Tyrone

Site Name

Primary: Tyrone
Secondary: Includes A Number of Older Underground Mines: Gettysburg
Secondary: Copper Gulf
Secondary: Rocket
Secondary: Niagra
Secondary: Mowhawk
Secondary: Sampson
Secondary: McKinley
Secondary: St. Louis
Secondary: Boston
Secondary: Virginia
Secondary: Klondike
Secondary: Valencia
Secondary: Emerald

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Commodity

Primary: Gold
Primary: Silver
Primary: Copper
Secondary: Gemstone
Secondary: Fluorine-Fluorite
Secondary: Lead
Secondary: Zinc
Tertiary: Vanadium
Tertiary: Uranium
Tertiary: Molybdenum

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Location

State: New Mexico
County: Grant
District: Burro Mountains District: Tyrone Subdistrict

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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.

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Holdings

Type: Patented
Type: Fee Ownership

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Workings

Not available

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Ownership

Owner Name: Freeport-McMoRan
Percent: 100.0
Home Office: P.O. Box 571 Tyrone, NM 88065 (575) 538-5331
Info Year: 2009
Years: 2007 -

Owner Name: Phelps Dodge Corp.
Company ID: 2900159
Home Office: P.O. Drawer B, Tyrone, N.M. 88065
Info Year: 1995
Years: 1981 -

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Production

Year: 2004
Mined: 1494000.000 mt
Material type: Material mined. Phelps Dodge 2006 10K, p. 13-14.
Year: 1999
Mined: 102895000.00 mt
Material type: Material mined. Phelps Dodge 2003 10K.
Year: 2003
Mined: 14804000.000 mt
Material type: Material mined. Phelps Dodge 2003 10K.
Year: 2002
Mined: 41291000.000 mt
Material type: Material mined. Phelps Dodge 2003 10K.
Year: 2000
Mined: 103362000.00 mt
Material type: Material mined. Phelps Dodge 2003 10K.
Year: 2001
Mined: 67123000.000 mt
Material type: Material mined. Phelps Dodge 2003 10K.
Year: 1997
Mined: 97882000.000 mt
Material type: Material mined. Phelps Dodge 1998 10K.
Year: 1998
Mined: 98302000.000 mt
Material type: Material mined. Phelps Dodge 1998 10K.
Year: 1996
Mined: 93382000.000 mt
Material type: Material mined. Phelps Dodge 1998 10K.
Year: 1995
Mined: 76145000.000 mt
Material type: Material mined. Phelps Dodge 1998 10K.
Year: 1994
Mined: 56306000.000 mt
Material type: Material mined. Phelps Dodge 1998 10K.
Year: 1993
Mined: 44803000.000 mt
Material type: Material mined. Phelps Dodge 1993 10K.
Year: 1993
Time Period: 1972-1993
Year: 1992
Mined: 29399000.000 mt
Material type: Material mined. Phelps Dodge 1993 10K.
Year: 1991
Mined: 83953000.000 mt
Material type: Material mined. Phelps Dodge 1993 10K.
Year: 1992
Time Period: 1969-1992
Year: 1989
Mined: 63881000.000 mt
Material type: Material mined. Phelps Dodge 1993 10K.
Year: 1990
Mined: 76370000.000 mt
Material type: Material mined. Phelps Dodge 1993 10K.
Year: 1987
Description: 8000 Mt Prod From Leach Ppt
Year: 1987
Description: 36000 Mt Cu Prod From Sx-Ew Plt
Year: 1987
Description: 96000 Mt Cu Prod From Ore
Year: 1986
Description: 32100 Mt Cu Prod Frm Sx-Ew Plt
Year: 1987
Description: Grade Of Ore Mined 0.88% Cu 15564000 Mt Ore Mined
Year: 1986
Description: 105200 Mt Cu Prod From Ore
Year: 1986
Description: 7200 Mt Cu Prod From Leach Ppt
Year: 1985
Description: 18600 Mt Cu Prod Frm Sx-Ew Plt
Year: 1986
Description: Grade Of Ore Mined: 0.86% Cu 16257000 Mt Ore Mined
Year: 1985
Description: 5700 Mt Cu Prod Frm Leach Ppt
Year: 1985
Description: 108100 Mt Cu Prod From Ore
Year: 1985
Description: Grade Of Ore Mined: 0.89% Cu 16022000 Mt Ore Mined
Year: 1984
Description: Burro Chief Sx-Ew Plt Started Op In 4/84 10300 Mt Cu Prod From Sx-Ew Plt
Year: 1984
Description: 67800 Mt Cu Prod From Ore
Year: 1984
Description: 2300 Mt Cu Prod Frm Leach Ppt
Year: 1984
Description: Grade Of Ore Mined: 0.77% Cu 12948000 Mt Ore Mined
Year: 1983
Description: 3100 Mt Cu Prod Frm Leach Ppt
Year: 1983
Description: 37700 Mt Cu Prod From Ore
Year: 1983
Description: Grade Of Ore Mined: 0.78% Cu Opened 5/83 7824000 Mt Ore Mined
Year: 1982
Description: 3500 Mt Cu Prod Frm Leach Ppt
Year: 1982
Description: Grade Of Ore Mined: 0.70% Cu Closed 4/82 3397000 Mt Ore Mined
Year: 1982
Description: 17600 Mt Cu Prod From Ore
Year: 1981
Description: 4100 Mt Cu Prod Frm Leach Ppt
Year: 1980
Description: 5000 Mt Cu Prod Frm Leach Ppt
Year: 1981
Description: Grade Of Ore Mined: 0.73% Cu 13445000 Mt Ore Mined
Year: 1981
Description: 70200 Mt Cu Prod From Ore
Year: 1930
Time Period: 1906-1930
Year: 1980
Description: Grade Of Ore Mined: 0.71% Cu 14968000 Mt Ore Mined
Year: 1980
Description: 77800 Mt Cu Prod From Ore
Year: 2005
Mined: 26163000.000 mt
Material type: Material mined. Phelps Dodge 2006 10K, p. 13-14.
Year: 2006
Mined: 20098000.000 mt
Material type: Material mined. Phelps Dodge 2006 10K, p. 13-14.
Year: 2007
Material type: Freeport-McMoRan 2010 10K, p. 23.
Year: 2008
Material type: Freeport-McMoRan 2010 10K, p. 23.
Year: 2009
Material type: Freeport-McMoRan 2010 10K, p. 23.
Year: 2010
Material type: Freeport-McMoRan 2010 10K, p. 23.

