Chemical Weathering and Soil Development
Chemical Weathering and Soil Development
Chemical Weathering and Soil Development
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Summary<br />
• <strong>Weathering</strong> is a prerequisite for soil formation<br />
• Types of weathering<br />
–Physical<br />
– <strong>Chemical</strong>: Hydrolysis, Oxidation, Reduction, Hydration, Carbonation,<br />
Chelation/Complexation, Solution<br />
– Biological<br />
• Factors<br />
– Climate: Temperature, Precipitation<br />
–pH<br />
– Mineral structure<br />
– Formation conditions<br />
– <strong>Chemical</strong> composition<br />
• <strong>Weathering</strong> rates vary between years <strong>and</strong> billions of years
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