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  3. Mineral Resource Data System (MRDS)

Pasadena

Occurrence in Baja California, Mexico 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. 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 10049207
MRDS ID MX00465
Record type Site
Current site name Pasadena
Related records 10255357

Geographic coordinates

Geographic coordinates: -116.08638, 32.14203 (WGS84)
Relative position 3 KM S OF EL PINALITO.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Diego(quadrangle 1:250,000 scale)

Geographic areas

Country State
Mexico Baja California

Comments on the location information

  • ESTIMATE TO WITHIN 1.0 KM.

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Diopside Gangue
Garnet Gangue

Analytical data

Result ESTIMATED AVERAGE GRADE: 0.3-0.5% WO3.

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -116.08638, 32.14203
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Sierra De Juarez

Reserves and resources

  • Type In-situ
    Estimate year 1943
    Total resources 2500000mt ore
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 0.3 wt-pct Tungsten Major 1943

Comments on the reserve resource information

  • AVE. MINING WIDTH: 1.2 M. SEE GENERAL COMMENTS.

Comments on the workings information

  • 8-METER ADIT.

Reference information

Bibliographic references

  • Deposit

    FRIES, CARL, JR., AND SCHMITTER, EDUARDO, 1945, SCHEELITE DEPOSITS IN THE NORTHERN PART OF THE SIERRA DE JUAREZ, NORTHERN TERRITORY, LOWER CALIFORNIA, MEXICO: U.S. GEOLOGICAL SURVEY BULLETIN 946-C, P. 85, 101, PLATE 25

General comments

Subject category Comment text
Deposit SCHEELITE-BEARING ZONE UP TO 1.5 M WIDE IN GARNET-DIOPSIDE TACTITE, ABOUT 30 M LONG AND 1-4 M WIDE, IN HORNFELS AND SCHIST; 20 M EAST OF LARGE QUARTZ DIORITE INTRUSIVE.
Deposit TUNGSTEN CONTENT OVER MINEABLE WIDTH NOT WELL ESTABLISHED (AS OF 1943). ASSUMING LENGTH OF 30 M, MAX. DEPTH OF 20 M, AND AVERAGE WIDTH OF 1 M, THE ORE BODY WOULD CONTAIN 2,000 TONS OF ORE. THIS ESTIMATE DIFFERS SLIGHTLY FROM DATA PRESENTED IN TABLE ON P. 85 OF USGS BULL 946-C. ; INFO.SRC : 1 PUB

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1987 Leonard, Kenneth R. (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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