Summary
Summary Isle of Purbeck case studies
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Features of a coast with examples from the Isle of Purbeck (Dorset)
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Some examples from this set of practice questions
1.
What Status does the Jurassic coast hold
Answer: World Heritage site. Its called the Jurassic coast as is the period when the rock formed
2.
Where is a good place to see tectonic folding in Dorset?
Answer: Stair Hole (Lulworth Crumple) Just west of Lulworth cove is where sea eroded through limestone to create cove. It is the best place to see tectonic folding as beds of Purbeck limestone and shale are visible. The tectonic folding occurred due to tectonic movements
3.
What is a Concordant Coast and give an example
Answer: A concordant coast is where bands of rock run parallel to the coast. This creates coves. An example is the Southern Coast of the Isle of Purbeck including Lulworth cove and the Kimmeridge coast
4.
How a cove like Lulworth Cove is formed
Answer: Formed on a Concordant coastline where bands of rock run parallel to the coast. The sea erodes the resistant rock away and exposes softer rock. This erodes quickly and forms a cove. At Lulworth it is Purbeck beds then Wealden clay
5.
What is a Discordant Coastline and example
Answer: It is where bands of rock run perpendicular to the coast. So an example is the east coast of the Isle of Purbeck. More resistant rock are headlands and less resistant are bays E.G. Studland has Bagshot clay, Chalk ridge for old Harry, Wealdon beds fro swanage
6.
What is Studland Bay
Answer: It is an area of sand dunes which are protected to allow wildlife to thrive
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