Clay mineralogical analysis on fault rocks by mechanochemical approach

2011 Fiscal Year Final Research Report

• Project/Area Number: 22840018
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: The University of Tokyo
• Principal Investigator: KAMEDA Jun 東京大学, 大学院・理学系研究科, 特任助教 (40568713)
• Project Period (FY): 2010 – 2011
• Keywords: 粘土鉱物 / メカノケミストリー / 付加体 / 地震 / 津波

Research Abstract

Clay mineral characteristics in and around the slip surfaces of frontal thrusts in the Miura-Boso accretionary prism was analyzed for better understanding of their slip behaviors. XRD and TEM analyses revealed a local progress of illitization reaction only within the fault gouges. This reaction might be driven by transient thermogenesis along the slip surface, and indicates probable co-seismic slip propagation up to the prism toe at the subduction margin.

Research Products

• [Journal Article] Silica diagenesis and its effect on interplate seismicity in cold subduction zones (2012)
  • Author(s): Kameda, J., S., Hina, K., Kobayashi, A., Yamaguchi, Y., Hamada, Y., Yamamoto, M., Hamahashi, G., Kimura
  • Journal Title: Earth and Planetary Science Letters Pages: 317-318, 136-144
  • DOI: doi:10.1016/j.epsl.2011.11.041
  • Peer Reviewed
• [Journal Article] A new source of water in seismogenic subduction zones (2011)
  • Author(s): Kameda, J., A., Yamaguchi, S., Saito, H., Sakuma, K., Kawamura, G., Kimura
  • Journal Title: Geophysical Research Letters Volume: 38 Pages: L22306
  • DOI: doi:10.1029/2011GL048883
  • Peer Reviewed
• [Journal Article] Progressive illitization in fault gouge caused by seismic slip propagation along a megasplay fault in the Nankai Trough (2011)
  • Author(s): Yamaguchi, A., A. Sakaguchi, T. Sakamoto, K. Iijima, J. Kameda, G. Kimura, K. Ujiie, F. M. Chester, O. Fabbri, D. Goldsby, A. Tsutsumi, C. F. Li, D. Curewitz
  • Journal Title: Geology Volume: 39 Pages: 995-998
  • DOI: doi:10.1130/G32038.1
  • Peer Reviewed
• [Journal Article] Mineralogical characterization of Asian dust collected in Fukuoka, southwest Japan (2011)
  • Author(s): Watanabe, K., M. Sekiya, J. Kameda, S. Wada, T. Kogure
  • Journal Title: Clay Science Volume: 15 Pages: 43-51
  • URL: http://www.cssj2.org/
  • Peer Reviewed
• [Journal Article] Smectite to chlorite conversion by frictional heating along a subduction thrust (2011)
  • Author(s): Kameda, J., K. Ujiie, A. Yamaguchi, G. Kimura
  • Journal Title: Earth and Planetary Science Letters Volume: 305 Pages: 161-170
  • DOI: doi:10.1016/j.epsl.2011.02.051
  • Peer Reviewed
• [Journal Article] Low-grade metamorphism around the down-dip limit of seismogenic subduction zones : Examples from an ancient accretionary complex in the Shimanto Belt, Japan (2011)
  • Author(s): Kameda, J., H. Raimbourg, T. Kogure, G. Kimura
  • Journal Title: Tectonophysics Volume: 502 Pages: 383-392
  • DOI: doi:10.1016/j.tecto.2011.02.010
  • Peer Reviewed
• [Journal Article] The occurrence and structure of vermiform chlorite (2010)
  • Author(s): Kameda, J., A. Okamoto, T. Mikouchi, R. Kitagawa, T. Kogure
  • Journal Title: Clay Science Volume: 14 Pages: 155-161
  • URL: http://www.cssj2.org/
  • Peer Reviewed
• [Journal Article] Smectite swelling in the Miura-Boso accretionary prism : Possible cause for incipient decollement zone formation (2010)
  • Author(s): Kameda, J., Y. Yamamoto, G. Kimura
  • Journal Title: Tectonophysics Volume: 494 Pages: 75-84
  • DOI: doi:10.1016/j.tecto.2010.08.008
  • Peer Reviewed
• [Journal Article] Tectonic melange as fault rock of subduction plate boundary
  • Author(s): Kimura, G., A., Yamaguchi, M., Hojo, Y., Kitamura, J., Kameda, K., Ujiie, Y., Hamada, M., Hamahashi, S., Hina
  • Journal Title: Tectonophysics Volume: (in press)
• [Presentation] Silica diagenesis and its effect on interplate seismicity in cold subduction zones (2011)
  • Author(s): Kameda, J.
  • Organizer: American Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2011-12-02
• [Presentation] Prograde clay mineral reactions along an ancient frontal thrust (2011)
  • Author(s): Kameda, J.
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 千葉幕張メッセ
  • Year and Date: 2011-05-26
• [Presentation] A possible source of water in seismogenic subduction zone (2010)
  • Author(s): Kameda, J.
  • Organizer: American Geophysical Union Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2010-12-14
• [Presentation] Smectite to chlorite conversion by frictional heating along a subduction thrust (2010)
  • Author(s): Kameda, J.
  • Organizer: 日本地日本地球惑星科学連合大会
  • Place of Presentation: 千葉幕張メッセ
  • Year and Date: 2010-05-24
• [Book] In : Fagereng, A., Toy, V. G., Rowland, J.(Eds), Geology of the EarthquakeSource : A Volume in Honour of RickSibson, Geological Society ofLondon, Special Publications (2011)
  • Author(s): Ujiie, K., A. Tsutsumi, and J. Kameda
  • Total Pages: 267-285
  • Publisher: Reproduction ofthermal pressurization and fluidization of clay-rich faultgouges by high-velocity frictionexperiments and implications forseismic slip in natural faults