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Burkina Faso
Balogo Mine (Youga Operation)

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 Location:
108 km S from Ougadougou, Burkina Faso

  Regional Office:
Secteur 54 – Parcelle 12 & 13, Lot 30, Rue 15-564 Porte 71, 05 BP 6282, Ouagadougoy 05
Burkina Faso
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Fleet
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  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start...
Avesoro Holdings Ltd., a private equity firm, acquired the mine in December 2018. Mine operations data has not been publicly available since then.


Owners

Source: p. 4
CompanyInterestOwnership
Government of Burkina Faso 10 % Direct
Avesoro Holdings Ltd 90 % Indirect
Netiana Mining Company 90 % Direct

Contractors

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Deposit Type

  • Mesothermal


Summary:

The project area is prospective for mesozonal “lode gold” deposits which typically have a structural component and display a strong relationship to regional scale shear zones. Similar deposits can be found in other areas of the late Proterozoic Birimian terranes of West Africa. Gold mineralisation is typically associated with networks of quartz mineralisation or associated with disseminated sulphides within strongly deformed alteration zones.

At Balogo there have been at least three distinct mineralisation styles recognised. These include:

1. High-grade gold mineralisation (+/- Cu, Bi, Te) hosted in a sequence of diorites (as defined by drilling at the Netiana deposit over a length of approximately 500 m to a depth of approximately 250m). Mineralisation is restricted to a single dioritic unit which has a structurally-controlled hanging-wall contact with a distinct unit of chloritic metasediments. High gold grades are typically associated with quartz veining within the dioritic rocks. Figure 10 shows diamond drill core with this style of lost lithology.

2. Massive magnetite associated copper-gold mineralisation. This style of mineralisation outcrops near Cobra Hill and occurs as generally massive magnetite (+/- copper) gold mineralisation. Mineralisation is probably shear controlled and generally is hosted in metasediments immediately above the structural contact between metasediments and dioritic intrusives.

3. Copper-gold mineralis ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The proposed method of mining for Netiana is a conventional open pit method using drilling and blasting, loading with excavators, and hauling with articulated dump trucks (ADT). The ore will be extracted by hydraulic excavators (30 to 40t) to maximise selectivity where the ore body is narrow, and the waste will be loaded by slightly larger hydraulic excavators (60 to 80t) to allow for higher productivity.

There is potential for additional Mineral Resources to be exploited by open pit mining methods, although this is dependent on improved project economics and/or reclassification of the Inferred Mineral Resources through additional drilling. Consideration of underground mining has not been necessary at this stage of the Project, although if the minerals were found to continue at depths beyond economic open pit limits then this could be considered in the future.

The evaluation of Netiana assumes that the ore will be transported to the processing facility at Youga. The optimal production rate is constrained by the capacity limit of the plant at Youga. Consideration also has to be given to the maximum vertical advance rate as the pit limit at surface is relatively small in area (250 m x 300 m) and the pit extends to a depth of 100 m below topographic surface. The mining rate was therefore set at between 300 and 680 Kt/month.


Crushing and Grinding


Processing

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Summary:

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Combined production numbers are reported under Youga Operation


Reserves at December 31, 2018:
Mineral Reserve Cut-off grade: 1.1 g/t Au.
Mineral Resource Cut-off grade: 0.6 g/t Au.

CategoryOreTypeTonnage CommodityGradeContained Metal
Proven In-Situ (OP) 0.06 Mt Gold 5.56 g/t 10.5 koz
Probable Stockpiles 1.41 Mt Gold 0.72 g/t 32.8 koz
Probable In-Situ (OP) 0.14 Mt Gold 6.35 g/t 28.3 koz
Proven & Probable Stockpiles 1.41 Mt Gold 0.72 g/t 32.8 koz
Proven & Probable In-Situ (OP) 0.2 Mt Gold 6.11 g/t 38.8 koz
Measured In-Situ (OP) 0.03 Mt Gold 7.63 g/t 7.5 koz
Indicated In-Situ (OP) 0.13 Mt Gold 6.76 g/t 29.2 koz
Measured & Indicated In-Situ (OP) 0.17 Mt Gold 6.92 g/t 36.8 koz
Inferred In-Situ (OP) Mt Gold 1.8 g/t 1 koz



Heavy Mobile Equipment as of July 31, 2018:
HME TypeModelQuantity
Dozer (crawler) ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Excavator ....................... Subscription required ....................... Subscription required
Excavator ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Loader (FEL) ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 19, 2022
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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
Press Release 2018
Corporate Presentation 2017
Corporate Presentation 2017
Press Release 2017
Technical Report 2017
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