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Limited drilling beneath the mined area has not resulted in evidence that high grade primary mineralisation continues below the old workings although this cannot be ruled out. Reports written following inspections of the workings during mining refer to a shallow southerly plunge to the mineralisation so the primary mineralisation, responsible for the high-grade secondary mineralisation, may be located to the south of the surface workings.
Exploration by CRA Exploration (CRAE) over the Halls Reward Prospect during the period 1991 to 1995 located a previously unknown additional mineralised lode (West Lode) approximately 200m west of and parallel to the old mine. The West Lode apparently has a more persistent strike extent than the mined lode and shows in a dipole-dipole IP geophysical survey completed by CRAE over a strike length of about 900m. CRAE drilled a total of 19 RC holes at Halls Reward, with most of the holes into and around the West Lode, and recorded a number of low-grade copper intersections.
Geophysical data together with detailed geological mapping conducted by Superior during late 2020 indicates that there is significant potential for the existence of additional high grade copper-gold and sulphide copper-nickel mineralisation within the prospect area.
A program of work including geophysical surveying and potential drilling is being planned.
