A perovskitic lower mantle inferred from high-pressure, high-temperature sound velocity data

Motohiko Murakami (), Yasuo Ohishi, Naohisa Hirao and Kei Hirose
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Motohiko Murakami: Graduate School of Science, Tohoku University, Sendai, Miyagi 980-8578, Japan
Yasuo Ohishi: Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
Naohisa Hirao: Japan Synchrotron Radiation Research Institute, Sayo, Hyogo 679-5198, Japan
Kei Hirose: Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan

Nature, 2012, vol. 485, issue 7396, 90-94

Abstract: Determination of the shear-wave velocities for silicate perovskite and ferropericlase under the pressure and temperature conditions of the deep lower mantle indicates that perovskite constitutes much more of the lower mantle than predicted by the conventional mantle model and is consistent with the chondritic Earth model.

Date: 2012
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DOI: 10.1038/nature11004

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