History & Geology
Ask The Experts
July 2015 by Chris Ralph
Q: Is there a correlation between fault zones and mineralization of economic metals?Additional articles that might interest you...
Prospecting for Diamonds
January 2013
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
Let’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
Reno's 1872 Time Capsule Includes Gold Rush Lore
June 2019
The Reno Masonic Lodge was built along the railroad tracks back when Ulysses S. Grant was president and shortly after the Comstock Lode of gold and silver was struck in Virginia City.
The Seven Troughs Mining District
September 2016
The favorable geology of the northeastern and central parts of the Seven Troughs Range are the parts most interesting to prospectors. They are underlain by a thick sequence of Tertiary volcanic rocks, mostly rhyolites and andesites.

Sixteen to One Gold Mine: Unique Challenges and Potential Rewards - Pt I
January 2020
Many of the Sixteen to One’s challenges arise from its unusual geology and the pocket characteristics of the ore deposits.
The Strange History of the Utica Mine
January 2016
In the summer of 1854, John Selkirk, a discouraged placer miner who was down on his luck and ready to go back to Massachusetts, tied his mule up in a gulch north of what is now downtown Angel's Camp.

The Long Road to Gold Point, Nevada
September 2013
Apart from the hard rock mines, there are abundant gold-bearing placers, especially in the areas in and around Oriental Wash.

The Verde Copper-Gold-Silver-Zinc District, Jerome, Arizona
October 2012
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.

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