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16/03/2009 11:23:45
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P number: P527733
Caption: Limestone from Eilean Dubh, Durness, Sutherland.
Description: The island Eilean Dubh gives its name to the second distinctive Durness Limestone formation, the Group II Eilean Dubh Formation. The Durness Limestone, or to give it its current name, the Durness Group is Cambro-Ordovician in age. British Geological Survey Petrology Collection sample number MC 7510. The Eilean Dubh Formation consists of 340 feet of fine-grained, flaggy, argillaceous 'dolomite' and limestone with many stromatolitic and algal bands. Below the Eilean Dubh Formation rests the Ghrudaidh Formation, a generally dark, lead-coloured and mottled dolomite with Salterella. Above it is the Group III Sailmhor, a massive mottled granular dolomite.
Date taken: 25/06/1905
Photographer: Unknown
Copyright statement: Unknown
Orientation: Landscape
Size: 155.75 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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