| P number: | P527971 |
|---|---|
| Caption: | Photomicrograph of Jenny Pate Limestone. Light: PPL. Magnification: x2.5. Sandydub old quarry, 1 mile west of Saline, Fifeshire, Scotland. |
| Description: | Dull grey, compact dolomite. Small relics of shells, crinoids and foraminifera are scattered rather sparsely in a matrix of turbid granular dolomite of grain size 0.01 mm. This specimen is Carboniferous Limestone Series in age. BGS sample number SL 117. British Geological Survey Petrology Collection sample number S 34590. Photomicrograph details: Light: PPL, Magnification: x2.5. The foraminifera are preserved as casts, the chambers being filled by pyrites while the walls are recrystallized as dolomite indistinguishable from the matrix. The shell and crinoid fragments, though partly replaced by pyrite, retain the original organic fabric and are probably still calcite. Angular grains of quartz, 0.05 mm across, and carbonaceous particles are scarce. The dolomite is ferriferous. In summary a muddy ferriferous dolomite, micrograined with relict fossil remains. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 350.44 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 |
Loading...
Loading...
Reviews
There is currently no feedback