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Deposit

Record Type: Deposit
Operation Category: Producer
Deposit Type: Porphyry Cu
Plant Type: Leach
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Leach-Solvent-Extract-Electrowin
Year First Production: 1879
Year Last Production: 1981
Discovery Year: 1871
Years of Production:
Organization:
Significant: Y
Deposit Size: L

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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

Not available

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Structure

Type: R
Structure: NW-SE Mangas Fault, NE-SW Burro Chief Fault , E-W Racket-Virginia Fault

Type: L
Structure: Five Northeast Trending Zones Of Closely Spaced Fractures Are Also Zones Of

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Alterations

Alteration Type: L
Alteration: Alteration Products: Sericite, Quartz,

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Rocks

Name: Quartz Monzonite
Role: Host
Description: multi-phase quartz-monzonite porphyry series of intrusions
Age Type: Host Rock Unit
Age Young: Eocene
Age Old: Paleocene

Name: Andesite
Role: Host
Age Type: Host Rock
Age Young: Cretaceous

Name: Diabase
Role: Host
Description: dikes
Age Type: Host Rock
Age Young: Mesoproterozoic

Name: Granite
Role: Host
Description: medium to coarse grained containing large grains of orthoclase or plagioclase , and abundant irregular grains of quartz. Biotite is not common, and hornblende is minor. Accessory minerals sphene, zircon, tourmaline, apatite, magnetite, ilmenite, rutile
Age Type: Host Rock
Age Young: Mesoproterozoic

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Analytical Data

Not available

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Materials

Ore: Libethenite
Ore: Sphalerite
Ore: Tenorite
Ore: Turquoise
Ore: Molybdenite
Ore: Malachite
Ore: Cuprite
Ore: Chrysocolla
Ore: Chalcopyrite
Ore: Chalcocite
Ore: Bornite
Ore: Copper
Ore: Fluorite
Ore: Chalcanthite
Ore: Brochantite
Gangue: Jarosite
Gangue: Pyrite
Gangue: Quartz
Gangue: Limonite
Gangue: Hematite
Unknown: Gold
Unknown: Silver
Unknown: Azurite

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Comments

Comment (Deposit): 30% covered. Two stages of supergene enrichment 19.2?16.2 Ma and 8.7?4.6 Ma.

