Overview
| Stage | Production |
| Mine Type | Open Pit |
| Commodities |
|
| Mining Method |
|
| Production Start | ...  |
| Mine Life | 22 years (as of Jan 1, 2016) |
The Mission Complex, an open-pit mine composed of the Mission, Eisenhower, Pima, Mineral Hill and South San Xavier properties and the nearby North San Xavier mine. |
Source:
p. 54,10
The Mining Division of Grupo Mexico, S.A. de C.V. (GMéxico) is controlled by Americas Mining Corporation (AMC) which operates the United States subsidiary - Asarco LLC (Asarco).
Asarco LLC includes the Mission, Ray and Silver Bell Arizona mines.
Contractors
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Summary:
The Mission deposit is a porphyry copper skarn deposit located southwest of the city of Tucson in Pima County, Arizona. A series of Paleozoic sedimentary rocks.
Mineralization is a skarn-related copper porphyry deposit with seams and disseminations of copper carbonates and sulfides with minor zinc, lead and molybdenum minerals in a pyrometasomatic deposit in altered, complexly folded, and faulted Paleozoic limestone and Triassic sedimentary and volcanic formations intruded by Laramide and Tertiary intrusives. There is a thin secondary enrichment zone. The host rock unit is the Scherrer Formation.
Summary:
The Mission Complex, an open-pit mine composed of the Mission, Eisenhower, Pima, Mineral Hill and South San Xavier properties and the nearby North San Xavier mine.
The Mission Complex currently consists of an open pit copper and molybdenum mine that involves drilling, blasting, loading, and haulage activities to both waste rock dumps and crushers. The waste rock is not processed further.
The current pit, 2.5 miles long by 1.5 mile wide and 1,200 feet deep, is situated on 20,000 acres. Benches are 40 feet high.
Source:
Source:
Summary:
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Production:
| Commodity | Product | Units | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Copper
|
Metal in concentrate
|
kt
| ...... | ...... | ...... | 44 | 62 | 68 |
|
Copper
|
Concentrate
|
kt
| ...... | ...... | ...... | 179 | 204 | 271 |
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Operational Metrics:
| Metrics | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|
Total tonnes mined
| ...... | ...... | 42,736 kt | 54,445 kt | 52,292 kt | 47,640 kt |
|
Ore tonnes mined
| ...... | ...... | 15,099 kt | 16,902 kt | 17,385 kt | 18,003 kt |
|
Tonnes milled
| ...... | ...... | 15,099 kt | 16,902 kt | 17,385 kt | 18,003 kt |
|
Stripping / waste ratio
| ...... | ...... | 1.83 | 2.22 | 2.01 | 1.65 |
|
Daily mining rate
| ...... | ...... | 144,000 t | 144,000 t | 144,000 t | 144,000 t |
|
Daily milling capacity
| ...... | ...... | 46.3 kt | 46.3 kt | 53.3 kt | 54.4 kt |
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Reserves at December 31, 2021:
Cut-off grade 0.190% Cu
| Category | Tonnage | Commodity | Grade | Contained Metal |
|
Proven & Probable
|
209,487 kt
|
Copper
|
0.389 %
|
815 kt
|
Corporate Filings & Presentations:
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