Strength recovery of solid contacts under fluid flow conditions

• Project/Area Number: 19K21907
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 17:Earth and planetary science and related fields
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: HIROSE Takehiro 国立研究開発法人海洋研究開発機構, 超先鋭研究開発部門(高知コア研究所), 研究所長 (40470124)
• Project Period (FY): 2019-06-28 – 2023-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000); Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2020: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 地震 / 断層 / 水 / 流速 / 強度回復 / 固体接触

Outline of Research at the Start

物質の強度が時間と共に大きくなる現象は、固体と固体の微小な接触域が圧力溶解などのメカノケミカル反応によって固着し、接触面積が増加することに起因する。長期間放置されたタンスの方が、移動させる際にすべらせることが難しくなるのも同じメカニズムである。本研究では、これまで実験が困難であった水の流れがある条件で「すべり－固着－すべり」を繰り返す実験（フローSHS試験）に挑戦する。そして、固着時に進行する接触域の微小変形によって、摩擦強度回復がどの程度変化するのかいうことを実験によって詳細に調べる。さらに、接触域の微細変形組織観察を行い、流れ環境下での固体接触域の物理化学プロセスの解明を目指す。

Outline of Final Research Achievements

This study attempted to test the hypothesis that “subsurface water flow inhibits fault strength recovery” by renovating our friction apparatus that enable to reproduce the flow environment in natural fault zone. We first established a new slide-hold-slide method under water flow conditions (flow SHS test) was first established, and then conducted the SHS tests on crushed sandstone. The experimental results showed that (1) the recovery of apparent fault strength is hindered as flow velocity increases, and (2) the recovery of effective fault strength, taking into account effective normal stress concept, is independent of flow velocity. This study implies that the variation in the hydraulic properties of fault zones during earthquake cycles is important for understanding the fault strength recovery of seismogenic faults in nature.

Academic Significance and Societal Importance of the Research Achievements

地殻内部の断層に沿って、水は普遍的に流れている。このような水の流れは、地球深部からの物質循環を考察する上で重要であり、地球化学・水理学的な研究が盛んになされている。一方、水圧が断層に及ぼす力学的作用については古くから研究があるが、動的な水の流れそのものが断層の力学に及ぼす影響は全く検討されてこなかった。本研究によって、水の流速変化が断層帯の間隙水圧を変動させ、断層の強度回復過程に影響を及ぼすことが明らかとなった。自然界の地震断層の強度回復プロセスを探るためには、今後、地震サイクルにおける断層帯水理特性の変遷を調べる必要がある。

