P number: | P552494 |
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Caption: | Kirkby's IIIa Limestone. Shore at Randerston. Fife Region. |
Description: | Banded grey and buff close-grained dolomite with flinty fracture. Composed of finely granular dolomite 0.02 - 0.03 mm grain, the refractive index of which, omega = 1.697 or slightly greater, indicates a content of about 20 per cent (CaFe)CO3. The rock contains numerous thin tests of ostracods many of which are preserve in black material probably pyrite. Granules and tiny cubes of oxidized pyrite are scattered through the rock. Yellow phosphatic fossil fragments are very scarce. Ferriferous dolomite, micrograined, microfossiliferous, taxichnic, bedded. SL0028. Britrocks S34450(a). Magnification x40. Light PPL. |
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. 10 minutes in Logwood stain. |
Orientation: | Landscape |
Size: | 393.13 KB; 1000 x 750 pixels; 85 x 64 mm (print at 300 DPI); 265 x 198 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Unsorted Images |
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