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Weathering

Weathering . Red Book Chapter 11 Section 1 . Weathering. A mechanical or chemical surface process that breaks rock into smaller pieces. Chemical Mechanical. Mechanical Weathering. ICE WEDGING Freezing and thawing cycle of water 1. Water seeps into cracks 2. Water freezes and expands

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Weathering

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  1. Weathering Red Book Chapter 11 Section 1

  2. Weathering • A mechanical or chemical surface process that breaks rock into smaller pieces. ChemicalMechanical

  3. Mechanical Weathering ICE WEDGING • Freezing and thawing cycle of water 1. Water seeps into cracks 2. Water freezes and expands 3. Ice melts *

  4. Mechanical Weathering LIVING ORGANISMS • Plants- • Animals-

  5. Chemical Weathering Natural Acids Carbonic Acids-Water and carbon dioxide in the air or soil-carbonic acid forms (dissolves rock) * Plant Acids (tannic acid)-plant roots produce acid (dissolves, weakens, and discolors rock) *

  6. Chemical Weathering Oxygen (oxidation) Iron-

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