Deposition at the coast

• Spit

  1. Sediment is carried by longshore-drift
  2. When there is a change in the shape of the coastline, deposition occurs. A long thin ridge of material is deposited.
  3. A hooked end can form if there is a change in wind direction
  4. Waves cannot get past a spit, therefore the water behind a spit is very sheltered
• Bars

  Sometimes a spit can form a bar, this joins two headlands together. They trap shallow lakes behind the bar, these are known as lagoons