Exploration of an area of covered Proterozoic basement extending northwards from Ardrossan was undertaken to search for possible Stuart Shelf - type stratiform base metal occurrences at unconformity surfaces developed near the base of the Adelaidean, and for sedimentary uranium ore which might exist in buried Tertiary palaeochannels. Percussion drilling (one inclined hole, PW1, to 84 m total depth) of the Wirrahill magnetic anomaly, located 8 km north-northwest of Port Clinton, penetrated a buried massive amphibolite body below 39 m depth, which contains trace to 5% magnetite, and which exhibits a slightly pyritic and carbonate altered zone between 76 and 81 m depth. In the vicinity of an inferred Tertiary palaeochannel underlying the western part of the licence area, the K, Th and U channel values obtained from a ground spectrometric survey delineated 2 statistically anomalous uranium channel features. Shallow percussion drilling to test one of these features that lies 6 km north-west of Price (1 redrilled hole to only 17 m total depth) was unsuccessful, due to difficulty in drilling through a caving (> 6 m thick) unit of unconsolidated sands.