*Yohei Hamada¹, Wataru Tanikawa¹, Yuhji Yamamoto², Go-Ichiro Uramoto², Masafumi MURAYAMA², Takehiro Hirose¹, Osamu Tadai^1,3, Kouki Tanaka², Hiromasa Ozaki⁴, Minoru YONEDA⁴, Hidekazu Tokuyama² (1.Japan Agency for Marine-Earth Science and Technology Kochi Institute for Core Sample Research, 2.Kochi University, 3.Marine Works Japan Ltd., 4.Tokyo University)

*Weiren Lin¹, Osamu Tadai², Takehiro Hirose³, Wataru Tanikawa³, Xiaoqiu Yang⁴ (1.Graduate School of Engineering, Kyoto University, 2.Marin Works Japan LTD, 3.Kochi Institute for Core Sample research, Japan Agency for Marine-Earth Science and Technology, 4.South China Sea Institute of Oceanology, Chinese Academy of Sciences)

Kouku Inoue², *Wataru Tanikawa¹, Yoshitaka Hashimoto², Osamu Tadai⁴, Manami Kitamura⁵, Yohei Hamada¹, Takehiro Hirose¹, Weiren Lin³ (1.Japan Agency for Marine-Earth Science and Technology, Kochi Instutute for Core Sample Research, 2.Kochi University, 3.Kyoto University, 4.Marine Works Japan LTD., 5.AIST)