Lowland Deposits

Gravel, sand, silt, and clay. Medium- to coarse-grained sand and gravel; cobbles and boulders near base; commonly contains reworked Eocene glauconite; varicolored silts and clays; brown to dark gray lignitic silty clay; contains estuarine to marine fauna in some areas (includes in part Pamlico, Talbot, Wicomico and Sunderland Formations of earlier reports); thickness 0 to 150 feet.
State Maryland
Name Lowland Deposits
Geologic age Quaternary
Lithologic constituents
Unconsolidated > Fine-detritalsilt and clay
Unconsolidated > Coarse-detritalgravel and sand; cobbles and boulders near base

Cleaves, E.T., Edwards, J., Jr., and Glaser, J.D., 1968, Geologic Map of Maryland: Maryland Geological Survey, Baltimore, Maryland, scale 1:250,000.

In 1995 the Water Resources Division of the U.S. Geological Survey digitized the geologic map of Maryland from the 1968 paper map (Reference MD001). Information about products from the Maryland Geological Survey can be found at http://www.mgs.md.gov/.

NGMDB product
Counties Anne Arundel - Baltimore - Calvert - Caroline - Cecil - Charles - Harford - Howard - Kent - Montgomery - Prince George's - Queen Anne's - Saint Mary's - Talbot - Baltimore