Glaciation: Formation of a Drumlin Flashcards
1
Q
What are Drumlins made up of & how is this material sorted?
A
Drumlins are made up of till and boulder clay. Their material is unsorted.
2
Q
How do Drumlins form? (Ok so this is crazy but think of the snail and the whale by Julia Donaldson. The snail leaves a trail. D for Drumlin. IDK WHY THIS WORKS.)
A
Drumlins form when a glacier becomes overloaded with sediment and deposits it while the glacier is still moving.
3
Q
What happens when the temperature rises?
A
When the temperature rises the glacier melts leaving behind the elongated mound.
4
Q
What way does the ‘stoss’ side face?
A
The steep ‘stoss’ side of the drumlin faces up-valley
5
Q
What way does the ‘lee’ side of the drumlin face?
A
The more gently-sloping ‘lee’ side of the drumlin faces down-valley
