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Pensauken and Bridgeton Formations, undifferentiated

Pensauken and Bridgeton Formations, undifferentiated - Dark-reddish-brown, cross-stratified, feldspathic quartz sand and some thin beds of fine gravel and rare layers of clay or silt.
State Pennsylvania
Name Pensauken and Bridgeton Formations, undifferentiated
Geologic age Tertiary
Primary rock type sand
Secondary rock type gravel
Other rock types clay or mud; silt
Lithologic constituents
Major
Unconsolidated > Coarse-detrital > Sand (Bed)Dark-reddish-brown, cross-stratified, feldspathic quartz sand
Minor
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.
Map references
Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map. Retrieved from internet 9-30-2004; <http://www.dcnr.state.pa.us/topogeo/map1/bedmap.aspx> DL Data: pageoexp.zip
Unit references
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, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map. Retrieved from internet 9-30-2004; <http://www.dcnr.state.pa.us/topogeo/map1/bedmap.aspx> DL Data: pageoexp.zip
Counties Bucks - Chester - Delaware - Montgomery - Philadelphia