A >100 Ma Mantle Geochemical Record: Retiring Mantle Plumes may be Premature (original) (raw)

Agu Fall Meeting Abstracts, 2006

Abstract

Hotspot volcanism has long been attributed to mantle plumes, but in recent years suggestions have been made that plate tectonic processes, such as extension, can account for all hotspot tracks. This explanation involves a profoundly less dynamic lower mantle, which justifies a critical evaluation before the plume model is dismissed. Such an evaluation has to involve a wide range of

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