1. State Key Laboratory of Geological Processes and Mineral Resources; China University of Geosciences; Beijing 100083 China
2. Development and Research Center of China Geological Survey; Beijing 100037 China
3. No.321 Geological Team of Bureau of Geology and Mineral Resources Exploration of Anhui Province; Tongling 244033 Anhui China
4. Tongling Nonferrous Metals Group Co., Ltd.; Tongling 244001 China