1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Dois Corregos

Producer in Minas Gerais, Brazil with commodity Iron
Map
XML
JSON
KML
B
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. Economic information about the deposit and operations
  12. Mining district
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10084865
MRDS ID W700083
Record type Site
Current site name Dois Corregos

Geographic coordinates

Geographic coordinates: -43.26672, -19.63028 (WGS84)
Location accuracy 2000(meters)
Relative position 80 KM NE OF BELO HORIZONTE

Site location context

Political divisions (FIPS codes)

Minas Gerais(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Minas Gerais

Comments on the location information

  • ARBITRARY POINT IN IRON FORMATION IN NOSE OF FOLD

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Hematite Ore
Quartz Gangue

Mineral occurrence model information

Model code 241
USGS model code 34a
Deposit model name Superior Fe (BC name is Lake Superior & Rapitan types iron-formation)

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Nova Lima Group, Rio Das Velhas Series;Caraca Group, Minas Series;Piracica Group, Minas Series
    Rock description Nova Lima Group, Rio Das Velhas Series;Caraca Group, Minas Series;Piracica Group, Minas Series
    Stratigraphic age (youngest) Paleoproterozoic
    Chronological age 2250
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Iron Formation
    Rock unit name Caue Formation, Itabira Group, Minas Series
    Rock description Caue Formation, Itabira Group, Minas Series

Nearby scientific data

(1) -43.26672, -19.63028
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fold Nose Of Assymetric Syncline With Ne Trending Axis.

Comments on the geologic information

  • THE IRON FORMATION IS OVERLAIN BY THE DOLOMITE WITH AN INTERGRADATIONAL, INTERFINGERING CONTACT.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Mining district

District name Itabira District

Ownership information

  • Type Owner
    Owner Campanhia Vale Do Rio Doce

Production statistics

  • Year 1954
    Material ORE
    Accuracy Accurate
    Description Ap_Grade: ^68.4% Fe, 0.79% Sio2, 0.65% Al2o3, 0.026% P
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Phosphorus-Phosphates Phosphorus 0wt-pct
    Al2O3 Ore Aluminum Aluminum 1wt-pct
    SiO2 Ore Silica Silica 1wt-pct
    Ore Iron Iron 68wt-pct

Comments on the production information

  • 1954 FIGURE IS BASED ON SHIPPED MATERIAL. THE 1984 FIGURE IS COMBINED PRODUCTION OF CONCEICO AND DOIS CORREGAS MINES. WORKED INTERMITTANTLY ON SMALL SCALE BEFORE 1975.

Reserves and resources

  • Type In-situ
    Estimate year 1963
    Total resources 212000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 44 wt-pct Iron Major 1963
  • Type In-situ
    Estimate year 1963
    Total resources 276000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 67 wt-pct Iron Major 1963
  • Type In-situ
    Estimate year 1985
    Total resources 2100000000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Iron Fe 64.4 wt-pct Iron Major 1985

Comments on the reserve resource information

  • THE 1985 ESTIMATES ARE FOR COMBINED RESERVES OF CONCEICO AND DOIS CORREGAS MINES.

Comments on the workings information

  • OPEN PIT IN 1982. 1.2 KM LONG AND 0.6 KM WIDE WITH REJECT TO MINERALIZED ROCK = 1.13 TO 1.

Reference information

Bibliographic references

  • Deposit

    ENGINEERING AND MINING JOURNAL, 1985, V. 186, NO. 11, P. 56.

  • Deposit

    DORR AND OTHERS, 1963, U.S. GEOLOGICAL SURVEY BULLETIN 341-C, P. 94-95.

  • Deposit

    V. DE MELO, M.T., BORBA, R.R., COELHO, W.A., 1986, O DISTRITO FERRIFERO DE ITABIRA: MINAS DO CAUE, CONCEICAO, DOIS CORREGOS, PERIQUITO, ONCA, CHACRINHA E ESMERIL, IN PRINCIPAIS DEPOSITOS MINERIAS DO BRASIL, EDS. C. SCHOBBENHAUS AND C.E.S. COELHO: MINISTERIO DAS MINAS E ENERGIA, BRAISLIA, V. II, P. 7-28.

  • Production

    V. DE MELO AND OTHERS (1986).

  • Reserve-Resource

    DORR AND OTHERS, 1963; ENGINEERING AND MINING JOURNAL, 1985

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1988 Leonard, Kenneth R. U.S. Geological Survey
Updater 01-MAR-1994 Page, Norman J. U.S. Geological Survey
Updater 01-JAN-1993 Bolm, Karen S. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site