P number: | P000095 |
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Old photograph number: | C03601 |
Caption: | Locharbriggs Quarry. Dumfriesshire. A close-up showing the 'shot-grove' and chisel wedge method of splitting stone. |
Description: | Locharbriggs Quarry. Dumfriesshire. A close-up showing the 'shot-grove' and chisel wedge method of splitting stone. Widely spaced holes are drilled and filled with black powder; once blown and the blocks dislodged, chisel wedges are driven in along planes of weakness (usually bedding planes) to further work the stone. Note the quarryman wielding the large crowbar. The Locharbriggs Sandstone Formation is of Permian age. |
Date taken: | Fri Jan 01 00:00:00 GMT 1937 |
Photographer: | Fisher, W.D. |
Copyright statement: | Crown |
Acknowledgment: | This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network |
X longitude/easting: | 299500 |
Y latitude/northing: | 580500 |
Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
Orientation: | Landscape |
Size: | 328.81 KB; 1000 x 716 pixels; 85 x 61 mm (print at 300 DPI); 265 x 189 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Best of BGS Images/ Images from the archives |
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