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San Juan De La Costa

Plant 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. Land status
  12. Ownership information
  13. Production statistics
  14. Reserves and resources
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10303434
MAS/MILS ID 2010050015
Record type Site
Current site name San Juan De La Costa

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -110.88394, 24.36708 (WGS84)
Elevation 40
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) -110.88394, 24.36708
ListMap

Economic information

Ore body information

  • Thickness 15M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Shape of Orebody #2 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Type of Wallrock Alter. #1 UNKNOWN
    Date of Last Modification 940606

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Non-metallic
Significant Yes
Discovery year 1976
Mining method Coal Mining Methods - Continuous
Year of first production 1980
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mineral rights holdings

Type of mineral rights Unknown
Type of mineral rights Other

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner Roca Fosforica Mexican, S. A -(Rofomex-Government Of Mexico)
    Interest 100
    Home office Mexico
    Year 1985
    First year 1993
    Last year 1993

Production statistics

  • Year 1993
    Description P2o5 Concentrate 500000 St/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major P2O5 Conc. Phosphorus-Phosphates Phosphorus 551155.5mt

Comments on the production information

  • AFTER CONVERSION TO UNDERGROUND CONTINOUS MINING (1986) METHODS P2O5 CONCENTRATE PRODUCTION IS AT 500,000 MT PER YR.
  • FINAL PRODUCT DESTINATION IS LAZERO CARDENAS FOR PHOSPHORIC ACID PRODUCTION.

Reserves and resources

  • Type In-situ
    Estimate year 1980
    Measured 50000000mt ore
    Demonstrated 50000000mt ore
    Total resources 50000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 19 wt-pct Phosphorus Major 1980
  • Type In-situ
    Estimate year 1987
    Indicated 24000000mt ore
    Demonstrated 24000000mt ore
    Total resources 24000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 18 wt-pct Phosphorus Major 1987
  • Type In-situ
    Estimate year 1987
    Indicated 20000000mt ore
    Demonstrated 20000000mt ore
    Total resources 20000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 18 wt-pct Phosphorus Major 1987
  • Type In-situ
    Estimate year 1993
    Total resources 45359250mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 19 wt-pct Phosphorus Major 1993

Comments on the reserve resource information

  • M1C1=M9C4. 24 MIL MT OF THE RESOURCE MAY BE MINED BY OPEN PIT, WHILE THE REMAINING 20 MIL MT WOULD BE MINED BY UNDERGROUND METHODS. BOTH UNDERGROUND AND OPEN PIT OPERATIONS ARE CURRENTLY BEING USED.

Workings at the site

  • Type of workings Surface
    Area 3300HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Primary Material Cover SAND, SILT
    Hardness of Ore SAND, SILT
    Avg. Bench Height (meters) 10
    Capacity 4286
    Capacity Units MT ORE/DAY
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1985
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method CONTINUOUS
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    1st Condition of Workings OPEN
    Capacity 1428
    Capacity Units MT ORE/DAY
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1985

Comments on other economic factors

  • OPEN PIT MINING STOPED IN 1986. CONTOUR OPEN PIT METHODS WERE USED IN THE OPERATION TO RECOVER ORE FROM THE UPPER BEDS OF THE DEPOSIT.
  • UNDERGROUND MINING METHODS STARTED IN 1986. CONTINUOUS MINING METHODS ARE USED IN THE UNDERGROUND OPERATION TO RECOVER ORE FROM THE FIFTH BED (HUMBOLT-SUPERIOR) OF THE DEPOSIT.

Reference information

Bibliographic references

  • Deposit

    MEXICO, OPPORTUNITIES IN INDUSTRIAL MINERALS; 29TH FORUM ON

  • Deposit

    THE GEOLOGY OF INDUSTRIAL MINERALS, BY A. ALATORRE, P.

  • Deposit

    HARBEN AND KEN SANTINI, LONG BEACH, CA. APRIL 25-30, 1993

  • Deposit

    PAGES 31-32.

  • Reserve-Resource

    CLARKE, GERRY, MEXICAN PHOSPHATE - A STRIVE FOR

  • Reserve-Resource

    SELF-SUFFICIENCY, INDUSTRIAL MINERALS, # 152, PP. 79-85,

  • Reserve-Resource

    MAY 1980.

  • Reserve-Resource

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

  • Reserve-Resource

    CORP. LTD., 1987, LONDON ENGLAND, PP. 59-60.

  • Reserve-Resource

    SEE REF. "MI" 001-004 ABOVE.

  • Deposit

    BUNCH, J. P., PERSONAL VISIT TO FACILITY AT SAN JUAN

  • Deposit

    DE LA COSTA, FEBRUARY 1981.

  • Deposit

    GONZALEZ, C. GARCIA, MEXICAN PROJECTS FOR THE PRODUCTION OF

  • Deposit

    PHOSPHATE ROCK IN LOWER CALIFORNIA, 1980.

  • Deposit

    LAWYER, J. E., TRIP REPORT - MEXICO, JUNE 5, 1980.

  • Deposit

    MEXICO - PHOSPHATE ROCK PRODUCER OF THE FUTURE, PHOSPHORUS &

  • Deposit

    POTASSIUM NO. 109, PP. 20-24, SEPT./OCT. 1980.

  • Deposit

    MILLER, DALE A., BAJA CALIFORNIA TRIP - MAY 27-30, 1980.

  • Deposit

    RIVERA, JESUS OJEDA, GENERAL GEOLOGY AND PHOSPHATE DEPOSITS

  • Deposit

    OF SOUTHERN BAJA CALIFORNIA, MEXICO, 1981.

  • Deposit

    SALAS, G. P., SEDIMENTARY PHOSPHATE DEPOSITS IN BAJA

  • Deposit

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

General comments

Subject category Comment text
Deposit OVERALL STRUCTURE OF THE REGION IS A SHALLOW SYNCLINE WHICH HAS A NORTHWESTERN TREND AND DIPS NORTHEAST 5-6 DEGREES MINERALIZED ZONE COVERS 3300 HECTARES AND CONSISTS OF FIVE HORIZONTAL BEDS THE TWO ORE BEDS WHICH ARE RECOGNIZED TO HAVE COMMERCIAL POTENTIAL ARE THE HUMBOLDT AND HUMBOLDT SUPERIOR, 1.8M AND 0.6M, RESPECTIVELY.

Reporter information

Type Date Name Affiliation Comment
Reporter 23-SEP-96 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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