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Scott Lake Project

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Mine TypeUnderground
StagePreliminary Economic Assessment
  • Copper
  • Zinc
  • Silver
  • Gold
Mining Method
  • Longitudinal stoping
Mine Life... Lock
SnapshotThe Scott Project bears important mineral resources and on which a positive Preliminary Economic Assessment was completed in December 2017.


Yorbeau Resources Inc. 100 % Direct
The property is 100% owned by Yorbeau, although parts of it are subject to certain cash payments upon reaching commercial production. It covers about 18 kilometres of the same favourable felsic rocks (Waconichi Formation) that hosts the past-producing high grade Lemoine mine located about 40 kilometres to the southeast (now part of Yorbeau's Lemoine Property).

Deposit type

  • VMS


The Project consists of a number of mineralized zones that have all the characteristics of volcanogenic massive sulphide (VMS) mineralization. VMS-style mineralization at Scott Lake comprises distinct stratabound massive sulphide lenses located mainly along or close to rhyolite-andesite/basalt contacts. In addition to the massive sulphides, separate zones of VMS style disseminated and stringer sulphides, which may or may not be connected with massive sulphide lenses, have been found over a strike length of at least two kilometres.

The Property is located on the north limb of the Chibougamau Anticline. From south to north, the Property stratigraphy consists of a monoclinal sequence extending from the upper units of the Lake Doré Complex and the Chibougamau Pluton to basalts of the Gilman Formation, with remnants of felsic rocks of the Waconichi Formation caught in between. All units are metamorphosed to the greenschist facies. The Property consists of a number of mineralized zones that have all the features of VMS mineralization. VMS style mineralization at Scott Lake comprises distinct stratabound massive sulphide zones located mainly along or close to rhyolite-andesite/basalt contacts and adjacent stringer sulphide zones within altered rhyolite units.

At Scott Lake, the Waconichi Formation is represented at surface by a 600 m thick dome of quartz-phyric rhyolite that pinches out quickly to the west and seems to disappear more gradually to the east. This original complex flow distribution may have been partly enhanced by
later deformation and the intrusion of the Chibougamau Pluton, however, there is no evidence of strong deformation anywhere on the Property, such as regional foliation or fold axes. An important feature of the property geology is that
there is significantly more rhyolite at depth than indicated by the surface geology. In fact, while rhyolite at surface completely pinches out around section 200W, it can be traced by drilling to the west for at least an additional 1.8 km at depths ranging from 100 m to at least 700 m.

This unit has a highly variable thickness ranging up to 250 m and is characterized chemically by silica in the range of low 60% and titanium content in the range of 0.7% TiO2 to 0.8% TiO2. Except for this dacite unit, the Gilman Formation consists essentially of pillowed to massive basalts and andesites cut by numerous (synvolcanic?) mafic sills. Thin rhyolitic units (local domes?) and sulphiderich cherty horizons have also been cut by drilling within the lower 200 m to 300 m of the Gilman Formation.



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Mining Methods


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Crushers and Mills

Milling equipment has not been reported.



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Copper Metal in concentrate M lbs 15
Copper Concentrate kt 28
Zinc Metal in concentrate M lbs 75
Zinc Concentrate kt 72
Silver Metal in concentrate oz 395,835

Operational metrics

Annual processing capacity 2,500 t *
Ore tonnes mined, LOM 12,024,000 t *
* According to 2017 study.

Production Costs

Assumed price Zinc USD 1.3 / lb *  
Assumed price Copper USD 3.5 / lb *  
Assumed price Silver USD 23 / oz *  
Assumed price Gold USD 1,500 / oz *  
* According to 2017 study / presentation.

Operating Costs

UG mining costs ($/t mined) USD 54.1 *  
Processing costs ($/t milled) USD  ....  Subscribe
Total operating costs ($/t milled) USD  ....  Subscribe
* According to 2017 study.

Project Costs

MetricsUnitsLOM Total
Pre-Production capital costs $M USD  ......  Subscribe
Sustaining CapEx $M USD  ......  Subscribe
UG OpEx $M USD  ......  Subscribe
Processing OpEx $M USD 60
Pre-tax Cash Flow (LOM) $M USD  ......  Subscribe
Pre-tax NPV @ 8% $M USD  ......  Subscribe
Pre-tax IRR, %  ......  Subscribe
Pre-tax payback period, years  ......  Subscribe

Heavy Mobile Equipment

Fleet data has not been reported.

Aerial view:


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