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Konkola

Producer in Copperbelt, Zambia with commodities Copper, Cobalt, Silver, Gold
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Production statistics
  16. Reserves and resources
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10207788
MRDS ID W006893
MAS/MILS ID 7940050014
Record type Deposit
Current site name Konkola
Alternate or previous names Konkola Division, Bancroft Copper-Cobalt Deposit, Bancroft, City of Chililabombwe

Geographic coordinates

Point of reference Pit
Geographic coordinates: 27.7903, -12.3215 (WGS84)
Location accuracy 10(meters)
Relative position Location from Central African Copperbelt SIR.

Site location context

Political divisions (FIPS codes)

Copperbelt(province)

Zambia(country)

Africa(continent)

Land(continent)

Geographic areas

Country State
Zambia Copperbelt

Commodities

Commodity Importance
Copper Primary
Cobalt Critical Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Azurite Ore
Chrysocolla Ore
Covellite Ore
Cuprite Ore
Malachite Ore
Carrollite Ore
Pyrite Ore
Digenite Unknown

Mineral occurrence model information

Model code 202
USGS model code Unassigned
Deposit model name Sediment-hosted Cu, reduced-facies
Mark3 model number 96

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Stratigraphic age (youngest) Middle Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Siltstone
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Arkose
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate
    Rock unit name Roan Series-Arenaceous Beds;Muva Group

Nearby scientific data

Pit (1) 27.7903, -12.3215
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name North limb of Nkana syncline

Ore body information

  • Thickness 11M
    Length 15000M
    Width 3000M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Type of Orebody #2 SHEAR ZONE
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control BEDDING
    Secondary Ore Control OTHER
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Date of Last Modification 820406
  • Field Value
    MAS Matrix # 1
    MAS Column # 3
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Date of Last Modification 820406
  • Area 4500HA
    Field Value
    Total Surface Area (HA) 4500
    Date of Last Modification 910418

Comments on the geologic information

  • Original comments from deleted/merged record: Local: Mine Is Situated On The North Limb Of A Syncline, Known As The 'Nkana North Limb'. Regional: Rocks Of The Lower Roan Series Occur On Either Side Of The So-Called Kafue Anticline, A Broad Structural Ridge Plunging To The Northwest. Bancroft And Baluba Deposits Occurs On The South-West Side Of The Anticline; These Rocks Dip Generally Sw And Contain Many Large Nw Plunging Syclinal Folds. (Andrews, R.W., 1962, See Ref. #1.)

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1924
Mining method Open Stope - Other Open Stope Methods
Year of first production 1957
Milling method Flotation

Comments on exploration

  • 1927 DIREXPL REVEALED EXTENSIVE ORE-BODIES. [Copied from deleted record 10069389 from MRDS W006893].

Mining district

District name Copperbelt Area

Ownership information

  • Type Operator
    Owner Zambia Consolidated Copper Mines, Ltd. (ZCCM)
    Home office Zambia
    Year 1992
  • Type Owner
    Owner Zambia Industrial And Mining Corp., Ltd. (Zimco)
    Interest 60.3
    Home office Zambia
    Year 1992
  • Type Owner
    Owner Zambian Copper Investments, Ltd. (ZCI)
    Interest 27.3
    Home office Bermuda
    Year 1992
  • Type Owner
    Owner Public
    Interest 5.5
    Year 1990

Production statistics

  • Year 1968
    Description Cu Conc. 40% 834000 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 834000mt 40wt-pct
  • Year 1969
    Description Cu Conc. 40% 1969000 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 1969000mt 40wt-pct
  • Year 1979
    Description Cu Conc. 40% 1669000 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 1669000mt 40wt-pct
  • Year 1981
    Description Cu Conc. 46% 1678000 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 1678000mt 46wt-pct
  • Year 1982
    Description Cu Con. 50% 1992000 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 1992000mt 50wt-pct
  • Year 1983
    Description Cu Conc. 44% 1714000 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 1714000mt 44wt-pct
  • Year 1984
    Description Cu Conc. 49% 1549000 Mt Ore/Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Conc. Copper Copper 1549000mt 49wt-pct

