The Culm Coast, where I live, is a continuous source of interesting rock architecture, often changing year on year. During the Variscan Orogeny massive tectonic forces folded rocks into extraordinarily contorted layered patterns that are exposed in what is known as the ‘Bude Formation’. These layers wear at different rates and split off due to the action of the frost and erosion from the constant pummelling of waves.
Depicted in the image here is the results of this erosion. An older weathered layer is falling away to reveal a younger less exposed layer underneath.
On this cliff at Northcott Mouth near Bude the contrast between the two layers really catches the eye.