Big Clifty Formation | |
---|---|
Stratigraphic range: Mississippian | |
Type | Formation |
Unit of | Stephensport Group[1] |
Underlies | Haney Limestone |
Overlies | Beech Creek Limestone |
Location | |
Region | Indiana |
Country | United States |
The Big Clifty Formation is a geologic formation in Indiana.[2] It preserves fossils dating back to the Carboniferous period.[3]
In Illinois and Kentucky, the Big Clifty is referred to as the Big Clifty Sandstone and has been assigned to the Golconda Formation.[4]