Basalt geochemistry and tectonic discrimination within continental flood basalt provinces
- Authors: Marsh, Julian S
- Date: 2003
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140412 , vital:37886 , https://doi.org/10.1016/0377-0273(87)90035-7
- Description: Continental flood basalts are usually regarded as a single tectonomagmatic entity but frequently quoted examples exhibit a variety of tectonic settings. In one well-studied, classic, flood basalt province, the Mesozoic Karoo province of southern Africa, magmatism occurred in the following tectonic settings: (a) continental rifting leading to ocean-floor spreading in the South Atlantic Ocean (Etendeka suite of Namibia); (b) stretched continental lithosphere and rifting not leading directly to ocean-floor formation (Lebombo suite of southeastern Africa); and (c) an a-tectonic, within-plate, continental setting characterized by an absence of faulting or warping (Lesotho highlands and Karoo dolerites of South Africa).
- Full Text: false
- Authors: Marsh, Julian S
- Date: 2003
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140412 , vital:37886 , https://doi.org/10.1016/0377-0273(87)90035-7
- Description: Continental flood basalts are usually regarded as a single tectonomagmatic entity but frequently quoted examples exhibit a variety of tectonic settings. In one well-studied, classic, flood basalt province, the Mesozoic Karoo province of southern Africa, magmatism occurred in the following tectonic settings: (a) continental rifting leading to ocean-floor spreading in the South Atlantic Ocean (Etendeka suite of Namibia); (b) stretched continental lithosphere and rifting not leading directly to ocean-floor formation (Lebombo suite of southeastern Africa); and (c) an a-tectonic, within-plate, continental setting characterized by an absence of faulting or warping (Lesotho highlands and Karoo dolerites of South Africa).
- Full Text: false
Evolution of a strongly differentiated suite of phonolites from the Klinghardt Mountains, Namibia
- Authors: Marsh, Julian S
- Date: 2003
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140400 , vital:37885 , https://doi.org/10.1016/0024-4937(87)90023-5
- Description: Phonolites of Tertiary age occur as eroded tholoids, lava flows, ignimbrites, and coulees in the Klinghardt Mountains of southern Namibia. Sixty samples have been analyzed for major and trace elements and fourteen of these for 87SR 86SR. The phonolites lie close to the low-pressure cotectics in Q-Ne-Ks, in keeping with their petrography which indicates that most samples have phenocrysts of both nepheline and sanidine. Na has been variably lost from the rocks during crystallization and devitrification/alteration of hypocrystalline specimens.
- Full Text: false
- Authors: Marsh, Julian S
- Date: 2003
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140400 , vital:37885 , https://doi.org/10.1016/0024-4937(87)90023-5
- Description: Phonolites of Tertiary age occur as eroded tholoids, lava flows, ignimbrites, and coulees in the Klinghardt Mountains of southern Namibia. Sixty samples have been analyzed for major and trace elements and fourteen of these for 87SR 86SR. The phonolites lie close to the low-pressure cotectics in Q-Ne-Ks, in keeping with their petrography which indicates that most samples have phenocrysts of both nepheline and sanidine. Na has been variably lost from the rocks during crystallization and devitrification/alteration of hypocrystalline specimens.
- Full Text: false
Action notes: No. 3: Workshops
- Authors: Human Awareness Programme
- Date: 1987-06
- Subjects: Nonprofit organizations -- Management
- Language: English
- Type: instruction , text
- Identifier: http://hdl.handle.net/10962/60179 , vital:27744 , ISBN 0-620-11064-3
- Description: This pamphlet will help you to plan a workshop. It looks at planning the content as well as the practical arrangements for the workshop. There are many reasons for having a workshop. They could include: teaching your activists a skill, like running meetings or producing media; analysing a new political development e.g. an election or a new law; planning a programme of action or a campaign; evaluating the work you have done in the past year, or the work you have done for a campaign; sorting out internal problem like structures that are not appropriate or a break down in working relationships. Whatever the reason for your workshop, you need to make sure that the aim is clear right from the start. Before you begin planning, you need to sort out exactly why you are having the workshop and what you hope to achieve by having the workshop. If your aim is clear, you can go ahead with the planning. This pamphlet is about planning a workshop ONCE YOU KNOW WHAT YOU HOPE TO ACHIEVE.
- Full Text:
- Authors: Human Awareness Programme
- Date: 1987-06
- Subjects: Nonprofit organizations -- Management
- Language: English
- Type: instruction , text
- Identifier: http://hdl.handle.net/10962/60179 , vital:27744 , ISBN 0-620-11064-3
- Description: This pamphlet will help you to plan a workshop. It looks at planning the content as well as the practical arrangements for the workshop. There are many reasons for having a workshop. They could include: teaching your activists a skill, like running meetings or producing media; analysing a new political development e.g. an election or a new law; planning a programme of action or a campaign; evaluating the work you have done in the past year, or the work you have done for a campaign; sorting out internal problem like structures that are not appropriate or a break down in working relationships. Whatever the reason for your workshop, you need to make sure that the aim is clear right from the start. Before you begin planning, you need to sort out exactly why you are having the workshop and what you hope to achieve by having the workshop. If your aim is clear, you can go ahead with the planning. This pamphlet is about planning a workshop ONCE YOU KNOW WHAT YOU HOPE TO ACHIEVE.
- Full Text:
LACOM News, no. 3, May 1987
- Authors: LACOM (Sached Trust)
- Date: 1987-05
- Language: English
- Type: Newsletter , text
- Identifier: http://hdl.handle.net/10962/60168 , vital:27743
- Description: At the national meeting of LACOM held in East London in May, a decision was taken that LACOM should produce its own newsletter. I he newsletter would be produced about tour times a year. The different branches would take responsibility for editing each edition of the newsletter. All branches would be responsible for submitting material to the editing branch by a required date. The aim of the newsletter was said to be: a) to provide a forum for open debate and of self-criticism and evaluation; b) to discuss some of the concrete problems facing the project; c) to raise more general and topical issues related to the practice of education; d) to include general information and news. This first newsletter was produced by the Durban branch of LACOM. Contributions were received from the Western Cape, Eastern Cape and Natal Region.
- Full Text:
- Authors: LACOM (Sached Trust)
- Date: 1987-05
- Language: English
- Type: Newsletter , text
- Identifier: http://hdl.handle.net/10962/60168 , vital:27743
- Description: At the national meeting of LACOM held in East London in May, a decision was taken that LACOM should produce its own newsletter. I he newsletter would be produced about tour times a year. The different branches would take responsibility for editing each edition of the newsletter. All branches would be responsible for submitting material to the editing branch by a required date. The aim of the newsletter was said to be: a) to provide a forum for open debate and of self-criticism and evaluation; b) to discuss some of the concrete problems facing the project; c) to raise more general and topical issues related to the practice of education; d) to include general information and news. This first newsletter was produced by the Durban branch of LACOM. Contributions were received from the Western Cape, Eastern Cape and Natal Region.
- Full Text:
"All vistas close in the unseen" : a study of the transcendent in the fiction of E. M. Forster
- Authors: Butler, Ian
- Date: 1987
- Subjects: Forster, E. M. (Edward Morgan), 1879-1970 -- Criticism and interpretation , Forster, E. M. (Edward Morgan), 1879-1970
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2175 , http://hdl.handle.net/10962/d1001826
- Description: From introduction: It has become something of a commonplace among critics to remark Forster's relative lack of success in offering an alternative to the world which he satirises with such wit and humour. His comic treatment of the suburban absurdities of the Edwardian Englishman is, on the whole, far more compelling and memorable than the often vague, symbolic gestures by means of which he implies the possibility of something better. With the exception of his last and greatest novel, A Passage to India, his "alternatives" are largely factitious and contrived. Worse, the reader senses a fundamental uncertainty on the part of the author: his characteristic ambivalence in itself an indication of a perceptive and discriminating mind -- all too often suggests lack of conviction rather than an intelligent awareness of the infinitude of human possibilities.
- Full Text:
- Authors: Butler, Ian
- Date: 1987
- Subjects: Forster, E. M. (Edward Morgan), 1879-1970 -- Criticism and interpretation , Forster, E. M. (Edward Morgan), 1879-1970
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2175 , http://hdl.handle.net/10962/d1001826
- Description: From introduction: It has become something of a commonplace among critics to remark Forster's relative lack of success in offering an alternative to the world which he satirises with such wit and humour. His comic treatment of the suburban absurdities of the Edwardian Englishman is, on the whole, far more compelling and memorable than the often vague, symbolic gestures by means of which he implies the possibility of something better. With the exception of his last and greatest novel, A Passage to India, his "alternatives" are largely factitious and contrived. Worse, the reader senses a fundamental uncertainty on the part of the author: his characteristic ambivalence in itself an indication of a perceptive and discriminating mind -- all too often suggests lack of conviction rather than an intelligent awareness of the infinitude of human possibilities.
- Full Text:
"Chimurenga" 1896-1897: a revisionist study
- Authors: Horn, Mark Philip Malcolm
- Date: 1987
- Subjects: National liberation movements -- Zimbabwe , Political violence -- Zimbabwe , Zimbabwe -- Politics and government -- 1980- , Zimbabwe -- History -- Chimurenga War, 1966-1980
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2546 , http://hdl.handle.net/10962/d1002398 , National liberation movements -- Zimbabwe , Political violence -- Zimbabwe , Zimbabwe -- Politics and government -- 1980- , Zimbabwe -- History -- Chimurenga War, 1966-1980
- Description: There were no "Rebellions" in 1896-7. The concept of "risings" which is to be found in the European perspective of the escalated violence has distorted an understanding of the complex nature of the events. The events of 1896-7 must rather be explained through an examination of the details of the conflict. European pressure on the African people prior to 1896 was minimal and cannot be assumed to be the "cause" of the first "Chimurenga". There was no planned, organised or coordinated "rebellion" in Matabeleland in March 1896. Further, no distinction can be made between a "March" rebellion in Matabeleland and a June "rebellion" in Mashonaland. A European war of conquest in 1896-7 evoked the responce known now as the first "Chimurenga". It was the war of conquest of 1896-7 which saw the ascendancy of the European perspective over the African and thereby established the psychological foundations of the Rhodesian colonial state. The complex nature of the events of 1896-7 is to be understood through an appreciation of the different perspectives of those who became embroiled in the conflict.
- Full Text:
- Authors: Horn, Mark Philip Malcolm
- Date: 1987
- Subjects: National liberation movements -- Zimbabwe , Political violence -- Zimbabwe , Zimbabwe -- Politics and government -- 1980- , Zimbabwe -- History -- Chimurenga War, 1966-1980
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2546 , http://hdl.handle.net/10962/d1002398 , National liberation movements -- Zimbabwe , Political violence -- Zimbabwe , Zimbabwe -- Politics and government -- 1980- , Zimbabwe -- History -- Chimurenga War, 1966-1980
- Description: There were no "Rebellions" in 1896-7. The concept of "risings" which is to be found in the European perspective of the escalated violence has distorted an understanding of the complex nature of the events. The events of 1896-7 must rather be explained through an examination of the details of the conflict. European pressure on the African people prior to 1896 was minimal and cannot be assumed to be the "cause" of the first "Chimurenga". There was no planned, organised or coordinated "rebellion" in Matabeleland in March 1896. Further, no distinction can be made between a "March" rebellion in Matabeleland and a June "rebellion" in Mashonaland. A European war of conquest in 1896-7 evoked the responce known now as the first "Chimurenga". It was the war of conquest of 1896-7 which saw the ascendancy of the European perspective over the African and thereby established the psychological foundations of the Rhodesian colonial state. The complex nature of the events of 1896-7 is to be understood through an appreciation of the different perspectives of those who became embroiled in the conflict.
- Full Text:
A comparison of nesting behaviour and prey selection in some Southern African species of Ammophila (Hymenoptera : Sphecidae)
- Authors: Weaving, Alan James Shelley
- Date: 1987
- Subjects: Hymenoptera
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5600 , http://hdl.handle.net/10962/d1002050
- Description: Nesting behaviour and prey selection was compared in eight species of Ammophila. The frequent sympatry of these species was a central point of interest in the study. Nest siting differed markedly in several species. A. ferrugineipes, A. dolichodera, A. dolichocephala and, probably, A. conifera nested mostly in open habitats, this being regarded as the most common situation for the majority of Ammophila. A. beniniensis was unusual in nesting in well vegetated habitats, A. vulcania doing so amongst small clumps of vegetation in otherwise open habitats. A. insignis nested in vertical banks or old animal burrows and A. braunsi utilised abandoned burrows of other wasps situated in non-friable clay soils. This is the first time such nest siting has been reported for Ammophila and each of these two species is consequently unique. Many aspects of nest construction behaviour, in particular methods of soil waste disposal, sealing of nests and their final coverage, differed interspecifically, in some cases intraspecifically, but often apparently in response to the habitat. With regard to nest provisioning strategies, all species hunted after digging their nests, except A. dolichodera which is the first Afrotropical Ammophila reported to hunt before excavating its nest. This brings the total number of the world's species of Ammophila showing this behaviour to three. This species, A. beniniensis, A. braunsi and A. vulcania provided one caterpillar per nest; the others supplied several, A. insignis being the only mass provisioner. A. ferrugineipes showed a form of progressive provisioning and maintained several nests at a time; it is the only Afrotropical species known so far to do so. Only two extra-limital species have been reported showing similar behaviour. The observed variations in provisioning strategies can most easily be explained in relation to the habitat. Investigation of prey selection showed that there was very little interspecific overlap in the species of caterpillars used for provisioning nests. This was shown to be due mainly to differing hunting habitat preferences. The various overall patterns of nesting behaviour, and variations in the different components within these patterns, were considered most likely to have resulted from allopatric speciation in different types of vegetation, the more advanced patterns arising in open habitats. The frequent occurrence of sympatry appears to be a reflection of a shifting distribution of mosaic patterns of vegetation types and the post-speciation spread of species. This influence of habitat on behaviour and prey selection has emphasised the need for caution in drawing phylogenetic conclusions from ethology. Further, these considerations provide an alternative to competition in attempting to explain the observed behaviour patterns and distribution of these wasps.
- Full Text:
- Authors: Weaving, Alan James Shelley
- Date: 1987
- Subjects: Hymenoptera
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5600 , http://hdl.handle.net/10962/d1002050
- Description: Nesting behaviour and prey selection was compared in eight species of Ammophila. The frequent sympatry of these species was a central point of interest in the study. Nest siting differed markedly in several species. A. ferrugineipes, A. dolichodera, A. dolichocephala and, probably, A. conifera nested mostly in open habitats, this being regarded as the most common situation for the majority of Ammophila. A. beniniensis was unusual in nesting in well vegetated habitats, A. vulcania doing so amongst small clumps of vegetation in otherwise open habitats. A. insignis nested in vertical banks or old animal burrows and A. braunsi utilised abandoned burrows of other wasps situated in non-friable clay soils. This is the first time such nest siting has been reported for Ammophila and each of these two species is consequently unique. Many aspects of nest construction behaviour, in particular methods of soil waste disposal, sealing of nests and their final coverage, differed interspecifically, in some cases intraspecifically, but often apparently in response to the habitat. With regard to nest provisioning strategies, all species hunted after digging their nests, except A. dolichodera which is the first Afrotropical Ammophila reported to hunt before excavating its nest. This brings the total number of the world's species of Ammophila showing this behaviour to three. This species, A. beniniensis, A. braunsi and A. vulcania provided one caterpillar per nest; the others supplied several, A. insignis being the only mass provisioner. A. ferrugineipes showed a form of progressive provisioning and maintained several nests at a time; it is the only Afrotropical species known so far to do so. Only two extra-limital species have been reported showing similar behaviour. The observed variations in provisioning strategies can most easily be explained in relation to the habitat. Investigation of prey selection showed that there was very little interspecific overlap in the species of caterpillars used for provisioning nests. This was shown to be due mainly to differing hunting habitat preferences. The various overall patterns of nesting behaviour, and variations in the different components within these patterns, were considered most likely to have resulted from allopatric speciation in different types of vegetation, the more advanced patterns arising in open habitats. The frequent occurrence of sympatry appears to be a reflection of a shifting distribution of mosaic patterns of vegetation types and the post-speciation spread of species. This influence of habitat on behaviour and prey selection has emphasised the need for caution in drawing phylogenetic conclusions from ethology. Further, these considerations provide an alternative to competition in attempting to explain the observed behaviour patterns and distribution of these wasps.
