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Zaaiplaats

Producer in South Africa with commodities Tin, Tungsten
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Ownership information
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10021623
MRDS ID DE00301
Record type Site
Current site name Zaaiplaats

Geographic coordinates

Geographic coordinates: 28.75142, -24.0467 (WGS84)
Relative position OREBODY, 100 M

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Comments on the location information

  • 60 KM S.E. OF UYUNI, FARTHER SOUTH THAN MOST OF THE BOLIVIAN TUNGSTEN DEPOSITS.

Commodities

Commodity Importance
Tin Critical Primary
Tungsten Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Bobbejaankop Granite
    Rock description Bobbejaankop Granite
    Stratigraphic age (youngest) Paleoproterozoic

Nearby scientific data

(1) 28.75142, -24.0467
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Economic information

Geologic structures

Type of structure Regional
Structure description Plutonic

Ore body information

  • Depth to top 0M

Comments on the geologic information

  • PRINCIPAL MINERAL ASSEMBLAGES: WLFM + CSTR + STNT + BSMN + CLCP + SPLR + PYTT + PYRT + GOLD + QRTZ. WOLFRAMITE IS PRESENT IN POCKETS AND VEINS IN TOURMALINIZED HORNFELS. SEPARATE VEIN SYSTEMS RICH IN TIN, BISMUTH-COPPER AND TUNGSTEN (ANSTETT, T.F., 1985, P. 14). MINERALIZED VEINS HAVE AVERAGE WIDTH OF 40 CM, EXTENDING AT LEAST 400 M AND GOING 250 M IN DEPTH.
  • PRINCIPAL MINERAL ASSEMBLAGES: CSTR + SCLT + FLRT + TRML + SRCT. MINERALIZATION OCCURS IN PIPES AND AS DISSEMINATIONS IN HIGHLY ALTERED AND REPLACED HOST GRANITE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1906
Year of first production 1906
Year of last production 1984

Ownership information

  • Type Owner-Operator
    Owner Zimro (Pty) Ltd.

Comments on the production information

  • ANNUAL ITEMS 1-5: 377 MT AVERAGE, 1980-1984.

Workings at the site

  • Type of workings Surface/Underground
    Area 1800HA

Comments on the workings information

  • MINERALIZED AREA AROUND CERRO DE TAZNA

Comments on development

  • ACTIVE DEVELOPMENT IN MINE: YES. TYPE OF DEVELOPMENT: UNDERGROUND STOPING AND QUARRYING. ACTIVE EXPLORATION IN DISTRICT: NO. ASSESSMENT: MODERATE TERM TIN PRODUCER ON A MODERATE SCALE. POSSIBILITY TO PRODUCE TUNGSTEN ON A SMALL SCALE. IN RECENT YEARS TUNGSTEN HAS ONLY BEEN RECOVERED VERY SPORADICALLY.

Reference information

Bibliographic references

  • Deposit

    STRAUSS, C.A., 1954, MEMOIR GEOLOGICAL SURVEY OF SOUTH AFRICA, NO. 46, 252 P.

  • Deposit

    LENTHALL, D.H. AND HUNTER, D.R., 1977, PRECAMBRIAN RESEARCH, VOL. 5, P. 359-400.

  • Deposit

    DAVIS, R.D., ALLSOPP, H.L., ERLANK, A.J., AND MANTON, W.I., 1970, GEOLOGICAL SOCIETY OF SOUTH AFRICA SPECIAL PUBLICATION NO. 1, P. 576-593.

General comments

Subject category Comment text
Deposit ONE OF THE EARLIER (WORLD WAR I) SOURCES OF TUNGSTEN IN BOLIVIA
Deposit DEPTH OF UNCONSOLIDATED COVER: 0 M. PRODUCT UPGRADED BEFORE EXPORT: CONCENTRATE. STRAUSS, C.A., 1954 IS THE BEST DESCRIPTION OF MINERALIZATION. LENTHALL AND HUNTER, 1977 IS BEST DESCRIPTION OF GEOCHEMISTRY OF MINERALIZED BUSHVELD GRANITES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1984 Bowles, Michael Geological Survey of South Africa

Beyond USGS

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

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