*Yasuhiko OHARA¹, Ken TAKAI², Hiromi WATANABE², Uta KONNO², Teruaki ISHII³, Sherman BLOOMER⁴, Genki OZAWA⁵, Yuji ONISHI⁶, Masakazu FUJII⁷ (1.Hydrographic and Oceanographic Department of Japan, 2.Japan Agency for Marine-Earth Science and Technology, 3.Fukada Geological Institute, 4.Oregon State University, 5.Kitasato University, 6.Okayama University, 7.Atmosphere and Ocean Research Institute, University of Tokyo)

*Hiromi WATANABE¹, Girish BEEDESSEE² (1.Japan Agency for Marine-Earth Science and Technology, 2.Mauritius Oceanography Institute)

*Hidenori KUMAGAI¹, Hiromi WATANABE², Takuya YAHAGI³, Shigeaki KOJIMA⁴, Shun'ichi NAKAI⁵, Shin TOYODA⁶, Jun-ichiro ISHIBASHI⁷ (1.Submarine Resources Research Project, JAMSTEC, 2.Japan Agency for Marine-Earth Science and Technology, 3.Graduate School of Frontier Sciences, The University of Tokyo, 4.Atmosphere and Ocean Research Institute, The University of Tokyo, 5.Earthquake Research Institute, University of Tokyo, 6.Department of Applied Physics, Faculty of Science, Okayama University of Science, 7.Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University)

*Robert JENKINS¹, Andrzej KAIM², Kazuhiro MORIYA³, Ren HIRAYAMA⁴, Yoshinori HIKIDA⁵ (1.School of Natural System, College of Science and Engineering, Kanazawa University, 2.American Museum of Natural History; Instytut Paleobiologii PAN, 3.Graduate School of Natural Science and Technology, Kanazawa University, 4.Faculty of International Research and Education, Waseda University, 5.Nakagawa Museum of Natural History)

*Kazuhiro MORIYA¹, Robert JENKINS², Andrzej KAIM³, Yoshitsugu KOBAYASHI⁴, Hiroki ECHIZENYA⁴ (1.Graduate School of Natural Science and Technology, Kanazawa University, 2.School of Natural System, College of Science and Engineering, Kanazawa University, 3.American Museum of Natural History; Instytut Paleobiologii PAN, 4.Hokkaido University Museum)

*Moe KATO¹, Tatsuo OJI² (1.Graduate School of Environmental Studies, Nagoya University, 2.Nagoya University Museum)