Porvenir

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

Geologic information

Identification information

Deposit ID 10057667
MRDS ID TC03292
Record type Site
Current site name Porvenir

Geographic coordinates

Geographic coordinates: -70.24537, -23.28503 (WGS84)
Elevation 1100

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
Malachite Ore
Calcite Gangue
Limonite Gangue
Quartz Gangue
Specularite Gangue

Alteration

  • (Local) Argillic, Silicic, Propylitic

Host and associated rocks

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

Nearby scientific data

(1) -70.24537, -23.28503

Economic information

Ore body information

  • General form IRREGULAR
    Strike N26E; N20W
    Dip 55SE; 80E
    Length 150M
    Width 12M
  • General form IRREGULAR
    Strike N26E; N20W
    Dip 55SE; 80E

Controls for ore emplacement

  • Fault

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 El Desesperado

Production statistics

  • Year 1961
    Material CU
    Accuracy Accurate
    Description Ap_Grade: ^2.8%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Copper Copper 3wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1967
    Total resources 38000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.8 wt-pct Copper Major 1967

Comments on the reserve resource information

  • 10,000T OF TAILINGS AT 0.5% (SOLUBLE)

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 180M
    Overall length 137.16M

Comments on the workings information

  • WORKINGS DILAPIDATED

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

  • Deposit

    ENAM, 1967, #22312.

  • Other Database

    CIMRI

  • Production

    ENAMI, 1967.

General comments

Subject category Comment text
Deposit MINERALIZATION ESPECIALLY CONCENTRATED IN AMYGDULES

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.