*Hiroko Makita^1,2, Sakiko Kikuchi¹, Satoshi Mitsunobu³, Emiko Tanaka^2,1, Yoshihiro Takaki¹, Toshiro Yamanaka⁴, Tomohiro Toki⁵, Takuroh Noguchi⁶, Kentaro Nakamura⁷, Mariko Abe¹, Miho Hirai¹, Masahiro Yamamoto¹, Katsuyuki Uematsu⁸, Junichi Miyazaki¹, Takuro Nunoura¹, Yoshio Takahashi⁷, Ken Takai¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kanagawa Institute of Technology, 3.Ehime University, 4.Tokyo University of Marine Science and Technology, 5.University of the Ryukyus, 6.Kochi University, 7.The University of Tokyo, 8.Marine Works Japan Ltd)

*Hiroko Makita^1,2, Sakiko Kikuchi¹, Satoshi Mitsunobu³, Emiko Tanaka^2,1, Yoshihiro Takaki¹, Toshiro Yamanaka⁴, Tomohiro Toki⁵, Takuroh Noguchi⁶, Kentaro Nakamura⁷, Mariko Abe¹, Miho Hirai¹, Masahiro Yamamoto¹, Katsuyuki Uematsu⁸, Junichi Miyazaki¹, Takuro Nunoura¹, Yoshio Takahashi⁷, Ken Takai¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kanagawa Institute of Technology, 3.Ehime University, 4.Tokyo University of Marine Science and Technology, 5.University of the Ryukyus, 6.Kochi University, 7.The University of Tokyo, 8.Marine Works Japan Ltd)

*Yasuhiro Kato^1,2,3, Kentaro Nakamura¹, Koichiro Fujinaga^2,1, Kazutaka Yasukawa^1,2, Yutaro Takaya^4,1, Junichiro Ohta^3,1, Erika Tanaka¹, Kazuhide Mimura¹, Koichi Iijima^3,1, Shiki Machida^3,1, Tatsuo Nozaki^3,1,5, Jun-Ichi Kimura³, Hikaru Iwamori^3,6 (1.School of Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC, 4.School of Creative Science and Engineering, Waseda University, 5.Graduate School of Science, Kobe University, 6.School of Science, Tokyo Institute of Technology)

*Koichiro Fujinaga^1,2, Kazutaka Yasukawa^2,1, Tatsuo Nozaki^3,2,4, Shiki Machida^3,2, Koichi Iijima^3,2, Hitomi Tateno², Takehiro Kawasaki², Ayu Takahashi³, Hiroshi Amakawa³, Junji Torimoto³, Yusuke Fukami³, Katsuhiko Suzuki³, Kentaro Nakamura², Yasuhiro Kato^2,1,3, MR15-02 cruise members (1.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2.School of Engineering, The University of Tokyo, 3.JAMSTEC, 4.Graduate School of Science, Kobe University)

*Erika Tanaka¹, Kazutaka Yasukawa^1,2, Kentaro Nakamura¹, Takashi Miyazaki³, Bogdan S Vaglarov³, Koichiro Fujinaga^2,1, Hikaru Iwamori^3,4, Yasuhiro Kato^5,1,2,3 (1.Sys. Innovation, Univ. of Tokyo, 2.Chiba Institute of Technology, 3.JAMSTEC, 4.Dept. of Earth and Planetary Sciences, TITECH, 5.FRCER, Univ. of Tokyo)

*Kazuhide Mimura¹, Katsushi Yamamoto¹, Kentaro Nakamura¹, Kazutaka Yasukawa^1,2, Junichiro Ohta^3,1, Koichiro Fujinaga^2,1, Shiki Machida^3,1, Yasuhiro Kato^1,2,3 (1.School of Engineering, the University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

*Kentaro Nakamura¹, Siyang Li¹, Kazutaka Yasukawa^1,2, Kazuhide Mimura¹, Koichiro Fujinaga^2,1, Junichiro Ohta^3,1, Shiki Machida^3,1, Yasuhiro Kato^1,2,3 (1.School of Engineering, University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

*Kazutaka Yasukawa^1,2, Kentaro Nakamura¹, Koichiro Fujinaga², Yasuhiro Kato^1,2,3, Minoru Ikehara⁴ (1.School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.JAMSTEC, 4.Center for Advanced Marine Core Research, Kochi University)

*Masakazu Fujii¹, Kyoko Okino², Hiroshi Sato³, Taichi Sato⁴, Kentaro Nakamura⁵, Toshitsugu Yamazaki² (1.National Institute of Polar Research / SOKENDAI, 2.AORI, UTokyo, 3.Senshu Univ., 4.AIST, 5.UTokyo)

*Katsushi Yamamoto¹, Kazuhide Mimura¹, Kentaro Nakamura¹, Kazutaka Yasukawa^1,2, Junichiro Ohta^3,1, Koichiro Fujinaga^2,1, Shiki Machida^3,1, Yasuhiro Kato^1,2,3 (1.Department of Systems Innovation, School of Engineering, the University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

*Masakazu Fujii¹, Kyoko Okino², Hiroshi Sato³, Taichi Sato⁴, Kentaro Nakamura⁵, Toshitsugu Yamazaki² (1.National Institute of Polar Research / SOKENDAI, 2.AORI, UTokyo, 3.Senshu Univ., 4.AIST, 5.UTokyo)

*Katsushi Yamamoto¹, Kazuhide Mimura¹, Kentaro Nakamura¹, Kazutaka Yasukawa^1,2, Junichiro Ohta^3,1, Koichiro Fujinaga^2,1, Shiki Machida^3,1, Yasuhiro Kato^1,2,3 (1.Department of Systems Innovation, School of Engineering, the University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

*Shumpei Murakami¹, Koichiro Fujinaga^2,1, Kazutaka Yasukawa^1,2, Kentaro Nakamura¹, Kyohei Kurokawa³, Hikaru Iwamori^4,5, Kazuya Nagaishi⁶, Tsuyoshi Ishikawa⁴, Yasuhiro Kato^1,2,4,7 (1.Department of Systems innovation, School of Engineering the University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Mitsui Kushikino Mining Co.,Ltd., 4.JAMSTEC, 5.TITECH, 6.Marin Works Japan Ltd., 7.FRCER, Univ. of Tokyo )