1. School of Earth Sciences and Resources, Chang'An University, Xi'an, 710054, China
2. State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
3. School of Earth Resources, China University of Geosciences, Wuhan 430074, China
4. State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China
5. Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China
6. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China