This close-up shows a cross section of the folded strata exposed on the wave-cut platform below the cliffs of Allt Wen. The dark gray material is grainier and more brittle than the light grey sediment it alternates with. The width of the pictured area is about 25cm.
Uploaded to Geograph by Rudi Winter on 7 March 2010
Photo © Rudi Winter, 7 March 2010. Licensed for reuse under this Creative Commons licence