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Quarterly Journal of Engineering Geology and Hydrogeology
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Quarterly Journal of Engineering Geology and Hydrogeology; 1979; v. 12; issue.2; p. 97-105;
DOI: 10.1144/GSL.QJEG.1979.012.02.03
© 1979 Geological Society of London

Article

Porewater composition in the unsaturated zone of the Chalk, with particular reference to nitrates

D. A. Spears

* Department of Geology, University of Sheffield, , Sheffield, SI 3JD

Thirty-seven samples of Upper Chalk from a borehole in the unsaturated zone near Manston in Kent were analysed for major elements and the mineralogy was determined. Porewaters were extracted and analysed for major cations and anions. Changes due to infiltrating water were not detected in the whole-rock analyses, but the porewater analyses generally show a decrease in concentration with increasing depth. The cause of the variations and the origin of the elements are discussed.




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S. Lee and D. A. Spears
The long-term weathering of PFA and implications for groundwater pollution
Quarterly Journal of Engineering Geology and Hydrogeology, 1995; 28: S1 - S15.
[Abstract] [PDF]