Reserves and resources

  • Type In-situ
    Name Musoshi, total endowment = reserves
    Estimate year 2996
    Reserves 111900000mt ore
    Remarks Add Musoshi reserves to Konkola endowment for total of entire deposit.
    Commodity Subtype Grade units Group Importance Year
    Cobalt 2.11 wt-pct Cobalt Primary 2996
  • Type In-situ
    Name Konkola, total endowment
    Estimate year 2010
    Total endowment 636045645mt ore
    Remarks Konkola, total endowment 636,045,645 @ 3.15 plus including Musoshi = 111,900,000 @ 2.11 = 747,945,645
    Commodity Subtype Grade units Group Importance Year
    Cobalt 2.99 wt-pct Cobalt Primary 2010
  • Type In-situ
    Estimate year 1988
    Indicated 49325000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.86 wt-pct Copper Major 1988
    Cobalt Co 0.07 wt-pct Cobalt Minor 1988
  • Type In-situ
    Estimate year 1982
    Indicated 15097000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.86 wt-pct Copper Major 1982
    Cobalt Co 0.07 wt-pct Cobalt Minor 1982
  • Type In-situ
    Estimate year 1992
    Demonstrated 44365000mt ore
    Total resources 44365000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.92 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 297000000mt ore
    Total resources 297000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.8 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 30000000mt ore
    Total resources 30000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.5 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Total resources 51000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.6 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Total resources 3000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.5 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Total resources 381000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.5 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 371365000mt ore
    Total resources 371365000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.54 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1973
    Total resources 105000000000mt ore
    Remarks copied from deleted record. check the magnitude of this value--may be off by 1000X.
    Commodity Subtype Grade units Group Importance Year
    Cobalt Co 0.14 wt-pct Cobalt Primary 1973
    Copper Cu 3.7 wt-pct Copper Primary 1973

Comments on the reserve resource information

  • Q-MATRICES REFLECT OVERALL ORE AVAILABLE FROM THE 3 ORE ZONES, A BREAKDOWN OF THE 3 INDIVIDUAL ORE BODIES IS AVAILABLE AND WAS USED FOR DEVELOPMENT PLAN, BUT IT CANNOT BE SHOWN ON DATA BASE TOTAL RESERVES AS OF 12/31/86; USED IN 1987 EVALUATION.

Workings at the site

  • Type of workings Underground
    Overall depth 800M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method OTHER OPEN STOPE METHODS
    Percent Waste Rock 24
    Percent Recovery 80
    Number of Shafts 4
    1st Condition of Workings OPEN
    Capacity 4290
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1986

Comments on other economic factors

  • THE MILL HAS A COBALT CIRCUIT, BUT IT IS BEING USED TO TREAT ORE.

Reference information

Bibliographic references

  • Production

    TER BRUGGEN, J. W., INTRODUCTION INTO MINING AND METALLURGY ON THE ZAMBIAN COPPERBELT. GEOLOGIE EN MIJNBOUW, V.51, 1972, P. 361-370.

  • Deposit

    DE KUN, N., THE MINERAL RESOURCES OF AFRICA. ELSEVIER, AMSTERDAM, 1965, P. 130-136, 350-356, 365-369.

  • Deposit

    DE VLETTER, D.R., DIJKSTRA, S., AND TER BRUGGEN, J.W. "ZAMBIA ISSUE,"GEOLOGIE EN MIJNBOUW. VOL. 51, NO.3, MAY-JUNE 1972, P. 247-468.

