bar

• a bar is an example of deposition
• bar

  a ridge of sand or shingle that stretches from one side of a bay to the other, forming a lagoon behind it
• example of a bar

  Slapton Ley, Devon
• characteristics of a bar

  • longshore drift is actively moving sediment
  • a ridge connects two headlands, cutting off the bay
  • a lagoon forms behind it
• stage 1

  prevailing winds bring waves in at an angle
• stage 2

  material is moved up the beach at an angle and brought straight back down due to gravity -longshore drift
• stage 3

  a bar is formed as the material builds up across the bay and joins the two headlands either side of the bay
• stage 4

  a lagoon is formed behind the bar, overtime sand will fill it in
• what is this an image of

  a bar

  
• label the diagram

  gangman

  A)

  B) longshore drift

  C) lagoon