| P number: | P552707 |
|---|---|
| Caption: | Calmy Limestone. Quarry at Benston Limeworks, 3 miles north-west of New Cumnock. Ayr. |
| Description: | Dull greenish-grey, very compact limestone. Composed of an intimate mixture of minutely granular calcite and recrystallized granular calcite (0.02 - 0.03 mm grain-size). Interstitial material, turbid brown in transmitted light but dirty white in reflected light, is abundant and is perhaps clay; the chemical analysis indicates that much of it must be silica of clay grade. Small crinoid columnals and shell fragments are sporadic and there are a few small grains of quartz. The rock is traversed by thin calcite-filled cracks. Limestone, luteous, micrograined, microclastizoichnic. SL0092. Britrocks S34558. Magnification x40. Light PPL. |
| Date taken: | 21/01/2004 |
| Photographer: | Sutherland, A. |
| Copyright statement: | NERC |
| Additional information: | Description from: Limestones of Scotland: chemical analyses and petrography. Edinburgh : HMSO, 1956. |
| Orientation: | Landscape |
| Size: | 422.23 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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