Erosion & Deposition by Wind ,Ice and Gravity

14 terms by tiffanycmarshall

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this is all about Erosion & Deposition by Wind ,Ice and Gravity

Erosion

(geology) the mechanical process of wearing or grinding something down (as by particles washing over it).

Deposition

the natural process of laying down a deposit of something.

Gravity

(physics) the force of attraction between all masses in the universe.

deflation

the removal of fine sediment by wind .

dunes

hills of sand formed by the wind.

loess

a fine-grained unstratified accumulation of clay and silt deposited by the wind.

glacier

large, thick body of slowly moving ice.

glacier drift

the rock material carried and deposited by glaciers.

alpine glacier

form at high elevations where temperatures remain cold enough during the summer to keep the previous winter's snow from melting allowing snow and ice to accumulate., A glacier confined to a mountain valley, which in most instances had previously been a stream valley.

creep

extremly slow movement of material down slope.

rockfall

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.

landslide

A downslope movement of rock and soil over a failure surface and under the influence of gravity. Slumps, earthflows, debris flows and debris slides are examples.

mudflow

quickly moving downhill flow of soil and rock fragments containing a large amount of water.

continetial glacier

soucre of most icebergs.

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