| P number: | P002023 |
|---|---|
| Old photograph number: | C00596 |
| Caption: | Pentland Hills, from above Glencorse Reservoir, Midlothian. Looking south-west. This part of the Pentlands is composed of Devonian volcanic rocks. |
| Description: | Pentland Hills, from above Glencorse Reservoir, Midlothian. Looking south-west. This part of the Pentlands is composed of Devonian volcanic rocks. Escarpment of basic lavas capped by acid lavas and tuffs, forming line of hills. Stream cutting boulder clay in the foreground. Glencorse Reservoir is one of several in the Pentland Hills which were constructed in the 19th century for public water supply to Edinburgh. The Pentland Hills exhibit a variety of volcanic rocks of Devonian age. The majority are lavas which range in composition from olivine basalts through andesites to rhyolites and trachytes. Subsidiary tuffs are also interbedded with many of the lavas. There is also a considerable number of minor intrusions of similar age and range in composition from olivine-dolerite to andesite. In places, the lava succession totals almost 2000 m. in thickness. |
| Date taken: | Fri Jan 01 00:00:00 GMT 1892 |
| Photographer: | Lunn, R. |
| Copyright statement: | Crown |
| Acknowledgment: | This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network |
| X longitude/easting: | 321500 |
| Y latitude/northing: | 663500 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Landscape |
| Size: | 131.77 KB; 1000 x 733 pixels; 85 x 62 mm (print at 300 DPI); 265 x 194 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images, Geoscience subjects/ General views/ Igneous rock country |
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