Overview
Stage | Production |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
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Production Start | ... |
Mine Life | 2058 |
Quellaveco is one of the largest mines to be developed across the mining industry in many years.
Quellaveco is fully digitalised and is either automated, or automation-ready, with all data integrated and accessible in real time.
In the fourth quarter 2023 the Quellaveco copper operation was ramp up to full capacity.
Quellaveco has a new plant that has been producing molybdenum since April 2023 and commercial production was achieved in November 2023. |
Source:
p. 22
Quellaveco is a joint venture between Anglo American (60%) and Mitsubishi (40%).
Contractors
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Summary:
The Quellaveco deposit is porphyry copper-molybdenum orebody with an elongated mineralised zone. Primary sulphide mineralisation dominates the deposit and is successively overlain by a secondary supergene copper mineralisation blanket. This is followed by low grade copper-bearing oxides that are capped by barren ignimbrites. At least five stages of intrusion are recognised; the oldest intrusives correspond to regional granodiorite surrounding the main orebody. Three syn-mineralisation intrusions of monzonitic to dacitic composition host most of the mineralisation. All of these are cut by a suite of late post-mineral intrusives.
The Quellaveco deposit, located near the northern end of the Paleocene to early Eocene porphyry copper belt of the central Andes (Sillitoe, 1988; Clark et al., 1990), is centered on a multiphase quartz monzonite porphyry stock emplaced into an equigranular granodiorite pluton, which itself cuts rhyolitic volcanic rocks assigned to the Late Cretaceous to early Paleocene Toquepala Group (Estrada, 1975; Guerrero and Candiotti, 1979; Candiotti, 1995). The pluton, which crops out over >3 km2 in the vicinity of the Quellaveco stock, as well as extending northward beneath postmineral ignimbrite and gravel cover, is part of the granodioritic to monzogranitic Yarabamba superunit of the Coastal batholith (Pitcher, 1985). Phenocrysts in the porphyries are made up of abundant plagioclase, quartz, and biotite, plus scattered K-feldspar and hornblende, ........
Summary:
Mining from the Quellaveco deposit will involve excavation of a huge open-pit. The final pit dimensions are anticipated to be: approximately 3000m (N-S) by 1700m (E-W), and 930m deep.
Mining of the ore body by open pit methods will require diversion of the Asana River around the Quellaveco deposit via a canal and tunnel system 7.2 km long, returning the flow downstream of the proposed waste rock disposal area.
Excavation of the pit will produce more than a million tons of waste rock, which will be deposited in the Asana River riverbed, downgradient of the open pit and the subsequent pit lake. Waste rock piles will reach an average height of 320m.
After mine closure, the pit will fill with water forming a lake with a maximum depth of about 384m.
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:
Mineral Resources are quoted above the 0.18% TCu cut-off grade.
Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
Proven
|
In-Situ (OP)
|
428.8 Mt
|
Copper
|
0.7 %
|
3,002 kt
|
Proven
|
In-Situ (OP)
|
428.8 Mt
|
Molybdenum
|
0.021 %
|
90 kt
|
Probable
|
Stockpiles
|
25.4 Mt
|
Copper
|
0.64 %
|
164 kt
|
Probable
|
In-Situ (OP)
|
1,141 Mt
|
Copper
|
0.44 %
|
5,047 kt
|
Probable
|
Stockpiles
|
25.4 Mt
|
Molybdenum
|
0.012 %
|
3 kt
|
Probable
|
In-Situ (OP)
|
1,141 Mt
|
Molybdenum
|
0.015 %
|
174 kt
|
Proven & Probable
|
In-Situ (OP)
|
1,570 Mt
|
Copper
|
0.51 %
|
8,049 kt
|
Proven & Probable
|
In-Situ (OP)
|
1,570 Mt
|
Molybdenum
|
0.017 %
|
264 kt
|
Measured
|
In-Situ (OP)
|
59.2 Mt
|
Copper
|
0.39 %
|
231 kt
|
Measured
|
In-Situ (OP)
|
59.2 Mt
|
Molybdenum
|
0.013 %
|
8 kt
|
Indicated
|
In-Situ (OP)
|
644.5 Mt
|
Copper
|
0.39 %
|
2,513 kt
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Indicated
|
In-Situ (OP)
|
644.5 Mt
|
Molybdenum
|
0.016 %
|
103 kt
|
Measured & Indicated
|
In-Situ (OP)
|
703.7 Mt
|
Copper
|
0.39 %
|
2,744 kt
|
Measured & Indicated
|
In-Situ (OP)
|
703.7 Mt
|
Molybdenum
|
0.016 %
|
111 kt
|
Inferred
|
In-Situ (OP)
|
1,186 Mt
|
Copper
|
0.41 %
|
4,888 kt
|
Inferred
|
In-Situ (OP)
|
1,186 Mt
|
Molybdenum
|
0.017 %
|
202 kt
|
Mine Management:
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Mar 22, 2024
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Staff:
Employees | Year |
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2023
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2022
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Corporate Filings & Presentations:
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