glaciers

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  • a glacier is a large body of ice formed from compressed snow. They slowly down hill under there own weight and gravity.
  • there are 3 types of glacier:

                             - valley/mountain glacier- these are like giant rivers of ice that flow slowly down a mountain or valley from the snowline above.

                             - ice sheet- these are the largest type of glacier they can be 2-3 km thick so they completely cover the landscape so very few landmarks can be seen. They are found in Antartica and Greenland.

                              - ice field- these are mini ice sheets and can be up to 50,000km2. They form in plateau like uplands.

mountain/ valley glaciers

formation and growth

(http://pubs.usgs.gov/fs/2009/3046/images/fs20093046_fig03.png)

  • accumilation- the creation of glacier (snow is added).

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Anisa Akhtar

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