Silver Queen Mine

Site Name

Primary: Silver Queen Mine
Secondary: Superior
Secondary: Magma Superior Mine
Secondary: Magma Mine
Secondary: Superior Mine
Secondary: Magma Copper Mine
Secondary: Superior Copper Mine
Secondary: Resolution

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Commodity

Primary: Copper
Primary: Silver
Primary: Molybdenum
Primary: Gold
Secondary: Manganese
Secondary: Zinc
Secondary: Lead
Tertiary: Bismuth
Tertiary: Silica
Tertiary: Iron
Tertiary: Arsenic
Tertiary: Cadmium

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Location

State: Arizona
County: Pinal
District: Pioneer

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Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

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Holdings

Type: Patented
Type: Unknown
Type: Fee Ownership

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Workings

Type: Underground

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Ownership

Owner Name: BHP Billtion Group
Percent: 45.00
Info Year: 2009
Years: 1999 -

Owner Name: Rio Tinto plc
Percent: 55.00
Home Office: London, UK
Info Year: 2009

Owner Name: Superior Ray Copper Co.
Info Year: 1917

Owner Name: Magma Copper Co.
Company ID: 200152
Percent: 100.0
Home Office: Arizona
Info Year: 1988

Owner Name: Broken Hill Proprietary Co. Ltd.
Percent: 100.0
Home Office: Australia
Info Year: 1996
Years: 1994 -

Owner Name: BHP Copper Inc.
Percent: 100.0
Home Office: Arizona
Info Year: 1996
Years: 1994 - 1999

