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Canada
Atlantic Gold Operation (15 Mile Project, Beaver Dam Project, Cochrane Hill Project, Touquoy Mine)

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 Location:
62 km NE from Dartmouth, Nova Scotia, Canada
  Address:
409 Billybell Way, Mooseland
Middle Musquodoboit
Nova Scotia, Canada
B0N 1X0
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Personnel
  • Filings & News
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Overview

StatusCare and Maintenance
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life2023
Atlantic Operations consists of Touquoy open pit, along with three additional projects nearby at Beaver Dam, 15 Mile and Cochrane Hill.

Atlantic Operations announced in July 2023 that due to the inability to obtain permits for in-pit tailings deposition within a reasonable time, the Touquoy mine will move to care and maintenance.

October 2023 - Touquoy operation has recently transitioned into Care and Maintenance.

The priority is the standalone development of 15 Mile with the relocation of the Touquoy processing plant confirmed as an attractive development option. As a result the St Barbara has withdrawn existing permit applications relating to in-pit tailings at Touquoy and the previous development plans for Beaver Dam and Fifteen Mile.

Owners

Source: p. 4,85
CompanyInterestOwnership
St Barbara Ltd. 100 % Indirect
St Barbara Limited owns the Atlantic Gold operation through its wholly owned subsidiary Atlantic Mining NS Inc.

Contractors

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Deposit Type

  • Orogenic
  • Vein / narrow vein
  • Mesothermal

Summary:

The known deposits within the Atlantic operation area are considered to be examples of turbidite-hosted, orogenic mesothermal gold deposits.

The Meguma Terrane of Nova Scotia hosts the Moose River Member, Tangier Member, and Taylors Head Member of the basal greywacke-dominated Goldenville Formation. Gold mineralization is generally hosted in argillite and/or greywacke sequences of the Moose River Member and is associated with regional-scale anticlines. Structural repetition due to folding and faulting may result in thickening of gold-bearing units.

Gold occurs as native gold, and has been observed in a number of settings, including along shear cleavage, hair line fractures; in pressure shadows; as inclusions; on the margins of sulphide grains; in thin, bedding-parallel quartz veins and stringers. Mineralization is associated with sulphides, including arsenopyrite, pyrite and pyrrhotite. Lesser chalcopyrite, galena, and sphalerite have been observed.

Gold grade was estimated using multiple indicator kriging (MIK) for all deposits. The basic unit of estimation is a panel with horizontal dimensions equal to the average drill hole spacing.

Dimensions
Touquoy: strike extent = 810m ; width = 50m; vertical extent = 150m.

Beaver Dam: strike extent = 810m ; width = 50m; vertical extent = 200m.

Fifteen Mile Stream: strike extent = 1400m ; width = variable 20m to 100m; vertical extent = 225m.

Cochrane Hill ........

Mining Methods

  • Truck & Shovel / Loader

Summary:

Touquoy mine
2023 - In-pit mining ceased in February, at which time the operation commenced processing historic stockpiles. Touquoy operation has transitioned into Care and Maintenance.

Description (2019)
Mining is based on conventional open pit methods suited for the project location and local site requirements. The mining fleet will include diesel powered down the hole (DTH) drills with 144 mm bit size for production drilling, diesel-powered RC drills for bench-scale grade control drilling, 5 m3 bucket size diesel hydraulic excavators and 7 m3 bucket sized wheel loaders for production loading, and 64 t payload rigid-frame haul trucks and 41 t articulated trucks for production hauling, plus ancillary and service equipment to support the mining operations. In-pit dewatering systems will be established for each pit. All surface water and precipitation in the pits will be handled by submersible pumps.

Pit designs are configured on 10 m bench heights, with 8m wide berms placed every two benches, or double benching. Bench face angles, and subsequent inter-ramp angles are varied based on prescribed azimuths and depth from surface, as specified by each geotechnical report.

The pit slope criteria for Touquoy are based on a 2011 geotechnical report by Peter O’Bryan & Associates (O’Bryan, 2011). The shallower slopes at the 60 m depth are based on the requirement for a 15 m wide catch berm at this bench.

15 Mile project (2023)

Crushing and Grinding
Source: Source p.331-333
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Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.

Production:
Atlantic Gold was acquired on 19 July 2019. Reported Q1 Sep FY20 production included 4,362 ounces produced by Atlantic Gold prior to acquisition.

CommodityUnits202320222021202020192018
Gold oz  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required90,531
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics20232022202120202018
Annual milling capacity  ......  Subscription required  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required4,574 kt3,972,813 t
Waste  ......  Subscription required  ......  Subscription required  ......  Subscription required3,491 kt
Total tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required7,609,000 t6,800,668 t
Tonnes milled  ......  Subscription required  ......  Subscription required  ......  Subscription required2,588 kt2,108,420 t
Daily mining rate  ......  Subscription required  ......  Subscription required  ......  Subscription required18,632 t
Daily milling rate  ......  Subscription required  ......  Subscription required  ......  Subscription required5,776 t
Subscription required - Subscription is required.

Reserves at December 31, 2022:
Ore Reserves Cut-off Grades: 0.3 g/t Au – 0.4 g/t Au.
Mineral Resources Cut-off Grades: 0.3 g/t Au.

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven Stockpiles 5,420 kt Gold 0.5 g/t 80 koz
Proven In-Situ (OP) 20,420 kt Gold 1.1 g/t 753 koz
Probable In-Situ (OP) 20,120 kt Gold 1.1 g/t 696 koz
Proven & Probable Stockpiles 5,420 kt Gold 0.5 g/t 80 koz
Proven & Probable In-Situ (OP) 40,550 kt Gold 1.1 g/t 1,449 koz
Measured In-Situ (OP) 22,135 kt Gold 1.1 g/t 800 koz
Indicated In-Situ (OP) 28,461 kt Gold 1 g/t 922 koz
Inferred In-Situ (OP) 6,428 kt Gold 1.1 g/t 221 koz
Total Resource In-Situ (OP) 57,024 kt Gold 1.1 g/t 1,942 koz

Commodity Production Costs:

CommodityUnits2023202220212020
Credits (by-product) Gold AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Cash costs Gold AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total cash costs Gold AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in sustaining costs (AISC) Gold AUD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Financials:

Units20232022202120202018
Sustaining costs M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 9.1  CAD
Growth Capital M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Capital expenditures M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required 128.3  CAD
Gross profit M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Operating Income M 55.9  CAD
Pre-tax Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
After-tax Income M 27.9  CAD
EBITDA M  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Operating Cash Flow M 69.6  CAD
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Water Supply
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2023
....................... Subscription required ....................... Subscription required Subscription required Oct 27, 2023
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required Subscription required Subscription required 2021
Subscription required Subscription required Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Annual Report 2023
Corporate Presentation 2023
Press Release 2023
Quarterly Report 2023
Annual Report 2022
Corporate Presentation 2022
Quarterly Report 2022
Sustainability Report 2022
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Technical Report 2017
Feasibility Study Report 2015
Preliminary Economic Assessment 2014
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