History & Geology
Greenstone and Gold
September 2013 by Chris Ralph
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.
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.Weathering, Erosion and Placers
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.
Critical Metals: Lithium
Prospecting for lithium deposits can take a number of different directions, because this metal can be extracted from a variety of geologically differnet sources.
The Long Road to Gold Point, Nevada
Apart from the hard rock mines, there are abundant gold-bearing placers, especially in the areas in and around Oriental Wash.
Sierra County Gold—Part I
...this county contained some of the richest placer ground found in all of California and still produces some pretty impressive finds to this day.
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The Bawl Mill
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• 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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• Silver Bull Resources Sees Bright Future for Silver & Zinc
• Twenty Minutes on a Five-inch Dredge
