UK Landscapes

  • Created by: CallumD2
  • Created on: 28-08-18 13:35
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  • UK Landscapes
    • Types of Erosion
      • Attrition - Rocks that bash together to become smoother and smaller.
      • Solution - A chemical reaction that dissolves rocks.
      • Abrasion - Rocks hurled at the base of a cliff to break pieces apart
      • Hydraulic Action -  Water enters cracks in the cliff causing the crack to expand.
    • Types of weathering
      • Carbonation - Breakdown of rock by changing its chemical composition.
      • Mechanical - Breakdown of rock without changing its chemical composition.
    • Types of Transportation
      • Solution - Minerals dissolve in water and are carried along.
      • Suspension - Sediment is carried along in the flow of water.
      • Saltation - Pebbles that bounce along the bed of the sea or river.
      • Traction - Boulders that roll along a  sea / river bed by the force of the flowing water.
    • Types of Waves
      • Destructive Waves - This wave has a backwash that is stronger than the swash therefore it erodes the coast.
      • Constructive Waves - This wave has a swash that is stronger than the backwash therefore it builds up the coast.
    • Formation of a Coastal Stack
      • 1. Hydraulic Action widens cracks in the cliff face.
      • 2. Abrasion forms a wave cut notch between High Tide and Low Tide.
      • 3. Further abrasion widens the notch to form a cave.
      • 4. Caves from both sides of the cliff break through to form an arch.
      • 5. Weather above / erosion below collapses the arch leaving a stack.
      • 6. Further weathering and erosion leaves a stump.
    • How do waves form?
      • Waves are created by the wind blowing over the surface of the sea. As the wind blows over , friction is created - producing a swell in the water.


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