Term
| Occurs when physical forces break rock into smaller and smaller pieces without changing the rock's mineral composition. |
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| The mechanical breakup of rock caused by the expansion of freezing water in cracks and crevices. |
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| Reduced pressure on igneous rock causes it to expand and allows slabs of outer rock to break off in layers in a process called exfoliation. |
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| The activity of organisms, including plants, burrowing animals, and humans, can also cause mechanical weathering. |
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Term
| The transformation of rock into one or more new compounds. |
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Term
| Produces clay minerals, solube salt, and silica in solution. |
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Definition
| Weathering of Potassium Feldspar |
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Term
| Causes the corners and edges of rock to be more rounded. |
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| What two other factors affect the rate of weathering? |
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| Rock Characteristics & Climate |
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Term
-Mineral composition and solubility.
-Physical features such as joints. |
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-Temperature and moisture are the most crucial factors.
-Chemical weathering is most effective in areas with high temperatures and abundant moisture. |
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-Caused by variations in composition.
-Creates unusual and spectacular rock formations and landforms. |
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