Kusasalethu, formerly Elandsrand

Location of operations: Harmony Elandsrand [map]

Geology

The structure of the orebody on the Far West Rand is dominated by a series of east-trending normal faults with throws of up to 40m, as well as a series of north-north-east striking normal faults with generally smaller displacements in the north-west. Faulting is generally less prevalent than in other Witwatersrand Basin goldfields. The primary reefs exploited are the Ventersdorp Contact Reef (VCR) and the Carbon Leader, separated by 900 to 1 300 metres, increasing from east to west. Secondary targets are the Middelvlei Reef (50 to 75 metres above the Carbon Leader) and the Mondeor Conglomerate Reef Zone, which sub-crops beneath the VCR at Deelkraal and on the western side of Elandsrand.