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The Geology of Pennsylvania consists of six distinct physiographic provinces, three of which are subdivided into different sections. Each province has its own economic advantages and geologic hazards and plays an important role in shaping everyday life in the state.
The following is a list of the mapped bedrock units in Pennsylvania. The rocks are listed in stratigraphic order. ... Formation name Member name Map symbol [2 ...
The Devonian Old Port Formation is a mapped bedrock unit in Pennsylvania, USA.Details of the type section and of stratigraphic nomenclature for this unit as used by the U.S. Geological Survey are available on-line at the National Geologic Map Database. [2]
World map from this time period. The Carboniferous – 354 to 290 Million Years Ago, University of California Museum of Paleontology. Information on stratigraphies, localities, tectonics, and life. The Pennsylvanian Epoch of the Carboniferous Period: 318 to 299 Mya, Paleos.com; US Geological Survey comparison of time scales
The Pennsylvania Geological Survey, or Bureau of Topographic and Geologic Survey (BTGS), is a geological survey enacted by the Pennsylvania General Assembly "to serve the citizens of Pennsylvania by collecting, preserving, and disseminating impartial information on the Commonwealth's geology, geologic resources, and topography in order to contribute to the understanding, wise use, and ...
South of Tuscarora Mountain in south central Pennsylvania, the lower members of this unit were also mapped as the Montebello Formation. [5] Details of the type section and of stratigraphic nomenclature for this unit as used by the U.S. Geological Survey are available on-line at the National Geologic Map Database. [6]
The Pennsylvanian Pottsville Formation is a mapped bedrock unit in Pennsylvania, western Maryland, West Virginia, Ohio, and Alabama.It is a major ridge-former in the Ridge-and-Valley Appalachians of the eastern United States. [3]
The Ordovician Martinsburg Formation (Om) is a mapped bedrock unit in Pennsylvania, New Jersey, Maryland, Virginia, and West Virginia.It is named for the town of Martinsburg, West Virginia for which it was first described.