Moraines

Question 1

What is terminal moraine?

Answer 1

Found at the snout;
Consist of a ridge of material;
At right angles to the direction of ice advance;
Steep sided;
Up to 50/60m;
Crescent shaped;
Unsorted ablation material.

Question 2

What is moraine?

Answer 2

Lines or a series of mounds of material, mainly running across glacial valleys.

Question 3

How are terminal moraines formed?

Answer 3

When the ice melts during a period of snout standstill and the material it has been carrying is deposited.

Question 4

What are recessional moraines?

Answer 4

As the glacier retreats, it is possible for a series of moraines to be formed along the valley, marking points where the retreat halted for some time.

Question 5

What are push moraines?

Answer 5

If the climate cools for some time, leading to a glacial advance, a previously deposited moraine may be shunted up into a mound known as a push moraine.