THE DRILL SERGEANT: Legend Mining (ASX: LEG) has commenced aircore drilling commenced at the company’s Rockford project in the Fraser Range of Western Australia.
Legend Mining said the 65-hole program will focus on multiple targets at Area D and immediate surrounds.
The company explained its exploration focus had been drawn back to Area D following a review of petrology results from diamond drilling completed in July 2016.
Of interest was a drill core sample from 626.8 metres in diamond hole RKDD00 that displayed disseminated pyrrhotite/chalcopyrite/pentlandite of magmatic origin in a cumulate textured olivine bearing ultramafic.
Legend Mining considered these to be positive factors that indicate Area D could potentially be in a favourable environment for nickel-copper mineralisation.
Previous exploration at Area D involved extensive moving and fixed loop electromagnetic surveying with eight conductors (D1-D8) identified, seven of which were tested with RC/diamond drilling.
This activity covered a three kilometre by two kilometre area around a discrete gravity high.
Legend indicated the current aircore program aims to extend the coverage to an area of approximately 7km by 5km as well as testing other aeromagnetic lows and highs.
“The drilling will provide valuable information on the regolith depth/profile, basement lithologies and the litho-geochemical signature of the basement rocks,” Legend Mining said in its ASX announcement.
“It will also provide data to enable selection and prioritisation of areas for the next phase of our innovative high-power EM surveys.
“The program is estimated to take three to four weeks to complete with assay results expected four weeks later.”