Morenci Mine

Site Name

Primary: Morenci Mine
Secondary: Morenci-Metcalf
Secondary: Clay Ore Body

---

Commodity

Primary: Copper
Secondary: Silver
Secondary: Gemstone
Secondary: Gold
Secondary: Molybdenum
Tertiary: Zinc
Tertiary: Uranium
Tertiary: Gypsum-Anhydrite
Tertiary: Lead
Tertiary: REE
Tertiary: Garnet
Tertiary: Talc-Soapstone

---

Location

State: Arizona
County: Greenlee
District: Copper Mountain District

---

Land Status

Land ownership: Private
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.

---

Holdings

Type: Fee Ownership

---

Workings

Type: Surface/Underground

---

Ownership

Owner Name: Freeport-McMoRan Copper and Gold Inc
Percent: 85.00
Home Office: One North Central Avenue Phoenix AZ 85004 United States
Info Year: 2009
Years: 2007 -

Owner Name: Phelps Dodge Corp.
Company ID: 200024
Home Office: Arizona
Info Year: 1994

Owner Name: Sumitomo Metal Mining Arizona Inc.
Company ID: 200024
Percent: 15.00
Home Office: Japan
Info Year: 1994

Owner Name: Phelps Dodge Corp.
Company ID: 200024
Percent: 85.00
Home Office: Arizona
Info Year: 1994

