The mine is situated in the Magisterial District of Randwest, some 60km west of Johannesburg in the Gauteng province of South Africa. Kloof is accessed via the N12 highway between Johannesburg and Potchefstroom, close to Westonaria. The area’s topography is relatively flat and the vegetation is classified as Bankenveld, consisting mostly of grassland. Livestock farming predominates in the surrounding area. Kloof is an established, shallow to ultra-deep-level gold mine. Kloof, in its current form, dates from April 2000 when the Venterspost (1939), Libanon (1945), Kloof (1968) and Leeudoorn (1993) mines were amalgamated. The current mine infrastructure consists of five producing shaft complexes that mine open ground and pillars (white areas) with the deepest operating level some 3,347m below surface (45 Level at 4 Shaft), and two gold processing plants. The principal mining takes place on the VCR, with the remainder made up from MVR, KR and Libanon Reef (LR).

Mineralisation characteristics

Auriferous and uraniferous palaeo-placer conglomerates, that are locally termed reefs. Laterally continuous with relatively long-range predictability. Clear patterns of mineralisation governed by sedimentary characteristics.

Depositional environment

The palaeo-placer originated from a braided stream environment. The deposition was structurally controlled along a basinal edge.

Infrastructure

Five operating shaft complexes (one is a tertiary shaft system and three are sub-shaft systems).

Mining method

Scattered conventional breast, mini-longwall stoping with closely spaced dip pillars (110m x 40m) and regional pillars (100m x 35m). SRD mining.

Mineral processing

Two gold plants and a centralised elution and carbon treatment facility at the No 2 Plant.

 Samples foto: Ventersdorp Contact Reef Samples

Gold Mineral Resources and Mineral Reserves

On map.