| State | Pennsylvania |
|---|---|
| Name | Hamburg sequence rocks |
| Geologic age | Ordovician |
| Lithologic constituents |
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)
Minor
Sedimentary > Clastic > Siltstone (Bed)
Sedimentary > Clastic > Sandstone > Graywacke (Bed)
Incidental
Sedimentary > Clastic > Conglomerate (Bed)includes some wildflysch having Martinsburg matrix.
|
| 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 | Berks - Cumberland - Dauphin - Lebanon - Lehigh - York |