9:00 AM - 9:15 AM
*Ken Yamaoka1, Tokiyuki Morohoshi2, Daisuke Sato1, Kazuto Mikuni1,3 (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 2.Department of Earth & Planetary Science, Graduate School of Science, The University of Tokyo, 3.Department of Earth and Planetary Sciences, Institute of Science Tokyo)