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Canada
Murray Brook Project

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 Location:
58 km W from Bathurst, New Brunswick, Canada

  Project Contacts:
101 - 2148 West 38th Avenue
Vancouver
British Columbia, Canada
V6M 1R9
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WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
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  • Filings & News

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Overview

StagePreliminary Economic Assessment
Mine TypeOpen Pit
Commodities
  • Zinc
  • Lead
  • Copper
  • Silver
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life10 years (as of Jan 1, 2013)
The road accessible Murray Brook Deposit represents one of the largest undeveloped VMS polymetallic projects in the world-renown Bathurst Mining Camp, New Brunswick.


Owners

Source: p. 1
CompanyInterestOwnership
MetalQuest Mining Inc. 28.5 % Direct
Votorantim Metals Canada Inc. 71.5 % Direct
MetalQuest Mining Inc. (formerly El Nino Ventures Inc.) is a mineral exploration company, who for the last 13 years working with Votorantim Metals Canada Inc. (“Votorantim”), has focused on Exploration for Zinc, Lead, Copper and Silver, and gold in New Brunswick, Canada.

Management is currently reviewing its options in regard to its 28.5% minority interest (as at December 28, 2022) in Murray Brook joint venture with Votorantim. One of MetalQuest’s strategic plans is to sell its interest in the Murray Brook Zn-Pb Project.

Contractors

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Deposit Type

  • VMS


Summary:

The Murray Brook sulphide mineralization is classified as a volcanogenic massive sulphide deposit (P., W., C., Shanks III, et al) 2009. This type of deposit is characterized by massive to semi-massive iron sulphide minerals including variable amounts of base metals and precious metals. This type of deposit is well studied and documented. Genetically the deposits are coeval with felsic volcanic centres, and are generally lens-like, parallel to the stratigraphy, with a discordant hydrothermal “pipe” at the stratigraphic base of the sulphide accumulation.

As is well illustrated by the discovery of the Murray Brook deposit, heavy mineral and soil geochemical surveys are an effective search tools. Geophysical surveys including magnetic, electromagnetic, induced polarization/ resistivity, and gravity surveys are also effective exploration tools for concealed deposits.

The Murray Brook deposit is hosted by sedimentary rocks of the Charlotte Brook Member in the lower part of the Mount Brittain Formation. The upper felsic volcanic member of the Mount Brittain Formation is host to the Restigouche deposit, some 10 km to the west. The Mount Brittain Formation is believed to be equivalent of the Spruce Lake Formation which hosts the Caribou Mine, ten kilometres to the east.

The sulphides are massive to semi-massive, locally banded and pyrite-rich. The deposit has a 1 to 3 m wide halo composed of chloritized sedimentary rocks containing disseminated pyrite ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The Murray Brook deposit is relatively shallow in depth and lends itself to conventional open pit mining methods. A single open pit will be developed that will have a maximum depth of approximately 340 m from the highest point (550 masl) to lowest point (212 masl).

The mine production schedule consists of one pre production year for pre-stripping and then ten years of actual mine production.

The target milling rate is approximately 2,000,000 tonnes per year, or approximately 6,000 t/day. Daily mining rates of mineralized material and waste combined will range from 12,000 t/d to 32,000 t/d and average about 27,000 t/day.

The open pit will require the excavation of four different materials:
• Overburden (placed into an overburden stockpile);
• Waste Rock (placed into a waste rock dump);
• Oxide Waste (mineralized material not defined as processable and placed into a separate stockpile);
• Sulphide Mill Feed (processed through the plant);
• The development of the mine production schedule entailed several sequential steps. These are:
- Run pit optimizations to select the optimal pit shell;
- Design an operational pit (with ramps and benches) based on the optimal shell;
- Develop internal pit phases (push-backs) to smooth the annual production tonnages;
- Develop a life-of-mine mining schedule; o Develop a life-of-mine processing schedule.

