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23 Cards in this Set
- Front
- Back
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What is Swash? |
Swash is the part of the wave where it enters the coastline, it can be strong or weak. |
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What is Backwash? |
Backwash is the part of the Wave where it leaves the coastline, it can be strong or weak. |
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What is a Constructive Wave? |
A constructive wave is when the Swash is strong and the backwash is weak, in effect the swash leaves deposits a higher amount of sediment than the backwash transports away. |
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What is a Destructive Wave? |
A destructive wave is when the swash is weaker than the backwash, in effect is transports sediment away. |
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What is longshore drift? |
Longshore drift is when the direction of the prevailing wind is at an angle to the coastline and the swash moves it down the coast and the backwash brings it back. |
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What is Prevailing Wind? |
Prevailing wind the general direction of the wind. |
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What is Depostion? |
Depostion is the process of material getting left in an area (deposit). |
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What is Transportation? |
Transportation is the process of transporting sediment from one area to another. |
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What is a Fetch? |
The Fetch is the area the prevailing wind has to blow over/ amplify the wave. |
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What is Erosion? |
Erosion is the process of wearing away rock or land. |
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What is Hydraulic action? |
Hydraulic action is the process of water entering a small crack in a rock face at a very fast speed causing the air inside to be trapped and compressed. When the water leaves the air decompresses creating explosive force. |
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What is Abrasion? |
Abrasion is when rocks travel over a "rocky" surface causing is to erode, like a sandpaper. |
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What is Attrition? |
Where rocks get hit together set smoothened out. |
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What is Solution? |
Where rocks react with chemicals in the water to wear them down. |
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What is corrasion? |
Corrasion is when rocks are hurled at a cliff face to cause the cliff face to erode. |
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What is Mechanical Weathering? |
When water enters a pocket in a cliff and the water feezes and then expands causing the cracks to get bigger and pieces of the cliff to come off. |
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What is chemical weahering? |
Chemical weathering is when Rain that contains catbonic acid reacts with rocks and gets eroded. |
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What is a coastal bar? |
A bar of sand running across the coastline past a bay, caused by longshore drift. |
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What is a Lagoon? |
The bay blocked by the coastal bar is a lagoon, over time the Lagoon becomes pure. |
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What is a spit? |
Where longshore drift carries on past an estuary or plain of sea causing it crate a strand of land/sand. |
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What is a recurved end? |
A recurved end is then the prevailing wind direction changes when a spit is being built cuasing it curve at an angle. |
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What is a headland? |
It is a part of a cliff where it is more resistant and less eroded, it is an outlying cliff. |
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What is a bay? |
It is a part of a cliff where it is less resistant and more eroded causing it to retreat in, it is surounded by to headlands to make it a bay. |
