
But..very important question is; how burried precious metalls (or deposits) do affects earth magnetic field? Are there any noticeable variations in gradients on soil surface? Could it be used in accurate locating of precious (coloured) metalls in soil, at all?
With my EPE i alredy had excellent results in locating small ferromagnetic items in soil at very high depths. But no results at all on coloured metals like Au,Ag,Cu,Al.....
So main question remains the same; does...and how burried non magnetic metals affect earth magnetic field and are there any significant changes in emf gradients on soil surface?
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