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Gutzmer, J., Beukes, N.J. and Yeh, H-W. (1997). Metasomatic and supergene fault-controlled alteration of Early Proterozoic sedimentary manganese ore at Mamatwan Mine, Kalahari manganese field, South Africa. South African Journal of Geology, 100, 53–71.

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Year1997
Original EntryGutzmer, J., Beukes, N.J. and Yeh, H-W. (1997). Metasomatic and supergene fault-controlled alteration of Early Proterozoic sedimentary manganese ore at Mamatwan Mine, Kalahari manganese field, South Africa. South African Journal of Geology, 100, 53–71.
Mindat Ref. ID16177623Long-form Identifiermindat:1:5:16177623:7
GUID0
Full ReferenceGutzmer, J., Beukes, N.J. and Yeh, H-W. (1997). Metasomatic and supergene fault-controlled alteration of Early Proterozoic sedimentary manganese ore at Mamatwan Mine, Kalahari manganese field, South Africa. South African Journal of Geology, 100, 53–71.
Plain TextGutzmer, J., Beukes, N.J. and Yeh, H-W. (1997). Metasomatic and supergene fault-controlled alteration of Early Proterozoic sedimentary manganese ore at Mamatwan Mine, Kalahari manganese field, South Africa. South African Journal of Geology, 100, 53–71.

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Kalahari manganese field, John Taolo Gaetsewe District Municipality, Northern Cape, South Africa

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Gutzmer, J., Beukes, N.J., Yeh, H-W. (1997) Metasomatic and supergene fault-controlled alteration of Early Proterozoic sedimentary manganese ore at Mamatwan Mine, Kalahari manganese field, South Africa. South African Journal of Geology: 100: 53-71.
Gutzmer, J., Beukes, N. J. (1995) Fault-controlled metasomatic alteration of early Proterozoic sedimentary manganese ores in the Kalahari manganese field, South Africa. Economic Geology, 90 (4) 823-844 doi:10.2113/gsecongeo.90.4.823
Beukes, N.J., Burger, A.M., Gutzmer, J. (1995) Fault-controlled hydrothermal alteration of Palaeoproterozoic manganese ore in Wessels Mine, Kalahari manganese field. South African Journal of Geology: 98(4): 430-451. ( https://journals.co.za/doi/pdf/10.10520/EJC-9437daaea )
Gutzmer, J.; Du Plooy, A.P.; Beukes, N.J. (2012) Timing of supergene enrichment of low-grade sedimentary manganese ores in the Kalahari Manganese Field, South Africa. Ore Geology Reviews, 47. doi:10.1016/j.oregeorev.2012.04.003
Gutzmer, J. and Beukes, N.J. (2000). Asbestiform manjiroite and todorokite from the Kalahari manganese field, South Africa. South African Journal of Geology, 103, 163–174.
Gutzmer, J. and Beukes, N.J. (1996). Mineral paragenesis of the Kalahari manganese field, South Africa. Ore Geology Reviews, 11, 405–428.
Harawa, E. T. (2016). Mineralogy and geochemistry of structurally-controlled metasomatic alteration of carbonate-rich manganese ore at Mamatwan Mine, Kalahari Manganese Field (Masters thesis, Department of Geology, Rhodes University).
Coetzee, L.L., Gutzmer, J., Smith, A.J.B., Beukes, N.J. (2024) Mineralogy and mineral paragenesis of the Palaeoproterozoic manganese ores of the Avontuur deposit of the Kalahari Manganese Field, South Africa. South African Journal of Geology, 127 (1) 31-54 doi:10.25131/sajg.127.0016
Nel, C.J., Beukes, N.J. De Villiers, J.P.R. (1986) The Mamatwan manganese mine of the Kalahari manganese field. In: Anhaeusser, C.R., Maske, S. (editors) Mineral Deposits of Southern Africa. Geological Society of South Africa, Johannesburg: 963-978.
Miyano, T. and Beukes, N.J. (1987). Physicochemical environments for the formation of quartz-free manganese oxide ores from the Early Proterozoic Hotazel Formation, Kalahari manganese field, South Africa. Economic Geology, 82, 706–718.
Cairncross, B., Beukes, N., and Gutzmer, J., (1997), The Manganese Adventure, The South African Manganese Fields. Associated Ore & Metal Corporation Limited, Johannesburg, Republic of South Africa.
 
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