African Geographic Pictures Collection
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| Image number: | 1328 |
| Feature : | boulder slope |
| Grouping : | slopes and slope deposits |
| Discipline : | geomorphology |
| Year : | 1999 |
| Locality : | Olifantshoek |
| Country : | South-Africa |
| Region - tribe : | Northern Cape |
| Physiographic region : | Vaal & Orange River basin |
| Notice : | notice This is the precambrian substrate on which the Kalahari sand sea rests. A long weathering period gave rise to corestone weathering, producing the subrounded blocks. |
| Reference : | Moeyersons, Jan, 1999 Image 1328. In : Moeyersons, Jan : "African Geographic Pictures", http://www.africamuseum.be/de/research/collections_libraries/earth_sciences/collections/geopic" |