| P number: | P527947 |
|---|---|
| Caption: | Photomicrograph of North Greens (No. 2) Limestone, lower massive half. Light: PPL. Magnification: x2.5. Quarry 160 yards north-west of Northfield, Cousland Lime Workings, 2.5 miles east-north-east of Dalkeith, Midlothian, Scotland. |
| Description: | Bedded limestone composed largely of fragments of calcareous organisms. This specimen is Carboniferous Limestone Series in age. BGS sample number SL 59. British Geological Survey Petrology Collection sample number S 34541. Photomicrograph details: Light: PPL, Magnification: x2.5. In thin section the fossils are associated with cementing fine calcareous debris and some argillaceous and bituminous matter. Crinoids, foraminifera, shells and polyzoan fragments are numerous and lie with their flatter surfaces along the bedding. A microclastizoic limestone composed of well-sorted small fragments of fossils and entire microfossils of comparable size embedded in a bedded matrix of pelitomorphic calcite admixed with clay and bituminous matter. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 400.40 KB; 1000 x 663 pixels; 85 x 56 mm (print at 300 DPI); 265 x 175 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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