Spits and Bars
- Created by: Jenny Jones
- Created on: 21-04-14 11:28
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- Spits and Bars
- formed by longshore drift
- Spits
- 1) form at sharp bends in coastline e.g river mouth
- 2) LD transports sand + shingle past bend and deposits in sea
- 3) strong winds and waves curve end of spit (forms recurved end)
- 4) sheltered area behind spit is protected from waves
- material gathers in area, plants can grow there
- 5) over time sheltered area becomes mud flat or salt marsh
- Bars
- 1) formed when spit joins two headlands together
- 2) bar cuts off bay between headlands from the sea
- 3) means a lagoon can form behind bar
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