2:45 PM - 3:00 PM
*Takehi ISSE1, Hajime SHIOBARA1, Hiroko SUGIOKA2, Aki ITO2, Akiko TAKEO1, Hisashi UTADA1, Hitoshi KAWAKATSU1, Takashi TONEGAWA2, Satoru TANAKA2 (1.ERI, Univ. of Tokyo, 2.Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology)