP 40404 5016 15 now now RB 40404 5016 16 living live VBG 40404 5016 17 ; ; : 40404 5016 18 but but CC 40404 5016 19 their -PRON- PRP$ 40404 5016 20 distribution distribution NN 40404 5016 21 was be VBD 40404 5016 22 very very RB 40404 5016 23 different different JJ 40404 5016 24 from from IN 40404 5016 25 that that DT 40404 5016 26 of of IN 40404 5016 27 the the DT 40404 5016 28 flora flora NNS 40404 5016 29 of of IN 40404 5016 30 to to IN 40404 5016 31 - - HYPH 40404 5016 32 day day NN 40404 5016 33 . . . 40404 5017 1 In in IN 40404 5017 2 the the DT 40404 5017 3 earlier early JJR 40404 5017 4 Tertiary Tertiary NNP 40404 5017 5 , , , 40404 5017 6 palms palm NNS 40404 5017 7 flourished flourish VBD 40404 5017 8 over over IN 40404 5017 9 northern northern JJ 40404 5017 10 Europe Europe NNP 40404 5017 11 , , , 40404 5017 12 and and CC 40404 5017 13 in in IN 40404 5017 14 the the DT 40404 5017 15 northwestern northwestern JJ 40404 5017 16 United United NNP 40404 5017 17 States States NNP 40404 5017 18 grew grow VBD 40404 5017 19 the the DT 40404 5017 20 magnolia magnolia NNS 40404 5017 21 and and CC 40404 5017 22 laurel laurel NN 40404 5017 23 , , , 40404 5017 24 along along IN 40404 5017 25 with with IN 40404 5017 26 the the DT 40404 5017 27 walnut walnut NNP 40404 5017 28 , , , 40404 5017 29 oak oak NNP 40404 5017 30 , , , 40404 5017 31 and and CC 40404 5017 32 elm elm NNP 40404 5017 33 . . . 40404 5018 1 Even even RB 40404 5018 2 in in IN 40404 5018 3 northern northern JJ 40404 5018 4 Greenland Greenland NNP 40404 5018 5 and and CC 40404 5018 6 in in IN 40404 5018 7 Spitzbergen Spitzbergen NNP 40404 5018 8 there there EX 40404 5018 9 were be VBD 40404 5018 10 lakes lake NNS 40404 5018 11 covered cover VBN 40404 5018 12 with with IN 40404 5018 13 water water NN 40404 5018 14 lilies lily NNS 40404 5018 15 and and CC 40404 5018 16 surrounded surround VBN 40404 5018 17 by by IN 40404 5018 18 forests forest NNS 40404 5018 19 of of IN 40404 5018 20 maples maple NNS 40404 5018 21 , , , 40404 5018 22 poplars poplar NNS 40404 5018 23 , , , 40404 5018 24 limes lime NNS 40404 5018 25 , , , 40404 5018 26 the the DT 40404 5018 27 cypress cypress NN 40404 5018 28 of of IN 40404 5018 29 our -PRON- PRP$ 40404 5018 30 southern southern JJ 40404 5018 31 states state NNS 40404 5018 32 , , , 40404 5018 33 and and CC 40404 5018 34 noble noble JJ 40404 5018 35 sequoias sequoia NNS 40404 5018 36 similar similar JJ 40404 5018 37 to to IN 40404 5018 38 the the DT 40404 5018 39 " " `` 40404 5018 40 big big JJ 40404 5018 41 trees tree NNS 40404 5018 42 " " '' 40404 5018 43 and and CC 40404 5018 44 redwoods redwood NNS 40404 5018 45 of of IN 40404 5018 46 California California NNP 40404 5018 47 . . . 40404 5019 1 A a DT 40404 5019 2 warm warm JJ 40404 5019 3 climate climate NN 40404 5019 4 like like IN 40404 5019 5 that that DT 40404 5019 6 of of IN 40404 5019 7 the the DT 40404 5019 8 Mesozoic Mesozoic NNP 40404 5019 9 , , , 40404 5019 10 therefore therefore RB 40404 5019 11 , , , 40404 5019 12 prevailed prevail VBD 40404 5019 13 over over IN 40404 5019 14 North North NNP 40404 5019 15 America America NNP 40404 5019 16 and and CC 40404 5019 17 Europe Europe NNP 40404 5019 18 , , , 40404 5019 19 extending extend VBG 40404 5019 20 far far RB 40404 5019 21 toward toward IN 40404 5019 22 the the DT 40404 5019 23 pole pole NN 40404 5019 24 . . . 40404 5020 1 In in IN 40404 5020 2 the the DT 40404 5020 3 later later JJ 40404 5020 4 Tertiary Tertiary NNP 40404 5020 5 the the DT 40404 5020 6 climate climate NN 40404 5020 7 gradually gradually RB 40404 5020 8 became become VBD 40404 5020 9 cooler cool JJR 40404 5020 10 . . . 40404 5021 1 Palms palm NNS 40404 5021 2 disappeared disappear VBD 40404 5021 3 from from IN 40404 5021 4 Europe Europe NNP 40404 5021 5 , , , 40404 5021 6 and and CC 40404 5021 7 everywhere everywhere RB 40404 5021 8 the the DT 40404 5021 9 aspect aspect NN 40404 5021 10 of of IN 40404 5021 11 forests forest NNS 40404 5021 12 and and CC 40404 5021 13 open open JJ 40404 5021 14 lands land NNS 40404 5021 15 became become VBD 40404 5021 16 more more RBR 40404 5021 17 like like IN 40404 5021 18 that that DT 40404 5021 19 of of IN 40404 5021 20 to to IN 40404 5021 21 - - HYPH 40404 5021 22 day day NN 40404 5021 23 . . . 40404 5022 1 Grasses grass NNS 40404 5022 2 became become VBD 40404 5022 3 abundant abundant JJ 40404 5022 4 , , , 40404 5022 5 furnishing furnish VBG 40404 5022 6 a a DT 40404 5022 7 new new JJ 40404 5022 8 food food NN 40404 5022 9 for for IN 40404 5022 10 herbivorous herbivorous JJ 40404 5022 11 animals animal NNS 40404 5022 12 . . . 40404 5023 1 = = NFP 40404 5023 2 Animal animal JJ 40404 5023 3 life life NN 40404 5023 4 of of IN 40404 5023 5 the the DT 40404 5023 6 Tertiary.= Tertiary.= NNS 40404 5023 7 Little Little NNP 40404 5023 8 needs need VBZ 40404 5023 9 to to TO 40404 5023 10 be be VB 40404 5023 11 said say VBN 40404 5023 12 of of IN 40404 5023 13 the the DT 40404 5023 14 Tertiary tertiary JJ 40404 5023 15 invertebrates invertebrate NNS 40404 5023 16 , , , 40404 5023 17 so so CC 40404 5023 18 nearly nearly RB 40404 5023 19 were be VBD 40404 5023 20 they -PRON- PRP 40404 5023 21 like like IN 40404 5023 22 the the DT 40404 5023 23 invertebrates invertebrate NNS 40404 5023 24 of of IN 40404 5023 25 the the DT 40404 5023 26 present present NN 40404 5023 27 . . . 40404 5024 1 Even even RB 40404 5024 2 in in IN 40404 5024 3 the the DT 40404 5024 4 Eocene Eocene NNP 40404 5024 5 , , , 40404 5024 6 about about RB 40404 5024 7 five five CD 40404 5024 8 per per NN 40404 5024 9 cent cent NN 40404 5024 10 of of IN 40404 5024 11 marine marine JJ 40404 5024 12 shells shell NNS 40404 5024 13 were be VBD 40404 5024 14 of of IN 40404 5024 15 species specie NNS 40404 5024 16 still still RB 40404 5024 17 living live VBG 40404 5024 18 , , , 40404 5024 19 and and CC 40404 5024 20 in in IN 40404 5024 21 the the DT 40404 5024 22 Pliocene Pliocene NNP 40404 5024 23 the the DT 40404 5024 24 proportion proportion NN 40404 5024 25 had have VBD 40404 5024 26 risen rise VBN 40404 5024 27 to to IN 40404 5024 28 more more JJR 40404 5024 29 than than IN 40404 5024 30 one one CD 40404 5024 31 half half NN 40404 5024 32 . . . 40404 5025 1 Fishes fish NNS 40404 5025 2 were be VBD 40404 5025 3 of of IN 40404 5025 4 modern modern JJ 40404 5025 5 types type NNS 40404 5025 6 . . . 40404 5026 1 Teleosts teleost NNS 40404 5026 2 were be VBD 40404 5026 3 now now RB 40404 5026 4 abundant abundant JJ 40404 5026 5 . . . 40404 5027 1 The the DT 40404 5027 2 ocean ocean NN 40404 5027 3 teemed teem VBD 40404 5027 4 with with IN 40404 5027 5 sharks shark NNS 40404 5027 6 , , , 40404 5027 7 some some DT 40404 5027 8 of of IN 40404 5027 9 them -PRON- PRP 40404 5027 10 being be VBG 40404 5027 11 voracious voracious JJ 40404 5027 12 monsters monster NNS 40404 5027 13 seventy seventy CD 40404 5027 14 - - HYPH 40404 5027 15 five five CD 40404 5027 16 feet foot NNS 40404 5027 17 and and CC 40404 5027 18 even even RB 40404 5027 19 more more RBR 40404 5027 20 in in IN 40404 5027 21 length length NN 40404 5027 22 , , , 40404 5027 23 with with IN 40404 5027 24 a a DT 40404 5027 25 gape gape NN 40404 5027 26 of of IN 40404 5027 27 jaw jaw NN 40404 5027 28 of of IN 40404 5027 29 six six CD 40404 5027 30 feet foot NNS 40404 5027 31 , , , 40404 5027 32 as as IN 40404 5027 33 estimated estimate VBN 40404 5027 34 by by IN 40404 5027 35 the the DT 40404 5027 36 size size NN 40404 5027 37 of of IN 40404 5027 38 their -PRON- PRP$ 40404 5027 39 enormous enormous JJ 40404 5027 40 sharp sharp RB 40404 5027 41 - - HYPH 40404 5027 42 edged edged JJ 40404 5027 43 teeth tooth NNS 40404 5027 44 . . . 40404 5028 1 Snakes snake NNS 40404 5028 2 are be VBP 40404 5028 3 found find VBN 40404 5028 4 for for IN 40404 5028 5 the the DT 40404 5028 6 first first JJ 40404 5028 7 time time NN 40404 5028 8 in in IN 40404 5028 9 the the DT 40404 5028 10 early early JJ 40404 5028 11 Tertiary Tertiary NNP 40404 5028 12 . . . 40404 5029 1 These these DT 40404 5029 2 limbless limbless NN 40404 5029 3 reptiles reptile NNS 40404 5029 4 , , , 40404 5029 5 evolved evolve VBN 40404 5029 6 by by IN 40404 5029 7 degeneration degeneration NN 40404 5029 8 from from IN 40404 5029 9 lizardlike lizardlike JJ 40404 5029 10 ancestors ancestor NNS 40404 5029 11 , , , 40404 5029 12 appeared appear VBD 40404 5029 13 in in IN 40404 5029 14 nonpoisonous nonpoisonous JJ 40404 5029 15 types type NNS 40404 5029 16 scarcely scarcely RB 40404 5029 17 to to TO 40404 5029 18 be be VB 40404 5029 19 distinguished distinguish VBN 40404 5029 20 from from IN 40404 5029 21 those those DT 40404 5029 22 of of IN 40404 5029 23 the the DT 40404 5029 24 present present JJ 40404 5029 25 day day NN 40404 5029 26 . . . 40404 5030 1 = = NFP 40404 5030 2 Mammals mammal NNS 40404 5030 3 of of IN 40404 5030 4 the the DT 40404 5030 5 early early JJ 40404 5030 6 Tertiary.= Tertiary.= NNS 40404 5030 7 The the DT 40404 5030 8 fossils fossil NNS 40404 5030 9 of of IN 40404 5030 10 continental continental JJ 40404 5030 11 deposits deposit NNS 40404 5030 12 of of IN 40404 5030 13 the the DT 40404 5030 14 earliest early JJS 40404 5030 15 Eocene Eocene NNP 40404 5030 16 show show NN 40404 5030 17 that that IN 40404 5030 18 a a DT 40404 5030 19 marked marked JJ 40404 5030 20 advance advance NN 40404 5030 21 had have VBD 40404 5030 22 now now RB 40404 5030 23 been be VBN 40404 5030 24 made make VBN 40404 5030 25 in in IN 40404 5030 26 the the DT 40404 5030 27 evolution evolution NN 40404 5030 28 of of IN 40404 5030 29 the the DT 40404 5030 30 Mammalia Mammalia NNP 40404 5030 31 . . . 40404 5031 1 The the DT 40404 5031 2 higher high JJR 40404 5031 3 mammals mammal NNS 40404 5031 4 had have VBD 40404 5031 5 appeared appear VBN 40404 5031 6 , , , 40404 5031 7 and and CC 40404 5031 8 henceforth henceforth RB 40404 5031 9 the the DT 40404 5031 10 lower low JJR 40404 5031 11 mammals mammal NNS 40404 5031 12 -- -- : 40404 5031 13 the the DT 40404 5031 14 monotremes monotreme NNS 40404 5031 15 and and CC 40404 5031 16 the the DT 40404 5031 17 marsupials marsupial NNS 40404 5031 18 -- -- : 40404 5031 19 are be VBP 40404 5031 20 reduced reduce VBN 40404 5031 21 to to IN 40404 5031 22 a a DT 40404 5031 23 subordinate subordinate JJ 40404 5031 24 place place NN 40404 5031 25 . . . 40404 5032 1 [ [ -LRB- 40404 5032 2 Illustration illustration NN 40404 5032 3 : : : 40404 5032 4 Fig Fig NNP 40404 5032 5 . . . 40404 5033 1 344 344 CD 40404 5033 2 . . . 40404 5034 1 Phenacodus Phenacodus NNP 40404 5034 2 ] ] -RRB- 40404 5034 3 These these DT 40404 5034 4 first first JJ 40404 5034 5 true true JJ 40404 5034 6 mammals mammal NNS 40404 5034 7 were be VBD 40404 5034 8 archaic archaic NNP 40404 5034 9 and and CC 40404 5034 10 generalized generalize VBN 40404 5034 11 in in IN 40404 5034 12 structure structure NN 40404 5034 13 . . . 40404 5035 1 Their -PRON- PRP$ 40404 5035 2 feet foot NNS 40404 5035 3 were be VBD 40404 5035 4 of of IN 40404 5035 5 the the DT 40404 5035 6 primitive primitive JJ 40404 5035 7 type type NN 40404 5035 8 , , , 40404 5035 9 with with IN 40404 5035 10 five five CD 40404 5035 11 toes toe NNS 40404 5035 12 of of IN 40404 5035 13 about about RB 40404 5035 14 equal equal JJ 40404 5035 15 length length NN 40404 5035 16 . . . 40404 5036 1 They -PRON- PRP 40404 5036 2 were be VBD 40404 5036 3 also also RB 40404 5036 4 _ _ NNP 40404 5036 5 plantigrades_,--that plantigrades_,--that NNP 40404 5036 6 is be VBZ 40404 5036 7 , , , 40404 5036 8 they -PRON- PRP 40404 5036 9 touched touch VBD 40404 5036 10 the the DT 40404 5036 11 ground ground NN 40404 5036 12 with with IN 40404 5036 13 the the DT 40404 5036 14 sole sole NN 40404 5036 15 of of IN 40404 5036 16 the the DT 40404 5036 17 entire entire JJ 40404 5036 18 foot foot NN 40404 5036 19 from from IN 40404 5036 20 toe toe NN 40404 5036 21 to to IN 40404 5036 22 heel heel NN 40404 5036 23 . . . 40404 5037 1 No no DT 40404 5037 2 foot foot NN 40404 5037 3 had have VBD 40404 5037 4 yet yet RB 40404 5037 5 become become VBN 40404 5037 6 adapted adapted JJ 40404 5037 7 to to IN 40404 5037 8 swift swift NN 40404 5037 9 running running NN 40404 5037 10 by by IN 40404 5037 11 a a DT 40404 5037 12 decrease decrease NN 40404 5037 13 in in IN 40404 5037 14 the the DT 40404 5037 15 number number NN 40404 5037 16 of of IN 40404 5037 17 digits digit NNS 40404 5037 18 and and CC 40404 5037 19 by by IN 40404 5037 20 lifting lift VBG 40404 5037 21 the the DT 40404 5037 22 heel heel NN 40404 5037 23 and and CC 40404 5037 24 sole sole NN 40404 5037 25 so so IN 40404 5037 26 that that IN 40404 5037 27 only only RB 40404 5037 28 the the DT 40404 5037 29 toes toe NNS 40404 5037 30 touch touch VBP 40404 5037 31 the the DT 40404 5037 32 ground,--a ground,--a NNP 40404 5037 33 tread tread NN 40404 5037 34 called call VBN 40404 5037 35 _ _ NNP 40404 5037 36 digitigrade digitigrade NN 40404 5037 37 _ _ NNP 40404 5037 38 . . . 40404 5038 1 Nor nor CC 40404 5038 2 was be VBD 40404 5038 3 there there EX 40404 5038 4 yet yet RB 40404 5038 5 any any DT 40404 5038 6 foot foot NN 40404 5038 7 like like IN 40404 5038 8 that that DT 40404 5038 9 of of IN 40404 5038 10 the the DT 40404 5038 11 cats cat NNS 40404 5038 12 , , , 40404 5038 13 with with IN 40404 5038 14 sharp sharp JJ 40404 5038 15 retractile retractile NN 40404 5038 16 claws claws NN 40404 5038 17 adapted adapt VBN 40404 5038 18 to to IN 40404 5038 19 seizing seize VBG 40404 5038 20 and and CC 40404 5038 21 tearing tear VBG 40404 5038 22 the the DT 40404 5038 23 prey prey NN 40404 5038 24 . . . 40404 5039 1 The the DT 40404 5039 2 forearm forearm NN 40404 5039 3 and and CC 40404 5039 4 the the DT 40404 5039 5 lower low JJR 40404 5039 6 leg leg NN 40404 5039 7 each each DT 40404 5039 8 had have VBD 40404 5039 9 still still RB 40404 5039 10 two two CD 40404 5039 11 separate separate JJ 40404 5039 12 bones bone NNS 40404 5039 13 ( ( -LRB- 40404 5039 14 ulna ulna NN 40404 5039 15 and and CC 40404 5039 16 radius radius NN 40404 5039 17 , , , 40404 5039 18 fibula fibula NNP 40404 5039 19 and and CC 40404 5039 20 tibia tibia NNP 40404 5039 21 ) ) -RRB- 40404 5039 22 , , , 40404 5039 23 neither neither DT 40404 5039 24 pair pair NN 40404 5039 25 having have VBG 40404 5039 26 been be VBN 40404 5039 27 replaced replace VBN 40404 5039 28 with with IN 40404 5039 29 a a DT 40404 5039 30 single single JJ 40404 5039 31 strong strong JJ 40404 5039 32 bone bone NN 40404 5039 33 , , , 40404 5039 34 as as IN 40404 5039 35 in in IN 40404 5039 36 the the DT 40404 5039 37 leg leg NN 40404 5039 38 of of IN 40404 5039 39 the the DT 40404 5039 40 horse horse NN 40404 5039 41 . . . 40404 5040 1 The the DT 40404 5040 2 teeth tooth NNS 40404 5040 3 also also RB 40404 5040 4 were be VBD 40404 5040 5 primitive primitive JJ 40404 5040 6 in in IN 40404 5040 7 type type NN 40404 5040 8 and and CC 40404 5040 9 of of IN 40404 5040 10 full full JJ 40404 5040 11 number number NN 40404 5040 12 . . . 40404 5041 1 The the DT 40404 5041 2 complex complex JJ 40404 5041 3 heavy heavy JJ 40404 5041 4 grinders grinder NNS 40404 5041 5 of of IN 40404 5041 6 the the DT 40404 5041 7 horse horse NN 40404 5041 8 and and CC 40404 5041 9 elephant elephant NN 40404 5041 10 , , , 40404 5041 11 the the DT 40404 5041 12 sharp sharp JJ 40404 5041 13 cutting cut VBG 40404 5041 14 teeth tooth NNS 40404 5041 15 of of IN 40404 5041 16 the the DT 40404 5041 17 carnivores carnivore NNS 40404 5041 18 , , , 40404 5041 19 and and CC 40404 5041 20 the the DT 40404 5041 21 cropping crop VBG 40404 5041 22 teeth tooth NNS 40404 5041 23 of of IN 40404 5041 24 the the DT 40404 5041 25 grass grass NN 40404 5041 26 eaters eater NNS 40404 5041 27 were be VBD 40404 5041 28 all all RB 40404 5041 29 still still RB 40404 5041 30 to to TO 40404 5041 31 come come VB 40404 5041 32 . . . 40404 5042 1 Phenacodus Phenacodus NNP 40404 5042 2 is be VBZ 40404 5042 3 a a DT 40404 5042 4 characteristic characteristic JJ 40404 5042 5 genus genus NN 40404 5042 6 of of IN 40404 5042 7 the the DT 40404 5042 8 early early JJ 40404 5042 9 Eocene Eocene NNP 40404 5042 10 , , , 40404 5042 11 whose whose WP$ 40404 5042 12 species specie NNS 40404 5042 13 varied vary VBN 40404 5042 14 in in IN 40404 5042 15 size size NN 40404 5042 16 from from IN 40404 5042 17 that that DT 40404 5042 18 of of IN 40404 5042 19 a a DT 40404 5042 20 bulldog bulldog NN 40404 5042 21 to to IN 40404 5042 22 that that DT 40404 5042 23 of of IN 40404 5042 24 an an DT 40404 5042 25 animal animal NN 40404 5042 26 a a DT 40404 5042 27 little little RB 40404 5042 28 larger large JJR 40404 5042 29 than than IN 40404 5042 30 a a DT 40404 5042 31 sheep sheep NN 40404 5042 32 . . . 40404 5043 1 Its -PRON- PRP$ 40404 5043 2 feet foot NNS 40404 5043 3 were be VBD 40404 5043 4 primitive primitive JJ 40404 5043 5 , , , 40404 5043 6 and and CC 40404 5043 7 their -PRON- PRP$ 40404 5043 8 five five CD 40404 5043 9 toes toe NNS 40404 5043 10 bore bear VBD 40404 5043 11 nails nail NNS 40404 5043 12 intermediate intermediate JJ 40404 5043 13 in in IN 40404 5043 14 form form NN 40404 5043 15 between between IN 40404 5043 16 a a DT 40404 5043 17 claw claw NN 40404 5043 18 and and CC 40404 5043 19 a a DT 40404 5043 20 hoof hoof NN 40404 5043 21 . . . 40404 5044 1 The the DT 40404 5044 2 archaic archaic JJ 40404 5044 3 type type NN 40404 5044 4 of of IN 40404 5044 5 teeth tooth NNS 40404 5044 6 indicates indicate VBZ 40404 5044 7 that that IN 40404 5044 8 the the DT 40404 5044 9 animal animal NN 40404 5044 10 was be VBD 40404 5044 11 omnivorous omnivorous JJ 40404 5044 12 in in IN 40404 5044 13 diet diet NN 40404 5044 14 . . . 40404 5045 1 A a DT 40404 5045 2 cast cast NN 40404 5045 3 of of IN 40404 5045 4 the the DT 40404 5045 5 brain brain NN 40404 5045 6 cavity cavity NN 40404 5045 7 shows show VBZ 40404 5045 8 that that IN 40404 5045 9 , , , 40404 5045 10 like like IN 40404 5045 11 its -PRON- PRP$ 40404 5045 12 associates associate NNS 40404 5045 13 of of IN 40404 5045 14 the the DT 40404 5045 15 time time NN 40404 5045 16 , , , 40404 5045 17 its -PRON- PRP$ 40404 5045 18 brain brain NN 40404 5045 19 was be VBD 40404 5045 20 extremely extremely RB 40404 5045 21 small small JJ 40404 5045 22 and and CC 40404 5045 23 nearly nearly RB 40404 5045 24 smooth smooth JJ 40404 5045 25 , , , 40404 5045 26 having have VBG 40404 5045 27 little little JJ 40404 5045 28 more more JJR 40404 5045 29 than than IN 40404 5045 30 traces trace NNS 40404 5045 31 of of IN 40404 5045 32 convolutions convolution NNS 40404 5045 33 . . . 40404 5046 1 The the DT 40404 5046 2 long long JJ 40404 5046 3 ages age NNS 40404 5046 4 of of IN 40404 5046 5 the the DT 40404 5046 6 Eocene Eocene NNP 40404 5046 7 and and CC 40404 5046 8 the the DT 40404 5046 9 following follow VBG 40404 5046 10 epochs epoch NNS 40404 5046 11 of of IN 40404 5046 12 the the DT 40404 5046 13 Tertiary Tertiary NNP 40404 5046 14 were be VBD 40404 5046 15 times time NNS 40404 5046 16 of of IN 40404 5046 17 comparatively comparatively RB 40404 5046 18 rapid rapid JJ 40404 5046 19 evolution evolution NN 40404 5046 20 among among IN 40404 5046 21 the the DT 40404 5046 22 Mammalia Mammalia NNP 40404 5046 23 . . . 40404 5047 1 The the DT 40404 5047 2 earliest early JJS 40404 5047 3 forms form NNS 40404 5047 4 evolved evolve VBN 40404 5047 5 along along IN 40404 5047 6 diverging diverge VBG 40404 5047 7 lines line NNS 40404 5047 8 toward toward IN 40404 5047 9 the the DT 40404 5047 10 various various JJ 40404 5047 11 specialized specialized JJ 40404 5047 12 types type NNS 40404 5047 13 of of IN 40404 5047 14 hoofed hoofed NNP 40404 5047 15 mammals mammal NNS 40404 5047 16 , , , 40404 5047 17 rodents rodent NNS 40404 5047 18 , , , 40404 5047 19 carnivores carnivore NNS 40404 5047 20 , , , 40404 5047 21 proboscidians proboscidian NNS 40404 5047 22 , , , 40404 5047 23 the the DT 40404 5047 24 primates primate NNS 40404 5047 25 , , , 40404 5047 26 and and CC 40404 5047 27 the the DT 40404 5047 28 other other JJ 40404 5047 29 mammalian mammalian JJ 40404 5047 30 orders order NNS 40404 5047 31 as as IN 40404 5047 32 we -PRON- PRP 40404 5047 33 know know VBP 40404 5047 34 them -PRON- PRP 40404 5047 35 now now RB 40404 5047 36 . . . 40404 5048 1 We -PRON- PRP 40404 5048 2 must must MD 40404 5048 3 describe describe VB 40404 5048 4 the the DT 40404 5048 5 Tertiary tertiary JJ 40404 5048 6 mammals mammal NNS 40404 5048 7 very very RB 40404 5048 8 briefly briefly RB 40404 5048 9 , , , 40404 5048 10 tracing trace VBG 40404 5048 11 the the DT 40404 5048 12 lines line NNS 40404 5048 13 of of IN 40404 5048 14 descent descent NN 40404 5048 15 of of IN 40404 5048 16 only only RB 40404 5048 17 a a DT 40404 5048 18 few few JJ 40404 5048 19 of of IN 40404 5048 20 the the DT 40404 5048 21 more more RBR 40404 5048 22 familiar familiar JJ 40404 5048 23 mammals mammal NNS 40404 5048 24 of of IN 40404 5048 25 the the DT 40404 5048 26 present present NN 40404 5048 27 . . . 40404 5049 1 = = NFP 40404 5049 2 The the DT 40404 5049 3 horse.= horse.= NN 40404 5049 4 The the DT 40404 5049 5 pedigree pedigree NN 40404 5049 6 of of IN 40404 5049 7 the the DT 40404 5049 8 horse horse NN 40404 5049 9 runs run VBZ 40404 5049 10 back back RB 40404 5049 11 into into IN 40404 5049 12 the the DT 40404 5049 13 early early JJ 40404 5049 14 Eocene Eocene NNP 40404 5049 15 through through IN 40404 5049 16 many many JJ 40404 5049 17 genera genera NN 40404 5049 18 and and CC 40404 5049 19 species specie NNS 40404 5049 20 to to IN 40404 5049 21 a a DT 40404 5049 22 five five CD 40404 5049 23 - - HYPH 40404 5049 24 toed,[3 toed,[3 NN 40404 5049 25 ] ] -RRB- 40404 5049 26 short short JJ 40404 5049 27 - - HYPH 40404 5049 28 legged legged JJ 40404 5049 29 ancestor ancestor NN 40404 5049 30 little little RB 40404 5049 31 bigger big JJR 40404 5049 32 than than IN 40404 5049 33 a a DT 40404 5049 34 cat cat NN 40404 5049 35 . . . 40404 5050 1 Its -PRON- PRP$ 40404 5050 2 descendants descendant NNS 40404 5050 3 gradually gradually RB 40404 5050 4 increased increase VBD 40404 5050 5 in in IN 40404 5050 6 stature stature NN 40404 5050 7 and and CC 40404 5050 8 became become VBD 40404 5050 9 better well JJR 40404 5050 10 and and CC 40404 5050 11 better well RBR 40404 5050 12 adapted adapt VBN 40404 5050 13 to to IN 40404 5050 14 swift swift NN 40404 5050 15 running run VBG 40404 5050 16 to to TO 40404 5050 17 escape escape VB 40404 5050 18 their -PRON- PRP$ 40404 5050 19 foes foe NNS 40404 5050 20 . . . 40404 5051 1 The the DT 40404 5051 2 leg leg NN 40404 5051 3 became become VBD 40404 5051 4 longer long RBR 40404 5051 5 , , , 40404 5051 6 and and CC 40404 5051 7 only only RB 40404 5051 8 the the DT 40404 5051 9 tip tip NN 40404 5051 10 of of IN 40404 5051 11 the the DT 40404 5051 12 toes toe NNS 40404 5051 13 struck strike VBD 40404 5051 14 the the DT 40404 5051 15 ground ground NN 40404 5051 16 . . . 40404 5052 1 The the DT 40404 5052 2 middle middle JJ 40404 5052 3 toe toe NN 40404 5052 4 ( ( -LRB- 40404 5052 5 digit digit NN 40404 5052 6 number number NN 40404 5052 7 three three CD 40404 5052 8 ) ) -RRB- 40404 5052 9 , , , 40404 5052 10 originally originally RB 40404 5052 11 the the DT 40404 5052 12 longest long JJS 40404 5052 13 of of IN 40404 5052 14 the the DT 40404 5052 15 five five CD 40404 5052 16 , , , 40404 5052 17 steadily steadily RB 40404 5052 18 enlarged enlarge VBN 40404 5052 19 , , , 40404 5052 20 while while IN 40404 5052 21 the the DT 40404 5052 22 remaining remain VBG 40404 5052 23 digits digit NNS 40404 5052 24 dwindled dwindle VBN 40404 5052 25 and and CC 40404 5052 26 disappeared disappear VBD 40404 5052 27 . . . 40404 5053 1 The the DT 40404 5053 2 inner inner JJ 40404 5053 3 digit digit NN 40404 5053 4 , , , 40404 5053 5 corresponding correspond VBG 40404 5053 6 to to IN 40404 5053 7 the the DT 40404 5053 8 great great JJ 40404 5053 9 toe toe NN 40404 5053 10 and and CC 40404 5053 11 thumb thumb NN 40404 5053 12 , , , 40404 5053 13 was be VBD 40404 5053 14 the the DT 40404 5053 15 first first JJ 40404 5053 16 to to TO 40404 5053 17 go go VB 40404 5053 18 . . . 40404 5054 1 Next next JJ 40404 5054 2 number number NN 40404 5054 3 five five CD 40404 5054 4 , , , 40404 5054 5 the the DT 40404 5054 6 little little JJ 40404 5054 7 finger finger NN 40404 5054 8 , , , 40404 5054 9 was be VBD 40404 5054 10 also also RB 40404 5054 11 dropped drop VBN 40404 5054 12 . . . 40404 5055 1 By by IN 40404 5055 2 the the DT 40404 5055 3 end end NN 40404 5055 4 of of IN 40404 5055 5 the the DT 40404 5055 6 Eocene Eocene NNP 40404 5055 7 a a DT 40404 5055 8 three three CD 40404 5055 9 - - HYPH 40404 5055 10 toed toed NNS 40404 5055 11 genus genus NN 40404 5055 12 of of IN 40404 5055 13 the the DT 40404 5055 14 horse horse NN 40404 5055 15 family family NN 40404 5055 16 had have VBD 40404 5055 17 appeared appear VBN 40404 5055 18 , , , 40404 5055 19 as as RB 40404 5055 20 large large JJ 40404 5055 21 as as IN 40404 5055 22 a a DT 40404 5055 23 sheep sheep NN 40404 5055 24 . . . 40404 5056 1 The the DT 40404 5056 2 hoof hoof NN 40404 5056 3 of of IN 40404 5056 4 digit digit NN 40404 5056 5 number number NN 40404 5056 6 three three CD 40404 5056 7 now now RB 40404 5056 8 supported support VBN 40404 5056 9 most most JJS 40404 5056 10 of of IN 40404 5056 11 the the DT 40404 5056 12 weight weight NN 40404 5056 13 , , , 40404 5056 14 but but CC 40404 5056 15 the the DT 40404 5056 16 slender slend JJR 40404 5056 17 hoofs hoofs NN 40404 5056 18 of of IN 40404 5056 19 digits digits NNP 40404 5056 20 two two CD 40404 5056 21 and and CC 40404 5056 22 four four CD 40404 5056 23 were be VBD 40404 5056 24 still still RB 40404 5056 25 serviceable serviceable JJ 40404 5056 26 . . . 40404 5057 1 In in IN 40404 5057 2 the the DT 40404 5057 3 Miocene Miocene NNP 40404 5057 4 the the DT 40404 5057 5 stature stature NN 40404 5057 6 of of IN 40404 5057 7 the the DT 40404 5057 8 ancestors ancestor NNS 40404 5057 9 of of IN 40404 5057 10 the the DT 40404 5057 11 horse horse NN 40404 5057 12 increased increase VBD 40404 5057 13 to to IN 40404 5057 14 that that DT 40404 5057 15 of of IN 40404 5057 16 a a DT 40404 5057 17 pony pony NN 40404 5057 18 . . . 40404 5058 1 The the DT 40404 5058 2 feet foot NNS 40404 5058 3 were be VBD 40404 5058 4 still still RB 40404 5058 5 three three CD 40404 5058 6 - - HYPH 40404 5058 7 toed toed RB 40404 5058 8 , , , 40404 5058 9 but but CC 40404 5058 10 the the DT 40404 5058 11 side side NN 40404 5058 12 hoofs hoofs NN 40404 5058 13 were be VBD 40404 5058 14 now now RB 40404 5058 15 mere mere JJ 40404 5058 16 dewclaws dewclaw NNS 40404 5058 17 and and CC 40404 5058 18 scarcely scarcely RB 40404 5058 19 touched touch VBD 40404 5058 20 the the DT 40404 5058 21 ground ground NN 40404 5058 22 . . . 40404 5059 1 The the DT 40404 5059 2 evolution evolution NN 40404 5059 3 of of IN 40404 5059 4 the the DT 40404 5059 5 family family NN 40404 5059 6 was be VBD 40404 5059 7 completed complete VBN 40404 5059 8 in in IN 40404 5059 9 the the DT 40404 5059 10 Pliocene Pliocene NNP 40404 5059 11 . . . 40404 5060 1 The the DT 40404 5060 2 middle middle JJ 40404 5060 3 toe toe NN 40404 5060 4 was be VBD 40404 5060 5 enlarged enlarge VBN 40404 5060 6 still still RB 40404 5060 7 more more RBR 40404 5060 8 , , , 40404 5060 9 the the DT 40404 5060 10 side side NN 40404 5060 11 toes toe NNS 40404 5060 12 were be VBD 40404 5060 13 dropped drop VBN 40404 5060 14 , , , 40404 5060 15 and and CC 40404 5060 16 the the DT 40404 5060 17 palm palm NN 40404 5060 18 and and CC 40404 5060 19 foot foot NN 40404 5060 20 bones bone NNS 40404 5060 21 which which WDT 40404 5060 22 supported support VBD 40404 5060 23 them -PRON- PRP 40404 5060 24 were be VBD 40404 5060 25 reduced reduce VBN 40404 5060 26 to to IN 40404 5060 27 splints splint NNS 40404 5060 28 . . . 40404 5061 1 [ [ -LRB- 40404 5061 2 3 3 CD 40404 5061 3 ] ] -RRB- 40404 5061 4 Or or CC 40404 5061 5 , , , 40404 5061 6 more more RBR 40404 5061 7 accurately accurately RB 40404 5061 8 , , , 40404 5061 9 with with IN 40404 5061 10 four four CD 40404 5061 11 perfect perfect JJ 40404 5061 12 toes toe NNS 40404 5061 13 and and CC 40404 5061 14 a a DT 40404 5061 15 rudimentary rudimentary JJ 40404 5061 16 fifth fifth JJ 40404 5061 17 corresponding corresponding NN 40404 5061 18 to to IN 40404 5061 19 the the DT 40404 5061 20 thumb thumb NN 40404 5061 21 . . . 40404 5062 1 [ [ -LRB- 40404 5062 2 Illustration illustration NN 40404 5062 3 : : : 40404 5062 4 Fig Fig NNP 40404 5062 5 . . . 40404 5063 1 345 345 CD 40404 5063 2 . . . 40404 5064 1 Development development NN 40404 5064 2 of of IN 40404 5064 3 Forefoot Forefoot NNP 40404 5064 4 ( ( -LRB- 40404 5064 5 A a NN 40404 5064 6 ) ) -RRB- 40404 5064 7 , , , 40404 5064 8 the the DT 40404 5064 9 Forearm Forearm NNP 40404 5064 10 ( ( -LRB- 40404 5064 11 B B NNP 40404 5064 12 ) ) -RRB- 40404 5064 13 , , , 40404 5064 14 the the DT 40404 5064 15 Molar Molar NNP 40404 5064 16 ( ( -LRB- 40404 5064 17 C C NNP 40404 5064 18 ) ) -RRB- 40404 5064 19 , , , 40404 5064 20 of of IN 40404 5064 21 the the DT 40404 5064 22 Horse Horse NNP 40404 5064 23 Family Family NNP 40404 5064 24 ] ] -RRB- 40404 5064 25 While while IN 40404 5064 26 these these DT 40404 5064 27 changes change NNS 40404 5064 28 were be VBD 40404 5064 29 in in IN 40404 5064 30 progress progress NN 40404 5064 31 the the DT 40404 5064 32 radius radius NN 40404 5064 33 and and CC 40404 5064 34 ulna ulna NN 40404 5064 35 of of IN 40404 5064 36 the the DT 40404 5064 37 fore fore NN 40404 5064 38 limb limb NN 40404 5064 39 became become VBD 40404 5064 40 consolidated consolidated JJ 40404 5064 41 to to IN 40404 5064 42 a a DT 40404 5064 43 single single JJ 40404 5064 44 bone bone NN 40404 5064 45 ; ; : 40404 5064 46 and and CC 40404 5064 47 in in IN 40404 5064 48 the the DT 40404 5064 49 hind hind NN 40404 5064 50 limb limb NN 40404 5064 51 the the DT 40404 5064 52 fibula fibula NN 40404 5064 53 dwindled dwindle VBD 40404 5064 54 to to IN 40404 5064 55 a a DT 40404 5064 56 splint splint NN 40404 5064 57 , , , 40404 5064 58 while while IN 40404 5064 59 the the DT 40404 5064 60 tibia tibia NNP 40404 5064 61 was be VBD 40404 5064 62 correspondingly correspondingly RB 40404 5064 63 enlarged enlarge VBN 40404 5064 64 . . . 40404 5065 1 The the DT 40404 5065 2 molars molar NNS 40404 5065 3 , , , 40404 5065 4 also also RB 40404 5065 5 gradually gradually RB 40404 5065 6 lengthened lengthen VBN 40404 5065 7 , , , 40404 5065 8 and and CC 40404 5065 9 became become VBD 40404 5065 10 more more RBR 40404 5065 11 and and CC 40404 5065 12 more more RBR 40404 5065 13 complex complex JJ 40404 5065 14 on on IN 40404 5065 15 their -PRON- PRP$ 40404 5065 16 grinding grind VBG 40404 5065 17 surface surface NN 40404 5065 18 ; ; : 40404 5065 19 the the DT 40404 5065 20 neck neck NN 40404 5065 21 became become VBD 40404 5065 22 longer long RBR 40404 5065 23 ; ; : 40404 5065 24 the the DT 40404 5065 25 brain brain NN 40404 5065 26 steadily steadily RB 40404 5065 27 increased increase VBD 40404 5065 28 in in IN 40404 5065 29 size size NN 40404 5065 30 and and CC 40404 5065 31 its -PRON- PRP$ 40404 5065 32 convolutions convolution NNS 40404 5065 33 became become VBD 40404 5065 34 more more RBR 40404 5065 35 abundant abundant JJ 40404 5065 36 . . . 40404 5066 1 The the DT 40404 5066 2 evolution evolution NN 40404 5066 3 of of IN 40404 5066 4 the the DT 40404 5066 5 horse horse NN 40404 5066 6 has have VBZ 40404 5066 7 made make VBN 40404 5066 8 for for IN 40404 5066 9 greater great JJR 40404 5066 10 fleetness fleetness NN 40404 5066 11 and and CC 40404 5066 12 intelligence intelligence NN 40404 5066 13 . . . 40404 5067 1 = = NFP 40404 5067 2 The the DT 40404 5067 3 rhinoceros rhinocero NNS 40404 5067 4 and and CC 40404 5067 5 tapir.= tapir.= NN 40404 5067 6 These these DT 40404 5067 7 animals animal NNS 40404 5067 8 , , , 40404 5067 9 which which WDT 40404 5067 10 are be VBP 40404 5067 11 grouped group VBN 40404 5067 12 with with IN 40404 5067 13 the the DT 40404 5067 14 horse horse NN 40404 5067 15 among among IN 40404 5067 16 the the DT 40404 5067 17 _ _ NNP 40404 5067 18 odd odd RB 40404 5067 19 - - HYPH 40404 5067 20 toed toed JJ 40404 5067 21 _ _ NNP 40404 5067 22 ( ( -LRB- 40404 5067 23 perissodactyl perissodactyl NNP 40404 5067 24 ) ) -RRB- 40404 5067 25 mammals mammal NNS 40404 5067 26 , , , 40404 5067 27 are be VBP 40404 5067 28 now now RB 40404 5067 29 verging verge VBG 40404 5067 30 toward toward IN 40404 5067 31 extinction extinction NN 40404 5067 32 . . . 40404 5068 1 In in IN 40404 5068 2 the the DT 40404 5068 3 rhinoceros rhinocero NNS 40404 5068 4 , , , 40404 5068 5 evolution evolution NN 40404 5068 6 seems seem VBZ 40404 5068 7 to to TO 40404 5068 8 have have VB 40404 5068 9 taken take VBN 40404 5068 10 the the DT 40404 5068 11 opposite opposite JJ 40404 5068 12 course course NN 40404 5068 13 from from IN 40404 5068 14 that that DT 40404 5068 15 of of IN 40404 5068 16 the the DT 40404 5068 17 horse horse NN 40404 5068 18 . . . 40404 5069 1 As as IN 40404 5069 2 the the DT 40404 5069 3 animal animal NN 40404 5069 4 increased increase VBD 40404 5069 5 in in IN 40404 5069 6 size size NN 40404 5069 7 it -PRON- PRP 40404 5069 8 became become VBD 40404 5069 9 more more RBR 40404 5069 10 clumsy clumsy JJ 40404 5069 11 , , , 40404 5069 12 its -PRON- PRP$ 40404 5069 13 limbs limb NNS 40404 5069 14 became become VBD 40404 5069 15 shorter short JJR 40404 5069 16 and and CC 40404 5069 17 more more RBR 40404 5069 18 massive massive JJ 40404 5069 19 , , , 40404 5069 20 and and CC 40404 5069 21 , , , 40404 5069 22 perhaps perhaps RB 40404 5069 23 because because IN 40404 5069 24 of of IN 40404 5069 25 its -PRON- PRP$ 40404 5069 26 great great JJ 40404 5069 27 weight weight NN 40404 5069 28 , , , 40404 5069 29 the the DT 40404 5069 30 number number NN 40404 5069 31 of of IN 40404 5069 32 digits digit NNS 40404 5069 33 were be VBD 40404 5069 34 not not RB 40404 5069 35 reduced reduce VBN 40404 5069 36 below below IN 40404 5069 37 the the DT 40404 5069 38 number number NN 40404 5069 39 three three CD 40404 5069 40 . . . 40404 5070 1 Like like IN 40404 5070 2 other other JJ 40404 5070 3 large large JJ 40404 5070 4 herbivores herbivore NNS 40404 5070 5 , , , 40404 5070 6 the the DT 40404 5070 7 rhinoceros rhinocero NNS 40404 5070 8 , , , 40404 5070 9 too too RB 40404 5070 10 slow slow JJ 40404 5070 11 to to TO 40404 5070 12 escape escape VB 40404 5070 13 its -PRON- PRP$ 40404 5070 14 enemies enemy NNS 40404 5070 15 by by IN 40404 5070 16 flight flight NN 40404 5070 17 , , , 40404 5070 18 learned learn VBD 40404 5070 19 to to TO 40404 5070 20 withstand withstand VB 40404 5070 21 them -PRON- PRP 40404 5070 22 . . . 40404 5071 1 It -PRON- PRP 40404 5071 2 developed develop VBD 40404 5071 3 as as IN 40404 5071 4 its -PRON- PRP$ 40404 5071 5 means mean NNS 40404 5071 6 of of IN 40404 5071 7 defense defense NN 40404 5071 8 a a DT 40404 5071 9 nasal nasal NN 40404 5071 10 horn horn NN 40404 5071 11 . . . 40404 5072 1 Peculiar peculiar JJ 40404 5072 2 offshoots offshoot NNS 40404 5072 3 of of IN 40404 5072 4 the the DT 40404 5072 5 line line NN 40404 5072 6 appeared appear VBD 40404 5072 7 at at IN 40404 5072 8 various various JJ 40404 5072 9 times time NNS 40404 5072 10 in in IN 40404 5072 11 the the DT 40404 5072 12 Tertiary Tertiary NNP 40404 5072 13 . . . 40404 5073 1 A a DT 40404 5073 2 rhinoceros rhinoceros NN 40404 5073 3 , , , 40404 5073 4 semiaquatic semiaquatic JJ 40404 5073 5 in in IN 40404 5073 6 habits habit NNS 40404 5073 7 , , , 40404 5073 8 with with IN 40404 5073 9 curved curved JJ 40404 5073 10 tusks tusk NNS 40404 5073 11 , , , 40404 5073 12 resembling resemble VBG 40404 5073 13 in in IN 40404 5073 14 aspect aspect NN 40404 5073 15 the the DT 40404 5073 16 hippopotamus hippopotamus NN 40404 5073 17 , , , 40404 5073 18 lived live VBD 40404 5073 19 along along IN 40404 5073 20 the the DT 40404 5073 21 water water NN 40404 5073 22 courses course NNS 40404 5073 23 of of IN 40404 5073 24 the the DT 40404 5073 25 plains plains NNPS 40404 5073 26 east east RB 40404 5073 27 of of IN 40404 5073 28 the the DT 40404 5073 29 Rockies Rockies NNPS 40404 5073 30 , , , 40404 5073 31 and and CC 40404 5073 32 its -PRON- PRP$ 40404 5073 33 bones bone NNS 40404 5073 34 are be VBP 40404 5073 35 now now RB 40404 5073 36 found find VBN 40404 5073 37 by by IN 40404 5073 38 the the DT 40404 5073 39 thousands thousand NNS 40404 5073 40 in in IN 40404 5073 41 the the DT 40404 5073 42 Miocene Miocene NNP 40404 5073 43 of of IN 40404 5073 44 Kansas Kansas NNP 40404 5073 45 . . . 40404 5074 1 Another another DT 40404 5074 2 developed develop VBN 40404 5074 3 along along IN 40404 5074 4 a a DT 40404 5074 5 line line NN 40404 5074 6 parallel parallel JJ 40404 5074 7 to to IN 40404 5074 8 that that DT 40404 5074 9 of of IN 40404 5074 10 the the DT 40404 5074 11 horse horse NN 40404 5074 12 , , , 40404 5074 13 and and CC 40404 5074 14 herds herd NNS 40404 5074 15 of of IN 40404 5074 16 these these DT 40404 5074 17 light light NN 40404 5074 18 - - HYPH 40404 5074 19 limbed limbed JJ 40404 5074 20 and and CC 40404 5074 21 swift swift NN 40404 5074 22 - - HYPH 40404 5074 23 footed footed JJ 40404 5074 24 running running NN 40404 5074 25 rhinoceroses rhinoceros NNS 40404 5074 26 ranged range VBD 40404 5074 27 the the DT 40404 5074 28 Great Great NNP 40404 5074 29 Plains Plains NNPS 40404 5074 30 from from IN 40404 5074 31 the the DT 40404 5074 32 Dakotas Dakotas NNP 40404 5074 33 southward southward NN 40404 5074 34 . . . 40404 5075 1 The the DT 40404 5075 2 tapirs tapir NNS 40404 5075 3 are be VBP 40404 5075 4 an an DT 40404 5075 5 ancient ancient JJ 40404 5075 6 family family NN 40404 5075 7 which which WDT 40404 5075 8 has have VBZ 40404 5075 9 changed change VBN 40404 5075 10 but but CC 40404 5075 11 little little JJ 40404 5075 12 since since IN 40404 5075 13 it -PRON- PRP 40404 5075 14 separated separate VBD 40404 5075 15 from from IN 40404 5075 16 the the DT 40404 5075 17 other other JJ 40404 5075 18 perissodactyl perissodactyl JJ 40404 5075 19 stocks stock NNS 40404 5075 20 in in IN 40404 5075 21 the the DT 40404 5075 22 early early JJ 40404 5075 23 Tertiary Tertiary NNP 40404 5075 24 . . . 40404 5076 1 At at IN 40404 5076 2 present present NN 40404 5076 3 , , , 40404 5076 4 tapirs tapir NNS 40404 5076 5 are be VBP 40404 5076 6 found find VBN 40404 5076 7 only only RB 40404 5076 8 in in IN 40404 5076 9 South South NNP 40404 5076 10 America America NNP 40404 5076 11 and and CC 40404 5076 12 southern southern JJ 40404 5076 13 Asia,--a asia,--a CD 40404 5076 14 remarkable remarkable JJ 40404 5076 15 distribution distribution NN 40404 5076 16 which which WDT 40404 5076 17 we -PRON- PRP 40404 5076 18 could could MD 40404 5076 19 not not RB 40404 5076 20 explain explain VB 40404 5076 21 were be VBD 40404 5076 22 it -PRON- PRP 40404 5076 23 not not RB 40404 5076 24 that that IN 40404 5076 25 the the DT 40404 5076 26 geological geological JJ 40404 5076 27 record record NN 40404 5076 28 shows show VBZ 40404 5076 29 that that IN 40404 5076 30 during during IN 40404 5076 31 Tertiary Tertiary NNP 40404 5076 32 times time NNS 40404 5076 33 tapirs tapir NNS 40404 5076 34 ranged range VBD 40404 5076 35 throughout throughout IN 40404 5076 36 the the DT 40404 5076 37 northern northern JJ 40404 5076 38 hemisphere hemisphere NN 40404 5076 39 , , , 40404 5076 40 making make VBG 40404 5076 41 their -PRON- PRP$ 40404 5076 42 way way NN 40404 5076 43 to to IN 40404 5076 44 South South NNP 40404 5076 45 America America NNP 40404 5076 46 late late RB 40404 5076 47 in in IN 40404 5076 48 that that DT 40404 5076 49 period period NN 40404 5076 50 . . . 40404 5077 1 During during IN 40404 5077 2 the the DT 40404 5077 3 Pleistocene Pleistocene NNP 40404 5077 4 they -PRON- PRP 40404 5077 5 became become VBD 40404 5077 6 extinct extinct JJ 40404 5077 7 over over IN 40404 5077 8 all all PDT 40404 5077 9 the the DT 40404 5077 10 intervening intervening NN 40404 5077 11 lands land NNS 40404 5077 12 between between IN 40404 5077 13 the the DT 40404 5077 14 widely widely RB 40404 5077 15 separated separated JJ 40404 5077 16 regions region NNS 40404 5077 17 where where WRB 40404 5077 18 now now RB 40404 5077 19 they -PRON- PRP 40404 5077 20 live live VBP 40404 5077 21 . . . 40404 5078 1 The the DT 40404 5078 2 geographic geographic JJ 40404 5078 3 distribution distribution NN 40404 5078 4 of of IN 40404 5078 5 animals animal NNS 40404 5078 6 , , , 40404 5078 7 as as RB 40404 5078 8 well well RB 40404 5078 9 as as IN 40404 5078 10 their -PRON- PRP$ 40404 5078 11 relationships relationship NNS 40404 5078 12 and and CC 40404 5078 13 origins origin NNS 40404 5078 14 , , , 40404 5078 15 can can MD 40404 5078 16 be be VB 40404 5078 17 understood understand VBN 40404 5078 18 only only RB 40404 5078 19 through through IN 40404 5078 20 a a DT 40404 5078 21 study study NN 40404 5078 22 of of IN 40404 5078 23 their -PRON- PRP$ 40404 5078 24 geological geological JJ 40404 5078 25 history history NN 40404 5078 26 . . . 40404 5079 1 [ [ -LRB- 40404 5079 2 Illustration illustration NN 40404 5079 3 : : : 40404 5079 4 Fig Fig NNP 40404 5079 5 . . . 40404 5080 1 346 346 CD 40404 5080 2 . . . 40404 5081 1 A a DT 40404 5081 2 Tertiary Tertiary NNP 40404 5081 3 Mastodon mastodon NN 40404 5081 4 ] ] -RRB- 40404 5081 5 [ [ -LRB- 40404 5081 6 Illustration illustration NN 40404 5081 7 : : : 40404 5081 8 Fig Fig NNP 40404 5081 9 . . . 40404 5082 1 347 347 CD 40404 5082 2 . . . 40404 5083 1 Head Head NNP 40404 5083 2 of of IN 40404 5083 3 Dinothere Dinothere NNP 40404 5083 4 ] ] -RRB- 40404 5083 5 = = NFP 40404 5083 6 The the DT 40404 5083 7 proboscidians.= proboscidians.= CD 40404 5083 8 This this DT 40404 5083 9 unique unique JJ 40404 5083 10 order order NN 40404 5083 11 of of IN 40404 5083 12 hoofed hoofed JJ 40404 5083 13 mammals mammal NNS 40404 5083 14 , , , 40404 5083 15 of of IN 40404 5083 16 which which WDT 40404 5083 17 the the DT 40404 5083 18 elephant elephant NN 40404 5083 19 is be VBZ 40404 5083 20 the the DT 40404 5083 21 sole sole JJ 40404 5083 22 survivor survivor NN 40404 5083 23 , , , 40404 5083 24 has have VBZ 40404 5083 25 been be VBN 40404 5083 26 traced trace VBN 40404 5083 27 back back RB 40404 5083 28 to to IN 40404 5083 29 the the DT 40404 5083 30 close close NN 40404 5083 31 of of IN 40404 5083 32 the the DT 40404 5083 33 Eocene Eocene NNP 40404 5083 34 . . . 40404 5084 1 In in IN 40404 5084 2 the the DT 40404 5084 3 middle middle NN 40404 5084 4 and and CC 40404 5084 5 later later RB 40404 5084 6 Tertiary Tertiary NNP 40404 5084 7 it -PRON- PRP 40404 5084 8 was be VBD 40404 5084 9 represented represent VBN 40404 5084 10 by by IN 40404 5084 11 huge huge JJ 40404 5084 12 creatures creature NNS 40404 5084 13 so so RB 40404 5084 14 nearly nearly RB 40404 5084 15 akin akin JJ 40404 5084 16 to to IN 40404 5084 17 the the DT 40404 5084 18 mastodons mastodon NNS 40404 5084 19 of of IN 40404 5084 20 the the DT 40404 5084 21 Pleistocene Pleistocene NNP 40404 5084 22 that that WDT 40404 5084 23 they -PRON- PRP 40404 5084 24 are be VBP 40404 5084 25 often often RB 40404 5084 26 included include VBN 40404 5084 27 in in IN 40404 5084 28 that that DT 40404 5084 29 genus genus NN 40404 5084 30 . . . 40404 5085 1 The the DT 40404 5085 2 Tertiary Tertiary NNP 40404 5085 3 _ _ NNP 40404 5085 4 Mastodon Mastodon NNP 40404 5085 5 _ _ NNP 40404 5085 6 was be VBD 40404 5085 7 furnished furnish VBN 40404 5085 8 with with IN 40404 5085 9 a a DT 40404 5085 10 long long JJ 40404 5085 11 , , , 40404 5085 12 flexible flexible JJ 40404 5085 13 proboscis probosci NNS 40404 5085 14 , , , 40404 5085 15 and and CC 40404 5085 16 armed arm VBN 40404 5085 17 with with IN 40404 5085 18 two two CD 40404 5085 19 pairs pair NNS 40404 5085 20 of of IN 40404 5085 21 long long JJ 40404 5085 22 , , , 40404 5085 23 straight straight JJ 40404 5085 24 ivory ivory NN 40404 5085 25 tusks tusk NNS 40404 5085 26 , , , 40404 5085 27 the the DT 40404 5085 28 pair pair NN 40404 5085 29 of of IN 40404 5085 30 the the DT 40404 5085 31 lower low JJR 40404 5085 32 jaw jaw NN 40404 5085 33 being be VBG 40404 5085 34 smaller small JJR 40404 5085 35 . . . 40404 5086 1 The the DT 40404 5086 2 _ _ NNP 40404 5086 3 Dinothere Dinothere NNP 40404 5086 4 _ _ NNP 40404 5086 5 was be VBD 40404 5086 6 a a DT 40404 5086 7 curious curious JJ 40404 5086 8 offshoot offshoot NN 40404 5086 9 of of IN 40404 5086 10 the the DT 40404 5086 11 line line NN 40404 5086 12 , , , 40404 5086 13 which which WDT 40404 5086 14 developed develop VBD 40404 5086 15 in in IN 40404 5086 16 the the DT 40404 5086 17 Miocene Miocene NNP 40404 5086 18 in in IN 40404 5086 19 Europe Europe NNP 40404 5086 20 . . . 40404 5087 1 In in IN 40404 5087 2 this this DT 40404 5087 3 immense immense JJ 40404 5087 4 proboscidian proboscidian NN 40404 5087 5 , , , 40404 5087 6 whose whose WP$ 40404 5087 7 skull skull NN 40404 5087 8 was be VBD 40404 5087 9 three three CD 40404 5087 10 feet foot NNS 40404 5087 11 long long JJ 40404 5087 12 , , , 40404 5087 13 the the DT 40404 5087 14 upper upper JJ 40404 5087 15 pair pair NN 40404 5087 16 of of IN 40404 5087 17 tusks tusk NNS 40404 5087 18 had have VBD 40404 5087 19 disappeared disappear VBN 40404 5087 20 , , , 40404 5087 21 and and CC 40404 5087 22 those those DT 40404 5087 23 of of IN 40404 5087 24 the the DT 40404 5087 25 lower low JJR 40404 5087 26 jaw jaw NN 40404 5087 27 were be VBD 40404 5087 28 bent bend VBN 40404 5087 29 down down RP 40404 5087 30 with with IN 40404 5087 31 a a DT 40404 5087 32 backward backward JJ 40404 5087 33 curve curve NN 40404 5087 34 in in IN 40404 5087 35 walrus walrus NNP 40404 5087 36 fashion fashion NNP 40404 5087 37 . . . 40404 5088 1 [ [ -LRB- 40404 5088 2 Illustration illustration NN 40404 5088 3 : : : 40404 5088 4 Fig Fig NNP 40404 5088 5 . . . 40404 5089 1 348 348 CD 40404 5089 2 . . . 40404 5090 1 Crown Crown NNP 40404 5090 2 of of IN 40404 5090 3 Mastodon Mastodon NNP 40404 5090 4 Tooth Tooth NNP 40404 5090 5 ] ] -RRB- 40404 5090 6 In in IN 40404 5090 7 the the DT 40404 5090 8 true true JJ 40404 5090 9 _ _ NNP 40404 5090 10 elephants elephant NNS 40404 5090 11 _ _ NNP 40404 5090 12 , , , 40404 5090 13 which which WDT 40404 5090 14 do do VBP 40404 5090 15 not not RB 40404 5090 16 appear appear VB 40404 5090 17 until until IN 40404 5090 18 near near IN 40404 5090 19 the the DT 40404 5090 20 close close NN 40404 5090 21 of of IN 40404 5090 22 the the DT 40404 5090 23 Tertiary Tertiary NNP 40404 5090 24 , , , 40404 5090 25 the the DT 40404 5090 26 lower low JJR 40404 5090 27 jaw jaw NN 40404 5090 28 loses lose VBZ 40404 5090 29 its -PRON- PRP$ 40404 5090 30 tusks tusk NNS 40404 5090 31 and and CC 40404 5090 32 the the DT 40404 5090 33 grinding grind VBG 40404 5090 34 teeth tooth NNS 40404 5090 35 become become VBP 40404 5090 36 exceedingly exceedingly RB 40404 5090 37 complex complex JJ 40404 5090 38 in in IN 40404 5090 39 structure structure NN 40404 5090 40 . . . 40404 5091 1 The the DT 40404 5091 2 grinding grind VBG 40404 5091 3 teeth tooth NNS 40404 5091 4 of of IN 40404 5091 5 the the DT 40404 5091 6 mastodon mastodon NN 40404 5091 7 had have VBD 40404 5091 8 long long JJ 40404 5091 9 roots root NNS 40404 5091 10 and and CC 40404 5091 11 low low JJ 40404 5091 12 crowns crown NNS 40404 5091 13 crossed cross VBD 40404 5091 14 by by IN 40404 5091 15 four four CD 40404 5091 16 or or CC 40404 5091 17 five five CD 40404 5091 18 peaked peaked JJ 40404 5091 19 enameled enamel VBN 40404 5091 20 ridges ridge NNS 40404 5091 21 . . . 40404 5092 1 In in IN 40404 5092 2 the the DT 40404 5092 3 teeth tooth NNS 40404 5092 4 of of IN 40404 5092 5 the the DT 40404 5092 6 true true JJ 40404 5092 7 elephants elephant NNS 40404 5092 8 the the DT 40404 5092 9 crown crown NN 40404 5092 10 has have VBZ 40404 5092 11 become become VBN 40404 5092 12 deep deep JJ 40404 5092 13 , , , 40404 5092 14 and and CC 40404 5092 15 the the DT 40404 5092 16 ridges ridge NNS 40404 5092 17 of of IN 40404 5092 18 enamel enamel NNP 40404 5092 19 have have VBP 40404 5092 20 changed change VBN 40404 5092 21 to to IN 40404 5092 22 numerous numerous JJ 40404 5092 23 upright upright RB 40404 5092 24 , , , 40404 5092 25 platelike platelike IN 40404 5092 26 folds fold NNS 40404 5092 27 , , , 40404 5092 28 their -PRON- PRP$ 40404 5092 29 interspaces interspace NNS 40404 5092 30 filled fill VBN 40404 5092 31 with with IN 40404 5092 32 cement cement NN 40404 5092 33 . . . 40404 5093 1 The the DT 40404 5093 2 two two CD 40404 5093 3 genera genera NN 40404 5093 4 -- -- : 40404 5093 5 Mastodon Mastodon NNP 40404 5093 6 and and CC 40404 5093 7 Elephant Elephant NNP 40404 5093 8 -- -- : 40404 5093 9 are be VBP 40404 5093 10 connected connect VBN 40404 5093 11 by by IN 40404 5093 12 species specie NNS 40404 5093 13 whose whose WP$ 40404 5093 14 teeth tooth NNS 40404 5093 15 are be VBP 40404 5093 16 intermediate intermediate JJ 40404 5093 17 in in IN 40404 5093 18 pattern pattern NN 40404 5093 19 . . . 40404 5094 1 The the DT 40404 5094 2 proboscidians proboscidian NNS 40404 5094 3 culminated culminate VBD 40404 5094 4 in in IN 40404 5094 5 the the DT 40404 5094 6 Pliocene Pliocene NNP 40404 5094 7 , , , 40404 5094 8 when when WRB 40404 5094 9 some some DT 40404 5094 10 of of IN 40404 5094 11 the the DT 40404 5094 12 giant giant JJ 40404 5094 13 elephants elephant NNS 40404 5094 14 reached reach VBD 40404 5094 15 a a DT 40404 5094 16 height height NN 40404 5094 17 of of IN 40404 5094 18 fourteen fourteen CD 40404 5094 19 feet foot NNS 40404 5094 20 . . . 40404 5095 1 [ [ -LRB- 40404 5095 2 Illustration illustration NN 40404 5095 3 : : : 40404 5095 4 Fig Fig NNP 40404 5095 5 . . . 40404 5096 1 349 349 CD 40404 5096 2 . . . 40404 5097 1 Tooth Tooth NNP 40404 5097 2 of of IN 40404 5097 3 an an DT 40404 5097 4 Extinct Extinct NNP 40404 5097 5 Elephant Elephant NNP 40404 5097 6 , , , 40404 5097 7 the the DT 40404 5097 8 Mammoth Mammoth NNP 40404 5097 9 ] ] -RRB- 40404 5097 10 [ [ -LRB- 40404 5097 11 Illustration illustration NN 40404 5097 12 : : : 40404 5097 13 Fig Fig NNP 40404 5097 14 . . . 40404 5098 1 350 350 CD 40404 5098 2 . . . 40404 5099 1 Evolution evolution NN 40404 5099 2 of of IN 40404 5099 3 the the DT 40404 5099 4 Artiodactyl Artiodactyl NNP 40404 5099 5 Foot Foot NNP 40404 5099 6 , , , 40404 5099 7 Illustrated Illustrated NNP 40404 5099 8 by by IN 40404 5099 9 Existing exist VBG 40404 5099 10 Families Families NNPS 40404 5099 11 _ _ NNP 40404 5099 12 A A NNP 40404 5099 13 _ _ NNP 40404 5099 14 , , , 40404 5099 15 pig pig NN 40404 5099 16 ; ; : 40404 5099 17 _ _ NNP 40404 5099 18 B B NNP 40404 5099 19 _ _ NNP 40404 5099 20 , , , 40404 5099 21 roebuck roebuck NNP 40404 5099 22 ; ; : 40404 5099 23 _ _ NNP 40404 5099 24 C C NNP 40404 5099 25 _ _ NNP 40404 5099 26 , , , 40404 5099 27 sheep sheep NN 40404 5099 28 ; ; : 40404 5099 29 _ _ NNP 40404 5099 30 D D NNP 40404 5099 31 _ _ NNP 40404 5099 32 , , , 40404 5099 33 camel camel NN 40404 5099 34 ] ] -RRB- 40404 5099 35 = = NFP 40404 5099 36 The the DT 40404 5099 37 artiodactyls= artiodactyls= NN 40404 5099 38 comprise comprise NN 40404 5099 39 the the DT 40404 5099 40 hoofed hoofed JJ 40404 5099 41 Mammalia Mammalia NNP 40404 5099 42 which which WDT 40404 5099 43 have have VBP 40404 5099 44 an an DT 40404 5099 45 even even JJ 40404 5099 46 number number NN 40404 5099 47 of of IN 40404 5099 48 toes toe NNS 40404 5099 49 , , , 40404 5099 50 such such JJ 40404 5099 51 as as IN 40404 5099 52 cattle cattle NNS 40404 5099 53 , , , 40404 5099 54 sheep sheep NNS 40404 5099 55 , , , 40404 5099 56 and and CC 40404 5099 57 swine swine NNS 40404 5099 58 . . . 40404 5100 1 Like like IN 40404 5100 2 the the DT 40404 5100 3 perissodactyls perissodactyls NN 40404 5100 4 , , , 40404 5100 5 they -PRON- PRP 40404 5100 6 are be VBP 40404 5100 7 descended descend VBN 40404 5100 8 from from IN 40404 5100 9 the the DT 40404 5100 10 primitive primitive JJ 40404 5100 11 five five CD 40404 5100 12 - - HYPH 40404 5100 13 toed toed CD 40404 5100 14 plantigrade plantigrade NN 40404 5100 15 mammals mammal NNS 40404 5100 16 of of IN 40404 5100 17 the the DT 40404 5100 18 lowest low JJS 40404 5100 19 Eocene eocene NN 40404 5100 20 . . . 40404 5101 1 In in IN 40404 5101 2 their -PRON- PRP$ 40404 5101 3 evolution evolution NN 40404 5101 4 , , , 40404 5101 5 digit digit NN 40404 5101 6 number number NN 40404 5101 7 one one CD 40404 5101 8 was be VBD 40404 5101 9 first first RB 40404 5101 10 dropped drop VBN 40404 5101 11 , , , 40404 5101 12 and and CC 40404 5101 13 the the DT 40404 5101 14 middle middle JJ 40404 5101 15 pair pair NN 40404 5101 16 became become VBD 40404 5101 17 larger large JJR 40404 5101 18 and and CC 40404 5101 19 more more RBR 40404 5101 20 massive massive JJ 40404 5101 21 , , , 40404 5101 22 while while IN 40404 5101 23 the the DT 40404 5101 24 side side NN 40404 5101 25 digits digit VBZ 40404 5101 26 , , , 40404 5101 27 numbers number NNS 40404 5101 28 two two CD 40404 5101 29 and and CC 40404 5101 30 five five CD 40404 5101 31 , , , 40404 5101 32 became become VBD 40404 5101 33 shorter short JJR 40404 5101 34 , , , 40404 5101 35 weaker weak JJR 40404 5101 36 , , , 40404 5101 37 and and CC 40404 5101 38 less less RBR 40404 5101 39 serviceable serviceable JJ 40404 5101 40 . . . 40404 5102 1 The the DT 40404 5102 2 _ _ NNP 40404 5102 3 four four CD 40404 5102 4 - - HYPH 40404 5102 5 toed toed NN 40404 5102 6 artiodactyls artiodactyls NN 40404 5102 7 _ _ NNP 40404 5102 8 culminated culminate VBD 40404 5102 9 in in IN 40404 5102 10 the the DT 40404 5102 11 Tertiary Tertiary NNP 40404 5102 12 ; ; : 40404 5102 13 at at IN 40404 5102 14 present present NN 40404 5102 15 they -PRON- PRP 40404 5102 16 are be VBP 40404 5102 17 represented represent VBN 40404 5102 18 only only RB 40404 5102 19 by by IN 40404 5102 20 the the DT 40404 5102 21 hippopotamus hippopotamus NN 40404 5102 22 and and CC 40404 5102 23 the the DT 40404 5102 24 hog hog NN 40404 5102 25 . . . 40404 5103 1 Along along IN 40404 5103 2 the the DT 40404 5103 3 main main JJ 40404 5103 4 line line NN 40404 5103 5 of of IN 40404 5103 6 the the DT 40404 5103 7 evolution evolution NN 40404 5103 8 of of IN 40404 5103 9 the the DT 40404 5103 10 artiodactyls artiodactyls NN 40404 5103 11 the the DT 40404 5103 12 side side NN 40404 5103 13 toes toe NNS 40404 5103 14 , , , 40404 5103 15 digits digit VBZ 40404 5103 16 two two CD 40404 5103 17 and and CC 40404 5103 18 five five CD 40404 5103 19 , , , 40404 5103 20 disappeared disappear VBD 40404 5103 21 , , , 40404 5103 22 leaving leave VBG 40404 5103 23 as as IN 40404 5103 24 proof proof NN 40404 5103 25 that that IN 40404 5103 26 they -PRON- PRP 40404 5103 27 once once RB 40404 5103 28 existed exist VBD 40404 5103 29 the the DT 40404 5103 30 corresponding corresponding JJ 40404 5103 31 bones bone NNS 40404 5103 32 of of IN 40404 5103 33 palm palm NN 40404 5103 34 and and CC 40404 5103 35 sole sole NNP 40404 5103 36 as as IN 40404 5103 37 splints splint NNS 40404 5103 38 . . . 40404 5104 1 The the DT 40404 5104 2 _ _ NNP 40404 5104 3 two two CD 40404 5104 4 - - HYPH 40404 5104 5 toed toed NN 40404 5104 6 artiodactyls artiodactyls NN 40404 5104 7 _ _ NNP 40404 5104 8 , , , 40404 5104 9 such such JJ 40404 5104 10 as as IN 40404 5104 11 the the DT 40404 5104 12 camels camel NNS 40404 5104 13 , , , 40404 5104 14 deer deer NNS 40404 5104 15 , , , 40404 5104 16 cattle cattle NNS 40404 5104 17 , , , 40404 5104 18 and and CC 40404 5104 19 sheep sheep NNS 40404 5104 20 , , , 40404 5104 21 are be VBP 40404 5104 22 now now RB 40404 5104 23 the the DT 40404 5104 24 leading lead VBG 40404 5104 25 types type NNS 40404 5104 26 of of IN 40404 5104 27 the the DT 40404 5104 28 herbivores herbivore NNS 40404 5104 29 . . . 40404 5105 1 _ _ NNP 40404 5105 2 Swine Swine NNP 40404 5105 3 and and CC 40404 5105 4 peccaries peccary NNS 40404 5105 5 _ _ NNP 40404 5105 6 are be VBP 40404 5105 7 two two CD 40404 5105 8 branches branch NNS 40404 5105 9 of of IN 40404 5105 10 a a DT 40404 5105 11 common common JJ 40404 5105 12 stock stock NN 40404 5105 13 , , , 40404 5105 14 the the DT 40404 5105 15 first first JJ 40404 5105 16 developing developing NN 40404 5105 17 in in IN 40404 5105 18 the the DT 40404 5105 19 Old Old NNP 40404 5105 20 World World NNP 40404 5105 21 and and CC 40404 5105 22 the the DT 40404 5105 23 second second JJ 40404 5105 24 in in IN 40404 5105 25 the the DT 40404 5105 26 New New NNP 40404 5105 27 . . . 40404 5106 1 In in IN 40404 5106 2 the the DT 40404 5106 3 Miocene Miocene NNP 40404 5106 4 a a DT 40404 5106 5 noticeable noticeable JJ 40404 5106 6 offshoot offshoot NN 40404 5106 7 of of IN 40404 5106 8 the the DT 40404 5106 9 line line NN 40404 5106 10 was be VBD 40404 5106 11 a a DT 40404 5106 12 gigantic gigantic JJ 40404 5106 13 piglike piglike NN 40404 5106 14 brute brute NN 40404 5106 15 , , , 40404 5106 16 a a DT 40404 5106 17 root root NN 40404 5106 18 eater eater NN 40404 5106 19 , , , 40404 5106 20 with with IN 40404 5106 21 a a DT 40404 5106 22 skull skull NN 40404 5106 23 a a DT 40404 5106 24 yard yard NN 40404 5106 25 in in IN 40404 5106 26 length length NN 40404 5106 27 , , , 40404 5106 28 whose whose WP$ 40404 5106 29 remains remain NNS 40404 5106 30 are be VBP 40404 5106 31 now now RB 40404 5106 32 found find VBN 40404 5106 33 in in IN 40404 5106 34 Colorado Colorado NNP 40404 5106 35 and and CC 40404 5106 36 South South NNP 40404 5106 37 Dakota Dakota NNP 40404 5106 38 . . . 40404 5107 1 = = NFP 40404 5107 2 Camels Camels NNPS 40404 5107 3 and and CC 40404 5107 4 llamas.= llamas.= CD 40404 5107 5 The the DT 40404 5107 6 line line NN 40404 5107 7 of of IN 40404 5107 8 camels camel NNS 40404 5107 9 and and CC 40404 5107 10 llamas llama NNS 40404 5107 11 developed develop VBN 40404 5107 12 in in IN 40404 5107 13 North North NNP 40404 5107 14 America America NNP 40404 5107 15 , , , 40404 5107 16 where where WRB 40404 5107 17 the the DT 40404 5107 18 successive successive JJ 40404 5107 19 changes change NNS 40404 5107 20 from from IN 40404 5107 21 an an DT 40404 5107 22 early early JJ 40404 5107 23 Eocene Eocene NNP 40404 5107 24 ancestor ancestor NN 40404 5107 25 , , , 40404 5107 26 no no RB 40404 5107 27 larger large JJR 40404 5107 28 than than IN 40404 5107 29 a a DT 40404 5107 30 rabbit rabbit NN 40404 5107 31 , , , 40404 5107 32 are be VBP 40404 5107 33 traced trace VBN 40404 5107 34 step step NN 40404 5107 35 by by IN 40404 5107 36 step step NN 40404 5107 37 to to IN 40404 5107 38 the the DT 40404 5107 39 present present JJ 40404 5107 40 forms form NNS 40404 5107 41 , , , 40404 5107 42 as as RB 40404 5107 43 clearly clearly RB 40404 5107 44 as as IN 40404 5107 45 is be VBZ 40404 5107 46 the the DT 40404 5107 47 evolution evolution NN 40404 5107 48 of of IN 40404 5107 49 the the DT 40404 5107 50 horse horse NN 40404 5107 51 . . . 40404 5108 1 In in IN 40404 5108 2 the the DT 40404 5108 3 late late JJ 40404 5108 4 Miocene miocene NN 40404 5108 5 some some DT 40404 5108 6 of of IN 40404 5108 7 the the DT 40404 5108 8 ancestral ancestral JJ 40404 5108 9 forms form NNS 40404 5108 10 migrated migrate VBN 40404 5108 11 to to IN 40404 5108 12 the the DT 40404 5108 13 Old Old NNP 40404 5108 14 World World NNP 40404 5108 15 by by IN 40404 5108 16 way way NN 40404 5108 17 of of IN 40404 5108 18 a a DT 40404 5108 19 land land NN 40404 5108 20 connection connection NN 40404 5108 21 where where WRB 40404 5108 22 Bering Bering NNP 40404 5108 23 Strait Strait NNP 40404 5108 24 now now RB 40404 5108 25 is be VBZ 40404 5108 26 , , , 40404 5108 27 and and CC 40404 5108 28 there there EX 40404 5108 29 gave give VBD 40404 5108 30 rise rise NN 40404 5108 31 to to IN 40404 5108 32 the the DT 40404 5108 33 camels camel NNS 40404 5108 34 and and CC 40404 5108 35 dromedaries dromedary NNS 40404 5108 36 . . . 40404 5109 1 Others other NNS 40404 5109 2 migrated migrate VBN 40404 5109 3 into into IN 40404 5109 4 South South NNP 40404 5109 5 America America NNP 40404 5109 6 , , , 40404 5109 7 which which WDT 40404 5109 8 had have VBD 40404 5109 9 now now RB 40404 5109 10 been be VBN 40404 5109 11 connected connect VBN 40404 5109 12 with with IN 40404 5109 13 our -PRON- PRP$ 40404 5109 14 own own JJ 40404 5109 15 continent continent NN 40404 5109 16 , , , 40404 5109 17 and and CC 40404 5109 18 these these DT 40404 5109 19 developed develop VBD 40404 5109 20 into into IN 40404 5109 21 the the DT 40404 5109 22 llamas llama NNS 40404 5109 23 and and CC 40404 5109 24 guanacos guanacos NNP 40404 5109 25 , , , 40404 5109 26 while while IN 40404 5109 27 those those DT 40404 5109 28 of of IN 40404 5109 29 the the DT 40404 5109 30 race race NN 40404 5109 31 which which WDT 40404 5109 32 remained remain VBD 40404 5109 33 in in IN 40404 5109 34 North North NNP 40404 5109 35 America America NNP 40404 5109 36 became become VBD 40404 5109 37 extinct extinct JJ 40404 5109 38 during during IN 40404 5109 39 the the DT 40404 5109 40 Pleistocene Pleistocene NNP 40404 5109 41 . . . 40404 5110 1 Some some DT 40404 5110 2 peculiar peculiar JJ 40404 5110 3 branches branch NNS 40404 5110 4 of of IN 40404 5110 5 the the DT 40404 5110 6 camel camel NN 40404 5110 7 stem stem NN 40404 5110 8 appeared appear VBD 40404 5110 9 in in IN 40404 5110 10 North North NNP 40404 5110 11 America America NNP 40404 5110 12 . . . 40404 5111 1 In in IN 40404 5111 2 the the DT 40404 5111 3 Pliocene Pliocene NNP 40404 5111 4 arose arise VBD 40404 5111 5 a a DT 40404 5111 6 llama llama NN 40404 5111 7 with with IN 40404 5111 8 the the DT 40404 5111 9 long long JJ 40404 5111 10 neck neck NN 40404 5111 11 and and CC 40404 5111 12 limbs limb NNS 40404 5111 13 of of IN 40404 5111 14 a a DT 40404 5111 15 giraffe giraffe NN 40404 5111 16 , , , 40404 5111 17 whose whose WP$ 40404 5111 18 food food NN 40404 5111 19 was be VBD 40404 5111 20 cropped crop VBN 40404 5111 21 from from IN 40404 5111 22 the the DT 40404 5111 23 leaves leave NNS 40404 5111 24 and and CC 40404 5111 25 branches branch NNS 40404 5111 26 of of IN 40404 5111 27 trees tree NNS 40404 5111 28 . . . 40404 5112 1 Far far RB 40404 5112 2 more more RBR 40404 5112 3 generalized generalize VBN 40404 5112 4 in in IN 40404 5112 5 structure structure NN 40404 5112 6 was be VBD 40404 5112 7 the the DT 40404 5112 8 _ _ NNP 40404 5112 9 Oreodon Oreodon NNP 40404 5112 10 _ _ NNP 40404 5112 11 , , , 40404 5112 12 an an DT 40404 5112 13 animal animal NN 40404 5112 14 related relate VBN 40404 5112 15 to to IN 40404 5112 16 the the DT 40404 5112 17 camels camel NNS 40404 5112 18 , , , 40404 5112 19 but but CC 40404 5112 20 with with IN 40404 5112 21 distinct distinct JJ 40404 5112 22 affinities affinity NNS 40404 5112 23 also also RB 40404 5112 24 with with IN 40404 5112 25 other other JJ 40404 5112 26 lines line NNS 40404 5112 27 , , , 40404 5112 28 such such JJ 40404 5112 29 as as IN 40404 5112 30 those those DT 40404 5112 31 of of IN 40404 5112 32 the the DT 40404 5112 33 hog hog NN 40404 5112 34 and and CC 40404 5112 35 deer deer NN 40404 5112 36 . . . 40404 5113 1 These these DT 40404 5113 2 curious curious JJ 40404 5113 3 creatures creature NNS 40404 5113 4 were be VBD 40404 5113 5 much much RB 40404 5113 6 like like IN 40404 5113 7 the the DT 40404 5113 8 peccary peccary NN 40404 5113 9 in in IN 40404 5113 10 appearance appearance NN 40404 5113 11 , , , 40404 5113 12 except except IN 40404 5113 13 for for IN 40404 5113 14 their -PRON- PRP$ 40404 5113 15 long long JJ 40404 5113 16 tails tail NNS 40404 5113 17 . . . 40404 5114 1 In in IN 40404 5114 2 the the DT 40404 5114 3 middle middle JJ 40404 5114 4 Eocene Eocene NNP 40404 5114 5 they -PRON- PRP 40404 5114 6 roamed roam VBD 40404 5114 7 in in IN 40404 5114 8 vast vast JJ 40404 5114 9 herds herd NNS 40404 5114 10 from from IN 40404 5114 11 Oregon Oregon NNP 40404 5114 12 to to IN 40404 5114 13 Kansas Kansas NNP 40404 5114 14 and and CC 40404 5114 15 Nebraska Nebraska NNP 40404 5114 16 . . . 40404 5115 1 = = NFP 40404 5115 2 The the DT 40404 5115 3 ruminants.= ruminants.= NNS 40404 5115 4 This this DT 40404 5115 5 division division NN 40404 5115 6 of of IN 40404 5115 7 the the DT 40404 5115 8 artiodactyls artiodactyls NN 40404 5115 9 includes include VBZ 40404 5115 10 antelopes antelope NNS 40404 5115 11 , , , 40404 5115 12 deer deer NN 40404 5115 13 , , , 40404 5115 14 oxen oxen NNP 40404 5115 15 , , , 40404 5115 16 bison bison NN 40404 5115 17 , , , 40404 5115 18 sheep sheep NN 40404 5115 19 , , , 40404 5115 20 and and CC 40404 5115 21 goats,--all goats,--all NN 40404 5115 22 of of IN 40404 5115 23 which which WDT 40404 5115 24 belong belong VBP 40404 5115 25 to to IN 40404 5115 26 a a DT 40404 5115 27 common common JJ 40404 5115 28 stock stock NN 40404 5115 29 which which WDT 40404 5115 30 took take VBD 40404 5115 31 its -PRON- PRP$ 40404 5115 32 rise rise NN 40404 5115 33 in in IN 40404 5115 34 Europe Europe NNP 40404 5115 35 in in IN 40404 5115 36 the the DT 40404 5115 37 upper upper JJ 40404 5115 38 Eocene Eocene NNP 40404 5115 39 from from IN 40404 5115 40 ancestral ancestral JJ 40404 5115 41 forms form NNS 40404 5115 42 akin akin JJ 40404 5115 43 to to IN 40404 5115 44 those those DT 40404 5115 45 of of IN 40404 5115 46 the the DT 40404 5115 47 camels camel NNS 40404 5115 48 . . . 