*Hiroyuki Takata¹, Boo-Keun Khim², Kiseong Hyeong³, Inha Seo⁴, Youngsook Huh⁵, Hirofumi Asahi⁶, Jongmin Lee⁷, Koji Seto⁸ (1.Institute of Geologic Hazard and Industrial Resources, 2.Department of Oceanography, Pusan National University, 3.Global Ocean Research Center, Korean Institute of Ocean Science and Technology, 4.Department of Earth and Environmental Sciences, Jeonbuk National University, 5.School of Earth and Environmental Sciences, Seoul National University, 6.Center for Advanced Marine Core Research, Kochi University, 7.Deep-sea Mineral Resources Research Center, Korea Institute of Ocean Science and Technology, 8.Estuary Research Center, Shimane University)

*Hitoshi Hasegawa¹, Hiroki Momose¹, Hirofumi Asahi¹, Ryusei Kuma², Jessica WHITESIDE³ (1.Kochi Univ., 2.Nagoya Univ., 3.Southampton Univ.)

*Ono Iroha¹, Hitoshi Hasegawa¹, Hirofumi Asahi¹, Nagayoshi Katsuta², Masafumi MURAYAMA¹, Ichinnorov Niiden³ (1.Kochi Univ., 2.Gifu Univ., 3.Mongolian Academy of Sciences)