GCSE geography coastal erosion

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Coastal erosion:

The 4 main types of erosion:

  • Abrasion - The breaking waves scoops up stones and hurls them at the cliffs
  • Hydraulic action - The pressure exerted by breaking waves traps and compresses in cracks
  • Solution - Some rocks have a chemical composition which salt and water can dissolve
  • Attrition - The waves swirl rock fragments about and as they collide they wear down the cliffs

(http://whyfiles.org/091beach/images/erosiondia1.gif)

What can effect the rate of erosion:

  • The type of rock
  • The

Comments

hiuu billy

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Is this AQA?

Holly Pearson

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nope OCR :\ x

hiuu billy

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Oh right, I thought I hadn't done some of it d:.

But the parts we have done are good :).

Hollie Compton

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this is really useful hollz :P ty **