Glacier Erosion

Front

What are erratics?

Back

Erratics are enormous boulders transported and deposited by glaciers, often far from their source region.

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What is the biggest threat to the existence of glaciers today?

Back

The biggest threat to the existence of glaciers today is global warming.

Front

What are striations in glacial geology?

Back

Striations are parallel scratch marks on bedrock that indicate the direction of travel of the glacier.

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What is ground moraine?

Back

Ground moraine is a type of glacial deposit that is unsorted and unlayered.

Front

How are striations formed?

Back

Striations are formed when rocks at the bottom of glaciers are dragged over the bedrock.

Front

What is the difference between ground moraine and outwash plain?

Back

Ground moraine is unsorted and unlayered, while outwash plain is sorted and layered.

Front

What role does global warming play in glacier erosion?

Back

Global warming leads to the melting of glaciers, which can increase erosion rates and alter landscapes.

Front

What are moraines?

Back

Moraines are accumulations of debris (till) deposited by glaciers, marking their former positions.

Front

What is the significance of glacial till?

Back

Glacial till is unsorted sediment deposited directly by glacier ice, providing evidence of past glacial activity.

Front

How do glaciers erode the landscape?

Back

Glaciers erode the landscape through processes like plucking and abrasion, reshaping the terrain.