Knox Supergroup
Widespread geologic group in the Southeastern United States / From Wikipedia, the free encyclopedia
The Knox Supergroup, also known as the Knox Group and the Knox Formation, is a widespread geologic group in the Southeastern United States. The age is from the Late Cambrian to the Early Ordovician. Predominantly, it is composed of carbonates, chiefly dolomite, with some limestone. There are also cherty inclusions as well as thin beds of sandstone.[1][2]
Quick Facts Type, Unit of ...
Knox Supergroup | |
---|---|
Stratigraphic range: Late Cambrian-Dapingian ~497–470.0 Ma | |
Type | Supergroup |
Unit of | Sauk |
Sub-units |
|
Underlies | Ancel Group, Wells Creek Dolomite |
Overlies | |
Lithology | |
Primary | Dolomite |
Other | Limestone and sandstone |
Location | |
Region | Indiana, Illinois, Kentucky, New York, Ohio, Pennsylvania, West Virginia |
Country | United States |
Type section | |
Named for | Knox County, Tennessee |
Named by | Safford (1869, p. 151) |
Close