Sao Bento

Producer in Minas Gerais, Brazil with commodity Gold
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. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10107187
MRDS ID TC39237
Record type Site
Current site name Sao Bento
Alternate or previous names Includes West Branch Lode, Middle Branch Lode, Sao Bento Lode, Eastern Branch Lode, Ore Bodies No. 1, No. 2, And Pinto Bem

Geographic coordinates

Geographic coordinates: -43.47588, -19.9611 (WGS84)
Relative position SE SIDE OF CORREGO SAO BENTO, 1 KM SW OF CONFLUENCE WITH RIO SOCORRO

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

  • NEAR FALAN
  • USED MINE SYMBOL

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Covellite Ore
Gold Ore
Pyrite Ore
Pyrrhotite Ore
Sphalerite Ore
Magnetite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate
    Stratigraphic age (youngest) Neoarchean
    Stratigraphic age (youngest) Neoarchean
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Iron Formation
    Rock unit name Rio Das Velhas Supergroup
    Rock description Rio Das Velhas Supergroup

Nearby scientific data

(1) -43.47588, -19.9611

Economic information

Ore body information

  • General form TABULAR
    Strike N30-35E
    Dip 50-60SE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1775
Discoverer Garunpeiros
Year of first production 1867

Ownership information

  • Type Operator
    Owner Sao Bento Gold Estates Ltd. ; South American Gold Areas, Ltd. , Unamgem Minera
    First year 1898
    Last year 1923

Comments on the production information

  • ACTIVE DEVELOPED PRODUCER
  • ORE AT 14 G/T AU HAD A 50% RECOVERY RATE AND WAS OXIDE ORE. ORE AT 11 G/T AU WAS OXIDE AS WELL AS AU. REPORTED TO BE IN PRODUCTION 1986.

Comments on the reserve resource information

  • ORE(1) ESTIMATE MADE OF OREBODY NO. 1 WITH A WIDTH OF 6.0 FT MADE FOR SOUTH AMERICAN GOLD AREAS LTD; RECOVERY EXPECTED TO BE 91% FOR 1980 RESERVES.

Comments on the workings information

  • 9-10 LEVELS AT 20-30 M APART ABOUT 1100 DRIFT, ADITS

Comments on development

  • BY 1905 OXIDIZED ORE WORKED OUT TO DEPTHS OF 600-800 FT, 1906-1923 OPERATIONS WERE SUSPENDED.
  • MINED AT THE END OF THE 19TH CENTURY BY ENGLISH COMPANIES.

Reference information

Bibliographic references

  • Deposit

    CEASAR, P. DE A.B., 1984, PRINCIPIAS DEPOSITOS MINERAIS: CONCEITOS, METODOLOGIA E LISTAGEM IN SCHOBBENHAUS, C., AMEIDA CAMPOS, D., DERZE, G.R., AND ASMUS, H.E., EDS., GEOLOGIA DO BRASIL: BRASILIA, DEPARTAMENTO NACIONAL DA PRODUCAO MINERAL, P. 249-419.

  • Deposit

    LADEIRA, E.A., 1991, GENESIS OF GOLD IN QUADRILATERO FERRIFERO, A REMARKABLE CASE OF PERMANENCY, RECYCLING AND INHERITANCE - A TRIBUTE TO DJALMA GUIMARAES, PIERRE ROUTHIER AND HANS RAMBERG: IN BRAZIL GOLD '91 E.A. LADEIRA, ED., BALKEMA ROTTERDAM, P. 11-30.

  • Deposit

    ABREU, A.S., DINIZ, H.B., BUENO DO PRADO, M.G. AND SANTOS, S.P., 1988, A MINA DE OURO DE SAO BENTO, SANTA BARBARA, MINAS GERAIS IN SCHOBBENHAUS BRASIL; V. 3, P. 393-411.

  • Deposit

    SIMMONS, G.C., 1968, GEOLOGY AND MINERAL RESOURCES OF THE BARAO DE COCAIS AREA, MINAS GERAIS, BRAZIL: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 341-H, 46 P.

  • Other Database

    CIMRI

  • Production

    CEASAR (1984). ABREU AND OTHERS (1988)

General comments

Subject category Comment text
Deposit Discovery Year: END OF 18TH CENTURY
Deposit THREE HORIZONS, THE MIDDLE AND SAO BENTO CONTAIN GOLD, ORE BODIES SPREAD ALONG STRIKE LENGTH OF 685 M AND WIDTH OF 45 M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1993 Page, Norman J. U.S. Geological Survey

Beyond USGS

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