  • Deposit

    FLEISCHER, V.D., GARLICK, W.G., AND HALDANE, R. "GEOLOGY OF THE ZAMBIAN COPPERBELT," HANDBOOK OF STRATA-BOUND AND STRATIFORM ORE DEPOSITS. CHAPTER 6. 1976. PP. 224-349.

  • Reserve-Resource

    ZAMBIA CONSOLIDATED COPPER MINES LTD., 1992 ANNUAL REPORT, P. 51,53.

  • Deposit

    ANDREWS, R.W., 1962, COBALT: OVERSEAS GEOLOGICAL SURVEYS, MINERAL RESOURCES DIVISION, LONDON, HER MAJESTY'S STATIONERY OFFICE, P. 71-.

  • Deposit

    MENDELSOHN, F. (ED.), THE GEOLOGY OF THE NORTHERN RHODESIAN COPPERBELT. MACDONALD AND CO., LONDON, 1961, 523 P.

  • Deposit

    MENDLESOHN, E., 1961. THE GEOLOGY OF THE NORTHERN RHODESIAN COPPERBELT, CHAPTER 9, P. 214-275.

  • Reserve-Resource

    ZAMBIA CONSOLIDATED COPPER MINES LTD., 1988 ANNUAL REPORT, P. 43.

  • Deposit

    NCHANGA CONSOLIDATED COPPER MINES, ANNUAL REPORT, 1976, 1978.

  • Deposit

    NCHANGA CONSOLIDATED COPPER MINES LIMITED ANNUAL REPORT 1979 "ZAMBIA." ENTINEERING AND MINING JOURNAL. NOVEMBER 1979, P. 146-188.

  • Reserve-Resource

    ZAMBIA CONSOLIDATED COPPER MINES LTD., 1982 ANNUAL REPORT.

  • Workings

    RIJKEN, J. H. A., AND CLUTTEN, J. M., THE WATER PROBLEM IN RELATION TO MINING AT KONKOLA DIVISION, NCHANGA CONSOLIDATED COPPER MINES LIMITED. GEOLOGIE EN MIJNBOUW V.51, 1972, P. 399-408.

  • Deposit

    PELLETIER, R. A., MINERAL RESOURCES OF SOUTH-CENTERAL AFRICA OXFORD UNIV. PRESS, CAPETOWN, 1964, P. 365-369.

  • Deposit

    ZAMBIA MINING YEARBOOK 1978. PUBLISHED BY THE COPPER INDUSTRY SERVICE BUREAU.

  • Deposit

    ZIMCO MANAGEMENT DIARY-1979. PUBLISHED BY ZIMCO INFORMATION AND PUBLICITY UNIT.

  • Deposit

    AME MINING WEEKLY, 6/10/94, P. 2, 3.

  • Deposit

    METAL BULLETIN MONTHLY, 8/92, P. 49.

  • Deposit

    METAL BULLETIN, 11/4/93, P. 5.

  • Deposit

    METALS WEEK FOCUS, 4/94, P. 15.

  • Deposit

    METALS WEEK, 4/25/94, P. 5.

  • Deposit

    MINING MAGAZINE, 3/91, P. 180.

  • Deposit

    MINING JOURNAL, 2/18/94, P. 121.

  • Deposit

    NORTHERN MINER, 2/11/91, P. 18.

  • Deposit

    Freeman, P.V., 1988, Description of mineral deposits on the Copperbelt (and Kabwe, Nampundwe), unpublished report, p. 5, 17, 21, 38.

  • Deposit

    Annels, A.E., 1989, Ore genesis in the Zambian Copperbelt with particular reference to the northern sector of the Chambishi Basin, in Boyle, R.W., Brown, A.C., Jefferson, C.W., Jowett, E.C., and Kirkham, R.V. eds., Sediment-hosted stratiform copper deposits: Geological Association of Canada Special Paper 36. p. 427-452.

  • Deposit

    Fleischer, V.D., Garlick, W.D., and Haldane, R., 1976, Geology of the Zambian Copperbelt, in Wolf, K.H., ed., Handbook of Strata-bound and Stratiform Ore Deposits, v. 6, Chapter 6, p. 223-352.

