Plate tectonics drive compositional evolution of the upper mantle, study finds
Temporal variations in the composition of convecting mantle. Credit: Science Advances (2024). DOI: 10.1126/sciadv.adq7476 On present-day Earth, plate subduction continuously modifies the chemical composition of the convecting mantle, and various mantle sources linked to these processes have been widely studied. However, when did global chemical heterogeneity of the convecting mantle first emerge in Earth’s geological…
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