Depositional landforms

Question 1

Pyramidal peak formation

Answer 1

1) Peak mainly eroded by water, snow that gathers and forms ice
2) Frost makes peak jagged, corrie glaciers cut back into peak
3) Pyramidal peak is formed as well as corries. Arêtes are formed between the peaks

Question 2

What is till?

Answer 2

I sorted mix of rocks, clay and sand usually transported as supraglacial and englacial, deposited when ice melts

Question 3

What is ablation till?

Answer 3

Produced at the snout when the ice glacier melts

Question 4

What is lodgement till?

Answer 4

Subglacial material deposited by an active moving glacier

Question 5

What is till used for?

Answer 5

To identify where the glacier travelled from

Question 6

Formation of a drumlin

Answer 6

A glacier meets resistant rock/moraine and can’t erode so moves over the rock and as it passes over begins to smooth back down
•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