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Supplemental material: Unraveling the central Appalachian fold-thrust belt, Pennsylvania: The power of sequentially restored balanced cross sections for a blind fold-thrust belt

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journal contribution
posted on 19.04.2012 by Peter B. Sak, Nadine McQuarrie, Benjamin P. Oliver, Natasha Lavdovsky, Margaret S. Jackson
Geosphere, June 2012, v. 8, p. 685-702, doi:10.1130/GES00676.1, Plate 1 - (A) Simplified geologic cross section extending from the southern boundary of the Valley and Ridge physiographic province to the pin line beyond the extent of documented layer-parallel shortening on the Appalachian Plateau. Area of B is shown within the red box. (B) Balanced cross section from A–A′ extending from the southern boundary of the Valley and Ridge physiographic province to the Pennsylvania–New York border in the undeformed foreland. (C) Restored cross section. The deformed length (271 km) and restored undeformed length (348 km) are measured from the pin line beyond the extend documented layer-parallel shortening on the Appalachian Plateau, resulting in 77 km of shortening, or 22%. LPS—layer-parallel shortening. Circled numbers 1–12 are faults (see text and Fig. 11).

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