*Glen Snyder^1,2, Naoto Takahata², Stephen Alan Bowden³, Naizhong Zhang⁴, Renat B. Shakirov⁵, Hitoshi Tomaru⁶, Fumito Shiraishi⁷, Yuji Sano⁸, Ryo Matsumoto¹ (1.Gas Hydrate Research Lab, Meiji Univeristy, 2.Atmosphere and Ocean Research Institute, University of Tokyo, 3.University of Aberdeen, 4.Earth-Life Science Institute, Tokyo Institute of Technology, 5.Pacific Oceanological Institute, 6.Chiba University, 7.Hiroshima University, 8.Kochi University)

Ogheneworo Offeh², Colin Taylor², Simone Fyfe², Akira Ijiri³, Jun-ichiro Ishibashi¹, Yuzuru Yamamoto^4,1, *Stephen Alan Bowden^1,2 (1.Kobe Ocean Bottom Exploration Centre, Kobe University, Kobe, 2.School of Geosciences, University of Aberdeen, Aberdeen, U.K., 3.Graduate School of Maritime Sciences, Kobe University, 4.Department of Planetology, Graduate School of Science, Kobe University)

*Nana Kamiya¹, Masataka Kinoshita², Weiren Lin³, Takehiro Hirose⁴, Yuzuru Yamamoto⁵, Stephen Alan Bowden⁶, Man-Yin Tsang⁵, Satoshi Tonai⁷, Expedition 370 Scientists Group⁸ (1.Graduate School of Engineering, Kyoto University, 2.The University of Tokyo, 3.Kyoto University, 4.JAMSTEC, 5.Kobe University, 6.University of Aberdeen, 7.Kochi University, 8.IODP)