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Multidisciplinary study on generation process of slickenside

Research Project

Project/Area Number 16H04063
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Geology
Research InstitutionHiroshima University

Principal Investigator

ANDO Jun-ichi  広島大学, 理学研究科, 教授 (50291480)

Co-Investigator(Kenkyū-buntansha) 富岡 尚敬  国立研究開発法人海洋研究開発機構, 高知コア研究所, 主任技術研究員 (30335418)
廣瀬 丈洋  国立研究開発法人海洋研究開発機構, 高知コア研究所, グループリーダー (40470124)
鍵 裕之  東京大学, 大学院理学系研究科(理学部), 教授 (70233666)
大藤 弘明  愛媛大学, 地球深部ダイナミクス研究センター, 教授 (80403864)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥11,180,000 (Direct Cost: ¥8,600,000、Indirect Cost: ¥2,580,000)
Keywords鏡肌 / 断層岩 / 形成過程 / 微細組織 / ナノ粒子 / 高速回転摩擦試験機 / 二軸摩擦実験 / 摩擦係数 / 断層運動 / 力学特性 / 岩石・鉱物・鉱床学 / 地殻・マントル物質 / 地質学 / 地震 / 超薄膜 / 地殻マントル物質
Outline of Final Research Achievements

Slickenside is a glossy and smoothly surface developed on the fault slip plane. Although the slickenside is a common and well-known microstructure, its microstructural characterization and effect on the fault behaviour have not been fully studied, so far. To understand these issues, we studied the microstructures of natural samples including nine different rock species, and conducted the frictional experiments using limestone and gabbro samples. The recovery samples from the experiments were also studied for their microstructural characterization. One of the most important results is that the slickenside is caused by deformation concentration on the top surface of the fault within 50-100um thickness during faulting. And the other, considered from the frictional experiments using limestone is that the fault having slickenside probably reduces the chance of large earthquake, and instead augments the generation of smaller creep-related seismic activities.

Academic Significance and Societal Importance of the Research Achievements

断層面に形成される鏡肌の成因を知ることは、地下に存在する多くの断層運動の発生過程や、断層運動のすべり特性を理解することにつながる。地震を発生させる断層は地下に存在するため、その実態を岩石の変形特性を通して研究することはなかなか難しい。本研究では、もともと地下に存在し、その後地表に現れた断層を対象に微細組織の観点から主に研究を行った。その結果、得られた鏡肌の成因等の解明は学術的な意義の高いものである。また断層運動や地震活動の研究につながる本研究は社会的意義も十分にある。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (11 results)

All 2019 2018 2017 2016

All Journal Article (6 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (5 results)

  • [Journal Article] The architecture of long-lived fault zones: insights from microstructure and quartz lattice-preferred orientations in mylonites of the Median Tectonic Line, SW Japan2019

    • Author(s)
      Czertowicz Thomas A.、Takeshita Toru、Arai Shun、Yamamoto Takafumi、Ando Jun-Ichi、Shigematsu Norio、Fujimoto Ko-Ichiro
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 6 Issue: 1 Pages: 1-20

    • DOI

      10.1186/s40645-019-0261-6

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Coalescing microstructure and fabric transitions with AMS data in deformed limestone: Implications on deformation kinematics2018

    • Author(s)
      Ghosh Bhaskar、Das Paramita、Sarkar Dyuti Prakash、Ghosh Gautam、Mukhopadhyay Joydip、Ando Jun-ichi
    • Journal Title

      Journal of Structural Geology

      Volume: 114 Pages: 294-309

    • DOI

      10.1016/j.jsg.2017.12.016

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The occurrence of fluor-wagnerite in UHT granulites and its implications towards understanding fluid regimes in the evolution of deep crust: a case study from the Eastern Ghats Belt, India2017

    • Author(s)
      K. Das, N. Tomioka, S. Bose, J. Ando, I. Ohnishi
    • Journal Title

      Mineralogy and Petrology

      Volume: 111 Issue: 3 Pages: 417-429

    • DOI

      10.1007/s00710-016-0474-y

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Deformation history of Pinatubo peridotite xenolith: constraint from microstructural observation and determination of olivine slip system2017

    • Author(s)
      Yamamoto, T., Ando, J., Tomioka, N., and Kobayashi, T.
    • Journal Title

      Physics and Chemistry of Minerals

      Volume: 44 Issue: 4 Pages: 247-262

    • DOI

      10.1007/s00269-016-0853-2

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microstructural observations of fracture–filling goethite vein along the Kerajang Fault Zone in the Rengali Province of eastern India2017

    • Author(s)
      T. Yamamoto, J. Ando, N. Tomioka, K. Das, G. Ghosh, S. Bose
    • Journal Title

      Journal of Mineralogical and Petrological Sciences

      Volume: 112 Issue: 2 Pages: 102-107

    • DOI

      10.2465/jmps.161113

    • NAID

      130007348405

    • ISSN
      1345-6296, 1349-3825
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Frictional strength of ground dolerite gouge at a wide range of slip rates2016

    • Author(s)
      Wada, J., Kanagawa, K., Kitajima, H., Takahashi, M., Inoue, A., Hirose, T., Ando, J. and Noda, H.
    • Journal Title

      Journal of Geophysical Research

      Volume: 121 Issue: 4 Pages: 2961-2979

    • DOI

      10.1002/2015jb012013

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 鏡肌の微細組織の特徴とその形成過程2018

    • Author(s)
      長岡昂吉・安東淳一・廣瀬丈洋・鍵裕之・大藤弘明
    • Organizer
      日本鉱物科学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 鏡肌を構成する物質の特徴2018

    • Author(s)
      安東淳一・長岡昂吉・富岡尚敬・鍵裕之
    • Organizer
      日本地質学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 鏡肌の摩擦特性2017

    • Author(s)
      安東淳一
    • Organizer
      鉱物科学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 鏡肌の微細組織観察と再現実験から考える形成過程2017

    • Author(s)
      長岡昂吉、安東淳一他
    • Organizer
      鉱物科学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 鏡肌の形成過程2016

    • Author(s)
      安東淳一
    • Organizer
      鉱物科学会
    • Related Report
      2016 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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