The photos below are mainly reproductions of some photos from the book where the detail is not easily evident from the printed size of the picture. There’s also one photo of dolerite that gives a better impresion of a typical weathered dolerite outcrop than the photo selected for the book (photo 4.13). Click on the thumbnail for a larger image, then hit your return button to get back to this page.
Photo 4.8 - Flow banding and breccia in intrusive rhyolite - note only the upper bands have been ‘brecciated’.
Photo 4.13 (Supplement) - this photo does not appear in the book, but is a better example of a classic dolerite outcrop than the photo used (4.13). The outcrop shown is about 3m. high and shows typical dolerite features - rounded edges and irregular jointing.
Photo 5.4 - Llyn du’r Arddu
Photo 6.3 - The glacial breaching point at Pen y Pass.
Photo 6.10 - The Llanberis Pass looking towards Pen y Pass.
Photo W3.1 - Block of breccia, miners’ track heading towards Bwlch Caseg y Fraith.
Photo w6.5 - View west from the summit of Elidir Fawr at sunset.
Photo w7.2 - Ancient fault line and line of the ‘Snowdon caldera’, Carnedd y Cribau. The line continues through the glacial breaching point at Pen y Pass visible in the distance.
Photo w7.5 - Block of breccia in intrusive rhyolite, Carnedd y Cribau.
Photo w12.1 - View of Llyn Dwythwch and Cwm Dwythwch.
