All Articles
Epithermal Ore Deposits Associated With Tertiary Volcanism—And the Feasibility of Metal Detecting for Them
December 2000 by Jim Straight
Epithermal ore deposits are common in regions of late volcanic activity, especially areas associated with Miocene and later Pliocene extrusive volcanics that have not been deeply eroded since the ore was deposited. Many are simple fissure veins, but stock-works and ore-pipes are also common.
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Sulfides, Selenides and Tellurides
June 2007
The early day miners feared it, and it happened a lot more often than they would have liked: the easily worked rich surface ores they discovered gave way as they mined downward to a vein full of sulfides, base metals and other nasty, rebellious and...
The early day miners feared it, and it happened a lot more often than they would have liked: the easily worked rich surface ores they discovered gave way as they mined downward to a vein full of sulfides, base metals and other nasty, rebellious and...
Picks & Pans: Basic Dry Washing Operations in Gold Placer Mining
September 1999
Some of the advantages of dry washing operations are low overhead costs (inexpensive methods and equipment), and the fact that many mining operations can be conducted by one or two individuals.
Some of the advantages of dry washing operations are low overhead costs (inexpensive methods and equipment), and the fact that many mining operations can be conducted by one or two individuals.
Ask the Experts
April 2014
Bismuth oxide for assaying?
Bismuth oxide for assaying?
Finding Streams of Gold
September 2014
Without knowing or even thinking about it, I had put together a map that showed me a pattern of the ancient Sacramento River channel. I also had a distinct picture of where the ancient channels of several other creeks and rivers were running.
Without knowing or even thinking about it, I had put together a map that showed me a pattern of the ancient Sacramento River channel. I also had a distinct picture of where the ancient channels of several other creeks and rivers were running.
Gold at Dale, California
May 2000
The Dale Mining district is located in the Pinto Mountains, 18 to 25 miles east and southeast of Twentynine Palms, by way of the Twentynine Palms highway and the unpaved Gold Crown road.
The Dale Mining district is located in the Pinto Mountains, 18 to 25 miles east and southeast of Twentynine Palms, by way of the Twentynine Palms highway and the unpaved Gold Crown road.
Miners Making the Rules and Regulations?
October 2015
How would you like it if you could make the actual rules and regulations governing your own business? A dream, right? Well, the existing Federal Mining Law gives a claimholder this ability in the context of organized Mining Districts.
How would you like it if you could make the actual rules and regulations governing your own business? A dream, right? Well, the existing Federal Mining Law gives a claimholder this ability in the context of organized Mining Districts.
The Goodnews Bay Platinum Fields
December 2006
“But first and foremost you have to have the geology. With respect to the geology, the Goodnews Bay placers, which actually were won from the Salmon River drainage and its tributaries, produced on the order of 650,000 ounces,” Foley says.
“But first and foremost you have to have the geology. With respect to the geology, the Goodnews Bay placers, which actually were won from the Salmon River drainage and its tributaries, produced on the order of 650,000 ounces,” Foley says.
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The Bawl Mill
• Letter to the Editor
• Potaro District, Guyana
• World Gold Council Launches $3 Million Ad Campaign
• Prospecting With Color
• Prospecting for Platinum in Wyoming
• Picks & Pans: More Big River Dredging in Northern California
• A Changing Diamond Industry Looks to Canada for Growth
• History of Mining—Bradshaw Mountains, AZ—Part II
• Company Notes
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
