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The Bombarded 38' Parallel
August 2002 by Edgar B. Heylmun, PhD
A 1,200-mile long east-west zone, containing unusual geologic features, has been recognized in the eastern half of the United States for over 100 years. It coincides, in a general way, with the 38° parallel. There are as many opinions on the origin of the features as there are geologists. Most of the features are circular or oval in form, and some are concealed by younger rocks. They are found in 8 states, from Kansas east to Virginia.Additional articles that might interest you...
Xmet Aims for One Million Ounces
March 2012
The beautiful province of Quebec, known in French as “La Belle Province,” is not only famous for its scenic attractions and world-renowned cities such as Montreal and Quebec City, but also as being one of the most attractive places for mining...
The beautiful province of Quebec, known in French as “La Belle Province,” is not only famous for its scenic attractions and world-renowned cities such as Montreal and Quebec City, but also as being one of the most attractive places for mining...
The Bawl Mill
February 2013
• Distaster bill is a disaster
• By the numbers
• Image isn't everything in Illinois...
• Distaster bill is a disaster
• By the numbers
• Image isn't everything in Illinois...
Gold Deposits in Skarn
July 2003
Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.
Skarn consists of coarse-grained calcium, magnesium, iron, and aluminum silicates formed by hydrothermal solutions, which replace limestone or dolomite near the contact with an igneous intrusion. The contact metamorphism is usually caused by an intrusion such as quartz monzonite, granodiorite, or similar rock type, which may or may not be mineralized.
Remote Mining Camps of Yuma County
October 2006
The remote desert of southwestern Arizona was an attraction only because of the gold and other minerals that were found there. Certainly the weather was not a draw! The early mining days were tough—the mines were a long way from supplies, and hostile Indians made travel in the area extremely dangerous.
The remote desert of southwestern Arizona was an attraction only because of the gold and other minerals that were found there. Certainly the weather was not a draw! The early mining days were tough—the mines were a long way from supplies, and hostile Indians made travel in the area extremely dangerous.
Ask the Experts: Something for everyone...
August 2012
Q: Can you suggest some family and dog friendly vacation spots in California where I can also do some sniping?
Q: Can you suggest some family and dog friendly vacation spots in California where I can also do some sniping?
Investors Hope to Revive Idaho Gold Mine
June 2001
A small group of investors led by retired businessman Ray Bohn is trying to revive a remote Idaho gold mine shut down since 1942.
A small group of investors led by retired businessman Ray Bohn is trying to revive a remote Idaho gold mine shut down since 1942.
Looking Back
March 2007
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
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The Bawl Mill
• Washington Department of Fish & Wildlife Raises Harassment of Miners to a New Level
• Oregon Miners File Suit Against Fisheries Service
• BLM Land Swap Deal Raises Eyebrows
• Gold in Nevada
• The Greenhorn
• Striking Gold
• Picks & Pans: The Trophy Hunt
• Corner Country Gold
• Something to Consider When You Go Dredging
• Western Mining Artifact Collectors Show
• Rattlesnakes
• The Gold Hill and Iowa Mine 1895-1938
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
