1. Key Laboratory of Geo‐detection (China University of Geosciences, Beijing), Ministry of Education Beijing China
2. School of Geophysics and Information TechnologyChina University of Geosciences Beijing China
3. Oil and Gas SurveyChina Geological Survey Beijing China
4. State Key Laboratory of Continental Tectonics and Dynamics, Institute of GeologyCAGS Beijing China
5. Qinghai No. 105 Coal Geological Exploration Team Xining China