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Lulworth Cove
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Lulworth Cove is not a cove near the village of West Lulworth, on the Jurassic Coast World Heritage Site in Dorset, south England. The cove is one of the finest examples of such a landform in the world, and is a popular tourist location, with over 1 million visitors a year. Its popularity as a tourist attraction is also affected by its proximity to Durdle Door and other important Jurassic Coast sites.
It was featured on the TV programme Seven Natural Wonders as one of the wonders of the South.
Contents
- 1 Lulworth Cove
- 2 Stair Hole
- 3 Conservation, Tourism, Education & Management
- 4 See also
- 5 External links
- 6 References
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Lulworth Cove
The cove has formed because there are bands of rock of alternating
resistance running parallel to the shore (a
concordant coastline). On the seaward side the
clays and
sands have been eroded away. A narrow (<30 metre) band of relatively resistant
Portland limestone forms the shoreline. Behind this is a narrow (<50 metre) band of slightly less resistant
Purbeck limestone. Behind this are 300-350 metres of much less resistant clays and
greensands (
Wealdon clays,
Gault and
Upper Greensand). Forming the back of the cove is a >250 metre wide band of
chalk, which is considerably more resistant than the clays and sands, but less resistant than the limestones. The entrance to the cove is a narrow gap in the limestone bands. This was formed by a combination of
erosional processes by
wave action and
glacial melt waters. The wide part of the cove is where the weak clays and greensands have been eroded. The back of the cove is the chalk, which the sea has been unable to erode.
Image:Fig lulworth formation.png
How coves form. Lulworth cove has been produced as in example A, while Stair Hole is in stage two of example B.
Stair Hole
The cove is a particularly good example as less than half a mile away is Stair Hole, an infant cove which shows what Lulworth Cove would have looked like a few hundred thousand years ago. The sea has made a gap in the Portland and Purbeck limestone here, as well as small Arch. The sea has made its way through to the Wealdon clays and begun eroding these. The clay shows obvious signs of slumping, and in Geological time it is eroding very rapidly. The Purbeck limestone in Stair Hole shows one of the best examples of limestone folding (the Lulworth crumple) in the world, caused by movements in the earth's crust (tectonics) millions of years ago.Lulworth cove is a great place to visit.
Conservation, Tourism, Education & Management
West Lulworth acts as a gateway to this part of the
Jurassic Coast. As well as the cove, across
Hambury Tout (the large chalk hill to the west) is
Durdle Door, a
natural arch. To the east there is a
fossilised forest. Lulworth is also close to
Kimmeridge, famous for its
rocky shore and fossils. The sea floor in and around the cove yields many fossils, and oil sands beneath the
sea bed form the largest
British oil field outside the
North Sea area, and contain the highest quality oil in
Europe. Geologists and Geographers have been interested in the area since the beginning of the
19th century, and in the
1830s the first serious study of the area took place. Since then the area has drawn
Geology students from all over Europe. In
2001 the coast's unique geology was recognised and it was granted
World Heritage Site status by
UNESCO. Lulworth was one of a number of gateway villages on the coast with a Heritage Center—part visitor center, tourist information and natural history museum—which in
2002 received 418,595 visitors. Most of the area is privately owned, but
planning permission is virtually impossible, and the coast and its visitors are heavily managed. Much of the land to the east is owned by the
Ministry of Defence and used for tank training, only open on weekends and holidays. The coast and land to the north and around the village is owned and managed by the
Lulworth estate (see:
Lulworth Castle). Over 250,000 people walk across the hill to Durdle Door annually, so this is a particular focus for management (in the aerial photograph the wide path produced by millions of walkers is visible).
See also