Canada

Douay Project

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Overview

Mine TypeOpen Pit & Underground
StagePreliminary Economic Assessment
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Longhole stoping
  • Longitudinal retreat
  • Transverse stoping
Backfill type ... Lock
Mine Life... Lock
SnapshotDouay Project is one of Quebec’s Largest Undeveloped Gold Resources.

The Douay Project resource remains open in multiple directions laterally with significant resource expansion potential.

Maple Gold and Agnico (50/50 JV between Maple Gold and Agnico) share a common vision for realizing the exploration potential at the Douay God Project.

JV targeting major discoveries with aggressive step-out and deep drilling. 3D model updates and target prioritization underway with next phase of drilling expected in 2024.

Owners

SourceSource
CompanyInterestOwnership
Agnico Eagle Mines Ltd. 50 % Indirect
Maple Gold Mines Ltd. 50 % Indirect
Douay is held by a 50/50 JV between Maple Gold and Agnico as per a JV Agreement (February 3, 2021) pursuant to which the parties formed a JV that incorporates Maple Gold’s Douay and Agnico’s Joutel projects into a consolidated JV property package.

Contractors

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Deposit type

  • Intrusion related

Summary:

Gold mineralization on the Property includes a large, disseminated, pyritic, quartz-poor, structurally controlled style of mineralization. Collectively, this style of mineralization is best described as forming part of the Intrusive-Related Gold System (IRGS). The mineralized zones within and surrounding the locally porphyritic syenitic intrusive complex are likely related to the corresponding intrusive-hydrothermal system, and are predominantly controlled by rock permeability, created either by rheological contrasts between the different lithologies and their associated alteration and/or by deformation zones, particularly along lithological contacts.

Douay West Zone
The Douay West (DW) Zone is located five to thirty metres north of a graphitic fault zone. The mineralized zone extends over a strike distance of approximately one kilometre and trends 100°. The zone is composed of several sub-parallel bodies that trend from 90° to 100°, and dip from -55° to -65° to the south. The drilled thickness of each of the individual bodies ranges from less than one metre up to 65 m.

Gold bearing mineralization is associated with pyritized and altered zones (albitized, silicified, carbonatized, hematized) within mafic volcanic rocks and at the contact of a gabbroic intrusive. Leaching, albitization, carbonatization, and pyritization are the dominant alteration and mineralization patterns. Sericitization and/or ankeritization and weak hematization are present. Visual estimates of 1% to 30% pyrite of various types do not provide a direct estimate of expected gold grade.

Porphyry Zone
The Porphyry Zone hosts high tonnage, lower grade, structurally controlled gold mineralization. It is not a porphyry-style deposit type but may instead be an Intrusive-Related Gold System (IRGS). The Porphyry Zone has an overall trend of 100° to 110° over a strike distance of 3.5 km. The overall width is approximately 500 m. It is composed of east-west to east-southeast oriented, subparallel mineralized lenses, with each lens typically tens of metres with some over 100 m thick. The lenses dip to the south at -60° to -65°.

North West Zone
The Northwest (NW) Zone has an overall east-southeast trend over a strike distance of approximately 900 m. The overall width is approximately 400 m not including what is now called the Nika Zone. It is composed of sub-parallel mineralized lenses trending 95° to 100°, with each lens typically approximately 100 m to less than 900 m long.

The mineralized bodies dip to the south at -50° to -65°, separated by less than one metre to 100 m intervals of barren rock. The lenses ranged from a drilled width of less than one metre to 40 m, with an average drilled width of 11 m. The NW Zone is underlain by a mixed basalt-syenite sequence. Carbonatization and epidote are the main alteration types seen in this area. Secondary silicification and chloritization occur.

Nika Zone
The Nika Zone has an overall east-southeast trend over a strike distance of 840 m. The overall width is 350 m. It is composed of several individual sub-parallel to joined, or multi-limbed, lenses trending 100°, with each lens typically 100 m to 1,900 m long. The mineralized bodies dip to the south at -70° to -85°, separated by less than one metre to 70 m intervals of barren rock. The lenses ranged from a drilled width of less than one metre to 60 m, with an average drilled width of 8.5 m. The Nika Zone is underlain by a mixed basalt-syenite sequence, including some thick syenitic dykes that are well mineralized.

Zone 20
Zone 20 occurs south of the central part of the Porphyry Zone, has an overall trend of 125° over a strike distance of 600 m and a width of 300 m. Significant volumes of syenitic rocks mixed with somewhat less basalts. Zone 20 is composed of sub-parallel sub-continuous lenses trending 125°, with each lens typically 100 m to 500 m long. The mineralized bodies dip to the south at -45° to -50°, separated by less than one metre to 60 m intervals of barren rock. The lenses range from one metre to 40 m wide, however are usually less than 10 m to 20 m wide.

Zone 10
Zone 10 has a trend of 90° to 115° over a strike distance of 600 km. The overall width is 200 120 m. It is composed of several sub-parallel mineralized, sub-continuous lenses trending 90° to 110°, with each lens typically 100 m to 500 m long. The mineralized bodies dip to the south at -65° to -85°, separated by one metre to 70 m intervals of barren rock. The lenses range from a drilled width of one metre to 60 m, with an average drilled width of 10 m. Zone 10 is underlain by mixed basalt with multiple interflow sedimentary horizons and only minor syenite, mainly present in the western portion.

Higher grade mineralization within Zone 10 is characterized by:
1. Intense brecciation: intense fracturing, brecciation, shearing, and fault gouge are all present, and are interpreted to mostly reflect formation of a fault breccia.
2. Pyritization: The high grade gold zone contains up to 15% pyrite, compared to 1% to 3% in the surrounding rock.
3. Silicification/sericitization: The rock is pervasively silicified and sericitized overprinting the composition and textures of the protolith.
4. Felsic unit: fingers of what appear to be syenitic injections or feldspathic alteration are noted immediately below the high grade zone. Pyroclastic fragments are also present, which are indicative of felsic volcanism.