- Full Text:
A geological model of shear zone gold deposits in the Pietersburg Greenstone Belt, South Africa
- Authors: Franey, N J
- Date: 1987 , 2013-04-17
- Subjects: Greenstone belts -- South Africa , Gold ores -- Geology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5032 , http://hdl.handle.net/10962/d1007190 , Greenstone belts -- South Africa , Gold ores -- Geology -- South Africa
- Description: The Pletersburg greenstone belt Is located In South Africa, about 300 km northeast of Johannesburg. It hosts a significant amount of gold mineralization and just over 1000 kg of gold have been produced from Its various reefs and secondary deposits. The greenstone belt is interpreted as an Archean ophiolite complex. It comprlses a volcano-sedimentary succession (the Pletersburg Group) which Is subdivided Into a basal greenstone sequence, interpreted as oceanic crust, and an upper sedimentary cover sequence. A number of major shear zones, which are thought to represent thrusts that developed during the subduction of the greenstone sequence, form an integral part of the stratigraphy . Four stages of deformation (D₁-D₄) and four phases of metamorphism (H₁-H₄) (three of which are correlatable with the peak stages of deformation) are recognized. The primary gold deposits are all shear zones related. but they are subdivided into greenstone, sedimentation and granIte-hosted types. Geographically, they occur In three distinct goldfields: Eerstellng, Roodepoort and Marbastad. The greenstone-hosted · Plenaar-Doreen shear complex Is In the Eersteiing goldfield and hosts eight gold occurrences. Within the complex, Girlie North Reef is the 640m-long "pay" section of the Girlie North shear zone. This reef is characterized, macroscopically, by a Quartz-carbonate-chlorite-sulphlde assemblage and, mlcroscoplcally, by the presence of tourmaline, arsenopyrlte and Au. Geochemical evidence Indicates that mineralizing fluids were H₂O and CO₂-bearing and rich In S, K and Al. The wall rock alteratlon was Isochemlcal but Is manifest as a change In mineralogy from a hornblende + plagioclase assemblage to an actlnollte/tremollte + Quartz + clay assemblage. This Is best developed In the hangIng wall of the reef and is thought to have been caused by hydrogen ion metasomatism. The Arsenopyrite Reef was one of the main sediment-hosted shear zone gold producers In the Harabastad goldfield. This reef Is Interpreted as the basal margin of a shear zone whose top contact Is probably represented by the Quartz Vein Reef. The shear zone consists predomonantly of quartz and carbonate, and the two "pay" reefs are characterized by tourmallne. arsenopyrite and Au. No wall rock alteration was identified In this study, Based on the mineralogy and geochemical signature of the Girlie Nortn Reef and the Arsenopyrite Reef, It Is proposed that both were formed at the $The Pletersburg greenstone belt Is located In South Africa, about 300 km northeast of Johannesburg. It hosts a significant amount of gold mineralization and just over 1000 kg of gold have been produced from Its various reefs and secondary deposits. The greenstone belt is interpreted as an Archean ophiolite complex. It comprlses a volcano-sedimentary succession (the Pletersburg Group) which Is subdivided Into a basal greenstone sequence, interpreted as oceanic crust, and an upper sedimentary cover sequence. A number of major shear zones, which are thought to represent thrusts that developed during the subduction of the greenstone sequence, form an integral part of the stratigraphy . Four stages of deformation (D₁-D₄) and four phases of metamorphism (H₁-H₄) (three of which are correlatable with the peak stages of deformation) are recognized. The primary gold deposits are all shear zones related. but they are subdivided into greenstone, sedimentation and granIte-hosted types. Geographically, they occur In three distinct goldfields: Eerstellng, Roodepoort and Marbastad. The greenstone-hosted · Plenaar-Doreen shear complex Is In the Eersteiing goldfield and hosts eight gold occurrences. Within the complex, Girlie North Reef is the 640m-long "pay" section of the Girlie North shear zone. This reef is characterized, macroscopically, by a Quartz-carbonate-chlorite-sulphlde assemblage and, mlcroscoplcally, by the presence of tourmaline, arsenopyrlte and Au. Geochemical evidence Indicates that mineralizing fluids were H₂O and CO₂-bearing and rich In S, K and Al. The wall rock alteratlon was Isochemlcal but Is manifest as a change In mineralogy from a hornblende + plagioclase assemblage to an actlnollte/tremollte + Quartz + clay assemblage. This Is best developed In the hangIng wall of the reef and is thought to have been caused by hydrogen ion metasomatism. The Arsenopyrite Reef was one of the main sediment-hosted shear zone gold producers In the Harabastad goldfield. This reef Is Interpreted as the basal margin of a shear zone whose top contact Is probably represented by the Quartz Vein Reef. The shear zone consists predomonantly of quartz and carbonate, and the two "pay" reefs are characterized by tourmallne. arsenopyrite and Au. No wall rock alteration was identified In this study, Based on the mineralogy and geochemical signature of the Girlie Nortn Reef and the Arsenopyrite Reef, It Is proposed that both were formed at the same time. Textural evidence Indicates that tourmaline, arsenopyrite and Au were all very late In the paragenesis of minerallzatlon. The presence of tourmaline also Indicates a probable granite association. It Is proposed that the maln gold mineralizing event was synchronous with the Intrusion of granitoids (and therefore also with (D₁-D₄) and (H₁-H₄) and that most of the Au was derived from felsic magma. Gold was partitioned Into a magmatic hydrothermal fluid and then transported into the greenstone belt as a chlorIde complex. These magmatiC fluids were channelled up shear zones whIch had already been mineralized with a quartz-carbonate-chlorlte - sulphide assemblage by previous metamorphic fluidS. generated during the dynamic (D₂-related) H₂-phase of metamorphism. The Au was then deposIted as the result of a change In a fluid variable, such as temperature, pH, f0₂, or the activity of Cl (some Au may have been transported In a sulphur complex and so the activity of reduced 5 could also have been Important).
