Application of surface geophysics to ground-water investigations

applications and interpretation in selected geohydroThis manual reviews the standard methods of sur­ face geophysics applicable to ground-water investi­ gations. It covers electrical methods, seismic and gravity methods, and magnetic methods. The general physical principles underlying each method and its capabilities and limitations are’ described. Possibilities for non-uniqueness of interpre­ tation of geophysical results are noted. Examples of actual use of the methods are given to illustrate logic environments. The objective of the manual is to provide the hy­ drogeologist with a sufficient understanding of the capabilities, limitations, and relative cost of gee­ nhvsical methods to make sound decisions as to ah-& use of these methods is desirable. The manual also provides enough information for the hydrogeolo­ gist to work with a geophysicist in designing geophys­ ical surveys that differentiate. significant hydrogeologic changes.