Seismic and geochemical evidence for large-scale mantle upwelling beneath the eastern Atlantic and western and central Europe.

Hoernle, Kaj , Zhang, Yu-Shen and Graham, David (1995) Seismic and geochemical evidence for large-scale mantle upwelling beneath the eastern Atlantic and western and central Europe. Nature, 374 . pp. 34-39. DOI 10.1038/374034a0.

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Abstract

Seismic tomography and the isotope geochemistry of Cenozoic volcanic rocks suggest the existence of a large, sheet-like region of upwelling in the upper mantle which extends from the eastern Atlantic Ocean to central Europe and the western Mediterranean. A belt of extension and rifting in the latter two areas appears to lie above the intersection of the centre of the upwelling region with the base of the lithosphere. Lead, strontium and neodymium isotope data for all three regions converge on a restricted composition, inferred to be that of the upwelling mantle.

Document Type: Article
Keywords: CANARY-ISLANDS; GRAN-CANARIA; ALKALINE MAGMATISM; ISOTOPE EVIDENCE; ENRICHED MANTLE; TIME TOMOGRAPHY; VOLCANIC-ROCKS; FLOOD BASALTS; EARTHS MANTLE; EVOLUTION
Research affiliation: OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS
Refereed: Yes
Open Access Journal?: No
Publisher: Nature Publishing Group
Date Deposited: 29 Oct 2013 09:20
Last Modified: 27 Feb 2017 09:56
URI: https://oceanrep.geomar.de/id/eprint/22293

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