Critical Resources Ltd (ASX:CRR) has confirmed copper and deep disseminated sulphide mineralisation in its seventh diamond drill hole (Hole 11A) at the Gibsons prospect, part of the broader Halls Peak project in New South Wales.
Assays received from Hole 11A confirmed copper mineralisation across 7.63 metres (42.04-49.67 metres) downhole at 1.15% copper (Cu), 0.23% zinc (Zn), 0.01% lead (Pb), 73.15g/t silver (Ag) and 0.01g/t gold (Au).
Critical has planned 1,200 metres of additional drilling to test the extent of the copper mineralisation seen in Hole 11A.
Holes have also been designed to test the depth and extent of geophysical anomalies consistent with the current exploration strategy at Halls Peak.
“Adding to the already impressive results”
Critical Resources managing director Alex Biggs said: “Extension of the drilling campaign at Gibsons is confirmation that we see huge potential in the Halls Peak project as a whole.
“These additional holes will allow us to further delineate the chalcopyrite mineralisation we intersected in Hole 11A and test geophysical anomalies at depth.
“We are excited to test the potential of the Gibsons prospect further and look forward to adding to the already impressive results we have seen so far.”
Potential to discover further massive sulphide lodes
Critical has encountered intervals of highly anomalous base metal mineralisation to 360 metres downhole Including:
- 3.36 metres (194.54-197.90m) downhole at 0.07% Cu, 0.44% Zn, 0.07% Pb, 1.83g/t Ag and 0.02g/t Au, that included 0.12 metres downhole @ 1.05% Cu, 2.06% Zn, 0.007% Pb, 16.7g/t Ag and 0.08g/t Au, and
- 3.40 metres (356.60-360.00m) downhole @ 0.1% Cu , 0.94% Zn, 0.42%Pb 8.63g/t Ag and 0.01g/t Au.
The presence of base metal sulphides to a depth of 360 metres extends the downhole depth of the known base metal exhalative system and indicates potential for the discovery of further massive sulphide lodes both laterally and at depth.
Drilling at Halls Peak continues to expand areas of known mineralisation.
Next steps
Hole 11A intersected intervals of sheeted veins and stockwork mineralisation containing chalcopyrite and pyrite downhole from 42.00 - 50.72 metres.
Petrographic and geochemical studies are being undertaken to identify the causative mineral system of this potentially new style of mineralisation.
Geophysical reinterpretation post drilling demonstrates that the surveyed drill hole passed close to a geophysical anomaly.
The purposed of the newly planned drill holes is to retest this anomaly and depth potential.