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

Juliana Mine

Past Producer in Oruro, Bolivia with commodities Tungsten, Dolomite
Map
XML
JSON
KML
C
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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10080372
MRDS ID W031496
Record type Site
Current site name Juliana Mine
Alternate or previous names Fenix Mine

Geographic coordinates

Geographic coordinates: -66.94948, -17.71433 (WGS84)
Elevation 4500
Location accuracy 5000(meters)
Relative position ABOUT 30 KM N 40 E OF CITY 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

  • MINE IS ON THE CONDE AUQUE RIDGE ABOUT 1 KM WEST OF THE ORCOHUMA RIVER AT ITS SOURCE.

Commodities

Commodity Importance
Tungsten Critical Primary
Dolomite Secondary

Materials information

Materials Type of material
Dolomite Ore
Scheelite Ore
Ankerite Gangue
Calcite Gangue
Quartz Gangue

Analytical data

Result SCHEELITE FROM THE THREE ORE SHOOTS SHOW 2 TO 11 % WO3.

Mineral occurrence model information

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

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Stratigraphic age (youngest) Late Devonian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -66.94948, -17.71433
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description The Conde Auque Ridge, A Vast Nw Trending Anticline

Ore body information

  • General form TABULAR
    Strike N 85 E
    Dip 50 S
    Depth to bottom 180M

Controls for ore emplacement

  • Mineralization Is Limited To A Fault Crossing The Sandstone Cap Of Conde Auque Summit

Comments on the geologic information

  • THE AUTHORS REPORT THREE PHASES IN PARAGENESIS: 1) IRON-RICH CALCITE, 2) SCHEELITE WITH PYRITE; 3) ANKERITE, DOLOMITE, AND SILICA.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Medium
Significant No
Discovery year 1915

Mining district

District name Conde Auque Mining District

Land status

Ownership category Federal

Reference information

Bibliographic references

  • Deposit

    AHLFELD, F., AND SCHNEIDER-SCHERBINA, A., 1964, LOS YACIMIENTOS MINERALES Y DE HIDROCARBUROS DE BOLIVIA: BOLIVIA DEPARTAMENTO NACLONAL DE GEOLOGIA BOL. 5, P. 98-100

General comments

Subject category Comment text
Deposit THE VEIN, WHICH VARIES FROM 0.75 TO 9 METERS IN THICKNESS, IS A TECTONIC BRECCIA WITH FRAGMENTS OF SANDSTONE, CALCITE AND SCHEELITE CEMENTED WITH ANKERITE. IT OCCURS IN ONE OF TWO SANDSTONE CAPS IN THE AREA.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-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.

Maps centered on this site