African Geographic Pictures Collection
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| Image number: | 2285 |
| Feature : | sub-aerial weathering |
| Grouping : | weathering |
| Discipline : | geomorphology |
| Year : | 1999 |
| Locality : | Sodmein cave |
| Country : | Egypt |
| Region - tribe : | Quseir |
| Physiographic region : | Red Sea Mountains |
| Notice : | This big boulder was partly buried under dust and finer rockfall. The not buried part of the boulder to the right side of the picture is much more fissured, shows a much more irregular surface than the buried part and is darker in color because of the presence of 'desert varnish', a coating of iron and manganise. The part of the boulder buried, shows the presence of a flake mantle as can be encountered in cases of speroidal weathering, onion weathering, core stone weathering. It is rather exceptional to find limestone affected by this type of weathering. |
| Reference : | Moeyersons, Jan, 1999 Image 2285. In : Moeyersons, Jan : "African Geographic Pictures", http://www.africamuseum.be/nl/research/collections_libraries/earth_sciences/collections/geopic" |