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Development of the new Raman geobarometer for high-pressure and ultrahigh-pressure metamorphic rocks

Research Project

Project/Area Number 19K04037
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 17040:Solid earth sciences-related
Research InstitutionWaseda University (2020-2021)
Kyoto University (2019)

Principal Investigator

Taguchi Tomoki  早稲田大学, 教育・総合科学学術院, 専任講師 (60791704)

Co-Investigator(Kenkyū-buntansha) 纐纈 佑衣  名古屋大学, 環境学研究科, 講師 (20726385)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsラマン分光分析 / 藍晶石 / 石英 / 残留圧力 / 地質圧力計 / 変成岩 / コース石 / 高圧変成岩 / FIB-TEM
Outline of Research at the Start

岩石に記録された圧力情報は、地球内部で起こる様々な地球科学現象を解読する上で必須データである。岩石の形成圧力見積もりは熱力学モデルを用いた計算が主である。しかし、天然の岩石は複雑な系であり、不確定要素を多く含む熱力学的変数を用いた圧力解析のみで、岩石の形成圧力値を正確かつ簡便に決定することには限界がある。本研究では、藍晶石内に存在するシリカ包有物の「残留圧力」に焦点を当てる。特に、残留圧力の方位異方性を考慮した解析と理論的な数値計算モデリングを行い、様々な環境で形成された高圧-超高圧変成岩の圧力条件を迅速・簡便・精密に決定できる「新しいラマン地質圧力計」の開発を目指す。

Outline of Final Research Achievements

Pressure estimation of metamorphic rocks generally depends on the thermodynamic approach. However, this approach may not be applicable in some cases because the natural rock is a complex system. In this study, we challenged to develop a new Raman geobarometer for high-pressure and ultrahigh-pressure metamorphic rocks, using a micro-Raman spectroscopy. The studied samples were kyanite-bearing quartz eclogites from the Gongen area (Sanbagawa belt, southwest Japan). We comprehensively verified the Raman spectra of quartz inclusions in matrix kyanite grains. Based on the results, we examined minutely numerical models of residual pressures, and constructed a new Raman geobarometer for the quartz-inclusions-in-kyanite system.

Academic Significance and Societal Importance of the Research Achievements

熱力学モデルに基づく地質圧力計は固体地球科学分野で広く使用されてきたが、鉱物組み合わせの制限や、その選択の妥当性検証など難点もあった。ラマン分光学に基づく地質圧力計の大きな特徴は、原理的に熱力学から独立して圧力情報が取得できる点にある。また、藍晶石と石英は高圧型変成岩でよく認められる鉱物であり、本研究は汎用的な地質圧力計を提案したものといえる。本ラマン地質圧力計の実用化は、世界各地の様々な地質体における変成進化プロセスの理解に貢献できると期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (15 results)

All 2022 2021 2020 2019

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Raman Geobarometry of Quartz Inclusions in Kyanite: Application to Quartz Eclogite from the Gongen Area of the Sanbagawa Belt, Southwest Japan2022

    • Author(s)
      Tomioka Yuki、Kouketsu Yui、Taguchi Tomoki
    • Journal Title

      The Canadian Mineralogist

      Volume: 60 Issue: 1 Pages: 121-132

    • DOI

      10.3749/canmin.2000097

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formation process of Al-rich calcium amphibole in quartz-bearing eclogites from the Sulu belt, China2022

    • Author(s)
      Enami Masaki、Taguchi Tomoki、Kouketsu Yui、Michibayashi Katsuyoshi、Nishiyama Tadao
    • Journal Title

      American Mineralogist

      Volume: - Issue: 8 Pages: 1582-1597

    • DOI

      10.2138/am-2022-7996

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermal structure in subducted units from continental Moho depths in a palaeo subduction zone, the Asemigawa region of the Sanbagawa metamorphic belt, SW Japan2021

    • Author(s)
      Kouketsu Yui、Sadamoto Kazushi、Umeda Hayato、Kawahara Hirokazu、Nagaya Takayoshi、Taguchi Tomoki、Mori Hiroshi、Wallis Simon、Enami Masaki
    • Journal Title

