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The study of the materials of the lower mantle by a laser heated diamond anvil cell and analytical electron microscopy

Research Project

Project/Area Number 12304030
Research Category

Grant-in-Aid for Scientific Research (A)

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

Principal Investigator

FUJINO Kiyoshi  Hokkaido Univ., Grad. School of Sci., Prof., 大学院・理学研究科, 教授 (40116968)

Co-Investigator(Kenkyū-buntansha) TOMIOKA Naotaka  Kobe Univ., Fac. Of Sci., Inst., 理学部, 助手 (30335418)
MIURA Hiroyuki  Hokkaido Univ., Grad. School of Sci., Lec., 大学院・理学研究科, 講師 (70157436)
JIANG Dayong  北海道大学, 大学院・理学研究科, 学振外国人特別研究員
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥44,620,000 (Direct Cost: ¥42,100,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2002: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2001: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2000: ¥33,700,000 (Direct Cost: ¥33,700,000)
Keywordslaser-heated DAC / analytical electron microscopy / ultramicrotomy / MgSiO_3 perovskite / CaSiO_3 perovskite / double-perovskite / lower mantle / レーザー加熱ダイヤモンドアンビルセル / ペロブスカイト
Research Abstract

In this study, the YLF laser-heated diamond anvil cell (DAC) experiments at up to 100 GPa and 3000 K and analytical transmission electron microscopy (ATEM) using the ultrathin foils prepared by ultramicrotomy were developed. By the combined method of a laser-heated DAC, synchrotron X-ray diffraction and ATEM, the following results were obtained.
1) High pressure syntheses of CaMgSi_2O_6-CaFeSi_2O_6 pyroxene at 30-80 Gpa and 1700-2200 K and analyses of the samples revealed that the Ca solubility in MgSiO_3 perovskite was about 1-2 mole % at 30 Gpa in the CaMgSi_2O_6 end and does not seem to change with increasing the Fe content or pressure, while the Mg solubility in CaSiO_3 perovskite was about 4 mole % at 30 Gpa in the CaMgSi_2O_6 end but the (Mg,Fe) solubility in CaSiO_3 perovskite significantly increased up to 20-30 mole % with increasing the Fe content and pressure.
2) High pressure syntheses of (Mg,Fe)SiO_3-Al_2O_3 gel at 30-60 GPa and 1800-2000 K and analyses of the samples showed that the Fe solubility in (Mg,Fe)SiO_3 perovskite increased with increasing the Al content in perovskite, indicating the formation of the endmember Fe^<3+>Al^<3+>O_3 in perovskite.
3) High pressure syntheses of CaSiO_3-CaTiO_3 glass at 30 Gpa and 1800 K and analyses of the samples showed that the Ti substitution for Si in CaSiO_3 perovakite produced doubling of a unit cell axis, resulting in a double perovskite-like structure in the intermediate composition of this system. This structure is face-centered cubic at high pressure and high temperature, but it inverts to a lower symmetry structure during cooling.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (39 results)

All Other

All Publications (39 results)

  • [Publications] Kubo, T.: "Formation of metastable assemblages and mechanisms of the grain-size reduction in the postspinel transformation of Mg_2SiO_4"Geophys. Res. Lett.. 27. 807-810 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Funamori, N.: "Mineral assemblages of basalt in the lower mantle"J. Geophys. Res.. 105. 26037-26043 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oguri, K.: "Post-garnet transition in a natural pyrope : a multi-anvil study based on in situ X-ray diffraction and transmission electron microscopy"Physics of the Earth and Planetary Interiors. 122. 175-186 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 藤野清志: "分析電子顕微鏡による超高圧物質の解析"高圧力の科学と技術. 10. 312-318 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Miura, H.: "Crystal structure of the Al-rich new high pressure form"Amer. Mineral.. 85. 1799-1803 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomioka, N.: "Shock-induced transition of NaAlSi_3O_8 feldspar into a hollandite structure in a L6 chondrite"Geophys. Res. Lett.. 27. 3997-4000 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Miyajima, N.: "Potential host phase of aluminum and potassium in the Earth's lower mantle"Amer. Mineral.. 86. 740-746 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomioka, N.: "Microstructures and structural phase transition of (Mg, Fe)SiO_3 majorite"European Journal of Mineralogy. 14. 7-14 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Jiang, D.: "High temperature X-ray diffraction study of enstatite up to the melting point"Journal of Mineralogical and Petrological Sciences. 97. 20-31 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kubo, T.: "Mechanisms and kinetics of the post-spinel transformation in Mg_2SiO_4"Physics of the Earth and Planetary Interiors. 129. 153-171 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 三浦裕行: "粉末X線回折データからモンテカルロ法により結晶構造を導くプログラム"日本結晶学会誌. 44. 392-395 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Xie, Z.: "Natural occurrence of Fe_2SiO_4-spinel in the shocked Umbarger L6 chondrite"American Mineralogist. 87. 1257-1260 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomioka, N.: "The breakdown of diopside to Ca-rich-majorite and -glass in a shocked H chondrite"Earth and Planetary Science Letters. 208. 271-278 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kubo, T.: "Formation of metastable assemblages and mechanisms of the grain-size reduction in the postspinel transformation of Mg_2SiO_4."Geophys. Res. Lett.. 27. 807-810 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Funamori, N.: "Mineral assemblages of basalt in the lower mantle"J. Geophys. Res.. 105. 26037-26043 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Oguri, K.: "Post-garnet transition in a natural pyrope : a multi-anvil study based on in situ X-ray diffraction and transmission electron microscopy"Physics of the Earth and Planetary Interiors. 122. 175-186 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Fujino, K.: "Analyses of Ultrahigh Pressure Materials by an Analytical Electron Microscope"The Review of High Pressure Science and Technology. 10. 312-318

