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Chapter 3

Chapter 3. Par 3: Rivers of ice. Greenland; Elephant foot glacier. Argentina; glacial terminus. Firn basin. Debris. Glacier : An ice field that is moving very slowly down a mountain. Lateral moraine. Aletsch Glacier Switzerland, largest glacier of the Alps. Glacial tunnel.

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Chapter 3

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  1. Chapter 3 Par 3: Rivers of ice

  2. Greenland; Elephant foot glacier Argentina; glacial terminus Firn basin Debris Glacier: An ice field that is moving very slowly down a mountain Lateral moraine Aletsch Glacier Switzerland, largest glacier of the Alps Glacial tunnel

  3. From the firn basin, a glacier is slowly moving down the mountain. Erosion is causing moraine and debris

  4. Firn formation: a fluffy snowflake turns into firn caused by - melting and freezing over and over again- pressure of new layers of snow, so old layers are pressed together

  5. Summer temperature 10˚C Ice age or glacial: a period when the summer temperature is below 10˚CNowadays we are in an interglacial period

  6. Lake Garda: an example of a lake caused by a glacier

  7. Geirangerfjord, Norway: a U-valleycausedby a glacierwhich is filledwithseawater

  8. Fjord coast: Norway aerial photo and map

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