Rio Tercero

Prospect in Cordoba, Argentina with commodities REE, Thorium
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10255537
MAS/MILS ID 3570090028
Record type Site
Current site name Rio Tercero

Geographic coordinates

Point of reference Claim
Geographic coordinates: -64.19934, -32.03073 (WGS84)
Elevation 100
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Cordoba(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina Cordoba

Commodities

Commodity Importance
REE Critical Primary
Thorium Secondary

Materials information

Materials Type of material
Monazite Unknown
Thorite Unknown

Nearby scientific data

Claim (1) -64.19934, -32.03073

Economic information

Ore body information

  • Thickness 2M
    Length 100000M
    Width 100M
    Depth to top 0.2M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 PLACER
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Shape of Orebody #3 IRREGULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1.5
    Min. Thick. Unconsol. Mat. 1.5
    Date of Last Modification 860905

Economic information about the deposit and operations

Operation type Surface
Development status Prospect
Commodity type Metallic
Significant No
Discovery year 1957
Mining method Open Pit
Milling method Magnetic And Electrostatic

Ownership information

  • Type Owner
    Owner Government Of Argentina
    Interest 100
    Home office Argentina
    Year 1982

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Inferred 31700000mt ore
    Total resources 31700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Thorium ThO2 0.0007 wt-pct Thorium Minor 1982
    REE REE 0.0104 wt-pct REE Major 1982

Comments on the reserve resource information

  • MONAZITE CONTENT IN THE SANDS IS 0.017287%. THUS, TOTAL MONAZITE = 31.7 MMT*0.017% = 5,480 MT. REO IN MONAZITE IS 60%, SO TOTAL REO = 5,480 MT*60% = 3,288 MT. REO% IN ORE = 3,288/31.7MMT = 0.01037%. THO2 IN MONAZITE IS 3.8%, SO TOTAL THO2 = 5,480 MT*3.8% = 208.24 MT, AND THO2 CONTENT IN ORE = 208.24 MT/31.7MMT = 0.000657%. MINING RECOVERY IS 70%, EQUAL TO 70%*31.7MMT = 22.19MMT.
  • MONAZITE AT 60% REO (RARE EARTH OXIDE) AND 3.8% THORIUM OXIDE

Reference information

Bibliographic references

  • Deposit

    ANGELELLI, V. AND CHAAR E. (1965) - CONTRIBUCION AL

  • Deposit

    CONCOCIMIENTO DEL ALLUVION DE RIO TERCERO (CORDOBA) SU

  • Deposit

    INVESTIGACION POR MONACITA Y OTROS MINERALES DENSOS.

  • Deposit

    COMISION NACIONAL DE ENERGIA ATOMICA. INFORME 139 PP.

  • Deposit

    39, BUENOS AIRES.

  • Deposit

    ANGELELLI, V., FERNANDEZ LIMA J.C., HERRERA, A, Y ARISTARAIN

  • Deposit

    L. (1970) - DESCRIPCION DEL MAPA METALOGENETICO DE LA

  • Deposit

    REPUBLICA ARGENTINA. MINERALES METALIFEROS. ANALES

  • Deposit

    XV, DIRECCION NACIONAL DE GEOLOGIA Y MINERAIA P. 145,

  • Deposit

    BUENOS AIRES.

General comments

Subject category Comment text
Deposit THE DEPOSIT IS NOT CONSIDERED ADEQUATELY EXPLORED; IT CONSISTS OF ABOUT 100 KM OF RIVER (RIO TERCERO) BANKS THAT HAVE BEEN SAMPLED IN ONLY A FEW PLACES ALONG THE TOTAL LENGTH. THE DEPOSIT WAS NOT ANALYZED FOR INCLUSION IN THE REO AVAILABILITY STUDY.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-JUL-94 Coffman, Joe U.S. Bureau of Mines

Beyond USGS

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