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Geochemistry as a guide in underground exploration for mercury ore at the New Idria mine, San Benito County, California
(University of Nevada, Reno, 1972)
The ability to use geochemistry as a guide in underground exploration for mercury ore has been studied at the New Idria Mine. The results of this study indicate that geochemistry can be used as a guide for the underground ...
Mining economics of copper-zinc deposits in the Foothill copper belt of the Sierra Nevada in California
(University of Nevada, Reno, 1971)
Cut-and-fill mining of a 400,000 ton deposit is proposed for the Foothill Copper Belt. It is 90 percent certain that a rate of return of at least 20 percent can be earned.