| P number: | P229905 |
|---|---|
| Old photograph number: | MNS05770 |
| Caption: | Panned concentrate of gold from Borland Glen, Glendevon. |
| Description: | Borland Glen, Glendevon. Exploration for gold has been undertaken in the Borland Glen. This sample of panned concentrate from a mechanical concentrator product is derived from 1.7 tonnes of alluvium and regolith adjacent to the stream. Long dark particles adjacent to the gold are cinnabar. Surveys for alluvial gold in Scotland indicate high concentrations in the Ochil Hills with the highest in Borland Glen where Lower Devonian andesitic lavas are intruded by a dioritic body and porphyry dykes. Locally there has been intense argillic hydrothermal alteration and brecciation indicative of an epithermal setting. Exploration in the 1990s failed to find the source of the gold and though alluvial gold such as this sample was found it has not proved economic to work commercially. |
| Date taken: | Sun Jun 25 00:00:00 GMT 1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 172.50 KB; 1000 x 775 pixels; 85 x 66 mm (print at 300 DPI); 265 x 205 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Best of BGS Images/ Industrial geology |
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