Rockdale Run Formation

The Rockdale Run Formation is a geologic formation in Maryland, Pennsylvania, Virginia and West Virginia.[1] It preserves fossils dating back to the Ordovician period.

Rockdale Run Formation
Stratigraphic range: Lower Ordovician
Rockdale Run Formation in Skyline Caverns, Virginia
TypeFormation
Unit ofBeekmantown Group
UnderliesPinesburg Station Dolomite
OverliesStonehenge Limestone
Thickness2450 ft[1]
Lithology
PrimaryLimestone
Otherdolomite, chert
Location
RegionMaryland, Pennsylvania, Virginia[2] and West Virginia
CountryUnited States

See also

References
  1. Geologic Unit: Rockdale Run, USGS
  2. Paleozoic Sedimentary Successions of the Virginia Valley & Ridge and Plateau
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.


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