Lithostratigraphy
Devonian
| Famennian | Chattanooga shale (Givetian – Famennian) |
| Frasnian | Chattanooga shale (Givetian – Famennian) |
| Givetian | Chattanooga shale (Givetian – Famennian) |
Cambrian
| Cambrian stage 4 | Weisner formation (Cambrian stage 3 – Cambrian stage 4) |
| Cambrian stage 3 | Wilson Ridge formation Nichols shale Weisner formation (Cambrian stage 3 – Cambrian stage 4) Cochran formation |