1. Institute of Resource and Environmental Engineering, Hebei GEO University, Shijiazhuang 050031, China
2. Hebei Key Laboratory of Strategic Critical Mineral Resources, Hebei GEO University, Shijiazhuang 050031, China
3. Key Laboratory of Geochemical Exploration, Institute of Geophysical and Geochemical Exploration, Langfang 065000, China
4. UNESCO International Centre on Global-Scale Geochemistry, Langfang 065000, China