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.

Salem Formation
Stratigraphic range: Mississippian
Fossil red algae on Salem Limestone from Kentucky
TypeFormation
Unit ofSanders Group, Meramec Group
UnderliesSt. Louis Limestone
OverliesHarrodsburg Limestone[1] Warsaw Formation[2]
Lithology
PrimaryLimestone
Location
RegionIllinois, Indiana, Kentucky, and Missouri
CountryUnited States
Type section
Named forSalem, Washington County, Indiana[2]

See also

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References

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  1. ^ "General Stratigraphic Column for Paleozoic Rocks in Indiana" (PDF). Archived from the original (PDF) on 2019-07-18.
  2. ^ 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
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