| P number: | P519670 |
|---|---|
| Caption: | Caithness Flagstone from Whitemoss Quarry, 3.5 miles south-east of Thurso, Caithness, Scotland |
| Description: | The specimen is a cut sample of Caithness Flagstone 'pavement'. The specimen is of Middle Old Red Sandstone age. British Geological Survey Petrology Collection sample number T 47A. This rock was presented to the Geological Survey of Scotland in 1910 by David Coghill, Managing Director of the Caithness Pavement Quarries Limited, 18 High Street, Thurso. The sample was collected as part of a large project to document economic stone and mineral resources from all over Scotland. Specimens such as this are of considerable value today as much of the building stone industry in Scotland has long since closed down. The samples provide records of the type of stone that was being extracted from a particular quarry at a particular time. They are valuble historically and for building conservation work. The rocks of the Orcadian basin were laid down in a vast lake during the Devonian some 350 to 400 Million years ago. The rocks belong geologically to the Old Red Sandstone strata which form an almost continuous outcrop along the eastern side of the Northern Highlands of Scotland from Loch Ness to the north coast of Caithness and the whole of Orkney. The Caithness Flagstones were laid down in an extensive shallow lake environment which extended across Caithness and Orkney. They contain many fish-bearing beds, associated with extensive though thin bands of limestone. |
| Date taken: | Wed Jan 01 00:00:00 GMT 2003 |
| Photographer: | Bain, T.S. |
| Copyright statement: | NERC |
| Orientation: | Portrait |
| Size: | 102.84 KB; 775 x 1000 pixels; 66 x 85 mm (print at 300 DPI); 205 x 265 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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