A research report submitted to the Faculty of Humanities, University of the Witwatersrand, Johannesburg, South Africa, in partial fulfilment of the requirements for the award of the of Masters of Arts Degree in Labour and Development, Economic Policy, Globalisation and Labour (Labour Policy and Globalisation). Johannesburg, 2016 / Zambia has been implementing economic liberalisation policies at the advice of the IMF and the World Bank, to reverse years of economic decline that began with the commodity crisis of the 1970s. As a strategy for economic growth, these included, the deregulation of foreign investment, removal of currency controls, trade liberalisation, decontrolling prices, cutting food subsidies, reduction of state control in running the economy and privatization of state run companies. The rapid implementation of these measures by the Zambian government has seen a change in employment trends in the mining industry from permanent employment to casualisation of labour.These measures have resulted into negative social and economicconsequences on the lives of the casualised mine workers such as job insecurity, poor health and safety standards, lack of protection and union representation, poor remuneration, lack of pension,and other forms of exploitation. Despite booms and busts in the copper price, employment levels have been drastically dropping especially among the permanent mine workers as a cost cutting measure. The role of the state in the running of the mines which Zambia has depended on since independence has diminished significantly and the state is increasingly succumbing to the dictates of the mining Trans-National Corporations (TNCs).The study which was conducted among casualised/contract rock ore drillers at Mopani Copper Mines Plc reaffirms arguments by previous researchers that economic liberalisation has not achieved the high expectations that Zambians wished for and that there is need for government and trade unions to protect the welfare and working conditions of these casualised mine workers who have become a new set of underclass. Through in-depth interviews, observations and documentary analysis, this research has brought to light the social and economic experiences of casualised/contract rock ore drillers at Mopani Copper Mines Plc and questions whether Zambian mine workers were better off when the mines were being run by the state than is currently the case under TNCs. / MT2017

Dissertation submitted to the Faculty of Humanities of the University of the Witwatersrand Department of Sociology/ Global Labour University, in fulfilment of the requirements for the Degree of MA Labour and Development, Labour Policy &Globalization, 2015 / This study investigates the environmental costs of copper mining in a mining Township of Kankoyo in Mufulira, Zambia. It investigates the ways in which the mine workers in this community experience, assess and respond to the pervasive environmental degradation caused by mining operations. The study indicates that the people of Kankoyo have an implied understanding (physical experiences e.g. smoke, dust etc.) of the risks in their environment but lack explicit knowledge (long term effects). Second, the working class are now in an awkward position between participating in activism against the company that pollutes their environment and the need to keep their jobs. Third, experiences with a polluted environment have divided the Kankoyo between those who engage in community mobilisation (the unemployed) and those who don’t because they want to protect their jobs (the mine workers). As experiences take a gender dimension, women tend to suffer more due to the gender roles they play. Fourth, given their helplessness, the people of Kankoyo now plead for social services not in social justice terms but as a compensation for the pollution suffered. The core conclusion is that workers understand environmental threats but: (a) they have little awareness of the long-term effects and (b) they tend to minimise them. For these workers their economic security i.e. employment, is primary and they prioritise the immediate over the longer term, thus (c) they have not responded to this issue in an organised way, rather their unions tend to focus on traditional workplace/pay issues. In addition, state and environmental organisations’ responses are inadequate. Consequently, the community is forced to accept the negative environmental impacts on their lives and the environment. Therefore, the study makes the following arguments: (a) Mineral resource led development in Zambia has failed. Instead, it has led to devastating environmental and health impacts on the nearby communities; (b) that the provision of social services and housing to the mine workers, and revenue to the government only served to divert attention from the long term and ongoing environmental degradation that has taken place overtime. The slug dams, the accumulated dust heaps, leach plants and long term environmental degradation on the copperbelt attest to this; (c) that the corporate policy on housing only served the interests of the mining companies by stabilising the workforce without regard for the arising health impacts; and; (d) privatisation has increased the vulnerability of the working class to environmental costs of mining. In the end, from the shattered hopes of a good life ‘modernisation’ emerges in the words of one respondent a ‘development’ of ‘environmental suffering’, as Kankoyo remains a ‘bomb waiting to explode’. / XL2018

