コンドリュール冷却速度多様性の研究

• 研究課題/領域番号: 22540490
• 研究種目: 基盤研究(C)
• 配分区分: 補助金
• 応募区分: 一般
• 研究分野: 岩石・鉱物・鉱床学
• 研究機関: 東京大学
• 研究代表者: 宮本 正道 東京大学, 大学院・理学系研究科, 教授 (70107944)
• 研究期間 (年度): 2010 – 2012
• 研究課題ステータス: 完了 (2012年度)
• 配分額: 2,730千円 (直接経費: 2,100千円、間接経費: 630千円); 2012年度: 650千円 (直接経費: 500千円、間接経費: 150千円); 2011年度: 260千円 (直接経費: 200千円、間接経費: 60千円); 2010年度: 1,820千円 (直接経費: 1,400千円、間接経費: 420千円)
• キーワード: 隕石 / 冷却速度 / 熱変成温度 / コンドリュール / 拡散 / 原始太陽系 / 化学的ゾーニング / カンラン石

研究概要

隕石に含まれる球粒状のコンドリュールの成因と冷却速度は、原始太陽系星雲モデルに重要な制限条件を与える。本研究は、最も始源的な普通隕石と炭素質隕石中のコンドリュールに含まれるカンラン石のFe〓Mg化学的ゾーニングを測定し、主に拡散方程式を数値的に解く方法を用い,コンドリュール生成時の冷却速度を計算した。その結果、コンドリュールによって、冷却速度が大きく異なることが明らかになった。また、これらの計算用プログラムを、多くの研究者に配布した。

