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Gondwana Gold and Diamonds
October 2002 by Edgar B. Heylmun, PhD
Some 250 million years ago, the Earth had just one supercontinent, known as “Pangaea.” For whatever reason, the supercontinent began to break apart. South America and Africa remained joined, as “Gondwana,” until 65 million years ago, when they split apart. The obvious “fit” of South America with Africa was noted by geologists back in the 19th century, but it was not until Alfred Wegener came out with his “continental drift” hypothesis in 1912 that people took note.Additional articles that might interest you...
Pocket Mining Potential in Nevada's East Humboldt Range
September 2009
Since the cycle of water flow is dominated by excessive and sudden “gulley washers” after downpours typical of desert country, there is a tendency to spread gold values out in the alluvial fans and not have placer gold concentrations more typical of big river deposits.
Since the cycle of water flow is dominated by excessive and sudden “gulley washers” after downpours typical of desert country, there is a tendency to spread gold values out in the alluvial fans and not have placer gold concentrations more typical of big river deposits.
Whitehall Mine Foregoing Closure
July 2008
Strong gold prices are making it profitable to keep the Golden Sunlight Mine here open through 2015, company officials said.
Strong gold prices are making it profitable to keep the Golden Sunlight Mine here open through 2015, company officials said.
Newmont's Gold Quarry Mine
October 2005
The Maggie Creek Mining District, of which the Gold Quarry Mine is a part, was first explored in the 1870s. The transcontinental railroad had recently been built through the area. Carlin, a rail stop about 7 miles south of the district...
The Maggie Creek Mining District, of which the Gold Quarry Mine is a part, was first explored in the 1870s. The transcontinental railroad had recently been built through the area. Carlin, a rail stop about 7 miles south of the district...
What's All This Talk About Mining Districts?
April 2015
The main problem with the current scheme is that regulatory agencies often consult with you, then disregard your concerns and do what they want anyway.
The main problem with the current scheme is that regulatory agencies often consult with you, then disregard your concerns and do what they want anyway.
The Bawl Mill
March 2009
• Regulations add fuel to the fire...
• We'd like to give the Postal Service our two cents!
• By the numbers...
• Regulations add fuel to the fire...
• We'd like to give the Postal Service our two cents!
• By the numbers...
Nome Offshore Dredging Creates Challenges
June 2015
The Alaska state government has been trying to keep up with and maybe even stay on top of the situation by studying the problems associated with rapid growth and how to solve them.
The Alaska state government has been trying to keep up with and maybe even stay on top of the situation by studying the problems associated with rapid growth and how to solve them.
MINExpo 2004 Convention Report
November 2004
Unquestionably, the first impression received from touring the exhibition areas at “MINExpo International 2004,” sponsored by the National Mining Association and held at the Las Vegas Convention Center from September 27-30, is one of sheer size. While other gatherings are delighted to host a couple of hundred exhibitors and attract three or four thousand attendees...
Unquestionably, the first impression received from touring the exhibition areas at “MINExpo International 2004,” sponsored by the National Mining Association and held at the Las Vegas Convention Center from September 27-30, is one of sheer size. While other gatherings are delighted to host a couple of hundred exhibitors and attract three or four thousand attendees...
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