Please enable JavaScript.
Coggle requires JavaScript to display documents.
:beach_with_umbrella: :sparkles:COASTS :sparkles::beach_with_umbrella:,…
:beach_with_umbrella: :sparkles:COASTS :sparkles::beach_with_umbrella:
Coasts and us
owned by
Ministry of Defence -> 3%
Privately owned -> 20%
Local councils
State -> 55%
resources
Landforms
Wave-cut platforms
waves cut notches in cliffs
the rock above them collapses and is carried away by the sea
process continues
Caves, arches and stacks
sea attacks cracks in a cliff
cave
found in headlands
cave gets eroded
arch
arch collapses
stack
waves erode stack
stump
Tides
the rise and fall of the sea (caused by the moon)
tidal range
the land along the sea
Fun Facts
the world's largest coast line belongs to Canada
there are seven types of coasts in the world
for example the volcano and coral reef coasts
storms protect inland areas from the fury of storms
sand dunes play a vital role in stabilizing coasts
weather is extremely unpredictable
have a unique heritage and culture
Unique Coasts
pink sand beach
diamond beach (Iceland)
skeleton coast
Vaadhoo Islands (Maldives)
Glass beach
bowling ball beach
Sculptors at work!
hard rock
erodes slowly
headland (juts out)
eroded material is carried away by longshore drift
some of it is deposited
beach
headlands form sheltered bay
interrupts lonshore drift
salt and shingle deposit
spit
end of it is curved by waves
silt and mud build up in this area
1 more item...
soft rock
erodes quicker
bay
Waves
When they reach the coast:
turbulent water
water rolling back
Backwash
water rushing on the sand
Uprush
called
Swash
:
caused by wind dragging on the surface of the water
length of water the wind blows
Fetch
waves at work
Transport
the rests of erosion carried by water and waves
Deposit
the rests after being eroded form beaches
Erosion
hydraulic action, solution, abrasion, attrition
