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Canada
Galore Creek Project

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 Location:
219 km SE from Juneau, British Columbia, Canada

  Project Contacts:
Suite 3300, Bentall 5 550 Burrard Street
Vancouver
British Columbia, Canada
V6C 0B
Phone  ...  Subscription required
Fax604-699-4750
EmailEmail
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Filings & News

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Overview

StatusCare and Maintenance
Mine TypeOpen Pit
Commodities
  • Copper
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Processing
  • Gravity separation
  • Flotation
Mine Life18 years (as of Jan 1, 2011)
The Galore Creek Project is currently in care and maintenance, managing environment, social and permit conditions.
Latest NewsNOVAGOLD Sells its 50% share of Galore Creek to Newmont     October 3, 2018


Owners & OPERATOR

Source: p. 42
CompanyInterestOwnership
Teck Resources Ltd. (operator) 50 % Indirect
Newmont Corp. 50 % Indirect
The project is owned by the Galore Creek Partnership, a 50/50 partnership between Teck and Newmont Mining Corp., and is managed by the Galore Creek Mining Corporation (GCMC), a wholly-owned subsidiary of the Galore Creek Partnership.

Deposit Type

  • Porphyry


Summary:

The Galore Creek property is interpreted to be an example of an alkalic porphyry copper–gold–silver system.

The Project is situated within the Stikine Terrane, an exotic terrane accreted to the ancestral North American craton. A sequence of Permian, Mississippian and Devonian age calc-alkaline and bimodal flows and volcaniclastic rocks, interbedded carbonate and minor shale and chert, termed the Stikine assemblage, form the basement of the terrane. Unconformably overlying the Stikine assemblage is a succession of Lower to Middle Triassic sedimentary and upper Triassic volcanic rocks.

The Galore Creek Syenite Complex, of Tertiary age, is centered in the west fork of Galore Creek and is 5 km in length and 2 km in width. The deposits are hosted by potassium-enriched volcanic rocks and pipe-like breccias adjacent to syenite stocks and dykes. They are manto-shaped, and trend north to northeast, following either, or both, syenite contacts and structural breaks. To date, 14 deposits and prospects have been identified, five of which, the Central Zone, Southwest Zone, Junction Zone West Fork Zone and Middle Creek Zone are of economic interest.

The Galore Creek property has undergone at least three temporally different mineralizing events. These include the early formation of the nearby Copper Canyon eruptive centre and its associated mineralization; deposition of the Central Zone mineralization at the Central and Junction deposits, and the Butte prospect; and emplacement of the West Fork mineralization at the Southwest and West Fork deposits.

Bornite and generally higher-grade gold are developed in the intense potassic alteration zone, and are associated with magnetite and sparse pyrite. Within the propylitic zone, zones of moderate potassic alteration have developed, and have associated chalcopyrite and pyrite mineralization. External to these potassic zones, but still within the propylitic zone, replacement lodes of gold, silver and base metals have formed.

In the opinion of the QPs, knowledge of the deposit settings, lithologies, and structural and alteration controls on mineralization is sufficient to support Mineral Resource and Mineral Reserve estimation. The mineralization style and setting of the Project deposit is also sufficiently well understood to support Mineral Resource and Mineral Reserve estimation. Prospects and targets are at an earlier stage of exploration, and the lithologies, structural, and alteration controls on mineralization are currently insufficiently understood to support estimation of Mineral Resources.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The proposed Project will be a conventional, large-tonnage, open-pit operation with approximately 528 Mt of ore processed over the life-of-mine, at a nominal daily throughput of 95,000 t/d.

Because of the revised Mineral Resource estimate, and changes to the metallurgical recovery assumptions and different commodity price assumptions, AMEC redeveloped the mine plan for the Project.

The mine plan for Galore Creek deposits was based on mining six separate phases that were developed from detailed designs based on optimized WhittleTM pit shells for four open pits, at Central, Junction, West Fork, and Southwes.

Mining equipment selection was based on the mine production schedule and equipment productivities, as well as consideration of workforce and operating hours. The operation will use a conventional truck-and-shovel fleet. In the opinion of the AMEC QPs, the fleet is appropriate to the planned production schedule.


