4:00 PM - 4:15 PM
*Shunta Ichimura1, Hideko Takayanagi2, Yasufumi Iryu2, Satoshi Takahashi1, Tatsuo Oji3 (1.Department of Earth and Environmental Sciences, Graduate school of environmental studies, Nagoya University, 2.Department of Earth Science, Graduate School of Science, Tohoku University, 3.Nagoya University Museum)