| Geochemistry of Brines from Salt Ore Deposits in Western Tarim Basin |
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| 作者姓名： | 马万栋 马海州 谭红兵 董亚萍 张西营 孙国芳 |
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| 作者单位： | QinghaiInstituteofSaltLakes,ChineseAcademyofSciences,Xining810008,China |
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| 基金项目： | SupportedbyNational 30 5Project (2 0 0 1BA6 0 9A 0 7 16 ) |
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| 摘 要： | In the geological evolution of the Tarim Basin, many transgressions and relictions happened. So there have been plentiful sources of salt. Moreover, because of uttermost drought, a lot of salt has been deposited. It is possible to find potash salt in this area. In our fieldwork, we have found salt and brine in western Tarim Basin. Based on a geological survey and the characteristics of sedimentary facies and paleogeography, this paper deals with the geochemical parameters and discusses the possibility of formation of potash salt in terms of the chemical analyses of samples collected from western Tarim Basin. Results of brine analysis lead to some conclusions: most of these salt brines have eluviated from very thick halite beds, mainly chloridetype salt and this kind of halite does not reach the stage of potash deposition in all aspects; WKSL (Wukeshalu) occupies a noticeable place, and we should attach importance to this district because there have been some indicators of the occurrence of potash deposits as viewed from the contents of Br and K. Finally, low Br contents are recognized in the Tarim Basin as a result of salt aggradation, and this point of view has been proved by the results of this experiment and the data available. It cannot depend upon the index of Br to judge the evolution stage of halite. We must look for other facies of potash except marine facies.
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| 关 键 词： | 塔里木盆地西部 地球化学 碳酸钾 盐湖 |
Geochemistry of brines from salt ore deposits in western Tarim Basin |
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| Ma?Wandong,Ma?Haizhou,Tan?Hongbing,Dong?Yaping,Zhang?Xiying,Sun?Guofang.Geochemistry of Brines from Salt Ore Deposits in Western Tarim Basin[J].Chinese Journal of Geochemistry,2004,23(3):238-244. |
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| Authors: | Ma Wandong Ma Haizhou Tan Hongbing Dong Yaping Zhang Xiying Sun Guofang |
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| Institution: | (1) Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, 810008 Xining, China |
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| Abstract: | In the geological evolution of the Tarim Basin, many transgressions and relictions happened. So there have been plentiful sources of salt. Moreover, because of uttermost drought, a lot of salt has been deposited. It is possible to find potash salt in this area. In our fieldwork, we have found salt and brine in western Tarim Basin. Based on a geological survey and the characteristics of sedimentary facies and paleogeography, this paper deals with the geochemical parameters and discusses the possibility of formation of potash salt in terms of the chemical analyses of samples collected from western Tarim Basin. Results of brine analysis lead to some conclusions: most of these salt brines have eluviated from very thick halite beds, mainly chloride-type salt and this kind of halite does not reach the stage of potash deposition in all aspects; WKSL (Wukeshalu) occupies a noticeable place, and we should attach importance to this district because there have been some indicators of the occurrence of potash deposits as viewed from the contents of Br and K. Finally, low Br contents are recognized in the Tarim Basin as a result of salt aggradation, and this point of view has been proved by the results of this experiment and the data available. It cannot depend upon the index of Br to judge the evolution stage of halite. We must look for other facies of potash except marine facies. |
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| Keywords: | western Tarim Basin geochemical parameter possibility of formation of potash salt |
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