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Production

Year: 1994
Description: Magma Copper 1994 10K
Year: 1993
Mined: 307100.000 mt
Material type: Ore
Description: 15,246 Mt Cu Prod. 307100 Mt Ore Mined
Year: 1992
Mined: 206400.000 mt
Material type: Ore
Description: 11,474 Mt Cu Prod. 206400 Mt Ore Mined
Year: 1991
Mined: 227300.000 mt
Material type: Ore
Description: 11,067 Mt Cu Prod. 227300 Mt Ore Mined
Year: 1990
Mined: 66000.000 mt
Material type: Ore
Description: 2,617 Mt Cu Prod. (Mine Reopened 1990). 66000 Mt Ore Mined
Year: 1982
Mined: 579599.000 mt
Material type: Ore
Description: 23,253 Mt Cu Prod. (Mine Closed 8/15/82) 579599 Mt Ore Mined
Year: 1981
Mined: 927099.000 mt
Material type: Ore
Description: 38,520 Mt Cu Prod. 927099 Mt Ore Mined
Year: 1980
Mined: 505162.000 mt
Material type: Ore
Description: 20,837 Mt Cu Prod. 505162 Mt Ore Mined
Year: 1977
Mined: 1063377.000 mt
Material type: Ore
Description: 1063377 37937 21653 679 1063380 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1979
Mined: 882959.000 mt
Material type: Ore
Description: 35,404 Mt Cu Prod. 882959 Mt Ore Mined
Year: 1978
Mined: 1020185.000 mt
Material type: Ore
Description: 1020185 43416 26463 496 (Estimated) 1020190 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1976
Mined: 1035118.000 mt
Material type: Ore
Description: 1035118 36096 19162 615 1035120 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1975
Mined: 986750.000 mt
Material type: Ore
Description: 986750 38905 21989 605 986750 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1974
Mined: 688721.000 mt
Material type: Ore
Description: 688721 28786 18108 439 688721 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1973
Mined: 492450.000 mt
Material type: Ore
Description: 492450 20247 12939 312 492450 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1972
Mined: 408757.000 mt
Material type: Ore
Description: 408757 16070 11165 244 408757 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1971
Mined: 387219.000 mt
Material type: Ore
Description: 387219 15245 10590 279 387219 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1970
Mined: 402692.000 mt
Material type: Ore
Description: 402692 16486 14946 308 402692 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1969
Mined: 382409.000 mt
Material type: Ore
Description: 382409 16031 15152 280 382409 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1968
Description: 302646 13341 10797 226 302646 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1967
Mined: 199138.000 mt
Material type: Ore
Description: 199138 8665 6140 155 199138 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1966
Mined: 391829.000 mt
Material type: Ore
Description: 391829 17809 14505 398 391829 Mt Ore,Mt Cu,Kg Ag.Kg Au
Year: 1965
Mined: 399085.000 mt
Material type: Ore
Description: 399085 17647 12702 397 399085 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1964
Mined: 342534.000 mt
Material type: Ore
Description: 342534 15480 9526 345 342534 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1963
Mined: 281266.000 mt
Material type: Ore
Description: 281266 12820 8936 269 281266 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1962
Mined: 306285.000 mt
Material type: Ore
Description: 306285 13529 9170 252 306285 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1961
Mined: 372819.000 mt
Material type: Ore
Description: 372819 18834 19080 455 372819 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1958
Mined: 354789.000 mt
Material type: Ore
Description: 354789 18734 17117 391 354789 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1959
Mined: 250737.000 mt
Material type: Ore
Description: 250737 11802 11445 289 250737 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1955
Mined: 415930.000 mt
Material type: Ore
Description: 415930 21723 14996 351 415930 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1960
Mined: 350754.000 mt
Material type: Ore
Description: 350754 17161 19413 447 350754 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1957
Mined: 382957.000 mt
Material type: Ore
Description: 382957 19755 17104 397 382957 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1956
Mined: 411579.000 mt
Material type: Ore
Description: 411579 21669 15276 362 411579 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1954
Mined: 420861.000 mt
Material type: Ore
Description: 420861 24579 19403 374 420861 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1950
Mined: 384164.000 mt
Material type: Ore
Description: 384164 21903 16097 443 384164 Mt Ore,Mt Cu,Kg Ag,Kg Au - 4890 Mt Zn Conc
Year: 1953
Mined: 391680.000 mt
Material type: Ore
Description: 391680 22516 18863 393 391680 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1952
Mined: 362467.000 mt
Material type: Ore
Description: 362467 15998 16931 347 362467 Mt Ore,Mt Cu,Kg Ag,Kg Au - 7941 Mt Zn Conc
Year: 1951
Mined: 385635.000 mt
Material type: Ore
Description: 385635 16508 15279 341 385635 Mt Ore,Mt Cu,Kg Ag,Kg Au - 11456 Mt Zn Conc
Year: 1949
Mined: 345567.000 mt
Material type: Ore
Description: 345567 18600 11552 359 345567 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1948
Mined: 272702.000 mt
Material type: Ore
Description: 272702 17132 9666 321 272702 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1947
