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San Hilario

Prospect in Baja California Sur, Mexico with commodity Phosphorus-Phosphates
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mineral rights holdings
  11. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10181780
MAS/MILS ID 2010050003
Record type Site
Current site name San Hilario

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -111.50065, 24.41708 (WGS84)
Elevation 200
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Baja California Sur

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Materials information

Materials Type of material
Collophane Unknown
Diatomite Unknown
Quartz Unknown

Nearby scientific data

Ore Body (1) -111.50065, 24.41708
ListMap

Economic information

Ore body information

  • Strike N32W
    Dip 04E
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. UNKNOWN
    Strike And Dip N32W:04E
    Date of Last Modification 830202

Comments on the geologic information

  • STRIKE RANGES FROM 30-35 DEGREES NORTHWEST; DIP RANGES FROM 3-5 DEGREES NORTHEAST. DIMENSIONS RELATED TO OREBODY ARE UNKNOWN. MINERALIZED ZONE CONSISTS OF TWO BEDS: THE LOWER OR MAIN BED OUTCROPS FOR 70 KILOMETERS AND RANGES IN THICKNESS FROM 0.6 TO 1.2 METERS; THE UPPER BED OUTCROPS FOR 25 KILOMETERS AND RANGES IN THICKNESS FROM 0.5 TO 1.2 METERS.

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Non-metallic
Significant No
Discovery year 1974
Milling method Unspecified

Mineral rights holdings

Type of mineral rights Other

Ownership information

  • Type Owner
    Owner Roca Fosforic Mexicana S. A. (Rofomex)- Government Of Mexico
    Interest 100
    Home office Mexico
    Year 1981

Comments on the production information

  • OTHER METHOD OF EXPLORATION WAS AERIAL RADIOMETRIC SURVEY.

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Total resources 72547000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 17.89 wt-pct Phosphorus Major 1980
  • Type In-situ
    Estimate year 1980
    Total resources 167424000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 13.6999 wt-pct Phosphorus Major 1980
  • Type In-situ
    Estimate year 1980
    Total resources 123116000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 14.03 wt-pct Phosphorus Major 1980
  • Type In-situ
    Estimate year 1980
    Total resources 97251000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 11.06 wt-pct Phosphorus Major 1980
  • Type In-situ
    Estimate year 1987
    Indicated 841000000mt ore
    Demonstrated 841000000mt ore
    Total resources 841000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 14 wt-pct Phosphorus Major 1987

Comments on the reserve resource information

  • NOT INCLUDED IN STUDY, ONLY INFERRED RESOURCES ESTIMATED. M9C4=M1C1.

Reference information

Bibliographic references

  • Reserve-Resource

    WORLD SURVEY OF PHOSPHATE DEPOSITS, 5TH ED. BRITISH SULPHUR

  • Reserve-Resource

    CORP. LTD. 1987, LONDON ENGLAND, P 58.

  • Deposit

    BRITISH SULPHUR, 1980.

  • Deposit

    CLARKE, GERRY, MEXICAN PHOSPHATE - A STRIVE FOR SELF-SUFFI-

  • Deposit

    CIENCY, INDUSTRIAL MINERALS NO. 152, MAY 1980,PP.79-86.

  • Deposit

    GONZALES, C. GARCIA, MEXICAN PROJECTS FOR PRODUCTION OF

  • Deposit

    PHOSPHATE ROCK IN LOWER CALIFORNIA, 1980.

  • Deposit

    RIVERA, JESUS OJEDA, GENERAL GEOLOGY AND PHOSPHATE DEPOSITS

  • Deposit

    OF SOUTHERN BAJA CALIFORNIA, MEXICO, 1981.

  • Deposit

    RIVERA, J.L., RESUMEN DE DATOS ESTRATIGRAFICOS Y ESTRUCTUR-

  • Deposit

    ALES DE LA FORMACION MONTERREY QUE AFLORA EN EL AREA DE

  • Deposit

    SAN HILARIO, BAJA CALIFORNIA SUR (SUMMARY OF THE

  • Deposit

    STRATIGRAPHIC AND STRUCTURAL DATA ON THE MONTERREY

  • Deposit

    FORMATION WHICH OUTCROPS IN THE SAN HILARIO AREA, BAJA

  • Deposit

    CALIFORNIA (SUR), CONSEJO DE RECURSOS MINERALES

  • Deposit

    (MINERAL RESOURCES COUNCIL), MEXICO, 1979.

  • Deposit

    ROFOMEX, MOVES MEXICO TOWARD PHOSPHATE SELF-SUFFICENCY,

  • Deposit

    E & MJ, JULY 1981.

  • Deposit

    SALAS, G.P., SEDIMENTARY PHOSPHATE DEPOSIT IN BAJA CALIFOR-

  • Deposit

    NIA, MEXICO, AIME 78-H-75, MARCH 1978.

General comments

Subject category Comment text
Deposit PREVIOUS EVALUATION AUG. 16, 1982 "IT IS NOT KNOWN WHEN THE DEPOSIT WILL BE DEVELOPED,IF EVER" (Z-W INC., USBOM CONTRACT NO. J0100122, NARATIVE). DUE TO CONTINUED POOR PHOSPHATE PRICES AND PRODUCTION PROBLEMS AT SAN JUAN DE LA COSTA, DEVELOPMENT OF THIS DEPOSIT IS UNCERTAIN IN THE NEAR FUTURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 29-DEC-94 Fantel, Richard J. U.S. Bureau of Mines

Beyond USGS

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

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