Japan Geoscience Union Meeting 2022

Session information

[J] Oral

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

[S-CG50] Structure, evolution and deformation of island arcs associated with subduction processes

Thu. May 26, 2022 3:30 PM - 5:00 PM 102 (International Conference Hall, Makuhari Messe)

convener:Masahiro Ishikawa(Graduate School of Environment and Information Sciences, Yokohama National University), convener:Masanao Shinohara(Earthquake Research Institute, University of Tokyo), Makoto MATSUBARA(National Research Institute for Earth Science and Disaster Resilience), convener:Tatsuya Ishiyama(Earthquake Research Institute, University of Tokyo), Chairperson:Makoto MATSUBARA(National Research Institute for Earth Science and Disaster Resilience), Masanao Shinohara(Earthquake Research Institute, University of Tokyo)

Subduction processes such as accretion, back-arc-spreading, and arc-arc collisions have created overall architectures of the Japanese island arc through geologic time. Recent advances in seismic imaging of crust and mantle by both passive and controlled source have successfully provided plenty of new information on their structural, mechanical, rheological and thermal properties that have presumably strong controls on tectonic activities in the overriding plate including faulting, seismicity and crustal deformation in various timescales. Our goal of this session is to advance the understanding of overriding plate deformation in various timescales based on state-of-the-art results of observational, experimental and modeling studies encompassing both earthquake cycles and tectonic evolution of the Japanese island arc and other plate convergent margins. We welcome contributions from seismology, exploration geophysics, geodesy, tectonic geomorphology, physical geology, petrology, geochemistry, geochronology, rheology and numerical/analogue modeling on deformation processes associated with plate subduction processes and related feedbacks.

3:30 PM - 3:45 PM

*Hiroshi Sato1,2, Tatsuya Ishiyama1, Akinori Hashima3, Naoko Kato4,1, Shin Koshiya5, Makoto MATSUBARA6 (1.Earthquake Prediction Research Center, Earthquake Research Institute, The University of Tokyo, 2.Center for Integrated Research and Education of Natural Hazards, Shizuoka University, 3.Japan Agency for Marine-Earth Science and Technology, 4.Nihon University, College of Humanities and Science, 5.Iwate university, Faculty of Science and Engineering, 6.The National Research Institute for Earth Science and Disaster)

4:15 PM - 4:30 PM

*Tatsuya Ishiyama1, Hiroshi Sato2, Naoko Kato3, Shin Koshiya4 (1.Earthquake Research Institute, the University of Tokyo, 2.Center for Integrated Research and Education of Natural Hazards, Shizuoka University, 3. College of Humanities and Sciences, Nihon University, 4.Department of Civil and Environmental Engineering, Faculty of Science and Engineering, Iwate University)

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