*Hanaya Okuda¹, Yuya Akamatsu², Manami Kitamura³, Yoshitaka Nakano⁴, Michiyo Sawai⁴ (1.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, 2.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology, 3.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 4.Department of Earth Sciences, Chiba University)

*Yoshida Takumi¹, Naoya Okada¹, Tomoyuki Ohtani² (1.Gifu University Graduate School of Natural Science Technology, 2.Faculty of Engineering, Gifu University)

Shunsuke Aoki², *Tomoyuki Ohtani¹, Naoya Okada², Takumi Yoshida² (1.Department of Civil Engineering, Gifu University, 2.Graduate School of Natural Science and Technology, Gifu University)

*Kazumasa Tanimoto, Ikuo Katayama¹, Yohei Hamada² (1.Hiroshima Univ., 2.Japan Agency for Marine-Earth Science and Technology Kochi Institute for Core Sample Research )

*Go-Ichiro Uramoto¹, Shohei Yamashita², Yasuo Takeichi³, Yoshio Takahashi⁴ (1.Kochi University, 2.KEK, 3.Osaka University, 4.The University of Tokyo)

*Arisa Seki¹, Ryuji Tada², Tomohisa Irino³, Kenji Matsuzaki⁴, Jumpei Yoshioka⁴ (1.Faculty of Science, Shinshu University, 2.Institute for Geo-Cosmology, Chiba Institute of Technology, 3.Faculty of Environmental Earth Science, Hokkaido University, 4.Atmosphere and Ocean Research Institute, The University of Tokyo)

*Yohei Hamada¹, Nana Kamiya², Keisuke Nakamoto³, Hanaya Okuda¹, Yoshitaka Hashimoto⁴ (1.Japan Agency for Marine-Earth Science and Technology Kochi Institute for Core Sample Research, 2.Kyoto University, 3.Hokkaido University, 4.Kochi University)

*Xunhui XU¹, Rachel FLECKER², Emmanuelle DUCASSOU³, Trevor WILLIAMS⁴, Fadl RAAD⁵, Jonathan STINE⁶, Manuel TEIXEIRA⁷, Shaoru YIN⁸, Sarah FEAKINS⁹, Clara BLÄTTLER¹⁰, Kosuke EGAWA¹¹, Erika TANAKA¹², Weiren LIN¹, the IODP Expedition 401 Scientists (1.Kyoto University, 2.University of Bristol, 3.University of Bordeaux, 4.Texas A&M University, 5.Università di Corsica Pasquale Paoli, 6.University of Minnesota-Twin Cities, 7.University of Lisbon, 8.Second Institute of Oceanography, Ministry of Natural Resources, 9.University of Southern California, 10.University of Chicago, 11.Kyushu University, 12.Kochi University)

Tsumugi Ozawa^1,6, *Masao IWAI², Ken Ikehara³, Toshiya Kanamatsu⁴, Juichiro Ashi⁵, MIho Asada³ (1.Graduate school, Kochi University, 2.Marine Core Research Institute, Kochi University, 3.AIST, 4.JAMSTEC, 5.AORI, University of Tokyo, 6.Marine Works Japan LTD.)

*Keisuke Ariyoshi¹, Eiichiro Araki¹, Hiroyuki Matsumoto¹, Yuya Machida¹, Shuhei Tsuji¹, Takashi Yokobiki¹, Shuhei Nishida¹, Shuichiro Yada¹, Tomokazu Saruhashi¹, Kan Aoike¹, Yasuyuki Nakamura¹, Gou Fujie¹, Takeshi Iinuma¹, Takane Hori¹, Nobuhisa Eguchi¹, Shuichi Kodaira¹ (1.Japan Agency for Marine-Earth Science and Technology)

*Toshiya Kanamatsu¹, Yuhji Yamamoto², KanHsi Hsiung¹, Yonghong Wang⁴, Ken Ikehara³, Michael Strasser⁵ (1.Japan Agency for Marine-Earth Science and Technology, 2.Kochi University, 3.National Institute of Advanced Industrial Science and Technology, 4.Ocean University of China, 5.University of Innsbruck)