id	sid	tid	token	lemma	pos
xw42n586k0k	1	1	the	the	DET
xw42n586k0k	1	2	origin	origin	NOUN
xw42n586k0k	1	3	of	of	ADP
xw42n586k0k	1	4	carbonatites	carbonatite	NOUN
xw42n586k0k	1	5	and	and	CCONJ
xw42n586k0k	1	6	their	their	PRON
xw42n586k0k	1	7	associated	associated	ADJ
xw42n586k0k	1	8	alkaline	alkaline	NOUN
xw42n586k0k	1	9	silicate	silicate	PROPN
xw42n586k0k	1	10	rocks	rocks	PROPN
xw42n586k0k	1	11	has	have	AUX
xw42n586k0k	1	12	been	be	AUX
xw42n586k0k	1	13	linked	link	VERB
xw42n586k0k	1	14	to	to	ADP
xw42n586k0k	1	15	metasomatized	metasomatize	VERB
xw42n586k0k	1	16	upper	upper	ADJ
xw42n586k0k	1	17	mantle	mantle	PROPN
xw42n586k0k	1	18	sources	source	NOUN
xw42n586k0k	1	19	and	and	CCONJ
xw42n586k0k	1	20	related	relate	VERB
xw42n586k0k	1	21	to	to	ADP
xw42n586k0k	1	22	mantle	mantle	ADJ
xw42n586k0k	1	23	plume	plume	ADJ
xw42n586k0k	1	24	activity	activity	NOUN
xw42n586k0k	1	25	.	.	PUNCT
xw42n586k0k	2	1	however	however	ADV
xw42n586k0k	2	2	,	,	PUNCT
xw42n586k0k	2	3	the	the	DET
xw42n586k0k	2	4	lithospheric	lithospheric	ADJ
xw42n586k0k	2	5	or	or	CCONJ
xw42n586k0k	2	6	asthenospheric	asthenospheric	ADJ
xw42n586k0k	2	7	origin	origin	NOUN
xw42n586k0k	2	8	of	of	ADP
xw42n586k0k	2	9	the	the	DET
xw42n586k0k	2	10	carbon	carbon	NOUN
xw42n586k0k	2	11	contained	contain	VERB
xw42n586k0k	2	12	within	within	ADP
xw42n586k0k	2	13	mantle	mantle	NOUN
xw42n586k0k	2	14	-	-	PUNCT
xw42n586k0k	2	15	derived	derive	VERB
xw42n586k0k	2	16	carbonatite	carbonatite	NOUN
xw42n586k0k	2	17	melts	melt	NOUN
xw42n586k0k	2	18	is	be	AUX
xw42n586k0k	2	19	still	still	ADV
xw42n586k0k	2	20	under	under	ADP
xw42n586k0k	2	21	debate	debate	NOUN
xw42n586k0k	2	22	.	.	PUNCT
xw42n586k0k	3	1	in	in	ADP
xw42n586k0k	3	2	order	order	NOUN
xw42n586k0k	3	3	to	to	PART
xw42n586k0k	3	4	investigate	investigate	VERB
xw42n586k0k	3	5	this	this	PRON
xw42n586k0k	3	6	,	,	PUNCT
xw42n586k0k	3	7	carbonatite	carbonatite	ADJ
xw42n586k0k	3	8	samples	sample	NOUN
xw42n586k0k	3	9	from	from	ADP
xw42n586k0k	3	10	worldwide	worldwide	ADJ
xw42n586k0k	3	11	sources	source	NOUN
xw42n586k0k	3	12	have	have	AUX
xw42n586k0k	3	13	been	be	AUX
xw42n586k0k	3	14	analyzed	analyze	VERB
xw42n586k0k	3	15	for	for	ADP
xw42n586k0k	3	16	their	their	PRON
xw42n586k0k	3	17	stable	stable	ADJ
xw42n586k0k	3	18	c	c	PROPN
xw42n586k0k	3	19	and	and	CCONJ
xw42n586k0k	3	20	o	o	X
xw42n586k0k	3	21	isotope	isotope	NOUN
xw42n586k0k	3	22	ratios	ratio	NOUN
xw42n586k0k	3	23	and	and	CCONJ
xw42n586k0k	3	24	for	for	ADP
xw42n586k0k	3	25	the	the	DET
xw42n586k0k	3	26	first	first	ADJ
xw42n586k0k	3	27	time	time	NOUN
xw42n586k0k	3	28	,	,	PUNCT
xw42n586k0k	3	29	boron	boron	NOUN
xw42n586k0k	3	30	(	(	PUNCT
xw42n586k0k	3	31	b	b	NOUN
xw42n586k0k	3	32	)	)	PUNCT
xw42n586k0k	3	33	isotope	isotope	NOUN
xw42n586k0k	3	34	compositions	composition	NOUN
