9:15 AM - 9:30 AM
*Ryosuke Sakurai1, Michihiko Nakamura2, Satoshi Okumura2, Mayumi Mujin2, Takayuki Nakatani2 (1.Division of Earth and Planetary Materials Science, Faculty of Science, Tohoku University, 2.Division of Earth and Planetary Materials Science, Department of Earth Science, Graduate School of Science, Tohoku University)