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Low Core-Mantle Boundary Temperature Inferred from the Solidus of Pyrolite (Press Release)

Release Date
17 Jan, 2014
  • BL10XU (High Pressure Research)
  • BL47XU (HAXPES / uCT)

Tokyo Institute of Technology
Japan Synchrotron Radiation Research Institute (JASRI)
Kyoto University

The paper “Low Core-Mantle Boundary Temperature inferred from the Solidus of Pyrolite” by ELSI director Kei Hirose and team appears in Science.

Hirose and team have discovered a large amount of hydrogen present in the Earth’s core. This evidence shows that the Earth during the time of formation had a large amount of water (80 times that of ocean water) but that the majority of it has been incorporated into the core.

Publication:
"Low Core-Mantle Boundary Temperature Inferred from the Solidus of Pyrolite"
Ryuichi Nomura, Kei Hirose, Kentaro Uesugi, Yasuo Ohishi, Akira Tsuchiyama, Akira Miyake, Yuichiro Ueno
Science, Published Online January 16 2014

For more information, please contact:
  Prof. Kei Hirose (Tokyo Institute of Technology, Earth-Life Science Institute)
    E-mail : mail1

  Mr. Ryuichi Nomura (Tokyo Institute of Technology, Earth-Life Science Institute)
    E-mail : mail2

  Dr. Kentaro Uesugi (JASRI)
    E-mail : mail3

  Prof. Akira Tsuchiyama (Kyoto University, Graduate School of Science)
    E-mail : mail4

  Associate Prof. Akira Miyake (Kyoto University, Graduate School of Science)
    E-mail : mail5
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