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Landforms - Coggle Diagram
Landforms
Caves, arches, stacks and stumps
weakness formed in headland from waves refracting
crack gets bigger and bigger due to hydraulic action and abrasion
Cave forms in headland
cave gets deeper and deeper to repeated hydraulic action and abrasion
Cave breaks through and forms an archway
Waves refract around archway slowly eroding it
Archway breaks off into stack
base of stack is eroded and turns into a stump
sand dunes
contructive waves carry sand onto beach
prevailing wind pushes sand up the beach
sand gathers over an obstacle
overtime the sand builds up into a dune
vegetation grows on the dune making it more stable
spit
waves approach shore at an angle due to prevailing wind
longshore drift causes sediment to move along coast
sediment is deposited when the coastline changes direction or slows down
overtime sediemnt extends ito the water and forms a spit
spit curves due to change in wave direction
lagoon forms behind the spit where saltwater tolerant plants grow
bays and headlands
Wave cut platforms