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Selukwe Peak

Plant in Midlands, Zimbabwe with commodities Aluminum, Calcium, Chromium, Iron, Magnesite, Silica
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Ownership information
  12. Production statistics
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10135433
MAS/MILS ID 7960250055
Record type Site
Current site name Selukwe Peak

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: 30.01356, -19.71912 (WGS84)
Elevation 1350
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Midlands(province)

Zimbabwe(country)

Africa(continent)

Land(continent)

Geographic areas

Country State
Zimbabwe Midlands

Commodities

Commodity Importance
Aluminum Critical Tertiary
Calcium Tertiary
Chromium Critical Primary
Iron Tertiary
Magnesite Tertiary
Silica Tertiary

Materials information

Materials Type of material
Chromite Unknown
Dolomite Unknown
Serpentine Unknown
Talc Unknown

Nearby scientific data

Ore Body (1) 30.01356, -19.71912
ListMap

Economic information

Ore body information

  • Strike N90E
    Dip 80N
    Thickness 15M
    Length 214M
    Width 200M
    Depth to top 405M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 OTHER
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Shape of Orebody #3 PIPELIKE
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control FAULTING
    Secondary Ore Control FOLDING
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 OTHER
    Type of Wallrock Alter. #2 SILICIFICATION
    Type of Wallrock Alter. #3 CARBONITIZATION
    Strike And Dip N90E:80N
    Minimum Depth to Top 0
    Date of Last Modification 830622
  • Area 1000HA
    Field Value
    Total Surface Area (HA) 1000
    Date of Last Modification 910418

Comments on the geologic information

  • TYPE OF OREBODY IS ACTUALLY A PODIFORM. UNSPEC META. ROCK IS TALC CARBONATE.UNSPEC. IGNEOUS ROCK IS DOLERITE OCCURRING AS DIKES.

Economic information about the deposit and operations

Operation type Underground
Development status Plant
Commodity type Both
Significant No
Discovery year 1904
Mining method Open Stope - Sublevel
Year of first production 1940
Plant type Beneficiation (Mill)
Plant subcategory Gravity
Milling method Heavy Media

Mining district

District name Selukwe District

Ownership information

  • Type Owner-Operator
    Owner Zimbabwe Mining And Smelting Co. (Zimasco)
    Interest 100
    Home office Zimbabwe
    Year 1989

Production statistics

  • Year 1975
    Description Lump And Fines(Met. And Refract) 194954 Mt. Conc
  • Year 1976
    Description Lump And Fines (Met. And Refract) 162102 Mt Conc
  • Year 1977
    Description Lump And Fines (Met. And Refract) 127674 Mt Conc
  • Year 1978
    Description Lump And Fines (Met. And Refract) 76052 Mt Conc
  • Year 1979
    Description Lump And Fines (Met And Refract) 92111 Mt Conc

Comments on the reserve resource information

  • 10% OF RESERVE IS REFRACTORY CR2O3 AND 90% IS METALL. CR2O3. OVER THE YEARS, AT LEAST 30 DEFFERENT OREBODIES HAVE BEEN DISCOVERED ON THE SELUKWE PEAK PROPERTY. MINING APPEARS TO HAVE CONCENTRATED MAINLY ON 9 LARGE OREBODIES- 2A, 4A, 8, 4, 14A, 11, 7, 21, AND 16. ALTHOUGH AT LEAST 25 OREBODIES (ELONGATED, LENTICULAR, PIPE-LIKE) OF AN AVERAGE WIDTH OF 24 METERS HAVE BEEN MINED OVER THE YEARS. AN AVERAGE ORE- BODY-WHICH CONSISTS OF ANYWHERE FROM 3 TO 12 SEPARATE LENSES ARRANGED AS A GROUP-WOULD HAVE A STRIKE LENGTH OF 300 M, EXTEND TO 60 M DOWN-DIP AND HAVE A THICKNESS OF 12 METERS. A LARGE OREBODY WOULD HAVE RESPECTIVE DIMENSIONS OF 600 M, 135 M AND 18 METERS. THUS, AN AVERAGE SIZED OREBODY WOULD CONTAIN NEARLY 900,000 MT OF IN-SITU MATERIAL WHILE A LARGE ORE BODY WOULD HAVE A CONTAINED TONNAGE OF 5,800,000 METRIC TONS. THE Q-MAT 1 ESTIMATE FOR 75% PROB.LEVEL. ANALYSIS IS A CONSERVATIVE ESTIMATE OF THE TONNAGE CONTAINED IN ONLY 3 OREBODIES-2A, 7, AND 21. (ALL OF WHICH APPEAR TO BE OPEN AT DEPTH) USING KNOWN HORIZONTAL DIMENSIONS AND PROJECTED FOR A DISTANCE OF 200 METERS ALONG THE DIP DIRECTION, DIMENSIONS USED ARE AS FOLLOWS: NO. 21 - 122M ON STRIKE, 20 M THICKNESS NO. 7 - 320 M ON STRIKE, 10 M THICKNESS; NO. 21- 200 M ON STRIKE, 15 M THICK, THESE THREE OREBODIES SERVE AS NODELS OFR ANALYSIS OF MINING COSTS AND DO NOT IMPLY THAT THESE ARE THE ONLY OREBODIES WHICH CONTAIN RESOURCES AT SELUKWE PEAK. THE TONNAGE SHOULD NOT BE CONSIDERED AS AN ABSOLUTE TONNAGE AVAILABILITY AT SELUKWE PEAK. M1C1=M9C4

