Folding at Broadhaven
Pembrokeshire, SW Wales
​
One of The Geological Society's 100 Great Geosites. Asymmetric folds in interbedded Carboniferous siltstones, shales and coal horizons are cut here by a number of northward-propagating thrusts. This classic structure has been studied in some detail (e.g. Williams and Chapman,1983) as it provides an excellent outcrop example to examine the interplay between faulting and folding during deformation.
​
Trevayne
Pembrokeshire, SW Wales
​
Large-scale harmonic fold within Carboniferous siltstones, shales and coal horizons. Close inspection of the fold core reveals several low offset thrust segments which probably formed to accommodate the relatively tight interlimb angle here. The cross-section below shows the transition in structural style between this location, Monkstone Point and Saundersfoot.
Trevayne
Pembrokeshire, SW Wales
​
Large-scale harmonic fold within Carboniferous siltstones, shales and coal horizons. Close inspection of the fold core reveals several low offset thrust segments which probably formed to accommodate the relatively tight interlimb angle here. The cross-section below shows the transition in structural style between this location, Monkstone Point and Saundersfoot.
Tarlair coastal exposure
Moray, NE Scotland
​
Dalradian metasediments of the Macduff Slate Formation. These turbiditic metasandstones and metamudstones are folded into large upright anticlines and synclines. At the small-scale, well-developed cleavage can be observed within these units. Bedding/cleavage relationships can be used here to establish positions on the fold, particularly where isoclinally folded.
​
The three virtual outcrops here show the structure at different scales, from the entire locality to a detailed view of bedding/cleavage relationships.
Lat: 57°40'15.1"N
Long: 2°28'25.3"W
​