Canada

Northern Dancer Project

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Categories

Overview

Mine TypeOpen Pit
StatusInactive / Suspended
Commodities
  • Molybdenum
  • Tungsten
Mining Method
  • Truck & Shovel / Loader
SnapshotIn the fourth quarter 2015, Largo ceased all activities at Northern Dancer and placed it on care and maintenance.

Management is not conducting any further work at this time on the Northern Dancer property, as the majority of the Company’s efforts are focused on the Maracás Menchen Mine. During 2022, the Company addressed the outstanding Inspector’s Direction for reclamation work with respect to historic drill roads and drill sites on the property.

Owners

SourceSource
CompanyInterestOwnership
Largo Inc. 100 % Indirect
Northern Dancer project is 100% Owned by Largo Resources Ltd. through its wholly owned subsidiary Largo Resources (Yukon) Ltd.

Deposit type

  • Porphyry
  • Vein / narrow vein
  • Hydrothermal

Summary:

The Northern Dancer deposit is a porphyry tungsten-molybdenum system (e.g., Kirkham and Sinclair, 1984; Sinclair, 1995). Deposits of this type comprise large tonnage, generally low grade, hydrothermal mineralization related to igneous intrusions emplaced at high levels in the earth’s crust. The mineralization may be confined to pluton-hosted disseminations, veins and veinlets in stockworks, vein sets, and breccias and occur in skarn, replacement, vein and disseminated deposits peripheral to plutons. Deposits of this type are amongst the world’s largest, including copper, molybdenum, uranium, tungsten, gold, silver, and tin. Porphyry molybdenum deposits are common in the northern Cordillera, with examples including: Quartz Hill, Endako, Red Mountain, Adanac, Trout Lake, Henderson, and Climax.

Previous work in the vicinity of the claims has outlined an extensive, multi-episode vein system that is enriched in several metals, most notably tungsten and molybdenum (Noble et al., 1984; Wengzynowski, 2006). Readers interested in a more detailed description of the vein system are referred to Chapter 4 of Brand (2008). The system is centred on a porphyry dyke complex and appears to form an approximately 3 km by 1 km kidney-shaped zone that is elongated along a north-north-easterly axis.

Most of the mineralization (approximately 95%) within the system occurs in veins and fractures. In addition, minor molybdenite is disseminated in the porphyry complex, some tungsten minerals are disseminated in skarn horizons and local disseminations of scheelite and molybdenite are found in the haloes of sheeted veins. Although veins cross-cut all units and most are apparently related to emplacement of the porphyry dyke complex, it is possible that some veining and skarnification may predate that event.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

CommodityProductUnitsAvg. Annual
WO3 Crystals mtu 761,000

Production Costs

CommodityUnitsEstimated
Assumed price WO3 USD 275 / mtu *  USD
Assumed price Molybdenum USD 16 / lb *  USD
* According to 2011 study / presentation.

Project Costs

MetricsUnitsLOM Total
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Pre-tax NPV @ 8% $M CAD  ......  Subscribe
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Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 29, 2024

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