研究成果

• [雑誌論文] maximum temperature of parent-body thermal metamorphism for ALH77299 (H3.7) chondrite by analyzing Fe-Mg zoning of olivine (2012)
  • 著者名/発表者名: Miyamoto, M., and H. Kaiden
  • 雑誌名: Lunar Planet. Sci, XLIII, Abstract #1082, Lunar Plant. Inst.,Houston 巻: (CD-ROM)
• [雑誌論文] Mineralogy of stardust track 112 particle: Relation to amoeboid olivine aggregates (2012)
  • 著者名/発表者名: Komatsu, M., T. Fagan, T. Mikouchi, M. Miyamoto, M. Zolensky, and K. Ohsumi
  • 雑誌名: Lunar Planet. Sci, XLIII, Abstract #1654, Lunar Plant. Inst., Houston 巻: (CD-ROM)
• [雑誌論文] Redox states of some HED meteorites as inferred from iron micro-XANES analyses of plagioclase (2012)
  • 著者名/発表者名: Satake, W., P. C. Buchanan, T. Mikouchi, and M. Miyamoto
  • 雑誌名: Lunar Planet. Sci, XLIII, Abstract #1725, Lunar Plant. Inst., Houston 巻: (CD-ROM)
• [雑誌論文] Relative burial depth of nakhlites revisited (2012)
  • 著者名/発表者名: Mikouchi, T., J. Makishima, T. Kurihara, V. H. Hoffmann, and M. Miyamoto
  • 雑誌名: Lunar Planet. Sci, XLIII, Abstract #2363, Lunar Plant. Inst., Houston 巻: (CD-ROM)
• [雑誌論文] Evidence for incipientalteration in amoeboid olivine aggregates from the ungrouped carbonaceous chondrite NWA 1152 (2012)
  • 著者名/発表者名: Komatsu, M., T. J. Fagan, T. Mikouchi, and M. Miyamoto
  • 雑誌名: Antarctic Meteorites
• [雑誌論文] Burial depth of petrologic type3 chondrites in the 26Al heated parent body (2012)
  • 著者名/発表者名: Miyamoto, M., H. Kaiden, and T. Mikouchi
  • 雑誌名: Proc. 45th ISAS Lunar Planet. Symp.,45-03_Miyamoto.pdf 巻: (CD-ROM)
• [雑誌論文] Burial depth of petrologic type 3 chondrites in the 26Al heated parent body (2012)
  • 著者名/発表者名: Miyamoto, M.
  • 雑誌名: Proc. 45th ISAS Lunar and Planetary Symposium 巻: 45
• [雑誌論文] Evidence for incipient alteration in amoeboid olivine aggregates from the ungrouped carbonaceous chondrite NWA 1152 (2012)
  • 著者名/発表者名: Komatsu, M.
  • 雑誌名: Antarctic Meteorites 巻: XXXV ページ: 31-32
• [雑誌論文] maximum temperature of parent-body thermal metamorphism for ALH77299 (H3.7) chondrite by analyzing Fe-Mg zoning of olivine (2012)
  • 著者名/発表者名: Miyamoto, M.
  • 雑誌名: Lunar and Planetary Science 巻: XLII
• [雑誌論文] Maximum temperature of parent-body thermal metamorphism for ALH77299 (H3.7) chondrite by analyzing Fe-Mg zoning of olivine (2012)
  • 著者名/発表者名: Miyamoto M., Kaiden H.
  • 雑誌名: 43rd Lunar and Planetary ScienceConference 巻: 43
• [雑誌論文] Evidence for parent-bodythermal-metamorphism of CO3 chondrite by analyzing Fe-Mg zoning of olivine (2011)
  • 著者名/発表者名: Miyamoto, M. and H. Kaiden
  • 雑誌名: Lunar Planet. Sci., XLII, Abstract #1156, Lunar Planet. Inst., Houston 巻: (CD-ROM)
• [雑誌論文] Petrographic and chemical variation among the EH3 chondrites (2011)
  • 著者名/発表者名: Komatsu, M., T. J. Fagan, N. Ozaki, T. Mikouchi, and M. Miyamoto
  • 雑誌名: Lunar and Planet. Sci., XLII, Abstract#1764,Lunar Planet. Inst., Houston 巻: (CD-ROM)
• [雑誌論文] Redox state of some eucrites as inferred from iron micro-XANES analysis of plagioc1ase (2011)
  • 著者名/発表者名: Satake, W., P.C. Buchanan, T. Mikouchi, and M. Miyamoto
  • 雑誌名: Lunar Planet. Sci, XLII, Abstract #2590, Lunar Plant. Inst., Houston 巻: (CD-ROM)
• [雑誌論文] A TEM and FESEM Study of Two Stardust Cometary Particles Extracted From Tracks Tl11 and Tl12 (2011)
  • 著者名/発表者名: Komatsu, M., T. Mikouchi, T. J. Fagan, M. Miyamoto, M . E. Zolensky, and K. Ohsumi
  • 雑誌名: Antarctic Meteorites
• [雑誌論文] Redox state ofgeochemically-enriched shergottites as inferred from Fe micro-XANES analysis of maskelynite and plagioclase (2011)
  • 著者名/発表者名: Satake, W., T. Mikouchi, and M. Miyamoto
  • 雑誌名: Antarctic Meteorites
• [雑誌論文] Shock origin inferred for unusual textures in EH3 chondrites PCA82518 (2011)
  • 著者名/発表者名: Komatsu, M., T. Fagan, T. Mikouchi, and M. Miyamoto
  • 雑誌名: Meteoritics and Plant. Sci., 46, Suppl., A128.
• [雑誌論文] Temperature of parent-bodythermal-metamorphism of ALH77299 (H3.7) chondrite by analysis of Fe-Mg zoning of olivine (2011)
  • 著者名/発表者名: Miyamoto, M., and H. Kaiden
  • 雑誌名: Proc. 44th ISAS Lunar Planet. Symp.44-14, M.Miyamoto.pdf 巻: (CD-ROM)
• [雑誌論文] A TEM and FE-SEM study of two Stardust cometary particles extracted from Tracks T111 and T112 (2011)
  • 著者名/発表者名: Komatsu, et al.
