Gondwana Gold and Diamonds
October 2002 by Edgar B. Heylmun, PhDSome 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.
From the mid-1850s and even into the early 1900s, Northern Sierra County boomed with mining activity. This area was flooded with miners, establishing such towns as LaPorte, Gibsonville, Spanish Flat, Whisky Diggings...
• Rock Creek mine approved again: environmentalists file another lawsuit
• Great Basin Mine Watch losing appeal
• Roadless Rule declared illegal again by Federal Court
• Off-highway vehicle restrictions in North and South Dakota and Montana
• Comments needed for new off-road emission and fuel standards
• California administration moves to block mining; governor faces recall
• A few pending bills...
• Washington State copies California's wayward regulations
The Bureau of Land Management announced an increase in location filing fees and annual maintenance fees for unpatented mining claims, mill sites and tunnel sites.
The 100-yard restriction in SB838 actually applies to all motorized mining for the purpose of extracting gold, silver or any other precious metal that results in the disturbance of vegetation.
Vancouver, British Columbia, became the focus of the international mining community for five exciting days in late January as two conventions catering to the precious metals mining community were held just blocks apart from each other. And, while they both had differing emphases, each convention attracted unprecedented numbers of participants.
The Bawl Mill • Our Readers Say • Placer Gold in Idaho • Working the Belmont Mine Butte, Montana—1953 • Simple Sluice Design • Cobalt and Nickel in Missouri • Sunshine Mine Video Brings Back Painful Memories • Hardrock Detecting • Gold Garbage: Scams New & Old • Company Notes • Picks & Pans: Confessions of a Professional Nuggetshooter • Looking Back • Ghost Towns of Washington County, Utah • The Fire Within • 2002 California State Gold Panning Championships—Foresthill, California • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver