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History & Geology

Greenstone and Gold

Contacts, faults and zones of weak rock are all places that can act as a pipeline to convey gold-bearing fluids, leading to valuable deposits.

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Undiscovered Placer Deposits in Alaska


These conditions don’t just apply to Alaska and the Yukon; they apply to western Canada and even to the mountainous western United States.

Gold Deposits of Montana


Historically, Montana has been an important gold producer, in terms of both lodes and placers, and it still produces gold for the prospector today.

Enrichment of Mineral Deposits by Weathering—Part I


The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.

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The big interest to prospectors thinking about the effect of erosion is not what might happen long into the future, but what they might find in the rivers later this summer when the water levels go down.

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Apart from the hard rock mines, there are abundant gold-bearing placers, especially in the areas in and around Oriental Wash.

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The Bawl Mill   • Ask the Experts   • Ask the Experts   • Ask the Experts   • The Long Road to Gold Point, Nevada   • What, Where and How for the New Prospector   • Proper Spacing of Placer Sample Sites   • Hunches, Choices and Guesses   • 12-Year-Old Unearths Large Diamond   • Time for a New Approach: Detecting Float Gold   • Carissa Gold Mine Comes Back to Life   • Gold in Beatty, Nevada   • Cripple Creek Gold Mine Exceeding Expectations   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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Legislative and Regulatory Update   • Silver Bull Resources Sees Bright Future for Silver & Zinc   • Twenty Minutes on a Five-inch Dredge

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