Mine detail: El Arco

Previously called 'CalmalliDon Carlos'

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Location

Lat / long:

28.05579, -113.38544

Resource(M)

Primary:	Copper
Secondary:	Gold
Tertiary:	Molybdenum
Ore:	Bornite, Chalcocite, Chalcopyrite, Covellite, Cuprite, Digenite, Gold, Molybdenite, Pyrite
Gangue:	Albite, Calcite, Chlorite, Epidote, Feldspar, Quartz, Sericite
Discovery year:	1968

Production

Operation type:	Unknown
Production size:	Large
Development status:	Past Producer

Geology

Host type:	Andesite
Associated type:	Diorite,Diabase
Alteration processes:	Zoned Outwardly: Silicic Core Ringed By Potassic And Propylitic Alteration Zones And Pyrite Halo. No Sericitic (Phyllic) Alteration Present.

References

MRDS	MX00099
DEP	10098728
Reference	{Deposit:: GUILD, PHILIP W., 1981, PRELIMINARY METALLOGENIC MAP OF NORTH AMERICA: LISTING OF DEPOSITS: U.S. GEOLOGICAL SURVEY, GEOLOGICAL SURVEY CIRCULAR 858-B, 72 P..}{Deposit:: PANCZNER, WILLIAM D., 1987, MINERALS OF MEXICO: VAN NOSTRAND REINHOLD COMPANY, NEW YORK, 459 P.}{Deposit:: SALAS, G.P., 1975, CARTA Y PROVINCIAS METALOGENETICAS DE LA REPUBLICA MEXICANA: CONSEJO DE RECURSOS MINERALES PUBLICACION 21 E, P. 186.}{Deposit:: ECHAVARRI P., A., Y RANGIN, C., 1978, EL YACIMIENTO CUPRIFERO DEL ARCO, BAJA CALIFORNIA, SU AMBIENTE GEOLOGICO Y SUS CARACTERISTICAS DE ALTERACION Y MINERALIZACION: UNIVERSIDAD DE SONORA, BOLETIN DEL DEPARTMENTO DE GEOLOGIA, V. 1, NUM. 1, OCT. 1978, P. 1-18.}{Deposit:: COX, D.P., AND SINGER, D.A., 1986, MINERAL DEPOSIT MODELS: USGS BULLETIN 1693, 379 P.}
Reporter	Staude, John-Mark G. (Page, Norman J.), Leonard, Kenneth R.