Formed when surface layer thaws and is above the permafrost
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Continuous permafrost
Found in coldest regions with little thawing
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Discontinuous permafrost
There are breaks in the permafrost around rivers, sea and lakes
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Sporadic permafrost
Permafrost only in isolated spots
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Frost heave
smaller sediment around larger stones below the surface freezes. Some stones heat up and cold won faster than other material. Soil beneath the stones freezes and pushes up the stones till they reach the surface
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Other cards in this set
Card 2
Front
Continuous, discontinuous, sporadic
Back
3 types of permafrost
Card 3
Front
Formed when surface layer thaws and is above the permafrost
Back
Card 4
Front
Found in coldest regions with little thawing
Back
Card 5
Front
There are breaks in the permafrost around rivers, sea and lakes
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