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2010 Fiscal Year Self-evaluation Report

Determination of the Os isotopic compositions of primary arc magma using chromite and estimation of slab components contribution

Research Project

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Project/Area Number 20340158
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geochemistry/Astrochemistry
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

SUZUKI Katsuhiko  Japan Agency for Marine-Earth Science and Technology, 地球内部ダイナミクス領域, チームリーダー (70251329)

Project Period (FY) 2008 – 2011
Keywords地殻・マントル化学 / 沈み込み帯
Research Abstract

マントルと地殻とのオスミウム(Os)同位体比のコントラストは非常に大きいため,島弧火山岩のOs同位体は沈み込むスラブからの物質のリサイクルを検証するトレーサーとして非常に有効である。しかしながら,マグマ上昇過程での地殻物質の同化作用によって初生マグマのOs同位体はマスクされ,多くの場合に噴出時には初生情報を失ってしまう。そのため,Os同位体の島弧プロセスの解明への応用は進んでいない。
本研究では日本列島とその周辺の島弧火山岩から,マグマの分別過程の初期に結晶化し,Osが濃集するクロマイトを分離し,そのOs同位体を分析することで,始源的島弧マグマのOs同位体組成を決める。それによって,スラブ物質から島弧マグマに寄与する例と寄与しない例を明確にし,スラブ物質の島弧マグマへのフラックスを正確に計算し,島弧での物質循環モデルを確立する。

  • Research Products

    (12 results)

All 2011 2010 2009 2008

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (5 results) Book (1 results)

  • [Journal Article] Flux-Free Fusion of Silicate Rock Preceding Acid Digestion for ICP-MS Bulk Analysis.2011

    • Author(s)
      K.Shimizu, Q.Chang, K.Nakamura
    • Journal Title

      Geostandards and Geoanalytical Research 35

      Pages: 45-55

    • Peer Reviewed
  • [Journal Article] Osmium behavior in a subduction system elucidated from Chromian-spinel sands from Bonin island beaches2011

    • Author(s)
      K.Suzuki, R.Senda, K.Shimizu
    • Journal Title

      Geology in press

    • Peer Reviewed
  • [Journal Article] Geochemical characteristics and origin of the HIMU endmember : A possible mantle plume source in the lower mantle2011

    • Author(s)
      T.Hanyu, Y.Tatsumi, R.Senda, T.Miyazaki, Qing Chang, Y.Hirahara, T.Takahashi, H.Kawabata, K.Suzuki, J.Kimura, S.Nakai
    • Journal Title

      Geochem.Geophys.Geosys. 12

      Pages: Q0AC09,doi:10.1029/2010GC003252.

    • Peer Reviewed
  • [Journal Article] Re-Os geochronology of the Iimori Besshi-type massive sulfide deposit in the Sanbagawa Belt, Japan,2010

    • Author(s)
      T.Nozaki, Y.Kato, K.Suzuki
    • Journal Title

      Geochim.Cosmochim. Acta, 74

      Pages: 4322-4331

    • Peer Reviewed
  • [Journal Article] New insights into the origin of O-Hf-Os isotope signatures in arcs lavas from Tonga-Kermadec.2009

    • Author(s)
      S.Turner, M.Handler, I.Bindeman, K.Suzuki
    • Journal Title

      Chem.Geol. 266

      Pages: 3-4

    • Peer Reviewed
  • [Journal Article] Non-destructive discovery of highly siderophile element microphases within mantle peridotite.2008

    • Author(s)
      T.Kogiso, K.Suzuki, T.Suzuki, K.Shinotsuka, K.Uesugi, A.Takeuchi, Y.Suzuki
    • Journal Title

      Geochem.Geophys.Geosys. 9

      Pages: Q03018,doi:10.1029/2007GC001888.

    • Peer Reviewed
  • [Presentation] Differences between boninite and tholeiite primary magmas in Izu-Bonin-Mariana arc : constraints from an Os isotope perspective2010

    • Author(s)
      R. Senda, K. Shimizu, and K. Suzuki
    • Organizer
      2010 AGU Fall Meeting
    • Place of Presentation
      San Francisco
    • Year and Date
      2010-12-13
  • [Presentation] Evolution of Picritic Basalts in Arc Settings : Implication from Os Isotopes of Cr-Spinel and Whole-Rocks from Kume-Jima2009

    • Author(s)
      R.Senda, K.Suzuki, K.Shimizu, R.Shinjo
    • Organizer
      Central Ryukyu Arc, Goldschumidt conference 2009
    • Place of Presentation
      Davos
    • Year and Date
      2009-06-26
  • [Presentation] 瀬戸内火山帯小豆島の高Mg安山岩と玄武岩のOs同位体比:スラブからのリサイクルと地殻の同化作用2009

    • Author(s)
      鈴木勝彦,仙田量子,清水健二,巽好幸
    • Organizer
      地球惑星科学関連学会2009年連合大会
    • Place of Presentation
      幕張
    • Year and Date
      2009-05-19
  • [Presentation] Os isotopic compositions of primitive magma of high-Mg andesite in the Setouchi volcanic belt.2008

    • Author(s)
      K. Suzuki, R. Senda, K. Shimizu and Y. Tatsumi
    • Organizer
      Goldschmidt 2008
    • Place of Presentation
      Vancouver
    • Year and Date
      2008-07-15
  • [Presentation] Cr-spinels of boninites and tholeiites in Izu-Bonin arc : implications for contribution of ancient depleted mantle and slab-derived component to arc magma.2008

    • Author(s)
      K.Suzuki, R.Senda, K.Shimizu
    • Organizer
      AOGS Annual General Meeting
    • Place of Presentation
      釜山
    • Year and Date
      2008-06-16
  • [Book] 地球化学講座第8巻「地球化学実験法」(4.7章質量分析(固体元素).2010

    • Author(s)
      鈴木勝彦
    • Total Pages
      332(170-184)
    • Publisher
      培風館

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Published: 2012-02-13   Modified: 2016-04-21  

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