Geography
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
Cliff line
Geography
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
 Tom Abbott, Biddulph High School and made available through
www.sln.org.uk/geography and only for non commercial use in schools
Wave cut
notch
Groynes
Sediment accumulation
due to Longshore Drift
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
Geography
Geography
Wave-cut platform
Wave built terrace
Ouch!
large angular rocks
rocks and pebbles
 Tom Abbott, Biddulph High School and made available through
www.sln.org.uk/geography and only for non commercial use in schools
soft sand
Geography
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
Spilling Breaker
 Tom Abbott, Biddulph High School and made available through
www.sln.org.uk/geography and only for non commercial use in schools
Geography
Constructive Waves
Crashing breaker
 Tom Abbott, Biddulph High School and made available through
www.sln.org.uk/geography and only for non commercial use in schools
Geography