Mine detail: Gold Bar Mines

Previously called 'South Sycamore GroupMrs Frank Bates GroupStevens Brothers Gold HoldingSoutheast Sycamore Group'

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Location

Lat / long:

33.14343, -109.30398

Resource(M)

Primary:	Silver, Gold
Secondary:	Copper
Ore:	Chalcopyrite, Pyrite
Gangue:	Hematite, Limonite
Orebody form:	IRREGULAR
Discovery year:	1875

Production

Operation type:	Unknown
Production size:	Small
Development status:	Producer
First production started:	1910
Last production ended:	1946

Geology

Host type:	Granite
Associated rock:	Morenci Granite Porphyry;Precambrian Granite Basement
Associated type:	Quartz Monzonite
Structure:	Ne-Trending Quartzitic Fissure Veins Connected With Porphyry Dikes; Block Faulting Ne Of Copper King Mountain, Vein In Quartzitic Dike Associated With Nearby Morenci Granite Porphyry Stock
Tectonic:	Precipitous Gully Terrain; Transition Between Basin And Range And Colorado Plateau Provinces
Alteration processes:	Minor; Some Surface Oxidation Whereby Granite Host Rock Alterred By Limonite

References

MRDS	M800411
DEP	10048284
Reference	{Deposit:: ABGMT-USBM FILE DATA}{Deposit:: ARIZONA DEPARTMENT OF MINERAL RESOURCES FILE DATA, SOUTH SYCAMORE GROUP}{Deposit:: ABGMT CLIPPINGS FILE, SOUTH SYCAMORE GROUP, STEVENS BROTHERS GOLD HOLDINGS}{Deposit:: USGS PP 43, P. 363}{Deposit:: BENNET, K.C., 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI, METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA, 153 P.}
Reporter	Calder, Susan R.