Ann: Porphyry Drilling Update, Juruena Project, Brazil (Updated), page-7

Not totally wrong... Laymans terms (massive oversimplification but it'll do): gold/copper will typically drop out in the potassic or sometimes parts of the phyllic alteration phase. The chargeability high will be mapping the % pyrite in mainly the phyllic halo or parts of the propylitic. So, if you're lucky, you might poke into the guts of the mineralised guts of a porphyry which would be tucked in, or below the the much larger chargeability anomaly. these sorts of results are par for the course when trying to zone in on porphyry mineralisation (whether it turns out to be mineralised or not!). Looking forward to assays & geochem, maybe even some cheeky vein orientation work (if they release such things). So this is really a "nothing to see here" result. found evidence of phyllic alteration, good, poking around for a mineralised inner zone until find one, disprove one or give up. almost alwast the latter BUT if a junior is lucky enough to snag a mid tier porphyry, the upside is massive. that's the risk we're all taking. though like others, i actually think Halls Creek will be a nice little deposit. not a game changer but very good chance of making some $ in the next few years.

p.s. chargeability high can be plenty of other things 'sides porphyry related... still worth a shot!