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El Burro

Occurrence in Sonora, Mexico with commodities Tungsten, Molybdenum
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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. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10049181
MRDS ID MX00432
Record type Site
Current site name El Burro
Related records 10255046

Geographic coordinates

Geographic coordinates: -110.08814, 28.64467 (WGS84)

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

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Secondary

Materials information

Materials Type of material
Molybdenite Ore
Scheelite Ore
Beryl Gangue
Calcite Gangue
Muscovite Gangue
Pyrite Gangue
Quartz Gangue
Tourmaline Gangue

Mineral occurrence model information

Model code 45
USGS model code 15
Deposit model name W pegmatite

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -110.08814, 28.64467
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Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Medium
Significant No

Mining district

District name Tecoripa

Reference information

Bibliographic references

  • Deposit

    PEREZ SEGURA, EFREN, 1985, CARTA METALOGENETICA DE SONORA 1:250000 UNA INTERPRETACION DE LA METALOGENIA DE SONORA: UNIV. OF SONORA, DEPT. OF GEOL., HERMOSILLO, MEXICO, 66 P.

  • Deposit

    RADELLI, L., 1985, SCHEELITE DEPOSITS OF CENTRAL SONORA, MEXICO: BOLETIN DEL DEPATAMENTO DE GEOLOGIA UNI-SON, SEGUNDA EPOCA, V. 2, NUM. 1-2, P. 65-73.

General comments

Subject category Comment text
Deposit NUMEROUS SCHEELITE OCCURRENCES OVER 10-20 SQ. KM AREA. SCHEELITE IN DISSEMINATED CRYSTALS, COATING JOINTS, AND IN QUARTZ-CALCITE STRINGERS CUTTING MONZOGRANITE ADJACENT TO SILICIFIED FAULT ZONES. CRYSTALS OF SCHEELITE (+/- MOLYBDENITE) DISSEMINATED IN APLITES AND QUARTZ DIKES CUTTING GREISENIZED PORTIONS OF GRANITE. VEINLETS, PODS, AND STRINGERS OF SCHEELITE OCCUR IN GREISEN ALONG A RIDGE ABOUT 300 M LONG AND 100-150 M WIDE. HIGH-GRADE LENSES OF COARSELY CRYSTALLINE SCHEELITE OCCUR IN PEGMATITIC PHASE OF GRANITE, ASSOCIATED WITH QUARTZ, BERYL, TOURMALINE, AND OXIDIZED PYRITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1987 Leonard, Kenneth R. (Page, Norman J.) U.S. Geological Survey
Updater 01-JUN-1988 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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