abstract of gold mining in south africa

abstract of gold mining in south africa

  • The impact of gold mining on the Witwatersrand on the

    The Witwatersrand has been subjected to geological exploration, mining activities, parallel industrial development and associated settlement patterns over the past century The gold mines brought with them not only development, employment and wealth, but also the most devastating war in the history of South Africa, civil unrest, economical inequality, social uprooting, pollution, negativeAbstract The Witwatersrand region of South Africa is famous for its gold production and a major conurbation, centred on Johannesburg, has developed as a result of mining activity A study was undertaken of surface and ground water in a drainage system in this area Soils were also analysed from a site within the mining districtAcid mine drainage arising from gold mining activity inThe New Consort Gold Mine in the Palaeo to Mesoarchaean Barberton greenstone belt, South Africa is one of the oldest recognized orogenic gold deposits on Earth The gold mineralization is hosted by discrete mylonitic units that occur at, or close to, the contact between the mafic and ultramafic volcanic rocks of the c 3,280 Ma Onverwacht Group and the mainly metasedimentary rocks of theThe New Consort Gold Mine, Barberton greenstone belt

  • CRATONIC EXTENSION AND ARCHAEAN GOLD

    Gold mineralisation in the worldclass ShebaFairview mining district in the Barberton greenstone belt, South Africa, occurs along a fracture network that is arranged in overlapping Riedel, Pshear and antiRiedel arrays on 10m and 100m scalesMining is a source of extraordinary wealth, but its benefits often do not accrue to the workers and communities most involved This paper presents two casePlatinum and Gold Mining in South Africa: The Context ofSouth Africa Department of Minerals and Energy (2007) South Africa is estimated, by the US Geological Survey, to have 6000 metric tons of gold reserves A full 95% of South Africa's gold mines are underground operations, reaching depths of over 25 miles Coupled with declining grades, increased depth of mining, and a slide in theEconomic Impacts of Gold Production in South Africa

  • Acid mine drainage arising from gold mining activity in

    Abstract The Witwatersrand region of South Africa is famous for its gold production and a major conurbation, centred on Johannesburg, has developed as a result of mining activity A study was undertaken of surface and ground water in a drainage system in this areaAbstract South Africa’s mining towns were established by mining companies mostly after World War II The workforce lived in companyowned or privatelyowned houses, or highdensity compounds Since the demise of apartheid, South African government policy for these towns has promoted integrated mining communities and homeownershipMining towns and urban sprawl in South Africa During more than a century of gold mining in South Africa large amounts of tailings were produced, which now cover vast areas in densely populated regions These dumps contain elevated levels of uranium and other toxic heavy metals associated with gold in the mined ore Largescale extraction of uranium from auriferous ore only took place during the cold war, leaving tailings with high uraniumUranium pollution of South African streams – An overview

  • Analysis of exceptionally large tremors in two gold mining

    An investigation of ground motion, recorded using broadband, wide dynamicrange digital seismographs, of large mine tremors from two South African mining districts with different geologic settings, reveals some essential differences in both seismic source and ground motion parameters In the Klerksdorp district where the strata are offset by major throughgoing normal faults, the largestThe Witwatersrand has been subjected to geological exploration, mining activities, parallel industrial development and associated settlement patterns over the past century The gold mines brought with them not only development, employment and wealth, but also the most devastating war in the history of South Africa, civil unrest, economical inequality, social uprooting, pollution, negativeThe impact of gold mining on the Witwatersrand on theThe New Consort Gold Mine in the Palaeo to Mesoarchaean Barberton greenstone belt, South Africa is one of the oldest recognized orogenic gold deposits on Earth The gold mineralization is hosted by discrete mylonitic units that occur at, or close to, the contact between the mafic and ultramafic volcanic rocks of the c 3,280 Ma Onverwacht Group and the mainly metasedimentary rocks of theThe New Consort Gold Mine, Barberton greenstone belt

  • Economic Impacts of Gold Production in South Africa

    South Africa Department of Minerals and Energy (2007) South Africa is estimated, by the US Geological Survey, to have 6000 metric tons of gold reserves A full 95% of South Africa's gold mines are underground operations, reaching depths of over 25 miles Coupled with declining grades, increased depth of mining, and a slide in thethe three principal mining sectors interms ofthe aggregate (economywide) of the eight principal mining industries of the South African economy Gold mining was distinguished from other mining sectors by virtue of its strong and sustained decline in output, while other sectors either increased their volume of output, maintained constantThe Role of Mining in the South African EconomyAbstract The Witwatersrand region of South Africa is famous for its gold production and a major conurbation, centred on Johannesburg, has developed as a result of mining activity A study was undertaken of surface and ground water in a drainage system in this areaAcid mine drainage arising from gold mining activity in

