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  3. Mineral Resource Data System (MRDS)

Iroco Mine

Producer in Oruro, Bolivia with commodities Gold, 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. Land status
  14. Ownership information
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10005915
MRDS ID BL10105
Record type Site
Current site name Iroco Mine

Geographic coordinates

Geographic coordinates: -67.15448, -17.96376 (WGS84)
Elevation 3750
Relative position 4 KM W OF ORURO

Site location context

Political divisions (FIPS codes)

Oruro(province)

Bolivia(country)

South America(continent)

Land(continent)

Federal lands

Federal(land status)

Geographic areas

Country State
Bolivia Oruro

Comments on the location information

  • NEAR ITOS AND SANTO CRISTO, WEST OF SAN JOSE MINE

Commodities

Commodity Importance
Gold Primary
Copper Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Chalcedony Gangue
Opal Gangue
Pyrite Gangue
Quartz Gangue

Analytical data

Result ORE ANALYSES BY GUERRA ET.AL. (1965): 1.53 TO 31.76 G/T AU

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Paleocene

Nearby scientific data

(1) -67.15448, -17.96376
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Regional Normal Fault
Type of structure Local
Structure description Anticline N20e, Veins Are On Axis

Ore body information

  • Strike N-S / N45W
    Dip 50E THEN W / 60NE
    Depth to top 0M

Controls for ore emplacement

  • Fracture Pattern Due To Folding And Intrusion Of San Jose Stock

Comments on the geologic information

  • GOLD PARTICLES, 30 MICRONS IN SIZE, ARE FOUND IN QUARTZ

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Land status

Ownership category Federal

Ownership information

  • Type Owner-Operator
    Owner Rivas, Alberto Yanez

Workings at the site

  • Type of workings Underground
    Length 448M

Comments on the workings information

  • 4 ADITS 2 PROSPECT PITS

Comments on development

  • LEASED AND PRODUCED 1948 TO 1956. PURCHASED BY YANEZ R. IN 1958. NOW OWNED BY A COOP WHICH HAS A JV AGREEMENT WITH FREEPORT EXPLORATION CO WHO CONDUCTED A DRILLING PROGRAM 1988-1989.

Reference information

Bibliographic references

  • Deposit

    GUERRA, M., URIBE, H., AND OTAZO, N., 1965, INFORME SOBRE ORIENTACION TECNICA MINA AURIFERA IROCO: SERVICIO GEOLOGICO DE BOLIVIA INFORME GB-M-459, 9P., MAP 1:500

  • Deposit

    GEOLOGICAL INVESTIGATIONS BY GUERRA ET.AL. (1965

  • Other Database

    CIMRI

  • Reserve-Resource

    J. MACNAMEE (PERS. COMM.)

General comments

Subject category Comment text
Deposit TWO VEIN SETS. VEINS ARE A FEW CM TO A M WIDE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1990 Long, Keith R. U.S. Geological Survey

Beyond USGS

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

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