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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.
Historic Mining at Mount Diablo, CA
Located in Contra Costa County in the East Bay region of the San Francisco Bay Area, Mount Diablo was the site of the largest coal mining operation in the state in the last half of the nineteenth century. The northern foothills of the mountain produced nearly four million tons of coal.
Market Spotlight: Platinum in Demand
Platinum has run to record highs this year, but it’s not a rush of demand for wedding bands that has boosted prices. It’s diesel.
Melman on Gold & Silver
…for a change, it is time to turn away from the Trump-Mueller frenzy and concentrate once again on some of the other sources of information which can present us with valuable information related to our precious metals.
Newmont Fined for Fatality
The agency said managers “showed a disregard for the miners’ welfare” and acted with “more than ordinary negligence” before the victim fell through a sinkhole while operating a large loader about 200 feet below the entrance of the mine.
Silver Mining Returning to Texas
Today, a Canadian company is reviving the mine to take advantage of silver prices that have tripled since 2009, giving the few dozen residents still living in the area more action than they’ve seen in decades.
Melman on Gold & Silver
It is my belief that these trends toward rising budgetary and trade deficits, escalating monetary creation and interest rates that are being held at artificially low levels will continue and I believe that further US Dollar weakness has now been built into the system.
There's a First Time for Everyone
...day one was like watching the Gold Rush television show. He furiously worked the nozzle in an up and down fashion that resembled Jack Hoffman sitting on a backhoe.
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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