PIT DESIGN PARAMETERS
Haul Road ........


Crushing and Grinding
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Processing

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Summary:

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Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Zinc Metal in concentrate M lbs 91914
Zinc Concentrate kt 770
Lead Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required
Lead Concentrate kt  ......  Subscription required
Copper Metal in concentrate M lbs  ......  Subscription required  ......  Subscription required
Copper Concentrate kt  ......  Subscription required
Silver Metal in concentrate M oz  ......  Subscription required  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio 4.3 *
Daily mining rate 27,000 t *
Daily milling capacity 6,000 t *
Waste tonnes, LOM 81,885,152 t *
Ore tonnes mined, LOM 18,947,674 t *
Total tonnes mined, LOM 100,832,826 t *
Tonnes milled, LOM 18,947,600 t *
Annual milling capacity 2,000,000 t *
* According to 2013 study.

Reserves at June 5, 2013:

CategoryTonnage CommodityGrade
Measured 12,075,000 t Zinc 2.75 %
Measured 12,075,000 t Lead 0.96 %
Measured 12,075,000 t Copper 0.37 %
Measured 12,075,000 t Silver 38.8 g/t
Measured 12,075,000 t Gold 0.47 g/t
Indicated 6,635,000 t Zinc 1.98 %
Indicated 6,635,000 t Lead 0.78 %
Indicated 6,635,000 t Copper 0.5 %
Indicated 6,635,000 t Silver 36.1 g/t
Indicated 6,635,000 t Gold 0.66 g/t
Measured & Indicated 18,710,000 t Zinc 2.48 %
Measured & Indicated 18,710,000 t Lead 0.9 %
Measured & Indicated 18,710,000 t Copper 0.42 %
Measured & Indicated 18,710,000 t Silver 37.9 g/t
Measured & Indicated 18,710,000 t Gold 0.53 g/t
Inferred 240,000 t Zinc 1.18 %
Inferred 240,000 t Lead 0.41 %
Inferred 240,000 t Copper 1.46 %
Inferred 240,000 t Silver 24.7 g/t
Inferred 240,000 t Gold 0.39 g/t

Commodity Production Costs:

CommodityUnits
Assumed price Lead USD 1 / lb *  USD
Assumed price Zinc USD 0.94 / lb *  USD
Assumed price Copper USD 3.7 / lb *  USD
Assumed price Silver USD 30.1 / oz *  USD
Assumed price Gold USD 1,540 / oz *  USD
* According to 2013 study / presentation.
Subscription required - Subscription is required.

2013 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M CAD  ......  Subscription required
Sustaining CapEx $M CAD  ......  Subscription required
Total CapEx $M CAD  ......  Subscription required
OP OpEx $M CAD  ......  Subscription required
Processing OpEx $M CAD 270
G&A costs $M CAD 25
Total OpEx $M CAD  ......  Subscription required
Income Taxes $M CAD  ......  Subscription required
Total Taxes $M CAD  ......  Subscription required
Royalty payments $M CAD  ......  Subscription required
Net revenue (LOM) $M CAD  ......  Subscription required
Operating margin (LOM) $M CAD  ......  Subscription required
EBITDA (LOM) $M CAD  ......  Subscription required
Net Income (LOM) $M CAD  ......  Subscription required
After-tax Cash Flow (LOM) $M CAD  ......  Subscription required
After-tax NPV @ 0% $M CAD  ......  Subscription required
After-tax NPV @ 5% $M CAD  ......  Subscription required
After-tax NPV @ 7% $M CAD  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.


Proposed Heavy Mobile Equipment as of June 4, 2013:
HME TypeModelSizeQuantity
ANFO Loader 12 t ....................... Subscription required
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Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 8, 2023
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2013

Corporate Filings & Presentations:

DocumentYear
Management Discussion & Analysis 2022
Press Release 2022
Press Release 2014
Preliminary Economic Assessment 2013
Technical Report 2011
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