The Tsumeb polymetallic deposit of Otavi Mountain Land (OML), Namibia, is a prominent deposit of remarkable and complex mineral species with the accreditation of about 337 valid minerals. A total of 72 species of these minerals are of Tsumeb as the type of locality. The deposit was first prospected in 1893 by the South West Africa Company and it was mined from the year 1897 to 1996, yielding a total of about 30 Mt of ore with the grade of 10% Pb, 4.3% Cu, and 3.5% Zn along with ore minerals of As, Sb, Ag, Cd, and Au. The orebody also typifies the largest renowned single sulfidic accumulation of germanium (Ge). However, like many other deposits, the Tsumeb copper deposit has been exhausted. Hence, re-assessment of ore reserve and exploration is a crucial practice in the discovery of new mineral resources and occurrences. This practice requires extensive understanding of the geological characteristics and metallogenic mechanisms of the parent/exhausted ore deposit as a reference model. In this paper, we presented a summary description of the Tsumeb deposit (polymetallic Copper deposit) of the Otavi Mountain Land (OML), Namibia, with the main focus on the regional geological background, deposit geology and ore mineralization mechanism.
Cite this paper
Pitiya, R. P. and Peter, L. J. (2021). A Review on the Deposit Geology and Mineralization Mechanism of Tsumeb Polymetallic Deposit, Namibia. Open Access Library Journal, 8, e8121. doi: http://dx.doi.org/10.4236/oalib.1108121.
Cairncross, B. (2017) The Where of Mineral Names: Tsumebite, Tsumeb Mine, Namibia. Rocks & Minerals, 92, 466-472.
https://doi.org/10.1080/00357529.2017.1331402
Pirajno, F. and Joubert, B. (1993) An Overview of Carbonate-Hosted Mineral Deposits in the Otavi Mountain Land, Namibia: Implications for Ore Genesis. Journal of African Earth Sciences, 16, 265-272.
https://doi.org/10.1016/0899-5362(93)90048-U
Melcher, F. (2003) The Otavi Mountain Land in Namibia: Tsumeb, Germanium and Snowball Earth. Mitteilungen der Österreichischen Mineralogischen Gesellschaft, 148, 413-435.
Robert, B.J. (2014) Hydrogeochemistry of the Tsumeb Deposit: Implications for Arsenate Mineral Stability. Reviews in Mineralogy and Geochemistry, 79, 589-627.
https://doi.org/10.2138/rmg.2014.79.14
Chetty, D. and Frimmel, H. (2000) The Role of Evaporites in the Genesis of Base Metal Sulphide Mineralisation in the Northern Platform of the Pan-African Damara Belt, Namibia: Geochemical and Fluid Inclusion Evidence from Carbonate Wall Rock Alteration. Mineralium Deposita, 35, 364-376.
https://doi.org/10.1007/s001260050247
Nujoma, S. (2009) Copper—Its Geology and Economic Impact on Development in Namibia, Zambia and the Democratic Republic of the Congo. M.Sc Thesis, University of Namibia, Windhoek, 22.
Emslie, D.P. (1980) The Mineralogy and Geochemistry of the Copper Lead and Zinc Sulphides of the Otavi Mountainland (No. NIM-2056). National Institute for Metallurgy, Mpumalanga.
Meyer, M.C.G. (1953) The Importance of Outside Mining in Southern Africa. Journal of the Southern African Institute of Mining and Metallurgy, 53, 345-359.
Charles, S.B. and Geier, B.H. (1957) The Paragenetic Relationships of Germanite and Renierite from Tsumeb, South West Africa. Economic Geology, 52, 612-631.
Jones, R.T. and Mackey, P.J. (2015) An Overview of Copper Smelting in Southern Africa. Incorporating the 8th Southern African Base Metals Conference Livingstone, Zambia, 6-8 July 2015, 499-504.
Misiewicz, J.E. (1988) The Geology and Metallogeny of the Otavi Mountain land, Damara Orogen, SWA/Namibia, with Particular Reference to the Berg Aukas Zn-Pb-V Deposit: A Model of Ore Genesis. Thesis, Rhodes University, Grahamstown.
Kamona, A. and Günze, A. (2007) Stratigraphy and Base Metal Mineralization in the Otavi Mountain Land, Northern Namibia—A Review and Regional Interpretation. Gondwana Research, 11, 396-413. https://doi.org/10.1016/j.gr.2006.04.014
Ben, G., David, G. and Hand, M. (2004) Variation in Metamorphic Style along the Northern Margin of the Damara Orogen, Namibia. Journal of Petrology, 45, 1261-1295.
