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Journal articles on the topic 'Witbank (South Africa)'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 February 2022

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1

Worku, Zeleke. "Determinants of viability in junior mining companies in the Witbank region of South Africa." Problems and Perspectives in Management 15, no. 3 (2017): 119–27. http://dx.doi.org/10.21511/ppm.15(3).2017.10.

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An exploratory survey was undertaken in order to explore the underlying causes of bankruptcy in junior mining companies operating in the Witbank region of Mpumalanga Province based on data gathered from 120 highly experienced employees of junior mining companies operating at Witbank. Perception on barriers to productivity in junior mines was measured based on a scale introduced by Henisz, Dorobantu and Nartey (2014). Data was gathered on 24 socioeconomic variables. Data was analysed by performing logit analysis. The key finding of study was that 74.17% of respondents believed that their mines

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2

Trüe, A., N. Panichev, J. Okonkwo, and P. B. C. Forbes. "Determination Of The Mercury Content Of Lichens and Comparison To Atmospheric Mercury Levels In The South African Highveld Region." Clean Air Journal 21, no. 1 (2012): 19–25. http://dx.doi.org/10.17159/caj/2012/21/1.7075.

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The concentration of mercury vapour in ambient air is routinely determined using specialised instruments.As an economical alternative, actively pumped Hopcalite sorbent tubes can be used to trap atmosphericmercury, which is subsequently analysed by cold vapour atomic absorption spectroscopy. Plant materialsare also readily available in most regions and can be analysed to obtain information on time averagedatmospheric mercury levels.Lichen and tree bark samples were collected in the cities of Pretoria and Witbank, dried and acid digestedwith subsequent cold vapour atomic absorption spectroscopy

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3

Ingram, R. "Similarities in Pentecostal and traditional African culture: a positive potential in a context of urbanization and modernization." Verbum et Ecclesia 27, no. 1 (2006): 339–60. http://dx.doi.org/10.4102/ve.v27i1.141.

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This article reflects the findings of a study that was conducted by NOVA (a research organization for the alleviation of poverty) for CDE (the Centre of Development and Enterprise) in 2004 with regard to the potential contribution of Pentecostalism to the socio-economical well-being of people who are effected by the forces of modernization and urbanisation in South Africa. The case study was conducted among Pentecostal congregations in Witbank with special focus on congregations who serve people who have recently moved from the rural areas to Witbank. We made the interesting discovery that Pen

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4

Wagner, N. J., M. L. Mokwena, and A. Kolker. "Occurrence and probable source of chromium enrichment in Permian coals, South Africa." South African Journal of Geology 124, no. 3 (2021): 611–26. http://dx.doi.org/10.25131/sajg.124.0013.

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Abstract The trace element data pool for South African coals is limited. However, certain elements are reported as occurring in considerably higher concentrations than global average values. These elements include chromium (Cr), as well as manganese (Mn), cobalt (Co), and molybdenum (Mo), with Cr showing the most consistent enrichment. The aim of this study was to investigate the occurrence of Cr in South African coals sampled from five coalfields, and to assess the possible source of Cr. A total of 21 run-of-mine (ROM) coal samples from the Waterberg, Soutpansberg, Witbank, Highveld, and the

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5

Wheeler, Alexander, and Annette E. Götz. "Palynofacies patterns of the Highveld coal deposits (Karoo Basin, South Africa): Clues to reconstruction of palaeoenvironment and palaeoclimate." Acta Palaeobotanica 56, no. 1 (2016): 3–15. http://dx.doi.org/10.1515/acpa-2016-0004.

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Abstract The early Permian represents a crucial period of climate change in Gondwana. This climate signature is captured in the palynological record that represents the floral assemblage of the region. Palynofacies analysis of the No. 2 Coal Seam of the Highveld Coalfield provides a high-resolution picture of this climatic shift, as well as detailing the vegetation patterns and local environments. Core samples taken from two localities were studied with respect to the characteristics of the plant debris and the palynomorph assemblages to differentiate between regional and local signatures. At

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6

Bell, F. G., S. E. T. Bullock, T. F. J. Hälbich, and P. Lindsay. "Environmental impacts associated with an abandoned mine in the Witbank Coalfield, South Africa." International Journal of Coal Geology 45, no. 2-3 (2001): 195–216. http://dx.doi.org/10.1016/s0166-5162(00)00033-1.

