Mathematics – Logic
Scientific paper
Nov 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30uhls2n&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 21, pp. HLS 2-1, CiteID 2091, DOI 10.1029/2003GL018096
Mathematics
Logic
29
Physical Properties Of Rocks: Magnetic And Electrical Properties, Physical Properties Of Rocks: Transport Properties, Hydrology: Groundwater Transport, Oceanography: Biological And Chemical: Oxidation/Reduction Reactions, Hydrology: Groundwater Quality
Scientific paper
In situ measurements of redox potential are rather difficult to perform and provide only sparse information on its spatial distribution. To delineate redox fronts in a contaminant plume, the self-potential (SP) method can be a helpful complement to geochemical measurements. Here, we apply the SP method to the Entressen municipal waste landfill (south-eastern France) over a 20 km2 area. The results show a large negative SP-anomaly of ~-400 mV with respect to a reference station taken outside the contaminant plume. Once removed the electrokinetic component associated with groundwater flow, the residual self-potential signals are linearly correlated with in situ measurements of redox potential. We propose a quantitative relationship between self-potential and redox potential, which would be used to invert self-potential measurements in terms of in situ redox potential values in contaminant plumes.
Bégassat P.
Bottero Jean-Yves
Naudet V.
Revil André
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