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Coasts (Stump Formation (hydraulic action hits cliff side, faults are…
Coasts
Stump Formation
hydraulic action hits cliff side
faults are formed
parts of cliff gets taken away
cave is formed
waves keep hitting back of the cave
arch is formed
top is effected by weathering
top falls down
stack is formed
waves hit it causing a wave cut notch
top of stack falls down
stump is formed
Coral Reefs
threats
hurricanes
oil leakage
fishing
global warming
swiming
ports
tourism
dumping
weather
stops erosion
north-east Austrailia
equator
home to 25% of fish
creates habitat for life
warm shallow waters
medicines
shelter
food
Spit Formation
swash at an angle back wash at a right angle to the beach
long shore drift (direction)
change in shape of land
spit is formed
salt marsh behind spit
change of wind direction
river estuary
prevailing wind
Key Terms
fetch
the distance the wave travels
swash
rush of wave up the beach
backwash
rush of wave down the beach
crest
top of the wave
friction
resistance between wave and sea bed
Erosion
marine erosion
the wearing away of rocks by the action of the sea
hydraulic action
the sheer weight and force of the water breaking the cliff face where there are weaknesses
attition
where the rocks collide to break each other up
abrasion
where rocks carried by the waves act like sandpaper to wear the cliff surface away
the action where the cliff is wearing away and being taken away by water or the sea
Old Harry
in Dorset
chalk headland
started underwater
showed in the ice-age
located between two bays
Weathering
the breaking down of rocks by the action of the weather or plants
corrosion
a chemical reaction between the sea and some rock types
the action where the cliff is breaking away because of the weather