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Uploaded on:
2009-03-17 20:11:20.0
Type:
Digital Asset
File Size:
163.70 KB
Dimensions:
1000 x 775 pixels
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P number: P519685
Caption: Specimen of granite from Tormore Quarry, Fionnphort, Isle of Mull, Argyllshire, Scotland
Description: The sample is a cut slice of granite from the Ross of Mull. It shows a strong red colour due to the presence of alkali feldspar. The specimen is of Silurian age. British Geological Survey Petrology Collection sample number EMC 5709. The Ross of Mull granite has been quarried and used as a decorative building stone in many parts of the British Isles, including London. The granite is a coarse-grained muscovite-biotite rock which contains small outcrops of an earlier quartz diorite in its south-western parts. It forms a handsome pink-coloured rock in which the jointing is quite widely spaced in places. The intrusion occupies 52 square kilometres, and is wedge shaped, thickening towards the west with its base dipping eastwards at c. 30 degrees from the east shore of Iona.
Date taken: Wed Jan 01 00:00:00 GMT 2003
Photographer: Bain, T.S.
Copyright statement: NERC
Orientation: Landscape
Size: 163.70 KB; 1000 x 775 pixels; 85 x 66 mm (print at 300 DPI); 265 x 205 mm (screen at 96 DPI);
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