5:15 PM - 6:30 PM
*Yorinao Shitaoka1, Junji Yamamoto2, Masaya Miyoshi3, Naoya Obata4, Tsuneto Nagatomo5 (1.Department of Environment System, Faculty of Geo-environmental Science, Rissho University, 2.Hokkaido University, 3.University of Fukui, 4.Hiruzen Institute for Geology and Chronology Co., Ltd., 5.Nara University of Education)