Garrett Electronics - trusted by real miners & prospectors!

Magazine

All Articles

Greenstone Belts in Minnesota

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.

Online access required. Please .

Add a Comment

Additional articles that might interest you...

Tales of California Gold Discoveries 1st in a Series—Yankee Jim's


Most everyone has heard the term “gold is where you find it’” and probably have read how James Marshall, in 1848, while inspecting the mill-race ditch that had been dug to supply water for the saws at the sawmill that he was building for John Sutter, ended up finding the first pieces of gold within the ditch along the South Fork of the American River...

Update on Oregon, Idaho and California Suction Dredge Permits


As expected, the State of Oregon has proposed a new general National Pollutant Discharge Elimination System (NPDES) permit that is considerably more restrictive than the one that is currently in effect

Critical Metals: Antimony


I’ve been taking a look at the mining and uses of a number of critical metals in series of articles, and it’s time to take a look at antimony.

BLM Filing Requirements for Small Miners' Waiver


If you file for a waiver of any kind, except under the provisions of the Soldier's and Sailor's Relief Act, you must file either a notice of intent to hold or an affidavit of labor by the December 30th immediately following the September 1st waiver filing.

Exploration Drilling


Selected excerpt from USDA Forest Service Technical Report:
Anatomy of a Mine from Prospect to Production

Company Notes


Barrick Gold's Golden Sunlight mine; Everton Resources, Globestar Mining search for gold and copper in the Dominican Republic; NovaGold Resources' Galore Creek Project

Over the Divide


Virginia Elvira Russell
(Mining Grandma of Humbug)
March 4, 1999

Subscription Required:
The Bawl Mill   • Our Readers Say   • The Paradox Basin—Part II   • A Sleeping Giant   • Buying a Used Gold Dredge   • Looking Back   • Gold in Vermont   • Picks & Pans: Prospecting on Perry Creek   • 9th Circuit Court Hears Pilgrim Family Case   • The First Mine in America   • National Mining Hall of Fame to Induct Five   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

Free:
Legislative and Regulatory Update

Advertisements

Precious Metals Recovery plants and equipment
Fighting to keep public lands open to the public
Specializing in the processing of precious metal ores!
Watch prospecting shows on your computer right now
Free Online Sample Issue