1. China University of Geosciences, Wuhan, Hubei 430074, China.
2. CNNC Geological Party No. 208, Baotou, Inner Mongolia 014010, China.
3. Key Laboratory of Petroleum Resources, Gansu Province/Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, China.
4. Beijing Research Institute of Uranium Geology, CNNC, Beijing 100029, China.