Overview
Stage | Permitting |
Mine Type | Underground |
Commodities |
- Copper
- Nickel
- Gold
- Silver
- Cobalt
- Platinum
- Palladium
|
Mining Method |
- Mechanized Cut & Fill
- Paste backfill
|
Processing |
- Acid plant
- Crush & Screen plant
- Dewatering
- Smelting
- Desliming
- Flotation
- Leaching plant / circuit
- Magnetic separation
- Solvent Extraction & Electrowinning
- Rotary kiln & Electric furnace
- Roasting
|
Mine Life | 14 years (as of Jan 1, 2020) |
Exploratory work continued, aimed at increasing knowledge of a part of the project’s mineral resources and actions aimed at maintaining good relations with key stakeholders in the project. |
Source:
p. 2
Summary:
The Victoria property is situated at the junction of the SIC and the Worthington quartz diorite Offset Dyke, approximately 6.5 km northeast of Totten property. Other mineralized locations are known along the Worthington Offset between the Victoria property and the Totten Deposit. Two of these, the adjacent McIntyre deposit and the AER/Kidd Copper property, located 3 km further southwest from the Victoria property, were the objects of small mining operations.
Within the property, both the footwall contact of the SIC and the Worthington Offset Dyke dip steeply. Both intrude sheared and metamorphosed mafic volcanic and sedimentary rocks of the Stobie Formation. Zones of Sudbury Breccia occur throughout the property as discontinuous lenses. Late quartz diabase and olivine diabase dykes cross-cut all lithologies. Two dominant structural shear directions, one set trending northwest-southeast and the other trending northeast- southwest, have been defined and these control the distribution of mineralization on the property.
The Cu-Ni-PGM sulphide mineralization at the Victoria property is characterized by a complex assemblage of irregular lenses of chalcopyrite, pentlandite and pyrrhotite. The lenses dip and plunge steeply and are typically pipe-like.. The complex structural features of the property have caused remobilization of the sulphides and control the lateral extent and dimensions of the mineralization.
Targets.
Numerous zones of Cu-Ni-PGM mineralization are present on the Victoria property and four of these, the No. 4 Zone; West Zone; No. 1 West and No. 2 West Zones, have been mined. In addition to the above, there are several other known mineralized zones on the property which have not been the focus of historical production. These include the Far West Zone, the East Zone, the Dyke Zone, and the newly discovered Powerline Zone.
Mining Methods
- Mechanized Cut & Fill
- Paste backfill
Summary:
The underground mine will consist of a main shaft, a ventilation shaft and an adit, and underground supporting infrastructure including, but not limited to, maintenance facilities, refuge stations, ballast and shotcrete delivery systems, and explosive and detonator magazines.
The proposed maximum mine production rate is 3,500 t/d with an estimated maximum overall production capability of 5,500 t/d of ore and waste rock. Mine Product (ore) and waste rock will be hoisted to surface where it will be moved from the shaft to the loadout building via crushing and sampling processes, and eventually to the loadout building for transport. Ore will be loaded into trucks for shipment to Vale’s Clarabelle Mill. Waste rock will be transferred from the loadout building to trucks for transport to the PAG 2 waste rock storage pad.
Crusher / Mill Type | Model | Size | Power | Quantity |
Jaw crusher
|
|
|
|
1
|
Cone crusher
|
|
|
|
2
|
Summary:
The crushing system will be located in an enclosed area east of PAG 1 and immediately northwest of the backfill plant. It will include three portable crushers (one jaw crusher and two cone crushers) working in series to reduce the mine waste rock from PAG 1 and PAG 2 to 6-millimetre aggregate to feed the grinding circuit located inside the backfill plant. The 6-millimetre product will be transferred into a storage bunker having a total storage capacity of 13,000 tonnes. The crushers will be enclosed in an unheated, sound insulated building. Dust containment enclosures along with a 64,000- cubic metre per hour (m3/h) bag house dust collector will help to minimize the dust effects. On average, 1,800 tonnes of material will be processed by this system on a daily basi
Processing
- Acid plant
- Crush & Screen plant
- Dewatering
- Smelting
- Desliming
- Flotation
- Leaching plant / circuit
- Magnetic separation
- Solvent Extraction & Electrowinning
- Rotary kiln & Electric furnace
- Roasting
Source:
Summary:
Mine product (ore) will be transported to Clarabelle Mill in Copper Cliff (also in the City of Greater Sudbury) for processing. Third party owned and operated trucks will deliver the mine product via truck to the Clarabelle Mill. No material modifications are required to existing off-site facilities (including tailing storage facilities) for the purpose of receiving and processing ore (mine product) or waste rock from the proposed Victoria Mine.
Projected Production:
Commodity | Units | Avg. Annual |
Copper
|
kt
| 18 |
Nickel
|
kt
| ......  |
All production numbers are expressed as metal in concentrate.
Operational Metrics:
Metrics | 2019 |
Daily mining capacity
| 5,500 t |
Daily ore mining rate
| 3,500 t |
Reserves at December 31, 2014:
Category | Tonnage | Commodity | Grade | Contained Metal |
Indicated
|
482 kt
|
Copper
|
1.41 %
|
6,798 t
|
Indicated
|
482 kt
|
Nickel
|
1.23 %
|
5,915 t
|
Indicated
|
482 kt
|
Gold
|
0.22 g/t
|
105 kg
|
Indicated
|
482 kt
|
Cobalt
|
0.03 %
|
147 t
|
Indicated
|
482 kt
|
Platinum
|
0.47 g/t
|
228 kg
|
Indicated
|
482 kt
|
Palladium
|
1.35 g/t
|
652 kg
|
Inferred
|
13,081 kt
|
Copper
|
2.64 %
|
345,839 t
|
Inferred
|
13,081 kt
|
Nickel
|
2.76 %
|
360,508 t
|
Inferred
|
13,081 kt
|
Gold
|
0.97 g/t
|
12,677 kg
|
Inferred
|
13,081 kt
|
Silver
|
14.4 g/t
|
188,376 kg
|
Inferred
|
13,081 kt
|
Cobalt
|
0.06 %
|
7,243 t
|
Inferred
|
13,081 kt
|
Platinum
|
3.08 g/t
|
40,262 kg
|
Inferred
|
13,081 kt
|
Palladium
|
4.45 g/t
|
58,153 kg
|
Financials:
| Units | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
Capital expenditures
|
M USD
| ......  | ......  | 5 |
5
|
21
|
62
|
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