The Project contains a number of iron ore deposits including four key prospects; Sequoia, Sequoia East, St Andrews and Ibis.
Sequoia is the most advanced of the prospects. It lies close to rail infrastructure only 25 km from the Adelaide-Darwin railway line and 50 km from the Permian coal deposits of Lake Phillipson. Ground work by S.A. Dept of Mines ("PIRSA") has delineated a pre-JORC resource of 22 million tonnes of magnetite grading 28.4%Fe. PIRSA reported that the deposit comprised of magnetite banded iron formation that is readily beneficiated to 70.3% Fe. PIRSA also suggested that many of the intersections are anomalous in gold. The importance of co-credits from by-product elements is demonstrated in the Cairn Hill deposit but has been largely ignored at Sequoia to date.
Previous exploration has revealed magnetic anomalies at the Ibis and Sequoia East prospects. Ibis is 35km west of Sequoia and is interpreted to have two magnetic units with thicknesses of 80m and 105m and a depth to target of 80m. Sequoia East, located 9km east of Sequoia, is a strong magnetic anomaly across an area of 3.5km by 0.8km. Four magnetic zones have been defined with the most prominent having a modelled strike of 350m, a width of 110m and a depth to target of 85m.
Apollo's tenement area is located 30 km east of the Challenger Gold mine. The Challenger Gold mine produced 446,000 oz of gold by the end of June 2007 and presently has a remaining gold resource in excess of 1 million oz.
Calcrete geochemical surveys carried out in the 1990s revealed evidence of gold mineralisation in the east of the tenement area, particularly at the Birthday, Mars and Comet prospects. This work was scaled down due to weak gold prices in the late 1990s, leaving the prospects insufficiently tested. Imaging of calcrete gold data suggests that the eastern part of the tenement area covers a regional gold concentration. Further testing of the existing data is needed using improved calcrete geochemistry techniques not available in the 1990s.
The Garford Palaeochannel System runs through the north western part of the tenements. This system has potential for sedimentary roll front uranium deposits. Re-processing and levelling of regional airborne radiometric data by PIRSA revealed a number of uranium-channel radiometric anomalies. Of particular interest is a strong anomaly immediately north-west of the tenement area with some indication of smaller anomalies within the tenement area.