1. Ph.D. Candidate, School of Earth Sciences and Engineering, Nanjing Univ., Nanjing 210046, China.
2. Professor, Dept. of Geological Engineering, Chang’an Univ., Xi’an 710054, China; Key Laboratory of Earth Fissures Geological Disaster, Ministry of Natural Resources, Nanjing 210049, China; Key Laboratory of Western China’s Mineral Resource and Geological Engineering, Ministry of Education, Xi’an 710054, China (corresponding author).
3. Professor, School of Earth Sciences and Engineering, Nanjing Univ., Nanjing 210046, China.