Workings at the site

  • Type of workings Underground
    Overall depth 810M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method SUBLEVEL 10-43
    Percent Recovery 90
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 2
    1st Condition of Workings OPEN
    Capacity 633
    Capacity Units MT ORE/DAY
    Unit Production Cost 22.04
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 2
    Year of Information 1981

Reference information

Bibliographic references

  • Deposit

    ALREY, N.M. "A REVIEW OF CHROMITE MINING IN THE GREAT DYKE."

  • Deposit

    CHAMBER OF MINES JOURNAL. JUNE 1975. PP. 35-43.

  • Deposit

    COTTERILL, P. "THE CHROMITE DEPOSITS OF SELUKWE, RHODESIA."

  • Deposit

    ECONOMIC GEOLOGY MONOGRAPH VOL. 4. PP. 154-186.

  • Deposit

    COTTERILL, P. "THE SELUKWE SCHIST BELT AND ITS CHROMITITE

  • Deposit

    DEPOSITS." GEOLOGICAL SOCIETY OF SOUTH AFRICA. VOL. 5.

  • Deposit

    1979. PP. 229-245.

  • Deposit

    STOWE, CLIVE W. "ALPINE-TYPE STRUCTURES IN THE RHODESIAN

  • Deposit

    BASEMENT COMPLEX AT SELUKWE." JOURNAL OF THE GEOLOGICAL

  • Deposit

    SOCIETY. LONDON. VOL. 130. 1974. PP. 411-425.

  • Deposit

    STOWE, C.W. "THE GEOLOGY OF THE COUNTRY SOUTH AND WEST OF

  • Deposit

    SELUKWE." RHODESIA, GEOLOGICAL SURVEY BULLETIN NO. 59.

  • Deposit

    SALISBURY. 1968. PP. 178-180.

  • Deposit

    TINDALE, R. AND M.A. BISCOE. "THE GEOLOGY OF THE COUNTY

  • Deposit

    AROUND GWELO." SOUTHERN RHODESIA, GEOLOGICAL SURVEY

  • Deposit

    BULLETIN NO. 39. 1949. PP. 120-137.

  • Deposit

    WILSON, N.H. "NOTES ON THE MINING INDUSTRY OF SOUTHERN

  • Deposit

    RHODESIA." GEOLOGICAL SURVEY OF SOUTHERN RHODESIA.

  • Deposit

    PP. 55-59.

  • Deposit

    WORST, B.G. "THE GREAT DYKE OF SOUTHERN RHODESIA." SOUTHERN

  • Deposit

    RHODESIA, GEOLOGICAL SURVEY BULLETIN NO. 47. 1960.

  • Deposit

    PP. 82-106, 186-231.

  • Deposit

    GOLDER AND ASSOCIATES, 1981, "DEPOSIT PROFILE - SELUKWE PEAK

  • Deposit

    ZIMBABWE".

  • Deposit

    SILK M H, 1988, "WORLD CHROMITE RESOURCE AND FERROCHROMIUM

  • Deposit

    PRODUCTION", MINTEK SPECIAL PUBL. NO. 11.

  • Deposit

    BOYLE E, SHEILDS D, WAGNER L, 1993, "CHROMIUM AVAILABILITY

  • Deposit

    IN MARKET ECONOMY COUNTRIES AND NETWORK FLOW ANALYSIS

  • Deposit

    OF WORLD CHROMIUM SUPPLY", US DEPT. OF THE INTERIOR,

  • Deposit

    USBM, IC 9337.

Reporter information

Type Date Name Affiliation Comment
Reporter 21-APR-1995 Boyle, Ed U.S. Bureau of Mines

Beyond USGS

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

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