Effects of dehydration of clay minerals on seismic slip

• Project/Area Number: 21340150
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Geology
• Research Institution: University of Tsukuba (2010-2011); Japan Agency for Marine-Earth Science and Technology (2009)
• Principal Investigator: UJIIE Kohtaro 筑波大学, 生命環境系, 准教授 (40359188)
• Co-Investigator(Kenkyū-buntansha): TSUTSUMI Akito 京都大学, 大学院・理学研究科, 助教 (90324607) ; HIRANO Nobuo 東北大学, 大学院・環境科学研究科, 助教 (80344688)
• Co-Investigator(Renkei-kenkyūsha): HIRONO Tetsuro 大阪大学, 大学院・理学研究科, 准教授 (70371713)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000); Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2010: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: 地震すべり / 摩擦発熱 / 粘土質断層ガウジ / すべり弱化 / 流動化 / 高速摩擦実験 / 断層流動化 / 高速せん断摩擦 / 粘土鉱物 / 流体

Research Abstract

Faults are commonly dominated by clay minerals. To understand frictional response associated with rupture propagation from deep depths, we conducted high-velocity friction experiments on clay-rich fault material. The results show that the frictional strength decreases with displacement due to dehydration of clay minerals. This would enhance rupture propagation toward seafloor and tsunami generation.

