1. Department of Geography, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 210646, Mongolia
2. Department of Geology and Geophysics, School of Arts and Sciences, National University of Mongolia, Ulaanbaatar 210646, Mongolia
3. Center for Global Tectonics, School of Earth Sciences and State Key Laboratory for Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, China
4. Department of Geography, School of Mathematics and Natural Sciences, Mongolian National University of Education, Ulaanbaatar, Mongolia