Canada-based gold exploration and development company Nexus Gold Corp. has completed its phase 1 diamond drill programme, reporting higher gold assays.Burkina Faso - A 2000m phase two programme is now underway to test down the dip and strike extensions of gold mineralisation identified by the company in its phase 1 programme at the 178 km2 Niangouela exploration permit located 85 km north of Ouagadougou in Burkina Faso.
The programme will also test additional targets identified through surface mapping and prospecting. Results will be released once received, reviewed and verified.
The first phase diamond drill programme was designed to test ground defined by anomalous rock samples collected from underground artisanal workings and anomalous rotary air blast (RAB) drilling completed by Nexus Gold Corp. in December 2016.
This initial programme successfully intersected gold mineralization in eight of the first nine holes drilled on the concession. The mineralisation was contained in a silicified shear zone occurring in the host granite. Quartz veining is associated with the shear zone.
First assay results
The initial assays from the first nine diamond drill holes at Niangouela, as announced on 7 March 2017, have undergone additional analysis. The Nexus Gold Corp. applied metallic screen analysis and bulk leach extractable gold (BLEG) analysis, in addition to gravimetric fire analysis.
This additional analysis has resulted in the change in values of several intercepts originally released on 7 March, including hole NGL-17-DD-008 which saw an increase from 8.50 g/t gold over .62 m, to 11.7 g/t gold over .62 m, and from 120 g/t gold over 1 m, to 132 g/t gold over 1 m.
In addition, hole NGL-17-DD-009 increased from 2.61 g/t gold over 4 m to 2.95 g/t gold over 4 m. This hole also gained an additional 1 m of 5.00 g/t gold.
“The presence of free gold and the results of the BLEG and metallic screen analysis has demonstrated the need for ensuring that the maximum amount of material is being analysed,” says Nexus Gold Corp. senior geologist Warren Robb.
“The company will be employing the appropriate method to gain the most representative gold value as is possible,” continued Robb.
The sampled core was delivered to the independent Actlabs laboratory in Ouagadougou where the samples underwent analysis by fire assay with an atomic absorption finish.
If samples returned values greater than 10 ppm gold the sample was re-analysed by gravimetric fire assay. Samples with identified visible gold were analysed using a fire assay metallic screen analysis.
Nexus Gold Corp. employs a QA/QC program of inserting standards, blanks and duplicates into the samples stream as a supplement to the internal checks employed by Actlabs.
The drill programme tested the shear zone for over 200 m along strike and intercepted the zone to depths of 105 m below surface. The shear zone remains opens along strike and to depth.