Uploaded on:
2009-03-18 12:47:21.0
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P number: P553053
Caption: Cornstone. Right bank of Poldownie Burn, 600 yards east-north-east of Glenmuirshaw. Ayr.
Description: A pale purplish, compact limestone containing marly red spots and nests of white, more coarsely crystalline, calcite. The rock is composed of finely granular calcite of grain-size 0.02 - 0.05 mm. Short films of clay are present but scarce. The grain of the rock increases over small areas and coarse-grained calcite occurs along indefinite nodose channels. Quartz is sparsely distributed as single and composite grains. Limestone, subarenaceous, fine-grained, granular. SL0257. Britrocks S35454. Magnification x40. Light XPL.
Date taken: Wed Jan 21 00:00:00 GMT 2004
Photographer: Sutherland, A.
Copyright statement: NERC
Additional information: Description from: Limestones of Scotland: chemical analyses and petrography. Edinburgh : HMSO, 1956.
Orientation: Landscape
Size: 433.71 KB; 1000 x 750 pixels; 85 x 64 mm (print at 300 DPI); 265 x 198 mm (screen at 96 DPI);
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