10:00 AM - 10:15 AM
*Sota Ueno1, Yuta Ijichi2, Takehiro Hirayama1, Teruhiko Kashiwabara2, Akira Usui3, Akiko Yamaguchi1, Yoshio Takahashi1 (1.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology, 3.Marine Core Research Institute, Kochi University)