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The Structural and Metamorphic History of the Wissahickon Formation in the Philadelphia Area. Map of the compositional layering and Fairmount schistosity.
The Structural and Metamorphic History of the Wissahickon Formation in the Philadelphia Area. Map of the compositional layering and Fairmount schistosity.
Description
From Amenta, R., The Structural and Metamorphic History, Bryn Mawr 1970, Figure 4.
