Pembrokeshire, SW Wales
Carboniferous limestones folded and deformed during the Variscan Orogeny. This upright, upward-facing syncline shows a strongly developed cleavage in finer-grained layers. Have a look at the virtual outcrop: there are a number of small-offset thrust segments and the core of the fold is well exposed on the seaward side of the structure.
A sketch of this outcrop by Lady Murchison was included in Roderick Murchison's The Silurian System (1839). This fold was also used as the cover image for the Volume 1, Issue 1 of The Journal of Structural Geology. Stackpole also features as one of The Geological Society's 100 Great Geosites.
Lat: 51°47'11.73"N, Long: 5° 6'14.68"W
Virtual outcrop generated using Agisoft Photoscan from 220 aerial photographs acquired with a DJI Phantom 3. Processing, photos and text by Adam Cawood