Prospecting & Detecting
Ask the Experts
September 2014 by Chris Ralph
• What to prospect with on the Klamath RiverDetectors: Past, Present and Future
Detectors were invented long before I was born, but it was in the 1960s when they started to become an item popular enough to power a fledgling industry. The key development was miniature transistor technology replacing the old fashioned tube technology of the 1950s, making lightweight, affordable detectors possible.
Volume is the Key to Success
While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.
So, Where's The Gold?—Finding Gold Detectors Miss
We decided to run a detector over each piece. If we got a decent signal we placed the piece into a high-grade pile and the rest went into another pile to be worked on later. This high-grade pile wasn’t that large—maybe 25 pounds...
What's In A Name?
The names attached to these areas came about from many sources. Many are easy to see why the name was given while others had a more contrasting note to them.
Twenty Minutes on a Five-inch Dredge
The first thing I realized was this was not a toy—this thing had power and I needed to really pay attention. I got into position, took a deep breath, and pushed that monster into the hard pack.
California to Allow Suction Dredging in 2019?
There are a few questions you will need to ask yourself before you apply for a suction dredge permit from the State Water Resources Control Board.
Continuing Hard Rock Exploration
We had been picking away at it, but the going was mightly slow. Why not use some explosives to advance a little quicker?
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