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File:Paramoudra on chalk outcrop - geograph.org.uk - 792764.jpg

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English: Paramoudra on chalk outcrop. Flint nodules such as the one seen here are called paramoudras, also known as pot stones. These large nodules originally had a central core filled with chalk. Once exposed, the soft chalk is quickly washed out by wave action, leaving a large hole. One can occasionally spot pot stones in gardens where they serve as natural planters. – The chalk layer is only visible at low water. It is composed of calcium carbonate from the remains of microscopic marine organisms that once lived in a warm shallow sea which covered this area between 62 and 132 million years ago. Its upper few centimetres are composed of fragments of rocks.

http://www.chesterfieldlodge.fsnet.co.uk/Geology/west%20runton-east%20runton.htm

http://www.museums.norfolk.gov.uk/default.asp?document=400.500.100.025
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Author Evelyn Simak
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Evelyn Simak / Paramoudra on chalk outcrop / 
Evelyn Simak / Paramoudra on chalk outcrop
Camera location52° 56′ 38″ N, 1° 14′ 23″ E  Heading=0° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo
Object location52° 56′ 40″ N, 1° 14′ 23″ E  Heading=0° Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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6 May 2008

52°56'38.4"N, 1°14'22.6"E

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52°56'40.34"N, 1°14'23.28"E

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current05:35, 20 February 2011Thumbnail for version as of 05:35, 20 February 2011480 × 640 (205 KB)GeographBot== {{int:filedesc}} == {{Information |description={{en|1=Paramoudra on chalk outcrop Flint nodules such as the one seen here are called paramoudras, also known as pot stones. These large nodules originally had a central core filled with chalk. Once expose

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