[S-CG57] Geofluids and dynamics in subduction zones

Tue. May 24, 2016 3:30 PM - 5:00 PM A08 (APA HOTEL&RESORT TOKYO BAY MAKUHARI)

Convener:*Ikuo Katayama(Department of Earth and Planetary Systems Science, Hiroshima University), Atsushi Okamoto(Graduate School of Environmental Studies), Tatsuhiko Kawamoto(Institute for Geothermal Sciences, Graduate School of Science, Kyoto University), Junichi Nakajima(Department of Earth and Planetary Sciences, Tokyo Institute of Technology), Chair:Manabu Morishige(Institute for Geothermal Sciences, Graduate School of Science, Kyoto University), Ryosuke Oyanagi(Graduate school of environmental studies, tohoku university)

Fluids from subducting slabs trigger earthquakes and low frequency tremors, and return back as springs in for-arc regions and produce magmas beneath volcanic arcs. Geofluids can be present everywhere and migrate in subduction zones and produce spatial and temporal variations in physical and chemical properties of materials. Thus the geofluids play an important role in the subduction-zone dynamics. This interdisciplinary session aims to promote the exchange of knowledge from cutting edge studies on geofluids and give perspectives to each participant. We continue to strongly encourage young researchers to participate in this session, because understanding geofluids can be essential in many geological and geophysical processes.

+Add all to schedule

3:30 PM - 3:45 PM

[SCG57-07] Seismic velocity and seismicity in the subducting crust of the Pacific slab beneath the eastern part of Hokkaido

*Takahiro Shiina¹, Junichi Nakajima², Toru Matsuzawa¹, Genti Toyokuni¹, Saeko Kita³ (1.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University, 2.Graduate School of Science and Engineering, Tokyo Institute of Technology, 3.Graduate School of Science, Hiroshima University)

3:45 PM - 4:00 PM

[SCG57-08] Three-dimensional numerical modeling for subduction thermal regime, slab dehydration, and mantle flow beneath Kanto to Tohoku, Japan

*Yingfeng Ji¹, Shoichi Yoshioka¹ (1.Research Center for Urban Safety and Security, Kobe University)

4:00 PM - 4:15 PM

[SCG57-09] Geo-fluids distribution in mantle inferred from the electrical conductivity and simulated thermal structures beneath Kyushu

*Maki Hata¹, Makoto Uyeshima², Shoichi Yoshioka³ (1.Advanced Industrial Science and Technology, 2.Earthquake Research Institute, The University of Tokyo, 3.Research Center for Urban Safety and Security, Kobe University)

4:15 PM - 4:30 PM

[SCG57-10] Dynamics of heat and material transportation during subduction initiation in the Setouchi Volcanic Belt

*Fumitoshi Morisato¹, Tsuyoshi Iizuka¹, Hirochika Sumino², Tomoyuki Shibata³, Masako Yoshikawa³, Kazuhito Ozawa¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo, 3.Beppu Geothermal Research Laboratory, Kyoto University)

4:30 PM - 4:45 PM

[SCG57-11] Deformation and metasomatic histories of Pinatubo peridotite estimated from microstructural observation

*Takafumi Yamamoto¹, Jun-ichi Ando¹, Naotaka Tomioka², Tetsuo Kobayashi³ (1.Department of Earth and Planetary Systems Science, Hiroshima University, 2.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 3.Department of Earth and Environmental Science, Kagoshima University)

4:45 PM - 5:00 PM

[SCG57-12] Dynamics of back-arc spreading

*Kazuhiko Ishii¹, Hirotsugu Nodake¹ (1.Department of Physical Science, Graduate School of Sciences, Osaka Prefecture University)