Dubuisson
- Description and location
- Accessibility, Local Resources and Infrastructure
- Geological setting
- Exploration
- Calculation of mineral resources
- Technical & geological report
- Photography
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Description and location
The Dubuisson Property consists of 14 contiguous unpatented mining claims covering 432.11 hectares within the city limits of Val-d’Or, Québec. The property is located within Dubuisson township near the geological limits of the Superior Province and is defined by a stacking of mafic volcanic rocks in contact with the southwestern edge of the Bourlamaque Batholith.
Accessibility, Local Resources and Infrastructure
Situated within the city limits of Val-d’Or, Québec, the property can be reached via Highway 117 and then proceeding south for approximately 0.5 km by a newly built gravel road that leads directly to the property. Furthermore, a railroad line crosses the entire length of the property. The property is situated at the North-West limit of the City of Val-d’Or in a scarcely populated area classified as commercial and industrial pursuant to the by-laws of the City of Val-d’Or, which classification comprises among others, extraction industries activities. Since the City of Val-d’Or and the Val-d’Or region are one of the major mining centre in the Province of Québec, the Corporation do not anticipate constraints in regard to the conduct of its mining activities on the Dubuisson Property.
The city of Val-d’Or is a comprehensive mining centre capable of providing personnel, contractors, equipment and supplies to a number of operations in the area. Power is available from a provincial power line which crosses the entire length of the Dubuisson Property.
The Dubuisson Property is located in the Val-d’Or mining camp, which has seen a number of gold producers. Among those producing assets are the Sigma Mine and Lamaque Mine, that, each has produced 4.3 M oz Au thus far.
Geological setting
The Dubuisson Property is located within the Val-d’Or mining district, in the Abitibi greenstone belt of the Superior province of the Canadian Shield. The area consists mostly of NW-SE to E-W striking volcanic and sedimentary rocks of Archean age. Plutonic bodies in the region are diverse in size and composition, and include granitic to granodioritic plutons, and granitic to gabbroic sills and dykes. Valconic and intrusive rocks have generally been metamorphosed to greenschist facies. The Abitibi Subprovince is the largest greenstone belt of the Superior Province and is well known for it’s important volcanogenic massive sulphide and lode gold deposits.
Within the Eastern Abitibi Subprovince, two main types of gold deposits are found; the common quartz-vein type and the rare pyritic type. Both occur in areas spatially associated with major fault zones. The Dubuisson Property gold mineralization observed to date belongs to the quartz-vein type. This type of gold deposit commonly consists of simple to complex networks of quartz-carbonate-pyrite veins in reverse shear zones and extensional fractures. They occur in areas dominated by mafic volcanic rocks and are commonly associated with small syn-to late-tectonic porphyritic felsic intrusions. Associated alteration, which postdates peak metamorphism, is dominated by carbonatization, sericitization and pyritization of the wallrocks. These deposits formed late in the geological evolution of the Abitibi.
The Cadillac Tectonic Fault is located some 3 kilometers south of the Property Dubuisson.
Exploration
The Dubuisson Property has been the object of extensive past exploration work. Previous owners limited their exploration efforts, however, on the Stabell vein which has been the object of underground development and subsequent small scale commercial production. Official production figures, from 1933-1937, stand at 64,850 metric tons at an average recovered grade 7.2 g/t Au for a total of 15,000 Oz. Au.
The rejuvenated interest in the property stems from the encouraging results obtained from the summer 2001 and 2002 programs. The exploration work carried out by Metanor consisted in surface stripping work which successfully excaved the N°5 vein structure which has now been exposed, mapped and channel sampled for a strike length of approximately 250 meters.
Between June 2001 and June 2003, Metanor has spent over $767,642 on the property in exploration expenditures. A total of 5,838 meters of surface diamond drilling in 43 holes has been completed along with surface stripping. All of the work was focused on the N°5 zone, which has demonstrated excellent geological continuity to date in both surface stripping work and subsequent diamond drilling work.
