Ann: FRASER RANGE PLATO UPDATE , page-6

It probably also relates to Xserv having pretty well developed IP skills as I seem to remember it being used quite a bit by ENT early on when the Sandfire nearology rush was on.

Think nickel sulfides are classed as a superconductor for EM purposes and they show a strong response.
SIR used EM I think.
What you say make sense, just was expecting a more diagnostic geophys method. Although that expectation probably relates to my opinion that the geochem signature is quite weak as compared to SIR.

Although as you said, it does seem to prove some sort of sulfide body, hopefully not just all pyrite or pyrhhotite.