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San Xavier Mine

Producer in Pima county in Arizona, United States with commodities Copper Sulfide, Silver, Molybdenum, Copper Oxide
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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. Alteration
  9. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Production statistics
  17. Reserves and resources
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10039668
MRDS ID M050619
Record type Site
Current site name San Xavier Mine
Alternate or previous names San Xavier North

Geographic coordinates

Geographic coordinates: -111.08152, 32.02762 (WGS84)
Relative position 15 MI S OF TUCSON, 2.5 MI N OF MISSION PORPHYRY COPPER DEPOSIT.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Xavier Mission(quadrangle 1:24,000 scale)

Silver Bell Mountains(quadrangle 1:100,000 scale)

Tucson(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

BIA(Federal land areas administered by BIA)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 016S 012E 23,24 NE4 (23); NW4 (24) Arizona

Commodities

Commodity Importance
Copper Sulfide Primary
Silver Secondary
Molybdenum Tertiary
Copper Oxide Primary

Comments on the commodity information

  • CHALCOCITE BLANKET AVERAGES 0.6 TO 1.0% CU. OXIDE COPPER GRADE IS ABOUT 3.8% CU.

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Malachite Ore
Melaconite Ore
Molybdenite Ore
Pyrite Ore

Alteration

  • (Local) Phyllic

Analytical data

Result 1-3% SULFIDES BY VOLUME
Result PY:CPY RATIO 1:1 TO 1:3 IN ORE, 10:1 TO 3 :1 IN PYRITE ZONE

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock
    Rock unit name Bisbee Group
    Rock description Bisbee Group

Nearby scientific data

(1) -111.08152, 32.02762
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Folding Of Sedimentary Rocks, San Xavier Fault Is Lower Boundary Of Mineralized Rocks

Ore body information

  • General form ENRICHMENT BLANKET
    Depth to bottom 609.6M

Controls for ore emplacement

  • Clastic Wall Rocks, Stratigrapy. Mo & Ag Concentrated Also In Porphyry

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1955
Discoverer Asarco Geologists

Production statistics

  • Year 1972
    Period 1967-1972
    Material ORE, LEACH
    Accuracy Estimate
    Description Cp_Grade: ^0.76% Cu, 0.02 Oz/T Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 0g/mt
    Trace Ore Copper Copper 1wt-pct

Comments on the production information

  • PRODUCTION OF CU-BEARING FLUX BEGAN IN 1968. COPPER OXIDE ORE PRODUCTION BEGAN IN 1973.

Reserves and resources

  • Type In-situ
    Estimate year 1978
    Total resources 75692000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Sulfide CuS 0.52 wt-pct Copper Major 1978
    Copper Oxide CuOx 1.48 wt-pct Copper Major 1978

Comments on the workings information

  • LARGE OPEN PIT

Comments on development

  • DRILLING BEGAN IN 1957 AFTER COMPETITIVE BIDDING TO THE PAPAGO INDIANS.

Reference information

Bibliographic references

  • Deposit

    PAYDIRT - AUGUST 28, 1972; OCT 23, 1972; MARCH 26, 1973.

  • Deposit

    E & MJ, MARCH, 1972.

  • Deposit

    KEITH, 1974, ABM BULL 189, P. 138.

  • Deposit

    KING, 1978, AZ GEOL SOC DIGEST, V. 11, P. 101-102.

  • Deposit

    GREELEY, 1978, ADMR SPEC REPT NO. 27.

  • Other Database

    CIMRI

  • Production

    KEITH, 1974; KING, 1978

  • Reserve-Resource

    GREELEY, 1978.

General comments

Subject category Comment text
Deposit UNDER ALLUVIAL COVER
Deposit THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M050619 WITH RECORD M030538 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEODORE, USGS. SAN XAVIER IS NOW PART OF THE MISSION COMPLEX. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1983 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

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.