Analysis of the Hydrochemical Characteristics and the Evolutionary Stages of Brine in Mahai Salt Lake in the Qaidam BasinShu-ya Hu, Quan-sheng Zhao, Jian-wei Zhang and Jian-lei ChenE3S Web Conf., 98 (2019) 07011DOI: https://doi.org/10.1051/e3sconf/20199807011