Commodities
PrimaryGold
TertiaryPlatinum
Commodity typeM
Deposit
Model273: Low-sulfide Au-quartz vein
Deposit sizeM
WorkingsSurface/Underground
Orebody formVEIN
Ore controlFractures
Materials
Ore mineralsGold, Pyrite, Silver
GangueQuartz, Talc
Geology
Host rockQuartzite
StructureMelones Fault Zone
Tectonic settingSierra Nevada Foothills Accreted Terranes
AlterationCarbonate, Albitic
Economic & production
Development statusPast Producer
Identification
Deposit ID10086500
MRDS IDX025318
Alternate namesAlta
RegionNA
Data scoreB
Coordinates39.45989, -120.85881
References
MCCULLOCH, W.C., OESTERLING, W.A., SPURCK, W.H., AND TISCHLER, M.S., 1964, MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA: SUMMARY OF GEOLOGICAL SURVEY OF 1955-1961: SOUTHERN PACIFIC COMPANY, V. 2, P. 37.AVERILL, C.V., 1942, MINES AND MINERAL RESOURCES OF SIERRA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGYU, V. 38, NO. 1, P. 33, 35, 62.FERGUSON, H.G., AND GANNETT, R.W., 1932, GOLD QUARTZ VEINS OF THE ALLEGHANY DISTRICT, CALIFORNIA: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 172, P. 98-101, PL. 15.J.K. BOHLKE, 1982, WRITTEN COMMUN. TO N.J PAGE, U.S. GEOLOGICAL SURVEYLOGAN, C.A., 1941, MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37, NO. 3, P. 374-408, 425-436, 441-468.FERGUSON AND GANNETT (1932),, AVERILL (1942)