African Geographic Pictures Collection
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| Image number: | 2311 |
| Feature : | case hardening |
| Grouping : | weathering |
| Discipline : | geomorphology |
| Year : | 1999 |
| Locality : | Wadi Sodmein |
| Country : | Egypt |
| Region - tribe : | Quseir |
| Physiographic region : | Red Sea Mountains |
| Notice : | Case hardening or surface hardening is the process of hardening of the outside of a rock fragment or boulder by precipitation of mineral constituents migrating from the center to the edge. The edge becomes hard, the nucleus soft and is subject to erosion. |
| Reference : | Moeyersons, Jan, 1999 Image 2311. In : Moeyersons, Jan : "African Geographic Pictures", http://www.africamuseum.be/de/research/collections_libraries/earth_sciences/collections/geopic" |