Commodities
PrimaryCopper
SecondarySilver, Gold
Commodity typeM
Deposit
Deposit typeReplacement
Model184: Massive sulfide, kuroko
Deposit sizeS
WorkingsUnderground
Orebody formTABULAR
Materials
Ore mineralsBornite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Cuprite, Malachite, Pyrite
GangueQuartz
Geology
Host rockRhyolite
StructureFaults; Planar Shape Of Gouge And Uncrushed Crystals Of Pyrite, Along With Slickenslide Surfaces On Sulfide Bodies Suggest There Faults To Be Pre-Mineral In Age, It'S Further Suggest That They May Have Served As Feeder Channels For Mineralizing Solutions. Forming Eastern Limit Of No. 1 And No. 2 Levels Is A Through-Going Fault With Possible Post-Mineral Dip-Slip Displacement Of 50 Ft. East Side Downdropped.
AlterationPyritization
Economic & production
Development statusPast Producer
Production years1911 - 1913 , 1928 - 1930 , 1939
Identification
Deposit ID10077601
MRDS IDW025304
Alternate namesWarren Bros., Willow Creek Mines Inc.
RegionNA
Data scoreB
Coordinates40.66402, -122.6961
References
ALBERS, J. P., 1965 , ECONOMIC GEOLOGY OF THE FRENCH GULCH QUADRANGLE SHASTA AND TRINITY COUNTIES, CALIF., SPECIAL REPORT 85 , CALIF. DIV. MINES AND GEOLOGY, PG. 35 - 36 .LYDON, P. A. AND O'BRIEN, J. C., 1974 , MINES AND MINERAL RESOURCES OF SHASTA COUNTY CALIF., COUNTY REPORT 6 , CALIF. DIV. MINES AND GEOLOGY, PG. 35 - 37 .LYDON, P. A. AND O'BRIEN; PG. 36 , (SEE REF.)