*Akane Yamamoto^1,2, Makoto Otsubo², Hiroaki Koge², Kazutoshi Imanishi² (1.Graduate School of Integrated Basic Sciences, Nihon University, 2.Geological Survey of Japan, AIST)

*Hironori Otsuka¹, Tetsuo No², Ayanori Misawa³, Seitaro Ono⁴, Chiori Tamura⁴, Yu Suzuki⁵, Noboru Yamakawa⁴, Takanori Kagoshima⁶, JING ZHANG⁶, Tomoharu Senju⁷, Asuka Yamaguchi⁴, Hiroaki Koge³, Jin-Oh Park⁴ (1.Kobe University, 2.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 3.Geological Survey of Japan, AIST, 4.Atmosphere and Ocean Research Institute, The University of Tokyo, 5.MOLMEC, 6.University of Toyama, 7.Kyushu University)

*Satoshi Tonai¹, Takami Tachibana¹, Hiroaki Koge² (1.Faculty of Science and Technology, Kochi University, 2.AIST)

*Asuka Yamaguchi¹, Rina Fukuchi², Yohei Hamada², Hiroaki Koge⁴, Kiichiro Kawamura⁵, Akira Ijiri⁶, Hanaya Okuda³, Mari Hamahashi⁵, Konosuke TERUI¹, Takahiro Hosokawa⁷, Kanji Tatsumi⁶, Juichiro Ashi¹, Takafumi Kasaya³, Masataka Kinoshita¹, Koji Kameo⁸, Yoshimi Kubota⁹, Takeshi Tsuji¹, Kazuya Shiraishi³, Gaku Kimura³ (1.The University of Tokyo, 2.Naruto University of Education, 3.JAMSTEC, 4.GSJ, AIST, 5.Yamaguchi University, 6.Kobe University, 7.Kochi University, 8.Chiba University, 9.National Museum of Nature and Science)

*Makoto Otsubo¹, Masataka Kinoshita², Minoru Ikehara³, Ryuta Arai⁴, Ayanori Misawa¹, Hiroaki Koge¹, Katsura Kameo⁵, Chiori Tamura⁵, Ryoji Toda⁵, Stephen P. Obrochta⁶, Takanori Kagoshima⁷, Tomohiro Toki⁸, Daisuke Kuwano⁹, Seiya Fujishima⁹, Akane Yamamoto^1,10, Natsuki Nomura¹¹, Aya Osanai¹¹, Keita Kono¹¹, Issui Ikuma¹¹, Chika Onai¹², Yusei Miyamoto¹², Yuka Taira⁸, Yu Miyagi⁸, Soma Sato⁶, Michelle M. Nishimoto^13,1, Yukihiko Nakano¹⁴, Hikaru Iwamaru¹⁵, Yu Suzuki¹⁶ (1.Geological Survey of Japan, AIST, 2.ERI, The University of Tokyo, 3.Marine Core Research Institute, Kochi University, 4.JAMSTEC, 5.AORI, The University of Tokyo, 6.Akita University, 7.Toyama University, 8.The University of Ryukyus, 9.Kyoto University, 10.Nihon University, 11.Kochi University, 12.Chiba University, 13.Japan Women's University, 14.Marine Works Japan Ltd., 15.Nippon Marine Enterprises, Ltd., 16.MOL Marine & Engineering Co., Ltd.)

*Hiroaki Koge¹, Taichi Sato¹, Jun Arimoto¹, Makoto Otsubo¹, Saki Ishino¹, Yoshiaki Suzuki¹, Osamu Ishizuka¹, Takahiko Inoue¹, Mikiya Yamashita¹, Seishiro Furuyama², Yuka Yokoyama³, Hiroki Minami⁴, Chiori Tamura⁵ (1.Geological Survey of Japan, AIST, 2.Tokyo University of Marine Science and Technology, 3.Tokai University, 4.Japan Coast Guard, 5.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Kyoko Okino¹, Osamu Ishizuka², Kenichiro Tani³, Yumiko Harigane², Hiroaki Koge², JINYU ZHOU⁴ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.National Institute of Advanced Industrial Science and Technology, 3.National Museum of Nature and Science, 4.Institute of Industrial Science, The University of Tokyo)

*Michelle M. Nishimoto^1,2, Hiroaki Koge², Chiori Tamura³, Yu Suzuki⁵, Makoto Otsubo², Masataka Kinoshita⁴, KH-23-11 Shipboard Scientists (1. Japan Women's University, 2.Geological Survey of Japan, AIST, 3.AORI, The University of Tokyo, 4.ERI, The University of Tokyo, 5.MOL Marine & Engineering Co., Ltd.)

*Saki Ishino¹, Osamu Ishizuka¹, Yumiko Harigane¹, Ayanori Misawa¹, Jun Arimoto¹, Takahiko Inoue¹, Hiroaki Koge¹, Kenichiro Tani² (1.Geological Survey of japan, AIST, 2.Department of Geology and Paleontology, National Museum of Nature and Science)