Crushing and Grinding


Processing

  • Gravity separation
  • Flotation

Source: Subscription required

Summary:

The design criteria for the process plant were based on processing ore through a conventional crushing, grinding and flotation plant using conventional processes and equipment. The plant is proposed to handle a blend of ore from the various zones of the Galore Creek deposits. A no-stockpile blending strategy will be utilized to deliver consistent copper grades to optimize process plant performance.

Run-of-mine (ROM) ore will feed a single gyratory crusher in the Galore Creek Valley. Crushed ore will then be transported via three overland conveyors from Galore Creek Valley, through the access tunnel to the West More Valley, to a single coarse ore stockpile near the mill site that will be adjacent to the proposed West More tailings facility.

Apron feeders will reclaim ore from the coarse ore stockpile to feed a semi-autogenous grinding (SAG) mill. SAG discharge material will be screened, with coarse pebbles reporting to two cone crushers before reporting back to th ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Copper Head Grade, % 0.59
Gold Head Grade, g/t 0.35
Silver Head Grade, g/t 6.02

Projected Production:

CommodityUnitsAvg. AnnualLOM
Copper k lbs 322,0005,950,000
Gold koz  ......  Subscription required  ......  Subscription required
Silver koz  ......  Subscription required  ......  Subscription required
All production numbers are expressed as payable metal.

Operational Metrics:

Metrics
Stripping / waste ratio 2.16 *
Waste tonnes, LOM 1,138,842 kt *
Total tonnes mined, LOM 1,666,811 kt *
Annual milling capacity 34.6 Mt *
Daily processing capacity 95,000 t *
Tonnes processed, LOM 527,969 kt *
* According to 2011 study.

Reserves at December 31, 2018:

CategoryTonnage CommodityGradeContained Metal
Measured 256,800 kt Copper 0.72 % 1,840 kt
Measured 256,800 kt Gold 0.36 g/t 3,020 koz
Measured 256,800 kt Silver 5.8 g/t 47,800 koz
Indicated 846,800 kt Copper 0.39 % 3,280 kt
Indicated 846,800 kt Gold 0.23 g/t 6,240 koz
Indicated 846,800 kt Silver 3.7 g/t 102,040 koz
Measured & Indicated 1,103,600 kt Copper 0.47 % 5,120 kt
Measured & Indicated 1,103,600 kt Gold 0.26 g/t 9,260 koz
Measured & Indicated 1,103,600 kt Silver 4.2 g/t 149,840 koz
Inferred 198,200 kt Copper 0.27 % 520 kt
Inferred 198,200 kt Gold 0.21 g/t 1,340 koz
Inferred 198,200 kt Silver 2.6 g/t 16,880 koz

Commodity Production Costs:

CommodityUnits2020
Credits (by-product) Copper CAD -1.04 / lb *
Cash costs Copper CAD 1.83 / lb *
Cash costs Copper CAD 0.79 / lb *†
Assumed price Copper USD 2.5 / lb *
Assumed price Silver USD 16.9 / oz *
Assumed price Gold USD 1,050 / oz *
* According to 2011 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2020
OP mining costs ($/t mined) CAD 6.7 *
Processing costs ($/t milled) CAD  ......  Subscription required
Total operating costs ($/t milled) CAD  ......  Subscription required
* According to 2011 study.
Subscription required - Subscription is required.

2011 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 3,041
G&A costs $M CAD 385.4
Total OpEx $M CAD  ......  Subscription required
Total Taxes $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 @ 7% $M CAD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Proposed Heavy Mobile Equipment as of August 12, 2011:
HME TypeSizeQuantity
Drill 5
....................... Subscription required ....................... Subscription required 1
....................... Subscription required ....................... Subscription required 3
....................... Subscription required ....................... Subscription required 2
....................... Subscription required ....................... Subscription required 40
Subscription required - Subscription is required.

Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2018
Annual Information Form 2017
Annual Report 2015
Pre-Feasibility Study Report 2011
Subscription required - Subscription is required.

News:

NewsDate
NOVAGOLD Sells its 50% share of Galore Creek to Newmont October 3, 2018

Aerial view:

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