Source:
p. 24
The Marban property contains six past-producing mines (Marban, Norlartic, Kierens, Malartic Hygrade, Orion No.8 and Camflo (below 800 metres (m) from the surface)), which collectively produced 879,000 ounces of gold between 1959 and 1992. O3 Mining owns 100% of the Marban property.
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Deposit Type
- Vein / narrow vein
- Mesothermal
- Orogenic
Summary:
The various mineralization styles present on the Marban property can be characterized as sub-types of the orogenic class of gold deposits, most commonly shear-zone hosted gold mineralization within greenstone terrains.
Greenstone-hosted quartz-carbonate vein deposits occur as quartz and quartz-carbonate veins, with valuable amounts of gold and silver in faults and shear zones located within deformed terrains of ancient to recent greenstone belts commonly metamorphosed at greenschist facies (Dubé and Gosselin, 2007). Greenstone-hosted quartz-carbonate vein deposits are a subtype of lode gold deposits (Poulsen et al., 2000). They are also known as mesothermal, orogenic. They consist of simple to complex networks of gold-bearing, laminated quartz-carbonate fault-fill veins in moderately to steeply dipping, compressional brittle-ductile shear zones and faults, with locally associated extensional veins and hydrothermal breccias.
The Marban property lies within the Archean Abitibi greenstone belt of the Superior Province, Quebec, which consists of alternating east-trending metavolcanic-plutonic and sedimentary belts that are bounded by crustal-scale faults. The Abitibi belt has been divided into a Northern Volcanic Zone (NVZ) and a Southern Volcanic Zone (SVZ) (Chown et al., 1992). The Marban property is located in the southern portion of the SVZ, where the Parfouru fault separate the Blake River segment to the west from Malartic segment to the east (Daigne ........
Summary:
Mining of the Marban project will be carried out using conventional open pit techniques using 10 m benches. An owner mined open pit operation is planned with hydraulic shovels and mining trucks, including the outsourcing of certain support activities such as blasting.
Production drilling of the 10 m benches will be carried out by 6.5-inch (165.1 mm) production drills with the capabilities of rotary drilling and down the hole (DTH) drilling. Blast holes are loaded with high energy bulk emulsion. The majority of the loading of the pit will be carried out by three 16 m3 electric hydraulic shovels, one 12 m3 diesel electric shovel, and a 10.7 m3 diesel front end loader. The loading fleet with be augmented with 60 t shovels that will handle overburden material and scaling. The primary loading fleet with service a fleet of 150 t trucks and the secondary overburden loading units wills service a fleet of 100 t trucks.
The mining of the Marban project will occur in five separate pits. The Marban pit is the largest and contains three nested phases. The Norlartic pit is the second largest and is composed of two nested pits. The four remaining pits are small, singlephased pits. Waste rock will be sent to the primary waste dump which is phased into two sections to reduce initial footprint and hauling from pits. Overburden material will go to one of two overburden stockpiles located adjacent to each of the pit groups. The pits generate 237.3 Mt of waste rock and 48.9 ........
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Flow Sheet:
Summary:
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Reserves at August 17, 2022:
Mineral reserve cut-off grade is 0.3 g/t Au for all materials.
The lower cut-off used to report open-pit mineral resources is 0.30 g/t Au. Underground mineral resources have been reported using a 3.0 g/t lower cut-off at Marban, and a 2.5 g/t lower cut-off at Kierens-Norlartic.
| Category | OreType | Tonnage | Commodity | Grade | Contained Metal |
|
Probable
|
In-Situ (OP)
|
56,437 kt
|
Gold
|
0.91 g/t
|
1,647 koz
|
|
Indicated
|
In-Situ (OP)
|
67,232 kt
|
Gold
|
1.07 g/t
|
2,318 koz
|
|
Indicated
|
In-Situ (UG)
|
460 kt
|
Gold
|
3.75 g/t
|
55 koz
|
|
Indicated
|
Total
|
67,692 kt
|
Gold
|
1.09 g/t
|
2,374 koz
|
|
Inferred
|
In-Situ (OP)
|
2,106 kt
|
Gold
|
1.2 g/t
|
81 koz
|
|
Inferred
|
In-Situ (UG)
|
1,043 kt
|
Gold
|
4.25 g/t
|
142 koz
|
|
Inferred
|
Total
|
3,149 kt
|
Gold
|
2.21 g/t
|
223 koz
|
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