5:15 PM - 7:15 PM
*Yoshiyuki O. Takahashi1, Yoshi-Yuki Hayashi1, George HASHIMOTO2, Kiyoshi Kuramoto3, Masaki Ishiwatari3, Hiroki Kashimura1 (1.Graduate School of Science, Kobe University, 2.Department of Earth Sciences, Okayama University, 3.Department of Cosmosciences, Hokkaido University)