xw42n586k0k	3	35	.	.	PUNCT
xw42n586k0k	4	1	it	it	PRON
xw42n586k0k	4	2	is	be	AUX
xw42n586k0k	4	3	well	well	ADV
xw42n586k0k	4	4	documented	document	VERB
xw42n586k0k	4	5	that	that	SCONJ
xw42n586k0k	4	6	the	the	DET
xw42n586k0k	4	7	global	global	ADJ
xw42n586k0k	4	8	boron	boron	NOUN
xw42n586k0k	4	9	geochemical	geochemical	ADJ
xw42n586k0k	4	10	cycle	cycle	NOUN
xw42n586k0k	4	11	is	be	AUX
xw42n586k0k	4	12	closely	closely	ADV
xw42n586k0k	4	13	tied	tie	VERB
xw42n586k0k	4	14	to	to	ADP
xw42n586k0k	4	15	recycling	recycling	NOUN
xw42n586k0k	4	16	of	of	ADP
xw42n586k0k	4	17	geological	geological	ADJ
xw42n586k0k	4	18	material	material	NOUN
xw42n586k0k	4	19	via	via	ADP
xw42n586k0k	4	20	subduction	subduction	NOUN
xw42n586k0k	4	21	processes	process	NOUN
xw42n586k0k	4	22	.	.	PUNCT
xw42n586k0k	5	1	therefore	therefore	ADV
xw42n586k0k	5	2	,	,	PUNCT
xw42n586k0k	5	3	it	it	PRON
xw42n586k0k	5	4	is	be	AUX
xw42n586k0k	5	5	hypothesized	hypothesize	VERB
xw42n586k0k	5	6	that	that	SCONJ
xw42n586k0k	5	7	investigation	investigation	NOUN
xw42n586k0k	5	8	of	of	ADP
xw42n586k0k	5	9	boron	boron	NOUN
xw42n586k0k	5	10	isotope	isotope	PROPN
xw42n586k0k	5	11	systematics	systematic	NOUN
xw42n586k0k	5	12	of	of	ADP
xw42n586k0k	5	13	carbonatites	carbonatite	NOUN
xw42n586k0k	5	14	will	will	AUX
xw42n586k0k	5	15	aid	aid	VERB
xw42n586k0k	5	16	in	in	ADP
xw42n586k0k	5	17	testing	testing	NOUN
xw42n586k0k	5	18	for	for	ADP
xw42n586k0k	5	19	a	a	DET
xw42n586k0k	5	20	recycled	recycled	ADJ
xw42n586k0k	5	21	component	component	NOUN
xw42n586k0k	5	22	present	present	ADJ
xw42n586k0k	5	23	in	in	ADP
xw42n586k0k	5	24	carbonatite	carbonatite	ADJ
xw42n586k0k	5	25	magmas	magma	NOUN
xw42n586k0k	5	26	;	;	PUNCT
xw42n586k0k	5	27	this	this	PRON
xw42n586k0k	5	28	creates	create	VERB
xw42n586k0k	5	29	a	a	DET
xw42n586k0k	5	30	unique	unique	ADJ
xw42n586k0k	5	31	way	way	NOUN
xw42n586k0k	5	32	of	of	ADP
xw42n586k0k	5	33	evaluating	evaluate	VERB
xw42n586k0k	5	34	their	their	PRON
xw42n586k0k	5	35	mantle	mantle	NOUN
xw42n586k0k	5	36	sources	source	NOUN
xw42n586k0k	5	37	.	.	PUNCT
xw42n586k0k	6	1	carbonatites	carbonatite	NOUN
xw42n586k0k	6	2	investigated	investigate	VERB
xw42n586k0k	6	3	here	here	ADV
xw42n586k0k	6	4	span	span	NOUN
xw42n586k0k	6	5	a	a	DET
xw42n586k0k	6	6	wide	wide	ADJ
xw42n586k0k	6	7	range	range	NOUN
xw42n586k0k	6	8	of	of	ADP
xw42n586k0k	6	9	emplacement	emplacement	NOUN
xw42n586k0k	6	10	ages	age	NOUN
xw42n586k0k	6	11	(	(	PUNCT
xw42n586k0k	6	12	~40	~40	NUM
xw42n586k0k	6	13	ma	ma	PROPN
xw42n586k0k	6	14	to	to	ADP
xw42n586k0k	6	15	~2600	~2600	PROPN
xw42n586k0k	6	16	ma	ma	PROPN
xw42n586k0k	6	17	old	old	ADJ
xw42n586k0k	6	18	)	)	PUNCT
xw42n586k0k	6	19	,	,	PUNCT
xw42n586k0k	6	20	and	and	CCONJ
xw42n586k0k	6	21	therefore	therefore	ADV
xw42n586k0k	6	22	provide	provide	VERB
