The Wissahickon Formation is a mapped bedrock unit in Pennsylvania, New Jersey, and Delaware. It is named for the Wissahickon gorge in Fairmount Park, Philadelphia.
In Maryland formations, the term "Wissahickon" is no longer used. Rocks in this classification have since been divided into several units, such as Lower Pelitic Schist and Prettyboy Schist.[1]
^Geologic Maps of Maryland: Eastern Piedmont Metasedimentary Rocks
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The WissahickonFormation is a mapped bedrock unit in Pennsylvania, New Jersey, and Delaware. It is named for the Wissahickon gorge in Fairmount Park...
Wissahickon Creek is a tributary of the Schuylkill River in Montgomery and Philadelphia Counties, Pennsylvania. Wissahickon Creek rises in Montgomery...
Philadelphia Wissahickon Creek, a tributary of the Schuylkill River Wissahickon Memorial Bridge, spans the above creek in Philadelphia WissahickonFormation, a...
Cockeysville Marble is a Precambrian, Cambrian, or Ordovician marble formation in Baltimore, Carroll, Harford and Howard Counties, Maryland. It is described...
Pensauken and Bridgeton Formations, from the Tertiary, but it has eroded through it to the underlying WissahickonFormation. Both formations consist of quartz...
are mostly Ediacaran and Cambrian aged rocks, that includes the WissahickonFormation. The Manhattan schist exists in New Jersey, largely below New York...
the platform for the deposition of sediment that would become the WissahickonFormation during a rifting of Rodinia. Sea floor spreading continued until...
The Cambrian Hardyston Formation or Hardyston Quartzite is a mapped bedrock unit in Pennsylvania and New Jersey. It was originally described by Wolff...
Bridgeton Formations, from the Tertiary, consisting of quartz sand, overlie the WissahickonFormation, but the creek has eroded below these formations to flow...
are mostly Ediacaran and Cambrian aged rocks, that includes the WissahickonFormation. Other rocks present include metabasalt, gabbro, gneiss, migmatite...
Pennsylvania. The rocks are listed in stratigraphic order. Note: Some of the Formations are laterally equivalent in age. They are listed in order from West to...
Both the Wissahickon and Militia Hill courses have been recognized for their outstanding layouts and course conditions over the years. (Wissahickon has been...
Ordovician rocks include Wilmington Complex, Setters Formation, Cockeysville Marble, and WissahickonFormation. Silurian rocks include the Iron Hill Gabbro,...
revised the name after more detailed mapping. It intrudes through the WissahickonFormation. Three lithologies were mapped in the Kensington quadrangle by Drake:...
grades into a quartz monzonite in its core. It intrudes through the WissahickonFormation and the Baltimore Gabbro Complex. In 1964, C. A. Hopson grouped...
discontinuous lenticular bodies which intrude mainly through the WissahickonFormation (gneiss). The extent of this intrusion was originally mapped in...
outdoor living space. The first floor of the house is built of local Wissahickon schist, while the second and third floors are half-timbered with panels...
position approximately 16 miles (26 km) north of Philadelphia along the Wissahickon Creek and Sandy Run, primarily situated on several hills between Old...
Fairmount Park, Philadelphia. They finally settled on the banks of the Wissahickon. "In that retired valley beside the flowing brook the secret rites and...
Bauers, Sandy (21 July 2011). "Cancer patients' urine suspected in Wissahickon iodine-131 levels". The Philadelphia Inquirer, Carbon County Groundwater...
in a traffic accident, and a woman was swept away by flooding in the Wissahickon Creek. In Philadelphia, the storm left thousands without power. More...
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