| P number: | P527973 |
|---|---|
| Caption: | Photomicrograph of Broadstone Limestone. Light: PPL. Magnification: x2.5. Auchenmade Quarry, Dalry, Ayrshire, Scotland. |
| Description: | Grey argillaceous limestone with Lithostrotion. This specimen is Calciferous Sandstone Series (Carboniferous) in age. BGS sample number SL 136. British Geological Survey Petrology Collection sample number S 34622. Photomicrograph details: Light: PPL, Magnification: x2.5. The sample is composed of large and small fragments of crinoids and of shells, spines, large and small foraminifera, Calcisphaera, and occasional coral and polyzoan pieces in a bedded matrix of finely granular calcite mixed with small fossil relics, limonite shreds and opaque carbonaceous fragments and pyrite grains. Orange and opaque bituminous material forms undulating films and streaks along the bedding. The larger organic fragments are mostly arranged with their long axes parallel to the bedding. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 397.56 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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