Revisiting the Rocker Box
August 2016 by Alex DolbeareThe first location we worked was a small, dry ravine cutting through many mineralized zones in an area where some hard rock mining had taken place in the past.
Within the first 3 hours he and I had found pocket after pocket of gold and couldn't wait to tell Levi of our treasure.
Breaking cemented gravels
Normally the detector he was using would sound off with a definitive high-to-low tone when passed over a piece of gold, which distinguished the gold from the many high iron content "hot rocks," but this one was different...
In 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.
There are both hard rock and beach sand types of titanium deposits, but the hard rock deposits need to be at least 10 percent titanium while the beach sands often are economic with only two or three percent titanium.
Fran, and I had made a practice of turning big boulders in gold producing areas to find some great rewards. Sometimes it was slow and frustrating, but in the end “We got the gold!”
My intention was to end this discussion with waypoints and routes, then I found USGS maps of the Plainfield Quadrangle.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts • Ask The Experts • Can You Recognize Valuable Ores? • Follow Up to "Just One More Time" • The Highs and Lows of Drywashing • Successful Detecting Requires Attention to Detail—Part I • Panning for Gold on Canyon Creek • China Closing More Than 1,000 Mines • Habits, Procedure, and Where Is The Gold? • Exploring A Historic Lode Mine • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver
MMAC & PLP Update