Glaciers And Ice Related Things

Question 1

What is a glacier

Answer 1

A glacier is the build up of snow for a long period of time. The snow is then compacted to form ice and then moves down slowly due to the force of gravity.

Question 2

Are glaciers found at the zone of ablation?

Answer 2

Yes. However, due to higher temperatures they are less common than at the zone of accumulation

Question 3

Difference between zone of accumulation and zone of ablation

Answer 3

The zone of accumulation often has lower temperatures than the zone of ablation, meaning it experiences more glaciers due to less ice melts. On the other hand, the zone of ablation receives more ice melts due to the higher temperatures

Question 4

Describe the glacier formation

Answer 4

Glaciers form when the temperature is low enough for snow to fall instead of precipitation. As it falls, the snow piles up on top of each other after a period of time and then is squeezed and compacted to form ice. The ice then moves downhill due to the force of gravity forming a glacier.

Question 5

How are corries formed

Answer 5

Corries are formed when snow piles up in a hollow and is compacted to form ice. Freeze thaw weathering erodes the rock causing it to fall on the glacier. Plucking causes rocks to break off and steepens the backwall. Abrasion then deepens the hollow through erosive factors. When the erosion is at it’s lowest, a rock lip is formed.

Question 6

What is interglaciation

Answer 6

Interglaciation is a period in time where more ice melts occur due to an increase in temperature.

Question 7

What is moraine

Answer 7

Moraine refers to rocks or sediments broken off by erosional proccesses sich as freeze thaw weathering and plucking. These rocks and sediments are later then transported and deposited

Question 8

What causes a glacier to move

Answer 8

The force of gravity

Question 9

Describe plucking

Answer 9

Plucking is when freeze thaw weathering happens causing rocks with ice to break off. The ice freezes onto the rock and some of it breaks off.

Question 10

Describe abrasion

Answer 10

Abrasion is when erosive factors cause rocks to break off due to consistent contact

Question 11

What are alpine glaciers

Answer 11

Glaciers in mountains

Question 12

What are continental glaciers

Answer 12

Glaciers on land