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Los Borregos

Past Producer in Chihuahua, Mexico with commodity Manganese
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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. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10049445
MRDS ID MX02111
Record type Site
Current site name Los Borregos
Alternate or previous names Consolidada, Verdun, Corriente, Nueva Carolina, Ampliacion Wallito, Russell.
Related records 10182711

Geographic coordinates

Geographic coordinates: -107.29225, 31.05461 (WGS84)
Relative position A5 SQ. KM AREA, 18 KM E OF GUZMAN.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

El Paso(quadrangle 1:250,000 scale)

Geographic areas

Country State
Mexico Chihuahua

Comments on the location information

  • ESTIMATED TO WITHIN 15 SECONDS. TWO MN DEPOSITS 10 KM TO THE SOUTH ARE EL FRESNAL AND SALAZAR.

Commodities

Commodity Importance
Manganese Critical Primary

Comments on the commodity information

  • THREE ANALYSES OF ORE SHOWED: 27.4-40.4% MN, 25.2-38.0% CALCIUM CARBONATE, 4.3-4.8% BAO, 0.45-4.9% SILICA, 0.07-1.7% ALUMINA, 0.7-1.4% FE, <0.05-0.1% ZN, 0.28-0.31% S, <0.01-0.064% P.

Materials information

Materials Type of material
Psilomelane Ore
Pyrolusite Ore
Barite Gangue
Calcite Gangue
Hematite Gangue

Analytical data

Result AVG. GRADE: 20-25% MN. (HAND SORTED ORE: 40% MN)

Mineral occurrence model information

Model code 156
USGS model code 25g
Deposit model name Epithermal Mn

Host and associated rocks

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

Nearby scientific data

(1) -107.29225, 31.05461
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Two Normal Fault Systems.

Ore body information

  • Strike 1>N 5 E TO N 20 W; 2>N 70 E TO N 70 W
    Dip 1&2>OPPOSING DIPS, 60-90, AVE. 75-80
  • Dip 1&2>OPPOSING DIPS, 60-90, AVE. 75-80

Comments on the geologic information

  • COUNTRY ROCK DOMINANTLY ANDESITE FLOWS AND BRECCIAS, LOCALLY INTRUDED BY YOUNGER RHYOLITIC TO DACITIC VOLCANICS.

Economic information about the deposit and operations

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

Mining district

District name Sierra De Borregos/Ascencion

Ownership information

  • Type Owner
    Owner Minas Consolidadas, S. A.
    First year 1950
    Last year 1954

Production statistics

  • Year 1942
    Period 1941-1942
    Material ORE MN
    Accuracy Estimate
    Description Cp_Grade: ^42%(?) Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 42wt-pct

Comments on development

  • ACTIVE DURING WW1, WW2 AND 1950-1954.

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

    SALAS, G.P., 1975, CARTA Y PROVINCIAS METALOGENETICAS DE LA REPUBLICA MEXICANA: CONSEJO DE RECURSOS MINERALES PUBLICACION 21 E, P. 189.

  • Deposit

    TRASK, P.D. AND RODRIGUEZ C., J. JR., 1948, MANGANESE DEPOSITS OF MEXICO: U.S. GEOLOGICAL SURVEY BULLETIN 954-F, P. 238-239.

  • Deposit

    WILSON, I.F., 1956, MANGANESE DEPOSITS OF THE SIERRA DE BORREGOS, CHIHUAHUA, MEXICO IN GONZALEZ R., J., (ED.), 1956, SYMPOSIUM SOBRE YACIMIENTOS DE MANGANESO, TOMO III: CONGRESO GEOLOGICO INTERNACIONAL, XX, MEXICO, 1956, P. 109-117.

  • Deposit

    CLARK, K.F., AND GOODELL, P.C., (EDS.), 1983, GEOLOGY AND MINERAL RESOURCES OF NORTH-CENTRAL CHIHUAHUA: EL PASO GEOLOGICAL SOCIETY, GUIDEBOOK, 1983 FIELD CONFERENCE, 0CT. 7-9, 1983, PLATE 1, SCALE 1:500000.

  • Deposit

    COX, D.P., AND SINGER, D.A., 1986, MINERAL DEPOSIT MODELS: USGS BULLETIN 1693, 379 P.

  • Deposit

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

  • Production

    TRASK AND RODRIGUEZ, 1948; WILSON, 1956.

General comments

Subject category Comment text
Deposit MN OXIDE ORE IN WELL-DEFINED STEEP-DIPPING FISSURE VEINS IN TERTIARY VOLCANIC ROCKS AND BRECCIATED ZONES. AT LEAST 15 "EXPLOITABLE" VEINS ALONG TWO MAIN FRACTURE SYSTEMS RUNNING NS AND EW. STRIKE LENGTHS UP TO 830 M, AVE. 50-200 M. AVE. THICKNESS: 1.0-1.5 M, MAX. 2-3 M. DEPTH TO BOTTOM: A50 M. (SMALLER VEINS, 10-30 CM WIDE, NOT CONSIDERED ECONOMIC.) VEINS CONSIST OF A50% PSILOMELANE PLUS "BLACK CALCITE" CONTAINING FINELY DISSEMINATED MN OXIDES, AND 50% WHITE CALCITE. VEINS HAVE BANDED STRUCTURE AND COMMONLY CONTAIN VUGS LINED WITH CALCITE CRYSTALS. ALSO: BRECCIATED ZONES CONTAINING MN OXIDES CEMENTING FRAGMENTS OF VOLCANIC ROCKS, GENERALLY ALONG HANGING-WALLS OF VEINS. PARAGENESIS: 1> BLACK CALCITE, 2> PSILOMELANE, 3> WHITE CALCITE.
Deposit SIMILAR DEPOSITS: NUEVA CASAS GRANDES, VILLA AHUMADA, OJINAGA, AND DEPOSITS NEAR CHIHUAHUA CITY. ; INFO.SRC : 1 PUB

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1988 Leonard, Kenneth R. (Page, Norman J.) U.S. Geological Survey
Updater 01-JUN-1988 Leonard, Kenneth R. U.S. Geological Survey
Updater 01-DEC-1990 Staude, John-Mark 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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