1. State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences and Resources China University of Geosciences Beijing China
2. Key Laboratory of Eco‐Geochemistry, Ministry of Natural Resources of China, National Research Center for Geoanalysis Beijing China
3. Development and Research Centre of China Geological Survey Beijing China
4. Department of Geology Juniata College Huntingdon Pennsylvania USA
5. Geologic Survey Research Institute of Nonferrous Metal Bureau Changchun China
6. China Aero Geophysical Survey & Remote Sensing Center for Natural Resources, China Geological Survey Beijing China
7. China Geological Survey Beijing China