State | Virginia |
---|---|
Name | Knox Group |
Geologic age | Cambrian-Ordovician |
Lithologic constituents |
Major
Sedimentary > Carbonate > Dolostone
Sedimentary > Carbonate > Limestone
Minor
Sedimentary > Clastic > Sandstone
Incidental
Sedimentary > Chemical > Chert
|
Comments | Includes Maynardville Formation where present; 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 | Alleghany - Bland - Botetourt - Craig - Giles - Lee - Russell - Scott - Smyth - Tazewell - Washington - Wythe |