| P number: | P531433 |
|---|---|
| Caption: | Photomicrograph of Charlestown Main Limestone, top 7 ft. Light: PPL. Magnification: x2.5. West Quarry. Charlestown Quarries, 3 miles south-west of Dunfermline, Fifeshire, Scotland. |
| Description: | A brownish, compact dolomitized limestone, having a crystalline appearance due to the abundance of crinoid plates. This specimen is Carboniferous Limestone Series in age. BGS sample number SL 276. British Geological Survey Petrology Collection sample number S 35799. Photomicrograph details: Light: PPL, Magnification: x2.5. It is composed of fossil debris consisting essentially of crinoidal and polyzoan fragments; subordinate fossil components include shells, spines, foraminifera, siliceous spicules and scarce phosphatic fragments. Parts of the rock are completely dolomitized; in other parts, while the matrix is recrystallized in dolomite and partly replaced by quartz, the larger fossil structures remain wholly or in part of calcite. In summary, the sample is a fossiliferous dolomitic limestone, containing angular fossil debris. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 310.77 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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