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17 Cards in this Set
- Front
- Back
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Angle of repose |
steepest angle loose sediment can sit at before gravity moves it |
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rockfalls |
rocks falling |
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slides |
rock layer prone to sliding, breaks off and slides down mountain. |
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debris flow |
flow of sediment and water that will destroy what is in its path |
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slump |
erosion at base of slope causes unstable cliff to slide off and down. usually has a fracture or crack preceding it curved scar at top usually. |
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landslides |
rock avalanche massive rock fall keeps moving and picking up sediment with it |
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Hillside creep |
hilll creeping downwards, slowest mass movement, curved tree trunks show this is happening |
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Mass movement control |
Walls, wire cages, sloped land with build in terraces |
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Swash |
Water that goes flying up beach when wave hits |
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Backwash |
Water that re enters ocean after wave hits shore |
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Which layers are older in rocks? |
Darker layers |
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Washovers |
Waves so big the water washes over into the barrier islands |
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Inlet |
Gap in barrier beach |
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Groin |
Stops longshore current, makes beach larger on oneside |
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Updrift side |
Has extra sand |
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Breakwater |
Wall in the water that stops waves and causes sand to pile up |
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Seawall |
Walls that block waves. |
