Rosita

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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  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 10057938
MRDS ID TC03644
Record type Site
Current site name Rosita

Geographic coordinates

Geographic coordinates: -70.20622, -22.12922 (WGS84)
Elevation 200

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
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Calcite Gangue
Hematite Gangue
Limonite Gangue
Pyrite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name La Negra Formation
    Rock description La Negra Formation
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -70.20622, -22.12922

Economic information

Ore body information

  • General form IRREGULAR
    Strike 90/0
    Dip 85S/24E
    Length 50M
    Width 0.3M

Controls for ore emplacement

  • Fault/Bedding

Comments on the geologic information

  • PREHNITE-PUMPELLYITE METAMORPHISM

Economic information about the deposit and operations

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

Mining district

District name Punta Blanca-Cerro Tres Puntas

Production statistics

  • Year 1959
    Period 1954-59
    Material CU
    Accuracy Accurate
    Description Cp_Grade: ^6.13%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 6wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Area 0.15HA
    Overall depth 70M
    Overall length 91.44M
    Overall width 15M

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

    LOSERT, 1973, GENESIS OF COPPER MINERALIZATION AND ASSOCIATED ALTERATION IN THE JURASSIC VOLCANICS WITHIN THE BUENA ESPERANZA MINING AREA: UNIVERSIDAD DE CHLE, PUBLIC NO. 40, 64 P.

  • Deposit

    ENAMI, 1960, #2053R.

  • Other Database

    CIMRI

  • Production

    ENAMI, 1960.

General comments

Subject category Comment text
Deposit ALSO DISSEMINATED COPPER.

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.