5:15 PM - 6:45 PM
*Nariaki Nishiyama1, Makoto Kawamura1, Tetsuya Komatsu1, Hua Jia2, Yukiko Koizumi2, Toshimichi Nakanishi3, Umeda Koji4 (1.Tono Geoscience Center, Japan Atomic Energy Agency, 2.Mitsubishi Materials Techno Co., 3.Museum of Natural and Environmental History, Shizuoka, 4.Graduate School of Science and Technology, Hirosaki University)