11:45 〜 12:00
*Madhusoodhan Satish-Kumar1、Fumiko Higashino2、Tetsuo Kawakami2、Tomokazu Hokada3 (1.Department of Geology, Faculty of Science, Niigata University、2.Department of Geology and Mineralogy, Graduate School of Science, Kyoto University, Japan、3.National Institute of Polar Research, Tachikawa, Japan)