[S-MP44] Dynamics of melt, ductile and brittle rock mass and energy system

Wed. May 25, 2016 3:30 PM - 5:00 PM 301A (3F)

Convener:*Noriyoshi Tsuchiya(Graduate School of Environmental Studies, Tohoku University), Hiroshi Asanuma(AIST), Yasuo Ogawa(Volcanic Fluid Research Center Tokyo Institute of Technology), Shigemi Naganawa(The University of Tokyo), Chair:Noriyoshi Tsuchiya(Graduate School of Environmental Studies, Tohoku University)

Nature of rock mass below the brittle-ductile transition (BDT) is of great scientific interest to understand various phenomenon in the earth's crust. We will review and discuss current understanding of characteristics the rock mass below the BDT, including composites, stress, failure mechanism induced by liquid injection and associates earthquake generation mechanism, and water rock interaction, considering engineered geothermal development in the BDT. Discussions on the possible phenomena in the geothermal development in the BDT will be followed in this session.
New drilling technology is key of issues. This session will cover advanced drilling technology under high temperature conditions for energy extraction.

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3:30 PM - 3:45 PM

[SMP44-07] Laboratory study of induced seismicity in a brittle-ductile transition regime

★Invited papers

*Koji Masuda¹ (1.National Institute of Advanced Industrial Science and Technology)

3:45 PM - 4:00 PM

[SMP44-08] Permeability of high-temperature fractured granite under confining stress

*Noriaki Watanabe¹, Motoki Egawa¹, Kiyotoshi Sakaguchi¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University)

4:00 PM - 4:15 PM

[SMP44-09] Depth distributions of magma chambers under old calderas revealed by melt inclusions, and their relation with geofluid activities: Examples from Shirasawa caldera, NE Japan

*Masaoki Uno¹, Taku Suzuki¹, Ryoichi Yamada¹, Satoshi Okumura², Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University, 2.Department of Earth Science, Tohoku University)

4:15 PM - 4:30 PM

[SMP44-10] Occurrence of rock fracture under the rapid decompression condition of hot water

*Nobuo Hirano¹, Satoshi Aoshima¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental studies, Tohoku University)

4:30 PM - 4:45 PM

[SMP44-11] Molecular Dynamics Simulations of NaCl-H₂O fluid: Prediction of Electrical Conductivity of Salt Water in the Crust

*Hiroshi Sakuma¹, Masahiro Ichiki² (1.National Institute for Materials Science, 2.Tohoku University)

4:45 PM - 5:00 PM

[SMP44-12] Development of the Stokes-Darcy coupled flow code for simulating the geothermal system in geological time scale.

*Mikito Furuichi¹, Arthur Bauville^1,2 (1.Japan Agency for Marine-Earth Science and Technology, 2.Swiss National Science Foundation)