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Undulations

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wired | 12:40 Sun 28th Jan 2007 | Science
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Can anyone tell me why some fields have large undulations please?
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Avatar Image heathfield
You'll have to be more specific. Undulating field surfaces can be caused by a number of things. Retreating glaciers from the Ice Age left behind hummocks called 'drumlins', medieval farmers carried out 'strip farming', where ploughing left fields with long humps several metres across, and rainwater can dissolve and cause erosion to underlying material, as in the chalk downs.
22:50 Sun 28th Jan 2007
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Sorry, they seem to be very regular and the length of the field.I wouldn't have thought they were strip farming and too regular to be glacial.
22:55 Sun 28th Jan 2007

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