Carlile Formation
| Carlile Formation Stratigraphic range: Turonian Upper/Late Cretaceous | |
|---|---|
| Type | Geological formation |
| Sub-units |
Codell Sandstone Blue Hill Shale Fairport Chalk |
| Underlies | Niobrara Formation |
| Overlies | Greenhorn Formation |
| Thickness | 170–230 feet (52–70 m) |
| Lithology | |
| Primary |
Shale, sandstone, siltstone |
| Location | |
| Region | Colorado |
| Country | United States |
The Carlile Formation is a Turonian age Upper/Late Cretaceous series shale geologic formation in the central-western United States, including in the Great Plains region of Colorado, Kansas, Nebraska, New Mexico, North Dakota, South Dakota, and Wyoming.[1]
It is composed of marine deposits of the Cretaceous Seaway of the Western Interior.[2] In some regions it overlies the Greenhorn Formation, and underlies the Niobrara Formation.
- Fossils
Upper Turonian series Plesiosaur remains are among the fossils that have been recovered from its strata from its Blue Hill Shale Member in Kansas.[3]
See also
References
- ↑ USGS.gov: Mineral resources of the Niobrara and Carlile Formations
- ↑ Archives.datapages.com: Stratigraphy of the Carlile Formation and Niobrara Formation (Upper Cretaceous)
- ↑ Jstor.org: "Probable plesiosaur remains from the Blue Hill Shale (Carlile Formation)" in Kansas", Kansas Academy of Science, 2009.
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