The Cisneros project is located within the late Cretaceous (approx. 88.0 Ma) Antioquia Batholith, a significant intrusive body within the Central Cordillera belt of Colombia. It is structurally deformed, granodioritic-tonalitic rocks and gold mineralization typically occurs within sulphide-rich (pyrite, chalcopyrite) quartz veins and breccias that are controlled by significant primary and secondary regional faulting occurring on the property. The Cisneros area has an history of artisanal gold production and over 60 artisanal gold mines have been identified on the property.
Antioquia Gold has been exploring the Cisneros project since 2007 and has made nine individual, separate gold discoveries; two of which, the Guayabito and Guaico deposits, will now be taken into production.
The Guayabito deposit is a multi-zone, en-echelon style deposit with individual zones achieving strike lengths of 180m, depths of 300m and localized true thickness up to 5.0m. Significant drill intercepts include 4.0m @ 14.7 g/t Au in hole GYB11-052 and 5.1m @ 9.3 g/t Au in hole PC10-026.
The Guaico deposit is similar to Guayabito as it is a multi-zone, en-echelon style deposit in which zones identified to date have strike lengths up to 200m, have been identified to a sub-surface depth of 300m and localized true thickness within individual zones is up to 3.0m. Significant drill intercepts include 6.9m @ 15.6 g/t Au in hole PC09-020; 3.5m @ 19.6 g/t Au in hole GCO11-009 and 2.0m @ 34.1 g/t Au in hole GCO11-007.
Drilling results include 4.4m @ 16.6 g/t Au on the Guaico structure, 11.2m @ 5.4 g/t Au on the Nus structure and 37.2m @ 4.5 g/t Au on the Guayabito structure. The Guaico structure has been identified along 200m strike length and 200m vertical depth below the Guaico artisanal mine and is open at depth and to north, with intercepts up to 2.3m @ 22.72 g/t Au. The Nus structure has been identified along 950m strike length and 100m vertical depth and is open at depth and along strike to the east and west. This structure exhibits the presence of silver and copper along with gold.