Nugget Halo's


Halo effect makes targets that have been in the ground a long time appear much
larger than they actually are.   Iron will rust and migrate particles into the area
near the iron and make it appear larger.  Copper will corrode and do the same.
Silver tarnishes and spreads out. Gold nuggets are not pure gold. Some are part
gold, copper, silver, lead and maybe some iron in the mix.  All this action over
years and years in the ground make the  nugget easier to see with a  detector.
Ever detect a rusted  tin can  that is almost all gone.  It will actually disappear
as you spread the rust particles.  Anyway the area around the physical nugget
will be responsible for making  it  appear much larger than  it  is and easier to
find.  Once that area is dug and spread out in the dig pile the halo is gone. You
can rebury the nugget and never see it with the same detector at the same depth.
Unless  you leave it there maybe 100 years and let it do its thing again. A simple
experiment you can try is bury 6 pennies in the soil say maybe one at 4 inches,
second at 6 inches, third at 8 inches, forth at 10 inches, 5th at 12 inches, 6th at
14 inches. Now try and find them with your detector. You may be able to see a
few with a VLF type detector.  Users with Minelabs may want to double these
numbers. Now wait a few months and recheck the test area. You'll be surprised
 that now you can see one or two deeper ones because
of the halo being created.


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