History & Geology
WSGS Releases New Geologic Maps
December 2011 by Scott Harn
The Wyoming State Geological Survey announced ten new geologic maps have been completed and are now available.Gold Refining In The Ancient World
The Bawl Mill
• Do as I say, not as I do...
• By the numbers...
Flood Plain Gold Deposits—What Are They Really?
We just completed a trip to another river, and yes, there was definite movement and redistribution of gravels, and other prospectors have seen this as well.
Large Gold Deposit Types
It is not necessary to have a PhD in geology, but you need to know the basics, so that’s what I am going to try to dig into here—the understandable basics of these gigantic gold deposits.
The Goldfield Mining District -- Then and Now
In 1983, some of the ore yielded more than 2,500 ounces of gold within 30 feet of the surface. The shoot pinched to a narrow vein.
Strategic Metals—Part II
There are literally thousands of abandoned wasterock and ore dumps that dot the United States that could hold many tones of strategic metals.
Heavy Sands Mining
Lately my mind has been involved with group 4 of the transition elements, namely titanium, zirconium, and hafnium. They all have similar chemical properties. Of greatest interest to economic geologists and miners is that these valuable elements often occur together in sands.
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The Bawl Mill
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• Yesterday's Gold—Today's Mine
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• Prospecting Australia—Part III Anatomy of a Nugget Patch in Western Australia
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• Cold Water Gold
• River Dredging vs. Creek Dredging—Part I
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