Commodities
PrimaryCopper
SecondaryZinc
Commodity typeM
Deposit
Deposit sizeM
WorkingsSurface/Underground
Orebody formDISSEMINATED
Ore controlNe Trending Fissure Vein Containing Several Seams Of Massive Chalcocite, Adjoined By Decomposed Porphyry With Disseminated Grains And Small Seams Of Chalcocite And Pyrite
Materials
Ore mineralsBrochantite, Chalcocite, Chalcopyrite, Malachite, Pyrite, Sphalerite
GangueEpidote, Garnet, Hematite, Limonite, Magnetite, Pyroxene, Sericite
Geology
Host rockQuartz Monzonite · Modoc Limestone;Morenci Shale;Longfellow Limestone
Associated rockQuartz Monzonite · Morenci Granite Prophyry;Coronado Quartzite
StructureNe Trending Fissure Veins Containing Rich Chalcocite Ore; Between The Humboldt Vein And Another Fissure Vein 200 Ft Distant Lies The Great Mass Of Concentrating Ore, Extensive Seam Impregnations Of The Country Rock Are Rarely Confined By Distinct Walls; Veins Cut Across Both Porphyry And Metamorphic Limestone; Vein Footwall Is Generally A Well-Defined Plane And Follows Porphyry Dikes In Some Places
Tectonic settingComplex Copper Mountain Fault System With Substantial Vertical Displacement; Fault Blocks Generally Downthrown To Ne; Copper Mountain Fault Cuts Across Humboldt Mine To Sw
AlterationSurface Oxidation Of Chalcocite Zone; Chalcocite Replace Pyrite
Economic & production
Development statusPast Producer
First production1892
Last production1932
Discovery year1892
Identification
Deposit ID10088900
MRDS IDM800409
Alternate namesLiverpool Tunnel, Part of Arizona Copper Co Group
RegionNA
Data scoreB
Coordinates33.07871, -109.36676
References
ABGMT-USBM FILE DATA.BLM DISTRICT SHEET 840.USGS PP 43, P. 270-276.STEVENS, H.J., 1911, THE COPPER HANDBOOK, VOL. X, PAGES 356-358, ARIZONA COPPER CO LTD.WATT, ROBERTA, 1956, HISTORY OF MORENCI ARIZONA: M.A. THESIS, UNIVERSITY OF ARIZONA, P. 39-40.ABGMT CLIPPINGS FILE, ARIZONA COPPER CO LTD.BENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, AZ: MS THESIS UNIV OF AZ, 153 P.CIMRI