1. Civil-Military Integration Center, China Geological Survey, Chengdu, Sichuan, China
2. School of Geophysics and Information Technology, China University of Geosciences, Beijing, China
3. Coal Geology Geophysical Exploration Surveying & Mapping Institute of Shanxi Province, Jinzhong, Shanxi, China
4. School of Mechanical Engineering, Jiangsu University of Technology, Changzhou, Jiangsu, China
5. College of Earth Sciences, Guilin University of Technology, Guilin, Guangxi, China
6. School of Geography, Beijing Normal University, Beijing, China
7. China Railway Eryuan Engineering Group Co., Ltd, Chengdu, Sichuan, China