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10 Cards in this Set
- Front
- Back
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Liquefaction
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The conversion of moderately cohesive, unconsolidated sediment into a fluid, water-saturated mass.
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Rock Avalanche
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The events described in Peru when material moved as fast as 125 miles per hour.
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Slump
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The downward sliding of a mass of rock or unconsolidated material moving as a unit along a curved surface (mass wasting event)
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Rockslides
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The sudden and rapid movements that occurs when detached segements of bedrock break loose and slide downslope (mass wasting event)
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Debris Flow
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Relatively rapid type of mass wasting process that involves a flow of soil and regolith contiaing a large amount of water.
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Lahar
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A volcanic debris flow
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Earthflow
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most often occur on hillsides in humid areas during times of extremely heavy precipitation or snowmelt (mass wasting event)
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Creep
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involves the gradual downhill movement of soil and regolith primarily caused by the alternate expansion and contraction of material caused by wetting/drying and freezing/thawing.
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Solifluction
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A form of creep in which soil flows downslope at a rate of 0.5 to 15 centimeters per year. Solifluction occurs in relatively cold regions when the brief warmth of summer thaws only the upper meter or two of regolith, which becomes waterlogged because the underlying ground remains frozen and therefore the water cannot drain down into it.
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Permafrost
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Permanently frozen ground.
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