Flashcards in Glacial Erosion Landforms - Aretes and Pyramidal Peaks Deck (5)
What is an arete?
A knife-edge ridge.
How is an arete formed?
When two neighbouring corries run back to back.
Each glacier erodes either side of the ridge, the edge becomes steeper and the ridge becomes narrower
Give an example of an arete?
Striding Edge found on Helvellyn Lake District.
How is a pyramidal peak formed?
Where 3 or more corries and aretes meet.
Glaciers have carved away at the top of a mountain creating a sharply pointed summit.