![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Fairport_Chalk_Member_of_the_Carlile_Formation_in_Ellis_County%252C_Kansas_01.png/640px-Fairport_Chalk_Member_of_the_Carlile_Formation_in_Ellis_County%252C_Kansas_01.png&w=640&q=50)
Carlile Shale
Geologic formation in the western US / From Wikipedia, the free encyclopedia
The Carlile Shale 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.[2]
Quick Facts Type, Unit of ...
Carlile Shale | |
---|---|
Stratigraphic range: Turonian ~93.9–89.8 Ma | |
![]() Rare exposure of the Fairport Chalk member of the Carlile Shale in southern Ellis County, Kansas | |
Type | Geological formation |
Unit of | Colorado Group (lower); or Benton Formation Mancos Group (NM) |
Sub-units | Juana Lopez (CO, NM) Codell Sandstone Blue Hill Shale Fairport Chalk |
Underlies | Niobrara Formation |
Overlies | Greenhorn Limestone |
Thickness | 170–230 feet (52–70 m) |
Lithology | |
Primary | Shale, chalky to carbonaceous |
Other | Limestone Sandstone Siltstone Septarians Bentonite |
Location | |
Coordinates | 38.376°N 104.979°W / 38.376; -104.979 |
Region | Mid-continental |
Country | ![]() |
Type section | |
Named for | Carlile Spring and Carlile Station, 21 mi west of Pueblo, Colorado[1] |
Named by | Gilbert |
Year defined | 1896 |
Close