- Full Text:
- Authors: Franey, N J
- Date: 1987 , 2013-04-17
- Subjects: Greenstone belts -- South Africa , Gold ores -- Geology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5032 , http://hdl.handle.net/10962/d1007190 , Greenstone belts -- South Africa , Gold ores -- Geology -- South Africa
- Description: The Pletersburg greenstone belt Is located In South Africa, about 300 km northeast of Johannesburg. It hosts a significant amount of gold mineralization and just over 1000 kg of gold have been produced from Its various reefs and secondary deposits. The greenstone belt is interpreted as an Archean ophiolite complex. It comprlses a volcano-sedimentary succession (the Pletersburg Group) which Is subdivided Into a basal greenstone sequence, interpreted as oceanic crust, and an upper sedimentary cover sequence. A number of major shear zones, which are thought to represent thrusts that developed during the subduction of the greenstone sequence, form an integral part of the stratigraphy . Four stages of deformation (D₁-D₄) and four phases of metamorphism (H₁-H₄) (three of which are correlatable with the peak stages of deformation) are recognized. The primary gold deposits are all shear zones related. but they are subdivided into greenstone, sedimentation and granIte-hosted types. Geographically, they occur In three distinct goldfields: Eerstellng, Roodepoort and Marbastad. The greenstone-hosted · Plenaar-Doreen shear complex Is In the Eersteiing goldfield and hosts eight gold occurrences. Within the complex, Girlie North Reef is the 640m-long "pay" section of the Girlie North shear zone. This reef is characterized, macroscopically, by a Quartz-carbonate-chlorite-sulphlde assemblage and, mlcroscoplcally, by the presence of tourmaline, arsenopyrlte and Au. Geochemical evidence Indicates that mineralizing fluids were H₂O and CO₂-bearing and rich In S, K and Al. The wall rock alteratlon was Isochemlcal but Is manifest as a change In mineralogy from a hornblende + plagioclase assemblage to an actlnollte/tremollte + Quartz + clay assemblage. This Is best developed In the hangIng wall of the reef and is thought to have been caused by hydrogen ion metasomatism. The Arsenopyrite Reef was one of the main sediment-hosted shear zone gold producers In the Harabastad goldfield. This reef Is Interpreted as the basal margin of a shear zone whose top contact Is probably represented by the Quartz Vein Reef. The shear zone consists predomonantly of quartz and carbonate, and the two "pay" reefs are characterized by tourmallne. arsenopyrite and Au. No wall rock alteration was identified In this study, Based on the mineralogy and geochemical signature of the Girlie Nortn Reef and the Arsenopyrite Reef, It Is proposed that both were formed at the $The Pletersburg greenstone belt Is located In South Africa, about 300 km northeast of Johannesburg. It hosts a significant amount of gold mineralization and just over 1000 kg of gold have been produced from Its various reefs and secondary deposits. The greenstone belt is interpreted as an Archean ophiolite complex. It comprlses a volcano-sedimentary succession (the Pletersburg Group) which Is subdivided Into a basal greenstone sequence, interpreted as oceanic crust, and an upper sedimentary cover sequence. A number of major shear zones, which are thought to represent thrusts that developed during the subduction of the greenstone sequence, form an integral part of the stratigraphy . Four stages of deformation (D₁-D₄) and four phases of metamorphism (H₁-H₄) (three of which are correlatable with the peak stages of deformation) are recognized. The primary gold deposits are all shear zones related. but they are subdivided into greenstone, sedimentation and granIte-hosted types. Geographically, they occur In three distinct goldfields: Eerstellng, Roodepoort and Marbastad. The greenstone-hosted · Plenaar-Doreen shear complex Is In the Eersteiing goldfield and hosts eight gold occurrences. Within the complex, Girlie North Reef is the 640m-long "pay" section of the Girlie North shear zone. This reef is characterized, macroscopically, by a Quartz-carbonate-chlorite-sulphlde assemblage and, mlcroscoplcally, by the presence of tourmaline, arsenopyrlte and Au. Geochemical evidence Indicates that mineralizing fluids were H₂O and CO₂-bearing and rich In S, K and Al. The wall rock alteratlon was Isochemlcal but Is manifest as a change In mineralogy from a hornblende + plagioclase assemblage to an actlnollte/tremollte + Quartz + clay assemblage. This Is best developed In the hangIng wall of the reef and is thought to have been caused by hydrogen ion metasomatism. The Arsenopyrite Reef was one of the main sediment-hosted shear zone gold producers In the Harabastad goldfield. This reef Is Interpreted as the basal margin of a shear zone whose top contact Is probably represented by the Quartz Vein Reef. The shear zone consists predomonantly of quartz and carbonate, and the two "pay" reefs are characterized by tourmallne. arsenopyrite and Au. No wall rock alteration was identified In this study, Based on the mineralogy and geochemical signature of the Girlie Nortn Reef and the Arsenopyrite Reef, It Is proposed that both were formed at the same time. Textural evidence Indicates that tourmaline, arsenopyrite and Au were all very late In the paragenesis of minerallzatlon. The presence of tourmaline also Indicates a probable granite association. It Is proposed that the maln gold mineralizing event was synchronous with the Intrusion of granitoids (and therefore also with (D₁-D₄) and (H₁-H₄) and that most of the Au was derived from felsic magma. Gold was partitioned Into a magmatic hydrothermal fluid and then transported into the greenstone belt as a chlorIde complex. These magmatiC fluids were channelled up shear zones whIch had already been mineralized with a quartz-carbonate-chlorlte - sulphide assemblage by previous metamorphic fluidS. generated during the dynamic (D₂-related) H₂-phase of metamorphism. The Au was then deposIted as the result of a change In a fluid variable, such as temperature, pH, f0₂, or the activity of Cl (some Au may have been transported In a sulphur complex and so the activity of reduced 5 could also have been Important).
- Full Text:
A hydrogeological assessment of the Uitenhage-Kuils River area, Cape Province, South Africa
- Authors: Bush, Richard Alan
- Date: 1987
- Subjects: Aquifers -- South Africa , Hydrogeology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4801 , http://hdl.handle.net/10962/d1001901 , Aquifers -- South Africa , Hydrogeology -- South Africa
- Full Text:
- Authors: Bush, Richard Alan
- Date: 1987
- Subjects: Aquifers -- South Africa , Hydrogeology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4801 , http://hdl.handle.net/10962/d1001901 , Aquifers -- South Africa , Hydrogeology -- South Africa
- Full Text:
A machine-independent microprogram development system
- Authors: Ward, Michael John
- Date: 1987 , 2013-03-11
- Subjects: Microprogramming
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4581 , http://hdl.handle.net/10962/d1003738 , Microprogramming
- Description: The aims of this project are twofold. They are firstly, to implement a microprogram development system that allows the programmer to write microcode for any microprogrammable machine, and secondly, to build a microprogrammable machine, incorporating the user friendliness of a simulator, while still providing the 'hands on' experience obtained actual hardware. Microprogram development involves a two stage process. The first step is to describe the target machine, using format descriptions and mnemonic-based template definitions. The second stage involves using the defined mnemonics to write the microcodes for the target machine. This includes an assembly phase to translate the mnemonics into the binary microinstructions. Three main components constitute the microprogrammable machine. The Arithmetic and Logic Unit (ALU) is built using chips from Advanced Micro Devices' Am29ØØ bit-slice family, the action of the Microprogram Control Unit (MCU) is simulated by software running on an IBM Personal Computer, and a section of the IBM PC's main memory acts as the Control Store (CS) for the system. The ALU is built on a prototyping card that plugs into one of the slots on the IBM PC's mother board. A hardware simulator program, that produces the effect of the ALU, has also been developed. A small assembly language has been developed using the system, to test the various functions of the system. A mini-assembler has also been written to facilitate assembly of the above language. A group of honours students at Rhodes University tested the microprogram development system. Their ideas and suggestions have been tabulated in this report and some of them have been used to enhance the system's performance. The concept of allowing 'inline' microinstructions in the macroprogram is also investigated in this report and a method of implementing this is shown.
- Full Text:
- Authors: Ward, Michael John
- Date: 1987 , 2013-03-11
- Subjects: Microprogramming
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4581 , http://hdl.handle.net/10962/d1003738 , Microprogramming
- Description: The aims of this project are twofold. They are firstly, to implement a microprogram development system that allows the programmer to write microcode for any microprogrammable machine, and secondly, to build a microprogrammable machine, incorporating the user friendliness of a simulator, while still providing the 'hands on' experience obtained actual hardware. Microprogram development involves a two stage process. The first step is to describe the target machine, using format descriptions and mnemonic-based template definitions. The second stage involves using the defined mnemonics to write the microcodes for the target machine. This includes an assembly phase to translate the mnemonics into the binary microinstructions. Three main components constitute the microprogrammable machine. The Arithmetic and Logic Unit (ALU) is built using chips from Advanced Micro Devices' Am29ØØ bit-slice family, the action of the Microprogram Control Unit (MCU) is simulated by software running on an IBM Personal Computer, and a section of the IBM PC's main memory acts as the Control Store (CS) for the system. The ALU is built on a prototyping card that plugs into one of the slots on the IBM PC's mother board. A hardware simulator program, that produces the effect of the ALU, has also been developed. A small assembly language has been developed using the system, to test the various functions of the system. A mini-assembler has also been written to facilitate assembly of the above language. A group of honours students at Rhodes University tested the microprogram development system. Their ideas and suggestions have been tabulated in this report and some of them have been used to enhance the system's performance. The concept of allowing 'inline' microinstructions in the macroprogram is also investigated in this report and a method of implementing this is shown.
