Fernvale Limestone | |
---|---|
Stratigraphic range: Ordovician | |
Type | Formation |
Underlies | Cason Shale |
Overlies | Kimmswick Limestone |
Thickness | 0 to 100+ feet in Arkansas[1] |
Lithology | |
Primary | Limestone |
Location | |
Region | Arkansas, Tennessee |
Country | United States |
Type section | |
Named by | Charles Willard Hayes and Edward Oscar Ulrich[2] |
The Fernvale Limestone is a geologic formation in Alabama, Arkansas, Illinois, Missouri, Oklahoma, and Tennessee.[1] It preserves fossils dating back to the Ordovician period.