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Upland Deposits (Western Shore)

Upland Deposits (Western Shore) - Gravel and sand, commonly orange-brown, locally limonite-cemented; minor silt and red, white, or gray clay; (includes Brandywine, Bryn Mawr, and Sunderland Formations of earlier reports); lower gravel member and upper loam member in Southern Maryland; thickness 0 to 50 feet.
State Maryland
Name Upland Deposits (Western Shore)
Geologic age Quaternary
Primary rock type gravel
Secondary rock type sand
Other rock types silt; clay or mud
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Gravel
Unconsolidated > Coarse-detrital > Sand
Minor
Unconsolidated > Fine-detrital > Silt
Unconsolidated > Fine-detrital > Clay
Map references
Cleaves, E.T., Edwards, J., Jr., Glaser, J.D., 1968, Geologic Map of Maryland: Maryland Geological Survey, Baltimore, Maryland, scale 1:250,000.
Unit references
Cleaves, E.T., Edwards, J., Jr., Glaser, J.D., 1968, Geologic Map of Maryland: Maryland Geological Survey, Baltimore, Maryland, scale 1:250,000.
Unpublished digital version of the Maryland state geologic map that was digitized by the USGS Water Resources Office in Towson, MD
Counties Anne Arundel - Baltimore - Calvert - Cecil - Harford - Prince George's - Saint Mary's