Midlands Greenstone Belt.

1. It’s the largest of all the Archean Greenstone Belts in Zimbabwe (located at the Centre of Zimbabwe).

2. Most productive gold belt (>400 tonnes Au mined to date) in Zimbabwe and stretches for 150km with average width of 50km (altitude varies from 900-1300m above sea level.

3. Stretches from Kwekwe to Kadoma, touching the Gweru greenstone belt to the south and the Chegutu greenstone belt to the north.

Midlands Greenstone Belt General Geology.
Comprises of the following Litho-stratigraphic units:
a) Rhodesdale Granitoid Gneiss Complex;
b) Greenstone Belt Metavolcanics lithologies (Bulawayan);
c) Shamvaian Sediments;
d) Tonalitic granitoid plutons and other major felsic intrusions.

Motor Deposit Orebody Characteristics.
- General North-South trending;
- Dip 70 degrees west;
- Plunges 65 degrees southwest;
- Average width 15-20m;
- Orebody structurally and lithologically controlled;
- Gold mineralised units include meta-basalts, sandstones, black shale and quartz veins.

Cam and Motor Main Lithological Units.
1. Metavolcanics (Metabasalts, Metadolerites);
2. Metasediments (Sandstones, greywacke, arkose);
3. Black shale sediments with intercalations of sandstone in places;
4. Quartz veins;
5. Ferricretes (grits);
6. Conglomerates.

Mining Design Parameters.
- Mine Designs done following the Pit Optimisation using Whittle software;
- Bench height – 10m;
- Benches mined in 5m flitches;
- Ramp width – 12m;
- Ramp gradient – 1:10;
- Bench face angle -70 degrees;
- Berm width – 5m;
- Mine Call Factor (MCF)- 85%.

Open Pit Optimisation & Design -200m dip. Pit at level 1140ml.

Mining Equipment.
- 5 Excavators (45 -60 tonner);
- 16 Dump Trucks (20-40t sizes);
- 3 Front End Loaders;
- Backhoe Excavator x 1;
- Grader x 1;
- Dozer x 1;
- Water Bowser x 3.

Ore types.
Three forms of ore exist in the Ore at Cam and Motor.
1) Oxides ore – surface to 30m depth (treatment is straight CIL);
2) Transition ore – 30 to 70m depth (treatment is CIL and Flotation);
3) Sulphides ore - Deeper than 70m (treatment is CIL, Flotation and Roasting or Autoclave technology).

Processing Plant Phases.
1) Phase 1- Direct Carbon In Leach;
2) Phase 2 - CIL and Flotation;
3) Phase 3 – CIL & Flotation, Roasting/Autoclave Technology.

Processing Plant Equipment.
1) Plant Supplied by Hongxing from China.
2) Primary Jaw Crusher with a capacity to crush 300tph.
3) Secondary crushers with a 2 Cone Crushers with Capacity to do 349tph and 227tph respectively.
4) Two Ball Mills (12x 15 feet) with a capacity to mill 1250tpd each.
5) Thickener with a capacity to hold 1500tpd.
6) 10 CIL tanks with 385m3 Capacity each.
7) Elution Plant Capacity is 3t every 18hrs.