Minita-Despreciada Y Portezuelo

Past Producer in Chile with commodities Copper, Molybdenum, Uranium
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 10057851
MRDS ID TC03520
Record type Site
Current site name Minita-Despreciada Y Portezuelo
Alternate or previous names Rosario

Geographic coordinates

Geographic coordinates: -70.16705, -22.06838 (WGS84)

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary
Molybdenum Secondary
Uranium Tertiary

Materials information

Materials Type of material
Atacamite Ore
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Covellite Ore
Malachite Ore
Molybdenite Ore
Hematite Gangue
Magnetite Gangue
Pyrite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -70.16705, -22.06838

Economic information

Ore body information

  • Strike N70E; N45E
    Dip 60-90/?
    Length 750M
    Width 2M
  • Dip 60-90/?

Controls for ore emplacement

  • Fractures

Comments on the geologic information

  • RB/SR WHOLE ROCK DATE AT 154.7MA +/-13.4 K/AR BIOTITE DATE IS 165MA +/-3

Economic information about the deposit and operations

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

Mining district

District name Tocopilla

Production statistics

  • Year 1965
    Period 1920-65
    Material CU
    Accuracy Accurate
    Description Cp_Grade: ^3.1%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 3wt-pct
  • Year 1965
    Period 1920-65
    Material CU
    Accuracy Accurate
    Description Cp_Grade: ^16%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 16wt-pct

Workings at the site

  • Type of workings Underground
    Overall depth 670M

Comments on development

  • ECON.COM: DEPOSIT NEARLY EXHAUSTED

Reference information

Bibliographic references

  • 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

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

  • Deposit

    KLOHN, E., 1961, YACIMIENTOS DE COBRE Y URANIO EN EL DISTRITO MINERO DE TOCOPILLA: MEMORIA, UNIVERSIDAD DE CHILE, 149 P.

  • Deposit

    ROGERS, G., 1985, A GEOCHEMICAL TRAVERSE ACROSS NORTHERN CHILE: PH.D. DISSERTATION, THE OPEN UNIVERSITY, LONDON, 335 P.

  • Deposit

    ENAMI, 1971, #2015.

  • Deposit

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

  • Other Database

    CIMRI

  • Production

    ENAMI, 1971; RIUZ & PEEBLES, 1988.

  • Reserve-Resource

    ENAMI, 1971.

General comments

Subject category Comment text
Deposit SIX EN ECHELON VEINS, 10-50M APART, WITH AN OVERALL TREND OF N80E. OXIDIZED TO 200M; SUPERGENE ENRICHMENT TO 340M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1989 Williams, William C. University of Arizona

Beyond USGS

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