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Experimental study on boron cycling in the upper mantle

Research Project

Project/Area Number 18740346
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Geochemistry/Astrochemistry
Research InstitutionOkayama University

Principal Investigator

OOTA Tsutomu  Okayama University, 地球物質科学研究センター, 助手 (80379817)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥2,980,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2007: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2006: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywords地球化学 / 岩石鉱物学 / 地殻・マントル物質 / 電気石 / ホウ素 / リチウム / 二次イオン質量分析装置(SIMS) / 岩石・鉱物・鉱床学 / SIMS / 高圧実験
Research Abstract

地球という惑星の大部分はマントルで占められている.このマントルの活動によって形成された表層の物質は,プレート運動によって沈み込み帯からマントルへと戻っていく.その際,ある特定の化学成分は表層物質に濃集し,沈み込む際には表層物質から取り去られてマントルには戻ってこない.このような物質循環によって地球は進化してきた.本研究では,表層物質の沈み込み過程を高温高圧実験によって再現したり,マントル深部へ沈み込んだ岩石の化学組成を分析しりして,表層物質がマントル深部へ沈み込んでいく際に,ホウ素(およびリチウム)という元素がどのような挙動をするのかを明らかにし,地球マントルの化学進化の理解に貢献した.

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (9 results)

All 2009 2008 2007 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (4 results) Remarks (2 results)

  • [Journal Article] Boron cycling by subducted lithosphere ; insights from diamondiferous tourmaline from the Kokchetav ultrahigh-pressure metamorphic belt2009

    • Author(s)
      Ota T., Kobayashi K., Kunihiro T., Nakamura E.
    • Journal Title

      Geochimica et Cosmochimica Acta 72

      Pages: 3531-3541

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Boron cycling by subducted lithosphere : insights from diamondiferous tourmaline from the Kokchetav ultrahigh-pressure metamorphic belt2009

    • Author(s)
      Ota T., Kobayashi K., Kunihiro T., Nakamura E.
    • Journal Title

      Geochimica et Cosmochimica Acta 72

      Pages: 3531-3541

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tourmaline brekdown in a pelitic system: implications for boron cycling though subduction zones2008

    • Author(s)
      Ota, T., Katsura, T., Kobayashi, K., Nakamura, E.
    • Journal Title

      Contributions to Mineralogy and petrology 155

      Pages: 19-32

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] プレート沈み込みによるマントルへのホウ素輸送:含ダイアモンド電気石のホウ素同位体組成とその意義(招待講演)2008

    • Author(s)
      太田努,小林桂,中村栄三
    • Organizer
      日本地球化学会
    • Place of Presentation
      東京
    • Year and Date
      2008-09-17
    • Related Report
      2008 Final Research Report
  • [Presentation] プレート沈み込みによるマントルヘのホウ素輸送 : 含ダイアモンド電気石のホウ素同位体組成とその意義2008

    • Author(s)
      太田努, 小林桂, 中村栄三
    • Organizer
      日本地球化学会
    • Place of Presentation
      東京
    • Year and Date
      2008-09-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] Boron cycling by subducted lithosphere; insights from boron-isotope compositions of the Kokchetav tourmalines2007

    • Author(s)
      Ota. T., Kobayashi K., Moriguti T., Nakamura E.
    • Organizer
      American Geophysical Union. 2007 Fall Meeting
    • Place of Presentation
      San Francisco. USA
    • Year and Date
      2007-12-13
    • Related Report
      2007 Annual Research Report
  • [Presentation] Boron in deep subduction zone inferred from boron isotopic compositions of microdiamond-bearing tourmaline2007

    • Author(s)
      Ota. T., Nakamura E.
    • Organizer
      日本地球惑星科学連合2007年大会
    • Place of Presentation
      幕張(千葉)
    • Year and Date
      2007-05-19
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://homepage.mac.com/otatsutomu/

    • Related Report
      2008 Final Research Report
  • [Remarks]

    • URL

      http://homepage.mac.com/otatsutomu/

    • Related Report
      2008 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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