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Nchanga Division

Producer in Copperbelt, Zambia with commodities Copper, Cobalt
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Mineral rights holdings
  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 10159181
MAS/MILS ID 7940050017
Record type Deposit
Current site name Nchanga Division
Alternate or previous names Chingola Div.,Nchanga Cons., River Lode Open Pit, Nchanga, N'Changa, Ncaanga (misspelling?), Nchanga Cobalt, Chingola

Geographic coordinates

Point of reference Geographic coordinates: Elevation UTM Precision Relative position Point location
Ore Body 27.85, -12.5 (WGS84) 1300 500
(click for info)
Pit 27.86562, -12.50646 (WGS84) 10 Located near center of Open Pit based on images in Google Earth and Microsoft maps.
Main Entrance 27.8549, -12.5248 (WGS84) 1000 Nchanga Underground. Location from Vanbrusse's Google Earth data.
Pit 27.862, -12.62222 (WGS84) 10 Mimbula Pit 1 (from Google Earth and vanbrussel)
Pit 27.8613, -12.63 (WGS84) 10 Mimbula Pit 2 from Google Earth and vanbrussel.

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 Secondary

Materials information

Materials Type of material
Bornite Ore
Carrollite Ore
Chalcocite Ore
Chalcopyrite Ore
Chrysocolla Ore
Cuprite Ore
Digenite Ore
Malachite Ore
Quartz Gangue
Pyrite Unknown

Mineral occurrence model information

Model code 202
USGS model code Unassigned
Deposit model name Sediment-hosted Cu, reduced-facies
Mark3 model number 96
Model code 200
USGS model code Unassigned
Deposit model name Sediment-hosted Cu, Revett
Mark3 model number 64

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock
    Rock unit name Lower Bwan M'Kubwa Series

Nearby scientific data

Ore Body (1) 27.85, -12.5
ListMap
Pit (2) 27.86562, -12.50646
ListMap
Main Entrance (3) 27.8549, -12.5248
ListMap
Pit (4) 27.862, -12.62222
ListMap
Pit (5) 27.8613, -12.63
ListMap

Economic information

Ore body information

  • Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Date of Last Modification 830712
  • Field Value
    MAS Matrix # 3
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin METAMORPHISM
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Date of Last Modification 830712
  • Thickness 5.8M
    Length 1210M
    Width 580M
    Depth to top 100M
    Field Value
    MAS Matrix # 5
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 DOMELIKE
    Type of Orebody #2 STOCKWORK
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin MAGMATIC DIFFER
    Primary Ore Control FOLDING
    Secondary Ore Control FRACTURING
    Avg. Thick. Unconsol. Mat. 100
    Date of Last Modification 830712
  • Thickness 5.8M
    Length 1210M
    Width 580M
    Area 2000HA
    Depth to top 100M
    Field Value
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 DOMELIKE
    Type of Orebody #2 STOCKWORK
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin MAGMATIC DIFFER
    Primary Ore Control FOLDING
    Secondary Ore Control FRACTURING
    Degree of Wallrock Alter. SLIGHT
    Type of Wallrock Alter. #1 OTHER
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 100
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 2000
    Date of Last Modification 830712

Comments on the geologic information

  • M-MAT 5 REFERS TO FITULA AND BLANK M-MAT REFERS TO CHINOLA AND NCHANGA.
  • G-MAT 5 RELATES TO FITULA MINE.WALL ROCK ALTERATION INVOLVES LATERITE. ALL BLANK G-MAT REFERS TO BOTH UNDERGOUND AND SURFACE ASPECTS OF THE CHINGOLA, AND NCHANGA MINES.
  • L-MAT 5 REFERS TO FITULA MINE AND BLANK L-MAT REFERS TO NCHANGA AND CHINOLA.
  • LOWER BWANA M'KUBWA SERIES EQUALS ROAN SERIES [copied from deleted record 10100265].

