the wearing down of rock particles by friction due to water or wind or ice
(geology) the erosion of soil as a consequence of sand and dust and loose rocks being removed by the wind
hills of sand pushed up by winds
a fine-grained unstratified accumulation of clay and silt deposited by the wind
a slowly moving mass of ice
the rock material carried and deposited by glaciers
a glacier that moves down from a high valley
bowl-shaped basins eroded by valley glaciers
a sharp narrow ridge found in rugged mountains
smoothe the landscapes by removin the features that existed before the ice appeared
isolated boulders left behind by a glacier
any period of time during which glaciers covered a large part of the earth's surface
the downhill movement of rock and soil because of gravity
a slow creeping mode of locomotion (on hands and knees or dragging the body)
Type of mass movement that involves the detachment and movement of a small block of rock from a cliff face to its base. Normally occurs when the rock has well defined bedding planes that are exaggerated by freeze-thaw action or thermal expansion and contraction.
a slide of a large mass of dirt and rock down a mountain or cliff
quickly moving downhill flow of soil and rock fragments containing a large amount of water
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