CARBON RECYCLED INTO DEEP EARTH: EVIDENCE FROM DOLOMITE DISSOCIATION IN SUBDUCTION-ZONE ROCKS

dc.contributor.author	Zhu Y.
dc.contributor.author	Ogasawara Y.
dc.date.accessioned	2021-05-24T06:54:05Z
dc.date.available	2021-05-24T06:54:05Z
dc.date.issued	2002
dc.identifier	https://www.elibrary.ru/item.asp?id=13947875
dc.identifier.citation	Geology, 2002, 30, 10, 947-950
dc.identifier.issn	0091-7613
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/28672
dc.description.abstract	The dolomite-dissociation textures documented here in rocks from the Kokchetav ultrahigh-pressure massif suggest that the experimentally expected dolomite dissociation happened in the subducted slabs represented by these rocks. Two reactions, magnesite = C + MgO + O2, and majoritic garnet + MgO + H2O = garnet + clinochlore, recorded in carbonate inclusions and the host majoritic garnet are responsible for generation of graphite and clinochlore during the exhumation. The dolomite dissociation indicates that carbonate materials were subducted to depths of >250 km below Earth's surface. Such deep subduction evidently brings abundant carbon and carbonate into deep Earth.
dc.subject	dolomite
dc.subject	aragonite
dc.subject	clinochlore
dc.subject	diamond
dc.subject	graphite
dc.subject	carbon recycling
dc.subject	subduction
dc.title	CARBON RECYCLED INTO DEEP EARTH: EVIDENCE FROM DOLOMITE DISSOCIATION IN SUBDUCTION-ZONE ROCKS
dc.type	Статья

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