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A Guide to Overlooked Gold Deposits—Part IV
December 2003 by Lawrence Dee
Trends are geologic situations in which the geological structure of an area is conducive to the deposition of minerals. These structures are generally fault systems that can be small and localized or can run for miles.
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Ask the Experts
May 2014
How do mines and refiners deal with doré bars?
How do mines and refiners deal with doré bars?
The Bawl Mill
April 2009
• Forgotten words...
• Mixing words...
• Master of words...
• Traveling words...
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• Forgotten words...
• Mixing words...
• Master of words...
• Traveling words...
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Hecla to Reopen Lucky Friday Mine
July 2012
Heclas’s underground Lucky Friday Mine in Idaho is scheduled to reopen following a series of accidents, which included the death of two miners.
Heclas’s underground Lucky Friday Mine in Idaho is scheduled to reopen following a series of accidents, which included the death of two miners.
Mineralized Calderas in Colorado
May 2002
A caldera is a large circular volcanic depression caused by collapse due to the removal of molten magma from an underlying magma chamber. The removal of magma is due to explosive venting of lava and pyroclastic material.
A caldera is a large circular volcanic depression caused by collapse due to the removal of molten magma from an underlying magma chamber. The removal of magma is due to explosive venting of lava and pyroclastic material.
Our Readers Say
February 2014
• Prospecting for Diamonds in Kimberlite by W. Dan Hausel
• Miners referring to their activity as “recreational”
• Prospecting for Diamonds in Kimberlite by W. Dan Hausel
• Miners referring to their activity as “recreational”
Looking Back
November 2003
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Wild and Scenic Rivers Act (P.L. 90-542, as Amended)
April 2007
Just about all of us have heard the term “Wild and Scenic Rivers,” and we’ve likely been on one or several of them in our prospecting ventures. More than once someone has said to me “...but that’s a wild and scenic river.” My first question has always been, “What part of the system is it? Is it classified wild, scenic or recreational?”
Just about all of us have heard the term “Wild and Scenic Rivers,” and we’ve likely been on one or several of them in our prospecting ventures. More than once someone has said to me “...but that’s a wild and scenic river.” My first question has always been, “What part of the system is it? Is it classified wild, scenic or recreational?”
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