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In-situ measurement at high pressure and temperature for iron state in lower mantle minerals

Research Project

Project/Area Number 19K23457
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0204:Astronomy, earth and planetary science, and related fields
Research InstitutionHiroshima University (2020-2021)
The University of Tokyo (2019)

Principal Investigator

Kakizawa Sho  広島大学, 先進理工系科学研究科(理), 助教 (10846819)

Project Period (FY) 2019-08-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsダイヤモンドアンビルセル / 高圧 / X線吸収微細構造 / 放射線X線回折 / 鉄 / スピン転移 / 高温高圧
Outline of Research at the Start

結晶構造中に取り込まれたFeは、結晶構造中の位置・価数・スピン状態によってそれぞれ異なった影響を物性に与える。地球下部マントルにはブリッジマナイトとペリクレースという鉱物が存在しているが、特にブリッジマナイトの高温高圧下におけるFeの状態は未解明なため、定量的な物性への影響は明らかになっていない。本研究では、X線吸収微細構造とX線回折の複合測定による新たなFe状態決定法を提案し、マントル鉱物中の高温高圧下におけるFeの状態の解明を行い、どのような影響を及ぼすか定量的に議論することである。

Outline of Final Research Achievements

Minerals in the Earth's interior contain iron, which is known to occur spin transition at high temperatures and pressures. When iron in minerals occurs in the spin transition, it significantly changes the lattice volume, compressibility, elastic wave velocity, thermal conductivity, electrical conductivity, and other physical properties of the mineral. There is a simultaneous effect on the chemical composition and structure of the lower mantle and mantle convection, as predicted from the seismic wave velocity structure. However, there are experimental and technical difficulties in determining the spin state at high temperatures and pressures, and a unified view has not yet been reached. In this study, I have laid the foundation for a new method to determine the spin state under high pressure and high temperature by using X-ray absorption fine structure.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、高圧下におけるスピン状態を決定する新たな手法を提案するものであり、統一的な見解が得られていないマントルに存在している鉱物中のスピン転移に関する研究を促進する可能性がある。また、X線吸収微細構造において結合距離の変化からの間接的な方法であるがスピン転移を捉えられる可能性があることが実験的に示された。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (22 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (18 results) (of which Int'l Joint Research: 8 results,  Invited: 1 results)

  • [Journal Article] High-pressure and high-temperature neutron-diffraction experiments using Kawai-type multi-anvil assemblies2021

    • Author(s)
      Sano-Furukawa Asami、Kakizawa Sho、Shito Chikara、Hattori Takanori、Machida Shinichi、Abe Jun、Funakoshi Ken-ichi、Kagi Hiroyuki
    • Journal Title

      High Pressure Research

      Volume: 41 Issue: 1 Pages: 65-74

    • DOI

      10.1080/08957959.2020.1867723

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] High nitrogen solubility in stishovite (SiO2) under lower mantle conditions2020

    • Author(s)
      Fukuyama Ko、Kagi Hiroyuki、Inoue Toru、Kakizawa Sho、Shinmei Toru、Hishita Shunichi、Takahata Naoto、Sano Yuji
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 10897-10897

    • DOI

      10.1038/s41598-020-67621-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of pressure on temperature measurements using WRe thermocouple and its geophysical impact2020

    • Author(s)
      Nishihara Yu、Doi Shunta、Kakizawa Sho、Higo Yuji、Tange Yoshinori
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 298 Pages: 106348-106348

    • DOI

      10.1016/j.pepi.2019.106348

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Element-selective elastic properties of Fe65Ni35 Invar alloy and Fe72Pt28 alloy studied by extended X-ray absorption fine structure2019

    • Author(s)
      Kousa M.、Iwasaki S.、Ishimatsu N.、Kawamura N.、Nomura R.、Kakizawa S.、Mizumaki M.、Sumiya H.、Irifune T.
    • Journal Title

      High Pressure Research

      Volume: 40 Issue: 1 Pages: 130-139

    • DOI

      10.1080/08957959.2019.1702175

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] In situ X-ray and neutron diffraction studies of hcp iron hydride2020

    • Author(s)
      S. Kakizawa, H. Kagi, C. Shito, H. Saitoh, Y. Higo, Y. Tange, A. Sano-Furukawa, T. Hattori, and K. Aoki
    • Organizer
      日本地球惑星科学連合2020年大会(JpGU2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Temperature dependence on nitrogen solubility in bridgmanite under lower mantle conditions: its role in formation of deep nitrogen reservoir through solidification of magma ocean2020

    • Author(s)
      K. Fukuyama, H. Kagi, T. Inoue, S. Kakizawa, T. Shinmei, S. Hishita, N. Takahata, and Y. Sano
    • Organizer
      日本地球惑星科学連合2020年大会(JpGU2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] High-PT neutron diffraction experiments on guyanaite: Pressure-temperature dependence of hydrogen bonding in hydrous minerals2020

