2:30 PM - 2:45 PM
*Youngji HA1,2, Yong-Sun SONG1, Kye-Hun Park1, Tae-Seob Kang1, Keewook Yi3 (1.Department of Earth Environmental Sciences, Pukyong National University, Busan 608-737, Korea, 2.Department of Geology, Niigata University, Niigata 950-2181, Japan, 3.Division of Earth and Environmental Science, Korea Basic Science Insititute, Ochang 363-883, Korea)