IMPLICATIONS OF NB/U, TH/U AND SM/ND IN PLUME MAGMAS FOR THE RELATIONSHIP BETWEEN CONTINENTAL AND OCEANIC CRUST FORMATION AND THE DEVELOPMENT OF THE DEPLETED MANTLE

dc.contributor.author	Campbell I.H.
dc.date.accessioned	2021-09-28T02:28:16Z
dc.date.available	2021-09-28T02:28:16Z
dc.date.issued	2002
dc.identifier	https://elibrary.ru/item.asp?id=14122100
dc.identifier.citation	Geochimica et Cosmochimica Acta, 2002, 66, 9, 1651-1661
dc.identifier.issn	0016-7037
dc.identifier.uri	https://repository.geologyscience.ru/handle/123456789/30632
dc.description.abstract	The Nb/U and Th/U of the primitive mantle are 34 and 4.04 respectively, which compare with 9.7 and 3.96 for the continental crust. Extraction of continental crust from the mantle therefore has a profound influence on its Nb/U but little influence on its Th/U. Conversely, extraction of midocean ridge-type basalts lowers the Th/U of the mantle residue but has little influence on its Nb/U. As a consequence, variations in Th/U and Nb/U with Sm/Nd can be used to evaluate the relative importance of continental and basaltic crust extraction in the formation of the depleted (Sm/Nd enriched) mantle reservoir.
dc.title	IMPLICATIONS OF NB/U, TH/U AND SM/ND IN PLUME MAGMAS FOR THE RELATIONSHIP BETWEEN CONTINENTAL AND OCEANIC CRUST FORMATION AND THE DEVELOPMENT OF THE DEPLETED MANTLE
dc.type	Статья

Files in this item

Name: Camp_02.pdf

Size: 234.0Kb

Format: PDF