The Lumwana copper orebody is situated 170 miles west of the Copperbelt. It is stratiform and occurs in schists regarded as part of the Katanga System older than the lower-most Copperbelt quartzite. The discovery of copper at the Lumwana Prospect was a text book example of the success of the R.S.T. Mines Services Limited prospecting techniques. These include partial geochemical analyses of soil and drainage samples, pitting, drilling and radiometric, self potential, magnetic, resistivity and induced polarization methods of geophysical exploration. The copper-bearing formations at the Lumwana Prospect occur in the inverted limb of a great recumbent fold within the Mombezhi Dome. Three periods of folding are recognized from the study of regional foliations and lineation, and the attitude of fold elements in individual folds. Each period of folding is regarded as a major pulse in the Lufilian Orogeny. The first-formed folds are isoclinal and have axial planes which strike at 160°, and dip southwest at 15°; the plunge is 11° in a direction 212° . The formation of first folds was accompanied by thrust faulting and the development of nappe structures including the great Lumwana recumbent fold. The second folds have axial planes which strike at 170° and dip west at 44°, the plunge is 12° in a direction of 192°, and the folds tend to be overturned. The third folds cut across the earlier folds at variable angles, they are overturned to the north and have axial planes which dip gently to the south. The formation of third folds was such that northward-acting stress was rotated from southeast to southwest, and relaxation of this stress resulted in the development in competent strata of joints which strike at 120° and dip steeply. At the Lumwana Prospect the northward-acting Lufilian stress is thought to have been resolved into eastward acting stress during first and second folding as a result of compression near the centre of the Lufilian Arc. The third folds are the normal Lufilian folds sub-parallel to the Lufilian Arc. Normal faulting and intrusion of gabbro along planes of these faults and the earlier thrust faults eccurred in a post-Lufilian tensional phase. In recent times warping of the formations at Lumwana has occurred on east-west axes. Statistical examination of chemical data on fifty-four composite samples of mineralized rock from drill-holes reveals that the distribution of copper, iron and sulphur is related to that of potash and soda. These relationships can be explained on sedimentological grounds since the examination of the distribution of soda and potash in these and other horizons yields no evidence of metasomatism in the mineralized horizon. Intrusive into the mineralized schists, though not found in the ore, are thin amphibolites and a large serpentinite which contains relict olivine and bronzite. This is the first recorded occurrence of ultrabasic rocks in the Lower Roan Group of the Katanga System in this part of Zambia. Study of all formations at the Lumwana Prospect reveals that they have been metamorphosed in the epidote-amphibolite facies of regional metamorphism. Mineral assemblages indicative of the amphibolite facies are found in sheared rocks, and metamorphism in competent parts of the Upper Roan-Mwashia has been confined to the greenschist facies. Temperatures of metamorphism are estimated to have been between 250° and 280°C, and pressures are likely to have exceeded 6 kilobars. Evidence of metasomatism, absent in the Lower Roan, is found in the examination of the Upper Roan-Mwashia formations. Metasomatism includes scapolitization and albitization and is related to the intrusion of gabbro into these sediments, but does not necessarily involve exogenous material. The sulphide minerals identified are bornite, chalcocite, digenite, covellite, chalcopyrite, cubanite, valleriite, carrollite, pyrite and pyrrhotite. Intergrowths of these minerals have resulted from metamorphism at temperatures slightly in excess of 235°C. The copper sulphides are distributed zonally in the orebody with chalcocite- bornite ore where the mineralized schist is thin, and chalcopyrite- cubanite-pyrite ore where it is thick. Vertically the body contains horizons with sulphides relatively rich in copper at the top and bottom, and an intermediate zone with sulphides leaner in copper. This zonal distribution is considered to be evidence for syngenetic deposition of copper during successive cycles of transgression and regression. Ore genesis at Lumwana is closely related to genesis of the Copperbelt and Katanga orebodies. The Zambia-Katanga province is considered to have been enriched in copper epigenetically prior to the formation of the present-day orebodies. Reworking of these cupriferous rocks and some early-formed syngenetic deposits of which Lumwana is one, is considered to have played a major role in producing the present-day copper orebodies.

