Pure Resources Limited (ASX:PR1) has received “highly encouraging” assay results from initial reconnaissance fieldwork at its Killarney Project, located 150km southwest of Kununurra in WA.
The reconnaissance sampling of outcropping malachite mineralisation returned high-grade copper values of 19.3% Cu & 78 g/t Ag (PRRK01), 11.4% Cu & 26 g/t Ag (PRRK02) and 1.8% Cu & 6 g/t Ag (PRRK03).
It is exciting to validate the presence of high-grade copper mineralisation at the Killarney Prospect,” Executive Chairman, Patrick Glovac, said.
“Copper mineralisation at Killarney was first identified in 1972 and there has been very little follow-up work completed. To physically go out and observe abundant, surficial, high-grade malachite mineralisation is an encouraging sign of things to come.
“Following the successful listing of Pure, we have been in the field visiting all the key target areas we identified during desktop studies to refine our exploration strategy for the year ahead.
“We are encouraged by the presence of surficial copper at Killarney and we have mapped mafic-ultramafic intrusive rock types at the Turkey Creek Prospect, which we believe are prospective for Norilsk style Ni-PGE-Cu mineralisation.”
During an initial site visit conducted in March 2022, six rock chip samples were collected from the Killarney and Turkey Creek prospects to validate historical data that was reported by Australian Anglo American Ltd and CRA Exploration in the early 1970’s.
The Killarney Copper occurrence consists of widespread and persistent vein, fracture and disseminated copper mineralisation that outcrops irregularly over an area of 250 x 100 metres. It is centred within the McHales Granodiorite some 12.5 kilometres southeast of Warmun.
CRA Exploration completed the initial work at the Killarney prospects in 1972 and conducted three traverses of rock-chip sampling across the ‘main’ zone of mineralization and obtained copper values ranging from 10 ppm to 3.8% Cu.
In 1972, Anglo identified a malachite-stained gossan which was subsequently called the Turkey Creek Prospect. Anglo described the gossan as having a strike length of 90m (300ft), hosted by a granulite adjacent to a garnet gneiss contact (Anglo, 1973). Grab samples from the gossan returned maximum values of 1.1% Ni and 0.6% Cu.