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  3. Mineral Resource Data System (MRDS)

Umvukwes Section

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. Nearby scientific data
  7. Ore body information
  8. Economic information about the deposit and operations
  9. Mining district
  10. Ownership information
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10280428
MAS/MILS ID 7960100052
Record type Site
Current site name Umvukwes Section
Alternate or previous names Umvukwes Area, Royal 3, Mema 1, Sheila's Luck, Regent 7, Umvukwes Chrome, Umvukwes Chrome Mitchell Tribute

Geographic coordinates

Point of reference Claim
Geographic coordinates: 30.70133, -17.16377 (WGS84)
Elevation 1400
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Zimbabwe(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Zimbabwe

Commodities

Commodity Importance
Chromium Critical Primary

Nearby scientific data

Claim (1) 30.70133, -17.16377
ListMap

Economic information

Ore body information

  • Strike N10E
    Dip 25E
    Thickness 0.1M
    Length 12000M
    Width 300M
    Depth to top 150M
    Field Value
    Type of Orebody #1 OTHER
    Shape of Orebody #1 TABULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control IGNEOUS
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 OTHER
    Strike And Dip N10E:25E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. .5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830622

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Mining method Open Stope - Breast Stoping
Milling method Sizing

Mining district

District name Hartley Complex

Ownership information

  • Type Owner-Operator
    Owner Zimbabwe Mining And Smelting Co. (Zimasco)
    Interest 100
    Home office Zimbabwe
    Year 1980

Comments on the reserve resource information

  • 75% PROB. LEVEL IS ESTIMATE OF TONNAGE CONTAINED IN 6 SEAMS ON THE SECTION (NOS. 5,6,7,8,9 AND 10) PROJECTED FOR A DOWN-DIP LENGTH OF 300 METERS. ESTIMATED THICKNESS OF THESE SEAMS ARE .12, .12, .15, .15, .10, AND .12 RESPECTIVELY AND ESTIMATED OUTCROP OF STRIKE LENGTHS FOR THE 6 SEAMS ARE 12,000 M IN LENGTH FOR EACH. 50% PROB. LEVEL IS ESTIMATED ASSUMING DOWN-DIP PROJECTIONS OF 800 M FOR SEAM 6, 1000 M FOR SEAM 7, 1300 M FOR SEAM 8, 1600 M FOR SEAM 9, AND 2000 M FOR SEAM 10. M1C1=M9C4
  • CONTINUOUS PRODUCTION IN SECTION FROM 1919 THRU PRESENT. FOR ANALYSIS: 50,000 MTPY FOR: 10,300 MTPY LUMP AT 48 % CR2O3 & 38,600 MTPY FINES AT 46.2 % CR2O3. ALL PRODUCTS TO KWE KWE SMELTER. GREAT DYKE RESOURCE. SEAMS 5,6,10 = .12 M THICK, SEAM 9= .10 M THICK, SEAMS 7,8 = .15 M THICK.
  • 1/89 INSITU DEMONSTRATED TONNAGE = FOR SEAMS 5, 6 & 7, 8, 9 AND 10 FROM MTOR- OSHANGU PASS NORTH TO VANAD SECTION. 300 M ON-DIP.85 % RECOV.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method BREAST STOPING 10-30
    Percent Waste Rock 0
    Percent Recovery 80
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics ONE SYSTEM OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    1st Condition of Workings OPEN
    Capacity 167
    Capacity Units MT ORE/DAY
    Unit Production Cost 71.34
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 2
    Year of Information 1981

Reference information

Bibliographic references

  • Deposit

    BALLEN, R. COST ESTIMATION FOR SOUTH AFRICAN CHROMITE MINE.

  • Deposit

    1979.

  • Deposit

    BALLEN, R. THE IMPLICATIONS OF SOUTH AFRICA AND ZIMBABWE ON

  • Deposit

    THE AMERICAN FERROCHROME INDUSTRY. PHD THESIS: COLORADO

  • Deposit

    SCHOOL OF MINES. 1981.

  • Deposit

    GOLDER ASSOCIATES. "DEPOSIT PROFILE: SELUKWE PEAK, ZIMBABWE"

  • Deposit

    1980.

  • Deposit

    GOLDER ASSOCIATES. "DEPOSIT PROFILE: SUTTON, VANAD, CAESAR,

  • Deposit

    ZIMBABWE." 1981.

  • Deposit

    GOLDER ASSOCIATES. "DEPOSIT PROFILE: AFRICAN CHROME MINES,

  • Deposit

    LTD. ZIMBABWE." 1981.

  • Deposit

    MINISTRY OF MINES. "CHROMIUM MINING." PUBLICATION NO. 3.

  • Deposit

    PP. 1-3.

  • Deposit

    PERSONAL COMMUNICATION, 1981.

  • Deposit

    WORST, B.S. THE GREAT DYKE OF SOUTHERN RHODESIA. (INCLUDING

  • Deposit

    GEOLOGICAL MAP OF THE DYKE, SHEETS 1-9). PP. 1-235.

Reporter information

Type Date Name Affiliation Comment
Reporter 19-AUG-1992 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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