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6besweathering
Question | Answer |
---|---|
Mechanical weathering | -works best in cold climates -actual break-up of rock |
Ice Wedging | -water freezes in crack and expands -Acts like wedge -Most common in mountainous areas |
Exfoliation | -Rock heats expands -Rock cools contracts -causes surface to peel -best in deserts |
Thermal shock | Type of exfoliation in super-quick temperature changes |
Tree Roots | -Grows in crack and breaks it |
Abrasion | Wind and water round out rocks |
Chemical Weathering | -change in composition -best in hot climates |
Carbonation | -Attacks calcite and limestone -Creates sinkholes and caves - |
Oxidation | -Oxygen produces rust |
Hydrolisis | Water softens minerals |