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Chapter 7
Term | Definition |
---|---|
Weathering | Short term variations in atmosphere phenomena that interact and affect the environment and life on Earth. |
Mechanical Weathering | process that breaks down rocks and minerals into smaller pieces but does not involve any change in their composition. |
Frost Wedging | Mechanical weathering process that occurs when water repeatedly freezes and thaws in the cracks of rocks, often resulting in rocks splitting. |
Exfoliation | Mechanical weathering process in which outer rock layers are stripped away, often resulting in dome-shaped formations. |
Chemical Weathering | process by which rocks and minerals undergo changes in their composition due to chemical reactions with agents such as acids, water, oxygen, and carbon dioxide. |
Oxidation | Chemical reaction with oxygen and other substances. |
Deposition | Occurs when eroded materials are dropped in another location. |
Erosion | Removal and transport of weathered materials from one location to another by agents such as water, wind, glaciers, and gravity. |
Gully Erosion | Erosion that occurs when a rill channel widens and deepens. |
Rill Erosion | Erosion in which water running down the side of a slope carves a small stream channel. |