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Pomfret Field

Producer in Eastern Cape, South Africa with commodity Asbestos
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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. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10084814
MRDS ID W700026
Record type Site
Current site name Pomfret Field
Related records 10232237

Geographic coordinates

Geographic coordinates: 23.31816, -25.49668 (WGS84)

Site location context

Political divisions (FIPS codes)

Eastern Cape(province)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country State
South Africa Eastern Cape

Comments on the location information

  • LATITUDE-LONGITUDE IS FOR THE TOWN OF POMFRET.

Commodities

Commodity Importance
Asbestos Primary

Materials information

Materials Type of material
Crocidolite Ore
Chert Gangue
Magnetite Gangue
Riebeckite Gangue
Stilpnomelane Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Iron Formation
    Rock unit name Transvaal Supergroup, Ghaap Group, Calico Formation
    Rock description Transvaal Supergroup, Ghaap Group, Calico Formation

Nearby scientific data

(1) 23.31816, -25.49668
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Economic information

Geologic structures

Type of structure Regional
Structure description Dimoten Syncline
Type of structure Local
Structure description Faults, Folds

Ore body information

  • General form TABULAR
    Length 500M
    Width 150M

Comments on the geologic information

  • THE IRONSTONE CONSISTS OF THIN ALTERNATING BANDS OF CHERT AND MAGNETITE. DEPOSITS GENERALLY FOUND IN MONOCLINAL OR BASINLIKE STRUCTURES ON THE LIMBS OF THE DIMOTEN SYNCLINE.

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    DRYER, C.J.B., AND ROBINSON, H.A., 1981, OCCURRENCE AND EXPLORATION OF AMPHIBOLE ASBESTOS IN SOUTH AFRICA, IN RIORDAN, P.H., ED., GEOLOGY OF ASBESTOS DEPOSITS: NEW YORK, SOCIETY OF MINING ENGINEERS OF THE AMERICAN INSTITUTE OF MINING, METALLURGICAL, AND PETROLEUM ENGINEERS INC., P. 25-44

General comments

Subject category Comment text
Deposit DEPOSIT DIMENSIONS ARE AVERAGES. INDIVIDUAL REEFS CONTAIN AN AVERAGE OF 100,000 T OF IN SITU FIBER AT AN AVERAGE GRADE OF 11%.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1987 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

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