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Pacopata Mine

Past Producer in La Paz, Bolivia with commodity Tungsten
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10080357
MRDS ID W031480
Record type Site
Current site name Pacopata Mine

Geographic coordinates

Geographic coordinates: -67.51617, -16.79769 (WGS84)
Elevation 3750
Location accuracy 5000(meters)
Relative position 6 KM SW OF THE TOWN OF CHOQUETANGA CHICO.

Site location context

Political divisions (FIPS codes)

La Paz(province)

Bolivia(country)

South America(continent)

Land(continent)

Federal lands

Federal(land status)

Geographic areas

Country State
Bolivia La Paz

Comments on the location information

  • LOCATED NW OF THE CALACHACA RIVER.
  • LOCATED ABOUT 75 KM DUE WEST OF COCHABAMBA, 30 KM TO THE SE OF THE AMUTARA MINING DISTRICT, AND IN A LINE OF TUNGSTEN DEPOSITS WHICH EXTENDS TO THE SE APPROXIMATING THE STRIKE OF THE AXIS OF THE QUIMSA CRUZ BATHOLITH TO THE NORTH. THE DISTRICT IS ON THE WEST SIDE OF THE AYOPAYA RIVER JUST SOUTH OF ITS JUNCTION WITH THE COLQUIRI RIVER; PREVIOUS QUAD DESIGNATION = COCHABAMBA (SE 19-8) 1:250000

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Muscovite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 46
USGS model code 15a
Deposit model name W veins

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Quimsa Cruz Batholith
    Rock description Quimsa Cruz Batholith
    Stratigraphic age (youngest) Late Devonian
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -67.51617, -16.79769
ListMap

Economic information

Ore body information

  • General form TABULAR
    Strike N 40 TO 70 W
    Dip STEEP

Controls for ore emplacement

  • Fractures And Shear Zones

Comments on the geologic information

  • IGNEOUS ROCK NOT EXPOSED BUT UNDERLYING PLUTON SUSPECTED

Economic information about the deposit and operations

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

Mining district

District name Choquetanga Chico Mining District

Land status

Ownership category Federal

Comments on the workings information

  • CHICOTI GRANDE MINE IS DEVELOPED WITHIN TUNGSTEN ZONE. BUENA ESPERANZA AND LAPIANI MINES ARE WITHIN PERIPHERAL TIN ZONE.

Comments on development

  • NO SIGNIFICANT DEVELOPMENT UNTIL THAT BY ANSCHUTZ ; TOTAL$: 25,OOO ; MILL.CAP: 1000 T/D ; ECON.COM: CHURQUINI IS A SUBSIDIARY OF ANSCHUTZ. AS OF 1986 PRODUCTION LIMITED TO 150 T/D PILOT PLANT.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit MAIN TUNGSTEN ZONE IS A SHEETED QUARTZ-PYRRHOTITE-FERBERITE VEIN COMPLEX. MAJOR ENE VEINS ARE THE ESPADA, VICTORIA, CABLES AND BLANCO. THE MAJOR WSW VEIN IS THE MIRAFLORES. INDIVIDUAL VEINS ARE UP TO 1 M THICK. TIN IS FOUND IN PERIPHERAL QUARTZ-PYRITE-CASSITERITE VEINS. SOME TUNGSTEN ORE FOUND CONCENTRATED IN "LLAMPERAS" OR LANDSLIDE DEPOSITS.
Deposit SIGNIFICANT ECONOMIC CONCENTRATIONS OF TUNGSTEN ARE FOUND IN LANDSLIDE MATERIAL KNOWN AS "LLAMPERAS." ON BOTH SIDES OF THE AYOPAYA RIVER. E.G. THE TAMINANI LLAMPERAS, A LARGE PAST PRODUCER. A PRONOUNCED CU-ZN-SN-W-AS-MN-RB-SR GEOCHEMICAL DISPERSION ANOMALY PRESENT. ; INFO.SRC : 1 PUB LIT
Deposit VEINS ARE ONLY IN THE MINERALIZED COUNTRY ROCK AND TREND PARALLEL TO THE CONTACT BORDER OF THE BATHOLITH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-81 Ericksen, George E. (Rowe, William D.) U.S. Geological Survey

Beyond USGS

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

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