11:45 AM - 12:00 PM
*Yuta SHIMOYAMA1, Hidenori TERASAKI1, Yusaku TAKUBO1, Satoru URAKAWA2, Souma KUWABARA1, Yoshinori KATAYAMA3 (1.Graduate School of Science, Osaka University, 2.Department of Earth Sciences, Okayama University, 3.Japan Atomic Energy Agency)