First-pass RC drilling by joint venture DiscovEx Resources and Carnaby Resources at its Shamrock prospect, part of the Greater Duchess project near Mt Isa in Queensland has unearthed a more than 750m long corridor of copper-gold sulphide mineralisation. Headline strikes from the 8-hole, 1888m campaign include 4m at 1.5 per cent copper inside of a broader 7m hit going 1.1 per cent from 76m.
The partnership welcomes the results and suggests they are immensely encouraging given the mineralisation was struck across very wide hole spacings of up to 380m.
DiscovEx and Carnaby landed the feature intercept at one of the campaign’s northern most holes, however notable mineralisation was also returned from bores plunged further south.
These include a 6m copper intersection grading a solid 1.1 per cent from 61m and a 3m parcel running 0.8 per cent from 122m.
Additional mineralisation came in the form of three intervals going 2m at 0.7 per cent copper from 15m, 5m grading 0.5 per cent from 20m and 8m running 0.5 per cent from 27m.
Notably, each of the intersections were laced with anomalous gold grading up to 0.2 grams per tonne.
Perth-based DiscovEx offloaded just over 80 per cent of its interest in its Southern Hub exploration tenements, which hosts the Greater Duchess project, to Carnaby about two years ago in return for a free carried interest.
Over the past 12 months or so, the joint venture has made three significant copper-gold discoveries at the Greater Duchess project.
The list includes the Nil Desperandum discovery in December last year, Lady Fanny in January 2022 and the Mount Hope discovery about three months ago.
Significant intersections at Nil Desperandum include a lengthy 41m hit going 4.1 per cent copper with 0.5 grams per tonne gold from 274m and 24m at 6.5 per cent copper and 0.7 g/t gold from 251m.
Prominent intervals at Lady Fanny include a broad 68m hit going 2.4 per cent copper and 0.4 g/t gold from 40m along with a dazzling 13m strike running 4.4 per cent copper from 122m.
Headline copper intercepts at the Mount Hope discovery include 60m at 3.1 per cent, 19m going 8.1 per cent and 75m running 1.7 per cent.
Recent pXRF analysis on diamond core pulled from the nearby Mount Hope Central prospect, returned a swag of solid copper hits including 33m going 1.9 per cent from 250m inside of a larger 46m strike at 1.6 per cent from 237m.
At the neighbouring Mount Hope North prospect, pXRF analysis returned a 41m section going 1.8 per cent copper from 113m.
DiscovEx holds a 17.5 per cent stake in Nil Desperandum and Lady Fanny however the Mount Hope discovery falls outside of the duo’s JV deal and is held exclusively by Carnaby.
Much to the benefit of DiscovEx, Carnaby claims it could deliver a mineral resource at the Greater Duchess project by June next year.
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By Matt Birney
