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Gold From Cemented Gravels

The truth is that cemented gravels are really not all that complex. There is no mystery of how gold grew there or somehow wormed its way into these solid gravels.

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The Silver Islet Mountains of Utah


Apparent fault offset.I 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.

Epithermal Gold and Silver Deposits


Epithermal deposits form in the ground at shallow depths. They are popular with prospectors because can yield very rich deposits and they are widespread in the Western US.

The Verde Copper-Gold-Silver-Zinc District, Jerome, Arizona


When I was a student in the College of Mines at the University of Utah, the Verde district was used as an exploration model for “submarine volcanogenic massive sulfide deposits.” So I looked forward to visiting this district and the town of Jerome in central Arizona in the spring of 2012.

Ganes Creek After The Flood


Doug told me that there had been a 100-year flood that took place in October of 2013 and it washed out part of the mile-long landing strip. It also washed a large, wide gully down below and above the camp.

The Many Facets of Iron


I’ve been fascinated by iron minerals for many years. So let’s take a look at this very interesting and colorful element.

Enrichment of Mineral Deposits by Weathering—Part I


The exact minerals formed in the concentrated supergene deposits depends much on the type of country rock around the deposit and the chemistry of the deposit itself, but if conditions are right, this process will form some rich patches of bonanza ore, in some places valued at thousands of dollars to the ton.

Associated Gold Placers of the Comstock


What many people don’t realize is that the Comstock Lode produced over 8,000,000 ounces of gold…

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