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.
Not all of these slides and debris flows will produce results, but if you search for these while prospecting in your gold producing areas, then you can increase your odds of finding new gold.
Once again the coil was put over the spot but the target was in the pile now. I pinpointed, grabbed a handful of dirt and began sprinkling it over the coil until I heard that mild thud.
I picked up a noticeably heavy, fist-sized chunk of what I thought was a heavy piece of iron. After wiping some of the dirt and clay off, I still didn't know what on earth this object was.
So let’s dive in and see what I can do to convince you that this is the year you should be out staking your own claims.
Many suggestions had some pieces or parts that would work some of the time, but Dredger Dan’s suggestion was, in my humble opinion, the cleanest, cleverest, and most dependable.
The design of metal detectors well-suited for prospecting is an interesting process and not necessarily an easy one to achieve. It is a combination that blends the desires of what prospectors would like, the requirements of sales people and dealers, with the science and physics of what the electronics can achieve.
I decided to dig near it to see if there were any more and immediately uncovered others. In total I found a pocket with over 100 crystals in it. I was hooked.
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