| Lytle Formation Lytle Sandstone | |
|---|---|
| Stratigraphic range: | |
 | |
| Type | Formation/Formation Member |
| Unit of | North-central CO:Dakota Group South-central CO:Purgatoire Formation[1] |
| Underlies | South Platte Formation (at Dinosaur Ridge) Glencairn Formation (valley of the Dry Cimarron) |
| Overlies | Morrison Formation (unconformably) |
| Thickness | 40–120 feet (12–37 m) |
| Lithology | |
| Primary | Sandstone |
| Other | conglomeratic sandstone (notably chert gravel), variegated claystone[1] |
| Location | |
| Coordinates | 38°36′09″N 104°52′04″W / 38.6025°N 104.867778°W |
| Region | Colorado New Mexico Wyoming |
| Country | United States |
| Type section | |
| Named for | Lytle, Colorado |
| Named by | G.I. Finlay |
| Year defined | 1916 |
  Lytle Formation (the United States)  Lytle Formation (Colorado) | |
The Lytle Formation or Lytle Sandstone is a geologic formation found in Wyoming,[2] Colorado,[3] and New Mexico.[4]
- ^ a b Cite error: The named reference
GeolexUnitwas invoked but never defined (see the help page). - ^ Waage, K.M. (1955). "Dakota group in northern Front Range foothills, Colorado". U.S. Geological Survey Professional Paper. 274-B: B15–B51. Retrieved 2 September 2020.
- ^ Finlay, G.I. (1916). "-Description of the Colorado Springs quadrangle, Colorado" (PDF). U.S. Geological Survey Geologic Atlas of the United States Folio. 203. Retrieved 2 September 2020.
- ^ Waage, Karl M. (1953). "Refractory clay deposits of south-central Colorado". U.S. Geological Survey Bulletin. 993. doi:10.3133/b993.