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Explanation of the geological map of the country east of Kariba

- Broderick, T J

  • Authors: Broderick, T J
  • Date: 1977
  • Subjects: Geology -- Kariba, Lake (Zambia and Zimbabwe) -- Maps , Geology -- Kariba, Lake (Zambia and Zimbabwe)
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5075 , http://hdl.handle.net/10962/d1014650
  • Description: The area covers part of the western end of the Zambezi Metamorphic Belt as it is known in Rhodesia. Most of the rocks are paragneisses of various ages that have suffered a long and complex history which has taken them into the highest facies of metamorphism and into the realm of granitization. Only the Karoo sediments of the Zambezi Valley are unaffected by these metamorphic events. From the scanty geochronological results obtainable from the north of Rhodesia, the history of this area started more than 2 500 million years ago. In the east and south-east of the mapped area are a group of highly migmatized granitic gneisses which represent a continuation westwards of similar rocks found in the area described in Bulletin 51 by Wiles (1961}. These Urungwe Paragneisses are regarded as forrning the basement on which all other rocks in the area lie, although their relationship with the Basement Complex is unknown. Climatically Kariba is hot and humid. Mean summer temperatures average 30°C (86°F), with temperatures in October that often exceed 40°C (100°F). Away from the Lake the humidity decreases and the increased altitudes above the Escarpment have a cooling effect. The township's mean annual rainfall is 665 millimetres (26,2 inches), most of which falls in the months between November and February. Basically. the area is well timbered but population pressures in the tribal areas, and depredation by elephants elsewhere, have made serious inroads upon the natural vegetation. The gneissic terrain above the Escarpment is characterized by mufuti trees (Brachystegia boehmiz). The baobab (Adansonia digitata) is common in the larger river valleys and in the low-lying area surrounding the lake shore where it occurs together with mopane (Colophospermum mopane) and thick jessie bush. In the river valleys, trees typical of the Zambezi Valley are common and include the tamarind (Tamarindus indica), mumvey (Kigelia africana) and Steculia species. Buffalo beans (Mucuma coriacea) are not uncommon in grassy river-beds. Physiographically, the area can be subdivided into three distinct regions, all of which have a marked geological control. They are- (1) The fault-lined Gwembe trough which has subsequently been inundated by the waters of Lake Kariba to an average altitude of 487 metres (1 600 feet) above sea level since the completion of the dam across the upstream entrance to the Kariba Gorge in 1960. The fiat land that now forms part of the lake shore is underlain by sediments of Karoo age and these, in the mapped area, occupy the Charara and Gachegache Basins, that lie to the north and south respectively of the Msango Range. These fiat-lying areas give way sharply to the gneissic terrain of the Zambezi Metamorphic Belt along the fault-lined Zambezi Escarpment. (2) The northern boundary of the area and the Msango Range are underlain by metasediments of the Makuti Group. The relief is strongly influenced by the regional geological structure of these complexly folded rocks with resistant meta-arkose and quartzite forming the sharp ridges and metapelites occupying the valleys. The ridges and valleys trend eastwards in the Msango Range, but along the northern boundary they trend north-westwards. (3) The linear topographic features of the Makuti Group terrain give way southwards to the older gneisses along an abrupt scarp edge, the base of which is marked by the Tsororo River. This terrain of gneisses is very rugged and highly dissected above the Zambezi Escarpment until it flattens out, at about 900 metres (2 950 feet) above sea level, into the Urungwe Tribal Trust Lands. In the rugged country above the Escarpment, granulites of the Piriwiri Group stand out above the gneisses as steep-sided conical bills. The country rises in a series of fault-lined steps to its highest point, at Nyamangwe trigonometrical beacon, which stands at 1 336 metres (4 382 feet) above sea level.
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  • Date Issued: 1977

Eyang Hle eyang

- Church music workshop participants, Molefe, S. C., Dargie, Dave

Eyang ka lefase

- Church music workshop participants, Molefe, S. C., Dargie, Dave

Feeding ecology of the cichlid fish Sarotherodon Mossambicus in Lake Sibaya, KwaZulu

