Prospectivity analysis of the Plutonic Marymia Greenstone Belt, Western Australia

The Plutonic Marymia Greenstone Belt is the sixth largest gold camp in Western Australia. Quantitative estimates of the residual endowment of this greenstone belt based on Zipfʹs Law indicate that the belt contains between 5.5 and 5.9 Moz of gold in undiscovered deposits larger than 0.1 Moz, including six undiscovered deposits ranging in size between 0.7 Moz and 0.4 Moz and another six undiscovered deposits ranging between 0.3 Moz and 0.2 Moz, in addition to several smaller deposits. GIS-based prospectivity analyses using weights-of-evidence and logistic regression models were undertaken to delineate prospective areas where these yet-to-be-discovered deposits could be spatially located. This knowledge will be critical in guiding future exploration programs in the Plutonic Marymia Greenstone Belt.