File:The Devils Punchbowl - geograph.org.uk - 1759621.jpg

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English: The Devils Punchbowl. The Devils Punchbowl near to Croxton, Norfolk. The Devils Punchbowl is a dowline Sinkhole a circular depression formed by ground subsidence or collapse in areas with limestone bedrock consists of chalk a cover of unconsolidated sandy sediment, called glacial tilt, deposited during the Ice Age. The chalk is easily attacked by acidic underground water causing caverns and fissures to form this then leads to subsidence in the landscape. For other view see 1759627
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Source From geograph.org.uk
Author Keith Evans
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Keith Evans / The Devils Punchbowl / 
Keith Evans / The Devils Punchbowl
Camera location52° 28′ 06″ N, 0° 45′ 45″ E  Heading=90° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo
Object location52° 28′ 06″ N, 0° 45′ 48″ E  Heading=90° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Keith Evans
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current00:48, 6 March 2011Thumbnail for version as of 00:48, 6 March 20111,600 × 1,200 (623 KB)GeographBot (talk | contribs)== {{int:filedesc}} == {{Information |description={{en|1=The Devils Punchbowl The Devils Punchbowl near to Croxton, Norfolk. The Devils Punchbowl is a dowline http://en.wikipedia.org/wiki/Sinkhole a circular depression formed by ground subsidence or colla

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