History & Geology
Perception of Mining vs. Reality
May 2015 by Chris Ralph

Glaciers and Placer Gold Deposits

Gold From Cemented Gravels
The truth is that cemented gravels are really not all that complex. There is no mystery of how gold grew there or somehow wormed its way into these solid gravels.
Prospecting Homonyms

Strategic Metals—Part II

Residual Placers: An Often Overlooked Gold Source
Because the forces of erosion and gravity tend to carry lighter materials like quartz away more easily, the heavy minerals like gold or silver will tend to be concentrated in the general area around the vein outcrop. These concentrations are what make residual placers so attractive.
Nevada's Silver City Gold District—Part I

PGMs in the United States

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