| Salem Formation | |
|---|---|
| Stratigraphic range: Mississippian | |
_(45624979264).jpg) Fossil red algae on Salem Limestone from Kentucky | |
| Type | Formation |
| Unit of | Sanders Group, Meramec Group |
| Underlies | St. Louis Limestone |
| Overlies | Harrodsburg Limestone[1] Warsaw Formation[2] |
| Lithology | |
| Primary | Limestone |
| Location | |
| Region | Illinois, Indiana, Kentucky, and Missouri |
| Country | United States |
| Type section | |
| Named for | Salem, Washington County, Indiana[2] |
The Salem Formation is a geologic formation in Illinois, Indiana, Kentucky, and Missouri. It preserves fossils dating back to the Mississippian subperiod. This formation is quarried and used as a building material, known as "Indiana limestone", also called Bedford limestone.
- ^ "General Stratigraphic Column for Paleozoic Rocks in Indiana" (PDF). Archived from the original (PDF) on 2019-07-18.
- ^ a b Thompson, Thomas L., 2001, Lexicon of Stratigraphic Nomenclature in Missouri, Missouri Department of Natural Resources, Division of Geology and Land Survey, Report of Investigation Number 73, p 253-254