Japan Geoscience Union Meeting 2016

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Symbol S (Solid Earth Sciences) » S-CG Complex & General

[S-CG63] Dynamics in mobile belts

Tue. May 24, 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:Yukitoshi Fukahata(Disaster Prevention Research Institute, Kyoto University), Bunichiro Shibazaki(International Institute of Seismology and Earthquake Engineering, Building Research Institute)

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.

9:45 AM - 10:00 AM

[SCG63-28] Deformation processes of island arc during the interseismic period of Tohoku-oki earthquake: Vertical movement and horizontal strains

*Bunichiro Shibazaki1, Takumi Matsumoto2, Takuya NISHIMURA3, Satoshi Miura4, Jun Muto4, Takeshi Iinuma5 (1.International Institute of Seismology and Earthquake Engineering, Building Research Institute, 2.National Research Institute for Earth Science and Disaster Prevention, 3.Disaster Prevention Research Institute, Kyoto University, 4.Graduate School of Science, Tohoku University, 5.Japan Agency for Marine-Earth Science and Technology)