5:15 PM - 6:30 PM
*Ryoko Furukawa1, Toshiro Yamanaka1, hisashi Oiwane2, Masafumi MURAYAMA3, Hitoshi CHIBA4 (1.Graduate School of Natural Science and Technology, Okayama University, 2.Mishimamura Village, Kagoshima Prefecture, 3.Center for Advanced Marine Core Research, Kochi University, 4.Department of Earth Sciences, Okayama University)