User:Tillman/John Livermore
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John Livermore (born 1918, San Francisco, California) is an American geologist who has discovered or helped to discover four major gold deposits in northern Nevada. The Carlin deposit, from which the current Nevada gold-mining industry grew, was his first discovery. In 1961, after reading an article by Ralph J. Roberts, Alignment of Mining Districts in North-Central Nevada, and then hearing a talk by Roberts, Livermore, then a Newmont Mining geologist, pursued Roberts' theory to track down the 4 million ounce gold ore body now known as the Carlin mine. The entire Carlin Trend has now produced well over 50 million ounces of gold [1].
Carlin-type gold deposits are characterized by extremely fine-grained gold — gold that cannot be seen by the naked eye, nor concentrated by panning. Nevertheless, several small Carlin-type deposits were discovered in northern Nevada and worked as mines prior to the discovery of the Carlin orebody. John Livermore examined one such deposit at the Standard Mine near Lovelock, Nevada in the late 1940s and believed that other, possibly richer, "invisible gold" deposits remained to be found.
Guided by Ralph Roberts’ ideas, John Livermore and Alan Coope, a fellow Newmont geologist who had a strong background in geochemistry, began an intensive search for “invisible gold.” Success came quickly. In October 1961, they filed the claims that became the Carlin Mine.
Livermore then headed Newmont’s exploration effort in Canada in the 1960's. He returned to Nevada in 1971 to form Cordex Exploration. By 1970, only one other new gold mine, the Cortez mine near Crescent Valley, Nevada, had been discovered and developed in northern Nevada. Exploration had all but stopped. Livermore felt that a return to basic prospecting might lead to further discoveries.
Livermore hired Whit “Dee” DeLaMare, a mining engineer of long experience, to prospect on behalf of Cordex. Dee DeLaMare’s work led to the discovery of the Pinson, Preble, Sterling, and Dee mines and development of the Getchell Trend, second only to the Carlin Trend in Nevada gold production. These successes and higher gold prices fueled a Nevada exploration boom during the 1980s. New mines were found and developed. Nevada gold production continues to expand.
Livermore became wealthy from his discoveries. He has remained active in exploration, and endowed a chair in Geophysics at the Mackay School of Mines [2].