Maria, B., Rosario, T., Noreen, J.E., Carsten, L., Jens, S. and Thilo, B. (2007) Genesis of Vanadium Ores in the Otavi Mountainland, Namibia. Economic Geology, 102, 441-469. https://doi.org/10.2113/gsecongeo.102.3.441
Hartnady, C., Joubert, P. and Stowe, C. (1985) Proterozoic Crustal Evolution in Southwestern Africa. Episodes, 8, 236-244.
https://doi.org/10.18814/epiiugs/1985/v8i4/003
Nascimento, D.B., Ribeiro, A., Trouw, R.A.J., Schmitt, R.S. and Passchier, C.W. (2016) Stratigraphy of the Neoproterozoic Damara Sequence in Northwest Namibia: Slope to Basin Sub-Marine Mass-Transport Deposits and Olistolith Fields. Precambrian Research, 278, 108-125. https://doi.org/10.1016/j.precamres.2016.03.005
Laukamp, C. (2006) Structural and Fluid System Evolution in the Otavi Mountainland (Namibia) and Its Significance for the Genesis of Sulphide and Nonsulphide Mineralisation. phD Dissertation, Ruprecht-Karls-Universität, Heidelberg.
Mondillo, N., Herrington, R., Boyce, A., Wilkinson, C., Santoro, L. and Rumsey, M. (2018) Critical Elements in Non-Sulfide Zn Deposits: A Reanalysis of the Kabwe Zn-Pb Ores (Central Zambia). Mineralogical Magazine, 82, S89-S114.
https://doi.org/10.1180/minmag.2017.081.038
Gray, D.R., Foster, D.A., Meert, J.G., Goscombe, B.D., Armstrong, R., Trouw, R.A.J., et al. (2008) A Damara Orogen Perspective on the Assembly of Southwestern Gondwana. Geological Society, London, Special Publications, 294, 257-278.
https://doi.org/10.1144/SP294.14
Basson, I.J., McCall, M.J., Andrew, J. and Daweti, E. (2018) Structural Controls on Mineralisation at the Namib Lead and Zinc Mine, Damara Belt, Namibia. Ore Geology Reviews, 95, 931-944. https://doi.org/10.1016/j.oregeorev.2018.03.028
Stanistreet, I.G., Kukla, P.A. and Henry, G. (1991) Sedimentary Basinal Responses to a Late Precambrian Wilson Cycle: The Damara Orogen and Nama Foreland, Namibia. Journal of African Earth Sciences (and the Middle East), 13, 141-156.
https://doi.org/10.1016/0899-5362(91)90048-4
Prave, A.R. (1996) Tale of Three Cratons: Tectonostratigraphic Anatomy of the Damara Orogen in Northwestern Namibia and the Assembly of Gondwana. Geology, 24, 1115-1118.
https://doi.org/10.1130/0091-7613(1996)024<1115:TOTCTA>2.3.CO;2
Eyles, N. and Januszczak, N. (2007) Syntectonic Subaqueous Mass Flows of the Neoproterozoic Otavi Group, Namibia: Where Is the Evidence of Global Glaciation? Basin Research, 19, 179-198. https://doi.org/10.1111/j.1365-2117.2007.00319.x
Brandt, R. (1985) Preliminary Report on the Stratigraphy of the Damara Sequence and the Geology and Geochemistry of Damaran Granites in an Area between Walvis Bay and Karibib. Communications of the Geological Survey of South West Africa/Namibia, 1, 31-44.
Schlüter, T. (2006) Namibia. In: Geological Atlas of Africa: With Notes on Stratigraphy, Tectonics, Economic Geology, Geohazards and Geosites of Each Country, Springer, Berlin, Heidelberg, 172-175. https://doi.org/10.1007/3-540-29145-8_41
Haack, U. and Martin, H. (1983) Geochronology of the Damara Orogen—A Review. In: Martin, H. and Eder, F.W., Eds., Intracontinental Fold Belts, Springer, Berlin, 839-846. https://doi.org/10.1007/978-3-642-69124-9_36
Miller, M.R. (2013) Comparative Stratigraphic and Geochronological Evolution of the Northern Damara Supergroup in Namibia and the Katanga Supergroup in the Lufilian Arc of Central Africa. Geoscience Canada, 40, 118-140.
https://doi.org/10.12789/geocanj.2013.40.007
Germs, G.J., Miller, R.M., Frimmel, H.E. and Gaucher, C. (2009) Syn- to Late-Orogenic Sedimentary Basins of Southwestern Africa. Developments in Precambrian Geology, 16, 183-203. https://doi.org/10.1016/S0166-2635(09)01613-2
Haest, M. and Muchez, P. (2011) Stratiform and Vein-Type Deposits in the Pan-African Orogen in Central and Southern Africa: Evidence for Multiphase Mineralisation. Geologica Belgica, 14, 23-44.
