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

Dos Hermanas

Past Producer in Chile with commodities Copper, Molybdenum, Uranium
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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. Economic information about the deposit and operations
  12. Mining district
  13. Production statistics
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10057465
MRDS ID TC03016
Record type Site
Current site name Dos Hermanas
Alternate or previous names Dos Hermanos

Geographic coordinates

Geographic coordinates: -69.72122, -18.28765 (WGS84)
Elevation 2100

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary
Molybdenum Secondary
Uranium Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Molybdenite Ore
Pyrite Gangue
Turquoise Gangue

Alteration

  • (Local) Argillic, Phyllic, Propylitic, Silicic

Host and associated rocks

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

Nearby scientific data

(1) -69.72122, -18.28765
ListMap

Economic information

Ore body information

  • Length 10M
    Width 4M

Economic information about the deposit and operations

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

Mining district

District name Precordillera

Production statistics

  • Year 1918
    Period Through 1918
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^10% Cu
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 10wt-pct

Comments on development

  • ECON.COM: NOT OF ECONOMIC INTEREST

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

    PACCI, D. Y CACERES, R., 1980 INVENTARIO DE YACIMIENTOS METALICOS Y NO-METALICOS, PRIMERA REGION, TARAPACA: IIG, SANTIAGO.

  • Deposit

    SALAS, R., KAST, R., MONTECINOS, F., Y SALAS, I., 1966, GEOLOGIA Y RECURSOS MINERALES DEL DEPARTAMENTO DEL ARICA: BOL. 21, IIG, SANTIAGO.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit FRUTOS & PINCHEIRA (1986) REPORT MO-BEARING VEINLETS AND LENSES TRENDING 90, 45N-90 AT SAME LOCATION (DOS HERMANOS). SALAS Y OTROS (1966) REPORT THREE MAIN FRACTURE DIRECTIONS: N20W, N40E, AND N85E. DIMENSIONS ARE FOR EACH MINERALIZED BODY <20,000T CU

Reporter information

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

Beyond USGS

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

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