40Ar/39Ar dating reveals over 30 million years of plume-ridge interaction formed the Rio Grande Rise

40Ar/39Ar dating reveals over 30 million years of plume-ridge interaction formed the Rio Grande Rise

Abstract The Rio Grande Rise (RGR) oceanic plateau exhibits distinctly broad morphology compared to the linear, age-progressive Walvis Ridge (WR), despite both originating from the Tristan-Gough (T-G) plume. New 40Ar/39Ar ages (84–41 Ma) from RGR demonstrate prolonged coeval formation with WR at the...

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Bibliographic Details
Main Authors: Peter C. Davidson, Anthony A. P. Koppers, Cornelia Class, William W. Sager, Daniel Heaton
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Communications Earth & Environment
Online Access:https://doi.org/10.1038/s43247-025-02572-y
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