Water and hydrogen are immiscible in Earth’s mantle

Enikő Bali (), Andreas Audétat and Hans Keppler
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Enikő Bali: Bayerisches Geoinstitut, Universität Bayreuth, 95440 Bayreuth, Germany
Andreas Audétat: Bayerisches Geoinstitut, Universität Bayreuth, 95440 Bayreuth, Germany
Hans Keppler: Bayerisches Geoinstitut, Universität Bayreuth, 95440 Bayreuth, Germany

Nature, 2013, vol. 495, issue 7440, 220-222

Abstract: Experimental evidence is presented which shows that water and hydrogen can coexist as two separate, immiscible phases in Earth’s mantle; such immiscibility might be responsible for the formation of enigmatic, extremely reducing domains inferred to exist in the mantle, and may provide a mechanism for the rapid oxidation of Earth’s upper mantle immediately following core formation.

Date: 2013
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DOI: 10.1038/nature11908

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