Aurora

Past Producer in Sonora, Mexico with commodities Copper, Molybdenum, Gold
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10048850
MRDS ID MX00020
Record type Site
Current site name Aurora
Related records 10158075

Geographic coordinates

Geographic coordinates: -109.62146, 28.52662 (WGS84)
Relative position 10 KM SOUTH OF SAN ANTONIO DE LA HUERTA; 150 KM EAST OF HERMOSILLO.

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
Copper Primary
Molybdenum Primary
Gold Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Molybdenite Ore
Pyrite Ore
Tetrahedrite Ore

Alteration

  • (Local) Hydrothermal Alteration (Quartz, Sericite, Tourmaline), And Propylitic Alteration

Mineral occurrence model information

Model code 79
USGS model code 21a
Deposit model name Porphyry Cu-Mo
Mark3 model number 2

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Tertiary
    Stratigraphic age (oldest) Late Cretaceous
    Chronological age 54.5
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Stratigraphic age (youngest) Tertiary
    Stratigraphic age (oldest) Late Cretaceous
    Chronological age 54.5
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Barranca Formation
    Rock description Barranca Formation

Nearby scientific data

(1) -109.62146, 28.52662

Economic information

Geologic structures

Type of structure Local
Structure description Local Structure Trends N 80 E

Ore body information

  • General form HYDROTHERMAL BRECCIA

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1889
Year of first production 1889

Mining district

District name Huerta

Reference information

Bibliographic references

  • Deposit

    PANCZNER, WILLIAM D., 1987, MINERALS OF MEXICO: VAN NOSTRAND REINHOLD COMPANY, NEW YORK, 459 P.

  • 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.

General comments

Subject category Comment text
Deposit CONCENTRATION OF COPPER ALONG E-W TRENDING BRECCIA ZONE. SULFIDES SUCH AS TETRAHEDRITE ARE PRESENT IN VEIN SYSTEMS. GOLD WAS DISCOVERED BOTH AS PLACER AND VEIN DEPOSITS IN 1889. 5 MONTHS AFTER THE FIRST DISCOVERY THERE WERE OVER 5 THOUSAND PEOPLE LIVING AND WORKING THE AREA NEAR SANTA CLARA.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1987 Staude, John-Mark G. (Page, Norman J.) U.S. Geological Survey
Updater 01-NOV-1987 Leonard, Kenneth R. U.S. Geological Survey

Beyond USGS

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