San Juan

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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  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 10057939
MRDS ID TC03645
Record type Site
Current site name San Juan

Geographic coordinates

Geographic coordinates: -70.17788, -22.13088 (WGS84)
Elevation 680

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
Chalcocite Ore
Chrysocolla Ore
Cuprite Ore
Malachite Ore
Limonite Gangue
Pyrite Gangue

Alteration

  • (Local) Argillic, 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) -70.17788, -22.13088

Economic information

Geologic structures

Type of structure Local
Structure description Fault At 90, 90

Ore body information

  • Strike N75E
    Dip 70S
    Length 2000M
    Width 3M
    Depth to bottom 500M

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 Punta Blanca-Cerro Tres Puntas

Reserves and resources

  • Type In-situ
    Estimate year 1966
    Total resources 123000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.5 wt-pct Copper Major 1966

Workings at the site

  • Type of workings Underground
    Area 0.563HA
    Overall depth 330M
    Overall length 205.74M
    Overall width 25M

Comments on the workings information

  • SHAFT, ADIT

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

    ENAMI, 1971, #1023.

  • Deposit

    ENAMI, 1966, #2053R.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit LENS AT 300M MIGHT BE CONTINUATION OF SANTE FE DEPOSIT. LEACHED TO 120M, OXIDIZED TO 240M, TRANSITION ZONE TO 270M, AND SECONDARY SULFIDE ZONE TO AT LEAST 330M.

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.