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Co-operative research of granite mylonites in Japan

Research Project

Project/Area Number 02304011
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 地質学一般
Research InstitutionHiroshima University

Principal Investigator

HARA Ikuo  Institute of Geology and Mineralogy, Faculty of Science, Hiroshima University, Professor, 理学部, 教授 (50033824)

Co-Investigator(Kenkyū-buntansha) KOMATSU Masayuki  Ehime Univ., Fac. Sci., Professor, 理学部, 教授 (00018665)
TAKESHITA Tohru  Ehime Univ., Fac. Sci. Associate Prof., 理学部, 助教授 (30216882)
UI Hirotaka  Toyama Univ., Fac. Edu., Professor, 教育学部, 教授 (20022642)
MASUDA Toshiaki  Shizuoka Univ., Fac. Sci., Associate Prof., 理学部, 助教授 (30126164)
SHIMAMOTO Toshihiko  Tokyou Univ., Earthquake Inst., Associate Prof., 地震研究所, 助教授 (20112170)
櫻井 康博  広島大学, 理学部, 助手 (80205814)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1991: ¥1,300,000 (Direct Cost: ¥1,300,000)
KeywordsGranite mylonite / Hida belt / Ryoke belt / Abukuma-Xitakami belt / Hidaka belt / Greentuff belt / Microtexture / Formation process / 阿武隈一北上帯 / 花崗岩質岩 / マイロナイト / 変形構造 / 変形微細組織 / 石英 / カリ長石 / 斜長石 / 日本
Research Abstract

In this co-operative research have been performed descriptions of granite mylonites in Japan and their formation processes and tectonics have been discussed. Granite mylonites are developed as large-scale zones in the Hida belt, Ryoke belt, Abukuma-Kitakami belt, Hidaka belt and Greentuff belt as magma-arcs. They are zones of strain concentration in magma-arcs. In order to understand tectonic of magma-arcs, therefore, it is very important to clarify formation processes and movement pictures of large-scale granite mylonite zones. Granite mylonite zone in the Hida belt has been studied by Komatsu (1992) and Hara (1992) clarifying that it was developed during two phases, Unazuki phase for tectonics related to the uplifting of medium P/T type schists and Hunatsu phase for tectonics related to the intrusion of Hunatsu granites. Large-scale mylonite zone in the Ryoke belt, which is placed along the Median Tectonic Line, has been studied by Ui and Yokoyama (1992), Takagi (1992), Hara (1992) a … More nd Takeshita (1992) clarifying that it was developed as a flat-lying shear zone. Its movement picture has bee analyzed during the period from the phase of Cretaceous granite intrusion to the phase of the Japan-sea spreading. Large-scale mylonite zones in the Abukuma-Kitakami belt have been studied by Koshiya (1992) and Hara (1992), clarifying that they were developed as upright shear zones with horizontal shear unlike the case of the Ryoke belt, though the shear zones in both belts are of the same generation. Large-scale mylonite zone in the Hidaka belt has been studied by Toyoshima (1992) and Toyoshima and Hara (1990), clarifying that it was developed as flat-lying shear zone during two phases, phase of intrusion of MORB type magma and phase of intrusion of calcalkaline magma, and then the shear zone with igneous intrusion was moved into upright attitude giving rise to great mylonite zone (Hidaka western margin mylonite zone). Mylonite zone in the greentuff belt is developed along the Itoigawa-Shizuoka tectonic line. Its microtextures and movement picture have been analyzed by Kosaka and Takizawa (1992), Takizawa and Kosaka (1992) and Shimamoto (1992). Microtextures, formation processes, movement pictures andstress estimation of mylonites have been discussed by Masuda et al. (1992), Takizawa and Kosaka (1992), Hara et al. (1992), Kang et al. (1992), Koshiya (l992) and Simamoto (1992). Less

