coast formations

coast formations

1. RIDGE:

   • It is a feature of a beach where different waves high-tide lines and storm tides.Some beaches may have several berms each one representing a different high-tide level.

2. ETD:

   • Erosion
     • Transportation
       • Deposition

3. Spits:

   • A spit is a long,narrow finger of sand jutting out into the sea from the land.Sediments are usually transported along the coast by the process of longshore drift where then it becomes deposited at a point where the coastline changes direction or where a river mouth is found.The more sediments deposited,it slowly starts to form a spit away from the coast line.

4. BAR:

   • A bar is formed as a spit grow across a bay joining up two headlands.
     • Bar is formed when 2 headlands are close and the longshore deposits material - small sediments gradually form a bar. This then makes a lagoon.
   • LAGOONS:
     • Area of water dammed by the bar-this will gradually be in filled by deposition.

5. TOMBOH:

   • This forms when a mainland is connected to an island. At times of high tide the connecting area of land maybe submereged/covered up