Description
U.S. Smelting, Refining And Mining Co.
Commodities
PrimaryCopper, Zinc, Silver
SecondaryGold, Bismuth, Arsenic
Commodity typeM
Deposit
Model59: Skarn Cu
Deposit sizeN
Orebody formLENSES
Ore controlMineralization Localized In Favorable Host Rocks Adjacent To Intrusive Rocks.
Materials
Ore mineralsArgentite, Bismuthinite, Bornite, Chalcocite, Chalcopyrite, Copper, Covellite, Silver, Sphalerite, Tetrahedrite
GangueCalcite, Garnet, Goethite, Hematite, Kaolinite, Limonite, Magnetite, Marcasite, Pyrite, Pyrrhotite, Quartz, Rhodonite, Sericite
Geology
Host rockLimestone · Lake Valley;Oswaldo;Syrena;Beartooth
Associated rockDiorite · Pinos Altos Quartz Monzonite Stock;
AlterationOuter 10 To 20 Ft Of Quartz Monzonite Pluton Is A Selvage Of Propylitic Or Argillic Alteration. Diorite Stocks On Margin Of Quartz Monzonite Pluton Are Pervasively Potassic-Altered. Lake Valley, Oswaldo And Syrena Limestones Metamorphosed To Marble. Clastics In Syrena Fm Metamorphosed To Wollastonite-Diopside-Tremolite Hornfels. Beartooth Sandstone Annealed To Quartzite.
Economic & production
Development statusProspect
Discovery year1948
Identification
Deposit ID10013472
MRDS IDD009781
Alternate namesCyprus Pinos Altos
RegionNA
Data scoreB
Coordinates32.88567, -108.2384
References
FINNEL, T. L., 1976 USGS MISC. FIELD STUDIES MAP, MF-779MCKNIGHT, J. F., AND FELLOWS, M. L., 1978 ARIZONA GEOLOGICAL SOCIETY DIGEST, VOL 11, P. 1-8ENGINEERING AND MINING JOURNAL, JUNE 1979, VOL 180, NO 6, P. 35, 39NMBMMR GENERAL FILE DATAOSTERBERG, M.W., ET. AL., 1992, ORE CONTROLS AT THE CYPRUS PINOS ALTOS CU ZN AG SKARN DEPOSIT, NEW MEXICO: SME/AIME PREPRINT 92-13, 11 P.OSTERBERG, M. AND MULLER, P., 1994, GEOLOGY OF THE CYPRUS PINOS ALTOS DEPOSIT: CYPRUS-AMAX UNPUBLISHED REPORT, 29 P.OSTERBERG AND MULLER (1994), P. 3(1,2) OSTERBERG AND MULLER (1994) P. 3-4.