*Isao Motoyama1, Toshiaki Maruyama1, Akane Kasukawa1, Kenji M. Matsuzaki2, Tomohiro Nishimura3, Kazuhiko Sakurai3 (1.Department of Earth and Environmental Sciences, Yamagata University, 2.Department of Earth and Planetary Science, Graduate School of Science, the University of Tokyo, 3.Hobetsu Museum)
convener:Isao Motoyama(Department of Earth and Environmental Sciences, Yamagata University), Takao Ubukata(Division of Geology & Mineralogy, Department of Earth & Planetary Sciences, Kyoto University), Kazuyoshi Moriya(Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University), Chairperson:Kazuyoshi Moriya(Department of Earth Sciences, Faculty of Education and Integrated Arts and Sciences, Waseda University), Chairperson:Takao Ubukata(Division of Geology & Mineralogy, Department of Earth & Planetary Sciences, Kyoto University), Chairperson:Isao Motoyama(Department of Earth and Environmental Sciences, Yamagata University)