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Element partitioning between minearls and silicate melt under high pressure and its implications for the evolution of the terrestrial planets

Research Project

Project/Area Number 10640470
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Petrology/Mineralogy/Science of ore deposit
Research InstitutionGakushuin University

Principal Investigator

SUZUKI Toshihiro  Gakushuin University, Faculty of Science, Assistant, 理学部, 助手 (40235974)

Co-Investigator(Kenkyū-buntansha) NAKAMURA Eizo  Institute for Study of Earth's Interior, Okayama University, Professor, 固体地球研究センター, 教授 (80201672)
AKAOGI Masaki  Gakushuin University, Faculty of Science, Professor, 理学部, 教授 (30126560)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 1999: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1998: ¥1,700,000 (Direct Cost: ¥1,700,000)
KeywordsElement partitioning / High Pressure / Garnet / Silicate melt / Majorite / Silicate-perovskite
Research Abstract

High pressure melting experiments on primitive mantle composition material (PM1), thoreiitic basalt (JB2) and Cr-diopside (CD1) were performed from 3 to 23.5 Gpa, and high pressure mineral/silicate melt partition coefficients, D, were measured for major and trace elements. Chemical analysis of major elements was carried out with and Electron Prove Micro Analyzer, and concentrations of trace elements were measured by Secondary Ion Mass Spectrometer. From the time study experiments of PM1 at 15GPa, it was found that at least one hour is required to achieve equilibrium condition between majorite and coexisting silicate melt. In the case of PM1, D of Majorite/silicate melt and Mg-perovskite/silicate melt were measured. D of Garnet, Clino-pyroxene and Ca-perovskite/silicate melt were also measured by using JB2 and CD1.
In most of the observed high pressure minerals, D-value was remarkably decreased when the ionic radius of the elements become larger than 90 pm.Therefore, the elements whose ionic radius are larger than 90 pm will concentrate in silicate melt. However, Ca-perovskite/silicate melt system showed different partitioning behavior: Ca-perovskite can accommodate the elements whose ionic radius are 90-110 pm, and the elements with ionic radius of 60 - 80 pm are concentrated in silicate melt. It was also observed that DィイD2NaィエD2. Was obviously increased with increase in pressure. Although this behavior of DィイD2NaィエD2. May be explained by substitution process, this observation can be explained by relative shrinkage of NaィイD1+ィエD1 ion. If NaィイD1+ィエD1 relatively decrease in size for 3%, the observed change in DィイD2NaィエD2 can be explained.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (18 results)

All Other

All Publications (18 results)

  • [Publications] Suzuki, T. And M. Akaogi: "Element partitioning between some mantle minerals and the coexisting silicate melt under high pressure."High Pressure - High Temperature Resarch: Properties of Earth and Planetary Materials. Amer. Geophys. Union Monograph. 261-270 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akaogi, M., H. Kojitani, K. Matsuzaka, T. Suzuki and E. Ito: "Postspinel transformations in the system Mg_2SiO_4-Fe_2SiO_4: Element partitioning, calorimetry, and thermodynamic calculation"High Pressure - High Temperature Resarch: Properties of Earth and Planetary Materials. Amer. Geophys. Union Monograph. 373-384 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ito, E., T. Katsura, K. Morooka, O. Ujike and T. Suzuki: "Reactions between molten iron and silicates at high pressure."High Pressure - High Temperature Resarch: Properties of Earth and Planetary Materials. Amer. Geophys. Union Monograph. 215-225 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akaogi, M., T. Suzuki, R. Kojima, T. Honda, E. Ito, and I. Nakai: "Enthalpy and density measurements of pressure-amorphized GeO_2 quartz"Geophysical Research Letters. 25. 3636-3638 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akaogi, M., Y. Hamada, T. Suzuki, M. Kobayashi and M. Okada: "High pressure transition in the system MgAl_2O_4-CaAl_2O_4: a new hexagonal aluminous phase with implication for the lower mantle"Physics of Earth and Planetery Interior. 115. 67-77 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Suzuki T., M. Akaogi, and E. nakamura: "Partitioning of major elements between garnet-structured minerals and silicate melt at pressure of 3-15 Gpa"Physics of Earth and Planetary Interior. (印刷中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Suzuki, T, and M. Akaogi: "Element partitioning between some mantle minerals and the coexisting silicate melt under high pressure."High Pressure - High Temperature Research: Properties of Earth and Planetary Materials Amer. Geophys. Union Monograph. 261-270 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akaogi, M., H. Kojitani, K. Matsuzaka, T. Suzuki and E. Ito: "Postspinel transformations in the system MgィイD22ィエD2SiOィイD24ィエD2-FeィイD22ィエD2SiOィイD24ィエD2: Element partltioning, calorimetry, and thermodynamic calculation."High Pressure - High Temperature Research: Properties of Earth and Planetary Materials Amer. Geophys. Union Monograph. 373-384 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Ito, E., T. Katsura, K. Morooka, O. Ujike and T. Suzuki: "Reactions between molten iron and silicates at high pressure."High Pressure - High Temperature Research: Properties of Earth and Planetary Materials Amer. Geophys. Union Monograph. 215-225 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akaogi, M., T. Suzuki, R. Kojima, T. Honda, E. Ito and I. Nakai: "Enthalpy and density measurements of pressure-amorphized GeOィイD22ィエD2 quartz."Geophys. Res. Lett.. 25. 3636-3638 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Akaogi, M., Y. Hamada, T. Suzuki, M. Kobayashi and M. Okada: "High pressure transitions in the system MgAlィイD22ィエD2OィイD24ィエD2-CaAlィイD22ィエD2OィイD24ィエD2: a new hexagonal aluminous phase with implication for the lower mantle."Phys. Earth Planet. Inter. 115. 67-77 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Suzuki, T., M. Akaogi, and E. Nakamura: "Partitioning of major elements between garnet-structured minerals and silicate melt at pressure of 3 - 15 Gpa."Phys. Earth Planet. Inter. (in press). (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Suzuki,T.and M.Akaogi: "Element partitioning between some mantle minerals and the coexisting silicate melt under high pressure"High Pressure-High Temperature Research:Properties of Earth and Planetary Materials.Amer.Geophys.Union Monograph. 261-270 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] Akaogi,M.,H.Kojitani,K.Matsuzaka,T.Suzuki and E.Ito: "Postspinel transformations in the system Mg_2SiO_4-Fe_2SiO_4:Element partitioning,calorimetry,and thermodynamic calculation"High Pressure-High Temperature Research:Properties of Earth and Planetary Materials.Amer.Geophys.Union Monograph. 373-384 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] Ito,E.,T.Katsura,K.Morooka,O.Ujike and T.Suzuki: "Reactions between molten iron and silicates at high pressure"High Pressure-High Temperature Research:Properties of Earth and Planetary Materials.Amer.Geophys.Union Monograph. 215-225 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] Akaogi,M.,T.Suzuki,R.Kojima,T.Honda,E.Ito and I.Nakai: "Enthalpy and density measurements of pressure-amorphized GeO_2 quartz"Geophysical Research Letters. 25. 3636-3638 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] Akaogi,M.,Y.Hamada,T.Suzuki,M.Kobayashi and M.Okada: "High pressure transitions in the system MgAl_2O_4-CaAl_2O_4:a new hexagonal aluminous phase with implication for the lower mantle"Physics of Earth and Planetary Interior. 115. 67-77 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Suzuki,T.,M.Akaogi,and E.Nakamura: "Partitioning of major elements between garnet-structured minerals and silicate melt at pressure of 3-15GPa"Physics of Earth and Planetary Interior. (印刷中). (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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