09:30 〜 09:45
*Madhusoodhan Satish-Kumar1、Kenji Horie2、Ian S. Williams3、Mami Takehara2、Tomokazu Hokada2、Naho Otsuji4 (1.Department of Geology, Faculty of Science, Niigata University、2.National Institute of Polar Research, Tachikawa, Tokyo 190-8518, Japan、3.Research School of Earth Sciences, Australian National University, Canberra, ACT 2601, Australia、4.JFE Techno-Research Corporation, Kawasaki, Japan)