State | Pennsylvania |
---|---|
Name | Allegheny and Pottsville Formations, undivided |
Geologic age | Pennsylvanian |
Lithologic constituents |
Major
Sedimentary > Clastic > Mudstone > Shale
Sedimentary > Clastic > Sandstone
Minor
Sedimentary > Coal
Sedimentary > Clastic > Conglomerateincludes lower Pottsville conglomerate
|
Comments | Digital map differences from 1980 map: Allegheny and Pottsville changed from groups to formations. |
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, Miles, C.E., and Whitfield, T.G., compilers, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map, scale 1:250,000. |
NGMDB product | |
Counties | Bradford - Lycoming - Sullivan - Tioga |