- Full Text:
A phenomenological investigation of the beginning therapist's experience of the first session of psychotherapy with the first patient
- Authors: Allen, Jennifer Ann
- Date: 1987
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/193129 , vital:45301
- Description: The aim of this project is to come to an understanding of how the situation of the first session of psychotherapy with the first patient is lived by the beginning therapist and what meaning this situation holds for him. The writer's interest in this phenomenon grew out of her own experience of this situation as a clinical Masters coursework student, an experience which was of important to the writer and meaningful still as a therapist in training. In dialogue with experienced therapists the importance of this situation was again made apparant. It was the opinion of these therapists that although for some the details of this experience had become dulled by time, what remained meaningful to them was that this experience was seen as the beginning of a project which remains important to them - they identified this situation as an important moment in the history of their development as psychotherapists. In the hope that the literature pertaining to psychotherapy would throw some light on this situation, the writer turned to a number of sources in this area to discover that no literature available to her elucidated this situation in a holistic manner. This led the writer to go back to the beginning therapists themselves so that they may speak for themselves of their experience of this situation. A phenomenological method of enquiry is implemented in this study as it renders the subject matter accessible to investigation, and allows it to reveal itself as it essentially is. This project is then an attempt to come to a general description of the beginning therapist's experience of the first session of psychotherapy with the first patient and thus to articulate the structure of the beginning therapist's lived situation (world) in this context. , Thesis (MA) -- Faculty of Humanities, Psychology, 1987
- Full Text:
- Authors: Allen, Jennifer Ann
- Date: 1987
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/193129 , vital:45301
- Description: The aim of this project is to come to an understanding of how the situation of the first session of psychotherapy with the first patient is lived by the beginning therapist and what meaning this situation holds for him. The writer's interest in this phenomenon grew out of her own experience of this situation as a clinical Masters coursework student, an experience which was of important to the writer and meaningful still as a therapist in training. In dialogue with experienced therapists the importance of this situation was again made apparant. It was the opinion of these therapists that although for some the details of this experience had become dulled by time, what remained meaningful to them was that this experience was seen as the beginning of a project which remains important to them - they identified this situation as an important moment in the history of their development as psychotherapists. In the hope that the literature pertaining to psychotherapy would throw some light on this situation, the writer turned to a number of sources in this area to discover that no literature available to her elucidated this situation in a holistic manner. This led the writer to go back to the beginning therapists themselves so that they may speak for themselves of their experience of this situation. A phenomenological method of enquiry is implemented in this study as it renders the subject matter accessible to investigation, and allows it to reveal itself as it essentially is. This project is then an attempt to come to a general description of the beginning therapist's experience of the first session of psychotherapy with the first patient and thus to articulate the structure of the beginning therapist's lived situation (world) in this context. , Thesis (MA) -- Faculty of Humanities, Psychology, 1987
- Full Text:
A preliminary investigation into the effectiveness of the N.E.D. careers education programme in promoting career maturity in high school pupils
- Authors: Delport, Juan Phillippe
- Date: 1987
- Subjects: Career education -- South Africa -- KwaZulu-Natal Vocational guidance -- South Africa -- KwaZulu-Natal
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1911 , http://hdl.handle.net/10962/d1007080
- Description: A developmental paradigm was adopted as a theoretical base from which the effectiveness of the Natal Education Department Career Education lesson-guide in promoting career maturity amongst high school pupils was investigated. It was argued that careers education embodies a distinctive approach to careers work. This approach is described. South African Careers Guidance practices are evaluated in terms of fit, and are compared to American and British ones. To investigate the outcomes of the NED lesson guide, 160 predominantly white, male and female pupils in Standards 6 - 10 were randanly divided into control and experimental grotps and underwent a six session classroom based careers education programme. In addition to the NED material,alternative materials (CRIC - Std. 7 and CRAC - Std. 9) were used on a second experimental group in two standards. The Career Maturity Inventory Attitude Scale was used to measure the outcomes. Analysis of variance and t-tests for the difference between means were used to analyse the data. The results were significant only in Standard 8. For all the other standards with all the materials, they were insignificant. Reasons for and implications of these findings are discussed.
- Full Text:
- Authors: Delport, Juan Phillippe
- Date: 1987
- Subjects: Career education -- South Africa -- KwaZulu-Natal Vocational guidance -- South Africa -- KwaZulu-Natal
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1911 , http://hdl.handle.net/10962/d1007080
- Description: A developmental paradigm was adopted as a theoretical base from which the effectiveness of the Natal Education Department Career Education lesson-guide in promoting career maturity amongst high school pupils was investigated. It was argued that careers education embodies a distinctive approach to careers work. This approach is described. South African Careers Guidance practices are evaluated in terms of fit, and are compared to American and British ones. To investigate the outcomes of the NED lesson guide, 160 predominantly white, male and female pupils in Standards 6 - 10 were randanly divided into control and experimental grotps and underwent a six session classroom based careers education programme. In addition to the NED material,alternative materials (CRIC - Std. 7 and CRAC - Std. 9) were used on a second experimental group in two standards. The Career Maturity Inventory Attitude Scale was used to measure the outcomes. Analysis of variance and t-tests for the difference between means were used to analyse the data. The results were significant only in Standard 8. For all the other standards with all the materials, they were insignificant. Reasons for and implications of these findings are discussed.
