Located in the Afar region of Ethiopia, the 299 sq km Blackrock gold project was formerly owned by Stratex and is now owned by Thani Stratex Resources Limited, a private vehicle in which Stratex owns a 32.4% interest. Please click here for further details.
Five separate zones of low-sulphidation mineralisation were identified by Stratex - Calcite, Airstrip, Saba, Black Water and Magdala - each containing multiple quartz veins with grades of up to 60.4 g/t Au. At the Black Water Zone, mapping has identified five substantial NW-SE-striking vein systems - Stanley, Nesbitt, Oasis, Theodore and Baker.
Phase 1 drilling on the Black Water Zone returned multiple wide intersections of low-grade mineralisation, although encouraging higher grades up to 15.97 g/t over 0.2 m were observed in zones of hydrothermal breccia. The presence of boiling zone textures and the observation of higher gold grades associated with injection breccias, provides support for the possibility of ore shoots at depth.
Phase 2 diamond drilling across seven key structures, within the Calcite, Airstrip and Black Water zones, returned numerous anomalous gold intersections from all structures. Drilling showed considerable variations in geology, especially the relationship of basalts to graben-filling sediments, and has considerably assisted understanding of how the rift developed.
Stratex drill-tested c.5,200 m of veining with at least 25 km of strike of mineralized zones yet to be tested. ThaniStratex is now managing the programme.