Commodities
PrimaryCopper
SecondaryGold, Silver
TertiaryGypsum-Anhydrite, Iron
Commodity typeB
Deposit
Deposit typeSedimentary
Model59: Skarn Cu
Deposit sizeL
WorkingsUnderground
Orebody formIRREGULAR LENSES
Ore controlGarnetized Shear Zone Between A Footwall Of Felsite Tuff Breccia And Andesite And A Hanging Wall Of Limestone
Materials
Ore mineralsChalcocite, Chalcopyrite, Malachite
GangueCalcite, Chlorite, Garnet
Geology
Host rockLimestone
Associated rockRhyolite · Yerington Batholith;Yerington Batholith
StructureYerington Batholith Responsible For Dist. Of Metasomatic Rocks And Zoning Of Mineral Assemblages. Qtz. Monzonite Porphyry Dike Swarms Within Central Portion Of Batholith Formed Porphyry Cu Deposits, Series Of Faults And Cross-Faults Adding Considerable Complexity To Profound Metamorphism
AlterationAlbitic, Sericitic, Propylitic, Weak Potassic, Oxidation
Economic & production
Development statusPast Producer
First production1870
Discovery year1865
Identification
Deposit ID10103617
MRDS IDM035865
RegionNA
Data scoreB
Coordinates38.9488, -119.22181
References
KNOPF, A., 1918 , GEOLOGY AND MINERAL DEPOSITS OF THE YERINGTON DISTRICT, NEV., USGS PROF. PAPER NO. 114 .ARCHBOLD, N. L., 1969 , GEOLOGY AND MINERAL DEPOSITS OF LYON, DOUGLAS, ORMSBY CO, NEV., NEV. BUREAU OF MINES, BULL. 75 .RANSOM, F. L., 1910 , MINING AND SCIENTIFIC PRESS.EINAUDI, M. T., 1977 , PETROGENISIS OF THE CU-BEARING SKARN AT THE MASON VALLEY MINE, YERINGTON DIST., NEV., ECONOMIC GEOLOGY, VOL. 72 NO. 5 .1910 RECON RANSOME, F. L., MINING AND SCIENTIFIC PRESS1918 GEOLMAP KNOPF, A. PROF. PAPER NO. 1141969 RECON NEV. BUREAU OF MINES, BULL. 751977 RECON EINAUD, M. T., STANFORD GEOLOGICAL SURVEY, ECON. GEOL. VOL. 72 , NO. 5 .COUCH, CARPENTER, 1943 , NEV. METAL AND MINERAL PRODUCTION, UNIV. OF NEV. BULL., VOL. 27 , NO. 4