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  3. Mineral Resource Data System (MRDS)

Churrumata

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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10104523
MRDS ID TC03811
Record type Site
Current site name Churrumata
Alternate or previous names Andacollo

Geographic coordinates

Geographic coordinates: -71.11454, -30.23079 (WGS84)
Elevation 1040

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Gold Primary
Copper Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Unknown

Alteration

  • (Local) Propylitic

Analytical data

Result 2 G/T AU
Result 0.5-1 G/T AU IN PRIMARY ZONE

Host and associated rocks

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

Nearby scientific data

(1) -71.11454, -30.23079
ListMap

Economic information

Ore body information

  • Strike N20W
    Dip 30E
    Thickness 9M

Controls for ore emplacement

  • Bedding

Economic information about the deposit and operations

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

Mining district

District name Andacollo

Ownership information

  • Type Owner
    Owner Dayton Development Corp.

Production statistics

  • Year 1950
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^4.5-8 G/T Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Gold Gold 6g/mt

Reserves and resources

  • Type In-situ
    Estimate year 1990
    Total resources 31700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.119 g/mt Gold Major 1990
    Copper Cu 2.8 wt-pct Copper Major 1990

Comments on the reserve resource information

  • ESTIMATES ONLY INCLUDED DATA FROM 238 DRILL HOLES (73 OTHERS NOT INCLUDED). AREA EXPLORED INCLUDES CHURRUMATA, MANTO SOCORRO, AND TRES PERLAS MINES.

Comments on development

  • CHEVRON RESOURCES & DAYTON DRILLED OVER 300 HOLES (31,000M; ADDITIONAL 15,000M PLANNED).

Reference information

Bibliographic references

  • Deposit

    MINING MAGAZINE, 1989 &1990 (OCT., FEB., MAY), P. 254, 96, 328.

  • Deposit

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

  • 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

    FRUTOS, J. AND PINCHEIRA, M., 1986, FICHAS METALOGENICAS DE YACIMIENTOS MINERALES METALICOS CHILENOS, IN FRUTOS, J., OYARZUN, J., AND PINCHEIRA, M., EDS., GEOLOGIA Y RECURSOS MINERALES CHILENOS: UNIVERSIDAD DE CONCEPCION, CONCEPCION, P. 841-888.

  • Deposit

    ENAMI, 1946, #4310.

  • Deposit

    SERPLAC, 1981, INVENTARIO DE LOS RECURSOS MINERALES DE LA IV REGION: SANTIAGO (28 VOLS.).

  • Other Database

    CIMRI

  • Reserve-Resource

    MINING MAGAZINE, 1990.

General comments

Subject category Comment text
Deposit OXIDIZED TO 10M; CONTROLLED BY FRACTURES.

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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