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1991年9月，定深采集了察尔汗盐湖S4层晶间卤水的85个样品，利用ARL-3520等离子光谱仪对样品中16种痕量元素进行了分析测试，根据测试结果对S4层晶间卤水痕量元素集散特征进行了研究。结果表明，察尔汗盐湖S4层晶间卤水中的16种痕量元素比海水富集；痕量元素随卤水的不断浓缩，其含量趋于增高。在S4层晶间卤水水平方向上，痕量元素的含量出现东高西低、南北变化不大的分异现象；垂直方向上表现为随深度的增加其含量出现增高的趋势。
In September 1991, a total of 85 samples of intergranular brine in S4 layer of Chaerhan Salt Lake were collected, and 16 kinds of trace elements in the samples were analyzed by ARL-3520 plasma spectrometer. According to the test results, The characteristics of trace elements in brine are studied. The results show that 16 kinds of trace elements in intergranular brine of S4 layer in Chaerhan Salt Lake are enriched than seawater. The content of trace elements tends to increase with the continuous concentration of brine. In the horizontal direction of the S4 layer intercrystalline brine, the content of trace elements appears high in the west and low in the north and little changes in the north and south. The vertical distribution of trace elements shows an increasing trend as the depth increases.