Fernvale Limestone

Fernvale Limestone
Stratigraphic range: Ordovician
TypeFormation
UnderliesCason Shale
OverliesKimmswick Limestone
Thickness0 to 100+ feet in Arkansas[1]
Lithology
PrimaryLimestone
Location
RegionArkansas, Tennessee
CountryUnited States
Type section
Named byCharles 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.

  1. ^ a b McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 6–7. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-11.
  2. ^ Hayes, C.W.; Ulrich, E.O. (1903). "Description of the Columbia quadrangle" (PDF). U.S. Geological Survey Geologic Atlas of the United States. 95: 2.