Late Proterozoic rift control on the shape of the Appalachians: the Pennsylvania reentrant

Alexander Gates, D. W. Valentino

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The Pennsylvania reentrant, the most prominent deviation in the trend of the Appalachians, is the product of Late Proterozoic rifting . The Peters Creek Formation, Pennsylvania-Maryland Piedmont, contains rift-generated, deep-water turbidite deposits of Late Proterozoic-Cambrian(?) age. These rocks are an extension of the Westminster terrane and lie well to the northeast of the southern Appalachian Late Proterozoic-Cambrian rift basin (Lynchburg-Chilhowee Group basin). The basin into which the Peters Creek Formation was deposited may have connected the southern rift basin with one to the north. The preservation of the Peters Creek Formation and other age equivalent units within the Pennsylvania reentrant indicates that the New York promontory acted as a buttress to Paleozoic orogenic activity. -Authors

Original languageEnglish (US)
Pages (from-to)863-872
Number of pages10
JournalJournal of Geology
Volume99
Issue number6
DOIs
StatePublished - Jan 1 1991

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Proterozoic
basin
turbidite
piedmont
rifting
terrane
deep water
Paleozoic
rock
creek

All Science Journal Classification (ASJC) codes

  • Geology

Cite this

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Late Proterozoic rift control on the shape of the Appalachians : the Pennsylvania reentrant. / Gates, Alexander; Valentino, D. W.

In: Journal of Geology, Vol. 99, No. 6, 01.01.1991, p. 863-872.

Research output: Contribution to journalArticle

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