Julia

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. Production statistics
  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 10058042
MRDS ID TC03768
Record type Site
Current site name Julia

Geographic coordinates

Geographic coordinates: -70.27454, -24.90917 (WGS84)
Elevation 2250

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
Bornite Ore
Chalcopyrite Ore
Calcite Gangue
Gypsum Gangue
Hematite Gangue
Magnetite Gangue
Pyrite Gangue
Quartz Gangue
Specularite Gangue
Tourmaline Gangue

Alteration

  • (Local) Phyllic, Silicic

Analytical data

Result FLUID INCLUSIONS INDICATE PRIMARY MINERALIZATION OCCURRED AT >500C DEG

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -70.27454, -24.90917

Economic information

Geologic structures

Type of structure Regional
Structure description Julia Fault (0, 90)
Type of structure Local
Structure description Strike Slip Fault At N70w, 60sw; Clay-Filled Structures At N39w, 90.

Ore body information

  • General form LENTICULAR
    Strike 0
    Dip 90
    Length 2000M
    Width 5M

Controls for ore emplacement

  • Fault

Economic information about the deposit and operations

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

Mining district

District name Julia

Production statistics

  • Year 1978
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^5.41% Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 5wt-pct
  • Year 1982
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^>3% Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Copper Copper 3wt-pct

Workings at the site

  • Type of workings Surface/Underground
    Area 2.4HA
    Overall depth 80M
    Overall length 274.32M
    Overall width 80M

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    IIG, 1973, INEDITO #696 & 1812.

  • Deposit

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

  • 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.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit VEIN INCLUDES COLORADA NUEVO AND VEIJO, PLACERES, DESCUBRIDORA, AND REVENTON

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1990 Williams, William C. University of Arizona

Beyond USGS

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