Age systematics of two young en echelon Samoan volcanic trails | Semantic Scholar
@article{Koppers2011AgeSO,
title={Age systematics of two young en echelon Samoan volcanic trails},
author={Anthony A. P. Koppers and Jamie A. Russell and Jed T. Roberts and Matthew G. Jackson and Jasper G. Konter and Dawn J. Wright and Hubert Staudigel and Stanley R. Hart},
journal={Geochemistry},
year={2011},
volume={12},
url={https://api.semanticscholar.org/CorpusID:54947952}
}The volcanic origin of the Samoan archipelago can be explained by one of three models, specifically, by a hot spot forming over a mantle plume, by lithospheric extension resulting from complex subduction tectonics in the region, or by a combination of these two processes, either acting sequentially or synchronously. In this paper, we present results of 36 high‐resolution 40Ar/39Ar incremental heating age analyses for the initial (submarine) phase of Samoan volcanoes, ranging from 13.2 Ma for…
59 Citations
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It is concluded that shallow mantle upwelling beneath the Atlantic Ocean basin off the NW African continental lithosphere flanks produced recurrent melting anomalies and seamounts from the Late Jurassic to Recent, nominating the Canary Island Seamount Province as oldest hotspot track in the Atlantic ocean, and most long-lived preserved on earth.
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- V. StrakW. Schellart
- 2018
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It is found that two geodynamic processes can explain mantle melting responsible for intraplate volcanism in the Samoan region, and the Subduction-Induced Mantle Upwelling (SIMU) drives decompression melting in the westward-swept plume material, thus producing the non-hotpot volcanism.