  • Deposit

    Kirkham, R.V, Carriere, J.J., Laramee, R.M., and Garson, D.F., 1994, Global distribution of sediment-hosted stratiform copper deposits and occurrences: Geological Survey of Canada Open File 2915b, 256 p.

  • Deposit

    Fleischer, V.D., Garlick, W.D., and Haldane, R., 1976, Geology of the Zambian Copperbelt, in Wolf, K.H., ed., Handbook of Strata-bound and Stratiform Ore Deposits, v. 6, Chapter 6, p. 223-352.

  • Deposit

    Selley and others, 2005, A new look at the geology of the Zambian Copperbelt: Economic Geology 100th Anniversary Volume, p. 965-1000.

  • Deposit

    Simposya and Hart, 2008, Technical Report on the mineral resources for the Konkola North Copper Project, Chililabombwe, Zambia, Teal Exploration and Mining Inc., 43-101, 78 p. March 2008. [available from sedar.com, TEAL Exploration & Mining Incorporated, May 22, 2008, Technical Report (NI 43-101)]

  • Deposit

    African Rainbow Minerals (ARM) 2008 Annual Report, p. 103 [http://www.arm.co.za/im/files/annual/2008/files/ARM_AR2008.pdf] accessed 5/25/10, p. 103.

  • Deposit

    Konkola Copper Mines, Plc. [www.KCM.co.zm] [http://www.kcm.co.zm/konkola.php]

  • Deposit

    Faurie, Jonathan, 2007, Canadian company revises categories at Konkola North (dated July 27, 2007): accessed May 23, 2010, at http://www.miningweekly.com/article/canadian-company-revises-categories-at-konkola-north-2007-07-27.

  • Deposit

    Portergeo.com.au website. Konkola, Kirilabombwe, Musoshi. [http://www.portergeo.com.au/database/mineinfo.asp?mineid=mn012 last accessed 7/1/10]

  • Deposit

    Brook Hunt & Assoc., 1982, Zaire and Zambia--A visit report, 204 p. [unpublished report in former USBM file room]

  • Deposit

    African Rainbow Minerals (ARM) 2008 Annual Report, p. 103 [http://www.arm.co.za/im/files/annual/2008/files/ARM_AR2008.pdf] accessed 5/25/10, p. 103.

  • Deposit

    African Rainbow Minerals (ARM) 2009 Annual Report (for Konkola NORTH) [http://www.arm.co.za/im/files/annual/2009/pdf/full.pdf] accessed 5/25/10.

  • Deposit

    Vedanta Resources 2009 Annual Report, p. 118. [http://ar2009.vedantaresources.com/pdf/AR2009%20Final.pdf accessed 5/27/10]

  • Deposit

    Konkola Copper Mines, Plc. [www.KCM.co.zm] [http://www.kcm.co.zm/konkola.php]

  • Deposit

    Bennett, Julian, Hermann, Jurgen, and Warwick, John, 2008, KCM Valuation, Prepared for ZCI Holdings SA and Vedanta Resources Plc by N.M. Rothschild & Sons, 15 January, 2008 [revised April 2009], 228 p.: accessed at www.zci.lu/KCM%20Valuation%20Report.pdf.

  • Deposit

    Jobin-Bevans, S., Lotriet, M.P., Heili, C., Meintjes, A., and Naismith, A., 2006, Technical Report for the Kamoto Copper Co. Kolwezi, Katanga Province, DRC, prepared for Katanga Mining Ltd. by McIntosh RSV LLC. [Available from sedar.com, Katanga Mining Limited, May 23, 2006, Technical Report(s)] [X:/DRC/References/By RefNo/RefNo_515.pdf]

  • Deposit

    Reeve, W.H., 1963, The geology and mineral resources of Northern Rhodesia: N. Rhodesia Geological Survey Bull. 3, vol. 1.

