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Marau Manganese Deposit

Past Producer in Bahia, Brazil with commodity Manganese
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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. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10069043
MRDS ID W002327
Record type Site
Current site name Marau Manganese Deposit

Geographic coordinates

Geographic coordinates: -39.16557, -14.18101 (WGS84)
Elevation 150

Site location context

Political divisions (FIPS codes)

Bahia(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Bahia

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Hollandite Ore
Lithiophorite Ore
Spessartite Ore
Graphite Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Granulite
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -39.16557, -14.18101
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Minor Crossfaulting

Ore body information

  • General form BEDDED LENSES
    Strike N
    Dip W
    Thickness 10M
    Length 5000M

Comments on the geologic information

  • DEPOSIT FORMED AFTER HOST FORMED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Production statistics

  • Year 1973
    Period ? - 1973
    Material MN
    Accuracy Accurate
    Description Cp_Grade: ^36 % Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Manganese Manganese 36wt-pct

Comments on the production information

  • THE AMOUNT GIVEN IS PRODUCTION FIGURE TO DATE

Comments on the reserve resource information

  • 1) THIS RESERVE IS ORE IN PLACE, TO DEPTH OF 45 METERS. 2) THIS RESERVE AMOUNT IS THE SUM OF TWO SHALLOW TYPE DEPOSITS: SLUMPED BLOCKS ABOVE ORE IN PLACE AND COLLUVIAL ORE. PRESENT PRODUCTION IS LARGELY FROM TYPE 2).

Comments on the workings information

  • ORE DEPOSIT (LOCATED ON NORTH-SOUTH TRENDING RIDGES) ZONE CAN BE FOLLOWED INTERMITTENTLY FOR 20 KM (ABOUT 5 KM WIDE), AND CONTINUOUSLY FOR 8 KM.

Comments on development

  • THE MANGANIFEROUS ZONE IS MORE RESISTANT TO WEATHERING THAN OTHER MATERIAL AND FORMS THE CORE OF RIDGELINES.

Reference information

Bibliographic references

  • Deposit

    DORR, JOHN, 1974, RESERVES AND RESOURCES OF MANGANESE ORE IN BRAZIL

General comments

Subject category Comment text
Deposit THE ASSOCIATED GRAPHITE WITH THE ORE ALLOWS GEOPHYSICAL (RESISTIVITY) METHODS TO AID PROSPECTING.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1974 Warfle, Thomas M. U.S. Geological Survey

Beyond USGS

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

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