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The following is a list of the mapped bedrock units in Pennsylvania. The rocks are listed in stratigraphic order. The rocks are listed in stratigraphic order. [ 1 ]
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 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 ...
The York Haven Diabase was previously thought to be Triassic in age, however a map published in 1980 by the Pennsylvania Geologic Survey provided evidence for the diabase to be Jurassic in age. The York Haven Diabase is within the Gettysburg Basin
Paul E. Olsen, 1980 [1] The Passaic Formation is a mapped bedrock unit in Pennsylvania , New Jersey , and New York . It was previously known as the Brunswick Formation since it was first described in the vicinity of New Brunswick, New Jersey .
De Witt (1974) extended the Scherr and Foreknobs into Pennsylvania, but did not use the term Greenland Gap Group. [ 3 ] Boswell, et al. (1987), does not recognize the Scherr and Foreknobs Formations in the subsurface of West Virginia and thus these formations are reduced from "group" to "formation" as the Greenland Gap Formation.
The Gatesburg Formation is a geologic formation in Pennsylvania. [4] It preserves fossils dating back to the Cambrian period . The formation is described by Berg and others as gray dolomite , limestone , and sandstone .
De Witt (1974) extended the Scherr and Foreknobs into Pennsylvania but did not use the term Greenland Gap Group. [ 2 ] Boswell et al. (1987), does not recognize the Scherr and Foreknobs Formations in the subsurface of West Virginia, and thus, these formations are reduced from "group" to "formation" as the Greenland Gap Formation.