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7

Holland, M. J., A. B. Cadle, R. Pinheiro, and R. M. S. Falcon. "Depositional environments and coal petrography of the Permian Karoo Sequence: Witbank Coalfield, South Africa." International Journal of Coal Geology 11, no. 2 (1989): 143–69. http://dx.doi.org/10.1016/0166-5162(89)90003-7.

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8

Laisani, John, and Ademola Oluborode Jegede. "Impacts of Coal Mining in Witbank, Mpumalanga Province of South Africa: An Eco-Legal Perspective." Journal of Reviews on Global Economics 8 (December 31, 2019): 1586–97. http://dx.doi.org/10.6000/1929-7092.2019.08.142.

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9

Grodner, M. "A Regional Scale 3-D Model of the Witbank Coalfield, Northern Karoo Basin, South Africa." South African Journal of Geology 106, no. 4 (2003): 249–64. http://dx.doi.org/10.2113/106.4.249.

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10

Moroeng, Ofentse M., Nicola J. Wagner, D. Jaco Brand, and R. James Roberts. "A Nuclear Magnetic Resonance study: Implications for coal formation in the Witbank Coalfield, South Africa." International Journal of Coal Geology 188 (March 2018): 145–55. http://dx.doi.org/10.1016/j.coal.2018.02.010.

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11

Bullock, S. E. T., and F. G. Bell. "Some problems associated with past mining at a mine in the Witbank coalfield, South Africa." Environmental Geology 33, no. 1 (1997): 61–71. http://dx.doi.org/10.1007/s002540050225.

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12

Olaleye, Abiola O., and Andy K. Beke. "Survival of smear-positive multidrug resistant tuberculosis patients in Witbank, South Africa: A retrospective cohort study." Infectious Diseases 48, no. 6 (2016): 422–27. http://dx.doi.org/10.3109/23744235.2016.1153806.

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13

Bell, F. G., T. F. J. Hälbich, and S. E. T. Bullock. "The effects of acid mine drainage from an old mine in the Witbank Coalfield, South Africa." Quarterly Journal of Engineering Geology and Hydrogeology 35, no. 3 (2002): 265–78. http://dx.doi.org/10.1144/1470-9236/00121.

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14

Campbell, Maléne, Verna Nel, and Thulisile Mphambukeli. "A thriving coal mining city in crisis? The governance and spatial planning challenges at Witbank, South Africa." Land Use Policy 62 (March 2017): 223–31. http://dx.doi.org/10.1016/j.landusepol.2016.12.027.

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15

Cairncross, B., R. J. Hart, and J. P. Willis. "Geochemistry and sedimentology of coal seams from the Permian Witbank Coalfield, South Africa; a means of identification." International Journal of Coal Geology 16, no. 4 (1990): 309–25. http://dx.doi.org/10.1016/0166-5162(90)90056-5.

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16

Van Niekerk, Elna. "Visual interpretation of ASTER satellite data, Part II: Land use mapping in Mpumalanga,South Africa." Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 26, no. 4 (2007): 247–64. http://dx.doi.org/10.4102/satnt.v26i4.137.

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Since the initiation in 1960 of the era of satellite remote sensing to detect the different characteristics of the earth, a powerful tool was created to aid researchers. Many land-use studies were undertaken using Landsat MSS, Landsat TM and ETM, as well as SPOT satellite data. The application of these data to the mapping of land use and land cover at smaller scales was constrained by the limited spectral and/or spatial resolution of the data provided by these satellite sensors. In view of the relatively high cost of SPOT data, and uncertainty regarding the future continuation of the Landsat s

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17

Coetzee, J. P., G. J. Bredenkamp, and N. van Rooyen. "Plant communities of the Sub-humid Cool Temperate Mountain Bushveld of the Pretoria–Witbank–Heidelberg area, South Africa." South African Journal of Botany 61, no. 3 (1995): 114–22. http://dx.doi.org/10.1016/s0254-6299(15)30497-x.

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18

Sakala, E., F. Fourie, M. Gomo, and H. Coetzee. "GIS-based groundwater vulnerability modelling: A case study of the Witbank, Ermelo and Highveld Coalfields in South Africa." Journal of African Earth Sciences 137 (January 2018): 46–60. http://dx.doi.org/10.1016/j.jafrearsci.2017.09.012.

