Pamunkey Group; Aquia Formation (MDTa;5)

Pamunkey Group; Aquia Formation - Dark green to gray-green, argillaceous, highly glauconitic, well-sorted fine- to medium-grained sand; locally indurated shell beds; thickness 0 to 100 feet.

State	Maryland
Name	Pamunkey Group; Aquia Formation
Geologic age	Paleocene
Original map label	Ta
Primary rock type	sand
Secondary rock type
Other rock types
Lithologic constituents	Major Unconsolidated > Coarse-detrital > SandDark green to gray-green, argillaceous, highly glauconitic, well-sorted fine- to medium-grained sand; locally indurated shell beds; thickness 0 to 100 feet.
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 Unpublished digital version of the Maryland state geologic map that was digitized by the USGS Water Resources Office in Towson, MD
Geographic coverage	Anne Arundel - Cecil - Charles - Kent - Prince George's - Queen Anne's