*Yoichi Usui¹, Toshitsugu Yamazaki², Junichiro Ohta^3,4,1, Honami Sato⁴, Akira Ishikawa⁵ (1.Japan Agency for Marine-Earth Science and Technology, 2.Atmosphere and Ocean Research Institute, The University of Tokyo, 3.FRCER, The University of Tokyo, 4.ORCeNG, Chiba Institute of Technology, 5.Department of Earth and Planetary Sciences, Tokyo Institute of Technology)

*Erika Tanaka¹, Kazutaka Yasukawa^2,1,3, Kentaro Nakamura¹, Junichiro Ohta^2,3, Tatsuo Nozaki^4,2,5,3, Yoichi Usui⁴, Koichiro Fujinaga^3,2, Koichi Iijima⁴, Yasuhiro Kato^2,1,3 (1.Department of Systems Innovation, School of Engineering, The University of Tokyo, 2.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 3.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 4.Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology, 5.Department of Planetology, Faculty of Science, Kobe University)

*Yasuhiro Kato^1,2, Kazutaka Yasukawa^1,2, Junichiro Ohta^1,2, Erika Tanaka¹, Kazuhide Mimura¹, Koichiro Fujinaga^2,1, Kentaro Nakamura¹ (1.Graduate School of Engineering, University of Tokyo, 2.ORCeNG, Chiba Institute of Technology)

*Kazutaka Yasukawa^1,2, Erika Tanaka¹, Takashi Miyazaki³, Bogdan Stefanov Vaglarov³, Qing Chang³, Junichiro Ohta^1,2, Kentaro Nakamura¹, Koichiro Fujinaga^2,1, Shiki Machida^2,1, Hikaru Iwamori^4,3,5, Yasuhiro Kato^1,2 (1.School of Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC, 4.Earthquake Research Institute, The Universityof Tokyo, 5.Department of Earth and Planetary Sciences, Tokyo Institute of Technology)

*Kazuhide Mimura¹, Shugo Minabe¹, Junichiro Ohta^1,2,3, Kentaro Nakamura¹, Kazutaka Yasukawa^1,2, Koichiro Fujinaga^2,1, Kazuhiro Takao¹, Yasuhiro Kato^1,2 (1.Department of Systems Innovation, School of Engineering, the University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

*Yasuhiro Kato^1,2, Kazutaka Yasukawa^1,2, Junichiro Ohta^1,2, Koichiro Fujinaga^2,1, Kentaro Nakamura¹ (1.Graduate school of Engineering, Univ. of Tokyo, 2.ORCeNG, Chiba Institute of Technology)

*Junichiro Ohta^1,2,3, Kazutaka Yasukawa^1,3,2, Tatsuo Nozaki^3,1,4,2, Yutaro Takaya^5,2,3, Kazuhide Mimura¹, Koichiro Fujinaga^2,1, Kentaro Nakamura¹, Yoichi Usui³, Jun-Ichi Kimura³, Qing Chang³, Yasuhiro Kato^1,2,3 (1.The University of Tokyo, 2.Chiba Institute of Technology, 3.Japan Agency for Marine-Earth Science and Technology, 4.Kobe University, 5.Waseda University)

*Yusuke Kuwahara¹, Kazutaka Yasukawa^2,1,3, Koichiro Fujinaga^3,2, Tatsuo Nozaki^4,2,5,3, Junichiro Ohta^2,3,6, Honami Sato^3,4, Jun-Ichi Kimura⁶, Kentaro Nakamura¹, Yasuhiro Kato^2,1,3,4 (1.Department of Systems Innovation, School of Engineering, The University of Tokyo, 2.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 3.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 4.Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology, 5.Department of Planetology, Graduate School of Science, Kobe University, 6.Volcanos and Earth’s Interior Research Center, Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology)

Koshiro Sato¹, *Kazutaka Yasukawa^1,2, Junichiro Ohta^1,2, Keishiro Azami¹, Kentaro Nakamura¹, Koichiro Fujinaga^2,1, Minoru Ikehara³, Yasuhiro Kato^1,2 (1.School of Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.Center for Advanced Marine Core Research, Kochi University)