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Los Cuates

Past Producer in Sonora, Mexico with commodities Tungsten, Molybdenum
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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. Economic information about the deposit and operations
  11. Mining district
  12. Production statistics
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10049038
MRDS ID MX00248
Record type Site
Current site name Los Cuates
Alternate or previous names Cuate
Related records 10279488

Geographic coordinates

Geographic coordinates: -110.93427, 29.07715 (WGS84)
Relative position ABOUT 4 KM SW OF HERMOSILLO, MX AND 3 KM S OF RIO DE SONORA, AT THE N EDGE OF CERRO LUJAN.

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
Tungsten Critical Primary
Molybdenum Tertiary

Materials information

Materials Type of material
Powellite Ore
Scheelite Ore
Garnet Gangue

Analytical data

Result 2.0 - 3.5 % WO3

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
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -110.93427, 29.07715
ListMap

Economic information

Comments on the geologic information

  • NORTH SHAFT INTERSECTED E DIPPING FAULT AND ENCOUNTERED GRANITE AT DEPTH OF 5 M. THE FAULT AND INTRUSIVE CONTACT INTERSECT AT THE SURFACE 15 M FARTHER NORTH. ORE BODIES LIE ALONG THE E SIDE OF A WEDGE-SHAPED FAULT BLOCK OF LIMESTONE AND ARE CUT OFF AT DEPTH BY THE S PITCHING INTERSECTION OF THE FAULT AND THE CONTACT.

Economic information about the deposit and operations

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

Mining district

District name Hermosillo/Cerro Tecoripa

Production statistics

  • Year 1943
    Material ORE W
    Accuracy Estimate
    Description Ap_Grade: ^3.5% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Wo3 Ore Tungsten Tungsten 4wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1945
    Commodity Subtype Grade units Group Importance Year
    Tungsten Wo3 2 wt-pct Tungsten Major 1945

Workings at the site

  • Type of workings Unknown
    Overall depth 16M

Comments on the workings information

  • 16 M SHAFT ON MAIN ORE BODY. ANOTHER SHAFT 60 M NORTH OF MAIN SHAFT.

Comments on development

  • AT THE END OF 1943 ONLY THE MARIA LUISA, NOCHE, CUATE, AND TUNGSTENO MINES WERE PRODUCING. THREE OTHER PROPERTIES IN THE DISTRICT WERE DOING DEVELOPMENT WORK AND THE REST WERE IDLE.

Reference information

Bibliographic references

  • Deposit

    WIESE, JOHN H., AND CARDENAS, SALVADOR, 1945, TUNGSTEN DEPOSITS OF THE SOUTHERN PART OF SONORA, MEXICO: USGS BULL 946, P. 103-130.

  • Deposit

    RADELLI, L., 1985, SCHEELITE DEPOSITS OF CENTRAL SONORA, MEXICO: BOLETIN DEL DEPATAMENTO DE GEOLOGIA UNI-SON, SEGUNDA EPOCA, V. 2, NUM. 1-2, P. 65-73.

  • Production

    WIESE AND CARDENAS, 1945.

General comments

Subject category Comment text
Deposit THE ROCKS OF THE HERMOSILLO DISTRICT COMPRISE A SEQUENCE OF METAMORPHOSED LIMESTONES AND SHALES OF PERMIAN (?) AGE WHICH HAVE BEEN INTRUDED BY GRANITE. THE COUNTRY ROCK MAY BE DIVIDED INTO THREE UNITS. THE LOWER UNIT WAS ORIGINALLY A SHALE AND HAS BEEN ALTERED TO THIN-BEDDED HORNFELS CONTAINING A FEW SMALL LENSES OF TACTITE AT ITS CONTACT WITH GRANITE. THE MIDDLE UNIT CONSISTS OF THICK BEDS OF CS GRAINED RECRYSTALLIZED LIMESTONE CONTAINING V. LITTLE HORNFELS. IT IS IN CONTACT WITH THE GRANITE FOR A DISTANCE OF 6 KM AND IS THE HOST ROCK FOR MOST OF THE ORE BODIES. THE APPARENT MINIMUM THICKNESS FOR THIS UNIT IS 600 M. THE UPPER UNIT CONSISTS OF HORNFELS WITH A FEW THIN INTERBEDDED LIMESTONE LAYERS THAT LOCALLY HAVE BEEN ALTERED TO TACTITE. MOST OF THE GRANITE IS MED. GRAINED AND CONTAINS SMALL AMOUNTS OF BIOTITE AND HORNBLENDE. IN SEVERAL PLACES NEAR THE EDGE OF THE INTRUSIVE THERE ARE IRREGULAR STRINGERS OF PEGMATITE, A FEW OF WHICH ARE SCHEELITE-BEARING. DIKES OF DIABASE CUT ALL
Deposit OTHER ROCKS AND IN MANY PLACES HAVE INTRUDED THE ORE BODIES. THE OUTLINE OF THE INTRUSIVE CONTACT IS CRESCENTIC AND OPENS TOWARD THE EAST, WITHIN WHICH AN AREA OF GRANITIC OUTCROP 8 KM IN DIAM. IS ENCLOSED BY MM TERRANE. THE DIP OF THE CONTACT RANGES FROM 70-90 DEGREES TOWARD THE MM LIMESTONE. INTRUSIVE CONTACT INTERSECTS BEDDING IN THE LIMESTONE AT A SMALL ANGLE. FAULTS OF TWO AGES WERE MAPPED. EARLIER FAULTS HAVE STRIKES RANGING FROM N 15 W TO N 40 W AND DIPS FROM 80 E TO VERTICAL. DIABASE DIKES INTRUDED ALONG THESE OLDER FAULTS. YOUNGER FAULTS OF VARIOUS ATTITUDES CUT THE DIKES. ONE BETWEEN THE NOCHE AND CUATE MINES HAS A HORIZONTAL DISPLACEMENT OF MORE THAN 250 M. NONE OF THE FAULTS ARE MINERALIZED. ; INFO.SRC : 1 PUB
Deposit SEVERAL LENSES OF SCHEELITE-BEARING TACTITE ALONG INTRUSIVE CONTACT. AT THE SURFACE THE MAIN ORE BODY IS 20 M LONG AND 3 M WIDE FROM WALL TO WALL, BUT WIDTH INCLUDES THAT OF INTRUDED DIABASE DIKE. SCHEELITE MINERALIZATION SPOTTY. SEGMENT OF ORE BODY E OF THE DIKE PINCHES OUT AT A DEPTH OF 5 M. SEVERAL SMALL LENSES NEAR THE S END OF THE CLAIM CONTAIN SOME POWELLITE, BUT LITTLE SCHEELITE.

Reporter information

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

Beyond USGS

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

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