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VMS Deposits in Central Arizona
October 2004 by John Rothermel
Volcanogenic Massive Sulfide (VMS) deposits in the Central Arizona Precambrian volcanic belt occur within a felsic package of volcanic rocks capped by an exhalite unit comprised of cherts, iron formations and siliceous members.
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Ask the Experts
March 2014
Gold in Minnesota?
Gold in Minnesota?
Ask the Experts
December 2013
Why are there no maps of the so-called mining districts?
Why are there no maps of the so-called mining districts?
Remote Throttle Benefits Dredgers
August 2008
I had been waiting my turn somewhat patiently to spend an afternoon at Terry Stapp’s workshop in San Bernardino, California, to build a remote throttle for my dredge engine.
I had been waiting my turn somewhat patiently to spend an afternoon at Terry Stapp’s workshop in San Bernardino, California, to build a remote throttle for my dredge engine.
The Yukon-Klonkide Goldfields—Part II
October 2006
There has been more written on the Klondike Gold Rush than any rush in the history of the world. Some highlights have been written below, a mere grain of sand of information to glean. The price of gold during the 1890s averaged $20.67 per ounce.
There has been more written on the Klondike Gold Rush than any rush in the history of the world. Some highlights have been written below, a mere grain of sand of information to glean. The price of gold during the 1890s averaged $20.67 per ounce.
Melman on Gold & Silver
October 2000
By the time you receive this issue of ICMJ, the November election will be only a few weeks away, and the campaign is finally heating up. Quite surprisingly, Vice President Gore has taken the lead in recent polls from the early front-runner, George "Dubya" Bush.
By the time you receive this issue of ICMJ, the November election will be only a few weeks away, and the campaign is finally heating up. Quite surprisingly, Vice President Gore has taken the lead in recent polls from the early front-runner, George "Dubya" Bush.
Placer Testing with Large Samples
June 2000
Of all the difficult gold placer sites to evaluate, none can compare with trying to dig to bedrock through twenty or thirty feet of soaked overburden through which water is slowly seeping downgrade.
Of all the difficult gold placer sites to evaluate, none can compare with trying to dig to bedrock through twenty or thirty feet of soaked overburden through which water is slowly seeping downgrade.
Melman on Gold & Silver
June 2010
...we cannot help but wonder exactly how nation after nation, already massively in debt and presently burdened with monumental operating deficits, is going to come up with such largesse. We also wonder exactly how going ever-more deeply into debt is going to resolve a debt crisis.
...we cannot help but wonder exactly how nation after nation, already massively in debt and presently burdened with monumental operating deficits, is going to come up with such largesse. We also wonder exactly how going ever-more deeply into debt is going to resolve a debt crisis.
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The Bawl Mill
• Update: Forest Service Interim Rule
• The Guyana Highlands
• Prospecting with a VLF-Type Gold Detector
• Freegold Ventures' Golden Summit Project
• Picks & Pans: Working the Crevices
• Molybdenum
• 2004 California State Gold Panning Championships
• Company Notes
• Why Environmental Groups Prefer Kerry
• The French Mines of El Boleo
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
