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14 Cards in this Set
- Front
- Back
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Weathering chain of events |
Erosion, transportation, deposition |
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Mass wasting |
Movement of debris due to only gravity |
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Physical weathering types |
Unloading (pressure differences in the rock and at the surface), freeze/thaw, salt crystal growth, biotic |
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Chemical weathering definition |
Chemical reactions b/t rocks and environment |
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Chemical weathering types |
Oxidation, solutions, carbonation, hydrolosis, thermal expansion/contractions |
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Chemical weathering usually takes place in.... |
Warm and wet places |
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Physical weathering usually takes place in... |
Cold and dry places |
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Creep |
Caused by heating and cooling of soil, moves rocks very slowly. Most common form. |
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Solifluction |
Soil flow. Slow dowmnslope movement of soil or regolith. Makes waves. |
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Falls |
Materials quickly falling through the air. Form a pile called a scree or talus. |
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Avalanches |
Powerful wave of powdered material quickly sliding downhill. Often caused by rockfalls or snowfalls. |
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Slides |
Cohesive rock or soil making continuous contact with the slope as ot slides straight down. Usually caused by water. |
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Slumps |
Like slides, dislodged material follows a curved path. Usually in humid areas. Top part is more vertical. |
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Flows |
Rock/mud debris saturated with water. Like slides, but the material mixes while moving downwards. Can be caused by flooding water pouring downhill. If caused by volcanoes, called Lahar. |
