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Canada
BAM Project

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 Location:
242 km NE from Thunder Bay, Ontario, Canada

  Project Contacts:
555 Central Avenue Suite 1
Thunder Bay
Ontario, Canada
P7B 5R5
Phone  ...  Subscription required
Fax807-623-2335
EmailEmail
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  • Overview
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Overview

StagePreliminary Economic Assessment
Mine TypeOpen Pit
Commodities
  • Gold
  • Silver
  • Copper
Mining Method
  • Truck & Shovel / Loader
Processing
  • Gravity separation
  • Inline Leach Reactor (ILR)
  • Agitated tank (VAT) leaching
  • Magnetic separation
  • Carbon in leach (CIL)
  • Elution
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Mine Life6.25 years (as of Jan 1, 2019)
Latest NewsLandore Resources Limited - Mineral Resource Estimate Update with an Independent Technical Report (NI43-101) Bam Gold Deposit Junior Lake Property     April 9, 2020


Owners

Source: p. 7
CompanyInterestOwnership
Landore Resources Ltd. 100 % Indirect
Landore Resources Limited, through its 100 per cent owned subsidiary Landore Resources Canada Inc. (“Landore”), is actively engaged in mineral exploration in Eastern Canada.

Deposit Type

  • Mesothermal


Summary:

The BAM Gold Deposit is located in the south- central area of the Junior Lake property and is interpreted as an Archean-aged mesothermal gold deposit. The deposit consists of gold mineralization that is hosted by sheared and altered rocks of the Grassy Pond Sill and the BAM Sequence. The deposit has been traced by detailed drilling at approximately 50 m centres along a strike length of approximately 2,000 m. Reconnaissance-scale step-out drilling has also intersected gold mineralization in the same host rocks along a strike length of approximately 1,900 m. Based upon the information collected from the detailed scale diamond drill holes, the host rock units strike in an east-southeast direction (average of azimuth 105°) and dip steeply to moderately to the south at 70° to 75°. The gold mineralization is interpreted to reside within a series of tabular shaped zones that are oriented in a roughly en-echelon configuration and are generally parallel to the overall strike of the host rock units. Within the main BAM Sequence four to six mineralized zones are currently recognized, with the estimated true widths of each mineralized zones ranging from 2 m to 50 m.

The gold mineralization occurs as a fine dissemination and also is commonly observed in drill core to exist as visible gold that is hosted by very thin, foliation-parallel quartz-rich veinlets, hosted by highly fissile ultramafic sediments of the BAM Sequence, or by foliated rocks of the Grassy Pond Sill.

A preliminary petrographic study (Payne, 2016) carried out on a number of samples has identified the presence of coarse native gold that is present in association with an unidentified silvery mineral that occur within calcite replacement patches and veinlets.

Small-scale quartz veining is observed to be present within the BAM Sequence and the Grassy Pond Sill on occasion, and the veins can be either barren or be associated with gold-bearing intervals. The observed veins typically measure up to 10 cm in width and can contain an assemblage of either tourmaline (schorl), ankerite, or scheelite (?). The veins are observed to be oriented either sub-parallel or at a high angle to the general foliation of the drill core. Textural evidence suggests that two generations of quartz veins may be present. Given the early stage of the deposit’s history, the detailed paragenetic relationship of the quartz veining to the structure and gold veining is not clearly understood at present.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Given the shallow nature of the mineralization and the initial metallurgical test results, material could be extracted by means of open pit mining methods and processed using conventional milling techniques.

Three-dimensional modelling and block construction have been created with aim of preparing a suitable model for open pit mine design and pit optimization, with a minimum mining width of 2 m. Internal dilution has been considered with a maximum downhole width of 3m (2.0m true width) of sub-grade material (<0.2g/t Au). The minimum block dimensions were selected based on a mining SMU of 6.25mE x 2.5mN x 2.5mRL.

The base input parameters used in the open pit optimization and mine design work completed by Cube are based on information collated after discussions with Landore and review of economic analyses in PEA reports from similar projects in Ontario, Canada. Geotechnical pit design parameters were based on recommendations from the geotechnical assessment work carried out by WSP in 2018.