Research Products

• [Journal Article] Three-dimensional stress state above and below the plate boundary fault after the 2011 Mw 9.0 Tohoku earthquake (2023)
  • Author(s): Lin Weiren、Yamamoto Yuhji、Hirose Takehiro
  • Journal Title: Earth and Planetary Science Letters Volume: 601 Pages: 117888-117888
  • DOI: 10.1016/j.epsl.2022.117888
  • Peer Reviewed / Open Access
• [Journal Article] Formation of clast-cortex aggregates in experimental fault gouges (2022)
  • Author(s): Kim Jae Hoon、Ree Jin-Han、Hirose Takehiro、Oohashi Kiyokazu
  • Journal Title: Tectonophysics Volume: 839 Pages: 229524-229524
  • DOI: 10.1016/j.tecto.2022.229524
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Depth profile of frictional properties in the inner Nankai accretionary prism using cuttings from IODP Site C0002 (2022)
  • Author(s): Fujioka Riho、Katayama Ikuo、Kitamura Manami、Okuda Hanaya、Hirose Takehiro
  • Journal Title: Progress in Earth and Planetary Science Volume: 9 Issue: 1 Pages: 31-31
  • DOI: 10.1186/s40645-022-00488-1
  • Peer Reviewed / Open Access
• [Journal Article] 地震断層の動的すべり挙動の解明に向けた放射光・高速摩擦実験 (2022)
  • Author(s): 廣瀬丈洋，武藤潤
  • Journal Title: 月刊地球 Volume: 44 (1) Pages: 25-29
• [Journal Article] High Fluid-Pressure Patches Beneath the Decollement: A Potential Source of Slow Earthquakes in the Nankai Trough off Cape Muroto (2021)
  • Author(s): T. Hirose, Y. Hamada, W. Tanikawa, N. Kamiya, Y. Yamamoto, T. Tsuji, M. Kinoshita, V. B. Heuer, F. Inagaki, Y. Morono, Y. Kubo
  • Journal Title: Journal of Geophysical Research: Solid Earth Volume: 126 Issue: 6
  • DOI: 10.1029/2021jb021831
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Carbonate Fault Mirrors With Extremely Low Frictional Healing Rates: A Possible Source of Aseismic Creep (2021)
  • Author(s): Park Yohan、Hirose Takehiro、Ree Jin‐Han
  • Journal Title: Geophysical Research Letters Volume: 48 Issue: 11
  • DOI: 10.1029/2021gl093749
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Frictional stability of porous tuff breccia under subsurface pressure conditions and implications for shallow seismicity (2021)
  • Author(s): Mizoguchi Kazuo、Uehara Shin-ichi、Hirose Takehiro、Iizuka Sachiko
  • Journal Title: Earth, Planets and Space Volume: 73 Issue: 1 Pages: 101-101
  • DOI: 10.1186/s40623-021-01419-y
  • Peer Reviewed / Open Access
• [Journal Article] Influence of effective stress and pore-fluid pressure on fault strength and slip localization in calcite gouges (2020)
  • Author(s): Rempe, M., Di Toro, G., Mitchell, T., Smith, S., Hirose, T., Renner, J.
  • Journal Title: Journal of Geophysical Research Solid Earth Volume: 125(11) Issue: 11
  • DOI: 10.1029/2020jb019805
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Rupture to the trench? Frictional properties and fracture energy of incoming sediments at the Cascadia subduction zone (2020)
  • Author(s): Seyler, C., Kirkpatrick, J., Savage, H, Hirose, T., Faulkner, D.
  • Journal Title: Earth and Planetary Science Letters Volume: 546(15) Pages: 116413-116413
  • DOI: 10.1016/j.epsl.2020.116413
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Weakening of quartz rocks at subseismic slip rates due to frictional heating, but not to lubrication by wear materials of hydrated amorphous silica or silica gel (2020)
  • Author(s): Kanagawa, K., Murayama, H., Sugita, A., Takahashi, M., Sawai, M., Furukawa, N. and Hirose, T.
