hAyyoUinAU said:
So the PI's are missing fine gold that the VLF's will pick up????
I am pretty sure once Pulse Induction came in it re opened the gold fields after they were hammered by the VLF era.
On benign ground maybe, but my experience is most gold bearing areas are very high mineralised.
Doesn't work like that where I go, good luck swinging any VLF around there. Unless you like a crazy detector going off on anything and everything.
PI territory.
This Topic was not created for the purpose of VLF vs PI.
The VLF "era" was prior to the modern LF detectors, these coming at the same time as multi-sample PI's. Of course much deeper and smaller gold was discovered from then with (modern multi-sample) PI's, and the LF's were (still are) largely ignored in Oz. Yes, using an LF will be noisy, especially with the high gain and threshold needed to see small gold, discouraging most from trying, and leading to a school of thought that PI's are the Holy Grail. However, even on the noisiest ground, tracing the black sands can be quite successful.
I poke around Wedderburn, and here in SA, and with proper use of the Vsat,the only place the GMT fails is around silver/lead/zinc deposits. But even then it will still trace the black sands. For trashy areas I use my Compass 94B, totally ignoring all but large or galv iron. LF's, even dinosaurs like this,(100kHz IB) still have their place on the goldfields.
My interperatation of the re-opening of the goldfields was the renewed vigour and exponential amount of detectorists as much as the extra depth of the PI's.
PI "territory" ??....really? It seems you are the one with a bias.
Much info on timing "holes" in PI's can be found at Geotech.
I did not try to make this a (V)lf vs PI, and yes, " good luck" will help no matter what you swing, but knowing your machine and area will be much more helpful.
The only other suggestion I could make about invisible gold is the shape of it-perhaps reflecting the signal off itself. It is known a gold ring is detectable at further distance once the circle is cut.
Perhaps this can explain it.?