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9 Cards in this Set
- Front
- Back
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Continuous and/ or discontinuous permafrost is found in the US. True or false? |
True |
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This type of permafrost has a thin active layer (<.5 m) and is around 400m deep of permafrost |
Continuous permafrost |
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What is an active layer? |
Soil subject to thawing and refreezing |
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What is an talik? |
An unfrozen area surrounded by permafrost |
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This type of permafrost is thin and contains unfrozen gaps |
Discontinuous permafrost |
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Pingo |
A mound formed by water moving upward through the ground, freezing and expanding |
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This is when sediment sorts itself in a way that forms repeating polygons, lines and other shapes |
Patterned ground |
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How does gelification occur? |
Frozen **** does not leave Frozen **** gets thawed and saturates **** starts to move |
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A house sits on permafrost and later sinks into the ground, why? |
permafrost melted |
