11:30 AM - 11:45 AM
*Yujiro Tamura1, Ryoichi Nakada2, Masahiko Sato3, Shinji Yamamoto4 (1.Graduate schoole of Environment and Information Sciences, Departmennt of Natural Environment, Yokohama National University, 2.Kochi Institute of Core Sample Reserch, Japan Agency for Marine-Earth Science and Technology, 3.Department of Earth and Planetary Science, The University of Tokyo, 4.Graduate schoole of Environment and Information Sciences, Yokohama National University)