- Bowen, Stephen H

  • Authors: Bowen, Stephen H
  • Date: 1977
  • Subjects: Cichlids -- Ecology , Fishes -- Ecology -- South Africa -- KwaZulu-Natal -- Sibaya, Lake
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:5837 , http://hdl.handle.net/10962/d1009688 , Cichlids -- Ecology , Fishes -- Ecology -- South Africa -- KwaZulu-Natal -- Sibaya, Lake
  • Description: The feeding of the cichlid fish Sarotherodon mossambicus in Lake Sibaya, KwaZulu, was studied in relation to various biotic and abiotic features of the l ake environment from January, 1973 to July, 1975. The primary goal of the study was to determine the cause of stunting and poor condition of adults in this population. Juvenile and adult S. mossambicus feed on a mixture of detritus, bacteria and diatoms that occurs as a flocculent layer on sand substrates throughout the lake. Concentrated gastric acid, commonly at pH values of 1.5 and lower, lyses diatoms and bacteria which are subsequently digested in the intestine. This is the first report of digestion of bacteria by a fish, and the nutritional significance of the finding is discussed. Juveniles feed predominantly on shallow sand terraces found along the margin of much of the lake, while adults usually feed in offshore waters at depths of 3 m and greater. Benthic floc from feeding areas of juveniles and adults have similar concentrations of organic matter, total carbohydrate, soluble carbohydrate and calories, but differ markedly in respect to diatom and protein concentration. Diatom concentrations are generally high in terrace floc but are consistently low in floc from deep water. Protein concentration of benthic floc decreases with increasing depth from 0 - 5 m. Partial correlation analysis shows that protein and diatom concentrations have no correlation independent. of their common relationship to depth, and the evidence implicates detrital bacteria as the primary source of protein in benthic floc. Probable causes of the observed distributions of diatoms and protein are discussed. The protein content of benthic floc profoundly influences its nutritional value. A comparison with available data on animal nutrition shows that the ratio of digestible protein to digestible energy in floc in the shallows is high enough that this food resource would be expected to support good growth, but the ratio for deep water floc is so low that it would be expected to result in conspicuous malnutrition. Thus, inadequate dietary protein is identified as the principal cause of stunting and poor condition of adult S· mossambicus in Lake Sibaya; It is argued that the ratio of digestible protein to digestible calories can be expected to determine the food value of particulate organic matter that includes amorphous detritus in other ecosystems. Despite stunting and poor condition of adults, S. mossambicus are abundant in Lake Sibaya. The precocious breeding of this population is discussed as an adaptation that allows it to maximize reproductive output given the limited resources available to adults. Juvenile S. mossambicus perform daily movements from deep water onto the terraces where they feed and then back into deep water. During periods of relatively low lake level when terrace waters were usually less than 1.5 m deep (1-73 to 1-74), juveniles were present on the terrace throughout daylight hours. At relatively high lake levels (7-74 to 8-75), juveniles were present on the terraces for only about five hours following sunset. Periods of heavy wave action interrupt feeding activity and result in reduced numbers of fish in terrace waters. The possible roles of predator avoidance and temperature in determination of daily feeding behavior are discussed. Daily energy assimilation by juveniles, estimated by a field technique, is approximately 115 cal per g fish dry weight.
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  • Date Issued: 1977

Fika moya oyincewele

- Music workshop participants, Ciliza, C., Father, Dargie, Dave

Fika moya oyincewele

- Music workshop participants, Ciliza, C., Father, Dargie, Dave

Fika moya oyincewele

- Music workshop participants, Ciliza, C., Father, Dargie, Dave

Fika Moya oyincwele

- Church music workshop participants, Ciliza, C. Father, Dargie, Dave

Fishes of the family Pseudochromidae (Perciformes) in the Western Indian Ocean (with plates 1-5); and a note on Anisochromis Kenya

- Lubbock, Roger, Smith, Margaret Mary

  • Authors: Lubbock, Roger , Smith, Margaret Mary
  • Date: 1977
  • Subjects: Pseudochromidae -- Indian Ocean , Marine fishes -- Indian Ocean
  • Language: English
  • Type: Text
  • Identifier: vital:14987 , http://hdl.handle.net/10962/d1018955 , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 35
  • Description: An account is given of pseudochromid fishes from the western Indian Ocean. Seven species of Pseudochromis (four of which are new) and six species of Chlidichthys (three of which are new) are recorded and described, with details of ecology. Keys are provided. , This note lists specimens caught to date and increase in distribution of Anisochromis kenyae. Two colour illustrations demonstrate the sexual dichromatism. , Rhodes University Libraries (Digitisation)
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  • Date Issued: 1977

