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原始太陽系星雲内における難揮発性包有物の生成過程に関する実験的研究

Research Project

Project/Area Number03J10423
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field 岩石・鉱物・鉱床学
Research InstitutionThe University of Tokyo
Research Fellow 高橋 睦美  The University of Tokyo, 大学院・理学系研究科, 特別研究員(PD)
Project Period (FY) 2003 – 2007
Project Status Completed(Fiscal Year 2007)
Budget Amount *help
¥4,878,292 (Direct Cost : ¥4,878,292)
Fiscal Year 2007 : ¥557,292 (Direct Cost : ¥557,292)
Fiscal Year 2006 : ¥1,100,000 (Direct Cost : ¥1,100,000)
Fiscal Year 2005 : ¥1,100,000 (Direct Cost : ¥1,100,000)
Fiscal Year 2004 : ¥1,021,000 (Direct Cost : ¥1,021,000)
Fiscal Year 2003 : ¥1,100,000 (Direct Cost : ¥1,100,000)
Keywords隕石 / 変成 / 炭素質コンドライト / 難揮発性包有物 / EBSD / 惑星物質科学 / コンドライト
Research Abstract

CVコンドライト隕石は、炭素質コンドライト種の中でも最も数多く見つかっている隕石種であり、その中に含まれる物質にそれぞれの形成過程については多く研究がなされている。しかしながら、そえぞれの隕石の鉱物学的特徴にはバリエーションがある為、CVコンドライトの母天体モデルについては全く明らかになっていない。本研究では、惑星形成期における太陽系の進化を明らかにする為、CVコンドライト母天体の形成・進化モデルについて検証した。
本研究の特徴は、これまで全く研究されることのなかったY-86009CVコンドライト隕石の鉱物学的特徴に着目した点である。CVコンドライトは、これまで酸化的Allendeタイプ、酸化的Baliタイプ、還元的タイプの3種類あると考えられていたが、Y-86009隕石はどのタイプにも当てはまらず、3種の中間的存在であることが明らかになった。このことは、3種類がそれぞれ関連しており、各タイプは一つの母天体上で分化されたことを示唆している。また、固体物質が形成された後の2次的変成の場所については、星雲内vs.母天体上と議論が分かれているが、Y-86009隕石の特徴は、変成が母天体上で起こったことを支持する結果を示した。本研究においてY-86009隕石と他のCVコンドライト隕石の鉱物学的特徴を系統的に比較研究し、CVコンドライト母天体モデルを考察した結果を、学会に於いて発表した。

Report

(5results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • 2003 Annual Research Report

Research Products

(21results)

All 2007 2006 2005 2004 Other

All Journal Article Presentation Publications

  • [Journal Article] Amoeboid Olivine AggrfegaAmoeboid Olivine Aggregates in the CV Cabonaceous Chondrie Yamato-86751tes in the CV Carbonaceous Chondrite Yamato-867512007

    • Author(s)
      Komatsu M., Mikouchi T., Krot A.N., and Miyamoto M.
    • Journal Title

      日本鉱物科学会予稿集

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Secondary alteration of Y-86751-Relation to other CV Chondrites2007

    • Author(s)
      Komatsu M., Mikouchi T., Krot A.N., and Miyamoto M.
    • Journal Title

      Proceedings of the ISAS Lunar and Planetary Science Symposium 38

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mineralogical studies of amoeboid olivine aggregates in the oxidized CV chondrite Y-86009.2006

    • Author(s)
      Komatsu M., Fagan T., Miyamoto M., Krot A.N., Mikouchi T.
    • Journal Title

      The Japan Geoscience Union meeting 2006

      Pages : 155-17

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Mineralogy and petrography of the oxidized CV chondrite Yamato 86009.2006

    • Author(s)
      Komatsu M., Fagan T., Miyamoto M., Krot A.N., Mikouchi T., Keil K.
    • Journal Title

      Antarctic Meteorites XXX

      Pages : 42-43

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Amoeboid olivine aggretates in Yamato-86009 CV chondrite; Evidence for IN situ aqueous alteration.2006

    • Author(s)
      Komatsu M., Fagan T., Miyamoto M., Krot A.N., Mikouchi T., Keil K.
    • Journal Title

      Meteoritics & Planetary Science 41

      Pages : 5138-5138

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Mineralogy and petrography of the oxidized CV chondrite Yamato 86009.2006

    • Author(s)
      Komatsu M., Fagan T., Miyamoto M., Krot A.N., Mikouchi T., Keil K.
    • Journal Title

      Proceedings of the ISAS Lunar and Planetary Science Symposium 37 (In press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Amoeboid olivine aggregates in the Yamato-86009 CV3 chondrite.2006

