11:15 AM - 11:30 AM
Laurette Piani1, *Shogo Tachibana1, Tetsuya Hama2, Iyo Sugawara1, Yasuhiro Oba2, Hidekazu Tanaka2, Yuki Kimura2, Akira Miyake3, Junya Matsuno3, Akira Tsuchiyama3, Hisayoshi Yurimoto1, Akira Kouchi2 (1.Department of Natural History Scieces, Hokkaido University, 2.Institute of Low Temperature Science, Hokkaido University, 3.Department of Geology and Mineralogy, Graduate School of Science, Kyoto University)