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Uploaded on:
05/03/2009 06:40:45
Type:
Digital Asset
File Size:
282.82 KB
Dimensions:
1000 x 688 pixels
1260 views 4 downloads
P number: P205888
Old photograph number: A05958
Caption: Road under Wollacombe Down. Looking NE.
Description: Road under Wollacombe Down. Looking NE. Artificial section of 'head' or unassorted detritus formed under conditions of severe cold. Although no true glaciers formed in Devon the severe frosts of the Glacial period affected the county. The temperature fell to probably many degrees of frost and as a result the ground-water was frozen to a great depth and there were no springs. Seasonal thaws affected only the upper few feet of rock but the sudden thawing of many years of snowfall coupled with the weakened rock exposure led to great flows of earth and broken rock fragments, 'head', to fill lower hollows.
Date taken: 01/08/1932
Photographer: Rhodes, J.
Copyright statement: Crown
X longitude/easting: 245500
Y latitude/northing: 143500
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 282.82 KB; 1000 x 688 pixels; 85 x 58 mm (print at 300 DPI); 265 x 182 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Unsorted Images, Geoscience subjects/ Landforms, weathering/ Head  

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