Comment (Workings): Mine Consists Of One Large Open Pit Which Is A Consolidation Of The West Racket, Gettysburg, Main, And Copper Mountain Pits. By 1978 Most Of The Old Underground Workings Had Been Destroyed By Development Of The Open Pit.

Comment (Reserve-Resource): (1) Initial Open Pit Reserve, Mill Ore; (2) Another Estimate Of Initial Open Pit Reserve, Mill Ore; (3) Final Estimate Open Pit Reserve, Mill Ore, Since Exhausted; (4) Leach Ore. Reserves Of Leach Ore Not Yet (1994) Fully Delineated.

Comment (Production): (1) Ore Milled During Underground Operations. Excludes About 54,000 St Direct Shipping Ores Mined From 1904 To 1949. (2) Ore Milled During Open Pit Operations. (3) Ore Delivered To Leach Stockpiles. Stockpiled Ore Is Part Of 1.3 Billion St "Waste" Mined From 1967 - 1991.

Comment (Location): Geodetic Location Is For The Approximate Center Of The Open Pit Area.

Comment (Development): Work, Later Merging To Form The Savannah Copper Co. (2577 Ac) Which Was Acquired By Phelps Dodge In 1916. In 1906 Briggs Oliver Development Co Optioned The Burro Chief Group From Thomas Parker, Was Suceeded By The Tyrone Copper Co. And Then The Chemung Copper Co. (953 Ac) Which Was Acquired By Phelps Dodge In 1912. Having Consolidated Control Of The Major Chalcocite Vein Properties, Phelps Dodge Developed A 1400 Tpd Mine And Mill From 1913 To 1916 And Operated The Mine From 1916 To 1921. Leach Operations, Producing Cement Copper Continued To 1928 When Leach Plant Was Dismantled. Intermittent Development And Production By Company And Leasers Ceased In 1949. From 1949 To 1958. Phelps Dodge Delineated The Supergene Enrichment Blanket Orebody By Drilling 720 Churn Drill Holes On 200 Ft Centers Over An Area 8400 Ft East-West By 9400 Ft North-South For A Total Footage Of 434,000 Ft To A Maximum Of 1000 Ft Depth. During That Time Phelps Dodge Acquired Property Of The Azure Mining Co.

Comment (Development): Turquoise Mined By Native Americans. John E. Coleman Located First Copper And Turquoise Claims In 1869. St. Louis Claim Located 1879 By James Bullard, John Swisshelm, And J.W. Fleming Then Sold To Val Verde Copper Co. Oxide Surface Ores, Smelted In A 5o Tpd Reverbatory Furnace Located In Dead Man Gulch, Were Quickly Exhausted. A 500 Ft Shaft Cut The Tabular St. Louis Chalcocite Orebody. About The Same Time The Alessandro Copper Co. Attempted To Leach Oxide Ores From Claims 3 Miles East Of The St. Louis And Another Smelter At Oak Grove Ran For A Short Time. The Val Verde Copper Co. Was Subsequently Absorbed Into The Southwestern Copper Co. Which Later Acquired The Sampson And Other Properties. In 1901 The Burro Mountain Copper Co. Took Over The Southwestern Copper Co. And Built The Leopold Mill. The Burro Mountain Property (1000 Ac) Was Optioned By Phelps Dodge In 1904 And Acquired In 1906. Around 1905 The Comanche Mining And Smelting Co. And Copper Gulf Development Co. Began And The American Gem And Turquoise Co. Stripping Began May 1, 1967, Mill Operations Began In 1969, And Leach Operations Began In 1972. Mill Operated Continuously Until February, 1992 When Reserves Of Mill Ore Were Exhausted. Mill Subsequently Dismantled Except For One 15,000 Tpd Section Retained For Treatment Of Mill Ore Which May Become Available During Mining Of Recently Delineated Leach Ores. A Sx/Ew Plant Of 14,000 Tpd Capacity Was Installed In 1984. A Fourth Expansion In 1992 Brought Capacity To 70,000 Tpd. Additional Drilling From 1991 Continues To Delineate More Leach Ore Reserves.

