All Articles
Greenstone Belts in Minnesota
August 2005 by Edgar B. Heylmun, PhD
Greenstone is a dark greenish-black basaltic rock which, along with chloritized schist, forms belts up to 50 miles wide in northern Minnesota, in rocks of Late Archean age. Most belts are 2.6 to 2.9 billion years old.Additional articles that might interest you...
Allied Nevada Reactivates Hycroft Mine
May 2009
Because the gold here is not coarse enough to be recovered in a pan, the deposit was not recognized as holding any significant potential for precious metals until 1908...
Because the gold here is not coarse enough to be recovered in a pan, the deposit was not recognized as holding any significant potential for precious metals until 1908...
China Closing More Than 1,000 Mines
August 2016
It was only a few years ago that China was taxing and limiting quantities of exports for rare earths in an effort squeeze the market, drive up prices and extract the most in the way of income.
It was only a few years ago that China was taxing and limiting quantities of exports for rare earths in an effort squeeze the market, drive up prices and extract the most in the way of income.
Legislative and Regulatory Update
August 2005
• BLM claim fees rise.
• Miners win in Karuk Tribe of California v. USFS
• BLM claim fees rise.
• Miners win in Karuk Tribe of California v. USFS
Ask The Experts
September 2015
Can the public take minerals from a mining claim?
Can the public take minerals from a mining claim?
USFS Roadless Comments Reopened
August 2001
On July 6, 2001, US Forest Service (USFS) Chief Dale Bosworth announced that the roadless rule would be revisited by publishing the following information in the Federal Register. -Ed
On July 6, 2001, US Forest Service (USFS) Chief Dale Bosworth announced that the roadless rule would be revisited by publishing the following information in the Federal Register. -Ed
Detecting: Small Creek Yields Good Gold
November 2016
Most of our gold recoveries have been in the cracks of the bedrock. Hot rocks in the form of dikes cross the creek at various locations, causing us to skip those areas.
Most of our gold recoveries have been in the cracks of the bedrock. Hot rocks in the form of dikes cross the creek at various locations, causing us to skip those areas.
Economic Analysis on Critical Habitat for Bull Trout
May 2004
The US Fish & Wildlife Service has released the economic analysis and reopened the comment period for their proposal to designate critical habitat for the bull trout in 18,469 river miles and 532,721 acres of lake and reservoir habitat across the Western states.
The US Fish & Wildlife Service has released the economic analysis and reopened the comment period for their proposal to designate critical habitat for the bull trout in 18,469 river miles and 532,721 acres of lake and reservoir habitat across the Western states.
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