*Megumi Matsumoto¹, Junya Matsuno², Akira Tsuchiyama^2,3, Tomoki Nakamura¹, Yuma Enokido¹, Masahiro Yasutake⁴, Kentaro Uesugi⁴, Akihisa Takeuchi⁴, Satomi Enju⁵, Shota Okumura⁶, Itaru Mitsukawa⁶, Sun Mingqi³, Akira Miyake⁶, Hisayoshi Yurimoto⁷, Takaaki Noguchi⁶, Ryuzi Okazaki⁸, Hikaru Yabuta⁹, Kanako Sakamoto¹⁰, Shogo Tachibana¹¹, Sei-ichiro Watanabe¹², Yuichi Tsuda¹⁰ (1.Tohoku University, 2.Ritsumeikan University, 3.GIG/CAS, 4.JASRI/SPring-8, 5.Ehime University, 6.Kyoto University, 7.Hokkaido University, 8.Kyushu University, 9.Hiroshima University, 10.JAXA/ISAS, 11.University of Tokyo, 12.Nagoya University)

*Itaru Mitsukawa¹, Yohei Igami¹, Tetsu Kogiso¹, Norikatsu Akizawa², Akira Miyake¹ (1.Kyoto University, 2.University of Tokyo)

*Norikatsu Akizawa^1,2, Akira Ishikawa³, Tetsu Kogiso⁴, Katsuhiko Suzuki⁵, Akira Miyake⁶, Itaru Mitsukawa⁶ (1.Department of Ocean Floor Geoscience, Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Macquarie University, 3.Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 4.Graduate School of Human and Environmental Studies, Kyoto University, 5.Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology, 6.Department of Geology and Mineralogy, Kyoto University)

*Itaru Mitsukawa¹, Yohei Igami¹, Yoshio Takahashi², Shohei Yamashita³, Takahiro Kawai², Tetsu Kogiso¹, Norikatsu Akizawa², Akira Miyake¹ (1.Kyoto University, 2.University of Tokyo, 3.High Energy Accelerator Research Organization (KEK))