Cliffs at Druidston Haven, Pembrokeshire

Originally uploaded for the Guesswhere UK group.

Scanned from a Kodachrome transparency.

The cliffs here are comprised of dark grey - black Ordovician shales which display a Caledonian (end of Silurian) anticline-syncline fold pair which has subsequently been re-folded by the Variscan (end of Carboniferous) orogeny. In this photo the anticline, which was probably originally upright, can just be seen 'on its side' with its crest pointing to the south (left).