Infinity extends stay at key Pilbara tenement

Infinity Mining has been granted a five-year extension to its exploration licence for a key tenement that forms part of the company’s Hillside project about 50km south of Marble Bar in WA’s Pilbara region.

The company says the site is highly prospective for shear-hosted gold systems, ultramafic intrusive related nickel-copper and pegmatite hosted lithium deposits.

The explorer believes Hillside also has the potential to host copper-rich volcanogenic massive sulphide deposits similar to the nearby Sulphur Springs and Kangaroo Caves deposits.

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.

The Hillside project sits within the Coongan Greenstone Belt located between the Shaw Batholith to the west and Corunna Downs Batholith to the east.

Infinity Mining Chief Executive Officer, Joe Groot said: “This is excellent news for Infinity, as the Company strongly believes in the high-prospectivity of the Hillside Project given its geological character. Infinity is committed to progressing and expanding its exploration program at Hillside in the coming field season.”

Historical exploration at Hillside has been conducted by several companies including Alcoa in 1980 and Great Southern Mining in 1984. Great Southern conducted a rock chip sample program that returned 20 results with more than 1000 ppm copper with one sample reaching 7800 ppm or 7.8 per cent copper. In 2019 FE Limited, as part of a joint venture at the time with Infinity, completed a 36-hole scout program that returned anomalous copper results.

Last year Infinity conducted an electromagnetic survey across three of its projects in the Pilbara region including Hillside as the company aims to home in on nickel, copper, gold and zinc anomalies.

Infinity says the survey covers the dominant structural corridors within greenstone belts in the East Pilbara district including recently identified geochemical nickel, copper, gold and zinc anomalies at Hillside.

A 2018 helicopter electromagnetic survey identified 18 anomalies the company considered worthy of further exploration. Follow-up rock chip sampling returned several gold results, including 30.25 parts-per-million and 21.89 ppm gold. Another assay from the southern area of the project returned copper results at an impressive 70771 ppm or 7.08 per cent.

Infinity says it is planning an extensive exploration program for the Hillside project this year that will be based on previous work and the results of last year’s electromagnetic survey. The company will be keen to see if it can replicate the results at the nearby Sulphur Springs and Kangaroo Caves deposits.

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