*Shoichi Kiyokawa1, Takashi Ito2, Minoru Ikehara3, Kosei E. Yamaguchi4, Kohei Ishikawa1, Mami Takehara5, Kenji Horie5 (1.Department of Earth and Planetary Sciences Faculty of sciences, Kyuushu University, 2.Faculty of Education, Ibaraki University , 3.Center for Advanced Marine Core Research, Kochi University, 4. Toho University and NASA Astrobiology Institute, 5.National Institute of Polar Research)
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)