*Tomoyo Okumura¹, Yoshihiro Takaki², Ken Takai², Miho Hirai², Takuro Nunoura², Yasuhiko Ohara³ (1.Center for Advanced Marine Core Research, Kochi University, 2.Japan Agency for Marine-Earth Science and Technology, 3.Hydrographic and Oceanographic Department of Japan)

*Hye-Eun Lee¹, Tomoyo Okumura², Masahiro Yamamoto³, Ji-Eun Lee¹, Hideshi Ooka¹, Akira Yamaguchi⁴, Seok Daniel Namgung⁵, Ki Tae Nam⁵, Shawn E McGlynn⁶, Ryuhei Nakamura^1,6 (1.RIKEN, Center for Sustainable Resource Science, 2.Kochi University, 3.Japan Agency for Marine-Earth Science and Technology, 4.Department of Materials Science and Engineering, Tokyo Institute of Technology, 5.Department of Materials Science and Engineering, Seoul National University, 6.Earth-Life Science Institute, Tokyo Institute of Technology)

*Nanako Koma¹, Hitoshi Hasegawa¹, Akira Usui², Hirokuni Oda⁵, Takashi Ito⁴, Yoshiro Nishio³, Go-Ichiro Uramoto², Takuya Matsuzaki², Tomoyo Okumura² (1.Faculty of science and Technology, Kochi University, 2.Center for Advanced Marine Core Research, Kochi University, 3.Research and Education Faculty, Kochi University, 4.Faculty of Education, Ibaraki Universit, 5.Institute of Geology and Geoinformation, Geological Survey of Japan, AIST)