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This page contains a few photos of the Dorset coast around Lulworth Cove which I visited recently (spring 2006) with a friend. There's plenty to see, and I intend to make a return visit sometime for a closer look.
This first photo is looking East towards Lulworth Cove.
A closer view of the east side of Lulworth Cove. The dip of the beds can be clearly seen. The cove has been formed by erosion cutting through the Portland Stone and Purbeck Limestone, then erosion of the softer material of the Wealden Group (on the landward side) at a faster rate -- a consequence of the beds dipping in the direction they do. The dip of the beds is a result of folding during the Alpine Orogeny of the Tertiary Period.
Looking from the cliff toward Durdle Door. The headland around Durdle Door is another consequence of the dip of the beds. It is of Portland Stone; the beds here dip almost vertically, and the softer material of the Wealden Group on the Landward side has been eroded at a faster rate.
Another view of Durdle Door.
Chalk Cliffs to the west of Durdle Door.
2006