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20 Cards in this Set
- Front
- Back
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erosion that occurs when windblown sediments strike rock, scraping the surface and wearing it away
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abrasion
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a bowl-shaped basin formed by the erosion of a valley glacier
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cirque
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mass movement that occurs when sediments slowly inch their way down a hill and that is common in areas of freezing and thawing
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creep
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erosion caused by wind blowing across loose sediments, eroding only fine-grained particles such as clay and sand, and leaving behind coarse sediments
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deflation
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the final stage of the erosion process when sediments and rocks are deposited; dropping of sediments that occurs when an agent of erosion loses its energy of motion and is no longer able to carry its load
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deposition
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mounds of sand drifted by the wind
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dunes
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a process that wears away surface materials and moves them from one place to another
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erosion
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deep, long, parallel scars in bedrock gouged out by dragged rock fragments in glaciers
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glacial grooves
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a moving mass of ice and snow
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glacier
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wind deposits of fine-grained, tightly packed sediments
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loess
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type of erosion in which gravity alone causes loose materials to move downslope and that can happen quickly or slowly
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mass movement
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ridge of material deposited in the middle and along the sides of a glacier
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moraine
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a thick pasty mixture of sediments and water moving down a slope
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mudflow
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material deposited by the meltwater from a glacier
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outwash
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mass movement that occurs when large blocks of rock break loose from a steep slope and start tumbling, crashing into other rocks and knocking them loose, and continuing until more and more rocks break loose and tumble to the bottom
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rockslide
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matter that settles to the bottom of a liquid
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sediment
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mass movement that happens when loose materials or rock layers slip down a slope and a curved scar is left where the slumped materials originally rested
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slump
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broad, step-like cuts made into the side of a slope
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terraces
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a mixture of different-sized sediments dropped from the base of a slowing glacier
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till
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vegetation, especially trees, planted to reduce wind erosion
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windbreak
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