12:00 PM - 12:15 PM
Shingo Sugawara1, *Wataru Fujiya1, Noriyuki Kawasaki2, Naoya Sakamoto3, Takayuki Ushikubo4 (1.Ibaraki University, College of Science, 2.Department of Earth and Planetary Sciences, Graduate School of Science, Hokkaido University, 3.Creative Research Institution, Hokkaido University, 4.Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)