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El Letrero

Past Producer in Chihuahua, Mexico with commodities Silver, Gold, Copper, Lead, Zinc
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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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10049501
MRDS ID MX02226
Record type Site
Current site name El Letrero
Alternate or previous names Los Letreros
Related records 10182450

Geographic coordinates

Geographic coordinates: -108.06308, 28.38775 (WGS84)
Location accuracy 10000(meters)
Relative position 10 KM SE OF PROMONTORIO, ON W SLOPE OF CERRO DE LA MANZANILLA. 15 KM SE OF MAGISTRAL (PROMOTORIO SYNONYM)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Chihuahua

Comments on the location information

  • EASILY REACHED BY ROAD DUE WEST 25 KM FROM TOMOSECHIC. 40 KM NE OF OCAMPO.

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Secondary
Lead Secondary
Zinc Critical Secondary

Comments on the commodity information

  • COMMODITIES CONCENTRATIONS POORLY DEFINED

Materials information

Materials Type of material
Freibergite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -108.06308, 28.38775
ListMap

Economic information

Ore body information

  • Strike N 40 E
    Dip NW

Controls for ore emplacement

  • Brecciated Fault And Vein

Comments on the geologic information

  • DEPOSIT IS SIMILAR TO PROMONTORIO VEIN OCCURRENCES 10 KM N.

Economic information about the deposit and operations

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

Mining district

District name Tutuaca-Ocampo/Temosachic

Comments on development

  • INACTIVE SINCE PRIOR TO 1950

Reference information

Bibliographic references

  • Deposit

    GONZALEZ R., J., 1956, MEMORIA GEOLOGICO-MINERA DEL ESTADO DE CHIHUAHUA: XX CONGRESO GEOLOGICO INTERNACIONAL (DURANGO, MX), P. 59.

  • Deposit

    SOCIEDAD GEOLOGICA MEXICANA A.C., 1985, PLANO GEOLOGICO MINERO DE CHIHUAHUA, MEXICO: CONSEJO DE RECURSOS MINERALES AND FEDERAL GOVERNMENT OF MEXICO, MEXICO D.F., 1 SHEET, SCALE 1:500,000.

  • Deposit

    SECRETARIO DE PROGRAMACION Y PREPUESTO, 1984, TECONPA: CARTA GEOLOGICA; INSTITUTO NACIONAL DE ESTADISTIC GEOGRAFIA E INFORMACION, MEXICO D.F., SCALE 1:250,000.

General comments

Subject category Comment text
Deposit SILICIFIED BRECCIA ALONG FAULT ZONE 3 TO 4 METERS WIDE, TRENDING N 40 E WITH NW DIP. VEINLETS OF ARGENTIFEROUS TETRAHEDRITE (FREIBERGITE) AND PYRITE IN QUARTZ.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-88 Leonard, Kenneth R. (Page, Norman J.) U.S. Geological Survey
Updater 01-JAN-91 Staude, John-Mark G. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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