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Transformation from oceanic arc into continental crust: detailed analysis of crustal anatexis in the Izu collision zone

Research Project

Project/Area Number 16K17821
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Geology
Research InstitutionEhime University

Principal Investigator

Saito Satoshi  愛媛大学, 理工学研究科(理学系), 准教授 (00528052)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords花崗岩 / 大陸地殻 / 海洋性島弧 / 伊豆衝突帯 / 衝突帯火成活動 / マグマ定置深度 / 衝突帯構造発達 / 大陸地殻形成 / 衝突帯 / 新第三紀
Outline of Final Research Achievements

In this research project, we proposed a genetic model for the granitoid magma enriched in incompatible elements comparable to the continental crust, on the basis of high-pressure melting experiments performed on the crustal rocks of Izu arc - Honshu arc collision zone. We also applied geothermobarometry to the Kaikomagatake granitoid pluton which had chemical characteristic comparable to the average upper continental crust in order to estimate the emplacement depth of the magma formed through anatexis of the deep collision zone crust.

Academic Significance and Societal Importance of the Research Achievements

大陸地殻を特徴づける不適合元素に富む花崗岩質マグマは、海洋性島弧衝突帯においてはマグマソースに成熟島弧地殻岩石が混入することにより生成しうることが溶融実験から実証された。このことは海洋性島弧衝突帯での大陸地殻成長過程を理解する上で重要な学術的意義を持つ。また甲斐駒ヶ岳花崗岩質岩体の定置深度と冷却史から、島弧衝突テクトニクスでの当岩体の上昇・削剥過程が明らかとなり、当地域の構造発達史の理解に重要な知見となった。伊豆衝突帯は現在進行形の衝突帯であり、地殻変動も活発であるとともに首都圏からも近く、その構造発達史の理解は将来の災害リスク評価の観点からも重要な社会的意義を持つ。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (18 results)

All 2020 2019 2018 2017 2016 Other

All Journal Article (7 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 7 results,  Open Access: 5 results,  Acknowledgement Compliant: 1 results) Presentation (10 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] Estimation of emplacement depth for the Miocene Kaikomagatake granitoid pluton: constraints on crustal denudation history of the Izu collision zone2020

    • Author(s)
      Watanabe S, Saito S, Tani K
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: -

    • NAID

      130007863951

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Zircon U–Pb ages of the Ryoke granitoids from the Takanawa Peninsula, northwest Shikoku, southwest Japan2019

    • Author(s)
      SHIMOOKA Kazuya、SAITO Satoshi、TANI Kenichiro
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 114 Issue: 6 Pages: 284-289

    • DOI

      10.2465/jmps.190731c

    • NAID

      130007789000

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Laboratory measurements of electrical conductivity in a gabbro of the Oman ophiolite at high–pressures and high–temperatures: implications for interpretation of resistivity structures of lower oceanic crust2018

    • Author(s)
      SAITO Satoshi、BAGDASSAROV Nikolai S.
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 113 Issue: 2 Pages: 112-117

    • DOI

      10.2465/jmps.171110

    • NAID

      130006733776

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Setouchi Volcanic Rocks in the vicinity of Matsuyama city:2017

    • Author(s)
      新正裕尚,齊藤哲
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 123 Issue: 8 Pages: 571-584

    • DOI

      10.5575/geosoc.2017.0048

    • NAID

      130006063858

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2017-08-15
    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transformation of juvenile Izu-Bonin-Mariana oceanic arc into mature continental crust: an example from the Neogene Izu Collision Zone granitoid plutons, central Japan2017

    • Author(s)
      Saito,S., Tani, K.
    • Journal Title

      Lithos

      Volume: 277 Pages: 228-240

    • DOI

      10.1016/j.lithos.2016.07.035

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Laboratory measurements of vp and vs in a porosity-developed crustal rock: Experimental investigation into the effects of porosity at deep crustal pressures2016

