Mine detail: Coronado Mine

Previously called 'Arizona Copper Co GroupCoronado Mining Co PropertyHorseshoe Shaft'

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Location

Lat / long: 33.11177, -109.39843

Resource(M)

Primary: Copper
Tertiary: Zinc, Lead, Manganese
Ore: Chalcocite, Chrysocolla, Coronadite, Libethenite, Malachite, Pyrite
Gangue: Kaolin, Limonite
Orebody form: TABULAR
Discovery year: 1874

Production

Operation type: Unknown
Production size: Small
Development status: Producer
First production started: 1913
Last production ended: 1918

Geology

Host type:Mafic Intrusive Rock,Quartzite
Associated rock:Precambrian Granite-Granodiorite Complex;Coronado Quartzite
Associated type:Diabase
Structure:Diabase And Porphyry Dikes Connected By A Fissure Vein System, Of Which The Coronado Vein Is The Most Important, Fissure Is Followed In Places By A Diabase Dike That Shows Evidence Of Crushing And Movement On The Vein; Horseshoe Lode Consists Of Alterred Granite And Contact Breccia
Tectonic:Coronado Granite Massif Surrounded By Peripheral Faults; Coronado Fault Fissure Has A Vertical Throw Of About 1200 Ft
Alteration processes:Sericitic Alterration Accompanied By Quartz Cementation Occurring Within Friction Breccia, Diabase And Crushed Material Of The Fault

References

MRDSM800425
DEP10109876
Reference{Deposit:: ABGMT-USBM FILE DATA.}{Deposit:: WATT, ROBERTA, 1956, HISTORY OF MORENCI ARIZONA, M.A. THESIS, UNIVERSITY OF ARIZONA, P. 17.}{Deposit:: ARIZ BUR MINES BULL 149, NO. 15.}{Deposit:: USGS PP 43, P. 338-344.}{Deposit:: STEVENS, H.J., 1911, THE COPPER HANDBOOK, V. X, P. 356-357, ARIZONA COPPER CO LTD.}{Deposit:: WEED, W.H., 1918, THE MINES HANDBOOK, V. XIII, P. 470-471, ARIZONA COPPER CO LTD.}{Deposit:: USBM FILES, CORONADO MINE.}{Deposit:: ABGMT CLIPPINGS FILE, CORONADO COPPER CO, ARIZONA COPPER CO LTD.}{Deposit:: BLM DISTRICT SHEET 840.}{Deposit:: LANGTON, J.M., 1973, ORE GENESIS IN THE MORENCI-METCALF DISTRICT. AMERICAN INSTITUTE OF MING, METALLURGICAL, AND PETROLEUMENGINEERS: TRANSACTIONS, V. 254, P. 256.}
ReporterCalder, Susan R.