Mine detail: Gladstone Mine Group

Previously called 'IndependenceThessaliaEurekaArizona ClaimRayGladstone-Proto GroupProto Mine'

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Location

Lat / long:

31.3982, -110.7515

Resource(M)

Primary:	Copper, Silver, Gold
Secondary:	Lead, Zinc
Ore:	Chalcopyrite, Galena, Sphalerite
Gangue:	Quartz
Orebody form:	TABULAR
Discovery year:	1888

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1916
Last production ended:	1951

Geology

Host type:	Diorite
Associated type:	Diorite,Granite
Structure:	Deposits Occur In Forms Of Subordinate Veins, Lenses, Stringers, And Seams In Fissures, Joints, Sheeting Planes, And Other Fractures In Quartz Monzonite And Diorite, Diorite Forms Footwall And Quartz Monzonite Forms Hanging Wall Of Vein System; Mineralization Occurred Mainly In Diorite
Tectonic:	Guajolote Fault Block; Nw-Trending, Inferred Guajolote Fault Lies To E Of Deposits; Downthrow To E
Alteration processes:	Strong Potassic Alteration; Granodiorite Is Highly Shattered, Sheeted, And Crushed

References

MRDS	M899912
DEP	10048331
Reference	{Deposit:: USBM-ABGMT PRODUCTION DATA, GLADSTONE-PROTO MINE GROUP}{Deposit:: ADMR FILE DATA, GLADSTONE (PROTO,INDEPENDENCE) MINE}{Deposit:: USBM-FILE DATA, CLUSTER #22, GLADSTONE MINE GROUP}{Deposit:: ABGMT CLIPPINGS FILE DATA, GLADSTONE MINE}{Deposit:: SCHRADER, F.C., 1915, USGS BULL. 582, P. 316}{Deposit:: SIMONS, FRANK S., 1974, GEOLOGIC MAP AND SECTIONS OF THE NOGALES AND LOCHIEL QUADRANGLES, SANTA CRUZ COUNTY, ARIZONA; USGS MAP I-762 (1:48000)}{Deposit:: KEITH, STANTON B, 1975, INDEX OF MINING PROPERTIES IN SANTA CRUZ COUNTY, ARIZONA; ARIZONA BUREAU OF MINES BULLTEIN 191, P. 80}{Deposit:: ABGMT FILES, STANTON B. KEITH}{Deposit:: TENNEY, JAMES B., 1927-1929, HISTORY OF MINING IN ARIZONA; ARIZONA BUREAU OF MINES, P. 313}
Reporter	Laraba, Peter (Calder, Susan)