Term
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Definition
| It is the process that wears away surface materials and moves them from one location to another |
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Term
| What is the final stage of an erosional process? |
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Definition
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Term
| What are the four major agents of erosion? |
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Definition
| Wind, gravity, water, and glaciers, move only when there is energy of motion. All drop load of sediments when energy of motion decreases |
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Term
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Definition
| Gravity alone causes material down slope |
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Term
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Definition
| A type of mass movement in which one large mass of loose material or rock layers move downhill, leaving a curved scar(curved scar where eroded material once was located) |
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Term
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Definition
| A type of mass movement in which sediments move down a hill slowly, sometimes causing posts and trees to lean(leaning fencepost) |
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Term
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Definition
| Happen when large blocks of rock break loose from a steep slope and start tumbling. As they fall, they crash into other rocks and knock them loose. (Beware of falling rock) |
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Term
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Definition
| A thick mixture of sediments and water flowing down a slope and forms a cone shaped deposit(cone shaped deposit) |
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Term
| Similarities of all mass movements |
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Definition
| Likely to happen on steep slopes, depend of gravity, occur more likely heavy rain adds mass and lubricates area, and also start from the top of slope and deposit downslope |
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Term
| Ways to reduce steep slope erosions |
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Definition
1. Terrace- broad, step-like cuts on the side of a slope, slows down water energy
2. Retaining walls- keep rock and soil from sliding downhill
3. Planting vegetation- plants roots hold soil in place and absorb large amounts of water |
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Term
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Definition
| Mass of snow and ice moving slowly downhill due to weight and is the most powerful erosion agent. Continental and valley |
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Term
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Definition
| Glacial erosion where rock fragmentas are loosened, broke off, and carried away by freezing water in rock cracks |
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Term
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Definition
| Mixture of boulders, sand, silt, and clay deposited by a glacier |
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Term
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Definition
| Stratified material washed our from glacier by meltwater |
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Term
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Definition
| ridge of unsorted rock bulldozed ahead and to sides of glacier, left behind when glacier melts |
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Term
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Definition
| Deep parallel scars on rocks |
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Definition
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Term
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Definition
| Mountain pinnacle formed by glacial action in three or more cirques |
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