Legend Mining Limited (ASX:LEG) is about to start drilling for nickel, copper and cobalt mineralisation in Area D of its Rockford project in the Fraser Range of Western Australia.
The 100-hole aircore program for circa 8,000 metres will follow-up highly anomalous nickel-copper results obtained in two aircore holes drilled in November 2017.
It will also test additional aeromagnetic and gravity features with broad-spaced drill traverses planned.
“Working our way to the needle”
Mark Wilson, managing director, said: “We are pleased to start our 2018 field season leveraging off the success of the aircore work late last year.
“We feel we have found the haystack and are now working our way to the needle.”
Legend has decided to proceed with the program after confirming that its 4-metre composite sampling methodology provides an accurate indication of nickel, copper and cobalt mineralisation.
Three months to complete
The new program is scheduled to begin by mid-March and is expected to take up to three months to complete.
Aircore drilling last November returned results of 47 metres at 0.30% nickel, 0.11% copper and 0.03% cobalt from 64 metres, and 10 metres at 0.09% nickel, 0.09% copper and 0.01% cobalt from 56 metres.
Elevated copper assays
The elevated copper assays directly associated with the anomalous nickel make these intersections compelling follow-up targets.
Infill aircore drilling will be carried out 200 metres north, south, east and west of the two November 2017 drill holes to determine the extent of the anomalous footprint.
Additional step-out drilling will be undertaken pending favourable results from these holes.
The program is targeting Area D at the Rockford project.
The broad-spaced drill traverses will be carried out at 400 metre spacing in the wider Area D region.
Infill drilling to 200 metres will then be undertaken if required.
Results to assist in survey design
Results from this program will be used to assist the design of follow-up MLTEM surveys, ultimately aimed at identifying conductors for reverse circulation/diamond drill testing.
The majority of the 2,792 square kilometre Rockford project comprises seven contiguous exploration licences and is the subject of a joint venture between Legend (70%) and Creasy Group (30%).
Legend operates and manages the joint venture.
The remaining portion of 262 square kilometres is 100% owned by Legend and includes five exploration licences.