Hanging Valleys (Glacial Troughs) Flashcards
1
Q
Example of hanging valleys:
A
The valley of Church Beck which flows down into Coniston Water in the Lake District.
2
Q
What valleys do they occur in?
A
Pre-existing tributary river valleys which were not glaciated, or tributary glacial valleys.
3
Q
How are hanging valleys formed?
A
In tributary glacial valleys there would have been less ice and therefore less erosion than in the main valley.
The tributary valley floor was therefore left higher than that of the main valley when the ice retreated.
4
Q
Where do hanging valleys occur?
A
On the side of the main valley
