11:00 AM - 11:15 AM
*shivaji saha1, Toru Takeshita1, Takeshi Imayama2, Hari Bahadur Srivastava3 (1.Department of Natural History Sciences, Graduate School of Science, Hokkaido University, 2.Research Institute of Natural Science, Okayama University of Science, Okayama, Japan, 3.Department of Geology, Institute of Science, Banaras Hindu University, Varanasi, India)