State | Virginia |
---|---|
Name | Potomac Formation |
Geologic age | Cretaceous |
Lithologic constituents |
Major
Unconsolidated > Coarse-detrital > Sand
Minor
Unconsolidated > Fine-detrital > Clay
Unconsolidated > Fine-detrital > Silt
|
Comments | Coastal Plain |
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 | Arlington - Caroline - Chesterfield - Fairfax - Hanover - Henrico - Prince George - Prince William - Spotsylvania - Stafford - Sussex - Alexandria - Colonial Heights - Fredericksburg - Hopewell - Petersburg - Richmond |