GTA Resources owns more than a 51% interest in the Northshore property with Balmoral Resources retaining a 48% interest. Since optioning the property in 2011 GTA has completed a total of 103 drill holes delineating the gold mineralization at Northshore. The bulk of the drilling (99 holes) was done on the Afric Zone. Gold mineralization within the Afric Zone is hosted within widespread sections of altered felsic to intermediate intrusive and porphyritic rocks, hosting quartz and quartz carbonate veins, veinlets, stringers and fracture infillings. Multiple occurrences of visible gold were observed in a number of drill holes.
The Afric Zone has been defined over an area of 500 m by 200 m and to a depth of 300 m and consists of gold mineralization of variable grade throughout. The widespread nature of the gold can be demonstrated in a number of drill holes being mineralized throughout its entire length, including hole WB-11-11 which assayed 3.21 g/t over 149.5 m (uncut).
INITIAL RESOURCE - In 2014, GTA reported an initial NI 43-101 mineral resource estimate for the Afric Zone (see associated report “Technical Report on the Mineral Resources of the Northshore Property”, dated June 30, 2014). At a cut-off grade of 0.50 grams gold per tonne the classified mineral resource was estimated to be:
HIGHER GRADE ZONE - Higher grade near-surface mineralization exists in the centre of the Afric Zone and this has been the focus of recent drilling. Previous drilling in this area includes intersections of 12.49 g/t over 33.2 m and 4.35 g/t over 14.6 m, centred on an area of heavier quartz veining and associated mineralization.
In 2015, GTA contracted a study of the higher grade, near surface gold mineralization hosted within the Afric Zone. Results from this study included the outlining of two proposed shallow pits (using a cut-off grade of 1.6 g/t Au) labeled West Pit and East Pit (see GTA news release dated June 17, 2015). The 2016 in-fill drilling focused on the West Pit and the results were very good (see GTA news release dated Aug. 22, 2016).
PRELIMINARY METALLURGY - Preliminary metallurgical test work was conducted on two composited drill core samples to determine potential gold recoveries (see GTA news release Aug. 29, 2016). Recoveries varied from 94.8% to 99.6% over a 24 hour retention time, indicating excellent recoveries can be anticipated using conventional cyanidation.