1. School of Earth Sciences and Resources China University of Geosciences (Beijing) Beijing 100083 China
2. MNR Key Laboratory of Saline Lake Resources and Environments, Institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 China
3. Qinghai Provincial Key Laboratory of Exploration and Research on Salt Lake Resources in the Qaidam Basin Qaidam Integrated Geological Exploration Institute of Qinghai Province Golmud Qinghai 816000 China
4. Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China