North of the Birthday Gift Mine area
Drilling has demonstrated excellent potential for Birthday Gift style mineralisation with a number of deposits identified within the project area. North of the Birthday Gift Mine area exists Main Lode, Burbanks North, Pipeline, Fanjaw, Trumpeter and Galaxias.
Mineralisation is related to the dominate structure in the area, the Burbanks Shear Zone and is found to be closely associated with diorite units.
In 2013 resource modelling revealed continuous mineralisation extending over 1 kilometre. Additional drilling is hoped to confirm and delineate a number of shallow open-pit-able gold resources in the area.
At Burbanks North previously drilled aircore (AC) and reverse circulation (RC) drilling has identified a JORC 2004 Inferred Mineral Resource of 77,000t @ 2.3 g/t Au for 5,600oz. The deep oxidation profile at Burbanks North suggests that the majority of this material is strongly weathered and as a result, have lower associated mining costs.
South of the Birthday Gift Mine
South of the Birthday Gift Mine area lies the Salmon, Salmon South, Grand Junction and Fylamona deposits. Best RC intersections include 4m @ 5.3g/t Au, 6m @ 5.1 and 4m @ 10.9 g/t Au (Salmon and Salmon South); 2m @ 5.8 g/t Au (Grand Junction) and 9m @ 3.0 g/t Au and 3m @ 3.9g/t Au (Fylamona).
The majority of the drilling is shallow (less than 50m depth) revealing the mineralisation lies close to surface. Barra aims to further define these deposits so that a mineral resource can be estimated.
At Kangaroo Hills reconnaissance mapping and rock-chip sampling established that the historical mining activity is associated with the Burbanks Shear Zone and a parallel shear 200m to the west, with gold mineralisation also associated with intrusive diorite, the same as the Birthday Gift Mine.
Historical production (1897-1975) from the Kangaroo Hills prospect area has seen approximately 6,300t @ 24.2g/t Au for 4,900oz won (Source: DMP, Minedex). No modern exploration has occurred until Barra commenced exploration in 2011.
Rock chip sampling of the old workings in 2011 totalled 47 samples, 12 of which returned grades better than 1.0 g/t Au; best results include 99.9, 24.4 and 22.4 g/t gold confirming the high grade production of the area.
A first pass aircore drill program comprising 68 holes returned significant gold in 14 holes including 3m @ 22.9 g/t Au and 2m @ 12.8 g/t Au.
RC drilling to follow-up the encouraging aircore drilling is planned.