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Weathering/Erosion
Erosion and Deposition:Mass, Movement, and Glaciers, Neumeyer 6
Term | Definition |
---|---|
Erosion | The process in which natural forces move weathered rock and soil from one place to another |
Sediment | Weathered rock and soil |
Deposition | The laying or settling down of eroded material |
Mass Wasting | Downhill movement of a large mass of rocks or soil because of the pull of gravity |
Glacier | A large mass of ice that formed on land and moves slowly across Earth's surface |
Continental Glacier | Ice sheet that covers large areas of land that moves outward from central location; exists today in Greenland and Antartica |
Valley Glacier | A long, narrow glacier that forms when snow and ice build up high on a mountain valley |
Plucking | When a glacier flows over land, picking up rocks and large boulders and dragging them across the land causing abrasion |
Abrasion | Gouges or scratches in bedrock |
Till | A mixture of sediment that is deposited directly on the surface |
Moraine | A ridge formed from till deposited at the edge of glaciers |
Kettle | A small depression that forms when a chunk of ice is left in a till, then it eventually melts |