| P number: | P527975 |
|---|---|
| Caption: | Photomicrograph of Loch Tay Limestone. Light: XPL. Magnification: x2.5. 1250 yards east by south of Dunie, 1 mile south-east of Kirkmichael, Perthshire, Scotland. |
| Description: | Pale bluish-grey medium-grained limestone, discoloured along some bands by yellowish oxidized iron ore. This specimen is Dalradian Supergroup (Precambrian) in age. BGS sample number SL 138. British Geological Survey Petrology Collection sample number S 34624. Photomicrograph details: Light: XPL, Magnification: x2.5. The rock is composed of interlocking grains of calcite (0.3-1.0 mm) among which a few quartz and albite grains (probably recrystallized) are distributed. Specks of black material are abundantly disseminated and are aggregated in scattered clots along with limonite and yellowish isotropic chloritic material. Flakes of muscovite and grains and prisms of apatite are accessory. In summary the rock is a medium-grained limestone with a granoblastic texture. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 343.81 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