    • Author(s)
      C. Shito, H. Kagi, A. Sano-Furukawa, S. Kakizawa, K. Komatsu, K. Aoki, R. Iizuka-Oku, S. Machida, N. Furukawa, and A. Suzuki
    • Organizer
      日本地球惑星科学連合2020年大会(JpGU2020)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 高温高圧中性子回折によるhcp-FeHxの水素位置の検討2020

    • Author(s)
      柿澤翔, 鍵裕之, 市東力, 佐野亜沙美, 服部高典, 青木勝敏
    • Organizer
      第61回高圧討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] 高温高圧中性子回折によるfcc Fe0.9Ni0.1水素化物の結晶構造解析2020

    • Author(s)
      市東力, 鍵裕之, 柿澤翔, 森悠一郎, 飯塚理子, 青木勝敏, 齋藤寛之, 阿部淳, 佐野亜沙美, 服部高典
    • Organizer
      第61回高圧討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] 高圧下におけるPhase Eggの水素位置の決定2020

    • Author(s)
      柿澤翔, 鍵裕之, 佐野亜沙美, 小松一生, 市東力, 服部高典, 西真之, 井上徹
    • Organizer
      日本鉱物科学会2020年
    • Related Report
      2020 Research-status Report
  • [Presentation] 下部マントル条件下におけるbridgmanite (MgSiO3)中の窒素取り込み量への温度依存性および鉄固溶量の影響2020

    • Author(s)
      福山鴻, 鍵裕之, 井上徹, 柿澤翔, 新名亨, 三河内岳, 佐野有司, C_cile Deligny, Evelyn Fu_ri
    • Organizer
      日本鉱物科学会2020年
    • Related Report
      2020 Research-status Report
  • [Presentation] Alに富んだ無水ブリッジマナイトの存在可能組成領域2019

    • Author(s)
      井上徹,野田昌道,柿澤翔
    • Organizer
      日本地球惑星科学連合2019年大会(JpGU2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Maximum water solubility of bridgmanite under the Earth's lower mantle conditions2019

    • Author(s)
      柿澤翔,井上徹,阿部綾太郎,黒田みなみ,坂本直哉,圦本尚義
    • Organizer
      日本地球惑星科学連合2019年大会(JpGU2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] The role of stishovite as a deep nitrogen carrier indicated from high-pressure and high-temperature experiments2019

    • Author(s)
      福山鴻,鍵裕之,井上徹,新名亨,柿澤翔,菱田俊一,佐野有司,高畑直人
    • Organizer
      日本地球惑星科学連合2019年大会(JpGU2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Nitrogen solubility in stishovite under high P-T: formation of "hidden" nitrogen reservoir in the deep mantle via subducting slabs2019

    • Author(s)
      Fukuyama, K., Kagi, H., Inoue, T., Shinmei, T., Kakizawa, S., Hishita, S., Takahata, N. and Sano, Y.
    • Organizer
      Goldschmidt2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 下部マントル上部における水の最大貯蔵量:ブリッジマナイトの最大含水量2019

    • Author(s)
      柿澤翔, 井上徹, 阿部遼太郎, 黒田みなみ, 坂本直哉, 圦本 尚義
    • Organizer
      日本地球化学会第66回年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 高温高圧実験とSIMS分析から求めたstishoviteへの窒素取り込み量:沈み込みを介した地球深部における窒素貯蔵庫形成2019

    • Author(s)
      福山鴻, 鍵裕之, 井上徹, 柿澤翔, 新名亨, 菱田俊一, 高畑直人, 佐野有司
    • Organizer
      日本地球化学会第66回年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 地球深部における含水鉱物の水素結合対称化:高温高圧下におけるβ-CrOODの中性子回折実験2019

    • Author(s)
      市東力, 鍵裕之, 佐野 亜沙美, 柿澤翔, 小松一生, 青木勝敏, 飯塚理子, 町田真一, 古川登, 鈴木昭夫
    • Organizer
      日本地球化学会第66回年会
    • Related Report
      2019 Research-status Report
  • [Presentation] MA6-8 式による高温高圧中性子回折実験に向けた実験技術開発2019

    • Author(s)
      柿澤翔, 鍵裕之, 佐野亜沙美, 服部高典, 新名亨, 入舩徹男
    • Organizer
      第60回高圧討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] hcp FeHx の安定水素組成ー温度ー圧力領域2019

    • Author(s)
      青木勝敏, 福山鴻, 柿澤翔, 鍵裕之, 齋藤寛之, 町田晃彦
    • Organizer
      第60回高圧討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] β-CrOOD(guyanaite) の高温高圧中性子回折測定と水素結合の温度圧力依存性2019

    • Author(s)
      市東力, 鍵裕之, 佐野亜沙美, 柿澤翔, 小松一生, 青木勝敏, 飯塚理子, 町田真一, 古川登, 鈴木昭夫
    • Organizer
      第60回高圧討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] Hydrogen positions in Al-bearing hydrous bridgmanite investigated by neutron diffraction2019

    • Author(s)
      S. Kakizawa, T. Inoue, T. Kuribayashi, A. Sano-Furukawa, and T. Hattori
    • Organizer
      NCKU Neutron scattering Workshop
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-09-03   Modified: 2023-01-30  

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