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Coastlines, Swash_Lano_Beach_Samoa, Characteristics-Of-A-Wave, picture8,…

- - - - 1 - A crack is formed (Hydraulic action)
      - 2 - Crack forms into a cave (Hydraulic action)
      - 3 - Cave forms into an arch (Further erosion - Hydraulic action?)
      - 4 - Arch is then destroyed and a stack is left separated from the rest of the land (Gravity + erosion)
      - 5 - Stack is then eroded down to form a stump (Gravity + erosion)
- - - - Bars
        
        When a spit joins two headlands together, forming a lagoon behind it, it forms a bar. Longshore drift further expands the bar as more sediment is deposited.
      - Spits
        
        Longshore drift transports sediment down the beach, depositing it when there is a sudden change in shape of the coastline. This forms a spit. Sediment continues to be transported past the bend, causing more to be deposited, increasing the length of the spit. The sheltered area of the spit is protected from the waves, causing a loss of energy in the waves. This can sometimes form salt marshes and mudflats behind the spit, attracting lots of vegetation and wildlife. Strong winds and waves also cause the end of the spit to curve, forming a recurved end.
      - Tombolo
        
        Formed when a spit joins an island. Longshore drift is still relevant, as deposition continues to increase the size of the tombolo.