| P number: | P527580 |
|---|---|
| Caption: | Bog iron ore from Lon Odhar, South Erradale, Gairloch, Ross and Cromarty. |
| Description: | Bog iron ore from Lon Odhar, South Erradale, Gairloch, Ross and Cromarty. Bog iron ore is an organogenetic sedimentary rock. British Geological Survey Petrology Collection sample number MC 7360. It can be found in a range of colours from reddish, blackish to yellowish, it is often compact with a fine grain size or, more commonly an oolitic porous texture in which the spherules are consolidated by clays and limonite. They frequently contain animal and vegetable fossil remains. Bog iron ores are usually recent in age and are usually deposited in lakes, lagoons or sea water where there is restricted movement for bacteria. South Erradale is a well-known locality for bog iron ore and it supported the Loch Maree group of furnaces, c. 1607 to 1677. |
| Date taken: | 25/06/1905 |
| Photographer: | Unknown |
| Copyright statement: | Unknown |
| Orientation: | Landscape |
| Size: | 198.29 KB; 1000 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: | Unsorted Images |
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