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La Millonaria

Past Producer in Chihuahua, Mexico with commodities Gold, Silver
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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. Economic information about the deposit and operations
  10. Mining district
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10049433
MRDS ID MX02087
Record type Site
Current site name La Millonaria

Geographic coordinates

Geographic coordinates: -108.44226, 27.25445 (WGS84)
Location accuracy 5000(meters)
Relative position 25 KM SW OF GUAZAPARES, 12 KM SE OF CHINIPAS.

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

  • ESTIMATED TO NEAREST 15 SECONDS. 18 KM WSW OF TEMONS

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -108.44226, 27.25445
ListMap

Economic information

Comments on the geologic information

  • GEOLOGIC ENVIRONMENT COMPRISED OF ESSENTIALLY UNDEFORMED CONTINENTAL VOLCANIC ROCKS. 12 KMLONG , 3 KM WIDE ELONGATE INTRUSIVE SURROUNDED BY CRETACIOUS VOLC. VOLC. OVERLAIN BY TERT ANDESITE AND LATER FELSIC VOLC.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1734

Mining district

District name Rio Chinipas District/Guazapares

Comments on the production information

  • MINIMUM ESTIMATE.

Workings at the site

  • Type of workings Underground
    Length 120M
    Overall depth 75M
    Overall length 109.73M
    Overall width 30M

Comments on the workings information

  • OPEN SHAFT WITH SEVERAL SUB-LEVELS.

Reference information

Bibliographic references

  • Deposit

    GUILD, P.W., 1981, PRELIMINARY METALLOGENIC MAP OF NORTH AMERICA: U.S. GEOLOGICAL SURVEY CIRCULAR 858-A AND -B.

  • Deposit

    GONZALEZ R., J., 1956, MEMORIA GEOLOGICO-MINERO DEL ESTADO DE CHIHUAHUA: XX CONGRESO GEOLOGICO INTERNACIONAL, DURANGO, MEXICO, 1956, P. 108-109.

  • Deposit

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

  • Deposit

    SPP, 1984, CIUDAD OBREGON

  • Deposit

    SSP, 1979, CARTA GEOLOGICA MILPILLAS

  • Production

    GONZALEZ, 1956.

General comments

Subject category Comment text
Deposit BRECCIA ZONE BETWEEN TWO FAULTS IN ANDESITE. WEDGE-SHAPED ORE BODY CONTAINING AURIFEROUS QUARTZ.
Deposit AT HEIGHT OF ACTIVITY DURING THE COLONIAL PERIOD, THERE WERE OVER 100 AU MINES ACTIVE WITHIN A RADIUS OF 8 KM. ; INFO.SRC : 1 PUB

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-88 Leonard, Kenneth R. (Page, Norman J.) U.S. Geological Survey
Updater 01-APR-88 Leonard, Kenneth R. U.S. Geological Survey
Updater 01-AUG-91 Kibbe, R.D. (Staude, J-M.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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