Mine detail: Pinos Altos Mine

Previously called 'Cyprus Pinos Altos'

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Location

Lat / long:

32.88567, -108.2384

Resource(M)

Primary:	Copper, Zinc, Silver
Secondary:	Gold, Bismuth, Arsenic
Ore:	Argentite, Bismuthinite, Bornite, Chalcocite, Chalcopyrite, Copper, Covellite, Silver, Sphalerite, Tetrahedrite
Gangue:	Calcite, Garnet, Goethite, Hematite, Kaolinite, Limonite, Magnetite, Marcasite, Pyrite, Pyrrhotite, Quartz, Rhodonite, Sericite
Orebody form:	LENSES
Discovery year:	1948

Production

Operation type:	Unknown
Production size:	None
Development status:	Prospect

Geology

Host rock:	Lake Valley;Oswaldo;Syrena;Beartooth
Host type:	Limestone
Associated rock:	Pinos Altos Quartz Monzonite Stock;
Associated type:	Diorite
Alteration processes:	Outer 10 To 20 Ft Of Quartz Monzonite Pluton Is A Selvage Of Propylitic Or Argillic Alteration. Diorite Stocks On Margin Of Quartz Monzonite Pluton Are Pervasively Potassic-Altered. Lake Valley, Oswaldo And Syrena Limestones Metamorphosed To Marble. Clastics In Syrena Fm Metamorphosed To Wollastonite-Diopside-Tremolite Hornfels. Beartooth Sandstone Annealed To Quartzite.

References

MRDS	D009781
DEP	10013472
Reference	{Deposit:: FINNEL, T. L., 1976 USGS MISC. FIELD STUDIES MAP, MF-779}{Deposit:: MCKNIGHT, J. F., AND FELLOWS, M. L., 1978 ARIZONA GEOLOGICAL SOCIETY DIGEST, VOL 11, P. 1-8}{Deposit:: ENGINEERING AND MINING JOURNAL, JUNE 1979, VOL 180, NO 6, P. 35, 39}{Deposit:: NMBMMR GENERAL FILE DATA}{Deposit:: OSTERBERG, M.W., ET. AL., 1992, ORE CONTROLS AT THE CYPRUS PINOS ALTOS CU ZN AG SKARN DEPOSIT, NEW MEXICO: SME/AIME PREPRINT 92-13, 11 P.}{Deposit:: OSTERBERG, M. AND MULLER, P., 1994, GEOLOGY OF THE CYPRUS PINOS ALTOS DEPOSIT: CYPRUS-AMAX UNPUBLISHED REPORT, 29 P.}{Production:: OSTERBERG AND MULLER (1994), P. 3}{Reserve-Resource:: (1,2) OSTERBERG AND MULLER (1994) P. 3-4.}
Reporter	Menzie, David, Long, Keith R.