• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Canada
Douay Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
16 km NEW from Joutel, Quebec, Canada

  Project Contacts:
6th Floor
1111 W Hastings St
Vancouver
British Columbia, Canada
V6E 2J3
Phone  ...  Subscription required
EmailEmail
WebsiteWeb
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Canada
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StagePreliminary Economic Assessment
Mine TypeOpen Pit & Underground
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Longhole stoping
  • Transverse stoping
  • Longitudinal retreat
  • Cemented backfill
Processing
  • Cyanide (reagent)
Mine Life3.7 years (as of Jan 1, 2015)
Exploration programs underway to expand resources and updated resource estimate expected in H2/2021.
Latest NewsMaple Gold Files Technical Report and Mineral Resource Estimate for the Douay Gold Project     May 2, 2022


Owners

Source: p. 1
CompanyInterestOwnership
Agnico Eagle Mines Ltd. 50 % Indirect
Maple Gold Mines Ltd. 50 % Indirect
Maple Gold Mines Ltd. is pleased to announce the signing of a Binding Term Sheet with Agnico Eagle Mines Limited that contemplates a 50-50 joint venture, which will combine Maple Gold's Douay Project and Agnico's Joutel Project into a consolidated joint property package.

Deposit Type

  • Volcanic hosted
  • Intrusion related
  • Sedimentary
  • Breccia pipe / Stockwork


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 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°.

NORTHWEST 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 basaltsyenite 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.


Mining Methods

  • Truck & Shovel / Loader
  • Longhole stoping
  • Transverse stoping
  • Longitudinal retreat
  • Cemented backfill


Summary:

The PEA proposes a conventional truck and shovel open pit, followed by ramp access, long-hole open stoping in the underground mine.

Both the open-pit and underground operations will deliver material to a stockpile area near the crusher.

Since the LOM currently being contemplated is relatively short, the entire mining operation would be conducted on a contractor basis. The mining methods and production capacity have been chosen to match an ultimate milling throughput rate of 900 tonnes per day (“tpd”). This total will be composed entirely of feed from the open pit operation until the underground mine has been developed sufficiently to provide underground mill feed.

OPEN PIT
Hard rock pit slopes were assumed to be stable at a 45 degree inter-ramp slope. Reducing the cut-off lower than this grade effectively accelerated the incremental increase in the stripping ratio to undesirable levels.

The open pit mining dilution was estimated to be 16.3%, at a grade of 0.32 Au g/t. Mine extraction in the open pit mine is estimated to be 97%.

The ultimate pit would measure approximately 450 m long by less than 400 m wide and have an ultimate depth of approximately 80 m. Whereas there is mineralization below this elevation, the stripping ratio required to recover this material would be high. Also, it is expected that this material could be recovered at a later date using underground mining methods.

UNDERGROUND MINE
An underground mining operation would access and extract potential mill feed located at depth and below the open pit.

An initial pre-strip operation of approximately 3.5 million tonnes of overburden will be required. Preliminary estimates of stable slope angles in this material are on the order of 15–18 degrees. This has been used in the design of the pit and in the design of the footprints of the overburden storage area. The final overburden slopes will be conditioned with waste rock, as this material is accessed in the pit. The blasted rock would be excavated and hauled using the contractor's labour and equipment. The overburden and waste rock would be hauled to separate disposal areas and the potential mill feed would be hauled to the primary crusher. Waste rock would be used as backfill wherever possible.

Access to the underground mine will be through an underground decline ramp from the open pit wall. The underground ramp will be driven 5.0 m wide by 4.5 m high at a 15% gradient, complete with safety bays and re-muck bays, as required. The underground portal is scheduled to be started during the 9th month of Year 1 of the overall schedule. Mill feed production will commence at the beginning of Year 2.

The lowest elevation of the underground mine as designated as 0 elevation. All level designations are based on the vertical distances above this elevation. The remaining mineralized material at the bottom of the pit (between 175 level and 200 level) would be left as a crown pillar until later in the mine life.

Initial access to the underground deposit will be via a portal at about the 241 m elevation in the open pit and a decline with an inclination of about -15%. This decline will connect with the 200 m level in the vicinity of the mineralization. The decline will eventually be extended to connect all of the levels between the 200 and the 0 m levels, which would facilitate the use of mechanized mining procedures between those levels. Mining of potential mill feed will commence as soon as it is accessed by the decline and sublevels.

The mineralization will be mined in a top-down fashion, commencing below the 200 level.

