1. College of Earth Science, Chengdu University of Technology, Chengdu 610059, China
2. College of Geophysical, Chengdu University of Technology, Chengdu 610059, China
3. Geological Resources and Geological Engineering Postdoctoral Workstation, Chengdu University of Technology, Chengdu 610059, China
4. The 7th Geological Team of the Bureau of Geological and Mineral Resources of Sichuan, Leshan 614000, China