*Madhusoodhan SATISH-KUMAR1, Naho OTSUJI2, Atsushi KAMEI3, Eiichi TAKAZAWA1, Noriyoshi TSUCHIYA4, Geoffrey GRANTHAM5, Masahiro ISHIKAWA6, Tetsuo KAWAKAMI7, Yasuhito OSANAI8
(1.Department of Geology, Niigata University, 2-8050 Ikarashi, Nishi-ku, Niigata 950-2181, Japan, 2.Graduate School of Science and Technology, Niigata University, Japan, 3.Department of Geosciences, Shimane University, Matsue, 690-8504, Japan, 4.Department of Geoscience and Technology, Graduate School of Engineering, Tohoku University, Japan, 5.Council for Geoscience, P/Bag X112, Pretoria, South Africa, 6.Department of Geology and Mineralogy, Kyoto University, Japan, 7.Graduate School of Environment and Information Sciences, Yokahama National University, Japan, 8.Division of Earth Sciences, Faculty of Social and Cultural Studies, Kyushu University, Japan)