|Name||Pensauken and Bridgeton Formations, undifferentiated|
Unconsolidated > Coarse-detrital > Sand (Bed)Dark-reddish-brown, cross-stratified, feldspathic quartz sand
Unconsolidated > Coarse-detrital > Gravel (Bed)some thin beds of fine gravel
Unconsolidated > Fine-detrital > Clay (Bed)rare layers of clay or silt.
Unconsolidated > Fine-detrital > Silt (Bed)rare layers of clay or silt.
Berg, T.M., Edmunds, W.E., Geyer, A.R., and others, compilers, 1980, Geologic map of Pennsylvania: Pennsylvania Geological Survey, 4th ser., Map 1, 2nd ed., 3 sheets, scale 1:250,000.
Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, Miles, C.E., and Whitfield, T.G., compilers, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map, scale 1:250,000.
|Counties||Bucks - Chester - Delaware - Montgomery - Philadelphia|