Mine detail: Silver Bell

Previously called ''

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Location

Lat / long: 32.39371, -111.5015

Resource(M)

Primary: Copper
Secondary: Silver
Tertiary: Molybdenum
Ore: Chalcocite, Chalcopyrite, Molybdenite
Gangue: Cuprite
Discovery year: 1909

Production

Operation type: Surface
Deposit type: Porphyry Cu-Mo
Development status: Producer
First production started: 1954

Geology

Host rock:El Tiro and Imperial stocks
Host type:Quartz Monzonite

References

MRDSD000333
MAS40190009
DEP10161929
Reference{Age:: Kendrick, M.A., Burgess, R., Pattrick, R.A.D. and Turner, G., 2001, Halogen and Ar-Ar age determinations of inclusions within quartz veins from porphyry copper deposits using complementary noble gas extraction techniques; Chemical Geology, v. 177, p. 351-370.}{Age:: Barra, F., Ruiz, J., Valencia, V.A., Ochoa-Landin, L., Chesley, J.T. and Zurcher, L., 2005, Laramide porphyry Cu-Mo mineralization in northern Mexico: age constraints from Re-Os geochronology in molybdenite; Economic Geology, v. 100, p. 1605-1616.}{Deposit:: Asarco Inc. 1986 Annual Report, P. 11.}{Deposit:: Hardwick, W.R., Open Pit Copper Mining And Concentrating Methods and Costs, Silver Bell Unit, American Smelting And Refining Co., Pima County, Arizona, U.S. Bureau Of Mines I C 8153, 1963, 72 Pp.}{Deposit:: Huttl, John B., Silver Bell A S and * New Arizona Copper Project Starts Production, Engr. and Mining J., V. 155, N.7, Pp. 72-9.}{Deposit:: Silver Bell - Asarco Makes A Mine At A Known Deposit, Mining World, April, 1958, Pp. 40-5.}{Deposit:: Skillings, David N., Jr., Asarc* Silver Bell Unit,July 25, 1970. Pp. 3-5.}{Deposit:: Engr. and Mining Journal Flowsheet Portfolio, Dec., 1957,P.166}{Deposit:: Sheffer, Herman W., And Lamar G. Evans, Copper Leaching Practices In The Western United States, U.S. Bur. Of Mines I C 8341, 1968, Pp. 10-11, 19-23.}{Deposit:: Sw Pay Dirt,4-92, P.12a.}{Deposit:: Schiffer, Craig. American Metal Market, V104 N28, 2-8-96, P.1.}{Deposit:: Graybeal, Frederick T., Univ. Of Az Press, 1982, P.487.}{Deposit:: Titley, Spencer R., Univ. Of Az Press, 1982, P.167.}{Deposit:: Asarco News Letter, 6-30-89.}{Deposit:: Sw Pay Dirt, 8-90, P,6a.}{Deposit:: The Mining Record, 9-5-90, P.20.}{Deposit:: Engineering And Mining Journal, 9-90, P.111.}{Deposit:: Mining Engineering, 9-90, P.1052.}{Deposit:: The Northern Miner, 11-11-91, P.17.}{Deposit:: Asarco Inc. 1993 10-K, P.A15.}{Deposit:: Sw Pay Dirt, 7-94, P.2a.}{Deposit:: Asarco Inc., 1994 10-K, P. A18.}{Deposit:: The Mining Record, Vol 108., #9, Feb. 26, 1997, P14.}{Geology:: Richard, K.E., and J.H. Courtright, Structure and Mineralization At Silver Bell, Arizona, Aime Trans., 1954, Pp. 1095-1099.}{Geology:: Geology Of The Porphyry Copper Deposits, Southwestern North America, 1966 Pp. 157-163.}{Geology:: Watson, Barry N., Updating The Geology And Structural Ore Controls At Silver Bell, Arizona, Pres. At Arizona Aime Spring Meeting, Mining Geology Div., May 20, 1968, 11 Pp.}{Geology:: Graybeal F T 1983 - Geology of the El Tiro area: in Titley S R 1983 Advances in Geology of the Porphyry Copper Deposits, Southwestern North America University of Arizona Press, Tucson pp 487-505}{Geology:: Lopez J A, Titley S R 1995 - Outcrop and capping characteristics of the supergene sulfide enrichment at North Silver Bell, Pima County, Arizona: in Pierce F W, Bolm J G (Eds), Porphyry Copper Deposits of the American Cordillera Arizona Geol. Soc. Digest 20 pp 424-435}{Geology:: Richard K, Courtright J H 1966 - Structure and mineralization at Silver Bell, Arizona: in Titley S R, Hicks C L 1966 Geology of the Porphyry Copper Deposits, Southwestern North America University of Arizona Press, Tucson pp 157-163}{Reserve-Resource:: Long, K.R., 1995, Production and reserves of Cordilleran (Alaska to Chile) porphyry copper deposits; in Pierce, F.W. and Bolm, J.G., eds., Porphyry Copper Deposits of the American Cordillera, Arizona Geological Society, Digest 20, p. 35-68}{Reserve-Resource:: Browne, Q. J. and Miller, M. A., 2002, Use of geologic parameters for development of low-grade copper reserves, Silver Bell Mine, Arizona; In Society of Mining Engineers Annual Meeting and Exhibit, 2002, Technical Program, Society of Mining Engineers, p. 68.}{Reserve-Resource:: World Mining, Sept., 1977, P. 174.}{Reserve-Resource:: Asarco S.E.C. Form 10-K, 1977.}{Reserve-Resource:: Asarco S.E.C. Form 10-K Report, Dec. 31, 1976, Pp. A3-A5.}{Reserve-Resource:: Asarco 1993 Ann. Rept. P. 5.}{Reserve-Resource:: Asarco 1981 Form 10-K Annual Report, 1982, P. 20.}{Reserve-Resource:: Asarco 1986 Sec Form 10-K Report, P. 11.}{Reserve-Resource:: Asarco Inc. 1995 Annual Report, P.7.}
ReporterHite, Alan G.