en.Wedoany.com Reported - Australian mining company Western Mines Group (ASX:WMG) has announced the latest drilling results from the Mulga Tank project in the Eastern Goldfields of Western Australia, identifying extensive magmatic nickel sulphide mineralisation in hole MTRC009.
The hole is a diamond tail of the first-stage reverse circulation drilling, partially funded by Round 31 of the WA Exploration Incentive Scheme. The cumulative nickel sulphide mineralisation length in the diamond core tail is 820 metres, with a grade of 0.30% nickel, 135 ppm cobalt, 67 ppm copper, and 27 ppb platinum+palladium. A high-grade mineralisation zone was intercepted at a depth of 1,303 metres, with a length of 116 metres and a grade of 0.50% nickel, 164 ppm cobalt, 93 ppm copper, and 59 ppb platinum+palladium; within this, a 38-metre mineralised section at 1,324 metres has a grade of 0.71% nickel, 207 ppm cobalt, 188 ppm copper, and 0.10 g/t platinum+palladium. Within the basal zone, 12 one-metre samples have nickel grades exceeding 1%, with a one-metre sample at 1,382 metres reaching a grade of 2.34% nickel, 626 ppm cobalt, 233 ppm copper, and 0.15 g/t platinum+palladium.
Managing Director Caedmon Marriott stated that the company believes the Mulga Tank ultramafic complex may host a large-scale Perseverance-type massive sulphide deposit somewhere within its basal contact zone, and results like MTRC009 further reinforce this view. Marriott noted that the drilling results not only show highly disseminated sulphide mineralisation but also reveal large globules and remobilised sulphide segregations and veins. He indicated that these phenomena suggest the area possesses all the conditions for forming a basal massive sulphide deposit, with a high-grade system—where patchy globules or veinlets can still produce 1% or 2% nickel results over one-metre sample intervals, even with sulphide content below 10-20%.
Western Mines has completed nine deep diamond drill holes on the main body of the Mulga Tank complex. The company stated that the sulphide-rich basal zone can be traced laterally over hundreds of metres to several kilometres, revealing the structural characteristics of the complex, with the horizon generally dipping moderately east and plunging slightly north.
After receiving A$250,000 in geophysical funding from the Exploration Incentive Scheme, the company is finalising plans for a seismic survey of the complex. The proposed active-source seismic survey covers approximately 100 line kilometres and about 35 square kilometres, which will help visualise the three-dimensional structure of the complex and map potential basal contact zones and possible feeder channels.
Western Mines is advancing its Phase 5 drilling program. The drill rig recently completed reverse circulation holes MTRC078 to MTRC081 near hole MTRC046 and MTRC082 near hole MTRC066. The company currently holds a mineral resource estimate of 1.968 billion tonnes, with a nickel grade of 0.27%, containing over 5.3 million tonnes of nickel.
Western Mines Group is a mineral exploration company focused on the exploration and discovery of gold and nickel sulphide deposits in Western Australia.
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