P number: | P223034 |
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Old photograph number: | L02533 |
Caption: | A dry valley, Park Farm, Cheadle Park, Derbyshire. |
Description: | Looking south-east, 150 m. east of Park Farm, Cheadle Park. A dry valley in Triassic sandstone, Cheadle. The valley is excavated into Triassic sandstones. The gravelly soil in the left foreground is on the side of a disused gravel-pit working the conglomeratic Freehay Member of the Hawksmoor Formation, which caps the hill down to the base of the bracken-covered part of the slope. The valley is believed to have been carved under periglacial conditions where the permafrost rendered the ground impermeable and to have been left dry by a falling water table following the melting of permafrost. Gravel workings on the horizon are also in the Freehay Member, while the intervening low ground is underlain by partially drift-covered Carboniferous Coal Measures rocks. |
Date taken: | Tue Apr 01 00:00:00 BST 1980 |
Photographer: | Thornton, K.E. |
Copyright statement: | NERC |
X longitude/easting: | 400390 |
Y latitude/northing: | 343690 |
Coordinate reference system, ESPG code: | 27700 (OSGB 1936 / British National Grid) |
Orientation: | Landscape |
Size: | 252.79 KB; 1000 x 786 pixels; 85 x 67 mm (print at 300 DPI); 265 x 208 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Unsorted Images, Geoscience subjects/ Landforms, river/ Dry valley |
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