Descriptive, geologic, and borehole geophysical logs for 23 test holes in south-central Nebraska
Open-File Report
84-73
By: R.A. Hiergesell
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Abstract
This report presents logs for 23 test holes drilled in eight counties in south-central Nebraska as part of a study of the hydrogeology of the area. Five logs are presented for each of the test holes. The first is a written description summarizing the sediments penetrated during drilling; the second is a geological log providing a diagrammatic representation of the stratigraphic units; the remaining three show spontaneous potential, single-point resistance, and natural-gamma radiation measured in the test holes. The test holes penetrate silts, sands, and gravels of Quaternary age, and siltstones, sandstones , and silts of the Ogallala Formation of Tertiary age. Each test hole was drilled deep enough to penetrate about 20 feet of the underlying Cretaceous-age bedrock. (USGS)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Descriptive, geologic, and borehole geophysical logs for 23 test holes in south-central Nebraska |
| Series title | Open-File Report |
| Series number | 84-73 |
| DOI | 10.3133/ofr8473 |
| Edition | - |
| Year Published | 1984 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | iii, 148 p. :ill. ;28 cm. |
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