Erosional Landforms

Question 1

Corrie

Answer 1

A large depression formed at the start of a glacier, it is formed by rotational slip and nivation. A bergschrund at the back wall where it seperates

Question 2

Arête and pyramidal peaks

Answer 2

Formed when 2 Corrie’s back onto each other forming a knife edge or when 3 or more Corrie’s back onto each other they form a pyramid shape

Question 3

Glacial trough

Answer 3

A u shaped valley which is formed as a glacier comes through and bulldozes the sides and bottom, removing all of the land there

Question 4

Ribbon Lake

Answer 4

Formed when there is a band of less resistant rock, the glacier erodes it quicker and leaves it lower down

Question 5

Hanging valley

Answer 5

Formed when at a tributary of 2 glaciers, if one is smaller than the other it will be left higher up making it appear like it is hanging

Question 6

Roche mountnee

Answer 6

Formed when a glacier passes over a rock, it moves over creating a steep side at the front and a shallow side at the back which is smooth