Uploaded on:
2009-03-17 01:03:29.0
Type:
Digital Asset
File Size:
301.29 KB
Dimensions:
1000 x 665 pixels
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P number: P527781
Caption: Limestone from the Chapel Quarry, Kirkaldy, Fifeshire.
Description: A specimen of limestone from the Chapel Quarry, 2 miles north-west of Kirkaldy, Fifeshire and from the lower part of the seam where the limestone is baked by the close proximity to the underlying quartz-dolerite sill. The specimen is light whitish-grey with pink bands and contains a fossil coral. BGS Sample SL 10. British Geological Survey Petrology Collection sample number MC 7557. The average thickness of the limestone is 30 feet and the general dip is north at 10 degrees. The seam has been worked, opencast for the most part, on a length of face of about 300 yards; but some recent development in the lowest 10 to 12 feet was by mining, the overburden being too heavy to permit further quarrying. Immediately below the seam there is a thick sill of quartz-dolerite, and a thin dolerite dyke cuts vertically through the limestone in the western part of the quarry. The stone is of moderately good quality and has been extensively worked. An attempt at development in the 1940s, however, proved unsatisfactory owing to the tendency of the limestone to fuse in the kilns. Petrological examination disclosed the presence of the mineral datolite (calcium borosilicate) in some quantity, irregularly distributed through the limestone, and associated with other alteration products of a thermal metamorphism. The presence of boron in considerable quantities was confirmed by the chemical analyses, and may have been the cause of the difficulty in the kilns.
Date taken: Sun Jun 25 00:00:00 GMT 1905
Photographer: Unknown
Copyright statement: Unknown
Orientation: Landscape
Size: 301.29 KB; 1000 x 665 pixels; 85 x 56 mm (print at 300 DPI); 265 x 176 mm (screen at 96 DPI);
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