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Pima

Past Producer in Pima county in Arizona, United States with commodities Copper, Molybdenum, Silver
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10113722
MRDS ID M050388
MAS/MILS ID 0040190006
Record type Site
Current site name Pima
Related records 10039593

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -111.07259, 31.98872 (WGS84)
Elevation 1022
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twin Buttes(quadrangle 1:24,000 scale)

Sells(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Santa Cruz(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 016 S 012 E 36 S2 Arizona

Commodities

Commodity Importance
Copper Primary
Molybdenum Secondary
Silver Secondary

Materials information

Materials Type of material
Chalcopyrite Unknown
Molybdenite Unknown

Nearby scientific data

Ore Body (1) -111.07259, 31.98872
ListMap

Economic information

Ore body information

  • Thickness 290M
    Length 1617M
    Width 1525M
    Depth to top 76.3M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 MASSIVE
    Type of Orebody #2 DISSEMINATED
    Primary mode of Origin UNKNOWN
    Secondary mode of Origin OXIDATION
    Primary Ore Control FAULTING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 SERICITIC
    Type of Wallrock Alter. #2 CARBONATE SILIC
    Type of Wallrock Alter. #3 ADV ARGILLIC
    Avg. Thick. Unconsol. Mat. 64.6
    Date of Last Modification 830727
  • Area 1821HA
    Field Value
    Total Surface Area (HA) 1821
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1951
Year of first production 1957

Mining district

District name Pima

Mineral rights holdings

Type of mineral rights Patented
Type of mineral rights State Lease

Land status

Ownership category Mixed

Ownership information

  • Type Owner-Operator
    Owner Asarco (American Smelting And Refining Co.)
    Interest 100
    Home office 180 Maiden Lane, New York, N Y 10038
    Year 1987

Production statistics

  • Year 1977
    Accuracy Estimate
    Description 0.49% Cu (Estimated Grade), 0.017% Mos2 12800000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace MoS2 Molybdenum Molybdenum 0wt-pct
    Major Copper Copper 0wt-pct
  • Year 1979
    Description 0.46% Cu, 0.021% Mos2 2290000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace MoS2 Molybdenum Molybdenum 0wt-pct
    Major Copper Copper 0wt-pct
  • Year 1980
    Description 0.49% Cu, 0.023% Mos2 6630000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace MoS2 Molybdenum Molybdenum 0wt-pct
    Major Copper Copper 0wt-pct
  • Year 1981
    Description 0.46% Cu, Mos2 Grade Not Given 10400000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 0wt-pct
  • Year 1982
    Description 19,690 Mt Cu & 178,460 Kgs Mo 4628000 Mtpy Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 19690mt
    Trace Molybdenum Molybdenum 178.46mt

Reference information

Bibliographic references

  • Geology

    GEOLOGY AND HISTORY

  • Geology

    COOPER, J.R., SOME GEOLOGIC FEATURES OF THE PIMA MINING

  • Geology

    DISTRICT, PIMA COUNTY, ARIZONA, U.S.G.S. BULL. 1112-C,

  • Geology

    1960, 103 PP.

  • Deposit

    HEINRICHS, W.E., JR., PIMA DISTRICT, ARIZONA, A HISTORICAL

  • Deposit

    AND ECONOMIC PERSPECTIVE, AIME 105TH ANNUAL MEETING, LAS

  • Deposit

    VEGAS, NEVADA, FEBRUARY, 1976, 15 PP.

  • Deposit

    HEINRICHS, W.E., JR., AND R.C. THURMOND, A CASE HISTORY OF

  • Deposit

    THE GEOPHYSICAL DISCOVERY OF THE PIMA MINE, PIMA COUNTY,

  • Deposit

    ARIZONA, GEOPHYSICS, V. 19, NO. 3, JULY, 1954, PP. 600-12.

  • Deposit

    MINING WORLD, USE OF GEOPHYSICS PAYS OFF AT PIMA WITH DIS-

  • Deposit

    CLOSURE OF COPPER OREBODY, OCTOBER, 1954, PP. 42-5.

  • Reserve-Resource

    ENGINEERING AND MIN. J., JUNE, 1977, P. 104.

  • Reserve-Resource

    RESERVES AND QUANTITY

  • Reserve-Resource

    ENGINEERING AND MINING JOURNAL, LARGE TRUCK FLEET AT PIMA

  • Reserve-Resource

    MAKES LONG STEEP HAUL, JUNE, 1977, PP. 104-105.

  • Reserve-Resource

    STANDARD OIL COMPANY (INDIANA) 1982 ANNUAL REPORT, 1983,

  • Reserve-Resource

    P 34.

  • Reserve-Resource

    ENGINEERING AND MINING JOURNAL. LARGE TRUCK FLEET AT PIMA

  • Reserve-Resource

    MAKES LONG STEEP HAUL, JUNE 1977, PP. 104-105.

  • Deposit

    MINING

  • Deposit

    PAYDIRT, PIMA MINE'S INCREASED PRODUCTION ON STREAM,

  • Deposit

    JANUARY 29, 1973, PP. 1,3.

  • Deposit

    SKILLINGS, DAVID N., JR., PIMA MINING COMPANY, SKILLINGS

  • Deposit

    MINING REVIEW, V. 61, NO. 12, MARCH 18, 1972, PP. 16-9.

  • Deposit

    SKILLINGS MINING REVIEW, EXPANSION AND IMPROVEMENT AT PIMA

  • Deposit

    COPPER MINE, V. 62, NO. 37, SEPT. 15, 1973, PP. 1, 8-10.

  • Deposit

    MILLING

  • Deposit

    BASSAREAR, J.H., AND H.W. SORSTOKKE, PIMA EXPANSION FOUR

  • Deposit

    USES SEMIAUTOGENOUS GRIND, AIME TRANS., V. 254,

  • Deposit

    DECEMBER, 1963, PP. 297-300; MINING ENGR., MAY, 1973,

  • Deposit

    PP. 37-9.

  • Deposit

    COBURN, JAMES, ET.AL., CYPRUS PIMA MINING COMPANY, PRES.

  • Deposit

    AT ARIZONA AIME SPRING MEETING, MINERAL PROCESSING DIV.,

  • Deposit

    TUCSON, ARIZONA, MAY 17, 1974, 29 PP.

  • Deposit

    DAYTON, STAN, THE QUIET REVOLUTION IN THE WIDE WORLD OF

  • Deposit

    MINERAL PROCESSING, E & MJ, JUNE, 1975, PP. 87-8.

  • Deposit

    ENGR. AND MIN. JOURNAL, E & MJ FLOWSHEET PORTFOLIO, JUNE,

  • Deposit

    1975, PP. 87-8.

Reporter information

Type Date Name Affiliation Comment
Reporter 06-APR-1995 Hite, Alan G. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Asarco (American Smelting And Refining Co.) — acquired by Asarco LLC, subsidiary of Grupo México (2009)
    American Smelting and Refining Co. Filed Chapter 11 in 2005; acquired out of bankruptcy by Grupo México in 2009.

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

External references

Maps centered on this site

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.