*Terumi Ejima1,2, Yoshiaki Kon2, Daisuke Araoka2, Shigenori Kawano3, Yutaka Takahashi2 (1.Shinshu University, 2.Geological Survey of Japan, 3.Tochigi Prefectural Museum)
convener:Tsubasa Otake(Division of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University), Daisuke Araoka(Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology), Ryohei Takahashi(Graduate School of International Resource Sciences, Akita University), Tatsuo Nozaki(Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology), Chairperson:Tsubasa Otake(Faculty of Engineering, Hokkaido University), Daisuke Araoka