Legend Mining’s board has got its boots on the ground at the company’s Rockford project in the Fraser Range to view field activities on-site including an ongoing 3D seismic survey of its Octagonal prospect.
The company recently engaged hard rock seismic solutions company HiSeis to define the structure of the Octagonal intrusive complex at Rockford to a minimum depth of 1500m below the surface where it is targeting nickel-copper mineralisation.
The decision to conduct the survey was not cheap at more than $1 million and is based on results the company is currently seeing from drilling seismic targets at its Mawson prospect.
Legend expects the data collection phase of the survey to be completed by the end of the month with the final 3D model scheduled within six months.
Once the results are made available the company will incorporate the information gained with existing datasets to define and rank new diamond drilling targets for the 2023 field season at the 24.5 square kilometre Octagonal tenement. A maiden diamond drilling program at the prospect last year hit a broad zone of blebby and semi-massive nickel-copper sulphides.
Legend Mining Managing Director, Mark Wilson said: “It was great for the board to see first-hand the Octagonal 3D seismic survey in operation and ahead of schedule.”
The company says mineralisation at Octagonal shows all the characteristics of a fertile magmatic nickel-copper sulphide system similar to the Nova-Bollinger and Silver Knight deposits in the Albany-Fraser Belt. Octagonal sits within the same structural corridor that host the Nova and Silver Knight intrusions and nickel-copper-cobalt deposits.
The company recently recorded massive nickel sulphides from a diamond drill campaign based on targets identified from a detailed 3D seismic survey that covered a 6.5 square kilometre area of the Mawson prospect.
The greater Rockford project covers more than 3000 square kilometres of tenure within the celebrated Fraser Range, about 250km east of Kalgoorlie.
The explorer recently completed a total of 161 air-core holes across more than 13,000m as part of an overall 30,000m campaign over selected sites at Rockford.
The drilling was targeting a combination of aeromagnetic and gravity features interpreted to represent ultramafic and mafic intrusives within the same structural domain as Mawson.
First-pass assay results across a section of the Mawson prospect produced a positive 12m intercept at 0.1 per cent nickel and 0.09 per cent copper from 58m that the company says is encouraging for future diamond drilling.
Once the latest survey at Octagonal is completed Legend should have a greater understanding of potential copper-nickel targets for the upcoming campaign set for the new year.
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By Matt Birney
