Original Land surface Old cliff line stack stump Natural Arch

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Presentation transcript:

Original Land surface Old cliff line stack stump Natural Arch Wave-cut platform  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

waves to attack the cliff Cliff line Joints and beds allow waves to attack the cliff more easily HIGH TIDE LEVEL Waves can use rocks to erode the cliff Wave cut platform Wave cut notch  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

Waves approach beach at oblique angle Sediment accumulation due to Longshore Drift Groynes Waves approach beach at oblique angle  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

Wave-cut platform Wave built terrace Ouch! large angular rocks rocks and pebbles soft sand  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

The force of the waves pushes air into cracks in the rock The compressed air exerts enormous pressure at the tip of the crack. As the water falls back the air pressure is released and rock is pulled out from the crack further enlarging the hole.  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

Constructive Waves Powerful Swash Spilling Breaker Weak Backwash  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

Constructive Waves Powerful Backwash Crashing breaker Weak swash  Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools