Rock chip sampling at Infinity Mining’s Brisbane nickel prospect in the Pilbara region of Western Australia has returned anomalous nickel and chromium results within the company’s greater Panorama project.
The explorer collected a total of 35 samples at the site with assays showing results of up to 7636 parts-per-million nickel and 8918ppm chromium consistent with previous geochemical results.
Infinity recently conducted a helicopter electromagnetic survey over the Panorama project that identified a prominent conductive target 350m east of the Brisbane prospect that the company believes could host a buried nickel sulphide system. The final interpretation of the data is currently underway.
The explorer says once access tracks into the prospect have been repaired, a program of more detailed reconnaissance and rock chip sampling over the electromagnetic anomaly will be carried out to identify potential drill targets. The explorer plans to drill the main targets in the 2023 field season.
The Brisbane prospect was first identified in 1969 by Planet Metals that conducted a geological mapping and rock chip sampling program at the site that returned results of up to 6319ppm nickel and 14800ppm chromium.
The site sits along the basal contact of an ultramafic intrusion of the Dalton Suite that is considered to be an important host rock for nickel. The recent sampling program also unearthed anomalous levels of zinc up to 2569ppm.
Infinity Mining Chief Executive Officer, Joe Groot said: “The identification of the Brisbane nickel prospect in open file data and confirmation of the anomalous Ni-Cr geochemistry is very exciting, especially as the preliminary work from our VTEM survey has identified a prominent conductive anomaly target nearby.”
The Panorama project consists of three tenements covering 252.3 square kilometres about 40km west of Marble Bar. The western side of the project is located over a complex structural area on the eastern edge of the Shelley monzogranite complex that also hosts the nearby Sulphur Springs and Kangaroo Caves projects. Sulphur Springs holds 17.4Mt at 1.3 per cent copper, 4.2 per cent zinc and 17 grams per tonne silver whilst the Kangaroo Caves deposit hosts 3.55Mt at 6 per cent zinc 0.77 per cent copper and 15.2 g/t silver.
Infinity has enjoyed a busy past six months at its Pilbara tenements. Just last month the company wrapped up its maiden RC drilling campaign at its Tambourah South lithium prospect in the Eastern Pilbara with visible lepidolite and spodumene spotted in 18 of the 21 holes sunk for 1812m. Additional Pilbara exploration tenements held by the company include Tambourah North, Strelley Gorge, Hillside and Noreena Downs.
Infinity also has a swag of prospecting, exploration and mining leases and licences in highly prospective gold-copper-lithium terranes in WA’s Goldfields.
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By Matt Birney
