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  3. Mineral Resource Data System (MRDS)

Netherburn Mine

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. Production statistics
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10106760
MRDS ID ISM0017
Record type Site
Current site name Netherburn Mine

Geographic coordinates

Geographic coordinates: 30.18468, -19.26361 (WGS84)
Elevation 1494
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

  • NETHERBURN FARM, 5 KM N OF LALAPANSI AND S OF WHERE UMVUMA-QUEQUE RD. CROSSES THE GREAT DYKE
  • LAT. AND LONG. OF SHIMOGA DISTRICT

Commodities

Commodity Importance
Chromium Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Rock unit name Hartley Complex
    Rock description Hartley Complex

Nearby scientific data

(1) 30.18468, -19.26361
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Layered Intrusion

Comments on the geologic information

  • MAJOR FAULTS, GRABEN FORMATION; ARCH; SR/SR: 2532 +/- 89 MA; CRMT + FRSR + ENST/BRNZ + FE OXIDES; SRPN + CRSL
  • ; PRLS + CPML + MNGN + BRUN; THE MN OXIDE BODIES OCCUR IN THE RANIBENNUR-DANDELI GROUP, AND THEY ARE CONFORMABLY INTERBANDED AND CO-FOLDED WITH CHERT.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1927
Year of last production 1982

Mining district

District name Great Dyke

Ownership information

  • Type Owner-Operator
    Owner C. O. Maclaren
    First year 1941

Production statistics

  • Year 1957
    Material ORE CR
    Accuracy Accurate
    Description Ap_Grade: ^48% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Cr2O3 Ore Chromium Chromium 48wt-pct

Comments on the production information

  • UNKNOWN UNKNOWNMINING LIMITED TO UPPER SEAMS.

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 46.9 wt-pct Chromium Major 1982

Comments on the reserve resource information

  • RR1: DEMONSTRATED RESOURCES; CALCULATION BASED ON IN-SITU TONNAGE TO DEPTH OF 300 M ON INCLINE FOR SEAMS THAT OUTCROP OR ARE CLOSE TO SURFACE.
  • RR25-RR28: INDICATED AND INFERRED RESERVES FOR KARNATAKA STATE.
  • RR9: IDENTIFIED RESOURCES; CALCULATION INCLUDES ALL MINERALIZED SEAMS TO DEPTH OF 1000 M ON INCLINE.

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. ().
  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). 30-40% MN

Reference information

Bibliographic references

  • Deposit

    WORST, B. G., 1960, THE GREAT DYKE OF SOUTHERN RHODESIA: SOUTHERN RHODESIA GEOLOGICAL SURVEY BULLETIN 47, 234 P. (PA1, PA2, PA8)

  • Deposit

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

  • Production

    PA1, PA2: RF1, P. 215

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
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.).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1982 Lipin, Bruce R. U.S. Geological Survey
Updater 01-SEP-1983 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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