Mine detail: Keystone Mine

Previously called 'Bannon Group Which Includes Claims: MaryCalumetUltimoCharlesNeverthelessEllaGustaveWolfrimeLouieErnestErikaRoswellHagermanDoraInaO.K.GladysMaherEsmeraldaHaldermanHagerman MineOk Mine'

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Location

Lat / long:

32.0929, -110.05844

Resource(M)

Primary:	Copper, Zinc
Secondary:	Molybdenum, Lead, Tungsten, Silver, Gold
Ore:	Bornite, Chalcopyrite, Gold, Molybdenite, Pyrite, Scheelite, Silver, Sphalerite
Gangue:	Garnet
Orebody form:	TABULAR, CHIMNEYS, MANTOS
Discovery year:	1908

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
First production started:	1915
Last production ended:	1958

Geology

Host rock:	Abrigo Formation; Martin Formation; Escabrosa Limestone
Host type:	Shale,Limestone,Dolomite
Associated rock:	Texas Canyon Quartz Monzonite
Associated type:	Quartz Monzonite
Structure:	Nw Tert Block Faulting, Lcret Or Etert N & Nw Trending Folds And Thrust Faulting, N63e Normal Fault Dips 36se; Keystone Fault With A Horizontal Displacement Of About 1200 Ft
Tectonic:	Basin & Range
Alteration processes:	Limestone Is Metamorphosed To Tactite Characterized By Diopside, Tremolite, K-Feldspar, Quartz

References

MRDS	M050006
DEP	10039383
Reference	{Deposit:: COOPER & SILVER, 1964, USGS PP 416.}{Deposit:: COOPER, 1950, ABM BULL 156.}{Deposit:: ROMSLO, 1949, USBM RI 4504.}{Deposit:: KEITH, 1973, ABM BULL 187.}{Deposit:: ABGMT CLIPPINGS FILE.}{Deposit:: LIVINGSTON ET AL, 1967, JGR, V. 72, P. 1361-1375.}{Deposit:: SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: U.S. BUREAU OF MINES SPECIAL PUBLICATION, 334 P.}
Reporter	Peterson, Jocelyn A., Orris, Greta J.