Description
Polaris Mining And Milling Co
Commodities
PrimaryCopper, Silver, Gold
TertiaryLead
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formCONTIGUOUS LENS AND SHOOT DEPOSIT
Ore controlNe Trending Fissure Veins; W-E Trending Porphyry Dikes
Materials
Ore mineralsBornite, Chalcocite, Chalcopyrite, Pyrite
GangueKaolin
Geology
Host rockGranite · Modoc Limestone;Morenci Shale;;Longfellow Limestone
Associated rockDiorite · Precambrian Granite Basement;Morenci Granite Porphyry
StructureGranite Mass Cut By W-E Treding Dikes Of Porphyry, Diorite, And Phonolite; Well-Defined Quartz Veins Between Granite Porphyry, Rhyolite Dike Forms Footwall Of Golden Eagle Ore Shoot; Surrounded By Metamorphic Andesites; Gouge Streak Of Pure Kaolin With Average Width Of 1.0 Ft Between Quartz Vein And Walls
Tectonic settingGreat Fault Block Ne Of Copper King Mountain; Downthrow Of About 1000 Ft
AlterationSurface Oxidation To Unknown Depths
Economic & production
Development statusProducer
Discovery year1875
Identification
Deposit ID10027004
MRDS IDM001698
RegionNA
Data scoreB
Coordinates33.1351, -109.30843
References
LINDGREN, W., 1905 , THE COPPER DEPOSITS OF THE CLIFTON-MORENCI DISTRICT, ARIZONA: U.S.G.S. PROFESSIONAL PAPER 43 , P. 363ABGMT CLIPPINGS FILE, UNDER POLARIS MINING AND MILLING COABGMT-USBM FILE DATAARIZ DEPT OF MINERAL RESOURCES FILE DATA, UNDER POLARIS GROUP AND PARROT GROUPSTEVENS, 1911, THE COPPER HANDBOOK, V. 10, P. 1422 POLARIS MINING AND MILLING COUSBM FILES; AMAX INC, GOLDEN EAGLE, PARROT GROUPWEED, 1916, THE MINES HANDBOOK, V. 12, P. 933-934, POLARIS MINING AND MILLING COBENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS UNIVERSITY OF ARIZONA, 153 P.