oa Tracing South African Gold Distribution by Weight of Evidence Modelling

Gold is associated with a diversity of geological parameters and regional settings. Because of this<br>diversity, the mode of occurrence rather than genesis, age, or regional setting has been largely<br>documented for gold. Known gold distribution in South Africa appears largely structurally controlled<br>and the bulk of occurrences are in the central (Wits Basin) and eastern (Barberton, Murchison, etc.)<br>parts of the Kaapvaal Craton (Fig.1). Vast areas of the country remain therefore 'devoid of' gold and it<br>is unclear whether this reflects a lack of prospectivity or favorable geologic environments. Relative to<br>elsewhere in Africa there is good geological and geophysical data that can be suitably used to assess<br>the probability of (economic) gold occurrence over South Africa.