The Kansanshi Cu-Au deposit located in the Domes region of the North West province of Zambia is characterised by structurally controlled high angle veins and associated alteration halos. The northwest trending Kansanshi antiform flanks the Solwezi syncline to the north and hosts the Kansanshi deposit and consists of tillites and metasedimentary rocks. Mineralisation is associated with Neoproterozoic Pan African deformation events experienced during the formation of the Lufilian fold belt; however recent findings confirm that structures in the form of reverse and normal faults and drag folds are critical controls on mineralisation within the deposit, Main pit in particular. Low angle faults occurring below the current pit are believed to have served as major fluid pathways during mineralisation. Age dating data from the Kansanshi deposit suggest that mineralisation took place between 512 and 503 Ma indicating that the event was associated with metamorphism. Two types of alteration are dominant within the Main pit (Kansanshi deposit) with the type and intensity of alteration being largely controlled by lithological units. Albite alteration occurs dominantly in phyllites and schists whereas dolomitisation is prevalent in calcareous units. Alteration is associated with mineralisation, and therefore is used as a condition for predicting vein or disseminated mineralisation. The high Au tenor at Kansanshi can be attributed to gold grains occurring in association with melonite (NiTe₂) and microfractured pyrite intergrown with chalcopyrite in sulphide and quartz dominated veins and veinlets. Analysis of gold grade distribution within the Main pit shows a clear concentration of the element along the major north-south trending structures like the 4800 and 5400 zones, possibly through supergene enrichment in the oxide-transition-sulphide zones. It is imperative that exploration for Kansanshi-type deposits will require geochemical and geophysical studies, understanding of the geology of an area to identify the three lithostratigraphic units (red beds, evaporites and reducing strata).

Copper is the mainstay of the Zambian economy. From the inception of mining activities in the 1920s, it has accounted for the majority of the country‟s exports and foreign earnings. However, most people are of the view that its contribution to development programmes is disproportionate, well below their expectations. They attribute the contemporary failure to copper price volatility, international market forces, ownership, government ineptitude and the consequences of neoliberalism. Given the large expense involved in establishing and running copper mines, the country depends heavily on foreign capital. A big proportion of the copper that is mined in Zambia is sold in an unprocessed state denying the country additional revenue. This study assesses both the role of copper mining in the economic history of Zambia and its role in contemporary development as perceived and understood by current university-educated job market entrants on the Zambian Copperbelt, their educators and other commentators with work experience in the sector. / Theses (M.Dev.Studies)--University of KwaZulu-Natal, Durban, 2014.

Kansanshi mine sulphide ore circuit did not achieve target flotation recovery in 2016, hence it was deemed necessary to carry out a research aimed at optimizing this circuit. The objective of the research was to optimise the Kansanshi milling and flotation circuit processing a copper sulphide ore. In line with this, samples were obtained around the circuit and processed in the laboratory for moisture content, slurry concentration, particle size distribution, and flotation response. This information was then used to build a computer-based model of the Kansanshi milling and flotation circuit. This was done in MODSIM®, a software package specialising in the design and simulation of mineral processing operations. After careful appraisal, appropriate models were selected for the semi autogenous grinding (SAG) and ball mills, SAG mill discharge screen, hydrocyclones, pebble crusher, and the flotation cells. The calibrated model was then used to simulate the effects of key operating parameters on flotation recovery. Analysis using the attainable region technique revealed that the SAG mill feed-rate should be adjusted from 1719 tph to 2090 tph. This would lead to a better utilisation of the pebble crusher that can process 358 tph of pebbles from the current 198 tph. From the simulation work, it was established that rougher flotation recovery can be improved from the current 80.0 % to 82.3 %. The technoeconomic benefits of the proposition are yet to be investigated. Findings from the research concluded that the milling circuit optimum operating parameter; which generated a final product falling predominantly in the range - 150 +38 μm were SAG and ball mills conditions of ball sizes 200 and 40mm respectively, ball mill ball filling 32% and rotational speed between 75 and 80% for both SAG and ball mills. The optimum hydrocyclone feed slurry concentration was found to be 62% solids. Additionally, the SAG mill discharge screen aperture size of 6 mm was the optimum. It must be noted that slurry concentration did not show any impact on both the SAG and ball mills performance. The SAG mill ball filling did not show any significant improvement on performance. / College of Engineering, Science and Technology / M. Tech. (Chemical Engineering)