    • Author(s)
      Komatsu M., Fagan T., Miyamoto M., Krot A.N, Mikouchi T.
    • Journal Title

      Proceedings of the 35th Lunar and Planetary Science Conference (CD-ROM)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Electron back-scatter difraction (EBSD) analysis of two unusual minerals in carbonaceous chondrites2006

    • Author(s)
      Mikouchi T., Zolensky M., Tachikawa O., Komatsu M., Ivanova M.A., Le L, Gounelle M.
    • Journal Title

      Proceedings of the 35th Lunar and Planetary Sc enc Conference (CD-ROM)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Mineralogical study of low-Ca pyroxenes of amoeboid olivine aggregates in Y 81020.2005

    • Author(s)
      Komatsu M., Krot A.N., Miyamoto M., Keil K.
    • Journal Title

      Antarctic Meteorite XXIX

      Pages : 34-35

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Low-Ca pyroxenes of amoeboid olivine aggregates in Y-81020 C03.0 chondrite.2005

    • Author(s)
      Komatsu M., Krot A.N., Miyamoto M., Keil K.
    • Journal Title

      Proceedings of the ISAS Lunar and Planetary Science Symposium 36

      Pages : 92-95

    • Related Report
      2005 Annual Research Report
  • [Journal Article] EBSD Study of Amoeboid Olivine Aggregates with Low-Ca Pyroxenes in the Y-81020 CO3.0 Chondrite2005

    • Author(s)
      Komatsu M., Krot A.N., Miyamoto M., Keil K.
    • Journal Title

      Proceedings of the 35th Lunar and Planetary Science Conference (CD-ROM)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Degree of Alteration of Amoeboid Olivine Aggregates in CV Chondrites2004

    • Author(s)
      Komatsu M., Krot A.N., Mikouchi T., Tagai T., Miyamoto M, Keil K.
    • Journal Title

      Proceedings of the ISAS Lunar and Planetary Science Symposium 37

      Pages : 51-54

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Electron Backscatter Diffraction and Forescatter Electron Image Analyses of the Governador Valadares Nakhlite2004

    • Author(s)
      Mikouchi T., Monkawa A., Tachikawa O., Yamada I, Komatsu M., Koizumi E., Chokai J., Miyamoto M.
    • Journal Title

      Meteoritics & Planetary Science 39

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Amoeboid Olivine Aggregates and Related Objects in Carbonaceous Chondrites : Records of Nebular and Asteroid Processes2004

    • Author(s)
      Krot A.N., Petaev M.I., Russel S.S., Itoh S., gan T., Yurimoto H., Chizmadia L., Weisberg M., Komatsu M., Ulyanov A.A., Keil K.
    • Journal Title

      Chemie der Erde Geochemistry 64

      Pages : 185-282

    • Related Report
      2004 Annual Research Report
  • [Presentation] 炭素質CVコンドライト隕石の変成履歴についての考察2007

    • Author(s)
      小松 睦美
    • Organizer
      日本鉱物科学会2007年度年会
    • Place of Presentation
      東京
    • Year and Date
      2007-09-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] Secondary alteration of Y-86751-Relation to other CV chondrites2007

    • Author(s)
      小松 睦美
    • Organizer
      ISAS Lunar and Planetary Science Symposium
    • Place of Presentation
      神奈川
    • Year and Date
      2007-07-26
    • Related Report
      2007 Annual Research Report
  • [Publications] Komatsu., Miyamoto M., Mikouchi T., Krot A.N., Keil K.: "Thermal History of Amoeboid Olivine Aggregates : An Experimental Study."Evolution of Solar System Materials : A New Perspective from Antarctic Meteorites. 58-59 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Komatsu M., Miyamoto M., Krot A.N., Keil K.: "EBSD Study of Amoeboid Olivine Aggregates in the Y81020 CO3.0 Chondrite"Meteoritics & Planetary Science. Vol.38. 5136 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Komatsu., Miyamoto M., Mikouchi T., Krot A.N., Keil K.: "Experimental Study of Amoeboid Olivine Aggregates."Proceedings of the ISAS Lunar and Planetary Science Symposium. Vol.36. 45-48 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Komatsu M., Miyamoto M., Kogure T., Krot A.N., Keil K: "The Application of EBSD to the Study of Amoeboid Olivine Aggregates"Geochimica Cosmochimica Acta. Vol.67.No.18s. A229 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Komatsu M., Krot A.N., Mikouchi T., Tagai T., Miyamoto M., Keil K.: "Amoeboid Olivine Aggregates in the NWA 760 CV3 Chondrite"Proceedings of the 35th Lunar and Planetary Science Conference. (CD-ROM). 1537 (2004)

    • Related Report
      2003 Annual Research Report

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Published : 2003-04-01   Modified : 2016-04-21  

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