---

Production

Year: 2008
Material type: FCX 2009 10-K http://phx.corporate-ir.net/phoenix.zhtml?c=63811&p=irol-sec
Year: 2009
Material type: FCX 2010 10-K http://phx.corporate-ir.net/phoenix.zhtml?c=63811&p=irol-sec
Year: 2007
Material type: FCX 2010 10-K http://phx.corporate-ir.net/phoenix.zhtml?c=63811&p=irol-sec
Year: 1998
Mined: 218631000.00 mt
Material type: leach ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 2006
Mined: 245847000.00 mt
Material type: Phelps Dodge 2006 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015307000431/p73493e10vk.htm
Year: 2005
Mined: 231332000.00 mt
Material type: leach ore; Phelps Dodge 2005 10K http://www.sec.gov/Archives/edgar/data/78066/000095015306000504/p71867e10vk.htm
Year: 2000
Mined: 224982000.00 mt
Material type: leach ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 2004
Mined: 212281000.00 mt
Material type: leach ore; Phelps Dodge 2005 10K http://www.sec.gov/Archives/edgar/data/78066/000095015306000504/p71867e10vk.htm
Year: 2001
Mined: 3629000.000 mt
Material type: millable ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 2002
Mined: 224982000.00 mt
Material type: leach ore; Phelps Dodge 2005 10K http://www.sec.gov/Archives/edgar/data/78066/000095015306000504/p71867e10vk.htm
Year: 2003
Mined: 215003000.00 mt
Material type: leach ore; Phelps Dodge 2005 10K http://www.sec.gov/Archives/edgar/data/78066/000095015306000504/p71867e10vk.htm
Year: 2001
Mined: 251290000.00 mt
Material type: leach ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 2000
Mined: 23587000.000 mt
Material type: millable ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 1999
Mined: 34473000.000 mt
Material type: millable ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 1999
Mined: 234961000.00 mt
Material type: leach ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 1998
Mined: 42638000.000 mt
Material type: millable ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 1997
Mined: 42638000.000 mt
Material type: millable ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 1997
Mined: 220446000.00 mt
Material type: leach ore; Phelps Dodge 2001 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015302000502/p66069e10-k405.htm
Year: 1996
Mined: 42638000.000 mt
Material type: millable ore; Phelps Dodge 1996 10-K405 http://www.sec.gov/Archives/edgar/data/78066/0000950147-97-000155.txt
Year: 1996
Mined: 226796000.00 mt
Material type: leach ore; Phelps Dodge 1996 10-K405 http://www.sec.gov/Archives/edgar/data/78066/0000950147-97-000155.txt
Year: 1994
Mined: 177318000.00 mt
Material type: leach ore; Phelps Dodge 1996 10-K405 http://www.sec.gov/Archives/edgar/data/78066/0000950147-97-000155.txt
Year: 1994
Mined: 40823000.000 mt
Material type: millable ore; Phelps Dodge 1996 10-K405 http://www.sec.gov/Archives/edgar/data/78066/0000950147-97-000155.txt
Year: 1995
Mined: 196841000.00 mt
Material type: leach ore; Phelps Dodge 1996 10-K405 http://www.sec.gov/Archives/edgar/data/78066/0000950147-97-000155.txt
Year: 1995
Mined: 39916000.000 mt
Material type: millable ore; Phelps Dodge 1996 10-K405 http://www.sec.gov/Archives/edgar/data/78066/0000950147-97-000155.txt
Year: 1992
Material type: Prod From Sx-Ew Plt
Description: 147690 Mt Cu Prod From Sx-Ew Plt
Year: 1993
Mined: 42629000.000 mt
Material type: millable ore; Phelps Dodge 1996 10-K405 http://www.sec.gov/Archives/edgar/data/78066/0000950147-97-000155.txt
Description: Grade Of Ore Mined: 0.0.67% Cu 42629000 Mt Ore Mined
Year: 1993
Mined: 156074000.00 mt
Material type: leach ore; Phelps Dodge 1996 10-K405 http://www.sec.gov/Archives/edgar/data/78066/0000950147-97-000155.txt
Description: 154900 Mt Cu Prod From Sx-Ew Plt
Year: 1992
Mined: 42240000.000 mt
Description: Grade Of Ore Mined: 0.67% Cu 42240000 Mt Ore Mined
Year: 1991
Description: 108363 Mt Cu From Sx-Ew Plt
Year: 1991
Mined: 40396000.000 mt
Description: Grade Of Ore Mined: 0.69% Cu 40396000 Mt Ore Mined
Year: 1990
Description: 91092 Mt Cu From Sx-Ew Plt
Year: 1990
Mined: 39106000.000 mt
Description: Grade Of Ore Mined: 0.74% Cu 39106000 Mt Ore Mined
Year: 1990
Description: 213418 Mt Cu Prod From Ore
Year: 1989
Description: 57557 Mt Cu From Sx-Ew Plt
Year: 1989
Description: Leach Dump/Cu Ppt Plt Closed 2871 Mt Cu From Ppt
Year: 1988
Description: 3582 Mt Cu From Ppt
Year: 1988
Description: 45600 Mt Cu From Sx-Ew Plt
Year: 1989
Mined: 36885000.000 mt
Description: Grade Of Ore Mined: 0.79% Cu 36885000 Mt Ore Mined
Year: 1988
Mined: 37125000.000 mt
Description: Grade Of Ore Mined: 0.83% Cu 37125000 Mt Ore Mined
Year: 1987
Description: Leach Dump/Sx-Ew Plt Opens 6511 Mt Cu From Sx-Ew Plt
Year: 1987
Mined: 36055000.000 mt
Description: Grade Of Ore Mined: 0.82% Cu 36055000 Mt Ore Mined
Year: 1986
Mined: 35993000.000 mt
Description: Grade Of Ore Mined: 0.84% Cu 35993000 Mt Ore Mined
Year: 1985
Mined: 33492000.000 mt
Description: Grade Of Ore Mined: 0.86% Cu 33492000 Mt Ore Mined
Year: 1984
Mined: 34324000.000 mt
Description: Grade Of Ore Mined: 0.84% Cu 34324000 Mt Ore Mined
Year: 1983
Mined: 31209000.000 mt
Description: Grade Of Ore Mined: 0.73% Cu 31209000 Mt Ore Mined
Year: 1982
Mined: 14069000.000 mt
Description: Grade Of Ore Mined: 0.71% Cu 14069000 Mt Ore Mined
Year: 1979
Mined: 19694000.000 mt
Description: Sulfide Ore Mined, Morenci, Pd Ann Rep 1980 19694000 Metric Tons
Year: 1979
Mined: 8368000.000 mt
Description: Sulfide Ore Mined, Metcalf, Pd Ann Rep 1980 8368000 Metric Tons
Year: 1980
Mined: 16048000.000 mt
Description: Sulfide Ore Mined, Morenci, Pd Ann Rep 1980 16048000 Metric Tons
Year: 1980
Mined: 2192000.000 mt
Description: Sulfide Ore Mined, Metcalf, Pd Ann Rep 1982 2192000 Metric Tons
Year: 1981
Mined: 26073000.000 mt
Description: Grade Of Ore Mined: 0.74% Cu 26073000 Mt Ore Mined
Year: 1978
Mined: 10269000.000 mt
Description: Sulfide Ore Mined, Metcalf, Pd Ann Rep 1980 10269000 Metric Tons
Year: 1978
Mined: 16271000.000 mt
Description: Sulfide Ore Mined, Morenci, Pd Ann Rep 1980 16271000 Metric Tons
Year: 1977
Mined: 15727000.000 mt
Description: Ore Mined 15727000 Mt Ore
Year: 1975
Time Period: 1942-1975
Material type: Ore
Year: 1975
Mined: 16174000.000 mt
Description: Ore Mined 16174000 Mt Ore
Year: 1976
Mined: 18705000.000 mt
Description: Ore Mined 18705000 Mt Ore
Year: 1973
Time Period: 1942-1973
Description: Cu Prod (1942-1973) 3061000 Mt Cu
Year: 1932
Time Period: 1872-1932
Description: Cu Prod (1872-1932) 1005000 Mt Cu
Year: 2006
Mined: 3629000.000 mt
Material type: millable ore; Phelps Dodge 2006 10-K http://www.sec.gov/Archives/edgar/data/78066/000095015307000431/p73493e10vk.htm

