Living in the UK Today - LOUK (CS Jurassic Coastline) Flashcards Preview

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Flashcards in Living in the UK Today - LOUK (CS Jurassic Coastline) Deck (9)
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1
Q

What are the key urban areas located on the Jurassic coastline ?

A
  • Swanage
  • Weymouth
  • Lyme Regis
  • Sidmouth
  • Exmouth
  • Seaton
2
Q

What Landform is Old Harry Rocks?

A

A Stack

3
Q

What are the key geomorphic processes acting on Old Harry Rocks?

A
  • Wave refraction: focused erosion at headland and base of cliff
  • Weathering: Weakens cliff
4
Q

What is the influence of climate on Old Harry Rocks?

A
  • Cliffs created 65 million years ago during warmer climate (cocoliths sank to sea bed)
  • 1896 storm destroyed Old Harry’s wife
5
Q

What is the influence of geology on Old Harry Rocks?

A

Old Harry is made of resistant Cretaceous chalk and cliffs contain joints and bedding planes

6
Q

What landform is Swanage Bay?

A

Headland and bay

7
Q

What are the key geomorphic processes acting on Swanage Bay?

A
  • Deposition: wave refraction disperses energy in Swanage Bay
  • Erosion: energy concentrated at Peveril Point and Ballard Point
8
Q

What is the influence of geology on Swanage Bay?

A

Less resistant wealden clay aligned perpendicular to the coastline erodes faster providing lots of material to be deposited on the beach. Headlands also provide material as they are slowly eroded.

9
Q

What is the influence of climate on Swanage Bay?

A
  • High energy storms have eroded the cliffs behind the beach further, providing more sediment for the beach.
  • Climate will affect weathering and erosion processes.