Mafic and ultramafic rocks of the Proterozoic Giles Complex, which have intruded highly metamorphosed basement units of the Musgrave Block in an area 360 km WNW of Marla, were considered to have potential to host massive Ni sulphide mineralisation, whilst other, possible opportunistic targets included gold, PGE, diamonds and base metals. Initial work included reconnaissance field mapping and collecting of rock chip, stream sediment and bulk soil samples for geochemical analysis. Peak assay values of 340 ppb Pt and 155 ppb Pd were followed-up by further geochemical sampling, resulting in definition of the [Mount] Alvey prospect, a platiniferous layer in gabbro-norite. Farminee Rio Tinto then carried out detailed geochemical traversing of this prospect and of nearby layered cumulate bodies, plus orientation ground magnetics and magnetic susceptibility measurements. A detailed aeromagnetic-radiometric survey, completed over the licence area as part of a larger regional survey, and a subsequent airborne EM (Tempest) survey, did not detect any obvious strong magnetic sources or anomalous conductors. Reverse circulation drilling at the Alvey prospect (3 holes, total 544 m) intersected anomalous PGE-rich horizons within melagabbro-norite in each hole that are consistent with the surface anomalism, but gave no indication of the presence of economic precious metal grades.