Change of elastic velocity due to water injection during rock deformation

• Project/Area Number: 26610175
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Petrology/Mineralogy/Economic geology
• Research Institution: Hiroshima University
• Principal Investigator: Katayama Ikuo 広島大学, 理学(系)研究科(研究院), 教授 (10448235)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 岩石破壊 / 弾性波速度 / 間隙水 / 破壊 / 流体

Outline of Final Research Achievements

We measured seismic velocity of rocks in order to understand fluid distribution in the Earth's interior. Experimental results show systematic change of seismic velocity during deformation, in which seismic velocity is related to formation and growth of micro cracks in the samples.

Research Products

• [Journal Article] Rheological Properties of Serpentinite and Their Tectonic Significance (2015)
  • Author(s): 平内健一，片山郁夫
  • Journal Title: Journal of Geography (Chigaku Zasshi) Volume: 124 Issue: 3 Pages: 371-396
  • DOI: 10.5026/jgeography.124.371
  • NAID: 130005087137
  • ISSN: 0022-135X, 1884-0884
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Slow stick-slip of antigorite serpentinite under hydrothermal conditions as a possible mechanism for slow earthquakes (2015)
  • Author(s): Okazaki, K. & Katayama, I.
  • Journal Title: Geophysical Research Letters Volume: 42 Issue: 4 Pages: 1099-1104
  • DOI: 10.1002/2014gl062735
  • Peer Reviewed
• [Journal Article] Deformation microstructures of glaucophane and lawsonite in experimentally deformed blueschists: Implications for intermediate-depth intraplate earthquakes (2015)
  • Author(s): Kim, D., Katayama, I., Wallis, S., Michibayashi, K., Miyake, A. & Seto, Y.
  • Journal Title: Journal of Geophysical Research Volume: 120 Issue: 2 Pages: 1229-1242
  • DOI: 10.1002/2014jb011528
  • Peer Reviewed / Open Access
• [Journal Article] Effect of pore fluid pressure on elastic wave velocities of serpentinites (2014)
  • Author(s): 原田裕也，片山郁夫，河野義生
  • Journal Title: Japanese Magazine of Mineralogical and Petrological Sciences Volume: 43 Issue: 5 Pages: 161-173
  • DOI: 10.2465/gkk.130918
  • NAID: 130004678068
  • ISSN: 1345-630X, 1349-7979
  • Peer Reviewed
• [Journal Article] Rheological decoupling at the Moho and implication to Venusian tectonics (2014)
  • Author(s): Azuma, S., Katayama, I. & Nakakuki, T., Rheological decoupling at the Moho and implication to Venusian tectonics
  • Journal Title: Scientific Reports Volume: 4 Issue: 1 Pages: 4403-4403
  • DOI: 10.1038/srep04403
  • Peer Reviewed
• [Presentation] 蛇紋岩の浸透率に基づくアウターライズ断層沿いのマントルの加水作用の検証 (2015)
  • Author(s): 畠山航平，片山郁夫
  • Organizer: 地質学会
  • Place of Presentation: 長野
  • Year and Date: 2015-09-11
• [Presentation] 三軸圧縮破壊試験における庵治花崗岩の弾性波速度測定 (2015)
  • Author(s): 財間寛太，片山郁夫
  • Organizer: 地球惑星連合大会
  • Place of Presentation: 千葉
  • Year and Date: 2015-05-27
• [Presentation] Fluid pathway in deep subduction zone and its implication to slow earthquakes (2015)
  • Author(s): I. Katayama
  • Organizer: 12th international workshop on water dynamics
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2015-03-09
  • Invited
• [Presentation] Rheological structure in Mars and its time evolution (2014)
  • Author(s): S. Azuma, I. Katayama
  • Organizer: American Geophysical Union, Fall Meeting
  • Place of Presentation: Sanfrancisco, USA
  • Year and Date: 2014-12-19
• [Presentation] Effect of temperature on frictional behavior of smectite and illite: Implication for the updip limit of seismogenic zone along subduction thrust (2014)
  • Author(s): T. Kubo, I. Katayama
  • Organizer: American Geophysical Union, Fall Meeting
  • Place of Presentation: Sanfrancisco, USA
  • Year and Date: 2014-12-19
• [Presentation] Can clay minerals account for the non-asperity on the subducting plate interface? (2014)
  • Author(s): I. Katayama, T. Kubo, H. Sakuma, K. Kawai
  • Organizer: American Geophysical Union, Fall Meeting
  • Place of Presentation: Sanfrancisco, USA
  • Year and Date: 2014-12-18
• [Presentation] 沈み込みプレート境界での非アスペリティの正体は粘土鉱物？ (2014)
  • Author(s): 片山郁夫，久保達郎，佐久間博，河合研志
  • Organizer: 2014年地球惑星科学連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-05-02
• [Presentation] 間隙水圧下での花崗岩の破壊と浸透率変化 (2014)
  • Author(s): 濱崎翔平，片山郁夫
  • Organizer: 2014年地球惑星科学連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-05-02
• [Presentation] 模擬物質の摩擦実験から考察する摩擦挙動に対するメルトの影響と深発月震への考察 (2014)
  • Author(s): 東真太郎，片山郁夫
  • Organizer: 2014年地球惑星科学連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-04-29
• [Presentation] スメクタイト及びイライトの摩擦挙動の温度効果：沈み込み帯での地震発生帯の上限としての可能性 (2014)
  • Author(s): 久保達郎，片山郁夫
  • Organizer: 2014年地球惑星科学連合大会
  • Place of Presentation: 横浜
  • Year and Date: 2014-04-28