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《Journal of Anhui Agricultural Sciences》 2008-08
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Study on the Factors Influencing Geochemical Migration of Silicon Dioxide and Strontium

SUN Xun et al (College of Engineering, Shijiazhuang University of Economics, Shijiazhuang, Hebei 050031)  
[Objective] The purpose was to study the factors influencing the formation and migration of beneficial components such as silicon dioxide and strontium in underground water under hypergenic geochemistry environment. [Method] The factors influencing geochemical migration of dioxide silicon and strontium were studied through studying the mineral composition of aquifer medium, hypergenic geochemistry process, weathering degree of rock-forming mineral and water-exchange intensity in Panshan area. [Result] The average content of microelement strontium was 0.075% in weathered adamellite and 0.076% in original rock. In this area, the wells whose fluxes were bigger than 20 m3/h all located in both the sides or contact zone of dyke and the annual average rainfall was 677.1 mm. The dissolved amount of beneficial components from semi-weathering rock was highest, that from fresh rock was secondary and that from thoroughly weathered rock was least. The dissolution of dioxide silicon and strontium was more influenced by hydrodynamic condition. [Conclusion] The geochemical migration of dioxide silicon and strontium in Panshan area closely related to the lithology of aquifer medium, occurrence of hypergenic geochemistry process, weathering degree of rock-forming mineral and exchange intensity of underground water.
【CateGory Index】: P595
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