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Mine systems analysis--tertiary channel deposits. The Badger Hill Pit, San Juan Ridge, Nevada County, California.
Johnson-TB; Sharp-WR; Williams-JN
NTIS: PB/226-723, Available for Reference At Bureau Libraries, 1973; :1-77
The objectives of this study were (1) to determine potential alternative mining systems for some of the large Tertiary channel gold-bearing gravel deposits, and (2) to identify areas of technology where further investigation would be merited because of its potential inclusion in a mining system for such deposits. The study involved the development of a mineralized block inventory, an economic block inventory, determination of optimum ultimate mining limits, and a preliminary economic mining system evaluation. Computer programs were developed and utilized for each of the study phases stated. The analysis showed that underground mining of the six-mile deposit was uneconomical, but that potential for an economic mining operation existed when the gravel resources of the channel were considered together with the gold.
Mining; Gold; Gravel; Minerals; Mineral deposits; Economics; Underground mining
NTIS Accession No.
NTIS: PB/226-723, Available for Reference At Bureau Libraries
Page last reviewed: March 11, 2019
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