4:45 PM - 5:00 PM
*Masaaki Okuda1, Misao Hongo2, Masami Watanabe3, Manami Sugaya4, Yusuke Suganuma5, Makoto Okada6 (1.Natural History Museum and Institute, Chiba, 2.Alps Technical Research Laboratory, 3.Archaeological Research Consultant, Inc., 4.Giken Consul.,Ltd., 5.National Institute of Polar Research, 6.Department of Environmental Sciences, Ibaraki University)