  • 雑誌名: Antarctic Meteorites XXXIV 巻: XXXIV ページ: 42-43
• [雑誌論文] Temperature of perent-body thermal-metamorphism of ALH77299(H3.7) chondrite by analysis of Fe-Mg zoning of olivine (2011)
  • 著者名/発表者名: Miyamoto M., Kaiden H.
  • 雑誌名: eedings of the 44th ISAS Lunar and Planetary Sympo 巻: 44(CD-ROM) ページ: 44-14
• [雑誌論文] Evidence for parent-body thermal-metamorphism of CO3 chondrite by analyzing Fe-Mg zoning of olivine (2011)
  • 著者名/発表者名: Miyamoto M., Kaiden H
  • 雑誌名: Lunar and Planetary Science Conference XLII 巻: 42
• [雑誌論文] Antarctic lunar meteorites Yamato-793169, Asuka-881757, MIL 05035, and MET 01210 (YAMM): Launch pairing and possible cryptomare origin, Geochimica (2010)
  • 著者名/発表者名: Arai, T., B. R. Hawke, T. A. Giguere, K. Misawa, M. Miyamoto, and H. Kojima
  • 雑誌名: Cosmochimica. Acta 巻: 74 ページ: 2231-2248
  • 査読あり
• [雑誌論文] The Northwest Africa 1500 meteorite: Not a ureilite, maybe a brachinite (2010)
  • 著者名/発表者名: Goodrich, C. A., N. T. Kita, M. K. Spicuzza, J. W. Valley, J. Zipfel, T. Mikouchi, and M. Miyamoto
  • 雑誌名: Meteoritics and Planet. Sci. 巻: 45 ページ: 1906-1928
  • 査読あり
• [雑誌論文] Iron micro-XANES measurement of maskelynite in shergottites: An update (2010)
  • 著者名/発表者名: Satake, W., T. Mikouchi, and M. Miyamoto
  • 雑誌名: Lunar and Planetary Science, XLI, abstract#1902,Lunar Planet. lnst., Houston 巻: (CD-ROM)
• [雑誌論文] Micro FT/IR analysis of brown olivines in Martian meteorites (2010)
  • 著者名/発表者名: Koizumi, E., T.Mikouchi, A. Monkawa, T. Kurihara, and M. Miyamoto
  • 雑誌名: Lunar and Planetary Science, XLI, abstract#1575, Lunar Planet. Inst., Houston 巻: (CD-ROM)
• [雑誌論文] Hightemperature shock experiment of San Carlos olivine: Implications for the formation of nano-partic1es in olivine from Martian meteorites Lunar and Planetary Science (2010)
  • 著者名/発表者名: Kurihara, T., T. Mikouchi, A. Yamaguchi, T. Sekine, and M. Miyamoto
  • 雑誌名: XLI, abstract#1655, Lunar Planet. lnst., Houston 巻: (CD-ROM)
• [雑誌論文] Petrogenetic relationship of geochemically- enriched shergottites as inferred from MELTS Calculation (2010)
  • 著者名/発表者名: Satake, W., T. Mikouchi, and M. Miyamoto
  • 雑誌名: Antarctic Meteorites
  • NAID: 130004601562
• [雑誌論文] Spectral map analysis of brown olivine in martian meteorites by micro FT/IR, (2010)
  • 著者名/発表者名: Koizumi, E., T. Mikouchi, A . Monkawa,T. Kurihara, and M. Miyamoto
  • 雑誌名: Meteoritics and Planet. Sci. 巻: 45, Suppl.
• [雑誌論文] Mineralogy of five particles from the Stardust cell C2067 and C2081:Comparative study to other particles from the same track (2010)
  • 著者名/発表者名: Komatsu, M., T. Mikouchi, M. Miyamoto, T.Fagan, and M. Zolensky
  • 雑誌名: Meteoritics and Planet. Sci. 巻: 45, Suppl.
• [雑誌論文] Iron micro XANES analysis of achondritic plagioclase: Implications for the redox states (2010)
  • 著者名/発表者名: Satake, W., T. Mikouchi, and M. Miyamoto
  • 雑誌名: Meteoritics and Plant. Sci. 巻: 45, Suppl.
• [雑誌論文] The period of thermal metamorphism of Yamato-791717 CO3.6 chondrite by analysis of Fe-Mg zoning of olivine (2010)
  • 著者名/発表者名: Miyamoto, M. and H. Kaiden
  • 雑誌名: Proc.43rd ISAS Lunar Planet. Symp.,12miyamoto.pdf 巻: (CD-ROM)
• [雑誌論文] Mineralogy of particles from two stardust tracks : Comparisons with other particles from the same tracks (2010)
  • 著者名/発表者名: Komatsu M., et al
  • 雑誌名: Meteoritics and Planetary Science 巻: 45
• [雑誌論文] The period of thermal metamorphism of Yamato-791717 CO3.6 ohondrite by analysis of Fe-Mg zoning of olivine (2010)
  • 著者名/発表者名: Miyamoto M., Kaiden H
  • 雑誌名: Proceedings of the 43rd ISAS Lunar and Planetary Symposium 巻: 43
• [学会発表] Maximum temperature of parent-body thermal metamorphism for ALH77299 (H3.7) chondrite by analyzing Fe-Mg zoning of olivine (2012)
  • 著者名/発表者名: Miyamoto M., Kaiden H.
  • 学会等名: 43rd Lunar and Planetary ScienceConference
  • 発表場所: The Woodlands Waterway Marriott Hotel and Convention Center, USA
  • 年月日: 2012-03-22
• [学会発表] maximum temperature of parent-body thermal metamorphism for ALH77299 (H3.7)chondrite by analyzing Fe-Mg zoning of olivine (2012)
  • 著者名/発表者名: Miyamoto, M., and H. Kaiden
  • 学会等名: 43nd Lunar and Planetary Science Conference
  • 発表場所: Lunar Plant. Inst.,March 20,2012,Houston.USA