4.3 glaciers

4.3: Glaciers

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AardrijkskundeMiddelbare schoolvmbo t, mavo, havo, vwoLeerjaar 2

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4.3: Glaciers

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What do you know about glaciers?

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Glacier

A large ice mass, often shaped like a river.

Glaciers are able to move due to gravity

Terminous/snout is the end of a glacier

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Glaciers usually form in a cirque

Cirque (keteldal)

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Plucking and abrasion

Plucking: A type of erosion in a glacier: the movement of the glacier pulls rocks away. (afbreken)

Abrasion : A type of erosion in a glacier: the glacier scrapes along its bottom and sides. (wrijving)

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Off to work

Do 2 first in class. You need an atlas

then 3-5

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Glacial erosional landforms

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Notes

Because of plucking and abrasion, the glaciers forms a valley called a U-Shaped valley

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Hanging valley

A valley created by a tributary galcier which hangs above the main valley

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Depositional landforms

Glaciers do not only erode material. They also carry the eroded rocks and sediments to other places: this is called deposition

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Moraines

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Moraines

A depositional landform formed by glaciers: sediments that have been pushed together.

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Exercise

Pick a glacier in the world.
In which country is your glacier
What is the weight of your glacier
What is there to do for tourist on your glacier
How has the glacier changed over the years

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