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Magazine Hill

Past Producer in Midlands, 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 10183555
MAS/MILS ID 7960250027
Record type Site
Current site name Magazine Hill
Alternate or previous names No Alternate Names.

Geographic coordinates

Point of reference Claim
Geographic coordinates: 30.00716, -19.67862 (WGS84)
Elevation 1450
Location accuracy 1000(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
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Unknown

Nearby scientific data

Claim (1) 30.00716, -19.67862
ListMap

Economic information

Ore body information

  • Thickness 7M
    Length 300M
    Width 80M
    Depth to top 104M
    Field Value
    MAS Matrix # 1
    MAS Column # 2
    Type of Orebody #1 OTHER
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control FAULTING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 OTHER
    Type of Wallrock Alter. #2 SILICIFICATION
    Type of Wallrock Alter. #3 CARBONITIZATION
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. .5
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830617
  • Area 500HA
    Field Value
    Total Surface Area (HA) 500
    Date of Last Modification 910418

Comments on the geologic information

  • OTHER TYPE OF ALTERATION IS SERPENTINIZATION,UNSPEC.META. ROCK IS TALC-CARBONATE.

Economic information about the deposit and operations

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

Mining district

District name Selukwe District

Mineral rights holdings

Type of mineral rights Unknown

Ownership information

  • Type Unknown
    Owner Zimbabwe Mining And Smelting Co. (Zimasco)

Comments on the reserve resource information

  • M1C2=M9C4. BECAUSE OF THE LACK OF DETAILED GEOLOGIC DATA ON THE OREBODY OR ZONE OF INTEREST, IT WAS NECESSARY TO CONSTRUCT A "MODEL" OREBODY FOR ANALYSIS OF COSTS. THE MODEL THAT REPRESENTS THE 75% PROBABILITY TONNAGE EXTENDS FOR 80 METERS ALONG DIP AND IS LOCATED AT 200 TO 300 METERS VERTICAL DEPTH. DETAILED INFORMATION WOULD DEFINE THIS MODEL FURTHER.
  • 1/89 INSITU DEMO.TONNAGE = ESTIMATE FOR 2 OREBODIES IN A 300 M X 60 M ORE ZONE AT DEPTH OF ABOUT 150-300 M VERTICAL.100 % REC.
  • FOR ANALYSIS: 27,400 MTPY ROM FOR: 12,300 MTPY LUMP PRODUCTS AND 12,300 MTPY FINES PRODUCTS (ALL AT 48.0 % CR2O3). ALL PRODS. ANALYZED AS CHROMITE MET PRODS. FOR EXPORT IN STUDY (NON-PRODUCING, NO ROOM AT KWE KWE SMELTER). PODIFORM RESOURCE.

Workings at the site

  • Type of workings Underground
    Overall depth 250M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method SUBLEVEL 10-43
    Percent Waste Rock 0
    Percent Recovery 90
    Hardness of Rock HARDROCK WITH LITTLE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING WHEN DRY
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Number of Shafts 4
    1st Condition of Workings UNKNOWN
    Capacity 100
    Capacity Units MT ORE/DAY
    Unit Production Cost 26.15
    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. 1979. 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 COUNTRY

  • 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

    WORLD MINING, MARCH 1981, PG. 46

General comments

Subject category Comment text
Deposit LOCATED 1.5 KM SE OF THE TOWN OF SELUKWE. THERE HAS BEEN LITTLE IF ANY PRODUCTION FROM MAGAZINES HILL PROPERTY OVER THE YEARS. HOWEVER, IN 1981, IT WAS ANNOUNCED THAT A MINING OPERATION WOULD BE BROUGHT INTO PRODUCTION AT MAGAZINE HILL. THERE IS LITTLE INFORMATION AVAILABLE ON THE GEOLOGY OF THE PROPERTY. AS OF 1969, THERE WERE SEVERAL MINOR ORE ZONES KNOWN WITH 9 LENSES AVERAGING 6 METERS WIDE. A RECENT BORE- HOLE AS OF THAT TIME HAD INTERESECTED ORE AT A DEPTH OF ABOUT 213 METERS WHICH GRADED AS 49.58% CR2O3 WITH CR/FE RATIO OF 3.4/1.0/

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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