*Daisuke Kuwano1, Yoshimi Kubota2, Kanako Mantoku2, Koji Kameo3 (1.Division of Earth and Environmental Sciences, Graduate School of Science and Engineering, Chiba University, 2.National Museum of Nature and Science, 3.Department of Earth Sciences, faculty of Science, Chiba University)
convener:Masanobu Yamamoto(Faculty of Environmental Earth Science, Hokkaido University), Ryuji Tada(Department of Earth and Planetary Science, Graduate School of Science, The Univeristy of Tokyo), Chairperson:Masanobu Yamamoto(Hokkaido University), Tomohisa Irino, Yoshimi Kubota(National Science Museum), Ryuji Tada(The University of Tokyo)