xw42n586k0k	6	23	insight	insight	NOUN
xw42n586k0k	6	24	into	into	ADP
xw42n586k0k	6	25	the	the	DET
xw42n586k0k	6	26	temporal	temporal	ADJ
xw42n586k0k	6	27	evolution	evolution	NOUN
xw42n586k0k	6	28	of	of	ADP
xw42n586k0k	6	29	their	their	PRON
xw42n586k0k	6	30	mantle	mantle	NOUN
xw42n586k0k	6	31	sources	source	NOUN
xw42n586k0k	6	32	.	.	PUNCT
xw42n586k0k	7	1	results	result	NOUN
xw42n586k0k	7	2	show	show	VERB
xw42n586k0k	7	3	that	that	SCONJ
xw42n586k0k	7	4	b	b	PROPN
xw42n586k0k	7	5	abundances	abundance	NOUN
xw42n586k0k	7	6	in	in	ADP
xw42n586k0k	7	7	carbonatites	carbonatite	NOUN
xw42n586k0k	7	8	range	range	VERB
xw42n586k0k	7	9	between	between	ADP
xw42n586k0k	7	10	0.04	0.04	NUM
xw42n586k0k	7	11	and	and	CCONJ
xw42n586k0k	7	12	2.0	2.0	NUM
xw42n586k0k	7	13	parts	part	NOUN
xw42n586k0k	7	14	per	per	ADP
xw42n586k0k	7	15	million	million	NUM
xw42n586k0k	7	16	(	(	PUNCT
xw42n586k0k	7	17	ppm	ppm	PROPN
xw42n586k0k	7	18	)	)	PUNCT
xw42n586k0k	7	19	,	,	PUNCT
xw42n586k0k	7	20	well	well	ADV
xw42n586k0k	7	21	within	within	ADP
xw42n586k0k	7	22	the	the	DET
xw42n586k0k	7	23	range	range	NOUN
xw42n586k0k	7	24	reported	report	VERB
xw42n586k0k	7	25	for	for	ADP
xw42n586k0k	7	26	mantle	mantle	NOUN
xw42n586k0k	7	27	-	-	PUNCT
xw42n586k0k	7	28	derived	derive	VERB
xw42n586k0k	7	29	rocks	rock	NOUN
xw42n586k0k	7	30	.	.	PUNCT
xw42n586k0k	8	1	δ11b	δ11b	NOUN
xw42n586k0k	8	2	values	value	NOUN
xw42n586k0k	8	3	for	for	ADP
xw42n586k0k	8	4	the	the	DET
xw42n586k0k	8	5	carbonatite	carbonatite	ADJ
xw42n586k0k	8	6	samples	sample	NOUN
xw42n586k0k	8	7	varybetween	varybetween	NOUN
xw42n586k0k	8	8	+5.5‰	+5.5‰	CCONJ
xw42n586k0k	8	9	and	and	CCONJ
xw42n586k0k	8	10	-8.6‰.	-8.6‰.	INTJ
xw42n586k0k	8	11	these	these	PRON
xw42n586k0k	8	12	seem	seem	VERB
xw42n586k0k	8	13	to	to	PART
xw42n586k0k	8	14	define	define	VERB
xw42n586k0k	8	15	a	a	DET
xw42n586k0k	8	16	bimodal	bimodal	ADJ
xw42n586k0k	8	17	distribution	distribution	NOUN
xw42n586k0k	8	18	:	:	PUNCT
xw42n586k0k	8	19	one	one	NUM
xw42n586k0k	8	20	group	group	NOUN
xw42n586k0k	8	21	is	be	AUX
xw42n586k0k	8	22	characterized	characterize	VERB
xw42n586k0k	8	23	by	by	ADP
xw42n586k0k	8	24	more	more	ADJ
xw42n586k0k	8	25	negative	negative	ADJ
xw42n586k0k	8	26	δ11b	δ11b	NOUN
xw42n586k0k	8	27	values	value	NOUN
xw42n586k0k	8	28	(	(	PUNCT
xw42n586k0k	8	29	&	&	CCONJ
xw42n586k0k	8	30	lt	lt	PROPN
xw42n586k0k	8	31	;	;	PUNCT
xw42n586k0k	8	32	-4.0‰	-4.0‰	PROPN
xw42n586k0k	8	33	)	)	PUNCT
xw42n586k0k	8	34	,	,	PUNCT
xw42n586k0k	8	35	which	which	PRON
xw42n586k0k	8	36	suggests	suggest	VERB
xw42n586k0k	8	37	derivation	derivation	NOUN
xw42n586k0k	8	38	from	from	ADP
xw42n586k0k	8	39	typical	typical	ADJ
xw42n586k0k	8	40	asthenospheric	asthenospheric	ADJ
xw42n586k0k	8	41	(	(	PUNCT
xw42n586k0k	8	42	depleted	depleted	ADJ
