Mine detail: Detroit Mine

Previously called 'Part of Arizona Copper Co Group'

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Location: Greenlee County, Arizona, United States, North America
Lat / long: 33.07677, -109.36537
dep_id: 10048296
mrds_id: M800428
Commodity type: metallic
Major mineral: Copper
Minor mineral: Silver
Trace mineral: Zinc, Manganese
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chalcocite, Chalcopyrite, Cuprite, Malachite, Pyrite, Sphalerite
gangue: Epidote, Garnet, Hematite, Kaolin, Limonite
orebody_fm: TABULAR
work_type: Surface/Underground
alteration: Upper Beds Of Modoc Limestone Altered To Garnet Rock; Ore Is Entirely Oxidized
conc_proc: Mineralization Along Beddinng Planes; Supergene Enrichment Facilitated By Copper Mountain Fault
ore_ctrl: Several Ore-Bearing Horizons Are Contained In Limestone And Separated By Barren Material Main Ore Body Contained Between 2 Large Porphyry Dikes ( Joy And Hummingbird Dikes) That Both Dip 60 To 70 Nw
Reporter: Calder, Susan R.
hrock_unit: Modoc Limestone;Morenci Shale
hrock_type: Shale,Limestone
arock_unit: Morenci Granite Porphyry
arock_type: Quartz Monzonite
Structure: One Of Several Regional Deposits Of Carbonates And Cuprite In Limestone; East Side Of The Copper Mountain Fault, Main Ore Body Is Located Immediately Under Heavy Garnet Rock And Is About 25 Ft Thick; A Lower Ore Body Of 5 Ft Thickness Is Separated From Main Ore Body By A Barren Lime-Shale Sequence
tectonic: Copper Mountain Fault; Dislocates Both Dikes; East Side Of Fault Shows Se Horizontal Throw Of 50 To 70 Ft
Year first produced: 1884
yr_lst_prd: 1932
disc_yr: 1884
References:
  • Deposit:: ABGMT-USBM FILE DATA.
  • Deposit:: ABGMT CLIPPINGS FILE, ARIZONA COPPER CO LTD.
  • Deposit:: USGS PP 43, P. 240-245.
  • Deposit:: BLM DISTRICT SHEETS 840 AND 841.
  • Deposit:: BENNETT, 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.
  • Other Database:: CIMRI
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