Comment (Production): Tyrone Sx-Ew Plant Owned And Operated By Burro Chief Copper Co (100% Owned By Phelps-Dodge) Started Plant In April 1984. 1981-1987 Production Taken From Phelps Dodge Annual Reports 1981-1987.

Comment (Geology): The Ore Body Consists Of A Supergene Blanket Of Erratic Chalcocite Mineralization Which May Vary From A Few To Over 300 Ft. In Thickness.

Comment (Reserve-Resource): As Of March 1992, The Sulfide Concentrator Closed Due To Deple- Tion Of Sulfide Reserves. Mine Is Still Mining Leach Ore And Processing At Sx-Ew Plant.

Comment (Commodity): Presence Of Torbernite Suspected Due To Radioactivity Recorded In Some Drill Holes.

Comment (Deposit): Deposits Occur In A Highly Fractured Disseminated Copper Porphyry Stock. Numerous Fracture Fillings And Veinlets Were Mined Underground Prior To Open Pit Operations. Protore Consists Of Quartz-Sericite-Pyrite-Chalcopyrite Stockwork Veinlets With Very Little Bornite And Grades Of 0.05 To 0.15% Cu. Multiple Stages Of Primary Copper Veinlets Are Hosted By Precambrian Granite, Cretaceous Andesite, And Four Stages Of Eeocene Quartz Monzonite Porphyry. The Chalcocite Enrichment Blanket, Up To 500 Ft Thick, Had Grades Of 0.8 To 1.0% Cu. Chalcocite Replaces Pyrite And Chalcopyrite. Enrichment Blanket Is Overlain By A Hemetitic Leached Capping Up To 500 Ft Thick. Oxide Ore In Leached Blanket In Copper Mountain Pit Consists Of Chrysocolla-Malachite-Azurite Veinlets, Coatings, And Rare Disseminations Grading 0.06 To 0.60% Cu. Secondary Enrichment Occured At 45 Ma (Eeo). About 350 Million St Of 0.2 To 0.4% Cu Protore Was Enriched To About 0.8% Cu. Enriched Blanket Was Subsequently Offset By Nne Trending Faults. Additional Concentration Of Chalcocite Occured Along These Nne Trendings Faults And Fractures At 19.5 Ma. These Formed Tabular Bodies Of Chalcocite Ore Averaging 2 To 3% Cu Of Which At Least 20 Were Partly Mined Out By Old Underground Workings. All Mineralization Cut By Unrelated Mio? Fluorite Veins. (Duhamel and others, 1995)

Comment (Reserve-Resource): The Quant-Grade Matrix Is Leachable Reserves. Grade Is In Terms Of Acid-Soluble Grade.

Comment (Ownership): Tyrone Sx-Ew Plant Owned And Operated By Burro Chief Copper Co (100% Owned By Phelps-Dodge) Started Plant In April 1984. 1981-1987 Production Taken From Phelps Dodge Annual Reports 1981-1987. Corporate Headquarters Address: Phelps Dodge Corp. 2600 N. Central Ave. Phoenix, Az 85004 Mine Address: Tyrone Mine Tyrone, Nm 88065 Burro Chief Copper Co. Operates Both The Sx-Ew Plants At Chino And Tyrone.

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References

Reference (Geology): KOLESSAR, JOSEPH, THE TYRONE COPPER DEPOSIT, IN ADVANCES IN GEOLOGY OF THE PORPHYRY COPPER DEPOSITS- SOUTHWESTERN NORTH AMERICA, 1982, UNIVERSITY OF ARIZONA PRESS, P.327-333.

