Glaciation

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What is an ice age?
Long period of time where global temperature is very cold and large areas were covered with sheets of ice
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What is an inter glacial period?
A short term period of warmer temperatures within an ice age. (current one is called the Pliestocene ice age)
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What are ice sheets?
Large areas of solid ice which completely cover continents. E.g. Antarctica
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What are valley glaciers?
Tongues of ice that 'flow' down valleys. Short valley glaciers are called corries or cirques
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How do glaciers begin?
Snow compaction on sheltered valley turns into Neve and eventually into ice. Eventually due to accumulation, they begin to flow downhill.
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What is the glacial budget?
Balance between accumulation (snow & avalanches) and ablation (melting) of a glacier.
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What happens when accumulation and ablation are not balanced?
More accumulation- glacier will advance.
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Other cards in this set

Card 2

Front

A short term period of warmer temperatures within an ice age. (current one is called the Pliestocene ice age)

Back

What is an inter glacial period?

Card 3

Front

Large areas of solid ice which completely cover continents. E.g. Antarctica

Back

Preview of the back of card 3

Card 4

Front

Tongues of ice that 'flow' down valleys. Short valley glaciers are called corries or cirques

Back

Preview of the back of card 4

Card 5

Front

Snow compaction on sheltered valley turns into Neve and eventually into ice. Eventually due to accumulation, they begin to flow downhill.

Back

Preview of the back of card 5
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