Overview
| Status | Closing / Closed |
| Mine Type | Stockpile |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2021 |
With the end of mining at Buzwagi in the third quarter of 2021, as previously reported, Barrick has ceased to include production or non-GAAP cost metrics for Buzwagi from October 1, 2021 onwards.
Updated Mine Closure Plan submitted to the Mining Commission - approval pending.
Progressive rehabilitation has progressed and the process plant cleaned and fully decontaminated. |
Source:
p. 19-20
| Company | Interest | Ownership |
|
Government of Tanzania
|
16 %
|
Indirect
|
|
Barrick Gold Corp.
|
84 %
|
Indirect
|
|
Twiga Minerals Corporation Ltd.
(operator)
|
100 %
|
Direct
|
On September 17, 2019, Barrick acquired all of the Acacia Mining plc. Acacia became a wholly-owned subsidiary of Barrick called Barrick TZ Limited.
On January 24, 2020, Barrick announced that the Company had ratified the creation of Twiga Minerals Corporation (“Twiga”), the operating company formed to manage the Tanzania mines. Effective January 1, 2020, the GoT received a free carried shareholding of 16% in each of Barrick’s Tanzanian mines (Bulyanhulu, Buzwagi and North Mara).
Contractors
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Deposit Type
- Vein / narrow vein
- Porphyry
Summary:
Buzwagi is shear-hosted quartz-veined deposit hosted in porphyritic granite. It is found in Nzega belt in the lower portion of the Nyanzian system. This belt is composed of basalt and intermediate volcanic intruded by granitoid masses which is dominated by deep-seated structure.
The granite that hosts the majority (85%) of the Buzwagi deposit is a medium to coarse feldspar granite with zone orthoclase crystals up to 4cm. This is predominantly underlain by medium- to coarse-grained granite intruding mafic flow and pillow flow basalts, within which there are two other distinctive units, including a tonalite silt-like body, which is occasionally mineralised with quartz veining, sericite alteration and sulphide mineralisation. Rock units dip to the east at c 60° in the southern portion of the lease area and 65-75° in the northern portion.
Several faults traverse the Buzwagi area. The most significant orientation of faulting is northwestsouth-east, parallel or sub-parallel to the Nzega shear (and probably related to it).
The Buzwagi deposit is hosted within or near a north-south brittle-fracture shear corridor that is up to 450m wide and includes two ore types: shear-hosted, porphyry-hosted.
As such, Buzwagi has been separated into 12 structural domains, within which mineralisation is segregated.
Domain 1 (which accounts for up to 50% of Buzwagi’s in-situ gold) is up to 1,000m long and 30m wide (subject to pinching and swellin ........
Summary:
The Buzwagi site is located in north-western Tanzania, East Africa. Buzwagi is the second largest mining operation in Tanzania and the largest single open pit in the country, which is one of the fastest emerging gold producers in Africa and the continent’s third-largest gold producer after South Africa and Ghana.
Buzwagi will continue to process stockpiles until mid-2021. Following completion of the mining of the final cut at the bottom of the pit in the first quarter of 2019, the mill feed will be exclusively from stockpiles.
An owner-operated fleet is used in mining. There are three excavators, fifteen 150-tonne haul trucks and three blast hole rigs.
Source:
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Source:
Summary:
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Production:
With the end of mining at Buzwagi in the third quarter of 2021, as previously reported, Barrick has ceased to include production or non-GAAP cost metrics for Buzwagi from October 1, 2021 onwards.
| Commodity | Product | Units | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Gold
|
Metal in doré
|
koz
| ...... | ...... | ...... | 145 | | |
|
Gold
|
Metal in conc./ doré
|
koz
| | | | | 269 | 162 |
|
Copper
|
Metal in concentrate
|
k lbs
| | | | | ...... | ...... |
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Operational Metrics:
| Metrics | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Tonnes processed
| ...... | ...... | 3,422 kt | 4,526 kt | 4,256 kt | 4,404 kt |
|
Total tonnes mined
| ...... | ...... | 105 kt | 479 kt | 15,368 kt | 21,585 kt |
|
Ore tonnes mined
| ...... | ...... | 45 kt | 391 kt | 9,309 kt | 5,317 kt |
|
Waste
| ...... | ...... | 59 kt | | | |
|
Annual processing capacity
| ...... | ...... | 4.4 Mt | | | 4.4 Mt |
|
Daily processing capacity
| ...... | ...... | | 12,000 t | 12,000 t | 12,000 t |
|
Stripping / waste ratio
| ...... | ...... | | | | 2 |
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Reserves at December 31, 2020:
| Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
|
Proven & Probable
|
Total
|
2 Mt
|
Gold
|
0.76 g/t
|
0.05 M oz
|
|
Measured
|
Total
|
2 Mt
|
Gold
|
0.76 g/t
|
0.05 M oz
|
|
Indicated
|
Total
|
4 Mt
|
Gold
|
1.25 g/t
|
0.17 M oz
|
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Corporate Filings & Presentations:
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