Commodities
PrimarySilver, Gold
Commodity typeM
Deposit
Model154: Epithermal quartz-alunite Au
Deposit sizeS
Orebody formSEMITABULAR, MUSHROOM-SHAPED
Materials
Ore mineralsArgentite, Bornite, Cerargyrite, Chalcocite, Chalcopyrite, Covellite, Electrum, Embolite, Enargite, Galena, Gold, Pyrite, Silver, Sphalerite, Tennantite, Tetrahedrite
GangueAlunite, Barite, Dickite, Gypsum, Illite, Jarosite, Kaolinite, Sericite
Geology
Host rockSandstone
Associated rockDacite
Tectonic settingAndean Cordillera
AlterationSilicification Occurs In Brecciated Zones, Is Dominant In Upper Parts Of Coipa Norte; Advanced Argillic (Alunite-Kaolinite-+/- Dickite-Quartz) Associated With High Grade Au In Coipa Norte And Farellon, In Deep Part Of Ladera; Occurs As Stockwork Veins; Intermediate Agrillic (Illite-Smectite +/- Sericite) Peripherial To Ore Zones (Some Ag-Rich Lenses In Clays); Vuggy Silica, Dominant Above Ladera Ore Body; Supergene (Jarosite-Goethite +/- Gypsum +/- Barite).
Economic & production
Development statusProducer
Discovery year1981
Identification
Deposit ID10058035
MRDS IDTC03761
Alternate namesCan Can, La Dera, Farellon, Ore Bodies: Coipa Norte, Don Eduardo
RegionSA
Data scoreA
Coordinates-26.83081, -69.26618
References
OVIEDO AND OTHERS (1991)RUIZ, C. Y PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE: SANTIAGO, 334 P.MINING ENGINEERING, 1990 (JULY), P. 667.DIAZ, ET AL., 1980, MAPA METALOGENICO PRONOSTICO DE LA III REGION: CORPORACION DE FOMENTO DE LA PRODUCCION, SANTIAGO (5 VOLS.).ELEVATORSKI, E.A., WORLD GOLD: MINES-DEPOSITS-DISCOVERIES, VOL. 1: NORTH, CENTAL, AND SOUTH AMERICA: MINOBRAS MINING SERVICES.SILLITOE, R.H., 1991, GOLD METALLOGENY OF CHILE - AN INTRODUCTION: ECONOMIC GEOLOGY, V. 86, NO. 6, P. 1187-1205.OVIEDO, L., FUSTER, N. TSCHISCHOW, N., RIBBA, L., ZUCCONE, A., GREZ, E., AND AGUILAR, A., 1991, GENERAL GEOLOGY OF LA COIPA PRECIOUS METAL DEPOSIT, ATACAMA, CHILE: ECONOMIC GEOLOGY, V. 86, NO. 6, P. 1287-1300.CIMRIMINING ENGINEERING, 1990; SILLITOE (1991); OVIEDO AND OTHERS (1991)