Burkina Faso

Boungou Mine

Click for more information

Categories

Overview

Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
Mine Life2031
ShapshotThe Boungou mine is a high-grade open pit operation with significant exploration potential in the largely under-explored surrounding area.

Owners

SourceSource
CompanyInterestOwnership
Government of Burkina Faso 10 % Indirect
Lilium Capital 90 % Indirect
SEMAFO Boungou S.A. (operator) 100 % Direct
The Boungou License is held by Semafo Boungou SA. Endeavour, indirectly through its subsidiary Semafo (Barbados) Ltd., holds a 90% stake in Semafo Boungou SA. The remaining 10% interest in Semafo Boungou SA is held by the State of Burkina Faso.

On June 30, 2023, Endeavour Mining plc closed the sale of its 90% interests in its Boungou non-core mine in Burkina Faso to Lilium Mining, a subsidiary of Lilium Capital.

Contractors

Lock

- subscription is required.

Deposit type

  • Vein / narrow vein

Summary:

The Tawori exploration permit (initially the Boungou exploration permit), which contains the Boungou gold deposit, lies within the Diapaga greenstone belt, a northeast-southwest orientated belt that extends over 250 km in length and over 50 km in width. Endeavour holds four contiguous permits, collectively known as the Tapoa permit group, covering approximately 70 km in strike length along the Diapaga belt.

The stratigraphy at Boungou is relatively simple and quite consistent from hole to hole. The stratigraphy consists of two volcanic flows separated by a volcaniclastic unit. The footwall flow generally progresses upwards from a massive basalt flow to pillowed flows followed by flow breccia and volcaniclastics. The hangingwall is characterized by a medium grained volcanic flow (or sill). All these units are intruded by diorite and/or granodiorite sills, possibly originating from the felsic intrusion located immediately west of the deposit. Late dolerite dykes are also present and appear to be sub-vertical and strike northwest. The Boungou Shear Zone, which hosts the main gold mineralization at Boungou, is located at the contact between the footwall and hangingwall volcanic units, where the volcanic flow top breccias have formed and the volcaniclastics deposited. The contact zone is thought to have served as an area of weakness, focusing the deformation. While the volcaniclastic units are not always present (although the intensity of the alteration can make it difficult to identify), the flow top breccias are interpreted to be ubiquitous across the deposit area.

The Boungou gold deposit can be described as a West African shear zone hosted greenstone gold deposit. The main mineralized lode is interpreted as a flat-lying anticlinal shear that outcrops in the southeast and plunges gently to the northwest. The mineralization has a strike length of approximately 2 km, striking towards a bearing of 315° and an across-strike length of approximately 1 km (towards 45°). The mineralization is gently folded with the fold axis oriented along strike and the limbs dipping gently at approximately 15°.

Gold mineralization is associated with biotite and silica-sericite alteration, along with disseminated sulphides, such as pyrrhotite, pyrite and minor arsenopyrite and chalcopyrite, with occasional free gold. The mineralization is structurally controlled and is hosted primarily within a large shear zone and its associated alteration. Arsenopyrite is almost invariably associated with the presence of gold in assayed samples. The percent arsenopyrite logged can be used as an initial identification of the mineralized lode. Although not common, visible gold has been observed in core in some drill holes.

Reserves

Lock

- subscription is required.

Mining Methods

Lock

- subscription is required.

Comminution

Crushers and Mills

Lock

- subscription is required.

Processing

Lock

- subscription is required.

Production

CommodityUnits202320222021202020192018Avg. Annual (Projected)LOM (Projected)
Gold koz 000000000000000000641481,181
All production numbers are expressed as metal in doré. ^ Guidance / Forecast.

Operational metrics

Metrics20222021202020192018
Daily ore mining rate 000000000000
Daily processing capacity 00000000000000004,000 t
Stripping / waste ratio 000000000007.1
Ore tonnes mined 00000000000000568.3 kt
Waste 00000000000000000004,035 kt
Total tonnes mined 00000000000000
Tonnes processed 0000000000000000368.1 kt
Daily mining capacity 00004,000 t of ore
Annual mining capacity 0001.34 Mt of ore

Production Costs

CommodityUnits202320222021202020192018
Total cash costs (sold) Gold USD 000 380 / oz   403 / oz  
Total cash costs (sold) Gold USD 00000000 0000000
All-in sustaining costs (sold) Gold USD 000 497 / oz   596 / oz  
All-in sustaining costs (sold) Gold USD 00000000 00000000 0000000
^ Guidance / Forecast.
Net of By-Product.

Operating Costs

Currency20222021202020192018
OP mining costs ($/t mined) USD 3.26  2.52  4.78  
Processing costs ($/t milled) USD  ....  Subscribe  ....  Subscribe  ....  Subscribe
G&A ($/t milled) USD  ....  Subscribe  ....  Subscribe  ....  Subscribe
Total operating costs ($/t milled) USD  ....  Subscribe  ....  Subscribe

Financials

Units202320222021202020192018
Capital expenditures (planned) M USD  ....  Subscribe
Sustaining costs M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 10.5  
Capital expenditures M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe
Revenue M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 67  
Operating Income M USD  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe 22.8  

Heavy Mobile Equipment

Lock

- subscription is required.

Personnel

Mine Management

Source Source
Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jul 24, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 24, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 24, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 24, 2023
....................... Subscription required ....................... Subscription required Subscription required Jul 24, 2023

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2022
Subscription required 2021
Subscription required 2020

Aerial view:

Lock

- subscription is required.