Overview
Stage | Permitting |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Mine Life | 18 years (as of Jan 1, 2020) |
As of November 10, 2022, Capstone Copper Corp. announced the Mantover de Santo Domingo District Integration Plan which showcases the path towards creating a world-class mining district in the Atacama region of Chile, targeting over 200,000 tonnes per year of low-cost copper production with the potential to also become one of the largest and lowest cost battery grade cobalt producers in the world.
The fully-permitted Santo Domingo project is located 35 kilometres northeast of the Mantoverde mine which is currently undergoing construction of a 32,000 tonne per day sulphide concentrator with wet commissioning expected in late 2023. Following the completion and successful ramp-up of the Mantoverde Development Project, the Company’s next phase of transformational growth will be a construction decision and integration of Santo Domingo. |
Latest News | Ecora Resources PLC Announces Portfolio Update March 6, 2024 |
Source:
p. 5
On March 24, 2021, Capstone consolidated a 100% ownership interest in 0908113 B.C. Ltd. (“Acquisition Co.”) by purchasing the remaining 30% ownership interest from Korea Resources Corporation (“KORES”), resulting in the elimination of the non-controlling interest (“NCI”) in Acquisition Co. Minera Santo Domingo SCM, a wholly owned Chilean subsidiary of Acquisition Co, holds the Santo Domingo copper-iron project in Chile.
On 23 March, 2022, Mining Corp. (“Old Capstone”) announced the successful completion of transaction combining Old Capstone and Mantos Copper (Bermuda) Limited (“Mantos”), (the “Transaction”). Mantos has been renamed Capstone Copper Corp. (“Capstone Copper”), is headquartered in Vancouver, B.C.
Contractors
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Deposit Type
- IOCG
- Vein / narrow vein
- Skarn
Summary:
Mineralization at Santo Domingo occurs primarily as iron oxide–copper–gold (IOCG) deposits with related vein and skarn bodies.
To date, four deposits, three of which support Mineral Reserves, and a number of prospects have been identified in the Project area.
Santo Domingo Sur
The andesitic flows and tuffs are the primary host to mineralization at Santo Domingo Sur. Mineralization consists of thick semi-massive to massive iron oxide mantos that have replaced the tuffaceous rocks. The stratigraphic sequence of andesitic flows and tuffs dips gently (at an angle of approximately 15°) towards the north–northwest under gravel cover.
Mineralization occurs in the form of copper-bearing semi-massive to massive iron oxide mantos with minor veins and breccias. The mantos are zoned from an outer rim of specular hematite toward a magnetite-rich core.
Drilling has identified a 150 m to 500 m thick, copper-bearing, specularite–magnetite sequence covering an area of approximately 1,300 m by 800 m, and traced to a depth of approximately 525 m below surface. Mineralization consists of stacked chalcopyrite bearing, specularite-magnetite mantos within tuff and tuffaceous sediments overlain by andesitic flows.
The mantos consist of semi-massive to massive specularite and magnetite layers with clots and stringers of chalcopyrite, that range in thickness from approximately 4 m to 20 m. The upper parts of the manto sequence dire ........
Summary:
The mine is scheduled to work 7 days per week, 365 days per year. Each day will consist of two 12-hour shifts. Four mining crews will cover the operation.
The final pit design was based on a LG shell that used a copper price of $3.00/lb and $100/t for magnetite concentrate. Two pits, the Santo Domingo pit and the Iris Norte pit, were designed. The Santo Domingo pit will have four phases; three mining phases are planned for the Iris Norte pit. These values were used only for mine design not the economic analysis.
A road width of 40 m was selected to accommodate 290 t trucks. NCL used a 10% road gradient which is common in the industry for this type of truck. The current mine plan is designed with 12 m benches stacked to 24 m (i.e. double benching) for the fresh rock material. Mining costs are based on blasting 12 m benches for the waste zones and for the ore.
Additional 40 m wide safety berms were included in the design when the slope height exceeds 100 m at the east wall and 150 m elsewhere and are in accordance with geotechnical recommendations.
The Santo Domingo pit will have two exits on the west side to provide access to the run-of-mine (ROM) pad area and the primary crusher. On the east side there will be another exit to access the main waste rock storage area. The final pit will be 2,200 m long in the north–south direction and 1,500 m wide in the east–west direction. The pit bottom will be at the 676 m elevation. The highest wall will be about 552 m and is situ ........
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Flow Sheet:
Summary:
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Pipelines and Water Supply
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Reserves at February 13, 2020:
Mineral Resources for the Santo Domingo Sur, Iris, Iris Norte and Estrellita deposits are reported using a cut-off grade of 0.125% copper equivalent (CuEq).
Mineral Resources are reported inclusive of Mineral Reserves.
Category | Tonnage | Commodity | Grade | Contained Metal |
Proven & Probable
|
392.3 Mt
|
Copper
|
0.3 %
|
1,167 kt
|
Proven & Probable
|
392.3 Mt
|
Gold
|
0.04 g/t
|
506.7 koz
|
Proven & Probable
|
392.3 Mt
|
Iron (magnetite)
|
28.2 %
|
|
Measured & Indicated
|
537 Mt
|
Copper
|
0.3 %
|
|
Measured & Indicated
|
537 Mt
|
Gold
|
0.039 g/t
|
|
Measured & Indicated
|
537 Mt
|
Iron (magnetite)
|
25.7 %
|
|
Measured & Indicated
|
537 Mt
|
Cobalt
|
229 ppm
|
|
Measured & Indicated
|
537 Mt
|
Copper Equivalent
|
0.52 %
|
|
Inferred
|
48 Mt
|
Copper
|
0.19 %
|
|
Inferred
|
48 Mt
|
Gold
|
0.025 g/t
|
|
Inferred
|
48 Mt
|
Iron (magnetite)
|
23.6 %
|
|
Inferred
|
48 Mt
|
Cobalt
|
197 ppm
|
|
Inferred
|
48 Mt
|
Copper Equivalent
|
0.41 %
|
|
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