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20 Cards in this Set

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erosion that occurs when windblown sediments strike rock, scraping the surface and wearing it away
abrasion
a bowl-shaped basin formed by the erosion of a valley glacier
cirque
mass movement that occurs when sediments slowly inch their way down a hill and that is common in areas of freezing and thawing
creep
erosion caused by wind blowing across loose sediments, eroding only fine-grained particles such as clay and sand, and leaving behind coarse sediments
deflation
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
deposition
mounds of sand drifted by the wind
dunes
a process that wears away surface materials and moves them from one place to another
erosion
deep, long, parallel scars in bedrock gouged out by dragged rock fragments in glaciers
glacial grooves
a moving mass of ice and snow
glacier
wind deposits of fine-grained, tightly packed sediments
loess
type of erosion in which gravity alone causes loose materials to move downslope and that can happen quickly or slowly
mass movement
ridge of material deposited in the middle and along the sides of a glacier
moraine
a thick pasty mixture of sediments and water moving down a slope
mudflow
material deposited by the meltwater from a glacier
outwash
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
rockslide
matter that settles to the bottom of a liquid
sediment
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
slump
broad, step-like cuts made into the side of a slope
terraces
a mixture of different-sized sediments dropped from the base of a slowing glacier
till
vegetation, especially trees, planted to reduce wind erosion
windbreak