Prospecting Underground: Use Caution
April 2011 by Don RobinsonIn underground placer work, the contact point of the bedrock tunnel and the gravel is a very weak point and always has to be timbered. The bedrock here is thin, fractured, and the gravels loose from many years of oxidizing.
Doubters be informed, yes, there is gold in Africa—lots of gold—and all the good and bad that comes with it.
These days they employ the use of metal detectors and carefully scan the shattered rocks, hoping to hear that sound we detectorists love to hear.
Whatever system you plan to use will require a way to safely initiate the explosives from a distance. In this article, we’re going to learn the basics of electric blasting and get a hands-on example…
If you are interested in researching mining claims for any purpose, you will first have to decipher the BLM’s LR2000, a Rube Goldberg database seemingly designed by a 1980s Soviet-era computer hacker.
I have figured out over the years that the winning combination is hard work, persistence, knowledge, and a little luck. This leads me to describe one of my best finds ever, a “honey hole” of placer gold, if you will.
• Making a noisy dredge more quiet
His findings were not exaggerated—after running 82 buckets of gravels in two days we had a remarkable 27.8 grams of gold!
The Bawl Mill • Mining Claims—What to Know Before You File • Small-Scale Concentrating and Recovery Methods • 5th Circuit Ruling May Benefit Miners • Indicator Minerals for Gold & Silver • Mud Men: Pocket Miners of Southwest Oregon Part III • Legislative and Regulatory Update • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Silver Mining Returning to Texas