12:00 〜 12:15
*Harutaka Sakai1、Saori Hirabayashi1、Toru Nakajima1、Hideki Iwano2、Tohru Danhara2 (1.Department of Geology and Mineralogy Division of Earth and Planetary Sciences, Graduate School of Science Kyoto University、2.Kyoto Fission-Track Co. Ltd.)