Mined: 225985.000 mt
Material type: Ore
Description: 225985 13398 8743 263 225985 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1946
Mined: 182193.000 mt
Material type: Ore
Description: 182193 10697 7526 235 182193 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1944
Mined: 276331.000 mt
Material type: Ore
Description: 276331 10661 8805 219 276331 Mt Ore,Mt Cu,Kg Ag,Kg Au - 3326 Mt Zn
Year: 1945
Mined: 161219.000 mt
Material type: Ore
Description: 161219 7617 6539 168 161219 Mt Ore,Mt Cu,Kg Ag,Kg Au - 1968 Mt Zn
Year: 1943
Time Period: 1912-1943
Year: 1943
Mined: 376230.000 mt
Material type: Ore
Description: 376230 16885 12703 348 376230 Mt Ore,Mt Cu,Kg Ag,Kg Au - 3529 Mt Zn
Year: 1941
Mined: 367903.000 mt
Material type: Ore
Description: 367903 16853 19632 365 367903 Mt Ore,Mt Cu,Kg Ag,Kg Au - 3500 Mt Zn
Year: 1943
Time Period: 1911-1943
Year: 1942
Mined: 404149.000 mt
Material type: Ore
Description: 404149 18322 17026 399 404149 Mt Ore,Mt Cu,Kg Ag,Kg Au - 3318 Mt Zn
Year: 1938
Mined: 303573.000 mt
Material type: Ore
Description: 303573 14584 14515 269 303573 Mt Ore,Mt Cu,Kg Ag,Kg Au - 438 Mt Zn
Year: 1941
Time Period: 1907-1941
Year: 1940
Mined: 342941.000 mt
Material type: Ore
Description: 342941 15551 19577 352 342941 Mt Ore,Mt Cu,Kg Ag,Kg Au - 2718 Mt Zn
Year: 1939
Mined: 330474.000 mt
Material type: Ore
Description: 330474 15453 18649 361 330474 Mt Ore,Mt Cu,Kg Ag,Kg Au - 1933 Mt Zn
Year: 1937
Mined: 274299.000 mt
Material type: Ore
Description: 274299 14082 15788 284 274299 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1936
Mined: 248630.000 mt
Material type: Ore
Description: 248630 13736 17173 247 248630 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1935
Mined: 235465.000 mt
Material type: Ore
Description: 235465 13486 19466 269 235465 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1934
Mined: 239585.000 mt
Material type: Ore
Description: 239585 14355 22199 283 239585 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1933
Mined: 131929.000 mt
Material type: Ore
Description: 131929 8904 14724 143 131929 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1932
Mined: 135181.000 mt
Material type: Ore
Description: 135181 9832 15117 160 135181 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1931
Mined: 210344.000 mt
Material type: Ore
Description: 210344 13046 21821 234 210344 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1927
Mined: 201266.000 mt
Material type: Ore
Description: 201266 12486 24439 223 201266 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1928
Mined: 238677.000 mt
Material type: Ore
Description: 238677 15980 28523 270 238677 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1930
Mined: 228497.000 mt
Material type: Ore
Description: 228497 14315 25816 265 228497 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1929
Mined: 244560.000 mt
Material type: Ore
Description: 244560 16565 32079 319 244560 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1926
Mined: 225698.000 mt
Material type: Ore
Description: 225698 13187 24838 281 225698 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1925
Mined: 208089.000 mt
Material type: Ore
Description: 208089 12257 22391 283 208089 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1924
Mined: 201676.000 mt
Material type: Ore
Description: 201676 10570 16585 236 201676 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1923
Mined: 71568.000 mt
Material type: Ore
Description: 71568 3156 6348 80 71568 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1922
Mined: 898.000 mt
Material type: Ore
Description: 898 63 13 1 898 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1921
Mined: 19455.000 mt
Material type: Ore
Description: 19455 920 1860 25 19455 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1920
Mined: 91510.000 mt
Material type: Ore
Description: 91510 4017 9432 138 91510 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1919
Mined: 80883.000 mt
Material type: Ore
Description: 80883 4400 12963 142 80883 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1918
Mined: 81939.000 mt
Material type: Ore
Description: 81939 4976 14417 177 81939 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1917
Mined: 97550.000 mt
Material type: Ore
Description: 97550 4604 16734 186 97550 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1916
Mined: 85102.000 mt
Material type: Ore
Description: 85102 3844 15755 99 85102 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1915
Mined: 53723.000 mt
Material type: Ore
Description: 53723 2743 11385 61 53723 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1914
Mined: 17161.000 mt
Material type: Ore
Description: 17161 1000 3680 16 17161 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1912
Mined: 10092.000 mt
Material type: Ore
Description: 10092 501 1996 6 10092 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1913
Mined: 12823.000 mt
Material type: Ore
Description: 12823 635 2155 4 12823 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1905
Year: 1907
Mined: 192.000 mt
Material type: Ore
Description: 192 44 433 1 192 Mt Ore,Mt Cu,Kg Ag,Kg Au
Year: 1911
Mined: 117.000 mt
Material type: Ore
Description: 117 31 117 Mt Ore,Mt Cu