40404 5116 1 In in IN 40404 5116 2 the the DT 40404 5116 3 Miocene Miocene NNP 40404 5116 4 the the DT 40404 5116 5 evolution evolution NN 40404 5116 6 of of IN 40404 5116 7 the the DT 40404 5116 8 two two CD 40404 5116 9 - - HYPH 40404 5116 10 toed toed RB 40404 5116 11 artiodactyl artiodactyl NN 40404 5116 12 foot foot NN 40404 5116 13 was be VBD 40404 5116 14 well well NN 40404 5116 15 - - HYPH 40404 5116 16 nigh nigh NN 40404 5116 17 completed complete VBN 40404 5116 18 . . . 40404 5117 1 Bonelike bonelike JJ 40404 5117 2 growths growth NNS 40404 5117 3 appeared appear VBD 40404 5117 4 on on IN 40404 5117 5 the the DT 40404 5117 6 head head NN 40404 5117 7 , , , 40404 5117 8 and and CC 40404 5117 9 the the DT 40404 5117 10 two two CD 40404 5117 11 groups group NNS 40404 5117 12 of of IN 40404 5117 13 the the DT 40404 5117 14 ruminants ruminant NNS 40404 5117 15 became become VBD 40404 5117 16 specialized,--the specialized,--the PRP$ 40404 5117 17 deer deer NN 40404 5117 18 with with IN 40404 5117 19 bony bony NN 40404 5117 20 antlers antler NNS 40404 5117 21 , , , 40404 5117 22 shed shed VBD 40404 5117 23 and and CC 40404 5117 24 renewed renew VBN 40404 5117 25 each each DT 40404 5117 26 year year NN 40404 5117 27 , , , 40404 5117 28 and and CC 40404 5117 29 the the DT 40404 5117 30 ruminants ruminant NNS 40404 5117 31 with with IN 40404 5117 32 hollow hollow JJ 40404 5117 33 horns horn NNS 40404 5117 34 , , , 40404 5117 35 whose whose WP$ 40404 5117 36 two two CD 40404 5117 37 bony bony NN 40404 5117 38 knobs knob NNS 40404 5117 39 upon upon IN 40404 5117 40 the the DT 40404 5117 41 skull skull NN 40404 5117 42 are be VBP 40404 5117 43 covered cover VBN 40404 5117 44 with with IN 40404 5117 45 permanent permanent JJ 40404 5117 46 , , , 40404 5117 47 pointed pointed JJ 40404 5117 48 , , , 40404 5117 49 horny horny JJ 40404 5117 50 sheaths sheath NNS 40404 5117 51 . . . 40404 5118 1 The the DT 40404 5118 2 ruminants ruminant NNS 40404 5118 3 evolved evolve VBD 40404 5118 4 in in IN 40404 5118 5 the the DT 40404 5118 6 Old Old NNP 40404 5118 7 World World NNP 40404 5118 8 , , , 40404 5118 9 and and CC 40404 5118 10 it -PRON- PRP 40404 5118 11 was be VBD 40404 5118 12 not not RB 40404 5118 13 until until IN 40404 5118 14 the the DT 40404 5118 15 later later JJ 40404 5118 16 Miocene Miocene NNP 40404 5118 17 that that IN 40404 5118 18 the the DT 40404 5118 19 ancestors ancestor NNS 40404 5118 20 of of IN 40404 5118 21 the the DT 40404 5118 22 antelope antelope NNS 40404 5118 23 and and CC 40404 5118 24 of of IN 40404 5118 25 some some DT 40404 5118 26 deer deer NN 40404 5118 27 found find VBD 40404 5118 28 their -PRON- PRP$ 40404 5118 29 way way NN 40404 5118 30 to to IN 40404 5118 31 North North NNP 40404 5118 32 America America NNP 40404 5118 33 . . . 40404 5119 1 Mountain mountain NN 40404 5119 2 sheep sheep NNS 40404 5119 3 and and CC 40404 5119 4 goats goat NNS 40404 5119 5 , , , 40404 5119 6 the the DT 40404 5119 7 bison bison NN 40404 5119 8 and and CC 40404 5119 9 most most JJS 40404 5119 10 of of IN 40404 5119 11 the the DT 40404 5119 12 deer deer NN 40404 5119 13 , , , 40404 5119 14 did do VBD 40404 5119 15 not not RB 40404 5119 16 arrive arrive VB 40404 5119 17 until until IN 40404 5119 18 after after IN 40404 5119 19 the the DT 40404 5119 20 close close NN 40404 5119 21 of of IN 40404 5119 22 the the DT 40404 5119 23 Tertiary Tertiary NNP 40404 5119 24 , , , 40404 5119 25 and and CC 40404 5119 26 sheep sheep NN 40404 5119 27 and and CC 40404 5119 28 oxen oxen NN 40404 5119 29 were be VBD 40404 5119 30 introduced introduce VBN 40404 5119 31 by by IN 40404 5119 32 man man NN 40404 5119 33 . . . 40404 5120 1 The the DT 40404 5120 2 hoofed hoofed JJ 40404 5120 3 mammals mammal NNS 40404 5120 4 of of IN 40404 5120 5 the the DT 40404 5120 6 Tertiary Tertiary NNP 40404 5120 7 included include VBD 40404 5120 8 many many JJ 40404 5120 9 offshoots offshoot NNS 40404 5120 10 from from IN 40404 5120 11 the the DT 40404 5120 12 main main JJ 40404 5120 13 lines line NNS 40404 5120 14 which which WDT 40404 5120 15 we -PRON- PRP 40404 5120 16 have have VBP 40404 5120 17 traced trace VBN 40404 5120 18 . . . 40404 5121 1 Among among IN 40404 5121 2 them -PRON- PRP 40404 5121 3 were be VBD 40404 5121 4 a a DT 40404 5121 5 number number NN 40404 5121 6 of of IN 40404 5121 7 genera genera NN 40404 5121 8 of of IN 40404 5121 9 clumsy clumsy JJ 40404 5121 10 , , , 40404 5121 11 ponderous ponderous JJ 40404 5121 12 brutes brute NNS 40404 5121 13 , , , 40404 5121 14 some some DT 40404 5121 15 almost almost RB 40404 5121 16 elephantine elephantine VBP 40404 5121 17 in in IN 40404 5121 18 their -PRON- PRP$ 40404 5121 19 bulk bulk NN 40404 5121 20 . . . 40404 5122 1 = = NFP 40404 5122 2 The the DT 40404 5122 3 carnivores.= carnivores.= CD 40404 5122 4 The the DT 40404 5122 5 ancestral ancestral JJ 40404 5122 6 lines line NNS 40404 5122 7 of of IN 40404 5122 8 the the DT 40404 5122 9 families family NNS 40404 5122 10 of of IN 40404 5122 11 the the DT 40404 5122 12 flesh flesh NN 40404 5122 13 eaters eater NNS 40404 5122 14 -- -- : 40404 5122 15 such such JJ 40404 5122 16 as as IN 40404 5122 17 the the DT 40404 5122 18 cats cat NNS 40404 5122 19 ( ( -LRB- 40404 5122 20 lions lion NNS 40404 5122 21 , , , 40404 5122 22 tigers tiger NNS 40404 5122 23 , , , 40404 5122 24 etc etc FW 40404 5122 25 . . . 40404 5123 1 ) ) -RRB- 40404 5123 2 , , , 40404 5123 3 the the DT 40404 5123 4 bears bear NNS 40404 5123 5 , , , 40404 5123 6 the the DT 40404 5123 7 hyenas hyenas NNPS 40404 5123 8 , , , 40404 5123 9 and and CC 40404 5123 10 the the DT 40404 5123 11 dogs dog NNS 40404 5123 12 ( ( -LRB- 40404 5123 13 including include VBG 40404 5123 14 wolves wolf NNS 40404 5123 15 and and CC 40404 5123 16 foxes)--converge foxes)--converge NNP 40404 5123 17 in in IN 40404 5123 18 the the DT 40404 5123 19 creodonts creodont NNS 40404 5123 20 of of IN 40404 5123 21 the the DT 40404 5123 22 early early JJ 40404 5123 23 Eocene,--an Eocene,--an NNS 40404 5123 24 order order NN 40404 5123 25 so so RB 40404 5123 26 generalized generalize VBD 40404 5123 27 that that IN 40404 5123 28 it -PRON- PRP 40404 5123 29 had have VBD 40404 5123 30 affinities affinity NNS 40404 5123 31 not not RB 40404 5123 32 only only RB 40404 5123 33 with with IN 40404 5123 34 the the DT 40404 5123 35 carnivores carnivore NNS 40404 5123 36 but but CC 40404 5123 37 also also RB 40404 5123 38 with with IN 40404 5123 39 the the DT 40404 5123 40 insect insect JJ 40404 5123 41 eaters eater NNS 40404 5123 42 , , , 40404 5123 43 the the DT 40404 5123 44 marsupials marsupial NNS 40404 5123 45 , , , 40404 5123 46 and and CC 40404 5123 47 the the DT 40404 5123 48 hoofed hoofed NNP 40404 5123 49 mammals mammal NNS 40404 5123 50 as as RB 40404 5123 51 well well RB 40404 5123 52 . . . 40404 5124 1 From from IN 40404 5124 2 these these DT 40404 5124 3 primitive primitive JJ 40404 5124 4 flesh flesh NN 40404 5124 5 eaters eater NNS 40404 5124 6 , , , 40404 5124 7 with with IN 40404 5124 8 small small JJ 40404 5124 9 and and CC 40404 5124 10 simple simple JJ 40404 5124 11 brains brain NNS 40404 5124 12 , , , 40404 5124 13 numerous numerous JJ 40404 5124 14 small small JJ 40404 5124 15 teeth tooth NNS 40404 5124 16 , , , 40404 5124 17 and and CC 40404 5124 18 plantigrade plantigrade NN 40404 5124 19 tread tread NN 40404 5124 20 , , , 40404 5124 21 the the DT 40404 5124 22 different different JJ 40404 5124 23 families family NNS 40404 5124 24 of of IN 40404 5124 25 the the DT 40404 5124 26 carnivores carnivore NNS 40404 5124 27 of of IN 40404 5124 28 the the DT 40404 5124 29 present present NN 40404 5124 30 have have VBP 40404 5124 31 slowly slowly RB 40404 5124 32 evolved evolve VBN 40404 5124 33 . . . 40404 5125 1 = = NFP 40404 5125 2 Dogs Dogs NNP 40404 5125 3 and and CC 40404 5125 4 bears.= bears.= NNP 40404 5125 5 The the DT 40404 5125 6 dog dog NN 40404 5125 7 family family NN 40404 5125 8 diverged diverge VBD 40404 5125 9 from from IN 40404 5125 10 the the DT 40404 5125 11 creodonts creodont NNS 40404 5125 12 late late RB 40404 5125 13 in in IN 40404 5125 14 the the DT 40404 5125 15 Eocene Eocene NNP 40404 5125 16 , , , 40404 5125 17 and and CC 40404 5125 18 divided divide VBN 40404 5125 19 into into IN 40404 5125 20 two two CD 40404 5125 21 branches branch NNS 40404 5125 22 , , , 40404 5125 23 one one CD 40404 5125 24 of of IN 40404 5125 25 which which WDT 40404 5125 26 evolved evolve VBD 40404 5125 27 the the DT 40404 5125 28 wolves wolf NNS 40404 5125 29 and and CC 40404 5125 30 the the DT 40404 5125 31 other other JJ 40404 5125 32 the the DT 40404 5125 33 foxes fox NNS 40404 5125 34 . . . 40404 5126 1 An an DT 40404 5126 2 offshoot offshoot NN 40404 5126 3 gave give VBD 40404 5126 4 rise rise NN 40404 5126 5 to to IN 40404 5126 6 the the DT 40404 5126 7 family family NN 40404 5126 8 of of IN 40404 5126 9 the the DT 40404 5126 10 bears bear NNS 40404 5126 11 , , , 40404 5126 12 and and CC 40404 5126 13 so so RB 40404 5126 14 closely closely RB 40404 5126 15 do do VBP 40404 5126 16 these these DT 40404 5126 17 two two CD 40404 5126 18 families family NNS 40404 5126 19 , , , 40404 5126 20 now now RB 40404 5126 21 wide wide RB 40404 5126 22 apart apart RB 40404 5126 23 , , , 40404 5126 24 approach approach NN 40404 5126 25 as as IN 40404 5126 26 we -PRON- PRP 40404 5126 27 trace trace VBP 40404 5126 28 them -PRON- PRP 40404 5126 29 back back RB 40404 5126 30 in in IN 40404 5126 31 Tertiary Tertiary NNP 40404 5126 32 times time NNS 40404 5126 33 that that IN 40404 5126 34 the the DT 40404 5126 35 Amphicyon Amphicyon NNP 40404 5126 36 , , , 40404 5126 37 a a DT 40404 5126 38 genus genus JJ 40404 5126 39 doglike doglike NN 40404 5126 40 in in IN 40404 5126 41 its -PRON- PRP$ 40404 5126 42 teeth tooth NNS 40404 5126 43 and and CC 40404 5126 44 bearlike bearlike NN 40404 5126 45 in in IN 40404 5126 46 other other JJ 40404 5126 47 structures structure NNS 40404 5126 48 , , , 40404 5126 49 is be VBZ 40404 5126 50 referred refer VBN 40404 5126 51 by by IN 40404 5126 52 some some DT 40404 5126 53 to to IN 40404 5126 54 the the DT 40404 5126 55 dog dog NN 40404 5126 56 and and CC 40404 5126 57 by by IN 40404 5126 58 others other NNS 40404 5126 59 to to IN 40404 5126 60 the the DT 40404 5126 61 bear bear NN 40404 5126 62 family family NN 40404 5126 63 . . . 40404 5127 1 The the DT 40404 5127 2 well well RB 40404 5127 3 - - HYPH 40404 5127 4 known know VBN 40404 5127 5 plantigrade plantigrade NN 40404 5127 6 tread tread NN 40404 5127 7 of of IN 40404 5127 8 bears bear NNS 40404 5127 9 is be VBZ 40404 5127 10 a a DT 40404 5127 11 primitive primitive JJ 40404 5127 12 characteristic characteristic NN 40404 5127 13 which which WDT 40404 5127 14 has have VBZ 40404 5127 15 survived survive VBN 40404 5127 16 from from IN 40404 5127 17 their -PRON- PRP$ 40404 5127 18 creodont creodont NN 40404 5127 19 ancestry ancestry NN 40404 5127 20 . . . 40404 5128 1 = = NFP 40404 5128 2 Cats.= Cats.= NNP 40404 5128 3 The the DT 40404 5128 4 family family NN 40404 5128 5 of of IN 40404 5128 6 the the DT 40404 5128 7 cats cat NNS 40404 5128 8 , , , 40404 5128 9 the the DT 40404 5128 10 most most RBS 40404 5128 11 highly highly RB 40404 5128 12 specialized specialized JJ 40404 5128 13 of of IN 40404 5128 14 all all PDT 40404 5128 15 the the DT 40404 5128 16 carnivores carnivore NNS 40404 5128 17 , , , 40404 5128 18 divided divide VBN 40404 5128 19 in in IN 40404 5128 20 the the DT 40404 5128 21 Tertiary Tertiary NNP 40404 5128 22 into into IN 40404 5128 23 two two CD 40404 5128 24 main main JJ 40404 5128 25 branches branch NNS 40404 5128 26 . . . 40404 5129 1 One one CD 40404 5129 2 , , , 40404 5129 3 the the DT 40404 5129 4 saber saber NNP 40404 5129 5 - - HYPH 40404 5129 6 tooth tooth NN 40404 5129 7 tigers tiger NNS 40404 5129 8 ( ( -LRB- 40404 5129 9 Fig fig NN 40404 5129 10 . . . 40404 5130 1 351 351 CD 40404 5130 2 ) ) -RRB- 40404 5130 3 , , , 40404 5130 4 which which WDT 40404 5130 5 takes take VBZ 40404 5130 6 its -PRON- PRP$ 40404 5130 7 name name NN 40404 5130 8 from from IN 40404 5130 9 their -PRON- PRP$ 40404 5130 10 long long JJ 40404 5130 11 , , , 40404 5130 12 saberlike saberlike JJ 40404 5130 13 , , , 40404 5130 14 sharp sharp RB 40404 5130 15 - - HYPH 40404 5130 16 edged edged JJ 40404 5130 17 upper upper JJ 40404 5130 18 canine canine NN 40404 5130 19 teeth tooth NNS 40404 5130 20 , , , 40404 5130 21 evolved evolve VBD 40404 5130 22 a a DT 40404 5130 23 succession succession NN 40404 5130 24 of of IN 40404 5130 25 genera genera NN 40404 5130 26 and and CC 40404 5130 27 species specie NNS 40404 5130 28 , , , 40404 5130 29 among among IN 40404 5130 30 them -PRON- PRP 40404 5130 31 some some DT 40404 5130 32 of of IN 40404 5130 33 the the DT 40404 5130 34 most most RBS 40404 5130 35 destructive destructive JJ 40404 5130 36 beasts beast NNS 40404 5130 37 of of IN 40404 5130 38 prey prey NN 40404 5130 39 which which WDT 40404 5130 40 ever ever RB 40404 5130 41 scourged scourge VBD 40404 5130 42 the the DT 40404 5130 43 earth earth NN 40404 5130 44 . . . 40404 5131 1 They -PRON- PRP 40404 5131 2 were be VBD 40404 5131 3 masters master NNS 40404 5131 4 of of IN 40404 5131 5 the the DT 40404 5131 6 entire entire JJ 40404 5131 7 northern northern JJ 40404 5131 8 hemisphere hemisphere NN 40404 5131 9 during during IN 40404 5131 10 the the DT 40404 5131 11 middle middle JJ 40404 5131 12 Tertiary Tertiary NNP 40404 5131 13 , , , 40404 5131 14 but but CC 40404 5131 15 in in IN 40404 5131 16 Europe Europe NNP 40404 5131 17 during during IN 40404 5131 18 the the DT 40404 5131 19 Pliocene Pliocene NNP 40404 5131 20 they -PRON- PRP 40404 5131 21 declined decline VBD 40404 5131 22 , , , 40404 5131 23 from from IN 40404 5131 24 unknown unknown JJ 40404 5131 25 causes cause NNS 40404 5131 26 , , , 40404 5131 27 and and CC 40404 5131 28 gave give VBD 40404 5131 29 place place NN 40404 5131 30 to to IN 40404 5131 31 the the DT 40404 5131 32 other other JJ 40404 5131 33 branch branch NN 40404 5131 34 of of IN 40404 5131 35 cats,--which cats,--which NNP 40404 5131 36 includes include VBZ 40404 5131 37 the the DT 40404 5131 38 lions lion NNS 40404 5131 39 , , , 40404 5131 40 tigers tiger NNS 40404 5131 41 , , , 40404 5131 42 and and CC 40404 5131 43 leopards leopard NNS 40404 5131 44 . . . 40404 5132 1 In in IN 40404 5132 2 the the DT 40404 5132 3 Americas Americas NNPS 40404 5132 4 the the DT 40404 5132 5 saber saber NNP 40404 5132 6 - - HYPH 40404 5132 7 tooth tooth NN 40404 5132 8 tigers tiger NNS 40404 5132 9 long long RB 40404 5132 10 survived survive VBD 40404 5132 11 the the DT 40404 5132 12 epoch epoch NN 40404 5132 13 . . . 40404 5133 1 [ [ -LRB- 40404 5133 2 Illustration illustration NN 40404 5133 3 : : : 40404 5133 4 Fig Fig NNP 40404 5133 5 . . . 40404 5134 1 351 351 CD 40404 5134 2 . . . 40404 5135 1 Saber Saber NNP 40404 5135 2 - - HYPH 40404 5135 3 Tooth Tooth NNP 40404 5135 4 Tiger Tiger NNP 40404 5135 5 ] ] -RRB- 40404 5135 6 = = NFP 40404 5135 7 Marine Marine NNP 40404 5135 8 mammals.= mammals.= CD 40404 5135 9 The the DT 40404 5135 10 carnivorous carnivorous JJ 40404 5135 11 mammals mammal NNS 40404 5135 12 of of IN 40404 5135 13 the the DT 40404 5135 14 sea sea NN 40404 5135 15 -- -- : 40404 5135 16 whales whale NNS 40404 5135 17 , , , 40404 5135 18 seals seal NNS 40404 5135 19 , , , 40404 5135 20 walruses walrus NNS 40404 5135 21 , , , 40404 5135 22 etc.--seem etc.--seem NNP 40404 5135 23 to to TO 40404 5135 24 have have VB 40404 5135 25 been be VBN 40404 5135 26 derived derive VBN 40404 5135 27 from from IN 40404 5135 28 some some DT 40404 5135 29 of of IN 40404 5135 30 the the DT 40404 5135 31 creodonts creodont NNS 40404 5135 32 of of IN 40404 5135 33 the the DT 40404 5135 34 early early JJ 40404 5135 35 Tertiary Tertiary NNP 40404 5135 36 by by IN 40404 5135 37 adaptation adaptation NN 40404 5135 38 to to IN 40404 5135 39 aquatic aquatic JJ 40404 5135 40 life life NN 40404 5135 41 . . . 40404 5136 1 Whales whale NNS 40404 5136 2 evolved evolve VBD 40404 5136 3 from from IN 40404 5136 4 some some DT 40404 5136 5 land land NN 40404 5136 6 ancestry ancestry NN 40404 5136 7 at at IN 40404 5136 8 a a DT 40404 5136 9 very very RB 40404 5136 10 early early JJ 40404 5136 11 date date NN 40404 5136 12 in in IN 40404 5136 13 the the DT 40404 5136 14 Tertiary Tertiary NNP 40404 5136 15 ; ; : 40404 5136 16 in in IN 40404 5136 17 the the DT 40404 5136 18 marine marine JJ 40404 5136 19 deposits deposit NNS 40404 5136 20 of of IN 40404 5136 21 the the DT 40404 5136 22 Eocene Eocene NNP 40404 5136 23 are be VBP 40404 5136 24 found find VBN 40404 5136 25 the the DT 40404 5136 26 bones bone NNS 40404 5136 27 of of IN 40404 5136 28 the the DT 40404 5136 29 Zeuglodon Zeuglodon NNP 40404 5136 30 , , , 40404 5136 31 a a DT 40404 5136 32 whalelike whalelike JJ 40404 5136 33 creature creature NN 40404 5136 34 seventy seventy CD 40404 5136 35 feet foot NNS 40404 5136 36 in in IN 40404 5136 37 length length NN 40404 5136 38 . . . 40404 5137 1 = = NFP 40404 5137 2 Primates.= primates.= NN 40404 5137 3 This this DT 40404 5137 4 order order NN 40404 5137 5 , , , 40404 5137 6 which which WDT 40404 5137 7 includes include VBZ 40404 5137 8 lemurs lemur NNS 40404 5137 9 , , , 40404 5137 10 monkeys monkey NNS 40404 5137 11 , , , 40404 5137 12 apes ape NNS 40404 5137 13 , , , 40404 5137 14 and and CC 40404 5137 15 man man NN 40404 5137 16 , , , 40404 5137 17 seems seem VBZ 40404 5137 18 to to TO 40404 5137 19 have have VB 40404 5137 20 sprung spring VBN 40404 5137 21 from from IN 40404 5137 22 a a DT 40404 5137 23 creodont creodont NN 40404 5137 24 or or CC 40404 5137 25 insectivorous insectivorous JJ 40404 5137 26 ancestry ancestry NN 40404 5137 27 in in IN 40404 5137 28 the the DT 40404 5137 29 lower low JJR 40404 5137 30 Eocene Eocene NNP 40404 5137 31 . . . 40404 5138 1 Lemur lemur NN 40404 5138 2 - - HYPH 40404 5138 3 like like JJ 40404 5138 4 types type NNS 40404 5138 5 , , , 40404 5138 6 with with IN 40404 5138 7 small small JJ 40404 5138 8 , , , 40404 5138 9 smooth smooth JJ 40404 5138 10 brains brain NNS 40404 5138 11 , , , 40404 5138 12 were be VBD 40404 5138 13 abundant abundant JJ 40404 5138 14 in in IN 40404 5138 15 the the DT 40404 5138 16 United United NNP 40404 5138 17 States States NNP 40404 5138 18 in in IN 40404 5138 19 the the DT 40404 5138 20 early early JJ 40404 5138 21 Tertiary Tertiary NNP 40404 5138 22 , , , 40404 5138 23 but but CC 40404 5138 24 no no DT 40404 5138 25 primates primate NNS 40404 5138 26 have have VBP 40404 5138 27 been be VBN 40404 5138 28 found find VBN 40404 5138 29 here here RB 40404 5138 30 in in IN 40404 5138 31 the the DT 40404 5138 32 middle middle JJ 40404 5138 33 Tertiary Tertiary NNP 40404 5138 34 and and CC 40404 5138 35 later later JJ 40404 5138 36 strata strata NN 40404 5138 37 . . . 40404 5139 1 In in IN 40404 5139 2 Europe Europe NNP 40404 5139 3 true true JJ 40404 5139 4 monkeys monkey NNS 40404 5139 5 were be VBD 40404 5139 6 introduced introduce VBN 40404 5139 7 in in IN 40404 5139 8 the the DT 40404 5139 9 Miocene Miocene NNP 40404 5139 10 , , , 40404 5139 11 and and CC 40404 5139 12 were be VBD 40404 5139 13 abundant abundant JJ 40404 5139 14 until until IN 40404 5139 15 the the DT 40404 5139 16 close close NN 40404 5139 17 of of IN 40404 5139 18 the the DT 40404 5139 19 Tertiary Tertiary NNP 40404 5139 20 , , , 40404 5139 21 when when WRB 40404 5139 22 they -PRON- PRP 40404 5139 23 were be VBD 40404 5139 24 driven drive VBN 40404 5139 25 from from IN 40404 5139 26 the the DT 40404 5139 27 continent continent NN 40404 5139 28 by by IN 40404 5139 29 the the DT 40404 5139 30 increasing increase VBG 40404 5139 31 cold cold NN 40404 5139 32 . . . 40404 5140 1 = = NFP 40404 5140 2 Advance advance NN 40404 5140 3 of of IN 40404 5140 4 the the DT 40404 5140 5 mammalia mammalia NN 40404 5140 6 during during IN 40404 5140 7 the the DT 40404 5140 8 tertiary.= tertiary.= NN 40404 5140 9 During during IN 40404 5140 10 the the DT 40404 5140 11 several several JJ 40404 5140 12 millions million NNS 40404 5140 13 of of IN 40404 5140 14 years year NNS 40404 5140 15 comprised comprise VBN 40404 5140 16 in in IN 40404 5140 17 Tertiary tertiary JJ 40404 5140 18 time time NN 40404 5140 19 the the DT 40404 5140 20 mammals mammal NNS 40404 5140 21 evolved evolve VBN 40404 5140 22 from from IN 40404 5140 23 the the DT 40404 5140 24 lowly lowly JJ 40404 5140 25 , , , 40404 5140 26 simple simple JJ 40404 5140 27 types type NNS 40404 5140 28 which which WDT 40404 5140 29 tenanted tenant VBD 40404 5140 30 the the DT 40404 5140 31 earth earth NN 40404 5140 32 at at IN 40404 5140 33 the the DT 40404 5140 34 beginning beginning NN 40404 5140 35 of of IN 40404 5140 36 the the DT 40404 5140 37 period period NN 40404 5140 38 , , , 40404 5140 39 into into IN 40404 5140 40 the the DT 40404 5140 41 many many JJ 40404 5140 42 kinds kind NNS 40404 5140 43 of of IN 40404 5140 44 highly highly RB 40404 5140 45 specialized specialized JJ 40404 5140 46 mammals mammal NNS 40404 5140 47 of of IN 40404 5140 48 the the DT 40404 5140 49 Pleistocene Pleistocene NNP 40404 5140 50 and and CC 40404 5140 51 the the DT 40404 5140 52 present present NN 40404 5140 53 , , , 40404 5140 54 each each DT 40404 5140 55 with with IN 40404 5140 56 the the DT 40404 5140 57 various various JJ 40404 5140 58 structures structure NNS 40404 5140 59 of of IN 40404 5140 60 the the DT 40404 5140 61 body body NN 40404 5140 62 adapted adapt VBN 40404 5140 63 to to IN 40404 5140 64 its -PRON- PRP$ 40404 5140 65 own own JJ 40404 5140 66 peculiar peculiar JJ 40404 5140 67 mode mode NN 40404 5140 68 of of IN 40404 5140 69 life life NN 40404 5140 70 . . . 40404 5141 1 The the DT 40404 5141 2 swift swift JJ 40404 5141 3 feet foot NNS 40404 5141 4 of of IN 40404 5141 5 the the DT 40404 5141 6 horse horse NN 40404 5141 7 , , , 40404 5141 8 the the DT 40404 5141 9 horns horn NNS 40404 5141 10 of of IN 40404 5141 11 cattle cattle NNS 40404 5141 12 and and CC 40404 5141 13 the the DT 40404 5141 14 antlers antler NNS 40404 5141 15 of of IN 40404 5141 16 the the DT 40404 5141 17 deer deer NN 40404 5141 18 , , , 40404 5141 19 the the DT 40404 5141 20 lion lion NN 40404 5141 21 's 's POS 40404 5141 22 claws claws NN 40404 5141 23 and and CC 40404 5141 24 teeth tooth NNS 40404 5141 25 , , , 40404 5141 26 the the DT 40404 5141 27 long long JJ 40404 5141 28 incisors incisor NNS 40404 5141 29 of of IN 40404 5141 30 the the DT 40404 5141 31 beaver beaver NN 40404 5141 32 , , , 40404 5141 33 the the DT 40404 5141 34 proboscis probosci NNS 40404 5141 35 of of IN 40404 5141 36 the the DT 40404 5141 37 elephant elephant NN 40404 5141 38 , , , 40404 5141 39 were be VBD 40404 5141 40 all all DT 40404 5141 41 developed develop VBN 40404 5141 42 in in IN 40404 5141 43 Tertiary Tertiary NNP 40404 5141 44 times time NNS 40404 5141 45 . . . 40404 5142 1 In in IN 40404 5142 2 especial especial JJ 40404 5142 3 the the DT 40404 5142 4 brain brain NN 40404 5142 5 of of IN 40404 5142 6 the the DT 40404 5142 7 Tertiary tertiary JJ 40404 5142 8 mammals mammal NNS 40404 5142 9 constantly constantly RB 40404 5142 10 grew grow VBD 40404 5142 11 larger large JJR 40404 5142 12 relatively relatively RB 40404 5142 13 to to IN 40404 5142 14 the the DT 40404 5142 15 size size NN 40404 5142 16 of of IN 40404 5142 17 body body NN 40404 5142 18 , , , 40404 5142 19 and and CC 40404 5142 20 the the DT 40404 5142 21 higher high JJR 40404 5142 22 portion portion NN 40404 5142 23 of of IN 40404 5142 24 the the DT 40404 5142 25 brain brain NN 40404 5142 26 -- -- : 40404 5142 27 the the DT 40404 5142 28 cerebral cerebral JJ 40404 5142 29 lobes lobe NNS 40404 5142 30 -- -- : 40404 5142 31 increased increase VBN 40404 5142 32 in in IN 40404 5142 33 size size NN 40404 5142 34 in in IN 40404 5142 35 comparison comparison NN 40404 5142 36 with with IN 40404 5142 37 the the DT 40404 5142 38 cerebellum cerebellum NN 40404 5142 39 . . . 40404 5143 1 Some some DT 40404 5143 2 of of IN 40404 5143 3 the the DT 40404 5143 4 hoofed hoofed NNP 40404 5143 5 mammals mammal NNS 40404 5143 6 now now RB 40404 5143 7 have have VBP 40404 5143 8 a a DT 40404 5143 9 brain brain NN 40404 5143 10 eight eight CD 40404 5143 11 or or CC 40404 5143 12 ten ten CD 40404 5143 13 times time NNS 40404 5143 14 the the DT 40404 5143 15 size size NN 40404 5143 16 of of IN 40404 5143 17 that that DT 40404 5143 18 of of IN 40404 5143 19 their -PRON- PRP$ 40404 5143 20 early early JJ 40404 5143 21 Tertiary tertiary JJ 40404 5143 22 predecessors predecessor NNS 40404 5143 23 of of IN 40404 5143 24 equal equal JJ 40404 5143 25 bulk bulk NN 40404 5143 26 . . . 40404 5144 1 Nor nor CC 40404 5144 2 can can MD 40404 5144 3 we -PRON- PRP 40404 5144 4 doubt doubt VB 40404 5144 5 that that IN 40404 5144 6 along along IN 40404 5144 7 with with IN 40404 5144 8 the the DT 40404 5144 9 increasing increase VBG 40404 5144 10 size size NN 40404 5144 11 of of IN 40404 5144 12 brain brain NN 40404 5144 13 went go VBD 40404 5144 14 a a DT 40404 5144 15 corresponding corresponding JJ 40404 5144 16 increase increase NN 40404 5144 17 in in IN 40404 5144 18 the the DT 40404 5144 19 keenness keenness NN 40404 5144 20 of of IN 40404 5144 21 the the DT 40404 5144 22 senses sense NNS 40404 5144 23 , , , 40404 5144 24 in in IN 40404 5144 25 activity activity NN 40404 5144 26 and and CC 40404 5144 27 vigor vigor NN 40404 5144 28 , , , 40404 5144 29 and and CC 40404 5144 30 in in IN 40404 5144 31 intelligence intelligence NN 40404 5144 32 . . . 40404 5145 1 CHAPTER chapter NN 40404 5145 2 XXII xxii NN 40404 5145 3 THE the DT 40404 5145 4 QUATERNARY quaternary NN 40404 5145 5 The the DT 40404 5145 6 last last JJ 40404 5145 7 period period NN 40404 5145 8 of of IN 40404 5145 9 geological geological JJ 40404 5145 10 history history NN 40404 5145 11 , , , 40404 5145 12 the the DT 40404 5145 13 Quaternary Quaternary NNP 40404 5145 14 , , , 40404 5145 15 may may MD 40404 5145 16 be be VB 40404 5145 17 said say VBN 40404 5145 18 to to TO 40404 5145 19 have have VB 40404 5145 20 begun begin VBN 40404 5145 21 when when WRB 40404 5145 22 all all DT 40404 5145 23 , , , 40404 5145 24 or or CC 40404 5145 25 nearly nearly RB 40404 5145 26 all all DT 40404 5145 27 , , , 40404 5145 28 living live VBG 40404 5145 29 species specie NNS 40404 5145 30 of of IN 40404 5145 31 mollusks mollusk NNS 40404 5145 32 and and CC 40404 5145 33 most most JJS 40404 5145 34 of of IN 40404 5145 35 the the DT 40404 5145 36 existing exist VBG 40404 5145 37 mammals mammal NNS 40404 5145 38 had have VBD 40404 5145 39 appeared appear VBN 40404 5145 40 . . . 40404 5146 1 It -PRON- PRP 40404 5146 2 is be VBZ 40404 5146 3 divided divide VBN 40404 5146 4 into into IN 40404 5146 5 two two CD 40404 5146 6 great great JJ 40404 5146 7 epochs epoch NNS 40404 5146 8 . . . 40404 5147 1 The the DT 40404 5147 2 first first JJ 40404 5147 3 , , , 40404 5147 4 the the DT 40404 5147 5 _ _ NNP 40404 5147 6 Pleistocene Pleistocene NNP 40404 5147 7 _ _ NNP 40404 5147 8 or or CC 40404 5147 9 _ _ NNP 40404 5147 10 Glacial Glacial NNP 40404 5147 11 epoch epoch NNP 40404 5147 12 _ _ NNP 40404 5147 13 , , , 40404 5147 14 is be VBZ 40404 5147 15 marked mark VBN 40404 5147 16 off off RP 40404 5147 17 from from IN 40404 5147 18 the the DT 40404 5147 19 Tertiary Tertiary NNP 40404 5147 20 by by IN 40404 5147 21 the the DT 40404 5147 22 occupation occupation NN 40404 5147 23 of of IN 40404 5147 24 the the DT 40404 5147 25 northern northern JJ 40404 5147 26 parts part NNS 40404 5147 27 of of IN 40404 5147 28 North North NNP 40404 5147 29 America America NNP 40404 5147 30 and and CC 40404 5147 31 Europe Europe NNP 40404 5147 32 by by IN 40404 5147 33 vast vast JJ 40404 5147 34 ice ice NN 40404 5147 35 sheets sheet NNS 40404 5147 36 ; ; : 40404 5147 37 the the DT 40404 5147 38 second second JJ 40404 5147 39 , , , 40404 5147 40 the the DT 40404 5147 41 _ _ NNP 40404 5147 42 Recent Recent NNP 40404 5147 43 epoch epoch NN 40404 5147 44 _ _ NNP 40404 5147 45 , , , 40404 5147 46 began begin VBD 40404 5147 47 with with IN 40404 5147 48 the the DT 40404 5147 49 disappearance disappearance NN 40404 5147 50 of of IN 40404 5147 51 the the DT 40404 5147 52 ice ice NN 40404 5147 53 sheets sheet NNS 40404 5147 54 from from IN 40404 5147 55 these these DT 40404 5147 56 continents continent NNS 40404 5147 57 , , , 40404 5147 58 and and CC 40404 5147 59 merges merge NNS 40404 5147 60 into into IN 40404 5147 61 the the DT 40404 5147 62 present present JJ 40404 5147 63 time time NN 40404 5147 64 . . . 40404 5148 1 The the DT 40404 5148 2 Pleistocene Pleistocene NNP 40404 5148 3 Epoch Epoch NNP 40404 5148 4 We -PRON- PRP 40404 5148 5 now now RB 40404 5148 6 come come VBP 40404 5148 7 to to IN 40404 5148 8 an an DT 40404 5148 9 episode episode NN 40404 5148 10 of of IN 40404 5148 11 unusual unusual JJ 40404 5148 12 interest interest NN 40404 5148 13 , , , 40404 5148 14 so so RB 40404 5148 15 different different JJ 40404 5148 16 was be VBD 40404 5148 17 it -PRON- PRP 40404 5148 18 from from IN 40404 5148 19 most most JJS 40404 5148 20 of of IN 40404 5148 21 the the DT 40404 5148 22 preceding precede VBG 40404 5148 23 epochs epoch NNS 40404 5148 24 and and CC 40404 5148 25 from from IN 40404 5148 26 the the DT 40404 5148 27 present present NN 40404 5148 28 , , , 40404 5148 29 and and CC 40404 5148 30 so so RB 40404 5148 31 largely largely RB 40404 5148 32 has have VBZ 40404 5148 33 it -PRON- PRP 40404 5148 34 influenced influence VBN 40404 5148 35 the the DT 40404 5148 36 conditions condition NNS 40404 5148 37 of of IN 40404 5148 38 man man NN 40404 5148 39 's 's POS 40404 5148 40 life life NN 40404 5148 41 . . . 40404 5149 1 The the DT 40404 5149 2 records record NNS 40404 5149 3 of of IN 40404 5149 4 the the DT 40404 5149 5 Glacial Glacial NNP 40404 5149 6 epoch epoch NN 40404 5149 7 are be VBP 40404 5149 8 so so RB 40404 5149 9 plain plain JJ 40404 5149 10 and and CC 40404 5149 11 full full JJ 40404 5149 12 that that IN 40404 5149 13 we -PRON- PRP 40404 5149 14 are be VBP 40404 5149 15 compelled compel VBN 40404 5149 16 to to TO 40404 5149 17 believe believe VB 40404 5149 18 what what WP 40404 5149 19 otherwise otherwise RB 40404 5149 20 would would MD 40404 5149 21 seem seem VB 40404 5149 22 almost almost RB 40404 5149 23 incredible,--that incredible,--that IN 40404 5149 24 following follow VBG 40404 5149 25 the the DT 40404 5149 26 mild mild JJ 40404 5149 27 climate climate NN 40404 5149 28 of of IN 40404 5149 29 the the DT 40404 5149 30 Tertiary Tertiary NNP 40404 5149 31 came come VBD 40404 5149 32 a a DT 40404 5149 33 succession succession NN 40404 5149 34 of of IN 40404 5149 35 ages age NNS 40404 5149 36 when when WRB 40404 5149 37 ice ice NN 40404 5149 38 fields field NNS 40404 5149 39 , , , 40404 5149 40 like like IN 40404 5149 41 that that DT 40404 5149 42 of of IN 40404 5149 43 Greenland Greenland NNP 40404 5149 44 , , , 40404 5149 45 shrouded shroud VBD 40404 5149 46 the the DT 40404 5149 47 northern northern JJ 40404 5149 48 parts part NNS 40404 5149 49 of of IN 40404 5149 50 North North NNP 40404 5149 51 America America NNP 40404 5149 52 and and CC 40404 5149 53 Europe Europe NNP 40404 5149 54 and and CC 40404 5149 55 extended extend VBD 40404 5149 56 far far RB 40404 5149 57 into into IN 40404 5149 58 temperate temperate NN 40404 5149 59 latitudes latitude NNS 40404 5149 60 . . . 40404 5150 1 = = NFP 40404 5150 2 The the DT 40404 5150 3 drift.= drift.= NNS 40404 5150 4 Our -PRON- PRP$ 40404 5150 5 studies study NNS 40404 5150 6 of of IN 40404 5150 7 glaciers glacier NNS 40404 5150 8 have have VBP 40404 5150 9 prepared prepare VBN 40404 5150 10 us -PRON- PRP 40404 5150 11 to to IN 40404 5150 12 decipher decipher VB 40404 5150 13 and and CC 40404 5150 14 interpret interpret VB 40404 5150 15 the the DT 40404 5150 16 history history NN 40404 5150 17 of of IN 40404 5150 18 the the DT 40404 5150 19 Glacial Glacial NNP 40404 5150 20 epoch epoch NN 40404 5150 21 , , , 40404 5150 22 as as IN 40404 5150 23 it -PRON- PRP 40404 5150 24 is be VBZ 40404 5150 25 recorded record VBN 40404 5150 26 in in IN 40404 5150 27 the the DT 40404 5150 28 surface surface NN 40404 5150 29 deposits deposit NNS 40404 5150 30 known know VBN 40404 5150 31 as as IN 40404 5150 32 the the DT 40404 5150 33 drift drift NN 40404 5150 34 . . . 40404 5151 1 Over over IN 40404 5151 2 most most JJS 40404 5151 3 of of IN 40404 5151 4 Canada Canada NNP 40404 5151 5 and and CC 40404 5151 6 the the DT 40404 5151 7 northern northern JJ 40404 5151 8 states state NNS 40404 5151 9 this this DT 40404 5151 10 familiar familiar JJ 40404 5151 11 formation formation NN 40404 5151 12 is be VBZ 40404 5151 13 exposed expose VBN 40404 5151 14 to to TO 40404 5151 15 view view VB 40404 5151 16 in in IN 40404 5151 17 nearly nearly RB 40404 5151 18 all all DT 40404 5151 19 cuttings cutting NNS 40404 5151 20 which which WDT 40404 5151 21 pass pass VBP 40404 5151 22 below below IN 40404 5151 23 the the DT 40404 5151 24 surface surface NN 40404 5151 25 soil soil NN 40404 5151 26 . . . 40404 5152 1 The the DT 40404 5152 2 drift drift NN 40404 5152 3 includes include VBZ 40404 5152 4 two two CD 40404 5152 5 distinct distinct JJ 40404 5152 6 classes class NNS 40404 5152 7 of of IN 40404 5152 8 deposits,--the deposits,--the DT 40404 5152 9 unstratified unstratified JJ 40404 5152 10 drift drift NN 40404 5152 11 laid lay VBD 40404 5152 12 down down RP 40404 5152 13 by by IN 40404 5152 14 glacier glacier NNP 40404 5152 15 ice ice NN 40404 5152 16 , , , 40404 5152 17 and and CC 40404 5152 18 the the DT 40404 5152 19 stratified stratify VBN 40404 5152 20 drift drift NN 40404 5152 21 spread spread VBN 40404 5152 22 by by IN 40404 5152 23 glacier glacier NN 40404 5152 24 waters water NNS 40404 5152 25 . . . 40404 5153 1 The the DT 40404 5153 2 materials material NNS 40404 5153 3 of of IN 40404 5153 4 the the DT 40404 5153 5 drift drift NN 40404 5153 6 are be VBP 40404 5153 7 in in IN 40404 5153 8 any any DT 40404 5153 9 given give VBN 40404 5153 10 place place NN 40404 5153 11 in in IN 40404 5153 12 part part NN 40404 5153 13 unlike unlike IN 40404 5153 14 the the DT 40404 5153 15 rock rock NN 40404 5153 16 on on IN 40404 5153 17 which which WDT 40404 5153 18 it -PRON- PRP 40404 5153 19 rests rest VBZ 40404 5153 20 . . . 40404 5154 1 They -PRON- PRP 40404 5154 2 can can MD 40404 5154 3 not not RB 40404 5154 4 be be VB 40404 5154 5 derived derive VBN 40404 5154 6 from from IN 40404 5154 7 the the DT 40404 5154 8 underlying underlie VBG 40404 5154 9 rock rock NN 40404 5154 10 by by IN 40404 5154 11 weathering weather VBG 40404 5154 12 , , , 40404 5154 13 but but CC 40404 5154 14 have have VBP 40404 5154 15 been be VBN 40404 5154 16 brought bring VBN 40404 5154 17 from from IN 40404 5154 18 elsewhere elsewhere RB 40404 5154 19 . . . 40404 5155 1 Thus thus RB 40404 5155 2 where where WRB 40404 5155 3 a a DT 40404 5155 4 region region NN 40404 5155 5 is be VBZ 40404 5155 6 underlain underlain JJ 40404 5155 7 by by IN 40404 5155 8 sedimentary sedimentary JJ 40404 5155 9 rocks rock NNS 40404 5155 10 , , , 40404 5155 11 as as IN 40404 5155 12 is be VBZ 40404 5155 13 the the DT 40404 5155 14 drift drift NN 40404 5155 15 - - HYPH 40404 5155 16 covered cover VBN 40404 5155 17 area area NN 40404 5155 18 from from IN 40404 5155 19 the the DT 40404 5155 20 Hudson Hudson NNP 40404 5155 21 River River NNP 40404 5155 22 to to IN 40404 5155 23 the the DT 40404 5155 24 Missouri Missouri NNP 40404 5155 25 , , , 40404 5155 26 the the DT 40404 5155 27 drift drift NN 40404 5155 28 contains contain VBZ 40404 5155 29 not not RB 40404 5155 30 only only RB 40404 5155 31 fragments fragment NNS 40404 5155 32 of of IN 40404 5155 33 limestone limestone NN 40404 5155 34 , , , 40404 5155 35 sandstone sandstone NN 40404 5155 36 , , , 40404 5155 37 and and CC 40404 5155 38 shale shale NN 40404 5155 39 of of IN 40404 5155 40 local local JJ 40404 5155 41 derivation derivation NN 40404 5155 42 , , , 40404 5155 43 but but CC 40404 5155 44 also also RB 40404 5155 45 pebbles pebble NNS 40404 5155 46 of of IN 40404 5155 47 many many JJ 40404 5155 48 igneous igneous JJ 40404 5155 49 and and CC 40404 5155 50 metamorphic metamorphic JJ 40404 5155 51 rocks rock NNS 40404 5155 52 , , , 40404 5155 53 such such JJ 40404 5155 54 as as IN 40404 5155 55 granites granite NNS 40404 5155 56 , , , 40404 5155 57 gneisses gneiss NNS 40404 5155 58 , , , 40404 5155 59 schists schist NNS 40404 5155 60 , , , 40404 5155 61 dike dike NN 40404 5155 62 rocks rock NNS 40404 5155 63 , , , 40404 5155 64 quartzites quartzite NNS 40404 5155 65 , , , 40404 5155 66 and and CC 40404 5155 67 the the DT 40404 5155 68 quartz quartz NN 40404 5155 69 of of IN 40404 5155 70 mineral mineral NN 40404 5155 71 veins vein NNS 40404 5155 72 , , , 40404 5155 73 whose whose WP$ 40404 5155 74 nearest near JJS 40404 5155 75 source source NN 40404 5155 76 is be VBZ 40404 5155 77 the the DT 40404 5155 78 Archean Archean NNP 40404 5155 79 area area NN 40404 5155 80 of of IN 40404 5155 81 Canada Canada NNP 40404 5155 82 and and CC 40404 5155 83 the the DT 40404 5155 84 states state NNS 40404 5155 85 of of IN 40404 5155 86 our -PRON- PRP$ 40404 5155 87 northern northern JJ 40404 5155 88 border border NN 40404 5155 89 . . . 40404 5156 1 The the DT 40404 5156 2 drift drift NN 40404 5156 3 received receive VBD 40404 5156 4 its -PRON- PRP$ 40404 5156 5 name name NN 40404 5156 6 when when WRB 40404 5156 7 it -PRON- PRP 40404 5156 8 was be VBD 40404 5156 9 supposed suppose VBN 40404 5156 10 that that IN 40404 5156 11 the the DT 40404 5156 12 formation formation NN 40404 5156 13 had have VBD 40404 5156 14 been be VBN 40404 5156 15 drifted drift VBN 40404 5156 16 by by IN 40404 5156 17 floods flood NNS 40404 5156 18 and and CC 40404 5156 19 icebergs iceberg NNS 40404 5156 20 from from IN 40404 5156 21 outside outside IN 40404 5156 22 sources,--a sources,--a NNP 40404 5156 23 theory theory NN 40404 5156 24 long long RB 40404 5156 25 since since IN 40404 5156 26 abandoned abandon VBN 40404 5156 27 . . . 40404 5157 1 [ [ -LRB- 40404 5157 2 Illustration illustration NN 40404 5157 3 : : : 40404 5157 4 Fig Fig NNP 40404 5157 5 . . . 40404 5158 1 352 352 CD 40404 5158 2 . . . 40404 5159 1 Stratified Stratified NNP 40404 5159 2 Drift Drift NNP 40404 5159 3 overlaying overlay VBG 40404 5159 4 Unstratified Unstratified NNP 40404 5159 5 Drift Drift NNP 40404 5159 6 , , , 40404 5159 7 Massachusetts Massachusetts NNP 40404 5159 8 ] ] -RRB- 40404 5159 9 The the DT 40404 5159 10 distribution distribution NN 40404 5159 11 also also RB 40404 5159 12 of of IN 40404 5159 13 the the DT 40404 5159 14 drift drift NN 40404 5159 15 points point NNS 40404 5159 16 clearly clearly RB 40404 5159 17 to to IN 40404 5159 18 its -PRON- PRP$ 40404 5159 19 peculiar peculiar JJ 40404 5159 20 origin origin NN 40404 5159 21 . . . 40404 5160 1 Within within IN 40404 5160 2 the the DT 40404 5160 3 limits limit NNS 40404 5160 4 of of IN 40404 5160 5 the the DT 40404 5160 6 glaciated glaciated JJ 40404 5160 7 area area NN 40404 5160 8 it -PRON- PRP 40404 5160 9 covers cover VBZ 40404 5160 10 the the DT 40404 5160 11 country country NN 40404 5160 12 without without IN 40404 5160 13 regard regard NN 40404 5160 14 to to IN 40404 5160 15 the the DT 40404 5160 16 relief relief NN 40404 5160 17 , , , 40404 5160 18 mantling mantle VBG 40404 5160 19 with with IN 40404 5160 20 its -PRON- PRP$ 40404 5160 21 debris debris NN 40404 5160 22 not not RB 40404 5160 23 only only RB 40404 5160 24 lowlands lowland NNS 40404 5160 25 and and CC 40404 5160 26 valleys valley NNS 40404 5160 27 but but CC 40404 5160 28 also also RB 40404 5160 29 highlands highland NNS 40404 5160 30 and and CC 40404 5160 31 mountain mountain NN 40404 5160 32 slopes slope NNS 40404 5160 33 . . . 40404 5161 1 The the DT 40404 5161 2 boundary boundary NN 40404 5161 3 of of IN 40404 5161 4 the the DT 40404 5161 5 drift drift NN 40404 5161 6 is be VBZ 40404 5161 7 equally equally RB 40404 5161 8 independent independent JJ 40404 5161 9 of of IN 40404 5161 10 the the DT 40404 5161 11 relief relief NN 40404 5161 12 of of IN 40404 5161 13 the the DT 40404 5161 14 land land NN 40404 5161 15 , , , 40404 5161 16 crossing crossing NNP 40404 5161 17 hills hills NNPS 40404 5161 18 and and CC 40404 5161 19 plains plain VBZ 40404 5161 20 impartially impartially RB 40404 5161 21 , , , 40404 5161 22 unlike unlike IN 40404 5161 23 water water NN 40404 5161 24 - - HYPH 40404 5161 25 laid lay VBN 40404 5161 26 deposits deposit NNS 40404 5161 27 , , , 40404 5161 28 whose whose WP$ 40404 5161 29 margins margin NNS 40404 5161 30 , , , 40404 5161 31 unless unless IN 40404 5161 32 subsequently subsequently RB 40404 5161 33 deformed deform VBN 40404 5161 34 , , , 40404 5161 35 are be VBP 40404 5161 36 horizontal horizontal JJ 40404 5161 37 . . . 40404 5162 1 The the DT 40404 5162 2 boundary boundary NN 40404 5162 3 of of IN 40404 5162 4 the the DT 40404 5162 5 drift drift NN 40404 5162 6 is be VBZ 40404 5162 7 strikingly strikingly RB 40404 5162 8 lobate lobate JJ 40404 5162 9 also also RB 40404 5162 10 , , , 40404 5162 11 bending bend VBG 40404 5162 12 outward outward RB 40404 5162 13 in in IN 40404 5162 14 broad broad JJ 40404 5162 15 , , , 40404 5162 16 convex convex NNP 40404 5162 17 curves curve NNS 40404 5162 18 , , , 40404 5162 19 where where WRB 40404 5162 20 there there EX 40404 5162 21 are be VBP 40404 5162 22 no no DT 40404 5162 23 natural natural JJ 40404 5162 24 barriers barrier NNS 40404 5162 25 in in IN 40404 5162 26 the the DT 40404 5162 27 topography topography NN 40404 5162 28 of of IN 40404 5162 29 the the DT 40404 5162 30 country country NN 40404 5162 31 to to TO 40404 5162 32 set set VB 40404 5162 33 it -PRON- PRP 40404 5162 34 such such PDT 40404 5162 35 a a DT 40404 5162 36 limit limit NN 40404 5162 37 . . . 40404 5163 1 Under under IN 40404 5163 2 these these DT 40404 5163 3 conditions condition NNS 40404 5163 4 such such PDT 40404 5163 5 a a DT 40404 5163 6 lobate lobate JJ 40404 5163 7 margin margin NN 40404 5163 8 can can MD 40404 5163 9 not not RB 40404 5163 10 belong belong VB 40404 5163 11 to to IN 40404 5163 12 deposits deposit NNS 40404 5163 13 of of IN 40404 5163 14 rivers river NNS 40404 5163 15 , , , 40404 5163 16 lakes lake NNS 40404 5163 17 , , , 40404 5163 18 or or CC 40404 5163 19 ocean ocean NN 40404 5163 20 , , , 40404 5163 21 but but CC 40404 5163 22 is be VBZ 40404 5163 23 precisely precisely RB 40404 5163 24 that that IN 40404 5163 25 which which WDT 40404 5163 26 would would MD 40404 5163 27 mark mark VB 40404 5163 28 the the DT 40404 5163 29 edge edge NN 40404 5163 30 of of IN 40404 5163 31 a a DT 40404 5163 32 continental continental JJ 40404 5163 33 glacier glacier NN 40404 5163 34 which which WDT 40404 5163 35 deployed deploy VBD 40404 5163 36 in in IN 40404 5163 37 broad broad JJ 40404 5163 38 tongues tongue NNS 40404 5163 39 of of IN 40404 5163 40 ice ice NN 40404 5163 41 . . . 40404 5164 1 = = NFP 40404 5164 2 The the DT 40404 5164 3 rock rock NN 40404 5164 4 surface surface NN 40404 5164 5 underlying underlie VBG 40404 5164 6 the the DT 40404 5164 7 drift.= drift.= NNS 40404 5164 8 Over over IN 40404 5164 9 much much JJ 40404 5164 10 of of IN 40404 5164 11 its -PRON- PRP$ 40404 5164 12 area area NN 40404 5164 13 the the DT 40404 5164 14 drift drift NN 40404 5164 15 rests rest VBZ 40404 5164 16 on on IN 40404 5164 17 firm firm JJ 40404 5164 18 , , , 40404 5164 19 fresh fresh JJ 40404 5164 20 rock rock NN 40404 5164 21 , , , 40404 5164 22 showing show VBG 40404 5164 23 that that IN 40404 5164 24 both both CC 40404 5164 25 the the DT 40404 5164 26 preglacial preglacial JJ 40404 5164 27 mantle mantle NNP 40404 5164 28 of of IN 40404 5164 29 residual residual JJ 40404 5164 30 waste waste NN 40404 5164 31 and and CC 40404 5164 32 the the DT 40404 5164 33 partially partially RB 40404 5164 34 decomposed decompose VBN 40404 5164 35 and and CC 40404 5164 36 broken broken JJ 40404 5164 37 rock rock NN 40404 5164 38 beneath beneath IN 40404 5164 39 it -PRON- PRP 40404 5164 40 have have VBP 40404 5164 41 been be VBN 40404 5164 42 swept sweep VBN 40404 5164 43 away away RB 40404 5164 44 . . . 40404 5165 1 The the DT 40404 5165 2 underlying underlie VBG 40404 5165 3 rock rock NN 40404 5165 4 , , , 40404 5165 5 especially especially RB 40404 5165 6 if if IN 40404 5165 7 massive massive JJ 40404 5165 8 , , , 40404 5165 9 hard hard JJ 40404 5165 10 , , , 40404 5165 11 and and CC 40404 5165 12 of of IN 40404 5165 13 a a DT 40404 5165 14 fine fine JJ 40404 5165 15 grain grain NN 40404 5165 16 , , , 40404 5165 17 has have VBZ 40404 5165 18 often often RB 40404 5165 19 been be VBN 40404 5165 20 ground grind VBN 40404 5165 21 down down RP 40404 5165 22 to to IN 40404 5165 23 a a DT 40404 5165 24 smooth smooth JJ 40404 5165 25 surface surface NN 40404 5165 26 and and CC 40404 5165 27 rubbed rub VBD 40404 5165 28 to to IN 40404 5165 29 a a DT 40404 5165 30 polish polish NN 40404 5165 31 as as RB 40404 5165 32 perfect perfect JJ 40404 5165 33 as as IN 40404 5165 34 that that DT 40404 5165 35 seen see VBN 40404 5165 36 on on IN 40404 5165 37 the the DT 40404 5165 38 rock rock NN 40404 5165 39 beside beside IN 40404 5165 40 an an DT 40404 5165 41 Alpine Alpine NNP 40404 5165 42 glacier glacier NN 40404 5165 43 where where WRB 40404 5165 44 the the DT 40404 5165 45 ice ice NN 40404 5165 46 has have VBZ 40404 5165 47 recently recently RB 40404 5165 48 melted melt VBN 40404 5165 49 back back RB 40404 5165 50 . . . 40404 5166 1 Frequently frequently RB 40404 5166 2 it -PRON- PRP 40404 5166 3 has have VBZ 40404 5166 4 been be VBN 40404 5166 5 worn wear VBN 40404 5166 6 to to IN 40404 5166 7 the the DT 40404 5166 8 smooth smooth JJ 40404 5166 9 , , , 40404 5166 10 rounded rounded JJ 40404 5166 11 hummocks hummock NNS 40404 5166 12 known know VBN 40404 5166 13 as as IN 40404 5166 14 roches roche NNS 40404 5166 15 moutonnées moutonnées IN 40404 5166 16 , , , 40404 5166 17 and and CC 40404 5166 18 even even RB 40404 5166 19 rocky rocky JJ 40404 5166 20 hills hill NNS 40404 5166 21 have have VBP 40404 5166 22 been be VBN 40404 5166 23 thus thus RB 40404 5166 24 smoothed smooth VBN 40404 5166 25 to to IN 40404 5166 26 flowing flow VBG 40404 5166 27 outlines outline NNS 40404 5166 28 like like IN 40404 5166 29 roches roche NNS 40404 5166 30 moutonnées moutonnées IN 40404 5166 31 on on IN 40404 5166 32 a a DT 40404 5166 33 gigantic gigantic JJ 40404 5166 34 scale scale NN 40404 5166 35 . . . 40404 5167 1 The the DT 40404 5167 2 rock rock NN 40404 5167 3 pavement pavement NN 40404 5167 4 beneath beneath IN 40404 5167 5 the the DT 40404 5167 6 drift drift NN 40404 5167 7 is be VBZ 40404 5167 8 also also RB 40404 5167 9 marked mark VBN 40404 5167 10 by by IN 40404 5167 11 long long JJ 40404 5167 12 , , , 40404 5167 13 straight straight JJ 40404 5167 14 , , , 40404 5167 15 parallel parallel JJ 40404 5167 16 scorings scoring NNS 40404 5167 17 , , , 40404 5167 18 varying vary VBG 40404 5167 19 in in IN 40404 5167 20 size size NN 40404 5167 21 from from IN 40404 5167 22 deep deep JJ 40404 5167 23 grooves groove NNS 40404 5167 24 to to IN 40404 5167 25 fine fine JJ 40404 5167 26 striae striae NN 40404 5167 27 as as RB 40404 5167 28 delicate delicate JJ 40404 5167 29 as as IN 40404 5167 30 the the DT 40404 5167 31 hair hair NN 40404 5167 32 lines line NNS 40404 5167 33 cut cut VBN 40404 5167 34 by by IN 40404 5167 35 an an DT 40404 5167 36 engraver engraver NN 40404 5167 37 's 's POS 40404 5167 38 needle needle NN 40404 5167 39 . . . 40404 5168 1 Where where WRB 40404 5168 2 the the DT 40404 5168 3 rock rock NN 40404 5168 4 is be VBZ 40404 5168 5 soft soft JJ 40404 5168 6 or or CC 40404 5168 7 closely closely RB 40404 5168 8 jointed joint VBN 40404 5168 9 it -PRON- PRP 40404 5168 10 is be VBZ 40404 5168 11 often often RB 40404 5168 12 shattered shatter VBN 40404 5168 13 to to IN 40404 5168 14 a a DT 40404 5168 15 depth depth NN 40404 5168 16 of of IN 40404 5168 17 several several JJ 40404 5168 18 feet foot NNS 40404 5168 19 beneath beneath IN 40404 5168 20 the the DT 40404 5168 21 drift drift NN 40404 5168 22 , , , 40404 5168 23 while while IN 40404 5168 24 stony stony NNP 40404 5168 25 clay clay NNP 40404 5168 26 has have VBZ 40404 5168 27 been be VBN 40404 5168 28 thrust thrust VBN 40404 5168 29 in in IN 40404 5168 30 among among IN 40404 5168 31 the the DT 40404 5168 32 fragments fragment NNS 40404 5168 33 into into IN 40404 5168 34 which which WDT 40404 5168 35 the the DT 40404 5168 36 rock rock NN 40404 5168 37 is be VBZ 40404 5168 38 broken break VBN 40404 5168 39 . . . 40404 5169 1 In in IN 40404 5169 2 the the DT 40404 5169 3 presence presence NN 40404 5169 4 of of IN 40404 5169 5 these these DT 40404 5169 6 glaciated glaciate VBN 40404 5169 7 surfaces surface NNS 40404 5169 8 we -PRON- PRP 40404 5169 9 can can MD 40404 5169 10 not not RB 40404 5169 11 doubt doubt VB 40404 5169 12 that that IN 40404 5169 13 the the DT 40404 5169 14 area area NN 40404 5169 15 of of IN 40404 5169 16 the the DT 40404 5169 17 drift drift NN 40404 5169 18 has have VBZ 40404 5169 19 been be VBN 40404 5169 20 overridden override VBN 40404 5169 21 by by IN 40404 5169 22 vast vast JJ 40404 5169 23 sheets sheet NNS 40404 5169 24 of of IN 40404 5169 25 ice ice NN 40404 5169 26 which which WDT 40404 5169 27 , , , 40404 5169 28 in in IN 40404 5169 29 their -PRON- PRP$ 40404 5169 30 steady steady JJ 40404 5169 31 flow flow NN 40404 5169 32 , , , 40404 5169 33 rasped rasp VBN 40404 5169 34 and and CC 40404 5169 35 scored score VBD 40404 5169 36 the the DT 40404 5169 37 rock rock NN 40404 5169 38 bed bed NN 40404 5169 39 beneath beneath RB 40404 5169 40 by by IN 40404 5169 41 means mean NNS 40404 5169 42 of of IN 40404 5169 43 the the DT 40404 5169 44 stones stone NNS 40404 5169 45 with with IN 40404 5169 46 which which WDT 40404 5169 47 their -PRON- PRP$ 40404 5169 48 basal basal NN 40404 5169 49 layers layer NNS 40404 5169 50 were be VBD 40404 5169 51 inset inset JJ 40404 5169 52 , , , 40404 5169 53 and and CC 40404 5169 54 in in IN 40404 5169 55 places place NNS 40404 5169 56 plucked pluck VBN 40404 5169 57 and and CC 40404 5169 58 shattered shatter VBD 40404 5169 59 it -PRON- PRP 40404 5169 60 . . . 40404 5170 1 = = NFP 40404 5170 2 Till.= Till.= . 40404 5170 3 The the DT 40404 5170 4 unstratified unstratified JJ 40404 5170 5 portion portion NN 40404 5170 6 of of IN 40404 5170 7 the the DT 40404 5170 8 drift drift NN 40404 5170 9 consists consist VBZ 40404 5170 10 chiefly chiefly RB 40404 5170 11 of of IN 40404 5170 12 sheets sheet NNS 40404 5170 13 of of IN 40404 5170 14 dense dense JJ 40404 5170 15 , , , 40404 5170 16 stony stony NNP 40404 5170 17 clay clay NNP 40404 5170 18 called call VBN 40404 5170 19 till till IN 40404 5170 20 , , , 40404 5170 21 which which WDT 40404 5170 22 clearly clearly RB 40404 5170 23 are be VBP 40404 5170 24 the the DT 40404 5170 25 ground ground NN 40404 5170 26 moraines moraine NNS 40404 5170 27 of of IN 40404 5170 28 ancient ancient JJ 40404 5170 29 continental continental JJ 40404 5170 30 glaciers glacier NNS 40404 5170 31 . . . 40404 5171 1 Till till IN 40404 5171 2 is be VBZ 40404 5171 3 an an DT 40404 5171 4 unsorted unsorted JJ 40404 5171 5 mixture mixture NN 40404 5171 6 of of IN 40404 5171 7 materials material NNS 40404 5171 8 of of IN 40404 5171 9 all all DT 40404 5171 10 sizes size NNS 40404 5171 11 , , , 40404 5171 12 from from IN 40404 5171 13 fine fine JJ 40404 5171 14 clay clay NN 40404 5171 15 and and CC 40404 5171 16 sand sand NN 40404 5171 17 , , , 40404 5171 18 gravel gravel NN 40404 5171 19 , , , 40404 5171 20 pebbles pebble NNS 40404 5171 21 , , , 40404 5171 22 and and CC 40404 5171 23 cobblestones cobblestone NNS 40404 5171 24 , , , 40404 5171 25 to to IN 40404 5171 26 large large JJ 40404 5171 27 bowlders bowlder NNS 40404 5171 28 . . . 40404 5172 1 The the DT 40404 5172 2 stones stone NNS 40404 5172 3 of of IN 40404 5172 4 the the DT 40404 5172 5 till till NN 40404 5172 6 are be VBP 40404 5172 7 of of IN 40404 5172 8 many many JJ 40404 5172 9 kinds kind NNS 40404 5172 10 , , , 40404 5172 11 some some DT 40404 5172 12 having have VBG 40404 5172 13 been be VBN 40404 5172 14 plucked pluck VBN 40404 5172 15 from from IN 40404 5172 16 the the DT 40404 5172 17 bed bed NN 40404 5172 18 rock rock NN 40404 5172 19 of of IN 40404 5172 20 the the DT 40404 5172 21 locality locality NN 40404 5172 22 where where WRB 40404 5172 23 they -PRON- PRP 40404 5172 24 are be VBP 40404 5172 25 found find VBN 40404 5172 26 , , , 40404 5172 27 and and CC 40404 5172 28 others other NNS 40404 5172 29 having have VBG 40404 5172 30 been be VBN 40404 5172 31 brought bring VBN 40404 5172 32 from from IN 40404 5172 33 outside outside RB 40404 5172 34 and and CC 40404 5172 35 often often RB 40404 5172 36 distant distant JJ 40404 5172 37 places place NNS 40404 5172 38 . . . 40404 5173 1 Land land NN 40404 5173 2 ice ice NN 40404 5173 3 is be VBZ 40404 5173 4 the the DT 40404 5173 5 only only JJ 40404 5173 6 agent agent NN 40404 5173 7 known know VBN 40404 5173 8 which which WDT 40404 5173 9 can can MD 40404 5173 10 spread spread VB 40404 5173 11 unstratified unstratified JJ 40404 5173 12 material material NN 40404 5173 13 in in IN 40404 5173 14 such such JJ 40404 5173 15 extensive extensive JJ 40404 5173 16 sheets sheet NNS 40404 5173 17 . . . 40404 5174 1 The the DT 40404 5174 2 _ _ NNP 40404 5174 3 fine fine JJ 40404 5174 4 material material NN 40404 5174 5 _ _ NNP 40404 5174 6 of of IN 40404 5174 7 the the DT 40404 5174 8 till till NN 40404 5174 9 comes come VBZ 40404 5174 10 from from IN 40404 5174 11 two two CD 40404 5174 12 different different JJ 40404 5174 13 sources source NNS 40404 5174 14 . . . 40404 5175 1 In in IN 40404 5175 2 part part NN 40404 5175 3 it -PRON- PRP 40404 5175 4 is be VBZ 40404 5175 5 derived derive VBN 40404 5175 6 from from IN 40404 5175 7 old old JJ 40404 5175 8 residual residual JJ 40404 5175 9 clays clay NNS 40404 5175 10 , , , 40404 5175 11 which which WDT 40404 5175 12 in in IN 40404 5175 13 the the DT 40404 5175 14 making making NN 40404 5175 15 had have VBD 40404 5175 16 been be VBN 40404 5175 17 leached leach VBN 40404 5175 18 of of IN 40404 5175 19 the the DT 40404 5175 20 lime lime NN 40404 5175 21 and and CC 40404 5175 22 other other JJ 40404 5175 23 soluble soluble JJ 40404 5175 24 ingredients ingredient NNS 40404 5175 25 of of IN 40404 5175 26 the the DT 40404 5175 27 rock rock NN 40404 5175 28 from from IN 40404 5175 29 which which WDT 40404 5175 30 they -PRON- PRP 40404 5175 31 weathered weather VBD 40404 5175 32 . . . 40404 5176 1 In in IN 40404 5176 2 part part NN 40404 5176 3 it -PRON- PRP 40404 5176 4 consists consist VBZ 40404 5176 5 of of IN 40404 5176 6 sound sound JJ 40404 5176 7 rock rock NN 40404 5176 8 ground ground NN 40404 5176 9 fine fine RB 40404 5176 10 ; ; : 40404 5176 11 a a DT 40404 5176 12 drop drop NN 40404 5176 13 of of IN 40404 5176 14 acid acid NN 40404 5176 15 on on IN 40404 5176 16 fresh fresh JJ 40404 5176 17 , , , 40404 5176 18 clayey clayey JJ 40404 5176 19 till till IN 40404 5176 20 often often RB 40404 5176 21 proves prove VBZ 40404 5176 22 by by IN 40404 5176 23 brisk brisk JJ 40404 5176 24 effervescence effervescence NN 40404 5176 25 that that IN 40404 5176 26 the the DT 40404 5176 27 till till IN 40404 5176 28 contains contain VBZ 40404 5176 29 much much JJ 40404 5176 30 undecayed undecayed JJ 40404 5176 31 limestone limestone NN 40404 5176 32 flour flour NN 40404 5176 33 . . . 40404 5177 1 The the DT 40404 5177 2 ice ice NN 40404 5177 3 sheet sheet NN 40404 5177 4 , , , 40404 5177 5 therefore therefore RB 40404 5177 6 , , , 40404 5177 7 both both DT 40404 5177 8 scraped scrape VBD 40404 5177 9 up up RP 40404 5177 10 the the DT 40404 5177 11 mantle mantle NN 40404 5177 12 of of IN 40404 5177 13 long long RB 40404 5177 14 - - HYPH 40404 5177 15 weathered weather VBN 40404 5177 16 waste waste NN 40404 5177 17 which which WDT 40404 5177 18 covered cover VBD 40404 5177 19 the the DT 40404 5177 20 country country NN 40404 5177 21 before before IN 40404 5177 22 its -PRON- PRP$ 40404 5177 23 coming coming NN 40404 5177 24 , , , 40404 5177 25 and and CC 40404 5177 26 also also RB 40404 5177 27 ground grind VBN 40404 5177 28 heavily heavily RB 40404 5177 29 upon upon IN 40404 5177 30 the the DT 40404 5177 31 sound sound JJ 40404 5177 32 rock rock NN 40404 5177 33 underneath underneath RB 40404 5177 34 , , , 40404 5177 35 and and CC 40404 5177 36 crushed crush VBD 40404 5177 37 and and CC 40404 5177 38 wore wear VBD 40404 5177 39 to to TO 40404 5177 40 rock rock VB 40404 5177 41 flour flour NN 40404 5177 42 the the DT 40404 5177 43 fragments fragment NNS 40404 5177 44 which which WDT 40404 5177 45 it -PRON- PRP 40404 5177 46 carried carry VBD 40404 5177 47 . . . 40404 5178 1 The the DT 40404 5178 2 color color NN 40404 5178 3 of of IN 40404 5178 4 unweathered unweathered JJ 40404 5178 5 till till IN 40404 5178 6 depends depend VBZ 40404 5178 7 on on IN 40404 5178 8 that that DT 40404 5178 9 of of IN 40404 5178 10 the the DT 40404 5178 11 materials material NNS 40404 5178 12 of of IN 40404 5178 13 which which WDT 40404 5178 14 it -PRON- PRP 40404 5178 15 is be VBZ 40404 5178 16 composed compose VBN 40404 5178 17 . . . 40404 5179 1 Where where WRB 40404 5179 2 red red JJ 40404 5179 3 sandstones sandstone NNS 40404 5179 4 have have VBP 40404 5179 5 contributed contribute VBN 40404 5179 6 largely largely RB 40404 5179 7 to to IN 40404 5179 8 its -PRON- PRP$ 40404 5179 9 making making NN 40404 5179 10 , , , 40404 5179 11 as as IN 40404 5179 12 over over IN 40404 5179 13 the the DT 40404 5179 14 Triassic Triassic NNP 40404 5179 15 sandstones sandstone NNS 40404 5179 16 of of IN 40404 5179 17 the the DT 40404 5179 18 eastern eastern JJ 40404 5179 19 states states NNP 40404 5179 20 and and CC 40404 5179 21 the the DT 40404 5179 22 Algonkian algonkian JJ 40404 5179 23 sandstones sandstone VBZ 40404 5179 24 about about IN 40404 5179 25 Lake Lake NNP 40404 5179 26 Superior Superior NNP 40404 5179 27 , , , 40404 5179 28 the the DT 40404 5179 29 drift drift NN 40404 5179 30 is be VBZ 40404 5179 31 reddish reddish JJ 40404 5179 32 . . . 40404 5180 1 When when WRB 40404 5180 2 derived derive VBN 40404 5180 3 in in IN 40404 5180 4 part part NN 40404 5180 5 from from IN 40404 5180 6 coaly coaly NN 40404 5180 7 shales shale NNS 40404 5180 8 , , , 40404 5180 9 as as IN 40404 5180 10 over over IN 40404 5180 11 many many JJ 40404 5180 12 outcrops outcrop NNS 40404 5180 13 of of IN 40404 5180 14 the the DT 40404 5180 15 Pennsylvanian Pennsylvanian NNP 40404 5180 16 , , , 40404 5180 17 it -PRON- PRP 40404 5180 18 may may MD 40404 5180 19 when when WRB 40404 5180 20 moist moist NN 40404 5180 21 be be VB 40404 5180 22 almost almost RB 40404 5180 23 black black JJ 40404 5180 24 . . . 40404 5181 1 Fresh fresh JJ 40404 5181 2 till till NN 40404 5181 3 is be VBZ 40404 5181 4 normally normally RB 40404 5181 5 a a DT 40404 5181 6 dull dull JJ 40404 5181 7 gray gray NN 40404 5181 8 or or CC 40404 5181 9 bluish bluish JJ 40404 5181 10 , , , 40404 5181 11 so so RB 40404 5181 12 largely largely RB 40404 5181 13 is be VBZ 40404 5181 14 it -PRON- PRP 40404 5181 15 made make VBN 40404 5181 16 up up RP 40404 5181 17 of of IN 40404 5181 18 the the DT 40404 5181 19 grindings grinding NNS 40404 5181 20 of of IN 40404 5181 21 unoxidized unoxidized JJ 40404 5181 22 rocks rock NNS 40404 5181 23 of of IN 40404 5181 24 these these DT 40404 5181 25 common common JJ 40404 5181 26 colors color NNS 40404 5181 27 . . . 40404 5182 1 Except except IN 40404 5182 2 where where WRB 40404 5182 3 composed compose VBN 40404 5182 4 chiefly chiefly RB 40404 5182 5 of of IN 40404 5182 6 sand sand NN 40404 5182 7 or or CC 40404 5182 8 coarser coarser NN 40404 5182 9 stuff stuff NN 40404 5182 10 , , , 40404 5182 11 unweathered unweathere VBN 40404 5182 12 till till IN 40404 5182 13 is be VBZ 40404 5182 14 often often RB 40404 5182 15 exceedingly exceedingly RB 40404 5182 16 dense dense JJ 40404 5182 17 . . . 40404 5183 1 Can Can MD 40404 5183 2 you -PRON- PRP 40404 5183 3 suggest suggest VB 40404 5183 4 by by IN 40404 5183 5 what what WP 40404 5183 6 means mean VBZ 40404 5183 7 it -PRON- PRP 40404 5183 8 has have VBZ 40404 5183 9 been be VBN 40404 5183 10 thus thus RB 40404 5183 11 compacted compact VBN 40404 5183 12 ? ? . 40404 5184 1 Did do VBD 40404 5184 2 the the DT 40404 5184 3 ice ice NN 40404 5184 4 fields field NNS 40404 5184 5 of of IN 40404 5184 6 the the DT 40404 5184 7 Glacial Glacial NNP 40404 5184 8 epoch epoch NN 40404 5184 9 bear bear VB 40404 5184 10 heavy heavy JJ 40404 5184 11 surface surface NN 40404 5184 12 moraines moraine NNS 40404 5184 13 like like IN 40404 5184 14 the the DT 40404 5184 15 medial medial JJ 40404 5184 16 and and CC 40404 5184 17 lateral lateral JJ 40404 5184 18 moraines moraine NNS 40404 5184 19 of of IN 40404 5184 20 valley valley NNP 40404 5184 21 glaciers glacier NNS 40404 5184 22 ? ? . 40404 5185 1 Where where WRB 40404 5185 2 was be VBD 40404 5185 3 the the DT 40404 5185 4 greater great JJR 40404 5185 5 part part NN 40404 5185 6 of of IN 40404 5185 7 the the DT 40404 5185 8 load load NN 40404 5185 9 of of IN 40404 5185 10 these these DT 40404 5185 11 ice ice NN 40404 5185 12 fields field NNS 40404 5185 13 carried carry VBN 40404 5185 14 , , , 40404 5185 15 judging judge VBG 40404 5185 16 from from IN 40404 5185 17 what what WP 40404 5185 18 you -PRON- PRP 40404 5185 19 know know VBP 40404 5185 20 of of IN 40404 5185 21 the the DT 40404 5185 22 glaciers glacier NNS 40404 5185 23 of of IN 40404 5185 24 Greenland Greenland NNP 40404 5185 25 ? ? . 40404 5186 1 = = NFP 40404 5186 2 Bowlders bowlder NNS 40404 5186 3 of of IN 40404 5186 4 the the DT 40404 5186 5 drift.= drift.= NNS 40404 5186 6 The the DT 40404 5186 7 pebbles pebble NNS 40404 5186 8 and and CC 40404 5186 9 bowlders bowlder NNS 40404 5186 10 of of IN 40404 5186 11 the the DT 40404 5186 12 drift drift NN 40404 5186 13 are be VBP 40404 5186 14 in in IN 40404 5186 15 part part NN 40404 5186 16 stream stream NN 40404 5186 17 gravels gravel NNS 40404 5186 18 , , , 40404 5186 19 bowlders bowlder NNS 40404 5186 20 of of IN 40404 5186 21 weathering weathering NN 40404 5186 22 , , , 40404 5186 23 and and CC 40404 5186 24 other other JJ 40404 5186 25 coarse coarse JJ 40404 5186 26 rock rock NN 40404 5186 27 waste waste NN 40404 5186 28 picked pick VBD 40404 5186 29 up up RP 40404 5186 30 from from IN 40404 5186 31 the the DT 40404 5186 32 surface surface NN 40404 5186 33 of of IN 40404 5186 34 the the DT 40404 5186 35 country country NN 40404 5186 36 by by IN 40404 5186 37 the the DT 40404 5186 38 advancing advance VBG 40404 5186 39 ice ice NN 40404 5186 40 , , , 40404 5186 41 and and CC 40404 5186 42 in in IN 40404 5186 43 part part NN 40404 5186 44 are be VBP 40404 5186 45 fragments fragment NNS 40404 5186 46 plucked pluck VBN 40404 5186 47 from from IN 40404 5186 48 ledges ledge NNS 40404 5186 49 of of IN 40404 5186 50 sound sound JJ 40404 5186 51 rock rock NN 40404 5186 52 after after IN 40404 5186 53 the the DT 40404 5186 54 mantle mantle NN 40404 5186 55 of of IN 40404 5186 56 waste waste NN 40404 5186 57 had have VBD 40404 5186 58 been be VBN 40404 5186 59 removed remove VBN 40404 5186 60 . . . 40404 5187 1 Many many JJ 40404 5187 2 of of IN 40404 5187 3 the the DT 40404 5187 4 stones stone NNS 40404 5187 5 of of IN 40404 5187 6 the the DT 40404 5187 7 till till NN 40404 5187 8 are be VBP 40404 5187 9 dressed dress VBN 40404 5187 10 as as IN 40404 5187 11 only only RB 40404 5187 12 glacier glacier NN 40404 5187 13 ice ice NN 40404 5187 14 can can MD 40404 5187 15 do do VB 40404 5187 16 ; ; : 40404 5187 17 their -PRON- PRP$ 40404 5187 18 sharp sharp JJ 40404 5187 19 edges edge NNS 40404 5187 20 have have VBP 40404 5187 21 been be VBN 40404 5187 22 blunted blunt VBN 40404 5187 23 and and CC 40404 5187 24 their -PRON- PRP$ 40404 5187 25 sides side NNS 40404 5187 26 faceted facete VBN 40404 5187 27 and and CC 40404 5187 28 scored score VBD 40404 5187 29 . . . 40404 5188 1 We -PRON- PRP 40404 5188 2 may may MD 40404 5188 3 easily easily RB 40404 5188 4 find find VB 40404 5188 5 all all DT 40404 5188 6 stages stage NNS 40404 5188 7 of of IN 40404 5188 8 this this DT 40404 5188 9 process process NN 40404 5188 10 represented represent VBN 40404 5188 11 among among IN 40404 5188 12 the the DT 40404 5188 13 pebbles pebble NNS 40404 5188 14 of of IN 40404 5188 15 the the DT 40404 5188 16 till till NN 40404 5188 17 . . . 40404 5189 1 Some some DT 40404 5189 2 are be VBP 40404 5189 3 little little RB 40404 5189 4 worn worn JJ 40404 5189 5 , , , 40404 5189 6 even even RB 40404 5189 7 on on IN 40404 5189 8 their -PRON- PRP$ 40404 5189 9 edges edge NNS 40404 5189 10 ; ; : 40404 5189 11 some some DT 40404 5189 12 are be VBP 40404 5189 13 planed plane VBN 40404 5189 14 and and CC 40404 5189 15 scored score VBN 40404 5189 16 on on IN 40404 5189 17 one one CD 40404 5189 18 side side NN 40404 5189 19 only only RB 40404 5189 20 ; ; : 40404 5189 21 while while IN 40404 5189 22 some some DT 40404 5189 23 in in IN 40404 5189 24 their -PRON- PRP$ 40404 5189 25 long long JJ 40404 5189 26 journey journey NN 40404 5189 27 have have VBP 40404 5189 28 been be VBN 40404 5189 29 ground grind VBN 40404 5189 30 down down RP 40404 5189 31 to to IN 40404 5189 32 many many JJ 40404 5189 33 facets facet NNS 40404 5189 34 and and CC 40404 5189 35 have have VBP 40404 5189 36 lost lose VBN 40404 5189 37 much much JJ 40404 5189 38 of of IN 40404 5189 39 their -PRON- PRP$ 40404 5189 40 original original JJ 40404 5189 41 bulk bulk NN 40404 5189 42 . . . 