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Canada
Carol Lake Mine

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 Location:
0 km from Labrador City, Newfoundland and Labrador, Canada

  Address:
2 Avalon Drive
Labrador City
Newfoundland and Labrador, Canada
A2V 2Y6
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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
Commodities
  • Iron
Mining Method
  • Truck & Shovel / Loader
Processing
  • Gravity separation
  • Spiral concentrator / separator
  • Flotation
  • Magnetic separation
Mine Life23 years (as of Jan 1, 2021)
Iron Ore Company currently operates open pit mines, a concentrator and a pellet plant in Labrador City, and transports its products along a 418 kilometre (km) railway to its port facilities in Sept-Îles, Quebec on the St Lawrence Seaway.
Latest NewsLabrador Iron Ore Royalty Corporation (TSX:LIF) - Rio Tinto Releases IOC Production and Sales Information     January 18, 2022


Owners

Source: p. 7
CompanyInterestOwnership
Labrador Iron Ore Royalty Corp. 15.1 % Indirect
Mitsubishi Materials Corp. 26.18 % Indirect
Rio Tinto plc 58.72 % Indirect
IOC is currently owned by three shareholders, and their respective interests in IOC are as follows: Rio Tinto 58.72%, Mitsubishi Corporation 26.18% and Labrador Iron Ore Royalty Corp. (LIORC) 15.10%.

Deposit Type

  • Metamorphic


Summary:

The Labrador Trough consists of Paleoproterozoic sedimentary and volcanic rocks, which extend along the eastern margin of the Archean Superior Craton to Ungava Bay. It forms the western part of a larger orogenic belt called the New Québec Orogen. In southwestern Labrador, the Labrador Trough extends into the younger Grenville Province, where the sedimentary rocks were deformed and metamorphosed.

The western boundary of the Labrador Trough is the basal unconformity between Paleoproterozoic sedimentary rocks and the Archean basement. To the east, it is bounded by allochthonous deep-water sedimentary and volcanic rocks, possibly derived from an oceanic realm. The sedimentary sequence of the Labrador Trough, termed the Kaniapiskau Supergroup, is interpreted to include a lower rift-related sequence and an upper transgressive sequence that progresses from shelf sediments at the base through deepwater turbidites and into shallow marine and terrestrial rocks at the top.

Several large metataconite deposits are located in the Labrador City–Wabush area and adjacent Québec, and have been mined continuously since the 1960s. These deposits are all thought to represent a single stratigraphic horizon, and the economic deposits are largely developed by hinge-thickening and fold repetition.

The Carol Lake deposits consist of 13 separate ore bodies, of which two are currently active. Individual deposits are associated with thickening of the magnetite–hematite schist on the closures of synforms and its repetition by complex isoclinal folds, which increase the aggregate thickness of deposits to approximately 400 m, in places.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Mining is carried out using open pit techniques, which involve the drilling, blasting and hauling of waste rock and ore. Broken ore is loaded by electric shovels and transported by truck to either the Automatic Train Operation (ATO) or the Parallel Ore Delivery System (PODS). The ATO system consists of four underground loading pockets where the as-mined ore is transferred from mine haul trucks to unmanned automatic trains. The automatic trains carry broken ore from the loading pockets to a crusher located adjacent to IOC’s processing facilities, a distance of between 8 and 12 kilometres from the loading pockets. The PODS consists of a gyratory crusher located adjacent to the Luce Pit and an overland conveyor. The conveyor carries crushed ore a distance of 6 kilometres to the concentrator. Currently the mine and the automatic train and conveyor have a nominal capacity to deliver up to 55 million tonnes per annum of ore to the concentrator.

The company’s existing mining operations in Labrador City consist of four active open pit mining areas (Luce, Humphrey Main/West/Sherwood, Humphrey South and Lorraine South), one existing pit to be reactivated (Spooks), and a new open pit Wabush 3.

The stockpile yard is situated on 1,150 hectares of land and has the capacity to store 4.5 million tonnes of iron ore products. The stockpiling of product is handled by two travelling stackers which are fed by a conveyor system. During shiploading, product is transported from the stockpile yard to ships using two bucketwheel reclaimers. Product is reclaimed from stockpiles and transported by conveyor to the docks where two travelling shiploaders transfer the iron ore product onto the docked freighters. As a result of the other current capacity restrictions, including the dumping system, the overall capacity of the shiploading system is currently 20.9 million tonnes per annum.


