[S-CG63] Dynamics in mobile belts

Mon. May 23, 2016 3:30 PM - 5:00 PM 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:Takuya NISHIMURA(Disaster Prevention Research Institute, Kyoto University), Kenta Kobayashi(Department of Geology, Faculty of Science, Niigata 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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3:30 PM - 3:45 PM

[SCG63-19] Effect of crustal partial melting on tectonics of Japan Arc: Case study in the Niigata-Kobe Tectonic Zone (NKTZ)

*Eiichi Takahashi¹, Junichi Nakajima¹ (1.Earth and Planetary Sciences, Graduate School of Science and Technology, Tokyo Institute of Technology)

3:45 PM - 4:00 PM

[SCG63-20] Implications of Persistent Intraplate Deformation in the Niigata-Kobe Tectonic Zone, Central Japan

*Takeshi Sagiya^1,2, Angela Meneses-Gutierrez² (1.Disaster Mitigation Research Center, Nagoya University, 2.Graduate School of Environmental Studies, Nagoya University)

4:00 PM - 4:15 PM

[SCG63-21] Fold-and-fault structure associated with the Naganoken-hokubu Earthquake in 2014

*Kenta Kobayashi¹, Keisuke Iida¹, Takuma Katori² (1.Department of Geology, Faculty of Science, Niigata University, 2.Graduate School of Science and Technology, Niigata University)

4:15 PM - 4:30 PM

[SCG63-22] Spatial variation of creep rate on the Philippine fault based on alignment array surveys

*Hiroyuki Tsutsumi¹, Jeffrey S. Perez² (1.Department of Geophysics, Graduate School of Science, Kyoto University, 2.Philippine Institute of Volcanology and Seismology)

4:30 PM - 4:45 PM

[SCG63-23] Recent crustal deformation and comparison among geodetic, seismological, and geological strain rate in the San-in shear zone

*Takuya NISHIMURA¹, Youichiro Takada² (1.Disaster Prevention Research Institute, Kyoto University, 2.Faculty of Science, Hokkaido University)

4:45 PM - 5:00 PM

[SCG63-24] Distribution of fault system and its characteristics around the aftershock area of the 2000 Western Tottori earthquake

*Hideki Mukoyoshi¹, Hideto Uchida¹, Kenta Kobayashi², Tetsuro Hirono³, Masakatsu Yamaguchi⁴, Kohei Yamamoto⁴ (1.Department of Geoscience, Interdisciplinary Graduate School of Science and Engineering, Shimane University, 2.Fuculty of science, 3.Graduate school of science, Osaka University, 4.Interdisciplinary Faculty of Science and Engineering, Shimane University)