| 摘要: |
| 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。 |
| 关键词: 察尔汗盐湖 晶间卤水 痕量元素 |
| DOI： |
| 分类号: |
| 基金项目:国家“八五”科技重点攻关项目，85－802－01号 |
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| STUDIES ON DISTRIBUTION CHARACTER OF TRACE ELEMENTS IN INT ERSTITIAL BRINE OF QARHAN SALT LAKE |
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LIU Xing-qi,YU Sheng-song,SHAO Ming-yu
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Institute of Salt Lakes, The Chinese Academy of Sciences, Xining, 810008
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| Abstract: |
| In September, 1991, 85 samples of interstitial brine were collected from Layer S4 i. e. the uppermost layer of the salt deposits from Qarhan Salt Lake. The contents of 16 trace elements were determined using an ARL-3520 ICP. The results of an analysis of the distribution character of the trace elements in S4 interstitial brine indicate that the 16 trace elements in S4 interstitial brine are rich compared with seawater, the contents of Cr and Be are tens of thousands times and those of other elements such as Ni, Cu, Zn and V are several hundreds times as high as those in seawater. R-factor analysis indicates that the trace element contents become gradually higher with the brine evolution from carbonate type to chloride type vis sulphate type; in the region, the trace elements contents are relatively high in the east and low in the west, have rew variations from the north to the south in horizontal directions and increase with depth in the vertical direction. The metamorphic degree of S4 interstitial brine accounts for the observed horizontal variation. Likewise, the effects of the gravity, the evaporation and the pressure-bearing brine with relatively low salinity accounts for the observed vertical variation. |
| Key words: Qarhan Salt Lake, Interstitial brine, Trace element |
