1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Defensa

Past Producer in Chile with commodity 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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10059116
MRDS ID TC05595
Record type Site
Current site name Defensa

Geographic coordinates

Geographic coordinates: -70.19953, -27.66414 (WGS84)
Elevation 1250

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
Chalcocite Ore
Digenite Ore

Alteration

  • (Local) Phyllic, Porpylitic

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Cerrillos Formation
    Rock description Cerrillos Formation
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -70.19953, -27.66414
ListMap

Economic information

Ore body information

  • Length 50M
    Width 10M

Controls for ore emplacement

  • Associated With Felsic Dike

Economic information about the deposit and operations

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

Mining district

District name San Marcos

Workings at the site

  • Type of workings Underground
    Overall depth 80M

Reference information

Bibliographic references

  • Deposit

    DIAZ, ET AL., 1980, MAPA METALOGENICO PRONOSTICO DE LA III REGION: CORPORACION DE FOMENTO DE LA PRODUCCION, SANTIAGO (5 VOLS.)

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1991 Williams, William C. University of Arizona

Beyond USGS

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

Maps centered on this site