| P number: | P552903 |
|---|---|
| Caption: | Tingwall Limestone. Quarry, east side of road 1 mile north-north-east of Scalloway. Shetland Isles. |
| Description: | Shows a lamination in shades of grey and S 34950 is thinly flaggy. The rock is composed of anhedral interlocking grains of twinned calcite, with thin laminae of muscovite, or muscovite-graphite-schist. These laminae have been cut into schlieren by the flowage of calcite and show internal schistosity differing in direction from the parallel arrangement of the schlieren. Quartz is sparsely distributed among the calcite and graphite is disseminated on the grain surfaces in the calcite bands. Pyrite is accessory; apatite scarce. S 34950 Limestone with graphite, quartz and pyrite, fine-grained, sheared. SL0186. Britrocks S34949. Magnification x40. Light XPL. |
| Date taken: | Wed Jan 21 00:00:00 GMT 2004 |
| Photographer: | Sutherland, A. |
| Copyright statement: | NERC |
| Additional information: | Description from: Limestones of Scotland: chemical analyses and petrography. Edinburgh : HMSO, 1956. |
| Orientation: | Landscape |
| Size: | 405.88 KB; 1000 x 750 pixels; 85 x 64 mm (print at 300 DPI); 265 x 198 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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