| P number: | P552799 |
|---|---|
| Caption: | Arden (Calmy) Limestone, middle and bottom posts. Renfrew. |
| Description: | Grey compact, uniformly fine-grained limestone with sharp angular fracture. Small shelly and crinoidal fragments are scattered rather sparsely through a very fine-grained turbid base composed of finely divided carbonate and clay and numerous small grains and rhombs of carbonate up to 0.2 mm across. These are possibly dolomite but because of the low proportion of MgO shown by chemical analysis it is possible that they are cleavage fragments of calcite. Calcisphaera and foraminifera are also present. Grains of pyrite and quartz are scarce. Limestone, luteous, micro-grained, subclastizoic. SL0141. Britrocks S34627. Magnification x40. Light PPL. |
| Date taken: | Wed Jan 21 00:00:00 GMT 2004 |
| Photographer: | Sutherland, A. |
| Copyright statement: | NERC |
| Additional information: | Description from: Limestones of Scotland: chemical analyses and petrography. Edinburgh : HMSO, 1956. |
| Orientation: | Landscape |
| Size: | 432.11 KB; 1000 x 750 pixels; 85 x 64 mm (print at 300 DPI); 265 x 198 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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