Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 13 of 13 for “"Eastern transvaal"”.
-
Acid deposition in the Eastern Transvaal Highveld
The Transvaal Highveld has one of the largest potentials for air pollution in South Africa. The area around Witbank and Middleburg in the eastern Transvaal Highveld, is highly industrialized with several coal-fired power stations, burning coal dumps and heavy industries. The pollution levels in …
-
Selected magnetic and gravity anomalies in the eastern Transvaal and their possible relation to the Rustenburg Layered Suite /
Dissertation (MSc)--University of Pretoria, 1988.
-
A petrographical and mineralogical investigation of the rocks of the Bushveld Igneous Complex in the Tauteshoogte-Roossenekal area of the Eastern Transvaal
… Rocks of the Layered Sequence occupy the eastern half of the area and consist of the Main and Upper Zones which were subdivided into various subzones on the basis of characteristic rock types and marker horizons. Mineralogical investigations are restricted to the minerals from rocks of the …
-
Impact on soil chemistry of atmospheric sulfur fallout near Arnot coal-fired power station, in the Eastern Transvaal highveld region, South Africa
The objective of the study was to evaluate the potential impact of atmospheric sulfur deposition on the soils surrounding Arnot power station. In particular, the study focused on the relationship between sulfur and organic carbon (OC) and on the various pools of sulfur in the soil. A representative …
-
An investigation into vanadium contamination of soil and its effects on plants
… industrial wastes from a chemical plant in the eastern Transvaal. A review of the literature showed that although the emission of vanadium into the environment is on the increase, very little information is available regarding its behaviour and impact as an environmental pollutant. This study is …
-
Aspects of the geochemistry of Onverwacht Group lavas from the Barberton Greenstone Belt
… belt) crop out in the rugged terrain of the eastern Transvaal lowveld. The results of an investigation into the geochemistry of the lavas, mainly from the three lower Formations of the Onverwacht Group - the Lower Ultramafic Unit (LUU) - are reported. While the lavas generally show excellent …
-
Glass beads as indicators of contact and trade in Southern Africa ca. AD 900 - AD 1250
… beads have been found at Iron Age sites in the eastern Transvaal Lowveld and at inland sites along the Limpopo Valley and in Botswana. Similar looking types of beads, referred to as small seed beads, were also used in the Muslim mercantile networks and maritime trade in the Indian Ocean, and …
-
Some factors affecting the feeding ecology and socio-biology of the samango monkey, cercopithecus albogularis schwarzi roberts, 1931
… the samango monkey was studied in forest on the Eastern Transvaal Escarpment. The taxonomy of the samango monkey in southern africa is discussed, as well as it•s relationship to other forest Cercopithecines. The adaptations and limitations of the animal •s intrinsic characteristics in a forest …
-
A pre-impoundment study of the biological diversity of the benthic macro-invertebrate fauna of the Sabie-Sand River system
The Kruger National Park (KNP) in the Eastern Transvaal provides a classic example of the potential conflict of interests between the industrial, agricultural and domestic sectors and conservation. The KNP is situated on the north-eastern border of South Africa and receives the flow of six rivers …
-
Assessment of air pollution impacts on vegetation in South Africa
… injury symptoms observed on pine trees in the Eastern Transvaal area. The impact of urban air pollution in the Cape Town area was evaluated by exposing bio-indicator plants in a network of eight biomonitoring network stations from June 1985 to May 1988. Sensitive Freesia and Gladiolus cultivars …
-
Response of kikuyu grass (Pennisetum clandestinum) to irrigation with saline, sodic wastes and nitrogenous, manganiferous effluent
… Metal Company (MMC) situated in Nelspruit, Eastern Transvaal, South Africa produces a manganiferous saline effluent from a manganese ore leaching process. The high NH₄ content of the waste has been identified as a possible nitrogen fertilizer source. Irrigation of the MMC waste over nearby …
-
Factors influential in the coverage of environmental issues by the South African press
… and the Sappi paper mill effluent spill into Eastern Transvaal rivers (1989), in two South African daily newspapers, The Star and The Citizen. A combination quantitative-qualitative content analysis was undertaken on reports by these newspapers to assess the nature of the news values operating …
-
Etiology and control of some fruit diseases of avocado (Persea Americana Mill.) at Westfalia Estate
… fruit disease at Westfalia Estate, in the North Eastern Transvaal (longitude 30°10' and latitude 23°45'). Losses caused by the disease were investigated in relation to rainfall, cultivar, time of harvest, root rot severity of trees and the position of the fruit on the tree. A detailed description …