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Deposit

Record Type: Deposit
Operation Category: Past Producer
Deposit Type: Porphyry Cu
Operation Type: Underground
Mining Method: Filled Stopes - Other Filled Stope Methods
Milling Method: Flotation
Year First Production: 1907
Year Last Production: 1996
Discovery Year: 1874
Years of Production:
Organization:
Significant: Y
Deposit Size: M

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Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland

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Mineral Deposit Model

Model Name: Porphyry Cu

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Orebody

Name: Resolution Porphyry
Form: Tabular

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Structure

Type: R
Structure: Mineralized EW to NW Trending Faults

Type: R
Structure: N-S Trending Fault System, N-S Trending Sediments with E Dip

Type: L
Structure: E-W Faulting, Off of N-S Trending Main Fault

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Alterations

Alteration Type: L
Alteration: All mined ore has been oxidized

Alteration Type: L
Alteration: Sericitization

Alteration Type: L
Alteration: Serpentinization & Uralitization

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Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene

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Analytical Data

Not available

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Materials

Ore: Enargite
Ore: Bornite
Ore: Tennantite
Ore: Gold
Ore: Coronadite
Ore: Chrysocolla
Ore: Cuprite
Ore: Famatinite
Ore: Hemimorphite
Ore: Hydrozincite
Ore: Malachite
Ore: Psilomelane
Ore: Manganite
Ore: Rhodochrosite
Ore: Chalcocite
Ore: Silver
Ore: Chalcopyrite
Gangue: Calcite
Gangue: Dolomite
Gangue: Limonite
Gangue: Hematite
Gangue: Magnetite
Gangue: Stromeyerite
Unknown: Barite
Unknown: Pyrite
Unknown: Galena
Unknown: Quartz
Unknown: Sphalerite

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Comments

Comment (Deposit): Property Is Also Under USGS Mrds Id No. W002674. Commodities Presently Produced Are Copper, Silver And Gold. Ore Was Mined And Milled From 1938-1945 And 1950-1952. Manganese Minerals Are Present In The Deep Vein Ore Bodies The No. 9 Shaft Is The Only Shaft Used. Its Location Is From Information Taken From Pay Dirt And Petersons Mf-253 Development Schedule Based On The Size Of The Deposit, A Major Mine And Plant Development Program Was Initiated In 1969. Limestone Densities Are Assumed. Ore Body Length And Width Limestones Are Estimated. Present Production Is From The Martin And Escabrosa Limest The Magma And Koerner Veins Were Phased Out In 1950 Due To Economic Problems With Ventilation, Cooling And Ore Grade Deep Portions Of The Veins. Swell Factor Is Based On An As Value Of 65 %. A Form Of Underhand Cut And Fill Mining Is Presently Used. This Mining Method Was Adopted From The Su Operations Of The International Nickel Company Of Canada. Production, Service And Supplies For The Mine Are Handled The No. 9 Shaft. Ultimate Hoisting Capacity Of The No. 9 S Is 4000 Tpd Of Ore And 300 Of Waste From 6000 Feet. Cost Related Comments From April 1969 To August 1973 A Major Expansion Program W Undertaken. Total Capital Expenditure Exceeded 70 Million Including All Direct And Indirect Costs. Key Elements Of T Program Were: A 4823 Ft Deep, 22 Ft Diameter Concrete Line A 9200 Ft Long, 12.5 Ft Diameter Bored Adit Connecting Sha No. 9 To Surface Yard Facilities And The Concentrator. An Ground Development Program To Prepare Additional Facilites Increased Mining Tonnage. Expansion And Modernization Of T Concentrator To Process 4200 Tpd Of Ore. Conversion Of The Surface Plant And Mine Electrical System From 25 Hz To 60 A New Hoist Plant. New Air Compressors, Electrical And Mec Repair Shops, Warehouse, Office And Changeroom Facilities Shaft No. 9. Mine Cooling Capacity Was Raised To 6300 Tons (See Murray) Total Direct Mining Costs In 1976 Were 2.39 D Less Per Ton Than In 1973. Property Update Sept. 1991. Mils Location Is Neversweat (500-Foot) Tunnel Portal. Main Production And Service Shaft, No. 9 Shaft, Is Located At N331816 Lat, W1110403 Long, In Sec 32, R13e, T1s, Gila & Salt River Pm. Ore Is Hoisted Up This Shaft From Deep Levels To Neversweat Level. Ore Is Then Trammed 2,740 M To Portal And Another 670 M On Surface To Concentrator. 1979-82 & 1990 Production From Az Dept Of Mines & Min. Res. Special Reports - Primary Copper Industry Of Arizona. Mine Closed In 1982, And Was Allowed To Flood In 1986. In 1989, Mine Dewatering Began And Was Completed In Early 1990. Production Started In Late July At A Level Of 907 Mtpd Ore. By End Of 1991, Production Level Will Reach 1360 Mtpd Ore.

