Maiden exploration by Caeneus Minerals (ASX: CAD) at the Roberts Hill gold project in Western Australia’s Pilbara region has identified disseminated sulphides within numerous drillholes.
The company has completed approximately 25% of a planned 20,000 metre aircore program which started this month across project Zones A, B, C and D.
Over 20 drillholes around Zone A were found to contain disseminated sulphides associated with an “unusual” anticlinal structure measuring 2 square kilometres with a slight south-southeast plunge.
The lithologies and quartz veination observed in the drillholes has prompted Caeneus to prepare a new program of works for deeper percussion and diamond drilling to assist in understanding the geological and geophysical model for the zone.
An induced polarisation survey covering part of Zone A has also been planned for an immediate start pending ground crew availability.
Drilling has now commenced on lines cleared for access south of Zone A, designated as Zones B, C and D.
Caeneus has meanwhile been working with Southern Geoscience to evaluate airborne geophysical signatures covering a most likely intrusive feature at the additional Zone E.
Prospecting, mapping and clearing of new drill tracks has identified highly brecciated, silicified and bleached outcrop.
The company said the occurrence of outcrop in this part of the tenement is “unusual” and hopes to clarify the discovery through upcoming aircore drilling of the feature.
Caeneus’ exploration licence at Roberts Hill covers 170sq km, approximately 50km to the south of Port Hedland, in the region which hosts De Grey Mining’s (ASX: DEG) transformational Hemi and Shaggy gold discoveries.
The ground is comprised of structurally and chemically-altered granitic, intermediate and ultramafic intrusive rocks which are considered highly-prospective for gold occurrences similar to Hemi.
With the Mallina and Berghaus shear trends crossing the Roberts Hill tenement, Caeneus said it is “highly encouraged” that similar intrusive-related gold anomalism will be discovered on its acreage.
In June, De Grey released a maiden mineral resource estimate for Hemi of 2.8 million ounces grading 1.3 grams per tonne gold, with “clear potential” for growth along strike and at depth.