Japan Geoscience Union Meeting 2019

Session information

[J] Oral

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

[S-CG60] Investigation of inputs to subduction zones: Influence of tectonic processes on the incoming plate

Mon. May 27, 2019 1:45 PM - 3:15 PM A05 (TOKYO BAY MAKUHARI HALL)

convener:Makoto Yamano(Earthquake Research Institute, the University of Tokyo), Tomoaki Morishita(School of Geoscience and Civil Engineering, College of Science and Technology, Kanazawa University), Gou Fujie(Japan Agency for Marine-Earth Science and Technology), Chairperson:Makoto Yamano(Earthquake Research Institute, University of Tokyo)

Various tectonic processes occur on the seaward side of the trench associated with bending of the incoming oceanic plate, e.g., fracturing of oceanic crust, infiltration of water, and intraplate volcanism. Investigation of these processes and their influence on the incoming plate provides important information on the boundary condition at the trench, inputs to subduction zones. Variation in inputs should significantly affect geophysical/geological phenomena around the plate interface and geochemical cycles in subduction zones. We welcome contributions from a broad range of earth science (geophysics, geology, petrology, and so on) discussing topics related to inputs to subduction zones such as occurrence of tectonic processes due to bending of the incoming plate, modification of the incoming plate by the processes, relationship between the processes and the inherited structure of the incoming plate, and influence of the processes on the subduction plate interface. We hope discussions are made on studies of a variety of subduction zones, including the Japan Trench and the Nankai Trough, and comparative studies among different subduction zones.

1:45 PM - 2:00 PM

*Shuichi Kodaira1,2, Akane Ohira1,2, Gou Fujie1, Tetsuo No1, Yasuyuki Nakamura1, Yuka Kaiho1, Seiichi Miura1 (1.R&D Center for Earthquake and Tsunami Japan Agency for Marine-Earth Science and Technology, 2.Graduate School of Environment and Information Sciences, Yokohama National University)

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