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Moving the World's Largest Machine—The Bucyrus 2570W Walking Dragline
August 2003 by Paul McAuley
This project began in early August 2002, when approximately 12 major project forwarders were invited to bid on moving a Bucyrus Model 2570W Walking Dragline from the US to Australia.Fine Gold Panning Without Using Mercury
The technique I will describe is a much safer alternative and it works. It’s a fine-gold panning technique that eliminates the need for mercury amalgamation of most placer samples.
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.
Ask The Experts: How would you go about evaluating a silver deposit?
Any ore grading 32% silver would contain more than 9,000 ounces of silver per ton and be valued at something in the range of $150,000 per ton. Even a few tons of this type of material would be well worth shipping off to a smelter for treatment.
The Bawl Mill
• The dog ate my homework
• Boating in Afghanistan?
Sold: 87-Ounce Nugget
A gold prospector in central Victoria, Australia stumbled across an 87-ounce gold nugget in early February 2015, after his wife told him to head outside to get some air. He had given up smoking a few weeks prior and was getting a bit “grumpy,” she told him.
Picks & Pans: Detecting Micro-Nuggets
I like to play in a big sandbox called the Mojave Desert. I have different ways of getting my kicks. My particular delight is seeing, “How low can I go?” Blame it on too much sun, but there are days I don’t feel like drywashing.
In Pursuit of Gold & Silver in the Sierra Madres—The Plan
In my travels, and my experience with gravity tables, one thing has implanted itself in my mind. What about the tails?
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The Bawl Mill
• House Resources Committee Addresses Environmental Scare-Tactics —by House Resources Committee & Chairman Richard Pombo
• Precious Metals in the Patagonia Mountains
• Over the Divide
• Idaho-Maryland Mine—History Restarted
• Montana Candidate Sees Natural Resources as Path to Recovery
• Judge Rules Against Oregon Miners—Battle Continues
• Lake County "Diamonds"—Renewed Value for an Old Favorite
• Mother Lode Gold, California
• News From the Pacific Legal Foundation
• Melman on Gold & Silver
• Maine to Create Mineral Park
• Mining Stock Quotes and Mineral & Metal Prices
