The coastal zone- Glossary

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  • Created by: Jordss
  • Created on: 25-04-14 19:19
Fetch
Distance of open water over which wind can blow
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Beach
Deposit of sand and shingle at the coast, often found at the head of a bay
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Swash
Forward moment up the beach
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Backwash
Backward movement of water down a beach when the wave has broken
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Constructive wave
Powerful wave with a strong awash that surges up the beach
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Destructive wave
Wave formed by local storm crashing down on. Beach and has a powerful backwash
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Mechanical weathering
Breakdown of rocks without changing chemical composition-freeze thaw weathering
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Chemical weathering
Breakdown of rock changing chemical composition
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Mass movement
Shifting of rocks and loose material down a slope
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Rock fall
Fragments of rock break away from the cliff face due to freeze thaw weathering
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Landslide
Blocks of rock sliding down hill
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Mudflow
Saturated soil and weak rock flows down a slope
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Rotational slip
Slump of saturated soil and weak rock along a curved surface
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Hydraulic power
Sheer power of rocks breaks rock away
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Corrosion
Rocks being fling at a cliff by powerful waves
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Solution
Dissolving rocks such as limestone and chalk
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Saltation
Hopping movement of pebbles along the seabed
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Suspension
Lighter particles carried (suspended) in the water
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Longshore drift
Transport of sediment along the coastline, caused by waves approaching the beach at an angle
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Headland
Bit of land jutting out into the sea
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Bay
Broad coastal inlet with a beach
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Wave-cut platform
Wide gently sloping rocky surface at the foot of a cliff
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Wave-cut notch
Indentation (notch) cut into a cliff roughly at level of high tide caused by concentrated marine erosion
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Cave
Hallowed feature at base of an eroding cliff
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Arch
Headland partly broken through by the sea forming a thin roofed arch
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Stack
Isolated pinnacle of rock sticking out into the sea
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Spit
A finger of new land made from sand and shingle jutting into the sea from coast
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Salt march
Low lying coastal wetland extending between high and low tide
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Bar
A spit that's grown across a bay
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Sea wall
Concrete rock barrier at the foot of a cliff/ top of the beach
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Groynes
Timber rock structures out to the sea from the coast
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Rock armour
Piles of large boulders at foot of the cliff
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Beach nourishment
Additional sand/ shingle to an existing beach making it higher and broader
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Dune regeneration
Dunes provide buffers to the sea. Marram grass planted to strengthen dunes/help me them develop
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Marsh creation (managed retreat)
Allowing low-lying coastal areas to be flooded by the sea to become a salt marsh
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Salt marsh
Areas periodically flooded in coastal wetlands
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Other cards in this set

Card 2

Front

Deposit of sand and shingle at the coast, often found at the head of a bay

Back

Beach

Card 3

Front

Forward moment up the beach

Back

Preview of the back of card 3

Card 4

Front

Backward movement of water down a beach when the wave has broken

Back

Preview of the back of card 4

Card 5

Front

Powerful wave with a strong awash that surges up the beach

Back

Preview of the back of card 5
View more cards

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