Cliffs and wave cut platforms
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Cliffs and wave cut platforms

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Cliffs and wave cut platforms Cliffs and wave cut platforms Presentation Transcript

  • Describe how a landform may change over timeIt is important to know not just what landforms are made but how they are made.Model AnswerEven in resistant rock there are cracks and weaknesses. The process of hydraulic action forces air into these cracks which causes them to widen into a wave cut notch. Over time this forms a cave.
  • Cliffs are steep rock faces along the coastline, they formalong coastlines with resistant harder rocks such as chalk
  • Wave-cut platforms are rocky ledges on the beach left behind after a cliff collapses. They become smooth over time with erosion.
  • Last line of Defencehttp://www.ifever.org.uk/camera/ Start from 5 mins in How far do you think the flags will erode?
  • This diagram shows how a cliff retreats and wave cut platforms are made.
  • Identifying LandformsThe exam board requires you to be able to interpret maps. Look at your map of the south coast on the next slide. Can you identify the following things?• A headland• A bay• Two arches• Two stacks/stumps