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19

Moroeng, Ofentse M., Vimbai Mhuka, Mathew M. Nindi, R. James Roberts, and Nicola J. Wagner. "Comparative study of a vitrinite-rich and an inertinite-rich Witbank coal (South Africa) using pyrolysis-gas chromatography." International Journal of Coal Science & Technology 6, no. 4 (2019): 621–32. http://dx.doi.org/10.1007/s40789-019-00274-3.

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Abstract This study aims to compare iso-rank vitrinite-rich and inertinite-rich coal samples to understand the impact of coal-forming processes on pyrolysis chemistry. A medium rank C bituminous coal was density-fractionated to create a vitrinite-rich and an inertinite-rich sub-sample. The vitrinite-rich sample has 83 vol% total vitrinite (mineral-matter-free basis), whereas the inertinite-rich counterpart has 66 vol% total inertinite. The vitrinite-rich sample is dominated by collotelinite and collodetrinite. Fusinite, semifusinite, and inertodetrinite are the main macerals of the inertinite-

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20

Cairncross, B., and A. B. Cadle. "Palaeoenvironmental control on coal formation, distribution and quality in the Permian Vryheid Formation, East Witbank Coalfield, South Africa." International Journal of Coal Geology 9, no. 4 (1988): 343–70. http://dx.doi.org/10.1016/0166-5162(88)90031-6.

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21

Pone, J. Denis N., Kim A. A. Hein, Glenn B. Stracher, et al. "The spontaneous combustion of coal and its by-products in the Witbank and Sasolburg coalfields of South Africa." International Journal of Coal Geology 72, no. 2 (2007): 124–40. http://dx.doi.org/10.1016/j.coal.2007.01.001.

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22

Moroeng, Ofentse M., R. James Roberts, John P. Bussio, and Roger D. Dixon. "Self-heating Potential of Coal Inferred from Elemental Data – A Case Study of the Witbank Coalfield of South Africa." Energy & Fuels 31, no. 11 (2017): 11811–17. http://dx.doi.org/10.1021/acs.energyfuels.7b02109.

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23

ENGELBRECHT, J., M. R. INGGS, and G. MAKUSHA. "DETECTION AND MONITORING OF SURFACE SUBSIDENCE ASSOCIATED WITH MINING ACTIVITIES IN THE WITBANK COALFIELDS, SOUTH AFRICA, USING DIFFERENTIAL RADAR INTERFEROMETRY." South African Journal of Geology 114, no. 1 (2011): 77–94. http://dx.doi.org/10.2113/gssajg.114.1.77.

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24

Moroeng, Ofentse M., Jonathan M. Keartland, R. James Roberts, and Nicola J. Wagner. "Characterization of coal using electron spin resonance: implications for the formation of inertinite macerals in the Witbank Coalfield, South Africa." International Journal of Coal Science & Technology 5, no. 3 (2018): 385–98. http://dx.doi.org/10.1007/s40789-018-0212-7.

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25

Falcon, R. M. S. "Macro- and micro-factors affecting coal-seam quality and distribution in southern Africa with particular reference to the No. 2 seam, Witbank coalfield, South Africa." International Journal of Coal Geology 12, no. 1-4 (1989): 681–731. http://dx.doi.org/10.1016/0166-5162(89)90069-4.

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26

Coetzee, J. P., G. J. Bredenkamp, and N. van Rooyen. "Phytosociology of the wetlands of the Ba and Ib land types in the Pretoria-Witbank-Heidelberg area of the Transvaal, South Africa." South African Journal of Botany 60, no. 1 (1994): 61–67. http://dx.doi.org/10.1016/s0254-6299(16)30661-5.

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27

Wheeler, Alexander, and Annette E. Götz. "Palynofacies as a tool for high-resolution palaeoenvironmental and palaeoclimatic reconstruction of Gondwanan post-glacial coal deposits: No. 2 Coal Seam, Witbank Coalfield (South Africa)." Palaeobiodiversity and Palaeoenvironments 97, no. 2 (2016): 259–71. http://dx.doi.org/10.1007/s12549-016-0248-x.