  • Journal Title: Tectonophysics Volume: - Pages: 228429-228429
  • DOI: 10.1016/j.tecto.2020.228429
  • Peer Reviewed / Open Access
• [Journal Article] Hot fluids, burial metamorphism and thermal histories in the underthrust sediments at IODP 370 site C0023, Nankai Accretionary Complex (2020)
  • Author(s): Tsang Man-Yin、Bowden Stephen A.、Wang Zhibin、Mohammed Abdalla、Tonai Satoshi、Muirhead David、Yang Kiho、Yamamoto Yuzuru、Kamiya Nana、Okutsu Natsumi、Hirose Takehiro、Kars Myriam、Schubotz Florence、Ijiri Akira、Yamada Yasuhiro、Kubo Yusuke、Morono Yuki、Inagaki Fumio、Heuer Verena B.、Hinrichs Kai-Uwe
  • Journal Title: Marine and Petroleum Geology Volume: 112 Pages: 104080-104080
  • DOI: 10.1016/j.marpetgeo.2019.104080
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Strength Profile of the Inner Nankai Accretionary Prism at IODP Site C0002 (2019)
  • Author(s): Kitamura Manami、Kitajima Hiroko、Sone Hiroki、Hamada Yohei、Hirose Takehiro
  • Journal Title: Geophysical Research Letters Volume: 46 Issue: 19 Pages: 10791-10799
  • DOI: 10.1029/2019gl083732
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Frictional melt homogenisation during fault slip: Geochemical, textural and rheological fingerprints (2019)
  • Author(s): Wallace Paul A.、De Angelis Sarah H.、Hornby Adrian J.、Kendrick Jackie E.、Clesham Stephen、von Aulock Felix W.、Hughes Amy、Utley James E.P.、Hirose Takehiro、Dingwell Donald B.、Lavallee Yan
  • Journal Title: Geochimica et Cosmochimica Acta Volume: 255 Pages: 265-288
  • DOI: 10.1016/j.gca.2019.04.010
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A New Method for Quality Control of Geological Cores by X-Ray Computed Tomography: Application in IODP Expedition 370 (2019)
  • Author(s): Tonai Satoshi、Kubo Yusuke、Tsang Man-Yin、Bowden Stephen、Ide Kotaro、Hirose Takehiro、Kamiya Nana、Yamamoto Yuzuru、Yang Kiho、Yamada Yasuhiro、Morono Yuki、Heuer Verena B.、Inagaki Fumio、Expedition 370 Scientists
  • Journal Title: Frontiers in Earth Science Volume: 7 Pages: 1-13
  • DOI: 10.3389/feart.2019.00117
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Porosity, permeability, and grain size of sediment cores from gas-hydrate-bearing sites and their implication for overpressure in shallow argillaceous formations: Results from the national gas hydrate program expedition 02, Krishna-Godavari Basin, India (2019)
  • Author(s): Tanikawa Wataru、Hirose Takehiro、Hamada Yohei、Gupta Lallan P.、Ahagon Naokazu、Masaki Yuka、Abe Natsue、Wu Hung Y.、Sugihara Takamitsu、Nomura Shun、Lin Weiren、Kinoshita Masataka、Yamamoto Yuzuru、Yamada Yasuhiro
  • Journal Title: Marine and Petroleum Geology Volume: 108 Pages: 332-347
  • DOI: 10.1016/j.marpetgeo.2018.11.014
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Strength characteristics of sediments from a gas hydrate deposit in the Krishna-Godavari Basin on the eastern margin of India (2018)
  • Author(s): Takehiro Hirose, Wataru Tanikawa, Yohei Hamada, Weiren Lin, Kentaro Hatakeda, Osamu Tadai, Hung Y. Wu, Shun Nomura, Natsue Abe, Lallan P. Gupta, Takamitsu Sugihara, Yuka Masaki, Masataka Kinoshita, Yasuhiro Yamada, NGHP Expedition 02 JAMSTEC Science Team
  • Journal Title: Marine and Petroleum Geology Volume: 印刷中 Pages: 348-355
  • DOI: 10.1016/j.marpetgeo.2018.08.017
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Experimental Investigation of Strength Recovery Under Fluid Flow (2022)
