Knox Group
| Knox Group Stratigraphic range: Late Cambrian - Early Ordovician | |
|---|---|
| Type | Group |
| Underlies | Chickamauga Group |
| Overlies | Conasauga Group |
| Lithology | |
| Primary | Dolostone |
| Other | Limestone |
| Location | |
| Region | Alabama |
| Country | United States |
| Type section | |
| Named for | Knox County, Tennessee |
The Knox Group is a widespread geologic group in the Southeastern United States. Though not commonly fossiliferous, it preserves fossils dating back to the Cambrian period. Typical lithologies include thick-bedded cherty dolomites and limestones. Associated minerals include barite, fluorite, lead, and most importantly zinc in the form of the mineral sphalerite. Oil and gas also occur in the Knox Group beneath the Appalachian Plateaus.
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