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Formation of bridgmanite-enriched layer at the top lower-mantle during magma ocean solidification

Authors
  • Xie, Longjian1, 2
  • Yoneda, Akira1
  • Yamazaki, Daisuke1
  • Manthilake, Geeth3
  • Higo, Yuji4
  • Tange, Yoshinori4
  • Guignot, Nicolas5
  • King, Andrew5
  • Scheel, Mario5
  • Andrault, Denis3
  • 1 Okayama University, Misasa, Tottori, 682-0193, Japan , Misasa (Japan)
  • 2 University of Bayreuth, Bayreuth, 95440, Germany , Bayreuth (Germany)
  • 3 Université Clermont Auvergne, CNRS, IRD, OPGC, Clermont-Ferrand, F‑63000, France , Clermont-Ferrand (France)
  • 4 Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo, Hyogo, 689-5198, Japan , Hyogo (Japan)
  • 5 Synchrotron SOLEIL, Gif-sur-Yvette, France , Gif-sur-Yvette (France)
Type
Published Article
Journal
Nature Communications
Publisher
Springer Nature
Publication Date
Jan 28, 2020
Volume
11
Issue
1
Identifiers
DOI: 10.1038/s41467-019-14071-8
Source
Springer Nature
License
Green

Abstract

Following the impact of the protoplanet Theia, planet Earth likely transformed into a magma ocean. New high temperature and pressure experiments by Xie et al. suggest that a layer enriched in bridgmanite formed during the magma ocean phase of Earth–remnants of this ancient layer today may be responsible for the viscosity peak between 660 and 1500 km in present solid mantle.

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