| P number: | P213711 |
|---|---|
| Old photograph number: | A15107 |
| Caption: | Gregory's Quarry, Wilsford Heath. |
| Description: | Gregory's Quarry, Wilsford Heath. Limestone working, Gregory's Quarry. A view of active quarrying operations in Upper Lincolnshire Limestone showing the tools and technique of the quarrying. The darker coloured upper half of the working stoneface consists of the 'weatherstone' - a coarse-grained, shelly peloidal oolite grainstone characterized by vigorous cross-bedded units, many with unoxidised 'blue' cores. Probably the same thing as 'Ancaster Rag' or Clipsham Member (of M. Ashton). The stone beneath the ladder is called the 'Hard White' locally but is equivalent to 'Ancaster Stone', an even-grained, well-cemented less strongly cross-bedded oolite grainstone. It may be Sleaford Member of Ashton though Ashton himself classed it as part of the Clipsham Member. |
| Date taken: | Sun Sep 01 00:00:00 BST 1991 |
| Photographer: | Evans, H.J. |
| Copyright statement: | NERC |
| X longitude/easting: | 498950 |
| Y latitude/northing: | 341090 |
| Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
| Orientation: | Landscape |
| Size: | 260.99 KB; 1000 x 666 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI); |
| Average Rating: | Not yet rated |
| Categories: | Unsorted Images |
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