[S-CG66] Ocean Floor Geoscience

convener:Kyoko Okino(Atmosphere and Ocean Research Institute, The University of Tokyo)

Most of Earth's volcanism and much of its tectonic activity occur on and beneath the seafloor. Various phenomena on the seafloor are closely linked to plate tectonics, Earth structure and dynamics, and also related to Earth's environments through the hydrosphere and atmosphere. Seafloor rocks and sediments record Earth's evolution and heat and material fluxes on the Earth. Ocean Floor Geoscience session covers a broad range of research on seafloor such as mid-ocean ridge process, subduction dynamics, arc magmatism, hot spot and LIPs, crustal movement and structure etc. Every field of researches and every approaches are welcomed.The session aims to encourage discussion among scientists from different study fields and to integrate our understanding of ocean floor.The session is co-chaired by K. Tadokoro (Nagoya Univ.), O. Ishizuka (AIST), T. Toki (Univ. Ryukyus), and N. Takahashi (JAMSTEC).

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[SCG66-07] MOWALL – Moho Observation along long transform fault WALLs

*Kyoko Okino¹, Tomoaki Morishita², Shiki Machida³, Kentaro Nakamura¹, Yasuhiko Ohara⁴, Kenichiro Tani⁵, Osamu Ishizuka⁶ (1.The University of Tokyo, 2.Kanazawa University, 3.Chiba Instutue of Technology, 4.Japan Coast Guard, 5.National Museum of Nature and Science, 6.National Institute of Advanced Industrial Science and Technology)

[SCG66-08] Geochemical variation across the segment in the southernmost segment of the Central Indian Ridge

*Hiroshi Sato¹, Shiki Machida², Ryoko Senda³ (1.School of Business Administration, Senshu University, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Faculty of Social and Cultural Studies, Kyushu University)

[SCG66-09] How does the style of plate spreading govern the architecture of oceanic crust

*Susumu Umino¹, Tomoaki Morishita¹, Yuki Kusano² (1.Department of Earth Sciences, Kanazawa University, 2.Geological Survey of Japan)

Cancelled

[SCG66-10] The shallow crustal variation by bending effect of the oceanic plate in the east off Hawaiian islands, central Pacific

*Mikiya Yamashita^1,2, Gou Fujie¹, Seiichi Miura¹, Shuichi Kodaira¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.National Institute of Advanced Industrial Science and Technology)

[SCG66-11] Simple Topographic Parameter for Along-trench Friction Distribution of Shallow Megathrust Fault

*Hiroaki Koge¹, Juichiro Ashi², Jin-Oh Park², Ayumu Miyakawa¹, Suguru Yabe¹ (1.AIST, 2.AORI, UTokyo)

[SCG66-12] Effects of surface friction of subducting seamount on topographic evolution of the overriding accretionary prism: insights from sandbox experiment

*Yuichi Okuma^1,2, Hiroaki Koge⁴, Yasuhiro Yamada³, Juichiro Ashi^2,1, Asuka Yamaguchi¹ (1.Atmosphere and Ocean Research Institute, the University of Tokyo, 2.Department of Natural Environmental Studies, Graduate School of Frontier Science, the University of Tokyo, 3.Japan Agency for Marine-Earth Science and Technology, 4.The National Institute of Advanced Industrial Science and Technology)