| P number: | P528022 |
|---|---|
| Caption: | Photomicrograph of Charlestown Green?. Light: PPL. Magnification: x2.5. St. Monans shore east of harbour, Fifeshire, Scotland. |
| Description: | A grey bituminous limestone with a rough texture, containing much fossil debris. This specimen is Carboniferous Limestone Series in age. BGS sample number SL 235. British Geological Survey Petrology Collection sample number S 35238. Photomicrograph details: Light: PPL, Magnification: x2.5. The rock is composed of rather coarse shell, polyzoan and crinoidal debris in a matrix of finely divided calcite and small debris containing complete foraminifera, ostracods and spines. The rock is spotted with brownish probably bituminous matter. Many of the foraminifera and some shell fragments are deeply impregnated with opaque matter, which is pyritic in some cases. When powdered this rock gives off heavy oil when heated in a closed tube, and in the thin section bituminous matter is abundantly distributed as short films and small clots. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 370.77 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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