Maps showing formation temperatures and configurations of the tops of the Minnelusa Formation and the Madison Limestone, Powder River basin, Wyoming, Montana, and adjacent areas
Open-File Report
78-905
By: William J. Head, Kevin Thomas Kilty, and Richard K. Knottek
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Abstract
This report is part of a study to describe the hydrogeologic framework needed to evaluate the water resources of the Paleozoic age aquifers in the Northern Great Plains coal region. Preliminary studies by the U.S. Geological Survey and State agencies in Wyoming, Montana, and South Dakota have indicated that these aquifers might provide a significant percentage of the water requirements for coal development. Geologic and water-temperature data for the Minnelusa Formation of Permian and Pennsylvanian age and for the Madison Limestone (Group where it is subdivided) of Mississippian and locally late Devonian age , and their equivalents, were compiled and interpreted. Maps were produced showing the altitude and ground-water temperatures of the top of these formations. The altitude (configuration) maps show the depth and position of the formations throughout the area. Temperature maps can be used to calculate changes in the viscosity of water caused by large temperature differences. The viscosity differences will be useful in adjusting calculated transmissivity aquifer values (the rate at which water can be transmitted through an aquifer). (Woodard-USGS)
Suggested Citation
Head, W.J., Kilty, K.T., Knottek, R.K., 1978, Maps showing formation temperatures and configurations of the tops of the Minnelusa Formation and the Madison Limestone, Powder River basin, Wyoming, Montana, and adjacent areas: U.S. Geological Survey Open-File Report 78-905, iv, 2 sheets, scale 1:1,000,000 (1 inch = about 16 miles) :5 maps (4 fold.) ;28 cm., https://doi.org/10.3133/ofr78905.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Maps showing formation temperatures and configurations of the tops of the Minnelusa Formation and the Madison Limestone, Powder River basin, Wyoming, Montana, and adjacent areas |
| Series title | Open-File Report |
| Series number | 78-905 |
| DOI | 10.3133/ofr78905 |
| Year Published | 1978 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | iv, 2 sheets, scale 1:1,000,000 (1 inch = about 16 miles) :5 maps (4 fold.) ;28 cm. |
| Scale | 1000000 |