Integrating Geophysical Techniques to Study a Small Confined Aquifer

P. J. Wolfe; B. H. Richard

doi:10.1071/EG991457

ISSN: 0812-3985
E-ISSN: 1834-7533

Integrating Geophysical Techniques to Study a Small Confined Aquifer
Authors P. J. Wolfe^a and B. H. Richard^a
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^a Depts. of Physics and Geological SciencesWright State University, Dayton, , OH, 45435, USA
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 22, Issue 2, Jun 1991, p. 457 - 460
DOI: https://doi.org/10.1071/EG991457
- Published online: 01 Jun 1991

Abstract

A small nature preserve in Ohio (U.S.A.) has an unusually cool environment due to artesian springs supplying cold ground water. This cool environment supports a collection of rare plants and animals. To understand the water supply so that it can be protected from encroaching development, a series of geophysical studies have been conducted over an extended period of time. The techniques include seismic refraction, seismic reflection, gravity, magnetics, and resistivity. These were supported by drilling and hydrochemical analyses.

The results of these studies show that the nature preserve sits on the edge of a major buried valley which has been filled with outwash and till. The ground water appears to flow from a high area in the northeast through an outwash layer which is capped by till. Near the nature preserve later glacial advances caused erosion of channels through the till layer. These channels were back filled with permeable sand and gravel which allowed the cold confined ground water to upwell and cool the nearby areas.

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1991-06-01

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References

Hillman, D., (1988). ‘An analysis of the Cedar Bog hydrologic system through the use of a three-dimensional groundwater flow model’. M.Sc. thesis, Wright State University.
Hoover, S. P., (1976). ‘A detailed gravity survey of the Cedar Bog area, Ohio’. M.Sc. thesis, Wright State University.
Macarevich. R. L., (1988). ‘A shallow seismic reflection investigation of a portion of the buried Teays River Valley, Champaign County, Ohio’. M.Sc. thesis, Wright State University.
Mondary, J. R, (1990). ‘The use of magnetics to delineate buried valleys’. Senior thesis, Wright State University.
Norris, S. E., and Spicer, H. C, (1958). ‘Geological and geophysical study of the preglacial Teays Valley in west-central Ohio’. U.S Geol. Surv. Water Supply Paper 1460-E.
Richard, B. H., (1973). ‘The relationship of Cedar Bog to the ancestral Teays River system’ in King, Charles C, and Fredrick, Clara M., Eds., Cedar Bog Symposium: Ohio Biol. Surv. Information Circular 4, 3-7.
Richard, B. H., King, A. D., and Contrino, C. T, (1973). ‘Gravity anomalies as indicators of groundwater reserves in glacial deposits’. Tech. Rep., U.S. Army Engineer Topographic Laboratories.
Rickertsen, M. (1988). ‘Chemical evaluation of source areas and flow paths for groundwaters in the vicinity of Cedar Bog, Champaign County, Ohio’. M.Sc. thesis, Wright State University.
Urban, D. M. (1989). ‘Two shallow seismic reflection surveys conducted near Cedar Bog in Champaign County, Ohio’. M.Sc. thesis, Wright State University.
Wolfe, P. J., and Richard, B.H. (1990). ‘Geophysical studies of Cedar Bog’ in Ward, S., (Ed.), Geotechnical and Environmental Geophysics – Vol. II: Environmental and Groundwater, Soc. of Expl. Geophys., (expected publication, 1990).

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Article Type: Research Article

Keyword(s): aquifer; gravity; seismic reflection; seismic refraction

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Integrating Geophysical Techniques to Study a Small Confined Aquifer

Abstract

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