[1] State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan,430074, China
[2] School of Earth Resources, China University of Geosciences, Wuhan,430074, China
[3] National Engineering Research Center of Geographic Information System, China University of Geosciences, Wuhan,430074, China
[4] School of Geography and Information Engineering, China University of Geosciences, Wuhan,430074, China
[5] School of Mathematical Sciences, Dalian University of Technology, Dalian,116024, China