Glaciers & Glacial Landforms Flashcards

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1
Q

What are glaciers?

A

Large areas of slow moving ice due to the accumulation of compacted snow.

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2
Q

What are alpine’s?

A

Found in mountainous regions, also known as mountain glaciers or valley glaciers.

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3
Q

What are ice sheets?

A

Formed over larger area of land, large sheets that spread out from the center.

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4
Q

Plucking

A

Glaciers freeze the joints of the bedrock inside and carries away large pieces of debris.

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5
Q

Abrasion

A

Glaciers scrape and polish the landscapes, making it either smooth or causes cuts in it as they carry debris downhill.

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6
Q

Aretes

A

When 2 cirque basins meet. the dividing ridge between them is called an Aretes.

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7
Q

Col

A

When an aretes erodes between 2 cirque basins, forming a mountain pass.

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8
Q

Horn

A

The peak of a cirque basin that forms a pyramid structure. Basically the tip of a mountain.

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9
Q

Glacier Landforms

A

Moraines - the deposition of rock as it’s brought down a valley. This causes ripples in the landscape.
Drumlins - oval shaped hills underneath glacial ice, caused by the flow of ice downhill.
Eskers - deposits of glacial material made by melting glaciers.
Kettle Lakes - shallow depositions in the landscape formed by retracting glacial ice.

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