Depositional landforms Flashcards
(5 cards)
1
Q
What is till?
A
A sorted mix of rocks, clay and sand usually transported as supraglacial and englacial, deposited when ice melts
2
Q
What is ablation till?
A
Till produced at the snout when the ice glacier melts
3
Q
What is lodgement till?
A
Subglacial material deposited by an active moving glacier
4
Q
What is till used for?
A
To identify where the glacier travelled from
5
Q
Formation of a drumlin
A
A glacier meets resistant rock/moraine and can’t erode so moves over the rock and as it passes over begins to smooth till back down into a slope following the direction of the glacial flow
•Formed of till
•Commonly formed in groups (swarm)
•1km long, 500m wide and 50m high
•Stoss the steeper end
can also be formed by fluvioglacial
