*Hironobu Harada1, Tatsuki Tsujimori1, Keitaro Kunugiza2, Katsuyuki Yamashita3, Hideko Takayanagi1, Yasufumi Iryu1 (1.Tohoku Univesity, 2.Toyama University, 3.Okayama University)
convener:Koji Seike(Geological Survey of Japan, AIST), Masayuki Ikeda(University of Tokyo), Hideko Takayanagi(Institute of Geology and Paleontology, Graduate School of Science, Tohoku University), Hajime Naruse(Department of Geology and Mineralogy, Graduate School of Science, Kyoto University)