1. Exploration Geophysics and Mining Engineering Department, Korea Institute of Geoscience & Mineral Resources, 92 Gwahang-no, Yuseung-gu, Daejeon, 305-350, Korea.
2. Department of Energy Systems Engineering, Seoul National University, 599 Gwanangno, Seoul, 151-744, Korea.
3. Corresponding author.
4. Department of Geosystem Engineering, Kangwon National University, 192-1 Hyoja-Dong, Chuncheon, Gangwon-do, 200-701, Korea.
5. Human & Earth Inc., 513-22, Sangdaewon-dong, Jungwon-gu, Sungnam, Kyeonggi, 462-120, Korea.