Stability of Magnesite under the Lower Mantle Conditions.

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概要

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• High-pressure and high-temperature stability of MgCO3 magnesite was investigated using a lever and spring type of diamond anvil cell up to 55GPa at about 1300°C. No phase transformation was observed in magnesite at the pressures investigated. Magnesite would be a dominant carbon-reservoir in the lower mantle. The volume of magnesite at 55GPa is 77% of that at the atmospheric pressure. The compressibility in the c-axis is 8% larger than that in the a-axis.

• 日本学士院の論文

著者

• Yagi Takehiko

  Institute For Solid State Physics The University Of Tokyo

• Katsura Tomoo

  Institute For Study Of The Earth's Interior Okayama University

• Akimoto Syun-iti

  Institute For Solid State Physics The University Of Tokyo

• Ito Eiji

  Institute For Study Of Earth's Lnterior Okayama University

• KATSURA Tomoo

  Institute for Study of the Earth's Interior, kayama University

• TSUCHIDA Yoshihiko

  Institute for Solid State Physics, University of Tokyo

• UTSUMI Wataru

  Institute for Solid State Physics, University of Tokyo

• ITO Eiji

  Institute for Study of the Earth's Interior, kayama University

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