In 2021 North Central Gold acquired more than 7,900 line-km airborne gravity gradiometry (AGG), scalar vertical gravity, and total magnetic field intensity (TMI) data over tenements in the Stawell Corridor north of Horsham in north-western Victoria. The purpose of the survey was to improve the understanding of the geology and the prospectivity of the bedrock beneath the cover. The observed gravity gradiometer data has revealed deep-seated Devonian (?) density anomalies in the Cambro-Ordovician bedrock beneath 40m-200m thick Cenozoic Murray Basin cover, providing Stawell Magdala basalt dome-type gold exploration targets. 2D interpretation and 3D inversion of the observed AGG and TMI data have provided structural information and fault information about the underlying bedrock. The survey data have also highlighted the presence of shallow Cenozoic strandlines which provide additional mineral sand exploration targets. The extensive coverage and the uniform quality of the airborne geophysical data has allowed North Central Gold to rapidly identify and focus on specific tenement areas for retention and further exploration.

Open-Access Online Publication: May 29, 2023