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San Juan De La Costa

Producer 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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10048963
MRDS ID MX00151
Record type Site
Current site name San Juan De La Costa
Alternate or previous names Rofomex

Geographic coordinates

Geographic coordinates: -110.70285, 24.38288 (WGS84)
Elevation 40

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

Comments on the location information

  • ESTIMATED TO WITHIN 5 SECONDS.

Commodities

Commodity Importance
Phosphorus-Phosphates Primary

Materials information

Materials Type of material
Apatite Ore
Quartz Gangue

Analytical data

Result 32% P2O5

Mineral occurrence model information

Model code 243
USGS model code 34c
Deposit model name Phosphate, upwelling type

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Monterrey Formation;Salada Formation
    Rock description Monterrey Formation;Salada Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Phosphorite

Nearby scientific data

(1) -110.70285, 24.38288
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description La Purisima Iray Basin

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Deposit size Medium
Significant No
Discovery year 1976
Year of first production 1980
Year of last production 1988

Mining district

District name La Paz

Ownership information

  • Type Owner-Operator
    Owner Roca Fosforica Mexicana Sa De Cv
  • Type Owner-Operator
    Owner Comision De Fomento Minero
    Interest 92
  • Type Owner-Operator
    Owner Azufrera Panamericana Sa, Aka Rofomex
    Interest 8

Production statistics

  • Year 1985
    Material CONC P
    Accuracy Estimate
    Description Ap_Grade: ^32% P2o5
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    P2O5 Conc. Phosphorus-Phosphates Phosphorus 32wt-pct

Comments on the production information

  • AS OF 1980, PRODUCED 730,000 MTPY CONCENTRATE THAT AVERAGES 30% P2O5. ORE GRADES 17-18% P2O5. IN 1982 1.8 MIL MT ORE PLANT CAPACITY TO PRODUCE 750,000 TPY CONCENTRATE WITH MAX. CONTENT 67.7% BPL AND POSSIBLY UP TO 300,000 TPY GROUND PHOSPHATE ROCK FOR DIRECT APPLICATION.

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 50000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 18 wt-pct Phosphorus Major 1990

Comments on the reserve resource information

  • "50 MILLION TONS PROVED".

Workings at the site

  • Type of workings Surface/Underground
    Area 3300HA

Comments on the workings information

  • OPENPIT MINING AND SELECTIVE UNDERGROUND ROOM-AND-PILLAR OPERATION.

Reference information

Bibliographic references

  • Deposit

    TERRONES L., A.J., 1986, MEXICAN MINING: MINING MAGAZINE, V. 155, NO. 5, P. 459.

  • Deposit

    MINING JOURNAL, 1986, V. 307, NO. 7888, P. 299.

  • Deposit

    COX, D.P., AND SINGER, D.A., EDS., 1986, MINERAL DEPOSIT MODELS: U.S. GEOLOGICAL SURVEY BULLETIN 1693, 379 P.

  • Deposit

    GRIFFITHS, JOYCE, 1988, MEXICO'S INDUSTRIAL MINERALS--MEETING MANANA'S CHALLENGE: INDUSTRIAL MINERALS, NO. 250, P. 19-41.

  • Deposit

    HARBEN, P.W., AND BATES, R.L., 1991, PHOSPHATE ROCK, IN INDUSTRIAL MINERALS--GEOLOGY AND WORLD DEPOSITS: LONDON, INDUSTRIAL MINERALS DIVISION, METAL BULLETIN PLC, P. 190-204.

  • Deposit

    WHITE, LANE, 1980, MINING IN MEXICO: FEEDING NEEDED RAW MATERIALS TO A RAPIDLY EXPANDING ECONOMY: ENGINEERING MINING JOURNAL, V. 181, NO. 11, P. 62-194.

  • Deposit

    BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON.

  • Deposit

    CLARKE, G., 1980, MEXICAN PHOSPHATE: INDUSTRIAL MINERALS, NO.152, P.79-91.

  • Deposit

    ANONYMOUS, 1980, MEXICO-PHOSPHATE ROCK PRODUCER OF THE FUTURE: PHOSPHORUS & POTASSIUM, NO.109, P. 20-24.

  • Other Database

    CIMRI

  • Production

    MINING JOURNAL, 1986; INDUSTRIAL MINERALS, 1980; MINING ANNUAL REVEIW 1981.

  • Reserve-Resource

    HARBEN AND BATES, 1991; INUDSTRIAL MINERALS, 1980.

General comments

Subject category Comment text
Deposit THIS RECORD CONTAINS DATA FROM DUPLICATE RECORD ISM0382 WHICH HAS BEEN DELETED FROM MAIN MRDS. ; INFO.SRC : 1 PUB
Deposit THIS RECORD CONTAINS DATA FROM DUPLICATE RECORD ISM0382 WHICH HAS BEEN DELETED FROM MAIN MRDS.
Deposit MONTERREY FM HAS AT LEAST 8 DIFFERENT PHOSPHATIC BEDS WHICH ARE UP TO 15 FT THICK. THE HUMBOLDT BED CONTAINS UP TO 90% PHOSPHATIC OOLITES. THE DEL RIO BED IS SIMILAR IN COMPOSITION, BUT IS ONLY 2.5 FT THICK.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1988 Leonard, Kenneth R. (Page, Norman J.) U.S. Geological Survey
Updater 01-JUN-1990 Orris, Greta J. U.S. Geological Survey
Updater 27-FEB-1995 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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