The selection of a pit shell as the guide to the final pit design was undertaken in consultation with Landore to satisfy the company’s strategic objectives. Shell 21, from Run B, which included Indicated and Inferred Resources, was selected as the target for final pit designs.

The pit shell was comprised of two distinct areas, an east pit design (BAM East Pit) and a west pit design (BAM West Pit) which were individually designed. Due to the scale of the project, pit sizes and mine life, no staging within these two pits was considered appropriate.


Crushing and Grinding


Processing

  • Gravity separation
  • Inline Leach Reactor (ILR)
  • Agitated tank (VAT) leaching
  • Magnetic separation
  • Carbon in leach (CIL)
  • Elution
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Flow Sheet: Subscription required

Summary:

The Phase 1 test work indicated high extraction of gold was achieved with the BAM composite using a combination of grinding, gravity separation and agitation leaching of the gravity tails with cyanide. A conceptual flowsheet of this concept has been prepared for the BAM project.

Crushing
Run of Mine (“ROM”) ore is fed to a hopper at the crushing station. The hopper is enclosed with a stilling shed to reduce dust. A 60 cm X 60 cm static grizzly is included on top of the hopper to limit the size of feed to the primary sizer. A hydraulic rock pick is included to reduce any oversize.

Milling
Ore from the fine ore bin is fed to a wet screen above the ball mill. The wet screen is fitted with one or two decks to separate the feed into a size suitable for feed to the gravity separators and the oversize drops by gravity to the ball mill feed chute.

Gravity Separation
Undersize of the wet screen is distributed to a trio of Knelson concentrator ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Gold Recovery Rate, %  ......  Subscription required
Gold Head Grade, g/t 1.26
Subscription required - Subscription is required.

Projected Production:

CommodityUnitsLOM
Gold oz 488,982
All production numbers are expressed as metal in doré.

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Annual mining capacity  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Plant annual capacity  ......  Subscription required
Daily processing rate  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
* According to 2019 study.
Subscription required - Subscription is required.

Reserves at January 7, 2019:

CategoryTonnage CommodityGradeContained Metal
Indicated 20,198 kt Gold 1.08 g/t 701,000 oz
Inferred 8,628 kt Gold 0.9 g/t 250,000 oz

Commodity Production Costs:

CommodityUnitsAverage
All-in sustaining costs (AISC) Gold USD  ......  Subscription required *
C1 cash costs Gold USD  ......  Subscription required *
C2 total cash costs Gold USD  ......  Subscription required *
C3 fully allocated costs Gold USD  ......  Subscription required *
Assumed price Gold USD  ......  Subscription required *
* According to 2019 study / presentation.
Subscription required - Subscription is required.

Operating Costs:

Units2019
OP mining costs ($/t mined) USD 2.72 *
OP mining costs ($/t milled) USD  ......  Subscription required
Direct operating costs ($/t milled) USD  ......  Subscription required
* According to 2019 study.
Subscription required - Subscription is required.

2019 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 177.3
G&A costs $M USD 19
Total OpEx $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
Operating margin (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 5% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 19, 2019
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
Subscription required - Subscription is required.

News:

NewsDate
Landore Resources Limited - Mineral Resource Estimate Update with an Independent Technical Report (NI43-101) Bam Gold Deposit Junior Lake Property April 9, 2020
Landore Resources Limited - Mineral Resource Estimate Update BAM Gold Deposit Junior Lake Property January 7, 2020
Landore Resources Limited Progress Report - BAM Gold Project, Junior Lake Property October 21, 2019
Landore Resources Limited - Drilling Update, Bam Gold Project Junior Lake Property September 4, 2019
Landore Resources Limited - Technical Report and Preliminary Economic Assesment of the Bam Gold Project Junior Lake Property February 20, 2019
Landore Resources Limited - Mineral Resource Estimate Update on the BAM Gold Deposit, Junior Lake Property January 8, 2019

Aerial view:

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