[S-CG63] Dynamics in mobile belts

Mon. May 23, 2016 9:00 AM - 10:30 AM A08 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Yukitoshi Fukahata(Disaster Prevention Research Institute, Kyoto University), Norio Shigematsu(Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Aitaro Kato(Graduate School of Environmental Studies, Nagoya University), Hikaru Iwamori(Geochemical Evolution Research Program, Japan Agency for Marine-Earth Science and Technology), Yasutaka Ikeda(Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo), Toru Takeshita(Department of Natural History Sciences, Graduate School of Science, Hokkaido University), Chair:Tohru Watanabe(Gradudate School of Science and Engineering, University of Toyama), Masaoki Uno(Graduate School of Environmental Studies, Tohoku University)

Since the target of dynamics in mobile belts ranges from seismic and volcanic activities, which we can experience during our lifetime, to orogeny and formation of large-scale fault systems, which take place for more than several millions of years, the integration of geophysics, geomorphology and geology is necessary. In order to understand the dynamics in mobile belts from microscopic fracture and flow to macroscopic deformation, we must clarify the spatial and temporal development of stress fields due to plate motion and other tectonic causes and rheological properties of the materials that constitute mobile belts, by using observational, theoretical and experimental approaches. In addition to this, since the rheological properties are greatly affected by fluids in the crust and reactions via fluids, petrological and geochemical approaches are also important. After the 2011 great Tohoku-oki earthquake, we observe large scale changes in seismic activities and crustal movements. The present is the best timing to work on dynamics in mobile belts. This session welcomes presentations from different disciplines, such as seismology, geodesy, tectonic geomorphology, structural geology, petrology, geofluids, etc.

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9:00 AM - 9:15 AM

[SCG63-01] Measurements of the elastic wave velocities under the high P-T conditions and estimation of the crustal composition

*Koichi Yamauchi¹, Masahiro Ishikawa², Hiroshi Sato¹, Takaya Iwasaki¹, Tsuyoshi Toyoshima³ (1.Earthquake Research Institute, The University of Tokyo, 2.Yokohama National University, 3.Niigata University)

9:15 AM - 9:30 AM

[SCG63-02] 3D Electromagnetic imaging of the deep structures and North Anatolian Fault in the Marmara Sea

*Tulay Kaya¹, Yasuo Ogawa¹, Takafumi Kasaya², Mustafa Kemal Tuncer³, Yoshimori Honkura¹, Naoto Oshiman⁴, Masaki Matsushima¹, Weerachai Siripunvaraporn⁵ (1.Tokyo Institute of Technology, 2.Japan Agency for Marine-Earth Science and Technology, 3.Istanbul University, 4.Kyoto University, 5.Mahidol University)

9:30 AM - 9:45 AM

[SCG63-03] Seismic velocities and electrical conductivity at upper- and mid-crustal depths - an inferrence from pore structures

*Tohru Watanabe¹ (1.Gradudate School of Science and Engineering, University of Toyama)

9:45 AM - 10:00 AM

[SCG63-04] High resolution color holography of the crustal structures by means of elastic and electromagnetic ACROSS: A perspective view

*Mineo Kumazawa¹ (1.ELSI, Tokyo Institute of Technology)

10:00 AM - 10:15 AM

[SCG63-05] Mechanical response of polycrystalline rock during hydration reactions –Experimental investigation of reaction-induced stress and strain in CaSO₄-H₂O system–

*Masaoki Uno¹, Syuntaro Masuda¹, Nobuo Hirano¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University)

10:15 AM - 10:30 AM

[SCG63-06] Fluid path in the lower crust

*Yoshihisa Iio¹, Sho Aoki¹, Hiroshi Katao¹, Itaru Yoneda¹, Masayo Sawada¹, Tsutomu Miura¹ (1.Disater Prevention Research Institute, Kyoto University)