Calculation of mineral resources
In order to come up with the resources estimates for zone 5 of the Dubuisson Property, all past and current diamond drilling results were entered into a database. In September 2003, Resources were calculated and classified in accordance with National Instrument 43-101. The current mineral resources estimates for Dubuisson are as follows:
Resources Estimates - Dubuisson Property (September 2003)
| Zone |
Cut Off (g/t Au) |
Category | Metric Tons | Au (g/t) | Ounces Au |
|---|---|---|---|---|---|
| Veine Stabell | Measured | 31,130 | 3,74 | 4,140 | |
| Indicated | 19,250 | 10,60 | 6,580 | ||
| Sub-total | 50,380 | 6,36 | 10,720 | ||
| Inferred | Nil | ||||
| Zone no. 5 | 1,5 | Measured | 59,338 | 4,07 | 7,765 |
| 1,5 | Indicated | 56,358 | 4,23 | 7,665 | |
| Sub-total | 115,696 | 4,15 | 15,430 | ||
| 0,0 | Inferred | 3,245,222 | 4,15 | 432,995 | |
| Total | Measured | 90,468 | 3,96 | 11,905 | |
| Indicated | 75,608 | 5,85 | 14,245 | ||
| Total | 166,076 | 4,82 | 26,150 |
Zone 5 - Status as at September 2003
As of September 2003, the defined mineralized envelope is 550 m wide and 600 m deep.
This mineralized envelope was followed on surface over a 550 meter distance (Sections 289975 E to 289525 E). It is open towards the West and is intersected on the East by a N70E oriented fault zone.
In the Western (Section 289050 E) and Central (289200 E) sectors, four (4) drill holes tested the extensions of the mineralized zone to a 200 meter depth. These drill holes demonstrated the continuity of the mineralized zone. They all intersected the mineralized shear zones that yielded values ranging from 1 to 3 g/t Au over a thickness reaching 3.5 meters.
In the Eastern sector, a series of close drill holes allowed the delimitation of a richer zone located between Sections 289250 E and 289500 E from the surface to an approximate 200 meter depth. Amongst the previous drill holes carried out (which results were used to calculate the mineral resources hereinabove) the best intersections yielded the following results:
| Drill hole | From | To | Thickness (m) | Grade Au (g/t) |
|---|---|---|---|---|
| PY-02-05 | 68,8 | 73,30 | 4,5 | 5,96 |
| ME-03-08 | 57,10 | 59,15 | 2,05 | 3,45 |
| ME-03-29 | 31,10 | 34,40 | 3,3 | 4,30 |
| ME-03-26 | 31,0 | 33,15 | 2,15 | 4,32 |
| ME-03-18 | 120,2 | 123,1 | 2,9 | 6,65 |
| ME-03-20 | 42,40 | 45,90 | 3,5 | 3,2 |
| ME-03-19 | 31,65 | 33,25 | 1,6 | 3,43 |
| RS-227 | 133,53 | 139,63 | 6,1 | 8,53 |
| RS-224 | 134,75 | 141,15 | 6,4 | 3,50 |
| RS-202 | 133,2 | 137,1 | 3,9 | 3,26 |
| RS-220 | 133,84 | 135,67 | 1,85 | 7,97 |
Two (2) previous drill holes intersected the main zone at a greater depth and on 50-meter interval sections. Drill hole RS-203 yielded an intersection of 6.42 g/t Au over 2.13 m at a depth of -270 m and RS-208 yielded an intersection of 2.75 g/t Au over 3.65 m at a depth of -330 m.
The deepening of these drill holes allowed the intersection of a sub parallel zone located about 70 m further south. The following results were obtained: drill hole RS-203 yielded a 2.70 g/t Au intersection over 3.6 m at -445 m and drill hole RS-208 yielded a 3.61 g/t Au intersection over 4.20 m at -535 m. Drill hole ME-04-49 aimed at investigating the extension at depth of those two (2) mineralized zones. It deviated towards the east and intersected on the east boundary of the enriched zone, six (6) sub parallel auriferous zones over an approximate 165 m total width between 400 m and 680 m in depth and which yielded values ranging from 1 to 4 g/t Au over widths reaching 3.20 m.
Therefore, this long drill hole revealed the presence of six (6) mineralized auriferous zones and the widening, at depth, of the mineralized envelope. At this time, a controlled drilling is underway directly under the mineralized envelope. It will reach approximately 800 meters in vertical depth (900 meters of total length).
The second phase of the drilling campaign will comprise additional drill holes designed to delimit the extensions of Zone #5 which should allow for a new calculation of mineral resources for this zone.
Stabell Vein:
A few drill holes intersected the Stabell vein along its westernly extension from the old mine (where a shaft and several kilometres of tunnels were completed and which are still usable for future work), to an approximate 180 meter depth. The best auriferous intersections were obtained in drill hole ME-04-53 which yielded 3.05 g/t Au over 5.55 m (including 6.53 g/t Au over 2.25 m) and drill hole ME-04-58 which yielded 14.60 g/t Au over 2.1 m.
Technical & geological report
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