File:The north end of Croft Quarry - geograph.org.uk - 1136379.jpg
The_north_end_of_Croft_Quarry_-_geograph.org.uk_-_1136379.jpg (640 × 479 pixels, file size: 229 KB, MIME type: image/jpeg)
Captions
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Summary
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| Description |
English: The north end of Croft Quarry. The rock being quarried is granite, so the lowest levels are relatively early igneous formations.
The second stage is the clear evidence of glacial erosion of the granite shown by the smoothly curved boundary between the granite and the overlying sedimentary formations. A noticeable feature of the latter is the way they have been deposited preferentially into the hollows of the underlying granite so that the successive layers show less and less curvature, ending with an essentially horizontal top layer. The sedimentary deposits are mainly red mudstone with some thin intermediate layers of lighter coloured deposits. It is significant just how much depth of overburden has had to be removed to get at the granite at this end of the quarry. A more detailed view of part of this formation can be seen in 1136362." |
| Date | |
| Source | From geograph.org.uk |
| Author | Alan Murray-Rust |
| Attribution (required by the license) | Alan Murray-Rust / The north end of Croft Quarry / |
| Camera location |   | View this and other nearby images on: OpenStreetMap |  |
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_heading:135.00&language=en){kind=link}
| Object location | | View this and other nearby images on: OpenStreetMap | |
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_heading:135.00&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 Alan Murray-Rust and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 05:09, 25 February 2011 | | 640 × 479 (229 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=The north end of Croft Quarry The rock being quarried is granite, so the lowest levels are relatively early igneous formations. The second stage is the clear evidence of glacial erosion of the gra |
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