Temporal and geochemical evolution of the Madeira and Selvagen Islands and associated seamounts (eastern North Atlantic): Implications for the size and structure of mantle plumes

This study reports 40 Art39 AI age determinations, major element, trace element and SrNd-Pb isotope compositions from volcanic rocks of the Madeira and Sei vagen Island groups and associated seamounts to the east and northeast. Evidence for the recycling of oceanic crust over short time scales and t...

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Bibliographic Details
Main Author: Geldmacher, Jörg
Format: Thesis
Language:English
Published: 2000
Subjects:
North Atlantic
Online Access:https://oceanrep.geomar.de/id/eprint/48288/
https://oceanrep.geomar.de/id/eprint/48288/1/Geldmacher.pdf
Description
Summary:This study reports 40 Art39 AI age determinations, major element, trace element and SrNd-Pb isotope compositions from volcanic rocks of the Madeira and Sei vagen Island groups and associated seamounts to the east and northeast. Evidence for the recycling of oceanic crust over short time scales and the attribution of islands and seamounts to separate hotspot systems are presented.

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