Greenstone Belts in Minnesota
August 2005 by Edgar B. Heylmun, PhDGreenstone 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.
Down around 10 or 12 inches I hit a large cobble that appeared to be one type of hot rock for this area. I thought bad things about the new technology until I checked the rock.
The ultimate resolution of this apparent contradiction between fundamental news and market performance could provide us with important future clues for gold and silver.
We’ve been fielding quite a few questions lately from subscribers and manufacturers wanting to know if we are going to host another Gold Prospecting and Mining Summit.
There are times when being able to recognize a type of rock can make you a much more successful prospector.
• USFS cost recovery
• Measure 37 affirmed
• Court declines to hear Canyon Resources claim
• Kempthorne nominated to head Interior
Because the old timers were so good at locating the better paying deposits—most of them along clay seams in this particular area—it makes good sense to try and locate these clay lines at old mining sites.
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