1. State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing 210046, PR China
2. Geological Survey of Anhui Province, Hefei 230001, PR China
3. Guangdong Provincial Key Laboratory of Geological Processes and Mineral Resource Exploration, Department of Earth Sciences, Sun Yat-sen University, Guangzhou 510275, PR China
4. Uranium Resources Company Limited, China General Nuclear Power Group, Beijing 100029, PR China