Pennine Fault System

The Pennine Fault System is a NW-SE trending zone of faulting that forms the southwestern boundary to the Pennines in Cumbria. It was formed as a normal fault during Permian rifting, bounding the Vale of Eden basin, which has a half-graben geometry. It links through to the Dent Fault at its southeastern end.[1] Rocks of Ordovician and Silurian age outcrop between the two main strands of the fault, forming the Cross Fell inlier.[2]

References
  1. Hughes R.A. (2003). "Permian and Triassic rocks of the Appleby district (part of Sheet 30, England and Wales)" (PDF). Integrated Geoscience Surveys (North) Research Report RR/02/01. Natural Environment Research Council. Retrieved 19 March 2015.
  2. "North Pennines Area of Outstanding Beauty and European Geopark: A Geodiversity Audit" (PDF). North Pennines AONB. 2010. Archived from the original (PDF) on 2 April 2015. Retrieved 19 March 2015.
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