Mapping of the Buried Pre-Glacial Surface of Ohio
The buried valleys of the Teays and Hamilton River systems are being mapped in Ohio using gravity, magnetics, seismic refraction, resistivity and ground penetrating radar. These studies include county wide gravity studies, integrated geophysical studies of known buried valley locations and regional gravity studies. The purpose is to increase the knowledge of the buried topography and with this, improve the water resource knowledge of Ohio.
Detailed Geophysical Studies of the Subsurface Beneath a Wet Land (Cedar Bog)
This area is of interest because it conbtains a unique biota that is a mixture of the natural Ohio biota and a much colder biota. These two living assemblages live together here because of a cold microclimate supported by springs. The subsurface studies aid in the understanding of the source of these springs.
Fracture Delineation in Carbonate Rocks
The location of fractures in carbonate rocks and their orientation can aid in the exploration for oil and water resources. Seismic shear wave transmission and electrical resistivity studies can help locate these fracture system
The Use of Gravity Measurements to Find Small Buried Erosional Remnants
Much of the oil in Ohio is trapped in erosional remnants on a buried surface. These appear to be related to small gravity anomalies. Unfortunately, other anomalies exist associated with the glacial overburden. Attempts are being made to separate these anomalies and make thhis a valid exporation tool.
Geophysical Delineation of Deep Ohio Structures
Seismic reflection and potential field studies are used to define a Precambrian basin. Rrecently researchers hasve found basins that are either early Cambrian or late Precambrian in southwestern Ohio. Detailed seismic reflection studies and potential field studies are being conducted to further delineate these basins. In addition, there is complex structure beneath these basins. These same studies are being used to clarify the relationship and setting of these basins relative to the Precambrian Granite-Rhyolite and Grenville Provinces.
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Benjamin
Richard