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Selukwe Peak and Railway Block Mines

Producer in Zimbabwe with commodity Chromium
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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. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Reserves and resources
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10024607
MRDS ID ISM0332
Record type Site
Current site name Selukwe Peak and Railway Block Mines

Geographic coordinates

Geographic coordinates: 30.00137, -19.64692 (WGS84)
Elevation 1433
Relative position CLAIM; 1 KM

Site location context

Political divisions (FIPS codes)

Zimbabwe(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Zimbabwe

Comments on the location information

  • 1:1,000,000 SCALE MAP

Commodities

Commodity Importance
Chromium Critical Primary

Comments on the commodity information

  • PHOSPHATE

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Sebakwain Group; Lower Greenstone Series
    Rock description Sebakwain Group; Lower Greenstone Series
    Stratigraphic age (youngest) Paleoarchean

Nearby scientific data

(1) 30.00137, -19.64692
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Layered Intrusion

Comments on the geologic information

  • FOLDING, FAULTING, WEATHERING; CRET HOLO; CARBONATE-FLUORAPATITE, QUARTZ, ILLITE-MUSCOVITE, GYPSUM, FLUORITE, PYRITE, ORGANIC (CALCITE AND DOLOMITE IN UNWEATHERED SAMPLES); DEPOSITION BY UPWELLING NUTRIENT-LADEN WATERS ON STABLE SHELF. FOLDING AND FAULTING AFTER DEPOSITION MAKES GEOLOGY COMPLICATED AND REDUCES AMOUNT OF MATERIAL AVAILABLE FOR OPEN PIT MINING. MOST OF RESOURCE WILL HAVE TO BE MINED UNDERGROUND. WEATHERING IN HOLOCENE REMOVED CARBONATE, THUS ENRICHING THE PHOSHATE ROCK

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1904
Year of first production 1906
Year of last production 1982

Mining district

District name Selukwe Complex Area (Railway)

Ownership information

  • Type Operator
    Owner Zimbabwe Mining And Smelting Co. (Zimasco)
  • Type Owner
    Owner Union Carbide Corp.

Comments on the production information

  • FROM 1965 TO 1982 PRODUCTION DATA COMBINED WITH IDAHO, UTAH, WYOMING PRODUCTION ESTIMATED AT ABOUT 1 MILLION TPY FROM 1963-1982, ALTHOUGH FIGURES ARE COMBINED WITH IDAHO, WYOMING AND UTAH

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 46.5 wt-pct Chromium Major 1982

Comments on the reserve resource information

  • MORE THAN 5000 FEET BELOW ENTRY LEVEL HYPOTHETICAL TONNAGE TOO DEEP TO BE RR41 CONSIDERED A RESOURCE RR42 INFERRED MARGINAL RESOURCES; RR43 RESERVE BASE AND SUBECONOMIC STRIPPABLE RESOURCES

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (ENVIRONMENT, GOVT. REGULATIONS;). DEVELOPMENT(YES); EXPLORATION(YES);

Reference information

Bibliographic references

  • Deposit

    THOMAS, P., 1982, WRITTEN COMMUN., MAS DATA: DENVER, CO., U.S. BUREAU OF MINES. (RR1, RR2, RR8, RR9, RR10, RR16)

  • Deposit

    COTTERILL, P., 1969, THE CHROMITE DEPOSITS OF SELUKWE, RHODESIA, IN WILSON, H. D. B., ED., MAGMATIC ORE DEPOSITS: ECONOMIC GEOLOGY, MONOGRAPH 4, P. 154-187. (C3, C9, PC2)

  • Deposit

    SKEKARCHI, E., MORGAN, G., CLARKE, P., AND AMBROSIO, S., 1981, ZIMBABWE: U.S. BUREAU OF MINES MINERAL PERSPECTIVES SERIES, AUGUST, 62 P. (C14, PA1, PA8)

  • Deposit

    PETERSON, E. CO., 1982, CHROMIUM, IN U.S. BUREAU OF MINES, MINERALS YEARBOOK 1980, V. I, METALS AND MINERALS: WASHINGTON, D.C., U.S. GOVERNMENT PRINTING OFFICE, P. 189-200. (C12, C13)

  • Deposit

    MORGAN, G. A., 1982, THE MINERAL INDUSTY OF ZIMBABWE (SOUTHERN RHODESIA), IN U.S. BUREAU OF MINES, MINERALS YEARBOOK 1980, V. III, AREA REPORTS-INTERNATIONAL: WASHINGTON, D.C., U.S. GOVERNMENT PRINTING OFFICE, P. 1145-1155. (C12, C13)

  • Deposit

    THAYER, T. P. AND LIPIN, B. R., 1978, A GEOLOGICAL ANALYSIS OF WORLD CHROMITE PRODUCTION FOR THE YEAR 2000 A.D.: AMERICAN INSTITUTE OF MINING, METALLURGICAL AND PETROLEUM ENGINEERS, COUNCIL OF ECONOMICS PROCEEDINGS (FOR MEETING OF FEB. 26-MAR. 2, 1978), P. 143-152.

  • Deposit

    ABRAHAMS, A., 1983, "ZIMBABWE NEEDS MARKET DATA, EXPERIENCED TRADERS," IN AMERICAN METAL MARKET CHROMIUM SUPPLEMENT: AMERICAN METAL MARKET, V. 91, NO. 244 (16 DEC.), P. 13. (C17)

  • Production

    PA1, PA8: RF3, P. 14 PC1, PC8: RF2, P. 155; PC2, PC8: RF3, P. 17; PC3: RF6 AND USBM DATA FOR SUBSEQUENT YEARS

General comments

Subject category Comment text
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). SURFACE, UNDERGROUND

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1982 Lipin Bruce R U.S. Geological Survey

Beyond USGS

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

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