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Coastal Erosion

Images Description Links to exercises created using this image Cliff slumping The unconsolidated material in this cliff has collapsed in a number of places. This is called slumping. It can occur where a weaker rock such as clay underlies a harder rock. After a period of heavy or incessant rainfall or even an earhtquake the water builds up under the surface and the loose material flows down the hillside. This usually involves a rotational movement causing large blocks to break away. The sliding surface is concave. Another example is where boulder clay cliffs (glacial deposits) as on the North Sea coast from Holderness northwards can be undercut by waves. In these areas protective measures have to be put in place such as sea walls or granite rip rap. Right click the mouse over this image to choose Save Picture As in order to place a copy of the image file on your computer.

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Please use these images in other documents and software without seeking permission but add an acknowledgement of the form - Hugh Mothersole, Geography Department, Wycombe High School. Do not include these images in any website image collection without seeking permission or sell them for profit.