3 Weathering And Erosion

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3 Weathering And Erosion

  1. 1. Weathering Key process that shapes the landscape
  2. 2. What is Weathering? <ul><li>Weathering is the break down of rock in-situ. </li></ul><ul><li>There are 4 main types of weathering; freeze-thaw, onion-skin, biological and chemical weathering. </li></ul>
  3. 3. Freeze Thaw Weathering
  4. 4. Freeze Thaw
  5. 5. Onion Skin Weathering
  6. 6. Exfoliation or Onion Weathering
  7. 7. Biological Weathering
  8. 8. Plant Roots
  9. 9. Chemical Weathering
  10. 10. Water <ul><li>Water weathers rock by dissolving it </li></ul>
  11. 11. Weathered Environments Weathering contributes significantly to the formation of many different environments including coasts, but other processes are also significant.
  12. 12. Erosion, Transportation and Deposition <ul><li>Weathering breaks up and weakens rock, erosion wears away and removes the loosened material. </li></ul><ul><li>Rivers, ice, the sea and the wind are all significant causes of erosion. </li></ul><ul><li>Erosion does not operate on its own, erosion wears the land away, transportation removes the eroded material and deposition build new landforms. </li></ul>

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