Photo 26. Mid- to Late Carboniferous Namurian to Westphalian age sedimentary rocks consisting of interbedded sandstones, siltstones and mudstones which have been steeply tilted, folded and faulted on Saundersfoot Beach, south Pembrokeshire. Here the folding associated with the Hercynian Orogeny has been so intense that the rock units have been locally shattered to form