Chapter 3 Erosion

Erosion

14 cards   |   Total Attempts: 182
  

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Erosion
Process in which surface materials are worn away and transported from one place to another by agents such as gravity, water, wind, and glaciers
Deposition
Dropping of sediments that occurs when an agent of erosion, such as gravity, a glacier, wind or water, loses its energy and can no longer carry its load.
Mass movement
Any type of erosion tha toccurs as gravity moves materials downslope
Slump
A type of mass movement that occurs when a mass of material moves down a curved slope
Creep
A type of mass movement in which sediments move sownslope very slowly; common in areas of freezing and thawing, and can cause walls, trees, and fences to lean downhill
Glacier
Large, moving masses of ice and snow that change large areas of Earth's surface through erosion and deposition
Plucking
Process that adds gravel, sand and boulders to a glacier;s bottom and sides as water freezes and thaws, breaking off pieces of surrounding rock
Till
Mixture of different-sized sediments that is dropped from the base of a retreating glacier and can cover huge areas of land
Moriane
Large ridge of rocks and soil deposited by a glacier when it stops moving forward
Outwash
Material deposited by meltwater from a glacier
Deflation
A type of erosion that occurs when wind blows over loose sediments, removes small particles, and leaves coarser sediments behind
Abrasion
A type of erosion that occurs when windblown sediments strike rocks and sediments, polishing and pitting their surface
Loess
Windblown deposit of tightly packed, fine-grained sediments
Dune
Mound formed when windblown sediments pile up behind an obstacle, common landform in desert areas.