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  3. Mineral Resource Data System (MRDS)

Ansongo, Mali

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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10079679
MRDS ID W029743
Record type Site
Current site name Ansongo, Mali
Alternate or previous names Agaula, Tonditio, Tassiga

Geographic coordinates

Geographic coordinates: 0.48482, 15.6671 (WGS84)

Site location context

Political divisions (FIPS codes)

Mali(country)

Geographic areas

Country
Mali

Comments on the location information

  • NUMEROUS OREBODIES IN A BELT OF ABOUT 40 KM LENGTH, BETWEEN LELEHOYAND YOUNI

Commodities

Commodity Importance
Manganese Critical Primary

Materials information

Materials Type of material
Manganite Ore
Psilomelane Ore
Pyrolusite Ore

Analytical data

Result MNO2: 67 %
Result FE 3.4 %

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Arkose

Nearby scientific data

(1) 0.48482, 15.6671
ListMap

Economic information

Ore body information

  • General form LENSES, TABULAR
    Thickness 40M

Comments on the geologic information

  • IT IS ASSUMED THAT THE GONDITES ARE OF VOLCANOGENIC SEDIMENTARY ORIGIN.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1907
Discoverer L. Desplagnes

Reserves and resources

  • Type In-situ
    Estimate year 1971
    Total resources 8000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 30 wt-pct Manganese Major 1971

Reference information

Bibliographic references

  • Analytical Data

    SRC.REF: ARITHM. MEAN FROM 10 ANALYSES

  • Deposit

    REICHELT, R. 1972: GEOLOGIE DU GOURMA MEMOIRES DU BRGM NO.5

  • Deposit

    1971 , DIREXPL , SONAREM RESERVE ESTIMATE E

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1978 Krauss, Ulrich H. U.S. Geological Survey

Beyond USGS

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

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