Reversal of carbonate-silicate cation exchange in cold slabs in Earth’s lower mantle

Affiliations

Mingda Lv: Department of Earth and Environmental Sciences, Michigan State University
Susannah M. Dorfman: Department of Earth and Environmental Sciences, Michigan State University
James Badro: Université de Paris, Institut de physique du globe de Paris, CNRS
Stephan Borensztajn: Université de Paris, Institut de physique du globe de Paris, CNRS
Eran Greenberg: Center for Advanced Radiation Sources, University of Chicago
Vitali B. Prakapenka: Center for Advanced Radiation Sources, University of Chicago

Abstract

CaCO3 is more stable than MgCO3 under conditions of Earth’s lowermost mantle, with implications for deep mantle chemistry.