Impact Minerals continues run of good news from Red Hill
THE DRILL SERGEANT: Impact Minerals (ASX: IPT) announced further high-grade platinum group metal (PGM) mineralisation and the first major intercept of zinc-lead-silver mineralisation from the Red Hill prospect.
The Red hill prospect is part of the company’s Broken Hill project in New South Wales.
Impact completed drill hole RHD014, which the company explained tested the western part of the ultramafic unit at Red Hill and underlying metasedimentary rocks.
The hole returned:
25.4 metres at 0.6 grams per tonne platinum, 1.3g/t palladium and 0.1g/t gold (2g/t Pt+Pd+Au), 0.3 per cent copper and 0.3 per cent nickel from 11m down hole, including 3.3m at 2.1g/t platinum, 4.9g/t palladium and 0.4g/t gold (7.4 g/t Pt+Pd+Au), 0.7 per cent copper and 0.6 per cent nickel from 32.4m down hole.
“The ultramafic In RHD014 was only sampled from 11 metres down hole and mineralisation is open towards the surface,” Impact Minerals explained in its ASX announcement.
“The upper eleven metres are being prepared for assay.”
Impact said the mineralisation occurs within and immediately below the host ultramafic intrusion and also within a layer of metasedimentary rocks several metres thick within the ultramafic.
RHD014 is close to similar near-surface mineralisation Impact intersected with drill hole RHD002 (16m at 1.4g/t Pt+Pd+Au, 0.2 per cent copper and 0.3 per cent nickel) in January 2015.
Hole RHD009, which was drilled to test a modest gravity anomaly immediately north west of the main Red Hill intrusion, intersected the lower contact of the ultramafic unit at 88.5m down hole.
Drilling showed a thick interval of disseminated and vein-hosted zinc and lead mineralisation occurs mostly within the metasedimentary rocks and returned assays of:
82.5m at 0.3 per cent zinc, 0.2 per cent lead and 1.5g/t silver from 91m down hole; including 0.8m at 4.1 per cent zinc, 4.6 per cent lead and 18.6g/t silver from 132m; and
2.9m at 2.8 per cent zinc, 0.4 per cent lead and 3.7g/t silver from 141m.
According to Impact, this footwall sequence of rocks are part of a regional package of rocks colloquially called the ‘Broken Hill Sequence’, which it said are similar to the host rocks at the zinc-lead-silver Broken Hill mine.
The company considers the sequence to be prospective for similar mineralisation and two of these sequences have been mapped at surface at Red Hill.
“The position of these rocks in Hole RHD009 was unexpected and is likely to reflect unrecognised folds at depth,” Impact Minerals said.
“Drilling is in progress to test Target T2, an EM conductor interpreted to be down dip of mineralised Broken Hill sequence rocks at surface.
“The prospectivity of the Red Hill area for zinc-lead-silver mineralisation will be assessed following completion of the current drill program.”
Email: info@impactminerals.com.au
Website: www.impactminerals.com.au