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  3. Mineral Resource Data System (MRDS)

Carmelita

Occurrence in Sonora, Mexico with commodity Tungsten
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  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 10049177
MRDS ID MX00427
Record type Site
Current site name Carmelita
Related records 10255306

Geographic coordinates

Geographic coordinates: -110.93538, 28.98077 (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

Comments on the location information

  • DISTRICT EXTENDS OVER 26 SQUARE KM, AND THE LAT-LONG IS TO THE MAIN MINE AREA ACCORDING TO INEGI, 1:50,000 TOPOGRAPHIC QUADRANGLE.

Commodities

Commodity Importance
Tungsten Critical Primary

Comments on the commodity information

  • NAMED FOR EXTREMELY LARGE MASSES OF NATIVE AG FOUND IN EARLY YEARS.

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Host and associated rocks

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

Nearby scientific data

(1) -110.93538, 28.98077
ListMap

Economic information

Ore body information

  • General form IRREGULAR

Comments on the geologic information

  • COUNTRY ROCK: CONGLOMERATE INTERBEDDED WITH RED SANDSTONE, AMYGDALOIDAL ANDESITE FLOWS, AND TUFA DEPOSITS. QUARTZ PORPHYRY INTRUSIVE EXPOSED IN MINE AREA. SEDIMENTARY-VOLCANIC STRATIGRAPHY: TERTIARY DACITIC TUFFS (POSTMINERAL); LATE CRETACEOUS-EARLY TERT HORNBLENDE-BIOTITE-MAGNETITE ANDESITE PORPHYRY (MINERALIZED); LJUR-ECRET LA JARETA CONGLOMERATE, GRAYWACKE, AND SANDSTONE; E-MJUR LAS AVISPAS FM RHYOLITIC WELDED TUFF AND INTERCALATED SUBARKOSE (>500 M THICK). FOR DETAILS OF GEOLOGIC STRATIGRAPHY SEE SEGERSTROM (1987).

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Hermosillo

Comments on the production information

  • NOT AN ACTIVE PRODUCER, BUT DEVELOPMENT STATUS IS UNKNOWN. PRODUCTION FIGURE FROM 9 INTERMITTENTLY PRODUCING MINES.

Comments on development

  • ECON.COM: 1736-1940 (PRODUCTION ENDED) INTERMITTENT MINING FROM 9 MINES.

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

General comments

Subject category Comment text
Deposit IMPREGNATIONS OF AGCL AND MINOR CU CARBONATES ALONG SHEAR ZONES IN QUARTZ PORPHYRY CONGLOMERATE. VERY LARGE MASSES OF NATIVE AG HAVE BEEN FOUND. ORE BODIES IN THE FORM OF LENSES, EGG-SHAPED MASSES, SHOOTS AND CHIMNEYS, EXTREMELY IRREGULAR BUT COMMON IN ZONE SEVERAL 100 FT LONG AND UP TO 200 FT WIDE.

Reporter information

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

Beyond USGS

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

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