An aeromagnetic anomaly and nearby gravity anomaly identified in Palaeoproterozoic basement 17 km south of Mingary were tested for base metal mineralisation of Broken Hill or Olympic Dam type by performing a gravity survey and by drilling 7 percussion holes totalling 504 m. The aeromagnetic anomaly was interpreted from the gravity results to be caused by a shallow basin-like body of magnetic rock. Downhole lithologies similar to those of the main lode horizon at Broken Hill were recognised, and accessory tourmaline, apatite and magnetite having elevated Mn and Zn contents were noted, as pathfinders for possible exhalative, sediment-hosted, phosphatic ironstone - related mineralisation. However, significant trace element assay values, notably for lead, fluorine and arsenic, were lacking, and so further work was not recommended.