THE DRILL SERGEANT: Azure Minerals (ASX: AZS) claimed discovery of a new nickel-copper sulphide zone at the company’s Andover nickel-copper project (60% Azure / 40% Creasy Group) in Western Australia.
Azure Minerals made the claim after its latest diamond drillhole, ANDD0004, intersected a 38m-wide zone containing substantial intervals of nickel-copper sulphides, including zones of massive and semi-massive sulphides, which the company suspects to be the likely source of a newly defined and previously untested, strongly conductive and laterally extensive, electromagnetic (EM) conductor.
ANDD0004 was designed to test a strong and laterally extensive conductor (VC7) that had been identified by a recent surface fixed loop electromagnetic (FLTEM) survey.
The hole intersected a 38.1m-wide interval containing multiple zones of nickel-copper sulphide mineralisation from a downhole depth of 336.1m, including:
6.1m from 347.5m of blebby to matrix nickel-copper sulphides;
4.05m from 354.8m of massive nickel-copper sulphides; and
4.1m from 359.2m of heavily disseminated grading to matrix and massive nickel-copper sulphides.
The drilling has demonstrated the VC7 conductor extends for approximately 1,050m east-west and at least 150m to 200m vertically and remains unconstrained at depth, down-dip to the north.
“Given Azure’s recent success in our first three holes drilled at Andover (announced in November 2020) and the distribution of outcropping nickel and copper-rich gossans, we considered that the area to the west of our initial drilling was highly prospective,” Azure Minerals managing director Tony Rovira said in the company’s ASX announcement.
“This concept was supported when new surface FLTEM surveys identified a highly conductive and laterally very extensive east-west trending conductor that was interpreted to represent a substantial body of sulphide mineralisation.
“Geophysical modelling indicates this conductor lies beneath and is spatially separate from the anomalies targeted by our first three drill holes.
“Diamond drill hole ANDD0004 targeted the eastern end of the new conductor about 150 metres to 200 metres below the mineralisation intersected in the first three holes.
“The hole successfully intersected substantial quantities of nickel and copper sulphide mineralisation at almost the exact depth the modelling predicted the EM conductor plate to be located.
“The key point to take away from our drilling successes to date, is that wherever we have targeted an EM conductor at Andover, we have intersected nickel-copper sulphide mineralisation.
“The strongly mineralised intersection in ANDD0004 leads us to believe that if the one-kilometre-long conductor plate is similarly mineralised throughout, there is excellent potential here for a major new nickel-copper deposit.”
Azure already has hole ANDD0005 underway to test the up-dip extension with a planned intersection point approximately 50m above the sulphide zone intersected in ANDD0004.
A subsequent hole, ANDD0006, will test the down-dip extent approximately 50m below ANDD0004.
Downhole EM (DHTEM) surveying is being undertaken in each of the drillholes as they are completed, which Azure expects to provide greater definition on the vertical / down-dip extent of the VC7 conductor plate.
Based on FLTEM surveying completed to date, the company has identified 12 separate conductor anomalies within the Andover project area.
Drilling to test other high-priority conductors is being planned and, subject to drill rig availability, likely to commence in the first quarter of 2021.
TO READ THE FULL ANNOUNCEMENT: CLICK HERE