Gold in Tertiary Gravels
November 2015 by Chris RalphIn some places, semi-continuous sections of riverbed can easily be linked in many places to identify the path of the ancient rivers.
Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
Now it was time for the nerve-wracking part of the job: actually removing anything from the hanging wall we deemed to be in need of removal because it was either loose, could be loose, looked loose, or we felt it was just downright dangerous
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
“The evidence is clear—mineral deposits alone are not enough to attract precious commodity investment dollars...”
Some ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...
With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.
…we cheered and high-fived each other as the ore cart slowly crested the top of the headframe, then picked up a bit of speed on the short downhill section and came to an abrupt halt, ejecting its contents of ore…
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