[S-CG48] Ocean Floor Geoscience

Wed. May 29, 2024 9:00 AM - 10:15 AM 302 (International Conference Hall, Makuhari Messe)

convener:Kyoko Okino(Atmosphere and Ocean Research Institute, The University of Tokyo), Keiichi Tadokoro(Research Center for Seismology, Volcanology and Earthquake and Volcano Research Center, Nagoya University), Chairperson:Keishiro Azami(Department of Resources and Environmental Engineering, School of Creative Science and Engineering, Waseda University), Takeshi Iinuma(National Research and Development Agency Japan Agency for Marine-Earth Science and Technology)

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's structure and dynamics, and also related to Earth's environments through the hydrosphere and atmosphere. Seafloor-derived rocks and sediments record Earth's evolution and heat/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 and intraplate magmatism, crustal movement and structre, etc. Every field of research and every approach are welcomed. The session aims to encourage discussion among scientists from different study fields and to integrate our understanding of the ocean floor. The session is co-chaired by K. Okino (Univ. Tokyo), K. Tadokoro (Nagoya Univ.), T. Toki (Univ. Ryukyus), Y. Yamamoto (JAMSTEC) and N. Akizawa (Univ. Tokyo).

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9:00 AM - 9:15 AM

[SCG48-01] No significant deformation at the axis of the Kuril Trench off Nemuro based on Acoustic Distant Meter survey

*Shoutarou Matsumoto¹, Motoyuki Kido², Ryota Hino¹, Yusaku Ohta³ (1.Graduate School of Science, Tohoku University, 2.International Research Institute for Disaster Science, Tohoku University, 3.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of Science, Tohoku University)

9:15 AM - 9:30 AM

[SCG48-02] Evaluation of UAV-based GNSS-A observation system specifications through a sea trial

*Yuto Yoshizumi¹, Yusuke Yokota², Masata Kanada³, Shusaku Yamaura³, Takenori Hashimoto³, Tomohiro Inoue², Kenji Kouno² (1.Graduate School of Frontier Sciences, The University of Tokyo, 2.Institute of Industrial Science, The University of Tokyo, 3.Space Entertainment Laboratory Co., Ltd.)

9:30 AM - 9:45 AM

[SCG48-03] Characterization of the ferromanganese nodules distribution around Minamitorishima Island based on an analysis of the acoustic backscatter intensity and seafloor images

*Wataru Sasaki¹, Kazutaka Yasukawa¹, Kentaro Nakamura^1,2, Shiki Machida², Kato Yasuhiro^1,2 (1.Department of Systems Innovation, School of Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology)

9:45 AM - 10:00 AM

[SCG48-04] Environmental impact assessment for the development of seafloor massive sulfides

*Tatsuo Fukuhara¹, Yuya Yamamoto¹, Shunsuke Kondo¹, Minako Tanaka¹, Takanori Sugiyama¹, Yosuke Onishi¹, Yumi Komatsubara², Tomomi Eriguchi², Tetsuya Miwa³, Kyoko Yamaoka⁴, Akira Iguchi⁴, Atsushi Suzuki⁴, Akiyuki Ishida⁵, Saeko Nojiri⁵ (1.KANSO TECHNOS Co., Ltd., 2.Science and Technology Co., Ltd., 3.Japan Agency for Marine-Earth Science and Technology, 4.The National Institute of Advanced Industrial Science and Technology, 5.Japan Organization for Metals and Energy Security)

10:00 AM - 10:15 AM

[SCG48-05] Verification of metal particles reportedly contained in hydrothermal ferromanganese oxides and igneous rocks in the Sea of Japan

*Keishiro Azami¹, Tokio Doshita², Kanta Koyama², Shiki Machida¹, Kentaro Nakamura^3,1, Kato Yasuhiro^4,1, Estuo Uchida² (1.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2.Faculty of Science and Engineering, Waseda University, 3.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 4.Department of Systems Innovation, School of Engineering, The University of Tokyo)

Session information