Reference (Geology): KOLESSAR, JOSEPH. GEOLOGY AND COPPER DEPOSITS OF THE TYRONE DISTRICT, GUIDEBOOK, 21ST FIELD CONFERENCE, ENTITLED TYRONE-BIG HATCHET MOUNTAINS-FLORIDA MOUNTAINS REGION, NEW MEXICO GEOLOGICAL SOCIETY, 1970.

Reference (Deposit): PHELPS DODGE HAS SOMETHING TO SMILE ABOUT, BY D. ELLINGSON, E&MJ, AUG 1987, PP. 24-32.

Reference (Production): PHELPS DODGE CORP., CRUSHING PLANT EQUIPMENT AND FLOWSHEET.

Reference (Deposit): DILLARD, GARY, TYRONE CONCENTRATOR SHUTS DOWN AS MILL-GRADE ORE RUNS OUT, SOUTHWESTERN PAY DIRT, 3/92, P.10A.

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

Reference (Deposit): MINING RECORD, PHELPS TO SUSPEND CONCENTRATOR OPERATIONS, 11/6/91, P.5.

Reference (Deposit): DILLARD, GARY, TYRONE MILL CLOSING, BUT MINING AND LEACHING TO CONTINUE, SOUTHWESTERN PAY DIRT, 11/91, P.3A.

Reference (Deposit): PHELPS DODGE CORP., NEWS RELEASE, 10/24/91, 2PP.

Reference (Geology): North, R.M., and McLemore, V.T., 1988, A classification of the precious metal deposits of New Mexico, in Schafer, R.W., Cooper, J.J., and Vikre, P.G., eds., Bulk mineable precious metal deposits of the western United States: Reno, Nevada Geological Societ

Reference (Deposit): DOUBLED SX-EW COPPER PLANT AT TYRONE IS NOW IN PRODUCTION, SW PAY DIRT, JAN 1986, P. 6A.

Reference (Geology): Duhamel, J.E., Cook, S.S., and Kolessar, J., 1995, Geology of the Tyrone porphyry copper deposit, New Mexico, in Pierce, F.W., and Bolm, J.G., eds., Porphyry copper deposits of the American Cordillera: Tucson, Arizona Geological Society Digest 20, p. 464-

Reference (Deposit): WORLD MINING. MORENCI IS LARGEST AND HIGHEST GRADE PHELPS DODGE OREBODY OCTOBER 1975, V. 28, NO. 11, P. 74.

Reference (Deposit): WORLD MINING. SEPTEMBER 1982, P. 70.

Reference (Deposit): SOUTHWESTERN PAY DIRT. EARLY MINE FAILURE COULD ADD 4 MORE YEARS. OCTOBER, 1995. PP. 4A-10A.

Reference (Deposit): SOUTHWESTERN PAY DIRT, OLD CHINO TRUCKS MOVE TO TYRONE, 2/91, P.11A.

Reference (Deposit): SOUTHWESTERN PAY DIRT.DIPATCH CONTROL SYSTEM DEVELOPED AT TYRONE. JUNE, 1995. PP.4A-10A.

Reference (Deposit): SOUTHWESTERN PAY DIRT.APRIL, 1995. P. 7A.

Reference (Deposit): SOUTHWESTERN PAY DIRT, 6/95, P.4A-10A.

Reference (Deposit): SOUTHWESTERN PAY DIRT, 10/95, P.4A-10A.

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

Reference (Reserve-Resource): PHELPS DODGE CORP. SEC FORM 10-K REPORT, DEC 31, 1993, P. 12

Reference (Reserve-Resource): WORLD MINING, OCT., 1975, V 28, NO 11, P 74-RESERVES 1/1/75.

Reference (Deposit): TYRONE DRILLING AND BLASTING DEPARTMENT. PHELPS DODGE TODAY, V.3, NO. 1, MARCH 1981, PP. 8,9.

Reference (Deposit): TYRONE BRANCH TAILINGS DAM FAILS. PHELPS DODGE TODAY, V.2, NO.4, DECEMBER 1980, P.7.

Reference (Deposit): SUCCESSFUL RECLAMATION OF TYRONE TAILINGS SPILL. PHELPS DODGE TODAY, V.4 NO. 1, MARCH 1982.