xw42n586k0k	8	43	)	)	PUNCT
xw42n586k0k	8	44	upper	upper	ADJ
xw42n586k0k	8	45	mantle	mantle	PROPN
xw42n586k0k	8	46	source	source	NOUN
xw42n586k0k	8	47	,	,	PUNCT
xw42n586k0k	8	48	whereas	whereas	SCONJ
xw42n586k0k	8	49	samples	sample	NOUN
xw42n586k0k	8	50	belonging	belong	VERB
xw42n586k0k	8	51	to	to	ADP
xw42n586k0k	8	52	the	the	DET
xw42n586k0k	8	53	second	second	ADJ
xw42n586k0k	8	54	group	group	NOUN
xw42n586k0k	8	55	record	record	NOUN
xw42n586k0k	8	56	more	more	ADV
xw42n586k0k	8	57	positive	positive	ADJ
xw42n586k0k	8	58	δ11b	δ11b	NOUN
xw42n586k0k	8	59	values	value	NOUN
xw42n586k0k	8	60	(	(	PUNCT
xw42n586k0k	8	61	&	&	CCONJ
xw42n586k0k	8	62	gt	gt	PROPN
xw42n586k0k	8	63	;	;	PUNCT
xw42n586k0k	8	64	-4.0‰	-4.0‰	PROPN
xw42n586k0k	8	65	)	)	PUNCT
xw42n586k0k	8	66	and	and	CCONJ
xw42n586k0k	8	67	indicates	indicate	VERB
xw42n586k0k	8	68	involvement	involvement	NOUN
xw42n586k0k	8	69	of	of	ADP
xw42n586k0k	8	70	subducted	subducted	ADJ
xw42n586k0k	8	71	(	(	PUNCT
xw42n586k0k	8	72	crustal	crustal	NOUN
xw42n586k0k	8	73	)	)	PUNCT
xw42n586k0k	8	74	material	material	NOUN
xw42n586k0k	8	75	.	.	PUNCT
xw42n586k0k	9	1	the	the	DET
xw42n586k0k	9	2	latter	latter	ADJ
xw42n586k0k	9	3	may	may	AUX
xw42n586k0k	9	4	be	be	AUX
xw42n586k0k	9	5	sampled	sample	VERB
xw42n586k0k	9	6	by	by	ADP
xw42n586k0k	9	7	carbonatite	carbonatite	ADJ
xw42n586k0k	9	8	melts	melt	NOUN
xw42n586k0k	9	9	associated	associate	VERB
xw42n586k0k	9	10	with	with	ADP
xw42n586k0k	9	11	mantle	mantle	PROPN
xw42n586k0k	9	12	plume	plume	ADJ
xw42n586k0k	9	13	activity	activity	NOUN
xw42n586k0k	9	14	,	,	PUNCT
xw42n586k0k	9	15	and	and	CCONJ
xw42n586k0k	9	16	their	their	PRON
xw42n586k0k	9	17	corresponding	correspond	VERB
xw42n586k0k	9	18	emplacement	emplacement	NOUN
xw42n586k0k	9	19	ages	age	NOUN
xw42n586k0k	9	20	coincide	coincide	VERB
xw42n586k0k	9	21	with	with	ADP
xw42n586k0k	9	22	major	major	ADJ
xw42n586k0k	9	23	tectonic	tectonic	ADJ
xw42n586k0k	9	24	events	event	NOUN
xw42n586k0k	9	25	in	in	ADP
xw42n586k0k	9	26	earth	earth	NOUN
xw42n586k0k	9	27	's	's	PART
xw42n586k0k	9	28	history	history	NOUN
xw42n586k0k	9	29	;	;	PUNCT
xw42n586k0k	9	30	these	these	PRON
xw42n586k0k	9	31	are	be	AUX
xw42n586k0k	9	32	linked	link	VERB
xw42n586k0k	9	33	to	to	ADP
xw42n586k0k	9	34	episodes	episode	NOUN
xw42n586k0k	9	35	of	of	ADP
xw42n586k0k	9	36	supercontinent	supercontinent	NOUN
xw42n586k0k	9	37	formation	formation	NOUN
xw42n586k0k	9	38	and	and	CCONJ
xw42n586k0k	9	39	consequently	consequently	ADV
xw42n586k0k	9	40	significant	significant	ADJ
xw42n586k0k	9	41	periods	period	NOUN
xw42n586k0k	9	42	of	of	ADP
xw42n586k0k	9	43	subduction	subduction	NOUN
xw42n586k0k	9	44	at	at	ADP
xw42n586k0k	9	45	a	a	DET
xw42n586k0k	9	46	global	global	ADJ
xw42n586k0k	9	47	scale	scale	NOUN
xw42n586k0k	9	48	.	.	PUNCT