1. Key Laboratory of Deep‐Earth Dynamics of the Ministry of Natural Resources, Institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China
2. School of Earth and Space Sciences Peking University Beijing 100871 China
3. Comprehensive Exploration Technology Center Shandong Coal Field Geological Survey and Research Institute Jinan 250104 China
4. Tianjin Center China Geological Survey Tianjin 300170 China