P number: | P000177 |
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Old photograph number: | C03860 |
Caption: | Quarry at Damheads, 366 m. west by north of Damheads, 2.4 km. south-south-west of Portsoy. Banffshire. Close-up of deep opencast excavations along talc veins. |
Description: | Quarry at Damheads, 366 m. west by north of Damheads, 2.4 km. south-south-west of Portsoy. Banffshire. Close-up of deep opencast excavations along talc veins. Mass of serpentine left as barriers. Note the pit props used to stabilize the faces. The rock is a variegated foliated serpentine shattered by numerous crushes into large lens-shaped masses coated thickly with white talc. In slice the rock is an olivine-serpentine with wisps of talc along shear-lines. Talc is another hydrated magnesium silicate. Serpentine is also a hydrated magnesium silicate. They occur mainly in altered ultrabasic rocks where they are derived from olivine or enstatite. |
Date taken: | Mon Jan 01 00:00:00 BST 1945 |
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: | 357500 |
Y latitude/northing: | 863500 |
Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
Orientation: | Landscape |
Size: | 240.50 KB; 1000 x 717 pixels; 85 x 61 mm (print at 300 DPI); 265 x 190 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Unsorted Images |
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