*Yurika Ujiie¹, Yuta Matsubara², Takayuki Ushikubo³, Akihiro Tame⁴, Yoshiyuki Ishitani³ (1.Center for Advanced Marine Core Research, Kochi University, 2.Faculty of Agriculture and Marine Sciences, Kochi University, 3.Institute for Extra-Cutting-Edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 4.Department of Marine and Earth Sciences, Marine Works Japan Ltd.)

*Tomoaki Morishita¹, Muhamad Asyraf Aminuddin¹, Takayuki Ushikubo², Kenji Shimizu², Ryoko Senda³, Masako Yoshikawa⁴, Keita Itano⁵, Akihiro Tamura¹ (1.Kanazawa University, 2.Kochi Core Center, JAMSTEC, 3.Kyushu University, 4.Hiroshima University, 5.Akita University)

*Takeshi Kuritani¹, Kenji Shimizu², Takayuki Ushikubo², Qun-ke Xia³, Jia Liu³, Mitsuhiro Nakagawa¹, Hajime Taniuchi^4,1, Eiichi Sato⁵, Nobuo Doi⁶ (1.Hokkaido University, 2.JAMSTEC, 3.Zhejiang University, 4.Shizuoka University, 5.Hokkaido University of Education, 6.Iwate University)

*Takumi Miyahara ¹, Takayuki Ushikubo², Arito Sakaguchi¹ (1.Yamaguchi university , 2.Kochi institute, JAMSTEC)

*Tsuyoshi Komiya¹, Kota Namba¹, Yusuke Sawaki¹, Takafumi Hirata², Takayuki Ushikubo³, Kenji Shimizu³ (1.Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo, 2.Geochemical Research Center, The University of Tokyo, 3.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)

*Fumihiro Matsuura^1,2, Yusuke Sawaki³, Tsuyoshi Komiya³, Takayuki Ushikubo⁴, Kenji Shimizu⁴, Yuichiro Ueno^2,4 (1.Nanjing University, 2.Tokyo Institute of Technology, 3.The University of Tokyo, 4.JAMSTEC)

Maximilien Bole^1,4,5, *Masayuki Ikeda¹, Takayuki Ushikubo², Rie Hori, S.³, Peter Baumgartner⁵, Yuki Nakai⁴ (1.University of Tokyo, 2.Kochi University, 3.Ehime University, 4.Shizuoka University, 5.Lausanne University)