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United States
Nevada Gold Mines Operation (Carlin Complex, Cortez Complex, Long Canyon Mine, Phoenix Mine, Turquoise Ridge Mine)

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 Location:
52 km NW from Elko, Nevada, United States

  Regional Office:
1655 Mountain City Hwy
Elko
Nevada, United States
89801
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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

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Gold
  • Silver
  • Copper
Mining Method
  • Truck & Shovel / Loader
  • Drift & Fill
  • Mechanized Cut & Fill
  • Longhole stoping
  • Longhole open stoping
  • Transverse stoping
  • Cemented backfill
  • Paste backfill
Nevada Gold Mines includes: Carlin Complex, Cortez Complex (including Goldrush), Turquoise Ridge Complex, Long Canyon and Phoenix Mines.

Assets in Nevada Gold Mines are 10 Underground Mines, 12 Open Pit Mines, 2 Roaster Facilities, 2 Autoclave Facilities, 2 Flotation Facilities, 2 Oxide Mills, 8 Heap Leach Facilities.


Owners

Source: p. 81
CompanyInterestOwnership
Newmont Corp. 38.5 % Indirect
Barrick Gold Corp. (operator) 61.5 % Indirect
On March 10, 2019, Barrick entered into an implementation agreement with Newmont to create a joint venture, named Nevada Gold Mines.

Barrick is the operator of the joint venture and owns 61.5%, with Newmont owning the remaining 38.5% of the joint venture.

Contractors

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Deposit Type

  • Carlin-type
  • Skarn
  • Carbonate hosted
  • Intrusion related
  • Sediment-hosted


Summary:

The deposits that comprise the Nevada Operations are considered to be examples of Carlin-style carbonate-hosted disseminated gold–silver deposits and intrusion-related gold–copper–silver skarn deposits. Host rocks for Carlin-style deposits are most commonly thinly-bedded silty or argillaceous carbonaceous limestone or dolomite, commonly with carbonaceous shale. Although less mineralized, non-carbonate siliciclastic and rare metavolcanic rocks can locally host gold that reaches economic grades. Felsic plutons and dikes may also be mineralized at some deposits. Deposits typically have a tabular shape, are stratabound, localized at contacts between contrasting lithologies, but can also be discordant or breccia related. Mineralization consists primarily of micrometer-sized gold and sulfide grains disseminated in zones of siliciclastic and decarbonated calcareous rocks and are commonly associated with jasperoids. Major ore minerals include native gold, pyrite, arsenopyrite, stibnite, realgar, orpiment, cinnabar, fluorite, barite, and rare thallium minerals. Gangue minerals typically comprise fine-grained quartz, barite, clay minerals, carbonaceous matter, and late-stage calcite veins. Host rocks for intrusion-related gold–copper–silver skarn deposits include sedimentary carbonates, calcareous clastic rocks, volcaniclastic rocks or (rarely) volcanic flows. They are commonly related to high to intermediate-level stocks, sills, and dykes of gabbro, diorite, quartz diorite, or grano ........


Mining Methods

  • Truck & Shovel / Loader
  • Drift & Fill
  • Mechanized Cut & Fill
  • Longhole stoping
  • Longhole open stoping
  • Transverse stoping
  • Cemented backfill
  • Paste backfill


Summary:

Open pit mining is conducted using conventional techniques and an Owner-operated conventional truck and shovel fleet. Open pit operations include the following: South Arturo, Goldstrike, Tri-star, Gold Quarry, Cortez, Pipeline, Crossroads, Long Canyon, Phoenix, Vista and Mega.

Open pit mining is conducted using conventional techniques and an Owner-operated conventional truck and shovel fleet.

Ultimate open pit designs were developed based on pit optimization analysis. The pit limits incorporate geotechnical and hydrological recommendations into final high walls and are designed to include ramps and access to haulage routes to waste rock storage facilities (WRSFs) and processing facilities. Some deposits include phased pit designs which are used to sequence the mining operation. Phases are designed to optimize the economics of the operation and/or provide access to selected ore for blending purposes. Haul road effective widths for two-way travel range from 98–141 ft with a maximum grade of 10%. For singlelane haul roads, a minimum road width of 80 ft could be used for the bottom benches of the pit. Bench heights vary from 20–40 ft, and can be 60 ft where triple-benching is employed. Blast patterns are laid out according to material type using rock type designations.

Underground mining is currently conducted using conventional stoping methods, and conventional mechanized equipment. Underground operations include the following: Leeville, Pete Ba ........


Crushing and Grinding


Processing

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Summary:

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Production:

CommodityUnits20232022202120202019
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
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Operational Metrics:

Metrics2022202120202019
Ore tonnes mined  ......  Subscription required  ......  Subscription required67,436 kt51,363 kt
Waste OP  ......  Subscription required  ......  Subscription required295,407 kt256,696 kt
Total tonnes mined  ......  Subscription required  ......  Subscription required362,843 kt308,059 kt
Tonnes processed  ......  Subscription required  ......  Subscription required70,202 kt59,714 kt
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Reserves at December 31, 2022:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven & Probable Stockpiles 65,195 kt Gold 2.32 g/t 4,883 koz
Proven & Probable In-Situ (OP) 414,026 kt Gold 1 g/t 13,273 koz
Proven & Probable In-Situ (UG) 107,273 kt Gold 8.75 g/t 30,156 koz
Proven & Probable Total 586,494 kt Gold 2.56 g/t 48,286 koz
Proven & Probable Total 170,130 kt Silver 6.34 g/t 34,649 koz
Proven & Probable Total 230,390 kt Copper 0.16 % 831 M lbs
Measured & Indicated Total 583,896 kt Gold 1.68 g/t 31,584 koz
Measured & Indicated Total 218,442 kt Silver 5.46 g/t 38,338 koz
Measured & Indicated Total 310,390 kt Copper 0.14 % 935 M lbs
Inferred Total 387,792 kt Gold 1.47 g/t 18,286 koz
Inferred Total 48,571 kt Silver 5.57 g/t 8,701 koz
Inferred Total 51,688 kt Copper 0.13 % 156 M lbs

Commodity Production Costs:

CommodityUnits20232022202120202019
Total cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in sustaining costs (AISC) Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in sustaining costs (AISC) Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
† Net of By-Product.
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Operating Costs:

Units2022202120202019
OP mining costs ($/t mined) USD 2.84  2.26  1.91  1.94  
UG mining costs ($/t mined) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Financials:

Units202220212020
Growth Capital M USD  ......  Subscription required
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Revenue M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Operating Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
After-tax Income M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
EBITDA M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
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Water Supply
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Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
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Staff:

EmployeesContractorsYear
Subscription required Subscription required 2018

Corporate Filings & Presentations:

DocumentYear
Annual Information Form 2022
Annual Report 2022
Corporate Presentation 2022
Form 10-K 2022
Quarterly Report 2022
................................... Subscription required 2021
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Form 10-K 2018
Technical Report 2018
Operations & Technical Update 2017
Annual Report 2015
Preliminary Economic Assessment 2009
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