Glacial Transport and Deposition Flashcards

1
Q

What do glaciers do?

A

Transport and deposit material.

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2
Q

Glaciers can move material such as what?

A

Rocks.

Earth.

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3
Q

Glaciers can move material such as rocks and earth over where?

A

Large distances.

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4
Q

The movement of material over large distances is called what?

A

Transportation.

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5
Q

The material is frozen in the glacier and what happens to it?

A

Carried on its surface.

Pushed in front of it.

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6
Q

What happens during the process bulldozing?

A

Ice pushes loose material in front of it.

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7
Q

When the ice carrying the material melts what happens?

A

The material is dropped on the valley floor.

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8
Q

What is it called when material is dropped on the valley floor?

A

Deposition.

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9
Q

When does deposition also occur?

A

When ice is overloaded with material.

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10
Q

The dropped material makes what?

A

Land forms such as moraines and drumlins.

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11
Q

How are glacial deposits different to river deposits?

A

Because glacial deposits aren’t sorted by weight.

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12
Q

What do glaciers deposit material as?

A

Different types of moraine.

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13
Q

What are moraines?

A

They are landforms made out of material dropped by a glacier as it melts.

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14
Q

How many types of moraines are there?

A

4 different types.

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15
Q

Name the 4 types of moraines?

A

Lateral.
Medial.
Terminal.
Ground moraine.

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16
Q

What is lateral moraine?

A

A long mound of material deposited where the side of the glacier was.

17
Q

What is medial moraine?

A

A long mound of material deposited in the centre of a valley where 2 glaciers met.

18
Q

What join together during medial moraine?

A

2 lateral moraines.

19
Q

What are terminal moraines?

A

They build up at the snout of the glacier when it remains stationary.

20
Q

During terminal moraines what is it deposited as?

A

Semicircular mounds.

21
Q

What is ground moraine?

A

Thin layer of material deposited over a large area as a glacier melts.

22
Q

What can material be deposited as?

A

Drumlins.

23
Q

What are drumlins?

A

Elongated hills of glacial deposits.

24
Q

The largest drumlins can be what size?

A

Over 1000m long.
500m wide.
50m high.

25
Q

What is the appearance of a drumlin?

A

Round, blunt and steep at the upstream end.

Tapered, pointed and gently sloping at downstream end.

26
Q

Give an example of where drumlin can be found?

A

Ribble Valley, Lancashire.