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Uploaded on:
2009-03-17 20:38:35.0
Type:
Digital Asset
File Size:
231.67 KB
Dimensions:
837 x 1000 pixels
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P number: P519767
Caption: Triassic New Red St. Bees Sandstone from Bank End Quarry, Whitehaven, Cumbria, England
Description: The sample is a fine-grained sandstone with a dark red colour. The specimen is of Triassic age. British Geological Survey Petrology Collection sample number MC 5861. The so-called red sandstones owe their colour to the presence of very fine-grained deposits of iron oxide (probably hematite) which are precipitated as coatings around the individual grains that make up the sandstone. These can be seen as minute films in thin section. Most of the red sandstones formed in a dry arid or desert environment, either as wind-blown (aeolian) deposits, or as river deposits on vast alluvial planes. The St. Bees Sandstone has been widely used as a building stone throughout England. For example it has been used at Windsor Castle, in London and on Liverpool Cathedral. In Scotland it was used for the old College of Domestic Science in Glasgow, and in 1983 was used for restoration work at Fort George near Inverness.
Date taken: Wed Jan 01 00:00:00 GMT 2003
Photographer: Bain, T.S.
Copyright statement: NERC
Orientation: Portrait
Size: 231.67 KB; 837 x 1000 pixels; 71 x 85 mm (print at 300 DPI); 221 x 265 mm (screen at 96 DPI);
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