The underground mining methods selected are longhole longitudinal retreat in the narrow zones and transverse stoping with a primary and secondary sequence in the wider zones. Initially, a 4.0 m wide by 4.0 m high pilot drift will be driven in mineralization at the base (bottom) and top of each stope. Undercuts and overcuts will be slashed to the width of mineralization in the longitudinal stopes. A 1.8 m by 1.8 m slot raise will be driven from the back of the undercut, up to the overcut, at the far-end of each stope. Longhole blastholes, approximately 3 inches in diameter, will then be drilled from the overcuts to breakthrough into the undercuts below. In some cases at the upper limits of a stope, longhole blastholes will be drilled from the backs of the undercuts, as uppers, to dead-end at the mineral/waste contact above. Longhole blastholes will be blasted starting at the slot raise, retreating back to the access point. Broken mill feed material will be mucked from the undercut locations using remotely operated load-haul-dump units. Once a stope has been completely mined out, it will be backfilled from the overcut elevation with cemented rockfill, or left open, depending on the mining sequence and prevailing geotechnical conditions.


Crushing and Grinding

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

  • Cyanide (reagent)

Source: Subscription required

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, which was placed on care and maintenance in late 2014. 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

Projected Production:

CommodityUnitsLOM
Gold oz 144,000
All production numbers are expressed as payable metal.

Operational Metrics:

Metrics
Daily milling rate 900 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 *
Annual ore mining rate 315 kt *
* According to 2015 study.

Reserves at October 23, 2019:
Cut-off grades are 0.45 g/t Au for a potential open pit scenario and 1.0 g/t Au for a potential underground scenario.

CategoryTonnage CommodityContained Metal
Indicated 8.6 Mt Gold 422 koz
Inferred 71.2 Mt Gold 2,352 koz

Commodity Production Costs:

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

Operating Costs:

Units2015
OP mining costs ($/t milled) CAD 4.25 *
UG mining costs ($/t milled) CAD  ......  Subscription required
Crushing costs ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2015 study.
Subscription required - Subscription is required.

2015 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
Closure costs $M CAD  ......  Subscription required
Total CapEx $M CAD  ......  Subscription required
OP OpEx $M CAD  ......  Subscription required
UG OpEx $M CAD  ......  Subscription required
G&A costs $M CAD 4.7
Total OpEx $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Gross revenue (LOM) $M CAD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M CAD  ......  Subscription required
After-tax Cash Flow (LOM) $M CAD  ......  Subscription required
After-tax NPV @ 0% $M CAD  ......  Subscription required
After-tax NPV @ 5% $M CAD  ......  Subscription required
After-tax NPV @ 10% $M CAD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 22, 2015
....................... Subscription required ....................... Subscription required Subscription required Sep 29, 2021
....................... Subscription required ....................... Subscription required Subscription required Dec 6, 2019
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Press Release 2017
Preliminary Economic Assessment 2015
Subscription required - Subscription is required.

News:

NewsDate
Maple Gold Files Technical Report and Mineral Resource Estimate for the Douay Gold Project May 2, 2022
Maple Gold Reports Updated Douay Mineral Resource Estimate; Indicated Resources Increase 21% to 511,000 Oz Au and Inferred Resources Increase 7% to 2,525,000 Oz Au on Limited Drilling March 17, 2022
Maple Gold Intersects Bonanza Grade Gold Including 334.0 g/t Gold over 1.0 Metre in the Porphyry Zone at Douay October 4, 2021
Maple Gold Drills 28.5 Metres of 8.8 g/t Gold in the 531 Zone at the Douay Gold Project September 9, 2021
Maple Gold Reports Multiple High-Grade, Visible-Gold-Bearing Intercepts from the 531 Zone at the Douay Gold Project June 21, 2021
Maple Gold Intersects 132 Metres of 1.58 g/t Gold in the Nika Zone at the Douay Gold Project May 26, 2021
Maple Gold Completes Winter Drill Campaign at Douay; First Hole at Douay West Zone Intersects 3.80 g/t Gold over 15 Metres and 2.98 g/t Gold over 5 Metres April 29, 2021
Maple Gold Intersects High-Grade Gold at 531 Zone and Provides Exploration Update for the Douay Project March 29, 2021
Maple Gold Reports Additional Intercepts from Winter Drilling Campaign, With 1.23 g/t Au over 75 metres, Including 1.61 g/t Au over 31m June 10, 2020
Maple Gold Summarizes Winter Drilling at the Nika Zone June 4, 2020
Maple Gold Intersects 1.91 g/t Au over 17m in Western Part of Porphyry Zone; Hole Ends in Mineralization, with 1.06 g/t Au over 7.0m May 27, 2020

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2022 MDO Data Online Inc.