- Full Text:
A review of issues related to planning and development in Grahamstown: annotated bibliography
- Authors: Taylor, Beverley J
- Date: 1987
- Subjects: Community development -- South Africa Regional planning -- South Africa -- Grahamstown -- Bibliography Grahamstown (South Africa) -- Economic policy -- Bibliography Grahamstown (South Africa) -- Economic conditions -- Bibliography
- Language: English
- Type: Book , Text
- Identifier: http://hdl.handle.net/10962/1774 , vital:20224 , ISBN 0868101540
- Description: Towards the end of 1984 the Development Studies Unit (DSU) in the Institute of Social and Economic Research (ISER) at Rhodes University identified a need to undertake an investigation into the status of overall physical and socio-economic planning and development in Grahamstown. The initial intention of such an investigation was to identify, analyse and assess existing research related to the development of Grahamstown in order to provide a benchmark that could reduce the incidence of duplication and overlap in future research projects and to provide a point of departure for the design of more specific and action-oriented research and the formulation of feasible strategies for future development in the City. During the course of comprehensive background investigation and discussions with a wide range of local interest groups, it became clear that the proposed review of issues related to planning and development in Grahamstown would be far more extensive than originally anticipated. In addition, 1985 turned out to be an eventful year and the DSU actively encouraged research by other agencies and individuals into related issues which were deemed to be an integral part of the proposed review. For these reasons, it was decided to publish the preliminary research results in a series of Development Studies Working Papers to provide a focus of attention for particular aspects of the work. This was felt to be in accordance with the intent of the ISER Development Studies Working Paper Series which is to publish the basic results of research undertaken in order to facilitate and encourage its further development into more substantial publications. This has resulted in a series of Working Papers to be published under the general title of "A Review of Issues Related to Planning and Development in Grahamstown". This Working Paper is the fourth in the series and consists of an annotated bibliography of publications dealing with the process of planning and development in Grahamstown. , Digitised by Rhodes University Library on behalf of the Institute of Social and Economic Research (ISER)
- Full Text:
- Authors: Taylor, Beverley J
- Date: 1987
- Subjects: Community development -- South Africa Regional planning -- South Africa -- Grahamstown -- Bibliography Grahamstown (South Africa) -- Economic policy -- Bibliography Grahamstown (South Africa) -- Economic conditions -- Bibliography
- Language: English
- Type: Book , Text
- Identifier: http://hdl.handle.net/10962/1774 , vital:20224 , ISBN 0868101540
- Description: Towards the end of 1984 the Development Studies Unit (DSU) in the Institute of Social and Economic Research (ISER) at Rhodes University identified a need to undertake an investigation into the status of overall physical and socio-economic planning and development in Grahamstown. The initial intention of such an investigation was to identify, analyse and assess existing research related to the development of Grahamstown in order to provide a benchmark that could reduce the incidence of duplication and overlap in future research projects and to provide a point of departure for the design of more specific and action-oriented research and the formulation of feasible strategies for future development in the City. During the course of comprehensive background investigation and discussions with a wide range of local interest groups, it became clear that the proposed review of issues related to planning and development in Grahamstown would be far more extensive than originally anticipated. In addition, 1985 turned out to be an eventful year and the DSU actively encouraged research by other agencies and individuals into related issues which were deemed to be an integral part of the proposed review. For these reasons, it was decided to publish the preliminary research results in a series of Development Studies Working Papers to provide a focus of attention for particular aspects of the work. This was felt to be in accordance with the intent of the ISER Development Studies Working Paper Series which is to publish the basic results of research undertaken in order to facilitate and encourage its further development into more substantial publications. This has resulted in a series of Working Papers to be published under the general title of "A Review of Issues Related to Planning and Development in Grahamstown". This Working Paper is the fourth in the series and consists of an annotated bibliography of publications dealing with the process of planning and development in Grahamstown. , Digitised by Rhodes University Library on behalf of the Institute of Social and Economic Research (ISER)
- Full Text:
A revision of the genus Rafnia thunb.(fam. Fabaceae : sub. fam. Papilionoideae)
- Richardson, Gaynor Rose-Marie
- Authors: Richardson, Gaynor Rose-Marie
- Date: 1987
- Subjects: Thunbergia -- Classification
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4237 , http://hdl.handle.net/10962/d1004746 , Thunbergia -- Classification
- Description: A taxonomic revision of Rafnia Thunb. (Fam. Fabaceae, Subfam . Papili onoideae) is presented in which 21 species are recognised. The relative value of the taxonomic characters is discussed. An electron microscopy study of the seed surface, pollen grains and several sexual characters has been undertaken. Two keys are included , one using vegetative and floral characters and the other using ultrastructure of the testa. Each species description is accompanied by illustrations and a distribution map. Historical and ecological notes on the genus are given
- Full Text:
- Authors: Richardson, Gaynor Rose-Marie
- Date: 1987
- Subjects: Thunbergia -- Classification
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4237 , http://hdl.handle.net/10962/d1004746 , Thunbergia -- Classification
- Description: A taxonomic revision of Rafnia Thunb. (Fam. Fabaceae, Subfam . Papili onoideae) is presented in which 21 species are recognised. The relative value of the taxonomic characters is discussed. An electron microscopy study of the seed surface, pollen grains and several sexual characters has been undertaken. Two keys are included , one using vegetative and floral characters and the other using ultrastructure of the testa. Each species description is accompanied by illustrations and a distribution map. Historical and ecological notes on the genus are given
- Full Text:
A stability-indicating liquid chromatographic method for the analysis of erythromycin in stored biological fluids using amperometric detection
- Stubbs, Christopher, Haigh, John M, Kanfer, Isadore
- Authors: Stubbs, Christopher , Haigh, John M , Kanfer, Isadore
- Date: 1987
- Language: English
- Type: Article
- Identifier: vital:6430 , http://hdl.handle.net/10962/d1006592
- Description: A simple, sensitive and reliable high-performance liquid chromatographic procedure has been developed for the determination of erythromycin in human serum and urine using amperometric detection. A solid-phase extraction procedure was used followed by chromatography on a reverse-phase column. The mean recovery of erythromycin from serum and urine was 80%. This method allows both erythromycin and its principle degradation product, anhydroeythromycin, to be determined during a period of sample storage at 4 degree C and minus 15 degree C. The method is sufficiently sensitive and precise and is thus highly suited for use in both pharmacokinetic and stability studies.
- Full Text:
- Authors: Stubbs, Christopher , Haigh, John M , Kanfer, Isadore
- Date: 1987
- Language: English
- Type: Article
- Identifier: vital:6430 , http://hdl.handle.net/10962/d1006592
- Description: A simple, sensitive and reliable high-performance liquid chromatographic procedure has been developed for the determination of erythromycin in human serum and urine using amperometric detection. A solid-phase extraction procedure was used followed by chromatography on a reverse-phase column. The mean recovery of erythromycin from serum and urine was 80%. This method allows both erythromycin and its principle degradation product, anhydroeythromycin, to be determined during a period of sample storage at 4 degree C and minus 15 degree C. The method is sufficiently sensitive and precise and is thus highly suited for use in both pharmacokinetic and stability studies.
- Full Text:
A structural study of the capsular antigens of escherichia coli K36 and klebiella K68
- Authors: Stanley, Shawn Mark Ross
- Date: 1987 , 2013-03-11
- Subjects: Enterobacteriaceae , Klebsiella , Escherichia , Antigens
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3814 , http://hdl.handle.net/10962/d1004613 , Enterobacteriaceae , Klebsiella , Escherichia , Antigens
