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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 ...
The house is made from cut and squared Wissahickon schist, [2] and is located on Stenton Avenue, which borders Wyndmoor and the Chestnut Hill area of Philadelphia. The original property was owned by Hannah Callowhill Penn. [3] She was the second wife of William Penn, the first colonial proprietor of the Province of Pennsylvania. After her ...
The walls are composed of Wissahickon schist, a less expensive option than brick and a choice that reflected the traditional building materials used in Germantown. The exterior of the house follows a hierarchy of design that includes a range of construction techniques finishes and from high style to vernacular.
Local Wissahickon schist was used for the walls, Eastern granite for the trim, and slate for the roof. The interior is notable for its variety of woods: oak for the hall and stairway, butternut walnut for the parlor, mahogany for the reception room, quartered oak in the dining room and library, sycamore for the office, and cypress for the ...
Morris "hired Japanese garden makers Kushibiki and Arai to arrange one hundred tons of local Wissahickon schist into rockery formations resembling a cave or mountain cliff accented by delicate waterfalls, a flowing stream bed, and a goldfish pond."
These rocks eventually provided the platform for the deposition of sediment that would become the Wissahickon Formation during a rifting of Rodinia. Sea floor spreading continued until a passive margin developed along the new Iapetus Ocean and a beach strandline developed.
Wissahickon Creek is a tributary of the Schuylkill River in Montgomery and Philadelphia Counties, Pennsylvania. [1]Wissahickon Creek rises in Montgomery County, runs approximately 23 miles (37 km) passing through and dividing Northwest Philadelphia before emptying into the Schuylkill River at Philadelphia.
Pages in category "Schist formations" ... Wissahickon Formation This page was last edited on 25 January 2020, at 15:03 (UTC). Text is available under the Creative ...