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  3. Mineral Resource Data System (MRDS)

Mc Ggowan

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. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10207738
MAS/MILS ID 7960100056
Record type Site
Current site name Mc Ggowan
Alternate or previous names Mcgowan

Geographic coordinates

Point of reference Claim
Geographic coordinates: 30.55134, -17.74704 (WGS84)
Elevation 1400
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Zimbabwe(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Zimbabwe

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown
Olivine Unknown
Pyroxene Unknown

Nearby scientific data

Claim (1) 30.55134, -17.74704
ListMap

Economic information

Ore body information

  • Strike N10E
    Dip 20W
    Thickness 0.3M
    Length 8000M
    Width 300M
    Depth to top 50M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    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. SLIGHT
    Type of Wallrock Alter. #1 OTHER
    Strike And Dip N10E:20W
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. .5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830627

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 Gravity

Mining district

District name Hartley Complex

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Owner-Operator
    Owner Rhoswa Mining And Development
    Interest 100
    Home office Zimbabwe
    Year 1981

Comments on the reserve resource information

  • SECTION HAS PRODUCED SINCE 1957. FOR ANALYSIS: 15,000 MTPY ROM FOR: 6,440 MTPY LUMP AT 46.5-49.0 % CR2O3 AND 6,300 MTPY CONC. AT 48.5 % CR2O3. ALL PRODUCTS TO KWE KWE SMELTER. GREAT DYKE RESOURCE. SEAMS 1,2,4 OUTCROP ON SECTION.
  • 75% PROB. LEVEL IS ESTIMATE OF TONNAGE CONTAINED IN 3 SEAMS (NOS.1,2, AND 5) OUTCROPPING ON THE SECTION, ASSUMING EXTENSIONS ON-DIP OF 300 M (ABOUT 125 M VERT. DEPTH). ESTIMATED THICKNESSES OF THE SEAMS ARE .23,.35, AND .12 M RESPECTIVELY. ESTIMATED STRIKE LENGTHS OVER THE SECTION ARE 8000 METERS FOR ALL THREE SEAMS. 50 PERCENT PROB. LEVEL ASSUME DOWN-DIP EXTENSINS OF 800 METERS FOR SEAM 1, 1000 M FOR SEAM 2, 2500 METERS FOR SEAM 5 AND 2000 METERS FOR SEAMS 6,7,8,9,10, AND 11.
  • 1/89 INSITU DEMO.TONNAGE = SEAMS 2 & 4 ONLY FOR 300 M ON-DIP. 85 % RECOVERY.

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method RESUING 10-61
    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 50
    Capacity Units MT ORE/DAY
    Unit Production Cost 49.15
    Units of Production $/MT ORE
    Operating Days per Year 300
    Operating Shifts per Day 2
    Year of Information 1981

Comments on other economic factors

  • TRANSPORTATION COST FROM MILL TO SMELTER IS $9.70/MT MILL OUTPUT.

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.

General comments

Subject category Comment text
Deposit INFORMATION FROM 1981 INDICATES THAT THERE WAS PRODUC- TION FROM OPERATIONS IN THE MCGOWAN AREA. THIS ANALYSIS TREATS A SINGLE SECTION OF THE GREAT DYKE-THE "MCGOWAN SECTION"- AS ONE MINING UNIT. IN REALITY, MORE THAN ONE COMPANY MAY HOLD LEASES OVER THE SECTION DESCRIBED AND MORE THAN ONE COMPANY COULD BE PRODUCING SIMULTANEOUSLY FROM THE SECTION. TO ANALYZE THE GREAT DYKE FOR AVAILABILITY IT WAS NECESSARY TO ADDRESS THE SITUATION IN A LOGICAL, COMPART- MENTALIZED FORMAT. HENCE, THE "MCGOWAN SECTION" REFERS TO AN 8 KM SECTION COVERING THE EAST LIMB OF THE GREAT DYKE SYNCLINE FROM THE HUNYANI RIDER NORTHWARDS (IN THE VICINITY OF THE OLD RHOCHROME OPERATION.)

Reporter information

Type Date Name Affiliation Comment
Reporter 19-AUG-92 Eastern Field Operations Center (EFOC) 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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