Silver City Minerals Ltd (ASX:SCI) is planning to undertake an extensive geochemical sampling program using rotary air blast drilling to sample bedrock under the alluvial cover at its Copper Blow Project in New South Wales.
This will be carried out in conjunction with further ground geophysical surveys including gravity and IP (induced polarisation) to generate new drill targets.
To date, exploration carried out at Copper Blow by Silver City and joint venture partner CBH Resources, has focussed on an ironstone-hosted high-grade copper-gold zone within a well define crustal structure known as the Copper Blow Shear Zone.
It is clear that copper-gold mineralisation located in ironstone at Copper Blow is part of a larger mineral system which covers much of the eastern part of the tenure.
The company’s recent drilling of broad zones of finely disseminated sulphide returned no significant copper or gold.
This follows a hole which returned a broad intersection through the Copper Blow Shear, but hosted only moderate amounts of magnetite and little copper sulphide.
From these results, Silver City is encouraged by the extent of the sulphide and strong alteration demonstrated, as this is considered geologically significant with respect to intrusion-related IOCG mineralisation that the company is targeting.
Iron oxide copper gold (IOCG) deposits in cratonic rocks in the Gawler and Curnamona Provinces
Silver City’s resource assessment and drilling will continue at the main Copper Blow prospect to study the potential of toll treating high-grade mineralisation at the treatment plants in Broken Hill.