40404 5190 1 Evidently evidently RB 40404 5190 2 the the DT 40404 5190 3 ice ice NN 40404 5190 4 played play VBD 40404 5190 5 fast fast RB 40404 5190 6 and and CC 40404 5190 7 loose loose JJ 40404 5190 8 with with IN 40404 5190 9 a a DT 40404 5190 10 stone stone NN 40404 5190 11 carried carry VBN 40404 5190 12 in in IN 40404 5190 13 its -PRON- PRP$ 40404 5190 14 basal basal NN 40404 5190 15 layers layer NNS 40404 5190 16 , , , 40404 5190 17 now now RB 40404 5190 18 holding hold VBG 40404 5190 19 it -PRON- PRP 40404 5190 20 fast fast RB 40404 5190 21 and and CC 40404 5190 22 rubbing rub VBG 40404 5190 23 it -PRON- PRP 40404 5190 24 against against IN 40404 5190 25 the the DT 40404 5190 26 rock rock NN 40404 5190 27 beneath beneath IN 40404 5190 28 , , , 40404 5190 29 now now RB 40404 5190 30 loosening loosen VBG 40404 5190 31 its -PRON- PRP$ 40404 5190 32 grasp grasp NN 40404 5190 33 and and CC 40404 5190 34 allowing allow VBG 40404 5190 35 the the DT 40404 5190 36 stone stone NN 40404 5190 37 to to TO 40404 5190 38 turn turn VB 40404 5190 39 . . . 40404 5191 1 Bowlders bowlder NNS 40404 5191 2 of of IN 40404 5191 3 the the DT 40404 5191 4 drift drift NN 40404 5191 5 are be VBP 40404 5191 6 sometimes sometimes RB 40404 5191 7 found find VBN 40404 5191 8 on on IN 40404 5191 9 higher high JJR 40404 5191 10 ground ground NN 40404 5191 11 than than IN 40404 5191 12 their -PRON- PRP$ 40404 5191 13 parent parent NN 40404 5191 14 ledges ledge NNS 40404 5191 15 . . . 40404 5192 1 Thus thus RB 40404 5192 2 bowlders bowlder NNS 40404 5192 3 have have VBP 40404 5192 4 been be VBN 40404 5192 5 left leave VBN 40404 5192 6 on on IN 40404 5192 7 the the DT 40404 5192 8 sides side NNS 40404 5192 9 of of IN 40404 5192 10 Mount Mount NNP 40404 5192 11 Katahdin Katahdin NNP 40404 5192 12 , , , 40404 5192 13 Maine Maine NNP 40404 5192 14 , , , 40404 5192 15 which which WDT 40404 5192 16 were be VBD 40404 5192 17 plucked pluck VBN 40404 5192 18 from from IN 40404 5192 19 limestone limestone NN 40404 5192 20 ledges ledge NNS 40404 5192 21 twelve twelve CD 40404 5192 22 miles mile NNS 40404 5192 23 distant distant JJ 40404 5192 24 and and CC 40404 5192 25 three three CD 40404 5192 26 thousand thousand CD 40404 5192 27 feet foot NNS 40404 5192 28 lower low JJR 40404 5192 29 than than IN 40404 5192 30 their -PRON- PRP$ 40404 5192 31 resting resting NN 40404 5192 32 place place NN 40404 5192 33 . . . 40404 5193 1 In in IN 40404 5193 2 other other JJ 40404 5193 3 cases case NNS 40404 5193 4 stones stone NNS 40404 5193 5 have have VBP 40404 5193 6 been be VBN 40404 5193 7 carried carry VBN 40404 5193 8 over over IN 40404 5193 9 mountain mountain NN 40404 5193 10 ranges range NNS 40404 5193 11 , , , 40404 5193 12 as as IN 40404 5193 13 in in IN 40404 5193 14 Vermont Vermont NNP 40404 5193 15 , , , 40404 5193 16 where where WRB 40404 5193 17 pebbles pebble NNS 40404 5193 18 of of IN 40404 5193 19 Burlington Burlington NNP 40404 5193 20 red red JJ 40404 5193 21 sandstone sandstone NN 40404 5193 22 were be VBD 40404 5193 23 dragged drag VBN 40404 5193 24 over over IN 40404 5193 25 the the DT 40404 5193 26 Green Green NNP 40404 5193 27 Mountains Mountains NNPS 40404 5193 28 , , , 40404 5193 29 three three CD 40404 5193 30 thousand thousand CD 40404 5193 31 feet foot NNS 40404 5193 32 in in IN 40404 5193 33 height height NN 40404 5193 34 , , , 40404 5193 35 and and CC 40404 5193 36 left leave VBD 40404 5193 37 in in IN 40404 5193 38 the the DT 40404 5193 39 Connecticut Connecticut NNP 40404 5193 40 valley valley NNP 40404 5193 41 sixty sixty CD 40404 5193 42 miles mile NNS 40404 5193 43 away away RB 40404 5193 44 . . . 40404 5194 1 No no DT 40404 5194 2 other other JJ 40404 5194 3 geological geological JJ 40404 5194 4 agent agent NN 40404 5194 5 than than IN 40404 5194 6 glacier glacier NNP 40404 5194 7 ice ice NN 40404 5194 8 could could MD 40404 5194 9 do do VB 40404 5194 10 this this DT 40404 5194 11 work work NN 40404 5194 12 . . . 40404 5195 1 The the DT 40404 5195 2 bowlders bowlder NNS 40404 5195 3 of of IN 40404 5195 4 the the DT 40404 5195 5 drift drift NN 40404 5195 6 are be VBP 40404 5195 7 often often RB 40404 5195 8 large large JJ 40404 5195 9 . . . 40404 5196 1 Bowlders bowlder NNS 40404 5196 2 ten ten CD 40404 5196 3 and and CC 40404 5196 4 twenty twenty CD 40404 5196 5 feet foot NNS 40404 5196 6 in in IN 40404 5196 7 diameter diameter NN 40404 5196 8 are be VBP 40404 5196 9 not not RB 40404 5196 10 uncommon uncommon JJ 40404 5196 11 , , , 40404 5196 12 and and CC 40404 5196 13 some some DT 40404 5196 14 are be VBP 40404 5196 15 known know VBN 40404 5196 16 whose whose WP$ 40404 5196 17 diameter diameter NN 40404 5196 18 exceeds exceed VBZ 40404 5196 19 fifty fifty CD 40404 5196 20 feet foot NNS 40404 5196 21 . . . 40404 5197 1 As as IN 40404 5197 2 a a DT 40404 5197 3 rule rule NN 40404 5197 4 the the DT 40404 5197 5 average average JJ 40404 5197 6 size size NN 40404 5197 7 of of IN 40404 5197 8 bowlders bowlder NNS 40404 5197 9 decreases decrease VBZ 40404 5197 10 with with IN 40404 5197 11 increasing increase VBG 40404 5197 12 distance distance NN 40404 5197 13 from from IN 40404 5197 14 their -PRON- PRP$ 40404 5197 15 sources source NNS 40404 5197 16 . . . 40404 5198 1 Why why WRB 40404 5198 2 ? ? . 40404 5199 1 = = NFP 40404 5199 2 Till till IN 40404 5199 3 plains.= plains.= CD 40404 5199 4 The the DT 40404 5199 5 surface surface NN 40404 5199 6 of of IN 40404 5199 7 the the DT 40404 5199 8 drift drift NN 40404 5199 9 , , , 40404 5199 10 where where WRB 40404 5199 11 left leave VBN 40404 5199 12 in in IN 40404 5199 13 its -PRON- PRP$ 40404 5199 14 initial initial JJ 40404 5199 15 state state NN 40404 5199 16 , , , 40404 5199 17 also also RB 40404 5199 18 displays display VBZ 40404 5199 19 clear clear JJ 40404 5199 20 proof proof NN 40404 5199 21 of of IN 40404 5199 22 its -PRON- PRP$ 40404 5199 23 glacial glacial JJ 40404 5199 24 origin origin NN 40404 5199 25 . . . 40404 5200 1 Over over IN 40404 5200 2 large large JJ 40404 5200 3 areas area NNS 40404 5200 4 it -PRON- PRP 40404 5200 5 is be VBZ 40404 5200 6 spread spread VBN 40404 5200 7 in in IN 40404 5200 8 level level NN 40404 5200 9 plains plain NNS 40404 5200 10 of of IN 40404 5200 11 till till IN 40404 5200 12 , , , 40404 5200 13 perhaps perhaps RB 40404 5200 14 bowlder bowlder NN 40404 5200 15 - - HYPH 40404 5200 16 dotted dotted JJ 40404 5200 17 , , , 40404 5200 18 similar similar JJ 40404 5200 19 to to IN 40404 5200 20 the the DT 40404 5200 21 plains plain NNS 40404 5200 22 of of IN 40404 5200 23 stony stony NNP 40404 5200 24 clay clay NN 40404 5200 25 left leave VBN 40404 5200 26 in in IN 40404 5200 27 Spitzbergen Spitzbergen NNP 40404 5200 28 by by IN 40404 5200 29 the the DT 40404 5200 30 recent recent JJ 40404 5200 31 retreat retreat NN 40404 5200 32 of of IN 40404 5200 33 some some DT 40404 5200 34 of of IN 40404 5200 35 the the DT 40404 5200 36 glaciers glacier NNS 40404 5200 37 of of IN 40404 5200 38 that that DT 40404 5200 39 island island NN 40404 5200 40 . . . 40404 5201 1 In in IN 40404 5201 2 places place NNS 40404 5201 3 the the DT 40404 5201 4 unstratified unstratified JJ 40404 5201 5 drift drift NN 40404 5201 6 is be VBZ 40404 5201 7 heaped heap VBN 40404 5201 8 in in IN 40404 5201 9 hills hill NNS 40404 5201 10 of of IN 40404 5201 11 various various JJ 40404 5201 12 kinds kind NNS 40404 5201 13 , , , 40404 5201 14 which which WDT 40404 5201 15 we -PRON- PRP 40404 5201 16 will will MD 40404 5201 17 now now RB 40404 5201 18 describe describe VB 40404 5201 19 . . . 40404 5202 1 [ [ -LRB- 40404 5202 2 Illustration illustration NN 40404 5202 3 : : : 40404 5202 4 Fig Fig NNP 40404 5202 5 . . . 40404 5203 1 354 354 CD 40404 5203 2 . . . 40404 5204 1 Map Map NNP 40404 5204 2 of of IN 40404 5204 3 a a DT 40404 5204 4 portion portion NN 40404 5204 5 of of IN 40404 5204 6 a a DT 40404 5204 7 Drumlin Drumlin NNP 40404 5204 8 Area Area NNP 40404 5204 9 near near IN 40404 5204 10 Oswego Oswego NNP 40404 5204 11 , , , 40404 5204 12 New New NNP 40404 5204 13 York York NNP 40404 5204 14 ] ] -RRB- 40404 5204 15 = = VBZ 40404 5204 16 Drumlins.= Drumlins.= NNP 40404 5204 17 Drumlins Drumlins NNPS 40404 5204 18 are be VBP 40404 5204 19 smooth smooth JJ 40404 5204 20 , , , 40404 5204 21 rounded rounded JJ 40404 5204 22 hills hill NNS 40404 5204 23 composed compose VBN 40404 5204 24 of of IN 40404 5204 25 till till IN 40404 5204 26 , , , 40404 5204 27 elliptical elliptical JJ 40404 5204 28 in in IN 40404 5204 29 base base NN 40404 5204 30 , , , 40404 5204 31 and and CC 40404 5204 32 having have VBG 40404 5204 33 their -PRON- PRP$ 40404 5204 34 longer long JJR 40404 5204 35 axes axis NNS 40404 5204 36 parallel parallel NN 40404 5204 37 to to IN 40404 5204 38 the the DT 40404 5204 39 movement movement NN 40404 5204 40 of of IN 40404 5204 41 the the DT 40404 5204 42 ice ice NN 40404 5204 43 as as IN 40404 5204 44 shown show VBN 40404 5204 45 by by IN 40404 5204 46 glacial glacial JJ 40404 5204 47 scorings scoring NNS 40404 5204 48 . . . 40404 5205 1 They -PRON- PRP 40404 5205 2 crowd crowd VBP 40404 5205 3 certain certain JJ 40404 5205 4 districts district NNS 40404 5205 5 in in IN 40404 5205 6 central central JJ 40404 5205 7 New New NNP 40404 5205 8 York York NNP 40404 5205 9 and and CC 40404 5205 10 in in IN 40404 5205 11 southern southern JJ 40404 5205 12 Wisconsin Wisconsin NNP 40404 5205 13 , , , 40404 5205 14 where where WRB 40404 5205 15 they -PRON- PRP 40404 5205 16 may may MD 40404 5205 17 be be VB 40404 5205 18 counted count VBN 40404 5205 19 by by IN 40404 5205 20 the the DT 40404 5205 21 thousands thousand NNS 40404 5205 22 . . . 40404 5206 1 Among among IN 40404 5206 2 the the DT 40404 5206 3 numerous numerous JJ 40404 5206 4 drumlins drumlin NNS 40404 5206 5 about about IN 40404 5206 6 Boston Boston NNP 40404 5206 7 is be VBZ 40404 5206 8 historic historic JJ 40404 5206 9 Bunker Bunker NNP 40404 5206 10 Hill Hill NNP 40404 5206 11 . . . 40404 5207 1 Drumlins drumlin NNS 40404 5207 2 are be VBP 40404 5207 3 made make VBN 40404 5207 4 of of IN 40404 5207 5 ground ground NN 40404 5207 6 moraine moraine VB 40404 5207 7 . . . 40404 5208 1 They -PRON- PRP 40404 5208 2 were be VBD 40404 5208 3 accumulated accumulate VBN 40404 5208 4 and and CC 40404 5208 5 given give VBN 40404 5208 6 shape shape NN 40404 5208 7 beneath beneath IN 40404 5208 8 the the DT 40404 5208 9 overriding override VBG 40404 5208 10 ice ice NN 40404 5208 11 , , , 40404 5208 12 much much RB 40404 5208 13 as as IN 40404 5208 14 are be VBP 40404 5208 15 sand sand NN 40404 5208 16 bars bar NNS 40404 5208 17 in in IN 40404 5208 18 a a DT 40404 5208 19 river river NN 40404 5208 20 , , , 40404 5208 21 or or CC 40404 5208 22 in in IN 40404 5208 23 some some DT 40404 5208 24 instances instance NNS 40404 5208 25 were be VBD 40404 5208 26 carved carve VBN 40404 5208 27 , , , 40404 5208 28 like like IN 40404 5208 29 roches roche NNS 40404 5208 30 moutonnées moutonnées IN 40404 5208 31 , , , 40404 5208 32 by by IN 40404 5208 33 an an DT 40404 5208 34 ice ice NN 40404 5208 35 sheet sheet NN 40404 5208 36 out out IN 40404 5208 37 of of IN 40404 5208 38 the the DT 40404 5208 39 till till NN 40404 5208 40 left leave VBN 40404 5208 41 by by IN 40404 5208 42 an an DT 40404 5208 43 earlier early JJR 40404 5208 44 ice ice NN 40404 5208 45 invasion invasion NN 40404 5208 46 . . . 40404 5209 1 = = NFP 40404 5209 2 Terminal terminal NN 40404 5209 3 moraines.= moraines.= NNS 40404 5209 4 The the DT 40404 5209 5 glaciated glaciated JJ 40404 5209 6 area area NN 40404 5209 7 is be VBZ 40404 5209 8 crossed cross VBN 40404 5209 9 by by IN 40404 5209 10 belts belt NNS 40404 5209 11 of of IN 40404 5209 12 thickened thicken VBN 40404 5209 13 drift drift NN 40404 5209 14 , , , 40404 5209 15 often often RB 40404 5209 16 a a DT 40404 5209 17 mile mile NN 40404 5209 18 or or CC 40404 5209 19 two two CD 40404 5209 20 , , , 40404 5209 21 and and CC 40404 5209 22 sometimes sometimes RB 40404 5209 23 even even RB 40404 5209 24 ten ten CD 40404 5209 25 miles mile NNS 40404 5209 26 and and CC 40404 5209 27 more more JJR 40404 5209 28 , , , 40404 5209 29 in in IN 40404 5209 30 breadth breadth NN 40404 5209 31 , , , 40404 5209 32 which which WDT 40404 5209 33 lie lie VBP 40404 5209 34 transverse transverse RB 40404 5209 35 to to IN 40404 5209 36 the the DT 40404 5209 37 movement movement NN 40404 5209 38 of of IN 40404 5209 39 the the DT 40404 5209 40 ice ice NN 40404 5209 41 and and CC 40404 5209 42 clearly clearly RB 40404 5209 43 are be VBP 40404 5209 44 the the DT 40404 5209 45 terminal terminal JJ 40404 5209 46 moraines moraine NNS 40404 5209 47 of of IN 40404 5209 48 ancient ancient JJ 40404 5209 49 ice ice NN 40404 5209 50 sheets sheet NNS 40404 5209 51 , , , 40404 5209 52 marking mark VBG 40404 5209 53 either either CC 40404 5209 54 the the DT 40404 5209 55 limit limit NN 40404 5209 56 of of IN 40404 5209 57 their -PRON- PRP$ 40404 5209 58 farthest farth JJS 40404 5209 59 advance advance NN 40404 5209 60 or or CC 40404 5209 61 pauses pause NNS 40404 5209 62 in in IN 40404 5209 63 their -PRON- PRP$ 40404 5209 64 general general JJ 40404 5209 65 retreat retreat NN 40404 5209 66 . . . 40404 5210 1 [ [ -LRB- 40404 5210 2 Illustration illustration NN 40404 5210 3 : : : 40404 5210 4 Fig Fig NNP 40404 5210 5 . . . 40404 5211 1 355 355 LS 40404 5211 2 . . . 40404 5212 1 Terminal Terminal NNP 40404 5212 2 Moraine Moraine NNP 40404 5212 3 , , , 40404 5212 4 Staten Staten NNP 40404 5212 5 Island Island NNP 40404 5212 6 ] ] -RRB- 40404 5212 7 The the DT 40404 5212 8 surface surface NN 40404 5212 9 of of IN 40404 5212 10 these these DT 40404 5212 11 moraines moraine NNS 40404 5212 12 is be VBZ 40404 5212 13 a a DT 40404 5212 14 jumble jumble NN 40404 5212 15 of of IN 40404 5212 16 elevations elevation NNS 40404 5212 17 and and CC 40404 5212 18 depressions depression NNS 40404 5212 19 , , , 40404 5212 20 which which WDT 40404 5212 21 vary vary VBP 40404 5212 22 from from IN 40404 5212 23 low low JJ 40404 5212 24 , , , 40404 5212 25 gentle gentle JJ 40404 5212 26 swells swell NNS 40404 5212 27 and and CC 40404 5212 28 shallow shallow JJ 40404 5212 29 sags sag NNS 40404 5212 30 to to IN 40404 5212 31 sharp sharp JJ 40404 5212 32 hills hill NNS 40404 5212 33 , , , 40404 5212 34 a a DT 40404 5212 35 hundred hundred CD 40404 5212 36 feet foot NNS 40404 5212 37 or or CC 40404 5212 38 so so RB 40404 5212 39 in in IN 40404 5212 40 height height NN 40404 5212 41 , , , 40404 5212 42 and and CC 40404 5212 43 deep deep JJ 40404 5212 44 , , , 40404 5212 45 steep steep JJ 40404 5212 46 - - HYPH 40404 5212 47 sided sided JJ 40404 5212 48 hollows hollow NNS 40404 5212 49 . . . 40404 5213 1 Such such JJ 40404 5213 2 tumultuous tumultuous JJ 40404 5213 3 hills hill NNS 40404 5213 4 and and CC 40404 5213 5 hummocks hummock NNS 40404 5213 6 , , , 40404 5213 7 set set VBN 40404 5213 8 with with IN 40404 5213 9 depressions depression NNS 40404 5213 10 of of IN 40404 5213 11 all all DT 40404 5213 12 shapes shape NNS 40404 5213 13 , , , 40404 5213 14 which which WDT 40404 5213 15 usually usually RB 40404 5213 16 are be VBP 40404 5213 17 without without IN 40404 5213 18 outlet outlet NN 40404 5213 19 and and CC 40404 5213 20 are be VBP 40404 5213 21 often often RB 40404 5213 22 occupied occupy VBN 40404 5213 23 by by IN 40404 5213 24 marshes marsh NNS 40404 5213 25 , , , 40404 5213 26 ponds pond NNS 40404 5213 27 , , , 40404 5213 28 and and CC 40404 5213 29 lakes lake NNS 40404 5213 30 , , , 40404 5213 31 surely surely RB 40404 5213 32 can can MD 40404 5213 33 not not RB 40404 5213 34 be be VB 40404 5213 35 the the DT 40404 5213 36 work work NN 40404 5213 37 of of IN 40404 5213 38 running running NN 40404 5213 39 water water NN 40404 5213 40 . . . 40404 5214 1 The the DT 40404 5214 2 hills hill NNS 40404 5214 3 are be VBP 40404 5214 4 heaps heap NNS 40404 5214 5 of of IN 40404 5214 6 drift drift NN 40404 5214 7 , , , 40404 5214 8 lodged lodge VBN 40404 5214 9 beneath beneath IN 40404 5214 10 the the DT 40404 5214 11 ice ice NN 40404 5214 12 edge edge NN 40404 5214 13 or or CC 40404 5214 14 piled pile VBD 40404 5214 15 along along RP 40404 5214 16 its -PRON- PRP$ 40404 5214 17 front front NN 40404 5214 18 . . . 40404 5215 1 The the DT 40404 5215 2 basins basin NNS 40404 5215 3 were be VBD 40404 5215 4 left leave VBN 40404 5215 5 among among IN 40404 5215 6 the the DT 40404 5215 7 tangle tangle NN 40404 5215 8 of of IN 40404 5215 9 morainic morainic JJ 40404 5215 10 knolls knoll NNS 40404 5215 11 and and CC 40404 5215 12 ridges ridge NNS 40404 5215 13 ( ( -LRB- 40404 5215 14 Fig fig NN 40404 5215 15 . . . 40404 5216 1 105 105 CD 40404 5216 2 ) ) -RRB- 40404 5216 3 as as IN 40404 5216 4 the the DT 40404 5216 5 margin margin NN 40404 5216 6 of of IN 40404 5216 7 the the DT 40404 5216 8 ice ice NN 40404 5216 9 moved move VBD 40404 5216 10 back back RB 40404 5216 11 and and CC 40404 5216 12 forth forth RB 40404 5216 13 . . . 40404 5217 1 Some some DT 40404 5217 2 bowl bowl NN 40404 5217 3 - - HYPH 40404 5217 4 shaped shape VBN 40404 5217 5 basins basin NNS 40404 5217 6 were be VBD 40404 5217 7 made make VBN 40404 5217 8 by by IN 40404 5217 9 the the DT 40404 5217 10 melting melting NN 40404 5217 11 of of IN 40404 5217 12 a a DT 40404 5217 13 mass mass NN 40404 5217 14 of of IN 40404 5217 15 ice ice NN 40404 5217 16 left leave VBN 40404 5217 17 behind behind RB 40404 5217 18 by by IN 40404 5217 19 the the DT 40404 5217 20 retreating retreat VBG 40404 5217 21 glacier glacier NN 40404 5217 22 and and CC 40404 5217 23 buried bury VBN 40404 5217 24 in in IN 40404 5217 25 its -PRON- PRP$ 40404 5217 26 debris debris NN 40404 5217 27 . . . 40404 5218 1 [ [ -LRB- 40404 5218 2 Illustration illustration NN 40404 5218 3 : : : 40404 5218 4 Fig Fig NNP 40404 5218 5 . . . 40404 5219 1 356 356 CD 40404 5219 2 . . . 40404 5220 1 Esker Esker NNP 40404 5220 2 , , , 40404 5220 3 New New NNP 40404 5220 4 York York NNP 40404 5220 5 ] ] -RRB- 40404 5220 6 = = NFP 40404 5220 7 The the DT 40404 5220 8 stratified stratified JJ 40404 5220 9 drift.= drift.= NNS 40404 5220 10 Like like IN 40404 5220 11 modern modern JJ 40404 5220 12 glaciers glacier NNS 40404 5220 13 the the DT 40404 5220 14 ice ice NN 40404 5220 15 sheets sheet NNS 40404 5220 16 of of IN 40404 5220 17 the the DT 40404 5220 18 Pleistocene Pleistocene NNP 40404 5220 19 were be VBD 40404 5220 20 ever ever RB 40404 5220 21 being be VBG 40404 5220 22 converted convert VBN 40404 5220 23 into into IN 40404 5220 24 water water NN 40404 5220 25 about about IN 40404 5220 26 their -PRON- PRP$ 40404 5220 27 margins margin NNS 40404 5220 28 . . . 40404 5221 1 Their -PRON- PRP$ 40404 5221 2 limits limit NNS 40404 5221 3 on on IN 40404 5221 4 the the DT 40404 5221 5 land land NN 40404 5221 6 were be VBD 40404 5221 7 the the DT 40404 5221 8 lines line NNS 40404 5221 9 where where WRB 40404 5221 10 their -PRON- PRP$ 40404 5221 11 onward onward JJ 40404 5221 12 flow flow NN 40404 5221 13 was be VBD 40404 5221 14 just just RB 40404 5221 15 balanced balance VBN 40404 5221 16 by by IN 40404 5221 17 melting melt VBG 40404 5221 18 and and CC 40404 5221 19 evaporation evaporation NN 40404 5221 20 . . . 40404 5222 1 On on IN 40404 5222 2 the the DT 40404 5222 3 surface surface NN 40404 5222 4 of of IN 40404 5222 5 the the DT 40404 5222 6 ice ice NN 40404 5222 7 along along IN 40404 5222 8 the the DT 40404 5222 9 marginal marginal JJ 40404 5222 10 zone zone NN 40404 5222 11 , , , 40404 5222 12 rivulets rivulet VBZ 40404 5222 13 no no DT 40404 5222 14 doubt doubt RB 40404 5222 15 flowed flow VBN 40404 5222 16 in in IN 40404 5222 17 summer summer NN 40404 5222 18 , , , 40404 5222 19 and and CC 40404 5222 20 found find VBD 40404 5222 21 their -PRON- PRP$ 40404 5222 22 way way NN 40404 5222 23 through through IN 40404 5222 24 crevasses crevasse NNS 40404 5222 25 to to IN 40404 5222 26 the the DT 40404 5222 27 interior interior NN 40404 5222 28 of of IN 40404 5222 29 the the DT 40404 5222 30 glacier glacier NN 40404 5222 31 or or CC 40404 5222 32 to to IN 40404 5222 33 the the DT 40404 5222 34 ground ground NN 40404 5222 35 . . . 40404 5223 1 Subglacial subglacial JJ 40404 5223 2 streams stream NNS 40404 5223 3 , , , 40404 5223 4 like like IN 40404 5223 5 those those DT 40404 5223 6 of of IN 40404 5223 7 the the DT 40404 5223 8 Malaspina Malaspina NNP 40404 5223 9 glacier glacier NN 40404 5223 10 , , , 40404 5223 11 issued issue VBN 40404 5223 12 from from IN 40404 5223 13 tunnels tunnel NNS 40404 5223 14 in in IN 40404 5223 15 the the DT 40404 5223 16 ice ice NN 40404 5223 17 , , , 40404 5223 18 and and CC 40404 5223 19 water water NN 40404 5223 20 ran run VBD 40404 5223 21 along along IN 40404 5223 22 the the DT 40404 5223 23 melting melt VBG 40404 5223 24 ice ice NN 40404 5223 25 front front NN 40404 5223 26 as as IN 40404 5223 27 it -PRON- PRP 40404 5223 28 is be VBZ 40404 5223 29 seen see VBN 40404 5223 30 to to TO 40404 5223 31 do do VB 40404 5223 32 about about IN 40404 5223 33 the the DT 40404 5223 34 glacier glacier NN 40404 5223 35 tongues tongue NNS 40404 5223 36 of of IN 40404 5223 37 Greenland Greenland NNP 40404 5223 38 . . . 40404 5224 1 All all PDT 40404 5224 2 these these DT 40404 5224 3 glacier glacier NN 40404 5224 4 waters water NNS 40404 5224 5 flowed flow VBD 40404 5224 6 away away RB 40404 5224 7 down down IN 40404 5224 8 the the DT 40404 5224 9 chief chief JJ 40404 5224 10 drainage drainage NN 40404 5224 11 channels channel NNS 40404 5224 12 in in IN 40404 5224 13 swollen swollen JJ 40404 5224 14 rivers river NNS 40404 5224 15 loaded load VBN 40404 5224 16 with with IN 40404 5224 17 glacial glacial JJ 40404 5224 18 waste waste NN 40404 5224 19 . . . 40404 5225 1 It -PRON- PRP 40404 5225 2 is be VBZ 40404 5225 3 not not RB 40404 5225 4 unexpected unexpected JJ 40404 5225 5 therefore therefore RB 40404 5225 6 that that IN 40404 5225 7 there there EX 40404 5225 8 are be VBP 40404 5225 9 found find VBN 40404 5225 10 , , , 40404 5225 11 over over IN 40404 5225 12 all all PDT 40404 5225 13 the the DT 40404 5225 14 country country NN 40404 5225 15 where where WRB 40404 5225 16 the the DT 40404 5225 17 melting melt VBG 40404 5225 18 ice ice NN 40404 5225 19 retreated retreat VBD 40404 5225 20 , , , 40404 5225 21 deposits deposit NNS 40404 5225 22 made make VBN 40404 5225 23 of of IN 40404 5225 24 the the DT 40404 5225 25 same same JJ 40404 5225 26 materials material NNS 40404 5225 27 as as IN 40404 5225 28 the the DT 40404 5225 29 till till NN 40404 5225 30 , , , 40404 5225 31 but but CC 40404 5225 32 sorted sort VBD 40404 5225 33 and and CC 40404 5225 34 stratified stratify VBN 40404 5225 35 by by IN 40404 5225 36 running run VBG 40404 5225 37 water water NN 40404 5225 38 . . . 40404 5226 1 Some some DT 40404 5226 2 of of IN 40404 5226 3 these these DT 40404 5226 4 were be VBD 40404 5226 5 deposited deposit VBN 40404 5226 6 behind behind IN 40404 5226 7 the the DT 40404 5226 8 ice ice NN 40404 5226 9 front front NN 40404 5226 10 in in IN 40404 5226 11 ice ice NN 40404 5226 12 - - HYPH 40404 5226 13 walled walled JJ 40404 5226 14 channels channel NNS 40404 5226 15 , , , 40404 5226 16 some some DT 40404 5226 17 at at IN 40404 5226 18 the the DT 40404 5226 19 edge edge NN 40404 5226 20 of of IN 40404 5226 21 the the DT 40404 5226 22 glaciers glacier NNS 40404 5226 23 by by IN 40404 5226 24 issuing issue VBG 40404 5226 25 streams stream NNS 40404 5226 26 , , , 40404 5226 27 and and CC 40404 5226 28 others other NNS 40404 5226 29 were be VBD 40404 5226 30 spread spread VBN 40404 5226 31 to to IN 40404 5226 32 long long JJ 40404 5226 33 distances distance NNS 40404 5226 34 in in IN 40404 5226 35 front front NN 40404 5226 36 of of IN 40404 5226 37 the the DT 40404 5226 38 ice ice NN 40404 5226 39 edge edge NN 40404 5226 40 by by IN 40404 5226 41 glacial glacial JJ 40404 5226 42 waters water NNS 40404 5226 43 as as IN 40404 5226 44 they -PRON- PRP 40404 5226 45 flowed flow VBD 40404 5226 46 away away RB 40404 5226 47 . . . 40404 5227 1 _ _ NNP 40404 5227 2 Eskers Eskers NNPS 40404 5227 3 _ _ NNP 40404 5227 4 are be VBP 40404 5227 5 narrow narrow JJ 40404 5227 6 , , , 40404 5227 7 winding wind VBG 40404 5227 8 ridges ridge NNS 40404 5227 9 of of IN 40404 5227 10 stratified stratified JJ 40404 5227 11 sand sand NN 40404 5227 12 and and CC 40404 5227 13 gravel gravel NN 40404 5227 14 whose whose WP$ 40404 5227 15 general general JJ 40404 5227 16 course course NN 40404 5227 17 lies lie VBZ 40404 5227 18 parallel parallel RB 40404 5227 19 with with IN 40404 5227 20 the the DT 40404 5227 21 movement movement NN 40404 5227 22 of of IN 40404 5227 23 the the DT 40404 5227 24 glacier glacier NN 40404 5227 25 . . . 40404 5228 1 These these DT 40404 5228 2 ridges ridge NNS 40404 5228 3 , , , 40404 5228 4 though though IN 40404 5228 5 evidently evidently RB 40404 5228 6 laid lay VBN 40404 5228 7 by by IN 40404 5228 8 running running NN 40404 5228 9 water water NN 40404 5228 10 , , , 40404 5228 11 do do VBP 40404 5228 12 not not RB 40404 5228 13 follow follow VB 40404 5228 14 lines line NNS 40404 5228 15 of of IN 40404 5228 16 continuous continuous JJ 40404 5228 17 descent descent NN 40404 5228 18 , , , 40404 5228 19 but but CC 40404 5228 20 may may MD 40404 5228 21 be be VB 40404 5228 22 found find VBN 40404 5228 23 to to TO 40404 5228 24 cross cross VB 40404 5228 25 river river NN 40404 5228 26 valleys valley NNS 40404 5228 27 and and CC 40404 5228 28 ascend ascend VBP 40404 5228 29 their -PRON- PRP$ 40404 5228 30 sides side NNS 40404 5228 31 . . . 40404 5229 1 Hence hence RB 40404 5229 2 the the DT 40404 5229 3 streams stream NNS 40404 5229 4 by by IN 40404 5229 5 which which WDT 40404 5229 6 eskers esker NNS 40404 5229 7 were be VBD 40404 5229 8 laid lay VBN 40404 5229 9 did do VBD 40404 5229 10 not not RB 40404 5229 11 flow flow VB 40404 5229 12 unconfined unconfined JJ 40404 5229 13 upon upon IN 40404 5229 14 the the DT 40404 5229 15 surface surface NN 40404 5229 16 of of IN 40404 5229 17 the the DT 40404 5229 18 ground ground NN 40404 5229 19 . . . 40404 5230 1 We -PRON- PRP 40404 5230 2 may may MD 40404 5230 3 infer infer VB 40404 5230 4 that that IN 40404 5230 5 eskers esker NNS 40404 5230 6 were be VBD 40404 5230 7 deposited deposit VBN 40404 5230 8 in in IN 40404 5230 9 the the DT 40404 5230 10 tunnels tunnel NNS 40404 5230 11 and and CC 40404 5230 12 ice ice NN 40404 5230 13 - - HYPH 40404 5230 14 walled walled JJ 40404 5230 15 gorges gorge NNS 40404 5230 16 of of IN 40404 5230 17 glacial glacial JJ 40404 5230 18 streams stream NNS 40404 5230 19 before before IN 40404 5230 20 they -PRON- PRP 40404 5230 21 issued issue VBD 40404 5230 22 from from IN 40404 5230 23 the the DT 40404 5230 24 ice ice NN 40404 5230 25 front front NN 40404 5230 26 . . . 40404 5231 1 [ [ -LRB- 40404 5231 2 Illustration illustration NN 40404 5231 3 : : : 40404 5231 4 Fig Fig NNP 40404 5231 5 . . . 40404 5232 1 357 357 CD 40404 5232 2 . . . 40404 5233 1 Kames Kames NNP 40404 5233 2 , , , 40404 5233 3 New New NNP 40404 5233 4 York York NNP 40404 5233 5 ] ] -RRB- 40404 5233 6 _ _ NNP 40404 5233 7 Kames Kames NNP 40404 5233 8 _ _ NNP 40404 5233 9 are be VBP 40404 5233 10 sand sand NN 40404 5233 11 and and CC 40404 5233 12 gravel gravel NN 40404 5233 13 knolls knoll NNS 40404 5233 14 , , , 40404 5233 15 associated associate VBN 40404 5233 16 for for IN 40404 5233 17 the the DT 40404 5233 18 most most JJS 40404 5233 19 part part NN 40404 5233 20 with with IN 40404 5233 21 terminal terminal JJ 40404 5233 22 moraines moraine NNS 40404 5233 23 , , , 40404 5233 24 and and CC 40404 5233 25 heaped heap VBN 40404 5233 26 by by IN 40404 5233 27 glacial glacial JJ 40404 5233 28 waters water NNS 40404 5233 29 along along IN 40404 5233 30 the the DT 40404 5233 31 margin margin NN 40404 5233 32 of of IN 40404 5233 33 the the DT 40404 5233 34 ice ice NN 40404 5233 35 . . . 40404 5234 1 [ [ -LRB- 40404 5234 2 Illustration illustration NN 40404 5234 3 : : : 40404 5234 4 Fig Fig NNP 40404 5234 5 . . . 40404 5235 1 358 358 CD 40404 5235 2 . . . 40404 5236 1 Diagram Diagram NNP 40404 5236 2 Illustrating Illustrating NNP 40404 5236 3 the the DT 40404 5236 4 Formation Formation NNP 40404 5236 5 of of IN 40404 5236 6 Kame Kame NNP 40404 5236 7 Terraces Terraces NNPS 40404 5236 8 _ _ NNP 40404 5236 9 i i PRP 40404 5236 10 _ _ NNP 40404 5236 11 , , , 40404 5236 12 glacier glacier NN 40404 5236 13 ice ice NN 40404 5236 14 ; ; : 40404 5236 15 _ _ NNP 40404 5236 16 t t NNP 40404 5236 17 _ _ NNP 40404 5236 18 , , , 40404 5236 19 _ _ NNP 40404 5236 20 t t NNP 40404 5236 21 _ _ NNP 40404 5236 22 , , , 40404 5236 23 terraces terrace NNS 40404 5236 24 ] ] -RRB- 40404 5236 25 _ _ NNP 40404 5236 26 Kame Kame NNP 40404 5236 27 terraces terrace NNS 40404 5236 28 _ _ NNP 40404 5236 29 are be VBP 40404 5236 30 hummocky hummocky JJ 40404 5236 31 embankments embankment NNS 40404 5236 32 of of IN 40404 5236 33 stratified stratify VBN 40404 5236 34 drift drift NN 40404 5236 35 sometimes sometimes RB 40404 5236 36 found find VBN 40404 5236 37 in in IN 40404 5236 38 rugged rugged JJ 40404 5236 39 regions region NNS 40404 5236 40 along along IN 40404 5236 41 the the DT 40404 5236 42 sides side NNS 40404 5236 43 of of IN 40404 5236 44 valleys valley NNS 40404 5236 45 . . . 40404 5237 1 In in IN 40404 5237 2 these these DT 40404 5237 3 valleys valley NNS 40404 5237 4 long long JJ 40404 5237 5 tongues tongue NNS 40404 5237 6 of of IN 40404 5237 7 glacier glacier NN 40404 5237 8 ice ice NN 40404 5237 9 lay lie VBD 40404 5237 10 slowly slowly RB 40404 5237 11 melting melt VBG 40404 5237 12 . . . 40404 5238 1 Glacial glacial JJ 40404 5238 2 waters water NNS 40404 5238 3 took take VBD 40404 5238 4 their -PRON- PRP$ 40404 5238 5 way way NN 40404 5238 6 between between IN 40404 5238 7 the the DT 40404 5238 8 edges edge NNS 40404 5238 9 of of IN 40404 5238 10 the the DT 40404 5238 11 glaciers glacier NNS 40404 5238 12 and and CC 40404 5238 13 the the DT 40404 5238 14 hillside hillside NN 40404 5238 15 , , , 40404 5238 16 and and CC 40404 5238 17 here here RB 40404 5238 18 deposited deposit VBN 40404 5238 19 sand sand NN 40404 5238 20 and and CC 40404 5238 21 gravel gravel NN 40404 5238 22 in in IN 40404 5238 23 rude rude JJ 40404 5238 24 terraces terrace NNS 40404 5238 25 . . . 40404 5239 1 _ _ NNP 40404 5239 2 Outwash Outwash NNP 40404 5239 3 plains plain NNS 40404 5239 4 _ _ NNP 40404 5239 5 are be VBP 40404 5239 6 plains plain NNS 40404 5239 7 of of IN 40404 5239 8 sand sand NN 40404 5239 9 and and CC 40404 5239 10 gravel gravel NN 40404 5239 11 which which WDT 40404 5239 12 frequently frequently RB 40404 5239 13 border border VBP 40404 5239 14 terminal terminal JJ 40404 5239 15 moraines moraine NNS 40404 5239 16 on on IN 40404 5239 17 their -PRON- PRP$ 40404 5239 18 outward outward JJ 40404 5239 19 face face NN 40404 5239 20 , , , 40404 5239 21 and and CC 40404 5239 22 were be VBD 40404 5239 23 spread spread VBN 40404 5239 24 evidently evidently RB 40404 5239 25 by by IN 40404 5239 26 outwash outwash NN 40404 5239 27 from from IN 40404 5239 28 the the DT 40404 5239 29 melting melt VBG 40404 5239 30 ice ice NN 40404 5239 31 . . . 40404 5240 1 Outwash outwash JJ 40404 5240 2 plains plain NNS 40404 5240 3 are be VBP 40404 5240 4 sometimes sometimes RB 40404 5240 5 pitted pit VBN 40404 5240 6 by by IN 40404 5240 7 bowl bowl NN 40404 5240 8 - - HYPH 40404 5240 9 shaped shape VBN 40404 5240 10 basins basin NNS 40404 5240 11 where where WRB 40404 5240 12 ice ice NN 40404 5240 13 blocks block NNS 40404 5240 14 were be VBD 40404 5240 15 left leave VBN 40404 5240 16 buried bury VBN 40404 5240 17 in in IN 40404 5240 18 the the DT 40404 5240 19 sand sand NN 40404 5240 20 by by IN 40404 5240 21 the the DT 40404 5240 22 retreating retreat VBG 40404 5240 23 glacier glacier NN 40404 5240 24 . . . 40404 5241 1 _ _ NNP 40404 5241 2 Valley Valley NNP 40404 5241 3 trains train NNS 40404 5241 4 _ _ NNP 40404 5241 5 are be VBP 40404 5241 6 deposits deposit NNS 40404 5241 7 of of IN 40404 5241 8 stratified stratify VBN 40404 5241 9 drift drift NN 40404 5241 10 with with IN 40404 5241 11 which which WDT 40404 5241 12 river river NN 40404 5241 13 valleys valley NNS 40404 5241 14 have have VBP 40404 5241 15 been be VBN 40404 5241 16 aggraded aggrade VBN 40404 5241 17 . . . 40404 5242 1 Valleys valley NNS 40404 5242 2 leading lead VBG 40404 5242 3 outward outward RB 40404 5242 4 from from IN 40404 5242 5 the the DT 40404 5242 6 ice ice NN 40404 5242 7 front front NN 40404 5242 8 were be VBD 40404 5242 9 flooded flood VBN 40404 5242 10 by by IN 40404 5242 11 glacial glacial JJ 40404 5242 12 waters water NNS 40404 5242 13 and and CC 40404 5242 14 were be VBD 40404 5242 15 filled fill VBN 40404 5242 16 often often RB 40404 5242 17 to to IN 40404 5242 18 great great JJ 40404 5242 19 depths depth NNS 40404 5242 20 with with IN 40404 5242 21 trains train NNS 40404 5242 22 of of IN 40404 5242 23 stream stream NN 40404 5242 24 - - HYPH 40404 5242 25 swept sweep VBN 40404 5242 26 drift drift NN 40404 5242 27 . . . 40404 5243 1 Since since IN 40404 5243 2 the the DT 40404 5243 3 disappearance disappearance NN 40404 5243 4 of of IN 40404 5243 5 the the DT 40404 5243 6 ice ice NN 40404 5243 7 these these DT 40404 5243 8 glacial glacial JJ 40404 5243 9 flood flood NN 40404 5243 10 plains plain NNS 40404 5243 11 have have VBP 40404 5243 12 been be VBN 40404 5243 13 dissected dissect VBN 40404 5243 14 by by IN 40404 5243 15 the the DT 40404 5243 16 shrunken shrink VBN 40404 5243 17 rivers river NNS 40404 5243 18 of of IN 40404 5243 19 recent recent JJ 40404 5243 20 times time NNS 40404 5243 21 and and CC 40404 5243 22 left leave VBD 40404 5243 23 on on IN 40404 5243 24 either either DT 40404 5243 25 side side NN 40404 5243 26 the the DT 40404 5243 27 valley valley NN 40404 5243 28 in in IN 40404 5243 29 high high JJ 40404 5243 30 terraces terrace NNS 40404 5243 31 . . . 40404 5244 1 Valley Valley NNP 40404 5244 2 trains train NNS 40404 5244 3 head head VBP 40404 5244 4 in in IN 40404 5244 5 morainic morainic JJ 40404 5244 6 plains plain NNS 40404 5244 7 , , , 40404 5244 8 and and CC 40404 5244 9 their -PRON- PRP$ 40404 5244 10 material material NN 40404 5244 11 grows grow VBZ 40404 5244 12 finer fine JJR 40404 5244 13 down down IN 40404 5244 14 valley valley NNP 40404 5244 15 and and CC 40404 5244 16 coarser coarser VB 40404 5244 17 toward toward IN 40404 5244 18 their -PRON- PRP$ 40404 5244 19 sources source NNS 40404 5244 20 . . . 40404 5245 1 Their -PRON- PRP$ 40404 5245 2 gradient gradient NN 40404 5245 3 is be VBZ 40404 5245 4 commonly commonly RB 40404 5245 5 greater great JJR 40404 5245 6 than than IN 40404 5245 7 that that DT 40404 5245 8 of of IN 40404 5245 9 the the DT 40404 5245 10 present present JJ 40404 5245 11 rivers river NNS 40404 5245 12 . . . 40404 5246 1 = = NFP 40404 5246 2 The the DT 40404 5246 3 extent extent NN 40404 5246 4 of of IN 40404 5246 5 the the DT 40404 5246 6 drift.= drift.= NNS 40404 5246 7 The the DT 40404 5246 8 extent extent NN 40404 5246 9 of of IN 40404 5246 10 the the DT 40404 5246 11 drift drift NN 40404 5246 12 of of IN 40404 5246 13 North North NNP 40404 5246 14 America America NNP 40404 5246 15 and and CC 40404 5246 16 its -PRON- PRP$ 40404 5246 17 southern southern JJ 40404 5246 18 limits limit NNS 40404 5246 19 are be VBP 40404 5246 20 best best RB 40404 5246 21 seen see VBN 40404 5246 22 in in IN 40404 5246 23 Figure Figure NNP 40404 5246 24 359 359 CD 40404 5246 25 . . . 40404 5247 1 Its -PRON- PRP$ 40404 5247 2 area area NN 40404 5247 3 is be VBZ 40404 5247 4 reckoned reckon VBN 40404 5247 5 at at IN 40404 5247 6 about about RB 40404 5247 7 four four CD 40404 5247 8 million million CD 40404 5247 9 square square JJ 40404 5247 10 miles mile NNS 40404 5247 11 . . . 40404 5248 1 The the DT 40404 5248 2 ice ice NN 40404 5248 3 fields field NNS 40404 5248 4 which which WDT 40404 5248 5 once once RB 40404 5248 6 covered cover VBD 40404 5248 7 so so RB 40404 5248 8 much much JJ 40404 5248 9 of of IN 40404 5248 10 our -PRON- PRP$ 40404 5248 11 continent continent NN 40404 5248 12 were be VBD 40404 5248 13 all all DT 40404 5248 14 together together RB 40404 5248 15 ten ten CD 40404 5248 16 times time NNS 40404 5248 17 as as RB 40404 5248 18 large large JJ 40404 5248 19 as as IN 40404 5248 20 the the DT 40404 5248 21 inland inland JJ 40404 5248 22 ice ice NN 40404 5248 23 of of IN 40404 5248 24 Greenland Greenland NNP 40404 5248 25 , , , 40404 5248 26 and and CC 40404 5248 27 about about RB 40404 5248 28 equal equal JJ 40404 5248 29 to to IN 40404 5248 30 the the DT 40404 5248 31 enormous enormous JJ 40404 5248 32 ice ice NN 40404 5248 33 cap cap NN 40404 5248 34 which which WDT 40404 5248 35 now now RB 40404 5248 36 covers cover VBZ 40404 5248 37 the the DT 40404 5248 38 antartic antartic JJ 40404 5248 39 regions region NNS 40404 5248 40 . . . 40404 5249 1 The the DT 40404 5249 2 ice ice NN 40404 5249 3 field field NN 40404 5249 4 of of IN 40404 5249 5 Europe Europe NNP 40404 5249 6 was be VBD 40404 5249 7 much much RB 40404 5249 8 smaller small JJR 40404 5249 9 , , , 40404 5249 10 measuring measure VBG 40404 5249 11 about about RB 40404 5249 12 seven seven CD 40404 5249 13 hundred hundred CD 40404 5249 14 and and CC 40404 5249 15 seventy seventy CD 40404 5249 16 thousand thousand CD 40404 5249 17 square square JJ 40404 5249 18 miles mile NNS 40404 5249 19 . . . 40404 5250 1 = = NFP 40404 5250 2 Centers Centers NNPS 40404 5250 3 of of IN 40404 5250 4 dispersion.= dispersion.= CD 40404 5250 5 The the DT 40404 5250 6 direction direction NN 40404 5250 7 of of IN 40404 5250 8 the the DT 40404 5250 9 movement movement NN 40404 5250 10 of of IN 40404 5250 11 the the DT 40404 5250 12 ice ice NN 40404 5250 13 is be VBZ 40404 5250 14 recorded record VBN 40404 5250 15 plainly plainly RB 40404 5250 16 in in IN 40404 5250 17 the the DT 40404 5250 18 scorings scoring NNS 40404 5250 19 of of IN 40404 5250 20 the the DT 40404 5250 21 rock rock NN 40404 5250 22 surface surface NN 40404 5250 23 , , , 40404 5250 24 in in IN 40404 5250 25 the the DT 40404 5250 26 shapes shape NNS 40404 5250 27 of of IN 40404 5250 28 glaciated glaciated JJ 40404 5250 29 hills hill NNS 40404 5250 30 , , , 40404 5250 31 in in IN 40404 5250 32 the the DT 40404 5250 33 axes axis NNS 40404 5250 34 of of IN 40404 5250 35 drumlins drumlin NNS 40404 5250 36 and and CC 40404 5250 37 eskers esker NNS 40404 5250 38 , , , 40404 5250 39 and and CC 40404 5250 40 in in IN 40404 5250 41 trains train NNS 40404 5250 42 of of IN 40404 5250 43 bowlders bowlder NNS 40404 5250 44 , , , 40404 5250 45 when when WRB 40404 5250 46 the the DT 40404 5250 47 ledges ledge NNS 40404 5250 48 from from IN 40404 5250 49 which which WDT 40404 5250 50 they -PRON- PRP 40404 5250 51 were be VBD 40404 5250 52 plucked pluck VBN 40404 5250 53 can can MD 40404 5250 54 be be VB 40404 5250 55 discovered discover VBN 40404 5250 56 . . . 40404 5251 1 In in IN 40404 5251 2 these these DT 40404 5251 3 ways way NNS 40404 5251 4 it -PRON- PRP 40404 5251 5 has have VBZ 40404 5251 6 been be VBN 40404 5251 7 proved prove VBN 40404 5251 8 that that IN 40404 5251 9 in in IN 40404 5251 10 North North NNP 40404 5251 11 America America NNP 40404 5251 12 there there EX 40404 5251 13 were be VBD 40404 5251 14 three three CD 40404 5251 15 centers center NNS 40404 5251 16 where where WRB 40404 5251 17 ice ice NN 40404 5251 18 gathered gather VBD 40404 5251 19 to to IN 40404 5251 20 the the DT 40404 5251 21 greatest great JJS 40404 5251 22 depth depth NN 40404 5251 23 , , , 40404 5251 24 and and CC 40404 5251 25 from from IN 40404 5251 26 which which WDT 40404 5251 27 it -PRON- PRP 40404 5251 28 flowed flow VBD 40404 5251 29 in in IN 40404 5251 30 all all DT 40404 5251 31 directions direction NNS 40404 5251 32 outward outward RB 40404 5251 33 . . . 40404 5252 1 There there EX 40404 5252 2 were be VBD 40404 5252 3 thus thus RB 40404 5252 4 three three CD 40404 5252 5 vast vast JJ 40404 5252 6 ice ice NN 40404 5252 7 fields,--one fields,--one NN 40404 5252 8 the the DT 40404 5252 9 _ _ NNP 40404 5252 10 Cordilleran Cordilleran NNP 40404 5252 11 _ _ NNP 40404 5252 12 , , , 40404 5252 13 which which WDT 40404 5252 14 lay lie VBD 40404 5252 15 upon upon IN 40404 5252 16 the the DT 40404 5252 17 Cordilleras Cordilleras NNP 40404 5252 18 of of IN 40404 5252 19 British British NNP 40404 5252 20 America America NNP 40404 5252 21 ; ; : 40404 5252 22 one one CD 40404 5252 23 the the DT 40404 5252 24 _ _ NNP 40404 5252 25 Keewatin Keewatin NNP 40404 5252 26 _ _ NNP 40404 5252 27 , , , 40404 5252 28 which which WDT 40404 5252 29 flowed flow VBD 40404 5252 30 out out RP 40404 5252 31 from from IN 40404 5252 32 the the DT 40404 5252 33 province province NN 40404 5252 34 of of IN 40404 5252 35 Keewatin Keewatin NNP 40404 5252 36 , , , 40404 5252 37 west west NN 40404 5252 38 of of IN 40404 5252 39 Hudson Hudson NNP 40404 5252 40 Bay Bay NNP 40404 5252 41 ; ; : 40404 5252 42 and and CC 40404 5252 43 one one CD 40404 5252 44 the the DT 40404 5252 45 _ _ NNP 40404 5252 46 Labrador Labrador NNP 40404 5252 47 _ _ NNP 40404 5252 48 ice ice NN 40404 5252 49 field field NN 40404 5252 50 , , , 40404 5252 51 whose whose WP$ 40404 5252 52 center center NN 40404 5252 53 of of IN 40404 5252 54 dispersion dispersion NN 40404 5252 55 was be VBD 40404 5252 56 on on IN 40404 5252 57 the the DT 40404 5252 58 highlands highland NNS 40404 5252 59 of of IN 40404 5252 60 the the DT 40404 5252 61 peninsula peninsula NN 40404 5252 62 of of IN 40404 5252 63 Labrador Labrador NNP 40404 5252 64 . . . 40404 5253 1 As as IN 40404 5253 2 shown show VBN 40404 5253 3 in in IN 40404 5253 4 Figure Figure NNP 40404 5253 5 359 359 CD 40404 5253 6 , , , 40404 5253 7 the the DT 40404 5253 8 western western JJ 40404 5253 9 ice ice NN 40404 5253 10 field field NN 40404 5253 11 extended extend VBD 40404 5253 12 but but CC 40404 5253 13 a a DT 40404 5253 14 short short JJ 40404 5253 15 way way NN 40404 5253 16 beyond beyond IN 40404 5253 17 the the DT 40404 5253 18 eastern eastern JJ 40404 5253 19 foothills foothill NNS 40404 5253 20 of of IN 40404 5253 21 the the DT 40404 5253 22 Rocky Rocky NNP 40404 5253 23 Mountains Mountains NNPS 40404 5253 24 , , , 40404 5253 25 where where WRB 40404 5253 26 perhaps perhaps RB 40404 5253 27 it -PRON- PRP 40404 5253 28 met meet VBD 40404 5253 29 the the DT 40404 5253 30 far far RB 40404 5253 31 - - HYPH 40404 5253 32 traveled travel VBN 40404 5253 33 ice ice NN 40404 5253 34 from from IN 40404 5253 35 the the DT 40404 5253 36 great great JJ 40404 5253 37 central central JJ 40404 5253 38 field field NN 40404 5253 39 . . . 40404 5254 1 The the DT 40404 5254 2 Keewatin Keewatin NNP 40404 5254 3 and and CC 40404 5254 4 the the DT 40404 5254 5 Labrador Labrador NNP 40404 5254 6 ice ice NN 40404 5254 7 fields field NNS 40404 5254 8 flowed flow VBD 40404 5254 9 farthest farthest NN 40404 5254 10 toward toward IN 40404 5254 11 the the DT 40404 5254 12 south south NN 40404 5254 13 , , , 40404 5254 14 and and CC 40404 5254 15 in in IN 40404 5254 16 the the DT 40404 5254 17 Mississippi Mississippi NNP 40404 5254 18 valley valley NN 40404 5254 19 the the DT 40404 5254 20 one one NN 40404 5254 21 reached reach VBD 40404 5254 22 the the DT 40404 5254 23 mouth mouth NN 40404 5254 24 of of IN 40404 5254 25 the the DT 40404 5254 26 Missouri Missouri NNP 40404 5254 27 and and CC 40404 5254 28 the the DT 40404 5254 29 other other JJ 40404 5254 30 nearly nearly RB 40404 5254 31 to to IN 40404 5254 32 the the DT 40404 5254 33 mouth mouth NN 40404 5254 34 of of IN 40404 5254 35 the the DT 40404 5254 36 Ohio Ohio NNP 40404 5254 37 . . . 40404 5255 1 In in IN 40404 5255 2 Minnesota Minnesota NNP 40404 5255 3 and and CC 40404 5255 4 Wisconsin Wisconsin NNP 40404 5255 5 and and CC 40404 5255 6 northward northward RB 40404 5255 7 they -PRON- PRP 40404 5255 8 merged merge VBD 40404 5255 9 in in IN 40404 5255 10 one one CD 40404 5255 11 vast vast JJ 40404 5255 12 field field NN 40404 5255 13 . . . 40404 5256 1 [ [ -LRB- 40404 5256 2 Illustration illustration NN 40404 5256 3 : : : 40404 5256 4 Fig Fig NNP 40404 5256 5 . . . 40404 5257 1 359 359 CD 40404 5257 2 . . . 40404 5258 1 Hypothetical Hypothetical NNP 40404 5258 2 Map Map NNP 40404 5258 3 of of IN 40404 5258 4 the the DT 40404 5258 5 Pleistocene Pleistocene NNP 40404 5258 6 Ice Ice NNP 40404 5258 7 Sheets Sheets NNPS 40404 5258 8 of of IN 40404 5258 9 North North NNP 40404 5258 10 America America NNP 40404 5258 11 From from IN 40404 5258 12 Salisbury Salisbury NNP 40404 5258 13 's 's POS 40404 5258 14 _ _ NNP 40404 5258 15 Glacial Glacial NNP 40404 5258 16 Geology Geology NNP 40404 5258 17 of of IN 40404 5258 18 New New NNP 40404 5258 19 Jersey Jersey NNP 40404 5258 20 _ _ NNP 40404 5258 21 ] ] -RRB- 40404 5258 22 The the DT 40404 5258 23 thickness thickness NN 40404 5258 24 of of IN 40404 5258 25 the the DT 40404 5258 26 ice ice NN 40404 5258 27 was be VBD 40404 5258 28 so so RB 40404 5258 29 great great JJ 40404 5258 30 that that IN 40404 5258 31 it -PRON- PRP 40404 5258 32 buried bury VBD 40404 5258 33 the the DT 40404 5258 34 highest high JJS 40404 5258 35 mountains mountain NNS 40404 5258 36 of of IN 40404 5258 37 eastern eastern JJ 40404 5258 38 North North NNP 40404 5258 39 America America NNP 40404 5258 40 , , , 40404 5258 41 as as IN 40404 5258 42 is be VBZ 40404 5258 43 proved prove VBN 40404 5258 44 by by IN 40404 5258 45 the the DT 40404 5258 46 transported transport VBN 40404 5258 47 bowlders bowlder NNS 40404 5258 48 which which WDT 40404 5258 49 have have VBP 40404 5258 50 been be VBN 40404 5258 51 found find VBN 40404 5258 52 upon upon IN 40404 5258 53 their -PRON- PRP$ 40404 5258 54 summits summit NNS 40404 5258 55 . . . 40404 5259 1 If if IN 40404 5259 2 the the DT 40404 5259 3 land land NN 40404 5259 4 then then RB 40404 5259 5 stood stand VBD 40404 5259 6 at at IN 40404 5259 7 its -PRON- PRP$ 40404 5259 8 present present JJ 40404 5259 9 height height NN 40404 5259 10 above above IN 40404 5259 11 sea sea NN 40404 5259 12 level level NN 40404 5259 13 , , , 40404 5259 14 and and CC 40404 5259 15 if if IN 40404 5259 16 the the DT 40404 5259 17 average average JJ 40404 5259 18 slope slope NN 40404 5259 19 of of IN 40404 5259 20 the the DT 40404 5259 21 ice ice NN 40404 5259 22 were be VBD 40404 5259 23 no no RB 40404 5259 24 more more JJR 40404 5259 25 than than IN 40404 5259 26 ten ten CD 40404 5259 27 feet foot NNS 40404 5259 28 to to IN 40404 5259 29 the the DT 40404 5259 30 mile,--a mile,--a NNP 40404 5259 31 slope slope NN 40404 5259 32 so so RB 40404 5259 33 gentle gentle JJ 40404 5259 34 that that IN 40404 5259 35 the the DT 40404 5259 36 eye eye NN 40404 5259 37 could could MD 40404 5259 38 not not RB 40404 5259 39 detect detect VB 40404 5259 40 it -PRON- PRP 40404 5259 41 and and CC 40404 5259 42 less less JJR 40404 5259 43 than than IN 40404 5259 44 half half PDT 40404 5259 45 the the DT 40404 5259 46 slope slope NN 40404 5259 47 of of IN 40404 5259 48 the the DT 40404 5259 49 interior interior NN 40404 5259 50 of of IN 40404 5259 51 the the DT 40404 5259 52 inland inland JJ 40404 5259 53 ice ice NN 40404 5259 54 of of IN 40404 5259 55 Greenland,--the Greenland,--the NNP 40404 5259 56 ice ice NN 40404 5259 57 plateaus plateaus NN 40404 5259 58 about about IN 40404 5259 59 Hudson Hudson NNP 40404 5259 60 Bay Bay NNP 40404 5259 61 must must MD 40404 5259 62 have have VB 40404 5259 63 reached reach VBN 40404 5259 64 a a DT 40404 5259 65 thickness thickness NN 40404 5259 66 of of IN 40404 5259 67 at at RB 40404 5259 68 least least RBS 40404 5259 69 ten ten CD 40404 5259 70 thousand thousand CD 40404 5259 71 feet foot NNS 40404 5259 72 . . . 40404 5260 1 In in IN 40404 5260 2 Europe Europe NNP 40404 5260 3 the the DT 40404 5260 4 Scandinavian scandinavian JJ 40404 5260 5 plateau plateau NN 40404 5260 6 was be VBD 40404 5260 7 the the DT 40404 5260 8 chief chief JJ 40404 5260 9 center center NN 40404 5260 10 of of IN 40404 5260 11 dispersion dispersion NN 40404 5260 12 . . . 40404 5261 1 At at IN 40404 5261 2 the the DT 40404 5261 3 time time NN 40404 5261 4 of of IN 40404 5261 5 greatest great JJS 40404 5261 6 glaciation glaciation NN 40404 5261 7 a a DT 40404 5261 8 continuous continuous JJ 40404 5261 9 field field NN 40404 5261 10 of of IN 40404 5261 11 ice ice NN 40404 5261 12 extended extend VBN 40404 5261 13 from from IN 40404 5261 14 the the DT 40404 5261 15 Ural Ural NNP 40404 5261 16 Mountains Mountains NNPS 40404 5261 17 to to IN 40404 5261 18 the the DT 40404 5261 19 Atlantic Atlantic NNP 40404 5261 20 , , , 40404 5261 21 where where WRB 40404 5261 22 , , , 40404 5261 23 off off IN 40404 5261 24 the the DT 40404 5261 25 coasts coast NNS 40404 5261 26 of of IN 40404 5261 27 Norway Norway NNP 40404 5261 28 and and CC 40404 5261 29 the the DT 40404 5261 30 British British NNP 40404 5261 31 Isles Isles NNPS 40404 5261 32 , , , 40404 5261 33 it -PRON- PRP 40404 5261 34 met meet VBD 40404 5261 35 the the DT 40404 5261 36 sea sea NN 40404 5261 37 in in IN 40404 5261 38 an an DT 40404 5261 39 unbroken unbroken JJ 40404 5261 40 ice ice NN 40404 5261 41 wall wall NN 40404 5261 42 . . . 40404 5262 1 On on IN 40404 5262 2 the the DT 40404 5262 3 south south NN 40404 5262 4 it -PRON- PRP 40404 5262 5 reached reach VBD 40404 5262 6 to to IN 40404 5262 7 southern southern JJ 40404 5262 8 England England NNP 40404 5262 9 , , , 40404 5262 10 Belgium Belgium NNP 40404 5262 11 , , , 40404 5262 12 and and CC 40404 5262 13 central central JJ 40404 5262 14 Germany Germany NNP 40404 5262 15 , , , 40404 5262 16 and and CC 40404 5262 17 deployed deploy VBN 40404 5262 18 on on IN 40404 5262 19 the the DT 40404 5262 20 eastern eastern JJ 40404 5262 21 plains plain VBZ 40404 5262 22 in in IN 40404 5262 23 wide wide JJ 40404 5262 24 lobes lobe NNS 40404 5262 25 over over IN 40404 5262 26 Poland Poland NNP 40404 5262 27 and and CC 40404 5262 28 central central JJ 40404 5262 29 Russia Russia NNP 40404 5262 30 ( ( -LRB- 40404 5262 31 Fig Fig NNP 40404 5262 32 . . . 40404 5263 1 360 360 CD 40404 5263 2 ) ) -RRB- 40404 5263 3 . . . 40404 5264 1 [ [ -LRB- 40404 5264 2 Illustration illustration NN 40404 5264 3 : : : 40404 5264 4 Fig Fig NNP 40404 5264 5 . . . 40404 5265 1 360 360 CD 40404 5265 2 . . . 40404 5266 1 Hypothetical Hypothetical NNP 40404 5266 2 Map Map NNP 40404 5266 3 of of IN 40404 5266 4 the the DT 40404 5266 5 Pleistocene Pleistocene NNP 40404 5266 6 Ice Ice NNP 40404 5266 7 Sheet Sheet NNP 40404 5266 8 of of IN 40404 5266 9 Europe Europe NNP 40404 5266 10 ] ] -RRB- 40404 5266 11 At at IN 40404 5266 12 the the DT 40404 5266 13 same same JJ 40404 5266 14 time time NN 40404 5266 15 the the DT 40404 5266 16 Alps Alps NNPS 40404 5266 17 supported support VBD 40404 5266 18 giant giant JJ 40404 5266 19 glaciers glacier NNS 40404 5266 20 many many JJ 40404 5266 21 times time NNS 40404 5266 22 the the DT 40404 5266 23 size size NN 40404 5266 24 of of IN 40404 5266 25 the the DT 40404 5266 26 surviving survive VBG 40404 5266 27 glaciers glacier NNS 40404 5266 28 of of IN 40404 5266 29 to to IN 40404 5266 30 - - HYPH 40404 5266 31 day day NN 40404 5266 32 , , , 40404 5266 33 and and CC 40404 5266 34 a a DT 40404 5266 35 piedmont piedmont NNP 40404 5266 36 glacier glacier NN 40404 5266 37 covered cover VBD 40404 5266 38 the the DT 40404 5266 39 plains plain NNS 40404 5266 40 of of IN 40404 5266 41 northern northern JJ 40404 5266 42 Switzerland Switzerland NNP 40404 5266 43 . . . 40404 5267 1 = = NFP 40404 5267 2 The the DT 40404 5267 3 thickness thickness NN 40404 5267 4 of of IN 40404 5267 5 the the DT 40404 5267 6 drift.= drift.= NNS 40404 5267 7 The the DT 40404 5267 8 drift drift NN 40404 5267 9 is be VBZ 40404 5267 10 far far RB 40404 5267 11 from from IN 40404 5267 12 uniform uniform NN 40404 5267 13 in in IN 40404 5267 14 thickness thickness NN 40404 5267 15 . . . 40404 5268 1 It -PRON- PRP 40404 5268 2 is be VBZ 40404 5268 3 comparatively comparatively RB 40404 5268 4 thin thin JJ 40404 5268 5 and and CC 40404 5268 6 scanty scanty VB 40404 5268 7 over over IN 40404 5268 8 the the DT 40404 5268 9 Laurentian laurentian JJ 40404 5268 10 highlands highland NNS 40404 5268 11 and and CC 40404 5268 12 the the DT 40404 5268 13 rugged rugged JJ 40404 5268 14 regions region NNS 40404 5268 15 of of IN 40404 5268 16 New New NNP 40404 5268 17 England England NNP 40404 5268 18 , , , 40404 5268 19 while while IN 40404 5268 20 from from IN 40404 5268 21 southern southern JJ 40404 5268 22 New New NNP 40404 5268 23 York York NNP 40404 5268 24 and and CC 40404 5268 25 Ontario Ontario NNP 40404 5268 26 westward westward RB 40404 5268 27 over over IN 40404 5268 28 the the DT 40404 5268 29 Mississippi Mississippi NNP 40404 5268 30 valley valley NN 40404 5268 31 , , , 40404 5268 32 and and CC 40404 5268 33 on on IN 40404 5268 34 the the DT 40404 5268 35 great great JJ 40404 5268 36 western western JJ 40404 5268 37 plains plain NNS 40404 5268 38 of of IN 40404 5268 39 Canada Canada NNP 40404 5268 40 , , , 40404 5268 41 it -PRON- PRP 40404 5268 42 exceeds exceed VBZ 40404 5268 43 an an DT 40404 5268 44 average average NN 40404 5268 45 of of IN 40404 5268 46 one one CD 40404 5268 47 hundred hundred CD 40404 5268 48 feet foot NNS 40404 5268 49 over over IN 40404 5268 50 wide wide JJ 40404 5268 51 areas area NNS 40404 5268 52 , , , 40404 5268 53 and and CC 40404 5268 54 in in IN 40404 5268 55 places place NNS 40404 5268 56 has have VBZ 40404 5268 57 five five CD 40404 5268 58 and and CC 40404 5268 59 six six CD 40404 5268 60 times time NNS 40404 5268 61 that that DT 40404 5268 62 thickness thickness NN 40404 5268 63 . . . 40404 5269 1 It -PRON- PRP 40404 5269 2 was be VBD 40404 5269 3 to to IN 40404 5269 4 this this DT 40404 5269 5 marginal marginal JJ 40404 5269 6 belt belt NN 40404 5269 7 that that WDT 40404 5269 8 the the DT 40404 5269 9 ice ice NN 40404 5269 10 sheets sheet NNS 40404 5269 11 brought bring VBD 40404 5269 12 their -PRON- PRP$ 40404 5269 13 loads load NNS 40404 5269 14 , , , 40404 5269 15 while while IN 40404 5269 16 northwards northward NNS 40404 5269 17 , , , 40404 5269 18 nearer nearer VB 40404 5269 19 the the DT 40404 5269 20 centers center NNS 40404 5269 21 of of IN 40404 5269 22 dispersion dispersion NN 40404 5269 23 , , , 40404 5269 24 erosion erosion NN 40404 5269 25 was be VBD 40404 5269 26 excessive excessive JJ 40404 5269 27 and and CC 40404 5269 28 deposition deposition NN 40404 5269 29 slight slight NN 40404 5269 30 . . . 40404 5270 1 = = NFP 40404 5270 2 Successive successive JJ 40404 5270 3 ice ice NN 40404 5270 4 invasions invasion NNS 40404 5270 5 and and CC 40404 5270 6 their -PRON- PRP$ 40404 5270 7 drift drift NN 40404 5270 8 sheets.= sheets.= CD 40404 5270 9 Recent recent JJ 40404 5270 10 studies study NNS 40404 5270 11 of of IN 40404 5270 12 the the DT 40404 5270 13 drift drift NN 40404 5270 14 prove prove VBP 40404 5270 15 that that IN 40404 5270 16 it -PRON- PRP 40404 5270 17 does do VBZ 40404 5270 18 not not RB 40404 5270 19 consist consist VB 40404 5270 20 of of IN 40404 5270 21 one one CD 40404 5270 22 indivisible indivisible JJ 40404 5270 23 formation formation NN 40404 5270 24 , , , 40404 5270 25 but but CC 40404 5270 26 includes include VBZ 40404 5270 27 a a DT 40404 5270 28 number number NN 40404 5270 29 of of IN 40404 5270 30 distinct distinct JJ 40404 5270 31 drift drift NN 40404 5270 32 sheets sheet NNS 40404 5270 33 , , , 40404 5270 34 each each DT 40404 5270 35 with with IN 40404 5270 36 its -PRON- PRP$ 40404 5270 37 own own JJ 40404 5270 38 peculiar peculiar JJ 40404 5270 39 features feature NNS 40404 5270 40 . . . 40404 5271 1 The the DT 40404 5271 2 Pleistocene Pleistocene NNP 40404 5271 3 epoch epoch NN 40404 5271 4 consisted consist VBD 40404 5271 5 , , , 40404 5271 6 therefore therefore RB 40404 5271 7 , , , 40404 5271 8 of of IN 40404 5271 9 several several JJ 40404 5271 10 glacial glacial NN 40404 5271 11 stages,--during stages,--during NN 40404 5271 12 each each DT 40404 5271 13 of of IN 40404 5271 14 which which WDT 40404 5271 15 the the DT 40404 5271 16 ice ice NN 40404 5271 17 advanced advance VBD 40404 5271 18 far far RB 40404 5271 19 southward,--together southward,--together NNP 40404 5271 20 with with IN 40404 5271 21 the the DT 40404 5271 22 intervening intervene VBG 40404 5271 23 interglacial interglacial JJ 40404 5271 24 stages stage NNS 40404 5271 25 when when WRB 40404 5271 26 , , , 40404 5271 27 under under IN 40404 5271 28 a a DT 40404 5271 29 milder milder NN 40404 5271 30 climate climate NN 40404 5271 31 , , , 40404 5271 32 the the DT 40404 5271 33 ice ice NN 40404 5271 34 melted melt VBD 40404 5271 35 back back RB 40404 5271 36 toward toward IN 40404 5271 37 its -PRON- PRP$ 40404 5271 38 sources source NNS 40404 5271 39 or or CC 40404 5271 40 wholly wholly RB 40404 5271 41 disappeared disappear VBD 40404 5271 42 . . . 40404 5272 1 [ [ -LRB- 40404 5272 2 Illustration illustration NN 40404 5272 3 : : : 40404 5272 4 Fig Fig NNP 40404 5272 5 . . . 40404 5273 1 361 361 CD 40404 5273 2 . . . 40404 5274 1 Diagram Diagram NNP 40404 5274 2 illustrating illustrate VBG 40404 5274 3 Criteria Criteria NNP 40404 5274 4 by by IN 40404 5274 5 which which WDT 40404 5274 6 Different Different NNP 40404 5274 7 Drift Drift NNP 40404 5274 8 Sheets Sheets NNPS 40404 5274 9 are be VBP 40404 5274 10 distinguished distinguish VBN 40404 5274 11 ] ] -RRB- 40404 5274 12 The the DT 40404 5274 13 evidences evidence NNS 40404 5274 14 of of IN 40404 5274 15 such such JJ 40404 5274 16 interglacial interglacial JJ 40404 5274 17 stages stage NNS 40404 5274 18 , , , 40404 5274 19 and and CC 40404 5274 20 the the DT 40404 5274 21 means mean NNS 40404 5274 22 by by IN 40404 5274 23 which which WDT 40404 5274 24 the the DT 40404 5274 25 different different JJ 40404 5274 26 drift drift NN 40404 5274 27 sheets sheet NNS 40404 5274 28 are be VBP 40404 5274 29 told tell VBN 40404 5274 30 apart apart RB 40404 5274 31 , , , 40404 5274 32 are be VBP 40404 5274 33 illustrated illustrate VBN 40404 5274 34 in in IN 40404 5274 35 Figure Figure NNP 40404 5274 36 361 361 CD 40404 5274 37 . . . 40404 5275 1 Here here RB 40404 5275 2 the the DT 40404 5275 3 country country NN 40404 5275 4 from from IN 40404 5275 5 N n CD 40404 5275 6 to to IN 40404 5275 7 S S NNP 40404 5275 8 is be VBZ 40404 5275 9 wholly wholly RB 40404 5275 10 covered cover VBN 40404 5275 11 by by IN 40404 5275 12 drift drift NN 40404 5275 13 , , , 40404 5275 14 but but CC 40404 5275 15 the the DT 40404 5275 16 drift drift NN 40404 5275 17 from from IN 40404 5275 18 N N NNP 40404 5275 19 to to IN 40404 5275 20 _ _ NNP 40404 5275 21 m m NNP 40404 5275 22 _ _ NNP 40404 5275 23 is be VBZ 40404 5275 24 so so RB 40404 5275 25 unlike unlike IN 40404 5275 26 that that DT 40404 5275 27 from from IN 40404 5275 28 _ _ NNP 40404 5275 29 m m NNP 40404 5275 30 _ _ NNP 40404 5275 31 to to IN 40404 5275 32 S S NNP 40404 5275 33 that that IN 40404 5275 34 we -PRON- PRP 40404 5275 35 may may MD 40404 5275 36 believe believe VB 40404 5275 37 it -PRON- PRP 40404 5275 38 the the DT 40404 5275 39 product product NN 40404 5275 40 of of IN 40404 5275 41 a a DT 40404 5275 42 distinct distinct JJ 40404 5275 43 ice ice NN 40404 5275 44 invasion invasion NN 40404 5275 45 and and CC 40404 5275 46 deposited deposit VBN 40404 5275 47 during during IN 40404 5275 48 another another DT 40404 5275 49 and and CC 40404 5275 50 far far RB 40404 5275 51 later later JJ 40404 5275 52 glacial glacial JJ 40404 5275 53 stage stage NN 40404 5275 54 . . . 40404 5276 1 The the DT 40404 5276 2 former former JJ 40404 5276 3 drift drift NN 40404 5276 4 is be VBZ 40404 5276 5 very very RB 40404 5276 6 young young JJ 40404 5276 7 , , , 40404 5276 8 for for IN 40404 5276 9 its -PRON- PRP$ 40404 5276 10 drainage drainage NN 40404 5276 11 is be VBZ 40404 5276 12 as as RB 40404 5276 13 yet yet RB 40404 5276 14 immature immature JJ 40404 5276 15 , , , 40404 5276 16 and and CC 40404 5276 17 there there EX 40404 5276 18 are be VBP 40404 5276 19 many many JJ 40404 5276 20 lakes lake NNS 40404 5276 21 and and CC 40404 5276 22 marshes marsh NNS 40404 5276 23 upon upon IN 40404 5276 24 its -PRON- PRP$ 40404 5276 25 surface surface NN 40404 5276 26 ; ; : 40404 5276 27 the the DT 40404 5276 28 latter latter NN 40404 5276 29 is be VBZ 40404 5276 30 far far RB 40404 5276 31 older old JJR 40404 5276 32 , , , 40404 5276 33 for for IN 40404 5276 34 its -PRON- PRP$ 40404 5276 35 surface surface NN 40404 5276 36 has have VBZ 40404 5276 37 been be VBN 40404 5276 38 thoroughly thoroughly RB 40404 5276 39 dissected dissect VBN 40404 5276 40 by by IN 40404 5276 41 its -PRON- PRP$ 40404 5276 42 streams stream NNS 40404 5276 43 . . . 40404 5277 1 The the DT 40404 5277 2 former former JJ 40404 5277 3 is be VBZ 40404 5277 4 but but CC 40404 5277 5 slightly slightly RB 40404 5277 6 weathered weather VBN 40404 5277 7 , , , 40404 5277 8 while while IN 40404 5277 9 the the DT 40404 5277 10 latter latter JJ 40404 5277 11 is be VBZ 40404 5277 12 so so RB 40404 5277 13 old old JJ 40404 5277 14 that that IN 40404 5277 15 it -PRON- PRP 40404 5277 16 is be VBZ 40404 5277 17 deeply deeply RB 40404 5277 18 reddened redden VBN 40404 5277 19 by by IN 40404 5277 20 oxidation oxidation NN 40404 5277 21 and and CC 40404 5277 22 is be VBZ 40404 5277 23 leached leach VBN 40404 5277 24 of of IN 40404 5277 25 its -PRON- PRP$ 40404 5277 26 soluble soluble JJ 40404 5277 27 ingredients ingredient NNS 40404 5277 28 such such JJ 40404 5277 29 as as IN 40404 5277 30 lime lime NN 40404 5277 31 . . . 40404 5278 1 The the DT 40404 5278 2 younger young JJR 40404 5278 3 drift drift NN 40404 5278 4 is be VBZ 40404 5278 5 bordered border VBN 40404 5278 6 by by IN 40404 5278 7 a a DT 40404 5278 8 distinct distinct JJ 40404 5278 9 terminal terminal NN 40404 5278 10 moraine moraine NN 40404 5278 11 , , , 40404 5278 12 while while IN 40404 5278 13 the the DT 40404 5278 14 margin margin NN 40404 5278 15 of of IN 40404 5278 16 the the DT 40404 5278 17 older old JJR 40404 5278 18 drift drift NN 40404 5278 19 is be VBZ 40404 5278 20 not not RB 40404 5278 21 thus thus RB 40404 5278 22 marked mark VBN 40404 5278 23 . . . 40404 5279 1 Moreover moreover RB 40404 5279 2 , , , 40404 5279 3 the the DT 40404 5279 4 two two CD 40404 5279 5 drift drift NN 40404 5279 6 sheets sheet NNS 40404 5279 7 are be VBP 40404 5279 8 somewhat somewhat RB 40404 5279 9 unlike unlike JJ 40404 5279 10 in in IN 40404 5279 11 composition composition NN 40404 5279 12 , , , 40404 5279 13 and and CC 40404 5279 14 the the DT 40404 5279 15 different different JJ 40404 5279 16 proportion proportion NN 40404 5279 17 of of IN 40404 5279 18 pebbles pebble NNS 40404 5279 19 of of IN 40404 5279 20 the the DT 40404 5279 21 various various JJ 40404 5279 22 kinds kind NNS 40404 5279 23 of of IN 40404 5279 24 rocks rock NNS 40404 5279 25 which which WDT 40404 5279 26 they -PRON- PRP 40404 5279 27 contain contain VBP 40404 5279 28 shows show VBZ 40404 5279 29 that that IN 40404 5279 30 their -PRON- PRP$ 40404 5279 31 respective respective JJ 40404 5279 32 glaciers glacier NNS 40404 5279 33 followed follow VBD 40404 5279 34 different different JJ 40404 5279 35 tracks track NNS 40404 5279 36 and and CC 40404 5279 37 gathered gather VBD 40404 5279 38 their -PRON- PRP$ 40404 5279 39 loads load NNS 40404 5279 40 from from IN 40404 5279 41 different different JJ 40404 5279 42 regions region NNS 40404 5279 43 . . . 40404 5280 1 Again again RB 40404 5280 2 , , , 40404 5280 3 in in IN 40404 5280 4 places place NNS 40404 5280 5 beneath beneath IN 40404 5280 6 the the DT 40404 5280 7 younger young JJR 40404 5280 8 drift drift NN 40404 5280 9 there there EX 40404 5280 10 is be VBZ 40404 5280 11 found find VBN 40404 5280 12 the the DT 40404 5280 13 buried bury VBN 40404 5280 14 land land NN 40404 5280 15 surface surface NN 40404 5280 16 of of IN 40404 5280 17 an an DT 40404 5280 18 older old JJR 40404 5280 19 drift drift NN 40404 5280 20 with with IN 40404 5280 21 old old JJ 40404 5280 22 soils soil NNS 40404 5280 23 , , , 40404 5280 24 forest forest NN 40404 5280 25 grounds ground NNS 40404 5280 26 , , , 40404 5280 27 and and CC 40404 5280 28 vegetable vegetable NN 40404 5280 29 deposits deposit NNS 40404 5280 30 , , , 40404 5280 31 containing contain VBG 40404 5280 32 the the DT 40404 5280 33 remains remain NNS 40404 5280 34 of of IN 40404 5280 35 animals animal NNS 40404 5280 36 and and CC 40404 5280 37 plants plant NNS 40404 5280 38 , , , 40404 5280 39 which which WDT 40404 5280 40 tell tell VBP 40404 5280 41 of of IN 40404 5280 42 the the DT 40404 5280 43 climate climate NN 40404 5280 44 of of IN 40404 5280 45 the the DT 40404 5280 46 interglacial interglacial JJ 40404 5280 47 stage stage NN 40404 5280 48 in in IN 40404 5280 49 which which WDT 40404 5280 50 they -PRON- PRP 40404 5280 51 lived live VBD 40404 5280 52 . . . 