All Articles
Understanding Hard Rock Mining: Terms and Methods—Part II
July 2004 by Chris Ralph
A better understanding of hard rock mining methods and knowing a little about how these mines work can help the individual prospector to understand reports and stories about both modern and historic mine operations.
Ask The Experts — Please tell me more about the Tullock II rule.
Q: I read in the April 2006 ICMJ’s Prospecting and Mining Journal about the Tulloch II rule. I have not read anything on or about it since. Is there any more written about it? I would appreciate anything you could tell me.
DNI's Black Shale Metals Projects
While much attention in northern Alberta has been focused on the rapidly growing “oil sands,” another story of particular interest to the mining community has been taking shape virtually unnoticed in the same region.
Placer & Lode Gold Deposits
Even though there are many varieties of gold deposits, prospectors often refer to two general types: placer and lode. Some lode examples include...
Silverton's Gold
Within this area, about two million ounces of gold and fifty million ounces of silver have been mined. Faults, dikes, veins and fissures that carry the ore form a concentric radial pattern—like spokes on a wagon wheel—around the caldera core.
Foreign Investment Hits More Roadblocks
Chad, Bangladesh, Peru, Kyrgyzstan and Uzbekistan are the latest in a long list of countries that have become unfavorable toward foreign-owned mining companies.
Piedmont Gold
The Piedmont region of the eastern United States extends for over 800 miles, from Alabama northeast to Pennsylvania. It includes the rolling country between the flat coastal plain to the east and the Blue Ridge Mountains to the west.
Legislative and Regulatory Update
• Assembly Bill 1032
• Cache County v. USFS
• CMA appeals cyanide ban
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The Bawl Mill
• Mining Claim Fees Are Going Up
• Our Readers Say
• Buell Park Pipe, Arizona
• Mines and Money
• Two Nevada Mines Look to Supply Own Power
• Paleontonlogical Resources Preservation Act
• Picks & Pans: Mexican "Edventure"
• Over the Divide
• Flat-Fault Gold in Sonora, Mexico
• Looking Back
• The Fern Mine
• Map Offers Look at Butte's Mining History
• Gold in China
• 2004 National Mining Hall of Fame Inductees
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
