Ongeluk volcanism in relation to the Kalahari manganese deposits
D.Phil. === The Ongeluk Formation is a laterally extensive sequence of ≈2200 Ma tholeiitic basaltic andesites in the upper Griqualand West Sequence of the northern Cape Province. The stratigraphic thickness is about 500 m and the Ongeluk Formation underlies the ore-bearing strata of the Kalahari Man...
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2011
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| Online Access: | http://hdl.handle.net/10210/4101 |