11:45 AM - 12:00 PM
*Masaya YASUHARA1, Hidekazu SUZUKI2, Kazuyoshi ASAI3, Akihiko INAMURA1, Atsushi YAMAMOTO4, Noritoshi MORIKAWA1, Hiroshi TAKAHASHI1, Masaaki TAKAHASHI1, Kohei KAZAHAYA1, Koichi KITAOKA5 (1.Geological Survey of Japan, AIST, 2.Komazawa University, 3.Geo Science Laboratory, 4.Kinki University, 5.Okayama Univeristy of Science)