Comment (Reserve-Resource): Other Name:Silver Queen Or Magma Mine Reopening With 1,500,000 Mt Measured Reserves At 6.8% Cu.

Comment (Economic Factors): Other Name:Silver Queen Or Magma Mine Reopening With 1,500,000 Mt Measured Reserves At 6.8% Cu. Labor Recs Based On Mine And Mill At Planned Capacity After 1991.

Comment (Deposit): The Magma Mine at Superior: Complex Vein Splits Forming Stockworks, With Ore Shoots, Alone Faults And Fissures. Main Ore Body E Of W Dipping Main Fault. Central Ore Bodies Are Complex Ore Shoots E Of Main Body. Farther E And Up In Section Are Replacement Beds In Lower Devonian Linestone, 10-90 Ft Width Of Ore, 25 Ft Average. In The Central Ore Bodies, Above The 2550 Ft Level, Zinc Exceeds Copper. Below 2550 Ft, Copper Dominates

Comment (Development): Originally Called The Silver Queen, 1875-1909. Magma Copper Company Began Operating 1910 Minor Production Until 1911, When Owned By Lake Superior And Arizona Mining Company

Comment (Geology): The Magma Mine at Superior: Mineralization Associated With Diorite Porphyry Intrusive Period, Although Little Intrusive Rock Is Present Here. Major Intrusive Is 2 Miles N. At Silver King, Faults Are Premineralization, And Faults Continued To Move During The Short Period Between Porphyry Intrusion And Mineral Deposition. Ore Deposition Was Mesothermal, And Mineralogy And Occurrence Of Ore Is Similar To Deposits Of Butte, Montana. The Magma Is Not Similar To Nearby Porphyry Copper Deposits As There Is Little Disseminated Ore In Porphyry Host Rock, But The Age Of Mineralization Is The Same As Nearby Deposits Such As The Globe And Miami, Approximately 60 M.Y.

Comment (Workings): 8 Shafts. Deepest Mine In The State. 36 Levels, With Levels Every 100 Ft In Upper 2000 Ft Every 200 Ft Down To 4800 Ft. Workings Diminish In Thickness To The East, And Are Mainly Between The 3000 Ft And 4000 Ft Levels. Length Of Workings Estimated

Comment (Deposit): The Magma Mine at Superior: Vein Occurs Within A Strike Fault Zone That Has Brecciated The Wall Rocks Contact And The Lower Beds Of The Limestone. Most Productive Gold Horizon Along The Faults Is Within The Limestone, 10-20 Feet Above The Limestone-Quartzite Contact. All Mined Ore Has Been Oxidized

Comment (Development): Claims Include Golden Eagle And 5 Adjacent Claims; Worked In 1880'S By Gem Mining Co. As The Golden Eagle Mine; Other Owners/Operators: Lake Superior And Arizona Mining And Smelting Co., Superior Arizona Mining Co., Sam Herron And Con Laster

Comment (Geology): Although There Are No Surface Intrusives, Mineralization Is Associated With Cret-Paleo Intrusive And Faulting Episodes

Comment (Workings): Workings Include Vivian Shaft (279 Ft Deep), Anderson Tunnel (200 Ft), Carlton Tunnel (2000 Ft), Holt Tunnel And Inclined Shaft (1800 Ft Deep); The Anderson Tunnelis Located About 100 Ft North Of The Carlton, Upslope; The Holt Tunnel Is About 1200 Ft North Of The Anderson At About The Same Elevation; The Holt, Anderson, And Carlton Interconnect Underground.

