Mine detail: St. George Claim

Previously called 'Leopold'

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Location

Lat / long:

32.09123, -110.05899

Resource(M)

Primary:	Copper, Zinc
Tertiary:	Molybdenum, Tungsten
Ore:	Bornite, Chalcopyrite, Molybdenite, Scheelite, Sphalerite
Gangue:	Garnet
Orebody form:	BEDDED

Production

Operation type:	Unknown
Deposit type:	Replacement
Production size:	Small
Development status:	Producer
First production started:	1891

Geology

Host rock:	Abrigo Formation; Martin Formation
Host type:	Shale,Limestone,Dolomite
Associated rock:	Texas Canyon
Associated type:	Quartz Monzonite
Structure:	Tertiary Block Faulting Trending Nw ; Reg.Trends: Late Cretaceous Or Early Tertiary N And Nw Trending Folds And Thrust Faults Overriding To Ne
Tectonic:	Basin And Range
Alteration processes:	Garnetization And Lime Silicates, Oxidation Of Ore

References

MRDS	M050004
DEP	10109600
Reference	{Deposit:: COOPER, J.R., AND SILVER, L.T., 1964, U.S. GEOLOGICAL SURVEY PROF. PAPER 416.}{Deposit:: COOPER, J.R., 1950, ARIZ. BUREAU OF MINES, GEOL. SER. 18 BULL 156.}{Deposit:: ROMSLO, T.M., 1949, ARIZ. BUREAU OF MINES REPT. INV. 4504.}{Deposit:: LIVINGSTON, MAUGER, BENNETT, AND LAUGHLIN, 1967, JGR, V. 72, P. 1361-1375.}{Deposit:: KEITH, 1973, ABM BULL 187.}{Deposit:: ROMSLO, T.M. 1949, INVESTIGATION OF KEYSTONE AND ST. GEORGE COPPER ZINC DEPOSITS, COCHISE COUNTY, ARIZONA: U.S. BUREAU OF MINES REPORT OF INVESTIGATION 4504, 21 P.}{Deposit:: 1947 DIREXPL U.S. BUREAU MINES, EXPLORATORY HOLES DRILLED}{Deposit:: 1964 GEOLMAP U.S. GEOLOGICAL SURVEY, COOPER AND SILVER, PROF. PAPER 416}{Production:: COOPER AND SILVER, 1964}
Reporter	Bergquist, Joel R.