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 10:45 AM - 12:15 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:Shigeaki Ono(Japan Agency for Marine-Earth Science and Technology)

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.

10:45 AM - 11:00 AM

*Masataka Kinoshita1,5, Hikaru Iwamori1,5, Tomoaki Nishikawa2, Ryo Anma3, Sofia Lagarrigue4, Natsue Abe5, Yuka Yokoyama6, Andres Veloso Espinosa4, Alessandra Isabella Rivero Cortes7, Gabriela Pia Lazcano Prado7, Ivan Andres Arriagada Bascuñan7, Satoru Haraguchi5, Kosuke Ota9, Yuji Orihashi8, Kaishi Nakao8, Shogo Numata8, Hajime Shiobara1, Hiroko Sugioka10, Aki Ito5, Nicolás Pérez-Estay11 (1.Earthquake Research Institute, University of Tokyo, 2.DPRI, Kyoto Univ., 3.Tokushima Univ., 4.Pontificia Universidad Catolica de Chile, 5.JAMSTEC, 6.Tokai Univ., 7.Andres Bello University, 8.Hirosaki Univ., 9.AORI, Univ. Tokyo, 10.Graduate School of Science, Kobe Univ., 11.Ministerio de relaciones exteriores, Chile)




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