531 Zone
The 531 Zone has a trend of 90° to 105° over a strike distance of approximately 500 m. The overall width is 300 m. It is composed of several sub-parallel mineralized, sub-continuous lenses trending 90° to 105°, with each lens typically 100 m to 500 m long. The mineralized bodies dip to the south at -60° to -75°, separated by one metre to 70 m intervals of barren rock. The lenses ranged from a drilled width of one metre to 60 m, with an average drilled width of 11 m.

The area is underlain by a mafic to ultramafic sequence with multiple interflow sedimentary (argillite and chert) horizons. Two styles of gold mineralization can be distinguished:
1. Anomalous to low gold grades (100 ppb Au to 700 ppb Au) are associated with abundant (5% to 15%) pyrite as disseminations or aggregates.
2. Gold grades dicrease from 1.5 g/t Au to over 10 g/t Au, when discrete (one to five metre thick) structural features such as brecciation, strong fracturing, and/or shearing intersect syenite-contaminated.

Main Zone
Several of the highest gold drill intercepts at Douay were obtained here. The Main Zone has an overall trend of 105° over a strike distance of 850 m. The overall width is 350 m. It is composed of several sub-parallel mineralized, sub-continuous lenses trending 90° to 100°, with each lens typically 100 m to 500 m long. The mineralized bodies dip to the south at -75° to -80°, separated by five metre to 200 m intervals of barren rock. The lenses ranged from a drilled width of less than one metre to 49 m, with an average drilled width of 7.5 m. The grade shells were modelled considering composites of =0.1 ppm Au.

Central Zone
The sparsely drilled Central Zone (CZ) is located north of the Porphyry Zone and east of the NW and Nika zones. It extends over a strike distance of at least 1.4 km, with an overall trend of 100°.

Continuous mineralization consists of narrow, sub-parallel, and stepped bodies over a strike distance of approximately 1,000 m and a width of 80 m to 330 m. The mineralized bodies dip to the south at -60° to -80°, separated by less than one metre to 100 m intervals of low grade to barren rock. Mineralization consists of 1% to 5% disseminated, patchy and fracture-controlled pyrite, in intervals up to 20 m wide, mostly in silica-sericite-Fe-carbonate-pyrite altered pyroclastic rocks, but also associated with quartz-feldspar stockwork veinlets in felsic feldspar porphyry dykes.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Summary:

A crusher/sizer facility will be installed near the rim of the pit to prepare the run-ofmine material for transport by highway trucks.

Processing

Summary:

The construction of an on-site processing facility would not be justified given the current estimates of the quantity of potential mill feed.

However, P&E is aware of several potential processing facilities within a moderate trucking distance, which may be amenable to accepting potential mill feed from the Douay West property. The closest facility is the Sleeping Giant mill. It is approximately 50 kilometres south of the Douay West project.

Initial tests indicate that gravity and flotation processes would not provide acceptable results. However, these tests did suggest that Douay West mill feed would react well to cyanidation and that it would be reasonable to expect a recovery of between 92% and 94%.

The lower value of 92% has been adopted for this study.

Recoveries & Grades:

CommodityParameterAvg. LOM
Gold Recovery Rate, % 92
Gold Head Grade, g/t 4.2

Production

CommodityUnitsLOM
All production numbers are expressed as payable metal.

Operational metrics

Metrics
Daily milling rate 900 t *
Annual ore mining rate 315,000 t *
Stripping / waste ratio 12.1 *
Waste tonnes, LOM 5.06 Mt *
Ore tonnes mined, LOM 1.16 Mt *
Total tonnes mined, LOM 6,220 kt *
Tonnes milled, LOM 1.16 Mt *
* According to 2015 study.

Production Costs

CommodityEstimated
Cash costs Gold 800 / oz *  CAD
All-in costs Gold 1,195 / oz *  CAD
Assumed price Gold 1,350 / oz *  USD
* According to 2015 study / presentation.

Operating Costs

Currency2024
OP mining costs ($/t milled) CAD 4.25 *  CAD
UG mining costs ($/t milled) CAD  ....  Subscribe
Crushing costs ($/t milled) CAD  ....  Subscribe
Total operating costs ($/t milled) CAD  ....  Subscribe
* According to 2015 study.

Project Costs

MetricsUnitsLOM Total
Sustaining CapEx $M CAD  ......  Subscribe
Closure costs $M CAD  ......  Subscribe
Total CapEx $M CAD  ......  Subscribe
OP OpEx $M CAD  ......  Subscribe
UG OpEx $M CAD  ......  Subscribe
Processing OpEx $M CAD 34.8
G&A costs $M CAD 4.7
Total OpEx $M CAD  ......  Subscribe
Mining Taxes $M CAD  ......  Subscribe
Total Taxes $M CAD  ......  Subscribe
Net revenue (LOM) $M CAD  ......  Subscribe
Pre-tax Cash Flow (LOM) $M CAD  ......  Subscribe
After-tax Cash Flow (LOM) $M CAD  ......  Subscribe
After-tax NPV @ 5% $M CAD  ......  Subscribe
After-tax NPV @ 10% $M CAD  ......  Subscribe
After-tax IRR, %  ......  Subscribe
After-tax payback period, years  ......  Subscribe

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 1, 2024
....................... Subscription required ....................... Subscription required Subscription required Apr 1, 2024
....................... Subscription required ....................... Subscription required Subscription required Mar 17, 2022

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