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Chapter 7 ES
Term | Definition |
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Weathering - | chemical or mechanical process that breaks down and changes rocks on or near Earth's surface and whose rate is influenced by factors such as precipitation and temperature. |
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 of oxygen with other substance. |
erosion - | removal and transport of weathered materials from locations to another by agents such as water wind glaciers and gravity. |
deposition - | occurs when eroded materials are dropped in another location. |
rill erosion - | erosion in which water running down the side of a slope carves a small stream channel. |
gully erosion - | erosion that occurs when a rill channel widens and deepens. |