Crushing and Grinding
Flow Sheet: Source
Crusher / Mill TypeModelSizePowerQuantity
Gyratory crusher 1
Ball mill 17

Summary:

The Parallel Ore Delivery System (PODS) consists of a gyratory crusher located adjacent to the Luce Pit and an overland conveyor.

The grinding is currently done in four wet mills.

Iron ore concentrate is received from the concentrating operations where it is re-ground in one of 13 ball mills.


Processing

  • Gravity separation
  • Spiral concentrator / separator
  • Flotation
  • Magnetic separation

Flow Sheet: Subscription required

Summary:

Concentrator
IOC employs an entirely mechanical process to separate the ore from the waste rock. In order to extract the iron ore from the associated rock and silica gangue, the crushed ore is ground to a size of approximately one millimetre at which point it is liberated from the associated undesirable minerals. The grinding is currently done in four wet mills.

Ground ore is then concentrated in the spiral plant using gravity spirals to increase the iron content from 38% to approximately 65%. The spirals utilize the forces of gravity, centrifugal action and friction to separate the heavier iron ore grains from the lighter waste rock particles. The ground ore slurry must pass through three successive stages of spiralling (including rougher, cleaner and recleaner) before the concentrate is of sufficient grade and can be conveyed to a stockpile for direct shipping or used as feed for the pelletizing plant. A magnetic separation plant extracts magnetite from the spiral pla ........


Production:

CommodityProductUnits2022202120202019201820172016
Iron Ore Concentrate & Pellets Mt  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required151918
Iron Ore Concentrate kt  ......  Subscription required  ......  Subscription required6,7008,500
Iron Ore Pellets Mt  ......  Subscription required  ......  Subscription required8.510
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Annual production capacity  ......  Subscription required  ......  Subscription required12.5 Mt of iron ore pellets12.5 Mt of iron ore pellets12.5 Mt of iron ore pellets12.5 Mt of iron ore pellets
Annual production capacity  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2021:

CategoryTonnage CommodityGradeRecoverable Metal
Proven Mt Iron 65 % 294 Mt
Probable Mt Iron 65 % 189 Mt
Proven & Probable Mt Iron 65 % 483 Mt
Measured 158 Mt Iron 40.8 %
Indicated 628 Mt Iron 38.6 %
Measured & Indicated 786 Mt Iron 39 %
Inferred 895 Mt Iron 38.3 %
Total Resource 1,681 Mt Iron 38.6 %

Commodity Production Costs:

CommodityUnits202120202019201820172016
Cash costs (sold) Iron Ore USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 52.7 / t 44.1 / t 43.6 / t
Subscription required - Subscription is required.

Financials:

Units2021202020192018201720162015
Capital expenditures (planned) M CAD  ......  Subscription required
Capital expenditures M  ......  Subscription required  ......  Subscription required  ......  Subscription required189  USD 202  USD 75  USD 118  USD
Revenue M  ......  Subscription required  ......  Subscription required  ......  Subscription required1,583  USD 1,867  USD 1,324  USD 1,353  USD
After-tax Income M  ......  Subscription required  ......  Subscription required  ......  Subscription required166  USD 235  USD 64  USD 12  USD
EBITDA M  ......  Subscription required  ......  Subscription required  ......  Subscription required586  USD 770  USD 335  USD 197  USD
Operating Cash Flow M  ......  Subscription required  ......  Subscription required  ......  Subscription required455.4  USD 716  USD
Subscription required - Subscription is required


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 9, 2022
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....................... Subscription required ....................... Subscription required Subscription required May 9, 2022
....................... Subscription required ....................... Subscription required Subscription required May 9, 2022
....................... Subscription required ....................... Subscription required Subscription required May 9, 2022
....................... Subscription required ....................... Subscription required Subscription required May 9, 2022
....................... Subscription required ....................... Subscription required Subscription required Apr 29, 2022
....................... Subscription required ....................... Subscription required Subscription required May 9, 2022
Subscription required - Subscription is required.

Staff:

EmployeesYear
Subscription required 2021
Subscription required 2020
Subscription required 2019
Subscription required 2018
Subscription required 2017
Subscription required 2016
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Report 2016
Annual Report 2015
Other 2015
Other 2012
Subscription required - Subscription is required.

News:

NewsDate
Labrador Iron Ore Royalty Corporation (TSX:LIF) - Rio Tinto Releases IOC Production and Sales Information January 18, 2022

Subscription required - Subscription is required.

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