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Rosario

Past Producer in Chile with commodities Copper, Molybdenum, Silver, Gold
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Production statistics
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10058328
MRDS ID TC04231
Record type Site
Current site name Rosario
Alternate or previous names Vein Systems: Rosario, Poderosa, La Grande, Monctezuma

Geographic coordinates

Geographic coordinates: -68.69784, -20.9609 (WGS84)
Elevation 4620
Relative position 180 KM SE OF IQUIQUE.

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Commodities

Commodity Importance
Copper Primary
Molybdenum Primary
Silver Primary
Gold Secondary

Materials information

Materials Type of material
Bornite Ore
Brochantite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Copper Ore
Covellite Ore
Cuprite Ore
Digenite Ore
Enargite Ore
Malachite Ore
Molybdenite Ore
Pyrite Ore
Stannite Ore
Tennantite Ore
Hematite Gangue
Limonite Gangue
Rutile Gangue
Sericite Gangue

Alteration

  • (Local) Phyllic, Propylitic

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Rosario Porphyry;Collahuasi Porphyry;Ines Porphyry;
    Rock description Rosario Porphyry;Collahuasi Porphyry;Ines Porphyry;
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -68.69784, -20.9609
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Economic information

Geologic structures

Type of structure Regional
Structure description Upthrown Block Of Permo-Triassic Rocks Faulted Against Jurassic Marine Sediments On The West By The West Fissure Fault (Nw Trending) And On The East By The Loa Fault In Contact With Tertiary Volcanics. Hydrothermal Systems In District Aligned East West.
Type of structure Local
Structure description Nw And Ne Trending Structures Conjugate To Major Regional Nw Faults. Jack And Rosario Faults Are Major Features Of A Imbricate Parallel Series Of Normal And Reverse Faults.

Ore body information

  • Name ROSARIO I VEIN
    Strike N60W}N35W}}NE
    Dip 50 SW}}}
    Thickness 15M
    Length 700M
    Width 300M
    Depth to bottom 600M
  • Name PODEROSA VEIN
    Dip 50 SW}}}
    Thickness 3M
    Length 800M
  • Name MONCTEZUMA
    Dip 50 SW}}}
    Thickness 5000M
    Length 7000M
  • Name ROSARIO PORPHYRY
    Dip 50 SW}}}

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discoverer Incas
Year of first production 1896

Mining district

District name Collahuasi, Quebrada Blanca

Ownership information

  • Type Owner
    Owner English And French Mining Companies
    First year 1890
    Last year 1930
  • Type Owner
    Owner Superior Oil Co.
    First year 1976
    Last year 1985
  • Type Joint Venture Owner
    Owner Collahuasi Joint Venture
    First year 1985
  • Type Joint Venture Partner
    Owner Falcon Bridge-Chevron-Shell Companhia Minera Dona Ines De Collahuasi
    First year 1985

Production statistics

  • Year 1930
    Period 1900-1930
    Material ORE (1)
    Accuracy Estimate
    Description Cp_Grade: ^30% Cu, 200 G/Mt Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 30wt-pct
    Ore Silver Silver 200g/mt

Comments on the production information

  • ORE (1) LA GRANDE AND PODEROSA VEINS.

Comments on the workings information

  • 2 SHAFTS

Comments on development

  • UNDERGROUND MINES (1896) ON LA GRANDE AND PODEROSA VEIN SYSTEMSL; MINES CLOSED IN THE 1930'S. 1976-1980'S SURFACE MAPPING AND DRILLING IDENTIFIED COMPONENTS OF THE ROSARIO VEIN/PORPHYRY SYSTEM BY SUPERIOR OIL COMPANY. DURING EXPLORATION AN EXPLORATORY SHAFT AND DEVELOPMENTS AT 4350 M LEVEL PROVIDED DATA ON ROSARIO VEIN SYSTEM AND ENCLOSING DISSEMINATED CU DEPOSIT TO DEPTHS OF 600 M.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ORE BODY 0: PINCH AND SWELL VEINS; TOPOGRAPHICALLY LOWER-PORTIONS COPPER-POOR QUARTZ + PYRITE HIGHLY BRECCIATED ASSEMBLAGE; UPPER PORTION CHALCOPYRITE + BORNITE RICH CU AG (AS-SN) VEINS. ORE BODY 2: AG BEARING, MN CONTENT HIGH NEVER MINED. ORE BODY 3: SIZE OF HYDROTHERMAL SYSTEM PROJECTED TO SURFACE.

Reporter information

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