P number: | P521279 |
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Caption: | Rock specimen of 'crumpled' chlorite schist. Roadside, 0.75 miles north-west of Loch Bad an Sgalaig, Gairloch, Rosshire, Scotland. |
Description: | The sample is a fine-grained schist which has been folded (or crumpled) into an angular 'zig-zag' shape. The sample has a grey-green colour caused by the presence of the dominant mineral chlorite, and orange 'rusty' coloured fringes where iron oxides are present. British Geological Survey Petrology Collection sample number EMC82. A chlorite schist is a metamorphic rock with a strong elongate fabric typically defined by aligned flakes of the mineral chlorite. The presence of chlorite in a metamorphic rock generally indicates low grade regional metamorphism. The term 'crumpled' is an old name used by geologists to describe a series of folds within a rock. Part of the Lewisian (Precambrian) Loch Maree Group, part of the Southern Laxfordian Belt of relatively younger Lewisian rocks. |
Date taken: | 01/12/2002 |
Photographer: | McTaggart, F.I. |
Associate: | T.S. Bain |
Copyright statement: | NERC |
Additional information: | EMC82 |
Orientation: | Landscape |
Size: | 227.49 KB; 1000 x 775 pixels; 85 x 66 mm (print at 300 DPI); 265 x 205 mm (screen at 96 DPI); |
Average Rating: | Not yet rated |
Categories: | Unsorted Images |
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