Not really beyond the comments that Fig 5 shows a weak conductor...

Not really beyond the comments that Fig 5 shows a weak conductor near the Basil Fault zone - which is not unusual as faults are often weak conductors. The deeper more conductive features at 739200N are just deep EM conductors at the moment - your guess is a good as mine, as we all know that not every EM conductor is necessarily a mineral deposits (or an economically mineable mineral deposit), you really just have to stick a hole in it to see, no other choice really as Mesozoic cover rocks conceal all the geology at surface.