高温高圧実験で探る地球深部始源的希ガスリザーバーの在処  [in Japanese] Constraints on Primordial Noble Gas Reservoir Deep in the Earth by High-Pressure and High-Temperature Experiments  [in Japanese]

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Author(s)

    • 角野 浩史 SUMINO Hirochika
    • 東京大学大学院総合文化研究科 広域科学専攻 相関基礎科学系 Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
    • 貴志 智 KISHI Satoshi
    • 東京大学大学院総合文化研究科 広域科学専攻 相関基礎科学系 Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
    • 三部 賢治 MIBE Kenji
    • 東京大学地震研究所 物質科学系研究部門 Division of Earth and Planetary Materials Science, Earthquake Research Institute, The University of Tokyo
    • 鍵 裕之 KAGI Hiroyuki
    • 東京大学大学院理学系研究科 地殻化学実験施設 Geochemical Research Center, Graduate School of Science, The University of Tokyo

Abstract

Noble gas isotopes have been a strong argument for the presence of primordial reservoir in the mantle, which has been isolated from the mantle convection throughout the Earth's history. However, recent understanding of mantle dynamics has revealed difficulty with the isolation within the mantle. Alternatively the core is a promising candidate, validity of which depends on partition coefficient of noble gases between liquid iron-rich metal and silicate melt at condition of core segregation in the magma ocean. A few experiments showed that the core could hold primordial noble gases though there are several uncertainties possibly due to extreme noble gas concentrations. For a better understanding of the primordial noble gas reservoir, we are conducting new experiments to determine noble gas partition coefficients between molten metal and silicate.<br>

Journal

  • The Review of High Pressure Science and Technology

    The Review of High Pressure Science and Technology 27(4), 266-277, 2017

    The Japan Society of High Pressure Science and Technology

Codes

  • NII Article ID (NAID)
    130006338336
  • NII NACSIS-CAT ID (NCID)
    AN10452913
  • Text Lang
    JPN
  • ISSN
    0917-639X
  • NDL Article ID
    028849622
  • NDL Call No.
    Z17-1589
  • Data Source
    NDL  J-STAGE 
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