  • The environmental impact of gold mine tailings footprints

    Gold mining in South Africa resulted in vast volumes of tailings, which have been deposited in impoundments Poor management of most of the tailings dams resulted in the escape of seepage, adversely affecting soils and water quality Some tailings dams have been partially or completely reclaimed leaving contaminated footprints These zones pose a serious threat to the underlyingAcid mine drainage is recognized as one of the more serious environmental problems in the mining industry Acid mine drainage is a major problem on coal and gold mines throughout the world and in South Africa, the main focus of this study, is no exception Various studies that have been undertaken in South Africa have shown that the water decanting from the mine companies is highly acidic andImpacts of mining on water resources in South Africa: AAn investigation of ground motion, recorded using broadband, wide dynamicrange digital seismographs, of large mine tremors from two South African mining districts with different geologic settings, reveals some essential differences in both seismic source and ground motion parameters In the Klerksdorp district where the strata are offset by major throughgoing normal faults, the largestAnalysis of exceptionally large tremors in two gold mining

  • Mining in Africa World Bank

    11 Environmental and Health Issues in Gold Mining Areas 9 12 What Is a Mining Community? 12 13 How Remote Sensing Informs Agricultural Production 21 31 Artisanal and SmallScale Mining 70 41 SmallScale Mining Poses Challenges for Identifying Impacts of LargeScale Mines 99 42 Effect of a Mine Opening on Household Access to1 Introduction Disasters such as at the Kinross gold mine in 1986 in which 177 miners died have focused attention on the hazards faced by underground miners in South Africa But disasters are merely the tip of an iceberg, grim punctuations of the ongoing accident toll on South African minesTrends and causes of fatalities in South African minesThe New Consort Gold Mine in the Palaeo to Mesoarchaean Barberton greenstone belt, South Africa is one of the oldest recognized orogenic gold deposits on Earth The gold mineralization is hosted by discrete mylonitic units that occur at, or close to, the contact between the mafic and ultramafic volcanic rocks of the c 3,280 Ma Onverwacht Group and the mainly metasedimentary rocks of theThe New Consort Gold Mine, Barberton greenstone belt

  • Economic Impacts of Gold Production in South Africa

    South Africa Department of Minerals and Energy (2007) South Africa is estimated, by the US Geological Survey, to have 6000 metric tons of gold reserves A full 95% of South Africa's gold mines are underground operations, reaching depths of over 25 miles Coupled with declining grades, increased depth of mining, and a slide in theGold occurs in a variety of ancient geological environments in South Africa, the most wellknown being the unique Witwatersrand Basin in the central part of the Kaapvaal Craton Outside of the Witwatersrand Basin significant quantities of gold have been recovered from Archaean greenstone belts of the 3500 to 2700 Ma Kaapvaal Craton as well asGold on the Kaapvaal Craton, outside the Witwatersrandthe three principal mining sectors interms ofthe aggregate (economywide) of the eight principal mining industries of the South African economy Gold mining was distinguished from other mining sectors by virtue of its strong and sustained decline in output, while other sectors either increased their volume of output, maintained constantThe Role of Mining in the South African Economy

  • Seismicity in Deep Gold Mines of South Africa

    Abstract We have studied induced seismicity associated with five deep gold mines located in the Far West Rand district, Republic of South Africa, focusing on the digital data recorded from January 1994 until February 2000 by inmine arrays of threecomponent geophones The observed seismicity, which exceeds1,000 eventsABSTRACT: South Africa hosts two of the world’s richest ore bodies, the goldbearing conglomerates of the Witwatersrand Basin and the platinumbearing pyroxenites of the Bushveld Complex Both ore bodies extend to depths of several kilometers Gold was discovered near presentday Johannesburg in 1886 MininginducedMitigating the risk of rockbursts in the deep hard rockAn investigation of mine closure : gold mine case studies on the East Rand in South Africa This research is on mines that struggle to obtain closure from the state departments The closure process at the footprints of five Tailings Storage Facilities (TSFs) of a South African gold mine was investigated They are situated in the GermistonAn investigation of mine closure : gold mine case studies

  • Impacts of mining on water resources in South Africa: A

    Acid mine drainage is recognized as one of the more serious environmental problems in the mining industry Acid mine drainage is a major problem on coal and gold mines throughout the world and in South Africa, the main focus of this study, is no exception Various studies that have been undertaken in South Africa have shown that the water decanting from the mine companies is highly acidic andIntroduction Mining towns are a common phenomenon in South Africa Historically, housing in these towns consisted of privately owned houses (exclusively for white miners, until the mid1980s), company owned houses and, predominantly until the early 2000s, high density compounds for black miners Today the mining towns are of various kindsMining towns and urban sprawl in South Africa 11 Environmental and Health Issues in Gold Mining Areas 9 12 What Is a Mining Community? 12 13 How Remote Sensing Informs Agricultural Production 21 31 Artisanal and SmallScale Mining 70 41 SmallScale Mining Poses Challenges for Identifying Impacts of LargeScale Mines 99 42 Effect of a Mine Opening on Household Access toMining in Africa World Bank

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