Exploration for possible economic stratiform/stratabound, volcanogenic-epigenetic lead-zinc mineralisation hosted within lower Kanmantoo Group metasediments of middle Cambrian age, over a small area located approximately 80 km north-east of Adelaide, has been prompted by the recent discovery in the Kanmantoo Trough region of the 2.8 Mt Angas zinc (+ silver-lead) deposit occurring in similar rocks near Strathalbyn. At the outset, stored drill cores from exploratory and stratigraphic holes that had previously been drilled in the Karinya Syncline portion of the Kanmantoo Trough were inspected and re-logged, and rock structures and tectonic features in the field target area were examined to assess factors other than geophysics and geochemistry that could be used to help select optimum drilling sites. A complicated cross-faulted anticline-syncline pair developed within the gossanous, zinc-rich Karinya Shale over a 6 km x 2.5 km area west of Frankton township became a priority target. During mid-2007, a 300 line km low-level aeromagnetic survey at 50 m flight line spacing was flown there by UTS Geophysics for Lodestone Exploration; this was soon followed by the acquisition of a 15 square km detailed gravity survey with stations read at 100 m intervals, plus also the acquisition of a 21 line km moving loop surface Pulse EM survey utilising 100 m and 300 m line spacing. Some resulting coincident EM, magnetic and gravity anomalies were then tested by drilling two scout vertical RC/diamond tailed holes with a total penetration of 266 m, which were followed in August 2007 by the drilling of two deeper, inclined HQ/NQ2 diamond cored holes totalling 660 m. No significant mineralisation was found by the drilling. The bedrock consists of graphitic shales carrying only minor iron sulphides. Downhole EM logging was carried out in the drillholes, which yielded information suggesting that similar strongly conductive rocks extend for more than 100 m distance away from each hole's bore. Because the entire thickness of the Karinya Shale section at the Frankton prospect had been drilled without encountering significant mineralisation, it was planned by Lodestone to turn future attention to other sections of this prospective stratigraphic unit that were known to be not necessarily solely graphitic, but might also comprise banded calc-siltstone and metasandstone facies which could hold mineralisation potential at their contacts. A programme of geological mapping and additional geophysical surveying, plus calcrete and subcrop geochemical sampling, was therefore proposed. However, it transpired that no further field work actually was done during the following two licence years, before the decision was taken to let tenure of the ground lapse.