  • Author(s): 濱田 洋平、廣瀬 丈洋
  • Organizer: 日本地球惑星科学連合2022年大会
• [Presentation] 室戸岬沖南海トラフのスロー地震震源域近傍に拡がるパッチ状高圧間隙水帯 (2022)
  • Author(s): 廣瀬 丈洋、濱田 洋平、谷川 亘、神谷 奈々、山本 由弦、辻 健、木下 正高、Heuer Verena 、稲垣 史生、諸野 祐樹、久保 雄介
  • Organizer: 日本地球惑星科学連合2022年大会
• [Presentation] Rapid fault healing after seismic slip: The role of adsorbed water in fault restrengthening (2022)
  • Author(s): John D Bedford、Takehiro Hirose、Yohei Hamada
  • Organizer: 日本地球惑星科学連合2022年大会
• [Presentation] 南海トラフ地震歪蓄積域における応力状態: 紀伊半島沖超深度ライザー孔C0002の解析 (2022)
  • Author(s): 廣瀬 丈洋、濱田 洋平、北島 弘子、Saffer Demian、Tobin Harold
  • Organizer: 日本地質学会第129学術大会
• [Presentation] Strength recovery of fault gouge under fluid flow condition (2021)
  • Author(s): 濱田 洋平、廣瀬 丈洋、谷川 亘
  • Organizer: 日本地球惑星科学連合2021年大会
• [Presentation] 南海トラフ・プレート境界先端に拡がるパッチ状の高間隙水圧帯：室戸沖スロー地震の発生源？ (2021)
  • Author(s): 廣瀬 丈洋、濱田 洋平、谷川 亘、神谷 奈々、山本 由弦、辻 健、木下 正高
  • Organizer: 日本地質学会第128年学術大会
• [Presentation] The role of adsorbed water in frictional weakening and restrengthening during seismic slip (2021)
  • Author(s): John D Bedford, Takehiro Hirose, Yohei Hamada
  • Organizer: AGU Fall Meeting 2021
  • Int'l Joint Research
• [Presentation] A consideration on friction experiments with synchrotron radiation towards unveiling earthquake generation processes (2020)
  • Author(s): Hirose Takehiro, Kono Yoshio
  • Organizer: JpGU-AGU Joint Meeting 2020
  • Int'l Joint Research
• [Presentation] High Fluid Pressure Patch beneath the Decollement as a Potential Source of Slow Earthquakes at the Nankai Trough (2020)
  • Author(s): Hirose Takehiro, Hamada Yohei, Tanikawa Wataru, Kamiya Nana, Yamamoto Yuzuru, Tsuji Takeshi, Kinoshita Masataka
  • Organizer: JpGU-AGU Joint Meeting 2020
  • Int'l Joint Research
• [Presentation] Experimental investigation of strength recovery under fluid flow (2020)
  • Author(s): Hamada Yohei, Hirose Takehiro, Tanikawa Wataru
  • Organizer: AGU Fall Meeting 2020
  • Int'l Joint Research
• [Presentation] 南海トラフ地震発生帯掘削計画（IODP 358次航海）におけるプレート境界断層に向けた超深度ライザー掘削：達成と今後 (2019)
  • Author(s): 廣瀬 丈洋、木下 正高、木村 学、山口 飛鳥、 金川 久一、Tobin Harold、Ikari Matt、北島 弘子、Saffer Demian、前田 玲奈、Toczko Sean、江口 暢久
  • Organizer: 地質学会第126年学術大会
  • Invited
• [Presentation] 南海トラフ地震歪蓄積域における岩石強度と応力状態: NanTroSEIZE Site C0002における解析 (2019)
  • Author(s): 廣瀬 丈洋、濱田 洋平、北村 真奈美、北島 弘子、曽根 大貴、Saffer Demian、Tobin Harold
  • Organizer: 地質学会第126年学術大会
• [Presentation] A new hydrothermal, low to high speed rotary-shearing apparatus: Reproduction of slow/megathrust earthquakes in laboratory (2019)
  • Author(s): Hirose Takehiro, Tanikawa Wataru, Hamada Yohei, Okazaki Keishi
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] Frictional properties of opal gouge at low-temperature hydrothermal conditions and their implications for seismogenic faulting along subduction-zone megathrusts (2019)
  • Author(s): Kanagawa Kyuichi, Nakanishi Tomoya, Kuwana Morito, Sawai Michiyo, Hirose Takehiro
  • Organizer: 日本地球惑星科学連合2019年大会
• [Presentation] 地震断層の強度回復過程に対する間隙水の流速が及ぼす影響 (2019)
  • Author(s): 濱田 洋平、廣瀬 丈洋、谷川 亘
  • Organizer: 日本地質学会第126年学術大会
• [Presentation] Change in redox conditions by a quake in the interior of planets (2019)
  • Author(s): Hirose Takehiro, Nakada Ryoichi, Okazaki Keishi, Shibuya Takazo
  • Organizer: American Geophysical Union Fall Meeting 2019
  • Int'l Joint Research