*Katsuhiko Suzuki¹, Asako Takamasa^2,1, Yusuke Fukami^3,1, Tsuyoshi Iizuka⁴, Yuji Orihashi⁵, Ryuichi Shinjo⁶, Takeshi Hanyu⁷ (1.Submarine Resources Research Center, JAMSTEC, 2.JAPAN NUS CO., Ltd, 3.Department of Chemistry, Gakushuin University, 4.Department of Earth and Planetary Science, The University of Tokyo, 5.Department of Earth and Environmental Sciences, Hirosaki University, 6.Department of Physics and Earth Sciences, University of the Ryukyus , 7.Volcanoes and Earth’s Interior Research Center, JAMSTEC)

*Takeshi Hanyu¹, Nobukazu Seama^2,3, Satoru Tanaka¹, Yoshiyuki Tatsumi^3,2, Shunsuke Abe², Morihisa Hamada¹, Tomoko Hanyu³, Hikaru Iwamaru³, Souko Kado², Katsuya Kaneko^2,3, Ryohei Kikuchi², Koji Kiyosugi³, Tetsuo Matsuno^3,2, Iona McIntosh¹, Takashi Miyazaki¹, Reina NAKAOKA³, Nobuyuki Okamoto³, Taiki Orii², Satoshi Shimizu³, Tsuyoshi Shintani⁴, Keiko Suzuki-Kamata^3,2, Maria Luisa Tejada¹, Kenta Ueki¹, Bogdan Stefanov Vaglarov¹ (1.Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, 2.Kobe University, Graduate School of Science, 3.Kobe University, Kobe Ocean Bottom Exploration Center, 4.Osaka City University, Graduate School of Science)

*Satoshi Shimizu^1,2, Reina NAKAOKA¹, Nobukazu Seama^3,1, Tomoko Hanyu¹, Keiko Suzuki-Kamata^1,3, Koji Kiyosugi¹, Katsuya Kaneko^3,1, Tetsuo Matsuno¹, Hikaru Iwamaru^1,2, Takeshi Hanyu⁴, Shunsuke Abe⁵, Nobuyuki Okamoto^1,6, Yoshiyuki Tatsumi^1,3 (1.Kobe Ocean-Bottom Exploration Center, Kobe University, 2.Nippon Marine Enterprises, Ltd., 3.Department of Planetology, Graduate School of Science, Kobe University, 4.Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamincs, 5.Department of Planetology, Faculty of Science, Kobe University, 6.Japan, Oil, Gas and Metals National Corporation)

*Koji Kiyosugi¹, Yoshiyuki Tatsumi¹, Keiko Suzuki-Kamata¹, Katsuya Kaneko², Reina NAKAOKA¹, Yuzuru Yamamoto², Takeshi Hanyu³, Satoshi Shimizu¹, Nobukazu Seama², Tetsuo Matsuno¹, Ryohei Kikuchi², Hiroto Yamaguchi² (1.Kobe Ocean-Bottom Exploration Center, Kobe University, 2.Department of Planetology, Graduate School of Science, Kobe University, 3.Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics)

*Tetsuya Sakuyama¹, Yuma Hayashi¹, Kenji Shimizu², Takayuki Ushikubo², Takeshi Hanyu³, Jun-Ichi Kimura³, Wei Tian⁴ (1.Faculty of Science, Osaka City University, 2.Kochi Institute for Core Sample Research, JAMSTEC, 3.JAMSTEC, Yokosuka, 4.Peking University)

*Naoto Kimura^1,2, Yuji Ichiyama³, Takashi Miyazaki², Bogdan S. Vaglarov², Qing Chang², Takeshi Hanyu², Jun-Ichi Kimura² (1.Graduate School of Science and Engineering, Chiba University, 2.Japan Agency for Marine–Earth Science and Technology, 3.Graduate School of Science, Chiba University)

*Yasuhiro Hirai^1,2, Yoshihiko Tamura², Kaj Hoernle³, Reinhard Werner³, Folkmar Hauff³, Christian Timm⁴, Bogdan Vaglarov², Qing Chang², Takashi Miyazaki², Jun-Ichi Kimura², Takeshi Hanyu² (1.Graduate School of Natural Science and Technology, Kanazawa University, Japan, 2.Research Institute for Marine Geodynamics (IMG), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa, Japan, 3.GEOMAR Helmholtz Centre for Ocean Research, Kiel, Germany, 4.GNS Science, Lower Hutt, New Zealand)

*Takashi Sano¹, Maria Luisa Tejada², Clive R. Neal³, Millard Coffin⁴, Masao Nakanishi⁵, Peter J. Michael⁶, Jörg Geldmacher⁷, Takeshi Hanyu², Seiichi Miura², Christian Timm⁸, Anthony A. P. Koppers⁹, Daisuke Suetsugu², Takashi Tonegawa², Akira Ishikawa¹⁰, Kenji Shimizu², Paterno Castillo¹¹ (1.National Museum of Nature and Science, 2.Japan Agency for Marine-Earth Science and Technology, 3.University of Notre Dame, USA, 4.University of Tasmania, Australia, 5.Chiba University, 6.The University of Tulsa, USA, 7.GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany, 8.GNS Science, New Zealand, 9.Oregon State University, USA, 10.Tokyo Institute of Technology, 11.Scripps Institution of Oceanography, UCSD, USA)