Silver City Minerals (ASX: SCI) has discovered Broken Hill-type lode rocks with elevated lead and silver located within induced polarisation chargeability anomalies at its Razorback West Project in New South Wales.
An induced polarisation geophysical survey of about 25 square kilometres was designed to cover an area of elevated lead-zinc geochemistry previously defined by rotary air blast and reverse circulation drilling.
Importantly, the survey has generated a number of quality targets within rock units similar to those which encompass the Broken Hill deposit – one of the world’s largest accumulations of silver, lead and zinc – to the south.
The presence of lead and silver-bearing Broken Hill type lode rocks within the induced polarisation anomalies highlights the potential for massive sulphide mineralisation in the area.
The survey, which was carried out late in December 2012, has highlighted three distinct zones of elevated chargeability – the Central, Northeast, and East zones.
The Central Zone in particular has outlined anomalies which show a strong correlation to a distinctive elongate gravity anomaly and elevated lead and zinc geochemistry delineated in earlier drilling.
Geological interpretation suggests that the host rocks in the Razorback West area comprise both the Broken Hill and Thackaringa Groups – metamorphosed volcano-sedimentary sequences known to host Broken Hill type mineralisation.
The geochemical anomalies identified at Razorback West are believed to possibly represent the northern extension to the famous Broken Hill “line of lode” corridor offset westward by a fault structure known as the Stephens Creek Shear Zone.
A systematic drilling campaign has been planned to fully assess the new targets which is slated to begin in March-April 2013.
Proactive Investors Australia is the market leader in producing news, articles and research reports on ASX “Small and Mid-cap” stocks with distribution in Australia, UK, North America and Hong Kong / China.