| P number: | P552833 |
|---|---|
| Caption: | Cornstone. Larmielane Limeworks; main worked band. Ayr. |
| Description: | Dense, pale buff limestone containing impersistent veins or segregations of white calcite. Composed of very fine-grained granular carbonate (0.01 mm or less) which is patchily recrystallized, sometimes to a granular aggregate of 0.02 - 0.04 mm grain-size, sometimes to quite coarse segregations of clear calcite. Small rhombs of dolomite or ankerite occur sporadically in the fine calcite and also line a vein of coarse calcite. These are destroyed by a late infiltration of yellow chert, the latter replacing the dolomite with ejection of limonite. Grains of quartz, up to 0.5 mm, are scattered sparsely through the fine-grained limestone and are coated with and enclose granules of opaque matter, probably limonitic clay. Limestone, in part arenaceous, micrograined, clotted, breccioid. SL0156. Britrocks S34658. Magnification x40. Light XPL. |
| 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: | 426.30 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 |
Loading...
Loading...
Reviews
There is currently no feedback