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  3. Mineral Resource Data System (MRDS)

Otjosondu

Past Producer in Namibia with commodities Manganese, Iron
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Reserves and resources
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10003925
MRDS ID AD00320
Record type Site
Current site name Otjosondu

Geographic coordinates

Geographic coordinates: 18.16816, -21.33026 (WGS84)
Relative position SITUATED AT JUNCTION OF THE DISTRICTS OF OKAHANDJA, OTJIWARONGO AND GOBABIS.

Site location context

Political divisions (FIPS codes)

Namibia(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Namibia

Comments on the location information

  • 170 KM NE OF WINDHOEK; 130 KM BY ROAD TO RAILHEAD AT OKAHANDJA, THEN 320 KM BY RAIL TO PORT AT WALVIS BAY.

Commodities

Commodity Importance
Manganese Critical Primary
Iron Tertiary

Materials information

Materials Type of material
Bixbyite Ore
Braunite Ore
Hausmannite Ore
Hollandite Ore
Jacobsite Ore

Alteration

  • (Local) Minor

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss

Nearby scientific data

(1) 18.16816, -21.33026
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Economic information

Geologic structures

Type of structure Regional
Structure description Complex Folding
Type of structure Local
Structure description Doubly Plunging Synclinorium Southern Limbs Overturned

Ore body information

  • General form MASSIVE
    Strike N 73 E AVERAGE
    Dip 75 AVERAGE
    Plunge direction E AND W
    Thickness 7M
    Length 1700M
    Depth to top 0M
  • General form MASSIVE
    Dip 75 AVERAGE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1904
Year of first production 1939

Mining district

District name Otjosondu Mining District

Reserves and resources

  • Type In-situ
    Estimate year 1956
    Total resources 5000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 48 wt-pct Manganese Major 1956

Reference information

Bibliographic references

  • Deposit

    ROPER, H., 1956, THE MANGANESE DEPOSITS AT OTJOSONDU, SOUTH WEST AFRICA. IN SYMPOSIUM DEL MANGANESO, 20TH INTERNATIONAL GEOLOGICAL CONGRESS, MEXICO, 2. P. 115-122.

  • Reserve-Resource

    ROPER, H., 1956, P.122.

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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