| Hydrogeochemistry of karst underground waters at shallow depth in Guiyang City, Guizhou Province |
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| 作者姓名： | 董志芬 朱立军 吴攀 沈峥 封志勇 |
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| 作者单位： | DepartmentofResourcesandEnvironment,GuizhouUniversityofTechnology,Guiyang550003,China |
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| 基金项目： | 国家自然科学基金，the Funds for the Key Laboratory of Karst Environment and Geological Hazard Prevention of Guizhou Province |
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| 摘 要： | The aim of this study is to shed light on the hydrogeochemical characteristics of karst underground waters at shallow depth in Guiyang City, Guizhou Province with an emphasis on the geochemistry of major elements. Guiyang City bears abundant underground waters and it is also an important representative of the karst areas throughout the world. Ca^2 and Mg^2 are the dominant cations, accounting for 81% -99.7% of the total, and HCO3^- and SO4^2- are the dominant anions. Weathering of limestones and dolostones is the most important factor controlling the hydrogeochemistry of underground waters, and weathering of sulfate and evaporite rocks is less important. Moreover, the precipitation and human activities also have a definite influence on the hydrogeoehemistry of underground waters in the region studied.
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| 关 键 词： | 水文地球化学 地下水 岩溶地貌 贵阳市 |
Hydrogeochemistry of karst underground waters at shallow depth in Guiyang City,Guizhou Province |
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| Dong Zhifen,Zhu Lijun,Wu Pan,Shen Zheng,Feng Zhiyong.Hydrogeochemistry of karst underground waters at shallow depth in Guiyang City, Guizhou Province[J].Chinese Journal of Geochemistry,2005,24(2):194-200. |
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| Authors: | Dong Zhifen Zhu Lijun Wu Pan Shen Zheng Feng Zhiyong |
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| Institution: | (1) Department of Resources and Environment, Guizhou University of Technology, 550003 Guiyang, China |
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| Abstract: | The aim of this study is to shed light on the hydrogeochemical characteristics of karst underground waters at shallow depth in Guiyang City, Guizhou Province with an emphasis on the geochemistry of major elements. Guiyang City bears abundant underground waters and it is also an important representative of the karst areas throughout the world. Ca 2 and Mg 2 are the dominant cations, accounting for 81%- 99.7% of the total, and HCO -3 and SO 2- 4 are the dominant anions. Weathering of limestones and dolostones is the most important factor controlling the hydrogeochemistry of underground waters, and weathering of sulfate and evaporite rocks is less important. Moreover, the precipitation and human activities also have a definite influence on the hydrogeochemistry of underground waters in the region studied. |
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| Keywords: | major element hydrogeochemistry underground water at shallow depth karst Guiyang City |
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