5:15 PM - 6:30 PM
*Momoko Shirakawa1, Madhusoodhan Satish-Kumar2, Sanjeewa P.K. Malaviarachchi3 (1.Graduate School of Science and Technology, Niigata University, Japan, 2.Department of Geology, Faculty of Science, Niigata University, Japan, 3.Department of Geology, Faculty of Science, University of Peradeniya, Peradeniya, Sri Lanka)