Hydrogeochemistry of karst underground waters at shallow depth in Guiyang City, Guizhou Province

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 representat...

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Bibliographic Details
Published in:Acta geochimica 2005-04, Vol.24 (2), p.194-200
Main Author: 董志芬 朱立军 吴攀 沈峥 封志勇
Format: Article
Language:English
Subjects:
Anions
Aquifers
Calcium ions
Cations
Evaporites
Geochemistry
Groundwater
Hydrogeochemistry
Hydrology
Karst
Magnesium
Major elements
Weathering
地下水
岩溶地貌
水文地球化学
贵阳市
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Summary: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.
ISSN:1000-9426
2096-0956
1993-0364
2365-7499
DOI:10.1007/BF02841166