40404 5281 1 By by IN 40404 5281 2 such such JJ 40404 5281 3 differences difference NNS 40404 5281 4 as as IN 40404 5281 5 these these DT 40404 5281 6 the the DT 40404 5281 7 following follow VBG 40404 5281 8 drift drift NN 40404 5281 9 sheets sheet NNS 40404 5281 10 have have VBP 40404 5281 11 been be VBN 40404 5281 12 made make VBN 40404 5281 13 out out RP 40404 5281 14 in in IN 40404 5281 15 America America NNP 40404 5281 16 , , , 40404 5281 17 and and CC 40404 5281 18 similar similar JJ 40404 5281 19 subdivisions subdivision NNS 40404 5281 20 have have VBP 40404 5281 21 been be VBN 40404 5281 22 recognized recognize VBN 40404 5281 23 in in IN 40404 5281 24 Europe Europe NNP 40404 5281 25 . . . 40404 5282 1 5 5 CD 40404 5282 2 The the DT 40404 5282 3 Wisconsin Wisconsin NNP 40404 5282 4 formation formation NN 40404 5282 5           _SP 40404 5282 6 4 4 CD 40404 5282 7 The the DT 40404 5282 8 Iowan Iowan NNP 40404 5282 9 formation formation NN 40404 5282 10           _SP 40404 5282 11 3 3 CD 40404 5282 12 The the DT 40404 5282 13 Illinoian illinoian JJ 40404 5282 14 formation formation NN 40404 5282 15           _SP 40404 5282 16 2 2 CD 40404 5282 17 The the DT 40404 5282 18 Kansan Kansan NNP 40404 5282 19 formation formation NN 40404 5282 20           _SP 40404 5282 21 1 1 CD 40404 5282 22 The the DT 40404 5282 23 pre pre JJ 40404 5282 24 - - JJ 40404 5282 25 Kansan kansan JJ 40404 5282 26 or or CC 40404 5282 27 Jerseyan Jerseyan NNP 40404 5282 28 formation formation NN 40404 5282 29 In in IN 40404 5282 30 New New NNP 40404 5282 31 Jersey Jersey NNP 40404 5282 32 and and CC 40404 5282 33 Pennsylvania Pennsylvania NNP 40404 5282 34 the the DT 40404 5282 35 edge edge NN 40404 5282 36 of of IN 40404 5282 37 a a DT 40404 5282 38 deeply deeply RB 40404 5282 39 weathered weather VBN 40404 5282 40 and and CC 40404 5282 41 eroded erode VBN 40404 5282 42 drift drift NN 40404 5282 43 sheet sheet NN 40404 5282 44 , , , 40404 5282 45 the the DT 40404 5282 46 Jerseyan Jerseyan NNP 40404 5282 47 , , , 40404 5282 48 extends extend VBZ 40404 5282 49 beyond beyond IN 40404 5282 50 the the DT 40404 5282 51 limits limit NNS 40404 5282 52 of of IN 40404 5282 53 a a DT 40404 5282 54 much much RB 40404 5282 55 younger young JJR 40404 5282 56 overlying overlying NN 40404 5282 57 drift drift NN 40404 5282 58 . . . 40404 5283 1 It -PRON- PRP 40404 5283 2 may may MD 40404 5283 3 be be VB 40404 5283 4 the the DT 40404 5283 5 equivalent equivalent NN 40404 5283 6 of of IN 40404 5283 7 a a DT 40404 5283 8 deep deep RB 40404 5283 9 - - HYPH 40404 5283 10 buried bury VBN 40404 5283 11 basal basal NNP 40404 5283 12 drift drift NNP 40404 5283 13 sheet sheet NN 40404 5283 14 found find VBN 40404 5283 15 in in IN 40404 5283 16 the the DT 40404 5283 17 Mississippi Mississippi NNP 40404 5283 18 valley valley NN 40404 5283 19 beneath beneath IN 40404 5283 20 the the DT 40404 5283 21 Kansan Kansan NNP 40404 5283 22 and and CC 40404 5283 23 parted part VBN 40404 5283 24 from from IN 40404 5283 25 it -PRON- PRP 40404 5283 26 by by IN 40404 5283 27 peat peat JJ 40404 5283 28 , , , 40404 5283 29 old old JJ 40404 5283 30 soil soil NN 40404 5283 31 , , , 40404 5283 32 and and CC 40404 5283 33 gravel gravel NN 40404 5283 34 beds bed NNS 40404 5283 35 . . . 40404 5284 1 The the DT 40404 5284 2 two two CD 40404 5284 3 succeeding succeed VBG 40404 5284 4 stages stage NNS 40404 5284 5 mark mark VBP 40404 5284 6 the the DT 40404 5284 7 greatest great JJS 40404 5284 8 snowfall snowfall NN 40404 5284 9 of of IN 40404 5284 10 the the DT 40404 5284 11 Glacial Glacial NNP 40404 5284 12 epoch epoch NN 40404 5284 13 . . . 40404 5285 1 In in IN 40404 5285 2 Kansan Kansan NNP 40404 5285 3 times time NNS 40404 5285 4 the the DT 40404 5285 5 Keewatin Keewatin NNP 40404 5285 6 ice ice NN 40404 5285 7 field field NN 40404 5285 8 slowly slowly RB 40404 5285 9 grew grow VBD 40404 5285 10 southward southward RB 40404 5285 11 until until IN 40404 5285 12 it -PRON- PRP 40404 5285 13 reached reach VBD 40404 5285 14 fifteen fifteen CD 40404 5285 15 hundred hundred CD 40404 5285 16 miles mile NNS 40404 5285 17 from from IN 40404 5285 18 its -PRON- PRP$ 40404 5285 19 center center NN 40404 5285 20 of of IN 40404 5285 21 dispersion dispersion NN 40404 5285 22 and and CC 40404 5285 23 extended extend VBD 40404 5285 24 from from IN 40404 5285 25 the the DT 40404 5285 26 Arctic Arctic NNP 40404 5285 27 Ocean Ocean NNP 40404 5285 28 to to IN 40404 5285 29 northeastern northeastern JJ 40404 5285 30 Kansas Kansas NNP 40404 5285 31 . . . 40404 5286 1 In in IN 40404 5286 2 the the DT 40404 5286 3 Illinoian illinoian JJ 40404 5286 4 stage stage NN 40404 5286 5 the the DT 40404 5286 6 Labrador Labrador NNP 40404 5286 7 ice ice NN 40404 5286 8 field field NN 40404 5286 9 stretched stretch VBD 40404 5286 10 from from IN 40404 5286 11 Hudson Hudson NNP 40404 5286 12 Straits Straits NNPS 40404 5286 13 nearly nearly RB 40404 5286 14 to to IN 40404 5286 15 the the DT 40404 5286 16 Ohio Ohio NNP 40404 5286 17 River River NNP 40404 5286 18 in in IN 40404 5286 19 Illinois Illinois NNP 40404 5286 20 . . . 40404 5287 1 In in IN 40404 5287 2 the the DT 40404 5287 3 Iowan Iowan NNP 40404 5287 4 and and CC 40404 5287 5 the the DT 40404 5287 6 Wisconsin Wisconsin NNP 40404 5287 7 , , , 40404 5287 8 the the DT 40404 5287 9 closing closing NN 40404 5287 10 stages stage NNS 40404 5287 11 of of IN 40404 5287 12 the the DT 40404 5287 13 Glacial Glacial NNP 40404 5287 14 epoch epoch NN 40404 5287 15 , , , 40404 5287 16 the the DT 40404 5287 17 readvancing readvance VBG 40404 5287 18 ice ice NN 40404 5287 19 fields field NNS 40404 5287 20 fell fall VBD 40404 5287 21 far far RB 40404 5287 22 short short RB 40404 5287 23 of of IN 40404 5287 24 their -PRON- PRP$ 40404 5287 25 former former JJ 40404 5287 26 limits limit NNS 40404 5287 27 in in IN 40404 5287 28 the the DT 40404 5287 29 Mississippi Mississippi NNP 40404 5287 30 valley valley NN 40404 5287 31 , , , 40404 5287 32 but but CC 40404 5287 33 in in IN 40404 5287 34 the the DT 40404 5287 35 eastern eastern JJ 40404 5287 36 states state VBZ 40404 5287 37 the the DT 40404 5287 38 Labrador Labrador NNP 40404 5287 39 ice ice NN 40404 5287 40 field field NN 40404 5287 41 during during IN 40404 5287 42 Wisconsin Wisconsin NNP 40404 5287 43 times time NNS 40404 5287 44 overrode override VBD 40404 5287 45 for for IN 40404 5287 46 the the DT 40404 5287 47 most most JJS 40404 5287 48 part part NN 40404 5287 49 all all DT 40404 5287 50 earlier early JJR 40404 5287 51 deposits deposit NNS 40404 5287 52 , , , 40404 5287 53 and and CC 40404 5287 54 , , , 40404 5287 55 covering cover VBG 40404 5287 56 New New NNP 40404 5287 57 England England NNP 40404 5287 58 , , , 40404 5287 59 probably probably RB 40404 5287 60 met meet VBD 40404 5287 61 the the DT 40404 5287 62 ocean ocean NN 40404 5287 63 in in IN 40404 5287 64 a a DT 40404 5287 65 continuous continuous JJ 40404 5287 66 wall wall NN 40404 5287 67 of of IN 40404 5287 68 ice ice NN 40404 5287 69 which which WDT 40404 5287 70 set set VBD 40404 5287 71 its -PRON- PRP$ 40404 5287 72 bergs berg NNS 40404 5287 73 afloat afloat RB 40404 5287 74 from from IN 40404 5287 75 Massachusetts Massachusetts NNP 40404 5287 76 to to IN 40404 5287 77 northern northern JJ 40404 5287 78 Labrador Labrador NNP 40404 5287 79 . . . 40404 5288 1 We -PRON- PRP 40404 5288 2 select select VBP 40404 5288 3 for for IN 40404 5288 4 detailed detailed JJ 40404 5288 5 description description NN 40404 5288 6 the the DT 40404 5288 7 Kansan Kansan NNP 40404 5288 8 and and CC 40404 5288 9 the the DT 40404 5288 10 Wisconsin Wisconsin NNP 40404 5288 11 formations formation NNS 40404 5288 12 as as IN 40404 5288 13 representatives representative NNS 40404 5288 14 , , , 40404 5288 15 the the DT 40404 5288 16 one one CD 40404 5288 17 of of IN 40404 5288 18 the the DT 40404 5288 19 older old JJR 40404 5288 20 and and CC 40404 5288 21 the the DT 40404 5288 22 other other JJ 40404 5288 23 of of IN 40404 5288 24 the the DT 40404 5288 25 younger young JJR 40404 5288 26 drift drift NN 40404 5288 27 sheets sheet NNS 40404 5288 28 . . . 40404 5289 1 [ [ -LRB- 40404 5289 2 Illustration illustration NN 40404 5289 3 : : : 40404 5289 4 Fig Fig NNP 40404 5289 5 . . . 40404 5290 1 362 362 CD 40404 5290 2 . . . 40404 5291 1 Photograph Photograph NNP 40404 5291 2 of of IN 40404 5291 3 Relief Relief NNP 40404 5291 4 Map Map NNP 40404 5291 5 of of IN 40404 5291 6 the the DT 40404 5291 7 United United NNP 40404 5291 8 States States NNP 40404 5291 9 at at IN 40404 5291 10 the the DT 40404 5291 11 Time Time NNP 40404 5291 12 of of IN 40404 5291 13 the the DT 40404 5291 14 Wisconsin Wisconsin NNP 40404 5291 15 Ice Ice NNP 40404 5291 16 Invasion Invasion NNP 40404 5291 17 By by IN 40404 5291 18 the the DT 40404 5291 19 courtesy courtesy NN 40404 5291 20 of of IN 40404 5291 21 E. E. NNP 40404 5291 22 E. E. NNP 40404 5291 23 Howell Howell NNP 40404 5291 24 , , , 40404 5291 25 Washington Washington NNP 40404 5291 26 , , , 40404 5291 27 D.C. D.C. NNP 40404 5291 28 ] ] -RRB- 40404 5291 29 = = NFP 40404 5291 30 The the DT 40404 5291 31 Kansan Kansan NNP 40404 5291 32 formation.= formation.= CD 40404 5291 33 The the DT 40404 5291 34 Kansan Kansan NNP 40404 5291 35 drift drift NN 40404 5291 36 consists consist VBZ 40404 5291 37 for for IN 40404 5291 38 the the DT 40404 5291 39 most most JJS 40404 5291 40 part part NN 40404 5291 41 of of IN 40404 5291 42 a a DT 40404 5291 43 sheet sheet NN 40404 5291 44 of of IN 40404 5291 45 clayey clayey NN 40404 5291 46 till till IN 40404 5291 47 carrying carry VBG 40404 5291 48 smaller small JJR 40404 5291 49 bowlders bowlder NNS 40404 5291 50 than than IN 40404 5291 51 the the DT 40404 5291 52 later later JJ 40404 5291 53 drift drift NN 40404 5291 54 . . . 40404 5292 1 Few few JJ 40404 5292 2 traces trace NNS 40404 5292 3 of of IN 40404 5292 4 drumlins drumlin NNS 40404 5292 5 , , , 40404 5292 6 kames kame NNS 40404 5292 7 , , , 40404 5292 8 or or CC 40404 5292 9 terminal terminal JJ 40404 5292 10 moraines moraine NNS 40404 5292 11 are be VBP 40404 5292 12 found find VBN 40404 5292 13 upon upon IN 40404 5292 14 the the DT 40404 5292 15 Kansan Kansan NNP 40404 5292 16 drift drift NN 40404 5292 17 , , , 40404 5292 18 and and CC 40404 5292 19 where where WRB 40404 5292 20 thick thick JJ 40404 5292 21 enough enough RB 40404 5292 22 to to TO 40404 5292 23 mask mask VB 40404 5292 24 the the DT 40404 5292 25 preexisting preexisting NN 40404 5292 26 surface surface NN 40404 5292 27 , , , 40404 5292 28 it -PRON- PRP 40404 5292 29 seems seem VBZ 40404 5292 30 to to TO 40404 5292 31 have have VB 40404 5292 32 been be VBN 40404 5292 33 spread spread VBN 40404 5292 34 originally originally RB 40404 5292 35 in in IN 40404 5292 36 level level NN 40404 5292 37 plains plain NNS 40404 5292 38 of of IN 40404 5292 39 till till IN 40404 5292 40 . . . 40404 5293 1 The the DT 40404 5293 2 initial initial JJ 40404 5293 3 Kansan Kansan NNP 40404 5293 4 plain plain NN 40404 5293 5 has have VBZ 40404 5293 6 been be VBN 40404 5293 7 worn wear VBN 40404 5293 8 by by IN 40404 5293 9 running run VBG 40404 5293 10 water water NN 40404 5293 11 until until IN 40404 5293 12 there there EX 40404 5293 13 are be VBP 40404 5293 14 now now RB 40404 5293 15 left leave VBN 40404 5293 16 only only RB 40404 5293 17 isolated isolated JJ 40404 5293 18 patches patch NNS 40404 5293 19 and and CC 40404 5293 20 the the DT 40404 5293 21 narrow narrow JJ 40404 5293 22 strips strip NNS 40404 5293 23 and and CC 40404 5293 24 crests crest NNS 40404 5293 25 of of IN 40404 5293 26 the the DT 40404 5293 27 divides divide NNS 40404 5293 28 , , , 40404 5293 29 which which WDT 40404 5293 30 still still RB 40404 5293 31 rise rise VBP 40404 5293 32 to to IN 40404 5293 33 the the DT 40404 5293 34 ancient ancient JJ 40404 5293 35 level level NN 40404 5293 36 . . . 40404 5294 1 The the DT 40404 5294 2 valleys valley NNS 40404 5294 3 of of IN 40404 5294 4 the the DT 40404 5294 5 larger large JJR 40404 5294 6 streams stream NNS 40404 5294 7 have have VBP 40404 5294 8 been be VBN 40404 5294 9 opened open VBN 40404 5294 10 wide wide RB 40404 5294 11 . . . 40404 5295 1 Their -PRON- PRP$ 40404 5295 2 well well RB 40404 5295 3 - - HYPH 40404 5295 4 developed develop VBN 40404 5295 5 tributaries tributary NNS 40404 5295 6 have have VBP 40404 5295 7 carved carve VBN 40404 5295 8 nearly nearly RB 40404 5295 9 the the DT 40404 5295 10 entire entire JJ 40404 5295 11 plain plain NN 40404 5295 12 to to IN 40404 5295 13 valley valley NN 40404 5295 14 slopes slope NNS 40404 5295 15 ( ( -LRB- 40404 5295 16 Figs fig NNS 40404 5295 17 . . . 40404 5296 1 50 50 CD 40404 5296 2 B b NN 40404 5296 3 , , , 40404 5296 4 and and CC 40404 5296 5 59 59 CD 40404 5296 6 ) ) -RRB- 40404 5296 7 . . . 40404 5297 1 The the DT 40404 5297 2 lakes lake NNS 40404 5297 3 and and CC 40404 5297 4 marshes marsh NNS 40404 5297 5 which which WDT 40404 5297 6 once once RB 40404 5297 7 marked mark VBD 40404 5297 8 the the DT 40404 5297 9 infancy infancy NN 40404 5297 10 of of IN 40404 5297 11 the the DT 40404 5297 12 region region NN 40404 5297 13 have have VBP 40404 5297 14 long long JJ 40404 5297 15 since since IN 40404 5297 16 been be VBN 40404 5297 17 effaced efface VBN 40404 5297 18 . . . 40404 5298 1 The the DT 40404 5298 2 drift drift NN 40404 5298 3 is be VBZ 40404 5298 4 also also RB 40404 5298 5 deeply deeply RB 40404 5298 6 weathered weather VBN 40404 5298 7 . . . 40404 5299 1 The the DT 40404 5299 2 till till NN 40404 5299 3 , , , 40404 5299 4 originally originally RB 40404 5299 5 blue blue JJ 40404 5299 6 in in IN 40404 5299 7 color color NN 40404 5299 8 , , , 40404 5299 9 has have VBZ 40404 5299 10 been be VBN 40404 5299 11 yellowed yellow VBN 40404 5299 12 by by IN 40404 5299 13 oxidation oxidation NN 40404 5299 14 to to IN 40404 5299 15 a a DT 40404 5299 16 depth depth NN 40404 5299 17 of of IN 40404 5299 18 ten ten CD 40404 5299 19 and and CC 40404 5299 20 twenty twenty CD 40404 5299 21 feet foot NNS 40404 5299 22 and and CC 40404 5299 23 even even RB 40404 5299 24 more more RBR 40404 5299 25 , , , 40404 5299 26 and and CC 40404 5299 27 its -PRON- PRP$ 40404 5299 28 surface surface NN 40404 5299 29 is be VBZ 40404 5299 30 sometimes sometimes RB 40404 5299 31 rusted rust VBN 40404 5299 32 to to IN 40404 5299 33 terra terra NNP 40404 5299 34 - - HYPH 40404 5299 35 cotta cotta NNP 40404 5299 36 red red NN 40404 5299 37 . . . 40404 5300 1 To to IN 40404 5300 2 a a DT 40404 5300 3 somewhat somewhat RB 40404 5300 4 less less JJR 40404 5300 5 depth depth NN 40404 5300 6 it -PRON- PRP 40404 5300 7 has have VBZ 40404 5300 8 been be VBN 40404 5300 9 leached leach VBN 40404 5300 10 of of IN 40404 5300 11 its -PRON- PRP$ 40404 5300 12 lime lime NN 40404 5300 13 and and CC 40404 5300 14 other other JJ 40404 5300 15 soluble soluble JJ 40404 5300 16 ingredients ingredient NNS 40404 5300 17 . . . 40404 5301 1 In in IN 40404 5301 2 the the DT 40404 5301 3 weathered weather VBN 40404 5301 4 zone zone NN 40404 5301 5 its -PRON- PRP$ 40404 5301 6 pebbles pebble NNS 40404 5301 7 , , , 40404 5301 8 especially especially RB 40404 5301 9 where where WRB 40404 5301 10 the the DT 40404 5301 11 till till NN 40404 5301 12 is be VBZ 40404 5301 13 loose loose JJ 40404 5301 14 in in IN 40404 5301 15 texture texture NN 40404 5301 16 , , , 40404 5301 17 are be VBP 40404 5301 18 sometimes sometimes RB 40404 5301 19 so so RB 40404 5301 20 rotted rot VBN 40404 5301 21 that that IN 40404 5301 22 granites granite NNS 40404 5301 23 may may MD 40404 5301 24 be be VB 40404 5301 25 crumbled crumble VBN 40404 5301 26 with with IN 40404 5301 27 the the DT 40404 5301 28 fingers finger NNS 40404 5301 29 . . . 40404 5302 1 The the DT 40404 5302 2 Kansan Kansan NNP 40404 5302 3 drift drift NN 40404 5302 4 is be VBZ 40404 5302 5 therefore therefore RB 40404 5302 6 old old JJ 40404 5302 7 . . . 40404 5303 1 [ [ -LRB- 40404 5303 2 Illustration illustration NN 40404 5303 3 : : : 40404 5303 4 Fig Fig NNP 40404 5303 5 . . . 40404 5304 1 363 363 CD 40404 5304 2 . . . 40404 5305 1 Plain plain JJ 40404 5305 2 of of IN 40404 5305 3 Wisconsin Wisconsin NNP 40404 5305 4 Drift Drift NNP 40404 5305 5 , , , 40404 5305 6 Iowa Iowa NNP 40404 5305 7 ] ] -RRB- 40404 5305 8 = = NFP 40404 5305 9 The the DT 40404 5305 10 Wisconsin Wisconsin NNP 40404 5305 11 formation.= formation.= CD 40404 5305 12 The the DT 40404 5305 13 Wisconsin Wisconsin NNP 40404 5305 14 drift drift NN 40404 5305 15 sheet sheet NN 40404 5305 16 is be VBZ 40404 5305 17 but but CC 40404 5305 18 little little JJ 40404 5305 19 weathered weathered JJ 40404 5305 20 and and CC 40404 5305 21 eroded erode VBN 40404 5305 22 , , , 40404 5305 23 and and CC 40404 5305 24 therefore therefore RB 40404 5305 25 is be VBZ 40404 5305 26 extremely extremely RB 40404 5305 27 young young JJ 40404 5305 28 . . . 40404 5306 1 Oxidation oxidation NN 40404 5306 2 has have VBZ 40404 5306 3 effected effect VBN 40404 5306 4 it -PRON- PRP 40404 5306 5 but but CC 40404 5306 6 slightly slightly RB 40404 5306 7 , , , 40404 5306 8 and and CC 40404 5306 9 lime lime NN 40404 5306 10 and and CC 40404 5306 11 other other JJ 40404 5306 12 soluble soluble JJ 40404 5306 13 plant plant NN 40404 5306 14 foods food NNS 40404 5306 15 remain remain VBP 40404 5306 16 undissolved undissolved JJ 40404 5306 17 even even RB 40404 5306 18 at at IN 40404 5306 19 the the DT 40404 5306 20 grass grass NN 40404 5306 21 roots root NNS 40404 5306 22 . . . 40404 5307 1 Its -PRON- PRP$ 40404 5307 2 river river NN 40404 5307 3 systems system NNS 40404 5307 4 are be VBP 40404 5307 5 still still RB 40404 5307 6 in in IN 40404 5307 7 their -PRON- PRP$ 40404 5307 8 infancy infancy NN 40404 5307 9 ( ( -LRB- 40404 5307 10 Fig fig NN 40404 5307 11 . . . 40404 5308 1 50 50 CD 40404 5308 2 , , , 40404 5308 3 A a NN 40404 5308 4 ) ) -RRB- 40404 5308 5 . . . 40404 5309 1 Swamps swamp NNS 40404 5309 2 and and CC 40404 5309 3 peat peat NN 40404 5309 4 bogs bog NNS 40404 5309 5 are be VBP 40404 5309 6 abundant abundant JJ 40404 5309 7 on on IN 40404 5309 8 its -PRON- PRP$ 40404 5309 9 undrained undrained JJ 40404 5309 10 surface surface NN 40404 5309 11 , , , 40404 5309 12 and and CC 40404 5309 13 to to IN 40404 5309 14 this this DT 40404 5309 15 drift drift NN 40404 5309 16 sheet sheet NN 40404 5309 17 belong belong VBP 40404 5309 18 the the DT 40404 5309 19 lake lake NNP 40404 5309 20 lands land NNS 40404 5309 21 of of IN 40404 5309 22 our -PRON- PRP$ 40404 5309 23 northern northern JJ 40404 5309 24 states state NNS 40404 5309 25 and and CC 40404 5309 26 of of IN 40404 5309 27 the the DT 40404 5309 28 Laurentian laurentian JJ 40404 5309 29 peneplain peneplain NN 40404 5309 30 of of IN 40404 5309 31 Canada Canada NNP 40404 5309 32 . . . 40404 5310 1 The the DT 40404 5310 2 lake lake NN 40404 5310 3 basins basin NNS 40404 5310 4 of of IN 40404 5310 5 the the DT 40404 5310 6 Wisconsin Wisconsin NNP 40404 5310 7 drift drift NN 40404 5310 8 are be VBP 40404 5310 9 of of IN 40404 5310 10 several several JJ 40404 5310 11 different different JJ 40404 5310 12 classes class NNS 40404 5310 13 . . . 40404 5311 1 Many many JJ 40404 5311 2 are be VBP 40404 5311 3 shallow shallow JJ 40404 5311 4 sags sag NNS 40404 5311 5 in in IN 40404 5311 6 the the DT 40404 5311 7 ground ground NN 40404 5311 8 moraine moraine VBP 40404 5311 9 . . . 40404 5312 1 Still still RB 40404 5312 2 more more RBR 40404 5312 3 numerous numerous JJ 40404 5312 4 are be VBP 40404 5312 5 the the DT 40404 5312 6 lakes lake NNS 40404 5312 7 set set VBN 40404 5312 8 in in IN 40404 5312 9 hollows hollow NNS 40404 5312 10 among among IN 40404 5312 11 the the DT 40404 5312 12 hills hill NNS 40404 5312 13 of of IN 40404 5312 14 the the DT 40404 5312 15 terminal terminal JJ 40404 5312 16 moraines moraine NNS 40404 5312 17 ; ; , 40404 5312 18 such such JJ 40404 5312 19 as as IN 40404 5312 20 the the DT 40404 5312 21 thousands thousand NNS 40404 5312 22 of of IN 40404 5312 23 lakelets lakelet NNS 40404 5312 24 of of IN 40404 5312 25 eastern eastern JJ 40404 5312 26 Massachusetts Massachusetts NNP 40404 5312 27 . . . 40404 5313 1 Indeed indeed RB 40404 5313 2 , , , 40404 5313 3 the the DT 40404 5313 4 terminal terminal JJ 40404 5313 5 moraines moraine NNS 40404 5313 6 of of IN 40404 5313 7 the the DT 40404 5313 8 Wisconsin Wisconsin NNP 40404 5313 9 drift drift NN 40404 5313 10 may may MD 40404 5313 11 often often RB 40404 5313 12 be be VB 40404 5313 13 roughly roughly RB 40404 5313 14 traced trace VBN 40404 5313 15 on on IN 40404 5313 16 maps map NNS 40404 5313 17 by by IN 40404 5313 18 means mean NNS 40404 5313 19 of of IN 40404 5313 20 belts belt NNS 40404 5313 21 of of IN 40404 5313 22 lakes lake NNS 40404 5313 23 and and CC 40404 5313 24 ponds pond NNS 40404 5313 25 . . . 40404 5314 1 Some some DT 40404 5314 2 lakes lake NNS 40404 5314 3 are be VBP 40404 5314 4 due due JJ 40404 5314 5 to to IN 40404 5314 6 the the DT 40404 5314 7 blockade blockade NN 40404 5314 8 of of IN 40404 5314 9 ancient ancient JJ 40404 5314 10 valleys valley NNS 40404 5314 11 by by IN 40404 5314 12 morainic morainic NNP 40404 5314 13 débris débris NNP 40404 5314 14 , , , 40404 5314 15 and and CC 40404 5314 16 this this DT 40404 5314 17 class class NN 40404 5314 18 includes include VBZ 40404 5314 19 many many JJ 40404 5314 20 of of IN 40404 5314 21 the the DT 40404 5314 22 lakes lake NNS 40404 5314 23 of of IN 40404 5314 24 the the DT 40404 5314 25 Adirondacks Adirondacks NNPS 40404 5314 26 , , , 40404 5314 27 the the DT 40404 5314 28 mountain mountain NN 40404 5314 29 regions region NNS 40404 5314 30 of of IN 40404 5314 31 New New NNP 40404 5314 32 England England NNP 40404 5314 33 , , , 40404 5314 34 and and CC 40404 5314 35 the the DT 40404 5314 36 Laurentian laurentian JJ 40404 5314 37 area area NN 40404 5314 38 . . . 40404 5315 1 Still still RB 40404 5315 2 other other JJ 40404 5315 3 lakes lake NNS 40404 5315 4 rest rest VBP 40404 5315 5 in in IN 40404 5315 6 rock rock NN 40404 5315 7 basins basin NNS 40404 5315 8 scooped scoop VBD 40404 5315 9 out out RP 40404 5315 10 by by IN 40404 5315 11 glaciers glacier NNS 40404 5315 12 . . . 40404 5316 1 In in IN 40404 5316 2 many many JJ 40404 5316 3 cases case NNS 40404 5316 4 lakes lake NNS 40404 5316 5 are be VBP 40404 5316 6 due due JJ 40404 5316 7 to to IN 40404 5316 8 more more JJR 40404 5316 9 than than IN 40404 5316 10 one one CD 40404 5316 11 cause cause NN 40404 5316 12 , , , 40404 5316 13 as as IN 40404 5316 14 where where WRB 40404 5316 15 preglacial preglacial JJ 40404 5316 16 valleys valley NNS 40404 5316 17 have have VBP 40404 5316 18 both both DT 40404 5316 19 been be VBN 40404 5316 20 basined basine VBN 40404 5316 21 by by IN 40404 5316 22 the the DT 40404 5316 23 ice ice NN 40404 5316 24 and and CC 40404 5316 25 blockaded blockade VBN 40404 5316 26 by by IN 40404 5316 27 its -PRON- PRP$ 40404 5316 28 moraines moraine NNS 40404 5316 29 . . . 40404 5317 1 The the DT 40404 5317 2 Finger Finger NNP 40404 5317 3 lakes lake NNS 40404 5317 4 of of IN 40404 5317 5 New New NNP 40404 5317 6 York York NNP 40404 5317 7 , , , 40404 5317 8 for for IN 40404 5317 9 example example NN 40404 5317 10 , , , 40404 5317 11 occupy occupy VBP 40404 5317 12 such such JJ 40404 5317 13 glacial glacial JJ 40404 5317 14 troughs trough NNS 40404 5317 15 . . . 40404 5318 1 Massive Massive NNP 40404 5318 2 _ _ NNP 40404 5318 3 terminal terminal NN 40404 5318 4 moraines moraine NNS 40404 5318 5 _ _ NNP 40404 5318 6 , , , 40404 5318 7 which which WDT 40404 5318 8 mark mark VBP 40404 5318 9 the the DT 40404 5318 10 farthest farth JJS 40404 5318 11 limits limit NNS 40404 5318 12 to to TO 40404 5318 13 which which WDT 40404 5318 14 the the DT 40404 5318 15 Wisconsin Wisconsin NNP 40404 5318 16 ice ice NN 40404 5318 17 advanced advance VBD 40404 5318 18 , , , 40404 5318 19 have have VBP 40404 5318 20 been be VBN 40404 5318 21 traced trace VBN 40404 5318 22 from from IN 40404 5318 23 Cape Cape NNP 40404 5318 24 Cod Cod NNP 40404 5318 25 and and CC 40404 5318 26 the the DT 40404 5318 27 islands island NNS 40404 5318 28 south south RB 40404 5318 29 of of IN 40404 5318 30 New New NNP 40404 5318 31 England England NNP 40404 5318 32 , , , 40404 5318 33 across across IN 40404 5318 34 the the DT 40404 5318 35 Appalachians Appalachians NNPS 40404 5318 36 and and CC 40404 5318 37 the the DT 40404 5318 38 Mississippi Mississippi NNP 40404 5318 39 valley valley NN 40404 5318 40 , , , 40404 5318 41 through through IN 40404 5318 42 the the DT 40404 5318 43 Dakotas Dakotas NNP 40404 5318 44 , , , 40404 5318 45 and and CC 40404 5318 46 far far RB 40404 5318 47 to to IN 40404 5318 48 the the DT 40404 5318 49 north north NN 40404 5318 50 over over IN 40404 5318 51 the the DT 40404 5318 52 plains plain NNS 40404 5318 53 of of IN 40404 5318 54 British British NNP 40404 5318 55 America America NNP 40404 5318 56 . . . 40404 5319 1 Where where WRB 40404 5319 2 the the DT 40404 5319 3 ice ice NN 40404 5319 4 halted halt VBD 40404 5319 5 for for IN 40404 5319 6 a a DT 40404 5319 7 time time NN 40404 5319 8 in in IN 40404 5319 9 its -PRON- PRP$ 40404 5319 10 general general JJ 40404 5319 11 retreat retreat NN 40404 5319 12 , , , 40404 5319 13 it -PRON- PRP 40404 5319 14 left leave VBD 40404 5319 15 _ _ NNP 40404 5319 16 recessional recessional JJ 40404 5319 17 moraines moraine NNS 40404 5319 18 _ _ NNP 40404 5319 19 , , , 40404 5319 20 as as IN 40404 5319 21 this this DT 40404 5319 22 variety variety NN 40404 5319 23 of of IN 40404 5319 24 the the DT 40404 5319 25 terminal terminal JJ 40404 5319 26 moraine moraine NN 40404 5319 27 is be VBZ 40404 5319 28 called call VBN 40404 5319 29 . . . 40404 5320 1 The the DT 40404 5320 2 moraines moraine NNS 40404 5320 3 of of IN 40404 5320 4 the the DT 40404 5320 5 Wisconsin Wisconsin NNP 40404 5320 6 drift drift NN 40404 5320 7 lie lie VBP 40404 5320 8 upon upon IN 40404 5320 9 the the DT 40404 5320 10 country country NN 40404 5320 11 like like IN 40404 5320 12 great great JJ 40404 5320 13 festoons festoon NNS 40404 5320 14 , , , 40404 5320 15 each each DT 40404 5320 16 series series NN 40404 5320 17 of of IN 40404 5320 18 concentric concentric JJ 40404 5320 19 loops loop NNS 40404 5320 20 marking mark VBG 40404 5320 21 the the DT 40404 5320 22 utmost utmost JJ 40404 5320 23 advance advance NN 40404 5320 24 of of IN 40404 5320 25 broad broad JJ 40404 5320 26 lobes lobe NNS 40404 5320 27 of of IN 40404 5320 28 the the DT 40404 5320 29 ice ice NN 40404 5320 30 margin margin NN 40404 5320 31 and and CC 40404 5320 32 the the DT 40404 5320 33 various various JJ 40404 5320 34 pauses pause NNS 40404 5320 35 in in IN 40404 5320 36 their -PRON- PRP$ 40404 5320 37 recession recession NN 40404 5320 38 . . . 40404 5321 1 Behind behind IN 40404 5321 2 the the DT 40404 5321 3 terminal terminal JJ 40404 5321 4 moraines moraine NNS 40404 5321 5 lie lie VBP 40404 5321 6 wide wide RB 40404 5321 7 till till IN 40404 5321 8 plains plain NNS 40404 5321 9 , , , 40404 5321 10 in in IN 40404 5321 11 places place NNS 40404 5321 12 studded stud VBN 40404 5321 13 thickly thickly RB 40404 5321 14 with with IN 40404 5321 15 drumlins drumlin NNS 40404 5321 16 , , , 40404 5321 17 or or CC 40404 5321 18 ridged ridge VBN 40404 5321 19 with with IN 40404 5321 20 an an DT 40404 5321 21 occasional occasional JJ 40404 5321 22 esker esker NN 40404 5321 23 . . . 40404 5322 1 Great great JJ 40404 5322 2 outwash outwash NN 40404 5322 3 plains plain NNS 40404 5322 4 of of IN 40404 5322 5 sand sand NN 40404 5322 6 and and CC 40404 5322 7 gravel gravel NN 40404 5322 8 lie lie NN 40404 5322 9 in in IN 40404 5322 10 front front NN 40404 5322 11 of of IN 40404 5322 12 the the DT 40404 5322 13 moraine moraine JJ 40404 5322 14 belts belt NNS 40404 5322 15 , , , 40404 5322 16 and and CC 40404 5322 17 long long JJ 40404 5322 18 valley valley NN 40404 5322 19 trains train NNS 40404 5322 20 of of IN 40404 5322 21 coarse coarse JJ 40404 5322 22 gravels gravel NNS 40404 5322 23 tell tell VBP 40404 5322 24 of of IN 40404 5322 25 the the DT 40404 5322 26 swift swift JJ 40404 5322 27 and and CC 40404 5322 28 powerful powerful JJ 40404 5322 29 rivers river NNS 40404 5322 30 of of IN 40404 5322 31 the the DT 40404 5322 32 time time NN 40404 5322 33 . . . 40404 5323 1 = = NFP 40404 5323 2 The the DT 40404 5323 3 loess loess NN 40404 5323 4 of of IN 40404 5323 5 the the DT 40404 5323 6 Mississippi Mississippi NNP 40404 5323 7 valley.= valley.= VBD 40404 5323 8 A a DT 40404 5323 9 yellow yellow JJ 40404 5323 10 earth earth NN 40404 5323 11 , , , 40404 5323 12 quite quite RB 40404 5323 13 like like IN 40404 5323 14 the the DT 40404 5323 15 loess loess NN 40404 5323 16 of of IN 40404 5323 17 China China NNP 40404 5323 18 , , , 40404 5323 19 is be VBZ 40404 5323 20 laid lay VBN 40404 5323 21 broadly broadly RB 40404 5323 22 as as IN 40404 5323 23 a a DT 40404 5323 24 surface surface NN 40404 5323 25 deposit deposit NN 40404 5323 26 over over IN 40404 5323 27 the the DT 40404 5323 28 Mississippi Mississippi NNP 40404 5323 29 valley valley NN 40404 5323 30 from from IN 40404 5323 31 eastern eastern JJ 40404 5323 32 Nebraska Nebraska NNP 40404 5323 33 to to IN 40404 5323 34 Ohio Ohio NNP 40404 5323 35 outside outside IN 40404 5323 36 the the DT 40404 5323 37 boundaries boundary NNS 40404 5323 38 of of IN 40404 5323 39 the the DT 40404 5323 40 Iowan Iowan NNP 40404 5323 41 and and CC 40404 5323 42 the the DT 40404 5323 43 Wisconsin Wisconsin NNP 40404 5323 44 drift drift NN 40404 5323 45 . . . 40404 5324 1 Much much JJ 40404 5324 2 of of IN 40404 5324 3 the the DT 40404 5324 4 loess loess NN 40404 5324 5 was be VBD 40404 5324 6 deposited deposit VBN 40404 5324 7 in in IN 40404 5324 8 Iowan Iowan NNP 40404 5324 9 times time NNS 40404 5324 10 . . . 40404 5325 1 It -PRON- PRP 40404 5325 2 is be VBZ 40404 5325 3 younger young JJR 40404 5325 4 than than IN 40404 5325 5 the the DT 40404 5325 6 earlier early JJR 40404 5325 7 drift drift NN 40404 5325 8 sheets sheet NNS 40404 5325 9 , , , 40404 5325 10 for for IN 40404 5325 11 it -PRON- PRP 40404 5325 12 overlies overlie VBZ 40404 5325 13 their -PRON- PRP$ 40404 5325 14 weathered weather VBN 40404 5325 15 and and CC 40404 5325 16 eroded erode VBD 40404 5325 17 surfaces surface NNS 40404 5325 18 . . . 40404 5326 1 It -PRON- PRP 40404 5326 2 thickens thicken VBZ 40404 5326 3 to to IN 40404 5326 4 the the DT 40404 5326 5 Iowan Iowan NNP 40404 5326 6 drift drift NN 40404 5326 7 border border NN 40404 5326 8 , , , 40404 5326 9 but but CC 40404 5326 10 is be VBZ 40404 5326 11 not not RB 40404 5326 12 found find VBN 40404 5326 13 upon upon IN 40404 5326 14 that that DT 40404 5326 15 drift drift NN 40404 5326 16 . . . 40404 5327 1 It -PRON- PRP 40404 5327 2 is be VBZ 40404 5327 3 older old JJR 40404 5327 4 than than IN 40404 5327 5 the the DT 40404 5327 6 Wisconsin Wisconsin NNP 40404 5327 7 , , , 40404 5327 8 for for IN 40404 5327 9 in in IN 40404 5327 10 many many JJ 40404 5327 11 places place NNS 40404 5327 12 it -PRON- PRP 40404 5327 13 passes pass VBZ 40404 5327 14 underneath underneath IN 40404 5327 15 the the DT 40404 5327 16 Wisconsin Wisconsin NNP 40404 5327 17 terminal terminal NN 40404 5327 18 moraines moraine NNS 40404 5327 19 . . . 40404 5328 1 In in IN 40404 5328 2 part part NN 40404 5328 3 the the DT 40404 5328 4 loess loess NN 40404 5328 5 seems seem VBZ 40404 5328 6 to to TO 40404 5328 7 have have VB 40404 5328 8 been be VBN 40404 5328 9 washed wash VBN 40404 5328 10 from from IN 40404 5328 11 glacial glacial JJ 40404 5328 12 waste waste NN 40404 5328 13 and and CC 40404 5328 14 spread spread VBD 40404 5328 15 in in IN 40404 5328 16 sluggish sluggish JJ 40404 5328 17 glacial glacial JJ 40404 5328 18 waters water NNS 40404 5328 19 , , , 40404 5328 20 and and CC 40404 5328 21 in in IN 40404 5328 22 part part NN 40404 5328 23 to to TO 40404 5328 24 have have VB 40404 5328 25 been be VBN 40404 5328 26 distributed distribute VBN 40404 5328 27 by by IN 40404 5328 28 the the DT 40404 5328 29 wind wind NN 40404 5328 30 from from IN 40404 5328 31 plains plain NNS 40404 5328 32 of of IN 40404 5328 33 aggrading aggrade VBG 40404 5328 34 glacial glacial JJ 40404 5328 35 streams stream NNS 40404 5328 36 . . . 40404 5329 1 [ [ -LRB- 40404 5329 2 Illustration illustration NN 40404 5329 3 : : : 40404 5329 4 Fig Fig NNP 40404 5329 5 . . . 40404 5330 1 364 364 CD 40404 5330 2 . . . 40404 5331 1 Bank Bank NNP 40404 5331 2 of of IN 40404 5331 3 Loess Loess NNP 40404 5331 4 , , , 40404 5331 5 Iowa Iowa NNP 40404 5331 6 ] ] -RRB- 40404 5331 7 = = NFP 40404 5331 8 The the DT 40404 5331 9 effects effect NNS 40404 5331 10 of of IN 40404 5331 11 the the DT 40404 5331 12 ice ice NN 40404 5331 13 invasions invasion NNS 40404 5331 14 on on IN 40404 5331 15 rivers.= rivers.= NNP 40404 5331 16 The the DT 40404 5331 17 repeated repeated JJ 40404 5331 18 ice ice NN 40404 5331 19 invasions invasion NNS 40404 5331 20 of of IN 40404 5331 21 the the DT 40404 5331 22 Pleistocene Pleistocene NNP 40404 5331 23 profoundly profoundly RB 40404 5331 24 disarranged disarrange VBD 40404 5331 25 the the DT 40404 5331 26 drainage drainage NN 40404 5331 27 systems system NNS 40404 5331 28 of of IN 40404 5331 29 our -PRON- PRP$ 40404 5331 30 northern northern JJ 40404 5331 31 states state NNS 40404 5331 32 . . . 40404 5332 1 In in IN 40404 5332 2 some some DT 40404 5332 3 regions region NNS 40404 5332 4 the the DT 40404 5332 5 ancient ancient JJ 40404 5332 6 valleys valley NNS 40404 5332 7 were be VBD 40404 5332 8 completely completely RB 40404 5332 9 filled fill VBN 40404 5332 10 with with IN 40404 5332 11 drift drift NN 40404 5332 12 . . . 40404 5333 1 On on IN 40404 5333 2 the the DT 40404 5333 3 withdrawal withdrawal NN 40404 5333 4 of of IN 40404 5333 5 the the DT 40404 5333 6 ice ice NN 40404 5333 7 the the DT 40404 5333 8 streams stream NNS 40404 5333 9 were be VBD 40404 5333 10 compelled compel VBN 40404 5333 11 to to TO 40404 5333 12 find find VB 40404 5333 13 their -PRON- PRP$ 40404 5333 14 way way NN 40404 5333 15 , , , 40404 5333 16 as as RB 40404 5333 17 best best RB 40404 5333 18 they -PRON- PRP 40404 5333 19 could could MD 40404 5333 20 , , , 40404 5333 21 over over IN 40404 5333 22 a a DT 40404 5333 23 fresh fresh JJ 40404 5333 24 land land NN 40404 5333 25 surface surface NN 40404 5333 26 , , , 40404 5333 27 where where WRB 40404 5333 28 we -PRON- PRP 40404 5333 29 now now RB 40404 5333 30 find find VBP 40404 5333 31 them -PRON- PRP 40404 5333 32 flowing flow VBG 40404 5333 33 on on IN 40404 5333 34 the the DT 40404 5333 35 drift drift NN 40404 5333 36 in in IN 40404 5333 37 young young JJ 40404 5333 38 , , , 40404 5333 39 narrow narrow JJ 40404 5333 40 channels channel NNS 40404 5333 41 . . . 40404 5334 1 But but CC 40404 5334 2 hundreds hundred NNS 40404 5334 3 of of IN 40404 5334 4 feet foot NNS 40404 5334 5 below below IN 40404 5334 6 the the DT 40404 5334 7 ground ground NN 40404 5334 8 the the DT 40404 5334 9 well well NNP 40404 5334 10 driller driller NNP 40404 5334 11 and and CC 40404 5334 12 the the DT 40404 5334 13 prospector prospector NN 40404 5334 14 for for IN 40404 5334 15 coal coal NN 40404 5334 16 and and CC 40404 5334 17 oil oil NN 40404 5334 18 discover discover VBP 40404 5334 19 deep deep JJ 40404 5334 20 , , , 40404 5334 21 wide wide JJ 40404 5334 22 , , , 40404 5334 23 buried bury VBN 40404 5334 24 valleys valley NNS 40404 5334 25 cut cut VBN 40404 5334 26 in in IN 40404 5334 27 rock,--the rock,--the NNP 40404 5334 28 channels channel NNS 40404 5334 29 of of IN 40404 5334 30 preglacial preglacial JJ 40404 5334 31 and and CC 40404 5334 32 interglacial interglacial JJ 40404 5334 33 streams stream NNS 40404 5334 34 . . . 40404 5335 1 In in IN 40404 5335 2 places place NNS 40404 5335 3 the the DT 40404 5335 4 ancient ancient JJ 40404 5335 5 valleys valley NNS 40404 5335 6 were be VBD 40404 5335 7 filled fill VBN 40404 5335 8 with with IN 40404 5335 9 drift drift NN 40404 5335 10 to to IN 40404 5335 11 a a DT 40404 5335 12 depth depth NN 40404 5335 13 of of IN 40404 5335 14 a a DT 40404 5335 15 hundred hundred CD 40404 5335 16 feet foot NNS 40404 5335 17 , , , 40404 5335 18 and and CC 40404 5335 19 sometimes sometimes RB 40404 5335 20 even even RB 40404 5335 21 to to IN 40404 5335 22 a a DT 40404 5335 23 depth depth NN 40404 5335 24 of of IN 40404 5335 25 four four CD 40404 5335 26 hundred hundred CD 40404 5335 27 and and CC 40404 5335 28 five five CD 40404 5335 29 hundred hundred CD 40404 5335 30 feet foot NNS 40404 5335 31 . . . 40404 5336 1 In in IN 40404 5336 2 such such JJ 40404 5336 3 valleys valley NNS 40404 5336 4 , , , 40404 5336 5 rivers river NNS 40404 5336 6 now now RB 40404 5336 7 flow flow VBP 40404 5336 8 high high RB 40404 5336 9 above above IN 40404 5336 10 their -PRON- PRP$ 40404 5336 11 ancient ancient JJ 40404 5336 12 beds bed NNS 40404 5336 13 of of IN 40404 5336 14 rock rock NN 40404 5336 15 on on IN 40404 5336 16 floors floor NNS 40404 5336 17 of of IN 40404 5336 18 valley valley NNP 40404 5336 19 drift drift NNP 40404 5336 20 . . . 40404 5337 1 Many many JJ 40404 5337 2 of of IN 40404 5337 3 the the DT 40404 5337 4 valleys valley NNS 40404 5337 5 of of IN 40404 5337 6 our -PRON- PRP$ 40404 5337 7 present present JJ 40404 5337 8 rivers river NNS 40404 5337 9 are be VBP 40404 5337 10 but but CC 40404 5337 11 patchworks patchwork NNS 40404 5337 12 of of IN 40404 5337 13 preglacial preglacial JJ 40404 5337 14 , , , 40404 5337 15 interglacial interglacial JJ 40404 5337 16 , , , 40404 5337 17 and and CC 40404 5337 18 postglacial postglacial JJ 40404 5337 19 courses course NNS 40404 5337 20 ( ( -LRB- 40404 5337 21 Fig fig NN 40404 5337 22 . . . 40404 5338 1 366 366 CD 40404 5338 2 ) ) -RRB- 40404 5338 3 . . . 40404 5339 1 Here here RB 40404 5339 2 the the DT 40404 5339 3 river river NN 40404 5339 4 winds wind NNS 40404 5339 5 along along IN 40404 5339 6 an an DT 40404 5339 7 ancient ancient JJ 40404 5339 8 valley valley NN 40404 5339 9 with with IN 40404 5339 10 gently gently RB 40404 5339 11 sloping slope VBG 40404 5339 12 sides side NNS 40404 5339 13 and and CC 40404 5339 14 a a DT 40404 5339 15 wide wide JJ 40404 5339 16 alluvial alluvial JJ 40404 5339 17 floor floor NN 40404 5339 18 perhaps perhaps RB 40404 5339 19 a a DT 40404 5339 20 mile mile NN 40404 5339 21 or or CC 40404 5339 22 so so RB 40404 5339 23 in in IN 40404 5339 24 width width NN 40404 5339 25 , , , 40404 5339 26 and and CC 40404 5339 27 there there RB 40404 5339 28 it -PRON- PRP 40404 5339 29 enters enter VBZ 40404 5339 30 a a DT 40404 5339 31 young young JJ 40404 5339 32 , , , 40404 5339 33 rock rock NN 40404 5339 34 - - HYPH 40404 5339 35 walled walled JJ 40404 5339 36 gorge gorge NN 40404 5339 37 , , , 40404 5339 38 whose whose WP$ 40404 5339 39 rocky rocky JJ 40404 5339 40 bed bed NN 40404 5339 41 may may MD 40404 5339 42 be be VB 40404 5339 43 crossed cross VBN 40404 5339 44 by by IN 40404 5339 45 ledges ledge NNS 40404 5339 46 over over IN 40404 5339 47 which which WDT 40404 5339 48 the the DT 40404 5339 49 river river NN 40404 5339 50 plunges plunge NNS 40404 5339 51 in in IN 40404 5339 52 waterfalls waterfall NNS 40404 5339 53 and and CC 40404 5339 54 rapids rapid NNS 40404 5339 55 . . . 40404 5340 1 [ [ -LRB- 40404 5340 2 Illustration illustration NN 40404 5340 3 : : : 40404 5340 4 Fig Fig NNP 40404 5340 5 . . . 40404 5341 1 365 365 CD 40404 5341 2 . . . 40404 5342 1 Preglacial Preglacial NNP 40404 5342 2 Drainage Drainage NNP 40404 5342 3 , , , 40404 5342 4 Upper Upper NNP 40404 5342 5 Ohio Ohio NNP 40404 5342 6 Valley Valley NNP 40404 5342 7 After after IN 40404 5342 8 Chamberlain Chamberlain NNP 40404 5342 9 and and CC 40404 5342 10 Leverett Leverett NNP 40404 5342 11 ] ] -RRB- 40404 5342 12 [ [ -LRB- 40404 5342 13 Illustration illustration NN 40404 5342 14 : : : 40404 5342 15 Fig Fig NNP 40404 5342 16 . . . 40404 5343 1 366 366 CD 40404 5343 2 . . . 40404 5344 1 A a DT 40404 5344 2 Patchwork Patchwork NNP 40404 5344 3 Valley Valley NNP 40404 5344 4 _ _ NNP 40404 5344 5 a a DT 40404 5344 6 _ _ NNP 40404 5344 7 and and CC 40404 5344 8 _ _ NNP 40404 5344 9 a a DT 40404 5344 10 ´ ´ CD 40404 5344 11 _ _ NNP 40404 5344 12 , , , 40404 5344 13 ancient ancient JJ 40404 5344 14 courses course NNS 40404 5344 15 still still RB 40404 5344 16 occupied occupy VBN 40404 5344 17 by by IN 40404 5344 18 the the DT 40404 5344 19 river river NN 40404 5344 20 ; ; : 40404 5344 21 _ _ NNP 40404 5344 22 b b NNP 40404 5344 23 _ _ NNP 40404 5344 24 , , , 40404 5344 25 postglacial postglacial JJ 40404 5344 26 gorge gorge NN 40404 5344 27 ; ; : 40404 5344 28 _ _ NNP 40404 5344 29 c c NNP 40404 5344 30 _ _ NNP 40404 5344 31 , , , 40404 5344 32 ancient ancient JJ 40404 5344 33 course course NN 40404 5344 34 now now RB 40404 5344 35 filled fill VBN 40404 5344 36 with with IN 40404 5344 37 drift drift NN 40404 5344 38 ] ] -RRB- 40404 5344 39 In in IN 40404 5344 40 such such JJ 40404 5344 41 cases case NNS 40404 5344 42 it -PRON- PRP 40404 5344 43 is be VBZ 40404 5344 44 possible possible JJ 40404 5344 45 that that IN 40404 5344 46 the the DT 40404 5344 47 river river NN 40404 5344 48 was be VBD 40404 5344 49 pushed push VBN 40404 5344 50 to to IN 40404 5344 51 one one CD 40404 5344 52 side side NN 40404 5344 53 of of IN 40404 5344 54 its -PRON- PRP$ 40404 5344 55 former former JJ 40404 5344 56 valley valley NN 40404 5344 57 by by IN 40404 5344 58 a a DT 40404 5344 59 lobe lobe NN 40404 5344 60 of of IN 40404 5344 61 ice ice NN 40404 5344 62 , , , 40404 5344 63 and and CC 40404 5344 64 compelled compel VBD 40404 5344 65 to to TO 40404 5344 66 cut cut VB 40404 5344 67 a a DT 40404 5344 68 new new JJ 40404 5344 69 channel channel NN 40404 5344 70 in in IN 40404 5344 71 the the DT 40404 5344 72 adjacent adjacent JJ 40404 5344 73 uplands upland NNS 40404 5344 74 . . . 40404 5345 1 A a DT 40404 5345 2 section section NN 40404 5345 3 of of IN 40404 5345 4 the the DT 40404 5345 5 valley valley NN 40404 5345 6 may may MD 40404 5345 7 have have VB 40404 5345 8 been be VBN 40404 5345 9 blockaded blockade VBN 40404 5345 10 with with IN 40404 5345 11 morainic morainic JJ 40404 5345 12 waste waste NN 40404 5345 13 , , , 40404 5345 14 and and CC 40404 5345 15 the the DT 40404 5345 16 lake lake NN 40404 5345 17 formed form VBD 40404 5345 18 behind behind IN 40404 5345 19 the the DT 40404 5345 20 barrier barrier NN 40404 5345 21 may may MD 40404 5345 22 have have VB 40404 5345 23 found find VBN 40404 5345 24 outlet outlet NN 40404 5345 25 over over IN 40404 5345 26 the the DT 40404 5345 27 country country NN 40404 5345 28 to to IN 40404 5345 29 one one CD 40404 5345 30 side side NN 40404 5345 31 of of IN 40404 5345 32 the the DT 40404 5345 33 ancient ancient JJ 40404 5345 34 drift drift NN 40404 5345 35 - - HYPH 40404 5345 36 filled fill VBN 40404 5345 37 valley valley NNP 40404 5345 38 . . . 40404 5346 1 In in IN 40404 5346 2 some some DT 40404 5346 3 instances instance NNS 40404 5346 4 it -PRON- PRP 40404 5346 5 would would MD 40404 5346 6 seem seem VB 40404 5346 7 that that IN 40404 5346 8 during during IN 40404 5346 9 the the DT 40404 5346 10 waning waning NN 40404 5346 11 of of IN 40404 5346 12 the the DT 40404 5346 13 ice ice NN 40404 5346 14 sheets sheet NNS 40404 5346 15 , , , 40404 5346 16 glacial glacial JJ 40404 5346 17 streams stream NNS 40404 5346 18 , , , 40404 5346 19 while while IN 40404 5346 20 confined confine VBN 40404 5346 21 within within IN 40404 5346 22 walls wall NNS 40404 5346 23 of of IN 40404 5346 24 stagnant stagnant JJ 40404 5346 25 ice ice NN 40404 5346 26 , , , 40404 5346 27 cut cut VBD 40404 5346 28 down down RP 40404 5346 29 through through IN 40404 5346 30 the the DT 40404 5346 31 ice ice NN 40404 5346 32 and and CC 40404 5346 33 incised incise VBD 40404 5346 34 their -PRON- PRP$ 40404 5346 35 channels channel NNS 40404 5346 36 on on IN 40404 5346 37 the the DT 40404 5346 38 underlying underlie VBG 40404 5346 39 country country NN 40404 5346 40 , , , 40404 5346 41 in in IN 40404 5346 42 some some DT 40404 5346 43 cases case NNS 40404 5346 44 being be VBG 40404 5346 45 let let VBD 40404 5346 46 down down RP 40404 5346 47 on on IN 40404 5346 48 old old JJ 40404 5346 49 river river NN 40404 5346 50 courses course NNS 40404 5346 51 , , , 40404 5346 52 and and CC 40404 5346 53 in in IN 40404 5346 54 other other JJ 40404 5346 55 cases case NNS 40404 5346 56 excavating excavate VBG 40404 5346 57 gorges gorge NNS 40404 5346 58 in in IN 40404 5346 59 adjacent adjacent JJ 40404 5346 60 uplands upland NNS 40404 5346 61 . . . 40404 5347 1 = = NFP 40404 5347 2 Pleistocene Pleistocene NNP 40404 5347 3 lakes.= lakes.= NNP 40404 5347 4 Temporary temporary JJ 40404 5347 5 lakes lake NNS 40404 5347 6 were be VBD 40404 5347 7 formed form VBN 40404 5347 8 wherever wherever WRB 40404 5347 9 the the DT 40404 5347 10 ice ice NN 40404 5347 11 front front NN 40404 5347 12 dammed dam VBD 40404 5347 13 the the DT 40404 5347 14 natural natural JJ 40404 5347 15 drainage drainage NN 40404 5347 16 of of IN 40404 5347 17 the the DT 40404 5347 18 region region NN 40404 5347 19 . . . 40404 5348 1 Some some DT 40404 5348 2 , , , 40404 5348 3 held hold VBN 40404 5348 4 in in IN 40404 5348 5 the the DT 40404 5348 6 minor minor JJ 40404 5348 7 valleys valley NNS 40404 5348 8 crossed cross VBN 40404 5348 9 by by IN 40404 5348 10 ice ice NN 40404 5348 11 lobes lobe NNS 40404 5348 12 , , , 40404 5348 13 were be VBD 40404 5348 14 small small JJ 40404 5348 15 , , , 40404 5348 16 and and CC 40404 5348 17 no no RB 40404 5348 18 doubt doubt RB 40404 5348 19 many many JJ 40404 5348 20 were be VBD 40404 5348 21 too too RB 40404 5348 22 short short JJ 40404 5348 23 - - HYPH 40404 5348 24 lived live VBN 40404 5348 25 to to TO 40404 5348 26 leave leave VB 40404 5348 27 lasting lasting JJ 40404 5348 28 records record NNS 40404 5348 29 . . . 40404 5349 1 Others other NNS 40404 5349 2 , , , 40404 5349 3 long long RB 40404 5349 4 held hold VBN 40404 5349 5 against against IN 40404 5349 6 the the DT 40404 5349 7 northward northward JJ 40404 5349 8 sloping slope VBG 40404 5349 9 country country NN 40404 5349 10 by by IN 40404 5349 11 the the DT 40404 5349 12 retreating retreat VBG 40404 5349 13 ice ice NN 40404 5349 14 edge edge NN 40404 5349 15 , , , 40404 5349 16 left leave VBN 40404 5349 17 in in IN 40404 5349 18 their -PRON- PRP$ 40404 5349 19 beaches beach NNS 40404 5349 20 their -PRON- PRP$ 40404 5349 21 clayey clayey NN 40404 5349 22 beds bed NNS 40404 5349 23 , , , 40404 5349 24 and and CC 40404 5349 25 their -PRON- PRP$ 40404 5349 26 outlet outlet NN 40404 5349 27 channels channel VBZ 40404 5349 28 permanent permanent JJ 40404 5349 29 evidences evidence NNS 40404 5349 30 of of IN 40404 5349 31 their -PRON- PRP$ 40404 5349 32 area area NN 40404 5349 33 and and CC 40404 5349 34 depth depth NN 40404 5349 35 . . . 40404 5350 1 Some some DT 40404 5350 2 of of IN 40404 5350 3 these these DT 40404 5350 4 glacial glacial JJ 40404 5350 5 lakes lake NNS 40404 5350 6 are be VBP 40404 5350 7 thus thus RB 40404 5350 8 known know VBN 40404 5350 9 to to TO 40404 5350 10 have have VB 40404 5350 11 been be VBN 40404 5350 12 larger large JJR 40404 5350 13 than than IN 40404 5350 14 any any DT 40404 5350 15 present present JJ 40404 5350 16 lake lake NN 40404 5350 17 . . . 40404 5351 1 Lake Lake NNP 40404 5351 2 Agassiz Agassiz NNP 40404 5351 3 , , , 40404 5351 4 named name VBN 40404 5351 5 in in IN 40404 5351 6 honor honor NN 40404 5351 7 of of IN 40404 5351 8 the the DT 40404 5351 9 author author NN 40404 5351 10 of of IN 40404 5351 11 the the DT 40404 5351 12 theory theory NN 40404 5351 13 of of IN 40404 5351 14 continental continental NNP 40404 5351 15 glaciation glaciation NNP 40404 5351 16 , , , 40404 5351 17 is be VBZ 40404 5351 18 supposed suppose VBN 40404 5351 19 to to TO 40404 5351 20 have have VB 40404 5351 21 been be VBN 40404 5351 22 held hold VBN 40404 5351 23 by by IN 40404 5351 24 the the DT 40404 5351 25 united united NNP 40404 5351 26 front front NN 40404 5351 27 of of IN 40404 5351 28 the the DT 40404 5351 29 Keewatin Keewatin NNP 40404 5351 30 and and CC 40404 5351 31 the the DT 40404 5351 32 Labrador Labrador NNP 40404 5351 33 ice ice NN 40404 5351 34 fields field NNS 40404 5351 35 as as IN 40404 5351 36 they -PRON- PRP 40404 5351 37 finally finally RB 40404 5351 38 retreated retreat VBD 40404 5351 39 down down RP 40404 5351 40 the the DT 40404 5351 41 valley valley NN 40404 5351 42 of of IN 40404 5351 43 the the DT 40404 5351 44 Red Red NNP 40404 5351 45 River River NNP 40404 5351 46 of of IN 40404 5351 47 the the DT 40404 5351 48 North North NNP 40404 5351 49 and and CC 40404 5351 50 the the DT 40404 5351 51 drainage drainage NN 40404 5351 52 basin basin NN 40404 5351 53 of of IN 40404 5351 54 Lake Lake NNP 40404 5351 55 Winnipeg Winnipeg NNP 40404 5351 56 . . . 40404 5352 1 From from IN 40404 5352 2 first first RB 40404 5352 3 to to IN 40404 5352 4 last last JJ 40404 5352 5 Lake Lake NNP 40404 5352 6 Agassiz Agassiz NNP 40404 5352 7 covered cover VBD 40404 5352 8 a a DT 40404 5352 9 hundred hundred CD 40404 5352 10 and and CC 40404 5352 11 ten ten CD 40404 5352 12 thousand thousand CD 40404 5352 13 square square JJ 40404 5352 14 miles mile NNS 40404 5352 15 in in IN 40404 5352 16 Manitoba Manitoba NNP 40404 5352 17 and and CC 40404 5352 18 the the DT 40404 5352 19 adjacent adjacent JJ 40404 5352 20 parts part NNS 40404 5352 21 of of IN 40404 5352 22 Minnesota Minnesota NNP 40404 5352 23 and and CC 40404 5352 24 North North NNP 40404 5352 25 Dakota,--an Dakota,--an NNP 40404 5352 26 area area NN 40404 5352 27 larger large JJR 40404 5352 28 than than IN 40404 5352 29 all all PDT 40404 5352 30 the the DT 40404 5352 31 Great Great NNP 40404 5352 32 Lakes Lakes NNPS 40404 5352 33 combined combine VBN 40404 5352 34 . . . 40404 5353 1 It -PRON- PRP 40404 5353 2 discharged discharge VBD 40404 5353 3 its -PRON- PRP$ 40404 5353 4 waters water NNS 40404 5353 5 across across IN 40404 5353 6 the the DT 40404 5353 7 divide divide NN 40404 5353 8 which which WDT 40404 5353 9 held hold VBD 40404 5353 10 it -PRON- PRP 40404 5353 11 on on IN 40404 5353 12 the the DT 40404 5353 13 south south NN 40404 5353 14 , , , 40404 5353 15 and and CC 40404 5353 16 thus thus RB 40404 5353 17 excavated excavate VBD 40404 5353 18 the the DT 40404 5353 19 valley valley NN 40404 5353 20 of of IN 40404 5353 21 the the DT 40404 5353 22 Minnesota Minnesota NNP 40404 5353 23 River River NNP 40404 5353 24 . . . 40404 5354 1 The the DT 40404 5354 2 lake lake NN 40404 5354 3 bed bed NN 40404 5354 4 -- -- : 40404 5354 5 a a DT 40404 5354 6 plain plain NN 40404 5354 7 of of IN 40404 5354 8 till till IN 40404 5354 9 -- -- : 40404 5354 10 was be VBD 40404 5354 11 spread spread VBN 40404 5354 12 smooth smooth JJ 40404 5354 13 and and CC 40404 5354 14 level level NN 40404 5354 15 as as IN 40404 5354 16 a a DT 40404 5354 17 floor floor NN 40404 5354 18 with with IN 40404 5354 19 lacustrine lacustrine NNP 40404 5354 20 silts silt NNS 40404 5354 21 . . . 40404 5355 1 Since since IN 40404 5355 2 Lake Lake NNP 40404 5355 3 Agassiz Agassiz NNP 40404 5355 4 vanished vanish VBD 40404 5355 5 with with IN 40404 5355 6 the the DT 40404 5355 7 melting melting NN 40404 5355 8 back back RB 40404 5355 9 of of IN 40404 5355 10 the the DT 40404 5355 11 ice ice NN 40404 5355 12 beyond beyond IN 40404 5355 13 the the DT 40404 5355 14 outlet outlet NN 40404 5355 15 by by IN 40404 5355 16 the the DT 40404 5355 17 Nelson Nelson NNP 40404 5355 18 River River NNP 40404 5355 19 into into IN 40404 5355 20 Hudson Hudson NNP 40404 5355 21 Bay Bay NNP 40404 5355 22 , , , 40404 5355 23 there there EX 40404 5355 24 has have VBZ 40404 5355 25 gathered gather VBN 40404 5355 26 on on IN 40404 5355 27 its -PRON- PRP$ 40404 5355 28 floor floor NN 40404 5355 29 a a DT 40404 5355 30 deep deep JJ 40404 5355 31 humus humus NN 40404 5355 32 , , , 40404 5355 33 rich rich JJ 40404 5355 34 in in IN 40404 5355 35 the the DT 40404 5355 36 nitrogenous nitrogenous JJ 40404 5355 37 elements element NNS 40404 5355 38 so so RB 40404 5355 39 needful needful JJ 40404 5355 40 for for IN 40404 5355 41 the the DT 40404 5355 42 growth growth NN 40404 5355 43 of of IN 40404 5355 44 plants plant NNS 40404 5355 45 , , , 40404 5355 46 and and CC 40404 5355 47 it -PRON- PRP 40404 5355 48 is be VBZ 40404 5355 49 to to IN 40404 5355 50 this this DT 40404 5355 51 soil soil NN 40404 5355 52 that that IN 40404 5355 53 the the DT 40404 5355 54 region region NN 40404 5355 55 owes owe VBZ 40404 5355 56 its -PRON- PRP$ 40404 5355 57 well well RB 40404 5355 58 - - HYPH 40404 5355 59 known know VBN 40404 5355 60 fertility fertility NN 40404 5355 61 . . . 40404 5356 1 = = NFP 40404 5356 2 The the DT 40404 5356 3 Great great JJ 40404 5356 4 Lakes.= lakes.= NN 40404 5356 5 The the DT 40404 5356 6 basins basin NNS 40404 5356 7 of of IN 40404 5356 8 the the DT 40404 5356 9 Great Great NNP 40404 5356 10 Lakes Lakes NNPS 40404 5356 11 are be VBP 40404 5356 12 broad broad JJ 40404 5356 13 preglacial preglacial JJ 40404 5356 14 river river NN 40404 5356 15 valleys valley NNS 40404 5356 16 , , , 40404 5356 17 warped warp VBN 40404 5356 18 by by IN 40404 5356 19 movements movement NNS 40404 5356 20 of of IN 40404 5356 21 the the DT 40404 5356 22 crust crust NN 40404 5356 23 still still RB 40404 5356 24 in in IN 40404 5356 25 progress progress NN 40404 5356 26 , , , 40404 5356 27 enlarged enlarge VBN 40404 5356 28 by by IN 40404 5356 29 the the DT 40404 5356 30 erosive erosive JJ 40404 5356 31 action action NN 40404 5356 32 of of IN 40404 5356 33 lobes lobe NNS 40404 5356 34 of of IN 40404 5356 35 the the DT 40404 5356 36 continental continental JJ 40404 5356 37 ice ice NN 40404 5356 38 sheets sheet NNS 40404 5356 39 , , , 40404 5356 40 and and CC 40404 5356 41 blockaded blockade VBN 40404 5356 42 by by IN 40404 5356 43 their -PRON- PRP$ 40404 5356 44 drift drift NN 40404 5356 45 . . . 40404 5357 1 The the DT 40404 5357 2 complicated complicated JJ 40404 5357 3 glacial glacial JJ 40404 5357 4 and and CC 40404 5357 5 postglacial postglacial JJ 40404 5357 6 history history NN 40404 5357 7 of of IN 40404 5357 8 the the DT 40404 5357 9 lakes lake NNS 40404 5357 10 is be VBZ 40404 5357 11 recorded record VBN 40404 5357 12 in in IN 40404 5357 13 old old JJ 40404 5357 14 strand strand NN 40404 5357 15 lines line NNS 40404 5357 16 which which WDT 40404 5357 17 have have VBP 40404 5357 18 been be VBN 40404 5357 19 traced trace VBN 40404 5357 20 at at IN 40404 5357 21 various various JJ 40404 5357 22 heights height NNS 40404 5357 23 about about IN 40404 5357 24 them -PRON- PRP 40404 5357 25 , , , 40404 5357 26 showing show VBG 40404 5357 27 their -PRON- PRP$ 40404 5357 28 areas area NNS 40404 5357 29 and and CC 40404 5357 30 the the DT 40404 5357 31 levels level NNS 40404 5357 32 at at IN 40404 5357 33 which which WDT 40404 5357 34 their -PRON- PRP$ 40404 5357 35 waters water NNS 40404 5357 36 stood stand VBD 40404 5357 37 at at IN 40404 5357 38 different different JJ 40404 5357 39 times time NNS 40404 5357 40 . . . 40404 5358 1 With with IN 40404 5358 2 the the DT 40404 5358 3 retreat retreat NN 40404 5358 4 of of IN 40404 5358 5 the the DT 40404 5358 6 lobate lobate NN 40404 5358 7 Wisconsin Wisconsin NNP 40404 5358 8 ice ice NN 40404 5358 9 sheet sheet NN 40404 5358 10 toward toward IN 40404 5358 11 the the DT 40404 5358 12 north north NN 40404 5358 13 and and CC 40404 5358 14 east east NN 40404 5358 15 , , , 40404 5358 16 the the DT 40404 5358 17 southern southern JJ 40404 5358 18 and and CC 40404 5358 19 western western JJ 40404 5358 20 ends end NNS 40404 5358 21 of of IN 40404 5358 22 the the DT 40404 5358 23 basins basin NNS 40404 5358 24 of of IN 40404 5358 25 the the DT 40404 5358 26 Great Great NNP 40404 5358 27 Lakes Lakes NNPS 40404 5358 28 were be VBD 40404 5358 29 uncovered uncover VBN 40404 5358 30 first first RB 40404 5358 31 ; ; : 40404 5358 32 and and CC 40404 5358 33 here here RB 40404 5358 34 , , , 40404 5358 35 between between IN 40404 5358 36 the the DT 40404 5358 37 receding recede VBG 40404 5358 38 ice ice NN 40404 5358 39 front front NN 40404 5358 40 and and CC 40404 5358 41 the the DT 40404 5358 42 slopes slope NNS 40404 5358 43 of of IN 40404 5358 44 land land NN 40404 5358 45 which which WDT 40404 5358 46 faced face VBD 40404 5358 47 it -PRON- PRP 40404 5358 48 , , , 40404 5358 49 lakes lake NNS 40404 5358 50 gathered gather VBD 40404 5358 51 which which WDT 40404 5358 52 increased increase VBD 40404 5358 53 constantly constantly RB 40404 5358 54 in in IN 40404 5358 55 size size NN 40404 5358 56 . . . 40404 5359 1 The the DT 40404 5359 2 lake lake NN 40404 5359 3 which which WDT 40404 5359 4 thus thus RB 40404 5359 5 came come VBD 40404 5359 6 to to TO 40404 5359 7 occupy occupy VB 40404 5359 8 the the DT 40404 5359 9 western western JJ 40404 5359 10 end end NN 40404 5359 11 of of IN 40404 5359 12 the the DT 40404 5359 13 Lake Lake NNP 40404 5359 14 Superior Superior NNP 40404 5359 15 basin basin NN 40404 5359 16 discharged discharge VBD 40404 5359 17 over over IN 40404 5359 18 the the DT 40404 5359 19 divide divide NN 40404 5359 20 at at IN 40404 5359 21 Duluth Duluth NNP 40404 5359 22 down down IN 40404 5359 23 the the DT 40404 5359 24 St. St. NNP 40404 5359 25 Croix Croix NNP 40404 5359 26 River River NNP 40404 5359 27 , , , 40404 5359 28 as as IN 40404 5359 29 an an DT 40404 5359 30 old old JJ 40404 5359 31 outlet outlet NN 40404 5359 32 channel channel NN 40404 5359 33 proves prove VBZ 40404 5359 34 ; ; : 40404 5359 35 that that IN 40404 5359 36 which which WDT 40404 5359 37 held hold VBD 40404 5359 38 the the DT 40404 5359 39 southern southern JJ 40404 5359 40 end end NN 40404 5359 41 of of IN 40404 5359 42 the the DT 40404 5359 43 basin basin NN 40404 5359 44 of of IN 40404 5359 45 Lake Lake NNP 40404 5359 46 Michigan Michigan NNP 40404 5359 47 sent send VBD 40404 5359 48 its -PRON- PRP$ 40404 5359 49 overflow overflow NN 40404 5359 50 across across IN 40404 5359 51 the the DT 40404 5359 52 divide divide NN 40404 5359 53 at at IN 40404 5359 54 Chicago Chicago NNP 40404 5359 55 via via IN 40404 5359 56 the the DT 40404 5359 57 Illinois Illinois NNP 40404 5359 58 River River NNP 40404 5359 59 to to IN 40404 5359 60 the the DT 40404 5359 61 Mississippi Mississippi NNP 40404 5359 62 ; ; : 40404 5359 63 the the DT 40404 5359 64 lake lake NN 40404 5359 65 which which WDT 40404 5359 66 covered cover VBD 40404 5359 67 the the DT 40404 5359 68 lowlands lowland NNS 40404 5359 69 about about IN 40404 5359 70 the the DT 40404 5359 71 western western JJ 40404 5359 72 end end NN 40404 5359 73 of of IN 40404 5359 74 Lake Lake NNP 40404 5359 75 Erie Erie NNP 40404 5359 76 discharged discharge VBD 40404 5359 77 its -PRON- PRP$ 40404 5359 78 waters water NNS 40404 5359 79 at at IN 40404 5359 80 Fort Fort NNP 40404 5359 81 Wayne Wayne NNP 40404 5359 82 into into IN 40404 5359 83 the the DT 40404 5359 84 Wabash Wabash NNP 40404 5359 85 River River NNP 40404 5359 86 . . . 40404 5360 1 The the DT 40404 5360 2 ice ice NN 40404 5360 3 still still RB 40404 5360 4 blocked block VBD 40404 5360 5 the the DT 40404 5360 6 Mohawk Mohawk NNP 40404 5360 7 and and CC 40404 5360 8 St. St. NNP 40404 5360 9 Lawrence Lawrence NNP 40404 5360 10 valleys valley NNS 40404 5360 11 on on IN 40404 5360 12 the the DT 40404 5360 13 east east NN 40404 5360 14 , , , 40404 5360 15 while while IN 40404 5360 16 on on IN 40404 5360 17 the the DT 40404 5360 18 west west NN 40404 5360 19 it -PRON- PRP 40404 5360 20 had have VBD 40404 5360 21 retreated retreat VBN 40404 5360 22 far far RB 40404 5360 23 to to IN 40404 5360 24 the the DT 40404 5360 25 north north NN 40404 5360 26 . . . 40404 5361 1 The the DT 40404 5361 2 lakes lake NNS 40404 5361 3 become become VBP 40404 5361 4 confluent confluent JJ 40404 5361 5 in in IN 40404 5361 6 wide wide JJ 40404 5361 7 expanses expanse NNS 40404 5361 8 of of IN 40404 5361 9 water water NN 40404 5361 10 , , , 40404 5361 11 whose whose WP$ 40404 5361 12 depths depth NNS 40404 5361 13 and and CC 40404 5361 14 margins margin NNS 40404 5361 15 , , , 40404 5361 16 as as IN 40404 5361 17 shown show VBN 40404 5361 18 by by IN 40404 5361 19 their -PRON- PRP$ 40404 5361 20 old old JJ 40404 5361 21 lake lake NN 40404 5361 22 beaches beach NNS 40404 5361 23 , , , 40404 5361 24 varied vary VBD 40404 5361 25 at at IN 40404 5361 26 different different JJ 40404 5361 27 times time NNS 40404 5361 28 with with IN 40404 5361 29 the the DT 40404 5361 30 position position NN 40404 5361 31 of of IN 40404 5361 32 the the DT 40404 5361 33 confining confining NN 40404 5361 34 ice ice NN 40404 5361 35 and and CC 40404 5361 36 with with IN 40404 5361 37 warpings warping NNS 40404 5361 38 of of IN 40404 5361 39 the the DT 40404 5361 40 land land NN 40404 5361 41 . . . 40404 5362 1 These these DT 40404 5362 2 vast vast JJ 40404 5362 3 water water NN 40404 5362 4 bodies body NNS 40404 5362 5 , , , 40404 5362 6 which which WDT 40404 5362 7 at at IN 40404 5362 8 one one CD 40404 5362 9 or or CC 40404 5362 10 more more JJR 40404 5362 11 periods period NNS 40404 5362 12 were be VBD 40404 5362 13 greater great JJR 40404 5362 14 than than IN 40404 5362 15 all all PDT 40404 5362 16 the the DT 40404 5362 17 Great Great NNP 40404 5362 18 Lakes Lakes NNPS 40404 5362 19 combined combine VBN 40404 5362 20 , , , 40404 5362 21 discharged discharge VBN 40404 5362 22 at at IN 40404 5362 23 various various JJ 40404 5362 24 times time NNS 40404 5362 25 across across IN 40404 5362 26 the the DT 40404 5362 27 divide divide NN 40404 5362 28 at at IN 40404 5362 29 Chicago Chicago NNP 40404 5362 30 , , , 40404 5362 31 near near IN 40404 5362 32 Syracuse Syracuse NNP 40404 5362 33 , , , 40404 5362 34 New New NNP 40404 5362 35 York York NNP 40404 5362 36 , , , 40404 5362 37 down down IN 40404 5362 38 the the DT 40404 5362 39 Mohawk Mohawk NNP 40404 5362 40 valley valley NN 40404 5362 41 , , , 40404 5362 42 and and CC 40404 5362 43 by by IN 40404 5362 44 a a DT 40404 5362 45 channel channel NN 40404 5362 46 from from IN 40404 5362 47 Georgian Georgian NNP 40404 5362 48 Bay Bay NNP 40404 5362 49 into into IN 40404 5362 50 the the DT 40404 5362 51 Ottawa Ottawa NNP 40404 5362 52 River River NNP 40404 5362 53 . . . 40404 5363 1 Last last JJ 40404 5363 2 of of IN 40404 5363 3 all all PDT 40404 5363 4 the the DT 40404 5363 5 present present JJ 40404 5363 6 outlet outlet NN 40404 5363 7 by by IN 40404 5363 8 the the DT 40404 5363 9 St. St. NNP 40404 5363 10 Lawrence Lawrence NNP 40404 5363 11 was be VBD 40404 5363 12 established establish VBN 40404 5363 13 . . . 40404 5364 1 The the DT 40404 5364 2 beaches beach NNS 40404 5364 3 of of IN 40404 5364 4 the the DT 40404 5364 5 glacial glacial JJ 40404 5364 6 lakes lake NNS 40404 5364 7 just just RB 40404 5364 8 mentioned mention VBN 40404 5364 9 are be VBP 40404 5364 10 now now RB 40404 5364 11 far far RB 40404 5364 12 from from IN 40404 5364 13 horizontal horizontal JJ 40404 5364 14 . . . 40404 5365 1 That that DT 40404 5365 2 of of IN 40404 5365 3 the the DT 40404 5365 4 lake lake NN 40404 5365 5 which which WDT 40404 5365 6 occupied occupy VBD 40404 5365 7 the the DT 40404 5365 8 Ontario Ontario NNP 40404 5365 9 basin basin NN 40404 5365 10 has have VBZ 40404 5365 11 an an DT 40404 5365 12 elevation elevation NN 40404 5365 13 of of IN 40404 5365 14 three three CD 40404 5365 15 hundred hundred CD 40404 5365 16 and and CC 40404 5365 17 sixty sixty CD 40404 5365 18 - - HYPH 40404 5365 19 two two CD 40404 5365 20 feet foot NNS 40404 5365 21 above above IN 40404 5365 22 tide tide NN 40404 5365 23 at at IN 40404 5365 24 the the DT 40404 5365 25 west west NNP 40404 5365 26 and and CC 40404 5365 27 of of IN 40404 5365 28 six six CD 40404 5365 29 hundred hundred CD 40404 5365 30 and and CC 40404 5365 31 seventy seventy CD 40404 5365 32 - - HYPH 40404 5365 33 five five CD 40404 5365 34 feet foot NNS 40404 5365 35 at at IN 40404 5365 36 the the DT 40404 5365 37 northeast northeast NN 40404 5365 38 , , , 40404 5365 39 proving prove VBG 40404 5365 40 here here RB 40404 5365 41 a a DT 40404 5365 42 differential differential JJ 40404 5365 43 movement movement NN 40404 5365 44 of of IN 40404 5365 45 the the DT 40404 5365 46 land land NN 40404 5365 47 since since IN 40404 5365 48 glacial glacial JJ 40404 5365 49 times time NNS 40404 5365 50 amounting amount VBG 40404 5365 51 to to IN 40404 5365 52 more more JJR 40404 5365 53 than than IN 40404 5365 54 three three CD 40404 5365 55 hundred hundred CD 40404 5365 56 feet foot NNS 40404 5365 57 . . . 40404 5366 1 The the DT 40404 5366 2 beaches beach NNS 40404 5366 3 which which WDT 40404 5366 4 mark mark VBP 40404 5366 5 the the DT 40404 5366 6 successive successive JJ 40404 5366 7 heights height NNS 40404 5366 8 of of IN 40404 5366 9 these these DT 40404 5366 10 glacial glacial JJ 40404 5366 11 lakes lake NNS 40404 5366 12 are be VBP 40404 5366 13 not not RB 40404 5366 14 parallel parallel JJ 40404 5366 15 ; ; : 40404 5366 16 hence hence RB 40404 5366 17 the the DT 40404 5366 18 warping warping NN 40404 5366 19 began begin VBD 40404 5366 20 before before IN 40404 5366 21 the the DT 40404 5366 22 Glacial Glacial NNP 40404 5366 23 epoch epoch NN 40404 5366 24 closed close VBD 40404 5366 25 . . . 