Description
Ontario Silver Mining Co.
Commodities
PrimaryLead, Zinc, Silver
SecondaryCadmium, Antimony, Copper
Commodity typeM
Deposit
Deposit sizeY
WorkingsUnderground
Orebody formIRREGULAR, ERRATIC POCKETS AND VEINS
Ore controlFault And Bedding Control
Materials
Ore mineralsGalena, Sphalerite
GangueCalcite, Pyrite, Quartz
Geology
Host rockQuartzite,Sandstone,Limestone · Humbug Formation Ls., Sandy Ls., Quartzite, Calc. Ss
StructurePark City Anticline - Ore On East And West Limbs, Ontario Fault - Vein, Hawkeye And Number Nine Faults
Economic & production
Development statusProducer
First production1895
Discovery year1868
Identification
Deposit ID10073159
MRDS IDW019006
RegionNA
Data scoreB
Coordinates40.62494, -111.48967
References
BARNES, M. P., SIMOS, J. G., 1968, ORE DEPOSITS OF THE PARK CITY DIST. WITH A CONTRIBUTION ON THE MAYFLOWER LODE; IN RIDGE, J. D. ED, ORE DEPOSITS OF U. S. 1933 - 1967, V. 2 P. 1102JAMES, A. H., 1973, LEAD AND ZINC RESOURCES IN UTAH; UTAH GEOL. AND MINERALOGICAL SURVEY, SPECIAL STUDIES 44, JULY 1973 P. 26 - 32WHITE, L., 1975, ONTARIO PROJECT KEEPS MINING ALIVE IN UTAH'S HISTORIC PARK CITY DISTRICT; ENGIN. AND MINING JOUR. 2 - 76 P. 67 - 72GRANT, S. K., 1966, METALLIZATION AND PARAGENESIS IN THE PARK CITY DIST., UTAH, PHD THESIS, 183 P.1971 DIREXPL PARK CITY VENTURES - NEW ORE FOUNMINING RECORD 7-9-75. JAMES, A. H., 1973, PB - ZN IN UTAH P. 29E/MJ, FEB. 1976. P. 67