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Page 1

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Depositional Landforms
Beaches

Beaches are a common feature of a coastline.
Beaches are made up of eroded material that has been transported from elsewhere and deposited by the sea.
Constructive waves help to build up beaches.
The material found on a beach varies in size and type as you move…

Page 2

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Solution Minerals are dissolved in sea water and carried in solution. The load is not visible. Load can come from cliffs made from chalk or
limestone, and calcium carbonate is carried along in solution.

Suspensio Small particles are carried in water, eg silts and clays, which can make the water…

Page 3

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4. The backwash carries the rubble towards sea forming a wave-cut platform.
5. The process repeats and the cliff continues to retreat.




Headlands and bays
Headlands are formed when the sea attacks a section of coast with alternating bands of hard and soft rock.
The bands of soft rock, such…

Page 4

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A concordant coastline has the same type of rock along its length. Concordant coastlines tend to have fewer bays




and headlands.




Discordant and concordant coasts in Dorset
Along the coastline of the Isle of Purbeck in Dorset, there are both discordant and concordant coastlines.
The discordant coastline has been formed…

Page 5

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If the cave is formed in a headland, it may eventually break through to the
other side forming an arch.
The arch will gradually become bigger until it can no longer support the top of the arch. When the arch collapses,
it leaves the headland on one side and a…

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Hard engineering solutions


Type of defence Pros and cons

Building a sea wall What is it?
A wall built on the edge of the coastline. Concrete or rock barrier to the sea placed at the foot of cliffs or at the top of
a beach. Has a curved face to…

Page 7

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Beach management
This replaces beach or cliff material that has been removed by erosion or longshore drift and it also makes the
beach higher or broade, and the replaced material blend in with the existing beach materials.
The main advantage is that beaches are a natural defence against erosion and…

Page 8

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Sand
Sand beaches are flat and wide-sand particles are small and the weak backwash can move them back down the
beach, creating a long, gentle slope, like in Filey.

Comments

Mr A Gibson

You absolutely need this in your folder! It is really useful because it is accurate, well presented, clear and easy to understand. Get this printed out and start revising from it.

Big Daddy Harley

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