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Producer
Commodity type Metallic
Significant Yes
Discovery year 1923
Mining method Open Stope - Room and Pillar
Year of first production 1939
Plant type Beneficiation (Mill)
Plant subcategory Flotation
Milling method Flotation

Mining district

District name Copperbelt Area
District name Nchanga District, Roan Antelope

Mineral rights holdings

Type of mineral rights Unknown

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 Rst International Inc.
    Interest 6.9
    Home office South Africa
    Year 1992
  • Type Owner
    Owner Public
    Interest 5.5
    Home office South Africa
    Year 1992

Production statistics

  • Year 1965
    Description Cu Orf At 3.087% In Situ 4500000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 4500000mt 3wt-pct
  • Year 1968
    Description Cu Grade At 3.08% 8000000 Mt Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 8000000mt 3wt-pct
  • Year 1972
    Description Cu Grade At 3.08% 8300000 Mt Ore/Yr
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 8300000mt 3wt-pct
  • Year 1976
    Description 8500000 Mt Ore
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 8500000mt
  • Year 1978
    Material Ore
    Ore mined 9099999mt
    Description 9099999 Mt Ore
  • Year 1980
    Material Ore
    Ore mined 9345100mt
    Description 9345100 Mt Ore
  • Year 1981
    Description Production Of Ore 9216000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 9216000mt
  • Year 1982
    Description Production Of Ore 9927000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 9927000mt
  • Year 1983
    Description Production Of Ore 9929000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 9929000mt
  • Year 1984
    Description Production Of Ore 10263000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 1026300mt
  • Year 1985
    Description Production Of Ore 9373000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 9373000mt
  • Year 1986
    Description Production Of Ore 9300000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 9300000mt
  • Year 1987
    Description Production Of Ore 9300000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 9300000mt
  • Year 1988
    Description Production Of Ore 9400000 Metric Tons Of Ore.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Copper Copper 9400000mt

Comments on the production information

  • THE HISTORY DATA SET IS A COMPILED REVIEW OF THE HISTORIES OF THE FITULA, NCHANGA AND CHINGOLA CU MINES.

Reserves and resources

  • Type In-situ
    Name Mimbula Pit 1, inferred
    Estimate year 2005
    Inferred 25300000mt
    Total endowment 25300000mt
    Remarks Mimbula Pit 1 inferred 25.3Mt@1.16% Cu (KCM Valuation, p. 57).
    Commodity Subtype Grade units Group Importance Year
    Copper 1.16 wt-pct Copper Primary 2005
  • Type In-situ
    Estimate year 1988
    Indicated 121372mt ore
    Demonstrated 121372mt ore
    Total resources 121372mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.67 wt-pct Copper Major 1988
  • Type In-situ
    Estimate year 1988
    Indicated 15661mt ore
    Demonstrated 15661mt ore
    Total resources 15661mt ore
    Commodity Subtype Grade units Group Importance Year
    Cobalt Co 0.54 wt-pct Cobalt Minor 1988
    Copper Cu 1.5 wt-pct Copper Major 1988
  • Type In-situ
    Estimate year 1982
    Indicated 136629mt ore
    Demonstrated 136629mt ore
    Total resources 136629mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.57 wt-pct Copper Major 1982
  • Type In-situ
    Estimate year 1992
    Demonstrated 91632000mt ore
    Total resources 91632000mt ore
    Commodity Subtype Grade units Group Importance Year
    Cobalt Co 0.08 wt-pct Cobalt Minor 1992
    Copper Cu 3.75 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 77967000mt ore
    Total resources 77967000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 4.14 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 115700000mt ore
    Total resources 115700000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.95 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Total resources 178000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 1.2 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Total resources 371667000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 2.36 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 193667000mt ore
    Total resources 193667000mt ore
    Commodity Subtype Grade units Group Importance Year
    Copper Cu 3.43 wt-pct Copper Major 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 13665000mt
    Remarks Copied from merged/deleted record 10158996.
    Commodity Subtype Grade units Group Importance Year
    Cobalt 0.55 wt-pct Cobalt Secondary 1992
    Copper 1.5 wt-pct Copper Primary 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 14300000mt
    Remarks Copied from merged/deleted record 10158996.
    Commodity Subtype Grade units Group Importance Year
    Cobalt 0.31 wt-pct Cobalt Secondary 1992
    Copper 1.5 wt-pct Copper Primary 1992
  • Type In-situ
    Estimate year 1992
    Demonstrated 27965000mt
    Remarks Copied from merged/deleted record 10158996.
    Commodity Subtype Grade units Group Importance Year
    Cobalt 0.43 wt-pct Cobalt Secondary 1992
    Copper 1.5 wt-pct Copper Primary 1992
  • Type In-situ
    Name Fitula Pit, total endowment
    Estimate year 1986
    Total endowment 4500000mt
    Remarks Fitula Pit endowment is 4.5Mt @ 5% Cu (Kirkham and others, 1994).
    Commodity Subtype Grade units Group Importance Year
    Copper 5 wt-pct Copper Primary 1986
  • Type In-situ
    Name Mimbula 2 Pit, inferred
    Estimate year 2008
    Inferred 21550000mt
    Total endowment 21550000mt
    Remarks 21.55Mt@ 1.24% cu (KCM valuation, p. 57)
    Commodity Subtype Grade units Group Importance Year
    Copper 1.24 wt-pct Copper Primary 2008

Comments on the reserve resource information

  • Q-MATRIX 1 REFERS TO NCHaNGA PIT (1980-1985) Q-MATRIX 2 REFERS TO NCHaNGA PIT EXPANSION (1986-2005) Q-MAT3 REFERS TO CHINGOLA PIT (1980-1985) Q-MAT4 REFERS TO CHINGOLA PIT EXPANSION (1986-2005) Q-MAT5 REFERS TO FITULA (1980-1985) Q-MAT6 REFERS TO UG CU ORE (1980-2005) Q-MAT7 REFERS TO UG CU/CO ORE (1983-1997) Q-MAT8 REFERS TO SURFACE CU/CO ORE (1983-1997) M1C1 + M2C1 + M3C1 + M4C1 + M5C1 + M6C1 = M9C4.
  • ZCCM, 1991 AR, P42,43, (3/31/91) ORE RESERVES: 104,254,000 MT @ 3.68% CU, .07% CO # MINERAL RESOURCE: 130,000,000 MT @ 2.78% CU, .03% CO ## TOTAL DEMO RES.: 234,254,000 MT @ 3.18% CU, .05% CO # 13,333,000 MT COBALT ORE @ .56% CO INCLUDED ## 14,300,000 MT COBALT ORE @ .31% CO INCLUDED COBALT ORE NOT INCLUDED WITH COPPER RESOURCE BUT CAN BE FOUND UNDER SEQ. NO. 7940050010-NCHANGA COBALT
  • Total Endowment: Fitula Pit 4,500,000 @ 5% Cu = 225,000 tract L Chingola 141,390,000 @ 1.47 = 2,078,433 tract J Nchanga 434,630,000 @ 3.20 = 13,908,160 tract J Mimbula 46,850,000 @ 1.20 = 562,200 tract L

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method BENCH (BERM)
    Percent Waste Rock 88.9
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARDPAN
    Tertiary Material Cover M-HARD ROCKS
    Avg. Bench Height (meters) 11
    Capacity 15119
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.97
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ACTUAL
    Mining Method BENCH (BERM)
    Percent Waste Rock 85.7
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARDPAN
    Tertiary Material Cover M-HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 45
    Capacity 2452
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.97
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 3
    Status of Mining Method ACTUAL
    Mining Method BENCH (BERM)
    Percent Waste Rock 90.9
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARDPAN
    Tertiary Material Cover M-HARD ROCKS
    Capacity 2006
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.97
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 4
    Status of Mining Method ESTIMATE
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARDPAN
    Tertiary Material Cover M-HARD ROCKS
    Avg. Bench Height (meters) 11
    Capacity 18954
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.97
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 5
    Status of Mining Method ESTIMATE
    Mining Method BENCH (BERM)
    Percent Waste Rock 85.7
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARDPAN
    Tertiary Material Cover M-HARD ROCKS
    Avg. Bench Height (meters) 12
    Max. Pit Slope (degrees) 45
    Capacity 2773
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.97
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 6
    Status of Mining Method ESTIMATE
    Mining Method BENCH (BERM)
    Percent Waste Rock 88.9
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARDPAN
    Tertiary Material Cover M-HARD ROCKS
    Capacity 5928
    Capacity Units MT ORE/DAY
    Unit Production Cost 9.97
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ACTUAL
    Mining Method CAVING METHODS
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    1st Condition of Workings OPEN
    Capacity 7555
    Capacity Units MT ORE/DAY
    Unit Production Cost 12.24
    Units of Production $/MT ORE
    Operating Days per Year 330
    Operating Shifts per Day 3
    Year of Information 1980
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ACTUAL
    Mining Method CAVING METHODS
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Capacity 419
    Capacity Units MT ORE/DAY
    Operating Days per Year 330
    Operating Shifts per Day 3
    Year of Information 1981

Comments on other economic factors

  • OXIDES UNDERGO CRUSHING AT THE EAST MILL AND ARE PUMPED TO WEST MILL FOR FLOTATION AND LEACHING. UNDERGROUND ORE IN THE CHINGOLA DIVISION IS HANDLED BY THE WEST MILL AND SURFACE ORE IS HANDLED BY THE EAST MILL. THERE ARE TWO LEACH PLANTS. ONE IS HIGH GRADE FOR OXIDE FROM ORES, THE SECOND IS FOR TREATING TAILING. AMOUNT OF TAILS (10,000,000 MTPY) AND AMOUNT OF DUMP MATERIAL (1,088,000 MTPY) CONSTITUTE FEED TO SX/EW PLANT.
  • THERE ARE TWO DIFFERENT ORE BODIES BEING MINED UNDERGROUND. ALSO TWO DIFFERENT METHODS ARE IN USE. THE COST IS AN AVERAGE FOR BOTH AND THE CAPACITY IS A COMBINATION OF BOTH.

Reference information

Bibliographic references

  • Deposit

    JACKSON, G.C.A., 1932, THE ORES OF THE NCHANGA MINE AND EXTENSIONS, NORTHERN RHODESIA: ECON. GEOL., V. 27, P. 247-280.

  • Production

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

  • Deposit

    JACKSON, G.C.A., 1932, THE GEOLOGY OF THE NCHANGA DISTRICT, NORTHERN RHODESIA: GEOL. SOC. LONDON QUART. JOUR., V. 88, P. 443-515. [unable to verify this reference. Corrected spelling from Nanchanga to Nchanga].

  • Deposit

    Jackson, G.C.A., 1933, Outline of the geological history of the N'Changa District, Northern Rhodesia: Geological Magazine, vol.70, no.824, pp.49-57, Feb 1933

  • Production

    NCHANGA CONSOLIDATED COPPER MINES LTD. ANNUAL REPORTS 1976-1977.

  • Deposit

    Reeve, W.H., 1962, The geology and mineral resources of northern Rhodesia: Northern Rhodesia Geological Survey Bulletin No. 3, v. 1, p. 56, and v. 2, map IV, #33.

  • Deposit

    Freeman, P.V., 1988, Description of mineral deposits on the Copperbelt (and Kabwe, Nampundwe), unpublished report, p. 17, 29.

  • Production

    STAFF, MINING, MAGAZINE, INTEGRATED DEVELOPMENT WILL BOOST ZAMBIA'S COPPER DEVELOPMENT. FEBRUARY 1974 P100-103.

  • 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.

  • Production

    ZAMBIA'S COPPER DEVELOPMENT. FEBRUARY 1974 P100-103.

  • 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.

  • Reserve-Resource

    ZAMBIA CONS. COPPER MINES LTD., 1991 ANNUAL REPORT, P.42,44.

  • 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.

  • Reserve-Resource

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

  • Deposit

    KCM Valuation, Prepared for ZCI Holdings SA and Vedanta Resources Plc by Rothschild, 15 January, 2008, 228 p. [www.zci.lu/KCM%20Valuation%20Report.pdf]

  • Reserve-Resource

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

  • Deposit

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

  • Reserve-Resource

    ZAMBIA CONS. COPPER MINES LTD., 1982 ANNUAL REPORT

  • Deposit

    Selley, David, Broughton, David, Scott, Robert, Hitzman, Murray, Bull, S.W., Large, R.R., McGoldrick, P.J., Croaker, Mawson, Pollington, Nicky, and Barra, Fernando, 2005, A new look at the geology of the Zambian Copperbelt, in Hedenquist, J.W., Thompson, J.F.H., Goldfarb, R.J., and Richards, J.P., eds., Economic Geology 100th Anniversary Volume, 1905-2005: Littleton, Colorado, Society of Economic Geologists, p. 965-1000.

  • Workings

    WYLLIE, R.J.M., HOW NCHANGA OPERATES FIVE OPEN PIT MINES ON THE ZAMBIAN COPPERBELT., WORLD MINING,JUNE 1970, P. 33-37.

  • Deposit

    Kirkham, Rodney, and Broughton, David, 2005, Appendix, Supplement to the sediment-hosted stratiform copper ore system, in J.W. Hedenquist, J.W., J.F.H. Thompson, J.F.H., Goldfarb, R.J., and J.P. Richards, J.P., eds., Economic Geology 100th Anniversary Volume, 1905-2005: Littleton, Colorado, Society of Economic Geologists, p. 609-642.

  • 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

    WALL STREET JOURNAL JAN 19,1979 P22.

  • Deposit

    VOET,H. W., FREEMAN, P. V. COPPER OREBODIES IN THE BASAL LOWER ROAN META-SEDIMENTS OF THE CHINGOLA OPEN PIT AREA ZAMBIAN COPPERBELT. GEOLOGIE EN MIJNBOUW, V.51, 1972, P. 299-308.

  • Deposit

    Konkola Copper Mines, Plc., 2010, Konkola Copper Mines Web page: accessed 2010, at http://www.kcm.co.zm/konkola.php. [Web page not available as of May, 2011]

  • Deposit

    2011, Central African Copperbelt: U.S. Geological Survey SIR

  • Deposit

    BURLS, R. V. C., HOLT, W., FURTHER DEVELOPMENTS IN OPEN PIT MINING AT NCHANGA. JOURNAL OF THE SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY, APRIL 1967, P. 421-453.

  • Deposit

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

  • Deposit

    DE KUN, N. THE MINERAL RESOURCES OF AFRICA. ELSEVIER, AMSTERDAM, 1965, P130-136,350-356,365-369.

  • Deposit

    PELLETIER, R. A. MINERAL RESOURCES OF SOUTH-CENTERAL AFRICA. OXFORD UNIV. PRESS, CAPE TOWN, 1964, P. 178-198.

  • Deposit

    ANGLO-AMERICAN CORP."IT'S A METALURGICAL BREAKTHROUGH ON THE COPPERBELT", CHRONICLE OF ACHIEVMENT--A SPECIAL SUPPLEMENT TO COAL, GOLD AND BASE MINERALS OF SOUTHERN AFRICA. MARCH 1978. PP. 11-13.

  • Deposit

    GEOLOGIE EN MIJNBOUW,"ZAMBIAN ISSUE."VOL.51,NO.3, MAY-JUNE 1972. PP. 247-468.

  • Deposit

    HOLMES,JOHN."SOLVENT EXTRACTION PROCESS IS MAJOR ADVANCE IN BASE METAL RECOVERY." PP. 47-15.

  • Deposit

    INTERNATIONAL SYMPOSIUM ON THE APPLICATION OF COMPUTER METHODS IN THE MINERAL INDUSTRY,PROCEEDINGS OF THE 10TH INTERNATIONAL SYMPOSIUM,JOHANNESBURG,REPUBLIC OF SOUTH AFRICA. APRIL 10-14, 1972.

  • Deposit

    MENDELSOHN,F. THE GEOLOGY OF THE NORTHERN RHODESIAN COPPERBELT. PP. 234-275.

  • Deposit

    NCHANGA CONSOLIDATED COPPER MINES LIMITED ANNUAL REPORT.

  • Deposit

    NCHANGA CONSOLIDATED COPPER MINES."ENGINEERING AND MINING JOURNAL, NOVEMBER 1979. PP. 150-159.

  • Deposit

    NCHANGA CONSOLIDATED COPPER MINES LIMITED--CHINGOLA DIVISION "NCHANGA OPEN PIT." JUNE 1973. PP. 1-20.

  • Deposit

    RITCEY,G.M."SOME ECONOMIC CONSIDERATION IN THE RECOVERY OF METALS BY SOLVENT EXTRACTION,"CIM BULLETIN. JUNE 1975. PP. 88-94.

  • Deposit

    SLINN,PETER."THE LEGACY OF THE BRITISH SO.AFRICA COMPANEY THE HISTORICAL BACKGROUND,"ECONOMIC INDEPENDENCE AND ZAMBIAN COPPER: A CASE STUDY OF FOREIGN INVESTMENT. PP. 23-74.

  • Deposit

    SMITH,B.WEBSTER."AFRICA-THE COPPERBELT "THE WORLD'S GREAT COPPER MINES. 1967. PP.55-67.

  • Deposit

    TALBOT,H.L. DECO-TREFOIL,"NCHANGA CONSOLIDATED COPPER MINES LIMITED--PART I: DEVELOPMENT AND PILOT PLANT OPERATIONS." MAY-JUNE 1948. PP. 1-16.

  • Deposit

    TALBOT, H.L. DECO-TREFOIL,"NCHANGA CONSOLIDATED COPPER MINES LIMITED--PART II: DESIGN FEATURES OF MAIN PLANT."MAY-JUNE 1948. PP. 1-9.

  • Deposit

    THE ZIMCO MANAGEMENT DIARY--1979.

  • Deposit

    THE INSTITUTE OF MINING AND METALLURGY."OPTIMA/1--A MANAGEMENT INFORMATION SYSTEM AT NCHANGA OPEN PIT, ZAMBIA." TRANSACTIONS, VOL. 82, BULLETIN NO. 800. JULY 1973. PP. A83-99

  • Deposit

    THE INSTITUTE OF MINING AND METALLURGY,"ALLOCATION AND CONTROL OF THE TRUCK FLEET AT NCHANGA OPEN PIT, ZAMBIA." TRANSACTIONS, VOL. 82, BULLETIN NO. 803. OCTOBER 1973. PP. A131-A139.

  • Deposit

    WILKIE, N.A.,HOLT,W."A DESCRIPTION OF OPEN PIT MINING AT NCHANGA CONSOLIDATED COPPER MINES LIMITED, NORTHERN RHODESIA,"7TH COMM. MINERALS AND METALURGICAL CONGRESS (NORTHERN RHODESIAN SECTION). PAPER 14. APRIL 1961. PP. 2-20.

  • Deposit

    WOLF, K.H. HANDBOOK OF STRATABOUND AND STRATIFORM ORE DEPOSITS--REGIONAL STUDIES AND SPECIFIC DEPOSITS--COPPER, ZINC, LEAD, AND GOLD DEPOSITS. 1976. PP. 223-351.

  • Deposit

    ZAMBIAN MINING YEARBOOK-1978.

  • Deposit

    CORNWALL,F.W.D."DISCOVERY AND EXPLORATION OF THE FITULA COPPER DEPOSIT, NCHANGA AREA, ZAMBIA" THE INSTITUTE OF MINING AND METALLURGY, PROCEEDING OF THE NINTH COMMONWEALTH MINING AND METALURGICAL CONGRESS 1969, VOL. 2. PP 535--560.

  • Deposit

    DEVLETTER, D.R.; DIJKSTRA,S.; AND TERBRUGGEN,J.W.(EDS). JOURNAL OF THE ROYAL GEOLOGICAL AND MINING SOCIETY OF THE NETHERLANDS. GEOLOGIE EN MIJNBOUW, ZAMBIA ISSUE. VOL. 51, NO.3 MAY-JUNE 1972. PP. 247-468.

  • Deposit

    FLEISCHER, V.D. GARLICK,W.G.; AND HALDAN,R. "GEOLOGY OF THE ZAMBIAN COPPERBELT,"HANDBOOK OF STRATABOUND AND STRATIFORM ORE DEPOSITS. CHAPTER 4. PP. 224-351.

  • Deposit

    NCHANGA CONSOLIDATED COPPER MINES LIMITED ANNUAL REPORT 1979

  • Deposit

    ANON. "A DESCRIPTION OF OPEN PIT MINING AT NCHANGA CONSOLIDATED COPPER MINES LIMITED." UNKNOWN DATE. PP. 17-20.

  • Deposit

    EVANS,J.P."PROCESS DESIGN OF HYDROMETALLURGICAL TREATMENT OF CHINGOLA CUPRIFEROUS MICA ORES,"TRANSACTIONS OF THE INSTITUTE OF MINING AND METALLURGY VOL.85. MARCH 1976.

  • Deposit

    MENDELSOHN,F.THE GEOLOGY OF THE NORTHERN RHODESIAN COPPERBELT 1961.

  • Deposit

    NCHANGA CONSOLIDATED COPPER MINES LIMITED (CHINGOLA DIVISION) "A VISITORS GUIDE TO THE HIGH GRADE LEACH PLANT."

  • Deposit

    PERSONAL COMMUNICATIONS.

  • Deposit

    THE ZIMCO DIARY,PUBLISHED BY ZIMCO INFORMATION AND PUBLICITY UNIT OF ZAMBIA INDUSTRIAL AND MINING CORPORATION.

  • Deposit

    ULETTER,D.R.;DIJKSTRA,S.; AND TERBRUGGEN,J.W. GEOLOGIE EN MIJNBOUW. "ZAMBIA ISSUE. VOL. 51, NO. 3. MAY-JUNE 1972. P. 247-468.

