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16/03/2009 11:11:12
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P number: P527726
Caption: Dolomite from the Durness Limestone, Sarsgrum, Eriboll, Sutherland.
Description: Sarsgrum is two and a half miles south-west of Durness and contains a number of exposures of Cambro-Ordovician dolomites. This specimen shows veining. British Geological Survey Petrology Collection sample number MC 7503. Mottled dolomites of a high grade belonging to the Sailmhor Group form a rocky bluff at Sarsgrum. A chemical analysis from this locality yielded 52.7 per cent calcium carbonate and 44.4 per cent magnesium carbonate. Less than half a mile north of Sarsgrum and five-sixths of a mile south of Keodale, a section of the Eilean Dubh Group can be seen along the course of a small stream flowing into the Kyle of Durness. A chemical analysis from this locality yielded 49.3 per cent calcium carbonate and 40.3 per cent magnesium carbonate.
Date taken: 25/06/1905
Photographer: Unknown
Copyright statement: Unknown
Orientation: Landscape
Size: 127.22 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI);
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