Labola, Burkina Faso

Advanced gold project with 9km strike covered by 65,000 metres of historical drilling.

The Wuo Land Labola Project (formerly known as Labola) is located in the far southwest of Burkina Faso within the Birimian age Banfora Greenstone Belt. The 3.8Moz Yaoure gold deposit is located within extensions of this belt approximately 450km to the south in Ivory Coast. The 4.5Moz Banfora gold mine, recently renamed Wahgnion and owned by Teranga Gold, is located about 80km to the southwest in an adjacent belt.
Figure 1: Burkina Faso Geology & Gold Projects

Historical Activity

The area has been the site of intense artisanal gold mining activity.

The artisanal mining across 11km to a shallow depth has been largely within weathered primary material (quartz veins within metasediments) although some alluvial gold has been won from the downstream parts of drainages that cut across the mineralisation. The activity has focussed on 2-3 zones that can be seen on Google Earth images, and are semi-continuous over plus 9km of strike.

Figure 2: Google Earth Image of Wuo Land Licence Area

These areas are highlighted in white in the image below for ease of viewing.  Additional small areas of artisanal mining sub-parallel to the three main zones suggest significant additional exploration potential exists outside these zones.

Figure 3: Google Earth Image of Artisanal Workings Highlighted in White

The area has previously been extensively drilled by two companies, Taurus Gold and High River Gold, who each held separate parts of the area with some overlap.  All up, over 65,000m drilling has been conducted on the project as shown on the table and image below.

Labola Exploration Targets
Figure 4: Wuo Land Exploration Targets
Google Earth with Artisanal Workings and Previous Explorer Drill Collars Highlighted
Figure 5: Google Earth with Artisanal Workings and Previous Explorer Drill Collars Highlighted

This work has resulted in each of the previous companies estimating their own mineral resources but the two databases have not been combined up until now.

Moydow has obtained the majority of the historical data (about 90% of the total) and combined this into a single database, which has enabled it to look at the project more holistically.  As some QaQc is still being undertaken and a planned survey of previously mined areas has not been completed as yet, a revised resource estimate reportable under NI 43-101  or JORC guidelines has not yet been completed. 

Based on the previous drilling current and historic data and analysis as well as the potential from extensional and infill drilling across all zones Moydow believes there is potential for an Exploration Target over 1 moz.

The potential quantity and grade of this target is conceptual in nature as there has been insufficient exploration and validation to estimate a Mineral Resource, and it is uncertain if further exploration and validation will result in the estimation of a mineral resource.

Moydow continues to review the data used by previous explorers to support the above target.

The artisanal workings appear to have focused on either a single quartz vein, sheeted quartz veins or stockwork quartz veins.

Google Earth showing Sheeted Quartz Veins Mined by Artisanal Miners
Figure 6: Google Earth showing Sheeted Quartz Veins Mined by Artisanal Miners
Multiple Zones of Artisanal Gold Workings from the Ground
Figure 7: Multiple Zones of Artisanal Gold Workings from the Ground

A similar style of mineralisation is interpreted from the drilling data, where either single high-grade quartz veins or wider zones of sheeted to stockwork quartz veining are interpreted.  Some strong sulphide alteration (mainly arsenopyrite and pyrite) is noted in dump material from the artisanal mining and in the drill core surrounding quartz veins.  This also appears to host gold mineralisation. 

Pyrite and Arsenopyrite in Metasediment Host Rock from Artisanal Mining Dumps
Figure 8: Pyrite and Arsenopyrite in Metasediment Host Rock from Artisanal Mining Dumps
Pyrite and Arsenopyrite in Metasediment Host Rock from Artisanal Mining Dumps
Figure 9: Pyrite and Arsenopyrite in Metasediment Host Rock from Artisanal Mining Dumps

Technical Data

Interpretation of the drilling data shows a series of “pods” of gold mineralisation ranging from a few hundred metres to almost 2km in strike as shown in the map below.  Most of these pods have not been closed off at depth, with the deepest drilling intersecting mineralisation at around 250m below surface.  The mineralisation appears to occur within three separate trends or zones that have been termed West, Central and East zones here.  None of these are closed off along strike.

Figure 8- Exploratory Drill Sites showing Gold Mineralisation
Figure 10: Exploratory Drill Sites showing Gold Mineralisation

While some areas appear to be relatively barren, this may be partly due to the drilling density.  The four cross sections below show the style of mineralisation encountered in mineralised pods in each of these zones.

Cross Section of the Central Zone #1
Figure 11: Cross Section of the Central Zone #1
Cross Section of the Central Zone #2
Figure 12: Cross Section of the Central Zone #2
Cross Section of the West Zone
Figure 13: Cross Section of the West Zone
Cross Section of the East Zone
Figure 14: Cross Section of the East Zone

Moydow has established and is progressing a roadmap to a mineral resource estimate.

Future work will initially focus on obtaining adequate QaQc data and surface surveys of drill-holes and workings as well as geological interpretation with a view to enabling an NI 43-101 or JORC resource to be estimated. Moydow is following a considered data driven approach including new methods of analysis. The interpretation programme will be followed by drilling to confirm and expand the resource.

Moydow considers the exploration potential to be high with the following targets identified:

  • Depth continuations
  • High grade shoots
  • Along strike in each zone
  • Sub-parallel zones
  • Geophysical targets
  • Areas of structural complexity including linking structures, zones of dilation and favourable host rocks.
Figure 13: Labola Exploration Targets
Figure 15: Wuo Land Exploration Targets