9:30 AM - 9:45 AM
*Futoshi Nanayama1,6, Hiroshi Kurita2, Toru Yamasaki1, Jun Tajika3, Hideki Iwano4, Tohru Danhara4, Takafumi Hirata5 (1.Geological Survey of Japan, AIST, 2.Niigata Univ., 3.Docon Co. Ltd, 4.Kyoto Fission-Track Co. Ltd, 5.Tokyo Univ., 6.CWMD, Kumamoto Univ.)