Overview
Stage | Production |
Mine Type | Open Pit |
Commodities |
- Copper
- Zinc
- Molybdenum
- Silver
- Lead
|
Mining Method |
|
Production Start | ... |
Mine Life | 2036 |
Antamina mine is one of the 10 largest mines in the world in production capacity.
In February 2024, Antamina’s MEIA was approved allowing for mine expansion & operations to 2036. |
Source:
p. 27
Teck Resources Ltd. indirectly owns 22.5% of the Antamina copper/zinc mine in Peru, with the balance held indirectly by BHP Billiton plc (33.75%), Glencore plc (33.75%) and Mitsubishi Corporation (10%). The participants’ interests are represented by shares of Compañía Minera Antamina S.A. (CMA), the Peruvian company that owns and operates the project.
Contractors
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Summary:
The Antamina polymetallic deposit is skarn-hosted. It is unusual in its persistent mineralization and predictable zonation, and has a southwest-northeast strike length of more than 2,500 metres and a width of up to 1,000 metres. The skarn is well-zoned symmetrically on either side of the central intrusion with the zoning used as the basis for four major subdivisions: a brown garnet skarn, a green garnet skarn, a wollastonite/diopside/green garnet skarn and a marbleized limestone with veins or mantos of wollastonite. Other types of skarn, including the massive sulphides, massive magnetite, and chlorite skarn, represent the remainder of the skarn and are randomly distributed throughout the deposit. The variability of ore types can result in significant changes in the relative proportions of copper and zinc produced in any given year.
The Antamina intrusion (9.8 Ma2) is a multiple phase, quartz monzonite porphyry and has the Antamina Cu-Zn skarn developed around it. There is a nearby intrusion of similar composition with narrow, weakly mineralized skarn 1.5 kilometers northwest at Condorcocha.
Antamina is a polymetallic (copper, zinc and molybdenum predominate) skarn deposit resulting from complex multiple intrusive events. Copper mineralization occurs mainly as chalcopyrite except for some areas of bornite, representing approximately 5% of the deposit. Zinc mineralization generally occurs as sphalerite. Other significant sulphide minerals include molybdeni ........
Summary:
Antamina is a large open pit mining operation using standard mining equipment and methods. Drilling is done with large rotary drills and blasting uses bulk explosives. Electric cable shovels and haul trucks do the principal material movement mining in 15 meters benchs.
The ore is crushed within the pit and conveyed through a 2.7-kilometre tunnel to a coarse ore stockpile at the mill.
Source:
Source:
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Source:
Summary:
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Pipelines and Water Supply
Source:
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Reserves at December 31, 2023:
Open pit reserve estimates were prepared assuming long-term metal prices of US$3.54/lb copper, US$1.15/lb zinc, US$11.10/lb molybdenum and US$21.46/oz silver. Open pit and underground resource estimates were prepared assuming long-term metal prices of US$3.50/lb copper, US$1.30/lb zinc, US$13.30/lb molybdenum and US$24.60/oz silver.
Category | Tonnage | Commodity | Grade | Recoverable Metal |
Proven & Probable
|
226,200 kt
|
Copper
|
0.94 %
|
430 kt
|
Proven & Probable
|
67,700 kt
|
Zinc
|
1.9 %
|
240 kt
|
Proven & Probable
|
158,400 kt
|
Molybdenum
|
0.034 %
|
10 kt
|
Proven & Probable
|
226,200 kt
|
Silver
|
10.7 g/t
|
13,650 koz
|
Measured
|
227,400 kt
|
Copper
|
0.76 %
|
|
Measured
|
44,300 kt
|
Zinc
|
1.5 %
|
|
Measured
|
183,100 kt
|
Molybdenum
|
0.02 %
|
|
Measured
|
227,400 kt
|
Silver
|
10.3 g/t
|
|
Indicated
|
445,600 kt
|
Copper
|
0.87 %
|
|
Indicated
|
152,100 kt
|
Zinc
|
1.8 %
|
|
Indicated
|
293,500 kt
|
Molybdenum
|
0.025 %
|
|
Indicated
|
445,600 kt
|
Silver
|
12 g/t
|
|
Inferred
|
1,186,000 kt
|
Copper
|
1.03 %
|
|
Inferred
|
382,000 kt
|
Zinc
|
1.4 %
|
|
Inferred
|
804,000 kt
|
Molybdenum
|
0.021 %
|
|
Inferred
|
1,186,000 kt
|
Silver
|
11.3 g/t
|
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HME Type | Model | Quantity | Ref. Date | Source |
Drill
|
.......................
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.......................
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Feb 1, 2017
|
p.11
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Drill
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.......................
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Feb 1, 2017
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p.11
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Drill
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.......................
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Feb 1, 2017
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p.11
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Shovel
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.......................
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Feb 1, 2017
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p.11
|
Shovel (hydraulic)
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.......................
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.......................
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Feb 1, 2017
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p.11
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Truck (haul)
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.......................
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Mar 21, 2023
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p.1
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Truck (haul)
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.......................
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Feb 1, 2017
|
p.11
|
Truck (haul)
|
.......................
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Feb 1, 2017
|
p.11
|
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Mine Management:
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Mar 12, 2024
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Staff:
Employees | Contractors | Total Workforce | Year |
|
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|
2022
|
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|
2021
|
Corporate Filings & Presentations:
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