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  3. Mineral Resource Data System (MRDS)

Rio Plata

Past Producer in Chihuahua, Mexico with commodity 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. 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 10098763
MRDS ID MX02242
Record type Site
Current site name Rio Plata
Alternate or previous names Tarahumara

Geographic coordinates

Geographic coordinates: -108.29225, 27.21696 (WGS84)
Location accuracy 500(meters)
Relative position 14 KM FROM GUAZAPARES AND 6 KM FROM TEMORES.

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. PROSPECT ALONG E SIDE PF SEPTENTRION RIVER. 500 M NW IS A SECOND PROSPECT CALLED TARAHUMARA (ON THE W SIDE OF THE RIVER) PROSPECT SHOWN ON 1:50,000 TOPO MAP

Commodities

Commodity Importance
Silver Primary

Comments on the commodity information

  • ANALYSIS OF GANGUE: 80% QTZ, 6.75% FE OXIDES, 2.00% CALCITE, 3.2% S, 0.13% MN, 5.00% ALUMINA, 2.00% MG.

Materials information

Materials Type of material
Argentite Ore
Silver Ore

Analytical data

Result HIGH GRADE ZONES OF SECONDARY VEINLETS: 3,671-11,343 G/TON AG.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -108.29225, 27.21696
ListMap

Economic information

Ore body information

  • Strike N 30 W
    Dip 65 SW

Comments on the geologic information

  • GEOL.COM: VOLC. LIKELY EARLY TERT

Economic information about the deposit and operations

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

Mining district

District name Guazapares - Temoris Area

Comments on the workings information

  • TUNNELS, SHAFTS, AND STOPES OF "CONSIDERABLE" LENGTH.

Reference information

Bibliographic references

  • Deposit

    GONZALEZ R., J., 1956, MEMORIA GEOLOGICO-MINERA DEL ESTADO DE CHIHUAHUA: CONGRESO GEOLOGICO INTERNACIONAL, XX, DURANGO, MEXICO, 1956, P. 105-106.

  • Deposit

    SKINNER, E.N., AND PLATE, H.R., 1915, MINING COSTS OF THE WORLD: NEW YORK, N.Y., MCGRAW-HILL BOOK CO., INC., P. 195.

  • 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 (G12-3)

  • Deposit

    SPP, 1979,CARTA GEOLOGICA CIENEGUI (G12B49)

  • Deposit

    GOODELL AND HALL, 1988, EL PASO GEOLOGICAL SOCIETY GUIDEBOOK.

  • Production

    SKINNER AND PLATE, 1915.

General comments

Subject category Comment text
Deposit AG VEINS IN FRACTURED ANDESITES. GENERAL ATTITUDE: N 30 W, 65 SW. 1.3-3.0 M WIDE. BEST ORE IN SECONDARY VEINLETS, 0.3-2.5 M WIDE, ALONG WALLS OF LARGER VEINS. ORE: ARGENTITE, BROMARGYRITE, AND NATIVE AG IN QUARTZ-CALCITE-IRON OXIDE MATRIX.
Deposit SILVER OCCURRENCE ALONG THE TRIBUTARY TO RIO SEPTENTRION. ; 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-JUN-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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