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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Autores principales: Mary-Alix Kaczmarek, Steven M. Reddy, Allen P. Nutman, Clark R. L. Friend, Vickie C. Bennett
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2016
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Acceso en línea:https://doaj.org/article/3248d7b6f04545cfb182c08747b2b78c
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Sumario: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.