---

Deposit

Record Type: Deposit
Operation Category: Producer
Deposit Type: Porphyry Cu-Mo
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Flotation
Year First Production: 1942
Discovery Year: 1865
Years of Production:
Organization:
Significant: Y
Deposit Size: L

---

Physiography

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

---

Mineral Deposit Model

Model Name: Porphyry Cu-Mo

---

Orebody

Form: ELLIPTICAL

---

Structure

Type: L
Structure: NE and E striking Laramide faults

---

Alterations

Alteration Type: L
Alteration: Potassic, sericitic, propylitic, argillic

Alteration Type: L
Alteration: Intense Hydrothemal Alteration

---

Rocks

Name: Schist
Role: Associated
Description: sericite schist and quartzite
Age Type: Associated Rock Unit
Age Young: Mesoproterozoic

Name: Limestone
Role: Host
Description: Paleozoic-Mesozoic sequence of quartzites, carbonates and shales
Age Type: Host Rock Unit
Age Young: Cretaceous
Age Old: Cambrian

Name: Quartz Monzonite
Role: Host
Description: Ranging from diorite to granite-rhyolite
Age Type: Host Rock
Age in Years: 55.200000+-1.700000
Age Young: Tertiary

Name: Granite
Role: Associated
Description: comprising an older Morenci Granodiorite and the younger Metcalf Granite
Age Type: Associated Rock Unit
Age Young: Neoproterozoic

---

Analytical Data

Analytical Data: AVG=1:80 BUT MINED RATIO IS 1:50
Analytical Data: 0.10-0.15% CU, 3-5% PYRITE IN PROTORE

---

Materials

Ore: Galena
Ore: Malachite
Ore: Gold
Ore: Cuprite
Ore: Covellite
Ore: Copper
Ore: Chrysocolla
Ore: Argentite
Ore: Sphalerite
Ore: Chalcocite
Ore: Stromeyerite
Ore: Sphalerite
Ore: Molybdenite
Ore: Pyrite
Ore: Argentite
Ore: Molybdenite
Ore: Andradite
Ore: Chalcopyrite
Ore: Azurite
Gangue: Allophane
Gangue: Goethite
Gangue: Tremolite
Gangue: Talc
Gangue: Opal
Gangue: Magnetite
Gangue: Jarosite
Gangue: Hematite
Gangue: Gypsum
Gangue: Alunite
Gangue: Nontronite
Unknown: Tenorite
Unknown: Turquoise

---

Comments

Comment (Deposit): Associated Deposits: Metcalf (porphyry), Modoc skarn

Comment (Ownership): Morenci is the largest copper producer in North America and remains a major contributor to Phelps' copper output, which is second only to that of Chile's Codelco. In 1986, Phelps Dodge Morenci, Inc. was established as a partnership between Phelps Dodge Mining Company (85%) and Sumitomo Metal Mining Arizona Inc. The latter belongs to Sumitomo Corp. (75%) and Sumitomo Metal Mining Co Ltd.

