OVERVIEW OF THE IMPACT OF MINING ON THE ... - IIED pubs

• Non-point impact from minefield in far north.
3.24.2 Mining and mineral processing operations
The catchment falls under the Bulawayo Mining District (ZGS, 1995). The main mining operation is Wankie
Colliery, where coal is mined from the Lower Karoo sediments. There is also a coking plant. Tin was mined at
Labyrinth Mine in the south, but not any longer. There also are a few calcite deposits, all now out of production
(Table 3.23).
Table 3.23: Mining Operations in the Deka sub-catchment.
Name Commodity Status Total produced /t Potential Impact
Antenup Calcite Closed 1964 5413.0 Low
Calrho Calcite Closed 1964 12776.0 Low
Gobe Calcite Closed 1964 14968.0 Low
Kalanga Calcite Closed 1966 8499.0 Low
Mwemba/Deka Calcite Closed 1968 13702.0 Low
PJG Calcite Closed 1965 60735.0 Low
Store Calcite Closed 1967 5012.0 Low
Wankie Coal In operation 145149888.0 High
Wankie Pyrite In operation 91276.0 High
See ZGS (1988a) for locations.
There is exploration for diamonds (ZGS, 2001).
3.24.3 Alluvial mining
Neither known nor likely.
3.24.4 Monitoring systems
No public monitoring currently. ZINWA intends to establish a few monitoring points. Wankie Colliery operates
an internal monitoring system.
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