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 原 郁夫: "日本列島の花崗岩マイロナイト形成のテクトニクス概観" 月刊地球. 14. 189-191 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 小松 正幸,長瀬 真央,内藤 耕,管野 孝美: "船津シア・ゾ-ンの再検討" 月刊地球. 14. 192-196 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 宇井 啓高,横山 良哲: "愛知県南設楽郡鳳来町富栄、宇連川右岸における中央構造線新露頭と圧砕性岩類" 月刊地球. 14. 197-199 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 増田 俊明,道林 克禎,太田 洋文: "中央構造線付近のマイロナイトのnonーcoaxialityの推定" 月刊地球. 14. 199-203 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 竹下 徹: "火成岩の変形微細構造より推察される日本海拡大未期(15Ma)の西南日本の強圧縮" 月刊地球. 14. 204-208 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 小坂 和夫,滝沢 茂: "マイロナイト形成過程における花崗岩の組織変化ー糸魚川ー静岡線に沿う甲斐駒花崗岩を例としてー" 月刊地球. 14. 209-214 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Hara, I.: "Outline of tectonics related to the formation of granite mylonites in Japan" The Earth Monthly. 14, 4. 189-191 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Komatsu, M., Nagase, M. and Sugano, T.: "Re-examination of the Hunatsu shear zone" The Earth Monthly. 14, 4. 192-196 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Ui, H. and Yokoyama Y.: "A new outcrop of the Median Tectonic Line in the river side of Uregawa in Toei, Aichi Prefecture, and its mylonitic rocks" The Earth Monthly. 14, 4. 197-199 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Masuda, T., Michibayashi, K. and Ohta, H.: "Estimation of non-coaxiality of mylonite along the Median Tectonic Line." The Earth Monthly. 14, 4. 199-203 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Takeshita, T.: "Strong compression of Southwest Japan during the later stage (15Ma) of the Japan sea spreading." The Earth Monthly. 14, 4. 204-208 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] Kosaka, K. and Takizawa, S.: "Change of microtextures of granites during mylonitization" The Earth Monthly. 14, 4. 209-214 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 原 郁夫: "日本列島の花崗岩マイロナイト形成のテクトニクス概観" 月刊地球. 14. 189-191 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 小松 正幸,長瀬 真央,内藤 耕,管野 孝美: "船津シア・ゾ-ンの再検討" 月刊地球. 14. 192-196 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 宇井 啓高,横山 良哲: "愛知県南設楽郡鳳来町富栄,宇連川右岸における中央構造線新露頭と圧砕性岩類" 月刊地球. 14. 197-199 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 増田 俊明・道林 克禎,太田 洋文: "中央構造線付近のマイロナイトのnonーcoaxialityの推定" 月刊地球. 14. 199-203 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 竹下 徹: "火成岩の変形微細構造より推察される日本海拡大末期(15Ma)の西南日本の強圧縮" 月刊地球. 14. 204-208 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 小坂 和夫 滝沢 茂: "マイロナイト形成過程における花崗岩の組織変化ー糸魚川ー静岡線に沿う甲斐駒花崗岩を例としてー" 月刊地球. 14. 209-214 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] I.HARA,T.SHIOTA,K.HIDE,K.OKAMOTO,K.TAKEDA,Y.HAYASAKA and Y.SAKURAI: "Nappe structure of the Sambagawa belt" Journal of metamorphic geology. 8. 441-456 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] I.HARA,T.SHIOTA,K.TAKEDA,K.OKAMOTO and K.HIDE: "Sambagawa Terrane" PreーCretaceous Terranes of Japan. 137-163 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 原 郁夫・塩田 次男・秀 敬・岡本 和明・武田 賢治・早坂 康隆・櫻井 康博: "四国中央部の三波川変成岩のPーTーtーD path" 月刊地球. 12. 419-424 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 杉本 孝・早坂 康隆・原 郁夫: "中国地方先白亜紀付加体の地質構造ー白亜紀花崗岩地殻形成史ー" 月刊地球. 12. 430-439 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 櫻井 康博・原 郁夫: "領家花崗岩類の変形様式とテクトニクス(1)斜長石の変形様式" 月刊地球. 12. 457-461 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 櫻井 康博・原 郁夫: "領家花崗岩類の変形様式とテクトニクス(2)カリ長石の変形様式" 月刊地球. 12. 461-465 (1990)

    • Related Report
      1990 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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