spit

• a spit is an example of deposition
• spit

  a sand or shingle beach that is joined to the land but extends into the sea. forms where the coast changes direction/ shape or at the mouth of an estuary
• example of where spits are found

  sandbanks spit in Dorset
• characteristics of a spit

  • narrow beach extending out from the end of a mainland
  • a hook at the end that may be recurved several times
  • mudflats and salt marshes behind the spit
• what is this a picture of?

  spit

  
• 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 moving material in a zig zag - longshore drift
• stage 3

  coastline changes direction
• stage 4

  material is deposited in shallow, calm water near the coast creating a spit
• stage 5

  if the wind direction changes, so too will LSD, leading to a curve in the spit called a hook
• stage 6

  wind will blow sand across the spit creating mudflats and saltmarshes behind the spit
• stage 7

  the mouth of a river or estuary will prevent the spit from extending all the way across
• label the diagram

  bruh

  A) longshore drift

  B) material deposited in calm water

  C) spit curved with wind direction change

  D) salt marsh in sheltered area