Enrichment of Gold Veins
November 2000 by Edgar B. Heylmun, PhDMost of the world's great gold mines are in secondary (supergene) enrichments in veins and stockwork, brought about by physical and chemical processes.
It is not necessary to have a PhD in geology, but you need to know the basics, so that’s what I am going to try to dig into here—the understandable basics of these gigantic gold deposits.
In May, 2016, the Andersons received a letter from Steve Niemela at the Oregon Department of Fish and Wildlife requesting access to their property to conduct surveys for “foothill yellow-legged frogs and other amphibians.”
The nugget was cast aside with larger rocks during the screening process, but it was found later by an employee...
Plans for 100 new nuclear power plants around the world have pushed the price of uranium skyward and set off a frenzy of exploration in western Colorado and Utah.
A few quick calculations show that approximately 11 tons of gold are lost each year just in the manufacture of new cell phones.
When you think about the extremes to which a miner will go to get a little gold, it occurred to me beach gold could be "easy pickings."
The Bawl Mill • Our Readers Say • The Assay of High Iron Gold Ores • The Patch • History of Mining—Bradshaw Mountains, AZ (Part I) • Picks & Pans—The Green Rock, Rattlesnakes, Good Gold and Ruth's Mine • The Oretron • Silver Hill, North Carolina • Residual, Lateritic and Gossan "Soils" as Potential Nuggetshooting Sites • Hardrock in Downieville • Looking Back • Company Notes • Gold in Northern Baja California • California State Gold Panning Championship Results • Melman on Gold & Silver • V.P. Contender Addresses Mining Show