Two separate areas located respectively 20-45 km west-southwest and 70 km south-southwest of Whyalla have been selectively relinquished from EL 2741 in accordance with licence conditions. The ground has potential for Palaeoproterozoic to Mesoproterozoic epithermal / hydrothermal base and precious metal mineralisation, possibly of iron oxide - associated copper-gold type, related to intrusive igneous rocks and shear structures developed along the regional crustal suture of the Roopena Fault Zone. In the initial phase of exploration operated by Aurora Gold, a geophysical consultant was contracted to review and interpret the existing aeromagnetic, gravity, IP and TEM data to identify possible IOCG drill targets. Three of his resulting 20 targets lie within the now relinquished areas. Aurora's follow-up shallow RAB drilling (6 vertical holes for a total 368 m) of these targets, which comprise gravity highs lying within or near the Roopena Fault Zone, encountered chlorite, epidote and silica-altered siltstone, sandstone and minor amphibolite occasionally carrying slightly elevated copper values (maximum 305 ppm Cu), beneath a 20-25 m thickness of Recent cover. When Peninsula Minerals took over as licence joint venture operator, they completed a programme of calcrete geochemical sampling over the southern third of the original licence area. Samples were collected over a 250 square km area on a staggered 800 m x 400 m pattern, with 100 m x 200 m infill in five areas. This survey highlighted the southern Roopena gravity-magnetic complex, where maximum gold and copper values of 17.6 ppb Au and 812 ppm Cu were returned. Next, Haines Surveys were commissioned to complete two detailed gravity surveys of the Southern Roopena and Target 11 anomalies, with the initial gravity interpretation and modelling undertaken by Peninsula Minerals geophysicists. When Minotaur Exploration entered the joint venture, they merged and re-interpreted all of the gravity data. Target 11, covered by a 200 m x 200 m gravity grid, was resolved as a linear gravity feature, 1.2 km long with an amplitude of 3 mGal, located on the northern flank of a magnetic anomaly. The Southern Roopena complex was shown to contain two linear gravity anomalies, as revealed by a 500 m x 100 m data coverage. The easternmost anomaly, to 2 mGal in amplitude, coincides with an aeromagnetic anomaly that is probably caused by an amphibolite which was intersected in previous drilling. The untested western gravity anomaly, also to 2 mGal, has a strike length of 3 km, and lies adjacent to Peninsula's anomalous copper-in-calcrete sample. Minotaur chose to drill the Target 11 anomaly first, and put down a single RC drillhole there (RP05003 to TD 228 m), partly funded by the SA Government's PACE Initiative. This hole penetrated Proterozoic basement below 63 m depth that consists of a 102 m thickness of amphibolitic rock, altered metagabbro and metapyroxenite, which possibly originated as layered basic sills, and which has a high chromium content across a broad interval between 50 and 165 m depth, averaging 1342 ppm Cr, overlying an interval to TD containing altered granite and amphibolitic gneiss that show substantially lower Cr values. Within the drillhole, one high base metal assay (4850 ppm Zn) was returned from the depth interval 219-220 m, while the interval 140-160 m also contains elevated As and Zn. This drilling result is considered by the licensees to have downgraded the potential for finding shallow IOCG mineralisation in the now relinquished parts of EL 2741.