Silurian and Upper Ordovician Formations Undivided

Includes: Skrt, Sm, Oun, Ous, Ou, Om. (Shrc and Okpl?)
State Virginia
Name Silurian and Upper Ordovician Formations Undivided
Geologic age Ordovician-Silurian
Lithologic constituents
Comments Undivided; Appalachian Plateaus and Valley and Ridge
References

Virginia Division of Mineral Resources, 1993, Geologic Map of Virginia: Virginia Division of Mineral Resources, scale 1:500,000.

Virginia Division of Mineral Resources, 2003, Digital Representation of the 1993 Geologic Map of Virginia, Publication 174, CD ROM (ISO-9660) contains image file, expanded explanation in pdf, and ESRI shapefiles, scale 1:500,000.

NGMDB product
Counties Botetourt - Buchanan - Lee - Montgomery - Russell - Scott - Shenandoah - Tazewell