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Canada
Greenstone Project

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 Location:
4 km S from Geraldton, Ontario, Canada

  Project Contacts:
2381 Bristol Circle, Suite B203
Oakville
Ontario, Canada
L6H 5S9
Phone  ...  Subscription required
Fax905-829-7880
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
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  • Reserves
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  • Fleet
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  • Filings & News

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Overview

StageConstruction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life13.7 years (as of Jan 1, 2020)
The Project encompasses the former Hardrock, MacLeod-Cockshutt and Mosher underground mines which operated from the late 1930s until about 1970 and together produced more than two million ounces of gold.


Owners

Source:
CompanyInterestOwnership
Orion Mine Finance Group 40 % Indirect
Equinox Gold  Corp. (operator) 60 % Indirect
Jan. 19, 2021 (GLOBE NEWSWIRE) -- Centerra Gold Inc. (“Centerra”) (TSX: CG) announced today the completion of the previously announced sale of Centerra’s 50% interest in the Greenstone Gold Mines Partnership (“GGM”) to an affiliate of the Orion Mine Finance Group. Premier owns the other 50% interest of GGM.

On April 16, 2021 - Equinox Gold Corp. completed its acquisition of an additional 10% interest in the multi-million-ounce, fully permitted, construction-ready Greenstone Project in Ontario, Canada, bringing its total interest in the project to 60%.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Banded iron formation hosted
  • Vein / narrow vein


Summary:

The Hardrock Project lies within the granite-greenstone Wabigoon Subprovince of the Archean Superior craton, in eastern Canada. The Wabigoon Subprovince, averaging 100 km wide, is exposed for some 900 km eastward from Manitoba and Minnesota, beneath the Mesoproterozoic cover of the Nipigon Embayment, to the Phanerozoic cover of the James Bay Lowlands (Card and Poulsen, 1998). The Wabigoon Subprovince is bounded on the south by the metasedimentary Quetico Subprovince, on the northwest by the plutonic Winnipeg River Subprovince, and on the northeast by the metasedimentary English River Subprovince. The Wabigoon-Quetico Subprovince boundary is a structurally complex, largely faulted interface.

The Hardrock Property is located within the Beardmore-Geraldton Greenstone belt that contains several narrow, east-west striking sequences of volcanic and sedimentary rocks of Archean age. The southern edges of these sequences are spatially related to the through-going, major structural discontinuities thought to be thrust faults that have imbricated the sedimentary sequences. A comprehensive description of the regional geology can be found in Smyk et al., 2005. In the Geraldton area, most of the gold mines and a number of gold showings occur within or in proximity to the Bankfield-Tombill Deformation Zone (also known as the Barton Bay Deformation Zone), a zone of folding and shearing up to 1 km wide. The southern limit of the Tombill-Bankfield Deformation Zone is marked by the ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Project consists of developing an open pit that will mine through the historical underground workings of the MacLeod-Cockshutt and Hard Rock Mines. Furthermore, the proposed open pit location is bisected by the Trans-Canada Highway 11 and requires a new by-pass and the relocation of various surface infrastructures.

Mining of the Hardrock main pit will occur in five main phases preceded by a starter pit.

The phase designs introduce different geotechnical slope profiles for temporary pit walls. The temporary wall slope profile allows for wider catch benches to allow for overbank hazard management on pit walls. Overbank hazard results from muck from one phase spilling down the slope of the previous pit phase, filling the catch benches. This creates an increased rockfall hazard for workers and equipment at the bottom of the previous pit phase.

The objective of pit phasing is to improve the economics of the Project by feeding the highest grade during the earlier years and/or delaying waste stripping until later years. The starter pit and Phase 1 are designed to initiate mining before the Trans Canada Highway is relocated. With the mineralization plunging westward, the pit phases progressively expand to the west.

The starter pit phase is designed to avoid various surface constraints such as the Trans-Canada Highway 11. Mining during the pre-production period is concentrated in the starter pit which provides for a 50 m buffer with t ........


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold koz 3665,051
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics
Stripping / waste ratio  ......  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 capacity  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
Annual processing capacity  ......  Subscription required
Annual mining rate  ......  Subscription required
Annual ore mining rate  ......  Subscription required
Mining scale, tpd  ......  Subscription required
Processing scale, tpd  ......  Subscription required
* According to 2020 study.
Subscription required - Subscription is required.

Reserves at August 8, 2019:
Mineral Reserves are estimated at a cut-off grade of 0.35 g Au/t.
Open Pit Mineral Resources are estimated at a cut-off grade of 0.30 g Au/t.
Underground Mineral Resources are estimated at a cut-off grade of 2.00 g Au/t.

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (OP) 5,623 kt Gold 1.28 g/t 232 koz
Probable In-Situ (OP) 129,700 kt Gold 1.27 g/t 5,307 koz
Proven & Probable In-Situ (OP) 135,323 kt Gold 1.27 g/t 5,539 koz
Indicated In-Situ (OP) 5,972 kt Gold 1.21 g/t 231,400 oz
Indicated In-Situ (UG) 9,792 kt Gold 3.93 g/t 1,237,400 oz
Indicated Total 15,764 kt Gold 2.9 g/t 1,468,800 oz
Inferred In-Situ (OP) 356 kt Gold 1.14 g/t 13,100 oz
Inferred In-Situ (UG) 24,593 kt Gold 3.87 g/t 3,059,100 oz
Inferred Total 24,949 kt Gold 3.83 g/t 3,072,200 oz

Commodity Production Costs:

CommodityAverage
Total cash costs Gold  ......  Subscription required&nbs
All-in sustaining costs (AISC) Gold  ......  Subscription required&nbs
Assumed price Gold  ......  Subscription required *
* According to 2020 study / presentation.

Operating Costs:

Units2020
OP mining costs ($/t mined) CAD 2.41 *
OP mining costs ($/t milled) CAD  ......  Subscription required
Processing costs ($/t milled) CAD  ......  Subscription required
G&A ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2020 study.
Subscription required - Subscription is required.

2020 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $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
Processing OpEx $M CAD 968
Refining and transportation $M CAD  ......  Subscription required
G&A costs $M CAD 401
Total OpEx $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Royalty payments $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
Pre-tax NPV @ 5% $M CAD  ......  Subscription required
Pre-tax NPV @ 8% $M CAD  ......  Subscription required
After-tax NPV @ 5% $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
Subscription required - Subscription is required.


Heavy Mobile Equipment:
HME TypeModelSizeQuantityStatusRef. Date
Backhoe 29 cu. m ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
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....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
Shovel ....................... Subscription required 29 cu. m ....................... Subscription required Existing Jul 28, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
Truck (haul) ....................... Subscription required ....................... Subscription required Existing Feb 7, 2023
Truck (haul) ....................... Subscription required 250 t ....................... Subscription required Existing Feb 7, 2023
....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
....................... Subscription required ....................... Subscription required ....................... Subscription required Proposed Dec 16, 2020
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Dec 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Dec 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Dec 16, 2020
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 11, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
Other 2023
Corporate Presentation 2022
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Year-end Mineral Reserves 2017
Technical Report 2016
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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