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United States
Carlin Complex (Chukar Mine, Emigrant / Rain Mine, Exodus Mine, Gold Quarry Mine, Goldstar Mine, Goldstrike Mine, Leeville Mine, Pete Bajo Mine, Silverstar (Genesis) Mine)

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 Location:
31 km NW from Carlin, Nevada, United States

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

StageProduction
Mine TypeOpen Pit & Underground
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
  • Drift & Fill
  • Longhole stoping
  • Timbered stoping
  • Longitudinal stoping
  • Cemented backfill
  • Paste backfill
Production Start...
Mine Life2044
On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin operation were contributed to the Nevada Gold Mines joint venture and are now collectively referred to as Carlin.

The Carlin Complex is a series of both open pit and underground operating mines, advanced projects, and seven processing facilities and associated infrastructure. The Complex’s operating mines and advanced projects include the Goldstrike open pit and underground mine, the Leeville underground mine, the Pete Bajo/Fence underground mine, the Exodus underground mine, the Genesis/Tri-Star Complex open pits (Goldstar and Silverstar), the Gold Quarry open pit, Emigrant open pit and the satellite open pit deposits (Perry and Green Lantern).


Owners

Source: p. 76-77
CompanyInterestOwnership
Newmont Corp. 38.5 % Indirect
Barrick Gold Corp. (operator) 61.5 % Indirect
On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin operation were contributed to the Nevada Gold Mines joint venture and are now collectively referred to as Carlin.

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

Contractors

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Deposit Type

  • Sediment-hosted
  • Carlin-type
  • Stratabound
  • Hydrothermal


Summary:

The mineral deposits along the Carlin Trend form a suite of deposits known as Carlin-type. Carlin deposits comprise stratabound disseminated gold mineralization hosted by Silurian-Devonian carbonate rocks that have been metamorphosed to varying extents. The deposits are hydrothermal in origin and are usually structurally controlled. The carbonate host rocks are part of an autochthonous miogeoclinal carbonate sequence exposed as tectonic windows beneath the Roberts Mountains allochthon. The allochthonous rocks are a sequence of lower Paleozoic dominantly siliciclastic eugeoclinal rocks that were displaced eastward along the Roberts Mountains Thrust over younger units during the Upper Paleozoic Antler Orogeny. The Carlin Trend is the largest concentration of gold deposits in North America. NGM and other companies have discovered over 40 deposits along the 64 kilometre long, north–northwest-oriented Carlin Trend. Gold deposits are generally hosted in a variable stratigraphic package of Ordovician through Lower Mississippian rocks. The preferential host rocks are autochthonous carbonate assemblage rocks that are now preserved in uplifted tectonic windows. All Carlin Trend gold deposits that have been discovered to date are either within the Bootstrap, Lynn, Carlin, and Rain tectonic windows, or proximal to them. Within specific deposits, Cretaceous and Tertiary dike swarms and a Jurassic-aged granodiorite stock (Goldstrike stock) may constitute as much as 15% of the mineralized m ........


Mining Methods

  • Truck & Shovel / Loader
  • Drift & Fill
  • Longhole stoping
  • Timbered stoping
  • Longitudinal stoping
  • Cemented backfill
  • Paste backfill


Summary:

The Carlin Complex has three major open pit operations including Goldstrike, Gold Quarry and Goldstar (part of the Genesis/Tri-Star Complex). All three are truck and shovel operations. Blasting is required and blast patterns are laid out according to material type using rock type designations of hard, average, soft, or a combination of the three. The pit design varies between 6.1 metre to 12.2 metre (20 to 40 ft) benches and, where possible, up to 18.3 metre (60 ft) benches in the ore, though mined in 6.1 metre (20 ft) cuts. Slopes vary based on location.

The Carlin Complex has three major operating underground mines including Goldstrike underground, Leeville and the Portal Mines (including Pete Bajo and Exodus/Northwest Exodus, El Niño, Rita K). All mines utilize drift and fill and/or long-hole stoping and are accessed by shaft or portals.

Ground conditions vary greatly in the different mining areas. Poor conditions in some areas are due to increased brecciation and/or alteration of original structures. Oxidation affects rock strengths in some areas and requires corrosion-resistant ground support. Generally low-strength rock conditions are the key factor in the mine design and mining method selection.

