Fraser Range Targets in Newly Discovered Nickel Province
The 100 per cent-owned Fraser Range Project consists of three granted exploration licenses (EL28/2209, EL28/2210 and EL63/1528) covering a combined area of 271km2 in the Fraser Range, Western Australia. The Fraser Range region remains an area of significant base metals exploration and boasts world-class discoveries including the Nova-Bollinger nickel-copper massive sulphide deposits of Independence Group (ASX: IGO), located approximately 20km east of the Fraser Range Project.
The Fraser Range Project holds potential for base metals with the presence of a prospective magnetic unit which extends from tenements held by Independence and Enterprise Metals Limited (Figure 1). The magnetic feature extends to the south-west and contains the Yardilla nickel prospect on the adjoining tenement. Newmont Mining’s historic Gemco nickel also sits along strike on this magnetic feature.
Since acquiring the Fraser Range Project, Longford has completed 1,000 soil samples, 1,363 line km of versatile time-domain electromagnetics (VTEM) and approximately 30 km of Moving Loop Electromagnetic (MLEM). The combination of exploration techniques has identified six priority targets with five of the MLEM targets sitting within the Yardilla Structure (Figure 1). The MLEM targets were aircore drilled in August 2014.
Just over 2300m of aircore drilling was undertaken for 71 vertical drill holes with an average depth of 37m. The main area of focus was the south-eastern section of the tenement where the drilling confirmed high grade metaphoric mafic assembles.
The drilling program was designed to refine six priority targets for deeper drilling at the Fraser Range Project. The aircore confirmed mafic lithology in Targets MELM L2/1, MELM L2/2, MELM L4/1, MLEM L5/1, and MLEM L6/1 these targets are under review for deeper drilling. No mafic units were intercepted at MLEM L14/1.
The geochemical and geophysical data sets were also reviewed for gold potential. Both are positive, with the Yardilla Structure on the eastern edge of the project area hosting historical elevated gold values. The project area has an extremely limited geological outcrop as is the case for large areas of the Fraser Range and geochemistry and geophysics have been the main exploration tools.