P number: | P552950 |
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Caption: | Limestone. Shore cliff close to Bathing Pool, 0.25 mile south of Sharper Head, Berwick-on-Tweed. Berwick. |
Description: | A brownish-cream, compact, fine-grained crinoidal limestone, composed of a turbid mass of granular calcite, 0.01 mm, and small calcareous organic debris through which are scattered foraminifera, larger shell fragments, ostracod valves, crinoidal fragments and scarcer polyzoan and algal fragments. There are numerous spines and Calcisphaera. The rock is traversed by occasional calcite-filled fractures. Microgranular pyrites, limonite and possibly bituminous matter impregnate some of the fossil fragments. Limestone, micrograined, microfossiliferous, clastizoic, stylolitic. SL0207. Britrocks S35072. 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. |
Orientation: | Landscape |
Size: | 370.37 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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