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

Laco Norte

Occurrence in Chile with commodity Iron
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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. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10078118
MRDS ID W026278
Record type Site
Current site name Laco Norte
Alternate or previous names El Laco Norte

Geographic coordinates

Geographic coordinates: -67.47447, -23.82418 (WGS84)
Elevation 4775

Site location context

Political divisions (FIPS codes)

Chile(country)

South America(continent)

Land(continent)

Geographic areas

Country
Chile

Comments on the location information

  • ON SE FLANK OF ANDESITIC-RHYODACITIC VOLCANO.

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Magnetite Ore
Actinolite Gangue
Apatite Gangue
Limonite Gangue
Quartz Gangue
Scapolite Gangue

Analytical data

Result TRACE ELEMENTS GIVEN BY NYSTROM AND HENRIQUE (1994).

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Pliocene
    Chronological age 2.1
    Dating method Fission Track
    Type of media Apatite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Pliocene
    Chronological age 2.1
    Dating method Fission Track
    Type of media Apatite

Nearby scientific data

(1) -67.47447, -23.82418
ListMap

Economic information

Ore body information

  • Name EL LACO NORTE
    General form HALF MOON
    Length 1100M
    Width 200M

Comments on the geologic information

  • GENERAL SUCESSION FROM BOTTOM TO TOP IS ANDESITIC LAVA (UP TO 30 M THICK), PYROCLASTIC ORE (UP TO 30 M THICK), MAGNETITE LAVA (UP TO 50 M THICK), PYROCLASTIC UNIT WITH FRAGMENTS OF MASSIVE ORE (ABOUT 20 M THICK), AND ANDESITIC FLOW. ORE BODIES ARE SURROUNDED BY NARROW METASOMATIC AUREOLES (UP TO 1 M THICK IN LAVA BUT WIDER IN TUFFS) WHERE HOST ROCK IS TRANSFORMED TO PYROXENE, SCAPOLITE, QUARTZ AND GARNET.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1958

Mining district

District name El Laco

Reserves and resources

  • Type In-situ
    Estimate year 1965
    Total resources 25000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 60 wt-pct Iron Major 1965

Comments on the reserve resource information

  • POTENTIAL RESOURCES LISTED AS GREATER THAN 20 MILLION METRIC TONS OF EQUIVALENT 60 % FE ORE ( RUIZ FULLER, 1965 ).
  • POTENTIAL RESOURCES LISTED AS GREATER THAN 20 MILLION METRIC TONS OF EQUIVALENT 60 % FE ORE.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SUBHORIZONTAL, GREATER THAN 20 MT OF MINERAL (>60% FE).
Deposit THIS DEPOSIT IS ONE OF A GROUP OF 6 MAJOR DEPOSITS DISTRIBUTED ALONG THE PERIPHORY OF A NORTHWEST - TRENDING ELLIPTICAL AREA ABOUT 7 KILOMETERS LONG AND 3 KILOMETERS WIDE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit RECORD TC03240 WAS COMBINED WITH THIS RECORD.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1973 Klemic, H., Shaffer, Glenn L. U.S. Geological Survey
Updater 01-SEP-1989 Williams, William C. University of Arizona
Updater 01-FEB-1994 Page, Norman J. U.S. Geological Survey
Updater 01-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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