| Carbondale Group | |
|---|---|
| Stratigraphic range: Middle Pennsylvanian | |
| Type | Geological group |
| Sub-units |
|
| Underlies | McLeansboro Group |
| Overlies | Raccoon Creek Group |
| Lithology | |
| Primary | Shale, Siltstone |
| Other | Sandstone, Coal |
| Location | |
| Region | Illinois Basin |
| Country | United States |
| Type section | |
| Named for | Carbondale, Illinois |
The Carbondale Group is a Middle Pennsylvanian aged unit found in the Illinois Basin. This geologic unit is made up of siliciclastic rock and coal beds.[1]