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Understanding the interrelationships between tectonic rotation, faulting, and subsidence during the opening of the Sea of Japan

Research Project

Project/Area Number 19K14822
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 17040:Solid earth sciences-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Hosoi Jun  国立研究開発法人産業技術総合研究所, 地質調査総合センター, 主任研究員 (50760196)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords日本海拡大 / 回転運動 / 層序 / 棚倉断層帯 / 背弧拡大 / 堆積盆 / 棚倉堆積盆 / 古地磁気 / ブロック回転 / 沈降 / リフティング / 棚倉断層 / 応力 / 古応力
Outline of Research at the Start

本研究は,棚倉断層沿いに形成された新生代の棚倉堆積盆を対象とし,日本海拡大期の回転運動と断層運動,火山活動,沈降運動の相互関係解明を行う.具体的には,野外地質調査と古地磁気・岩石磁気測定,放射年代測定を行う.棚倉堆積盆を埋積した地層の高精度な層序構築を行うと共に,棚倉堆積盆における回転運動の時期と回転量などを解明する.本研究の成果とこれまでの著者らの成果を組み合わせ,棚倉堆積盆における回転運動と棚倉断層の運動,火山活動,沈降運動の関係を検討する.

Outline of Final Research Achievements

I conducted geological surveys, paleomagnetic analysis, and U-Pb dating to elucidate the interrelationships between tectonic rotation, volcanism, subsidence, and faulting in the Tanakura Basin during the opening of the Sea of Japan. As a results, a counterclockwise rotation of about 30° of the Tanakura Basin is found,and a high-resolution chronostratigraphy of the Neogene strata of the Tanakura Basin is constructed. Based on this chronostratigraphy, it is clear that the Tanagura Basin experienced rapid tectonic subsidence and block rotation due to the movement of the Tanakura Fault Zone from about 17.2 Ma to 16.6 Ma.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は日本海拡大に伴った様々な事象を実証的に結びつけたものである.具体的には,日本海拡大に伴った棚倉断層帯の運動,堆積盆の形成~発達と回転運動を同時に引き起こしたことを発見した.日本海拡大は世界的に有名な背弧拡大イベントである.そのため本研究成果は,現世および過去の,世界各地の,様々な背弧拡大テクトニクスを検討する上で,世界的にも重要な成果であると考える.

Report

(6 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
  • Research Products

    (8 results)

All 2023 2022 2021 2020 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (1 results) Remarks (2 results)

  • [Journal Article] Rotated Transtensional Basins Formed During Back‐Arc Spreading in Japan: Simultaneous Rapid Tectonic Rotation and Basin Subsidence2023

    • Author(s)
      Hosoi J.、Tanii Y.、Okada M.、Haneda Y.
    • Journal Title

      Tectonics

      Volume: 42 Issue: 6

    • DOI

      10.1029/2022tc007642

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Research history of the Green Tuff region in NE Japan in relation to the Sea of Japan formation2021

    • Author(s)
      Amano Kazuo、Hosoi Jun
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 127 Issue: 7 Pages: 381-394

    • DOI

      10.5575/geosoc.2020.0063

    • NAID

      130008114126

    • ISSN
      0016-7630, 1349-9963
    • Year and Date
      2021-07-15
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Age and associated stress field of the Miocene Tochihara Rhyolites using dikes in the Daigo Town, Northeast Japan2021

    • Author(s)
      Hosoi Jun、Haji Toshiki、Iwano Hideki、Danhara Tohru、Hirata Takafumi
    • Journal Title

      The Journal of the Geological Society of Japan

      Volume: 127 Issue: 7 Pages: 395-402

    • DOI

      10.5575/geosoc.2020.0041

    • NAID

      130008114120

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Age and associated stress field of middle Miocene back‐arc basalt magmatism in Northeast Japan2021

    • Author(s)
      Hosoi Jun、Yamaji Atsushi、Iwano Hideki、Danhara Tohru、Hirata Takafumi
    • Journal Title

      Island Arc

      Volume: 30 Issue: 1

    • DOI

      10.1111/iar.12379

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of the Tanakura strike-slip basin in Japan during the opening of the Sea of Japan: Constraints from zircon U?Pb and fission-track ages2020

    • Author(s)
      Hosoi Jun、Danhara Tohru、Iwano Hideki、Matsubara Noritaka、Amano Kazuo、Hirata Takafumi
    • Journal Title

      Journal of Asian Earth Sciences

      Volume: 190 Pages: 104157-104157

    • DOI

      10.1016/j.jseaes.2019.104157

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 棚倉堆積盆を埋積する新第三系の古地磁気学的研究2022

    • Author(s)
      細井 淳,羽田裕貴,岡田 誠
    • Organizer
      日本地質学会第129年学術大会
    • Related Report
      2022 Research-status Report
  • [Remarks] 日本海拡大時の大地の急速沈降と回転の同時発生を発見

    • URL

      https://www.aist.go.jp/aist_j/press_release/pr2023/pr20230626/pr20230626.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 日本海拡大時の大地の急速沈降と回転の同時発生を発見

    • URL

      https://www.ibaraki.ac.jp/news/2023/06/26012027.html

    • Related Report
      2023 Annual Research Report

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Published: 2019-04-18   Modified: 2025-01-30  

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