Earth's oldest mantle fabrics indicate Eoarchaean subduction

Subduction is a main component of Phanerozoic plate tectonics, although the timing of initiation is controversial. Here, the authors present microstructural data from two 3.72 billion year old dunite lenses of Isua in Greenland, which suggest that subduction was already in operation during the Eoarc...

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Bibliographic Details
Published in:Nature Communications
Main Authors: Mary-Alix Kaczmarek, Steven M. Reddy, Allen P. Nutman, Clark R. L. Friend, Vickie C. Bennett
Format: Article in Journal/Newspaper
Language:English
Published: Nature Portfolio 2016
Subjects:
Science
Q
Greenland
Online Access:https://doi.org/10.1038/ncomms10665
https://doaj.org/article/3248d7b6f04545cfb182c08747b2b78c
Description
Summary:Subduction is a main component of Phanerozoic plate tectonics, although the timing of initiation is controversial. Here, the authors present microstructural data from two 3.72 billion year old dunite lenses of Isua in Greenland, which suggest that subduction was already in operation during the Eoarchaean.

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