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    Describe two ormore landforms resulting from coastal erosion and explain their formation can some please help me with this, if possible has anyone got a model answer
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    Cliffs and headlands.

    Cliffs - The sea erodes (usually by corrosion or hydraulic action, hydraulic action being the force of the water attacking the base of the cliff and corrosion being the acids in the water attacking the base of the cliff also) the base of the cliff whilst the weather attacks the top of the cliff, usually by acid rain corroding with the rocks which have carbonates in them, for example limestone which contains Calcium Carbonate (I believe). A wave-cut notch is formed at the bottom of the cliff, eventually causing it to collapse due to the fact that it's not stable enough to hold itself. (not called an overhang, made that mistake once lol).
    The backwash of the sea removes the eroded material that has collapsed and a wave-cut platform is left behind. This process continues and the cliff starts to retreat.
    In addition, the cliff can have large amounts of material/bedding planes slump or just rockfall into the sea.

    Headlands - These are formed when there are alternating bands of hard and soft rock (e.g. alternating bands of clay and granite). The water is able to erode the soft rock easier (by the two forms of erosion I just mentioned above) due to human "tampering" which causes the rock to be eroded much faster than the hard rock either side of it, causing a particular section of land to be jutting out, known as a headland. These also tend to form more along discordant coastlines due to their alternating rock types.
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    (Original post by Fractite)
    Cliffs and headlands.

    Cliffs - The sea erodes (usually by corrosion or hydraulic action, hydraulic action being the force of the water attacking the base of the cliff and corrosion being the acids in the water attacking the base of the cliff also) the base of the cliff whilst the weather attacks the top of the cliff, usually by acid rain corroding with the rocks which have carbonates in them, for example limestone which contains Calcium Carbonate (I believe). A wave-cut notch is formed at the bottom of the cliff, eventually causing it to collapse due to the fact that it's not stable enough to hold itself. (not called an overhang, made that mistake once lol).
    The backwash of the sea removes the eroded material that has collapsed and a wave-cut platform is left behind. This process continues and the cliff starts to retreat.
    In addition, the cliff can have large amounts of material/bedding planes slump or just rockfall into the sea.

    Headlands - These are formed when there are alternating bands of hard and soft rock (e.g. alternating bands of clay and granite). The water is able to erode the soft rock easier (by the two forms of erosion I just mentioned above) due to human "tampering" which causes the rock to be eroded much faster than the hard rock either side of it, causing a particular section of land to be jutting out, known as a headland. These also tend to form more along discordant coastlines due to their alternating rock types.
    You're correct, limestone is made up of calcium carbonate.
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    Thanks!
 
 
 
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