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  3. Mineral Resource Data System (MRDS)

Sierra Grande, East Sector

Occurrence in Rio Negro, Argentina with commodity Iron
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10078106
MRDS ID W026263
Record type Site
Current site name Sierra Grande, East Sector

Geographic coordinates

Geographic coordinates: -65.33262, -40.83089 (WGS84)
Relative position GOLFO SAN MATIAS, 30 KM FROM COAST, 135 KM N OF PUERTO MADRYN.

Site location context

Political divisions (FIPS codes)

Rio Negro(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina Rio Negro

Commodities

Commodity Importance
Iron Tertiary

Materials information

Materials Type of material
Magnetite Ore

Alteration

  • (Local) Contact Metamorphism Is Produced By Granodiorite Intrusions.

Analytical data

Result CHEMISTRY OF RESERVES IN PERCENT: FE, 55 %
Result SIO2, 6 %
Result S, 0.44 % AND P, 1.4 %
Result AL2O3
Result 3 - 4 %

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -65.33262, -40.83089
ListMap

Economic information

Ore body information

  • General form LENTICULAR
    Thickness 8M
  • General form LENTICULAR

Controls for ore emplacement

  • At Surface The Ore Mineral Is Hematite, Probably Due To Decomposition Of Magnetite, The Principal Mineral.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Sierra Grande

Reserves and resources

  • Type In-situ
    Estimate year 1970
    Indicated 10000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 54 wt-pct Iron Trace 1970

Reference information

Bibliographic references

  • Deposit

    ALVARADO, BENJAMIN, 1970 , IRON ORE DEPOSITS OF SOUTH AMERICA, IN SURVEY OF WORLD IRON ORE RESOURCES -- OCCURRENCE AND APPRAISAL: NEW YORK, UNITED NATIONS, P. 302 - 380

  • Deposit

    ANGELELLI, V., FERNANDEZ LIMA, J. C., HERRERA, A., AND ARISTARAIN, L., 1970 . DESCRIPCION DEL MAPA METALOGENETICO DE LA REPUBLICA ARGENTINA: ARGENTINA DIRECCION NAC. DE GEOLOGIA Y MINERIA ANALES, NO. 25 , P. 73 - 85

  • Reserve-Resource

    ALVARADO, 1970

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1973 Cooper, Margaret (Shaffer, Glenn L.) U.S. Geological Survey

Beyond USGS

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

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