- Description: From Introduction: Bacterial cells all have a cytoplasmic membrane (see Figure 1) which regulates the movement of ions and molecules into and out of the bacterium. Enclosing this membrane is a cell wall of which there are two general types, which are differentiated by the Gram stain(02) as being either gram positive or gram negative (depending upon whether they hold the gram stain after washing with ethanol). The cell wall provides the cell with shape and rigidity and is composed, in the case of gram positive types, of peptidoglycan, and in the case of gram negative bacteria, of a peptidoglycan and an outer membrane (see Figure 2). The peptidoglycan layer, common to both cell wall types, consists of a backbone of alternating units of N-acetylglucosamine and N-acetylmuramic acid to which peptides are attached by amide links. This heteropolymer is a highly cross linked mosaic and this gives it strength and rigidity. In gram positive bacteria, this layer also contains two carbohydr ate antigens, a simple polysaccharide and a teichoic acid; these are usually the type specific or major group antigens of the bacterium. Many of the bacteria also produce exopolysaccharides (see Figure 3) either as discrete capsules (for example, the Enterobacteriaceae K antigens) or unattached slime layers (for example, the Enterobacteriaceae M antigens). The vast majority of these polysaccharides are heteroglycans(03) composed of contiguous oligosaccharide repeating units. Their monosaccharide components are largely neutral hexoses, 6-deoxy hexoses and also amino sugars. (03) Pentose units are rare. (03) The capsular polysaccharides usually have a high content of acidic constituents such as uronic acids, phosphate groups, or pyruvate ketals. (01) , KMBT_363 , Adobe Acrobat 9.53 Paper Capture Plug-in
- Full Text:
- Authors: Stanley, Shawn Mark Ross
- Date: 1987 , 2013-03-11
- Subjects: Enterobacteriaceae , Klebsiella , Escherichia , Antigens
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3814 , http://hdl.handle.net/10962/d1004613 , Enterobacteriaceae , Klebsiella , Escherichia , Antigens
- Description: From Introduction: Bacterial cells all have a cytoplasmic membrane (see Figure 1) which regulates the movement of ions and molecules into and out of the bacterium. Enclosing this membrane is a cell wall of which there are two general types, which are differentiated by the Gram stain(02) as being either gram positive or gram negative (depending upon whether they hold the gram stain after washing with ethanol). The cell wall provides the cell with shape and rigidity and is composed, in the case of gram positive types, of peptidoglycan, and in the case of gram negative bacteria, of a peptidoglycan and an outer membrane (see Figure 2). The peptidoglycan layer, common to both cell wall types, consists of a backbone of alternating units of N-acetylglucosamine and N-acetylmuramic acid to which peptides are attached by amide links. This heteropolymer is a highly cross linked mosaic and this gives it strength and rigidity. In gram positive bacteria, this layer also contains two carbohydr ate antigens, a simple polysaccharide and a teichoic acid; these are usually the type specific or major group antigens of the bacterium. Many of the bacteria also produce exopolysaccharides (see Figure 3) either as discrete capsules (for example, the Enterobacteriaceae K antigens) or unattached slime layers (for example, the Enterobacteriaceae M antigens). The vast majority of these polysaccharides are heteroglycans(03) composed of contiguous oligosaccharide repeating units. Their monosaccharide components are largely neutral hexoses, 6-deoxy hexoses and also amino sugars. (03) Pentose units are rare. (03) The capsular polysaccharides usually have a high content of acidic constituents such as uronic acids, phosphate groups, or pyruvate ketals. (01) , KMBT_363 , Adobe Acrobat 9.53 Paper Capture Plug-in
- Full Text:
A study of alienation and personality traits conducted among "Coloured" and white males in South Africa
- Shaw, Patrick Donovan Richard
- Authors: Shaw, Patrick Donovan Richard
- Date: 1987
- Subjects: Alienation (Soclal psychology) Alienation (Social psychology) -- Case studies -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3120 , http://hdl.handle.net/10962/d1004928
- Description: A measure of four types and five contexts of alienation, as well as ten personality traits, was obtained via the ·application of the Alienation Test and Howarth's Personality Questionnaire. The sample (~= 195) comprised of both high school pupils and adults drawn from the local population of English and Afrikaans speaking Whites and "Coloureds" from a town in the Eastern Cape of South Africa. These six sample groups allowed for comparisons on the measures for factors such as race, age and cultural differences. The literature review showed repeated reference to the "alienation" of the "Coloured" people of South Africa in the political, social and cultural spheres. However, the research in this area has been sparse. The main object of the study, therefore, was to determine if "Coloureds" do feel alienated, as well as the contexts of this alienation, using Whites as a comparative group. possible differences in personality traits between "Coloureds" and Whites have been associated with the differences in behaviour exhibited by these two groups, but past research has failed to find many differences. The second objective of this study, therefore, was to determine if there are differences between the personality traits of "Coloureds" and Whites, and to extend the past research. Researchers have shown that there is a relationship between alienation and personality traits, but have not adequately addressed the nature of this relationship or its implications. Following from this, the third objective of the study was to examine the relationship between alienation and personality traits, as well as their ability to predict alienation. Results on the Alienation Test showed that "Coloureds" do differ significantly from Whites and exhibit far higher levels of alienation. These differences are most marked on those types and contexts of alienation reflecting a distance from the social and political environment. Results on the personality measure showed minimal differences in personality traits between the groups. Where they were evident, they could be attributed to environmental factors. Lastly, there was a relationship between alienation and certain personality traits, but these traits had limited power to predict alienation. Taking all findings of the study into account, it is evident that the social environment, and specifically a discriminatory social environment, affects feelings of alienation to a far greater extent than personality traits. In addition, the large differences in scores of the "Coloured" and White groups on the measure of alienation and the minimal differences on the measure of personality, provides evidence that what is measured by alienation and what is measured by personality traits, are two distinctly different constructs.
- Full Text:
- Authors: Shaw, Patrick Donovan Richard
- Date: 1987
- Subjects: Alienation (Soclal psychology) Alienation (Social psychology) -- Case studies -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3120 , http://hdl.handle.net/10962/d1004928
- Description: A measure of four types and five contexts of alienation, as well as ten personality traits, was obtained via the ·application of the Alienation Test and Howarth's Personality Questionnaire. The sample (~= 195) comprised of both high school pupils and adults drawn from the local population of English and Afrikaans speaking Whites and "Coloureds" from a town in the Eastern Cape of South Africa. These six sample groups allowed for comparisons on the measures for factors such as race, age and cultural differences. The literature review showed repeated reference to the "alienation" of the "Coloured" people of South Africa in the political, social and cultural spheres. However, the research in this area has been sparse. The main object of the study, therefore, was to determine if "Coloureds" do feel alienated, as well as the contexts of this alienation, using Whites as a comparative group. possible differences in personality traits between "Coloureds" and Whites have been associated with the differences in behaviour exhibited by these two groups, but past research has failed to find many differences. The second objective of this study, therefore, was to determine if there are differences between the personality traits of "Coloureds" and Whites, and to extend the past research. Researchers have shown that there is a relationship between alienation and personality traits, but have not adequately addressed the nature of this relationship or its implications. Following from this, the third objective of the study was to examine the relationship between alienation and personality traits, as well as their ability to predict alienation. Results on the Alienation Test showed that "Coloureds" do differ significantly from Whites and exhibit far higher levels of alienation. These differences are most marked on those types and contexts of alienation reflecting a distance from the social and political environment. Results on the personality measure showed minimal differences in personality traits between the groups. Where they were evident, they could be attributed to environmental factors. Lastly, there was a relationship between alienation and certain personality traits, but these traits had limited power to predict alienation. Taking all findings of the study into account, it is evident that the social environment, and specifically a discriminatory social environment, affects feelings of alienation to a far greater extent than personality traits. In addition, the large differences in scores of the "Coloured" and White groups on the measure of alienation and the minimal differences on the measure of personality, provides evidence that what is measured by alienation and what is measured by personality traits, are two distinctly different constructs.