40404 5367 1 We -PRON- PRP 40404 5367 2 have have VBP 40404 5367 3 already already RB 40404 5367 4 seen see VBN 40404 5367 5 that that IN 40404 5367 6 the the DT 40404 5367 7 canting canting NN 40404 5367 8 of of IN 40404 5367 9 the the DT 40404 5367 10 region region NN 40404 5367 11 is be VBZ 40404 5367 12 still still RB 40404 5367 13 in in IN 40404 5367 14 progress progress NN 40404 5367 15 . . . 40404 5368 1 = = NFP 40404 5368 2 The the DT 40404 5368 3 Champlain Champlain NNP 40404 5368 4 subsidence.= subsidence.= VBD 40404 5368 5 As as IN 40404 5368 6 the the DT 40404 5368 7 Glacial Glacial NNP 40404 5368 8 epoch epoch NN 40404 5368 9 approached approach VBD 40404 5368 10 its -PRON- PRP$ 40404 5368 11 end end NN 40404 5368 12 , , , 40404 5368 13 and and CC 40404 5368 14 the the DT 40404 5368 15 Labrador Labrador NNP 40404 5368 16 ice ice NN 40404 5368 17 field field NN 40404 5368 18 melted melt VBD 40404 5368 19 back back RB 40404 5368 20 for for IN 40404 5368 21 the the DT 40404 5368 22 last last JJ 40404 5368 23 time time NN 40404 5368 24 to to IN 40404 5368 25 near near IN 40404 5368 26 its -PRON- PRP$ 40404 5368 27 source source NN 40404 5368 28 , , , 40404 5368 29 the the DT 40404 5368 30 land land NN 40404 5368 31 on on IN 40404 5368 32 which which WDT 40404 5368 33 the the DT 40404 5368 34 ice ice NN 40404 5368 35 had have VBD 40404 5368 36 lain lie VBN 40404 5368 37 in in IN 40404 5368 38 eastern eastern JJ 40404 5368 39 North North NNP 40404 5368 40 America America NNP 40404 5368 41 was be VBD 40404 5368 42 so so RB 40404 5368 43 depressed depressed JJ 40404 5368 44 that that IN 40404 5368 45 the the DT 40404 5368 46 sea sea NN 40404 5368 47 now now RB 40404 5368 48 spread spread VBP 40404 5368 49 far far RB 40404 5368 50 and and CC 40404 5368 51 wide wide VB 40404 5368 52 up up RP 40404 5368 53 the the DT 40404 5368 54 St. St. NNP 40404 5368 55 Lawrence Lawrence NNP 40404 5368 56 valley valley NN 40404 5368 57 . . . 40404 5369 1 It -PRON- PRP 40404 5369 2 joined join VBD 40404 5369 3 with with IN 40404 5369 4 Lake Lake NNP 40404 5369 5 Ontario Ontario NNP 40404 5369 6 , , , 40404 5369 7 and and CC 40404 5369 8 extending extend VBG 40404 5369 9 down down RP 40404 5369 10 the the DT 40404 5369 11 Champlain Champlain NNP 40404 5369 12 and and CC 40404 5369 13 Hudson Hudson NNP 40404 5369 14 valleys valley NNS 40404 5369 15 , , , 40404 5369 16 made make VBD 40404 5369 17 an an DT 40404 5369 18 island island NN 40404 5369 19 of of IN 40404 5369 20 New New NNP 40404 5369 21 England England NNP 40404 5369 22 and and CC 40404 5369 23 the the DT 40404 5369 24 maritime maritime JJ 40404 5369 25 provinces province NNS 40404 5369 26 of of IN 40404 5369 27 Canada Canada NNP 40404 5369 28 . . . 40404 5370 1 The the DT 40404 5370 2 proofs proof NNS 40404 5370 3 of of IN 40404 5370 4 this this DT 40404 5370 5 subsidence subsidence NN 40404 5370 6 are be VBP 40404 5370 7 found find VBN 40404 5370 8 in in IN 40404 5370 9 old old JJ 40404 5370 10 sea sea NN 40404 5370 11 beaches beach NNS 40404 5370 12 and and CC 40404 5370 13 sea sea NN 40404 5370 14 - - HYPH 40404 5370 15 laid lay VBN 40404 5370 16 clays clay NNS 40404 5370 17 resting rest VBG 40404 5370 18 on on IN 40404 5370 19 Wisconsin Wisconsin NNP 40404 5370 20 till till IN 40404 5370 21 . . . 40404 5371 1 At at IN 40404 5371 2 Montreal Montreal NNP 40404 5371 3 such such JJ 40404 5371 4 terraces terrace NNS 40404 5371 5 are be VBP 40404 5371 6 found find VBN 40404 5371 7 six six CD 40404 5371 8 hundred hundred CD 40404 5371 9 and and CC 40404 5371 10 twenty twenty CD 40404 5371 11 feet foot NNS 40404 5371 12 above above IN 40404 5371 13 sea sea NN 40404 5371 14 level level NN 40404 5371 15 , , , 40404 5371 16 and and CC 40404 5371 17 along along IN 40404 5371 18 Lake Lake NNP 40404 5371 19 Champlain Champlain NNP 40404 5371 20 -- -- : 40404 5371 21 where where WRB 40404 5371 22 the the DT 40404 5371 23 skeleton skeleton NN 40404 5371 24 of of IN 40404 5371 25 a a DT 40404 5371 26 whale whale NN 40404 5371 27 was be VBD 40404 5371 28 once once RB 40404 5371 29 found find VBN 40404 5371 30 among among IN 40404 5371 31 them -PRON- PRP 40404 5371 32 -- -- : 40404 5371 33 at at IN 40404 5371 34 from from IN 40404 5371 35 five five CD 40404 5371 36 hundred hundred CD 40404 5371 37 to to IN 40404 5371 38 four four CD 40404 5371 39 hundred hundred CD 40404 5371 40 feet foot NNS 40404 5371 41 . . . 40404 5372 1 The the DT 40404 5372 2 heavy heavy JJ 40404 5372 3 delta delta NN 40404 5372 4 which which WDT 40404 5372 5 the the DT 40404 5372 6 Mohawk Mohawk NNP 40404 5372 7 River River NNP 40404 5372 8 built build VBD 40404 5372 9 at at IN 40404 5372 10 its -PRON- PRP$ 40404 5372 11 mouth mouth NN 40404 5372 12 in in IN 40404 5372 13 this this DT 40404 5372 14 arm arm NN 40404 5372 15 of of IN 40404 5372 16 the the DT 40404 5372 17 sea sea NN 40404 5372 18 now now RB 40404 5372 19 stands stand VBZ 40404 5372 20 something something NN 40404 5372 21 more more JJR 40404 5372 22 than than IN 40404 5372 23 three three CD 40404 5372 24 hundred hundred CD 40404 5372 25 feet foot NNS 40404 5372 26 above above IN 40404 5372 27 sea sea NN 40404 5372 28 level level NN 40404 5372 29 . . . 40404 5373 1 The the DT 40404 5373 2 clays clay NNS 40404 5373 3 of of IN 40404 5373 4 the the DT 40404 5373 5 Champlain Champlain NNP 40404 5373 6 subsidence subsidence NN 40404 5373 7 pass pass VBP 40404 5373 8 under under IN 40404 5373 9 water water NN 40404 5373 10 near near IN 40404 5373 11 the the DT 40404 5373 12 mouth mouth NN 40404 5373 13 of of IN 40404 5373 14 the the DT 40404 5373 15 Hudson Hudson NNP 40404 5373 16 , , , 40404 5373 17 and and CC 40404 5373 18 in in IN 40404 5373 19 northern northern JJ 40404 5373 20 New New NNP 40404 5373 21 Jersey Jersey NNP 40404 5373 22 they -PRON- PRP 40404 5373 23 occur occur VBP 40404 5373 24 two two CD 40404 5373 25 hundred hundred CD 40404 5373 26 feet foot NNS 40404 5373 27 below below IN 40404 5373 28 tide tide NN 40404 5373 29 . . . 40404 5374 1 In in IN 40404 5374 2 these these DT 40404 5374 3 elevations elevation NNS 40404 5374 4 we -PRON- PRP 40404 5374 5 have have VBP 40404 5374 6 measures measure NNS 40404 5374 7 of of IN 40404 5374 8 the the DT 40404 5374 9 warping warping NN 40404 5374 10 of of IN 40404 5374 11 the the DT 40404 5374 12 region region NN 40404 5374 13 since since IN 40404 5374 14 glacial glacial JJ 40404 5374 15 times time NNS 40404 5374 16 . . . 40404 5375 1 = = NFP 40404 5375 2 The the DT 40404 5375 3 western western JJ 40404 5375 4 United United NNP 40404 5375 5 States States NNP 40404 5375 6 in in IN 40404 5375 7 glacial glacial JJ 40404 5375 8 times.= times.= NN 40404 5375 9 The the DT 40404 5375 10 western western JJ 40404 5375 11 United United NNP 40404 5375 12 States States NNP 40404 5375 13 was be VBD 40404 5375 14 not not RB 40404 5375 15 covered cover VBN 40404 5375 16 during during IN 40404 5375 17 the the DT 40404 5375 18 Pleistocene Pleistocene NNP 40404 5375 19 by by IN 40404 5375 20 any any DT 40404 5375 21 general general JJ 40404 5375 22 ice ice NN 40404 5375 23 sheet sheet NN 40404 5375 24 , , , 40404 5375 25 but but CC 40404 5375 26 all all PDT 40404 5375 27 the the DT 40404 5375 28 high high JJ 40404 5375 29 ranges range NNS 40404 5375 30 were be VBD 40404 5375 31 capped cap VBN 40404 5375 32 with with IN 40404 5375 33 permanent permanent JJ 40404 5375 34 snow snow NN 40404 5375 35 and and CC 40404 5375 36 nourished nourish VBD 40404 5375 37 valley valley NNP 40404 5375 38 glaciers glacier NNS 40404 5375 39 , , , 40404 5375 40 often often RB 40404 5375 41 many many JJ 40404 5375 42 times time NNS 40404 5375 43 the the DT 40404 5375 44 size size NN 40404 5375 45 of of IN 40404 5375 46 the the DT 40404 5375 47 existing exist VBG 40404 5375 48 glaciers glacier NNS 40404 5375 49 of of IN 40404 5375 50 the the DT 40404 5375 51 Alps Alps NNPS 40404 5375 52 . . . 40404 5376 1 In in IN 40404 5376 2 almost almost RB 40404 5376 3 every every DT 40404 5376 4 valley valley NN 40404 5376 5 of of IN 40404 5376 6 the the DT 40404 5376 7 Sierras Sierras NNPS 40404 5376 8 and and CC 40404 5376 9 the the DT 40404 5376 10 Rockies rockie NNS 40404 5376 11 the the DT 40404 5376 12 records record NNS 40404 5376 13 of of IN 40404 5376 14 these these DT 40404 5376 15 vanished vanish VBN 40404 5376 16 ice ice NN 40404 5376 17 streams stream NNS 40404 5376 18 may may MD 40404 5376 19 be be VB 40404 5376 20 found find VBN 40404 5376 21 in in IN 40404 5376 22 cirques cirque NNS 40404 5376 23 , , , 40404 5376 24 glacial glacial JJ 40404 5376 25 troughs trough NNS 40404 5376 26 , , , 40404 5376 27 roches roche VBZ 40404 5376 28 moutonnées moutonnées IN 40404 5376 29 , , , 40404 5376 30 and and CC 40404 5376 31 morainic morainic JJ 40404 5376 32 deposits deposit NNS 40404 5376 33 . . . 40404 5377 1 It -PRON- PRP 40404 5377 2 was be VBD 40404 5377 3 during during IN 40404 5377 4 the the DT 40404 5377 5 Glacial Glacial NNP 40404 5377 6 epoch epoch NN 40404 5377 7 that that WDT 40404 5377 8 Lakes Lakes NNP 40404 5377 9 Bonneville Bonneville NNP 40404 5377 10 and and CC 40404 5377 11 Lahontan Lahontan NNP 40404 5377 12 were be VBD 40404 5377 13 established establish VBN 40404 5377 14 in in IN 40404 5377 15 the the DT 40404 5377 16 Great Great NNP 40404 5377 17 Basin Basin NNP 40404 5377 18 , , , 40404 5377 19 whose whose WP$ 40404 5377 20 climate climate NN 40404 5377 21 must must MD 40404 5377 22 then then RB 40404 5377 23 have have VB 40404 5377 24 been be VBN 40404 5377 25 much much RB 40404 5377 26 more more JJR 40404 5377 27 moist moist JJ 40404 5377 28 than than IN 40404 5377 29 now now RB 40404 5377 30 . . . 40404 5378 1 [ [ -LRB- 40404 5378 2 Illustration illustration NN 40404 5378 3 : : : 40404 5378 4 Fig Fig NNP 40404 5378 5 . . . 40404 5379 1 367 367 CD 40404 5379 2 . . . 40404 5380 1 A a DT 40404 5380 2 Valley Valley NNP 40404 5380 3 in in IN 40404 5380 4 the the DT 40404 5380 5 Driftless Driftless NNP 40404 5380 6 Area area NN 40404 5380 7 ] ] -RRB- 40404 5380 8 = = NFP 40404 5380 9 The the DT 40404 5380 10 driftless driftless JJ 40404 5380 11 area.= area.= VBN 40404 5380 12 In in IN 40404 5380 13 the the DT 40404 5380 14 upper upper JJ 40404 5380 15 Mississippi Mississippi NNP 40404 5380 16 valley valley NN 40404 5380 17 there there EX 40404 5380 18 is be VBZ 40404 5380 19 an an DT 40404 5380 20 area area NN 40404 5380 21 of of IN 40404 5380 22 about about RB 40404 5380 23 ten ten CD 40404 5380 24 thousand thousand CD 40404 5380 25 square square JJ 40404 5380 26 miles mile NNS 40404 5380 27 in in IN 40404 5380 28 southwestern southwestern JJ 40404 5380 29 Wisconsin Wisconsin NNP 40404 5380 30 and and CC 40404 5380 31 the the DT 40404 5380 32 adjacent adjacent JJ 40404 5380 33 parts part NNS 40404 5380 34 of of IN 40404 5380 35 Iowa Iowa NNP 40404 5380 36 and and CC 40404 5380 37 Minnesota Minnesota NNP 40404 5380 38 , , , 40404 5380 39 which which WDT 40404 5380 40 escaped escape VBD 40404 5380 41 the the DT 40404 5380 42 ice ice NN 40404 5380 43 invasions invasion NNS 40404 5380 44 . . . 40404 5381 1 The the DT 40404 5381 2 rocks rock NNS 40404 5381 3 are be VBP 40404 5381 4 covered cover VBN 40404 5381 5 with with IN 40404 5381 6 residual residual JJ 40404 5381 7 clays clay NNS 40404 5381 8 , , , 40404 5381 9 the the DT 40404 5381 10 product product NN 40404 5381 11 of of IN 40404 5381 12 long long JJ 40404 5381 13 preglacial preglacial JJ 40404 5381 14 weathering weathering NN 40404 5381 15 . . . 40404 5382 1 The the DT 40404 5382 2 region region NN 40404 5382 3 is be VBZ 40404 5382 4 an an DT 40404 5382 5 ancient ancient JJ 40404 5382 6 peneplain peneplain NN 40404 5382 7 , , , 40404 5382 8 uplifted uplift VBN 40404 5382 9 and and CC 40404 5382 10 dissected dissect VBN 40404 5382 11 in in IN 40404 5382 12 late late JJ 40404 5382 13 Tertiary Tertiary NNP 40404 5382 14 times time NNS 40404 5382 15 , , , 40404 5382 16 with with IN 40404 5382 17 mature mature JJ 40404 5382 18 valleys valley NNS 40404 5382 19 whose whose WP$ 40404 5382 20 gentle gentle JJ 40404 5382 21 gradients gradient NNS 40404 5382 22 are be VBP 40404 5382 23 unbroken unbroken VBN 40404 5382 24 by by IN 40404 5382 25 waterfalls waterfall NNS 40404 5382 26 and and CC 40404 5382 27 rapids rapid NNS 40404 5382 28 . . . 40404 5383 1 Thus thus RB 40404 5383 2 the the DT 40404 5383 3 driftless driftless JJ 40404 5383 4 area area NN 40404 5383 5 is be VBZ 40404 5383 6 in in IN 40404 5383 7 strong strong JJ 40404 5383 8 contrast contrast NN 40404 5383 9 with with IN 40404 5383 10 the the DT 40404 5383 11 immature immature NNP 40404 5383 12 drift drift NN 40404 5383 13 topography topography NN 40404 5383 14 about about IN 40404 5383 15 it -PRON- PRP 40404 5383 16 , , , 40404 5383 17 where where WRB 40404 5383 18 lakes lake NNS 40404 5383 19 and and CC 40404 5383 20 waterfalls waterfall NNS 40404 5383 21 are be VBP 40404 5383 22 common common JJ 40404 5383 23 . . . 40404 5384 1 It -PRON- PRP 40404 5384 2 is be VBZ 40404 5384 3 a a DT 40404 5384 4 bit bit NN 40404 5384 5 of of IN 40404 5384 6 preglacial preglacial JJ 40404 5384 7 landscape landscape NN 40404 5384 8 , , , 40404 5384 9 showing show VBG 40404 5384 10 the the DT 40404 5384 11 condition condition NN 40404 5384 12 of of IN 40404 5384 13 the the DT 40404 5384 14 entire entire JJ 40404 5384 15 region region NN 40404 5384 16 before before IN 40404 5384 17 the the DT 40404 5384 18 Glacial Glacial NNP 40404 5384 19 epoch epoch NN 40404 5384 20 . . . 40404 5385 1 The the DT 40404 5385 2 driftless driftless JJ 40404 5385 3 area area NN 40404 5385 4 lay lie VBD 40404 5385 5 to to IN 40404 5385 6 one one CD 40404 5385 7 side side NN 40404 5385 8 of of IN 40404 5385 9 the the DT 40404 5385 10 main main JJ 40404 5385 11 track track NN 40404 5385 12 of of IN 40404 5385 13 both both CC 40404 5385 14 the the DT 40404 5385 15 Keewatin Keewatin NNP 40404 5385 16 and and CC 40404 5385 17 the the DT 40404 5385 18 Labrador Labrador NNP 40404 5385 19 ice ice NN 40404 5385 20 fields field NNS 40404 5385 21 , , , 40404 5385 22 and and CC 40404 5385 23 at at IN 40404 5385 24 the the DT 40404 5385 25 north north NN 40404 5385 26 it -PRON- PRP 40404 5385 27 was be VBD 40404 5385 28 protected protect VBN 40404 5385 29 by by IN 40404 5385 30 the the DT 40404 5385 31 upland upland JJ 40404 5385 32 south south NN 40404 5385 33 of of IN 40404 5385 34 Lake Lake NNP 40404 5385 35 Superior Superior NNP 40404 5385 36 , , , 40404 5385 37 which which WDT 40404 5385 38 weakened weaken VBD 40404 5385 39 and and CC 40404 5385 40 retarded retard VBD 40404 5385 41 the the DT 40404 5385 42 movement movement NN 40404 5385 43 of of IN 40404 5385 44 the the DT 40404 5385 45 ice ice NN 40404 5385 46 . . . 40404 5386 1 South south RB 40404 5386 2 of of IN 40404 5386 3 the the DT 40404 5386 4 driftless driftless JJ 40404 5386 5 area area NN 40404 5386 6 the the DT 40404 5386 7 Mississippi Mississippi NNP 40404 5386 8 valley valley NN 40404 5386 9 was be VBD 40404 5386 10 invaded invade VBN 40404 5386 11 at at IN 40404 5386 12 different different JJ 40404 5386 13 times time NNS 40404 5386 14 by by IN 40404 5386 15 ice ice NN 40404 5386 16 sheets sheet NNS 40404 5386 17 from from IN 40404 5386 18 the the DT 40404 5386 19 west,--the west,--the NNP 40404 5386 20 Kansan Kansan NNP 40404 5386 21 and and CC 40404 5386 22 the the DT 40404 5386 23 Iowan,--and Iowan,--and NNP 40404 5386 24 again again RB 40404 5386 25 by by IN 40404 5386 26 the the DT 40404 5386 27 Illinoian illinoian JJ 40404 5386 28 ice ice NN 40404 5386 29 sheet sheet NN 40404 5386 30 from from IN 40404 5386 31 the the DT 40404 5386 32 east east NN 40404 5386 33 . . . 40404 5387 1 Again again RB 40404 5387 2 and and CC 40404 5387 3 again again RB 40404 5387 4 the the DT 40404 5387 5 Mississippi Mississippi NNP 40404 5387 6 River River NNP 40404 5387 7 was be VBD 40404 5387 8 pushed push VBN 40404 5387 9 to to IN 40404 5387 10 one one CD 40404 5387 11 side side NN 40404 5387 12 or or CC 40404 5387 13 the the DT 40404 5387 14 other other JJ 40404 5387 15 of of IN 40404 5387 16 its -PRON- PRP$ 40404 5387 17 path path NN 40404 5387 18 . . . 40404 5388 1 The the DT 40404 5388 2 ancient ancient JJ 40404 5388 3 channel channel NN 40404 5388 4 which which WDT 40404 5388 5 it -PRON- PRP 40404 5388 6 held hold VBD 40404 5388 7 along along IN 40404 5388 8 the the DT 40404 5388 9 Illinoian illinoian JJ 40404 5388 10 ice ice NN 40404 5388 11 front front NN 40404 5388 12 has have VBZ 40404 5388 13 been be VBN 40404 5388 14 traced trace VBN 40404 5388 15 through through IN 40404 5388 16 southeastern southeastern JJ 40404 5388 17 Iowa Iowa NNP 40404 5388 18 for for IN 40404 5388 19 many many JJ 40404 5388 20 miles mile NNS 40404 5388 21 . . . 40404 5389 1 [ [ -LRB- 40404 5389 2 Illustration illustration NN 40404 5389 3 : : : 40404 5389 4 Fig Fig NNP 40404 5389 5 . . . 40404 5390 1 368 368 CD 40404 5390 2 . . . 40404 5391 1 Cross Cross NNP 40404 5391 2 Section Section NNP 40404 5391 3 of of IN 40404 5391 4 a a DT 40404 5391 5 Valley Valley NNP 40404 5391 6 in in IN 40404 5391 7 Eastern Eastern NNP 40404 5391 8 Iowa Iowa NNP 40404 5391 9 _ _ NNP 40404 5391 10 a a DT 40404 5391 11 _ _ NNP 40404 5391 12 , , , 40404 5391 13 country country NN 40404 5391 14 rock rock NN 40404 5391 15 ; ; : 40404 5391 16 _ _ NNP 40404 5391 17 b b NNP 40404 5391 18 _ _ NNP 40404 5391 19 , , , 40404 5391 20 Kansan Kansan NNP 40404 5391 21 till till IN 40404 5391 22 ; ; : 40404 5391 23 _ _ NNP 40404 5391 24 c c NNP 40404 5391 25 _ _ NNP 40404 5391 26 , , , 40404 5391 27 loess loess NN 40404 5391 28 ; ; : 40404 5391 29 _ _ NNP 40404 5391 30 t t NNP 40404 5391 31 _ _ NNP 40404 5391 32 , , , 40404 5391 33 terrace terrace NN 40404 5391 34 of of IN 40404 5391 35 reddish reddish JJ 40404 5391 36 sands sand NNS 40404 5391 37 and and CC 40404 5391 38 decayed decay VBN 40404 5391 39 pebbles pebble NNS 40404 5391 40 above above IN 40404 5391 41 reach reach NN 40404 5391 42 of of IN 40404 5391 43 present present JJ 40404 5391 44 stream stream NN 40404 5391 45 ; ; : 40404 5391 46 _ _ NNP 40404 5391 47 s s POS 40404 5391 48 _ _ NNP 40404 5391 49 , , , 40404 5391 50 stream stream NN 40404 5391 51 ; ; : 40404 5391 52 _ _ NNP 40404 5391 53 fp fp NNP 40404 5391 54 _ _ NNP 40404 5391 55 , , , 40404 5391 56 flood flood NN 40404 5391 57 plain plain NN 40404 5391 58 of of IN 40404 5391 59 _ _ NNP 40404 5391 60 s s NNP 40404 5391 61 _ _ NNP 40404 5391 62 . . . 40404 5392 1 What what WP 40404 5392 2 is be VBZ 40404 5392 3 the the DT 40404 5392 4 age age NN 40404 5392 5 of of IN 40404 5392 6 rock rock NN 40404 5392 7 - - HYPH 40404 5392 8 cut cut VBN 40404 5392 9 valley valley NN 40404 5392 10 and and CC 40404 5392 11 of of IN 40404 5392 12 the the DT 40404 5392 13 alluvium alluvium NN 40404 5392 14 which which WDT 40404 5392 15 partially partially RB 40404 5392 16 fills fill VBZ 40404 5392 17 it -PRON- PRP 40404 5392 18 , , , 40404 5392 19 compared compare VBN 40404 5392 20 with with IN 40404 5392 21 that that DT 40404 5392 22 of of IN 40404 5392 23 the the DT 40404 5392 24 Kansan Kansan NNP 40404 5392 25 till till IN 40404 5392 26 ? ? . 40404 5393 1 with with IN 40404 5393 2 that that DT 40404 5393 3 of of IN 40404 5393 4 the the DT 40404 5393 5 loess loess NN 40404 5393 6 ? ? . 40404 5394 1 Give give VB 40404 5394 2 the the DT 40404 5394 3 complete complete JJ 40404 5394 4 history history NN 40404 5394 5 recorded record VBN 40404 5394 6 in in IN 40404 5394 7 the the DT 40404 5394 8 section section NN 40404 5394 9 . . . 40404 5394 10 ] ] -RRB- 40404 5395 1 = = NFP 40404 5395 2 Benefits benefit NNS 40404 5395 3 of of IN 40404 5395 4 glaciation.= glaciation.= NNS 40404 5395 5 Like like IN 40404 5395 6 the the DT 40404 5395 7 driftless driftless JJ 40404 5395 8 area area NN 40404 5395 9 , , , 40404 5395 10 the the DT 40404 5395 11 preglacial preglacial JJ 40404 5395 12 surface surface NN 40404 5395 13 over over IN 40404 5395 14 which which WDT 40404 5395 15 the the DT 40404 5395 16 ice ice NN 40404 5395 17 advanced advance VBD 40404 5395 18 seems seem VBZ 40404 5395 19 to to TO 40404 5395 20 have have VB 40404 5395 21 been be VBN 40404 5395 22 well well RB 40404 5395 23 dissected dissect VBN 40404 5395 24 after after IN 40404 5395 25 the the DT 40404 5395 26 late late JJ 40404 5395 27 Tertiary tertiary JJ 40404 5395 28 uplifts uplift NNS 40404 5395 29 , , , 40404 5395 30 and and CC 40404 5395 31 to to TO 40404 5395 32 have have VB 40404 5395 33 been be VBN 40404 5395 34 carved carve VBN 40404 5395 35 in in IN 40404 5395 36 many many JJ 40404 5395 37 places place NNS 40404 5395 38 to to TO 40404 5395 39 steep steep VB 40404 5395 40 valley valley NN 40404 5395 41 slopes slope NNS 40404 5395 42 and and CC 40404 5395 43 rugged rugged JJ 40404 5395 44 hills hill NNS 40404 5395 45 . . . 40404 5396 1 The the DT 40404 5396 2 retreating retreat VBG 40404 5396 3 ice ice NN 40404 5396 4 sheets sheet NNS 40404 5396 5 , , , 40404 5396 6 which which WDT 40404 5396 7 left leave VBD 40404 5396 8 smooth smooth JJ 40404 5396 9 plains plain NNS 40404 5396 10 and and CC 40404 5396 11 gently gently RB 40404 5396 12 rolling roll VBG 40404 5396 13 country country NN 40404 5396 14 over over IN 40404 5396 15 the the DT 40404 5396 16 wide wide JJ 40404 5396 17 belt belt NN 40404 5396 18 where where WRB 40404 5396 19 glacial glacial JJ 40404 5396 20 deposition deposition NN 40404 5396 21 exceeded exceed VBD 40404 5396 22 glacial glacial JJ 40404 5396 23 erosion erosion NN 40404 5396 24 , , , 40404 5396 25 have have VBP 40404 5396 26 made make VBN 40404 5396 27 travel travel NN 40404 5396 28 and and CC 40404 5396 29 transportation transportation NN 40404 5396 30 easier easy JJR 40404 5396 31 than than IN 40404 5396 32 they -PRON- PRP 40404 5396 33 otherwise otherwise RB 40404 5396 34 would would MD 40404 5396 35 have have VB 40404 5396 36 been be VBN 40404 5396 37 . . . 40404 5397 1 The the DT 40404 5397 2 preglacial preglacial JJ 40404 5397 3 subsoils subsoil NNS 40404 5397 4 were be VBD 40404 5397 5 residual residual JJ 40404 5397 6 clays clay NNS 40404 5397 7 and and CC 40404 5397 8 sands sand NNS 40404 5397 9 , , , 40404 5397 10 composed compose VBN 40404 5397 11 of of IN 40404 5397 12 the the DT 40404 5397 13 insoluble insoluble JJ 40404 5397 14 elements element NNS 40404 5397 15 of of IN 40404 5397 16 the the DT 40404 5397 17 country country NN 40404 5397 18 rock rock NN 40404 5397 19 of of IN 40404 5397 20 the the DT 40404 5397 21 locality locality NN 40404 5397 22 , , , 40404 5397 23 with with IN 40404 5397 24 some some DT 40404 5397 25 minglings mingling NNS 40404 5397 26 of of IN 40404 5397 27 its -PRON- PRP$ 40404 5397 28 soluble soluble JJ 40404 5397 29 parts part NNS 40404 5397 30 still still RB 40404 5397 31 undissolved undissolve VBD 40404 5397 32 . . . 40404 5398 1 The the DT 40404 5398 2 glacial glacial JJ 40404 5398 3 subsoils subsoil NNS 40404 5398 4 are be VBP 40404 5398 5 made make VBN 40404 5398 6 of of IN 40404 5398 7 rocks rock NNS 40404 5398 8 of of IN 40404 5398 9 many many JJ 40404 5398 10 kinds kind NNS 40404 5398 11 , , , 40404 5398 12 still still RB 40404 5398 13 undecayed undecayed JJ 40404 5398 14 and and CC 40404 5398 15 largely largely RB 40404 5398 16 ground grind VBN 40404 5398 17 to to IN 40404 5398 18 powder powder NN 40404 5398 19 . . . 40404 5399 1 They -PRON- PRP 40404 5399 2 thus thus RB 40404 5399 3 contain contain VBP 40404 5399 4 an an DT 40404 5399 5 inexhaustible inexhaustible JJ 40404 5399 6 store store NN 40404 5399 7 of of IN 40404 5399 8 the the DT 40404 5399 9 mineral mineral NN 40404 5399 10 foods food NNS 40404 5399 11 of of IN 40404 5399 12 plants plant NNS 40404 5399 13 , , , 40404 5399 14 and and CC 40404 5399 15 in in IN 40404 5399 16 a a DT 40404 5399 17 form form NN 40404 5399 18 made make VBN 40404 5399 19 easily easily RB 40404 5399 20 ready ready JJ 40404 5399 21 for for IN 40404 5399 22 plant plant NN 40404 5399 23 use use NN 40404 5399 24 . . . 40404 5400 1 On on IN 40404 5400 2 the the DT 40404 5400 3 preglacial preglacial JJ 40404 5400 4 hillsides hillside NNS 40404 5400 5 the the DT 40404 5400 6 humus humus NNP 40404 5400 7 layer layer NN 40404 5400 8 must must MD 40404 5400 9 have have VB 40404 5400 10 been be VBN 40404 5400 11 comparatively comparatively RB 40404 5400 12 thin thin JJ 40404 5400 13 , , , 40404 5400 14 while while IN 40404 5400 15 the the DT 40404 5400 16 broad broad JJ 40404 5400 17 glacial glacial JJ 40404 5400 18 plains plain NNS 40404 5400 19 have have VBP 40404 5400 20 gathered gather VBN 40404 5400 21 deep deep JJ 40404 5400 22 black black JJ 40404 5400 23 soils soil NNS 40404 5400 24 , , , 40404 5400 25 rich rich JJ 40404 5400 26 in in IN 40404 5400 27 carbon carbon NN 40404 5400 28 and and CC 40404 5400 29 nitrogen nitrogen NN 40404 5400 30 taken take VBN 40404 5400 31 from from IN 40404 5400 32 the the DT 40404 5400 33 atmosphere atmosphere NN 40404 5400 34 . . . 40404 5401 1 To to IN 40404 5401 2 these these DT 40404 5401 3 soils soil NNS 40404 5401 4 and and CC 40404 5401 5 subsoils subsoil VBZ 40404 5401 6 a a DT 40404 5401 7 large large JJ 40404 5401 8 part part NN 40404 5401 9 of of IN 40404 5401 10 the the DT 40404 5401 11 wealth wealth NN 40404 5401 12 and and CC 40404 5401 13 prosperity prosperity NN 40404 5401 14 of of IN 40404 5401 15 the the DT 40404 5401 16 glaciated glaciated JJ 40404 5401 17 regions region NNS 40404 5401 18 of of IN 40404 5401 19 our -PRON- PRP$ 40404 5401 20 country country NN 40404 5401 21 must must MD 40404 5401 22 be be VB 40404 5401 23 attributed attribute VBN 40404 5401 24 . . . 40404 5402 1 The the DT 40404 5402 2 ice ice NN 40404 5402 3 invasions invasion NNS 40404 5402 4 have have VBP 40404 5402 5 also also RB 40404 5402 6 added add VBN 40404 5402 7 very very RB 40404 5402 8 largely largely RB 40404 5402 9 to to IN 40404 5402 10 the the DT 40404 5402 11 water water NN 40404 5402 12 power power NN 40404 5402 13 of of IN 40404 5402 14 the the DT 40404 5402 15 country country NN 40404 5402 16 . . . 40404 5403 1 The the DT 40404 5403 2 rivers river NNS 40404 5403 3 which which WDT 40404 5403 4 in in IN 40404 5403 5 preglacial preglacial JJ 40404 5403 6 times time NNS 40404 5403 7 were be VBD 40404 5403 8 flowing flow VBG 40404 5403 9 over over IN 40404 5403 10 graded grade VBN 40404 5403 11 courses course NNS 40404 5403 12 for for IN 40404 5403 13 the the DT 40404 5403 14 most most JJS 40404 5403 15 part part NN 40404 5403 16 , , , 40404 5403 17 were be VBD 40404 5403 18 pushed push VBN 40404 5403 19 from from IN 40404 5403 20 their -PRON- PRP$ 40404 5403 21 old old JJ 40404 5403 22 valleys valley NNS 40404 5403 23 and and CC 40404 5403 24 set set VBN 40404 5403 25 to to TO 40404 5403 26 flow flow VB 40404 5403 27 on on IN 40404 5403 28 higher high JJR 40404 5403 29 levels level NNS 40404 5403 30 , , , 40404 5403 31 where where WRB 40404 5403 32 they -PRON- PRP 40404 5403 33 have have VBP 40404 5403 34 developed develop VBN 40404 5403 35 waterfalls waterfall NNS 40404 5403 36 and and CC 40404 5403 37 rapids rapid NNS 40404 5403 38 . . . 40404 5404 1 This this DT 40404 5404 2 power power NN 40404 5404 3 will will MD 40404 5404 4 probably probably RB 40404 5404 5 be be VB 40404 5404 6 fully fully RB 40404 5404 7 utilized utilize VBN 40404 5404 8 long long RB 40404 5404 9 before before IN 40404 5404 10 the the DT 40404 5404 11 coal coal NN 40404 5404 12 beds bed NNS 40404 5404 13 of of IN 40404 5404 14 the the DT 40404 5404 15 country country NN 40404 5404 16 are be VBP 40404 5404 17 exhausted exhaust VBN 40404 5404 18 , , , 40404 5404 19 and and CC 40404 5404 20 will will MD 40404 5404 21 become become VB 40404 5404 22 one one CD 40404 5404 23 of of IN 40404 5404 24 the the DT 40404 5404 25 chief chief JJ 40404 5404 26 sources source NNS 40404 5404 27 of of IN 40404 5404 28 the the DT 40404 5404 29 national national JJ 40404 5404 30 wealth wealth NN 40404 5404 31 . . . 40404 5405 1 = = NFP 40404 5405 2 The the DT 40404 5405 3 Recent recent JJ 40404 5405 4 epoch.= epoch.= NN 40404 5405 5 The the DT 40404 5405 6 deposits deposit NNS 40404 5405 7 laid lay VBN 40404 5405 8 since since IN 40404 5405 9 glacial glacial JJ 40404 5405 10 times time NNS 40404 5405 11 graduate graduate VBP 40404 5405 12 into into IN 40404 5405 13 those those DT 40404 5405 14 now now RB 40404 5405 15 forming form VBG 40404 5405 16 along along IN 40404 5405 17 the the DT 40404 5405 18 ocean ocean NN 40404 5405 19 shores shore NNS 40404 5405 20 , , , 40404 5405 21 on on IN 40404 5405 22 lake lake NNP 40404 5405 23 beds bed NNS 40404 5405 24 , , , 40404 5405 25 and and CC 40404 5405 26 in in IN 40404 5405 27 river river NN 40404 5405 28 valleys valley NNS 40404 5405 29 . . . 40404 5406 1 Slow slow JJ 40404 5406 2 and and CC 40404 5406 3 comparatively comparatively RB 40404 5406 4 slight slight JJ 40404 5406 5 changes change NNS 40404 5406 6 , , , 40404 5406 7 such such JJ 40404 5406 8 as as IN 40404 5406 9 the the DT 40404 5406 10 warpings warping NNS 40404 5406 11 of of IN 40404 5406 12 the the DT 40404 5406 13 region region NN 40404 5406 14 of of IN 40404 5406 15 the the DT 40404 5406 16 Great Great NNP 40404 5406 17 Lakes Lakes NNPS 40404 5406 18 , , , 40404 5406 19 have have VBP 40404 5406 20 brought bring VBN 40404 5406 21 about about RP 40404 5406 22 the the DT 40404 5406 23 geographical geographical JJ 40404 5406 24 conditions condition NNS 40404 5406 25 of of IN 40404 5406 26 the the DT 40404 5406 27 present present NN 40404 5406 28 . . . 40404 5407 1 The the DT 40404 5407 2 physical physical JJ 40404 5407 3 history history NN 40404 5407 4 of of IN 40404 5407 5 the the DT 40404 5407 6 Recent recent JJ 40404 5407 7 epoch epoch NN 40404 5407 8 needs need VBZ 40404 5407 9 here here RB 40404 5407 10 no no DT 40404 5407 11 special special JJ 40404 5407 12 mention mention NN 40404 5407 13 . . . 40404 5408 1 The the DT 40404 5408 2 Life Life NNP 40404 5408 3 of of IN 40404 5408 4 the the DT 40404 5408 5 Quaternary Quaternary NNP 40404 5408 6 During during IN 40404 5408 7 the the DT 40404 5408 8 entire entire JJ 40404 5408 9 Quaternary Quaternary NNP 40404 5408 10 , , , 40404 5408 11 invertebrates invertebrate NNS 40404 5408 12 and and CC 40404 5408 13 plants plant NNS 40404 5408 14 suffered suffer VBD 40404 5408 15 little little JJ 40404 5408 16 change change NN 40404 5408 17 in in IN 40404 5408 18 species,--so species,--so NNP 40404 5408 19 slowly slowly RB 40404 5408 20 are be VBP 40404 5408 21 these these DT 40404 5408 22 ancient ancient JJ 40404 5408 23 and and CC 40404 5408 24 comparatively comparatively RB 40404 5408 25 simple simple JJ 40404 5408 26 organisms organism NNS 40404 5408 27 modified modify VBN 40404 5408 28 . . . 40404 5409 1 The the DT 40404 5409 2 Mammalia Mammalia NNP 40404 5409 3 , , , 40404 5409 4 on on IN 40404 5409 5 the the DT 40404 5409 6 other other JJ 40404 5409 7 hand hand NN 40404 5409 8 , , , 40404 5409 9 have have VBP 40404 5409 10 changed change VBN 40404 5409 11 much much RB 40404 5409 12 since since IN 40404 5409 13 the the DT 40404 5409 14 beginning beginning NN 40404 5409 15 of of IN 40404 5409 16 Quaternary quaternary JJ 40404 5409 17 time time NN 40404 5409 18 : : : 40404 5409 19 the the DT 40404 5409 20 various various JJ 40404 5409 21 species specie NNS 40404 5409 22 of of IN 40404 5409 23 the the DT 40404 5409 24 present present NN 40404 5409 25 have have VBP 40404 5409 26 been be VBN 40404 5409 27 evolved evolve VBN 40404 5409 28 , , , 40404 5409 29 and and CC 40404 5409 30 some some DT 40404 5409 31 lines line NNS 40404 5409 32 have have VBP 40404 5409 33 become become VBN 40404 5409 34 extinct extinct JJ 40404 5409 35 . . . 40404 5410 1 These these DT 40404 5410 2 highly highly RB 40404 5410 3 organized organized JJ 40404 5410 4 vertebrates vertebrate NNS 40404 5410 5 are be VBP 40404 5410 6 evidently evidently RB 40404 5410 7 less less RBR 40404 5410 8 stable stable JJ 40404 5410 9 than than IN 40404 5410 10 are be VBP 40404 5410 11 lower low JJR 40404 5410 12 types type NNS 40404 5410 13 of of IN 40404 5410 14 animals animal NNS 40404 5410 15 , , , 40404 5410 16 and and CC 40404 5410 17 respond respond VB 40404 5410 18 more more RBR 40404 5410 19 rapidly rapidly RB 40404 5410 20 to to IN 40404 5410 21 changes change NNS 40404 5410 22 in in IN 40404 5410 23 the the DT 40404 5410 24 environment environment NN 40404 5410 25 . . . 40404 5411 1 = = NFP 40404 5411 2 Pleistocene Pleistocene NNP 40404 5411 3 mammals.= mammals.= CD 40404 5411 4 In in IN 40404 5411 5 the the DT 40404 5411 6 Pleistocene Pleistocene NNP 40404 5411 7 the the DT 40404 5411 8 Mammalia Mammalia NNP 40404 5411 9 reached reach VBD 40404 5411 10 their -PRON- PRP$ 40404 5411 11 culmination culmination NN 40404 5411 12 both both CC 40404 5411 13 in in IN 40404 5411 14 size size NN 40404 5411 15 and and CC 40404 5411 16 in in IN 40404 5411 17 variety variety NN 40404 5411 18 of of IN 40404 5411 19 forms form NNS 40404 5411 20 , , , 40404 5411 21 and and CC 40404 5411 22 were be VBD 40404 5411 23 superior superior JJ 40404 5411 24 in in IN 40404 5411 25 both both PDT 40404 5411 26 these these DT 40404 5411 27 respects respect NNS 40404 5411 28 to to IN 40404 5411 29 the the DT 40404 5411 30 mammals mammal NNS 40404 5411 31 of of IN 40404 5411 32 to to IN 40404 5411 33 - - HYPH 40404 5411 34 day day NN 40404 5411 35 . . . 40404 5412 1 In in IN 40404 5412 2 Pleistocene Pleistocene NNP 40404 5412 3 times time NNS 40404 5412 4 in in IN 40404 5412 5 North North NNP 40404 5412 6 America America NNP 40404 5412 7 there there EX 40404 5412 8 were be VBD 40404 5412 9 several several JJ 40404 5412 10 species specie NNS 40404 5412 11 of of IN 40404 5412 12 bison,--one bison,--one NNP 40404 5412 13 whose whose WP$ 40404 5412 14 widespreading widespreade VBG 40404 5412 15 horns horn NNS 40404 5412 16 were be VBD 40404 5412 17 ten ten CD 40404 5412 18 feet foot NNS 40404 5412 19 from from IN 40404 5412 20 tip tip NN 40404 5412 21 to to IN 40404 5412 22 tip,--a tip,--a JJ 40404 5412 23 gigantic gigantic JJ 40404 5412 24 moose moose NN 40404 5412 25 elk elk NNP 40404 5412 26 , , , 40404 5412 27 a a DT 40404 5412 28 giant giant JJ 40404 5412 29 rodent rodent NN 40404 5412 30 ( ( -LRB- 40404 5412 31 Castoroides Castoroides NNP 40404 5412 32 ) ) -RRB- 40404 5412 33 five five CD 40404 5412 34 feet foot NNS 40404 5412 35 long long JJ 40404 5412 36 , , , 40404 5412 37 several several JJ 40404 5412 38 species specie NNS 40404 5412 39 of of IN 40404 5412 40 musk musk NNP 40404 5412 41 oxen oxen NNP 40404 5412 42 , , , 40404 5412 43 several several JJ 40404 5412 44 species specie NNS 40404 5412 45 of of IN 40404 5412 46 horses,--more horses,--more NNP 40404 5412 47 akin akin NNP 40404 5412 48 , , , 40404 5412 49 however however RB 40404 5412 50 , , , 40404 5412 51 to to IN 40404 5412 52 zebras zebras NNP 40404 5412 53 than than IN 40404 5412 54 to to IN 40404 5412 55 the the DT 40404 5412 56 modern modern JJ 40404 5412 57 horse,--a horse,--a NNP 40404 5412 58 huge huge JJ 40404 5412 59 lion lion NN 40404 5412 60 , , , 40404 5412 61 several several JJ 40404 5412 62 saber saber NNP 40404 5412 63 - - HYPH 40404 5412 64 tooth tooth NN 40404 5412 65 tigers tiger NNS 40404 5412 66 , , , 40404 5412 67 immense immense JJ 40404 5412 68 edentates edentate NNS 40404 5412 69 of of IN 40404 5412 70 several several JJ 40404 5412 71 genera genera NN 40404 5412 72 , , , 40404 5412 73 and and CC 40404 5412 74 largest large JJS 40404 5412 75 of of IN 40404 5412 76 all all PDT 40404 5412 77 the the DT 40404 5412 78 mastodon mastodon NN 40404 5412 79 and and CC 40404 5412 80 mammoth mammoth NN 40404 5412 81 . . . 40404 5413 1 [ [ -LRB- 40404 5413 2 Illustration illustration NN 40404 5413 3 : : : 40404 5413 4 Fig Fig NNP 40404 5413 5 . . . 40404 5414 1 369 369 CD 40404 5414 2 . . . 40404 5415 1 Megatherium megatherium NN 40404 5415 2 ] ] -RRB- 40404 5415 3 [ [ -LRB- 40404 5415 4 Illustration illustration NN 40404 5415 5 : : : 40404 5415 6 Fig Fig NNP 40404 5415 7 . . . 40404 5416 1 370 370 CD 40404 5416 2 . . . 40404 5417 1 Glyptodon Glyptodon NNP 40404 5417 2 ] ] -RRB- 40404 5417 3 The the DT 40404 5417 4 largest large JJS 40404 5417 5 of of IN 40404 5417 6 the the DT 40404 5417 7 edentates edentate NNS 40404 5417 8 was be VBD 40404 5417 9 the the DT 40404 5417 10 Megatherium Megatherium NNP 40404 5417 11 , , , 40404 5417 12 a. a. NN 40404 5417 13 clumsy clumsy JJ 40404 5417 14 ground ground NN 40404 5417 15 sloth sloth RB 40404 5417 16 bigger big JJR 40404 5417 17 than than IN 40404 5417 18 a a DT 40404 5417 19 rhinoceros rhinoceros NN 40404 5417 20 . . . 40404 5418 1 The the DT 40404 5418 2 bones bone NNS 40404 5418 3 of of IN 40404 5418 4 the the DT 40404 5418 5 Megatherium Megatherium NNP 40404 5418 6 are be VBP 40404 5418 7 extraordinarily extraordinarily RB 40404 5418 8 massive,--the massive,--the XX 40404 5418 9 thigh thigh NN 40404 5418 10 bone bone NN 40404 5418 11 being be VBG 40404 5418 12 thrice thrice NN 40404 5418 13 as as RB 40404 5418 14 thick thick JJ 40404 5418 15 as as IN 40404 5418 16 that that DT 40404 5418 17 of of IN 40404 5418 18 an an DT 40404 5418 19 elephant,--and elephant,--and NN 40404 5418 20 the the DT 40404 5418 21 animal animal NN 40404 5418 22 seems seem VBZ 40404 5418 23 to to TO 40404 5418 24 have have VB 40404 5418 25 been be VBN 40404 5418 26 well well RB 40404 5418 27 able able JJ 40404 5418 28 to to TO 40404 5418 29 get get VB 40404 5418 30 its -PRON- PRP$ 40404 5418 31 living living NN 40404 5418 32 by by IN 40404 5418 33 overthrowing overthrow VBG 40404 5418 34 trees tree NNS 40404 5418 35 and and CC 40404 5418 36 stripping strip VBG 40404 5418 37 off off RP 40404 5418 38 their -PRON- PRP$ 40404 5418 39 leaves leave NNS 40404 5418 40 . . . 40404 5419 1 The the DT 40404 5419 2 Glyptodon Glyptodon NNP 40404 5419 3 was be VBD 40404 5419 4 a a DT 40404 5419 5 mailed mail VBN 40404 5419 6 edentate edentate NN 40404 5419 7 , , , 40404 5419 8 eight eight CD 40404 5419 9 feet foot NNS 40404 5419 10 long long JJ 40404 5419 11 , , , 40404 5419 12 resembling resemble VBG 40404 5419 13 the the DT 40404 5419 14 little little JJ 40404 5419 15 armadillo armadillo NN 40404 5419 16 . . . 40404 5420 1 These these DT 40404 5420 2 edentates edentate NNS 40404 5420 3 survived survive VBD 40404 5420 4 from from IN 40404 5420 5 Tertiary Tertiary NNP 40404 5420 6 times time NNS 40404 5420 7 , , , 40404 5420 8 and and CC 40404 5420 9 in in IN 40404 5420 10 the the DT 40404 5420 11 warmer warm JJR 40404 5420 12 stages stage NNS 40404 5420 13 of of IN 40404 5420 14 the the DT 40404 5420 15 Pleistocene Pleistocene NNP 40404 5420 16 ranged range VBD 40404 5420 17 north north NN 40404 5420 18 as as RB 40404 5420 19 far far RB 40404 5420 20 as as IN 40404 5420 21 Ohio Ohio NNP 40404 5420 22 and and CC 40404 5420 23 Oregon Oregon NNP 40404 5420 24 . . . 40404 5421 1 The the DT 40404 5421 2 great great JJ 40404 5421 3 proboscidians proboscidian NNS 40404 5421 4 of of IN 40404 5421 5 the the DT 40404 5421 6 Glacial Glacial NNP 40404 5421 7 epoch epoch NN 40404 5421 8 were be VBD 40404 5421 9 about about IN 40404 5421 10 the the DT 40404 5421 11 size size NN 40404 5421 12 of of IN 40404 5421 13 modern modern JJ 40404 5421 14 elephants elephant NNS 40404 5421 15 , , , 40404 5421 16 and and CC 40404 5421 17 somewhat somewhat RB 40404 5421 18 smaller small JJR 40404 5421 19 than than IN 40404 5421 20 their -PRON- PRP$ 40404 5421 21 ancestral ancestral JJ 40404 5421 22 species specie NNS 40404 5421 23 in in IN 40404 5421 24 the the DT 40404 5421 25 Pliocene Pliocene NNP 40404 5421 26 . . . 40404 5422 1 The the DT 40404 5422 2 _ _ NNP 40404 5422 3 Mastodon Mastodon NNP 40404 5422 4 _ _ NNP 40404 5422 5 ranged range VBD 40404 5422 6 over over IN 40404 5422 7 all all DT 40404 5422 8 North North NNP 40404 5422 9 America America NNP 40404 5422 10 south south RB 40404 5422 11 of of IN 40404 5422 12 Hudson Hudson NNP 40404 5422 13 Bay Bay NNP 40404 5422 14 , , , 40404 5422 15 but but CC 40404 5422 16 had have VBD 40404 5422 17 become become VBN 40404 5422 18 extinct extinct JJ 40404 5422 19 in in IN 40404 5422 20 the the DT 40404 5422 21 Old Old NNP 40404 5422 22 World World NNP 40404 5422 23 at at IN 40404 5422 24 the the DT 40404 5422 25 end end NN 40404 5422 26 of of IN 40404 5422 27 the the DT 40404 5422 28 Tertiary Tertiary NNP 40404 5422 29 . . . 40404 5423 1 The the DT 40404 5423 2 elephants elephant NNS 40404 5423 3 were be VBD 40404 5423 4 represented represent VBN 40404 5423 5 by by IN 40404 5423 6 the the DT 40404 5423 7 _ _ NNP 40404 5423 8 Mammoth Mammoth NNP 40404 5423 9 _ _ NNP 40404 5423 10 , , , 40404 5423 11 which which WDT 40404 5423 12 roamed roam VBD 40404 5423 13 in in IN 40404 5423 14 immense immense JJ 40404 5423 15 herds herd NNS 40404 5423 16 from from IN 40404 5423 17 our -PRON- PRP$ 40404 5423 18 middle middle JJ 40404 5423 19 states state NNS 40404 5423 20 to to IN 40404 5423 21 Alaska Alaska NNP 40404 5423 22 , , , 40404 5423 23 and and CC 40404 5423 24 from from IN 40404 5423 25 Arctic Arctic NNP 40404 5423 26 Asia Asia NNP 40404 5423 27 to to IN 40404 5423 28 the the DT 40404 5423 29 Mediterranean Mediterranean NNP 40404 5423 30 and and CC 40404 5423 31 Atlantic Atlantic NNP 40404 5423 32 . . . 40404 5424 1 It -PRON- PRP 40404 5424 2 is be VBZ 40404 5424 3 an an DT 40404 5424 4 oft oft RB 40404 5424 5 - - HYPH 40404 5424 6 told tell VBN 40404 5424 7 story story NN 40404 5424 8 how how WRB 40404 5424 9 about about IN 40404 5424 10 a a DT 40404 5424 11 century century NN 40404 5424 12 ago ago RB 40404 5424 13 , , , 40404 5424 14 near near IN 40404 5424 15 the the DT 40404 5424 16 Lena Lena NNP 40404 5424 17 River River NNP 40404 5424 18 in in IN 40404 5424 19 Siberia Siberia NNP 40404 5424 20 , , , 40404 5424 21 there there EX 40404 5424 22 was be VBD 40404 5424 23 found find VBN 40404 5424 24 the the DT 40404 5424 25 body body NN 40404 5424 26 of of IN 40404 5424 27 a a DT 40404 5424 28 mammoth mammoth NN 40404 5424 29 which which WDT 40404 5424 30 had have VBD 40404 5424 31 been be VBN 40404 5424 32 safely safely RB 40404 5424 33 preserved preserve VBN 40404 5424 34 in in IN 40404 5424 35 ice ice NN 40404 5424 36 for for IN 40404 5424 37 thousands thousand NNS 40404 5424 38 of of IN 40404 5424 39 years year NNS 40404 5424 40 , , , 40404 5424 41 how how WRB 40404 5424 42 the the DT 40404 5424 43 flesh flesh NN 40404 5424 44 was be VBD 40404 5424 45 eaten eat VBN 40404 5424 46 by by IN 40404 5424 47 dogs dog NNS 40404 5424 48 and and CC 40404 5424 49 bears bear NNS 40404 5424 50 , , , 40404 5424 51 and and CC 40404 5424 52 how how WRB 40404 5424 53 the the DT 40404 5424 54 eyes eye NNS 40404 5424 55 and and CC 40404 5424 56 hoofs hoofs NN 40404 5424 57 and and CC 40404 5424 58 portions portion NNS 40404 5424 59 of of IN 40404 5424 60 the the DT 40404 5424 61 hide hide NN 40404 5424 62 were be VBD 40404 5424 63 taken take VBN 40404 5424 64 with with IN 40404 5424 65 the the DT 40404 5424 66 skeleton skeleton NN 40404 5424 67 to to IN 40404 5424 68 St. St. NNP 40404 5424 69 Petersburg Petersburg NNP 40404 5424 70 . . . 40404 5425 1 Since since IN 40404 5425 2 then then RB 40404 5425 3 several several JJ 40404 5425 4 other other JJ 40404 5425 5 carcasses carcass NNS 40404 5425 6 of of IN 40404 5425 7 the the DT 40404 5425 8 mammoth mammoth NN 40404 5425 9 , , , 40404 5425 10 similarly similarly RB 40404 5425 11 preserved preserve VBN 40404 5425 12 in in IN 40404 5425 13 ice ice NN 40404 5425 14 , , , 40404 5425 15 have have VBP 40404 5425 16 been be VBN 40404 5425 17 found find VBN 40404 5425 18 in in IN 40404 5425 19 the the DT 40404 5425 20 same same JJ 40404 5425 21 region,--one region,--one NN 40404 5425 22 as as RB 40404 5425 23 recently recently RB 40404 5425 24 as as IN 40404 5425 25 1901 1901 CD 40404 5425 26 . . . 40404 5426 1 We -PRON- PRP 40404 5426 2 know know VBP 40404 5426 3 from from IN 40404 5426 4 these these DT 40404 5426 5 remains remain NNS 40404 5426 6 that that IN 40404 5426 7 the the DT 40404 5426 8 animal animal NN 40404 5426 9 was be VBD 40404 5426 10 clothed clothe VBN 40404 5426 11 in in IN 40404 5426 12 a a DT 40404 5426 13 coat coat NN 40404 5426 14 of of IN 40404 5426 15 long long JJ 40404 5426 16 , , , 40404 5426 17 coarse coarse JJ 40404 5426 18 hair hair NN 40404 5426 19 , , , 40404 5426 20 with with IN 40404 5426 21 thick thick JJ 40404 5426 22 brown brown JJ 40404 5426 23 fur fur NN 40404 5426 24 beneath beneath RB 40404 5426 25 . . . 40404 5427 1 [ [ -LRB- 40404 5427 2 Illustration illustration NN 40404 5427 3 : : : 40404 5427 4 Fig Fig NNP 40404 5427 5 . . . 40404 5428 1 371 371 CD 40404 5428 2 . . . 40404 5429 1 Skull Skull NNP 40404 5429 2 of of IN 40404 5429 3 Musk Musk NNP 40404 5429 4 Ox Ox NNP 40404 5429 5 , , , 40404 5429 6 from from IN 40404 5429 7 Pleistocene Pleistocene NNP 40404 5429 8 Deposits Deposits NNPS 40404 5429 9 , , , 40404 5429 10 Iowa Iowa NNP 40404 5429 11 ] ] -RRB- 40404 5429 12 = = NFP 40404 5429 13 The the DT 40404 5429 14 distribution distribution NN 40404 5429 15 of of IN 40404 5429 16 animals animal NNS 40404 5429 17 and and CC 40404 5429 18 plants.= plants.= CD 40404 5429 19 The the DT 40404 5429 20 distribution distribution NN 40404 5429 21 of of IN 40404 5429 22 species specie NNS 40404 5429 23 in in IN 40404 5429 24 the the DT 40404 5429 25 Glacial Glacial NNP 40404 5429 26 epoch epoch NN 40404 5429 27 was be VBD 40404 5429 28 far far RB 40404 5429 29 different different JJ 40404 5429 30 from from IN 40404 5429 31 that that DT 40404 5429 32 of of IN 40404 5429 33 the the DT 40404 5429 34 present present NN 40404 5429 35 . . . 40404 5430 1 In in IN 40404 5430 2 the the DT 40404 5430 3 glacial glacial JJ 40404 5430 4 stages stage NNS 40404 5430 5 arctic arctic NNP 40404 5430 6 species specie NNS 40404 5430 7 ranged range VBD 40404 5430 8 south south RB 40404 5430 9 into into IN 40404 5430 10 what what WP 40404 5430 11 are be VBP 40404 5430 12 now now RB 40404 5430 13 temperate temperate NN 40404 5430 14 latitudes latitude NNS 40404 5430 15 . . . 40404 5431 1 The the DT 40404 5431 2 walrus walrus NN 40404 5431 3 throve throve NN 40404 5431 4 along along IN 40404 5431 5 the the DT 40404 5431 6 shores shore NNS 40404 5431 7 of of IN 40404 5431 8 Virginia Virginia NNP 40404 5431 9 and and CC 40404 5431 10 the the DT 40404 5431 11 musk musk JJ 40404 5431 12 ox ox NN 40404 5431 13 grazed graze VBD 40404 5431 14 in in IN 40404 5431 15 Iowa Iowa NNP 40404 5431 16 and and CC 40404 5431 17 Kentucky Kentucky NNP 40404 5431 18 . . . 40404 5432 1 In in IN 40404 5432 2 Europe Europe NNP 40404 5432 3 the the DT 40404 5432 4 reindeer reindeer NNP 40404 5432 5 and and CC 40404 5432 6 arctic arctic NNP 40404 5432 7 fox fox NNP 40404 5432 8 reached reach VBD 40404 5432 9 the the DT 40404 5432 10 Pyrenees Pyrenees NNPS 40404 5432 11 . . . 40404 5433 1 During during IN 40404 5433 2 the the DT 40404 5433 3 Champlain Champlain NNP 40404 5433 4 depression depression NN 40404 5433 5 arctic arctic NN 40404 5433 6 shells shell NNS 40404 5433 7 lived live VBD 40404 5433 8 along along IN 40404 5433 9 the the DT 40404 5433 10 shore shore NN 40404 5433 11 of of IN 40404 5433 12 the the DT 40404 5433 13 arm arm NN 40404 5433 14 of of IN 40404 5433 15 the the DT 40404 5433 16 sea sea NN 40404 5433 17 which which WDT 40404 5433 18 covered cover VBD 40404 5433 19 the the DT 40404 5433 20 St. St. NNP 40404 5433 21 Lawrence Lawrence NNP 40404 5433 22 valley valley NN 40404 5433 23 . . . 40404 5434 1 In in IN 40404 5434 2 interglacial interglacial JJ 40404 5434 3 times time NNS 40404 5434 4 of of IN 40404 5434 5 milder milder NN 40404 5434 6 climate climate NN 40404 5434 7 the the DT 40404 5434 8 arctic arctic NNP 40404 5434 9 fauna fauna NNP 40404 5434 10 - - HYPH 40404 5434 11 flora flora NNP 40404 5434 12 retreated retreat VBD 40404 5434 13 , , , 40404 5434 14 and and CC 40404 5434 15 their -PRON- PRP$ 40404 5434 16 places place NNS 40404 5434 17 were be VBD 40404 5434 18 taken take VBN 40404 5434 19 by by IN 40404 5434 20 plants plant NNS 40404 5434 21 and and CC 40404 5434 22 animals animal NNS 40404 5434 23 from from IN 40404 5434 24 the the DT 40404 5434 25 south south NN 40404 5434 26 . . . 40404 5435 1 Peccaries peccary NNS 40404 5435 2 , , , 40404 5435 3 now now RB 40404 5435 4 found find VBN 40404 5435 5 in in IN 40404 5435 6 Texas Texas NNP 40404 5435 7 , , , 40404 5435 8 ranged range VBD 40404 5435 9 into into IN 40404 5435 10 Michigan Michigan NNP 40404 5435 11 and and CC 40404 5435 12 New New NNP 40404 5435 13 York York NNP 40404 5435 14 , , , 40404 5435 15 while while IN 40404 5435 16 great great JJ 40404 5435 17 sloths sloth NNS 40404 5435 18 from from IN 40404 5435 19 South South NNP 40404 5435 20 America America NNP 40404 5435 21 reached reach VBD 40404 5435 22 the the DT 40404 5435 23 middle middle JJ 40404 5435 24 states state NNS 40404 5435 25 . . . 40404 5436 1 Interglacial interglacial JJ 40404 5436 2 beds bed NNS 40404 5436 3 at at IN 40404 5436 4 Toronto Toronto NNP 40404 5436 5 , , , 40404 5436 6 Canada Canada NNP 40404 5436 7 , , , 40404 5436 8 contain contain NN 40404 5436 9 remains remain VBZ 40404 5436 10 of of IN 40404 5436 11 forests forest NNS 40404 5436 12 of of IN 40404 5436 13 maple maple NN 40404 5436 14 , , , 40404 5436 15 elm elm NNP 40404 5436 16 , , , 40404 5436 17 and and CC 40404 5436 18 papaw papaw RB 40404 5436 19 , , , 40404 5436 20 with with IN 40404 5436 21 mollusks mollusk NNS 40404 5436 22 now now RB 40404 5436 23 living live VBG 40404 5436 24 in in IN 40404 5436 25 the the DT 40404 5436 26 Mississippi Mississippi NNP 40404 5436 27 basin basin NN 40404 5436 28 . . . 40404 5437 1 What what WP 40404 5437 2 changes change VBZ 40404 5437 3 in in IN 40404 5437 4 the the DT 40404 5437 5 forests forest NNS 40404 5437 6 of of IN 40404 5437 7 your -PRON- PRP$ 40404 5437 8 region region NN 40404 5437 9 would would MD 40404 5437 10 be be VB 40404 5437 11 brought bring VBN 40404 5437 12 about about RP 40404 5437 13 , , , 40404 5437 14 and and CC 40404 5437 15 in in IN 40404 5437 16 what what WDT 40404 5437 17 way way NN 40404 5437 18 , , , 40404 5437 19 if if IN 40404 5437 20 the the DT 40404 5437 21 climate climate NN 40404 5437 22 should should MD 40404 5437 23 very very RB 40404 5437 24 gradually gradually RB 40404 5437 25 grow grow VB 40404 5437 26 colder cold JJR 40404 5437 27 ? ? . 40404 5438 1 What what WP 40404 5438 2 changes change VBZ 40404 5438 3 if if IN 40404 5438 4 it -PRON- PRP 40404 5438 5 should should MD 40404 5438 6 grow grow VB 40404 5438 7 warmer warm JJR 40404 5438 8 ? ? . 40404 5439 1 On on IN 40404 5439 2 the the DT 40404 5439 3 Alps Alps NNP 40404 5439 4 and and CC 40404 5439 5 the the DT 40404 5439 6 highest high JJS 40404 5439 7 summits summit NNS 40404 5439 8 of of IN 40404 5439 9 the the DT 40404 5439 10 White White NNP 40404 5439 11 Mountains Mountains NNPS 40404 5439 12 of of IN 40404 5439 13 New New NNP 40404 5439 14 England England NNP 40404 5439 15 are be VBP 40404 5439 16 found find VBN 40404 5439 17 colonies colony NNS 40404 5439 18 of of IN 40404 5439 19 arctic arctic JJ 40404 5439 20 species specie NNS 40404 5439 21 of of IN 40404 5439 22 plants plant NNS 40404 5439 23 and and CC 40404 5439 24 insects insect NNS 40404 5439 25 . . . 40404 5440 1 How how WRB 40404 5440 2 did do VBD 40404 5440 3 they -PRON- PRP 40404 5440 4 come come VB 40404 5440 5 to to TO 40404 5440 6 be be VB 40404 5440 7 thus thus RB 40404 5440 8 separated separate VBN 40404 5440 9 from from IN 40404 5440 10 their -PRON- PRP$ 40404 5440 11 home home NN 40404 5440 12 beyond beyond IN 40404 5440 13 the the DT 40404 5440 14 arctic arctic NNP 40404 5440 15 circle circle NN 40404 5440 16 by by IN 40404 5440 17 a a DT 40404 5440 18 thousand thousand CD 40404 5440 19 miles mile NNS 40404 5440 20 and and CC 40404 5440 21 more more JJR 40404 5440 22 of of IN 40404 5440 23 temperate temperate NN 40404 5440 24 climate climate NN 40404 5440 25 impossible impossible JJ 40404 5440 26 to to TO 40404 5440 27 cross cross VB 40404 5440 28 ? ? . 40404 5441 1 = = NFP 40404 5441 2 Man.= Man.= NNP 40404 5441 3 Along along IN 40404 5441 4 with with IN 40404 5441 5 the the DT 40404 5441 6 remains remain NNS 40404 5441 7 of of IN 40404 5441 8 the the DT 40404 5441 9 characteristic characteristic JJ 40404 5441 10 animals animal NNS 40404 5441 11 of of IN 40404 5441 12 the the DT 40404 5441 13 time time NN 40404 5441 14 which which WDT 40404 5441 15 are be VBP 40404 5441 16 now now RB 40404 5441 17 extinct extinct VBN 40404 5441 18 there there EX 40404 5441 19 have have VBP 40404 5441 20 been be VBN 40404 5441 21 found find VBN 40404 5441 22 in in IN 40404 5441 23 deposits deposit NNS 40404 5441 24 of of IN 40404 5441 25 the the DT 40404 5441 26 Glacial Glacial NNP 40404 5441 27 epoch epoch NN 40404 5441 28 in in IN 40404 5441 29 the the DT 40404 5441 30 Old Old NNP 40404 5441 31 World World NNP 40404 5441 32 relics relic NNS 40404 5441 33 of of IN 40404 5441 34 Pleistocene Pleistocene NNP 40404 5441 35 _ _ NNP 40404 5441 36 Man Man NNP 40404 5441 37 _ _ NNP 40404 5441 38 , , , 40404 5441 39 his -PRON- PRP$ 40404 5441 40 bones bone NNS 40404 5441 41 , , , 40404 5441 42 and and CC 40404 5441 43 articles article NNS 40404 5441 44 of of IN 40404 5441 45 his -PRON- PRP$ 40404 5441 46 manufacture manufacture NN 40404 5441 47 . . . 40404 5442 1 In in IN 40404 5442 2 Europe Europe NNP 40404 5442 3 , , , 40404 5442 4 where where WRB 40404 5442 5 they -PRON- PRP 40404 5442 6 have have VBP 40404 5442 7 best well RBS 40404 5442 8 been be VBN 40404 5442 9 studied study VBN 40404 5442 10 , , , 40404 5442 11 human human JJ 40404 5442 12 relics relic NNS 40404 5442 13 occur occur VBP 40404 5442 14 chiefly chiefly RB 40404 5442 15 in in IN 40404 5442 16 peat peat NNP 40404 5442 17 bogs bog NNS 40404 5442 18 , , , 40404 5442 19 in in IN 40404 5442 20 loess loess NN 40404 5442 21 , , , 40404 5442 22 in in IN 40404 5442 23 caverns cavern NNS 40404 5442 24 where where WRB 40404 5442 25 man man NN 40404 5442 26 made make VBD 40404 5442 27 his -PRON- PRP$ 40404 5442 28 home home NN 40404 5442 29 , , , 40404 5442 30 and and CC 40404 5442 31 in in IN 40404 5442 32 high high JJ 40404 5442 33 river river NN 40404 5442 34 terraces terrace NNS 40404 5442 35 sometimes sometimes RB 40404 5442 36 eighty eighty CD 40404 5442 37 and and CC 40404 5442 38 a a DT 40404 5442 39 hundred hundred CD 40404 5442 40 feet foot NNS 40404 5442 41 above above IN 40404 5442 42 the the DT 40404 5442 43 present present JJ 40404 5442 44 flood flood NN 40404 5442 45 plains plain NNS 40404 5442 46 of of IN 40404 5442 47 the the DT 40404 5442 48 streams stream NNS 40404 5442 49 . . . 40404 5443 1 In in IN 40404 5443 2 order order NN 40404 5443 3 to to TO 40404 5443 4 understand understand VB 40404 5443 5 the the DT 40404 5443 6 development development NN 40404 5443 7 of of IN 40404 5443 8 early early JJ 40404 5443 9 man man NN 40404 5443 10 , , , 40404 5443 11 we -PRON- PRP 40404 5443 12 should should MD 40404 5443 13 know know VB 40404 5443 14 that that IN 40404 5443 15 prehistoric prehistoric JJ 40404 5443 16 peoples people NNS 40404 5443 17 are be VBP 40404 5443 18 ranked rank VBN 40404 5443 19 according accord VBG 40404 5443 20 to to IN 40404 5443 21 the the DT 40404 5443 22 materials material NNS 40404 5443 23 of of IN 40404 5443 24 which which WDT 40404 5443 25 their -PRON- PRP$ 40404 5443 26 tools tool NNS 40404 5443 27 were be VBD 40404 5443 28 made make VBN 40404 5443 29 and and CC 40404 5443 30 the the DT 40404 5443 31 skill skill NN 40404 5443 32 shown show VBN 40404 5443 33 in in IN 40404 5443 34 their -PRON- PRP$ 40404 5443 35 manufacture manufacture NN 40404 5443 36 . . . 40404 5444 1 There there EX 40404 5444 2 are be VBP 40404 5444 3 thus thus RB 40404 5444 4 four four CD 40404 5444 5 well well RB 40404 5444 6 - - HYPH 40404 5444 7 marked mark VBN 40404 5444 8 stages stage NNS 40404 5444 9 of of IN 40404 5444 10 human human JJ 40404 5444 11 culture culture NN 40404 5444 12 preceding precede VBG 40404 5444 13 the the DT 40404 5444 14 written write VBN 40404 5444 15 annals annal NNS 40404 5444 16 of of IN 40404 5444 17 history history NN 40404 5444 18 : : : 40404 5444 19           _SP 40404 5444 20 4 4 CD 40404 5444 21 The the DT 40404 5444 22 Iron Iron NNP 40404 5444 23 stage stage NN 40404 5444 24 . . . 40404 5445 1 3 3 CD 40404 5445 2 The the DT 40404 5445 3 Bronze Bronze NNP 40404 5445 4 stage stage NN 40404 5445 5 . . . 40404 5446 1 2 2 CD 40404 5446 2 The the DT 40404 5446 3 Neolithic neolithic JJ 40404 5446 4 ( ( -LRB- 40404 5446 5 recent recent JJ 40404 5446 6 stone stone NN 40404 5446 7 ) ) -RRB- 40404 5446 8 stage stage NN 40404 5446 9 . . . 40404 5447 1 1 1 CD 40404 5447 2 The the DT 40404 5447 3 Paleolithic Paleolithic NNP 40404 5447 4 ( ( -LRB- 40404 5447 5 ancient ancient JJ 40404 5447 6 stone stone NN 40404 5447 7 ) ) -RRB- 40404 5447 8 stage stage NN 40404 5447 9 . . . 40404 5448 1 In in IN 40404 5448 2 the the DT 40404 5448 3 Neolithic neolithic JJ 40404 5448 4 stage stage NN 40404 5448 5 the the DT 40404 5448 6 use use NN 40404 5448 7 of of IN 40404 5448 8 the the DT 40404 5448 9 metals metal NNS 40404 5448 10 had have VBD 40404 5448 11 not not RB 40404 5448 12 yet yet RB 40404 5448 13 been be VBN 40404 5448 14 learned learn VBN 40404 5448 15 , , , 40404 5448 16 but but CC 40404 5448 17 tools tool NNS 40404 5448 18 of of IN 40404 5448 19 stone stone NN 40404 5448 20 were be VBD 40404 5448 21 carefully carefully RB 40404 5448 22 shaped shape VBN 40404 5448 23 and and CC 40404 5448 24 polished polished JJ 40404 5448 25 . . . 40404 5449 1 To to IN 40404 5449 2 this this DT 40404 5449 3 stage stage NN 40404 5449 4 the the DT 40404 5449 5 North north JJ 40404 5449 6 American american JJ 40404 5449 7 Indian Indian NNP 40404 5449 8 belonged belong VBD 40404 5449 9 at at IN 40404 5449 10 the the DT 40404 5449 11 time time NN 40404 5449 12 of of IN 40404 5449 13 the the DT 40404 5449 14 discovery discovery NN 40404 5449 15 of of IN 40404 5449 16 the the DT 40404 5449 17 continent continent NN 40404 5449 18 . . . 40404 5450 1 In in IN 40404 5450 2 the the DT 40404 5450 3 Paleolithic paleolithic JJ 40404 5450 4 stage stage NN 40404 5450 5 , , , 40404 5450 6 stone stone NN 40404 5450 7 implements implement NNS 40404 5450 8 were be VBD 40404 5450 9 chipped chip VBN 40404 5450 10 to to IN 40404 5450 11 rude rude JJ 40404 5450 12 shapes shape NNS 40404 5450 13 and and CC 40404 5450 14 left leave VBD 40404 5450 15 unpolished unpolished JJ 40404 5450 16 . . . 40404 5451 1 This this DT 40404 5451 2 , , , 40404 5451 3 the the DT 40404 5451 4 lowest low JJS 40404 5451 5 state state NN 40404 5451 6 of of IN 40404 5451 7 human human JJ 40404 5451 8 culture culture NN 40404 5451 9 , , , 40404 5451 10 has have VBZ 40404 5451 11 been be VBN 40404 5451 12 outgrown outgrow VBN 40404 5451 13 by by IN 40404 5451 14 nearly nearly RB 40404 5451 15 every every DT 40404 5451 16 savage savage JJ 40404 5451 17 tribe tribe NN 40404 5451 18 now now RB 40404 5451 19 on on IN 40404 5451 20 earth earth NN 40404 5451 21 . . . 40404 5452 1 A a DT 40404 5452 2 still still RB 40404 5452 3 earlier early JJR 40404 5452 4 stage stage NN 40404 5452 5 may may MD 40404 5452 6 once once RB 40404 5452 7 have have VB 40404 5452 8 existed exist VBN 40404 5452 9 , , , 40404 5452 10 when when WRB 40404 5452 11 man man NN 40404 5452 12 had have VBD 40404 5452 13 not not RB 40404 5452 14 learned learn VBN 40404 5452 15 so so RB 40404 5452 16 much much RB 40404 5452 17 as as IN 40404 5452 18 to to TO 40404 5452 19 shape shape VB 40404 5452 20 his -PRON- PRP$ 40404 5452 21 weapons weapon NNS 40404 5452 22 to to IN 40404 5452 23 his -PRON- PRP$ 40404 5452 24 needs need NNS 40404 5452 25 , , , 40404 5452 26 but but CC 40404 5452 27 used use VBN 40404 5452 28 chance chance NN 40404 5452 29 pebbles pebble NNS 40404 5452 30 and and CC 40404 5452 31 rock rock NN 40404 5452 32 splinters splinter NNS 40404 5452 33 in in IN 40404 5452 34 their -PRON- PRP$ 40404 5452 35 natural natural JJ 40404 5452 36 forms form NNS 40404 5452 37 ; ; : 40404 5452 38 of of IN 40404 5452 39 such such PDT 40404 5452 40 a a DT 40404 5452 41 stage stage NN 40404 5452 42 , , , 40404 5452 43 however however RB 40404 5452 44 , , , 40404 5452 45 we -PRON- PRP 40404 5452 46 have have VBP 40404 5452 47 no no DT 40404 5452 48 evidence evidence NN 40404 5452 49 . . . 40404 5453 1 [ [ -LRB- 40404 5453 2 Illustration illustration NN 40404 5453 3 : : : 40404 5453 4 Fig Fig NNP 40404 5453 5 . . . 40404 5454 1 372 372 CD 40404 5454 2 . . . 40404 5455 1 Paleolithic Paleolithic NNP 40404 5455 2 Implement Implement NNP 40404 5455 3 from from IN 40404 5455 4 Great Great NNP 40404 5455 5 Britain Britain NNP 40404 5455 6 ] ] -RRB- 40404 5455 7 = = NFP 40404 5455 8 Paleolithic paleolithic JJ 40404 5455 9 man man NN 40404 5455 10 in in RP 40404 5455 11 Europe.= Europe.= NNP 40404 5455 12 It -PRON- PRP 40404 5455 13 was be VBD 40404 5455 14 to to IN 40404 5455 15 the the DT 40404 5455 16 Paleolithic paleolithic JJ 40404 5455 17 stage stage NN 40404 5455 18 that that IN 40404 5455 19 the the DT 40404 5455 20 earliest early JJS 40404 5455 21 men man NNS 40404 5455 22 belonged belong VBD 40404 5455 23 whose whose WP$ 40404 5455 24 relics relic NNS 40404 5455 25 are be VBP 40404 5455 26 found find VBN 40404 5455 27 in in IN 40404 5455 28 Europe Europe NNP 40404 5455 29 . . . 40404 5456 1 They -PRON- PRP 40404 5456 2 had have VBD 40404 5456 3 learned learn VBN 40404 5456 4 to to TO 40404 5456 5 knock knock VB 40404 5456 6 off off RP 40404 5456 7 two two CD 40404 5456 8 - - HYPH 40404 5456 9 edged edge VBN 40404 5456 10 flakes flake NNS 40404 5456 11 from from IN 40404 5456 12 flint flint NN 40404 5456 13 pebbles pebble NNS 40404 5456 14 , , , 40404 5456 15 and and CC 40404 5456 16 to to TO 40404 5456 17 work work VB 40404 5456 18 them -PRON- PRP 40404 5456 19 into into IN 40404 5456 20 simple simple JJ 40404 5456 21 weapons weapon NNS 40404 5456 22 . . . 40404 5457 1 The the DT 40404 5457 2 great great JJ 40404 5457 3 discovery discovery NN 40404 5457 4 had have VBD 40404 5457 5 been be VBN 40404 5457 6 made make VBN 40404 5457 7 that that DT 40404 5457 8 fire fire NN 40404 5457 9 could could MD 40404 5457 10 be be VB 40404 5457 11 kindled kindle VBN 40404 5457 12 and and CC 40404 5457 13 made make VBN 40404 5457 14 use use NN 40404 5457 15 of of IN 40404 5457 16 , , , 40404 5457 17 as as IN 40404 5457 18 the the DT 40404 5457 19 charcoal charcoal NN 40404 5457 20 and and CC 40404 5457 21 the the DT 40404 5457 22 stones stone NNS 40404 5457 23 discolored discolor VBN 40404 5457 24 by by IN 40404 5457 25 heat heat NN 40404 5457 26 of of IN 40404 5457 27 their -PRON- PRP$ 40404 5457 28 ancient ancient JJ 40404 5457 29 hearths hearth NNS 40404 5457 30 attest attest VBP 40404 5457 31 . . . 40404 5458 1 Caves cave NNS 40404 5458 2 and and CC 40404 5458 3 shelters shelter NNS 40404 5458 4 beneath beneath IN 40404 5458 5 overhanging overhanging JJ 40404 5458 6 cliffs cliff NNS 40404 5458 7 were be VBD 40404 5458 8 their -PRON- PRP$ 40404 5458 9 homes home NNS 40404 5458 10 or or CC 40404 5458 11 camping camping NN 40404 5458 12 places place NNS 40404 5458 13 . . . 40404 5459 1 Paleolithic paleolithic JJ 40404 5459 2 man man NN 40404 5459 3 was be VBD 40404 5459 4 a a DT 40404 5459 5 savage savage NN 40404 5459 6 of of IN 40404 5459 7 the the DT 40404 5459 8 lowest low JJS 40404 5459 9 type type NN 40404 5459 10 , , , 40404 5459 11 who who WP 40404 5459 12 lived live VBD 40404 5459 13 by by IN 40404 5459 14 hunting hunt VBG 40404 5459 15 the the DT 40404 5459 16 wild wild JJ 40404 5459 17 beasts beast NNS 40404 5459 18 of of IN 40404 5459 19 the the DT 40404 5459 20 time time NN 40404 5459 21 . . . 40404 5460 1 Skeletons skeleton NNS 40404 5460 2 found find VBN 40404 5460 3 in in IN 40404 5460 4 certain certain JJ 40404 5460 5 caves cave NNS 40404 5460 6 in in IN 40404 5460 7 Belgium Belgium NNP 40404 5460 8 and and CC 40404 5460 9 France France NNP 40404 5460 10 represent represent VBP 40404 5460 11 perhaps perhaps RB 40404 5460 12 the the DT 40404 5460 13 earliest early JJS 40404 5460 14 race race NN 40404 5460 15 yet yet CC 40404 5460 16 found find VBN 40404 5460 17 in in IN 40404 5460 18 Europe Europe NNP 40404 5460 19 . . . 40404 5461 1 These these DT 40404 5461 2 short short JJ 40404 5461 3 , , , 40404 5461 4 broad broad RB 40404 5461 5 - - HYPH 40404 5461 6 shouldered shouldered JJ 40404 5461 7 men man NNS 40404 5461 8 , , , 40404 5461 9 muscular muscular JJ 40404 5461 10 , , , 40404 5461 11 with with IN 40404 5461 12 bent bent JJ 40404 5461 13 knees knee NNS 40404 5461 14 and and CC 40404 5461 15 stooping stoop VBG 40404 5461 16 gait gait NN 40404 5461 17 , , , 40404 5461 18 low low RB 40404 5461 19 - - HYPH 40404 5461 20 browed browe VBN 40404 5461 21 and and CC 40404 5461 22 small small JJ 40404 5461 23 of of IN 40404 5461 24 brain brain NN 40404 5461 25 , , , 40404 5461 26 were be VBD 40404 5461 27 of of IN 40404 5461 28 little little JJ 40404 5461 29 intelligence intelligence NN 40404 5461 30 and and CC 40404 5461 31 yet yet RB 40404 5461 32 truly truly RB 40404 5461 33 human human JJ 40404 5461 34 . . . 40404 5462 1 The the DT 40404 5462 2 remains remain NNS 40404 5462 3 of of IN 40404 5462 4 Pleistocene Pleistocene NNP 40404 5462 5 man man NN 40404 5462 6 are be VBP 40404 5462 7 naturally naturally RB 40404 5462 8 found find VBN 40404 5462 9 either either CC 40404 5462 10 in in IN 40404 5462 11 caverns cavern NNS 40404 5462 12 , , , 40404 5462 13 where where WRB 40404 5462 14 they -PRON- PRP 40404 5462 15 escaped escape VBD 40404 5462 16 destruction destruction NN 40404 5462 17 by by IN 40404 5462 18 the the DT 40404 5462 19 ice ice NN 40404 5462 20 sheets sheet NNS 40404 5462 21 , , , 40404 5462 22 or or CC 40404 5462 23 in in IN 40404 5462 24 deposits deposit NNS 40404 5462 25 outside outside IN 40404 5462 26 the the DT 40404 5462 27 glaciated glaciated JJ 40404 5462 28 area area NN 40404 5462 29 . . . 40404 5463 1 In in IN 40404 5463 2 both both DT 40404 5463 3 cases case NNS 40404 5463 4 it -PRON- PRP 40404 5463 5 is be VBZ 40404 5463 6 extremely extremely RB 40404 5463 7 difficult difficult JJ 40404 5463 8 , , , 40404 5463 9 or or CC 40404 5463 10 quite quite RB 40404 5463 11 impossible impossible JJ 40404 5463 12 , , , 40404 5463 13 to to TO 40404 5463 14 assign assign VB 40404 5463 15 the the DT 40404 5463 16 remains remain NNS 40404 5463 17 to to IN 40404 5463 18 definite definite JJ 40404 5463 19 glacial glacial JJ 40404 5463 20 or or CC 40404 5463 21 interglacial interglacial JJ 40404 5463 22 times time NNS 40404 5463 23 . . . 40404 5464 1 Their -PRON- PRP$ 40404 5464 2 relative relative JJ 40404 5464 3 age age NN 40404 5464 4 is be VBZ 40404 5464 5 best best RB 40404 5464 6 told tell VBN 40404 5464 7 by by IN 40404 5464 8 the the DT 40404 5464 9 fauna fauna NNS 40404 5464 10 with with IN 40404 5464 11 which which WDT 40404 5464 12 they -PRON- PRP 40404 5464 13 are be VBP 40404 5464 14 associated associate VBN 40404 5464 15 . . . 40404 5465 1 Thus thus RB 40404 5465 2 the the DT 40404 5465 3 oldest old JJS 40404 5465 4 relics relic NNS 40404 5465 5 of of IN 40404 5465 6 man man NN 40404 5465 7 are be VBP 40404 5465 8 found find VBN 40404 5465 9 with with IN 40404 5465 10 the the DT 40404 5465 11 animals animal NNS 40404 5465 12 of of IN 40404 5465 13 the the DT 40404 5465 14 late late JJ 40404 5465 15 Tertiary tertiary JJ 40404 5465 16 or or CC 40404 5465 17 early early JJ 40404 5465 18 Quaternary Quaternary NNP 40404 5465 19 , , , 40404 5465 20 such such JJ 40404 5465 21 as as IN 40404 5465 22 a a DT 40404 5465 23 species species NN 40404 5465 24 of of IN 40404 5465 25 hippopotamus hippopotamus NN 40404 5465 26 and and CC 40404 5465 27 an an DT 40404 5465 28 elephant elephant NN 40404 5465 29 more more RBR 40404 5465 30 ancient ancient JJ 40404 5465 31 than than IN 40404 5465 32 the the DT 40404 5465 33 mammoth mammoth NN 40404 5465 34 . . . 40404 5466 1 Later later RB 40404 5466 2 in in IN 40404 5466 3 age age NN 40404 5466 4 are be VBP 40404 5466 5 the the DT 40404 5466 6 remains remain NNS 40404 5466 7 found find VBN 40404 5466 8 along along IN 40404 5466 9 with with IN 40404 5466 10 the the DT 40404 5466 11 mammoth mammoth JJ 40404 5466 12 , , , 40404 5466 13 cave cave NN 40404 5466 14 bear bear NN 40404 5466 15 and and CC 40404 5466 16 cave cave VB 40404 5466 17 hyena hyena NN 40404 5466 18 , , , 40404 5466 19 and and CC 40404 5466 20 other other JJ 40404 5466 21 animals animal NNS 40404 5466 22 of of IN 40404 5466 23 glacial glacial JJ 40404 5466 24 time time NN 40404 5466 25 which which WDT 40404 5466 26 are be VBP 40404 5466 27 now now RB 40404 5466 28 extinct extinct JJ 40404 5466 29 ; ; : 40404 5466 30 while while IN 40404 5466 31 more more RBR 40404 5466 32 recent recent JJ 40404 5466 33 still still RB 40404 5466 34 are be VBP 40404 5466 35 those those DT 40404 5466 36 associated associate VBN 40404 5466 37 with with IN 40404 5466 38 the the DT 40404 5466 39 reindeer reindeer NN 40404 5466 40 , , , 40404 5466 41 which which WDT 40404 5466 42 in in IN 40404 5466 43 the the DT 40404 5466 44 last last JJ 40404 5466 45 ice ice NN 40404 5466 46 invasion invasion NN 40404 5466 47 roamed roam VBD 40404 5466 48 widely widely RB 40404 5466 49 with with IN 40404 5466 50 the the DT 40404 5466 51 mammoth mammoth NN 40404 5466 52 over over IN 40404 5466 53 central central JJ 40404 5466 54 Europe Europe NNP 40404 5466 55 . . . 40404 5467 1 [ [ -LRB- 40404 5467 2 Illustration illustration NN 40404 5467 3 : : : 40404 5467 4 Fig Fig NNP 40404 5467 5 . . . 40404 5468 1 373 373 CD 40404 5468 2 . . . 40404 5469 1 Paleolithic Paleolithic NNP 40404 5469 2 Sketch Sketch NNP 40404 5469 3 on on IN 40404 5469 4 Ivory Ivory NNP 40404 5469 5 of of IN 40404 5469 6 the the DT 40404 5469 7 Mammoth Mammoth NNP 40404 5469 8 ] ] -RRB- 40404 5469 9 = = NFP 40404 5469 10 The the DT 40404 5469 11 caves cave NNS 40404 5469 12 of of IN 40404 5469 13 southern southern JJ 40404 5469 14 France.= france.= NN 40404 5469 15 These these DT 40404 5469 16 contain contain NN 40404 5469 17 the the DT 40404 5469 18 fullest full JJS 40404 5469 19 records record NNS 40404 5469 20 of of IN 40404 5469 21 the the DT 40404 5469 22 race race NN 40404 5469 23 , , , 40404 5469 24 much much RB 40404 5469 25 like like IN 40404 5469 26 the the DT 40404 5469 27 Eskimos Eskimos NNP 40404 5469 28 in in IN 40404 5469 29 bodily bodily NNP 40404 5469 30 frame frame NN 40404 5469 31 , , , 40404 5469 32 which which WDT 40404 5469 33 lived live VBD 40404 5469 34 in in IN 40404 5469 35 western western JJ 40404 5469 36 Europe Europe NNP 40404 5469 37 at at IN 40404 5469 38 the the DT 40404 5469 39 time time NN 40404 5469 40 of of IN 40404 5469 41 the the DT 40404 5469 42 mammoth mammoth NN 40404 5469 43 and and CC 40404 5469 44 the the DT 40404 5469 45 reindeer reindeer NN 40404 5469 46 . . . 40404 5470 1 The the DT 40404 5470 2 floors floor NNS 40404 5470 3 of of IN 40404 5470 4 these these DT 40404 5470 5 caves cave NNS 40404 5470 6 are be VBP 40404 5470 7 covered cover VBN 40404 5470 8 with with IN 40404 5470 9 a a DT 40404 5470 10 layer layer NN 40404 5470 11 of of IN 40404 5470 12 bone bone NN 40404 5470 13 fragments fragment NNS 40404 5470 14 , , , 40404 5470 15 the the DT 40404 5470 16 remains remain NNS 40404 5470 17 of of IN 40404 5470 18 many many JJ 40404 5470 19 meals meal NNS 40404 5470 20 , , , 40404 5470 21 and and CC 40404 5470 22 here here RB 40404 5470 23 are be VBP 40404 5470 24 found find VBN 40404 5470 25 also also RB 40404 5470 26 various various JJ 40404 5470 27 articles article NNS 40404 5470 28 of of IN 40404 5470 29 handicraft handicraft NN 40404 5470 30 . . . 40404 5471 1 In in IN 40404 5471 2 this this DT 40404 5471 3 way way NN 40404 5471 4 we -PRON- PRP 40404 5471 5 know know VBP 40404 5471 6 that that IN 40404 5471 7 the the DT 40404 5471 8 savages savage NNS 40404 5471 9 who who WP 40404 5471 10 made make VBD 40404 5471 11 these these DT 40404 5471 12 caves cave NNS 40404 5471 13 their -PRON- PRP$ 40404 5471 14 homes home NNS 40404 5471 15 fished fish VBN 40404 5471 16 with with IN 40404 5471 17 harpoons harpoon NNS 40404 5471 18 of of IN 40404 5471 19 bone bone NN 40404 5471 20 , , , 40404 5471 21 and and CC 40404 5471 22 hunted hunt VBN 40404 5471 23 with with IN 40404 5471 24 spears spear NNS 40404 5471 25 and and CC 40404 5471 26 darts dart NNS 40404 5471 27 tipped tip VBN 40404 5471 28 with with IN 40404 5471 29 flint flint NN 40404 5471 30 and and CC 40404 5471 31 horn horn NN 40404 5471 32 . . . 40404 5472 1 The the DT 40404 5472 2 larger large JJR 40404 5472 3 bones bone NNS 40404 5472 4 are be VBP 40404 5472 5 split split VBN 40404 5472 6 for for IN 40404 5472 7 the the DT 40404 5472 8 extraction extraction NN 40404 5472 9 of of IN 40404 5472 10 the the DT 40404 5472 11 marrow marrow NN 40404 5472 12 . . . 40404 5473 1 Among among IN 40404 5473 2 such such JJ 40404 5473 3 fragments fragment NNS 40404 5473 4 no no DT 40404 5473 5 split split VBN 40404 5473 6 human human JJ 40404 5473 7 bones bone NNS 40404 5473 8 are be VBP 40404 5473 9 found find VBN 40404 5473 10 ; ; : 40404 5473 11 this this DT 40404 5473 12 people people NNS 40404 5473 13 , , , 40404 5473 14 therefore therefore RB 40404 5473 15 , , , 40404 5473 16 were be VBD 40404 5473 17 not not RB 40404 5473 18 cannibals cannibal NNS 40404 5473 19 . . . 40404 5474 1 Bone bone NN 40404 5474 2 needles needle NNS 40404 5474 3 imply imply VBP 40404 5474 4 the the DT 40404 5474 5 art art NN 40404 5474 6 of of IN 40404 5474 7 sewing sewing NN 40404 5474 8 , , , 40404 5474 9 and and CC 40404 5474 10 therefore therefore RB 40404 5474 11 the the DT 40404 5474 12 use use NN 40404 5474 13 of of IN 40404 5474 14 clothing clothing NN 40404 5474 15 , , , 40404 5474 16 made make VBD 40404 5474 17 no no DT 40404 5474 18 doubt doubt NN 40404 5474 19 of of IN 40404 5474 20 skins skin NNS 40404 5474 21 ; ; : 40404 5474 22 while while IN 40404 5474 23 various various JJ 40404 5474 24 ornaments ornament NNS 40404 5474 25 , , , 40404 5474 26 such such JJ 40404 5474 27 as as IN 40404 5474 28 necklaces necklace NNS 40404 5474 29 of of IN 40404 5474 30 shells shell NNS 40404 5474 31 , , , 40404 5474 32 show show VB 40404 5474 33 how how WRB 40404 5474 34 ancient ancient JJ 40404 5474 35 is be VBZ 40404 5474 36 the the DT 40404 5474 37 love love NN 40404 5474 38 of of IN 40404 5474 39 personal personal JJ 40404 5474 40 adornment adornment NN 40404 5474 41 . . . 40404 5475 1 Pottery pottery NN 40404 5475 2 was be VBD 40404 5475 3 not not RB 40404 5475 4 yet yet RB 40404 5475 5 invented invent VBN 40404 5475 6 . . . 40404 5476 1 There there EX 40404 5476 2 is be VBZ 40404 5476 3 no no DT 40404 5476 4 sign sign NN 40404 5476 5 of of IN 40404 5476 6 agriculture agriculture NN 40404 5476 7 . . . 40404 5477 1 No no DT 40404 5477 2 animals animal NNS 40404 5477 3 had have VBD 40404 5477 4 yet yet RB 40404 5477 5 been be VBN 40404 5477 6 domesticated domesticate VBN 40404 5477 7 ; ; : 40404 5477 8 not not RB 40404 5477 9 even even RB 40404 5477 10 man man NN 40404 5477 11 's 's POS 40404 5477 12 earliest early JJS 40404 5477 13 friend friend NN 40404 5477 14 , , , 40404 5477 15 the the DT 40404 5477 16 dog dog NN 40404 5477 17 . . . 40404 5478 1 Certain certain JJ 40404 5478 2 implements implement NNS 40404 5478 3 , , , 40404 5478 4 perhaps perhaps RB 40404 5478 5 used use VBN 40404 5478 6 as as IN 40404 5478 7 the the DT 40404 5478 8 insignia insignia NN 40404 5478 9 of of IN 40404 5478 10 office office NNP 40404 5478 11 , , , 40404 5478 12 suggest suggest VBP 40404 5478 13 a a DT 40404 5478 14 rude rude JJ 40404 5478 15 tribal tribal JJ 40404 5478 16 organization organization NN 40404 5478 17 and and CC 40404 5478 18 the the DT 40404 5478 19 beginnings beginning NNS 40404 5478 20 of of IN 40404 5478 21 the the DT 40404 5478 22 state state NN 40404 5478 23 . . . 40404 5479 1 The the DT 40404 5479 2 remains remain NNS 40404 5479 3 of of IN 40404 5479 4 funeral funeral NN 40404 5479 5 feasts feast NNS 40404 5479 6 in in IN 40404 5479 7 front front NN 40404 5479 8 of of IN 40404 5479 9 caverns cavern NNS 40404 5479 10 used use VBN 40404 5479 11 as as IN 40404 5479 12 tombs tomb NNS 40404 5479 13 point point VBP 40404 5479 14 to to IN 40404 5479 15 a a DT 40404 5479 16 religion religion NN 40404 5479 17 and and CC 40404 5479 18 the the DT 40404 5479 19 belief belief NN 40404 5479 20 in in IN 40404 5479 21 a a DT 40404 5479 22 life life NN 40404 5479 23 beyond beyond IN 40404 5479 24 the the DT 40404 5479 25 grave grave NN 40404 5479 26 . . . 40404 5480 1 In in IN 40404 5480 2 the the DT 40404 5480 3 caverns cavern NNS 40404 5480 4 of of IN 40404 5480 5 southern southern JJ 40404 5480 6 France France NNP 40404 5480 7 are be VBP 40404 5480 8 found find VBN 40404 5480 9 also also RB 40404 5480 10 the the DT 40404 5480 11 beginnings beginning NNS 40404 5480 12 of of IN 40404 5480 13 the the DT 40404 5480 14 arts art NNS 40404 5480 15 of of IN 40404 5480 16 painting painting NN 40404 5480 17 and and CC 40404 5480 18 of of IN 40404 5480 19 sculpture sculpture NN 40404 5480 20 . . . 40404 5481 1 With with IN 40404 5481 2 surprising surprising JJ 40404 5481 3 skill skill NN 40404 5481 4 these these DT 40404 5481 5 Paleolithic paleolithic JJ 40404 5481 6 men man NNS 40404 5481 7 sketched sketch VBD 40404 5481 8 on on IN 40404 5481 9 bits bit NNS 40404 5481 10 of of IN 40404 5481 11 ivory ivory NN 40404 5481 12 the the DT 40404 5481 13 mammoth mammoth NN 40404 5481 14 with with IN 40404 5481 15 his -PRON- PRP$ 40404 5481 16 long long JJ 40404 5481 17 hair hair NN 40404 5481 18 and and CC 40404 5481 19 huge huge JJ 40404 5481 20 curved curved JJ 40404 5481 21 tusks tusk NNS 40404 5481 22 , , , 40404 5481 23 frescoed fresco VBD 40404 5481 24 their -PRON- PRP$ 40404 5481 25 cavern cavern JJ 40404 5481 26 walls wall NNS 40404 5481 27 with with IN 40404 5481 28 pictures picture NNS 40404 5481 29 of of IN 40404 5481 30 the the DT 40404 5481 31 bison bison NN 40404 5481 32 and and CC 40404 5481 33 other other JJ 40404 5481 34 animals animal NNS 40404 5481 35 , , , 40404 5481 36 and and CC 40404 5481 37 carved carve VBD 40404 5481 38 reindeer reindeer NN 40404 5481 39 on on IN 40404 5481 40 their -PRON- PRP$ 40404 5481 41 dagger dagger NN 40404 5481 42 heads head NNS 40404 5481 43 . . . 40404 5482 1 [ [ -LRB- 40404 5482 2 Illustration illustration NN 40404 5482 3 : : : 40404 5482 4 Fig Fig NNP 40404 5482 5 . . . 40404 5483 1 374 374 CD 40404 5483 2 . . . 40404 5484 1 Restoration Restoration NNP 40404 5484 2 of of IN 40404 5484 3 Head Head NNP 40404 5484 4 of of IN 40404 5484 5 Pithecanthropus Pithecanthropus NNP 40404 5484 6 erectus erectus NN 40404 5484 7 ] ] -RRB- 40404 5484 8 = = NFP 40404 5484 9 Early early JJ 40404 5484 10 man man NN 40404 5484 11 on on IN 40404 5484 12 other other JJ 40404 5484 13 continents.= continents.= CD 40404 5484 14 Paleolithic paleolithic JJ 40404 5484 15 flints flint NNS 40404 5484 16 curiously curiously RB 40404 5484 17 like like IN 40404 5484 18 those those DT 40404 5484 19 of of IN 40404 5484 20 western western JJ 40404 5484 21 Europe Europe NNP 40404 5484 22 are be VBP 40404 5484 23 found find VBN 40404 5484 24 also also RB 40404 5484 25 in in IN 40404 5484 26 many many JJ 40404 5484 27 regions region NNS 40404 5484 28 of of IN 40404 5484 29 the the DT 40404 5484 30 Old Old NNP 40404 5484 31 World,--in World,--in NNP 40404 5484 32 India India NNP 40404 5484 33 , , , 40404 5484 34 Egypt Egypt NNP 40404 5484 35 , , , 40404 5484 36 and and CC 40404 5484 37 Asia Asia NNP 40404 5484 38 Minor,--beneath Minor,--beneath NNP 40404 5484 39 the the DT 40404 5484 40 earliest early JJS 40404 5484 41 vestiges vestige NNS 40404 5484 42 of of IN 40404 5484 43 the the DT 40404 5484 44 civilization civilization NN 40404 5484 45 of of IN 40404 5484 46 those those DT 40404 5484 47 ancient ancient JJ 40404 5484 48 seats seat NNS 40404 5484 49 , , , 40404 5484 50 and and CC 40404 5484 51 sometimes sometimes RB 40404 5484 52 associated associate VBN 40404 5484 53 with with IN 40404 5484 54 the the DT 40404 5484 55 fauna fauna NNS 40404 5484 56 of of IN 40404 5484 57 the the DT 40404 5484 58 Glacial Glacial NNP 40404 5484 59 epoch epoch NN 40404 5484 60 . . . 40404 5485 1 In in IN 40404 5485 2 Java Java NNP 40404 5485 3 there there EX 40404 5485 4 were be VBD 40404 5485 5 found find VBN 40404 5485 6 in in IN 40404 5485 7 1891 1891 CD 40404 5485 8 , , , 40404 5485 9 in in IN 40404 5485 10 strata strata NN 40404 5485 11 early early JJ 40404 5485 12 Quaternary Quaternary NNP 40404 5485 13 or or CC 40404 5485 14 late late JJ 40404 5485 15 Pliocene Pliocene NNP 40404 5485 16 in in IN 40404 5485 17 age age NN 40404 5485 18 , , , 40404 5485 19 parts part NNS 40404 5485 20 of of IN 40404 5485 21 a a DT 40404 5485 22 skeleton skeleton NN 40404 5485 23 of of IN 40404 5485 24 lower low JJR 40404 5485 25 grade grade NN 40404 5485 26 , , , 40404 5485 27 if if IN 40404 5485 28 not not RB 40404 5485 29 of of IN 40404 5485 30 greater great JJR 40404 5485 31 antiquity antiquity NN 40404 5485 32 , , , 40404 5485 33 than than IN 40404 5485 34 any any DT 40404 5485 35 human human NN 40404 5485 36 remains remain NNS 40404 5485 37 now now RB 40404 5485 38 known know VBN 40404 5485 39 . . . 40404 5486 1 _ _ NNP 40404 5486 2 Pithecanthropus Pithecanthropus NNP 40404 5486 3 erectus erectus NN 40404 5486 4 _ _ NNP 40404 5486 5 , , , 40404 5486 6 as as IN 40404 5486 7 the the DT 40404 5486 8 creature creature NN 40404 5486 9 has have VBZ 40404 5486 10 been be VBN 40404 5486 11 named name VBN 40404 5486 12 , , , 40404 5486 13 walked walk VBD 40404 5486 14 erect erect NN 40404 5486 15 , , , 40404 5486 16 as as IN 40404 5486 17 its -PRON- PRP$ 40404 5486 18 thigh thigh NN 40404 5486 19 bone bone NN 40404 5486 20 shows show NNS 40404 5486 21 , , , 40404 5486 22 but but CC 40404 5486 23 the the DT 40404 5486 24 skull skull NN 40404 5486 25 and and CC 40404 5486 26 teeth tooth NNS 40404 5486 27 indicate indicate VBP 40404 5486 28 a a DT 40404 5486 29 close close JJ 40404 5486 30 affinity affinity NN 40404 5486 31 with with IN 40404 5486 32 the the DT 40404 5486 33 ape ape NN 40404 5486 34 . . . 40404 5487 1 In in IN 40404 5487 2 North North NNP 40404 5487 3 America America NNP 40404 5487 4 there there EX 40404 5487 5 have have VBP 40404 5487 6 been be VBN 40404 5487 7 reported report VBN 40404 5487 8 many many JJ 40404 5487 9 finds find NNS 40404 5487 10 of of IN 40404 5487 11 human human JJ 40404 5487 12 relics relic NNS 40404 5487 13 in in IN 40404 5487 14 valley valley NN 40404 5487 15 trains train NNS 40404 5487 16 , , , 40404 5487 17 loess loess NN 40404 5487 18 , , , 40404 5487 19 old old JJ 40404 5487 20 river river NN 40404 5487 21 gravels gravel NNS 40404 5487 22 buried bury VBN 40404 5487 23 beneath beneath IN 40404 5487 24 lava lava NN 40404 5487 25 flows flow VBZ 40404 5487 26 , , , 40404 5487 27 and and CC 40404 5487 28 other other JJ 40404 5487 29 deposits deposit NNS 40404 5487 30 of of IN 40404 5487 31 supposed suppose VBN 40404 5487 32 glacial glacial JJ 40404 5487 33 age age NN 40404 5487 34 ; ; : 40404 5487 35 but but CC 40404 5487 36 in in IN 40404 5487 37 the the DT 40404 5487 38 opinion opinion NN 40404 5487 39 of of IN 40404 5487 40 some some DT 40404 5487 41 geologists geologist NNS 40404 5487 42 sufficient sufficient JJ 40404 5487 43 proof proof NN 40404 5487 44 of of IN 40404 5487 45 the the DT 40404 5487 46 existence existence NN 40404 5487 47 of of IN 40404 5487 48 man man NN 40404 5487 49 in in IN 40404 5487 50 America America NNP 40404 5487 51 in in IN 40404 5487 52 glacial glacial JJ 40404 5487 53 times time NNS 40404 5487 54 has have VBZ 40404 5487 55 not not RB 40404 5487 56 as as RB 40404 5487 57 yet yet RB 40404 5487 58 been be VBN 40404 5487 59 found find VBN 40404 5487 60 . . . 40404 5488 1 These these DT 40404 5488 2 finds find NNS 40404 5488 3 in in IN 40404 5488 4 North North NNP 40404 5488 5 America America NNP 40404 5488 6 have have VBP 40404 5488 7 been be VBN 40404 5488 8 discredited discredit VBN 40404 5488 9 for for IN 40404 5488 10 various various JJ 40404 5488 11 reasons reason NNS 40404 5488 12 . . . 40404 5489 1 Some some DT 40404 5489 2 were be VBD 40404 5489 3 not not RB 40404 5489 4 made make VBN 40404 5489 5 by by IN 40404 5489 6 scientific scientific JJ 40404 5489 7 men man NNS 40404 5489 8 accustomed accustom VBN 40404 5489 9 to to IN 40404 5489 10 the the DT 40404 5489 11 closest close JJS 40404 5489 12 scrutiny scrutiny NN 40404 5489 13 of of IN 40404 5489 14 every every DT 40404 5489 15 detail detail NN 40404 5489 16 . . . 40404 5490 1 Some some DT 40404 5490 2 were be VBD 40404 5490 3 reported report VBN 40404 5490 4 after after IN 40404 5490 5 a a DT 40404 5490 6 number number NN 40404 5490 7 of of IN 40404 5490 8 years year NNS 40404 5490 9 , , , 40404 5490 10 when when WRB 40404 5490 11 the the DT 40404 5490 12 circumstances circumstance NNS 40404 5490 13 might may MD 40404 5490 14 not not RB 40404 5490 15 be be VB 40404 5490 16 accurately accurately RB 40404 5490 17 remembered remember VBN 40404 5490 18 ; ; : 40404 5490 19 while while IN 40404 5490 20 in in IN 40404 5490 21 a a DT 40404 5490 22 number number NN 40404 5490 23 of of IN 40404 5490 24 instances instance NNS 40404 5490 25 it -PRON- PRP 40404 5490 26 seems seem VBZ 40404 5490 27 possible possible JJ 40404 5490 28 that that IN 40404 5490 29 the the DT 40404 5490 30 relics relic NNS 40404 5490 31 might may MD 40404 5490 32 have have VB 40404 5490 33 been be VBN 40404 5490 34 worked work VBN 40404 5490 35 into into IN 40404 5490 36 glacial glacial JJ 40404 5490 37 deposits deposit NNS 40404 5490 38 by by IN 40404 5490 39 natural natural JJ 40404 5490 40 causes cause NNS 40404 5490 41 from from IN 40404 5490 42 the the DT 40404 5490 43 surface surface NN 40404 5490 44 . . . 40404 5491 1 Man man UH 40404 5491 2 , , , 40404 5491 3 we -PRON- PRP 40404 5491 4 may may MD 40404 5491 5 believe believe VB 40404 5491 6 , , , 40404 5491 7 witnessed witness VBD 40404 5491 8 the the DT 40404 5491 9 great great JJ 40404 5491 10 ice ice NN 40404 5491 11 fields field NNS 40404 5491 12 of of IN 40404 5491 13 Europe Europe NNP 40404 5491 14 , , , 40404 5491 15 if if IN 40404 5491 16 not not RB 40404 5491 17 of of IN 40404 5491 18 America America NNP 40404 5491 19 , , , 40404 5491 20 and and CC 40404 5491 21 perhaps perhaps RB 40404 5491 22 appeared appear VBD 40404 5491 23 on on IN 40404 5491 24 earth earth NN 40404 5491 25 under under IN 40404 5491 26 the the DT 40404 5491 27 genial genial JJ 40404 5491 28 climate climate NN 40404 5491 29 of of IN 40404 5491 30 preglacial preglacial JJ 40404 5491 31 times time NNS 40404 5491 32 . . . 40404 5492 1 Nothing nothing NN 40404 5492 2 has have VBZ 40404 5492 3 yet yet RB 40404 5492 4 been be VBN 40404 5492 5 found find VBN 40404 5492 6 of of IN 40404 5492 7 the the DT 40404 5492 8 line line NN 40404 5492 9 of of IN 40404 5492 10 man man NN 40404 5492 11 's 's POS 40404 5492 12 supposed suppose VBN 40404 5492 13 descent descent NN 40404 5492 14 from from IN 40404 5492 15 the the DT 40404 5492 16 primates primate NNS 40404 5492 17 of of IN 40404 5492 18 the the DT 40404 5492 19 early early JJ 40404 5492 20 Tertiary Tertiary NNP 40404 5492 21 , , , 40404 5492 22 with with IN 40404 5492 23 the the DT 40404 5492 24 possible possible JJ 40404 5492 25 exception exception NN 40404 5492 26 of of IN 40404 5492 27 the the DT 40404 5492 28 Java Java NNP 40404 5492 29 remains remain VBZ 40404 5492 30 just just RB 40404 5492 31 mentioned mention VBN 40404 5492 32 . . . 40404 5493 1 The the DT 40404 5493 2 structures structure NNS 40404 5493 3 of of IN 40404 5493 4 man man NN 40404 5493 5 's 's POS 40404 5493 6 body body NN 40404 5493 7 show show VBP 40404 5493 8 that that IN 40404 5493 9 he -PRON- PRP 40404 5493 10 is be VBZ 40404 5493 11 not not RB 40404 5493 12 descended descend VBN 40404 5493 13 from from IN 40404 5493 14 any any DT 40404 5493 15 of of IN 40404 5493 16 the the DT 40404 5493 17 existing exist VBG 40404 5493 18 genera genera NN 40404 5493 19 of of IN 40404 5493 20 apes ape NNS 40404 5493 21 . . . 40404 5494 1 And and CC 40404 5494 2 although although IN 40404 5494 3 he -PRON- PRP 40404 5494 4 may may MD 40404 5494 5 not not RB 40404 5494 6 have have VB 40404 5494 7 been be VBN 40404 5494 8 exempt exempt JJ 40404 5494 9 from from IN 40404 5494 10 the the DT 40404 5494 11 law law NN 40404 5494 12 of of IN 40404 5494 13 evolution,--that evolution,--that NNP 40404 5494 14 method method NN 40404 5494 15 of of IN 40404 5494 16 creation creation NN 40404 5494 17 which which WDT 40404 5494 18 has have VBZ 40404 5494 19 made make VBN 40404 5494 20 all all DT 40404 5494 21 life life NN 40404 5494 22 on on IN 40404 5494 23 earth earth NN 40404 5494 24 akin,--yet akin,--yet IN 40404 5494 25 his -PRON- PRP$ 40404 5494 26 appearance appearance NN 40404 5494 27 was be VBD 40404 5494 28 an an DT 40404 5494 29 event event NN 40404 5494 30 which which WDT 40404 5494 31 in in IN 40404 5494 32 importance importance NN 40404 5494 33 ranks rank VBZ 40404 5494 34 with with IN 40404 5494 35 the the DT 40404 5494 36 advent advent NN 40404 5494 37 of of IN 40404 5494 38 life life NN 40404 5494 39 upon upon IN 40404 5494 40 the the DT 40404 5494 41 planet planet NN 40404 5494 42 , , , 40404 5494 43 and and CC 40404 5494 44 marks mark VBZ 40404 5494 45 a a DT 40404 5494 46 new new JJ 40404 5494 47 manifestation manifestation NN 40404 5494 48 of of IN 40404 5494 49 creative creative JJ 40404 5494 50 energy energy NN 40404 5494 51 upon upon IN 40404 5494 52 a a DT 40404 5494 53 higher high JJR 40404 5494 54 plane plane NN 40404 5494 55 . . . 40404 5495 1 There there EX 40404 5495 2 now now RB 40404 5495 3 appeared appear VBD 40404 5495 4 intelligence intelligence NN 40404 5495 5 , , , 40404 5495 6 reason reason NN 40404 5495 7 , , , 40404 5495 8 a a DT 40404 5495 9 moral moral JJ 40404 5495 10 nature nature NN 40404 5495 11 , , , 40404 5495 12 and and CC 40404 5495 13 a a DT 40404 5495 14 capacity capacity NN 40404 5495 15 for for IN 40404 5495 16 self self NN 40404 5495 17 - - HYPH 40404 5495 18 directed direct VBN 40404 5495 19 progress progress NN 40404 5495 20 such such JJ 40404 5495 21 as as IN 40404 5495 22 had have VBD 40404 5495 23 never never RB 40404 5495 24 been be VBN 40404 5495 25 before before RB 40404 5495 26 on on IN 40404 5495 27 earth earth NN 40404 5495 28 . . . 40404 5496 1 = = NFP 40404 5496 2 The the DT 40404 5496 3 Recent recent JJ 40404 5496 4 epoch.= epoch.= CD 40404 5496 5 The the DT 40404 5496 6 Glacial Glacial NNP 40404 5496 7 epoch epoch NN 40404 5496 8 ends end VBZ 40404 5496 9 with with IN 40404 5496 10 the the DT 40404 5496 11 melting melting NN 40404 5496 12 of of IN 40404 5496 13 the the DT 40404 5496 14 ice ice NN 40404 5496 15 sheets sheet NNS 40404 5496 16 of of IN 40404 5496 17 North North NNP 40404 5496 18 America America NNP 40404 5496 19 and and CC 40404 5496 20 Europe Europe NNP 40404 5496 21 , , , 40404 5496 22 and and CC 40404 5496 23 the the DT 40404 5496 24 replacement replacement NN 40404 5496 25 of of IN 40404 5496 26 the the DT 40404 5496 27 Pleistocene Pleistocene NNP 40404 5496 28 mammalian mammalian JJ 40404 5496 29 fauna fauna NNS 40404 5496 30 by by IN 40404 5496 31 present present JJ 40404 5496 32 species specie NNS 40404 5496 33 . . . 40404 5497 1 How how WRB 40404 5497 2 gradually gradually RB 40404 5497 3 the the DT 40404 5497 4 one one CD 40404 5497 5 epoch epoch NN 40404 5497 6 shades shade VBZ 40404 5497 7 into into IN 40404 5497 8 the the DT 40404 5497 9 other other JJ 40404 5497 10 is be VBZ 40404 5497 11 seen see VBN 40404 5497 12 in in IN 40404 5497 13 the the DT 40404 5497 14 fact fact NN 40404 5497 15 that that IN 40404 5497 16 the the DT 40404 5497 17 glaciers glacier NNS 40404 5497 18 which which WDT 40404 5497 19 still still RB 40404 5497 20 linger linger VBP 40404 5497 21 in in IN 40404 5497 22 Norway Norway NNP 40404 5497 23 and and CC 40404 5497 24 Alaska Alaska NNP 40404 5497 25 are be VBP 40404 5497 26 the the DT 40404 5497 27 lineal lineal NN 40404 5497 28 descendants descendant NNS 40404 5497 29 or or CC 40404 5497 30 the the DT 40404 5497 31 renewed renew VBN 40404 5497 32 appearances appearance NNS 40404 5497 33 of of IN 40404 5497 34 the the DT 40404 5497 35 ice ice NN 40404 5497 36 fields field NNS 40404 5497 37 of of IN 40404 5497 38 glacial glacial JJ 40404 5497 39 times time NNS 40404 5497 40 . . . 40404 5498 1 Our -PRON- PRP$ 40404 5498 2 science science NN 40404 5498 3 can can MD 40404 5498 4 not not RB 40404 5498 5 foretell foretell VB 40404 5498 6 whether whether IN 40404 5498 7 all all DT 40404 5498 8 traces trace NNS 40404 5498 9 of of IN 40404 5498 10 the the DT 40404 5498 11 Great Great NNP 40404 5498 12 Ice Ice NNP 40404 5498 13 Age Age NNP 40404 5498 14 are be VBP 40404 5498 15 to to TO 40404 5498 16 disappear disappear VB 40404 5498 17 , , , 40404 5498 18 and and CC 40404 5498 19 the the DT 40404 5498 20 earth earth NN 40404 5498 21 is be VBZ 40404 5498 22 to to TO 40404 5498 23 enjoy enjoy VB 40404 5498 24 again again RB 40404 5498 25 the the DT 40404 5498 26 genial genial JJ 40404 5498 27 climate climate NN 40404 5498 28 of of IN 40404 5498 29 the the DT 40404 5498 30 Tertiary Tertiary NNP 40404 5498 31 , , , 40404 5498 32 or or CC 40404 5498 33 whether whether IN 40404 5498 34 the the DT 40404 5498 35 present present NN 40404 5498 36 is be VBZ 40404 5498 37 an an DT 40404 5498 38 interglacial interglacial JJ 40404 5498 39 epoch epoch NN 40404 5498 40 and and CC 40404 5498 41 the the DT 40404 5498 42 northern northern JJ 40404 5498 43 lands land NNS 40404 5498 44 are be VBP 40404 5498 45 comparatively comparatively RB 40404 5498 46 soon soon RB 40404 5498 47 again again RB 40404 5498 48 to to TO 40404 5498 49 be be VB 40404 5498 50 wrapped wrap VBN 40404 5498 51 in in IN 40404 5498 52 ice ice NN 40404 5498 53 . . . 40404 5499 1 = = NFP 40404 5499 2 Neolithic neolithic JJ 40404 5499 3 man.= man.= NNP 40404 5499 4 The the DT 40404 5499 5 wild wild JJ 40404 5499 6 Paleolithic paleolithic JJ 40404 5499 7 men man NNS 40404 5499 8 vanished vanish VBD 40404 5499 9 from from IN 40404 5499 10 Europe Europe NNP 40404 5499 11 with with IN 40404 5499 12 the the DT 40404 5499 13 wild wild JJ 40404 5499 14 beasts beast NNS 40404 5499 15 which which WDT 40404 5499 16 they -PRON- PRP 40404 5499 17 hunted hunt VBD 40404 5499 18 , , , 40404 5499 19 and and CC 40404 5499 20 their -PRON- PRP$ 40404 5499 21 place place NN 40404 5499 22 was be VBD 40404 5499 23 taken take VBN 40404 5499 24 by by IN 40404 5499 25 tribes tribe NNS 40404 5499 26 , , , 40404 5499 27 perhaps perhaps RB 40404 5499 28 from from IN 40404 5499 29 Asia Asia NNP 40404 5499 30 , , , 40404 5499 31 of of IN 40404 5499 32 a a DT 40404 5499 33 higher high JJR 40404 5499 34 culture culture NN 40404 5499 35 . . . 40404 5500 1 The the DT 40404 5500 2 remains remain NNS 40404 5500 3 of of IN 40404 5500 4 Neolithic neolithic JJ 40404 5500 5 man man NN 40404 5500 6 are be VBP 40404 5500 7 found find VBN 40404 5500 8 , , , 40404 5500 9 much much RB 40404 5500 10 as as IN 40404 5500 11 are be VBP 40404 5500 12 those those DT 40404 5500 13 of of IN 40404 5500 14 the the DT 40404 5500 15 North North NNP 40404 5500 16 American American NNP 40404 5500 17 Indians Indians NNPS 40404 5500 18 , , , 40404 5500 19 upon upon IN 40404 5500 20 or or CC 40404 5500 21 near near IN 40404 5500 22 the the DT 40404 5500 23 surface surface NN 40404 5500 24 , , , 40404 5500 25 in in IN 40404 5500 26 burial burial JJ 40404 5500 27 mounds mound NNS 40404 5500 28 , , , 40404 5500 29 in in IN 40404 5500 30 shell shell NNP 40404 5500 31 heaps heaps NNP 40404 5500 32 ( ( -LRB- 40404 5500 33 the the DT 40404 5500 34 refuse refuse NN 40404 5500 35 heaps heap VBZ 40404 5500 36 of of IN 40404 5500 37 their -PRON- PRP$ 40404 5500 38 settlements settlement NNS 40404 5500 39 ) ) -RRB- 40404 5500 40 , , , 40404 5500 41 in in IN 40404 5500 42 peat peat NNP 40404 5500 43 bogs bog NNS 40404 5500 44 , , , 40404 5500 45 caves cave NNS 40404 5500 46 , , , 40404 5500 47 recent recent JJ 40404 5500 48 flood flood NN 40404 5500 49 - - HYPH 40404 5500 50 plain plain NN 40404 5500 51 deposits deposit NNS 40404 5500 52 , , , 40404 5500 53 and and CC 40404 5500 54 in in IN 40404 5500 55 the the DT 40404 5500 56 beds bed NNS 40404 5500 57 of of IN 40404 5500 58 lakes lake NNS 40404 5500 59 near near IN 40404 5500 60 shore shore NN 40404 5500 61 where where WRB 40404 5500 62 they -PRON- PRP 40404 5500 63 sometimes sometimes RB 40404 5500 64 built build VBD 40404 5500 65 their -PRON- PRP$ 40404 5500 66 dwellings dwelling NNS 40404 5500 67 upon upon IN 40404 5500 68 piles pile NNS 40404 5500 69 . . . 40404 5501 1 The the DT 40404 5501 2 successive successive JJ 40404 5501 3 stages stage NNS 40404 5501 4 in in IN 40404 5501 5 European european JJ 40404 5501 6 culture culture NN 40404 5501 7 are be VBP 40404 5501 8 well well RB 40404 5501 9 displayed display VBN 40404 5501 10 in in IN 40404 5501 11 the the DT 40404 5501 12 peat peat JJ 40404 5501 13 bogs bog NNS 40404 5501 14 of of IN 40404 5501 15 Denmark Denmark NNP 40404 5501 16 . . . 40404 5502 1 The the DT 40404 5502 2 lowest low JJS 40404 5502 3 layers layer NNS 40404 5502 4 contain contain VBP 40404 5502 5 the the DT 40404 5502 6 polished polished JJ 40404 5502 7 _ _ NNP 40404 5502 8 stone stone NN 40404 5502 9 _ _ NNP 40404 5502 10 implements implement NNS 40404 5502 11 of of IN 40404 5502 12 Neolithic neolithic JJ 40404 5502 13 man man NN 40404 5502 14 , , , 40404 5502 15 along along IN 40404 5502 16 with with IN 40404 5502 17 remains remain NNS 40404 5502 18 of of IN 40404 5502 19 the the DT 40404 5502 20 _ _ NNP 40404 5502 21 Scotch Scotch NNP 40404 5502 22 fir fir NN 40404 5502 23 _ _ NNP 40404 5502 24 . . . 40404 5503 1 Above above IN 40404 5503 2 are be VBP 40404 5503 3 _ _ NNP 40404 5503 4 oak oak NN 40404 5503 5 _ _ NNP 40404 5503 6 trunks trunk NNS 40404 5503 7 with with IN 40404 5503 8 implements implement NNS 40404 5503 9 of of IN 40404 5503 10 _ _ NNP 40404 5503 11 bronze bronze NN 40404 5503 12 _ _ NNP 40404 5503 13 , , , 40404 5503 14 while while IN 40404 5503 15 the the DT 40404 5503 16 higher high JJR 40404 5503 17 layers layer NNS 40404 5503 18 hold hold VBP 40404 5503 19 _ _ NNP 40404 5503 20 iron iron NN 40404 5503 21 _ _ NNP 40404 5503 22 weapons weapon NNS 40404 5503 23 and and CC 40404 5503 24 the the DT 40404 5503 25 remains remain NNS 40404 5503 26 of of IN 40404 5503 27 a a DT 40404 5503 28 _ _ NNP 40404 5503 29 beech beech FW 40404 5503 30 _ _ NNP 40404 5503 31 forest forest NN 40404 5503 32 . . . 40404 5504 1 Neolithic neolithic JJ 40404 5504 2 man man NN 40404 5504 3 in in IN 40404 5504 4 Europe Europe NNP 40404 5504 5 had have VBD 40404 5504 6 learned learn VBN 40404 5504 7 to to TO 40404 5504 8 make make VB 40404 5504 9 pottery pottery NN 40404 5504 10 , , , 40404 5504 11 to to TO 40404 5504 12 spin spin VB 40404 5504 13 and and CC 40404 5504 14 weave weave VB 40404 5504 15 linen linen NN 40404 5504 16 , , , 40404 5504 17 to to IN 40404 5504 18 hew hew NNP 40404 5504 19 timbers timber NNS 40404 5504 20 and and CC 40404 5504 21 build build VB 40404 5504 22 boats boat NNS 40404 5504 23 , , , 40404 5504 24 and and CC 40404 5504 25 to to TO 40404 5504 26 grow grow VB 40404 5504 27 wheat wheat NN 40404 5504 28 and and CC 40404 5504 29 barley barley NN 40404 5504 30 . . . 40404 5505 1 The the DT 40404 5505 2 dog dog NN 40404 5505 3 , , , 40404 5505 4 horse horse NN 40404 5505 5 , , , 40404 5505 6 ox ox NN 40404 5505 7 , , , 40404 5505 8 sheep sheep NN 40404 5505 9 , , , 40404 5505 10 goat goat NN 40404 5505 11 , , , 40404 5505 12 and and CC 40404 5505 13 hog hog NNP 40404 5505 14 had have VBD 40404 5505 15 been be VBN 40404 5505 16 domesticated domesticate VBN 40404 5505 17 , , , 40404 5505 18 and and CC 40404 5505 19 , , , 40404 5505 20 as as IN 40404 5505 21 these these DT 40404 5505 22 species specie NNS 40404 5505 23 are be VBP 40404 5505 24 not not RB 40404 5505 25 known know VBN 40404 5505 26 to to TO 40404 5505 27 have have VB 40404 5505 28 existed exist VBN 40404 5505 29 before before RB 40404 5505 30 in in IN 40404 5505 31 Europe Europe NNP 40404 5505 32 , , , 40404 5505 33 it -PRON- PRP 40404 5505 34 is be VBZ 40404 5505 35 a a DT 40404 5505 36 fair fair JJ 40404 5505 37 inference inference NN 40404 5505 38 that that IN 40404 5505 39 they -PRON- PRP 40404 5505 40 were be VBD 40404 5505 41 brought bring VBN 40404 5505 42 by by IN 40404 5505 43 man man NN 40404 5505 44 from from IN 40404 5505 45 another another DT 40404 5505 46 continent continent NN 40404 5505 47 of of IN 40404 5505 48 the the DT 40404 5505 49 Old Old NNP 40404 5505 50 World World NNP 40404 5505 51 . . . 40404 5506 1 Neolithic neolithic JJ 40404 5506 2 man man NN 40404 5506 3 knew know VBD 40404 5506 4 nothing nothing NN 40404 5506 5 of of IN 40404 5506 6 the the DT 40404 5506 7 art art NN 40404 5506 8 of of IN 40404 5506 9 extracting extract VBG 40404 5506 10 the the DT 40404 5506 11 metals metal NNS 40404 5506 12 from from IN 40404 5506 13 their -PRON- PRP$ 40404 5506 14 ores ore NNS 40404 5506 15 , , , 40404 5506 16 nor nor CC 40404 5506 17 had have VBD 40404 5506 18 he -PRON- PRP 40404 5506 19 a a DT 40404 5506 20 written write VBN 40404 5506 21 language language NN 40404 5506 22 . . . 40404 5507 1 The the DT 40404 5507 2 Neolithic neolithic JJ 40404 5507 3 stage stage NN 40404 5507 4 of of IN 40404 5507 5 culture culture NN 40404 5507 6 passes pass VBZ 40404 5507 7 by by IN 40404 5507 8 insensible insensible JJ 40404 5507 9 gradations gradation NNS 40404 5507 10 into into IN 40404 5507 11 that that DT 40404 5507 12 of of IN 40404 5507 13 the the DT 40404 5507 14 age age NN 40404 5507 15 of of IN 40404 5507 16 bronze bronze NN 40404 5507 17 , , , 40404 5507 18 and and CC 40404 5507 19 thus thus RB 40404 5507 20 into into IN 40404 5507 21 the the DT 40404 5507 22 Recent recent JJ 40404 5507 23 epoch epoch NN 40404 5507 24 . . . 40404 5508 1 In in IN 40404 5508 2 the the DT 40404 5508 3 Recent Recent NNP 40404 5508 4 epoch epoch NN 40404 5508 5 the the DT 40404 5508 6 progress progress NN 40404 5508 7 of of IN 40404 5508 8 man man NN 40404 5508 9 in in IN 40404 5508 10 language language NN 40404 5508 11 , , , 40404 5508 12 in in IN 40404 5508 13 social social JJ 40404 5508 14 organization organization NN 40404 5508 15 , , , 40404 5508 16 in in IN 40404 5508 17 the the DT 40404 5508 18 arts art NNS 40404 5508 19 of of IN 40404 5508 20 life life NN 40404 5508 21 , , , 40404 5508 22 in in IN 40404 5508 23 morals moral NNS 40404 5508 24 and and CC 40404 5508 25 religion religion NN 40404 5508 26 , , , 40404 5508 27 has have VBZ 40404 5508 28 left leave VBN 40404 5508 29 ample ample JJ 40404 5508 30 records record NNS 40404 5508 31 which which WDT 40404 5508 32 are be VBP 40404 5508 33 for for IN 40404 5508 34 other other JJ 40404 5508 35 sciences science NNS 40404 5508 36 than than IN 40404 5508 37 ours our NNS 40404 5508 38 to to TO 40404 5508 39 read read VB 40404 5508 40 ; ; : 40404 5508 41 here here RB 40404 5508 42 , , , 40404 5508 43 therefore therefore RB 40404 5508 44 , , , 40404 5508 45 geology geology NN 40404 5508 46 gives give VBZ 40404 5508 47 place place NN 40404 5508 48 to to IN 40404 5508 49 archæology archæology NN 40404 5508 50 and and CC 40404 5508 51 history history NN 40404 5508 52 . . . 40404 5509 1 Our -PRON- PRP$ 40404 5509 2 brief brief JJ 40404 5509 3 study study NN 40404 5509 4 of of IN 40404 5509 5 the the DT 40404 5509 6 outlines outline NNS 40404 5509 7 of of IN 40404 5509 8 geology geology NN 40404 5509 9 has have VBZ 40404 5509 10 given give VBN 40404 5509 11 us -PRON- PRP 40404 5509 12 , , , 40404 5509 13 it -PRON- PRP 40404 5509 14 is be VBZ 40404 5509 15 hoped hope VBN 40404 5509 16 , , , 40404 5509 17 some some DT 40404 5509 18 great great JJ 40404 5509 19 and and CC 40404 5509 20 lasting lasting JJ 40404 5509 21 good good NN 40404 5509 22 . . . 40404 5510 1 To to TO 40404 5510 2 conceive conceive VB 40404 5510 3 a a DT 40404 5510 4 past past NN 40404 5510 5 so so RB 40404 5510 6 different different JJ 40404 5510 7 from from IN 40404 5510 8 the the DT 40404 5510 9 present present NN 40404 5510 10 has have VBZ 40404 5510 11 stimulated stimulate VBN 40404 5510 12 the the DT 40404 5510 13 imagination imagination NN 40404 5510 14 , , , 40404 5510 15 and and CC 40404 5510 16 to to TO 40404 5510 17 follow follow VB 40404 5510 18 the the DT 40404 5510 19 inferences inference NNS 40404 5510 20 by by IN 40404 5510 21 which which WDT 40404 5510 22 the the DT 40404 5510 23 conclusions conclusion NNS 40404 5510 24 of of IN 40404 5510 25 our -PRON- PRP$ 40404 5510 26 science science NN 40404 5510 27 have have VBP 40404 5510 28 been be VBN 40404 5510 29 reached reach VBN 40404 5510 30 has have VBZ 40404 5510 31 exercised exercise VBN 40404 5510 32 one one CD 40404 5510 33 of of IN 40404 5510 34 the the DT 40404 5510 35 noblest noble JJS 40404 5510 36 faculties faculty NNS 40404 5510 37 of of IN 40404 5510 38 the the DT 40404 5510 39 mind,--the mind,--the NNP 40404 5510 40 reason reason NN 40404 5510 41 . . . 40404 5511 1 We -PRON- PRP 40404 5511 2 have have VBP 40404 5511 3 learned learn VBN 40404 5511 4 to to TO 40404 5511 5 look look VB 40404 5511 6 on on IN 40404 5511 7 nature nature NN 40404 5511 8 in in IN 40404 5511 9 new new JJ 40404 5511 10 ways way NNS 40404 5511 11 : : : 40404 5511 12 every every DT 40404 5511 13 landscape landscape NN 40404 5511 14 , , , 40404 5511 15 every every DT 40404 5511 16 pebble pebble NN 40404 5511 17 now now RB 40404 5511 18 has have VBZ 40404 5511 19 a a DT 40404 5511 20 meaning meaning NN 40404 5511 21 and and CC 40404 5511 22 tells tell VBZ 40404 5511 23 something something NN 40404 5511 24 of of IN 40404 5511 25 its -PRON- PRP$ 40404 5511 26 origin origin NN 40404 5511 27 and and CC 40404 5511 28 history history NN 40404 5511 29 , , , 40404 5511 30 while while IN 40404 5511 31 plants plant NNS 40404 5511 32 and and CC 40404 5511 33 animals animal NNS 40404 5511 34 have have VBP 40404 5511 35 a a DT 40404 5511 36 closer close JJR 40404 5511 37 interest interest NN 40404 5511 38 since since IN 40404 5511 39 we -PRON- PRP 40404 5511 40 have have VBP 40404 5511 41 traced trace VBN 40404 5511 42 the the DT 40404 5511 43 long long JJ 40404 5511 44 lines line NNS 40404 5511 45 of of IN 40404 5511 46 their -PRON- PRP$ 40404 5511 47 descent descent NN 40404 5511 48 . . . 40404 5512 1 The the DT 40404 5512 2 narrow narrow JJ 40404 5512 3 horizons horizon NNS 40404 5512 4 of of IN 40404 5512 5 human human JJ 40404 5512 6 life life NN 40404 5512 7 have have VBP 40404 5512 8 been be VBN 40404 5512 9 broken break VBN 40404 5512 10 through through RP 40404 5512 11 , , , 40404 5512 12 and and CC 40404 5512 13 we -PRON- PRP 40404 5512 14 have have VBP 40404 5512 15 caught catch VBN 40404 5512 16 glimpses glimpse NNS 40404 5512 17 of of IN 40404 5512 18 that that DT 40404 5512 19 immeasurable immeasurable JJ 40404 5512 20 reach reach NN 40404 5512 21 of of IN 40404 5512 22 time time NN 40404 5512 23 in in IN 40404 5512 24 which which WDT 40404 5512 25 nebulae nebulae NNP 40404 5512 26 and and CC 40404 5512 27 suns sun NNS 40404 5512 28 and and CC 40404 5512 29 planets planet NNS 40404 5512 30 run run VBP 40404 5512 31 their -PRON- PRP$ 40404 5512 32 courses course NNS 40404 5512 33 . . . 40404 5513 1 Moreover moreover RB 40404 5513 2 , , , 40404 5513 3 we -PRON- PRP 40404 5513 4 have have VBP 40404 5513 5 learned learn VBN 40404 5513 6 something something NN 40404 5513 7 of of IN 40404 5513 8 that that DT 40404 5513 9 orderly orderly JJ 40404 5513 10 and and CC 40404 5513 11 world world NN 40404 5513 12 - - HYPH 40404 5513 13 embracing embrace VBG 40404 5513 14 progress progress NN 40404 5513 15 by by IN 40404 5513 16 which which WDT 40404 5513 17 the the DT 40404 5513 18 once once RB 40404 5513 19 uninhabitable uninhabitable JJ 40404 5513 20 globe globe NN 40404 5513 21 has have VBZ 40404 5513 22 come come VBN 40404 5513 23 to to TO 40404 5513 24 be be VB 40404 5513 25 man man NN 40404 5513 26 's 's POS 40404 5513 27 well well RB 40404 5513 28 - - HYPH 40404 5513 29 appointed appoint VBN 40404 5513 30 home home NN 40404 5513 31 , , , 40404 5513 32 and and CC 40404 5513 33 life life NN 40404 5513 34 appearing appear VBG 40404 5513 35 in in IN 40404 5513 36 the the DT 40404 5513 37 lowliest lowly JJS 40404 5513 38 forms form NNS 40404 5513 39 has have VBZ 40404 5513 40 steadily steadily RB 40404 5513 41 developed develop VBN 40404 5513 42 higher higher RBR 40404 5513 43 and and CC 40404 5513 44 still still RB 40404 5513 45 higher high JJR 40404 5513 46 types type NNS 40404 5513 47 . . . 40404 5514 1 Seeing see VBG 40404 5514 2 this this DT 40404 5514 3 process process NN 40404 5514 4 enter enter VB 40404 5514 5 human human JJ 40404 5514 6 history history NN 40404 5514 7 and and CC 40404 5514 8 lift lift VB 40404 5514 9 our -PRON- PRP$ 40404 5514 10 race race NN 40404 5514 11 continually continually RB 40404 5514 12 to to IN 40404 5514 13 loftier lofty JJR 40404 5514 14 levels level NNS 40404 5514 15 , , , 40404 5514 16 we -PRON- PRP 40404 5514 17 find find VBP 40404 5514 18 reason reason NN 40404 5514 19 to to TO 40404 5514 20 believe believe VB 40404 5514 21 that that IN 40404 5514 22 the the DT 40404 5514 23 onward onward JJ 40404 5514 24 , , , 40404 5514 25 upward upward JJ 40404 5514 26 movement movement NN 40404 5514 27 of of IN 40404 5514 28 the the DT 40404 5514 29 geological geological JJ 40404 5514 30 past past NN 40404 5514 31 is be VBZ 40404 5514 32 the the DT 40404 5514 33 manifestation manifestation NN 40404 5514 34 of of IN 40404 5514 35 the the DT 40404 5514 36 same same JJ 40404 5514 37 wise wise JJ 40404 5514 38 Power Power NNP 40404 5514 39 which which WDT 40404 5514 40 makes make VBZ 40404 5514 41 for for IN 40404 5514 42 righteousness righteousness NN 40404 5514 43 and and CC 40404 5514 44 good good NN 40404 5514 45 and and CC 40404 5514 46 that that IN 40404 5514 47 this this DT 40404 5514 48 unceasing uncease VBG 40404 5514 49 purpose purpose NN 40404 5514 50 will will MD 40404 5514 51 still still RB 40404 5514 52 lead lead VB 40404 5514 53 on on IN 40404 5514 54 to to IN 40404 5514 55 nobler nobler NNP 40404 5514 56 ends end NNS 40404 5514 57 . . . 40404 5515 1 INDEX INDEX NNP 40404 5515 2 Aa Aa NNP 40404 5515 3 , , , 40404 5515 4 lava lava NN 40404 5515 5 , , , 40404 5515 6 241 241 CD 40404 5515 7 Acadian acadian JJ 40404 5515 8 coal coal NN 40404 5515 9 field field NN 40404 5515 10 , , , 40404 5515 11 354 354 CD 40404 5515 12 Accretion Accretion NNP 40404 5515 13 hypothesis hypothesis NN 40404 5515 14 , , , 40404 5515 15 304 304 CD 40404 5515 16 Acidic acidic JJ 40404 5515 17 rocks rock NNS 40404 5515 18 , , , 40404 5515 19 249 249 CD 40404 5515 20 Adelsberg Adelsberg NNP 40404 5515 21 grotto grotto NN 40404 5515 22 , , , 40404 5515 23 47 47 CD 40404 5515 24 Adirondacks Adirondacks NNPS 40404 5515 25 , , , 40404 5515 26 309 309 CD 40404 5515 27 , , , 40404 5515 28 316 316 CD 40404 5515 29 Africa Africa NNP 40404 5515 30 , , , 40404 5515 31 357 357 CD 40404 5515 32 Agassiz Agassiz NNP 40404 5515 33 , , , 40404 5515 34 Lake Lake NNP 40404 5515 35 , , , 40404 5515 36 67 67 CD 40404 5515 37 , , , 40404 5515 38 111 111 CD 40404 5515 39 , , , 40404 5515 40 435 435 CD 40404 5515 41 Agates agate NNS 40404 5515 42 , , , 40404 5515 43 251 251 CD 40404 5515 44 Alabama Alabama NNP 40404 5515 45 , , , 40404 5515 46 317 317 CD 40404 5515 47 , , , 40404 5515 48 360 360 CD 40404 5515 49 Alaska Alaska NNP 40404 5515 50 , , , 40404 5515 51 85 85 CD 40404 5515 52 , , , 40404 5515 53 138 138 CD 40404 5515 54 , , , 40404 5515 55 140 140 CD 40404 5515 56 , , , 40404 5515 57 378 378 CD 40404 5515 58 Aletsch Aletsch NNP 40404 5515 59 glacier glacier NN 40404 5515 60 , , , 40404 5515 61 121 121 CD 40404 5515 62 Algæ Algæ NNP 40404 5515 63 , , , 40404 5515 64 51 51 CD 40404 5515 65 , , , 40404 5515 66 52 52 CD 40404 5515 67 Algonkian algonkian JJ 40404 5515 68 era era NN 40404 5515 69 , , , 40404 5515 70 306 306 CD 40404 5515 71 , , , 40404 5515 72 310 310 CD 40404 5515 73 Allegheny Allegheny NNP 40404 5515 74 Mountains Mountains NNPS 40404 5515 75 , , , 40404 5515 76 90 90 CD 40404 5515 77 , , , 40404 5515 78 224 224 CD 40404 5515 79 , , , 40404 5515 80 326 326 CD 40404 5515 81 , , , 40404 5515 82 403 403 CD 40404 5515 83 Alluvial alluvial JJ 40404 5515 84 cones cone NNS 40404 5515 85 , , , 40404 5515 86 98 98 CD 40404 5515 87 Alluvium Alluvium NNP 40404 5515 88 , , , 40404 5515 89 62 62 CD 40404 5515 90 Alps Alps NNPS 40404 5515 91 , , , 40404 5515 92 118 118 CD 40404 5515 93 , , , 40404 5515 94 121 121 CD 40404 5515 95 , , , 40404 5515 96 141 141 CD 40404 5515 97 , , , 40404 5515 98 210 210 CD 40404 5515 99 , , , 40404 5515 100 211 211 CD 40404 5515 101 , , , 40404 5515 102 212 212 CD 40404 5515 103 , , , 40404 5515 104 223 223 CD 40404 5515 105 , , , 40404 5515 106 229 229 CD 40404 5515 107 , , , 40404 5515 108 349 349 CD 40404 5515 109 , , , 40404 5515 110 427 427 CD 40404 5515 111 , , , 40404 5515 112 443 443 CD 40404 5515 113 Amazon Amazon NNP 40404 5515 114 River River NNP 40404 5515 115 , , , 40404 5515 116 175 175 CD 40404 5515 117 Ammonites Ammonites NNPS 40404 5515 118 , , , 40404 5515 119 294 294 CD 40404 5515 120 , , , 40404 5515 121 367 367 CD 40404 5515 122 , , , 40404 5515 123 380 380 CD 40404 5515 124 , , , 40404 5515 125 382 382 CD 40404 5515 126 Amphibians Amphibians NNPS 40404 5515 127 , , , 40404 5515 128 364 364 CD 40404 5515 129 , , , 40404 5515 130 383 383 CD 40404 5515 131 Amphicyon amphicyon NN 40404 5515 132 , , , 40404 5515 133 413 413 CD 40404 5515 134 Amygdules amygdule NNS 40404 5515 135 , , , 40404 5515 136 250 250 CD 40404 5515 137 Andes ande NNS 40404 5515 138 , , , 40404 5515 139 236 236 CD 40404 5515 140 , , , 40404 5515 141 279 279 CD 40404 5515 142 Angle angle NN 40404 5515 143 of of IN 40404 5515 144 repose repose NN 40404 5515 145 , , , 40404 5515 146 25 25 CD 40404 5515 147 Antarctic antarctic JJ 40404 5515 148 continent continent NN 40404 5515 149 , , , 40404 5515 150 294 294 CD 40404 5515 151 Antecedent Antecedent NNP 40404 5515 152 streams stream VBZ 40404 5515 153 , , , 40404 5515 154 209 209 CD 40404 5515 155 Antelope Antelope NNP 40404 5515 156 , , , 40404 5515 157 413 413 CD 40404 5515 158 Anthracite anthracite NN 40404 5515 159 , , , 40404 5515 160 281 281 CD 40404 5515 161 Anticlinal anticlinal JJ 40404 5515 162 folds fold NNS 40404 5515 163 , , , 40404 5515 164 203 203 CD 40404 5515 165 , , , 40404 5515 166 209 209 CD 40404 5515 167 Ants ant NNS 40404 5515 168 , , , 40404 5515 169 20 20 CD 40404 5515 170 Apennine Apennine NNP 40404 5515 171 Mountains Mountains NNPS 40404 5515 172 , , , 40404 5515 173 399 399 CD 40404 5515 174 Appalachia Appalachia NNP 40404 5515 175 , , , 40404 5515 176 317 317 CD 40404 5515 177 , , , 40404 5515 178 351 351 CD 40404 5515 179 , , , 40404 5515 180 358 358 CD 40404 5515 181 Appalachian appalachian JJ 40404 5515 182 coal coal NN 40404 5515 183 field field NN 40404 5515 184 , , , 40404 5515 185 356 356 CD 40404 5515 186 Appalachian appalachian JJ 40404 5515 187 deformation deformation NN 40404 5515 188 , , , 40404 5515 189 358 358 CD 40404 5515 190 Appalachian Appalachian NNP 40404 5515 191 Mountains Mountains NNPS 40404 5515 192 , , , 40404 5515 193 211 211 CD 40404 5515 194 , , , 40404 5515 195 214 214 CD 40404 5515 196 , , , 40404 5515 197 218 218 CD 40404 5515 198 , , , 40404 5515 199 292 292 CD 40404 5515 200 Aquifer Aquifer NNP 40404 5515 201 , , , 40404 5515 202 44 44 CD 40404 5515 203 Aragonite aragonite JJ 40404 5515 204 , , , 40404 5515 205 296 296 CD 40404 5515 206 Archæopteryx archæopteryx NN 40404 5515 207 , , , 40404 5515 208 393 393 CD 40404 5515 209 Archean Archean NNP 40404 5515 210 era era NN 40404 5515 211 , , , 40404 5515 212 305 305 CD 40404 5515 213 Arenaceous arenaceous JJ 40404 5515 214 rocks rock NNS 40404 5515 215 , , , 40404 5515 216 9 9 CD 40404 5515 217 Argillaceous argillaceous JJ 40404 5515 218 rocks rock NNS 40404 5515 219 , , , 40404 5515 220 9 9 CD 40404 5515 221 Arizona Arizona NNP 40404 5515 222 , , , 40404 5515 223 32 32 CD 40404 5515 224 , , , 40404 5515 225 76 76 CD 40404 5515 226 , , , 40404 5515 227 140 140 CD 40404 5515 228 , , , 40404 5515 229 151 151 CD 40404 5515 230 , , , 40404 5515 231 164 164 CD 40404 5515 232 , , , 40404 5515 233 220 220 CD 40404 5515 234 , , , 40404 5515 235 229 229 CD 40404 5515 236 , , , 40404 5515 237 249 249 CD 40404 5515 238 , , , 40404 5515 239 257 257 CD 40404 5515 240 , , , 40404 5515 241 371 371 CD 40404 5515 242 , , , 40404 5515 243 390 390 CD 40404 5515 244 Arkansas Arkansas NNP 40404 5515 245 , , , 40404 5515 246 337 337 CD 40404 5515 247 , , , 40404 5515 248 356 356 CD 40404 5515 249 , , , 40404 5515 250 373 373 CD 40404 5515 251 Arkose Arkose NNP 40404 5515 252 , , , 40404 5515 253 186 186 CD 40404 5515 254 , , , 40404 5515 255 282 282 CD 40404 5515 256 , , , 40404 5515 257 370 370 CD 40404 5515 258 Artesian artesian JJ 40404 5515 259 wells well NNS 40404 5515 260 , , , 40404 5515 261 44 44 CD 40404 5515 262 Arthropods arthropod NNS 40404 5515 263 , , , 40404 5515 264 322 322 CD 40404 5515 265 Artiodactyls Artiodactyls NNP 40404 5515 266 , , , 40404 5515 267 411 411 CD 40404 5515 268 Assiniboine Assiniboine NNP 40404 5515 269 , , , 40404 5515 270 Mount Mount NNP 40404 5515 271 , , , 40404 5515 272 34 34 CD 40404 5515 273 Atlas Atlas NNP 40404 5515 274 Mountains Mountains NNPS 40404 5515 275 , , , 40404 5515 276 399 399 CD 40404 5515 277 Atmosphere Atmosphere NNP 40404 5515 278 , , , 40404 5515 279 304 304 CD 40404 5515 280 , , , 40404 5515 281 305 305 CD 40404 5515 282 Atolls Atolls NNPS 40404 5515 283 , , , 40404 5515 284 191 191 CD 40404 5515 285 , , , 40404 5515 286 193 193 CD 40404 5515 287 Augite Augite NNP 40404 5515 288 , , , 40404 5515 289 274 274 CD 40404 5515 290 Austin Austin NNP 40404 5515 291 , , , 40404 5515 292 Tex Tex NNP 40404 5515 293 . . NNP 40404 5515 294 , , , 40404 5515 295 71 71 CD 40404 5515 296 Australia Australia NNP 40404 5515 297 , , , 40404 5515 298 190 190 CD 40404 5515 299 , , , 40404 5515 300 357 357 CD 40404 5515 301 Avalanches avalanche NNS 40404 5515 302 , , , 40404 5515 303 26 26 CD 40404 5515 304 Bad Bad NNP 40404 5515 305 Lands Lands NNPS 40404 5515 306 , , , 40404 5515 307 397 397 CD 40404 5515 308 , , , 40404 5515 309 398 398 CD 40404 5515 310 Baltic Baltic NNP 40404 5515 311 Sea Sea NNP 40404 5515 312 , , , 40404 5515 313 170 170 CD 40404 5515 314 , , , 40404 5515 315 171 171 CD 40404 5515 316 , , , 40404 5515 317 199 199 CD 40404 5515 318 Barite Barite NNP 40404 5515 319 , , , 40404 5515 320 287 287 CD 40404 5515 321 Barrier Barrier NNP 40404 5515 322 Reefs Reefs NNPS 40404 5515 323 , , , 40404 5515 324 191 191 CD 40404 5515 325 , , , 40404 5515 326 192 192 CD 40404 5515 327 Basal Basal NNP 40404 5515 328 conglomerate conglomerate NN 40404 5515 329 , , , 40404 5515 330 173 173 CD 40404 5515 331 , , , 40404 5515 332 184 184 CD 40404 5515 333 Basalt basalt CD 40404 5515 334 , , , 40404 5515 335 249 249 CD 40404 5515 336 Baselevel Baselevel NNP 40404 5515 337 , , , 40404 5515 338 80 80 CD 40404 5515 339 , , , 40404 5515 340 83 83 CD 40404 5515 341 Basic basic JJ 40404 5515 342 rocks rock NNS 40404 5515 343 , , , 40404 5515 344 249 249 CD 40404 5515 345 Basin basin NN 40404 5515 346 deposits deposit NNS 40404 5515 347 , , , 40404 5515 348 103 103 CD 40404 5515 349 Bay Bay NNP 40404 5515 350 bars bar NNS 40404 5515 351 , , , 40404 5515 352 164 164 CD 40404 5515 353 Beaches beach NNS 40404 5515 354 , , , 40404 5515 355 162 162 CD 40404 5515 356 , , , 40404 5515 357 164 164 CD 40404 5515 358 Bears Bears NNPS 40404 5515 359 , , , 40404 5515 360 413 413 CD 40404 5515 361 Bedding Bedding NNP 40404 5515 362 planes plane NNS 40404 5515 363 , , , 40404 5515 364 5 5 CD 40404 5515 365 Belemnites belemnite NNS 40404 5515 366 , , , 40404 5515 367 382 382 CD 40404 5515 368 Belt Belt NNP 40404 5515 369 Mountains Mountains NNPS 40404 5515 370 , , , 40404 5515 371 309 309 CD 40404 5515 372 Bergschrund Bergschrund NNP 40404 5515 373 , , , 40404 5515 374 121 121 CD 40404 5515 375 , , , 40404 5515 376 135 135 CD 40404 5515 377 , , , 40404 5515 378 137 137 CD 40404 5515 379 Bermudas Bermudas NNP 40404 5515 380 , , , 40404 5515 381 148 148 CD 40404 5515 382 Birds bird NNS 40404 5515 383 , , , 40404 5515 384 392 392 CD 40404 5515 385 Bison Bison NNP 40404 5515 386 , , , 40404 5515 387 413 413 CD 40404 5515 388 Bitter Bitter NNP 40404 5515 389 Root Root NNP 40404 5515 390 Mountains Mountains NNPS 40404 5515 391 , , , 40404 5515 392 272 272 CD 40404 5515 393 Black Black NNP 40404 5515 394 Hills Hills NNP 40404 5515 395 , , , 40404 5515 396 309 309 CD 40404 5515 397 , , , 40404 5515 398 371 371 CD 40404 5515 399 Blastoids Blastoids NNPS 40404 5515 400 , , , 40404 5515 401 339 339 CD 40404 5515 402 Blastosphere Blastosphere NNP 40404 5515 403 , , , 40404 5515 404 311 311 CD 40404 5515 405 Block Block NNP 40404 5515 406 mountains mountain NNS 40404 5515 407 , , , 40404 5515 408 222 222 CD 40404 5515 409 , , , 40404 5515 410 226 226 CD 40404 5515 411 Blowholes Blowholes NNPS 40404 5515 412 , , , 40404 5515 413 159 159 CD 40404 5515 414 Blue Blue NNP 40404 5515 415 Ridge Ridge NNP 40404 5515 416 , , , 40404 5515 417 309 309 CD 40404 5515 418 , , , 40404 5515 419 316 316 CD 40404 5515 420 Bomb Bomb NNP 40404 5515 421 , , , 40404 5515 422 volcanic volcanic JJ 40404 5515 423 , , , 40404 5515 424 256 256 CD 40404 5515 425 Bonneville Bonneville NNP 40404 5515 426 , , , 40404 5515 427 Lake Lake NNP 40404 5515 428 , , , 40404 5515 429 107 107 CD 40404 5515 430 , , , 40404 5515 431 488 488 CD 40404 5515 432 Bosses boss NNS 40404 5515 433 , , , 40404 5515 434 270 270 CD 40404 5515 435 Bowlders Bowlders NNP 40404 5515 436 , , , 40404 5515 437 erratic erratic JJ 40404 5515 438 , , , 40404 5515 439 420 420 CD 40404 5515 440 of of IN 40404 5515 441 weathering weathering NN 40404 5515 442 , , , 40404 5515 443 28 28 CD 40404 5515 444 Brachiopods Brachiopods NNPS 40404 5515 445 , , , 40404 5515 446 328 328 CD 40404 5515 447 , , , 40404 5515 448 383 383 CD 40404 5515 449 , , , 40404 5515 450 343 343 CD 40404 5515 451 , , , 40404 5515 452 364 364 CD 40404 5515 453 , , , 40404 5515 454 380 380 CD 40404 5515 455 Brazil Brazil NNP 40404 5515 456 , , , 40404 5515 457 18 18 CD 40404 5515 458 , , , 40404 5515 459 286 286 CD 40404 5515 460 Breccia Breccia NNP 40404 5515 461 , , , 40404 5515 462 218 218 CD 40404 5515 463 , , , 40404 5515 464 255 255 CD 40404 5515 465 , , , 40404 5515 466 264 264 CD 40404 5515 467 British British NNP 40404 5515 468 Columbia Columbia NNP 40404 5515 469 , , , 40404 5515 470 373 373 CD 40404 5515 471 , , , 40404 5515 472 378 378 CD 40404 5515 473 Bronze Bronze NNP 40404 5515 474 stage stage NN 40404 5515 475 , , , 40404 5515 476 443 443 CD 40404 5515 477 , , , 40404 5515 478 448 448 CD 40404 5515 479 Bryozoans bryozoan NNS 40404 5515 480 , , , 40404 5515 481 333 333 CD 40404 5515 482 Bunker Bunker NNP 40404 5515 483 Hill Hill NNP 40404 5515 484 , , , 40404 5515 485 422 422 CD 40404 5515 486 Calamites calamite NNS 40404 5515 487 , , , 40404 5515 488 361 361 CD 40404 5515 489 , , , 40404 5515 490 367 367 CD 40404 5515 491 Calcareous calcareous JJ 40404 5515 492 rocks rock NNS 40404 5515 493 , , , 40404 5515 494 9 9 CD 40404 5515 495 Calciferous calciferous JJ 40404 5515 496 series series NN 40404 5515 497 , , , 40404 5515 498 327 327 CD 40404 5515 499 Calcite Calcite NNP 40404 5515 500 , , , 40404 5515 501 290 290 CD 40404 5515 502 Caldera Caldera NNP 40404 5515 503 , , , 40404 5515 504 239 239 CD 40404 5515 505 California California NNP 40404 5515 506 , , , 40404 5515 507 24 24 CD 40404 5515 508 , , , 40404 5515 509 99 99 CD 40404 5515 510 , , , 40404 5515 511 186 186 CD 40404 5515 512 , , , 40404 5515 513 152 152 CD 40404 5515 514 , , , 40404 5515 515 158 158 CD 40404 5515 516 , , , 40404 5515 517 169 169 CD 40404 5515 518 , , , 40404 5515 519 170 170 CD 40404 5515 520 , , , 40404 5515 521 197 197 CD 40404 5515 522 , , , 40404 5515 523 224 224 CD 40404 5515 524 , , , 40404 5515 525 256 256 CD 40404 5515 526 , , , 40404 5515 527 262 262 CD 40404 5515 528 , , , 40404 5515 529 287 287 CD 40404 5515 530 , , , 40404 5515 531 357 357 CD 40404 5515 532 , , , 40404 5515 533 360 360 CD 40404 5515 534 , , , 40404 5515 535 371 371 CD 40404 5515 536 , , , 40404 5515 537 400 400 CD 40404 5515 538 Great Great NNP 40404 5515 539 Valley Valley NNP 40404 5515 540 of of IN 40404 5515 541 , , , 40404 5515 542 101 101 CD 40404 5515 543 , , , 40404 5515 544 199 199 CD 40404 5515 545 , , , 40404 5515 546 372 372 CD 40404 5515 547 , , , 40404 5515 548 396 396 CD 40404 5515 549 Cambrian cambrian JJ 40404 5515 550 period period NN 40404 5515 551 , , , 40404 5515 552 315 315 CD 40404 5515 553 glaciation glaciation NN 40404 5515 554 in in RB 40404 5515 555 , , , 40404 5515 556 358 358 CD 40404 5515 557 life life NN 40404 5515 558 of of IN 40404 5515 559 , , , 40404 5515 560 319 319 CD 40404 5515 561 Camels Camels NNPS 40404 5515 562 , , , 40404 5515 563 412 412 CD 40404 5515 564 Canada Canada NNP 40404 5515 565 , , , 40404 5515 566 28 28 CD 40404 5515 567 , , , 40404 5515 568 86 86 CD 40404 5515 569 , , , 40404 5515 570 67 67 CD 40404 5515 571 , , , 40404 5515 572 69 69 CD 40404 5515 573 , , , 40404 5515 574 90 90 CD 40404 5515 575 , , , 40404 5515 576 182 182 CD 40404 5515 577 , , , 40404 5515 578 198 198 CD 40404 5515 579 , , , 40404 5515 580 200 200 CD 40404 5515 581 , , , 40404 5515 582 218 218 CD 40404 5515 583 , , , 40404 5515 584 218 218 CD 40404 5515 585 , , , 40404 5515 586 267 267 CD 40404 5515 587 , , , 40404 5515 588 307 307 CD 40404 5515 589 , , , 40404 5515 590 309 309 CD 40404 5515 591 , , , 40404 5515 592 316 316 CD 40404 5515 593 , , , 40404 5515 594 336 336 CD 40404 5515 595 , , , 40404 5515 596 364 364 CD 40404 5515 597 , , , 40404 5515 598 367 367 CD 40404 5515 599 , , , 40404 5515 600 482 482 CD 40404 5515 601 , , , 40404 5515 602 487 487 CD 40404 5515 603 Cape Cape NNP 40404 5515 604 Breton Breton NNP 40404 5515 605 Island Island NNP 40404 5515 606 , , , 40404 5515 607 198 198 CD 40404 5515 608 Cape Cape NNP 40404 5515 609 Cod Cod NNP 40404 5515 610 , , , 40404 5515 611 162 162 CD 40404 5515 612 Carbonated carbonate VBN 40404 5515 613 springs spring NNS 40404 5515 614 , , , 40404 5515 615 261 261 CD 40404 5515 616 Carbonates Carbonates NNPS 40404 5515 617 , , , 40404 5515 618 formation formation NN 40404 5515 619 of of IN 40404 5515 620 , , , 40404 5515 621 12 12 CD 40404 5515 622 Carboniferous carboniferous JJ 40404 5515 623 period period NN 40404 5515 624 , , , 40404 5515 625 350 350 CD 40404 5515 626 life life NN 40404 5515 627 of of IN 40404 5515 628 , , , 40404 5515 629 301 301 CD 40404 5515 630 Carnivores Carnivores NNPS 40404 5515 631 , , , 40404 5515 632 418 418 CD 40404 5515 633 Cascade Cascade NNP 40404 5515 634 Mountains Mountains NNPS 40404 5515 635 , , , 40404 5515 636 00 00 CD 40404 5515 637 , , , 40404 5515 638 400 400 CD 40404 5515 639 Cats cat NNS 40404 5515 640 , , , 40404 5515 641 418 418 CD 40404 5515 642 Catskill Catskill NNP 40404 5515 643 Mountains Mountains NNPS 40404 5515 644 , , , 40404 5515 645 342 342 CD 40404 5515 646 Caucasus Caucasus NNP 40404 5515 647 Mountains Mountains NNPS 40404 5515 648 , , , 40404 5515 649 399 399 CD 40404 5515 650 Caverns cavern NNS 40404 5515 651 , , , 40404 5515 652 46 46 CD 40404 5515 653 , , , 40404 5515 654 241 241 CD 40404 5515 655 Cenozoic Cenozoic NNP 40404 5515 656 era era NN 40404 5515 657 , , , 40404 5515 658 394 394 CD 40404 5515 659 Centipedes Centipedes NNPS 40404 5515 660 , , , 40404 5515 661 388 388 CD 40404 5515 662 Cephalopods Cephalopods NNPS 40404 5515 663 , , , 40404 5515 664 324 324 CD 40404 5515 665 , , , 40404 5515 666 388 388 CD 40404 5515 667 , , , 40404 5515 668 389 389 CD 40404 5515 669 , , , 40404 5515 670 344 344 CD 40404 5515 671 , , , 40404 5515 672 367 367 CD 40404 5515 673 , , , 40404 5515 674 380 380 CD 40404 5515 675 Ceratites Ceratites NNPS 40404 5515 676 , , , 40404 5515 677 380 380 CD 40404 5515 678 Ceratosaurus Ceratosaurus NNP 40404 5515 679 , , , 40404 5515 680 385 385 CD 40404 5515 681 Chain chain NN 40404 5515 682 coral coral NN 40404 5515 683 , , , 40404 5515 684 389 389 CD 40404 5515 685 , , , 40404 5515 686 843 843 CD 40404 5515 687 Chalcopyrite Chalcopyrite NNP 40404 5515 688 , , , 40404 5515 689 287 287 CD 40404 5515 690 Chalk chalk NN 40404 5515 691 , , , 40404 5515 692 9 9 CD 40404 5515 693 , , , 40404 5515 694 374 374 CD 40404 5515 695 , , , 40404 5515 696 375 375 CD 40404 5515 697 Chalybeate Chalybeate NNP 40404 5515 698 springs spring NNS 40404 5515 699 , , , 40404 5515 700 62 62 CD 40404 5515 701 Champlain champlain NN 40404 5515 702 subsidence subsidence NN 40404 5515 703 , , , 40404 5515 704 487 487 CD 40404 5515 705 Charleston Charleston NNP 40404 5515 706 earthquake earthquake NN 40404 5515 707 , , , 40404 5515 708 288 288 CD 40404 5515 709 Chazy Chazy NNP 40404 5515 710 series series NN 40404 5515 711 , , , 40404 5515 712 327 327 CD 40404 5515 713 Chelan Chelan NNP 40404 5515 714 , , , 40404 5515 715 Lake Lake NNP 40404 5515 716 , , , 40404 5515 717 141 141 CD 40404 5515 718 Chemung Chemung NNP 40404 5515 719 series series NN 40404 5515 720 , , , 40404 5515 721 341 341 CD 40404 5515 722 , , , 40404 5515 723 342 342 CD 40404 5515 724 Chesapeake Chesapeake NNP 40404 5515 725 Bay Bay NNP 40404 5515 726 , , , 40404 5515 727 169 169 CD 40404 5515 728 , , , 40404 5515 729 170 170 CD 40404 5515 730 , , , 40404 5515 731 197 197 CD 40404 5515 732 Chicago Chicago NNP 40404 5515 733 , , , 40404 5515 734 146 146 CD 40404 5515 735 , , , 40404 5515 736 198 198 CD 40404 5515 737 , , , 40404 5515 738 486 486 CD 40404 5515 739 Chile Chile NNP 40404 5515 740 , , , 40404 5515 741 286 286 CD 40404 5515 742 China China NNP 40404 5515 743 , , , 40404 5515 744 28 28 CD 40404 5515 745 , , , 40404 5515 746 161 161 CD 40404 5515 747 Christmas Christmas NNP 40404 5515 748 Island Island NNP 40404 5515 749 , , , 40404 5515 750 194 194 CD 40404 5515 751 , , , 40404 5515 752 248 248 CD 40404 5515 753 Cincinnati Cincinnati NNP 40404 5515 754 anticline anticline NN 40404 5515 755 , , , 40404 5515 756 329 329 CD 40404 5515 757 , , , 40404 5515 758 366 366 CD 40404 5515 759 Cirques Cirques NNPS 40404 5515 760 , , , 40404 5515 761 136 136 CD 40404 5515 762 Clinton Clinton NNP 40404 5515 763 series series NN 40404 5515 764 , , , 40404 5515 765 336 336 CD 40404 5515 766 Coal Coal NNP 40404 5515 767 , , , 40404 5515 768 362 362 CD 40404 5515 769 , , , 40404 5515 770 370 370 CD 40404 5515 771 , , , 40404 5515 772 375 375 CD 40404 5515 773 Coal Coal NNP 40404 5515 774 Measures Measures NNPS 40404 5515 775 , , , 40404 5515 776 351 351 CD 40404 5515 777 Coast Coast NNP 40404 5515 778 Range Range NNP 40404 5515 779 , , , 40404 5515 780 101 101 CD 40404 5515 781 , , , 40404 5515 782 372 372 CD 40404 5515 783 , , , 40404 5515 784 399 399 CD 40404 5515 785 Coastal coastal JJ 40404 5515 786 plain plain JJ 40404 5515 787 , , , 40404 5515 788 Atlantic Atlantic NNP 40404 5515 789 , , , 40404 5515 790 188 188 CD 40404 5515 791 Coelenterates Coelenterates NNPS 40404 5515 792 , , , 40404 5515 793 320 320 CD 40404 5515 794 Coke Coke NNP 40404 5515 795 , , , 40404 5515 796 271 271 CD 40404 5515 797 Colorado Colorado NNP 40404 5515 798 , , , 40404 5515 799 18 18 CD 40404 5515 800 , , , 40404 5515 801 29 29 CD 40404 5515 802 , , , 40404 5515 803 88 88 CD 40404 5515 804 , , , 40404 5515 805 87 87 CD 40404 5515 806 , , , 40404 5515 807 158 158 CD 40404 5515 808 , , , 40404 5515 809 288 288 CD 40404 5515 810 , , , 40404 5515 811 266 266 CD 40404 5515 812 , , , 40404 5515 813 271 271 CD 40404 5515 814 , , , 40404 5515 815 334 334 CD 40404 5515 816 Colorado Colorado NNP 40404 5515 817 plateaus plateaus NN 40404 5515 818 , , , 40404 5515 819 357 357 CD 40404 5515 820 , , , 40404 5515 821 403 403 CD 40404 5515 822 Colorado Colorado NNP 40404 5515 823 River River NNP 40404 5515 824 , , , 40404 5515 825 80 80 CD 40404 5515 826 , , , 40404 5515 827 76 76 CD 40404 5515 828 , , , 40404 5515 829 140 140 CD 40404 5515 830 , , , 40404 5515 831 154 154 CD 40404 5515 832 , , , 40404 5515 833 228 228 CD 40404 5515 834 , , , 40404 5515 835 307 307 CD 40404 5515 836 , , , 40404 5515 837 318 318 CD 40404 5515 838 , , , 40404 5515 839 317 317 CD 40404 5515 840 Columbia Columbia NNP 40404 5515 841 lavas lavas NN 40404 5515 842 , , , 40404 5515 843 400 400 CD 40404 5515 844 Columnar Columnar NNP 40404 5515 845 structure structure NN 40404 5515 846 , , , 40404 5515 847 268 268 CD 40404 5515 848 Concretions Concretions NNPS 40404 5515 849 , , , 40404 5515 850 49 49 CD 40404 5515 851 Cones Cones NNPS 40404 5515 852 , , , 40404 5515 853 alluvial alluvial JJ 40404 5515 854 , , , 40404 5515 855 98 98 CD 40404 5515 856 volcanic volcanic JJ 40404 5515 857 , , , 40404 5515 858 267 267 CD 40404 5515 859 Conglomerate Conglomerate NNP 40404 5515 860 , , , 40404 5515 861 9 9 CD 40404 5515 862 , , , 40404 5515 863 178 178 CD 40404 5515 864 Congo Congo NNP 40404 5515 865 River River NNP 40404 5515 866 , , , 40404 5515 867 175 175 CD 40404 5515 868 Conifers conifer NNS 40404 5515 869 , , , 40404 5515 870 377 377 CD 40404 5515 871 Connecticut Connecticut NNP 40404 5515 872 , , , 40404 5515 873 370 370 CD 40404 5515 874 valley valley NN 40404 5515 875 , , , 40404 5515 876 408 408 CD 40404 5515 877 Contemporaneous contemporaneous JJ 40404 5515 878 lava lava NN 40404 5515 879 sheets sheet NNS 40404 5515 880 , , , 40404 5515 881 248 248 CD 40404 5515 882 , , , 40404 5515 883 268 268 CD 40404 5515 884 Continental Continental NNP 40404 5515 885 delta delta NN 40404 5515 886 , , , 40404 5515 887 176 176 CD 40404 5515 888 , , , 40404 5515 889 183 183 CD 40404 5515 890 Continental continental JJ 40404 5515 891 shelf shelf NN 40404 5515 892 , , , 40404 5515 893 183 183 CD 40404 5515 894 Continents continent NNS 40404 5515 895 , , , 40404 5515 896 188 188 CD 40404 5515 897 Contours Contours NNP 40404 5515 898 , , , 40404 5515 899 60 60 CD 40404 5515 900 Copper copper NN 40404 5515 901 , , , 40404 5515 902 287 287 CD 40404 5515 903 , , , 40404 5515 904 310 310 CD 40404 5515 905 Coquina Coquina NNP 40404 5515 906 , , , 40404 5515 907 177 177 CD 40404 5515 908 Coral coral JJ 40404 5515 909 reefs reef NNS 40404 5515 910 , , , 40404 5515 911 188 188 CD 40404 5515 912 Corals Corals NNPS 40404 5515 913 , , , 40404 5515 914 ancient ancient JJ 40404 5515 915 , , , 40404 5515 916 321 321 CD 40404 5515 917 , , , 40404 5515 918 332 332 CD 40404 5515 919 , , , 40404 5515 920 338 338 CD 40404 5515 921 , , , 40404 5515 922 379 379 CD 40404 5515 923 Cordaites Cordaites NNPS 40404 5515 924 , , , 40404 5515 925 363 363 CD 40404 5515 926 Cordilleran cordilleran NN 40404 5515 927 ice ice NN 40404 5515 928 field field NN 40404 5515 929 , , , 40404 5515 930 426 426 CD 40404 5515 931 Corniferous corniferous JJ 40404 5515 932 series series NN 40404 5515 933 , , , 40404 5515 934 341 341 NNP 40404 5515 935 Coves cove NNS 40404 5515 936 , , , 40404 5515 937 161 161 CD 40404 5515 938 Crabs Crabs NNPS 40404 5515 939 , , , 40404 5515 940 379 379 CD 40404 5515 941 Crandall crandall NN 40404 5515 942 volcano volcano NN 40404 5515 943 , , , 40404 5515 944 268 268 CD 40404 5515 945 , , , 40404 5515 946 400 400 CD 40404 5515 947 Crater Crater NNP 40404 5515 948 Lake Lake NNP 40404 5515 949 , , , 40404 5515 950 259 259 CD 40404 5515 951 Creodonts creodont NNS 40404 5515 952 , , , 40404 5515 953 418 418 CD 40404 5515 954 Cretaceous cretaceous JJ 40404 5515 955 period period NN 40404 5515 956 , , , 40404 5515 957 372 372 CD 40404 5515 958 Crinoids crinoid NNS 40404 5515 959 , , , 40404 5515 960 382 382 CD 40404 5515 961 , , , 40404 5515 962 303 303 CD 40404 5515 963 , , , 40404 5515 964 379 379 CD 40404 5515 965 Crocodiles Crocodiles NNPS 40404 5515 966 , , , 40404 5515 967 384 384 CD 40404 5515 968 Cross Cross NNP 40404 5515 969 bedding bedding NN 40404 5515 970 , , , 40404 5515 971 65 65 CD 40404 5515 972 , , , 40404 5515 973 182 182 CD 40404 5515 974 Crustacea Crustacea NNP 40404 5515 975 , , , 40404 5515 976 322 322 CD 40404 5515 977 , , , 40404 5515 978 382 382 CD 40404 5515 979 , , , 40404 5515 980 368 368 CD 40404 5515 981 , , , 40404 5515 982 379 379 CD 40404 5515 983 Crustal crustal JJ 40404 5515 984 movements movement NNS 40404 5515 985 , , , 40404 5515 986 195 195 CD 40404 5515 987 Cumberland Cumberland NNP 40404 5515 988 plateau plateau NN 40404 5515 989 , , , 40404 5515 990 90 90 CD 40404 5515 991 Cup Cup NNP 40404 5515 992 corals coral NNS 40404 5515 993 , , , 40404 5515 994 388 388 CD 40404 5515 995 Cycads Cycads NNPS 40404 5515 996 , , , 40404 5515 997 377 377 CD 40404 5515 998 , , , 40404 5515 999 378 378 CD 40404 5515 1000 Cycle cycle NN 40404 5515 1001 of of IN 40404 5515 1002 erosion erosion NN 40404 5515 1003 , , , 40404 5515 1004 84 84 CD 40404 5515 1005 , , , 40404 5515 1006 185 185 CD 40404 5515 1007 , , , 40404 5515 1008 292 292 CD 40404 5515 1009 Cystoids Cystoids NNPS 40404 5515 1010 , , , 40404 5515 1011 321 321 CD 40404 5515 1012 , , , 40404 5515 1013 382 382 CD 40404 5515 1014 , , , 40404 5515 1015 367 367 CD 40404 5515 1016 Dalmatia Dalmatia NNP 40404 5515 1017 , , , 40404 5515 1018 170 170 CD 40404 5515 1019 Darwin Darwin NNP 40404 5515 1020 's 's POS 40404 5515 1021 theory theory NN 40404 5515 1022 of of IN 40404 5515 1023 coral coral JJ 40404 5515 1024 reefs reef NNS 40404 5515 1025 , , , 40404 5515 1026 191 191 CD 40404 5515 1027 Dead Dead NNP 40404 5515 1028 Sea Sea NNP 40404 5515 1029 , , , 40404 5515 1030 221 221 CD 40404 5515 1031 , , , 40404 5515 1032 279 279 CD 40404 5515 1033 Death Death NNP 40404 5515 1034 Gulch Gulch NNP 40404 5515 1035 , , , 40404 5515 1036 264 264 CD 40404 5515 1037 Deep deep JJ 40404 5515 1038 - - HYPH 40404 5515 1039 sea sea NN 40404 5515 1040 deposits deposit NNS 40404 5515 1041 , , , 40404 5515 1042 187 187 CD 40404 5515 1043 Deer Deer NNS 40404 5515 1044 , , , 40404 5515 1045 413 413 CD 40404 5515 1046 Deflation deflation NN 40404 5515 1047 , , , 40404 5515 1048 152 152 CD 40404 5515 1049 Deformation deformation NN 40404 5515 1050 , , , 40404 5515 1051 279 279 CD 40404 5515 1052 Delaware Delaware NNP 40404 5515 1053 River River NNP 40404 5515 1054 , , , 40404 5515 1055 197 197 CD 40404 5515 1056 , , , 40404 5515 1057 403 403 CD 40404 5515 1058 Deltas delta NNS 40404 5515 1059 , , , 40404 5515 1060 108 108 CD 40404 5515 1061 , , , 40404 5515 1062 111 111 CD 40404 5515 1063 , , , 40404 5515 1064 197 197 CD 40404 5515 1065 of of IN 40404 5515 1066 Ganges Ganges NNP 40404 5515 1067 , , , 40404 5515 1068 109 109 CD 40404 5515 1069 of of IN 40404 5515 1070 Indus Indus NNP 40404 5515 1071 , , , 40404 5515 1072 110 110 CD 40404 5515 1073 of of IN 40404 5515 1074 Mississippi Mississippi NNP 40404 5515 1075 , , , 40404 5515 1076 109 109 CD 40404 5515 1077 , , , 40404 5515 1078 197 197 CD 40404 5515 1079 Denudation denudation NN 40404 5515 1080 , , , 40404 5515 1081 57 57 CD 40404 5515 1082 Denver Denver NNP 40404 5515 1083 , , , 40404 5515 1084 398 398 CD 40404 5515 1085 Desert Desert NNP 40404 5515 1086 , , , 40404 5515 1087 15 15 CD 40404 5515 1088 , , , 40404 5515 1089 55 55 CD 40404 5515 1090 Devitrification Devitrification NNP 40404 5515 1091 , , , 40404 5515 1092 257 257 CD 40404 5515 1093 Devonian devonian JJ 40404 5515 1094 period period NN 40404 5515 1095 , , , 40404 5515 1096 316 316 CD 40404 5515 1097 , , , 40404 5515 1098 341 341 CD 40404 5515 1099 Dicotyls Dicotyls NNP 40404 5515 1100 , , , 40404 5515 1101 377 377 CD 40404 5515 1102 , , , 40404 5515 1103 404 404 CD 40404 5515 1104 Digitigrade Digitigrade NNP 40404 5515 1105 , , , 40404 5515 1106 406 406 CD 40404 5515 1107 Dikes dike NNS 40404 5515 1108 , , , 40404 5515 1109 244 244 CD 40404 5515 1110 , , , 40404 5515 1111 265 265 CD 40404 5515 1112 Dinosaurs dinosaur NNS 40404 5515 1113 , , , 40404 5515 1114 385 385 CD 40404 5515 1115 Dinothere Dinothere NNP 40404 5515 1116 , , , 40404 5515 1117 410 410 CD 40404 5515 1118 Diorite Diorite NNP 40404 5515 1119 , , , 40404 5515 1120 274 274 CD 40404 5515 1121 Dip Dip NNP 40404 5515 1122 , , , 40404 5515 1123 202 202 CD 40404 5515 1124 Dip dip NN 40404 5515 1125 fault fault NN 40404 5515 1126 , , , 40404 5515 1127 225 225 CD 40404 5515 1128 Diplodocus Diplodocus NNP 40404 5515 1129 , , , 40404 5515 1130 286 286 CD 40404 5515 1131 Dipnoans Dipnoans NNPS 40404 5515 1132 , , , 40404 5515 1133 346 346 CD 40404 5515 1134 Discina Discina NNP 40404 5515 1135 , , , 40404 5515 1136 324 324 CD 40404 5515 1137 Dismal Dismal NNP 40404 5515 1138 Swamp Swamp NNP 40404 5515 1139 , , , 40404 5515 1140 106 106 CD 40404 5515 1141 Dogs dog NNS 40404 5515 1142 , , , 40404 5515 1143 413 413 CD 40404 5515 1144 Dragon Dragon NNP 40404 5515 1145 flies fly NNS 40404 5515 1146 , , , 40404 5515 1147 364 364 CD 40404 5515 1148 Drift Drift NNP 40404 5515 1149 , , , 40404 5515 1150 18 18 CD 40404 5515 1151 , , , 40404 5515 1152 113 113 CD 40404 5515 1153 , , , 40404 5515 1154 416 416 CD 40404 5515 1155 bowlders bowlder NNS 40404 5515 1156 of of IN 40404 5515 1157 , , , 40404 5515 1158 420 420 CD 40404 5515 1159 englacial englacial NN 40404 5515 1160 , , , 40404 5515 1161 125 125 CD 40404 5515 1162 extent extent NN 40404 5515 1163 of of IN 40404 5515 1164 , , , 40404 5515 1165 425 425 CD 40404 5515 1166 pebbles pebble NNS 40404 5515 1167 of of IN 40404 5515 1168 , , , 40404 5515 1169 114 114 CD 40404 5515 1170 , , , 40404 5515 1171 420 420 CD 40404 5515 1172 stratified stratify VBD 40404 5515 1173 , , , 40404 5515 1174 423 423 CD 40404 5515 1175 thickness thickness NN 40404 5515 1176 of of IN 40404 5515 1177 , , , 40404 5515 1178 429 429 CD 40404 5515 1179 Driftless Driftless NNP 40404 5515 1180 area area NN 40404 5515 1181 , , , 40404 5515 1182 438 438 CD 40404 5515 1183 Drowned drown VBN 40404 5515 1184 valleys valley NNS 40404 5515 1185 , , , 40404 5515 1186 197 197 CD 40404 5515 1187 Drumlins drumlin NNS 40404 5515 1188 , , , 40404 5515 1189 421 421 CD 40404 5515 1190 Duluth Duluth NNP 40404 5515 1191 , , , 40404 5515 1192 436 436 CD 40404 5515 1193 Dunes dune NNS 40404 5515 1194 , , , 40404 5515 1195 147 147 CD 40404 5515 1196 Dust Dust NNP 40404 5515 1197 falls fall NNS 40404 5515 1198 , , , 40404 5515 1199 145 145 CD 40404 5515 1200 Earth Earth NNP 40404 5515 1201 , , , 40404 5515 1202 age age NN 40404 5515 1203 of of IN 40404 5515 1204 , , , 40404 5515 1205 292 292 CD 40404 5515 1206 , , , 40404 5515 1207 298 298 CD 40404 5515 1208 , , , 40404 5515 1209 302 302 CD 40404 5515 1210 interior interior NN 40404 5515 1211 of of IN 40404 5515 1212 , , , 40404 5515 1213 276 276 CD 40404 5515 1214 Earthquakes earthquake NNS 40404 5515 1215 , , , 40404 5515 1216 224 224 CD 40404 5515 1217 , , , 40404 5515 1218 233 233 CD 40404 5515 1219 causes cause NNS 40404 5515 1220 of of IN 40404 5515 1221 , , , 40404 5515 1222 233 233 CD 40404 5515 1223 , , , 40404 5515 1224 237 237 CD 40404 5515 1225 Charleston Charleston NNP 40404 5515 1226 , , , 40404 5515 1227 233 233 CD 40404 5515 1228 distribution distribution NN 40404 5515 1229 of of IN 40404 5515 1230 , , , 40404 5515 1231 236 236 CD 40404 5515 1232 geological geological JJ 40404 5515 1233 effects effect NNS 40404 5515 1234 of of IN 40404 5515 1235 , , , 40404 5515 1236 234 234 CD 40404 5515 1237 India India NNP 40404 5515 1238 , , , 40404 5515 1239 236 236 CD 40404 5515 1240 Japan Japan NNP 40404 5515 1241 , , , 40404 5515 1242 237 237 CD 40404 5515 1243 New New NNP 40404 5515 1244 Madrid Madrid NNP 40404 5515 1245 , , , 40404 5515 1246 236 236 CD 40404 5515 1247 Earthworms earthworm NNS 40404 5515 1248 , , , 40404 5515 1249 20 20 CD 40404 5515 1250 , , , 40404 5515 1251 21 21 CD 40404 5515 1252 Echinoderms Echinoderms NNPS 40404 5515 1253 , , , 40404 5515 1254 321 321 CD 40404 5515 1255 , , , 40404 5515 1256 332 332 CD 40404 5515 1257 , , , 40404 5515 1258 333 333 CD 40404 5515 1259 , , , 40404 5515 1260 343 343 CD 40404 5515 1261 , , , 40404 5515 1262 363 363 CD 40404 5515 1263 Edentates Edentates NNPS 40404 5515 1264 , , , 40404 5515 1265 441 441 CD 40404 5515 1266 Egypt Egypt NNP 40404 5515 1267 , , , 40404 5515 1268 98 98 CD 40404 5515 1269 Electric Electric NNP 40404 5515 1270 Peak Peak NNP 40404 5515 1271 , , , 40404 5515 1272 269 269 CD 40404 5515 1273 Elephants elephant NNS 40404 5515 1274 , , , 40404 5515 1275 410 410 CD 40404 5515 1276 Elevation elevation NN 40404 5515 1277 , , , 40404 5515 1278 effects effect NNS 40404 5515 1279 of of IN 40404 5515 1280 , , , 40404 5515 1281 85 85 CD 40404 5515 1282 movements movement NNS 40404 5515 1283 of of IN 40404 5515 1284 , , , 40404 5515 1285 197 197 CD 40404 5515 1286 Eocene eocene NN 40404 5515 1287 epoch epoch NN 40404 5515 1288 , , , 40404 5515 1289 395 395 CD 40404 5515 1290 Epicontinental Epicontinental NNP 40404 5515 1291 seas sea NNS 40404 5515 1292 , , , 40404 5515 1293 318 318 CD 40404 5515 1294 Erratics Erratics NNP 40404 5515 1295 , , , 40404 5515 1296 133 133 CD 40404 5515 1297 , , , 40404 5515 1298 420 420 CD 40404 5515 1299 Eskers Eskers NNPS 40404 5515 1300 , , , 40404 5515 1301 424 424 CD 40404 5515 1302 Etna Etna NNP 40404 5515 1303 , , , 40404 5515 1304 248 248 CD 40404 5515 1305 , , , 40404 5515 1306 402 402 CD 40404 5515 1307 Europe Europe NNP 40404 5515 1308 , , , 40404 5515 1309 Pleistocene Pleistocene NNP 40404 5515 1310 ice ice NN 40404 5515 1311 sheet sheet NN 40404 5515 1312 of of IN 40404 5515 1313 , , , 40404 5515 1314 427 427 CD 40404 5515 1315 Eurypterids eurypterid NNS 40404 5515 1316 , , , 40404 5515 1317 333 333 CD 40404 5515 1318 , , , 40404 5515 1319 339 339 CD 40404 5515 1320 , , , 40404 5515 1321 363 363 CD 40404 5515 1322 , , , 40404 5515 1323 367 367 CD 40404 5515 1324 Evolution evolution NN 40404 5515 1325 , , , 40404 5515 1326 300 300 CD 40404 5515 1327 , , , 40404 5515 1328 447 447 CD 40404 5515 1329 Faceted faceted JJ 40404 5515 1330 pebbles pebble NNS 40404 5515 1331 , , , 40404 5515 1332 113 113 CD 40404 5515 1333 , , , 40404 5515 1334 114 114 CD 40404 5515 1335 , , , 40404 5515 1336 420 420 CD 40404 5515 1337 Falls Falls NNPS 40404 5515 1338 of of IN 40404 5515 1339 the the DT 40404 5515 1340 Ohio Ohio NNP 40404 5515 1341 , , , 40404 5515 1342 343 343 CD 40404 5515 1343 Fan Fan NNP 40404 5515 1344 folds fold NNS 40404 5515 1345 , , , 40404 5515 1346 205 205 CD 40404 5515 1347 Fault Fault NNP 40404 5515 1348 scarps scarps NN 40404 5515 1349 , , , 40404 5515 1350 219 219 CD 40404 5515 1351 Faults fault NNS 40404 5515 1352 , , , 40404 5515 1353 217 217 CD 40404 5515 1354 Faunas fauna NNS 40404 5515 1355 , , , 40404 5515 1356 299 299 CD 40404 5515 1357 Feldspar Feldspar NNP 40404 5515 1358 , , , 40404 5515 1359 9 9 CD 40404 5515 1360 , , , 40404 5515 1361 10 10 CD 40404 5515 1362 , , , 40404 5515 1363 42 42 CD 40404 5515 1364 Ferns fern NNS 40404 5515 1365 , , , 40404 5515 1366 361 361 CD 40404 5515 1367 Finger Finger NNP 40404 5515 1368 lakes lake NNS 40404 5515 1369 , , , 40404 5515 1370 432 432 CD 40404 5515 1371 Fire Fire NNP 40404 5515 1372 clay clay NN 40404 5515 1373 , , , 40404 5515 1374 353 353 CD 40404 5515 1375 Fishes Fishes NNP 40404 5515 1376 , , , 40404 5515 1377 334 334 CD 40404 5515 1378 , , , 40404 5515 1379 339 339 CD 40404 5515 1380 , , , 40404 5515 1381 345 345 CD 40404 5515 1382 , , , 40404 5515 1383 364 364 CD 40404 5515 1384 , , , 40404 5515 1385 405 405 CD 40404 5515 1386 Fissure Fissure NNP 40404 5515 1387 eruptions eruption NNS 40404 5515 1388 , , , 40404 5515 1389 242 242 CD 40404 5515 1390 Fissure Fissure NNP 40404 5515 1391 springs spring NNS 40404 5515 1392 , , , 40404 5515 1393 44 44 CD 40404 5515 1394 Fjords Fjords NNPS 40404 5515 1395 , , , 40404 5515 1396 139 139 CD 40404 5515 1397 , , , 40404 5515 1398 142 142 CD 40404 5515 1399 Flint Flint NNP 40404 5515 1400 , , , 40404 5515 1401 18 18 CD 40404 5515 1402 , , , 40404 5515 1403 375 375 CD 40404 5515 1404 Flood flood NN 40404 5515 1405 plains plain NNS 40404 5515 1406 , , , 40404 5515 1407 85 85 CD 40404 5515 1408 , , , 40404 5515 1409 93 93 CD 40404 5515 1410 Floods flood NNS 40404 5515 1411 , , , 40404 5515 1412 54 54 CD 40404 5515 1413 Floras flora NNS 40404 5515 1414 , , , 40404 5515 1415 299 299 CD 40404 5515 1416 Florida Florida NNP 40404 5515 1417 , , , 40404 5515 1418 46 46 CD 40404 5515 1419 , , , 40404 5515 1420 163 163 CD 40404 5515 1421 , , , 40404 5515 1422 177 177 CD 40404 5515 1423 , , , 40404 5515 1424 178 178 CD 40404 5515 1425 , , , 40404 5515 1426 188 188 CD 40404 5515 1427 , , , 40404 5515 1428 396 396 CD 40404 5515 1429 Flow Flow NNP 40404 5515 1430 lines line NNS 40404 5515 1431 , , , 40404 5515 1432 252 252 CD 40404 5515 1433 Fluorite Fluorite NNP 40404 5515 1434 , , , 40404 5515 1435 287 287 CD 40404 5515 1436 Folded Folded NNP 40404 5515 1437 mountains mountain NNS 40404 5515 1438 , , , 40404 5515 1439 210 210 CD 40404 5515 1440 Folds fold NNS 40404 5515 1441 , , , 40404 5515 1442 201 201 CD 40404 5515 1443 , , , 40404 5515 1444 208 208 CD 40404 5515 1445 Foliation Foliation NNP 40404 5515 1446 , , , 40404 5515 1447 283 283 CD 40404 5515 1448 Foraminifera Foraminifera NNP 40404 5515 1449 , , , 40404 5515 1450 187 187 CD 40404 5515 1451 , , , 40404 5515 1452 374 374 CD 40404 5515 1453 : : : 40404 5515 1454 Forests forest NNS 40404 5515 1455 , , , 40404 5515 1456 Carboniferous Carboniferous NNP 40404 5515 1457 , , , 40404 5515 1458 354 354 CD 40404 5515 1459 , , , 40404 5515 1460 361 361 CD 40404 5515 1461 Cretaceous cretaceous JJ 40404 5515 1462 , , , 40404 5515 1463 377 377 CD 40404 5515 1464 , , , 40404 5515 1465 378 378 CD 40404 5515 1466 Devonian Devonian NNP 40404 5515 1467 , , , 40404 5515 1468 343 343 CD 40404 5515 1469 Tertiary Tertiary NNP 40404 5515 1470 , , , 40404 5515 1471 404 404 CD 40404 5515 1472 Fort Fort NNP 40404 5515 1473 Wayne Wayne NNP 40404 5515 1474 , , , 40404 5515 1475 436 436 CD 40404 5515 1476 Fossils fossil NNS 40404 5515 1477 , , , 40404 5515 1478 177 177 CD 40404 5515 1479 , , , 40404 5515 1480 296 296 CD 40404 5515 1481 Fractures fracture NNS 40404 5515 1482 , , , 40404 5515 1483 215 215 CD 40404 5515 1484 Fragmental Fragmental NNP 40404 5515 1485 rocks rock NNS 40404 5515 1486 , , , 40404 5515 1487 8 8 CD 40404 5515 1488 France France NNP 40404 5515 1489 , , , 40404 5515 1490 167 167 CD 40404 5515 1491 , , , 40404 5515 1492 171 171 CD 40404 5515 1493 cave cave NN 40404 5515 1494 men man NNS 40404 5515 1495 of of IN 40404 5515 1496 , , , 40404 5515 1497 445 445 CD 40404 5515 1498 Fringing fringing NN 40404 5515 1499 reefs reef NNS 40404 5515 1500 , , , 40404 5515 1501 190 190 CD 40404 5515 1502 Frogs frog NNS 40404 5515 1503 , , , 40404 5515 1504 383 383 CD 40404 5515 1505 Frost frost NN 40404 5515 1506 , , , 40404 5515 1507 15 15 CD 40404 5515 1508 Fundy Fundy NNP 40404 5515 1509 , , , 40404 5515 1510 Bay Bay NNP 40404 5515 1511 of of IN 40404 5515 1512 , , , 40404 5515 1513 182 182 CD 40404 5515 1514 Gabbro Gabbro NNP 40404 5515 1515 , , , 40404 5515 1516 274 274 CD 40404 5515 1517 Ganges gange NNS 40404 5515 1518 , , , 40404 5515 1519 58 58 CD 40404 5515 1520 , , , 40404 5515 1521 109 109 CD 40404 5515 1522 , , , 40404 5515 1523 197 197 CD 40404 5515 1524 Ganoids Ganoids NNP 40404 5515 1525 , , , 40404 5515 1526 347 347 CD 40404 5515 1527 Garnet Garnet NNP 40404 5515 1528 , , , 40404 5515 1529 281 281 CD 40404 5515 1530 Gases gas NNS 40404 5515 1531 , , , 40404 5515 1532 volcanic volcanic JJ 40404 5515 1533 , , , 40404 5515 1534 244 244 CD 40404 5515 1535 Gastropods Gastropods NNPS 40404 5515 1536 , , , 40404 5515 1537 324 324 CD 40404 5515 1538 Gastrula Gastrula NNP 40404 5515 1539 , , , 40404 5515 1540 311 311 CD 40404 5515 1541 Geneva Geneva NNP 40404 5515 1542 , , , 40404 5515 1543 Lake Lake NNP 40404 5515 1544 , , , 40404 5515 1545 71 71 CD 40404 5515 1546 Geodes Geodes NNP 40404 5515 1547 , , , 40404 5515 1548 49 49 CD 40404 5515 1549 Geological geological JJ 40404 5515 1550 time time NN 40404 5515 1551 , , , 40404 5515 1552 divisions division NNS 40404 5515 1553 of of IN 40404 5515 1554 , , , 40404 5515 1555 295 295 CD 40404 5515 1556 Geology Geology NNP 40404 5515 1557 , , , 40404 5515 1558 definition definition NN 40404 5515 1559 of of IN 40404 5515 1560 , , , 40404 5515 1561 1 1 CD 40404 5515 1562 , , , 40404 5515 1563 3 3 CD 40404 5515 1564 departments department NNS 40404 5515 1565 of of IN 40404 5515 1566 , , , 40404 5515 1567 4 4 CD 40404 5515 1568 Georgia Georgia NNP 40404 5515 1569 , , , 40404 5515 1570 18 18 CD 40404 5515 1571 , , , 40404 5515 1572 373 373 CD 40404 5515 1573 Geysers geyser NNS 40404 5515 1574 , , , 40404 5515 1575 52 52 CD 40404 5515 1576 , , , 40404 5515 1577 260 260 CD 40404 5515 1578 Glacial glacial JJ 40404 5515 1579 epoch epoch NN 40404 5515 1580 , , , 40404 5515 1581 142 142 CD 40404 5515 1582 , , , 40404 5515 1583 416 416 CD 40404 5515 1584 Glaciers glacier NNS 40404 5515 1585 , , , 40404 5515 1586 113 113 CD 40404 5515 1587 abrasion abrasion NN 40404 5515 1588 by by IN 40404 5515 1589 , , , 40404 5515 1590 133 133 CD 40404 5515 1591 Alpine Alpine NNP 40404 5515 1592 , , , 40404 5515 1593 118 118 CD 40404 5515 1594 compared compare VBN 40404 5515 1595 with with IN 40404 5515 1596 rivers river NNS 40404 5515 1597 , , , 40404 5515 1598 137 137 CD 40404 5515 1599 , , , 40404 5515 1600 142 142 CD 40404 5515 1601 crevasses crevasse NNS 40404 5515 1602 of of IN 40404 5515 1603 , , , 40404 5515 1604 123 123 CD 40404 5515 1605 deposition deposition NN 40404 5515 1606 by by IN 40404 5515 1607 , , , 40404 5515 1608 138 138 CD 40404 5515 1609 Greenland Greenland NNP 40404 5515 1610 , , , 40404 5515 1611 116 116 CD 40404 5515 1612 lower low JJR 40404 5515 1613 limit limit NN 40404 5515 1614 of of IN 40404 5515 1615 , , , 40404 5515 1616 129 129 CD 40404 5515 1617 melting melting NN 40404 5515 1618 of of IN 40404 5515 1619 , , , 40404 5515 1620 126 126 CD 40404 5515 1621 mode mode NN 40404 5515 1622 of of IN 40404 5515 1623 formation formation NN 40404 5515 1624 , , , 40404 5515 1625 118 118 CD 40404 5515 1626 moraines moraine NNS 40404 5515 1627 , , , 40404 5515 1628 124 124 CD 40404 5515 1629 motion motion NN 40404 5515 1630 of of IN 40404 5515 1631 , , , 40404 5515 1632 120 120 CD 40404 5515 1633 , , , 40404 5515 1634 122 122 CD 40404 5515 1635 , , , 40404 5515 1636 134 134 CD 40404 5515 1637 piedmont piedmont NN 40404 5515 1638 , , , 40404 5515 1639 131 131 CD 40404 5515 1640 , , , 40404 5515 1641 141 141 CD 40404 5515 1642 plucking plucking NN 40404 5515 1643 by by IN 40404 5515 1644 , , , 40404 5515 1645 133 133 CD 40404 5515 1646 tables table NNS 40404 5515 1647 , , , 40404 5515 1648 130 130 CD 40404 5515 1649 transportation transportation NN 40404 5515 1650 by by IN 40404 5515 1651 , , , 40404 5515 1652 132 132 CD 40404 5515 1653 troughs trough NNS 40404 5515 1654 , , , 40404 5515 1655 137 137 CD 40404 5515 1656 wells well NNS 40404 5515 1657 , , , 40404 5515 1658 129 129 CD 40404 5515 1659 young young JJ 40404 5515 1660 and and CC 40404 5515 1661 mature mature JJ 40404 5515 1662 , , , 40404 5515 1663 129 129 CD 40404 5515 1664 Glauconite Glauconite NNP 40404 5515 1665 , , , 40404 5515 1666 176 176 CD 40404 5515 1667 Globigerina Globigerina NNP 40404 5515 1668 ooze ooze NN 40404 5515 1669 , , , 40404 5515 1670 187 187 CD 40404 5515 1671 Glyptodon Glyptodon NNP 40404 5515 1672 , , , 40404 5515 1673 441 441 CD 40404 5515 1674 Gneiss Gneiss NNP 40404 5515 1675 , , , 40404 5515 1676 283 283 CD 40404 5515 1677 Goats Goats NNP 40404 5515 1678 , , , 40404 5515 1679 413 413 CD 40404 5515 1680 Gold gold NN 40404 5515 1681 , , , 40404 5515 1682 287 287 CD 40404 5515 1683 , , , 40404 5515 1684 372 372 CD 40404 5515 1685 Goniatite Goniatite NNP 40404 5515 1686 , , , 40404 5515 1687 344 344 CD 40404 5515 1688 , , , 40404 5515 1689 367 367 CD 40404 5515 1690 Graded graded JJ 40404 5515 1691 slopes slope NNS 40404 5515 1692 , , , 40404 5515 1693 25 25 CD 40404 5515 1694 Granite Granite NNP 40404 5515 1695 , , , 40404 5515 1696 9 9 CD 40404 5515 1697 , , , 40404 5515 1698 274 274 CD 40404 5515 1699 Graphite Graphite NNP 40404 5515 1700 , , , 40404 5515 1701 312 312 CD 40404 5515 1702 Graptolites graptolite NNS 40404 5515 1703 , , , 40404 5515 1704 320 320 CD 40404 5515 1705 , , , 40404 5515 1706 339 339 CD 40404 5515 1707 Gravitation Gravitation NNP 40404 5515 1708 , , , 40404 5515 1709 22 22 CD 40404 5515 1710 Great Great NNP 40404 5515 1711 Basin Basin NNP 40404 5515 1712 , , , 40404 5515 1713 357 357 CD 40404 5515 1714 , , , 40404 5515 1715 360 360 CD 40404 5515 1716 , , , 40404 5515 1717 374 374 CD 40404 5515 1718 , , , 40404 5515 1719 376 376 CD 40404 5515 1720 Great Great NNP 40404 5515 1721 Lakes Lakes NNPS 40404 5515 1722 , , , 40404 5515 1723 198 198 CD 40404 5515 1724 , , , 40404 5515 1725 436 436 CD 40404 5515 1726 Great Great NNP 40404 5515 1727 Plains Plains NNPS 40404 5515 1728 , , , 40404 5515 1729 82 82 CD 40404 5515 1730 Great Great NNP 40404 5515 1731 Salt Salt NNP 40404 5515 1732 Lake Lake NNP 40404 5515 1733 , , , 40404 5515 1734 107 107 CD 40404 5515 1735 Greenland Greenland NNP 40404 5515 1736 , , , 40404 5515 1737 115 115 CD 40404 5515 1738 , , , 40404 5515 1739 126 126 CD 40404 5515 1740 , , , 40404 5515 1741 378 378 CD 40404 5515 1742 Green Green NNP 40404 5515 1743 Mountains Mountains NNPS 40404 5515 1744 , , , 40404 5515 1745 309 309 CD 40404 5515 1746 , , , 40404 5515 1747 316 316 CD 40404 5515 1748 , , , 40404 5515 1749 420 420 CD 40404 5515 1750 Green green JJ 40404 5515 1751 sand sand NN 40404 5515 1752 , , , 40404 5515 1753 176 176 CD 40404 5515 1754 Ground Ground NNP 40404 5515 1755 water water NN 40404 5515 1756 , , , 40404 5515 1757 39 39 CD 40404 5515 1758 Ground Ground NNP 40404 5515 1759 water water NN 40404 5515 1760 surface surface NN 40404 5515 1761 , , , 40404 5515 1762 40 40 CD 40404 5515 1763 Gryphæa Gryphæa NNP 40404 5515 1764 , , , 40404 5515 1765 379 379 CD 40404 5515 1766 Gymnosperms Gymnosperms NNPS 40404 5515 1767 , , , 40404 5515 1768 363 363 CD 40404 5515 1769 , , , 40404 5515 1770 377 377 CD 40404 5515 1771 Gypsum Gypsum NNP 40404 5515 1772 , , , 40404 5515 1773 12 12 CD 40404 5515 1774 , , , 40404 5515 1775 335 335 CD 40404 5515 1776 , , , 40404 5515 1777 357 357 CD 40404 5515 1778 , , , 40404 5515 1779 371 371 CD 40404 5515 1780 Hade Hade NNP 40404 5515 1781 , , , 40404 5515 1782 217 217 CD 40404 5515 1783 Hamilton Hamilton NNP 40404 5515 1784 series series NN 40404 5515 1785 , , , 40404 5515 1786 341 341 CD 40404 5515 1787 Hanging Hanging NNP 40404 5515 1788 valley valley NN 40404 5515 1789 , , , 40404 5515 1790 1389 1389 CD 40404 5515 1791 Hanging Hanging NNP 40404 5515 1792 wall wall NN 40404 5515 1793 , , , 40404 5515 1794 217 217 CD 40404 5515 1795 Hartz Hartz NNP 40404 5515 1796 Mountains Mountains NNPS 40404 5515 1797 , , , 40404 5515 1798 214 214 CD 40404 5515 1799 Hawaiian hawaiian JJ 40404 5515 1800 volcanoes volcano NNS 40404 5515 1801 , , , 40404 5515 1802 238 238 CD 40404 5515 1803 , , , 40404 5515 1804 248 248 CD 40404 5515 1805 , , , 40404 5515 1806 258 258 CD 40404 5515 1807 , , , 40404 5515 1808 279 279 CD 40404 5515 1809 Heat Heat NNP 40404 5515 1810 and and CC 40404 5515 1811 cold cold JJ 40404 5515 1812 , , , 40404 5515 1813 13 13 CD 40404 5515 1814 Helderberg Helderberg NNP 40404 5515 1815 series series NN 40404 5515 1816 , , , 40404 5515 1817 341 341 CD 40404 5515 1818 Hematite Hematite NNP 40404 5515 1819 , , , 40404 5515 1820 310 310 CD 40404 5515 1821 Henry Henry NNP 40404 5515 1822 Mountains Mountains NNPS 40404 5515 1823 , , , 40404 5515 1824 271 271 CD 40404 5515 1825 , , , 40404 5515 1826 376 376 CD 40404 5515 1827 High High NNP 40404 5515 1828 Plains Plains NNPS 40404 5515 1829 , , , 40404 5515 1830 100 100 CD 40404 5515 1831 , , , 40404 5515 1832 398 398 CD 40404 5515 1833 Hillers Hillers NNPS 40404 5515 1834 Mountain Mountain NNP 40404 5515 1835 , , , 40404 5515 1836 271 271 CD 40404 5515 1837 Himalaya Himalaya NNP 40404 5515 1838 Mountains Mountains NNPS 40404 5515 1839 , , , 40404 5515 1840 122 122 CD 40404 5515 1841 , , , 40404 5515 1842 209 209 CD 40404 5515 1843 , , , 40404 5515 1844 210 210 CD 40404 5515 1845 , , , 40404 5515 1846 399 399 CD 40404 5515 1847 Historical historical JJ 40404 5515 1848 geology geology NN 40404 5515 1849 , , , 40404 5515 1850 4 4 CD 40404 5515 1851 , , , 40404 5515 1852 291 291 CD 40404 5515 1853 Honeycomb Honeycomb NNP 40404 5515 1854 corals coral NNS 40404 5515 1855 , , , 40404 5515 1856 339 339 CD 40404 5515 1857 Hood Hood NNP 40404 5515 1858 , , , 40404 5515 1859 Mount Mount NNP 40404 5515 1860 , , , 40404 5515 1861 260 260 CD 40404 5515 1862 , , , 40404 5515 1863 262 262 CD 40404 5515 1864 Hooks hook NNS 40404 5515 1865 , , , 40404 5515 1866 165 165 CD 40404 5515 1867 Hornblende Hornblende NNP 40404 5515 1868 , , , 40404 5515 1869 274 274 CD 40404 5515 1870 Hornblende Hornblende NNP 40404 5515 1871 schist schist NN 40404 5515 1872 , , , 40404 5515 1873 284 284 CD 40404 5515 1874 Hudson Hudson NNP 40404 5515 1875 Bay Bay NNP 40404 5515 1876 , , , 40404 5515 1877 90 90 CD 40404 5515 1878 , , , 40404 5515 1879 170 170 CD 40404 5515 1880 Hudson Hudson NNP 40404 5515 1881 River River NNP 40404 5515 1882 , , , 40404 5515 1883 197 197 CD 40404 5515 1884 , , , 40404 5515 1885 417 417 CD 40404 5515 1886 Hudson Hudson NNP 40404 5515 1887 series series NN 40404 5515 1888 , , , 40404 5515 1889 327 327 CD 40404 5515 1890 , , , 40404 5515 1891 329 329 CD 40404 5515 1892 Humus Humus NNP 40404 5515 1893 acids acid NNS 40404 5515 1894 , , , 40404 5515 1895 10 10 CD 40404 5515 1896 Humus Humus NNP 40404 5515 1897 layer layer NN 40404 5515 1898 , , , 40404 5515 1899 19 19 CD 40404 5515 1900 Huronian huronian JJ 40404 5515 1901 systems system NNS 40404 5515 1902 , , , 40404 5515 1903 308 308 CD 40404 5515 1904 Hwang Hwang NNP 40404 5515 1905 - - HYPH 40404 5515 1906 ho ho NNP 40404 5515 1907 River River NNP 40404 5515 1908 , , , 40404 5515 1909 151 151 CD 40404 5515 1910 Hydrosphere Hydrosphere NNP 40404 5515 1911 , , , 40404 5515 1912 22 22 CD 40404 5515 1913 Hydrozoa Hydrozoa NNP 40404 5515 1914 , , , 40404 5515 1915 320 320 CD 40404 5515 1916 Icebergs Icebergs NNPS 40404 5515 1917 , , , 40404 5515 1918 116 116 CD 40404 5515 1919 , , , 40404 5515 1920 148 148 CD 40404 5515 1921 Iceland Iceland NNP 40404 5515 1922 , , , 40404 5515 1923 242 242 CD 40404 5515 1924 , , , 40404 5515 1925 258 258 CD 40404 5515 1926 Ichthyosaurus Ichthyosaurus NNP 40404 5515 1927 , , , 40404 5515 1928 389 389 CD 40404 5515 1929 Idaho Idaho NNP 40404 5515 1930 , , , 40404 5515 1931 34 34 CD 40404 5515 1932 , , , 40404 5515 1933 400 400 CD 40404 5515 1934 Igneous igneous JJ 40404 5515 1935 rocks rock NNS 40404 5515 1936 , , , 40404 5515 1937 9 9 CD 40404 5515 1938 , , , 40404 5515 1939 249 249 CD 40404 5515 1940 , , , 40404 5515 1941 250 250 CD 40404 5515 1942 , , , 40404 5515 1943 251 251 CD 40404 5515 1944 , , , 40404 5515 1945 273 273 CD 40404 5515 1946 Illinoian illinoian JJ 40404 5515 1947 formation formation NN 40404 5515 1948 , , , 40404 5515 1949 429 429 CD 40404 5515 1950 Illinois Illinois NNP 40404 5515 1951 , , , 40404 5515 1952 54 54 CD 40404 5515 1953 , , , 40404 5515 1954 146 146 CD 40404 5515 1955 , , , 40404 5515 1956 356 356 CD 40404 5515 1957 , , , 40404 5515 1958 374 374 CD 40404 5515 1959 India India NNP 40404 5515 1960 , , , 40404 5515 1961 28 28 CD 40404 5515 1962 , , , 40404 5515 1963 102 102 CD 40404 5515 1964 , , , 40404 5515 1965 147 147 CD 40404 5515 1966 , , , 40404 5515 1967 235 235 CD 40404 5515 1968 , , , 40404 5515 1969 357 357 CD 40404 5515 1970 , , , 40404 5515 1971 402 402 CD 40404 5515 1972 Indian Indian NNP 40404 5515 1973 Territory Territory NNP 40404 5515 1974 , , , 40404 5515 1975 356 356 CD 40404 5515 1976 Indiana Indiana NNP 40404 5515 1977 , , , 40404 5515 1978 48 48 CD 40404 5515 1979 , , , 40404 5515 1980 104 104 CD 40404 5515 1981 Indo Indo NNP 40404 5515 1982 - - HYPH 40404 5515 1983 Gangetic Gangetic NNP 40404 5515 1984 plain plain NN 40404 5515 1985 , , , 40404 5515 1986 101 101 CD 40404 5515 1987 Indus Indus NNP 40404 5515 1988 River River NNP 40404 5515 1989 , , , 40404 5515 1990 101 101 CD 40404 5515 1991 , , , 40404 5515 1992 110 110 CD 40404 5515 1993 Insects insect NNS 40404 5515 1994 , , , 40404 5515 1995 333 333 CD 40404 5515 1996 , , , 40404 5515 1997 364 364 CD 40404 5515 1998 , , , 40404 5515 1999 380 380 CD 40404 5515 2000 Interior Interior NNP 40404 5515 2001 of of IN 40404 5515 2002 earth earth NN 40404 5515 2003 , , , 40404 5515 2004 276 276 CD 40404 5515 2005 Internal internal JJ 40404 5515 2006 geological geological JJ 40404 5515 2007 agencies agency NNS 40404 5515 2008 , , , 40404 5515 2009 195 195 CD 40404 5515 2010 Intrusive intrusive JJ 40404 5515 2011 masses masse NNS 40404 5515 2012 , , , 40404 5515 2013 270 270 CD 40404 5515 2014 Intrusive intrusive JJ 40404 5515 2015 rocks rock NNS 40404 5515 2016 , , , 40404 5515 2017 273 273 CD 40404 5515 2018 Intrusive intrusive JJ 40404 5515 2019 sheets sheet NNS 40404 5515 2020 , , , 40404 5515 2021 268 268 CD 40404 5515 2022 Inverness inverness JJ 40404 5515 2023 earthquake earthquake NN 40404 5515 2024 , , , 40404 5515 2025 236 236 CD 40404 5515 2026 Iowa Iowa NNP 40404 5515 2027 , , , 40404 5515 2028 29 29 CD 40404 5515 2029 , , , 40404 5515 2030 69 69 CD 40404 5515 2031 , , , 40404 5515 2032 73 73 CD 40404 5515 2033 , , , 40404 5515 2034 80 80 CD 40404 5515 2035 , , , 40404 5515 2036 86 86 CD 40404 5515 2037 , , , 40404 5515 2038 336 336 CD 40404 5515 2039 , , , 40404 5515 2040 356 356 CD 40404 5515 2041 , , , 40404 5515 2042 374 374 CD 40404 5515 2043 , , , 40404 5515 2044 431 431 CD 40404 5515 2045 , , , 40404 5515 2046 433 433 CD 40404 5515 2047 , , , 40404 5515 2048 439 439 CD 40404 5515 2049 , , , 40404 5515 2050 442 442 CD 40404 5515 2051 Iowan Iowan NNP 40404 5515 2052 formation formation NN 40404 5515 2053 , , , 40404 5515 2054 429 429 CD 40404 5515 2055 Iron Iron NNP 40404 5515 2056 ores ore NNS 40404 5515 2057 , , , 40404 5515 2058 13 13 CD 40404 5515 2059 , , , 40404 5515 2060 53 53 CD 40404 5515 2061 , , , 40404 5515 2062 279 279 CD 40404 5515 2063 , , , 40404 5515 2064 310 310 CD 40404 5515 2065 Islands Islands NNPS 40404 5515 2066 , , , 40404 5515 2067 coral coral NN 40404 5515 2068 , , , 40404 5515 2069 188 188 CD 40404 5515 2070 wave wave NN 40404 5515 2071 cut cut VBN 40404 5515 2072 , , , 40404 5515 2073 159 159 CD 40404 5515 2074 , , , 40404 5515 2075 161 161 CD 40404 5515 2076 Japan Japan NNP 40404 5515 2077 , , , 40404 5515 2078 223 223 CD 40404 5515 2079 , , , 40404 5515 2080 224 224 CD 40404 5515 2081 , , , 40404 5515 2082 237 237 CD 40404 5515 2083 Joints joint NNS 40404 5515 2084 , , , 40404 5515 2085 5 5 CD 40404 5515 2086 , , , 40404 5515 2087 31 31 CD 40404 5515 2088 , , , 40404 5515 2089 216 216 CD 40404 5515 2090 Jordan Jordan NNP 40404 5515 2091 valley valley NN 40404 5515 2092 , , , 40404 5515 2093 279 279 CD 40404 5515 2094 Jura Jura NNP 40404 5515 2095 Mountains Mountains NNP 40404 5515 2096 , , , 40404 5515 2097 141 141 CD 40404 5515 2098 , , , 40404 5515 2099 212 212 CD 40404 5515 2100 Jurassic Jurassic NNP 40404 5515 2101 period period NN 40404 5515 2102 , , , 40404 5515 2103 369 369 CD 40404 5515 2104 Kame Kame NNP 40404 5515 2105 terraces terrace NNS 40404 5515 2106 , , , 40404 5515 2107 424 424 CD 40404 5515 2108 Kames Kames NNPS 40404 5515 2109 , , , 40404 5515 2110 424 424 CD 40404 5515 2111 Kansan Kansan NNP 40404 5515 2112 formation formation NN 40404 5515 2113 , , , 40404 5515 2114 429 429 CD 40404 5515 2115 Kansas Kansas NNP 40404 5515 2116 , , , 40404 5515 2117 41 41 CD 40404 5515 2118 , , , 40404 5515 2119 50 50 CD 40404 5515 2120 , , , 40404 5515 2121 100 100 CD 40404 5515 2122 , , , 40404 5515 2123 336 336 CD 40404 5515 2124 , , , 40404 5515 2125 357 357 CD 40404 5515 2126 , , , 40404 5515 2127 373 373 CD 40404 5515 2128 , , , 40404 5515 2129 374 374 CD 40404 5515 2130 , , , 40404 5515 2131 429 429 CD 40404 5515 2132 Kaolin Kaolin NNP 40404 5515 2133 , , , 40404 5515 2134 12 12 CD 40404 5515 2135 Karst Karst NNP 40404 5515 2136 , , , 40404 5515 2137 47 47 CD 40404 5515 2138 Katahdin Katahdin NNP 40404 5515 2139 , , , 40404 5515 2140 Mount Mount NNP 40404 5515 2141 , , , 40404 5515 2142 420 420 CD 40404 5515 2143 Keewatin Keewatin NNP 40404 5515 2144 ice ice NN 40404 5515 2145 field field NN 40404 5515 2146 , , , 40404 5515 2147 425 425 CD 40404 5515 2148 Kentucky Kentucky NNP 40404 5515 2149 , , , 40404 5515 2150 45 45 CD 40404 5515 2151 , , , 40404 5515 2152 46 46 CD 40404 5515 2153 , , , 40404 5515 2154 343 343 CD 40404 5515 2155 , , , 40404 5515 2156 442 442 CD 40404 5515 2157 Keweenawan Keweenawan NNP 40404 5515 2158 system system NN 40404 5515 2159 , , , 40404 5515 2160 308 308 CD 40404 5515 2161 , , , 40404 5515 2162 310 310 CD 40404 5515 2163 Kilauea Kilauea NNP 40404 5515 2164 , , , 40404 5515 2165 239 239 CD 40404 5515 2166 Kings king NNS 40404 5515 2167 River River NNP 40404 5515 2168 Canyon Canyon NNP 40404 5515 2169 , , , 40404 5515 2170 403 403 CD 40404 5515 2171 Krakatoa Krakatoa NNP 40404 5515 2172 , , , 40404 5515 2173 245 245 CD 40404 5515 2174 Labrador Labrador NNP 40404 5515 2175 , , , 40404 5515 2176 198 198 CD 40404 5515 2177 Labrador Labrador NNP 40404 5515 2178 ice ice NN 40404 5515 2179 field field NN 40404 5515 2180 , , , 40404 5515 2181 426 426 CD 40404 5515 2182 Laccolith Laccolith NNP 40404 5515 2183 , , , 40404 5515 2184 271 271 CD 40404 5515 2185 Lagoon Lagoon NNP 40404 5515 2186 , , , 40404 5515 2187 165 165 CD 40404 5515 2188 , , , 40404 5515 2189 167 167 CD 40404 5515 2190 Lahontan Lahontan NNP 40404 5515 2191 , , , 40404 5515 2192 Lake Lake NNP 40404 5515 2193 , , , 40404 5515 2194 107 107 CD 40404 5515 2195 , , , 40404 5515 2196 438 438 CD 40404 5515 2197 Lake Lake NNP 40404 5515 2198 Chelan Chelan NNP 40404 5515 2199 , , , 40404 5515 2200 141 141 CD 40404 5515 2201 Lake Lake NNP 40404 5515 2202 dwellings dwelling NNS 40404 5515 2203 , , , 40404 5515 2204 448 448 CD 40404 5515 2205 Lake Lake NNP 40404 5515 2206 Geneva Geneva NNP 40404 5515 2207 , , , 40404 5515 2208 71 71 CD 40404 5515 2209 Lake Lake NNP 40404 5515 2210 Superior Superior NNP 40404 5515 2211 region region NN 40404 5515 2212 , , , 40404 5515 2213 284 284 CD 40404 5515 2214 , , , 40404 5515 2215 308 308 CD 40404 5515 2216 , , , 40404 5515 2217 310 310 CD 40404 5515 2218 Lakes Lakes NNPS 40404 5515 2219 , , , 40404 5515 2220 70 70 CD 40404 5515 2221 , , , 40404 5515 2222 222 222 CD 40404 5515 2223 , , , 40404 5515 2224 432 432 CD 40404 5515 2225 basins basin NNS 40404 5515 2226 , , , 40404 5515 2227 97 97 CD 40404 5515 2228 , , , 40404 5515 2229 110 110 CD 40404 5515 2230 , , , 40404 5515 2231 127 127 CD 40404 5515 2232 , , , 40404 5515 2233 139 139 CD 40404 5515 2234 , , , 40404 5515 2235 141 141 CD 40404 5515 2236 , , , 40404 5515 2237 164 164 CD 40404 5515 2238 , , , 40404 5515 2239 165 165 CD 40404 5515 2240 , , , 40404 5515 2241 167 167 CD 40404 5515 2242 , , , 40404 5515 2243 191 191 CD 40404 5515 2244 , , , 40404 5515 2245 221 221 CD 40404 5515 2246 , , , 40404 5515 2247 222 222 CD 40404 5515 2248 , , , 40404 5515 2249 235 235 CD 40404 5515 2250 , , , 40404 5515 2251 259 259 CD 40404 5515 2252 , , , 40404 5515 2253 423 423 CD 40404 5515 2254 , , , 40404 5515 2255 432 432 CD 40404 5515 2256 , , , 40404 5515 2257 435 435 CD 40404 5515 2258 deposits deposit NNS 40404 5515 2259 , , , 40404 5515 2260 104 104 CD 40404 5515 2261 glacial glacial JJ 40404 5515 2262 , , , 40404 5515 2263 127 127 CD 40404 5515 2264 , , , 40404 5515 2265 139 139 CD 40404 5515 2266 , , , 40404 5515 2267 141 141 CD 40404 5515 2268 , , , 40404 5515 2269 423 423 CD 40404 5515 2270 , , , 40404 5515 2271 432 432 CD 40404 5515 2272 , , , 40404 5515 2273 435 435 CD 40404 5515 2274 Pleistocene Pleistocene NNP 40404 5515 2275 , , , 40404 5515 2276 435 435 CD 40404 5515 2277 salt salt NN 40404 5515 2278 , , , 40404 5515 2279 106 106 CD 40404 5515 2280 Laminæ Laminæ NNP 40404 5515 2281 , , , 40404 5515 2282 5 5 CD 40404 5515 2283 Landslides Landslides NNPS 40404 5515 2284 , , , 40404 5515 2285 26 26 CD 40404 5515 2286 , , , 40404 5515 2287 234 234 CD 40404 5515 2288 Lapilli Lapilli NNP 40404 5515 2289 , , , 40404 5515 2290 255 255 CD 40404 5515 2291 Laramie Laramie NNP 40404 5515 2292 series series NN 40404 5515 2293 , , , 40404 5515 2294 375 375 CD 40404 5515 2295 Laurentian laurentian JJ 40404 5515 2296 peneplain peneplain NN 40404 5515 2297 , , , 40404 5515 2298 84 84 CD 40404 5515 2299 , , , 40404 5515 2300 308 308 CD 40404 5515 2301 , , , 40404 5515 2302 432 432 CD 40404 5515 2303 Lava Lava NNP 40404 5515 2304 , , , 40404 5515 2305 238 238 CD 40404 5515 2306 , , , 40404 5515 2307 241 241 CD 40404 5515 2308 Lava Lava NNP 40404 5515 2309 domes dome VBZ 40404 5515 2310 , , , 40404 5515 2311 243 243 CD 40404 5515 2312 , , , 40404 5515 2313 400 400 CD 40404 5515 2314 Lepidodendron Lepidodendron NNP 40404 5515 2315 , , , 40404 5515 2316 362 362 CD 40404 5515 2317 , , , 40404 5515 2318 367 367 CD 40404 5515 2319 Lichens Lichens NNP 40404 5515 2320 , , , 40404 5515 2321 16 16 CD 40404 5515 2322 Lignite Lignite NNP 40404 5515 2323 , , , 40404 5515 2324 271 271 CD 40404 5515 2325 Limestone Limestone NNP 40404 5515 2326 , , , 40404 5515 2327 7 7 CD 40404 5515 2328 , , , 40404 5515 2329 177 177 CD 40404 5515 2330 , , , 40404 5515 2331 178 178 CD 40404 5515 2332 , , , 40404 5515 2333 190 190 CD 40404 5515 2334 Limonite Limonite NNP 40404 5515 2335 , , , 40404 5515 2336 13 13 CD 40404 5515 2337 Lingulella Lingulella NNP 40404 5515 2338 , , , 40404 5515 2339 324 324 CD 40404 5515 2340 Lithosphere Lithosphere NNP 40404 5515 2341 , , , 40404 5515 2342 21 21 CD 40404 5515 2343 Lizards Lizards NNPS 40404 5515 2344 , , , 40404 5515 2345 384 384 CD 40404 5515 2346 Llamas Llamas NNPS 40404 5515 2347 , , , 40404 5515 2348 412 412 CD 40404 5515 2349 Loess Loess NNP 40404 5515 2350 , , , 40404 5515 2351 150 150 CD 40404 5515 2352 , , , 40404 5515 2353 433 433 CD 40404 5515 2354 Long Long NNP 40404 5515 2355 Island Island NNP 40404 5515 2356 , , , 40404 5515 2357 373 373 CD 40404 5515 2358 Louisiana Louisiana NNP 40404 5515 2359 , , , 40404 5515 2360 336 336 CD 40404 5515 2361 , , , 40404 5515 2362 396 396 CD 40404 5515 2363 Lower low JJR 40404 5515 2364 Silurian silurian JJ 40404 5515 2365 period period NN 40404 5515 2366 , , , 40404 5515 2367 327 327 CD 40404 5515 2368 Luray Luray NNP 40404 5515 2369 Cavern Cavern NNP 40404 5515 2370 , , , 40404 5515 2371 48 48 CD 40404 5515 2372 Lycopods Lycopods NNPS 40404 5515 2373 , , , 40404 5515 2374 362 362 CD 40404 5515 2375 Magnetite Magnetite NNP 40404 5515 2376 , , , 40404 5515 2377 279 279 CD 40404 5515 2378 , , , 40404 5515 2379 310 310 CD 40404 5515 2380 Maine Maine NNP 40404 5515 2381 , , , 40404 5515 2382 169 169 CD 40404 5515 2383 , , , 40404 5515 2384 420 420 CD 40404 5515 2385 Malaspina Malaspina NNP 40404 5515 2386 glacier glacier NN 40404 5515 2387 , , , 40404 5515 2388 181 181 CD 40404 5515 2389 Maldive Maldive NNP 40404 5515 2390 Archipelago Archipelago NNP 40404 5515 2391 , , , 40404 5515 2392 198 198 CD 40404 5515 2393 Mammals Mammals NNPS 40404 5515 2394 , , , 40404 5515 2395 393 393 CD 40404 5515 2396 , , , 40404 5515 2397 406 406 CD 40404 5515 2398 , , , 40404 5515 2399 440 440 CD 40404 5515 2400 Mammoth Mammoth NNP 40404 5515 2401 , , , 40404 5515 2402 442 442 CD 40404 5515 2403 Mammoth Mammoth NNP 40404 5515 2404 Cave Cave NNP 40404 5515 2405 , , , 40404 5515 2406 46 46 CD 40404 5515 2407 Mammoth Mammoth NNP 40404 5515 2408 Hot Hot NNP 40404 5515 2409 Springs Springs NNPS 40404 5515 2410 , , , 40404 5515 2411 52 52 CD 40404 5515 2412 Man man NN 40404 5515 2413 , , , 40404 5515 2414 414 414 CD 40404 5515 2415 , , , 40404 5515 2416 443 443 CD 40404 5515 2417 Mantle Mantle NNP 40404 5515 2418 of of IN 40404 5515 2419 waste waste NN 40404 5515 2420 , , , 40404 5515 2421 17 17 CD 40404 5515 2422 Marble Marble NNP 40404 5515 2423 , , , 40404 5515 2424 284 284 CD 40404 5515 2425 , , , 40404 5515 2426 329 329 CD 40404 5515 2427 Marengo Marengo NNP 40404 5515 2428 Cavern Cavern NNP 40404 5515 2429 , , , 40404 5515 2430 48 48 CD 40404 5515 2431 Marl Marl NNP 40404 5515 2432 , , , 40404 5515 2433 104 104 CD 40404 5515 2434 Marsupials marsupial NNS 40404 5515 2435 , , , 40404 5515 2436 393 393 CD 40404 5515 2437 , , , 40404 5515 2438 406 406 CD 40404 5515 2439 Martha Martha NNP 40404 5515 2440 's 's POS 40404 5515 2441 Vineyard Vineyard NNP 40404 5515 2442 , , , 40404 5515 2443 161 161 CD 40404 5515 2444 , , , 40404 5515 2445 373 373 CD 40404 5515 2446 , , , 40404 5515 2447 395 395 CD 40404 5515 2448 Maryland Maryland NNP 40404 5515 2449 , , , 40404 5515 2450 56 56 CD 40404 5515 2451 , , , 40404 5515 2452 270 270 CD 40404 5515 2453 Massachusetts Massachusetts NNP 40404 5515 2454 , , , 40404 5515 2455 106 106 CD 40404 5515 2456 , , , 40404 5515 2457 162 162 CD 40404 5515 2458 , , , 40404 5515 2459 257 257 CD 40404 5515 2460 , , , 40404 5515 2461 309 309 CD 40404 5515 2462 , , , 40404 5515 2463 408 408 CD 40404 5515 2464 , , , 40404 5515 2465 417 417 CD 40404 5515 2466 , , , 40404 5515 2467 429 429 CD 40404 5515 2468 Mastodon Mastodon NNP 40404 5515 2469 , , , 40404 5515 2470 410 410 CD 40404 5515 2471 , , , 40404 5515 2472 441 441 CD 40404 5515 2473 , , , 40404 5515 2474 442 442 CD 40404 5515 2475 Matterhorn Matterhorn NNP 40404 5515 2476 , , , 40404 5515 2477 34 34 CD 40404 5515 2478 Maturity maturity NN 40404 5515 2479 of of IN 40404 5515 2480 land land NN 40404 5515 2481 forms form NNS 40404 5515 2482 , , , 40404 5515 2483 80 80 CD 40404 5515 2484 Mauna Mauna NNP 40404 5515 2485 Loa Loa NNP 40404 5515 2486 , , , 40404 5515 2487 239 239 CD 40404 5515 2488 Meanders Meanders NNPS 40404 5515 2489 , , , 40404 5515 2490 96 96 CD 40404 5515 2491 Medina Medina NNP 40404 5515 2492 series series NN 40404 5515 2493 , , , 40404 5515 2494 335 335 CD 40404 5515 2495 , , , 40404 5515 2496 403 403 CD 40404 5515 2497 Megatherium Megatherium NNP 40404 5515 2498 , , , 40404 5515 2499 441 441 CD 40404 5515 2500 Mendota Mendota NNP 40404 5515 2501 , , , 40404 5515 2502 Lake Lake NNP 40404 5515 2503 , , , 40404 5515 2504 71 71 CD 40404 5515 2505 Mesa Mesa NNP 40404 5515 2506 , , , 40404 5515 2507 31 31 CD 40404 5515 2508 , , , 40404 5515 2509 32 32 CD 40404 5515 2510 , , , 40404 5515 2511 153 153 CD 40404 5515 2512 Mesozoic mesozoic JJ 40404 5515 2513 era era NN 40404 5515 2514 , , , 40404 5515 2515 369 369 CD 40404 5515 2516 Mesozoic Mesozoic NNP 40404 5515 2517 peneplain peneplain NN 40404 5515 2518 , , , 40404 5515 2519 376 376 CD 40404 5515 2520 , , , 40404 5515 2521 403 403 CD 40404 5515 2522 Metamorphism metamorphism NN 40404 5515 2523 , , , 40404 5515 2524 281 281 CD 40404 5515 2525 Mexico Mexico NNP 40404 5515 2526 , , , 40404 5515 2527 373 373 CD 40404 5515 2528 , , , 40404 5515 2529 375 375 CD 40404 5515 2530 Mica Mica NNP 40404 5515 2531 , , , 40404 5515 2532 9 9 CD 40404 5515 2533 Mica Mica NNP 40404 5515 2534 schist schist NN 40404 5515 2535 , , , 40404 5515 2536 284 284 CD 40404 5515 2537 Michigan Michigan NNP 40404 5515 2538 , , , 40404 5515 2539 104 104 CD 40404 5515 2540 , , , 40404 5515 2541 356 356 CD 40404 5515 2542 , , , 40404 5515 2543 443 443 CD 40404 5515 2544 Michigan Michigan NNP 40404 5515 2545 , , , 40404 5515 2546 Lake Lake NNP 40404 5515 2547 , , , 40404 5515 2548 149 149 CD 40404 5515 2549 , , , 40404 5515 2550 198 198 CD 40404 5515 2551 Mineral Mineral NNP 40404 5515 2552 veins vein NNS 40404 5515 2553 , , , 40404 5515 2554 49 49 CD 40404 5515 2555 , , , 40404 5515 2556 286 286 CD 40404 5515 2557 Minnesota Minnesota NNP 40404 5515 2558 , , , 40404 5515 2559 97 97 CD 40404 5515 2560 , , , 40404 5515 2561 426 426 CD 40404 5515 2562 Miocene Miocene NNP 40404 5515 2563 series series NN 40404 5515 2564 , , , 40404 5515 2565 395 395 CD 40404 5515 2566 Mississippi Mississippi NNP 40404 5515 2567 , , , 40404 5515 2568 337 337 CD 40404 5515 2569 Mississippi Mississippi NNP 40404 5515 2570 embayment embayment NN 40404 5515 2571 , , , 40404 5515 2572 373 373 CD 40404 5515 2573 , , , 40404 5515 2574 374 374 CD 40404 5515 2575 , , , 40404 5515 2576 395 395 CD 40404 5515 2577 Mississippi Mississippi NNP 40404 5515 2578 River River NNP 40404 5515 2579 , , , 40404 5515 2580 56 56 CD 40404 5515 2581 , , , 40404 5515 2582 57 57 CD 40404 5515 2583 , , , 40404 5515 2584 82 82 CD 40404 5515 2585 , , , 40404 5515 2586 94 94 CD 40404 5515 2587 , , , 40404 5515 2588 96 96 CD 40404 5515 2589 , , , 40404 5515 2590 109 109 CD 40404 5515 2591 Mississippian mississippian JJ 40404 5515 2592 series series NN 40404 5515 2593 , , , 40404 5515 2594 350 350 CD 40404 5515 2595 Missouri Missouri NNP 40404 5515 2596 , , , 40404 5515 2597 18 18 CD 40404 5515 2598 , , , 40404 5515 2599 236 236 CD 40404 5515 2600 Missouri Missouri NNP 40404 5515 2601 River River NNP 40404 5515 2602 , , , 40404 5515 2603 55 55 CD 40404 5515 2604 , , , 40404 5515 2605 97 97 CD 40404 5515 2606 Mobile Mobile NNP 40404 5515 2607 Bay Bay NNP 40404 5515 2608 , , , 40404 5515 2609 197 197 CD 40404 5515 2610 Mohawk Mohawk NNP 40404 5515 2611 valley valley NN 40404 5515 2612 , , , 40404 5515 2613 436 436 CD 40404 5515 2614 , , , 40404 5515 2615 437 437 CD 40404 5515 2616 Molluscous molluscous JJ 40404 5515 2617 shell shell NN 40404 5515 2618 deposits deposit NNS 40404 5515 2619 , , , 40404 5515 2620 177 177 CD 40404 5515 2621 Mollusks Mollusks NNPS 40404 5515 2622 , , , 40404 5515 2623 324 324 CD 40404 5515 2624 Monadnock,83 monadnock,83 NN 40404 5515 2625 Monkeys Monkeys NNP 40404 5515 2626 , , , 40404 5515 2627 414 414 CD 40404 5515 2628 Monoclinal monoclinal JJ 40404 5515 2629 fold fold JJ 40404 5515 2630 , , , 40404 5515 2631 204 204 CD 40404 5515 2632 Monocotyls Monocotyls NNP 40404 5515 2633 , , , 40404 5515 2634 377 377 CD 40404 5515 2635 , , , 40404 5515 2636 404 404 CD 40404 5515 2637 Monotremes Monotremes NNP 40404 5515 2638 , , , 40404 5515 2639 393 393 CD 40404 5515 2640 , , , 40404 5515 2641 406 406 CD 40404 5515 2642 Montana Montana NNP 40404 5515 2643 , , , 40404 5515 2644 71 71 CD 40404 5515 2645 , , , 40404 5515 2646 309 309 CD 40404 5515 2647 , , , 40404 5515 2648 313 313 CD 40404 5515 2649 , , , 40404 5515 2650 373 373 CD 40404 5515 2651 Montreal Montreal NNP 40404 5515 2652 , , , 40404 5515 2653 268 268 CD 40404 5515 2654 , , , 40404 5515 2655 437 437 CD 40404 5515 2656 Monuments Monuments NNPS 40404 5515 2657 , , , 40404 5515 2658 33 33 CD 40404 5515 2659 Moraines moraine NNS 40404 5515 2660 , , , 40404 5515 2661 124 124 CD 40404 5515 2662 Mosasaurs Mosasaurs NNP 40404 5515 2663 , , , 40404 5515 2664 390 390 CD 40404 5515 2665 Mountain mountain NN 40404 5515 2666 sheep sheep NNS 40404 5515 2667 , , , 40404 5515 2668 413 413 CD 40404 5515 2669 Mountains mountain NNS 40404 5515 2670 , , , 40404 5515 2671 age age NN 40404 5515 2672 of of IN 40404 5515 2673 , , , 40404 5515 2674 229 229 CD 40404 5515 2675 life life NN 40404 5515 2676 history history NN 40404 5515 2677 of of IN 40404 5515 2678 , , , 40404 5515 2679 212 212 CD 40404 5515 2680 , , , 40404 5515 2681 215 215 CD 40404 5515 2682 origin origin NN 40404 5515 2683 of of IN 40404 5515 2684 , , , 40404 5515 2685 90 90 CD 40404 5515 2686 , , , 40404 5515 2687 210 210 CD 40404 5515 2688 , , , 40404 5515 2689 222 222 CD 40404 5515 2690 sculpture sculpture NN 40404 5515 2691 of of IN 40404 5515 2692 , , , 40404 5515 2693 33 33 CD 40404 5515 2694 , , , 40404 5515 2695 137 137 CD 40404 5515 2696 Movements movement NNS 40404 5515 2697 of of IN 40404 5515 2698 crust crust NN 40404 5515 2699 , , , 40404 5515 2700 195 195 CD 40404 5515 2701 Muir Muir NNP 40404 5515 2702 glacier glacier NN 40404 5515 2703 , , , 40404 5515 2704 122 122 CD 40404 5515 2705 , , , 40404 5515 2706 129 129 CD 40404 5515 2707 Nantucket nantucket NN 40404 5515 2708 , , , 40404 5515 2709 373 373 CD 40404 5515 2710 Naples Naples NNP 40404 5515 2711 , , , 40404 5515 2712 201 201 CD 40404 5515 2713 Narragansett Narragansett NNP 40404 5515 2714 Bay Bay NNP 40404 5515 2715 , , , 40404 5515 2716 197 197 CD 40404 5515 2717 Natural natural JJ 40404 5515 2718 bridges bridge NNS 40404 5515 2719 , , , 40404 5515 2720 46 46 CD 40404 5515 2721 Natural natural JJ 40404 5515 2722 gas gas NN 40404 5515 2723 , , , 40404 5515 2724 330 330 CD 40404 5515 2725 Natural natural JJ 40404 5515 2726 levees levee NNS 40404 5515 2727 , , , 40404 5515 2728 93 93 CD 40404 5515 2729 Nautilus nautilus NN 40404 5515 2730 , , , 40404 5515 2731 334 334 CD 40404 5515 2732 Nebraska Nebraska NNP 40404 5515 2733 , , , 40404 5515 2734 50 50 CD 40404 5515 2735 , , , 40404 5515 2736 82 82 CD 40404 5515 2737 , , , 40404 5515 2738 100 100 CD 40404 5515 2739 , , , 40404 5515 2740 255 255 CD 40404 5515 2741 , , , 40404 5515 2742 356 356 CD 40404 5515 2743 Nebular Nebular NNP 40404 5515 2744 hypothesis hypothesis NN 40404 5515 2745 , , , 40404 5515 2746 304 304 CD 40404 5515 2747 Neolithic neolithic JJ 40404 5515 2748 man man NN 40404 5515 2749 , , , 40404 5515 2750 443 443 CD 40404 5515 2751 , , , 40404 5515 2752 448 448 CD 40404 5515 2753 Nevada Nevada NNP 40404 5515 2754 , , , 40404 5515 2755 104 104 CD 40404 5515 2756 , , , 40404 5515 2757 107 107 CD 40404 5515 2758 , , , 40404 5515 2759 222 222 CD 40404 5515 2760 , , , 40404 5515 2761 288 288 CD 40404 5515 2762 , , , 40404 5515 2763 289 289 CD 40404 5515 2764 , , , 40404 5515 2765 360 360 CD 40404 5515 2766 , , , 40404 5515 2767 400 400 CD 40404 5515 2768 Névé Névé NNP 40404 5515 2769 , , , 40404 5515 2770 120 120 CD 40404 5515 2771 New New NNP 40404 5515 2772 Brunswick Brunswick NNP 40404 5515 2773 , , , 40404 5515 2774 198 198 CD 40404 5515 2775 New New NNP 40404 5515 2776 England England NNP 40404 5515 2777 , , , 40404 5515 2778 88 88 CD 40404 5515 2779 , , , 40404 5515 2780 373 373 CD 40404 5515 2781 , , , 40404 5515 2782 376 376 CD 40404 5515 2783 , , , 40404 5515 2784 378 378 CD 40404 5515 2785 , , , 40404 5515 2786 395 395 CD 40404 5515 2787 , , , 40404 5515 2788 403 403 CD 40404 5515 2789 , , , 40404 5515 2790 429 429 CD 40404 5515 2791 , , , 40404 5515 2792 432 432 CD 40404 5515 2793 , , , 40404 5515 2794 437 437 CD 40404 5515 2795 Newfoundland Newfoundland NNP 40404 5515 2796 , , , 40404 5515 2797 198 198 CD 40404 5515 2798 New New NNP 40404 5515 2799 Jersey Jersey NNP 40404 5515 2800 , , , 40404 5515 2801 148 148 CD 40404 5515 2802 , , , 40404 5515 2803 166 166 CD 40404 5515 2804 , , , 40404 5515 2805 168 168 CD 40404 5515 2806 , , , 40404 5515 2807 176 176 CD 40404 5515 2808 , , , 40404 5515 2809 196 196 CD 40404 5515 2810 , , , 40404 5515 2811 268 268 CD 40404 5515 2812 , , , 40404 5515 2813 269 269 CD 40404 5515 2814 , , , 40404 5515 2815 309 309 CD 40404 5515 2816 , , , 40404 5515 2817 310 310 CD 40404 5515 2818 , , , 40404 5515 2819 373 373 CD 40404 5515 2820 , , , 40404 5515 2821 437 437 CD 40404 5515 2822 New New NNP 40404 5515 2823 Madrid Madrid NNP 40404 5515 2824 earthquake earthquake NN 40404 5515 2825 , , , 40404 5515 2826 236 236 CD 40404 5515 2827 New New NNP 40404 5515 2828 Mexico Mexico NNP 40404 5515 2829 , , , 40404 5515 2830 31 31 CD 40404 5515 2831 , , , 40404 5515 2832 371 371 CD 40404 5515 2833 , , , 40404 5515 2834 399 399 CD 40404 5515 2835 New New NNP 40404 5515 2836 York York NNP 40404 5515 2837 , , , 40404 5515 2838 60 60 CD 40404 5515 2839 , , , 40404 5515 2840 90 90 CD 40404 5515 2841 , , , 40404 5515 2842 309 309 CD 40404 5515 2843 , , , 40404 5515 2844 327 327 CD 40404 5515 2845 , , , 40404 5515 2846 329 329 CD 40404 5515 2847 , , , 40404 5515 2848 335 335 CD 40404 5515 2849 , , , 40404 5515 2850 336 336 CD 40404 5515 2851 , , , 40404 5515 2852 360 360 CD 40404 5515 2853 , , , 40404 5515 2854 421 421 CD 40404 5515 2855 , , , 40404 5515 2856 422 422 CD 40404 5515 2857 , , , 40404 5515 2858 423 423 CD 40404 5515 2859 , , , 40404 5515 2860 424 424 CD 40404 5515 2861 , , , 40404 5515 2862 432 432 CD 40404 5515 2863 , , , 40404 5515 2864 448 448 CD 40404 5515 2865 Niagara Niagara NNP 40404 5515 2866 Falls Falls NNP 40404 5515 2867 , , , 40404 5515 2868 60 60 CD 40404 5515 2869 , , , 40404 5515 2870 199 199 CD 40404 5515 2871 Niagara Niagara NNP 40404 5515 2872 series series NN 40404 5515 2873 , , , 40404 5515 2874 335 335 CD 40404 5515 2875 Nile Nile NNP 40404 5515 2876 , , , 40404 5515 2877 93 93 CD 40404 5515 2878 , , , 40404 5515 2879 109 109 CD 40404 5515 2880 , , , 40404 5515 2881 197 197 CD 40404 5515 2882 Normal normal JJ 40404 5515 2883 fault fault NN 40404 5515 2884 , , , 40404 5515 2885 217 217 CD 40404 5515 2886 North North NNP 40404 5515 2887 Carolina Carolina NNP 40404 5515 2888 , , , 40404 5515 2889 106 106 CD 40404 5515 2890 North North NNP 40404 5515 2891 Dakota Dakota NNP 40404 5515 2892 , , , 40404 5515 2893 67 67 CD 40404 5515 2894 North North NNP 40404 5515 2895 Sea Sea NNP 40404 5515 2896 , , , 40404 5515 2897 170 170 CD 40404 5515 2898 Notochord Notochord NNP 40404 5515 2899 , , , 40404 5515 2900 347 347 CD 40404 5515 2901 Nova Nova NNP 40404 5515 2902 Scotia Scotia NNP 40404 5515 2903 , , , 40404 5515 2904 198 198 CD 40404 5515 2905 Nunatak Nunatak NNP 40404 5515 2906 , , , 40404 5515 2907 116 116 CD 40404 5515 2908 , , , 40404 5515 2909 132 132 CD 40404 5515 2910 Ohio Ohio NNP 40404 5515 2911 , , , 40404 5515 2912 82 82 CD 40404 5515 2913 , , , 40404 5515 2914 198 198 CD 40404 5515 2915 , , , 40404 5515 2916 329 329 CD 40404 5515 2917 , , , 40404 5515 2918 335 335 CD 40404 5515 2919 , , , 40404 5515 2920 441 441 CD 40404 5515 2921 Ohio Ohio NNP 40404 5515 2922 River River NNP 40404 5515 2923 , , , 40404 5515 2924 55 55 CD 40404 5515 2925 , , , 40404 5515 2926 82 82 CD 40404 5515 2927 Oil oil NN 40404 5515 2928 , , , 40404 5515 2929 330 330 CD 40404 5515 2930 Olenellus Olenellus NNP 40404 5515 2931 zone zone NN 40404 5515 2932 , , , 40404 5515 2933 328 328 CD 40404 5515 2934 Olivine Olivine NNP 40404 5515 2935 , , , 40404 5515 2936 274 274 CD 40404 5515 2937 Oolitic oolitic JJ 40404 5515 2938 limestone limestone NN 40404 5515 2939 , , , 40404 5515 2940 178 178 CD 40404 5515 2941 Ooze Ooze NNP 40404 5515 2942 , , , 40404 5515 2943 deep deep JJ 40404 5515 2944 - - HYPH 40404 5515 2945 sea sea NN 40404 5515 2946 , , , 40404 5515 2947 131 131 CD 40404 5515 2948 Ordovician ordovician JJ 40404 5515 2949 period period NN 40404 5515 2950 , , , 40404 5515 2951 316 316 CD 40404 5515 2952 , , , 40404 5515 2953 327 327 CD 40404 5515 2954 life life NN 40404 5515 2955 of of IN 40404 5515 2956 , , , 40404 5515 2957 331 331 CD 40404 5515 2958 Oregon Oregon NNP 40404 5515 2959 , , , 40404 5515 2960 222 222 CD 40404 5515 2961 , , , 40404 5515 2962 262 262 CD 40404 5515 2963 , , , 40404 5515 2964 400 400 CD 40404 5515 2965 Oreodon Oreodon NNP 40404 5515 2966 , , , 40404 5515 2967 412 412 CD 40404 5515 2968 Ores ore NNS 40404 5515 2969 , , , 40404 5515 2970 287 287 CD 40404 5515 2971 , , , 40404 5515 2972 290 290 CD 40404 5515 2973 Organisms organism NNS 40404 5515 2974 , , , 40404 5515 2975 work work NN 40404 5515 2976 of of IN 40404 5515 2977 , , , 40404 5515 2978 16 16 CD 40404 5515 2979 Oriskany Oriskany NNP 40404 5515 2980 series series NN 40404 5515 2981 , , , 40404 5515 2982 341 341 CD 40404 5515 2983 Ornithostoma Ornithostoma NNP 40404 5515 2984 , , , 40404 5515 2985 392 392 CD 40404 5515 2986 Orthoceras Orthoceras NNP 40404 5515 2987 , , , 40404 5515 2988 325 325 CD 40404 5515 2989 , , , 40404 5515 2990 367 367 CD 40404 5515 2991 , , , 40404 5515 2992 380 380 CD 40404 5515 2993 Oscillations Oscillations NNPS 40404 5515 2994 , , , 40404 5515 2995 196 196 CD 40404 5515 2996 a a DT 40404 5515 2997 cause cause NN 40404 5515 2998 of of IN 40404 5515 2999 , , , 40404 5515 3000 273 273 CD 40404 5515 3001 effect effect NN 40404 5515 3002 on on IN 40404 5515 3003 drainage drainage NN 40404 5515 3004 , , , 40404 5515 3005 85 85 CD 40404 5515 3006 Ostracoderms Ostracoderms NNPS 40404 5515 3007 , , , 40404 5515 3008 344 344 CD 40404 5515 3009 Ottawa Ottawa NNP 40404 5515 3010 River River NNP 40404 5515 3011 , , , 40404 5515 3012 90 90 CD 40404 5515 3013 Outcrop Outcrop NNP 40404 5515 3014 , , , 40404 5515 3015 2 2 CD 40404 5515 3016 Outliers Outliers NNPS 40404 5515 3017 , , , 40404 5515 3018 31 31 CD 40404 5515 3019 Outwash outwash JJ 40404 5515 3020 plains plain NNS 40404 5515 3021 , , , 40404 5515 3022 425 425 CD 40404 5515 3023 Oxidation Oxidation NNP 40404 5515 3024 , , , 40404 5515 3025 13 13 CD 40404 5515 3026 Oyster Oyster NNP 40404 5515 3027 , , , 40404 5515 3028 379 379 CD 40404 5515 3029 , , , 40404 5515 3030 380 380 CD 40404 5515 3031 Pahoehoe Pahoehoe NNP 40404 5515 3032 lava,241 lava,241 NNP 40404 5515 3033 Palæospondylus Palæospondylus NNP 40404 5515 3034 , , , 40404 5515 3035 344 344 CD 40404 5515 3036 Paleolithic paleolithic JJ 40404 5515 3037 man man NN 40404 5515 3038 , , , 40404 5515 3039 444 444 CD 40404 5515 3040 Paleozoic paleozoic JJ 40404 5515 3041 era era NN 40404 5515 3042 , , , 40404 5515 3043 315 315 CD 40404 5515 3044 Palisades Palisades NNPS 40404 5515 3045 of of IN 40404 5515 3046 Hudson Hudson NNP 40404 5515 3047 , , , 40404 5515 3048 268 268 CD 40404 5515 3049 Palms Palms NNPS 40404 5515 3050 , , , 40404 5515 3051 377 377 CD 40404 5515 3052 Pamir Pamir NNP 40404 5515 3053 , , , 40404 5515 3054 15 15 CD 40404 5515 3055 Peat Peat NNP 40404 5515 3056 , , , 40404 5515 3057 94 94 CD 40404 5515 3058 , , , 40404 5515 3059 104 104 CD 40404 5515 3060 Peccaries peccary NNS 40404 5515 3061 , , , 40404 5515 3062 412 412 CD 40404 5515 3063 Pelecypods pelecypod NNS 40404 5515 3064 , , , 40404 5515 3065 324 324 CD 40404 5515 3066 Pelée Pelée NNP 40404 5515 3067 , , , 40404 5515 3068 Mt. Mount NNP 40404 5515 3069 , , , 40404 5515 3070 246 246 CD 40404 5515 3071 Peneplain Peneplain NNP 40404 5515 3072 , , , 40404 5515 3073 83 83 CD 40404 5515 3074 dissected dissect VBD 40404 5515 3075 , , , 40404 5515 3076 86 86 CD 40404 5515 3077 Laurentian Laurentian NNP 40404 5515 3078 , , , 40404 5515 3079 89 89 CD 40404 5515 3080 , , , 40404 5515 3081 308 308 CD 40404 5515 3082 , , , 40404 5515 3083 402 402 CD 40404 5515 3084 Mesozoic Mesozoic NNP 40404 5515 3085 , , , 40404 5515 3086 376 376 CD 40404 5515 3087 , , , 40404 5515 3088 403 403 CD 40404 5515 3089 Pennsylvania Pennsylvania NNP 40404 5515 3090 , , , 40404 5515 3091 35 35 CD 40404 5515 3092 , , , 40404 5515 3093 211 211 CD 40404 5515 3094 , , , 40404 5515 3095 257 257 CD 40404 5515 3096 , , , 40404 5515 3097 357 357 CD 40404 5515 3098 , , , 40404 5515 3099 359 359 CD 40404 5515 3100 , , , 40404 5515 3101 403 403 CD 40404 5515 3102 Pennsylvanian pennsylvanian JJ 40404 5515 3103 series series NN 40404 5515 3104 , , , 40404 5515 3105 350 350 CD 40404 5515 3106 , , , 40404 5515 3107 351 351 CD 40404 5515 3108 Perissodactyl Perissodactyl NNP 40404 5515 3109 , , , 40404 5515 3110 408 408 CD 40404 5515 3111 Perlitic Perlitic NNP 40404 5515 3112 structure structure NN 40404 5515 3113 , , , 40404 5515 3114 252 252 CD 40404 5515 3115 Permian permian JJ 40404 5515 3116 series series NN 40404 5515 3117 , , , 40404 5515 3118 350 350 CD 40404 5515 3119 , , , 40404 5515 3120 357 357 CD 40404 5515 3121 , , , 40404 5515 3122 360 360 CD 40404 5515 3123 , , , 40404 5515 3124 366 366 CD 40404 5515 3125 Petrifaction Petrifaction NNP 40404 5515 3126 , , , 40404 5515 3127 296 296 CD 40404 5515 3128 Petroleum Petroleum NNP 40404 5515 3129 , , , 40404 5515 3130 330 330 CD 40404 5515 3131 , , , 40404 5515 3132 343 343 CD 40404 5515 3133 Phenacodus Phenacodus NNP 40404 5515 3134 , , , 40404 5515 3135 406 406 CD 40404 5515 3136 Phyllite Phyllite NNP 40404 5515 3137 , , , 40404 5515 3138 283 283 CD 40404 5515 3139 Phyllopod Phyllopod NNP 40404 5515 3140 , , , 40404 5515 3141 323 323 CD 40404 5515 3142 Piedmont Piedmont NNP 40404 5515 3143 Belt Belt NNP 40404 5515 3144 , , , 40404 5515 3145 87 87 CD 40404 5515 3146 , , , 40404 5515 3147 214 214 CD 40404 5515 3148 , , , 40404 5515 3149 309 309 CD 40404 5515 3150 , , , 40404 5515 3151 374 374 CD 40404 5515 3152 Piedmont Piedmont NNP 40404 5515 3153 plains plain VBZ 40404 5515 3154 , , , 40404 5515 3155 99 99 CD 40404 5515 3156 Pikes pike NNS 40404 5515 3157 Peak Peak NNP 40404 5515 3158 , , , 40404 5515 3159 18 18 CD 40404 5515 3160 _ _ NNP 40404 5515 3161 Pithecanthropus Pithecanthropus NNP 40404 5515 3162 erectus erectus NN 40404 5515 3163 _ _ NNP 40404 5515 3164 , , , 40404 5515 3165 446 446 CD 40404 5515 3166 Placers placer NNS 40404 5515 3167 , , , 40404 5515 3168 287 287 CD 40404 5515 3169 Plains Plains NNPS 40404 5515 3170 of of IN 40404 5515 3171 marine marine JJ 40404 5515 3172 abrasion abrasion NN 40404 5515 3173 , , , 40404 5515 3174 172 172 CD 40404 5515 3175 Planation Planation NNP 40404 5515 3176 , , , 40404 5515 3177 81 81 CD 40404 5515 3178 Plantigrade Plantigrade NNP 40404 5515 3179 , , , 40404 5515 3180 406 406 CD 40404 5515 3181 Platte Platte NNP 40404 5515 3182 River River NNP 40404 5515 3183 , , , 40404 5515 3184 82 82 NNP 40404 5515 3185 Playa Playa NNP 40404 5515 3186 , , , 40404 5515 3187 103 103 CD 40404 5515 3188 Playa Playa NNP 40404 5515 3189 lakes lake NNS 40404 5515 3190 , , , 40404 5515 3191 104 104 CD 40404 5515 3192 Pleistocene Pleistocene NNP 40404 5515 3193 epoch epoch NN 40404 5515 3194 , , , 40404 5515 3195 416 416 CD 40404 5515 3196 Plesiosaurus Plesiosaurus NNP 40404 5515 3197 , , , 40404 5515 3198 389 389 CD 40404 5515 3199 , , , 40404 5515 3200 390 390 CD 40404 5515 3201 Pliocene pliocene JJ 40404 5515 3202 epoch epoch NN 40404 5515 3203 , , , 40404 5515 3204 395 395 CD 40404 5515 3205 Plucking Plucking NNP 40404 5515 3206 , , , 40404 5515 3207 133 133 CD 40404 5515 3208 Po Po NNP 40404 5515 3209 River River NNP 40404 5515 3210 , , , 40404 5515 3211 58 58 CD 40404 5515 3212 , , , 40404 5515 3213 197 197 CD 40404 5515 3214 Pocono Pocono NNP 40404 5515 3215 sandstone sandstone NN 40404 5515 3216 , , , 40404 5515 3217 350 350 CD 40404 5515 3218 , , , 40404 5515 3219 404 404 CD 40404 5515 3220 Porosity Porosity NNP 40404 5515 3221 of of IN 40404 5515 3222 rocks rock NNS 40404 5515 3223 , , , 40404 5515 3224 40 40 CD 40404 5515 3225 Porphyritic porphyritic JJ 40404 5515 3226 structure structure NN 40404 5515 3227 , , , 40404 5515 3228 252 252 CD 40404 5515 3229 Potholes Potholes NNPS 40404 5515 3230 , , , 40404 5515 3231 59 59 CD 40404 5515 3232 Potomac Potomac NNP 40404 5515 3233 River River NNP 40404 5515 3234 , , , 40404 5515 3235 58 58 CD 40404 5515 3236 , , , 40404 5515 3237 66 66 CD 40404 5515 3238 , , , 40404 5515 3239 403 403 CD 40404 5515 3240 Predentata Predentata NNP 40404 5515 3241 , , , 40404 5515 3242 386 386 CD 40404 5515 3243 Pre pre JJ 40404 5515 3244 - - JJ 40404 5515 3245 Kansan Kansan NNP 40404 5515 3246 formation formation NN 40404 5515 3247 , , , 40404 5515 3248 429 429 CD 40404 5515 3249 Primates Primates NNPS 40404 5515 3250 , , , 40404 5515 3251 414 414 CD 40404 5515 3252 Prince Prince NNP 40404 5515 3253 Edward Edward NNP 40404 5515 3254 Island Island NNP 40404 5515 3255 , , , 40404 5515 3256 198 198 CD 40404 5515 3257 Proboscidians Proboscidians NNPS 40404 5515 3258 , , , 40404 5515 3259 410 410 CD 40404 5515 3260 , , , 40404 5515 3261 441 441 CD 40404 5515 3262 , , , 40404 5515 3263 442 442 CD 40404 5515 3264 Pteropods pteropod NNS 40404 5515 3265 , , , 40404 5515 3266 325 325 CD 40404 5515 3267 Pterosaurs Pterosaurs NNP 40404 5515 3268 , , , 40404 5515 3269 391 391 CD 40404 5515 3270 Puget Puget NNP 40404 5515 3271 Sound Sound NNP 40404 5515 3272 , , , 40404 5515 3273 396 396 CD 40404 5515 3274 Pumice Pumice NNP 40404 5515 3275 , , , 40404 5515 3276 250 250 CD 40404 5515 3277 Pyrite Pyrite NNP 40404 5515 3278 , , , 40404 5515 3279 13 13 CD 40404 5515 3280 Quarry Quarry NNP 40404 5515 3281 water water NN 40404 5515 3282 , , , 40404 5515 3283 15 15 CD 40404 5515 3284 Quartz Quartz NNP 40404 5515 3285 , , , 40404 5515 3286 6 6 CD 40404 5515 3287 , , , 40404 5515 3288 9 9 CD 40404 5515 3289 Quartz quartz NN 40404 5515 3290 schist schist NN 40404 5515 3291 , , , 40404 5515 3292 284 284 CD 40404 5515 3293 Quaternary quaternary JJ 40404 5515 3294 period period NN 40404 5515 3295 , , , 40404 5515 3296 395 395 CD 40404 5515 3297 , , , 40404 5515 3298 416 416 CD 40404 5515 3299 Quebec Quebec NNP 40404 5515 3300 , , , 40404 5515 3301 28 28 CD 40404 5515 3302 Rain rain NN 40404 5515 3303 , , , 40404 5515 3304 erosion erosion NN 40404 5515 3305 , , , 40404 5515 3306 23 23 CD 40404 5515 3307 Rain rain NN 40404 5515 3308 prints print NNS 40404 5515 3309 , , , 40404 5515 3310 181 181 CD 40404 5515 3311 Recent recent JJ 40404 5515 3312 epoch epoch NN 40404 5515 3313 , , , 40404 5515 3314 416 416 CD 40404 5515 3315 , , , 40404 5515 3316 440 440 CD 40404 5515 3317 , , , 40404 5515 3318 447 447 CD 40404 5515 3319 Reconcentration Reconcentration NNP 40404 5515 3320 of of IN 40404 5515 3321 ores ore NNS 40404 5515 3322 , , , 40404 5515 3323 289 289 CD 40404 5515 3324 Record Record NNP 40404 5515 3325 , , , 40404 5515 3326 the the DT 40404 5515 3327 geological geological NN 40404 5515 3328 , , , 40404 5515 3329 291 291 CD 40404 5515 3330 Red red JJ 40404 5515 3331 clay clay NN 40404 5515 3332 , , , 40404 5515 3333 187 187 CD 40404 5515 3334 Red Red NNP 40404 5515 3335 River River NNP 40404 5515 3336 of of IN 40404 5515 3337 the the DT 40404 5515 3338 North North NNP 40404 5515 3339 , , , 40404 5515 3340 67 67 CD 40404 5515 3341 Red Red NNP 40404 5515 3342 Sea Sea NNP 40404 5515 3343 , , , 40404 5515 3344 221 221 CD 40404 5515 3345 Red red JJ 40404 5515 3346 snow snow NN 40404 5515 3347 , , , 40404 5515 3348 115 115 CD 40404 5515 3349 Reefs Reefs NNPS 40404 5515 3350 , , , 40404 5515 3351 coral coral NN 40404 5515 3352 , , , 40404 5515 3353 188 188 CD 40404 5515 3354 Regional regional JJ 40404 5515 3355 intrusions intrusion NNS 40404 5515 3356 , , , 40404 5515 3357 272 272 CD 40404 5515 3358 Reptiles reptile NNS 40404 5515 3359 , , , 40404 5515 3360 367 367 CD 40404 5515 3361 , , , 40404 5515 3362 383 383 CD 40404 5515 3363 Rhinoceros Rhinoceros NNP 40404 5515 3364 , , , 40404 5515 3365 408 408 CD 40404 5515 3366 Rhizocarp Rhizocarp NNP 40404 5515 3367 , , , 40404 5515 3368 343 343 CD 40404 5515 3369 Rhode Rhode NNP 40404 5515 3370 Island Island NNP 40404 5515 3371 , , , 40404 5515 3372 356 356 CD 40404 5515 3373 Rhone Rhone NNP 40404 5515 3374 glacier glacier NN 40404 5515 3375 , , , 40404 5515 3376 123 123 CD 40404 5515 3377 Rhyolite Rhyolite NNP 40404 5515 3378 , , , 40404 5515 3379 240 240 CD 40404 5515 3380 Richmond Richmond NNP 40404 5515 3381 , , , 40404 5515 3382 Va. Virginia NNP 40404 5515 3383 , , , 40404 5515 3384 370 370 CD 40404 5515 3385 Rift rift JJ 40404 5515 3386 valleys valley NNS 40404 5515 3387 , , , 40404 5515 3388 221 221 CD 40404 5515 3389 Ripple ripple JJ 40404 5515 3390 marks mark NNS 40404 5515 3391 , , , 40404 5515 3392 180 180 CD 40404 5515 3393 Rivers river NNS 40404 5515 3394 , , , 40404 5515 3395 54 54 CD 40404 5515 3396 bars bar NNS 40404 5515 3397 , , , 40404 5515 3398 65 65 CD 40404 5515 3399 braided braid VBD 40404 5515 3400 channels channel NNS 40404 5515 3401 , , , 40404 5515 3402 94 94 CD 40404 5515 3403 deltas delta NNS 40404 5515 3404 , , , 40404 5515 3405 108 108 CD 40404 5515 3406 deposition deposition NN 40404 5515 3407 , , , 40404 5515 3408 62 62 CD 40404 5515 3409 discharge discharge NN 40404 5515 3410 , , , 40404 5515 3411 55 55 CD 40404 5515 3412 erosion erosion NN 40404 5515 3413 , , , 40404 5515 3414 59 59 CD 40404 5515 3415 estuaries estuary NNS 40404 5515 3416 , , , 40404 5515 3417 85 85 CD 40404 5515 3418 flood flood NN 40404 5515 3419 plains plain NNS 40404 5515 3420 , , , 40404 5515 3421 93 93 CD 40404 5515 3422 floods flood NNS 40404 5515 3423 , , , 40404 5515 3424 54 54 CD 40404 5515 3425 graded grade VBD 40404 5515 3426 , , , 40404 5515 3427 74 74 CD 40404 5515 3428 gradients gradient NNS 40404 5515 3429 , , , 40404 5515 3430 82 82 CD 40404 5515 3431 load load NN 40404 5515 3432 of of IN 40404 5515 3433 , , , 40404 5515 3434 56 56 CD 40404 5515 3435 mature mature JJ 40404 5515 3436 , , , 40404 5515 3437 72 72 CD 40404 5515 3438 , , , 40404 5515 3439 80 80 CD 40404 5515 3440 , , , 40404 5515 3441 97 97 CD 40404 5515 3442 , , , 40404 5515 3443 98 98 CD 40404 5515 3444 meanders meander NNS 40404 5515 3445 , , , 40404 5515 3446 96 96 CD 40404 5515 3447 plains plain NNS 40404 5515 3448 , , , 40404 5515 3449 99 99 CD 40404 5515 3450 profile profile NN 40404 5515 3451 of of IN 40404 5515 3452 , , , 40404 5515 3453 73 73 CD 40404 5515 3454 revived revive VBD 40404 5515 3455 , , , 40404 5515 3456 85 85 CD 40404 5515 3457 run run NN 40404 5515 3458 - - HYPH 40404 5515 3459 off off NN 40404 5515 3460 , , , 40404 5515 3461 54 54 CD 40404 5515 3462 structure structure NN 40404 5515 3463 of of IN 40404 5515 3464 deposits deposit NNS 40404 5515 3465 , , , 40404 5515 3466 102 102 CD 40404 5515 3467 terraces terrace NNS 40404 5515 3468 , , , 40404 5515 3469 96 96 CD 40404 5515 3470 transportation transportation NN 40404 5515 3471 , , , 40404 5515 3472 56 56 CD 40404 5515 3473 , , , 40404 5515 3474 64 64 CD 40404 5515 3475 waterfalls waterfall NNS 40404 5515 3476 , , , 40404 5515 3477 78 78 CD 40404 5515 3478 young young JJ 40404 5515 3479 , , , 40404 5515 3480 67 67 CD 40404 5515 3481 Roches roche NNS 40404 5515 3482 moutonnées moutonnées IN 40404 5515 3483 , , , 40404 5515 3484 134 134 CD 40404 5515 3485 , , , 40404 5515 3486 418 418 CD 40404 5515 3487 Rock Rock NNP 40404 5515 3488 bench bench NN 40404 5515 3489 , , , 40404 5515 3490 156 156 CD 40404 5515 3491 Hock Hock NNP 40404 5515 3492 salt salt NN 40404 5515 3493 , , , 40404 5515 3494 12 12 CD 40404 5515 3495 , , , 40404 5515 3496 357 357 CD 40404 5515 3497 , , , 40404 5515 3498 371 371 CD 40404 5515 3499 Rocky Rocky NNP 40404 5515 3500 Mountains Mountains NNPS 40404 5515 3501 , , , 40404 5515 3502 375 375 CD 40404 5515 3503 , , , 40404 5515 3504 399 399 CD 40404 5515 3505 , , , 40404 5515 3506 437 437 CD 40404 5515 3507 Ruminants ruminant NNS 40404 5515 3508 , , , 40404 5515 3509 412 412 CD 40404 5515 3510 Saber Saber NNP 40404 5515 3511 - - HYPH 40404 5515 3512 tooth tooth NNP 40404 5515 3513 tiger tiger NNP 40404 5515 3514 , , , 40404 5515 3515 413 413 CD 40404 5515 3516 Saguenay Saguenay NNP 40404 5515 3517 River River NNP 40404 5515 3518 , , , 40404 5515 3519 90 90 CD 40404 5515 3520 , , , 40404 5515 3521 201 201 CD 40404 5515 3522 Sahara Sahara NNP 40404 5515 3523 , , , 40404 5515 3524 15 15 CD 40404 5515 3525 , , , 40404 5515 3526 146 146 CD 40404 5515 3527 , , , 40404 5515 3528 150 150 CD 40404 5515 3529 St. St. NNP 40404 5515 3530 Elias Elias NNP 40404 5515 3531 Range Range NNP 40404 5515 3532 , , , 40404 5515 3533 399 399 CD 40404 5515 3534 St. St. NNP 40404 5515 3535 Peter Peter NNP 40404 5515 3536 sandstone sandstone NN 40404 5515 3537 , , , 40404 5515 3538 150 150 CD 40404 5515 3539 Salamanders Salamanders NNPS 40404 5515 3540 , , , 40404 5515 3541 383 383 CD 40404 5515 3542 Salina Salina NNP 40404 5515 3543 series series NN 40404 5515 3544 , , , 40404 5515 3545 335 335 CD 40404 5515 3546 Salt Salt NNP 40404 5515 3547 , , , 40404 5515 3548 common common JJ 40404 5515 3549 , , , 40404 5515 3550 106 106 CD 40404 5515 3551 , , , 40404 5515 3552 335 335 CD 40404 5515 3553 Salt Salt NNP 40404 5515 3554 lakes lake NNS 40404 5515 3555 , , , 40404 5515 3556 106 106 CD 40404 5515 3557 San San NNP 40404 5515 3558 Francisco Francisco NNP 40404 5515 3559 Bay Bay NNP 40404 5515 3560 , , , 40404 5515 3561 197 197 CD 40404 5515 3562 Sand sand NN 40404 5515 3563 , , , 40404 5515 3564 beach beach NN 40404 5515 3565 , , , 40404 5515 3566 163 163 CD 40404 5515 3567 of of IN 40404 5515 3568 deserts desert NNS 40404 5515 3569 , , , 40404 5515 3570 149 149 CD 40404 5515 3571 reefs reef NNS 40404 5515 3572 , , , 40404 5515 3573 165 165 CD 40404 5515 3574 , , , 40404 5515 3575 167 167 CD 40404 5515 3576 storms storm NNS 40404 5515 3577 , , , 40404 5515 3578 145 145 CD 40404 5515 3579 Sandstone Sandstone NNP 40404 5515 3580 , , , 40404 5515 3581 6 6 CD 40404 5515 3582 , , , 40404 5515 3583 7 7 CD 40404 5515 3584 , , , 40404 5515 3585 186 186 CD 40404 5515 3586 Sarcoui Sarcoui NNP 40404 5515 3587 , , , 40404 5515 3588 258 258 CD 40404 5515 3589 Sauropoda Sauropoda NNP 40404 5515 3590 , , , 40404 5515 3591 386 386 CD 40404 5515 3592 Schist schist NN 40404 5515 3593 , , , 40404 5515 3594 283 283 CD 40404 5515 3595 Schladebach Schladebach NNP 40404 5515 3596 , , , 40404 5515 3597 277 277 CD 40404 5515 3598 Scoria Scoria NNP 40404 5515 3599 , , , 40404 5515 3600 250 250 CD 40404 5515 3601 , , , 40404 5515 3602 255 255 CD 40404 5515 3603 Scorpions scorpion NNS 40404 5515 3604 , , , 40404 5515 3605 339 339 CD 40404 5515 3606 , , , 40404 5515 3607 340 340 CD 40404 5515 3608 , , , 40404 5515 3609 363 363 CD 40404 5515 3610 Scotland Scotland NNP 40404 5515 3611 , , , 40404 5515 3612 170 170 CD 40404 5515 3613 , , , 40404 5515 3614 220 220 CD 40404 5515 3615 , , , 40404 5515 3616 402 402 CD 40404 5515 3617 Sea Sea NNP 40404 5515 3618 , , , 40404 5515 3619 155 155 CD 40404 5515 3620 erosion erosion NN 40404 5515 3621 , , , 40404 5515 3622 156 156 CD 40404 5515 3623 deposition deposition NN 40404 5515 3624 , , , 40404 5515 3625 174 174 CD 40404 5515 3626 transportation transportation NN 40404 5515 3627 , , , 40404 5515 3628 162 162 CD 40404 5515 3629 Sea Sea NNP 40404 5515 3630 arch arch NN 40404 5515 3631 , , , 40404 5515 3632 159 159 CD 40404 5515 3633 Sea Sea NNP 40404 5515 3634 cave cave NN 40404 5515 3635 , , , 40404 5515 3636 158 158 CD 40404 5515 3637 Sea Sea NNP 40404 5515 3638 cliff cliff NN 40404 5515 3639 , , , 40404 5515 3640 156 156 CD 40404 5515 3641 , , , 40404 5515 3642 157 157 CD 40404 5515 3643 Sea Sea NNP 40404 5515 3644 cucumber cucumber NN 40404 5515 3645 , , , 40404 5515 3646 363 363 CD 40404 5515 3647 Seals seal NNS 40404 5515 3648 , , , 40404 5515 3649 414 414 CD 40404 5515 3650 Sea Sea NNP 40404 5515 3651 stacks stack NNS 40404 5515 3652 , , , 40404 5515 3653 169 169 CD 40404 5515 3654 Sea Sea NNP 40404 5515 3655 urchin urchin NN 40404 5515 3656 , , , 40404 5515 3657 332 332 CD 40404 5515 3658 , , , 40404 5515 3659 379 379 CD 40404 5515 3660 Seaweed Seaweed NNP 40404 5515 3661 , , , 40404 5515 3662 176 176 CD 40404 5515 3663 Sedimentary sedimentary JJ 40404 5515 3664 rocks rock NNS 40404 5515 3665 , , , 40404 5515 3666 8 8 CD 40404 5515 3667 , , , 40404 5515 3668 9 9 CD 40404 5515 3669 Selkirk Selkirk NNP 40404 5515 3670 Mountains Mountains NNPS 40404 5515 3671 , , , 40404 5515 3672 218 218 CD 40404 5515 3673 Septa Septa NNP 40404 5515 3674 , , , 40404 5515 3675 338 338 CD 40404 5515 3676 Sequoia sequoia NN 40404 5515 3677 , , , 40404 5515 3678 378 378 CD 40404 5515 3679 Shale Shale NNP 40404 5515 3680 , , , 40404 5515 3681 8 8 CD 40404 5515 3682 , , , 40404 5515 3683 9 9 CD 40404 5515 3684 Sharks Sharks NNP 40404 5515 3685 , , , 40404 5515 3686 345 345 CD 40404 5515 3687 , , , 40404 5515 3688 405 405 CD 40404 5515 3689 Shasta Shasta NNP 40404 5515 3690 , , , 40404 5515 3691 Mount Mount NNP 40404 5515 3692 , , , 40404 5515 3693 262 262 CD 40404 5515 3694 , , , 40404 5515 3695 400 400 CD 40404 5515 3696 Sheep Sheep NNS 40404 5515 3697 , , , 40404 5515 3698 413 413 CD 40404 5515 3699 Shenandoah Shenandoah NNP 40404 5515 3700 valley valley NN 40404 5515 3701 , , , 40404 5515 3702 403 403 CD 40404 5515 3703 Shores shore NNS 40404 5515 3704 of of IN 40404 5515 3705 elevation elevation NN 40404 5515 3706 , , , 40404 5515 3707 167 167 CD 40404 5515 3708 Shores shore NNS 40404 5515 3709 of of IN 40404 5515 3710 depression depression NN 40404 5515 3711 , , , 40404 5515 3712 169 169 CD 40404 5515 3713 Siderite Siderite NNP 40404 5515 3714 , , , 40404 5515 3715 63 63 CD 40404 5515 3716 Sierra Sierra NNP 40404 5515 3717 Nevada Nevada NNP 40404 5515 3718 Mountains Mountains NNPS 40404 5515 3719 , , , 40404 5515 3720 24 24 CD 40404 5515 3721 , , , 40404 5515 3722 90 90 CD 40404 5515 3723 , , , 40404 5515 3724 99 99 CD 40404 5515 3725 , , , 40404 5515 3726 224 224 CD 40404 5515 3727 , , , 40404 5515 3728 229 229 CD 40404 5515 3729 , , , 40404 5515 3730 272 272 CD 40404 5515 3731 , , , 40404 5515 3732 287 287 CD 40404 5515 3733 , , , 40404 5515 3734 318 318 CD 40404 5515 3735 , , , 40404 5515 3736 357 357 CD 40404 5515 3737 , , , 40404 5515 3738 371 371 CD 40404 5515 3739 , , , 40404 5515 3740 372 372 CD 40404 5515 3741 , , , 40404 5515 3742 396 396 CD 40404 5515 3743 , , , 40404 5515 3744 398 398 CD 40404 5515 3745 , , , 40404 5515 3746 390 390 CD 40404 5515 3747 , , , 40404 5515 3748 402 402 CD 40404 5515 3749 , , , 40404 5515 3750 437 437 CD 40404 5515 3751 Sigillaria Sigillaria NNP 40404 5515 3752 , , , 40404 5515 3753 362 362 CD 40404 5515 3754 , , , 40404 5515 3755 367 367 CD 40404 5515 3756 Silica Silica NNP 40404 5515 3757 , , , 40404 5515 3758 6 6 CD 40404 5515 3759 , , , 40404 5515 3760 178 178 CD 40404 5515 3761 Silurian silurian JJ 40404 5515 3762 period period NN 40404 5515 3763 , , , 40404 5515 3764 316 316 CD 40404 5515 3765 , , , 40404 5515 3766 334 334 CD 40404 5515 3767 life life NN 40404 5515 3768 of of IN 40404 5515 3769 , , , 40404 5515 3770 338 338 CD 40404 5515 3771 Sink sink NN 40404 5515 3772 hole hole NN 40404 5515 3773 , , , 40404 5515 3774 46 46 CD 40404 5515 3775 Slate Slate NNP 40404 5515 3776 , , , 40404 5515 3777 207 207 CD 40404 5515 3778 , , , 40404 5515 3779 282 282 CD 40404 5515 3780 Slaty Slaty NNS 40404 5515 3781 cleavage cleavage VBP 40404 5515 3782 , , , 40404 5515 3783 207 207 CD 40404 5515 3784 Slickensides slickenside NNS 40404 5515 3785 , , , 40404 5515 3786 217 217 CD 40404 5515 3787 Snake Snake NNP 40404 5515 3788 River River NNP 40404 5515 3789 lavas lavas NN 40404 5515 3790 , , , 40404 5515 3791 400 400 CD 40404 5515 3792 , , , 40404 5515 3793 401 401 CD 40404 5515 3794 Snakes Snakes NNP 40404 5515 3795 , , , 40404 5515 3796 384 384 CD 40404 5515 3797 , , , 40404 5515 3798 405 405 CD 40404 5515 3799 Soil soil NN 40404 5515 3800 , , , 40404 5515 3801 19 19 CD 40404 5515 3802 Solfatara Solfatara NNP 40404 5515 3803 , , , 40404 5515 3804 260 260 CD 40404 5515 3805 Solution Solution NNP 40404 5515 3806 , , , 40404 5515 3807 11 11 CD 40404 5515 3808 Soufriére Soufriére NNP 40404 5515 3809 , , , 40404 5515 3810 246 246 CD 40404 5515 3811 South South NNP 40404 5515 3812 America America NNP 40404 5515 3813 , , , 40404 5515 3814 357 357 CD 40404 5515 3815 South South NNP 40404 5515 3816 Carolina Carolina NNP 40404 5515 3817 , , , 40404 5515 3818 233 233 CD 40404 5515 3819 South South NNP 40404 5515 3820 Dakota Dakota NNP 40404 5515 3821 , , , 40404 5515 3822 276 276 CD 40404 5515 3823 , , , 40404 5515 3824 374 374 CD 40404 5515 3825 , , , 40404 5515 3826 397 397 CD 40404 5515 3827 Spanish spanish JJ 40404 5515 3828 Peaks Peaks NNPS 40404 5515 3829 , , , 40404 5515 3830 271 271 CD 40404 5515 3831 , , , 40404 5515 3832 376 376 CD 40404 5515 3833 Spherulites Spherulites NNPS 40404 5515 3834 , , , 40404 5515 3835 252 252 CD 40404 5515 3836 Spiders spider NNS 40404 5515 3837 , , , 40404 5515 3838 363 363 CD 40404 5515 3839 Spitzbergen Spitzbergen NNP 40404 5515 3840 , , , 40404 5515 3841 378 378 CD 40404 5515 3842 Sponges sponge NNS 40404 5515 3843 , , , 40404 5515 3844 320 320 CD 40404 5515 3845 , , , 40404 5515 3846 379 379 CD 40404 5515 3847 Springs Springs NNP 40404 5515 3848 , , , 40404 5515 3849 41 41 CD 40404 5515 3850 thermal thermal JJ 40404 5515 3851 , , , 40404 5515 3852 50 50 CD 40404 5515 3853 Stalactite Stalactite NNP 40404 5515 3854 , , , 40404 5515 3855 48 48 CD 40404 5515 3856 Stalagmite stalagmite NN 40404 5515 3857 , , , 40404 5515 3858 48 48 CD 40404 5515 3859 Starfishes starfish NNS 40404 5515 3860 , , , 40404 5515 3861 332 332 CD 40404 5515 3862 Staubbach Staubbach NNP 40404 5515 3863 , , , 40404 5515 3864 140 140 CD 40404 5515 3865 Stegosaurus Stegosaurus NNP 40404 5515 3866 , , , 40404 5515 3867 387 387 CD 40404 5515 3868 Stoss Stoss NNP 40404 5515 3869 side side NN 40404 5515 3870 , , , 40404 5515 3871 134 134 CD 40404 5515 3872 Stratification Stratification NNP 40404 5515 3873 , , , 40404 5515 3874 5 5 CD 40404 5515 3875 , , , 40404 5515 3876 64 64 CD 40404 5515 3877 , , , 40404 5515 3878 180 180 CD 40404 5515 3879 Striæ Striæ NNP 40404 5515 3880 , , , 40404 5515 3881 glacial glacial JJ 40404 5515 3882 , , , 40404 5515 3883 114 114 CD 40404 5515 3884 , , , 40404 5515 3885 133 133 CD 40404 5515 3886 , , , 40404 5515 3887 418 418 CD 40404 5515 3888 Strike strike NN 40404 5515 3889 , , , 40404 5515 3890 203 203 CD 40404 5515 3891 Strike strike NN 40404 5515 3892 fault fault NN 40404 5515 3893 , , , 40404 5515 3894 225 225 CD 40404 5515 3895 Stromatopora Stromatopora NNP 40404 5515 3896 , , , 40404 5515 3897 331 331 CD 40404 5515 3898 , , , 40404 5515 3899 379 379 CD 40404 5515 3900 Stromboli Stromboli NNP 40404 5515 3901 , , , 40404 5515 3902 244 244 CD 40404 5515 3903 Subsidence Subsidence NNP 40404 5515 3904 , , , 40404 5515 3905 85 85 CD 40404 5515 3906 , , , 40404 5515 3907 183 183 CD 40404 5515 3908 , , , 40404 5515 3909 197 197 CD 40404 5515 3910 Sun Sun NNP 40404 5515 3911 cracks crack NNS 40404 5515 3912 , , , 40404 5515 3913 180 180 CD 40404 5515 3914 Superior Superior NNP 40404 5515 3915 , , , 40404 5515 3916 Lake Lake NNP 40404 5515 3917 , , , 40404 5515 3918 257 257 CD 40404 5515 3919 Superposition superposition NN 40404 5515 3920 , , , 40404 5515 3921 law law NN 40404 5515 3922 of of IN 40404 5515 3923 , , , 40404 5515 3924 293 293 CD 40404 5515 3925 Susquehanna Susquehanna NNP 40404 5515 3926 River River NNP 40404 5515 3927 , , , 40404 5515 3928 403 403 CD 40404 5515 3929 Sutlej Sutlej NNP 40404 5515 3930 River River NNP 40404 5515 3931 , , , 40404 5515 3932 209 209 CD 40404 5515 3933 Sweden Sweden NNP 40404 5515 3934 , , , 40404 5515 3935 199 199 CD 40404 5515 3936 Swine Swine NNS 40404 5515 3937 , , , 40404 5515 3938 412 412 CD 40404 5515 3939 Switzerland Switzerland NNP 40404 5515 3940 , , , 40404 5515 3941 28 28 CD 40404 5515 3942 , , , 40404 5515 3943 427 427 CD 40404 5515 3944 Syenite Syenite NNP 40404 5515 3945 , , , 40404 5515 3946 274 274 CD 40404 5515 3947 Synclinal synclinal JJ 40404 5515 3948 fold fold NN 40404 5515 3949 , , , 40404 5515 3950 204 204 CD 40404 5515 3951 Syracuse Syracuse NNP 40404 5515 3952 , , , 40404 5515 3953 N.Y. New York NNP 40404 5515 3954 , , , 40404 5515 3955 436 436 CD 40404 5515 3956 Syringopora Syringopora NNP 40404 5515 3957 , , , 40404 5515 3958 339 339 CD 40404 5515 3959 Tabulæ Tabulæ NNP 40404 5515 3960 , , , 40404 5515 3961 339 339 CD 40404 5515 3962 Taconic taconic JJ 40404 5515 3963 deformation deformation NN 40404 5515 3964 , , , 40404 5515 3965 329 329 CD 40404 5515 3966 Taconic Taconic NNP 40404 5515 3967 Mountains Mountains NNPS 40404 5515 3968 , , , 40404 5515 3969 376 376 CD 40404 5515 3970 Talc Talc NNP 40404 5515 3971 , , , 40404 5515 3972 284 284 CD 40404 5515 3973 Talc Talc NNP 40404 5515 3974 schist schist NN 40404 5515 3975 , , , 40404 5515 3976 284 284 CD 40404 5515 3977 Talus Talus NNP 40404 5515 3978 , , , 40404 5515 3979 23 23 CD 40404 5515 3980 Tapir Tapir NNP 40404 5515 3981 , , , 40404 5515 3982 409 409 CD 40404 5515 3983 Teleost teleost NN 40404 5515 3984 fishes fish NNS 40404 5515 3985 , , , 40404 5515 3986 349 349 CD 40404 5515 3987 , , , 40404 5515 3988 382 382 CD 40404 5515 3989 , , , 40404 5515 3990 405 405 CD 40404 5515 3991 Tennessee Tennessee NNP 40404 5515 3992 , , , 40404 5515 3993 90 90 CD 40404 5515 3994 , , , 40404 5515 3995 373 373 CD 40404 5515 3996 Terminal terminal JJ 40404 5515 3997 moraines moraine NNS 40404 5515 3998 , , , 40404 5515 3999 126 126 CD 40404 5515 4000 , , , 40404 5515 4001 422 422 CD 40404 5515 4002 , , , 40404 5515 4003 432 432 CD 40404 5515 4004 Terraces terrace NNS 40404 5515 4005 , , , 40404 5515 4006 86 86 CD 40404 5515 4007 , , , 40404 5515 4008 96 96 CD 40404 5515 4009 Tertiary tertiary JJ 40404 5515 4010 period period NN 40404 5515 4011 , , , 40404 5515 4012 395 395 CD 40404 5515 4013 Texas Texas NNP 40404 5515 4014 , , , 40404 5515 4015 15 15 CD 40404 5515 4016 , , , 40404 5515 4017 69 69 CD 40404 5515 4018 , , , 40404 5515 4019 71 71 CD 40404 5515 4020 , , , 40404 5515 4021 166 166 CD 40404 5515 4022 , , , 40404 5515 4023 336 336 CD 40404 5515 4024 , , , 40404 5515 4025 356 356 CD 40404 5515 4026 , , , 40404 5515 4027 357 357 CD 40404 5515 4028 , , , 40404 5515 4029 371 371 CD 40404 5515 4030 , , , 40404 5515 4031 373 373 CD 40404 5515 4032 , , , 40404 5515 4033 374 374 CD 40404 5515 4034 , , , 40404 5515 4035 378 378 CD 40404 5515 4036 Theromorphs theromorph NNS 40404 5515 4037 , , , 40404 5515 4038 383 383 CD 40404 5515 4039 Throw Throw NNP 40404 5515 4040 , , , 40404 5515 4041 217 217 CD 40404 5515 4042 Thrust thrust JJ 40404 5515 4043 faults fault NNS 40404 5515 4044 , , , 40404 5515 4045 217 217 CD 40404 5515 4046 Till till IN 40404 5515 4047 , , , 40404 5515 4048 418 418 CD 40404 5515 4049 Till Till NNP 40404 5515 4050 plains plain NNS 40404 5515 4051 , , , 40404 5515 4052 420 420 CD 40404 5515 4053 Toronto Toronto NNP 40404 5515 4054 , , , 40404 5515 4055 443 443 CD 40404 5515 4056 Trachyte Trachyte NNP 40404 5515 4057 , , , 40404 5515 4058 249 249 CD 40404 5515 4059 , , , 40404 5515 4060 258 258 CD 40404 5515 4061 Travertine Travertine NNP 40404 5515 4062 , , , 40404 5515 4063 52 52 CD 40404 5515 4064 Trenton Trenton NNP 40404 5515 4065 series series NN 40404 5515 4066 , , , 40404 5515 4067 327 327 CD 40404 5515 4068 Triassic triassic JJ 40404 5515 4069 period period NN 40404 5515 4070 , , , 40404 5515 4071 369 369 CD 40404 5515 4072 Triceratops triceratop NNS 40404 5515 4073 , , , 40404 5515 4074 387 387 CD 40404 5515 4075 Trilobites Trilobites NNPS 40404 5515 4076 , , , 40404 5515 4077 322 322 CD 40404 5515 4078 , , , 40404 5515 4079 332 332 CD 40404 5515 4080 , , , 40404 5515 4081 339 339 CD 40404 5515 4082 , , , 40404 5515 4083 363 363 CD 40404 5515 4084 , , , 40404 5515 4085 367 367 CD 40404 5515 4086 Tuff Tuff NNP 40404 5515 4087 , , , 40404 5515 4088 255 255 CD 40404 5515 4089 Turkestan Turkestan NNP 40404 5515 4090 , , , 40404 5515 4091 103 103 CD 40404 5515 4092 Turtles turtle NNS 40404 5515 4093 , , , 40404 5515 4094 384 384 CD 40404 5515 4095 Unconformity Unconformity NNP 40404 5515 4096 , , , 40404 5515 4097 227 227 CD 40404 5515 4098 Undertow undertow CD 40404 5515 4099 , , , 40404 5515 4100 174 174 CD 40404 5515 4101 Utah Utah NNP 40404 5515 4102 , , , 40404 5515 4103 107 107 CD 40404 5515 4104 , , , 40404 5515 4105 271 271 CD 40404 5515 4106 , , , 40404 5515 4107 360 360 CD 40404 5515 4108 , , , 40404 5515 4109 371 371 CD 40404 5515 4110 , , , 40404 5515 4111 396 396 CD 40404 5515 4112 , , , 40404 5515 4113 399 399 CD 40404 5515 4114 Utica Utica NNP 40404 5515 4115 series series NN 40404 5515 4116 , , , 40404 5515 4117 327 327 CD 40404 5515 4118 V v NN 40404 5515 4119 - - HYPH 40404 5515 4120 Valleys Valleys NNP 40404 5515 4121 , , , 40404 5515 4122 74 74 CD 40404 5515 4123 Valley Valley NNP 40404 5515 4124 drift drift NN 40404 5515 4125 , , , 40404 5515 4126 128 128 CD 40404 5515 4127 Valley Valley NNP 40404 5515 4128 trains train NNS 40404 5515 4129 , , , 40404 5515 4130 425 425 CD 40404 5515 4131 Valleys valley NNS 40404 5515 4132 , , , 40404 5515 4133 66 66 CD 40404 5515 4134 Vermont Vermont NNP 40404 5515 4135 , , , 40404 5515 4136 309 309 CD 40404 5515 4137 , , , 40404 5515 4138 329 329 CD 40404 5515 4139 , , , 40404 5515 4140 420 420 CD 40404 5515 4141 Vernagt vernagt NN 40404 5515 4142 glacier glacier NN 40404 5515 4143 , , , 40404 5515 4144 129 129 CD 40404 5515 4145 Vertebrates Vertebrates NNP 40404 5515 4146 , , , 40404 5515 4147 334 334 CD 40404 5515 4148 , , , 40404 5515 4149 349 349 CD 40404 5515 4150 Vesuvius Vesuvius NNP 40404 5515 4151 , , , 40404 5515 4152 247 247 CD 40404 5515 4153 , , , 40404 5515 4154 259 259 CD 40404 5515 4155 , , , 40404 5515 4156 402 402 CD 40404 5515 4157 Virginia Virginia NNP 40404 5515 4158 , , , 40404 5515 4159 48 48 CD 40404 5515 4160 , , , 40404 5515 4161 84 84 CD 40404 5515 4162 , , , 40404 5515 4163 106 106 CD 40404 5515 4164 , , , 40404 5515 4165 370 370 CD 40404 5515 4166 , , , 40404 5515 4167 403 403 CD 40404 5515 4168 , , , 40404 5515 4169 442 442 CD 40404 5515 4170 Volcanic volcanic JJ 40404 5515 4171 ashes ashe NNS 40404 5515 4172 , , , 40404 5515 4173 244 244 CD 40404 5515 4174 , , , 40404 5515 4175 255 255 CD 40404 5515 4176 cones cone NNS 40404 5515 4177 , , , 40404 5515 4178 257 257 CD 40404 5515 4179 necks neck NNS 40404 5515 4180 , , , 40404 5515 4181 267 267 CD 40404 5515 4182 rocks rock NNS 40404 5515 4183 , , , 40404 5515 4184 249 249 CD 40404 5515 4185 Volcanoes Volcanoes NNPS 40404 5515 4186 , , , 40404 5515 4187 238 238 CD 40404 5515 4188 causes cause NNS 40404 5515 4189 of of IN 40404 5515 4190 , , , 40404 5515 4191 278 278 CD 40404 5515 4192 decadent decadent NN 40404 5515 4193 , , , 40404 5515 4194 260 260 CD 40404 5515 4195 submarine submarine NN 40404 5515 4196 , , , 40404 5515 4197 248 248 CD 40404 5515 4198 tertiary tertiary NN 40404 5515 4199 , , , 40404 5515 4200 399 399 CD 40404 5515 4201 Walrus Walrus NNP 40404 5515 4202 , , , 40404 5515 4203 414 414 CD 40404 5515 4204 Warped Warped NNP 40404 5515 4205 valleys valley NNS 40404 5515 4206 , , , 40404 5515 4207 101 101 CD 40404 5515 4208 Warping Warping NNP 40404 5515 4209 , , , 40404 5515 4210 198 198 CD 40404 5515 4211 Wasatch Wasatch NNP 40404 5515 4212 Mountains Mountains NNPS 40404 5515 4213 , , , 40404 5515 4214 375 375 CD 40404 5515 4215 Washington Washington NNP 40404 5515 4216 , , , 40404 5515 4217 18 18 CD 40404 5515 4218 , , , 40404 5515 4219 91 91 CD 40404 5515 4220 , , , 40404 5515 4221 150 150 CD 40404 5515 4222 , , , 40404 5515 4223 400 400 CD 40404 5515 4224 Waterfalls Waterfalls NNP 40404 5515 4225 , , , 40404 5515 4226 59 59 CD 40404 5515 4227 , , , 40404 5515 4228 78 78 CD 40404 5515 4229 Waves wave NNS 40404 5515 4230 , , , 40404 5515 4231 156 156 CD 40404 5515 4232 Weathering weathering NN 40404 5515 4233 , , , 40404 5515 4234 5 5 CD 40404 5515 4235 chemical chemical NN 40404 5515 4236 , , , 40404 5515 4237 10 10 CD 40404 5515 4238 differential differential NN 40404 5515 4239 , , , 40404 5515 4240 29 29 CD 40404 5515 4241 mechanical mechanical JJ 40404 5515 4242 , , , 40404 5515 4243 13 13 CD 40404 5515 4244 Wells Wells NNP 40404 5515 4245 , , , 40404 5515 4246 41 41 CD 40404 5515 4247 artesian artesian NN 40404 5515 4248 , , , 40404 5515 4249 44 44 CD 40404 5515 4250 West West NNP 40404 5515 4251 Virginia Virginia NNP 40404 5515 4252 , , , 40404 5515 4253 79 79 CD 40404 5515 4254 , , , 40404 5515 4255 357 357 CD 40404 5515 4256 , , , 40404 5515 4257 359 359 CD 40404 5515 4258 White White NNP 40404 5515 4259 Mountains Mountains NNPS 40404 5515 4260 , , , 40404 5515 4261 443 443 CD 40404 5515 4262 Wind Wind NNP 40404 5515 4263 , , , 40404 5515 4264 144 144 CD 40404 5515 4265 deposition deposition NN 40404 5515 4266 , , , 40404 5515 4267 147 147 CD 40404 5515 4268 erosion erosion NN 40404 5515 4269 , , , 40404 5515 4270 151 151 CD 40404 5515 4271 pebbles pebble NNS 40404 5515 4272 carved carve VBN 40404 5515 4273 by by IN 40404 5515 4274 , , , 40404 5515 4275 152 152 CD 40404 5515 4276 transportation transportation NN 40404 5515 4277 , , , 40404 5515 4278 145 145 CD 40404 5515 4279 Wisconsin Wisconsin NNP 40404 5515 4280 , , , 40404 5515 4281 15 15 CD 40404 5515 4282 , , , 40404 5515 4283 18 18 CD 40404 5515 4284 , , , 40404 5515 4285 70 70 CD 40404 5515 4286 , , , 40404 5515 4287 71 71 CD 40404 5515 4288 , , , 40404 5515 4289 90 90 CD 40404 5515 4290 , , , 40404 5515 4291 94 94 CD 40404 5515 4292 , , , 40404 5515 4293 422 422 CD 40404 5515 4294 , , , 40404 5515 4295 426 426 CD 40404 5515 4296 Wisconsin Wisconsin NNP 40404 5515 4297 formation formation NN 40404 5515 4298 , , , 40404 5515 4299 429 429 CD 40404 5515 4300 , , , 40404 5515 4301 431 431 CD 40404 5515 4302 Wyoming Wyoming NNP 40404 5515 4303 , , , 40404 5515 4304 50 50 CD 40404 5515 4305 , , , 40404 5515 4306 98 98 CD 40404 5515 4307 , , , 40404 5515 4308 371 371 CD 40404 5515 4309 Yahtse Yahtse NNP 40404 5515 4310 River River NNP 40404 5515 4311 , , , 40404 5515 4312 131 131 CD 40404 5515 4313 Yellow Yellow NNP 40404 5515 4314 Sea Sea NNP 40404 5515 4315 , , , 40404 5515 4316 151 151 CD 40404 5515 4317 , , , 40404 5515 4318 170 170 CD 40404 5515 4319 Yellowstone Yellowstone NNP 40404 5515 4320 canyon canyon NN 40404 5515 4321 , , , 40404 5515 4322 74 74 CD 40404 5515 4323 Yellowstone Yellowstone NNP 40404 5515 4324 National National NNP 40404 5515 4325 Park Park NNP 40404 5515 4326 , , , 40404 5515 4327 50 50 CD 40404 5515 4328 , , , 40404 5515 4329 51 51 CD 40404 5515 4330 , , , 40404 5515 4331 52 52 CD 40404 5515 4332 , , , 40404 5515 4333 260 260 CD 40404 5515 4334 , , , 40404 5515 4335 261 261 CD 40404 5515 4336 , , , 40404 5515 4337 263 263 CD 40404 5515 4338 , , , 40404 5515 4339 269 269 CD 40404 5515 4340 , , , 40404 5515 4341 400 400 CD 40404 5515 4342 Yosemite Yosemite NNP 40404 5515 4343 , , , 40404 5515 4344 403 403 CD 40404 5515 4345 Zeuglodon Zeuglodon NNP 40404 5515 4346 , , , 40404 5515 4347 414 414 CD 40404 5515 4348 Zone Zone NNP 40404 5515 4349 of of IN 40404 5515 4350 cementation cementation NN 40404 5515 4351 , , , 40404 5515 4352 49 49 CD 40404 5515 4353 , , , 40404 5515 4354 180 180 CD 40404 5515 4355 Zone Zone NNP 40404 5515 4356 of of IN 40404 5515 4357 solution solution NN 40404 5515 4358 , , , 40404 5515 4359 45 45 CD 40404 5515 4360 Zones zone NNS 40404 5515 4361 of of IN 40404 5515 4362 flow flow NN 40404 5515 4363 and and CC 40404 5515 4364 of of IN 40404 5515 4365 fracture fracture NN 40404 5515 4366 , , , 40404 5515 4367 207 207 CD 40404 5515 4368 * * NFP 40404 5515 4369 * * NFP 40404 5515 4370 * * NFP 40404 5515 4371 * * NFP 40404 5515 4372 * * NFP 40404 5515 4373 ANNOUNCEMENTS ANNOUNCEMENTS NNP 40404 5515 4374 = = SYM 40404 5515 4375 = = SYM 40404 5515 4376 = = SYM 40404 5515 4377 = = SYM 40404 5515 4378 = = SYM 40404 5515 4379 = = SYM 40404 5515 4380 = = SYM 40404 5515 4381 = = SYM 40404 5515 4382 = = SYM 40404 5515 4383 = = SYM 40404 5515 4384 = = SYM 40404 5515 4385 = = SYM 40404 5515 4386 = = SYM 40404 5515 4387 = = SYM 40404 5515 4388 = = SYM 40404 5515 4389 = = SYM 40404 5515 4390 = = SYM 40404 5515 4391 = = SYM 40404 5515 4392 = = SYM 40404 5515 4393 = = SYM 40404 5515 4394 = = SYM 40404 5515 4395 = = SYM 40404 5515 4396 = = SYM 40404 5515 4397 = = SYM 40404 5515 4398 = = SYM 40404 5515 4399 = = SYM 40404 5515 4400 = = SYM 40404 5515 4401 = = SYM 40404 5515 4402 = = SYM 40404 5515 4403 = = SYM 40404 5515 4404 = = SYM 40404 5515 4405 = = SYM 40404 5515 4406 = = SYM 40404 5515 4407 = = SYM 40404 5515 4408 = = SYM 40404 5515 4409 = = SYM 40404 5515 4410 = = SYM 40404 5515 4411 = = SYM 40404 5515 4412 = = SYM 40404 5515 4413 = = SYM 40404 5515 4414 = = SYM 40404 5515 4415 = = SYM 40404 5515 4416 = = SYM 40404 5515 4417 = = SYM 40404 5515 4418 = = SYM 40404 5515 4419 = = SYM 40404 5515 4420 = = SYM 40404 5515 4421 = = SYM 40404 5515 4422 = = SYM 40404 5515 4423 = = SYM 40404 5515 4424 = = SYM 40404 5515 4425 = = SYM 40404 5515 4426 = = SYM 40404 5515 4427 = = SYM 40404 5515 4428 = = SYM 40404 5515 4429 = = SYM 40404 5515 4430 = = SYM 40404 5515 4431 = = SYM 40404 5515 4432 = = SYM 40404 5515 4433 = = SYM 40404 5515 4434 = = SYM 40404 5515 4435 = = SYM 40404 5515 4436 = = NFP 40404 5515 4437 = = NFP 40404 5515 4438 = = SYM 40404 5515 4439 TEXT text NN 40404 5515 4440 BOOKS book NNS 40404 5515 4441 ON on IN 40404 5515 4442 SCIENCE SCIENCE NNP 40404 5515 4443 FOR for IN 40404 5515 4444 HIGHER HIGHER NNP 40404 5515 4445 SCHOOLS school NNS 40404 5515 4446 AND and CC 40404 5515 4447 COLLEGES COLLEGES NNP 40404 5515 4448 _ _ NNP 40404 5515 4449 List List NNP 40404 5515 4450 _ _ NNP 40404 5515 4451 Mailing Mailing NNP 40404 5515 4452 price price NN 40404 5515 4453 _ _ NNP 40404 5515 4454 price price NN 40404 5515 4455 _ _ NNP 40404 5515 4456 Bergen Bergen NNP 40404 5515 4457 's 's POS 40404 5515 4458 Elements Elements NNPS 40404 5515 4459 of of IN 40404 5515 4460 Botany Botany NNP 40404 5515 4461 . . . 40404 5516 1 ( ( -LRB- 40404 5516 2 Revised Revised NNP 40404 5516 3 Edition Edition NNP 40404 5516 4 ) ) -RRB- 40404 5516 5 $ $ $ 40404 5516 6 1.30 1.30 CD 40404 5516 7 $ $ $ 40404 5516 8 1.45 1.45 CD 40404 5516 9 Bergen Bergen NNP 40404 5516 10 's 's POS 40404 5516 11 Foundations Foundations NNPS 40404 5516 12 of of IN 40404 5516 13 Botany Botany NNP 40404 5516 14 1.50 1.50 CD 40404 5516 15 1.70 1.70 CD 40404 5516 16 Blaisdell Blaisdell NNP 40404 5516 17 's 's POS 40404 5516 18 Life Life NNP 40404 5516 19 and and CC 40404 5516 20 Health Health NNP 40404 5516 21 .90 .90 CD 40404 5516 22 1.00 1.00 CD 40404 5516 23 Blaisdell Blaisdell NNP 40404 5516 24 's 's POS 40404 5516 25 Practical Practical NNP 40404 5516 26 Physiology Physiology NNP 40404 5516 27 1.10 1.10 CD 40404 5516 28 1.20 1.20 CD 40404 5516 29 Brown Brown NNP 40404 5516 30 's 's POS 40404 5516 31 Physiology Physiology NNP 40404 5516 32 for for IN 40404 5516 33 the the DT 40404 5516 34 Laboratory Laboratory NNP 40404 5516 35 .75 .75 . 40404 5516 36 .85 .85 NFP 40404 5516 37 Byrd Byrd NNP 40404 5516 38 's 's POS 40404 5516 39 Laboratory Laboratory NNP 40404 5516 40 Manual Manual NNP 40404 5516 41 in in IN 40404 5516 42 Astronomy Astronomy NNP 40404 5516 43 1.25 1.25 CD 40404 5516 44 1.35 1.35 CD 40404 5516 45 Davis Davis NNP 40404 5516 46 ' ' POS 40404 5516 47 Elementary Elementary NNP 40404 5516 48 Meteorology Meteorology NNP 40404 5516 49 2.50 2.50 CD 40404 5516 50 2.70 2.70 CD 40404 5516 51 Davis Davis NNP 40404 5516 52 ' ' POS 40404 5516 53 Elementary Elementary NNP 40404 5516 54 Physical Physical NNP 40404 5516 55 Geography Geography NNP 40404 5516 56 1.25 1.25 CD 40404 5516 57 1.40 1.40 CD 40404 5516 58 Davis Davis NNP 40404 5516 59 ' ' POS 40404 5516 60 Physical Physical NNP 40404 5516 61 Geography Geography NNP 40404 5516 62 1.25 1.25 CD 40404 5516 63 1.40 1.40 CD 40404 5516 64 Dennis Dennis NNP 40404 5516 65 and and CC 40404 5516 66 Whittelsey Whittelsey NNP 40404 5516 67 's 's POS 40404 5516 68 Qualitative Qualitative NNP 40404 5516 69 Analysis Analysis NNP 40404 5516 70 1.00 1.00 CD 40404 5516 71 1.10 1.10 CD 40404 5516 72 Dolbear Dolbear NNP 40404 5516 73 's 's POS 40404 5516 74 First First NNP 40404 5516 75 Principles Principles NNPS 40404 5516 76 of of IN 40404 5516 77 Natural Natural NNP 40404 5516 78 Philosophy Philosophy NNP 40404 5516 79 1.00 1.00 CD 40404 5516 80 1.10 1.10 CD 40404 5516 81 Evans Evans NNP 40404 5516 82 ' ' POS 40404 5516 83 Introductory introductory JJ 40404 5516 84 Course course NN 40404 5516 85 in in IN 40404 5516 86 Quantitative Quantitative NNP 40404 5516 87 Chemical Chemical NNP 40404 5516 88 Analysis Analysis NNP 40404 5516 89 .50 .50 NFP 40404 5516 90 .55 .55 NFP 40404 5516 91 Frost Frost NNP 40404 5516 92 's 's POS 40404 5516 93 Scheiner Scheiner NNP 40404 5516 94 's 's POS 40404 5516 95 Astronomical Astronomical NNP 40404 5516 96 Spectroscopy Spectroscopy NNP 40404 5516 97 4.75 4.75 CD 40404 5516 98 5.00 5.00 CD 40404 5516 99 Gage Gage NNP 40404 5516 100 's 's POS 40404 5516 101 Principles Principles NNPS 40404 5516 102 of of IN 40404 5516 103 Physics physics NN 40404 5516 104 1.30 1.30 CD 40404 5516 105 1.45 1.45 CD 40404 5516 106 Gage Gage NNP 40404 5516 107 's 's POS 40404 5516 108 Elements Elements NNPS 40404 5516 109 of of IN 40404 5516 110 Physics Physics NNP 40404 5516 111 . . . 40404 5517 1 ( ( -LRB- 40404 5517 2 Revised Revised NNP 40404 5517 3 Edition Edition NNP 40404 5517 4 ) ) -RRB- 40404 5517 5 1.12 1.12 CD 40404 5517 6 1.20 1.20 CD 40404 5517 7 Gage Gage NNP 40404 5517 8 's 's POS 40404 5517 9 Physical physical JJ 40404 5517 10 Experiments experiment NNS 40404 5517 11 .35 .35 NFP 40404 5517 12 .45 .45 NFP 40404 5517 13 Gage Gage NNP 40404 5517 14 's 's POS 40404 5517 15 Physical Physical NNP 40404 5517 16 Laboratory Laboratory NNP 40404 5517 17 Manual Manual NNP 40404 5517 18 and and CC 40404 5517 19 Notebook Notebook NNP 40404 5517 20 .35 .35 CD 40404 5517 21 .45 .45 NFP 40404 5517 22 Gage Gage NNP 40404 5517 23 's 's POS 40404 5517 24 Introduction introduction NN 40404 5517 25 to to IN 40404 5517 26 Physical Physical NNP 40404 5517 27 Science Science NNP 40404 5517 28 1.00 1.00 CD 40404 5517 29 1.10 1.10 CD 40404 5517 30 Gage Gage NNP 40404 5517 31 's 's POS 40404 5517 32 Introduction introduction NN 40404 5517 33 to to IN 40404 5517 34 Physical Physical NNP 40404 5517 35 Science Science NNP 40404 5517 36 . . . 40404 5518 1 ( ( -LRB- 40404 5518 2 Revised revise VBN 40404 5518 3 ) ) -RRB- 40404 5518 4 1.00 1.00 CD 40404 5518 5 1.10 1.10 CD 40404 5518 6 Hastings Hastings NNP 40404 5518 7 and and CC 40404 5518 8 Beach Beach NNP 40404 5518 9 's 's POS 40404 5518 10 General General NNP 40404 5518 11 Physics Physics NNP 40404 5518 12 2.75 2.75 CD 40404 5518 13 2.95 2.95 CD 40404 5518 14 Higgins higgin NNS 40404 5518 15 ' ' POS 40404 5518 16 Lessons Lessons NNPS 40404 5518 17 in in IN 40404 5518 18 Physics physics NN 40404 5518 19 .90 .90 CD 40404 5518 20 1.00 1.00 CD 40404 5518 21 Lincoln Lincoln NNP 40404 5518 22 's 's POS 40404 5518 23 Hygienic Hygienic NNP 40404 5518 24 Physiology Physiology NNP 40404 5518 25 .80 .80 NFP 40404 5518 26 .90 .90 NFP 40404 5518 27 Meier Meier NNP 40404 5518 28 's 's POS 40404 5518 29 Herbarium Herbarium NNP 40404 5518 30 and and CC 40404 5518 31 Plant Plant NNP 40404 5518 32 Description Description NNP 40404 5518 33 . . . 40404 5519 1 With with IN 40404 5519 2 directions direction NNS 40404 5519 3 for for IN 40404 5519 4 collecting collect VBG 40404 5519 5 , , , 40404 5519 6 pressing press VBG 40404 5519 7 , , , 40404 5519 8 and and CC 40404 5519 9 mounting mount VBG 40404 5519 10 specimens specimen NNS 40404 5519 11 .60 .60 CD 40404 5519 12 .70 .70 CD 40404 5519 13 Moore Moore NNP 40404 5519 14 's 's POS 40404 5519 15 Laboratory Laboratory NNP 40404 5519 16 Directions Directions NNPS 40404 5519 17 for for IN 40404 5519 18 Beginners Beginners NNPS 40404 5519 19 in in IN 40404 5519 20 Bacteriology Bacteriology NNP 40404 5519 21 1.00 1.00 CD 40404 5519 22 1.05 1.05 CD 40404 5519 23 Nichols Nichols NNP 40404 5519 24 , , , 40404 5519 25 Smith Smith NNP 40404 5519 26 , , , 40404 5519 27 and and CC 40404 5519 28 Turton Turton NNP 40404 5519 29 's 's POS 40404 5519 30 Manual Manual NNP 40404 5519 31 of of IN 40404 5519 32 Experimental Experimental NNP 40404 5519 33 Physics Physics NNP 40404 5519 34 . . . 40404 5520 1 1.00 1.00 CD 40404 5520 2 .90 .90 CD 40404 5520 3 Pratt Pratt NNP 40404 5520 4 's 's POS 40404 5520 5 Invertebrate Invertebrate NNP 40404 5520 6 Zoölogy Zoölogy NNP 40404 5520 7 . . . 40404 5521 1 1.25 1.25 CD 40404 5521 2 1.35 1.35 CD 40404 5521 3 Sabine Sabine NNP 40404 5521 4 's 's POS 40404 5521 5 Laboratory Laboratory NNP 40404 5521 6 Course course NN 40404 5521 7 in in IN 40404 5521 8 Physical Physical NNP 40404 5521 9 Measurements Measurements NNPS 40404 5521 10 1.25 1.25 CD 40404 5521 11 1.35 1.35 CD 40404 5521 12 Sellers Sellers NNPS 40404 5521 13 ' ' POS 40404 5521 14 Elementary Elementary NNP 40404 5521 15 Treatise Treatise NNP 40404 5521 16 on on IN 40404 5521 17 Qualitative Qualitative NNP 40404 5521 18 Chemical Chemical NNP 40404 5521 19 Analysis Analysis NNP 40404 5521 20 .75 .75 . 40404 5521 21 .80 .80 NFP 40404 5521 22 Snyder Snyder NNP 40404 5521 23 and and CC 40404 5521 24 Palmer Palmer NNP 40404 5521 25 's 's POS 40404 5521 26 One one CD 40404 5521 27 Thousand thousand CD 40404 5521 28 Problems Problems NNPS 40404 5521 29 in in IN 40404 5521 30 Physics Physics NNP 40404 5521 31 .50 .50 NFP 40404 5521 32 .55 .55 NFP 40404 5521 33 Stone Stone NNP 40404 5521 34 's 's POS 40404 5521 35 Experimental Experimental NNP 40404 5521 36 Physics Physics NNP 40404 5521 37 1.00 1.00 CD 40404 5521 38 1.10 1.10 CD 40404 5521 39 Thorp Thorp NNP 40404 5521 40 's 's POS 40404 5521 41 Inorganic Inorganic NNP 40404 5521 42 Chemical Chemical NNP 40404 5521 43 Preparations Preparations NNPS 40404 5521 44 1.50 1.50 CD 40404 5521 45 1.60 1.60 CD 40404 5521 46 Upton Upton NNP 40404 5521 47 's 's POS 40404 5521 48 Star Star NNP 40404 5521 49 Atlas Atlas NNP 40404 5521 50 2.00 2.00 CD 40404 5521 51 2.15 2.15 CD 40404 5521 52 Ward Ward NNP 40404 5521 53 's 's POS 40404 5521 54 Practical Practical NNP 40404 5521 55 Exercises Exercises NNPS 40404 5521 56 in in IN 40404 5521 57 Elementary Elementary NNP 40404 5521 58 Meteorology Meteorology NNP 40404 5521 59 1.12 1.12 CD 40404 5521 60 1.25 1.25 CD 40404 5521 61 Wentworth Wentworth NNP 40404 5521 62 and and CC 40404 5521 63 Hill Hill NNP 40404 5521 64 's 's POS 40404 5521 65 Text Text NNP 40404 5521 66 - - HYPH 40404 5521 67 Book Book NNP 40404 5521 68 of of IN 40404 5521 69 Physics Physics NNP 40404 5521 70 1.15 1.15 CD 40404 5521 71 1.25 1.25 CD 40404 5521 72 Wentworth Wentworth NNP 40404 5521 73 and and CC 40404 5521 74 Hill Hill NNP 40404 5521 75 's 's POS 40404 5521 76 Laboratory Laboratory NNP 40404 5521 77 Exercises Exercises NNPS 40404 5521 78 in in IN 40404 5521 79 Elementary Elementary NNP 40404 5521 80 Physics Physics NNP 40404 5521 81 .25 .25 NFP 40404 5521 82 .27 .27 NFP 40404 5521 83 White White NNP 40404 5521 84 's 's POS 40404 5521 85 Elementary Elementary NNP 40404 5521 86 Chemistry Chemistry NNP 40404 5521 87 1.00 1.00 CD 40404 5521 88 1.10 1.10 CD 40404 5521 89 Williams Williams NNP 40404 5521 90 ' ' POS 40404 5521 91 Chemical Chemical NNP 40404 5521 92 Experiments Experiments NNPS 40404 5521 93 .60 .60 NFP 40404 5521 94 .50 .50 NFP 40404 5521 95 Williams Williams NNP 40404 5521 96 ' ' POS 40404 5521 97 Chemical Chemical NNP 40404 5521 98 Exercises Exercises NNPS 40404 5521 99 .35 .35 CD 40404 5521 100 .30 .30 NFP 40404 5521 101 Williams Williams NNP 40404 5521 102 ' ' POS 40404 5521 103 Elements Elements NNPS 40404 5521 104 of of IN 40404 5521 105 Chemistry Chemistry NNP 40404 5521 106 1.10 1.10 CD 40404 5521 107 1.20 1.20 CD 40404 5521 108 Williams Williams NNP 40404 5521 109 ' ' POS 40404 5521 110 Introduction introduction NN 40404 5521 111 to to IN 40404 5521 112 Chemical Chemical NNP 40404 5521 113 Science Science NNP 40404 5521 114 .80 .80 NFP 40404 5521 115 .90 .90 NFP 40404 5521 116 Williams Williams NNP 40404 5521 117 ' ' POS 40404 5521 118 Laboratory Laboratory NNP 40404 5521 119 Manual Manual NNP 40404 5521 120 of of IN 40404 5521 121 Inorganic Inorganic NNP 40404 5521 122 Chemistry Chemistry NNP 40404 5521 123 .35 .35 CD 40404 5521 124 .30 .30 NFP 40404 5521 125 Williams Williams NNP 40404 5521 126 ' ' POS 40404 5521 127 Laboratory Laboratory NNP 40404 5521 128 Manual Manual NNP 40404 5521 129 of of IN 40404 5521 130 General General NNP 40404 5521 131 Chemistry Chemistry NNP 40404 5521 132 .25 .25 NFP 40404 5521 133 .30 .30 NFP 40404 5521 134 Young Young NNP 40404 5521 135 's 's POS 40404 5521 136 Elements Elements NNPS 40404 5521 137 of of IN 40404 5521 138 Astronomy Astronomy NNP 40404 5521 139 1.60 1.60 CD 40404 5521 140 1.75 1.75 CD 40404 5521 141 Young Young NNP 40404 5521 142 's 's POS 40404 5521 143 General General NNP 40404 5521 144 Astronomy Astronomy NNP 40404 5521 145 2.75 2.75 CD 40404 5521 146 3.00 3.00 CD 40404 5521 147 Young Young NNP 40404 5521 148 's 's POS 40404 5521 149 Lessons Lessons NNPS 40404 5521 150 in in IN 40404 5521 151 Astronomy Astronomy NNP 40404 5521 152 . . . 40404 5522 1 ( ( -LRB- 40404 5522 2 Revised Revised NNP 40404 5522 3 Edition Edition NNP 40404 5522 4 ) ) -RRB- 40404 5522 5 1.25 1.25 CD 40404 5522 6 1.40 1.40 CD 40404 5522 7 Young Young NNP 40404 5522 8 's 's POS 40404 5522 9 Manual Manual NNP 40404 5522 10 of of IN 40404 5522 11 Astronomy Astronomy NNP 40404 5522 12 2.25 2.25 CD 40404 5522 13 2.45 2.45 CD 40404 5522 14 = = SYM 40404 5522 15 = = SYM 40404 5522 16 = = SYM 40404 5522 17 = = SYM 40404 5522 18 = = SYM 40404 5522 19 = = SYM 40404 5522 20 = = SYM 40404 5522 21 = = SYM 40404 5522 22 = = SYM 40404 5522 23 = = SYM 40404 5522 24 = = SYM 40404 5522 25 = = SYM 40404 5522 26 = = SYM 40404 5522 27 = = SYM 40404 5522 28 = = SYM 40404 5522 29 = = SYM 40404 5522 30 = = SYM 40404 5522 31 = = SYM 40404 5522 32 = = SYM 40404 5522 33 = = SYM 40404 5522 34 = = SYM 40404 5522 35 = = SYM 40404 5522 36 = = SYM 40404 5522 37 = = SYM 40404 5522 38 = = SYM 40404 5522 39 = = SYM 40404 5522 40 = = SYM 40404 5522 41 = = SYM 40404 5522 42 = = SYM 40404 5522 43 = = SYM 40404 5522 44 = = SYM 40404 5522 45 = = SYM 40404 5522 46 = = SYM 40404 5522 47 = = SYM 40404 5522 48 = = SYM 40404 5522 49 = = SYM 40404 5522 50 = = SYM 40404 5522 51 = = SYM 40404 5522 52 = = SYM 40404 5522 53 = = SYM 40404 5522 54 = = SYM 40404 5522 55 = = SYM 40404 5522 56 = = SYM 40404 5522 57 = = SYM 40404 5522 58 = = SYM 40404 5522 59 = = SYM 40404 5522 60 = = SYM 40404 5522 61 = = SYM 40404 5522 62 = = SYM 40404 5522 63 = = SYM 40404 5522 64 = = SYM 40404 5522 65 = = SYM 40404 5522 66 = = SYM 40404 5522 67 = = SYM 40404 5522 68 = = SYM 40404 5522 69 = = SYM 40404 5522 70 = = SYM 40404 5522 71 = = SYM 40404 5522 72 = = SYM 40404 5522 73 = = SYM 40404 5522 74 = = SYM 40404 5522 75 = = SYM 40404 5522 76 = = SYM 40404 5522 77 = = SYM 40404 5522 78 = = SYM 40404 5522 79 GINN GINN NNP 40404 5522 80 & & CC 40404 5522 81 COMPANY COMPANY NNP 40404 5522 82 PUBLISHERS PUBLISHERS NNP 40404 5522 83 Davis Davis NNP 40404 5522 84 ' ' POS 40404 5522 85 Elementary Elementary NNP 40404 5522 86 Physical Physical NNP 40404 5522 87 Geography Geography NNP 40404 5522 88 = = SYM 40404 5522 89 = = SYM 40404 5522 90 = = NFP 40404 5522 91 = = SYM 40404 5522 92 = = SYM 40404 5522 93 = = SYM 40404 5522 94 = = SYM 40404 5522 95 = = SYM 40404 5522 96 = = SYM 40404 5522 97 = = SYM 40404 5522 98 = = SYM 40404 5522 99 = = SYM 40404 5522 100 = = SYM 40404 5522 101 = = SYM 40404 5522 102 = = SYM 40404 5522 103 = = SYM 40404 5522 104 = = SYM 40404 5522 105 = = SYM 40404 5522 106 = = SYM 40404 5522 107 = = SYM 40404 5522 108 = = SYM 40404 5522 109 = = SYM 40404 5522 110 = = SYM 40404 5522 111 = = SYM 40404 5522 112 = = SYM 40404 5522 113 = = SYM 40404 5522 114 = = SYM 40404 5522 115 = = SYM 40404 5522 116 = = SYM 40404 5522 117 = = SYM 40404 5522 118 = = SYM 40404 5522 119 = = SYM 40404 5522 120 = = SYM 40404 5522 121 = = SYM 40404 5522 122 = = SYM 40404 5522 123 = = SYM 40404 5522 124 = = SYM 40404 5522 125 = = SYM 40404 5522 126 = = SYM 40404 5522 127 = = SYM 40404 5522 128 = = SYM 40404 5522 129 = = SYM 40404 5522 130 = = SYM 40404 5522 131 = = SYM 40404 5522 132 = = SYM 40404 5522 133 = = SYM 40404 5522 134 = = SYM 40404 5522 135 = = SYM 40404 5522 136 = = SYM 40404 5522 137 = = SYM 40404 5522 138 = = SYM 40404 5522 139 = = SYM 40404 5522 140 = = SYM 40404 5522 141 = = SYM 40404 5522 142 = = SYM 40404 5522 143 = = SYM 40404 5522 144 = = SYM 40404 5522 145 = = SYM 40404 5522 146 = = SYM 40404 5522 147 = = SYM 40404 5522 148 = = SYM 40404 5522 149 = = SYM 40404 5522 150 = = SYM 40404 5522 151 = = NFP 40404 5522 152 = = NFP 40404 5522 153 By by IN 40404 5522 154 WILLIAM WILLIAM NNP 40404 5522 155 MORRIS MORRIS NNP 40404 5522 156 DAVIS DAVIS NNP 40404 5522 157 _ _ NNP 40404 5522 158 Author author NN 40404 5522 159 of of IN 40404 5522 160 Davis Davis NNP 40404 5522 161 ' ' POS 40404 5522 162 " " `` 40404 5522 163 Physical Physical NNP 40404 5522 164 Geography Geography NNP 40404 5522 165 " " '' 40404 5522 166 and and CC 40404 5522 167 Professor Professor NNP 40404 5522 168 of of IN 40404 5522 169 Geology Geology NNP 40404 5522 170 in in IN 40404 5522 171 Harvard Harvard NNP 40404 5522 172 University University NNP 40404 5522 173 _ _ NNP 40404 5522 174 12mo 12mo NN 40404 5522 175 . . . 40404 5523 1 Cloth cloth NN 40404 5523 2 . . . 40404 5524 1 viii viii RB 40404 5524 2 + + CC 40404 5524 3 401 401 CD 40404 5524 4 pages page NNS 40404 5524 5 + + SYM 40404 5524 6 6 6 CD 40404 5524 7 color color NN 40404 5524 8 charts chart NNS 40404 5524 9 + + SYM 40404 5524 10 16 16 CD 40404 5524 11 pages page NNS 40404 5524 12 of of IN 40404 5524 13 maps map NNS 40404 5524 14 . . . 40404 5525 1 Illustrated Illustrated NNP 40404 5525 2 . . . 40404 5526 1 List list NN 40404 5526 2 price price NN 40404 5526 3 , , , 40404 5526 4 $ $ $ 40404 5526 5 1.25 1.25 CD 40404 5526 6 . . . 40404 5527 1 The the DT 40404 5527 2 " " `` 40404 5527 3 Elementary Elementary NNP 40404 5527 4 Physical Physical NNP 40404 5527 5 Geography Geography NNP 40404 5527 6 " " '' 40404 5527 7 is be VBZ 40404 5527 8 a a DT 40404 5527 9 new new JJ 40404 5527 10 book book NN 40404 5527 11 by by IN 40404 5527 12 Professor Professor NNP 40404 5527 13 W. W. NNP 40404 5527 14 M. M. NNP 40404 5527 15 Davis Davis NNP 40404 5527 16 , , , 40404 5527 17 the the DT 40404 5527 18 first first JJ 40404 5527 19 authority authority NN 40404 5527 20 in in IN 40404 5527 21 the the DT 40404 5527 22 United United NNP 40404 5527 23 States States NNP 40404 5527 24 in in IN 40404 5527 25 the the DT 40404 5527 26 field field NN 40404 5527 27 of of IN 40404 5527 28 physical physical JJ 40404 5527 29 geography geography NN 40404 5527 30 . . . 40404 5528 1 It -PRON- PRP 40404 5528 2 retains retain VBZ 40404 5528 3 the the DT 40404 5528 4 characteristic characteristic JJ 40404 5528 5 features feature NNS 40404 5528 6 of of IN 40404 5528 7 the the DT 40404 5528 8 author author NN 40404 5528 9 's 's POS 40404 5528 10 earlier early JJR 40404 5528 11 work work NN 40404 5528 12 , , , 40404 5528 13 " " '' 40404 5528 14 Physical Physical NNP 40404 5528 15 Geography Geography NNP 40404 5528 16 , , , 40404 5528 17 " " '' 40404 5528 18 but but CC 40404 5528 19 is be VBZ 40404 5528 20 much much 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be VBZ 40404 5531 4 not not RB 40404 5531 5 presented present VBN 40404 5531 6 merely merely RB 40404 5531 7 as as IN 40404 5531 8 an an DT 40404 5531 9 afterthought afterthought NN 40404 5531 10 in in IN 40404 5531 11 a a DT 40404 5531 12 detached detached JJ 40404 5531 13 chapter chapter NN 40404 5531 14 at at IN 40404 5531 15 the the DT 40404 5531 16 end end NN 40404 5531 17 of of IN 40404 5531 18 the the DT 40404 5531 19 book book NN 40404 5531 20 ; ; : 40404 5531 21 it -PRON- PRP 40404 5531 22 accompanies accompany VBZ 40404 5531 23 the the DT 40404 5531 24 presentation presentation NN 40404 5531 25 of of IN 40404 5531 26 the the DT 40404 5531 27 facts fact NNS 40404 5531 28 themselves -PRON- PRP 40404 5531 29 . . . 40404 5532 1 The the DT 40404 5532 2 chapter chapter NN 40404 5532 3 on on IN 40404 5532 4 the the DT 40404 5532 5 Atmosphere Atmosphere NNP 40404 5532 6 has have VBZ 40404 5532 7 been be VBN 40404 5532 8 considerably considerably RB 40404 5532 9 expanded expand VBN 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NNP 40404 5556 8 RUSSELL RUSSELL NNP 40404 5556 9 , , , 40404 5556 10 Professor Professor NNP 40404 5556 11 of of IN 40404 5556 12 Geology Geology NNP 40404 5556 13 in in IN 40404 5556 14 the the DT 40404 5556 15 University University NNP 40404 5556 16 of of IN 40404 5556 17 Michigan Michigan NNP 40404 5556 18 Author Author NNP 40404 5556 19 of of IN 40404 5556 20 " " `` 40404 5556 21 Lakes Lakes NNP 40404 5556 22 of of IN 40404 5556 23 North North NNP 40404 5556 24 America America NNP 40404 5556 25 " " '' 40404 5556 26 8vo 8vo NN 40404 5556 27 . . . 40404 5557 1 Cloth cloth NN 40404 5557 2 . . . 40404 5558 1 x x SYM 40404 5558 2 + + SYM 40404 5558 3 210 210 CD 40404 5558 4 pages page NNS 40404 5558 5 . . . 40404 5558 6 , , , 40404 5558 7 Illustrated Illustrated NNP 40404 5558 8 . . . 40404 5559 1 List list NN 40404 5559 2 price price NN 40404 5559 3 , , , 40404 5559 4 $ $ $ 40404 5559 5 1.75 1.75 CD 40404 5559 6 ; ; : 40404 5559 7 mailing mailing NN 40404 5559 8 price price NN 40404 5559 9 , , , 40404 5559 10 $ $ $ 40404 5559 11 1.90 1.90 CD 40404 5559 12 Recent recent JJ 40404 5559 13 explorations exploration NNS 40404 5559 14 have have VBP 40404 5559 15 shown show VBN 40404 5559 16 that that IN 40404 5559 17 North North NNP 40404 5559 18 America America NNP 40404 5559 19 contains contain VBZ 40404 5559 20 thousands thousand NNS 40404 5559 21 of of IN 40404 5559 22 glaciers glacier NNS 40404 5559 23 , , , 40404 5559 24 some some DT 40404 5559 25 of of IN 40404 5559 26 which which WDT 40404 5559 27 are be VBP 40404 5559 28 not not RB 40404 5559 29 only only RB 40404 5559 30 vastly vastly RB 40404 5559 31 larger large JJR 40404 5559 32 than than IN 40404 5559 33 any any DT 40404 5559 34 in in IN 40404 5559 35 Europe Europe NNP 40404 5559 36 , , , 40404 5559 37 but but CC 40404 5559 38 belong belong VBP 40404 5559 39 to to IN 40404 5559 40 types type NNS 40404 5559 41 of of IN 40404 5559 42 ice ice NN 40404 5559 43 bodies body NNS 40404 5559 44 not not RB 40404 5559 45 there there RB 40404 5559 46 represented represent VBN 40404 5559 47 . . . 40404 5560 1 In in IN 40404 5560 2 the the DT 40404 5560 3 study study NN 40404 5560 4 of of IN 40404 5560 5 the the DT 40404 5560 6 glaciers glacier NNS 40404 5560 7 of of IN 40404 5560 8 North North NNP 40404 5560 9 America America NNP 40404 5560 10 , , , 40404 5560 11 and and CC 40404 5560 12 especially especially RB 40404 5560 13 of of IN 40404 5560 14 those those DT 40404 5560 15 in in IN 40404 5560 16 Alaska Alaska NNP 40404 5560 17 , , , 40404 5560 18 Professor Professor NNP 40404 5560 19 Russell Russell NNP 40404 5560 20 has have VBZ 40404 5560 21 taken take VBN 40404 5560 22 an an DT 40404 5560 23 active active JJ 40404 5560 24 part part NN 40404 5560 25 ; ; : 40404 5560 26 and and CC 40404 5560 27 this this DT 40404 5560 28 book book NN 40404 5560 29 not not RB 40404 5560 30 only only RB 40404 5560 31 presents present VBZ 40404 5560 32 the the DT 40404 5560 33 results result NNS 40404 5560 34 of of IN 40404 5560 35 his -PRON- PRP$ 40404 5560 36 own own JJ 40404 5560 37 explorations exploration NNS 40404 5560 38 but but CC 40404 5560 39 also also RB 40404 5560 40 a a DT 40404 5560 41 condensed condensed JJ 40404 5560 42 and and CC 40404 5560 43 accurate accurate JJ 40404 5560 44 statement statement NN 40404 5560 45 of of IN 40404 5560 46 the the DT 40404 5560 47 present present JJ 40404 5560 48 status status NN 40404 5560 49 of of IN 40404 5560 50 glacial glacial JJ 40404 5560 51 investigations investigation NNS 40404 5560 52 . . . 40404 5561 1 Its -PRON- PRP$ 40404 5561 2 popular popular JJ 40404 5561 3 character character NN 40404 5561 4 and and CC 40404 5561 5 numerous numerous JJ 40404 5561 6 illustrations illustration NNS 40404 5561 7 will will MD 40404 5561 8 make make VB 40404 5561 9 it -PRON- PRP 40404 5561 10 of of IN 40404 5561 11 interest interest NN 40404 5561 12 to to IN 40404 5561 13 the the DT 40404 5561 14 general general JJ 40404 5561 15 reader reader NN 40404 5561 16 . . . 40404 5562 1 * * NFP 40404 5562 2 * * NFP 40404 5562 3 * * NFP 40404 5562 4 * * NFP 40404 5562 5 * * NFP 40404 5562 6 _ _ NNP 40404 5562 7 DEPARTMENT DEPARTMENT NNP 40404 5562 8 OF of IN 40404 5562 9 SPECIAL SPECIAL NNP 40404 5562 10 PUBLICATION PUBLICATION NNP 40404 5562 11 _ _ NNP 40404 5562 12 = = SYM 40404 5562 13 = = SYM 40404 5562 14 = = SYM 40404 5562 15 = = SYM 40404 5562 16 = = SYM 40404 5562 17 = = SYM 40404 5562 18 = = SYM 40404 5562 19 = = SYM 40404 5562 20 = = SYM 40404 5562 21 = = SYM 40404 5562 22 = = SYM 40404 5562 23 = = SYM 40404 5562 24 = = SYM 40404 5562 25 = = SYM 40404 5562 26 = = SYM 40404 5562 27 = = SYM 40404 5562 28 = = SYM 40404 5562 29 = = SYM 40404 5562 30 = = SYM 40404 5562 31 = = SYM 40404 5562 32 = = SYM 40404 5562 33 = = SYM 40404 5562 34 = = SYM 40404 5562 35 = = SYM 40404 5562 36 = = SYM 40404 5562 37 = = SYM 40404 5562 38 = = SYM 40404 5562 39 = = SYM 40404 5562 40 = = SYM 40404 5562 41 = = SYM 40404 5562 42 = = SYM 40404 5562 43 = = SYM 40404 5562 44 = = SYM 40404 5562 45 = = SYM 40404 5562 46 = = SYM 40404 5562 47 = = SYM 40404 5562 48 = = SYM 40404 5562 49 = = SYM 40404 5562 50 = = SYM 40404 5562 51 = = SYM 40404 5562 52 = = SYM 40404 5562 53 = = SYM 40404 5562 54 = = SYM 40404 5562 55 = = SYM 40404 5562 56 = = SYM 40404 5562 57 = = SYM 40404 5562 58 = = SYM 40404 5562 59 = = SYM 40404 5562 60 = = SYM 40404 5562 61 = = SYM 40404 5562 62 = = SYM 40404 5562 63 = = SYM 40404 5562 64 = = SYM 40404 5562 65 = = SYM 40404 5562 66 = = SYM 40404 5562 67 = = SYM 40404 5562 68 = = SYM 40404 5562 69 = = SYM 40404 5562 70 = = SYM 40404 5562 71 = = SYM 40404 5562 72 = = SYM 40404 5562 73 = = SYM 40404 5562 74 = = SYM 40404 5562 75 = = SYM 40404 5562 76 = = SYM 40404 5562 77 GINN GINN NNP 40404 5562 78 & & CC 40404 5562 79 COMPANY COMPANY NNP 40404 5562 80 PUBLISHERS PUBLISHERS NNP 40404 5562 81 * * NFP 40404 5562 82 * * NFP 40404 5562 83 * * NFP 40404 5562 84 * * NFP 40404 5562 85 * * NFP 40404 5562 86 Transcriber Transcriber NNP 40404 5562 87 's 's POS 40404 5562 88 Notes note NNS 40404 5562 89 This this DT 40404 5562 90 transcription transcription NN 40404 5562 91 was be VBD 40404 5562 92 derived derive VBN 40404 5562 93 from from IN 40404 5562 94 the the DT 40404 5562 95 1905 1905 CD 40404 5562 96 publication publication NN 40404 5562 97 obtained obtain VBN 40404 5562 98 from from IN 40404 5562 99 The the DT 40404 5562 100 Internet Internet NNP 40404 5562 101 Archive Archive NNP 40404 5562 102 . . . 40404 5563 1 As as IN 40404 5563 2 the the DT 40404 5563 3 Index Index NNP 40404 5563 4 of of IN 40404 5563 5 the the DT 40404 5563 6 original original JJ 40404 5563 7 1905 1905 CD 40404 5563 8 book book NN 40404 5563 9 is be VBZ 40404 5563 10 missing miss VBG 40404 5563 11 entries entry NNS 40404 5563 12 for for IN 40404 5563 13 U u NN 40404 5563 14 and and CC 40404 5563 15 V V NNP 40404 5563 16 , , , 40404 5563 17 the the DT 40404 5563 18 Index Index NNP 40404 5563 19 from from IN 40404 5563 20 the the DT 40404 5563 21 1921 1921 CD 40404 5563 22 version version NN 40404 5563 23 was be VBD 40404 5563 24 used use VBN 40404 5563 25 to to TO 40404 5563 26 add add VB 40404 5563 27 the the DT 40404 5563 28 missing miss VBG 40404 5563 29 sections section NNS 40404 5563 30 . . . 40404 5564 1 One one CD 40404 5564 2 error error NN 40404 5564 3 was be VBD 40404 5564 4 noted note VBN 40404 5564 5 in in IN 40404 5564 6 preparing prepare VBG 40404 5564 7 this this DT 40404 5564 8 revision revision NN 40404 5564 9 ( ( -LRB- 40404 5564 10 page page NN 40404 5564 11 493 493 CD 40404 5564 12 under under IN 40404 5564 13 Hudson Hudson NNP 40404 5564 14 River River NNP 40404 5564 15 should should MD 40404 5564 16 have have VB 40404 5564 17 been be VBN 40404 5564 18 417 417 CD 40404 5564 19 ) ) -RRB- 40404 5564 20 . . . 40404 5565 1 Several several JJ 40404 5565 2 hyphenated hyphenate VBN 40404 5565 3 vs. vs. IN 40404 5565 4 unhyphenated unhyphenated JJ 40404 5565 5 forms form NNS 40404 5565 6 were be VBD 40404 5565 7 standardized standardize VBN 40404 5565 8 to to IN 40404 5565 9 the the DT 40404 5565 10 most most RBS 40404 5565 11 prevalent prevalent JJ 40404 5565 12 . . . 40404 5566 1 Minor minor JJ 40404 5566 2 corrections correction NNS 40404 5566 3 were be VBD 40404 5566 4 made make VBN 40404 5566 5 where where WRB 40404 5566 6 periods period NNS 40404 5566 7 , , , 40404 5566 8 commas comma NNS 40404 5566 9 , , , 40404 5566 10 etc etc FW 40404 5566 11 . . . 40404 5567 1 were be VBD 40404 5567 2 missing miss VBG 40404 5567 3 . . . 40404 5568 1 A a DT 40404 5568 2 number number NN 40404 5568 3 of of IN 40404 5568 4 paragraphs paragraph NNS 40404 5568 5 which which WDT 40404 5568 6 were be VBD 40404 5568 7 split split VBN 40404 5568 8 by by IN 40404 5568 9 images image NNS 40404 5568 10 were be VBD 40404 5568 11 rejoined rejoin VBN 40404 5568 12 . . . 40404 5569 1 In in IN 40404 5569 2 some some DT 40404 5569 3 cases case NNS 40404 5569 4 , , , 40404 5569 5 the the DT 40404 5569 6 text text NN 40404 5569 7 was be VBD 40404 5569 8 moved move VBN 40404 5569 9 to to IN 40404 5569 10 the the DT 40404 5569 11 preceding precede VBG 40404 5569 12 or or CC 40404 5569 13 following follow VBG 40404 5569 14 page page NN 40404 5569 15 . . . 40404 5570 1 As as IN 40404 5570 2 ALL all DT 40404 5570 3 CAPS CAPS NNP 40404 5570 4 was be VBD 40404 5570 5 employed employ VBN 40404 5570 6 for for IN 40404 5570 7 the the DT 40404 5570 8 Chapter Chapter NNP 40404 5570 9 Titles Titles NNPS 40404 5570 10 in in IN 40404 5570 11 the the DT 40404 5570 12 original original JJ 40404 5570 13 book book NN 40404 5570 14 , , , 40404 5570 15 the the DT 40404 5570 16 small small JJ 40404 5570 17 caps cap NNS 40404 5570 18 subchapter subchapter VBP 40404 5570 19 headings heading NNS 40404 5570 20 and and CC 40404 5570 21 Figure Figure NNP 40404 5570 22 captions caption NNS 40404 5570 23 were be VBD 40404 5570 24 not not RB 40404 5570 25 converted convert VBN 40404 5570 26 to to IN 40404 5570 27 all all DT 40404 5570 28 caps cap NNS 40404 5570 29 . . . 40404 5571 1 The the DT 40404 5571 2 oe oe NN 40404 5571 3 ligature ligature NN 40404 5571 4 in in IN 40404 5571 5 Coelenterates Coelenterates NNPS 40404 5571 6 was be VBD 40404 5571 7 converted convert VBN 40404 5571 8 to to IN 40404 5571 9 " " `` 40404 5571 10 oe oe NN 40404 5571 11 " " '' 40404 5571 12 . . .