Comment (Production): During 2006, Morenci mined 247 Million tons of ore, milled 4.1 Million tons grading 0.56% Cu, placed 230.70 Million tons of ore onto leach pads, recovered 14,993 tons copper in concentrate and electrowon 355,574 tons of copper cathode. (www.mining-technology.com/projects/morenci/)

Comment (Commodity): The Morenci porphyry copper deposit contains three types of copper ore minerals - oxide, secondary sulfide, and primary sulfide. The main oxide copper minerals are chrysocolla and malachite . The main secondary copper sulfide minerals are chalcocite and pyrite, and the main primary copper sulfide is chalcopyrite. There are many other primary and secondary minerals, including molybdenite, galena and sphalerite and two types of turquoise - hard, flawless blue and spider webbed. (FCX 2009 10-K and other sources)

Comment (Environment): Located in the transitional zone between the stable Colorado Plateau and the extensional Basin and Range province.

Comment (Deposit): Enrichment blanket ranges from 50 to 1000 ft thick and thickens from W to E. Turquoise found in the oxidized part of the deposit. Massive andradite is found in a scarn deposit at the southwest corner of the large open pit.

Comment (General): Property includes: Northwest Extension; Southside Expansion; Garfield; and Shannon Deposits

Comment (Reserve-Resource): Other Name: Clay Ore Body. Includes Both The Morenci And Metcalf Mine/Mill. Expansion To L-Sx-Ew Plant Requires Evaluation. Western Mining Claim, Located Between Morenci And Metcalf, Is Controlled By Phelps Dodge. Expansion Into Nw Extension Needs Evaluation. Reserves/Reserves As Of 12/31/94 From Phelps Dodge Corp. 1994 Form 10-K, P.12,14. Proven & Probable Reserves: (Million Mt) Milling Ore Leaching Ore Morenci 433.4 M Mt @ 0.72% Cu 1082.5 M Mt @ 0.32% Cu Measured & Indicated Resource: (Million Mt) Coronado 163.0 M Mt @ 0.69% Cu 281.0 M Mt @ 0.29% Cu Western Copper 481.0 M Mt @ 0.55% Cu 454.0 M Mt @ 0.31% Cu Garfield 689.0 M Mt @ 0.28% Cu Total 1077.4 M Mt @ 0.64% Cu 2506.5 M Mt @ 0.30% Cu Gold, Silver And Molybdenum Grades Only Apply To Sulfide Ore But Are Shown As A Weighted Average Grade For Adit. Demonstrated Adit Total= Milling+Leaching Reserves. 12/31/95.

Comment (Ownership): Mine Address: Phelps Dodge Corporation Morenci, Az 85540 Corporate Headquarters: Phelps Dodge Corp. 2600 N. Central Ave. Phoenix, Az 85004 Sumitomo Metal Mining Co Purchased 15% Of Morenci-Metcalf Property For $75,000,000 In Early 1986. (Phelps Dodge 1986 Ann Rept, P. 2 & 22.)

Comment (Geology): District is zoned with a chalcopyrite-rich core surrounded by a pyrite envelope which is surrounded by protore. Ag and Au more abundant in less altered areas. Greatest Mo concentrations are in granite porphyry, less in precambrian granite.

---

References

Reference (Deposit): BUTLER & WILSON, 1938, ABM BULL. 145, P. 72-80.

Reference (Deposit): LANGTON, 1971, AIME TRANS., V. 254, P. 247-257.

Reference (Geology): The Porter GeoConsultancy website has a webpage covering the Morenci mine. http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn741
URL: http://www.portergeo.com.au

Reference (General): Moolick R T, Durek J J 1966 - The Morenci district: in Titley S R, Hicks C L 1966 Geology of the Porphyry Copper Deposits, Southwestern North America University of Arizona Press, Tucson pp 221-231.

Reference (General): Melchiorre E B, Enders M S 2003 - Stable isotope geochemistry of Copper Carbonates at the Northwest Extension deposit, Morenci district, Arizona: implications for conditions of supergene oxidation and related mineralization: in Econ. Geol. v98 pp 607-621

Reference (Reserve-Resource): Freeport-McMoRan 2008 Form 10-K

Reference (Geology): Einaudi, M.T., 1982, Description of skarns associated with porphyry copper plutons, in Titley, S.R., ed., Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press, p. 139-183.

Reference (Age): McDowell, F.W., 1971, K-Ar ages of igneous rocks from the western United States; Isochron/West: A Bulletin of Isotopic Geochronology, v. 2, p. 1-16.