- Full Text:
A study of the nature, function and availability of orders of restitutio in integrum and specific performance as remedies in South African law
- Authors: Lambiris, Michael A
- Date: 1987
- Subjects: Restitutio in integrum (Roman law) Restitutio in integrum -- South Africa Remedies (Law) -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3703 , http://hdl.handle.net/10962/d1004752
- Description: This study is of two remedies that are available in South African law: orders of restitutio in integrum, and specific performance. The study demonstrates that, by treating these remedies as legal topics in their own right, a greater understanding emerges of their inherent characteristics, the role that they play in the law, and of the particular circumstances in which these remedies are available. An order of restitutio in integrum performs an important and unique function in South African law. The fundamental realisation is that it is a remedy in terms of which the courts exercise an extraordinary and discretionary power, and nullify ab initio legal transactions, or the legal consequences of events, which were previously perfectly valid and enforceable at law. Because of the extraordinary nature of this remedy, the circumstances in which it is available are limited by the requirement that iusta causa must exist to justify nullification. Further, before the remedy is available, the person seeking relief must have suffered loss or prejudice as a result of the event complained of. Finally, a mutual restoration of benefits received by the persons involved is required. The nature and effect of orders of restitutio in integrum, and the essential elements which determine the availability of the remedy, enable it to be distinguished from, and contrasted with, other remedies in South African law. An order of specific performance is available in South African law, at the option of a plaintiff, to enforce the actual performance of contractual undertakings. The remedy is appropriate to enforce positive undertakings, as well as acts of restraint. For the remedy to be available, it is firstly necessary that a contractual obligation be proved to exist. Secondly, performance of that obligation must be due. Thirdly, the performance sought must not in fact have already been rendered. These elements determine the availability of the remedy in particular factual circumstances, such as in cases involving pre-emptive rights. The nature and characteristics of the remedy are determined by principles of South African, and not English law. The remedy is available as of right in South African law, but subject to a discretionary power of a court to refuse to order specific performance. , KMBT_363 , Adobe Acrobat 9.53 Paper Capture Plug-in
- Full Text:
- Authors: Lambiris, Michael A
- Date: 1987
- Subjects: Restitutio in integrum (Roman law) Restitutio in integrum -- South Africa Remedies (Law) -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3703 , http://hdl.handle.net/10962/d1004752
- Description: This study is of two remedies that are available in South African law: orders of restitutio in integrum, and specific performance. The study demonstrates that, by treating these remedies as legal topics in their own right, a greater understanding emerges of their inherent characteristics, the role that they play in the law, and of the particular circumstances in which these remedies are available. An order of restitutio in integrum performs an important and unique function in South African law. The fundamental realisation is that it is a remedy in terms of which the courts exercise an extraordinary and discretionary power, and nullify ab initio legal transactions, or the legal consequences of events, which were previously perfectly valid and enforceable at law. Because of the extraordinary nature of this remedy, the circumstances in which it is available are limited by the requirement that iusta causa must exist to justify nullification. Further, before the remedy is available, the person seeking relief must have suffered loss or prejudice as a result of the event complained of. Finally, a mutual restoration of benefits received by the persons involved is required. The nature and effect of orders of restitutio in integrum, and the essential elements which determine the availability of the remedy, enable it to be distinguished from, and contrasted with, other remedies in South African law. An order of specific performance is available in South African law, at the option of a plaintiff, to enforce the actual performance of contractual undertakings. The remedy is appropriate to enforce positive undertakings, as well as acts of restraint. For the remedy to be available, it is firstly necessary that a contractual obligation be proved to exist. Secondly, performance of that obligation must be due. Thirdly, the performance sought must not in fact have already been rendered. These elements determine the availability of the remedy in particular factual circumstances, such as in cases involving pre-emptive rights. The nature and characteristics of the remedy are determined by principles of South African, and not English law. The remedy is available as of right in South African law, but subject to a discretionary power of a court to refuse to order specific performance. , KMBT_363 , Adobe Acrobat 9.53 Paper Capture Plug-in
- Full Text:
A study of the population dynamics, production and potential yield of the sardine Limnothrissa Miodon (Boulenger) in Lake Kariba
- Authors: Marshall, Brian Eric
- Date: 1987
- Subjects: Fishes Lake Tanganyika sardine
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5191 , http://hdl.handle.net/10962/d1001967
- Description: The limnology of Lake Kariba, especially those aspects that affect sardine biology, are described. The hydrological regime of the lake is seen as a major influence and may be one of the reasons why the fish are very much smaller in Kariba than they are in Lakes Tanganyika or Kivu. Growth was reassessed and there appeared to be a correlation between rates of growth and limnological parameters. In particular, the fish appeared to grow faster, but smaller, in the man-made lakes and this may be a consequence of food shortages brought about by their hydrological characteristics. Mortality rates were also much higher in Kariba and this tended to support the view that the lake is a relatively unsuitable habitat for the sardines. However, estimates of biomass, expressed in terms of lake volume, contradicted this as they were very similar in both Kariba and Tanganyika. The life history strategy of Limnothrissa in Kariba was therefore to reduce its size and increase its productivity in order to maintain the maximum possible biomass and its very high P/B̄ ratio was probably the means by which this was achieved. In terms of lake volume the predicted yields from the pelagic communities of Kariba and Tanganyika were very similar, equivalent to about 20 000 t annually for Kariba. This is close to the yield predicted by several empirical models and the fishery now appears to be entering a phase where increases in effort will not be matched by increased yields. The mechanisms for controlling effort in the fishery appear to be inadequate and particular concern was expressed about the lack of co-ordination between the Zimbabwean and Zambian fishery authorities in planning the development of this shared resource.
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- Authors: Marshall, Brian Eric
- Date: 1987
- Subjects: Fishes Lake Tanganyika sardine
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5191 , http://hdl.handle.net/10962/d1001967
- Description: The limnology of Lake Kariba, especially those aspects that affect sardine biology, are described. The hydrological regime of the lake is seen as a major influence and may be one of the reasons why the fish are very much smaller in Kariba than they are in Lakes Tanganyika or Kivu. Growth was reassessed and there appeared to be a correlation between rates of growth and limnological parameters. In particular, the fish appeared to grow faster, but smaller, in the man-made lakes and this may be a consequence of food shortages brought about by their hydrological characteristics. Mortality rates were also much higher in Kariba and this tended to support the view that the lake is a relatively unsuitable habitat for the sardines. However, estimates of biomass, expressed in terms of lake volume, contradicted this as they were very similar in both Kariba and Tanganyika. The life history strategy of Limnothrissa in Kariba was therefore to reduce its size and increase its productivity in order to maintain the maximum possible biomass and its very high P/B̄ ratio was probably the means by which this was achieved. In terms of lake volume the predicted yields from the pelagic communities of Kariba and Tanganyika were very similar, equivalent to about 20 000 t annually for Kariba. This is close to the yield predicted by several empirical models and the fishery now appears to be entering a phase where increases in effort will not be matched by increased yields. The mechanisms for controlling effort in the fishery appear to be inadequate and particular concern was expressed about the lack of co-ordination between the Zimbabwean and Zambian fishery authorities in planning the development of this shared resource.
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A survey of the curricula for the pre-service education of secondary school geography teachers in South Africa, with special reference to Transkei
- Authors: Mniki, Claribel Pumzile
- Date: 1987
- Subjects: Education -- Curricula , Education -- South Africa -- Transkei , Black people -- Education -- South Africa -- Transkei , Geography -- Study and teaching (Secondary) -- South Africa -- Transkei , Teachers -- Training of -- South Africa -- Transkei
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1340 , http://hdl.handle.net/10962/d1001406
- Description: Programmes designed for the pre-service education of secondary school geography teachers reflect the assumptions held by programme designers regarding the nature of education, teaching in general and geography teaching in particular. The general practice is that in universities, individual method lecturers design their programmes and in colleges within a department of education the programmes are centrally planned. Each programme focuses on a specific context. This, together with the autonomy enjoyed by university method lecturers in designing their courses, has resulted in the variations found in geography teacher education programmes. The evidence of this is found in the structure and duration of courses, the course content, the strategies used to educate teachers and the way in which the course is evaluated. This thesis is an attempt to establish consensus and divergence in pre-service education programmes for secondary school geography teachers regarding their organisation, specific knowledge imparted to student teachers; skills, values and attitudes developed. The pre-service education of secondary school geography teachers in South Africa is revealed in an analysis of views held by method lecturers, practising teachers in secondary schools, and student teachers and an analysis of course outlines , teaching practice assessment forms and geography method examination papers. Conclusions are drawn and recommendations made for improving the initial education of secondary school geography teachers in Transkei
- Full Text:
- Authors: Mniki, Claribel Pumzile
- Date: 1987
- Subjects: Education -- Curricula , Education -- South Africa -- Transkei , Black people -- Education -- South Africa -- Transkei , Geography -- Study and teaching (Secondary) -- South Africa -- Transkei , Teachers -- Training of -- South Africa -- Transkei
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1340 , http://hdl.handle.net/10962/d1001406
- Description: Programmes designed for the pre-service education of secondary school geography teachers reflect the assumptions held by programme designers regarding the nature of education, teaching in general and geography teaching in particular. The general practice is that in universities, individual method lecturers design their programmes and in colleges within a department of education the programmes are centrally planned. Each programme focuses on a specific context. This, together with the autonomy enjoyed by university method lecturers in designing their courses, has resulted in the variations found in geography teacher education programmes. The evidence of this is found in the structure and duration of courses, the course content, the strategies used to educate teachers and the way in which the course is evaluated. This thesis is an attempt to establish consensus and divergence in pre-service education programmes for secondary school geography teachers regarding their organisation, specific knowledge imparted to student teachers; skills, values and attitudes developed. The pre-service education of secondary school geography teachers in South Africa is revealed in an analysis of views held by method lecturers, practising teachers in secondary schools, and student teachers and an analysis of course outlines , teaching practice assessment forms and geography method examination papers. Conclusions are drawn and recommendations made for improving the initial education of secondary school geography teachers in Transkei
- Full Text: