Tombolo
A depositional landform created when sediment accumulates in the low-energy zone behind an island or rock, building a ridge that eventually connects the feature to the shore.
Real World
Chesil Beach forms a tombolo connecting the Isle of Portland to the Dorset mainland; wave refraction around Portland Bill creates the low-energy zone in which the connecting shingle ridge has accumulated over thousands of years.
Exam Focus
Always explain wave refraction around the island as the mechanism — simply stating 'sediment builds up' will not access higher mark bands.
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