Reference (Deposit): PHELPS DODGE. 1980 ANNUAL REPORT, P. 9.

Reference (Deposit): SOUTHWESTERN PAY DIRT, FIRMS PROMOTING NEW MEXICO COPPER SITE NEXT TO TYRONE MINE, 8/90, P.14A.

Reference (Deposit): SOUTHWESTERN PAY DIRT, STUDY PROJECTS GRANT COUNTY LOSSES WHEN TYRONE MINE CLOSES, 5/90, P.12A.

Reference (Deposit): PHELPS DODGE. 10-K REPORT, P.2, 1980.

Reference (Deposit): 'MINER' MIRACLE. PHELPS DODGE TODAY, JUNE 1982, PP. 6-7.

Reference (Deposit): BIGGER MEANS BETTER. PHELPS DODGE TODAY, V.1,NO.2, DEC 1979

Reference (Reserve-Resource): PHELPS DODGE CORP., 1995 ANNUAL REPORT, P.22.

Reference (Reserve-Resource): PHELPS DODGE CORP., 1994 ANNUAL REPORT, P.15.

Reference (Reserve-Resource): PHELPS DODGE CORP., ANNUAL REPORTS 1966,1976-78.

Reference (Production): PHELPS DODGE CORP, CLEANING, SCAVENGING AND DEWATERING EQUIPMENT & FLOWSHEET.

Reference (Production): PHELPS DODGE CORP,GRINDING & ROUGHER FLOTATION EQUIP.& FLWST

Reference (Production): DAMAN, A.C., PHELPS DODGE TYRONE CONCENTRATOR, DECO TREFOIL, FALL ISSUE, 1971, BULLETIN NO M4-B144.

Reference (Deposit): LINDGREN, W., GRATON, L.C., AND GORDON, C.H., 1910 USGS PP 68, P. 321-324

Reference (Deposit): GILLERMAN, E., 1952 USGS BULL 973-F, P. 261-289

Reference (Deposit): KOLESSAR, J., 1982, THE TYRONE COPPER DEPOSITS, GRANT COUNTY, NEW MEXICO, IN TITLEY, S.R., ED., ADVANCES IN GEOLOGY OF THE PORPHYRY COPPER DEPOSITS: TUCSON, UNIV. ARIZONA PRESS, P. 327-333.

Reference (Deposit): PAIGE, S., 1922 USGS PP 122, 53 PAGES

Reference (Deposit): FIELD VISIT BY KEITH R. LONG, USGS, 10/1994

Reference (Ownership): Freeport-McMoRan Copper & Gold. "Mining Reclamation in New Mexico. Retrieved March 18, 2009, from http://www.fcx.com/envir/pdf/brochure/reclamation_NewMexico.pdf
URL: http://www.fcx.com/envir/pdf/brochure/reclamation_NewMexico.pdf

Reference (Deposit): LONG, K.R., 1994, PRODUCTION AND RESERVES OF CORDILLERAN PORPHYRY COPPER DEPOSITS, IN BOLM, J.G., AND PIERCE, F.W., EDS., BOOTPRINTS ALONG THE CORDILLERA: ARIZ. GEOL. SOC. DIGEST 21.

Reference (Deposit): HEDLUND, D.C., 1978 USGS MAPS MF-1031, MF-1037, MF-1040, MF-1041

Reference (Production): (1,2) LONG, 1994; (3) STEGEN, 1994.

Reference (Deposit): WILLIAMS, F.E., 1966 USBM IC-8307, P. 64

Reference (Deposit): STEGEN, R.J., 1994, GEOLOGIC TOUR OF THE TYRONE MINE: PHELPS DIDGE MINING CO., UNPUBLISHED REPORT, 6 P.

Reference (Deposit): JONES, F.A., 1904 NEW MEXICO MINES AND MINERALS, THE NEW MEXICAN PRINTING CO., P. 55-57

Reference (Deposit): NMBMMR GENERAL FILE DATA

Reference (Deposit): SIEMERS, W.T., AND AUSTIN, G.S., 1979 NMBMMR RESOURCE MAP 9

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These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.