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  3. Mineral Resource Data System (MRDS)

Sonia Alta, Sonia Baja

Past Producer in Chile with commodities Gold, Copper
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Production statistics
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10104528
MRDS ID TC03834
Record type Site
Current site name Sonia Alta, Sonia Baja

Geographic coordinates

Geographic coordinates: -69.97952, -26.81359 (WGS84)
Elevation 1900

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Gold Primary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrite Ore
Calcite Gangue
Quartz Gangue

Alteration

  • (Local) Argillic

Analytical data

Result 20-40 G/T AU
Result 5-10 G/T AU IN PRIMARY ZONE.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Bandurrias Formation
    Rock description Bandurrias Formation
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -69.97952, -26.81359
ListMap

Economic information

Ore body information

  • Strike 90
    Dip 75N
    Length 600M
    Width 0.25M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Inca De Oro

Production statistics

  • Year 1972
    Period 1940-72
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^33.7 G/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 34g/mt
  • Year 1972
    Period 1940-72
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^9 G/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 9g/mt

Workings at the site

  • Type of workings Underground
    Overall depth 320M

Reference information

Bibliographic references

  • Deposit

    RUIZ, C. Y PEEBLES, F., 1988, YACIMIENTOS METALIFEROS DE CHILE; SANTIAGO, 334 P.

  • Deposit

    FLORES, H. Y RUIZ, C., 1946, ESTUDIO GEOLOGICO DEL DISTRITO DE INCA DE ORO, PROVINCIA ATACAMA: IPIMIGEO 2, 2, P. 243-273.

  • Deposit

    CAMUS, F. Y DUHALDE, M.A., 1982, GEOLOGIA DE LOS YACIMIENTOS HIDROTERMALES DE ORO EN CHILE: REV. GEOL. DE CHILE, 17, P. 47-70.

  • Deposit

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

  • Deposit

    SALINAS, M., 1973, IIG #1552.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit VERTICAL ZONATION OF, FROM SURFACE, QTZ-PY-AU TO CP-PY-QTZ TO PY-QTZ-CAL PRIMARY ZONE AT 60M

Reporter information

Type Date Name Affiliation Comment
Reporter 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.

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