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Canada
Hammerdown Project

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 Location:
13 km NW from Springdale, Newfoundland and Labrador, Canada

  Project Contacts:
2 Industrial Park
Springdale
Newfoundland and Labrador, Canada
A0J 1T0
Phone  ...  Subscription required
EmailEmail
WebsiteWeb
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life5 years (as of Jan 1, 2022)


Owners

Source: p. 25
CompanyInterestOwnership
Maritime Resources Corp. 100 % Direct
Maritime Resources Green Bay property encompasses 98 square kilometers (22,216 acres) held under 34 individual mineral licenses. The project area is bounded to the west by Maritime licenses and all of the Hammerdown Project mineral licenses are owned 100% by Maritime either by direct map staking or earned through option agreements.

Contractors

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Deposit Type

  • Vein / narrow vein
  • Volcanic hosted


Summary:

Gold-bearing quartz veins at the property are hosted by Ordovician metavolcanic and metasedimentary rocks of the Catchers Pond Group. The style of veining, mineralization, alteration, host rock, and tectonism most closely resemble other mesothermal volcanic-hosted (greenstone belt) gold deposits throughout the world.

The most important and well-defined gold deposits include the Hammerdown, Rumbullion, Muddy Shag and Orion deposits, which all occur within the Hammerdown Deformation Zone (HDZ). The HDZ is described has a 100 m to 250 m wide structural corridor of strong ductile to brittle shearing hosted in the uppermost units of the Catchers Pond Group. The historic Lochinvar VMS base metal deposit also occurs in the HDZ along with the Golden Anchor gold veins and Beetle Pond VMS alteration zone.

Hammerdown-Rumbullion-Muddy Shag Vein System
The Hammerdown-Rumbullion-Muddy Shag-Wisteria gold systems consist of both a series of stacked gold veins as well as a zone of broadly disseminated to veinlet hosted gold and pyrite mineralization. Both styles of mineralization are hosted within an 1,800 m long shear zone informally referred to as the HDZ. The vein system is now considered to be a single deposit however, historical definition drilling has identified internal faults that have served to segregate the veins into several mineralized domains.

Geologically, the Hammerdown deposit is situated close to the contact of a Lower Ordovician mafic ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Historically, the Hammerdown deposit has been mined with a small open pit and narrow vein underground mining (shrinkage and cut & fill mining methods). For this Feasibility study, the deposit has been developed purely as an open pit mine due to its relatively low cost and the near-surface nature of the deposit. The possibility of including underground mining was also evaluated but was ultimately excluded based on the overall expected economic outcome. Ore material will be drilled and blasted on 5 m benches and then excavated using a 2 m3 excavator, and 38 t trucks.

Ore will be delivered to a crusher/ore sorter located just South-East of the pit at a nominal rate of 1,200 t/d (426 kt/a) in order to provide 700 t/d (256 kt/a) to an offsite Mill. The average waste rejection rate of the ore sorter is expected to be approximately 40% for Vein material and 15% for the Wisteria zone. Waste materials will be drill and blasted on either 10m benches when in larger waste zones or on 5 m benches when near ore zones.

Waste will be mined using 8 m3 excavators and/or frontend loaders and 55 t trucks. This material will be contained within a Waste Storage Facility (WSF) located just South of the pit.

Mine Design
The ultimate pit design was split into three pushbacks to assist in smoothing production rates during operations. The approximate pushback shapes were selected from the generated pit shells as part of the pit optimization process which provide ........


Crushing and Grinding
Source: Subscription required

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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold koz 52247
All production numbers are expressed as payable metal.

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Daily mining rate  ......  Subscription required
Daily ore mining rate  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Daily processing rate  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
Annual processing rate  ......  Subscription required
Annual ore mining rate  ......  Subscription required
Mining scale, tpd  ......  Subscription required
Processing scale, tpd  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

Reserves at August 15, 2022:
Mineral Reserves are estimated at a cut-off of 0.73 g/t for Veins and 1.06 g/t for Wisteria Zone.

Open Pit Mineral Resources are estimated at a cut-off grade of 0.50 g/t Au.
Underground Mineral Resources are estimated at a cut-off grade of 2.00 g/t Au.

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (OP) 556 kt Gold 5.94 g/t 106 koz
Probable In-Situ (OP) 1,340 kt Gold 3.85 g/t 166 koz
Proven & Probable In-Situ (OP) 1,895 kt Gold 4.46 g/t 272 koz
Measured In-Situ (OP) 698 kt Gold 5.47 g/t 123 koz
Measured In-Situ (UG) 1 kt Gold 7.05 g/t
Indicated In-Situ (OP) 2,146 kt Gold 3 g/t 207 koz
Indicated In-Situ (UG) 54 kt Gold 5.1 g/t 9 koz
Measured & Indicated In-Situ (OP) 2,845 kt Gold 3.61 g/t 330 koz
Measured & Indicated In-Situ (UG) 55 kt Gold 5.1 g/t 9 koz
Inferred In-Situ (OP) 302 kt Gold 1.31 g/t 13 koz
Inferred In-Situ (UG) 66 kt Gold 4 g/t 9 koz

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Gold USD  ......  Subscription required&nbs
All-in sustaining costs (AISC) Gold USD  ......  Subscription required&nbs
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2022 study / presentation.
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Operating Costs:

Units2022
OP mining costs ($/t mined) CAD 4.49 *
Processing costs ($/t milled) CAD  ......  Subscription required
G&A ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2022 study.
Subscription required - Subscription is required.

2022 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
Working capital $M CAD  ......  Subscription required
Closure costs $M CAD  ......  Subscription required
Total CapEx $M CAD  ......  Subscription required
OP OpEx $M CAD  ......  Subscription required
Processing OpEx $M CAD 56.2
Transportation (haulage) costs $M CAD 30.3
G&A costs $M CAD 14.3
Total OpEx $M CAD  ......  Subscription required
Income Taxes $M CAD  ......  Subscription required
Gross revenue (LOM) $M CAD  ......  Subscription required
Net revenue (LOM) $M CAD  ......  Subscription required
Net Operating Income (LOM) $M CAD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M CAD  ......  Subscription required
After-tax Cash Flow (LOM) $M CAD  ......  Subscription required
Pre-tax NPV @ 5% $M CAD  ......  Subscription required
Pre-tax NPV @ 10% $M CAD  ......  Subscription required
Pre-tax NPV @ 8% $M CAD  ......  Subscription required
After-tax NPV @ 5% $M CAD  ......  Subscription required
After-tax NPV @ 10% $M CAD  ......  Subscription required
After-tax NPV @ 8% $M CAD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
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Proposed Heavy Mobile Equipment as of August 15, 2022:
HME TypeSizeQuantity
Dozer (crawler) 310 HP ....................... Subscription required
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 15, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 23, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 23, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2022

Corporate Filings & Presentations:

DocumentYear
Feasibility Study Report 2022
Quarterly Report 2022
Quarterly Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Pre-Feasibility Study Report 2017
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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