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28

Modiga, Agnes, Ndabenhle Sosibo, Nirdesh Singh, and Getrude Marape. "A Feasibility Study Evaluating the Efficiency of Fine Coal Washing Using Gravity Separation Methods." Academic Research Community publication 2, no. 4 (2019): 497. http://dx.doi.org/10.21625/archive.v2i4.394.

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Coal mining and washing activities in South Africa often lead to the generation of fine and ultra-fine coal which is in most cases discarded due to high handling and transportation costs. Studies conducted revealed that a large quantity of these fines have market acceptable calorific values and lower ash contents. In order to reduce fines discarded, processes have been developed to re-mine and process the fine coal discards with the aim of improving the calorific value, adding them to coarse washed coal to increase the yield as well as pelletizing the fines

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29

Moroeng, Ofentse M., Nicola J. Wagner, Grant Hall та R. James Roberts. "Using δ15N and δ13C and nitrogen functionalities to support a fire origin for certain inertinite macerals in a No. 4 Seam Upper Witbank coal, South Africa". Organic Geochemistry 126 (грудень 2018): 23–32. http://dx.doi.org/10.1016/j.orggeochem.2018.10.007.

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30

Glasspool, Ian J. "A review of Permian Gondwana megaspores, with particular emphasis on material collected from coals of the Witbank Basin of South Africa and the Sydney Basin of Australia." Review of Palaeobotany and Palynology 124, no. 3-4 (2003): 227–96. http://dx.doi.org/10.1016/s0034-6667(02)00252-x.

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31

Glasspool, Ian J. "Hypautochthonous–allochthonous coal deposition in the Permian, South African, Witbank Basin No. 2 seam; a combined approach using sedimentology, coal petrology and palaeontology." International Journal of Coal Geology 53, no. 2 (2003): 81–135. http://dx.doi.org/10.1016/s0166-5162(02)00193-3.

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32

"98/02488 Some problems associated with past mining at a mine in the Witbank coalfield, South Africa." Fuel and Energy Abstracts 39, no. 3 (1998): 224. http://dx.doi.org/10.1016/s0140-6701(98)80674-7.

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33

Habte, Temnewo M., Charles Bondo, and Lushiku Nkombua. "Association between social support and viral load in adults on highly active antiretroviral therapy – Witbank, South Africa." South African Family Practice 62, no. 1 (2020). http://dx.doi.org/10.4102/safp.v62i1.5139.

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34

"98/02423 The environmental impacts associated with a coal mine in the Witbank Coalfield, Republic of South Africa." Fuel and Energy Abstracts 39, no. 3 (1998): 219. http://dx.doi.org/10.1016/s0140-6701(98)80610-3.

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35

Sakala, E., F. Fourie, M. Gomo, and G. Madzivire. "Natural Attenuation of Acid Mine Drainage by Various Rocks in the Witbank, Ermelo and Highveld Coalfields, South Africa." Natural Resources Research, July 9, 2020. http://dx.doi.org/10.1007/s11053-020-09720-5.

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36

Matlala, Itumeleng V., Ofentse M. Moroeng, and Nicola J. Wagner. "Macromolecular structural changes in contact metamorphosed inertinite-rich coals from the No. 2 Seam, Witbank Coalfield (South Africa): Insights from petrography, NMR and XRD." International Journal of Coal Geology, September 2021, 103857. http://dx.doi.org/10.1016/j.coal.2021.103857.

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37

Sithebe, Kenneth K. "MAY THE ACCUSED (MINISTER OF SAFETY AND SECURITY) PLEASE RISE BEFORE THE COURT: POLICE LIABILITY VERSUS PARTIAL IMMUNITY." Pretoria Student Law Review, no. 2 (2008). http://dx.doi.org/10.29053/pslr.v2i.2174.

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This article is written in light of the increasing number of civil actions brought against the South African Police Service (SAPS). Among the most recent cases is that of a Witbank woman and her daughter who instituted an action for damages because an escaped prisoner shot and killed the woman’s husband with a service pistol that the prisoner had stolen from the police. Another related claim is that of Mr Gerber who was shot during an armed robbery at his home in a security complex. Mr Gerber claimed R5.6 million from the Minister of Safety and Security for failing to protect South African cit

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