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Study on the processes of ascent and cooling of deep crustal rocks in continental collision orogens based on unusual melt inclusions

Research Project

Project/Area Number 18K03789
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 InstitutionNational Institute of Polar Research

Principal Investigator

Hiroi Yoshikuni  国立極地研究所, 先端研究推進系, 外来研究員 (40019427)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywordsメルト包有物 / 過冷却結晶成長組織 / グラニュライト / 大陸衝突型造山帯 / 部分融解 / 急速冷却 / 非平衡結晶成長組織 / 準安定相 / 過冷却組織 / ザクロ石 / 大陸衝突型造山運動 / 高温高圧広域変成岩 / 微細組織保存 / 高温変成作用 / 過冷却 / グランディディエライト / 高温広域変成岩 / 上昇過程 / 冷却速度
Outline of Final Research Achievements

Felsite inclusions in garnet in high-temperature and high-pressure regional metamorphic rocks from continental collision orogens worldwide with various ages ranging from Archean to Phanerozoic are extraordinary melt inclusions. They show non-equilibrium crystallization textures, such as dendritic and spherulitic crystals of quartz and other minerals, as well as the porphyritic texture that are characteristic of hypabyssal and volcanic rocks. Detailed analyses and observations of the felsite inclusions using various methods, in addition to field survey in Sri Lanka, have revealed unexpected features of ascent and cooling processes of the host rocks, and require a revolutionary tectonic model.

Academic Significance and Societal Importance of the Research Achievements

直接的な観察や試料採集が不可能な大陸地殻深部、特に大陸衝突型造山帯の深部での地質現象の解明を目指して、研究代表者らによって発見された特異なメルト包有物を詳細に解析した。大陸衝突型造山帯では巨大山脈が発達して様々な気象現象に影響するとともに、大地震などの大規模な自然災害が起きている。本研究の結果、この種の造山帯の深部では岩石が確実に部分融解することとそれが従来の想定よりもはるかに高速で上昇・冷却する可能性があることが明らかになった。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (18 results)

All 2024 2023 2022 2020 2019 2018 Other

All Int'l Joint Research (6 results) Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 7 results,  Open Access: 6 results) Presentation (5 results) (of which Invited: 1 results)

  • [Int'l Joint Research] Czech Academy of Sciences(チェコ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] メーン州立大学(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] メーン州立大学(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ペラデニヤ大学/地質調査所(スリランカ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Australian National University(オーストラリア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Peradeniya/Geological Survey and Mines Bureau(スリランカ)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Chlorine-rich potassic-ferro-pargasite with Cl-poor cummingtonite in mafic granulite from Austhovde, Lützow-Holm Complex, East Antarctica2024

    • Author(s)
      Hiroi Yoshikuni, Hokada Tomokazu, Adachi Tatsuro, Kamei Atsushi, Shiraishi Kazuyuki, Motoyoshi Yoichi
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 119 Issue: ANTARCTICA Pages: n/a

    • DOI

      10.2465/jmps.230329

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deformation-induced, retrograde transformation of kyanite to andalusite: An example of felsic granulite in the southern Bohemian Massif2024

    • Author(s)
      Yoshioka Takuro, Kanagawa Kyuichi, Hiroi Yoshikuni, Hirajima Takao, Svojtka Martin, Hokada Tomokazu, Wallis R. Simon, Nagaya Takayoshi, Miyake Akira
    • Journal Title

      Tectonophysics

      Volume: 877 Pages: 230293-230293

    • DOI

      10.1016/j.tecto.2024.230293

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Nanogranitoid inclusions with grandidierite in mafic granulite from Austhovde, Lützow-Holm Complex, East Antarctica2023

    • Author(s)
      Hiroi Yoshikuni、Hokada Tomokazu、Adachi Tatsuro、Shiraishi Kazuyuki、Motoyoshi Yoichi、Grew Edward S.
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 118 Issue: ANTARCTICA Pages: n/a

    • DOI

      10.2465/jmps.221209

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Zoned quartz phenocrysts in supercooled melt inclusions in granulites from continental collision orogens2020

    • Author(s)
      27.Yoshikuni Hiroi, Tomokazu Hokada, Masahiro Kayama, Akira Miyake, Tatsuro Adachi, Bernard Prame, Keerthi Perera, Madhusoodhan Satish-Kumar, Yasuhito Osanai, Yoichi Motoyoshi, David J. Ellis, Kazuyuki Shiraishi
    • Journal Title

      Island Arc

      Volume: 29 Issue: 1 Pages: 1-16

    • DOI

      10.1111/iar.12374

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Geological subdivision of the Lutzow-Holm Complex in East Antarctica: From the Neoarchean to the Neoproterozoic2020

    • Author(s)
      Dunkley Daniel J.、Hokada Tomokazu、Shiraishi Kazuyuki、Hiroi Yoshikuni、Nogi Yoshifumi、Motoyoshi Yoichi
    • Journal Title

      Polar Science

      Volume: 26 Pages: 100606-100606

    • DOI

      10.1016/j.polar.2020.100606

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Remarkable petrographic features of Sri Lankan granulites; with special regard to unexpected occurrence of “felsite-nanogranite inclusions” in garnet2020

    • Author(s)
      Yoshikuni Hiroi
    • Journal Title

      Journal of Geological Society of Sri Lanka

      Volume: 21 Pages: 1-19

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Felsite–nanogranite inclusions and three Al<sub>2</sub>SiO<sub>5</sub> polymorphs in the same garnet in ultrahigh–temperature granulites from Rundvågshetta, Lützow–Holm Complex, East Antarctica2019

    • Author(s)
      Yoshikuni HIROI, Tomokazu HOKADA, Mutsumi KATO, Ayahiko YANAGI, Tatsuro ADACHI, Yasuhito OSANAI, Yoichi MOTOYOSHI, and Kazuyuki SHIRAISHI
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 114 Issue: 2 Pages: 60-78

    • DOI

      10.2465/jmps.181118

    • NAID

      130007649676

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 南極及びスリランカのグラニュライト中のナノ花崗岩中のdmisteinbergite等の準安定相2023

    • Author(s)
      廣井美邦、外田智千、足立達朗
    • Organizer
      変成岩などシンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] 富山県宇奈月地域のインド石‐十字石含有複変成ホルンフェルス;低圧高温熱変成後の急速冷却の証2022

    • Author(s)
      廣井美邦
    • Organizer
      日本地質学会
    • Related Report
      2022 Research-status Report
  • [Presentation] Rapid UHT metamorphism and exhumation of the Lutzow-Holm Complex in Antarctica2019

    • Author(s)
      Yoshikuni Hiroi, Tomokazu Hokada, Tatsuro Adachi, Yasuhito Osanai, Yoichi Motoyoshi, Kazuyuki Shiraishi
    • Organizer
      日本地球惑星科学連合大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Remarkable petrographic features of Sri Lankan granulites; with special regard to unexpected occurrence of “felsite-nanogranite inclusions” in garnet2019

    • Author(s)
      Yoshikuni Hiroi
    • Organizer
      Geological Society of Sri Lanka
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Evidence of partial melting and melt extraction in mafic granulites2018

    • Author(s)
      Yoshikuni Hiroi, Tomokazu Hokada, Kazuyuki Shiraishi, Yoichi Motoyoshi, and Edward S. Grew
    • Organizer
      The Ninth Symposium on Polar Science(第9回極域科学シンポジウム)
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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