    • Author(s)
      Saito, S., Ishikawa, M., Arima, M., and Tatsumi, Y.
    • Journal Title

      Tectonophysics

      Volume: 677-678 Pages: 218-226

    • DOI

      10.1016/j.tecto.2016.03.044

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Sedimentation history of the Paleoproterozoic Singhbhum Group of rocks, eastern India and its implications2016

    • Author(s)
      De S, Mallik L, Mazumder R, Chatterjee P, Ohta T, Saito S, Chiarenzelli J
    • Journal Title

      Earth-Science Reviews

      Volume: 163 Pages: 141-161

    • DOI

      10.1016/j.earscirev.2016.10.001

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 伊豆衝突帯に分布する中新世甲斐駒ヶ岳花崗岩質岩体の定置深度と上昇・削剥史2019

    • Author(s)
      渡邉 早姫, 齊藤 哲, 谷 健一郎
    • Organizer
      日本地質学会第126年学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Magma process, emplacement depth and denudation history of the Miocene Kaikomagatake granitoid pluton in the Izu arc collision zone, central Japan2019

    • Author(s)
      Saito S
    • Organizer
      The 9th Hutton Symposium on the Origin of Granites and Related Rocks
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Neogene Izu Collision Zone granitoid plutons, central Japan: transformation of juvenile Izu-Bonin-Mariana oceanic arc into mature continental crust2019

    • Author(s)
      Saito S
    • Organizer
      American Geophysical Union Fall Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 伊豆衝突帯に分布する中新世甲斐駒ヶ岳花崗岩質岩体の定置深度の見積もり2019

    • Author(s)
      渡邉 早姫, 齊藤 哲
    • Organizer
      日本鉱物科学会2018年年会(山形市)
    • Related Report
      2018 Research-status Report
  • [Presentation] 角閃石地質圧力計を用いた甲斐駒ヶ岳花崗岩質岩体の固結深度の検討2018

    • Author(s)
      渡邉 早姫, 齊藤 哲
    • Organizer
      日本地球惑星科学連合2018年大会(千葉市)
    • Related Report
      2018 Research-status Report
  • [Presentation] Petrological characteristics of the Miocene Miuchi granitoid pluton, SW Japan: an example of crust-mantle interaction in mature arc2018

    • Author(s)
      Magome, M, Shiota M, Saito S
    • Organizer
      XXII Meeting of the International Mineralogical Association (Melbourne, Australia)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 愛媛県南部、中新世御内花崗岩質岩体にみられる苦鉄質火成包有岩についての岩石学的研究2017

    • Author(s)
      塩田 恵美,山崎 楓真,齊藤 哲
    • Organizer
      日本地球惑星科学連合2017年大会
    • Related Report
      2017 Research-status Report
  • [Presentation] ピストン・シリンダー型高圧発生装置を用いたオマーンオフィオライト産斑れい岩の電気伝導度測定2017

    • Author(s)
      齊藤 哲, Nikolai S. Bagdassarov
    • Organizer
      日本鉱物科学会2017年年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 中新世御内花崗岩質岩体に記録された地殻物質-マントル由来物質相互作用2017

    • Author(s)
      馬込 宗孝, 塩田 恵美, 齊藤 哲
    • Organizer
      日本地質学会第124回学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 愛媛県に分布する中期中新世花崗岩質岩体の成因に関する実験岩石学的検討2016

    • Author(s)
      宮本 華蓮,齊藤 哲
    • Organizer
      日本地球惑星科学連合2016年大会
    • Place of Presentation
      幕張メッセ(千葉県・千葉市)
    • Year and Date
      2016-05-26
    • Related Report
      2016 Research-status Report
  • [Remarks] 愛媛大学教育研究者要覧

    • URL

      http://yoran.office.ehime-u.ac.jp/profile/ja.50f865cfc1f643ce60392a0d922b9077.html?mode=pc

    • Related Report
      2019 Annual Research Report

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Published: 2016-04-21   Modified: 2021-02-19  

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