| P number: | P527715 |
|---|---|
| Caption: | A collection of samples from the Sartil, Digg, diatomite deposit on Skye, Invernessshire. |
| Description: | A collection of samples from the Sartil, Digg diatomite deposit on Skye. When dry and pure diatomite resembles white clay or chalk but is readily distinguished by its extreme light weight and the fact that it is not plastic when wet nor effervesces with acid like chalk. British Geological Survey Petrology Collection sample number MC 7492. The diatomite deposits of Scotland are all of recent origin and are found in old lake bottoms, often drained or silted and usually under a cover of peat. There are six localities in the northern part of the Trotternish peninsula. The material from the Sartil workings were conveyed by aerial ropeway to a pier at Staffin Bay. Between 1907 and 1913 some 1056 tons were quarried, in part from Loch Cuithir and in part from Sartil. Diatomite is a whitish, fine-grained substance consisting essentially of siliceous skeletons or frustrules of diatoms. Deposits of diatomite are due to the accumulation of vast quantities of these organisms on the sea floor or in ponds or lakes. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 231.27 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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