Yeah ferrous metals give a different signal that copper, bronze or aluminium. I’d imagine mines contain all kinds of metals so you can probably ignore some of the signals. Though then there’s also those tiny bomblets that I think have no metal in them whatsoever and detonate from the pressure of your feet.
The sensitivity on the crappy metal detector I have can be adjusted.
Yeah ferrous metals give a different signal that copper, bronze or aluminium. I’d imagine mines contain all kinds of metals so you can probably ignore some of the signals. Though then there’s also those tiny bomblets that I think have no metal in them whatsoever and detonate from the pressure of your feet.