File:Paramoudra on chalk outcrop - geograph.org.uk - 792764.jpg
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Summary
| Description |
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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| Date | |||
| Source | From geograph.org.uk | ||
| Author | Evelyn Simak | ||
| Permission (Reusing this file) |
   This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license. Attribution: Evelyn Simak
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| Attribution (required by the license) | Evelyn Simak / Paramoudra on chalk outcrop / | ||
| Camera location |   | View this and other nearby images on: OpenStreetMap |  |
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| Object location | | View this and other nearby images on: OpenStreetMap | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:35, 20 February 2011 | | 480 × 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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