Agents of Erosion & Deposition
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19 terms
Terms | Definitions |
|---|---|
 shoreline | a boundary line between land and water |
| beach | an area of sand sloping down to the water of a sea or lake |
| longshore current | a water current that travels near and parallel to the shoreline |
| saltation | The movement of sand or other sediments by short jumps and bounces that is caused by wind or water |
| deflation | a decrease in the general price level of goods and services |
| abrasion | the wearing down of rock particles by friction due to water or wind or ice |
| dune | a ridge of sand created by the wind |
| loess | a fine-grained unstratified accumulation of clay and silt deposited by the wind |
| glacier | a large ice mass that moves slowly down a mountain or over land |
| iceberg | a large floating mass of ice, detached from a glacier and carried out to sea. |
| crevasse | A deep crack or fissure in the ice of a glacier. |
| glacier drift | the rock material carried and deposited by glaciers |
| stratified drift | rock material that has been sorted and deposited in layers by water flowing from the melted ice of a glacier |
| till | the mixture of sediments that a glacier deposits directly on the surface |
| mass movement | the downhill movement of rock and soil because of gravity |
| rock fall | a group of loose rocks that fall down a steep slope |
| landslide | a slide of a large mass of dirt and rock down a mountain or cliff |
| mudflow | The rapid downhill movement of a mixture of water, rock, and soil. |
| creep | the very slow downhill movement of rock and soil. |
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