Landforms of glacial erosion - Aretes and pyramidal peaks Flashcards
1
Q
What are aretes?
A
Narrow, knife edged ridges resulting from the headwind of erosion
2
Q
How are aretes formed?
A
Aretes are the result of the headward erosion of neighbouring cirques through freeze thaw weathering and plucking.
3
Q
Aretes are formed by which three processes?
A
- Erosion - They are formed through the headward erosion of neighbouring cirques
- Freeze thaw weathering
- Plucking
4
Q
How are pyramidal peaks formed?
A
Pyramidal peaks are formed as a result of the headward erosion by three or more cirque glaciers.
5
Q
Give an example of an arete?
A
Crib Goch, Snowdonia
6
Q
Give an example of a pyramidal peak?
A
Mount Snowden
