Mine detail: Minnesota Mine

Previously called 'Marche Mine'

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Location

Lat / long:

31.38875, -110.75595

Resource(M)

Primary:	Copper
Secondary:	Silver
Ore:	Malachite
Orebody form:	TABULAR

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1952
Last production ended:	1953

Geology

Host type:	Quartz Monzonite
Associated type:	Hornblendite
Structure:	Deposits Occur In Form Of Subordinate Veins, Lenses, Stringers, And Seams In Fissures, Joints, Sheeting Planes, And Other Fractures In Quartz Monzonite And 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	M899906
DEP	10109886
Reference	{Deposit:: USBM-ABGMT PRODUCTION FILE DATA}{Deposit:: USBM FILE DATA-CLUSTER #22, MINNESOTA 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)}
Reporter	Laraba, Peter (Calder, Susan)