| P number: | P223031 |
|---|---|
| Old photograph number: | L02530 |
| Caption: | Close to Ashbourne-Clifton road 80 m. NE of Halfway House, S. of Ashbourne. |
| Description: | Close to Ashbourne-Clifton road 80 m. NE of Halfway House, S. of Ashbourne. Close-up view of Ashbourne Gravel near Halfway House. The section shows a cross-bedded quartz sand lens (beside the compass) within a poorly sorted sandy gravel; the whole being well-cemented by calcite. A count of 190 pebbles showed 58% Carboniferous Limestone, 21% Carboniferous sandstone, 17% quartz and quartzite, 3% chert and 1% other types. The Ashbourne Gravel is regarded as pre-Wolstonian in age. |
| Date taken: | 01/09/1980 |
| Photographer: | Thornton, K.E. |
| Copyright statement: | NERC |
| X longitude/easting: | 417070 |
| Y latitude/northing: | 345480 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Portrait |
| Size: | 358.63 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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