The Silver Islet Mountains of Utah
January 2014 by Alan J. ChenworthI set up my dry washer on the north side of the cut and sampled the bed rock and dumps around me. As I was only sampling, I ran for 20-30 minutes, shoveling from a variety of areas.
While both zinc and lead deposits also are enriched by the surface weathering process, in part two we will look at the enrichment process for copper and also gold deposits, and at the interpretation of leached outcrops to figure how rich the concentrated deposits below them may be.
If developed with metal detecting in mind, this virgin ground could be a bonanza for nugget hunting.
The excitement over IOCG deposits began with the discovery of a monster deposit at Olympic Dam in Australia in 1976. The discovery was accidental as the operator was searching for strata-bound copper deposits.
Potholes in bedrock can trap placer minerals and even be glory holes. They are, at least, interesting geologic phenomena, and at best, a treasure trove of gold nuggets.
Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.
This mine was a real wonder of engineering, and the water supply and drifts had to be carefully managed to keep it in operation. In fact, it didn’t close due to lack of gold, but instead closed with the fall of the Roman Empire.
I (enjoy) Twain’s description of a gold mine, “A hole in the ground with a liar at the top.” Some humor here? You bet, but I’m sure he meant it to be a real eye opener as well.
The Bawl Mill • Ask the Experts: Big rocks or small cobbles? • Ask the Experts: Quartz rock and the chance of gold in my area of New Hampshire? • Ask the Experts: Equipment and gold locations in Colorado • Ask the Experts: Silent partners and mining—is it worth the risk? • Sierra County Gold—Part II • Gold Placers of the Kenai Peninsula, Alaska • Alternative Gold Leaching Methods • Over the Divide • Prospecting for Diamonds in Kimberlite • Additional Note Regarding "Strategic Metals—Part II" • Take a Kid Detecting • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices