Buried mafic igneous intrusive complexes, occurring in shallowly subcropping Proterozoic basement in onshore areas totalling 1692 square km near Streaky Bay, were formerly investigated by Minex (SA) Pty Ltd and later by Mithril Resources Ltd for their potential to host possible economic Voiseys Bay style nickel-copper-cobalt sulphide mineralisation and any associated base and precious metals. Following on from the work addressing such targets, which was previously reported as a data package for public release in April 2005, licence operator Mithril Resources undertook image processing of newly acquired Minotaur and PIRSA gravity data for the subject licences, and identified ten gravity anomalies with amplitudes of up to 10 mGal which could have alternative potential for disclosing Prominent Hill IOCG type haematite breccia - associated mineralisation in Hiltaba Suite granite plutons. In addition, exploration for buried deposits of sedimentary uranium within Tertiary palaeochannels was commenced via gravity and satellite thermal imagery interpretation, plus the conduct of a microgravity survey to enhance the definition of channel outlines. The acquisition of detailed gravity readings along six traverses at 100 m station spacing was followed by the drilling of 76 aircore holes for a total penetration of 5495 m. 23 of these holes, for a total of 1357 m, were drilled into IOCG targets after 30/9/2005 by new joint venturer Minotaur Exploration, with funding assistance obtained from PIRSA's PACE Initiative (Project DPY3-57); another 35 of the holes, for a total of 2651 m, were drilled by new entrant licence partner Toro Energy into palaeochannel uranium targets, also using PACE Initiative funding assistance from the same project; and 18 holes for 1487 m were drilled by Minotaur Exploration into iron poor, gold-only targets. For the IOCG targeted drillholes, assaying of their downhole drill cuttings samples revealed no anomalous metal values, and no pronounced haematite and/or magnetite alteration was observed within the Proterozoic basement rocks; these results served to strongly downgrade the tenements' perceived potential to contain such mineral occurrences. The drilling for sedimentary uranium deposits within interpreted Tertiary palaeochannels was carried out along five traverses laid out at right angles to the inferred channel flow direction, with up to ten holes being drilled 200 m apart, which were gamma ray logged and geochemically sampled. Anomalous radioactivity log responses were obtained from three of the traverses, with a peak response of 152 counts per second coming from sands in hole SBU01003 on Traverse 1. However, only low order uranium assay values were returned from downhole sediment samples taken along Traverses 8 and 9, that were located downstream along the Yaninee Palaeochannel from Carpentaria Exploration's former uranium mineralisation discovery. Consequently, Toro Energy decided late in 2006 not to continue with further infill or extension drilling of the interpreted palaeochannels on the subject licences. In Minotaur's gold-only target drilling, a variety of meta-igneous basement lithologies were encountered which adequately explained the gravity and magnetic anomalies tested, but no anomalous gold assay values were returned. For the remainder of the licences' tenure periods, between early 2007 and mid 2009, no additional field-based activities were undertaken.