Coastal Landforms: Erosional and Depositional

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Presentation transcript:

Coastal Landforms: Erosional and Depositional Coasts Erosional Landforms

Lesson Objectives Describe a range of erosion coastal landforms Headlands and bays Cliffs, wave cut platforms, notches Caves, arches, stacks and stumps Explain how these landforms are formed by physical processes

Complete the Coastal Change Mind Map Activity. Starter Activity Complete the Coastal Change Mind Map Activity. 5 MINUTES

Dorset coastline

Landforms of coastal erosion 1) Headlands and Bays 2) Cliffs and Wave Cut Platforms 3) Caves, Arches, Stacks and Stumps

Swanage Bay An example of headlands and bays on the Dorset coastline.

Headlands and bays

How are cliffs and wave-cut platforms formed?

Wave-cut platform Task1 The waves attack the base of the cliff through the processes of abrasion, corrosion, hydraulic action and attrition. Over time the cliff will be undercut and a wave-cut notch is formed. Eventually the cliff becomes unstable and collapses. Further cliff retreat will form a wave-cut platform. Word Bank attack base corrosion attrition undercut wave-cut notch unstable retreat wave-cut platform

How are caves, arches, stacks and stumps formed?

Caves, arches, stacks and stumps

The formation of caves, arches, stacks and stumps Task 2