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  • 1. Landscape Folding
  • 2. What is folding?
    • Folding is the process whereby two plates collide with each other where some of the layers of rock which make up the crust buckle and form folds.
    • Basically two types of fold
      • Anticline
      • Syncline
  • 3. Anticline
    • Happens when the layers of rocks buckle upwards to look like an inverted ‘U’
  • 4.  
  • 5. Syncline
    • Happens when layers of rock buckle downwards to look like a “U”
  • 6.  
  • 7. Types of folds
    • Symmetrical fold/simple fold
    • Asymmetrical fold
    • Overfold/Overturned fold
    • Recumbent fold
    • Overthrust fold
  • 8. Anticline and Syncline
  • 9. Symmetrical fold
    • A fold where both limbs are equal in steepness because compression from opposite sides is equal.
  • 10. Asymmetrical fold
    • Happens when one limb is steeper, because compression is greater from one side than the other.
  • 11. Overfold / Overturned Fold
    • Happens when one fold is pushed over the other limb due to increasing compression
    • Both limbs are sloping in the same direction.
  • 12. Recumbent Fold
    • Happens when limbs are nearly parallel to each other.
    • Axis is almost horizontal
  • 13. Overthrust Fold
    • Extremely powerful compressional forces which causes recumbent fold to fracture
    • Upper part of the recumbent fold thrust forward along the plane of fracture
  • 14. Different folds Symmetrical fold Asymmetrical fold Overfold Recumbent fold
  • 15. Resultant landforms
    • Fold Mountains.
    • How are fold mountains formed?