Dynamical Geochemistry: Ocean crust recycling through plate tectonics and its role in the formation of mantle heterogeneity - Archive ouverte HAL
Chapitre D'ouvrage Année : 2025

Dynamical Geochemistry: Ocean crust recycling through plate tectonics and its role in the formation of mantle heterogeneity

Résumé

Chemical geodynamics is a term coined nearly forty years ago to highlight the important link between Earth's geochemical evolution and plate tectonics & mantle convection. Significant progress in our understanding of this connection has taken place since then through advances in the analytical precision of geochemical measurements; dramatically improved geophysical imaging techniques; application of novel isotope systems; and great advances in computational power. The latter especially has improved geodynamical models and data interpretation techniques. We provide a review of these advances and their impact on chemical geodynamics, or perhaps, dynamical geochemistry. To focus this review we will address primarily the role of whole mantle convection and oceanic crust formation and recycling together with an update on our understanding of noble gas systematics.

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Dates et versions

hal-04737275 , version 1 (15-10-2024)

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Peter E van Keken, Catherine Chauvel, Christopher J Ballentine. Dynamical Geochemistry: Ocean crust recycling through plate tectonics and its role in the formation of mantle heterogeneity. Treatise on Geochemistry, Elsevier, pp.647-670, 2025, ⟨10.1016/B978-0-323-99762-1.00103-0⟩. ⟨hal-04737275⟩
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