| P number: | P527858 |
|---|---|
| Caption: | Calcareous tufa, Tornapress Bridge, Loch Kishorn, Ross and Cromarty. |
| Description: | Calcareous tufa from the roadside 680 yards south of Tornapress Bridge, Loch Kishorn, Ross and Cromarty. BGS Sample SL 254. British Geological Survey Petrology Collection sample number MC 7634. A flesh-coloured, porous mass of tufa, composed of a turbid mass of very fine-grained calcium carbonate showing irregularly concentric growths from many centres. The open aggregate formed by these growths is partly filled by a brownish, slightly ferruginous marl containing small organic debris and scarce grains of quartz and feldspar. Durness Limestone of Group II, lavender to reddish in colour, forms a cliff about 20 ft. high, the dip being to east. It is a compact dolomite with flinty fracture and containing numerous small grains of quartz. A spring issues from the limestone a short distance above the top of the cliff and forms a waterfall, depositing calcareous tufa. The tufa was of sufficient amount to be a useful source of lime for local use. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 342.41 KB; 1000 x 681 pixels; 85 x 58 mm (print at 300 DPI); 265 x 180 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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