Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 2033 |
The Tasiast mine is an open pit operation, which processes ore via mill.
June 30, 2023 - Tasiast 24k construction and initial commissioning is now complete, on schedule and on budget. The process plant has regularly achieved the designed 24,000 t/d throughput for sustained periods of time. The operation is expected to ramp-up for the balance of the year to consistently achieve 24,000 t/d (average) on an annual basis. |
Source:
p. 33
| Company | Interest | Ownership |
|
Kinross Gold Corp.
|
100 %
|
Indirect
|
|
Tasiast Mauritanie Limited S.A.
(operator)
|
100 %
|
Direct
|
The Tasiast mine is owned and operated by Tasiast Mauritanie Limited S.A. (TMLSA), a wholly owned subsidiary of Kinross.
Contractors
- Subscription is required.
Deposit Type
- Orogenic
- Vein / narrow vein
Summary:
The Tasiast district is situated in the south-western corner of the Reguibat Shield, which is a northeast-trending crustal block of the West African Craton. The Reguibat Shield contains the oldest rocks in Mauritania and consists of two major subdivisions separated by a crustal-scale shear zone representing a major accretionary boundary. The southwestern part (which hosts the Tasiast deposits) consists of Mesoarchean to Paleoproterozoic rocks that include high-grade granite-gneiss and greenstone belt assemblages. The north-eastern part of the shield consists of younger Paleoproterozoic to Neoproterozoic successions, which hosts many orogenic gold occurrences in the West African Craton. This region is characterized by a series of volcano-sedimentary belts and associated batholithic-scale granitic intrusive suites of different ages cut by major shear zones.
The district scale geology is characterized by basement rocks, largely composed of orthogneiss, overlain by deformed north-striking metavolcanic and metasedimentary successions intruded by stocks and plutons of mafic to intermediate composition (granite-greenstone belts). All of the rock units are cut by unfoliated and post-mineral mafic (gabbroic) dikes.
The Tasiast Mine consists of two deposits hosted within distinctly different rock types, both situated within the hanging wall of the Tasiast thrust. The Piment deposits are hosted within metasedimentary rocks including metaturbidites and banded iron formation. The West B ........
Summary:
Ore and waste rock is mined in 10 metre benches by conventional open pit methods primarily from the West Branch pit. Tasiast currently operates a load and haul fleet of 46 CAT 793D (220 ton) trucks, five Komatsu 785 (92 t) and five CAT 6060 shovels plus two RH340B excavators. Blasting techniques, including presplit and buffer hole blasting, are employed to protect the pit walls.
Ore and waste rock is mined by conventional open pit methods from two pits (West Branch and Piment). Prior mining has taken place in West Branch, Piment and several other smaller pits at Tasiast. From September 2010, when Kinross acquired the property to the end of 2022, a total of 821 million tonnes of material have been mined from various pits, including 53 million tonnes in 2016, 75 million tonnes in 2017, 87 million tonnes in 2018, 85 million tonnes in 2019, 58 million tonnes in 2020, 63 million tonnes in 2021, and 61 million tonnes in 2022.
The existing shovel and haul truck fleets will be used for the duration of mining and no replacement of this equipment is anticipated. Equipment life has been projected from actual operating hours, with estimates of future usage based on the mine plan.
Waste rock is used for haul road and tailings dam construction as needed. The existing road network is well-developed, and requires continued maintenance. Additional roads will also be required throughout the life of the mine. These roads will be constructed using the current ........
Source:
p.168-169
Source:
- subscription is required.
Flow Sheet:
Summary:
- subscription is required.
Production:
Gold production in 2021 decreased compared to 2020, due to the temporary suspension of milling operations as a result of the mill fire on June 15, 2021. Milling activities restarted in the fourth quarter of 2021.
| Commodity | Units | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|
Gold Equivalent
|
oz
| ...... ^ | ...... | ...... | ...... | ...... | 250,965 | 243,240 |
All production numbers are expressed as metal in doré.
^ Guidance / Forecast.
- Subscription is required.
Operational Metrics:
| Metrics | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|
Daily milling capacity
| ...... | ...... | | | 15,000 t | 12,000 t |
|
Ore tonnes mined
| ...... | ...... | ...... | 4,838 kt | 4,920 kt | 8,206 kt |
|
Waste
| ...... | ...... | ...... | 53,298,848 t | 80,539,091 t | 79,245,000 t |
|
Tonnes processed
| ...... | ...... | ...... | 5,349 kt | 5,226 kt | 5,692 kt |
^ Guidance / Forecast.
- Subscription is required.
Reserves at December 31, 2022:
Mineral reserves Cut-off grade is 0.7 g/t Au.
Mineral resources are estimated using appropriate cut-off grades based on a gold price of $1,700.00 per ounce and a silver price of $21.30 per ounce.
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven
|
54,519 kt
|
Gold
|
1.2 g/t
|
2,087 koz
|
|
Probable
|
53,529 kt
|
Gold
|
2.1 g/t
|
3,650 koz
|
|
Proven & Probable
|
108,048 kt
|
Gold
|
1.7 g/t
|
5,737 koz
|
|
Measured
|
8,784 kt
|
Gold
|
1 g/t
|
272 koz
|
|
Indicated
|
36,416 kt
|
Gold
|
1.1 g/t
|
1,230 koz
|
|
Measured & Indicated
|
45,200 kt
|
Gold
|
1 g/t
|
1,502 koz
|
|
Inferred
|
18,565 kt
|
Gold
|
2.4 g/t
|
1,443 koz
|
Pipelines and Water Supply
Source:
- subscription is required.
| HME Type | Model | Size | Quantity | Ref. Date |
|
Drill
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Oct 31, 2019
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Drill
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Oct 31, 2019
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Drill
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Oct 31, 2019
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Drill
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Oct 12, 2023
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Excavator
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Oct 10, 2019
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Excavator
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Dec 31, 2022
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Loader
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Oct 12, 2023
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Shovel (hydraulic)
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Dec 31, 2022
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Truck (haul)
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92 t
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Dec 31, 2022
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Truck (haul)
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220 t
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Dec 31, 2022
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Truck (haul)
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Dec 31, 2022
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- Subscription is required.
Mine Management:
| Job Title | Name | Profile | Ref. Date |
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Jun 14, 2023
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Jun 14, 2023
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Jun 14, 2023
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Jun 14, 2023
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- Subscription is required.
Staff:
| Employees | Contractors | Total Workforce | Year |
|
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2022
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2021
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2020
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2019
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2018
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Corporate Filings & Presentations:
- Subscription is required.
- Subscription is required.