Ubiquitous ultra-depleted domains in Earth’s mantle
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DOI: 10.1038/s41561-019-0446-z
Abstract: Partial melting of Earth’s mantle generates oceanic crust and leaves behind a chemically depleted residual mantle. The time-integrated composition of this chemically depleted mantle is generally inferred from basalts produced at mid-ocean ridges. However, isotopic… read more here.
Keywords: ultra depleted; mid ocean; mantle plume; depleted mantle ... See more keywords
The combined Hf and Nd isotope evolution of the depleted mantle requires Hadean continental formation
Sign Up to like & getrecommendations! Published in 2023 at "Science Advances"
DOI: 10.1126/sciadv.ade2711
Abstract: The onset and rates of continental growth are first-order indicators of early Earth dynamics, and whether substantial crust existed in the Hadean or much later has long been debated. Here, we present a theoretical analysis… read more here.
Keywords: requires hadean; depleted mantle; evolution depleted; mantle requires ... See more keywords