DIMA

Producer in Katanga, Congo (Kinshasa) with commodities Copper, Cobalt

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Commodities
Materials information
Mineral occurrence model information
Host and associated rocks
Nearby scientific data
Geologic structures
Ore body information
Economic information about the deposit and operations
Mining district
Mineral rights holdings
Ownership information
Production statistics
Reserves and resources
Workings at the site
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10256244
MRDS ID	W029731
MAS/MILS ID	7660400001
Record type	Site
Current site name	DIMA
Alternate or previous names	Dima, Dikuluwe/Mashamba Dima, Dikuluwe-Mashamba, Dikuluwe/Mashamba

Geographic coordinates

Point of reference	Ore Body
Geographic coordinates:	25.37523, -10.74116 (WGS84)
Location accuracy	1000(meters)
Relative position	ABOUT 5 KM SOUTH WEST OF KAMOTO, NEAR KOLWEZI. (Coordinates are probably for Mashamba West pit (between Dikuluwe and Mashamba East).

Site location context

Political divisions (FIPS codes)

Katanga(province)

Congo (Kinshasa)(country)

Geographic areas

Country	State
Congo (Kinshasa)	Katanga

Comments on the location information

DIKULUWE OPEN PIT AND MASHAMBA OPEN PIT ARE LOCATED AT ONE ORE DEPOSIT. MASHAMBA AND DIKULUWE ARE LOCATED IN THE WESTERN PART OF THE KOLWEZI ZONE TO THE SOUTHWEST OF THE KAMOTO CONCENTRATOR. A FEW KILOMETERS SW OF KAMOTO MINE

Commodities

Commodity	Importance
Copper	Primary
Cobalt Critical	Secondary

Materials information

Materials	Type of material
Chalcocite	Ore
Chrysocolla	Ore
Covellite	Ore
Cuprite	Ore
Malachite	Ore
Digenite	Ore
Heterogenite	Ore
Carrollite	Ore

Analytical data

Result	THE DIKULUWE-MASHAMBA DEPOSIT IS CHARACTERIZED BY ITS RELATIVELY LOW CONTENT OF OXIDIZED MINERALS. THESE ONLY ACCOUNT FOR 14 % OF THE ORE COMPARED TO 57 % FOR MIXED OXIDES-SULFIDES AND 29 % FOR SULFIDE MINERALS. 3.8 % COPPER AND 0.4 % COBALT.

Mineral occurrence model information

Model code	197
USGS model code	30b
Deposit model name	Sediment-hosted Cu
Mark3 model number	63

Host and associated rocks

Host or associated Host

Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
Host or associated Host

Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
Host or associated Host

Rock type Sedimentary Rock > Carbonate > Dolomite

Host or associated	Host
Rock type	Metamorphic Rock > Metasedimentary Rock > Quartzite

Host or associated	Host
Rock type	Sedimentary Rock > Clastic Sedimentary Rock > Shale

Host or associated	Host
Rock type	Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

Ore Body (1)	25.37523, -10.74116	ListMap

Economic information

Geologic structures

Type of structure	Regional
Structure name	Copper Belt

Ore body information

Strike

N90E

Dip

70E

Thickness

80M

Length

1250M

Width

35M

Area

2000HA

Depth to top

400M

Field	Value
Type of Orebody #1	SEDIMENTARY
Shape of Orebody #1	IRREGULAR
Type of Orebody #2	OTHER
Primary mode of Origin	SEDIMENTATION
Secondary mode of Origin	METAMORPHISM
Primary Ore Control	FAULTING
Secondary Ore Control	FOLDING
Degree of Wallrock Alter.	SLIGHT
Type of Wallrock Alter. #1	DOLOMITIZATION
Type of Wallrock Alter. #2	SERICITIC
Strike And Dip	N90E:70E
Total Surface Area (HA)	2000
Date of Last Modification	830712

Comments on the geologic information

OTHER MINERALS INCLUDE HETEROGENITE AND SPHAEROCOBALTITE.
THE MASHAMBA ANTICLINE AND THE EXTRUDED DIKULUWE BODY ARE CONNECTED BY A DEEP SYNCLINE.
IN THE SOUTHWESTERN SECTION THE TWO OREBODIES ARE PURELY COPPER BEARING. THE COBALT CONTENT INCREASES AND THE COPPER CONTENT DIMINISHES IN A NORTH-EASTERLY DIRECTION. THE ORE IS QUITE COMPLEX IN NATURE. BUT IS OF A VERY HIGH GRADE BY MODERN COPPER MINING STANDARDS.

Economic information about the deposit and operations

Operation type	Surface
Development status	Producer
Commodity type	Metallic
Significant	Yes
Discovery year	1921
Mining method	Open Pit
Year of first production	1975
Milling method	Flotation

Mining district

District name	Kolwezi District

Mineral rights holdings

Type of mineral rights	Unknown

Ownership information

Type Owner-Operator

Owner La Generale Des Carrieres Et Mines Du Zaire (State Owned) (Gecamines)

Interest 100

Home office Zaire

Year 1990

Type	Owner-Operator
Owner	La Generale Des Carrieres Et Mines Du Zaire (State Owned) (Gecamines)
Interest	100
Home office	Zaire
Year	1990

Production statistics

Year

1975

Description

Copper Output- Conc. Out 35% Cu, .64% Co 66000 Mt Ore/Yr

Importance	Item	Commodity	Group	Amount recovered	Grade	Recovery percentage
Minor	Conc.	Cobalt	Cobalt		1wt-pct
Major	Conc.	Copper	Copper		35wt-pct

Year

1976

Description

Ore Input Is 3.82% Cu, .18% Co 141000 Mt Ore/Yr

Importance	Item	Commodity	Group	Amount recovered	Grade	Recovery percentage
Minor	Ore	Cobalt	Cobalt		0wt-pct
Major	Ore	Copper	Copper		4wt-pct

Year 1977

Description Production Of Ore 259000 Mt Ore/Yr
Year 1978

Description Production Of Ore 300000 Mt Ore/Yr
Year 1979

Description Production Of Ore 350000 Mt Ore/Yr
Year 1980

Description Production Of Ore 1000000 Mt Ore/Yr

Year	1977
Description	Production Of Ore 259000 Mt Ore/Yr

Year	1978
Description	Production Of Ore 300000 Mt Ore/Yr

Year	1979
Description	Production Of Ore 350000 Mt Ore/Yr

Year	1980
Description	Production Of Ore 1000000 Mt Ore/Yr

Year

2006

Period

1985-1988

Material

MAshamba East: 9,794,880 mt @ 4.96% cu and 0.35% Co. (Jobin-Bevans, 2006, p. 38).

Ore mined

9794880mt

Accuracy

Accurate

Importance	Item	Commodity	Group	Amount recovered	Grade	Recovery percentage
Secondary		Cobalt	Cobalt		0wt-pct
Primary		Copper	Copper		5wt-pct

Year

2006

Period

1978-1995

Material

Mashamba West:\n21,816,840 mt ore @ 4.35% cu and 0.14% Co. (Jobin-Bevans, 2006, p. 39).

Ore mined

21816840mt

Accuracy

Accurate

Importance	Item	Commodity	Group	Amount recovered	Grade	Recovery percentage
Secondary		Cobalt	Cobalt		0wt-pct
Primary		Copper	Copper		4wt-pct

Year

2006

Period

1975-1993

Material

26,062,244 metric tons ore mined at Dikuluwe from 1975-1993. (Jobin-Bevans and others, 2006, p. 39)

Ore mined

26062244mt

Accuracy

Accurate

Importance	Item	Commodity	Group	Amount recovered	Grade	Recovery percentage
Secondary		Cobalt	Cobalt		0wt-pct
Primary		Copper	Copper		5wt-pct

Comments on the production information

SCHEDULED CAPACITY UP TO A MINING RATE OF 1.01 MILLION TPY BY THE END OF 1975; SCHEDULED CAPACITY ABOUT 3 MILLION TONNES PER YEAR (from deelted record W029731 = 10079668).
THE DIMA CONCENTRATOR IS DIVIDED INTO TWO SECTIONS. DIMA 1 FOR MIXED ORES AND DIMA 2 FOR OXIDES DURING THE FIRST YEARS OF OPERATION.

Reserves and resources

Type

In-situ

Name

Indicated at Mashamba East

Estimate year

2009

Indicated

75000000mt

Remarks

75Mt @ 1.85 Cu and 0.38% Co (Dixon and others, 2009, p. 14, 111)

Commodity	Subtype	Grade	units	Group	Importance	Year
Cobalt		0.38	wt-pct	Cobalt	Secondary	2009
Copper		1.8	wt-pct	Copper	Primary	2009

Type

In-situ

Name

inferred at Mashamba East

Estimate year

2009

Inferred

65300000mt

Remarks

65.3Mt @ 0.76% Cu and 0.1% Co. inferred resource at Mashamba East (Dixon and others, 2009, p. 14, 111).

Commodity	Subtype	Grade	units	Group	Importance	Year
Cobalt		0.1	wt-pct	Cobalt	Secondary	2009
Copper		0.76	wt-pct	Copper	Primary	2009

Type

In-situ

Name

measured resource at Mashamba West

Estimate year

2007

Measured

13600000mt

Remarks

Measured resource at mashamba West 13.6Mt @ 2.97% Cu and 0.18% Co (Dixon and others, 2009, p. 113).

Commodity	Subtype	Grade	units	Group	Importance	Year
Cobalt		0.18	wt-pct	Cobalt	Secondary	2007
Copper		2.97	wt-pct	Copper	Primary	2007

Type

In-situ

Name

indicated at Mashamba West

Estimate year

2007

Indicated

3100000mt

Remarks

indicated at Mashamba West 3.1Mt @ 2.87 cu and 0.13% Co (Dixon and others, 2009, p. 113)

Commodity	Subtype	Grade	units	Group	Importance	Year
Cobalt		0.13	wt-pct	Cobalt	Secondary	2007
Copper		2.87	wt-pct	Copper	Primary	2007

Type

In-situ

Name

measured at Dikuluwe

Estimate year

2007

Measured

24100000mt

Remarks

Measured at Dikuluwe 24.1 Mt @ 3.89% cu and 0.1% Co (Dixon and others, 2009, p. 113).

Commodity	Subtype	Grade	units	Group	Importance	Year
Cobalt		0.1	wt-pct	Cobalt	Secondary	2007
Copper		3.89	wt-pct	Copper	Primary	2007

Type

In-situ

Name

indicated at Dikuluwe

Estimate year

2007

Indicated

8800000mt

Remarks

indicated at dikuluwe 8.8 Mt @ 4.19% cu and 0.09% Co (Dixon and others, 2009, p. 113).

Commodity	Subtype	Grade	units	Group	Importance	Year
Cobalt		0.09	wt-pct	Cobalt	Secondary	2007
Copper		4.19	wt-pct	Copper	Primary	2007

Type

In-situ

Name

inferred at Dikuluwe

Estimate year

2007

Inferred

32900000mt

Remarks

inferred at Dikuluwe 32.9 Mt @ 3.97% cu and 0.09% co (Dixon and others, 2009, p. 113)

Commodity	Subtype	Grade	units	Group	Importance	Year
Cobalt		0.09	wt-pct	Cobalt	Secondary	2007
Copper		3.97	wt-pct	Copper	Primary	2007

Type In-situ

Estimate year 1975

Total resources 3000000mt ore

Commodity Subtype Grade units Group Importance Year

Copper Cu 7 wt-pct Copper Primary 1975

Type

In-situ

Estimate year

1975

Total resources

28000000mt ore

Commodity	Subtype	Grade	units	Group	Importance	Year
Cobalt	cobalt	1	wt-pct	Cobalt	Secondary	1975
Copper	copper	5	wt-pct	Copper	Primary	1975

Comments on the reserve resource information

JAN.1,1980 RESERVES CONTAINED IN THE FOLLOWING DEPOSITS: DIKULWE- 76600000MT 4.0%CU,0.11%CO MASHAMBA WEST- 53400000MT 3.6%CU,0.1%CO MASHAMBA EAST- 29100000MT 3.7%CU,0.77%CO JUNCTION DIMA- 11200000MT 3.1%CU,0.2%CO DIMA BASIN- 30000000MT 4.1%CU COMBINED IN WESTERN DIVISION - SEQ # 7660400030
M9C4=M1C3+M2C3+M3C3. MATRIX 1 COLUMN 3 REPRESENTS RESOURCE TONNAGE OF COPPER OXIDES. MATRIX 2 COLUMN 3 REPRESENTS RESOURCE TONNAGE OF MIXED COPPER OXIDES AND COPPER SULFIDES. MATRIX 3 COLUMN 3 REPRESENTS RESOURCE TONNAGE OF COPPER SULFIDES MATRIX 9 COLUMN 4 REPRESENTS TOTAL COPPER ORE RESOURCE.
H1) RESERVES NEAR SURFACE MATERIAL GRADING AT LEAST 7 % CU, SOME AREAS UP TO 12 % CU IN MALACHITE CONCENTRATIONS. H2) OXIDE AND MIXED ORE
FIGURE REPRESENTS ORE RESERVES AT DIKULUWE AND MASHAMBA; 28,000,000 MET TONNES OF RESERVES ARE IN DIKULUWE PIT. DIKULUWE ORES NEAR THE SURFACE GRADE AT LEAST 7% CU.

Workings at the site

Type of workings

Surface

Area

2000HA

Field	Value
MAS Development Schedule #	1
Mining Record #	1
Status of Mining Method	ACTUAL
Mining Method	BENCH (BERM)
Percent Waste Rock	75
Avg. Bench Height (meters)	10
Max. Pit Slope (degrees)	35
Capacity	3226
Capacity Units	MT ORE/DAY
Unit Production Cost	6.93
Units of Production	$/MT ORE
Operating Days per Year	310
Operating Shifts per Day	3
Year of Information	1981

Type of workings

Surface

Area

2000HA

Field	Value
MAS Development Schedule #	1
Mining Record #	2
Status of Mining Method	ACTUAL
Mining Method	BENCH (BERM)
Percent Waste Rock	75
Avg. Bench Height (meters)	10
Max. Pit Slope (degrees)	35
Capacity	6452
Capacity Units	MT ORE/DAY
Unit Production Cost	6.93
Units of Production	$/MT ORE
Operating Days per Year	310
Operating Shifts per Day	3
Year of Information	1981

Type of workings

Surface

Area

2000HA

Field	Value
MAS Development Schedule #	1
Mining Record #	3
Status of Mining Method	ACTUAL
Mining Method	BENCH (BERM)
Percent Waste Rock	75
Avg. Bench Height (meters)	10
Max. Pit Slope (degrees)	35
Capacity	12903
Capacity Units	MT ORE/DAY
Unit Production Cost	6.93
Units of Production	$/MT ORE
Operating Days per Year	310
Operating Shifts per Day	3
Year of Information	1981

Comments on other economic factors

TWO OPEN PIT MINES-DIKULUWE AND MASHAMBA ARE OPERATED IN CONJUNCTION WITH ONE ANOTHER.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
U.S. Bureau of Mines	Minerals Availability System	MAS	7660400001
USGS	Mineral Resources Data System	MRDS	W029731	MAS references MRDS
USGS	Mineral Resources Data System	MRDS	W029732	=newMRDS 10079669, Dikuluwe, merged and deleted.
USGS	International Strategic Minerals Inventory	ISMI	unknown	Referenced in deleted record W029732.
USGS	International Strategic Minerals Inventory	ISMI	XXXXXXXX	unknown record #.

Bibliographic references

Deposit

ANON. 1974. GEOLOGICAL BACKGROUND TO THE COPPER BEARING STRATA OF SOUTHERN SHABA (ZAIRE). L. COHEN GISEMENTS STRATIFORMES ET PROVINCES CUPRIFIERS, LIEGE. PP. 57-77.
Reserve-Resource

CROCKETT AND OTHERS, 1987, INTERNATIONAL STRATEGIC MINERALS INVENTORY SUMMARY REPORT-- COBALT: U.S. GEOLOGICAL SURVEY CIRCULAR 930-F, 54 P.
Production

GECAMINES, 1975, ANNUAL REPORT
Deposit

ANON. 1974. STRATIGRAPHIE, TECTONIQUE ET MINERALISATIONS DANS L'ARC CUPRIFERE DU SHABA (REPUBLIQUE DU ZAIRE).
Deposit

A. FRANCOIS CENTENAIRE DE LA SOCIETE GEOLOGIQUE DE BELGIQUE. GISEMENTS STRATIFORMES ET PROVINCES CUPRIFERES, LIEGE. PP. 79-101.
Deposit

ANON. 1979. ZAIRE. ENGINEERING AND MINING JOURNAL. NOVEMBER. PP. 188-206.
Deposit

DEMESMAEKER, G., FRANCOIS, A., OOSTERBOSCH, R. 1963. LA TECTONIQUE DES GISEMENTS CUPRIFERES STRATIFORMES DU KATANGA. IN: LOMBARD, J., NICOLINI, P., ED., GISEMENTS STRATIFORMES DE CUIVRE EN AFRIQUE, 2E PARTIE, ASSOCIATION DES SERVICES GEOLOGIQUES AFRICAINS, PARIS. PP. 47-115.
Deposit

GECAMINES ANNUAL REPORT. 1967-1978.
Deposit

PERSONAL COMMUNICATIONS.
Deposit

MINING MAGAZINE, 11/1975 P. 341.
Deposit

CROCKETT AND OTHERS, 1987, INTERNATIONAL STRATEGIC MINERALS INVENTORY SUMMARY REPORT-- COBALT: U.S. GEOLOGICAL SURVEY CIRCULAR 930-F, 54 P.
Deposit

WORLD MINING, 8/77 PP.46
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)] http://www.investis.com/kat/operations/reportsoperational/kcc_techreport_06_06_23.pdf
Deposit

Dixon, R., Simposya, V., Takolia, E., Waldeck, W., Salter, H., von Wielligh, A., Naismith, A., Cilliers, P., and McNeill, R., 2009, An Independent Technical Report on the Material Assets of Katanga Mining Limited, Katanga Province, Democratic Republic of Congo ("DRC"), prepared by SRK Consulting for Katanga Mining Ltd., 216 p., [http://www.investis.com/kat/operations/reportsoperational/techreport-mar09.pdf] [available on sedar.com Technical Report March 31, 2009 for Katanga Mining Ltd., accessed 5/26/10]

General comments

Subject category	Comment text
Deposit	OUTCROP OF OREBODY STRIKES NORTH-SOUTH AND DIPS ABOUT 45 DEGREES TO THE EAST.
Deposit	THE NEW DIMA FLOTATION CONCENTRATOR IS A CENTRAL FIGURES OF GECAMINES SECOND FIVE-YEAR DEVELOPMENT PLAN (1975 TO 1979) ; TOTAL$: 435 ; ECON.COM: DEVELOPMENT OF TWO OPEN PITS, CONSTRUCTION OF A FLASH SMELTER AND ELECTROLYTIC REFINERY (TO BE ON STREAM BY 1977).

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	05-APR-95	Porter, Kenneth E.	U.S. Bureau of Mines
Reporter	01-JAN-78	Saam, Henning G.	U.S. Geological Survey	W029732, Dikuluwe. = newMRDS 10079669. W029731, Mashamba =newMRDS 10079668.
Reporter	01-DEC-87	Orris, Greta J.	U.S. Geological Survey	W029732, Dikuluwe. = newMRDS 10079669
Editor	17-FEB-10	Wilson, Anna B.	U.S. Geological Survey	merged and deleted W029732 (Dikuluwe) = newMRDS 10079669. merged and deleted W029731 (Mashamba) =newMRDS 10079668.
Updater	01-JAN-88	Orris, Greta J.	U.S. Geological Survey	Revised former record W029731 (newMRDS 10079668).

Beyond USGS

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

DIMA

Geologic information

Identification information

Geographic coordinates

Site location context

Geographic areas

Comments on the location information

Commodities

Materials information

Analytical data

Mineral occurrence model information

Host and associated rocks

Nearby scientific data

Economic information

Geologic structures

Ore body information

Comments on the geologic information

Economic information about the deposit and operations

Mining district

Mineral rights holdings

Ownership information

Production statistics

Comments on the production information

Reserves and resources

Comments on the reserve resource information

Workings at the site

Comments on other economic factors

Reference information

Links to other databases

Bibliographic references

Deposit

Reserve-Resource

Production

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

General comments

Reporter information

Beyond USGS

Maps centered on this site