Vallis Vale, Somerset

De la Beche Unconformity, Vallis Vale (central part)

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Probably one of the best examples of an unconformity in Southern England. An unconformity is a buried erosional surface separating strata of different ages; it indicates that sediment deposition was not continuous. In this unconformity at the very eastern end of the Mendips, younger strata of sedimentary Jurassic Inferior Oolite rest upon the eroded surface of tilted older Carboniferous Vallis Limestone. See also [[[4156686]]] [[[4165168]]] and [[[4165177]]]http://www.bgs.ac.uk/mendips/localities/greatelm.html

Uploaded to Geograph by Vieve Forward on 8 September 2014

Creative Commons License Photo © Vieve Forward, 8 September 2014. Licensed for reuse under this Creative Commons licence

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