*Tsuyoshi Toyoshima¹, Yasuhito Osanai², Masaaki Owada³, Toshiaki Tsunogae⁴, Tomokazu Hokada⁵, Norio Shigematsu⁶ (1.Department of Geology, Faculty of Science, Niigata University, 2.Division of Evolution of Earth Environments, Kyushu University, 3.Department of Earth Sciences, Yamaguchi University, 4.Faculty of Life and Environmental Sciences, 5.National Institute of Polar Research, 6.National Institute of Advanced Industrial Science and Technology)

*Nobuhiko Nakano¹, Yasuhito Osanai¹, Masaaki Owada², Madhusoodhan Satish-Kumar³, Tatsuro Adachi^4,1, Sereenen Jargalan⁵, Aya Yoshimoto¹, Kundyz Syeryekhan⁵, Chimedtseie Boldbaatar⁶, Nomintsetseg Puntsagdamba⁷, Dolzodmaa Boldbaatar⁸ (1.Division of Earth Sciences, Faculty of Social and Cultutal Studies, Kyushu University, 2.Department of Earth Sciences, Yamaguchi University, 3.Department of Geology, Niigata University, 4.Kyushu University Advanced Asian Archaeological Research Center, 5.Department of Mineral Exploration, Mongolian University of Science and Technology, 6.Mongolian Exploration Partners, LLC, 7.Graduate School of Social and Cultural Studies, Kyushu University, 8.Graduate School of Integrated Sciences for Global Society, Kyushu University)

*Masaaki Owada¹, Yasuhito Osanai², Nobuhiko Nakano², Tatsuro Adachi², Ippei Kitano², Tri Van Tran³, Hire Kigali⁴ (1.Graduate School of Science and Engineering, Yamaguchi University, 2.Department of Earth Sciences, Kyushu University, 3.General Department of Geology and Minerals of Vietnam, 4.raduate School of Science and Technology, Niigata University)