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El Fenomeno Del Topo

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. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10049031
MRDS ID MX00241
Record type Site
Current site name El Fenomeno Del Topo
Related records 10184099

Geographic coordinates

Geographic coordinates: -116.00081, 32.21397 (WGS84)
Relative position BETWEEN EL AUDAZ AND EL DIECISEIS DE SEPTIEMBRE DEPOSITS.

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
Diopside Gangue
Garnet 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 > Metasedimentary Rock > Marble

Nearby scientific data

(1) -116.00081, 32.21397
ListMap

Economic information

Comments on the geologic information

  • TUNGSTEN MINERALIZATION IN PENDANT 170 M LONG AND 20 M WIDE IN DARK BIOTITE DIORITE. SOUTHERN PART OF PENDANT IS DOMINANTLY MARBLE AND THE NORTHERN PART MAINLY TACTITE AND HORNFELS. BEDS STRIKE NE AND DIP 70 NW.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Los Gavilanes

Workings at the site

  • Type of workings Underground
    Overall depth 3M

Comments on the workings information

  • 3-M DEEP SHAFT IN MARBLE AT N END OF PENDANT.

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

General comments

Subject category Comment text
Deposit SCHEELITE-BEARING ZONE ABOUT 0.5 M WIDE IN GARNET-DIOPSIDE TACTITE. ORE IS POCKETY AND GENERALLY LOW GRADE. ZONE APPEARS TO BE NO MORE THAN 10 M LONG.
Deposit SORTED ORE AT PROPERTY IN 1943, BETWEEN 5 AND 8 TONS, DID NOT CONTAIN ENOUGH SCHEELITE TO REPAY COST OF MINING. ; 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.

Maps centered on this site