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.
Pedra do Segredo
Rio Grande do Sul, Brazil
This utcrop exposes alluvial sequences of the Pedra do Segredo (Secret Stone) formation, which belongs to the Santa Bárbara Group in the Camaquã Supergroup.
These rocks have been deposited after ca. 550 Ma, after the Gondwana supercontinent assembly.
Lat: 30°32'4.70"S
Long: 53°33'14.48"W
Created by Felipe Guadagnin at Universidade Federal do Pampa, Brazil