Reference (Geology): Enders, M.S., Titley, S. R. and Hertle, M. P., 1997, Thick supergene enrichment blankets - lessons from the Morenci District, Arizona; Mining Engineering, vol. 49, no. 11, Supplement, 62 p.

Reference (Reserve-Resource): GREELEY, 1976, P. 86; 1990 ESTIMATE FROM PHILIPS AND OTHERS, 1990.

Reference (Other Database): CIMRI

Reference (General): Enders M S, Knickerbocker C, Titley S R and Southam G, 2006 - The Role of Bacteria in the Supergene Environment of the Morenci Porphyry Copper Deposit, Greenlee County, Arizona : in Econ. Geol. v101 pp 59-70.

Reference (Deposit): PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

Reference (Deposit): BLAIR, GERRY, 1992, THE ROCKHOUND'S GUIDE TO ARIZONA: HELENA, MONTANA, FALCON PRESS, 165 P.

Reference (Deposit): PEIRCE, H.W., 1990, ARIZONA GEOLOGICAL SURVEY INDUSTRIAL MINERAL CARD FILES.

Reference (Deposit): TITLEY AND HICKS, 1966, GEOLOGY OF THE PORPHYRY COPPER DEPOSITS IN SOUTHWESTERN NORTH AMERICA, P. 221-231.

Reference (Deposit): PHILIPS AND OTHERS, 1990.

Reference (Deposit): PHELPS DODGE HAS SOMETHING TO SMILE ABOUT. E&MJ AUG. 1987, PP. 24-31.

Reference (Deposit): LINDGREN, 1905, USGS PROF PAPER 43.

Reference (Deposit): U.S. BUREAU OF MINES, 1979, CAPITAL AND OPERATING COST

Reference (Deposit): PHELPS DODGE TODAY, 1980, SEPTEMBER, V.2, NO. 3 (NEW FLOT.COST)

Reference (Deposit): PAYDIRT, 1981, PHELPS DODGE, A COPPER CENTENNIAL, 1881-1981. 192 P.

Reference (Reserve-Resource): PHELPS DODGE CORP., 1995 FORM 10-K.

Reference (Reserve-Resource): PHELPS DODGE CORP., 1994 ANNUAL REPORT, P.22.

Reference (Reserve-Resource): PHELPS DODGE CORP., 1994 FORM 10-K, P.12,14.

Reference (Reserve-Resource): PHELPS DODGE CORP., 1994 ANNUAL REPORT, P.14.

Reference (Reserve-Resource): PHELPS DODGE CORP., 1993 FORM 10-K, P.12.

Reference (Geology): LANGTON,J.M.,2/72;ORE GENSIS IN THE MORENCI-METCALF DISTRICT AIME TRANSACTIONS VOL 254 9/73

Reference (Geology): TITLEY,S.R.,HICKS,C.L.,1966; GEOLOGY OF THE PORPHYRY COPPER DEPOSITS SOUTHWESTERN NORTH AMERICA

Reference (Deposit): PHELPS DODGE TODAY, 1979, AUGUST, V.1, NO. 1 (MOLY PLANT).

Reference (Deposit): MINING RECORD, V 106/N 28, 7/12/95, P.8.

Reference (Deposit): DILLARD, GARY, CHALLENGES OF 2 SAFFORD PROJECTS APPEAR WITHOUT STANDING, SOUTHWESTERN PAY DIRT, 2/95, P.9A,10A.

Reference (Deposit): CARTER, RUSSELL A., EXPANSION ALMOST COMPLETE AT ARIZONA'S MISSION AND MORENCI MINES, ENGINEERING AND MINING JOURNAL, 2/92, C14-C16.

Reference (Deposit): DILLARD, GARY, FOUR MAJOR OREBODIES WILL SHOULDER THE LOAD, SOUTHWESTERN PAY DIRT, 11/91, P.4A-14A.

Reference (Deposit): EPLER, BILL, PHELPS DODGE RELOCATES HIGHWAY AT MORENCI MINE, SOUTHWESTERN PAY DIRT, 7/91, P.4A-6A.

Reference (Deposit): EPLER, BILL, PHELPS DODGE FINDS 150 MILLION MORE TONS OF ORE AT MORENCI, SOUTHWESTERN PAY DIRT, 1/91, P.3A.

