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The top plate illustrates the tectonic setting for the sediments of Pennsylvania. This section is characterized by the metamorphic rocks that provide much of the bedrock for this area. The oldest exposed rocks in Pennsylvania are found here and consist of the Baltimore Gneiss. [8] These rocks have a complex history and a vast array of different ...
Pages in category "Cambrian geology of Pennsylvania" The following 13 pages are in this category, out of 13 total. This list may not reflect recent changes. A.
This article contains a list of fossil-bearing stratigraphic units in the state of Pennsylvania, U.S. Sites. Group or Formation ... Cambrian: Bellefonte Formation:
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 Kinzers Formation is a geologic formation in Pennsylvania. It preserves fossils dating back to the Cambrian Period. The base of the Kinzers Formation is primarily a dark-brown shale. The middle is a gray and white spotted limestone and, locally, marble having irregular partings. The top is a sandy limestone which weathers to a fine-grained ...
Appendage of the Cambrian radiodont Lenisicaris †L. pennsylvanica – type locality for species; Lingula †Lingulella †Llanoaspidella – type locality for genus †Llanoaspis – tentative report †Lonchocephalus; Life restoration of the Permian snake-like amphibian Lysorophus showing speculative egg-coiling behavior †Lysorophus ...
This is a list of Global Boundary Stratotype Sections and Points.Since 1977, Global Boundary Stratotype Sections and Points (abbreviated GSSPs) are internationally agreed upon reference points on stratigraphic sections of rock which define the lower boundaries of stages on the geologic time scale.
The Pennsylvanian (/ ˌ p ɛ n s əl ˈ v eɪ n i. ən / pen-səl-VAYN-i-ən, [4] also known as Upper Carboniferous or Late Carboniferous) is, on the ICS geologic timescale, the younger of two subperiods of the Carboniferous Period (or the upper of two subsystems of the Carboniferous System).