There seems to be plenty of gold at depth at Great Northern Minerals' Big Rush project. Pic: Getty Images
Great Northern firms up deeper gold at Big Rush
Mining
share
Special Report: Gold mineralisation at Great Northern Minerals’ (ASX:GNM) Big Rush gold project in Queensland has now been confirmed to a vertical depth of at least 200m.
All diamond drilling assays have being received with the latest results being 3.05m at 4.23 grams per tonne (g/t) gold including 0.45m at 21.47g/t gold from 238m, 5.15m at 1.21g/t gold from 230m and 5.3m at 1.27g/t gold from 204m.
The four-hole diamond drilling program followed previous shallower reverse circulation drilling under the Central, Southern and Northern pits that returned high grade results such as 1m at 81.68g/t gold, 3m at 21.73g/t gold and 2m at 17.16g/t gold.
With drilling successfully completed, the company will now start work on estimating a JORC resource for Big Rush.
Given that Big Rush has already been proven over a strike of 2,000m, there is every reason to believe that a significant gold resource is present.
It has also started aircore and RC drilling at Camel Creek to follow up on previous significant intersections.
“The diamond holes under Big Rush confirm and lend strength to our geological modelling, that the mineralisation extends in depth,” managing director Cameron McLean said.
“At Big Rush we have already shown the strike over 2,000m and all of this data is now being validated and compiled by CSA Global as we commence preliminary work on a JORC Resource for Big Rush.”
He added that extensional and infill drilling at Camel Creek will lead to a maiden JORC resource for the project.
Historical gold mines
Big Rush and Camel Creek are two of the three historical gold mines that are the centre of Great Northern’s plans to develop a new multi-million ounce gold camp.
The shallow, open cut Big Rush, Golden Cup and Camel Creek mines produced a combined +160,000oz at an average grade of 1.9g/t in the 90s.
Notably, all three were ‘in mineralisation’ when mining stopped and had never been drilled at depth.
For early cashflow, Great Northern is looking at the viability of processing 2 million tonnes of previously mined material on existing heap leach pads.
There are also third-party toll treatment facilities at Thalanga, Charters Towers and Mt Garnet — all within potential trucking distance.
This article was developed in collaboration with Great Northern Minerals, a Stockhead advertiser at the time of publishing.
This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.
