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

Author

Listed:
  • 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
    Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Kanagawa 237-0061, Japan)

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.

Suggested Citation

  • Motohiko Murakami & Yasuo Ohishi & Naohisa Hirao & Kei Hirose, 2012. "A perovskitic lower mantle inferred from high-pressure, high-temperature sound velocity data," Nature, Nature, vol. 485(7396), pages 90-94, May.
    • Handle: RePEc:nat:nature:v:485:y:2012:i:7396:d:10.1038_nature11004
    DOI: 10.1038/nature11004
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    Cited by:

    1. Wen-Yi Zhou & Ming Hao & Jin S. Zhang & Bin Chen & Ruijia Wang & Brandon Schmandt, 2022. "Constraining composition and temperature variations in the mantle transition zone," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    2. Li Zhang & Yongjin Chen & Ziqiang Yang & Lu Liu & Yanping Yang & Philip Dalladay-Simpson & Junyue Wang & Ho-kwang Mao, 2024. "Pressure stabilizes ferrous iron in bridgmanite under hydrous deep lower mantle conditions," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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