2012
ST4576 : The Cliff Portishead
taken 12 years ago, near to Portishead, North Somerset, England
The Cliff Portishead
This is the only cliff we can boast as the upstream is ragged conglomerate and fallen haematite beds and blocks (1960 ff climbing) and almost without reach and the downstream is rugged conglomerate and somewhat laid back, so this is it. It is reputed to have once had a Devonian fish bone bed until excavated and there are other rumours of Permian landslide so the pebble bed works fall across the sandstone in a deep wedge. This appears better from t'other side. The rest belong to Redcliff and Clevedon until Exmoor is reached, that differs again as Dartmoor granite uplift displaced metamorphosed almost and steep dip. As I cannot quite see the petrological and lithological link between the Mendip Hills, Blackdown Pericline quartzite hard sandstone and this mixed bag of layers (bedding) we were taught, with the Limestone Shale Mendip and knowing Silurian runs into Old Red Sandstone as shale in Wales and there is no Middle, I withdraw from the conflict and aver this is a separate mass although joined by structural theory of projection in Geologic section, it must be a coastal form of an inland steadily forming sand basin that became infused with more quartz, sand cemented by precipitate quartz. This and the Permian make Portishead unique and the Triassic wadi at Mendip the more explicable. Originally everything was Red Sandstone and as with Torridon was divided, but there are many reasons why the parts should not! have been united across country since then. Best separate them with some new names for regions?
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