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Canada
Beaver Dam Project (Atlantic Gold Operation)

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 Location:
NE 81 from Dartmouth, Nova Scotia, Canada

  Project Contacts:
409 Billybell Way
Mooseland
Nova Scotia, Canada
B0N 1X0
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WebsiteWeb
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  • Overview
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  • Mining
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Overview

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life6 years (as of Jan 1, 2019)
In August 2022, the application to the Impact Assessment Agency of Canada for Beaver Dam Project to remain under the Federal Canadian Environmental Assessment Act 2012 (CEAA 2012) process was approved.


Owners

Source: p. 101
CompanyInterestOwnership
St Barbara Ltd. 100 % Indirect
On 14 September 2020, the Group, through its subsidiary Atlantic Mining Nova Scotia, acquired the remaining 93% of the issued shares of Moose River Resources Incorporated (“MRRI”) resulting in 100% St Barbara ownership.

Contractors

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Deposit Type

  • Vein / narrow vein


Summary:

Historic gold mining in Nova Scotia, including mining in the Moose River Gold District, has focussed on quartz-vein hosted gold deposits within the Goldenville Formation, typically associated with the limbs and hinges of anticlines. This setting is often referred to as ‘Meguma style’ gold mineralization.

In recent years the existence of disseminated gold mineralization and potential to develop large tonnage, open-pitable resources in Nova Scotia has been recognised, particularly since 1986-87 when drilling around old workings at Moose River Gold Mines intersected wide intervals of relatively low grade gold mineralization in what is now known as the Touquoy gold deposit. Since then, disseminated gold mineralization has been identified at a number of locations, spatially associated with anticlinal fold hinges. Most of that mineralization is associated with argillites or mixed greywacke-argillite units within the Goldenville Formation, including Touquoy, Beaver Dam and Fifteen Mile Stream; however, disseminated gold has also been recognised in greywacke host rocks within the Goldenville Group at North Brookfield and several other sites.

At Beaver Dam the highest gold grades are typically associated with bedding-parallel tabular quartz veins localised on the southern limb near the hinge zone of the Moose River Fifteen Mile Stream Anticline. However, the host rock material between quartz veins also carries significant gold grades. It is the quartz vein hosted ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining is based on conventional open pit methods suited for the project location and local site requirements.

Mine operations are anticipated to begin at Touquoy, and move to Beaver Dam once the Touquoy pit reserves are exhausted in year 5.

B621 targets the south portion of the deposit, which contains a higher grade gold and lower strip ratio than the north portion. This phase contains about 1.5 years’ worth of mill feed and mines from the pit exit at the 130 m elevation, down to the pit bottom at the 45 m elevation. The ramp runs counter-clockwise down from the 130 m pit exit in the east of the pit and switchbacks at the 85 m bench elevation.

B622 pushes the north and east wall to the ultimate limits and extends the bottom of the pit below the first pit phase. This phase contains about 1.5 years’ worth of mill feed and mines from the pit exit at the 130 m elevation, down to the pit bottom at the -45 m elevation. The ramp runs counter-clockwise down from the 130 m pit exit in the east of the pit.

The Beaver Dam operations require an additional two excavators and one wheel loader.

The hydraulic excavators are specified to handle the bulk of excavation from the pits, including all identified mineralized zones and the waste rock in those mineralized zones. The wheel loader is specified for mining waste only areas of the pit, re-handling stockpiled material, pit clean up, road construction and snow removal. Blasted patter ........


Crushing and Grinding
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Processing

Flow Sheet: Subscription required

Summary:

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Combined production numbers are reported under Atlantic Gold Operation

Operational Metrics:

Metrics
Stripping / waste ratio 5.9 *
Waste tonnes, LOM 40,384 kt *
Ore tonnes mined, LOM 6,897 kt *
Tonnes milled, LOM 6,897 kt *
* According to 2019 study.

Reserves at February 15, 2019:
Mineral Reserves are reported at a cut-off grade of 0.50 g/t Au.

Mineral Resources are reported at a base case cut-off grade of 0.3 g/t Au

CategoryTonnage CommodityGradeContained Metal
Proven 3.81 Mt Gold 1.54 g/t
Probable 3.09 Mt Gold 1.43 g/t
Measured 5.1 Mt Gold 1.28 g/t 209.4 koz
Indicated 4.59 Mt Gold 1.23 g/t 182.1 koz
Measured & Indicated 9.69 Mt Gold 1.26 g/t 391.5 koz
Inferred 1.03 Mt Gold 1.41 g/t 46.7 koz

Commodity Production Costs:

CommodityUnitsAverage
Assumed price Gold USD  ......  Subscription required&nbs
* According to 2019 study / presentation.

Operating Costs:

Units2019
OP mining costs ($/t milled) CAD 18 *
Processing costs ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2019 study.
Subscription required - Subscription is required.

2019 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Pre-Production capital costs $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
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Proposed Heavy Mobile Equipment as of May 19, 2019:
HME TypeSizeQuantityLeased or
Contractor
Bulldozer 233 kW ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
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Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 14, 2022
....................... Subscription required ....................... Subscription required Subscription required Nov 14, 2022
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Annual Report 2022
Corporate Presentation 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2019
Corporate Presentation 2018
Press Release 2017
Technical Report 2017
Feasibility Study Report 2015
Preliminary Economic Assessment 2014
Subscription required - Subscription is required.

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