*Keita SAITO¹, Ryuji TADA¹, Hongbo Zheng², Tomohisa IRINO³, Ke WANG³, Chao Luo⁴, Yuya TSUNAZAWA¹, Saiko SUGISAKI¹ (1.University of Tokyo, 2.Nanjing Normal University, 3.Hokkaido University, 4.Nanjing University)

*Ke WANG¹, Ryuji TADA², Tomohisa IRINO¹, Hongbo ZHENG³, Keita SAITO², Saiko SUGISAKI², Masao UCHIDA⁴ (1.Hokkaido University, 2.The University of Tokyo, 3.Nanjing Normal Univ., 4.National Institute for Environmental Studies)

*Saiko SUGISAKI¹, Jan-Pieter Buylaert², Andrew Murray³, Ryuji TADA¹, Hongbo Zheng⁴, Ke WANG⁵, Keita SAITO¹, Tomohisa IRINO⁵, Masao UCHIDA⁶ (1.University of Tokyo, 2.Aarhus University, 3.Technical University of Denmark, 4.Nanjing Normal University, 5.Hokkaido University, 6.National Institute for Environmental Studies)

*Takuya SAGAWA¹, Ryuji TADA², Ken IKEHARA³, Tomohisa IRINO⁴, Takuya ITAKI³, Saiko SUGISAKI², Yoshimi KUBOTA⁵, Akinori KARASUDA², Xuan Chuang⁶, Yoshitaka NAGAHASHI⁷, Yasufumi SATOGUCHI⁸, Takeshi NAKAGAWA⁹, Richard W. Murray¹⁰, Carlos A. Alvarez-Zarikian¹¹, 346, Scientists EXPEDITION¹¹ (1.Faculty of Sciences, Kyushu University, 2.Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo, 3.Institute of Geology and Geoinformation, National Institute of Advanced Industrial Science and Techn, 4.Faculty of Environmental Earth Science, Hokkaido University, 5.National Museum of Nature and Science, 6.School of Ocean and Earth Science, Univ. of Southampton, 7.Fukushima University, 8.Lake Biwa Museum, 9.Ritsumeikan University, 10.Earth & Environment, Boston University, USA, 11.Integrated Ocean Discovery Program, Texas A&M University)