Term
| Two Processes of Sedimentary Rocks |
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Definition
1. Weathering of pre-existing rocks at the Earth's Surface
2. Percipitation of chemical compounds |
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Term
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Definition
Mechanical or Physical Weathering
Chemical Weathering |
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Term
| Mechanical or Physical Weathering |
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Definition
| Physical process that breaks large rocks into smaller fragments |
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Term
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Definition
| Chemical processes that breakdown rocks by dissolving some minerals within the rock |
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Term
Types of Mechanical Weathering |
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Definition
| Frost Action, Pressure Release, Growth in Salt Crystals, Thermal Expansion, and Biotic Weathering |
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Term
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Definition
Frost Wedging- pre-existent crack-can split rocks
Frost Heaving |
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Term
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Definition
Exfoliation
Exfoliation Dome Formation |
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Term
| Types of Chemical Weathering |
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Definition
| Dissolution, Hydrolysis, Oxidation |
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Term
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Definition
| chemical Bonds break between atoms and molecules then disperse in water |
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Term
| Water is Universal Solvent |
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Definition
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Term
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Definition
| Substances react with atmospheric oxygen to form new substances by exchanging electrons |
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Term
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Definition
Occurs when hydrogen ions replace positive ions in minerals
This alters the composition of the mineral by producing soluble substances and/or iron which can be oxidized |
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Term
| Making Sediments and Chemical Weathering |
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Definition
| Dissolution, Hydrolysis, Oxidation |
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Term
| Factors Which influence the rate of weathering |
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Definition
Climate: temperature and moisture
Extent of exposed surface area
Parent material |
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