[S-CG59] Ocean Floor Geoscience

Thu. May 26, 2016 1:45 PM - 3:00 PM 301B (3F)

Convener:*Kyoko Okino(Ocean Research Institute, University of Tokyo), Keiichi Tadokoro(Research Center for Seismology, Volcanology and Earthquake and Volcano Research Center, Nagoya University), Osamu Ishizuka(Geological Survey of Japan, AIST), Tomohiro Toki(Faculty of Science, University of the Ryukyus), Narumi Takahashi(Research and Development Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology), Chair:Norikatsu Akizawa(College of Science and Engineering, Kanazawa University), Tetsuo Matsuno(Earthquake Research Institute, The University of Tokyo), Kazuya Kitada(Research and Development Center for Submarine Resources Japan Agency for Marine-Earth Science and Technology)

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 LIP (Large Igneous Province)s, 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.

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1:45 PM - 2:00 PM

[SCG59-24] Enhanced and asymmetric melting beneath the southern Mariana back-arc spreading ridge, influenced by the subduction of the Pacific plate

*Tetsuo Matsuno¹, Nobukazu Seama², Haruka Shindo², Yoshifumi Nogi³, Kyoko Okino⁴ (1.Earthquake Research Institute, The University of Tokyo, 2.Kobe University, 3.National Institute of Polar Research, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)

2:00 PM - 2:15 PM

[SCG59-25] Deep-sea geomagnetic surveys across fracture zones and transform faults

*Nobukazu Seama¹, Takayuki Kitagawa¹, Kyoko Okino², Masakazu Fujii², Kazuo Nakahigashi¹, Osamu Okamoto¹, Yuka Furukawa³, Takumi Kobayashi³, Yoshifumi Nogi⁴ (1.Department of Planetology, Graduate School of Science, Kobe University, 2.Atmosphere and Ocean Research Institute, University of Tokyo, 3.Department of Planetology, Faculty of Science, Kobe University, 4.National Institute of Polar Research)

2:15 PM - 2:30 PM

[SCG59-26] High-temperature hydrothermal activities around Moho: diopsidites and anorthosites in Wadi Fizh, northern Oman ophiolite

*Norikatsu Akizawa¹, Akihiro Tamura¹, Junji Yamamoto², Tomoyuki Mizukami¹, Keisuke Fukushi³, Marie Python⁴, Shoji Arai¹ (1.College of Science and Engineering, Kanazawa University, 2.Museum Slavic-Eurasian Research Center, Hokkaido University, 3.Institute of Nature and Environmental Technology, Kanazawa University, 4.Department of Natural History Science, Hokkaido University)

2:30 PM - 2:45 PM

[SCG59-27] Two types of basalts erupted in Active rift, Izu-Bonin arc, Japan

*Yasuhiro Hirai¹, Satoshi Okamura¹, Izumi Sakamoto², Ryuichi Shinjo³, Keiji Wada⁴, Takanori Yoshida⁵ (1.Hokkaido Education University, Sapporo, 2.Tokai University, 3.University of the Ryukyus, 4.Hokkaido Education University, Asahikawa, 5.Niki Junior High School, Hokkaido)

2:45 PM - 3:00 PM

[SCG59-28] Researching of alkali-element enrichment using the SEM-EDS mapping analyses of BABB at the site C0012, IODP EXP 333 in the northern Shikoku Basin

*Satoru Haraguchi¹, Koichiro Fujinaga^2,3, Kentaro Nakamura³, Asuka Yamaguchi⁴, Teruaki Ishii⁵ (1.Japan Agency for Marine-Earth Science and Technology, 2.Chiba Institute of Technology, 3.Faculty of Engineering, University of Tokyo, 4.Atmosphere and Ocean Research Institute, 5.Fukada Geological Institute)