Groundwater vulnerability of the Windhoek aquifer : a planning tool for the City of Windhoek, Namibia / by the City of Windhoek - Water Services

Includes references, bibliography and appendices

The thin immature soil horizon (circa 5–20 cm) over the Windhoek schist implies that most areas of the city are built directly on bedrock, making the aquifer vulnerable. The schists and amphibolites of the Kuiseb Formation underlying the city of Windhoek are poor aquifers, but can be used as storage facilities in the dry and high evaporation environment of the central Namibian highlands. The Kuiseb schist encompasses several lithologies, dominated by garnet-muscovite-chlorite-biotite schist, with a distinctive pervasive cleavage, which makes the underlying rocks permeable to percolating water and fluids from the surface into the aquifer. Faulting also plays a significant role by increasing the fracture density of the fissile schist, and providing links between the surface and the aquifer below.

Prof. Dr. Jürgen Kirchner W019098 Donation