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  3. Mineral Resource Data System (MRDS)

Penge

Producer in 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. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10084816
MRDS ID W700028
Record type Site
Current site name Penge

Geographic coordinates

Geographic coordinates: 30.13473, -24.21335 (WGS84)

Site location context

Political divisions (FIPS codes)

South Africa(country)

Africa(continent)

Land(continent)

Geographic areas

Country
South Africa

Comments on the location information

  • LATITUDE-LONGITUDE IS FOR THE TOWN OF PENGE.

Commodities

Commodity Importance
Asbestos Primary

Materials information

Materials Type of material
Chert Gangue
Magnetite Gangue
Quartz Gangue
Siderite 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, Chuniesport Group
    Rock description Transvaal Supergroup, Chuniesport Group

Nearby scientific data

(1) 30.13473, -24.21335
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Faults, Intense Folding

Ore body information

  • General form TABULAR
    Length 3000M
    Width 1500M

Comments on the geologic information

  • BANDED IRONSTONE CONSISTS OF ALTERNATING LIGHT BANDS OF QUARTZ, CHERT, AND SIDERITE AND DARK BANDS OF MAGNETITE, AMOSITE, AND A SOFT GRAPHITIC MATERIAL. IRONSTONE HOST IS LESS THAN 500 FT THICK AT PENGE.

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No

Ownership information

  • Type Owner
    Owner Griqualand Exploration And Finance Co. Ltd. (Gefco)

Reference information

Bibliographic references

  • Deposit

    HARBEN, P.W., AND BATES, R.L., 1984, ASBESTOS, IN GEOLOGY OF THE NONMETALLICS: NEW YORK, METAL BULLETIN INC., P. 324-335.

  • Deposit

    DREYER, C.J.B., AND ROBINSON, H.A., 1981, OCCURRENCE AND EXPLOITATION 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, P. 25-44.

General comments

Subject category Comment text
Deposit 5 LARGE LENTICULAR LENSES TRENDING EAST-WEST. LENGTH-WIDTH ARE AVERAGES FOR THE 5 LENSES. EACH LENS SHOWS AN AREA OF APPROXIMATELY 14 SQ. KM. AMOSITE IS BLUISH-GRAY CROSS-FIBER UP TO 7" LONG AND RESTRICTED TO DARK LAYERS IN THE IRONSTONE. AMOSITE RATHER THAN CROCIDOLITE FORMED DUE TO A LACK OF SODIUM IN THE HOST ROCK AND THE PRESENCE OF GRAPHITE (WHICH MAINTAINED FE OXIDE IN THE REDUCED STATE).

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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