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Metal-Mineral Identification Utilizing a Detector

Seldom is a metal detector used for ore sampling today. Nevertheless, this procedure still works as all BFO and VLF detectors have a non-conductive mineral zone and a conductive metal zone with a neutral null zone between them.

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Pocket Mining Potential in Nevada's East Humboldt Range


Since the cycle of water flow is dominated by excessive and sudden “gulley washers” after downpours typical of desert country, there is a tendency to spread gold values out in the alluvial fans and not have placer gold concentrations more typical of big river deposits.

Detectors: 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.

House Resources Committee Addresses Environmental Scare-Tactics —by House Resources Committee & Chairman Richard Pombo


As self-serving, so-called environmental organizations ramp up their scare-tactics to raise money, Americans will be pleased to learn that the sky is not falling, nor are their rivers on fire. These are facts to keep in mind when reading the League of Conservation Voters (LCV) partisan “scorecard.” The House Resources Committee report shines sunlight on the shady LCV political rhetoric by outlining facts and accomplishments on current environmental endeavors.

The Swift Shore Mine 1862—Present


Michigan Bluff is an old mining town dating back to the 1850s. It is located in Placer County, about 25 miles northeast of Auburn, just past the town of Foresthill. It sits on the very edge of a mountain, with the Middle Fork of the American River flowing about 1200 feet lower at the bottom of the canyon.

Mining in Sonora, Mexico


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