Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2027 |
Mining operations commenced at the refractory sulphide Cam & Motor pits in 2022, paving the way for the commissioning and production of the BIOX plant in 2022. The BIOX plant was successfully brought into production in February 2022 and commissioned in April 2022. |
Source:
p. 4
Contractors
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Deposit Type
- Vein / narrow vein
- Sandstone hosted
- Magmatic
Summary:
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.
Summary:
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.
Source:
Flow Sheet:
Summary:
- subscription is required.
Production:
| Commodity | Units | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Gold
|
kg
| ...... | ...... | ...... | ...... | 758 | 974 | 856 |
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Operational Metrics:
| Metrics | 2017 |
|
Daily milling capacity
| 2,500 t |
|
Daily processing capacity
| 200 t |
|
Annual ore mining rate
| 540 kt |
Reserves at December 31, 2021:
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
2,379,213 t
|
Gold
|
6.33 g/t
|
15,084,107 kg
|
|
Probable
|
379,424 t
|
Gold
|
4.28 g/t
|
1,623,935 kg
|
|
Proven & Probable
|
2,741,678 t
|
Gold
|
6.09 g/t
|
16,708,042 kg
|
|
Measured
|
704,059 t
|
Gold
|
5.27 g/t
|
3,713,779 kg
|
|
Indicated
|
679,880 t
|
Gold
|
2.99 g/t
|
2,031,945 kg
|
|
Inferred
|
960 t
|
Gold
|
2.28 g/t
|
1,486,195 kg
|
Corporate Filings & Presentations:
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