| P number: | P524265 |
|---|---|
| Caption: | Photomicrograph of slate from Aberfoyle Slate Quarries, Perthshire, Scotland |
| Description: | The image is a thin section of slate from the Aberfoyle slate quarries. The specimen is of Precambrian, Dalradian age. British Geological Survey Petrology Collection sample number S 35716. The rock is composed of a mixture dominated by very fine-grained quartz, feldspar and mica which are aligned to form a strongly elongate fabric or cleavage. Iron oxide minerals which are black in thin section are also present throughout. Running roughly parallel and north-west of the Highland Boundary Fault, at a distance of from 1 to 4 miles, is an almost continuous belt of slate-rock which can be traced from the North Sea to the Firth of Clyde. The slates near the Highland Border have been given a variety of names from the different localities where they have been worked, e.g. Dunoon Phyllites, Luss Slates, Aberfoyle Slates, Dunkeld Slates. The geologist, however, prefers to apply a general name to rocks belonging to the same formation wherever they occur. The general name chosen in this case is the Aberfoyle Slates. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Hyslop, E.K. |
| Copyright statement: | NERC |
| Orientation: | Landscape |
| Size: | 410.57 KB; 1000 x 667 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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