Cerro Iman

Producer in Chile with commodity Iron
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Reserves and resources
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10078151
MRDS ID W026321
Record type Site
Current site name Cerro Iman
Related records 10182261

Geographic coordinates

Geographic coordinates: -70.4162, -27.25581 (WGS84)
Elevation 420
Relative position COPIAPO, 14 KM NE OF

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Magnetite Ore
Biotite Gangue

Alteration

  • (Local) Propylitic

Analytical data

Result CHEMISTRY OF RESERVES IN PERCENT: FE, 62
Result SIO2 , 3.4
Result S, TRACE
Result AND P, NIL, WITH TIO2 , 0.18
Result MNO, 0.10
Result CAO, 1.4
Result AND AL2O3 , 3.7 AS SIGNIFICANT OTHER COMPONENTS.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Metamorphic Rock > Hornfels

Nearby scientific data

(1) -70.4162, -27.25581

Economic information

Geologic structures

Type of structure Local
Structure description Fault At N75w, 37 Se

Ore body information

  • General form TABULAR BODY OF TRAPEZOIDED SHAPE, LENTICULAR
    Strike NE
    Dip 40 SE- 90 E
    Length 800M
    Width 200M
    Depth to bottom 70M

Controls for ore emplacement

  • Deposit Lies Near A Contact Between Andean Diorite And Metamorphic Porphyrite

Comments on the geologic information

  • AT CONTACT BETWEEN LOWER CRETACEOUS AND UPPER CRETACEOUS DIORITE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Cerro Iman

Ownership information

  • Type Owner
    Owner Cia Minera San Andreas

Production statistics

  • Year 1966
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^Shipping Grade (Approx. 64 %) Fe Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Iron Iron 64wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1970
    Measured 13000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 60 wt-pct Iron Major 1970
  • Type In-situ
    Estimate year 1980
    Total resources 7000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 62 wt-pct Iron Major 1980

Comments on the reserve resource information

  • RUIZ FULLER, 1965 , CONFIRMS BETWEEN 2 AND 20 MILLION METRIC TONS ( 64 % FE ) ORE
  • RUIZ FULLER, 1965 , CONFIRMS BETWEEN 2 AND 20 MILLION METRIC TONS ( 60 % FE ) ORE.

Workings at the site

  • Type of workings Surface
    Overall depth 200M

Comments on the workings information

  • TRAPEZOIDAL BASES ARE 160 AND 50 M. LONG. PIT IS 800 M X 400 M WITH 15 TERRACES.

Reference information

Bibliographic references

  • Deposit

    RUIZ FULLER, CARLOS, 1965 , GEOLOGIA Y YACIMIENTOS METALIFEROS DE CHILE (GEOLOGY AND METAL DEPOSITS OF CHILE): CHILE INST. GEOL. INV., 305 P., TABLES. (SPANISH) ( 430 ) R858G

  • Deposit

    ALVARADO, BENJAMIN, 1970 , IRON ORE DEPOSITS OF SOUTH AMERICA, IN SURVEY OF WORLD IRON ORE RESOURCES -- OCCURRENCE AND APPRAISAL: NEW YORK, UNITED NATIONS, P. 302 - 380

  • Deposit

    RUIZ, C. AND PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE: SANTIAGO, 334 P.

  • Deposit

    DIAZ, ET AL., 1980, MAPA METALOGENICO PRONOSTICO DE LA III REGION: CORPORACION DE FOMENTO DE LA PRODUCCION, SANTIAGO (5 VOLS.)

  • Deposit

    RUIZ, C., 1943, LOS YACIMIENTOS DE FE DE LA REGION NOROCCIDENTAL DE COPIAPO: BOL. SOC. NAC. DE MIN., 55, P. 820-827.

  • Deposit

    RUIZ, C., Y CAPURRO, J., 1943, INFORME SOBRE LOS YACIMIENTOS DE HIERRO DE LA REGION DE COPIAPO: INEDITO (DEMIPE)

  • Other Database

    CIMRI

  • Production

    ALVARADO, 1970

  • Reserve-Resource

    ALVARADO, 1970; DIAZ ET AL, 1980

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1973 Cooper, Margaret (Shaffer, Glenn L.) U.S. Geological Survey
Updater 01-SEP-1990 Williams, William C. University of Arizona

Beyond USGS

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