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  3. Mineral Resource Data System (MRDS)

Carolina

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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  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 10057758
MRDS ID TC03402
Record type Site
Current site name Carolina
Alternate or previous names Carolina De Michilla

Geographic coordinates

Geographic coordinates: -70.23955, -22.71254 (WGS84)
Elevation 970

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
Antlerite Ore
Atacamite Ore
Bornite Ore
Brochantite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Malachite Ore
Gypsum Gangue
Hematite Gangue
Limonite Gangue
Quartz Gangue

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) -70.23955, -22.71254
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Bedding - N60e, 45nw

Ore body information

  • Strike 0-N50W; 0-N20W; N20E; N10W
    Dip 30-50SW; 33-50SW; 35-45SW; 50SW
    Thickness 15M
    Length 300M
    Width 206M
  • Strike 0-N50W; 0-N20W; N20E; N10W
    Dip 30-50SW; 33-50SW; 35-45SW; 50SW
  • Strike 0-N50W; 0-N20W; N20E; N10W
    Dip 30-50SW; 33-50SW; 35-45SW; 50SW
  • Strike 0-N50W; 0-N20W; N20E; N10W
    Dip 30-50SW; 33-50SW; 35-45SW; 50SW

Controls for ore emplacement

  • Bedding, Fault

Comments on the geologic information

  • SULFUR ISOTOPE, DIORITE = +9.1/MIL; DELTA S (ROCK-ORE) = +9.4 SULFUR ISOTOPE, ORE = -2.1/MIL

Economic information about the deposit and operations

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

Mining district

District name Michilla

Ownership information

  • Type Owner
    Owner Compania Minera Carolina De Michilla

Production statistics

  • Year 1928
    Material CU
    Accuracy Accurate
    Description Ap_Grade: ^7-8%
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Copper Copper 8wt-pct

Comments on the reserve resource information

  • PRODUCTION AND RESERVES

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 200M
    Overall length 274.32M

Comments on the workings information

  • MAIN PIT IS 50M X 15M X25M

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

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

  • Deposit

    PALACIOS, C. AND DEFINIS, A., 1981, GEOLOGIA DEL YACIMIENTO SUSANA, DISTRITO MICHILLA, ANTOFAGASTA: FIRST COLOQUIO SOBRE VOLCANISMO Y METALOGENESIS, DEPTO. GEOCIENCIAS, INIVERSIDAD DEL NORTE, P. 82-91.

  • Deposit

    ESPINOZA, S., 1981, ESBOZO METALOGENICO DEL DISTRITO CAROLINA DE MICHILLA, II REGION, CHILE: FIRST COLOQUIO SOBRE VOLCANISMO Y METALOGENESI, DEPTO. GEOCIENCIAS, UNIVERSIDAD DEL NORTE, P. 71-79.

  • Deposit

    SASAKI, A., ULRIKSEN, C., SATO, K., AND ISHIHARA, S., 1984, SULFUR ISOTOPE RECONNAISSANCE OF PORPHYRY COPPER AND MANTO-TYPE DEPOSITS IN CHILE AND THE PHILLIPPINES: BULL. GEOL. SUR. JAPAN, V. 35, P. 615-622.

  • Deposit

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

  • Deposit

    FLORES, H., 1964, ARCHIVO SERNAGEOMIN #2806.

  • Deposit

    MINERIA CHILENA, 1989, PROYECTOS MINEROS EN CHILE, REGIONES I AND II, P. 73.

  • Deposit

    MINING, 1990, ANNL REVIEW, P. 44.

  • Other Database

    CIMRI

  • Production

    MINING, 1990, ANNUAL REVIEW, P. 44.

  • Reserve-Resource

    MINERIA CHILENA, 1989.

General comments

Subject category Comment text
Deposit VEINS IN SOUTH INTERSECT S45E, SE FRACTURES; FOUR VEINS IN CENTRAL AREA HAVE IRREGULAR MINERALIZATION; VEINS IN NORTH ARE UNECONOMIC. MINERALIZATION PRINCIPALLY IN FRACTURES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1989 Williams, William C. University of Arizona
Updater 21-SEP-1994 Page, Norman J. U.S. Geological Survey

Beyond USGS

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

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