Types of weathering.

Chemical, biological and physical

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  • Weathering
    • Chemical waethering
      • Carbonation
        • Reaction between carbonic acid and minerals
      • Hydrolysis
        • Reaction between minerals and water causing mineral decomposition
    • Mechanical weathering
      • Exfoliation
        • Sheets of rock split off due to differential expansion and contraction of minerals
      • Frost shattering
        • The expansion of freezing water in fractures which forces rocks apart
      • Pressure release
        • Expansion and fracturing of rock due to removal of overlying rocks
    • Biological weathering
      • Root action
        • The wedging action of plant roots
      • Burrowing
        • Animal activity brings rock material from shallow depths to the surface


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