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2010 Fiscal Year Self-evaluation Report

Anatomy of protosolar system

Research Project

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Project/Area Number 20002002
Research Category

Grant-in-Aid for Specially Promoted Research

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Mathematics and Physics
Research InstitutionHokkaido University

Principal Investigator

YURIMOTO Hisayoshi  Hokkaido University, 大学院・理学研究院, 教授 (80191485)

Project Period (FY) 2008 – 2012
Keywords地球化学 / 宇宙化学 / 惑星起源・進化 / 同位体 / 隕石
Research Abstract

太陽系形成以前に宇宙空間に存在していた物質が隕石中に現存している事が特定されたことにより,我々の自然史を太陽系創世時代を越え先太陽系時代に至るまで実証できる可能性が大きくなっている.本研究では,我々により推進してきた同位体顕微鏡による隕石の微細解剖学をさらに発展させ,隕石のいわゆる『解体新書』を作成する。その成果に基づき,太陽系創世時代とそれに直接つながる先太陽系時代の物質進化を解明し,宇宙における太陽系の特殊性と一般性を区分した新しい太陽系起源論を構築する。そして物質に刻まれた証拠に立脚した汎惑星系起源の構築に挑戦する。具体的には,以下の課題を研究する.
(1)隕石中の先太陽系時代の物質を系統的に探索し,その物質の同位体組成と形成年代を分析し,銀河内の物質循環を解析する.
(2)太陽系における酸素同位体異常とその他元素の同位体的均質性の起源と進化の解明を行い,分子雲時代から太陽系創成時代に至る物質進化のダイナミックスを解析する.
(3)太陽系創世時代における物質大循環に伴う物質進化とそのメカニズムを解析する.

  • Research Products

    (13 results)

All 2011 2010 2009 2008

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results) Book (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Hydrogen isotope ratios in lunar rocks indicate delivery of cometary water to the Moon.2011

    • Author(s)
      Greenwood J.P., Itoh S., Sakamoto N., Warren P., Taylor L., Yurimoto H.
    • Journal Title

      Nature Geoscience 4

      Pages: 79-82

    • Peer Reviewed
  • [Journal Article] Ultra-high performance multi-turn TOF-SIMS system with a femto-second laser for post-ionization : investigation of the performance in linear mode.2010

    • Author(s)
      Ishihara M., Ebata S., Kumondai K., Mibuka R., Uchino K., Yurimoto H.
    • Journal Title

      Surface and Interface Analysis 42

      Pages: 1598-1602

    • Peer Reviewed
  • [Journal Article] Analysis of the noise properties of a solid-state SCAPS ion imager and development of software noise reduction.2010

    • Author(s)
      Yamamoto K., Sakamoto N., Yurimoto H.
    • Journal Title

      Surface and Interface Analysis 42

      Pages: 1603-1605

    • Peer Reviewed
  • [Journal Article] Non-chondritic oxygen isotopic component of metals in a noble-gas-rich chondrite-vestige of stellar wind from the protosun?2009

    • Author(s)
      Fujimoto, K., Itoh, S., Ebata, S., Yurimoto, H.
    • Journal Title

      Geochemical Journal 43

      Pages: 11-15

    • Peer Reviewed
  • [Journal Article] Mineralogical characterization of a unique material having heavy oxygen isotope anomaly in matrix of the primitive carbonaceous chondrite Acfer 094.2008

    • Author(s)
      Seto, Y., Sakamoto, N., Fujino, K., Kaito, T., Oikawa, T., Yurimoto, H.
    • Journal Title

      Geochimica et Cosmochimica Acta 72(11)

      Pages: 2723-2734

    • Peer Reviewed
  • [Presentation] Oxygen and Magnesium Isotopic Compositions of Asteroidal Materials Returned from Itokawa by the Hayabusa Mission.2011

    • Author(s)
      Yurimoto H.
    • Organizer
      42nd Lunar and Planetary Science Conference
    • Place of Presentation
      The Woodlands, Texas, USA
    • Year and Date
      20110307-20110311
  • [Presentation] Oxygen isotope analysis of meteorites : the procedures and contribution to solar system evolution.2011

    • Author(s)
      Yurimoto, H.
    • Organizer
      Workshop on Cosmo-, Geo- and Environmental Research with NanoSIMS
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      20110118-20110119
  • [Presentation] Isotopic compositions of fluid inclusions in halites from ordinary chondrites.2010

    • Author(s)
      Yurimoto, H.
    • Organizer
      73rd Annual Meeting of the Meteoritical Society
    • Place of Presentation
      New York, U.S.A.
    • Year and Date
      20100726-20100730
  • [Presentation] Implanted solar wind oxygen about 4.6 billion years ago.2009

    • Author(s)
      Yurimoto, H.
    • Organizer
      5th International Workshop on High-Resolution Depth Profiling, HRDP-5
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      20091115-20091119
  • [Presentation] Development of isotope microscope and in-situ observation of presolar grains and other isotope anomalous materials.2008

    • Author(s)
      Yurimoto, H.
    • Organizer
      5th Biennial Geochemical SIMS Workshop (BGSW5)
    • Place of Presentation
      Madison, USA)
    • Year and Date
      20080613-20080615
  • [Book] Oxygen in the solar system2008

    • Author(s)
      Yurimoto, H., Krot, A.N., Choi, B.-G., Aleon, J., Kunihiro, T., Brearley, A.J.
    • Total Pages
      141-218
    • Publisher
      Mineralogical Society of America
  • [Book] 宇宙・惑星化学2008

    • Author(s)
      圦本尚義
    • Total Pages
      82-111
    • Publisher
      培風館
  • [Patent(Industrial Property Rights)] 集束イオンビーム装置2009

    • Inventor(s)
      坂口清志, 圦本尚義
    • Industrial Property Rights Holder
      日本電子株式会社, 北海道大学
    • Industrial Property Number
      特許願,特願2009-216413
    • Filing Date
      2009-09-18

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Published: 2012-03-09   Modified: 2016-04-21  

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