African Geographic Pictures Collection
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| Image number: | 218 |
| Feature : | Bornhardt |
| Grouping : | differential erosion |
| Discipline : | geomorphology |
| Year : | 1971 |
| Locality : | Yakoko |
| Country : | Nigeria |
| Region - tribe : | Shebshi Mountains |
| Physiographic region : | West-African rain belt |
| Notice : | Dome-like granitic rock inselberg. Dome forms are often attributed to exfoliation, resulting from pressure release when the rock is liberated from its overburden by erosion. Possibly, the dome form reflects the morphologie of the granitic batholith roof. |
| Reference : | Moeyersons, Jan, 1971 Image 218. In : Moeyersons, Jan : "African Geographic Pictures", http://www.africamuseum.be/de/research/collections_libraries/earth_sciences/collections/geopic" |