Sand spit

• Spits form where there is a change in direction on a coastline allowing for a sheltered area for deposition.
• Explain long shore drift after making first point about change in coastline direction.
• As long shore drift continues, material slowly builds up to appear above water at the sheltered area of coastline.
• The spit continues to grow as long as the supply of deposits (constructive waves) is greater than the amount of erosion (destructive waves).
• The shape on the end of the spit may become hooked or curved due to changes in wind direction/currents.
• A salt marsh may form in the sheltered area behind a sand spit.
• Sand Spit example: Spurn point