Wenrich, K.J., Van Gosen, B.S., Finch, W.I. and du Bray, E.A. (1995) Solution-Collapse Breccia Pipe U Deposits. In: du Bray, E.A., Preliminary Compilation of Descriptive Geoenvironmental Mineral Deposit Models, United States Geological Survey, Reston, 244-251.
Hughes, M.J., Welke, H.J. and Allsopp, H.L. (1984) Lead Isotopic Studies of Some Late Proterozoic Stratabound Ores of Central Africa. Precambrian Research, 25, 137-139. https://doi.org/10.1016/0301-9268(84)90029-9
De Waele, J. (2017) Karst Processes and Landforms. In: Richardson, D., Castree, N., Goodchild, M.F., Kobayashi, A., Liu, W. and Marston, R.A., Eds., The International Encyclopedia of Geography, John Wiley & Sons, Hoboken.
https://doi.org/10.1002/9781118786352.wbieg0968
Schneider, J., Boni, M., Laukamp, C., Bechstädt, T. and Petzel, V. (2008) Willemite (Zn2SiO4) as a possible Rb-Sr Geochronometer for Dating Nonsulfide Zn-Pb Mineralization: Examples from the Otavi Mountainland (Namibia). Ore Geology Reviews, 33, 152-167. https://doi.org/10.1016/j.oregeorev.2006.05.012
Chetty, D. and Frimmel, H. (2000) The Role of Evaporites in the Genesis of Base Metal Sulphide Mineralisation in the Northern Platform of the Pan-African Damara Belt, Namibia: Geochemical and Fluid Inclusion Evidence from Carbonate Wall Rock Alteration. Mineralium Deposita, 35, 364-376.
https://doi.org/10.1007/s001260050247
Southwood, M. and Robison, J. (2016) Dolomite “Casts” and Epimorphs from Tsumeb. Namibia. Rocks & Minerals, 91, 334-345.
https://doi.org/10.1080/00357529.2016.1172174
Borg, G. (2009) The Influence of Fault Structures on the Genesis of Supergene Zinc Deposits. Society of Economic Geologists Special Publication, 14, 121-132.
https://doi.org/10.5382/SP.14.11
Pirajno, F., Kinnaird, F.A., Fallick, A.E., Boyce, A. and Petzel, V. (1992) A Preliminary Regional Sulphur Isotope Study of Selected Samples from Mineralised Deposits of the Damara Orogen, Namibia. Communications of the Geological Survey of Namibia, 8, 87-104.
Mapani, B., Rainer, E., Lothar, H., Gabi, S.K., Rosina, L., Mukuve, Z., Norwel, M., Shopala, U., Eline, N., William, A., Florence, S. and Maria, M. (2014) Contamination of Agricultural Products in the Surrounding of the Tsumeb Smelter Complex. Communications of the Geological Survey of Namibia, 15, 92-110.
Reid, A. and de Beer, J. (2016) Geophysics in the Tsumeb Area, Namibia. In: de Beer, J., Ed., The History of Geophysics in Southern Africa, African Sun Media, Stellenbosch, 452. https://doi.org/10.18820/9781920689810
Maiden, K. and Hughes, M. (2000) Mount Isa and Tsumeb: A Comparative Metallogenic Study. Communications of the Geological Survey of Namibia, 12, 191-202.
Allsopp, H.L. and Ferguson, J. (1970) Measurements Relating to the Genesis of the Tsumeb Pipe, South West Africa. Earth and Planetary Science Letters, 9, 448-453.
https://doi.org/10.1016/0012-821X(70)90012-9
Jones, R.W. (1985) Featured Mineral at the 1985 Tucson Show: Dioptase the Emerald Copper. Rocks & Minerals, 60, 5-8.
https://doi.org/10.1080/00357529.1985.11764359
Theron, S.J. (1994) The North Break Zone of the Late Precambrian Otavi Carbonate Platform Sequence in Namibia: Stratigraphic Setting, Petrography and Relationship with Tsumeb Cu-Pb-Zn Deposit. M.Sc Thesis, Rand Afrikaans University, Johannesburg.
Geier, B. and Ottemann, J. (1970) New Primary Vanadium-, Germanium-, Gallium-, and Tin-Minerals from the Pb-Zn-Cu-Deposit Tsumeb, South West Africa. Mineralium Deposita, 5, 29-40. https://doi.org/10.1007/BF00207004