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Zones d'oxydo-réduction dans l'aquifere de la Craie des bassins de Paris et de l'Allemagne du nord = Redox zones in the chalk aquifer of the Paris and North German basins

Kloppmann, W.; Dever, L.; Edmunds, W.M.. 1996 Zones d'oxydo-réduction dans l'aquifere de la Craie des bassins de Paris et de l'Allemagne du nord = Redox zones in the chalk aquifer of the Paris and North German basins. Hydrological Sciences Journal, 41 (3). 311-326. 10.1080/02626669609491505

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Abstract/Summary

A combined geochemical and isotopic study of chalk groundwater in the Paris Basin and northern Germany shows a distinct chemical zonation with respect to elements with different oxidation states (O, N, S, Fe, Mn, U) and to measured Eh. During the passage of a “redox-barrier” separating oxidizing and reducing groundwater O2 and N-NO3 are removed. The observed reaction sequence corresponds to the theoretical sequence proposed by Stumm & Morgan (1981) and to those described by Champ et al. (1979) and Edmunds et al. (1984). Measured Eh can be used as a semi-quantitative master variable in order to interpret the observed reactions. Apparent stabilities of redox species are very similar to those in English chalk groundwater.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1080/02626669609491505
Programmes: BGS Programmes > Groundwater Management
ISSN: 0262-6667
Additional Keywords: GroundwaterBGS, Groundwater, Catchment processes, Major aquifer
Related URLs:
Date made live: 02 Dec 2010 14:44
URI: http://nora.nerc.ac.uk/id/eprint/12459

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