      Journal of Metamorphic Geology

      Volume: - Issue: 6 Pages: 1-23

    • DOI

      10.1111/jmg.12584

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hidden intact coesite in deeply subducted rocks2021

    • Author(s)
      Taguchi Tomoki、Kouketsu Yui、Igami Yohei、Kobayashi Tomoyuki、Miyake Akira
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 558 Pages: 116763-116763

    • DOI

      10.1016/j.epsl.2021.116763

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Early Carboniferous HP metamorphism in the Hida Gaien Belt, Japan: Implications for the Palaeozoic tectonic history of proto‐Japan2020

    • Author(s)
      Yoshida Takumi、Taguchi Tomoki、Ueda Hayato、Horie Kenji、Satish‐Kumar M.
    • Journal Title

      Journal of Metamorphic Geology

      Volume: 39 Issue: 1 Pages: 77-100

    • DOI

      10.1111/jmg.12564

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] A new occurrence of retrogressed eclogite from the Sanbagawa belt of southwest Japan and its significance2019

    • Author(s)
      Taguchi Tomoki、Endo Shunsuke、Igami Yohei、Miyake Akira
    • Journal Title

      Island Arc

      Volume: 28 Issue: 5

    • DOI

      10.1111/iar.12317

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Hidden intact coesite in deeply subducted rocks and its geological implications2021

    • Author(s)
      田口 知樹、纐纈 佑衣、伊神 洋平、小林 記之、三宅 亮
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] ラマン分光法で探る石英包有物の歪2021

    • Author(s)
      纐纈 佑衣、冨岡 優貴、田口 知樹
    • Organizer
      日本地球惑星科学連合2021年大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 石英-藍晶石系を用いたラマン地質圧力計:四国三波川帯・石英エクロジャイトの例2020

    • Author(s)
      冨岡優貴、纐纈佑衣、田口知樹
    • Organizer
      日本鉱物科学会2020年オンライン年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Raman spectroscopy of quartz eclogite in the Sanbagawa metamorphic belt: Potential of Raman geobarometry using kyanite-quartz system2020

    • Author(s)
      Yuki Tomioka、Yui Kouketsu、Tomoki Taguchi
    • Organizer
      JpGU - AGU Joint Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Thermal structure near the continental Moho of subduction zone: Natural example of the Asemigawa region of the Sanbagawa metamorphic belt, SW Japan2020

    • Author(s)
      Yui Kouketsu、Kazushi Sadamoto、Hayato Umeda、Hirokazu Kawahara、Takayoshi Nagaya、Tomoki Taguchi、Hiroshi Mori、Simon Richard Wallis、Masaki Enami
    • Organizer
      JpGU - AGU Joint Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] ザクロ石中の相転移を伴わないコース石の発見とその意義:イタリア・西アルプスLago di Cignana Unitの例2019

    • Author(s)
      田口知樹,纐纈佑衣,伊神洋平,三宅亮
    • Organizer
      日本地質学会第126年学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Petrological implications of a new occurrence of retrogressed eclogite from the Sanbagawa belt of southwest Japan2019

    • Author(s)
      田口知樹,遠藤俊祐,伊神洋平,三宅亮
    • Organizer
      日本地球惑星科学連合2019年大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Early Carboniferous HP metamorphism in the Hida Gaien Belt, Japan: Implications for the Paleozoic tectonic history of proto-Japan2019

    • Author(s)
      Satish-Kumar, M., Yoshida, T., Taguchi, T., Ueda, H., Horie, K.
    • Organizer
      日本地質学会第126年学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 四国中央部三波川帯汗見川地域における沈み込み帯モホ面境界とその近傍における温度構造及び変形構造2019

    • Author(s)
      纐纈佑衣,貞本和志,梅田隼人,河原弘和,永冶方敬,田口知樹,森宏,ウォリス サイモン,榎並正樹
    • Organizer
      日本地質学会第126年学術大会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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