Glacial Erosion Landforms - Drumlins and Erratic Flashcards Preview

Geography - Ice on the Land BBC BITESIZE > Glacial Erosion Landforms - Drumlins and Erratic > Flashcards

Flashcards in Glacial Erosion Landforms - Drumlins and Erratic Deck (13)
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1
Q

What are glacial deposits?

A

Angular and mixed up.

2
Q

What are erractics?

A

Large rock or boulders that are often found on their own rather than in piles.
Unusual shapes.
Rock type uncommon to the area .

3
Q

Name an erratic.

A

Norber Erratic.

4
Q

What are drumlins?

A

Elongated hills of glacial deposits.

Often occurring in groups

5
Q

How big can drumlins be?

A

1km long and 500m wide.

6
Q

What is a group of drumlins called?

A

A drumlin swarm or a basket of eggs.

7
Q

Give an example of where drumlins are found.

A

Vale of Eden.

8
Q

Drumlins are part of what?

A

The debris that was carried along then accumulated under the ancient glacier.

9
Q

The long axis of a drumlin indicates what?

A

The direction in which the glacier was moving.

10
Q

Why would the drumlin have been deposited?

A

Because the glacier would have became overloaded with sediment.

11
Q

However, what is the disagreement?

A

Glaciologists still disagree as to exactly how drumlins were formed.

12
Q

What is the steeper end called?

A

The stoss end.

13
Q

What is the less steeper end called.

A

The lee slope.