How To
Using Geologic Maps
December 2015 by Chris Ralph
In order to see what geologic maps can do, we need to think about what we are looking for.
Wilfley Tables—Repair, Rebuild & Set Up
I researched the Internet and found a number of table makers, but technology has changed in the last 25 years. No one could sell me a kit for a new deck with wooden riffles...
Practical Advice for Milling Hard Rock Ores
The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.
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.
What Do You Need For A Successful Micro-Scale Mine?
For simplicity, I will assume that you wish to make enough profit so that you can comfortably pay your bills using just the profits from the mine.
Tips and Tricks: Preparing Your Dredge Engine for Storage
From this I inferred that engine 2 had a carburetor problem. In this article, I discuss the specific engine/carburetor problem, and the surprising solution to this problem.
Proper Spacing of Placer Sample Sites
The zone of influence of each sample must be carefully considered when deciding how far sample sites should be spaced from each other.
Company Notes
• Homestake Mining Company
• Placer Dome Inc.
• AZCO Mining Inc.
• Guyana Diamond Corp.
• Canadian Mining Company, Ltd.
• Hecla Mining Company
• Pan American Silver Corp.
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The Bawl Mill
• Our Readers Say
• Ask The Experts
• SB 838 and the Salem Witch Hunt
• Small-Scale Hard Rock Production
• Researching Mineralized Areas
• MMAC & PLP Update
• VLF Detector Operating Modes
• Canadian Company Recovers 1,111-Carat Diamond
• Lost Sally's Gold
• Time to File Claims in Southern California
• Colorado Disputes Key Part of EPA Mine Report
• Picking Our Way Through Bedrock
• Mining Stock Quotes and Mineral & Metal Prices
• Melman on Gold & Silver
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• What Is Incidental Fallback?
