| P number: | P552820 |
|---|---|
| Caption: | Index Limestone. Keirs Glen, just below Keirs Farm. Ayr. |
| Description: | Dull grey argillaceous limestone. Fragments of medium and small shells, a few foraminiferal and crinoidal remains are enclosed in a turbid base composed of shapeless calcite, probably with a clay admixture and numerous small rhombs of ferriferous carbonate. Locally, small aggregates of scaly kaolinite can be distinguished. The small rhombs show by their acute form and their refractive index that the mineral approaches siderite in composition (probably about 80% FeC03). Pyrite, carbonaceous and bituminous matter, and some limonite and quartz are present. Limestone, argillaceous, sideritic, micrograined, microclastixoic. SL0150. Britrocks S34652. Magnification x40. Light PPL. |
| 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: | 406.33 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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