  • Deposit

    infomine.com website. Konkola [http://www.infomine.com/index/properties/KONKOLA.html, last accessed 7/1/10. Note that information on this property from this service is by paid subscription only.]

  • Deposit

    ACP Mining Data Bank [Secretariat of the African and Caribbean and Pacific Group of States Group], undated, http://mines.acp.int/html/mine_ZMB-00070_en.html and http://mines.acp.int/html/mine_ZMB-01272_en.html.

  • Deposit

    Vedanta Resources, 2005, Annual Report 2005: Vedanta Web page accessed at http://www.vedantaresources.com/uploads/annual20report202005.pdf.

  • Deposit

    Kirkham, Rodney, and Broughton, David, 2005, Appendix, Supplement to the sediment-hosted stratiform copper ore system, Economic Geology 100th anniversary volume, 1905-2005, Society of Economic Geologists, Littleton, CO, United States, pp. 609-642.

  • Deposit

    Brook Hunt & Associates, 1982, Zambia and Zaire--A Site Visit, unpublished report in USBM files, 204 p. [Note that as of May, 2012, this report has been removed from the former, now dismantled, USBM fileroom and donated to the USGS library in Denver. It is unpublished and replacement copies are unobtainable.]

Comments on the references

  • Note that information on this property from www.infomine.com is by paid subscription only as of 7/1/10. No information from this source was used in this record. The reference is given for others who may wish to subscribe to the service, and to show that we attempted to consult this (partly) publicly available database.

General comments

Subject category Comment text
Deposit THERE ARE THREE ORE BODIES MINED BY THIS DIVISION. THEY ARE SEPARATED BY DISTANCES UP TO 5 KM. ALL MINERALIZATION IS WITHIN THE SAME HORIZON. THE MINES ARE EXTREMELY WET WITH A PUMPING RATE OF 75 MILLION GALLONS/DAY(1970)-INSTALLED PUMPING CAPACITY FOR 1972 WAS TO BE 600,000 CU M/DAY. THE I SET COSTS ARE BROKEN DOWN FUTHER AS FOLLOWS: MINING $19.88 FOR THE I-SET THE GENERAL COST WAS SPLIT MILLING 3.94 1/2 AND ADDED TO MINE AND MILL. THE GENERAL 3.90 REFING COST WAS ADDED TO SMELTING FOR SMELTER 10.51 GENERAL SMELT/REFINE CUSTOM CHARGE. REFINING 2.20 $40.43 THERE ARE 2 PRODUCTION SHAFTS(#1-SOUTH OREBODY AND #3-NORTH OREBODY. GEOMETRY, LITHOLOGY, AND MINERALS DATA COVER BOTH Q-MATRICES A COBALT RICH ZONE WAS FOUND IN THE NO.1 SHAFT IN 1978/1979 BETWEEN THE 2200 AND 2400 LEVELS BUT GRADES AND OTHER DATA ARE NOT AVAILABLE AT THE TIME OF THIS STUDY. THEREFORE, ECONOMICS OF THIS ZONE ARE NOT ADDRESED IN THIS STUDDY. FOR THIS STUDY IT HAS BEEN ASSUMED THAT A NEW MILL WILL BE BUILT WHEN NO.2 OREBODY OPENS (2631-2634).
Deposit Reduced facies sed-hosted copper, in shale.

Reporter information

Type Date Name Affiliation Comment
Reporter 1997-03-10 Porter, Kenneth E. U.S. Bureau of Mines
Reporter 1975-06-01 Shaffer, Glenn L. U.S. Geological Survey 10069389 (W006893) has been merged and deleted.
Editor 2009-10-08 Wilson, Anna B. U.S. Geological Survey merged data from 10069389 (W006893) and deleted that record. revised 6/1/10

Beyond USGS

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

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