Commodities
PrimaryGold
SecondaryLead
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Ore controlBest Ore Reported In Serpentine Dike Footwall Where Ankerite Stamed By Mariposite. High-Grade Ore Along Quartz Vein Hanging Wall, Formed By Repeated Offsetting.
Materials
Ore mineralsAnkerite, Gold, Graphite, Talc
GangueQuartz
Geology
Host rockSchist,Serpentinite
StructureFaulting
Economic & production
Development statusPast Producer
Identification
Deposit ID10086481
MRDS IDX024418
Alternate namesFour Acres
RegionNA
Data scoreB
Coordinates39.011, -120.7863
References
LOGAN, C. A., 1936 , GOLD MINES OF PLACER COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 32 , NO. 1 , P. 38 , 39 .ROOT, LLOYD I., 1927 , SACRAMENTO FIELD DIVISION: REPORT 23 OF THE STATE MINERALOGIST, CALIFORNIA DIVISION OF MINES, NO. 3 , P. 250 .CHANDRA, D. B., 1961 , GEOLOGY AND MINERAL DEPOSITS OF THE COLFAX AND FORRESTHILL QUADRANGLES, CALIFORNIA: SPECIAL REPORT 67 , CALIFORNIA DIVISION OF MINES, P. 47 . , P1.3, P1.3SOUTHERN PACIFIC COMPANY, 1964 , MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA, V. 2 , P. 28 .LOGAN ( 1936 ) SOUTHERN PACIFIC COMPANY ( 1961 ).