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Gondwana Gold and Diamonds

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.

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The Phoenix Gold Mine: A Brief History


The Phoenix Gold Mine is located approximately 7 miles south of Concord, North Carolina, and was discovered in about 1836, some 37 years following the first discovery of gold in the United States and a few years following the discovery of gold in quartz veins by Joseph Barringer.

The Highs and Lows of Drywashing


We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.

Gold Ores of the Delamar District, Nevada


Even as late as 1906, Delamar was second only to Tonopah and Goldfield in production outshining many better known areas. Since the first discoveries, more than 700,000 ounces of gold have been produced from the mines here.

What To Do When Gold Recovery and Assay Values Differ


Before going into an analysis of the ore composition, two other major factors will affect the result. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.

Gold in Guatemala


The Central American nation of Guatemala is better known for civil unrest, earthquakes, and volcanic eruptions than it is for gold. However, there is gold in the country, and there are undoubtedly many undiscovered deposits in the jungles and rainforests.

Prospector's Guide to Rock Breaking and Blasting


The holes were overloaded with explosives, but I didn’t know it. I was just a green mining engineer fresh out of school and told to watch as the experienced miners set the charge.

The Rest of the Story—Detecting With Ray Mills


Ray followed up by detecting the same area and I was happy to see that he did not find any good targets in the same line. So far so good.

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