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  3. Mineral Resource Data System (MRDS)

Foulalaba Deposit

Occurrence in Mali 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. Alteration
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10003926
MRDS ID AD00321
Record type Site
Current site name Foulalaba Deposit

Geographic coordinates

Geographic coordinates: -7.38217, 10.6675 (WGS84)
Relative position 2.2 KM WSW OF THE VILLAGE OF FOULALABA IN SW MALI; 240 KM S OF BAMAKO.

Site location context

Political divisions (FIPS codes)

Mali(country)

Geographic areas

Country
Mali

Comments on the location information

  • CLOSE TO IMPROVED ROAD

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Garnet Gangue
Mica Gangue

Alteration

  • (Local) Lateritic

Nearby scientific data

(1) -7.38217, 10.6675
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Economic information

Geologic structures

Type of structure Local
Structure description A Northeast Trending Fault Appears To Truncate And Offset The Thickest Portion Of The Horizon

Ore body information

  • General form MASSIVE OR THINNLY-BANDED
    Thickness 10M
    Length 250M
  • General form MASSIVE OR THINNLY-BANDED

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Comments on the reserve resource information

  • THE POTENTIAL RESERVES OF THE IN-SITU PORTION OF THE DEPOSIT BASED ON THE PRESENT OUTCROP PATTERN (TO A DEPTH OF ABOUT 40 M BELOW THE SURFACE) ARE ABOUT 250,000 TONS WITH AN AVERAGE GRADE OF 15-20% MN. THE LATERITIC HARDCAP SURROUNDING THE MANGANESE HORIZON CONTAINS LUMPS OF MANGANESE ORE AND MAY CONTAIN AN ADDITIONAL 250,000 TONS OF ORE BUT AT A LOWER GRADE. UNLESS MAPPING INDICATES THAT THE HORIZON ALONG STRIKE, THE LIMITED STRIKE LENGTH, TONNAGE POTENTIAL AND LOW GRADE OF THIS DEPOSIT DO NOT WARRANT ANY FURTHER WORK AT THIS TIME.

Comments on the workings information

  • THREE TRENCHES WERE DUG ACROSS THE HORIZON BY THE DNGM AND YIELDED AN AVERAGE GRADE OF 15.8% MN.

Reference information

Bibliographic references

  • Deposit

    OLSON, S.F., 1991, UNPUBLISHED MEMO, BHP-UTAH MALI, PP. 6.

General comments

Subject category Comment text
Deposit THIN BANDS APPEARED TO BE FINE-GRAINED MICA AND/OR GARNET. IN SOME PLACES THE BANDING WAS INTENSELY FOLDED INTO SMALL-SCALE (A=50 CM) FOLDS. THE ORIENTATION OF THE MAJORITY OF THE OUTCROPS IS N40W 60-70W. A NORTHEAST TRENDING FAULT APPEARS TO TRUNCATE AND OFFSET THE THICKEST PORTION OF THE HORIZON.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1991 Bolton, Barrie R. BHP Utah Industries

Beyond USGS

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

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