| State | Illinois |
|---|---|
| Name | Ullin and Salem Limestones |
| Geologic age | Mississippian (Visean) |
| Lithologic constituents | Major
Sedimentary > Carbonate > Limestone (Bed, Reef)Limestone can be oolitic, bioclastic, or cherty, also may be limestone reef.
|
| Comments | Thickness from stratigraphic column for southern Illinois (south of 40 degrees north latitude), from oldest to youngest: Ullin Ls (0-800’), and Salem Ls (0-500’), both of which comprise part of the Mammoth Cave Group. The "Warsaw lime" occurs within the Ullin Ls. [Oil well drillers' terms shown in quotation marks.] |
| Stratigraphic units | Warsaw Lime |
| References | Kolata, D.R., comp., 2005, Bedrock Geology of Illinois: Champaign, Ill., Illinois State Geological Survey, Illinois Map Series 14, scale 1:500,000. |
| NGMDB product | |
| Counties | Alexander - Hardin - Pulaski - Union |