P001606

Uploaded on:
14/02/2009 01:22:35
Type:
Digital Asset
File Size:
235.59 KB
Dimensions:
1001 x 665 pixels
2510 views 4 downloads
P number: P001606
Old photograph number: TS00989
Caption: Spittal Quarry, Caithness. Cut and stacked Caithness Flags 'Spittal Beds' ready for dispatch to customers. The flagstones are a fine-grained sandstone of Devonian age c. 370 million years old.
Description: Spittal Quarry, Caithness. Cut and stacked Caithness Flags 'Spittal Beds' ready for dispatch to customers. The flagstones are a fine-grained sandstone of Devonian age c. 370 million years old. The flags are first riven from the natural bedding by hammering in steel wedges, spaced 2.5-3 feet apart. When the bed is raised high enough a crowbar is inserted to finally release the block entirely. Subsequent splitting produced slabs of more manageable size. The blocks are then transported to the cutting sheds where they are cut using precision laser-guided saws to the required dimensions. Spittal flagstones were first discovered over 160 years ago and because of their durability and quality they have been exported to many parts of Scotland and England and as far as the continent, North America and Australia.
Date taken: 01/09/1974
Photographer: Unknown
Copyright statement: Unknown
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
X longitude/easting: 317200
Y latitude/northing: 954100
Coordinate reference system, ESPG code: 27700 (OSGB 1936 / British National Grid)
Orientation: Landscape
Size: 235.59 KB; 1001 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI);
Average Rating: Not yet rated
Categories: Best of BGS Images/ Industrial geology  

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