Hausel, W.D., 1987, Structural management of Archean gold mineralization throughout the South Go greenstone terrain, Wyoming (USA), in The practical Applications of Hint Elements and Isotopes to Environmental Biogeochemistry and Mineral Resources Evaluation, Theophrastus Publications, Athens, Greece, p.199-216. A 2.5-ounce nugget was found on Spring Creek in the 1980s (Robert E. Jones, pers. About 900 ft north of the traverse, a crosscut traverse was dug that pan tested at 0.05 oz/yd3. Composite chip samples in the giant low-grade shear envelope enclosing this primary structure yielded anomalous gold over a width of 300 ft: these samples yielded 0.02 to 0.05 decide (Curran, 1926; Hausel, 1989). A 97-foot composite pattern in this zone assayed 0.023 choose Au and a 30-foot composite assayed 0.07 decide Au (Hausel, 1991a): at today’s gold prices these can be considered economic. Composite chip samples collected inside this bigger construction over a width of many ft ranged from 0.02 to 0.07 ounce per ton gold, thought-about to be doubtlessly economic and comparable to many working gold mines in Nevada.

Much of the gold-bearing gravel in Douglas Creek is 8,500 to 9,000 feet above sea stage. This might counsel, that at an average ore grade of 0.1 decide Au, this zone doubtlessly hosts 3.7 million ounces of unmined gold worth $4.Four billion dollars. Four tons of excessive grade ore was hauled to Springville, Utah and milled yielding an astounding 1,four hundred ounces of gold! Four towns erupted alongside the pediment at South Go. The people who function the South Pass Metropolis historic site are excellent at what they do and needs to be respected for his or her work and information. Without any scientific research of environmental damage brought on by gold panning, it is very unfortunate that some authorities officials and no less than one College of Wyoming faculty member have reported gold panning in Douglas Creek has killed a lot of the fish resulting from all the mud created by panning. Modern-day prospectors working within the Douglas Creek district typically discover coarse gold, some amalgamated gold (gold amalgamated with mercury), platinum and palladium. Under the mouth of Little Beaver Creek the gravel was not as coarse and the drainage opened up into Willow Flat, a 800 by 2000-foot area that had 3 to eight feet thick gravels.

A 14-story dredge, considered one of the most important ever constructed. If we had been able to dig down to bed rock, it can be prudent to pattern the entire vertical stratigraphic part in the drainage, to search for lenses with concentrations of black sand, pebbles and cobbles, as these should present evidence of flash flood events and lead to paystreaks. To show a point, I requested the group to get their gold pans, screens, grizzlies and shovels and sample the dry gravel next to the campground. At this level, the scholars were proven learn how to take away the black sands by placing a skinny cloth round a strong magnet. The black sands stuck to the magnet and when the cloth was faraway from the magnet, the magnetite fell to the ground, and all we had left in the pan was some garnets, tiny gold flakes, and a few items of black sand. But these ore shoots occur primarily in fold closures (known as saddle reefs) that steeply plunge down into the earth to unknown depths (presumably a few thousand feet or extra). I may have to write down concerning the time that the EPA invaded Laramie, Wyoming in house fits - you'll love this one.

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