History & Geology
Green Valley Gold District, Payson, Arizona
March 2016 by W. Dan Hausel
Mohave County, Arizona: The Oatman/San Francisco Mining District
The Oatman/San Francisco Mining District’s historic gold production of 2.2 million ounces of gold since the 1880s makes this area Arizona’s greatest primary gold producing district.
Gold Ores of the Delamar District, Nevada
Even as late as 1906, Delamar was second only to Tonopah and Goldfield in production outshining many better known areas. Since the first discoveries, more than 700,000 ounces of gold have been produced from the mines here.
Gold, Quartz & Chalcedony—Part I
Gold has always been noted to have an affinity for quartz to such a degree prospectors almost always dig on quartz veins in a search for the precious metal.
Exploring Iron Oxide Copper Gold Deposits
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.
Gold in Quartz
Because quartz and gold may be deposited together across a considerable range of temperatures, not all quartz veins are the same, and there are several different types of gold-quartz deposits.
Gold Deposits of the Ivory Coast
Ivory Coast has considerable gold reserves, and this nation has the largest area of greenstone belts prospective for gold in the continent.
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