12:48 PM - 12:51 PM
*Kentaro KOINUMA1, Madhusoodhan SATISH-KUMAR2, Kaoru MISHIMA3, Yuichiro UENO3, Tomokazu HOKADA4 (1.Graduate School of Science and Technology, Niigata University, Niigata, Japan, 2.Department of Geology, Faculty of Science, Niigata University, Niigata, Japan, 3.Department of Earth & Planetary Sciences, Tokyo Institute of Technology, Tokyo, Japan, 4.National Institute of Polar Research, Tachikawa, Tokyo, Japan)