| P number: | P208046 |
|---|---|
| Old photograph number: | A08124 |
| Caption: | Cligga Head Quarry, about 1 1/4 m. W. of Perranporth. Looking W. |
| Description: | Cligga Head Quarry, about 1 1/4 m. W. of Perranporth. Looking W. Cligga Head: greisenized granite. Vein taken in a roadstone quarry, showing greisen bands (dark) in kaolinized granite. Each greisen band has a narrow quartz vein at the centre; farther south (see A8126 and A8127) the veins are wider and contain cassiterite and wolfram as well as quartz. (See also A84 to A90). |
| Date taken: | 01/08/1945 |
| Photographer: | Rhodes, J. |
| Copyright statement: | Crown |
| X longitude/easting: | 174500 |
| Y latitude/northing: | 53500 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Landscape |
| Size: | 236.95 KB; 1001 x 706 pixels; 85 x 60 mm (print at 300 DPI); 265 x 187 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images, Geoscience subjects/ Economic geology/ Roadstone, Geoscience subjects/ Rocks, igneous/ Granite |
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