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Los Aliados De America

Past Producer 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. Ownership information
  13. Production statistics
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10104176
MRDS ID MX00234
Record type Site
Current site name Los Aliados De America
Related records 10302998

Geographic coordinates

Geographic coordinates: -116.00499, 32.21091 (WGS84)
Elevation 1500

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 KM

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Axinite Gangue
Calcite Gangue
Epidote Gangue
Garnet Gangue
Idocrase Gangue
Pyroxene Gangue
Quartz Gangue

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 > Hornfels
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble

Nearby scientific data

(1) -116.00499, 32.21091
ListMap

Economic information

Comments on the geologic information

  • W ORE IN A SMALL PENDANT OF HORNFELS, TACTITE, AND MARBLE IN BIOTITE DIORITE 80 M NW OF CONTACT WITH MAIN BODY OF QUARTZ DIORITE. PENDANT 20 M X 10 M CUT OFF BY BIOTITE DIORITE AT DEPTH OF 6 M. REMNANT OF MARBLE 15 M X 3 M ALONG S SIDE OF PENDANT, SEPARATED FROM BIO. DIORITE BY NARROW ZONE OF TACTITE. REST OF PENDANT CONSISTS OF 3 TACTITE ZONES SEPARATED BY HORNFELS. SMALL SCHEELITE-BEARING INCLUSION OF HORNFELS AND TACTITE IN QUARTZ DIORITE ACROSS THE ARROYO FROM THE MINE.

Economic information about the deposit and operations

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

Mining district

District name Los Gavilanes District

Ownership information

  • Type Operator
    Owner Cia. Minera El Fenomeno
    First year 1943

Production statistics

  • Year 1943
    Material ORE W
    Accuracy Estimate
    Description Ap_Grade: ^Ave. 1.48% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    WO3 Ore Tungsten Tungsten 1wt-pct

Comments on the reserve resource information

  • PROBABLY NO MORE THAN 50 TONS OF ORE CONTAINING UP TO 1.0% WO3 REMAINS IN THE MINE. OVERALL TENOR OF ORE + WASTE ROCK WOULD BE MUCH LESS THAN 1.0%. DEPOSIT MAY BE REGARDED AS MINED OUT (1943).

Comments on the workings information

  • OPEN-PIT CONNECTED BY SHORT INCLINE TO 17 M ADIT. SEVERAL SHALLOW TRENCHES.

Reference information

Bibliographic references

  • Deposit

    FRIES, CARL AND SCHMITTER, EDUARDO, 1945, SCHEELITE DEPOSITS IN THE NORTHERN PART OF SIERRA DE JUAREZ NORTHERN TERRITORY LOWER CALIFORNIA, MEXICO: USGS BULL 946-C, P. 73-101

  • Production

    FRIES AND SCHMITTER, 1945, P. 83.

General comments

Subject category Comment text
Deposit SCHEELITE IN TACTITE BEDS AND, RARELY, IN HORNFELS.
Deposit NO DEPOSITS WITH MORE THAN 100 TONS OF ORE GRADING AT LEAST 0.8% TUNGSTATE REMAIN UNMINED IN THE SIERRA DE JUAREZ REGION (AS OF 1943). ; INFO.SRC : 1 PUB

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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