Tres Amigos

Past Producer in Chile with commodity Copper
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. Economic information about the deposit and operations
  11. Mining district
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10057975
MRDS ID TC03687
Record type Site
Current site name Tres Amigos

Geographic coordinates

Geographic coordinates: -68.96785, -22.31255 (WGS84)
Elevation 2930

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Atacamite Ore
Chrysocolla Ore
Quartz Gangue

Alteration

  • (Local) Propylitic, Silicic

Analytical data

Result 0.79% CU, 1.8 G/T AG

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Fortuna Granodiorite
    Rock description Fortuna Granodiorite
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -68.96785, -22.31255

Economic information

Economic information about the deposit and operations

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

Mining district

District name W Chuquicamata

Workings at the site

  • Type of workings Surface
    Area 0.18HA
    Overall depth 9M
    Overall length 54.86M
    Overall width 30M

Reference information

Bibliographic references

  • Deposit

    BORIC, R., DIAZ, F., AND MAKSAEV, V., 1984 COMPLEMENTO MAPA METALOGENICO, II REGION: GERENCIA DE DESAROLLO, SANTIAGO, (12 VOLS.).

  • Deposit

    VEGA, J. Y BORDONES, L., 1981, GEOLOGIA DEL CUADRANGULO CERROS DE PAQUI Y PARTE OESTE DEL CUADRANGULO CONCHI: MEMORIA DE TITULO, UNIVERSIDAD DEL NORTE, ANTOFAGASTA, 169 P.

  • Deposit

    ENAMI, 1967-68, #2145.

  • Other Database

    CIMRI

  • Reserve-Resource

    ENAMI, 1967.

General comments

Subject category Comment text
Deposit COVERS AREA OF 60M X 30M. FRACTURE DENSITY IS 5-7 PER METER AND FRACTURES RANGE IN WIDTH FROM 0.5-2.0CM. FRACTURES GENERALLY ORIENTED PERPENDICULAR TO EACH OTHER.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1990 Williams, William C. University of Arizona

Beyond USGS

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