The Tabakoroni Mineral Resource has been upgraded to 8.1 million tonnes (Mt) at 4.9 grams per tonne (g/t) gold (Au) for a total of 1.26 million ounces (Moz)
The mineralisation at Tabakoroni remains open both along strike and at depth and continued exploration success is expected to expand Mineral Resources and further extend mine life.
Updated Tabakoroni Underground Mineral Resource Estimate
Resolute published the Maiden Underground Resource at Tabakoroni on
Diamond drilling in the second half of 2020 identified a coherent high-grade lens of mineralisation located underneath the South oxide pit at Tabakoroni. The first intersections in this zone were reported in the
The combination of the new high-grade mineralisation underneath the South oxide pit and additional ore grade drill intersections returned underneath the Namakan pit combined to dramatically increase the tonnage in the global resource estimate. This update continues the trend from previous announcements showing the underground Resource at Tabakoroni continues to steadily grow.
Following the Tabakoroni Pre-Feasibility Study which was reported with the
The optimisation was completed at a resource gold price of
Resource estimation and Classification methodology
A structural geology model was completed during 2020 and this model guided the update of the mineralised wireframes which increased the confidence in the estimation. The wireframes were created with a cut-off grade of 10 g/t Au and a minimum downhole thickness of 2m. Four domains have been identified at Tabakoroni. The main domain is the
Another domain was created for the shallow westerly-dipping lodes in the southern and central portion of the deposit. These lodes are dipping at 45-degree and appear to overprint the TMSZ close to the surface. The final domain created was the steeply dipping mineralisation in the north-eastern portion of the deposit, which strikes at 20-degree to the northeast. Gold, sulphide sulphur, organic
Top cutting was required to reduce the influence of outlier values. Variograms were generated for the mineralised one metre composites.
Density was assigned based on weathering codes; 2,190 measurements were taken from diamond hole samples. These measurements suggested a density of 2.72g/m3 for the fresh, 2.38g/m3 for the transitional material and 2.12g/m3 for the oxide material.
The estimation was validated and then classified as Measured, Indicated and Inferred in accordance with the JORC Code (2012) reporting guidelines. The structural interpretation has further increased the confidence in the location and orientation of the mineralisation and therefore the estimation. The default classification for the mineralisation is an Inferred Mineral Resource. Measured Mineral Resources are defined by contiguous zones where the nominal drillhole density is 12.5m by 12.5m, while an Indicated Mineral Resource has been defined by zones where the nominal drillhole density is up to 50m by 50m. The resource has been depleted for mining as of
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