*TOMY ALVIN RIVAI1, Kenzo Sanematsu1, Kotaro Yonezu2, Syafrizal Syafrizal3 (1.Geological Survey of Japan, AIST, 2.Department of Earth Resources Engineering, Kyushu University, 3.Faculty of Mining and Petroleum Engineering, ITB)
convener:Yasushi Watanabe(Faculty of International Resource Sciences, Akita University), Kotaro Yonezu(Deaprtment of Earth Resources Engineering, Faculty of Engineering, Kyushu University)