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Miura, H.: "Crystal structure of the Al-rich new high pressure form"Amer. Mineral.. 85. 1799-1803 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomioka, N.: "Shock-induced transition of NaAlSi_3O_8 feldspar into a hollandite structure in a L6 chondrite"Geophys. Res. Lett.. 27. 3997-4000 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Miyajima, N.: "Potential host phase of aluminum and potassium in the Earth's lower mantle"Amer. Mineral.. 86. 740-746 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomioka, N.: "Microstructures and structural phase transition of (Mg,Fe)SiO_3 majorite"European Journal of Mineralogy. 14. 7-14 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Jiang, D.: "High temperature X-ray diffraction study of enstatite up to the melting point"Journal of Mineralogical and Petroogical Sciences. 97. 20-31 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kubo, T.: "Mechanisms and kinetics of the post-spinel transformation in Mg_2SiO_4"Physics of the Earth and Planetary Interiors. 129. 153-171 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Miura, H.: "Structure Model-Assembly Program from X-ray Powder Diffraction Data Using Monte Carlo Method"Journal of the Crystallographic Society of Japan. 44. 392-395 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Xie, Z.: "Natural occurrence of Fe_2SiO_4-spinel in the shocked Umbarger L6 chondrite"American Mineralogist. 87. 1257-1260 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomioka, N.: "The breakdown of diopside to Ca-rich-majorite and -glass in a shocked H chondrite"Earth and Planetary Science Letters. 208. 271-278 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Jiang, D.: "High temperature X-ray diffraction study of enstatite up to the melting point"Journal of Mineralogical and Petrological Sciences. 97. 20-31 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kubo, T.: "Mechanisms and kinetics of the post-spinel transformation in Mg_2SiO_4"Physics of the Earth and Planetary Interiors. 129. 153-171 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 三浦 裕行: "粉末X線回折データからモンテカルロ法により結晶構造を導くプログラム"日本結晶学会誌. 44. 392-395 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Miyajima, N.: "Potential host phase of aluminum and potassium in the Earth's lower mantle"American Mineralogist. 86. 740-746 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kubo, T.: "Mechanisms and kinetics of the post-spinel transformation in Mg_2SiO_4"Physics of the Earth and Planetary Interiors. (in press).

    • Related Report
      2001 Annual Research Report
  • [Publications] Z. Xie: "High-pressure phases in shock-induced melt veins from the Umbarger L6 chondrite : constraints on shock conditions"Lunar and Planetary Science. XXXII. 1805pdf (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T. G. Sharp: "Shock-induced melt veins in chondrites : Crystallization history vs. shock history"Lunar and Planetary Science. XXXII. 2159pdf (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tomioka, N.: "Microstructures and structural phase transition of (Mg,Fe)SiO_3 majorite"European Journal of Mineralogy. 14. 7-14 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Jiang, D.: "High temperature X-ray diffraction study of enstatite up to the melting point"Journal of Mineralogical and Petrological Sciences. (in press). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 藤野清志: "分析電子顕微鏡による超高圧物質の解析"高圧力の科学と技術. 10. 312-318 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Miura, H.: "Crystal structure of the Al-rich new high pressure form"American Mineralogist. 85. 1799-1803 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Tomioka, N.: "Shock-induced transition of NaAlSi_3O_8 feldspar into a hollandite structure in a L6 chondrite"Geophysical Research Letters. 27. 3997-4000 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Miyajima, N.: "A host phase of aluminum and potassium in the Earth's lower mantle"American Mineralogist. (in press). (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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