Minog Kim, Pukyong National University, Busan, Korea, Republic of (South), Tae-Seob Kang, Pukyong National University, Division of Earth Environmental System Science, Busan, Korea, Republic of (South), Junkee Rhie, Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea and Seongryong Kim, Chungnam National University, Department of Geological Sciences, Daejeon, South Korea