Leeville has three shafts; the No. 1 shaft has two 7-cubic yard (~10 ton) skips for transporting aggregate for CRF underground and one station on the 4675 Level; the No. 2 shaft has two 7-cubic yard (~10 ton) skips for transporting ore to surf ........


Crushing and Grinding
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Processing

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Summary:

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Production:
On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin were contributed to Nevada Gold Mines and are now referred to as Carlin.

CommodityUnits2022202120202019201820172016
Gold koz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required927972944
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.
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Operational Metrics:

Metrics20212020201820172016
Total tonnes mined  ......  Subscription required  ......  Subscription required
Ore tonnes mined  ......  Subscription required  ......  Subscription required
Waste  ......  Subscription required  ......  Subscription required
Stripping / waste ratio  ......  Subscription required  ......  Subscription required
Tonnes processed  ......  Subscription required  ......  Subscription required8.2 M tons8.5 M tons8.4 M tons
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Reserves at December 31, 2021:

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven & Probable In-Situ (OP) 137 Mt Gold 2.23 g/t 10 M oz
Proven & Probable In-Situ (UG) 31 Mt Gold 8.86 g/t 8.8 M oz
Proven & Probable Total 163 Mt Gold 3.46 g/t 18 M oz
Measured In-Situ (OP) 46 Mt Gold 2.33 g/t 3.4 M oz
Measured In-Situ (UG) 37 Mt Gold 7.53 g/t 9 M oz
Measured Total 83 Mt Gold 4.68 g/t 13 M oz
Indicated In-Situ (OP) 244 Mt Gold 1.82 g/t 14.6 M oz
Indicated In-Situ (UG) 20 Mt Gold 6.97 g/t 4.4 M oz
Indicated Total 276 Mt Gold 2.2 g/t 20 M oz
Inferred In-Situ (OP) 94 Mt Gold 1.2 g/t 3.6 M oz
Inferred In-Situ (UG) 16 Mt Gold 7.5 g/t 3.9 M oz
Inferred Total 111 Mt Gold 2.1 g/t 7.5 M oz

Commodity Production Costs:

CommodityUnits202220212020201920182017
Total cash costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Total cash costs Gold USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
Total cash costs (sold) Gold USD 843 / oz†   823 / oz†  
All-in sustaining costs (AISC) Gold USD  ......  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 (sold) Gold USD 1,027 / oz†   1,030 / oz†  
All-in costs Gold USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
All-in costs Gold USD  ......  Subscription required†  ......  Subscription required†  ......  Subscription required†
^ Guidance / Forecast.
† Net of By-Product.
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Operating Costs:

Units202120202019
OP mining costs ($/t mined) USD 2.132.022.32
UG mining costs ($/t mined) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Financials:

Units202120202019201820172016
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 153   174   173  
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 152   174   163  
Revenue M USD  ......  Subscription required  ......  Subscription required
Operating Income M USD  ......  Subscription required  ......  Subscription required
Pre-tax Income M USD 79   139   144  
EBITDA M USD  ......  Subscription required  ......  Subscription required
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Heavy Mobile Equipment as of March 25, 2020:
HME TypeQuantity
Bolter ....................... Subscription required
Dozer ....................... Subscription required
Dozer (rubber tire) ....................... Subscription required
Drill ....................... Subscription required
Drill (long hole) ....................... Subscription required
Excavator ....................... Subscription required
Grader ....................... Subscription required
Jumbo ....................... Subscription required
Loader ....................... Subscription required
Loader (FEL) ....................... Subscription required
Personnel Carrier ....................... Subscription required
Shovel ....................... Subscription required
Truck (haul) ....................... Subscription required
Truck (water) ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNamePhoneProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Aug 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 5, 2022
....................... Subscription required ....................... Subscription required ....................... Subscription required Subscription required Aug 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 5, 2022
....................... Subscription required ....................... Subscription required Subscription required Aug 5, 2022
Subscription required - Subscription is required.

Staff:

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

Corporate Filings & Presentations:

DocumentYear
Annual Information Form 2022
Annual Report 2022
Corporate Presentation 2022
Quarterly Report 2022
................................... 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 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Form 10-K 2018
Technical Report 2018
Year-end Mineral Reserves 2018
Annual Report 2017
Year-end Mineral Reserves 2017
Form 10-K 2016
Year-end Mineral Reserves 2016
Form 10-K 2015
Other 2015
Year-end Mineral Reserves 2015
Other 2011
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