chapter 12 vocabulary words

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shoreline
The boundary between land and a body of water.
beach
an area on the shoreline made up of material deposited by waves.
saltation
the movement sand or sediments by short jumps or bounces it is caused by wind or water.
deflation
a form of wind erosion which fine,dry soil particles are blown away.
abarision
the grinding and wearing away of rock surfaces,the mechanical action of other rock,sand particles.
loess
very fertile sediments of quartz,feldspar,clay,mica,and hornblende deposited by the wind.
dune
a mound of wind-deposited sand that keeps it's shape even though it moves
glacier
a large mass of moving ice.
glacial drift
the rock material carried and deposited by glaciers.
till
unsorted rock material that is deposited directly by a melting glacier.
startified drift
a glacial deposit that has been sorted and layered by the action of streams or melted water.
mass movement
a movement of a section of land down a slope .
rockfall
the rapid mass movement of rock down a steep slope or cliff.
landslide
the sudden movement of rock and soil down a slope.
mudflow
the flow of a mass of mud or rock and soil mixed with a large amount of water.
creep
The slow downhill movement of weathered rock material.