.
Location: 22 km N from Springbok, South Africa
1 Main RoadNababeepSouth Africa8265
Stay on top of the latest gold discoveries. Examine the latest updates on drilling outcomes spanning various commodities.
Mining scale, mining and mill throughput capaciites.Full profiles of select mines and projects.
Shaft depth, mining scale, backfill type and mill throughput data.Full profiles of select mines and projects.
Equipment type, model, size and quantity.Full profiles of select mines and projects.
Camp size, mine location and contacts.Full profiles of select mines and projects.
The Rietberg Mine is located on the southern limb of the Ratelpoort Synform, the rocks regionally have a strike of N45°E and dips to the north. Numerous north-south striking faults, structures and pegmatites are present. The orebody is located at the intersection of a so-called ENE striking “Steep Structure”.The Rietberg Mine is stratigraphically situated within the younger Ratelpoort Quartzite and Schist succession at the top of the O’Kiep Copper District Stratigraphic column. The Copper bearing minerals at Rietberg consist predominantly of Bornite and Chalcopyrite. It was found that a slight increase in copper content exists towards the “footwall” of the mineralised body, i.e., bottom-loaded with the apparent prevalence of Chalcopyrite over Bornite. The Rietberg Mine has a pipe-like geometry with a possible feeder pipe towards the bottom and some silllike bodies closer to surface connected to the pipe.Strong geological and mineralisation continuity exists, the nature and geometry of the mineralised intrusive are well understood and applied during exploration, resource definition and estimation processes.The Cu bearing minerals at Rietberg consist predominantly of Bornite and Chalcopyrite within the mafic/ultramafic Koperberg Suite rocks. Some internal felsic pegmatites and other rock type occurs as lenses within the orebody. It is expected that the “internal” waste will have no major effect on the processing. Procedures are in place to remove most of the internal waste before processing.The Cu mineralisation is strongly controlled and restricted to the mafic/ultramafic rocks of the Koperberg Suite. The contacts with the felsic host/country rocks (granite, gneiss and granulites) are generally sharp. The mafic rocks are intrusive and were structurally controlled and generally occurs as pipe-, sill- and dyke-like bodies. Generally, dips steeply to the north. Geological and mineralisation exhibits strong continuity over hundreds of meters. The geological controls are well understood.
- subscription is required.
