Mineral systems approach applied to GIS-based 2D-prospectivity modelling of geological regions: Insights from Western Australia

摘要: Abstract GIS-based 2D prospectivity modelling of three greenfield geological regions Western Australia, namely, the West Arunta Orogen, Musgrave Orogen and Gascoyne Province, was implemented for a range deposit types including orogenic intrusion-related gold, volcanic sediment-hosted base-metal sulfides, magmatic nickel–copper platinum group element iron-oxide copper tin–tungsten, igneous metamorphic related rare earth elements, surficial uranium unconformity-related uranium. Conceptual mineral systems models were generated to identify targeting criteria. The inputs spatial proxies derived from 1:100,000 1:500,000 scale public domain data. results showed similar patterns all targeted except types. Once favourable geodynamic architecture is established, it can sustain different produce diverse depending on nature ligands in source physical–chemical environment trap through repeated reactivation subsequent history. A model proposed explain formation at stages tectonic evolution province. implication region that may not be type specific. Further, should carried out sequentially progressively finer scales (regional- district- camp-scale), using only criteria are relevant specific delineate targets