All Articles
Paleoplacers in the Black Hills
September 2002 by Edgar B. Heylmun, PhD
The Black Hills of western South Dakota are domal mountains that rise to 7,242 feet near Mt. Rushmore National Monument. Annual precipitation reaches 28 inches, enough to support winter sports and pine forests.
Additional articles that might interest you...
Gold in Nevada
August 2002
Over 135 million ounces of gold were produced in Nevada between 1858 and 2001, 107 million of that total being since 1965. Now, the so-called “Silver State” is the leading gold producer in the nation.
Over 135 million ounces of gold were produced in Nevada between 1858 and 2001, 107 million of that total being since 1965. Now, the so-called “Silver State” is the leading gold producer in the nation.
Looking for that Hidden Placer
March 2013
I detect in a wide array of situations. I like to search for places that no one has been to. I really like to find areas that have never been worked at all.
I detect in a wide array of situations. I like to search for places that no one has been to. I really like to find areas that have never been worked at all.
Spanish Police Seize Ship in Treasure Fight
August 2007
Spanish Civil Guards heightened a battle over a $500 million treasure of gold and silver coins from a shipwreck when they seized a vessel belonging to a Tampa, Florida company.
Spanish Civil Guards heightened a battle over a $500 million treasure of gold and silver coins from a shipwreck when they seized a vessel belonging to a Tampa, Florida company.
Tantalum
July 1999
Tantalum is a refractory metal which is non-toxic, ductile; easily fabricated, has a high melting point, is highly resistant to corrosion and is a good conductor of heat and electricity. It has the unique ability to transmit an alternating current in only one direction.
Tantalum is a refractory metal which is non-toxic, ductile; easily fabricated, has a high melting point, is highly resistant to corrosion and is a good conductor of heat and electricity. It has the unique ability to transmit an alternating current in only one direction.
Gold Depositiion and Gradients of Placer Streams—Part II
July 2012
The steeper the gradient is, the more potential erosive power to move gold and other bedload sediments, and the more power to remove obstacles to flow.
The steeper the gradient is, the more potential erosive power to move gold and other bedload sediments, and the more power to remove obstacles to flow.
Wham Hill
February 2008
My year in Australia was almost up and playtime was over. Immigration had pulled the plug and it was time to head back to the States.
My year in Australia was almost up and playtime was over. Immigration had pulled the plug and it was time to head back to the States.
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