Secular change and the onset of plate tectonics on Earth
Descripción general
Resumen del artículo
Evidence suggests a global-scale initiation of plate tectonics no later than c. 3 Ga. Earlier apparent subduction events may be attributed to localized plume-induced subduction initiation, which did not develop into a stable global network until the Mesoarchean or later.
Explícamelo como si tuviera cinco años
Scientists found that Earth's giant puzzle pieces, called plates, started moving all over the world about 3 billion years ago. Before that, only tiny parts moved here and there, not the whole planet's surface.
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Explicación de la calificación
This review provides a valuable synthesis of existing evidence regarding the onset of plate tectonics, covering petrological, tectonic, geochemical, isotopic, and geodynamic modeling approaches. The review acknowledges uncertainties and unresolved issues, suggesting directions for future research.
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