stripes
The Tatasberg complex consists of granite and syenite (Kroner and Blignault, 1976). Brief petrographic details on the granites and syenites indicate that the former contain aegirine and riebeckite, as identified by X-ray diffraction (Bernasconi, 1981).
BERNASCONI, A. 1981. The Marinkas Kwela alkali-granite intrusive, a probable porphyry molybdenum system of Cambrian age, Namibia. Mineralium Deposita, 16: 447-54.BERNASCONI, A. 1986. The Marinkas Kwela alkali intrusive - a porphyry molybdenum system of Cambrian age in southern South West Africa. In: C.R. Anhaeusser and S. Maske (eds), Mineral Deposits of Southern Africa, 2: 1587-91. The Geological Society of South Africa, Johannesburg.KRONER, A. and BLIGNAULT, H.J. 1976. Towards a definition of some tectonic and igneous provinces in western South Africa and southern South West Africa. Transactions of the Geological Society of South Africa, 79: 232-8.