The Bawl Mill
November 2009 by Staff• Dollars and (non) sense
• Speaking of overspending
• A hare-raising solution
• No longer in the majority
• Feeling a little vulnerable
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.
My intention was to end this discussion with waypoints and routes, then I found USGS maps of the Plainfield Quadrangle.
There are a load of ways to do research, and I’m going to talk about how I do it—maybe you’ll get some ideas that will work for you, too.
- Residents put on hold for frogs
- I’d like to buy a vowel please…
A major diamond mystery has finally been cracked. For 40 years, scientists have tried but failed to apply so much pressure on the hard rocks that they would become something other than diamond. Now researchers reported that they succeeded.
Detectors have been around for decades now. And with thousands of them swinging, many of the best or at least most likely nugget places have seen a swinging coil. The part that amazes me is that so many nuggets still get pulled out of these seemingly pounded places.
The main ore deposits of the Ely district are associated with an east-west belt of altered and mineralized rocks measuring about one mile wide that extends 8 miles westward from Ely.
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