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Uploaded on:
16/02/2009 09:24:31
Type:
Digital Asset
File Size:
322.64 KB
Dimensions:
1001 x 735 pixels
3138 views 6 downloads
P number: P023962
Old photograph number: A04985
Caption: Seacombe Quarry, Worth Matravers, Dorset.
Description: The Isle of Purbeck, though perhaps more famous as the source of the fossiliferous Purbeck Marble, is also a major producer of Portland Stone. The same succession of worked beds - Basebed, Whitbed and Roach - that outcrop in the Isle of Portland extends into the Purbeck area. Many of the quarries in the Isle of Purbeck were sited along the coastal cliffs and the stone was worked via an extensive series of underground galleries. Raising a block of Portland Stone from the Seacombe Quarry. The block, cut from the face of the quarry by the plug and feathers method weighs about 4.5 tons. One of the advantages that the Portland Stone quarries have over other producers is the large size of the limestone blocks that can be produced. The limestone quarries of Portland Bill have been in operation since Roman times. The characteristic white limestones which have proved to be extremely durable, even in the most polluted of urban environments, can be found in important buildings in all major cities and most large towns in the United Kingdom.
Date taken: 01/04/1930
Photographer: Rhodes, J.
Copyright statement: Crown
X longitude/easting: 397500
Y latitude/northing: 77500
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 322.64 KB; 1001 x 735 pixels; 85 x 62 mm (print at 300 DPI); 265 x 194 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Unsorted Images, Geoscience subjects/ Economic geology/ Quarries, Geoscience subjects/ Economic geology/ Building stones, limestone  

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