*OTGONBAYAR DANDAR1, Atsushi Okamoto1, Takayoshi Nagaya2, Masaoki Uno1, Noriyoshi Tsuchiya1 (1.Graduate School of Environmental Studies, Tohoku University, 2.Graduate School of Science, University of Tokyo)
convener:Yoshihiro Nakamura(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Yumiko Harigane(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST))