| Environmental Geochemistry of Fluorine in the Rock—Soil—Water System in the Karst Region of Central Guizhou Province |
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| 引用本文： | 朱立军,李景阳,等.Environmental Geochemistry of Fluorine in the Rock—Soil—Water System in the Karst Region of Central Guizhou Province[J].中国地球化学学报,2000,19(2):145-151. |
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| 作者姓名： | 朱立军 李景阳 |
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| 作者单位： | DpeartmentofNaturalResources,GuizhouUniversiyofTechnology,Guiyang550003,China |
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| 摘 要： | Systematic determination of and adsorption experiment on fluorine in the carbonate rock-soil-water system in the karst region studied in Guzhou Province,in conjunction with the mineral surface and soil chemistry data,have revealed the geochemical characteristics of F and the mechanisms of its transport and entrichment in the rock-soil-water-system of the karst region central guizhou province,Deep-seated underground waters(-100m or lower)and soil layers in the karst region of central Guizhou are characterized by high-F anomalies whereas shallow-level underground and surface waters by low contents of F(mostly lower than 05mg/L).Fluorine in soil and water in the region studied comes largely from Triassic marine strata dominated by gypsum-bearing carbonate rocks.The special adsorption and desorption of F on the surface of geothite in soil layers are the important mechanisms of its transport and enrichment in the rock-soil-water system of the karst region studied.
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| 关 键 词： | 喀斯特地区 萤石 环境地球化学 贵州 岩石 土壤 水 |
Environmental geochemistry of fluorine in the rock-soil-water system in the karst region of central Guizhou Province |
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| Lijun Zhu,Jingyang Li,Chenggang Mu.Environmental geochemistry of fluorine in the rock-soil-water system in the karst region of central Guizhou Province[J].Chinese Journal of Geochemistry,2000,19(2):145-151. |
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| Authors: | Lijun Zhu Jingyang Li Chenggang Mu |
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| Institution: | 1. Department of Natural Resources, Guizhou University of Technology, 550003, Guiyang, China
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| Abstract: | Systematic determination of and adsorption experiment on fluorine in the carbonate rock-soil-water system in the karst region studied in Guizhou Province, in conjunction with the mineral surface and soil chemistry data, have revealed the geochemical characteristics of F and the mechanisms of its transport and enrichment in the rock-soil-water-system of the karst region, central Guizhou Province. Deep-seated underground waters (?100m or lower) and soil layers in the karst region of central Guizhou are characterized by high-F anomalies whereas shallow-level underground and surface waters by low contents of F (mostly lower than 0. 5 mg/ L). Fluorine in soil and water in the region studied comes largely from Triassic marine strata dominated by gypsum-bearing carbonate rocks. The special adsorption and desorption of F on the surface of geothite in soil layers are the important mechanisms of its transport and enrichment in the rock-soil-water system of the karst region studied. |
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