*Akira Usui1, Hikair Hino1, Suzushima Suzushima1, Naotaka Tomioka2, Teruhiko Kashiwabara2, Kyoko Yamaoka3, Michinari Sunamura4 (1.Marine Core Research Center, Kochi University, 2.Japan Agency of Earth and Marine Science a Technology, 3.Geological Survey of Japan, AIST, 4.Earth and Planetary Sciences, University of Tokyo)
convener:Akira Usui(Marine Core Research Center, Kochi University), Yoshio Takahashi(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Katsuhiko Suzuki(Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology), Takashi Ito(Faculty of Education, Ibaraki University)