Figure 98C – VCR infill at the base of a Ventersdorp age ravine (stope hight, approximately 1.5 m) (East Driefontein Gold Mine S. Africa)
Figure 98C – VCR infill at the base of a Ventersdorp age ravine (stope hight, approximately 1.5 m) (East Driefontein Gold Mine S. Africa)