Rocks at Caswell Bay

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Caswell Bay in Gower features a classic sequence of different rock types within the broader category of Carboniferous Limestone. As you walk in an easterly direction from the café and car park at the top of the beach, towards the sea with the rock outcrops on your left, you walk past a series of spectacular rock formations with marked stratification and jointing, weathering and erosion patterns, faults, thrusts and folds. A repeated sequence of Caswell Bay Mudstone, Caninia Oolite, Laminosa Dolomite, Crinoidal Limetones, and Seminula Oolite.

It is not a straightforward series because of the synclinal and anticlinal folding and thrusts – so I am still trying to fathom out which rock is which! Nevertheless, artistically and photographically there was much to enjoy and this Posting presents a range of the natural patterns and structures in the limestone. Some of the more interesting rock patterns have been photographed close-up and were shown in an earlier Posting Caswell Rock Patterns & Textures.

One of the sources of information I am using to try and understand the geology at Caswell Bay and to identify the rocks that I am photographing is the on-line Geological Society Field Guide to Caswell Bay.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

Carboniferous Limestone formations at Caswell Bay, Gower, South Wales, UK.

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