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

Question 1

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

Answer 1

• Swanage
• Weymouth
• Lyme Regis
• Sidmouth
• Exmouth
• Seaton

Question 2

What Landform is Old Harry Rocks?

Answer 2

A Stack

Question 3

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

Answer 3

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

Question 4

What is the influence of climate on Old Harry Rocks?

Answer 4

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

Question 5

What is the influence of geology on Old Harry Rocks?

Answer 5

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

Question 6

What landform is Swanage Bay?

Answer 6

Headland and bay

Question 7

What are the key geomorphic processes acting on Swanage Bay?

Answer 7

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

Question 8

What is the influence of geology on Swanage Bay?

Answer 8

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.

Question 9

What is the influence of climate on Swanage Bay?

Answer 9

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