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2008 Fiscal Year Final Research Report

Age rejuvenation mechanism of simulated fault rocks at frictional melting indicated from noble gas signatures

Research Project

  • PDF
Project/Area Number 18740348
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Geochemistry/Astrochemistry
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

SATO Keiko  Japan Agency for Marine-Earth Science and Technology, 地球内部変動研究センター, 技術研究副主任 (40359196)

Project Period (FY) 2006 – 2008
Keywords年代のリセット / 摩擦溶融岩 / 希ガス同位体
Research Abstract

天然の断層岩における希ガスを使用した年代測定の適用は、断層岩に含まれる生成鉱物の熟成度により異なり、断層の摩擦運動に起因する摩擦熱によって主に解釈される。また、断層岩は全溶融の判断が難しいため、容易に正しい年代を得ることはできない。そこで、断層岩を再現実験で検討し、摩擦熔融試験による原岩の熱変成及び変形破壊が、希ガス同位体測定を行い、希ガスの放出や吸着で岩石の年代が若返る仕組みを明らかにした。

  • Research Products

    (13 results)

All 2009 2008 2007 2006 Other

All Journal Article (5 results) (of which Peer Reviewed: 3 results) Presentation (7 results) Remarks (1 results)

  • [Journal Article] Volatile gas analysis released from simulated faults during frictional melting : experimental2009

    • Author(s)
      K. Sato, T. Hirose, H. Tamura, H. Kumagai, K. Mizoguchi
    • Journal Title

      JAMSTEC REPORT (印刷中)

    • Peer Reviewed
  • [Journal Article] Experimental study for noble gas release and exchange under high-speed frictional melting2009

    • Author(s)
      K. Sato, H. Kumagai, T. Hirose, H. Tamura, K. Mizoguchi, T. Shimamoto
    • Journal Title

      Chemical Geology (印刷中)

    • Peer Reviewed
  • [Journal Article] レーザー融解K-Ar法による極微量年代測定法の開発2008

    • Author(s)
      佐藤佳子、田村肇、川畑博、熊谷英憲
    • Journal Title

      地球化学 42

      Pages: 179-199

    • Peer Reviewed
  • [Journal Article] A K-Ar age reset of frictionally melted gabbro and detect for degassed noble gas2007

    • Author(s)
      K. Sato, T. Hirose, H. Tamura, H. Kumagai, K. Mizoguchi, T. Shimamoto
    • Journal Title

      GoldSchmidt 2007, Geochimica et Cosmochimica Acta 71

      Pages: A878

  • [Journal Article] Fine step release of helium argon and carbon dioxide from a MORB glass by vacuum crushing and the potential of relocatable noble gas mass spectrometer for preliminary analysis for noble gas research2006

    • Author(s)
      H. Tamura, H. Kumagai, K. Sato
    • Journal Title

      Goldschmidt2006, Geochimica et Cosmochimica Acta 70

      Pages: A635

  • [Presentation] 斑レイ岩の摩擦溶融実験による仮想断層岩の脱ガスによるK-Ar年代系の若返りとリセット2008

    • Author(s)
      佐藤佳子
    • Organizer
      地球惑星連合大会2008
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2008-05-25
  • [Presentation] K-Ar, Ar-Ar, FT ages and degassing process of two type of andesitic magma2008

    • Author(s)
      K. Sato
    • Organizer
      European Geosciences Union 2008
    • Place of Presentation
      ウイーン国際会議場
    • Year and Date
      2008-04-18
  • [Presentation] Experimental study for noble gas release and exchange under high-speed frictional melting2007

    • Author(s)
      K. Sato
    • Organizer
      9th International Conference on Gas Geochemistry
    • Place of Presentation
      台湾大学
    • Year and Date
      2007-10-04
  • [Presentation] レーザー溶融K-Ar年代測定の試み2007

    • Author(s)
      佐藤 佳子
    • Organizer
      2007年度日本地球化学会年会
    • Place of Presentation
      岡山大学
    • Year and Date
      2007-09-20
  • [Presentation] A K-Ar age reset of frictionally melted gabbro and detect for degassed noble gas2007

    • Author(s)
      K. Sato
    • Organizer
      Goldschmidt Conference
    • Place of Presentation
      ケルン大学
    • Year and Date
      2007-08-21
  • [Presentation] ハンレイ岩の摩擦溶融実験によるK-Ar年代のリセットと脱ガスの検出2007

    • Author(s)
      佐藤佳子
    • Organizer
      日本地球惑星科学連合2007年大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2007-05-20
  • [Presentation] Fine step release of helium, argon, and carbon dioxide from a MORB glass by vacuum crushing and the potential of relocatable noble gas mass spectrometer for preliminary analysis for noble gas research2006

    • Author(s)
      H. Tamura
    • Organizer
      Goldschmidt Conference 2006
    • Place of Presentation
      オーストラリア国立大学 (ANU)
    • Year and Date
      2006-08-26
  • [Remarks]

    • URL

      http://www.jamstec.go.jp/ifree/jp/05result/IFREE_Report_for_2005-2006/5_IFREE5-1.pdf

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Published: 2010-06-10   Modified: 2016-04-21  

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