Riversgold Ltd (ASX:RGL) has zeroed in on a promising new geochemical target at the Tambourah Project in Western Australia, where the hunt for lithium has revealed a copper target with a potential strike length of 12 kilometres.
The target was identified as a volcanogenic massive sulphide (VMS) copper target with geochemical survey data, which was coupled with a historical drill hole completed by Hawkstone Minerals during 1970-71.
That drilling program produced an intersection of 30.5 metres at 1.1% copper from 43 metres of depth, which was later confirmed by a rock chip sampling program completed by DeGrey Mining Limited in 2008, which produced results of up to 13.8% copper, as well as 1.25 g/t gold and 29.3 g/t silver.
The target has received no follow-up exploration with no holes drilled in the area after 1971.
Exploration to begin next week
“The RGL team has recently reviewed the geochemical data generated from our past lithium programs and has identified a very clear copper corridor running north-south right through the centre of the tenement,” Riversgold chair David Lenigas said.
“Historical drilling and high-grade chip samples, that coincide with the newly identified copper corridor, add to the significance of this discovery.
“We plan to have people back on the ground from the end of next week to continue with exploration.”
RGL used a combination of stream, rock chip and regolith samples to highlight the copper anomalism’s strike, which stretches over about 12 kilometres.
Next week’s groundwork will be focused on validating the historical rock chip results, after which the company will consider methods for advancing copper exploration on the tenure.