Type Geological formation Region mid-continental Underlies Niobrara Formation | Thickness 170–230 feet (52–70 m) Overlies Green Horn Formation | |
Unit of Colorado Group (lower); or
Benton Formation Sub-units Codell Sandstone
Blue Hill Shale
Fairport Chalk Other limestone
sandstone
siltstone
septarians
bentonite Primary Slate, Sandstone, Siltstone | ||
Mb geotour 3 roadside outcrop of upper cretaceous morden member of the carlile formation
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.
It is composed of marine deposits of the Cretaceous Seaway of the Western Interior. In some regions it overlies the Greenhorn Formation, and underlies the Niobrara Formation.
Upper Turonian series Plesiosaur remains are among the fossils that have been recovered from its strata from its Blue Hill Shale Member in Kansas.
References
Carlile Formation Wikipedia(Text) CC BY-SA