File:Road Cutting - geograph.org.uk - 820828.jpg
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This is a file from the Wikimedia Commons. The description on its description page there is shown below.
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Summary
| Description |
English: Road Cutting The rock faces exposed when the new A838 was built have become a mecca for geologists because they show the relationships of the different types of rock in the Lewisian. The oldest rock is the striped grey Badcallian gneiss, which is 2700 to 3000 million years old. Between 2400 and 2200 million years ago these grey rocks were intruded by dykes of black igneous rock, known as Scourie dykes. These rocks were later deformed and again intruded by coarse pink granites and pegmatites, themselves deformed during the Laxfordian event of 1900 to 1700 million years ago. |
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| Source | From geograph.org.uk |
| Author | Anne Burgess |
| Attribution (required by the license) | Anne Burgess / Road Cutting / |
| Camera location |   | View this and other nearby images on: OpenStreetMap |  |
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_heading:112.00&language=en){kind=link}
| Object location | | View this and other nearby images on: OpenStreetMap | |
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_heading:112.00&language=en){kind=link}
Licensing
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This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Anne Burgess and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Anne Burgess
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File history
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| Date/Time | Dimensions | User | Comment | |
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| current | 09:41, 20 February 2011 | 640 × 427 (277 KB) | GeographBot | == {{int:filedesc}} == {{Information |description={{en|1=Road Cutting The rock faces exposed when the new A838 was built have become a mecca for geologists because they show the relationships of the different types of rock in the Lewisian. The oldest rock |
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