Morro Do Vento

Past Producer in Bahia, Brazil with commodities Gold, Uranium
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. Geologic structures
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10065236
MRDS ID TC40343
Record type Site
Current site name Morro Do Vento
Alternate or previous names Gomes Costa Adit, Main Reef

Geographic coordinates

Geographic coordinates: -40.52087, -11.26475 (WGS84)
Elevation 910
Relative position 12 KM SOUTH OF JACOBINA.

Site location context

Political divisions (FIPS codes)

Bahia(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Bahia

Comments on the location information

  • 350 KM BY ROAD NW OF SALVADOR. IN SERRA DE JACOBINA.

Commodities

Commodity Importance
Gold Primary
Uranium Tertiary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Uraninite Ore
Biotite Gangue
Chlorite Gangue
Chromite Gangue
Quartz Gangue
Sericite Gangue

Analytical data

Result MAIN REEF (42 SAMPLES): AVERAGES 10 G/MT AU, 0.0076% EU3O8
Result ZONE 1 (11 SAMPLES): AVAERAGES 7.2 G/MT AU, 0.012% EU3O8
Result ZONE 2 (5 SAMPLES): AVERAGES 14.3 G/MT AU, 0.005% EU3O8
Result ZONE 3 (8 SAMPLES): AVERAGES 10.0 G/MT AU, 0.011% EU3O8.

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Serra Do Corrego Formation, Jacobina Series
    Rock description Serra Do Corrego Formation, Jacobina Series

Nearby scientific data

(1) -40.52087, -11.26475

Economic information

Geologic structures

Type of structure Local
Structure description Morro Do Vento Is A Fault Block Bounded On N, W, And S By Faults.

Ore body information

  • Name MAIN REEF
    Strike N10E-N10W
    Dip 55E
    Thickness 2M
    Length 1260M

Comments on the geologic information

  • ROCKS STRIKE N, DIP 55E AND UNCONFORMABLY OVERLIE GRANITIC GNEISS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1700

Mining district

District name Jacobina District

Comments on the production information

  • MINED MOST INTENSELY IN 1930'S.

Comments on the workings information

  • NONE DEEPER THAN 15 M. GOMES COSTA ADIT (130 M).

Comments on development

  • GOMES COSTA MINE DEVELOPED BY PORTUGUESE-BRAZILIAN GROUP IN 1800'S, CLOSED IN 1890.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit Discovery Year: 17TH CENTURY
Deposit GOLD-BEARING CONGLOMERATE-QUARTZITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1993 Page, Norman J. U.S. Geological Survey
Updater 01-DEC-1994 Page, Norman J. U.S. Geological Survey

Beyond USGS

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