Major South African gold-mining companies have recently turned to 3-D seismic surveys for mine planning in Witwatersrand Basin (e.g., Pretorius et al., 1997). We present examples showing that 3-D seismic data provide the gross structure and depth of the prospective stratiform ore horizons (the original objective of such surveys), and that careful analysis of 3-D seismic attributes—backed up with borehole control, direct geologic observations, and synthetic seismograms—can provide important information on small-scale faulting (throws of 10–20 m) and lithologic variations of the ore-zone conglomerates.

The Target gold project (Gray et al., 1994) is immediately north of the Welkom gold field,...

First Page Preview

First page PDF preview
You do not currently have access to this article.