The gold rushes of the 19th century have long since ended, but there are still plenty of places you can hunt for the precious metal using a shovel, pan, metal detector, and more. In fact, recreational ...
Interesting Engineering on MSN
Helium isotope could help pinpoint location of gold deposits that originate in deep Earth
The proportion of deep-sourced helium and the temperature of the mineralising fluids appear to correspond to the size of the ...
A new satellite analysis from U.S. think tank the Stimson Center has identified 517 suspected mines along rivers in Laos, ...
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