Weathering and soil Weathering and soil <ul><li>Earth’s external processes - weathering </li></ul><ul><ul><li>Mechanical <...
 
Mechanical weathering – frost wedging Weathering and soil
Mechanical weathering – frost wedging Weathering and soil
Mechanical weathering – talus slopes Weathering and soil
 
 
 
 
Mechanical weathering – unloading (sheeting) Weathering and soil
Mechanical weathering  – unloading (exfoliation domes) Weathering and soil
Mechanical weathering  – unloading (exfoliation domes) Weathering and soil
Mechanical weathering  – thermal expansion Weathering and soil
Root wedging
 
 
Chemical weathering  – dissolution Weathering and soil
Chemical weathering  – dissolution Weathering and soil
 
Chemical weathering  – oxidation Weathering and soil
Chemical weathering  – acid mine drainage Weathering and soil
Chemical weathering  – spheroidal weathering Weathering and soil
 
Rates of weathering – differential weathering Weathering and soil
 
Soil – regolith (mass of uncompacted sediments) Weathering and soil
Soil - humus Weathering and soil
Soil – formation and composition Weathering and soil
Soil – formation and composition Weathering and soil
Soil – parent material Weathering and soil
Soil – parent material (residual soil) Weathering and soil
Soil – soil profile The E horizon is inserted here.
Soil – eluviation and leaching Weathering and soil C and R may be treated as one layer (Known as Bedrock). The E horizon i...
Soil – soil taxonomy Weathering and soil
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Weathering and soil

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Weathering and soil

  1. 1. Weathering and soil Weathering and soil <ul><li>Earth’s external processes - weathering </li></ul><ul><ul><li>Mechanical </li></ul></ul><ul><ul><ul><li>frost wedging </li></ul></ul></ul><ul><ul><ul><li>unloading </li></ul></ul></ul><ul><ul><ul><li>thermal expansion </li></ul></ul></ul><ul><ul><ul><li>root wedging </li></ul></ul></ul><ul><ul><li>Chemical </li></ul></ul><ul><ul><ul><li>dissolution </li></ul></ul></ul><ul><ul><ul><li>oxidation </li></ul></ul></ul><ul><ul><ul><li>hydrolysis </li></ul></ul></ul>
  2. 3. Mechanical weathering – frost wedging Weathering and soil
  3. 4. Mechanical weathering – frost wedging Weathering and soil
  4. 5. Mechanical weathering – talus slopes Weathering and soil
  5. 10. Mechanical weathering – unloading (sheeting) Weathering and soil
  6. 11. Mechanical weathering – unloading (exfoliation domes) Weathering and soil
  7. 12. Mechanical weathering – unloading (exfoliation domes) Weathering and soil
  8. 13. Mechanical weathering – thermal expansion Weathering and soil
  9. 14. Root wedging
  10. 17. Chemical weathering – dissolution Weathering and soil
  11. 18. Chemical weathering – dissolution Weathering and soil
  12. 20. Chemical weathering – oxidation Weathering and soil
  13. 21. Chemical weathering – acid mine drainage Weathering and soil
  14. 22. Chemical weathering – spheroidal weathering Weathering and soil
  15. 24. Rates of weathering – differential weathering Weathering and soil
  16. 26. Soil – regolith (mass of uncompacted sediments) Weathering and soil
  17. 27. Soil - humus Weathering and soil
  18. 28. Soil – formation and composition Weathering and soil
  19. 29. Soil – formation and composition Weathering and soil
  20. 30. Soil – parent material Weathering and soil
  21. 31. Soil – parent material (residual soil) Weathering and soil
  22. 32. Soil – soil profile The E horizon is inserted here.
  23. 33. Soil – eluviation and leaching Weathering and soil C and R may be treated as one layer (Known as Bedrock). The E horizon is inserted here.
  24. 34. Soil – soil taxonomy Weathering and soil

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