Coastal Landforms Caused By Depostion

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Beaches are formed by?
Depostion
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Beaches are found?
On coasts between the high water mark and low water mark
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How are they formed?
By constructive waves depositing material such as sand and shingle
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What is the difference between sand and shingle beaches?
characteristics
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How do sand beaches look like?
flat and wide
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Because?
sand particles are small and the weak backwash can move them back down the beach creating a long, gentle slope
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How do shingle beaches look like?
Steep and narrow
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Because?
Shingle particles are large and the weak backwash can't move them back down the beach. The shingle particles build up and create a steep slope
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How are spits and bars formed?
by long shore drift
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What are spits?
Beaches that stick out into the sea , they are joined to the coast at one end
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What is a bar?
If a spit sticks out so far that it connects with another bit of mainland
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Where do spits form at?
sharp bends near the coastline ,for example at river mouth
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What does the long shore drift do?
Long shore drift transports sand and shingle past the bend and deposits in the sea
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What curves the end of the spit?
Strong winds and wave can curve the end of the spit forming a re curved end
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The sheltered area behind the spit is protected by?
from the waves
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What happens there?
lots of material accumulates in the area,which means plants can't grow there
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What happens over time?
The sheltered area can become a mud plat or salt marsh
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Give an example of a spit?
Spurn Head in Yorkshire
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When is a bar formed?
When a spit joins two headlands togtherer
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For example?
Slapton in Devon
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What does the bar cut off?
the bay between the headlands from the sea
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What does this mean?
A lagoon can form from behind the bar
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Other cards in this set

Card 2

Front

Beaches are found?

Back

On coasts between the high water mark and low water mark

Card 3

Front

How are they formed?

Back

Preview of the front of card 3

Card 4

Front

What is the difference between sand and shingle beaches?

Back

Preview of the front of card 4

Card 5

Front

How do sand beaches look like?

Back

Preview of the front of card 5
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