| P number: | P001430 |
|---|---|
| Old photograph number: | Z00011 |
| Caption: | Cargen borehole site, Dumfries, Dumfries and Galloway Region. Breccia core from the groundwater abstraction borehole operated by West of Scotland Water. |
| Description: | The Permian rocks of the Dumfries basin comprise two main rock types - breccia and sandstone. The breccia is a matrix-supported rock with a red clayey matrix and mainly Silurian angular clasts. The rock was formed during mud-flow events after periods of heavy rain in a desert environment. The breccia itself is almost impermeable, but where it is interlayered with sandstone units, fissures at the junction allow groundwater to flow. Boreholes intercepting these fissures are normally highly productive. |
| Date taken: | 01/01/1996 |
| Photographer: | Ball, D.F. |
| Copyright statement: | NERC |
| X longitude/easting: | 296350 |
| Y latitude/northing: | 572060 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Portrait |
| Size: | 268.05 KB; 667 x 1000 pixels; 56 x 85 mm (print at 300 DPI); 176 x 265 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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