Landslide - Lyme Regis - Dorset

Question 1

describe the geology at Lyme Regis.

Answer 1

clay + shale overlying hard limestone.

Question 2

what causes the landslide at Lyme Regis?

Answer 2

The weight of houses on the clay + shale, cause upper bed to slide down the slip plane. erosion of the toe but the ocean.

Question 3

describe phase 1 of management strategy.

Answer 3

• new sea walls built. - pervious sea wall in danger of being breached.

Question 4

describe phase 2 + 3 of management strategy.

Answer 4

• 200 boreholes drilled.
• helps establish rock typer and how it’s changing.
• development of a sandy beach.

Question 5

describe phase 4 of management strategy.

Answer 5

• new sea wall on thick limestone bed.

- resists marine erosion.