*Kanami Kamide¹, Hikaru Yabuta¹, Minoru Ikehara² (1.Hiroshima University, 2.Kochi University)

*Kento Motomura¹, Shoichi Kiyokawa¹, Minoru Ikehara², Takashi Sano³, Kentaro Tanaka⁴, Tsubasa Miki⁴, Yuji Sano⁴ (1.Kyushu Univ., 2.Kochi Univ., 3.National Museum of Nature and Science, 4.Univ. of Tokyo)

*Go-Ichiro Uramoto¹, Hiroki Matsui¹, Kazuno Arai¹, Naohisa Nishida², Hirofumi Asahi¹, Yusuke Kubo³, Satoshi Tonai¹, Wataru Tanikawa³, Yurika Ujiie¹, Yuhji Yamamoto¹, Minoru Ikehara¹ (1.Kochi University, 2.Tokyo Gakugei University, 3.Japan Agency for Marine-Earth Scienct and Technology (JAMSTEC))

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)

*Shoichi Kiyokawa¹, Takashi Ito², Minoru Ikehara³, Kosei E. Yamaguchi⁴, Kohei Ishikawa¹, Mami Takehara⁵, Kenji Horie⁵ (1.Department of Earth and Planetary Sciences Faculty of sciences, Kyuushu University, 2.Faculty of Education, Ibaraki University , 3.Center for Advanced Marine Core Research, Kochi University, 4. Toho University and NASA Astrobiology Institute, 5.National Institute of Polar Research)

*Minoru Ikehara¹, Hiroshi Sato², Masakazu Fujii³, Keiko Takehara⁴ (1.Center for Advanced Marine Core Research, Kochi University, 2.Senshu University, 3.National Institute of Polar Research, 4.Soka University)

*Hiroshi Sato¹, Masakazu Fujii², Minoru Ikehara³, Keiko Takehara⁴ (1.School of Business Administration, Senshu University, 2.National Institute of Polar Research and SOKENDAI, 3.Center for Advanced Marine Core Research, Kochi University, 4.SOKA University)

*Mutsumi Iizuka¹, Osamu Seki¹, Keiji Horikawa³, Tina van de Flierdt², Tomohisa Irino¹, Masanobu Yamamoto¹, Takuya Itaki⁴, Saiko Sugisaki⁴, Minoru Ikehara⁵, Yusuke Suganuma⁶ (1.Hokkaido university, 2.Imperial College London, 3.University of Toyama, 4.Geological Survey of Japan, 5.Center for Advanced Marine Core Research, Kochi University, 6.National Institute of Polar Research)

*Masakazu Fujii^1,2, Minoru Ikehara³, Hiroshi Sato⁴, Keiko Takehara⁵, Takuya Itaki⁶, Yoshifumi Nogi^1,2, Yasuyuki Nakamura⁷ (1.National Institute of Polar Research, 2.The Graduate University for Advanced Studies, SOKENDAI , 3.Center for Advanced Marine Core Research, Kochi University, 4.Senshu University, 5.SOKA University, 6.Geological Survey of Japan, AIST, 7.Japan Agency for Marine Earth Science and Technology)

*Hiroaki Koge¹, Masakazu Fujii², Jinyu ZHOU³, Kyoko Okino³, Minoru Ikehara⁴, Asuka Yamaguchi³, Taichi Sato¹ (1.GSJ, AIST, 2.NIPR, 3.AORI, UTokyo, 4.Kochi University)

*Hiroki Matsui¹, Minoru Ikehara¹, Yusuke Suganuma^2,3, Osamu Seki⁴, Jun'ichi Okuno^2,3, Ikumi Oyabu², Kenji Kawamura^2,3 (1.Center for Advanced Marine Core Research, Kochi University, 2.National Institute of Polar Research, 3.Department of Polar Science, School of Multidisciplinary Sciences, The Graduate University for Advanced Studies (SOKENDAI), 4.Institute of Low Temperature Science, Hokkaido University)

*Moei Yano¹, Kazutaka Yasukawa^1,2, Kentaro Nakamura¹, Minoru Ikehara³, Yasuhiro Kato^1,2 (1.School of Engineering, The University of Tokyo, 2.Chiba Institute of Technology, 3.Kochi University)