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References

Reference (Reserve-Resource): Broken Hill Pty. Co. Ltd., 1996 Report To Shareholders-

Reference (Reserve-Resource): Magma Copper Co 1994 10-K, P.16,19-20.

Reference (Deposit): "Ore Deposits Of The United States" 1933-1967,Part 9 Chap 61 Pp 1285-6. (This Covers The Years 1911-1964, Inclusive)

Reference (Deposit): Murray, T. W. Operating Improvements At Magma'S No. 9 Shaft.

Reference (Deposit): Newmont Mining Company, Securities And Exchange Commision Fo

Reference (Deposit): Beall, J. V. Copper In The U.S. - A Position Survey. Mining

Reference (Deposit): Sw Pay Dirt, 3-90, P.4a.

Reference (Deposit): Sw Paydirt, 9-90, P.13a.

Reference (Deposit): Sw Pay Dirt, 11-90, P.4a.

Reference (Deposit): Magma Update, 7-91, P.7.

Reference (Deposit): Walenga, Karen. Reopening Mine and Mill To Cost $13 Million.

Reference (Deposit): Hammer, D. F. And D. W. Peterson. Geology Of The Magma Mine

Reference (Deposit): Peterson, D. W. Preliminary Geological Map Of The Western Pa

Reference (Deposit): Magma Copper Company 1988-1990 Annual Reports.

Reference (Deposit): Epler, Bill. Magma Restarts Mine After 8-Year Hiatus.

Reference (Reserve-Resource): Dobbs, Dave. Engineer With Magma, Superior Division. (Per-

Reference (Deposit): Dobbs, Dave Engineer With Magma, Superior Division. (This

Reference (Deposit): U.S. Bu. Of Mines Official Gold,Silver,Copper,Lead,andZinc

Reference (Deposit): Dunning, Charles H, With Edward H Peplow,Jr., "Rocks To

Reference (Deposit): Listing Application To The New York Stock Exchange A-27691

Reference (Deposit): Skillings, D. N. Jr. Magma Copper Co. Marking Expanded Produ

Reference (Deposit): Pay Dirt. Magma To Bore 9000 Foot Haulage Tunnel At Superior

Reference (Deposit): Murray, J. W. And E.K. Staley. Underground Operations At Sup

Reference (Reserve-Resource): Magma Copper Co Sec Form 10-K Rept, Dec 31, 1993, P. 17.

Reference (Deposit): Dunning, C. H. Rock To Riches. Southwest Publishing Company,

Reference (Deposit): E/Mj International Directory Of Mining And Mineral Processin

Reference (Development): Sell, J.D., 1995, Discovery of a deep (3500 feet) unexposed porphyry copper deposit at Superior East, Pinal County, Arizona; in Pierce, F.W. and Bolm, J.G., eds., Porphyry Copper Deposits of the American Cordillera, Arizona Geological Society Digest, v. 20, p. 373-395

Reference (Geology): Manske, S. and Paul, A.H., 2002, Geology of a major new porphyry copper center in the Superior (Pioneer) district, Arizona: Economic Geology, v. 97, p. 197?220.

Reference (Deposit): Skillings Mining Review . Magma Co. Operations At Superior A

Reference (Deposit): Short, M. N., F. W. Galbraith, E. N. Harshman, T. H. Kuhn, A

Reference (Age): Creasey, S.C. and Kistler, R.W., 1962, Age of some copper bearing porphyries and other igneous rocks in southeastern Arizona; U.S. Geological Survey, Professional Paper 450-D, p. 1-5.

Reference (Geology): The Porter GeoConsultancy webpages for Superior and Resolution mines contain descriptions of the geology. Accessed on 9/30/2010. http://www.portergeo.com.au/
URL: http://www.portergeo.com.au

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Arizona Gold

"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.