5:15 PM - 6:30 PM
*Masaya Yasuhara1, Akihiko Inamura2, Noritoshi Morikawa2, Hiroshi Takahashi2, Masaaki Takahashi2, Michiko Ohwada2, Kohei Kazahaya2, Stephen Gingerich4, Yoichi Oyama3 (1.Rissho Univ., 2.Geological Survey of Japan, AIST, 3.Kushiro Board of Education, 4.USGS)