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  3. Mineral Resource Data System (MRDS)

Las Torres

Producer in Guanajuato, Mexico with commodities Silver, Gold, Lead, Zinc, Copper
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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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10081092
MRDS ID W032794
Record type Site
Current site name Las Torres
Alternate or previous names San Rafeal, Cedros, Purishma, Cerro Minera Las Torres, Guanajuato Unit

Geographic coordinates

Geographic coordinates: -101.25038, 21.00056 (WGS84)
Relative position 250 MILES NW OF MEXICO CITY; 5 KM SE OF GUANAJUATO (CITY)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Guanajuato

Comments on the location information

  • LAS TORRES NAME OF COMPANY AND NAME OF SINGLE MINE

Commodities

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

Materials information

Materials Type of material
Argentite Ore
Chalcopyrite Ore
Sphalerite Ore
Quartz Gangue

Mineral occurrence model information

Model code 150
USGS model code 25c
Deposit model name Epithermal vein, Comstock
Mark3 model number 16

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Granite;Rhyolite-Hanging Wall
    Rock description Granite;Rhyolite-Hanging Wall
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Conglomerate-Footwall
    Rock description Conglomerate-Footwall

Nearby scientific data

(1) -101.25038, 21.00056
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Veta Madra Fault

Ore body information

  • Thickness 400M
    Depth to top 200M
    Depth to bottom 600M

Controls for ore emplacement

  • Fault Dips 45 Sw

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1976

Mining district

District name Guanajuato

Ownership information

  • Type Operator
    Owner Cia De Las Torres
  • Type Owner
    Owner Cia Minera De Las Torres

Comments on the production information

  • BY 1976 EXPECTED PRODUCTION APPROX. 8 MILLION OZ. OF SILVER AND 50,000 OZ. OF GOLD PER YEAR.

Workings at the site

  • Type of workings Underground
    Length 400M
    Overall depth 490M

Comments on the workings information

  • THREE SHAFTS; VEIN MINING

Comments on development

  • DISTRICT DISCOVERED IN 1548; LAS TORRES MINE DISCOVERED BY DRILLING IN OLD WORKINGS OF SAN RAFAEL, CERROS AND PURISMA MINES. BETWEEN 1964 AND 1970 ; MILL.CAP: 295 ; ECON.YEAR: 1978 ; ECON.COM: MINE, CONCENTRATOR, EXPLORATION OFFICE

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit VETA MADRE STRUCTURE IS 25 KM LONG, THREE OLDER MINES IN "UPPER ORE BODIES"; LAS TORRES MINE IN "LOWER ORE BODIES" - RELATIONSHIP UNCERTAIN

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1980 Gassaway, Judith S. U.S. Geological Survey

Beyond USGS

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

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