Deformation mechanism of the Nobeoka thrust melange

• Project/Area Number: 25800283
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Geology
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: KITAJIMA Hiroko 独立行政法人産業技術総合研究所, 活断層・火山研究部門, 外来研究員 (60635796)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: メランジュ / 付加体 / 変形実験 / 延岡衝上断層 / 変形

Outline of Final Research Achievements

I experimentally studied mechanical properties and deformation mechanism on an accretionary prism, the Shimanto Belt in Kyushu island, to understand the strain accomodation and release in the subduction system. I conducted triaxial deformation experiments on both phyllite from hanging wall and melange from footwall of the Nobeoka thrust fault, and found that the samples deform brittle at lower effective pressure and ductile at higher effective pressure. I observed a difference in strength across the Nobeoka thrust fault; the phyllite is slightly stronger than the melange.

Research Products

• [Journal Article] Displacement and dynamic weakening processes in smectite-rich gouge from the Central Deforming Zone of the San Andreas Fault (2014)
  • Author(s): French, M. E., Kitajima, H., Chester, J. S., Chester, F. M. and Hirose, T.
  • Journal Title: Journal of Geophysical Research Volume: 119 Issue: 3 Pages: 1-16
  • DOI: 10.1002/2013jb010757
  • Peer Reviewed
• [Journal Article] Hydraulic and acoustic properties of the active Alpine Fault, New Zealand: Laboratory measurements on DFDP-1 drill core (2014)
  • Author(s): Carpenter, B. M., Kitajima, H., Sutherland, R., Townend, J., Toy, V. G. and Saffer, D. M.
  • Journal Title: Earth and Planetary Science Letters Volume: 390 Pages: 45-51
  • DOI: 10.1016/j.epsl.2013.12.023
  • Peer Reviewed
• [Journal Article] IODP Expedition 338: NanTroSEIZE Stage 3: NanTroSEIZE plate boundary deep riser 2 (2014)
  • Author(s): Moore, G. F., Kanagawa, K., Strasser, M., Dugan, B., Maeda, L., Toczko, S. and the IODP Expedition 338 Scientific Party
  • Journal Title: Scientific Drilling Volume: 17 Pages: 1-12
  • DOI: 10.5194/sd-17-1-2014
  • Peer Reviewed
• [Journal Article] NanTroSEIZE Stage 3: NanTroSEIZE plate boundary deep riser 2 (2014)
  • Author(s): Strasser, M., Dugan, B., Kanagawa, K., Moore, G. F., Toczko, S., Maeda, L. and the Expedition 338 Scientists
  • Journal Title: IODP Proceedings Volume: 338 Pages: 1-633
  • DOI: 10.2204/iodp.proc.338.2014
• [Presentation] Estimation of in-situ stress and strength along the Nankai Trough subduction megathrust (2015)
  • Author(s): Kitajima, H., and D. Saffer
  • Organizer: Japan Geoscience Union Meeting 2015
  • Place of Presentation: 幕張メッセ（千葉県）
  • Year and Date: 2015-05-25
  • Invited
• [Presentation] Mechanical properties of foliated cataclasites from the Nobeoka thrust (2014)
  • Author(s): Kitajima, H., M. Takahashi, G. Kimura, A. Yamaguchi, S. Saito, M. Hamahashi, R. Fukuchi, J. Kameda, Y. Hamada, K. Fujimoto, Y. Hashimoto, Y. Kitamura, S. Hina, and M. Eida
  • Organizer: European Geosciences Union General Assembly
  • Place of Presentation: Vienna, Austria
  • Year and Date: 2014-04-30
• [Presentation] Stress states and physical properties along the Nankai Trough plate boundary
  • Author(s): Kitajima, H., and Saffer D. M.
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ
  • Invited
• [Presentation] ドレライト粉砕ガウジの低～高速摩擦特性
  • Author(s): 和田純一, 野田博之, 岡崎啓史, 大橋聖和, 北島弘子, 高橋美紀, 金川久一
  • Organizer: Japan Geoscience Union Meeting 2013
  • Place of Presentation: 幕張メッセ
• [Presentation] Frictional behavior and BET surface are changes of SAFOD gouge at intermediate to seismic slip rates
  • Author(s): Sawai, M., Shimamoto, T., Mitchell, T., Kitajima, H., and Hirose T.
  • Organizer: European Geosciences Union General Assembly 2013
  • Place of Presentation: Austria Center Austria Center Vienna, Vienna, Austria
• [Presentation] Physical properties and Consolidation behavior of sediments from the N. Japan subduction zone
  • Author(s): Valdez, R. D., R. M., Lauer, M., Ikari, H., Kitajima, and D. M., Saffer
  • Organizer: American Geophysical Union 2013 Fall Meeting
  • Place of Presentation: Moscone Center, San Francisco, U.S.A.
• [Presentation] Porosity, Pore Size, and Permeability of Sediments from Site C0002, IODP Expedition 338
  • Author(s): Dugan, B., A., Huepers, I., Song, H., Kitajima, and L., Esteban
  • Organizer: American Geophysical Union 2013 Fall Meeting
  • Place of Presentation: Moscone Center, San Francisco, U.S.A.
• [Presentation] Smectite-illite transition during coseismic slip
  • Author(s): Takahashi, M., and H. Kitajima
  • Organizer: American Geophysical Union 2013 Fall Meeting
  • Place of Presentation: Moscone Center, San Francisco, U.S.A.
• [Presentation] ドレライト粉砕ガウジの低～高速摩擦特性
  • Author(s): 和田純一,金川久一,大橋聖和, 高橋美紀, 北島, 弘子,井上厚行,廣瀬丈洋,安東淳一
  • Organizer: 日本地質学会第120年学術大会
  • Place of Presentation: 東北大学川内北キャンパス
• [Presentation] Physical properties of Nankai accretionary prism sediments at Site C0002, IODP Expedi- tion 348
  • Author(s): Kitamura, M., Kitajima, H., Henry, P.,Valdez, R., J. Matthew, and Expedition 348 Scientists
  • Organizer: Japan Geoscience Union Meeting 2014
  • Place of Presentation: Pacifico Yokohama, Yokohama
• [Presentation] Approximate General Coulomb Model for Accretionary Prisms: An Integrated Study of the Kumano Transect, Nankai Subduction Zone, Southwest Japan
  • Author(s): Skarbek, R., M. Ikari, A. Hupers, A. Rempel, D. WIlson, and H. Kitajima
  • Organizer: European Geosciences Union General Assembly 2014
  • Place of Presentation: Austria Center Austria Center Vienna, Vienna, Austria
• [Presentation] Mechanical properties of foliated cataclasites from the Nobeoka thrust
  • Author(s): Kitajima, H., M. Takahashi, G. Kimura, A. Yamaguchi, S. Saito, M. Hamahashi, R. Fukuchi, J. Kameda, Y. Hamada, K. Fujimoto, Y. Hashimoto, Y. Kitamura, S. Hina, and M. Eida
  • Organizer: European Geosciences Union General Assembly 2014
  • Place of Presentation: Austria Center Austria Center Vienna, Vienna, Austria
• [Presentation] Physical properties of the Nankai inner accretionary prism at Site C0002, IODP Expedition 348
  • Author(s): Kitamura, M., Kitajima, H., Henry, P.,Valdez, R., J. Matthew, and Expedition 348 Scientists
  • Organizer: European Geosciences Union General Assembly 2014
  • Place of Presentation: Austria Center Austria Center Vienna, Vienna, Austria