Research Products

• [Journal Article] Reproduction of thermal pressurization and fluidization of clay-rich fault gouges by high-velocity friction experiments and implications for seismic slip in natural faults (2011)
  • Author(s): Ujiie, K., A. Tsutsumi, and J. Kameda
  • Journal Title: Geological Society, London, Special Publications Volume: 359 Pages: 267-285
  • Peer Reviewed
• [Journal Article] Reproduction of thermal pressurization and fluidization of clay-rich fault gouges by high-velocity friction expenments and implications for seismic slip in natural faults (2011)
  • Author(s): Ujiie, K., Tsutsumi, A., Kameda, J.
  • Journal Title: Geological Society of London Special Publications Volume: 359 Issue: 1 Pages: 267-285
  • DOI: 10.1144/sp359.15
  • Peer Reviewed
• [Journal Article] Friction velocity dependence of clay-rich fault material along a megasplay fault in the Nankai subduction zone at intermediate to high velocities (2011)
  • Author(s): Tsutsumi, A., Fabbri, O., Karpoff, A. M., Ujiie, K. and Tsujimoto, A
  • Journal Title: Geophysical Research Letters Volume: 38 Issue: 19 Pages: n/a-n/a
  • DOI: 10.1029/2011gl049314
  • Peer Reviewed
• [Journal Article] High-velocity frictional properties of clay-rich fault gouge in a megasplay fault zone, Nankai subduction zone (2010)
  • Author(s): Ujiie, K. and Tsutsumi, A
  • Journal Title: Geophysical Research Letters Volume: 37 Issue: 24 Pages: 24310-24310
  • DOI: 10.1029/2010gl046002
  • NAID: 120007137370
  • Peer Reviewed
• [Journal Article] High-velocity frictional properties of clay-rich fault gouge in a megasplay fault zone, Nankai subduction zone (2010)
  • Author(s): Kohtaro Ujiie
  • Journal Title: Geophysical Research Letters Volume: 37
  • NAID: 120007137370
  • Peer Reviewed
• [Journal Article] Geological record of thermal pressurization and earthquake instability of subduction thrusts (2010)
  • Author(s): Kohtaro Ujiie
  • Journal Title: Tectonophysics Volume: 485 Pages: 260-280
  • Peer Reviewed
• [Journal Article] Experimental investigation of frictional melting of argillite at high slip rates : Implications for seismic slip in subduction-accretion complexes (2009)
  • Author(s): Kohtaro Ujiie
  • Journal Title: Journal of Geophysical Research 114
  • Peer Reviewed
• [Journal Article] 四万十帯牟岐メランジュにみる沈み込み帯地震発生帯の変形と流体移動 (2009)
  • Author(s): 山口飛鳥
  • Journal Title: 地質学雑誌 115 Pages: 21-36
  • Peer Reviewed
• [Journal Article] Estimation temperature rise in a shallow slip zone of the megasplay fault in the Nankai Trough (2009)
  • Author(s): Tetsuro Hirono
  • Journal Title: Tectonophysics 478 Pages: 215-220
  • Peer Reviewed
• [Journal Article] Interactions between deformation and fluids in the frontal thrust region of the NanTroSEIZE transect offshore the Kii Peninsula, Japan : Results from IODP Expedition 316 Sites C0006 and C0007 (2009)
  • Author(s): Elizabeth Screaton
  • Journal Title: Geochemistry, Geophysics, Geosystems 10
  • Peer Reviewed
• [Presentation] Experimental and microstructural investigations of frictional heating and fluidization in clay-rich fault gouge (2011)
  • Author(s): Ujiie, K
  • Organizer: American Geophysical Union Fall Meeting
  • Place of Presentation: Moscone Convention Center, San Francisco, USA
  • Year and Date: 2011-12-07
• [Presentation] Experimental and microstructural investigations of frictional heating and fluidization in clay-rich fault gouge (2011)
  • Author(s): 氏家恒太郎
  • Organizer: American Geophysical Union
  • Place of Presentation: Moscone Convention Center(米国サンフランシスコ)(招待講演)
  • Year and Date: 2011-12-07
• [Presentation] High-velocity frictional properties and microstructures of clay-rich fault gouge in megasplay fault zone (2010)
  • Author(s): Ujiie, K
  • Organizer: Nankai subduction zone, American Geophysical Union Fall Meeting
  • Place of Presentation: Moscone Convention Center, San Francisco, USA
  • Year and Date: 2010-12-14
• [Presentation] High-velocity frictional properties and microstructures of clay-rich fault gouge in megasplay fault zone, Nankai subduction zone (2010)
  • Author(s): Kohtaro Ujiie
  • Organizer: American Geophysical Union Fall Meeting
  • Place of Presentation: モスコーニ会議場(米国サンフランシスコ)
  • Year and Date: 2010-12-14
• [Presentation] 南海付加体における巨大分岐断層の高速せん断摩擦特性と微細構造 (2010)
  • Author(s): 氏家恒太郎
  • Organizer: 日本地質学会第117年学術大会
  • Place of Presentation: 富山大学
  • Year and Date: 2010-09-19
• [Presentation] 南海付加体における巨大分岐断層の高速せん断摩擦特性と微細構造 (2010)
  • Author(s): 氏家恒太郎
  • Organizer: 日本地質学会第117年学術大会
  • Place of Presentation: 富山大学(富山)
  • Year and Date: 2010-09-19
• [Presentation] 断層ガウジにおけるthermal pressurizationに関する実験的研究と特徴的微細構造 (2010)
  • Author(s): 氏家恒太郎
  • Organizer: 日本地球惑星科学連合2010年度連合大会
  • Place of Presentation: 幕張メッセ国際会議場
  • Year and Date: 2010-05-26
• [Presentation] 断層ガウジにおけるthermal pressurizationに関する実験的研究と特徴的微細構造 (2010)
  • Author(s): 氏家恒太郎
  • Organizer: 日本地球惑星科学連合2010年度連合大会
  • Place of Presentation: 幕張メッセ国際会議場(千葉県)
  • Year and Date: 2010-05-26
• [Presentation] Frictional property and microstructures of splay fault at seismic slip rate (2010)
  • Author(s): Kohtaro Ujiie
  • Organizer: 日本地球惑星科学連合2010年度連合大会
  • Place of Presentation: 幕張メッセ国際会議場(千葉県)
  • Year and Date: 2010-05-24
• [Presentation] Frictional property and microstructures of the Nankai splay fault zone at seismic slip rates (2010)
  • Author(s): Kohtaro Ujiie
  • Organizer: Western Pacific Geophysics Meeting
  • Place of Presentation: 台北国際会議場(台湾)
• [Presentation] Effects of frictional melting on seismic slip in subduction-accretion complexes : Insights from high-velocity friction experiments and natural pseudotachylytes (2009)
  • Author(s): 氏家恒太郎
  • Organizer: 2009 AGU Fall Meeting
  • Place of Presentation: モスコーニ会議場(米国サンフランシスコ)
  • Year and Date: 2009-12-14
• [Presentation] 付加体泥質岩の摩擦熔融に関する実験的研究 (2009)
  • Author(s): 氏家恒太郎
  • Organizer: 日本地質学会第116年学術大会
  • Place of Presentation: 岡山理科大学(岡山県)
  • Year and Date: 2009-09-06
• [Presentation] 沈み込み帯地震発生深度で形成されたシュードタキライトとウルトラカタクレーサイトの特徴 (2009)
  • Author(s): 氏家恒太郎
  • Organizer: 日本地質学会第116年学術大会
  • Place of Presentation: 岡山理科大学(岡山県)
  • Year and Date: 2009-09-05
• [Presentation] Geological record of thermal pressurization and earthquake instability of subduction thrusts (2009)
  • Author(s): 氏家恒太郎
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ国際会議場(千葉県)
  • Year and Date: 2009-05-20
• [Presentation] Frictional melting of argillite at high slip rates : Implications for seismic slip in subduction-accretion complexes (2009)
  • Author(s): 氏家恒太郎
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ国際会議場(千葉県)
  • Year and Date: 2009-05-17
• [Remarks]
  • URL: http://www.life.tsukuba.ac.jp/topixarchive/index.html
• [Remarks]
  • URL: http://www.geol.tsukuba.ac.jp/~kohtaro/index.html
• [Remarks]
  • URL: http://www.life.tsukuba.ac.jp/topixarchive/index.html
• [Remarks]
  • URL: http://www.jamstec.go.jp/ifree/ip/04member/index.html