Thickness, character, and structure of upper Permian evaporites in part of Eddy County, New Mexico
Open-File Report
60-83
By: C.L. Jones
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Abstract
Between Project Gnome site and the International Minerals and Chemical. Corporation's plant site, in central eastern Eddy County, N. Mex., unconsolidated deposits of Quaternary age and redbeds of Triassic age attain a thickness of about 700 feet, and rest unconformably on evaporites of late Permian age. The upper Permiau evaporites are 3,000 to 3,800 feet thick, and they are divided, in descending order, into the Rustler, Salado, and Castile formations. The Rustler is largely gypsum rock, the Salado is dominantly halite rock, and the Castile contains both anhydrite rock and halite rock. The salt and anhydrite beds of the Salado and Castile are intruded by narrow dikes of alkalic rock along which the evaporites are little altered. The sedimentary rocks have a generally southeastward regional dip, but locally are warped in gentle folds of low amplitude and fairly small lateral dimensions.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Thickness, character, and structure of upper Permian evaporites in part of Eddy County, New Mexico |
| Series title | Open-File Report |
| Series number | 60-83 |
| DOI | 10.3133/ofr6083 |
| Edition | - |
| Year Published | 1960 |
| Language | ENGLISH |
| Description | 19 p. |
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