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Powerful gold detector

A

Anonymous

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Can anyone tell me of what would be required to be able to detect gold (say large nuggets) at depths of up to 2 metres in mineralised ground. ie is this feasible for a hand held machine.
Any replies would be greatly appreciated.
 
Depending on the size of the nugget, good Induction balance metal detector will work. What has been the most popular and works is the Minelab Pulse induction metal detectors. They run around 3 to 4 thousand dollars each for a SD2200. The reason for PI is the outstanding depth they can reach. IB can't go as deep. The most important thin to remember is that a metal dectector is only as good as the operator. Alot of variables in the field when detecting. Knowledge is power. Also there is a PI out there called Goldscan that seems to be a good dry land PI developed by Eric. If you are looking to go to the beach to detect, Eric has the best PI detectors in the world for this application. Aguastar and Deepstar. PI egnore the salt and mineralization at the beach. Minelab is pretty good on dry land in Australia and USA. I hope others will comment on this question to give you more info. Rick S
 
Maybe Eric can expound more on the particulars of this question, but in order for a detector to detect at 2 meters range, you would need a VERY large coil and a VERY large target. The simple physics of the distance you mention would require an unwieldy sized coil and an unusually large gold nugget to produce the signal (or eddy current) needed for detection.
While PI technology would be more capable of such depths, induction balance would in all probablilty have difficulties in detecting at those ranges in the types of soils that would produce such large nuggets. In other words, ground mineralization would be a major deterent for a VLF-IB type machine.
Ralph
 
Hi Sean,
Two metres is a long way down to detect a metal object, particularly in mineralised soil. You would need a search coil at least a metre in diameter and you won
 
Thanks for the reply. I am just curious as to how far further the current hand held detectors can go.
We would kill for a detector that could achieve a depth far in excess or anything out now - there is still alot of gold down there.
Current Australian laws allow prospectors to only use hand implements - But if I can figure out how to dig it - maybe you could you invent it - sounds fair to me.
Thanks again.
 
Hi Eric,
I think for most of us, if we could be assured that it was in fact a fist-sized gold nugget and not a soda can, we'd dig it with a teaspoon if necessary ! ha ha
Ralph
 
No one answered the question of which is a good detector dor good depth. Are there detectors that serve different uses sucessfully with changing coils, Ie coins and gold nuguts? LaGrande
 
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