Reference (Deposit): PAY DIRT JAN 1986 P19A AND DEC. 1987 PP4A&5A.

Reference (Deposit): PHELPS DODGE 1986 ANNUAL REPORT EINAUDI, MARCO T., IN "ADVANCES IN GEOLOGY OF THE PORPHYRY COPPER DEPOSITS-SOUTHWESTERN NORTH AMERICA", 1982, UNIVERSITY OF ARIZONA PRESS, P.168,169.

Reference (Deposit): METALS WEEK, 6/13/94, P.1,5.

Reference (Deposit): PHELPS DODGE CORP, NEWS RELEASE, 6/9/94, P.1.

Reference (Deposit): DILLARD, GARY, PHELPS DODGE IS CONTEMPLATING SX-EW EXPANSION AT MORENCI, SOUTHWESTERN PAY DIRT, 5/94, P.3A,8A.

Reference (Deposit): DOWALL, WILLIAM M., AND LINDE, TERRY B., MORENCI'S IN-PIT CRUSHING AND CONVEYING SYSTEM, MINING ENGINEERING, 3/93, P.257-262

Reference (Deposit): METAL BULLETIN MONTHLY, 8/92, P.47.

Reference (Deposit): MINING RECORD, 8/5/92, P.3.

Reference (Deposit): SNIDER, T.R., MORENCI SOUTHSIDE WILL ADD 150 MILLION POUNDS OF CATHODE, SOUTHWESTERN PAY DIRT, 8/94, P.3A.

Reference (Deposit): RHOADES, DAVID, TWO NEW P&H 40-YARDERS HELP BOOST PRODUCTION, SOUTHWESTERN PAY DIRT, 7/94, P.5A-7A.

Reference (Deposit): DILLARD, GARY, PD HITTING A MILLION POUNDS A DAY OF ELECTRO- WON, SOUTHWESTERN PAY DIRT, 7/92, P.4A-8A.

Reference (Deposit): SOUTHWESTERN PAY DIRT, 7/94, P.3A.

Reference (Deposit): MINING RECORD, 6/22/94, P.1.

Reference (Deposit): SKILLINGS', 6/18/94, P.11.

Reference (Deposit): PHELPS DODGE CORP., NEWS RELEASE, 12/19/90, 2PP.

Reference (Deposit): DILLARD, GARY, HEFTY CRAWLER RIG MOVES 3,000 TONS OF PARTS, SOUTHWESTERN PAY DIRT, 3/92, P.4A-9A.

Reference (Deposit): WALENGA, KAREN, SX-EW PRODUCTION DOUBLED TO 200 MILLION 25PPY, SOUTHWESTERN PAY DIRT, 4/90, P.4A-6A.

Reference (Deposit): CANEY, DEREK J., PD SETS $200M FOR MINE EXPANSION, AMERICAN METAL MARKET, 6/14/94, P.16.

Reference (Geology): Enders, M.S., Knickerbocker, C., Titley, S.R., and Southam, G., 2006, The role of bacteria in the supergene environment of the Morenci porphyry copper deposit, Greenlee County, Arizona: Economic Geology, v. 101, p. 59-70.

Reference (Reserve-Resource): Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world: database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, 45 p. http://pubs.usgs.gov/of/2008/1155/
URL: http://pubs.usgs.gov/of/2005/1060/of2005-1060.pdf

Reference (Geology): Enders, M.S., 2000, The evolution of supergene enrichment in the Morenci porphyry copper deposit, Greenlee County, Arizona: Tucson, University of Arizona, Ph.D. dissertation, 517 p.

Reference (Deposit): Holick, P.A., and Wood, S.A., 1999, Fluid-inclusion study of the Morenci porphyry copper deposit, Arizona; metal content of the ore-forming brine (abs.): Geological Society of America, Abstracts with Programs, v. 31, no. 7, p. 404.

Reference (Geology): Melchiorre, E.B., and Enders, M.S., 2003, Stable isotope geochemistry of copper carbonates at the northwest expension deposit, Morenci district, Arizona: indications of conditions of supergene oxidation and related mineralization: Economic Geology, v. 98, p. 607?621.

Reference (Development): The Metals Economics Group website has a page covering the Morenci mine. http://www.metalseconomics.com/
URL: http://www.metalseconomics.com/

---

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.