12:00 PM - 12:15 PM
*Akira Usui1, Hikari Hino2, Naotaka Tomioka1, Shingo Kato4, Michinari Sunamura3 (1.Marine Core Research Center, Kochi University, 2.Japan Oil, Gas and Metal Corporation, 3.Dept. Earth and Planetary Sciences, Univ. Tokyo, 4.Japan Marine and Earth Science and Technology Corporation)