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Old cliff line. Original Land surface. stack. stump. Natural Arch. Wave-cut platform. 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. Sediment accumulation

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PowerPoint Slideshow about 'Original Land surface' - latham


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Presentation Transcript
slide1

Old cliff

line

Original Land surface

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

slide2

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

slide3

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

slide4

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

slide5

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

slide6

Constructive Waves

Spilling Breaker

Powerful Swash

Weak Backwash

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

slide7

Constructive Waves

Crashing breaker

Weak swash

Powerful Backwash

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools

slide8

This powerpoint was kindly donated to www.worldofteaching.com

http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

 Tom Abbott, Biddulph High School and made available through www.sln.org.uk/geography and only for non commercial use in schools