CANADIAN AND WORLD MINERAL DEPOSIT DATABASES
Geological Survey of Canada


Deposit number Country Location Names Commodities
411 Zambia (Northwest) 12.10.44 S -- 025.51.05 E Chimiwungo; Lumwana Project Cu; U
 
Database name: World Sediment-Hosted Cu Deposits
Compilers: R. V. Kirkham, J. J. Carriere, A. Rafer, and P. Born
Release date: 2015-01-27
   
Deposit name(s): Chimiwungo; Lumwana Project
Political location(s): Zambia; Province or state: Northwest; Nearest community: Lumwana
Deposit clan (type): sediment-hosted copper
Deposit (sub) types: undifferentiated; coarse blebby disseminations in muscovitic schist
Commodities: Cu; U
Geological ages: Middle Proterozoic (host rocks)
Tectonic setting: continental rift-graben; divergent (host rocks)
Host rocks: (1) metamorphic; schist; Magma series/sedimentary package/metamorphic group: high alumina; Metamorphic grade: amphibolite
Individual lithologies:muscovite-phlogopite-kyanite schist
Qualified comments: (Applies to: miscellaneous comments) coarse blebby disseminations in muscovitic schist; original slightly carbonaceous shale metamorphosed medium-high grade

(Applies to: miscellaneous comments) Uranium in the Chimiwungo and Malundwe copper deposits occurs as discrete uranium-enriched zones, separate from the cupper sulphide mineralization. These zones are characterized by couarse (<= 3 cm) uraninite aggregates and fine-grained disseminations aligned with the north-south foliation of the host rocks. It is not accompanied by thorium.
References:
Benham, D. G.; Greig, D. D.; Vink, B. W., 1976
Copper Occurrences of the Mombezhi Dome Area, Northwestern Zambia
Economic Geology, Volume 71, p. 433 - 442

Jowett, E.C., 1989
Effects of Continental Rifting on the Location and Genesis of Stratiform Copper-silver Deposits
Section Introduction, General Principles and Geochemical Aspects, in Sediment Hosted Stratiform Cu Deposits, Ottawa, May 1986, Edited by Boyle, R. W.; Brown, A. C.; Jefferson, C. W.; Jowett, E. C.; Kirkham, R. V., Special Paper, Geological Association of Canada, 36, 710 p, p. 53 - 66

Legg, C. A., 1973
Provisional Mineral Map of the Republic of Zambia
Geological Survey of Zambia

Williams, C. R., 2007
Lumwana Uranium Feasibility Study at Malundwe Delivers High Grade Uranium Intercepts
Press Release, Equinox Minerals Limited, Publication code 2007-07-24

Resource data:
Disclaimer - Reserves/Resource Data

Her Majesty the Queen in Right of Canada, represented by the Minister of Natural Resources (NRCan) does not warrant or guarantee the accuracy, completeness or fitness for any purpose of Reserve and Resource information (Data) contained in this database, including whether the Data is compliant with any securities regulations or standards, and NRCan does not assume any liability with respect to any damage or loss incurred as a result of the use made of the Data.

Resource and reserve figures are historical in nature. The Data source provided with each set of figures should be cited if the Data are re-reported.

Estimate date: 1985-04-01; 953,000,000 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: estimated resource
Grade-commodity information:Cu: 0.64 percent
Reference: Freeman, P. V., 1986: Personal Communication
Percent weights allocated to deposit: 100.0%


Estimate date: 1998-01-26; 1,000,000,000 metric ton ore; Combined with production?: no; Provisional entry?: yes; Resource category: global resources
Grade-commodity information:Cu: 0.7 percent
Reference: Northern Miner, 1998: Zambia nears end of ZCCM privatization; The Northern Miner, January 26, 1998 issue, p. B1
Percent weights allocated to deposit: 100.0%


Estimate date: 2006-10; Component: sulphide; 81.5 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: proven reserve
Grade-commodity information:Cu: 0.7 percent
Cutoff grade-commodity:Cu: 0.02 percent
Reference: Anonymous, 2007: Lumwana Project; Equinox Minerals Limited, Company Project Descriptions, internet
Percent weights allocated to deposit: 100.0%


Estimate date: 2006-10; Component: sulphide; 118.7 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: probable reserve
Grade-commodity information:Cu: 0.57 percent
Cutoff grade-commodity:Cu: 0.02 percent
Reference: Anonymous, 2007: Lumwana Project; Equinox Minerals Limited, Company Project Descriptions, internet
Percent weights allocated to deposit: 100.0%


Estimate date: 2006-10; Component: sulphide; 413 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: inferred resource
Grade-commodity information:Cu: 0.6 percent
Cutoff grade-commodity:Cu: 0.02 percent
Reference: Anonymous, 2007: Lumwana Project; Equinox Minerals Limited, Company Project Descriptions, internet
Percent weights allocated to deposit: 100.0%


Estimate date: 2006-10; Component: oxide; 5.2 million metric tons ore; Combined with production?: no; Provisional entry?: yes; Resource category: proven reserve
Grade-commodity information:Cu: 0.85 percent
Cutoff grade-commodity:Cu: 0.02 percent
Reference: Anonymous, 2007: Lumwana Project; Equinox Minerals Limited, Company Project Descriptions, internet
Percent weights allocated to deposit: 50.0%


Estimate date: 2006-10; Component: oxide; 4.4 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: probable reserve
Grade-commodity information:Cu: 0.52 percent

Percent weights allocated to deposit: 50.0%


Estimate date: 2006-10; Component: oxide; 3.6 million metric tons ore; Combined with production?: no; Provisional entry?: no; Resource category: inferred resource
Grade-commodity information:Cu: 0.42 percent
Cutoff grade-commodity:Cu: 0.02 percent
Reference: Anonymous, 2007: Lumwana Project; Equinox Minerals Limited, Company Project Descriptions, internet
Percent weights allocated to deposit: 50.0%

Generated 2015-01-27 17:19:19 with GQuery -- 3.7 ADO (3.19..3.22 -- 2008-12-16)
GlobalDB System, Geological Survey of Canada, Natural Resources Canada