*Toshiyuki Kurihara1, Urara Murakami2, Atsushi Matsuoka2 (1.Graduate School of Science and Technology, Niigata University, 2.Faculty of Science, Niigata University)
convener:Atsushi Matsuoka(Department of Geology, Faculty of Science, Niigata University), Toshiyuki Kurihara(Graduate School of Science and Technology, Niigata University), Tetsuji Onoue(Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University), XIN LI(State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences)