Mine detail: Toquepala Mine

Previously called 'Pampa NegraToquepala Copper Mine'

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Location

Lat / long: -17.26435, -70.6079

Resource(M)

Primary: Copper, Molybdenum, Silver
Secondary: Gold
Tertiary: Zinc
Ore: Bornite, Chalcocite, Chalcopyrite, Molybdenite, Sphalerite
Gangue: Pyrite, Quartz, Tourmaline
Orebody form: MUSHROOM SHAPED
Discovery year: 1937

Production

Operation type: Unknown
Deposit type: Stockwork
Production size: Large
Development status: Producer
First production started: 1959

Geology

Host rock:Toquepala
Host type:Rhyolite
Associated rock:Toquepala Pluton (Dacite);Yarabamba Subunit (Diorite);Cret-Etert
Associated type:Diorite,Volcanic Breccia (Agglomerate),Dacite
Structure:Incapuquio (Micalaco) Fault N50w With A Possible Sinistral Component Of Shear
Tectonic:Magmatic Arc
Alteration processes:Hydrothermal Alteration - The Zone Of Alteration Is Slightly Larger Than The Ore Body, In Contrast To Most Porphyry Copper Deposits. Alteration Fades Out Gradually Around The Periphery Of The Ore Body. Alteration Is Characterized By Nearly Complete Conversion Of All Rock Types. To Quartz And Mixed Sericite And Clay With Concomitant Destruction Of Original Textures. Areas Of Strongest Alteration Generally Have The Highest Sulfide Content Particularly Of Chalcopyrite

References

MRDSW002039
DEP10068788
Reference{Deposit:: MCMAHON, A. D., 1965, COPPER, A MATERIALS SURVEY, USBM I.C. 8225, P. 63}{Deposit:: MINISTERIO DE ENERGIA Y MINAS, 1969, ASPECTOS GENERALES DE LA METALOGENICA DEL PERU. MINISTERIA DE ENERGIA Y MINAS, LIMA, PERU, 95 P.}{Deposit:: PERU-MAPA METALOGENETICO, 1969, AND, GUIA PARA EL MAPA METALOGENETICO DEL PERU, SOCIEDAD NACIONAL DE MINERIA Y PETROLEO, LIMA, PERU, NOV. 1969}{Deposit:: LAUGHLIN, A.W., DAMON, P.E., AND WATSON, B.N., 1968, POTASSIUM-ARGON DATES FROM TOQUEPALA AND MICHIQUILLAY, PERU: ECONOMIC GEOLOGY, V.63, P. 166-168.}{Deposit:: CLARK, A.H., ET AL, 1990, GEOMORPHOLOGIC ENVIRONMENT AND AGE OF SUPERGENE ENRICHMENT OF THE CUAJONE, QUELLAVECO, AND TOQUEPALA PORPHYRY COPPER DEPOSITS: ECON GEOL 85: 1604-1628.}{Deposit:: CLARK, A.G., ET AL, 1990, GEOLOGIC AND GEOCHRONOLOGIC CONSTRAINTS ON THE METALLOGENIC EVOLUTION OF THE ANDES OF SOUTHEASTERN PERU: ECON GEOL 85: 1520-1583.}{Deposit:: BOGGIO, M.S. 1986, PERU: A MINING COUNTRY, INGEMMET, P. 174-188.}{Deposit:: CAVANAGH, J., AND GLOVER, M., EDS., 1991, THE PERU REPOR* GUIDE TO MINES AND MINERS IN PERU: LIMA, PERU REPORTING SERVICIOS EDITORIALES S.R.L., P. 291-292.}{Deposit:: MINING MAGAZINE, 1993, PERUVIAN COPPER: MINING MAGAZINE, APRIL 1993, P. 181-182.}{Deposit:: ANON., 1994, PERU SPCC PRODUCIRA POR LIXIVIACION 35.000 TON/ANO DE CATODOS: LATINOMINERIA, AUGUAT 1994, P.12.}{Deposit:: 1936 DIREXPL CERRO DE PASCO}{Deposit:: 1945 DIREXPL NORTHERN PERU MINING AND SMELTING CO.}{Deposit:: 1955 DIREXPL NORTHERN PERU MINING CORPORATION}{Deposit:: 1960 COMPILE FRANK SIMONS - UNPUBLISHED REPORT P. 916-925.}{Other Database:: CIMRI}{Production:: 1-5) WORLD MINING, P. 95, SEPT. 1976 ENG. MNG. J., NOV. 1984, P. 62; CAVANAGH AND GLOVER (1991)}{Reserve-Resource:: ESTIMATED BY REPORTER 2/73}
ReporterEricksen, George E., Page, Norman J., Long, Keith R., Goudarzi, Gus H., Theune, C.T.