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Mine Systems Analysis - Tertiary Channel Deposits. The Badger Hill Pit, San Juan Ridge, Nevada County, Calif.

PB226723

Publication Date	1973
Personal Author	Johnson, T. B.; Sharp, W. R.; Williams, J. N.
Page Count	77
Abstract	The objectives of this study were to determine potential alternative mining systems for some of the large tertiary channel gold-bearing gravel deposits, and identify areas of technology where further investigation would be merited because of their 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 used for each of the study phases stated. Sampling conducted at Badger Hill by the Bureau together with confidential drill hole data provided by the San Juan Gold Co. formed the basic gold values and distribution information from which a deposit model was developed. (Modified author abstract)
Keywords	Mining engineering Mineral deposits Gold Gravel Placer mining Optimization California Economic analysis Badger Hill Pit
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared by Bureau of Mines, Denver, Colo. Div. of Mines Systems Engineering.
Document Type	Technical Report
Title Note	Open file rept.
NTIS Issue Number	197406

Mine Systems Analysis - Tertiary Channel Deposits. The Badger Hill Pit, San Juan Ridge, Nevada County, Calif.

Mine Systems Analysis - Tertiary Channel Deposits. The Badger Hill Pit, San Juan Ridge, Nevada County, Calif.
PB226723

Publication Date	1973
Personal Author	Johnson, T. B.; Sharp, W. R.; Williams, J. N.
Page Count	77
Abstract	The objectives of this study were to determine potential alternative mining systems for some of the large tertiary channel gold-bearing gravel deposits, and identify areas of technology where further investigation would be merited because of their 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 used for each of the study phases stated. Sampling conducted at Badger Hill by the Bureau together with confidential drill hole data provided by the San Juan Gold Co. formed the basic gold values and distribution information from which a deposit model was developed. (Modified author abstract)
Keywords	Mining engineering Mineral deposits Gold Gravel Placer mining Optimization California Economic analysis Badger Hill Pit
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	BUREAU OF Mines, Washington, D.C.
Supplemental Notes	Prepared by Bureau of Mines, Denver, Colo. Div. of Mines Systems Engineering.
Document Type	Technical Report
Title Note	Open file rept.
NTIS Issue Number	197406