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  3. Mineral Resource Data System (MRDS)

La Paz

Occurrence in Sonora, Mexico with commodities Tungsten, Gold, Barium-Barite
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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. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10049061
MRDS ID MX00276
Record type Site
Current site name La Paz
Related records 10133027

Geographic coordinates

Geographic coordinates: -109.89369, 28.77106 (WGS84)
Relative position ABOUT 8 KM E OF THE EL COBRE MINE AND ABOUT 20 KM N OF TECORIPA.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Sonora

Comments on the location information

  • ESTIMATE TO WITHIN 1 KM

Commodities

Commodity Importance
Tungsten Critical Primary
Gold Tertiary
Barium-Barite Critical Tertiary

Materials information

Materials Type of material
Barite Ore
Gold Ore
Scheelite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -109.89369, 28.77106
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No
Discovery year 1943

Mining district

District name Tecoripa

Ownership information

  • Type Owner
    Owner Taylor, Jr., William C.
    First year 1943

Reserves and resources

  • Type In-situ
    Estimate year 1945
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 2 wt-pct Tungsten Major 1945

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 20M

Comments on the workings information

  • FIFTEEN PITS AND THREE SHAFTS, DEEPEST WAS 20 M. ALL WORKINGS IN ORE.

Comments on development

  • THE THREE CLAIMS OF THE LA PAZ GROUP WERE LOCATED IN 1943 ON THE WESTERN EXTENSION OF THE ABANDONED REALITO COPPER PROPERTY.

Reference information

Bibliographic references

  • Deposit

    WIESE, JOHN H., AND CARDENAS, SALVADOR, 1945, TUNGSTEN DEPOSITS OF THE SOUTHERN PART OF SONORA, MEXICO: USGS BULL 946, P. 103-130

General comments

Subject category Comment text
Deposit SERIES OF NE STRIKING, VERTICALLY DIPPING REPLACEMENT VEINS IN GRANITE. VEINS CONSIST OF QUARTZ, CALCITE, PYRITE, AND SCHEELITE. ASSAYS SHOWED PRESENCE OF MINOR AMOUNTS OF GOLD IN ONE SHOOT, BARITE FOUND IN ANOTHER, NOT ASSOCIATED WITH SCHEELITE. THE REALITO MINE, ON THE SAME VEINS 300 FT EAST OF LA PAZ GROUP, PRODUCED CHALCOPYRITE AND GOLD IN A GANGUE OF MAGNETITE, PYRITE, SPECULARITE AND VERY LITTLE QUARTZ. NO FELDSPAR, MICA, OR CHLORITE WERE NOTED IN VEINS ON EITHER PROPERTY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1987 Staude, John-Mark G. (Page, Norman J.) U.S. Geological Survey
Updater 01-OCT-1987 Leonard, Kenneth 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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