ELECTRICAL RESISTIVITY VARIABILITY IN THE ARBUCKLE SAMPSON AQUIFER

Little is known about the variations in electrical properties in massive dolomites in freshwater environments. The Arbuckle Simpson aquifer in central Oklahoma has significant electrical resistivity variability; evidenced in both airborne and surface electrical resistivity datasets. This work is an attempt to evaluate the cause of these differences utilizing handheld XRF and lithologic analysis. The plan of approach is to test the chemistry of high resistivity zones in the formation and low resistivity zones in the formation, checking for variation in calcium and magnesium concentration, by comparing dissolution rates of the samples and handheld XRF.. Understanding the significant electrical resistivity variability in the aquifer will help update the conceptual model of the aquifer using the available airborne electrical data as well as understanding the variability that can be expected in other carbonate aquifers.