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Sahuayacan

Past Producer in Chihuahua, Mexico with commodities Gold, Silver, Manganese, Tellurium, Lead, Copper, Antimony
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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. Alteration
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10049510
MRDS ID MX02237
Record type Site
Current site name Sahuayacan
Alternate or previous names Mines: Santo Nino, Santa Teresa, San Antonio.
Related records 10206485

Geographic coordinates

Geographic coordinates: -108.6381, 28.13358 (WGS84)
Elevation 1000
Location accuracy 2000(meters)
Relative position 2.75 KM S OF SAHUAYACITO, 20 KM SE OF LA REPUBLICA (AU, AG)

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

Commodities

Commodity Importance
Gold Primary
Silver Primary
Manganese Critical Tertiary
Tellurium Critical Tertiary
Lead Tertiary
Copper Tertiary
Antimony Critical Tertiary

Comments on the commodity information

  • TRACES OF BI IN GALENA.

Materials information

Materials Type of material
Argentite Ore
Cervantite Ore
Chalcopyrite Ore
Copper Ore
Galena Ore
Gold Ore
Nagyagite Ore
Petzite Ore
Pyrargyrite Ore
Silver Ore
Stibnite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Andesites Are Propylitically Altered.

Analytical data

Result 120 G/TON AU, 840 G/TON AG.

Mineral occurrence model information

Model code 150
USGS model code 25c
Deposit model name Epithermal vein, Comstock
Mark3 model number 16

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Late Jurassic
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Barranca Formation
    Rock description Barranca Formation
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -108.6381, 28.13358
ListMap

Economic information

Ore body information

  • General form LENSES, CHIMNEYS (RARE)

Controls for ore emplacement

  • Andesite/Shale Contacts

Comments on the geologic information

  • COUNTRY ROCK MADE UP OF LIMESTONES AND BLACK, FISSILE SHALES WITH THIN INTERBEDDED LIMESTONE. BEDDING IN SHALES: N 35 W, 56 NE. WALL ROCKS LOCALLY MINERALIZED WITH AU-AG-BEARING PYRITE NEAR CONTACTS WITH PORPHYRITIC ANDESITE INTRUSIVES. SHALES GRADE INTO PHYLLITES AND SCHISTS IN APPARENT CONTACT WITH GNEISS TO THE WEST. RHYOLITES OCCUR AS THICK PORPHYRY DIKES AND CIRCULAR DOMES UP TO 135 M IN DIAMETER AND 200 M HIGH. VEIN DEPOSITS ARE APPARENTLY ASSOCIATED WITH RHYOLITE DIKES.

Economic information about the deposit and operations

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

Mining district

District name Sahuayacan District/Moris Area

Workings at the site

  • Type of workings Underground
    Overall depth 200M

Comments on the workings information

  • WORKINGS AT SANTO NINO MINE REACHED DEPTHS OF AT LEAST 200 M.

Comments on development

  • PEAK ACTIVITY IN DISTRICT: 1905. GOLD PLACERS IN AREA HELP TO LOCATE VEINS.

Reference information

Bibliographic references

  • Deposit

    GONZALEZ R., J., 1956, MEMORIA GEOLOGICO-MINERA DEL ESTADO DE CHIHUAHUA: CONGRESO GEOLOGICO INTERNACIONAL, XX, DURANGO, MEXICO, 1956, P. 85-89.

  • 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.

  • Deposit

    SECRETARIO DE PROGRAMACION Y PREPUESTO, 1982, MORIS (H12D88) TOPOGRAPHIC QUADRANGLE; INSTITUTO NACIONAL DE ESTADISTICA GEOGRAFIA E INFORMACION, MEXICO D.F., SCALE 1:50,000.

  • Deposit

    SECRETARIO DE PROGRAMACION Y PREPUESTO, 1984, TECORIPA: CARTA GEOLOGICA; INSTITUTO NACIONAL DE ESTADISTICA GEOGRAFIA E INFORMACION, MEXICO D.F., SCALE 1:250,000.

  • Deposit

    BAGG, R.M., 1905, THE SAHUAYCAN DISTRICT, MEXICO: ENGINEERS MINING JOURNAL, V. 79, P. 749-751.

  • Deposit

    TREADWELL, J.C., 1905, THE SAHUAYACAN MINING DISTRICT, MEXICO: ENGINEERS MINING JOURNAL, V 80, P. 1213-1216.

  • Deposit

    WISSER, E., 1966, THE EPITHERMAL PRECIOUS-METAL PROVINCE OF NORTHWEST MEXICO: A.I.M.E. CONFERENCE MAY 5-7, 1965, NEVADA BUREAU OF MINES, REPORT 13, P. 63-92.

General comments

Subject category Comment text
Deposit AU-AG DEPOSITS IN TABULAR VEINS OR LENTICULAR BODIES. HANGING WALLS: ANDESITE PORPHYRY. FOOTWALLS: SLICKENSIDED SHALES. DEPOSITS RANGE IN WIDTH FROM 12-20 M, AVERAGING A 12 M. BEST ORE IN 2.1 M ZONE NEAR HANGING-WALL, GENERALLY SEPARATED FROM WALL ROCKS BY 1.2-1.5 M BAND OF LOW-GRADE MATERIAL. ORE CONSISTS OF QUARTZ + NATIVE GOLD, WITH RARE AU TELLURIDES. LOCALLY: BODIES OF AG SULFIDES ASSOCIATED WITH SULFIDES OF PB, CU, AND FE FORM LENSES 5-15 CM THICK. DEPOSITS ALSO CONTAIN MINOR AMOUNTS OF GALENA, CHALCOPYRITE, NATIVE CU, STIBNITE, CERVANTITE, AND MN OXIDE. A CYLINDRICAL CHIMNEY FOUND IN ONE MINE NEAR SHALE FOOTWALL CONSISTED OF RICH VEINLETS OF ORE MATERIAL IN 21 M HIGH X 10 M WIDE ORE BODY.
Deposit SANTA TERESA MINE: 1500 M FROM SANTO NINO. VEIN 2.4 M WIDE, MAINLY GOLD-BEARING, FOLLOWS FAULT ZONE. CONTAINS FRAGMENTS OF WALL ROCKS. SAN ANTONIO MINE: 4.5 KM FROM SAHUAYACAN. MAINLY AG DEPOSITS. THIS IS ONE OF THE MAJOR MINES OF THE MORIS AREA. ; INFO.SRC : 1 PUB

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-88 Leonard, Kenneth R. (Page, Norman J.) U.S. Geological Survey
Updater 01-MAR-91 Staude, John-Mark G. U.S. Geological Survey
Updater 01-AUG-91 Kibbe, .Rd. U.S. Geological Survey

Beyond USGS

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

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