  • Deposit

    "ZAMBIA."ENGINEERING AND MINING JOURNAL. NOVEMBER 1979. PP. 146-188.

  • Deposit

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

  • Deposit

    MINING MAGAZINE, 10/92, P.208.

Comments on the references

  • Add to biblio: Kirkham, Rodney, and Broughton, David, 2005, Appendix, Supplement to the sediment-hosted stratiform copper ore system, in J.W. Hedenquist, J.W., J.F.H. Thompson, J.F.H., Goldfarb, R.J., and J.P. Richards, J.P., eds., Economic Geology 100th Anniversary Volume, 1905-2005: Littleton, Colorado, Society of Economic Geologists, p. 609-642.
  • Add to biblio: Selley, David, Broughton, David, Scott, Robert, Hitzman, Murray, Bull, S.W., Large, R.R., McGoldrick, P.J., Croaker, Mawson, Pollington, Nicky, and Barra, Fernando, 2005, A new look at the geology of the Zambian Copperbelt, in Hedenquist, J.W., Thompson, J.F.H., Goldfarb, R.J., and Richards, J.P., eds., Economic Geology 100th Anniversary Volume, 1905-2005: Littleton, Colorado, Society of Economic Geologists, p. 965-1000. [add fig. 6. to "pages" field]

General comments

Subject category Comment text
Deposit THE WALL ST. JOURNAL ARTICLE SAYS 150000 TONNES OF COBALT RESERVES HAVE BEEN DEFINED AT CHINGOLA. COBALT ORE FOUND NEAR AND AROUND NCHANGA PIT. ZAMBIAN COPPER INV. LTD. IS PART OF THE ANGLO AMERICAN GROUP THE CHINGOLA DIVISION IS COMPOSED OF 5 OPEN PITS AND 1 UNDERGROUND MINE.THE LARGEST PIT IS THE NCHANGA PIT. OTHERS ARE LISTED UNDER THE NAME DATA SET. NAMES WITH ORE BODY SUFFIX HAVE NOT BEEN MINED YET. THIS SEQ. NUMBER COVERS ALL OPERATIONS OF THE CHINGOLA DIV. OF NCCM INCLUDING MINING AND MILLING OF SURFACE +UG ORE, OPERATIONS OF HIGH GRADE LEACH PLANT AND TAILINGS LEACH PLANT. IT ALSO ADDRESSES MINING AND MILLING OF COBALT ORE STARTING 1983 AND ECONOMICS OF NEW CO ROAST/LEACH/EW PLANT BEING CONSTRUCTED AT ROKANA. ONE MAJOR ASSUMPTION CONCERNING CCO PROCESSING IS THAT MODIFICATIONS WOULD BE MADE TO THE CHINGOLA MILLS (E OR W) SO THAT INITIAL PROCESSING WOULD BE ON-SITE. THIS ASSUMPTION WAS MADE BECAUSE ACTUAL PLANS ARE NOT AVAILABLE IN PUBLISHED LITERATURE AND PHONE CALLS TO INDIVIDUALS GAVE CONFLICTING VERSIONS. THE REASON NCHANGA AND CHINgOLA MINES WERE EVALUATED TOGETHER IN THE G,L,AND M DATA SETS IS BECAUSE THEY ARE LOCATED CLOSE TO EACH OTHER AND THEIR CHARACTERISTICS ARE SIMILAR PREVIOUS INVESTIGATOR: EHB/GOLDER, SEPT., 1982.
Deposit Deposit types for each pit can be different. Mimbula is Sandstone (Revett)-hosted.

Reporter information

Type Date Name Affiliation Comment
Reporter 1997-03-10 Porter, Kenneth E. U.S. Bureau of Mines
Reporter 1994-12-19 Bleiwas, Donald U.S. Bureau of Mines MAS 7940050010 = newMRDS 10158996
Reporter 1980-06-01 Gassaway, Judith S. U.S. Geological Survey W032842 = newMRDS 10100265, merged and deleted.
Reporter 2010-06-03 Wilson, Anna B. U.S. Geological Survey On 28-sep-2009 merged and deleted W032842 = newMRDS 10100265 into 10158996. Then on 6/3/10 merged and deleted 10158996 (MAS 7940050010) into 10159181.

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

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