Abstract

An electrical resistivity survey was carried out in Grundy, Chariton, and Carroll counties, Missouri, in connection with a ground-water project of the Missouri Geological Survey. The aim of the project was to locate buried channels under the glacial cover. The resistivity data obtained was interpreted both empirically and quantitatively. The empirical method was found to be satisfactory wherever the uniformity of electrical properties was maintained by either the glacial cover or bedrock, and the resistivity contrast was high. The quantitative technique used most commonly in this study was Spicer's modification of Hummet's procedure, used in conjunction with standard 2, 3, and 4-layer master curves. The limitations of the quantitative methods of interpretation are indicated in a series of resistivity distribution curves.

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