Gewestelike verskynsels in die Afrikaanse spreektaal van Oos-Kaapland met spesiale verwysing na Albanie

- Van der Mescht, J W F (Johannes Willem Frederik)

  • Authors: Van der Mescht, J W F (Johannes Willem Frederik)
  • Date: 1977
  • Subjects: Afrikaans language -- Dialects
  • Language: Afrikaans
  • Type: Thesis , Masters , MA
  • Identifier: vital:3643 , http://hdl.handle.net/10962/d1014568
  • Description: By 'n dialekgeografiese studie van hierdie aard sal dit by uitstek die verstandigste wees om te begin by 'n omgewing waarin die ondersoeker gebore is en grootgeword het. Die omgang van die ondersoek en die uitgestrektheid van die gebied wat hierby betrokke is maak dit egter vir 'n boorling net so moeilik as vir 'n goeie waarnemer uit enige ander spraakgebied wat ook daartoe in staat behoort te wees om bepaalde foniese, leksikale, grammatiese, semantiese en sintaktiese verskynsels, eienaardighede en tendensies in die spreektaal op te merk. My bekendheid en omgang met Afrikaanssprekendes in hierdie streek wil ek nietemin kortliks soos volg aandui: (a) Wat vir hierdie studie as "randgebiede" beskou kan word. Gebore en opgegroei in Willowmore (19 jaar), onderwysopleiding op Graaff-Reinet (3 jaar). Onderwysondervinding In die distrik Steytlerville (2 ½ jaar). (b) Die eintlike ondersoekgebied. Onderwysondervinding in Oos-Londen en omgewing (6 jaar) , Grahamstad (10 ½ jaar) afgesien van talle lisensies in Oos-Londen en Port E1izabeth en besoeke aan omliggende dorpe en distrikte.
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  • Date Issued: 1977

Gloria

- Xhosa festival workshop participants, Mpotulo, Lambert, Dargie, Dave

Gloria

- Church Choir, Composer not Specified, Dargie, Dave

Gloria

- Xhosa festival workshop participants, Mpotulo, Lambert, Dargie, Dave

Glory glory

- Xhosa composers's workshop participants, Dargie, Dave

Going home

- Mann, Chris

  • Authors: Mann, Chris
  • Date: 1977
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/459608 , vital:75846 , https://journals.co.za/doi/epdf/10.10520/AJA00284459_356
  • Description: New Coin is one of South Africa's most established and influential poetry journals. It publishes poetry, and poetry-related reviews, commentary and interviews. New Coin places a particular emphasis on evolving forms and experimental use of the English language in poetry in the South African context. In this sense it has traced the most exciting trends and currents in contemporary poetry in South Africa for a decade of more. The journal is published twice a year in June and December by the Institute for the Study of English in Africa (ISEA), Rhodes University.
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  • Date Issued: 1977

Hamba nathi Nkosi

- Music workshop participants, Composer not specified, Dargie, Dave

Hambani Enhlabeni

- Mkwanase, Patricia, Composer not specified, Dargie, Dave

Hambani ngobuhle

- Music workshop participants, Group Composition, Dargie, Dave

Harpsichord instrumental

- Church Choir, Composer not specified, Dargie, Dave

Hayi, hayi bantu bakokwethu

- Nokonyothi, Joe, Dargie, Dave

  • Authors: Nokonyothi, Joe , Dargie, Dave
  • Date: 1977
  • Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Lumko sa
  • Language: isiXhosa
  • Type: sound recordings , field recordings , sound recording-musical
  • Identifier: http://hdl.handle.net/10962/379753 , vital:67379 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC076b-12
  • Description: Unaccompanied praise singer praises God at Xhosa music festival mass. Missa likaMoya Oyingcwele. The mass of the Holy Spirit.
  • Full Text: false
  • Date Issued: 1977
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