Geology Reference
In-Depth Information
and magnetics, have been used to map regional aquifers and large-scale
basin features. Seismic methods have been used to delineate bedrock aquifers
and fractured rock systems. Electrical and electromagnetic methods have
proved particularly applicable to groundwater studies as many of the
geological formation properties that are critical to hydrogeology such as the
porosity and permeability of rocks can be correlated with electrical
conductivity signatures. Most geophysical techniques have been used for
groundwater characterization but once again it is with the electrical and
electromagnetic methods that the greatest success has been shown in directly
mapping and monitoring contaminated and clean groundwater. The use of
geophysics for groundwater studies has been stimulated in part by a desire
to reduce the risk of drilling dry holes and also a desire to offset the costs
associated with poor groundwater production.
REFERENCES
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Eddy-Dilek, C.A., Hoekstra, P., Harthill, N., Blohm, M., and Phillips, D.R., 1996.
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