How To
Enrichment of Mineral Deposits by Weathering—Part I
March 2016 by Chris Ralph
The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.
Operation And Application Of Magnetometers
The technology used in these devices has advanced greatly in the last century. Many different types of physical effects are used to measure these magnetic fields and we will briefly look at some of these.
Using Vegetation and Soil Conditions as Prospecting Aids
Wouldn’t it be great if you could know if there is gold in the ground without setting foot on the ground? Well you can, to a certain extent, if you can recognize mined ground from unmined.
Crumb Hunting With A VLF Detector
Chris got a nice target signal on the edge of rising bedrock, but still in a low, but washed area. After breaking up the bedrock, he recovered several pieces of gold amounting to almost three pennyweight.
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• Two questions: Is fool's gold magnetic? And how do you go about filing a miing claim?
The Subsurface Suction Dredge
The problems of the submersible dredge tube are addressed by the subsurface dredge, where the enclosed sluice recovery tube is suspended from a flotation assembly...
Resurrecting An Old Hard Rock Mine—Gold At Last!
We’ve been busy with a plethora of projects, all aimed at gathering gold into a pile big enough to brag about. We’re not there yet, but I’ll show you some of the interesting projects we’ve completed since we talked last.
New Research Tool for Miners in Wyoming
The Wyoming Geological Survey released an online interactive map...
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The Bawl Mill
• Legislative and Regulatory Update
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• How to Stake Your Own Mining Claims—Part I
• Addressing EPA Overreach: What Dredgers Need to Know
• Green Valley Gold District, Payson, Arizona
• Nevada's Silver City Gold District—Part I
• Alaska: Kodiak Islands Mineral Resources
• Melman on Gold & Silver
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